forked from Minki/linux
fc2e013f78
Every CRTC drivers in Exynos DRM implements the code which checks whether IOMMU is supported or not, and if supported enable it. Making new helper for it generalize each CRTC drivers. Signed-off-by: Hyungwon Hwang <human.hwang@samsung.com> Signed-off-by: Inki Dae <inki.dae@samsung.com>
317 lines
11 KiB
C
317 lines
11 KiB
C
/* exynos_drm_drv.h
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*
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* Copyright (c) 2011 Samsung Electronics Co., Ltd.
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* Authors:
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* Inki Dae <inki.dae@samsung.com>
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* Joonyoung Shim <jy0922.shim@samsung.com>
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* Seung-Woo Kim <sw0312.kim@samsung.com>
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the
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* Free Software Foundation; either version 2 of the License, or (at your
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* option) any later version.
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*/
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#ifndef _EXYNOS_DRM_DRV_H_
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#define _EXYNOS_DRM_DRV_H_
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#include <drm/drmP.h>
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#include <linux/module.h>
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#define MAX_CRTC 3
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#define MAX_PLANE 5
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#define MAX_FB_BUFFER 4
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#define to_exynos_crtc(x) container_of(x, struct exynos_drm_crtc, base)
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#define to_exynos_plane(x) container_of(x, struct exynos_drm_plane, base)
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/* this enumerates display type. */
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enum exynos_drm_output_type {
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EXYNOS_DISPLAY_TYPE_NONE,
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/* RGB or CPU Interface. */
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EXYNOS_DISPLAY_TYPE_LCD,
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/* HDMI Interface. */
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EXYNOS_DISPLAY_TYPE_HDMI,
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/* Virtual Display Interface. */
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EXYNOS_DISPLAY_TYPE_VIDI,
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};
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/*
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* Exynos drm common overlay structure.
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*
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* @base: plane object
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* @src_x: offset x on a framebuffer to be displayed.
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* - the unit is screen coordinates.
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* @src_y: offset y on a framebuffer to be displayed.
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* - the unit is screen coordinates.
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* @src_width: width of a partial image to be displayed from framebuffer.
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* @src_height: height of a partial image to be displayed from framebuffer.
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* @fb_width: width of a framebuffer.
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* @fb_height: height of a framebuffer.
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* @crtc_x: offset x on hardware screen.
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* @crtc_y: offset y on hardware screen.
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* @crtc_width: window width to be displayed (hardware screen).
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* @crtc_height: window height to be displayed (hardware screen).
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* @mode_width: width of screen mode.
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* @mode_height: height of screen mode.
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* @h_ratio: horizontal scaling ratio, 16.16 fixed point
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* @v_ratio: vertical scaling ratio, 16.16 fixed point
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* @refresh: refresh rate.
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* @scan_flag: interlace or progressive way.
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* (it could be DRM_MODE_FLAG_*)
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* @bpp: pixel size.(in bit)
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* @pixel_format: fourcc pixel format of this overlay
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* @dma_addr: array of bus(accessed by dma) address to the memory region
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* allocated for a overlay.
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* @zpos: order of overlay layer(z position).
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*
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* this structure is common to exynos SoC and its contents would be copied
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* to hardware specific overlay info.
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*/
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struct exynos_drm_plane {
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struct drm_plane base;
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unsigned int src_x;
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unsigned int src_y;
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unsigned int src_width;
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unsigned int src_height;
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unsigned int fb_width;
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unsigned int fb_height;
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unsigned int crtc_x;
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unsigned int crtc_y;
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unsigned int crtc_width;
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unsigned int crtc_height;
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unsigned int mode_width;
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unsigned int mode_height;
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unsigned int h_ratio;
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unsigned int v_ratio;
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unsigned int refresh;
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unsigned int scan_flag;
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unsigned int bpp;
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unsigned int pitch;
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uint32_t pixel_format;
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dma_addr_t dma_addr[MAX_FB_BUFFER];
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unsigned int zpos;
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};
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/*
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* Exynos DRM Display Structure.
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* - this structure is common to analog tv, digital tv and lcd panel.
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*
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* @create_connector: initialize and register a new connector
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* @remove: cleans up the display for removal
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* @mode_fixup: fix mode data comparing to hw specific display mode.
