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Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6

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* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6:
  ACPI/PCI: another multiple _OSC memory leak fix
  x86/PCI: X86_PAT & mprotect
  PCI: enable nv_msi_ht_cap_quirk for ALi bridges
  PCI: Make the intel-iommu_wait_op macro work when jiffies are not running
  ACPI/PCI: handle multiple _OSC
  ACPI/PCI: handle multiple _OSC
  x86/PCI: fix broken ISA DMA
  PCI ACPI: fix uninitialized variable in __pci_osc_support_set
This commit is contained in:
Linus Torvalds 2008-05-13 10:48:35 -07:00
commit 25c55d9720
5 changed files with 89 additions and 39 deletions
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8
arch/x86/kernel/pci-dma.c
View File

@ -385,11 +385,13 @@ dma_alloc_coherent(struct device *dev, size_t size, dma_addr_t *dma_handle,
if (dma_alloc_from_coherent_mem(dev, size, dma_handle, &memory))
return memory;
if (!dev)
if (!dev) {
dev = &fallback_dev;
gfp |= GFP_DMA;
}
dma_mask = dev->coherent_dma_mask;
if (dma_mask == 0)
dma_mask = DMA_32BIT_MASK;
dma_mask = (gfp & GFP_DMA) ? DMA_24BIT_MASK : DMA_32BIT_MASK;
/* Device not DMA able */
if (dev->dma_mask == NULL)
@ -403,7 +405,7 @@ dma_alloc_coherent(struct device *dev, size_t size, dma_addr_t *dma_handle,
larger than 16MB and in this case we have a chance of
finding fitting memory in the next higher zone first. If
not retry with true GFP_DMA. -AK */
if (dma_mask <= DMA_32BIT_MASK)
if (dma_mask <= DMA_32BIT_MASK && !(gfp & GFP_DMA))
gfp |= GFP_DMA32;
#endif

4
arch/x86/pci/i386.c
View File

@ -301,15 +301,13 @@ int pci_mmap_page_range(struct pci_dev *dev, struct vm_area_struct *vma,
prot = pgprot_val(vma->vm_page_prot);
if (pat_wc_enabled && write_combine)
prot |= _PAGE_CACHE_WC;
else if (pat_wc_enabled)
else if (pat_wc_enabled || boot_cpu_data.x86 > 3)
/*
* ioremap() and ioremap_nocache() defaults to UC MINUS for now.
* To avoid attribute conflicts, request UC MINUS here
* aswell.
*/
prot |= _PAGE_CACHE_UC_MINUS;
else if (boot_cpu_data.x86 > 3)
prot |= _PAGE_CACHE_UC;
vma->vm_page_prot = __pgprot(prot);

6
drivers/pci/intel-iommu.c
View File

@ -49,7 +49,7 @@
#define DEFAULT_DOMAIN_ADDRESS_WIDTH 48
#define DMAR_OPERATION_TIMEOUT (HZ*60) /* 1m */
#define DMAR_OPERATION_TIMEOUT ((cycles_t) tsc_khz*10*1000) /* 10sec */
#define DOMAIN_MAX_ADDR(gaw) ((((u64)1) << gaw) - 1)
@ -490,12 +490,12 @@ static int iommu_alloc_root_entry(struct intel_iommu *iommu)
#define IOMMU_WAIT_OP(iommu, offset, op, cond, sts) \
{\
unsigned long start_time = jiffies;\
cycles_t start_time = get_cycles();\
while (1) {\
sts = op (iommu->reg + offset);\
if (cond)\
break;\
if (time_after(jiffies, start_time + DMAR_OPERATION_TIMEOUT))\
if (DMAR_OPERATION_TIMEOUT < (get_cycles() - start_time))\
panic("DMAR hardware is malfunctioning\n");\
cpu_relax();\
}\

