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__ */
106