| // SPDX-License-Identifier: GPL-2.0-only |
| /* |
| * PS3 platform setup routines. |
| * |
| * Copyright (C) 2006 Sony Computer Entertainment Inc. |
| * Copyright 2006 Sony Corp. |
| */ |
| |
| #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/memblock.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"); |
| panic_flush_kmsg_end(); |
| |
| 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_alloc(p->size, p->align); |
| if (!p->address) |
| panic("%s: Failed to allocate %lu bytes align=0x%lx\n", |
| __func__, 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 |
| }; |