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 */
35 struct llcc_slice_desc {
36 u32 slice_id;
37 size_t slice_size;
38 };
39
40 /**
41 * llcc_slice_config - Data associated with the llcc slice
42 * @usecase_id: usecase id for which the llcc slice is used
43 * @slice_id: llcc slice id assigned to each slice
44 * @max_cap: maximum capacity of the llcc slice
45 * @priority: priority of the llcc slice
46 * @fixed_size: whether the llcc slice can grow beyond its size
47 * @bonus_ways: bonus ways associated with llcc slice
48 * @res_ways: reserved ways associated with llcc slice
49 * @cache_mode: mode of the llcc slice
50 * @probe_target_ways: Probe only reserved and bonus ways on a cache miss
51 * @dis_cap_alloc: Disable capacity based allocation
52 * @retain_on_pc: Retain through power collapse
53 * @activate_on_init: activate the slice on init
54 */
55 struct llcc_slice_config {
56 u32 usecase_id;
57 u32 slice_id;
58 u32 max_cap;
59 u32 priority;
60 bool fixed_size;
61 u32 bonus_ways;
62 u32 res_ways;
63 u32 cache_mode;
64 u32 probe_target_ways;
65 bool dis_cap_alloc;
66 bool retain_on_pc;
67 bool activate_on_init;
68 };
69
70 /**
71 * llcc_drv_data - Data associated with the llcc driver
72 * @regmap: regmap associated with the llcc device
73 * @bcast_regmap: regmap associated with llcc broadcast offset
74 * @cfg: pointer to the data structure for slice configuration
75 * @lock: mutex associated with each slice
76 * @cfg_size: size of the config data table
77 * @max_slices: max slices as read from device tree
78 * @num_banks: Number of llcc banks
79 * @bitmap: Bit map to track the active slice ids
80 * @offsets: Pointer to the bank offsets array
81 * @ecc_irq: interrupt for llcc cache error detection and reporting
82 */
83 struct llcc_drv_data {
84 struct regmap *regmap;
85 struct regmap *bcast_regmap;
86 const struct llcc_slice_config *cfg;
87 struct mutex lock;
88 u32 cfg_size;
89 u32 max_slices;
90 u32 num_banks;
91 unsigned long *bitmap;
92 u32 *offsets;
93 int ecc_irq;
94 };
95
96 /**
97 * llcc_edac_reg_data - llcc edac registers data for each error type
98 * @name: Name of the error
99 * @synd_reg: Syndrome register address
100 * @count_status_reg: Status register address to read the error count
101 * @ways_status_reg: Status register address to read the error ways
102 * @reg_cnt: Number of registers
103 * @count_mask: Mask value to get the error count
104 * @ways_mask: Mask value to get the error ways
105 * @count_shift: Shift value to get the error count
106 * @ways_shift: Shift value to get the error ways
107 */
108 struct llcc_edac_reg_data {
109 char *name;
110 u64 synd_reg;
111 u64 count_status_reg;
112 u64 ways_status_reg;
113 u32 reg_cnt;
114 u32 count_mask;
115 u32 ways_mask;
116 u8 count_shift;
117 u8 ways_shift;
118 };
119
120 #if IS_ENABLED(CONFIG_QCOM_LLCC)
121 /**
122 * llcc_slice_getd - get llcc slice descriptor
123 * @uid: usecase_id of the client
124 */
125 struct llcc_slice_desc *llcc_slice_getd(u32 uid);
126
127 /**
128 * llcc_slice_putd - llcc slice descritpor
129 * @desc: Pointer to llcc slice descriptor
130 */
131 void llcc_slice_putd(struct llcc_slice_desc *desc);
132
133 /**
134 * llcc_get_slice_id - get slice id
135 * @desc: Pointer to llcc slice descriptor
136 */
137 int llcc_get_slice_id(struct llcc_slice_desc *desc);
138
139 /**
140 * llcc_get_slice_size - llcc slice size
141 * @desc: Pointer to llcc slice descriptor
142 */
143 size_t llcc_get_slice_size(struct llcc_slice_desc *desc);
144
145 /**
146 * llcc_slice_activate - Activate the llcc slice
147 * @desc: Pointer to llcc slice descriptor
148 */
149 int llcc_slice_activate(struct llcc_slice_desc *desc);
150
151 /**
152 * llcc_slice_deactivate - Deactivate the llcc slice
153 * @desc: Pointer to llcc slice descriptor
154 */
155 int llcc_slice_deactivate(struct llcc_slice_desc *desc);
156
157 /**
158 * qcom_llcc_probe - program the sct table
159 * @pdev: platform device pointer
160 * @table: soc sct table
161 * @sz: Size of the config table
162 */
163 int qcom_llcc_probe(struct platform_device *pdev,
164 const struct llcc_slice_config *table, u32 sz);
165
166 /**
167 * qcom_llcc_remove - remove the sct table
168 * @pdev: Platform device pointer
169 */
170 int qcom_llcc_remove(struct platform_device *pdev);
171 #else
172 static inline struct llcc_slice_desc *llcc_slice_getd(u32 uid)
173 {
174 return NULL;
175 }
176
177 static inline void llcc_slice_putd(struct llcc_slice_desc *desc)
178 {
179
180 };
181
182 static inline int llcc_get_slice_id(struct llcc_slice_desc *desc)
183 {
184 return -EINVAL;
185 }
186
187 static inline size_t llcc_get_slice_size(struct llcc_slice_desc *desc)
188 {
189 return 0;
190 }
191 static inline int llcc_slice_activate(struct llcc_slice_desc *desc)
192 {
193 return -EINVAL;
194 }
195
196 static inline int llcc_slice_deactivate(struct llcc_slice_desc *desc)
197 {
198 return -EINVAL;
199 }
200 static inline int qcom_llcc_probe(struct platform_device *pdev,
201 const struct llcc_slice_config *table, u32 sz)
202 {
203 return -ENODEV;
204 }
205
206 static inline int qcom_llcc_remove(struct platform_device *pdev)
207 {
208 return -ENODEV;
209 }
210 #endif
211
212 #endif