diff options
Diffstat (limited to 'drivers')
107 files changed, 1465 insertions, 2622 deletions
diff --git a/drivers/acpi/acpi_pnp.c b/drivers/acpi/acpi_pnp.c index b193f8425999..ff6d8adc9cda 100644 --- a/drivers/acpi/acpi_pnp.c +++ b/drivers/acpi/acpi_pnp.c @@ -304,6 +304,8 @@ static const struct acpi_device_id acpi_pnp_device_ids[] = { {"PNPb006"}, /* cs423x-pnpbios */ {"CSC0100"}, + {"CSC0103"}, + {"CSC0110"}, {"CSC0000"}, {"GIM0100"}, /* Guillemot Turtlebeach something appears to be cs4232 compatible */ /* es18xx-pnpbios */ diff --git a/drivers/acpi/resource.c b/drivers/acpi/resource.c index 5589a6e2a023..8244f013f210 100644 --- a/drivers/acpi/resource.c +++ b/drivers/acpi/resource.c @@ -573,7 +573,7 @@ EXPORT_SYMBOL_GPL(acpi_dev_get_resources); * @ares: Input ACPI resource object. * @types: Valid resource types of IORESOURCE_XXX * - * This is a hepler function to support acpi_dev_get_resources(), which filters + * This is a helper function to support acpi_dev_get_resources(), which filters * ACPI resource objects according to resource types. */ int acpi_dev_filter_resource_type(struct acpi_resource *ares, diff --git a/drivers/acpi/sbshc.c b/drivers/acpi/sbshc.c index 26e5b5060523..bf034f8b7c1a 100644 --- a/drivers/acpi/sbshc.c +++ b/drivers/acpi/sbshc.c @@ -14,6 +14,7 @@ #include <linux/delay.h> #include <linux/module.h> #include <linux/interrupt.h> +#include <linux/dmi.h> #include "sbshc.h" #define PREFIX "ACPI: " @@ -87,6 +88,8 @@ enum acpi_smb_offset { ACPI_SMB_ALARM_DATA = 0x26, /* 2 bytes alarm data */ }; +static bool macbook; + static inline int smb_hc_read(struct acpi_smb_hc *hc, u8 address, u8 *data) { return ec_read(hc->offset + address, data); @@ -132,6 +135,8 @@ static int acpi_smbus_transaction(struct acpi_smb_hc *hc, u8 protocol, } mutex_lock(&hc->lock); + if (macbook) + udelay(5); if (smb_hc_read(hc, ACPI_SMB_PROTOCOL, &temp)) goto end; if (temp) { @@ -257,12 +262,29 @@ extern int acpi_ec_add_query_handler(struct acpi_ec *ec, u8 query_bit, acpi_handle handle, acpi_ec_query_func func, void *data); +static int macbook_dmi_match(const struct dmi_system_id *d) +{ + pr_debug("Detected MacBook, enabling workaround\n"); + macbook = true; + return 0; +} + +static struct dmi_system_id acpi_smbus_dmi_table[] = { + { macbook_dmi_match, "Apple MacBook", { + DMI_MATCH(DMI_BOARD_VENDOR, "Apple"), + DMI_MATCH(DMI_PRODUCT_NAME, "MacBook") }, + }, + { }, +}; + static int acpi_smbus_hc_add(struct acpi_device *device) { int status; unsigned long long val; struct acpi_smb_hc *hc; + dmi_check_system(acpi_smbus_dmi_table); + if (!device) return -EINVAL; diff --git a/drivers/ata/Kconfig b/drivers/ata/Kconfig index 5f601553b9b0..9dca4b995be0 100644 --- a/drivers/ata/Kconfig +++ b/drivers/ata/Kconfig @@ -270,6 +270,7 @@ config ATA_PIIX config SATA_DWC tristate "DesignWare Cores SATA support" depends on 460EX + select DW_DMAC help This option enables support for the on-chip SATA controller of the AppliedMicro processor 460EX. @@ -729,15 +730,6 @@ config PATA_SC1200 If unsure, say N. -config PATA_SCC - tristate "Toshiba's Cell Reference Set IDE support" - depends on PCI && PPC_CELLEB - help - This option enables support for the built-in IDE controller on - Toshiba Cell Reference Board. - - If unsure, say N. - config PATA_SCH tristate "Intel SCH PATA support" depends on PCI diff --git a/drivers/ata/Makefile b/drivers/ata/Makefile index b67e995179a9..40f7865f20a1 100644 --- a/drivers/ata/Makefile +++ b/drivers/ata/Makefile @@ -75,7 +75,6 @@ obj-$(CONFIG_PATA_PDC_OLD) += pata_pdc202xx_old.o obj-$(CONFIG_PATA_RADISYS) += pata_radisys.o obj-$(CONFIG_PATA_RDC) += pata_rdc.o obj-$(CONFIG_PATA_SC1200) += pata_sc1200.o -obj-$(CONFIG_PATA_SCC) += pata_scc.o obj-$(CONFIG_PATA_SCH) += pata_sch.o obj-$(CONFIG_PATA_SERVERWORKS) += pata_serverworks.o obj-$(CONFIG_PATA_SIL680) += pata_sil680.o diff --git a/drivers/ata/ahci.c b/drivers/ata/ahci.c index c7a92a743ed0..65ee94454bbd 100644 --- a/drivers/ata/ahci.c +++ b/drivers/ata/ahci.c @@ -66,6 +66,7 @@ enum board_ids { board_ahci_yes_fbs, /* board IDs for specific chipsets in alphabetical order */ + board_ahci_avn, board_ahci_mcp65, board_ahci_mcp77, board_ahci_mcp89, @@ -84,6 +85,8 @@ enum board_ids { static int ahci_init_one(struct pci_dev *pdev, const struct pci_device_id *ent); static int ahci_vt8251_hardreset(struct ata_link *link, unsigned int *class, unsigned long deadline); +static int ahci_avn_hardreset(struct ata_link *link, unsigned int *class, + unsigned long deadline); static void ahci_mcp89_apple_enable(struct pci_dev *pdev); static bool is_mcp89_apple(struct pci_dev *pdev); static int ahci_p5wdh_hardreset(struct ata_link *link, unsigned int *class, @@ -107,6 +110,11 @@ static struct ata_port_operations ahci_p5wdh_ops = { .hardreset = ahci_p5wdh_hardreset, }; +static struct ata_port_operations ahci_avn_ops = { + .inherits = &ahci_ops, + .hardreset = ahci_avn_hardreset, +}; + static const struct ata_port_info ahci_port_info[] = { /* by features */ [board_ahci] = { @@ -151,6 +159,12 @@ static const struct ata_port_info ahci_port_info[] = { .port_ops = &ahci_ops, }, /* by chipsets */ + [board_ahci_avn] = { + .flags = AHCI_FLAG_COMMON, + .pio_mask = ATA_PIO4, + .udma_mask = ATA_UDMA6, + .port_ops = &ahci_avn_ops, + }, [board_ahci_mcp65] = { AHCI_HFLAGS (AHCI_HFLAG_NO_FPDMA_AA | AHCI_HFLAG_NO_PMP | AHCI_HFLAG_YES_NCQ), @@ -290,14 +304,14 @@ static const struct pci_device_id ahci_pci_tbl[] = { { PCI_VDEVICE(INTEL, 0x1f27), board_ahci }, /* Avoton RAID */ { PCI_VDEVICE(INTEL, 0x1f2e), board_ahci }, /* Avoton RAID */ { PCI_VDEVICE(INTEL, 0x1f2f), board_ahci }, /* Avoton RAID */ - { PCI_VDEVICE(INTEL, 0x1f32), board_ahci }, /* Avoton AHCI */ - { PCI_VDEVICE(INTEL, 0x1f33), board_ahci }, /* Avoton AHCI */ - { PCI_VDEVICE(INTEL, 0x1f34), board_ahci }, /* Avoton RAID */ - { PCI_VDEVICE(INTEL, 0x1f35), board_ahci }, /* Avoton RAID */ - { PCI_VDEVICE(INTEL, 0x1f36), board_ahci }, /* Avoton RAID */ - { PCI_VDEVICE(INTEL, 0x1f37), board_ahci }, /* Avoton RAID */ - { PCI_VDEVICE(INTEL, 0x1f3e), board_ahci }, /* Avoton RAID */ - { PCI_VDEVICE(INTEL, 0x1f3f), board_ahci }, /* Avoton RAID */ + { PCI_VDEVICE(INTEL, 0x1f32), board_ahci_avn }, /* Avoton AHCI */ + { PCI_VDEVICE(INTEL, 0x1f33), board_ahci_avn }, /* Avoton AHCI */ + { PCI_VDEVICE(INTEL, 0x1f34), board_ahci_avn }, /* Avoton RAID */ + { PCI_VDEVICE(INTEL, 0x1f35), board_ahci_avn }, /* Avoton RAID */ + { PCI_VDEVICE(INTEL, 0x1f36), board_ahci_avn }, /* Avoton RAID */ + { PCI_VDEVICE(INTEL, 0x1f37), board_ahci_avn }, /* Avoton RAID */ + { PCI_VDEVICE(INTEL, 0x1f3e), board_ahci_avn }, /* Avoton RAID */ + { PCI_VDEVICE(INTEL, 0x1f3f), board_ahci_avn }, /* Avoton RAID */ { PCI_VDEVICE(INTEL, 0x2823), board_ahci }, /* Wellsburg RAID */ { PCI_VDEVICE(INTEL, 0x2827), board_ahci }, /* Wellsburg RAID */ { PCI_VDEVICE(INTEL, 0x8d02), board_ahci }, /* Wellsburg AHCI */ @@ -670,6 +684,79 @@ static int ahci_p5wdh_hardreset(struct ata_link *link, unsigned int *class, return rc; } +/* + * ahci_avn_hardreset - attempt more aggressive recovery of Avoton ports. + * + * It has been observed with some SSDs that the timing of events in the + * link synchronization phase can leave the port in a state that can not + * be recovered by a SATA-hard-reset alone. The failing signature is + * SStatus.DET stuck at 1 ("Device presence detected but Phy + * communication not established"). It was found that unloading and + * reloading the driver when this problem occurs allows the drive + * connection to be recovered (DET advanced to 0x3). The critical + * component of reloading the driver is that the port state machines are + * reset by bouncing "port enable" in the AHCI PCS configuration + * register. So, reproduce that effect by bouncing a port whenever we + * see DET==1 after a reset. + */ +static int ahci_avn_hardreset(struct ata_link *link, unsigned int *class, + unsigned long deadline) +{ + const unsigned long *timing = sata_ehc_deb_timing(&link->eh_context); + struct ata_port *ap = link->ap; + struct ahci_port_priv *pp = ap->private_data; + struct ahci_host_priv *hpriv = ap->host->private_data; + u8 *d2h_fis = pp->rx_fis + RX_FIS_D2H_REG; + unsigned long tmo = deadline - jiffies; + struct ata_taskfile tf; + bool online; + int rc, i; + + DPRINTK("ENTER\n"); + + ahci_stop_engine(ap); + + for (i = 0; i < 2; i++) { + u16 val; + u32 sstatus; + int port = ap->port_no; + struct ata_host *host = ap->host; + struct pci_dev *pdev = to_pci_dev(host->dev); + + /* clear D2H reception area to properly wait for D2H FIS */ + ata_tf_init(link->device, &tf); + tf.command = ATA_BUSY; + ata_tf_to_fis(&tf, 0, 0, d2h_fis); + + rc = sata_link_hardreset(link, timing, deadline, &online, + ahci_check_ready); + + if (sata_scr_read(link, SCR_STATUS, &sstatus) != 0 || + (sstatus & 0xf) != 1) + break; + + ata_link_printk(link, KERN_INFO, "avn bounce port%d\n", + port); + + pci_read_config_word(pdev, 0x92, &val); + val &= ~(1 << port); + pci_write_config_word(pdev, 0x92, val); + ata_msleep(ap, 1000); + val |= 1 << port; + pci_write_config_word(pdev, 0x92, val); + deadline += tmo; + } + + hpriv->start_engine(ap); + + if (online) + *class = ahci_dev_classify(ap); + + DPRINTK("EXIT, rc=%d, class=%u\n", rc, *class); + return rc; +} + + #ifdef CONFIG_PM static int ahci_pci_device_suspend(struct pci_dev *pdev, pm_message_t mesg) { diff --git a/drivers/ata/ahci_st.c b/drivers/ata/ahci_st.c index ea0ff005b86c..8ff428fe8e0f 100644 --- a/drivers/ata/ahci_st.c +++ b/drivers/ata/ahci_st.c @@ -37,7 +37,6 @@ struct st_ahci_drv_data { struct reset_control *pwr; struct reset_control *sw_rst; struct reset_control *pwr_rst; - struct ahci_host_priv *hpriv; }; static void st_ahci_configure_oob(void __iomem *mmio) @@ -55,9 +54,10 @@ static void st_ahci_configure_oob(void __iomem *mmio) writel(new_val, mmio + ST_AHCI_OOBR); } -static int st_ahci_deassert_resets(struct device *dev) +static int st_ahci_deassert_resets(struct ahci_host_priv *hpriv, + struct device *dev) { - struct st_ahci_drv_data *drv_data = dev_get_drvdata(dev); + struct st_ahci_drv_data *drv_data = hpriv->plat_data; int err; if (drv_data->pwr) { @@ -90,8 +90,8 @@ static int st_ahci_deassert_resets(struct device *dev) static void st_ahci_host_stop(struct ata_host *host) { struct ahci_host_priv *hpriv = host->private_data; + struct st_ahci_drv_data *drv_data = hpriv->plat_data; struct device *dev = host->dev; - struct st_ahci_drv_data *drv_data = dev_get_drvdata(dev); int err; if (drv_data->pwr) { @@ -103,29 +103,30 @@ static void st_ahci_host_stop(struct ata_host *host) ahci_platform_disable_resources(hpriv); } -static int st_ahci_probe_resets(struct platform_device *pdev) +static int st_ahci_probe_resets(struct ahci_host_priv *hpriv, + struct device *dev) { - struct st_ahci_drv_data *drv_data = platform_get_drvdata(pdev); + struct st_ahci_drv_data *drv_data = hpriv->plat_data; - drv_data->pwr = devm_reset_control_get(&pdev->dev, "pwr-dwn"); + drv_data->pwr = devm_reset_control_get(dev, "pwr-dwn"); if (IS_ERR(drv_data->pwr)) { - dev_info(&pdev->dev, "power reset control not defined\n"); + dev_info(dev, "power reset control not defined\n"); drv_data->pwr = NULL; } - drv_data->sw_rst = devm_reset_control_get(&pdev->dev, "sw-rst"); + drv_data->sw_rst = devm_reset_control_get(dev, "sw-rst"); if (IS_ERR(drv_data->sw_rst)) { - dev_info(&pdev->dev, "soft reset control not defined\n"); + dev_info(dev, "soft reset control not defined\n"); drv_data->sw_rst = NULL; } - drv_data->pwr_rst = devm_reset_control_get(&pdev->dev, "pwr-rst"); + drv_data->pwr_rst = devm_reset_control_get(dev, "pwr-rst"); if (IS_ERR(drv_data->pwr_rst)) { - dev_dbg(&pdev->dev, "power soft reset control not defined\n"); + dev_dbg(dev, "power soft reset control not defined\n"); drv_data->pwr_rst = NULL; } - return st_ahci_deassert_resets(&pdev->dev); + return st_ahci_deassert_resets(hpriv, dev); } static struct ata_port_operations st_ahci_port_ops = { @@ -154,15 +155,12 @@ static int st_ahci_probe(struct platform_device *pdev) if (!drv_data) return -ENOMEM; - platform_set_drvdata(pdev, drv_data); - hpriv = ahci_platform_get_resources(pdev); if (IS_ERR(hpriv)) return PTR_ERR(hpriv); + hpriv->plat_data = drv_data; - drv_data->hpriv = hpriv; - - err = st_ahci_probe_resets(pdev); + err = st_ahci_probe_resets(hpriv, &pdev->dev); if (err) return err; @@ -170,7 +168,7 @@ static int st_ahci_probe(struct platform_device *pdev) if (err) return err; - st_ahci_configure_oob(drv_data->hpriv->mmio); + st_ahci_configure_oob(hpriv->mmio); err = ahci_platform_init_host(pdev, hpriv, &st_ahci_port_info, &ahci_platform_sht); @@ -185,8 +183,9 @@ static int st_ahci_probe(struct platform_device *pdev) #ifdef CONFIG_PM_SLEEP static int st_ahci_suspend(struct device *dev) { - struct st_ahci_drv_data *drv_data = dev_get_drvdata(dev); - struct ahci_host_priv *hpriv = drv_data->hpriv; + struct ata_host *host = dev_get_drvdata(dev); + struct ahci_host_priv *hpriv = host->private_data; + struct st_ahci_drv_data *drv_data = hpriv->plat_data; int err; err = ahci_platform_suspend_host(dev); @@ -208,21 +207,21 @@ static int st_ahci_suspend(struct device *dev) static int st_ahci_resume(struct device *dev) { - struct st_ahci_drv_data *drv_data = dev_get_drvdata(dev); - struct ahci_host_priv *hpriv = drv_data->hpriv; + struct ata_host *host = dev_get_drvdata(dev); + struct ahci_host_priv *hpriv = host->private_data; int err; err = ahci_platform_enable_resources(hpriv); if (err) return err; - err = st_ahci_deassert_resets(dev); + err = st_ahci_deassert_resets(hpriv, dev); if (err) { ahci_platform_disable_resources(hpriv); return err; } - st_ahci_configure_oob(drv_data->hpriv->mmio); + st_ahci_configure_oob(hpriv->mmio); return ahci_platform_resume_host(dev); } diff --git a/drivers/ata/libahci.c b/drivers/ata/libahci.c index 61a9c07e0dff..287c4ba0219f 100644 --- a/drivers/ata/libahci.c +++ b/drivers/ata/libahci.c @@ -1707,8 +1707,7 @@ static void ahci_handle_port_interrupt(struct ata_port *ap, if (unlikely(resetting)) status &= ~PORT_IRQ_BAD_PMP; - /* if LPM is enabled, PHYRDY doesn't mean anything */ - if (ap->link.lpm_policy > ATA_LPM_MAX_POWER) { + if (sata_lpm_ignore_phy_events(&ap->link)) { status &= ~PORT_IRQ_PHYRDY; ahci_scr_write(&ap->link, SCR_ERROR, SERR_PHYRDY_CHG); } diff --git a/drivers/ata/libata-core.c b/drivers/ata/libata-core.c index f6cb1f1b30b7..577849c6611a 100644 --- a/drivers/ata/libata-core.c +++ b/drivers/ata/libata-core.c @@ -4235,7 +4235,7 @@ static const struct ata_blacklist_entry ata_device_blacklist [] = { ATA_HORKAGE_ZERO_AFTER_TRIM, }, { "Crucial_CT*MX100*", "MU01", ATA_HORKAGE_NO_NCQ_TRIM | ATA_HORKAGE_ZERO_AFTER_TRIM, }, - { "Samsung SSD 850 PRO*", NULL, ATA_HORKAGE_NO_NCQ_TRIM | + { "Samsung SSD 8*", NULL, ATA_HORKAGE_NO_NCQ_TRIM | ATA_HORKAGE_ZERO_AFTER_TRIM, }, /* @@ -6752,6 +6752,38 @@ u32 ata_wait_register(struct ata_port *ap, void __iomem *reg, u32 mask, u32 val, return tmp; } +/** + * sata_lpm_ignore_phy_events - test if PHY event should be ignored + * @link: Link receiving the event + * + * Test whether the received PHY event has to be ignored or not. + * + * LOCKING: + * None: + * + * RETURNS: + * True if the event has to be ignored. + */ +bool sata_lpm_ignore_phy_events(struct ata_link *link) +{ + unsigned long lpm_timeout = link->last_lpm_change + + msecs_to_jiffies(ATA_TMOUT_SPURIOUS_PHY); + + /* if LPM is enabled, PHYRDY doesn't mean anything */ + if (link->lpm_policy > ATA_LPM_MAX_POWER) + return true; + + /* ignore the first PHY event after the LPM policy changed + * as it is might be spurious + */ + if ((link->flags & ATA_LFLAG_CHANGED) && + time_before(jiffies, lpm_timeout)) + return true; + + return false; +} +EXPORT_SYMBOL_GPL(sata_lpm_ignore_phy_events); + /* * Dummy port_ops */ diff --git a/drivers/ata/libata-eh.c b/drivers/ata/libata-eh.c index 07f41be38fbe..cf0022ec07f2 100644 --- a/drivers/ata/libata-eh.c +++ b/drivers/ata/libata-eh.c @@ -3597,6 +3597,9 @@ static int ata_eh_set_lpm(struct ata_link *link, enum ata_lpm_policy policy, } } + link->last_lpm_change = jiffies; + link->flags |= ATA_LFLAG_CHANGED; + return 0; fail: diff --git a/drivers/ata/pata_scc.c b/drivers/ata/pata_scc.c deleted file mode 100644 index 5cd60d6388ec..000000000000 --- a/drivers/ata/pata_scc.c +++ /dev/null @@ -1,1110 +0,0 @@ -/* - * Support for IDE interfaces on Celleb platform - * - * (C) Copyright 2006 TOSHIBA CORPORATION - * - * This code is based on drivers/ata/ata_piix.c: - * Copyright 2003-2005 Red Hat Inc - * Copyright 2003-2005 Jeff Garzik - * Copyright (C) 1998-1999 Andrzej Krzysztofowicz, Author and Maintainer - * Copyright (C) 1998-2000 Andre Hedrick <andre@linux-ide.org> - * Copyright (C) 2003 Red Hat Inc - * - * and drivers/ata/ahci.c: - * Copyright 2004-2005 Red Hat, Inc. - * - * and drivers/ata/libata-core.c: - * Copyright 2003-2004 Red Hat, Inc. All rights reserved. - * Copyright 2003-2004 Jeff Garzik - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License along - * with this program; if not, write to the Free Software Foundation, Inc., - * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. - */ - -#include <linux/kernel.h> -#include <linux/module.h> -#include <linux/pci.h> -#include <linux/blkdev.h> -#include <linux/delay.h> -#include <linux/device.h> -#include <scsi/scsi_host.h> -#include <linux/libata.h> - -#define DRV_NAME "pata_scc" -#define DRV_VERSION "0.3" - -#define PCI_DEVICE_ID_TOSHIBA_SCC_ATA 0x01b4 - -/* PCI BARs */ -#define SCC_CTRL_BAR 0 -#define SCC_BMID_BAR 1 - -/* offset of CTRL registers */ -#define SCC_CTL_PIOSHT 0x000 -#define SCC_CTL_PIOCT 0x004 -#define SCC_CTL_MDMACT 0x008 -#define SCC_CTL_MCRCST 0x00C -#define SCC_CTL_SDMACT 0x010 -#define SCC_CTL_SCRCST 0x014 -#define SCC_CTL_UDENVT 0x018 -#define SCC_CTL_TDVHSEL 0x020 -#define SCC_CTL_MODEREG 0x024 -#define SCC_CTL_ECMODE 0xF00 -#define SCC_CTL_MAEA0 0xF50 -#define SCC_CTL_MAEC0 0xF54 -#define SCC_CTL_CCKCTRL 0xFF0 - -/* offset of BMID registers */ -#define SCC_DMA_CMD 0x000 -#define SCC_DMA_STATUS 0x004 -#define SCC_DMA_TABLE_OFS 0x008 -#define SCC_DMA_INTMASK 0x010 -#define SCC_DMA_INTST 0x014 -#define SCC_DMA_PTERADD 0x018 -#define SCC_REG_CMD_ADDR 0x020 -#define SCC_REG_DATA 0x000 -#define SCC_REG_ERR 0x004 -#define SCC_REG_FEATURE 0x004 -#define SCC_REG_NSECT 0x008 -#define SCC_REG_LBAL 0x00C -#define SCC_REG_LBAM 0x010 -#define SCC_REG_LBAH 0x014 -#define SCC_REG_DEVICE 0x018 -#define SCC_REG_STATUS 0x01C -#define SCC_REG_CMD 0x01C -#define SCC_REG_ALTSTATUS 0x020 - -/* register value */ -#define TDVHSEL_MASTER 0x00000001 -#define TDVHSEL_SLAVE 0x00000004 - -#define MODE_JCUSFEN 0x00000080 - -#define ECMODE_VALUE 0x01 - -#define CCKCTRL_ATARESET 0x00040000 -#define CCKCTRL_BUFCNT 0x00020000 -#define CCKCTRL_CRST 0x00010000 -#define CCKCTRL_OCLKEN 0x00000100 -#define CCKCTRL_ATACLKOEN 0x00000002 -#define CCKCTRL_LCLKEN 0x00000001 - -#define QCHCD_IOS_SS 0x00000001 - -#define QCHSD_STPDIAG 0x00020000 - -#define INTMASK_MSK 0xD1000012 -#define INTSTS_SERROR 0x80000000 -#define INTSTS_PRERR 0x40000000 -#define INTSTS_RERR 0x10000000 -#define INTSTS_ICERR 0x01000000 -#define INTSTS_BMSINT 0x00000010 -#define INTSTS_BMHE 0x00000008 -#define INTSTS_IOIRQS 0x00000004 -#define INTSTS_INTRQ 0x00000002 -#define INTSTS_ACTEINT 0x00000001 - - -/* PIO transfer mode table */ -/* JCHST */ -static const unsigned long JCHSTtbl[2][7] = { - {0x0E, 0x05, 0x02, 0x03, 0x02, 0x00, 0x00}, /* 100MHz */ - {0x13, 0x07, 0x04, 0x04, 0x03, 0x00, 0x00} /* 133MHz */ -}; - -/* JCHHT */ -static const unsigned long JCHHTtbl[2][7] = { - {0x0E, 0x02, 0x02, 0x02, 0x02, 0x00, 0x00}, /* 100MHz */ - {0x13, 0x03, 0x03, 0x03, 0x03, 0x00, 0x00} /* 133MHz */ -}; - -/* JCHCT */ -static const unsigned long JCHCTtbl[2][7] = { - {0x1D, 0x1D, 0x1C, 0x0B, 0x06, 0x00, 0x00}, /* 100MHz */ - {0x27, 0x26, 0x26, 0x0E, 0x09, 0x00, 0x00} /* 133MHz */ -}; - -/* DMA transfer mode table */ -/* JCHDCTM/JCHDCTS */ -static const unsigned long JCHDCTxtbl[2][7] = { - {0x0A, 0x06, 0x04, 0x03, 0x01, 0x00, 0x00}, /* 100MHz */ - {0x0E, 0x09, 0x06, 0x04, 0x02, 0x01, 0x00} /* 133MHz */ -}; - -/* JCSTWTM/JCSTWTS */ -static const unsigned long JCSTWTxtbl[2][7] = { - {0x06, 0x04, 0x03, 0x02, 0x02, 0x02, 0x00}, /* 100MHz */ - {0x09, 0x06, 0x04, 0x02, 0x02, 0x02, 0x02} /* 133MHz */ -}; - -/* JCTSS */ -static const unsigned long JCTSStbl[2][7] = { - {0x05, 0x05, 0x05, 0x05, 0x05, 0x05, 0x00}, /* 100MHz */ - {0x05, 0x05, 0x05, 0x05, 0x05, 0x05, 0x05} /* 133MHz */ -}; - -/* JCENVT */ -static const unsigned long JCENVTtbl[2][7] = { - {0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x00}, /* 100MHz */ - {0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02} /* 133MHz */ -}; - -/* JCACTSELS/JCACTSELM */ -static const unsigned long JCACTSELtbl[2][7] = { - {0x00, 0x00, 0x00, 0x00, 0x01, 0x01, 0x00}, /* 100MHz */ - {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01} /* 133MHz */ -}; - -static const struct pci_device_id scc_pci_tbl[] = { - { PCI_VDEVICE(TOSHIBA_2, PCI_DEVICE_ID_TOSHIBA_SCC_ATA), 0}, - { } /* terminate list */ -}; - -/** - * scc_set_piomode - Initialize host controller PATA PIO timings - * @ap: Port whose timings we are configuring - * @adev: um - * - * Set PIO mode for device. - * - * LOCKING: - * None (inherited from caller). - */ - -static void scc_set_piomode (struct ata_port *ap, struct ata_device *adev) -{ - unsigned int pio = adev->pio_mode - XFER_PIO_0; - void __iomem *ctrl_base = ap->host->iomap[SCC_CTRL_BAR]; - void __iomem *cckctrl_port = ctrl_base + SCC_CTL_CCKCTRL; - void __iomem *piosht_port = ctrl_base + SCC_CTL_PIOSHT; - void __iomem *pioct_port = ctrl_base + SCC_CTL_PIOCT; - unsigned long reg; - int offset; - - reg = in_be32(cckctrl_port); - if (reg & CCKCTRL_ATACLKOEN) - offset = 1; /* 133MHz */ - else - offset = 0; /* 100MHz */ - - reg = JCHSTtbl[offset][pio] << 16 | JCHHTtbl[offset][pio]; - out_be32(piosht_port, reg); - reg = JCHCTtbl[offset][pio]; - out_be32(pioct_port, reg); -} - -/** - * scc_set_dmamode - Initialize host controller PATA DMA timings - * @ap: Port whose timings we are configuring - * @adev: um - * - * Set UDMA mode for device. - * - * LOCKING: - * None (inherited from caller). - */ - -static void scc_set_dmamode (struct ata_port *ap, struct ata_device *adev) -{ - unsigned int udma = adev->dma_mode; - unsigned int is_slave = (adev->devno != 0); - u8 speed = udma; - void __iomem *ctrl_base = ap->host->iomap[SCC_CTRL_BAR]; - void __iomem *cckctrl_port = ctrl_base + SCC_CTL_CCKCTRL; - void __iomem *mdmact_port = ctrl_base + SCC_CTL_MDMACT; - void __iomem *mcrcst_port = ctrl_base + SCC_CTL_MCRCST; - void __iomem *sdmact_port = ctrl_base + SCC_CTL_SDMACT; - void __iomem *scrcst_port = ctrl_base + SCC_CTL_SCRCST; - void __iomem *udenvt_port = ctrl_base + SCC_CTL_UDENVT; - void __iomem *tdvhsel_port = ctrl_base + SCC_CTL_TDVHSEL; - int offset, idx; - - if (in_be32(cckctrl_port) & CCKCTRL_ATACLKOEN) - offset = 1; /* 133MHz */ - else - offset = 0; /* 100MHz */ - - if (speed >= XFER_UDMA_0) - idx = speed - XFER_UDMA_0; - else - return; - - if (is_slave) { - out_be32(sdmact_port, JCHDCTxtbl[offset][idx]); - out_be32(scrcst_port, JCSTWTxtbl[offset][idx]); - out_be32(tdvhsel_port, - (in_be32(tdvhsel_port) & ~TDVHSEL_SLAVE) | (JCACTSELtbl[offset][idx] << 2)); - } else { - out_be32(mdmact_port, JCHDCTxtbl[offset][idx]); - out_be32(mcrcst_port, JCSTWTxtbl[offset][idx]); - out_be32(tdvhsel_port, - (in_be32(tdvhsel_port) & ~TDVHSEL_MASTER) | JCACTSELtbl[offset][idx]); - } - out_be32(udenvt_port, - JCTSStbl[offset][idx] << 16 | JCENVTtbl[offset][idx]); -} - -unsigned long scc_mode_filter(struct ata_device *adev, unsigned long mask) -{ - /* errata A308 workaround: limit ATAPI UDMA mode to UDMA4 */ - if (adev->class == ATA_DEV_ATAPI && - (mask & (0xE0 << ATA_SHIFT_UDMA))) { - printk(KERN_INFO "%s: limit ATAPI UDMA to UDMA4\n", DRV_NAME); - mask &= ~(0xE0 << ATA_SHIFT_UDMA); - } - return mask; -} - -/** - * scc_tf_load - send taskfile registers to host controller - * @ap: Port to which output is sent - * @tf: ATA