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| author | FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> | 2009-10-27 16:34:44 +0900 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2009-11-08 13:12:26 +0100 |
| commit | 338bac527ed0e35b4cb50390972f15d3cbce92ca (patch) | |
| tree | c959878378523ba7f3bb0e30e98336549cadbdc0 /arch/x86/kernel/pci-gart_64.c | |
| parent | 7c9abfb884b8737f0afdc8a88bcea77526f0da87 (diff) | |
| download | lwn-338bac527ed0e35b4cb50390972f15d3cbce92ca.tar.gz lwn-338bac527ed0e35b4cb50390972f15d3cbce92ca.zip | |
x86: Use x86_platform for iommu_shutdown
This patch cleans up pci_iommu_shutdown() a bit to use
x86_platform (similar to how IA64 initializes an IOMMU driver).
This adds iommu_shutdown() to x86_platform to avoid calling
every IOMMUs' shutdown functions in pci_iommu_shutdown() in
order. The IOMMU shutdown functions are platform specific (we
don't have multiple different IOMMU hardware) so the current way
is pointless.
An IOMMU driver sets x86_platform.iommu_shutdown to the shutdown
function if necessary.
Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Cc: joerg.roedel@amd.com
LKML-Reference: <20091027163358F.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 | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/arch/x86/kernel/pci-gart_64.c b/arch/x86/kernel/pci-gart_64.c index a7f1b64f86e0..a9bcdf7c8801 100644 --- a/arch/x86/kernel/pci-gart_64.c +++ b/arch/x86/kernel/pci-gart_64.c @@ -39,6 +39,7 @@ #include <asm/swiotlb.h> #include <asm/dma.h> #include <asm/k8.h> +#include <asm/x86_init.h> static unsigned long iommu_bus_base; /* GART remapping area (physical) */ static unsigned long iommu_size; /* size of remapping area bytes */ @@ -688,12 +689,12 @@ static struct dma_map_ops gart_dma_ops = { .free_coherent = gart_free_coherent, }; -void gart_iommu_shutdown(void) +static void gart_iommu_shutdown(void) { struct pci_dev *dev; int i; - if (no_agp && (dma_ops != &gart_dma_ops)) + if (no_agp) return; for (i = 0; i < num_k8_northbridges; i++) { @@ -838,6 +839,7 @@ void __init gart_iommu_init(void) flush_gart(); dma_ops = &gart_dma_ops; + x86_platform.iommu_shutdown = gart_iommu_shutdown; } void __init gart_parse_options(char *p) |