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| author | Rohit Khaire <Rohit.Khaire@amd.com> | 2020-02-21 23:04:13 +0300 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2020-02-26 22:17:33 +0300 |
| commit | 75ddb640e193a1f1796679171d7bc81ec79ad9bb (patch) | |
| tree | 055a11f4344a2f4cc1309fc4a15f86adc80a764e /drivers/gpu/drm/amd/amdgpu/gfxhub_v2_0.c | |
| parent | b8076b5e5b857fd82b3439fd22934a8e638c6ad8 (diff) | |
| download | linux-75ddb640e193a1f1796679171d7bc81ec79ad9bb.tar.xz | |
drm/amdgpu: Don't write GCVM_L2_CNTL* regs on navi12 VF
This change disables programming of GCVM_L2_CNTL* regs on VF.
Signed-off-by: Rohit Khaire <Rohit.Khaire@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@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 | 12 |
1 files changed, 9 insertions, 3 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/gfxhub_v2_0.c b/drivers/gpu/drm/amd/amdgpu/gfxhub_v2_0.c index b70c7b483c24..e0654a216ab5 100644 --- a/drivers/gpu/drm/amd/amdgpu/gfxhub_v2_0.c +++ b/drivers/gpu/drm/amd/amdgpu/gfxhub_v2_0.c @@ -135,6 +135,10 @@ static void gfxhub_v2_0_init_cache_regs(struct amdgpu_device *adev) { uint32_t tmp; + /* These regs are not accessible for VF, PF will program these in SRIOV */ + if (amdgpu_sriov_vf(adev)) + return; + /* Setup L2 cache */ tmp = RREG32_SOC15(GC, 0, mmGCVM_L2_CNTL); tmp = REG_SET_FIELD(tmp, GCVM_L2_CNTL, ENABLE_L2_CACHE, 1); @@ -298,9 +302,11 @@ void gfxhub_v2_0_gart_disable(struct amdgpu_device *adev) ENABLE_ADVANCED_DRIVER_MODEL, 0); WREG32_SOC15(GC, 0, mmGCMC_VM_MX_L1_TLB_CNTL, tmp); - /* Setup L2 cache */ - WREG32_FIELD15(GC, 0, GCVM_L2_CNTL, ENABLE_L2_CACHE, 0); - WREG32_SOC15(GC, 0, mmGCVM_L2_CNTL3, 0); + if (!amdgpu_sriov_vf(adev)) { + /* Setup L2 cache */ + WREG32_FIELD15(GC, 0, GCVM_L2_CNTL, ENABLE_L2_CACHE, 0); + WREG32_SOC15(GC, 0, mmGCVM_L2_CNTL3, 0); + } } /** |