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authorMichael Ellerman <michael@ellerman.id.au>2005-07-07 17:56:30 -0700
committerLinus Torvalds <torvalds@g5.osdl.org>2005-07-07 18:23:41 -0700
commit62d60e9f0f890c31e5a83a7d8ecdfd1c7975fdb9 (patch)
tree840653ffa74b54ec277630116355d161ab076679 /arch
parent[PATCH] ppc64: Move pSeries idle functions into pSeries_setup.c (diff)
downloadlinux-dev-62d60e9f0f890c31e5a83a7d8ecdfd1c7975fdb9.tar.xz
linux-dev-62d60e9f0f890c31e5a83a7d8ecdfd1c7975fdb9.zip
[PATCH] ppc64: Fixup platforms for new ppc_md.idle
This patch fixes up iSeries, pSeries, pmac and maple to set the correct idle function for each platform. Signed-off-by: Michael Ellerman <michael@ellerman.id.au> Signed-off-by: Anton Blanchard <anton@samba.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'arch')
-rw-r--r--arch/ppc64/kernel/iSeries_setup.c1
-rw-r--r--arch/ppc64/kernel/maple_setup.c3
-rw-r--r--arch/ppc64/kernel/pSeries_setup.c18
-rw-r--r--arch/ppc64/kernel/pmac_setup.c5
4 files changed, 26 insertions, 1 deletions
diff --git a/arch/ppc64/kernel/iSeries_setup.c b/arch/ppc64/kernel/iSeries_setup.c
index 1139e27e1713..fae215ea54b4 100644
--- a/arch/ppc64/kernel/iSeries_setup.c
+++ b/arch/ppc64/kernel/iSeries_setup.c
@@ -940,5 +940,6 @@ void __init iSeries_early_setup(void)
ppc_md.get_rtc_time = iSeries_get_rtc_time;
ppc_md.calibrate_decr = iSeries_calibrate_decr;
ppc_md.progress = iSeries_progress;
+ ppc_md.idle_loop = iSeries_idle;
}
diff --git a/arch/ppc64/kernel/maple_setup.c b/arch/ppc64/kernel/maple_setup.c
index da8900b51f40..bb55b5a56910 100644
--- a/arch/ppc64/kernel/maple_setup.c
+++ b/arch/ppc64/kernel/maple_setup.c
@@ -177,6 +177,8 @@ void __init maple_setup_arch(void)
#ifdef CONFIG_DUMMY_CONSOLE
conswitchp = &dummy_con;
#endif
+
+ printk(KERN_INFO "Using native/NAP idle loop\n");
}
/*
@@ -297,4 +299,5 @@ struct machdep_calls __initdata maple_md = {
.get_rtc_time = maple_get_rtc_time,
.calibrate_decr = generic_calibrate_decr,
.progress = maple_progress,
+ .idle_loop = native_idle,
};
diff --git a/arch/ppc64/kernel/pSeries_setup.c b/arch/ppc64/kernel/pSeries_setup.c
index 849ed9ba7856..3f3be8ae9351 100644
--- a/arch/ppc64/kernel/pSeries_setup.c
+++ b/arch/ppc64/kernel/pSeries_setup.c
@@ -19,6 +19,7 @@
#undef DEBUG
#include <linux/config.h>
+#include <linux/cpu.h>
#include <linux/errno.h>
#include <linux/sched.h>
#include <linux/kernel.h>
@@ -82,6 +83,9 @@ int fwnmi_active; /* TRUE if an FWNMI handler is present */
extern void pSeries_system_reset_exception(struct pt_regs *regs);
extern int pSeries_machine_check_exception(struct pt_regs *regs);
+static int shared_idle(void);
+static int dedicated_idle(void);
+
static volatile void __iomem * chrp_int_ack_special;
struct mpic *pSeries_mpic;
@@ -229,6 +233,20 @@ static void __init pSeries_setup_arch(void)
if (cur_cpu_spec->firmware_features & FW_FEATURE_SPLPAR)
vpa_init(boot_cpuid);
+
+ /* Choose an idle loop */
+ if (cur_cpu_spec->firmware_features & FW_FEATURE_SPLPAR) {
+ if (get_paca()->lppaca.shared_proc) {
+ printk(KERN_INFO "Using shared processor idle loop\n");
+ ppc_md.idle_loop = shared_idle;
+ } else {
+ printk(KERN_INFO "Using dedicated idle loop\n");
+ ppc_md.idle_loop = dedicated_idle;
+ }
+ } else {
+ printk(KERN_INFO "Using default idle loop\n");
+ ppc_md.idle_loop = default_idle;
+ }
}
static int __init pSeries_init_panel(void)
diff --git a/arch/ppc64/kernel/pmac_setup.c b/arch/ppc64/kernel/pmac_setup.c
index 6cf03d387b91..3013cdb5f933 100644
--- a/arch/ppc64/kernel/pmac_setup.c
+++ b/arch/ppc64/kernel/pmac_setup.c
@@ -186,6 +186,8 @@ void __init pmac_setup_arch(void)
#ifdef CONFIG_DUMMY_CONSOLE
conswitchp = &dummy_con;
#endif
+
+ printk(KERN_INFO "Using native/NAP idle loop\n");
}
#ifdef CONFIG_SCSI
@@ -507,5 +509,6 @@ struct machdep_calls __initdata pmac_md = {
.calibrate_decr = pmac_calibrate_decr,
.feature_call = pmac_do_feature_call,
.progress = pmac_progress,
- .check_legacy_ioport = pmac_check_legacy_ioport
+ .check_legacy_ioport = pmac_check_legacy_ioport,
+ .idle_loop = native_idle,
};