diff options
| author | Hugh Dickins <hugh@veritas.com> | 2006-11-01 05:44:54 +1100 |
|---|---|---|
| committer | Paul Mackerras <paulus@samba.org> | 2007-10-03 11:48:44 +1000 |
| commit | 048c8bc90e53bf1f5feec020a7d482da94894e93 (patch) | |
| tree | 6ca0891ac3320706873006104cde3d4e1039bcfc /include/asm-powerpc/io.h | |
| parent | 5669c3cf19fbadaa9120b59914beec8431277efe (diff) | |
| download | lwn-048c8bc90e53bf1f5feec020a7d482da94894e93.tar.gz lwn-048c8bc90e53bf1f5feec020a7d482da94894e93.zip | |
[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 <hugh@veritas.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Diffstat (limited to 'include/asm-powerpc/io.h')
| -rw-r--r-- | include/asm-powerpc/io.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/include/asm-powerpc/io.h b/include/asm-powerpc/io.h index 6805efb2cb6d..affba7052fb6 100644 --- a/include/asm-powerpc/io.h +++ b/include/asm-powerpc/io.h @@ -86,7 +86,7 @@ extern unsigned long pci_dram_offset; */ #ifdef CONFIG_PPC64 -#define IO_SET_SYNC_FLAG() do { get_paca()->io_sync = 1; } while(0) +#define IO_SET_SYNC_FLAG() do { local_paca->io_sync = 1; } while(0) #else #define IO_SET_SYNC_FLAG() #endif |