1/*-
2 * Copyright (C) 2006 Semihalf, Marian Balakowicz <m8@semihalf.com>
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 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 *
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
15 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
16 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
17 * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
18 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
19 * TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
20 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
21 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
22 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
23 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
24 */
25/*-
26 * Copyright (C) 2001 Benno Rice
27 * All rights reserved.
28 *
29 * Redistribution and use in source and binary forms, with or without
30 * modification, are permitted provided that the following conditions
31 * are met:
32 * 1. Redistributions of source code must retain the above copyright
33 * notice, this list of conditions and the following disclaimer.
34 * 2. Redistributions in binary form must reproduce the above copyright
35 * notice, this list of conditions and the following disclaimer in the
36 * documentation and/or other materials provided with the distribution.
37 *
38 * THIS SOFTWARE IS PROVIDED BY Benno Rice ``AS IS'' AND ANY EXPRESS OR
39 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
40 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
41 * IN NO EVENT SHALL TOOLS GMBH BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
42 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
43 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
44 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
45 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
46 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
47 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
48 * $NetBSD: machdep.c,v 1.74.2.1 2000/11/01 16:13:48 tv Exp $
49 */
50/*-
51 * Copyright (C) 1995, 1996 Wolfgang Solfrank.
52 * Copyright (C) 1995, 1996 TooLs GmbH.
53 * All rights reserved.
54 *
55 * Redistribution and use in source and binary forms, with or without
56 * modification, are permitted provided that the following conditions
57 * are met:
58 * 1. Redistributions of source code must retain the above copyright
59 * notice, this list of conditions and the following disclaimer.
60 * 2. Redistributions in binary form must reproduce the above copyright
61 * notice, this list of conditions and the following disclaimer in the
62 * documentation and/or other materials provided with the distribution.
63 * 3. All advertising materials mentioning features or use of this software
64 * must display the following acknowledgement:
65 * This product includes software developed by TooLs GmbH.
66 * 4. The name of TooLs GmbH may not be used to endorse or promote products
67 * derived from this software without specific prior written permission.
68 *
69 * THIS SOFTWARE IS PROVIDED BY TOOLS GMBH ``AS IS'' AND ANY EXPRESS OR
70 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
71 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
72 * IN NO EVENT SHALL TOOLS GMBH BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
73 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
74 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
75 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
76 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
77 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
78 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
79 */
80
81#include <sys/cdefs.h>
| 1/*-
2 * Copyright (C) 2006 Semihalf, Marian Balakowicz <m8@semihalf.com>
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 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 *
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
15 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
16 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
17 * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
18 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
19 * TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
20 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
21 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
22 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
23 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
24 */
25/*-
26 * Copyright (C) 2001 Benno Rice
27 * All rights reserved.
28 *
29 * Redistribution and use in source and binary forms, with or without
30 * modification, are permitted provided that the following conditions
31 * are met:
32 * 1. Redistributions of source code must retain the above copyright
33 * notice, this list of conditions and the following disclaimer.
34 * 2. Redistributions in binary form must reproduce the above copyright
35 * notice, this list of conditions and the following disclaimer in the
36 * documentation and/or other materials provided with the distribution.
37 *
38 * THIS SOFTWARE IS PROVIDED BY Benno Rice ``AS IS'' AND ANY EXPRESS OR
39 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
40 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
41 * IN NO EVENT SHALL TOOLS GMBH BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
42 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
43 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
44 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
45 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
46 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
47 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
48 * $NetBSD: machdep.c,v 1.74.2.1 2000/11/01 16:13:48 tv Exp $
49 */
50/*-
51 * Copyright (C) 1995, 1996 Wolfgang Solfrank.
52 * Copyright (C) 1995, 1996 TooLs GmbH.
53 * All rights reserved.
54 *
55 * Redistribution and use in source and binary forms, with or without
56 * modification, are permitted provided that the following conditions
57 * are met:
58 * 1. Redistributions of source code must retain the above copyright
59 * notice, this list of conditions and the following disclaimer.
60 * 2. Redistributions in binary form must reproduce the above copyright
61 * notice, this list of conditions and the following disclaimer in the
62 * documentation and/or other materials provided with the distribution.
63 * 3. All advertising materials mentioning features or use of this software
64 * must display the following acknowledgement:
65 * This product includes software developed by TooLs GmbH.
66 * 4. The name of TooLs GmbH may not be used to endorse or promote products
67 * derived from this software without specific prior written permission.
68 *
69 * THIS SOFTWARE IS PROVIDED BY TOOLS GMBH ``AS IS'' AND ANY EXPRESS OR
70 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
71 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
72 * IN NO EVENT SHALL TOOLS GMBH BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
73 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
74 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
75 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
76 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
77 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
78 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
79 */
80
81#include <sys/cdefs.h>
|
82__FBSDID("$FreeBSD: head/sys/powerpc/booke/machdep.c 209613 2010-06-30 18:03:42Z jhb $");
| 82__FBSDID("$FreeBSD: head/sys/powerpc/booke/machdep.c 209908 2010-07-11 21:08:29Z raj $");
|
83
84#include "opt_compat.h"
85#include "opt_ddb.h"
86#include "opt_kstack_pages.h"
87#include "opt_msgbuf.h"
88
89#include <sys/cdefs.h>
90#include <sys/types.h>
91#include <sys/param.h>
92#include <sys/proc.h>
93#include <sys/systm.h>
94#include <sys/time.h>
95#include <sys/bio.h>
96#include <sys/buf.h>
97#include <sys/bus.h>
98#include <sys/cons.h>
99#include <sys/cpu.h>
100#include <sys/kdb.h>
101#include <sys/kernel.h>
102#include <sys/lock.h>
103#include <sys/mutex.h>
104#include <sys/sysctl.h>
105#include <sys/exec.h>
106#include <sys/ktr.h>
107#include <sys/syscallsubr.h>
108#include <sys/sysproto.h>
109#include <sys/signalvar.h>
110#include <sys/sysent.h>
111#include <sys/imgact.h>
112#include <sys/msgbuf.h>
113#include <sys/ptrace.h>
114
115#include <vm/vm.h>
116#include <vm/pmap.h>
117#include <vm/vm_page.h>
118#include <vm/vm_object.h>
119#include <vm/vm_pager.h>
120
121#include <machine/cpu.h>
122#include <machine/kdb.h>
123#include <machine/reg.h>
124#include <machine/vmparam.h>
125#include <machine/spr.h>
126#include <machine/hid.h>
127#include <machine/psl.h>
128#include <machine/trap.h>
129#include <machine/md_var.h>
130#include <machine/mmuvar.h>
131#include <machine/sigframe.h>
132#include <machine/metadata.h>
| 83
84#include "opt_compat.h"
85#include "opt_ddb.h"
86#include "opt_kstack_pages.h"
87#include "opt_msgbuf.h"
88
89#include <sys/cdefs.h>
90#include <sys/types.h>
91#include <sys/param.h>
92#include <sys/proc.h>
93#include <sys/systm.h>
94#include <sys/time.h>
95#include <sys/bio.h>
96#include <sys/buf.h>
97#include <sys/bus.h>
98#include <sys/cons.h>
99#include <sys/cpu.h>
100#include <sys/kdb.h>
101#include <sys/kernel.h>
102#include <sys/lock.h>
103#include <sys/mutex.h>
104#include <sys/sysctl.h>
105#include <sys/exec.h>
106#include <sys/ktr.h>
107#include <sys/syscallsubr.h>
108#include <sys/sysproto.h>
109#include <sys/signalvar.h>
110#include <sys/sysent.h>
111#include <sys/imgact.h>
112#include <sys/msgbuf.h>
113#include <sys/ptrace.h>
114
115#include <vm/vm.h>
116#include <vm/pmap.h>
117#include <vm/vm_page.h>
118#include <vm/vm_object.h>
119#include <vm/vm_pager.h>
120
121#include <machine/cpu.h>
122#include <machine/kdb.h>
123#include <machine/reg.h>
124#include <machine/vmparam.h>
125#include <machine/spr.h>
126#include <machine/hid.h>
127#include <machine/psl.h>
128#include <machine/trap.h>
129#include <machine/md_var.h>
130#include <machine/mmuvar.h>
131#include <machine/sigframe.h>
132#include <machine/metadata.h>
|
133#include <machine/bootinfo.h>
| |
134#include <machine/platform.h>
135
136#include <sys/linker.h>
137#include <sys/reboot.h>
138
| 133#include <machine/platform.h>
134
135#include <sys/linker.h>
136#include <sys/reboot.h>
137
|
139#include <powerpc/mpc85xx/ocpbus.h>
| 138#include <dev/fdt/fdt_common.h>
139#include <dev/ofw/openfirm.h>
140
|
140#include <powerpc/mpc85xx/mpc85xx.h>
141
142#ifdef DDB
143extern vm_offset_t ksym_start, ksym_end;
144#endif
145
146#ifdef DEBUG
147#define debugf(fmt, args...) printf(fmt, ##args)
148#else
149#define debugf(fmt, args...)
