NO_OP register should be writen to 0
Signed-off-by: Leo Liu <leo.liu at amd.com>
---
drivers/gpu/drm/amd/amdgpu/uvd_v4_2.c | 15 +++++++++++++--
1 file changed, 13 insertions(+), 2 deletions(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/uvd_v4_2.c b/drivers/gpu/drm/amd/amdgpu/uvd_v4_2.c
index 5f22135d..6fed3d7 100644
--- a/drivers/gpu/drm/amd/amdgpu/uvd_v4_2.c
+++ b/drivers/gpu/drm/amd/amdgpu/uvd_v4_2.c
@@ -524,6 +524,18 @@ static void uvd_v4_2_ring_emit_ib(struct amdgpu_ring *ring,
amdgpu_ring_write(ring, ib->length_dw);
}
+static void uvd_v4_2_ring_insert_nop(struct amdgpu_ring *ring, uint32_t count)
+{
+ int i;
+
+ WARN_ON(ring->wptr % 2 || count % 2);
+
+ for (i = 0; i < count / 2; i++) {
+ amdgpu_ring_write(ring, PACKET0(mmUVD_NO_OP, 0));
+ amdgpu_ring_write(ring, 0);
+ }
+}
+
/**
* uvd_v4_2_mc_resume - memory controller programming
*
@@ -733,7 +745,6 @@ static const struct amd_ip_funcs uvd_v4_2_ip_funcs = {
static const struct amdgpu_ring_funcs uvd_v4_2_ring_funcs = {
.type = AMDGPU_RING_TYPE_UVD,
.align_mask = 0xf,
- .nop = PACKET0(mmUVD_NO_OP, 0),
.support_64bit_ptrs = false,
.get_rptr = uvd_v4_2_ring_get_rptr,
.get_wptr = uvd_v4_2_ring_get_wptr,
@@ -746,7 +757,7 @@ static const struct amdgpu_ring_funcs uvd_v4_2_ring_funcs = {
.emit_fence = uvd_v4_2_ring_emit_fence,
.test_ring = uvd_v4_2_ring_test_ring,
.test_ib = amdgpu_uvd_ring_test_ib,
- .insert_nop = amdgpu_ring_insert_nop,
+ .insert_nop = uvd_v4_2_ring_insert_nop,
.pad_ib = amdgpu_ring_generic_pad_ib,
.begin_use = amdgpu_uvd_ring_begin_use,
.end_use = amdgpu_uvd_ring_end_use,
--
2.7.4
