diff options
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/uvd_v5_0.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/uvd_v5_0.c | 38 |
1 files changed, 31 insertions, 7 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/uvd_v5_0.c b/drivers/gpu/drm/amd/amdgpu/uvd_v5_0.c index a79e283590fb..9b49824233ae 100644 --- a/drivers/gpu/drm/amd/amdgpu/uvd_v5_0.c +++ b/drivers/gpu/drm/amd/amdgpu/uvd_v5_0.c @@ -791,15 +791,10 @@ static int uvd_v5_0_set_clockgating_state(void *handle, { struct amdgpu_device *adev = (struct amdgpu_device *)handle; bool enable = (state == AMD_CG_STATE_GATE) ? true : false; - static int curstate = -1; if (!(adev->cg_flags & AMD_CG_SUPPORT_UVD_MGCG)) return 0; - if (curstate == state) - return 0; - - curstate = state; if (enable) { /* wait for STATUS to clear */ if (uvd_v5_0_wait_for_idle(handle)) @@ -827,16 +822,44 @@ static int uvd_v5_0_set_powergating_state(void *handle, * the smc and the hw blocks */ struct amdgpu_device *adev = (struct amdgpu_device *)handle; + int ret = 0; if (!(adev->pg_flags & AMD_PG_SUPPORT_UVD)) return 0; if (state == AMD_PG_STATE_GATE) { uvd_v5_0_stop(adev); - return 0; + adev->uvd.is_powergated = true; } else { - return uvd_v5_0_start(adev); + ret = uvd_v5_0_start(adev); + if (ret) + goto out; + adev->uvd.is_powergated = false; + } + +out: + return ret; +} + +static void uvd_v5_0_get_clockgating_state(void *handle, u32 *flags) +{ + struct amdgpu_device *adev = (struct amdgpu_device *)handle; + int data; + + mutex_lock(&adev->pm.mutex); + + if (adev->uvd.is_powergated) { + DRM_INFO("Cannot get clockgating state when UVD is powergated.\n"); + goto out; } + + /* AMD_CG_SUPPORT_UVD_MGCG */ + data = RREG32(mmUVD_CGC_CTRL); + if (data & UVD_CGC_CTRL__DYN_CLOCK_MODE_MASK) + *flags |= AMD_CG_SUPPORT_UVD_MGCG; + +out: + mutex_unlock(&adev->pm.mutex); } static const struct amd_ip_funcs uvd_v5_0_ip_funcs = { @@ -854,6 +877,7 @@ static const struct amd_ip_funcs uvd_v5_0_ip_funcs = { .soft_reset = uvd_v5_0_soft_reset, .set_clockgating_state = uvd_v5_0_set_clockgating_state, .set_powergating_state = uvd_v5_0_set_powergating_state, + .get_clockgating_state = uvd_v5_0_get_clockgating_state, }; static const struct amdgpu_ring_funcs uvd_v5_0_ring_funcs = { |