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/* Copyright (c) 2013-2016, 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_SMEM_H_
#define _ARCH_ARM_MACH_MSM_SMEM_H_
#include <linux/types.h>
enum {
SMEM_APPS,
SMEM_MODEM,
SMEM_Q6,
SMEM_DSPS,
SMEM_WCNSS,
SMEM_MODEM_Q6_FW,
SMEM_CDSP = SMEM_MODEM_Q6_FW,
SMEM_RPM,
SMEM_TZ,
SMEM_SPSS,
SMEM_HYP,
NUM_SMEM_SUBSYSTEMS,
};
/*
* Flag options for the XXX_to_proc() API
*
* SMEM_ITEM_CACHED_FLAG - Indicates this operation should use cachable smem
*
* SMEM_ANY_HOST_FLAG - Indicates this operation should not apply to smem items
* which are limited to a specific host pairing. Will
* cause this operation to ignore the to_proc parameter.
*/
#define SMEM_ITEM_CACHED_FLAG 1
#define SMEM_ANY_HOST_FLAG 2
#define SMEM_NUM_SMD_STREAM_CHANNELS 64
/**
* OVERFLOW_ADD_UNSIGNED() - check for unsigned overflow
*
* @type: type to check for overflow
* @a: left value to use
* @b: right value to use
* @returns: true if a + b will result in overflow; false otherwise
*/
#define OVERFLOW_ADD_UNSIGNED(type, a, b) \
(((type)~0 - (a)) < (b) ? true : false)
enum {
/* fixed items */
SMEM_PROC_COMM = 0,
SMEM_HEAP_INFO,
SMEM_ALLOCATION_TABLE,
SMEM_VERSION_INFO,
SMEM_HW_RESET_DETECT,
SMEM_AARM_WARM_BOOT,
SMEM_DIAG_ERR_MESSAGE,
SMEM_SPINLOCK_ARRAY,
SMEM_MEMORY_BARRIER_LOCATION,
SMEM_FIXED_ITEM_LAST = SMEM_MEMORY_BARRIER_LOCATION,
/* dynamic items */
SMEM_AARM_PARTITION_TABLE,
SMEM_AARM_BAD_BLOCK_TABLE,
SMEM_ERR_CRASH_LOG_ADSP,
SMEM_WM_UUID,
SMEM_CHANNEL_ALLOC_TBL,
SMEM_SMD_BASE_ID,
SMEM_SMEM_LOG_IDX = SMEM_SMD_BASE_ID + SMEM_NUM_SMD_STREAM_CHANNELS,
SMEM_SMEM_LOG_EVENTS,
SMEM_XBL_LOADER_CORE_INFO,
SMEM_SMEM_STATIC_LOG_EVENTS,
SMEM_CHARGER_BATTERY_INFO = SMEM_SMEM_STATIC_LOG_EVENTS,
SMEM_SMEM_SLOW_CLOCK_SYNC,
SMEM_WLAN_CONFIG = SMEM_SMEM_SLOW_CLOCK_SYNC,
SMEM_SMEM_SLOW_CLOCK_VALUE,
SMEM_BIO_LED_BUF,
SMEM_SMSM_SHARED_STATE,
SMEM_SMSM_INT_INFO,
SMEM_SMSM_SLEEP_DELAY,
SMEM_SMSM_LIMIT_SLEEP,
SMEM_SLEEP_POWER_COLLAPSE_DISABLED,
SMEM_KEYPAD_KEYS_PRESSED,
SMEM_KEYPAD_STATE_UPDATED,
SMEM_KEYPAD_STATE_IDX,
SMEM_GPIO_INT,
SMEM_SMP2P_CDSP_BASE,
SMEM_SMD_PROFILES = SMEM_SMP2P_CDSP_BASE + 8,
SMEM_TSSC_BUSY,
SMEM_HS_SUSPEND_FILTER_INFO,
SMEM_BATT_INFO,
SMEM_APPS_BOOT_MODE,
SMEM_VERSION_FIRST,
SMEM_VERSION_SMD = SMEM_VERSION_FIRST,
SMEM_VERSION_LAST = SMEM_VERSION_FIRST + 24,
SMEM_OSS_RRCASN1_BUF1,
SMEM_OSS_RRCASN1_BUF2,
SMEM_ID_VENDOR0,
SMEM_ID_VENDOR1,
SMEM_ID_VENDOR2,
SMEM_HW_SW_BUILD_ID,
SMEM_SMD_BASE_ID_2,
SMEM_SMD_FIFO_BASE_ID_2 = SMEM_SMD_BASE_ID_2 +
SMEM_NUM_SMD_STREAM_CHANNELS,
SMEM_CHANNEL_ALLOC_TBL_2 = SMEM_SMD_FIFO_BASE_ID_2 +
SMEM_NUM_SMD_STREAM_CHANNELS,
SMEM_I2C_MUTEX = SMEM_CHANNEL_ALLOC_TBL_2 +
SMEM_NUM_SMD_STREAM_CHANNELS,
SMEM_SCLK_CONVERSION,
SMEM_SMD_SMSM_INTR_MUX,
SMEM_SMSM_CPU_INTR_MASK,
SMEM_APPS_DEM_SLAVE_DATA,
SMEM_QDSP6_DEM_SLAVE_DATA,
SMEM_VSENSE_DATA,
SMEM_CLKREGIM_SOURCES,
SMEM_SMD_FIFO_BASE_ID,
SMEM_USABLE_RAM_PARTITION_TABLE = SMEM_SMD_FIFO_BASE_ID +
SMEM_NUM_SMD_STREAM_CHANNELS,
SMEM_POWER_ON_STATUS_INFO,
SMEM_DAL_AREA,
SMEM_SMEM_LOG_POWER_IDX,
SMEM_SMEM_LOG_POWER_WRAP,
SMEM_SMEM_LOG_POWER_EVENTS,
SMEM_ERR_CRASH_LOG,
SMEM_ERR_F3_TRACE_LOG,
SMEM_SMD_BRIDGE_ALLOC_TABLE,
SMEM_SMDLITE_TABLE,
SMEM_SD_IMG_UPGRADE_STATUS,
SMEM_SEFS_INFO,
SMEM_RESET_LOG,
SMEM_RESET_LOG_SYMBOLS,
SMEM_MODEM_SW_BUILD_ID,
