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drm/msm: add helper to allocate stolen fb

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We'll later want to re-use this for state-readback when bootloader
enables display, so that we can create an fb for the initial
plane->state->fb.

Signed-off-by: Rob Clark <robdclark@gmail.com>
This commit is contained in:
Rob Clark
2017-07-11 10:40:13 -04:00
parent 38958bab82
commit 466e5606cc
3 changed files with 50 additions and 28 deletions
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2
drivers/gpu/drm/msm/msm_drv.h
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@@ -256,6 +256,8 @@ struct drm_framebuffer *msm_framebuffer_init(struct drm_device *dev,
const struct drm_mode_fb_cmd2 *mode_cmd, struct drm_gem_object **bos);
struct drm_framebuffer *msm_framebuffer_create(struct drm_device *dev,
struct drm_file *file, const struct drm_mode_fb_cmd2 *mode_cmd);
struct drm_framebuffer * msm_alloc_stolen_fb(struct drm_device *dev,
int w, int h, int p, uint32_t format);
struct drm_fb_helper *msm_fbdev_init(struct drm_device *dev);
void msm_fbdev_free(struct drm_device *dev);