253 lines
7.1 KiB
C
253 lines
7.1 KiB
C
/* Copyright (c) 2013-2015, 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_SMEM_H_
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#define _ARCH_ARM_MACH_MSM_SMEM_H_
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#include <linux/types.h>
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enum {
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SMEM_APPS,
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SMEM_MODEM,
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SMEM_Q6,
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SMEM_DSPS,
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SMEM_WCNSS,
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SMEM_MODEM_Q6_FW,
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SMEM_RPM,
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SMEM_TZ,
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SMEM_SPSS,
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SMEM_HYP,
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NUM_SMEM_SUBSYSTEMS,
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};
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/*
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* Flag options for the XXX_to_proc() API
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*
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* SMEM_ITEM_CACHED_FLAG - Indicates this operation should use cachable smem
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*
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* SMEM_ANY_HOST_FLAG - Indicates this operation should not apply to smem items
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* which are limited to a specific host pairing. Will
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* cause this operation to ignore the to_proc parameter.
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*/
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#define SMEM_ITEM_CACHED_FLAG 1
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#define SMEM_ANY_HOST_FLAG 2
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#define SMEM_NUM_SMD_STREAM_CHANNELS 64
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/**
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* OVERFLOW_ADD_UNSIGNED() - check for unsigned overflow
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*
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* @type: type to check for overflow
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* @a: left value to use
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* @b: right value to use
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* @returns: true if a + b will result in overflow; false otherwise
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*/
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#define OVERFLOW_ADD_UNSIGNED(type, a, b) \
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(((type)~0 - (a)) < (b) ? true : false)
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enum {
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/* fixed items */
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SMEM_PROC_COMM = 0,
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SMEM_HEAP_INFO,
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SMEM_ALLOCATION_TABLE,
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SMEM_VERSION_INFO,
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SMEM_HW_RESET_DETECT,
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SMEM_AARM_WARM_BOOT,
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SMEM_DIAG_ERR_MESSAGE,
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SMEM_SPINLOCK_ARRAY,
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SMEM_MEMORY_BARRIER_LOCATION,
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SMEM_FIXED_ITEM_LAST = SMEM_MEMORY_BARRIER_LOCATION,
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/* dynamic items */
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SMEM_AARM_PARTITION_TABLE,
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SMEM_AARM_BAD_BLOCK_TABLE,
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SMEM_ERR_CRASH_LOG_ADSP,
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SMEM_WM_UUID,
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SMEM_CHANNEL_ALLOC_TBL,
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SMEM_SMD_BASE_ID,
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SMEM_SMEM_LOG_IDX = SMEM_SMD_BASE_ID + SMEM_NUM_SMD_STREAM_CHANNELS,
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SMEM_SMEM_LOG_EVENTS,
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SMEM_SMEM_STATIC_LOG_IDX,
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SMEM_SMEM_STATIC_LOG_EVENTS,
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SMEM_SMEM_SLOW_CLOCK_SYNC,
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SMEM_SMEM_SLOW_CLOCK_VALUE,
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SMEM_BIO_LED_BUF,
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SMEM_SMSM_SHARED_STATE,
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SMEM_SMSM_INT_INFO,
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SMEM_SMSM_SLEEP_DELAY,
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SMEM_SMSM_LIMIT_SLEEP,
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SMEM_SLEEP_POWER_COLLAPSE_DISABLED,
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SMEM_KEYPAD_KEYS_PRESSED,
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SMEM_KEYPAD_STATE_UPDATED,
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SMEM_KEYPAD_STATE_IDX,
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SMEM_GPIO_INT,
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SMEM_MDDI_LCD_IDX,
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SMEM_MDDI_HOST_DRIVER_STATE,
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SMEM_MDDI_LCD_DISP_STATE,
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SMEM_LCD_CUR_PANEL,
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SMEM_MARM_BOOT_SEGMENT_INFO,
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SMEM_AARM_BOOT_SEGMENT_INFO,
