[PATCH 3/3] drm/amdgpu: set gfx clock gating for tonga/polaris.

[Rex Zhu]

Change-Id: I65d9858b8ca0789c5d82db2f8893b7c10fc6f471
Signed-off-by: Rex Zhu <rex....@amd.com>
---
 drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c | 77 +++++++++++++++++++++++++++++++++++
 1 file changed, 77 insertions(+)

diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c 
b/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c
index 1902442..9970893 100644
--- a/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c
@@ -5818,6 +5818,76 @@ static int gfx_v8_0_update_gfx_clock_gating(struct 
amdgpu_device *adev,
        return 0;
 }
 
+static int gfx_v8_0_tonga_update_gfx_clock_gating(struct amdgpu_device *adev,
+                                         enum amd_clockgating_state state)
+{
+       uint32_t msg_id, pp_state;
+       void *pp_handle = adev->powerplay.pp_handle;
+
+       if (state == AMD_CG_STATE_UNGATE)
+               pp_state = 0;
+       else
+               pp_state = PP_STATE_CG | PP_STATE_LS;
+
+       msg_id = PP_CG_MSG_ID(PP_GROUP_GFX,
+                       PP_BLOCK_GFX_CG,
+                       PP_STATE_SUPPORT_CG | PP_STATE_SUPPORT_LS,
+                       pp_state);
+       amd_set_clockgating_by_smu(pp_handle, msg_id);
+
+       msg_id = PP_CG_MSG_ID(PP_GROUP_GFX,
+                       PP_BLOCK_GFX_MG,
+                       PP_STATE_SUPPORT_CG | PP_STATE_SUPPORT_LS,
+                       pp_state);
+       amd_set_clockgating_by_smu(pp_handle, msg_id);
+
+       return 0;
+}
+
+static int gfx_v8_0_polaris_update_gfx_clock_gating(struct amdgpu_device *adev,
+                                         enum amd_clockgating_state state)
+{
+       uint32_t msg_id, pp_state;
+       void *pp_handle = adev->powerplay.pp_handle;
+
+       if (state == AMD_CG_STATE_UNGATE)
+               pp_state = 0;
+       else
+               pp_state = PP_STATE_CG | PP_STATE_LS;
+
+       msg_id = PP_CG_MSG_ID(PP_GROUP_GFX,
+                       PP_BLOCK_GFX_CG,
+                       PP_STATE_SUPPORT_CG | PP_STATE_SUPPORT_LS,
+                       pp_state);
+       amd_set_clockgating_by_smu(pp_handle, msg_id);
+
+       msg_id = PP_CG_MSG_ID(PP_GROUP_GFX,
+                       PP_BLOCK_GFX_3D,
+                       PP_STATE_SUPPORT_CG | PP_STATE_SUPPORT_LS,
+                       pp_state);
+       amd_set_clockgating_by_smu(pp_handle, msg_id);
+
+       msg_id = PP_CG_MSG_ID(PP_GROUP_GFX,
+                       PP_BLOCK_GFX_MG,
+                       PP_STATE_SUPPORT_CG | PP_STATE_SUPPORT_LS,
+                       pp_state);
+       amd_set_clockgating_by_smu(pp_handle, msg_id);
+
+       msg_id = PP_CG_MSG_ID(PP_GROUP_GFX,
+                       PP_BLOCK_GFX_RLC,
+                       PP_STATE_SUPPORT_CG | PP_STATE_SUPPORT_LS,
+                       pp_state);
+       amd_set_clockgating_by_smu(pp_handle, msg_id);
+
+       msg_id = PP_CG_MSG_ID(PP_GROUP_GFX,
+                       PP_BLOCK_GFX_CP,
+                       PP_STATE_SUPPORT_CG | PP_STATE_SUPPORT_LS,
+                       pp_state);
+       amd_set_clockgating_by_smu(pp_handle, msg_id);
+
+       return 0;
+}
+
 static int gfx_v8_0_set_clockgating_state(void *handle,
                                          enum amd_clockgating_state state)
 {
@@ -5830,6 +5900,13 @@ static int gfx_v8_0_set_clockgating_state(void *handle,
                gfx_v8_0_update_gfx_clock_gating(adev,
                                                 state == AMD_CG_STATE_GATE ? 
true : false);
                break;
+       case CHIP_TONGA:
+               gfx_v8_0_tonga_update_gfx_clock_gating(adev, state);
+               break;
+       case CHIP_POLARIS10:
+       case CHIP_POLARIS11:
+               gfx_v8_0_polaris_update_gfx_clock_gating(adev, state);
+               break;
        default:
                break;
        }
-- 
1.9.1

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