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| author | FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> | 2009-11-10 10:46:14 (GMT) |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2009-11-10 11:31:23 (GMT) |
| commit | de957628ce7c84764ff41331111036b3ae5bad0f (patch) | |
| tree | d13dcb1c152e738e079a03fc3bb0b87d1a4d3dab /arch/x86/kernel/pci-gart_64.c | |
| parent | d7b9f7be216b04ff9d108f856bc03d96e7b3439c (diff) | |
| download | linux-de957628ce7c84764ff41331111036b3ae5bad0f.tar.xz | |
x86: GART: Convert gart_iommu_hole_init() to use iommu_init hook
This changes gart_iommu_hole_init() to set gart_iommu_init() to
iommu_init hook if gart_iommu_hole_init() finds the GART IOMMU.
We can kill the code to check if we found the IOMMU in
gart_iommu_init() since gart_iommu_hole_init() sets
gart_iommu_init() only when it found the IOMMU.
Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Cc: chrisw@sous-sol.org
Cc: dwmw2@infradead.org
Cc: joerg.roedel@amd.com
Cc: muli@il.ibm.com
LKML-Reference: <1257849980-22640-4-git-send-email-fujita.tomonori@lab.ntt.co.jp>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/x86/kernel/pci-gart_64.c')
| -rw-r--r-- | arch/x86/kernel/pci-gart_64.c | 15 |
1 files changed, 5 insertions, 10 deletions
diff --git a/arch/x86/kernel/pci-gart_64.c b/arch/x86/kernel/pci-gart_64.c index eb46ab3..0410bd3 100644 --- a/arch/x86/kernel/pci-gart_64.c +++ b/arch/x86/kernel/pci-gart_64.c @@ -709,7 +709,7 @@ static void gart_iommu_shutdown(void) } } -void __init gart_iommu_init(void) +int __init gart_iommu_init(void) { struct agp_kern_info info; unsigned long iommu_start; @@ -719,7 +719,7 @@ void __init gart_iommu_init(void) long i; if (cache_k8_northbridges() < 0 || num_k8_northbridges == 0) - return; + return 0; #ifndef CONFIG_AGP_AMD64 no_agp = 1; @@ -731,13 +731,6 @@ void __init gart_iommu_init(void) (agp_copy_info(agp_bridge, &info) < 0); #endif - if (swiotlb) - return; - - /* Did we detect a different HW IOMMU? */ - if (iommu_detected && !gart_iommu_aperture) - return; - if (no_iommu || (!force_iommu && max_pfn <= MAX_DMA32_PFN) || !gart_iommu_aperture || @@ -747,7 +740,7 @@ void __init gart_iommu_init(void) "but GART IOMMU not available.\n"); printk(KERN_WARNING "falling back to iommu=soft.\n"); } - return; + return 0; } /* need to map that range */ @@ -840,6 +833,8 @@ void __init gart_iommu_init(void) flush_gart(); dma_ops = &gart_dma_ops; x86_platform.iommu_shutdown = gart_iommu_shutdown; + + return 0; } void __init gart_parse_options(char *p) |