commit 9c2853af1fcbe01a123d666aa373e99119148ee6
author Sam Ravnborg <sam@ravnborg.org> Thu Apr 21 15:46:21 2011 -0700
committer David S. Miller <davem@davemloft.net> Thu Apr 21 15:46:21 2011 -0700
tree 0637d31fe5080a2b3bec0dec8102f323b63934a0
parent cb1b8209815594613650772eeb889c170107dad4

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>

arch/sparc/kernel/cpu.c

diff --git a/arch/sparc/kernel/cpu.c b/arch/sparc/kernel/cpu.c
index c3483c7..138dbbc 100644
--- a/arch/sparc/kernel/cpu.c
+++ b/arch/sparc/kernel/cpu.c
@@ -258,7 +258,7 @@
 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 @@
 };
 
 #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 @@
 	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 @@
 	}
 	return 0;
 }
+#endif /* CONFIG_SPARC64 */
 
 early_initcall(cpu_type_probe);
-#endif

arch/sparc/kernel/devices.c

diff --git a/arch/sparc/kernel/devices.c b/arch/sparc/kernel/devices.c
index d2eddd6..12aff23 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 @@
 	}
 #endif /* !CONFIG_SMP */
 
-	cpu_probe();
 	{
 		extern void auxio_probe(void);
 		extern void auxio_power_probe(void);

arch/sparc/kernel/leon_smp.c

diff --git a/arch/sparc/kernel/leon_smp.c b/arch/sparc/kernel/leon_smp.c
index 053eca9..b4059db 100644
--- a/arch/sparc/kernel/leon_smp.c
+++ b/arch/sparc/kernel/leon_smp.c
@@ -94,8 +94,6 @@
 	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 */);

arch/sparc/kernel/sun4d_smp.c

diff --git a/arch/sparc/kernel/sun4d_smp.c b/arch/sparc/kernel/sun4d_smp.c
index 475d50b..38423a0 100644
--- a/arch/sparc/kernel/sun4d_smp.c
+++ b/arch/sparc/kernel/sun4d_smp.c
@@ -80,8 +80,6 @@
 	local_flush_cache_all();
 	local_flush_tlb_all();
 
-	cpu_probe();
-
 	while ((unsigned long)current_set[cpuid] < PAGE_OFFSET)
 		barrier();
 

arch/sparc/kernel/sun4m_smp.c

diff --git a/arch/sparc/kernel/sun4m_smp.c b/arch/sparc/kernel/sun4m_smp.c
index 58b8d84..5545d10 100644
--- a/arch/sparc/kernel/sun4m_smp.c
+++ b/arch/sparc/kernel/sun4m_smp.c
@@ -59,8 +59,6 @@
 	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])