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| author | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-05-09 12:56:01 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-05-09 12:56:01 -0700 |
| commit | aabded9c3aab5160ae2ca3dd1fa0fa37f3d510e4 (patch) | |
| tree | 8544d546735bcb975b8dec296eb9b6dc6531fb2a /arch/powerpc/mm/mem.c | |
| parent | 9a9136e270af14da506f66bcafcc506b86a86498 (diff) | |
| parent | f1a1eb299a8422c3e8d41753095bec44b2493398 (diff) | |
| download | lwn-aabded9c3aab5160ae2ca3dd1fa0fa37f3d510e4.tar.gz lwn-aabded9c3aab5160ae2ca3dd1fa0fa37f3d510e4.zip | |
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc
* 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc:
[POWERPC] Further fixes for the removal of 4level-fixup hack from ppc32
[POWERPC] EEH: log all PCI-X and PCI-E AER registers
[POWERPC] EEH: capture and log pci state on error
[POWERPC] EEH: Split up long error msg
[POWERPC] EEH: log error only after driver notification.
[POWERPC] fsl_soc: Make mac_addr const in fs_enet_of_init().
[POWERPC] Don't use SLAB/SLUB for PTE pages
[POWERPC] Spufs support for 64K LS mappings on 4K kernels
[POWERPC] Add ability to 4K kernel to hash in 64K pages
[POWERPC] Introduce address space "slices"
[POWERPC] Small fixes & cleanups in segment page size demotion
[POWERPC] iSeries: Make HVC_ISERIES the default
[POWERPC] iSeries: suppress build warning in lparmap.c
[POWERPC] Mark pages that don't exist as nosave
[POWERPC] swsusp: Introduce register_nosave_region_late
Diffstat (limited to 'arch/powerpc/mm/mem.c')
| -rw-r--r-- | arch/powerpc/mm/mem.c | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/arch/powerpc/mm/mem.c b/arch/powerpc/mm/mem.c index 1a6e08f3298f..246eeea40ece 100644 --- a/arch/powerpc/mm/mem.c +++ b/arch/powerpc/mm/mem.c @@ -31,6 +31,7 @@ #include <linux/highmem.h> #include <linux/initrd.h> #include <linux/pagemap.h> +#include <linux/suspend.h> #include <asm/pgalloc.h> #include <asm/prom.h> @@ -276,6 +277,28 @@ void __init do_init_bootmem(void) init_bootmem_done = 1; } +/* mark pages that don't exist as nosave */ +static int __init mark_nonram_nosave(void) +{ + unsigned long lmb_next_region_start_pfn, + lmb_region_max_pfn; + int i; + + for (i = 0; i < lmb.memory.cnt - 1; i++) { + lmb_region_max_pfn = + (lmb.memory.region[i].base >> PAGE_SHIFT) + + (lmb.memory.region[i].size >> PAGE_SHIFT); + lmb_next_region_start_pfn = + lmb.memory.region[i+1].base >> PAGE_SHIFT; + + if (lmb_region_max_pfn < lmb_next_region_start_pfn) + register_nosave_region(lmb_region_max_pfn, + lmb_next_region_start_pfn); + } + + return 0; +} + /* * paging_init() sets up the page tables - in fact we've already done this. */ @@ -307,6 +330,8 @@ void __init paging_init(void) max_zone_pfns[ZONE_DMA] = top_of_ram >> PAGE_SHIFT; #endif free_area_init_nodes(max_zone_pfns); + + mark_nonram_nosave(); } #endif /* ! CONFIG_NEED_MULTIPLE_NODES */ |