summaryrefslogtreecommitdiff
path: root/arch
diff options
context:
space:
mode:
authorLinus Torvalds <torvalds@linux-foundation.org>2013-11-14 14:02:00 +0900
committerLinus Torvalds <torvalds@linux-foundation.org>2013-11-14 14:02:00 +0900
commit2f466d33f5f60542d3d82c0477de5863b22c94b9 (patch)
tree839972958941d55852a9af270b04af09e3147116 /arch
parentf9300eaaac1ca300083ad41937923a90cc3a2394 (diff)
parenteaaeb1cb33310dea6c3fa45d8bfc63e5a1d0a846 (diff)
Merge tag 'pci-v3.13-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci
Pull PCI changes from Bjorn Helgaas: "Resource management - Fix host bridge window coalescing (Alexey Neyman) - Pass type, width, and prefetchability for window alignment (Wei Yang) PCI device hotplug - Convert acpiphp, acpiphp_ibm to dynamic debug (Lan Tianyu) Power management - Remove pci_pm_complete() (Liu Chuansheng) MSI - Fail initialization if device is not in PCI_D0 (Yijing Wang) MPS (Max Payload Size) - Use pcie_get_mps() and pcie_set_mps() to simplify code (Yijing Wang) - Use pcie_set_readrq() to simplify code (Yijing Wang) - Use cached pci_dev->pcie_mpss to simplify code (Yijing Wang) SR-IOV - Enable upstream bridges even for VFs on virtual buses (Bjorn Helgaas) - Use pci_is_root_bus() to avoid catching virtual buses (Wei Yang) Virtualization - Add x86 MSI masking ops (Konrad Rzeszutek Wilk) Freescale i.MX6 - Support i.MX6 PCIe controller (Sean Cross) - Increase link startup timeout (Marek Vasut) - Probe PCIe in fs_initcall() (Marek Vasut) - Fix imprecise abort handler (Tim Harvey) - Remove redundant of_match_ptr (Sachin Kamat) Renesas R-Car - Support Gen2 internal PCIe controller (Valentine Barshak) Samsung Exynos - Add MSI support (Jingoo Han) - Turn off power when link fails (Jingoo Han) - Add Jingoo Han as maintainer (Jingoo Han) - Add clk_disable_unprepare() on error path (Wei Yongjun) - Remove redundant of_match_ptr (Sachin Kamat) Synopsys DesignWare - Add irq_create_mapping() (Pratyush Anand) - Add header guards (Seungwon Jeon) Miscellaneous - Enable native PCIe services by default on non-ACPI (Andrew Murray) - Cleanup _OSC usage and messages (Bjorn Helgaas) - Remove pcibios_last_bus boot option on non-x86 (Bjorn Helgaas) - Convert bus code to use bus_, drv_, and dev_groups (Greg Kroah-Hartman) - Remove unused pci_mem_start (Myron Stowe) - Make sysfs functions static (Sachin Kamat) - Warn on invalid return from driver probe (Stephen M. Cameron) - Remove Intel Haswell D3 delays (Todd E Brandt) - Call pci_set_master() in core if driver doesn't do it (Yinghai Lu) - Use pci_is_pcie() to simplify code (Yijing Wang) - Use PCIe capability accessors to simplify code (Yijing Wang) - Use cached pci_dev->pcie_cap to simplify code (Yijing Wang) - Removed unused "is_pcie" from struct pci_dev (Yijing Wang) - Simplify sysfs CPU affinity implementation (Yijing Wang)" * tag 'pci-v3.13-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: (79 commits) PCI: Enable upstream bridges even for VFs on virtual buses PCI: Add pci_upstream_bridge() PCI: Add x86_msi.msi_mask_irq() and msix_mask_irq() PCI: Warn on driver probe return value greater than zero PCI: Drop warning about drivers that don't use pci_set_master() PCI: Workaround missing pci_set_master in pci drivers powerpc/pci: Use pci_is_pcie() to simplify code [fix] PCI: Update pcie_ports 'auto' behavior for non-ACPI platforms PCI: imx6: Probe the PCIe in fs_initcall() PCI: Add R-Car Gen2 internal PCI support PCI: imx6: Remove redundant of_match_ptr PCI: Report pci_pme_active() kmalloc failure mn10300/PCI: Remove useless pcibios_last_bus frv/PCI: Remove pcibios_last_bus PCI: imx6: Increase link startup timeout PCI: exynos: Remove redundant of_match_ptr PCI: imx6: Fix imprecise abort handler PCI: Fail MSI/MSI-X initialization if device is not in PCI_D0 PCI: imx6: Remove redundant dev_err() in imx6_pcie_probe() x86/PCI: Coalesce multiple overlapping host bridge windows ...
