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drm: arcpgu: Fix mmap() callback 

Now that ARC properly supports DMA mmap() we can use the standard
CMA helper to map dumb buffers. This makes ARC PGU works with
standard DRM consumer applications like, for example, mpv/mplayer
via DRM. While at it, use the DEFINE_DRM_GEM_CMA_FOPS() helper.

This fixes the use of dumb buffers.

Signed-off-by: Jose Abreu <joabreu@synopsys.com>
Fixes: 0c4250e7b1 ("drm: Add support of ARC PGU display controller")
Cc: Carlos Palminha <palminha@synopsys.com>
Cc: Alexey Brodkin <abrodkin@synopsys.com>
Cc: Daniel Vetter <daniel.vetter@intel.com>
Cc: Dave Airlie <airlied@gmail.com>
Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com>
This commit is contained in:
Jose Abreu 2017-07-17 13:08:25 +01:00 committed by Alexey Brodkin
parent 429ff616a5
commit a8f8fb2057
1 changed files with 1 additions and 23 deletions
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24
drivers/gpu/drm/arc/arcpgu_drv.c
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@ -48,29 +48,7 @@ static void arcpgu_setup_mode_config(struct drm_device *drm)
drm->mode_config.funcs = &arcpgu_drm_modecfg_funcs; drm->mode_config.funcs = &arcpgu_drm_modecfg_funcs;
} }
static int arcpgu_gem_mmap(struct file *filp, struct vm_area_struct *vma) DEFINE_DRM_GEM_CMA_FOPS(arcpgu_drm_ops);
{
int ret;
ret = drm_gem_mmap(filp, vma);
if (ret)
return ret;
vma->vm_page_prot = pgprot_noncached(vm_get_page_prot(vma->vm_flags));
return 0;
}
static const struct file_operations arcpgu_drm_ops = {
.owner = THIS_MODULE,
.open = drm_open,
.release = drm_release,
.unlocked_ioctl = drm_ioctl,
.compat_ioctl = drm_compat_ioctl,
.poll = drm_poll,
.read = drm_read,
.llseek = no_llseek,
.mmap = arcpgu_gem_mmap,
};
static void arcpgu_lastclose(struct drm_device *drm) static void arcpgu_lastclose(struct drm_device *drm)
{ {