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270 lines
5.9 KiB
270 lines
5.9 KiB
// SPDX-License-Identifier: GPL-2.0-only |
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/* |
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* PS3 platform setup routines. |
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* |
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* Copyright (C) 2006 Sony Computer Entertainment Inc. |
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* Copyright 2006 Sony Corp. |
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*/ |
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#include <linux/kernel.h> |
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#include <linux/delay.h> |
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#include <linux/fs.h> |
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#include <linux/root_dev.h> |
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#include <linux/console.h> |
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#include <linux/export.h> |
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#include <linux/memblock.h> |
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#include <asm/machdep.h> |
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#include <asm/firmware.h> |
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#include <asm/time.h> |
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#include <asm/iommu.h> |
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#include <asm/udbg.h> |
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#include <asm/prom.h> |
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#include <asm/lv1call.h> |
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#include <asm/ps3gpu.h> |
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#include "platform.h" |
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#if defined(DEBUG) |
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#define DBG udbg_printf |
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#else |
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#define DBG pr_debug |
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#endif |
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/* mutex synchronizing GPU accesses and video mode changes */ |
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DEFINE_MUTEX(ps3_gpu_mutex); |
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EXPORT_SYMBOL_GPL(ps3_gpu_mutex); |
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static union ps3_firmware_version ps3_firmware_version; |
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void ps3_get_firmware_version(union ps3_firmware_version *v) |
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{ |
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*v = ps3_firmware_version; |
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} |
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EXPORT_SYMBOL_GPL(ps3_get_firmware_version); |
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int ps3_compare_firmware_version(u16 major, u16 minor, u16 rev) |
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{ |
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union ps3_firmware_version x; |
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x.pad = 0; |
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x.major = major; |
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x.minor = minor; |
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x.rev = rev; |
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return (ps3_firmware_version.raw > x.raw) - |
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(ps3_firmware_version.raw < x.raw); |
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} |
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EXPORT_SYMBOL_GPL(ps3_compare_firmware_version); |
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static void ps3_power_save(void) |
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{ |
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/* |
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* lv1_pause() puts the PPE thread into inactive state until an |
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* irq on an unmasked plug exists. MSR[EE] has no effect. |
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* flags: 0 = wake on DEC interrupt, 1 = ignore DEC interrupt. |
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*/ |
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lv1_pause(0); |
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} |
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static void __noreturn ps3_restart(char *cmd) |
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{ |
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DBG("%s:%d cmd '%s'\n", __func__, __LINE__, cmd); |
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smp_send_stop(); |
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ps3_sys_manager_restart(); /* never returns */ |
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} |
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static void ps3_power_off(void) |
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{ |
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DBG("%s:%d\n", __func__, __LINE__); |
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smp_send_stop(); |
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ps3_sys_manager_power_off(); /* never returns */ |
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} |
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static void __noreturn ps3_halt(void) |
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{ |
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DBG("%s:%d\n", __func__, __LINE__); |
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smp_send_stop(); |
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ps3_sys_manager_halt(); /* never returns */ |
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} |
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static void ps3_panic(char *str) |
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{ |
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DBG("%s:%d %s\n", __func__, __LINE__, str); |
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smp_send_stop(); |
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printk("\n"); |
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printk(" System does not reboot automatically.\n"); |
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printk(" Please press POWER button.\n"); |
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printk("\n"); |
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panic_flush_kmsg_end(); |
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while(1) |
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lv1_pause(1); |
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} |
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#if defined(CONFIG_FB_PS3) || defined(CONFIG_FB_PS3_MODULE) || \ |
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defined(CONFIG_PS3_FLASH) || defined(CONFIG_PS3_FLASH_MODULE) |
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static void __init prealloc(struct ps3_prealloc *p) |
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{ |
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if (!p->size) |
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return; |
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p->address = memblock_alloc(p->size, p->align); |
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if (!p->address) |
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panic("%s: Failed to allocate %lu bytes align=0x%lx\n", |
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__func__, p->size, p->align); |
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printk(KERN_INFO "%s: %lu bytes at %p\n", p->name, p->size, |
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p->address); |
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} |
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#endif |
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#if defined(CONFIG_FB_PS3) || defined(CONFIG_FB_PS3_MODULE) |
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struct ps3_prealloc ps3fb_videomemory = { |
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.name = "ps3fb videomemory", |
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.size = CONFIG_FB_PS3_DEFAULT_SIZE_M*1024*1024, |
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.align = 1024*1024 /* the GPU requires 1 MiB alignment */ |
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}; |
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EXPORT_SYMBOL_GPL(ps3fb_videomemory); |
