Linux-2.6.12-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!
diff --git a/include/asm-sparc64/page.h b/include/asm-sparc64/page.h
new file mode 100644
index 0000000..219ea04
--- /dev/null
+++ b/include/asm-sparc64/page.h
@@ -0,0 +1,172 @@
+/* $Id: page.h,v 1.39 2002/02/09 19:49:31 davem Exp $ */
+
+#ifndef _SPARC64_PAGE_H
+#define _SPARC64_PAGE_H
+
+#include <linux/config.h>
+#include <asm/const.h>
+
+#if defined(CONFIG_SPARC64_PAGE_SIZE_8KB)
+#define PAGE_SHIFT 13
+#elif defined(CONFIG_SPARC64_PAGE_SIZE_64KB)
+#define PAGE_SHIFT 16
+#elif defined(CONFIG_SPARC64_PAGE_SIZE_512KB)
+#define PAGE_SHIFT 19
+#elif defined(CONFIG_SPARC64_PAGE_SIZE_4MB)
+#define PAGE_SHIFT 22
+#else
+#error No page size specified in kernel configuration
+#endif
+
+#define PAGE_SIZE (_AC(1,UL) << PAGE_SHIFT)
+#define PAGE_MASK (~(PAGE_SIZE-1))
+
+#ifdef __KERNEL__
+
+#ifndef __ASSEMBLY__
+
+extern void _clear_page(void *page);
+#define clear_page(X) _clear_page((void *)(X))
+struct page;
+extern void clear_user_page(void *addr, unsigned long vaddr, struct page *page);
+#define copy_page(X,Y) memcpy((void *)(X), (void *)(Y), PAGE_SIZE)
+extern void copy_user_page(void *to, void *from, unsigned long vaddr, struct page *topage);
+
+/* Unlike sparc32, sparc64's parameter passing API is more
+ * sane in that structures which as small enough are passed
+ * in registers instead of on the stack. Thus, setting
+ * STRICT_MM_TYPECHECKS does not generate worse code so
+ * let's enable it to get the type checking.
+ */
+
+#define STRICT_MM_TYPECHECKS
+
+#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 iopte; } iopte_t;
+typedef struct { unsigned int pmd; } pmd_t;
+typedef struct { unsigned int pgd; } pgd_t;
+typedef struct { unsigned long pgprot; } pgprot_t;
+
+#define pte_val(x) ((x).pte)
+#define iopte_val(x) ((x).iopte)
+#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 __iopte(x) ((iopte_t) { (x) } )
+#define __pmd(x) ((pmd_t) { (x) } )
+#define __pgd(x) ((pgd_t) { (x) } )
+#define __pgprot(x) ((pgprot_t) { (x) } )
+
+#else
+/* .. while these make it easier on the compiler */
+typedef unsigned long pte_t;
+typedef unsigned long iopte_t;
+typedef unsigned int pmd_t;
+typedef unsigned int pgd_t;
+typedef unsigned long pgprot_t;
+
+#define pte_val(x) (x)
+#define iopte_val(x) (x)
+#define pmd_val(x) (x)
+#define pgd_val(x) (x)
+#define pgprot_val(x) (x)
+
+#define __pte(x) (x)
+#define __iopte(x) (x)
+#define __pmd(x) (x)
+#define __pgd(x) (x)
+#define __pgprot(x) (x)
+
+#endif /* (STRICT_MM_TYPECHECKS) */
+
+#if defined(CONFIG_HUGETLB_PAGE_SIZE_4MB)
+#define HPAGE_SHIFT 22
+#elif defined(CONFIG_HUGETLB_PAGE_SIZE_512K)
+#define HPAGE_SHIFT 19
+#elif defined(CONFIG_HUGETLB_PAGE_SIZE_64K)
+#define HPAGE_SHIFT 16
+#endif
+
+#ifdef CONFIG_HUGETLB_PAGE
+#define HPAGE_SIZE (_AC(1,UL) << HPAGE_SHIFT)
+#define HPAGE_MASK (~(HPAGE_SIZE - 1UL))
+#define HUGETLB_PAGE_ORDER (HPAGE_SHIFT - PAGE_SHIFT)
+#endif
+
+#define TASK_UNMAPPED_BASE (test_thread_flag(TIF_32BIT) ? \
+ (_AC(0x0000000070000000,UL)) : (PAGE_OFFSET))
+
+#endif /* !(__ASSEMBLY__) */
+
+/* to align the pointer to the (next) page boundary */
+#define PAGE_ALIGN(addr) (((addr)+PAGE_SIZE-1)&PAGE_MASK)
+
+/* We used to stick this into a hard-coded global register (%g4)
+ * but that does not make sense anymore.
+ */
+#define PAGE_OFFSET _AC(0xFFFFF80000000000,UL)
+
+#ifndef __ASSEMBLY__
+
+#define __pa(x) ((unsigned long)(x) - PAGE_OFFSET)
+#define __va(x) ((void *)((unsigned long) (x) + PAGE_OFFSET))
+
+/* PFNs are real physical page numbers. However, mem_map only begins to record
+ * per-page information starting at pfn_base. This is to handle systems where
+ * the first physical page in the machine is at some huge physical address,
+ * such as 4GB. This is common on a partitioned E10000, for example.
+ */
+extern struct page *pfn_to_page(unsigned long pfn);
+extern unsigned long page_to_pfn(struct page *);
+
+#define virt_to_page(kaddr) pfn_to_page(__pa(kaddr)>>PAGE_SHIFT)
+
+#define pfn_valid(pfn) (((pfn)-(pfn_base)) < max_mapnr)
+#define virt_addr_valid(kaddr) pfn_valid(__pa(kaddr) >> PAGE_SHIFT)
+
+#define virt_to_phys __pa
+#define phys_to_virt __va
+
+/* The following structure is used to hold the physical
+ * memory configuration of the machine. This is filled in
+ * probe_memory() and is later used by mem_init() to set up
+ * mem_map[]. We statically allocate SPARC_PHYS_BANKS of
+ * these structs, this is arbitrary. The entry after the
+ * last valid one has num_bytes==0.
+ */
+
+struct sparc_phys_banks {
+ unsigned long base_addr;
+ unsigned long num_bytes;
+};
+
+#define SPARC_PHYS_BANKS 32
+
+extern struct sparc_phys_banks sp_banks[SPARC_PHYS_BANKS];
+
+/* Pure 2^n version of get_order */
+static __inline__ int get_order(unsigned long size)
+{
+ int order;
+
+ size = (size-1) >> (PAGE_SHIFT-1);
+ order = -1;
+ do {
+ size >>= 1;
+ order++;
+ } while (size);
+ return order;
+}
+
+#endif /* !(__ASSEMBLY__) */
+
+#define VM_DATA_DEFAULT_FLAGS (VM_READ | VM_WRITE | VM_EXEC | \
+ VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC)
+
+#endif /* !(__KERNEL__) */
+
+#endif /* !(_SPARC64_PAGE_H) */