ARM: Remove DISCONTIGMEM support
Everything should now be using sparsemem rather than discontigmem, so
remove the code supporting discontigmem from ARM.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 98922f7..410edd6 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -719,7 +719,6 @@
config ARCH_LH7A40X
bool "Sharp LH7A40X"
select CPU_ARM922T
- select ARCH_DISCONTIGMEM_ENABLE if !LH7A40X_CONTIGMEM
select ARCH_SPARSEMEM_ENABLE if !LH7A40X_CONTIGMEM
select ARCH_USES_GETTIMEOFFSET
help
@@ -1241,10 +1240,6 @@
config ARCH_HAS_HOLES_MEMORYMODEL
bool
-# Discontigmem is deprecated
-config ARCH_DISCONTIGMEM_ENABLE
- bool
-
config ARCH_SPARSEMEM_ENABLE
bool
@@ -1252,13 +1247,7 @@
def_bool ARCH_SPARSEMEM_ENABLE
config ARCH_SELECT_MEMORY_MODEL
- def_bool ARCH_DISCONTIGMEM_ENABLE && ARCH_SPARSEMEM_ENABLE
-
-config NODES_SHIFT
- int
- default "4" if ARCH_LH7A40X
- default "2"
- depends on NEED_MULTIPLE_NODES
+ def_bool ARCH_SPARSEMEM_ENABLE
config HIGHMEM
bool "High Memory Support (EXPERIMENTAL)"
diff --git a/arch/arm/include/asm/memory.h b/arch/arm/include/asm/memory.h
index 4312ee5..e263ec7 100644
--- a/arch/arm/include/asm/memory.h
+++ b/arch/arm/include/asm/memory.h
@@ -234,76 +234,11 @@
* virt_to_page(k) convert a _valid_ virtual address to struct page *
* virt_addr_valid(k) indicates whether a virtual address is valid
*/
-#ifndef CONFIG_DISCONTIGMEM
-
#define ARCH_PFN_OFFSET PHYS_PFN_OFFSET
#define virt_to_page(kaddr) pfn_to_page(__pa(kaddr) >> PAGE_SHIFT)
#define virt_addr_valid(kaddr) ((unsigned long)(kaddr) >= PAGE_OFFSET && (unsigned long)(kaddr) < (unsigned long)high_memory)
-#define PHYS_TO_NID(addr) (0)
-
-#else /* CONFIG_DISCONTIGMEM */
-
-/*
- * This is more complex. We have a set of mem_map arrays spread
- * around in memory.
- */
-#include <linux/numa.h>
-
-#define arch_pfn_to_nid(pfn) PFN_TO_NID(pfn)
-#define arch_local_page_offset(pfn, nid) LOCAL_MAP_NR((pfn) << PAGE_SHIFT)
-
-#define virt_to_page(kaddr) \
- (ADDR_TO_MAPBASE(kaddr) + LOCAL_MAP_NR(kaddr))
-
-#define virt_addr_valid(kaddr) (KVADDR_TO_NID(kaddr) < MAX_NUMNODES)
-
-/*
- * Common discontigmem stuff.
- * PHYS_TO_NID is used by the ARM kernel/setup.c
- */
-#define PHYS_TO_NID(addr) PFN_TO_NID((addr) >> PAGE_SHIFT)
-
-/*
- * Given a kaddr, ADDR_TO_MAPBASE finds the owning node of the memory
- * and returns the mem_map of that node.
- */
-#define ADDR_TO_MAPBASE(kaddr) NODE_MEM_MAP(KVADDR_TO_NID(kaddr))
-
-/*
- * Given a page frame number, find the owning node of the memory
- * and returns the mem_map of that node.
- */
-#define PFN_TO_MAPBASE(pfn) NODE_MEM_MAP(PFN_TO_NID(pfn))
-
-#ifdef NODE_MEM_SIZE_BITS
-#define NODE_MEM_SIZE_MASK ((1 << NODE_MEM_SIZE_BITS) - 1)
-
-/*
- * Given a kernel address, find the home node of the underlying memory.
- */
-#define KVADDR_TO_NID(addr) \
- (((unsigned long)(addr) - PAGE_OFFSET) >> NODE_MEM_SIZE_BITS)
-
-/*
- * Given a page frame number, convert it to a node id.
- */
-#define PFN_TO_NID(pfn) \
- (((pfn) - PHYS_PFN_OFFSET) >> (NODE_MEM_SIZE_BITS - PAGE_SHIFT))
-
-/*
- * Given a kaddr, LOCAL_MEM_MAP finds the owning node of the memory
- * and returns the index corresponding to the appropriate page in the
- * node's mem_map.
- */
-#define LOCAL_MAP_NR(addr) \
- (((unsigned long)(addr) & NODE_MEM_SIZE_MASK) >> PAGE_SHIFT)
-
-#endif /* NODE_MEM_SIZE_BITS */
-
-#endif /* !CONFIG_DISCONTIGMEM */
-
/*
* Optional coherency support. Currently used only by selected
* Intel XSC3-based systems.
diff --git a/arch/arm/include/asm/mmzone.h b/arch/arm/include/asm/mmzone.h
deleted file mode 100644
index ae63a4f..0000000
--- a/arch/arm/include/asm/mmzone.h
+++ /dev/null
@@ -1,30 +0,0 @@
-/*
- * arch/arm/include/asm/mmzone.h
- *
- * 1999-12-29 Nicolas Pitre Created
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-#ifndef __ASM_MMZONE_H
-#define __ASM_MMZONE_H
-
-/*
- * Currently defined in arch/arm/mm/discontig.c
- */
-extern pg_data_t discontig_node_data[];
-
-/*
- * Return a pointer to the node data for node n.
