From: Mukesh Kumar Chaurasiya <mchauras@linux.ibm.com>
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 <mchauras@linux.ibm.com>
Subject: [RFC V1 4/6] powerpc: Add flag in paca for register restore state
Date: Mon, 28 Apr 2025 20:52:25 +0530 [thread overview]
Message-ID: <20250428152225.66044-7-mchauras@linux.ibm.com> (raw)
In-Reply-To: <20250428152225.66044-2-mchauras@linux.ibm.com>
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 state.
Signed-off-by: Mukesh Kumar Chaurasiya <mchauras@linux.ibm.com>
---
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/paca.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
--
2.49.0
next prev parent reply other threads:[~2025-04-28 15:24 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-04-28 15:22 [RFC V1 0/6] Generic Entry/Exit support for ppc64 Mukesh Kumar Chaurasiya
2025-04-28 15:22 ` [RFC V1 1/6] powerpc: rename arch_irq_disabled_regs Mukesh Kumar Chaurasiya
2025-04-28 15:22 ` [RFC V1 2/6] powerpc: Prepare to build with genreic entry/exit framework Mukesh Kumar Chaurasiya
2025-04-28 15:22 ` [RFC V1 3/6] powerpc: introduce arch_enter_from_user_mode Mukesh Kumar Chaurasiya
2025-04-28 15:22 ` Mukesh Kumar Chaurasiya [this message]
2025-04-28 15:22 ` [RFC V1 5/6] powerpc: Introduce syscall exit arch functions Mukesh Kumar Chaurasiya
2025-04-28 15:22 ` [RFC V1 6/6] powerpc: Enable Generic Entry/Exit for syscalls Mukesh Kumar Chaurasiya
2025-04-29 6:11 ` Shrikanth Hegde
2025-05-02 8:01 ` Mukesh Kumar Chaurasiya
2025-04-28 15:52 ` [RFC V1 0/6] Generic Entry/Exit support for ppc64 Mukesh Kumar Chaurasiya
2025-05-05 17:08 ` Ankur Arora
2025-05-05 17:18 ` Ankur Arora
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