diff options
| author | Huang Rui | 2017-01-05 11:48:44 +0100 |
|---|---|---|
| committer | Alex Deucher | 2017-01-27 17:13:07 +0100 |
| commit | ebd843d6ee915394094777c72f01fe55356c8eae (patch) | |
| tree | 3a0e85d0f2d9fc86eb17a594fd257373cfde49e1 /drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c | |
| parent | drm/amdgpu: add parse clock gating state (diff) | |
| download | kernel-qcow2-linux-ebd843d6ee915394094777c72f01fe55356c8eae.tar.gz kernel-qcow2-linux-ebd843d6ee915394094777c72f01fe55356c8eae.tar.xz kernel-qcow2-linux-ebd843d6ee915394094777c72f01fe55356c8eae.zip | |
drm/amdgpu: add get clockgating_state method for gfx v8
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/gfx_v8_0.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c b/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c index d604ba37541f..0907173d9681 100644 --- a/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c +++ b/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c @@ -5872,6 +5872,45 @@ static int gfx_v8_0_set_powergating_state(void *handle, return 0; } +static void gfx_v8_0_get_clockgating_state(void *handle, u32 *flags) +{ + struct amdgpu_device *adev = (struct amdgpu_device *)handle; + int data; + + /* AMD_CG_SUPPORT_GFX_MGCG */ + data = RREG32(mmRLC_CGTT_MGCG_OVERRIDE); + if (!(data & RLC_CGTT_MGCG_OVERRIDE__CPF_MASK)) + *flags |= AMD_CG_SUPPORT_GFX_MGCG; + + /* AMD_CG_SUPPORT_GFX_CGLG */ + data = RREG32(mmRLC_CGCG_CGLS_CTRL); + if (data & RLC_CGCG_CGLS_CTRL__CGCG_EN_MASK) + *flags |= AMD_CG_SUPPORT_GFX_CGCG; + + /* AMD_CG_SUPPORT_GFX_CGLS */ + if (data & RLC_CGCG_CGLS_CTRL__CGLS_EN_MASK) + *flags |= AMD_CG_SUPPORT_GFX_CGLS; + + /* AMD_CG_SUPPORT_GFX_CGTS */ + data = RREG32(mmCGTS_SM_CTRL_REG); + if (!(data & CGTS_SM_CTRL_REG__OVERRIDE_MASK)) + *flags |= AMD_CG_SUPPORT_GFX_CGTS; + + /* AMD_CG_SUPPORT_GFX_CGTS_LS */ + if (!(data & CGTS_SM_CTRL_REG__LS_OVERRIDE_MASK)) + *flags |= AMD_CG_SUPPORT_GFX_CGTS_LS; + + /* AMD_CG_SUPPORT_GFX_RLC_LS */ + data = RREG32(mmRLC_MEM_SLP_CNTL); + if (data & RLC_MEM_SLP_CNTL__RLC_MEM_LS_EN_MASK) + *flags |= AMD_CG_SUPPORT_GFX_RLC_LS | AMD_CG_SUPPORT_GFX_MGLS; + + /* AMD_CG_SUPPORT_GFX_CP_LS */ + data = RREG32(mmCP_MEM_SLP_CNTL); + if (data & CP_MEM_SLP_CNTL__CP_MEM_LS_EN_MASK) + *flags |= AMD_CG_SUPPORT_GFX_CP_LS | AMD_CG_SUPPORT_GFX_MGLS; +} + static void gfx_v8_0_send_serdes_cmd(struct amdgpu_device *adev, uint32_t reg_addr, uint32_t cmd) { @@ -6910,6 +6949,7 @@ static const struct amd_ip_funcs gfx_v8_0_ip_funcs = { .post_soft_reset = gfx_v8_0_post_soft_reset, .set_clockgating_state = gfx_v8_0_set_clockgating_state, .set_powergating_state = gfx_v8_0_set_powergating_state, + .get_clockgating_state = gfx_v8_0_get_clockgating_state, }; static const struct amdgpu_ring_funcs gfx_v8_0_ring_funcs_gfx = { |