source: mainline/kernel/arch/ia64/src/ia64.c@ d4673296

lfn serial ticket/834-toolchain-update topic/msim-upgrade topic/simplify-dev-export
Last change on this file since d4673296 was d4673296, checked in by Jakub Jermar <jakub@…>, 14 years ago

Move hw_map() to km.c
  • Property mode set to 100644
File size: 7.5 KB
Line 
1/*
2 * Copyright (c) 2005 Jakub 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 ia64
30 * @{
31 */
32/** @file
33 */
34
35#include <arch.h>
36#include <typedefs.h>
37#include <errno.h>
38#include <interrupt.h>
39#include <macros.h>
40#include <str.h>
41#include <userspace.h>
42#include <console/console.h>
43#include <syscall/syscall.h>
44#include <sysinfo/sysinfo.h>
45#include <arch/drivers/it.h>
46#include <arch/drivers/kbd.h>
47#include <arch/legacyio.h>
48#include <genarch/drivers/ega/ega.h>
49#include <genarch/drivers/i8042/i8042.h>
50#include <genarch/drivers/ns16550/ns16550.h>
51#include <genarch/drivers/legacy/ia32/io.h>
52#include <genarch/kbrd/kbrd.h>
53#include <genarch/srln/srln.h>
54#include <mm/page.h>
55#include <mm/km.h>
56
57#ifdef MACHINE_ski
58#include <arch/drivers/ski.h>
59#endif
60
61/* NS16550 as a COM 1 */
62#define NS16550_IRQ (4 + LEGACY_INTERRUPT_BASE)
63
64bootinfo_t *bootinfo;
65
66static uint64_t iosapic_base = 0xfec00000;
67uintptr_t legacyio_virt_base = 0;
68
69/** Performs ia64-specific initialization before main_bsp() is called. */
70void arch_pre_main(void)
71{
72 init.cnt = min3(bootinfo->taskmap.cnt, TASKMAP_MAX_RECORDS,
73 CONFIG_INIT_TASKS);
74 size_t i;
75
76 for (i = 0; i < init.cnt; i++) {
77 init.tasks[i].paddr =
78 (uintptr_t) bootinfo->taskmap.tasks[i].addr;
79 init.tasks[i].size = bootinfo->taskmap.tasks[i].size;
80 str_cpy(init.tasks[i].name, CONFIG_TASK_NAME_BUFLEN,
81 bootinfo->taskmap.tasks[i].name);
82 }
83}
84
85void arch_pre_mm_init(void)
86{
87}
88
89static void iosapic_init(void)
90{
91 uintptr_t IOSAPIC = hw_map(iosapic_base, PAGE_SIZE);
92 int i;
93
94 int myid, myeid;
95
96 myid = ia64_get_cpu_id();
97 myeid = ia64_get_cpu_eid();
98
99 for (i = 0; i < 16; i++) {
100 if (i == 2)
101 continue; /* Disable Cascade interrupt */
102 ((uint32_t *)(IOSAPIC + 0x00))[0] = 0x10 + 2 * i;
103 srlz_d();
104 ((uint32_t *)(IOSAPIC + 0x10))[0] = LEGACY_INTERRUPT_BASE + i;
105 srlz_d();
106 ((uint32_t *)(IOSAPIC + 0x00))[0] = 0x10 + 2 * i + 1;
107 srlz_d();
108 ((uint32_t *)(IOSAPIC + 0x10))[0] = myid << (56 - 32) |
109 myeid << (48 - 32);
110 srlz_d();
111 }
112
113}
114
115void arch_post_mm_init(void)
116{
117 if (config.cpu_active == 1) {
118 /* Map the page with legacy I/O. */
119 legacyio_virt_base = hw_map(LEGACYIO_PHYS_BASE, LEGACYIO_SIZE);
120
121 iosapic_init();
122 irq_init(INR_COUNT, INR_COUNT);
123 }
124 it_init();
125}
126
127void arch_post_cpu_init(void){
128}
129
130void arch_pre_smp_init(void)
131{
132}
133
134void arch_post_smp_init(void)
135{
136 static const char *platform;
137
138 /* Set platform name. */
139#ifdef MACHINE_ski
140 platform = "ski";
141#endif
142#ifdef MACHINE_i460GX
143 platform = "i460GX";
144#endif
145 sysinfo_set_item_data("platform", NULL, (void *) platform,
146 str_size(platform));
147
148#ifdef MACHINE_ski
149 ski_instance_t *ski_instance = skiin_init();
150 if (ski_instance) {
151 srln_instance_t *srln_instance = srln_init();
152 if (srln_instance) {
153 indev_t *sink = stdin_wire();
154 indev_t *srln = srln_wire(srln_instance, sink);
155 skiin_wire(ski_instance, srln);
156 }
157 }
158
159 outdev_t *skidev = skiout_init();
160 if (skidev)
161 stdout_wire(skidev);
162#endif
163
164#ifdef CONFIG_EGA
165 outdev_t *egadev = ega_init(EGA_BASE, EGA_VIDEORAM);
