WebSVN – HelenOS – Blame – /branches/dynload/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 <config.h>
		38	#include <arch/console.h>
		39	#include <ddi/device.h>
		40	#include <genarch/fb/fb.h>
		41	#include <genarch/fb/visuals.h>
		42	#include <ddi/irq.h>
		43	#include <arch/debug/print.h>
		44	#include <print.h>
		45	#include <config.h>
		46	#include <interrupt.h>
		47	#include <arch/regutils.h>
		48	#include <arch/machine.h>
		49	#include <userspace.h>
4343	svoboda	50	#include <macros.h>
2128	jermar	51
2465	jermar	52	/** Performs arm32 specific initialization before main_bsp() is called. */
4343	svoboda	53	void arch_pre_main(void entry __attribute__((unused)), bootinfo_t bootinfo)
2128	jermar	54	{
2745	decky	55	unsigned int i;
4343	svoboda	56
		57	init.cnt = bootinfo->cnt;
		58
		59	for (i = 0; i < min3(bootinfo->cnt, TASKMAP_MAX_RECORDS, CONFIG_INIT_TASKS); ++i) {
		60	init.tasks[i].addr = bootinfo->tasks[i].addr;
		61	init.tasks[i].size = bootinfo->tasks[i].size;
2465	jermar	62	}
2128	jermar	63	}
		64
2465	jermar	65	/** Performs arm32 specific initialization before mm is initialized. */
2128	jermar	66	void arch_pre_mm_init(void)
		67	{
2465	jermar	68	/* It is not assumed by default */
		69	interrupts_disable();
2128	jermar	70	}
		71
2465	jermar	72	/** Performs arm32 specific initialization afterr mm is initialized. */
2128	jermar	73	void arch_post_mm_init(void)
		74	{
2465	jermar	75	machine_hw_map_init();
		76
		77	/* Initialize exception dispatch table */
		78	exception_init();
		79
		80	interrupt_init();
		81
		82	console_init(device_assign_devno());
		83
		84	#ifdef CONFIG_FB
3674	svoboda	85	fb_properties_t prop = {
		86	.addr = machine_get_fb_address(),
		87	.offset = 0,
		88	.x = 640,
		89	.y = 480,
		90	.scan = 1920,
4342	svoboda	91	.visual = VISUAL_BGR_8_8_8,
3674	svoboda	92	};
		93	fb_init(&prop);
2465	jermar	94	#endif
2128	jermar	95	}
		96
2465	jermar	97	/** Performs arm32 specific tasks needed after cpu is initialized.
		98	*
		99	* Currently the function is empty.
		100	*/
2128	jermar	101	void arch_post_cpu_init(void)
		102	{
		103	}
		104
2465	jermar	105
		106	/** Performs arm32 specific tasks needed before the multiprocessing is
		107	* initialized.
		108	*
		109	* Currently the function is empty because SMP is not supported.
		110	*/
2128	jermar	111	void arch_pre_smp_init(void)
		112	{
		113	}
		114
2465	jermar	115
		116	/** Performs arm32 specific tasks needed after the multiprocessing is
		117	* initialized.
		118	*
		119	* Currently the function is empty because SMP is not supported.
		120	*/
2128	jermar	121	void arch_post_smp_init(void)
		122	{
		123	}
		124
2465	jermar	125
		126	/** Performs arm32 specific tasks needed before the new task is run. */
2128	jermar	127	void before_task_runs_arch(void)
		128	{
2465	jermar	129	tlb_invalidate_all();
2128	jermar	130	}
		131
2465	jermar	132
		133	/** Performs arm32 specific tasks needed before the new thread is scheduled.
		134	*
		135	* It sets supervisor_sp.
		136	*/
2128	jermar	137	void before_thread_runs_arch(void)
		138	{
2465	jermar	139	uint8_t *stck;
		140
		141	stck = &THREAD->kstack[THREAD_STACK_SIZE - SP_DELTA];
		142	supervisor_sp = (uintptr_t) stck;
2128	jermar	143	}
		144
2465	jermar	145	/** Performs arm32 specific tasks before a thread stops running.
		146	*
		147	* Currently the function is empty.
		148	*/
2128	jermar	149	void after_thread_ran_arch(void)
		150	{
		151	}
		152
2465	jermar	153	/** Halts CPU. */
		154	void cpu_halt(void)
2227	decky	155	{
2465	jermar	156	machine_cpu_halt();
2227	decky	157	}
		158
2465	jermar	159	/** Reboot. */
		160	void arch_reboot()
		161	{
		162	/* not implemented */
4342	svoboda	163	while (1);
2465	jermar	164	}
		165
4342	svoboda	166	/** Construct function pointer
		167	*
		168	* @param fptr function pointer structure
		169	* @param addr function address
		170	* @param caller calling function address
		171	*
		172	* @return address of the function pointer
		173	*
		174	*/
		175	void arch_construct_function(fncptr_t fptr, void addr, void caller)
		176	{
		177	return addr;
		178	}
		179
2128	jermar	180	/** @}
		181	*/

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