taskfile register set - * - * Note: Original code is ata_sff_tf_load(). - */ - -static void scc_tf_load (struct ata_port *ap, const struct ata_taskfile *tf) -{ - struct ata_ioports *ioaddr = &ap->ioaddr; - unsigned int is_addr = tf->flags & ATA_TFLAG_ISADDR; - - if (tf->ctl != ap->last_ctl) { - out_be32(ioaddr->ctl_addr, tf->ctl); - ap->last_ctl = tf->ctl; - ata_wait_idle(ap); - } - - if (is_addr && (tf->flags & ATA_TFLAG_LBA48)) { - out_be32(ioaddr->feature_addr, tf->hob_feature); - out_be32(ioaddr->nsect_addr, tf->hob_nsect); - out_be32(ioaddr->lbal_addr, tf->hob_lbal); - out_be32(ioaddr->lbam_addr, tf->hob_lbam); - out_be32(ioaddr->lbah_addr, tf->hob_lbah); - VPRINTK("hob: feat 0x%X nsect 0x%X, lba 0x%X 0x%X 0x%X\n", - tf->hob_feature, - tf->hob_nsect, - tf->hob_lbal, - tf->hob_lbam, - tf->hob_lbah); - } - - if (is_addr) { - out_be32(ioaddr->feature_addr, tf->feature); - out_be32(ioaddr->nsect_addr, tf->nsect); - out_be32(ioaddr->lbal_addr, tf->lbal); - out_be32(ioaddr->lbam_addr, tf->lbam); - out_be32(ioaddr->lbah_addr, tf->lbah); - VPRINTK("feat 0x%X nsect 0x%X lba 0x%X 0x%X 0x%X\n", - tf->feature, - tf->nsect, - tf->lbal, - tf->lbam, - tf->lbah); - } - - if (tf->flags & ATA_TFLAG_DEVICE) { - out_be32(ioaddr->device_addr, tf->device); - VPRINTK("device 0x%X\n", tf->device); - } - - ata_wait_idle(ap); -} - -/** - * scc_check_status - Read device status reg & clear interrupt - * @ap: port where the device is - * - * Note: Original code is ata_check_status(). - */ - -static u8 scc_check_status (struct ata_port *ap) -{ - return in_be32(ap->ioaddr.status_addr); -} - -/** - * scc_tf_read - input device's ATA taskfile shadow registers - * @ap: Port from which input is read - * @tf: ATA taskfile register set for storing input - * - * Note: Original code is ata_sff_tf_read(). - */ - -static void scc_tf_read (struct ata_port *ap, struct ata_taskfile *tf) -{ - struct ata_ioports *ioaddr = &ap->ioaddr; - - tf->command = scc_check_status(ap); - tf->feature = in_be32(ioaddr->error_addr); - tf->nsect = in_be32(ioaddr->nsect_addr); - tf->lbal = in_be32(ioaddr->lbal_addr); - tf->lbam = in_be32(ioaddr->lbam_addr); - tf->lbah = in_be32(ioaddr->lbah_addr); - tf->device = in_be32(ioaddr->device_addr); - - if (tf->flags & ATA_TFLAG_LBA48) { - out_be32(ioaddr->ctl_addr, tf->ctl | ATA_HOB); - tf->hob_feature = in_be32(ioaddr->error_addr); - tf->hob_nsect = in_be32(ioaddr->nsect_addr); - tf->hob_lbal = in_be32(ioaddr->lbal_addr); - tf->hob_lbam = in_be32(ioaddr->lbam_addr); - tf->hob_lbah = in_be32(ioaddr->lbah_addr); - out_be32(ioaddr->ctl_addr, tf->ctl); - ap->last_ctl = tf->ctl; - } -} - -/** - * scc_exec_command - issue ATA command to host controller - * @ap: port to which command is being issued - * @tf: ATA taskfile register set - * - * Note: Original code is ata_sff_exec_command(). - */ - -static void scc_exec_command (struct ata_port *ap, - const struct ata_taskfile *tf) -{ - DPRINTK("ata%u: cmd 0x%X\n", ap->print_id, tf->command); - - out_be32(ap->ioaddr.command_addr, tf->command); - ata_sff_pause(ap); -} - -/** - * scc_check_altstatus - Read device alternate status reg - * @ap: port where the device is - */ - -static u8 scc_check_altstatus (struct ata_port *ap) -{ - return in_be32(ap->ioaddr.altstatus_addr); -} - -/** - * scc_dev_select - Select device 0/1 on ATA bus - * @ap: ATA channel to manipulate - * @device: ATA device (numbered from zero) to select - * - * Note: Original code is ata_sff_dev_select(). - */ - -static void scc_dev_select (struct ata_port *ap, unsigned int device) -{ - u8 tmp; - - if (device == 0) - tmp = ATA_DEVICE_OBS; - else - tmp = ATA_DEVICE_OBS | ATA_DEV1; - - out_be32(ap->ioaddr.device_addr, tmp); - ata_sff_pause(ap); -} - -/** - * scc_set_devctl - Write device control reg - * @ap: port where the device is - * @ctl: value to write - */ - -static void scc_set_devctl(struct ata_port *ap, u8 ctl) -{ - out_be32(ap->ioaddr.ctl_addr, ctl); -} - -/** - * scc_bmdma_setup - Set up PCI IDE BMDMA transaction - * @qc: Info associated with this ATA transaction. - * - * Note: Original code is ata_bmdma_setup(). - */ - -static void scc_bmdma_setup (struct ata_queued_cmd *qc) -{ - struct ata_port *ap = qc->ap; - unsigned int rw = (qc->tf.flags & ATA_TFLAG_WRITE); - u8 dmactl; - void __iomem *mmio = ap->ioaddr.bmdma_addr; - - /* load PRD table addr */ - out_be32(mmio + SCC_DMA_TABLE_OFS, ap->bmdma_prd_dma); - - /* specify data direction, triple-check start bit is clear */ - dmactl = in_be32(mmio + SCC_DMA_CMD); - dmactl &= ~(ATA_DMA_WR | ATA_DMA_START); - if (!rw) - dmactl |= ATA_DMA_WR; - out_be32(mmio + SCC_DMA_CMD, dmactl); - - /* issue r/w command */ - ap->ops->sff_exec_command(ap, &qc->tf); -} - -/** - * scc_bmdma_start - Start a PCI IDE BMDMA transaction - * @qc: Info associated with this ATA transaction. - * - * Note: Original code is ata_bmdma_start(). - */ - -static void scc_bmdma_start (struct ata_queued_cmd *qc) -{ - struct ata_port *ap = qc->ap; - u8 dmactl; - void __iomem *mmio = ap->ioaddr.bmdma_addr; - - /* start host DMA transaction */ - dmactl = in_be32(mmio + SCC_DMA_CMD); - out_be32(mmio + SCC_DMA_CMD, dmactl | ATA_DMA_START); -} - -/** - * scc_devchk - PATA device presence detection - * @ap: ATA channel to examine - * @device: Device to examine (starting at zero) - * - * Note: Original code is ata_devchk(). - */ - -static unsigned int scc_devchk (struct ata_port *ap, - unsigned int device) -{ - struct ata_ioports *ioaddr = &ap->ioaddr; - u8 nsect, lbal; - - ap->ops->sff_dev_select(ap, device); - - out_be32(ioaddr->nsect_addr, 0x55); - out_be32(ioaddr->lbal_addr, 0xaa); - - out_be32(ioaddr->nsect_addr, 0xaa); - out_be32(ioaddr->lbal_addr, 0x55); - - out_be32(ioaddr->nsect_addr, 0x55); - out_be32(ioaddr->lbal_addr, 0xaa); - - nsect = in_be32(ioaddr->nsect_addr); - lbal = in_be32(ioaddr->lbal_addr); - - if ((nsect == 0x55) && (lbal == 0xaa)) - return 1; /* we found a device */ - - return 0; /* nothing found */ -} - -/** - * scc_wait_after_reset - wait for devices to become ready after reset - * - * Note: Original code is ata_sff_wait_after_reset - */ - -static int scc_wait_after_reset(struct ata_link *link, unsigned int devmask, - unsigned long deadline) -{ - struct ata_port *ap = link->ap; - struct ata_ioports *ioaddr = &ap->ioaddr; - unsigned int dev0 = devmask & (1 << 0); - unsigned int dev1 = devmask & (1 << 1); - int rc, ret = 0; - - /* Spec mandates ">= 2ms" before checking status. We wait - * 150ms, because that was the magic delay used for ATAPI - * devices in Hale Landis's ATADRVR, for the period of time - * between when the ATA command register is written, and then - * status is checked. Because waiting for "a while" before - * checking status is fine, post SRST, we perform this magic - * delay here as well. - * - * Old drivers/ide uses the 2mS rule and then waits for ready. - */ - ata_msleep(ap, 150); - - /* always check readiness of the master device */ - rc = ata_sff_wait_ready(link, deadline); - /* -ENODEV means the odd clown forgot the D7 pulldown resistor - * and TF status is 0xff, bail out on it too. - */ - if (rc) - return rc; - - /* if device 1 was found in ata_devchk, wait for register - * access briefly, then wait for BSY to clear. - */ - if (dev1) { - int i; - - ap->ops->sff_dev_select(ap, 1); - - /* Wait for register access. Some ATAPI devices fail - * to set nsect/lbal after reset, so don't waste too - * much time on it. We're gonna wait for !BSY anyway. - */ - for (i = 0; i < 2; i++) { - u8 nsect, lbal; - - nsect = in_be32(ioaddr->nsect_addr); - lbal = in_be32(ioaddr->lbal_addr); - if ((nsect == 1) && (lbal == 1)) - break; - ata_msleep(ap, 50); /* give drive a breather */ - } - - rc = ata_sff_wait_ready(link, deadline); - if (rc) { - if (rc != -ENODEV) - return rc; - ret = rc; - } - } - - /* is all this really necessary? */ - ap->ops->sff_dev_select(ap, 0); - if (dev1) - ap->ops->sff_dev_select(ap, 1); - if (dev0) - ap->ops->sff_dev_select(ap, 0); - - return ret; -} - -/** - * scc_bus_softreset - PATA device software reset - * - * Note: Original code is ata_bus_softreset(). - */ - -static int scc_bus_softreset(struct ata_port *ap, unsigned int devmask, - unsigned long deadline) -{ - struct ata_ioports *ioaddr = &ap->ioaddr; - - DPRINTK("ata%u: bus reset via SRST\n", ap->print_id); - - /* software reset. causes dev0 to be selected */ - out_be32(ioaddr->ctl_addr, ap->ctl); - udelay(20); - out_be32(ioaddr->ctl_addr, ap->ctl | ATA_SRST); - udelay(20); - out_be32(ioaddr->ctl_addr, ap->ctl); - - return scc_wait_after_reset(&ap->link, devmask, deadline); -} - -/** - * scc_softreset - reset host port via ATA SRST - * @ap: port to reset - * @classes: resulting classes of attached devices - * @deadline: deadline jiffies for the operation - * - * Note: Original code is ata_sff_softreset(). - */ - -static int scc_softreset(struct ata_link *link, unsigned int *classes, - unsigned long deadline) -{ - struct ata_port *ap = link->ap; - unsigned int slave_possible = ap->flags & ATA_FLAG_SLAVE_POSS; - unsigned int devmask = 0; - int rc; - u8 err; - - DPRINTK("ENTER\n"); - - /* determine if device 0/1 are present */ - if (scc_devchk(ap, 0)) - devmask |= (1 << 0); - if (slave_possible && scc_devchk(ap, 1)) - devmask |= (1 << 1); - - /* select device 0 again */ - ap->ops->sff_dev_select(ap, 0); - - /* issue bus reset */ - DPRINTK("about to softreset, devmask=%x\n", devmask); - rc = scc_bus_softreset(ap, devmask, deadline); - if (rc) { - ata_port_err(ap, "SRST failed (err_mask=0x%x)\n", rc); - return -EIO; - } - - /* determine by signature whether we have ATA or ATAPI devices */ - classes[0] = ata_sff_dev_classify(&ap->link.device[0], - devmask & (1 << 0), &err); - if (slave_possible && err != 0x81) - classes[1] = ata_sff_dev_classify(&ap->link.device[1], - devmask & (1 << 1), &err); - - DPRINTK("EXIT, classes[0]=%u [1]=%u\n", classes[0], classes[1]); - return 0; -} - -/** - * scc_bmdma_stop - Stop PCI IDE BMDMA transfer - * @qc: Command we are ending DMA for - */ - -static void scc_bmdma_stop (struct ata_queued_cmd *qc) -{ - struct ata_port *ap = qc->ap; - void __iomem *ctrl_base = ap->host->iomap[SCC_CTRL_BAR]; - void __iomem *bmid_base = ap->host->iomap[SCC_BMID_BAR]; - u32 reg; - - while (1) { - reg = in_be32(bmid_base + SCC_DMA_INTST); - - if (reg & INTSTS_SERROR) { - printk(KERN_WARNING "%s: SERROR\n", DRV_NAME); - out_be32(bmid_base + SCC_DMA_INTST, INTSTS_SERROR|INTSTS_BMSINT); - out_be32(bmid_base + SCC_DMA_CMD, - in_be32(bmid_base + SCC_DMA_CMD) & ~ATA_DMA_START); - continue; - } - - if (reg & INTSTS_PRERR) { - u32 maea0, maec0; - maea0 = in_be32(ctrl_base + SCC_CTL_MAEA0); - maec0 = in_be32(ctrl_base + SCC_CTL_MAEC0); - printk(KERN_WARNING "%s: PRERR [addr:%x cmd:%x]\n", DRV_NAME, maea0, maec0); - out_be32(bmid_base + SCC_DMA_INTST, INTSTS_PRERR|INTSTS_BMSINT); - out_be32(bmid_base + SCC_DMA_CMD, - in_be32(bmid_base + SCC_DMA_CMD) & ~ATA_DMA_START); - continue; - } - - if (reg & INTSTS_RERR) { - printk(KERN_WARNING "%s: Response Error\n", DRV_NAME); - out_be32(bmid_base + SCC_DMA_INTST, INTSTS_RERR|INTSTS_BMSINT); - out_be32(bmid_base + SCC_DMA_CMD, - in_be32(bmid_base + SCC_DMA_CMD) & ~ATA_DMA_START); - continue; - } - - if (reg & INTSTS_ICERR) { - out_be32(bmid_base + SCC_DMA_CMD, - in_be32(bmid_base + SCC_DMA_CMD) & ~ATA_DMA_START); - printk(KERN_WARNING "%s: Illegal Configuration\n", DRV_NAME); - out_be32(bmid_base + SCC_DMA_INTST, INTSTS_ICERR|INTSTS_BMSINT); - continue; - } - - if (reg & INTSTS_BMSINT) { - unsigned int classes; - unsigned long deadline = ata_deadline(jiffies, ATA_TMOUT_BOOT); - printk(KERN_WARNING "%s: Internal Bus Error\n", DRV_NAME); - out_be32(bmid_base + SCC_DMA_INTST, INTSTS_BMSINT); - /* TBD: SW reset */ - scc_softreset(&ap->link, &classes, deadline); - continue; - } - - if (reg & INTSTS_BMHE) { - out_be32(bmid_base + SCC_DMA_INTST, INTSTS_BMHE); - continue; - } - - if (reg & INTSTS_ACTEINT) { - out_be32(bmid_base + SCC_DMA_INTST, INTSTS_ACTEINT); - continue; - } - - if (reg & INTSTS_IOIRQS) { - out_be32(bmid_base + SCC_DMA_INTST, INTSTS_IOIRQS); - continue; - } - break; - } - - /* clear start/stop bit */ - out_be32(bmid_base + SCC_DMA_CMD, - in_be32(bmid_base + SCC_DMA_CMD) & ~ATA_DMA_START); - - /* one-PIO-cycle guaranteed wait, per spec, for HDMA1:0 transition */ - ata_sff_dma_pause(ap); /* dummy read */ -} - -/** - * scc_bmdma_status - Read PCI IDE BMDMA status - * @ap: Port associated with this ATA transaction. - */ - -static u8 scc_bmdma_status (struct ata_port *ap) -{ - void __iomem *mmio = ap->ioaddr.bmdma_addr; - u8 host_stat = in_be32(mmio + SCC_DMA_STATUS); - u32 int_status = in_be32(mmio + SCC_DMA_INTST); - struct ata_queued_cmd *qc = ata_qc_from_tag(ap, ap->link.active_tag); - static int retry = 0; - - /* return if IOS_SS is cleared */ - if (!(in_be32(mmio + SCC_DMA_CMD) & ATA_DMA_START)) - return host_stat; - - /* errata A252,A308 workaround: Step4 */ - if ((scc_check_altstatus(ap) & ATA_ERR) - && (int_status & INTSTS_INTRQ)) - return (host_stat | ATA_DMA_INTR); - - /* errata A308 workaround Step5 */ - if (int_status & INTSTS_IOIRQS) { - host_stat |= ATA_DMA_INTR; - - /* We don't check ATAPI DMA because it is limited to UDMA4 */ - if ((qc->tf.protocol == ATA_PROT_DMA && - qc->dev->xfer_mode > XFER_UDMA_4)) { - if (!(int_status & INTSTS_ACTEINT)) { - printk(KERN_WARNING "ata%u: operation failed (transfer data loss)\n", - ap->print_id); - host_stat |= ATA_DMA_ERR; - if (retry++) - ap->udma_mask &= ~(1 << qc->dev->xfer_mode); - } else - retry = 0; - } - } - - return host_stat; -} - -/** - * scc_data_xfer - Transfer data by PIO - * @dev: device for this I/O - * @buf: data buffer - * @buflen: buffer length - * @rw: read/write - * - * Note: Original code is ata_sff_data_xfer(). - */ - -static unsigned int scc_data_xfer (struct ata_device *dev, unsigned char *buf, - unsigned int buflen, int rw) -{ - struct ata_port *ap = dev->link->ap; - unsigned int words = buflen >> 1; - unsigned int i; - __le16 *buf16 = (__le16 *) buf; - void __iomem *mmio = ap->ioaddr.data_addr; - - /* Transfer multiple of 2 bytes */ - if (rw == READ) - for (i = 0; i < words; i++) - buf16[i] = cpu_to_le16(in_be32(mmio)); - else - for (i = 0; i < words; i++) - out_be32(mmio, le16_to_cpu(buf16[i])); - - /* Transfer trailing 1 byte, if any. */ - if (unlikely(buflen & 0x01)) { - __le16 align_buf[1] = { 0 }; - unsigned char *trailing_buf = buf + buflen - 1; - - if (rw == READ) { - align_buf[0] = cpu_to_le16(in_be32(mmio)); - memcpy(trailing_buf, align_buf, 1); - } else { - memcpy(align_buf, trailing_buf, 1); - out_be32(mmio, le16_to_cpu(align_buf[0])); - } - words++; - } - - return words << 1; -} - -/** - * scc_postreset - standard postreset callback - * @ap: the target ata_port - * @classes: classes of attached devices - * - * Note: Original code is ata_sff_postreset(). - */ - -static void scc_postreset(struct ata_link *link, unsigned int *classes) -{ - struct ata_port *ap = link->ap; - - DPRINTK("ENTER\n"); - - /* is double-select really necessary? */ - if (classes[0] != ATA_DEV_NONE) - ap->ops->sff_dev_select(ap, 1); - if (classes[1] != ATA_DEV_NONE) - ap->ops->sff_dev_select(ap, 0); - - /* bail out if no device is present */ - if (classes[0] == ATA_DEV_NONE && classes[1] == ATA_DEV_NONE) { - DPRINTK("EXIT, no device\n"); - return; - } - - /* set up device control */ - out_be32(ap->ioaddr.ctl_addr, ap->ctl); - - DPRINTK("EXIT\n"); -} - -/** - * scc_irq_clear - Clear PCI IDE BMDMA interrupt. - * @ap: Port associated with this ATA transaction. - * - * Note: Original code is ata_bmdma_irq_clear(). - */ - -static void scc_irq_clear (struct ata_port *ap) -{ - void __iomem *mmio = ap->ioaddr.bmdma_addr; - - if (!mmio) - return; - - out_be32(mmio + SCC_DMA_STATUS, in_be32(mmio + SCC_DMA_STATUS)); -} - -/** - * scc_port_start - Set port up for dma. - * @ap: Port to initialize - * - * Allocate space for PRD table using ata_bmdma_port_start(). - * Set PRD table address for PTERADD. (PRD Transfer End Read) - */ - -static int scc_port_start (struct ata_port *ap) -{ - void __iomem *mmio = ap->ioaddr.bmdma_addr; - int rc; - - rc = ata_bmdma_port_start(ap); - if (rc) - return rc; - - out_be32(mmio + SCC_DMA_PTERADD, ap->bmdma_prd_dma); - return 0; -} - -/** - * scc_port_stop - Undo scc_port_start() - * @ap: Port to shut down - * - * Reset PTERADD. - */ - -static void scc_port_stop (struct ata_port *ap) -{ - void __iomem *mmio = ap->ioaddr.bmdma_addr; - - out_be32(mmio + SCC_DMA_PTERADD, 0); -} - -static struct scsi_host_template scc_sht = { - ATA_BMDMA_SHT(DRV_NAME), -}; - -static struct ata_port_operations scc_pata_ops = { - .inherits = &ata_bmdma_port_ops, - - .set_piomode = scc_set_piomode, - .set_dmamode = scc_set_dmamode, - .mode_filter = scc_mode_filter, - - .sff_tf_load = scc_tf_load, - .sff_tf_read = scc_tf_read, - .sff_exec_command = scc_exec_command, - .sff_check_status = scc_check_status, - .sff_check_altstatus = scc_check_altstatus, - .sff_dev_select = scc_dev_select, - .sff_set_devctl = scc_set_devctl, - - .bmdma_setup = scc_bmdma_setup, - .bmdma_start = scc_bmdma_start, - .bmdma_stop = scc_bmdma_stop, - .bmdma_status = scc_bmdma_status, - .sff_data_xfer = scc_data_xfer, - - .cable_detect = ata_cable_80wire, - .softreset = scc_softreset, - .postreset = scc_postreset, - - .sff_irq_clear = scc_irq_clear, - - .port_start = scc_port_start, - .port_stop = scc_port_stop, -}; - -static struct ata_port_info scc_port_info[] = { - { - .flags = ATA_FLAG_SLAVE_POSS, - .pio_mask = ATA_PIO4, - /* No MWDMA */ - .udma_mask = ATA_UDMA6, - .port_ops = &scc_pata_ops, - }, -}; - -/** - * scc_reset_controller - initialize SCC PATA controller. - */ - -static int scc_reset_controller(struct ata_host *host) -{ - void __iomem *ctrl_base = host->iomap[SCC_CTRL_BAR]; - void __iomem *bmid_base = host->iomap[SCC_BMID_BAR]; - void __iomem *cckctrl_port = ctrl_base + SCC_CTL_CCKCTRL; - void __iomem *mode_port = ctrl_base + SCC_CTL_MODEREG; - void __iomem *ecmode_port = ctrl_base + SCC_CTL_ECMODE; - void __iomem *intmask_port = bmid_base + SCC_DMA_INTMASK; - void __iomem *dmastatus_port = bmid_base + SCC_DMA_STATUS; - u32 reg = 0; - - out_be32(cckctrl_port, reg); - reg |= CCKCTRL_ATACLKOEN; - out_be32(cckctrl_port, reg); - reg |= CCKCTRL_LCLKEN | CCKCTRL_OCLKEN; - out_be32(cckctrl_port, reg); - reg |= CCKCTRL_CRST; - out_be32(cckctrl_port, reg); - - for (;;) { - reg = in_be32(cckctrl_port); - if (reg & CCKCTRL_CRST) - break; - udelay(5000); - } - - reg |= CCKCTRL_ATARESET; - out_be32(cckctrl_port, reg); - out_be32(ecmode_port, ECMODE_VALUE); - out_be32(mode_port, MODE_JCUSFEN); - out_be32(intmask_port, INTMASK_MSK); - - if (in_be32(dmastatus_port) & QCHSD_STPDIAG) { - printk(KERN_WARNING "%s: failed to detect 80c cable. (PDIAG# is high)\n", DRV_NAME); - return -EIO; - } - - return 0; -} - -/** - * scc_setup_ports - initialize ioaddr with SCC PATA port offsets. - * @ioaddr: IO address structure to be initialized - * @base: base address of BMID region - */ - -static void scc_setup_ports (struct ata_ioports *ioaddr, void __iomem *base) -{ - ioaddr->cmd_addr = base + SCC_REG_CMD_ADDR; - ioaddr->altstatus_addr = ioaddr->cmd_addr + SCC_REG_ALTSTATUS; - ioaddr->ctl_addr = ioaddr->cmd_addr + SCC_REG_ALTSTATUS; - ioaddr->bmdma_addr = base; - ioaddr->data_addr = ioaddr->cmd_addr + SCC_REG_DATA; - ioaddr->error_addr = ioaddr->cmd_addr + SCC_REG_ERR; - ioaddr->feature_addr = ioaddr->cmd_addr + SCC_REG_FEATURE; - ioaddr->nsect_addr = ioaddr->cmd_addr + SCC_REG_NSECT; - ioaddr->lbal_addr = ioaddr->cmd_addr + SCC_REG_LBAL; - ioaddr->lbam_addr = ioaddr->cmd_addr + SCC_REG_LBAM; - ioaddr->lbah_addr = ioaddr->cmd_addr + SCC_REG_LBAH; - ioaddr->device_addr = ioaddr->cmd_addr + SCC_REG_DEVICE; - ioaddr->status_addr = ioaddr->cmd_addr + SCC_REG_STATUS; - ioaddr->command_addr = ioaddr->cmd_addr + SCC_REG_CMD; -} - -static int scc_host_init(struct ata_host *host) -{ - struct pci_dev *pdev = to_pci_dev(host->dev); - int rc; - - rc = scc_reset_controller(host); - if (rc) - return rc; - - rc = dma_set_mask(&pdev->dev, ATA_DMA_MASK); - if (rc) - return rc; - rc = dma_set_coherent_mask(&pdev->dev, ATA_DMA_MASK); - if (rc) - return rc; - - scc_setup_ports(&host->ports[0]->ioaddr, host->iomap[SCC_BMID_BAR]); - - pci_set_master(pdev); - - return 0; -} - -/** - * scc_init_one - Register SCC PATA device with kernel services - * @pdev: PCI device to register - * @ent: Entry in scc_pci_tbl matching with @pdev - * - * LOCKING: - * Inherited from PCI layer (may sleep). - * - * RETURNS: - * Zero on success, or -ERRNO value. - */ - -static int scc_init_one (struct pci_dev *pdev, const struct pci_device_id *ent) -{ - unsigned int board_idx = (unsigned int) ent->driver_data; - const struct ata_port_info *ppi[] = { &scc_port_info[board_idx], NULL }; - struct ata_host *host; - int rc; - - ata_print_version_once(&pdev->dev, DRV_VERSION); - - host = ata_host_alloc_pinfo(&pdev->dev, ppi, 1); - if (!host) - return -ENOMEM; - - rc = pcim_enable_device(pdev); - if (rc) - return rc; - - rc = pcim_iomap_regions(pdev, (1 << SCC_CTRL_BAR) | (1 << SCC_BMID_BAR), DRV_NAME); - if (rc == -EBUSY) - pcim_pin_device(pdev); - if (rc) - return rc; - host->iomap = pcim_iomap_table(pdev); - - ata_port_pbar_desc(host->ports[0], SCC_CTRL_BAR, -1, "ctrl"); - ata_port_pbar_desc(host->ports[0], SCC_BMID_BAR, -1, "bmid"); - - rc = scc_host_init(host); - if (rc) - return rc; - - return ata_host_activate(host, pdev->irq, ata_bmdma_interrupt, - IRQF_SHARED, &scc_sht); -} - -static struct pci_driver scc_pci_driver = { - .name = DRV_NAME, - .id_table = scc_pci_tbl, - .probe = scc_init_one, - .remove = ata_pci_remove_one, -#ifdef CONFIG_PM_SLEEP - .suspend = ata_pci_device_suspend, - .resume = ata_pci_device_resume, -#endif -}; - -module_pci_driver(scc_pci_driver); - -MODULE_AUTHOR("Toshiba corp"); -MODULE_DESCRIPTION("SCSI low-level driver for Toshiba SCC PATA controller"); -MODULE_LICENSE("GPL"); -MODULE_DEVICE_TABLE(pci, scc_pci_tbl); -MODULE_VERSION(DRV_VERSION); diff --git a/drivers/block/loop.c b/drivers/block/loop.c index ae3fcb4199e9..d7173cb1ea76 100644 --- a/drivers/block/loop.c +++ b/drivers/block/loop.c @@ -1620,8 +1620,8 @@ out: static void loop_remove(struct loop_device *lo) { - del_gendisk(lo->lo_disk); blk_cleanup_queue(lo->lo_queue); + del_gendisk(lo->lo_disk); blk_mq_free_tag_set(&lo->tag_set); put_disk(lo->lo_disk); kfree(lo); diff --git a/drivers/block/nvme-scsi.c b/drivers/block/nvme-scsi.c index 6b736b00f63e..88f13c525712 100644 --- a/drivers/block/nvme-scsi.c +++ b/drivers/block/nvme-scsi.c @@ -944,7 +944,8 @@ static int nvme_trans_ext_inq_page(struct nvme_ns *ns, struct sg_io_hdr *hdr, static int nvme_trans_bdev_limits_page(struct nvme_ns *ns, struct sg_io_hdr *hdr, u8 *inq_response, int alloc_len) { - __be32 max_sectors = cpu_to_be32(queue_max_hw_sectors(ns->queue)); + __be32 max_sectors = cpu_to_be32( + nvme_block_nr(ns, queue_max_hw_sectors(ns->queue))); __be32 max_discard = cpu_to_be32(ns->queue->limits.max_discard_sectors); __be32 discard_desc_count = cpu_to_be32(0x100); diff --git a/drivers/block/xen-blkback/blkback.c b/drivers/block/xen-blkback/blkback.c index bd2b3bbbb22c..713fc9ff1149 100644 --- a/drivers/block/xen-blkback/blkback.c +++ b/drivers/block/xen-blkback/blkback.c @@ -265,17 +265,6 @@ static void put_persistent_gnt(struct xen_blkif *blkif, atomic_dec(&blkif->persistent_gnt_in_use); } -static void free_persistent_gnts_unmap_callback(int result, - struct gntab_unmap_queue_data *data) -{ - struct completion *c = data->data; - - /* BUG_ON used to reproduce existing behaviour, - but is this the best way to deal with this? */ - BUG_ON(result); - complete(c); -} - static void free_persistent_gnts(struct xen_blkif *blkif, struct rb_root *root, unsigned int num) { @@ -285,12 +274,7 @@ static void free_persistent_gnts(struct xen_blkif *blkif, struct rb_root *root, struct rb_node *n; int segs_to_unmap = 0; struct gntab_unmap_queue_data unmap_data; - struct completion unmap_completion; - init_completion(&unmap_completion); - - unmap_data.data = &unmap_completion; - unmap_data.done = &free_persistent_gnts_unmap_callback; unmap_data.pages = pages; unmap_data.unmap_ops = unmap; unmap_data.kunmap_ops = NULL; @@ -310,8 +294,7 @@ static void free_persistent_gnts(struct xen_blkif *blkif, struct rb_root *root, !rb_next(&persistent_gnt->node)) { unmap_data.count = segs_to_unmap; - gnttab_unmap_refs_async(&unmap_data); - wait_for_completion(&unmap_completion); + BUG_ON(gnttab_unmap_refs_sync(&unmap_data)); put_free_pages(blkif, pages, segs_to_unmap); segs_to_unmap = 0; @@ -329,8 +312,13 @@ void xen_blkbk_unmap_purged_grants(struct work_struct *work) struct gnttab_unmap_grant_ref unmap[BLKIF_MAX_SEGMENTS_PER_REQUEST]; struct page *pages[BLKIF_MAX_SEGMENTS_PER_REQUEST]; struct persistent_gnt *persistent_gnt; - int ret, segs_to_unmap = 0; + int segs_to_unmap = 0; struct xen_blkif *blkif = container_of(work, typeof(*blkif), persistent_purge_work); + struct gntab_unmap_queue_data unmap_data; + + unmap_data.pages = pages; + unmap_data.unmap_ops = unmap; + unmap_data.kunmap_ops = NULL; while(!list_empty(&blkif->persistent_purge_list)) { persistent_gnt = list_first_entry(&blkif->persistent_purge_list, @@ -346,17 +334,16 @@ void xen_blkbk_unmap_purged_grants(struct work_struct *work) pages[segs_to_unmap] = persistent_gnt->page; if (++segs_to_unmap == BLKIF_MAX_SEGMENTS_PER_REQUEST) { - ret = gnttab_unmap_refs(unmap, NULL, pages, - segs_to_unmap); - BUG_ON(ret); + unmap_data.count = segs_to_unmap; + BUG_ON(gnttab_unmap_refs_sync(&unmap_data)); put_free_pages(blkif, pages, segs_to_unmap); segs_to_unmap = 0; } kfree(persistent_gnt); } if (segs_to_unmap > 0) { - ret = gnttab_unmap_refs(unmap, NULL, pages, segs_to_unmap); - BUG_ON(ret); + unmap_data.count = segs_to_unmap; + BUG_ON(gnttab_unmap_refs_sync(&unmap_data)); put_free_pages(blkif, pages, segs_to_unmap); } } diff --git a/drivers/block/zram/zram_drv.c b/drivers/block/zram/zram_drv.c index c94386aa563d..8dcbced0eafd 100644 --- a/drivers/block/zram/zram_drv.c +++ b/drivers/block/zram/zram_drv.c @@ -74,6 +74,27 @@ static inline struct zram *dev_to_zram(struct device *dev) return (struct zram *)dev_to_disk(dev)->private_data; } +static ssize_t compact_store(struct device *dev, + struct device_attribute *attr, const char *buf, size_t len) +{ + unsigned long nr_migrated; + struct zram *zram = dev_to_zram(dev); + struct zram_meta *meta; + + down_read(&zram->init_lock); + if (!init_done(zram)) { + up_read(&zram->init_lock); + return -EINVAL; + } + + meta = zram->meta; + nr_migrated = zs_compact(meta->mem_pool); + atomic64_add(nr_migrated, &zram->stats.num_migrated); + up_read(&zram->init_lock); + + return len; +} + static ssize_t disksize_show(struct device *dev, struct device_attribute *attr, char *buf) { @@ -1038,6 +1059,7 @@ static const struct block_device_operations zram_devops = { .owner = THIS_MODULE }; +static DEVICE_ATTR_WO(compact); static DEVICE_ATTR_RW(disksize); static DEVICE_ATTR_RO(initstate); static DEVICE_ATTR_WO(reset); @@ -1114,6 +1136,7 @@ static struct attribute *zram_disk_attrs[] = { &dev_attr_num_writes.attr, &dev_attr_failed_reads.attr, &dev_attr_failed_writes.attr, + &dev_attr_compact.attr, &dev_attr_invalid_io.attr, &dev_attr_notify_free.attr, &dev_attr_zero_pages.attr, diff --git a/drivers/bus/arm-cci.c b/drivers/bus/arm-cci.c index b854125e4831..5340604b23a4 100644 --- a/drivers/bus/arm-cci.c +++ b/drivers/bus/arm-cci.c @@ -660,7 +660,7 @@ validate_group(struct perf_event *event) * Initialise the fake PMU. We only need to populate the * used_mask for the purposes of validation. */ - .used_mask = CPU_BITS_NONE, + .used_mask = { 0 }, }; if (!validate_event(event->pmu, &fake_pmu, leader)) diff --git a/drivers/bus/omap_l3_noc.c b/drivers/bus/omap_l3_noc.c index 11f7982cbdb3..ebee57d715d2 100644 --- a/drivers/bus/omap_l3_noc.c +++ b/drivers/bus/omap_l3_noc.c @@ -1,7 +1,7 @@ /* * OMAP L3 Interconnect error handling driver * - * Copyright (C) 2011-2014 Texas Instruments Incorporated - http://www.ti.com/ + * Copyright (C) 2011-2015 Texas Instruments Incorporated - http://www.ti.com/ * Santosh Shilimkar <santosh.shilimkar@ti.com> * Sricharan <r.sricharan@ti.com> * @@ -233,7 +233,8 @@ static irqreturn_t l3_interrupt_handler(int irq, void *_l3) } static const struct of_device_id l3_noc_match[] = { - {.compatible = "ti,omap4-l3-noc", .data = &omap_l3_data}, + {.compatible = "ti,omap4-l3-noc", .data = &omap4_l3_data}, + {.compatible = "ti,omap5-l3-noc", .data = &omap5_l3_data}, {.compatible = "ti,dra7-l3-noc", .data = &dra_l3_data}, {.compatible = "ti,am4372-l3-noc", .data = &am4372_l3_data}, {}, diff --git a/drivers/bus/omap_l3_noc.h b/drivers/bus/omap_l3_noc.h index 95254585db86..73431f81da28 100644 --- a/drivers/bus/omap_l3_noc.h +++ b/drivers/bus/omap_l3_noc.h @@ -1,7 +1,7 @@ /* * OMAP L3 Interconnect error handling driver header * - * Copyright (C) 2011-2014 Texas Instruments Incorporated - http://www.ti.com/ + * Copyright (C) 2011-2015 Texas Instruments Incorporated - http://www.ti.com/ * Santosh Shilimkar <santosh.shilimkar@ti.com> * sricharan <r.sricharan@ti.com> * @@ -175,16 +175,14 @@ static struct l3_flagmux_data omap_l3_flagmux_clk2 = { }; -static struct l3_target_data omap_l3_target_data_clk3[] = { - {0x0100, "EMUSS",}, - {0x0300, "DEBUG SOURCE",}, - {0x0, "HOST CLK3",}, +static struct l3_target_data omap4_l3_target_data_clk3[] = { + {0x0100, "DEBUGSS",}, }; -static struct l3_flagmux_data omap_l3_flagmux_clk3 = { +static struct l3_flagmux_data omap4_l3_flagmux_clk3 = { .offset = 0x0200, - .l3_targ = omap_l3_target_data_clk3, - .num_targ_data = ARRAY_SIZE(omap_l3_target_data_clk3), + .l3_targ = omap4_l3_target_data_clk3, + .num_targ_data = ARRAY_SIZE(omap4_l3_target_data_clk3), }; static struct l3_masters_data omap_l3_masters[] = { @@ -215,21 +213,49 @@ static struct l3_masters_data omap_l3_masters[] = { { 0x32, "USBHOSTFS"} }; -static struct l3_flagmux_data *omap_l3_flagmux[] = { +static struct l3_flagmux_data *omap4_l3_flagmux[] = { &omap_l3_flagmux_clk1, &omap_l3_flagmux_clk2, - &omap_l3_flagmux_clk3, + &omap4_l3_flagmux_clk3, }; -static const struct omap_l3 omap_l3_data = { - .l3_flagmux = omap_l3_flagmux, - .num_modules = ARRAY_SIZE(omap_l3_flagmux), +static const struct omap_l3 omap4_l3_data = { + .l3_flagmux = omap4_l3_flagmux, + .num_modules = ARRAY_SIZE(omap4_l3_flagmux), .l3_masters = omap_l3_masters, .num_masters = ARRAY_SIZE(omap_l3_masters), /* The 6 MSBs of register field used to distinguish initiator */ .mst_addr_mask = 0xFC, }; +/* OMAP5 data */ +static struct l3_target_data omap5_l3_target_data_clk3[] = { + {0x0100, "L3INSTR",}, + {0x0300, "DEBUGSS",}, + {0x0, "HOSTCLK3",}, +}; + +static struct l3_flagmux_data omap5_l3_flagmux_clk3 = { + .offset = 0x0200, + .l3_targ = omap5_l3_target_data_clk3, + .num_targ_data = ARRAY_SIZE(omap5_l3_target_data_clk3), +}; + +static struct l3_flagmux_data *omap5_l3_flagmux[] = { + &omap_l3_flagmux_clk1, + &omap_l3_flagmux_clk2, + &omap5_l3_flagmux_clk3, +}; + +static const struct omap_l3 omap5_l3_data = { + .l3_flagmux = omap5_l3_flagmux, + .num_modules = ARRAY_SIZE(omap5_l3_flagmux), + .l3_masters = omap_l3_masters, + .num_masters = ARRAY_SIZE(omap_l3_masters), + /* The 6 MSBs of register field used to distinguish initiator */ + .mst_addr_mask = 0x7E0, +}; + /* DRA7 data */ static struct l3_target_data dra_l3_target_data_clk1[] = { {0x2a00, "AES1",}, @@ -274,7 +300,7 @@ static struct l3_flagmux_data dra_l3_flagmux_clk1 = { static struct l3_target_data dra_l3_target_data_clk2[] = { {0x0, "HOST CLK1",}, - {0x0, "HOST CLK2",}, + {0x800000, "HOST CLK2",}, {0xdead, L3_TARGET_NOT_SUPPORTED,}, {0x3400, "SHA2_2",}, {0x0900, "BB2D",}, diff --git a/drivers/char/hw_random/bcm63xx-rng.c b/drivers/char/hw_random/bcm63xx-rng.c index d1494ecd9e11..4b31f1387f37 100644 --- a/drivers/char/hw_random/bcm63xx-rng.c +++ b/drivers/char/hw_random/bcm63xx-rng.c @@ -57,7 +57,7 @@ static void bcm63xx_rng_cleanup(struct hwrng *rng) val &= ~RNG_EN; __raw_writel(val, priv->regs + RNG_CTRL); - clk_didsable_unprepare(prov->clk); + clk_disable_unprepare(priv->clk); } static int bcm63xx_rng_data_present(struct hwrng *rng, int wait) @@ -97,14 +97,14 @@ static int bcm63xx_rng_probe(struct platform_device *pdev) priv->rng.name = pdev->name; priv->rng.init = bcm63xx_rng_init; priv->rng.cleanup = bcm63xx_rng_cleanup; - prov->rng.data_present = bcm63xx_rng_data_present; + priv->rng.data_present = bcm63xx_rng_data_present; priv->rng.data_read = bcm63xx_rng_data_read; priv->clk = devm_clk_get(&pdev->dev, "ipsec"); if (IS_ERR(priv->clk)) { - error = PTR_ERR(priv->clk); - dev_err(&pdev->dev, "no clock for device: %d\n", error); - return error; + ret = PTR_ERR(priv->clk); + dev_err(&pdev->dev, "no clock for device: %d\n", ret); + return ret; } if (!devm_request_mem_region(&pdev->dev, r->start, @@ -120,11 +120,11 @@ static int bcm63xx_rng_probe(struct platform_device *pdev) return -ENOMEM; } - error = devm_hwrng_register(&pdev->dev, &priv->rng); - if (error) { + ret = devm_hwrng_register(&pdev->dev, &priv->rng); + if (ret) { dev_err(&pdev->dev, "failed to register rng device: %d\n", - error); - return error; + ret); + return ret; } dev_info(&pdev->dev, "registered RNG driver\n"); diff --git a/drivers/char/ipmi/ipmi_msghandler.c b/drivers/char/ipmi/ipmi_msghandler.c index 9bb592872532..bf75f6361773 100644 --- a/drivers/char/ipmi/ipmi_msghandler.c +++ b/drivers/char/ipmi/ipmi_msghandler.c @@ -2000,7 +2000,7 @@ static int smi_ipmb_proc_show(struct seq_file *m, void *v) seq_printf(m, " %x", intf->channels[i].address); seq_putc(m, '\n'); - return seq_has_overflowed(m); + return 0; } static int smi_ipmb_proc_open(struct inode *inode, struct file *file) @@ -2023,7 +2023,7 @@ static int smi_version_proc_show(struct seq_file *m, void *v) ipmi_version_major(&intf->bmc->id), ipmi_version_minor(&intf->bmc->id)); - return seq_has_overflowed(m); + return 0; } static int smi_version_proc_open(struct inode *inode, struct file *file) diff --git a/drivers/char/ipmi/ipmi_si_intf.c b/drivers/char/ipmi/ipmi_si_intf.c index 5e90a18afbaf..8a45e92ff60c 100644 --- a/drivers/char/ipmi/ipmi_si_intf.c +++ b/drivers/char/ipmi/ipmi_si_intf.c @@ -942,8 +942,7 @@ static void sender(void *send_info, * If we are running to completion, start it and run * transactions until everything is clear. */ - smi_info->curr_msg = msg; - smi_info->waiting_msg = NULL; + smi_info->waiting_msg = msg; /* * Run to completion means we are single-threaded, no @@ -2244,7 +2243,7 @@ static int ipmi_pnp_probe(struct pnp_dev *dev, acpi_handle handle; acpi_status status; unsigned long long tmp; - int rv; + int rv = -EINVAL; acpi_dev = pnp_acpi_device(dev); if (!acpi_dev) @@ -2262,8 +2261,10 @@ static int ipmi_pnp_probe(struct pnp_dev *dev, /* _IFT tells us the interface type: KCS, BT, etc */ status = acpi_evaluate_integer(handle, "_IFT", NULL, &tmp); - if (ACPI_FAILURE(status)) + if (ACPI_FAILURE(status)) { + dev_err(&dev->dev, "Could not find ACPI IPMI interface type\n"); goto err_free; + } switch (tmp) { case 1: @@ -2276,6 +2277,7 @@ static int ipmi_pnp_probe(struct pnp_dev *dev, info->si_type = SI_BT; break; case 4: /* SSIF, just ignore */ + rv = -ENODEV; goto err_free; default: dev_info(&dev->dev, "unknown IPMI type %lld\n", tmp); @@ -2336,7 +2338,7 @@ static int ipmi_pnp_probe(struct pnp_dev *dev, err_free: kfree(info); - return -EINVAL; + return rv; } static void ipmi_pnp_remove(struct pnp_dev *dev) @@ -3080,7 +3082,7 @@ static int smi_type_proc_show(struct seq_file *m, void *v) seq_printf(m, "%s\n", si_to_str[smi->si_type]); - return seq_has_overflowed(m); + return 0; } static int smi_type_proc_open(struct inode *inode, struct file *file) @@ -3153,7 +3155,7 @@ static int smi_params_proc_show(struct seq_file *m, void *v) smi->irq, smi->slave_addr); - return seq_has_overflowed(m); + return 0; } static int smi_params_proc_open(struct inode *inode, struct file *file) diff --git a/drivers/char/ipmi/ipmi_ssif.c b/drivers/char/ipmi/ipmi_ssif.c index f40e3bd2c69c..207689c444a8 100644 --- a/drivers/char/ipmi/ipmi_ssif.c +++ b/drivers/char/ipmi/ipmi_ssif.c @@ -31,7 +31,6 @@ * interface into the I2C driver, I believe. */ -#include <linux/version.h> #if defined(MODVERSIONS) #include <linux/modversions.h> #endif @@ -166,6 +165,9 @@ enum ssif_stat_indexes { /* Number of watchdog pretimeouts. */ SSIF_STAT_watchdog_pretimeouts, + /* Number of alers received. */ + SSIF_STAT_alerts, + /* Always add statistics before this value, it must be last. */ SSIF_NUM_STATS }; @@ -214,7 +216,16 @@ struct ssif_info { #define WDT_PRE_TIMEOUT_INT 0x08 unsigned char msg_flags; + u8 global_enables; bool has_event_buffer; + bool supports_alert; + + /* + * Used to tell what we should do with alerts. If we are + * waiting on a response, read the data immediately. + */ + bool got_alert; + bool waiting_alert; /* * If set to true, this will request events the next time the @@ -478,13 +489,13 @@ static int ipmi_ssif_thread(void *data) if (ssif_info->i2c_read_write == I2C_SMBUS_WRITE) { result = i2c_smbus_write_block_data( - ssif_info->client, SSIF_IPMI_REQUEST, + ssif_info->client, ssif_info->i2c_command, ssif_info->i2c_data[0], ssif_info->i2c_data + 1); ssif_info->done_handler(ssif_info, result, NULL, 0); } else { result = i2c_smbus_read_block_data( - ssif_info->client, SSIF_IPMI_RESPONSE, + ssif_info->client, ssif_info->i2c_command, ssif_info->i2c_data); if (result < 0) ssif_info->done_handler(ssif_info, result, @@ -518,15 +529,12 @@ static int ssif_i2c_send(struct ssif_info *ssif_info, static void msg_done_handler(struct ssif_info *ssif_info, int result, unsigned char *data, unsigned int len); -static void retry_timeout(unsigned long data) +static void start_get(struct ssif_info *ssif_info) { - struct ssif_info *ssif_info = (void *) data; int rv; - if (ssif_info->stopping) - return; - ssif_info->rtc_us_timer = 0; + ssif_info->multi_pos = 0; rv = ssif_i2c_send(ssif_info, msg_done_handler, I2C_SMBUS_READ, SSIF_IPMI_RESPONSE, @@ -540,6 +548,46 @@ static void retry_timeout(unsigned long data) } } +static void retry_timeout(unsigned long data) +{ + struct ssif_info *ssif_info = (void *) data; + unsigned long oflags, *flags; + bool waiting; + + if (ssif_info->stopping) + return; + + flags = ipmi_ssif_lock_cond(ssif_info, &oflags); + waiting = ssif_info->waiting_alert; + ssif_info->waiting_alert = false; + ipmi_ssif_unlock_cond(ssif_info, flags); + + if (waiting) + start_get(ssif_info); +} + + +static void ssif_alert(struct i2c_client *client, unsigned int data) +{ + struct ssif_info *ssif_info = i2c_get_clientdata(client); + unsigned long oflags, *flags; + bool do_get = false; + + ssif_inc_stat(ssif_info, alerts); + + flags = ipmi_ssif_lock_cond(ssif_info, &oflags); + if (ssif_info->waiting_alert) { + ssif_info->waiting_alert = false; + del_timer(&ssif_info->retry_timer); + do_get = true; + } else if (ssif_info->curr_msg) { + ssif_info->got_alert = true; + } + ipmi_ssif_unlock_cond(ssif_info, flags); + if (do_get) + start_get(ssif_info); +} + static int start_resend(struct ssif_info *ssif_info); static void msg_done_handler(struct ssif_info *ssif_info, int result, @@ -559,9 +607,12 @@ static void msg_done_handler(struct ssif_info *ssif_info, int result, if (ssif_info->retries_left > 0) { ssif_inc_stat(ssif_info, receive_retries); + flags = ipmi_ssif_lock_cond(ssif_info, &oflags); + ssif_info->waiting_alert = true; + ssif_info->rtc_us_timer = SSIF_MSG_USEC; mod_timer(&ssif_info->retry_timer, jiffies + SSIF_MSG_JIFFIES); - ssif_info->rtc_us_timer = SSIF_MSG_USEC; + ipmi_ssif_unlock_cond(ssif_info, flags); return; } @@ -581,9 +632,9 @@ static void msg_done_handler(struct ssif_info *ssif_info, int result, ssif_inc_stat(ssif_info, received_message_parts); /* Remove the multi-part read marker. */ - for (i = 0; i < (len-2); i++) - ssif_info->data[i] = data[i+2]; len -= 2; + for (i = 0; i < len; i++) + ssif_info->data[i] = data[i+2]; ssif_info->multi_len = len; ssif_info->multi_pos = 1; @@ -610,9 +661,9 @@ static void msg_done_handler(struct ssif_info *ssif_info, int result, goto continue_op; } - blocknum = data[ssif_info->multi_len]; + blocknum = data[0]; - if (ssif_info->multi_len+len-1 > IPMI_MAX_MSG_LENGTH) { + if (ssif_info->multi_len + len - 1 > IPMI_MAX_MSG_LENGTH) { /* Received message too big, abort the operation. */ result = -E2BIG; if (ssif_info->ssif_debug & SSIF_DEBUG_MSG) @@ -622,15 +673,15 @@ static void msg_done_handler(struct ssif_info *ssif_info, int result, } /* Remove the blocknum from the data. */ - for (i = 0; i < (len-1); i++) - ssif_info->data[i+ssif_info->multi_len] = data[i+1]; len--; + for (i = 0; i < len; i++) + ssif_info->data[i + ssif_info->multi_len] = data[i + 1]; ssif_info->multi_len += len; if (blocknum == 0xff) { /* End of read */ len = ssif_info->multi_len; data = ssif_info->data; - } else if ((blocknum+1) != ssif_info->multi_pos) { + } else if (blocknum + 1 != ssif_info->multi_pos) { /* * Out of sequence block, just abort. Block * numbers start at zero for the second block, @@ -650,7 +701,7 @@ static void msg_done_handler(struct ssif_info *ssif_info, int result, if (rv < 0) { if (ssif_info->ssif_debug & SSIF_DEBUG_MSG) pr_info(PFX - "Error from i2c_non_blocking_op(2)\n"); + "Error from ssif_i2c_send\n"); result = -EIO; } else @@ -830,7 +881,11 @@ static void msg_written_handler(struct ssif_info *ssif_info, int result, } if (ssif_info->multi_data) { - /* In the middle of a multi-data write. */ + /* + * In the middle of a multi-data write. See the comment + * in the SSIF_MULTI_n_PART case in the probe function + * for details on the intricacies of this. + */ int left; ssif_inc_stat(ssif_info, sent_messages_parts); @@ -864,15 +919,32 @@ static void msg_written_handler(struct ssif_info *ssif_info, int result, msg_done_handler(ssif_info, -EIO, NULL, 0); } } else { + unsigned long oflags, *flags; + bool got_alert; + ssif_inc_stat(ssif_info, sent_messages); ssif_inc_stat(ssif_info, sent_messages_parts); - /* Wait a jiffie then request the next message */ - ssif_info->retries_left = SSIF_RECV_RETRIES; - ssif_info->rtc_us_timer = SSIF_MSG_PART_USEC; - mod_timer(&ssif_info->retry_timer, - jiffies + SSIF_MSG_PART_JIFFIES); - return; + flags = ipmi_ssif_lock_cond(ssif_info, &oflags); + got_alert = ssif_info->got_alert; + if (got_alert) { + ssif_info->got_alert = false; + ssif_info->waiting_alert = false; + } + + if (got_alert) { + ipmi_ssif_unlock_cond(ssif_info, flags); + /* The alert already happened, try now. */ + retry_timeout((unsigned long) ssif_info); + } else { + /* Wait a jiffie then request the next message */ + ssif_info->waiting_alert = true; + ssif_info->retries_left = SSIF_RECV_RETRIES; + ssif_info->rtc_us_timer = SSIF_MSG_PART_USEC; + mod_timer(&ssif_info->retry_timer, + jiffies + SSIF_MSG_PART_JIFFIES); + ipmi_ssif_unlock_cond(ssif_info, flags); + } } } @@ -881,6 +953,8 @@ static int start_resend(struct ssif_info *ssif_info) int rv; int command; + ssif_info->got_alert = false; + if (ssif_info->data_len > 32) { command = SSIF_IPMI_MULTI_PART_REQUEST_START; ssif_info->multi_data = ssif_info->data; @@ -915,7 +989,7 @@ static int start_send(struct ssif_info *ssif_info, return -E2BIG; ssif_info->retries_left = SSIF_SEND_RETRIES; - memcpy(ssif_info->data+1, data, len); + memcpy(ssif_info->data + 1, data, len); ssif_info->data_len = len; return start_resend(ssif_info); } @@ -1200,7 +1274,7 @@ static int smi_type_proc_show(struct seq_file *m, void *v) { seq_puts(m, "ssif\n"); - return seq_has_overflowed(m); + return 0; } static int smi_type_proc_open(struct inode *inode, struct file *file) @@ -1243,6 +1317,8 @@ static int smi_stats_proc_show(struct seq_file *m, void *v) ssif_get_stat(ssif_info, events)); seq_printf(m, "watchdog_pretimeouts: %u\n", ssif_get_stat(ssif_info, watchdog_pretimeouts)); + seq_printf(m, "alerts: %u\n", + ssif_get_stat(ssif_info, alerts)); return 0; } @@ -1258,6 +1334,23 @@ static const struct file_operations smi_stats_proc_ops = { .release = single_release, }; +static int strcmp_nospace(char *s1, char *s2) +{ + while (*s1 && *s2) { + while (isspace(*s1)) + s1++; + while (isspace(*s2)) + s2++; + if (*s1 > *s2) + return 1; + if (*s1 < *s2) + return -1; + s1++; + s2++; + } + return 0; +} + static struct ssif_addr_info *ssif_info_find(unsigned short addr, char *adapter_name, bool match_null_name) @@ -1272,8 +1365,10 @@ restart: /* One is NULL and one is not */ continue; } - if (strcmp(info->adapter_name, adapter_name)) - /* Names to not match */ + if (adapter_name && + strcmp_nospace(info->adapter_name, + adapter_name)) + /* Names do not match */ continue; } found = info; @@ -1306,6 +1401,12 @@ static bool check_acpi(struct ssif_info *ssif_info, struct device *dev) return false; } +/* + * Global enables we care about. + */ +#define GLOBAL_ENABLES_MASK (IPMI_BMC_EVT_MSG_BUFF | IPMI_BMC_RCV_MSG_INTR | \ + IPMI_BMC_EVT_MSG_INTR) + static int ssif_probe(struct i2c_client *client, const struct i2c_device_id *id) { unsigned char msg[3]; @@ -1391,13 +1492,33 @@ static int ssif_probe(struct i2c_client *client, const struct i2c_device_id *id) break; case SSIF_MULTI_2_PART: - if (ssif_info->max_xmit_msg_size > 64) - ssif_info->max_xmit_msg_size = 64; + if (ssif_info->max_xmit_msg_size > 63) + ssif_info->max_xmit_msg_size = 63; if (ssif_info->max_recv_msg_size > 62) ssif_info->max_recv_msg_size = 62; break; case SSIF_MULTI_n_PART: + /* + * The specification is rather confusing at + * this point, but I think I understand what + * is meant. At least I have a workable + * solution. With multi-part messages, you + * cannot send a message that is a multiple of + * 32-bytes in length, because the start and + * middle messages are 32-bytes and the end + * message must be at least one byte. You + * can't fudge on an extra byte, that would + * screw up things like fru data writes. So + * we limit the length to 63 bytes. That way + * a 32-byte message gets sent as a single + * part. A larger message will be a 32-byte + * start and the next message is always going + * to be 1-31 bytes in length. Not ideal, but + * it should work. + */ + if (ssif_info->max_xmit_msg_size > 63) + ssif_info->max_xmit_msg_size = 63; break; default: @@ -1407,7 +1528,7 @@ static int ssif_probe(struct i2c_client *client, const struct i2c_device_id *id) } else { no_support: /* Assume no multi-part or PEC support */ - pr_info(PFX "Error fetching SSIF: %d %d %2.2x, your system probably doesn't support this command so using defaults\n", + pr_info(PFX "Error fetching SSIF: %d %d %2.2x, your system probably doesn't support this command so using defaults\n", rv, len, resp[2]); ssif_info->max_xmit_msg_size = 32; @@ -1436,6 +1557,8 @@ static int ssif_probe(struct i2c_client *client, const struct i2c_device_id *id) goto found; } + ssif_info->global_enables = resp[3]; + if (resp[3] & IPMI_BMC_EVT_MSG_BUFF) { ssif_info->has_event_buffer = true; /* buffer is already enabled, nothing to do. */ @@ -1444,18 +1567,37 @@ static int ssif_probe(struct i2c_client *client, const struct i2c_device_id *id) msg[0] = IPMI_NETFN_APP_REQUEST << 2; msg[1] = IPMI_SET_BMC_GLOBAL_ENABLES_CMD; - msg[2] = resp[3] | IPMI_BMC_EVT_MSG_BUFF; + msg[2] = ssif_info->global_enables | IPMI_BMC_EVT_MSG_BUFF; rv = do_cmd(client, 3, msg, &len, resp); if (rv || (len < 2)) { - pr_warn(PFX "Error getting global enables: %d %d %2.2x\n", + pr_warn(PFX "Error setting global enables: %d %d %2.2x\n", rv, len, resp[2]); rv = 0; /* Not fatal */ goto found; } - if (resp[2] == 0) + if (resp[2] == 0) { /* A successful return means the event buffer is supported. */ ssif_info->has_event_buffer = true; + ssif_info->global_enables |= IPMI_BMC_EVT_MSG_BUFF; + } + + msg[0] = IPMI_NETFN_APP_REQUEST << 2; + msg[1] = IPMI_SET_BMC_GLOBAL_ENABLES_CMD; + msg[2] = ssif_info->global_enables | IPMI_BMC_RCV_MSG_INTR; + rv = do_cmd(client, 3, msg, &len, resp); + if (rv || (len < 2)) { + pr_warn(PFX "Error setting global enables: %d %d %2.2x\n", + rv, len, resp[2]); + rv = 0; /* Not fatal */ + goto found; + } + + if (resp[2] == 0) { + /* A successful return means