Commit | Line | Data |
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873e65bc | 1 | // SPDX-License-Identifier: GPL-2.0-only |
f58a9d17 GL |
2 | /* |
3 | * PS3 platform setup routines. | |
4 | * | |
5 | * Copyright (C) 2006 Sony Computer Entertainment Inc. | |
6 | * Copyright 2006 Sony Corp. | |
f58a9d17 GL |
7 | */ |
8 | ||
9 | #include <linux/kernel.h> | |
10 | #include <linux/delay.h> | |
11 | #include <linux/fs.h> | |
12 | #include <linux/root_dev.h> | |
13 | #include <linux/console.h> | |
66b15db6 | 14 | #include <linux/export.h> |
57c8a661 | 15 | #include <linux/memblock.h> |
f58a9d17 GL |
16 | |
17 | #include <asm/machdep.h> | |
18 | #include <asm/firmware.h> | |
19 | #include <asm/time.h> | |
20 | #include <asm/iommu.h> | |
21 | #include <asm/udbg.h> | |
22 | #include <asm/prom.h> | |
23 | #include <asm/lv1call.h> | |
d3352c9f | 24 | #include <asm/ps3gpu.h> |
f58a9d17 GL |
25 | |
26 | #include "platform.h" | |
27 | ||
28 | #if defined(DEBUG) | |
83bb643d | 29 | #define DBG udbg_printf |
f58a9d17 | 30 | #else |
83bb643d | 31 | #define DBG pr_debug |
f58a9d17 GL |
32 | #endif |
33 | ||
9b82f3e6 GU |
34 | /* mutex synchronizing GPU accesses and video mode changes */ |
35 | DEFINE_MUTEX(ps3_gpu_mutex); | |
36 | EXPORT_SYMBOL_GPL(ps3_gpu_mutex); | |
37 | ||
1322810c MM |
38 | static union ps3_firmware_version ps3_firmware_version; |
39 | ||
40 | void ps3_get_firmware_version(union ps3_firmware_version *v) | |
66b44954 | 41 | { |
1322810c MM |
42 | *v = ps3_firmware_version; |
43 | } | |
44 | EXPORT_SYMBOL_GPL(ps3_get_firmware_version); | |
66b44954 | 45 | |
1322810c MM |
46 | int ps3_compare_firmware_version(u16 major, u16 minor, u16 rev) |
47 | { | |
48 | union ps3_firmware_version x; | |
49 | ||
50 | x.pad = 0; | |
51 | x.major = major; | |
52 | x.minor = minor; | |
53 | x.rev = rev; | |
66b44954 | 54 | |
fc43dca9 MM |
55 | return (ps3_firmware_version.raw > x.raw) - |
56 | (ps3_firmware_version.raw < x.raw); | |
66b44954 | 57 | } |
1322810c | 58 | EXPORT_SYMBOL_GPL(ps3_compare_firmware_version); |
66b44954 | 59 | |
f58a9d17 GL |
60 | static void ps3_power_save(void) |
61 | { | |
62 | /* | |
63 | * lv1_pause() puts the PPE thread into inactive state until an | |
64 | * irq on an unmasked plug exists. MSR[EE] has no effect. | |
65 | * flags: 0 = wake on DEC interrupt, 1 = ignore DEC interrupt. | |
66 | */ | |
67 | ||
68 | lv1_pause(0); | |
69 | } | |
70 | ||
95ec77c0 | 71 | static void __noreturn ps3_restart(char *cmd) |
fde5efd0 GL |
72 | { |
73 | DBG("%s:%d cmd '%s'\n", __func__, __LINE__, cmd); | |
74 | ||
75 | smp_send_stop(); | |
76 | ps3_sys_manager_restart(); /* never returns */ | |
77 | } | |
78 | ||
79 | static void ps3_power_off(void) | |
80 | { | |
81 | DBG("%s:%d\n", __func__, __LINE__); | |
82 | ||
83 | smp_send_stop(); | |
84 | ps3_sys_manager_power_off(); /* never returns */ | |
85 | } | |
86 | ||
95ec77c0 | 87 | static void __noreturn ps3_halt(void) |
ca052f79 GU |
88 | { |
89 | DBG("%s:%d\n", __func__, __LINE__); | |
90 | ||
91 | smp_send_stop(); | |
92 | ps3_sys_manager_halt(); /* never returns */ | |
93 | } | |
94 | ||
ab9dbf77 DG |
95 | static void ps3_panic(char *str) |
