Add API for resetting user queues.
Signed-off-by: Alex Deucher <alexander.deuc...@amd.com>
---
drivers/gpu/drm/amd/amdgpu/amdgpu_mes.c | 43 +++++++++++++++++++++++++
drivers/gpu/drm/amd/amdgpu/amdgpu_mes.h | 9 ++++++
2 files changed, 52 insertions(+)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_mes.c
b/drivers/gpu/drm/amd/amdgpu/amdgpu_mes.c
index 1739aa11cbd2..b3d6a9fa6775 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_mes.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_mes.c
@@ -774,6 +774,49 @@ int amdgpu_mes_remove_hw_queue(struct amdgpu_device *adev,
int queue_id)
return 0;
}
+int amdgpu_mes_reset_hw_queue(struct amdgpu_device *adev, int queue_id)
+{
+ unsigned long flags;
+ struct amdgpu_mes_queue *queue;
+ struct amdgpu_mes_gang *gang;
+ struct mes_reset_queue_input queue_input;
+ int r;
+
+ /*
+ * Avoid taking any other locks under MES lock to avoid circular
+ * lock dependencies.
+ */
+ amdgpu_mes_lock(&adev->mes);
+
+ /* remove the mes gang from idr list */
+ spin_lock_irqsave(&adev->mes.queue_id_lock, flags);
+
+ queue = idr_find(&adev->mes.queue_id_idr, queue_id);
+ if (!queue) {
+ spin_unlock_irqrestore(&adev->mes.queue_id_lock, flags);
+ amdgpu_mes_unlock(&adev->mes);
+ DRM_ERROR("queue id %d doesn't exist\n", queue_id);
+ return -EINVAL;
+ }
+ spin_unlock_irqrestore(&adev->mes.queue_id_lock, flags);
+
+ DRM_DEBUG("try to reset queue, doorbell off = 0x%llx\n",
+ queue->doorbell_off);
+
+ gang = queue->gang;
+ queue_input.doorbell_offset = queue->doorbell_off;
+ queue_input.gang_context_addr = gang->gang_ctx_gpu_addr;
+
+ r = adev->mes.funcs->reset_hw_queue(&adev->mes, &queue_input);
+ if (r)
+ DRM_ERROR("failed to reset hardware queue, queue id = %d\n",
+ queue_id);
+
+ amdgpu_mes_unlock(&adev->mes);
+
+ return 0;
+}
+
int amdgpu_mes_map_legacy_queue(struct amdgpu_device *adev,
struct amdgpu_ring *ring)
{
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_mes.h
b/drivers/gpu/drm/amd/amdgpu/amdgpu_mes.h
index 4456956c325b..771b63db1846 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_mes.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_mes.h
@@ -248,6 +248,11 @@ struct mes_remove_queue_input {
uint64_t gang_context_addr;
};
+struct mes_reset_queue_input {
+ uint32_t doorbell_offset;
+ uint64_t gang_context_addr;
+};
+
struct mes_map_legacy_queue_input {
uint32_t queue_type;
uint32_t doorbell_offset;
@@ -360,6 +365,9 @@ struct amdgpu_mes_funcs {
int (*reset_legacy_queue)(struct amdgpu_mes *mes,
struct mes_reset_legacy_queue_input *input);
+
+ int (*reset_hw_queue)(struct amdgpu_mes *mes,
+ struct mes_reset_queue_input *input);
};
#define amdgpu_mes_kiq_hw_init(adev) (adev)->mes.kiq_hw_init((adev))
@@ -387,6 +395,7 @@ int amdgpu_mes_add_hw_queue(struct amdgpu_device *adev, int
gang_id,
struct amdgpu_mes_queue_properties *qprops,
int *queue_id);
int amdgpu_mes_remove_hw_queue(struct amdgpu_device *adev, int queue_id);
+int amdgpu_mes_reset_hw_queue(struct amdgpu_device *adev, int queue_id);
int amdgpu_mes_map_legacy_queue(struct amdgpu_device *adev,
struct amdgpu_ring *ring);
--
2.45.2
