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Date: Sat, 6 Apr 2013 22:32:34 +0800
From: Jiang Liu <liuj97@...il.com>
To: Andrew Morton <akpm@...ux-foundation.org>
Cc: Jiang Liu <jiang.liu@...wei.com>,
David Rientjes <rientjes@...gle.com>,
Wen Congyang <wency@...fujitsu.com>,
Mel Gorman <mgorman@...e.de>, Minchan Kim <minchan@...nel.org>,
KAMEZAWA Hiroyuki <kamezawa.hiroyu@...fujitsu.com>,
Michal Hocko <mhocko@...e.cz>,
James Bottomley <James.Bottomley@...senPartnership.com>,
Sergei Shtylyov <sergei.shtylyov@...entembedded.com>,
David Howells <dhowells@...hat.com>,
Mark Salter <msalter@...hat.com>,
Jianguo Wu <wujianguo@...wei.com>, linux-mm@...ck.org,
linux-arch@...r.kernel.org, linux-kernel@...r.kernel.org,
"David S. Miller" <davem@...emloft.net>,
Sam Ravnborg <sam@...nborg.org>,
Yasuaki Ishimatsu <isimatu.yasuaki@...fujitsu.com>,
Tang Chen <tangchen@...fujitsu.com>, sparclinux@...r.kernel.org
Subject: [PATCH v4, part3 35/41] mm/SPARC: prepare for removing num_physpages and simplify mem_init()
Prepare for removing num_physpages and simplify mem_init().
Signed-off-by: Jiang Liu <jiang.liu@...wei.com>
Cc: "David S. Miller" <davem@...emloft.net>
Cc: Sam Ravnborg <sam@...nborg.org>
Cc: Yasuaki Ishimatsu <isimatu.yasuaki@...fujitsu.com>
Cc: Tang Chen <tangchen@...fujitsu.com>
Cc: sparclinux@...r.kernel.org
Cc: linux-kernel@...r.kernel.org
---
arch/sparc/kernel/leon_smp.c | 3 ---
arch/sparc/mm/init_32.c | 33 +++------------------------------
arch/sparc/mm/init_64.c | 23 ++---------------------
3 files changed, 5 insertions(+), 54 deletions(-)
diff --git a/arch/sparc/kernel/leon_smp.c b/arch/sparc/kernel/leon_smp.c
index 6cfc1b0..d7aa524 100644
--- a/arch/sparc/kernel/leon_smp.c
+++ b/arch/sparc/kernel/leon_smp.c
@@ -254,15 +254,12 @@ void __init leon_smp_done(void)
/* Free unneeded trap tables */
if (!cpu_present(1)) {
free_reserved_page(virt_to_page(&trapbase_cpu1));
- num_physpages++;
}
if (!cpu_present(2)) {
free_reserved_page(virt_to_page(&trapbase_cpu2));
- num_physpages++;
}
if (!cpu_present(3)) {
free_reserved_page(virt_to_page(&trapbase_cpu3));
- num_physpages++;
}
/* Ok, they are spinning and ready to go. */
smp_processors_ready = 1;
diff --git a/arch/sparc/mm/init_32.c b/arch/sparc/mm/init_32.c
index e96afed..25d10cf 100644
--- a/arch/sparc/mm/init_32.c
+++ b/arch/sparc/mm/init_32.c
@@ -288,10 +288,6 @@ static void map_high_region(unsigned long start_pfn, unsigned long end_pfn)
void __init mem_init(void)
{
- int codepages = 0;
- int datapages = 0;
- int initpages = 0;
- int reservedpages = 0;
int i;
if (PKMAP_BASE+LAST_PKMAP*PAGE_SIZE >= FIXADDR_START) {
@@ -329,8 +325,6 @@ void __init mem_init(void)
unsigned long start_pfn = sp_banks[i].base_addr >> PAGE_SHIFT;
unsigned long end_pfn = (sp_banks[i].base_addr + sp_banks[i].num_bytes) >> PAGE_SHIFT;
- num_physpages += sp_banks[i].num_bytes >> PAGE_SHIFT;
-
if (end_pfn <= highstart_pfn)
continue;
@@ -340,39 +334,18 @@ void __init mem_init(void)
map_high_region(start_pfn, end_pfn);
}
- codepages = (((unsigned long) &_etext) - ((unsigned long)&_start));
- codepages = PAGE_ALIGN(codepages) >> PAGE_SHIFT;