96 | { | |
97 | DBG("%s:%d %s\n", __func__, __LINE__, str); | |
98 | ||
99 | smp_send_stop(); | |
100 | printk("\n"); | |
101 | printk(" System does not reboot automatically.\n"); | |
102 | printk(" Please press POWER button.\n"); | |
103 | printk("\n"); | |
35adacd6 | 104 | panic_flush_kmsg_end(); |
ab9dbf77 DG |
105 | |
106 | while(1) | |
107 | lv1_pause(1); | |
108 | } | |
109 | ||
32d73318 GU |
110 | #if defined(CONFIG_FB_PS3) || defined(CONFIG_FB_PS3_MODULE) || \ |
111 | defined(CONFIG_PS3_FLASH) || defined(CONFIG_PS3_FLASH_MODULE) | |
cba684f5 | 112 | static void __init prealloc(struct ps3_prealloc *p) |
fbdb3e5b GU |
113 | { |
114 | if (!p->size) | |
115 | return; | |
116 | ||
eb31d559 | 117 | p->address = memblock_alloc(p->size, p->align); |
8a7f97b9 MR |
118 | if (!p->address) |
119 | panic("%s: Failed to allocate %lu bytes align=0x%lx\n", | |
120 | __func__, p->size, p->align); | |
fbdb3e5b GU |
121 | |
122 | printk(KERN_INFO "%s: %lu bytes at %p\n", p->name, p->size, | |
123 | p->address); | |
124 | } | |
32d73318 | 125 | #endif |
fbdb3e5b | 126 | |
32d73318 | 127 | #if defined(CONFIG_FB_PS3) || defined(CONFIG_FB_PS3_MODULE) |
fbdb3e5b | 128 | struct ps3_prealloc ps3fb_videomemory = { |
9e6b99bd GU |
129 | .name = "ps3fb videomemory", |
130 | .size = CONFIG_FB_PS3_DEFAULT_SIZE_M*1024*1024, | |
131 | .align = 1024*1024 /* the GPU requires 1 MiB alignment */ | |
fbdb3e5b | 132 | }; |
9e6b99bd | 133 | EXPORT_SYMBOL_GPL(ps3fb_videomemory); |
fbdb3e5b GU |
134 | #define prealloc_ps3fb_videomemory() prealloc(&ps3fb_videomemory) |
135 | ||
136 | static int __init early_parse_ps3fb(char *p) | |
137 | { | |
138 | if (!p) | |
139 | return 1; | |
140 | ||
141 | ps3fb_videomemory.size = _ALIGN_UP(memparse(p, &p), | |
142 | ps3fb_videomemory.align); | |
143 | return 0; | |
144 | } | |
145 | early_param("ps3fb", early_parse_ps3fb); | |
146 | #else | |
147 | #define prealloc_ps3fb_videomemory() do { } while (0) | |
148 | #endif | |
149 | ||
32d73318 GU |
150 | #if defined(CONFIG_PS3_FLASH) || defined(CONFIG_PS3_FLASH_MODULE) |
151 | struct ps3_prealloc ps3flash_bounce_buffer = { | |
152 | .name = "ps3flash bounce buffer", | |
153 | .size = 256*1024, | |
154 | .align = 256*1024 | |
155 | }; | |
156 | EXPORT_SYMBOL_GPL(ps3flash_bounce_buffer); | |
157 | #define prealloc_ps3flash_bounce_buffer() prealloc(&ps3flash_bounce_buffer) | |
158 | ||
159 | static int __init early_parse_ps3flash(char *p) | |
160 | { | |
161 | if (!p) | |
162 | return 1; | |
163 | ||
164 | if (!strcmp(p, "off")) | |
165 | ps3flash_bounce_buffer.size = 0; | |
166 | ||
167 | return 0; | |
168 | } | |
169 | early_param("ps3flash", early_parse_ps3flash); | |
170 | #else | |
171 | #define prealloc_ps3flash_bounce_buffer() do { } while (0) | |
172 | #endif | |
173 | ||
4474ef05 | 174 | static int ps3_set_dabr(unsigned long dabr, unsigned long dabrx) |
f0a1d024 | 175 | { |
4474ef05 MN |
176 | /* Have to set at least one bit in the DABRX */ |
177 | if (dabrx == 0 && dabr == 0) | |
178 | dabrx = DABRX_USER; | |
179 | /* hypervisor only allows us to set BTI, Kernel and user */ | |
180 | dabrx &= DABRX_BTI | DABRX_KERNEL | DABRX_USER; | |
