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	Commit message (Collapse)	Author	Age	Files	Lines
*	device intr: Return an error on bogus intr port	Samuel Thibault	2022-03-13	1	-3/+5
\| \| \| \|	Rather than risking dereferencing NULL.
*	device intr: Fix hypothetical NULL dererefence	Samuel Thibault	2022-03-13	1	-1/+1
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*	SMP: Fix warnings	Samuel Thibault	2021-04-04	1	-2/+2
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*	intr: Always share irqs	Samuel Thibault	2021-03-31	1	-0/+2
\| \| \| \| \| \|	We currently already always assume that irqs user handlers can be shared * device/intr.c (install_user_intr_handler): Add SA_SHIRQ to flags.
*	intr: Add user interrupt handling code for non-Linux case	Damien Zammit	2021-03-31	1	-0/+80
\| \| \| \| \| \| \| \| \| \|	* device/intr.c: Include <kern/assert.h> (struct intr_list): New structure. (user_intr_handlers): New array. (user_irq_handler): New function. (install_user_intr_handler): New function. Message-Id: <20210330025830.63528-2-damien@zamaudio.com>
*	Add hardware interrupt notification mechanism	Samuel Thibault	2020-07-10	1	-0/+283
	This allows privileged userland drivers to get notifications of hardware interrupts. Initial work by Zheng Da, reworked by Damien Zammit and myself. * Makefrag.am (libkernel_a_SOURCES): Add device/intr.c and device/intr.h. (include_device_HEADERS): Add include/device/notify.defs and include/device/notify.h. * device/dev_hdr.h (name_equal): Add declaration. * device/ds_routines.c: Include <device/intr.h> (ds_device_intr_register, ds_device_intr_ack): New functions. * device/intr.c, device/intr.h: New files. * doc/mach.texi (Device Interrupt): New section. * i386/Makefrag.am (libkernel_a_SOURCES): Add i386/i386/irq.c and i386/i386/irq.h. * i386/i386/irq.c, i386/i386/irq.h: New files. * i386/i386at/conf.c: Include <device/intr.h>. (irqname): New macro. (dev_name_list): Add irq device. * include/device/device.defs (device_intr_register, device_intr_ack): New RPCs. * include/device/notify.defs, include/device/notify.h: New files. * kern/startup.c: Include <device/intr.h> (start_kernel_threads): Start intr_thread thread. * linux/dev/arch/i386/kernel/irq.c: Include <device/intr.h> (linux_action): Add user_intr field. (linux_intr): Call user_intr action if any. (mask_irq, unmask_irq): Move functions to i386/i386/pic.c (__disable_irq, __enable_irq): Move functions to i386/i386/irq.c. (install_user_intr_handler): New function. (request_irq): Initialize user_intr field. * linux/src/include/asm-i386/irq.h (__disable_irq, __enable_irq): Remove prototypes. * i386/i386/pic.c (mask_irq, unmask_irq): New functions. * i386/i386/pic.h (mask_irq, unmask_irq): New prototypes.