More missed named fixups related to the include directory move.
[dragonfly.git] / sys / platform / pc32 / acpica5 / acpi_wakeup.c
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1/*-
2 * Copyright (c) 2001 Takanori Watanabe <takawata@jp.freebsd.org>
3 * Copyright (c) 2001 Mitsuru IWASAKI <iwasaki@jp.freebsd.org>
4 * All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * 2. 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 *
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
25 * SUCH DAMAGE.
26 *
27 * $FreeBSD: src/sys/i386/acpica/acpi_wakeup.c,v 1.30 2003/11/03 22:18:57 jhb Exp $
28 * $DragonFly: src/sys/platform/pc32/acpica5/acpi_wakeup.c,v 1.1 2004/02/21 06:48:05 dillon Exp $
29 */
30
31#include <sys/param.h>
32#include <sys/systm.h>
33#include <sys/kernel.h>
34#include <sys/bus.h>
35#include <sys/lock.h>
36#include <sys/proc.h>
37#include <sys/sysctl.h>
38
39#include <vm/vm.h>
40#include <vm/vm_param.h>
41#include <vm/pmap.h>
42#include <vm/vm_object.h>
43#include <vm/vm_page.h>
44#include <vm/vm_map.h>
45#include <vm/vm_kern.h>
46#include <vm/vm_extern.h>
47
48#include <machine/bus.h>
49#include <machine/cpufunc.h>
50#include <machine/segments.h>
51
52#include "acpi.h"
53#include <dev/acpica/acpivar.h>
54
55#include "acpi_wakecode.h"
56
57#if __FreeBSD_version < 500000
58#define vm_page_lock_queues()
59#define vm_page_unlock_queues()
60#endif
61
62extern uint32_t acpi_reset_video;
63extern void initializecpu(void);
64
65static struct region_descriptor r_idt, r_gdt, *p_gdt;
66static u_int16_t r_ldt;
67
68static u_int32_t r_eax, r_ebx, r_ecx, r_edx, r_ebp, r_esi, r_edi,
69 r_efl, r_cr0, r_cr2, r_cr3, r_cr4, ret_addr;
70
71static u_int16_t r_cs, r_ds, r_es, r_fs, r_gs, r_ss, r_tr;
72static u_int32_t r_esp = 0;
73
74static void acpi_printcpu(void);
75static void acpi_realmodeinst(void *arg, bus_dma_segment_t *segs,
76 int nsegs, int error);
77static void acpi_alloc_wakeup_handler(void);
78
79/* XXX shut gcc up */
80extern int acpi_savecpu(void);
81extern int acpi_restorecpu(void);
82
83#ifdef __GNUC__
84__asm__(" \n\
85 .text \n\
86 .p2align 2, 0x90 \n\
87 .type acpi_restorecpu, @function\n\
88acpi_restorecpu: \n\
89 .align 4 \n\
90 movl r_eax,%eax \n\
91 movl r_ebx,%ebx \n\
92 movl r_ecx,%ecx \n\
93 movl r_edx,%edx \n\
94 movl r_ebp,%ebp \n\
95 movl r_esi,%esi \n\
96 movl r_edi,%edi \n\
97 movl r_esp,%esp \n\
98 \n\
99 pushl r_efl \n\
100 popfl \n\
101 \n\
102 movl ret_addr,%eax \n\
103 movl %eax,(%esp) \n\
104 xorl %eax,%eax \n\
105 ret \n\
106 \n\
107 .text \n\
108 .p2align 2, 0x90 \n\
109 .type acpi_savecpu, @function \n\
110acpi_savecpu: \n\
111 movw %cs,r_cs \n\
112 movw %ds,r_ds \n\
113 movw %es,r_es \n\
114 movw %fs,r_fs \n\
115 movw %gs,r_gs \n\
116 movw %ss,r_ss \n\
117 \n\
118 movl %eax,r_eax \n\
119 movl %ebx,r_ebx \n\
120 movl %ecx,r_ecx \n\
121 movl %edx,r_edx \n\
122 movl %ebp,r_ebp \n\
123 movl %esi,r_esi \n\
124 movl %edi,r_edi \n\
125 \n\
126 movl %cr0,%eax \n\
127 movl %eax,r_cr0 \n\
128 movl %cr2,%eax \n\
