#include <linux/bitops.h>
#include <linux/kexec.h>
-#include <asm/a.out.h>
#include <asm/dma.h>
#include <asm/ia32.h>
#include <asm/io.h>
#include <asm/uaccess.h>
#include <asm/unistd.h>
#include <asm/mca.h>
+#include <asm/paravirt.h>
DEFINE_PER_CPU(struct mmu_gather, mmu_gathers);
-DEFINE_PER_CPU(unsigned long *, __pgtable_quicklist);
-DEFINE_PER_CPU(long, __pgtable_quicklist_size);
-
extern void ia64_tlb_init (void);
unsigned long MAX_DMA_ADDRESS = PAGE_OFFSET + 0x100000000UL;
#ifdef CONFIG_VIRTUAL_MEM_MAP
-unsigned long vmalloc_end = VMALLOC_END_INIT;
-EXPORT_SYMBOL(vmalloc_end);
+unsigned long VMALLOC_END = VMALLOC_END_INIT;
+EXPORT_SYMBOL(VMALLOC_END);
struct page *vmem_map;
EXPORT_SYMBOL(vmem_map);
#endif
struct page *zero_page_memmap_ptr; /* map entry for zero page */
EXPORT_SYMBOL(zero_page_memmap_ptr);
-#define MIN_PGT_PAGES 25UL
-#define MAX_PGT_FREES_PER_PASS 16L
-#define PGT_FRACTION_OF_NODE_MEM 16
-
-static inline long
-max_pgt_pages(void)
-{
- u64 node_free_pages, max_pgt_pages;
-
-#ifndef CONFIG_NUMA
- node_free_pages = nr_free_pages();
-#else
- node_free_pages = node_page_state(numa_node_id(), NR_FREE_PAGES);
-#endif
- max_pgt_pages = node_free_pages / PGT_FRACTION_OF_NODE_MEM;
- max_pgt_pages = max(max_pgt_pages, MIN_PGT_PAGES);
- return max_pgt_pages;
-}
-
-static inline long
-min_pages_to_free(void)
-{
- long pages_to_free;
-
- pages_to_free = pgtable_quicklist_size - max_pgt_pages();
- pages_to_free = min(pages_to_free, MAX_PGT_FREES_PER_PASS);
- return pages_to_free;
-}
-
-void
-check_pgt_cache(void)
-{
- long pages_to_free;
-
- if (unlikely(pgtable_quicklist_size <= MIN_PGT_PAGES))
- return;
-
- preempt_disable();
- while (unlikely((pages_to_free = min_pages_to_free()) > 0)) {
- while (pages_to_free--) {
- free_page((unsigned long)pgtable_quicklist_alloc());
- }
- preempt_enable();
- preempt_disable();
- }
- preempt_enable();
-}
-
void
-lazy_mmu_prot_update (pte_t pte)
+__ia64_sync_icache_dcache (pte_t pte)
{
unsigned long addr;
struct page *page;
- unsigned long order;
-
- if (!pte_exec(pte))
- return; /* not an executable page... */
page = pte_page(pte);
addr = (unsigned long) page_address(page);
if (test_bit(PG_arch_1, &page->flags))
return; /* i-cache is already coherent with d-cache */
- if (PageCompound(page)) {
- order = (unsigned long) (page[1].lru.prev);
- flush_icache_range(addr, addr + (1UL << order << PAGE_SHIFT));
- }
- else
- flush_icache_range(addr, addr + PAGE_SIZE);
+ flush_icache_range(addr, addr + (PAGE_SIZE << compound_order(page)));
set_bit(PG_arch_1, &page->flags); /* mark page as clean */
}
inline void
ia64_set_rbs_bot (void)
{
- unsigned long stack_size = current->signal->rlim[RLIMIT_STACK].rlim_max & -16;
+ unsigned long stack_size = rlimit_max(RLIMIT_STACK) & -16;
if (stack_size > MAX_USER_STACK_SIZE)
stack_size = MAX_USER_STACK_SIZE;
vma->vm_mm = current->mm;
vma->vm_start = current->thread.rbs_bot & PAGE_MASK;
vma->vm_end = vma->vm_start + PAGE_SIZE;
- vma->vm_page_prot = protection_map[VM_DATA_DEFAULT_FLAGS & 0x7];
vma->vm_flags = VM_DATA_DEFAULT_FLAGS|VM_GROWSUP|VM_ACCOUNT;
+ vma->vm_page_prot = vm_get_page_prot(vma->vm_flags);
down_write(¤t->mm->mmap_sem);
if (insert_vm_struct(current->mm, vma)) {
up_write(¤t->mm->mmap_sem);
static void __init
setup_gate (void)
{
+ void *gate_section;
struct page *page;
/*
* headers etc. and once execute-only page to enable
* privilege-promotion via "epc":
*/
- page = virt_to_page(ia64_imva(__start_gate_section));
+ gate_section = paravirt_get_gate_section();
+ page = virt_to_page(ia64_imva(gate_section));
put_kernel_page(page, GATE_ADDR, PAGE_READONLY);
#ifdef HAVE_BUGGY_SEGREL
- page = virt_to_page(ia64_imva(__start_gate_section + PAGE_SIZE));
+ page = virt_to_page(ia64_imva(gate_section + PAGE_SIZE));
put_kernel_page(page, GATE_ADDR + PAGE_SIZE, PAGE_GATE);
#else
put_kernel_page(page, GATE_ADDR + PERCPU_PAGE_SIZE, PAGE_GATE);
return hole_next_pfn - pgdat->node_start_pfn;
}
-int __init
-create_mem_map_page_table (u64 start, u64 end, void *arg)
+int __init create_mem_map_page_table(u64 start, u64 end, void *arg)
{
unsigned long address, start_page, end_page;
struct page *map_start, *map_end;
