drm/radeon: raise UVD clocks on init v3

v2: not only raise the clocks on VCPU boot, but also on IB test.
v3: agd5f: fix r600_uvd_init return value.

fixes:
https://bugs.freedesktop.org/show_bug.cgi?id=63730

Signed-off-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

diff --git a/drivers/gpu/drm/radeon/r600.c b/drivers/gpu/drm/radeon/r600.c
index 5fe9e74..709f3e4 100644 (file)
--- a/drivers/gpu/drm/radeon/r600.c
+++ b/drivers/gpu/drm/radeon/r600.c
@@ -2645,6 +2645,9 @@ int r600_uvd_init(struct radeon_device *rdev)
 {
        int i, j, r;
 
+       /* raise clocks while booting up the VCPU */
+       radeon_set_uvd_clocks(rdev, 53300, 40000);
+
        /* disable clock gating */
        WREG32(UVD_CGC_GATE, 0);
 
@@ -2715,19 +2718,24 @@ int r600_uvd_init(struct radeon_device *rdev)
                mdelay(10);
                r = -1;
        }
+
        if (r) {
                DRM_ERROR("UVD not responding, giving up!!!\n");
+               radeon_set_uvd_clocks(rdev, 0, 0);
                return r;
        }
+
        /* enable interupt */
        WREG32_P(UVD_MASTINT_EN, 3<<1, ~(3 << 1));
 
        r = r600_uvd_rbc_start(rdev);
-       if (r)
-               return r;
+       if (!r)
+               DRM_INFO("UVD initialized successfully.\n");
 
-       DRM_INFO("UVD initialized successfully.\n");
-       return 0;
+       /* lower clocks again */
+       radeon_set_uvd_clocks(rdev, 0, 0);
+
+       return r;
 }
 
 /*
@@ -3566,28 +3574,36 @@ int r600_dma_ib_test(struct radeon_device *rdev, struct radeon_ring *ring)
 
 int r600_uvd_ib_test(struct radeon_device *rdev, struct radeon_ring *ring)
 {
-       struct radeon_fence *fence;
+       struct radeon_fence *fence = NULL;
        int r;
 
+       r = radeon_set_uvd_clocks(rdev, 53300, 40000);
+       if (r) {
+               DRM_ERROR("radeon: failed to raise UVD clocks (%d).\n", r);
+               return r;
+       }
+
        r = radeon_uvd_get_create_msg(rdev, ring->idx, 1, NULL);
        if (r) {
                DRM_ERROR("radeon: failed to get create msg (%d).\n", r);
-               return r;
+               goto error;
        }
 
        r = radeon_uvd_get_destroy_msg(rdev, ring->idx, 1, &fence);
        if (r) {
                DRM_ERROR("radeon: failed to get destroy ib (%d).\n", r);
-               return r;
+               goto error;
        }
 
        r = radeon_fence_wait(fence, false);
        if (r) {
                DRM_ERROR("radeon: fence wait failed (%d).\n", r);
-               return r;
+               goto error;
        }
        DRM_INFO("ib test on ring %d succeeded\n",  ring->idx);
+error:
        radeon_fence_unref(&fence);
+       radeon_set_uvd_clocks(rdev, 0, 0);
        return r;
 }