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/* Copyright (c) 2012-2014, The Linux Foundation. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 and
* only version 2 as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*/
#ifndef _ARCH_ARM_MACH_MSM_OCMEM_PRIV_H
#define _ARCH_ARM_MACH_MSM_OCMEM_PRIV_H
/** All interfaces in this header should only be used by OCMEM driver
* Client drivers should use wrappers available in ocmem.h
**/
#include <linux/platform_device.h>
#include <linux/clk.h>
#include <asm/io.h>
#include <soc/qcom/ocmem.h>
#define OCMEM_PHYS_BASE 0xFEC00000
#define OCMEM_PHYS_SIZE 0x180000
#define TO_OCMEM 0x0
#define TO_DDR 0x1
#define OCMEM_SVC_ID 15
#define OCMEM_LOCK_CMD_ID 0x1
#define OCMEM_UNLOCK_CMD_ID 0x2
#define OCMEM_ENABLE_DUMP_CMD_ID 0x3
#define OCMEM_DISABLE_DUMP_CMD_ID 0x4
#define OCMEM_SECURE_SVC_ID 12
#define OCMEM_SECURE_CFG_ID 0x2
#define OCMEM_SECURE_DEV_ID 0x5
struct ocmem_zone;
struct ocmem_zone_ops {
int (*allocate) (struct ocmem_zone *, unsigned long, unsigned long *);
int (*free) (struct ocmem_zone *, unsigned long, unsigned long);
};
/* OCMEM Zone specific counters */
/* Must be in sync with zstat_names */
enum ocmem_zstat_item {
NR_REQUESTS = 0x0,
NR_SYNC_ALLOCATIONS,
NR_RANGE_ALLOCATIONS,
NR_ASYNC_ALLOCATIONS,
NR_ALLOCATION_FAILS,
NR_GROWTHS,
NR_FREES,
NR_SHRINKS,
NR_MAPS,
NR_MAP_FAILS,
NR_UNMAPS,
NR_UNMAP_FAILS,
NR_TRANSFERS_TO_OCMEM,
NR_TRANSFERS_TO_DDR,
NR_TRANSFER_FAILS,
NR_EVICTIONS,
NR_RESTORES,
NR_DUMP_REQUESTS,
NR_DUMP_COMPLETE,
NR_OCMEM_ZSTAT_ITEMS,
};
struct ocmem_zone {
bool active;
int owner;
int active_regions;
int max_regions;
struct list_head req_list;
unsigned long z_start;
unsigned long z_end;
unsigned long z_head;
unsigned long z_tail;
unsigned long z_free;
atomic_long_t z_stat[NR_OCMEM_ZSTAT_ITEMS];
struct gen_pool *z_pool;
struct ocmem_zone_ops *z_ops;
unsigned int max_alloc_time;
unsigned int min_alloc_time;
u64 total_alloc_time;
unsigned int max_free_time;
unsigned int min_free_time;
u64 total_free_time;
};
enum op_code {
SCHED_NOP = 0x0,
SCHED_ALLOCATE,
SCHED_FREE,
SCHED_GROW,
SCHED_SHRINK,
SCHED_MAP,
SCHED_UNMAP,
SCHED_EVICT,
SCHED_RESTORE,
SCHED_DUMP,
};
/* Operational modes of each region */
enum region_mode {
WIDE_MODE = 0x0,
THIN_MODE,
MODE_DEFAULT = WIDE_MODE,
};
struct ocmem_plat_data {
void __iomem *vbase;
unsigned long size;
unsigned long base;
struct clk *core_clk;
struct clk *iface_clk;
struct clk *br_clk;
struct ocmem_partition *parts;
int nr_parts;
void __iomem *reg_base;
void __iomem *br_base;
void __iomem *dm_base;
struct dentry *debug_node;
unsigned nr_regions;
unsigned nr_macros;
unsigned nr_ports;
int ocmem_irq;
int dm_irq;
bool interleaved;
bool rpm_pwr_ctrl;
unsigned rpm_rsc_type;
};
struct ocmem_eviction_data {
struct completion completion;
struct list_head victim_list;
struct list_head req_list;
struct work_struct work;
int prio;
atomic_t pending;
bool passive;
};
struct ocmem_req {
struct rw_semaphore rw_sem;
/* Chain in sched queue */
struct list_head sched_list;
/* Chain in zone list */
struct list_head zone_list;
/* Chain in eviction list */
struct list_head eviction_list;
int owner;
