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author | Dave Airlie <airlied@redhat.com> | 2011-02-07 05:16:14 +0300 |
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committer | Dave Airlie <airlied@redhat.com> | 2011-02-07 05:16:14 +0300 |
commit | ff72145badb834e8051719ea66e024784d000cb4 (patch) | |
tree | 39dc5fc512e3e0836713de9defb91ea8b4033aa2 /drivers/gpu/drm/radeon/radeon_fb.c | |
parent | 1f692a14cbfbeb11f9a9c16f25c8ecb8ab50d3d5 (diff) | |
download | linux-ff72145badb834e8051719ea66e024784d000cb4.tar.xz |
drm: dumb scanout create/mmap for intel/radeon (v3)
This is just an idea that might or might not be a good idea,
it basically adds two ioctls to create a dumb and map a dumb buffer
suitable for scanout. The handle can be passed to the KMS ioctls to create
a framebuffer.
It looks to me like it would be useful in the following cases:
a) in development drivers - we can always provide a shadowfb fallback.
b) libkms users - we can clean up libkms a lot and avoid linking
to libdrm_*.
c) plymouth via libkms is a lot easier.
Userspace bits would be just calls + mmaps. We could probably
mark these handles somehow as not being suitable for acceleartion
so as top stop people who are dumber than dumb.
Signed-off-by: Dave Airlie <airlied@redhat.com>
Diffstat (limited to 'drivers/gpu/drm/radeon/radeon_fb.c')
-rw-r--r-- | drivers/gpu/drm/radeon/radeon_fb.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/gpu/drm/radeon/radeon_fb.c b/drivers/gpu/drm/radeon/radeon_fb.c index 66324b5bb5ba..cb968f997ce7 100644 --- a/drivers/gpu/drm/radeon/radeon_fb.c +++ b/drivers/gpu/drm/radeon/radeon_fb.c @@ -64,7 +64,7 @@ static struct fb_ops radeonfb_ops = { }; -static int radeon_align_pitch(struct radeon_device *rdev, int width, int bpp, bool tiled) +int radeon_align_pitch(struct radeon_device *rdev, int width, int bpp, bool tiled) { int aligned = width; int align_large = (ASIC_IS_AVIVO(rdev)) || tiled; |