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/* SPDX-License-Identifier: GPL-2.0 */
/*
* Copyright (c) 2017-2018, The Linux Foundation. All rights reserved.
*
*/
#include <linux/platform_device.h>
#ifndef __LLCC_QCOM__
#define __LLCC_QCOM__
#define LLCC_CPUSS 1
#define LLCC_VIDSC0 2
#define LLCC_VIDSC1 3
#define LLCC_ROTATOR 4
#define LLCC_VOICE 5
#define LLCC_AUDIO 6
#define LLCC_MDMHPGRW 7
#define LLCC_MDM 8
#define LLCC_CMPT 10
#define LLCC_GPUHTW 11
#define LLCC_GPU 12
#define LLCC_MMUHWT 13
#define LLCC_CMPTDMA 15
#define LLCC_DISP 16
#define LLCC_VIDFW 17
#define LLCC_MDMHPFX 20
#define LLCC_MDMPNG 21
#define LLCC_AUDHW 22
/**
* llcc_slice_desc - Cache slice descriptor
* @slice_id: llcc slice id
* @slice_size: Size allocated for the llcc slice
*/
struct llcc_slice_desc {
u32 slice_id;
size_t slice_size;
};
/**
* llcc_slice_config - Data associated with the llcc slice
* @usecase_id: Unique id for the client's use case
* @slice_id: llcc slice id for each client
* @max_cap: The maximum capacity of the cache slice provided in KB
* @priority: Priority of the client used to select victim line for replacement
* @fixed_size: Boolean indicating if the slice has a fixed capacity
* @bonus_ways: Bonus ways are additional ways to be used for any slice,
* if client ends up using more than reserved cache ways. Bonus
* ways are allocated only if they are not reserved for some
* other client.
* @res_ways: Reserved ways for the cache slice, the reserved ways cannot
* be used by any other client than the one its assigned to.
* @cache_mode: Each slice operates as a cache, this controls the mode of the
* slice: normal or TCM(Tightly Coupled Memory)
* @probe_target_ways: Determines what ways to probe for access hit. When
* configured to 1 only bonus and reserved ways are probed.
* When configured to 0 all ways in llcc are probed.
* @dis_cap_alloc: Disable capacity based allocation for a client
* @retain_on_pc: If this bit is set and client has maintained active vote
* then the ways assigned to this client are not flushed on power
* collapse.
* @activate_on_init: Activate the slice immediately after it is programmed
*/
struct llcc_slice_config {
u32 usecase_id;
u32 slice_id;
u32 max_cap;
u32 priority;
bool fixed_size;
u32 bonus_ways;
u32 res_ways;
u32 cache_mode;
u32 probe_target_ways;
bool dis_cap_alloc;
bool retain_on_pc;
bool activate_on_init;
};
/**
* llcc_drv_data - Data associated with the llcc driver
* @regmap: regmap associated with the llcc device
* @bcast_regmap: regmap associated with llcc broadcast offset
* @cfg: pointer to the data structure for slice configuration
* @lock: mutex associated with each slice
* @cfg_size: size of the config data table
* @max_slices: max slices as read from device tree
* @num_banks: Number of llcc banks
* @bitmap: Bit map to track the active slice ids
* @offsets: Pointer to the bank offsets array
* @ecc_irq: interrupt for llcc cache error detection and reporting
*/
struct llcc_drv_data {
struct regmap *regmap;
struct regmap *bcast_regmap;
const struct llcc_slice_config *cfg;
struct mutex lock;
u32 cfg_size;
u32 max_slices;
u32 num_banks;
unsigned long *bitmap;
u32 *offsets;
int ecc_irq;
};
/**
* llcc_edac_reg_data - llcc edac registers data for each error type
* @name: Name of the error
* @synd_reg: Syndrome register address
* @count_status_reg: Status register address to read the error count
* @ways_status_reg: Status register address to read the error ways
* @reg_cnt: Number of registers
* @count_mask: Mask value to get the error count
* @ways_mask: Mask value to get the error ways
* @count_shift: Shift value to get the error count
* @ways_shift: Shift value to get the error ways
*/
struct llcc_edac_reg_data {
char *name;
u64 synd_reg;
u64 count_status_reg;
u64 ways_status_reg;
u32 reg_cnt;
u32 count_mask;
u32 ways_mask;
u8 count_shift;
u8 ways_shift;
};
#if IS_ENABLED(CONFIG_QCOM_LLCC)
/**
* llcc_slice_getd - get llcc slice descriptor
* @uid: usecase_id of the client
*/
struct llcc_slice_desc *llcc_slice_getd(u32 uid);
/**
* llcc_slice_putd - llcc slice descritpor
* @desc: Pointer to llcc slice descriptor
*/
void llcc_slice_putd(struct llcc_slice_desc *desc);
/**
* llcc_get_slice_id - get slice id
* @desc: Pointer to llcc slice descriptor
*/
int llcc_get_slice_id(struct llcc_slice_desc *desc);
/**
* llcc_get_slice_size - llcc slice size
* @desc: Pointer to llcc slice descriptor
*/
size_t llcc_get_slice_size(struct llcc_slice_desc *desc);
/**
* llcc_slice_activate - Activate the llcc slice
* @desc: Pointer to llcc slice descriptor
*/
int llcc_slice_activate(struct llcc_slice_desc *desc);
/**
* llcc_slice_deactivate - Deactivate the llcc slice
* @desc: Pointer to llcc slice descriptor
*/
int llcc_slice_deactivate(struct llcc_slice_desc *desc);
#else
static inline struct llcc_slice_desc *llcc_slice_getd(u32 uid)
{
return NULL;
}
static inline void llcc_slice_putd(struct llcc_slice_desc *desc)
{
};
static inline int llcc_get_slice_id(struct llcc_slice_desc *desc)
{
return -EINVAL;
}
static inline size_t llcc_get_slice_size(struct llcc_slice_desc *desc)
{
return 0;
}
static inline int llcc_slice_activate(struct llcc_slice_desc *desc)
{
return -EINVAL;
}
static inline int llcc_slice_deactivate(struct llcc_slice_desc *desc)
{
return -EINVAL;
}
#endif
#endif
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