From 9242829a87e970773628f30522d2278dd91890ec Mon Sep 17 00:00:00 2001 From: Maarten Lankhorst Date: Wed, 9 Apr 2014 16:18:58 +0200 Subject: [PATCH] drm/nouveau: Keep only a single list for validation. Maintain the original order to handle VRAM/GART/mixed correctly for Acked-by: Ben Skeggs --- drivers/gpu/drm/nouveau/nouveau_gem.c | 96 ++++++++++----------------- 1 file changed, 34 insertions(+), 62 deletions(-) diff --git a/drivers/gpu/drm/nouveau/nouveau_gem.c b/drivers/gpu/drm/nouveau/nouveau_gem.c index 4120289ff53e..1ba5f9e0052c 100644 --- a/drivers/gpu/drm/nouveau/nouveau_gem.c +++ b/drivers/gpu/drm/nouveau/nouveau_gem.c @@ -284,21 +284,17 @@ nouveau_gem_set_domain(struct drm_gem_object *gem, uint32_t read_domains, } struct validate_op { - struct list_head vram_list; - struct list_head gart_list; - struct list_head both_list; + struct list_head list; struct ww_acquire_ctx ticket; }; static void -validate_fini_list(struct list_head *list, struct nouveau_fence *fence, - struct ww_acquire_ctx *ticket) +validate_fini_no_ticket(struct validate_op *op, struct nouveau_fence *fence) { - struct list_head *entry, *tmp; struct nouveau_bo *nvbo; - list_for_each_safe(entry, tmp, list) { - nvbo = list_entry(entry, struct nouveau_bo, entry); + while (!list_empty(&op->list)) { + nvbo = list_entry(op->list.next, struct nouveau_bo, entry); if (likely(fence)) nouveau_bo_fence(nvbo, fence); @@ -310,19 +306,11 @@ validate_fini_list(struct list_head *list, struct nouveau_fence *fence, list_del(&nvbo->entry); nvbo->reserved_by = NULL; - ttm_bo_unreserve_ticket(&nvbo->bo, ticket); + ttm_bo_unreserve_ticket(&nvbo->bo, &op->ticket); drm_gem_object_unreference_unlocked(&nvbo->gem); } } -static void -validate_fini_no_ticket(struct validate_op *op, struct nouveau_fence *fence) -{ - validate_fini_list(&op->vram_list, fence, &op->ticket); - validate_fini_list(&op->gart_list, fence, &op->ticket); - validate_fini_list(&op->both_list, fence, &op->ticket); -} - static void validate_fini(struct validate_op *op, struct nouveau_fence *fence) { @@ -340,6 +328,9 @@ validate_init(struct nouveau_channel *chan, struct drm_file *file_priv, int trycnt = 0; int ret, i; struct nouveau_bo *res_bo = NULL; + LIST_HEAD(gart_list); + LIST_HEAD(vram_list); + LIST_HEAD(both_list); ww_acquire_init(&op->ticket, &reservation_ww_class); retry: @@ -356,9 +347,8 @@ retry: gem = drm_gem_object_lookup(dev, file_priv, b->handle); if (!gem) { NV_PRINTK(error, cli, "Unknown handle 0x%08x\n", b->handle); - ww_acquire_done(&op->ticket); - validate_fini(op, NULL); - return -ENOENT; + ret = -ENOENT; + break; } nvbo = nouveau_gem_object(gem); if (nvbo == res_bo) { @@ -371,13 +361,15 @@ retry: NV_PRINTK(error, cli, "multiple instances of buffer %d on " "validation list\n", b->handle); drm_gem_object_unreference_unlocked(gem); - ww_acquire_done(&op->ticket); - validate_fini(op, NULL); - return -EINVAL; + ret = -EINVAL; + break; } ret = ttm_bo_reserve(&nvbo->bo, true, false, true, &op->ticket); if (ret) { + list_splice_tail_init(&vram_list, &op->list); + list_splice_tail_init(&gart_list, &op->list); + list_splice_tail_init(&both_list, &op->list); validate_fini_no_ticket(op, NULL); if (unlikely(ret == -EDEADLK)) { ret = ttm_bo_reserve_slowpath(&nvbo->bo, true, @@ -386,12 +378,9 @@ retry: res_bo = nvbo; } if (unlikely(ret)) { - ww_acquire_done(&op->ticket); - ww_acquire_fini(&op->ticket); - drm_gem_object_unreference_unlocked(gem); if (ret != -ERESTARTSYS) NV_PRINTK(error, cli, "fail reserve\n"); - return ret; + break; } } @@ -400,27 +389,32 @@ retry: nvbo->pbbo_index = i; if ((b->valid_domains & NOUVEAU_GEM_DOMAIN_VRAM) && (b->valid_domains & NOUVEAU_GEM_DOMAIN_GART)) - list_add_tail(&nvbo->entry, &op->both_list); + list_add_tail(&nvbo->entry, &both_list); else if (b->valid_domains & NOUVEAU_GEM_DOMAIN_VRAM) - list_add_tail(&nvbo->entry, &op->vram_list); + list_add_tail(&nvbo->entry, &vram_list); else if (b->valid_domains & NOUVEAU_GEM_DOMAIN_GART) - list_add_tail(&nvbo->entry, &op->gart_list); + list_add_tail(&nvbo->entry, &gart_list); else { NV_PRINTK(error, cli, "invalid valid domains: 0x%08x\n", b->valid_domains); - list_add_tail(&nvbo->entry, &op->both_list); - ww_acquire_done(&op->ticket); - validate_fini(op, NULL); - return -EINVAL; + list_add_tail(&nvbo->entry, &both_list); + ret = -EINVAL; + break; } if (nvbo == res_bo) goto retry; } ww_acquire_done(&op->ticket); - return 0; + list_splice_tail(&vram_list, &op->list); + list_splice_tail(&gart_list, &op->list); + list_splice_tail(&both_list, &op->list); + if (ret) + validate_fini(op, NULL); + return ret; + } static int @@ -492,11 +486,9 @@ nouveau_gem_pushbuf_validate(struct nouveau_channel *chan, struct validate_op *op, int *apply_relocs) { struct nouveau_cli *cli = nouveau_cli(file_priv); - int ret, relocs = 0; + int ret; - INIT_LIST_HEAD(&op->vram_list); - INIT_LIST_HEAD(&op->gart_list); - INIT_LIST_HEAD(&op->both_list); + INIT_LIST_HEAD(&op->list); if (nr_buffers == 0) return 0; @@ -508,34 +500,14 @@ nouveau_gem_pushbuf_validate(struct nouveau_channel *chan, return ret; } - ret = validate_list(chan, cli, &op->vram_list, pbbo, user_buffers); + ret = validate_list(chan, cli, &op->list, pbbo, user_buffers); if (unlikely(ret < 0)) { if (ret != -ERESTARTSYS) - NV_PRINTK(error, cli, "validate vram_list\n"); + NV_PRINTK(error, cli, "validating bo list\n"); validate_fini(op, NULL); return ret; } - relocs += ret; - - ret = validate_list(chan, cli, &op->gart_list, pbbo, user_buffers); - if (unlikely(ret < 0)) { - if (ret != -ERESTARTSYS) - NV_PRINTK(error, cli, "validate gart_list\n"); - validate_fini(op, NULL); - return ret; - } - relocs += ret; - - ret = validate_list(chan, cli, &op->both_list, pbbo, user_buffers); - if (unlikely(ret < 0)) { - if (ret != -ERESTARTSYS) - NV_PRINTK(error, cli, "validate both_list\n"); - validate_fini(op, NULL); - return ret; - } - relocs += ret; - - *apply_relocs = relocs; + *apply_relocs = ret; return 0; } -- 2.34.1