diff options
| author | Alex Deucher <alexander.deucher@amd.com> | 2017-07-24 22:52:12 -0400 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2017-07-25 16:37:12 -0400 |
| commit | 03ba88cfdc671354c5c81ac717b51def6b46a1cc (patch) | |
| tree | 9eb01bcb35a0c5132c9233fc3c1f521dd6c09bf8 /drivers/gpu | |
| parent | 7b8bd6bb4298ac7c9aeb7ecab9e4864da3272b64 (diff) | |
drm/amdgpu/gmc6: disable legacy vga features in gmc init (v2)
Needs to be done when the MC is set up.
v2: make consistent with other asics
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/gpu')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/gmc_v6_0.c | 14 |
1 files changed, 13 insertions, 1 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/gmc_v6_0.c b/drivers/gpu/drm/amd/amdgpu/gmc_v6_0.c index 886df0902067..93c45f26b7c8 100644 --- a/drivers/gpu/drm/amd/amdgpu/gmc_v6_0.c +++ b/drivers/gpu/drm/amd/amdgpu/gmc_v6_0.c @@ -249,7 +249,19 @@ static void gmc_v6_0_mc_program(struct amdgpu_device *adev) dev_warn(adev->dev, "Wait for MC idle timedout !\n"); } - WREG32(mmVGA_HDP_CONTROL, VGA_HDP_CONTROL__VGA_MEMORY_DISABLE_MASK); + if (adev->mode_info.num_crtc) { + u32 tmp; + + /* Lockout access through VGA aperture*/ + tmp = RREG32(mmVGA_HDP_CONTROL); + tmp |= VGA_HDP_CONTROL__VGA_MEMORY_DISABLE_MASK; + WREG32(mmVGA_HDP_CONTROL, tmp); + + /* disable VGA render */ + tmp = RREG32(mmVGA_RENDER_CONTROL); + tmp &= ~VGA_VSTATUS_CNTL; + WREG32(mmVGA_RENDER_CONTROL, tmp); + } /* Update configuration */ WREG32(mmMC_VM_SYSTEM_APERTURE_LOW_ADDR, adev->mc.vram_start >> 12); |