150#endif
151
152extern unsigned char kernel_text[];
153extern unsigned char _etext[];
154extern unsigned char _edata[];
155extern unsigned char __bss_start[];
156extern unsigned char __sbss_start[];
157extern unsigned char __sbss_end[];
158extern unsigned char _end[];
159
160extern void dcache_enable(void);
161extern void dcache_inval(void);
162extern void icache_enable(void);
163extern void icache_inval(void);
164
165struct kva_md_info kmi;
166struct pcpu __pcpu[MAXCPU];
167struct trapframe frame0;
168int cold = 1;
169long realmem = 0;
170long Maxmem = 0;
171
| 141#include <powerpc/mpc85xx/mpc85xx.h>
142
143#ifdef DDB
144extern vm_offset_t ksym_start, ksym_end;
145#endif
146
147#ifdef DEBUG
148#define debugf(fmt, args...) printf(fmt, ##args)
149#else
150#define debugf(fmt, args...)
151#endif
152
153extern unsigned char kernel_text[];
154extern unsigned char _etext[];
155extern unsigned char _edata[];
156extern unsigned char __bss_start[];
157extern unsigned char __sbss_start[];
158extern unsigned char __sbss_end[];
159extern unsigned char _end[];
160
161extern void dcache_enable(void);
162extern void dcache_inval(void);
163extern void icache_enable(void);
164extern void icache_inval(void);
165
166struct kva_md_info kmi;
167struct pcpu __pcpu[MAXCPU];
168struct trapframe frame0;
169int cold = 1;
170long realmem = 0;
171long Maxmem = 0;
172
|
172struct bootinfo *bootinfo;
173
| |
174char machine[] = "powerpc";
175SYSCTL_STRING(_hw, HW_MACHINE, machine, CTLFLAG_RD, machine, 0, "");
176
177int cacheline_size = 32;
178
179SYSCTL_INT(_machdep, CPU_CACHELINE, cacheline_size,
180 CTLFLAG_RD, &cacheline_size, 0, "");
181
182int hw_direct_map = 0;
183
184static void cpu_e500_startup(void *);
185SYSINIT(cpu, SI_SUB_CPU, SI_ORDER_FIRST, cpu_e500_startup, NULL);
186
187void print_kernel_section_addr(void);
| 173char machine[] = "powerpc";
174SYSCTL_STRING(_hw, HW_MACHINE, machine, CTLFLAG_RD, machine, 0, "");
175
176int cacheline_size = 32;
177
178SYSCTL_INT(_machdep, CPU_CACHELINE, cacheline_size,
179 CTLFLAG_RD, &cacheline_size, 0, "");
180
181int hw_direct_map = 0;
182
183static void cpu_e500_startup(void *);
184SYSINIT(cpu, SI_SUB_CPU, SI_ORDER_FIRST, cpu_e500_startup, NULL);
185
186void print_kernel_section_addr(void);
|
188void print_bootinfo(void);
| |
189void print_kenv(void);
190u_int e500_init(u_int32_t, u_int32_t, void *);
191
192static void
193cpu_e500_startup(void *dummy)
194{
195 int indx, size;
196
197 /* Initialise the decrementer-based clock. */
198 decr_init();
199
200 /* Good {morning,afternoon,evening,night}. */
201 cpu_setup(PCPU_GET(cpuid));
202
203 printf("real memory = %ld (%ld MB)\n", ptoa(physmem),
204 ptoa(physmem) / 1048576);
205 realmem = physmem;
206
207 /* Display any holes after the first chunk of extended memory. */
208 if (bootverbose) {
209 printf("Physical memory chunk(s):\n");
210 for (indx = 0; phys_avail[indx + 1] != 0; indx += 2) {
211 size = phys_avail[indx + 1] - phys_avail[indx];
212
213 printf("0x%08x - 0x%08x, %d bytes (%d pages)\n",
214 phys_avail[indx], phys_avail[indx + 1] - 1,
215 size, size / PAGE_SIZE);
216 }
217 }
218
219 vm_ksubmap_init(&kmi);
220
221 printf("avail memory = %ld (%ld MB)\n", ptoa(cnt.v_free_count),
222 ptoa(cnt.v_free_count) / 1048576);
223
224 /* Set up buffers, so they can be used to read disk labels. */
225 bufinit();
226 vm_pager_bufferinit();
227}
228
229static char *
230kenv_next(char *cp)
231{
232
233 if (cp != NULL) {
234 while (*cp != 0)
235 cp++;
236 cp++;
237 if (*cp == 0)
238 cp = NULL;
239 }
240 return (cp);
241}
242
243void
244print_kenv(void)
245{
246 int len;
247 char *cp;
248
249 debugf("loader passed (static) kenv:\n");
250 if (kern_envp == NULL) {
251 debugf(" no env, null ptr\n");
252 return;
253 }
254 debugf(" kern_envp = 0x%08x\n", (u_int32_t)kern_envp);
255
256 len = 0;
257 for (cp = kern_envp; cp != NULL; cp = kenv_next(cp))
258 debugf(" %x %s\n", (u_int32_t)cp, cp);
259}
260
261void
| 187void print_kenv(void);
188u_int e500_init(u_int32_t, u_int32_t, void *);
189
190static void
191cpu_e500_startup(void *dummy)
192{
193 int indx, size;
194
195 /* Initialise the decrementer-based clock. */
196 decr_init();
197
198 /* Good {morning,afternoon,evening,night}. */
199 cpu_setup(PCPU_GET(cpuid));
200
201 printf("real memory = %ld (%ld MB)\n", ptoa(physmem),
202 ptoa(physmem) / 1048576);
203 realmem = physmem;
204
205 /* Display any holes after the first chunk of extended memory. */
206 if (bootverbose) {
207 printf("Physical memory chunk(s):\n");
208 for (indx = 0; phys_avail[indx + 1] != 0; indx += 2) {
209 size = phys_avail[indx + 1] - phys_avail[indx];
210
211 printf("0x%08x - 0x%08x, %d bytes (%d pages)\n",
212 phys_avail[indx], phys_avail[indx + 1] - 1,
213 size, size / PAGE_SIZE);
214 }
215 }
216
217 vm_ksubmap_init(&kmi);
218
219 printf("avail memory = %ld (%ld MB)\n", ptoa(cnt.v_free_count),
220 ptoa(cnt.v_free_count) / 1048576);
221
222 /* Set up buffers, so they can be used to read disk labels. */
223 bufinit();
224 vm_pager_bufferinit();
225}
226
227static char *
228kenv_next(char *cp)
229{
230
231 if (cp != NULL) {
232 while (*cp != 0)
233 cp++;
234 cp++;
235 if (*cp == 0)
236 cp = NULL;
237 }
238 return (cp);
239}
240
241void
