WebSVN – HelenOS – Blame – /trunk/kernel/arch/sparc64/src/sparc64.c

Rev	Author	Line No.	Line
424	jermar	1	/*
2071	jermar	2	* Copyright (c) 2005 Jakub Jermar
424	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
1769	jermar	29	/** @addtogroup sparc64
1702	cejka	30	* @{
		31	*/
		32	/** @file
		33	*/
		34
424	jermar	35	#include <arch.h>
669	jermar	36	#include <debug.h>
1860	jermar	37	#include <config.h>
630	jermar	38	#include <arch/trap/trap.h>
586	jermar	39	#include <arch/console.h>
669	jermar	40	#include <proc/thread.h>
1474	palkovsky	41	#include <console/console.h>
1790	jermar	42	#include <arch/boot/boot.h>
1792	jermar	43	#include <arch/arch.h>
1881	jermar	44	#include <arch/asm.h>
1860	jermar	45	#include <arch/mm/page.h>
		46	#include <arch/stack.h>
1895	jermar	47	#include <genarch/ofw/ofw_tree.h>
1860	jermar	48	#include <userspace.h>
1920	jermar	49	#include <ddi/irq.h>
424	jermar	50
1790	jermar	51	bootinfo_t bootinfo;
		52
2048	jermar	53	/** Perform sparc64 specific initialization before main_bsp() is called. */
1864	jermar	54	void arch_pre_main(void)
		55	{
1894	jermar	56	/* Copy init task info. */
1864	jermar	57	init.cnt = bootinfo.taskmap.count;
		58
		59	uint32_t i;
		60
		61	for (i = 0; i < bootinfo.taskmap.count; i++) {
1982	jermar	62	init.tasks[i].addr = (uintptr_t) bootinfo.taskmap.tasks[i].addr;
1864	jermar	63	init.tasks[i].size = bootinfo.taskmap.tasks[i].size;
		64	}
1894	jermar	65
		66	/* Copy boot allocations info. */
		67	ballocs.base = bootinfo.ballocs.base;
		68	ballocs.size = bootinfo.ballocs.size;
1895	jermar	69
		70	ofw_tree_init(bootinfo.ofw_root);
1864	jermar	71	}
		72
2048	jermar	73	/** Perform sparc64 specific initialization before mm is initialized. */
424	jermar	74	void arch_pre_mm_init(void)
		75	{
1903	jermar	76	if (config.cpu_active == 1)
		77	trap_init();
424	jermar	78	}
		79
2048	jermar	80	/** Perform sparc64 specific initialization afterr mm is initialized. */
424	jermar	81	void arch_post_mm_init(void)
		82	{
1919	jermar	83	if (config.cpu_active == 1) {
2048	jermar	84	/*
		85	* We have 2^11 different interrupt vectors.
		86	* But we only create 128 buckets.
		87	*/
		88	irq_init(1 << 11, 128);
3672	jermar	89
1903	jermar	90	standalone_sparc64_console_init();
1919	jermar	91	}
424	jermar	92	}
		93
1901	jermar	94	void arch_post_cpu_init(void)
		95	{
		96	}
		97
503	jermar	98	void arch_pre_smp_init(void)
424	jermar	99	{
		100	}
		101
503	jermar	102	void arch_post_smp_init(void)
		103	{
2091	jermar	104	static thread_t *t = NULL;
893	jermar	105
2091	jermar	106
		107	if (!t) {
1903	jermar	108	/*
		109	* Create thread that polls keyboard.
		110	*/
2043	jermar	111	t = thread_create(kkbdpoll, NULL, TASK, 0, "kkbdpoll", true);
1903	jermar	112	if (!t)
3790	svoboda	113	panic("Cannot create kkbdpoll.");
1903	jermar	114	thread_ready(t);
		115	}
503	jermar	116	}
		117
1881	jermar	118	/** Calibrate delay loop.
		119	*
		120	* On sparc64, we implement delay() by waiting for the TICK register to
		121	* reach a pre-computed value, as opposed to performing some pre-computed
		122	* amount of instructions of known duration. We set the delay_loop_const
		123	* to 1 in order to neutralize the multiplication done by delay().
		124	*/
424	jermar	125	void calibrate_delay_loop(void)
		126	{
1881	jermar	127	CPU->delay_loop_const = 1;
424	jermar	128	}
1474	palkovsky	129
1881	jermar	130	/** Wait several microseconds.
		131	*
		132	* We assume that interrupts are already disabled.
		133	*
		134	* @param t Microseconds to wait.
		135	*/
		136	void asm_delay_loop(const uint32_t usec)
		137	{
2043	jermar	138	uint64_t stop = tick_read() + (uint64_t) usec * (uint64_t)
2107	jermar	139	CPU->arch.clock_frequency / 1000000;
1881	jermar	140
		141	while (tick_read() < stop)
		142	;
		143	}
		144
1860	jermar	145	/** Switch to userspace. */
		146	void userspace(uspace_arg_t *kernel_uarg)
		147	{
		148	switch_to_userspace((uintptr_t) kernel_uarg->uspace_entry,
2107	jermar	149	((uintptr_t) kernel_uarg->uspace_stack) + STACK_SIZE
		150	- (ALIGN_UP(STACK_ITEM_SIZE, STACK_ALIGNMENT) + STACK_BIAS),
		151	(uintptr_t) kernel_uarg->uspace_uarg);
1860	jermar	152
		153	for (;;)
		154	;
		155	/* not reached */
		156	}
		157
2227	decky	158	void arch_reboot(void)
		159	{
		160	// TODO
		161	while (1);
		162	}
		163
1769	jermar	164	/** @}
1702	cejka	165	*/

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(root)/trunk/kernel/arch/sparc64/src/sparc64.c – Rev 3795