Linux-2.6.12-rc2v2.6.12-rc2

Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!

1 files changed, 207 insertions, 0 deletions

diff --git a/include/asm-ia64/page.h b/include/asm-ia64/page.h
new file mode 100644
index 000000000000..24aab801a8ca
--- /dev/null
+++ b/include/asm-ia64/page.h
@@ -0,0 +1,207 @@
+#ifndef _ASM_IA64_PAGE_H
+#define _ASM_IA64_PAGE_H
+/*
+ * Pagetable related stuff.
+ *
+ * Copyright (C) 1998, 1999, 2002 Hewlett-Packard Co
+ *      David Mosberger-Tang <davidm@hpl.hp.com>
+ */
+
+#include <linux/config.h>
+
+#include <asm/intrinsics.h>
+#include <asm/types.h>
+
+/*
+ * PAGE_SHIFT determines the actual kernel page size.
+ */
+#if defined(CONFIG_IA64_PAGE_SIZE_4KB)
+# define PAGE_SHIFT     12
+#elif defined(CONFIG_IA64_PAGE_SIZE_8KB)
+# define PAGE_SHIFT     13
+#elif defined(CONFIG_IA64_PAGE_SIZE_16KB)
+# define PAGE_SHIFT     14
+#elif defined(CONFIG_IA64_PAGE_SIZE_64KB)
+# define PAGE_SHIFT     16
+#else
+# error Unsupported page size!
+#endif
+
+#define PAGE_SIZE               (__IA64_UL_CONST(1) << PAGE_SHIFT)
+#define PAGE_MASK               (~(PAGE_SIZE - 1))
+#define PAGE_ALIGN(addr)        (((addr) + PAGE_SIZE - 1) & PAGE_MASK)
+
+#define PERCPU_PAGE_SHIFT       16      /* log2() of max. size of per-CPU area */
+#define PERCPU_PAGE_SIZE        (__IA64_UL_CONST(1) << PERCPU_PAGE_SHIFT)
+
+#define RGN_MAP_LIMIT   ((1UL << (4*PAGE_SHIFT - 12)) - PAGE_SIZE)      /* per region addr limit */
+
+#ifdef CONFIG_HUGETLB_PAGE
+# define REGION_HPAGE           (4UL)   /* note: this is hardcoded in reload_context()!*/
+# define REGION_SHIFT           61
+# define HPAGE_REGION_BASE      (REGION_HPAGE << REGION_SHIFT)
+# define HPAGE_SHIFT            hpage_shift
+# define HPAGE_SHIFT_DEFAULT    28      /* check ia64 SDM for architecture supported size */
+# define HPAGE_SIZE             (__IA64_UL_CONST(1) << HPAGE_SHIFT)
+# define HPAGE_MASK             (~(HPAGE_SIZE - 1))
+
+# define HAVE_ARCH_HUGETLB_UNMAPPED_AREA
+# define ARCH_HAS_HUGEPAGE_ONLY_RANGE
+#endif /* CONFIG_HUGETLB_PAGE */
+
+#ifdef __ASSEMBLY__
+# define __pa(x)                ((x) - PAGE_OFFSET)
+# define __va(x)                ((x) + PAGE_OFFSET)
+#else /* !__ASSEMBLY */
+# ifdef __KERNEL__
+#  define STRICT_MM_TYPECHECKS
+
+extern void clear_page (void *page);
+extern void copy_page (void *to, void *from);
+
+/*
+ * clear_user_page() and copy_user_page() can't be inline functions because
+ * flush_dcache_page() can't be defined until later...
+ */
+#define clear_user_page(addr, vaddr, page)      \
+do {                                            \
+        clear_page(addr);                       \
+        flush_dcache_page(page);                \
+} while (0)
+
+#define copy_user_page(to, from, vaddr, page)   \
+do {                                            \
+        copy_page((to), (from));                \
+        flush_dcache_page(page);                \
+} while (0)
+
+
+#define alloc_zeroed_user_highpage(vma, vaddr) \
+({                                              \
+        struct page *page = alloc_page_vma(GFP_HIGHUSER | __GFP_ZERO, vma, vaddr); \
+        if (page)                               \
+                flush_dcache_page(page);        \
+        page;                                   \
+})
+
+#define __HAVE_ARCH_ALLOC_ZEROED_USER_HIGHPAGE
+
+#define virt_addr_valid(kaddr)  pfn_valid(__pa(kaddr) >> PAGE_SHIFT)
+
+#ifdef CONFIG_VIRTUAL_MEM_MAP
+extern int ia64_pfn_valid (unsigned long pfn);
+#else
+# define ia64_pfn_valid(pfn) 1
+#endif
+
+#ifndef CONFIG_DISCONTIGMEM
+# define pfn_valid(pfn)         (((pfn) < max_mapnr) && ia64_pfn_valid(pfn))
+# define page_to_pfn(page)      ((unsigned long) (page - mem_map))