242print_kenv(void)
243{
244 int len;
245 char *cp;
246
247 debugf("loader passed (static) kenv:\n");
248 if (kern_envp == NULL) {
249 debugf(" no env, null ptr\n");
250 return;
251 }
252 debugf(" kern_envp = 0x%08x\n", (u_int32_t)kern_envp);
253
254 len = 0;
255 for (cp = kern_envp; cp != NULL; cp = kenv_next(cp))
256 debugf(" %x %s\n", (u_int32_t)cp, cp);
257}
258
259void
|
262print_bootinfo(void)
263{
264 struct bi_mem_region *mr;
265 struct bi_eth_addr *eth;
266 int i, j;
267
268 debugf("bootinfo:\n");
269 if (bootinfo == NULL) {
270 debugf(" no bootinfo, null ptr\n");
271 return;
272 }
273
274 debugf(" version = 0x%08x\n", bootinfo->bi_version);
275 debugf(" ccsrbar = 0x%08x\n", bootinfo->bi_bar_base);
276 debugf(" cpu_clk = 0x%08x\n", bootinfo->bi_cpu_clk);
277 debugf(" bus_clk = 0x%08x\n", bootinfo->bi_bus_clk);
278
279 debugf(" mem regions:\n");
280 mr = (struct bi_mem_region *)bootinfo->bi_data;
281 for (i = 0; i < bootinfo->bi_mem_reg_no; i++, mr++)
282 debugf(" #%d, base = 0x%08x, size = 0x%08x\n", i,
283 mr->mem_base, mr->mem_size);
284
285 debugf(" eth addresses:\n");
286 eth = (struct bi_eth_addr *)mr;
287 for (i = 0; i < bootinfo->bi_eth_addr_no; i++, eth++) {
288 debugf(" #%d, addr = ", i);
289 for (j = 0; j < 6; j++)
290 debugf("%02x ", eth->mac_addr[j]);
291 debugf("\n");
292 }
293}
294
295void
| |
296print_kernel_section_addr(void)
297{
298
299 debugf("kernel image addresses:\n");
300 debugf(" kernel_text = 0x%08x\n", (uint32_t)kernel_text);
301 debugf(" _etext (sdata) = 0x%08x\n", (uint32_t)_etext);
302 debugf(" _edata = 0x%08x\n", (uint32_t)_edata);
303 debugf(" __sbss_start = 0x%08x\n", (uint32_t)__sbss_start);
304 debugf(" __sbss_end = 0x%08x\n", (uint32_t)__sbss_end);
305 debugf(" __sbss_start = 0x%08x\n", (uint32_t)__bss_start);
306 debugf(" _end = 0x%08x\n", (uint32_t)_end);
307}
308
| 260print_kernel_section_addr(void)
261{
262
263 debugf("kernel image addresses:\n");
264 debugf(" kernel_text = 0x%08x\n", (uint32_t)kernel_text);
265 debugf(" _etext (sdata) = 0x%08x\n", (uint32_t)_etext);
266 debugf(" _edata = 0x%08x\n", (uint32_t)_edata);
267 debugf(" __sbss_start = 0x%08x\n", (uint32_t)__sbss_start);
268 debugf(" __sbss_end = 0x%08x\n", (uint32_t)__sbss_end);
269 debugf(" __sbss_start = 0x%08x\n", (uint32_t)__bss_start);
270 debugf(" _end = 0x%08x\n", (uint32_t)_end);
271}
272
|
309struct bi_mem_region *
310bootinfo_mr(void)
311{
312
313 return ((struct bi_mem_region *)bootinfo->bi_data);
314}
315
316struct bi_eth_addr *
317bootinfo_eth(void)
318{
319 struct bi_mem_region *mr;
320 struct bi_eth_addr *eth;
321 int i;
322
323 /* Advance to the eth section */
324 mr = bootinfo_mr();
325 for (i = 0; i < bootinfo->bi_mem_reg_no; i++, mr++)
326 ;
327
328 eth = (struct bi_eth_addr *)mr;
329 return (eth);
330}
331
| |
332u_int
333e500_init(u_int32_t startkernel, u_int32_t endkernel, void *mdp)
334{
335 struct pcpu *pc;
336 void *kmdp;
| 273u_int
274e500_init(u_int32_t startkernel, u_int32_t endkernel, void *mdp)
275{
276 struct pcpu *pc;
277 void *kmdp;
|
337 vm_offset_t end;
| 278 vm_offset_t dtbp, end;
|
338 uint32_t csr;
339
340 kmdp = NULL;
341
342 end = endkernel;
| 279 uint32_t csr;
280
281 kmdp = NULL;
282
283 end = endkernel;
|
| 284 dtbp = (vm_offset_t)NULL;
|
343
344 /*
| 285
286 /*
|
345 * Parse metadata and fetch parameters. This must be done as the first
346 * step as we need bootinfo data to at least init the console
| 287 * Parse metadata and fetch parameters.
|
347 */
348 if (mdp != NULL) {
349 preload_metadata = mdp;
350 kmdp = preload_search_by_type("elf kernel");
351 if (kmdp != NULL) {
| 288 */
289 if (mdp != NULL) {
290 preload_metadata = mdp;
291 kmdp = preload_search_by_type("elf kernel");
292 if (kmdp != NULL) {
|
352 bootinfo = (struct bootinfo *)preload_search_info(kmdp,
353 MODINFO_METADATA | MODINFOMD_BOOTINFO);
354
| |
355 boothowto = MD_FETCH(kmdp, MODINFOMD_HOWTO, int);
356 kern_envp = MD_FETCH(kmdp, MODINFOMD_ENVP, char *);
| 293 boothowto = MD_FETCH(kmdp, MODINFOMD_HOWTO, int);
294 kern_envp = MD_FETCH(kmdp, MODINFOMD_ENVP, char *);
|
| 295 dtbp = MD_FETCH(kmdp, MODINFOMD_DTBP, vm_offset_t);
|
357 end = MD_FETCH(kmdp, MODINFOMD_KERNEND, vm_offset_t);
358#ifdef DDB
359 ksym_start = MD_FETCH(kmdp, MODINFOMD_SSYM, uintptr_t);
360 ksym_end = MD_FETCH(kmdp, MODINFOMD_ESYM, uintptr_t);
361#endif
362 }
363 } else {
364 /*
| 296 end = MD_FETCH(kmdp, MODINFOMD_KERNEND, vm_offset_t);
297#ifdef DDB
298 ksym_start = MD_FETCH(kmdp, MODINFOMD_SSYM, uintptr_t);
299 ksym_end = MD_FETCH(kmdp, MODINFOMD_ESYM, uintptr_t);
300#endif
301 }
302 } else {
303 /*
|
365 * We should scream but how? - without CCSR bar (in bootinfo)
366 * cannot even output anything...
| 304 * We should scream but how? Cannot even output anything...
|
367 */
368
369 /*
370 * FIXME add return value and handle in the locore so we can
371 * return to the loader maybe? (this seems not very easy to
372 * restore everything as the TLB have all been reprogrammed
373 * in the locore etc...)
374 */
| 305 */
306
307 /*
308 * FIXME add return value and handle in the locore so we can
309 * return to the loader maybe? (this seems not very easy to
310 * restore everything as the TLB have all been reprogrammed
311 * in the locore etc...)
