1/*-
2 * Copyright (C) 2006-2012 Semihalf
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) 2006-2012 Semihalf
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/booke_machdep.c 292073 2015-12-11 01:34:13Z jhibbits $");
| 82__FBSDID("$FreeBSD: head/sys/powerpc/booke/booke_machdep.c 292903 2015-12-30 03:43:25Z jhibbits $");
|
83
84#include "opt_compat.h"
85#include "opt_ddb.h"
86#include "opt_hwpmc_hooks.h"
87#include "opt_kstack_pages.h"
88#include "opt_platform.h"
89
90#include <sys/cdefs.h>
91#include <sys/types.h>
92#include <sys/param.h>
93#include <sys/proc.h>
94#include <sys/systm.h>
95#include <sys/time.h>
96#include <sys/bio.h>
97#include <sys/buf.h>
98#include <sys/bus.h>
99#include <sys/cons.h>
100#include <sys/cpu.h>
101#include <sys/kdb.h>
102#include <sys/kernel.h>
103#include <sys/lock.h>
104#include <sys/mutex.h>
105#include <sys/rwlock.h>
106#include <sys/sysctl.h>
107#include <sys/exec.h>
108#include <sys/ktr.h>
109#include <sys/syscallsubr.h>
110#include <sys/sysproto.h>
111#include <sys/signalvar.h>
112#include <sys/sysent.h>
113#include <sys/imgact.h>
114#include <sys/msgbuf.h>
115#include <sys/ptrace.h>
116
117#include <vm/vm.h>
118#include <vm/pmap.h>
119#include <vm/vm_page.h>
120#include <vm/vm_object.h>
121#include <vm/vm_pager.h>
122
123#include <machine/cpu.h>
124#include <machine/kdb.h>
125#include <machine/reg.h>
126#include <machine/vmparam.h>
127#include <machine/spr.h>
128#include <machine/hid.h>
129#include <machine/psl.h>
130#include <machine/trap.h>
131#include <machine/md_var.h>
132#include <machine/mmuvar.h>
133#include <machine/sigframe.h>
134#include <machine/machdep.h>
135#include <machine/metadata.h>
136#include <machine/platform.h>
137
138#include <sys/linker.h>
139#include <sys/reboot.h>
140
141#include <contrib/libfdt/libfdt.h>
142#include <dev/fdt/fdt_common.h>
143#include <dev/ofw/openfirm.h>
144
145#if defined(MPC85XX) || defined(QORIQ_DPAA)
146#include <powerpc/mpc85xx/mpc85xx.h>
147#endif
148
149#ifdef DDB
150#include <ddb/ddb.h>
151#endif
152
153#ifdef DEBUG
154#define debugf(fmt, args...) printf(fmt, ##args)
155#else
156#define debugf(fmt, args...)
157#endif
158
159extern unsigned char kernel_text[];
160extern unsigned char _etext[];
161extern unsigned char _edata[];
162extern unsigned char __bss_start[];
163extern unsigned char __sbss_start[];
164extern unsigned char __sbss_end[];
165extern unsigned char _end[];
166extern vm_offset_t __endkernel;
167
168/*
169 * Bootinfo is passed to us by legacy loaders. Save the address of the
170 * structure to handle backward compatibility.
