patch-1.3.44 linux/arch/sparc/mm/loadmmu.c

• Lines: 105
• Date: Sat Nov 25 02:59:26 1995
• Orig file: v1.3.43/linux/arch/sparc/mm/loadmmu.c
• Orig date: Sun Sep 3 12:26:49 1995

diff -u --recursive --new-file v1.3.43/linux/arch/sparc/mm/loadmmu.c linux/arch/sparc/mm/loadmmu.c
@@ -1,16 +1,38 @@
-/* loadmmu.c:  This code loads up all the mm function pointers once the
+/* $Id: loadmmu.c,v 1.13 1995/11/25 00:59:24 davem Exp $
+ * loadmmu.c:  This code loads up all the mm function pointers once the
  *             machine type has been determined.  It also sets the static
  *             mmu values such as PAGE_NONE, etc.
  *
  * Copyright (C) 1995 David S. Miller (davem@caip.rutgers.edu)
  */
 
+#include <linux/kernel.h>
+
 #include <asm/system.h>
 #include <asm/page.h>
 #include <asm/pgtable.h>
 
+struct ctx_list *ctx_list_pool;
+struct ctx_list ctx_free;
+struct ctx_list ctx_used;
+
+void (*mmu_exit_hook)(void *);
+void (*mmu_fork_hook)(void *, unsigned long);
+void (*mmu_release_hook)(void *);
+void (*mmu_flush_hook)(void *);
+void (*mmu_task_cacheflush)(void *);
+
+char *(*mmu_lockarea)(char *, unsigned long);
+void  (*mmu_unlockarea)(char *, unsigned long);
+char *(*mmu_get_scsi_buffer)(char *, unsigned long);
+void  (*mmu_release_scsi_buffer)(char *, unsigned long);
+
+
+int (*get_fault_info)(unsigned long *, unsigned long *, unsigned long);
+void (*update_mmu_cache)(struct vm_area_struct *vma, unsigned long address, pte_t pte);
+
 void (*invalidate)(void);
-void (*set_pte)(pte_t *ptep, pte_t entry);
+void (*set_pte)(pte_t *pteptr, pte_t pteval);
 
 unsigned int pmd_shift, pmd_size, pmd_mask;
 unsigned int (*pmd_align)(unsigned int);
@@ -21,14 +43,13 @@
 pgprot_t page_none, page_shared, page_copy, page_readonly, page_kernel;
 pgprot_t page_invalid;
 
-/* Grrr... function pointers galore... */
 unsigned long (*pte_page)(pte_t);
 unsigned long (*pmd_page)(pmd_t);
 unsigned long (*pgd_page)(pgd_t);
 
 void (*sparc_update_rootmmu_dir)(struct task_struct *, pgd_t *pgdir);
 unsigned long (*(vmalloc_start))(void);
-void (*switch_to_context)(int);
+void (*switch_to_context)(void *vtask);
 
 int (*pte_none)(pte_t);
 int (*pte_present)(pte_t);
@@ -51,9 +72,9 @@
 void (*pgd_reuse)(pgd_t *);
 
 pte_t (*mk_pte)(unsigned long, pgprot_t);
-void (*pgd_set)(pgd_t *, pte_t *);
+void (*pgd_set)(pgd_t *, pmd_t *);
 pte_t (*pte_modify)(pte_t, pgprot_t);
-pgd_t * (*pgd_offset)(struct task_struct *, unsigned long);
+pgd_t * (*pgd_offset)(struct mm_struct *, unsigned long);
 pmd_t * (*pmd_offset)(pgd_t *, unsigned long);
 pte_t * (*pte_offset)(pmd_t *, unsigned long);
 void (*pte_free_kernel)(pte_t *);
@@ -70,10 +91,6 @@
 
 pgd_t * (*pgd_alloc)(void);
 
-/*
- * The following only work if pte_present() is true.
- * Undefined behaviour if not..
- */
 int (*pte_read)(pte_t);
 int (*pte_write)(pte_t);
 int (*pte_exec)(pte_t);
@@ -94,6 +111,9 @@
 pte_t (*pte_mkyoung)(pte_t);
 pte_t (*pte_mkcow)(pte_t);
 
+unsigned long (*sparc_virt_to_phys)(unsigned long);
+unsigned long (*sparc_phys_to_virt)(unsigned long);
+
 extern void ld_mmu_sun4c(void);
 extern void ld_mmu_srmmu(void);
 
@@ -110,10 +130,9 @@
 		ld_mmu_srmmu();
 		break;
 	default:
-		printk("load_mmu:  MMU support not available for this architecture\n");
-		printk("load_mmu:  sparc_cpu_model = %d\n", (int) sparc_cpu_model);
-		printk("load_mmu:  Halting...\n");
-		halt();
+		printk("load_mmu:MMU support not available for this architecture\n");
+		printk("load_mmu:sparc_cpu_model = %d\n", (int) sparc_cpu_model);
+		printk("load_mmu:Halting...\n");
+		panic("load_mmu()");
 	};
-	return;
 }