STM32 F7: Add heap initializatino logic; Clone the STM32 CCM allocator as the F7 DTCM allocator
This commit is contained in:
Gregory Nutt
parent
5c76329d2e
commit
8fa67213c1
@ -100,10 +100,10 @@
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# define STM32F7_NLCDTFT 1 /* One LCD-TFT */
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#endif
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# define STM32F7_SRAM1 (240*1024) /* 240Kb SRAM1 on AHB bus Matrix */
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# define STM32F7_SRAM2 (16*1024) /* 16Kb SRAM2 on AHB bus Matrix */
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# define STM32F7_DTCM_SRAM (64*1024) /* 64Kb DTCM SRAM on TCM inerface */
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# define STM32F7_ITCM_SRAM (16*1024) /* 16Kb ITCM SRAM on TCM inerface */
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# define STM32F7_SRAM1_SIZE (240*1024) /* 240Kb SRAM1 on AHB bus Matrix */
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# define STM32F7_SRAM2_SIZE (16*1024) /* 16Kb SRAM2 on AHB bus Matrix */
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# define STM32F7_DTCM_SRAM_SIZE (64*1024) /* 64Kb DTCM SRAM on TCM inerface */
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# define STM32F7_ITCM_SRAM_SIZE (16*1024) /* 16Kb ITCM SRAM on TCM inerface */
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# define STM32F7_NFSMC 1 /* Have FSMC memory controller */
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# define STM32F7_NETHERNET 1 /* 100/100 Ethernet MAC */
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@ -416,4 +416,20 @@ config STM32F7_WWDG
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select WATCHDOG
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endmenu
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config STM32F7_CUSTOM_CLOCKCONFIG
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bool "Custom clock configuration"
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default n
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---help---
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Enables special, board-specific STM32 clock configuration.
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config STM32F7_DTCM_PROCFS
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bool "DTCM SRAM PROCFS support"
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default n
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depends on ARMV7M_DTCM && FS_PROCFS
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---help---
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Select to build in support for /proc/dtcm. Reading from /proc/dtcm
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will provide statistics about DTCM memory use similar to what you
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would get from mallinfo() for the user heap.
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endif # ARCH_CHIP_STM32F7
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@ -107,8 +107,15 @@ endif
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# Required STM32F7 files
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CHIP_ASRCS =
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CHIP_CSRCS = stm32_exti_gpio.c stm32_gpio.c stm32_irq.c stm32_rcc.c
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CHIP_CSRCS += stm32_start.c stm32_timerisr.c
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CHIP_CSRCS = stm32_allocateheap.c stm32_exti_gpio.c stm32_gpio.c
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CHIP_CSRCS += stm32_irq.c stm32_rcc.c stm32_start.c stm32_timerisr.c
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ifeq ($(CONFIG_ARMV7M_DTCM),y)
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CHIP_CSRCS += stm32_dtcm.c
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ifeq ($(CONFIG_STM32F7_DTCM_PROCFS),y)
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CHIP_CSRCS += stm32_procfs_dtcm.c
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endif
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endif
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ifeq ($(CONFIG_DEBUG),y)
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CHIP_CSRCS += stm32_dumpgpio.c
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358
arch/arm/src/stm32f7/stm32_allocateheap.c
Normal file
358
arch/arm/src/stm32f7/stm32_allocateheap.c
Normal file
@ -0,0 +1,358 @@
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/****************************************************************************
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* arch/arm/src/stm32f7/up_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 <stdint.h>
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#include <assert.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 <nuttx/userspace.h>
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#include <arch/stm32f7/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 "stm32_mpuinit.h"
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/****************************************************************************
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* Pre-processor Definitions
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****************************************************************************/
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/* Internal SRAM is available in all members of the STM32 family. The
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* following definitions must be provided to specify the size and
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* location of internal(system) SRAM:
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*
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* CONFIG_RAM_END : End address (+1) of SRAM (F1 family only, the
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* : F4 family uses the a priori end of SRAM)
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*
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* In addition to internal SRAM, SRAM may also be available through the FSMC.