129 movl %eax,r_cr2 \n\
130 movl %cr3,%eax \n\
131 movl %eax,r_cr3 \n\
132 movl %cr4,%eax \n\
133 movl %eax,r_cr4 \n\
134 \n\
135 pushfl \n\
136 popl r_efl \n\
137 \n\
138 movl %esp,r_esp \n\
139 \n\
140 sgdt r_gdt \n\
141 sidt r_idt \n\
142 sldt r_ldt \n\
143 str r_tr \n\
144 \n\
145 movl (%esp),%eax \n\
146 movl %eax,ret_addr \n\
147 movl $1,%eax \n\
148 ret \n\
149");
150#endif /* __GNUC__ */
151
152static void
153acpi_printcpu(void)
154{
155 printf("======== acpi_printcpu() debug dump ========\n");
156 printf("gdt[%04x:%08x] idt[%04x:%08x] ldt[%04x] tr[%04x] efl[%08x]\n",
157 r_gdt.rd_limit, r_gdt.rd_base, r_idt.rd_limit, r_idt.rd_base,
158 r_ldt, r_tr, r_efl);
159 printf("eax[%08x] ebx[%08x] ecx[%08x] edx[%08x]\n",
160 r_eax, r_ebx, r_ecx, r_edx);
161 printf("esi[%08x] edi[%08x] ebp[%08x] esp[%08x]\n",
162 r_esi, r_edi, r_ebp, r_esp);
163 printf("cr0[%08x] cr2[%08x] cr3[%08x] cr4[%08x]\n",
164 r_cr0, r_cr2, r_cr3, r_cr4);
165 printf("cs[%04x] ds[%04x] es[%04x] fs[%04x] gs[%04x] ss[%04x]\n",
166 r_cs, r_ds, r_es, r_fs, r_gs, r_ss);
167}
168
169#define WAKECODE_FIXUP(offset, type, val) do { \
170 void **addr; \
171 addr = (void **)(sc->acpi_wakeaddr + offset); \
172 (type *)*addr = val; \
173} while (0)
174
175#define WAKECODE_BCOPY(offset, type, val) do { \
176 void **addr; \
177 addr = (void **)(sc->acpi_wakeaddr + offset); \
178 bcopy(&(val), addr, sizeof(type)); \
179} while (0)
180
181int
182acpi_sleep_machdep(struct acpi_softc *sc, int state)
183{
184 ACPI_STATUS status;
185 vm_paddr_t oldphys;
186 struct pmap *pm;
187 vm_page_t page;
188 static vm_page_t opage = NULL;
189 int ret = 0;
190 u_int32_t cr3;
191 u_long ef;
192 struct proc *p;
193
194 if (sc->acpi_wakeaddr == 0)
195 return (0);
196
197 AcpiSetFirmwareWakingVector(sc->acpi_wakephys);
198
199 ef = read_eflags();
200 ACPI_DISABLE_IRQS();
201
202 /* Create Identity Mapping */
203 if ((p = curproc) == NULL)
204 p = &proc0;
205 pm = vmspace_pmap(p->p_vmspace);
206 cr3 = rcr3();
207#ifdef PAE
208 load_cr3(vtophys(pm->pm_pdpt));
209#else
210 load_cr3(vtophys(pm->pm_pdir));
211#endif
212
213 oldphys = pmap_extract(pm, sc->acpi_wakephys);
214 if (oldphys)
215 opage = PHYS_TO_VM_PAGE(oldphys);
216 page = PHYS_TO_VM_PAGE(sc->acpi_wakephys);
217 pmap_enter(pm, sc->acpi_wakephys, page,
218 VM_PROT_READ | VM_PROT_WRITE | VM_PROT_EXECUTE, 1);
219
220 ret_addr = 0;
221 if (acpi_savecpu()) {
222 /* Execute Sleep */
223 cpu_disable_intr();
224
225 p_gdt = (struct region_descriptor *)
226 (sc->acpi_wakeaddr + physical_gdt);
227 p_gdt->rd_limit = r_gdt.rd_limit;
228 p_gdt->rd_base = vtophys(r_gdt.rd_base);
229
230 WAKECODE_FIXUP(physical_esp, u_int32_t, vtophys(r_esp));
231 WAKECODE_FIXUP(previous_cr0, u_int32_t, r_cr0);
232 WAKECODE_FIXUP(previous_cr2, u_int32_t, r_cr2);
233 WAKECODE_FIXUP(previous_cr3, u_int32_t, r_cr3);
234 WAKECODE_FIXUP(previous_cr4, u_int32_t, r_cr4);
235
236 WAKECODE_FIXUP(reset_video, u_int32_t, acpi_reset_video);
237
238 WAKECODE_FIXUP(previous_tr, u_int16_t, r_tr);
