diff options
| author | Rex Zhu <Rex.Zhu@amd.com> | 2016-07-19 00:19:08 +0800 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2016-07-29 14:37:00 -0400 |
| commit | ec38f1889a8bf949f53ef9eaf52842f087596edf (patch) | |
| tree | 54cfc50415f27ecf5426f48b9f932e74aeb54650 /drivers/gpu | |
| parent | a93d54d842ac5d1502fce65d8d937a41a45245af (diff) | |
| download | linux-ec38f1889a8bf949f53ef9eaf52842f087596edf.tar.bz2 | |
drm/amdgpu: add bypass mode for vce3.0
Signed-off-by: Rex Zhu <Rex.Zhu@amd.com>
Reviewed-by: Eric Huang <JinhuiEric.Huang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/vce_v3_0.c | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/vce_v3_0.c b/drivers/gpu/drm/amd/amdgpu/vce_v3_0.c index 559209bb0083..800c10bcb6cd 100644 --- a/drivers/gpu/drm/amd/amdgpu/vce_v3_0.c +++ b/drivers/gpu/drm/amd/amdgpu/vce_v3_0.c @@ -655,6 +655,18 @@ static int vce_v3_0_process_interrupt(struct amdgpu_device *adev, return 0; } +static void vce_v3_set_bypass_mode(struct amdgpu_device *adev, bool enable) +{ + u32 tmp = RREG32_SMC(ixGCK_DFS_BYPASS_CNTL); + + if (enable) + tmp |= GCK_DFS_BYPASS_CNTL__BYPASSECLK_MASK; + else + tmp &= ~GCK_DFS_BYPASS_CNTL__BYPASSECLK_MASK; + + WREG32_SMC(ixGCK_DFS_BYPASS_CNTL, tmp); +} + static int vce_v3_0_set_clockgating_state(void *handle, enum amd_clockgating_state state) { @@ -662,6 +674,9 @@ static int vce_v3_0_set_clockgating_state(void *handle, bool enable = (state == AMD_CG_STATE_GATE) ? true : false; int i; + if (adev->asic_type == CHIP_POLARIS10) + vce_v3_set_bypass_mode(adev, enable); + if (!(adev->cg_flags & AMD_CG_SUPPORT_VCE_MGCG)) return 0; |