Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1760203AbXHOMxd (ORCPT ); Wed, 15 Aug 2007 08:53:33 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1760285AbXHOMvq (ORCPT ); Wed, 15 Aug 2007 08:51:46 -0400 Received: from mx1.redhat.com ([66.187.233.31]:54854 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1760256AbXHOMvp (ORCPT ); Wed, 15 Aug 2007 08:51:45 -0400 From: Glauber de Oliveira Costa To: linux-kernel@vger.kernel.org Cc: akpm@linux-foundation.org, rusty@rustcorp.com.au, ak@suse.de, mingo@elte.hu, chrisw@sous-sol.org, jeremy@goop.org, avi@qumranet.com, anthony@codemonkey.ws, virtualization@lists.linux-foundation.org, lguest@ozlabs.org, glommer@gmail.com, Glauber de Oliveira Costa , Steven Rostedt Subject: [PATCH 8/25][V3] use macro for sti/cli in spinlock definitions Date: Wed, 15 Aug 2007 09:49:28 -0300 Message-Id: <1187182268408-git-send-email-gcosta@redhat.com> X-Mailer: git-send-email 1.5.0.6 In-Reply-To: <1187182253740-git-send-email-gcosta@redhat.com> References: <11871821854176-git-send-email-gcosta@redhat.com> <1187182197314-git-send-email-gcosta@redhat.com> <11871822062386-git-send-email-gcosta@redhat.com> <11871822163867-git-send-email-gcosta@redhat.com> <11871822244170-git-send-email-gcosta@redhat.com> <11871822342754-git-send-email-gcosta@redhat.com> <11871822421713-git-send-email-gcosta@redhat.com> <1187182253740-git-send-email-gcosta@redhat.com> Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1908 Lines: 64 This patch switches the cli and sti instructions into macros. In this header, they're just defined to the instructions they refer to. Later on, when paravirt is defined, they will be defined to something with paravirt abilities. Signed-off-by: Glauber de Oliveira Costa Signed-off-by: Steven Rostedt --- include/asm-x86_64/spinlock.h | 16 +++++++++++++--- 1 files changed, 13 insertions(+), 3 deletions(-) diff --git a/include/asm-x86_64/spinlock.h b/include/asm-x86_64/spinlock.h index 88bf981..5bb5bf8 100644 --- a/include/asm-x86_64/spinlock.h +++ b/include/asm-x86_64/spinlock.h @@ -5,6 +5,14 @@ #include #include #include +#ifdef CONFIG_PARAVIRT +#include +#else +#define CLI_STI_INPUT_ARGS +#define CLI_STI_CLOBBERS +#define CLI_STRING "cli" +#define STI_STRING "sti" +#endif /* * Your basic SMP spinlocks, allowing only a single CPU anywhere @@ -48,12 +56,12 @@ static inline void __raw_spin_lock_flags(raw_spinlock_t *lock, unsigned long fla "jns 5f\n" "testl $0x200, %1\n\t" /* interrupts were disabled? */ "jz 4f\n\t" - "sti\n" + STI_STRING "\n\t" "3:\t" "rep;nop\n\t" "cmpl $0, %0\n\t" "jle 3b\n\t" - "cli\n\t" + CLI_STRING "\n\t" "jmp 1b\n" "4:\t" "rep;nop\n\t" @@ -61,7 +69,9 @@ static inline void __raw_spin_lock_flags(raw_spinlock_t *lock, unsigned long fla "jg 1b\n\t" "jmp 4b\n" "5:\n\t" - : "+m" (lock->slock) : "r" ((unsigned)flags) : "memory"); + : "+m" (lock->slock) + : "r" ((unsigned)flags) CLI_STI_INPUT_ARGS + : "memory" CLI_STI_CLOBBERS); } #endif -- 1.4.4.2 - 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/