Messages in this thread Patch in this message | | | From | afzal mohammed <> | Subject | [PATCH v2 3/4] ARM: nommu: display vectors base | Date | Sun, 22 Jan 2017 08:52:12 +0530 |
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The exception base address is now dynamically estimated for no-MMU, display it. As it is the case, now limit VECTORS_BASE usage to MMU scenario.
Signed-off-by: afzal mohammed <afzal.mohd.ma@gmail.com> ---
v2: A change to accomodate bisectability resolution on patch 1/4
arch/arm/include/asm/memory.h | 4 ++-- arch/arm/mm/init.c | 5 +++++ arch/arm/mm/mm.h | 5 +++-- 3 files changed, 10 insertions(+), 4 deletions(-)
diff --git a/arch/arm/include/asm/memory.h b/arch/arm/include/asm/memory.h index 0b5416fe7709..9ae474bf84fc 100644 --- a/arch/arm/include/asm/memory.h +++ b/arch/arm/include/asm/memory.h @@ -83,6 +83,8 @@ #define IOREMAP_MAX_ORDER 24 #endif +#define VECTORS_BASE UL(0xffff0000) + #else /* CONFIG_MMU */ /* @@ -111,8 +113,6 @@ #endif /* !CONFIG_MMU */ -#define VECTORS_BASE UL(0xffff0000) - /* * We fix the TCM memories max 32 KiB ITCM resp DTCM at these * locations diff --git a/arch/arm/mm/init.c b/arch/arm/mm/init.c index 823e119a5daa..9c68e3aba87c 100644 --- a/arch/arm/mm/init.c +++ b/arch/arm/mm/init.c @@ -522,7 +522,12 @@ void __init mem_init(void) " .data : 0x%p" " - 0x%p" " (%4td kB)\n" " .bss : 0x%p" " - 0x%p" " (%4td kB)\n", +#ifdef CONFIG_MMU MLK(VECTORS_BASE, VECTORS_BASE + PAGE_SIZE), +#else + MLK(vectors_base, vectors_base + PAGE_SIZE), +#endif + #ifdef CONFIG_HAVE_TCM MLK(DTCM_OFFSET, (unsigned long) dtcm_end), MLK(ITCM_OFFSET, (unsigned long) itcm_end), diff --git a/arch/arm/mm/mm.h b/arch/arm/mm/mm.h index ce727d47275c..546f09437fca 100644 --- a/arch/arm/mm/mm.h +++ b/arch/arm/mm/mm.h @@ -79,8 +79,9 @@ struct static_vm { extern struct list_head static_vmlist; extern struct static_vm *find_static_vm_vaddr(void *vaddr); extern __init void add_static_vm_early(struct static_vm *svm); - -#endif +#else /* CONFIG_MMU */ +extern unsigned long vectors_base; +#endif /* CONFIG_MMU */ #ifdef CONFIG_ZONE_DMA extern phys_addr_t arm_dma_limit; -- 2.11.0
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