diff options
author | Thomas Zimmermann | 2019-02-07 09:59:31 +0100 |
---|---|---|
committer | Alex Deucher | 2019-03-19 21:03:53 +0100 |
commit | bf141a88b329d12c9aaea4f7e7a8fdbd2dfe987d (patch) | |
tree | 2046b3bd8faca73da578d2ee8a9ef0318e254af3 /drivers/gpu/drm/drm_gem.c | |
parent | drm/ttm: Quick-test mmap offset in ttm_bo_mmap() (diff) | |
download | kernel-qcow2-linux-bf141a88b329d12c9aaea4f7e7a8fdbd2dfe987d.tar.gz kernel-qcow2-linux-bf141a88b329d12c9aaea4f7e7a8fdbd2dfe987d.tar.xz kernel-qcow2-linux-bf141a88b329d12c9aaea4f7e7a8fdbd2dfe987d.zip |
drm: Use the same mmap-range offset and size for GEM and TTM
GEM defines DRM_FILE_PAGE_OFFSET_{START,SIZE} constants for the
mmap-able range of addresses. TTM can use them as well.
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Christian König <christian.koenig@amd.com>
Acked-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/drm_gem.c')
-rw-r--r-- | drivers/gpu/drm/drm_gem.c | 17 |
1 files changed, 0 insertions, 17 deletions
diff --git a/drivers/gpu/drm/drm_gem.c b/drivers/gpu/drm/drm_gem.c index d0b9f6a9953f..ea988509ae8f 100644 --- a/drivers/gpu/drm/drm_gem.c +++ b/drivers/gpu/drm/drm_gem.c @@ -72,23 +72,6 @@ * up at a later date, and as our interface with shmfs for memory allocation. */ -/* - * We make up offsets for buffer objects so we can recognize them at - * mmap time. - */ - -/* pgoff in mmap is an unsigned long, so we need to make sure that - * the faked up offset will fit - */ - -#if BITS_PER_LONG == 64 -#define DRM_FILE_PAGE_OFFSET_START ((0xFFFFFFFFUL >> PAGE_SHIFT) + 1) -#define DRM_FILE_PAGE_OFFSET_SIZE ((0xFFFFFFFFUL >> PAGE_SHIFT) * 16) -#else -#define DRM_FILE_PAGE_OFFSET_START ((0xFFFFFFFUL >> PAGE_SHIFT) + 1) -#define DRM_FILE_PAGE_OFFSET_SIZE ((0xFFFFFFFUL >> PAGE_SHIFT) * 16) -#endif - /** * drm_gem_init - Initialize the GEM device fields * @dev: drm_devic structure to initialize |