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Violators will be prosecuted; (version=TLSv1/SSLv3 cipher=AES256-GCM-SHA384 bits=256/256) Wed, 10 Oct 2018 12:29:05 -0600 Received: from b03ledav003.gho.boulder.ibm.com (b03ledav003.gho.boulder.ibm.com [9.17.130.234]) by b03cxnp07029.gho.boulder.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id w9AIT4dH40960100 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=FAIL); Wed, 10 Oct 2018 11:29:04 -0700 Received: from b03ledav003.gho.boulder.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 03A8B6A04F; Wed, 10 Oct 2018 12:29:04 -0600 (MDT) Received: from b03ledav003.gho.boulder.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 317646A047; Wed, 10 Oct 2018 12:29:03 -0600 (MDT) Received: from oc5000245537.ibm.com (unknown [9.85.239.181]) by b03ledav003.gho.boulder.ibm.com (Postfix) with ESMTP; Wed, 10 Oct 2018 12:29:02 -0600 (MDT) Subject: Re: [PATCH v04 3/4] migration/memory: Evaluate LMB assoc changes To: Nathan Fontenot , linuxppc-dev@lists.ozlabs.org References: <20181009203520.26091.86781.stgit@ltcalpine2-lp9.aus.stglabs.ibm.com> <20181009203651.26091.63890.stgit@ltcalpine2-lp9.aus.stglabs.ibm.com> From: Michael Bringmann Openpgp: preference=signencrypt Autocrypt: addr=mwb@linux.vnet.ibm.com; prefer-encrypt=mutual; keydata= xsBNBFcY7GcBCADzw3en+yzo9ASFGCfldVkIg95SAMPK0myXp2XJYET3zT45uBsX/uj9/2nA lBmXXeOSXnPfJ9V3vtiwcfATnWIsVt3tL6n1kqikzH9nXNxZT7MU/7gqzWZngMAWh/GJ9qyg DTOZdjsvdUNUWxtiLvBo7y+reA4HjlQhwhYxxvCpXBeRoF0qDWfQ8DkneemqINzDZPwSQ7zY t4F5iyN1I9GC5RNK8Y6jiKmm6bDkrrbtXPOtzXKs0J0FqWEIab/u3BDrRP3STDVPdXqViHua AjEzthQbGZm0VCxI4a7XjMi99g614/qDcXZCs00GLZ/VYIE8hB9C5Q+l66S60PLjRrxnABEB AAHNLU1pY2hhZWwgVy4gQnJpbmdtYW5uIDxtd2JAbGludXgudm5ldC5pYm0uY29tPsLAeAQT AQIAIgUCVxjsZwIbAwYLCQgHAwIGFQgCCQoLBBYCAwECHgECF4AACgkQSEdag3dpuTI0NAf8 CKYTDKQLgOSjVrU2L5rM4lXaJRmQV6oidD3vIhKSnWRvPq9C29ifRG6ri20prTHAlc0vycgm 41HHg0y2vsGgNXGTWC2ObemoZBI7mySXe/7Tq5mD/semGzOp0YWZ7teqrkiSR8Bw0p+LdE7K QmT7tpjjvuhrtQ3RRojUYcuy1nWUsc4D+2cxsnZslsx84FUKxPbLagDgZmgBhUw/sUi40s6S AkdViVCVS0WANddLIpG0cfdsV0kCae/XdjK3mRK6drFKv1z+QFjvOhc8QIkkxFD0da9w3tJj oqnqHFV5gLcHO6/wizPx/NV90y6RngeBORkQiRFWxTXS4Oj9GVI/Us7ATQRXGOxnAQgAmJ5Y ikTWrMWPfiveUacETyEhWVl7u8UhZcx3yy2te8O0ay7t9fYcZgIEfQPPVVus89acIXlG3wYL DDPvb21OprLxi+ZJ2a0S5we+LcSWN1jByxJlbWBq+/LcMtGAOhNLpysY1gD0Y4UW/eKS+TFZ 562qKC3k1dBvnV9JXCgeS1taYFxRdVAn+2DwK3nuyG/DDq/XgJ5BtmyC3MMx8CiW3POj+O+l 6SedIeAfZlZ7/xhijx82g93h07VavUQRwMZgZFsqmuxBxVGiav2HB+dNvs3PFB087Pvc9OHe qhajPWOP/gNLMmvBvknn1NToM9a8/E8rzcIZXoYs4RggRRYh6wARAQABwsBfBBgBAgAJBQJX GOxnAhsMAAoJEEhHWoN3abky+RUH/jE08/r5QzaNKYeVhu0uVbgXu5fsxqr2cAxhf+KuwT3T efhEP2alarxzUZdEh4MsG6c+X2NYLbD3cryiXxVx/7kSAJEFQJfA5P06g8NLR25Qpq9BLsN7 ++dxQ+CLKzSEb1X24hYAJZpOhS8ev3ii+M/XIo+olDBKuTaTgB6elrg3CaxUsVgLBJ+jbRkW yQe2S5f/Ja1ThDpSSLLWLiLK/z7+gaqwhnwjQ8Z8Y9D2itJQcj4itHilwImsqwLG7SxzC0NX IQ5KaAFYdRcOgwR8VhhkOIVd70ObSZU+E4pTET1WDz4o65xZ89yfose1No0+r5ht/xWOOrh8 53/hcWvxHVs= Organization: IBM Linux Technology Center Date: Wed, 10 Oct 2018 13:29:02 -0500 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.9.1 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit X-TM-AS-GCONF: 00 x-cbid: 