- */
-#define NODE_DATA(nid) (&discontig_node_data[nid])
-
-/*
- * NODE_MEM_MAP gives the kaddr for the mem_map of the node.
- */
-#define NODE_MEM_MAP(nid) (NODE_DATA(nid)->node_mem_map)
-
-#include <mach/memory.h>
-
-#endif
diff --git a/arch/arm/include/asm/setup.h b/arch/arm/include/asm/setup.h
index f392fb4..f1e5a9b 100644
--- a/arch/arm/include/asm/setup.h
+++ b/arch/arm/include/asm/setup.h
@@ -201,8 +201,7 @@
struct membank {
unsigned long start;
unsigned long size;
- unsigned short node;
- unsigned short highmem;
+ unsigned int highmem;
};
struct meminfo {
@@ -212,9 +211,8 @@
extern struct meminfo meminfo;
-#define for_each_nodebank(iter,mi,no) \
- for (iter = 0; iter < (mi)->nr_banks; iter++) \
- if ((mi)->bank[iter].node == no)
+#define for_each_bank(iter,mi) \
+ for (iter = 0; iter < (mi)->nr_banks; iter++)
#define bank_pfn_start(bank) __phys_to_pfn((bank)->start)
#define bank_pfn_end(bank) __phys_to_pfn((bank)->start + (bank)->size)
diff --git a/arch/arm/kernel/setup.c b/arch/arm/kernel/setup.c
index 122d999..387d2e9 100644
--- a/arch/arm/kernel/setup.c
+++ b/arch/arm/kernel/setup.c
@@ -402,13 +402,12 @@
size -= start & ~PAGE_MASK;
bank->start = PAGE_ALIGN(start);
bank->size = size & PAGE_MASK;
- bank->node = PHYS_TO_NID(start);
/*
* Check whether this memory region has non-zero size or
* invalid node number.
*/
- if (bank->size == 0 || bank->node >= MAX_NUMNODES)
+ if (bank->size == 0)
return -EINVAL;
meminfo.nr_banks++;
diff --git a/arch/arm/mach-aaec2000/include/mach/memory.h b/arch/arm/mach-aaec2000/include/mach/memory.h
index c008225..4f93c56 100644
--- a/arch/arm/mach-aaec2000/include/mach/memory.h
+++ b/arch/arm/mach-aaec2000/include/mach/memory.h
@@ -14,14 +14,4 @@
#define PHYS_OFFSET UL(0xf0000000)
-/*
- * The nodes are the followings:
- *
- * node 0: 0xf000.0000 - 0xf3ff.ffff
- * node 1: 0xf400.0000 - 0xf7ff.ffff
- * node 2: 0xf800.0000 - 0xfbff.ffff
- * node 3: 0xfc00.0000 - 0xffff.ffff
- */
-#define NODE_MEM_SIZE_BITS 26
-
#endif /* __ASM_ARCH_MEMORY_H */
diff --git a/arch/arm/mach-clps711x/Kconfig b/arch/arm/mach-clps711x/Kconfig
index dbaae5f..eb34bd1 100644
--- a/arch/arm/mach-clps711x/Kconfig
+++ b/arch/arm/mach-clps711x/Kconfig
@@ -30,7 +30,6 @@
config ARCH_EDB7211
bool "EDB7211"
select ISA
- select ARCH_DISCONTIGMEM_ENABLE
select ARCH_SPARSEMEM_ENABLE
select ARCH_SELECT_MEMORY_MODEL
help
diff --git a/arch/arm/mach-clps711x/clep7312.c b/arch/arm/mach-clps711x/clep7312.c
index 09fb57e..3c3bf45 100644
--- a/arch/arm/mach-clps711x/clep7312.c
+++ b/arch/arm/mach-clps711x/clep7312.c
@@ -32,7 +32,6 @@
mi->nr_banks=1;
mi->bank[0].start = 0xc0000000;
mi->bank[0].size = 0x01000000;
- mi->bank[0].node = 0;
}
diff --git a/arch/arm/mach-clps711x/edb7211-arch.c b/arch/arm/mach-clps711x/edb7211-arch.c
index dc81cc6..41a4425 100644
--- a/arch/arm/mach-clps711x/edb7211-arch.c
+++ b/arch/arm/mach-clps711x/edb7211-arch.c
@@ -43,10 +43,8 @@
*/
mi->bank[0].start = 0xc0000000;
mi->bank[0].size = 8*1024*1024;
- mi->bank[0].node = 0;
mi->bank[1].start = 0xc1000000;
mi->bank[1].size = 8*1024*1024;
- mi->bank[1].node = 1;
mi->nr_banks = 2;
}
diff --git a/arch/arm/mach-clps711x/fortunet.c b/arch/arm/mach-clps711x/fortunet.c
index 7430e40..a696099 100644
--- a/arch/arm/mach-clps711x/fortunet.c
+++ b/arch/arm/mach-clps711x/fortunet.c
@@ -39,7 +39,6 @@
{
.start = 0xC0000000,
.size = 0x01000000,
- .node = 0
},
},
};
diff --git a/arch/arm/mach-clps711x/include/mach/memory.h b/arch/arm/mach-clps711x/include/mach/memory.h
index f70d52b..f45c8e8 100644
--- a/arch/arm/mach-clps711x/include/mach/memory.h
+++ b/arch/arm/mach-clps711x/include/mach/memory.h
@@ -20,7 +20,6 @@
#ifndef __ASM_ARCH_MEMORY_H
#define __ASM_ARCH_MEMORY_H
-
/*
* Physical DRAM offset.
