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| author | Huang Rui <ray.huang@amd.com> | 2017-01-05 20:18:43 +0800 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2017-01-27 11:13:09 -0500 |
| commit | 41c360f6a6ccd477481a3309608e9b3388bdd83d (patch) | |
| tree | a7734bfb3fe2e8693bdb1e2b3e78647793249a23 /drivers/gpu/drm/amd/amdgpu/sdma_v3_0.c | |
| parent | 8bcab092f8635002fa8fca0e14deb9ff46bdeeb8 (diff) | |
| download | linux-41c360f6a6ccd477481a3309608e9b3388bdd83d.tar.bz2 | |
drm/amdgpu: add get clockgating_state method for sdma v3
Signed-off-by: Huang Rui <ray.huang@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/sdma_v3_0.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/sdma_v3_0.c | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/sdma_v3_0.c b/drivers/gpu/drm/amd/amdgpu/sdma_v3_0.c index 034ace79ed49..4bb8bec13c47 100644 --- a/drivers/gpu/drm/amd/amdgpu/sdma_v3_0.c +++ b/drivers/gpu/drm/amd/amdgpu/sdma_v3_0.c @@ -1533,6 +1533,22 @@ static int sdma_v3_0_set_powergating_state(void *handle, return 0; } +static void sdma_v3_0_get_clockgating_state(void *handle, u32 *flags) +{ + struct amdgpu_device *adev = (struct amdgpu_device *)handle; + int data; + + /* AMD_CG_SUPPORT_SDMA_MGCG */ + data = RREG32(mmSDMA0_CLK_CTRL + sdma_offsets[0]); + if (!(data & SDMA0_CLK_CTRL__SOFT_OVERRIDE0_MASK)) + *flags |= AMD_CG_SUPPORT_SDMA_MGCG; + + /* AMD_CG_SUPPORT_SDMA_LS */ + data = RREG32(mmSDMA0_POWER_CNTL + sdma_offsets[0]); + if (data & SDMA0_POWER_CNTL__MEM_POWER_OVERRIDE_MASK) + *flags |= AMD_CG_SUPPORT_SDMA_LS; +} + static const struct amd_ip_funcs sdma_v3_0_ip_funcs = { .name = "sdma_v3_0", .early_init = sdma_v3_0_early_init, @@ -1551,6 +1567,7 @@ static const struct amd_ip_funcs sdma_v3_0_ip_funcs = { .soft_reset = sdma_v3_0_soft_reset, .set_clockgating_state = sdma_v3_0_set_clockgating_state, .set_powergating_state = sdma_v3_0_set_powergating_state, + .get_clockgating_state = sdma_v3_0_get_clockgating_state, }; static const struct amdgpu_ring_funcs sdma_v3_0_ring_funcs = { |