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drm/ttm: allow reserving more than one shared slot v3

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Let's support simultaneous submissions to multiple engines.

v2: rename the field to num_shared and fix up all users
v3: rebased

Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Michel Dänzer <michel.daenzer@amd.com>
Reviewed-by: Junwei Zhang <Jerry.Zhang@amd.com>
Reviewed-by: Huang Rui <ray.huang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Christian König
2018-09-19 16:25:08 +02:00
committed by Alex Deucher
parent c50fe0c5b1
commit a9f34c70fd
14 changed files with 35 additions and 30 deletions
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10
drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c
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@@ -535,7 +535,7 @@ static void add_kgd_mem_to_kfd_bo_list(struct kgd_mem *mem,
struct amdgpu_bo *bo = mem->bo;
INIT_LIST_HEAD(&entry->head);
entry->shared = true;
entry->num_shared = 1;
entry->bo = &bo->tbo;
mutex_lock(&process_info->lock);
if (userptr)
@@ -676,7 +676,7 @@ static int reserve_bo_and_vm(struct kgd_mem *mem,
ctx->kfd_bo.priority = 0;
ctx->kfd_bo.tv.bo = &bo->tbo;
ctx->kfd_bo.tv.shared = true;
ctx->kfd_bo.tv.num_shared = 1;
ctx->kfd_bo.user_pages = NULL;
list_add(&ctx->kfd_bo.tv.head, &ctx->list);
@@ -740,7 +740,7 @@ static int reserve_bo_and_cond_vms(struct kgd_mem *mem,
ctx->kfd_bo.priority = 0;
ctx->kfd_bo.tv.bo = &bo->tbo;
ctx->kfd_bo.tv.shared = true;
ctx->kfd_bo.tv.num_shared = 1;
ctx->kfd_bo.user_pages = NULL;
list_add(&ctx->kfd_bo.tv.head, &ctx->list);
@@ -1830,7 +1830,7 @@ static int validate_invalid_user_pages(struct amdkfd_process_info *process_info)
validate_list.head) {
list_add_tail(&mem->resv_list.head, &resv_list);
mem->resv_list.bo = mem->validate_list.bo;
mem->resv_list.shared = mem->validate_list.shared;
mem->resv_list.num_shared = mem->validate_list.num_shared;
}
/* Reserve all BOs and page tables for validation */
@@ -2049,7 +2049,7 @@ int amdgpu_amdkfd_gpuvm_restore_process_bos(void *info, struct dma_fence **ef)
list_add_tail(&mem->resv_list.head, &ctx.list);
mem->resv_list.bo = mem->validate_list.bo;
mem->resv_list.shared = mem->validate_list.shared;
mem->resv_list.num_shared = mem->validate_list.num_shared;
}
ret = ttm_eu_reserve_buffers(&ctx.ticket, &ctx.list,