diff options
| author | Ralf Baechle <ralf@linux-mips.org> | 2008-10-29 12:33:34 +0000 |
|---|---|---|
| committer | Ralf Baechle <ralf@linux-mips.org> | 2008-10-30 14:44:34 +0000 |
| commit | 558ce12494e9e0321b77b9f1ef62c16d0b893cf5 (patch) | |
| tree | b8ebd80ade7f49e43aed728766cb85691aecdf2e /arch/mips/kernel/cpu-probe.c | |
| parent | ba3049ed4086737dab200b6087138a4b8e06915d (diff) | |
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>
Diffstat (limited to 'arch/mips/kernel/cpu-probe.c')
| -rw-r--r-- | arch/mips/kernel/cpu-probe.c | 22 |
1 files changed, 12 insertions, 10 deletions
diff --git a/arch/mips/kernel/cpu-probe.c b/arch/mips/kernel/cpu-probe.c index 0cf15457eca..41a1d07b475 100644 --- 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; |