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Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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1/* SPDX-License-Identifier: GPL-2.0 */
2/*
3 * Copyright (c) 2017-2018, The Linux Foundation. All rights reserved.
4 *
5 */
6
7#include <linux/platform_device.h>
8#ifndef __LLCC_QCOM__
9#define __LLCC_QCOM__
10
11#define LLCC_CPUSS 1
12#define LLCC_VIDSC0 2
13#define LLCC_VIDSC1 3
14#define LLCC_ROTATOR 4
15#define LLCC_VOICE 5
16#define LLCC_AUDIO 6
17#define LLCC_MDMHPGRW 7
18#define LLCC_MDM 8
19#define LLCC_MODHW 9
20#define LLCC_CMPT 10
21#define LLCC_GPUHTW 11
22#define LLCC_GPU 12
23#define LLCC_MMUHWT 13
24#define LLCC_CMPTDMA 15
25#define LLCC_DISP 16
26#define LLCC_VIDFW 17
27#define LLCC_MDMHPFX 20
28#define LLCC_MDMPNG 21
29#define LLCC_AUDHW 22
30#define LLCC_NPU 23
31#define LLCC_WLHW 24
32#define LLCC_CVP 28
33#define LLCC_MODPE 29
34#define LLCC_APTCM 30
35#define LLCC_WRCACHE 31
36
37/**
38 * struct llcc_slice_desc - Cache slice descriptor
39 * @slice_id: llcc slice id
40 * @slice_size: Size allocated for the llcc slice
41 */
42struct llcc_slice_desc {
43 u32 slice_id;
44 size_t slice_size;
45};
46
47/**
48 * struct llcc_edac_reg_data - llcc edac registers data for each error type
49 * @name: Name of the error
50 * @synd_reg: Syndrome register address
51 * @count_status_reg: Status register address to read the error count
52 * @ways_status_reg: Status register address to read the error ways
53 * @reg_cnt: Number of registers
54 * @count_mask: Mask value to get the error count
55 * @ways_mask: Mask value to get the error ways
56 * @count_shift: Shift value to get the error count
57 * @ways_shift: Shift value to get the error ways
58 */
59struct llcc_edac_reg_data {
60 char *name;
61 u64 synd_reg;
62 u64 count_status_reg;
63 u64 ways_status_reg;
64 u32 reg_cnt;
65 u32 count_mask;
66 u32 ways_mask;
67 u8 count_shift;
68 u8 ways_shift;
69};
70
71/**
72 * struct llcc_drv_data - Data associated with the llcc driver
73 * @regmap: regmap associated with the llcc device
74 * @bcast_regmap: regmap associated with llcc broadcast offset
75 * @cfg: pointer to the data structure for slice configuration
76 * @lock: mutex associated with each slice
77 * @cfg_size: size of the config data table
78 * @max_slices: max slices as read from device tree
79 * @num_banks: Number of llcc banks
80 * @bitmap: Bit map to track the active slice ids
81 * @offsets: Pointer to the bank offsets array
82 * @ecc_irq: interrupt for llcc cache error detection and reporting
83 * @major_version: Indicates the LLCC major version
84 */
85struct llcc_drv_data {
86 struct regmap *regmap;
87 struct regmap *bcast_regmap;
88 const struct llcc_slice_config *cfg;
89 struct mutex lock;
90 u32 cfg_size;
91 u32 max_slices;
92 u32 num_banks;
93 unsigned long *bitmap;
94 u32 *offsets;
95 int ecc_irq;
96 u32 major_version;
97};
98
99#if IS_ENABLED(CONFIG_QCOM_LLCC)
100/**
101 * llcc_slice_getd - get llcc slice descriptor
102 * @uid: usecase_id of the client
103 */
104struct llcc_slice_desc *llcc_slice_getd(u32 uid);
105
106/**
107 * llcc_slice_putd - llcc slice descritpor
108 * @desc: Pointer to llcc slice descriptor
109 */
110void llcc_slice_putd(struct llcc_slice_desc *desc);
111
112/**
113 * llcc_get_slice_id - get slice id
114 * @desc: Pointer to llcc slice descriptor
115 */
116int llcc_get_slice_id(struct llcc_slice_desc *desc);
117
118/**
119 * llcc_get_slice_size - llcc slice size
120 * @desc: Pointer to llcc slice descriptor
121 */
122size_t llcc_get_slice_size(struct llcc_slice_desc *desc);
123
124/**
125 * llcc_slice_activate - Activate the llcc slice
126 * @desc: Pointer to llcc slice descriptor
127 */
128int llcc_slice_activate(struct llcc_slice_desc *desc);
129
130/**
131 * llcc_slice_deactivate - Deactivate the llcc slice
132 * @desc: Pointer to llcc slice descriptor
133 */
134int llcc_slice_deactivate(struct llcc_slice_desc *desc);
135
136#else
137static inline struct llcc_slice_desc *llcc_slice_getd(u32 uid)
138{
139 return NULL;
140}
141
142static inline void llcc_slice_putd(struct llcc_slice_desc *desc)
143{
144
145};
146
147static inline int llcc_get_slice_id(struct llcc_slice_desc *desc)
148{
149 return -EINVAL;
150}
151
152static inline size_t llcc_get_slice_size(struct llcc_slice_desc *desc)
153{
154 return 0;
155}
156static inline int llcc_slice_activate(struct llcc_slice_desc *desc)
157{
158 return -EINVAL;
159}
160
161static inline int llcc_slice_deactivate(struct llcc_slice_desc *desc)
162{
163 return -EINVAL;
164}
165#endif
166
167#endif