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| author | Dave Airlie <airlied@redhat.com> | 2010-07-07 18:37:35 +1000 |
|---|---|---|
| committer | Dave Airlie <airlied@redhat.com> | 2010-07-07 18:37:35 +1000 |
| commit | db8cc27b804f89e8fd5f9d5385161956a777c471 (patch) | |
| tree | 4d84e12dbf9b4bd75fa6150f4aedf54a41d722db /drivers/gpu/drm/drm_gem.c | |
| parent | 6dbe7465713f0e45f0e867105ca944978d57346e (diff) | |
| parent | 05269a3a5a78bb074413de495105d7a2686c4529 (diff) | |
Merge branch 'drm-platform' into drm-testing
* drm-platform:
drm: Make sure the DRM offset matches the CPU
drm: Add __arm defines to DRM
drm: Add support for platform devices to register as DRM devices
drm: Remove drm_resource wrappers
Diffstat (limited to 'drivers/gpu/drm/drm_gem.c')
| -rw-r--r-- | drivers/gpu/drm/drm_gem.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/drivers/gpu/drm/drm_gem.c b/drivers/gpu/drm/drm_gem.c index 33dad3fa6043..8601b72b6f26 100644 --- a/drivers/gpu/drm/drm_gem.c +++ b/drivers/gpu/drm/drm_gem.c @@ -68,8 +68,18 @@ * 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 /** * Initialize the GEM device fields |