diff options
Diffstat (limited to 'arch')
36 files changed, 179 insertions, 333 deletions
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig index ce64b7f66328..03551fafb1fd 100644 --- a/arch/arm/Kconfig +++ b/arch/arm/Kconfig @@ -1101,11 +1101,6 @@ source "arch/arm/firmware/Kconfig" source arch/arm/mm/Kconfig -config ARM_NR_BANKS - int - default 16 if ARCH_EP93XX - default 8 - config IWMMXT bool "Enable iWMMXt support" if !CPU_PJ4 depends on CPU_XSCALE || CPU_XSC3 || CPU_MOHAWK || CPU_PJ4 diff --git a/arch/arm/boot/compressed/atags_to_fdt.c b/arch/arm/boot/compressed/atags_to_fdt.c index d1153c8a765a..9448aa0c6686 100644 --- a/arch/arm/boot/compressed/atags_to_fdt.c +++ b/arch/arm/boot/compressed/atags_to_fdt.c @@ -7,6 +7,8 @@ #define do_extend_cmdline 0 #endif +#define NR_BANKS 16 + static int node_offset(void *fdt, const char *node_path) { int offset = fdt_path_offset(fdt, node_path); diff --git a/arch/arm/include/asm/mach/arch.h b/arch/arm/include/asm/mach/arch.h index 17a3fa2979e8..c43473afde8a 100644 --- a/arch/arm/include/asm/mach/arch.h +++ b/arch/arm/include/asm/mach/arch.h @@ -14,7 +14,6 @@ #include <linux/reboot.h> struct tag; -struct meminfo; struct pt_regs; struct smp_operations; #ifdef CONFIG_SMP @@ -47,8 +46,7 @@ struct machine_desc { enum reboot_mode reboot_mode; /* default restart mode */ struct smp_operations *smp; /* SMP operations */ bool (*smp_init)(void); - void (*fixup)(struct tag *, char **, - struct meminfo *); + void (*fixup)(struct tag *, char **); void (*init_meminfo)(void); void (*reserve)(void);/* reserve mem blocks */ void (*map_io)(void);/* IO mapping function */ diff --git a/arch/arm/include/asm/memblock.h b/arch/arm/include/asm/memblock.h index c2f5102ae659..bf47a6c110a2 100644 --- a/arch/arm/include/asm/memblock.h +++ b/arch/arm/include/asm/memblock.h @@ -1,10 +1,9 @@ #ifndef _ASM_ARM_MEMBLOCK_H #define _ASM_ARM_MEMBLOCK_H -struct meminfo; 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); #endif diff --git a/arch/arm/include/asm/setup.h b/arch/arm/include/asm/setup.h index 8d6a089dfb76..e0adb9f1bf94 100644 --- a/arch/arm/include/asm/setup.h +++ b/arch/arm/include/asm/setup.h @@ -21,34 +21,6 @@ #define __tagtable(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 void early_print(const char *str, ...); extern void dump_machine_table(void); diff --git a/arch/arm/kernel/atags_parse.c b/arch/arm/kernel/atags_parse.c index 8c14de8180c0..7807ef58a2ab 100644 --- a/arch/arm/kernel/atags_parse.c +++ b/arch/arm/kernel/atags_parse.c @@ -22,6 +22,7 @@ #include <linux/fs.h> #include <linux/root_dev.h> #include <linux/screen_info.h> +#include <linux/memblock.h> #include <asm/setup.h> #include <asm/system_info.h> @@ -222,10 +223,10 @@ setup_machine_tags(phys_addr_t __atags_pointer, unsigned int machine_nr) } if (mdesc->fixup) - mdesc->fixup(tags, &from, &meminfo); + mdesc->fixup(tags, &from); if (tags->hdr.tag == ATAG_CORE) { - if (meminfo.nr_banks != 0) + if (memblock_phys_mem_size()) squash_mem_tags(tags); save_atags(tags); parse_tags(tags); diff --git a/arch/arm/kernel/devtree.c b/arch/arm/kernel/devtree.c index c7419a585ddc..679a83d470cc 100644 --- a/arch/arm/kernel/devtree.c +++ b/arch/arm/kernel/devtree.c @@ -27,11 +27,6 @@ #include <asm/mach/arch.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) { return memblock_virt_alloc(size, align); diff --git a/arch/arm/kernel/setup.c b/arch/arm/kernel/setup.c index 50e198c1e9c8..6d78ba47ea5b 100644 --- a/arch/arm/kernel/setup.c +++ b/arch/arm/kernel/setup.c @@ -628,15 +628,8 @@ void __init dump_machine_table(void) int __init arm_add_memory(u64 start, u64 size) { - struct membank *bank = &meminfo.bank[meminfo.nr_banks]; 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. * Size is appropriately rounded down, start is rounded up. @@ -677,17 +670,17 @@ int __init arm_add_memory(u64 start, u64 size) aligned_start = PHYS_OFFSET; } - bank->start = aligned_start; - bank->size = size & ~(phys_addr_t)(PAGE_SIZE - 1); + start = aligned_start; + size = size & ~(phys_addr_t)(PAGE_SIZE - 1); /* * Check