From 048c8bc90e53bf1f5feec020a7d482da94894e93 Mon Sep 17 00:00:00 2001 From: Hugh Dickins Date: Wed, 1 Nov 2006 05:44:54 +1100 Subject: [POWERPC] ppc64: support CONFIG_DEBUG_PREEMPT Add CONFIG_DEBUG_PREEMPT support to ppc64: it was useful for testing get_paca() preemption. Cheat a little, just use debug_smp_processor_id() in the debug version of get_paca(): it contains all the right checks and reporting, though get_paca() doesn't really use smp_processor_id(). Use local_paca for what might have been called __raw_get_paca(). Silence harmless warnings from io.h and lparcfg.c with local_paca - it is okay for iseries_lparcfg_data to be referencing shared_proc with preemption enabled: all cpus should show the same value for shared_proc. Why do other architectures need TRACE_IRQFLAGS_SUPPORT for DEBUG_PREEMPT? I don't know, ppc64 appears to get along fine without it. Signed-off-by: Hugh Dickins Signed-off-by: Paul Mackerras --- include/asm-powerpc/smp.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'include/asm-powerpc/smp.h') diff --git a/include/asm-powerpc/smp.h b/include/asm-powerpc/smp.h index d037f50580e..19102bfc14c 100644 --- a/include/asm-powerpc/smp.h +++ b/include/asm-powerpc/smp.h @@ -45,7 +45,7 @@ void generic_mach_cpu_die(void); #endif #ifdef CONFIG_PPC64 -#define raw_smp_processor_id() (get_paca()->paca_index) +#define raw_smp_processor_id() (local_paca->paca_index) #define hard_smp_processor_id() (get_paca()->hw_cpu_id) #else /* 32-bit */ -- cgit