*/
@@ -72,7 +71,6 @@
* node 2: 0xd0000000 - 0xd7ffffff
* node 3: 0xd8000000 - 0xdfffffff
*/
-#define NODE_MEM_SIZE_BITS 24
#define SECTION_SIZE_BITS 24
#define MAX_PHYSMEM_BITS 32
diff --git a/arch/arm/mach-iop13xx/include/mach/memory.h b/arch/arm/mach-iop13xx/include/mach/memory.h
index 25b1da9..7415e43 100644
--- a/arch/arm/mach-iop13xx/include/mach/memory.h
+++ b/arch/arm/mach-iop13xx/include/mach/memory.h
@@ -69,6 +69,4 @@
#endif /* CONFIG_ARCH_IOP13XX */
#endif /* !ASSEMBLY */
-#define PFN_TO_NID(addr) (0)
-
#endif
diff --git a/arch/arm/mach-lh7a40x/include/mach/memory.h b/arch/arm/mach-lh7a40x/include/mach/memory.h
index 189d20e..edb8f5f 100644
--- a/arch/arm/mach-lh7a40x/include/mach/memory.h
+++ b/arch/arm/mach-lh7a40x/include/mach/memory.h
@@ -19,50 +19,6 @@
*/
#define PHYS_OFFSET UL(0xc0000000)
-#ifdef CONFIG_DISCONTIGMEM
-
-/*
- * Given a kernel address, find the home node of the underlying memory.
- */
-
-# ifdef CONFIG_LH7A40X_ONE_BANK_PER_NODE
-# define KVADDR_TO_NID(addr) \
- ( ((((unsigned long) (addr) - PAGE_OFFSET) >> 24) & 1)\
- | ((((unsigned long) (addr) - PAGE_OFFSET) >> 25) & ~1))
-# else /* 2 banks per node */
-# define KVADDR_TO_NID(addr) \
- (((unsigned long) (addr) - PAGE_OFFSET) >> 26)
-# endif
-
-/*
- * Given a page frame number, convert it to a node id.
- */
-
-# ifdef CONFIG_LH7A40X_ONE_BANK_PER_NODE
-# define PFN_TO_NID(pfn) \
- (((((pfn) - PHYS_PFN_OFFSET) >> (24 - PAGE_SHIFT)) & 1)\
- | ((((pfn) - PHYS_PFN_OFFSET) >> (25 - PAGE_SHIFT)) & ~1))
-# else /* 2 banks per node */
-# define PFN_TO_NID(pfn) \
- (((pfn) - PHYS_PFN_OFFSET) >> (26 - PAGE_SHIFT))
-#endif
-
-/*
- * Given a kaddr, LOCAL_MEM_MAP finds the owning node of the memory
- * and returns the index corresponding to the appropriate page in the
- * node's mem_map.
- */
-
-# ifdef CONFIG_LH7A40X_ONE_BANK_PER_NODE
-# define LOCAL_MAP_NR(addr) \
- (((unsigned long)(addr) & 0x003fffff) >> PAGE_SHIFT)
-# else /* 2 banks per node */
-# define LOCAL_MAP_NR(addr) \
- (((unsigned long)(addr) & 0x01ffffff) >> PAGE_SHIFT)
-# endif
-
-#endif
-
/*
* Sparsemem version of the above
*/
diff --git a/arch/arm/mach-msm/board-trout.c b/arch/arm/mach-msm/board-trout.c
index dca5a5f..e69a150 100644
--- a/arch/arm/mach-msm/board-trout.c
+++ b/arch/arm/mach-msm/board-trout.c
@@ -50,7 +50,6 @@
{
mi->nr_banks = 1;
mi->bank[0].start = PHYS_OFFSET;
- mi->bank[0].node = PHYS_TO_NID(PHYS_OFFSET);
mi->bank[0].size = (101*1024*1024);
}
diff --git a/arch/arm/mach-pxa/corgi.c b/arch/arm/mach-pxa/corgi.c
index 3d1dcb9..95234fb 100644
--- a/arch/arm/mach-pxa/corgi.c
+++ b/arch/arm/mach-pxa/corgi.c
@@ -715,7 +715,6 @@
sharpsl_save_param();
mi->nr_banks=1;
mi->bank[0].start = 0xa0000000;
- mi->bank[0].node = 0;
if (machine_is_corgi())
mi->bank[0].size = (32*1024*1024);
else
diff --git a/arch/arm/mach-pxa/eseries.c b/arch/arm/mach-pxa/eseries.c
index 96ed130..a0ab308 100644
--- a/arch/arm/mach-pxa/eseries.c
+++ b/arch/arm/mach-pxa/eseries.c
@@ -34,7 +34,6 @@
{
mi->nr_banks=1;
mi->bank[0].start = 0xa0000000;
- mi->bank[0].node = 0;
if (machine_is_e800())
mi->bank[0].size = (128*1024*1024);
else
diff --git a/arch/arm/mach-pxa/generic.h b/arch/arm/mach-pxa/generic.h
index 890fb90..c6305c5 100644
--- a/arch/arm/mach-pxa/generic.h
+++ b/arch/arm/mach-pxa/generic.h
@@ -26,8 +26,7 @@
#define SET_BANK(__nr,__start,__size) \
mi->bank[__nr].start = (__start), \
- mi->bank[__nr].size = (__size), \
- mi->bank[__nr].node = (((unsigned)(__start) - PHYS_OFFSET) >> 27)
+ mi->bank[__nr].size = (__size)
#define ARRAY_AND_SIZE(x) (x), ARRAY_SIZE(x)
diff --git a/arch/arm/mach-pxa/include/mach/memory.h b/arch/arm/mach-pxa/include/mach/memory.h
index f626730..81fd4a0 100644
--- a/arch/arm/mach-pxa/include/mach/memory.h
+++ b/arch/arm/mach-pxa/include/mach/memory.h
@@ -17,18 +17,6 @@
*/
#define PHYS_OFFSET UL(0xa0000000)
-/*
- * The nodes are matched with the physical SDRAM banks as follows:
- *
- * node 0: 0xa0000000-0xa3ffffff --> 0xc0000000-0xc3ffffff
- * node 1: 0xa4000000-0xa7ffffff --> 0xc4000000-0xc7ffffff
- * node 2: 0xa8000000-0xabffffff --> 0xc8000000-0xcbffffff
- * node 3: 0xac000000-0xafffffff --> 0xcc000000-0xcfffffff
- *
- * This needs a node mem size of 26 bits.
