From: Michael Ellerman <michael@ellerman.id.au>
Date: Thu, 25 Apr 2013 19:28:27 +0000 (+0000)
Subject: powerpc/perf: Add support for SIER
X-Git-Tag: omap-for-v3.10/dt-fixes-for-merge-window~66^2~36
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=8f61aa325fab3a40b7c847bd35601ad99d7959c9;p=pandora-kernel.git

powerpc/perf: Add support for SIER

On power8 we have a new SIER (Sampled Instruction Event Register), which
captures information about instructions when we have random sampling
enabled.

Add support for loading the SIER into pt_regs, overloading regs->dar.
Also set the new NO_SIPR flag in regs->result if we don't have SIPR.

Update regs_sihv/sipr() to look for SIPR/SIHV in SIER.

Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Acked-by: Paul Mackerras <paulus@samba.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
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