Diffstat (limited to 'arch')
-rw-r--r--arch/cris/include/asm/pci.h1
-rw-r--r--arch/frv/mb93090-mb00/pci-frv.h1
-rw-r--r--arch/frv/mb93090-mb00/pci-vdk.c36
-rw-r--r--arch/mn10300/include/asm/pci.h1
-rw-r--r--arch/mn10300/kernel/setup.c3
-rw-r--r--arch/mn10300/unit-asb2305/pci-asb2305.h1
-rw-r--r--arch/mn10300/unit-asb2305/pci.c5
-rw-r--r--arch/powerpc/kernel/eeh.c5
-rw-r--r--arch/powerpc/sysdev/fsl_pci.c2
-rw-r--r--arch/tile/kernel/pci.c7
-rw-r--r--arch/x86/include/asm/x86_init.h3
-rw-r--r--arch/x86/kernel/x86_init.c10
-rw-r--r--arch/x86/pci/acpi.c8
-rw-r--r--arch/x86/pci/fixup.c18
-rw-r--r--arch/x86/pci/xen.c13
15 files changed, 44 insertions, 70 deletions
diff --git a/arch/cris/include/asm/pci.h b/arch/cris/include/asm/pci.h
index 146da904cdd8..f666734926d5 100644
--- a/arch/cris/include/asm/pci.h
+++ b/arch/cris/include/asm/pci.h
@@ -11,7 +11,6 @@
#define pcibios_assign_all_busses(void) 1
-extern unsigned long pci_mem_start;
#define PCIBIOS_MIN_IO 0x1000
#define PCIBIOS_MIN_MEM 0x10000000
diff --git a/arch/frv/mb93090-mb00/pci-frv.h b/arch/frv/mb93090-mb00/pci-frv.h
index 76c4e73d643d..a7e487fe76ed 100644
--- a/arch/frv/mb93090-mb00/pci-frv.h
+++ b/arch/frv/mb93090-mb00/pci-frv.h
@@ -30,7 +30,6 @@ void pcibios_resource_survey(void);
/* pci-vdk.c */
-extern int __nongpreldata pcibios_last_bus;
extern struct pci_ops *__nongpreldata pci_root_ops;
/* pci-irq.c */
diff --git a/arch/frv/mb93090-mb00/pci-vdk.c b/arch/frv/mb93090-mb00/pci-vdk.c
index deb67843693c..efa5d65b0007 100644
--- a/arch/frv/mb93090-mb00/pci-vdk.c
+++ b/arch/frv/mb93090-mb00/pci-vdk.c
@@ -25,7 +25,6 @@
unsigned int __nongpreldata pci_probe = 1;
-int __nongpreldata pcibios_last_bus = -1;
struct pci_ops *__nongpreldata pci_root_ops;
/*
@@ -220,37 +219,6 @@ static struct pci_ops * __init pci_check_direct(void)
}
/*
- * Discover remaining PCI buses in case there are peer host bridges.
- * We use the number of last PCI bus provided by the PCI BIOS.
- */
-static void __init pcibios_fixup_peer_bridges(void)
-{
- struct pci_bus bus;
- struct pci_dev dev;
- int n;
- u16 l;
-
- if (pcibios_last_bus <= 0 || pcibios_last_bus >= 0xff)
- return;
- printk("PCI: Peer bridge fixup\n");
- for (n=0; n <= pcibios_last_bus; n++) {
- if (pci_find_bus(0, n))
- continue;
- bus.number = n;
- bus.ops = pci_root_ops;
- dev.bus = &bus;
- for(dev.devfn=0; dev.devfn<256; dev.devfn += 8)
- if (!pci_read_config_word(&dev, PCI_VENDOR_ID, &l) &&
- l != 0x0000 && l != 0xffff) {
- printk("Found device at %02x:%02x [%04x]\n", n, dev.devfn, l);
- printk("PCI: Discovered peer bus %02x\n", n);
- pci_scan_bus(n, pci_root_ops, NULL);
- break;
- }
- }
-}
-
-/*
* Exceptions for specific devices. Usually work-arounds for fatal design flaws.
