From: Keith Owens <kaos@ocs.com.au>
To: linux-ia64@vger.kernel.org
Subject: Re: [PATCH] save parameter registers and restore them for jprobe handling
Date: Thu, 01 Dec 2005 02:37:17 +0000 [thread overview]
Message-ID: <6119.1133404637@kao2.melbourne.sgi.com> (raw)
In-Reply-To: <8126E4F969BA254AB43EA03C59F44E84040B3BF4@pdsmsx404>
On Thu, 1 Dec 2005 10:28:09 +0800,
"Zhang, Yanmin" <yanmin.zhang@intel.com> wrote:
>Content-Transfer-Encoding: base64
Why base64 encoding for the patch?
+/*Invalidate stacked registers outside the current frame*/
+#define invalidate_stacked_regs() { \
+ unsigned long rsc_save = 0; \
+ asm volatile("mov %0=ar.rsc;;\n\t" \
+ "mov ar.rsc=0;;\n\t" \
+ "{\n\tloadrs;;\n\t\n\t\n\t}\n\t" \
+ "mov ar.rsc=%1\n\t" \
+ :"=r" (rsc_save):"r" (rsc_save):"memory"); \
+ }
+
We try to avoid inline asm in the .c files, it makes it harder to
compile the kernel with Intel compilers.
next prev parent reply other threads:[~2005-12-01 2:37 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-12-01 2:28 [PATCH] save parameter registers and restore them for jprobe handling Zhang, Yanmin
2005-12-01 2:37 ` Keith Owens [this message]
2005-12-01 5:19 ` Zhang, Yanmin
2005-12-01 19:25 ` Chen, Kenneth W
2005-12-01 20:06 ` Keshavamurthy Anil S
2005-12-02 2:29 ` Zhang, Yanmin
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