Skip to content


Browse files Browse the repository at this point in the history
mmu: flush tlbs before deleting page tables
Even though we've zeroed the PDE, the GPU may have cached the page table,
so we need to flush when deleting them.

Noticed while working on replacement MMU code, but a backport might be a
good idea, so let's fix it in the current code too.

Signed-off-by: Ben Skeggs <>
  • Loading branch information
skeggsb committed Sep 25, 2017
1 parent c93c411 commit 87e6aba
Showing 1 changed file with 2 additions and 0 deletions.
2 changes: 2 additions & 0 deletions drm/nouveau/nvkm/subdev/mmu/base.c
Expand Up @@ -241,6 +241,8 @@ nvkm_vm_unmap_pgt(struct nvkm_vm *vm, int big, u32 fpde, u32 lpde)
mmu->func->map_pgt(vpgd->obj, pde, vpgt->mem);


Expand Down

0 comments on commit 87e6aba

Please sign in to comment.