Signed-off-by: Huang Rui <ray.huang at amd.com>
---
drivers/gpu/drm/amd/amdgpu/sdma_v3_0.c | 17 +++++++++++++++++
1 file changed, 17 insertions(+)
diff --git a/drivers/gpu/drm/amd/amdgpu/sdma_v3_0.c b/drivers/gpu/drm/amd/amdgpu/sdma_v3_0.c
index 4ca38a1..581f4a3 100644
--- a/drivers/gpu/drm/amd/amdgpu/sdma_v3_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/sdma_v3_0.c
@@ -1571,6 +1571,22 @@ static int sdma_v3_0_set_powergating_state(void *handle,
return 0;
}
+static void sdma_v3_0_clockgating_state(void *handle, u32 *flags)
+{
+ struct amdgpu_device *adev = (struct amdgpu_device *)handle;
+ int data;
+
+ /* AMD_CG_SUPPORT_SDMA_MGCG */
+ data = RREG32(mmSDMA0_CLK_CTRL + sdma_offsets[0]);
+ if (!(data & SDMA0_CLK_CTRL__SOFT_OVERRIDE0_MASK))
+ *flags |= AMD_CG_SUPPORT_SDMA_MGCG;
+
+ /* AMD_CG_SUPPORT_SDMA_LS */
+ data = RREG32(mmSDMA0_POWER_CNTL + sdma_offsets[0]);
+ if (data & SDMA0_POWER_CNTL__MEM_POWER_OVERRIDE_MASK)
+ *flags |= AMD_CG_SUPPORT_SDMA_LS;
+}
+
static const struct amd_ip_funcs sdma_v3_0_ip_funcs = {
.name = "sdma_v3_0",
.early_init = sdma_v3_0_early_init,
@@ -1589,6 +1605,7 @@ static const struct amd_ip_funcs sdma_v3_0_ip_funcs = {
.soft_reset = sdma_v3_0_soft_reset,
.set_clockgating_state = sdma_v3_0_set_clockgating_state,
.set_powergating_state = sdma_v3_0_set_powergating_state,
+ .clockgating_state = sdma_v3_0_clockgating_state,
};
static const struct amdgpu_ring_funcs sdma_v3_0_ring_funcs = {
--
2.7.4