171 */
172uint32_t *bootinfo;
173
174void print_kernel_section_addr(void);
175void print_kenv(void);
176uintptr_t booke_init(uint32_t, uint32_t);
177void ivor_setup(void);
178
179extern void *interrupt_vector_base;
180extern void *int_critical_input;
181extern void *int_machine_check;
182extern void *int_data_storage;
183extern void *int_instr_storage;
184extern void *int_external_input;
185extern void *int_alignment;
186extern void *int_fpu;
187extern void *int_program;
188extern void *int_syscall;
189extern void *int_decrementer;
190extern void *int_fixed_interval_timer;
191extern void *int_watchdog;
192extern void *int_data_tlb_error;
193extern void *int_inst_tlb_error;
194extern void *int_debug;
195extern void *int_vec;
196extern void *int_vecast;
197#ifdef HWPMC_HOOKS
198extern void *int_performance_counter;
199#endif
200
201#define SET_TRAP(ivor, handler) \
202 KASSERT(((uintptr_t)(&handler) & ~0xffffUL) == \
203 ((uintptr_t)(&interrupt_vector_base) & ~0xffffUL), \
204 ("Handler " #handler " too far from interrupt vector base")); \
205 mtspr(ivor, (uintptr_t)(&handler) & 0xffffUL);
206
207uintptr_t powerpc_init(vm_offset_t fdt, vm_offset_t, vm_offset_t, void *mdp);
208void booke_cpu_init(void);
209
210void
211booke_cpu_init(void)
212{
213
214 pmap_mmu_install(MMU_TYPE_BOOKE, BUS_PROBE_GENERIC);
215}
216
217void
218ivor_setup(void)
219{
220
221 mtspr(SPR_IVPR, ((uintptr_t)&interrupt_vector_base) & 0xffff0000);
222
223 SET_TRAP(SPR_IVOR0, int_critical_input);
224 SET_TRAP(SPR_IVOR1, int_machine_check);
225 SET_TRAP(SPR_IVOR2, int_data_storage);
226 SET_TRAP(SPR_IVOR3, int_instr_storage);
227 SET_TRAP(SPR_IVOR4, int_external_input);
228 SET_TRAP(SPR_IVOR5, int_alignment);
229 SET_TRAP(SPR_IVOR6, int_program);
230 SET_TRAP(SPR_IVOR8, int_syscall);
231 SET_TRAP(SPR_IVOR10, int_decrementer);
232 SET_TRAP(SPR_IVOR11, int_fixed_interval_timer);
233 SET_TRAP(SPR_IVOR12, int_watchdog);
234 SET_TRAP(SPR_IVOR13, int_data_tlb_error);
235 SET_TRAP(SPR_IVOR14, int_inst_tlb_error);
236 SET_TRAP(SPR_IVOR15, int_debug);
237#ifdef HWPMC_HOOKS
238 SET_TRAP(SPR_IVOR35, int_performance_counter);
239#endif
240 switch ((mfpvr() >> 16) & 0xffff) {
241 case FSL_E6500:
242 SET_TRAP(SPR_IVOR32, int_vec);
243 SET_TRAP(SPR_IVOR33, int_vecast);
244 /* FALLTHROUGH */
245 case FSL_E500mc:
246 case FSL_E5500:
247 SET_TRAP(SPR_IVOR7, int_fpu);
248 }
249}
250
251static int
252booke_check_for_fdt(uint32_t arg1, vm_offset_t *dtbp)
253{
254 void *ptr;
255
256 if (arg1 % 8 != 0)
257 return (-1);
258
259 ptr = (void *)pmap_early_io_map(arg1, PAGE_SIZE);
260 if (fdt_check_header(ptr) != 0)
261 return (-1);
262
263 *dtbp = (vm_offset_t)ptr;
264
265 return (0);
266}
267
268uintptr_t
269booke_init(uint32_t arg1, uint32_t arg2)
270{
271 uintptr_t ret;
272 void *mdp;
273 vm_offset_t dtbp, end;
274
275 end = (uintptr_t)_end;
276 dtbp = (vm_offset_t)NULL;
277
278 /* Set up TLB initially */
279 bootinfo = NULL;
280 bzero(__sbss_start, __sbss_end - __sbss_start);
281 bzero(__bss_start, _end - __bss_start);
282 tlb1_init();
283
284 /*
285 * Handle the various ways we can get loaded and started:
286 * - FreeBSD's loader passes the pointer to the metadata
287 * in arg1, with arg2 undefined. arg1 has a value that's
288 * relative to the kernel's link address (i.e. larger
289 * than 0xc0000000).
