diff options
| author | Philip Yang <Philip.Yang@amd.com> | 2023-08-21 16:02:01 -0400 |
|---|---|---|
| committer | Christian König <christian.koenig@amd.com> | 2024-02-13 16:36:04 +0100 |
| commit | b671cd3d456315f63171a670769356a196cf7fd0 (patch) | |
| tree | cef3120600d427ad4fc3a88b03b8888e0863b671 | |
| parent | 2c80a2b715df75881359d07dbaacff8ad411f40e (diff) | |
| download | linux-integrator-b671cd3d456315f63171a670769356a196cf7fd0.tar.gz | |
drm/prime: Support page array >= 4GB
Without unsigned long typecast, the size is passed in as zero if page
array size >= 4GB, nr_pages >= 0x100000, then sg list converted will
have the first and the last chunk lost.
Signed-off-by: Philip Yang <Philip.Yang@amd.com>
Acked-by: Felix Kuehling <Felix.Kuehling@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
CC: stable@vger.kernel.org
Signed-off-by: Christian König <christian.koenig@amd.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230821200201.24685-1-Philip.Yang@amd.com
| -rw-r--r-- | drivers/gpu/drm/drm_prime.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/gpu/drm/drm_prime.c b/drivers/gpu/drm/drm_prime.c index 834a5e28abbe59..7352bde299d547 100644 --- a/drivers/gpu/drm/drm_prime.c +++ b/drivers/gpu/drm/drm_prime.c @@ -820,7 +820,7 @@ struct sg_table *drm_prime_pages_to_sg(struct drm_device *dev, if (max_segment == 0) max_segment = UINT_MAX; err = sg_alloc_table_from_pages_segment(sg, pages, nr_pages, 0, - nr_pages << PAGE_SHIFT, + (unsigned long)nr_pages << PAGE_SHIFT, max_segment, GFP_KERNEL); if (err) { kfree(sg); |