- */
-#define NODE_MEM_SIZE_BITS 26
-
#if !defined(__ASSEMBLY__) && defined(CONFIG_MACH_ARMCORE) && defined(CONFIG_PCI)
void cmx2xx_pci_adjust_zones(int node, unsigned long *size,
unsigned long *holes);
diff --git a/arch/arm/mach-pxa/poodle.c b/arch/arm/mach-pxa/poodle.c
index f4abdaa..bc2758b 100644
--- a/arch/arm/mach-pxa/poodle.c
+++ b/arch/arm/mach-pxa/poodle.c
@@ -463,7 +463,6 @@
sharpsl_save_param();
mi->nr_banks=1;
mi->bank[0].start = 0xa0000000;
- mi->bank[0].node = 0;
mi->bank[0].size = (32*1024*1024);
}
diff --git a/arch/arm/mach-pxa/spitz.c b/arch/arm/mach-pxa/spitz.c
index c1048a3..51756c7 100644
--- a/arch/arm/mach-pxa/spitz.c
+++ b/arch/arm/mach-pxa/spitz.c
@@ -847,7 +847,6 @@
sharpsl_save_param();
mi->nr_banks = 1;
mi->bank[0].start = 0xa0000000;
- mi->bank[0].node = 0;
mi->bank[0].size = (64*1024*1024);
}
diff --git a/arch/arm/mach-pxa/tosa.c b/arch/arm/mach-pxa/tosa.c
index 7512b82..83cc3a1 100644
--- a/arch/arm/mach-pxa/tosa.c
+++ b/arch/arm/mach-pxa/tosa.c
@@ -948,7 +948,6 @@
sharpsl_save_param();
mi->nr_banks=1;
mi->bank[0].start = 0xa0000000;
- mi->bank[0].node = 0;
mi->bank[0].size = (64*1024*1024);
}
diff --git a/arch/arm/mach-s3c2412/mach-smdk2413.c b/arch/arm/mach-s3c2412/mach-smdk2413.c
index ba93a35..054c9f9 100644
--- a/arch/arm/mach-s3c2412/mach-smdk2413.c
+++ b/arch/arm/mach-s3c2412/mach-smdk2413.c
@@ -119,7 +119,6 @@
mi->nr_banks=1;
mi->bank[0].start = 0x30000000;
mi->bank[0].size = SZ_64M;
- mi->bank[0].node = 0;
}
}
diff --git a/arch/arm/mach-s3c2412/mach-vstms.c b/arch/arm/mach-s3c2412/mach-vstms.c
index 3ca9265..f291ac2 100644
--- a/arch/arm/mach-s3c2412/mach-vstms.c
+++ b/arch/arm/mach-s3c2412/mach-vstms.c
@@ -137,7 +137,6 @@
mi->nr_banks=1;
mi->bank[0].start = 0x30000000;
mi->bank[0].size = SZ_64M;
- mi->bank[0].node = 0;
}
}
diff --git a/arch/arm/mach-sa1100/generic.h b/arch/arm/mach-sa1100/generic.h
index ec03f18..b7a9a60 100644
--- a/arch/arm/mach-sa1100/generic.h
+++ b/arch/arm/mach-sa1100/generic.h
@@ -13,8 +13,7 @@
#define SET_BANK(__nr,__start,__size) \
mi->bank[__nr].start = (__start), \
- mi->bank[__nr].size = (__size), \
- mi->bank[__nr].node = (((unsigned)(__start) - PHYS_OFFSET) >> 27)
+ mi->bank[__nr].size = (__size)
extern void (*sa1100fb_backlight_power)(int on);
extern void (*sa1100fb_lcd_power)(int on);
diff --git a/arch/arm/mm/Makefile b/arch/arm/mm/Makefile
index e8d34a80..d63b6c4 100644
--- a/arch/arm/mm/Makefile
+++ b/arch/arm/mm/Makefile
@@ -15,7 +15,6 @@
obj-$(CONFIG_MODULES) += proc-syms.o
obj-$(CONFIG_ALIGNMENT_TRAP) += alignment.o
-obj-$(CONFIG_DISCONTIGMEM) += discontig.o
obj-$(CONFIG_HIGHMEM) += highmem.o
obj-$(CONFIG_CPU_ABRT_NOMMU) += abort-nommu.o
diff --git a/arch/arm/mm/discontig.c b/arch/arm/mm/discontig.c
deleted file mode 100644
index c8c0c4b..0000000
--- a/arch/arm/mm/discontig.c
+++ /dev/null
@@ -1,45 +0,0 @@
-/*
- * linux/arch/arm/mm/discontig.c
- *
- * Discontiguous memory support.
- *
- * Initial code: Copyright (C) 1999-2000 Nicolas Pitre
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-#include <linux/module.h>
-#include <linux/mmzone.h>
-#include <linux/bootmem.h>
-
-#if MAX_NUMNODES != 4 && MAX_NUMNODES != 16
-# error Fix Me Please
-#endif
-
-/*
- * Our node_data structure for discontiguous memory.
