From cff5c1332486ced8ff4180e957e04983cb72a39e Mon Sep 17 00:00:00 2001 From: Ben Skeggs Date: Wed, 6 Oct 2010 16:16:59 +1000 Subject: drm/nouveau: add more fine-grained locking to channel list + structures Signed-off-by: Ben Skeggs --- drivers/gpu/drm/nouveau/nouveau_gem.c | 28 +++++++++++++++++++--------- 1 file changed, 19 insertions(+), 9 deletions(-) (limited to 'drivers/gpu/drm/nouveau/nouveau_gem.c') diff --git a/drivers/gpu/drm/nouveau/nouveau_gem.c b/drivers/gpu/drm/nouveau/nouveau_gem.c index 1f2301d26c0..454d5ceb28f 100644 --- a/drivers/gpu/drm/nouveau/nouveau_gem.c +++ b/drivers/gpu/drm/nouveau/nouveau_gem.c @@ -146,11 +146,6 @@ nouveau_gem_ioctl_new(struct drm_device *dev, void *data, if (unlikely(dev_priv->ttm.bdev.dev_mapping == NULL)) dev_priv->ttm.bdev.dev_mapping = dev_priv->dev->dev_mapping; - if (req->channel_hint) { - NOUVEAU_GET_USER_CHANNEL_WITH_RETURN(req->channel_hint, - file_priv, chan); - } - if (req->info.domain & NOUVEAU_GEM_DOMAIN_VRAM) flags |= TTM_PL_FLAG_VRAM; if (req->info.domain & NOUVEAU_GEM_DOMAIN_GART) @@ -161,10 +156,18 @@ nouveau_gem_ioctl_new(struct drm_device *dev, void *data, if (!nouveau_gem_tile_flags_valid(dev, req->info.tile_flags)) return -EINVAL; + if (req->channel_hint) { + chan = nouveau_channel_get(dev, file_priv, req->channel_hint); + if (IS_ERR(chan)) + return PTR_ERR(chan); + } + ret = nouveau_gem_new(dev, chan, req->info.size, req->align, flags, req->info.tile_mode, req->info.tile_flags, false, (req->info.domain & NOUVEAU_GEM_DOMAIN_MAPPABLE), &nvbo); + if (chan) + nouveau_channel_put(&chan); if (ret) return ret; @@ -341,9 +344,7 @@ retry: return -EINVAL; } - mutex_unlock(&drm_global_mutex); ret = ttm_bo_wait_cpu(&nvbo->bo, false); - mutex_lock(&drm_global_mutex); if (ret) { NV_ERROR(dev, "fail wait_cpu\n"); return ret; @@ -585,7 +586,9 @@ nouveau_gem_ioctl_pushbuf(struct drm_device *dev, void *data, struct nouveau_fence *fence = NULL; int i, j, ret = 0, do_reloc = 0; - NOUVEAU_GET_USER_CHANNEL_WITH_RETURN(req->channel, file_priv, chan); + chan = nouveau_channel_get(dev, file_priv, req->channel); + if (IS_ERR(chan)) + return PTR_ERR(chan); req->vram_available = dev_priv->fb_aper_free; req->gart_available = dev_priv->gart_info.aper_free; @@ -595,28 +598,34 @@ nouveau_gem_ioctl_pushbuf(struct drm_device *dev, void *data, if (unlikely(req->nr_push > NOUVEAU_GEM_MAX_PUSH)) { NV_ERROR(dev, "pushbuf push count exceeds limit: %d max %d\n", req->nr_push, NOUVEAU_GEM_MAX_PUSH); + nouveau_channel_put(&chan); return -EINVAL; } if (unlikely(req->nr_buffers > NOUVEAU_GEM_MAX_BUFFERS)) { NV_ERROR(dev, "pushbuf bo count exceeds limit: %d max %d\n", req->nr_buffers, NOUVEAU_GEM_MAX_BUFFERS); + nouveau_channel_put(&chan); return -EINVAL; } if (unlikely(req->nr_relocs > NOUVEAU_GEM_MAX_RELOCS)) { NV_ERROR(dev, "pushbuf reloc count exceeds limit: %d max %d\n", req->nr_relocs, NOUVEAU_GEM_MAX_RELOCS); + nouveau_channel_put(&chan); return -EINVAL; } push = u_memcpya(req->push, req->nr_push, sizeof(*push)); - if (IS_ERR(push)) + if (IS_ERR(push)) { + nouveau_channel_put(&chan); return PTR_ERR(push); + } bo = u_memcpya(req->buffers, req->nr_buffers, sizeof(*bo)); if (IS_ERR(bo)) { kfree(push); + nouveau_channel_put(&chan); return PTR_ERR(bo); } @@ -750,6 +759,7 @@ out_next: req->suffix1 = 0x00000000; } + nouveau_channel_put(&chan); return ret; } -- cgit v1.2.3-70-g09d2