From: Eliav Farber <farbere@amazon•com>
To: <linux@armlinux•org.uk>, <catalin.marinas@arm•com>,
<will@kernel•org>, <mpe@ellerman•id.au>, <npiggin@gmail•com>,
<christophe.leroy@csgroup•eu>, <naveen@kernel•org>,
<maddy@linux•ibm.com>, <paul.walmsley@sifive•com>,
<palmer@dabbelt•com>, <aou@eecs•berkeley.edu>,
<tglx@linutronix•de>, <akpm@linux-foundation•org>,
<bhe@redhat•com>, <farbere@amazon•com>, <hbathini@linux•ibm.com>,
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Cc: <jonnyc@amazon•com>
Subject: [PATCH v5 0/2] Improve interrupt handling during machine kexec
Date: Sat, 30 Nov 2024 20:11:41 +0000 [thread overview]
Message-ID: <20241130201143.48808-1-farbere@amazon.com> (raw)
This patch series focuses on improving the machine_kexec_mask_interrupts()
function by consolidating its implementation and optimizing its behavior to
avoid redundant interrupt masking.
Patch Summary:
[PATCH v5 1/2] Move machine_kexec_mask_interrupts() to kernel/irq/kexec.c,
removing duplicate architecture-specific implementations.
[PATCH v5 2/2] Refine machine_kexec_mask_interrupts() to avoid re-masking
already-masked interrupts, resolving specific warnings
triggered in GPIO IRQ flows.
Changes between v4 and v5:
- The function machine_kexec_mask_interrupts() has been moved
from kernel/kexec_core.c to a new file kernel/irq/kexec.c.
- A new configuration option, GENERIC_IRQ_KEXEC_CLEAR_VM_FORWARD, has been
added.
- The parameters for the machine_kexec_mask_interrupts() function have
been defined in reverse Christmas Tree style.
- The comment explaining the call to irq_set_irqchip_state() has been
improved for clarity.
- The phrase 'This patch' has been removed from the commit message.
Changes between v3 and v4:
- Add missing <linux/irqdesc.h> and <linux/irq.h> includes.
Eliav Farber (2):
kexec: Consolidate machine_kexec_mask_interrupts() implementation
kexec: Prevent redundant IRQ masking by checking state before shutdown
arch/arm/kernel/machine_kexec.c | 23 --------------------
arch/arm64/Kconfig | 1 +
arch/arm64/kernel/machine_kexec.c | 31 --------------------------
arch/powerpc/include/asm/kexec.h | 1 -
arch/powerpc/kexec/core.c | 22 -------------------
arch/powerpc/kexec/core_32.c | 1 +
arch/riscv/kernel/machine_kexec.c | 23 --------------------
include/linux/irq.h | 3 +++
kernel/irq/Kconfig | 9 ++++++++
kernel/irq/Makefile | 2 +-
kernel/irq/kexec.c | 36 +++++++++++++++++++++++++++++++
11 files changed, 51 insertions(+), 101 deletions(-)
create mode 100644 kernel/irq/kexec.c
--
2.40.1
next reply other threads:[~2024-11-30 20:11 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-11-30 20:11 Eliav Farber [this message]
2024-11-30 20:11 ` [PATCH v5 1/2] kexec: Consolidate machine_kexec_mask_interrupts() implementation Eliav Farber
2024-12-03 11:04 ` Thomas Gleixner
2024-12-04 11:02 ` Jiri Slaby
2024-11-30 20:11 ` [PATCH v5 2/2] kexec: Prevent redundant IRQ masking by checking state before shutdown Eliav Farber
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