unsigned long zone;
};
-static int
-virtual_memmap_init (u64 start, u64 end, void *arg)
+static int __meminit
+virtual_memmap_init(u64 start, u64 end, void *arg)
{
struct memmap_init_callback_data *args;
struct page *map_start, *map_end;
return 0;
}
-void
+void __meminit
memmap_init (unsigned long size, int nid, unsigned long zone,
unsigned long start_pfn)
{
}
EXPORT_SYMBOL(ia64_pfn_valid);
-int __init
-find_largest_hole (u64 start, u64 end, void *arg)
+int __init find_largest_hole(u64 start, u64 end, void *arg)
{
u64 *max_gap = arg;
#endif /* CONFIG_VIRTUAL_MEM_MAP */
-int __init
-register_active_ranges(u64 start, u64 end, void *arg)
+int __init register_active_ranges(u64 start, u64 len, int nid)
{
- int nid = paddr_to_nid(__pa(start));
+ u64 end = start + len;
- if (nid < 0)
- nid = 0;
#ifdef CONFIG_KEXEC
if (start > crashk_res.start && start < crashk_res.end)
start = crashk_res.end;
}
static int __init
-count_reserved_pages (u64 start, u64 end, void *arg)
+count_reserved_pages(u64 start, u64 end, void *arg)
{
unsigned long num_reserved = 0;
unsigned long *count = arg;
}
int
-find_max_min_low_pfn (unsigned long start, unsigned long end, void *arg)
+find_max_min_low_pfn (u64 start, u64 end, void *arg)
{
unsigned long pfn_start, pfn_end;
#ifdef CONFIG_FLATMEM
long reserved_pages, codesize, datasize, initsize;
pg_data_t *pgdat;
int i;
- static struct kcore_list kcore_mem, kcore_vmem, kcore_kernel;
BUG_ON(PTRS_PER_PGD * sizeof(pgd_t) != PAGE_SIZE);
BUG_ON(PTRS_PER_PMD * sizeof(pmd_t) != PAGE_SIZE);
#endif
#ifdef CONFIG_FLATMEM
- if (!mem_map)
- BUG();
+ BUG_ON(!mem_map);
max_mapnr = max_low_pfn;
#endif
high_memory = __va(max_low_pfn * PAGE_SIZE);
- kclist_add(&kcore_mem, __va(0), max_low_pfn * PAGE_SIZE);
- kclist_add(&kcore_vmem, (void *)VMALLOC_START, VMALLOC_END-VMALLOC_START);
- kclist_add(&kcore_kernel, _stext, _end - _stext);
-
for_each_online_pgdat(pgdat)
if (pgdat->bdata->node_bootmem_map)
totalram_pages += free_all_bootmem_node(pgdat);
initsize = (unsigned long) __init_end - (unsigned long) __init_begin;
printk(KERN_INFO "Memory: %luk/%luk available (%luk code, %luk reserved, "
- "%luk data, %luk init)\n", (unsigned long) nr_free_pages() << (PAGE_SHIFT - 10),
+ "%luk data, %luk init)\n", nr_free_pages() << (PAGE_SHIFT - 10),
num_physpages << (PAGE_SHIFT - 10), codesize >> 10,
reserved_pages << (PAGE_SHIFT - 10), datasize >> 10, initsize >> 10);
* code can tell them apart.
*/
for (i = 0; i < NR_syscalls; ++i) {
- extern unsigned long fsyscall_table[NR_syscalls];
extern unsigned long sys_call_table[NR_syscalls];
+ unsigned long *fsyscall_table = paravirt_get_fsyscall_table();
if (!fsyscall_table[i] || nolwsys)
fsyscall_table[i] = sys_call_table[i] | 1;
}
#ifdef CONFIG_MEMORY_HOTPLUG
-void online_page(struct page *page)
-{
- ClearPageReserved(page);
- init_page_count(page);
- __free_page(page);
- totalram_pages++;
- num_physpages++;
-}
-
int arch_add_memory(int nid, u64 start, u64 size)
{
pg_data_t *pgdat;
pgdat = NODE_DATA(nid);
zone = pgdat->node_zones + ZONE_NORMAL;
- ret = __add_pages(zone, start_pfn, nr_pages);
+ ret = __add_pages(nid, zone, start_pfn, nr_pages);
if (ret)
printk("%s: Problem encountered in __add_pages() as ret=%d\n",
- __FUNCTION__, ret);
+ __func__, ret);
return ret;
}
+#endif
-int remove_memory(u64 start, u64 size)
+/*
+ * Even when CONFIG_IA32_SUPPORT is not enabled it is
+ * useful to have the Linux/x86 domain registered to
+ * avoid an attempted module load when emulators call
+ * personality(PER_LINUX32). This saves several milliseconds
+ * on each such call.
+ */
+static struct exec_domain ia32_exec_domain;
+
+static int __init
+per_linux32_init(void)
{
- return -EINVAL;
+ ia32_exec_domain.name = "Linux/x86";
+ ia32_exec_domain.handler = NULL;
+ ia32_exec_domain.pers_low = PER_LINUX32;
+ ia32_exec_domain.pers_high = PER_LINUX32;
+ ia32_exec_domain.signal_map = default_exec_domain.signal_map;
+ ia32_exec_domain.signal_invmap = default_exec_domain.signal_invmap;
+ register_exec_domain(&ia32_exec_domain);
+
+ return 0;
}
-EXPORT_SYMBOL_GPL(remove_memory);
-#endif
+
+__initcall(per_linux32_init);
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff