diff options
| author | Liu ChengZhe <ChengZhe.Liu@amd.com> | 2020-08-06 14:54:08 +0800 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2020-08-10 17:26:52 -0400 |
| commit | 1d4473261966bef70ff65ebb303bae98949b8f8a (patch) | |
| tree | 4539da462486d85e53be6abc3da4f19a91bb5830 /drivers/gpu/drm/amd/amdgpu/gfxhub_v2_1.c | |
| parent | b60646a20c9f61e364c86cc88f50f547361cceb3 (diff) | |
drm/amdgpu: Skip some registers config for SRIOV
Some registers are not accessible to virtual function setup, so
skip their initialization when in VF-SRIOV mode.
v2: move SRIOV VF check into specify functions;
modify commit description and comment.
Signed-off-by: Liu ChengZhe <ChengZhe.Liu@amd.com>
Reviewed-by: Luben Tuikov <luben.tuikov@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/gfxhub_v2_1.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/gfxhub_v2_1.c | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/gfxhub_v2_1.c b/drivers/gpu/drm/amd/amdgpu/gfxhub_v2_1.c index 1f6112b7fa49..80c906a0383f 100644 --- a/drivers/gpu/drm/amd/amdgpu/gfxhub_v2_1.c +++ b/drivers/gpu/drm/amd/amdgpu/gfxhub_v2_1.c @@ -182,6 +182,12 @@ static void gfxhub_v2_1_init_cache_regs(struct amdgpu_device *adev) { uint32_t tmp; + /* These registers are not accessible to VF-SRIOV. + * The PF will program them instead. + */ + 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); @@ -237,6 +243,12 @@ static void gfxhub_v2_1_enable_system_domain(struct amdgpu_device *adev) static void gfxhub_v2_1_disable_identity_aperture(struct amdgpu_device *adev) { + /* These registers are not accessible to VF-SRIOV. + * The PF will program them instead. + */ + if (amdgpu_sriov_vf(adev)) + return; + WREG32_SOC15(GC, 0, mmGCVM_L2_CONTEXT1_IDENTITY_APERTURE_LOW_ADDR_LO32, 0xFFFFFFFF); WREG32_SOC15(GC, 0, mmGCVM_L2_CONTEXT1_IDENTITY_APERTURE_LOW_ADDR_HI32, @@ -373,6 +385,13 @@ void gfxhub_v2_1_set_fault_enable_default(struct amdgpu_device *adev, bool value) { u32 tmp; + + /* These registers are not accessible to VF-SRIOV. + * The PF will program them instead. + */ + if (amdgpu_sriov_vf(adev)) + return; + tmp = RREG32_SOC15(GC, 0, mmGCVM_L2_PROTECTION_FAULT_CNTL); tmp = REG_SET_FIELD(tmp, GCVM_L2_PROTECTION_FAULT_CNTL, RANGE_PROTECTION_FAULT_ENABLE_DEFAULT, value); |