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* In order to use FSMC SRAM, the following additional things need to be
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* present in the NuttX configuration file:
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*
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* CONFIG_STM32F7_FSMC=y : Enables the FSMC
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* CONFIG_STM32F7_FSMC_SRAM=y : Indicates that SRAM is available via the
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* FSMC (as opposed to an LCD or FLASH).
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* CONFIG_HEAP2_BASE : The base address of the SRAM in the FSMC
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* address space
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* CONFIG_HEAP2_SIZE : The size of the SRAM in the FSMC
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* address space
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* CONFIG_MM_REGIONS : Must be set to a large enough value to
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* include the FSMC SRAM (as determined by
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* the rules provided below)
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*/
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/* Set the start and end of SRAM1 and SRAM2 */
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#define SRAM1_START STM32_SRAM1_BASE
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#define SRAM1_END (SRAM1_START + STM32F7_SRAM1_SIZE)
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#define SRAM2_START STM32_SRAM2_BASE
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#define SRAM2_END (SRAM2_START + STM32F7_SRAM2_SIZE)
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/* We can't possibly have FSMC SRAM if the FSMC is not enabled */
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#ifndef CONFIG_STM32F7_FSMC
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# undef CONFIG_STM32F7_FSMC_SRAM
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#endif
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/* If FSMC SRAM is going to be used as heap, then verify that the starting
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* address and size of the external SRAM region has been provided in the
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* configuration (as CONFIG_HEAP2_BASE and CONFIG_HEAP2_SIZE).
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*/
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#ifdef CONFIG_STM32F7_FSMC_SRAM
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# if !defined(CONFIG_HEAP2_BASE) || !defined(CONFIG_HEAP2_SIZE)
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# error CONFIG_HEAP2_BASE and CONFIG_HEAP2_SIZE must be provided
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# undef CONFIG_STM32F7_FSMC_SRAM
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# endif
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#endif
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/* There are 3 possible heap configurations:
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*
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* Configuration 1. System SRAM1 (only)
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* CONFIG_MM_REGIONS == 1
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* CONFIG_STM32F7_FSMC_SRAM NOT defined
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* Configuration 2. System SRAM1 and SRAM2
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* CONFIG_MM_REGIONS == 2
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* CONFIG_STM32F7_FSMC_SRAM NOT defined
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* Configuration 3. System SRAM1 and SRAM2 and FSMC SRAM
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* CONFIG_MM_REGIONS == 3
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* CONFIG_STM32F7_FSMC_SRAM defined
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*
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* Let's make sure that all definitions are consistent before doing
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* anything else
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*/
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#if CONFIG_MM_REGIONS < 2
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# ifdef CONFIG_STM32F7_FSMC_SRAM
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# warning FSMC SRAM and SRAM2 excluded from the heap
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# else
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# warning "SRAM2 excluded from the heap"
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# endif
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#elif CONFIG_MM_REGIONS < 3
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# ifdef CONFIG_STM32F7_FSMC_SRAM
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# warning FSMC SRAM excluded from the heap
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# endif
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#elif CONFIG_MM_REGIONS < 4
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# ifndef CONFIG_STM32F7_FSMC_SRAM
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# error CONFIG_MM_REGIONS > 2 but I do not know what some of the region(s) are
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# undef CONFIG_MM_REGIONS
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# define CONFIG_MM_REGIONS 2
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# endif
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#else
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# error CONFIG_MM_REGIONS > 3 but I do not know what some of the region(s) are
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# undef CONFIG_MM_REGIONS
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# ifdef CONFIG_STM32F7_FSMC_SRAM
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# define CONFIG_MM_REGIONS 3
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# else
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# define CONFIG_MM_REGIONS 2
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# endif
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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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* Name: up_heap_color
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*
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* Description:
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* Set heap memory to a known, non-zero state to checking heap usage.
