This patch adds new functions to map/unmap a usermode queue into
the FW, using the MES ring. As soon as this mapping is done, the
queue would be considered ready to accept the workload.
V1: Addressed review comments from Alex on the RFC patch series
- Map/Unmap should be IP specific.
V2:
Addressed review comments from Christian:
- Fix the wptr_mc_addr calculation (moved into another patch)
Addressed review comments from Alex:
- Do not add fptrs for map/unmap
V3: Integration with doorbell manager
V4: Rebase
V5: Use gfx_v11_0 for function names (Alex)
V6: Removed queue->proc/gang/fw_ctx_address variables and doing the
address calculations locally to keep the queue structure GEN
independent (Alex)
V7: Added R-B from Alex
Cc: Alex Deucher <alexander.deucher@xxxxxxx>
Cc: Christian Koenig <christian.koenig@xxxxxxx>
Reviewed-by: Alex Deucher <alexander.deucher@xxxxxxx>
Signed-off-by: Shashank Sharma <shashank.sharma@xxxxxxx>
---
drivers/gpu/drm/amd/amdgpu/gfx_v11_0.c | 72 ++++++++++++++++++++++++++
1 file changed, 72 insertions(+)
diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v11_0.c b/drivers/gpu/drm/amd/amdgpu/gfx_v11_0.c
index 4b0c3fc63411..d7d374822352 100644
--- a/drivers/gpu/drm/amd/amdgpu/gfx_v11_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gfx_v11_0.c
@@ -6405,6 +6405,67 @@ const struct amdgpu_ip_block_version gfx_v11_0_ip_block =
.funcs = &gfx_v11_0_ip_funcs,
};
+static int gfx_v11_0_userq_map(struct amdgpu_userq_mgr *uq_mgr,
+ struct amdgpu_usermode_queue *queue,
+ struct amdgpu_mqd_prop *userq_props)
+{
+ struct amdgpu_device *adev = uq_mgr->adev;
+ struct amdgpu_userq_obj *ctx = &queue->fw_obj;
+ struct mes_add_queue_input queue_input;
+ int r;
+
+ memset(&queue_input, 0x0, sizeof(struct mes_add_queue_input));
+
+ queue_input.process_va_start = 0;
+ queue_input.process_va_end = (adev->vm_manager.max_pfn - 1) << AMDGPU_GPU_PAGE_SHIFT;
+ queue_input.process_quantum = 100000; /* 10ms */
+ queue_input.gang_quantum = 10000; /* 1ms */
+ queue_input.paging = false;
+
+ queue_input.process_context_addr = ctx->gpu_addr;
+ queue_input.gang_context_addr = ctx->gpu_addr + AMDGPU_USERQ_PROC_CTX_SZ;
+ queue_input.inprocess_gang_priority = AMDGPU_MES_PRIORITY_LEVEL_NORMAL;
+ queue_input.gang_global_priority_level = AMDGPU_MES_PRIORITY_LEVEL_NORMAL;
+
+ queue_input.process_id = queue->vm->pasid;
+ queue_input.queue_type = queue->queue_type;
+ queue_input.mqd_addr = queue->mqd.gpu_addr;
+ queue_input.wptr_addr = userq_props->wptr_gpu_addr;
+ queue_input.queue_size = userq_props->queue_size >> 2;
+ queue_input.doorbell_offset = userq_props->doorbell_index;
+ queue_input.page_table_base_addr = amdgpu_gmc_pd_addr(queue->vm->root.bo);
+
+ amdgpu_mes_lock(&adev->mes);
+ r = adev->mes.funcs->add_hw_queue(&adev->mes, &queue_input);
+ amdgpu_mes_unlock(&adev->mes);
+ if (r) {
+ DRM_ERROR("Failed to map queue in HW, err (%d)\n", r);
+ return r;
+ }
+
+ DRM_DEBUG_DRIVER("Queue (doorbell:%d) mapped successfully\n", userq_props->doorbell_index);
+ return 0;
+}
+
+static void gfx_v11_0_userq_unmap(struct amdgpu_userq_mgr *uq_mgr,
+ struct amdgpu_usermode_queue *queue)
+{
+ struct amdgpu_device *adev = uq_mgr->adev;
+ struct mes_remove_queue_input queue_input;
+ struct amdgpu_userq_obj *ctx = &queue->fw_obj;
+ int r;
+
+ memset(&queue_input, 0x0, sizeof(struct mes_remove_queue_input));
+ queue_input.doorbell_offset = queue->doorbell_index;
+ queue_input.gang_context_addr = ctx->gpu_addr + AMDGPU_USERQ_PROC_CTX_SZ;
+
+ amdgpu_mes_lock(&adev->mes);
+ r = adev->mes.funcs->remove_hw_queue(&adev->mes, &queue_input);
+ amdgpu_mes_unlock(&adev->mes);
+ if (r)
+ DRM_ERROR("Failed to unmap queue in HW, err (%d)\n", r);
+}
+
static int gfx_v11_0_userq_create_ctx_space(struct amdgpu_userq_mgr *uq_mgr,
struct amdgpu_usermode_queue *queue,
struct drm_amdgpu_userq_mqd_gfx_v11_0 *mqd_user)
@@ -6490,8 +6551,18 @@ static int gfx_v11_0_userq_mqd_create(struct amdgpu_userq_mgr *uq_mgr,
goto free_mqd;
}
+ /* Map userqueue into FW using MES */
+ r = gfx_v11_0_userq_map(uq_mgr, queue, &userq_props);
+ if (r) {
+ DRM_ERROR("Failed to init MQD\n");
+ goto free_ctx;
+ }
+
return 0;
+free_ctx:
+ amdgpu_userqueue_destroy_object(uq_mgr, &queue->fw_obj);
+
free_mqd:
amdgpu_userqueue_destroy_object(uq_mgr, &queue->mqd);
kfree(mqd_user);
@@ -6501,6 +6572,7 @@ static int gfx_v11_0_userq_mqd_create(struct amdgpu_userq_mgr *uq_mgr,
static void
gfx_v11_0_userq_mqd_destroy(struct amdgpu_userq_mgr *uq_mgr, struct amdgpu_usermode_queue *queue)
{
+ gfx_v11_0_userq_unmap(uq_mgr, queue);
amdgpu_userqueue_destroy_object(uq_mgr, &queue->fw_obj);
amdgpu_userqueue_destroy_object(uq_mgr, &queue->mqd);
}
--
2.42.0