312 */
|
375 while(1);
| 313 while (1);
|
376 }
377
| 314 }
315
|
| 316 if (OF_install(OFW_FDT, 0) == FALSE)
317 while (1);
318
319 if (OF_init((void *)dtbp) != 0)
320 while (1);
321
322 if (fdt_immr_addr() != 0)
323 while (1);
324
325 OF_interpret("perform-fixup", 0);
326
|
378 /* Initialize TLB1 handling */
| 327 /* Initialize TLB1 handling */
|
379 tlb1_init(bootinfo->bi_bar_base);
| 328 tlb1_init(fdt_immr_pa);
|
380
381 /* Reset Time Base */
382 mttb(0);
383
384 /* Init params/tunables that can be overridden by the loader. */
385 init_param1();
386
387 /* Start initializing proc0 and thread0. */
388 proc_linkup0(&proc0, &thread0);
389 thread0.td_frame = &frame0;
390
391 /* Set up per-cpu data and store the pointer in SPR general 0. */
392 pc = &__pcpu[0];
393 pcpu_init(pc, 0, sizeof(struct pcpu));
394 pc->pc_curthread = &thread0;
395 __asm __volatile("mtsprg 0, %0" :: "r"(pc));
396
397 /* Initialize system mutexes. */
398 mutex_init();
399
400 /* Initialize the console before printing anything. */
401 cninit();
402
403 /* Print out some debug info... */
404 debugf("e500_init: console initialized\n");
405 debugf(" arg1 startkernel = 0x%08x\n", startkernel);
406 debugf(" arg2 endkernel = 0x%08x\n", endkernel);
407 debugf(" arg3 mdp = 0x%08x\n", (u_int32_t)mdp);
408 debugf(" end = 0x%08x\n", (u_int32_t)end);
409 debugf(" boothowto = 0x%08x\n", boothowto);
410 debugf(" kernel ccsrbar = 0x%08x\n", CCSRBAR_VA);
411 debugf(" MSR = 0x%08x\n", mfmsr());
412 debugf(" HID0 = 0x%08x\n", mfspr(SPR_HID0));
413 debugf(" HID1 = 0x%08x\n", mfspr(SPR_HID1));
414 debugf(" BUCSR = 0x%08x\n", mfspr(SPR_BUCSR));
415
416 __asm __volatile("msync; isync");
417 csr = ccsr_read4(OCP85XX_L2CTL);
418 debugf(" L2CTL = 0x%08x\n", csr);
419
| 329
330 /* Reset Time Base */
331 mttb(0);
332
333 /* Init params/tunables that can be overridden by the loader. */
334 init_param1();
335
336 /* Start initializing proc0 and thread0. */
337 proc_linkup0(&proc0, &thread0);
338 thread0.td_frame = &frame0;
339
340 /* Set up per-cpu data and store the pointer in SPR general 0. */
341 pc = &__pcpu[0];
342 pcpu_init(pc, 0, sizeof(struct pcpu));
343 pc->pc_curthread = &thread0;
344 __asm __volatile("mtsprg 0, %0" :: "r"(pc));
345
346 /* Initialize system mutexes. */
347 mutex_init();
348
349 /* Initialize the console before printing anything. */
350 cninit();
351
352 /* Print out some debug info... */
353 debugf("e500_init: console initialized\n");
354 debugf(" arg1 startkernel = 0x%08x\n", startkernel);
355 debugf(" arg2 endkernel = 0x%08x\n", endkernel);
356 debugf(" arg3 mdp = 0x%08x\n", (u_int32_t)mdp);
357 debugf(" end = 0x%08x\n", (u_int32_t)end);
358 debugf(" boothowto = 0x%08x\n", boothowto);
359 debugf(" kernel ccsrbar = 0x%08x\n", CCSRBAR_VA);
360 debugf(" MSR = 0x%08x\n", mfmsr());
361 debugf(" HID0 = 0x%08x\n", mfspr(SPR_HID0));
362 debugf(" HID1 = 0x%08x\n", mfspr(SPR_HID1));
363 debugf(" BUCSR = 0x%08x\n", mfspr(SPR_BUCSR));
364
365 __asm __volatile("msync; isync");
366 csr = ccsr_read4(OCP85XX_L2CTL);
367 debugf(" L2CTL = 0x%08x\n", csr);
368
|
420 print_bootinfo();
| 369 debugf(" dtbp = 0x%08x\n", (uint32_t)dtbp);
370
|
421 print_kernel_section_addr();
422 print_kenv();
423 //tlb1_print_entries();
424 //tlb1_print_tlbentries();
425
426 kdb_init();
427
428#ifdef KDB
429 if (boothowto & RB_KDB)
430 kdb_enter(KDB_WHY_BOOTFLAGS, "Boot flags requested debugger");
431#endif
432
433 /* Initialise platform module */
434 platform_probe_and_attach();
435
436 /* Initialise virtual memory. */
437 pmap_mmu_install(MMU_TYPE_BOOKE, 0);
438 pmap_bootstrap(startkernel, end);
439 debugf("MSR = 0x%08x\n", mfmsr());
440 //tlb1_print_entries();
441 //tlb1_print_tlbentries();
442
443 /* Initialize params/tunables that are derived from memsize. */
444 init_param2(physmem);
445
446 /* Finish setting up thread0. */
447 thread0.td_pcb = (struct pcb *)
448 ((thread0.td_kstack + thread0.td_kstack_pages * PAGE_SIZE -
449 sizeof(struct pcb)) & ~15);
450 bzero((void *)thread0.td_pcb, sizeof(struct pcb));
451 pc->pc_curpcb = thread0.td_pcb;
452
453 /* Initialise the message buffer. */
454 msgbufinit(msgbufp, MSGBUF_SIZE);
455
456 /* Enable Machine Check interrupt. */
457 mtmsr(mfmsr() | PSL_ME);
458 isync();
459
460 /* Enable D-cache if applicable */
461 csr = mfspr(SPR_L1CSR0);
462 if ((csr & L1CSR0_DCE) == 0) {
463 dcache_inval();
464 dcache_enable();
465 }
466
467 csr = mfspr(SPR_L1CSR0);
468 if ((boothowto & RB_VERBOSE) != 0 || (csr & L1CSR0_DCE) == 0)
469 printf("L1 D-cache %sabled\n",
470 (csr & L1CSR0_DCE) ? "en" : "dis");
471
472 /* Enable L1 I-cache if applicable. */
473 csr = mfspr(SPR_L1CSR1);
474 if ((csr & L1CSR1_ICE) == 0) {
475 icache_inval();
476 icache_enable();
477 }
478
479 csr = mfspr(SPR_L1CSR1);
480 if ((boothowto & RB_VERBOSE) != 0 || (csr & L1CSR1_ICE) == 0)
481 printf("L1 I-cache %sabled\n",
482 (csr & L1CSR1_ICE) ? "en" : "dis");
483
484 debugf("e500_init: SP = 0x%08x\n", ((uintptr_t)thread0.td_pcb - 16) & ~15);
485 debugf("e500_init: e\n");
486
487 return (((uintptr_t)thread0.td_pcb - 16) & ~15);
488}
489
490#define RES_GRANULE 32
491extern uint32_t tlb0_miss_locks[];
492
493/* Initialise a struct pcpu. */
494void
495cpu_pcpu_init(struct pcpu *pcpu, int cpuid, size_t sz)
496{
497
498 pcpu->pc_tid_next = TID_MIN;
499
500#ifdef SMP
501 uint32_t *ptr;
502 int words_per_gran = RES_GRANULE / sizeof(uint32_t);
503
504 ptr = &tlb0_miss_locks[cpuid * words_per_gran];
505 pcpu->pc_booke_tlb_lock = ptr;
506 *ptr = MTX_UNOWNED;
507 *(ptr + 1) = 0; /* recurse counter */
508#endif
509}
510
511/* Set set up registers on exec. */
512void
513exec_setregs(struct thread *td, struct image_params *imgp, u_long stack)
514{
515 struct trapframe *tf;
516 struct ps_strings arginfo;
517
518 tf = trapframe(td);
519 bzero(tf, sizeof *tf);
520 tf->fixreg[1] = -roundup(-stack + 8, 16);
521
522 /*
523 * XXX Machine-independent code has already copied arguments and
524 * XXX environment to userland. Get them back here.
525 */
526 (void)copyin((char *)PS_STRINGS, &arginfo, sizeof(arginfo));
527
528 /*
529 * Set up arguments for _start():
530 * _start(argc, argv, envp, obj, cleanup, ps_strings);
531 *
532 * Notes:
533 * - obj and cleanup are the auxilliary and termination
534 * vectors. They are fixed up by ld.elf_so.
535 * - ps_strings is a NetBSD extention, and will be
536 * ignored by executables which are strictly
537 * compliant with the SVR4 ABI.
538 *
539 * XXX We have to set both regs and retval here due to different
540 * XXX calling convention in trap.c and init_main.c.
541 */
542 /*
543 * XXX PG: these get overwritten in the syscall return code.
544 * execve() should return EJUSTRETURN, like it does on NetBSD.
545 * Emulate by setting the syscall return value cells. The
546 * registers still have to be set for init's fork trampoline.
547 */
548 td->td_retval[0] = arginfo.ps_nargvstr;
549 td->td_retval[1] = (register_t)arginfo.ps_argvstr;
550 tf->fixreg[3] = arginfo.ps_nargvstr;
551 tf->fixreg[4] = (register_t)arginfo.ps_argvstr;
552 tf->fixreg[5] = (register_t)arginfo.ps_envstr;
553 tf->fixreg[6] = 0; /* auxillary vector */
554 tf->fixreg[7] = 0; /* termination vector */
555 tf->fixreg[8] = (register_t)PS_STRINGS; /* NetBSD extension */
556
557 tf->srr0 = imgp->entry_addr;
558 tf->srr1 = PSL_USERSET;
559 td->td_pcb->pcb_flags = 0;
560}
561
562int
563fill_regs(struct thread *td, struct reg *regs)
564{
565 struct trapframe *tf;
566
567 tf = td->td_frame;
568 memcpy(regs, tf, sizeof(struct reg));
569
570 return (0);
571}
572
573int
574fill_fpregs(struct thread *td, struct fpreg *fpregs)
575{
576
577 return (0);
578}
579
580/*
581 * Flush the D-cache for non-DMA I/O so that the I-cache can
582 * be made coherent later.
