4474ef055c
Rework set_dabr to take a DABRX value as well. Both the pseries and PS3 hypervisors do some checks on the DABRX values that are passed in the hcall. This patch stops bogus values from being passed to hypervisor. Also, in the case where we are clearing the breakpoint, where DABR and DABRX are zero, we modify the DABRX value to make it valid so that the hcall won't fail. Signed-off-by: Michael Neuling <mikey@neuling.org> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
286 lines
6.6 KiB
C
286 lines
6.6 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 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 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 = __alloc_bootmem(p->size, p->align, __pa(MAX_DMA_ADDRESS));
|
|
if (!p->address) {
|
|
printk(KERN_ERR "%s: Cannot allocate %s\n", __func__,
|
|
p->name);
|
|
return;
|
|
}
|
|
|
|
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 : "");
|
|
}
|
|
|
|
static int __init ps3_probe(void)
|
|
{
|
|
unsigned long htab_size;
|
|
unsigned long dt_root;
|
|
|
|
DBG(" -> %s:%d\n", __func__, __LINE__);
|
|
|
|
dt_root = of_get_flat_dt_root();
|
|
if (!of_flat_dt_is_compatible(dt_root, "sony,ps3"))
|
|
return 0;
|
|
|
|
powerpc_firmware_features |= FW_FEATURE_PS3_POSSIBLE;
|
|
|
|
ps3_os_area_save_params();
|
|
ps3_mm_init();
|
|
ps3_mm_vas_create(&htab_size);
|
|
ps3_hpte_init(htab_size);
|
|
|
|
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,
|
|
.power_off = ps3_power_off,
|
|
.halt = ps3_halt,
|
|
#if defined(CONFIG_KEXEC)
|
|
.kexec_cpu_down = ps3_kexec_cpu_down,
|
|
#endif
|
|
};
|