Commit 1c2f87c2 authored by Laura Abbott's avatar Laura Abbott Committed by Russell King

ARM: 8025/1: Get rid of meminfo

memblock is now fully integrated into the kernel and is the prefered
method for tracking memory. Rather than reinvent the wheel with
meminfo, migrate to using memblock directly instead of meminfo as
an intermediate.
Acked-by: default avatarJason Cooper <jason@lakedaemon.net>
Acked-by: default avatarCatalin Marinas <catalin.marinas@arm.com>
Acked-by: default avatarSantosh Shilimkar <santosh.shilimkar@ti.com>
Acked-by: default avatarKukjin Kim <kgene.kim@samsung.com>
Tested-by: default avatarMarek Szyprowski <m.szyprowski@samsung.com>
Tested-by: default avatarLeif Lindholm <leif.lindholm@linaro.org>
Signed-off-by: default avatarLaura Abbott <lauraa@codeaurora.org>
Signed-off-by: default avatarRussell King <rmk+kernel@arm.linux.org.uk>
parent 1c8c3cf0
...@@ -1101,11 +1101,6 @@ source "arch/arm/firmware/Kconfig" ...@@ -1101,11 +1101,6 @@ source "arch/arm/firmware/Kconfig"
source arch/arm/mm/Kconfig source arch/arm/mm/Kconfig
config ARM_NR_BANKS
int
default 16 if ARCH_EP93XX
default 8
config IWMMXT config IWMMXT
bool "Enable iWMMXt support" if !CPU_PJ4 bool "Enable iWMMXt support" if !CPU_PJ4
depends on CPU_XSCALE || CPU_XSC3 || CPU_MOHAWK || CPU_PJ4 depends on CPU_XSCALE || CPU_XSC3 || CPU_MOHAWK || CPU_PJ4
......
...@@ -7,6 +7,8 @@ ...@@ -7,6 +7,8 @@
#define do_extend_cmdline 0 #define do_extend_cmdline 0
#endif #endif
#define NR_BANKS 16
static int node_offset(void *fdt, const char *node_path) static int node_offset(void *fdt, const char *node_path)
{ {
int offset = fdt_path_offset(fdt, node_path); int offset = fdt_path_offset(fdt, node_path);
......
...@@ -14,7 +14,6 @@ ...@@ -14,7 +14,6 @@
#include <linux/reboot.h> #include <linux/reboot.h>
struct tag; struct tag;
struct meminfo;
struct pt_regs; struct pt_regs;
struct smp_operations; struct smp_operations;
#ifdef CONFIG_SMP #ifdef CONFIG_SMP
...@@ -47,8 +46,7 @@ struct machine_desc { ...@@ -47,8 +46,7 @@ struct machine_desc {
enum reboot_mode reboot_mode; /* default restart mode */ enum reboot_mode reboot_mode; /* default restart mode */
struct smp_operations *smp; /* SMP operations */ struct smp_operations *smp; /* SMP operations */
bool (*smp_init)(void); bool (*smp_init)(void);
void (*fixup)(struct tag *, char **, void (*fixup)(struct tag *, char **);
struct meminfo *);
void (*init_meminfo)(void); void (*init_meminfo)(void);
void (*reserve)(void);/* reserve mem blocks */ void (*reserve)(void);/* reserve mem blocks */
void (*map_io)(void);/* IO mapping function */ void (*map_io)(void);/* IO mapping function */
......
#ifndef _ASM_ARM_MEMBLOCK_H #ifndef _ASM_ARM_MEMBLOCK_H
#define _ASM_ARM_MEMBLOCK_H #define _ASM_ARM_MEMBLOCK_H
struct meminfo;
struct machine_desc; struct machine_desc;
void arm_memblock_init(struct meminfo *, const struct machine_desc *); void arm_memblock_init(const struct machine_desc *);
phys_addr_t arm_memblock_steal(phys_addr_t size, phys_addr_t align); phys_addr_t arm_memblock_steal(phys_addr_t size, phys_addr_t align);
#endif #endif
...@@ -21,34 +21,6 @@ ...@@ -21,34 +21,6 @@
#define __tagtable(tag, fn) \ #define __tagtable(tag, fn) \
static const struct tagtable __tagtable_##fn __tag = { tag, fn } static const struct tagtable __tagtable_##fn __tag = { tag, fn }
/*
* Memory map description
*/
#define NR_BANKS CONFIG_ARM_NR_BANKS
struct membank {
phys_addr_t start;
phys_addr_t size;
unsigned int highmem;
};
struct meminfo {
int nr_banks;
struct membank bank[NR_BANKS];
};
extern struct meminfo meminfo;
#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)
#define bank_pfn_size(bank) ((bank)->size >> PAGE_SHIFT)
#define bank_phys_start(bank) (bank)->start
#define bank_phys_end(bank) ((bank)->start + (bank)->size)
#define bank_phys_size(bank) (bank)->size
extern int arm_add_memory(u64 start, u64 size); extern int arm_add_memory(u64 start, u64 size);
extern void early_print(const char *str, ...); extern void early_print(const char *str, ...);
extern void dump_machine_table(void); extern void dump_machine_table(void);
......
...@@ -22,6 +22,7 @@ ...@@ -22,6 +22,7 @@
#include <linux/fs.h> #include <linux/fs.h>
#include <linux/root_dev.h> #include <linux/root_dev.h>
#include <linux/screen_info.h> #include <linux/screen_info.h>
#include <linux/memblock.h>
#include <asm/setup.h> #include <asm/setup.h>
#include <asm/system_info.h> #include <asm/system_info.h>
...@@ -222,10 +223,10 @@ setup_machine_tags(phys_addr_t __atags_pointer, unsigned int machine_nr) ...@@ -222,10 +223,10 @@ setup_machine_tags(phys_addr_t __atags_pointer, unsigned int machine_nr)
} }
if (mdesc->fixup) if (mdesc->fixup)
mdesc->fixup(tags, &from, &meminfo); mdesc->fixup(tags, &from);
if (tags->hdr.tag == ATAG_CORE) { if (tags->hdr.tag == ATAG_CORE) {
if (meminfo.nr_banks != 0) if (memblock_phys_mem_size())
squash_mem_tags(tags); squash_mem_tags(tags);
save_atags(tags); save_atags(tags);
parse_tags(tags); parse_tags(tags);
......
...@@ -27,11 +27,6 @@ ...@@ -27,11 +27,6 @@
#include <asm/mach/arch.h> #include <asm/mach/arch.h>
#include <asm/mach-types.h> #include <asm/mach-types.h>
void __init early_init_dt_add_memory_arch(u64 base, u64 size)
{
arm_add_memory(base, size);
}
void * __init early_init_dt_alloc_memory_arch(u64 size, u64 align) void * __init early_init_dt_alloc_memory_arch(u64 size, u64 align)
{ {
return memblock_virt_alloc(size, align); return memblock_virt_alloc(size, align);
......
