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From 7720663aca3ed9b1ecb3a9db8f463b285ed42ba8 Mon Sep 17 00:00:00 2001
From: popcornmix <popcornmix@gmail.com>
Date: Thu, 5 Dec 2013 16:42:37 +0000
Subject: [PATCH 113/174] config: Add BCACHE

---
 arch/arm/configs/bcmrpi_defconfig | 1 +
 1 file changed, 1 insertion(+)

--- a/arch/arm/configs/bcmrpi_defconfig
+++ b/arch/arm/configs/bcmrpi_defconfig
@@ -397,6 +397,7 @@ CONFIG_ISCSI_BOOT_SYSFS=m
 CONFIG_MD=y
 CONFIG_MD_LINEAR=m
 CONFIG_MD_RAID0=m
+CONFIG_BCACHE=m
 CONFIG_BLK_DEV_DM=m
 CONFIG_DM_CRYPT=m
 CONFIG_DM_SNAPSHOT=m
generated by cgit v1.2.3 (git 2.25.1) at 2025-03-10 22:43:06 +0000
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/*
    ChibiOS - Copyright (C) 2006..2015 Giovanni Di Sirio.

    This file is part of ChibiOS.

    ChibiOS is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation; either version 3 of the License, or
    (at your option) any later version.

    ChibiOS 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.

    You should have received a copy of the GNU General Public License
    along with this program.  If not, see <http://www.gnu.org/licenses/>.
*/

/**
 * @file    chdynamic.c
 * @brief   Dynamic threads code.
 *
 * @addtogroup dynamic_threads
 * @details Dynamic threads related APIs and services.
 * @note    Compatible with RT only.
 * @{
 */

#include "ch.h"

#if (CH_CFG_USE_DYNAMIC == TRUE) || defined(__DOXYGEN__)

/*===========================================================================*/
/* Module local definitions.                                                 */
/*===========================================================================*/

/*===========================================================================*/
/* Module exported variables.                                                */
/*===========================================================================*/

/*===========================================================================*/
/* Module local types.                                                       */
/*===========================================================================*/

/*===========================================================================*/
/* Module local variables.                                                   */
/*===========================================================================*/

/*===========================================================================*/
/* Module local functions.                                                   */
/*===========================================================================*/

/*===========================================================================*/
/* Module exported functions.                                                */
/*===========================================================================*/

#if (CH_CFG_USE_HEAP == TRUE) || defined(__DOXYGEN__)
/**
 * @brief   Creates a new thread allocating the memory from the heap.
 * @pre     The configuration options @p CH_CFG_USE_DYNAMIC and
 *          @p CH_CFG_USE_HEAP must be enabled in order to use this function.
 * @note    A thread can terminate by calling @p chThdExit() or by simply
 *          returning from its main function.
 * @note    The memory allocated for the thread is not released automatically,
 *          it is responsibility of the creator thread to call @p chThdWait()
 *          and then release the allocated memory.
 *
 * @param[in] heapp     heap from which allocate the memory or @p NULL for the
 *                      default heap
 * @param[in] size      size of the working area to be allocated
 * @param[in] name      thread name
 * @param[in] prio      the priority level for the new thread
 * @param[in] pf        the thread function
 * @param[in] arg       an argument passed to the thread function. It can be
 *                      @p NULL.
 * @return              The pointer to the @p thread_t structure allocated for
 *                      the thread into the working space area.
 * @retval NULL         if the memory cannot be allocated.
 *
 * @api
 */
thread_t *chThdCreateFromHeap(memory_heap_t *heapp, size_t size,
                              const char *name, tprio_t prio,
                              tfunc_t pf, void *arg) {
  void *wsp;

  wsp = chHeapAllocAligned(heapp, size, PORT_WORKING_AREA_ALIGN);
  if (wsp == NULL) {
    return NULL;
  }

  thread_descriptor_t td = {
    name,
    wsp,
    (stkalign_t *)((uint8_t *)wsp + size),
    prio,
    pf,
    arg
  };

  return chThdCreate(&td);
}

/**
 * @brief   Releases a thread working area into the owner heap.
 * @pre     The thread must have been created using @p chThdCreateFromHeap().
 * @pre     The thread must be in the state @p CH_STATE_FINAL (terminated).
 *
 * @param[in] tp        the pointer to the thread
 *
 * @api
 */
void chThdFreeToHeap(thread_t *tp) {

  chDbgCheck(tp != NULL);
  chDbgAssert(tp->state == CH_STATE_FINAL, "not terminated");

  chHeapFree(chthdGetStackLimitX(tp));
}
#endif /* CH_CFG_USE_HEAP == TRUE */

#if (CH_CFG_USE_MEMPOOLS == TRUE) || defined(__DOXYGEN__)
/**
 * @brief   Creates a new thread allocating the memory from the specified
 *          memory pool.
 * @pre     The configuration options @p CH_CFG_USE_DYNAMIC and
 *          @p CH_CFG_USE_MEMPOOLS must be enabled in order to use this
 *          function.
 * @pre     The pool must be initialized to contain only objects with
 *          alignment @p PORT_WORKING_AREA_ALIGN.
 * @note    A thread can terminate by calling @p chThdExit() or by simply
 *          returning from its main function.
 * @note    The memory allocated for the thread is not released automatically,
 *          it is responsibility of the creator thread to call @p chThdWait()
 *          and then release the allocated memory.
 *
 * @param[in] mp        pointer to the memory pool object
 * @param[in] name      thread name
 * @param[in] prio      the priority level for the new thread
 * @param[in] pf        the thread function
 * @param[in] arg       an argument passed to the thread function. It can be
 *                      @p NULL.
 * @return              The pointer to the @p thread_t structure allocated for
 *                      the thread into the working space area.
 * @retval  NULL        if the memory pool is empty.
 *
 * @api
 */
thread_t *chThdCreateFromMemoryPool(memory_pool_t *mp, const char *name,
                                    tprio_t prio, tfunc_t pf, void *arg) {
  void *wsp;

  chDbgCheck(mp != NULL);

  wsp = chPoolAlloc(mp);
  if (wsp == NULL) {
    return NULL;
  }

  thread_descriptor_t td = {
    name,
    wsp,
    (stkalign_t *)((uint8_t *)wsp + mp->object_size),
    prio,
    pf,
    arg
  };

  return chThdCreate(&td);
}

/**
 * @brief   Releases a thread working area into a memory pool.
 * @pre     The thread must have been created using @p chThdCreateFromMemoryPool().
 * @pre     The thread must be in the state @p CH_STATE_FINAL (terminated).
 *
 * @param[in] tp        the pointer to the thread
 * @param[in] mp        pointer to a @p memory_pool_t structure
 *
 * @api
 */
void chThdFreeToMemoryPool(thread_t *tp, memory_pool_t *mp) {

  chDbgCheck((tp != NULL) && (mp != NULL));
  chDbgAssert(tp->state == CH_STATE_FINAL, "not terminated");

  chPoolFree(mp, (void *)chthdGetStackLimitX(tp));
}
#endif /* CH_CFG_USE_MEMPOOLS == TRUE */

#endif /* CH_CFG_USE_DYNAMIC == TRUE */

/** @} */
generated by cgit v1.2.3 (git 2.25.1) at 2025-03-10 22:43:06 +0000