00514e8593
Allow the planes to use the PRG/PRE units as linear prefetchers when possible. This improves DRAM efficiency a bit and reduces the chance for display underflow when the memory subsystem is under load. This does not yet support scanning out tiled buffers directly, as this needs more work, but it already wires up the basic interaction between imx-drm, the IPUv3 driver and the PRG and PRE drivers. Signed-off-by: Lucas Stach <l.stach@pengutronix.de> Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
46 lines
1.1 KiB
C
46 lines
1.1 KiB
C
#ifndef _IMX_DRM_H_
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#define _IMX_DRM_H_
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struct device_node;
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struct drm_crtc;
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struct drm_connector;
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struct drm_device;
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struct drm_display_mode;
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struct drm_encoder;
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struct drm_fbdev_cma;
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struct drm_framebuffer;
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struct drm_plane;
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struct imx_drm_crtc;
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struct platform_device;
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struct imx_crtc_state {
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struct drm_crtc_state base;
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u32 bus_format;
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u32 bus_flags;
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int di_hsync_pin;
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int di_vsync_pin;
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};
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static inline struct imx_crtc_state *to_imx_crtc_state(struct drm_crtc_state *s)
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{
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return container_of(s, struct imx_crtc_state, base);
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}
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int imx_drm_init_drm(struct platform_device *pdev,
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int preferred_bpp);
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int imx_drm_exit_drm(void);
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void imx_drm_mode_config_init(struct drm_device *drm);
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struct drm_gem_cma_object *imx_drm_fb_get_obj(struct drm_framebuffer *fb);
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int imx_drm_encoder_parse_of(struct drm_device *drm,
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struct drm_encoder *encoder, struct device_node *np);
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void imx_drm_connector_destroy(struct drm_connector *connector);
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void imx_drm_encoder_destroy(struct drm_encoder *encoder);
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int ipu_planes_assign_pre(struct drm_device *dev,
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struct drm_atomic_state *state);
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#endif /* _IMX_DRM_H_ */
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