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msm: Update the kernel log messages

Browse source 
After reclaiming vmalloc and adjusting lowmem, the two
regions are no longer contiguous. Update the messages
printed during bootup to list all regions corresponding
to low memory and vmalloc respectively.

Change-Id: Ib3e25b530b3dfbd1f9796cdc580fb79da484e850
Signed-off-by: Susheel Khiani <skhiani@codeaurora.org>
Signed-off-by: Zhenhua Huang <zhenhuah@codeaurora.org>
Signed-off-by: Qingqing Zhou <qqzhou@codeaurora.org>
This commit is contained in:
Susheel Khiani 2015-09-08 12:34:11 +05:30 • committed by Gerrit - the friendly Code Review server
commit a4b56a2c05
2 changed files with 105 additions and 0 deletions
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100
arch/arm/mm/init.c
View file

@ -462,6 +462,56 @@ static void __init free_highpages(void)
#endif
}
#define MLK(b, t) (b), (t), (((t) - (b)) >> 10)
#define MLM(b, t) (b), (t), (((t) - (b)) >> 20)
#define MLK_ROUNDUP(b, t) (b), (t), (DIV_ROUND_UP(((t) - (b)), SZ_1K))
#ifdef CONFIG_ENABLE_VMALLOC_SAVING
static void print_vmalloc_lowmem_info(void)
{
struct memblock_region *reg, *prev_reg = NULL;
pr_notice(
" vmalloc : 0x%08lx - 0x%08lx (%4ld MB)\n",
MLM((unsigned long)high_memory, VMALLOC_END));
for_each_memblock_rev(memory, reg) {
phys_addr_t start_phys = reg->base;
phys_addr_t end_phys = reg->base + reg->size;
if (start_phys > arm_lowmem_limit)
continue;
if (end_phys > arm_lowmem_limit)
end_phys = arm_lowmem_limit;
if (prev_reg == NULL) {
prev_reg = reg;
pr_notice(
" lowmem : 0x%08lx - 0x%08lx (%4ld MB)\n",
MLM((unsigned long)__va(start_phys),
(unsigned long)__va(end_phys)));
continue;
}
pr_notice(
" vmalloc : 0x%08lx - 0x%08lx (%4ld MB)\n",
MLM((unsigned long)__va(end_phys),
(unsigned long)__va(prev_reg->base)));
pr_notice(
" lowmem : 0x%08lx - 0x%08lx (%4ld MB)\n",
MLM((unsigned long)__va(start_phys),
(unsigned long)__va(end_phys)));
prev_reg = reg;
}
}
#endif
/*
* mem_init() marks the free areas in the mem_map and tells us how much
* memory is free. This is done after various parts of the system have
@ -488,6 +538,52 @@ void __init mem_init(void)
mem_init_print_info(NULL);
pr_notice("Virtual kernel memory layout:\n"
" vector : 0x%08lx - 0x%08lx (%4ld kB)\n"
#ifdef CONFIG_HAVE_TCM
" DTCM : 0x%08lx - 0x%08lx (%4ld kB)\n"
" ITCM : 0x%08lx - 0x%08lx (%4ld kB)\n"
#endif
" fixmap : 0x%08lx - 0x%08lx (%4ld kB)\n",
MLK(VECTORS_BASE, VECTORS_BASE + PAGE_SIZE),
#ifdef CONFIG_HAVE_TCM
MLK(DTCM_OFFSET, (unsigned long) dtcm_end),
MLK(ITCM_OFFSET, (unsigned long) itcm_end),
#endif
MLK(FIXADDR_START, FIXADDR_END));
#ifdef CONFIG_ENABLE_VMALLOC_SAVING
print_vmalloc_lowmem_info();
#else
pr_notice(
" vmalloc : 0x%08lx - 0x%08lx (%4ld MB)\n"
" lowmem : 0x%08lx - 0x%08lx (%4ld MB)\n",
MLM(VMALLOC_START, VMALLOC_END),
MLM(PAGE_OFFSET, (unsigned long)high_memory));
#endif
pr_notice(
#ifdef CONFIG_HIGHMEM
" pkmap : 0x%08lx - 0x%08lx (%4ld MB)\n"
#endif
#ifdef CONFIG_MODULES
" modules : 0x%08lx - 0x%08lx (%4ld MB)\n"
#endif
" .text : 0x%pK - 0x%pK (%4d kB)\n"
" .init : 0x%pK - 0x%pK (%4d kB)\n"
" .data : 0x%pK - 0x%pK (%4d kB)\n"
" .bss : 0x%pK - 0x%pK (%4d kB)\n",
#ifdef CONFIG_HIGHMEM
MLM(PKMAP_BASE, (PKMAP_BASE) + (LAST_PKMAP) *
(PAGE_SIZE)),
#endif
#ifdef CONFIG_MODULES
MLM(MODULES_VADDR, MODULES_END),
#endif
MLK_ROUNDUP(_text, _etext),
MLK_ROUNDUP(__init_begin, __init_end),
MLK_ROUNDUP(_sdata, _edata),
MLK_ROUNDUP(__bss_start, __bss_stop));
/*
* Check boundaries twice: Some fundamental inconsistencies can
* be detected at build time already.
@ -503,6 +599,10 @@ void __init mem_init(void)
#endif
}
#undef MLK
#undef MLM
#undef MLK_ROUNDUP
#ifdef CONFIG_STRICT_KERNEL_RWX
struct section_perm {
const char *name;

5
include/linux/memblock.h
View file

@ -534,6 +534,11 @@ static inline unsigned long memblock_region_reserved_end_pfn(const struct memblo
for (i = 0, rgn = &memblock_type->regions[0]; \
i < memblock_type->cnt; \
i++, rgn = &memblock_type->regions[i])
#define for_each_memblock_rev(memblock_type, region) \
for (region = memblock.memblock_type.regions + \
memblock.memblock_type.cnt - 1; \
region >= memblock.memblock_type.regions; \
region--)
extern void *alloc_large_system_hash(const char *tablename,
unsigned long bucketsize,