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*
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****************************************************************************/
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#ifdef CONFIG_DEBUG_HEAP
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static inline void up_heap_color(FAR void *start, size_t size)
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{
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memset(start, HEAP_COLOR, size);
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}
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#else
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# define up_heap_color(start,size)
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#endif
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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 = SRAM1_END - ubase;
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int log2;
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DEBUGASSERT(ubase < (uintptr_t)SRAM1_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 SRAM1_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((SRAM1_END & ((1 << log2) - 1)) == 0);
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usize = (1 << log2);
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ubase = SRAM1_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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/* Colorize the heap for debug */
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up_heap_color((FAR void*)ubase, usize);
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/* Allow user-mode access to the user heap memory */
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stm32_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 = SRAM1_END - g_idle_topstack;
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/* Colorize the heap for debug */
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up_heap_color(*heap_start, *heap_size);
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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 = SRAM1_END - ubase;
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int log2;
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DEBUGASSERT(ubase < (uintptr_t)SRAM1_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 SRAM1_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((SRAM1_END & ((1 << log2) - 1)) == 0);
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usize = (1 << log2);
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ubase = SRAM1_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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#if defined(CONFIG_BUILD_PROTECTED) && defined(CONFIG_MM_KERNEL_HEAP)
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/* Allow user-mode access to the STM32F20xxx/STM32F40xxx SRAM2 heap */
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stm32_mpu_uheap((uintptr_t)SRAM2_START, SRAM2_END-SRAM2_START);
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#endif
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/* Colorize the heap for debug */
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up_heap_color((FAR void*)SRAM2_START, SRAM2_END-SRAM2_START);
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/* Add the STM32F20xxx/STM32F40xxx SRAM2 user heap region. */
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kumm_addregion((FAR void*)SRAM2_START, SRAM2_END-SRAM2_START);
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#ifdef CONFIG_STM32F7_FSMC_SRAM
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#if defined(CONFIG_BUILD_PROTECTED) && defined(CONFIG_MM_KERNEL_HEAP)
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/* Allow user-mode access to the FSMC SRAM user heap memory */
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stm32_mpu_uheap((uintptr_t)CONFIG_HEAP2_BASE, CONFIG_HEAP2_SIZE);
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#endif
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/* Colorize the heap for debug */
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up_heap_color((FAR void*)CONFIG_HEAP2_BASE, CONFIG_HEAP2_SIZE);
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/* Add the external FSMC SRAM user heap region. */
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kumm_addregion((FAR void*)CONFIG_HEAP2_BASE, CONFIG_HEAP2_SIZE);
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#endif
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}
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#endif
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64
arch/arm/src/stm32f7/stm32_dtcm.c
Normal file
64
arch/arm/src/stm32f7/stm32_dtcm.c
Normal file
@ -0,0 +1,64 @@
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/****************************************************************************
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* arch/arm/src/stm32f7/stm32_dtcm.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
|
||||
* 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
|
||||
* POSSIBILITY OF SUCH DAMAGE.
|
||||
*
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Included Files
|
||||
****************************************************************************/
|
||||
|
||||
#include <nuttx/config.h>
|
||||
|
||||
#include "stm32_dtcm.h"
|
||||
|
||||
#ifdef HAVE_DTCM_HEAP
|
||||
|
||||
/****************************************************************************
|
||||
* Pre-processor Definitions
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Private Types
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Public Data
|
||||
****************************************************************************/
|
||||
|
||||
struct mm_heap_s g_dtcm_heap;
|
||||
|
||||
/****************************************************************************
|
||||
* Public Function Prototypes
|
||||
****************************************************************************/
|
||||
|
||||
#endif /* HAVE_DTCM_HEAP */
|
||||
135
arch/arm/src/stm32f7/stm32_dtcm.h
Normal file
135
arch/arm/src/stm32f7/stm32_dtcm.h
Normal file
@ -0,0 +1,135 @@
|
||||
/****************************************************************************
|
||||
* arch/arm/src/stm32f7/stm32_dtcm.h
|
||||
*
|
||||
* Copyright (C) 2015 Gregory Nutt. All rights reserved.
|
||||
* Author: Gregory Nutt <gnutt@nuttx.org>
|
||||
*
|
||||
* 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
|
||||
* POSSIBILITY OF SUCH DAMAGE.
