WebSVN – HelenOS – Blame – /trunk/kernel/arch/arm32/src/arm32.c

Rev	Author	Line No.	Line
2128	jermar	1	/*
2465	jermar	2	* Copyright (c) 2007 Michal Kebrt
2128	jermar	3	* All rights reserved.
		4	*
		5	* Redistribution and use in source and binary forms, with or without
		6	* modification, are permitted provided that the following conditions
		7	* are met:
		8	*
		9	* - Redistributions of source code must retain the above copyright
		10	* notice, this list of conditions and the following disclaimer.
		11	* - Redistributions in binary form must reproduce the above copyright
		12	* notice, this list of conditions and the following disclaimer in the
		13	* documentation and/or other materials provided with the distribution.
		14	* - The name of the author may not be used to endorse or promote products
		15	* derived from this software without specific prior written permission.
		16	*
		17	* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
		18	* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
		19	* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
		20	* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
		21	* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
		22	* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
		23	* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
		24	* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
		25	* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
		26	* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
		27	*/
		28
		29	/** @addtogroup arm32
		30	* @{
		31	*/
		32	/** @file
2465	jermar	33	* @brief ARM32 architecture specific functions.
2128	jermar	34	*/
		35
		36	#include <arch.h>
2465	jermar	37	#include <arch/boot.h>
		38	#include <config.h>
		39	#include <arch/console.h>
		40	#include <ddi/device.h>
		41	#include <genarch/fb/fb.h>
		42	#include <genarch/fb/visuals.h>
		43	#include <ddi/irq.h>
		44	#include <arch/debug/print.h>
		45	#include <print.h>
		46	#include <config.h>
		47	#include <interrupt.h>
		48	#include <arch/regutils.h>
		49	#include <arch/machine.h>
		50	#include <userspace.h>
2128	jermar	51
2465	jermar	52	/** Information about loaded tasks. */
		53	bootinfo_t bootinfo;
		54
		55	/** Performs arm32 specific initialization before main_bsp() is called. */
2128	jermar	56	void arch_pre_main(void)
		57	{
2745	decky	58	unsigned int i;
2465	jermar	59
		60	init.cnt = bootinfo.cnt;
		61
		62	for (i = 0; i < bootinfo.cnt; ++i) {
		63	init.tasks[i].addr = bootinfo.tasks[i].addr;
		64	init.tasks[i].size = bootinfo.tasks[i].size;
		65	}
		66
2128	jermar	67	}
		68
2465	jermar	69	/** Performs arm32 specific initialization before mm is initialized. */
2128	jermar	70	void arch_pre_mm_init(void)
		71	{
2465	jermar	72	/* It is not assumed by default */
		73	interrupts_disable();
2128	jermar	74	}
		75
2465	jermar	76	/** Performs arm32 specific initialization afterr mm is initialized. */
2128	jermar	77	void arch_post_mm_init(void)
		78	{
2465	jermar	79	machine_hw_map_init();
		80
		81	/* Initialize exception dispatch table */
		82	exception_init();
		83
		84	interrupt_init();
		85
		86	console_init(device_assign_devno());
		87
		88	#ifdef CONFIG_FB
3672	jermar	89	fb_properties_t prop = {
		90	.addr = machine_get_fb_address(),
		91	.offset = 0,
		92	.x = 640,
		93	.y = 480,
		94	.scan = 1920,
		95	.visual = VISUAL_RGB_8_8_8,
		96	};
		97	fb_init(&prop);
2465	jermar	98	#endif
2128	jermar	99	}
		100
2465	jermar	101	/** Performs arm32 specific tasks needed after cpu is initialized.
		102	*
		103	* Currently the function is empty.
		104	*/
2128	jermar	105	void arch_post_cpu_init(void)
		106	{
		107	}
		108
2465	jermar	109
		110	/** Performs arm32 specific tasks needed before the multiprocessing is
		111	* initialized.
		112	*
		113	* Currently the function is empty because SMP is not supported.
		114	*/
2128	jermar	115	void arch_pre_smp_init(void)
		116	{
		117	}
		118
2465	jermar	119
		120	/** Performs arm32 specific tasks needed after the multiprocessing is
		121	* initialized.
		122	*
		123	* Currently the function is empty because SMP is not supported.
		124	*/
2128	jermar	125	void arch_post_smp_init(void)
		126	{
		127	}
		128
2465	jermar	129
		130	/** Performs arm32 specific tasks needed before the new task is run. */
2128	jermar	131	void before_task_runs_arch(void)
		132	{
2465	jermar	133	tlb_invalidate_all();
2128	jermar	134	}
		135
2465	jermar	136
		137	/** Performs arm32 specific tasks needed before the new thread is scheduled.
		138	*
		139	* It sets supervisor_sp.
		140	*/
2128	jermar	141	void before_thread_runs_arch(void)
		142	{
2465	jermar	143	uint8_t *stck;
		144
		145	stck = &THREAD->kstack[THREAD_STACK_SIZE - SP_DELTA];
		146	supervisor_sp = (uintptr_t) stck;
2128	jermar	147	}
		148
2465	jermar	149	/** Performs arm32 specific tasks before a thread stops running.
		150	*
		151	* Currently the function is empty.
		152	*/
2128	jermar	153	void after_thread_ran_arch(void)
		154	{
		155	}
		156
2465	jermar	157	/** Halts CPU. */
		158	void cpu_halt(void)
2227	decky	159	{
2465	jermar	160	machine_cpu_halt();
2227	decky	161	}
		162
2465	jermar	163	/** Reboot. */
		164	void arch_reboot()
		165	{
		166	/* not implemented */
		167	for (;;)
		168	;
		169	}
		170
2128	jermar	171	/** @}
		172	*/

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(root)/trunk/kernel/arch/arm32/src/arm32.c – Rev 3719