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author | 2011-04-21 15:46:21 -0700 | |
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committer | 2011-04-21 15:46:21 -0700 | |
commit | 9c2853af1fcbe01a123d666aa373e99119148ee6 (patch) | |
tree | 0637d31fe5080a2b3bec0dec8102f323b63934a0 | |
parent | sparc: consolidate show_cpuinfo in cpu.c (diff) | |
download | linux-9c2853af1fcbe01a123d666aa373e99119148ee6.tar.gz linux-9c2853af1fcbe01a123d666aa373e99119148ee6.tar.bz2 linux-9c2853af1fcbe01a123d666aa373e99119148ee6.zip |
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.h | 1 | ||||
-rw-r--r-- | arch/sparc/kernel/cpu.c | 12 | ||||
-rw-r--r-- | arch/sparc/kernel/devices.c | 2 | ||||
-rw-r--r-- | arch/sparc/kernel/leon_smp.c | 2 | ||||
-rw-r--r-- | arch/sparc/kernel/sun4d_smp.c | 2 | ||||
-rw-r--r-- | arch/sparc/kernel/sun4m_smp.c | 2 |
6 files changed, 8 insertions, 13 deletions
diff --git a/arch/sparc/include/asm/leon.h b/arch/sparc/include/asm/leon.h index 31fb2ac77afa..f1598ca255f0 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 c3483c71aa04..138dbbc8dc84 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 d2eddd6647cd..12aff23beb94 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 053eca9f78e9..b4059dbb6d93 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"(¤t_set[cpuid]) : "memory" /* paranoid */); diff --git a/arch/sparc/kernel/sun4d_smp.c b/arch/sparc/kernel/sun4d_smp.c index 475d50b96cd0..38423a05ae41 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 58b8d849674c..5545d10d50cd 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" (¤t_set[cpuid]) |