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_CMPT 10
20#define LLCC_GPUHTW 11
21#define LLCC_GPU 12
22#define LLCC_MMUHWT 13
23#define LLCC_CMPTDMA 15
24#define LLCC_DISP 16
25#define LLCC_VIDFW 17
26#define LLCC_MDMHPFX 20
27#define LLCC_MDMPNG 21
28#define LLCC_AUDHW 22
29
30/**
31 * llcc_slice_desc - Cache slice descriptor
32 * @slice_id: llcc slice id
33 * @slice_size: Size allocated for the llcc slice
34 */
35struct llcc_slice_desc {
36 u32 slice_id;
37 size_t slice_size;
38};
39
40/**
41 * llcc_edac_reg_data - llcc edac registers data for each error type
42 * @name: Name of the error
43 * @synd_reg: Syndrome register address
44 * @count_status_reg: Status register address to read the error count
45 * @ways_status_reg: Status register address to read the error ways
46 * @reg_cnt: Number of registers
47 * @count_mask: Mask value to get the error count
48 * @ways_mask: Mask value to get the error ways
49 * @count_shift: Shift value to get the error count
50 * @ways_shift: Shift value to get the error ways
51 */
52struct llcc_edac_reg_data {
53 char *name;
54 u64 synd_reg;
55 u64 count_status_reg;
56 u64 ways_status_reg;
57 u32 reg_cnt;
58 u32 count_mask;
59 u32 ways_mask;
60 u8 count_shift;
61 u8 ways_shift;
62};
63
64/**
65 * llcc_drv_data - Data associated with the llcc driver
66 * @regmap: regmap associated with the llcc device
67 * @bcast_regmap: regmap associated with llcc broadcast offset
68 * @cfg: pointer to the data structure for slice configuration
69 * @lock: mutex associated with each slice
70 * @cfg_size: size of the config data table
71 * @max_slices: max slices as read from device tree
72 * @num_banks: Number of llcc banks
73 * @bitmap: Bit map to track the active slice ids
74 * @offsets: Pointer to the bank offsets array
75 * @ecc_irq: interrupt for llcc cache error detection and reporting
76 */
77struct llcc_drv_data {
78 struct regmap *regmap;
79 struct regmap *bcast_regmap;
80 const struct llcc_slice_config *cfg;
81 struct mutex lock;
82 u32 cfg_size;
83 u32 max_slices;
84 u32 num_banks;
85 unsigned long *bitmap;
86 u32 *offsets;
87 int ecc_irq;
88};
89
90#if IS_ENABLED(CONFIG_QCOM_LLCC)
91/**
92 * llcc_slice_getd - get llcc slice descriptor
93 * @uid: usecase_id of the client
94 */
95struct llcc_slice_desc *llcc_slice_getd(u32 uid);
96
97/**
98 * llcc_slice_putd - llcc slice descritpor
99 * @desc: Pointer to llcc slice descriptor
100 */
101void llcc_slice_putd(struct llcc_slice_desc *desc);
102
103/**
104 * llcc_get_slice_id - get slice id
105 * @desc: Pointer to llcc slice descriptor
106 */
107int llcc_get_slice_id(struct llcc_slice_desc *desc);
108
109/**
110 * llcc_get_slice_size - llcc slice size
111 * @desc: Pointer to llcc slice descriptor
112 */
113size_t llcc_get_slice_size(struct llcc_slice_desc *desc);
114
115/**
116 * llcc_slice_activate - Activate the llcc slice
117 * @desc: Pointer to llcc slice descriptor
118 */
119int llcc_slice_activate(struct llcc_slice_desc *desc);
120
121/**
122 * llcc_slice_deactivate - Deactivate the llcc slice
123 * @desc: Pointer to llcc slice descriptor
124 */
125int llcc_slice_deactivate(struct llcc_slice_desc *desc);
126
127#else
128static inline struct llcc_slice_desc *llcc_slice_getd(u32 uid)
129{
130 return NULL;
131}
132
133static inline void llcc_slice_putd(struct llcc_slice_desc *desc)
134{
135
136};
137
138static inline int llcc_get_slice_id(struct llcc_slice_desc *desc)
139{
140 return -EINVAL;
141}
142
143static inline size_t llcc_get_slice_size(struct llcc_slice_desc *desc)
144{
145 return 0;
146}
147static inline int llcc_slice_activate(struct llcc_slice_desc *desc)
148{
149 return -EINVAL;
150}
151
152static inline int llcc_slice_deactivate(struct llcc_slice_desc *desc)
153{
154 return -EINVAL;
155}
156#endif
157
158#endif