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Pull sparsemem-v5 into release branch

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This commit is contained in:
Tony Luck 2005-10-28 14:32:56 -07:00
commit c87ff94333
12 changed files with 1478 additions and 55 deletions
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94
arch/ia64/Kconfig
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@ -63,8 +63,6 @@ config IA64_GENERIC
select ACPI
select NUMA
select ACPI_NUMA
select VIRTUAL_MEM_MAP
select DISCONTIGMEM
help
This selects the system type of your hardware. A "generic" kernel
will run on any supported IA-64 system. However, if you configure
@ -176,40 +174,6 @@ config IA64_L1_CACHE_SHIFT
default "6" if ITANIUM
# align cache-sensitive data to 64 bytes
config NUMA
bool "NUMA support"
depends on !IA64_HP_SIM
default y if IA64_SGI_SN2
select ACPI_NUMA
help
Say Y to compile the kernel to support NUMA (Non-Uniform Memory
Access). This option is for configuring high-end multiprocessor
server systems. If in doubt, say N.
config VIRTUAL_MEM_MAP
bool "Virtual mem map"
default y if !IA64_HP_SIM
help
Say Y to compile the kernel with support for a virtual mem map.
This code also only takes effect if a memory hole of greater than
1 Gb is found during boot. You must turn this option on if you
require the DISCONTIGMEM option for your machine. If you are
unsure, say Y.
config HOLES_IN_ZONE
bool
default y if VIRTUAL_MEM_MAP
config ARCH_DISCONTIGMEM_ENABLE
bool "Discontiguous memory support"
depends on (IA64_DIG || IA64_SGI_SN2 || IA64_GENERIC || IA64_HP_ZX1 || IA64_HP_ZX1_SWIOTLB) && NUMA && VIRTUAL_MEM_MAP
default y if (IA64_SGI_SN2 || IA64_GENERIC) && NUMA
help
Say Y to support efficient handling of discontiguous physical memory,
for architectures which are either NUMA (Non-Uniform Memory Access)
or have huge holes in the physical address space for other reasons.
See <file:Documentation/vm/numa> for more.
config IA64_CYCLONE
bool "Cyclone (EXA) Time Source support"
help
@ -232,8 +196,10 @@ config IA64_SGI_SN_XP
based on a network adapter and DMA messaging.
config FORCE_MAX_ZONEORDER
int
default "18"
int "MAX_ORDER (11 - 17)" if !HUGETLB_PAGE
range 11 17 if !HUGETLB_PAGE
default "17" if HUGETLB_PAGE
default "11"
config SMP
bool "Symmetric multi-processing support"
@ -298,6 +264,58 @@ config PREEMPT
source "mm/Kconfig"
config ARCH_SELECT_MEMORY_MODEL
def_bool y
config ARCH_DISCONTIGMEM_ENABLE
def_bool y
help
Say Y to support efficient handling of discontiguous physical memory,
for architectures which are either NUMA (Non-Uniform Memory Access)
or have huge holes in the physical address space for other reasons.
See <file:Documentation/vm/numa> for more.
config ARCH_FLATMEM_ENABLE
def_bool y
config ARCH_SPARSEMEM_ENABLE
def_bool y
depends on ARCH_DISCONTIGMEM_ENABLE
config ARCH_DISCONTIGMEM_DEFAULT
def_bool y if (IA64_SGI_SN2 || IA64_GENERIC || IA64_HP_ZX1 || IA64_HP_ZX1_SWIOTLB)
depends on ARCH_DISCONTIGMEM_ENABLE
config NUMA
bool "NUMA support"
depends on !IA64_HP_SIM && !FLATMEM
default y if IA64_SGI_SN2
help
Say Y to compile the kernel to support NUMA (Non-Uniform Memory
Access). This option is for configuring high-end multiprocessor
server systems. If in doubt, say N.
# VIRTUAL_MEM_MAP and FLAT_NODE_MEM_MAP are functionally equivalent.
# VIRTUAL_MEM_MAP has been retained for historical reasons.
config VIRTUAL_MEM_MAP
bool "Virtual mem map"
depends on !SPARSEMEM
default y if !IA64_HP_SIM
help
Say Y to compile the kernel with support for a virtual mem map.
This code also only takes effect if a memory hole of greater than
1 Gb is found during boot. You must turn this option on if you
require the DISCONTIGMEM option for your machine. If you are
unsure, say Y.
config HOLES_IN_ZONE
bool
default y if VIRTUAL_MEM_MAP
config HAVE_ARCH_EARLY_PFN_TO_NID
def_bool y
depends on NEED_MULTIPLE_NODES
config IA32_SUPPORT
bool "Support for Linux/x86 binaries"
help

1319
arch/ia64/configs/gensparse_defconfig Normal file
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File diff suppressed because it is too large Load Diff

