LXR linux/include/linux/soc/qcom/llcc-qcom.h

   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
 159