|
||||
*
|
||||
****************************************************************************/
|
||||
|
||||
#ifndef __ARCH_ARM_SRC_STM32F7_STM32_DTCM_H
|
||||
#define __ARCH_ARM_SRC_STM32F7_STM32_DTCM_H
|
||||
|
||||
/****************************************************************************
|
||||
* Included Files
|
||||
****************************************************************************/
|
||||
|
||||
#include <nuttx/config.h>
|
||||
|
||||
#include <nuttx/mm/mm.h>
|
||||
|
||||
/****************************************************************************
|
||||
* Pre-processor Definitions
|
||||
****************************************************************************/
|
||||
/* Configuration ************************************************************/
|
||||
/* Assume that we can support the DTCM heap */
|
||||
|
||||
#define HAVE_DTCM_HEAP 1
|
||||
|
||||
/* Only the STM32 F2, F3, and F4 have DTCM memory */
|
||||
|
||||
#if defined(CONFIG_STM32_STM32F30XX)
|
||||
# define DTCM_START 0x10000000
|
||||
# define DTCM_END 0x10002000
|
||||
#elif defined(CONFIG_STM32_STM32F20XX) || defined(CONFIG_STM32_STM32F40XX)
|
||||
# define DTCM_START 0x10000000
|
||||
# define DTCM_END 0x10010000
|
||||
#else
|
||||
# undef HAVE_DTCM_HEAP
|
||||
#endif
|
||||
|
||||
/* In order to use the DTCM heap, it had to have been excluded from the main
|
||||
* heap.
|
||||
*/
|
||||
|
||||
#ifndef CONFIG_STM32_DTCMEXCLUDE
|
||||
# undef HAVE_DTCM_HEAP
|
||||
#endif
|
||||
|
||||
/* Can we support the DTCM heap? */
|
||||
|
||||
#ifdef HAVE_DTCM_HEAP
|
||||
|
||||
/* dtcm_initialize must be called early in initialization in order to
|
||||
* initialize the DTCM heap.
|
||||
*/
|
||||
|
||||
#define dtcm_initialize() \
|
||||
mm_initialize(&g_dtcm_heap, (FAR void *)DTCM_START, DTCM_END-DTCM_START)
|
||||
|
||||
/* The dtcm_addregion interface could be used if, for example, you want to
|
||||
* add some other memory region to the DTCM heap. I don't really know why
|
||||
* you might want to do that, but the functionality is essentially free.
|
||||
*/
|
||||
|
||||
#define dtcm_addregion(b,s) mm_addregion(&g_dtcm_heap, b, s);
|
||||
|
||||
/* Then, once g_dtcm_heap has been setup by dtcm_initialize(), these memory
|
||||
* allocators can be used just like the standard memory allocators.
|
||||
*/
|
||||
|
||||
#define dtcm_malloc(s) mm_malloc(&g_dtcm_heap, s)
|
||||
#define dtcm_zalloc(s) mm_zalloc(&g_dtcm_heap, s)
|
||||
#define dtcm_calloc(n,s) mm_calloc(&g_dtcm_heap, n,s)
|
||||
#define dtcm_free(p) mm_free(&g_dtcm_heap, p)
|
||||
#define dtcm_realloc(p,s) mm_realloc(&g_dtcm_heap, p, s)
|
||||
#define dtcm_memalign(a,s) mm_memalign(&g_dtcm_heap, a, s)
|
||||
|
||||
/****************************************************************************
|
||||
* Public Types
|
||||
****************************************************************************/
|
||||
|
||||
#ifndef __ASSEMBLY__
|
||||
|
||||
/****************************************************************************
|
||||
* Public Data
|
||||
****************************************************************************/
|
||||
|
||||
#ifdef __cplusplus
|
||||
#define EXTERN extern "C"
|
||||
extern "C"
|
||||
{
|
||||
#else
|
||||
#define EXTERN extern
|
||||
#endif
|
||||
|
||||
EXTERN struct mm_heap_s g_dtcm_heap;
|
||||
|
||||
/****************************************************************************
|
||||
* Public Function Prototypes
|
||||
****************************************************************************/
|
||||
|
||||
#undef EXTERN
|
||||
#ifdef __cplusplus
|
||||
}
|
||||
#endif
|
||||
|
||||
#endif /* __ASSEMBLY__ */
|
||||
#endif /* HAVE_DTCM_HEAP */
|
||||
#endif /* __ARCH_ARM_SRC_STM32F7_STM32_DTCM_H */
|
||||
323
arch/arm/src/stm32f7/stm32_procfs_dtcm.c
Normal file
323
arch/arm/src/stm32f7/stm32_procfs_dtcm.c
Normal file
@ -0,0 +1,323 @@
|
||||
/****************************************************************************
|
||||
* arch/arm/src/stm32f7/stm32_procfs_dtcm.c
|
||||
*
|
||||
* Copyright (C) 2015 Gregory Nutt. All rights reserved.