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SMEM_SLEEP_STATIC,
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SMEM_SCORPION_FREQUENCY,
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SMEM_SMD_PROFILES,
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SMEM_TSSC_BUSY,
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SMEM_HS_SUSPEND_FILTER_INFO,
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SMEM_BATT_INFO,
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SMEM_APPS_BOOT_MODE,
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SMEM_VERSION_FIRST,
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SMEM_VERSION_SMD = SMEM_VERSION_FIRST,
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SMEM_VERSION_LAST = SMEM_VERSION_FIRST + 24,
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SMEM_OSS_RRCASN1_BUF1,
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SMEM_OSS_RRCASN1_BUF2,
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SMEM_ID_VENDOR0,
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SMEM_ID_VENDOR1,
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SMEM_ID_VENDOR2,
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SMEM_HW_SW_BUILD_ID,
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SMEM_SMD_BASE_ID_2,
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SMEM_SMD_FIFO_BASE_ID_2 = SMEM_SMD_BASE_ID_2 +
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SMEM_NUM_SMD_STREAM_CHANNELS,
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SMEM_CHANNEL_ALLOC_TBL_2 = SMEM_SMD_FIFO_BASE_ID_2 +
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SMEM_NUM_SMD_STREAM_CHANNELS,
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SMEM_I2C_MUTEX = SMEM_CHANNEL_ALLOC_TBL_2 +
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SMEM_NUM_SMD_STREAM_CHANNELS,
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SMEM_SCLK_CONVERSION,
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SMEM_SMD_SMSM_INTR_MUX,
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SMEM_SMSM_CPU_INTR_MASK,
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SMEM_APPS_DEM_SLAVE_DATA,
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SMEM_QDSP6_DEM_SLAVE_DATA,
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SMEM_VSENSE_DATA,
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SMEM_CLKREGIM_SOURCES,
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SMEM_SMD_FIFO_BASE_ID,
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SMEM_USABLE_RAM_PARTITION_TABLE = SMEM_SMD_FIFO_BASE_ID +
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SMEM_NUM_SMD_STREAM_CHANNELS,
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SMEM_POWER_ON_STATUS_INFO,
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SMEM_DAL_AREA,
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SMEM_SMEM_LOG_POWER_IDX,
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SMEM_SMEM_LOG_POWER_WRAP,
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SMEM_SMEM_LOG_POWER_EVENTS,
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SMEM_ERR_CRASH_LOG,
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SMEM_ERR_F3_TRACE_LOG,
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SMEM_SMD_BRIDGE_ALLOC_TABLE,
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SMEM_SMDLITE_TABLE,
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SMEM_SD_IMG_UPGRADE_STATUS,
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SMEM_SEFS_INFO,
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SMEM_RESET_LOG,
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SMEM_RESET_LOG_SYMBOLS,
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SMEM_MODEM_SW_BUILD_ID,
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SMEM_SMEM_LOG_MPROC_WRAP,
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SMEM_BOOT_INFO_FOR_APPS,
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SMEM_SMSM_SIZE_INFO,
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SMEM_SMD_LOOPBACK_REGISTER,
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SMEM_SSR_REASON_MSS0,
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SMEM_SSR_REASON_WCNSS0,
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SMEM_SSR_REASON_LPASS0,
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SMEM_SSR_REASON_DSPS0,
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SMEM_SSR_REASON_VCODEC0,
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SMEM_SMP2P_APPS_BASE = 427,
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SMEM_SMP2P_MODEM_BASE = SMEM_SMP2P_APPS_BASE + 8, /* 435 */
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SMEM_SMP2P_AUDIO_BASE = SMEM_SMP2P_MODEM_BASE + 8, /* 443 */
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SMEM_SMP2P_WIRLESS_BASE = SMEM_SMP2P_AUDIO_BASE + 8, /* 451 */
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SMEM_SMP2P_POWER_BASE = SMEM_SMP2P_WIRLESS_BASE + 8, /* 459 */
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SMEM_FLASH_DEVICE_INFO = SMEM_SMP2P_POWER_BASE + 8, /* 467 */
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SMEM_BAM_PIPE_MEMORY, /* 468 */
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SMEM_IMAGE_VERSION_TABLE, /* 469 */
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SMEM_LC_DEBUGGER, /* 470 */
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SMEM_FLASH_NAND_DEV_INFO, /* 471 */
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SMEM_A2_BAM_DESCRIPTOR_FIFO, /* 472 */
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SMEM_CPR_CONFIG, /* 473 */
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SMEM_CLOCK_INFO, /* 474 */
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SMEM_IPC_FIFO, /* 475 */
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SMEM_RF_EEPROM_DATA, /* 476 */
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SMEM_COEX_MDM_WCN, /* 477 */
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SMEM_GLINK_NATIVE_XPRT_DESCRIPTOR, /* 478 */
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SMEM_GLINK_NATIVE_XPRT_FIFO_0, /* 479 */
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SMEM_GLINK_NATIVE_XPRT_FIFO_1, /* 480 */
