kernel/arch/mips/include/asm/i8259.h, branch linux-rolling-stable

irqchip: Add driver for Loongson-3 HyperTransport PIC controller

2020-03-25T09:56:43Z

This controller appeared on Loongson-3 family of chips to receive interrupts from PCH PIC. It is a I8259 with optimized interrupt polling flow. We can poll interrupt number from HT vector directly but still have to follow standard I8259 routines to mask, unmask and EOI. Signed-off-by: Jiaxun Yang Co-developed-by: Huacai Chen Signed-off-by: Huacai Chen Reviewed-by: Marc Zyngier Signed-off-by: Thomas Bogendoerfer

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152

2019-05-30T18:26:32Z

Based on 1 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license as published by the free software foundation either version 2 of the license or at your option any later version extracted by the scancode license scanner the SPDX license identifier GPL-2.0-or-later has been chosen to replace the boilerplate/reference in 3029 file(s). Signed-off-by: Thomas Gleixner Reviewed-by: Allison Randal Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190527070032.746973796@linutronix.de Signed-off-by: Greg Kroah-Hartman

MIPS: IRQ: Remove useless i8259_of_init() prototype.

2017-01-03T15:34:48Z

Signed-off-by: Ralf Baechle

irqchip: i8259: Remove unused i8259A_irq_pending

2016-10-06T15:31:00Z

The i8259A_irq_pending function is unused. Remove the dead code. Signed-off-by: Paul Burton Acked-by: Thomas Gleixner Cc: Jason Cooper Cc: Marc Zyngier Cc: linux-mips@linux-mips.org Cc: linux-kernel@vger.kernel.org Patchwork: https://patchwork.linux-mips.org/patch/14271/ Signed-off-by: Ralf Baechle

irqchip: i8259: Allow platforms to override poll function

2016-10-06T15:31:00Z

The default i8259 polling function (i8259_irq) is nicely generic but is fairly costly. Platforms often provide an alternative means of polling for an i8259 interrupt, and when using the i8259 without device tree have typically just chained its parent interrupt to their own handler function. In order to allow for platform-specific polling functions to be used in cases where the driver is probed via device tree, provide an i8259_set_poll function that accepts a pointer to an alternative poll function that will override the default. Signed-off-by: Paul Burton Acked-by: Thomas Gleixner Cc: Jason Cooper Cc: Marc Zyngier Cc: linux-mips@linux-mips.org Cc: linux-kernel@vger.kernel.org Patchwork: https://patchwork.linux-mips.org/patch/14270/ Signed-off-by: Ralf Baechle

MIPS: i8259: DT support

2015-06-21T19:54:29Z

Support probing the i8259 programmable interrupt controller, as found on the Malta board, and using its interrupts via device tree. Signed-off-by: Paul Burton Cc: linux-mips@linux-mips.org Cc: devicetree@vger.kernel.org Cc: Rob Herring Cc: Pawel Moll Cc: Mark Rutland Cc: Ian Campbell Cc: Kumar Gala Cc: Qais Yousef Cc: Andrew Bresticker Cc: linux-kernel@vger.kernel.org Patchwork: http://patchwork.linux-mips.org/patch/10114/ Signed-off-by: Ralf Baechle

MIPS: i8259: Convert IRQ controller lock to raw spinlock.

2010-02-27T11:53:38Z

Signed-off-by: Ralf Baechle

MIPS: Move headfiles to new location below arch/mips/include

2008-10-11T15:18:52Z

Signed-off-by: Ralf Baechle