whether this memory region has non-zero size or * invalid node number. */ - if (bank->size == 0) + if (size == 0) return -EINVAL; - meminfo.nr_banks++; + memblock_add(start, size); return 0; } @@ -695,6 +688,7 @@ int __init arm_add_memory(u64 start, u64 size) * Pick out the memory size. We look for mem=size@start, * where start and size are "size[KkMm]" */ + static int __init early_mem(char *p) { static int usermem __initdata = 0; @@ -709,7 +703,8 @@ static int __init early_mem(char *p) */ if (usermem == 0) { usermem = 1; - meminfo.nr_banks = 0; + memblock_remove(memblock_start_of_DRAM(), + memblock_end_of_DRAM() - memblock_start_of_DRAM()); } start = PHYS_OFFSET; @@ -854,13 +849,6 @@ static void __init reserve_crashkernel(void) static inline void reserve_crashkernel(void) {} #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) { #ifdef CONFIG_ARM_VIRT_EXT @@ -903,12 +891,10 @@ void __init setup_arch(char **cmdline_p) 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())); setup_dma_zone(mdesc); sanity_check_meminfo(); - arm_memblock_init(&meminfo, mdesc); + arm_memblock_init(mdesc); paging_init(mdesc); request_standard_resources(mdesc); diff --git a/arch/arm/mach-clps711x/board-clep7312.c b/arch/arm/mach-clps711x/board-clep7312.c index 221b9de32dd6..94a7add88a3f 100644 --- a/arch/arm/mach-clps711x/board-clep7312.c +++ b/arch/arm/mach-clps711x/board-clep7312.c @@ -18,6 +18,7 @@ #include <linux/init.h> #include <linux/types.h> #include <linux/string.h> +#include <linux/memblock.h> #include <asm/setup.h> #include <asm/mach-types.h> @@ -26,11 +27,9 @@ #include "common.h" static void __init -fixup_clep7312(struct tag *tags, char **cmdline, struct meminfo *mi) +fixup_clep7312(struct tag *tags, char **cmdline) { - mi->nr_banks=1; - mi->bank[0].start = 0xc0000000; - mi->bank[0].size = 0x01000000; + memblock_add(0xc0000000, 0x01000000); } MACHINE_START(CLEP7212, "Cirrus Logic 7212/7312") diff --git a/arch/arm/mach-clps711x/board-edb7211.c b/arch/arm/mach-clps711x/board-edb7211.c index 077609841f14..f9828f89972a 100644 --- a/arch/arm/mach-clps711x/board-edb7211.c +++ b/arch/arm/mach-clps711x/board-edb7211.c @@ -16,6 +16,7 @@ #include <linux/interrupt.h> #include <linux/backlight.h> #include <linux/platform_device.h> +#include <linux/memblock.h> #include <linux/mtd/physmap.h> #include <linux/mtd/partitions.h> @@ -133,7 +134,7 @@ static void __init edb7211_reserve(void) } 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 @@ -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 * not using that information yet. */ - mi->bank[0].start = 0xc0000000; - mi->bank[0].size = SZ_8M; - mi->bank[1].start = 0xc1000000; - mi->bank[1].size = SZ_8M; - mi->nr_banks = 2; + memblock_add(0xc0000000, SZ_8M); + memblock_add(0xc1000000, SZ_8M); } static void __init edb7211_init(void) diff --git a/arch/arm/mach-clps711x/board-p720t.c b/arch/arm/mach-clps711x/board-p720t.c index 67b733744ed7..0cf0e51e6546 100644 --- a/arch/arm/mach-clps711x/board-p720t.c +++ b/arch/arm/mach-clps711x/board-p720t.c @@ -295,7 +295,7 @@ static struct generic_bl_info p720t_lcd_backlight_pdata = { }; 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). diff --git a/arch/arm/mach-footbridge/cats-hw.c b/arch/arm/mach-footbridge/cats-hw.c index da0415094856..8f05489671b7 100644 --- a/arch/arm/mach-footbridge/cats-hw.c +++ b/arch/arm/mach-footbridge/cats-hw.c @@ -76,7 +76,7 @@ __initcall(cats_hw_init); * hard reboots fail on early boards. */ 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) screen_info.orig_video_lines = 25; diff --git a/arch/arm/mach-footbridge/netwinder-hw.c b/arch/arm/mach-footbridge/netwinder-hw.c index eb1fa5c84723..cdee08c6d239 100644 --- a/arch/arm/mach-footbridge/netwinder-hw.c +++ b/arch/arm/mach-footbridge/netwinder-hw.c @@ -620,7 +620,7 @@ __initcall(nw_hw_init); * the parameter page. */ static void __init -fixup_netwinder(struct tag *tags, char **cmdline, struct meminfo *mi) +fixup_netwinder(struct tag *tags, char **cmdline) { #ifdef CONFIG_ISAPNP extern int isapnp_disable; diff --git a/arch/arm/mach-msm/board-halibut.c b/arch/arm/mach-msm/board-halibut.c index a77529887cbc..61bfe584a9d7 100644 --- a/arch/arm/mach-msm/board-halibut.c +++ b/arch/arm/mach-msm/board-halibut.c @@ -83,11 +83,6 @@ static void __init halibut_init(void) 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) { msm_map_common_io(); @@ -100,7 +95,6 @@ static void __init halibut_init_late(void) MACHINE_START(HALIBUT, "Halibut Board (QCT SURF7200A)") .atag_offset = 0x100, - .fixup = halibut_fixup, .map_io = halibut_map_io, .init_early = halibut_init_early, .init_irq = halibut_init_irq, diff --git a/arch/arm/mach-msm/board-mahimahi.c b/arch/arm/mach-msm/board-mahimahi.c index 7d9981cb400e..873c3ca3cd7e 100644 --- a/arch/arm/mach-msm/board-mahimahi.c +++ b/arch/arm/mach-msm/board-mahimahi.c @@ -22,6 +22,7 @@ #include <linux/io.h> #include <linux/kernel.h> #include <linux/platform_device.h> +#include <linux/memblock.h> #include <asm/mach-types.h> #include <asm/mach/arch.h> @@ -52,16 +53,10 @@ static void __init mahimahi_init(void) platform_add_devices(devices, ARRAY_SIZE(devices)); } -static void __init mahimahi_fixup(struct tag *tags, char **cmdline, - struct meminfo *mi) +static void __init mahimahi_fixup(struct tag *tags, char **cmdline) { - mi->nr_banks = 2; - mi->bank[0].start = PHYS_OFFSET; - 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; + memblock_add(PHYS_OFFSET, 219*SZ_1M); + memblock_add(MSM_HIGHMEM_BASE, MSM_HIGHMEM_SIZE); } static void __init mahimahi_map_io(void) diff --git a/arch/arm/mach-msm/board-msm7x30.c b/arch/arm/mach-msm/board-msm7x30.c index 46de789ad3ae..b621b23a5ecc 100644 --- a/arch/arm/mach-msm/board-msm7x30.c +++ b/arch/arm/mach-msm/board-msm7x30.c @@ -40,8 +40,7 @@ #include "proc_comm.h" #include "common.h" -static void __init msm7x30_fixup(struct tag *tag, char **cmdline, - struct meminfo *mi) +static void __init msm7x30_fixup(struct tag *tag, char **cmdline) { for (; tag->hdr.size; tag = tag_next(tag)) if (tag->hdr.tag == ATAG_MEM && tag->u.mem.start == 0x200000) { diff --git a/arch/arm/mach-msm/board-sapphire.c b/arch/arm/mach-msm/board-sapphire.c index 327605174d63..e50967926dcd 100644 --- a/arch/arm/mach-msm/board-sapphire.c +++ b/arch/arm/mach-msm/board-sapphire.c @@ -35,6 +35,7 @@ #include <linux/mtd/nand.h> #include <linux/mtd/partitions.h> +#include <linux/memblock.h> #include "gpio_chip.h" #include "board-sapphire.h" @@ -74,22 +75,18 @@ static struct map_desc sapphire_io_desc[] __initdata = { } }; -static void __init sapphire_fixup(struct tag *tags, char **cmdline, - struct meminfo *mi) +static void __init sapphire_fixup(struct tag *tags, char **cmdline) { 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) { - mi->bank[0].size = (84*1024*1024); + memblock_add(PHYS_OFFSET, 84*SZ_1M); } else if (smi_sz == 64) { - mi->bank[0].size = (101*1024*1024); + memblock_add(PHYS_OFFSET, 101*SZ_1M); } else { + memblock_add(PHYS_OFFSET, 101*SZ_1M); /* Give a default value when not get smi size */ smi_sz = 64; - mi->bank[0].size = (101*1024*1024); } } diff --git a/arch/arm/mach-msm/board-trout.c b/arch/arm/mach-msm/board-trout.c index 015d544aa017..58826cfab6b0 100644 --- a/arch/arm/mach-msm/board-trout.c +++ b/arch/arm/mach-msm/board-trout.c @@ -19,6 +19,7 @@ #include <linux/init.h> #include <linux/platform_device.h> #include <linux/clkdev.h> +#include <linux/memblock.h> #include <asm/system_info.h> #include <asm/mach-types.h> @@ -55,12 +56,9 @@ static void __init trout_init_irq(void) msm_init_irq(); } -static void __init trout_fixup(struct tag *tags, char **cmdline, - struct meminfo *mi) +static void __init trout_fixup(struct tag *tags, char **cmdline) { - mi->nr_banks = 1; - mi->bank[0].start = PHYS_OFFSET; - mi->bank[0].size = (101*1024*1024); + memblock_add(PHYS_OFFSET, 101*SZ_1M); } static void __init trout_init(void) diff --git a/arch/arm/mach-orion5x/common.c b/arch/arm/mach-orion5x/common.c index 3f1de1111e0f..6bbb7b55c6d1 100644 --- a/arch/arm/mach-orion5x/common.c +++ b/arch/arm/mach-orion5x/common.c @@ -365,8 +365,7 @@ void orion5x_restart(enum