diff options
| author | Thomas Gleixner <tglx@linutronix.de> | 2008-05-17 17:12:24 +0200 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2008-05-17 17:12:24 +0200 |
| commit | 538f0fd0f210c2ce5c585799f18d0e5c7cf6155e (patch) | |
| tree | e9fa2b10ce5d92ac6bcd8ac55af1cd97bda3ec5d /arch/x86/kernel/pci-dma.c | |
| parent | 3bb6fbf9969a8bbe4892968659239273d092e78a (diff) | |
| parent | f26a3988917913b3d11b2bd741601a2c64ab9204 (diff) | |
Merge branch 'linus' into x86/gart
Diffstat (limited to 'arch/x86/kernel/pci-dma.c')
| -rw-r--r-- | arch/x86/kernel/pci-dma.c | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/arch/x86/kernel/pci-dma.c b/arch/x86/kernel/pci-dma.c index 81862d0c7a9..7747bc82b11 100644 --- a/arch/x86/kernel/pci-dma.c +++ b/arch/x86/kernel/pci-dma.c @@ -386,11 +386,13 @@ 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) @@ -404,7 +406,7 @@ 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 |