583 */
584void
585cpu_flush_dcache(void *ptr, size_t len)
586{
587 /* TBD */
588}
589
590/*
591 * Construct a PCB from a trapframe. This is called from kdb_trap() where
592 * we want to start a backtrace from the function that caused us to enter
593 * the debugger. We have the context in the trapframe, but base the trace
594 * on the PCB. The PCB doesn't have to be perfect, as long as it contains
595 * enough for a backtrace.
596 */
597void
598makectx(struct trapframe *tf, struct pcb *pcb)
599{
600
601 pcb->pcb_lr = tf->srr0;
602 pcb->pcb_sp = tf->fixreg[1];
603}
604
605/*
606 * get_mcontext/sendsig helper routine that doesn't touch the
607 * proc lock.
608 */
609static int
610grab_mcontext(struct thread *td, mcontext_t *mcp, int flags)
611{
612 struct pcb *pcb;
613
614 pcb = td->td_pcb;
615 memset(mcp, 0, sizeof(mcontext_t));
616
617 mcp->mc_vers = _MC_VERSION;
618 mcp->mc_flags = 0;
619 memcpy(&mcp->mc_frame, td->td_frame, sizeof(struct trapframe));
620 if (flags & GET_MC_CLEAR_RET) {
621 mcp->mc_gpr[3] = 0;
622 mcp->mc_gpr[4] = 0;
623 }
624
625 /* XXX Altivec context ? */
626
627 mcp->mc_len = sizeof(*mcp);
628 return (0);
629}
630
631int
632get_mcontext(struct thread *td, mcontext_t *mcp, int flags)
633{
634 int error;
635
636 error = grab_mcontext(td, mcp, flags);
637 if (error == 0) {
638 PROC_LOCK(curthread->td_proc);
639 mcp->mc_onstack = sigonstack(td->td_frame->fixreg[1]);
640 PROC_UNLOCK(curthread->td_proc);
641 }
642
643 return (error);
644}
645
646int
647set_mcontext(struct thread *td, const mcontext_t *mcp)
648{
649 struct pcb *pcb;
650 struct trapframe *tf;
651
652 pcb = td->td_pcb;
653 tf = td->td_frame;
654
655 if (mcp->mc_vers != _MC_VERSION || mcp->mc_len != sizeof(*mcp))
656 return (EINVAL);
657
658 memcpy(tf, mcp->mc_frame, sizeof(mcp->mc_frame));
659
660 /* XXX Altivec context? */
661
662 return (0);
663}
664
665int
666sigreturn(struct thread *td, struct sigreturn_args *uap)
667{
668 ucontext_t uc;
669 int error;
670
671 CTR2(KTR_SIG, "sigreturn: td=%p ucp=%p", td, uap->sigcntxp);
672
673 if (copyin(uap->sigcntxp, &uc, sizeof(uc)) != 0) {
674 CTR1(KTR_SIG, "sigreturn: efault td=%p", td);
675 return (EFAULT);
676 }
677
678 error = set_mcontext(td, &uc.uc_mcontext);
679 if (error != 0)
680 return (error);
681
682 kern_sigprocmask(td, SIG_SETMASK, &uc.uc_sigmask, NULL, 0);
683
684 CTR3(KTR_SIG, "sigreturn: return td=%p pc=%#x sp=%#x",
685 td, uc.uc_mcontext.mc_srr0, uc.uc_mcontext.mc_gpr[1]);
686
687 return (EJUSTRETURN);
688}
689
690#ifdef COMPAT_FREEBSD4
691int
692freebsd4_sigreturn(struct thread *td, struct freebsd4_sigreturn_args *uap)
693{
694
695 return sigreturn(td, (struct sigreturn_args *)uap);
696}
697#endif
698
699/*
700 * cpu_idle
701 *
702 * Set Wait state enable.
703 */
704void
705cpu_idle (int busy)
706{
707 register_t msr;
708
709 msr = mfmsr();
710
711#ifdef INVARIANTS
712 if ((msr & PSL_EE) != PSL_EE) {
713 struct thread *td = curthread;
714 printf("td msr %x\n", td->td_md.md_saved_msr);
715 panic("ints disabled in idleproc!");
716 }
717#endif
718
719 /* Freescale E500 core RM section 6.4.1. */
720 msr = msr | PSL_WE;
721 __asm __volatile("msync; mtmsr %0; isync" :: "r" (msr));
722}
723
724int
725cpu_idle_wakeup(int cpu)
726{
727
728 return (0);
729}
730
731void
732spinlock_enter(void)
733{
734 struct thread *td;
735
736 td = curthread;
737 if (td->td_md.md_spinlock_count == 0)
738 td->td_md.md_saved_msr = intr_disable();
739 td->td_md.md_spinlock_count++;
740 critical_enter();
741}
742
743void
744spinlock_exit(void)
745{
746 struct thread *td;
747
748 td = curthread;
749 critical_exit();
750 td->td_md.md_spinlock_count--;
751 if (td->td_md.md_spinlock_count == 0)
752 intr_restore(td->td_md.md_saved_msr);
753}
754
755/* Shutdown the CPU as much as possible. */
756void
757cpu_halt(void)
758{
759
760 mtmsr(mfmsr() & ~(PSL_CE | PSL_EE | PSL_ME | PSL_DE));
761 while (1);
762}
763
764int
765set_regs(struct thread *td, struct reg *regs)
766{
767 struct trapframe *tf;
768
769 tf = td->td_frame;
770 memcpy(tf, regs, sizeof(struct reg));
771 return (0);
772}
773
774int
775fill_dbregs(struct thread *td, struct dbreg *dbregs)
776{
777
778 /* No debug registers on PowerPC */
779 return (ENOSYS);
780}
781
782int
783set_dbregs(struct thread *td, struct dbreg *dbregs)
784{
785
786 /* No debug registers on PowerPC */
787 return (ENOSYS);
788}
789
790int
791set_fpregs(struct thread *td, struct fpreg *fpregs)
792{
793
794 return (0);
795}
796
797int
798ptrace_set_pc(struct thread *td, unsigned long addr)
799{
800 struct trapframe *tf;
801
802 tf = td->td_frame;
803 tf->srr0 = (register_t)addr;
804
805 return (0);
806}
807
808int
809ptrace_single_step(struct thread *td)
810{
811 struct trapframe *tf;
812
813 tf = td->td_frame;
814 tf->srr1 |= PSL_DE;
815 tf->cpu.booke.dbcr0 |= (DBCR0_IDM | DBCR0_IC);
816 return (0);
817}
818
819int
820ptrace_clear_single_step(struct thread *td)
821{
822 struct trapframe *tf;
823
824 tf = td->td_frame;
825 tf->srr1 &= ~PSL_DE;
826 tf->cpu.booke.dbcr0 &= ~(DBCR0_IDM | DBCR0_IC);
827 return (0);
828}
829
830void
831kdb_cpu_clear_singlestep(void)
832{
833 register_t r;
834
835 r = mfspr(SPR_DBCR0);
836 mtspr(SPR_DBCR0, r & ~DBCR0_IC);
837 kdb_frame->srr1 &= ~PSL_DE;
838}
839
840void
841kdb_cpu_set_singlestep(void)
842{
843 register_t r;
844
845 r = mfspr(SPR_DBCR0);
846 mtspr(SPR_DBCR0, r | DBCR0_IC | DBCR0_IDM);
847 kdb_frame->srr1 |= PSL_DE;
848}
849
850void
851sendsig(sig_t catcher, ksiginfo_t *ksi, sigset_t *mask)
852{
853 struct trapframe *tf;
854 struct sigframe *sfp;
855 struct sigacts *psp;
856 struct sigframe sf;
857 struct thread *td;
858 struct proc *p;
859 int oonstack, rndfsize;
860 int sig, code;
861
862 td = curthread;
863 p = td->td_proc;
864 PROC_LOCK_ASSERT(p, MA_OWNED);
865 sig = ksi->ksi_signo;
866 code = ksi->ksi_code;
867 psp = p->p_sigacts;
868 mtx_assert(&psp->ps_mtx, MA_OWNED);
869 tf = td->td_frame;
870 oonstack = sigonstack(tf->fixreg[1]);
871
872 rndfsize = ((sizeof(sf) + 15) / 16) * 16;
873
874 CTR4(KTR_SIG, "sendsig: td=%p (%s) catcher=%p sig=%d", td, p->p_comm,
875 catcher, sig);
876
877 /*
878 * Save user context
879 */
880 memset(&sf, 0, sizeof(sf));
881 grab_mcontext(td, &sf.sf_uc.uc_mcontext, 0);
882 sf.sf_uc.uc_sigmask = *mask;
883 sf.sf_uc.uc_stack = td->td_sigstk;
884 sf.sf_uc.uc_stack.ss_flags = (td->td_pflags & TDP_ALTSTACK)
885 ? ((oonstack) ? SS_ONSTACK : 0) : SS_DISABLE;
886
887 sf.sf_uc.uc_mcontext.mc_onstack = (oonstack) ? 1 : 0;
888
889 /*
890 * Allocate and validate space for the signal handler context.
