diff options
| author | Huang Rui <ray.huang@amd.com> | 2017-01-05 20:03:27 +0800 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2017-01-27 11:13:08 -0500 |
| commit | 8bcab092f8635002fa8fca0e14deb9ff46bdeeb8 (patch) | |
| tree | 361cfc4d748041f21dfefce68c4dba5a6dbbb08b /drivers/gpu | |
| parent | ebd843d6ee915394094777c72f01fe55356c8eae (diff) | |
drm/amdgpu: add get clockgating_state method for gmc 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')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/gmc_v8_0.c | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/gmc_v8_0.c b/drivers/gpu/drm/amd/amdgpu/gmc_v8_0.c index 476bc9f1954b..684a5f34d60d 100644 --- a/drivers/gpu/drm/amd/amdgpu/gmc_v8_0.c +++ b/drivers/gpu/drm/amd/amdgpu/gmc_v8_0.c @@ -1439,6 +1439,21 @@ static int gmc_v8_0_set_powergating_state(void *handle, return 0; } +static void gmc_v8_0_get_clockgating_state(void *handle, u32 *flags) +{ + struct amdgpu_device *adev = (struct amdgpu_device *)handle; + int data; + + /* AMD_CG_SUPPORT_MC_MGCG */ + data = RREG32(mmMC_HUB_MISC_HUB_CG); + if (data & MC_HUB_MISC_HUB_CG__ENABLE_MASK) + *flags |= AMD_CG_SUPPORT_MC_MGCG; + + /* AMD_CG_SUPPORT_MC_LS */ + if (data & MC_HUB_MISC_HUB_CG__MEM_LS_ENABLE_MASK) + *flags |= AMD_CG_SUPPORT_MC_LS; +} + static const struct amd_ip_funcs gmc_v8_0_ip_funcs = { .name = "gmc_v8_0", .early_init = gmc_v8_0_early_init, @@ -1457,6 +1472,7 @@ static const struct amd_ip_funcs gmc_v8_0_ip_funcs = { .post_soft_reset = gmc_v8_0_post_soft_reset, .set_clockgating_state = gmc_v8_0_set_clockgating_state, .set_powergating_state = gmc_v8_0_set_powergating_state, + .get_clockgating_state = gmc_v8_0_get_clockgating_state, }; static const struct amdgpu_gart_funcs gmc_v8_0_gart_funcs = { |