Messages in this thread Patch in this message | | | From | Joerg Roedel <> | Subject | [PATCH 7/9] amd-iommu: add function to flush tlb for all devices | Date | Fri, 22 May 2009 14:15:38 +0200 |
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[ impact: be able to flush cache for all devtable entries ]
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com> --- arch/x86/include/asm/amd_iommu.h | 1 + arch/x86/kernel/amd_iommu.c | 18 ++++++++++++++++++ 2 files changed, 19 insertions(+), 0 deletions(-)
diff --git a/arch/x86/include/asm/amd_iommu.h b/arch/x86/include/asm/amd_iommu.h index 1750e1f..262e028 100644 --- a/arch/x86/include/asm/amd_iommu.h +++ b/arch/x86/include/asm/amd_iommu.h @@ -28,6 +28,7 @@ extern int amd_iommu_init_dma_ops(void); extern void amd_iommu_detect(void); extern irqreturn_t amd_iommu_int_handler(int irq, void *data); extern void amd_iommu_flush_all_domains(void); +extern void amd_iommu_flush_all_devices(void); #else static inline int amd_iommu_init(void) { return -ENODEV; } static inline void amd_iommu_detect(void) { } diff --git a/arch/x86/kernel/amd_iommu.c b/arch/x86/kernel/amd_iommu.c index 826ad07..92b0e18 100644 --- a/arch/x86/kernel/amd_iommu.c +++ b/arch/x86/kernel/amd_iommu.c @@ -460,6 +460,24 @@ void amd_iommu_flush_all_domains(void) } } +void amd_iommu_flush_all_devices(void) +{ + struct amd_iommu *iommu; + int i; + + for (i = 0; i <= amd_iommu_last_bdf; ++i) { + if (amd_iommu_pd_table[i] == NULL) + continue; + + iommu = amd_iommu_rlookup_table[i]; + if (!iommu) + continue; + + iommu_queue_inv_dev_entry(iommu, i); + iommu_completion_wait(iommu); + } +} + /**************************************************************************** * * The functions below are used the create the page table mappings for -- 1.6.3.1
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