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From 08fee9e5fc38ce4a48413a2716d689510b91a8d1 Mon Sep 17 00:00:00 2001
From: Leo Liu <leo.liu@amd.com>
Date: Thu, 17 May 2018 13:52:00 -0400
Subject: [PATCH 4483/5725] drm/amdgpu: fix insert nop for UVD5 ring
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
NO_OP register should be writen to 0
Signed-off-by: Leo Liu <leo.liu@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
---
drivers/gpu/drm/amd/amdgpu/uvd_v5_0.c | 15 +++++++++++++--
1 file changed, 13 insertions(+), 2 deletions(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/uvd_v5_0.c b/drivers/gpu/drm/amd/amdgpu/uvd_v5_0.c
index 01810f2..693944f 100644
--- a/drivers/gpu/drm/amd/amdgpu/uvd_v5_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/uvd_v5_0.c
@@ -567,6 +567,18 @@ static void uvd_v5_0_ring_emit_ib(struct amdgpu_ring *ring,
amdgpu_ring_write(ring, ib->length_dw);
}
+static void uvd_v5_0_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);
+ }
+}
+
static bool uvd_v5_0_is_idle(void *handle)
{
struct amdgpu_device *adev = (struct amdgpu_device *)handle;
@@ -867,7 +879,6 @@ static const struct amd_ip_funcs uvd_v5_0_ip_funcs = {
static const struct amdgpu_ring_funcs uvd_v5_0_ring_funcs = {
.type = AMDGPU_RING_TYPE_UVD,
.align_mask = 0xf,
- .nop = PACKET0(mmUVD_NO_OP, 0),
.support_64bit_ptrs = false,
.get_rptr = uvd_v5_0_ring_get_rptr,
.get_wptr = uvd_v5_0_ring_get_wptr,
@@ -884,7 +895,7 @@ static const struct amdgpu_ring_funcs uvd_v5_0_ring_funcs = {
.emit_hdp_invalidate = uvd_v5_0_ring_emit_hdp_invalidate,
.test_ring = uvd_v5_0_ring_test_ring,
.test_ib = amdgpu_uvd_ring_test_ib,
- .insert_nop = amdgpu_ring_insert_nop,
+ .insert_nop = uvd_v5_0_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
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