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author | Max Filippov <jcmvbkbc@gmail.com> | 2014-03-23 03:17:43 +0400 |
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committer | Max Filippov <jcmvbkbc@gmail.com> | 2014-04-02 01:35:51 +0400 |
commit | 9ba067f93f1eec0d241f002812806b873dd4f802 (patch) | |
tree | 423c136a38f9290bf8fba0ede928f9bc8e9bc3a8 /arch/xtensa/kernel/setup.c | |
parent | 25df8198f4b257cf6db4d4f000c53accfa9c28f8 (diff) | |
download | linux-9ba067f93f1eec0d241f002812806b873dd4f802.tar.gz linux-9ba067f93f1eec0d241f002812806b873dd4f802.tar.bz2 linux-9ba067f93f1eec0d241f002812806b873dd4f802.zip |
xtensa: split bootparam and kernel meminfo
Bootparam meminfo is a bootloader ABI, kernel meminfo is for the kernel
bookkeeping, keep them separate. Kernel doesn't care of memory region
types, so drop the type field and don't pass it to add_sysmem_bank.
Move kernel sysmem structures and prototypes to asm/sysmem.h and sysmem
variable and add_sysmem_bank to mm/init.c
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
Diffstat (limited to 'arch/xtensa/kernel/setup.c')
-rw-r--r-- | arch/xtensa/kernel/setup.c | 43 |
1 files changed, 9 insertions, 34 deletions
diff --git a/arch/xtensa/kernel/setup.c b/arch/xtensa/kernel/setup.c index 84fe931bb60e..df2b1d6fc843 100644 --- a/arch/xtensa/kernel/setup.c +++ b/arch/xtensa/kernel/setup.c @@ -50,6 +50,7 @@ #include <asm/param.h> #include <asm/traps.h> #include <asm/smp.h> +#include <asm/sysmem.h> #include <platform/hardware.h> @@ -88,12 +89,6 @@ static char __initdata command_line[COMMAND_LINE_SIZE]; static char default_command_line[COMMAND_LINE_SIZE] __initdata = CONFIG_CMDLINE; #endif -sysmem_info_t __initdata sysmem; - -extern int mem_reserve(unsigned long, unsigned long, int); -extern void bootmem_init(void); -extern void zones_init(void); - /* * Boot parameter parsing. * @@ -113,31 +108,14 @@ typedef struct tagtable { /* parse current tag */ -static int __init add_sysmem_bank(unsigned long type, unsigned long start, - unsigned long end) -{ - if (sysmem.nr_banks >= SYSMEM_BANKS_MAX) { - printk(KERN_WARNING - "Ignoring memory bank 0x%08lx size %ldKB\n", - start, end - start); - return -EINVAL; - } - sysmem.bank[sysmem.nr_banks].type = type; - sysmem.bank[sysmem.nr_banks].start = PAGE_ALIGN(start); - sysmem.bank[sysmem.nr_banks].end = end & PAGE_MASK; - sysmem.nr_banks++; - - return 0; -} - static int __init parse_tag_mem(const bp_tag_t *tag) { - meminfo_t *mi = (meminfo_t *)(tag->data); + struct bp_meminfo *mi = (struct bp_meminfo *)(tag->data); if (mi->type != MEMORY_TYPE_CONVENTIONAL) return -1; - return add_sysmem_bank(mi->type, mi->start, mi->end); + return add_sysmem_bank(mi->start, mi->end); } __tagtable(BP_TAG_MEMORY, parse_tag_mem); @@ -146,8 +124,8 @@ __tagtable(BP_TAG_MEMORY, parse_tag_mem); static int __init parse_tag_initrd(const bp_tag_t* tag) { - meminfo_t* mi; - mi = (meminfo_t*)(tag->data); + struct bp_meminfo *mi = (struct bp_meminfo *)(tag->data); + initrd_start = (unsigned long)__va(mi->start); initrd_end = (unsigned long)__va(mi->end); @@ -255,7 +233,7 @@ void __init early_init_dt_add_memory_arch(u64 base, u64 size) return; size &= PAGE_MASK; - add_sysmem_bank(MEMORY_TYPE_CONVENTIONAL, base, base + size); + add_sysmem_bank(base, base + size); } void * __init early_init_dt_alloc_memory_arch(u64 size, u64 align) @@ -292,8 +270,6 @@ device_initcall(xtensa_device_probe); void __init init_arch(bp_tag_t *bp_start) { - sysmem.nr_banks = 0; - /* Parse boot parameters */ if (bp_start) @@ -304,10 +280,9 @@ void __init init_arch(bp_tag_t *bp_start) #endif if (sysmem.nr_banks == 0) { - sysmem.nr_banks = 1; - sysmem.bank[0].start = PLATFORM_DEFAULT_MEM_START; - sysmem.bank[0].end = PLATFORM_DEFAULT_MEM_START - + PLATFORM_DEFAULT_MEM_SIZE; + add_sysmem_bank(PLATFORM_DEFAULT_MEM_START, + PLATFORM_DEFAULT_MEM_START + + PLATFORM_DEFAULT_MEM_SIZE); } #ifdef CONFIG_CMDLINE_BOOL |