diff options
author | Paul Mackerras <paulus@samba.org> | 2008-01-24 04:29:14 (GMT) |
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committer | Paul Mackerras <paulus@samba.org> | 2008-01-24 04:29:14 (GMT) |
commit | dcb571be2019ae677bc5ed64437dbc87ae1eb67f (patch) | |
tree | 1b93f9ea3568be4dcc49ffb2adc0d3ab0a02b47f /arch/powerpc/mm | |
parent | 9156ad48338e0306e508ead5c0d9986050744475 (diff) | |
parent | 96f39c1718091d63dc1c5012d566737ea0d2a20c (diff) | |
download | linux-fsl-qoriq-dcb571be2019ae677bc5ed64437dbc87ae1eb67f.tar.xz |
Merge branch 'for-2.6.25' of master.kernel.org:/pub/scm/linux/kernel/git/galak/powerpc into for-2.6.25
Diffstat (limited to 'arch/powerpc/mm')
-rw-r--r-- | arch/powerpc/mm/fsl_booke_mmu.c | 6 | ||||
-rw-r--r-- | arch/powerpc/mm/lmb.c | 13 | ||||
-rw-r--r-- | arch/powerpc/mm/mem.c | 21 |
3 files changed, 35 insertions, 5 deletions
diff --git a/arch/powerpc/mm/fsl_booke_mmu.c b/arch/powerpc/mm/fsl_booke_mmu.c index 17139da..c93a966 100644 --- a/arch/powerpc/mm/fsl_booke_mmu.c +++ b/arch/powerpc/mm/fsl_booke_mmu.c @@ -165,15 +165,15 @@ void invalidate_tlbcam_entry(int index) void __init cam_mapin_ram(unsigned long cam0, unsigned long cam1, unsigned long cam2) { - settlbcam(0, KERNELBASE, PPC_MEMSTART, cam0, _PAGE_KERNEL, 0); + settlbcam(0, PAGE_OFFSET, PPC_MEMSTART, cam0, _PAGE_KERNEL, 0); tlbcam_index++; if (cam1) { tlbcam_index++; - settlbcam(1, KERNELBASE+cam0, PPC_MEMSTART+cam0, cam1, _PAGE_KERNEL, 0); + settlbcam(1, PAGE_OFFSET+cam0, PPC_MEMSTART+cam0, cam1, _PAGE_KERNEL, 0); } if (cam2) { tlbcam_index++; - settlbcam(2, KERNELBASE+cam0+cam1, PPC_MEMSTART+cam0+cam1, cam2, _PAGE_KERNEL, 0); + settlbcam(2, PAGE_OFFSET+cam0+cam1, PPC_MEMSTART+cam0+cam1, cam2, _PAGE_KERNEL, 0); } } diff --git a/arch/powerpc/mm/lmb.c b/arch/powerpc/mm/lmb.c index 8f4d2dc..4ce23bc 100644 --- a/arch/powerpc/mm/lmb.c +++ b/arch/powerpc/mm/lmb.c @@ -342,3 +342,16 @@ void __init lmb_enforce_memory_limit(unsigned long memory_limit) } } } + +int __init lmb_is_reserved(unsigned long addr) +{ + int i; + + for (i = 0; i < lmb.reserved.cnt; i++) { + unsigned long upper = lmb.reserved.region[i].base + + lmb.reserved.region[i].size - 1; + if ((addr >= lmb.reserved.region[i].base) && (addr <= upper)) + return 1; + } + return 0; +} diff --git a/arch/powerpc/mm/mem.c b/arch/powerpc/mm/mem.c index 5402fb6b..e812244 100644 --- a/arch/powerpc/mm/mem.c +++ b/arch/powerpc/mm/mem.c @@ -213,15 +213,30 @@ void __init do_init_bootmem(void) */ #ifdef CONFIG_HIGHMEM free_bootmem_with_active_regions(0, total_lowmem >> PAGE_SHIFT); + + /* reserve the sections we're already using */ + for (i = 0; i < lmb.reserved.cnt; i++) { + unsigned long addr = lmb.reserved.region[i].base + + lmb_size_bytes(&lmb.reserved, i) - 1; + if (addr < total_lowmem) + reserve_bootmem(lmb.reserved.region[i].base, + lmb_size_bytes(&lmb.reserved, i)); + else if (lmb.reserved.region[i].base < total_lowmem) { + unsigned long adjusted_size = total_lowmem - + lmb.reserved.region[i].base; + reserve_bootmem(lmb.reserved.region[i].base, + adjusted_size); + } + } #else free_bootmem_with_active_regions(0, max_pfn); -#endif /* reserve the sections we're already using */ for (i = 0; i < lmb.reserved.cnt; i++) reserve_bootmem(lmb.reserved.region[i].base, lmb_size_bytes(&lmb.reserved, i)); +#endif /* XXX need to clip this if using highmem? */ sparse_memory_present_with_active_regions(0); @@ -334,11 +349,13 @@ void __init mem_init(void) highmem_mapnr = total_lowmem >> PAGE_SHIFT; for (pfn = highmem_mapnr; pfn < max_mapnr; ++pfn) { struct page *page = pfn_to_page(pfn); - + if (lmb_is_reserved(pfn << PAGE_SHIFT)) + continue; ClearPageReserved(page); init_page_count(page); __free_page(page); totalhigh_pages++; + reservedpages--; } totalram_pages += totalhigh_pages; printk(KERN_DEBUG "High memory: %luk\n", |