+# define pfn_to_page(pfn)       (mem_map + (pfn))
+#else
+extern struct page *vmem_map;
+extern unsigned long max_low_pfn;
+# define pfn_valid(pfn)         (((pfn) < max_low_pfn) && ia64_pfn_valid(pfn))
+# define page_to_pfn(page)      ((unsigned long) (page - vmem_map))
+# define pfn_to_page(pfn)       (vmem_map + (pfn))
+#endif
+
+#define page_to_phys(page)      (page_to_pfn(page) << PAGE_SHIFT)
+#define virt_to_page(kaddr)     pfn_to_page(__pa(kaddr) >> PAGE_SHIFT)
+
+typedef union ia64_va {
+        struct {
+                unsigned long off : 61;         /* intra-region offset */
+                unsigned long reg :  3;         /* region number */
+        } f;
+        unsigned long l;
+        void *p;
+} ia64_va;
+
+/*
+ * Note: These macros depend on the fact that PAGE_OFFSET has all
+ * region bits set to 1 and all other bits set to zero.  They are
+ * expressed in this way to ensure they result in a single "dep"
+ * instruction.
+ */
+#define __pa(x)         ({ia64_va _v; _v.l = (long) (x); _v.f.reg = 0; _v.l;})
+#define __va(x)         ({ia64_va _v; _v.l = (long) (x); _v.f.reg = -1; _v.p;})
+
+#define REGION_NUMBER(x)        ({ia64_va _v; _v.l = (long) (x); _v.f.reg;})
+#define REGION_OFFSET(x)        ({ia64_va _v; _v.l = (long) (x); _v.f.off;})
+
+#define REGION_SIZE             REGION_NUMBER(1)
+#define REGION_KERNEL           7
+
+#ifdef CONFIG_HUGETLB_PAGE
+# define htlbpage_to_page(x)    (((unsigned long) REGION_NUMBER(x) << 61)                       \
+                                 | (REGION_OFFSET(x) >> (HPAGE_SHIFT-PAGE_SHIFT)))
+# define HUGETLB_PAGE_ORDER     (HPAGE_SHIFT - PAGE_SHIFT)
+# define is_hugepage_only_range(mm, addr, len)          \
+         (REGION_NUMBER(addr) == REGION_HPAGE &&        \
+          REGION_NUMBER((addr)+(len)) == REGION_HPAGE)
+extern unsigned int hpage_shift;
+#endif
+
+static __inline__ int
+get_order (unsigned long size)
+{
+        long double d = size - 1;
+        long order;
+
+        order = ia64_getf_exp(d);
+        order = order - PAGE_SHIFT - 0xffff + 1;
+        if (order < 0)
+                order = 0;
+        return order;
+}
+
+# endif /* __KERNEL__ */
+#endif /* !__ASSEMBLY__ */
+
+#ifdef STRICT_MM_TYPECHECKS
+  /*
+   * These are used to make use of C type-checking..
+   */
+  typedef struct { unsigned long pte; } pte_t;
+  typedef struct { unsigned long pmd; } pmd_t;
+  typedef struct { unsigned long pgd; } pgd_t;
+  typedef struct { unsigned long pgprot; } pgprot_t;
+
+# define pte_val(x)     ((x).pte)
+# define pmd_val(x)     ((x).pmd)
+# define pgd_val(x)     ((x).pgd)
+# define pgprot_val(x)  ((x).pgprot)
+
+# define __pte(x)       ((pte_t) { (x) } )
+# define __pgprot(x)    ((pgprot_t) { (x) } )
+
+#else /* !STRICT_MM_TYPECHECKS */
+  /*
+   * .. while these make it easier on the compiler
+   */
+# ifndef __ASSEMBLY__
+    typedef unsigned long pte_t;
+    typedef unsigned long pmd_t;
+    typedef unsigned long pgd_t;
+    typedef unsigned long pgprot_t;
+# endif
+
+# define pte_val(x)     (x)
+# define pmd_val(x)     (x)
+# define pgd_val(x)     (x)
+# define pgprot_val(x)  (x)
+
+# define __pte(x)       (x)
+# define __pgd(x)       (x)
+# define __pgprot(x)    (x)
+#endif /* !STRICT_MM_TYPECHECKS */
+
+#define PAGE_OFFSET                     __IA64_UL_CONST(0xe000000000000000)
+
+#define VM_DATA_DEFAULT_FLAGS           (VM_READ | VM_WRITE |                                   \
+                                         VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC |                \
+                                         (((current->personality & READ_IMPLIES_EXEC) != 0)     \
+                                          ? VM_EXEC : 0))
+
+#endif /* _ASM_IA64_PAGE_H */