251 lines
6.4 KiB
C
251 lines
6.4 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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/*
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* Copyright (c) 2017-2021, The Linux Foundation. All rights reserved.
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* Copyright (c) 2022-2023, Qualcomm Innovation Center, Inc. All rights reserved.
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*/
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#include <linux/platform_device.h>
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#include <linux/types.h>
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#ifndef __LLCC_QCOM__
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#define __LLCC_QCOM__
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#define LLCC_CPUSS 1
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#define LLCC_VIDSC0 2
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#define LLCC_VIDSC1 3
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#define LLCC_ROTATOR 4
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#define LLCC_VOICE 5
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#define LLCC_AUDIO 6
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#define LLCC_MDMHPGRW 7
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#define LLCC_MDM 8
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#define LLCC_MDMHW 9
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#define LLCC_CMPT 10
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#define LLCC_GPUHTW 11
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#define LLCC_GPU 12
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#define LLCC_MMUHWT 13
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#define LLCC_CMPTDMA 15
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#define LLCC_DISP 16
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#define LLCC_VIDFW 17
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#define LLCC_MDMHPFX 20
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#define LLCC_MDMPNG 21
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#define LLCC_AUDHW 22
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#define LLCC_NPU 23
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#define LLCC_WLNHW 24
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#define LLCC_PIMEM 25
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#define LLCC_ECC 26
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#define LLCC_CVP 28
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#define LLCC_MDMVPE 29
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#define LLCC_APTCM 30
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#define LLCC_WRTCH 31
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#define LLCC_CVPFW 32
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#define LLCC_CPUSS1 33
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#define LLCC_CAMEXP0 34
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#define LLCC_CPUMTE 35
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#define LLCC_CPUHWT 36
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#define LLCC_MDMCLAD2 37
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#define LLCC_CAMEXP1 38
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#define LLCC_CMPTHCP 39
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#define LLCC_LCPDARE 40
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#define LLCC_AENPU 45
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#define LLCC_ISLAND1 46
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#define LLCC_ISLAND2 47
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#define LLCC_ISLAND3 48
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#define LLCC_ISLAND4 49
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#define LLCC_CAMEXP2 50
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#define LLCC_CAMEXP3 51
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#define LLCC_CAMEXP4 52
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#define LLCC_DISP_WB 53
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#define LLCC_DISP_1 54
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#define LLCC_VIDVSP 64
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/**
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* llcc_slice_desc - Cache slice descriptor
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* @slice_id: llcc slice id
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* @slice_size: Size allocated for the llcc slice
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*/
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struct llcc_slice_desc {
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u32 slice_id;
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size_t slice_size;
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atomic_t refcount;
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};
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/**
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* llcc_edac_reg_data - llcc edac registers data for each error type
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* @name: Name of the error
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* @synd_reg: Syndrome register address
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* @count_status_reg: Status register address to read the error count
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* @ways_status_reg: Status register address to read the error ways
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* @reg_cnt: Number of registers
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* @count_mask: Mask value to get the error count
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* @ways_mask: Mask value to get the error ways
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* @count_shift: Shift value to get the error count
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* @ways_shift: Shift value to get the error ways
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*/
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struct llcc_edac_reg_data {
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char *name;
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u64 synd_reg;
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u64 count_status_reg;
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u64 ways_status_reg;
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u32 reg_cnt;
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u32 count_mask;
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u32 ways_mask;
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u8 count_shift;
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u8 ways_shift;
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};
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/**
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* llcc_drv_data - Data associated with the llcc driver
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* @regmap: regmap associated with the llcc device
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* @bcast_regmap: regmap associated with llcc broadcast offset
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* @cfg: pointer to the data structure for slice configuration
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* @lock: mutex associated with each slice
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* @cfg_index: index of config table if multiple configs present for a target
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* @cfg_size: size of the config data table
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* @max_slices: max slices as read from device tree
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* @num_banks: Number of llcc banks
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* @bitmap: Bit map to track the active slice ids
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* @offsets: Pointer to the bank offsets array
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* @ecc_irq: interrupt for llcc cache error detection and reporting
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* @llcc_ver: hardware version (20 for V2.0)
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* @desc: Array pointer of llcc_slice_desc
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*/
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struct llcc_drv_data {
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struct regmap *regmap;
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struct regmap *bcast_regmap;
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const struct llcc_slice_config *cfg;
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struct mutex lock;
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u32 cfg_index;
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u32 cfg_size;
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u32 max_slices;
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u32 num_banks;
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unsigned long *bitmap;
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u32 *offsets;
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int ecc_irq;
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int llcc_ver;
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bool cap_based_alloc_and_pwr_collapse;
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struct llcc_slice_desc *desc;
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};
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/**
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* Enum describing the various staling modes available for clients to use.
