tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
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linux
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
58enum mmu_prefetch_mode {
59 MALIDP_PREFETCH_MODE_NONE,
60 MALIDP_PREFETCH_MODE_PARTIAL,
61 MALIDP_PREFETCH_MODE_FULL,
62};
63
64struct malidp_plane_state {
65 struct drm_plane_state base;
66
67 /* size of the required rotation memory if plane is rotated */
68 u32 rotmem_size;
69 /* internal format ID */
70 u8 format;
71 u8 n_planes;
72 enum mmu_prefetch_mode mmu_prefetch_mode;
73 u32 mmu_prefetch_pgsize;
74};
75
76#define to_malidp_plane(x) container_of(x, struct malidp_plane, base)
77#define to_malidp_plane_state(x) container_of(x, struct malidp_plane_state, base)
78
79struct malidp_crtc_state {
80 struct drm_crtc_state base;
81 u32 gamma_coeffs[MALIDP_COEFFTAB_NUM_COEFFS];
82 u32 coloradj_coeffs[MALIDP_COLORADJ_NUM_COEFFS];
83 struct malidp_se_config scaler_config;
84 /* Bitfield of all the planes that have requested a scaled output. */
85 u8 scaled_planes_mask;
86};
87
88#define to_malidp_crtc_state(x) container_of(x, struct malidp_crtc_state, base)
89
90int malidp_de_planes_init(struct drm_device *drm);
91int malidp_crtc_init(struct drm_device *drm);
92
93bool malidp_hw_format_is_linear_only(u32 format);
94bool malidp_hw_format_is_afbc_only(u32 format);
95
96bool malidp_format_mod_supported(struct drm_device *drm,
97 u32 format, u64 modifier);
98
99#ifdef CONFIG_DEBUG_FS
100void malidp_error(struct malidp_drm *malidp,
101 struct malidp_error_stats *error_stats, u32 status,
102 u64 vblank);
103#endif
104
105/* often used combination of rotational bits */
106#define MALIDP_ROTATED_MASK (DRM_MODE_ROTATE_90 | DRM_MODE_ROTATE_270)
107
108#endif /* __MALIDP_DRV_H__ */