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From: travis@sgi.com
To: Andrew Morton <akpm@linux-foundation.org>
Cc: Christoph Lameter <clameter@sgi.com>,
	linux-mm@kvack.org, linux-kernel@vger.kernel.org,
	Paul Mackerras <paulus@samba.org>
Subject: [PATCH 07/10] Powerpc: Use generic per cpu
Date: Thu, 27 Dec 2007 16:10:53 -0800	[thread overview]
Message-ID: <20071228001047.820421000@sgi.com> (raw)
In-Reply-To: <20071228001046.854702000@sgi.com>

[-- Attachment #1: power_generic_percpu --]
[-- Type: text/plain, Size: 1702 bytes --]

- add missing #endif

Powerpc has a way to determine the address of the per cpu area of the
currently executing processor via the paca and the array of per cpu
offsets is avoided by looking up the per cpu area from the remote
paca's (copying x86_64).

Cc: Paul Mackerras <paulus@samba.org>
Signed-off-by: Christoph Lameter <clameter@sgi.com>
Signed-off-by: Mike Travis <travis@sgi.com>

---
 include/asm-powerpc/percpu.h |   21 ++-------------------
 1 file changed, 2 insertions(+), 19 deletions(-)

--- a/include/asm-powerpc/percpu.h
+++ b/include/asm-powerpc/percpu.h
@@ -16,25 +16,8 @@
 #define __my_cpu_offset() get_paca()->data_offset
 #define per_cpu_offset(x) (__per_cpu_offset(x))
 
-/* var is in discarded region: offset to particular copy we want */
-#define per_cpu(var, cpu) (*RELOC_HIDE(&per_cpu__##var, __per_cpu_offset(cpu)))
-#define __get_cpu_var(var) (*RELOC_HIDE(&per_cpu__##var, __my_cpu_offset()))
-#define __raw_get_cpu_var(var) (*RELOC_HIDE(&per_cpu__##var, local_paca->data_offset))
-
-extern void setup_per_cpu_areas(void);
-
-#else /* ! SMP */
-
-#define per_cpu(var, cpu)			(*((void)(cpu), &per_cpu__##var))
-#define __get_cpu_var(var)			per_cpu__##var
-#define __raw_get_cpu_var(var)			per_cpu__##var
-
-#endif	/* SMP */
-
-#define DECLARE_PER_CPU(type, name) extern __typeof__(type) per_cpu__##name
-
-#else
+#endif /* CONFIG_SMP */
+#endif /* __powerpc64__ */
 #include <asm-generic/percpu.h>
-#endif
 
 #endif /* _ASM_POWERPC_PERCPU_H_ */

-- 

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  parent reply	other threads:[~2007-12-28  0:10 UTC|newest]

Thread overview: 27+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-12-28  0:10 [PATCH 00/10] percpu: Per cpu code simplification V2 travis
2007-12-28  0:10 ` [PATCH 01/10] percpu: Use a kconfig variable to signal arch specific percpu setup travis
2007-12-28  0:15   ` David Miller, travis
2007-12-28  0:10 ` [PATCH 02/10] percpu: Move arch XX_PER_CPU_XX definitions into linux/percpu.h travis
2007-12-28  0:16   ` David Miller, travis
2007-12-28  0:10 ` [PATCH 03/10] percpu: Make the asm-generic/percpu.h more "generic" travis
2007-12-28  0:18   ` David Miller, travis
2007-12-28  0:10 ` [PATCH 04/10] x86_32: Use generic percpu.h travis
2007-12-28  0:10 ` [PATCH 05/10] x86_64: Use generic percpu travis
2007-12-28 12:54   ` Andi Kleen
2007-12-28 22:05     ` Mike Travis
2007-12-29  1:55       ` Andi Kleen
2007-12-31 16:19         ` Mike Travis
2008-01-02 20:58         ` Christoph Lameter
2007-12-30 14:18       ` Ingo Molnar
2007-12-31 16:21         ` Mike Travis
2007-12-31 17:10           ` Mike Travis
2008-01-01 19:17             ` Ingo Molnar
2008-01-02 21:04               ` Christoph Lameter
2008-01-02 21:33                 ` Ingo Molnar
2008-01-02 20:59         ` Christoph Lameter
2008-01-02 20:55     ` Christoph Lameter
2007-12-28  0:10 ` [PATCH 06/10] s390: " travis
2007-12-28  0:10 ` travis [this message]
2007-12-28  0:16 [PATCH 00/10] percpu: Per cpu code simplification V2 travis
2007-12-28  0:16 ` [PATCH 07/10] Powerpc: Use generic per cpu travis
2008-01-08  2:11 [PATCH 00/10] percpu: Per cpu code simplification V3 travis
2008-01-08  2:11 ` [PATCH 07/10] Powerpc: Use generic per cpu travis
2008-01-08 21:10 [PATCH 00/10] percpu: Per cpu code simplification V4 travis
2008-01-08 21:10 ` [PATCH 07/10] Powerpc: Use generic per cpu travis

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