...@@ -628,15 +628,8 @@ void __init dump_machine_table(void) ...@@ -628,15 +628,8 @@ void __init dump_machine_table(void)
int __init arm_add_memory(u64 start, u64 size) int __init arm_add_memory(u64 start, u64 size)
{ {
struct membank *bank = &meminfo.bank[meminfo.nr_banks];
u64 aligned_start; u64 aligned_start;
if (meminfo.nr_banks >= NR_BANKS) {
pr_crit("NR_BANKS too low, ignoring memory at 0x%08llx\n",
(long long)start);
return -EINVAL;
}
/* /*
* Ensure that start/size are aligned to a page boundary. * Ensure that start/size are aligned to a page boundary.
* Size is appropriately rounded down, start is rounded up. * Size is appropriately rounded down, start is rounded up.
...@@ -677,17 +670,17 @@ int __init arm_add_memory(u64 start, u64 size) ...@@ -677,17 +670,17 @@ int __init arm_add_memory(u64 start, u64 size)
aligned_start = PHYS_OFFSET; aligned_start = PHYS_OFFSET;
} }
bank->start = aligned_start; start = aligned_start;
bank->size = size & ~(phys_addr_t)(PAGE_SIZE - 1); size = size & ~(phys_addr_t)(PAGE_SIZE - 1);
/* /*
* Check whether this memory region has non-zero size or * Check whether this memory region has non-zero size or
* invalid node number. * invalid node number.
*/ */
if (bank->size == 0) if (size == 0)
return -EINVAL; return -EINVAL;
meminfo.nr_banks++; memblock_add(start, size);
return 0; return 0;
} }
...@@ -695,6 +688,7 @@ int __init arm_add_memory(u64 start, u64 size) ...@@ -695,6 +688,7 @@ int __init arm_add_memory(u64 start, u64 size)
* Pick out the memory size. We look for mem=size@start, * Pick out the memory size. We look for mem=size@start,
* where start and size are "size[KkMm]" * where start and size are "size[KkMm]"
*/ */
static int __init early_mem(char *p) static int __init early_mem(char *p)
{ {
static int usermem __initdata = 0; static int usermem __initdata = 0;
...@@ -709,7 +703,8 @@ static int __init early_mem(char *p) ...@@ -709,7 +703,8 @@ static int __init early_mem(char *p)
*/ */
if (usermem == 0) { if (usermem == 0) {
usermem = 1; usermem = 1;
meminfo.nr_banks = 0; memblock_remove(memblock_start_of_DRAM(),
memblock_end_of_DRAM() - memblock_start_of_DRAM());
} }
start = PHYS_OFFSET; start = PHYS_OFFSET;
...@@ -854,13 +849,6 @@ static void __init reserve_crashkernel(void) ...@@ -854,13 +849,6 @@ static void __init reserve_crashkernel(void)
static inline void reserve_crashkernel(void) {} static inline void reserve_crashkernel(void) {}
#endif /* CONFIG_KEXEC */ #endif /* CONFIG_KEXEC */
static int __init meminfo_cmp(const void *_a, const void *_b)
{
const struct membank *a = _a, *b = _b;
long cmp = bank_pfn_start(a) - bank_pfn_start(b);
return cmp < 0 ? -1 : cmp > 0 ? 1 : 0;
}
void __init hyp_mode_check(void) void __init hyp_mode_check(void)
{ {
#ifdef CONFIG_ARM_VIRT_EXT #ifdef CONFIG_ARM_VIRT_EXT
...@@ -903,12 +891,10 @@ void __init setup_arch(char **cmdline_p) ...@@ -903,12 +891,10 @@ void __init setup_arch(char **cmdline_p)
parse_early_param(); parse_early_param();
sort(&meminfo.bank, meminfo.nr_banks, sizeof(meminfo.bank[0]), meminfo_cmp, NULL);
early_paging_init(mdesc, lookup_processor_type(read_cpuid_id())); early_paging_init(mdesc, lookup_processor_type(read_cpuid_id()));
setup_dma_zone(mdesc); setup_dma_zone(mdesc);
sanity_check_meminfo(); sanity_check_meminfo();
arm_memblock_init(&meminfo, mdesc); arm_memblock_init(mdesc);
paging_init(mdesc); paging_init(mdesc);
request_standard_resources(mdesc); request_standard_resources(mdesc);
......
...@@ -18,6 +18,7 @@ ...@@ -18,6 +18,7 @@
#include <linux/init.h> #include <linux/init.h>
#include <linux/types.h> #include <linux/types.h>
#include <linux/string.h> #include <linux/string.h>
#include <linux/memblock.h>
#include <asm/setup.h> #include <asm/setup.h>
#include <asm/mach-types.h> #include <asm/mach-types.h>
...@@ -26,11 +27,9 @@ ...@@ -26,11 +27,9 @@
#include "common.h" #include "common.h"
static void __init static void __init
fixup_clep7312(struct tag *tags, char **cmdline, struct meminfo *mi) fixup_clep7312(struct tag *tags, char **cmdline)
{ {
mi->nr_banks=1; memblock_add(0xc0000000, 0x01000000);
mi->bank[0].start = 0xc0000000;
mi->bank[0].size = 0x01000000;
} }
MACHINE_START(CLEP7212, "Cirrus Logic 7212/7312") MACHINE_START(CLEP7212, "Cirrus Logic 7212/7312")
......
...@@ -16,6 +16,7 @@ ...@@ -16,6 +16,7 @@
#include <linux/interrupt.h> #include <linux/interrupt.h>
#include <linux/backlight.h> #include <linux/backlight.h>
#include <linux/platform_device.h> #include <linux/platform_device.h>
#include <linux/memblock.h>
#include <linux/mtd/physmap.h> #include <linux/mtd/physmap.h>
#include <linux/mtd/partitions.h> #include <linux/mtd/partitions.h>
...@@ -133,7 +134,7 @@ static void __init edb7211_reserve(void) ...@@ -133,7 +134,7 @@ static void __init edb7211_reserve(void)
} }
static void __init static void __init
fixup_edb7211(struct tag *tags, char **cmdline, struct meminfo *mi) fixup_edb7211(struct tag *tags, char **cmdline)
{ {
/* /*
* Bank start addresses are not present in the information * Bank start addresses are not present in the information
...@@ -143,11 +144,8 @@ fixup_edb7211(struct tag *tags, char **cmdline, struct meminfo *mi) ...@@ -143,11 +144,8 @@ fixup_edb7211(struct tag *tags, char **cmdline, struct meminfo *mi)
* Banks sizes _are_ present in the param block, but we're * Banks sizes _are_ present in the param block, but we're
* not using that information yet. * not using that information yet.
*/ */
mi->bank[0].start = 0xc0000000; memblock_add(0xc0000000, SZ_8M);
mi->bank[0].size = SZ_8M; memblock_add(0xc1000000, SZ_8M);
mi->bank[1].start = 0xc1000000;
mi->bank[1].size = SZ_8M;
mi->nr_banks = 2;
} }
static void __init edb7211_init(void) static void __init edb7211_init(void)
......
...@@ -295,7 +295,7 @@ static struct generic_bl_info p720t_lcd_backlight_pdata = { ...@@ -295,7 +295,7 @@ static struct generic_bl_info p720t_lcd_backlight_pdata = {
}; };
static void __init static void __init
fixup_p720t(struct tag *tag, char **cmdline, struct meminfo *mi) fixup_p720t(struct tag *tag, char **cmdline)
{ {
/* /*
* Our bootloader doesn't setup any tags (yet). * Our bootloader doesn't setup any tags (yet).
