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ardix/arch/at91sam3x8e/handle_pend_sv.S

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piss off capitalism Ardix is being relicensed to GPL v3 or later. I have no idea whether you can just do this if you feel like it or if it has any consequences, but i kinda don't really care that much about it. Any changes made after this commit will definitely fall under the GPL though, and considering that only few things are really working yet anyways this is good enough for me.
2021-02-28 02:18:39 +01:00
/* See the end of this file for copyright, license, and warranty information. */
Add base stuff for preemptive scheduler
2020-06-12 11:49:20 +02:00
asm: refactor to use thumb2 instructions
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.include "asm.S"
Add base stuff for preemptive scheduler
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.text
sched: complete rework of context switching The old strategy was to only do context switching from within the PendSV handler. This worked fine until now because all syscalls were handled either atomically or just returned -EAGAIN if the resource was locked or busy. However, with the introduction of I/O wait, we need to be able to sleep directly from within the kernel by moving the context switching completely into the kernel.
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/* void schedule(void); */
.extern schedule
Add base stuff for preemptive scheduler
2020-06-12 11:49:20 +02:00
arch: add fault handlers, rename exceptions
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/* void handle_pend_sv(void); */
func_begin handle_pend_sv
sched: complete rework of context switching The old strategy was to only do context switching from within the PendSV handler. This worked fine until now because all syscalls were handled either atomically or just returned -EAGAIN if the resource was locked or busy. However, with the introduction of I/O wait, we need to be able to sleep directly from within the kernel by moving the context switching completely into the kernel.
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prepare_entry
bl schedule
prepare_leave
arch: make exclusive stores fail after interrupts
2021-08-03 21:19:09 +02:00
Add base stuff for preemptive scheduler
2020-06-12 11:49:20 +02:00
bx lr
arch: add fault handlers, rename exceptions
2021-08-03 14:41:36 +02:00
func_end handle_pend_sv
Move license comment to the bottom
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/*
piss off capitalism Ardix is being relicensed to GPL v3 or later. I have no idea whether you can just do this if you feel like it or if it has any consequences, but i kinda don't really care that much about it. Any changes made after this commit will definitely fall under the GPL though, and considering that only few things are really working yet anyways this is good enough for me.
2021-02-28 02:18:39 +01:00
* This file is part of Ardix.
* Copyright (c) 2020, 2021 Felix Kopp <owo@fef.moe>.
Move license comment to the bottom
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*
kiss capitalism goodbye for good The CNPL will make sure that absolutely no corporation is going to get anywhere near Ardix -- exactly as it should be. Fuck you, corporations!
2021-05-10 16:19:38 +02:00
* Ardix is non-violent software: you may only use, redistribute,
* and/or modify it under the terms of the CNPLv6+ as found in
* the LICENSE file in the source code root directory or at
* <https://git.pixie.town/thufie/CNPL>.
Move license comment to the bottom
2020-10-11 19:35:30 +02:00
*
kiss capitalism goodbye for good The CNPL will make sure that absolutely no corporation is going to get anywhere near Ardix -- exactly as it should be. Fuck you, corporations!
2021-05-10 16:19:38 +02:00
* Ardix comes with ABSOLUTELY NO WARRANTY, to the extent
* permitted by applicable law. See the CNPLv6+ for details.
Move license comment to the bottom
2020-10-11 19:35:30 +02:00
*/
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