drm/msm/sde: add inline rotation support to drm plane
Add inline rotation support to drm plane. Inline rotation
reduces ddr usage by redirecting traffic between rotator
output and source pipe to system cache.
CRs-Fixed: 2009714
Change-Id: I9bb39b700d648ee936a1b61eca4bf5cd7b1b8d38
Signed-off-by: Alan Kwong <akwong@codeaurora.org>
diff --git a/drivers/gpu/drm/msm/sde/sde_kms.h b/drivers/gpu/drm/msm/sde/sde_kms.h
index 1acdf00..83edde3 100644
--- a/drivers/gpu/drm/msm/sde/sde_kms.h
+++ b/drivers/gpu/drm/msm/sde/sde_kms.h
@@ -115,6 +115,36 @@
struct dentry *debugfs_file;
};
+/**
+ * struct sde_kms_fbo - framebuffer memory object
+ * @refcount: reference/usage count of this object
+ * @dev: Pointer to containing drm device
+ * @width: width of the framebuffer
+ * @height: height of the framebuffer
+ * @flags: drm framebuffer flags
+ * @modifier: pixel format modifier of the framebuffer
+ * @fmt: Pointer to sde format descriptor
+ * @layout: sde format layout descriptor
+ * @ihandle: framebuffer object ion handle
+ * @dma_buf: framebuffer object dma buffer
+ * @bo: per plane buffer object
+ * @fb_list: llist of fb created from this buffer object
+ */
+struct sde_kms_fbo {
+ atomic_t refcount;
+ struct drm_device *dev;
+ u32 width, height;
+ u32 pixel_format;
+ u32 flags;
+ u64 modifier[4];
+ int nplane;
+ const struct sde_format *fmt;
+ struct sde_hw_fmt_layout layout;
+ struct dma_buf *dma_buf;
+ struct drm_gem_object *bo[4];
+ struct list_head fb_list;
+};
+
struct sde_kms {
struct msm_kms base;
struct drm_device *dev;
@@ -376,4 +406,42 @@
int sde_enable_vblank(struct msm_kms *kms, struct drm_crtc *crtc);
void sde_disable_vblank(struct msm_kms *kms, struct drm_crtc *crtc);
+/**
+ * sde_kms_fbo_create_fb - create framebuffer from given framebuffer object
+ * @dev: Pointer to drm device
+ * @fbo: Pointer to framebuffer object
+ * return: Pointer to drm framebuffer on success; NULL on error
+ */
+struct drm_framebuffer *sde_kms_fbo_create_fb(struct drm_device *dev,
+ struct sde_kms_fbo *fbo);
+
+/**
+ * sde_kms_fbo_alloc - create framebuffer object with given format parameters
+ * @dev: pointer to drm device
+ * @width: width of framebuffer
+ * @height: height of framebuffer
+ * @pixel_format: pixel format of framebuffer
+ * @modifier: pixel format modifier
+ * @flags: DRM_MODE_FB flags
+ * return: Pointer to framebuffer memory object on success; NULL on error
+ */
+struct sde_kms_fbo *sde_kms_fbo_alloc(struct drm_device *dev,
+ u32 width, u32 height, u32 pixel_format,
+ u64 modifiers[4], u32 flags);
+
+/**
+ * sde_kms_fbo_reference - increment reference count of given framebuffer object
+ * @fbo: Pointer to framebuffer memory object
+ * return: 0 on success; error code otherwise
+ */
+int sde_kms_fbo_reference(struct sde_kms_fbo *fbo);
+
+/**
+ * sde_kms_fbo_unreference - decrement reference count of given framebuffer
+ * object
+ * @fbo: Pointer to framebuffer memory object
+ * return: 0 on success; error code otherwise
+ */
+void sde_kms_fbo_unreference(struct sde_kms_fbo *fbo);
+
#endif /* __sde_kms_H__ */