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* @mode_set: convert drm_display_mode to hw specific display mode and
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* would be called by encoder->mode_set().
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* @check_mode: check if mode is valid or not.
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* @dpms: display device on or off.
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* @commit: apply changes to hw
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*/
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struct exynos_drm_display;
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struct exynos_drm_display_ops {
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int (*create_connector)(struct exynos_drm_display *display,
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struct drm_encoder *encoder);
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void (*remove)(struct exynos_drm_display *display);
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void (*mode_fixup)(struct exynos_drm_display *display,
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struct drm_connector *connector,
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const struct drm_display_mode *mode,
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struct drm_display_mode *adjusted_mode);
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void (*mode_set)(struct exynos_drm_display *display,
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struct drm_display_mode *mode);
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int (*check_mode)(struct exynos_drm_display *display,
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struct drm_display_mode *mode);
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void (*dpms)(struct exynos_drm_display *display, int mode);
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void (*commit)(struct exynos_drm_display *display);
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};
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/*
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* Exynos drm display structure, maps 1:1 with an encoder/connector
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*
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* @list: the list entry for this manager
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* @type: one of EXYNOS_DISPLAY_TYPE_LCD and HDMI.
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* @encoder: encoder object this display maps to
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* @connector: connector object this display maps to
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* @ops: pointer to callbacks for exynos drm specific functionality
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* @ctx: A pointer to the display's implementation specific context
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*/
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struct exynos_drm_display {
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struct list_head list;
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enum exynos_drm_output_type type;
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struct drm_encoder *encoder;
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struct drm_connector *connector;
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struct exynos_drm_display_ops *ops;
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};
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/*
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* Exynos drm crtc ops
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*
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* @enable: enable the device
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* @disable: disable the device
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* @mode_fixup: fix mode data before applying it
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* @commit: set current hw specific display mode to hw.
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* @enable_vblank: specific driver callback for enabling vblank interrupt.
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* @disable_vblank: specific driver callback for disabling vblank interrupt.
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* @wait_for_vblank: wait for vblank interrupt to make sure that
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* hardware overlay is updated.
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* @win_commit: apply hardware specific overlay data to registers.
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* @win_disable: disable hardware specific overlay.
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* @te_handler: trigger to transfer video image at the tearing effect
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* synchronization signal if there is a page flip request.
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* @clock_enable: optional function enabling/disabling display domain clock,
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* called from exynos-dp driver before powering up (with
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* 'enable' argument as true) and after powering down (with
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* 'enable' as false).
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*/
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struct exynos_drm_crtc;
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struct exynos_drm_crtc_ops {
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void (*enable)(struct exynos_drm_crtc *crtc);
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void (*disable)(struct exynos_drm_crtc *crtc);
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bool (*mode_fixup)(struct exynos_drm_crtc *crtc,
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const struct drm_display_mode *mode,
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struct drm_display_mode *adjusted_mode);
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void (*commit)(struct exynos_drm_crtc *crtc);
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int (*enable_vblank)(struct exynos_drm_crtc *crtc);
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void (*disable_vblank)(struct exynos_drm_crtc *crtc);
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void (*wait_for_vblank)(struct exynos_drm_crtc *crtc);
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void (*win_commit)(struct exynos_drm_crtc *crtc, unsigned int zpos);
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void (*win_disable)(struct exynos_drm_crtc *crtc, unsigned int zpos);
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void (*te_handler)(struct exynos_drm_crtc *crtc);
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void (*clock_enable)(struct exynos_drm_crtc *crtc, bool enable);
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void (*clear_channels)(struct exynos_drm_crtc *crtc);
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};
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/*
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* Exynos specific crtc structure.
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*
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* @base: crtc object.
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* @type: one of EXYNOS_DISPLAY_TYPE_LCD and HDMI.
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* @pipe: a crtc index created at load() with a new crtc object creation
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* and the crtc object would be set to private->crtc array
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* to get a crtc object corresponding to this pipe from private->crtc
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* array when irq interrupt occurred. the reason of using this pipe is that
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* drm framework doesn't support multiple irq yet.
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* we can refer to the crtc to current hardware interrupt occurred through
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* this pipe value.
