Commit f276beb3 authored by Shirish S's avatar Shirish S Committed by Greg Kroah-Hartman

drm/amdgpu/{uvd,vcn}: fetch ring's read_ptr after alloc

[ Upstream commit 517b91f4 ]

[What]
readptr read always returns zero, since most likely
these blocks are either power or clock gated.

[How]
fetch rptr after amdgpu_ring_alloc() which informs
the power management code that the block is about to be
used and hence the gating is turned off.
Signed-off-by: default avatarLouis Li <Ching-shih.Li@amd.com>
Signed-off-by: default avatarShirish S <shirish.s@amd.com>
Reviewed-by: default avatarChristian König <christian.koenig@amd.com>
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
Signed-off-by: default avatarSasha Levin <sashal@kernel.org>
parent 7abeffff
......@@ -431,7 +431,7 @@ int amdgpu_vcn_dec_ring_test_ib(struct amdgpu_ring *ring, long timeout)
int amdgpu_vcn_enc_ring_test_ring(struct amdgpu_ring *ring)
{
struct amdgpu_device *adev = ring->adev;
uint32_t rptr = amdgpu_ring_get_rptr(ring);
uint32_t rptr;
unsigned i;
int r;
......@@ -441,6 +441,9 @@ int amdgpu_vcn_enc_ring_test_ring(struct amdgpu_ring *ring)
ring->idx, r);
return r;
}
rptr = amdgpu_ring_get_rptr(ring);
amdgpu_ring_write(ring, VCN_ENC_CMD_END);
amdgpu_ring_commit(ring);
......
......@@ -170,7 +170,7 @@ static void uvd_v6_0_enc_ring_set_wptr(struct amdgpu_ring *ring)
static int uvd_v6_0_enc_ring_test_ring(struct amdgpu_ring *ring)
{
struct amdgpu_device *adev = ring->adev;
uint32_t rptr = amdgpu_ring_get_rptr(ring);
uint32_t rptr;
unsigned i;
int r;
......@@ -180,6 +180,9 @@ static int uvd_v6_0_enc_ring_test_ring(struct amdgpu_ring *ring)
ring->idx, r);
return r;
}
rptr = amdgpu_ring_get_rptr(ring);
amdgpu_ring_write(ring, HEVC_ENC_CMD_END);
amdgpu_ring_commit(ring);
......
......@@ -175,7 +175,7 @@ static void uvd_v7_0_enc_ring_set_wptr(struct amdgpu_ring *ring)
static int uvd_v7_0_enc_ring_test_ring(struct amdgpu_ring *ring)
{
struct amdgpu_device *adev = ring->adev;
uint32_t rptr = amdgpu_ring_get_rptr(ring);
uint32_t rptr;
unsigned i;
int r;
......@@ -188,6 +188,9 @@ static int uvd_v7_0_enc_ring_test_ring(struct amdgpu_ring *ring)
ring->me, ring->idx, r);
return r;
}
rptr = amdgpu_ring_get_rptr(ring);
amdgpu_ring_write(ring, HEVC_ENC_CMD_END);
amdgpu_ring_commit(ring);
......
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