SAMV71-XULT: Add heap allocation logic
This commit is contained in:
Gregory Nutt
parent
b1cecdd3ea
commit
2571d6202d
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@ -68,7 +68,7 @@
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# define SAMV7_SRAM_SIZE (384*1024) /* 384KB */
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#else /* if defined(CONFIG_ARCH_CHIP_SAMV71Q21) */
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# define SAMV7_FLASH_SIZE (2048*1024) /* 2048KB */
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# define SAMV7_SRAM0_SIZE (384*1024) /* 384KB */
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# define SAMV7_SRAM_SIZE (384*1024) /* 384KB */
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#endif
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#define SAMV7_BSRAM_SIZE (1*1024) /* 1KB */
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@ -124,7 +124,7 @@
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# define SAMV7_SRAM_SIZE (384*1024) /* 384KB */
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#else /* if defined(CONFIG_ARCH_CHIP_SAMV71N21) */
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# define SAMV7_FLASH_SIZE (2048*1024) /* 2048KB */
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# define SAMV7_SRAM0_SIZE (384*1024) /* 384KB */
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# define SAMV7_SRAM_SIZE (384*1024) /* 384KB */
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#endif
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#define SAMV7_BSRAM_SIZE (1*1024) /* 1KB */
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@ -180,7 +180,7 @@
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# define SAMV7_SRAM_SIZE (384*1024) /* 384KB */
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#else /* if defined(CONFIG_ARCH_CHIP_SAMV71J21) */
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# define SAMV7_FLASH_SIZE (2048*1024) /* 2048KB */
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# define SAMV7_SRAM0_SIZE (384*1024) /* 384KB */
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# define SAMV7_SRAM_SIZE (384*1024) /* 384KB */
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#endif
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#define SAMV7_BSRAM_SIZE (1*1024) /* 1KB */
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@ -1,5 +1,5 @@
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/****************************************************************************
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* arch/arm/src/common/sam_allocateheap.c
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* arch/arm/src/sam34/sam_allocateheap.c
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*
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* Copyright (C) 2010, 2013, 2015 Gregory Nutt. All rights reserved.
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* Author: Gregory Nutt <gnutt@nuttx.org>
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@ -91,7 +91,7 @@ endif
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# Required SAM3/4 files
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CHIP_ASRCS =
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CHIP_CSRCS = sam_start.c sam_clockconfig.c sam_irq.c
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CHIP_CSRCS = sam_start.c sam_clockconfig.c sam_irq.c sam_allocateheap.c
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# Configuration-dependent SAM3/4 files
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@ -0,0 +1,345 @@
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/****************************************************************************
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* arch/arm/src/samv7/sam_allocateheap.c
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*
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* Copyright (C) 2015 Gregory Nutt. All rights reserved.
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* Author: Gregory Nutt <gnutt@nuttx.org>
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* 3. Neither the name NuttX nor the names of its contributors may be
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* used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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****************************************************************************/
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include <nuttx/config.h>
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#include <sys/types.h>
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#include <debug.h>
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#include <nuttx/arch.h>
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#include <nuttx/board.h>
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#include <nuttx/kmalloc.h>
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#include <arch/samv7/chip.h>
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#include <arch/board/board.h>
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#include "mpu.h"
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#include "up_arch.h"
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#include "up_internal.h"
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#include "sam_mpuinit.h"
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#include "sam_periphclks.h"
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/****************************************************************************
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* Private Definitions
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****************************************************************************/
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/* All SAM's have SRAM0.and possibly NFCSRAM. NFCSRAM may not be used,
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* however, if NAND support is enabled. External memory may also be
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* available.
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*
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* REVISIT: Support for external SRAM at CS1-3 is not fully implemented.
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*/
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#undef HAVE_NFCSRAM_REGION /* Assume no available NFC SRAM */
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#undef HAVE_EXTSRAM0_REGION /* Assume no external SRAM at CS0 */
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#undef HAVE_EXTSRAM1_REGION /* Assume no external SRAM at CS1 */
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#undef HAVE_EXTSRAM2_REGION /* Assume no external SRAM at CS2 */
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#undef HAVE_EXTSRAM3_REGION /* Assume no external SRAM at CS3 */
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/* Check if external SRAM is supported and, if so, it is is intended
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* to be used as heap.
