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Fri, 02 Oct 2026 16:46:49 +0000 (GMT) Received: from smtpav01.fra02v.mail.ibm.com (smtpav01.fra02v.mail.ibm.com [10.20.54.100]) by smtprelay07.fra02v.mail.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id 692GkkdO49021256 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Fri, 2 Oct 2026 16:46:46 GMT Received: from smtpav01.fra02v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id EA76120043; Fri, 2 Oct 2026 16:46:45 +0000 (GMT) Received: from smtpav01.fra02v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 385B320040; Fri, 2 Oct 2026 16:46:42 +0000 (GMT) Received: from li-7bb28a4c-2dab-11b2-a85c-887b5c60d769.ibm.com.com (unknown [9.124.216.180]) by smtpav01.fra02v.mail.ibm.com (Postfix) with ESMTP; Fri, 2 Oct 2026 16:46:41 +0000 (GMT) From: Shrikanth Hegde To: maddy@linux.ibm.com, linuxppc-dev@lists.ozlabs.org Cc: sshegde@linux.ibm.com, mpe@ellerman.id.au, npiggin@gmail.com, christophe.leroy@csgroup.eu, linux-kernel@vger.kernel.org, ritesh.list@gmail.com, peterz@infradead.org, boqun@kernel.org, will@kernel.org, jhladky@redhat.com, paulmck@kernel.org Subject: [RFC 3/3] powerpc64/Kconfig: Enable HAS_SEPARATE_PREEMPT_RESCHED_BITS Date: Fri, 2 Oct 2026 22:16:19 +0530 Message-ID: <20261002164619.1455143-4-sshegde@linux.ibm.com> X-Mailer: git-send-email 2.54.0 In-Reply-To: <20261002164619.1455143-1-sshegde@linux.ibm.com> References: <20261002164619.1455143-1-sshegde@linux.ibm.com> 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 Content-Transfer-Encoding: 8bit X-TM-AS-GCONF: 00 X-Proofpoint-Reinject: loops=2 maxloops=12 X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYxMDAyMDA2NiBTYWx0ZWRfX7wox3UP2nfKp K4dS4xuGtrkquQh5ctiHIx7fRbbSoAk2qPHQAFRCuZoz0mGb8yLTaVTUX0Y0KtEbx+UUkBSXaUC ipZg8eKiN87iw6kwDqJgw9/3IMYTsRai4R7XE62Jtt4Xr02nESV9FukSURmDuf/SdFHXaGnazLi yTGppKDQ8wno84IdPkPScWHaUx/Up+n0IHyJJYLNkX5nvR7PIrz46MauOpqhqhMXEIdCEVn6ICe vJBrp9okXj4vxvQqZpeOuBgY9bAgKy6jVZrlZpjVxJZjvBfX7qwcZBtLNQZXic1AEnZPJ3C98Tz BhUlSp9bN+umOCVGGVyhhPGtztQIPSsTnOs7CCBS2wdPtUoaQ9qo7sDUYpq8wgcGsUFMaXzPDeR Tm0vZUCremwlqKPE6XIlrKBt5sO5w4xqmpUff/zo/Hajuf7U8G2BplPbVYou713e6Unp1it06W2 gHScddoQk2OUh+lntuw== X-Authority-Analysis: v=2.4 cv=SPbXx+vH c=1 sm=1 tr=0 ts=6abfdffb cx=c_pps a=GFwsV6G8L6GxiO2Y/PsHdQ==:117 a=GFwsV6G8L6GxiO2Y/PsHdQ==:17 a=660iZSQnnn4A:10 a=VkNPw1HP01LnGYTKEx00:22 a=RnoormkPH1_aCDwRdu11:22 a=uAbxVGIbfxUO_5tXvNgY:22 a=VnNF1IyMAAAA:8 a=xiQKgxPxu2hnmYXuNjUA:9 X-Proofpoint-ORIG-GUID: plB92gha4kximmyTXrMo5pmNuC2fB3SE X-Proofpoint-Spam-Info: AW1haW4tMjYxMDAyMDA2NiBTYWx0ZWRfX/H6nYZomwEf1 c56cCdRwXILlcIWGVqsQsh92uOWQQzH49LlETClqaqbTbm9Q0kIa1jaxIPZr6jRwj9SxH9mGtH4 lyxlKmvm7daK2zlWuK71tBi44eWn+DM= X-Proofpoint-GUID: PvwQXvnxG5GyDoODfo9vdNwabt--mtlj X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1176,Hydra:6.1.134,FMLib:17.12.100.49 definitions=2026-10-02_04,2026-10-02_01,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 priorityscore=1501 suspectscore=0 clxscore=1015 spamscore=0 lowpriorityscore=0 malwarescore=0 adultscore=0 bulkscore=0 impostorscore=0 phishscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2609040000 definitions=main-2610020066 Now there is separate need resched bit, enable the generic config of HAS_SEPARATE_PREEMPT_RESCHED_BITS. This would make use of higher bits of preempt count(29-32bits) for NMI bits. Signed-off-by: Shrikanth Hegde --- arch/powerpc/Kconfig | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig index 143381d267ce..001bb2f3eec1 100644 --- a/arch/powerpc/Kconfig +++ b/arch/powerpc/Kconfig @@ -215,6 +215,7 @@ config PPC select GENERIC_PCI_IOMAP if PCI select GENERIC_SMP_IDLE_THREAD select HAS_IOPORT if PCI + select HAS_SEPARATE_PREEMPT_RESCHED_BITS if PPC64 select HAVE_ARCH_AUDITSYSCALL select HAVE_ARCH_HUGE_VMALLOC if HAVE_ARCH_HUGE_VMAP select HAVE_ARCH_HUGE_VMAP if PPC_RADIX_MMU || PPC_8xx -- 2.52.0