summaryrefslogtreecommitdiff
path: root/arch/powerpc/platforms/ps3/setup.c
blob: 6244bc849469e33af7dcc5a4ac2b21dd970ac1c6 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
/*
 *  PS3 platform setup routines.
 *
 *  Copyright (C) 2006 Sony Computer Entertainment Inc.
 *  Copyright 2006 Sony Corp.
 *
 *  This program is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation; version 2 of the License.
 *
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with this program; if not, write to the Free Software
 *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */

#include <linux/kernel.h>
#include <linux/delay.h>
#include <linux/fs.h>
#include <linux/root_dev.h>
#include <linux/console.h>
#include <linux/export.h>
#include <linux/bootmem.h>

#include <asm/machdep.h>
#include <asm/firmware.h>
#include <asm/time.h>
#include <asm/iommu.h>
#include <asm/udbg.h>
#include <asm/prom.h>
#include <asm/lv1call.h>
#include <asm/ps3gpu.h>

#include "platform.h"

#if defined(DEBUG)
#define DBG udbg_printf
#else
#define DBG pr_debug
#endif

/* mutex synchronizing GPU accesses and video mode changes */
DEFINE_MUTEX(ps3_gpu_mutex);
EXPORT_SYMBOL_GPL(ps3_gpu_mutex);

static union ps3_firmware_version ps3_firmware_version;

void ps3_get_firmware_version(union ps3_firmware_version *v)
{
	*v = ps3_firmware_version;
}
EXPORT_SYMBOL_GPL(ps3_get_firmware_version);

int ps3_compare_firmware_version(u16 major, u16 minor, u16 rev)
{
	union ps3_firmware_version x;

	x.pad = 0;
	x.major = major;
	x.minor = minor;
	x.rev = rev;

	return (ps3_firmware_version.raw > x.raw) -
	       (ps3_firmware_version.raw < x.raw);
}
EXPORT_SYMBOL_GPL(ps3_compare_firmware_version);

static void ps3_power_save(void)
{
	/*
	 * lv1_pause() puts the PPE thread into inactive state until an
	 * irq on an unmasked plug exists. MSR[EE] has no effect.
	 * flags: 0 = wake on DEC interrupt, 1 = ignore DEC interrupt.
	 */

	lv1_pause(0);
}

static void __noreturn ps3_restart(char *cmd)
{
	DBG("%s:%d cmd '%s'\n", __func__, __LINE__, cmd);

	smp_send_stop();
	ps3_sys_manager_restart(); /* never returns */
}

static void ps3_power_off(void)
{
	DBG("%s:%d\n", __func__, __LINE__);

	smp_send_stop();
	ps3_sys_manager_power_off(); /* never returns */
}

static void __noreturn ps3_halt(void)
{
	DBG("%s:%d\n", __func__, __LINE__);

	smp_send_stop();
	ps3_sys_manager_halt(); /* never returns */
}

static void ps3_panic(char *str)
{
	DBG("%s:%d %s\n", __func__, __LINE__, str);

	smp_send_stop();
	printk("\n");
	printk("   System does not reboot automatically.\n");
	printk("   Please press POWER button.\n");
	printk("\n");

	while(1)
		lv1_pause(1);
}

#if defined(CONFIG_FB_PS3) || defined(CONFIG_FB_PS3_MODULE) || \
    defined(CONFIG_PS3_FLASH) || defined(CONFIG_PS3_FLASH_MODULE)
static void __init prealloc(struct ps3_prealloc *p)
{
	if (!p->size)
		return;

	p->address = memblock_virt_alloc(p->size, p->align);

	printk(KERN_INFO "%s: %lu bytes at %p\n", p->name, p->size,
	       p->address);
}
#endif

#if defined(CONFIG_FB_PS3) || defined(CONFIG_FB_PS3_MODULE)
struct ps3_prealloc ps3fb_videomemory = {
	.name = "ps3fb videomemory",
	.size = CONFIG_FB_PS3_DEFAULT_SIZE_M*1024*1024,
	.align = 1024*1024		/* the GPU requires 1 MiB alignment */
};
EXPORT_SYMBOL_GPL(ps3fb_videomemory);
#define prealloc_ps3fb_videomemory()	prealloc(&ps3fb_videomemory)

static int __init early_parse_ps3fb(char *p)
{
	if (!p)
		return 1;

	ps3fb_videomemory.size = _ALIGN_UP(memparse(p, &p),
					   ps3fb_videomemory.align);
	return 0;
}
early_param("ps3fb", early_parse_ps3fb);
#else
#define prealloc_ps3fb_videomemory()	do { } while (0)
#endif

