source: mainline/kernel/arch/ia64/src/ia64.c@ af9dd1e

lfn serial ticket/834-toolchain-update topic/msim-upgrade topic/simplify-dev-export
Last change on this file since af9dd1e was af9dd1e, checked in by Jakub Jermar <jakub@…>, 9 years ago

Remove SYS_TLS_SET
  • Property mode set to 100644
File size: 7.1 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 <arch/interrupt.h>
40#include <macros.h>
41#include <str.h>
42#include <userspace.h>
43#include <console/console.h>
44#include <syscall/syscall.h>
45#include <sysinfo/sysinfo.h>
46#include <arch/drivers/it.h>
47#include <arch/drivers/kbd.h>
48#include <arch/legacyio.h>
49#include <genarch/drivers/ega/ega.h>
50#include <genarch/drivers/i8042/i8042.h>
51#include <genarch/drivers/ns16550/ns16550.h>
52#include <genarch/drivers/legacy/ia32/io.h>
53#include <genarch/kbrd/kbrd.h>
54#include <genarch/srln/srln.h>
55#include <mm/page.h>
56#include <mm/km.h>
57
58#ifdef MACHINE_ski
59#include <arch/drivers/ski.h>
60#endif
61
62/* NS16550 as a COM 1 */
63#define NS16550_IRQ (4 + LEGACY_INTERRUPT_BASE)
64
65bootinfo_t *bootinfo;
66
67static uint64_t iosapic_base = 0xfec00000;
68uintptr_t legacyio_virt_base = 0;
69
70/** Performs ia64-specific initialization before main_bsp() is called. */
71void arch_pre_main(void)
72{
73 init.cnt = min3(bootinfo->taskmap.cnt, TASKMAP_MAX_RECORDS,
74 CONFIG_INIT_TASKS);
75 size_t i;
76
77 for (i = 0; i < init.cnt; i++) {
78 init.tasks[i].paddr =
79 (uintptr_t) bootinfo->taskmap.tasks[i].addr;
80 init.tasks[i].size = bootinfo->taskmap.tasks[i].size;
81 str_cpy(init.tasks[i].name, CONFIG_TASK_NAME_BUFLEN,
82 bootinfo->taskmap.tasks[i].name);
83 }
84}
85
86void arch_pre_mm_init(void)
87{
88 if (config.cpu_active == 1)
89 exception_init();
90}
91
92static void iosapic_init(void)
93{
94 uintptr_t IOSAPIC = km_map(iosapic_base, PAGE_SIZE,
95 PAGE_WRITE | PAGE_NOT_CACHEABLE);
96 int i;
97
98 int myid, myeid;
99
100 myid = ia64_get_cpu_id();
101 myeid = ia64_get_cpu_eid();
102
103 for (i = 0; i < 16; i++) {
104 if (i == 2)
105 continue; /* Disable Cascade interrupt */
106 ((uint32_t *)(IOSAPIC + 0x00))[0] = 0x10 + 2 * i;
107 srlz_d();
108 ((uint32_t *)(IOSAPIC + 0x10))[0] = LEGACY_INTERRUPT_BASE + i;
109 srlz_d();
110 ((uint32_t *)(IOSAPIC + 0x00))[0] = 0x10 + 2 * i + 1;
111 srlz_d();
112 ((uint32_t *)(IOSAPIC + 0x10))[0] = myid << (56 - 32) |
113 myeid << (48 - 32);
114 srlz_d();
115 }
116
117}
118
119void arch_post_mm_init(void)
120{
121 if (config.cpu_active == 1) {
122 /* Map the page with legacy I/O. */
123 legacyio_virt_base = km_map(LEGACYIO_PHYS_BASE, LEGACYIO_SIZE,
124 PAGE_WRITE | PAGE_NOT_CACHEABLE);
125
126 iosapic_init();
127 irq_init(INR_COUNT, INR_COUNT);
128 }
129 it_init();
130}
131
132void arch_post_cpu_init(void)
133{
134}
135
136void arch_pre_smp_init(void)
137{
138}
139
140void arch_post_smp_init(void)
141{
142 static const char *platform;
143
144 /* Set platform name. */
145#ifdef MACHINE_ski
146 platform = "ski";
147#endif
148#ifdef MACHINE_i460GX
149 platform = "pc";
150#endif