5
arch/ia64/mm/Makefile
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@ -7,6 +7,5 @@ obj-y := init.o fault.o tlb.o extable.o
obj-$(CONFIG_HUGETLB_PAGE) += hugetlbpage.o
obj-$(CONFIG_NUMA) += numa.o
obj-$(CONFIG_DISCONTIGMEM) += discontig.o
ifndef CONFIG_DISCONTIGMEM
obj-y += contig.o
endif
obj-$(CONFIG_SPARSEMEM) += discontig.o
obj-$(CONFIG_FLATMEM) += contig.o

4
arch/ia64/mm/contig.c
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@ -269,7 +269,7 @@ paging_init (void)
efi_memmap_walk(find_largest_hole, (u64 *)&max_gap);
if (max_gap < LARGE_GAP) {
vmem_map = (struct page *) 0;
free_area_init_node(0, &contig_page_data, zones_size, 0,
free_area_init_node(0, NODE_DATA(0), zones_size, 0,
zholes_size);
} else {
unsigned long map_size;
@ -282,7 +282,7 @@ paging_init (void)
efi_memmap_walk(create_mem_map_page_table, NULL);
NODE_DATA(0)->node_mem_map = vmem_map;
free_area_init_node(0, &contig_page_data, zones_size,
free_area_init_node(0, NODE_DATA(0), zones_size,
0, zholes_size);
printk("Virtual mem_map starts at 0x%p\n", mem_map);

43
arch/ia64/mm/discontig.c
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@ -421,6 +421,37 @@ static void __init memory_less_nodes(void)
return;
}
#ifdef CONFIG_SPARSEMEM
/**
* register_sparse_mem - notify SPARSEMEM that this memory range exists.
* @start: physical start of range
* @end: physical end of range
* @arg: unused
*
* Simply calls SPARSEMEM to register memory section(s).
*/
static int __init register_sparse_mem(unsigned long start, unsigned long end,
void *arg)
{
int nid;
start = __pa(start) >> PAGE_SHIFT;
end = __pa(end) >> PAGE_SHIFT;
nid = early_pfn_to_nid(start);
memory_present(nid, start, end);
return 0;
}
static void __init arch_sparse_init(void)
{
efi_memmap_walk(register_sparse_mem, NULL);
sparse_init();
}
#else
#define arch_sparse_init() do {} while (0)
#endif
/**
* find_memory - walk the EFI memory map and setup the bootmem allocator
*
@ -528,8 +559,10 @@ void show_mem(void)
int shared = 0, cached = 0, reserved = 0;
printk("Node ID: %d\n", pgdat->node_id);
for(i = 0; i < pgdat->node_spanned_pages; i++) {
struct page *page = pgdat_page_nr(pgdat, i);
if (!ia64_pfn_valid(pgdat->node_start_pfn+i))
struct page *page;
if (pfn_valid(pgdat->node_start_pfn + i))
page = pfn_to_page(pgdat->node_start_pfn + i);
else
continue;
if (PageReserved(page))
reserved++;
@ -648,12 +681,16 @@ void __init paging_init(void)
max_dma = virt_to_phys((void *) MAX_DMA_ADDRESS) >> PAGE_SHIFT;
arch_sparse_init();
efi_memmap_walk(filter_rsvd_memory, count_node_pages);
#ifdef CONFIG_VIRTUAL_MEM_MAP
vmalloc_end -= PAGE_ALIGN(max_low_pfn * sizeof(struct page));
vmem_map = (struct page *) vmalloc_end;
efi_memmap_walk(create_mem_map_page_table, NULL);
printk("Virtual mem_map starts at 0x%p\n", vmem_map);
#endif
for_each_online_node(node) {
memset(zones_size, 0, sizeof(zones_size));
@ -690,7 +727,9 @@ void __init paging_init(void)
pfn_offset = mem_data[node].min_pfn;
#ifdef CONFIG_VIRTUAL_MEM_MAP
NODE_DATA(node)->node_mem_map = vmem_map + pfn_offset;
#endif
free_area_init_node(node, NODE_DATA(node), zones_size,
pfn_offset, zholes_size);
}

2
arch/ia64/mm/init.c
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@ -593,7 +593,7 @@ mem_init (void)
platform_dma_init();
#endif
#ifndef CONFIG_DISCONTIGMEM
#ifdef CONFIG_FLATMEM
if (!mem_map)
BUG();
max_mapnr = max_low_pfn;

24
arch/ia64/mm/numa.c
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@ -47,3 +47,27 @@ paddr_to_nid(unsigned long paddr)
return (i < num_node_memblks) ? node_memblk[i].nid : (num_node_memblks ? -1 : 0);
}
#if defined(CONFIG_SPARSEMEM) && defined(CONFIG_NUMA)
/*
* Because of holes evaluate on section limits.
* If the section of memory exists, then return the node where the section
* resides. Otherwise return node 0 as the default. This is used by
* SPARSEMEM to allocate the SPARSEMEM sectionmap on the NUMA node where
* the section resides.
*/
int early_pfn_to_nid(unsigned long pfn)
{
int i, section = pfn >> PFN_SECTION_SHIFT, ssec, esec;
for (i = 0; i < num_node_memblks; i++) {
ssec = node_memblk[i].start_paddr >> PA_SECTION_SHIFT;
esec = (node_memblk[i].start_paddr + node_memblk[i].size +
((1L << PA_SECTION_SHIFT) - 1)) >> PA_SECTION_SHIFT;
if (section >= ssec && section < esec)
return node_memblk[i].nid;
}
return 0;
}
#endif