......
...@@ -76,7 +76,7 @@ __initcall(cats_hw_init); ...@@ -76,7 +76,7 @@ __initcall(cats_hw_init);
* hard reboots fail on early boards. * hard reboots fail on early boards.
*/ */
static void __init static void __init
fixup_cats(struct tag *tags, char **cmdline, struct meminfo *mi) fixup_cats(struct tag *tags, char **cmdline)
{ {
#if defined(CONFIG_VGA_CONSOLE) || defined(CONFIG_DUMMY_CONSOLE) #if defined(CONFIG_VGA_CONSOLE) || defined(CONFIG_DUMMY_CONSOLE)
screen_info.orig_video_lines = 25; screen_info.orig_video_lines = 25;
......
...@@ -620,7 +620,7 @@ __initcall(nw_hw_init); ...@@ -620,7 +620,7 @@ __initcall(nw_hw_init);
* the parameter page. * the parameter page.
*/ */
static void __init static void __init
fixup_netwinder(struct tag *tags, char **cmdline, struct meminfo *mi) fixup_netwinder(struct tag *tags, char **cmdline)
{ {
#ifdef CONFIG_ISAPNP #ifdef CONFIG_ISAPNP
extern int isapnp_disable; extern int isapnp_disable;
......
...@@ -83,11 +83,6 @@ static void __init halibut_init(void) ...@@ -83,11 +83,6 @@ static void __init halibut_init(void)
platform_add_devices(devices, ARRAY_SIZE(devices)); platform_add_devices(devices, ARRAY_SIZE(devices));
} }
static void __init halibut_fixup(struct tag *tags, char **cmdline,
struct meminfo *mi)
{
}
static void __init halibut_map_io(void) static void __init halibut_map_io(void)
{ {
msm_map_common_io(); msm_map_common_io();
...@@ -100,7 +95,6 @@ static void __init halibut_init_late(void) ...@@ -100,7 +95,6 @@ static void __init halibut_init_late(void)
MACHINE_START(HALIBUT, "Halibut Board (QCT SURF7200A)") MACHINE_START(HALIBUT, "Halibut Board (QCT SURF7200A)")
.atag_offset = 0x100, .atag_offset = 0x100,
.fixup = halibut_fixup,
.map_io = halibut_map_io, .map_io = halibut_map_io,
.init_early = halibut_init_early, .init_early = halibut_init_early,
.init_irq = halibut_init_irq, .init_irq = halibut_init_irq,
......
...@@ -22,6 +22,7 @@ ...@@ -22,6 +22,7 @@
#include <linux/io.h> #include <linux/io.h>
#include <linux/kernel.h> #include <linux/kernel.h>
#include <linux/platform_device.h> #include <linux/platform_device.h>
#include <linux/memblock.h>
#include <asm/mach-types.h> #include <asm/mach-types.h>
#include <asm/mach/arch.h> #include <asm/mach/arch.h>
...@@ -52,16 +53,10 @@ static void __init mahimahi_init(void) ...@@ -52,16 +53,10 @@ static void __init mahimahi_init(void)
platform_add_devices(devices, ARRAY_SIZE(devices)); platform_add_devices(devices, ARRAY_SIZE(devices));
} }
static void __init mahimahi_fixup(struct tag *tags, char **cmdline, static void __init mahimahi_fixup(struct tag *tags, char **cmdline)
struct meminfo *mi)
{ {
mi->nr_banks = 2; memblock_add(PHYS_OFFSET, 219*SZ_1M);
mi->bank[0].start = PHYS_OFFSET; memblock_add(MSM_HIGHMEM_BASE, MSM_HIGHMEM_SIZE);
mi->bank[0].node = PHYS_TO_NID(PHYS_OFFSET);
mi->bank[0].size = (219*1024*1024);
mi->bank[1].start = MSM_HIGHMEM_BASE;
mi->bank[1].node = PHYS_TO_NID(MSM_HIGHMEM_BASE);
mi->bank[1].size = MSM_HIGHMEM_SIZE;
} }
static void __init mahimahi_map_io(void) static void __init mahimahi_map_io(void)
......
...@@ -40,8 +40,7 @@ ...@@ -40,8 +40,7 @@
#include "proc_comm.h" #include "proc_comm.h"
#include "common.h" #include "common.h"
static void __init msm7x30_fixup(struct tag *tag, char **cmdline, static void __init msm7x30_fixup(struct tag *tag, char **cmdline)
struct meminfo *mi)
{ {
for (; tag->hdr.size; tag = tag_next(tag)) for (; tag->hdr.size; tag = tag_next(tag))
if (tag->hdr.tag == ATAG_MEM && tag->u.mem.start == 0x200000) { if (tag->hdr.tag == ATAG_MEM && tag->u.mem.start == 0x200000) {
......
...@@ -35,6 +35,7 @@ ...@@ -35,6 +35,7 @@
#include <linux/mtd/nand.h> #include <linux/mtd/nand.h>
#include <linux/mtd/partitions.h> #include <linux/mtd/partitions.h>
#include <linux/memblock.h>
#include "gpio_chip.h" #include "gpio_chip.h"
#include "board-sapphire.h" #include "board-sapphire.h"
...@@ -74,22 +75,18 @@ static struct map_desc sapphire_io_desc[] __initdata = { ...@@ -74,22 +75,18 @@ static struct map_desc sapphire_io_desc[] __initdata = {
} }
}; };
static void __init sapphire_fixup(struct tag *tags, char **cmdline, static void __init sapphire_fixup(struct tag *tags, char **cmdline)
struct meminfo *mi)
{ {
int smi_sz = parse_tag_smi((const struct tag *)tags); int smi_sz = parse_tag_smi((const struct tag *)tags);
mi->nr_banks = 1;
mi->bank[0].start = PHYS_OFFSET;
mi->bank[0].node = PHYS_TO_NID(PHYS_OFFSET);
if (smi_sz == 32) { if (smi_sz == 32) {
mi->bank[0].size = (84*1024*1024); memblock_add(PHYS_OFFSET, 84*SZ_1M);
} else if (smi_sz == 64) { } else if (smi_sz == 64) {
mi->bank[0].size = (101*1024*1024); memblock_add(PHYS_OFFSET, 101*SZ_1M);
} else { } else {
memblock_add(PHYS_OFFSET, 101*SZ_1M);
/* Give a default value when not get smi size */ /* Give a default value when not get smi size */
smi_sz = 64; smi_sz = 64;
mi->bank[0].size = (101*1024*1024);
} }
} }
......
...@@ -19,6 +19,7 @@ ...@@ -19,6 +19,7 @@
#include <linux/init.h> #include <linux/init.h>
#include <linux/platform_device.h> #include <linux/platform_device.h>
#include <linux/clkdev.h> #include <linux/clkdev.h>
#include <linux/memblock.h>
#include <asm/system_info.h> #include <asm/system_info.h>
#include <asm/mach-types.h> #include <asm/mach-types.h>
...@@ -55,12 +56,9 @@ static void __init trout_init_irq(void) ...@@ -55,12 +56,9 @@ static void __init trout_init_irq(void)
msm_init_irq(); msm_init_irq();
} }
static void __init trout_fixup(struct tag *tags, char **cmdline, static void __init trout_fixup(struct tag *tags, char **cmdline)
struct meminfo *mi)
{ {
mi->nr_banks = 1; memblock_add(PHYS_OFFSET, 101*SZ_1M);
mi->bank[0].start = PHYS_OFFSET;
mi->bank[0].size = (101*1024*1024);
} }
static void __init trout_init(void) static void __init trout_init(void)
......
