diff options
Diffstat (limited to 'arch/microblaze/mm/init.c')
-rw-r--r-- | arch/microblaze/mm/init.c | 86 |
1 files changed, 50 insertions, 36 deletions
diff --git a/arch/microblaze/mm/init.c b/arch/microblaze/mm/init.c index a57cedf..db59349 100644 --- a/arch/microblaze/mm/init.c +++ b/arch/microblaze/mm/init.c @@ -10,11 +10,12 @@ #include <linux/bootmem.h> #include <linux/init.h> #include <linux/kernel.h> -#include <linux/lmb.h> +#include <linux/memblock.h> #include <linux/mm.h> /* mem_init */ #include <linux/initrd.h> #include <linux/pagemap.h> #include <linux/pfn.h> +#include <linux/slab.h> #include <linux/swap.h> #include <asm/page.h> @@ -23,6 +24,9 @@ #include <asm/sections.h> #include <asm/tlb.h> +/* Use for MMU and noMMU because of PCI generic code */ +int mem_init_done; + #ifndef CONFIG_MMU unsigned int __page_offset; EXPORT_SYMBOL(__page_offset); @@ -30,7 +34,6 @@ EXPORT_SYMBOL(__page_offset); #else DEFINE_PER_CPU(struct mmu_gather, mmu_gathers); -int mem_init_done; static int init_bootmem_done; #endif /* CONFIG_MMU */ @@ -44,6 +47,7 @@ unsigned long memory_start; EXPORT_SYMBOL(memory_start); unsigned long memory_end; /* due to mm/nommu.c */ unsigned long memory_size; +EXPORT_SYMBOL(memory_size); /* * paging_init() sets up the page tables - in fact we've already done this. @@ -72,10 +76,10 @@ void __init setup_memory(void) u32 kernel_align_start, kernel_align_size; /* Find main memory where is the kernel */ - for (i = 0; i < lmb.memory.cnt; i++) { - memory_start = (u32) lmb.memory.region[i].base; - memory_end = (u32) lmb.memory.region[i].base - + (u32) lmb.memory.region[i].size; + for (i = 0; i < memblock.memory.cnt; i++) { + memory_start = (u32) memblock.memory.region[i].base; + memory_end = (u32) memblock.memory.region[i].base + + (u32) memblock.memory.region[i].size; if ((memory_start <= (u32)_text) && ((u32)_text <= memory_end)) { memory_size = memory_end - memory_start; @@ -96,7 +100,7 @@ void __init setup_memory(void) kernel_align_start = PAGE_DOWN((u32)_text); /* ALIGN can be remove because _end in vmlinux.lds.S is align */ kernel_align_size = PAGE_UP((u32)klimit) - kernel_align_start; - lmb_reserve(kernel_align_start, kernel_align_size); + memblock_reserve(kernel_align_start, kernel_align_size); printk(KERN_INFO "%s: kernel addr=0x%08x-0x%08x size=0x%08x\n", __func__, kernel_align_start, kernel_align_start + kernel_align_size, kernel_align_size); @@ -137,18 +141,18 @@ void __init setup_memory(void) map_size = init_bootmem_node(&contig_page_data, PFN_UP(TOPHYS((u32)klimit)), min_low_pfn, max_low_pfn); #endif - lmb_reserve(PFN_UP(TOPHYS((u32)klimit)) << PAGE_SHIFT, map_size); + memblock_reserve(PFN_UP(TOPHYS((u32)klimit)) << PAGE_SHIFT, map_size); /* free bootmem is whole main memory */ free_bootmem(memory_start, memory_size); /* reserve allocate blocks */ - for (i = 0; i < lmb.reserved.cnt; i++) { + for (i = 0; i < memblock.reserved.cnt; i++) { pr_debug("reserved %d - 0x%08x-0x%08x\n", i, - (u32) lmb.reserved.region[i].base, - (u32) lmb_size_bytes(&lmb.reserved, i)); - reserve_bootmem(lmb.reserved.region[i].base, - lmb_size_bytes(&lmb.reserved, i) - 1, BOOTMEM_DEFAULT); + (u32) memblock.reserved.region[i].base, + (u32) memblock_size_bytes(&memblock.reserved, i)); + reserve_bootmem(memblock.reserved.region[i].base, + memblock_size_bytes(&memblock.reserved, i) - 