2
include/asm-ia64/meminit.h
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@ -43,7 +43,7 @@ extern void efi_memmap_init(unsigned long *, unsigned long *);
#define GRANULEROUNDUP(n) (((n)+IA64_GRANULE_SIZE-1) & ~(IA64_GRANULE_SIZE-1))
#define ORDERROUNDDOWN(n) ((n) & ~((PAGE_SIZE<<MAX_ORDER)-1))
#ifdef CONFIG_DISCONTIGMEM
#ifdef CONFIG_NUMA
extern void call_pernode_memory (unsigned long start, unsigned long len, void *func);
#else
# define call_pernode_memory(start, len, func) (*func)(start, len, 0)

10
include/asm-ia64/mmzone.h
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@ -15,7 +15,7 @@
#include <asm/page.h>
#include <asm/meminit.h>
#ifdef CONFIG_DISCONTIGMEM
#ifdef CONFIG_NUMA
static inline int pfn_to_nid(unsigned long pfn)
{
@ -31,6 +31,10 @@ static inline int pfn_to_nid(unsigned long pfn)
#endif
}
#ifdef CONFIG_HAVE_ARCH_EARLY_PFN_TO_NID
extern int early_pfn_to_nid(unsigned long pfn);
#endif
#ifdef CONFIG_IA64_DIG /* DIG systems are small */
# define MAX_PHYSNODE_ID 8
# define NR_NODE_MEMBLKS (MAX_NUMNODES * 8)
@ -39,8 +43,8 @@ static inline int pfn_to_nid(unsigned long pfn)
# define NR_NODE_MEMBLKS (MAX_NUMNODES * 4)
#endif
#else /* CONFIG_DISCONTIGMEM */
#else /* CONFIG_NUMA */
# define NR_NODE_MEMBLKS (MAX_NUMNODES * 4)
#endif /* CONFIG_DISCONTIGMEM */
#endif /* CONFIG_NUMA */
#endif /* _ASM_IA64_MMZONE_H */

4
include/asm-ia64/nodedata.h
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@ -17,7 +17,7 @@
#include <asm/percpu.h>
#include <asm/mmzone.h>
#ifdef CONFIG_DISCONTIGMEM
#ifdef CONFIG_NUMA
/*
* Node Data. One of these structures is located on each node of a NUMA system.
@ -47,6 +47,6 @@ struct ia64_node_data {
*/
#define NODE_DATA(nid) (local_node_data->pg_data_ptrs[nid])
#endif /* CONFIG_DISCONTIGMEM */
#endif /* CONFIG_NUMA */
#endif /* _ASM_IA64_NODEDATA_H */

6
include/asm-ia64/page.h
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@ -102,15 +102,15 @@ do { \
#ifdef CONFIG_VIRTUAL_MEM_MAP
extern int ia64_pfn_valid (unsigned long pfn);
#else
#elif defined(CONFIG_FLATMEM)
# define ia64_pfn_valid(pfn) 1
#endif
#ifndef CONFIG_DISCONTIGMEM
#ifdef CONFIG_FLATMEM
# define pfn_valid(pfn) (((pfn) < max_mapnr) && ia64_pfn_valid(pfn))
# define page_to_pfn(page) ((unsigned long) (page - mem_map))
# define pfn_to_page(pfn) (mem_map + (pfn))
#else
#elif defined(CONFIG_DISCONTIGMEM)
extern struct page *vmem_map;
extern unsigned long max_low_pfn;
# define pfn_valid(pfn) (((pfn) < max_low_pfn) && ia64_pfn_valid(pfn))

20
include/asm-ia64/sparsemem.h Normal file
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@ -0,0 +1,20 @@
#ifndef _ASM_IA64_SPARSEMEM_H
#define _ASM_IA64_SPARSEMEM_H
#ifdef CONFIG_SPARSEMEM
/*
* SECTION_SIZE_BITS 2^N: how big each section will be
* MAX_PHYSMEM_BITS 2^N: how much memory we can have in that space
*/
#define SECTION_SIZE_BITS (30)
#define MAX_PHYSMEM_BITS (50)
#ifdef CONFIG_FORCE_MAX_ZONEORDER
#if ((CONFIG_FORCE_MAX_ZONEORDER - 1 + PAGE_SHIFT) > SECTION_SIZE_BITS)
#undef SECTION_SIZE_BITS
#define SECTION_SIZE_BITS (CONFIG_FORCE_MAX_ZONEORDER - 1 + PAGE_SHIFT)
#endif
#endif
#endif /* CONFIG_SPARSEMEM */
#endif /* _ASM_IA64_SPARSEMEM_H */