reboot_mode mode, const char *cmd) * Many orion-based systems have buggy bootloader implementations. * This is a common fixup for bogus memory tags. */ -void __init tag_fixup_mem32(struct tag *t, char **from, - struct meminfo *meminfo) +void __init tag_fixup_mem32(struct tag *t, char **from) { for (; t->hdr.size; t = tag_next(t)) if (t->hdr.tag == ATAG_MEM && diff --git a/arch/arm/mach-orion5x/common.h b/arch/arm/mach-orion5x/common.h index f565f9944af2..175ec4ca8df6 100644 --- a/arch/arm/mach-orion5x/common.h +++ b/arch/arm/mach-orion5x/common.h @@ -71,9 +71,8 @@ void edmini_v2_init(void); static inline void edmini_v2_init(void) {}; #endif -struct meminfo; 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 diff --git a/arch/arm/mach-pxa/cm-x300.c b/arch/arm/mach-pxa/cm-x300.c index 584439bfa59f..4d3588d26c2a 100644 --- a/arch/arm/mach-pxa/cm-x300.c +++ b/arch/arm/mach-pxa/cm-x300.c @@ -837,8 +837,7 @@ static void __init cm_x300_init(void) cm_x300_init_bl(); } -static void __init cm_x300_fixup(struct tag *tags, char **cmdline, - struct meminfo *mi) +static void __init cm_x300_fixup(struct tag *tags, char **cmdline) { /* Make sure that mi->bank[0].start = PHYS_ADDR */ for (; tags->hdr.size; tags = tag_next(tags)) diff --git a/arch/arm/mach-pxa/corgi.c b/arch/arm/mach-pxa/corgi.c index 57d60542f982..91dd1c7cdbcd 100644 --- a/arch/arm/mach-pxa/corgi.c +++ b/arch/arm/mach-pxa/corgi.c @@ -34,6 +34,7 @@ #include <linux/input/matrix_keypad.h> #include <linux/gpio_keys.h> #include <linux/module.h> +#include <linux/memblock.h> #include <video/w100fb.h> #include <asm/setup.h> @@ -753,16 +754,13 @@ static void __init corgi_init(void) platform_add_devices(devices, ARRAY_SIZE(devices)); } -static void __init fixup_corgi(struct tag *tags, char **cmdline, - struct meminfo *mi) +static void __init fixup_corgi(struct tag *tags, char **cmdline) { sharpsl_save_param(); - mi->nr_banks=1; - mi->bank[0].start = 0xa0000000; if (machine_is_corgi()) - mi->bank[0].size = (32*1024*1024); + memblock_add(0xa0000000, SZ_32M); else - mi->bank[0].size = (64*1024*1024); + memblock_add(0xa0000000, SZ_64M); } #ifdef CONFIG_MACH_CORGI diff --git a/arch/arm/mach-pxa/eseries.c b/arch/arm/mach-pxa/eseries.c index 8280ebcaab9f..cfb864173ce3 100644 --- a/arch/arm/mach-pxa/eseries.c +++ b/arch/arm/mach-pxa/eseries.c @@ -21,6 +21,7 @@ #include <linux/mtd/nand.h> #include <linux/mtd/partitions.h> #include <linux/usb/gpio_vbus.h> +#include <linux/memblock.h> #include <video/w100fb.h> @@ -41,14 +42,12 @@ #include "clock.h" /* 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()) - mi->bank[0].size = (128*1024*1024); + memblock_add(0xa0000000, SZ_128M); else - mi->bank[0].size = (64*1024*1024); + memblock_add(0xa0000000, SZ_64M); } struct gpio_vbus_mach_info e7xx_udc_info = { diff --git a/arch/arm/mach-pxa/poodle.c b/arch/arm/mach-pxa/poodle.c index aedf053a1de5..131991629116 100644 --- a/arch/arm/mach-pxa/poodle.c +++ b/arch/arm/mach-pxa/poodle.c @@ -29,6 +29,7 @@ #include <linux/spi/ads7846.h> #include <linux/spi/pxa2xx_spi.h> #include <linux/mtd/sharpsl.h> +#include <linux/memblock.h> #include <mach/hardware.h> #include <asm/mach-types.h> @@ -456,13 +457,10 @@ static void __init poodle_init(void) poodle_init_spi(); } -static void __init fixup_poodle(struct tag *tags, char **cmdline, - struct meminfo *mi) +static void __init fixup_poodle(struct tag *tags, char **cmdline) { sharpsl_save_param(); - mi->nr_banks=1; - mi->bank[0].start = 0xa0000000; - mi->bank[0].size = (32*1024*1024); + memblock_add(0xa0000000, SZ_32M); } MACHINE_START(POODLE, "SHARP Poodle") diff --git a/arch/arm/mach-pxa/spitz.c b/arch/arm/mach-pxa/spitz.c index 0b11c1af51c4..840c3a48e720 100644 --- a/arch/arm/mach-pxa/spitz.c +++ b/arch/arm/mach-pxa/spitz.c @@ -32,6 +32,7 @@ #include <linux/io.h> #include <linux/module.h> #include <linux/reboot.h> +#include <linux/memblock.h> #include <asm/setup.h> #include <asm/mach-types.h> @@ -971,13 +972,10 @@ static void __init spitz_init(void) spitz_i2c_init(); } -static void __init spitz_fixup(struct