*/
@@ -418,7 +386,6 @@ int __init pcibios_init(void)
pci_scan_root_bus(NULL, 0, pci_root_ops, NULL, &resources);
pcibios_irq_init();
- pcibios_fixup_peer_bridges();
pcibios_fixup_irqs();
pcibios_resource_survey();
@@ -432,9 +399,6 @@ char * __init pcibios_setup(char *str)
if (!strcmp(str, "off")) {
pci_probe = 0;
return NULL;
- } else if (!strncmp(str, "lastbus=", 8)) {
- pcibios_last_bus = simple_strtol(str+8, NULL, 0);
- return NULL;
}
return str;
}
diff --git a/arch/mn10300/include/asm/pci.h b/arch/mn10300/include/asm/pci.h
index 6f31cc0f1a87..166323824683 100644
--- a/arch/mn10300/include/asm/pci.h
+++ b/arch/mn10300/include/asm/pci.h
@@ -44,7 +44,6 @@ extern void unit_pci_init(void);
#define pcibios_assign_all_busses() 0
#endif
-extern unsigned long pci_mem_start;
#define PCIBIOS_MIN_IO 0xBE000004
#define PCIBIOS_MIN_MEM 0xB8000000
diff --git a/arch/mn10300/kernel/setup.c b/arch/mn10300/kernel/setup.c
index ebac9c11f796..2ad7f32fa122 100644
--- a/arch/mn10300/kernel/setup.c
+++ b/arch/mn10300/kernel/setup.c
@@ -35,9 +35,6 @@
struct mn10300_cpuinfo boot_cpu_data;
-/* For PCI or other memory-mapped resources */
-unsigned long pci_mem_start = 0x18000000;
-
static char __initdata cmd_line[COMMAND_LINE_SIZE];
char redboot_command_line[COMMAND_LINE_SIZE] =
"console=ttyS0,115200 root=/dev/mtdblock3 rw";
diff --git a/arch/mn10300/unit-asb2305/pci-asb2305.h b/arch/mn10300/unit-asb2305/pci-asb2305.h
index 7fa66a0e4624..9e17aca5a2a1 100644
--- a/arch/mn10300/unit-asb2305/pci-asb2305.h
+++ b/arch/mn10300/unit-asb2305/pci-asb2305.h
@@ -35,7 +35,6 @@ extern void pcibios_resource_survey(void);
/* pci.c */
-extern int pcibios_last_bus;
extern struct pci_ops *pci_root_ops;
extern struct irq_routing_table *pcibios_get_irq_routing_table(void);
diff --git a/arch/mn10300/unit-asb2305/pci.c b/arch/mn10300/unit-asb2305/pci.c
index e37fac0461f3..6b4339f8c9c2 100644
--- a/arch/mn10300/unit-asb2305/pci.c
+++ b/arch/mn10300/unit-asb2305/pci.c
@@ -24,7 +24,6 @@
unsigned int pci_probe = 1;
-int pcibios_last_bus = -1;
struct pci_ops *pci_root_ops;
/*
@@ -392,10 +391,6 @@ char *__init pcibios_setup(char *str)
if (!strcmp(str, "off")) {
pci_probe = 0;
return NULL;
-
- } else if (!strncmp(str, "lastbus=", 8)) {
- pcibios_last_bus = simple_strtol(str+8, NULL, 0);
- return NULL;
}
return str;
diff --git a/arch/powerpc/kernel/eeh.c b/arch/powerpc/kernel/eeh.c
index 1fb331db34c8..671302065347 100644
--- a/arch/powerpc/kernel/eeh.c
+++ b/arch/powerpc/kernel/eeh.c
@@ -189,14 +189,13 @@ static size_t eeh_gather_pci_data(struct eeh_dev *edev, char * buf, size_t len)
}
/* If PCI-E capable, dump PCI-E cap 10, and the AER */
- cap = pci_find_capability(dev, PCI_CAP_ID_EXP);
- if (cap) {
+ if (pci_is_pcie(dev)) {
n += scnprintf(buf+n, len-n, "pci-e cap10:\n");
printk(KERN_WARNING
"EEH: PCI-E capabilities and status follow:\n");
for (i=0; i<=8; i++) {
- eeh_ops->read_config(dn, cap+4*i, 4, &cfg);
+ eeh_ops->read_config(dn, dev->pcie_cap+4*i, 4, &cfg);
n += scnprintf(buf+n, len-n, "%02x:%x\n", 4*i, cfg);
printk(KERN_WARNING "EEH: PCI-E %02x: %08x\n", i, cfg);
