* [PATCH] add xbox subarchitecture
@ 2003-07-10 17:28 Anders Gustafsson
2003-07-10 18:09 ` Christoph Hellwig
0 siblings, 1 reply; 6+ messages in thread
From: Anders Gustafsson @ 2003-07-10 17:28 UTC (permalink / raw)
To: torvalds; +Cc: linux-kernel
Hi,
please apply the following patch that adds the xbox subarchitecture.
--
Anders Gustafsson - andersg@0x63.nu - http://0x63.nu/
You can import this changeset into BK by piping this whole message to:
'| bk receive [path to repository]' or apply the patch as usual.
===================================================================
ChangeSet
1.1380 03/07/10 18:06:17 andersg@0x63.nu +10 -0
Added configure option for the XBox Gaming System subarchitecture.
include/asm-i386/mach-xbox/mach_pci_blacklist.h
1.1 03/07/10 18:05:50 andersg@0x63.nu +6 -0
include/asm-i386/mach-xbox/mach_pci_blacklist.h
1.0 03/07/10 18:05:50 andersg@0x63.nu +0 -0
BitKeeper file /data/dev/kernel/bk/xbox-2.5/include/asm-i386/mach-xbox/mach_pci_blacklist.h
include/asm-i386/mach-default/mach_pci_blacklist.h
1.1 03/07/10 18:05:49 andersg@0x63.nu +6 -0
arch/i386/mach-xbox/setup.c
1.1 03/07/10 18:05:49 andersg@0x63.nu +79 -0
include/asm-i386/mach-default/mach_pci_blacklist.h
1.0 03/07/10 18:05:49 andersg@0x63.nu +0 -0
BitKeeper file /data/dev/kernel/bk/xbox-2.5/include/asm-i386/mach-default/mach_pci_blacklist.h
arch/i386/mach-xbox/setup.c
1.0 03/07/10 18:05:49 andersg@0x63.nu +0 -0
BitKeeper file /data/dev/kernel/bk/xbox-2.5/arch/i386/mach-xbox/setup.c
arch/i386/mach-xbox/reboot.c
1.1 03/07/10 18:05:48 andersg@0x63.nu +51 -0
arch/i386/mach-xbox/reboot.c
1.0 03/07/10 18:05:48 andersg@0x63.nu +0 -0
BitKeeper file /data/dev/kernel/bk/xbox-2.5/arch/i386/mach-xbox/reboot.c
arch/i386/mach-xbox/Makefile
1.1 03/07/10 18:05:44 andersg@0x63.nu +5 -0
include/asm-i386/timex.h
1.6 03/07/10 18:05:44 andersg@0x63.nu +5 -1
The xbox has a different CLOCK_TICK_RATE.
arch/i386/pci/direct.c
1.19 03/07/10 18:05:44 andersg@0x63.nu +4 -0
Added a mach-hook for blacklisting pci-devices.
The xbox uses this to prevent it from touching some devices that makes it ha
ng solid.
arch/i386/mach-xbox/Makefile
1.0 03/07/10 18:05:44 andersg@0x63.nu +0 -0
BitKeeper file /data/dev/kernel/bk/xbox-2.5/arch/i386/mach-xbox/Makefile
arch/i386/boot/compressed/Makefile
1.17 03/07/10 18:05:44 andersg@0x63.nu +5 -0
There is some strange interaction when paging is off, that makes 1.1 xboxen
crash while decompressing kernel. Compiling the decompressor without
optimization works around this problem.
arch/i386/Makefile
1.53 03/07/10 18:05:44 andersg@0x63.nu +4 -0
Added XBox Gaming System subarchitecture.
arch/i386/Kconfig
1.66 03/07/10 18:05:44 andersg@0x63.nu +19 -2
Added configure option for the XBox Gaming System subarchitecture.
arch/i386/Kconfig | 21 +++++
arch/i386/Makefile | 4 +
arch/i386/boot/compressed/Makefile | 5 +
arch/i386/mach-xbox/Makefile | 5 +
arch/i386/mach-xbox/reboot.c | 51 +++++++++++++
arch/i386/mach-xbox/setup.c | 79 +++++++++++++++++++++
arch/i386/pci/direct.c | 4 +
include/asm-i386/mach-default/mach_pci_blacklist.h | 6 +
include/asm-i386/mach-xbox/mach_pci_blacklist.h | 6 +
include/asm-i386/timex.h | 6 +
10 files changed, 184 insertions(+), 3 deletions(-)
diff -Nru a/arch/i386/Kconfig b/arch/i386/Kconfig
--- a/arch/i386/Kconfig Thu Jul 10 18:07:08 2003
+++ b/arch/i386/Kconfig Thu Jul 10 18:07:08 2003
@@ -43,6 +43,22 @@
help
Choose this option if your computer is a standard PC or compatible.