tag *tags, char **cmdline, - struct meminfo *mi) +static void __init spitz_fixup(struct tag *tags, char **cmdline) { sharpsl_save_param(); - mi->nr_banks = 1; - mi->bank[0].start = 0xa0000000; - mi->bank[0].size = (64*1024*1024); + memblock_add(0xa0000000, SZ_64M); } #ifdef CONFIG_MACH_SPITZ diff --git a/arch/arm/mach-pxa/tosa.c b/arch/arm/mach-pxa/tosa.c index ef5557b807ed..c158a6e3e0aa 100644 --- a/arch/arm/mach-pxa/tosa.c +++ b/arch/arm/mach-pxa/tosa.c @@ -37,6 +37,7 @@ #include <linux/i2c/pxa-i2c.h> #include <linux/usb/gpio_vbus.h> #include <linux/reboot.h> +#include <linux/memblock.h> #include <asm/setup.h> #include <asm/mach-types.h> @@ -960,13 +961,10 @@ static void __init tosa_init(void) platform_add_devices(devices, ARRAY_SIZE(devices)); } -static void __init fixup_tosa(struct tag *tags, char **cmdline, - struct meminfo *mi) +static void __init fixup_tosa(struct tag *tags, char **cmdline) { sharpsl_save_param(); - mi->nr_banks=1; - mi->bank[0].start = 0xa0000000; - mi->bank[0].size = (64*1024*1024); + memblock_add(0xa0000000, SZ_64M); } MACHINE_START(TOSA, "SHARP Tosa") diff --git a/arch/arm/mach-realview/core.c b/arch/arm/mach-realview/core.c index 1d5ee5c9a1dc..c2fae3a5aad8 100644 --- a/arch/arm/mach-realview/core.c +++ b/arch/arm/mach-realview/core.c @@ -31,6 +31,7 @@ #include <linux/amba/mmci.h> #include <linux/gfp.h> #include <linux/mtd/physmap.h> +#include <linux/memblock.h> #include <mach/hardware.h> #include <asm/irq.h> @@ -370,19 +371,15 @@ void __init realview_timer_init(unsigned int timer_irq) /* * 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. * Half of this is mirrored at 0. */ #ifdef CONFIG_REALVIEW_HIGH_PHYS_OFFSET - meminfo->bank[0].start = 0x70000000; - meminfo->bank[0].size = SZ_512M; - meminfo->nr_banks = 1; + memblock_add(0x70000000, SZ_512M); #else - meminfo->bank[0].start = 0; - meminfo->bank[0].size = SZ_256M; - meminfo->nr_banks = 1; + memblock_add(0, SZ_256M); #endif } diff --git a/arch/arm/mach-realview/core.h b/arch/arm/mach-realview/core.h index 602ca5ec52c5..844946da3c66 100644 --- a/arch/arm/mach-realview/core.h +++ b/arch/arm/mach-realview/core.h @@ -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_usb_register(struct resource *res); extern void realview_init_early(void); -extern void realview_fixup(struct tag *tags, char **from, - struct meminfo *meminfo); +extern void realview_fixup(struct tag *tags, char **from); extern struct smp_operations realview_smp_ops; extern void realview_cpu_die(unsigned int cpu); diff --git a/arch/arm/mach-realview/realview_pb1176.c b/arch/arm/mach-realview/realview_pb1176.c index c5eade76461b..6abf6a037b9e 100644 --- a/arch/arm/mach-realview/realview_pb1176.c +++ b/arch/arm/mach-realview/realview_pb1176.c @@ -32,6 +32,7 @@ #include <linux/irqchip/arm-gic.h> #include <linux/platform_data/clk-realview.h> #include <linux/reboot.h> +#include <linux/memblock.h> #include <mach/hardware.h> #include <asm/irq.h> @@ -339,15 +340,12 @@ static void realview_pb1176_restart(enum reboot_mode mode, const char *cmd) dsb(); } -static void realview_pb1176_fixup(struct tag *tags, char **from, - struct meminfo *meminfo) +static void realview_pb1176_fixup(struct tag *tags, char **from) { /* * RealView PB1176 only has 128MB of RAM mapped at 0. */ - meminfo->bank[0].start = 0; - meminfo->bank[0].size = SZ_128M; - meminfo->nr_banks = 1; + memblock_add(0, SZ_128M); } static void __init realview_pb1176_init(void) diff --git a/arch/arm/mach-realview/realview_pbx.c b/arch/arm/mach-realview/realview_pbx.c index 9d75493e3f0c..60d322ad9db4 100644 --- a/arch/arm/mach-realview/realview_pbx.c +++ b/arch/arm/mach-realview/realview_pbx.c @@ -29,6 +29,7 @@ #include <linux/irqchip/arm-gic.h> #include <linux/platform_data/clk-realview.h> #include <linux/reboot.h> +#include <linux/memblock.h> #include <asm/irq.h> #include <asm/mach-types.h> @@ -325,23 +326,19 @@ static void __init realview_pbx_timer_init(void) realview_pbx_twd_init(); } -static void realview_pbx_fixup(struct tag *tags, char **from, - struct meminfo *meminfo) +static