- */
-
-pg_data_t discontig_node_data[MAX_NUMNODES] = {
- { .bdata = &bootmem_node_data[0] },
- { .bdata = &bootmem_node_data[1] },
- { .bdata = &bootmem_node_data[2] },
- { .bdata = &bootmem_node_data[3] },
-#if MAX_NUMNODES == 16
- { .bdata = &bootmem_node_data[4] },
- { .bdata = &bootmem_node_data[5] },
- { .bdata = &bootmem_node_data[6] },
- { .bdata = &bootmem_node_data[7] },
- { .bdata = &bootmem_node_data[8] },
- { .bdata = &bootmem_node_data[9] },
- { .bdata = &bootmem_node_data[10] },
- { .bdata = &bootmem_node_data[11] },
- { .bdata = &bootmem_node_data[12] },
- { .bdata = &bootmem_node_data[13] },
- { .bdata = &bootmem_node_data[14] },
- { .bdata = &bootmem_node_data[15] },
-#endif
-};
-
-EXPORT_SYMBOL(discontig_node_data);
diff --git a/arch/arm/mm/init.c b/arch/arm/mm/init.c
index f6a9994..4011e52 100644
--- a/arch/arm/mm/init.c
+++ b/arch/arm/mm/init.c
@@ -79,38 +79,37 @@
void show_mem(void)
{
int free = 0, total = 0, reserved = 0;
- int shared = 0, cached = 0, slab = 0, node, i;
+ int shared = 0, cached = 0, slab = 0, i;
struct meminfo * mi = &meminfo;
printk("Mem-info:\n");
show_free_areas();
- for_each_online_node(node) {
- for_each_nodebank (i,mi,node) {
- struct membank *bank = &mi->bank[i];
- unsigned int pfn1, pfn2;
- struct page *page, *end;
- pfn1 = bank_pfn_start(bank);
- pfn2 = bank_pfn_end(bank);
+ for_each_bank (i, mi) {
+ struct membank *bank = &mi->bank[i];
+ unsigned int pfn1, pfn2;
+ struct page *page, *end;
- page = pfn_to_page(pfn1);
- end = pfn_to_page(pfn2 - 1) + 1;
+ pfn1 = bank_pfn_start(bank);
+ pfn2 = bank_pfn_end(bank);
- do {
- total++;
- if (PageReserved(page))
- reserved++;
- else if (PageSwapCache(page))
- cached++;
- else if (PageSlab(page))
- slab++;
- else if (!page_count(page))
- free++;
- else
- shared += page_count(page) - 1;
- page++;
- } while (page < end);
- }
+ page = pfn_to_page(pfn1);
+ end = pfn_to_page(pfn2 - 1) + 1;
+
+ do {
+ total++;
+ if (PageReserved(page))
+ reserved++;
+ else if (PageSwapCache(page))
+ cached++;
+ else if (PageSlab(page))
+ slab++;
+ else if (!page_count(page))
+ free++;
+ else
+ shared += page_count(page) - 1;
+ page++;
+ } while (page < end);
}
printk("%d pages of RAM\n", total);
@@ -121,7 +120,7 @@
printk("%d pages swap cached\n", cached);
}
-static void __init find_node_limits(int node, struct meminfo *mi,
+static void __init find_limits(struct meminfo *mi,
unsigned long *min, unsigned long *max_low, unsigned long *max_high)
{
int i;
@@ -129,7 +128,7 @@
*min = -1UL;
*max_low = *max_high = 0;
- for_each_nodebank(i, mi, node) {
+ for_each_bank (i, mi) {
struct membank *bank = &mi->bank[i];
unsigned long start, end;
@@ -154,14 +153,14 @@
* the end, we won't clash.
*/
static unsigned int __init
-find_bootmap_pfn(int node, struct meminfo *mi, unsigned int bootmap_pages)
+find_bootmap_pfn(struct meminfo *mi, unsigned int bootmap_pages)
{
unsigned int start_pfn, i, bootmap_pfn;
start_pfn = PAGE_ALIGN(__pa(_end)) >> PAGE_SHIFT;
bootmap_pfn = 0;
- for_each_nodebank(i, mi, node) {
+ for_each_bank(i, mi) {
struct membank *bank = &mi->bank[i];
unsigned int start, end;
@@ -191,7 +190,7 @@
static int __init check_initrd(struct meminfo *mi)
{
- int initrd_node = -2;
+ int initrd = -2;
#ifdef CONFIG_BLK_DEV_INITRD
unsigned long end = phys_initrd_start + phys_initrd_size;
@@ -202,17 +201,17 @@
if (phys_initrd_size) {
unsigned int i;
- initrd_node = -1;
+ initrd = -1;
for (i = 0; i < mi->nr_banks; i++) {
struct membank *bank = &mi->bank[i];
if (bank_phys_start(bank) <= phys_initrd_start &&
end <= bank_phys_end(bank))
- initrd_node = bank->node;
+ initrd = 0;
}
}
- if (initrd_node == -1) {
+ if (initrd == -1) {
printk(KERN_ERR "INITRD: 0x%08lx+0x%08lx extends beyond "
"physical memory - disabling initrd\n",
phys_initrd_start, phys_initrd_size);
@@ -220,10 +219,10 @@
}
#endif
- return initrd_node;
+ return initrd;
}
-static void __init bootmem_init_node(int node, struct meminfo *mi,
+static void __init arm_bootmem_init(struct meminfo *mi,
unsigned long start_pfn, unsigned long end_pfn)
{
unsigned long boot_pfn;
@@ -235,37 +234,36 @@
* Allocate the bootmem bitmap page.
*/
boot_pages = bootmem_bootmap_pages(end_pfn - start_pfn);
- boot_pfn = find_bootmap_pfn(node, mi, boot_pages);
+ boot_pfn = find_bootmap_pfn(mi, boot_pages);
/*
- * Initialise the bootmem allocator for this node, handing the
+ * Initialise the bootmem allocator, handing the
* memory banks over to bootmem.
