diff options
| author | Franck Bui-Huu <vagabon.xyz@gmail.com> | 2006-10-19 13:20:05 +0200 |
|---|---|---|
| committer | Ralf Baechle <ralf@linux-mips.org> | 2006-11-30 02:14:42 +0100 |
| commit | acd86b8622099c3206e0a1665545ae2318089b9c (patch) | |
| tree | f44acdcd2082538902dda48814d393e2c049eda1 /arch | |
| parent | [MIPS] setup.c: clean up initrd related code (diff) | |
| download | linux-acd86b8622099c3206e0a1665545ae2318089b9c.tar.xz linux-acd86b8622099c3206e0a1665545ae2318089b9c.zip | |
[MIPS] Make free_init_pages() arguments to be physical addresses
It allows caller of this function to not care about CKSEG0/XKPHYS
address mixes. It's now automatically done by free_init_pages().
We can now safely remove hack needed by 64 bit kernels with
CONFIG_BUILD_ELF64=n in free_initmem().
Signed-off-by: Franck Bui-Huu <fbuihuu@gmail.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/mips/mm/init.c | 33 |
1 files changed, 17 insertions, 16 deletions
diff --git a/arch/mips/mm/init.c b/arch/mips/mm/init.c index 4076963c601e..9e29ba9205f0 100644 --- a/arch/mips/mm/init.c +++ b/arch/mips/mm/init.c @@ -443,15 +443,18 @@ void __init mem_init(void) } #endif /* !CONFIG_NEED_MULTIPLE_NODES */ -void free_init_pages(char *what, unsigned long begin, unsigned long end) +static void free_init_pages(char *what, unsigned long begin, unsigned long end) { - unsigned long addr; + unsigned long pfn; - for (addr = begin; addr < end; addr += PAGE_SIZE) { - ClearPageReserved(virt_to_page((void *)addr)); - init_page_count(virt_to_page((void *)addr)); - memset((void *)addr, 0xcc, PAGE_SIZE); - free_page(addr); + for (pfn = PFN_UP(begin); pfn < PFN_DOWN(end); pfn++) { + struct page *page = pfn_to_page(pfn); + void *addr = phys_to_virt(PFN_PHYS(pfn)); + + ClearPageReserved(page); + init_page_count(page); + memset(addr, POISON_FREE_INITMEM, PAGE_SIZE); + __free_page(page); totalram_pages++; } printk(KERN_INFO "Freeing %s: %ldk freed\n", what, (end - begin) >> 10); @@ -460,7 +463,9 @@ void free_init_pages(char *what, unsigned long begin, unsigned long end) #ifdef CONFIG_BLK_DEV_INITRD void free_initrd_mem(unsigned long start, unsigned long end) { - free_init_pages("initrd memory", start, end); + free_init_pages("initrd memory", + virt_to_phys((void *)start), + virt_to_phys((void *)end)); } #endif @@ -468,17 +473,13 @@ extern unsigned long prom_free_prom_memory(void); void free_initmem(void) { - unsigned long start, end, freed; + unsigned long freed; freed = prom_free_prom_memory(); if (freed) printk(KERN_INFO "Freeing firmware memory: %ldk freed\n",freed); - start = (unsigned long)(&__init_begin); - end = (unsigned long)(&__init_end); -#ifdef CONFIG_64BIT - start = PAGE_OFFSET | CPHYSADDR(start); - end = PAGE_OFFSET | CPHYSADDR(end); -#endif - free_init_pages("unused kernel memory", start, end); + free_init_pages("unused kernel memory", + __pa_symbol(&__init_begin), + __pa_symbol(&__init_end)); } |