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*/
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#if !defined(CONFIG_SAMV7_EXTSRAM0) || !defined(CONFIG_SAMV7_EXTSRAM0HEAP)
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# undef CONFIG_SAMV7_EXTSRAM0SIZE
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# define CONFIG_SAMV7_EXTSRAM0SIZE 0
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#endif
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#if !defined(CONFIG_SAMV7_EXTSRAM1) || !defined(CONFIG_SAMV7_EXTSRAM1HEAP)
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# undef CONFIG_SAMV7_EXTSRAM1SIZE
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# define CONFIG_SAMV7_EXTSRAM1SIZE 0
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#endif
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#if !defined(CONFIG_SAMV7_EXTSRAM2) || !defined(CONFIG_SAMV7_EXTSRAM2HEAP)
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# undef CONFIG_SAMV7_EXTSRAM2SIZE
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# define CONFIG_SAMV7_EXTSRAM2SIZE 0
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#endif
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#if !defined(CONFIG_SAMV7_EXTSRAM3) || !defined(CONFIG_SAMV7_EXTSRAM3HEAP)
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# undef CONFIG_SAMV7_EXTSRAM3SIZE
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# define CONFIG_SAMV7_EXTSRAM3SIZE 0
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#endif
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/* NFCSRAM is not available is NAND is supported */
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#ifdef CONFIG_SAMV7_NAND
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# undef SAMV7_NFCSRAM_SIZE
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# define SAMV7_NFCSRAM_SIZE 0
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#endif
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#if SAMV7_NFCSRAM_SIZE > 0
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# if CONFIG_MM_REGIONS > 2
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# define HAVE_NFCSRAM_REGION
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# else
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# warning "CONFIG_MM_REGIONS < 3: NFC SRAM not included in HEAP"
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# endif
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# if CONFIG_SAMV7_EXTSRAM0SIZE > 0
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# if CONFIG_MM_REGIONS > 3
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# define HAVE_EXTSRAM0_REGION 1
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# else
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# warning "CONFIG_MM_REGIONS < 4: External SRAM not included in HEAP"
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# endif
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# endif
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#elif CONFIG_SAMV7_EXTSRAM0SIZE > 0
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# if CONFIG_MM_REGIONS > 2
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# define HAVE_EXTSRAM0_REGION 1
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# else
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# warning "CONFIG_MM_REGIONS < 3: External SRAM not included in HEAP"
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# endif
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#endif
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/* Check internal SRAM configuration */
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#if CONFIG_RAM_END > (SAM_DTCM_BASE+SAMV7_SRAM_SIZE)
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# error "CONFIG_RAM_END is beyond the end of SRAM"
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# undef CONFIG_RAM_END
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# define CONFIG_RAM_END (SAM_DTCM_BASE+SAMV7_SRAM_SIZE)
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#elif CONFIG_RAM_END < (SAM_DTCM_BASE+SAMV7_SRAM_SIZE)
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# warning "CONFIG_RAM_END is before end of SRAM... not all of SRAM used"
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#endif
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/****************************************************************************
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* Private Data
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****************************************************************************/
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/****************************************************************************
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* Private Functions
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****************************************************************************/
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/****************************************************************************
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* Public Functions
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****************************************************************************/
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/****************************************************************************
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* Name: up_allocate_heap
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*
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* Description:
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* This function will be called to dynamically set aside the heap region.
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*
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* For the kernel build (CONFIG_BUILD_PROTECTED=y) with both kernel- and
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* user-space heaps (CONFIG_MM_KERNEL_HEAP=y), this function provides the
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* size of the unprotected, user-space heap.
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*
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* If a protected kernel-space heap is provided, the kernel heap must be
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* allocated (and protected) by an analogous up_allocate_kheap().
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*
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* The following memory map is assumed for the flat build:
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*
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* .data region. Size determined at link time.
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* .bss region Size determined at link time.
