From: Likun Gao <likun....@amd.com>
Support to get clockgating state for gfx v12.
Signed-off-by: Likun Gao <likun....@amd.com>
Reviewed-by: Hawking Zhang <hawking.zh...@amd.com>
Signed-off-by: Alex Deucher <alexander.deuc...@amd.com>
---
drivers/gpu/drm/amd/amdgpu/gfx_v12_0.c | 38 +++++++++++++++++++++++++-
1 file changed, 37 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v12_0.c
b/drivers/gpu/drm/amd/amdgpu/gfx_v12_0.c
index 8d4b234bd287e..08f866c5ff432 100644
--- a/drivers/gpu/drm/amd/amdgpu/gfx_v12_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gfx_v12_0.c
@@ -3863,7 +3863,43 @@ static int gfx_v12_0_set_clockgating_state(void *handle,
static void gfx_v12_0_get_clockgating_state(void *handle, u64 *flags)
{
- /* TODO */
+ struct amdgpu_device *adev = (struct amdgpu_device *)handle;
+ int data;
+
+ /* AMD_CG_SUPPORT_GFX_MGCG */
+ data = RREG32_SOC15(GC, 0, regRLC_CGTT_MGCG_OVERRIDE);
+ if (!(data & RLC_CGTT_MGCG_OVERRIDE__GFXIP_MGCG_OVERRIDE_MASK))
+ *flags |= AMD_CG_SUPPORT_GFX_MGCG;
+
+ /* AMD_CG_SUPPORT_REPEATER_FGCG */
+ if (!(data & RLC_CGTT_MGCG_OVERRIDE__GFXIP_REPEATER_FGCG_OVERRIDE_MASK))
+ *flags |= AMD_CG_SUPPORT_REPEATER_FGCG;
+
+ /* AMD_CG_SUPPORT_GFX_FGCG */
+ if (!(data & RLC_CGTT_MGCG_OVERRIDE__GFXIP_FGCG_OVERRIDE_MASK))
+ *flags |= AMD_CG_SUPPORT_GFX_FGCG;
+
+ /* AMD_CG_SUPPORT_GFX_PERF_CLK */
+ if (!(data & RLC_CGTT_MGCG_OVERRIDE__PERFMON_CLOCK_STATE_MASK))
+ *flags |= AMD_CG_SUPPORT_GFX_PERF_CLK;
+
+ /* AMD_CG_SUPPORT_GFX_CGCG */
+ data = RREG32_SOC15(GC, 0, regRLC_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_3D_CGCG */
+ data = RREG32_SOC15(GC, 0, regRLC_CGCG_CGLS_CTRL_3D);
+ if (data & RLC_CGCG_CGLS_CTRL_3D__CGCG_EN_MASK)
+ *flags |= AMD_CG_SUPPORT_GFX_3D_CGCG;
+
+ /* AMD_CG_SUPPORT_GFX_3D_CGLS */
+ if (data & RLC_CGCG_CGLS_CTRL_3D__CGLS_EN_MASK)
+ *flags |= AMD_CG_SUPPORT_GFX_3D_CGLS;
}
static u64 gfx_v12_0_ring_get_rptr_gfx(struct amdgpu_ring *ring)
--
2.44.0
