diff options
| author | Hiroshi Doyu <hdoyu@nvidia.com> | 2013-04-03 11:49:20 +0300 |
|---|---|---|
| committer | Harshada Kale <hkale@nvidia.com> | 2013-06-10 03:48:16 -0700 |
| commit | 7e8f0b08f06c242fae745677fce0f0b30746f5a1 (patch) | |
| tree | 1e73ca3c045f95437d7e33df22a1cfb61d6e4b6a | |
| parent | f1e67ff7a4394ec89b0fb1683b99be2161618944 (diff) | |
iommu/tegra: smmu: Add flush_ptc_and_tlb_range()
Add flush_ptc_and_tlb_range() to handle multiple entries at once.
bug 1286500
Change-Id: Ib1e9e2e7131345bb422787633eb8d1a4c549dda0
(cherry picked from commit b16d45873a8776d7ef7259a9b293336d9a2e1d28)
Signed-off-by: Hiroshi Doyu <hdoyu@nvidia.com>
Reviewed-on: http://git-master/r/234121
Reviewed-by: Automatic_Commit_Validation_User
Reviewed-by: Krishna Reddy <vdumpa@nvidia.com>
| -rw-r--r-- | drivers/iommu/tegra-smmu.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/drivers/iommu/tegra-smmu.c b/drivers/iommu/tegra-smmu.c index d48296636460..a719ef20b2c6 100644 --- a/drivers/iommu/tegra-smmu.c +++ b/drivers/iommu/tegra-smmu.c @@ -484,6 +484,19 @@ static void flush_ptc_and_tlb(struct smmu_device *smmu, smmu_flush_tlb(smmu, as, iova, is_pde); } +static void flush_ptc_and_tlb_range(struct smmu_device *smmu, + struct smmu_as *as, dma_addr_t iova, + unsigned long *pte, struct page *page, + size_t count) +{ + int i; + + for (i = 0; i < count; i++) { + smmu_flush_ptc(smmu, pte + i, page); + smmu_flush_tlb(smmu, as, iova + i * PAGE_SIZE, 0); + } +} + static inline void flush_ptc_and_tlb_all(struct smmu_device *smmu, struct smmu_as *as) { |