WebSVN – HelenOS – Blame – /trunk/kernel/arch/ppc32/src/ppc32.c

Rev	Author	Line No.	Line
210	decky	1	/*
2071	jermar	2	* Copyright (c) 2005 Martin Decky
210	decky	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
1734	decky	29	/** @addtogroup ppc32
1702	cejka	30	* @{
		31	*/
		32	/** @file
		33	*/
		34
2089	decky	35	#include <config.h>
210	decky	36	#include <arch.h>
1132	decky	37	#include <arch/boot/boot.h>
990	decky	38	#include <arch/drivers/cuda.h>
1004	decky	39	#include <arch/interrupt.h>
1374	decky	40	#include <genarch/fb/fb.h>
1993	decky	41	#include <genarch/fb/visuals.h>
1220	decky	42	#include <userspace.h>
		43	#include <proc/uarg.h>
1474	palkovsky	44	#include <console/console.h>
1928	decky	45	#include <ddi/device.h>
		46	#include <ddi/irq.h>
1480	palkovsky	47	#include <arch/drivers/pic.h>
3922	decky	48	#include <macros.h>
970	decky	49
3922	decky	50	#define IRQ_COUNT 64
1928	decky	51
1132	decky	52	bootinfo_t bootinfo;
		53
4023	svoboda	54	/** Performs ppc32-specific initialization before main_bsp() is called. */
1222	decky	55	void arch_pre_main(void)
		56	{
1370	decky	57	init.cnt = bootinfo.taskmap.count;
		58
1780	jermar	59	uint32_t i;
1370	decky	60
3922	decky	61	for (i = 0; i < min3(bootinfo.taskmap.count, TASKMAP_MAX_RECORDS, CONFIG_INIT_TASKS); i++) {
1370	decky	62	init.tasks[i].addr = PA2KA(bootinfo.taskmap.tasks[i].addr);
		63	init.tasks[i].size = bootinfo.taskmap.tasks[i].size;
		64	}
1222	decky	65	}
		66
210	decky	67	void arch_pre_mm_init(void)
		68	{
1004	decky	69	/* Initialize dispatch table */
1007	decky	70	interrupt_init();
1480	palkovsky	71
1007	decky	72	/* Start decrementer */
		73	start_decrementer();
210	decky	74	}
		75
		76	void arch_post_mm_init(void)
		77	{
1304	palkovsky	78	if (config.cpu_active == 1) {
1928	decky	79	/* Initialize framebuffer */
3829	decky	80	if (bootinfo.screen.addr) {
		81	unsigned int visual;
		82
		83	switch (bootinfo.screen.bpp) {
		84	case 8:
		85	visual = VISUAL_INDIRECT_8;
		86	break;
		87	case 16:
		88	visual = VISUAL_RGB_5_5_5;
		89	break;
		90	case 24:
		91	visual = VISUAL_RGB_8_8_8;
		92	break;
		93	case 32:
		94	visual = VISUAL_RGB_0_8_8_8;
		95	break;
		96	default:
		97	panic("Unsupported bits per pixel.");
		98	}
		99	fb_properties_t prop = {
		100	.addr = bootinfo.screen.addr,
		101	.offset = 0,
		102	.x = bootinfo.screen.width,
		103	.y = bootinfo.screen.height,
		104	.scan = bootinfo.screen.scanline,
		105	.visual = visual,
		106	};
		107	fb_init(&prop);
1993	decky	108	}
		109
1928	decky	110	/* Initialize IRQ routing */
		111	irq_init(IRQ_COUNT, IRQ_COUNT);
1619	decky	112
3829	decky	113	if (bootinfo.macio.addr) {
		114	/* Initialize PIC */
		115	pic_init(bootinfo.macio.addr, PAGE_SIZE);
		116
		117	/* Initialize I/O controller */
		118	cuda_init(device_assign_devno(),
		119	bootinfo.macio.addr + 0x16000, 2 * PAGE_SIZE);
		120	}
1619	decky	121
1304	palkovsky	122	/* Merge all zones to 1 big zone */
		123	zone_merge_all();
		124	}
210	decky	125	}
		126
1901	jermar	127	void arch_post_cpu_init(void)
		128	{
		129	}
		130
503	jermar	131	void arch_pre_smp_init(void)
210	decky	132	{
		133	}
		134
503	jermar	135	void arch_post_smp_init(void)
		136	{
		137	}
		138
210	decky	139	void calibrate_delay_loop(void)
		140	{
		141	}
1007	decky	142
1220	decky	143	void userspace(uspace_arg_t *kernel_uarg)
		144	{
3672	jermar	145	userspace_asm((uintptr_t) kernel_uarg->uspace_uarg,
		146	(uintptr_t) kernel_uarg->uspace_stack +
		147	THREAD_STACK_SIZE - SP_DELTA,
		148	(uintptr_t) kernel_uarg->uspace_entry);
1220	decky	149
		150	/* Unreachable */
3844	decky	151	while (true);
1220	decky	152	}
1474	palkovsky	153
		154	/** Acquire console back for kernel
		155	*
		156	*/
		157	void arch_grab_console(void)
		158	{
3738	decky	159	fb_redraw();
1474	palkovsky	160	}
1734	decky	161
1474	palkovsky	162	/** Return console to userspace
		163	*
		164	*/
		165	void arch_release_console(void)
		166	{
		167	}
1702	cejka	168
3880	decky	169	/** Construct function pointer
		170	*
		171	* @param fptr function pointer structure
		172	* @param addr function address
		173	* @param caller calling function address
		174	*
		175	* @return address of the function pointer
		176	*
		177	*/
		178	void arch_construct_function(fncptr_t fptr, void addr, void caller)
		179	{
		180	return addr;
		181	}
		182
1734	decky	183	/** @}
1702	cejka	184	*/

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