From 718340f62900ed44046d2b0f74d0dec7cf844194 Mon Sep 17 00:00:00 2001 From: Graf Yang Date: Mon, 1 Feb 2010 06:07:50 +0000 Subject: Blackfin: rewrite resync_core_{i,d}cache() SMP logic to avoid per_cpu data This functions are implicitly called by core functions like cpu_relax(), and since those functions may be called early on before common code has initialized the per-cpu data area, we need to tweak the stats gathering. Now the statistics are maintained in common bss which makes these funcs safe to use as soon as the C runtime env is setup. Signed-off-by: Graf Yang Signed-off-by: Mike Frysinger --- arch/blackfin/include/asm/cpu.h | 2 -- arch/blackfin/include/asm/smp.h | 7 +++++++ 2 files changed, 7 insertions(+), 2 deletions(-) (limited to 'arch/blackfin/include') diff --git a/arch/blackfin/include/asm/cpu.h b/arch/blackfin/include/asm/cpu.h index b191dc662bd8..16883e582e3c 100644 --- a/arch/blackfin/include/asm/cpu.h +++ b/arch/blackfin/include/asm/cpu.h @@ -17,8 +17,6 @@ struct blackfin_cpudata { struct task_struct *idle; unsigned int imemctl; unsigned int dmemctl; - unsigned long dcache_invld_count; - unsigned long icache_invld_count; }; DECLARE_PER_CPU(struct blackfin_cpudata, cpu_data); diff --git a/arch/blackfin/include/asm/smp.h b/arch/blackfin/include/asm/smp.h index 7f26de09ca9c..f5b537967116 100644 --- a/arch/blackfin/include/asm/smp.h +++ b/arch/blackfin/include/asm/smp.h @@ -24,6 +24,13 @@ struct corelock_slot { }; extern struct corelock_slot corelock; +#ifdef __ARCH_SYNC_CORE_ICACHE +extern unsigned long icache_invld_count[NR_CPUS]; +#endif +#ifdef __ARCH_SYNC_CORE_DCACHE +extern unsigned long dcache_invld_count[NR_CPUS]; +#endif + void smp_icache_flush_range_others(unsigned long start, unsigned long end); #ifdef CONFIG_HOTPLUG_CPU -- cgit v1.2.3