}
diff --git a/arch/powerpc/sysdev/fsl_pci.c b/arch/powerpc/sysdev/fsl_pci.c
index 21039634d1d0..4dfd61df8aba 100644
--- a/arch/powerpc/sysdev/fsl_pci.c
+++ b/arch/powerpc/sysdev/fsl_pci.c
@@ -45,7 +45,7 @@ static void quirk_fsl_pcie_early(struct pci_dev *dev)
u8 hdr_type;
/* if we aren't a PCIe don't bother */
- if (!pci_find_capability(dev, PCI_CAP_ID_EXP))
+ if (!pci_is_pcie(dev))
return;
/* if we aren't in host mode don't bother */
diff --git a/arch/tile/kernel/pci.c b/arch/tile/kernel/pci.c
index b7180e6e900d..c45593db7718 100644
--- a/arch/tile/kernel/pci.c
+++ b/arch/tile/kernel/pci.c
@@ -251,15 +251,12 @@ static void fixup_read_and_payload_sizes(void)
/* Scan for the smallest maximum payload size. */
for_each_pci_dev(dev) {
u32 devcap;
- int max_payload;
if (!pci_is_pcie(dev))
continue;
- pcie_capability_read_dword(dev, PCI_EXP_DEVCAP, &devcap);
- max_payload = devcap & PCI_EXP_DEVCAP_PAYLOAD;
- if (max_payload < smallest_max_payload)
- smallest_max_payload = max_payload;
+ if (dev->pcie_mpss < smallest_max_payload)
+ smallest_max_payload = dev->pcie_mpss;
}
/* Now, set the max_payload_size for all devices to that value. */
diff --git a/arch/x86/include/asm/x86_init.h b/arch/x86/include/asm/x86_init.h
index 828a1565ba57..0f1be11e43d2 100644
--- a/arch/x86/include/asm/x86_init.h
+++ b/arch/x86/include/asm/x86_init.h
@@ -172,6 +172,7 @@ struct x86_platform_ops {
struct pci_dev;
struct msi_msg;
+struct msi_desc;
struct x86_msi_ops {
int (*setup_msi_irqs)(struct pci_dev *dev, int nvec, int type);
@@ -182,6 +183,8 @@ struct x86_msi_ops {
void (*teardown_msi_irqs)(struct pci_dev *dev);
void (*restore_msi_irqs)(struct pci_dev *dev, int irq);
int (*setup_hpet_msi)(unsigned int irq, unsigned int id);
+ u32 (*msi_mask_irq)(struct msi_desc *desc, u32 mask, u32 flag);
+ u32 (*msix_mask_irq)(struct msi_desc *desc, u32 flag);
};
struct IO_APIC_route_entry;
diff --git a/arch/x86/kernel/x86_init.c b/arch/x86/kernel/x86_init.c
index 8ce0072cd700..021783b1f46a 100644
--- a/arch/x86/kernel/x86_init.c
+++ b/arch/x86/kernel/x86_init.c
@@ -116,6 +116,8 @@ struct x86_msi_ops x86_msi = {
.teardown_msi_irqs = default_teardown_msi_irqs,
.restore_msi_irqs = default_restore_msi_irqs,
.setup_hpet_msi = default_setup_hpet_msi,
+ .msi_mask_irq = default_msi_mask_irq,
+ .msix_mask_irq = default_msix_mask_irq,
};
/* MSI arch specific hooks */
@@ -138,6 +140,14 @@ void arch_restore_msi_irqs(struct pci_dev *dev, int irq)
{
x86_msi.restore_msi_irqs(dev, irq);
}
+u32 arch_msi_mask_irq(struct msi_desc *desc, u32 mask, u32 flag)
+{
+ return x86_msi.msi_mask_irq(desc, mask, flag);
+}
+u32 arch_msix_mask_irq(struct msi_desc *desc, u32 flag)
+{
+ return x86_msi.msix_mask_irq(desc, flag);
+}
#endif
struct x86_io_apic_ops x86_io_apic_ops = {
diff --git a/arch/x86/pci/acpi.c b/arch/x86/pci/acpi.c
index b30e937689d6..7fb24e53d4c8 100644
--- a/arch/x86/pci/acpi.c
+++ b/arch/x86/pci/acpi.c
@@ -354,12 +354,12 @@ static void coalesce_windows(struct pci_root_info *info, unsigned long type)
* the kernel resource tree doesn't allow overlaps.
