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| author | Huang Rui <ray.huang@amd.com> | 2017-01-05 16:07:02 +0300 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2017-01-27 19:13:10 +0300 |
| commit | c8781f56c85997a42e8ab3254f37c0c301f6b490 (patch) | |
| tree | 4d40ca1dbf030f9a55abe3484cbddde839ff5c3c /drivers/gpu/drm/amd/amdgpu/uvd_v5_0.c | |
| parent | abd2c2fe1212698ed326d5746e487abecb2ed325 (diff) | |
| download | linux-c8781f56c85997a42e8ab3254f37c0c301f6b490.tar.xz | |
drm/amdgpu: add get clockgating_state method for uvd v5&v6
Signed-off-by: Huang Rui <ray.huang@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/uvd_v5_0.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/uvd_v5_0.c | 33 |
1 files changed, 31 insertions, 2 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/uvd_v5_0.c b/drivers/gpu/drm/amd/amdgpu/uvd_v5_0.c index 6de6becce745..9b49824233ae 100644 --- a/drivers/gpu/drm/amd/amdgpu/uvd_v5_0.c +++ b/drivers/gpu/drm/amd/amdgpu/uvd_v5_0.c @@ -822,16 +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 = { @@ -849,6 +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 = { |