- datapages = (((unsigned long) &_edata) - ((unsigned long)&_etext));
- datapages = PAGE_ALIGN(datapages) >> PAGE_SHIFT;
- initpages = (((unsigned long) &__init_end) - ((unsigned long) &__init_begin));
- initpages = PAGE_ALIGN(initpages) >> PAGE_SHIFT;
-
- /* Ignore memory holes for the purpose of counting reserved pages */
- for (i=0; i < max_low_pfn; i++)
- if (test_bit(i >> (20 - PAGE_SHIFT), sparc_valid_addr_bitmap)
- && PageReserved(pfn_to_page(i)))
- reservedpages++;
-
- printk(KERN_INFO "Memory: %luk/%luk available (%dk kernel code, %dk reserved, %dk data, %dk init, %ldk highmem)\n",
- nr_free_pages() << (PAGE_SHIFT-10),
- num_physpages << (PAGE_SHIFT - 10),
- codepages << (PAGE_SHIFT-10),
- reservedpages << (PAGE_SHIFT - 10),
- datapages << (PAGE_SHIFT-10),
- initpages << (PAGE_SHIFT-10),
- totalhigh_pages << (PAGE_SHIFT-10));
+ mem_init_print_info(NULL);
}
void free_initmem (void)
{
- num_physpages += free_initmem_default(POISON_FREE_INITMEM);
+ free_initmem_default(POISON_FREE_INITMEM);
}
#ifdef CONFIG_BLK_DEV_INITRD
void free_initrd_mem(unsigned long start, unsigned long end)
{
- num_physpages += free_reserved_area(start, end, POISON_FREE_INITMEM,
- "initrd");
+ free_reserved_area(start, end, POISON_FREE_INITMEM, "initrd");
}
#endif
diff --git a/arch/sparc/mm/init_64.c b/arch/sparc/mm/init_64.c
index 541a3bc..b1e35b7 100644
--- a/arch/sparc/mm/init_64.c
+++ b/arch/sparc/mm/init_64.c
@@ -2039,7 +2039,6 @@ static void __init register_page_bootmem_info(void)
}
void __init mem_init(void)
{
- unsigned long codepages, datapages, initpages;
unsigned long addr, last;
addr = PAGE_OFFSET + kern_base;
@@ -2057,11 +2056,6 @@ void __init mem_init(void)
register_page_bootmem_info();
free_all_bootmem();
- /* We subtract one to account for the mem_map_zero page
- * allocated below.
- */
- num_physpages = totalram_pages - 1;
-
/*
* Set up the zero page, mark it reserved, so that page count
* is not manipulated when freeing the page from user ptes.
@@ -2073,19 +2067,7 @@ void __init mem_init(void)
}
mark_page_reserved(mem_map_zero);
- codepages = (((unsigned long) _etext) - ((unsigned long) _start));
- codepages = PAGE_ALIGN(codepages) >> PAGE_SHIFT;
- datapages = (((unsigned long) _edata) - ((unsigned long) _etext));
- datapages = PAGE_ALIGN(datapages) >> PAGE_SHIFT;
- initpages = (((unsigned long) __init_end) - ((unsigned long) __init_begin));
- initpages = PAGE_ALIGN(initpages) >> PAGE_SHIFT;
-
- printk("Memory: %luk available (%ldk kernel code, %ldk data, %ldk init) [%016lx,%016lx]\n",
- nr_free_pages() << (PAGE_SHIFT-10),
- codepages << (PAGE_SHIFT-10),
- datapages << (PAGE_SHIFT-10),
- initpages << (PAGE_SHIFT-10),
- PAGE_OFFSET, (last_valid_pfn << PAGE_SHIFT));
+ mem_init_print_info(NULL);
if (tlb_type == cheetah || tlb_type == cheetah_plus)
cheetah_ecache_flush_init();
@@ -2125,8 +2107,7 @@ void free_initmem(void)
#ifdef CONFIG_BLK_DEV_INITRD
void free_initrd_mem(unsigned long start, unsigned long end)
{
- num_physpages += free_reserved_area(start, end, POISON_FREE_INITMEM,
- "initrd");
+ free_reserved_area(start, end, POISON_FREE_INITMEM, "initrd");
}
#endif
--
1.7.9.5
--
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