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#define prealloc_ps3fb_videomemory() prealloc(&ps3fb_videomemory) |
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static int __init early_parse_ps3fb(char *p) |
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{ |
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if (!p) |
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return 1; |
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ps3fb_videomemory.size = ALIGN(memparse(p, &p), |
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ps3fb_videomemory.align); |
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return 0; |
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} |
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early_param("ps3fb", early_parse_ps3fb); |
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#else |
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#define prealloc_ps3fb_videomemory() do { } while (0) |
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#endif |
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#if defined(CONFIG_PS3_FLASH) || defined(CONFIG_PS3_FLASH_MODULE) |
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struct ps3_prealloc ps3flash_bounce_buffer = { |
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.name = "ps3flash bounce buffer", |
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.size = 256*1024, |
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.align = 256*1024 |
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}; |
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EXPORT_SYMBOL_GPL(ps3flash_bounce_buffer); |
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#define prealloc_ps3flash_bounce_buffer() prealloc(&ps3flash_bounce_buffer) |
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static int __init early_parse_ps3flash(char *p) |
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{ |
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if (!p) |
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return 1; |
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if (!strcmp(p, "off")) |
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ps3flash_bounce_buffer.size = 0; |
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return 0; |
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} |
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early_param("ps3flash", early_parse_ps3flash); |
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#else |
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#define prealloc_ps3flash_bounce_buffer() do { } while (0) |
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#endif |
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static int ps3_set_dabr(unsigned long dabr, unsigned long dabrx) |
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{ |
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/* Have to set at least one bit in the DABRX */ |
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if (dabrx == 0 && dabr == 0) |
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dabrx = DABRX_USER; |
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/* hypervisor only allows us to set BTI, Kernel and user */ |
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dabrx &= DABRX_BTI | DABRX_KERNEL | DABRX_USER; |
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return lv1_set_dabr(dabr, dabrx) ? -1 : 0; |
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} |
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static void __init ps3_setup_arch(void) |
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{ |
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u64 tmp; |
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DBG(" -> %s:%d\n", __func__, __LINE__); |
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lv1_get_version_info(&ps3_firmware_version.raw, &tmp); |
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printk(KERN_INFO "PS3 firmware version %u.%u.%u\n", |
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ps3_firmware_version.major, ps3_firmware_version.minor, |
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ps3_firmware_version.rev); |
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ps3_spu_set_platform(); |
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#ifdef CONFIG_SMP |
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smp_init_ps3(); |
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#endif |
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prealloc_ps3fb_videomemory(); |
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prealloc_ps3flash_bounce_buffer(); |
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ppc_md.power_save = ps3_power_save; |
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ps3_os_area_init(); |
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DBG(" <- %s:%d\n", __func__, __LINE__); |
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} |
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static void __init ps3_progress(char *s, unsigned short hex) |
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{ |
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printk("*** %04x : %s\n", hex, s ? s : ""); |
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} |
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void __init ps3_early_mm_init(void) |
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{ |
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unsigned long htab_size; |
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ps3_mm_init(); |
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ps3_mm_vas_create(&htab_size); |
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ps3_hpte_init(htab_size); |
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} |
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static int __init ps3_probe(void) |
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{ |
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DBG(" -> %s:%d\n", __func__, __LINE__); |
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if (!of_machine_is_compatible("sony,ps3")) |
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return 0; |
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ps3_os_area_save_params(); |
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pm_power_off = ps3_power_off; |
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DBG(" <- %s:%d\n", __func__, __LINE__); |
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return 1; |
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} |
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#if defined(CONFIG_KEXEC_CORE) |
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static void ps3_kexec_cpu_down(int crash_shutdown, int secondary) |
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{ |
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int cpu = smp_processor_id(); |
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DBG(" -> %s:%d: (%d)\n", __func__, __LINE__, cpu); |
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ps3_smp_cleanup_cpu(cpu); |
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ps3_shutdown_IRQ(cpu); |
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DBG(" <- %s:%d\n", __func__, __LINE__); |
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} |
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#endif |
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define_machine(ps3) { |
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.name = "PS3", |
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.probe = ps3_probe, |
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.setup_arch = ps3_setup_arch, |
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.init_IRQ = ps3_init_IRQ, |
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.panic = ps3_panic, |
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.get_boot_time = ps3_get_boot_time, |
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.set_dabr = ps3_set_dabr, |
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.calibrate_decr = ps3_calibrate_decr, |
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.progress = ps3_progress, |
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.restart = ps3_restart, |
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.halt = ps3_halt, |
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#if defined(CONFIG_KEXEC_CORE) |
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.kexec_cpu_down = ps3_kexec_cpu_down, |
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#endif |
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};
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