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