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authorLinus Torvalds <torvalds@linux-foundation.org>2008-05-13 19:48:35 +0200
committerLinus Torvalds <torvalds@linux-foundation.org>2008-05-13 19:48:35 +0200
commit25c55d97209090db1a5f601815433f085bd1af78 (patch)
treeb39c158f9df27826d18f8c8dc2e03fb1eed42d40 /arch
parentMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiw... (diff)
parentACPI/PCI: another multiple _OSC memory leak fix (diff)
downloadlinux-25c55d97209090db1a5f601815433f085bd1af78.tar.xz
linux-25c55d97209090db1a5f601815433f085bd1af78.zip
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6
* '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
Diffstat (limited to 'arch')
-rw-r--r--arch/x86/kernel/pci-dma.c8
-rw-r--r--arch/x86/pci/i386.c4
2 files changed, 6 insertions, 6 deletions
diff --git a/arch/x86/kernel/pci-dma.c b/arch/x86/kernel/pci-dma.c
index 0c37f16b6950..c5ef1af8e79d 100644
--- a/arch/x86/kernel/pci-dma.c
+++ b/arch/x86/kernel/pci-dma.c
@@ -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
diff --git a/arch/x86/pci/i386.c b/arch/x86/pci/i386.c
index 8af0f0bae2af..10fb308fded8 100644
--- a/arch/x86/pci/i386.c
+++ b/arch/x86/pci/i386.c
@@ -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);