diff options
Diffstat (limited to 'drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_drv.h')
| -rw-r--r-- | drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_drv.h | 114 |
1 files changed, 114 insertions, 0 deletions
diff --git a/drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_drv.h b/drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_drv.h new file mode 100644 index 000000000000..e195521eb41e --- /dev/null +++ b/drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_drv.h @@ -0,0 +1,114 @@ +/* Hisilicon Hibmc SoC drm driver + * + * Based on the bochs drm driver. + * + * Copyright (c) 2016 Huawei Limited. + * + * Author: + * Rongrong Zou <zourongrong@huawei.com> + * Rongrong Zou <zourongrong@gmail.com> + * Jianhua Li <lijianhua@huawei.com> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + */ + +#ifndef HIBMC_DRM_DRV_H +#define HIBMC_DRM_DRV_H + +#include <drm/drmP.h> +#include <drm/drm_atomic.h> +#include <drm/drm_fb_helper.h> +#include <drm/drm_gem.h> +#include <drm/ttm/ttm_bo_driver.h> + +struct hibmc_framebuffer { + struct drm_framebuffer fb; + struct drm_gem_object *obj; +}; + +struct hibmc_fbdev { + struct drm_fb_helper helper; + struct hibmc_framebuffer *fb; + int size; +}; + +struct hibmc_drm_private { + /* hw */ + void __iomem *mmio; + void __iomem *fb_map; + unsigned long fb_base; + unsigned long fb_size; + bool msi_enabled; + + /* drm */ + struct drm_device *dev; + bool mode_config_initialized; + struct drm_atomic_state *suspend_state; + + /* ttm */ + struct drm_global_reference mem_global_ref; + struct ttm_bo_global_ref bo_global_ref; + struct ttm_bo_device bdev; + bool initialized; + + /* fbdev */ + struct hibmc_fbdev *fbdev; + bool mm_inited; +}; + +#define to_hibmc_framebuffer(x) container_of(x, struct hibmc_framebuffer, fb) + +struct hibmc_bo { + struct ttm_buffer_object bo; + struct ttm_placement placement; + struct ttm_bo_kmap_obj kmap; + struct drm_gem_object gem; + struct ttm_place placements[3]; + int pin_count; +}; + +static inline struct hibmc_bo *hibmc_bo(struct ttm_buffer_object *bo) +{ + return container_of(bo, struct hibmc_bo, bo); +} + +static inline struct hibmc_bo *gem_to_hibmc_bo(struct drm_gem_object *gem) +{ + return container_of(gem, struct hibmc_bo, gem); +} + +void hibmc_set_power_mode(struct hibmc_drm_private *priv, + unsigned int power_mode); +void hibmc_set_current_gate(struct hibmc_drm_private *priv, + unsigned int gate); + +int hibmc_de_init(struct hibmc_drm_private *priv); +int hibmc_vdac_init(struct hibmc_drm_private *priv); +int hibmc_fbdev_init(struct hibmc_drm_private *priv); +void hibmc_fbdev_fini(struct hibmc_drm_private *priv); + +int hibmc_gem_create(struct drm_device *dev, u32 size, bool iskernel, + struct drm_gem_object **obj); +struct hibmc_framebuffer * +hibmc_framebuffer_init(struct drm_device *dev, + const struct drm_mode_fb_cmd2 *mode_cmd, + struct drm_gem_object *obj); + +int hibmc_mm_init(struct hibmc_drm_private *hibmc); +void hibmc_mm_fini(struct hibmc_drm_private *hibmc); +int hibmc_bo_pin(struct hibmc_bo *bo, u32 pl_flag, u64 *gpu_addr); +int hibmc_bo_unpin(struct hibmc_bo *bo); +void hibmc_gem_free_object(struct drm_gem_object *obj); +int hibmc_dumb_create(struct drm_file *file, struct drm_device *dev, + struct drm_mode_create_dumb *args); +int hibmc_dumb_mmap_offset(struct drm_file *file, struct drm_device *dev, + u32 handle, u64 *offset); +int hibmc_mmap(struct file *filp, struct vm_area_struct *vma); + +extern const struct drm_mode_config_funcs hibmc_mode_funcs; + +#endif |