#if defined(CONFIG_PS3_FLASH) || defined(CONFIG_PS3_FLASH_MODULE)
struct ps3_prealloc ps3flash_bounce_buffer = {
	.name = "ps3flash bounce buffer",
	.size = 256*1024,
	.align = 256*1024
};
EXPORT_SYMBOL_GPL(ps3flash_bounce_buffer);
#define prealloc_ps3flash_bounce_buffer()	prealloc(&ps3flash_bounce_buffer)

static int __init early_parse_ps3flash(char *p)
{
	if (!p)
		return 1;

	if (!strcmp(p, "off"))
		ps3flash_bounce_buffer.size = 0;

	return 0;
}
early_param("ps3flash", early_parse_ps3flash);
#else
#define prealloc_ps3flash_bounce_buffer()	do { } while (0)
#endif

static int ps3_set_dabr(unsigned long dabr, unsigned long dabrx)
{
	/* Have to set at least one bit in the DABRX */
	if (dabrx == 0 && dabr == 0)
		dabrx = DABRX_USER;
	/* hypervisor only allows us to set BTI, Kernel and user */
	dabrx &= DABRX_BTI | DABRX_KERNEL | DABRX_USER;

	return lv1_set_dabr(dabr, dabrx) ? -1 : 0;
}

static void __init ps3_setup_arch(void)
{
	u64 tmp;

	DBG(" -> %s:%d\n", __func__, __LINE__);

	lv1_get_version_info(&ps3_firmware_version.raw, &tmp);

	printk(KERN_INFO "PS3 firmware version %u.%u.%u\n",
	       ps3_firmware_version.major, ps3_firmware_version.minor,
	       ps3_firmware_version.rev);

	ps3_spu_set_platform();

#ifdef CONFIG_SMP
	smp_init_ps3();
#endif

#ifdef CONFIG_DUMMY_CONSOLE
	conswitchp = &dummy_con;
#endif

	prealloc_ps3fb_videomemory();
	prealloc_ps3flash_bounce_buffer();

	ppc_md.power_save = ps3_power_save;
	ps3_os_area_init();

	DBG(" <- %s:%d\n", __func__, __LINE__);
}

static void __init ps3_progress(char *s, unsigned short hex)
{
	printk("*** %04x : %s\n", hex, s ? s : "");
}

void __init ps3_early_mm_init(void)
{
	unsigned long htab_size;

	ps3_mm_init();
	ps3_mm_vas_create(&htab_size);
	ps3_hpte_init(htab_size);
}

static int __init ps3_probe(void)
{
	DBG(" -> %s:%d\n", __func__, __LINE__);

	if (!of_machine_is_compatible("sony,ps3"))
		return 0;

	ps3_os_area_save_params();

	pm_power_off = ps3_power_off;

	DBG(" <- %s:%d\n", __func__, __LINE__);
	return 1;
}

#if defined(CONFIG_KEXEC_CORE)
static void ps3_kexec_cpu_down(int crash_shutdown, int secondary)
{
	int cpu = smp_processor_id();

	DBG(" -> %s:%d: (%d)\n", __func__, __LINE__, cpu);

	ps3_smp_cleanup_cpu(cpu);
	ps3_shutdown_IRQ(cpu);

	DBG(" <- %s:%d\n", __func__, __LINE__);
}
#endif

define_machine(ps3) {
	.name				= "PS3",
	.probe				= ps3_probe,
	.setup_arch			= ps3_setup_arch,
	.init_IRQ			= ps3_init_IRQ,
	.panic				= ps3_panic,
	.get_boot_time			= ps3_get_boot_time,
	.set_dabr			= ps3_set_dabr,
	.calibrate_decr			= ps3_calibrate_decr,
	.progress			= ps3_progress,
	.restart			= ps3_restart,
	.halt				= ps3_halt,
#if defined(CONFIG_KEXEC_CORE)
	.kexec_cpu_down			= ps3_kexec_cpu_down,
#endif
};