arch: arc: fix the overkilled codes caused by removing APP_MEM
these codes are overkilled by commit 41f6011c
Signed-off-by: Wayne Ren <wei.ren@synopsys.com>
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cf856183d1
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2 changed files with 24 additions and 0 deletions
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@ -460,6 +460,17 @@ void arc_core_mpu_configure_user_context(struct k_thread *thread)
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}
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arc_core_mpu_configure(THREAD_STACK_USER_REGION, base, size);
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#if defined(CONFIG_APP_SHARED_MEM) && CONFIG_ARC_MPU_VER == 3
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/*
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* here, need to clear THREAD_APP_DATA_REGION for user thread as it will
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* be set by kernel thread to to access app_shared mem. For user thread
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* the handling of app_shared mem is done by
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* THREAD_DOMAIN_PARTITION_REGION
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*/
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_region_init(_get_region_index_by_type(THREAD_APP_DATA_REGION)
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, 0, 0, 0);
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#endif
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}
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/**
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@ -11,6 +11,18 @@
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#ifdef CONFIG_USERSPACE
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static struct arc_mpu_region mpu_regions[] = {
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#if CONFIG_ARC_MPU_VER == 3
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/* Region ICCM */
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MPU_REGION_ENTRY("IMAGE ROM",
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(u32_t) _image_rom_start,
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(u32_t) _image_rom_size,
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REGION_FLASH_ATTR),
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MPU_REGION_ENTRY("KERNEL MEMORY",
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(u32_t) __kernel_ram_start,
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(u32_t) __kernel_ram_size,
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AUX_MPU_RDP_KW | AUX_MPU_RDP_KR),
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#else
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#if DT_ICCM_SIZE > 0
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/* Region ICCM */
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MPU_REGION_ENTRY("ICCM",
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@ -33,6 +45,7 @@ static struct arc_mpu_region mpu_regions[] = {
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AUX_MPU_RDP_KW | AUX_MPU_RDP_KR |
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AUX_MPU_RDP_KE | AUX_MPU_RDP_UE),
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#endif
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#endif /* ARC_MPU_VER == 3 */
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/* Region Peripheral */
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MPU_REGION_ENTRY("PERIPHERAL",
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0xF0000000,
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