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*/
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enum llcc_staling_mode {
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LLCC_STALING_MODE_CAPACITY, /* Default option on reset */
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LLCC_STALING_MODE_NOTIFY,
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LLCC_STALING_MODE_MAX
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};
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enum llcc_staling_notify_op {
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LLCC_NOTIFY_STALING_WRITEBACK,
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/* LLCC_NOTIFY_STALING_NO_WRITEBACK, */
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LLCC_NOTIFY_STALING_OPS_MAX
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};
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struct llcc_staling_mode_params {
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enum llcc_staling_mode staling_mode;
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union {
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/* STALING_MODE_CAPACITY needs no params */
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struct staling_mode_notify_params {
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u8 staling_distance;
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enum llcc_staling_notify_op op;
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} notify_params;
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};
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};
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#if IS_ENABLED(CONFIG_QCOM_LLCC)
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/**
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* llcc_slice_getd - get llcc slice descriptor
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* @uid: usecase_id of the client
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*/
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struct llcc_slice_desc *llcc_slice_getd(u32 uid);
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/**
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* llcc_slice_putd - llcc slice descritpor
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* @desc: Pointer to llcc slice descriptor
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*/
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void llcc_slice_putd(struct llcc_slice_desc *desc);
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/**
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* llcc_get_slice_id - get slice id
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* @desc: Pointer to llcc slice descriptor
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*/
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int llcc_get_slice_id(struct llcc_slice_desc *desc);
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/**
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* llcc_get_slice_size - llcc slice size
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* @desc: Pointer to llcc slice descriptor
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*/
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size_t llcc_get_slice_size(struct llcc_slice_desc *desc);
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/**
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* llcc_slice_activate - Activate the llcc slice
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* @desc: Pointer to llcc slice descriptor
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*/
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int llcc_slice_activate(struct llcc_slice_desc *desc);
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/**
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* llcc_slice_deactivate - Deactivate the llcc slice
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* @desc: Pointer to llcc slice descriptor
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*/
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int llcc_slice_deactivate(struct llcc_slice_desc *desc);
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/**
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* llcc_configure_staling_mode - Configure cache staling mode by setting the
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* staling_mode and corresponding
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* mode-specific params
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*
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* @desc: Pointer to llcc slice descriptor
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* @p: Staling mode-specific params
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*
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* Returns: zero on success or negative errno.
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*/
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int llcc_configure_staling_mode(struct llcc_slice_desc *desc,
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struct llcc_staling_mode_params *p);
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/**
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* llcc_notif_staling_inc_counter - Trigger the staling of the sub-cache frame.
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*
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* @desc: Pointer to llcc slice descriptor
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*
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* Returns: zero on success or negative errno.
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*/
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int llcc_notif_staling_inc_counter(struct llcc_slice_desc *desc);
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#else
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static inline struct llcc_slice_desc *llcc_slice_getd(u32 uid)
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{
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return NULL;
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}
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static inline void llcc_slice_putd(struct llcc_slice_desc *desc)
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{
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};
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static inline int llcc_get_slice_id(struct llcc_slice_desc *desc)
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{
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return -EINVAL;
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}
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static inline size_t llcc_get_slice_size(struct llcc_slice_desc *desc)
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{
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return 0;
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}
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static inline int llcc_slice_activate(struct llcc_slice_desc *desc)
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{
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return -EINVAL;
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}
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static inline int llcc_slice_deactivate(struct llcc_slice_desc *desc)
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{
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return -EINVAL;
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}
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static inline int llcc_configure_staling_mode(struct llcc_slice_desc *desc,
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struct llcc_staling_mode_params *p)
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{
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return -EINVAL;
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}
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static inline int llcc_notif_staling_inc_counter(struct llcc_slice_desc *desc)
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{
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return -EINVAL;
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}
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#endif
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#endif
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