|
||||
* Author: Gregory Nutt <gnutt@nuttx.org>
|
||||
*
|
||||
* Based on STM32 CCM code contributed by Pelle Windestam:
|
||||
*
|
||||
* Copyright (C) 2014 Pelle Windestam. All rights reserved.
|
||||
* Author: Pelle Windestam (pelle@windestam.se)
|
||||
*
|
||||
* 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
|
||||
* POSSIBILITY OF SUCH DAMAGE.
|
||||
*
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Included Files
|
||||
****************************************************************************/
|
||||
|
||||
#include <nuttx/config.h>
|
||||
|
||||
#include <sys/types.h>
|
||||
#include <sys/statfs.h>
|
||||
#include <sys/stat.h>
|
||||
|
||||
#include <stdint.h>
|
||||
#include <stdbool.h>
|
||||
#include <stdio.h>
|
||||
#include <stdlib.h>
|
||||
#include <string.h>
|
||||
#include <fcntl.h>
|
||||
#include <assert.h>
|
||||
#include <errno.h>
|
||||
#include <debug.h>
|
||||
|
||||
#include <nuttx/arch.h>
|
||||
#include <nuttx/sched.h>
|
||||
#include <nuttx/kmalloc.h>
|
||||
#include <nuttx/fs/fs.h>
|
||||
#include <nuttx/fs/procfs.h>
|
||||
#include <nuttx/fs/dirent.h>
|
||||
|
||||
#include <arch/irq.h>
|
||||
|
||||
#include "stm32_dtcm.h"
|
||||
|
||||
#if !defined(CONFIG_DISABLE_MOUNTPOINT) && defined(CONFIG_FS_PROCFS)
|
||||
|
||||
/****************************************************************************
|
||||
* Pre-processor Definitions
|
||||
****************************************************************************/
|
||||
|
||||
#define DTCM_LINELEN 64
|
||||
|
||||
/****************************************************************************
|
||||
* Private Types
|
||||
****************************************************************************/
|
||||
/* This enumeration identifies all of the thread attributes that can be
|
||||
* accessed via the procfs file system.
|
||||
*/
|
||||
|
||||
/* This structure describes one open "file" */
|
||||
|
||||
struct dtcm_file_s
|
||||
{
|
||||
struct procfs_file_s base; /* Base open file structure */
|
||||
unsigned int linesize; /* Number of valid characters in line[] */
|
||||
char line[DTCM_LINELEN]; /* Pre-allocated buffer for formatted lines */
|
||||
};
|
||||
|
||||
/****************************************************************************
|
||||
* Private Function Prototypes
|
||||
****************************************************************************/
|
||||
/* File system methods */
|
||||
|
||||
static int dtcm_open(FAR struct file *filep, FAR const char *relpath,
|
||||
int oflags, mode_t mode);
|
||||
static int dtcm_close(FAR struct file *filep);
|
||||
static ssize_t dtcm_read(FAR struct file *filep, FAR char *buffer,
|
||||
size_t buflen);
|
||||
static int dtcm_dup(FAR const struct file *oldp,
|
||||
FAR struct file *newp);
|
||||
static int dtcm_stat(FAR const char *relpath, FAR struct stat *buf);
|
||||
|
||||
/****************************************************************************
|
||||
* Private Variables
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Public Variables
|
||||
****************************************************************************/
|
||||
|
||||
/* See include/nutts/fs/procfs.h
|
||||
* We use the old-fashioned kind of initializers so that this will compile
|
||||
* with any compiler.