*/
if (resource_overlaps(res1, res2)) {
- res1->start = min(res1->start, res2->start);
- res1->end = max(res1->end, res2->end);
+ res2->start = min(res1->start, res2->start);
+ res2->end = max(res1->end, res2->end);
dev_info(&info->bridge->dev,
"host bridge window expanded to %pR; %pR ignored\n",
- res1, res2);
- res2->flags = 0;
+ res2, res1);
+ res1->flags = 0;
}
}
}
diff --git a/arch/x86/pci/fixup.c b/arch/x86/pci/fixup.c
index f5809fa2753e..b046e070e088 100644
--- a/arch/x86/pci/fixup.c
+++ b/arch/x86/pci/fixup.c
@@ -231,7 +231,7 @@ static int quirk_pcie_aspm_write(struct pci_bus *bus, unsigned int devfn, int wh
offset = quirk_aspm_offset[GET_INDEX(bus->self->device, devfn)];
if ((offset) && (where == offset))
- value = value & 0xfffffffc;
+ value = value & ~PCI_EXP_LNKCTL_ASPMC;
return raw_pci_write(pci_domain_nr(bus), bus->number,
devfn, where, size, value);
@@ -252,7 +252,7 @@ static struct pci_ops quirk_pcie_aspm_ops = {
*/
static void pcie_rootport_aspm_quirk(struct pci_dev *pdev)
{
- int cap_base, i;
+ int i;
struct pci_bus *pbus;
struct pci_dev *dev;
@@ -278,7 +278,7 @@ static void pcie_rootport_aspm_quirk(struct pci_dev *pdev)
for (i = GET_INDEX(pdev->device, 0); i <= GET_INDEX(pdev->device, 7); ++i)
quirk_aspm_offset[i] = 0;
- pbus->ops = pbus->parent->ops;
+ pci_bus_set_ops(pbus, pbus->parent->ops);
} else {
/*
* If devices are attached to the root port at power-up or
@@ -286,13 +286,15 @@ static void pcie_rootport_aspm_quirk(struct pci_dev *pdev)
* each root port to save the register offsets and replace the
* bus ops.
*/
- list_for_each_entry(dev, &pbus->devices, bus_list) {
+ list_for_each_entry(dev, &pbus->devices, bus_list)
/* There are 0 to 8 devices attached to this bus */
- cap_base = pci_find_capability(dev, PCI_CAP_ID_EXP);
- quirk_aspm_offset[GET_INDEX(pdev->device, dev->devfn)] = cap_base + 0x10;
- }
- pbus->ops = &quirk_pcie_aspm_ops;
+ quirk_aspm_offset[GET_INDEX(pdev->device, dev->devfn)] =
+ dev->pcie_cap + PCI_EXP_LNKCTL;
+
+ pci_bus_set_ops(pbus, &quirk_pcie_aspm_ops);
+ dev_info(&pbus->dev, "writes to ASPM control bits will be ignored\n");
}
+
}
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_MCH_PA, pcie_rootport_aspm_quirk);
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_MCH_PA1, pcie_rootport_aspm_quirk);
diff --git a/arch/x86/pci/xen.c b/arch/x86/pci/xen.c
index 48e8461057ba..5eee4959785d 100644
--- a/arch/x86/pci/xen.c
+++ b/arch/x86/pci/xen.c
@@ -382,7 +382,14 @@ static void xen_teardown_msi_irq(unsigned int irq)
{
xen_destroy_irq(irq);
}
-
+static u32 xen_nop_msi_mask_irq(struct msi_desc *desc, u32 mask, u32 flag)
+{
+ return 0;
+}
+static u32 xen_nop_msix_mask_irq(struct msi_desc *desc, u32 flag)
+{
+ return 0;
+}
#endif
int __init pci_xen_init(void)
@@ -406,6 +413,8 @@ int __init pci_xen_init(void)
x86_msi.setup_msi_irqs = xen_setup_msi_irqs;
x86_msi.teardown_msi_irq = xen_teardown_msi_irq;
x86_msi.teardown_msi_irqs = xen_teardown_msi_irqs;
+ x86_msi.msi_mask_irq = xen_nop_msi_mask_irq;
+ x86_msi.msix_mask_irq = xen_nop_msix_mask_irq;
#endif
return 0;
}
@@ -485,6 +494,8 @@ int __init pci_xen_initial_domain(void)
x86_msi.setup_msi_irqs = xen_initdom_setup_msi_irqs;
x86_msi.teardown_msi_irq = xen_teardown_msi_irq;
x86_msi.restore_msi_irqs = xen_initdom_restore_msi_irqs;
+ x86_msi.msi_mask_irq = xen_nop_msi_mask_irq;
+ x86_msi.msix_mask_irq = xen_nop_msix_mask_irq;
#endif
xen_setup_acpi_sci();
__acpi_register_gsi = acpi_register_gsi_xen;