text: /*
   * (C) COPYRIGHT 2016 ARM Limited. All rights reserved.
   * Author: Liviu Dudau <Liviu.Dudau@arm.com>
   *
   * This program is free software and is provided to you under the terms of the
   * GNU General Public License version 2 as published by the Free Software
   * Foundation, and any use by you of this program is subject to the terms
   * of such GNU licence.
   *
   * ARM Mali DP500/DP550/DP650 KMS/DRM driver structures
   */
  
  #ifndef __MALIDP_DRV_H__
  #define __MALIDP_DRV_H__
  
  #include <drm/drm_writeback.h>
  #include <drm/drm_encoder.h>
  #include <linux/mutex.h>
  #include <linux/wait.h>
  #include <linux/spinlock.h>
  #include <drm/drmP.h>
  #include "malidp_hw.h"
  
  #define MALIDP_CONFIG_VALID_INIT	0
  #define MALIDP_CONFIG_VALID_DONE	1
  #define MALIDP_CONFIG_START		0xd0
  
  struct malidp_error_stats {
  	s32 num_errors;
  	u32 last_error_status;
  	s64 last_error_vblank;
  };
  
  struct malidp_drm {
  	struct malidp_hw_device *dev;
  	struct drm_crtc crtc;
  	struct drm_writeback_connector mw_connector;
  	wait_queue_head_t wq;
  	struct drm_pending_vblank_event *event;
  	atomic_t config_valid;
  	u32 core_id;
  #ifdef CONFIG_DEBUG_FS
  	struct malidp_error_stats de_errors;
  	struct malidp_error_stats se_errors;
  	/* Protects errors stats */
  	spinlock_t errors_lock;
  #endif
  };
  
  #define crtc_to_malidp_device(x) container_of(x, struct malidp_drm, crtc)
  
  struct malidp_plane {
  	struct drm_plane base;
  	struct malidp_hw_device *hwdev;
  	const struct malidp_layer *layer;
  };
  
  enum mmu_prefetch_mode {
  	MALIDP_PREFETCH_MODE_NONE,
  	MALIDP_PREFETCH_MODE_PARTIAL,
  	MALIDP_PREFETCH_MODE_FULL,
  };
  
  struct malidp_plane_state {
  	struct drm_plane_state base;
  
  	/* size of the required rotation memory if plane is rotated */
  	u32 rotmem_size;
  	/* internal format ID */
  	u8 format;
  	u8 n_planes;
  	enum mmu_prefetch_mode mmu_prefetch_mode;
  	u32 mmu_prefetch_pgsize;
  };
  
  #define to_malidp_plane(x) container_of(x, struct malidp_plane, base)
  #define to_malidp_plane_state(x) container_of(x, struct malidp_plane_state, base)
  
  struct malidp_crtc_state {
  	struct drm_crtc_state base;
  	u32 gamma_coeffs[MALIDP_COEFFTAB_NUM_COEFFS];
  	u32 coloradj_coeffs[MALIDP_COLORADJ_NUM_COEFFS];
  	struct malidp_se_config scaler_config;
  	/* Bitfield of all the planes that have requested a scaled output. */
  	u8 scaled_planes_mask;
  };
  
  #define to_malidp_crtc_state(x) container_of(x, struct malidp_crtc_state, base)
  
  int malidp_de_planes_init(struct drm_device *drm);
  int malidp_crtc_init(struct drm_device *drm);
  
  #ifdef CONFIG_DEBUG_FS
  void malidp_error(struct malidp_drm *malidp,
  		  struct malidp_error_stats *error_stats, u32 status,
  		  u64 vblank);
  #endif
  
  /* often used combination of rotational bits */
  #define MALIDP_ROTATED_MASK	(DRM_MODE_ROTATE_90 | DRM_MODE_ROTATE_270)
  
  #endif  /* __MALIDP_DRV_H__ */
  