290 * - Juniper's loader passes the metadata pointer in arg2
291 * and sets arg1 to zero. This is to signal that the
292 * loader maps the kernel and starts it at its link
293 * address (unlike the FreeBSD loader).
294 * - U-Boot passes the standard argc and argv parameters
295 * in arg1 and arg2 (resp). arg1 is between 1 and some
296 * relatively small number, such as 64K. arg2 is the
297 * physical address of the argv vector.
298 * - ePAPR loaders pass an FDT blob in r3 (arg1) and the magic hex
299 * string 0x45504150 ('EPAP') in r6 (which has been lost by now).
300 * r4 (arg2) is supposed to be set to zero, but is not always.
301 */
302
303 if (arg1 == 0) /* Juniper loader */
304 mdp = (void *)arg2;
305 else if (booke_check_for_fdt(arg1, &dtbp) == 0) { /* ePAPR */
306 end = roundup(end, 8);
307 memmove((void *)end, (void *)dtbp, fdt_totalsize((void *)dtbp));
308 dtbp = end;
309 end += fdt_totalsize((void *)dtbp);
310 __endkernel = end;
311 mdp = NULL;
312 } else if (arg1 > (uintptr_t)kernel_text) /* FreeBSD loader */
313 mdp = (void *)arg1;
314 else /* U-Boot */
315 mdp = NULL;
316
317 ret = powerpc_init(dtbp, 0, 0, mdp);
318
| 83
84#include "opt_compat.h"
85#include "opt_ddb.h"
86#include "opt_hwpmc_hooks.h"
87#include "opt_kstack_pages.h"
88#include "opt_platform.h"
89
90#include <sys/cdefs.h>
91#include <sys/types.h>
92#include <sys/param.h>
93#include <sys/proc.h>
94#include <sys/systm.h>
95#include <sys/time.h>
96#include <sys/bio.h>
97#include <sys/buf.h>
98#include <sys/bus.h>
99#include <sys/cons.h>
100#include <sys/cpu.h>
101#include <sys/kdb.h>
102#include <sys/kernel.h>
103#include <sys/lock.h>
104#include <sys/mutex.h>
105#include <sys/rwlock.h>
106#include <sys/sysctl.h>
107#include <sys/exec.h>
108#include <sys/ktr.h>
109#include <sys/syscallsubr.h>
110#include <sys/sysproto.h>
111#include <sys/signalvar.h>
112#include <sys/sysent.h>
113#include <sys/imgact.h>
114#include <sys/msgbuf.h>
115#include <sys/ptrace.h>
116
117#include <vm/vm.h>
118#include <vm/pmap.h>
119#include <vm/vm_page.h>
120#include <vm/vm_object.h>
121#include <vm/vm_pager.h>
122
123#include <machine/cpu.h>
124#include <machine/kdb.h>
125#include <machine/reg.h>
126#include <machine/vmparam.h>
127#include <machine/spr.h>
128#include <machine/hid.h>
129#include <machine/psl.h>
130#include <machine/trap.h>
131#include <machine/md_var.h>
132#include <machine/mmuvar.h>
133#include <machine/sigframe.h>
134#include <machine/machdep.h>
135#include <machine/metadata.h>
136#include <machine/platform.h>
137
138#include <sys/linker.h>
139#include <sys/reboot.h>
140
141#include <contrib/libfdt/libfdt.h>
142#include <dev/fdt/fdt_common.h>
143#include <dev/ofw/openfirm.h>
144
145#if defined(MPC85XX) || defined(QORIQ_DPAA)
146#include <powerpc/mpc85xx/mpc85xx.h>
147#endif
148
149#ifdef DDB
150#include <ddb/ddb.h>
151#endif
152
153#ifdef DEBUG
154#define debugf(fmt, args...) printf(fmt, ##args)
155#else
156#define debugf(fmt, args...)