SMEM_SMEM_LOG_MPROC_WRAP,
SMEM_BOOT_INFO_FOR_APPS,
SMEM_SMSM_SIZE_INFO,
SMEM_SMD_LOOPBACK_REGISTER,
SMEM_SSR_REASON_MSS0,
SMEM_SSR_REASON_WCNSS0,
SMEM_SSR_REASON_LPASS0,
SMEM_SSR_REASON_DSPS0,
SMEM_SSR_REASON_VCODEC0,
SMEM_SMP2P_APPS_BASE = 427,
SMEM_SMP2P_MODEM_BASE = SMEM_SMP2P_APPS_BASE + 8, /* 435 */
SMEM_SMP2P_AUDIO_BASE = SMEM_SMP2P_MODEM_BASE + 8, /* 443 */
SMEM_SMP2P_WIRLESS_BASE = SMEM_SMP2P_AUDIO_BASE + 8, /* 451 */
SMEM_SMP2P_POWER_BASE = SMEM_SMP2P_WIRLESS_BASE + 8, /* 459 */
SMEM_FLASH_DEVICE_INFO = SMEM_SMP2P_POWER_BASE + 8, /* 467 */
SMEM_BAM_PIPE_MEMORY, /* 468 */
SMEM_IMAGE_VERSION_TABLE, /* 469 */
SMEM_LC_DEBUGGER, /* 470 */
SMEM_FLASH_NAND_DEV_INFO, /* 471 */
SMEM_A2_BAM_DESCRIPTOR_FIFO, /* 472 */
SMEM_CPR_CONFIG, /* 473 */
SMEM_CLOCK_INFO, /* 474 */
SMEM_IPC_FIFO, /* 475 */
SMEM_RF_EEPROM_DATA, /* 476 */
SMEM_COEX_MDM_WCN, /* 477 */
SMEM_GLINK_NATIVE_XPRT_DESCRIPTOR, /* 478 */
SMEM_GLINK_NATIVE_XPRT_FIFO_0, /* 479 */
SMEM_GLINK_NATIVE_XPRT_FIFO_1, /* 480 */
SMEM_SMP2P_SENSOR_BASE, /* 481 */
SMEM_SMP2P_TZ_BASE = SMEM_SMP2P_SENSOR_BASE + 8, /* 489 */
SMEM_IPA_FILTER_TABLE = SMEM_SMP2P_TZ_BASE + 8, /* 497 */
SMEM_NUM_ITEMS, /* 498 */
};
#ifdef CONFIG_MSM_SMEM
void *smem_alloc(unsigned id, unsigned size_in, unsigned to_proc,
unsigned flags);
void *smem_find(unsigned id, unsigned size_in, unsigned to_proc,
unsigned flags);
void *smem_get_entry(unsigned id, unsigned *size, unsigned to_proc,
unsigned flags);
/**
* smem_get_entry_no_rlock - Get existing item without using remote spinlock
*
* @id: ID of SMEM item
* @size_out: Pointer to size variable for storing the result
* @to_proc: SMEM host that shares the item with apps
* @flags: Item attribute flags
* @returns: Pointer to SMEM item or NULL if it doesn't exist
*
* This function does not lock the remote spinlock and should only be used in
* failure-recover cases such as retrieving the subsystem failure reason during
* subsystem restart.
*/
void *smem_get_entry_no_rlock(unsigned id, unsigned *size_out, unsigned to_proc,
unsigned flags);
/**
* smem_virt_to_phys() - Convert SMEM address to physical address.
*
* @smem_address: Virtual address returned by smem_alloc()
* @returns: Physical address (or NULL if there is a failure)
*
* This function should only be used if an SMEM item needs to be handed
* off to a DMA engine.
*/
phys_addr_t smem_virt_to_phys(void *smem_address);
/**
* SMEM initialization function that registers for a SMEM platform driver.
*
* @returns: success on successful driver registration.
*/
int __init msm_smem_init(void);
#else
static inline void *smem_alloc(unsigned id, unsigned size_in, unsigned to_proc,
unsigned flags)
{
return NULL;
}
static inline void *smem_find(unsigned id, unsigned size_in,
unsigned to_proc, unsigned flags)
{
return NULL;
}
static inline void *smem_get_entry(unsigned id, unsigned *size,
unsigned to_proc, unsigned flags)
{
return NULL;
}
static inline void *smem_get_entry_no_rlock(unsigned id, unsigned *size_out,
unsigned to_proc, unsigned flags)
{
return NULL;
}
static inline phys_addr_t smem_virt_to_phys(void *smem_address)
{
return (phys_addr_t) NULL;
}
static inline int __init msm_smem_init(void)
{
return 0;
}
#endif /* CONFIG_MSM_SMEM */
#endif /* _ARCH_ARM_MACH_MSM_SMEM_H_ */
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