#include <linux/initrd.h>
#include <linux/highmem.h>
#include <linux/gfp.h>
+#include <linux/memblock.h>
#include <asm/mach-types.h>
#include <asm/sections.h>
}
}
-/*
- * FIXME: We really want to avoid allocating the bootmap bitmap
- * over the top of the initrd. Hopefully, this is located towards
- * the start of a bank, so if we allocate the bootmap bitmap at
- * the end, we won't clash.
- */
-static unsigned int __init
-find_bootmap_pfn(struct meminfo *mi, unsigned int bootmap_pages)
-{
- unsigned int start_pfn, i, bootmap_pfn;
-
- start_pfn = PAGE_ALIGN(__pa(_end)) >> PAGE_SHIFT;
- bootmap_pfn = 0;
-
- for_each_bank(i, mi) {
- struct membank *bank = &mi->bank[i];
- unsigned int start, end;
-
- start = bank_pfn_start(bank);
- end = bank_pfn_end(bank);
-
- if (end < start_pfn)
- continue;
-
- if (start < start_pfn)
- start = start_pfn;
-
- if (end <= start)
- continue;
-
- if (end - start >= bootmap_pages) {
- bootmap_pfn = start;
- break;
- }
- }
-
- if (bootmap_pfn == 0)
- BUG();
-
- return bootmap_pfn;
-}
-
-static int __init check_initrd(struct meminfo *mi)
-{
- int initrd = -2;
-#ifdef CONFIG_BLK_DEV_INITRD
- unsigned long end = phys_initrd_start + phys_initrd_size;
-
- /*
- * Make sure that the initrd is within a valid area of
- * memory.
- */
- if (phys_initrd_size) {
- unsigned int i;
-
- initrd = -1;
-
- for (i = 0; i < mi->nr_banks; i++) {
- struct membank *bank = &mi->bank[i];
- if (bank_phys_start(bank) <= phys_initrd_start &&
- end <= bank_phys_end(bank))
- initrd = 0;
- }
- }
-
- if (initrd == -1) {
- printk(KERN_ERR "INITRD: 0x%08lx+0x%08lx extends beyond "
- "physical memory - disabling initrd\n",
- phys_initrd_start, phys_initrd_size);
- phys_initrd_start = phys_initrd_size = 0;
- }
-#endif
-
- return initrd;
-}
-
static void __init arm_bootmem_init(struct meminfo *mi,
unsigned long start_pfn, unsigned long end_pfn)
{
- unsigned long boot_pfn;
unsigned int boot_pages;
+ phys_addr_t bitmap;
pg_data_t *pgdat;
int i;
/*
- * Allocate the bootmem bitmap page.
+ * Allocate the bootmem bitmap page. This must be in a region
+ * of memory which has already been mapped.
*/
boot_pages = bootmem_bootmap_pages(end_pfn - start_pfn);
- boot_pfn = find_bootmap_pfn(mi, boot_pages);
+ bitmap = memblock_alloc_base(boot_pages << PAGE_SHIFT, L1_CACHE_BYTES,
+ __pfn_to_phys(end_pfn));
/*
* Initialise the bootmem allocator, handing the
*/
node_set_online(0);
pgdat = NODE_DATA(0);
- init_bootmem_node(pgdat, boot_pfn, start_pfn, end_pfn);
+ init_bootmem_node(pgdat, __phys_to_pfn(bitmap), start_pfn, end_pfn);
for_each_bank(i, mi) {
struct membank *bank = &mi->bank[i];
}
/*
- * Reserve the bootmem bitmap.
+ * Reserve the memblock reserved regions in bootmem.
*/
- reserve_bootmem(boot_pfn << PAGE_SHIFT,
- boot_pages << PAGE_SHIFT, BOOTMEM_DEFAULT);
-}
-
-static void __init bootmem_reserve_initrd(void)
-{
-#ifdef CONFIG_BLK_DEV_INITRD
- int res;
-
- res = reserve_bootmem(phys_initrd_start,
- phys_initrd_size, BOOTMEM_EXCLUSIVE);
-
- if (res == 0) {
- initrd_start = __phys_to_virt(phys_initrd_start);
- initrd_end = initrd_start + phys_initrd_size;
- } else {
- printk(KERN_ERR
- "INITRD: 0x%08lx+0x%08lx overlaps in-use "
- "memory region - disabling initrd\n",
- phys_initrd_start, phys_initrd_size);
+ for (i = 0; i < memblock.reserved.cnt; i++) {
+ phys_addr_t start = memblock_start_pfn(&memblock.reserved, i);
+ if (start >= start_pfn &&
+ memblock_end_pfn(&memblock.reserved, i) <= end_pfn)
+ reserve_bootmem_node(pgdat, __pfn_to_phys(start),
+ memblock_size_bytes(&memblock.reserved, i),
+ BOOTMEM_DEFAULT);
}
-#endif
}
static void __init arm_bootmem_free(struct meminfo *mi)
}
#endif
+void __init arm_memblock_init(struct meminfo *mi)
+{
+ int i;
+
+ memblock_init();
+ 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(_data), _end - _data);
+#else
+ memblock_reserve(__pa(_stext), _end - _stext);
+#endif
+#ifdef CONFIG_BLK_DEV_INITRD
+ if (phys_initrd_size) {
+ memblock_reserve(phys_initrd_start, phys_initrd_size);
+
+ /* Now convert initrd to virtual addresses */
+ initrd_start = __phys_to_virt(phys_initrd_start);
+ initrd_end = initrd_start + phys_initrd_size;
+ }
+#endif
+
+ arm_mm_memblock_reserve();
+
+ memblock_analyze();
+ memblock_dump_all();
+}
+
void __init bootmem_init(struct machine_desc *mdesc)
{
struct meminfo *mi = &meminfo;
unsigned long min, max_low, max_high;
- int initrd;
-
- /*
- * Locate the ramdisk image, if any.
