From: Boris Brezillon <boris.brezillon@collabora.com>
To: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: Thomas Zimmermann <tzimmermann@suse.de>,
Gerd Hoffmann <kraxel@redhat.com>,
DRI Development <dri-devel@lists.freedesktop.org>,
Daniel Vetter <daniel.vetter@intel.com>
Subject: Re: [PATCH] drm/shmem-helpers: Simplify dma-buf importing
Date: Fri, 29 May 2020 15:49:23 +0200 [thread overview]
Message-ID: <20200529154923.0027b7f9@collabora.com> (raw)
In-Reply-To: <20200520180232.956489-1-daniel.vetter@ffwll.ch>
On Wed, 20 May 2020 20:02:32 +0200
Daniel Vetter <daniel.vetter@ffwll.ch> wrote:
> @@ -695,36 +702,16 @@ drm_gem_shmem_prime_import_sg_table(struct drm_device *dev,
> struct sg_table *sgt)
> {
> size_t size = PAGE_ALIGN(attach->dmabuf->size);
> - size_t npages = size >> PAGE_SHIFT;
> struct drm_gem_shmem_object *shmem;
> - int ret;
>
> shmem = drm_gem_shmem_create(dev, size);
> if (IS_ERR(shmem))
> return ERR_CAST(shmem);
>
> - shmem->pages = kvmalloc_array(npages, sizeof(struct page *), GFP_KERNEL);
> - if (!shmem->pages) {
> - ret = -ENOMEM;
> - goto err_free_gem;
> - }
> -
> - ret = drm_prime_sg_to_page_addr_arrays(sgt, shmem->pages, NULL, npages);
> - if (ret < 0)
> - goto err_free_array;
> -
> shmem->sgt = sgt;
> - shmem->pages_use_count = 1; /* Permanently pinned from our point of view */
Keep the above line and that should be good.
>
> DRM_DEBUG_PRIME("size = %zu\n", size);
>
> return &shmem->base;
> -
> -err_free_array:
> - kvfree(shmem->pages);
> -err_free_gem:
> - drm_gem_object_put(&shmem->base);
> -
> - return ERR_PTR(ret);
> }
> EXPORT_SYMBOL_GPL(drm_gem_shmem_prime_import_sg_table);
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next prev parent reply other threads:[~2020-05-29 13:49 UTC|newest]
Thread overview: 51+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-05-11 9:35 [PATCH 0/9] shmem helper untangling Daniel Vetter
2020-05-11 9:35 ` [PATCH 1/9] drm/msm: Don't call dma_buf_vunmap without _vmap Daniel Vetter
2020-05-11 15:24 ` Rob Clark
2020-05-11 15:28 ` Daniel Vetter
2020-05-11 20:36 ` Rob Clark
2020-05-14 20:11 ` [PATCH] " Daniel Vetter
2020-05-28 8:29 ` Daniel Vetter
2020-05-31 16:02 ` Rob Clark
2020-06-03 12:46 ` Daniel Vetter
2020-05-11 9:35 ` [PATCH 2/9] drm/gem: WARN if drm_gem_get_pages is called on a private obj Daniel Vetter
2020-05-14 7:45 ` Thomas Zimmermann
2020-05-11 9:35 ` [PATCH 3/9] drm/doc: Some polish for shmem helpers Daniel Vetter
2020-05-11 11:12 ` Thomas Zimmermann
2020-05-14 20:05 ` Daniel Vetter
2020-05-15 6:26 ` Thomas Zimmermann
2020-05-11 9:35 ` [PATCH 4/9] drm/virtio: Call the right " Daniel Vetter
2020-05-14 7:46 ` Thomas Zimmermann
2020-05-11 9:35 ` [PATCH 5/9] drm/udl: Don't call get/put_pages on imported dma-buf Daniel Vetter
2020-05-11 11:23 ` Thomas Zimmermann
2020-05-11 11:37 ` Daniel Vetter
2020-05-11 12:04 ` Thomas Zimmermann
2020-05-14 7:25 ` Thomas Zimmermann
2020-05-14 12:47 ` Daniel Vetter
2020-06-03 12:57 ` Daniel Vetter
2020-05-11 9:35 ` [PATCH 6/9] drm/shmem-helpers: Don't call get/put_pages on imported dma-buf in vmap Daniel Vetter
2020-05-14 7:16 ` Thomas Zimmermann
2020-05-14 12:49 ` Daniel Vetter
2020-05-14 20:22 ` [PATCH] " Daniel Vetter
2020-05-11 9:35 ` [PATCH 7/9] drm/shmem-helpers: Redirect mmap for imported dma-buf Daniel Vetter
2020-05-14 7:23 ` Thomas Zimmermann
2020-05-14 12:47 ` Daniel Vetter
2020-05-27 18:32 ` Thomas Zimmermann
2020-05-27 19:34 ` Daniel Vetter
2020-05-28 12:53 ` Thomas Zimmermann
2020-05-11 9:35 ` [PATCH 8/9] drm/shmem-helpers: Ensure get_pages is not called on " Daniel Vetter
2020-05-14 7:30 ` Thomas Zimmermann
2020-06-03 13:12 ` Daniel Vetter
2020-06-08 14:40 ` Thomas Zimmermann
2020-06-08 15:04 ` Daniel Vetter
2020-05-11 9:35 ` [PATCH 9/9] drm/shmem-helpers: Simplify dma-buf importing Daniel Vetter
2020-05-14 7:44 ` Thomas Zimmermann
2020-05-14 12:55 ` Daniel Vetter
2020-05-14 15:26 ` Thomas Zimmermann
2020-05-20 18:02 ` [PATCH] " Daniel Vetter
2020-05-29 13:34 ` Boris Brezillon
2020-05-29 13:35 ` Boris Brezillon
2020-05-29 13:49 ` Boris Brezillon [this message]
2020-05-29 14:05 ` Daniel Vetter
2020-05-29 14:36 ` Boris Brezillon
2020-06-15 8:23 ` [PATCH 9/9] " Thomas Zimmermann
2020-05-29 13:52 ` [PATCH 0/9] shmem helper untangling Boris Brezillon
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