the alert is supported. */ + ssif_info->supports_alert = true; + ssif_info->global_enables |= IPMI_BMC_RCV_MSG_INTR; + } found: ssif_info->intf_num = atomic_inc_return(&next_intf); @@ -1813,6 +1955,7 @@ static struct i2c_driver ssif_i2c_driver = { }, .probe = ssif_probe, .remove = ssif_remove, + .alert = ssif_alert, .id_table = ssif_id, .detect = ssif_detect }; @@ -1832,7 +1975,7 @@ static int init_ipmi_ssif(void) rv = new_ssif_client(addr[i], adapter_name[i], dbg[i], slave_addrs[i], SI_HARDCODED); - if (!rv) + if (rv) pr_err(PFX "Couldn't add hardcoded device at addr 0x%x\n", addr[i]); diff --git a/drivers/firmware/efi/runtime-map.c b/drivers/firmware/efi/runtime-map.c index 87b8e3b900d2..5c55227a34c8 100644 --- a/drivers/firmware/efi/runtime-map.c +++ b/drivers/firmware/efi/runtime-map.c @@ -120,7 +120,8 @@ add_sysfs_runtime_map_entry(struct kobject *kobj, int nr) entry = kzalloc(sizeof(*entry), GFP_KERNEL); if (!entry) { kset_unregister(map_kset); - return entry; + map_kset = NULL; + return ERR_PTR(-ENOMEM); } memcpy(&entry->md, efi_runtime_map + nr * efi_memdesc_size, @@ -132,6 +133,7 @@ add_sysfs_runtime_map_entry(struct kobject *kobj, int nr) if (ret) { kobject_put(&entry->kobj); kset_unregister(map_kset); + map_kset = NULL; return ERR_PTR(ret); } @@ -195,8 +197,6 @@ out_add_entry: entry = *(map_entries + j); kobject_put(&entry->kobj); } - if (map_kset) - kset_unregister(map_kset); out: return ret; } diff --git a/drivers/gpio/gpio-omap.c b/drivers/gpio/gpio-omap.c index cd1d5bf48f36..b232397ad7ec 100644 --- a/drivers/gpio/gpio-omap.c +++ b/drivers/gpio/gpio-omap.c @@ -1054,38 +1054,8 @@ static void omap_gpio_mod_init(struct gpio_bank *bank) dev_err(bank->dev, "Could not get gpio dbck\n"); } -static void -omap_mpuio_alloc_gc(struct gpio_bank *bank, unsigned int irq_start, - unsigned int num) -{ - struct irq_chip_generic *gc; - struct irq_chip_type *ct; - - gc = irq_alloc_generic_chip("MPUIO", 1, irq_start, bank->base, - handle_simple_irq); - if (!gc) { - dev_err(bank->dev, "Memory alloc failed for gc\n"); - return; - } - - ct = gc->chip_types; - - /* NOTE: No ack required, reading IRQ status clears it. */ - ct->chip.irq_mask = irq_gc_mask_set_bit; - ct->chip.irq_unmask = irq_gc_mask_clr_bit; - ct->chip.irq_set_type = omap_gpio_irq_type; - - if (bank->regs->wkup_en) - ct->chip.irq_set_wake = omap_gpio_wake_enable; - - ct->regs.mask = OMAP_MPUIO_GPIO_INT / bank->stride; - irq_setup_generic_chip(gc, IRQ_MSK(num), IRQ_GC_INIT_MASK_CACHE, - IRQ_NOREQUEST | IRQ_NOPROBE, 0); -} - static int omap_gpio_chip_init(struct gpio_bank *bank, struct irq_chip *irqc) { - int j; static int gpio; int irq_base = 0; int ret; @@ -1132,6 +1102,15 @@ static int omap_gpio_chip_init(struct gpio_bank *bank, struct irq_chip *irqc) } #endif + /* MPUIO is a bit different, reading IRQ status clears it */ + if (bank->is_mpuio) { + irqc->irq_ack = dummy_irq_chip.irq_ack; + irqc->irq_mask = irq_gc_mask_set_bit; + irqc->irq_unmask = irq_gc_mask_clr_bit; + if (!bank->regs->wkup_en) + irqc->irq_set_wake = NULL; + } + ret = gpiochip_irqchip_add(&bank->chip, irqc, irq_base, omap_gpio_irq_handler, IRQ_TYPE_NONE); @@ -1145,15 +1124,6 @@ static int omap_gpio_chip_init(struct gpio_bank *bank, struct irq_chip *irqc) gpiochip_set_chained_irqchip(&bank->chip, irqc, bank->irq, omap_gpio_irq_handler); - for (j = 0; j < bank->width; j++) { - int irq = irq_find_mapping(bank->chip.irqdomain, j); - if (bank->is_mpuio) { - omap_mpuio_alloc_gc(bank, irq, bank->width); - irq_set_chip_and_handler(irq, NULL, NULL); - set_irq_flags(irq, 0); - } - } - return 0; } diff --git a/drivers/gpio/gpiolib-acpi.c b/drivers/gpio/gpiolib-acpi.c index d2303d50f561..725d16138b74 100644 --- a/drivers/gpio/gpiolib-acpi.c +++ b/drivers/gpio/gpiolib-acpi.c @@ -550,7 +550,7 @@ acpi_gpio_adr_space_handler(u32 function, acpi_physical_address address, length = min(agpio->pin_table_length, (u16)(pin_index + bits)); for (i = pin_index; i < length; ++i) { - unsigned pin = agpio->pin_table[i]; + int pin = agpio->pin_table[i]; struct acpi_gpio_connection *conn; struct gpio_desc *desc; bool found; diff --git a/drivers/gpio/gpiolib-sysfs.c b/drivers/gpio/gpiolib-sysfs.c index 7722ed53bd65..af3bc7a8033b 100644 --- a/drivers/gpio/gpiolib-sysfs.c +++ b/drivers/gpio/gpiolib-sysfs.c @@ -551,6 +551,7 @@ static struct class gpio_class = { */ int gpiod_export(struct gpio_desc *desc, bool direction_may_change) { + struct gpio_chip *chip; unsigned long flags; int status; const char *ioname = NULL; @@ -568,8 +569,16 @@ int gpiod_export(struct gpio_desc *desc, bool direction_may_change) return -EINVAL; } + chip = desc->chip; + mutex_lock(&sysfs_lock); + /* check if chip is being removed */ + if (!chip || !chip->exported) { + status = -ENODEV; + goto fail_unlock; + } + spin_lock_irqsave(&gpio_lock, flags); if (!test_bit(FLAG_REQUESTED, &desc->flags) || test_bit(FLAG_EXPORT, &desc->flags)) { @@ -783,12 +792,15 @@ void gpiochip_unexport(struct gpio_chip *chip) { int status; struct device *dev; + struct gpio_desc *desc; + unsigned int i; mutex_lock(&sysfs_lock); dev = class_find_device(&gpio_class, NULL, chip, match_export); if (dev) { put_device(dev); device_unregister(dev); + /* prevent further gpiod exports */ chip->exported = false; status = 0; } else @@ -797,6 +809,13 @@ void gpiochip_unexport(struct gpio_chip *chip) if (status) chip_dbg(chip, "%s: status %d\n", __func__, status); + + /* unregister gpiod class devices owned by sysfs */ + for (i = 0; i < chip->ngpio; i++) { + desc = &chip->desc[i]; + if (test_and_clear_bit(FLAG_SYSFS, &desc->flags)) + gpiod_free(desc); + } } static int __init gpiolib_sysfs_init(void) diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager.c b/drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager.c index 69af73f15310..596ee5cd3b84 100644 --- a/drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager.c +++ b/drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager.c @@ -430,9 +430,10 @@ static int unregister_process_nocpsch(struct device_queue_manager *dqm, BUG_ON(!dqm || !qpd); - BUG_ON(!list_empty(&qpd->queues_list)); + pr_debug("In func %s\n", __func__); - pr_debug("kfd: In func %s\n", __func__); + pr_debug("qpd->queues_list is %s\n", + list_empty(&qpd->queues_list) ? "empty" : "not empty"); retval = 0; mutex_lock(&dqm->lock); @@ -882,6 +883,8 @@ static int create_queue_cpsch(struct device_queue_manager *dqm, struct queue *q, return -ENOMEM; } + init_sdma_vm(dqm, q, qpd); + retval = mqd->init_mqd(mqd, &q->mqd, &q->mqd_mem_obj, &q->gart_mqd_addr, &q->properties); if (retval != 0) diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_topology.c b/drivers/gpu/drm/amd/amdkfd/kfd_topology.c index 661c6605d31b..e469c4b2e8cc 100644 --- a/drivers/gpu/drm/amd/amdkfd/kfd_topology.c +++ b/drivers/gpu/drm/amd/amdkfd/kfd_topology.c @@ -728,9 +728,9 @@ static ssize_t node_show(struct kobject *kobj, struct attribute *attr, sysfs_show_32bit_prop(buffer, "max_engine_clk_fcompute", dev->gpu->kfd2kgd->get_max_engine_clock_in_mhz( dev->gpu->kgd)); + sysfs_show_64bit_prop(buffer, "local_mem_size", - dev->gpu->kfd2kgd->get_vmem_size( - dev->gpu->kgd)); + (unsigned long long int) 0); sysfs_show_32bit_prop(buffer, "fw_version", dev->gpu->kfd2kgd->get_fw_version( diff --git a/drivers/gpu/drm/drm_irq.c b/drivers/gpu/drm/drm_irq.c index c8a34476570a..af9662e58272 100644 --- a/drivers/gpu/drm/drm_irq.c +++ b/drivers/gpu/drm/drm_irq.c @@ -131,12 +131,11 @@ static void drm_update_vblank_count(struct drm_device *dev, int crtc) /* Reinitialize corresponding vblank timestamp if high-precision query * available. Skip this step if query unsupported or failed. Will - * reinitialize delayed at next vblank interrupt in that case. + * reinitialize delayed at next vblank interrupt in that case and + * assign 0 for now, to mark the vblanktimestamp as invalid. */ - if (rc) { - tslot = atomic_read(&vblank->count) + diff; - vblanktimestamp(dev, crtc, tslot) = t_vblank; - } + tslot = atomic_read(&vblank->count) + diff; + vblanktimestamp(dev, crtc, tslot) = rc ? t_vblank : (struct timeval) {0, 0}; smp_mb__before_atomic(); atomic_add(diff, &vblank->count); diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index d547d9c8dda2..d0f3cbc87474 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -13635,9 +13635,6 @@ static const struct intel_dmi_quirk intel_dmi_quirks[] = { }; static struct intel_quirk intel_quirks[] = { - /* HP Mini needs pipe A force quirk (LP: #322104) */ - { 0x27ae, 0x103c, 0x361a, quirk_pipea_force }, - /* Toshiba Protege R-205, S-209 needs pipe A force quirk */ { 0x2592, 0x1179, 0x0001, quirk_pipea_force }, diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c index d0237102c27e..f27346e907b1 100644 --- a/drivers/gpu/drm/i915/intel_dp.c +++ b/drivers/gpu/drm/i915/intel_dp.c @@ -1348,7 +1348,7 @@ intel_dp_compute_config(struct intel_encoder *encoder, pipe_config->has_dp_encoder = true; pipe_config->has_drrs = false; - pipe_config->has_audio = intel_dp->has_audio; + pipe_config->has_audio = intel_dp->has_audio && port != PORT_A; if (is_edp(intel_dp) && intel_connector->panel.fixed_mode) { intel_fixed_panel_mode(intel_connector->panel.fixed_mode, @@ -2211,8 +2211,8 @@ static void intel_dp_get_config(struct intel_encoder *encoder, int dotclock; tmp = I915_READ(intel_dp->output_reg); - if (tmp & DP_AUDIO_OUTPUT_ENABLE) - pipe_config->has_audio = true; + + pipe_config->has_audio = tmp & DP_AUDIO_OUTPUT_ENABLE && port != PORT_A; if ((port == PORT_A) || !HAS_PCH_CPT(dev)) { if (tmp & DP_SYNC_HS_HIGH) @@ -3812,7 +3812,8 @@ intel_dp_get_dpcd(struct intel_dp *intel_dp) if (val == 0) break; - intel_dp->sink_rates[i] = val * 200; + /* Value read is in kHz while drm clock is saved in deca-kHz */ + intel_dp->sink_rates[i] = (val * 200) / 10; } intel_dp->num_sink_rates = i; } diff --git a/drivers/gpu/drm/i915/intel_lvds.c b/drivers/gpu/drm/i915/intel_lvds.c index 5abda1d2c018..fbcc7dff0d63 100644 --- a/drivers/gpu/drm/i915/intel_lvds.c +++ b/drivers/gpu/drm/i915/intel_lvds.c @@ -813,12 +813,28 @@ static int intel_dual_link_lvds_callback(const struct dmi_system_id *id) static const struct dmi_system_id intel_dual_link_lvds[] = { { .callback = intel_dual_link_lvds_callback, - .ident = "Apple MacBook Pro (Core i5/i7 Series)", + .ident = "Apple MacBook Pro 15\" (2010)", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "Apple Inc."), + DMI_MATCH(DMI_PRODUCT_NAME, "MacBookPro6,2"), + }, + }, + { + .callback = intel_dual_link_lvds_callback, + .ident = "Apple MacBook Pro 15\" (2011)", .matches = { DMI_MATCH(DMI_SYS_VENDOR, "Apple Inc."), DMI_MATCH(DMI_PRODUCT_NAME, "MacBookPro8,2"), }, }, + { + .callback = intel_dual_link_lvds_callback, + .ident = "Apple MacBook Pro 15\" (2012)", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "Apple Inc."), + DMI_MATCH(DMI_PRODUCT_NAME, "MacBookPro9,1"), + }, + }, { } /* terminating entry */ }; @@ -848,6 +864,11 @@ static bool compute_is_dual_link_lvds(struct intel_lvds_encoder *lvds_encoder) if (i915.lvds_channel_mode > 0) return i915.lvds_channel_mode == 2; + /* single channel LVDS is limited to 112 MHz */ + if (lvds_encoder->attached_connector->base.panel.fixed_mode->clock + > 112999) + return true; + if (dmi_check_system(intel_dual_link_lvds)) return true; @@ -1111,6 +1132,8 @@ void intel_lvds_init(struct drm_device *dev) out: mutex_unlock(&dev->mode_config.mutex); + intel_panel_init(&intel_connector->panel, fixed_mode, downclock_mode); + lvds_encoder->is_dual_link = compute_is_dual_link_lvds(lvds_encoder); DRM_DEBUG_KMS("detected %s-link lvds configuration\n", lvds_encoder->is_dual_link ? "dual" : "single"); @@ -1125,7 +1148,6 @@ out: } drm_connector_register(connector); - intel_panel_init(&intel_connector->panel, fixed_mode, downclock_mode); intel_panel_setup_backlight(connector, INVALID_PIPE); return; diff --git a/drivers/gpu/drm/radeon/radeon.h b/drivers/gpu/drm/radeon/radeon.h index d2abe481954f..46eb0fa75a61 100644 --- a/drivers/gpu/drm/radeon/radeon.h +++ b/drivers/gpu/drm/radeon/radeon.h @@ -1673,7 +1673,6 @@ struct radeon_uvd { struct radeon_bo *vcpu_bo; void *cpu_addr; uint64_t gpu_addr; - void *saved_bo; atomic_t handles[RADEON_MAX_UVD_HANDLES]; struct drm_file *filp[RADEON_MAX_UVD_HANDLES]; unsigned img_size[RADEON_MAX_UVD_HANDLES]; diff --git a/drivers/gpu/drm/radeon/radeon_asic.c b/drivers/gpu/drm/radeon/radeon_asic.c index fafd8ce4d58f..8dbf5083c4ff 100644 --- a/drivers/gpu/drm/radeon/radeon_asic.c +++ b/drivers/gpu/drm/radeon/radeon_asic.c @@ -1202,7 +1202,7 @@ static struct radeon_asic rs780_asic = { static struct radeon_asic_ring rv770_uvd_ring = { .ib_execute = &uvd_v1_0_ib_execute, .emit_fence = &uvd_v2_2_fence_emit, - .emit_semaphore = &uvd_v1_0_semaphore_emit, + .emit_semaphore = &uvd_v2_2_semaphore_emit, .cs_parse = &radeon_uvd_cs_parse, .ring_test = &uvd_v1_0_ring_test, .ib_test = &uvd_v1_0_ib_test, diff --git a/drivers/gpu/drm/radeon/radeon_asic.h b/drivers/gpu/drm/radeon/radeon_asic.h index cf0a90bb61ca..a3ca8cd305c5 100644 --- a/drivers/gpu/drm/radeon/radeon_asic.h +++ b/drivers/gpu/drm/radeon/radeon_asic.h @@ -949,6 +949,10 @@ void uvd_v1_0_ib_execute(struct radeon_device *rdev, struct radeon_ib *ib); int uvd_v2_2_resume(struct radeon_device *rdev); void uvd_v2_2_fence_emit(struct radeon_device *rdev, struct radeon_fence *fence); +bool uvd_v2_2_semaphore_emit(struct radeon_device *rdev, + struct radeon_ring *ring, + struct radeon_semaphore *semaphore, + bool emit_wait); /* uvd v3.1 */ bool uvd_v3_1_semaphore_emit(struct radeon_device *rdev, diff --git a/drivers/gpu/drm/radeon/radeon_audio.c b/drivers/gpu/drm/radeon/radeon_audio.c index 8b82abb78df1..dcb779647c57 100644 --- a/drivers/gpu/drm/radeon/radeon_audio.c +++ b/drivers/gpu/drm/radeon/radeon_audio.c @@ -464,6 +464,10 @@ void radeon_audio_detect(struct drm_connector *connector, return; rdev = connector->encoder->dev->dev_private; + + if (!radeon_audio_chipset_supported(rdev)) + return; + radeon_encoder = to_radeon_encoder(connector->encoder); dig = radeon_encoder->enc_priv; diff --git a/drivers/gpu/drm/radeon/radeon_mn.c b/drivers/gpu/drm/radeon/radeon_mn.c index 535bf404b725..eef006c48584 100644 --- a/drivers/gpu/drm/radeon/radeon_mn.c +++ b/drivers/gpu/drm/radeon/radeon_mn.c @@ -142,6 +142,9 @@ static void radeon_mn_invalidate_range_start(struct mmu_notifier *mn, list_for_each_entry(bo, &node->bos, mn_list) { + if (!bo->tbo.ttm || bo->tbo.ttm->state != tt_bound) + continue; + r = radeon_bo_reserve(bo, true); if (r) { DRM_ERROR("(%ld) failed to reserve user bo\n", r); diff --git a/drivers/gpu/drm/radeon/radeon_ttm.c b/drivers/gpu/drm/radeon/radeon_ttm.c index b292aca0f342..edafd3c2b170 100644 --- a/drivers/gpu/drm/radeon/radeon_ttm.c +++ b/drivers/gpu/drm/radeon/radeon_ttm.c @@ -591,8 +591,7 @@ static void radeon_ttm_tt_unpin_userptr(struct ttm_tt *ttm) { struct radeon_device *rdev = radeon_get_rdev(ttm->bdev); struct radeon_ttm_tt *gtt = (void *)ttm; - struct scatterlist *sg; - int i; + struct sg_page_iter sg_iter; int write = !(gtt->userflags & RADEON_GEM_USERPTR_READONLY); enum dma_data_direction direction = write ? @@ -605,9 +604,8 @@ static void radeon_ttm_tt_unpin_userptr(struct ttm_tt *ttm) /* free the sg table and pages again */ dma_unmap_sg(rdev->dev, ttm->sg->sgl, ttm->sg->nents, direction); - for_each_sg(ttm->sg->sgl, sg, ttm->sg->nents, i) { - struct page *page = sg_page(sg); - + for_each_sg_page(ttm->sg->sgl, &sg_iter, ttm->sg->nents, 0) { + struct page *page = sg_page_iter_page(&sg_iter); if (!(gtt->userflags & RADEON_GEM_USERPTR_READONLY)) set_page_dirty(page); diff --git a/drivers/gpu/drm/radeon/radeon_uvd.c b/drivers/gpu/drm/radeon/radeon_uvd.c index c10b2aec6450..6edcb5485092 100644 --- a/drivers/gpu/drm/radeon/radeon_uvd.c +++ b/drivers/gpu/drm/radeon/radeon_uvd.c @@ -204,28 +204,32 @@ void radeon_uvd_fini(struct radeon_device *rdev) int radeon_uvd_suspend(struct radeon_device *rdev) { - unsigned size; - void *ptr; - int i; + int i, r; if (rdev->uvd.vcpu_bo == NULL) return 0; - for (i = 0; i < RADEON_MAX_UVD_HANDLES; ++i) - if (atomic_read(&rdev->uvd.handles[i])) - break; + for (i = 0; i < RADEON_MAX_UVD_HANDLES; ++i) { + uint32_t handle = atomic_read(&rdev->uvd.handles[i]); + if (handle != 0) { + struct radeon_fence *fence; - if (i == RADEON_MAX_UVD_HANDLES) - return 0; + radeon_uvd_note_usage(rdev); - size = radeon_bo_size(rdev->uvd.vcpu_bo); - size -= rdev->uvd_fw->size; + r = radeon_uvd_get_destroy_msg(rdev, + R600_RING_TYPE_UVD_INDEX, handle, &fence); + if (r) { + DRM_ERROR("Error destroying UVD (%d)!\n", r); + continue; + } - ptr = rdev->uvd.cpu_addr; - ptr += rdev->uvd_fw->size; + radeon_fence_wait(fence, false); + radeon_fence_unref(&fence); - rdev->uvd.saved_bo = kmalloc(size, GFP_KERNEL); - memcpy(rdev->uvd.saved_bo, ptr, size); + rdev->uvd.filp[i] = NULL; + atomic_set(&rdev->uvd.handles[i], 0); + } + } return 0; } @@ -246,12 +250,7 @@ int radeon_uvd_resume(struct radeon_device *rdev) ptr = rdev->uvd.cpu_addr; ptr += rdev->uvd_fw->size; - if (rdev->uvd.saved_bo != NULL) { - memcpy(ptr, rdev->uvd.saved_bo, size); - kfree(rdev->uvd.saved_bo); - rdev->uvd.saved_bo = NULL; - } else - memset(ptr, 0, size); + memset(ptr, 0, size); return 0; } @@ -396,6 +395,29 @@ static int radeon_uvd_cs_msg_decode(uint32_t *msg, unsigned buf_sizes[]) return 0; } +static int radeon_uvd_validate_codec(struct radeon_cs_parser *p, + unsigned stream_type) +{ + switch (stream_type) { + case 0: /* H264 */ + case 1: /* VC1 */ + /* always supported */ + return 0; + + case 3: /* MPEG2 */ + case 4: /* MPEG4 */ + /* only since UVD 3 */ + if (p->rdev->family >= CHIP_PALM) + return 0; + + /* fall through */ + default: + DRM_ERROR("UVD codec not supported by hardware %d!\n", + stream_type); + return -EINVAL; + } +} + static int radeon_uvd_cs_msg(struct radeon_cs_parser *p, struct radeon_bo *bo, unsigned offset, unsigned buf_sizes[]) { @@ -436,50 +458,70 @@ static int radeon_uvd_cs_msg(struct radeon_cs_parser *p, struct radeon_bo *bo, return -EINVAL; } - if (msg_type == 1) { - /* it's a decode msg, calc buffer sizes */ - r = radeon_uvd_cs_msg_decode(msg, buf_sizes); - /* calc image size (width * height) */ - img_size = msg[6] * msg[7]; + switch (msg_type) { + case 0: + /* it's a create msg, calc image size (width * height) */ + img_size = msg[7] * msg[8]; + + r = radeon_uvd_validate_codec(p, msg[4]); radeon_bo_kunmap(bo); if (r) return r; - } else if (msg_type == 2) { + /* try to alloc a new handle */ + for (i = 0; i < RADEON_MAX_UVD_HANDLES; ++i) { + if (atomic_read(&p->rdev->uvd.handles[i]) == handle) { + DRM_ERROR("Handle 0x%x already in use!\n", handle); + return -EINVAL; + } + + if (!atomic_cmpxchg(&p->rdev->uvd.handles[i], 0, handle)) { + p->rdev->uvd.filp[i] = p->filp; + p->rdev->uvd.img_size[i] = img_size; + return 0; + } + } + + DRM_ERROR("No more free UVD handles!\n"); + return -EINVAL; + + case 1: + /* it's a decode msg, validate codec and calc buffer sizes */ + r = radeon_uvd_validate_codec(p, msg[4]); + if (!r) + r = radeon_uvd_cs_msg_decode(msg, buf_sizes); + radeon_bo_kunmap(bo); + if (r) + return r; + + /* validate the handle */ + for (i = 0; i < RADEON_MAX_UVD_HANDLES; ++i) { + if (atomic_read(&p->rdev->uvd.handles[i]) == handle) { + if (p->rdev->uvd.filp[i] != p->filp) { + DRM_ERROR("UVD handle collision detected!\n"); + return -EINVAL; + } + return 0; + } + } + + DRM_ERROR("Invalid UVD handle 0x%x!\n", handle); + return -ENOENT; + + case 2: /* it's a destroy msg, free the handle */ for (i = 0; i < RADEON_MAX_UVD_HANDLES; ++i) atomic_cmpxchg(&p->rdev->uvd.handles[i], handle, 0); radeon_bo_kunmap(bo); return 0; - } else { - /* it's a create msg, calc image size (width * height) */ - img_size = msg[7] * msg[8]; - radeon_bo_kunmap(bo); - if (msg_type != 0) { - DRM_ERROR("Illegal UVD message type (%d)!\n", msg_type); - return -EINVAL; - } - - /* it's a create msg, no special handling needed */ - } - - /* create or decode, validate the handle */ - for (i = 0; i < RADEON_MAX_UVD_HANDLES; ++i) { - if (atomic_read(&p->rdev->uvd.handles[i]) == handle) - return 0; - } + default: - /* handle not found try to alloc a new one */ - for (i = 0; i < RADEON_MAX_UVD_HANDLES; ++i) { - if (!atomic_cmpxchg(&p->rdev->uvd.handles[i], 0, handle)) { - p->rdev->uvd.filp[i] = p->filp; - p->rdev->uvd.img_size[i] = img_size; - return 0; - } + DRM_ERROR("Illegal UVD message type (%d)!\n", msg_type); + return -EINVAL; } - DRM_ERROR("No more free UVD handles!\n"); + BUG(); return -EINVAL; } diff --git a/drivers/gpu/drm/radeon/radeon_vce.c b/drivers/gpu/drm/radeon/radeon_vce.c index 24f849f888bb..0de5711ac508 100644 --- a/drivers/gpu/drm/radeon/radeon_vce.c +++ b/drivers/gpu/drm/radeon/radeon_vce.c @@ -493,18 +493,27 @@ int radeon_vce_cs_reloc(struct radeon_cs_parser *p, int lo, int hi, * * @p: parser context * @handle: handle to validate + * @allocated: allocated a new handle? * * Validates the handle and return the found session index or -EINVAL * we we don't have another free session index. */ -int radeon_vce_validate_handle(struct radeon_cs_parser *p, uint32_t handle) +static int radeon_vce_validate_handle(struct radeon_cs_parser *p, + uint32_t handle, bool *allocated) { unsigned i; + *allocated = false; + /* validate the handle */ for (i = 0; i < RADEON_MAX_VCE_HANDLES; ++i) { - if (atomic_read(&p->rdev->vce.handles[i]) == handle) + if (atomic_read(&p->rdev->vce.handles[i]) == handle) { + if (p->rdev->vce.filp[i] != p->filp) { + DRM_ERROR("VCE handle collision detected!\n"); + return -EINVAL; + } return i; + } } /* handle not found try to alloc a new one */ @@ -512,6 +521,7 @@ int radeon_vce_validate_handle(struct radeon_cs_parser *p, uint32_t handle) if (!atomic_cmpxchg(&p->rdev->vce.handles[i], 0, handle)) { p->rdev->vce.filp[i] = p->filp; p->rdev->vce.img_size[i] = 0; + *allocated = true; return i; } } @@ -529,10 +539,10 @@ int radeon_vce_validate_handle(struct radeon_cs_parser *p, uint32_t handle) int radeon_vce_cs_parse(struct radeon_cs_parser *p) { int session_idx = -1; - bool destroyed = false; + bool destroyed = false, created = false, allocated = false; uint32_t tmp, handle = 0; uint32_t *size = &tmp; - int i, r; + int i, r = 0; while (p->idx < p->chunk_ib->length_dw) { uint32_t len = radeon_get_ib_value(p, p->idx); @@ -540,18 +550,21 @@ int radeon_vce_cs_parse(struct radeon_cs_parser *p) if ((len < 8) || (len & 3)) { DRM_ERROR("invalid VCE command length (%d)!\n", len); - return -EINVAL; + r = -EINVAL; + goto out; } if (destroyed) { DRM_ERROR("No other command allowed after destroy!\n"); - return -EINVAL; + r = -EINVAL; + goto out; } switch (cmd) { case 0x00000001: // session handle = radeon_get_ib_value(p, p->idx + 2); - session_idx = radeon_vce_validate_handle(p, handle); + session_idx = radeon_vce_validate_handle(p, handle, + &allocated); if (session_idx < 0) return session_idx; size = &p->rdev->vce.img_size[session_idx]; @@ -561,6 +574,13 @@ int radeon_vce_cs_parse(struct radeon_cs_parser *p) break; case 0x01000001: // create + created = true; + if (!allocated) { + DRM_ERROR("Handle already in use!\n"); + r = -EINVAL; + goto out; + } + *size = radeon_get_ib_value(p, p->idx + 8) * radeon_get_ib_value(p, p->idx + 10) * 8 * 3 / 2; @@ -578,12 +598,12 @@ int radeon_vce_cs_parse(struct radeon_cs_parser *p) r = radeon_vce_cs_reloc(p, p->idx + 10, p->idx + 9, *size); if (r) - return r; + goto out; r = radeon_vce_cs_reloc(p, p->idx + 12, p->idx + 11, *size / 3); if (r) - return r; + goto out; break; case 0x02000001: // destroy @@ -594,7 +614,7 @@ int radeon_vce_cs_parse(struct radeon_cs_parser *p) r = radeon_vce_cs_reloc(p, p->idx + 3, p->idx + 2, *size * 2); if (r) - return r; + goto out; break; case 0x05000004: // video bitstream buffer @@ -602,36 +622,47 @@ int radeon_vce_cs_parse(struct radeon_cs_parser *p) r = radeon_vce_cs_reloc(p, p->idx + 3, p->idx + 2, tmp); if (r) - return r; + goto out; break; case 0x05000005: // feedback buffer r = radeon_vce_cs_reloc(p, p->idx + 3, p->idx + 2, 4096); if (r) - return r; + goto out; break; default: DRM_ERROR("invalid VCE command (0x%x)!