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* @enabled: if the crtc is enabled or not
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* @event: vblank event that is currently queued for flip
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* @ops: pointer to callbacks for exynos drm specific functionality
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* @ctx: A pointer to the crtc's implementation specific context
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*/
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struct exynos_drm_crtc {
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struct drm_crtc base;
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enum exynos_drm_output_type type;
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unsigned int pipe;
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bool enabled;
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wait_queue_head_t pending_flip_queue;
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struct drm_pending_vblank_event *event;
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const struct exynos_drm_crtc_ops *ops;
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void *ctx;
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};
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struct exynos_drm_g2d_private {
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struct device *dev;
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struct list_head inuse_cmdlist;
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struct list_head event_list;
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struct list_head userptr_list;
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};
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struct drm_exynos_file_private {
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struct exynos_drm_g2d_private *g2d_priv;
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struct device *ipp_dev;
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};
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/*
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* Exynos drm private structure.
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*
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* @da_start: start address to device address space.
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* with iommu, device address space starts from this address
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* otherwise default one.
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* @da_space_size: size of device address space.
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* if 0 then default value is used for it.
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* @pipe: the pipe number for this crtc/manager.
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*/
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struct exynos_drm_private {
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struct drm_fb_helper *fb_helper;
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/*
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* created crtc object would be contained at this array and
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* this array is used to be aware of which crtc did it request vblank.
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*/
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struct drm_crtc *crtc[MAX_CRTC];
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struct drm_property *plane_zpos_property;
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unsigned long da_start;
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unsigned long da_space_size;
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unsigned int pipe;
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};
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/*
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* Exynos drm sub driver structure.
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*
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* @list: sub driver has its own list object to register to exynos drm driver.
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* @dev: pointer to device object for subdrv device driver.
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* @drm_dev: pointer to drm_device and this pointer would be set
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* when sub driver calls exynos_drm_subdrv_register().
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* @probe: this callback would be called by exynos drm driver after
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* subdrv is registered to it.
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* @remove: this callback is used to release resources created
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* by probe callback.
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* @open: this would be called with drm device file open.
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* @close: this would be called with drm device file close.
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*/
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struct exynos_drm_subdrv {
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struct list_head list;
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struct device *dev;
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struct drm_device *drm_dev;
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int (*probe)(struct drm_device *drm_dev, struct device *dev);
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void (*remove)(struct drm_device *drm_dev, struct device *dev);
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int (*open)(struct drm_device *drm_dev, struct device *dev,
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struct drm_file *file);
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void (*close)(struct drm_device *drm_dev, struct device *dev,
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struct drm_file *file);
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};
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/* This function would be called by non kms drivers such as g2d and ipp. */
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int exynos_drm_subdrv_register(struct exynos_drm_subdrv *drm_subdrv);
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/* this function removes subdrv list from exynos drm driver */
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int exynos_drm_subdrv_unregister(struct exynos_drm_subdrv *drm_subdrv);
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int exynos_drm_device_subdrv_probe(struct drm_device *dev);
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int exynos_drm_device_subdrv_remove(struct drm_device *dev);
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int exynos_drm_subdrv_open(struct drm_device *dev, struct drm_file *file);
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void exynos_drm_subdrv_close(struct drm_device *dev, struct drm_file *file);
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#ifdef CONFIG_DRM_EXYNOS_DPI
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struct exynos_drm_display * exynos_dpi_probe(struct device *dev);
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int exynos_dpi_remove(struct exynos_drm_display *display);
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#else
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static inline struct exynos_drm_display *
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exynos_dpi_probe(struct device *dev) { return NULL; }
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static inline int exynos_dpi_remove(struct exynos_drm_display *display)
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{
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return 0;
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}
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#endif
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/* This function creates a encoder and a connector, and initializes them. */
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int exynos_drm_create_enc_conn(struct drm_device *dev,
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struct exynos_drm_display *display);
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extern struct platform_driver fimd_driver;
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extern struct platform_driver decon_driver;
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extern struct platform_driver dp_driver;
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extern struct platform_driver dsi_driver;
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extern struct platform_driver mixer_driver;
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extern struct platform_driver hdmi_driver;
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extern struct platform_driver exynos_drm_common_hdmi_driver;
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extern struct platform_driver vidi_driver;
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extern struct platform_driver g2d_driver;
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extern struct platform_driver fimc_driver;
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extern struct platform_driver rotator_driver;
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extern struct platform_driver gsc_driver;
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extern struct platform_driver ipp_driver;
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#endif
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