patch-2.3.23 linux/include/asm-i386/page.h

• Lines: 99
• Date: Tue Oct 19 10:22:20 1999
• Orig file: v2.3.22/linux/include/asm-i386/page.h
• Orig date: Mon Oct 11 15:38:15 1999

diff -u --recursive --new-file v2.3.22/linux/include/asm-i386/page.h linux/include/asm-i386/page.h
@@ -9,8 +9,6 @@
 #ifdef __KERNEL__
 #ifndef __ASSEMBLY__
 
-#define STRICT_MM_TYPECHECKS
-
 #include <linux/config.h>
 
 #ifdef CONFIG_X86_USE_3DNOW
@@ -32,13 +30,19 @@
 
 #endif
 
-#ifdef STRICT_MM_TYPECHECKS
 /*
  * These are used to make use of C type-checking..
  */
+#if CONFIG_X86_PAE
+typedef struct { unsigned long long pte; } pte_t;
+typedef struct { unsigned long long pmd; } pmd_t;
+typedef struct { unsigned long long pgd; } pgd_t;
+#else
 typedef struct { unsigned long pte; } pte_t;
 typedef struct { unsigned long pmd; } pmd_t;
 typedef struct { unsigned long pgd; } pgd_t;
+#endif
+
 typedef struct { unsigned long pgprot; } pgprot_t;
 
 #define pte_val(x)	((x).pte)
@@ -51,26 +55,6 @@
 #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 pmd_t;
-typedef unsigned long pgd_t;
-typedef unsigned long pgprot_t;
-
-#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 __pmd(x)	(x)
-#define __pgd(x)	(x)
-#define __pgprot(x)	(x)
-
-#endif
 #endif /* !__ASSEMBLY__ */
 
 /* to align the pointer to the (next) page boundary */
@@ -83,29 +67,26 @@
  *
  * A __PAGE_OFFSET of 0xC0000000 means that the kernel has
  * a virtual address space of one gigabyte, which limits the
- * amount of physical memory you can use to about 950MB. If
- * you want to use more physical memory, change this define.
- *
- * For example, if you have 2GB worth of physical memory, you
- * could change this define to 0x80000000, which gives the
- * kernel 2GB of virtual memory (enough to most of your physical memory
- * as the kernel needs a bit extra for various io-memory mappings)
- *
- * IF YOU CHANGE THIS, PLEASE ALSO CHANGE
- *
- *	arch/i386/vmlinux.lds
+ * amount of physical memory you can use to about 950MB. 
  *
- * which has the same constant encoded..
+ * If you want more physical memory than this then see the CONFIG_BIGMEM
+ * option in the kernel configuration.
  */
 
-#include <asm/page_offset.h>
-
-#define __PAGE_OFFSET		(PAGE_OFFSET_RAW)
+#define __PAGE_OFFSET		(0xC0000000)
 
 #ifndef __ASSEMBLY__
 
+extern int console_loglevel;
+
+/*
+ * Tell the user there is some problem. Beep too, so we can
+ * see^H^H^Hhear bugs in early bootup as well!
+ */
 #define BUG() do { \
+	__asm__ __volatile__ ("movb $0x3,%al; outb %al,$0x61"); \
 	printk("kernel BUG at %s:%d!\n", __FILE__, __LINE__); \
+	console_loglevel = 0; \
 	__asm__ __volatile__(".byte 0x0f,0x0b"); \
 } while (0)