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Mon, 28 Apr 2025 15:23:48 GMT Received: from smtpav05.fra02v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id BA50A20040; Mon, 28 Apr 2025 15:23:48 +0000 (GMT) Received: from smtpav05.fra02v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id D822620043; Mon, 28 Apr 2025 15:23:42 +0000 (GMT) Received: from li-e1dea04c-3555-11b2-a85c-f57333552245.ibm.com.com (unknown [9.39.30.54]) by smtpav05.fra02v.mail.ibm.com (Postfix) with ESMTP; Mon, 28 Apr 2025 15:23:42 +0000 (GMT) From: Mukesh Kumar Chaurasiya To: linux-kernel@vger.kernel.org Cc: maddy@linux.ibm.com, mpe@ellerman.id.au, npiggin@gmail.com, christophe.leroy@csgroup.eu, naveen@kernel.org, neeraj.upadhyay@kernel.org, vschneid@redhat.com, tglx@linutronix.de, frederic@kernel.org, ankur.a.arora@oracle.com, sshegde@linux.ibm.com, bigeasy@linutronix.de, kees@kernel.org, oleg@redhat.com, peterz@infradead.org, tzimmermann@suse.de, namcao@linutronix.de, kan.liang@linux.intel.com, mcgrof@kernel.org, rppt@kernel.org, atrajeev@linux.vnet.ibm.com, anjalik@linux.ibm.com, coltonlewis@google.com, linuxppc-dev@lists.ozlabs.org, Mukesh Kumar Chaurasiya Subject: [RFC V1 4/6] powerpc: Add flag in paca for register restore state Date: Mon, 28 Apr 2025 20:52:25 +0530 Message-ID: <20250428152225.66044-7-mchauras@linux.ibm.com> X-Mailer: git-send-email 2.49.0 In-Reply-To: <20250428152225.66044-2-mchauras@linux.ibm.com> References: <20250428152225.66044-2-mchauras@linux.ibm.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-TM-AS-GCONF: 00 X-Proofpoint-GUID: O5prXhxbgXtqtZqsDc8dN7eMM6GyMqI7 X-Authority-Analysis: v=2.4 cv=GJYIEvNK c=1 sm=1 tr=0 ts=680f9d8a cx=c_pps a=aDMHemPKRhS1OARIsFnwRA==:117 a=aDMHemPKRhS1OARIsFnwRA==:17 a=XR8D0OoHHMoA:10 a=VnNF1IyMAAAA:8 a=Kj5IoVDe1b0y73Rl6aEA:9 X-Proofpoint-Spam-Details-Enc: AW1haW4tMjUwNDI4MDEyNCBTYWx0ZWRfX3z+ZrzZTIW9M 0SDDaMiu35cTYgSpqCmtsVuG3W5eho6YoeLFf9sPMzNfDuHUH0zAHzR5DEgqhdPUldsoB2qKl2J IWp3evivlyzAbWlyEx8rk4shVVtocD6yVuwNkV0PLjc3Q5U6D3q4t7R7wSLxfAaWsk5Bw+tjXd7 5damFaTR4KNq8F6OPKSjstBv0valRMsRFCAJ3Ilma7kmKlRBeU/EL73fTXkCyn50FyaH7y1UcKq yXAFCv30/Cp6cSZ31HmL8sA/kHJmvtFac53ZE+idA9OR7eU6adwwpAT0cyavPjcmaaDmnzSxV2/ D+UxMtfxNeJZTrgeGM2x3nbBDT+io3UnuhkH3p2IQNgkHLfp6Wz45ok+fHF0uLIvjPD2w7T2iJJ GI7nuv7u0e0IYdYbEiRv/ZJeVL3lTs/JwIA6srnqJ9jD+DV2/dvkmrMApElne7SQWquOwfzM X-Proofpoint-ORIG-GUID: Nu1XezD8osXlo9WblDfB_6U8i7CFyL2a X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1099,Hydra:6.0.736,FMLib:17.12.80.40 definitions=2025-04-28_05,2025-04-24_02,2025-02-21_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 malwarescore=0 spamscore=0 mlxscore=0 phishscore=0 impostorscore=0 suspectscore=0 priorityscore=1501 adultscore=0 clxscore=1015 bulkscore=0 lowpriorityscore=0 mlxlogscore=898 classifier=spam authscore=0 authtc=n/a authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.19.0-2504070000 definitions=main-2504280124 Content-Type: text/plain; charset="utf-8" In case of signal being processed we want to restore the GPRS. To save the = state of whether we need to restore the registers or not a flag is introduced so = that we can save the state for that cpu in case we want to save the register sta= te. Signed-off-by: Mukesh Kumar Chaurasiya --- arch/powerpc/include/asm/paca.h | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/powerpc/include/asm/paca.h b/arch/powerpc/include/asm/pac= a.h index 1d58da9467396..215cafd64d8f5 100644 --- a/arch/powerpc/include/asm/paca.h +++ b/arch/powerpc/include/asm/paca.h @@ -174,6 +174,7 @@ struct paca_struct { u8 irq_soft_mask; /* mask for irq soft masking */ u8 irq_happened; /* irq happened while soft-disabled */ u8 irq_work_pending; /* IRQ_WORK interrupt while soft-disable */ + u8 generic_fw_flags; /* Flags for generic framework */ #ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE u8 pmcregs_in_use; /* pseries puts this in lppaca */ #endif --=20 2.49.0