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drm/amdgpu/mes: implement adding mes gang

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Gang is a group of the same type queue, which is the scheduling
unit of mes hardware scheduler.

Signed-off-by: Jack Xiao <Jack.Xiao@amd.com>
Acked-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Jack Xiao 2020-03-27 15:27:48 +08:00 committed by Alex Deucher
parent 063a38d662
commit 5d0f619f72
2 changed files with 79 additions and 0 deletions
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67
drivers/gpu/drm/amd/amdgpu/amdgpu_mes.c
View File

@ -349,3 +349,70 @@ void amdgpu_mes_destroy_process(struct amdgpu_device *adev, int pasid)
mutex_unlock(&adev->mes.mutex);
}
int amdgpu_mes_add_gang(struct amdgpu_device *adev, int pasid,
struct amdgpu_mes_gang_properties *gprops,
int *gang_id)
{
struct amdgpu_mes_process *process;
struct amdgpu_mes_gang *gang;
int r;
mutex_lock(&adev->mes.mutex);
process = idr_find(&adev->mes.pasid_idr, pasid);
if (!process) {
DRM_ERROR("pasid %d doesn't exist\n", pasid);
mutex_unlock(&adev->mes.mutex);
return -EINVAL;
}
/* allocate the mes gang buffer */
gang = kzalloc(sizeof(struct amdgpu_mes_gang), GFP_KERNEL);
if (!gang) {
mutex_unlock(&adev->mes.mutex);
return -ENOMEM;
}
/* add the mes gang to idr list */
r = idr_alloc(&adev->mes.gang_id_idr, gang, 1, 0,
GFP_KERNEL);
if (r < 0) {
kfree(gang);
mutex_unlock(&adev->mes.mutex);
return r;
}
gang->gang_id = r;
*gang_id = r;
/* allocate the gang context bo and map it to cpu space */
r = amdgpu_bo_create_kernel(adev, AMDGPU_MES_GANG_CTX_SIZE, PAGE_SIZE,
AMDGPU_GEM_DOMAIN_GTT,
&gang->gang_ctx_bo,
&gang->gang_ctx_gpu_addr,
&gang->gang_ctx_cpu_ptr);
if (r) {
DRM_ERROR("failed to allocate process context bo\n");
goto clean_up;
}
memset(gang->gang_ctx_cpu_ptr, 0, AMDGPU_MES_GANG_CTX_SIZE);
INIT_LIST_HEAD(&gang->queue_list);
gang->process = process;
gang->priority = gprops->priority;
gang->gang_quantum = gprops->gang_quantum ?
gprops->gang_quantum : adev->mes.default_gang_quantum;
gang->global_priority_level = gprops->global_priority_level;
gang->inprocess_gang_priority = gprops->inprocess_gang_priority;
list_add_tail(&gang->list, &process->gang_list);
mutex_unlock(&adev->mes.mutex);
return 0;
clean_up:
idr_remove(&adev->mes.gang_id_idr, gang->gang_id);
kfree(gang);
mutex_unlock(&adev->mes.mutex);
return r;
}

12
drivers/gpu/drm/amd/amdgpu/amdgpu_mes.h
View File

@ -159,6 +159,14 @@ struct amdgpu_mes_queue {
struct amdgpu_ring *ring;
};
struct amdgpu_mes_gang_properties {
uint32_t priority;
uint32_t gang_quantum;
uint32_t inprocess_gang_priority;
uint32_t priority_level;
int global_priority_level;
};
struct mes_add_queue_input {
uint32_t process_id;
uint64_t page_table_base_addr;
@ -218,4 +226,8 @@ int amdgpu_mes_create_process(struct amdgpu_device *adev, int pasid,
struct amdgpu_vm *vm);
void amdgpu_mes_destroy_process(struct amdgpu_device *adev, int pasid);
int amdgpu_mes_add_gang(struct amdgpu_device *adev, int pasid,
struct amdgpu_mes_gang_properties *gprops,
int *gang_id);
#endif /* __AMDGPU_MES_H__ */