MIPS: Probe for watch registers on cores of all vendors, not just MTI.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Acked-by: David Daney <ddaney@caviumnetworks.com>

diff --git a/arch/mips/kernel/cpu-probe.c b/arch/mips/kernel/cpu-probe.c
index 0cf1545..41a1d07 100644 (file)
--- a/arch/mips/kernel/cpu-probe.c
+++ b/arch/mips/kernel/cpu-probe.c
@@ -652,21 +652,24 @@ static inline unsigned int decode_config3(struct cpuinfo_mips *c)
 
 static void __cpuinit decode_configs(struct cpuinfo_mips *c)
 {
+       int ok;
+
        /* MIPS32 or MIPS64 compliant CPU.  */
        c->options = MIPS_CPU_4KEX | MIPS_CPU_4K_CACHE | MIPS_CPU_COUNTER |
                     MIPS_CPU_DIVEC | MIPS_CPU_LLSC | MIPS_CPU_MCHECK;
 
        c->scache.flags = MIPS_CACHE_NOT_PRESENT;
 
-       /* Read Config registers.  */
-       if (!decode_config0(c))
-               return;                 /* actually worth a panic() */
-       if (!decode_config1(c))
-               return;
-       if (!decode_config2(c))
-               return;
-       if (!decode_config3(c))
-               return;
+       ok = decode_config0(c);                 /* Read Config registers.  */
+       BUG_ON(!ok);                            /* Arch spec violation!  */
+       if (ok)
+               ok = decode_config1(c);
+       if (ok)
+               ok = decode_config2(c);
+       if (ok)
+               ok = decode_config3(c);
+
+       mips_probe_watch_registers(c);
 }
 
 #ifdef CONFIG_CPU_MIPSR2
@@ -678,7 +681,6 @@ static inline void spram_config(void) {}
 static inline void cpu_probe_mips(struct cpuinfo_mips *c)
 {
        decode_configs(c);
-       mips_probe_watch_registers(c);
        switch (c->processor_id & 0xff00) {
        case PRID_IMP_4KC:
                c->cputype = CPU_4KC;