/* Hisilicon Hibmc SoC drm driver
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*
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* Based on the bochs drm driver.
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*
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* Copyright (c) 2016 Huawei Limited.
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*
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* Author:
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* Rongrong Zou <zourongrong@huawei.com>
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* Rongrong Zou <zourongrong@gmail.com>
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* Jianhua Li <lijianhua@huawei.com>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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*/
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#ifndef HIBMC_DRM_DRV_H
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#define HIBMC_DRM_DRV_H
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#include <drm/drmP.h>
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#include <drm/drm_atomic.h>
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#include <drm/drm_fb_helper.h>
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#include <drm/drm_gem.h>
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#include <drm/ttm/ttm_bo_driver.h>
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struct hibmc_framebuffer {
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struct drm_framebuffer fb;
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struct drm_gem_object *obj;
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};
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struct hibmc_fbdev {
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struct drm_fb_helper helper;
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struct hibmc_framebuffer *fb;
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int size;
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};
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struct hibmc_drm_private {
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/* hw */
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void __iomem *mmio;
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void __iomem *fb_map;
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unsigned long fb_base;
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unsigned long fb_size;
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bool msi_enabled;
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/* drm */
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struct drm_device *dev;
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bool mode_config_initialized;
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struct drm_atomic_state *suspend_state;
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/* ttm */
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struct drm_global_reference mem_global_ref;
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struct ttm_bo_global_ref bo_global_ref;
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struct ttm_bo_device bdev;
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bool initialized;
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/* fbdev */
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struct hibmc_fbdev *fbdev;
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bool mm_inited;
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};
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#define to_hibmc_framebuffer(x) container_of(x, struct hibmc_framebuffer, fb)
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struct hibmc_bo {
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struct ttm_buffer_object bo;
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struct ttm_placement placement;
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struct ttm_bo_kmap_obj kmap;
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struct drm_gem_object gem;
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struct ttm_place placements[3];
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int pin_count;
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};
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static inline struct hibmc_bo *hibmc_bo(struct ttm_buffer_object *bo)
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{
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return container_of(bo, struct hibmc_bo, bo);
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}
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static inline struct hibmc_bo *gem_to_hibmc_bo(struct drm_gem_object *gem)
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{
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return container_of(gem, struct hibmc_bo, gem);
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}
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void hibmc_set_power_mode(struct hibmc_drm_private *priv,
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unsigned int power_mode);
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void hibmc_set_current_gate(struct hibmc_drm_private *priv,
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unsigned int gate);
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int hibmc_de_init(struct hibmc_drm_private *priv);
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int hibmc_vdac_init(struct hibmc_drm_private *priv);
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int hibmc_fbdev_init(struct hibmc_drm_private *priv);
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void hibmc_fbdev_fini(struct hibmc_drm_private *priv);
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int hibmc_gem_create(struct drm_device *dev, u32 size, bool iskernel,
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struct drm_gem_object **obj);
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struct hibmc_framebuffer *
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hibmc_framebuffer_init(struct drm_device *dev,
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const struct drm_mode_fb_cmd2 *mode_cmd,
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struct drm_gem_object *obj);
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int hibmc_mm_init(struct hibmc_drm_private *hibmc);
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void hibmc_mm_fini(struct hibmc_drm_private *hibmc);
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int hibmc_bo_pin(struct hibmc_bo *bo, u32 pl_flag, u64 *gpu_addr);
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int hibmc_bo_unpin(struct hibmc_bo *bo);
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void hibmc_gem_free_object(struct drm_gem_object *obj);
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int hibmc_dumb_create(struct drm_file *file, struct drm_device *dev,
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struct drm_mode_create_dumb *args);
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int hibmc_dumb_mmap_offset(struct drm_file *file, struct drm_device *dev,
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u32 handle, u64 *offset);
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int hibmc_mmap(struct file *filp, struct vm_area_struct *vma);
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extern const struct drm_mode_config_funcs hibmc_mode_funcs;
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#endif
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