\n", cmd); - return -EINVAL; + r = -EINVAL; + goto out; } if (session_idx == -1) { DRM_ERROR("no session command at start of IB\n"); - return -EINVAL; + r = -EINVAL; + goto out; } p->idx += len / 4; } - if (destroyed) { - /* IB contains a destroy msg, free the handle */ + if (allocated && !created) { + DRM_ERROR("New session without create command!\n"); + r = -ENOENT; + } + +out: + if ((!r && destroyed) || (r && allocated)) { + /* + * IB contains a destroy msg or we have allocated an + * handle and got an error, anyway free the handle + */ for (i = 0; i < RADEON_MAX_VCE_HANDLES; ++i) atomic_cmpxchg(&p->rdev->vce.handles[i], handle, 0); } - return 0; + return r; } /** diff --git a/drivers/gpu/drm/radeon/rv770d.h b/drivers/gpu/drm/radeon/rv770d.h index 3cf1e2921545..9ef2064b1c9c 100644 --- a/drivers/gpu/drm/radeon/rv770d.h +++ b/drivers/gpu/drm/radeon/rv770d.h @@ -989,6 +989,9 @@ ((n) & 0x3FFF) << 16) /* UVD */ +#define UVD_SEMA_ADDR_LOW 0xef00 +#define UVD_SEMA_ADDR_HIGH 0xef04 +#define UVD_SEMA_CMD 0xef08 #define UVD_GPCOM_VCPU_CMD 0xef0c #define UVD_GPCOM_VCPU_DATA0 0xef10 #define UVD_GPCOM_VCPU_DATA1 0xef14 diff --git a/drivers/gpu/drm/radeon/uvd_v1_0.c b/drivers/gpu/drm/radeon/uvd_v1_0.c index e72b3cb59358..c6b1cbca47fc 100644 --- a/drivers/gpu/drm/radeon/uvd_v1_0.c +++ b/drivers/gpu/drm/radeon/uvd_v1_0.c @@ -466,18 +466,8 @@ bool uvd_v1_0_semaphore_emit(struct radeon_device *rdev, struct radeon_semaphore *semaphore, bool emit_wait) { - uint64_t addr = semaphore->gpu_addr; - - radeon_ring_write(ring, PACKET0(UVD_SEMA_ADDR_LOW, 0)); - radeon_ring_write(ring, (addr >> 3) & 0x000FFFFF); - - radeon_ring_write(ring, PACKET0(UVD_SEMA_ADDR_HIGH, 0)); - radeon_ring_write(ring, (addr >> 23) & 0x000FFFFF); - - radeon_ring_write(ring, PACKET0(UVD_SEMA_CMD, 0)); - radeon_ring_write(ring, emit_wait ? 1 : 0); - - return true; + /* disable semaphores for UVD V1 hardware */ + return false; } /** diff --git a/drivers/gpu/drm/radeon/uvd_v2_2.c b/drivers/gpu/drm/radeon/uvd_v2_2.c index 89193519f8a1..7ed778cec7c6 100644 --- a/drivers/gpu/drm/radeon/uvd_v2_2.c +++ b/drivers/gpu/drm/radeon/uvd_v2_2.c @@ -60,6 +60,35 @@ void uvd_v2_2_fence_emit(struct radeon_device *rdev, } /** + * uvd_v2_2_semaphore_emit - emit semaphore command + * + * @rdev: radeon_device pointer + * @ring: radeon_ring pointer + * @semaphore: semaphore to emit commands for + * @emit_wait: true if we should emit a wait command + * + * Emit a semaphore command (either wait or signal) to the UVD ring. + */ +bool uvd_v2_2_semaphore_emit(struct radeon_device *rdev, + struct radeon_ring *ring, + struct radeon_semaphore *semaphore, + bool emit_wait) +{ + uint64_t addr = semaphore->gpu_addr; + + radeon_ring_write(ring, PACKET0(UVD_SEMA_ADDR_LOW, 0)); + radeon_ring_write(ring, (addr >> 3) & 0x000FFFFF); + + radeon_ring_write(ring, PACKET0(UVD_SEMA_ADDR_HIGH, 0)); + radeon_ring_write(ring, (addr >> 23) & 0x000FFFFF); + + radeon_ring_write(ring, PACKET0(UVD_SEMA_CMD, 0)); + radeon_ring_write(ring, emit_wait ? 1 : 0); + + return true; +} + +/** * uvd_v2_2_resume - memory controller programming * * @rdev: radeon_device pointer diff --git a/drivers/gpu/drm/tegra/drm.c b/drivers/gpu/drm/tegra/drm.c index 1833abd7d3aa..bfad15a913a0 100644 --- a/drivers/gpu/drm/tegra/drm.c +++ b/drivers/gpu/drm/tegra/drm.c @@ -173,7 +173,6 @@ static int tegra_drm_load(struct drm_device *drm, unsigned long flags) drm->irq_enabled = true; /* syncpoints are used for full 32-bit hardware VBLANK counters */ - drm->vblank_disable_immediate = true; drm->max_vblank_count = 0xffffffff; err = drm_vblank_init(drm, drm->mode_config.num_crtc); diff --git a/drivers/ide/Kconfig b/drivers/ide/Kconfig index a04c49f2a011..39ea67f9b066 100644 --- a/drivers/ide/Kconfig +++ b/drivers/ide/Kconfig @@ -643,15 +643,6 @@ config BLK_DEV_TC86C001 help This driver adds support for Toshiba TC86C001 GOKU-S chip. -config BLK_DEV_CELLEB - tristate "Toshiba's Cell Reference Set IDE support" - depends on PPC_CELLEB - select BLK_DEV_IDEDMA_PCI - help - This driver provides support for the on-board IDE controller on - Toshiba Cell Reference Board. - If unsure, say Y. - endif # TODO: BLK_DEV_IDEDMA_PCI -> BLK_DEV_IDEDMA_SFF diff --git a/drivers/ide/Makefile b/drivers/ide/Makefile index a04ee82f1c8f..2a8c417d4081 100644 --- a/drivers/ide/Makefile +++ b/drivers/ide/Makefile @@ -38,7 +38,6 @@ obj-$(CONFIG_BLK_DEV_AEC62XX) += aec62xx.o obj-$(CONFIG_BLK_DEV_ALI15X3) += alim15x3.o obj-$(CONFIG_BLK_DEV_AMD74XX) += amd74xx.o obj-$(CONFIG_BLK_DEV_ATIIXP) += atiixp.o -obj-$(CONFIG_BLK_DEV_CELLEB) += scc_pata.o obj-$(CONFIG_BLK_DEV_CMD64X) += cmd64x.o obj-$(CONFIG_BLK_DEV_CS5520) += cs5520.o obj-$(CONFIG_BLK_DEV_CS5530) += cs5530.o diff --git a/drivers/ide/scc_pata.c b/drivers/ide/scc_pata.c deleted file mode 100644 index 2a2d188b5d5b..000000000000 --- a/drivers/ide/scc_pata.c +++ /dev/null @@ -1,887 +0,0 @@ -/* - * Support for IDE interfaces on Celleb platform - * - * (C) Copyright 2006 TOSHIBA CORPORATION - * - * This code is based on drivers/ide/pci/siimage.c: - * Copyright (C) 2001-2002 Andre Hedrick <andre@linux-ide.org> - * Copyright (C) 2003 Red Hat - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License along - * with this program; if not, write to the Free Software Foundation, Inc., - * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. - */ - -#include <linux/types.h> -#include <linux/module.h> -#include <linux/pci.h> -#include <linux/delay.h> -#include <linux/ide.h> -#include <linux/init.h> - -#define PCI_DEVICE_ID_TOSHIBA_SCC_ATA 0x01b4 - -#define SCC_PATA_NAME "scc IDE" - -#define TDVHSEL_MASTER 0x00000001 -#define TDVHSEL_SLAVE 0x00000004 - -#define MODE_JCUSFEN 0x00000080 - -#define CCKCTRL_ATARESET 0x00040000 -#define CCKCTRL_BUFCNT 0x00020000 -#define CCKCTRL_CRST 0x00010000 -#define CCKCTRL_OCLKEN 0x00000100 -#define CCKCTRL_ATACLKOEN 0x00000002 -#define CCKCTRL_LCLKEN 0x00000001 - -#define QCHCD_IOS_SS 0x00000001 - -#define QCHSD_STPDIAG 0x00020000 - -#define INTMASK_MSK 0xD1000012 -#define INTSTS_SERROR 0x80000000 -#define INTSTS_PRERR 0x40000000 -#define INTSTS_RERR 0x10000000 -#define INTSTS_ICERR 0x01000000 -#define INTSTS_BMSINT 0x00000010 -#define INTSTS_BMHE 0x00000008 -#define INTSTS_IOIRQS 0x00000004 -#define INTSTS_INTRQ 0x00000002 -#define INTSTS_ACTEINT 0x00000001 - -#define ECMODE_VALUE 0x01 - -static struct scc_ports { - unsigned long ctl, dma; - struct ide_host *host; /* for removing port from system */ -} scc_ports[MAX_HWIFS]; - -/* PIO transfer mode table */ -/* JCHST */ -static unsigned long JCHSTtbl[2][7] = { - {0x0E, 0x05, 0x02, 0x03, 0x02, 0x00, 0x00}, /* 100MHz */ - {0x13, 0x07, 0x04, 0x04, 0x03, 0x00, 0x00} /* 133MHz */ -}; - -/* JCHHT */ -static unsigned long JCHHTtbl[2][7] = { - {0x0E, 0x02, 0x02, 0x02, 0x02, 0x00, 0x00}, /* 100MHz */ - {0x13, 0x03, 0x03, 0x03, 0x03, 0x00, 0x00} /* 133MHz */ -}; - -/* JCHCT */ -static unsigned long JCHCTtbl[2][7] = { - {0x1D, 0x1D, 0x1C, 0x0B, 0x06, 0x00, 0x00}, /* 100MHz */ - {0x27, 0x26, 0x26, 0x0E, 0x09, 0x00, 0x00} /* 133MHz */ -}; - - -/* DMA transfer mode table */ -/* JCHDCTM/JCHDCTS */ -static unsigned long JCHDCTxtbl[2][7] = { - {0x0A, 0x06, 0x04, 0x03, 0x01, 0x00, 0x00}, /* 100MHz */ - {0x0E, 0x09, 0x06, 0x04, 0x02, 0x01, 0x00} /* 133MHz */ -}; - -/* JCSTWTM/JCSTWTS */ -static unsigned long JCSTWTxtbl[2][7] = { - {0x06, 0x04, 0x03, 0x02, 0x02, 0x02, 0x00}, /* 100MHz */ - {0x09, 0x06, 0x04, 0x02, 0x02, 0x02, 0x02} /* 133MHz */ -}; - -/* JCTSS */ -static unsigned long JCTSStbl[2][7] = { - {0x05, 0x05, 0x05, 0x05, 0x05, 0x05, 0x00}, /* 100MHz */ - {0x05, 0x05, 0x05, 0x05, 0x05, 0x05, 0x05} /* 133MHz */ -}; - -/* JCENVT */ -static unsigned long JCENVTtbl[2][7] = { - {0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x00}, /* 100MHz */ - {0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02} /* 133MHz */ -}; - -/* JCACTSELS/JCACTSELM */ -static unsigned long JCACTSELtbl[2][7] = { - {0x00, 0x00, 0x00, 0x00, 0x01, 0x01, 0x00}, /* 100MHz */ - {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01} /* 133MHz */ -}; - - -static u8 scc_ide_inb(unsigned long port) -{ - u32 data = in_be32((void*)port); - return (u8)data; -} - -static void scc_exec_command(ide_hwif_t *hwif, u8 cmd) -{ - out_be32((void *)hwif->io_ports.command_addr, cmd); - eieio(); - in_be32((void *)(hwif->dma_base + 0x01c)); - eieio(); -} - -static u8 scc_read_status(ide_hwif_t *hwif) -{ - return (u8)in_be32((void *)hwif->io_ports.status_addr); -} - -static u8 scc_read_altstatus(ide_hwif_t *hwif) -{ - return (u8)in_be32((void *)hwif->io_ports.ctl_addr); -} - -static u8 scc_dma_sff_read_status(ide_hwif_t *hwif) -{ - return (u8)in_be32((void *)(hwif->dma_base + 4)); -} - -static void scc_write_devctl(ide_hwif_t *hwif, u8 ctl) -{ - out_be32((void *)hwif->io_ports.ctl_addr, ctl); - eieio(); - in_be32((void *)(hwif->dma_base + 0x01c)); - eieio(); -} - -static void scc_ide_insw(unsigned long port, void *addr, u32 count) -{ - u16 *ptr = (u16 *)addr; - while (count--) { - *ptr++ = le16_to_cpu(in_be32((void*)port)); - } -} - -static void scc_ide_insl(unsigned long port, void *addr, u32 count) -{ - u16 *ptr = (u16 *)addr; - while (count--) { - *ptr++ = le16_to_cpu(in_be32((void*)port)); - *ptr++ = le16_to_cpu(in_be32((void*)port)); - } -} - -static void scc_ide_outb(u8 addr, unsigned long port) -{ - out_be32((void*)port, addr); -} - -static void -scc_ide_outsw(unsigned long port, void *addr, u32 count) -{ - u16 *ptr = (u16 *)addr; - while (count--) { - out_be32((void*)port, cpu_to_le16(*ptr++)); - } -} - -static void -scc_ide_outsl(unsigned long port, void *addr, u32 count) -{ - u16 *ptr = (u16 *)addr; - while (count--) { - out_be32((void*)port, cpu_to_le16(*ptr++)); - out_be32((void*)port, cpu_to_le16(*ptr++)); - } -} - -/** - * scc_set_pio_mode - set host controller for PIO mode - * @hwif: port - * @drive: drive - * - * Load the timing settings for this device mode into the - * controller. - */ - -static void scc_set_pio_mode(ide_hwif_t *hwif, ide_drive_t *drive) -{ - struct scc_ports *ports = ide_get_hwifdata(hwif); - unsigned long ctl_base = ports->ctl; - unsigned long cckctrl_port = ctl_base + 0xff0; - unsigned long piosht_port = ctl_base + 0x000; - unsigned long pioct_port = ctl_base + 0x004; - unsigned long reg; - int offset; - const u8 pio = drive->pio_mode - XFER_PIO_0; - - reg = in_be32((void __iomem *)cckctrl_port); - if (reg & CCKCTRL_ATACLKOEN) { - offset = 1; /* 133MHz */ - } else { - offset = 0; /* 100MHz */ - } - reg = JCHSTtbl[offset][pio] << 16 | JCHHTtbl[offset][pio]; - out_be32((void __iomem *)piosht_port, reg); - reg = JCHCTtbl[offset][pio]; - out_be32((void __iomem *)pioct_port, reg); -} - -/** - * scc_set_dma_mode - set host controller for DMA mode - * @hwif: port - * @drive: drive - * - * Load the timing settings for this device mode into the - * controller. - */ - -static void scc_set_dma_mode(ide_hwif_t *hwif, ide_drive_t *drive) -{ - struct scc_ports *ports = ide_get_hwifdata(hwif); - unsigned long ctl_base = ports->ctl; - unsigned long cckctrl_port = ctl_base + 0xff0; - unsigned long mdmact_port = ctl_base + 0x008; - unsigned long mcrcst_port = ctl_base + 0x00c; - unsigned long sdmact_port = ctl_base + 0x010; - unsigned long scrcst_port = ctl_base + 0x014; - unsigned long udenvt_port = ctl_base + 0x018; - unsigned long tdvhsel_port = ctl_base + 0x020; - int is_slave = drive->dn & 1; - int offset, idx; - unsigned long reg; - unsigned long jcactsel; - const u8 speed = drive->dma_mode; - - reg = in_be32((void __iomem *)cckctrl_port); - if (reg & CCKCTRL_ATACLKOEN) { - offset = 1; /* 133MHz */ - } else { - offset = 0; /* 100MHz */ - } - - idx = speed - XFER_UDMA_0; - - jcactsel = JCACTSELtbl[offset][idx]; - if (is_slave) { - out_be32((void __iomem *)sdmact_port, JCHDCTxtbl[offset][idx]); - out_be32((void __iomem *)scrcst_port, JCSTWTxtbl[offset][idx]); - jcactsel = jcactsel << 2; - out_be32((void __iomem *)tdvhsel_port, (in_be32((void __iomem *)tdvhsel_port) & ~TDVHSEL_SLAVE) | jcactsel); - } else { - out_be32((void __iomem *)mdmact_port, JCHDCTxtbl[offset][idx]); - out_be32((void __iomem *)mcrcst_port, JCSTWTxtbl[offset][idx]); - out_be32((void __iomem *)tdvhsel_port, (in_be32((void __iomem *)tdvhsel_port) & ~TDVHSEL_MASTER) | jcactsel); - } - reg = JCTSStbl[offset][idx] << 16 | JCENVTtbl[offset][idx]; - out_be32((void __iomem *)udenvt_port, reg); -} - -static void scc_dma_host_set(ide_drive_t *drive, int on) -{ - ide_hwif_t *hwif = drive->hwif; - u8 unit = drive->dn & 1; - u8 dma_stat = scc_dma_sff_read_status(hwif); - - if (on) - dma_stat |= (1 << (5 + unit)); - else - dma_stat &= ~(1 << (5 + unit)); - - scc_ide_outb(dma_stat, hwif->dma_base + 4); -} - -/** - * scc_dma_setup - begin a DMA phase - * @drive: target device - * @cmd: command - * - * Build an IDE DMA PRD (IDE speak for scatter gather table) - * and then set up the DMA transfer registers. - * - * Returns 0 on success. If a PIO fallback is required then 1 - * is returned. - */ - -static int scc_dma_setup(ide_drive_t *drive, struct ide_cmd *cmd) -{ - ide_hwif_t *hwif = drive->hwif; - u32 rw = (cmd->tf_flags & IDE_TFLAG_WRITE) ? 0 : ATA_DMA_WR; - u8 dma_stat; - - /* fall back to pio! */ - if (ide_build_dmatable(drive, cmd) == 0) - return 1; - - /* PRD table */ - out_be32((void __iomem *)(hwif->dma_base + 8), hwif->dmatable_dma); - - /* specify r/w */ - out_be32((void __iomem *)hwif->dma_base, rw); - - /* read DMA status for INTR & ERROR flags */ - dma_stat = scc_dma_sff_read_status(hwif); - - /* clear INTR & ERROR flags */ - out_be32((void __iomem *)(hwif->dma_base + 4), dma_stat | 6); - - return 0; -} - -static void scc_dma_start(ide_drive_t *drive) -{ - ide_hwif_t *hwif = drive->hwif; - u8 dma_cmd = scc_ide_inb(hwif->dma_base); - - /* start DMA */ - scc_ide_outb(dma_cmd | 1, hwif->dma_base); -} - -static int __scc_dma_end(ide_drive_t *drive) -{ - ide_hwif_t *hwif = drive->hwif; - u8 dma_stat, dma_cmd; - - /* get DMA command mode */ - dma_cmd = scc_ide_inb(hwif->dma_base); - /* stop DMA */ - scc_ide_outb(dma_cmd & ~1, hwif->dma_base); - /* get DMA status */ - dma_stat = scc_dma_sff_read_status(hwif); - /* clear the INTR & ERROR bits */ - scc_ide_outb(dma_stat | 6, hwif->dma_base + 4); - /* verify good DMA status */ - return (dma_stat & 7) != 4 ? (0x10 | dma_stat) : 0; -} - -/** - * scc_dma_end - Stop DMA - * @drive: IDE drive - * - * Check and clear INT Status register. - * Then call __scc_dma_end(). - */ - -static int scc_dma_end(ide_drive_t *drive) -{ - ide_hwif_t *hwif = drive->hwif; - void __iomem *dma_base = (void __iomem *)hwif->dma_base; - unsigned long intsts_port = hwif->dma_base + 0x014; - u32 reg; - int dma_stat, data_loss = 0; - static int retry = 0; - - /* errata A308 workaround: Step5 (check data loss) */ - /* We don't check non ide_disk because it is limited to UDMA4 */ - if (!(in_be32((void __iomem *)hwif->io_ports.ctl_addr) - & ATA_ERR) && - drive->media == ide_disk && drive->current_speed > XFER_UDMA_4) { - reg = in_be32((void __iomem *)intsts_port); - if (!(reg & INTSTS_ACTEINT)) { - printk(KERN_WARNING "%s: operation failed (transfer data loss)\n", - drive->name); - data_loss = 1; - if (retry++) { - struct request *rq = hwif->rq; - ide_drive_t *drive; - int i; - - /* ERROR_RESET and drive->crc_count are needed - * to reduce DMA transfer mode in retry process. - */ - if (rq) - rq->errors |= ERROR_RESET; - - ide_port_for_each_dev(i, drive, hwif) - drive->crc_count++; - } - } - } - - while (1) { - reg = in_be32((void __iomem *)intsts_port); - - if (reg & INTSTS_SERROR) { - printk(KERN_WARNING "%s: SERROR\n", SCC_PATA_NAME); - out_be32((void __iomem *)intsts_port, INTSTS_SERROR|INTSTS_BMSINT); - - out_be32(dma_base, in_be32(dma_base) & ~QCHCD_IOS_SS); - continue; - } - - if (reg & INTSTS_PRERR) { - u32 maea0, maec0; - unsigned long ctl_base = hwif->config_data; - - maea0 = in_be32((void __iomem *)(ctl_base + 0xF50)); - maec0 = in_be32((void __iomem *)(ctl_base + 0xF54)); - - printk(KERN_WARNING "%s: PRERR [addr:%x cmd:%x]\n", SCC_PATA_NAME, maea0, maec0); - - out_be32((void __iomem *)intsts_port, INTSTS_PRERR|INTSTS_BMSINT); - - out_be32(dma_base, in_be32(dma_base) & ~QCHCD_IOS_SS); - continue; - } - - if (reg & INTSTS_RERR) { - printk(KERN_WARNING "%s: Response Error\n", SCC_PATA_NAME); - out_be32((void __iomem *)intsts_port, INTSTS_RERR|INTSTS_BMSINT); - - out_be32(dma_base, in_be32(dma_base) & ~QCHCD_IOS_SS); - continue; - } - - if (reg & INTSTS_ICERR) { - out_be32(dma_base, in_be32(dma_base) & ~QCHCD_IOS_SS); - - printk(KERN_WARNING "%s: Illegal Configuration\n", SCC_PATA_NAME); - out_be32((void __iomem *)intsts_port, INTSTS_ICERR|INTSTS_BMSINT); - continue; - } - - if (reg & INTSTS_BMSINT) { - printk(KERN_WARNING "%s: Internal Bus Error\n", SCC_PATA_NAME); - out_be32((void __iomem *)intsts_port, INTSTS_BMSINT); - - ide_do_reset(drive); - continue; - } - - if (reg & INTSTS_BMHE) { - out_be32((void __iomem *)intsts_port, INTSTS_BMHE); - continue; - } - - if (reg & INTSTS_ACTEINT) { - out_be32((void __iomem *)intsts_port, INTSTS_ACTEINT); - continue; - } - - if (reg & INTSTS_IOIRQS) { - out_be32((void __iomem *)intsts_port, INTSTS_IOIRQS); - continue; - } - break; - } - - dma_stat = __scc_dma_end(drive); - if (data_loss) - dma_stat |= 2; /* emulate DMA error (to retry command) */ - return dma_stat; -} - -/* returns 1 if dma irq issued, 0 otherwise */ -static int scc_dma_test_irq(ide_drive_t *drive) -{ - ide_hwif_t *hwif = drive->hwif; - u32 int_stat = in_be32((void __iomem *)hwif->dma_base + 0x014); - - /* SCC errata A252,A308 workaround: Step4 */ - if ((in_be32((void __iomem *)hwif->io_ports.ctl_addr) - & ATA_ERR) && - (int_stat & INTSTS_INTRQ)) - return 1; - - /* SCC errata A308 workaround: Step5 (polling IOIRQS) */ - if (int_stat & INTSTS_IOIRQS) - return 1; - - return 0; -} - -static u8 scc_udma_filter(ide_drive_t *drive) -{ - ide_hwif_t *hwif = drive->hwif; - u8 mask = hwif->ultra_mask; - - /* errata A308 workaround: limit non ide_disk drive to UDMA4 */ - if ((drive->media != ide_disk) && (mask & 0xE0)) { - printk(KERN_INFO "%s: limit %s to UDMA4\n", - SCC_PATA_NAME, drive->name); - mask = ATA_UDMA4; - } - - return mask; -} - -/** - * setup_mmio_scc - map CTRL/BMID region - * @dev: PCI device we are configuring - * @name: device name - * - */ - -static int setup_mmio_scc (struct pci_dev *dev, const char *name) -{ - void __iomem *ctl_addr; - void __iomem *dma_addr; - int i, ret; - - for (i = 0; i < MAX_HWIFS; i++) { - if (scc_ports[i].ctl == 0) - break; - } - if (i >= MAX_HWIFS) - return -ENOMEM; - - ret = pci_request_selected_regions(dev, (1 << 2) - 1, name); - if (ret < 0) { - printk(KERN_ERR "%s: can't reserve resources\n", name); - return ret; - } - - ctl_addr = pci_ioremap_bar(dev, 0); - if (!ctl_addr) - goto fail_0; - - dma_addr = pci_ioremap_bar(dev, 1); - if (!dma_addr) - goto fail_1; - - pci_set_master(dev); - scc_ports[i].ctl = (unsigned long)ctl_addr; - scc_ports[i].dma = (unsigned long)dma_addr; - pci_set_drvdata(dev, (void *) &scc_ports[i]); - - return 1; - - fail_1: - iounmap(ctl_addr); - fail_0: - return -ENOMEM; -} - -static int scc_ide_setup_pci_device(struct pci_dev *dev, - const struct ide_port_info *d) -{ - struct scc_ports *ports = pci_get_drvdata(dev); - struct ide_host *host; - struct ide_hw hw, *hws[] = { &hw }; - int i, rc; - - memset(&hw, 0, sizeof(hw)); - for (i = 0; i <= 8; i++) - hw.io_ports_array[i] = ports->dma + 0x20 + i * 4; - hw.irq = dev->irq; - hw.dev = &dev->dev; - - rc = ide_host_add(d, hws, 1, &host); - if (rc) - return rc; - - ports->host = host; - - return 0; -} - -/** - * init_setup_scc - set up an SCC PATA Controller - * @dev: PCI device - * @d: IDE port info - * - * Perform the initial set up for this device. - */ - -static int init_setup_scc(struct pci_dev *dev, const struct ide_port_info *d) -{ - unsigned long ctl_base; - unsigned long dma_base; - unsigned long cckctrl_port; - unsigned long intmask_port; - unsigned long mode_port; - unsigned long ecmode_port; - u32 reg = 0; - struct scc_ports *ports; - int rc; - - rc = pci_enable_device(dev); - if (rc) - goto end; - - rc = setup_mmio_scc(dev, d->name); - if (rc < 0) - goto end; - - ports = pci_get_drvdata(dev); - ctl_base = ports->ctl; - dma_base = ports->dma; - cckctrl_port = ctl_base + 0xff0; - intmask_port = dma_base + 0x010; - mode_port = ctl_base + 0x024; - ecmode_port = ctl_base + 0xf00; - - /* controller initialization */ - reg = 0; - out_be32((void*)cckctrl_port, reg); - reg |= CCKCTRL_ATACLKOEN; - out_be32((void*)cckctrl_port, reg); - reg |= CCKCTRL_LCLKEN | CCKCTRL_OCLKEN; - out_be32((void*)cckctrl_port, reg); - reg |= CCKCTRL_CRST; - out_be32((void*)cckctrl_port, reg); - - for (;;) { - reg = in_be32((void*)cckctrl_port); - if (reg & CCKCTRL_CRST) - break; - udelay(5000); - } - - reg |= CCKCTRL_ATARESET; - out_be32((void*)cckctrl_port, reg); - - out_be32((void*)ecmode_port, ECMODE_VALUE); - out_be32((void*)mode_port, MODE_JCUSFEN); - out_be32((void*)intmask_port, INTMASK_MSK); - - rc = scc_ide_setup_pci_device(dev, d); - - end: - return rc; -} - -static void scc_tf_load(ide_drive_t *drive, struct ide_taskfile *tf, u8 valid) -{ - struct ide_io_ports *io_ports = &drive->hwif->io_ports; - - if (valid & IDE_VALID_FEATURE) - scc_ide_outb(tf->feature, io_ports->feature_addr); - if (valid & IDE_VALID_NSECT) - scc_ide_outb(tf->nsect, io_ports->nsect_addr); - if (valid & IDE_VALID_LBAL) - scc_ide_outb(tf->lbal, io_ports->lbal_addr); - if (valid & IDE_VALID_LBAM) - scc_ide_outb(tf->lbam, io_ports->lbam_addr); - if (valid & IDE_VALID_LBAH) - scc_ide_outb(tf->lbah, io_ports->lbah_addr); - if (valid & IDE_VALID_DEVICE) - scc_ide_outb(tf->device, io_ports->device_addr); -} - -static void scc_tf_read(ide_drive_t *drive, struct ide_taskfile *tf, u8 valid) -{ - struct ide_io_ports *io_ports = &drive->hwif->io_ports; - - if (valid & IDE_VALID_ERROR) - tf->error = scc_ide_inb(io_ports->feature_addr); - if (valid & IDE_VALID_NSECT) - tf->nsect = scc_ide_inb(io_ports->nsect_addr); - if (valid & IDE_VALID_LBAL) - tf->lbal = scc_ide_inb(io_ports->lbal_addr); - if (valid & IDE_VALID_LBAM) - tf->lbam = scc_ide_inb(io_ports->lbam_addr); - if (valid & IDE_VALID_LBAH) - tf->lbah = scc_ide_inb(io_ports->lbah_addr); - if (valid & IDE_VALID_DEVICE) - tf->device = scc_ide_inb(io_ports->device_addr); -} - -static void scc_input_data(ide_drive_t *drive, struct ide_cmd *cmd, - void *buf, unsigned int len) -{ - unsigned long data_addr = drive->hwif->io_ports.data_addr; - - len++; - - if (drive->io_32bit) { - scc_ide_insl(data_addr, buf, len / 4); - - if ((len & 3) >= 2) - scc_ide_insw(data_addr, (u8 *)buf + (len & ~3), 1); - } else - scc_ide_insw(data_addr, buf, len / 2); -} - -static void scc_output_data(ide_drive_t *drive, struct ide_cmd *cmd, - void *buf, unsigned int len) -{ - unsigned long data_addr = drive->hwif->io_ports.data_addr; - - len++; - - if (drive->io_32bit) { - scc_ide_outsl(data_addr, buf, len / 4); - - if ((len & 3) >= 2) - scc_ide_outsw(data_addr, (u8 *)buf + (len & ~3), 1); - } else - scc_ide_outsw(data_addr, buf, len / 2); -} - -/** - * init_mmio_iops_scc - set up the iops for MMIO - * @hwif: interface to set up - * - */ - -static void init_mmio_iops_scc(ide_hwif_t *hwif) -{ - struct pci_dev *dev = to_pci_dev(hwif->dev); - struct scc_ports *ports = pci_get_drvdata(dev); - unsigned long dma_base = ports->dma; - - ide_set_hwifdata(hwif, ports); - - hwif->dma_base = dma_base; - hwif->config_data = ports->ctl; -} - -/** - * init_iops_scc - set up iops - * @hwif: interface to set up - * - * Do the basic setup for the SCC hardware interface - * and then do the MMIO setup. - */ - -static void init_iops_scc(ide_hwif_t *hwif) -{ - struct pci_dev *dev = to_pci_dev(hwif->dev); - - hwif->hwif_data = NULL; - if (pci_get_drvdata(dev) == NULL) - return; - init_mmio_iops_scc(hwif); -} - -static int scc_init_dma(ide_hwif_t *hwif, const struct ide_port_info *d) -{ - return ide_allocate_dma_engine(hwif); -} - -static u8 scc_cable_detect(ide_hwif_t *hwif) -{ - return ATA_CBL_PATA80; -} - -/** - * init_hwif_scc - set up hwif - * @hwif: interface to set up - * - * We do the basic set up of the interface structure. The SCC - * requires several custom handlers so we override the default - * ide DMA handlers appropriately. - */ - -static void init_hwif_scc(ide_hwif_t *hwif) -{ - /* PTERADD */ - out_be32((void __iomem *)(hwif->dma_base + 0x018), hwif->dmatable_dma); - - if (in_be32((void __iomem *)(hwif->config_data + 0xff0)) & CCKCTRL_ATACLKOEN) - hwif->ultra_mask = ATA_UDMA6; /* 133MHz */ - else - hwif->ultra_mask = ATA_UDMA5; /* 100MHz */ -} - -static const struct ide_tp_ops scc_tp_ops = { - .exec_command = scc_exec_command, - .read_status = scc_read_status, - .read_altstatus = scc_read_altstatus, - .write_devctl = scc_write_devctl, - - .dev_select = ide_dev_select, - .tf_load = scc_tf_load, - .tf_read = scc_tf_read, - - .input_data = scc_input_data, - .output_data = scc_output_data, -}; - -static const struct ide_port_ops scc_port_ops = { - .set_pio_mode = scc_set_pio_mode, - .set_dma_mode = scc_set_dma_mode, - .udma_filter = scc_udma_filter, - .cable_detect = scc_cable_detect, -}; - -static const struct ide_dma_ops scc_dma_ops = { - .dma_host_set = scc_dma_host_set, - .dma_setup = scc_dma_setup, - .dma_start = scc_dma_start, - .dma_end = scc_dma_end, - .dma_test_irq = scc_dma_test_irq, - .dma_lost_irq = ide_dma_lost_irq, - .dma_timer_expiry = ide_dma_sff_timer_expiry, - .dma_sff_read_status = scc_dma_sff_read_status, -}; - -static const struct ide_port_info scc_chipset = { - .name = "sccIDE", - .init_iops = init_iops_scc, - .init_dma = scc_init_dma, - .init_hwif = init_hwif_scc, - .tp_ops = &scc_tp_ops, - .port_ops = &scc_port_ops, - .dma_ops = &scc_dma_ops, - .host_flags = IDE_HFLAG_SINGLE, - .irq_flags = IRQF_SHARED, - .pio_mask = ATA_PIO4, - .chipset = ide_pci, -}; - -/** - * scc_init_one - pci layer discovery entry - * @dev: PCI device - * @id: ident table entry - * - * Called by the PCI code when it finds an SCC PATA controller. - * We then use the IDE PCI generic helper to do most of the work. - */ - -static int scc_init_one(struct pci_dev *dev, const struct pci_device_id *id) -{ - return init_setup_scc(dev, &scc_chipset); -} - -/** - * scc_remove - pci layer remove entry - * @dev: PCI device - * - * Called by the PCI code when it removes an SCC PATA controller. - */ - -static void scc_remove(struct pci_dev *dev) -{ - struct scc_ports *ports = pci_get_drvdata(dev); - struct ide_host *host = ports->host; - - ide_host_remove(host); - - iounmap((void*)ports->dma); - iounmap((void*)ports->ctl); - pci_release_selected_regions(dev, (1 << 2) - 1); - memset(ports, 0, sizeof(*ports)); -} - -static const struct pci_device_id scc_pci_tbl[] = { - { PCI_VDEVICE(TOSHIBA_2, PCI_DEVICE_ID_TOSHIBA_SCC_ATA), 0 }, - { 0, }, -}; -MODULE_DEVICE_TABLE(pci, scc_pci_tbl); - -static struct pci_driver scc_pci_driver = { - .name = "SCC IDE", - .id_table = scc_pci_tbl, - .probe = scc_init_one, - .remove = scc_remove, -}; - -static int __init scc_ide_init(void) -{ - return ide_pci_register_driver(&scc_pci_driver); -} - -static void __exit scc_ide_exit(void) -{ - pci_unregister_driver(&scc_pci_driver); -} - -module_init(scc_ide_init); -module_exit(scc_ide_exit); - -MODULE_DESCRIPTION("PCI driver module for Toshiba SCC IDE"); -MODULE_LICENSE("GPL"); diff --git a/drivers/iommu/amd_iommu_v2.c b/drivers/iommu/amd_iommu_v2.c index a1cbba9056fd..3465faf1809e 100644 --- a/drivers/iommu/amd_iommu_v2.c +++ b/drivers/iommu/amd_iommu_v2.c @@ -266,6 +266,7 @@ static void put_pasid_state(struct pasid_state *pasid_state) static void put_pasid_state_wait(struct pasid_state *pasid_state) { + atomic_dec(&pasid_state->count); wait_event(pasid_state->wq, !atomic_read(&pasid_state->count)); free_pasid_state(pasid_state); } diff --git a/drivers/iommu/arm-smmu.c b/drivers/iommu/arm-smmu.c index 9f7e1d34a32b..66a803b9dd3a 100644 --- a/drivers/iommu/arm-smmu.c +++ b/drivers/iommu/arm-smmu.c @@ -224,14 +224,7 @@ #define RESUME_TERMINATE (1 << 0) #define TTBCR2_SEP_SHIFT 15 -#define TTBCR2_SEP_MASK 0x7 - -#define TTBCR2_ADDR_32 0 -#define TTBCR2_ADDR_36 1 -#define TTBCR2_ADDR_40 2 -#define TTBCR2_ADDR_42 3 -#define TTBCR2_ADDR_44 4 -#define TTBCR2_ADDR_48 5 +#define TTBCR2_SEP_UPSTREAM (0x7 << TTBCR2_SEP_SHIFT) #define TTBRn_HI_ASID_SHIFT 16 @@ -793,26 +786,7 @@ static void arm_smmu_init_context_bank(struct arm_smmu_domain *smmu_domain, writel_relaxed(reg, cb_base + ARM_SMMU_CB_TTBCR); if (smmu->version > ARM_SMMU_V1) { reg = pgtbl_cfg->arm_lpae_s1_cfg.tcr >> 32; - switch (smmu->va_size) { - case 32: - reg |= (TTBCR2_ADDR_32 << TTBCR2_SEP_SHIFT); - break; - case 36: - reg |= (TTBCR2_ADDR_36 << TTBCR2_SEP_SHIFT); - break; - case 40: - reg |= (TTBCR2_ADDR_40 << TTBCR2_SEP_SHIFT); - break; - case 42: - reg |= (TTBCR2_ADDR_42 << TTBCR2_SEP_SHIFT); - break; - case 44: - reg |= (TTBCR2_ADDR_44 << TTBCR2_SEP_SHIFT); - break; - case 48: - reg |= (TTBCR2_ADDR_48 << TTBCR2_SEP_SHIFT); - break; - } + reg |= TTBCR2_SEP_UPSTREAM; writel_relaxed(reg, cb_base + ARM_SMMU_CB_TTBCR2); } } else { diff --git a/drivers/iommu/rockchip-iommu.c b/drivers/iommu/rockchip-iommu.c index 4015560bf486..cab214544237 100644 --- a/drivers/iommu/rockchip-iommu.c +++ b/drivers/iommu/rockchip-iommu.c @@ -1004,20 +1004,18 @@ static int rk_iommu_remove(struct platform_device *pdev) return 0; } -#ifdef CONFIG_OF static const struct of_device_id rk_iommu_dt_ids[] = { { .compatible = "rockchip,iommu" }, { /* sentinel */ } }; MODULE_DEVICE_TABLE(of, rk_iommu_dt_ids); -#endif static struct platform_driver rk_iommu_driver = { .probe = rk_iommu_probe, .remove = rk_iommu_remove, .driver = { .name = "rk_iommu", - .of_match_table = of_match_ptr(rk_iommu_dt_ids), + .of_match_table = rk_iommu_dt_ids, }, }; diff --git a/drivers/irqchip/irq-gic.c b/drivers/irqchip/irq-gic.c index 7b315e385ba3..01999d74bd3a 100644 --- a/drivers/irqchip/irq-gic.c +++ b/drivers/irqchip/irq-gic.c @@ -82,19 +82,6 @@ static DEFINE_RAW_SPINLOCK(irq_controller_lock); #define NR_GIC_CPU_IF 8 static u8 gic_cpu_map[NR_GIC_CPU_IF] __read_mostly; -/* - * Supported arch specific GIC irq extension. - * Default make them NULL. - */ -struct irq_chip gic_arch_extn = { - .irq_eoi = NULL, - .irq_mask = NULL, - .irq_unmask = NULL, - .irq_retrigger = NULL, - .irq_set_type = NULL, - .irq_set_wake = NULL, -}; - #ifndef MAX_GIC_NR #define MAX_GIC_NR 1 #endif @@ -167,34 +154,16 @@ static int gic_peek_irq(struct irq_data *d, u32 offset) static void gic_mask_irq(struct irq_data *d) { - unsigned long flags; - - raw_spin_lock_irqsave(&irq_controller_lock, flags); gic_poke_irq(d, GIC_DIST_ENABLE_CLEAR); - if (gic_arch_extn.irq_mask) - gic_arch_extn.irq_mask(d); - raw_spin_unlock_irqrestore(&irq_controller_lock, flags); } static void gic_unmask_irq(struct irq_data *d) { - unsigned long flags; - - raw_spin_lock_irqsave(&irq_controller_lock, flags); - if (gic_arch_extn.irq_unmask) - gic_arch_extn.irq_unmask(d); gic_poke_irq(d, GIC_DIST_ENABLE_SET); - raw_spin_unlock_irqrestore(&irq_controller_lock, flags); } static void gic_eoi_irq(struct irq_data *d) { - if (gic_arch_extn.irq_eoi) { - raw_spin_lock(&irq_controller_lock); - gic_arch_extn.irq_eoi(d); - raw_spin_unlock(&irq_controller_lock); - } - writel_relaxed(gic_irq(d), gic_cpu_base(d) + GIC_CPU_EOI); } @@ -251,8 +220,6 @@ static int gic_set_type(struct irq_data *d, unsigned int type) { void __iomem *base = gic_dist_base(d); unsigned int gicirq = gic_irq(d); - unsigned long flags; - int ret; /* Interrupt configuration for SGIs can't be changed */ if (gicirq < 16) @@ -263,25 +230,7 @@ static int gic_set_type(struct irq_data *d, unsigned int type) type != IRQ_TYPE_EDGE_RISING) return -EINVAL; - raw_spin_lock_irqsave(&irq_controller_lock, flags); - - if (gic_arch_extn.irq_set_type) - gic_arch_extn.irq_set_type(d, type); - - ret = gic_configure_irq(gicirq, type, base, NULL); - - raw_spin_unlock_irqrestore(&irq_controller_lock, flags); - - return ret; -} - -static int gic_retrigger(struct irq_data *d) -{ - if (gic_arch_extn.irq_retrigger) - return gic_arch_extn.irq_retrigger(d); - - /* the genirq layer expects 0 if we can't retrigger in hardware */ - return 0; + return gic_configure_irq(gicirq, type, base, NULL); } #ifdef CONFIG_SMP @@ -312,21 +261,6 @@ static int gic_set_affinity(struct irq_data *d, const struct cpumask *mask_val, } #endif -#ifdef CONFIG_PM -static int gic_set_wake(struct irq_data *d, unsigned int on) -{ - int ret = -ENXIO; - - if (gic_arch_extn.irq_set_wake) - ret = gic_arch_extn.irq_set_wake(d, on); - - return ret; -} - -#else -#define gic_set_wake NULL -#endif - static void __exception_irq_entry gic_handle_irq(struct pt_regs *regs) { u32 irqstat, irqnr; @@ -385,11 +319,9 @@ static struct irq_chip gic_chip = { .irq_unmask = gic_unmask_irq, .irq_eoi = gic_eoi_irq, .irq_set_type = gic_set_type, - .irq_retrigger = gic_retrigger, #ifdef CONFIG_SMP .irq_set_affinity = gic_set_affinity, #endif - .irq_set_wake = gic_set_wake, .irq_get_irqchip_state = gic_irq_get_irqchip_state, .irq_set_irqchip_state = gic_irq_set_irqchip_state, }; @@ -1055,7 +987,6 @@ void __init gic_init_bases(unsigned int gic_nr, int irq_start, set_handle_irq(gic_handle_irq); } - gic_chip.flags |= gic_arch_extn.flags; gic_dist_init(gic); gic_cpu_init(gic); gic_pm_init(gic); diff --git a/drivers/md/dm-crypt.c b/drivers/md/dm-crypt.c index 9eeea196328a..5503e43e5f28 100644 --- a/drivers/md/dm-crypt.c +++ b/drivers/md/dm-crypt.c @@ -925,10 +925,11 @@ static int crypt_convert(struct crypt_config *cc, switch (r) { /* async */ - case -EINPROGRESS: case -EBUSY: wait_for_completion(&ctx->restart); reinit_completion(&ctx->restart); + /* fall through*/ + case -EINPROGRESS: ctx->req = NULL; ctx->cc_sector++; continue; @@ -1345,8 +1346,10 @@ static void kcryptd_async_done(struct crypto_async_request *async_req, struct dm_crypt_io *io = container_of(ctx, struct dm_crypt_io, ctx); struct crypt_config *cc = io->cc; - if (error == -EINPROGRESS) + if (error == -EINPROGRESS) { + complete(&ctx->restart); return; + } if (!error && cc->iv_gen_ops && cc->iv_gen_ops->post) error = cc->iv_gen_ops->post(cc, iv_of_dmreq(cc, dmreq), dmreq); @@ -1357,15 +1360,12 @@ static void kcryptd_async_done(struct crypto_async_request *async_req, crypt_free_req(cc, req_of_dmreq(cc, dmreq), io->base_bio); if (!atomic_dec_and_test(&ctx->cc_pending)) - goto done; + return; if (bio_data_dir(io->base_bio) == READ) kcryptd_crypt_read_done(io); else kcryptd_crypt_write_io_submit(io, 1); -done: - if (!completion_done(&ctx->restart)) - complete(&ctx->restart); } static void kcryptd_crypt(struct work_struct *work) diff --git a/drivers/md/md.c b/drivers/md/md.c index d4f31e195e26..593a02476c78 100644 --- a/drivers/md/md.c +++ b/drivers/md/md.c @@ -4818,12 +4818,12 @@ static void md_free(struct kobject *ko) if (mddev->sysfs_state) sysfs_put(mddev->sysfs_state); + if (mddev->queue) + blk_cleanup_queue(mddev->queue); if (mddev->gendisk) { del_gendisk(mddev->gendisk); put_disk(mddev->gendisk); } - if (mddev->queue) - blk_cleanup_queue(mddev->queue); kfree(mddev); } diff --git a/drivers/md/raid0.c b/drivers/md/raid0.c index 2cb59a641cd2..6a68ef5246d4 100644 --- a/drivers/md/raid0.c +++ b/drivers/md/raid0.c @@ -188,8 +188,9 @@ static int create_strip_zones(struct mddev *mddev, struct r0conf **private_conf) } dev[j] = rdev1; - disk_stack_limits(mddev->gendisk, rdev1->bdev, - rdev1->data_offset << 9); + if (mddev->queue) + disk_stack_limits(mddev->gendisk, rdev1->bdev, + rdev1->data_offset << 9); if (rdev1->bdev->bd_disk->queue->merge_bvec_fn) conf->has_merge_bvec = 1; diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c index 77dfd720aaa0..1ba97fdc6df1 100644 --- a/drivers/md/raid5.c +++ b/drivers/md/raid5.c @@ -1078,9 +1078,6 @@ again: pr_debug("skip op %ld on disc %d for sector %llu\n", bi->bi_rw, i, (unsigned long long)sh->sector); clear_bit(R5_LOCKED, &sh->dev[i].flags); - if (sh->batch_head) - set_bit(STRIPE_BATCH_ERR, - &sh->batch_head->state); set_bit(STRIPE_HANDLE, &sh->state); } @@ -1971,17 +1968,30 @@ static void raid_run_ops(struct stripe_head *sh, unsigned long ops_request) put_cpu(); } +static struct stripe_head *alloc_stripe(struct kmem_cache *sc, gfp_t gfp) +{ + struct stripe_head *sh; + + sh = kmem_cache_zalloc(sc, gfp); + if (sh) { + spin_lock_init(&sh->stripe_lock); + spin_lock_init(&sh->batch_lock); + INIT_LIST_HEAD(&sh->batch_list); + INIT_LIST_HEAD(&sh->lru); + atomic_set(&sh->count, 1); + } + return sh; +} static int grow_one_stripe(struct r5conf *conf, gfp_t gfp) { struct stripe_head *sh; - sh = kmem_cache_zalloc(conf->slab_cache, gfp); + + sh = alloc_stripe(conf->slab_cache, gfp); if (!sh) return 0; sh->raid_conf = conf; - spin_lock_init(&sh->stripe_lock); - if (grow_buffers(sh, gfp)) { shrink_buffers(sh); kmem_cache_free(conf->slab_cache, sh); @@ -1990,13 +2000,8 @@ static int grow_one_stripe(struct r5conf *conf, gfp_t gfp) sh->hash_lock_index = conf->max_nr_stripes % NR_STRIPE_HASH_LOCKS; /* we just created an active stripe so... */ - atomic_set(&sh->count, 1); atomic_inc(&conf->active_stripes); - INIT_LIST_HEAD(&sh->lru); - spin_lock_init(&sh->batch_lock); - INIT_LIST_HEAD(&sh->batch_list); - sh->batch_head = NULL; release_stripe(sh); conf->max_nr_stripes++; return 1; @@ -2060,6 +2065,35 @@ static struct flex_array *scribble_alloc(int num, int cnt, gfp_t flags) return ret; } +static int resize_chunks(struct r5conf *conf, int new_disks, int new_sectors) +{ + unsigned long cpu; + int err = 0; + + mddev_suspend(conf->mddev); + get_online_cpus(); + for_each_present_cpu(cpu) { + struct raid5_percpu *percpu; + struct flex_array *scribble; + + percpu = per_cpu_ptr(conf->percpu, cpu); + scribble = scribble_alloc(new_disks, + new_sectors / STRIPE_SECTORS, + GFP_NOIO); + + if (scribble) { + flex_array_free(percpu->scribble); + percpu->scribble = scribble; + } else { + err = -ENOMEM; + break; + } + } + put_online_cpus(); + mddev_resume(conf->mddev); + return err; +} + static int resize_stripes(struct r5conf *conf, int newsize) { /* Make all the stripes able to hold 'newsize' devices. @@ -2088,7 +2122,6 @@ static int resize_stripes(struct r5conf *conf, int newsize) struct stripe_head *osh, *nsh; LIST_HEAD(newstripes); struct disk_info *ndisks; - unsigned long cpu; int err; struct kmem_cache *sc; int i; @@ -2109,13 +2142,11 @@ static int resize_stripes(struct r5conf *conf, int newsize) return -ENOMEM; for (i = conf->max_nr_stripes; i; i--) { - nsh = kmem_cache_zalloc(sc, GFP_KERNEL); + nsh = alloc_stripe(sc, GFP_KERNEL); if (!nsh) break; nsh->raid_conf = conf; - spin_lock_init(&nsh->stripe_lock); - list_add(&nsh->lru, &newstripes); } if (i) { @@ -2142,13 +2173,11 @@ static int resize_stripes(struct r5conf *conf, int newsize) lock_device_hash_lock(conf, hash)); osh = get_free_stripe(conf, hash); unlock_device_hash_lock(conf, hash); - atomic_set(&nsh->count, 1); + for(i=0; i<conf->pool_size; i++) { nsh->dev[i].page = osh->dev[i].page; nsh->dev[i].orig_page = osh->dev[i].page; } - for( ; i<newsize; i++) - nsh->dev[i].page = NULL; nsh->hash_lock_index = hash; kmem_cache_free(conf->slab_cache, osh); cnt++; @@ -2174,25 +2203,6 @@ static int resize_stripes(struct r5conf *conf, int newsize) } else err = -ENOMEM; - get_online_cpus(); - for_each_present_cpu(cpu) { - struct raid5_percpu *percpu; - struct flex_array *scribble; - - percpu = per_cpu_ptr(conf->percpu, cpu); - scribble = scribble_alloc(newsize, conf->chunk_sectors / - STRIPE_SECTORS, GFP_NOIO); - - if (scribble) { - flex_array_free(percpu->scribble); - percpu->scribble = scribble; - } else { - err = -ENOMEM; - break; - } - } - put_online_cpus(); - /* Step 4, return new stripes to service */ while(!list_empty(&newstripes)) { nsh = list_entry(newstripes.next, struct stripe_head, lru); @@ -2212,7 +2222,8 @@ static int resize_stripes(struct r5conf *conf, int newsize) conf->slab_cache = sc; conf->active_name = 1-conf->active_name; - conf->pool_size = newsize; + if (!err) + conf->pool_size = newsize; return err; } @@ -2434,7 +2445,7 @@ static void raid5_end_write_request(struct bio *bi, int error) } rdev_dec_pending(rdev, conf->mddev); - if (sh->batch_head && !uptodate) + if (sh->batch_head && !uptodate && !replacement) set_bit(STRIPE_BATCH_ERR, &sh->batch_head->state); if (!test_and_clear_bit(R5_DOUBLE_LOCKED, &sh->dev[i].flags)) @@ -3278,7 +3289,9 @@ static int need_this_block(struct stripe_head *sh, struct stripe_head_state *s, /* reconstruct-write isn't being forced */ return 0; for (i = 0; i < s->failed; i++) { - if (!test_bit(R5_UPTODATE, &fdev[i]->flags) && + if (s->failed_num[i] != sh->pd_idx && + s->failed_num[i] != sh->qd_idx && + !test_bit(R5_UPTODATE, &fdev[i]->flags) && !test_bit(R5_OVERWRITE, &fdev[i]->flags)) return 1; } @@ -3298,6 +3311,7 @@ static int fetch_block(struct stripe_head *sh, struct stripe_head_state *s, */ BUG_ON(test_bit(R5_Wantcompute, &dev->flags)); BUG_ON(test_bit(R5_Wantread, &dev->flags)); + BUG_ON(sh->batch_head); if ((s->uptodate == disks - 1) && (s->failed && (disk_idx == s->failed_num[0] || disk_idx == s->failed_num[1]))) { @@ -3366,7 +3380,6 @@ static void handle_stripe_fill(struct stripe_head *sh, { int i; - BUG_ON(sh->batch_head); /* look for blocks to read/compute, skip this if a compute * is already in flight, or if the stripe contents are in the * midst of changing due to a write @@ -4198,15 +4211,9 @@ static void check_break_stripe_batch_list(struct stripe_head *sh) return; head_sh = sh; - do { - sh = list_first_entry(&sh->batch_list, - struct stripe_head, batch_list); - BUG_ON(sh == head_sh); - } while (!test_bit(STRIPE_DEGRADED, &sh->state)); - while (sh != head_sh) { - next = list_first_entry(&sh->batch_list, - struct stripe_head, batch_list); + list_for_each_entry_safe(sh, next, &head_sh->batch_list, batch_list) { + list_del_init(&sh->batch_list); set_mask_bits(&sh->state, ~STRIPE_EXPAND_SYNC_FLAG, @@ -4226,8 +4233,6 @@ static void check_break_stripe_batch_list(struct stripe_head *sh) set_bit(STRIPE_HANDLE, &sh->state); release_stripe(sh); - - sh = next; } } @@ -6221,8 +6226,11 @@ static int alloc_scratch_buffer(struct r5conf *conf, struct raid5_percpu *percpu percpu->spare_page = alloc_page(GFP_KERNEL); if (!percpu->scribble) percpu->scribble = scribble_alloc(max(conf->raid_disks, - conf->previous_raid_disks), conf->chunk_sectors / - STRIPE_SECTORS, GFP_KERNEL); + conf->previous_raid_disks), + max(conf->chunk_sectors, + conf->prev_chunk_sectors) + / STRIPE_SECTORS, + GFP_KERNEL); if (!percpu->scribble || (conf->level == 6 && !percpu->spare_page)) { free_scratch_buffer(conf, percpu); @@ -7198,6 +7206,15 @@ static int check_reshape(struct mddev *mddev) if (!check_stripe_cache(mddev)) return -ENOSPC; + if (mddev->new_chunk_sectors > mddev->chunk_sectors || + mddev->delta_disks > 0) + if (resize_chunks(conf, + conf->previous_raid_disks + + max(0, mddev->delta_disks), + max(mddev->new_chunk_sectors, + mddev->chunk_sectors) + ) < 0) + return -ENOMEM; return resize_stripes(conf, (conf->previous_raid_disks + mddev->delta_disks)); } diff --git a/drivers/media/platform/marvell-ccic/mcam-core.c b/drivers/media/platform/marvell-ccic/mcam-core.c index 9c64b5d01c6a..110fd70c7326 100644 --- a/drivers/media/platform/marvell-ccic/mcam-core.c +++ b/drivers/media/platform/marvell-ccic/mcam-core.c @@ -116,8 +116,8 @@ static struct mcam_format_struct { .planar = false, }, { - .desc = "UYVY 4:2:2", - .pixelformat = V4L2_PIX_FMT_UYVY, + .desc = "YVYU 4:2:2", + .pixelformat = V4L2_PIX_FMT_YVYU, .mbus_code = MEDIA_BUS_FMT_YUYV8_2X8, .bpp = 2, .planar = false, @@ -748,7 +748,7 @@ static void mcam_ctlr_image(struct mcam_camera *cam) switch (fmt->pixelformat) { case V4L2_PIX_FMT_YUYV: - case V4L2_PIX_FMT_UYVY: + case V4L2_PIX_FMT_YVYU: widthy = fmt->width * 2; widthuv = 0; break; @@ -784,15 +784,15 @@ static void mcam_ctlr_image(struct mcam_camera *cam) case V4L2_PIX_FMT_YUV420: case V4L2_PIX_FMT_YVU420: mcam_reg_write_mask(cam, REG_CTRL0, - C0_DF_YUV | C0_YUV_420PL | C0_YUVE_YVYU, C0_DF_MASK); + C0_DF_YUV | C0_YUV_420PL | C0_YUVE_VYUY, C0_DF_MASK); break; case V4L2_PIX_FMT_YUYV: mcam_reg_write_mask(cam, REG_CTRL0, - C0_DF_YUV | C0_YUV_PACKED | C0_YUVE_UYVY, C0_DF_MASK); + C0_DF_YUV | C0_YUV_PACKED | C0_YUVE_NOSWAP, C0_DF_MASK); break; - case V4L2_PIX_FMT_UYVY: + case V4L2_PIX_FMT_YVYU: mcam_reg_write_mask(cam, REG_CTRL0, - C0_DF_YUV | C0_YUV_PACKED | C0_YUVE_YUYV, C0_DF_MASK); + C0_DF_YUV | C0_YUV_PACKED | C0_YUVE_SWAP24, C0_DF_MASK); break; case V4L2_PIX_FMT_JPEG: mcam_reg_write_mask(cam, REG_CTRL0, diff --git a/drivers/media/platform/marvell-ccic/mcam-core.h b/drivers/media/platform/marvell-ccic/mcam-core.h index aa0c6eac254a..7ffdf4dbaf8c 100644 --- a/drivers/media/platform/marvell-ccic/mcam-core.h +++ b/drivers/media/platform/marvell-ccic/mcam-core.h @@ -330,10 +330,10 @@ int mccic_resume(struct mcam_camera *cam); #define C0_YUVE_YVYU 0x00010000 /* Y1CrY0Cb */ #define C0_YUVE_VYUY 0x00020000 /* CrY1CbY0 */ #define C0_YUVE_UYVY 0x00030000 /* CbY1CrY0 */ -#define C0_YUVE_XYUV 0x00000000 /* 420: .YUV */ -#define C0_YUVE_XYVU 0x00010000 /* 420: .YVU */ -#define C0_YUVE_XUVY 0x00020000 /* 420: .UVY */ -#define C0_YUVE_XVUY 0x00030000 /* 420: .VUY */ +#define C0_YUVE_NOSWAP 0x00000000 /* no bytes swapping */ +#define C0_YUVE_SWAP13 0x00010000 /* swap byte 1 and 3 */ +#define C0_YUVE_SWAP24 0x00020000 /* swap byte 2 and 4 */ +#define C0_YUVE_SWAP1324 0x00030000 /* swap bytes 1&3 and 2&4 */ /* Bayer bits 18,19 if needed */ #define C0_EOF_VSYNC 0x00400000 /* Generate EOF by VSYNC */ #define C0_VEDGE_CTRL 0x00800000 /* Detect falling edge of VSYNC */ diff --git a/drivers/media/platform/soc_camera/rcar_vin.c b/drivers/media/platform/soc_camera/rcar_vin.c index 9351f64dee7b..6460f8e1b07f 100644 --- a/drivers/media/platform/soc_camera/rcar_vin.c +++ b/drivers/media/platform/soc_camera/rcar_vin.c @@ -135,6 +135,8 @@ #define VIN_MAX_WIDTH 2048 #define VIN_MAX_HEIGHT 2048 +#define TIMEOUT_MS 100 + enum chip_id { RCAR_GEN2, RCAR_H1, @@ -820,7 +822,10 @@ static void rcar_vin_wait_stop_streaming(struct rcar_vin_priv *priv) if (priv->state == STOPPING) { priv->request_to_stop = true; spin_unlock_irq(&priv->lock); - wait_for_completion(&priv->capture_stop); + if (!wait_for_completion_timeout( + &priv->capture_stop, + msecs_to_jiffies(TIMEOUT_MS))) + priv->state = STOPPED; spin_lock_irq(&priv->lock); } } diff --git a/drivers/mmc/card/block.c b/drivers/mmc/card/block.c index 2c25271f8c41..60f7141a6b02 100644 --- a/drivers/mmc/card/block.c +++ b/drivers/mmc/card/block.c @@ -1029,6 +1029,18 @@ static inline void mmc_blk_reset_success(struct mmc_blk_data *md, int type) md->reset_done &= ~type; } +int mmc_access_rpmb(struct mmc_queue *mq) +{ + struct mmc_blk_data *md = mq->data; + /* + * If this is a RPMB partition access, return ture + */ + if (md && md->part_type == EXT_CSD_PART_CONFIG_ACC_RPMB) + return true; + + return false; +} + static int mmc_blk_issue_discard_rq(struct mmc_queue *mq, struct request *req) { struct mmc_blk_data *md = mq->data; diff --git a/drivers/mmc/card/queue.c b/drivers/mmc/card/queue.c index 236d194c2883..8efa3684aef8 100644 --- a/drivers/mmc/card/queue.c +++ b/drivers/mmc/card/queue.c @@ -38,7 +38,7 @@ static int mmc_prep_request(struct request_queue *q, struct request *req) return BLKPREP_KILL; } - if (mq && mmc_card_removed(mq->card)) + if (mq && (mmc_card_removed(mq->card) || mmc_access_rpmb(mq))) return BLKPREP_KILL; req->cmd_flags |= REQ_DONTPREP; diff --git a/drivers/mmc/card/queue.h b/drivers/mmc/card/queue.h index 5752d50049a3..99e6521e6169 100644 --- a/drivers/mmc/card/queue.h +++ b/drivers/mmc/card/queue.h @@ -73,4 +73,6 @@ extern void mmc_queue_bounce_post(struct mmc_queue_req *); extern int mmc_packed_init(struct mmc_queue *, struct mmc_card *); extern void mmc_packed_clean(struct mmc_queue *); +extern int mmc_access_rpmb(struct mmc_queue *); + #endif diff --git a/drivers/mmc/core/core.c b/drivers/mmc/core/core.c index c296bc098fe2..92e7671426eb 100644 --- a/drivers/mmc/core/core.c +++ b/drivers/mmc/core/core.c @@ -2651,6 +2651,7 @@ int mmc_pm_notify(struct notifier_block *notify_block, switch (mode) { case PM_HIBERNATION_PREPARE: case PM_SUSPEND_PREPARE: + case PM_RESTORE_PREPARE: spin_lock_irqsave(&host->lock, flags); host->rescan_disable = 1; spin_unlock_irqrestore(&host->lock, flags); diff --git a/drivers/mmc/host/dw_mmc.c b/drivers/mmc/host/dw_mmc.c index 38b29265cc7c..5f5adafb253a 100644 --- a/drivers/mmc/host/dw_mmc.c +++ b/drivers/mmc/host/dw_mmc.c @@ -589,9 +589,11 @@ static int dw_mci_idmac_init(struct dw_mci *host) host->ring_size = PAGE_SIZE / sizeof(struct idmac_desc); /* Forward link the descriptor list */ - for (i = 0, p = host->sg_cpu; i < host->ring_size - 1; i++, p++) + for (i = 0, p = host->sg_cpu; i < host->ring_size - 1; i++, p++) { p->des3 = cpu_to_le32(host->sg_dma + (sizeof(struct idmac_desc) * (i + 1))); + p->des1 = 0; + } /* Set the last descriptor as the end-of-ring descriptor */ p->des3 = cpu_to_le32(host->sg_dma); @@ -1300,7 +1302,8 @@ static int dw_mci_get_cd(struct mmc_host *mmc) int gpio_cd = mmc_gpio_get_cd(mmc); /* Use platform get_cd function, else try onboard card detect */ - if (brd->quirks & DW_MCI_QUIRK_BROKEN_CARD_DETECTION) + if ((brd->quirks & DW_MCI_QUIRK_BROKEN_CARD_DETECTION) || + (mmc->caps & MMC_CAP_NONREMOVABLE)) present = 1; else if (!IS_ERR_VALUE(gpio_cd)) present = gpio_cd; diff --git a/drivers/mmc/host/sh_mmcif.c b/drivers/mmc/host/sh_mmcif.c index 2b6ef6bd5d5f..7eff087cf515 100644 --- a/drivers/mmc/host/sh_mmcif.c +++ b/drivers/mmc/host/sh_mmcif.c @@ -1408,7 +1408,7 @@ static int sh_mmcif_probe(struct platform_device *pdev) host = mmc_priv(mmc); host->mmc = mmc; host->addr = reg; - host->timeout = msecs_to_jiffies(1000); + host->timeout = msecs_to_jiffies(10000); host->ccs_enable = !pd || !pd->ccs_unsupported; host->clk_ctrl2_enable = pd && pd->clk_ctrl2_present; diff --git a/drivers/pinctrl/core.c b/drivers/pinctrl/core.c index 89dca77ca038..18ee2089df4a 100644 --- a/drivers/pinctrl/core.c +++ b/drivers/pinctrl/core.c @@ -1110,7 +1110,7 @@ void devm_pinctrl_put(struct pinctrl *p) EXPORT_SYMBOL_GPL(devm_pinctrl_put); int pinctrl_register_map(struct pinctrl_map const *maps, unsigned num_maps, - bool dup, bool locked) + bool dup) { int i, ret; struct pinctrl_maps *maps_node; @@ -1178,11 +1178,9 @@ int pinctrl_register_map(struct pinctrl_map const *maps, unsigned num_maps, maps_node->maps = maps; } - if (!locked) - mutex_lock(&pinctrl_maps_mutex); + mutex_lock(&pinctrl_maps_mutex); list_add_tail(&maps_node->node, &pinctrl_maps); - if (!locked) - mutex_unlock(&pinctrl_maps_mutex); + mutex_unlock(&pinctrl_maps_mutex); return 0; } @@ -1197,7 +1195,7 @@ int pinctrl_register_map(struct pinctrl_map const *maps, unsigned num_maps, int pinctrl_register_mappings(struct pinctrl_map const *maps, unsigned num_maps) { - return pinctrl_register_map(maps, num_maps, true, false); + return pinctrl_register_map(maps, num_maps, true); } void pinctrl_unregister_map(struct pinctrl_map const *map) diff --git a/drivers/pinctrl/core.h b/drivers/pinctrl/core.h index 75476b3d87da..b24ea846c867 100644 --- a/drivers/pinctrl/core.h +++ b/drivers/pinctrl/core.h @@ -183,7 +183,7 @@ static inline struct pin_desc *pin_desc_get(struct pinctrl_dev *pctldev, } int pinctrl_register_map(struct pinctrl_map const *maps, unsigned num_maps, - bool dup, bool locked); + bool dup); void pinctrl_unregister_map(struct pinctrl_map const *map); extern int pinctrl_force_sleep(struct pinctrl_dev *pctldev); diff --git a/drivers/pinctrl/devicetree.c b/drivers/pinctrl/devicetree.c index eda13de2e7c0..0bbf7d71b281 100644 --- a/drivers/pinctrl/devicetree.c +++ b/drivers/pinctrl/devicetree.c @@ -92,7 +92,7 @@ static int dt_remember_or_free_map(struct pinctrl *p, const char *statename, dt_map->num_maps = num_maps; list_add_tail(&dt_map->node, &p->dt_maps); - return pinctrl_register_map(map, num_maps, false, true); + return pinctrl_register_map(map, num_maps, false); } struct pinctrl_dev *of_pinctrl_get(struct device_node *np) diff --git a/drivers/pinctrl/mediatek/pinctrl-mtk-common.c b/drivers/pinctrl/mediatek/pinctrl-mtk-common.c index 493294c0ebe6..474812e2b0cb 100644 --- a/drivers/pinctrl/mediatek/pinctrl-mtk-common.c +++ b/drivers/pinctrl/mediatek/pinctrl-mtk-common.c @@ -881,6 +881,8 @@ static int mtk_gpio_set_debounce(struct gpio_chip *chip, unsigned offset, if (!mtk_eint_get_mask(pctl, eint_num)) { mtk_eint_mask(d); unmask = 1; + } else { + unmask = 0; } clr_bit = 0xff << eint_offset; diff --git a/drivers/pinctrl/mvebu/pinctrl-armada-370.c b/drivers/pinctrl/mvebu/pinctrl-armada-370.c index 42f930f70de3..03aa58c4cb85 100644 --- a/drivers/pinctrl/mvebu/pinctrl-armada-370.c +++ b/drivers/pinctrl/mvebu/pinctrl-armada-370.c @@ -364,7 +364,7 @@ static struct mvebu_mpp_mode mv88f6710_mpp_modes[] = { MPP_FUNCTION(0x5, "audio", "mclk"), MPP_FUNCTION(0x6, "uart0", "cts")), MPP_MODE(63, - MPP_FUNCTION(0x0, "gpo", NULL), + MPP_FUNCTION(0x0, "gpio", NULL), MPP_FUNCTION(0x1, "spi0", "sck"), MPP_FUNCTION(0x2, "tclk", NULL)), MPP_MODE(64, diff --git a/drivers/pinctrl/qcom/pinctrl-spmi-gpio.c b/drivers/pinctrl/qcom/pinctrl-spmi-gpio.c index b2d22218a258..ae4115e4b4ef 100644 --- a/drivers/pinctrl/qcom/pinctrl-spmi-gpio.c +++ b/drivers/pinctrl/qcom/pinctrl-spmi-gpio.c @@ -260,6 +260,7 @@ static int pmic_gpio_set_mux(struct pinctrl_dev *pctldev, unsigned function, val = 1; } + val = val << PMIC_GPIO_REG_MODE_DIR_SHIFT; val |= pad->function << PMIC_GPIO_REG_MODE_FUNCTION_SHIFT; val |= pad->out_value & PMIC_GPIO_REG_MODE_VALUE_SHIFT; @@ -417,7 +418,7 @@ static int pmic_gpio_config_set(struct pinctrl_dev *pctldev, unsigned int pin, return ret; val = pad->buffer_type << PMIC_GPIO_REG_OUT_TYPE_SHIFT; - val = pad->strength << PMIC_GPIO_REG_OUT_STRENGTH_SHIFT; + val |= pad->strength << PMIC_GPIO_REG_OUT_STRENGTH_SHIFT; ret = pmic_gpio_write(state, pad, PMIC_GPIO_REG_DIG_OUT_CTL, val); if (ret < 0) @@ -466,12 +467,13 @@ static void pmic_gpio_config_dbg_show(struct pinctrl_dev *pctldev, seq_puts(s, " ---"); } else { - if (!pad->input_enabled) { + if (pad->input_enabled) { ret = pmic_gpio_read(state, pad, PMIC_MPP_REG_RT_STS); - if (!ret) { - ret &= PMIC_MPP_REG_RT_STS_VAL_MASK; - pad->out_value = ret; - } + if (ret < 0) + return; + + ret &= PMIC_MPP_REG_RT_STS_VAL_MASK; + pad->out_value = ret; } seq_printf(s, " %-4s", pad->output_enabled ? "out" : "in"); diff --git a/drivers/pinctrl/qcom/pinctrl-spmi-mpp.c b/drivers/pinctrl/qcom/pinctrl-spmi-mpp.c index 8f36c5f91949..211b942ad6d5 100644 --- a/drivers/pinctrl/qcom/pinctrl-spmi-mpp.c +++ b/drivers/pinctrl/qcom/pinctrl-spmi-mpp.c @@ -370,6 +370,7 @@ static int pmic_mpp_set_mux(struct pinctrl_dev *pctldev, unsigned function, } } + val = val << PMIC_MPP_REG_MODE_DIR_SHIFT; val |= pad->function << PMIC_MPP_REG_MODE_FUNCTION_SHIFT; val |= pad->out_value & PMIC_MPP_REG_MODE_VALUE_MASK; @@ -576,10 +577,11 @@ static void pmic_mpp_config_dbg_show(struct pinctrl_dev *pctldev, if (pad->input_enabled) { ret = pmic_mpp_read(state, pad, PMIC_MPP_REG_RT_STS); - if (!ret) { - ret &= PMIC_MPP_REG_RT_STS_VAL_MASK; - pad->out_value = ret; - } + if (ret < 0) + return; + + ret &= PMIC_MPP_REG_RT_STS_VAL_MASK; + pad->out_value = ret; } seq_printf(s, " %-4s", pad->output_enabled ? "out" : "in"); diff --git a/drivers/platform/x86/ideapad-laptop.c b/drivers/platform/x86/ideapad-laptop.c index b3d419a84723..b496db87bc05 100644 --- a/drivers/platform/x86/ideapad-laptop.c +++ b/drivers/platform/x86/ideapad-laptop.c @@ -830,6 +830,13 @@ static void ideapad_acpi_notify(acpi_handle handle, u32 event, void *data) */ static const struct dmi_system_id no_hw_rfkill_list[] = { { + .ident = "Lenovo G40-30", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"), + DMI_MATCH(DMI_PRODUCT_VERSION, "Lenovo G40-30"), + }, + }, + { .ident = "Lenovo Yoga 2 11 / 13 / Pro", .matches = { DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"), diff --git a/drivers/platform/x86/thinkpad_acpi.c b/drivers/platform/x86/thinkpad_acpi.c index 7769575345d8..9bb9ad6d4a1b 100644 --- a/drivers/platform/x86/thinkpad_acpi.c +++ b/drivers/platform/x86/thinkpad_acpi.c @@ -2115,7 +2115,7 @@ static int hotkey_mask_get(void) return 0; } -void static hotkey_mask_warn_incomplete_mask(void) +static void hotkey_mask_warn_incomplete_mask(void) { /* log only what the user can fix... */ const u32 wantedmask = hotkey_driver_mask & diff --git a/drivers/power/axp288_fuel_gauge.c b/drivers/power/axp288_fuel_gauge.c index ca1cc5a47eb1..bd1dbfee2515 100644 --- a/drivers/power/axp288_fuel_gauge.c +++ b/drivers/power/axp288_fuel_gauge.c @@ -1149,6 +1149,7 @@ static struct platform_driver axp288_fuel_gauge_driver = { module_platform_driver(axp288_fuel_gauge_driver); +MODULE_AUTHOR("Ramakrishna Pallala <ramakrishna.pallala@intel.com>"); MODULE_AUTHOR("Todd Brandt <todd.e.brandt@linux.intel.com>"); MODULE_DESCRIPTION("Xpower AXP288 Fuel Gauge Driver"); MODULE_LICENSE("GPL"); diff --git a/drivers/power/bq27x00_battery.c b/drivers/power/bq27x00_battery.c index a57433de5c24..b6b98378faa3 100644 --- a/drivers/power/bq27x00_battery.c +++ b/drivers/power/bq27x00_battery.c @@ -1109,6 +1109,14 @@ static void __exit bq27x00_battery_exit(void) } module_exit(bq27x00_battery_exit); +#ifdef CONFIG_BATTERY_BQ27X00_PLATFORM +MODULE_ALIAS("platform:bq27000-battery"); +#endif + +#ifdef CONFIG_BATTERY_BQ27X00_I2C +MODULE_ALIAS("i2c:bq27000-battery"); +#endif + MODULE_AUTHOR("Rodolfo Giometti <giometti@linux.it>"); MODULE_DESCRIPTION("BQ27x00 battery monitor driver"); MODULE_LICENSE("GPL"); diff --git a/drivers/power/collie_battery.c b/drivers/power/collie_battery.c index 2da9ed8ccbb5..8a971b3dbe58 100644 --- a/drivers/power/collie_battery.c +++ b/drivers/power/collie_battery.c @@ -347,7 +347,7 @@ static int collie_bat_probe(struct ucb1x00_dev *dev) goto err_psy_reg_main; } - psy_main_cfg.drv_data = &collie_bat_bu; + psy_bu_cfg.drv_data = &collie_bat_bu; collie_bat_bu.psy = power_supply_register(&dev->ucb->dev, &collie_bat_bu_desc, &psy_bu_cfg); diff --git a/drivers/power/reset/Kconfig b/drivers/power/reset/Kconfig index aad9c3318c02..17d93a73c513 100644 --- a/drivers/power/reset/Kconfig +++ b/drivers/power/reset/Kconfig @@ -41,6 +41,7 @@ config POWER_RESET_AXXIA config POWER_RESET_BRCMSTB bool "Broadcom STB reset driver" depends on ARM || MIPS || COMPILE_TEST + depends on MFD_SYSCON default ARCH_BRCMSTB help This driver provides restart support for Broadcom STB boards. diff --git a/drivers/power/reset/at91-reset.c b/drivers/power/reset/at91-reset.c index 01c7055c4200..ca461ebc7ae8 100644 --- a/drivers/power/reset/at91-reset.c +++ b/drivers/power/reset/at91-reset.c @@ -212,9 +212,9 @@ static int at91_reset_platform_probe(struct platform_device *pdev) res = platform_get_resource(pdev, IORESOURCE_MEM, idx + 1 ); at91_ramc_base[idx] = devm_ioremap(&pdev->dev, res->start, resource_size(res)); - if (IS_ERR(at91_ramc_base[idx])) { + if (!at91_ramc_base[idx]) { dev_err(&pdev->dev, "Could not map ram controller address\n"); - return PTR_ERR(at91_ramc_base[idx]); + return -ENOMEM; } } diff --git a/drivers/power/reset/ltc2952-poweroff.c b/drivers/power/reset/ltc2952-poweroff.c index 7ef193b6f7fe..1e08195551fe 100644 --- a/drivers/power/reset/ltc2952-poweroff.c +++ b/drivers/power/reset/ltc2952-poweroff.c @@ -120,18 +120,7 @@ static enum hrtimer_restart ltc2952_poweroff_timer_wde(struct hrtimer *timer) static void ltc2952_poweroff_start_wde(struct ltc2952_poweroff *data) { - if (hrtimer_start(&data->timer_wde, data->wde_interval, - HRTIMER_MODE_REL)) { - /* - * The device will not toggle the watchdog reset, - * thus shut down is only safe if the PowerPath controller - * has a long enough time-off before triggering a hardware - * power-off. - * - * Only sending a warning as the system will power-off anyway - */ - dev_err(data->dev, "unable to start the timer\n"); - } + hrtimer_start(&data->timer_wde, data->wde_interval, HRTIMER_MODE_REL); } static enum hrtimer_restart @@ -165,9 +154,8 @@ static irqreturn_t ltc2952_poweroff_handler(int irq, void *dev_id) } if (gpiod_get_value(data->gpio_trigger)) { - if (hrtimer_start(&data->timer_trigger, data->trigger_delay, - HRTIMER_MODE_REL)) - dev_err(data->dev, "unable to start the wait timer\n"); + hrtimer_start(&data->timer_trigger, data->trigger_delay, + HRTIMER_MODE_REL); } else { hrtimer_cancel(&data->timer_trigger); /* omitting return value check, timer should have been valid */ diff --git a/drivers/rtc/Kconfig b/drivers/rtc/Kconfig index 6149ae01e11f..0fe4ad8826b2 100644 --- a/drivers/rtc/Kconfig +++ b/drivers/rtc/Kconfig @@ -164,6 +164,16 @@ config RTC_DRV_ABB5ZES3 This driver can also be built as a module. If so, the module will be called rtc-ab-b5ze-s3. +config RTC_DRV_ABX80X + tristate "Abracon ABx80x" + help + If you say yes here you get support for Abracon AB080X and AB180X + families of ultra-low-power battery- and capacitor-backed real-time + clock chips. + + This driver can also be built as a module. If so, the module + will be called rtc-abx80x. + config RTC_DRV_AS3722 tristate "ams AS3722 RTC driver" depends on MFD_AS3722 diff --git a/drivers/rtc/Makefile b/drivers/rtc/Makefile index c31731c29762..2b82e2b0311b 100644 --- a/drivers/rtc/Makefile +++ b/drivers/rtc/Makefile @@ -25,6 +25,7 @@ obj-$(CONFIG_RTC_DRV_88PM80X) += rtc-88pm80x.o obj-$(CONFIG_RTC_DRV_AB3100) += rtc-ab3100.o obj-$(CONFIG_RTC_DRV_AB8500) += rtc-ab8500.o obj-$(CONFIG_RTC_DRV_ABB5ZES3) += rtc-ab-b5ze-s3.o +obj-$(CONFIG_RTC_DRV_ABX80X) += rtc-abx80x.o obj-$(CONFIG_RTC_DRV_ARMADA38X) += rtc-armada38x.o obj-$(CONFIG_RTC_DRV_AS3722) += rtc-as3722.o obj-$(CONFIG_RTC_DRV_AT32AP700X)+= rtc-at32ap700x.o diff --git a/drivers/rtc/rtc-abx80x.c b/drivers/rtc/rtc-abx80x.c new file mode 100644 index 000000000000..4337c3bc6ace --- /dev/null +++ b/drivers/rtc/rtc-abx80x.c @@ -0,0 +1,307 @@ +/* + * A driver for the I2C members of the Abracon AB x8xx RTC family, + * and compatible: AB 1805 and AB 0805 + * + * Copyright 2014-2015 Macq S.A. + * + * Author: Philippe De Muyter <phdm@macqel.be> + * Author: Alexandre Belloni <alexandre.belloni@free-electrons.com> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + */ + +#include <linux/bcd.h> +#include <linux/i2c.h> +#include <linux/module.h> +#include <linux/rtc.h> + +#define ABX8XX_REG_HTH 0x00 +#define ABX8XX_REG_SC 0x01 +#define ABX8XX_REG_MN 0x02 +#define ABX8XX_REG_HR 0x03 +#define ABX8XX_REG_DA 0x04 +#define ABX8XX_REG_MO 0x05 +#define ABX8XX_REG_YR 0x06 +#define ABX8XX_REG_WD 0x07 + +#define ABX8XX_REG_CTRL1 0x10 +#define ABX8XX_CTRL_WRITE BIT(1) +#define ABX8XX_CTRL_12_24 BIT(6) + +#define ABX8XX_REG_CFG_KEY 0x1f +#define ABX8XX_CFG_KEY_MISC 0x9d + +#define ABX8XX_REG_ID0 0x28 + +#define ABX8XX_REG_TRICKLE 0x20 +#define ABX8XX_TRICKLE_CHARGE_ENABLE 0xa0 +#define ABX8XX_TRICKLE_STANDARD_DIODE 0x8 +#define ABX8XX_TRICKLE_SCHOTTKY_DIODE 0x4 + +static u8 trickle_resistors[] = {0, 3, 6, 11}; + +enum abx80x_chip {AB0801, AB0803, AB0804, AB0805, + AB1801, AB1803, AB1804, AB1805, ABX80X}; + +struct abx80x_cap { + u16 pn; + bool has_tc; +}; + +static struct abx80x_cap abx80x_caps[] = { + [AB0801] = {.pn = 0x0801}, + [AB0803] = {.pn = 0x0803}, + [AB0804] = {.pn = 0x0804, .has_tc = true}, + [AB0805] = {.pn = 0x0805, .has_tc = true}, + [AB1801] = {.pn = 0x1801}, + [AB1803] = {.pn = 0x1803}, + [AB1804] = {.pn = 0x1804, .has_tc = true}, + [AB1805] = {.pn = 0x1805, .has_tc = true}, + [ABX80X] = {.pn = 0} +}; + +static struct i2c_driver abx80x_driver; + +static int abx80x_enable_trickle_charger(struct i2c_client *client, + u8 trickle_cfg) +{ + int err; + + /* + * Write the configuration key register to enable access to the Trickle + * register + */ + err = i2c_smbus_write_byte_data(client, ABX8XX_REG_CFG_KEY, + ABX8XX_CFG_KEY_MISC); + if (err < 0) { + dev_err(&client->dev, "Unable to write configuration key\n"); + return -EIO; + } + + err = i2c_smbus_write_byte_data(client, ABX8XX_REG_TRICKLE, + ABX8XX_TRICKLE_CHARGE_ENABLE | + trickle_cfg); + if (err < 0) { + dev_err(&client->dev, "Unable to write trickle register\n"); + return -EIO; + } + + return 0; +} + +static int abx80x_rtc_read_time(struct device *dev, struct rtc_time *tm) +{ + struct i2c_client *client = to_i2c_client(dev); + unsigned char buf[8]; + int err; + + err = i2c_smbus_read_i2c_block_data(client, ABX8XX_REG_HTH, + sizeof(buf), buf); + if (err < 0) { + dev_err(&client->dev, "Unable to read date\n"); + return -EIO; + } + + tm->tm_sec = bcd2bin(buf[ABX8XX_REG_SC] & 0x7F); + tm->tm_min = bcd2bin(buf[ABX8XX_REG_MN] & 0x7F); + tm->tm_hour = bcd2bin(buf[ABX8XX_REG_HR] & 0x3F); + tm->tm_wday = buf[ABX8XX_REG_WD] & 0x7; + tm->tm_mday = bcd2bin(buf[ABX8XX_REG_DA] & 0x3F); + tm->tm_mon = bcd2bin(buf[ABX8XX_REG_MO] & 0x1F) - 1; + tm->tm_year = bcd2bin(buf[ABX8XX_REG_YR]) + 100; + + err = rtc_valid_tm(tm); + if (err < 0) + dev_err(&client->dev, "retrieved date/time is not valid.\n"); + + return err; +} + +static int abx80x_rtc_set_time(struct device *dev, struct rtc_time *tm) +{ + struct i2c_client *client = to_i2c_client(dev); + unsigned char buf[8]; + int err; + + if (tm->tm_year < 100) + return -EINVAL; + + buf[ABX8XX_REG_HTH] = 0; + buf[ABX8XX_REG_SC] = bin2bcd(tm->tm_sec); + buf[ABX8XX_REG_MN] = bin2bcd(tm->tm_min); + buf[ABX8XX_REG_HR] = bin2bcd(tm->tm_hour); + buf[ABX8XX_REG_DA] = bin2bcd(tm->tm_mday); + buf[ABX8XX_REG_MO] = bin2bcd(tm->tm_mon + 1); + buf[ABX8XX_REG_YR] = bin2bcd(tm->tm_year - 100); + buf[ABX8XX_REG_WD] = tm->tm_wday; + + err = i2c_smbus_write_i2c_block_data(client, ABX8XX_REG_HTH, + sizeof(buf), buf); + if (err < 0) { + dev_err(&client->dev, "Unable to write to date registers\n"); + return -EIO; + } + + return 0; +} + +static const struct rtc_class_ops abx80x_rtc_ops = { + .read_time = abx80x_rtc_read_time, + .set_time = abx80x_rtc_set_time, +}; + +static int abx80x_dt_trickle_cfg(struct device_node *np) +{ + const char *diode; + int trickle_cfg = 0; + int i, ret; + u32 tmp; + + ret = of_property_read_string(np, "abracon,tc-diode", &diode); + if (ret) + return ret; + + if (!strcmp(diode, "standard")) + trickle_cfg |= ABX8XX_TRICKLE_STANDARD_DIODE; + else if (!strcmp(diode, "schottky")) + trickle_cfg |= ABX8XX_TRICKLE_SCHOTTKY_DIODE; + else + return -EINVAL; + + ret = of_property_read_u32(np, "abracon,tc-resistor", &tmp); + if (ret) + return ret; + + for (i = 0; i < sizeof(trickle_resistors); i++) + if (trickle_resistors[i] == tmp) + break; + + if (i == sizeof(trickle_resistors)) + return -EINVAL; + + return (trickle_cfg | i); +} + +static int abx80x_probe(struct i2c_client *client, + const struct i2c_device_id *id) +{ + struct device_node *np = client->dev.of_node; + struct rtc_device *rtc; + int i, data, err, trickle_cfg = -EINVAL; + char buf[7]; + unsigned int part = id->driver_data; + unsigned int partnumber; + unsigned int majrev, minrev; + unsigned int lot; + unsigned int wafer; + unsigned int uid; + + if (!i2c_check_functionality(client->adapter, I2C_FUNC_I2C)) + return -ENODEV; + + err = i2c_smbus_read_i2c_block_data(client, ABX8XX_REG_ID0, + sizeof(buf), buf); + if (err < 0) { + dev_err(&client->dev, "Unable to read partnumber\n"); + return -EIO; + } + + partnumber = (buf[0] << 8) | buf[1]; + majrev = buf[2] >> 3; + minrev = buf[2] & 0x7; + lot = ((buf[4] & 0x80) << 2) | ((buf[6] & 0x80) << 1) | buf[3]; + uid = ((buf[4] & 0x7f) << 8) | buf[5]; + wafer = (buf[6] & 0x7c) >> 2; + dev_info(&client->dev, "model %04x, revision %u.%u, lot %x, wafer %x, uid %x\n", + partnumber, majrev, minrev, lot, wafer, uid); + + data = i2c_smbus_read_byte_data(client, ABX8XX_REG_CTRL1); + if (data < 0) { + dev_err(&client->dev, "Unable to read control register\n"); + return -EIO; + } + + err = i2c_smbus_write_byte_data(client, ABX8XX_REG_CTRL1, + ((data & ~ABX8XX_CTRL_12_24) | + ABX8XX_CTRL_WRITE)); + if (err < 0) { + dev_err(&client->dev, "Unable to write control register\n"); + return -EIO; + } + + /* part autodetection */ + if (part == ABX80X) { + for (i = 0; abx80x_caps[i].pn; i++) + if (partnumber == abx80x_caps[i].pn) + break; + if (abx80x_caps[i].pn == 0) { + dev_err(&client->dev, "Unknown part: %04x\n", + partnumber); + return -EINVAL; + } + part = i; + } + + if (partnumber != abx80x_caps[part].pn) { + dev_err(&client->dev, "partnumber mismatch %04x != %04x\n", + partnumber, abx80x_caps[part].pn); + return -EINVAL; + } + + if (np && abx80x_caps[part].has_tc) + trickle_cfg = abx80x_dt_trickle_cfg(np); + + if (trickle_cfg > 0) { + dev_info(&client->dev, "Enabling trickle charger: %02x\n", + trickle_cfg); + abx80x_enable_trickle_charger(client, trickle_cfg); + } + + rtc = devm_rtc_device_register(&client->dev, abx80x_driver.driver.name, + &abx80x_rtc_ops, THIS_MODULE); + + if (IS_ERR(rtc)) + return PTR_ERR(rtc); + + i2c_set_clientdata(client, rtc); + + return 0; +} + +static int abx80x_remove(struct i2c_client *client) +{ + return 0; +} + +static const struct i2c_device_id abx80x_id[] = { + { "abx80x", ABX80X }, + { "ab0801", AB0801 }, + { "ab0803", AB0803 }, + { "ab0804", AB0804 }, + { "ab0805", AB0805 }, + { "ab1801", AB1801 }, + { "ab1803", AB1803 }, + { "ab1804", AB1804 }, + { "ab1805", AB1805 }, + { } +}; +MODULE_DEVICE_TABLE(i2c, abx80x_id); + +static struct i2c_driver abx80x_driver = { + .driver = { + .name = "rtc-abx80x", + }, + .probe = abx80x_probe, + .remove = abx80x_remove, + .id_table = abx80x_id, +}; + +module_i2c_driver(abx80x_driver); + +MODULE_AUTHOR("Philippe De Muyter <phdm@macqel.be>"); +MODULE_AUTHOR("Alexandre Belloni <alexandre.belloni@free-electrons.com>"); +MODULE_DESCRIPTION("Abracon ABX80X RTC driver"); +MODULE_LICENSE("GPL v2"); diff --git a/drivers/rtc/rtc-armada38x.c b/drivers/rtc/rtc-armada38x.c index 43e04af39e09..cb70ced7e0db 100644 --- a/drivers/rtc/rtc-armada38x.c +++ b/drivers/rtc/rtc-armada38x.c @@ -40,6 +40,13 @@ struct armada38x_rtc { void __iomem *regs; void __iomem *regs_soc; spinlock_t lock; + /* + * While setting the time, the RTC TIME register should not be + * accessed. Setting the RTC time involves sleeping during + * 100ms, so a mutex instead of a spinlock is used to protect + * it + */ + struct mutex mutex_time; int irq; }; @@ -59,8 +66,7 @@ static int armada38x_rtc_read_time(struct device *dev, struct rtc_time *tm) struct armada38x_rtc *rtc = dev_get_drvdata(dev); unsigned long time, time_check, flags; - spin_lock_irqsave(&rtc->lock, flags); - + mutex_lock(&rtc->mutex_time); time = readl(rtc->regs + RTC_TIME); /* * WA for failing time set attempts. As stated in HW ERRATA if @@ -71,7 +77,7 @@ static int armada38x_rtc_read_time(struct device *dev, struct rtc_time *tm) if ((time_check - time) > 1) time_check = readl(rtc->regs + RTC_TIME); - spin_unlock_irqrestore(&rtc->lock, flags); + mutex_unlock(&rtc->mutex_time); rtc_time_to_tm(time_check, tm); @@ -94,19 +100,12 @@ static int armada38x_rtc_set_time(struct device *dev, struct rtc_time *tm) * then wait for 100ms before writing to the time register to be * sure that the data will be taken into account. */ - spin_lock_irqsave(&rtc->lock, flags); - + mutex_lock(&rtc->mutex_time); rtc_delayed_write(0, rtc, RTC_STATUS); - - spin_unlock_irqrestore(&rtc->lock, flags); - msleep(100); - - spin_lock_irqsave(&rtc->lock, flags); - rtc_delayed_write(time, rtc, RTC_TIME); + mutex_unlock(&rtc->mutex_time); - spin_unlock_irqrestore(&rtc->lock, flags); out: return ret; } @@ -230,6 +229,7 @@ static __init int armada38x_rtc_probe(struct platform_device *pdev) return -ENOMEM; spin_lock_init(&rtc->lock); + mutex_init(&rtc->mutex_time); res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "rtc"); rtc->regs = devm_ioremap_resource(&pdev->dev, res); diff --git a/drivers/spi/Kconfig b/drivers/spi/Kconfig index 198f96b7fb45..72b059081559 100644 --- a/drivers/spi/Kconfig +++ b/drivers/spi/Kconfig @@ -78,6 +78,7 @@ config SPI_ATMEL config SPI_BCM2835 tristate "BCM2835 SPI controller" depends on ARCH_BCM2835 || COMPILE_TEST + depends on GPIOLIB help This selects a driver for the Broadcom BCM2835 SPI master. @@ -302,7 +303,7 @@ config SPI_FSL_SPI config SPI_FSL_DSPI tristate "Freescale DSPI controller" select REGMAP_MMIO - depends on SOC_VF610 || COMPILE_TEST + depends on SOC_VF610 || SOC_LS1021A || COMPILE_TEST help This enables support for the Freescale DSPI controller in master mode. VF610 platform uses the controller. diff --git a/drivers/spi/spi-bcm2835.c b/drivers/spi/spi-bcm2835.c index f63864a893c5..37875cf942f7 100644 --- a/drivers/spi/spi-bcm2835.c +++ b/drivers/spi/spi-bcm2835.c @@ -164,13 +164,12 @@ static int bcm2835_spi_transfer_one_poll(struct spi_master *master, unsigned long xfer_time_us) { struct bcm2835_spi *bs = spi_master_get_devdata(master); - unsigned long timeout = jiffies + - max(4 * xfer_time_us * HZ / 1000000, 2uL); + /* set timeout to 1 second of maximum polling */ + unsigned long timeout = jiffies + HZ; /* enable HW block without interrupts */ bcm2835_wr(bs, BCM2835_SPI_CS, cs | BCM2835_SPI_CS_TA); - /* set timeout to 4x the expected time, or 2 jiffies */ /* loop until finished the transfer */ while (bs->rx_len) { /* read from fifo as much as possible */ diff --git a/drivers/spi/spi-bitbang.c b/drivers/spi/spi-bitbang.c index 5ef6638d5e8a..840a4984d365 100644 --- a/drivers/spi/spi-bitbang.c +++ b/drivers/spi/spi-bitbang.c @@ -180,7 +180,6 @@ int spi_bitbang_setup(struct spi_device *spi) { struct spi_bitbang_cs *cs = spi->controller_state; struct spi_bitbang *bitbang; - int retval; unsigned long flags; bitbang = spi_master_get_devdata(spi->master); @@ -197,9 +196,11 @@ int spi_bitbang_setup(struct spi_device *spi) if (!cs->txrx_word) return -EINVAL; - retval = bitbang->setup_transfer(spi, NULL); - if (retval < 0) - return retval; + if (bitbang->setup_transfer) { + int retval = bitbang->setup_transfer(spi, NULL); + if (retval < 0) + return retval; + } dev_dbg(&spi->dev, "%s, %u nsec/bit\n", __func__, 2 * cs->nsecs); @@ -295,9 +296,11 @@ static int spi_bitbang_transfer_one(struct spi_master *master, /* init (-1) or override (1) transfer params */ if (do_setup != 0) { - status = bitbang->setup_transfer(spi, t); - if (status < 0) - break; + if (bitbang->setup_transfer) { + status = bitbang->setup_transfer(spi, t); + if (status < 0) + break; + } if (do_setup == -1) do_setup = 0; } diff --git a/drivers/spi/spi-fsl-cpm.c b/drivers/spi/spi-fsl-cpm.c index 9c46a3058743..896add8cfd3b 100644 --- a/drivers/spi/spi-fsl-cpm.c +++ b/drivers/spi/spi-fsl-cpm.c @@ -24,6 +24,7 @@ #include <linux/of_address.h> #include <linux/spi/spi.h> #include <linux/types.h> +#include <linux/platform_device.h> #include "spi-fsl-cpm.h" #include "spi-fsl-lib.h" @@ -269,17 +270,6 @@ static unsigned long fsl_spi_cpm_get_pram(struct mpc8xxx_spi *mspi) if (mspi->flags & SPI_CPM2) { pram_ofs = cpm_muram_alloc(SPI_PRAM_SIZE, 64); out_be16(spi_base, pram_ofs); - } else { - struct spi_pram __iomem *pram = spi_base; - u16 rpbase = in_be16(&pram->rpbase); - - /* Microcode relocation patch applied? */ - if (rpbase) { - pram_ofs = rpbase; - } else { - pram_ofs = cpm_muram_alloc(SPI_PRAM_SIZE, 64); - out_be16(spi_base, pram_ofs); - } } iounmap(spi_base); @@ -292,7 +282,6 @@ int fsl_spi_cpm_init(struct mpc8xxx_spi *mspi) struct device_node *np = dev->of_node; const u32 *iprop; int size; - unsigned long pram_ofs; unsigned long bds_ofs; if (!