...@@ -365,8 +365,7 @@ void orion5x_restart(enum reboot_mode mode, const char *cmd) ...@@ -365,8 +365,7 @@ void orion5x_restart(enum reboot_mode mode, const char *cmd)
* Many orion-based systems have buggy bootloader implementations. * Many orion-based systems have buggy bootloader implementations.
* This is a common fixup for bogus memory tags. * This is a common fixup for bogus memory tags.
*/ */
void __init tag_fixup_mem32(struct tag *t, char **from, void __init tag_fixup_mem32(struct tag *t, char **from)
struct meminfo *meminfo)
{ {
for (; t->hdr.size; t = tag_next(t)) for (; t->hdr.size; t = tag_next(t))
if (t->hdr.tag == ATAG_MEM && if (t->hdr.tag == ATAG_MEM &&
......
...@@ -71,9 +71,8 @@ void edmini_v2_init(void); ...@@ -71,9 +71,8 @@ void edmini_v2_init(void);
static inline void edmini_v2_init(void) {}; static inline void edmini_v2_init(void) {};
#endif #endif
struct meminfo;
struct tag; struct tag;
extern void __init tag_fixup_mem32(struct tag *, char **, struct meminfo *); extern void __init tag_fixup_mem32(struct tag *, char **);
/***************************************************************************** /*****************************************************************************
* Helpers to access Orion registers * Helpers to access Orion registers
......
...@@ -837,8 +837,7 @@ static void __init cm_x300_init(void) ...@@ -837,8 +837,7 @@ static void __init cm_x300_init(void)
cm_x300_init_bl(); cm_x300_init_bl();
} }
static void __init cm_x300_fixup(struct tag *tags, char **cmdline, static void __init cm_x300_fixup(struct tag *tags, char **cmdline)
struct meminfo *mi)
{ {
/* Make sure that mi->bank[0].start = PHYS_ADDR */ /* Make sure that mi->bank[0].start = PHYS_ADDR */
for (; tags->hdr.size; tags = tag_next(tags)) for (; tags->hdr.size; tags = tag_next(tags))
......
...@@ -34,6 +34,7 @@ ...@@ -34,6 +34,7 @@
#include <linux/input/matrix_keypad.h> #include <linux/input/matrix_keypad.h>
#include <linux/gpio_keys.h> #include <linux/gpio_keys.h>
#include <linux/module.h> #include <linux/module.h>
#include <linux/memblock.h>
#include <video/w100fb.h> #include <video/w100fb.h>
#include <asm/setup.h> #include <asm/setup.h>
...@@ -753,16 +754,13 @@ static void __init corgi_init(void) ...@@ -753,16 +754,13 @@ static void __init corgi_init(void)
platform_add_devices(devices, ARRAY_SIZE(devices)); platform_add_devices(devices, ARRAY_SIZE(devices));
} }
static void __init fixup_corgi(struct tag *tags, char **cmdline, static void __init fixup_corgi(struct tag *tags, char **cmdline)
struct meminfo *mi)
{ {
sharpsl_save_param(); sharpsl_save_param();
mi->nr_banks=1;
mi->bank[0].start = 0xa0000000;
if (machine_is_corgi()) if (machine_is_corgi())
mi->bank[0].size = (32*1024*1024); memblock_add(0xa0000000, SZ_32M);
else else
mi->bank[0].size = (64*1024*1024); memblock_add(0xa0000000, SZ_64M);
} }
#ifdef CONFIG_MACH_CORGI #ifdef CONFIG_MACH_CORGI
......
...@@ -21,6 +21,7 @@ ...@@ -21,6 +21,7 @@
#include <linux/mtd/nand.h> #include <linux/mtd/nand.h>
#include <linux/mtd/partitions.h> #include <linux/mtd/partitions.h>
#include <linux/usb/gpio_vbus.h> #include <linux/usb/gpio_vbus.h>
#include <linux/memblock.h>
#include <video/w100fb.h> #include <video/w100fb.h>
...@@ -41,14 +42,12 @@ ...@@ -41,14 +42,12 @@
#include "clock.h" #include "clock.h"
/* Only e800 has 128MB RAM */ /* Only e800 has 128MB RAM */
void __init eseries_fixup(struct tag *tags, char **cmdline, struct meminfo *mi) void __init eseries_fixup(struct tag *tags, char **cmdline)
{ {
mi->nr_banks=1;
mi->bank[0].start = 0xa0000000;
if (machine_is_e800()) if (machine_is_e800())
mi->bank[0].size = (128*1024*1024); memblock_add(0xa0000000, SZ_128M);
else else
mi->bank[0].size = (64*1024*1024); memblock_add(0xa0000000, SZ_64M);
} }
struct gpio_vbus_mach_info e7xx_udc_info = { struct gpio_vbus_mach_info e7xx_udc_info = {
......
...@@ -29,6 +29,7 @@ ...@@ -29,6 +29,7 @@
#include <linux/spi/ads7846.h> #include <linux/spi/ads7846.h>
#include <linux/spi/pxa2xx_spi.h> #include <linux/spi/pxa2xx_spi.h>
#include <linux/mtd/sharpsl.h> #include <linux/mtd/sharpsl.h>
#include <linux/memblock.h>
#include <mach/hardware.h> #include <mach/hardware.h>
#include <asm/mach-types.h> #include <asm/mach-types.h>
...@@ -456,13 +457,10 @@ static void __init poodle_init(void) ...@@ -456,13 +457,10 @@ static void __init poodle_init(void)
poodle_init_spi(); poodle_init_spi();
} }
static void __init fixup_poodle(struct tag *tags, char **cmdline, static void __init fixup_poodle(struct tag *tags, char **cmdline)
struct meminfo *mi)
{ {
sharpsl_save_param(); sharpsl_save_param();
mi->nr_banks=1; memblock_add(0xa0000000, SZ_32M);
mi->bank[0].start = 0xa0000000;
mi->bank[0].size = (32*1024*1024);
} }
MACHINE_START(POODLE, "SHARP Poodle") MACHINE_START(POODLE, "SHARP Poodle")
......
...@@ -32,6 +32,7 @@ ...@@ -32,6 +32,7 @@
#include <linux/io.h> #include <linux/io.h>
#include <linux/module.h> #include <linux/module.h>
#include <linux/reboot.h> #include <linux/reboot.h>
#include <linux/memblock.h>
#include <asm/setup.h> #include <asm/setup.h>
#include <asm/mach-types.h> #include <asm/mach-types.h>
...@@ -971,13 +972,10 @@ static void __init spitz_init(void) ...@@ -971,13 +972,10 @@ static void __init spitz_init(void)
spitz_i2c_init(); spitz_i2c_init();
} }
static void __init spitz_fixup(struct tag *tags, char **cmdline, static void __init spitz_fixup(struct tag *tags, char **cmdline)
struct meminfo *mi)
{ {
sharpsl_save_param(); sharpsl_save_param();
mi->nr_banks = 1; memblock_add(0xa0000000, SZ_64M);
mi->bank[0].start = 0xa0000000;
mi->bank[0].size = (64*1024*1024);
} }
#ifdef CONFIG_MACH_SPITZ #ifdef CONFIG_MACH_SPITZ
......
