[PATCH] cell: enable pause(0) in cpu_idle
This patch enables support for pause(0) power management state
for the Cell Broadband Processor, which is import for power efficient
operation. The pervasive infrastructure will in the future enable
us to introduce more functionality specific to the Cell's
pervasive unit.
From: Maximino Aguilar <maguilar@us.ibm.com>
Signed-off-by: Arnd Bergmann <arndb@de.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
diff --git a/arch/powerpc/kernel/cputable.c b/arch/powerpc/kernel/cputable.c
index f7f2a83..2f82a20 100644
--- a/arch/powerpc/kernel/cputable.c
+++ b/arch/powerpc/kernel/cputable.c
@@ -273,7 +273,7 @@
.oprofile_model = &op_model_power4,
#endif
},
- { /* BE DD1.x */
+ { /* Cell Broadband Engine */
.pvr_mask = 0xffff0000,
.pvr_value = 0x00700000,
.cpu_name = "Cell Broadband Engine",
diff --git a/arch/powerpc/kernel/traps.c b/arch/powerpc/kernel/traps.c
index 6c79346..7509aa6 100644
--- a/arch/powerpc/kernel/traps.c
+++ b/arch/powerpc/kernel/traps.c
@@ -230,8 +230,10 @@
void system_reset_exception(struct pt_regs *regs)
{
/* See if any machine dependent calls */
- if (ppc_md.system_reset_exception)
- ppc_md.system_reset_exception(regs);
+ if (ppc_md.system_reset_exception) {
+ if (ppc_md.system_reset_exception(regs))
+ return;
+ }
die("System Reset", regs, SIGABRT);