(mspi->flags & SPI_CPM_MODE)) @@ -319,8 +308,26 @@ int fsl_spi_cpm_init(struct mpc8xxx_spi *mspi) } } - pram_ofs = fsl_spi_cpm_get_pram(mspi); - if (IS_ERR_VALUE(pram_ofs)) { + if (mspi->flags & SPI_CPM1) { + struct resource *res; + void *pram; + + res = platform_get_resource(to_platform_device(dev), + IORESOURCE_MEM, 1); + pram = devm_ioremap_resource(dev, res); + if (IS_ERR(pram)) + mspi->pram = NULL; + else + mspi->pram = pram; + } else { + unsigned long pram_ofs = fsl_spi_cpm_get_pram(mspi); + + if (IS_ERR_VALUE(pram_ofs)) + mspi->pram = NULL; + else + mspi->pram = cpm_muram_addr(pram_ofs); + } + if (mspi->pram == NULL) { dev_err(dev, "can't allocate spi parameter ram\n"); goto err_pram; } @@ -346,8 +353,6 @@ int fsl_spi_cpm_init(struct mpc8xxx_spi *mspi) goto err_dummy_rx; } - mspi->pram = cpm_muram_addr(pram_ofs); - mspi->tx_bd = cpm_muram_addr(bds_ofs); mspi->rx_bd = cpm_muram_addr(bds_ofs + sizeof(*mspi->tx_bd)); @@ -375,7 +380,8 @@ err_dummy_rx: err_dummy_tx: cpm_muram_free(bds_ofs); err_bds: - cpm_muram_free(pram_ofs); + if (!(mspi->flags & SPI_CPM1)) + cpm_muram_free(cpm_muram_offset(mspi->pram)); err_pram: fsl_spi_free_dummy_rx(); return -ENOMEM; diff --git a/drivers/spi/spi-fsl-espi.c b/drivers/spi/spi-fsl-espi.c index d0a73a09a9bd..80d245ac846f 100644 --- a/drivers/spi/spi-fsl-espi.c +++ b/drivers/spi/spi-fsl-espi.c @@ -359,14 +359,16 @@ static void fsl_espi_rw_trans(struct spi_message *m, struct fsl_espi_transfer *trans, u8 *rx_buff) { struct fsl_espi_transfer *espi_trans = trans; - unsigned int n_tx = espi_trans->n_tx; - unsigned int n_rx = espi_trans->n_rx; + unsigned int total_len = espi_trans->len; struct spi_transfer *t; u8 *local_buf; u8 *rx_buf = rx_buff; unsigned int trans_len; unsigned int addr; - int i, pos, loop; + unsigned int tx_only; + unsigned int rx_pos = 0; + unsigned int pos; + int i, loop; local_buf = kzalloc(SPCOM_TRANLEN_MAX, GFP_KERNEL); if (!local_buf) { @@ -374,36 +376,48 @@ static void fsl_espi_rw_trans(struct spi_message *m, return; } - for (pos = 0, loop = 0; pos < n_rx; pos += trans_len, loop++) { - trans_len = n_rx - pos; - if (trans_len > SPCOM_TRANLEN_MAX - n_tx) - trans_len = SPCOM_TRANLEN_MAX - n_tx; + for (pos = 0, loop = 0; pos < total_len; pos += trans_len, loop++) { + trans_len = total_len - pos; i = 0; + tx_only = 0; list_for_each_entry(t, &m->transfers, transfer_list) { if (t->tx_buf) { memcpy(local_buf + i, t->tx_buf, t->len); i += t->len; + if (!t->rx_buf) + tx_only += t->len; } } + /* Add additional TX bytes to compensate SPCOM_TRANLEN_MAX */ + if (loop > 0) + trans_len += tx_only; + + if (trans_len > SPCOM_TRANLEN_MAX) + trans_len = SPCOM_TRANLEN_MAX; + + /* Update device offset */ if (pos > 0) { addr = fsl_espi_cmd2addr(local_buf); - addr += pos; + addr += rx_pos; fsl_espi_addr2cmd(addr, local_buf); } - espi_trans->n_tx = n_tx; - espi_trans->n_rx = trans_len; - espi_trans->len = trans_len + n_tx; + espi_trans->len = trans_len; espi_trans->tx_buf = local_buf; espi_trans->rx_buf = local_buf; fsl_espi_do_trans(m, espi_trans); - memcpy(rx_buf + pos, espi_trans->rx_buf + n_tx, trans_len); + /* If there is at least one RX byte then copy it to rx_buf */ + if (tx_only < SPCOM_TRANLEN_MAX) + memcpy(rx_buf + rx_pos, espi_trans->rx_buf + tx_only, + trans_len - tx_only); + + rx_pos += trans_len - tx_only; if (loop > 0) - espi_trans->actual_length += espi_trans->len - n_tx; + espi_trans->actual_length += espi_trans->len - tx_only; else espi_trans->actual_length += espi_trans->len; } @@ -418,6 +432,7 @@ static int fsl_espi_do_one_msg(struct spi_master *master, u8 *rx_buf = NULL; unsigned int n_tx = 0; unsigned int n_rx = 0; + unsigned int xfer_len = 0; struct fsl_espi_transfer espi_trans; list_for_each_entry(t, &m->transfers, transfer_list) { @@ -427,11 +442,13 @@ static int fsl_espi_do_one_msg(struct spi_master *master, n_rx += t->len; rx_buf = t->rx_buf; } + if ((t->tx_buf) || (t->rx_buf)) + xfer_len += t->len; } espi_trans.n_tx = n_tx; espi_trans.n_rx = n_rx; - espi_trans.len = n_tx + n_rx; + espi_trans.len = xfer_len; espi_trans.actual_length = 0; espi_trans.status = 0; diff --git a/drivers/spi/spi-omap2-mcspi.c b/drivers/spi/spi-omap2-mcspi.c index 4df8942058de..d1a5b9fc3eba 100644 --- a/drivers/spi/spi-omap2-mcspi.c +++ b/drivers/spi/spi-omap2-mcspi.c @@ -1210,6 +1210,7 @@ static int omap2_mcspi_transfer_one_message(struct spi_master *master, struct omap2_mcspi *mcspi; struct omap2_mcspi_dma *mcspi_dma; struct spi_transfer *t; + int status; spi = m->spi; mcspi = spi_master_get_devdata(master); @@ -1229,7 +1230,8 @@ static int omap2_mcspi_transfer_one_message(struct spi_master *master, tx_buf ? "tx" : "", rx_buf ? "rx" : "", t->bits_per_word); - return -EINVAL; + status = -EINVAL; + goto out; } if (m->is_dma_mapped || len < DMA_MIN_BYTES) @@ -1241,7 +1243,8 @@ static int omap2_mcspi_transfer_one_message(struct spi_master *master, if (dma_mapping_error(mcspi->dev, t->tx_dma)) { dev_dbg(mcspi->dev, "dma %cX %d bytes error\n", 'T', len); - return -EINVAL; + status = -EINVAL; + goto out; } } if (mcspi_dma->dma_rx && rx_buf != NULL) { @@ -1253,14 +1256,19 @@ static int omap2_mcspi_transfer_one_message(struct spi_master *master, if (tx_buf != NULL) dma_unmap_single(mcspi->dev, t->tx_dma, len, DMA_TO_DEVICE); - return -EINVAL; + status = -EINVAL; + goto out; } } } omap2_mcspi_work(mcspi, m); + /* spi_finalize_current_message() changes the status inside the + * spi_message, save the status here. */ + status = m->status; +out: spi_finalize_current_message(master); - return 0; + return status; } static int omap2_mcspi_master_setup(struct omap2_mcspi *mcspi) diff --git a/drivers/spi/spi.c b/drivers/spi/spi.c index d5d7d2235163..50910d85df5a 100644 --- a/drivers/spi/spi.c +++ b/drivers/spi/spi.c @@ -583,6 +583,15 @@ static int spi_unmap_msg(struct spi_master *master, struct spi_message *msg) rx_dev = master->dma_rx->device->dev; list_for_each_entry(xfer, &msg->transfers, transfer_list) { + /* + * Restore the original value of tx_buf or rx_buf if they are + * NULL. + */ + if (xfer->tx_buf == master->dummy_tx) + xfer->tx_buf = NULL; + if (xfer->rx_buf == master->dummy_rx) + xfer->rx_buf = NULL; + if (!master->can_dma(master, msg->spi, xfer)) continue; diff --git a/drivers/staging/media/omap4iss/Kconfig b/drivers/staging/media/omap4iss/Kconfig index b78643f907e7..072dac04a750 100644 --- a/drivers/staging/media/omap4iss/Kconfig +++ b/drivers/staging/media/omap4iss/Kconfig @@ -2,6 +2,7 @@ config VIDEO_OMAP4 bool "OMAP 4 Camera support" depends on VIDEO_V4L2=y && VIDEO_V4L2_SUBDEV_API && I2C=y && ARCH_OMAP4 depends on HAS_DMA + select MFD_SYSCON select VIDEOBUF2_DMA_CONTIG ---help--- Driver for an OMAP 4 ISS controller. diff --git a/drivers/staging/media/omap4iss/iss.c b/drivers/staging/media/omap4iss/iss.c index e0ad5e520e2d..7ced940bd807 100644 --- a/drivers/staging/media/omap4iss/iss.c +++ b/drivers/staging/media/omap4iss/iss.c @@ -17,6 +17,7 @@ #include <linux/dma-mapping.h> #include <linux/i2c.h> #include <linux/interrupt.h> +#include <linux/mfd/syscon.h> #include <linux/module.h> #include <linux/platform_device.h> #include <linux/slab.h> @@ -1386,6 +1387,16 @@ static int iss_probe(struct platform_device *pdev) platform_set_drvdata(pdev, iss); + /* + * TODO: When implementing DT support switch to syscon regmap lookup by + * phandle. + */ + iss->syscon = syscon_regmap_lookup_by_compatible("syscon"); + if (IS_ERR(iss->syscon)) { + ret = PTR_ERR(iss->syscon); + goto error; + } + /* Clocks */ ret = iss_map_mem_resource(pdev, iss, OMAP4_ISS_MEM_TOP); if (ret < 0) diff --git a/drivers/staging/media/omap4iss/iss.h b/drivers/staging/media/omap4iss/iss.h index 734cfeeb0314..35df8b4709e6 100644 --- a/drivers/staging/media/omap4iss/iss.h +++ b/drivers/staging/media/omap4iss/iss.h @@ -29,6 +29,8 @@ #include "iss_ipipe.h" #include "iss_resizer.h" +struct regmap; + #define to_iss_device(ptr_module) \ container_of(ptr_module, struct iss_device, ptr_module) #define to_device(ptr_module) \ @@ -79,6 +81,7 @@ struct iss_reg { /* * struct iss_device - ISS device structure. + * @syscon: Regmap for the syscon register space * @crashed: Bitmask of crashed entities (indexed by entity ID) */ struct iss_device { @@ -93,6 +96,7 @@ struct iss_device { struct resource *res[OMAP4_ISS_MEM_LAST]; void __iomem *regs[OMAP4_ISS_MEM_LAST]; + struct regmap *syscon; u64 raw_dmamask; diff --git a/drivers/staging/media/omap4iss/iss_csiphy.c b/drivers/staging/media/omap4iss/iss_csiphy.c index 7c3d55d811ef..748607f8918f 100644 --- a/drivers/staging/media/omap4iss/iss_csiphy.c +++ b/drivers/staging/media/omap4iss/iss_csiphy.c @@ -13,6 +13,7 @@ #include <linux/delay.h> #include <linux/device.h> +#include <linux/regmap.h> #include "../../../../arch/arm/mach-omap2/control.h" @@ -140,9 +141,11 @@ int omap4iss_csiphy_config(struct iss_device *iss, * - bit [18] : CSIPHY1 CTRLCLK enable * - bit [17:16] : CSIPHY1 config: 00 d-phy, 01/10 ccp2 */ - cam_rx_ctrl = omap4_ctrl_pad_readl( - OMAP4_CTRL_MODULE_PAD_CORE_CONTROL_CAMERA_RX); - + /* + * TODO: When implementing DT support specify the CONTROL_CAMERA_RX + * register offset in the syscon property instead of hardcoding it. + */ + regmap_read(iss->syscon, 0x68, &cam_rx_ctrl); if (subdevs->interface == ISS_INTERFACE_CSI2A_PHY1) { cam_rx_ctrl &= ~(OMAP4_CAMERARX_CSI21_LANEENABLE_MASK | @@ -166,8 +169,7 @@ int omap4iss_csiphy_config(struct iss_device *iss, cam_rx_ctrl |= OMAP4_CAMERARX_CSI22_CTRLCLKEN_MASK; } - omap4_ctrl_pad_writel(cam_rx_ctrl, - OMAP4_CTRL_MODULE_PAD_CORE_CONTROL_CAMERA_RX); + regmap_write(iss->syscon, 0x68, cam_rx_ctrl); /* Reset used lane count */ csi2->phy->used_data_lanes = 0; diff --git a/drivers/tty/hvc/hvc_xen.c b/drivers/tty/hvc/hvc_xen.c index f1e57425e39f..5bab1c684bb1 100644 --- a/drivers/tty/hvc/hvc_xen.c +++ b/drivers/tty/hvc/hvc_xen.c @@ -299,11 +299,27 @@ static int xen_initial_domain_console_init(void) return 0; } +static void xen_console_update_evtchn(struct xencons_info *info) +{ + if (xen_hvm_domain()) { + uint64_t v; + int err; + + err = hvm_get_parameter(HVM_PARAM_CONSOLE_EVTCHN, &v); + if (!err && v) + info->evtchn = v; + } else + info->evtchn = xen_start_info->console.domU.evtchn; +} + void xen_console_resume(void) { struct xencons_info *info = vtermno_to_xencons(HVC_COOKIE); - if (info != NULL && info->irq) + if (info != NULL && info->irq) { + if (!xen_initial_domain()) + xen_console_update_evtchn(info); rebind_evtchn_irq(info->evtchn, info->irq); + } } static void xencons_disconnect_backend(struct xencons_info *info) diff --git a/drivers/vfio/pci/vfio_pci.c b/drivers/vfio/pci/vfio_pci.c index 69fab0fd15ae..e9851add6f4e 100644 --- a/drivers/vfio/pci/vfio_pci.c +++ b/drivers/vfio/pci/vfio_pci.c @@ -907,8 +907,14 @@ static void vfio_pci_request(void *device_data, unsigned int count) mutex_lock(&vdev->igate); if (vdev->req_trigger) { - dev_dbg(&vdev->pdev->dev, "Requesting device from user\n"); + if (!(count % 10)) + dev_notice_ratelimited(&vdev->pdev->dev, + "Relaying device request to user (#%u)\n", + count); eventfd_signal(vdev->req_trigger, 1); + } else if (count == 0) { + dev_warn(&vdev->pdev->dev, + "No device request channel registered, blocked until released by user\n"); } mutex_unlock(&vdev->igate); diff --git a/drivers/vfio/vfio.c b/drivers/vfio/vfio.c index 0d336625ac71..e1278fe04b1e 100644 --- a/drivers/vfio/vfio.c +++ b/drivers/vfio/vfio.c @@ -710,6 +710,8 @@ void *vfio_del_group_dev(struct device *dev) void *device_data = device->device_data; struct vfio_unbound_dev *unbound; unsigned int i = 0; + long ret; + bool interrupted = false; /* * The group exists so long as we have a device reference. Get @@ -755,9 +757,22 @@ void *vfio_del_group_dev(struct device *dev) vfio_device_put(device); - } while (wait_event_interruptible_timeout(vfio.release_q, - !vfio_dev_present(group, dev), - HZ * 10) <= 0); + if (interrupted) { + ret = wait_event_timeout(vfio.release_q, + !vfio_dev_present(group, dev), HZ * 10); + } else { + ret = wait_event_interruptible_timeout(vfio.release_q, + !vfio_dev_present(group, dev), HZ * 10); + if (ret == -ERESTARTSYS) { + interrupted = true; + dev_warn(dev, + "Device is currently in use, task" + " \"%s\" (%d) " + "blocked until device is released", + current->comm, task_pid_nr(current)); + } + } + } while (ret <= 0); vfio_group_put(group); diff --git a/drivers/xen/events/events_2l.c b/drivers/xen/events/events_2l.c index 5db43fc100a4..7dd46312c180 100644 --- a/drivers/xen/events/events_2l.c +++ b/drivers/xen/events/events_2l.c @@ -345,6 +345,15 @@ irqreturn_t xen_debug_interrupt(int irq, void *dev_id) return IRQ_HANDLED; } +static void evtchn_2l_resume(void) +{ + int i; + + for_each_online_cpu(i) + memset(per_cpu(cpu_evtchn_mask, i), 0, sizeof(xen_ulong_t) * + EVTCHN_2L_NR_CHANNELS/BITS_PER_EVTCHN_WORD); +} + static const struct evtchn_ops evtchn_ops_2l = { .max_channels = evtchn_2l_max_channels, .nr_channels = evtchn_2l_max_channels, @@ -356,6 +365,7 @@ static const struct evtchn_ops evtchn_ops_2l = { .mask = evtchn_2l_mask, .unmask = evtchn_2l_unmask, .handle_events = evtchn_2l_handle_events, + .resume = evtchn_2l_resume, }; void __init xen_evtchn_2l_init(void) diff --git a/drivers/xen/events/events_base.c b/drivers/xen/events/events_base.c index 70fba973a107..2b8553bd8715 100644 --- a/drivers/xen/events/events_base.c +++ b/drivers/xen/events/events_base.c @@ -529,8 +529,8 @@ static unsigned int __startup_pirq(unsigned int irq) if (rc) goto err; - bind_evtchn_to_cpu(evtchn, 0); info->evtchn = evtchn; + bind_evtchn_to_cpu(evtchn, 0); rc = xen_evtchn_port_setup(info); if (rc) @@ -1279,8 +1279,9 @@ void rebind_evtchn_irq(int evtchn, int irq) mutex_unlock(&irq_mapping_update_lock); - /* new event channels are always bound to cpu 0 */ - irq_set_affinity(irq, cpumask_of(0)); + bind_evtchn_to_cpu(evtchn, info->cpu); + /* This will be deferred until interrupt is processed */ + irq_set_affinity(irq, cpumask_of(info->cpu)); /* Unmask the event channel. */ enable_irq(irq); diff --git a/drivers/xen/gntdev.c b/drivers/xen/gntdev.c index d5bb1a33d0a3..89274850741b 100644 --- a/drivers/xen/gntdev.c +++ b/drivers/xen/gntdev.c @@ -327,30 +327,10 @@ static int map_grant_pages(struct grant_map *map) return err; } -struct unmap_grant_pages_callback_data -{ - struct completion completion; - int result; -}; - -static void unmap_grant_callback(int result, - struct gntab_unmap_queue_data *data) -{ - struct unmap_grant_pages_callback_data* d = data->data; - - d->result = result; - complete(&d->completion); -} - static int __unmap_grant_pages(struct grant_map *map, int offset, int pages) { int i, err = 0; struct gntab_unmap_queue_data unmap_data; - struct unmap_grant_pages_callback_data data; - - init_completion(&data.completion); - unmap_data.data = &data; - unmap_data.done= &unmap_grant_callback; if (map->notify.flags & UNMAP_NOTIFY_CLEAR_BYTE) { int pgno = (map->notify.addr >> PAGE_SHIFT); @@ -367,11 +347,9 @@ static int __unmap_grant_pages(struct grant_map *map, int offset, int pages) unmap_data.pages = map->pages + offset; unmap_data.count = pages; - gnttab_unmap_refs_async(&unmap_data); - - wait_for_completion(&data.completion); - if (data.result) - return data.result; + err = gnttab_unmap_refs_sync(&unmap_data); + if (err) + return err; for (i = 0; i < pages; i++) { if (map->unmap_ops[offset+i].status) diff --git a/drivers/xen/grant-table.c b/drivers/xen/grant-table.c index 17972fbacddc..b1c7170e5c9e 100644 --- a/drivers/xen/grant-table.c +++ b/drivers/xen/grant-table.c @@ -123,6 +123,11 @@ struct gnttab_ops { int (*query_foreign_access)(grant_ref_t ref); }; +struct unmap_refs_callback_data { + struct completion completion; + int result; +}; + static struct gnttab_ops *gnttab_interface; static int grant_table_version; @@ -863,6 +868,29 @@ void gnttab_unmap_refs_async(struct gntab_unmap_queue_data* item) } EXPORT_SYMBOL_GPL(gnttab_unmap_refs_async); +static void unmap_refs_callback(int result, + struct gntab_unmap_queue_data *data) +{ + struct unmap_refs_callback_data *d = data->data; + + d->result = result; + complete(&d->completion); +} + +int gnttab_unmap_refs_sync(struct gntab_unmap_queue_data *item) +{ + struct unmap_refs_callback_data data; + + init_completion(&data.completion); + item->data = &data; + item->done = &unmap_refs_callback; + gnttab_unmap_refs_async(item); + wait_for_completion(&data.completion); + + return data.result; +} +EXPORT_SYMBOL_GPL(gnttab_unmap_refs_sync); + static int gnttab_map_frames_v1(xen_pfn_t *frames, unsigned int nr_gframes) { int rc; diff --git a/drivers/xen/manage.c b/drivers/xen/manage.c index bf1940706422..9e6a85104a20 100644 --- a/drivers/xen/manage.c +++ b/drivers/xen/manage.c @@ -131,6 +131,8 @@ static void do_suspend(void) goto out_resume; } + xen_arch_suspend(); + si.cancelled = 1; err = stop_machine(xen_suspend, &si, cpumask_of(0)); @@ -148,11 +150,12 @@ static void do_suspend(void) si.cancelled = 1; } + xen_arch_resume(); + out_resume: - if (!si.cancelled) { - xen_arch_resume(); + if (!si.cancelled) xs_resume(); - } else + else xs_suspend_cancel(); dpm_resume_end(si.cancelled ? PMSG_THAW : PMSG_RESTORE); diff --git a/drivers/xen/swiotlb-xen.c b/drivers/xen/swiotlb-xen.c index 810ad419e34c..4c549323c605 100644 --- a/drivers/xen/swiotlb-xen.c +++ b/drivers/xen/swiotlb-xen.c @@ -235,7 +235,7 @@ retry: #define SLABS_PER_PAGE (1 << (PAGE_SHIFT - IO_TLB_SHIFT)) #define IO_TLB_MIN_SLABS ((1<<20) >> IO_TLB_SHIFT) while ((SLABS_PER_PAGE << order) > IO_TLB_MIN_SLABS) { - xen_io_tlb_start = (void *)__get_free_pages(__GFP_NOWARN, order); + xen_io_tlb_start = (void *)xen_get_swiotlb_free_pages(order); if (xen_io_tlb_start) break; order--; diff --git a/drivers/xen/xen-pciback/conf_space.c b/drivers/xen/xen-pciback/conf_space.c index 75fe3d466515..9c234209d8b5 100644 --- a/drivers/xen/xen-pciback/conf_space.c +++ b/drivers/xen/xen-pciback/conf_space.c @@ -16,8 +16,8 @@ #include "conf_space.h" #include "conf_space_quirks.h" -bool permissive; -module_param(permissive, bool, 0644); +bool xen_pcibk_permissive; +module_param_named(permissive, xen_pcibk_permissive, bool, 0644); /* This is where xen_pcibk_read_config_byte, xen_pcibk_read_config_word, * xen_pcibk_write_config_word, and xen_pcibk_write_config_byte are created. */ @@ -262,7 +262,7 @@ int xen_pcibk_config_write(struct pci_dev *dev, int offset, int size, u32 value) * This means that some fields may still be read-only because * they have entries in the config_field list that intercept * the write and do nothing. */ - if (dev_data->permissive || permissive) { + if (dev_data->permissive || xen_pcibk_permissive) { switch (size) { case 1: err = pci_write_config_byte(dev, offset, diff --git a/drivers/xen/xen-pciback/conf_space.h b/drivers/xen/xen-pciback/conf_space.h index 2e1d73d1d5d0..62461a8ba1d6 100644 --- a/drivers/xen/xen-pciback/conf_space.h +++ b/drivers/xen/xen-pciback/conf_space.h @@ -64,7 +64,7 @@ struct config_field_entry { void *data; }; -extern bool permissive; +extern bool xen_pcibk_permissive; #define OFFSET(cfg_entry) ((cfg_entry)->base_offset+(cfg_entry)->field->offset) diff --git a/drivers/xen/xen-pciback/conf_space_header.c b/drivers/xen/xen-pciback/conf_space_header.c index c2260a0456c9..ad3d17d29c81 100644 --- a/drivers/xen/xen-pciback/conf_space_header.c +++ b/drivers/xen/xen-pciback/conf_space_header.c @@ -118,7 +118,7 @@ static int command_write(struct pci_dev *dev, int offset, u16 value, void *data) cmd->val = value; - if (!permissive && (!dev_data || !dev_data->permissive)) + if (!xen_pcibk_permissive && (!dev_data || !dev_data->permissive)) return 0; /* Only allow the guest to control certain bits. */ diff --git a/drivers/xen/xenbus/xenbus_probe.c b/drivers/xen/xenbus/xenbus_probe.c index 564b31584860..5390a674b5e3 100644 --- a/drivers/xen/xenbus/xenbus_probe.c +++ b/drivers/xen/xenbus/xenbus_probe.c @@ -57,6 +57,7 @@ #include <xen/xen.h> #include <xen/xenbus.h> #include <xen/events.h> +#include <xen/xen-ops.h> #include <xen/page.h> #include <xen/hvm.h> @@ -735,6 +736,30 @@ static int __init xenstored_local_init(void) return err; } +static int xenbus_resume_cb(struct notifier_block *nb, + unsigned long action, void *data) +{ + int err = 0; + + if (xen_hvm_domain()) { + uint64_t v; + + err = hvm_get_parameter(HVM_PARAM_STORE_EVTCHN, &v); + if (!err && v) + xen_store_evtchn = v; + else + pr_warn("Cannot update xenstore event channel: %d\n", + err); + } else + xen_store_evtchn = xen_start_info->store_evtchn; + + return err; +} + +static struct notifier_block xenbus_resume_nb = { + .notifier_call = xenbus_resume_cb, +}; + static int __init xenbus_init(void) { int err = 0; @@ -793,6 +818,10 @@ static int __init xenbus_init(void) goto out_error; } + if ((xen_store_domain_type != XS_LOCAL) && + (xen_store_domain_type != XS_UNKNOWN)) + xen_resume_notifier_register(&xenbus_resume_nb); + #ifdef CONFIG_XEN_COMPAT_XENFS /* * Create xenfs mountpoint in /proc for compatibility with |