- */
- initrd = check_initrd(mi);
max_low = max_high = 0;
arm_bootmem_init(mi, min, max_low);
- /*
- * Reserve any special regions.
- */
- reserve_special_regions();
-
if (mdesc->reserve)
mdesc->reserve();
- /*
- * If the initrd is present, reserve its memory.
- */
- if (initrd == 0)
- bootmem_reserve_initrd();
-
/*
* Sparsemem tries to allocate bootmem in memory_present(),
* so must be done after the fixed reservations
#include <linux/kernel.h>
#include <linux/errno.h>
#include <linux/init.h>
-#include <linux/bootmem.h>
#include <linux/mman.h>
#include <linux/nodemask.h>
+#include <linux/memblock.h>
#include <linux/sort.h>
#include <asm/cputype.h>
static void __init *early_alloc(unsigned long sz)
{
- return alloc_bootmem_low_pages(sz);
+ void *ptr = __va(memblock_alloc(sz, sz));
+ memset(ptr, 0, sz);
+ return ptr;
}
static pte_t * __init early_pte_alloc(pmd_t *pmd, unsigned long addr, unsigned long prot)
}
early_param("vmalloc", early_vmalloc);
+phys_addr_t lowmem_end_addr;
+
static void __init sanity_check_meminfo(void)
{
int i, j, highmem = 0;
+ lowmem_end_addr = __pa(vmalloc_min - 1) + 1;
+
for (i = 0, j = 0; i < meminfo.nr_banks; i++) {
struct membank *bank = &meminfo.bank[j];
*bank = meminfo.bank[i];
}
/*
- * Reserve the various regions
+ * Reserve the special regions of memory
*/
-void __init reserve_special_regions(void)
+void __init arm_mm_memblock_reserve(void)
{
- /*
- * Register the kernel text and data with bootmem.
- * Note that this can only be in node 0.
- */
-#ifdef CONFIG_XIP_KERNEL
- reserve_bootmem(__pa(_data), _end - _data, BOOTMEM_DEFAULT);
-#else
- reserve_bootmem(__pa(_stext), _end - _stext, BOOTMEM_DEFAULT);
-#endif
-
/*
* Reserve the page tables. These are already in use,
* and can only be in node 0.
*/
- reserve_bootmem(__pa(swapper_pg_dir),
- PTRS_PER_PGD * sizeof(pgd_t), BOOTMEM_DEFAULT);
+ memblock_reserve(__pa(swapper_pg_dir), PTRS_PER_PGD * sizeof(pgd_t));
#ifdef CONFIG_SA1111
/*
* Because of the SA1111 DMA bug, we want to preserve our
* precious DMA-able memory...
*/
- reserve_bootmem(PHYS_OFFSET, __pa(swapper_pg_dir) - PHYS_OFFSET,
- BOOTMEM_DEFAULT);
+ memblock_reserve(PHYS_OFFSET, __pa(swapper_pg_dir) - PHYS_OFFSET);
#endif
}
sanity_check_meminfo();
prepare_page_table();
map_lowmem();
- bootmem_init(mdesc);
devicemaps_init(mdesc);
kmap_init();
/* allocate the zero page. */
zero_page = early_alloc(PAGE_SIZE);
+
+ bootmem_init(mdesc);
+
empty_zero_page = virt_to_page(zero_page);
__flush_dcache_page(NULL, empty_zero_page);
}
#include <linux/module.h>
#include <linux/mm.h>
#include <linux/pagemap.h>
-#include <linux/bootmem.h>
#include <linux/io.h>
+#include <linux/memblock.h>
#include <asm/cacheflush.h>
#include <asm/sections.h>
#include "mm.h"
-/*
- * Reserve the various regions
- */
-void __init reserve_special_regions(void)
+void __init arm_mm_memblock_reserve(void)
{
- /*
- * Register the kernel text and data with bootmem.
- * Note that this can only be in node 0.
- */
-#ifdef CONFIG_XIP_KERNEL
- reserve_bootmem(__pa(_data), _end - _data, BOOTMEM_DEFAULT);
-#else
- reserve_bootmem(__pa(_stext), _end - _stext, BOOTMEM_DEFAULT);
-#endif
-
/*
* Register the exception vector page.
* some architectures which the DRAM is the exception vector to trap,
* alloc_page breaks with error, although it is not NULL, but "0."
*/
- reserve_bootmem(CONFIG_VECTORS_BASE, PAGE_SIZE, BOOTMEM_DEFAULT);
+ memblock_reserve(CONFIG_VECTORS_BASE, PAGE_SIZE);
}
/*
git.openpandora.org / pandora-kernel.git / commitdiff