LXR linux/drivers/gpu/drm/arm/malidp

   1/*
   2 * (C) COPYRIGHT 2016 ARM Limited. All rights reserved.
   3 * Author: Liviu Dudau <Liviu.Dudau@arm.com>
   4 *
   5 * This program is free software and is provided to you under the terms of the
   6 * GNU General Public License version 2 as published by the Free Software
   7 * Foundation, and any use by you of this program is subject to the terms
   8 * of such GNU licence.
   9 *
  10 * ARM Mali DP500/DP550/DP650 KMS/DRM driver structures
  11 */
  12
  13#ifndef __MALIDP_DRV_H__
  14#define __MALIDP_DRV_H__
  15
  16#include <drm/drm_writeback.h>
  17#include <drm/drm_encoder.h>
  18#include <linux/mutex.h>
  19#include <linux/wait.h>
  20#include <linux/spinlock.h>
  21#include <drm/drmP.h>
  22#include "malidp_hw.h"
  23
  24#define MALIDP_CONFIG_VALID_INIT        0
  25#define MALIDP_CONFIG_VALID_DONE        1
  26#define MALIDP_CONFIG_START             0xd0
  27
  28struct malidp_error_stats {
  29        s32 num_errors;
  30        u32 last_error_status;
  31        s64 last_error_vblank;
  32};
  33
  34struct malidp_drm {
  35        struct malidp_hw_device *dev;
  36        struct drm_crtc crtc;
  37        struct drm_writeback_connector mw_connector;
  38        wait_queue_head_t wq;
  39        struct drm_pending_vblank_event *event;
  40        atomic_t config_valid;
  41        u32 core_id;
  42#ifdef CONFIG_DEBUG_FS
  43        struct malidp_error_stats de_errors;
  44        struct malidp_error_stats se_errors;
  45        /* Protects errors stats */
  46        spinlock_t errors_lock;
  47#endif
  48};
  49
  50#define crtc_to_malidp_device(x) container_of(x, struct malidp_drm, crtc)
  51
  52struct malidp_plane {
  53        struct drm_plane base;
  54        struct malidp_hw_device *hwdev;
  55        const struct malidp_layer *layer;
  56};
  57
  58struct malidp_plane_state {
  59        struct drm_plane_state base;
  60
  61        /* size of the required rotation memory if plane is rotated */
  62        u32 rotmem_size;
  63        /* internal format ID */
  64        u8 format;
  65        u8 n_planes;
  66};
  67
  68#define to_malidp_plane(x) container_of(x, struct malidp_plane, base)
  69#define to_malidp_plane_state(x) container_of(x, struct malidp_plane_state, base)
  70
  71struct malidp_crtc_state {
  72        struct drm_crtc_state base;
  73        u32 gamma_coeffs[MALIDP_COEFFTAB_NUM_COEFFS];
  74        u32 coloradj_coeffs[MALIDP_COLORADJ_NUM_COEFFS];
  75        struct malidp_se_config scaler_config;
  76        /* Bitfield of all the planes that have requested a scaled output. */
  77        u8 scaled_planes_mask;
  78};
  79
  80#define to_malidp_crtc_state(x) container_of(x, struct malidp_crtc_state, base)
  81
  82int malidp_de_planes_init(struct drm_device *drm);
  83int malidp_crtc_init(struct drm_device *drm);
  84
  85#ifdef CONFIG_DEBUG_FS
  86void malidp_error(struct malidp_drm *malidp,
  87                  struct malidp_error_stats *error_stats, u32 status,
  88                  u64 vblank);
  89#endif
  90
  91/* often used combination of rotational bits */
  92#define MALIDP_ROTATED_MASK     (DRM_MODE_ROTATE_90 | DRM_MODE_ROTATE_270)
  93
  94#endif  /* __MALIDP_DRV_H__ */
  95