891 */
892 if ((td->td_pflags & TDP_ALTSTACK) != 0 && !oonstack &&
893 SIGISMEMBER(psp->ps_sigonstack, sig)) {
894 sfp = (struct sigframe *)((caddr_t)td->td_sigstk.ss_sp +
895 td->td_sigstk.ss_size - rndfsize);
896 } else {
897 sfp = (struct sigframe *)(tf->fixreg[1] - rndfsize);
898 }
899
900 /*
901 * Translate the signal if appropriate (Linux emu ?)
902 */
903 if (p->p_sysent->sv_sigtbl && sig <= p->p_sysent->sv_sigsize)
904 sig = p->p_sysent->sv_sigtbl[_SIG_IDX(sig)];
905
906 /*
907 * Save the floating-point state, if necessary, then copy it.
908 */
909 /* XXX */
910
911 /*
912 * Set up the registers to return to sigcode.
913 *
914 * r1/sp - sigframe ptr
915 * lr - sig function, dispatched to by blrl in trampoline
916 * r3 - sig number
917 * r4 - SIGINFO ? &siginfo : exception code
918 * r5 - user context
919 * srr0 - trampoline function addr
920 */
921 tf->lr = (register_t)catcher;
922 tf->fixreg[1] = (register_t)sfp;
923 tf->fixreg[FIRSTARG] = sig;
924 tf->fixreg[FIRSTARG+2] = (register_t)&sfp->sf_uc;
925 if (SIGISMEMBER(psp->ps_siginfo, sig)) {
926 /*
927 * Signal handler installed with SA_SIGINFO.
928 */
929 tf->fixreg[FIRSTARG+1] = (register_t)&sfp->sf_si;
930
931 /*
932 * Fill siginfo structure.
933 */
934 sf.sf_si = ksi->ksi_info;
935 sf.sf_si.si_signo = sig;
936 sf.sf_si.si_addr = (void *) ((tf->exc == EXC_DSI) ?
937 tf->cpu.booke.dear : tf->srr0);
938 } else {
939 /* Old FreeBSD-style arguments. */
940 tf->fixreg[FIRSTARG+1] = code;
941 tf->fixreg[FIRSTARG+3] = (tf->exc == EXC_DSI) ?
942 tf->cpu.booke.dear : tf->srr0;
943 }
944 mtx_unlock(&psp->ps_mtx);
945 PROC_UNLOCK(p);
946
947 tf->srr0 = (register_t)(PS_STRINGS - *(p->p_sysent->sv_szsigcode));
948
949 /*
950 * copy the frame out to userland.
951 */
952 if (copyout((caddr_t)&sf, (caddr_t)sfp, sizeof(sf)) != 0) {
953 /*
954 * Process has trashed its stack. Kill it.
955 */
956 CTR2(KTR_SIG, "sendsig: sigexit td=%p sfp=%p", td, sfp);
957 PROC_LOCK(p);
958 sigexit(td, SIGILL);
959 }
960
961 CTR3(KTR_SIG, "sendsig: return td=%p pc=%#x sp=%#x", td,
962 tf->srr0, tf->fixreg[1]);
963
964 PROC_LOCK(p);
965 mtx_lock(&psp->ps_mtx);
966}
967
968void
969bzero(void *buf, size_t len)
970{
971 caddr_t p;
972
973 p = buf;
974
975 while (((vm_offset_t) p & (sizeof(u_long) - 1)) && len) {
976 *p++ = 0;
977 len--;
978 }
979
980 while (len >= sizeof(u_long) * 8) {
981 *(u_long*) p = 0;
982 *((u_long*) p + 1) = 0;
983 *((u_long*) p + 2) = 0;
984 *((u_long*) p + 3) = 0;
985 len -= sizeof(u_long) * 8;
986 *((u_long*) p + 4) = 0;
987 *((u_long*) p + 5) = 0;
988 *((u_long*) p + 6) = 0;
989 *((u_long*) p + 7) = 0;
990 p += sizeof(u_long) * 8;
991 }
992
993 while (len >= sizeof(u_long)) {
994 *(u_long*) p = 0;
995 len -= sizeof(u_long);
996 p += sizeof(u_long);
997 }
998
999 while (len) {
1000 *p++ = 0;
1001 len--;
1002 }
1003}
1004
1005/*
1006 * XXX what is the better/proper place for this routine?
1007 */
1008int
1009mem_valid(vm_offset_t addr, int len)
1010{
1011
1012 return (1);
1013}
| 371 print_kernel_section_addr();
372 print_kenv();
373 //tlb1_print_entries();
374 //tlb1_print_tlbentries();
375
376 kdb_init();
377
378#ifdef KDB
379 if (boothowto & RB_KDB)
380 kdb_enter(KDB_WHY_BOOTFLAGS, "Boot flags requested debugger");
381#endif
382
383 /* Initialise platform module */
384 platform_probe_and_attach();
385
386 /* Initialise virtual memory. */
387 pmap_mmu_install(MMU_TYPE_BOOKE, 0);
388 pmap_bootstrap(startkernel, end);
389 debugf("MSR = 0x%08x\n", mfmsr());
390 //tlb1_print_entries();
391 //tlb1_print_tlbentries();
392
393 /* Initialize params/tunables that are derived from memsize. */
394 init_param2(physmem);
395
396 /* Finish setting up thread0. */
397 thread0.td_pcb = (struct pcb *)
398 ((thread0.td_kstack + thread0.td_kstack_pages * PAGE_SIZE -
399 sizeof(struct pcb)) & ~15);
400 bzero((void *)thread0.td_pcb, sizeof(struct pcb));
401 pc->pc_curpcb = thread0.td_pcb;
402
403 /* Initialise the message buffer. */
404 msgbufinit(msgbufp, MSGBUF_SIZE);
405
406 /* Enable Machine Check interrupt. */
407 mtmsr(mfmsr() | PSL_ME);
408 isync();
409
410 /* Enable D-cache if applicable */
411 csr = mfspr(SPR_L1CSR0);
412 if ((csr & L1CSR0_DCE) == 0) {
413 dcache_inval();
414 dcache_enable();
415 }
416
417 csr = mfspr(SPR_L1CSR0);
418 if ((boothowto & RB_VERBOSE) != 0 || (csr & L1CSR0_DCE) == 0)
419 printf("L1 D-cache %sabled\n",
420 (csr & L1CSR0_DCE) ? "en" : "dis");
421
422 /* Enable L1 I-cache if applicable. */
423 csr = mfspr(SPR_L1CSR1);
424 if ((csr & L1CSR1_ICE) == 0) {
425 icache_inval();
426 icache_enable();
427 }
428
429 csr = mfspr(SPR_L1CSR1);
430 if ((boothowto & RB_VERBOSE) != 0 || (csr & L1CSR1_ICE) == 0)
431 printf("L1 I-cache %sabled\n",
432 (csr & L1CSR1_ICE) ? "en" : "dis");
433
434 debugf("e500_init: SP = 0x%08x\n", ((uintptr_t)thread0.td_pcb - 16) & ~15);
435 debugf("e500_init: e\n");
436
437 return (((uintptr_t)thread0.td_pcb - 16) & ~15);
438}
439
440#define RES_GRANULE 32
441extern uint32_t tlb0_miss_locks[];
442
443/* Initialise a struct pcpu. */
444void
445cpu_pcpu_init(struct pcpu *pcpu, int cpuid, size_t sz)
446{
447
448 pcpu->pc_tid_next = TID_MIN;
449
450#ifdef SMP
451 uint32_t *ptr;
452 int words_per_gran = RES_GRANULE / sizeof(uint32_t);
453
454 ptr = &tlb0_miss_locks[cpuid * words_per_gran];
455 pcpu->pc_booke_tlb_lock = ptr;
456 *ptr = MTX_UNOWNED;
457 *(ptr + 1) = 0; /* recurse counter */
458#endif
459}
460
461/* Set set up registers on exec. */
462void
463exec_setregs(struct thread *td, struct image_params *imgp, u_long stack)
464{
465 struct trapframe *tf;
466 struct ps_strings arginfo;
467
468 tf = trapframe(td);
469 bzero(tf, sizeof *tf);
470 tf->fixreg[1] = -roundup(-stack + 8, 16);
471
472 /*
473 * XXX Machine-independent code has already copied arguments and
474 * XXX environment to userland. Get them back here.
