tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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linux
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_PIMEM 25
33#define LLCC_DRE 26
34#define LLCC_CVP 28
35#define LLCC_MODPE 29
36#define LLCC_APTCM 30
37#define LLCC_WRCACHE 31
38#define LLCC_CVPFW 32
39#define LLCC_CPUSS1 33
40#define LLCC_CAMEXP0 34
41#define LLCC_CPUMTE 35
42#define LLCC_CPUHWT 36
43#define LLCC_MDMCLAD2 37
44#define LLCC_CAMEXP1 38
45#define LLCC_AENPU 45
46
47/**
48 * struct llcc_slice_desc - Cache slice descriptor
49 * @slice_id: llcc slice id
50 * @slice_size: Size allocated for the llcc slice
51 */
52struct llcc_slice_desc {
53 u32 slice_id;
54 size_t slice_size;
55};
56
57/**
58 * struct llcc_edac_reg_data - llcc edac registers data for each error type
59 * @name: Name of the error
60 * @synd_reg: Syndrome register address
61 * @count_status_reg: Status register address to read the error count
62 * @ways_status_reg: Status register address to read the error ways
63 * @reg_cnt: Number of registers
64 * @count_mask: Mask value to get the error count
65 * @ways_mask: Mask value to get the error ways
66 * @count_shift: Shift value to get the error count
67 * @ways_shift: Shift value to get the error ways
68 */
69struct llcc_edac_reg_data {
70 char *name;
71 u64 synd_reg;
72 u64 count_status_reg;
73 u64 ways_status_reg;
74 u32 reg_cnt;
75 u32 count_mask;
76 u32 ways_mask;
77 u8 count_shift;
78 u8 ways_shift;
79};
80
81/**
82 * struct llcc_drv_data - Data associated with the llcc driver
83 * @regmap: regmap associated with the llcc device
84 * @bcast_regmap: regmap associated with llcc broadcast offset
85 * @cfg: pointer to the data structure for slice configuration
86 * @lock: mutex associated with each slice
87 * @cfg_size: size of the config data table
88 * @max_slices: max slices as read from device tree
89 * @num_banks: Number of llcc banks
90 * @bitmap: Bit map to track the active slice ids
91 * @offsets: Pointer to the bank offsets array
92 * @ecc_irq: interrupt for llcc cache error detection and reporting
93 * @version: Indicates the LLCC version
94 */
95struct llcc_drv_data {
96 struct regmap *regmap;
97 struct regmap *bcast_regmap;
98 const struct llcc_slice_config *cfg;
99 struct mutex lock;
100 u32 cfg_size;
101 u32 max_slices;
102 u32 num_banks;
103 unsigned long *bitmap;
104 u32 *offsets;
105 int ecc_irq;
106 u32 version;
107};
108
109#if IS_ENABLED(CONFIG_QCOM_LLCC)
110/**
111 * llcc_slice_getd - get llcc slice descriptor
112 * @uid: usecase_id of the client
113 */
114struct llcc_slice_desc *llcc_slice_getd(u32 uid);
115
116/**
117 * llcc_slice_putd - llcc slice descritpor
118 * @desc: Pointer to llcc slice descriptor
119 */
120void llcc_slice_putd(struct llcc_slice_desc *desc);
121
122/**
123 * llcc_get_slice_id - get slice id
124 * @desc: Pointer to llcc slice descriptor
125 */
126int llcc_get_slice_id(struct llcc_slice_desc *desc);
127
128/**
129 * llcc_get_slice_size - llcc slice size
130 * @desc: Pointer to llcc slice descriptor
131 */
132size_t llcc_get_slice_size(struct llcc_slice_desc *desc);
133
134/**
135 * llcc_slice_activate - Activate the llcc slice
136 * @desc: Pointer to llcc slice descriptor
137 */
138int llcc_slice_activate(struct llcc_slice_desc *desc);
139
140/**
141 * llcc_slice_deactivate - Deactivate the llcc slice
142 * @desc: Pointer to llcc slice descriptor
143 */
144int llcc_slice_deactivate(struct llcc_slice_desc *desc);
145
146#else
147static inline struct llcc_slice_desc *llcc_slice_getd(u32 uid)
148{
149 return NULL;
150}
151
152static inline void llcc_slice_putd(struct llcc_slice_desc *desc)
153{
154
155};
156
157static inline int llcc_get_slice_id(struct llcc_slice_desc *desc)
158{
159 return -EINVAL;
160}
161
162static inline size_t llcc_get_slice_size(struct llcc_slice_desc *desc)
163{
164 return 0;
165}
166static inline int llcc_slice_activate(struct llcc_slice_desc *desc)
167{
168 return -EINVAL;
169}
170
171static inline int llcc_slice_deactivate(struct llcc_slice_desc *desc)
172{
173 return -EINVAL;
174}
175#endif
176
177#endif