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dmarc=fail (p=none dis=none) header.from=arm.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:Content-Type: Content-Transfer-Encoding:List-Subscribe:List-Help:List-Post:List-Archive: List-Unsubscribe:List-Id:In-Reply-To:MIME-Version:Date:Message-ID:From: References:Cc:To:Subject:Reply-To:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=xVREIFlUqEvj0tSdJVl0f9vS+A2ctBTHKJqklrMCrKI=; b=chNd8CtzILKM1mMi5zcH0nWpln 3GsMf4SLhz5JznYpdvQoK7gV+IWQpefxh/jlw5T2o4iHHH+r3f0aRXtUCc2RzezilveYQdeyvu7C0 brpSSov3ceuZTjr0fCHSvq/8eu0d2e8ClT+5cKn/4/R/gX6cNOQWYUOHVKH65WLDhtfW9SPfEey7v 51g8i/N7HC4pGEVf7w1VSCkJuUA4pYlSEnRVgv+bkTcD+Xhbp57xlkxUvfBrkDMx9peYX6bQxQhpg P7182G4MSjaM+XRAEsSndIU+8sPePG/Nqumqxf6af3NI6tsH/tYIPDmgDBjeSQRM6oxH0zjDBAslo OMCiJIng==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1mM4zE-00BLZM-2K; Fri, 03 Sep 2021 08:55:48 +0000 Received: from foss.arm.com ([217.140.110.172]) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1mM4z9-00BLY9-SM for linux-arm-kernel@lists.infradead.org; Fri, 03 Sep 2021 08:55:45 +0000 Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 1C2D9D6E; Fri, 3 Sep 2021 01:55:41 -0700 (PDT) Received: from [10.57.92.220] (unknown [10.57.92.220]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id DE1CF3F694; Fri, 3 Sep 2021 01:55:38 -0700 (PDT) Subject: Re: [PATCH v2 2/9] perf cs-etm: Initialise architecture based on TRCIDR1 To: James Clark , mathieu.poirier@linaro.org, leo.yan@linaro.org, coresight@lists.linaro.org, linux-perf-users@vger.kernel.org, mike.leach@linaro.org Cc: acme@kernel.org, John Garry , Will Deacon , Mark Rutland , Alexander Shishkin , Jiri Olsa , Namhyung Kim , linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org References: <20210806134109.1182235-1-james.clark@arm.com> <20210806134109.1182235-3-james.clark@arm.com> From: Suzuki K Poulose Message-ID: Date: Fri, 3 Sep 2021 09:55:37 +0100 User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:78.0) Gecko/20100101 Thunderbird/78.13.0 MIME-Version: 1.0 In-Reply-To: <20210806134109.1182235-3-james.clark@arm.com> Content-Language: en-GB X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20210903_015544_037304_A78D9A34 X-CRM114-Status: GOOD ( 20.62 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Transfer-Encoding: 7bit Content-Type: text/plain; charset="us-ascii"; Format="flowed" Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On 06/08/2021 14:41, James Clark wrote: > Currently the architecture is hard coded as ARCH_V8, but from ETMv4.4 > onwards this should be ARCH_AA64. > > Signed-off-by: James Clark > --- > tools/perf/util/cs-etm-decoder/cs-etm-decoder.c | 16 +++++++++++++++- > 1 file changed, 15 insertions(+), 1 deletion(-) > > diff --git a/tools/perf/util/cs-etm-decoder/cs-etm-decoder.c b/tools/perf/util/cs-etm-decoder/cs-etm-decoder.c > index 187c038caa19..787b19642e78 100644 > --- a/tools/perf/util/cs-etm-decoder/cs-etm-decoder.c > +++ b/tools/perf/util/cs-etm-decoder/cs-etm-decoder.c > @@ -126,6 +126,20 @@ static int cs_etm_decoder__gen_etmv3_config(struct cs_etm_trace_params *params, > return 0; > } > > +#define TRCIDR1_TRCARCHMIN_SHIFT 4 > +#define TRCIDR1_TRCARCHMIN_MASK GENMASK(7, 4) > +#define TRCIDR1_TRCARCHMIN(x) (((x) & TRCIDR1_TRCARCHMIN_MASK) >> TRCIDR1_TRCARCHMIN_SHIFT) minor nit: Please add a blank line here > +static enum _ocsd_arch_version cs_etm_decoder__get_etmv4_arch_ver(u32 reg_idr1) > +{ > + /* > + * For ETMv4 if the trace minor version is 4 or more then we can assume > + * the architecture is ARCH_AA64 rather than just V8. > + * ARCH_V8 = V8 architecture > + * ARCH_AA64 = Min v8r3 plus additional AA64 PE features Does this need to be >= 3 then, to be accurate ? The comment "reads", minimum v8.3 and any additional features. Otherwise looks good to me. Suzuki _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel