Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1759193AbYJQAAv (ORCPT ); Thu, 16 Oct 2008 20:00:51 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1756711AbYJPX4G (ORCPT ); Thu, 16 Oct 2008 19:56:06 -0400 Received: from smtp.polymtl.ca ([132.207.4.11]:48958 "EHLO smtp.polymtl.ca" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1757607AbYJPX4E (ORCPT ); Thu, 16 Oct 2008 19:56:04 -0400 Message-Id: <20081016234656.055839676@polymtl.ca> References: <20081016232729.699004293@polymtl.ca> User-Agent: quilt/0.46-1 Date: Thu, 16 Oct 2008 19:27:33 -0400 From: Mathieu Desnoyers To: Linus Torvalds , Andrew Morton , Ingo Molnar , linux-kernel@vger.kernel.org, linux-arch@vger.kernel.org, Steven Rostedt , Peter Zijlstra , Thomas Gleixner Cc: David Miller , Mathieu Desnoyers , benh@kernel.crashing.org, paulus@samba.org, Ingo Molnar Subject: [RFC patch 04/15] get_cycles() : powerpc64 HAVE_GET_CYCLES Content-Disposition: inline; filename=get-cycles-powerpc-have-get-cycles.patch X-Poly-FromMTA: (test.casi.polymtl.ca [132.207.72.60]) at Thu, 16 Oct 2008 23:54:44 +0000 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2239 Lines: 64 This patch selects HAVE_GET_CYCLES and makes sure get_cycles_barrier() and get_cycles_rate() are implemented. Signed-off-by: Mathieu Desnoyers CC: benh@kernel.crashing.org CC: paulus@samba.org CC: David Miller CC: Linus Torvalds CC: Andrew Morton CC: Ingo Molnar CC: Peter Zijlstra CC: Thomas Gleixner CC: Steven Rostedt CC: linux-arch@vger.kernel.org --- arch/powerpc/Kconfig | 1 + arch/powerpc/include/asm/timex.h | 13 +++++++++++++ 2 files changed, 14 insertions(+) Index: linux-2.6-lttng/arch/powerpc/Kconfig =================================================================== --- linux-2.6-lttng.orig/arch/powerpc/Kconfig 2008-10-16 12:25:48.000000000 -0400 +++ linux-2.6-lttng/arch/powerpc/Kconfig 2008-10-16 12:33:31.000000000 -0400 @@ -122,6 +122,7 @@ config PPC select HAVE_DMA_ATTRS if PPC64 select USE_GENERIC_SMP_HELPERS if SMP select HAVE_OPROFILE + select HAVE_GET_CYCLES if PPC64 config EARLY_PRINTK bool Index: linux-2.6-lttng/arch/powerpc/include/asm/timex.h =================================================================== --- linux-2.6-lttng.orig/arch/powerpc/include/asm/timex.h 2008-10-16 12:25:48.000000000 -0400 +++ linux-2.6-lttng/arch/powerpc/include/asm/timex.h 2008-10-16 12:33:58.000000000 -0400 @@ -46,5 +46,18 @@ static inline cycles_t get_cycles(void) #endif } +static inline cycles_t get_cycles_rate(void) +{ + return CLOCK_TICK_RATE; +} + +/* + * To check : assuming mtfb requires isync to synchronize instruction execution. + */ +static inline void get_cycles_barrier(void) +{ + isync(); +} + #endif /* __KERNEL__ */ #endif /* _ASM_POWERPC_TIMEX_H */ -- Mathieu Desnoyers Computer Engineering Ph.D. Student, Ecole Polytechnique de Montreal OpenPGP key fingerprint: 8CD5 52C3 8E3C 4140 715F BA06 3F25 A8FE 3BAE 9A68 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/