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| author |   Peter Xu <peterx@redhat.com> | 2019-01-30 13:57:58 +0800 |
|---|---|---|
| committer |   Joerg Roedel <jroedel@suse.de> | 2019-01-30 17:30:46 +0100 |
| commit | 5a63f0adebe7d941de29304c526bfe184c43bdec (patch) | |
| tree | 35369fcc43709d4a07c9ab20ba690e93820d5a34 | |
| parent | iommu/amd: Print reason for iommu_map_page failure in map_sg (diff) | |
| download | linux-dev-5a63f0adebe7d941de29304c526bfe184c43bdec.tar.xz linux-dev-5a63f0adebe7d941de29304c526bfe184c43bdec.zip | |
iommu/amd: Remove clear_flush_young notifier
AMD IOMMU driver is using the clear_flush_young() to do cache flushing
but that's actually already covered by invalidate_range(). Remove the
extra notifier and the chunks.
Signed-off-by: Peter Xu <peterx@redhat.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
| -rw-r--r-- | drivers/iommu/amd_iommu_v2.c | 24 |
1 files changed, 0 insertions, 24 deletions
diff --git a/drivers/iommu/amd_iommu_v2.c b/drivers/iommu/amd_iommu_v2.c index 23dae9348ace..5d7ef750e4a0 100644 --- a/drivers/iommu/amd_iommu_v2.c +++ b/drivers/iommu/amd_iommu_v2.c @@ -370,29 +370,6 @@ static struct pasid_state *mn_to_state(struct mmu_notifier *mn) return container_of(mn, struct pasid_state, mn); } -static void __mn_flush_page(struct mmu_notifier *mn, - unsigned long address) -{ - struct pasid_state *pasid_state; - struct device_state *dev_state; - - pasid_state = mn_to_state(mn); - dev_state = pasid_state->device_state; - - amd_iommu_flush_page(dev_state->domain, pasid_state->pasid, address); -} - -static int mn_clear_flush_young(struct mmu_notifier *mn, - struct mm_struct *mm, - unsigned long start, - unsigned long end) -{ - for (; start < end; start += PAGE_SIZE) - __mn_flush_page(mn, start); - - return 0; -} - static void mn_invalidate_range(struct mmu_notifier *mn, struct mm_struct *mm, unsigned long start, unsigned long end) @@ -430,7 +407,6 @@ static void mn_release(struct mmu_notifier *mn, struct mm_struct *mm) static const struct mmu_notifier_ops iommu_mn = { .release = mn_release, - .clear_flush_young = mn_clear_flush_young, .invalidate_range = mn_invalidate_range, }; |