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| author | David S. Miller <davem@davemloft.net> | 2006-05-23 09:07:22 (GMT) |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2006-05-23 09:07:22 (GMT) |
| commit | 42f142371e48fbc44956d57b4e506bb6ce673cd7 (patch) | |
| tree | cbcf77d8bf8adc923c50e1fd53a8becd81952beb /arch/sparc64 | |
| parent | 353b28bafd1b962359a866ff263a7fad833d29a1 (diff) | |
| download | linux-42f142371e48fbc44956d57b4e506bb6ce673cd7.tar.xz | |
[SPARC64]: Respect gfp_t argument to dma_alloc_coherent().
Using asm-generic/dma-mapping.h does not work because pushing
the call down to pci_alloc_coherent() causes the gfp_t argument
of dma_alloc_coherent() to be ignored.
Fix this by implementing things directly, and adding a gfp_t
argument we can use in the internal call down to the PCI DMA
implementation of pci_alloc_coherent().
This fixes massive memory corruption when using the sound driver
layer, which passes things like __GFP_COMP down into these
routines and (correctly) expects that to work.
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'arch/sparc64')
| -rw-r--r-- | arch/sparc64/kernel/pci_iommu.c | 4 | ||||
| -rw-r--r-- | arch/sparc64/kernel/pci_sun4v.c | 4 |
2 files changed, 4 insertions, 4 deletions
diff --git a/arch/sparc64/kernel/pci_iommu.c b/arch/sparc64/kernel/pci_iommu.c index 8efbc13..82e5455 100644 --- a/arch/sparc64/kernel/pci_iommu.c +++ b/arch/sparc64/kernel/pci_iommu.c @@ -218,7 +218,7 @@ static inline void iommu_free_ctx(struct pci_iommu *iommu, int ctx) * DMA for PCI device PDEV. Return non-NULL cpu-side address if * successful and set *DMA_ADDRP to the PCI side dma address. */ -static void *pci_4u_alloc_consistent(struct pci_dev *pdev, size_t size, dma_addr_t *dma_addrp) +static void *pci_4u_alloc_consistent(struct pci_dev *pdev, size_t size, dma_addr_t *dma_addrp, gfp_t gfp) { struct pcidev_cookie *pcp; struct pci_iommu *iommu; @@ -232,7 +232,7 @@ static void *pci_4u_alloc_consistent(struct pci_dev *pdev, size_t size, dma_addr if (order >= 10) return NULL; - first_page = __get_free_pages(GFP_ATOMIC, order); + first_page = __get_free_pages(gfp, order); if (first_page == 0UL) return NULL; memset((char *)first_page, 0, PAGE_SIZE << order); diff --git a/arch/sparc64/kernel/pci_sun4v.c b/arch/sparc64/kernel/pci_sun4v.c index 9e94db2..2b7a1f3 100644 --- a/arch/sparc64/kernel/pci_sun4v.c +++ b/arch/sparc64/kernel/pci_sun4v.c @@ -154,7 +154,7 @@ static void pci_arena_free(struct pci_iommu_arena *arena, unsigned long base, un __clear_bit(i, arena->map); } -static void *pci_4v_alloc_consistent(struct pci_dev *pdev, size_t size, dma_addr_t *dma_addrp) +static void *pci_4v_alloc_consistent(struct pci_dev *pdev, size_t size, dma_addr_t *dma_addrp, gfp_t gfp) { struct pcidev_cookie *pcp; struct pci_iommu *iommu; @@ -169,7 +169,7 @@ static void *pci_4v_alloc_consistent(struct pci_dev *pdev, size_t size, dma_addr npages = size >> IO_PAGE_SHIFT; - first_page = __get_free_pages(GFP_ATOMIC, order); + first_page = __get_free_pages(gfp, order); if (unlikely(first_page == 0UL)) return NULL; |