void realview_pbx_fixup(struct tag *tags, char **from) { #ifdef CONFIG_SPARSEMEM /* * Memory configuration with SPARSEMEM enabled on RealView PBX (see * asm/mach/memory.h for more information). */ - meminfo->bank[0].start = 0; - meminfo->bank[0].size = SZ_256M; - meminfo->bank[1].start = 0x20000000; - meminfo->bank[1].size = SZ_512M; - meminfo->bank[2].start = 0x80000000; - meminfo->bank[2].size = SZ_256M; - meminfo->nr_banks = 3; + + memblock_add(0, SZ_256M); + memblock_add(0x20000000, SZ_512M); + memblock_add(0x80000000, SZ_256M); #else - realview_fixup(tags, from, meminfo); + realview_fixup(tags, from); #endif } diff --git a/arch/arm/mach-s3c24xx/mach-smdk2413.c b/arch/arm/mach-s3c24xx/mach-smdk2413.c index 233fe52d2015..a03c855ee854 100644 --- a/arch/arm/mach-s3c24xx/mach-smdk2413.c +++ b/arch/arm/mach-s3c24xx/mach-smdk2413.c @@ -22,6 +22,7 @@ #include <linux/serial_s3c.h> #include <linux/platform_device.h> #include <linux/io.h> +#include <linux/memblock.h> #include <asm/mach/arch.h> #include <asm/mach/map.h> @@ -93,13 +94,10 @@ static struct platform_device *smdk2413_devices[] __initdata = { &s3c2412_device_dma, }; -static void __init smdk2413_fixup(struct tag *tags, char **cmdline, - struct meminfo *mi) +static void __init smdk2413_fixup(struct tag *tags, char **cmdline) { if (tags != phys_to_virt(S3C2410_SDRAM_PA + 0x100)) { - mi->nr_banks=1; - mi->bank[0].start = 0x30000000; - mi->bank[0].size = SZ_64M; + memblock_add(0x30000000, SZ_64M); } } diff --git a/arch/arm/mach-s3c24xx/mach-vstms.c b/arch/arm/mach-s3c24xx/mach-vstms.c index 40868c0e0a68..a79af7843aed 100644 --- a/arch/arm/mach-s3c24xx/mach-vstms.c +++ b/arch/arm/mach-s3c24xx/mach-vstms.c @@ -23,6 +23,7 @@ #include <linux/mtd/nand.h> #include <linux/mtd/nand_ecc.h> #include <linux/mtd/partitions.h> +#include <linux/memblock.h> #include <asm/mach/arch.h> #include <asm/mach/map.h> @@ -129,13 +130,10 @@ static struct platform_device *vstms_devices[] __initdata = { &s3c2412_device_dma, }; -static void __init vstms_fixup(struct tag *tags, char **cmdline, - struct meminfo *mi) +static void __init vstms_fixup(struct tag *tags, char **cmdline) { if (tags != phys_to_virt(S3C2410_SDRAM_PA + 0x100)) { - mi->nr_banks=1; - mi->bank[0].start = 0x30000000; - mi->bank[0].size = SZ_64M; + memblock_add(0x30000000, SZ_64M); } } diff --git a/arch/arm/mach-sa1100/assabet.c b/arch/arm/mach-sa1100/assabet.c index 8443a27bca2f..7dd894ece9ae 100644 --- a/arch/arm/mach-sa1100/assabet.c +++ b/arch/arm/mach-sa1100/assabet.c @@ -531,7 +531,7 @@ static void __init get_assabet_scr(void) } 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() */ map_sa1100_gpio_regs(); diff --git a/arch/arm/mm/init.c b/arch/arm/mm/init.c index 2a77ba8796ae..c8ab21dc2178 100644 --- a/arch/arm/mm/init.c +++ b/arch/arm/mm/init.c @@ -81,24 +81,21 @@ __tagtable(ATAG_INITRD2, parse_tag_initrd2); * initialization functions, as well as show_mem() for the skipping * of holes in the memory map. It is populated by arm_add_memory(). */ -struct meminfo meminfo; - void show_mem(unsigned int filter) { int free = 0, total = 0, reserved = 0; - int shared = 0, cached = 0, slab = 0, i; - struct meminfo * mi = &meminfo; + int shared = 0, cached = 0, slab = 0; + struct memblock_region *reg; printk("Mem-info:\n"); show_free_areas(filter); - for_each_bank (i, mi) { - struct membank *bank = &mi->bank[i]; + for_each_memblock (memory, reg) { unsigned int pfn1, pfn2; struct page *page, *end; - pfn1 = bank_pfn_start(bank); - pfn2 = bank_pfn_end(bank); + pfn1 = memblock_region_memory_base_pfn(reg); + pfn2 = memblock_region_memory_end_pfn(reg); page = pfn_to_page(pfn1); end = pfn_to_page(pfn2 - 1) + 1; @@ -115,8 +112,9 @@ void show_mem(unsigned int filter) free++; else shared += page_count(page) - 1; - page++; - } while (page < end); + pfn1++; + page = pfn_to_page(pfn1); + } while (pfn1 < pfn2); } printk("%d pages of RAM\n", total); @@ -130,16 +128,9 @@ void show_mem(unsigned int filter) static void __init find_limits(unsigned long *min, unsigned long *max_low, unsigned long *max_high) { - struct meminfo *mi = &meminfo; - int i; - - /* 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]); + *max_low = PFN_DOWN(memblock_get_current_limit()); + *min = PFN_UP(memblock_start_of_DRAM()); + *max_high = PFN_DOWN(memblock_end_of_DRAM()); } #ifdef CONFIG_ZONE_DMA @@ -274,14 +265,8 @@ phys_addr_t __init arm_memblock_steal(phys_addr_t size, phys_addr_t align) return phys; } -void __init arm_memblock_init(struct meminfo *mi, - const struct machine_desc *mdesc) +void __init arm_memblock_init(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. */ #ifdef CONFIG_XIP_KERNEL memblock_reserve(__pa(_sdata), _end - _sdata); @@ -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. */ -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 int i; + unsigned long start, prev_end = 0; + struct memblock_region *reg; /* * This relies on each bank being in address order. * The banks are sorted previously in bootmem_init(). */ - for_each_bank(i, mi) { - struct membank *bank = &mi->bank[i]; - - bank_start = bank_pfn_start(bank); + for_each_memblock(memory, reg) { + start = memblock_region_memory_base_pfn(reg); #ifdef CONFIG_SPARSEMEM /* * Take care not to free memmap entries that don't exist * due to SPARSEMEM sections which aren't present. */ - bank_start = min(bank_start, - ALIGN(prev_bank_end, PAGES_PER_SECTION)); + start = min(start, + ALIGN(prev_end, PAGES_PER_SECTION)); #else /* * Align down here since the VM subsystem insists that the * memmap entries are valid from the bank start aligned to * MAX_ORDER_NR_PAGES. */ - bank_start = round_down(bank_start, MAX_ORDER_NR_PAGES); + start = round_down(start, MAX_ORDER_NR_PAGES); #endif /* * If we had a previous bank, and there is a space * between the current bank and the previous, free it. */ - if (prev_bank_end && prev_bank_end < bank_start) - free_memmap(prev_bank_end, bank_start); + if (prev_end && prev_end < start) + free_memmap(prev_end, start); /* * Align up here since the VM subsystem insists that the * memmap entries are valid from the bank end aligned to * 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 - if (!IS_ALIGNED(prev_bank_end, PAGES_PER_SECTION)) - free_memmap(prev_bank_end, - ALIGN(prev_bank_end, PAGES_PER_SECTION)); + if (!IS_ALIGNED(prev_end, PAGES_PER_SECTION)) + free_memmap(prev_end, + ALIGN(prev_end, PAGES_PER_SECTION)); #endif } @@ -536,7 +520,7 @@ void __init mem_init(void) set_max_mapnr(pfn_to_page(max_pfn) - mem_map); /* this will put all unused low memory onto the freelists */ - free_unused_memmap(&meminfo); + free_unused_memmap(); free_all_bootmem(); #ifdef CONFIG_SA1111 diff --git a/arch/arm/mm/mmu.c b/arch/arm/mm/mmu.c index a991ce2f18d4..82ea2b3fb9b5 100644 --- a/arch/arm/mm/mmu.c +++ b/arch/arm/mm/mmu.c @@ -1062,74 +1062,47 @@ phys_addr_t arm_lowmem_limit __initdata = 0; void __init sanity_check_meminfo(void) { phys_addr_t memblock_limit = 0; - int i, j, highmem = 0; + int highmem = 0; phys_addr_t vmalloc_limit = __pa(vmalloc_min - 1) + 1; + struct memblock_region *reg; - for (i = 0, j = 0; i < meminfo.nr_banks; i++) { - struct membank *bank = &meminfo.bank[j]; - phys_addr_t size_limit; - - *bank = meminfo.bank[i]; - size_limit = bank->size; + for_each_memblock(memory, reg) { + phys_addr_t block_start = reg->base; + phys_addr_t block_end = reg->base + reg->size; + phys_addr_t size_limit = reg->size; - if (bank->start >= vmalloc_limit) + if (reg->base >= vmalloc_limit) highmem = 1; else - size_limit = vmalloc_limit - bank->start; + size_limit = vmalloc_limit - reg->base; - bank->highmem = highmem; -#ifdef CONFIG_HIGHMEM - /* - * 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++; + if (!IS_ENABLED(CONFIG_HIGHMEM) || cache_is_vipt_aliasing()) { + + if (highmem) { + pr_notice("Ignoring RAM at %pa-%pa (!CONFIG_HIGHMEM)\n", + &block_start, &block_end); + memblock_remove(reg->base, reg->size); + continue; } - bank->size = size_limit; - } -#else - /* - * Highmem banks not allowed with !CONFIG_HIGHMEM. - */ - if (highmem) { - printk(KERN_NOTICE "Ignoring RAM at %.8llx-%.8llx " - "(!CONFIG_HIGHMEM).