drm/amdkfd: Make TLB flush conditional on mapping
authorEric Huang <jinhuieric.huang@amd.com>
Tue, 1 Jun 2021 22:54:32 +0000 (18:54 -0400)
committerAlex Deucher <alexander.deucher@amd.com>
Fri, 4 Jun 2021 16:40:01 +0000 (12:40 -0400)
commit31f33243788dcbae8bd2819ed83923a73f7dfd30
tree07f44ea83102c0ccb01942bbada05898a2a8c04b
parent075e8080c1a7571563171a07fa9ce47c4bc80044
drm/amdkfd: Make TLB flush conditional on mapping

It is to optimize memory mapping latency, and also aviod
a page fault in a corner case of changing valid PDE into
PTE.

Signed-off-by: Eric Huang <jinhuieric.huang@amd.com>
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.h
drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c
drivers/gpu/drm/amd/amdkfd/kfd_chardev.c
drivers/gpu/drm/amd/amdkfd/kfd_process.c