1/* SPDX-License-Identifier: GPL-2.0-only */
  2/*
  3 * (C) COPYRIGHT 2016 ARM Limited. All rights reserved.
  4 * Author: Liviu Dudau <Liviu.Dudau@arm.com>
  5 *
  6 * ARM Mali DP500/DP550/DP650 KMS/DRM driver structures
  7 */
  8
  9#ifndef __MALIDP_DRV_H__
 10#define __MALIDP_DRV_H__
 11
 12#include <linux/mutex.h>
 13#include <linux/wait.h>
 14#include <linux/spinlock.h>
 15
 16#include <drm/drm_writeback.h>
 17#include <drm/drm_encoder.h>
 18
 19#include "malidp_hw.h"
 20
 21#define MALIDP_CONFIG_VALID_INIT	0
 22#define MALIDP_CONFIG_VALID_DONE	1
 23#define MALIDP_CONFIG_START		0xd0
 24
 25struct malidp_error_stats {
 26	s32 num_errors;
 27	u32 last_error_status;
 28	s64 last_error_vblank;
 29};
 30
 31struct malidp_drm {
 32	struct malidp_hw_device *dev;
 33	struct drm_crtc crtc;
 34	struct drm_writeback_connector mw_connector;
 35	wait_queue_head_t wq;
 36	struct drm_pending_vblank_event *event;
 37	atomic_t config_valid;
 38	u32 core_id;
 39#ifdef CONFIG_DEBUG_FS
 40	struct malidp_error_stats de_errors;
 41	struct malidp_error_stats se_errors;
 42	/* Protects errors stats */
 43	spinlock_t errors_lock;
 44#endif
 45};
 46
 47#define crtc_to_malidp_device(x) container_of(x, struct malidp_drm, crtc)
 48
 49struct malidp_plane {
 50	struct drm_plane base;
 51	struct malidp_hw_device *hwdev;
 52	const struct malidp_layer *layer;
 53};
 54
 55enum mmu_prefetch_mode {
 56	MALIDP_PREFETCH_MODE_NONE,
 57	MALIDP_PREFETCH_MODE_PARTIAL,
 58	MALIDP_PREFETCH_MODE_FULL,
 59};
 60
 61struct malidp_plane_state {
 62	struct drm_plane_state base;
 63
 64	/* size of the required rotation memory if plane is rotated */
 65	u32 rotmem_size;
 66	/* internal format ID */
 67	u8 format;
 68	u8 n_planes;
 69	enum mmu_prefetch_mode mmu_prefetch_mode;
 70	u32 mmu_prefetch_pgsize;
 71};
 72
 73#define to_malidp_plane(x) container_of(x, struct malidp_plane, base)
 74#define to_malidp_plane_state(x) container_of(x, struct malidp_plane_state, base)
 75
 76struct malidp_crtc_state {
 77	struct drm_crtc_state base;
 78	u32 gamma_coeffs[MALIDP_COEFFTAB_NUM_COEFFS];
 79	u32 coloradj_coeffs[MALIDP_COLORADJ_NUM_COEFFS];
 80	struct malidp_se_config scaler_config;
 81	/* Bitfield of all the planes that have requested a scaled output. */
 82	u8 scaled_planes_mask;
 83};
 84
 85#define to_malidp_crtc_state(x) container_of(x, struct malidp_crtc_state, base)
 86
 87int malidp_de_planes_init(struct drm_device *drm);
 88int malidp_crtc_init(struct drm_device *drm);
 89
 90bool malidp_hw_format_is_linear_only(u32 format);
 91bool malidp_hw_format_is_afbc_only(u32 format);
 92
 93bool malidp_format_mod_supported(struct drm_device *drm,
 94				 u32 format, u64 modifier);
 95
 96#ifdef CONFIG_DEBUG_FS
 97void malidp_error(struct malidp_drm *malidp,
 98		  struct malidp_error_stats *error_stats, u32 status,
 99		  u64 vblank);
100#endif
101
102/* often used combination of rotational bits */
103#define MALIDP_ROTATED_MASK	(DRM_MODE_ROTATE_90 | DRM_MODE_ROTATE_270)
104
105#endif  /* __MALIDP_DRV_H__ */