*/
- node_set_online(node);
- pgdat = NODE_DATA(node);
+ node_set_online(0);
+ pgdat = NODE_DATA(0);
init_bootmem_node(pgdat, boot_pfn, start_pfn, end_pfn);
- for_each_nodebank(i, mi, node) {
+ for_each_bank(i, mi) {
struct membank *bank = &mi->bank[i];
if (!bank->highmem)
- free_bootmem_node(pgdat, bank_phys_start(bank), bank_phys_size(bank));
+ free_bootmem(bank_phys_start(bank), bank_phys_size(bank));
}
/*
- * Reserve the bootmem bitmap for this node.
+ * Reserve the bootmem bitmap.
*/
- reserve_bootmem_node(pgdat, boot_pfn << PAGE_SHIFT,
- boot_pages << PAGE_SHIFT, BOOTMEM_DEFAULT);
+ reserve_bootmem(boot_pfn << PAGE_SHIFT,
+ boot_pages << PAGE_SHIFT, BOOTMEM_DEFAULT);
}
-static void __init bootmem_reserve_initrd(int node)
+static void __init bootmem_reserve_initrd(void)
{
#ifdef CONFIG_BLK_DEV_INITRD
- pg_data_t *pgdat = NODE_DATA(node);
int res;
- res = reserve_bootmem_node(pgdat, phys_initrd_start,
- phys_initrd_size, BOOTMEM_EXCLUSIVE);
+ res = reserve_bootmem(phys_initrd_start,
+ phys_initrd_size, BOOTMEM_EXCLUSIVE);
if (res == 0) {
initrd_start = __phys_to_virt(phys_initrd_start);
@@ -279,23 +277,23 @@
#endif
}
-static void __init bootmem_free_node(int node, struct meminfo *mi)
+static void __init arm_bootmem_free(struct meminfo *mi)
{
unsigned long zone_size[MAX_NR_ZONES], zhole_size[MAX_NR_ZONES];
unsigned long min, max_low, max_high;
int i;
- find_node_limits(node, mi, &min, &max_low, &max_high);
+ find_limits(mi, &min, &max_low, &max_high);
/*
- * initialise the zones within this node.
+ * initialise the zones.
*/
memset(zone_size, 0, sizeof(zone_size));
/*
- * The size of this node has already been determined. If we need
- * to do anything fancy with the allocation of this memory to the
- * zones, now is the time to do it.
+ * The memory size has already been determined. If we need
+ * to do anything fancy with the allocation of this memory
+ * to the zones, now is the time to do it.
*/
zone_size[0] = max_low - min;
#ifdef CONFIG_HIGHMEM
@@ -303,11 +301,11 @@
#endif
/*
- * For each bank in this node, calculate the size of the holes.
- * holes = node_size - sum(bank_sizes_in_node)
+ * Calculate the size of the holes.
+ * holes = node_size - sum(bank_sizes)
*/
memcpy(zhole_size, zone_size, sizeof(zhole_size));
- for_each_nodebank(i, mi, node) {
+ for_each_bank(i, mi) {
int idx = 0;
#ifdef CONFIG_HIGHMEM
if (mi->bank[i].highmem)
@@ -320,9 +318,9 @@
* Adjust the sizes according to any special requirements for
* this machine type.
*/
- arch_adjust_zones(node, zone_size, zhole_size);
+ arch_adjust_zones(0, zone_size, zhole_size);
- free_area_init_node(node, zone_size, min, zhole_size);
+ free_area_init_node(0, zone_size, min, zhole_size);
}
#ifndef CONFIG_SPARSEMEM
@@ -346,16 +344,16 @@
}
EXPORT_SYMBOL(pfn_valid);
-static void arm_memory_present(struct meminfo *mi, int node)
+static void arm_memory_present(struct meminfo *mi)
{
}
#else
-static void arm_memory_present(struct meminfo *mi, int node)
+static void arm_memory_present(struct meminfo *mi)
{
int i;
- for_each_nodebank(i, mi, node) {
+ for_each_bank(i, mi) {
struct membank *bank = &mi->bank[i];
- memory_present(node, bank_pfn_start(bank), bank_pfn_end(bank));
+ memory_present(0, bank_pfn_start(bank), bank_pfn_end(bank));
}
}
#endif
@@ -364,55 +362,35 @@
{
struct meminfo *mi = &meminfo;
unsigned long min, max_low, max_high;
- int node, initrd_node;
+ int initrd;
/*
- * Locate which node contains the ramdisk image, if any.
+ * Locate the ramdisk image, if any.
*/
- initrd_node = check_initrd(mi);
+ initrd = check_initrd(mi);
max_low = max_high = 0;
+ find_limits(mi, &min, &max_low, &max_high);
+
+ arm_bootmem_init(mi, min, max_low);
+
/*
- * Run through each node initialising the bootmem allocator.
+ * Reserve any special regions.
*/
- for_each_node(node) {
- unsigned long node_low, node_high;
+ reserve_special_regions();
- find_node_limits(node, mi, &min, &node_low, &node_high);
+ /*
+ * If the initrd is present, reserve its memory.
+ */
+ if (initrd == 0)
+ bootmem_reserve_initrd();
- if (node_low > max_low)
- max_low = node_low;
- if (node_high > max_high)
- max_high = node_high;
-
- /*
- * If there is no memory in this node, ignore it.
- * (We can't have nodes which have no lowmem)
- */
- if (node_low == 0)
- continue;
-
- bootmem_init_node(node, mi, min, node_low);
-
- /*
- * Reserve any special node zero regions.
