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| author | Alex Deucher <alexander.deucher@amd.com> | 2017-07-24 23:18:44 -0400 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2017-07-25 16:37:25 -0400 |
| commit | edca2d052997fcbd62a9d255fb6c7c25a0fc9f0f (patch) | |
| tree | 4944aabad074247eb254bcf87138c029391a77ed /drivers | |
| parent | 2e2bfd90fa2b1be480a655337b2d25410323f43e (diff) | |
| download | lwn-edca2d052997fcbd62a9d255fb6c7c25a0fc9f0f.tar.gz lwn-edca2d052997fcbd62a9d255fb6c7c25a0fc9f0f.zip | |
drm/amdgpu/gmc9: disable legacy vga features in gmc init
Needs to be done when the MC is set up.
Acked-by: Christian König <christian.koenig@amd.com>
Acked-by: Harry Wentland <harry.wentland@amd.com>
Reviewed-by: Junwei Zhang <Jerry.Zhang@amd.com>
Reviewed-by: Michel Dänzer <michel.daenzer@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c b/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c index 677181fdfa00..c22899a08106 100644 --- a/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c +++ b/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c @@ -29,6 +29,8 @@ #include "vega10/HDP/hdp_4_0_offset.h" #include "vega10/HDP/hdp_4_0_sh_mask.h" #include "vega10/GC/gc_9_0_sh_mask.h" +#include "vega10/DC/dce_12_0_offset.h" +#include "vega10/DC/dce_12_0_sh_mask.h" #include "vega10/vega10_enum.h" #include "soc15_common.h" @@ -750,6 +752,20 @@ static int gmc_v9_0_hw_init(void *handle) /* The sequence of these two function calls matters.*/ gmc_v9_0_init_golden_registers(adev); + if (adev->mode_info.num_crtc) { + u32 tmp; + + /* Lockout access through VGA aperture*/ + tmp = RREG32_SOC15(DCE, 0, mmVGA_HDP_CONTROL); + tmp = REG_SET_FIELD(tmp, VGA_HDP_CONTROL, VGA_MEMORY_DISABLE, 1); + WREG32_SOC15(DCE, 0, mmVGA_HDP_CONTROL, tmp); + + /* disable VGA render */ + tmp = RREG32_SOC15(DCE, 0, mmVGA_RENDER_CONTROL); + tmp = REG_SET_FIELD(tmp, VGA_RENDER_CONTROL, VGA_VSTATUS_CNTL, 0); + WREG32_SOC15(DCE, 0, mmVGA_RENDER_CONTROL, tmp); + } + r = gmc_v9_0_gart_enable(adev); return r; |