[PATCH 08/14] drm/amdgpu: add selftest framework for UMSCH
Alex Deucher
alexander.deucher at amd.com
Thu Aug 24 21:58:29 UTC 2023
From: Lang Yu <Lang.Yu at amd.com>
Prepare for VPE and VCN queue submission test.
Signed-off-by: Lang Yu <Lang.Yu at amd.com>
Reviewed-by: Leo Liu <leo.liu at amd.com>
Reviewed-by: Veerabadhran Gopalakrishnan <Veerabadhran.Gopalakrishnan at amd.com>
Signed-off-by: Alex Deucher <alexander.deucher at amd.com>
---
drivers/gpu/drm/amd/amdgpu/amdgpu_umsch_mm.c | 406 ++++++++++++++++++-
1 file changed, 405 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_umsch_mm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_umsch_mm.c
index 29457c503c85..ced963aaf7cf 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_umsch_mm.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_umsch_mm.c
@@ -28,6 +28,408 @@
#include "amdgpu_umsch_mm.h"
#include "umsch_mm_v4_0.h"
+struct umsch_mm_test_ctx_data {
+ uint8_t process_csa[PAGE_SIZE];
+ uint8_t vpe_ctx_csa[PAGE_SIZE];
+ uint8_t vcn_ctx_csa[PAGE_SIZE];
+};
+
+struct umsch_mm_test_mqd_data {
+ uint8_t vpe_mqd[PAGE_SIZE];
+ uint8_t vcn_mqd[PAGE_SIZE];
+};
+
+struct umsch_mm_test_ring_data {
+ uint8_t vpe_ring[PAGE_SIZE];
+ uint8_t vpe_ib[PAGE_SIZE];
+ uint8_t vcn_ring[PAGE_SIZE];
+ uint8_t vcn_ib[PAGE_SIZE];
+};
+
+struct umsch_mm_test_queue_info {
+ uint64_t mqd_addr;
+ uint64_t csa_addr;
+ uint32_t doorbell_offset_0;
+ uint32_t doorbell_offset_1;
+ enum UMSCH_SWIP_ENGINE_TYPE engine;
+};
+
+struct umsch_mm_test {
+ struct amdgpu_bo *ctx_data_obj;
+ uint64_t ctx_data_gpu_addr;
+ uint32_t *ctx_data_cpu_addr;
+
+ struct amdgpu_bo *mqd_data_obj;
+ uint64_t mqd_data_gpu_addr;
+ uint32_t *mqd_data_cpu_addr;
+
+ struct amdgpu_bo *ring_data_obj;
+ uint64_t ring_data_gpu_addr;
+ uint32_t *ring_data_cpu_addr;
+
+
+ struct amdgpu_vm *vm;
+ struct amdgpu_bo_va *bo_va;
+ uint32_t pasid;
+ uint32_t vm_cntx_cntl;
+ uint32_t num_queues;
+};
+
+static int map_ring_data(struct amdgpu_device *adev, struct amdgpu_vm *vm,
+ struct amdgpu_bo *bo, struct amdgpu_bo_va **bo_va,
+ uint64_t addr, uint32_t size)
+{
+ struct ww_acquire_ctx ticket;
+ struct list_head list;
+ struct amdgpu_bo_list_entry pd;
+ struct ttm_validate_buffer csa_tv;
+ struct amdgpu_sync sync;
+ int r;
+
+ INIT_LIST_HEAD(&list);
+ INIT_LIST_HEAD(&csa_tv.head);
+ csa_tv.bo = &bo->tbo;
+ csa_tv.num_shared = 1;
+
+ list_add(&csa_tv.head, &list);
+ amdgpu_vm_get_pd_bo(vm, &list, &pd);
+
+ amdgpu_sync_create(&sync);
+
+ r = ttm_eu_reserve_buffers(&ticket, &list, true, NULL);
+ if (r)
+ return r;
+
+ *bo_va = amdgpu_vm_bo_add(adev, vm, bo);
+ if (!*bo_va) {
+ ttm_eu_backoff_reservation(&ticket, &list);
+ return -ENOMEM;
+ }
+
+ r = amdgpu_vm_bo_map(adev, *bo_va, addr, 0, size,
+ AMDGPU_PTE_READABLE | AMDGPU_PTE_WRITEABLE |
+ AMDGPU_PTE_EXECUTABLE);
+