109
drivers/pci/pci-acpi.c
View File

@ -19,8 +19,31 @@
#include <linux/pci-acpi.h>
#include "pci.h"
static u32 ctrlset_buf[3] = {0, 0, 0};
static u32 global_ctrlsets = 0;
struct acpi_osc_data {
acpi_handle handle;
u32 ctrlset_buf[3];
u32 global_ctrlsets;
struct list_head sibiling;
};
static LIST_HEAD(acpi_osc_data_list);
static struct acpi_osc_data *acpi_get_osc_data(acpi_handle handle)
{
struct acpi_osc_data *data;
list_for_each_entry(data, &acpi_osc_data_list, sibiling) {
if (data->handle == handle)
return data;
}
data = kzalloc(sizeof(*data), GFP_KERNEL);
if (!data)
return NULL;
INIT_LIST_HEAD(&data->sibiling);
data->handle = handle;
list_add_tail(&data->sibiling, &acpi_osc_data_list);
return data;
}
static u8 OSC_UUID[16] = {0x5B, 0x4D, 0xDB, 0x33, 0xF7, 0x1F, 0x1C, 0x40, 0x96, 0x57, 0x74, 0x41, 0xC0, 0x3D, 0xD7, 0x66};
static acpi_status
@ -37,8 +60,27 @@ acpi_query_osc (
union acpi_object *out_obj;
u32 osc_dw0;
acpi_status *ret_status = (acpi_status *)retval;
struct acpi_osc_data *osc_data;
u32 flags = (unsigned long)context, temp;
acpi_handle tmp;
status = acpi_get_handle(handle, "_OSC", &tmp);
if (ACPI_FAILURE(status))
return status;
osc_data = acpi_get_osc_data(handle);
if (!osc_data) {
printk(KERN_ERR "acpi osc data array is full\n");
return AE_ERROR;
}
osc_data->ctrlset_buf[OSC_SUPPORT_TYPE] |= (flags & OSC_SUPPORT_MASKS);
/* do _OSC query for all possible controls */
temp = osc_data->ctrlset_buf[OSC_CONTROL_TYPE];
osc_data->ctrlset_buf[OSC_QUERY_TYPE] = OSC_QUERY_ENABLE;
osc_data->ctrlset_buf[OSC_CONTROL_TYPE] = OSC_CONTROL_MASKS;
/* Setting up input parameters */
input.count = 4;
input.pointer = in_params;
@ -51,13 +93,11 @@ acpi_query_osc (
in_params[2].integer.value = 3;
in_params[3].type = ACPI_TYPE_BUFFER;
in_params[3].buffer.length = 12;
in_params[3].buffer.pointer = (u8 *)context;
in_params[3].buffer.pointer = (u8 *)osc_data->ctrlset_buf;
status = acpi_evaluate_object(handle, "_OSC", &input, &output);
if (ACPI_FAILURE (status)) {
*ret_status = status;
return status;
}
if (ACPI_FAILURE(status))
goto out_nofree;
out_obj = output.pointer;
if (out_obj->type != ACPI_TYPE_BUFFER) {
@ -76,7 +116,8 @@ acpi_query_osc (
printk(KERN_DEBUG "_OSC invalid revision\n");
if (osc_dw0 & OSC_CAPABILITIES_MASK_ERROR) {
/* Update Global Control Set */
global_ctrlsets = *((u32 *)(out_obj->buffer.pointer+8));
osc_data->global_ctrlsets =
*((u32 *)(out_obj->buffer.pointer + 8));
status = AE_OK;
goto query_osc_out;
}
@ -85,12 +126,21 @@ acpi_query_osc (
}
/* Update Global Control Set */
global_ctrlsets = *((u32 *)(out_obj->buffer.pointer + 8));
osc_data->global_ctrlsets = *((u32 *)(out_obj->buffer.pointer + 8));
status = AE_OK;
query_osc_out:
kfree(output.pointer);
out_nofree:
*ret_status = status;
osc_data->ctrlset_buf[OSC_QUERY_TYPE] = !OSC_QUERY_ENABLE;
osc_data->ctrlset_buf[OSC_CONTROL_TYPE] = temp;
if (ACPI_FAILURE(status)) {
/* no osc support at all */
osc_data->ctrlset_buf[OSC_SUPPORT_TYPE] = 0;
}
return status;
}
@ -165,28 +215,15 @@ run_osc_out:
**/
acpi_status __pci_osc_support_set(u32 flags, const char *hid)
{
u32 temp;
acpi_status retval;
acpi_status retval = AE_NOT_FOUND;
if (!(flags & OSC_SUPPORT_MASKS)) {
return AE_TYPE;
}
ctrlset_buf[OSC_SUPPORT_TYPE] |= (flags & OSC_SUPPORT_MASKS);
/* do _OSC query for all possible controls */
temp = ctrlset_buf[OSC_CONTROL_TYPE];
ctrlset_buf[OSC_QUERY_TYPE] = OSC_QUERY_ENABLE;
ctrlset_buf[OSC_CONTROL_TYPE] = OSC_CONTROL_MASKS;
acpi_get_devices(hid,
acpi_query_osc,
ctrlset_buf,
(void *)(unsigned long)flags,
(void **) &retval );
ctrlset_buf[OSC_QUERY_TYPE] = !OSC_QUERY_ENABLE;
ctrlset_buf[OSC_CONTROL_TYPE] = temp;
if (ACPI_FAILURE(retval)) {
/* no osc support at all */
ctrlset_buf[OSC_SUPPORT_TYPE] = 0;
}
return AE_OK;
}
@ -201,19 +238,31 @@ acpi_status pci_osc_control_set(acpi_handle handle, u32 flags)
{
acpi_status status;
u32 ctrlset;
acpi_handle tmp;
struct acpi_osc_data *osc_data;
status = acpi_get_handle(handle, "_OSC", &tmp);
if (ACPI_FAILURE(status))
return status;
osc_data = acpi_get_osc_data(handle);
if (!osc_data) {
printk(KERN_ERR "acpi osc data array is full\n");
return AE_ERROR;
}
ctrlset = (flags & OSC_CONTROL_MASKS);
if (!ctrlset) {
return AE_TYPE;
}
if (ctrlset_buf[OSC_SUPPORT_TYPE] &&
((global_ctrlsets & ctrlset) != ctrlset)) {
if (osc_data->ctrlset_buf[OSC_SUPPORT_TYPE] &&
((osc_data->global_ctrlsets & ctrlset) != ctrlset)) {
return AE_SUPPORT;
}
ctrlset_buf[OSC_CONTROL_TYPE] |= ctrlset;
status = acpi_run_osc(handle, ctrlset_buf);
osc_data->ctrlset_buf[OSC_CONTROL_TYPE] |= ctrlset;
status = acpi_run_osc(handle, osc_data->ctrlset_buf);
if (ACPI_FAILURE (status)) {
ctrlset_buf[OSC_CONTROL_TYPE] &= ~ctrlset;
osc_data->ctrlset_buf[OSC_CONTROL_TYPE] &= ~ctrlset;
}
return status;

1
drivers/pci/quirks.c
View File

@ -1826,6 +1826,7 @@ static void __devinit nv_msi_ht_cap_quirk(struct pci_dev *dev)
}
}
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_NVIDIA, PCI_ANY_ID, nv_msi_ht_cap_quirk);
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AL, PCI_ANY_ID, nv_msi_ht_cap_quirk);
static void __devinit quirk_msi_intx_disable_bug(struct pci_dev *dev)
{