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author | Srikant Patnaik | 2015-01-11 12:28:04 +0530 |
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committer | Srikant Patnaik | 2015-01-11 12:28:04 +0530 |
commit | 871480933a1c28f8a9fed4c4d34d06c439a7a422 (patch) | |
tree | 8718f573808810c2a1e8cb8fb6ac469093ca2784 /ANDROID_3.4.5/arch/powerpc/mm/init_32.c | |
parent | 9d40ac5867b9aefe0722bc1f110b965ff294d30d (diff) | |
download | FOSSEE-netbook-kernel-source-871480933a1c28f8a9fed4c4d34d06c439a7a422.tar.gz FOSSEE-netbook-kernel-source-871480933a1c28f8a9fed4c4d34d06c439a7a422.tar.bz2 FOSSEE-netbook-kernel-source-871480933a1c28f8a9fed4c4d34d06c439a7a422.zip |
Moved, renamed, and deleted files
The original directory structure was scattered and unorganized.
Changes are basically to make it look like kernel structure.
Diffstat (limited to 'ANDROID_3.4.5/arch/powerpc/mm/init_32.c')
-rw-r--r-- | ANDROID_3.4.5/arch/powerpc/mm/init_32.c | 219 |
1 files changed, 0 insertions, 219 deletions
diff --git a/ANDROID_3.4.5/arch/powerpc/mm/init_32.c b/ANDROID_3.4.5/arch/powerpc/mm/init_32.c deleted file mode 100644 index 01e2db97..00000000 --- a/ANDROID_3.4.5/arch/powerpc/mm/init_32.c +++ /dev/null @@ -1,219 +0,0 @@ -/* - * PowerPC version - * Copyright (C) 1995-1996 Gary Thomas (gdt@linuxppc.org) - * - * Modifications by Paul Mackerras (PowerMac) (paulus@cs.anu.edu.au) - * and Cort Dougan (PReP) (cort@cs.nmt.edu) - * Copyright (C) 1996 Paul Mackerras - * PPC44x/36-bit changes by Matt Porter (mporter@mvista.com) - * - * Derived from "arch/i386/mm/init.c" - * Copyright (C) 1991, 1992, 1993, 1994 Linus Torvalds - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * as published by the Free Software Foundation; either version - * 2 of the License, or (at your option) any later version. - * - */ - -#include <linux/module.h> -#include <linux/sched.h> -#include <linux/kernel.h> -#include <linux/errno.h> -#include <linux/string.h> -#include <linux/types.h> -#include <linux/mm.h> -#include <linux/stddef.h> -#include <linux/init.h> -#include <linux/bootmem.h> -#include <linux/highmem.h> -#include <linux/initrd.h> -#include <linux/pagemap.h> -#include <linux/memblock.h> -#include <linux/gfp.h> -#include <linux/slab.h> -#include <linux/hugetlb.h> - -#include <asm/pgalloc.h> -#include <asm/prom.h> -#include <asm/io.h> -#include <asm/pgtable.h> -#include <asm/mmu.h> -#include <asm/smp.h> -#include <asm/machdep.h> -#include <asm/btext.h> -#include <asm/tlb.h> -#include <asm/sections.h> -#include <asm/hugetlb.h> - -#include "mmu_decl.h" - -#if defined(CONFIG_KERNEL_START_BOOL) || defined(CONFIG_LOWMEM_SIZE_BOOL) -/* The amount of lowmem must be within 0xF0000000 - KERNELBASE. */ -#if (CONFIG_LOWMEM_SIZE > (0xF0000000 - PAGE_OFFSET)) -#error "You must adjust CONFIG_LOWMEM_SIZE or CONFIG_START_KERNEL" -#endif -#endif -#define MAX_LOW_MEM CONFIG_LOWMEM_SIZE - -phys_addr_t total_memory; -phys_addr_t total_lowmem; - -phys_addr_t memstart_addr = (phys_addr_t)~0ull; -EXPORT_SYMBOL(memstart_addr); -phys_addr_t kernstart_addr; -EXPORT_SYMBOL(kernstart_addr); - -#ifdef CONFIG_RELOCATABLE_PPC32 -/* Used in __va()/__pa() */ -long long virt_phys_offset; -EXPORT_SYMBOL(virt_phys_offset); -#endif - -phys_addr_t lowmem_end_addr; - -int boot_mapsize; -#ifdef CONFIG_PPC_PMAC -unsigned long agp_special_page; -EXPORT_SYMBOL(agp_special_page); -#endif - -void MMU_init(void); - -/* XXX should be in current.h -- paulus */ -extern struct task_struct *current_set[NR_CPUS]; - -/* - * this tells the