157#endif
158
159extern unsigned char kernel_text[];
160extern unsigned char _etext[];
161extern unsigned char _edata[];
162extern unsigned char __bss_start[];
163extern unsigned char __sbss_start[];
164extern unsigned char __sbss_end[];
165extern unsigned char _end[];
166extern vm_offset_t __endkernel;
167
168/*
169 * Bootinfo is passed to us by legacy loaders. Save the address of the
170 * structure to handle backward compatibility.
171 */
172uint32_t *bootinfo;
173
174void print_kernel_section_addr(void);
175void print_kenv(void);
176uintptr_t booke_init(uint32_t, uint32_t);
177void ivor_setup(void);
178
179extern void *interrupt_vector_base;
180extern void *int_critical_input;
181extern void *int_machine_check;
182extern void *int_data_storage;
183extern void *int_instr_storage;
184extern void *int_external_input;
185extern void *int_alignment;
186extern void *int_fpu;
187extern void *int_program;
188extern void *int_syscall;
189extern void *int_decrementer;
190extern void *int_fixed_interval_timer;
191extern void *int_watchdog;
192extern void *int_data_tlb_error;
193extern void *int_inst_tlb_error;
194extern void *int_debug;
195extern void *int_vec;
196extern void *int_vecast;
197#ifdef HWPMC_HOOKS
198extern void *int_performance_counter;
199#endif
200
201#define SET_TRAP(ivor, handler) \
202 KASSERT(((uintptr_t)(&handler) & ~0xffffUL) == \
203 ((uintptr_t)(&interrupt_vector_base) & ~0xffffUL), \
204 ("Handler " #handler " too far from interrupt vector base")); \
205 mtspr(ivor, (uintptr_t)(&handler) & 0xffffUL);
206
207uintptr_t powerpc_init(vm_offset_t fdt, vm_offset_t, vm_offset_t, void *mdp);
208void booke_cpu_init(void);
209
210void
211booke_cpu_init(void)
212{
213
214 pmap_mmu_install(MMU_TYPE_BOOKE, BUS_PROBE_GENERIC);
215}
216
217void
218ivor_setup(void)
219{
220
221 mtspr(SPR_IVPR, ((uintptr_t)&interrupt_vector_base) & 0xffff0000);
222
223 SET_TRAP(SPR_IVOR0, int_critical_input);
224 SET_TRAP(SPR_IVOR1, int_machine_check);
225 SET_TRAP(SPR_IVOR2, int_data_storage);
226 SET_TRAP(SPR_IVOR3, int_instr_storage);
227 SET_TRAP(SPR_IVOR4, int_external_input);
228 SET_TRAP(SPR_IVOR5, int_alignment);
229 SET_TRAP(SPR_IVOR6, int_program);
230 SET_TRAP(SPR_IVOR8, int_syscall);
231 SET_TRAP(SPR_IVOR10, int_decrementer);
232 SET_TRAP(SPR_IVOR11, int_fixed_interval_timer);
233 SET_TRAP(SPR_IVOR12, int_watchdog);
234 SET_TRAP(SPR_IVOR13, int_data_tlb_error);
235 SET_TRAP(SPR_IVOR14, int_inst_tlb_error);
236 SET_TRAP(SPR_IVOR15, int_debug);
237#ifdef HWPMC_HOOKS
238 SET_TRAP(SPR_IVOR35, int_performance_counter);
239#endif
240 switch ((mfpvr() >> 16) & 0xffff) {
241 case FSL_E6500:
242 SET_TRAP(SPR_IVOR32, int_vec);
243 SET_TRAP(SPR_IVOR33, int_vecast);
244 /* FALLTHROUGH */
245 case FSL_E500mc:
246 case FSL_E5500:
247 SET_TRAP(SPR_IVOR7, int_fpu);
248 }
249}
250
251static int
