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Tue, 26 Aug 2025 10:05:04 +0000 (GMT) Message-ID: Date: Tue, 26 Aug 2025 15:35:03 +0530 X-Mailing-List: linuxppc-dev@lists.ozlabs.org List-Id: List-Help: List-Owner: List-Post: List-Archive: , List-Subscribe: , , List-Unsubscribe: Precedence: list MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v7 0/8] sched/fair: Get rid of sched_domains_curr_level hack for tl->cpumask() To: K Prateek Nayak , Peter Zijlstra Cc: Dietmar Eggemann , Steven Rostedt , Ben Segall , Mel Gorman , Valentin Schneider , thomas.weissschuh@linutronix.de, Li Chen , Bibo Mao , Mete Durlu , Tobias Huschle , Easwar Hariharan , Guo Weikang , "Rafael J. Wysocki" , Brian Gerst , Patryk Wlazlyn , Swapnil Sapkal , "Yury Norov [NVIDIA]" , Sudeep Holla , Jonathan Cameron , Andrea Righi , Yicong Yang , Ricardo Neri , Tim Chen , Vinicius Costa Gomes , Madhavan Srinivasan , Michael Ellerman , Nicholas Piggin , Christophe Leroy , Heiko Carstens , Vasily Gorbik , Alexander Gordeev , Christian Borntraeger , Sven Schnelle , Thomas Gleixner , Ingo Molnar , Borislav Petkov , Dave Hansen , x86@kernel.org, "H. Peter Anvin" , Juri Lelli , Vincent Guittot , linuxppc-dev@lists.ozlabs.org, linux-kernel@vger.kernel.org, linux-s390@vger.kernel.org References: <20250826041319.1284-1-kprateek.nayak@amd.com> From: Shrikanth Hegde Content-Language: en-US In-Reply-To: <20250826041319.1284-1-kprateek.nayak@amd.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-TM-AS-GCONF: 00 X-Proofpoint-GUID: uGQuBa1nC4_TybwDa_PF212jwdXWPegi X-Proofpoint-Spam-Details-Enc: AW1haW4tMjUwODIzMDAyMSBTYWx0ZWRfXxUR18LG6id+8 cifRDYAQOr1tXWx9SgcNQM6dWtDCpd6fZoA9ntMZMFc3a9etCqoFE7WvzJfIpYpPezhSUFgz2Qq wMaFsKnj4v5s/OI0GC1S7TyDdxJa2HFqaEbxkjcoc0P7W5kvLnkJZSpZsgh1kEwBTi5XKTfncVh x4TZUgi6iJedAUGPUI4PpUra8S58w7I/JCreN1vo7yqE7LNa1WzgM69ZI36f1fd9R40XaeDV0Jm wvjjwPsre0pom2Xn1oZtB+qNBFXG13X1cDeG3qjDt1zxKUSywd00dSqKQq26DxqqWXerOxyNp1i 4mxSRZO0qHuBaN71FSfwhkFpXqd9q1S0zH1E8+p9Y9/P706KNzy02GMiorLUtGnrT4fo7cm5/kU 61CxWupl X-Proofpoint-ORIG-GUID: yP65Ia-GiOKTqCIl4llIBnzZIDcWEbSZ X-Authority-Analysis: v=2.4 cv=SNNCVPvH c=1 sm=1 tr=0 ts=68ad86df cx=c_pps a=GFwsV6G8L6GxiO2Y/PsHdQ==:117 a=GFwsV6G8L6GxiO2Y/PsHdQ==:17 a=IkcTkHD0fZMA:10 a=2OwXVqhp2XgA:10 a=VwQbUJbxAAAA:8 a=WsHKUha7AAAA:8 a=zd2uoN0lAAAA:8 a=eqgBTtMHAimxLhlMCKkA:9 a=QEXdDO2ut3YA:10 a=H4LAKuo8djmI0KOkngUh:22 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1099,Hydra:6.1.9,FMLib:17.12.80.40 definitions=2025-08-26_02,2025-08-26_01,2025-03-28_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 spamscore=0 adultscore=0 bulkscore=0 phishscore=0 clxscore=1015 impostorscore=0 malwarescore=0 suspectscore=0 priorityscore=1501 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.19.0-2507300000 definitions=main-2508230021 On 8/26/25 9:43 AM, K Prateek Nayak wrote: > This version uses Peter's suggestion from [1] as if and incrementally > adds cleanup on top to the arch/ bits. I've tested the x86 side but the > PowerPC and the s390 bits are only build tested. Review and feedback is > greatly appreciated. > > [1] https://lore.kernel.org/lkml/20250825091910.GT3245006@noisy.programming.kicks-ass.net/ > > Patches are prepared on top of tip:master at commit 4628e5bbca91 ("Merge > branch into tip/master: 'x86/tdx'") > --- > changelog v6..v7: > > o Fix the s390 and ppc build errors (Intel test robot) > > o Use Peter's diff as is and incrementally do the cleanup on top. The > PowerPC part was slightly more extensive due to the lack of > CONFIG_SCHED_MC in arch/powerpc/Kconfig. > > v6: https://lore.kernel.org/lkml/20250825120244.11093-1-kprateek.nayak@amd.com/ > --- > K Prateek Nayak (7): > powerpc/smp: Rename cpu_corgroup_* to cpu_corgrp_* > powerpc/smp: Export cpu_coregroup_mask() > powerpc/smp: Introduce CONFIG_SCHED_MC to guard MC scheduling bits > sched/topology: Unify tl_smt_mask() across core and all arch > sched/topology: Unify tl_cls_mask() across core and x86 > sched/topology: Unify tl_mc_mask() across core and all arch > sched/topology: Unify tl_pkg_mask() across core and all arch > > Peter Zijlstra (1): > sched/fair: Get rid of sched_domains_curr_level hack for tl->cpumask() > Can the names be standardized to begin with tl_ ? arch/powerpc/kernel/smp.c: SDTL_INIT(smallcore_smt_mask, powerpc_smt_flags, SMT); arch/powerpc/kernel/smp.c: SDTL_INIT(shared_cache_mask, powerpc_shared_cache_flags, CACHE); arch/s390/kernel/topology.c: SDTL_INIT(cpu_book_mask, NULL, BOOK), arch/s390/kernel/topology.c: SDTL_INIT(cpu_drawer_mask, NULL, DRAWER), kernel/sched/topology.c: tl[i++] = SDTL_INIT(sd_numa_mask, NULL, NODE); kernel/sched/topology.c: tl[i] = SDTL_INIT(sd_numa_mask, cpu_numa_flags, NUMA);