+ if (r) {
+ amdgpu_vm_bo_del(adev, *bo_va);
+ ttm_eu_backoff_reservation(&ticket, &list);
+ return r;
+ }
+
+
+ r = amdgpu_vm_bo_update(adev, *bo_va, false);
+ if (r)
+ goto error;
+
+ amdgpu_sync_fence(&sync, (*bo_va)->last_pt_update);
+
+ r = amdgpu_vm_update_pdes(adev, vm, false);
+ if (r)
+ goto error;
+
+ amdgpu_sync_fence(&sync, vm->last_update);
+
+ amdgpu_sync_wait(&sync, false);
+
+ ttm_eu_backoff_reservation(&ticket, &list);
+ amdgpu_sync_free(&sync);
+
+ return 0;
+error:
+ ttm_eu_backoff_reservation(&ticket, &list);
+ amdgpu_sync_free(&sync);
+ return r;
+}
+
+static int unmap_ring_data(struct amdgpu_device *adev, struct amdgpu_vm *vm,
+ struct amdgpu_bo *bo, struct amdgpu_bo_va *bo_va,
+ uint64_t addr)
+{
+ struct ww_acquire_ctx ticket;
+ struct list_head list;
+ struct amdgpu_bo_list_entry pd;
+ struct ttm_validate_buffer csa_tv;
+ int r;
+
+ INIT_LIST_HEAD(&list);
+ INIT_LIST_HEAD(&csa_tv.head);
+ csa_tv.bo = &bo->tbo;
+ csa_tv.num_shared = 1;
+
+ list_add(&csa_tv.head, &list);
+ amdgpu_vm_get_pd_bo(vm, &list, &pd);
+
+ r = ttm_eu_reserve_buffers(&ticket, &list, true, NULL);
+ if (r)
+ return r;
+
+ r = amdgpu_vm_bo_unmap(adev, bo_va, addr);
+ if (r) {
+ ttm_eu_backoff_reservation(&ticket, &list);
+ return r;
+ }
+
+ amdgpu_vm_bo_del(adev, bo_va);
+
+ ttm_eu_backoff_reservation(&ticket, &list);
+
+ return 0;
+}
+
+static void setup_vpe_queue(struct amdgpu_device *adev,
+ struct umsch_mm_test *test,
+ struct umsch_mm_test_queue_info *qinfo)
+{
+}
+
+static void setup_vcn_queue(struct amdgpu_device *adev,
+ struct umsch_mm_test *test,
+ struct umsch_mm_test_queue_info *qinfo)
+{
+}
+
+static int add_test_queue(struct amdgpu_device *adev,
+ struct umsch_mm_test *test,
+ struct umsch_mm_test_queue_info *qinfo)
+{
+ struct umsch_mm_add_queue_input queue_input = {};
+ int r;
+
+ queue_input.process_id = test->pasid;
+ queue_input.page_table_base_addr = amdgpu_gmc_pd_addr(test->vm->root.bo);
+
+ 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.process_csa_addr = test->ctx_data_gpu_addr +
+ offsetof(struct umsch_mm_test_ctx_data, process_csa);
+
+ queue_input.context_quantum = 10000; /* 1ms */
+ queue_input.context_csa_addr = qinfo->csa_addr;
+
+ queue_input.inprocess_context_priority = CONTEXT_PRIORITY_LEVEL_NORMAL;
+ queue_input.context_global_priority_level = CONTEXT_PRIORITY_LEVEL_NORMAL;
+ queue_input.doorbell_offset_0 = qinfo->doorbell_offset_0;
+ queue_input.doorbell_offset_1 = qinfo->doorbell_offset_1;
+
+ queue_input.engine_type = qinfo->engine;
+ queue_input.mqd_addr = qinfo->mqd_addr;
+ queue_input.vm_context_cntl = test->vm_cntx_cntl;
+
+ amdgpu_umsch_mm_lock(&adev->umsch_mm);
+ r = adev->umsch_mm.funcs->add_queue(&adev->umsch_mm, &queue_input);
+ amdgpu_umsch_mm_unlock(&adev->umsch_mm);
+ if (r)
+ return r;
+
+ return 0;
+}
+
