[PART1 PATCH 7/8] drm/amdgpu: add clockgating_state method for uvd v5&v6

[Huang Rui <ray.huang-5C7GfCeVMHo@public.gmane.org>]

Signed-off-by: Huang Rui <ray.huang@amd.com>
---
 drivers/gpu/drm/amd/amdgpu/uvd_v5_0.c | 12 ++++++++++++
 drivers/gpu/drm/amd/amdgpu/uvd_v6_0.c | 12 ++++++++++++
 2 files changed, 24 insertions(+)

diff --git a/drivers/gpu/drm/amd/amdgpu/uvd_v5_0.c b/drivers/gpu/drm/amd/amdgpu/uvd_v5_0.c
index 03a35d9..9f1d8f6 100644
--- a/drivers/gpu/drm/amd/amdgpu/uvd_v5_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/uvd_v5_0.c
@@ -793,6 +793,17 @@ static int uvd_v5_0_set_powergating_state(void *handle,
 	}
 }
 
+static void uvd_v5_0_clockgating_state(void *handle, u32 *flags)
+{
+	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
+	int data;
+
+	/* AMD_CG_SUPPORT_UVD_MGCG */
+	data = RREG32(mmUVD_CGC_CTRL);
+	if (data & UVD_CGC_CTRL__DYN_CLOCK_MODE_MASK)
+		*flags |= AMD_CG_SUPPORT_UVD_MGCG;
+}
+
 static const struct amd_ip_funcs uvd_v5_0_ip_funcs = {
 	.name = "uvd_v5_0",
 	.early_init = uvd_v5_0_early_init,
@@ -808,6 +819,7 @@ static const struct amd_ip_funcs uvd_v5_0_ip_funcs = {
 	.soft_reset = uvd_v5_0_soft_reset,
 	.set_clockgating_state = uvd_v5_0_set_clockgating_state,
 	.set_powergating_state = uvd_v5_0_set_powergating_state,
+	.clockgating_state = uvd_v5_0_clockgating_state,
 };
 
 static const struct amdgpu_ring_funcs uvd_v5_0_ring_funcs = {
diff --git a/drivers/gpu/drm/amd/amdgpu/uvd_v6_0.c b/drivers/gpu/drm/amd/amdgpu/uvd_v6_0.c
index 8779d4b..bccf2b9 100644
--- a/drivers/gpu/drm/amd/amdgpu/uvd_v6_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/uvd_v6_0.c
@@ -1001,6 +1001,17 @@ static int uvd_v6_0_set_powergating_state(void *handle,
 	}
 }
 
+static void uvd_v6_0_clockgating_state(void *handle, u32 *flags)
+{
+	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
+	int data;
+
+	/* AMD_CG_SUPPORT_UVD_MGCG */
+	data = RREG32(mmUVD_CGC_CTRL);
+	if (data & UVD_CGC_CTRL__DYN_CLOCK_MODE_MASK)
+		*flags |= AMD_CG_SUPPORT_UVD_MGCG;
+}
+
 static const struct amd_ip_funcs uvd_v6_0_ip_funcs = {
 	.name = "uvd_v6_0",
 	.early_init = uvd_v6_0_early_init,
@@ -1019,6 +1030,7 @@ static const struct amd_ip_funcs uvd_v6_0_ip_funcs = {
 	.post_soft_reset = uvd_v6_0_post_soft_reset,
 	.set_clockgating_state = uvd_v6_0_set_clockgating_state,
 	.set_powergating_state = uvd_v6_0_set_powergating_state,
+	.clockgating_state = uvd_v6_0_clockgating_state,
 };
 
 static const struct amdgpu_ring_funcs uvd_v6_0_ring_phys_funcs = {
-- 
2.7.4

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