...@@ -37,6 +37,7 @@ ...@@ -37,6 +37,7 @@
#include <linux/i2c/pxa-i2c.h> #include <linux/i2c/pxa-i2c.h>
#include <linux/usb/gpio_vbus.h> #include <linux/usb/gpio_vbus.h>
#include <linux/reboot.h> #include <linux/reboot.h>
#include <linux/memblock.h>
#include <asm/setup.h> #include <asm/setup.h>
#include <asm/mach-types.h> #include <asm/mach-types.h>
...@@ -960,13 +961,10 @@ static void __init tosa_init(void) ...@@ -960,13 +961,10 @@ static void __init tosa_init(void)
platform_add_devices(devices, ARRAY_SIZE(devices)); platform_add_devices(devices, ARRAY_SIZE(devices));
} }
static void __init fixup_tosa(struct tag *tags, char **cmdline, static void __init fixup_tosa(struct tag *tags, char **cmdline)
struct meminfo *mi)
{ {
sharpsl_save_param(); sharpsl_save_param();
mi->nr_banks=1; memblock_add(0xa0000000, SZ_64M);
mi->bank[0].start = 0xa0000000;
mi->bank[0].size = (64*1024*1024);
} }
MACHINE_START(TOSA, "SHARP Tosa") MACHINE_START(TOSA, "SHARP Tosa")
......
...@@ -31,6 +31,7 @@ ...@@ -31,6 +31,7 @@
#include <linux/amba/mmci.h> #include <linux/amba/mmci.h>
#include <linux/gfp.h> #include <linux/gfp.h>
#include <linux/mtd/physmap.h> #include <linux/mtd/physmap.h>
#include <linux/memblock.h>
#include <mach/hardware.h> #include <mach/hardware.h>
#include <asm/irq.h> #include <asm/irq.h>
...@@ -370,19 +371,15 @@ void __init realview_timer_init(unsigned int timer_irq) ...@@ -370,19 +371,15 @@ void __init realview_timer_init(unsigned int timer_irq)
/* /*
* Setup the memory banks. * Setup the memory banks.
*/ */
void realview_fixup(struct tag *tags, char **from, struct meminfo *meminfo) void realview_fixup(struct tag *tags, char **from)
{ {
/* /*
* Most RealView platforms have 512MB contiguous RAM at 0x70000000. * Most RealView platforms have 512MB contiguous RAM at 0x70000000.
* Half of this is mirrored at 0. * Half of this is mirrored at 0.
*/ */
#ifdef CONFIG_REALVIEW_HIGH_PHYS_OFFSET #ifdef CONFIG_REALVIEW_HIGH_PHYS_OFFSET
meminfo->bank[0].start = 0x70000000; memblock_add(0x70000000, SZ_512M);
meminfo->bank[0].size = SZ_512M;
meminfo->nr_banks = 1;
#else #else
meminfo->bank[0].start = 0; memblock_add(0, SZ_256M);
meminfo->bank[0].size = SZ_256M;
meminfo->nr_banks = 1;
#endif #endif
} }
...@@ -51,8 +51,7 @@ extern int realview_flash_register(struct resource *res, u32 num); ...@@ -51,8 +51,7 @@ extern int realview_flash_register(struct resource *res, u32 num);
extern int realview_eth_register(const char *name, struct resource *res); extern int realview_eth_register(const char *name, struct resource *res);
extern int realview_usb_register(struct resource *res); extern int realview_usb_register(struct resource *res);
extern void realview_init_early(void); extern void realview_init_early(void);
extern void realview_fixup(struct tag *tags, char **from, extern void realview_fixup(struct tag *tags, char **from);
struct meminfo *meminfo);
extern struct smp_operations realview_smp_ops; extern struct smp_operations realview_smp_ops;
extern void realview_cpu_die(unsigned int cpu); extern void realview_cpu_die(unsigned int cpu);
......
...@@ -32,6 +32,7 @@ ...@@ -32,6 +32,7 @@
#include <linux/irqchip/arm-gic.h> #include <linux/irqchip/arm-gic.h>
#include <linux/platform_data/clk-realview.h> #include <linux/platform_data/clk-realview.h>
#include <linux/reboot.h> #include <linux/reboot.h>
#include <linux/memblock.h>
#include <mach/hardware.h> #include <mach/hardware.h>
#include <asm/irq.h> #include <asm/irq.h>
...@@ -339,15 +340,12 @@ static void realview_pb1176_restart(enum reboot_mode mode, const char *cmd) ...@@ -339,15 +340,12 @@ static void realview_pb1176_restart(enum reboot_mode mode, const char *cmd)
dsb(); dsb();
} }
static void realview_pb1176_fixup(struct tag *tags, char **from, static void realview_pb1176_fixup(struct tag *tags, char **from)
struct meminfo *meminfo)
{ {
/* /*
* RealView PB1176 only has 128MB of RAM mapped at 0. * RealView PB1176 only has 128MB of RAM mapped at 0.
*/ */
meminfo->bank[0].start = 0; memblock_add(0, SZ_128M);
meminfo->bank[0].size = SZ_128M;
meminfo->nr_banks = 1;
} }
static void __init realview_pb1176_init(void) static void __init realview_pb1176_init(void)
......
...@@ -29,6 +29,7 @@ ...@@ -29,6 +29,7 @@
#include <linux/irqchip/arm-gic.h> #include <linux/irqchip/arm-gic.h>
#include <linux/platform_data/clk-realview.h> #include <linux/platform_data/clk-realview.h>
#include <linux/reboot.h> #include <linux/reboot.h>
#include <linux/memblock.h>
#include <asm/irq.h> #include <asm/irq.h>
#include <asm/mach-types.h> #include <asm/mach-types.h>
...@@ -325,23 +326,19 @@ static void __init realview_pbx_timer_init(void) ...@@ -325,23 +326,19 @@ static void __init realview_pbx_timer_init(void)
realview_pbx_twd_init(); realview_pbx_twd_init();
} }
static void realview_pbx_fixup(struct tag *tags, char **from, static void realview_pbx_fixup(struct tag *tags, char **from)
struct meminfo *meminfo)
{ {
#ifdef CONFIG_SPARSEMEM #ifdef CONFIG_SPARSEMEM
/* /*
* Memory configuration with SPARSEMEM enabled on RealView PBX (see * Memory configuration with SPARSEMEM enabled on RealView PBX (see
* asm/mach/memory.h for more information). * asm/mach/memory.h for more information).
