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| author |   Florian Fainelli <f.fainelli@gmail.com> | 2017-01-15 03:57:40 +0100 |
|---|---|---|
| committer |   Russell King <rmk+kernel@armlinux.org.uk> | 2017-02-28 11:05:46 +0000 |
| commit | a09975bf6c756e4555a95258ff4b2286dcfddc4e (patch) | |
| tree | 3e7ef22bd4bdf3dfe942321f50b6ca4d91bcf52d | |
| parent | ARM: 8638/1: mtd: lart: Rename partition defines to be prefixed with PART_ (diff) | |
| download | linux-dev-a09975bf6c756e4555a95258ff4b2286dcfddc4e.tar.xz linux-dev-a09975bf6c756e4555a95258ff4b2286dcfddc4e.zip | |
ARM: 8639/1: Define KERNEL_START and KERNEL_END
In preparation for adding CONFIG_DEBUG_VIRTUAL support, define a set of
common constants: KERNEL_START and KERNEL_END which abstract
CONFIG_XIP_KERNEL vs. !CONFIG_XIP_KERNEL. Update the code where
relevant.
Acked-by: Russell King <rmk+kernel@armlinux.org.uk>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| -rw-r--r-- | arch/arm/include/asm/memory.h | 7 | ||||
| -rw-r--r-- | arch/arm/mm/init.c | 7 | ||||
| -rw-r--r-- | arch/arm/mm/mmu.c | 6 |
3 files changed, 10 insertions, 10 deletions
diff --git a/arch/arm/include/asm/memory.h b/arch/arm/include/asm/memory.h index 76cbd9c674df..bee7511c5098 100644 --- a/arch/arm/include/asm/memory.h +++ b/arch/arm/include/asm/memory.h @@ -111,6 +111,13 @@ #endif /* !CONFIG_MMU */ +#ifdef CONFIG_XIP_KERNEL +#define KERNEL_START _sdata +#else +#define KERNEL_START _stext +#endif +#define KERNEL_END _end + /* * 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 370581aeb871..4127f578086c 100644 --- a/arch/arm/mm/init.c +++ b/arch/arm/mm/init.c @@ -230,11 +230,8 @@ phys_addr_t __init arm_memblock_steal(phys_addr_t size, phys_addr_t align) void __init arm_memblock_init(const struct machine_desc *mdesc) { /* Register the kernel text, kernel data and initrd with memblock. */ -#ifdef CONFIG_XIP_KERNEL - memblock_reserve(__pa(_sdata), _end - _sdata); -#else - memblock_reserve(__pa(_stext), _end - _stext); -#endif + memblock_reserve(__pa(KERNEL_START), KERNEL_END - KERNEL_START); + #ifdef CONFIG_BLK_DEV_INITRD /* FDT scan will populate initrd_start */ if (initrd_start && !phys_initrd_size) { diff --git a/arch/arm/mm/mmu.c b/arch/arm/mm/mmu.c index 5cbfd9f86412..4e016d7f37b3 100644 --- a/arch/arm/mm/mmu.c +++ b/arch/arm/mm/mmu.c @@ -1422,11 +1422,7 @@ static void __init kmap_init(void) static void __init map_lowmem(void) { struct memblock_region *reg; -#ifdef CONFIG_XIP_KERNEL - phys_addr_t kernel_x_start = round_down(__pa(_sdata), SECTION_SIZE); -#else - phys_addr_t kernel_x_start = round_down(__pa(_stext), SECTION_SIZE); -#endif + phys_addr_t kernel_x_start = round_down(__pa(KERNEL_START), SECTION_SIZE); phys_addr_t kernel_x_end = round_up(__pa(__init_end), SECTION_SIZE); /* Map all the lowmem memory banks. */ |