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_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  */
52 struct 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  */
77 struct 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  */
95 struct 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  */
101 void 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  */
107 int 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  */
113 size_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  */
119 int 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  */
125 int llcc_slice_deactivate(struct llcc_slice_desc *desc);
126 
127 #else
llcc_slice_getd(u32 uid)128 static inline struct llcc_slice_desc *llcc_slice_getd(u32 uid)
129 {
130 	return NULL;
131 }
132 
llcc_slice_putd(struct llcc_slice_desc * desc)133 static inline void llcc_slice_putd(struct llcc_slice_desc *desc)
134 {
135 
136 };
137 
llcc_get_slice_id(struct llcc_slice_desc * desc)138 static inline int llcc_get_slice_id(struct llcc_slice_desc *desc)
139 {
140 	return -EINVAL;
141 }
142 
llcc_get_slice_size(struct llcc_slice_desc * desc)143 static inline size_t llcc_get_slice_size(struct llcc_slice_desc *desc)
144 {
145 	return 0;
146 }
llcc_slice_activate(struct llcc_slice_desc * desc)147 static inline int llcc_slice_activate(struct llcc_slice_desc *desc)
148 {
149 	return -EINVAL;
150 }
151 
llcc_slice_deactivate(struct llcc_slice_desc * desc)152 static inline int llcc_slice_deactivate(struct llcc_slice_desc *desc)
153 {
154 	return -EINVAL;
155 }
156 #endif
157 
158 #endif
159