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* IDLE thread stack. Size determined by CONFIG_IDLETHREAD_STACKSIZE.
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* Heap. Extends to the end of SRAM.
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*
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* The following memory map is assumed for the kernel build:
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*
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* Kernel .data region. Size determined at link time.
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* Kernel .bss region Size determined at link time.
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* Kernel IDLE thread stack. Size determined by CONFIG_IDLETHREAD_STACKSIZE.
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* Padding for alignment
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* User .data region. Size determined at link time.
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* User .bss region Size determined at link time.
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* Kernel heap. Size determined by CONFIG_MM_KERNEL_HEAPSIZE.
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* User heap. Extends to the end of SRAM.
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*
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****************************************************************************/
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void up_allocate_heap(FAR void **heap_start, size_t *heap_size)
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{
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#if defined(CONFIG_BUILD_PROTECTED) && defined(CONFIG_MM_KERNEL_HEAP)
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/* Get the unaligned size and position of the user-space heap.
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* This heap begins after the user-space .bss section at an offset
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* of CONFIG_MM_KERNEL_HEAPSIZE (subject to alignment).
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*/
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uintptr_t ubase = (uintptr_t)USERSPACE->us_bssend + CONFIG_MM_KERNEL_HEAPSIZE;
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size_t usize = CONFIG_RAM_END - ubase;
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int log2;
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DEBUGASSERT(ubase < (uintptr_t)CONFIG_RAM_END);
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/* Adjust that size to account for MPU alignment requirements.
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* NOTE that there is an implicit assumption that the CONFIG_RAM_END
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* is aligned to the MPU requirement.
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*/
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log2 = (int)mpu_log2regionfloor(usize);
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DEBUGASSERT((CONFIG_RAM_END & ((1 << log2) - 1)) == 0);
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usize = (1 << log2);
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ubase = CONFIG_RAM_END - usize;
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/* Return the user-space heap settings */
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board_led_on(LED_HEAPALLOCATE);
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*heap_start = (FAR void*)ubase;
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*heap_size = usize;
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/* Allow user-mode access to the user heap memory */
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sam_mpu_uheap((uintptr_t)ubase, usize);
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#else
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/* Return the heap settings */
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board_led_on(LED_HEAPALLOCATE);
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*heap_start = (FAR void*)g_idle_topstack;
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*heap_size = CONFIG_RAM_END - g_idle_topstack;
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#endif
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}
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/****************************************************************************
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* Name: up_allocate_kheap
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*
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* Description:
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* For the kernel build (CONFIG_BUILD_PROTECTED=y) with both kernel- and
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* user-space heaps (CONFIG_MM_KERNEL_HEAP=y), this function allocates
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* (and protects) the kernel-space heap.
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*
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****************************************************************************/
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#if defined(CONFIG_BUILD_PROTECTED) && defined(CONFIG_MM_KERNEL_HEAP)
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void up_allocate_kheap(FAR void **heap_start, size_t *heap_size)
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{
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/* Get the unaligned size and position of the user-space heap.
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* This heap begins after the user-space .bss section at an offset
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* of CONFIG_MM_KERNEL_HEAPSIZE (subject to alignment).
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*/
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uintptr_t ubase = (uintptr_t)USERSPACE->us_bssend + CONFIG_MM_KERNEL_HEAPSIZE;
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size_t usize = CONFIG_RAM_END - ubase;
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int log2;
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DEBUGASSERT(ubase < (uintptr_t)CONFIG_RAM_END);
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/* Adjust that size to account for MPU alignment requirements.
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* NOTE that there is an implicit assumption that the CONFIG_RAM_END
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* is aligned to the MPU requirement.
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*/
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log2 = (int)mpu_log2regionfloor(usize);
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DEBUGASSERT((CONFIG_RAM_END & ((1 << log2) - 1)) == 0);
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usize = (1 << log2);
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ubase = CONFIG_RAM_END - usize;
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/* Return the kernel heap settings (i.e., the part of the heap region
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* that was not dedicated to the user heap).
