#include <asm/mipsregs.h>
#include <asm/system.h>
+static char bug64hit[] __initdata =
+ "reliable operation impossible!\n%s";
+static char nowar[] __initdata =
+ "Please report to <linux-mips@linux-mips.org>.";
+static char r4kwar[] __initdata =
+ "Enable CPU_R4000_WORKAROUNDS to rectify.";
+static char daddiwar[] __initdata =
+ "Enable CPU_DADDI_WORKAROUNDS to rectify.";
+
static inline void align_mod(const int align, const int mod)
{
asm volatile(
".endr\n\t"
".set pop"
:
- : GCC_IMM_ASM(align), GCC_IMM_ASM(mod));
+ : GCC_IMM_ASM() (align), GCC_IMM_ASM() (mod));
}
static inline void mult_sh_align_mod(long *v1, long *v2, long *w,
}
printk("no.\n");
- panic("Reliable operation impossible!\n"
-#ifndef CONFIG_CPU_R4000
- "Configure for R4000 to enable the workaround."
-#else
- "Please report to <linux-mips@linux-mips.org>."
-#endif
- );
+ panic(bug64hit, !R4000_WAR ? r4kwar : nowar);
}
-static volatile int daddi_ov __initdata = 0;
+static volatile int daddi_ov __cpuinitdata = 0;
asmlinkage void __init do_daddi_ov(struct pt_regs *regs)
{
}
printk("no.\n");
- panic("Reliable operation impossible!\n"
-#if !defined(CONFIG_CPU_R4000) && !defined(CONFIG_CPU_R4400)
- "Configure for R4000 or R4400 to enable the workaround."
-#else
- "Please report to <linux-mips@linux-mips.org>."
-#endif
- );
+ panic(bug64hit, !DADDI_WAR ? daddiwar : nowar);
}
+int daddiu_bug __cpuinitdata = -1;
+
static inline void check_daddiu(void)
{
long v, w, tmp;
: "=&r" (v), "=&r" (w), "=&r" (tmp)
: "I" (0xffffffffffffdb9aUL), "I" (0x1234));
- if (v == w) {
+ daddiu_bug = v != w;
+
+ if (!daddiu_bug) {
printk("no.\n");
return;
}
}
printk("no.\n");
- panic("Reliable operation impossible!\n"
-#if !defined(CONFIG_CPU_R4000) && !defined(CONFIG_CPU_R4400)
- "Configure for R4000 or R4400 to enable the workaround."
-#else
- "Please report to <linux-mips@linux-mips.org>."
-#endif
- );
+ panic(bug64hit, !DADDI_WAR ? daddiwar : nowar);
}
-void __init check_bugs64(void)
+void __init check_bugs64_early(void)
{
check_mult_sh();
- check_daddi();
check_daddiu();
}
+
+void __init check_bugs64(void)
+{
+ check_daddi();
+}