diff options
author | Will Deacon <will@kernel.org> | 2019-07-02 16:44:25 +0100 |
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committer | Will Deacon <will@kernel.org> | 2019-07-29 17:22:56 +0100 |
commit | 05aed9412b0bd0d9a985d94010c42ff0a5c6cc29 (patch) | |
tree | 1c4b9df8569d4c334c57518f49ecc7636489c299 /drivers/gpu/drm/panfrost | |
parent | 3445545b2248300319b6965208e77140c960c3fd (diff) |
iommu/io-pgtable: Hook up ->tlb_flush_walk() and ->tlb_flush_leaf() in drivers
Hook up ->tlb_flush_walk() and ->tlb_flush_leaf() in drivers using the
io-pgtable API so that we can start making use of them in the page-table
code. For now, they can just wrap the implementations of ->tlb_add_flush
and ->tlb_sync pending future optimisation in each driver.
Signed-off-by: Will Deacon <will@kernel.org>
Diffstat (limited to 'drivers/gpu/drm/panfrost')
-rw-r--r-- | drivers/gpu/drm/panfrost/panfrost_mmu.c | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/drivers/gpu/drm/panfrost/panfrost_mmu.c b/drivers/gpu/drm/panfrost/panfrost_mmu.c index 17bceb11e708..651858147bd6 100644 --- a/drivers/gpu/drm/panfrost/panfrost_mmu.c +++ b/drivers/gpu/drm/panfrost/panfrost_mmu.c @@ -257,8 +257,22 @@ static void mmu_tlb_sync_context(void *cookie) // TODO: Wait 1000 GPU cycles for HW_ISSUE_6367/T60X } +static void mmu_tlb_flush_walk(unsigned long iova, size_t size, size_t granule, + void *cookie) +{ + mmu_tlb_sync_context(cookie); +} + +static void mmu_tlb_flush_leaf(unsigned long iova, size_t size, size_t granule, + void *cookie) +{ + mmu_tlb_sync_context(cookie); +} + static const struct iommu_flush_ops mmu_tlb_ops = { .tlb_flush_all = mmu_tlb_inv_context_s1, + .tlb_flush_walk = mmu_tlb_flush_walk, + .tlb_flush_leaf = mmu_tlb_flush_leaf, .tlb_add_flush = mmu_tlb_inv_range_nosync, .tlb_sync = mmu_tlb_sync_context, }; |