source: mainline/kernel/arch/ia64/src/ia64.c@ d8db519

lfn serial ticket/834-toolchain-update topic/msim-upgrade topic/simplify-dev-export
Last change on this file since d8db519 was d8db519, checked in by Martin Decky <martin@…>, 14 years ago

update syscall prototypes
cleanup includes
  • Property mode set to 100644
File size: 7.3 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 <genarch/drivers/ega/ega.h>
48#include <genarch/drivers/i8042/i8042.h>
49#include <genarch/drivers/ns16550/ns16550.h>
50#include <genarch/drivers/legacy/ia32/io.h>
51#include <genarch/kbrd/kbrd.h>
52#include <genarch/srln/srln.h>
53
54/* NS16550 as a COM 1 */
55#define NS16550_IRQ (4 + LEGACY_INTERRUPT_BASE)
56
57bootinfo_t *bootinfo;
58
59static uint64_t iosapic_base = 0xfec00000;
60
61/** Performs ia64-specific initialization before main_bsp() is called. */
62void arch_pre_main(void)
63{
64 init.cnt = min3(bootinfo->taskmap.cnt, TASKMAP_MAX_RECORDS, CONFIG_INIT_TASKS);
65 size_t i;
66 for (i = 0; i < init.cnt; i++) {
67 init.tasks[i].addr =
68 ((unsigned long) bootinfo->taskmap.tasks[i].addr) |
69 VRN_MASK;
70 init.tasks[i].size = bootinfo->taskmap.tasks[i].size;
71 str_cpy(init.tasks[i].name, CONFIG_TASK_NAME_BUFLEN,
72 bootinfo->taskmap.tasks[i].name);
73 }
74}
75
76void arch_pre_mm_init(void)
77{
78}
79
80static void iosapic_init(void)
81{
82 uint64_t IOSAPIC = PA2KA((sysarg_t)(iosapic_base)) | FW_OFFSET;
83 int i;
84
85 int myid, myeid;
86
87 myid = ia64_get_cpu_id();
88 myeid = ia64_get_cpu_eid();
89
90 for (i = 0; i < 16; i++) {
91 if (i == 2)
92 continue; /* Disable Cascade interrupt */
93 ((uint32_t *)(IOSAPIC + 0x00))[0] = 0x10 + 2 * i;
94 srlz_d();
95 ((uint32_t *)(IOSAPIC + 0x10))[0] = LEGACY_INTERRUPT_BASE + i;
96 srlz_d();
97 ((uint32_t *)(IOSAPIC + 0x00))[0] = 0x10 + 2 * i + 1;
98 srlz_d();
99 ((uint32_t *)(IOSAPIC + 0x10))[0] = myid << (56 - 32) |
100 myeid << (48 - 32);
101 srlz_d();
102 }
103
104}
105
106void arch_post_mm_init(void)
107{
108 if (config.cpu_active == 1) {
109 iosapic_init();
110 irq_init(INR_COUNT, INR_COUNT);
111 }
112 it_init();
113}
114
115void arch_post_cpu_init(void)
116{
117}
118
119void arch_pre_smp_init(void)
120{
121}
122
123void arch_post_smp_init(void)
124{
125 static const char *platform;
126
127 /* Set platform name. */
128#ifdef MACHINE_ski
129 platform = "ski";
130#endif
131#ifdef MACHINE_i460GX
132 platform = "i460GX";
133#endif
134 sysinfo_set_item_data("platform", NULL, (void *) platform,
135 str_size(platform));
136
137#ifdef MACHINE_ski
138 ski_instance_t *ski_instance = skiin_init();
139 if (ski_instance) {
140 srln_instance_t *srln_instance = srln_init();
141 if (srln_instance) {
142 indev_t *sink = stdin_wire();
143 indev_t *srln = srln_wire(srln_instance, sink);
144 skiin_wire(ski_instance, srln);
145 }
146 }
147
148 outdev_t *skidev = skiout_init();
149 if (skidev)
150 stdout_wire(skidev);
151#endif
152
153#ifdef CONFIG_EGA
154 outdev_t *egadev = ega_init(EGA_BASE, EGA_VIDEORAM);
155 if (egadev)
156 stdout_wire(egadev);
157#endif
158
159#ifdef CONFIG_NS16550
160 ns16550_instance_t *ns16550_instance
161 = ns16550_init((ns16550_t *) NS16550_BASE, NS16550_IRQ, NULL, NULL);
162 if (ns16550_instance) {
163 srln_instance_t *srln_instance = srln_init();
164 if (srln_instance) {
165 indev_t *sink = stdin_wire();
