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| author | Jack Xiao <Jack.Xiao@amd.com> | 2019-05-20 12:16:19 +0800 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2019-06-21 18:59:32 -0500 |
| commit | 3ebab625e6626a0794808a25ea2de5de1ea65646 (patch) | |
| tree | b6766445d6f78a3031988f248d997fb19185e27a /drivers/gpu/drm/amd/amdgpu/gfxhub_v2_0.c | |
| parent | b1fa87a48e53e05a712386baea39370331d95d72 (diff) | |
| download | linux-3ebab625e6626a0794808a25ea2de5de1ea65646.tar.bz2 | |
drm/amd: the data retured from PRT is expected to be 0
The dummy page for returning from PRT resides inside system memory,
need set system flag bit in VM_L2_CNTL.
Signed-off-by: Jack Xiao <Jack.Xiao@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/gfxhub_v2_0.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/gfxhub_v2_0.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/gfxhub_v2_0.c b/drivers/gpu/drm/amd/amdgpu/gfxhub_v2_0.c index 231c77aed01b..b7de60a15623 100644 --- a/drivers/gpu/drm/amd/amdgpu/gfxhub_v2_0.c +++ b/drivers/gpu/drm/amd/amdgpu/gfxhub_v2_0.c @@ -135,7 +135,8 @@ static void gfxhub_v2_0_init_cache_regs(struct amdgpu_device *adev) tmp = RREG32_SOC15(GC, 0, mmGCVM_L2_CNTL); tmp = REG_SET_FIELD(tmp, GCVM_L2_CNTL, ENABLE_L2_CACHE, 1); tmp = REG_SET_FIELD(tmp, GCVM_L2_CNTL, ENABLE_L2_FRAGMENT_PROCESSING, 0); - + tmp = REG_SET_FIELD(tmp, GCVM_L2_CNTL, + ENABLE_DEFAULT_PAGE_OUT_TO_SYSTEM_MEMORY, 1); /* XXX for emulation, Refer to closed source code.*/ tmp = REG_SET_FIELD(tmp, GCVM_L2_CNTL, L2_PDE0_CACHE_TAG_GENERATION_MODE, 0); |