475 */
476 (void)copyin((char *)PS_STRINGS, &arginfo, sizeof(arginfo));
477
478 /*
479 * Set up arguments for _start():
480 * _start(argc, argv, envp, obj, cleanup, ps_strings);
481 *
482 * Notes:
483 * - obj and cleanup are the auxilliary and termination
484 * vectors. They are fixed up by ld.elf_so.
485 * - ps_strings is a NetBSD extention, and will be
486 * ignored by executables which are strictly
487 * compliant with the SVR4 ABI.
488 *
489 * XXX We have to set both regs and retval here due to different
490 * XXX calling convention in trap.c and init_main.c.
491 */
492 /*
493 * XXX PG: these get overwritten in the syscall return code.
494 * execve() should return EJUSTRETURN, like it does on NetBSD.
495 * Emulate by setting the syscall return value cells. The
496 * registers still have to be set for init's fork trampoline.
497 */
498 td->td_retval[0] = arginfo.ps_nargvstr;
499 td->td_retval[1] = (register_t)arginfo.ps_argvstr;
500 tf->fixreg[3] = arginfo.ps_nargvstr;
501 tf->fixreg[4] = (register_t)arginfo.ps_argvstr;
502 tf->fixreg[5] = (register_t)arginfo.ps_envstr;
503 tf->fixreg[6] = 0; /* auxillary vector */
504 tf->fixreg[7] = 0; /* termination vector */
505 tf->fixreg[8] = (register_t)PS_STRINGS; /* NetBSD extension */
506
507 tf->srr0 = imgp->entry_addr;
508 tf->srr1 = PSL_USERSET;
509 td->td_pcb->pcb_flags = 0;
510}
511
512int
513fill_regs(struct thread *td, struct reg *regs)
514{
515 struct trapframe *tf;
516
517 tf = td->td_frame;
518 memcpy(regs, tf, sizeof(struct reg));
519
520 return (0);
521}
522
523int
524fill_fpregs(struct thread *td, struct fpreg *fpregs)
525{
526
527 return (0);
528}
529
530/*
531 * Flush the D-cache for non-DMA I/O so that the I-cache can
532 * be made coherent later.
533 */
534void
535cpu_flush_dcache(void *ptr, size_t len)
536{
537 /* TBD */
538}
539
540/*
541 * Construct a PCB from a trapframe. This is called from kdb_trap() where
542 * we want to start a backtrace from the function that caused us to enter
543 * the debugger. We have the context in the trapframe, but base the trace
544 * on the PCB. The PCB doesn't have to be perfect, as long as it contains
545 * enough for a backtrace.
546 */
547void
548makectx(struct trapframe *tf, struct pcb *pcb)
549{
550
551 pcb->pcb_lr = tf->srr0;
552 pcb->pcb_sp = tf->fixreg[1];
553}
554
555/*
556 * get_mcontext/sendsig helper routine that doesn't touch the
557 * proc lock.
558 */
559static int
560grab_mcontext(struct thread *td, mcontext_t *mcp, int flags)
561{
562 struct pcb *pcb;
563
564 pcb = td->td_pcb;
565 memset(mcp, 0, sizeof(mcontext_t));
566
567 mcp->mc_vers = _MC_VERSION;
568 mcp->mc_flags = 0;
569 memcpy(&mcp->mc_frame, td->td_frame, sizeof(struct trapframe));
570 if (flags & GET_MC_CLEAR_RET) {
571 mcp->mc_gpr[3] = 0;
572 mcp->mc_gpr[4] = 0;
573 }
574
575 /* XXX Altivec context ? */
576
577 mcp->mc_len = sizeof(*mcp);
578 return (0);
579}
580
581int
582get_mcontext(struct thread *td, mcontext_t *mcp, int flags)
583{
584 int error;
585
586 error = grab_mcontext(td, mcp, flags);
587 if (error == 0) {
588 PROC_LOCK(curthread->td_proc);
589 mcp->mc_onstack = sigonstack(td->td_frame->fixreg[1]);
590 PROC_UNLOCK(curthread->td_proc);
591 }
592
593 return (error);
594}
595
596int
597set_mcontext(struct thread *td, const mcontext_t *mcp)
598{
599 struct pcb *pcb;
600 struct trapframe *tf;
601
602 pcb = td->td_pcb;
603 tf = td->td_frame;
604
605 if (mcp->mc_vers != _MC_VERSION || mcp->mc_len != sizeof(*mcp))
606 return (EINVAL);
607
608 memcpy(tf, mcp->mc_frame, sizeof(mcp->mc_frame));
609
610 /* XXX Altivec context? */
611
612 return (0);
613}
614
615int
616sigreturn(struct thread *td, struct sigreturn_args *uap)
617{
618 ucontext_t uc;
619 int error;
620
621 CTR2(KTR_SIG, "sigreturn: td=%p ucp=%p", td, uap->sigcntxp);
622
623 if (copyin(uap->sigcntxp, &uc, sizeof(uc)) != 0) {
624 CTR1(KTR_SIG, "sigreturn: efault td=%p", td);
625 return (EFAULT);
626 }
627
628 error = set_mcontext(td, &uc.uc_mcontext);
629 if (error != 0)
630 return (error);
631
632 kern_sigprocmask(td, SIG_SETMASK, &uc.uc_sigmask, NULL, 0);
633
634 CTR3(KTR_SIG, "sigreturn: return td=%p pc=%#x sp=%#x",
635 td, uc.uc_mcontext.mc_srr0, uc.uc_mcontext.mc_gpr[1]);
636
637 return (EJUSTRETURN);
638}
639
640#ifdef COMPAT_FREEBSD4
641int
642freebsd4_sigreturn(struct thread *td, struct freebsd4_sigreturn_args *uap)
643{
644
645 return sigreturn(td, (struct sigreturn_args *)uap);
646}
647#endif
648
649/*
650 * cpu_idle
651 *
652 * Set Wait state enable.
