From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from e28smtp08.in.ibm.com (e28smtp08.in.ibm.com [122.248.162.8]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client CN "e28smtp08.in.ibm.com", Issuer "GeoTrust SSL CA" (not verified)) by ozlabs.org (Postfix) with ESMTPS id 68F592C0151 for ; Wed, 17 Apr 2013 14:01:09 +1000 (EST) Received: from /spool/local by e28smtp08.in.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! Violators will be prosecuted for from ; Wed, 17 Apr 2013 09:25:18 +0530 Received: from d28relay05.in.ibm.com (d28relay05.in.ibm.com [9.184.220.62]) by d28dlp01.in.ibm.com (Postfix) with ESMTP id 54064E0054 for ; Wed, 17 Apr 2013 09:32:55 +0530 (IST) Received: from d28av03.in.ibm.com (d28av03.in.ibm.com [9.184.220.65]) by d28relay05.in.ibm.com (8.13.8/8.13.8/NCO v10.0) with ESMTP id r3H40s8Y66388198 for ; Wed, 17 Apr 2013 09:30:55 +0530 Received: from d28av03.in.ibm.com (loopback [127.0.0.1]) by d28av03.in.ibm.com (8.14.4/8.13.1/NCO v10.0 AVout) with ESMTP id r3H40vf8021779 for ; Wed, 17 Apr 2013 14:00:58 +1000 Message-ID: <516E1E6C.2040106@linux.vnet.ibm.com> Date: Wed, 17 Apr 2013 09:30:44 +0530 From: Anshuman Khandual MIME-Version: 1.0 To: Segher Boessenkool Subject: Re: [PATCH V2 2/5] powerpc, perf: Add basic assembly code to read BHRB entries on POWER8 References: <1366127650-1952-1-git-send-email-khandual@linux.vnet.ibm.com> <1366127650-1952-3-git-send-email-khandual@linux.vnet.ibm.com> In-Reply-To: Content-Type: text/plain; charset=ISO-8859-1 Cc: linuxppc-dev@ozlabs.org, mikey@neuling.org, linux-kernel@vger.kernel.org List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , On 04/16/2013 10:53 PM, Segher Boessenkool wrote: >> +/* r3 = n (where n = [0-1023]) >> + * The maximum number of BHRB entries supported with PPC_MFBHRBE >> instruction >> + * is 1024. We have limited number of table entries here as POWER8 >> implements >> + * 32 BHRB entries. >> + */ >> + >> +/* .global read_bhrb */ >> +_GLOBAL(read_bhrb) >> + cmpldi r3,1023 > > This should be 31, since that is the last entry in the table below. Hey Segher, Would fix this in the next version. Thanks for pointing it out. Regards Anshuman