151 sysinfo_set_item_data("platform", NULL, (void *) platform,
152 str_size(platform));
153
154#ifdef MACHINE_ski
155 ski_instance_t *ski_instance = skiin_init();
156 if (ski_instance) {
157 srln_instance_t *srln_instance = srln_init();
158 if (srln_instance) {
159 indev_t *sink = stdin_wire();
160 indev_t *srln = srln_wire(srln_instance, sink);
161 skiin_wire(ski_instance, srln);
162 }
163 }
164
165 outdev_t *skidev = skiout_init();
166 if (skidev)
167 stdout_wire(skidev);
168#endif
169
170#ifdef CONFIG_EGA
171 outdev_t *egadev = ega_init(EGA_BASE, EGA_VIDEORAM);
172 if (egadev)
173 stdout_wire(egadev);
174#endif
175
176#ifdef CONFIG_NS16550
177 ns16550_instance_t *ns16550_instance
178 = ns16550_init((ns16550_t *) NS16550_BASE, NS16550_IRQ, NULL, NULL,
179 NULL);
180 if (ns16550_instance) {
181 srln_instance_t *srln_instance = srln_init();
182 if (srln_instance) {
183 indev_t *sink = stdin_wire();
184 indev_t *srln = srln_wire(srln_instance, sink);
185 ns16550_wire(ns16550_instance, srln);
186 }
187 }
188
189 sysinfo_set_item_val("kbd", NULL, true);
190 sysinfo_set_item_val("kbd.inr", NULL, NS16550_IRQ);
191 sysinfo_set_item_val("kbd.type", NULL, KBD_NS16550);
192 sysinfo_set_item_val("kbd.address.physical", NULL,
193 (uintptr_t) NS16550_BASE);
194#endif
195
196#ifdef CONFIG_I8042
197 i8042_instance_t *i8042_instance = i8042_init((i8042_t *) I8042_BASE,
198 IRQ_KBD);
199 if (i8042_instance) {
200 kbrd_instance_t *kbrd_instance = kbrd_init();
201 if (kbrd_instance) {
202 indev_t *sink = stdin_wire();
203 indev_t *kbrd = kbrd_wire(kbrd_instance, sink);
204 i8042_wire(i8042_instance, kbrd);
205 }
206 }
207#endif
208
209 sysinfo_set_item_val("ia64_iospace", NULL, true);
210 sysinfo_set_item_val("ia64_iospace.address", NULL, true);
211 sysinfo_set_item_val("ia64_iospace.address.virtual", NULL, LEGACYIO_USER_BASE);
212}
213
214
215/** Enter userspace and never return. */
216void userspace(uspace_arg_t *kernel_uarg)
217{
218 psr_t psr;
219 rsc_t rsc;
220
221 psr.value = psr_read();
222 psr.cpl = PL_USER;
223 psr.i = true; /* start with interrupts enabled */
224 psr.ic = true;
225 psr.ri = 0; /* start with instruction #0 */
226 psr.bn = 1; /* start in bank 0 */
227
228 asm volatile ("mov %0 = ar.rsc\n" : "=r" (rsc.value));
229 rsc.loadrs = 0;
230 rsc.be = false;
231 rsc.pl = PL_USER;
232 rsc.mode = 3; /* eager mode */
233
234 /*
235 * Switch to userspace.
236 *
237 * When calculating stack addresses, mind the stack split between the
238 * memory stack and the RSE stack. Each occuppies
239 * uspace_stack_size / 2 bytes.
240 */
241 switch_to_userspace((uintptr_t) kernel_uarg->uspace_entry,
242 ((uintptr_t) kernel_uarg->uspace_stack) +
243 kernel_uarg->uspace_stack_size / 2 -
244 ALIGN_UP(STACK_ITEM_SIZE, STACK_ALIGNMENT),
245 ((uintptr_t) kernel_uarg->uspace_stack) +
246 kernel_uarg->uspace_stack_size / 2,
247 (uintptr_t) kernel_uarg->uspace_uarg, psr.value, rsc.value);
248
249 while (1);
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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