+static int remove_test_queue(struct amdgpu_device *adev,
+ struct umsch_mm_test *test,
+ struct umsch_mm_test_queue_info *qinfo)
+{
+ struct umsch_mm_remove_queue_input queue_input = {};
+ int r;
+
+ queue_input.doorbell_offset_0 = qinfo->doorbell_offset_0;
+ queue_input.doorbell_offset_1 = qinfo->doorbell_offset_1;
+ queue_input.context_csa_addr = qinfo->csa_addr;
+
+ amdgpu_umsch_mm_lock(&adev->umsch_mm);
+ r = adev->umsch_mm.funcs->remove_queue(&adev->umsch_mm, &queue_input);
+ amdgpu_umsch_mm_unlock(&adev->umsch_mm);
+ if (r)
+ return r;
+
+ return 0;
+}
+
+static int submit_vpe_queue(struct amdgpu_device *adev, struct umsch_mm_test *test)
+{
+ return 0;
+}
+
+static int submit_vcn_queue(struct amdgpu_device *adev, struct umsch_mm_test *test)
+{
+ return 0;
+}
+
+static int setup_umsch_mm_test(struct amdgpu_device *adev,
+ struct umsch_mm_test *test)
+{
+ struct amdgpu_vmhub *hub = &adev->vmhub[AMDGPU_MMHUB0(0)];
+ int r;
+
+ test->vm_cntx_cntl = hub->vm_cntx_cntl;
+
+ test->vm = kzalloc(sizeof(*test->vm), GFP_KERNEL);
+ if (!test->vm) {
+ r = -ENOMEM;
+ return r;
+ }
+
+ r = amdgpu_vm_init(adev, test->vm, -1);
+ if (r)
+ goto error_free_vm;
+
+ test->pasid = amdgpu_pasid_alloc(16);
+ if (test->pasid < 0) {
+ r = test->pasid;
+ goto error_fini_vm;
+ }
+
+ r = amdgpu_bo_create_kernel(adev, sizeof(struct umsch_mm_test_ctx_data),
+ PAGE_SIZE, AMDGPU_GEM_DOMAIN_GTT,
+ &test->ctx_data_obj,
+ &test->ctx_data_gpu_addr,
+ (void **)&test->ctx_data_cpu_addr);
+ if (r)
+ goto error_free_pasid;
+
+ memset(test->ctx_data_cpu_addr, 0, sizeof(struct umsch_mm_test_ctx_data));
+
+ r = amdgpu_bo_create_kernel(adev, PAGE_SIZE,
+ PAGE_SIZE, AMDGPU_GEM_DOMAIN_GTT,
+ &test->mqd_data_obj,
+ &test->mqd_data_gpu_addr,
+ (void **)&test->mqd_data_cpu_addr);
+ if (r)
+ goto error_free_ctx_data_obj;
+
+ memset(test->mqd_data_cpu_addr, 0, PAGE_SIZE);
+
+ r = amdgpu_bo_create_kernel(adev, sizeof(struct umsch_mm_test_ring_data),
+ PAGE_SIZE, AMDGPU_GEM_DOMAIN_GTT,
+ &test->ring_data_obj,
+ NULL,
+ (void **)&test->ring_data_cpu_addr);
+ if (r)
+ goto error_free_mqd_data_obj;
+
+ memset(test->ring_data_cpu_addr, 0, sizeof(struct umsch_mm_test_ring_data));
+
+ test->ring_data_gpu_addr = AMDGPU_VA_RESERVED_SIZE;
+ r = map_ring_data(adev, test->vm, test->ring_data_obj, &test->bo_va,
+ test->ring_data_gpu_addr, sizeof(struct umsch_mm_test_ring_data));
+ if (r)
+ goto error_free_ring_data_obj;
+
+ return 0;
+
+error_free_ring_data_obj:
+ amdgpu_bo_free_kernel(&test->ring_data_obj, NULL,
+ (void **)&test->ring_data_cpu_addr);
+error_free_mqd_data_obj:
+ amdgpu_bo_free_kernel(&test->mqd_data_obj, &test->mqd_data_gpu_addr,
+ (void **)&test->mqd_data_cpu_addr);
+error_free_ctx_data_obj:
+ amdgpu_bo_free_kernel(&test->ctx_data_obj, &test->ctx_data_gpu_addr,
+ (void **)&test->ctx_data_cpu_addr);
+error_free_pasid:
