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authorSam Ravnborg <sam@ravnborg.org>2011-04-21 15:46:21 -0700
committerDavid S. Miller <davem@davemloft.net>2011-04-21 15:46:21 -0700
commit9c2853af1fcbe01a123d666aa373e99119148ee6 (patch)
tree0637d31fe5080a2b3bec0dec8102f323b63934a0
parentcb1b8209815594613650772eeb889c170107dad4 (diff)
sparc32: probe for cpu info only during startup
We did a cpu_probe() call each time a CPU got online - which only effect was to save latest CPU/FPU info for use by show_cpuinfo(). Use same setup as for sparc64 where we probe for this info during startup, and only once. This allowed us to annotate a few functions __init which again fixed the following section mismatch warnings: WARNING: vmlinux.o(.text+0x65f0): Section mismatch in reference from the function set_cpu_and_fpu() to the (unknown reference) .init.rodata:(unknown) WARNING: vmlinux.o(.text+0x65f8): Section mismatch in reference from the function set_cpu_and_fpu() to the (unknown reference) .init.rodata:(unknown) WARNING: vmlinux.o(.text+0x664c): Section mismatch in reference from the function set_cpu_and_fpu() to the variable .init.rodata:manufacturer_info WARNING: vmlinux.o(.text+0x6650): Section mismatch in reference from the function set_cpu_and_fpu() to the variable .init.rodata:manufacturer_info Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: David S. Miller <davem@davemloft.net>
-rw-r--r--arch/sparc/include/asm/leon.h1
-rw-r--r--arch/sparc/kernel/cpu.c12
-rw-r--r--arch/sparc/kernel/devices.c2
-rw-r--r--arch/sparc/kernel/leon_smp.c2
-rw-r--r--arch/sparc/kernel/sun4d_smp.c2
-rw-r--r--arch/sparc/kernel/sun4m_smp.c2
6 files changed, 8 insertions, 13 deletions
diff --git a/arch/sparc/include/asm/leon.h b/arch/sparc/include/asm/leon.h
index 31fb2ac77af..f1598ca255f 100644
--- a/arch/sparc/include/asm/leon.h
+++ b/arch/sparc/include/asm/leon.h
@@ -343,7 +343,6 @@ extern void leon_smp_done(void);
extern void leon_boot_cpus(void);
extern int leon_boot_one_cpu(int i);
void leon_init_smp(void);
-extern void cpu_probe(void);
extern void cpu_idle(void);
extern void init_IRQ(void);
extern void cpu_panic(void);
diff --git a/arch/sparc/kernel/cpu.c b/arch/sparc/kernel/cpu.c
index c3483c71aa0..138dbbc8dc8 100644
--- a/arch/sparc/kernel/cpu.c
+++ b/arch/sparc/kernel/cpu.c
@@ -258,7 +258,7 @@ static const char *sparc_fpu_type;
const char *sparc_pmu_type;
-static void set_cpu_and_fpu(int psr_impl, int psr_vers, int fpu_vers)
+static void __init set_cpu_and_fpu(int psr_impl, int psr_vers, int fpu_vers)
{
const struct manufacturer_info *manuf;
int i;
@@ -434,7 +434,7 @@ const struct seq_operations cpuinfo_op = {
};
#ifdef CONFIG_SPARC32
-void __cpuinit cpu_probe(void)
+static int __init cpu_type_probe(void)
{
int psr_impl, psr_vers, fpu_vers;
int psr;
@@ -453,8 +453,12 @@ void __cpuinit cpu_probe(void)
put_psr(psr);
set_cpu_and_fpu(psr_impl, psr_vers, fpu_vers);
+
+ return 0;
}
-#else
+#endif /* CONFIG_SPARC32 */
+
+#ifdef CONFIG_SPARC64
static void __init sun4v_cpu_probe(void)
{
switch (sun4v_chip_type) {
@@ -495,6 +499,6 @@ static int __init cpu_type_probe(void)
}
return 0;
}
+#endif /* CONFIG_SPARC64 */
early_initcall(cpu_type_probe);
-#endif
diff --git a/arch/sparc/kernel/devices.c b/arch/sparc/kernel/devices.c
index d2eddd6647c..12aff23beb9 100644
--- a/arch/sparc/kernel/devices.c
+++ b/arch/sparc/kernel/devices.c
@@ -20,7 +20,6 @@
#include <asm/system.h>
#include <asm/cpudata.h>
-extern void cpu_probe(void);
extern void clock_stop_probe(void); /* tadpole.c */
extern void sun4c_probe_memerr_reg(void);
@@ -133,7 +132,6 @@ void __init device_scan(void)
}
#endif /* !CONFIG_SMP */
- cpu_probe();
{
extern void auxio_probe(void);
extern void auxio_power_probe(void);
diff --git a/arch/sparc/kernel/leon_smp.c b/arch/sparc/kernel/leon_smp.c
index 053eca9f78e..b4059dbb6d9 100644
--- a/arch/sparc/kernel/leon_smp.c
+++ b/arch/sparc/kernel/leon_smp.c
@@ -94,8 +94,6 @@ void __cpuinit leon_callin(void)
local_flush_cache_all();
local_flush_tlb_all();
- cpu_probe();
-
/* Fix idle thread fields. */
__asm__ __volatile__("ld [%0], %%g6\n\t" : : "r"(&current_set[cpuid])
: "memory" /* paranoid */);
diff --git a/arch/sparc/kernel/sun4d_smp.c b/arch/sparc/kernel/sun4d_smp.c
index 475d50b96cd..38423a05ae4 100644
--- a/arch/sparc/kernel/sun4d_smp.c
+++ b/arch/sparc/kernel/sun4d_smp.c
@@ -80,8 +80,6 @@ void __cpuinit smp4d_callin(void)
local_flush_cache_all();
local_flush_tlb_all();
- cpu_probe();
-
while ((unsigned long)current_set[cpuid] < PAGE_OFFSET)
barrier();
diff --git a/arch/sparc/kernel/sun4m_smp.c b/arch/sparc/kernel/sun4m_smp.c
index 58b8d849674..5545d10d50c 100644
--- a/arch/sparc/kernel/sun4m_smp.c
+++ b/arch/sparc/kernel/sun4m_smp.c
@@ -59,8 +59,6 @@ void __cpuinit smp4m_callin(void)
local_flush_cache_all();
local_flush_tlb_all();
- cpu_probe();
-
/* Fix idle thread fields. */
__asm__ __volatile__("ld [%0], %%g6\n\t"
: : "r" (&current_set[cpuid])