1, BOOTMEM_DEFAULT); } #ifdef CONFIG_MMU init_bootmem_done = 1; @@ -163,7 +167,6 @@ void free_init_pages(char *what, unsigned long begin, unsigned long end) for (addr = begin; addr < end; addr += PAGE_SIZE) { ClearPageReserved(virt_to_page(addr)); init_page_count(virt_to_page(addr)); - memset((void *)addr, 0xcc, PAGE_SIZE); free_page(addr); totalram_pages++; } @@ -193,12 +196,6 @@ void free_initmem(void) (unsigned long)(&__init_end)); } -/* FIXME from arch/powerpc/mm/mem.c*/ -void show_mem(void) -{ - printk(KERN_NOTICE "%s\n", __func__); -} - void __init mem_init(void) { high_memory = (void *)__va(memory_end); @@ -208,20 +205,14 @@ void __init mem_init(void) printk(KERN_INFO "Memory: %luk/%luk available\n", nr_free_pages() << (PAGE_SHIFT-10), num_physpages << (PAGE_SHIFT-10)); -#ifdef CONFIG_MMU mem_init_done = 1; -#endif } #ifndef CONFIG_MMU -/* Check against bounds of physical memory */ -int ___range_ok(unsigned long addr, unsigned long size) +int page_is_ram(unsigned long pfn) { - return ((addr < memory_start) || - ((addr + size) > memory_end)); + return __range_ok(pfn, 0); } -EXPORT_SYMBOL(___range_ok); - #else int page_is_ram(unsigned long pfn) { @@ -244,7 +235,7 @@ static void mm_cmdline_setup(void) if (maxmem && memory_size > maxmem) { memory_size = maxmem; memory_end = memory_start + memory_size; - lmb.memory.region[0].size = memory_size; + memblock.memory.region[0].size = memory_size; } } } @@ -282,19 +273,19 @@ asmlinkage void __init mmu_init(void) { unsigned int kstart, ksize; - if (!lmb.reserved.cnt) { + if (!memblock.reserved.cnt) { printk(KERN_EMERG "Error memory count\n"); machine_restart(NULL); } - if ((u32) lmb.memory.region[0].size < 0x1000000) { + if ((u32) memblock.memory.region[0].size < 0x1000000) { printk(KERN_EMERG "Memory must be greater than 16MB\n"); machine_restart(NULL); } /* Find main memory where the kernel is */ - memory_start = (u32) lmb.memory.region[0].base; - memory_end = (u32) lmb.memory.region[0].base + - (u32) lmb.memory.region[0].size; + memory_start = (u32) memblock.memory.region[0].base; + memory_end = (u32) memblock.memory.region[0].base + + (u32) memblock.memory.region[0].size; memory_size = memory_end - memory_start; mm_cmdline_setup(); /* FIXME parse args from command line - not used */ @@ -306,7 +297,7 @@ asmlinkage void __init mmu_init(void) kstart = __pa(CONFIG_KERNEL_START); /* kernel start */ /* kernel size */ ksize = PAGE_ALIGN(((u32)_end - (u32)CONFIG_KERNEL_START)); - lmb_reserve(kstart, ksize); + memblock_reserve(kstart, ksize); #if defined(CONFIG_BLK_DEV_INITRD) /* Remove the init RAM disk from the available memory. */ @@ -344,9 +335,32 @@ void __init *early_get_page(void) * Mem start + 32MB -> here is limit * because of mem mapping from head.S */ - p = __va(lmb_alloc_base(PAGE_SIZE, PAGE_SIZE, + p = __va(memblock_alloc_base(PAGE_SIZE, PAGE_SIZE, memory_start + 0x2000000)); } return p; } + #endif /* CONFIG_MMU */ + +void * __init_refok alloc_maybe_bootmem(size_t size, gfp_t mask) +{ + if (mem_init_done) + return kmalloc(size, mask); + else + return alloc_bootmem(size); +} + +void * __init_refok zalloc_maybe_bootmem(size_t size, gfp_t mask) +{ + void *p; + + if (mem_init_done) + p = kzalloc(size, mask); + else { + p = alloc_bootmem(size); + if (p) + memset(p, 0, size); + } + return p; +} |