patch-2.4.7 linux/arch/mips/mm/loadmmu.c

• Lines: 149
• Date: Wed Jul 4 11:50:39 2001
• Orig file: v2.4.6/linux/arch/mips/mm/loadmmu.c
• Orig date: Sat May 13 08:29:14 2000

diff -u --recursive --new-file v2.4.6/linux/arch/mips/mm/loadmmu.c linux/arch/mips/mm/loadmmu.c
@@ -2,8 +2,8 @@
  * loadmmu.c: Setup cpu/cache specific function ptrs at boot time.
  *
  * Copyright (C) 1996 David S. Miller (dm@engr.sgi.com)
- *
- * $Id: loadmmu.c,v 1.17 2000/03/13 10:33:05 raiko Exp $
+ * Kevin D. Kissell, kevink@mips.com and Carsten Langgaard, carstenl@mips.com
+ * Copyright (C) 2000 MIPS Technologies, Inc.  All rights reserved.
  */
 #include <linux/config.h>
 #include <linux/init.h>
@@ -11,10 +11,11 @@
 #include <linux/sched.h>
 #include <linux/mm.h>
 
+#include <asm/bootinfo.h>
+#include <asm/cpu.h>
 #include <asm/page.h>
 #include <asm/pgtable.h>
 #include <asm/system.h>
-#include <asm/bootinfo.h>
 
 /* memory functions */
 void (*_clear_page)(void * page);
@@ -22,84 +23,79 @@
 
 /* Cache operations. */
 void (*_flush_cache_all)(void);
+void (*___flush_cache_all)(void);
 void (*_flush_cache_mm)(struct mm_struct *mm);
 void (*_flush_cache_range)(struct mm_struct *mm, unsigned long start,
 			  unsigned long end);
 void (*_flush_cache_page)(struct vm_area_struct *vma, unsigned long page);
 void (*_flush_cache_sigtramp)(unsigned long addr);
 void (*_flush_page_to_ram)(struct page * page);
+void (*_flush_icache_range)(unsigned long start, unsigned long end);
+void (*_flush_icache_page)(struct vm_area_struct *vma, struct page *page);
 
 /* DMA cache operations. */
 void (*_dma_cache_wback_inv)(unsigned long start, unsigned long size);
 void (*_dma_cache_wback)(unsigned long start, unsigned long size);
 void (*_dma_cache_inv)(unsigned long start, unsigned long size);
 
-#ifdef CONFIG_CPU_R3000
-extern void ld_mmu_r2300(void);
-#endif
-#if defined(CONFIG_CPU_R4X00) || defined(CONFIG_CPU_R4300) || \
-    defined(CONFIG_CPU_R5000) || defined(CONFIG_CPU_NEVADA)
+extern void ld_mmu_r23000(void);
 extern void ld_mmu_r4xx0(void);
-#endif
-#ifdef CONFIG_CPU_R6000
+extern void ld_mmu_r5432(void);
 extern void ld_mmu_r6000(void);
-#endif
-#ifdef CONFIG_CPU_R8000
+extern void ld_mmu_rm7k(void);
 extern void ld_mmu_tfp(void);
-#endif
-#ifdef CONFIG_CPU_R10000
 extern void ld_mmu_andes(void);
-#endif
+extern void ld_mmu_sb1(void);
+extern void ld_mmu_mips32(void);
 
 void __init loadmmu(void)
 {
-	switch(mips_cputype) {
-#ifdef CONFIG_CPU_R3000
-	case CPU_R2000:
-	case CPU_R3000:
-	case CPU_R3000A:
-	case CPU_R3081E:
-		printk("Loading R[23]00 MMU routines.\n");
-		ld_mmu_r2300();
-		break;
-#endif
 
+	if (mips_cpu.options & MIPS_CPU_4KTLB) {
 #if defined(CONFIG_CPU_R4X00) || defined(CONFIG_CPU_R4300) || \
     defined(CONFIG_CPU_R5000) || defined(CONFIG_CPU_NEVADA)
-	case CPU_R4000PC:
-	case CPU_R4000SC:
-	case CPU_R4000MC:
-	case CPU_R4200:
-	case CPU_R4300:
-	case CPU_R4400PC:
-	case CPU_R4400SC:
-	case CPU_R4400MC:
-	case CPU_R4600:
-	case CPU_R4640:
-	case CPU_R4650:
-	case CPU_R4700:
-	case CPU_R5000:
-	case CPU_R5000A:
-	case CPU_NEVADA:
 		printk("Loading R4000 MMU routines.\n");
 		ld_mmu_r4xx0();
-		break;
+#endif
+#if defined(CONFIG_CPU_RM7000)
+               printk("Loading RM7000 MMU routines.\n");
+               ld_mmu_rm7k();
+#endif
+#if defined(CONFIG_CPU_R5432)
+		printk("Loading R5432 MMU routines.\n");
+		ld_mmu_r5432();
 #endif
 
+#if defined(CONFIG_CPU_MIPS32)
+		printk("Loading MIPS32 MMU routines.\n");
+		ld_mmu_mips32();
+#endif
+	} else switch(mips_cpu.cputype) {
+#ifdef CONFIG_CPU_R3000
+	case CPU_R2000:
+	case CPU_R3000:
+	case CPU_R3000A:
+	case CPU_TX3912:
+	case CPU_TX3922:
+	case CPU_TX3927:
+	case CPU_R3081E:
+		printk("Loading R[23]000 MMU routines.\n");
+		ld_mmu_r23000();
+		break;
+#endif
 #ifdef CONFIG_CPU_R10000
 	case CPU_R10000:
 		printk("Loading R10000 MMU routines.\n");
 		ld_mmu_andes();
 		break;
 #endif
-
+#ifdef CONFIG_CPU_SB1
+	case CPU_SB1:
+		printk("Loading SB1 MMU routines.\n");
+		ld_mmu_sb1();
+		break;
+#endif
 	default:
-		/* XXX We need an generic routine in the MIPS port
-		 * XXX to jabber stuff onto the screen on all machines
-		 * XXX before the console is setup.  The ARCS prom
-		 * XXX routines look good for this, but only the SGI
-		 * XXX code has a full library for that at this time.
-		 */
 		panic("Yeee, unsupported mmu/cache architecture.");
 	}
 }