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*/
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*heap_start = (FAR void*)USERSPACE->us_bssend;
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*heap_size = ubase - (uintptr_t)USERSPACE->us_bssend;
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}
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#endif
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/************************************************************************
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* Name: up_addregion
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*
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* Description:
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* Memory may be added in non-contiguous chunks. Additional chunks are
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* added by calling this function.
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*
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************************************************************************/
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#if CONFIG_MM_REGIONS > 1
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void up_addregion(void)
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{
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#ifdef HAVE_NFCSRAM_REGION
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/* Clocking may need to be applied to the SMC module in order for the
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* NFCS SRAM to be functional.
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*/
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sam_smc_enableclk();
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/* Allow user access to the heap memory */
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sam_mpu_uheap(SAM_NFCSRAM_BASE, SAMV7_NFCSRAM_SIZE);
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/* Add the region */
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kumm_addregion((FAR void*)SAM_NFCSRAM_BASE, SAMV7_NFCSRAM_SIZE);
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#endif /* HAVE_NFCSRAM_REGION */
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#ifdef HAVE_EXTSRAM0_REGION
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/* Allow user access to the heap memory */
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sam_mpu_uheap(SAM_EXTCS0_BASE, CONFIG_SAMV7_EXTSRAM0SIZE);
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/* Add the region */
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kumm_addregion((FAR void*)SAM_EXTCS0_BASE, CONFIG_SAMV7_EXTSRAM0SIZE);
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#endif /* HAVE_EXTSRAM0_REGION */
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#ifdef HAVE_EXTSRAM1_REGION
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/* Allow user access to the heap memory */
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sam_mpu_uheap(SAM_EXTCS1_BASE, CONFIG_SAMV7_EXTSRAM1SIZE);
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/* Add the region */
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kumm_addregion((FAR void*)SAM_EXTCS1_BASE, CONFIG_SAMV7_EXTSRAM1SIZE);
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#endif /* HAVE_EXTSRAM0_REGION */
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#ifdef HAVE_EXTSRAM2_REGION
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/* Allow user access to the heap memory */
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sam_mpu_uheap(SAM_EXTCS2_BASE, CONFIG_SAMV7_EXTSRAM2SIZE);
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/* Add the region */
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kumm_addregion((FAR void*)SAM_EXTCS2_BASE, CONFIG_SAMV7_EXTSRAM2SIZE);
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#endif /* HAVE_EXTSRAM0_REGION */
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#ifdef HAVE_EXTSRAM3_REGION
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/* Allow user access to the heap memory */
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sam_mpu_uheap(SAM_EXTCS3_BASE, CONFIG_SAMV7_EXTSRAM3SIZE);
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/* Add the region */
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kumm_addregion((FAR void*)SAM_EXTCS3_BASE, CONFIG_SAMV7_EXTSRAM3SIZE);
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#endif /* HAVE_EXTSRAM0_REGION */
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}
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#endif /* CONFIG_MM_REGIONS > 1 */
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@ -0,0 +1,114 @@
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/************************************************************************************
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* arch/arm/src/samv7/sam_mpuinit.h
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*
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* Copyright (C) 2015 Gregory Nutt. All rights reserved.
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* Author: Gregory Nutt <gnutt@nuttx.org>
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*
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* Redistribution and use in source and binary forms, with or without
|
||||
* modification, are permitted provided that the following conditions
|
||||
* are met:
|
||||
*
|
||||
* 1. Redistributions of source code must retain the above copyright
|
||||
* notice, this list of conditions and the following disclaimer.
|
||||
* 2. Redistributions in binary form must reproduce the above copyright
|
||||
* notice, this list of conditions and the following disclaimer in
|
||||
* the documentation and/or other materials provided with the
|
||||
* distribution.
|
||||
* 3. Neither the name NuttX nor the names of its contributors may be
|
||||
* used to endorse or promote products derived from this software
|
||||
* without specific prior written permission.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
||||
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
||||
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
|
||||
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
|
||||
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
|
||||
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
|
||||
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
|
||||
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
|
||||
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
||||
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
|
||||
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
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* POSSIBILITY OF SUCH DAMAGE.