int prio;
uint32_t req_id;
unsigned long req_min;
unsigned long req_max;
unsigned long req_step;
/* reverse pointers */
struct ocmem_zone *zone;
struct ocmem_buf *buffer;
struct ocmem_map_list *mlist;
enum op_code op;
unsigned long state;
/* Request assignments */
unsigned long req_start;
unsigned long req_end;
unsigned long req_sz;
/* Request Power State */
unsigned power_state;
struct ocmem_eviction_data *edata;
/* Eviction data of the request being evicted */
struct ocmem_eviction_data *eviction_info;
};
struct ocmem_handle {
struct ocmem_buf buffer;
struct mutex handle_mutex;
struct ocmem_req *req;
};
struct ocmem_buf *handle_to_buffer(struct ocmem_handle *);
struct ocmem_handle *buffer_to_handle(struct ocmem_buf *);
struct ocmem_req *handle_to_req(struct ocmem_handle *);
struct ocmem_handle *req_to_handle(struct ocmem_req *);
int ocmem_read(void *);
int ocmem_write(unsigned long, void *);
void inc_ocmem_stat(struct ocmem_zone *, enum ocmem_zstat_item);
unsigned long get_ocmem_stat(struct ocmem_zone *z,
enum ocmem_zstat_item item);
struct ocmem_zone *get_zone(unsigned);
int zone_active(int);
unsigned long offset_to_phys(unsigned long);
unsigned long phys_to_offset(unsigned long);
int allocate_head(struct ocmem_zone *, unsigned long, unsigned long *);
int free_head(struct ocmem_zone *, unsigned long, unsigned long);
int allocate_tail(struct ocmem_zone *, unsigned long, unsigned long *);
int free_tail(struct ocmem_zone *, unsigned long, unsigned long);
int ocmem_notifier_init(void);
int check_notifier(int);
const char *get_name(int);
int get_tz_id(int);
int ocmem_restore_sec_program(int);
int ocmem_enable_dump(enum ocmem_client, unsigned long, unsigned long);
int ocmem_disable_dump(enum ocmem_client, unsigned long, unsigned long);
bool is_probe_done(void);
int check_id(int);
int dispatch_notification(int, enum ocmem_notif_type, struct ocmem_buf *);
int ocmem_sched_init(struct platform_device *);
int ocmem_rdm_init(struct platform_device *);
int ocmem_core_init(struct platform_device *);
int process_allocate(int, struct ocmem_handle *, unsigned long, unsigned long,
unsigned long, bool, bool);
int process_free(int, struct ocmem_handle *);
int process_xfer(int, struct ocmem_handle *, struct ocmem_map_list *, int);
int process_drop(int, struct ocmem_handle *, struct ocmem_map_list *);
int process_evict(int);
int process_restore(int);
int process_shrink(int, struct ocmem_handle *, unsigned long);
int process_dump(int, struct ocmem_handle *, unsigned long);
int ocmem_rdm_transfer(int, struct ocmem_map_list *,
unsigned long, int);
unsigned long process_quota(int);
int ocmem_memory_off(int, unsigned long, unsigned long);
int ocmem_memory_on(int, unsigned long, unsigned long);
int ocmem_enable_core_clock(void);
int ocmem_enable_iface_clock(void);
int ocmem_enable_br_clock(void);
void ocmem_disable_core_clock(void);
void ocmem_disable_iface_clock(void);
void ocmem_disable_br_clock(void);
int ocmem_lock(enum ocmem_client, unsigned long, unsigned long,
enum region_mode);
int ocmem_unlock(enum ocmem_client, unsigned long, unsigned long);
#endif
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