Signed-off-by: Huang Rui <ray.huang at amd.com>
---
drivers/gpu/drm/amd/amdgpu/vce_v3_0.c | 18 ++++++++++++++++++
1 file changed, 18 insertions(+)
diff --git a/drivers/gpu/drm/amd/amdgpu/vce_v3_0.c b/drivers/gpu/drm/amd/amdgpu/vce_v3_0.c
index 35ff1c3..15742e0 100644
--- a/drivers/gpu/drm/amd/amdgpu/vce_v3_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/vce_v3_0.c
@@ -781,6 +781,23 @@ static int vce_v3_0_set_powergating_state(void *handle,
return vce_v3_0_start(adev);
}
+static void vce_v3_0_clockgating_state(void *handle, u32 *flags)
+{
+ struct amdgpu_device *adev = (struct amdgpu_device *)handle;
+ int data;
+
+ mutex_lock(&adev->grbm_idx_mutex);
+
+ WREG32_FIELD(GRBM_GFX_INDEX, VCE_INSTANCE, 0);
+
+ /* AMD_CG_SUPPORT_VCE_MGCG */
+ data = RREG32(mmVCE_CLOCK_GATING_A);
+ if (data & (0x04 << 4))
+ *flags |= AMD_CG_SUPPORT_VCE_MGCG;
+
+ mutex_unlock(&adev->grbm_idx_mutex);
+}
+
static void vce_v3_0_ring_emit_ib(struct amdgpu_ring *ring,
struct amdgpu_ib *ib, unsigned int vm_id, bool ctx_switch)
{
@@ -832,6 +849,7 @@ static const struct amd_ip_funcs vce_v3_0_ip_funcs = {
.post_soft_reset = vce_v3_0_post_soft_reset,
.set_clockgating_state = vce_v3_0_set_clockgating_state,
.set_powergating_state = vce_v3_0_set_powergating_state,
+ .clockgating_state = vce_v3_0_clockgating_state,
};
static const struct amdgpu_ring_funcs vce_v3_0_ring_phys_funcs = {
--
2.7.4