|
||||
*/
|
||||
|
||||
const struct procfs_operations dtcm_procfsoperations =
|
||||
{
|
||||
dtcm_open, /* open */
|
||||
dtcm_close, /* close */
|
||||
dtcm_read, /* read */
|
||||
NULL, /* write */
|
||||
dtcm_dup, /* dup */
|
||||
NULL, /* opendir */
|
||||
NULL, /* closedir */
|
||||
NULL, /* readdir */
|
||||
NULL, /* rewinddir */
|
||||
dtcm_stat /* stat */
|
||||
};
|
||||
|
||||
/****************************************************************************
|
||||
* Private Functions
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Name: dtcm_open
|
||||
****************************************************************************/
|
||||
|
||||
static int dtcm_open(FAR struct file *filep, FAR const char *relpath,
|
||||
int oflags, mode_t mode)
|
||||
{
|
||||
FAR struct dtcm_file_s *priv;
|
||||
|
||||
fvdbg("Open '%s'\n", relpath);
|
||||
|
||||
/* PROCFS is read-only. Any attempt to open with any kind of write
|
||||
* access is not permitted.
|
||||
*
|
||||
* REVISIT: Write-able proc files could be quite useful.
|
||||
*/
|
||||
|
||||
if ((oflags & O_WRONLY) != 0 || (oflags & O_RDONLY) == 0)
|
||||
{
|
||||
fdbg("ERROR: Only O_RDONLY supported\n");
|
||||
return -EACCES;
|
||||
}
|
||||
|
||||
/* "cpuload" is the only acceptable value for the relpath */
|
||||
|
||||
if (strcmp(relpath, "dtcm") != 0)
|
||||
{
|
||||
fdbg("ERROR: relpath is '%s'\n", relpath);
|
||||
return -ENOENT;
|
||||
}
|
||||
|
||||
/* Allocate a container to hold the task and attribute selection */
|
||||
|
||||
priv = (FAR struct dtcm_file_s *)kmm_zalloc(sizeof(struct dtcm_file_s));
|
||||
if (!priv)
|
||||
{
|
||||
fdbg("ERROR: Failed to allocate file attributes\n");
|
||||
return -ENOMEM;
|
||||
}
|
||||
|
||||
/* Save the index as the open-specific state in filep->f_priv */
|
||||
|
||||
filep->f_priv = (FAR void *)priv;
|
||||
return OK;
|
||||
}
|
||||
|
||||
/****************************************************************************
|
||||
* Name: dtcm_close
|
||||
****************************************************************************/
|
||||
|
||||
static int dtcm_close(FAR struct file *filep)
|
||||
{
|
||||
FAR struct dtcm_file_s *priv;
|
||||
|
||||
/* Recover our private data from the struct file instance */
|
||||
|
||||
priv = (FAR struct dtcm_file_s *)filep->f_priv;
|
||||
DEBUGASSERT(priv);
|
||||
|
||||
/* Release the file attributes structure */
|
||||
|
||||
kmm_free(priv);
|
||||
filep->f_priv = NULL;
|
||||
return OK;
|
||||
}
|
||||
|
||||
/****************************************************************************
|
||||
* Name: dtcm_read
|
||||
****************************************************************************/
|
||||
|
||||
static ssize_t dtcm_read(FAR struct file *filep, FAR char *buffer,
|
||||
size_t buflen)
|
||||
{
|
||||
FAR struct dtcm_file_s *priv;
|
||||
size_t linesize;
|
||||
size_t copysize;
|
||||
size_t remaining;
|
||||
size_t totalsize;
|
||||
struct mallinfo mem;
|
||||
off_t offset = filep->f_pos;
|
||||
|
||||
fvdbg("buffer=%p buflen=%d\n", buffer, (int)buflen);
|
||||
|
||||
/* Recover our private data from the struct file instance */
|
||||
|
||||
