Add API for resetting kernel queues.
Signed-off-by: Alex Deucher <alexander.deuc...@amd.com>
---
drivers/gpu/drm/amd/amdgpu/amdgpu_mes.c | 24 ++++++++++++++++++++++++
drivers/gpu/drm/amd/amdgpu/amdgpu_mes.h | 16 ++++++++++++++++
2 files changed, 40 insertions(+)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_mes.c
b/drivers/gpu/drm/amd/amdgpu/amdgpu_mes.c
index e499d6ba306b..1739aa11cbd2 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_mes.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_mes.c
@@ -819,6 +819,30 @@ int amdgpu_mes_unmap_legacy_queue(struct amdgpu_device
*adev,
return r;
}
+int amdgpu_mes_reset_legacy_queue(struct amdgpu_device *adev,
+ struct amdgpu_ring *ring,
+ unsigned int vmid)
+{
+ struct mes_reset_legacy_queue_input queue_input;
+ int r;
+
+ memset(&queue_input, 0, sizeof(queue_input));
+
+ queue_input.queue_type = ring->funcs->type;
+ queue_input.doorbell_offset = ring->doorbell_index;
+ queue_input.pipe_id = ring->pipe;
+ queue_input.queue_id = ring->queue;
+ queue_input.mqd_addr = amdgpu_bo_gpu_offset(ring->mqd_obj);
+ queue_input.wptr_addr = ring->wptr_gpu_addr;
+ queue_input.vmid = vmid;
+
+ r = adev->mes.funcs->reset_legacy_queue(&adev->mes, &queue_input);
+ if (r)
+ DRM_ERROR("failed to reset legacy queue\n");
+
+ return r;
+}
+
uint32_t amdgpu_mes_rreg(struct amdgpu_device *adev, uint32_t reg)
{
struct mes_misc_op_input op_input;
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_mes.h
b/drivers/gpu/drm/amd/amdgpu/amdgpu_mes.h
index e11051271f71..4456956c325b 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_mes.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_mes.h
@@ -279,6 +279,16 @@ struct mes_resume_gang_input {
uint64_t gang_context_addr;
};
+struct mes_reset_legacy_queue_input {
+ uint32_t queue_type;
+ uint32_t doorbell_offset;
+ uint32_t pipe_id;
+ uint32_t queue_id;
+ uint64_t mqd_addr;
+ uint64_t wptr_addr;
+ uint32_t vmid;
+};
+
enum mes_misc_opcode {
MES_MISC_OP_WRITE_REG,
MES_MISC_OP_READ_REG,
@@ -347,6 +357,9 @@ struct amdgpu_mes_funcs {
int (*misc_op)(struct amdgpu_mes *mes,
struct mes_misc_op_input *input);
+
+ int (*reset_legacy_queue)(struct amdgpu_mes *mes,
+ struct mes_reset_legacy_queue_input *input);
};
#define amdgpu_mes_kiq_hw_init(adev) (adev)->mes.kiq_hw_init((adev))
@@ -381,6 +394,9 @@ int amdgpu_mes_unmap_legacy_queue(struct amdgpu_device
*adev,
struct amdgpu_ring *ring,
enum amdgpu_unmap_queues_action action,
u64 gpu_addr, u64 seq);
+int amdgpu_mes_reset_legacy_queue(struct amdgpu_device *adev,
+ struct amdgpu_ring *ring,
+ unsigned int vmid);
uint32_t amdgpu_mes_rreg(struct amdgpu_device *adev, uint32_t reg);
int amdgpu_mes_wreg(struct amdgpu_device *adev,
--
2.45.2
