diff options
| author | Likun Gao <Likun.Gao@amd.com> | 2021-02-03 18:45:42 +0800 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2021-02-09 15:28:36 -0500 |
| commit | 1001f2a1f33dfe88bc7581d0177d01e9d299999c (patch) | |
| tree | e51c6586f5b5f6a9b9aa51a5f29db52d42497da2 /drivers/gpu/drm/amd/amdgpu | |
| parent | 0bf7f2dcb9a65dcc9efb47e3a393108499d6a110 (diff) | |
drm/amdgpu: support rom clockgating related function for NV family
Add functions to support enable/disable rom clock gating and get rom
clock gating status.
Signed-off-by: Likun Gao <Likun.Gao@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/nv.c | 4 | ||||
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/smuio_v11_0_6.c | 36 |
2 files changed, 40 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/nv.c b/drivers/gpu/drm/amd/amdgpu/nv.c index c39be4d93817..efacf5fd8191 100644 --- a/drivers/gpu/drm/amd/amdgpu/nv.c +++ b/drivers/gpu/drm/amd/amdgpu/nv.c @@ -1144,6 +1144,8 @@ static int nv_common_set_clockgating_state(void *handle, state == AMD_CG_STATE_GATE); adev->hdp.funcs->update_clock_gating(adev, state == AMD_CG_STATE_GATE); + adev->smuio.funcs->update_rom_clock_gating(adev, + state == AMD_CG_STATE_GATE); break; default: break; @@ -1169,6 +1171,8 @@ static void nv_common_get_clockgating_state(void *handle, u32 *flags) adev->hdp.funcs->get_clock_gating_state(adev, flags); + adev->smuio.funcs->get_clock_gating_state(adev, flags); + return; } diff --git a/drivers/gpu/drm/amd/amdgpu/smuio_v11_0_6.c b/drivers/gpu/drm/amd/amdgpu/smuio_v11_0_6.c index 16aef32a6004..3a18dbb55c32 100644 --- a/drivers/gpu/drm/amd/amdgpu/smuio_v11_0_6.c +++ b/drivers/gpu/drm/amd/amdgpu/smuio_v11_0_6.c @@ -35,7 +35,43 @@ static u32 smuio_v11_0_6_get_rom_data_offset(struct amdgpu_device *adev) return SOC15_REG_OFFSET(SMUIO, 0, mmROM_DATA); } +static void smuio_v11_0_6_update_rom_clock_gating(struct amdgpu_device *adev, bool enable) +{ + u32 def, data; + + /* enable/disable ROM CG is not supported on APU */ + if (adev->flags & AMD_IS_APU) + return; + + def = data = RREG32_SOC15(SMUIO, 0, mmCGTT_ROM_CLK_CTRL0); + + if (enable && (adev->cg_flags & AMD_CG_SUPPORT_ROM_MGCG)) + data &= ~(CGTT_ROM_CLK_CTRL0__SOFT_OVERRIDE0_MASK | + CGTT_ROM_CLK_CTRL0__SOFT_OVERRIDE1_MASK); + else + data |= CGTT_ROM_CLK_CTRL0__SOFT_OVERRIDE0_MASK | + CGTT_ROM_CLK_CTRL0__SOFT_OVERRIDE1_MASK; + + if (def != data) + WREG32_SOC15(SMUIO, 0, mmCGTT_ROM_CLK_CTRL0, data); +} + +static void smuio_v11_0_6_get_clock_gating_state(struct amdgpu_device *adev, u32 *flags) +{ + u32 data; + + /* CGTT_ROM_CLK_CTRL0 is not available for APU */ + if (adev->flags & AMD_IS_APU) + return; + + data = RREG32_SOC15(SMUIO, 0, mmCGTT_ROM_CLK_CTRL0); + if (!(data & CGTT_ROM_CLK_CTRL0__SOFT_OVERRIDE0_MASK)) + *flags |= AMD_CG_SUPPORT_ROM_MGCG; +} + const struct amdgpu_smuio_funcs smuio_v11_0_6_funcs = { .get_rom_index_offset = smuio_v11_0_6_get_rom_index_offset, .get_rom_data_offset = smuio_v11_0_6_get_rom_data_offset, + .update_rom_clock_gating = smuio_v11_0_6_update_rom_clock_gating, + .get_clock_gating_state = smuio_v11_0_6_get_clock_gating_state, }; |