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| author | FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> | 2008-09-29 00:06:36 +0900 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2008-10-02 11:33:41 +0200 |
| commit | 40becd8d5af03ee7935e79c3fccd0d1f380d95b4 (patch) | |
| tree | 780b673196fc45251e3eb9888cb6271feebbc15a /arch/x86/kernel/amd_iommu.c | |
| parent | 24268245d8ba9270152b2281666099ddc8ca389d (diff) | |
| download | lwn-40becd8d5af03ee7935e79c3fccd0d1f380d95b4.tar.gz lwn-40becd8d5af03ee7935e79c3fccd0d1f380d95b4.zip | |
AMD IOMMU: use iommu_device_max_index
AMD IOMMU can use iommu_device_max_index() instead of the homegrown
function.
Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Acked-by: Joerg Roedel <joerg.roedel@amd.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/x86/kernel/amd_iommu.c')
| -rw-r--r-- | arch/x86/kernel/amd_iommu.c | 10 |
1 files changed, 3 insertions, 7 deletions
diff --git a/arch/x86/kernel/amd_iommu.c b/arch/x86/kernel/amd_iommu.c index c19212191c98..3b346c6f5514 100644 --- a/arch/x86/kernel/amd_iommu.c +++ b/arch/x86/kernel/amd_iommu.c @@ -470,10 +470,6 @@ static int init_unity_mappings_for_device(struct dma_ops_domain *dma_dom, * efficient allocator. * ****************************************************************************/ -static unsigned long dma_mask_to_pages(unsigned long mask) -{ - return PAGE_ALIGN(mask) >> PAGE_SHIFT; -} /* * The address allocator core function. @@ -486,14 +482,14 @@ static unsigned long dma_ops_alloc_addresses(struct device *dev, unsigned long align_mask, u64 dma_mask) { - unsigned long limit = dma_mask_to_pages(dma_mask); + unsigned long limit; unsigned long address; - unsigned long size = dom->aperture_size >> PAGE_SHIFT; unsigned long boundary_size; boundary_size = ALIGN(dma_get_seg_boundary(dev) + 1, PAGE_SIZE) >> PAGE_SHIFT; - limit = limit < size ? limit : size; + limit = iommu_device_max_index(dom->aperture_size >> PAGE_SHIFT, 0, + dma_mask >> PAGE_SHIFT); if (dom->next_bit >= limit) { dom->next_bit = 0; |