system to map all of ram with the segregs - * (i.e. page tables) instead of the bats. - * -- Cort - */ -int __map_without_bats; -int __map_without_ltlbs; - -/* - * This tells the system to allow ioremapping memory marked as reserved. - */ -int __allow_ioremap_reserved; - -/* max amount of low RAM to map in */ -unsigned long __max_low_memory = MAX_LOW_MEM; - -/* - * Check for command-line options that affect what MMU_init will do. - */ -void MMU_setup(void) -{ - /* Check for nobats option (used in mapin_ram). */ - if (strstr(cmd_line, "nobats")) { - __map_without_bats = 1; - } - - if (strstr(cmd_line, "noltlbs")) { - __map_without_ltlbs = 1; - } -#ifdef CONFIG_DEBUG_PAGEALLOC - __map_without_bats = 1; - __map_without_ltlbs = 1; -#endif -} - -/* - * MMU_init sets up the basic memory mappings for the kernel, - * including both RAM and possibly some I/O regions, - * and sets up the page tables and the MMU hardware ready to go. - */ -void __init MMU_init(void) -{ - if (ppc_md.progress) - ppc_md.progress("MMU:enter", 0x111); - - /* parse args from command line */ - MMU_setup(); - - /* - * Reserve gigantic pages for hugetlb. This MUST occur before - * lowmem_end_addr is initialized below. - */ - reserve_hugetlb_gpages(); - - if (memblock.memory.cnt > 1) { -#ifndef CONFIG_WII - memblock_enforce_memory_limit(memblock.memory.regions[0].size); - printk(KERN_WARNING "Only using first contiguous memory region"); -#else - wii_memory_fixups(); -#endif - } - - total_lowmem = total_memory = memblock_end_of_DRAM() - memstart_addr; - lowmem_end_addr = memstart_addr + total_lowmem; - -#ifdef CONFIG_FSL_BOOKE - /* Freescale Book-E parts expect lowmem to be mapped by fixed TLB - * entries, so we need to adjust lowmem to match the amount we can map - * in the fixed entries */ - adjust_total_lowmem(); -#endif /* CONFIG_FSL_BOOKE */ - - if (total_lowmem > __max_low_memory) { - total_lowmem = __max_low_memory; - lowmem_end_addr = memstart_addr + total_lowmem; -#ifndef CONFIG_HIGHMEM - total_memory = total_lowmem; - memblock_enforce_memory_limit(total_lowmem); -#endif /* CONFIG_HIGHMEM */ - } - - /* Initialize the MMU hardware */ - if (ppc_md.progress) - ppc_md.progress("MMU:hw init", 0x300); - MMU_init_hw(); - - /* Map in all of RAM starting at KERNELBASE */ - if (ppc_md.progress) - ppc_md.progress("MMU:mapin", 0x301); - mapin_ram(); - - /* Initialize early top-down ioremap allocator */ - ioremap_bot = IOREMAP_TOP; - - /* Map in I/O resources */ - if (ppc_md.progress) - ppc_md.progress("MMU:setio", 0x302); - - if (ppc_md.progress) - ppc_md.progress("MMU:exit", 0x211); - - /* From now on, btext is no longer BAT mapped if it was at all */ -#ifdef CONFIG_BOOTX_TEXT - btext_unmap(); -#endif - - /* Shortly after that, the entire linear mapping will be available */ - memblock_set_current_limit(lowmem_end_addr); -} - -/* This is only called until mem_init is done. */ -void __init *early_get_page(void) -{ - if (init_bootmem_done) - return alloc_bootmem_pages(PAGE_SIZE); - else - return __va(memblock_alloc(PAGE_SIZE, PAGE_SIZE)); -} - -#ifdef CONFIG_8xx /* No 8xx specific .c file to put that in ... */ -void setup_initial_memory_limit(phys_addr_t first_memblock_base, - phys_addr_t first_memblock_size) -{ - /* We don't currently support the first MEMBLOCK not mapping 0 - * physical on those processors - */ - BUG_ON(first_memblock_base != 0); - - /* 8xx can only access 8MB at the moment */ - memblock_set_current_limit(min_t(u64, first_memblock_size, 0x00800000)); -} -#endif /* CONFIG_8xx */ |