166 indev_t *srln = srln_wire(srln_instance, sink);
167 ns16550_wire(ns16550_instance, srln);
168 }
169 }
170
171 sysinfo_set_item_val("kbd", NULL, true);
172 sysinfo_set_item_val("kbd.inr", NULL, NS16550_IRQ);
173 sysinfo_set_item_val("kbd.type", NULL, KBD_NS16550);
174 sysinfo_set_item_val("kbd.address.physical", NULL,
175 (uintptr_t) NS16550_BASE);
176 sysinfo_set_item_val("kbd.address.kernel", NULL,
177 (uintptr_t) NS16550_BASE);
178#endif
179
180#ifdef CONFIG_I8042
181 i8042_instance_t *i8042_instance = i8042_init((i8042_t *) I8042_BASE, IRQ_KBD);
182 if (i8042_instance) {
183 kbrd_instance_t *kbrd_instance = kbrd_init();
184 if (kbrd_instance) {
185 indev_t *sink = stdin_wire();
186 indev_t *kbrd = kbrd_wire(kbrd_instance, sink);
187 i8042_wire(i8042_instance, kbrd);
188 }
189 }
190
191 sysinfo_set_item_val("i8042", NULL, true);
192 sysinfo_set_item_val("i8042.inr_a", NULL, IRQ_KBD);
193 sysinfo_set_item_val("i8042.inr_b", NULL, IRQ_MOUSE);
194 sysinfo_set_item_val("i8042.address.physical", NULL,
195 (uintptr_t) I8042_BASE);
196 sysinfo_set_item_val("i8042.address.kernel", NULL,
197 (uintptr_t) I8042_BASE);
198#endif
199
200 sysinfo_set_item_val("netif.ne2000.inr", NULL, IRQ_NE2000);
201
202 sysinfo_set_item_val("ia64_iospace", NULL, true);
203 sysinfo_set_item_val("ia64_iospace.address", NULL, true);
204 sysinfo_set_item_val("ia64_iospace.address.virtual", NULL, IO_OFFSET);
205}
206
207
208/** Enter userspace and never return. */
209void userspace(uspace_arg_t *kernel_uarg)
210{
211 psr_t psr;
212 rsc_t rsc;
213
214 psr.value = psr_read();
215 psr.cpl = PL_USER;
216 psr.i = true; /* start with interrupts enabled */
217 psr.ic = true;
218 psr.ri = 0; /* start with instruction #0 */
219 psr.bn = 1; /* start in bank 0 */
220
221 asm volatile ("mov %0 = ar.rsc\n" : "=r" (rsc.value));
222 rsc.loadrs = 0;
223 rsc.be = false;
224 rsc.pl = PL_USER;
225 rsc.mode = 3; /* eager mode */
226
227 /*
228 * Switch to userspace.
229 *
230 * When calculating stack addresses, mind the stack split between the
231 * memory stack and the RSE stack. Each occuppies STACK_SIZE / 2 bytes.
232 */
233 switch_to_userspace((uintptr_t) kernel_uarg->uspace_entry,
234 ((uintptr_t) kernel_uarg->uspace_stack) + STACK_SIZE / 2 -
235 ALIGN_UP(STACK_ITEM_SIZE, STACK_ALIGNMENT),
236 ((uintptr_t) kernel_uarg->uspace_stack) + STACK_SIZE / 2,
237 (uintptr_t) kernel_uarg->uspace_uarg, psr.value, rsc.value);
238
239 while (1)
240 ;
241}
242
243/** Set thread-local-storage pointer.
244 *
245 * We use r13 (a.k.a. tp) for this purpose.
246 */
247sysarg_t sys_tls_set(uintptr_t addr)
248{
249 return EOK;
250}
251
252void arch_reboot(void)
253{
254 pio_write_8((ioport8_t *)0x64, 0xfe);
255 while (1);
256}
257
258/** Construct function pointer
259 *
260 * @param fptr function pointer structure
261 * @param addr function address
262 * @param caller calling function address
263 *
264 * @return address of the function pointer
265 *
266 */
267void *arch_construct_function(fncptr_t *fptr, void *addr, void *caller)
268{
269 fptr->fnc = (sysarg_t) addr;
270 fptr->gp = ((sysarg_t *) caller)[1];
271
272 return (void *) fptr;
273}
274
275void irq_initialize_arch(irq_t *irq)
276{
277 (void) irq;
278}
279
280/** @}
281 */
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