653 */
654void
655cpu_idle (int busy)
656{
657 register_t msr;
658
659 msr = mfmsr();
660
661#ifdef INVARIANTS
662 if ((msr & PSL_EE) != PSL_EE) {
663 struct thread *td = curthread;
664 printf("td msr %x\n", td->td_md.md_saved_msr);
665 panic("ints disabled in idleproc!");
666 }
667#endif
668
669 /* Freescale E500 core RM section 6.4.1. */
670 msr = msr | PSL_WE;
671 __asm __volatile("msync; mtmsr %0; isync" :: "r" (msr));
672}
673
674int
675cpu_idle_wakeup(int cpu)
676{
677
678 return (0);
679}
680
681void
682spinlock_enter(void)
683{
684 struct thread *td;
685
686 td = curthread;
687 if (td->td_md.md_spinlock_count == 0)
688 td->td_md.md_saved_msr = intr_disable();
689 td->td_md.md_spinlock_count++;
690 critical_enter();
691}
692
693void
694spinlock_exit(void)
695{
696 struct thread *td;
697
698 td = curthread;
699 critical_exit();
700 td->td_md.md_spinlock_count--;
701 if (td->td_md.md_spinlock_count == 0)
702 intr_restore(td->td_md.md_saved_msr);
703}
704
705/* Shutdown the CPU as much as possible. */
706void
707cpu_halt(void)
708{
709
710 mtmsr(mfmsr() & ~(PSL_CE | PSL_EE | PSL_ME | PSL_DE));
711 while (1);
712}
713
714int
715set_regs(struct thread *td, struct reg *regs)
716{
717 struct trapframe *tf;
718
719 tf = td->td_frame;
720 memcpy(tf, regs, sizeof(struct reg));
721 return (0);
722}
723
724int
725fill_dbregs(struct thread *td, struct dbreg *dbregs)
726{
727
728 /* No debug registers on PowerPC */
729 return (ENOSYS);
730}
731
732int
733set_dbregs(struct thread *td, struct dbreg *dbregs)
734{
735
736 /* No debug registers on PowerPC */
737 return (ENOSYS);
738}
739
740int
741set_fpregs(struct thread *td, struct fpreg *fpregs)
742{
743
744 return (0);
745}
746
747int
748ptrace_set_pc(struct thread *td, unsigned long addr)
749{
750 struct trapframe *tf;
751
752 tf = td->td_frame;
753 tf->srr0 = (register_t)addr;
754
755 return (0);
756}
757
758int
759ptrace_single_step(struct thread *td)
760{
761 struct trapframe *tf;
762
763 tf = td->td_frame;
764 tf->srr1 |= PSL_DE;
765 tf->cpu.booke.dbcr0 |= (DBCR0_IDM | DBCR0_IC);
766 return (0);
767}
768
769int
770ptrace_clear_single_step(struct thread *td)
771{
772 struct trapframe *tf;
773
774 tf = td->td_frame;
775 tf->srr1 &= ~PSL_DE;
776 tf->cpu.booke.dbcr0 &= ~(DBCR0_IDM | DBCR0_IC);
777 return (0);
778}
779
780void
781kdb_cpu_clear_singlestep(void)
782{
783 register_t r;
784
785 r = mfspr(SPR_DBCR0);
786 mtspr(SPR_DBCR0, r & ~DBCR0_IC);
787 kdb_frame->srr1 &= ~PSL_DE;
788}
789
790void
791kdb_cpu_set_singlestep(void)
792{
793 register_t r;
794
795 r = mfspr(SPR_DBCR0);
796 mtspr(SPR_DBCR0, r | DBCR0_IC | DBCR0_IDM);
797 kdb_frame->srr1 |= PSL_DE;
798}
799
800void
801sendsig(sig_t catcher, ksiginfo_t *ksi, sigset_t *mask)
802{
803 struct trapframe *tf;
804 struct sigframe *sfp;
805 struct sigacts *psp;
806 struct sigframe sf;
807 struct thread *td;
808 struct proc *p;
809 int oonstack, rndfsize;
810 int sig, code;
811
812 td = curthread;
813 p = td->td_proc;
814 PROC_LOCK_ASSERT(p, MA_OWNED);
815 sig = ksi->ksi_signo;
816 code = ksi->ksi_code;
817 psp = p->p_sigacts;
818 mtx_assert(&psp->ps_mtx, MA_OWNED);
819 tf = td->td_frame;
820 oonstack = sigonstack(tf->fixreg[1]);
821
822 rndfsize = ((sizeof(sf) + 15) / 16) * 16;
823
824 CTR4(KTR_SIG, "sendsig: td=%p (%s) catcher=%p sig=%d", td, p->p_comm,
825 catcher, sig);
826
827 /*
828 * Save user context
829 */
830 memset(&sf, 0, sizeof(sf));
831 grab_mcontext(td, &sf.sf_uc.uc_mcontext, 0);
832 sf.sf_uc.uc_sigmask = *mask;
833 sf.sf_uc.uc_stack = td->td_sigstk;
834 sf.sf_uc.uc_stack.ss_flags = (td->td_pflags & TDP_ALTSTACK)
835 ? ((oonstack) ? SS_ONSTACK : 0) : SS_DISABLE;
836
837 sf.sf_uc.uc_mcontext.mc_onstack = (oonstack) ? 1 : 0;
838
839 /*
840 * Allocate and validate space for the signal handler context.
841 */
842 if ((td->td_pflags & TDP_ALTSTACK) != 0 && !oonstack &&
843 SIGISMEMBER(psp->ps_sigonstack, sig)) {
844 sfp = (struct sigframe *)((caddr_t)td->td_sigstk.ss_sp +
845 td->td_sigstk.ss_size - rndfsize);
846 } else {
847 sfp = (struct sigframe *)(tf->fixreg[1] - rndfsize);
848 }
849
850 /*
851 * Translate the signal if appropriate (Linux emu ?)
852 */
853 if (p->p_sysent->sv_sigtbl && sig <= p->p_sysent->sv_sigsize)
854 sig = p->p_sysent->sv_sigtbl[_SIG_IDX(sig)];
855
856 /*
857 * Save the floating-point state, if necessary, then copy it.
858 */
859 /* XXX */
860
861 /*
862 * Set up the registers to return to sigcode.
863 *
864 * r1/sp - sigframe ptr
865 * lr - sig function, dispatched to by blrl in trampoline
866 * r3 - sig number
867 * r4 - SIGINFO ? &siginfo : exception code
868 * r5 - user context
869 * srr0 - trampoline function addr
870 */
871 tf->lr = (register_t)catcher;
872 tf->fixreg[1] = (register_t)sfp;
873 tf->fixreg[FIRSTARG] = sig;
874 tf->fixreg[FIRSTARG+2] = (register_t)&sfp->sf_uc;
875 if (SIGISMEMBER(psp->ps_siginfo, sig)) {
876 /*
877 * Signal handler installed with SA_SIGINFO.
878 */
879 tf->fixreg[FIRSTARG+1] = (register_t)&sfp->sf_si;
880
881 /*
882 * Fill siginfo structure.
883 */
884 sf.sf_si = ksi->ksi_info;
885 sf.sf_si.si_signo = sig;
886 sf.sf_si.si_addr = (void *) ((tf->exc == EXC_DSI) ?
887 tf->cpu.booke.dear : tf->srr0);
888 } else {
889 /* Old FreeBSD-style arguments. */
890 tf->fixreg[FIRSTARG+1] = code;
891 tf->fixreg[FIRSTARG+3] = (tf->exc == EXC_DSI) ?
892 tf->cpu.booke.dear : tf->srr0;
893 }
894 mtx_unlock(&psp->ps_mtx);
895 PROC_UNLOCK(p);
896
897 tf->srr0 = (register_t)(PS_STRINGS - *(p->p_sysent->sv_szsigcode));
898
899 /*
900 * copy the frame out to userland.
901 */
902 if (copyout((caddr_t)&sf, (caddr_t)sfp, sizeof(sf)) != 0) {
903 /*
904 * Process has trashed its stack. Kill it.
905 */
906 CTR2(KTR_SIG, "sendsig: sigexit td=%p sfp=%p", td, sfp);
907 PROC_LOCK(p);
908 sigexit(td, SIGILL);
909 }
910
911 CTR3(KTR_SIG, "sendsig: return td=%p pc=%#x sp=%#x", td,
912 tf->srr0, tf->fixreg[1]);
913
914 PROC_LOCK(p);
915 mtx_lock(&psp->ps_mtx);
916}
917
918void
919bzero(void *buf, size_t len)
920{
921 caddr_t p;
922
923 p = buf;
924
925 while (((vm_offset_t) p & (sizeof(u_long) - 1)) && len) {
926 *p++ = 0;
927 len--;
928 }
929
930 while (len >= sizeof(u_long) * 8) {
931 *(u_long*) p = 0;
932 *((u_long*) p + 1) = 0;
933 *((u_long*) p + 2) = 0;
934 *((u_long*) p + 3) = 0;
935 len -= sizeof(u_long) * 8;
936 *((u_long*) p + 4) = 0;
937 *((u_long*) p + 5) = 0;
938 *((u_long*) p + 6) = 0;
939 *((u_long*) p + 7) = 0;
940 p += sizeof(u_long) * 8;
941 }
942
943 while (len >= sizeof(u_long)) {
944 *(u_long*) p = 0;
945 len -= sizeof(u_long);
946 p += sizeof(u_long);
947 }
948
949 while (len) {
950 *p++ = 0;
951 len--;
952 }
953}
954
955/*
956 * XXX what is the better/proper place for this routine?
957 */
958int
959mem_valid(vm_offset_t addr, int len)
960{
961
962 return (1);
963}
|