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