|
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*
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************************************************************************************/
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#ifndef __ARCH_ARM_SRC_SAMV7_SAM_MPUINIT_H
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#define __ARCH_ARM_SRC_SAMV7_SAM_MPUINIT_H
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/************************************************************************************
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* Included Files
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************************************************************************************/
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#include <nuttx/config.h>
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#include <sys/types.h>
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#include <stdint.h>
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/************************************************************************************
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* Definitions
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************************************************************************************/
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/************************************************************************************
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* Public Types
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************************************************************************************/
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/************************************************************************************
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* Inline Functions
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************************************************************************************/
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#ifndef __ASSEMBLY__
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/************************************************************************************
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* Public Data
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************************************************************************************/
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#undef EXTERN
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#if defined(__cplusplus)
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#define EXTERN extern "C"
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extern "C"
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{
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#else
|
||||
#define EXTERN extern
|
||||
#endif
|
||||
|
||||
/************************************************************************************
|
||||
* Public Function Prototypes
|
||||
************************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Name: sam_mpuinitialize
|
||||
*
|
||||
* Description:
|
||||
* Configure the MPU to permit user-space access to only unrestricted SAM3/4
|
||||
* resources.
|
||||
*
|
||||
****************************************************************************/
|
||||
|
||||
#ifdef CONFIG_BUILD_PROTECTED
|
||||
void sam_mpuinitialize(void);
|
||||
#else
|
||||
# define sam_mpuinitialize()
|
||||
#endif
|
||||
|
||||
/****************************************************************************
|
||||
* Name: sam_mpu_uheap
|
||||
*
|
||||
* Description:
|
||||
* Map the user heap region.
|
||||
*
|
||||
****************************************************************************/
|
||||
|
||||
#ifdef CONFIG_BUILD_PROTECTED
|
||||
void sam_mpu_uheap(uintptr_t start, size_t size);
|
||||
#else
|
||||
# define sam_mpu_uheap(start,size)
|
||||
#endif
|
||||
|
||||
#undef EXTERN
|
||||
#if defined(__cplusplus)
|
||||
}
|
||||
#endif
|
||||
|
||||
#endif /* __ASSEMBLY__ */
|
||||
#endif /* __ARCH_ARM_SRC_SAMV7_SAM_MPUINIT_H */
|
||||
|
|
@ -100,7 +100,7 @@
|
|||
#define sam_afec1_enableclk() sam_enableperiph1(SAM_PID_AFEC1)
|
||||
#define sam_twihs2_enableclk() sam_enableperiph1(SAM_PID_TWIHS2)
|
||||
#define sam_spi1_enableclk() sam_enableperiph1(SAM_PID_SPI1)
|
||||
#define sam_spi1_enableclk() sam_enableperiph1(SAM_PID_QSPI)
|
||||
#define sam_qspi_enableclk() sam_enableperiph1(SAM_PID_QSPI)
|
||||
#define sam_uart2_enableclk() sam_enableperiph1(SAM_PID_UART2)
|
||||
#define sam_uart3_enableclk() sam_enableperiph1(SAM_PID_UART3)
|
||||
#define sam_uart4_enableclk() sam_enableperiph1(SAM_PID_UART4)
|
||||
|
|
@ -168,7 +168,7 @@
|
|||
#define sam_afec1_disableclk() sam_disableperiph1(SAM_PID_AFEC1)
|
||||
#define sam_twihs2_disableclk() sam_disableperiph1(SAM_PID_TWIHS2)
|
||||
#define sam_spi1_disableclk() sam_disableperiph1(SAM_PID_SPI1)
|
||||
#define sam_spi1_disableclk() sam_disableperiph1(SAM_PID_QSPI)
|
||||
#define sam_qspi_disableclk() sam_disableperiph1(SAM_PID_QSPI)
|
||||
#define sam_uart2_disableclk() sam_disableperiph1(SAM_PID_UART2)
|
||||
#define sam_uart3_disableclk() sam_disableperiph1(SAM_PID_UART3)
|
||||
#define sam_uart4_disableclk() sam_disableperiph1(SAM_PID_UART4)
|
||||
|
|
|
|||
Loading…
Reference in New Issue