+ amdgpu_pasid_free(test->pasid);
+error_fini_vm:
+ amdgpu_vm_fini(adev, test->vm);
+error_free_vm:
+ kfree(test->vm);
+
+ return r;
+}
+
+static void cleanup_umsch_mm_test(struct amdgpu_device *adev,
+ struct umsch_mm_test *test)
+{
+ unmap_ring_data(adev, test->vm, test->ring_data_obj,
+ test->bo_va, test->ring_data_gpu_addr);
+ amdgpu_bo_free_kernel(&test->mqd_data_obj, &test->mqd_data_gpu_addr,
+ (void **)&test->mqd_data_cpu_addr);
+ amdgpu_bo_free_kernel(&test->ring_data_obj, NULL,
+ (void **)&test->ring_data_cpu_addr);
+ amdgpu_bo_free_kernel(&test->ctx_data_obj, &test->ctx_data_gpu_addr,
+ (void **)&test->ctx_data_cpu_addr);
+ amdgpu_pasid_free(test->pasid);
+ amdgpu_vm_fini(adev, test->vm);
+ kfree(test->vm);
+}
+
+static int setup_test_queues(struct amdgpu_device *adev,
+ struct umsch_mm_test *test,
+ struct umsch_mm_test_queue_info *qinfo)
+{
+ int i, r;
+
+ for (i = 0; i < test->num_queues; i++) {
+ if (qinfo[i].engine == UMSCH_SWIP_ENGINE_TYPE_VPE)
+ setup_vpe_queue(adev, test, &qinfo[i]);
+ else
+ setup_vcn_queue(adev, test, &qinfo[i]);
+
+ r = add_test_queue(adev, test, &qinfo[i]);
+ if (r)
+ return r;
+ }
+
+ return 0;
+}
+
+static int submit_test_queues(struct amdgpu_device *adev,
+ struct umsch_mm_test *test,
+ struct umsch_mm_test_queue_info *qinfo)
+{
+ int i, r;
+
+ for (i = 0; i < test->num_queues; i++) {
+ if (qinfo[i].engine == UMSCH_SWIP_ENGINE_TYPE_VPE)
+ r = submit_vpe_queue(adev, test);
+ else
+ r = submit_vcn_queue(adev, test);
+ if (r)
+ return r;
+ }
+
+ return 0;
+}
+
+static void cleanup_test_queues(struct amdgpu_device *adev,
+ struct umsch_mm_test *test,
+ struct umsch_mm_test_queue_info *qinfo)
+{
+ int i;
+
+ for (i = 0; i < test->num_queues; i++)
+ remove_test_queue(adev, test, &qinfo[i]);
+}
+
+static int umsch_mm_test(struct amdgpu_device *adev)
+{
+ struct umsch_mm_test_queue_info qinfo[] = {};
+ struct umsch_mm_test test = { .num_queues = ARRAY_SIZE(qinfo) };
+ int r;
+
+ r = setup_umsch_mm_test(adev, &test);
+ if (r)
+ return r;
+
+ r = setup_test_queues(adev, &test, qinfo);
+ if (r)
+ goto cleanup;
+
+ r = submit_test_queues(adev, &test, qinfo);
+ if (r)
+ goto cleanup;
+
+ cleanup_test_queues(adev, &test, qinfo);
+ cleanup_umsch_mm_test(adev, &test);
+
+ return 0;
+
+cleanup:
+ cleanup_test_queues(adev, &test, qinfo);
+ cleanup_umsch_mm_test(adev, &test);
+ return r;
+}
+
int amdgpu_umsch_mm_submit_pkt(struct amdgpu_umsch_mm *umsch, void *pkt, int ndws)
{
struct amdgpu_ring *ring = &umsch->ring;
@@ -272,7 +674,9 @@ static int umsch_mm_early_init(void *handle)
static int umsch_mm_late_init(void *handle)
{
- return 0;
+ struct amdgpu_device *adev = (struct amdgpu_device *)handle;
+
+ return umsch_mm_test(adev);
}
static int umsch_mm_sw_init(void *handle)
--
2.41.0
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