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https://github.com/edk2-porting/linux-next.git
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81c248f75a
Currently the driver uses a custom function to wait for flip to complete after an atomic commit. It was needed before because of two problems: - there is no hardware vblank counter, so the original helper would have a race condition with the vblank interrupt, - the driver didn't support unreferencing cursor framebuffers asynchronously to the commit, which was what the helper expected. Since both problems have been solved by previous patches, we can now make the driver use the generic helper and remove custom waiting code. Signed-off-by: Tomasz Figa <tfiga@chromium.org>
79 lines
2.2 KiB
C
79 lines
2.2 KiB
C
/*
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* Copyright (C) Fuzhou Rockchip Electronics Co.Ltd
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* Author:Mark Yao <mark.yao@rock-chips.com>
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*
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* based on exynos_drm_drv.h
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*
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* This software is licensed under the terms of the GNU General Public
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* License version 2, as published by the Free Software Foundation, and
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* may be copied, distributed, and modified under those terms.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*/
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#ifndef _ROCKCHIP_DRM_DRV_H
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#define _ROCKCHIP_DRM_DRV_H
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#include <drm/drm_fb_helper.h>
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#include <drm/drm_atomic_helper.h>
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#include <drm/drm_gem.h>
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#include <linux/module.h>
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#include <linux/component.h>
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#define ROCKCHIP_MAX_FB_BUFFER 3
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#define ROCKCHIP_MAX_CONNECTOR 2
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#define ROCKCHIP_MAX_CRTC 2
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struct drm_device;
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struct drm_connector;
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/*
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* Rockchip drm private crtc funcs.
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* @enable_vblank: enable crtc vblank irq.
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* @disable_vblank: disable crtc vblank irq.
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*/
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struct rockchip_crtc_funcs {
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int (*enable_vblank)(struct drm_crtc *crtc);
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void (*disable_vblank)(struct drm_crtc *crtc);
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};
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struct rockchip_crtc_state {
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struct drm_crtc_state base;
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int output_type;
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int output_mode;
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};
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#define to_rockchip_crtc_state(s) \
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container_of(s, struct rockchip_crtc_state, base)
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/*
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* Rockchip drm private structure.
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*
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* @crtc: array of enabled CRTCs, used to map from "pipe" to drm_crtc.
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* @num_pipe: number of pipes for this device.
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*/
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struct rockchip_drm_private {
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struct drm_fb_helper fbdev_helper;
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struct drm_gem_object *fbdev_bo;
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const struct rockchip_crtc_funcs *crtc_funcs[ROCKCHIP_MAX_CRTC];
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struct drm_atomic_state *state;
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struct list_head psr_list;
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spinlock_t psr_list_lock;
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};
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int rockchip_register_crtc_funcs(struct drm_crtc *crtc,
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const struct rockchip_crtc_funcs *crtc_funcs);
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void rockchip_unregister_crtc_funcs(struct drm_crtc *crtc);
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int rockchip_drm_dma_attach_device(struct drm_device *drm_dev,
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struct device *dev);
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void rockchip_drm_dma_detach_device(struct drm_device *drm_dev,
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struct device *dev);
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int rockchip_drm_wait_line_flag(struct drm_crtc *crtc, unsigned int line_num,
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unsigned int mstimeout);
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#endif /* _ROCKCHIP_DRM_DRV_H_ */
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