18101018-0016-0000-0000-0000093F2656 X-IBM-SpamModules-Scores: X-IBM-SpamModules-Versions: BY=3.00009855; HX=3.00000242; KW=3.00000007; PH=3.00000004; SC=3.00000268; SDB=6.01100731; UDB=6.00569528; IPR=6.00880779; MB=3.00023699; MTD=3.00000008; XFM=3.00000015; UTC=2018-10-10 18:29:06 X-IBM-AV-DETECTION: SAVI=unused REMOTE=unused XFE=unused x-cbparentid: 18101018-0017-0000-0000-000040A80CE5 Message-Id: X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:, , definitions=2018-10-10_11:, , signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 priorityscore=1501 malwarescore=0 suspectscore=0 phishscore=0 bulkscore=0 spamscore=0 clxscore=1015 lowpriorityscore=0 mlxscore=0 impostorscore=0 mlxlogscore=999 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1807170000 definitions=main-1810100172 X-BeenThere: linuxppc-dev@lists.ozlabs.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Juliet Kim , Thomas Falcon , Tyrel Datwyler Errors-To: linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Sender: "Linuxppc-dev" On 10/10/2018 12:24 PM, Nathan Fontenot wrote: > On 10/09/2018 03:37 PM, Michael Bringmann wrote: > >> +static void pseries_update_ala_memory_aai(int aa_index) >> +{ >> + struct drmem_lmb *lmb; >> + >> + /* Readd all LMBs which were previously using the >> + * specified aa_index value. >> + */ >> + for_each_drmem_lmb(lmb) { >> + if ((lmb->aa_index == aa_index) && >> + (lmb->flags & DRCONF_MEM_ASSIGNED)) { >> + drmem_mark_lmb_update(lmb); >> + dlpar_memory_pmt_changes_set(); >> + } >> + } >> +} >> + >> +struct assoc_arrays { >> + u32 n_arrays; >> + u32 array_sz; >> + const __be32 *arrays; >> +}; > > This struct is also defined in arch/powerpc/mm/numa.c. May be a good idea to move the > definition to common place. Moving to topology.h in arch/powerpc/include/asm. > >> + >> +static int pseries_update_ala_memory(struct of_reconfig_data *pr) >> +{ >> + struct assoc_arrays new_ala, old_ala; >> + __be32 *p; >> + int i, lim; >> + >> + if (rtas_hp_event) >> + return 0; >> + >> + /* >> + * The layout of the ibm,associativity-lookup-arrays >> + * property is a number N indicating the number of >> + * associativity arrays, followed by a number M >> + * indicating the size of each associativity array, >> + * followed by a list of N associativity arrays. >> + */ >> + >> + p = (__be32 *) pr->old_prop->value; >> + if (!p) >> + return -EINVAL; >> + old_ala.n_arrays = of_read_number(p++, 1); >> + old_ala.array_sz = of_read_number(p++, 1); >> + old_ala.arrays = p; >> + >> + p = (__be32 *) pr->prop->value; >> + if (!p) >> + return -EINVAL; >> + new_ala.n_arrays = of_read_number(p++, 1); >> + new_ala.array_sz = of_read_number(p++, 1); >> + new_ala.arrays = p; >> + >> + lim = (new_ala.n_arrays > old_ala.n_arrays) ? old_ala.n_arrays : >> + new_ala.n_arrays; >> + >> + if (old_ala.array_sz == new_ala.array_sz) { >> + >> + /* Reset any entries where the old and new rows >> + * the array have changed. > > Small nit, the wording in that comment could be clearer. Right. > > -Nathan Michael -- Michael W. Bringmann Linux Technology Center IBM Corporation Tie-Line 363-5196 External: (512) 286-5196 Cell: (512) 466-0650 mwb@linux.vnet.ibm.com