f0a1d024 | 181 | |
4474ef05 | 182 | return lv1_set_dabr(dabr, dabrx) ? -1 : 0; |
f0a1d024 | 183 | } |
fbdb3e5b | 184 | |
f58a9d17 GL |
185 | static void __init ps3_setup_arch(void) |
186 | { | |
816cb49a | 187 | u64 tmp; |
66b44954 | 188 | |
f58a9d17 GL |
189 | DBG(" -> %s:%d\n", __func__, __LINE__); |
190 | ||
816cb49a GL |
191 | lv1_get_version_info(&ps3_firmware_version.raw, &tmp); |
192 | ||
1322810c MM |
193 | printk(KERN_INFO "PS3 firmware version %u.%u.%u\n", |
194 | ps3_firmware_version.major, ps3_firmware_version.minor, | |
195 | ps3_firmware_version.rev); | |
66b44954 | 196 | |
f58a9d17 | 197 | ps3_spu_set_platform(); |
f58a9d17 GL |
198 | |
199 | #ifdef CONFIG_SMP | |
200 | smp_init_ps3(); | |
201 | #endif | |
202 | ||
203 | #ifdef CONFIG_DUMMY_CONSOLE | |
204 | conswitchp = &dummy_con; | |
205 | #endif | |
206 | ||
fbdb3e5b | 207 | prealloc_ps3fb_videomemory(); |
32d73318 GU |
208 | prealloc_ps3flash_bounce_buffer(); |
209 | ||
f58a9d17 | 210 | ppc_md.power_save = ps3_power_save; |
7db19421 | 211 | ps3_os_area_init(); |
f58a9d17 GL |
212 | |
213 | DBG(" <- %s:%d\n", __func__, __LINE__); | |
214 | } | |
215 | ||
216 | static void __init ps3_progress(char *s, unsigned short hex) | |
217 | { | |
218 | printk("*** %04x : %s\n", hex, s ? s : ""); | |
219 | } | |
220 | ||
166dd7d3 | 221 | void __init ps3_early_mm_init(void) |
f58a9d17 GL |
222 | { |
223 | unsigned long htab_size; | |
166dd7d3 BH |
224 | |
225 | ps3_mm_init(); | |
226 | ps3_mm_vas_create(&htab_size); | |
227 | ps3_hpte_init(htab_size); | |
228 | } | |
229 | ||
230 | static int __init ps3_probe(void) | |
231 | { | |
f58a9d17 GL |
232 | DBG(" -> %s:%d\n", __func__, __LINE__); |
233 | ||
406b0b6a | 234 | if (!of_machine_is_compatible("sony,ps3")) |
f58a9d17 GL |
235 | return 0; |
236 | ||
01263e88 | 237 | ps3_os_area_save_params(); |
406b0b6a | 238 | |
9178ba29 | 239 | pm_power_off = ps3_power_off; |
f58a9d17 GL |
240 | |
241 | DBG(" <- %s:%d\n", __func__, __LINE__); | |
242 | return 1; | |
243 | } | |
244 | ||
da665885 | 245 | #if defined(CONFIG_KEXEC_CORE) |
f58a9d17 GL |
246 | static void ps3_kexec_cpu_down(int crash_shutdown, int secondary) |
247 | { | |
9263e85a | 248 | int cpu = smp_processor_id(); |
f58a9d17 | 249 | |
9263e85a | 250 | DBG(" -> %s:%d: (%d)\n", __func__, __LINE__, cpu); |
f58a9d17 | 251 | |
9263e85a GL |
252 | ps3_smp_cleanup_cpu(cpu); |
253 | ps3_shutdown_IRQ(cpu); | |
f58a9d17 GL |
254 | |
255 | DBG(" <- %s:%d\n", __func__, __LINE__); | |
256 | } | |
257 | #endif | |
258 | ||
259 | define_machine(ps3) { | |
260 | .name = "PS3", | |
261 | .probe = ps3_probe, | |
262 | .setup_arch = ps3_setup_arch, | |
f58a9d17 | 263 | .init_IRQ = ps3_init_IRQ, |
ab9dbf77 | 264 | .panic = ps3_panic, |
f58a9d17 | 265 | .get_boot_time = ps3_get_boot_time, |
f0a1d024 | 266 | .set_dabr = ps3_set_dabr, |
f58a9d17 GL |
267 | .calibrate_decr = ps3_calibrate_decr, |
268 | .progress = ps3_progress, | |
fde5efd0 | 269 | .restart = ps3_restart, |
ca052f79 | 270 | .halt = ps3_halt, |
da665885 | 271 | #if defined(CONFIG_KEXEC_CORE) |
f58a9d17 | 272 | .kexec_cpu_down = ps3_kexec_cpu_down, |
f58a9d17 GL |
273 | #endif |
274 | }; |