239 WAKECODE_BCOPY(previous_gdt, struct region_descriptor, r_gdt);
240 WAKECODE_FIXUP(previous_ldt, u_int16_t, r_ldt);
241 WAKECODE_BCOPY(previous_idt, struct region_descriptor, r_idt);
242
243 WAKECODE_FIXUP(where_to_recover, void, acpi_restorecpu);
244
245 WAKECODE_FIXUP(previous_ds, u_int16_t, r_ds);
246 WAKECODE_FIXUP(previous_es, u_int16_t, r_es);
247 WAKECODE_FIXUP(previous_fs, u_int16_t, r_fs);
248 WAKECODE_FIXUP(previous_gs, u_int16_t, r_gs);
249 WAKECODE_FIXUP(previous_ss, u_int16_t, r_ss);
250
251 if (acpi_get_verbose(sc))
252 acpi_printcpu();
253
254 /* Call ACPICA to enter the desired sleep state */
255 if (state == ACPI_STATE_S4 && sc->acpi_s4bios)
256 status = AcpiEnterSleepStateS4bios();
257 else
258 status = AcpiEnterSleepState(state);
259
260 if (status != AE_OK) {
261 device_printf(sc->acpi_dev,
262 "AcpiEnterSleepState failed - %s\n",
263 AcpiFormatException(status));
264 ret = -1;
265 goto out;
266 }
267
268 for (;;) ;
269 } else {
270 /* Execute Wakeup */
271#if 0
272 initializecpu();
273#endif
274 cpu_enable_intr();
275
276 if (acpi_get_verbose(sc)) {
277 acpi_savecpu();
278 acpi_printcpu();
279 }
280 }
281
282out:
283 vm_page_lock_queues();
284 pmap_remove(pm, sc->acpi_wakephys, sc->acpi_wakephys + PAGE_SIZE);
285 vm_page_unlock_queues();
286 if (opage) {
287 pmap_enter(pm, sc->acpi_wakephys, page,
288 VM_PROT_READ | VM_PROT_WRITE, 0);
289 }
290
291 load_cr3(cr3);
292
293 write_eflags(ef);
294
295 return (ret);
296}
297
298static bus_dma_tag_t acpi_waketag;
299static bus_dmamap_t acpi_wakemap;
300static vm_offset_t acpi_wakeaddr = 0;
301
302static void
303acpi_alloc_wakeup_handler(void)
304{
305 if (!cold)
306 return;
307
308 if (bus_dma_tag_create(/* parent */ NULL, /* alignment */ 2, 0,
309 /* lowaddr below 1MB */ 0x9ffff,
310 /* highaddr */ BUS_SPACE_MAXADDR, NULL, NULL,
311 PAGE_SIZE, 1, PAGE_SIZE, 0, &acpi_waketag) != 0) {
312 printf("acpi_alloc_wakeup_handler: can't create wake tag\n");
313 return;
314 }
315
316 if (bus_dmamem_alloc(acpi_waketag, (void **)&acpi_wakeaddr,
317 BUS_DMA_NOWAIT, &acpi_wakemap)) {
318 printf("acpi_alloc_wakeup_handler: can't alloc wake memory\n");
319 return;
320 }
321}
322
323SYSINIT(acpiwakeup, SI_SUB_KMEM, SI_ORDER_ANY, acpi_alloc_wakeup_handler, 0)
324
325static void
326acpi_realmodeinst(void *arg, bus_dma_segment_t *segs, int nsegs, int error)
327{
328 struct acpi_softc *sc = arg;
329 u_int32_t *addr;
330
331 addr = (u_int32_t *)&wakecode[wakeup_sw32 + 2];
332 *addr = segs[0].ds_addr + wakeup_32;
333 bcopy(wakecode, (void *)sc->acpi_wakeaddr, sizeof(wakecode));
334 sc->acpi_wakephys = segs[0].ds_addr;
335}
336
337void
338acpi_install_wakeup_handler(struct acpi_softc *sc)
339{
340 if (acpi_wakeaddr == 0)
341 return;
342
343 sc->acpi_waketag = acpi_waketag;
344 sc->acpi_wakeaddr = acpi_wakeaddr;
345 sc->acpi_wakemap = acpi_wakemap;
346
347 bus_dmamap_load(sc->acpi_waketag, sc->acpi_wakemap,
348 (void *)sc->acpi_wakeaddr, PAGE_SIZE,
349 acpi_realmodeinst, sc, 0);
350}