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- /* include/asm-sparc/bugs.h: Sparc probes for various bugs.
- *
- * Copyright (C) 1994 David S. Miller (davem@caip.rutgers.edu)
- */
-
- /*
- * This is included by init/main.c to check for architecture-dependent bugs.
- *
- * Needs:
- * void check_bugs(void);
- */
-
- #define CONFIG_BUGSPARC
-
- #include <asm/openprom.h>
-
- extern struct linux_romvec *romvec;
- extern int tbase_needs_unmapping; /* We do the bug workaround in pagetables.c */
-
- static void check_mmu(void)
- {
- register struct linux_romvec *lvec;
- register int root_node;
- unsigned int present;
-
- lvec = romvec;
-
- root_node = (*(romvec->pv_nodeops->no_nextnode))(0);
- tbase_needs_unmapping=0;
-
- present = 0;
- (*(romvec->pv_nodeops->no_getprop))(root_node, "buserr-type",
- (char *) &present);
- if(present == 1)
- {
- tbase_needs_unmapping=1;
- printk("MMU bug found: not allowing trapbase to be cached\n");
- }
-
- return;
- }
-
-
- static void
- check_bugs(void)
- {
- check_mmu();
- }
-