*/ */
meminfo->bank[0].start = 0;
meminfo->bank[0].size = SZ_256M; memblock_add(0, SZ_256M);
meminfo->bank[1].start = 0x20000000; memblock_add(0x20000000, SZ_512M);
meminfo->bank[1].size = SZ_512M; memblock_add(0x80000000, SZ_256M);
meminfo->bank[2].start = 0x80000000;
meminfo->bank[2].size = SZ_256M;
meminfo->nr_banks = 3;
#else #else
realview_fixup(tags, from, meminfo); realview_fixup(tags, from);
#endif #endif
} }
......
...@@ -22,6 +22,7 @@ ...@@ -22,6 +22,7 @@
#include <linux/serial_s3c.h> #include <linux/serial_s3c.h>
#include <linux/platform_device.h> #include <linux/platform_device.h>
#include <linux/io.h> #include <linux/io.h>
#include <linux/memblock.h>
#include <asm/mach/arch.h> #include <asm/mach/arch.h>
#include <asm/mach/map.h> #include <asm/mach/map.h>
...@@ -93,13 +94,10 @@ static struct platform_device *smdk2413_devices[] __initdata = { ...@@ -93,13 +94,10 @@ static struct platform_device *smdk2413_devices[] __initdata = {
&s3c2412_device_dma, &s3c2412_device_dma,
}; };
static void __init smdk2413_fixup(struct tag *tags, char **cmdline, static void __init smdk2413_fixup(struct tag *tags, char **cmdline)
struct meminfo *mi)
{ {
if (tags != phys_to_virt(S3C2410_SDRAM_PA + 0x100)) { if (tags != phys_to_virt(S3C2410_SDRAM_PA + 0x100)) {
mi->nr_banks=1; memblock_add(0x30000000, SZ_64M);
mi->bank[0].start = 0x30000000;
mi->bank[0].size = SZ_64M;
} }
} }
......
...@@ -23,6 +23,7 @@ ...@@ -23,6 +23,7 @@
#include <linux/mtd/nand.h> #include <linux/mtd/nand.h>
#include <linux/mtd/nand_ecc.h> #include <linux/mtd/nand_ecc.h>
#include <linux/mtd/partitions.h> #include <linux/mtd/partitions.h>
#include <linux/memblock.h>
#include <asm/mach/arch.h> #include <asm/mach/arch.h>
#include <asm/mach/map.h> #include <asm/mach/map.h>
...@@ -129,13 +130,10 @@ static struct platform_device *vstms_devices[] __initdata = { ...@@ -129,13 +130,10 @@ static struct platform_device *vstms_devices[] __initdata = {
&s3c2412_device_dma, &s3c2412_device_dma,
}; };
static void __init vstms_fixup(struct tag *tags, char **cmdline, static void __init vstms_fixup(struct tag *tags, char **cmdline)
struct meminfo *mi)
{ {
if (tags != phys_to_virt(S3C2410_SDRAM_PA + 0x100)) { if (tags != phys_to_virt(S3C2410_SDRAM_PA + 0x100)) {
mi->nr_banks=1; memblock_add(0x30000000, SZ_64M);
mi->bank[0].start = 0x30000000;
mi->bank[0].size = SZ_64M;
} }
} }
......
...@@ -531,7 +531,7 @@ static void __init get_assabet_scr(void) ...@@ -531,7 +531,7 @@ static void __init get_assabet_scr(void)
} }
static void __init static void __init
fixup_assabet(struct tag *tags, char **cmdline, struct meminfo *mi) fixup_assabet(struct tag *tags, char **cmdline)
{ {
/* This must be done before any call to machine_has_neponset() */ /* This must be done before any call to machine_has_neponset() */
map_sa1100_gpio_regs(); map_sa1100_gpio_regs();
......
...@@ -81,24 +81,21 @@ __tagtable(ATAG_INITRD2, parse_tag_initrd2); ...@@ -81,24 +81,21 @@ __tagtable(ATAG_INITRD2, parse_tag_initrd2);
* initialization functions, as well as show_mem() for the skipping * initialization functions, as well as show_mem() for the skipping
* of holes in the memory map. It is populated by arm_add_memory(). * of holes in the memory map. It is populated by arm_add_memory().
*/ */
struct meminfo meminfo;
void show_mem(unsigned int filter) void show_mem(unsigned int filter)
{ {
int free = 0, total = 0, reserved = 0; int free = 0, total = 0, reserved = 0;
int shared = 0, cached = 0, slab = 0, i; int shared = 0, cached = 0, slab = 0;
struct meminfo * mi = &meminfo; struct memblock_region *reg;
printk("Mem-info:\n"); printk("Mem-info:\n");
show_free_areas(filter); show_free_areas(filter);
for_each_bank (i, mi) { for_each_memblock (memory, reg) {
struct membank *bank = &mi->bank[i];
unsigned int pfn1, pfn2; unsigned int pfn1, pfn2;
struct page *page, *end; struct page *page, *end;
pfn1 = bank_pfn_start(bank); pfn1 = memblock_region_memory_base_pfn(reg);
pfn2 = bank_pfn_end(bank); pfn2 = memblock_region_memory_end_pfn(reg);
page = pfn_to_page(pfn1); page = pfn_to_page(pfn1);
end = pfn_to_page(pfn2 - 1) + 1; end = pfn_to_page(pfn2 - 1) + 1;
...@@ -115,8 +112,9 @@ void show_mem(unsigned int filter) ...@@ -115,8 +112,9 @@ void show_mem(unsigned int filter)
free++; free++;
else else
shared += page_count(page) - 1; shared += page_count(page) - 1;
page++; pfn1++;
} while (page < end); page = pfn_to_page(pfn1);
} while (pfn1 < pfn2);
} }
printk("%d pages of RAM\n", total); printk("%d pages of RAM\n", total);
...@@ -130,16 +128,9 @@ void show_mem(unsigned int filter) ...@@ -130,16 +128,9 @@ void show_mem(unsigned int filter)
static void __init find_limits(unsigned long *min, unsigned long *max_low, static void __init find_limits(unsigned long *min, unsigned long *max_low,
unsigned long *max_high) unsigned long *max_high)
{ {
struct meminfo *mi = &meminfo; *max_low = PFN_DOWN(memblock_get_current_limit());
int i; *min = PFN_UP(memblock_start_of_DRAM());
*max_high = PFN_DOWN(memblock_end_of_DRAM());
/* This assumes the meminfo array is properly sorted */
*min = bank_pfn_start(&mi->bank[0]);
for_each_bank (i, mi)
if (mi->bank[i].highmem)
break;
*max_low = bank_pfn_end(&mi->bank[i - 1]);
*max_high = bank_pfn_end(&mi->bank[mi->nr_banks - 1]);
} }
#ifdef CONFIG_ZONE_DMA #ifdef CONFIG_ZONE_DMA
...@@ -274,14 +265,8 @@ phys_addr_t __init arm_memblock_steal(phys_addr_t size, phys_addr_t align) ...@@ -274,14 +265,8 @@ phys_addr_t __init arm_memblock_steal(phys_addr_t size, phys_addr_t align)
return phys; return phys;
} }
void __init arm_memblock_init(struct meminfo *mi, void __init arm_memblock_init(const struct machine_desc *mdesc)
const struct machine_desc *mdesc)
{ {
int i;
for (i = 0; i < mi->nr_banks; i++)
memblock_add(mi->bank[i].start, mi->bank[i].size);
/* Register the kernel text, kernel data and initrd with memblock. */ /* Register the kernel text, kernel data and initrd with memblock. */
#ifdef CONFIG_XIP_KERNEL #ifdef CONFIG_XIP_KERNEL
memblock_reserve(__pa(_sdata), _end - _sdata); memblock_reserve(__pa(_sdata), _end - _sdata);
...@@ -413,54 +398,53 @@ free_memmap(unsigned long start_pfn, unsigned long end_pfn) ...@@ -413,54 +398,53 @@ free_memmap(unsigned long start_pfn, unsigned long end_pfn)
/* /*
* The mem_map array can get very big. Free the unused area of the memory map. * The mem_map array can get very big. Free the unused area of the memory map.
