diff options
| author | Samuel Thibault <samuel.thibault@ens-lyon.org> | 2020-07-10 00:23:32 +0200 |
|---|---|---|
| committer | Samuel Thibault <samuel.thibault@ens-lyon.org> | 2020-07-10 00:31:38 +0200 |
| commit | 6054cda4de2341b9a77ec4421411725f3684006b (patch) | |
| tree | 02622e721dffe9fdb73e35805de2fbf8a2a5aea8 /kern | |
| parent | 2dbf108457d0a0057cc63d5b3b89fd4da48d2a72 (diff) | |
Add hardware interrupt notification mechanism
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.
Diffstat (limited to 'kern')
| -rw-r--r-- | kern/startup.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/kern/startup.c b/kern/startup.c index 56e05b3f..1f873192 100644 --- a/kern/startup.c +++ b/kern/startup.c @@ -63,6 +63,7 @@ #include <machine/model_dep.h> #include <mach/version.h> #include <device/device_init.h> +#include <device/intr.h> #if MACH_KDB #include <device/cons.h> @@ -228,6 +229,9 @@ void start_kernel_threads(void) (void) kernel_thread(kernel_task, reaper_thread, (char *) 0); (void) kernel_thread(kernel_task, swapin_thread, (char *) 0); (void) kernel_thread(kernel_task, sched_thread, (char *) 0); +#ifndef MACH_XEN + (void) kernel_thread(kernel_task, intr_thread, (char *)0); +#endif /* MACH_XEN */ #if NCPUS > 1 /* |