priv = (FAR struct dtcm_file_s *)filep->f_priv;
|
||||
DEBUGASSERT(priv);
|
||||
|
||||
|
||||
mm_mallinfo(&g_dtcm_heap, &mem);
|
||||
|
||||
remaining = buflen;
|
||||
totalsize = 0;
|
||||
|
||||
linesize = snprintf(priv->line,
|
||||
DTCM_LINELEN,
|
||||
" total used free largest\n");
|
||||
copysize = procfs_memcpy(priv->line, linesize, buffer, remaining, &offset);
|
||||
totalsize += copysize;
|
||||
buffer += copysize;
|
||||
remaining -= copysize;
|
||||
|
||||
if (totalsize >= buflen)
|
||||
{
|
||||
return totalsize;
|
||||
}
|
||||
|
||||
linesize = snprintf(priv->line,
|
||||
DTCM_LINELEN,
|
||||
"Mem: %11d%11d%11d%11d\n",
|
||||
mem.arena,
|
||||
mem.uordblks,
|
||||
mem.fordblks,
|
||||
mem.mxordblk);
|
||||
copysize = procfs_memcpy(priv->line, linesize, buffer, remaining, &offset);
|
||||
totalsize += copysize;
|
||||
|
||||
/* Update the file offset */
|
||||
|
||||
if (totalsize > 0)
|
||||
{
|
||||
filep->f_pos += totalsize;
|
||||
}
|
||||
|
||||
return totalsize;
|
||||
}
|
||||
|
||||
/****************************************************************************
|
||||
* Name: dtcm_dup
|
||||
*
|
||||
* Description:
|
||||
* Duplicate open file data in the new file structure.
|
||||
*
|
||||
****************************************************************************/
|
||||
|
||||
static int dtcm_dup(FAR const struct file *oldp, FAR struct file *newp)
|
||||
{
|
||||
FAR struct dtcm_file_s *oldpriv;
|
||||
FAR struct dtcm_file_s *newpriv;
|
||||
|
||||
fvdbg("Dup %p->%p\n", oldp, newp);
|
||||
|
||||
/* Recover our private data from the old struct file instance */
|
||||
|
||||
oldpriv = (FAR struct dtcm_file_s *)oldp->f_priv;
|
||||
DEBUGASSERT(oldpriv);
|
||||
|
||||
/* Allocate a new container to hold the task and attribute selection */
|
||||
|
||||
newpriv = (FAR struct dtcm_file_s *)kmm_zalloc(sizeof(struct dtcm_file_s));
|
||||
if (!newpriv)
|
||||
{
|
||||
fdbg("ERROR: Failed to allocate file attributes\n");
|
||||
return -ENOMEM;
|
||||
}
|
||||
|
||||
/* The copy the file attributes from the old attributes to the new */
|
||||
|
||||
memcpy(newpriv, oldpriv, sizeof(struct dtcm_file_s));
|
||||
|
||||
/* Save the new attributes in the new file structure */
|
||||
|
||||
newp->f_priv = (FAR void *)newpriv;
|
||||
return OK;
|
||||
}
|
||||
|
||||
static int dtcm_stat(const char *relpath, struct stat *buf)
|
||||
{
|
||||
if (strcmp(relpath, "dtcm") != 0)
|
||||
{
|
||||
fdbg("ERROR: relpath is '%s'\n", relpath);
|
||||
return -ENOENT;
|
||||
}
|
||||
|
||||
buf->st_mode = S_IFREG|S_IROTH|S_IRGRP|S_IRUSR;
|
||||
buf->st_size = 0;
|
||||
buf->st_blksize = 0;
|
||||
buf->st_blocks = 0;
|
||||
|
||||
return OK;
|
||||
}
|
||||
|
||||
#endif /* !CONFIG_DISABLE_MOUNTPOINT && CONFIG_FS_PROCFS */
|
||||
@ -92,7 +92,7 @@
|
||||
* and enable peripheral clocking for all peripherals enabled in the NuttX
|
||||
* configurationfile.
|
||||
*
|
||||
* If CONFIG_ARCH_BOARD_STM32_CUSTOM_CLOCKCONFIG is defined, then clocking
|
||||
* If CONFIG_STM32F7_CUSTOM_CLOCKCONFIG is defined, then clocking
|
||||
* will be enabled by an externally provided, board-specific function called
|
||||
* stm32_board_clockconfig().