- */
- if (node == 0)
- reserve_node_zero(NODE_DATA(node));
-
- /*
- * If the initrd is in this node, reserve its memory.
- */
- if (node == initrd_node)
- bootmem_reserve_initrd(node);
-
- /*
- * Sparsemem tries to allocate bootmem in memory_present(),
- * so must be done after the fixed reservations
- */
- arm_memory_present(mi, node);
- }
+ /*
+ * Sparsemem tries to allocate bootmem in memory_present(),
+ * so must be done after the fixed reservations
+ */
+ arm_memory_present(mi);
/*
* sparse_init() needs the bootmem allocator up and running.
@@ -420,12 +398,11 @@
sparse_init();
/*
- * Now free memory in each node - free_area_init_node needs
+ * Now free the memory - free_area_init_node needs
* the sparse mem_map arrays initialized by sparse_init()
* for memmap_init_zone(), otherwise all PFNs are invalid.
*/
- for_each_node(node)
- bootmem_free_node(node, mi);
+ arm_bootmem_free(mi);
high_memory = __va((max_low << PAGE_SHIFT) - 1) + 1;
@@ -460,7 +437,7 @@
}
static inline void
-free_memmap(int node, unsigned long start_pfn, unsigned long end_pfn)
+free_memmap(unsigned long start_pfn, unsigned long end_pfn)
{
struct page *start_pg, *end_pg;
unsigned long pg, pgend;
@@ -483,13 +460,13 @@
* free the section of the memmap array.
*/
if (pg < pgend)
- free_bootmem_node(NODE_DATA(node), pg, pgend - pg);
+ free_bootmem(pg, pgend - pg);
}
/*
* The mem_map array can get very big. Free the unused area of the memory map.
*/
-static void __init free_unused_memmap_node(int node, struct meminfo *mi)
+static void __init free_unused_memmap(struct meminfo *mi)
{
unsigned long bank_start, prev_bank_end = 0;
unsigned int i;
@@ -499,7 +476,7 @@
* may not be the case, especially if the user has provided the
* information on the command line.
*/
- for_each_nodebank(i, mi, node) {
+ for_each_bank(i, mi) {
struct membank *bank = &mi->bank[i];
bank_start = bank_pfn_start(bank);
@@ -514,7 +491,7 @@
* between the current bank and the previous, free it.
*/
if (prev_bank_end && prev_bank_end != bank_start)
- free_memmap(node, prev_bank_end, bank_start);
+ free_memmap(prev_bank_end, bank_start);
prev_bank_end = bank_pfn_end(bank);
}
@@ -528,21 +505,14 @@
void __init mem_init(void)
{
unsigned long reserved_pages, free_pages;
- int i, node;
+ int i;
-#ifndef CONFIG_DISCONTIGMEM
max_mapnr = pfn_to_page(max_pfn + PHYS_PFN_OFFSET) - mem_map;
-#endif
/* this will put all unused low memory onto the freelists */
- for_each_online_node(node) {
- pg_data_t *pgdat = NODE_DATA(node);
+ free_unused_memmap(&meminfo);
- free_unused_memmap_node(node, &meminfo);
-
- if (pgdat->node_spanned_pages != 0)
- totalram_pages += free_all_bootmem_node(pgdat);
- }
+ totalram_pages += free_all_bootmem();
#ifdef CONFIG_SA1111
/* now that our DMA memory is actually so designated, we can free it */
@@ -552,39 +522,35 @@
#ifdef CONFIG_HIGHMEM
/* set highmem page free */
- for_each_online_node(node) {
- for_each_nodebank (i, &meminfo, node) {
- unsigned long start = bank_pfn_start(&meminfo.bank[i]);
- unsigned long end = bank_pfn_end(&meminfo.bank[i]);
- if (start >= max_low_pfn + PHYS_PFN_OFFSET)
- totalhigh_pages += free_area(start, end, NULL);
- }
+ for_each_bank (i, &meminfo) {
+ unsigned long start = bank_pfn_start(&meminfo.bank[i]);
+ unsigned long end = bank_pfn_end(&meminfo.bank[i]);
+ if (start >= max_low_pfn + PHYS_PFN_OFFSET)
+ totalhigh_pages += free_area(start, end, NULL);
}
totalram_pages += totalhigh_pages;
#endif
reserved_pages = free_pages = 0;
- for_each_online_node(node) {
- for_each_nodebank(i, &meminfo, node) {
- struct membank *bank = &meminfo.bank[i];
- unsigned int pfn1, pfn2;
- struct page *page, *end;
+ for_each_bank(i, &meminfo) {
+ struct membank *bank = &meminfo.bank[i];
+ unsigned int pfn1, pfn2;
+ struct page *page, *end;
- pfn1 = bank_pfn_start(bank);
- pfn2 = bank_pfn_end(bank);
+ pfn1 = bank_pfn_start(bank);
+ pfn2 = bank_pfn_end(bank);
- page = pfn_to_page(pfn1);
- end = pfn_to_page(pfn2 - 1) + 1;
+ page = pfn_to_page(pfn1);
+ end = pfn_to_page(pfn2 - 1) + 1;
- do {
- if (PageReserved(page))
- reserved_pages++;
- else if (!page_count(page))
- free_pages++;
- page++;
- } while (page < end);
- }
+ do {
+ if (PageReserved(page))
+ reserved_pages++;
+ else if (!page_count(page))
+ free_pages++;
+ page++;
+ } while (page < end);
}
/*
diff --git a/arch/arm/mm/mm.h b/arch/arm/mm/mm.h
index 815d08e..7b19c90 100644
--- a/arch/arm/mm/mm.h
+++ b/arch/arm/mm/mm.h
@@ -28,7 +28,5 @@
#endif
-struct pglist_data;
-
void __init bootmem_init(void);
-void reserve_node_zero(struct pglist_data *pgdat);
+void reserve_special_regions(void);
diff --git a/arch/arm/mm/mmu.c b/arch/arm/mm/mmu.c
index 6a08087..ddb1bee 100644
--- a/arch/arm/mm/mmu.c
+++ b/arch/arm/mm/mmu.c
@@ -827,9 +827,9 @@
}
/*
- * Reserve the various regions of node 0
+ * Reserve the various regions
*/
-void __init reserve_node_zero(pg_data_t *pgdat)
+void __init reserve_special_regions(void)
{
unsigned long res_size = 0;
@@ -838,19 +838,17 @@
* Note that this can only be in node 0.
