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([2a02:810d:4b3f:de9c:642:1aff:fe31:a19f]) by smtp.gmail.com with ESMTPSA id cd16-20020a170906b35000b00991faf3810esm6107279ejb.146.2023.10.08.16.32.40 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 08 Oct 2023 16:32:41 -0700 (PDT) From: Danilo Krummrich To: airlied@gmail.com, daniel@ffwll.ch, matthew.brost@intel.com, thomas.hellstrom@linux.intel.com, sarah.walker@imgtec.com, donald.robson@imgtec.com, boris.brezillon@collabora.com, christian.koenig@amd.com, faith@gfxstrand.net Subject: [PATCH drm-misc-next v6 6/6] drm/nouveau: use GPUVM common infrastructure Date: Mon, 9 Oct 2023 01:32:06 +0200 Message-ID: <20231008233212.13815-7-dakr@redhat.com> X-Mailer: git-send-email 2.41.0 In-Reply-To: <20231008233212.13815-1-dakr@redhat.com> References: <20231008233212.13815-1-dakr@redhat.com> MIME-Version: 1.0 X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: nouveau@lists.freedesktop.org, Danilo Krummrich , linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" GPUVM provides common infrastructure to track external and evicted GEM objects as well as locking and validation helpers. Especially external and evicted object tracking is a huge improvement compared to the current brute force approach of iterating all mappings in order to lock and validate the GPUVM's GEM objects. Hence, make us of it. Signed-off-by: Danilo Krummrich --- drivers/gpu/drm/nouveau/nouveau_bo.c | 4 +- drivers/gpu/drm/nouveau/nouveau_exec.c | 52 +++---------- drivers/gpu/drm/nouveau/nouveau_exec.h | 4 - drivers/gpu/drm/nouveau/nouveau_sched.h | 4 +- drivers/gpu/drm/nouveau/nouveau_uvmm.c | 99 ++++++++++++++++--------- 5 files changed, 80 insertions(+), 83 deletions(-) diff --git a/drivers/gpu/drm/nouveau/nouveau_bo.c b/drivers/gpu/drm/nouveau/nouveau_bo.c index dbb3facfd23d..62371fe39e96 100644 --- a/drivers/gpu/drm/nouveau/nouveau_bo.c +++ b/drivers/gpu/drm/nouveau/nouveau_bo.c @@ -1067,17 +1067,18 @@ nouveau_bo_move(struct ttm_buffer_object *bo, bool evict, { struct nouveau_drm *drm = nouveau_bdev(bo->bdev); struct nouveau_bo *nvbo = nouveau_bo(bo); + struct drm_gem_object *obj = &bo->base; struct ttm_resource *old_reg = bo->resource; struct nouveau_drm_tile *new_tile = NULL; int ret = 0; - if (new_reg->mem_type == TTM_PL_TT) { ret = nouveau_ttm_tt_bind(bo->bdev, bo->ttm, new_reg); if (ret) return ret; } + drm_gpuvm_bo_gem_evict(obj, evict); nouveau_bo_move_ntfy(bo, new_reg); ret = ttm_bo_wait_ctx(bo, ctx); if (ret) @@ -1142,6 +1143,7 @@ nouveau_bo_move(struct ttm_buffer_object *bo, bool evict, out_ntfy: if (ret) { nouveau_bo_move_ntfy(bo, bo->resource); + drm_gpuvm_bo_gem_evict(obj, !evict); } return ret; } diff --git a/drivers/gpu/drm/nouveau/nouveau_exec.c b/drivers/gpu/drm/nouveau/nouveau_exec.c index b4239af29e5a..ba6913a3efb6 100644 --- a/drivers/gpu/drm/nouveau/nouveau_exec.c +++ b/drivers/gpu/drm/nouveau/nouveau_exec.c @@ -1,7 +1,5 @@ // SPDX-License-Identifier: MIT -#include - #include "nouveau_drv.h" #include "nouveau_gem.h" #include "nouveau_mem.h" @@ -91,9 +89,6 @@ nouveau_exec_job_submit(struct nouveau_job *job) struct nouveau_exec_job *exec_job = to_nouveau_exec_job(job); struct nouveau_cli *cli = job->cli; struct nouveau_uvmm *uvmm = nouveau_cli_uvmm(cli); - struct drm_exec *exec = &job->exec; - struct drm_gem_object *obj; - unsigned long index; int ret; ret = nouveau_fence_new(&exec_job->fence); @@ -101,52 +96,29 @@ nouveau_exec_job_submit(struct nouveau_job *job) return ret; nouveau_uvmm_lock(uvmm); - drm_exec_init(exec, DRM_EXEC_INTERRUPTIBLE_WAIT | - DRM_EXEC_IGNORE_DUPLICATES); - drm_exec_until_all_locked(exec) { - struct