\n", - (unsigned long long)bank->start, - (unsigned long long)bank->start + bank->size - 1); - continue; - } - /* - * Check whether this memory bank would partially overlap - * the vmalloc area. - */ - if (bank->size > size_limit) { - printk(KERN_NOTICE "Truncating RAM at %.8llx-%.8llx " - "to -%.8llx (vmalloc region overlap).\n", - (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; + if (reg->size > size_limit) { + phys_addr_t overlap_size = reg->size - size_limit; + + pr_notice("Truncating RAM at %pa-%pa to -%pa", + &block_start, &block_end, &vmalloc_limit); + memblock_remove(vmalloc_limit, overlap_size); + block_end = vmalloc_limit; + } } -#endif - if (!bank->highmem) { - phys_addr_t bank_end = bank->start + bank->size; - if (bank_end > arm_lowmem_limit) - arm_lowmem_limit = bank_end; + if (!highmem) { + 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 @@ -1145,35 +1118,15 @@ void __init sanity_check_meminfo(void) * occurs before any free memory is mapped. */ if (!memblock_limit) { - if (!IS_ALIGNED(bank->start, SECTION_SIZE)) - memblock_limit = bank->start; - else if (!IS_ALIGNED(bank_end, SECTION_SIZE)) - memblock_limit = bank_end; + if (!IS_ALIGNED(block_start, SECTION_SIZE)) + memblock_limit = block_start; + else if (!IS_ALIGNED(block_end, SECTION_SIZE)) + 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; /* diff --git a/arch/arm/mm/nommu.c b/arch/arm/mm/nommu.c index 55764a7ef1f0..da1874f9f8cf 100644 --- a/arch/arm/mm/nommu.c +++ b/arch/arm/mm/nommu.c @@ -88,30 +88,35 @@ static unsigned long irbar_read(void) void __init sanity_check_meminfo_mpu(void) { int i; - struct membank *bank = meminfo.bank; phys_addr_t phys_offset = PHYS_OFFSET; phys_addr_t aligned_region_size, specified_mem_size, rounded_mem_size; - - /* Initially only use memory continuous from PHYS_OFFSET */ - if (bank_phys_start(&bank[0]) != phys_offset) - panic("First memory bank must be contiguous from PHYS_OFFSET"); - - /* Banks have already been sorted by start address */ - for (i = 1; i < meminfo.nr_banks; i++) { - if (bank[i].start <= bank_phys_end(&bank[0]) && - bank_phys_end(&bank[i]) > bank_phys_end(&bank[0])) { - bank[0].size = bank_phys_end(&bank[i]) - bank[0].start; + struct memblock_region *reg; + bool first = true; + phys_addr_t mem_start; + phys_addr_t mem_end; + + for_each_memblock(memory, reg) { + 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"); + + mem_start = reg->base; + mem_end = reg->base + reg->size; + specified_mem_size = reg->size; + first = false; } else { - pr_notice("Ignoring RAM after 0x%.8lx. " - "First non-contiguous (ignored) bank start: 0x%.8lx\n", - (unsigned long)bank_phys_end(&bank[0]), - (unsigned long)bank_phys_start(&bank[i])); - break; + /* + * memblock auto merges contiguous blocks, remove + * all blocks afterwards + */ + pr_notice("Ignoring RAM after %pa, memory at %pa ignored\n", + &mem_start, ®->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 @@ -128,23 +133,24 @@ void __init sanity_check_meminfo_mpu(void) */ aligned_region_size = (phys_offset - 1) ^ (phys_offset); /* 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 */ aligned_region_size = aligned_region_size < rounded_mem_size ? aligned_region_size + 1 : rounded_mem_size + 1; - if (aligned_region_size != specified_mem_size) - pr_warn("Truncating memory from 0x%.8lx to 0x%.8lx (MPU region constraints)", - (unsigned long)specified_mem_size, - (unsigned long)aligned_region_size); + if (aligned_region_size != specified_mem_size) { + pr_warn("Truncating memory from %pa to %pa (MPU region constraints)", + &specified_mem_size, &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 0x%.8lx size 0x%.8lx (end 0x%.8lx))\n", - (unsigned long)phys_offset, - (unsigned long)aligned_region_size, - (unsigned long)bank_phys_end(&bank[0])); + pr_debug("MPU Region from %pa size %pa (end %pa))\n", + &phys_offset, &aligned_region_size, &mem_end); } @@ -292,7 +298,7 @@ void __init sanity_check_meminfo(void) { phys_addr_t end; 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; } |