diff options
| author | Richard Braun <rbraun@sceen.net> | 2012-10-15 20:53:44 +0200 |
|---|---|---|
| committer | Richard Braun <rbraun@sceen.net> | 2012-10-15 20:53:44 +0200 |
| commit | 73378a3e526d2425ff8079a24b3604a8119d5128 (patch) | |
| tree | 3823374ce74f503ab7cbd90454c598ef8d9d4488 | |
| parent | b99d56d88ac4c245e5dad7ebe893436f88fac202 (diff) | |
x86/param: update physical memory configuration
Add amd64 properties, and increase PAE limit to 52 bits.
| -rw-r--r-- | arch/x86/machine/biosmem.c | 12 | ||||
| -rw-r--r-- | arch/x86/machine/param.h | 21 |
2 files changed, 16 insertions, 17 deletions
diff --git a/arch/x86/machine/biosmem.c b/arch/x86/machine/biosmem.c index ad80afa6..77bc8d0c 100644 --- a/arch/x86/machine/biosmem.c +++ b/arch/x86/machine/biosmem.c @@ -504,10 +504,10 @@ biosmem_map_find_avail(phys_addr_t *phys_start, phys_addr_t *phys_end) if (entry->type != BIOSMEM_TYPE_AVAILABLE) continue; -#ifndef PAE +#ifndef VM_PHYS_HIGHMEM_LIMIT if (entry->base_addr >= VM_PHYS_NORMAL_LIMIT) break; -#endif /* PAE */ +#endif /* VM_PHYS_HIGHMEM_LIMIT */ start = vm_page_round(entry->base_addr); @@ -516,10 +516,10 @@ biosmem_map_find_avail(phys_addr_t *phys_start, phys_addr_t *phys_end) entry_end = entry->base_addr + entry->length; -#ifndef PAE +#ifndef VM_PHYS_HIGHMEM_LIMIT if (entry_end > VM_PHYS_NORMAL_LIMIT) entry_end = VM_PHYS_NORMAL_LIMIT; -#endif /* PAE */ +#endif /* VM_PHYS_HIGHMEM_LIMIT */ end = vm_page_trunc(entry_end); @@ -577,7 +577,7 @@ biosmem_setup(void) biosmem_heap_free, biosmem_heap_end, VM_PHYS_SEGLIST_NORMAL); -#ifdef PAE +#ifdef VM_PHYS_HIGHMEM_LIMIT phys_start = VM_PHYS_NORMAL_LIMIT; phys_end = VM_PHYS_HIGHMEM_LIMIT; error = biosmem_map_find_avail(&phys_start, &phys_end); @@ -585,7 +585,7 @@ biosmem_setup(void) if (!error) biosmem_load_segment("highmem", phys_start, phys_end, phys_start, phys_end, VM_PHYS_SEGLIST_HIGHMEM); -#endif /* PAE */ +#endif /* VM_PHYS_HIGHMEM_LIMIT */ } static void __init diff --git a/arch/x86/machine/param.h b/arch/x86/machine/param.h index ffa0ff7e..814e71b8 100644 --- a/arch/x86/machine/param.h +++ b/arch/x86/machine/param.h @@ -87,13 +87,22 @@ #endif /* __LP64__ */ /* - * Maximum number of physical segments. + * Physical memory properties. */ +#ifdef __LP64__ +#define VM_MAX_PHYS_SEG 2 +#define VM_PHYS_NORMAL_LIMIT DECL_CONST(0x100000000, UL) +#define VM_PHYS_HIGHMEM_LIMIT DECL_CONST(0x10000000000000, UL) +#else /* __LP64__ */ #ifdef PAE #define VM_MAX_PHYS_SEG 2 +#define VM_PHYS_NORMAL_LIMIT DECL_CONST(0x100000000, ULL) +#define VM_PHYS_HIGHMEM_LIMIT DECL_CONST(0x10000000000000, ULL) #else /* PAE */ #define VM_MAX_PHYS_SEG 1 +#define VM_PHYS_NORMAL_LIMIT DECL_CONST(0xfffff000, UL) #endif /* PAE */ +#endif /* __LP64__ */ /* * Number of physical segment lists. @@ -107,16 +116,6 @@ #define VM_PHYS_SEGLIST_NORMAL 0 /* - * Segment boundaries. - */ -#ifdef PAE -#define VM_PHYS_NORMAL_LIMIT DECL_CONST(0x100000000, ULL) -#define VM_PHYS_HIGHMEM_LIMIT DECL_CONST(0x1000000000, ULL) -#else /* PAE */ -#define VM_PHYS_NORMAL_LIMIT DECL_CONST(0xfffff000, UL) -#endif /* PAE */ - -/* * Virtual space reserved for kernel map entries. */ #define VM_MAP_KENTRY_SIZE DECL_CONST(0x800000, UL) |