drm_gpuva *va; - - drm_gpuvm_for_each_va(va, &uvmm->base) { - if (unlikely(va == &uvmm->base.kernel_alloc_node)) - continue; - - ret = drm_exec_prepare_obj(exec, va->gem.obj, 1); - drm_exec_retry_on_contention(exec); - if (ret) - goto err_uvmm_unlock; - } + job->vm_exec.vm = &uvmm->base; + ret = drm_gpuvm_exec_lock(&job->vm_exec, 1, false); + if (ret) { + nouveau_uvmm_unlock(uvmm); + return ret; } nouveau_uvmm_unlock(uvmm); - drm_exec_for_each_locked_object(exec, index, obj) { - struct nouveau_bo *nvbo = nouveau_gem_object(obj); - - ret = nouveau_bo_validate(nvbo, true, false); - if (ret) - goto err_exec_fini; + ret = drm_gpuvm_exec_validate(&job->vm_exec); + if (ret) { + drm_gpuvm_exec_unlock(&job->vm_exec); + return ret; } return 0; - -err_uvmm_unlock: - nouveau_uvmm_unlock(uvmm); -err_exec_fini: - drm_exec_fini(exec); - return ret; - } static void nouveau_exec_job_armed_submit(struct nouveau_job *job) { - struct drm_exec *exec = &job->exec; - struct drm_gem_object *obj; - unsigned long index; - - drm_exec_for_each_locked_object(exec, index, obj) - dma_resv_add_fence(obj->resv, job->done_fence, job->resv_usage); - - drm_exec_fini(exec); + drm_gpuvm_exec_resv_add_fence(&job->vm_exec, job->done_fence, + job->resv_usage, job->resv_usage); + drm_gpuvm_exec_unlock(&job->vm_exec); } static struct dma_fence * diff --git a/drivers/gpu/drm/nouveau/nouveau_exec.h b/drivers/gpu/drm/nouveau/nouveau_exec.h index 778cacd90f65..b815de2428f3 100644 --- a/drivers/gpu/drm/nouveau/nouveau_exec.h +++ b/drivers/gpu/drm/nouveau/nouveau_exec.h @@ -3,16 +3,12 @@ #ifndef __NOUVEAU_EXEC_H__ #define __NOUVEAU_EXEC_H__ -#include - #include "nouveau_drv.h" #include "nouveau_sched.h" struct nouveau_exec_job_args { struct drm_file *file_priv; struct nouveau_sched_entity *sched_entity; - - struct drm_exec exec; struct nouveau_channel *chan; struct { diff --git a/drivers/gpu/drm/nouveau/nouveau_sched.h b/drivers/gpu/drm/nouveau/nouveau_sched.h index 27ac19792597..54379af6f925 100644 --- a/drivers/gpu/drm/nouveau/nouveau_sched.h +++ b/drivers/gpu/drm/nouveau/nouveau_sched.h @@ -5,7 +5,7 @@ #include -#include +#include #include #include "nouveau_drv.h" @@ -54,7 +54,7 @@ struct nouveau_job { struct drm_file *file_priv; struct nouveau_cli *cli; - struct drm_exec exec; + struct drm_gpuvm_exec vm_exec; enum dma_resv_usage resv_usage; struct dma_fence *done_fence; diff --git a/drivers/gpu/drm/nouveau/nouveau_uvmm.c b/drivers/gpu/drm/nouveau/nouveau_uvmm.c index 436b0ac74ffe..ba0f7fcb6f7c 100644 --- a/drivers/gpu/drm/nouveau/nouveau_uvmm.c +++ b/drivers/gpu/drm/nouveau/nouveau_uvmm.c @@ -438,8 +438,9 @@ nouveau_uvma_region_complete(struct nouveau_uvma_region *reg) static void op_map_prepare_unwind(struct nouveau_uvma *uvma) { + struct drm_gpuva *va = &uvma->va; nouveau_uvma_gem_put(uvma); - drm_gpuva_remove(&uvma->va); + drm_gpuva_remove(va); nouveau_uvma_free(uvma); } @@ -468,6 +469,7 @@ nouveau_uvmm_sm_prepare_unwind(struct nouveau_uvmm *uvmm, break; case DRM_GPUVA_OP_REMAP: { struct drm_gpuva_op_remap *r = &op->remap; + struct drm_gpuva *va = r->unmap->va; if (r->next) op_map_prepare_unwind(new->next); @@ -475,7 +477,7 @@ nouveau_uvmm_sm_prepare_unwind(struct nouveau_uvmm *uvmm, if (r->prev) op_map_prepare_unwind(new->prev); - op_unmap_prepare_unwind(r->unmap->va); + op_unmap_prepare_unwind(va); break; } case DRM_GPUVA_OP_UNMAP: @@ -634,6 +636,7 @@ nouveau_uvmm_sm_prepare(struct nouveau_uvmm *uvmm, goto unwind; } } + break; } case DRM_GPUVA_OP_REMAP: { @@ -1146,13 +1149,44 @@ bind_link_gpuvas(struct bind_job_op *bop) } } +static int +bind_lock_extra(struct drm_gpuvm_exec *vm_exec, unsigned int num_fences) +{ + struct nouveau_uvmm_bind_job *bind_job = vm_exec->extra.priv; + struct drm_exec *exec = &vm_exec->exec; + struct bind_job_op *op; + int ret; + + list_for_each_op(op, &bind_job->ops) { + struct drm_gpuva_op *va_op; + + if (IS_ERR_OR_NULL(op->ops)) + continue; + + drm_gpuva_for_each_op(va_op, op->ops) { + struct drm_gem_object *obj = op_gem_obj(va_op); + + if (unlikely(!obj)) + continue; + + if (va_op->op != DRM_GPUVA_OP_UNMAP) + continue; + + ret = drm_exec_prepare_obj(exec, obj, num_fences); + if (ret) + return ret; + } + } + + return 0; +} + static int nouveau_uvmm_bind_job_submit(struct nouveau_job *job) { struct nouveau_uvmm *uvmm = nouveau_cli_uvmm(job->cli); struct nouveau_uvmm_bind_job *bind_job = to_uvmm_bind_job(job); struct nouveau_sched_entity *entity = job->entity; - struct drm_exec *exec = &job->exec; struct bind_job_op *op; int ret; @@ -1170,6 +1204,8 @@ nouveau_uvmm_bind_job_submit(struct nouveau_job *job) dma_resv_unlock(obj->resv); if (IS_ERR(op->vm_bo)) return PTR_ERR(op->vm_bo); + + drm_gpuvm_bo_extobj_add(op->vm_bo); } ret = bind_validate_op(job, op); @@ -1192,6 +1228,7 @@ nouveau_uvmm_bind_job_submit(struct nouveau_job *job) * unwind all GPU VA space changes on failure. */ nouveau_uvmm_lock(uvmm); + list_for_each_op(op, &bind_job->ops) { switch (op->op) { case OP_MAP_SPARSE: @@ -1303,30 +1340,13 @@ nouveau_uvmm_bind_job_submit(struct nouveau_job *job) } } - drm_exec_init(exec, DRM_EXEC_INTERRUPTIBLE_WAIT | - DRM_EXEC_IGNORE_DUPLICATES); - drm_exec_until_all_locked(exec) { - list_for_each_op(op, &bind_job->ops) { - struct drm_gpuva_op *va_op; + job->vm_exec.vm = &uvmm->base; + job->vm_exec.extra.fn = bind_lock_extra; + job->vm_exec.extra.priv = bind_job; - if (IS_ERR_OR_NULL(op->ops)) - continue; - - drm_gpuva_for_each_op(va_op, op->ops) { - struct drm_gem_object *obj = op_gem_obj(va_op); - - if (unlikely(!obj)) - continue; - - ret = drm_exec_prepare_obj(exec, obj, 1); - drm_exec_retry_on_contention(exec); - if (ret) { - op = list_last_op(&bind_job->ops); - goto unwind; - } - } - } - } + ret = drm_gpuvm_exec_lock(&job->vm_exec, 1, false); + if (ret) + goto unwind_continue; list_for_each_op(op, &bind_job->ops) { struct drm_gpuva_op *va_op; @@ -1426,21 +1446,16 @@ nouveau_uvmm_bind_job_submit(struct nouveau_job *job) } nouveau_uvmm_unlock(uvmm); - drm_exec_fini(exec); + drm_gpuvm_exec_unlock(&job->vm_exec); return ret; } static void nouveau_uvmm_bind_job_armed_submit(struct nouveau_job *job) { - struct drm_exec *exec = &job->exec; - struct drm_gem_object *obj; - unsigned long index; - - drm_exec_for_each_locked_object(exec, index, obj) - dma_resv_add_fence(obj->resv, job->done_fence, job->resv_usage); - - drm_exec_fini(exec); + drm_gpuvm_exec_resv_add_fence(&job->vm_exec, job->done_fence, + job->resv_usage, job->resv_usage); + drm_gpuvm_exec_unlock(&job->vm_exec); } static struct dma_fence * @@ -1832,6 +1847,18 @@ nouveau_uvmm_bo_unmap_all(struct nouveau_bo *nvbo) } } +static int +nouveau_uvmm_bo_validate(struct drm_gpuvm_bo *vm_bo, struct drm_exec *exec) +{ + struct nouveau_bo *nvbo = nouveau_gem_object(vm_bo->obj); + + return nouveau_bo_validate(nvbo, true, false); +} + +static const struct drm_gpuvm_ops gpuvm_ops = { + .vm_bo_validate = nouveau_uvmm_bo_validate, +}; + int nouveau_uvmm_init(struct nouveau_uvmm *uvmm, struct nouveau_cli *cli, u64 kernel_managed_addr, u64 kernel_managed_size) @@ -1874,7 +1901,7 @@ nouveau_uvmm_init(struct nouveau_uvmm *uvmm, struct nouveau_cli *cli, NOUVEAU_VA_SPACE_START, NOUVEAU_VA_SPACE_END, kernel_managed_addr, kernel_managed_size, - NULL); + &gpuvm_ops); /* GPUVM takes care from here on. */ drm_gem_object_put(r_obj);