From 338bac527ed0e35b4cb50390972f15d3cbce92ca Mon Sep 17 00:00:00 2001 From: FUJITA Tomonori Date: Tue, 27 Oct 2009 16:34:44 +0900 Subject: 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 Cc: joerg.roedel@amd.com LKML-Reference: <20091027163358F.fujita.tomonori@lab.ntt.co.jp> Signed-off-by: Ingo Molnar --- arch/x86/kernel/pci-gart_64.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) (limited to 'arch/x86/kernel/pci-gart_64.c') 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 #include #include +#include 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) -- cgit v1.2.3