[PATCH 03/13] drm/amdgpu: detect timeout error when deactivating hqd

[Andres Rodriguez]

Handle HQD deactivation timeouts instead of ignoring them.

Signed-off-by: Andres Rodriguez <andre...@gmail.com>
---
 drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c | 22 ++++++++++++++++++++--
 1 file changed, 20 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c 
b/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c
index 5d0e2c8..442cd66 100644
--- a/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c
@@ -4883,6 +4883,7 @@ static int gfx_v8_0_kiq_queue_init(struct amdgpu_ring 
*ring,
                                   struct vi_mqd *mqd,
                                   u64 mqd_gpu_addr)
 {
+       int r = 0;
        struct amdgpu_device *adev = ring->adev;
        struct amdgpu_kiq *kiq = &adev->gfx.kiq;
        uint64_t eop_gpu_addr;
@@ -4904,7 +4905,12 @@ static int gfx_v8_0_kiq_queue_init(struct amdgpu_ring 
*ring,
        gfx_v8_0_mqd_init(adev, mqd, mqd_gpu_addr, eop_gpu_addr, ring);
 
        if (is_kiq) {
-               gfx_v8_0_mqd_deactivate(adev);
+               r = gfx_v8_0_mqd_deactivate(adev);
+               if (r) {
+                       dev_err(adev->dev, "failed to deactivate ring %s\n", 
ring->name);
+                       goto out_unlock;
+               }
+
                gfx_v8_0_enable_doorbell(adev, ring->use_doorbell);
                gfx_v8_0_mqd_commit(adev, mqd);
        }
@@ -4918,6 +4924,12 @@ static int gfx_v8_0_kiq_queue_init(struct amdgpu_ring 
*ring,
                gfx_v8_0_map_queue_enable(&kiq->ring, ring);
 
        return 0;
+
+out_unlock:
+       vi_srbm_select(adev, 0, 0, 0, 0);
+       mutex_unlock(&adev->srbm_mutex);
+
+       return r;
 }
 
 static void gfx_v8_0_kiq_free_queue(struct amdgpu_device *adev)
@@ -5051,10 +5063,16 @@ static int gfx_v8_0_compute_queue_init(struct 
amdgpu_device *adev,
 
        gfx_v8_0_mqd_init(adev, mqd, mqd_gpu_addr, eop_gpu_addr, ring);
 
-       gfx_v8_0_mqd_deactivate(adev);
+       r = gfx_v8_0_mqd_deactivate(adev);
+       if (r) {
+               dev_err(adev->dev, "failed to deactivate ring %s\n", 
ring->name);
+               goto out_unlock;
+       }
+
        gfx_v8_0_enable_doorbell(adev, ring->use_doorbell);
        gfx_v8_0_mqd_commit(adev, mqd);
 
+out_unlock:
        vi_srbm_select(adev, 0, 0, 0, 0);
        mutex_unlock(&adev->srbm_mutex);
 
-- 
2.9.3

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