Patch the IBs for the second UVD instance so that userspace don't need
to care about the instance they submit to.
v2: use direct IB patching
Signed-off-by: Christian König <christian.koe...@amd.com>
---
drivers/gpu/drm/amd/amdgpu/uvd_v7_0.c | 27 +++++++++++++++++++++++++++
1 file changed, 27 insertions(+)
diff --git a/drivers/gpu/drm/amd/amdgpu/uvd_v7_0.c
b/drivers/gpu/drm/amd/amdgpu/uvd_v7_0.c
index db5f3d78ab12..0895b80fcd37 100644
--- a/drivers/gpu/drm/amd/amdgpu/uvd_v7_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/uvd_v7_0.c
@@ -1205,6 +1205,32 @@ static int uvd_v7_0_ring_test_ring(struct amdgpu_ring
*ring)
return r;
}
+/**
+ * uvd_v7_0_enc_ring_test_ring - test if UVD ENC ring is working
+ *
+ * @ring: the engine to test on
+ *
+ */
+static int uvd_v7_0_ring_patch_cs(struct amdgpu_cs_parser *p, uint32_t ib_idx)
+{
+ struct amdgpu_ib *ib = &p->job->ibs[ib_idx];
+ unsigned i;
+
+ /* No patching necessary for the first instance */
+ if (!p->ring->me)
+ return 0;
+
+ for (i = 0; i < ib->length_dw; i += 2) {
+ uint32_t reg = amdgpu_get_ib_value(p, ib_idx, i);
+
+ reg -= p->adev->reg_offset[UVD_HWIP][0][1];
+ reg += p->adev->reg_offset[UVD_HWIP][1][1];
+
+ amdgpu_set_ib_value(p, ib_idx, i, reg);
+ }
+ return 0;
+}
+
/**
* uvd_v7_0_ring_emit_ib - execute indirect buffer
*
@@ -1697,6 +1723,7 @@ static const struct amdgpu_ring_funcs
uvd_v7_0_ring_vm_funcs = {
.get_rptr = uvd_v7_0_ring_get_rptr,
.get_wptr = uvd_v7_0_ring_get_wptr,
.set_wptr = uvd_v7_0_ring_set_wptr,
+ .patch_cs = uvd_v7_0_ring_patch_cs,
.emit_frame_size =
6 + /* hdp invalidate */
SOC15_FLUSH_GPU_TLB_NUM_WREG * 6 +
--
2.14.1
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