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Mon, 28 Apr 2025 15:23:33 +0000 (GMT) Received: from smtpav05.fra02v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 51B0520040; Mon, 28 Apr 2025 15:23:27 +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 15:23:27 +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 2/6] powerpc: Prepare to build with genreic entry/exit framework Date: Mon, 28 Apr 2025 20:52:23 +0530 Message-ID: <20250428152225.66044-5-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> 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 X-TM-AS-GCONF: 00 X-Proofpoint-ORIG-GUID: jdiVkyYOrWhumrnl6A6egDEBZc2SqGUr X-Proofpoint-Spam-Details-Enc: AW1haW4tMjUwNDI4MDEyNCBTYWx0ZWRfX5L/iFVCtT24C WM5xsxO71ulqfyyuLPGCJ3o64992KI/gM8Ldzw87BQjTirj78uiIxHCaXILnQkxolyTdJ0RF8DC bibkkb7/1fyrx0OOd0xXDUYGxB0MdEmMQLOMP4yP6g6P/Hd/jjiUn3z/MEFThdwVB2j1YY3oQ8q OlhRfb3388m+WMb1Cp2rVplmwvi0u7/O5y+pE87s41z759fUVceetRRTB/Nqb+gxU6m9qnmXZFb Nl0Emx8zx6SIvr2SbTyiZjYhkzEioJ8lABPh+EWYaEIqBxEDE+g3+XshEjRc2H89fIxGxTg3p1n CG8P6D0hgRik0nWbS88EDhzboQwVmJseUusAhl1NRk9AHy80h7CMKmXZKEbseHkl2rrdqmdoRn9 izWmuRF6PN5q4aWfsU3B6OlPxGNFliuLwHIW46NjRZ9R5MfePAMEtATk58PlzZ++bfeQAPbQ X-Proofpoint-GUID: 6eKnF0yz9C1iX_p2ei_SOvCrNKHiZ-S2 X-Authority-Analysis: v=2.4 cv=DvxW+H/+ c=1 sm=1 tr=0 ts=680f9d7b cx=c_pps a=GFwsV6G8L6GxiO2Y/PsHdQ==:117 a=GFwsV6G8L6GxiO2Y/PsHdQ==:17 a=XR8D0OoHHMoA:10 a=VnNF1IyMAAAA:8 a=d-Ijs9cN_SKXjrDOqSQA:9 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 mlxscore=0 bulkscore=0 lowpriorityscore=0 malwarescore=0 spamscore=0 mlxlogscore=748 phishscore=0 impostorscore=0 suspectscore=0 adultscore=0 clxscore=1015 priorityscore=1501 classifier=spam authscore=0 authtc=n/a authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.19.0-2504070000 definitions=main-2504280124 X-Spam-Status: No, score=-0.7 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, RCVD_IN_DNSWL_LOW,SPF_HELO_NONE,SPF_PASS autolearn=disabled version=4.0.1 OzLabs 8 X-Spam-Checker-Version: SpamAssassin 4.0.1 (2024-03-25) on lists.ozlabs.org Enabling build with generic entry/exit framework for powerpc architecture requires few necessary steps. This patch just takes care of the preparation. Signed-off-by: Mukesh Kumar Chaurasiya --- arch/powerpc/include/asm/entry-common.h | 11 +++++++++++ arch/powerpc/include/asm/stacktrace.h | 8 ++++++++ arch/powerpc/include/asm/syscall.h | 5 +++++ arch/powerpc/include/asm/thread_info.h | 1 + 4 files changed, 25 insertions(+) create mode 100644 arch/powerpc/include/asm/entry-common.h diff --git a/arch/powerpc/include/asm/entry-common.h b/arch/powerpc/include/asm/entry-common.h new file mode 100644 index 0000000000000..e9e4220a1d225 --- /dev/null +++ b/arch/powerpc/include/asm/entry-common.h @@ -0,0 +1,11 @@ +/* SPDX-License-Identifier: GPL-2.0 */ + +#ifndef _ASM_PPC_ENTRY_COMMON_H +#define _ASM_PPC_ENTRY_COMMON_H + +#ifdef CONFIG_GENERIC_ENTRY + +#include + +#endif /* CONFIG_GENERIC_ENTRY */ +#endif /* _ASM_PPC_ENTRY_COMMON_H */ diff --git a/arch/powerpc/include/asm/stacktrace.h b/arch/powerpc/include/asm/stacktrace.h index 6149b53b3bc8e..3f0a242468813 100644 --- a/arch/powerpc/include/asm/stacktrace.h +++ b/arch/powerpc/include/asm/stacktrace.h @@ -8,6 +8,14 @@ #ifndef _ASM_POWERPC_STACKTRACE_H #define _ASM_POWERPC_STACKTRACE_H +#include + void show_user_instructions(struct pt_regs *regs); +static inline bool on_thread_stack(void) +{ + return !(((unsigned long)(current->stack) ^ current_stack_pointer) + & ~(THREAD_SIZE -1)); +} + #endif /* _ASM_POWERPC_STACKTRACE_H */ diff --git a/arch/powerpc/include/asm/syscall.h b/arch/powerpc/include/asm/syscall.h index 3dd36c5e334a9..0e94806c7bfe6 100644 --- a/arch/powerpc/include/asm/syscall.h +++ b/arch/powerpc/include/asm/syscall.h @@ -119,4 +119,9 @@ static inline int syscall_get_arch(struct task_struct *task) else return AUDIT_ARCH_PPC64; } + +static inline bool arch_syscall_is_vdso_sigreturn(struct pt_regs *regs) +{ + return false; +} #endif /* _ASM_SYSCALL_H */ diff --git a/arch/powerpc/include/asm/thread_info.h b/arch/powerpc/include/asm/thread_info.h index 2785c7462ebf7..d0e87c9bae0b0 100644 --- a/arch/powerpc/include/asm/thread_info.h +++ b/arch/powerpc/include/asm/thread_info.h @@ -54,6 +54,7 @@ struct thread_info { int preempt_count; /* 0 => preemptable, <0 => BUG */ + unsigned long syscall_work; /* SYSCALL_WORK_ flags */ #ifdef CONFIG_SMP unsigned int cpu; #endif