|
||||
*
|
||||
@ -110,7 +110,7 @@ void stm32_clockconfig(void)
|
||||
|
||||
rcc_reset();
|
||||
|
||||
#if defined(CONFIG_ARCH_BOARD_STM32_CUSTOM_CLOCKCONFIG)
|
||||
#if defined(CONFIG_STM32F7_CUSTOM_CLOCKCONFIG)
|
||||
|
||||
/* Invoke Board Custom Clock Configuration */
|
||||
|
||||
@ -142,8 +142,8 @@ void stm32_clockconfig(void)
|
||||
* stm32_clockconfig(): It does not reset any devices, and it does not reset the
|
||||
* currenlty enabled peripheral clocks.
|
||||
*
|
||||
* If CONFIG_ARCH_BOARD_STM32_CUSTOM_CLOCKCONFIG is defined, then clocking will
|
||||
* be enabled by an externally provided, board-specific function called
|
||||
* If CONFIG_STM32F7_CUSTOM_CLOCKCONFIG is defined, then clocking will be enabled
|
||||
* by an externally provided, board-specific function called
|
||||
* stm32_board_clockconfig().
|
||||
*
|
||||
* Input Parameters:
|
||||
@ -157,7 +157,7 @@ void stm32_clockconfig(void)
|
||||
#ifdef CONFIG_PM
|
||||
void stm32_clockenable(void)
|
||||
{
|
||||
#if defined(CONFIG_ARCH_BOARD_STM32_CUSTOM_CLOCKCONFIG)
|
||||
#if defined(CONFIG_STM32F7_CUSTOM_CLOCKCONFIG)
|
||||
|
||||
/* Invoke Board Custom Clock Configuration */
|
||||
|
||||
|
||||
@ -151,8 +151,8 @@ static inline void stm32_mco2config(uint32_t source, uint32_t div)
|
||||
* peripheral clocking for all peripherals enabled in the NuttX configuration
|
||||
* file.
|
||||
*
|
||||
* If CONFIG_ARCH_BOARD_STM32_CUSTOM_CLOCKCONFIG is defined, then clocking will
|
||||
* be enabled by an externally provided, board-specific function called
|
||||
* If CONFIG_STM32F7_CUSTOM_CLOCKCONFIG is defined, then clocking will be enabled
|
||||
* by an externally provided, board-specific function called
|
||||
* stm32_board_clockconfig().
|
||||
*
|
||||
* Input Parameters:
|
||||
@ -174,7 +174,7 @@ void stm32_clockconfig(void);
|
||||
*
|
||||
************************************************************************************/
|
||||
|
||||
#ifdef CONFIG_ARCH_BOARD_STM32_CUSTOM_CLOCKCONFIG
|
||||
#ifdef CONFIG_STM32F7_CUSTOM_CLOCKCONFIG
|
||||
void stm32_board_clockconfig(void);
|
||||
#endif
|
||||
|
||||
@ -191,7 +191,7 @@ void stm32_board_clockconfig(void);
|
||||
* stm32_clockconfig(): It does not reset any devices, and it does not reset the
|
||||
* currently enabled peripheral clocks.
|
||||
*
|
||||
* If CONFIG_ARCH_BOARD_STM32_CUSTOM_CLOCKCONFIG is defined, then clocking will
|
||||
* If CONFIG_STM32F7_CUSTOM_CLOCKCONFIG is defined, then clocking will
|
||||
* be enabled by an externally provided, board-specific function called
|
||||
* stm32_board_clockconfig().
|
||||
*
|
||||
|
||||
@ -655,7 +655,7 @@ static inline void rcc_enableapb2(void)
|
||||
* power clocking modes!
|
||||
****************************************************************************/
|
||||
|
||||
#ifndef CONFIG_ARCH_BOARD_STM32_CUSTOM_CLOCKCONFIG
|
||||
#ifndef CONFIG_STM32F7_CUSTOM_CLOCKCONFIG
|
||||
static void stm32_stdclockconfig(void)
|
||||
{
|
||||
uint32_t regval;
|
||||
|
||||
Loading…
Reference in New Issue
Block a user