*/ */
static void __init free_unused_memmap(struct meminfo *mi) static void __init free_unused_memmap(void)
{ {
unsigned long bank_start, prev_bank_end = 0; unsigned long start, prev_end = 0;
unsigned int i; struct memblock_region *reg;
/* /*
* This relies on each bank being in address order. * This relies on each bank being in address order.
* The banks are sorted previously in bootmem_init(). * The banks are sorted previously in bootmem_init().
*/ */
for_each_bank(i, mi) { for_each_memblock(memory, reg) {
struct membank *bank = &mi->bank[i]; start = memblock_region_memory_base_pfn(reg);
bank_start = bank_pfn_start(bank);
#ifdef CONFIG_SPARSEMEM #ifdef CONFIG_SPARSEMEM
/* /*
* Take care not to free memmap entries that don't exist * Take care not to free memmap entries that don't exist
* due to SPARSEMEM sections which aren't present. * due to SPARSEMEM sections which aren't present.
*/ */
bank_start = min(bank_start, start = min(start,
ALIGN(prev_bank_end, PAGES_PER_SECTION)); ALIGN(prev_end, PAGES_PER_SECTION));
#else #else
/* /*
* Align down here since the VM subsystem insists that the * Align down here since the VM subsystem insists that the
* memmap entries are valid from the bank start aligned to * memmap entries are valid from the bank start aligned to
* MAX_ORDER_NR_PAGES. * MAX_ORDER_NR_PAGES.
*/ */
bank_start = round_down(bank_start, MAX_ORDER_NR_PAGES); start = round_down(start, MAX_ORDER_NR_PAGES);
#endif #endif
/* /*
* If we had a previous bank, and there is a space * If we had a previous bank, and there is a space
* between the current bank and the previous, free it. * between the current bank and the previous, free it.
*/ */
if (prev_bank_end && prev_bank_end < bank_start) if (prev_end && prev_end < start)
free_memmap(prev_bank_end, bank_start); free_memmap(prev_end, start);
/* /*
* Align up here since the VM subsystem insists that the * Align up here since the VM subsystem insists that the
* memmap entries are valid from the bank end aligned to * memmap entries are valid from the bank end aligned to
* MAX_ORDER_NR_PAGES. * MAX_ORDER_NR_PAGES.
*/ */
prev_bank_end = ALIGN(bank_pfn_end(bank), MAX_ORDER_NR_PAGES); prev_end = ALIGN(memblock_region_memory_end_pfn(reg),
MAX_ORDER_NR_PAGES);
} }
#ifdef CONFIG_SPARSEMEM #ifdef CONFIG_SPARSEMEM
if (!IS_ALIGNED(prev_bank_end, PAGES_PER_SECTION)) if (!IS_ALIGNED(prev_end, PAGES_PER_SECTION))
free_memmap(prev_bank_end, free_memmap(prev_end,
ALIGN(prev_bank_end, PAGES_PER_SECTION)); ALIGN(prev_end, PAGES_PER_SECTION));
#endif #endif
} }
...@@ -536,7 +520,7 @@ void __init mem_init(void) ...@@ -536,7 +520,7 @@ void __init mem_init(void)
set_max_mapnr(pfn_to_page(max_pfn) - mem_map); set_max_mapnr(pfn_to_page(max_pfn) - mem_map);
/* this will put all unused low memory onto the freelists */ /* this will put all unused low memory onto the freelists */
free_unused_memmap(&meminfo); free_unused_memmap();
free_all_bootmem(); free_all_bootmem();
#ifdef CONFIG_SA1111 #ifdef CONFIG_SA1111
......
...@@ -1062,74 +1062,47 @@ phys_addr_t arm_lowmem_limit __initdata = 0; ...@@ -1062,74 +1062,47 @@ phys_addr_t arm_lowmem_limit __initdata = 0;
void __init sanity_check_meminfo(void) void __init sanity_check_meminfo(void)
{ {
phys_addr_t memblock_limit = 0; phys_addr_t memblock_limit = 0;
int i, j, highmem = 0; int highmem = 0;
phys_addr_t vmalloc_limit = __pa(vmalloc_min - 1) + 1; phys_addr_t vmalloc_limit = __pa(vmalloc_min - 1) + 1;
struct memblock_region *reg;
for (i = 0, j = 0; i < meminfo.nr_banks; i++) { for_each_memblock(memory, reg) {
struct membank *bank = &meminfo.bank[j]; phys_addr_t block_start = reg->base;
phys_addr_t size_limit; phys_addr_t block_end = reg->base + reg->size;
phys_addr_t size_limit = reg->size;
*bank = meminfo.bank[i];
size_limit = bank->size;
if (bank->start >= vmalloc_limit) if (reg->base >= vmalloc_limit)
highmem = 1; highmem = 1;
else else
size_limit = vmalloc_limit - bank->start; size_limit = vmalloc_limit - reg->base;
bank->highmem = highmem;
#ifdef CONFIG_HIGHMEM if (!IS_ENABLED(CONFIG_HIGHMEM) || cache_is_vipt_aliasing()) {
/*
* Split those memory banks which are partially overlapping
* the vmalloc area greatly simplifying things later.
*/
if (!highmem && bank->size > size_limit) {
if (meminfo.nr_banks >= NR_BANKS) {
printk(KERN_CRIT "NR_BANKS too low, "
"ignoring high memory\n");
} else {
memmove(bank + 1, bank,
(meminfo.nr_banks - i) * sizeof(*bank));
meminfo.nr_banks++;
i++;
bank[1].size -= size_limit;
bank[1].start = vmalloc_limit;
bank[1].highmem = highmem = 1;
j++;
}
bank->size = size_limit;
}
#else
/*
* Highmem banks not allowed with !CONFIG_HIGHMEM.
*/
if (highmem) { if (highmem) {
printk(KERN_NOTICE "Ignoring RAM at %.8llx-%.8llx " pr_notice("Ignoring RAM at %pa-%pa (!CONFIG_HIGHMEM)\n",
"(!CONFIG_HIGHMEM).\n", &block_start, &block_end);
(unsigned long long)bank->start, memblock_remove(reg->base, reg->size);
(unsigned long long)bank->start + bank->size - 1);
continue; continue;
} }
/* if (reg->size > size_limit) {
* Check whether this memory bank would partially overlap phys_addr_t overlap_size = reg->size - size_limit;
* the vmalloc area.