166 if (egadev)
167 stdout_wire(egadev);
168#endif
169
170#ifdef CONFIG_NS16550
171 ns16550_instance_t *ns16550_instance
172 = ns16550_init((ns16550_t *) NS16550_BASE, NS16550_IRQ, NULL, NULL);
173 if (ns16550_instance) {
174 srln_instance_t *srln_instance = srln_init();
175 if (srln_instance) {
176 indev_t *sink = stdin_wire();
177 indev_t *srln = srln_wire(srln_instance, sink);
178 ns16550_wire(ns16550_instance, srln);
179 }
180 }
181
182 sysinfo_set_item_val("kbd", NULL, true);
183 sysinfo_set_item_val("kbd.inr", NULL, NS16550_IRQ);
184 sysinfo_set_item_val("kbd.type", NULL, KBD_NS16550);
185 sysinfo_set_item_val("kbd.address.physical", NULL,
186 (uintptr_t) NS16550_BASE);
187 sysinfo_set_item_val("kbd.address.kernel", NULL,
188 (uintptr_t) NS16550_BASE);
189#endif
190
191#ifdef CONFIG_I8042
192 i8042_instance_t *i8042_instance = i8042_init((i8042_t *) I8042_BASE, IRQ_KBD);
193 if (i8042_instance) {
194 kbrd_instance_t *kbrd_instance = kbrd_init();
195 if (kbrd_instance) {
196 indev_t *sink = stdin_wire();
197 indev_t *kbrd = kbrd_wire(kbrd_instance, sink);
198 i8042_wire(i8042_instance, kbrd);
199 }
200 }
201
202 sysinfo_set_item_val("i8042", NULL, true);
203 sysinfo_set_item_val("i8042.inr_a", NULL, IRQ_KBD);
204 sysinfo_set_item_val("i8042.inr_b", NULL, IRQ_MOUSE);
205 sysinfo_set_item_val("i8042.address.physical", NULL,
206 (uintptr_t) I8042_BASE);
207 sysinfo_set_item_val("i8042.address.kernel", NULL,
208 (uintptr_t) I8042_BASE);
209#endif
210
211 sysinfo_set_item_val("netif.ne2000.inr", NULL, IRQ_NE2000);
212
213 sysinfo_set_item_val("ia64_iospace", NULL, true);
214 sysinfo_set_item_val("ia64_iospace.address", NULL, true);
215 sysinfo_set_item_val("ia64_iospace.address.virtual", NULL, LEGACYIO_USER_BASE);
216}
217
218
219/** Enter userspace and never return. */
220void userspace(uspace_arg_t *kernel_uarg)
221{
222 psr_t psr;
223 rsc_t rsc;
224
225 psr.value = psr_read();
226 psr.cpl = PL_USER;
227 psr.i = true; /* start with interrupts enabled */
228 psr.ic = true;
229 psr.ri = 0; /* start with instruction #0 */
230 psr.bn = 1; /* start in bank 0 */
231
232 asm volatile ("mov %0 = ar.rsc\n" : "=r" (rsc.value));
233 rsc.loadrs = 0;
234 rsc.be = false;
235 rsc.pl = PL_USER;
236 rsc.mode = 3; /* eager mode */
237
238 /*
239 * Switch to userspace.
240 *
241 * When calculating stack addresses, mind the stack split between the
242 * memory stack and the RSE stack. Each occuppies STACK_SIZE / 2 bytes.
243 */
244 switch_to_userspace((uintptr_t) kernel_uarg->uspace_entry,
245 ((uintptr_t) kernel_uarg->uspace_stack) + STACK_SIZE / 2 -
246 ALIGN_UP(STACK_ITEM_SIZE, STACK_ALIGNMENT),
247 ((uintptr_t) kernel_uarg->uspace_stack) + STACK_SIZE / 2,
248 (uintptr_t) kernel_uarg->uspace_uarg, psr.value, rsc.value);
249
250 while (1)
251 ;
252}
253
254/** Set thread-local-storage pointer.
255 *
256 * We use r13 (a.k.a. tp) for this purpose.
257 */
258sysarg_t sys_tls_set(uintptr_t addr)
259{
260 return EOK;
261}
262
263void arch_reboot(void)
264{
265 pio_write_8((ioport8_t *)0x64, 0xfe);
266 while (1);
267}
268
269/** Construct function pointer
270 *
271 * @param fptr function pointer structure
272 * @param addr function address
273 * @param caller calling function address
274 *
275 * @return address of the function pointer
276 *
277 */
278void *arch_construct_function(fncptr_t *fptr, void *addr, void *caller)
279{
280 fptr->fnc = (sysarg_t) addr;
281 fptr->gp = ((sysarg_t *) caller)[1];
282
283 return (void *) fptr;
284}
285
286void irq_initialize_arch(irq_t *irq)
287{
288 (void) irq;
289}
290
291/** @}
292 */
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