![Benjamin Herrenschmidt](/assets/img/avatar_default.png)
We no long need the machine type that early, so we can move probe_machine() to after the device-tree has been expanded. This will allow further consolidation. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
283 lines
6.4 KiB
C
283 lines
6.4 KiB
C
/*
|
|
* 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)
|
|
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)
|
|
.kexec_cpu_down = ps3_kexec_cpu_down,
|
|
#endif
|
|
};
|