[PATCH 24/33] drm/amdgpu/jpeg5: add queue reset

[Alex Deucher]

Add queue reset support for jpeg 5.0.0.
Use the new helpers to re-emit the unprocessed state
after resetting the queue.

Reviewed-by: Sathishkumar S <sathishkumar.sundararaju at amd.com>
Tested-by: Sathishkumar S <sathishkumar.sundararaju at amd.com>
Signed-off-by: Alex Deucher <alexander.deucher at amd.com>
---
 drivers/gpu/drm/amd/amdgpu/jpeg_v5_0_0.c | 23 ++++++++++++++++++++++-
 1 file changed, 22 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/jpeg_v5_0_0.c b/drivers/gpu/drm/amd/amdgpu/jpeg_v5_0_0.c
index 31d213ccbe0a8..d6b565c29b4b2 100644
--- a/drivers/gpu/drm/amd/amdgpu/jpeg_v5_0_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/jpeg_v5_0_0.c
@@ -120,9 +120,10 @@ static int jpeg_v5_0_0_sw_init(struct amdgpu_ip_block *ip_block)
 	if (r)
 		return r;
 
-	/* TODO: Add queue reset mask when FW fully supports it */
 	adev->jpeg.supported_reset =
 		amdgpu_get_soft_full_reset_mask(&adev->jpeg.inst[0].ring_dec[0]);
+	if (!amdgpu_sriov_vf(adev))
+		adev->jpeg.supported_reset = AMDGPU_RESET_TYPE_PER_QUEUE;
 	r = amdgpu_jpeg_sysfs_reset_mask_init(adev);
 	if (r)
 		return r;
@@ -644,6 +645,25 @@ static int jpeg_v5_0_0_process_interrupt(struct amdgpu_device *adev,
 	return 0;
 }
 
+static int jpeg_v5_0_0_ring_reset(struct amdgpu_ring *ring,
+				  unsigned int vmid,
+				  struct amdgpu_fence *timedout_fence)
+{
+	int r;
+
+	if (!(ring->adev->jpeg.supported_reset & AMDGPU_RESET_TYPE_PER_QUEUE))
+		return -EOPNOTSUPP;
+
+	amdgpu_ring_reset_helper_begin(ring, timedout_fence);
+	r = jpeg_v5_0_0_stop(ring->adev);
+	if (r)
+		return r;
+	r = jpeg_v5_0_0_start(ring->adev);
+	if (r)
+		return r;
+	return amdgpu_ring_reset_helper_end(ring, timedout_fence);
+}
+
 static const struct amd_ip_funcs jpeg_v5_0_0_ip_funcs = {
 	.name = "jpeg_v5_0_0",
 	.early_init = jpeg_v5_0_0_early_init,
@@ -689,6 +709,7 @@ static const struct amdgpu_ring_funcs jpeg_v5_0_0_dec_ring_vm_funcs = {
 	.emit_wreg = jpeg_v4_0_3_dec_ring_emit_wreg,
 	.emit_reg_wait = jpeg_v4_0_3_dec_ring_emit_reg_wait,
 	.emit_reg_write_reg_wait = amdgpu_ring_emit_reg_write_reg_wait_helper,
+	.reset = jpeg_v5_0_0_ring_reset,
 };
 
 static void jpeg_v5_0_0_set_dec_ring_funcs(struct amdgpu_device *adev)
-- 
2.50.0