diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/dma/ioat_dma.c | 5 | ||||
| -rw-r--r-- | drivers/idle/i7300_idle.c | 72 |
2 files changed, 6 insertions, 71 deletions
diff --git a/drivers/dma/ioat_dma.c b/drivers/dma/ioat_dma.c index f8396cafa05f..fd1631d0a795 100644 --- a/drivers/dma/ioat_dma.c +++ b/drivers/dma/ioat_dma.c @@ -33,6 +33,7 @@ #include <linux/delay.h> #include <linux/dma-mapping.h> #include <linux/workqueue.h> +#include <linux/i7300_idle.h> #include "ioatdma.h" #include "ioatdma_registers.h" #include "ioatdma_hw.h" @@ -172,7 +173,9 @@ static int ioat_dma_enumerate_channels(struct ioatdma_device *device) xfercap = (xfercap_scale == 0 ? -1 : (1UL << xfercap_scale)); #if CONFIG_I7300_IDLE_IOAT_CHANNEL - device->common.chancnt--; + if (i7300_idle_platform_probe(NULL, NULL) == 0) { + device->common.chancnt--; + } #endif for (i = 0; i < device->common.chancnt; i++) { ioat_chan = kzalloc(sizeof(*ioat_chan), GFP_KERNEL); diff --git a/drivers/idle/i7300_idle.c b/drivers/idle/i7300_idle.c index 59d1bbc3cd3c..79d47f284cd6 100644 --- a/drivers/idle/i7300_idle.c +++ b/drivers/idle/i7300_idle.c @@ -25,6 +25,7 @@ #include <linux/delay.h> #include <linux/debugfs.h> #include <linux/stop_machine.h> +#include <linux/i7300_idle.h> #include <asm/idle.h> @@ -505,77 +506,8 @@ static struct notifier_block i7300_idle_nb = { .notifier_call = i7300_idle_notifier, }; -/* - * I/O AT controls (PCI bus 0 device 8 function 0) - * DIMM controls (PCI bus 0 device 16 function 1) - */ -#define IOAT_BUS 0 -#define IOAT_DEVFN PCI_DEVFN(8, 0) -#define MEMCTL_BUS 0 -#define MEMCTL_DEVFN PCI_DEVFN(16, 1) - -struct fbd_ioat { - unsigned int vendor; - unsigned int ioat_dev; -}; - -/* - * The i5000 chip-set has the same hooks as the i7300 - * but support is disabled by default because this driver - * has not been validated on that platform. - */ -#define SUPPORT_I5000 0 - -static const struct fbd_ioat fbd_ioat_list[] = { - {PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_IOAT_CNB}, -#if SUPPORT_I5000 - {PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_IOAT}, -#endif - {0, 0} -}; - -/* table of devices that work with this driver */ -static const struct pci_device_id pci_tbl[] = { - { PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_FBD_CNB) }, -#if SUPPORT_I5000 - { PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_5000_ERR) }, -#endif - { } /* Terminating entry */ -}; - MODULE_DEVICE_TABLE(pci, pci_tbl); -/* Check for known platforms with I/O-AT */ -static int __init i7300_idle_platform_probe(void) -{ - int i; - - fbd_dev = pci_get_bus_and_slot(MEMCTL_BUS, MEMCTL_DEVFN); - if (!fbd_dev) - return -ENODEV; - - for (i = 0; pci_tbl[i].vendor != 0; i++) { - if (fbd_dev->vendor == pci_tbl[i].vendor && - fbd_dev->device == pci_tbl[i].device) { - break; - } - } - if (pci_tbl[i].vendor == 0) - return -ENODEV; - - ioat_dev = pci_get_bus_and_slot(IOAT_BUS, IOAT_DEVFN); - if (!ioat_dev) - return -ENODEV; - - for (i = 0; fbd_ioat_list[i].vendor != 0; i++) { - if (ioat_dev->vendor == fbd_ioat_list[i].vendor && - ioat_dev->device == fbd_ioat_list[i].ioat_dev) { - return 0; - } - } - return -ENODEV; -} - int stats_open_generic(struct inode *inode, struct file *fp) { fp->private_data = inode->i_private; @@ -617,7 +549,7 @@ static int __init i7300_idle_init(void) cpus_clear(idle_cpumask); total_us = 0; - if (i7300_idle_platform_probe()) + if (i7300_idle_platform_probe(&fbd_dev, &ioat_dev)) return -ENODEV; if (i7300_idle_thrt_save()) |