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-sparc/page.h b/include/asm-sparc/page.h
new file mode 100644
index 0000000..383060e
--- /dev/null
+++ b/include/asm-sparc/page.h
@@ -0,0 +1,181 @@
+/* $Id: page.h,v 1.55 2000/10/30 21:01:41 davem Exp $
+ * page.h: Various defines and such for MMU operations on the Sparc for
+ * the Linux kernel.
+ *
+ * Copyright (C) 1995 David S. Miller (davem@caip.rutgers.edu)
+ */
+
+#ifndef _SPARC_PAGE_H
+#define _SPARC_PAGE_H
+
+#include <linux/config.h>
+#ifdef CONFIG_SUN4
+#define PAGE_SHIFT 13
+#else
+#define PAGE_SHIFT 12
+#endif
+#ifndef __ASSEMBLY__
+/* I have my suspicions... -DaveM */
+#define PAGE_SIZE (1UL << PAGE_SHIFT)
+#else
+#define PAGE_SIZE (1 << PAGE_SHIFT)
+#endif
+#define PAGE_MASK (~(PAGE_SIZE-1))
+
+#ifdef __KERNEL__
+
+#include <asm/btfixup.h>
+
+#ifndef __ASSEMBLY__
+
+#define clear_page(page) memset((void *)(page), 0, PAGE_SIZE)
+#define copy_page(to,from) memcpy((void *)(to), (void *)(from), PAGE_SIZE)
+#define clear_user_page(addr, vaddr, page) \
+ do { clear_page(addr); \
+ sparc_flush_page_to_ram(page); \
+ } while (0)
+#define copy_user_page(to, from, vaddr, page) \
+ do { copy_page(to, from); \
+ sparc_flush_page_to_ram(page); \
+ } while (0)
+
+/* 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+1];
+
+/* Cache alias structure. Entry is valid if context != -1. */
+struct cache_palias {
+ unsigned long vaddr;
+ int context;
+};
+
+extern struct cache_palias *sparc_aliases;
+
+/* passing structs on the Sparc slow us down tremendously... */
+
+/* #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 long pmdv[16]; } pmd_t;
+typedef struct { unsigned long pgd; } pgd_t;
+typedef struct { unsigned long ctxd; } ctxd_t;
+typedef struct { unsigned long pgprot; } pgprot_t;
+typedef struct { unsigned long iopgprot; } iopgprot_t;
+
+#define pte_val(x) ((x).pte)
+#define iopte_val(x) ((x).iopte)
+#define pmd_val(x) ((x).pmdv[0])
+#define pgd_val(x) ((x).pgd)
+#define ctxd_val(x) ((x).ctxd)
+#define pgprot_val(x) ((x).pgprot)
+#define iopgprot_val(x) ((x).iopgprot)
+
+#define __pte(x) ((pte_t) { (x) } )
+#define __iopte(x) ((iopte_t) { (x) } )
+/* #define __pmd(x) ((pmd_t) { (x) } ) */ /* XXX procedure with loop */
+#define __pgd(x) ((pgd_t) { (x) } )
+#define __ctxd(x) ((ctxd_t) { (x) } )
+#define __pgprot(x) ((pgprot_t) { (x) } )
+#define __iopgprot(x) ((iopgprot_t) { (x) } )
+
+#else
+/*
+ * .. while these make it easier on the compiler
+ */
+typedef unsigned long pte_t;
+typedef unsigned long iopte_t;
+typedef struct { unsigned long pmdv[16]; } pmd_t;
+typedef unsigned long pgd_t;
+typedef unsigned long ctxd_t;
+typedef unsigned long pgprot_t;
+typedef unsigned long iopgprot_t;
+
+#define pte_val(x) (x)
+#define iopte_val(x) (x)
+#define pmd_val(x) ((x).pmdv[0])
+#define pgd_val(x) (x)
+#define ctxd_val(x) (x)
+#define pgprot_val(x) (x)
+#define iopgprot_val(x) (x)
+
+#define __pte(x) (x)
+#define __iopte(x) (x)
+/* #define __pmd(x) (x) */ /* XXX later */
+#define __pgd(x) (x)
+#define __ctxd(x) (x)
+#define __pgprot(x) (x)
+#define __iopgprot(x) (x)
+
+#endif
+
+extern unsigned long sparc_unmapped_base;
+
+BTFIXUPDEF_SETHI(sparc_unmapped_base)
+
+#define TASK_UNMAPPED_BASE BTFIXUP_SETHI(sparc_unmapped_base)
+
+/* Pure 2^n version of get_order */
+extern __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;
+}
+
+#else /* !(__ASSEMBLY__) */
+
+#define __pgprot(x) (x)
+
+#endif /* !(__ASSEMBLY__) */
+
+/* to align the pointer to the (next) page boundary */
+#define PAGE_ALIGN(addr) (((addr)+PAGE_SIZE-1)&PAGE_MASK)
+
+#define PAGE_OFFSET 0xf0000000
+#ifndef __ASSEMBLY__
+extern unsigned long phys_base;
+extern unsigned long pfn_base;
+#endif
+#define __pa(x) ((unsigned long)(x) - PAGE_OFFSET + phys_base)
+#define __va(x) ((void *)((unsigned long) (x) - phys_base + PAGE_OFFSET))
+
+#define virt_to_phys __pa
+#define phys_to_virt __va
+
+#define pfn_to_page(pfn) (mem_map + ((pfn)-(pfn_base)))
+#define page_to_pfn(page) ((unsigned long)(((page) - mem_map) + pfn_base))
+#define virt_to_page(kaddr) (mem_map + ((((unsigned long)(kaddr)-PAGE_OFFSET)>>PAGE_SHIFT)))
+
+#define pfn_valid(pfn) (((pfn) >= (pfn_base)) && (((pfn)-(pfn_base)) < max_mapnr))
+#define virt_addr_valid(kaddr) ((((unsigned long)(kaddr)-PAGE_OFFSET)>>PAGE_SHIFT) < max_mapnr)
+
+#define VM_DATA_DEFAULT_FLAGS (VM_READ | VM_WRITE | VM_EXEC | \
+ VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC)
+
+#endif /* __KERNEL__ */
+
+#endif /* _SPARC_PAGE_H */