252booke_check_for_fdt(uint32_t arg1, vm_offset_t *dtbp)
253{
254 void *ptr;
255
256 if (arg1 % 8 != 0)
257 return (-1);
258
259 ptr = (void *)pmap_early_io_map(arg1, PAGE_SIZE);
260 if (fdt_check_header(ptr) != 0)
261 return (-1);
262
263 *dtbp = (vm_offset_t)ptr;
264
265 return (0);
266}
267
268uintptr_t
269booke_init(uint32_t arg1, uint32_t arg2)
270{
271 uintptr_t ret;
272 void *mdp;
273 vm_offset_t dtbp, end;
274
275 end = (uintptr_t)_end;
276 dtbp = (vm_offset_t)NULL;
277
278 /* Set up TLB initially */
279 bootinfo = NULL;
280 bzero(__sbss_start, __sbss_end - __sbss_start);
281 bzero(__bss_start, _end - __bss_start);
282 tlb1_init();
283
284 /*
285 * Handle the various ways we can get loaded and started:
286 * - FreeBSD's loader passes the pointer to the metadata
287 * in arg1, with arg2 undefined. arg1 has a value that's
288 * relative to the kernel's link address (i.e. larger
289 * than 0xc0000000).
290 * - Juniper's loader passes the metadata pointer in arg2
291 * and sets arg1 to zero. This is to signal that the
292 * loader maps the kernel and starts it at its link
293 * address (unlike the FreeBSD loader).
294 * - U-Boot passes the standard argc and argv parameters
295 * in arg1 and arg2 (resp). arg1 is between 1 and some
296 * relatively small number, such as 64K. arg2 is the
297 * physical address of the argv vector.
298 * - ePAPR loaders pass an FDT blob in r3 (arg1) and the magic hex
299 * string 0x45504150 ('EPAP') in r6 (which has been lost by now).
300 * r4 (arg2) is supposed to be set to zero, but is not always.
301 */
302
303 if (arg1 == 0) /* Juniper loader */
304 mdp = (void *)arg2;
305 else if (booke_check_for_fdt(arg1, &dtbp) == 0) { /* ePAPR */
306 end = roundup(end, 8);
307 memmove((void *)end, (void *)dtbp, fdt_totalsize((void *)dtbp));
308 dtbp = end;
309 end += fdt_totalsize((void *)dtbp);
310 __endkernel = end;
311 mdp = NULL;
312 } else if (arg1 > (uintptr_t)kernel_text) /* FreeBSD loader */
313 mdp = (void *)arg1;
314 else /* U-Boot */
315 mdp = NULL;
316
317 ret = powerpc_init(dtbp, 0, 0, mdp);
318
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319 /* Enable L1 caches */
| 319 /* Default to 32 byte cache line size. */
320 switch ((mfpvr()) >> 16) {
321 case FSL_E500mc:
322 case FSL_E5500:
323 case FSL_E6500:
324 cacheline_size = 64;
325 break;
326 }
327
328 /* Enable caches */
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320 booke_enable_l1_cache();
| 329 booke_enable_l1_cache();
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| 330 booke_enable_l2_cache();
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321
| 331
|
| 332 booke_enable_bpred();
333
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322 return (ret);
323}
324
325#define RES_GRANULE 32
326extern uint32_t tlb0_miss_locks[];
327
328/* Initialise a struct pcpu. */
329void
330cpu_pcpu_init(struct pcpu *pcpu, int cpuid, size_t sz)
331{
332
333 pcpu->pc_tid_next = TID_MIN;
334
335#ifdef SMP
336 uint32_t *ptr;
337 int words_per_gran = RES_GRANULE / sizeof(uint32_t);
338
339 ptr = &tlb0_miss_locks[cpuid * words_per_gran];
340 pcpu->pc_booke_tlb_lock = ptr;
341 *ptr = TLB_UNLOCKED;
342 *(ptr + 1) = 0; /* recurse counter */
343#endif
344}
345
346/* Shutdown the CPU as much as possible. */
347void
348cpu_halt(void)
349{
350
351 mtmsr(mfmsr() & ~(PSL_CE | PSL_EE | PSL_ME | PSL_DE));
352 while (1)
353 ;
354}
355
356int
357ptrace_single_step(struct thread *td)
358{
359 struct trapframe *tf;
360
361 tf = td->td_frame;
362 tf->srr1 |= PSL_DE;
363 tf->cpu.booke.dbcr0 |= (DBCR0_IDM | DBCR0_IC);
364 return (0);
365}
366
367int
368ptrace_clear_single_step(struct thread *td)
369{
370 struct trapframe *tf;
371
372 tf = td->td_frame;
373 tf->srr1 &= ~PSL_DE;
374 tf->cpu.booke.dbcr0 &= ~(DBCR0_IDM | DBCR0_IC);
375 return (0);
376}
377
378void
379kdb_cpu_clear_singlestep(void)
380{
381 register_t r;
382
383 r = mfspr(SPR_DBCR0);
384 mtspr(SPR_DBCR0, r & ~DBCR0_IC);
385 kdb_frame->srr1 &= ~PSL_DE;
386}
387
388void
389kdb_cpu_set_singlestep(void)
390{
391 register_t r;
392
393 r = mfspr(SPR_DBCR0);
394 mtspr(SPR_DBCR0, r | DBCR0_IC | DBCR0_IDM);
395 kdb_frame->srr1 |= PSL_DE;
396}
397
| 334 return (ret);
335}
336
337#define RES_GRANULE 32
338extern uint32_t tlb0_miss_locks[];
339
340/* Initialise a struct pcpu. */
341void
342cpu_pcpu_init(struct pcpu *pcpu, int cpuid, size_t sz)
343{
344
345 pcpu->pc_tid_next = TID_MIN;
346
347#ifdef SMP
348 uint32_t *ptr;
349 int words_per_gran = RES_GRANULE / sizeof(uint32_t);
350
351 ptr = &tlb0_miss_locks[cpuid * words_per_gran];
352 pcpu->pc_booke_tlb_lock = ptr;
353 *ptr = TLB_UNLOCKED;
354 *(ptr + 1) = 0; /* recurse counter */
355#endif
356}
357
358/* Shutdown the CPU as much as possible. */
359void
360cpu_halt(void)
361{
362
363 mtmsr(mfmsr() & ~(PSL_CE | PSL_EE | PSL_ME | PSL_DE));
364 while (1)
365 ;
366}
367
368int
369ptrace_single_step(struct thread *td)
370{
371 struct trapframe *tf;
372
373 tf = td->td_frame;
374 tf->srr1 |= PSL_DE;
375 tf->cpu.booke.dbcr0 |= (DBCR0_IDM | DBCR0_IC);
376 return (0);
377}
378
379int
380ptrace_clear_single_step(struct thread *td)
381{
382 struct trapframe *tf;
383
384 tf = td->td_frame;
385 tf->srr1 &= ~PSL_DE;
386 tf->cpu.booke.dbcr0 &= ~(DBCR0_IDM | DBCR0_IC);
387 return (0);
388}
389
390void
391kdb_cpu_clear_singlestep(void)
392{
393 register_t r;
394
395 r = mfspr(SPR_DBCR0);
396 mtspr(SPR_DBCR0, r & ~DBCR0_IC);
397 kdb_frame->srr1 &= ~PSL_DE;
398}
399
400void
401kdb_cpu_set_singlestep(void)
402{
403 register_t r;
404
405 r = mfspr(SPR_DBCR0);
406 mtspr(SPR_DBCR0, r | DBCR0_IC | DBCR0_IDM);
407 kdb_frame->srr1 |= PSL_DE;
408}
409
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