*/ pr_notice("Truncating RAM at %pa-%pa to -%pa",
if (bank->size > size_limit) { &block_start, &block_end, &vmalloc_limit);
printk(KERN_NOTICE "Truncating RAM at %.8llx-%.8llx " memblock_remove(vmalloc_limit, overlap_size);
"to -%.8llx (vmalloc region overlap).\n", block_end = vmalloc_limit;
(unsigned long long)bank->start, }
(unsigned long long)bank->start + bank->size - 1,
(unsigned long long)bank->start + size_limit - 1);
bank->size = size_limit;
} }
#endif
if (!bank->highmem) {
phys_addr_t bank_end = bank->start + bank->size;
if (bank_end > arm_lowmem_limit) if (!highmem) {
arm_lowmem_limit = bank_end; if (block_end > arm_lowmem_limit) {
if (reg->size > size_limit)
arm_lowmem_limit = vmalloc_limit;
else
arm_lowmem_limit = block_end;
}
/* /*
* Find the first non-section-aligned page, and point * Find the first non-section-aligned page, and point
...@@ -1145,35 +1118,15 @@ void __init sanity_check_meminfo(void) ...@@ -1145,35 +1118,15 @@ void __init sanity_check_meminfo(void)
* occurs before any free memory is mapped. * occurs before any free memory is mapped.
*/ */
if (!memblock_limit) { if (!memblock_limit) {
if (!IS_ALIGNED(bank->start, SECTION_SIZE)) if (!IS_ALIGNED(block_start, SECTION_SIZE))
memblock_limit = bank->start; memblock_limit = block_start;
else if (!IS_ALIGNED(bank_end, SECTION_SIZE)) else if (!IS_ALIGNED(block_end, SECTION_SIZE))
memblock_limit = bank_end; memblock_limit = arm_lowmem_limit;
}
}
j++;
} }
#ifdef CONFIG_HIGHMEM
if (highmem) {
const char *reason = NULL;
if (cache_is_vipt_aliasing()) {
/*
* Interactions between kmap and other mappings
* make highmem support with aliasing VIPT caches
* rather difficult.
*/
reason = "with VIPT aliasing cache";
} }
if (reason) {
printk(KERN_CRIT "HIGHMEM is not supported %s, ignoring high memory\n",
reason);
while (j > 0 && meminfo.bank[j - 1].highmem)
j--;
} }
}
#endif
meminfo.nr_banks = j;
high_memory = __va(arm_lowmem_limit - 1) + 1; high_memory = __va(arm_lowmem_limit - 1) + 1;
/* /*
......
...@@ -88,30 +88,35 @@ static unsigned long irbar_read(void) ...@@ -88,30 +88,35 @@ static unsigned long irbar_read(void)
void __init sanity_check_meminfo_mpu(void) void __init sanity_check_meminfo_mpu(void)
{ {
int i; int i;
struct membank *bank = meminfo.bank;
phys_addr_t phys_offset = PHYS_OFFSET; phys_addr_t phys_offset = PHYS_OFFSET;
phys_addr_t aligned_region_size, specified_mem_size, rounded_mem_size; phys_addr_t aligned_region_size, specified_mem_size, rounded_mem_size;
struct memblock_region *reg;
bool first = true;
phys_addr_t mem_start;
phys_addr_t mem_end;
/* Initially only use memory continuous from PHYS_OFFSET */ for_each_memblock(memory, reg) {
if (bank_phys_start(&bank[0]) != phys_offset) if (first) {
/*
* Initially only use memory continuous from
* PHYS_OFFSET */
if (reg->base != phys_offset)
panic("First memory bank must be contiguous from PHYS_OFFSET"); panic("First memory bank must be contiguous from PHYS_OFFSET");
/* Banks have already been sorted by start address */ mem_start = reg->base;
for (i = 1; i < meminfo.nr_banks; i++) { mem_end = reg->base + reg->size;
if (bank[i].start <= bank_phys_end(&bank[0]) && specified_mem_size = reg->size;
bank_phys_end(&bank[i]) > bank_phys_end(&bank[0])) { first = false;
bank[0].size = bank_phys_end(&bank[i]) - bank[0].start;
} else { } else {
pr_notice("Ignoring RAM after 0x%.8lx. " /*
"First non-contiguous (ignored) bank start: 0x%.8lx\n", * memblock auto merges contiguous blocks, remove
(unsigned long)bank_phys_end(&bank[0]), * all blocks afterwards
(unsigned long)bank_phys_start(&bank[i])); */
break; pr_notice("Ignoring RAM after %pa, memory at %pa ignored\n",
&mem_start, &reg->base);
memblock_remove(reg->base, reg->size);
} }
} }
/* All contiguous banks are now merged in to the first bank */
meminfo.nr_banks = 1;
specified_mem_size = bank[0].size;
/* /*
* MPU has curious alignment requirements: Size must be power of 2, and * MPU has curious alignment requirements: Size must be power of 2, and
...@@ -128,23 +133,24 @@ void __init sanity_check_meminfo_mpu(void) ...@@ -128,23 +133,24 @@ void __init sanity_check_meminfo_mpu(void)
*/ */
aligned_region_size = (phys_offset - 1) ^ (phys_offset); aligned_region_size = (phys_offset - 1) ^ (phys_offset);
/* Find the max power-of-two sized region that fits inside our bank */ /* Find the max power-of-two sized region that fits inside our bank */
rounded_mem_size = (1 << __fls(bank[0].size)) - 1; rounded_mem_size = (1 << __fls(specified_mem_size)) - 1;
/* The actual region size is the smaller of the two */ /* The actual region size is the smaller of the two */
aligned_region_size = aligned_region_size < rounded_mem_size aligned_region_size = aligned_region_size < rounded_mem_size
? aligned_region_size + 1 ? aligned_region_size + 1
: rounded_mem_size + 1; : rounded_mem_size + 1;
if (aligned_region_size != specified_mem_size) if (aligned_region_size != specified_mem_size) {
pr_warn("Truncating memory from 0x%.8lx to 0x%.8lx (MPU region constraints)", pr_warn("Truncating memory from %pa to %pa (MPU region constraints)",
(unsigned long)specified_mem_size, &specified_mem_size, &aligned_region_size);
(unsigned long)aligned_region_size); memblock_remove(mem_start + aligned_region_size,
specified_mem_size - aligned_round_size);
mem_end = mem_start + aligned_region_size;
}
meminfo.bank[0].size = aligned_region_size; pr_debug("MPU Region from %pa size %pa (end %pa))\n",
pr_debug("MPU Region from 0x%.8lx size 0x%.8lx (end 0x%.8lx))\n", &phys_offset, &aligned_region_size, &mem_end);
(unsigned long)phys_offset,
(unsigned long)aligned_region_size,
(unsigned long)bank_phys_end(&bank[0]));
} }
...@@ -292,7 +298,7 @@ void __init sanity_check_meminfo(void) ...@@ -292,7 +298,7 @@ void __init sanity_check_meminfo(void)
{ {
phys_addr_t end; phys_addr_t end;
sanity_check_meminfo_mpu(); sanity_check_meminfo_mpu();
end = bank_phys_end(&meminfo.bank[meminfo.nr_banks - 1]); end = memblock_end_of_DRAM();
high_memory = __va(end - 1) + 1; high_memory = __va(end - 1) + 1;
} }
......
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