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SMEM_SMP2P_SENSOR_BASE, /* 481 */
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SMEM_SMP2P_TZ_BASE = SMEM_SMP2P_SENSOR_BASE + 8, /* 489 */
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SMEM_IPA_FILTER_TABLE = SMEM_SMP2P_TZ_BASE + 8, /* 497 */
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SMEM_NUM_ITEMS, /* 498 */
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};
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#ifdef CONFIG_MSM_SMEM
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void *smem_alloc(unsigned id, unsigned size_in, unsigned to_proc,
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unsigned flags);
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void *smem_find(unsigned id, unsigned size_in, unsigned to_proc,
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unsigned flags);
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void *smem_get_entry(unsigned id, unsigned *size, unsigned to_proc,
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unsigned flags);
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/**
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* smem_get_entry_no_rlock - Get existing item without using remote spinlock
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*
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* @id: ID of SMEM item
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* @size_out: Pointer to size variable for storing the result
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* @to_proc: SMEM host that shares the item with apps
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* @flags: Item attribute flags
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* @returns: Pointer to SMEM item or NULL if it doesn't exist
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*
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* This function does not lock the remote spinlock and should only be used in
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* failure-recover cases such as retrieving the subsystem failure reason during
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* subsystem restart.
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*/
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void *smem_get_entry_no_rlock(unsigned id, unsigned *size_out, unsigned to_proc,
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unsigned flags);
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/**
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* smem_virt_to_phys() - Convert SMEM address to physical address.
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*
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* @smem_address: Virtual address returned by smem_alloc()
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* @returns: Physical address (or NULL if there is a failure)
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*
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* This function should only be used if an SMEM item needs to be handed
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* off to a DMA engine.
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*/
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phys_addr_t smem_virt_to_phys(void *smem_address);
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/**
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* SMEM initialization function that registers for a SMEM platform driver.
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*
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* @returns: success on successful driver registration.
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*/
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int __init msm_smem_init(void);
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#else
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static inline void *smem_alloc(unsigned id, unsigned size_in, unsigned to_proc,
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unsigned flags)
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{
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return NULL;
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}
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static inline void *smem_find(unsigned id, unsigned size_in,
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unsigned to_proc, unsigned flags)
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{
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return NULL;
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}
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static inline void *smem_get_entry(unsigned id, unsigned *size,
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unsigned to_proc, unsigned flags)
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{
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return NULL;
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}
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static inline void *smem_get_entry_no_rlock(unsigned id, unsigned *size_out,
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unsigned to_proc, unsigned flags)
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{
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return NULL;
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}
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static inline phys_addr_t smem_virt_to_phys(void *smem_address)
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{
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return (phys_addr_t) NULL;
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}
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static inline int __init msm_smem_init(void)
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{
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return 0;
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}
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#endif /* CONFIG_MSM_SMEM */
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#endif /* _ARCH_ARM_MACH_MSM_SMEM_H_ */
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