*/
#ifdef CONFIG_XIP_KERNEL
- reserve_bootmem_node(pgdat, __pa(_data), _end - _data,
- BOOTMEM_DEFAULT);
+ reserve_bootmem(__pa(_data), _end - _data, BOOTMEM_DEFAULT);
#else
- reserve_bootmem_node(pgdat, __pa(_stext), _end - _stext,
- BOOTMEM_DEFAULT);
+ reserve_bootmem(__pa(_stext), _end - _stext, BOOTMEM_DEFAULT);
#endif
/*
* Reserve the page tables. These are already in use,
* and can only be in node 0.
*/
- reserve_bootmem_node(pgdat, __pa(swapper_pg_dir),
- PTRS_PER_PGD * sizeof(pgd_t), BOOTMEM_DEFAULT);
+ reserve_bootmem(__pa(swapper_pg_dir),
+ PTRS_PER_PGD * sizeof(pgd_t), BOOTMEM_DEFAULT);
/*
* Hmm... This should go elsewhere, but we really really need to
@@ -874,29 +872,22 @@
if (machine_is_h1940() || machine_is_rx3715()
|| machine_is_rx1950()) {
- reserve_bootmem_node(pgdat, 0x30003000, 0x1000,
- BOOTMEM_DEFAULT);
- reserve_bootmem_node(pgdat, 0x30081000, 0x1000,
- BOOTMEM_DEFAULT);
+ reserve_bootmem(0x30003000, 0x1000, BOOTMEM_DEFAULT);
+ reserve_bootmem(0x30081000, 0x1000, BOOTMEM_DEFAULT);
}
if (machine_is_palmld() || machine_is_palmtx()) {
- reserve_bootmem_node(pgdat, 0xa0000000, 0x1000,
- BOOTMEM_EXCLUSIVE);
- reserve_bootmem_node(pgdat, 0xa0200000, 0x1000,
- BOOTMEM_EXCLUSIVE);
+ reserve_bootmem(0xa0000000, 0x1000, BOOTMEM_EXCLUSIVE);
+ reserve_bootmem(0xa0200000, 0x1000, BOOTMEM_EXCLUSIVE);
}
if (machine_is_treo680() || machine_is_centro()) {
- reserve_bootmem_node(pgdat, 0xa0000000, 0x1000,
- BOOTMEM_EXCLUSIVE);
- reserve_bootmem_node(pgdat, 0xa2000000, 0x1000,
- BOOTMEM_EXCLUSIVE);
+ reserve_bootmem(0xa0000000, 0x1000, BOOTMEM_EXCLUSIVE);
+ reserve_bootmem(0xa2000000, 0x1000, BOOTMEM_EXCLUSIVE);
}
if (machine_is_palmt5())
- reserve_bootmem_node(pgdat, 0xa0200000, 0x1000,
- BOOTMEM_EXCLUSIVE);
+ reserve_bootmem(0xa0200000, 0x1000, BOOTMEM_EXCLUSIVE);
/*
* U300 - This platform family can share physical memory
@@ -920,8 +911,7 @@
res_size = __pa(swapper_pg_dir) - PHYS_OFFSET;
#endif
if (res_size)
- reserve_bootmem_node(pgdat, PHYS_OFFSET, res_size,
- BOOTMEM_DEFAULT);
+ reserve_bootmem(PHYS_OFFSET, res_size, BOOTMEM_DEFAULT);
}
/*
diff --git a/arch/arm/mm/nommu.c b/arch/arm/mm/nommu.c
index 33b3273..25376d4 100644
--- a/arch/arm/mm/nommu.c
+++ b/arch/arm/mm/nommu.c
@@ -18,20 +18,18 @@
#include "mm.h"
/*
- * Reserve the various regions of node 0
+ * Reserve the various regions
*/
-void __init reserve_node_zero(pg_data_t *pgdat)
+void __init reserve_special_regions(void)
{
/*
* Register the kernel text and data with bootmem.
* Note that this can only be in node 0.
*/
#ifdef CONFIG_XIP_KERNEL
- reserve_bootmem_node(pgdat, __pa(_data), _end - _data,
- BOOTMEM_DEFAULT);
+ reserve_bootmem(__pa(_data), _end - _data, BOOTMEM_DEFAULT);
#else
- reserve_bootmem_node(pgdat, __pa(_stext), _end - _stext,
- BOOTMEM_DEFAULT);
+ reserve_bootmem(__pa(_stext), _end - _stext, BOOTMEM_DEFAULT);
#endif
/*
@@ -39,8 +37,7 @@
* some architectures which the DRAM is the exception vector to trap,
* alloc_page breaks with error, although it is not NULL, but "0."
*/
- reserve_bootmem_node(pgdat, CONFIG_VECTORS_BASE, PAGE_SIZE,
- BOOTMEM_DEFAULT);
+ reserve_bootmem(CONFIG_VECTORS_BASE, PAGE_SIZE, BOOTMEM_DEFAULT);
}
/*