linux-kernel - [PATCH v4 0/2] Loongarch irq-redirect supprot

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Message-Id: <20250610114252.21077-1-zhangtianyang@loongson.cn>
Date: Tue, 10 Jun 2025 19:42:50 +0800
From: Tianyang Zhang <zhangtianyang@...ngson.cn>
To: chenhuacai@...nel.org,
	kernel@...0n.name,
	corbet@....net,
	alexs@...nel.org,
	si.yanteng@...ux.dev,
	tglx@...utronix.de,
	jiaxun.yang@...goat.com,
	peterz@...radead.org,
	wangliupu@...ngson.cn,
	lvjianmin@...ngson.cn,
	maobibo@...ngson.cn,
	siyanteng@...oftware.com.cn,
	gaosong@...ngson.cn,
	yangtiezhu@...ngson.cn
Cc: loongarch@...ts.linux.dev,
	linux-doc@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	Super User <root@...alhost.localdomain>
Subject: [PATCH v4 0/2]  Loongarch irq-redirect supprot

From: Super User <root@...alhost.localdomain>

This series of patches introduces support for interrupt-redirect
controllers, and this hardware feature will be supported on 3C6000
for the first time

change log:
	v0->v1:
	1.Rename the model names in the document.
	2.Adjust the code format.
	3.Remove architecture - specific prefixes.
	4.Refactor the initialization logic, and IR driver no longer set AVEC_ENABLE.
	5.Enhance compatibility under certain configurations.

	v1->v2:
	1.Fixed an erroneous enabling issue.

	v2->v3
	1.Replace smp_call with address mapping to access registers
	2.Fix some code style issues

	v3->v4
	1.Provide reasonable comments on the modifications made to IRQ_SET_MASK_OK_DONE	
	2.Replace meaningless empty functions with parent_mask/unmask/ack
	3.Added and indeed released resources
	4.Added judgment for data structure initialization completion to avoid duplicate creation during cpuhotplug
	5.Fixed the code style and some unnecessary troubles

Tianyang Zhang (2):
  Docs/LoongArch: Add Advanced Extended-Redirect IRQ model description
  irq/irq-loongarch-ir:Add Redirect irqchip support

 .../arch/loongarch/irq-chip-model.rst         |  38 ++
 .../zh_CN/arch/loongarch/irq-chip-model.rst   |  37 ++
 arch/loongarch/include/asm/cpu-features.h     |   1 +
 arch/loongarch/include/asm/cpu.h              |   2 +
 arch/loongarch/include/asm/loongarch.h        |   6 +
 arch/loongarch/kernel/cpu-probe.c             |   2 +
 drivers/irqchip/Makefile                      |   2 +-
 drivers/irqchip/irq-loongarch-avec.c          |  25 +-
 drivers/irqchip/irq-loongarch-ir.c            | 562 ++++++++++++++++++
 drivers/irqchip/irq-loongson.h                |  12 +
 include/linux/cpuhotplug.h                    |   1 +
 11 files changed, 674 insertions(+), 14 deletions(-)
 create mode 100644 drivers/irqchip/irq-loongarch-ir.c

-- 
2.41.0