+config X86_XBOX
+ bool "XBox Gaming System"
+ help
+ This option is needed to make Linux boot on XBox Gaming Systems.
+
+ The XBox can be considered as a standard PC with a Coppermine-based Celeron 733 MHz,
+ IDE harddrive, DVD, Ethernet, USB and graphics.
+
+ To boot the kernel you need "_romwell", either used as a replacement BIOS (cromwell)
+ or as a bootloader.
+
+ For more information see http://xbox-linux.sourceforge.net/
+
+ If you do not specifically need a kernel for XBOX machine,
+ say N here otherwise the kernel you build will not be bootable.
+
config X86_VOYAGER
bool "Voyager (NCR)"
help
@@ -409,6 +425,7 @@
Otherwise, say N.
config SMP
+ depends on !X86_XBOX
bool "Symmetric multi-processing support"
---help---
This enables support for systems with more than one CPU. If you have
@@ -1104,7 +1121,7 @@
config MCA
bool "MCA support"
- depends on !(X86_VISWS || X86_VOYAGER)
+ depends on !(X86_VISWS || X86_VOYAGER || X86_XBOX)
help
MicroChannel Architecture is found in some IBM PS/2 machines and
laptops. It is a bus system similar to PCI or ISA. See
@@ -1410,7 +1427,7 @@
config X86_BIOS_REBOOT
bool
- depends on !(X86_VISWS || X86_VOYAGER)
+ depends on !(X86_VISWS || X86_VOYAGER || X86_XBOX)
default y
config X86_TRAMPOLINE
diff -Nru a/arch/i386/Makefile b/arch/i386/Makefile
--- a/arch/i386/Makefile Thu Jul 10 18:07:08 2003
+++ b/arch/i386/Makefile Thu Jul 10 18:07:08 2003
@@ -53,6 +53,10 @@
# Default subarch .c files
mcore-y := mach-default
+# Xbox subarch support
+mflags-$(CONFIG_X86_XBOX) := -Iinclude/asm-i386/mach-xbox
+mcore-$(CONFIG_X86_XBOX) := mach-xbox
+
# Voyager subarch support
mflags-$(CONFIG_X86_VOYAGER) := -Iinclude/asm-i386/mach-voyager
mcore-$(CONFIG_X86_VOYAGER) := mach-voyager
diff -Nru a/arch/i386/boot/compressed/Makefile b/arch/i386/boot/compressed/Makefile
--- a/arch/i386/boot/compressed/Makefile Thu Jul 10 18:07:08 2003
+++ b/arch/i386/boot/compressed/Makefile Thu Jul 10 18:07:08 2003
@@ -5,6 +5,11 @@
#
targets := vmlinux vmlinux.bin vmlinux.bin.gz head.o misc.o piggy.o
+ifeq ($(CONFIG_X86_XBOX),y)
+#XXX Compiling with optimization makes 1.1-xboxen
+# crash while decompressing the kernel
+CFLAGS_misc.o := -O0
+endif
EXTRA_AFLAGS := -traditional
LDFLAGS_vmlinux := -Ttext $(IMAGE_OFFSET) -e startup_32
diff -Nru a/arch/i386/mach-xbox/Makefile b/arch/i386/mach-xbox/Makefile
--- /dev/null Wed Dec 31 16:00:00 1969
+++ b/arch/i386/mach-xbox/Makefile Thu Jul 10 18:07:08 2003
@@ -0,0 +1,5 @@
+#
+# Makefile for the linux kernel.
+#
+
+obj-y := setup.o reboot.o
diff -Nru a/arch/i386/mach-xbox/reboot.c b/arch/i386/mach-xbox/reboot.c
--- /dev/null Wed Dec 31 16:00:00 1969
+++ b/arch/i386/mach-xbox/reboot.c Thu Jul 10 18:07:08 2003
@@ -0,0 +1,51 @@
+/*
+ * arch/i386/mach-xbox/reboot.c
+ * Olivier Fauchon <olivier.fauchon@free.fr>
+ * Anders Gustafsson <andersg@0x63.nu>
+ *
+ */
+
+#include <asm/io.h>
+
+/* we don't use any of those, but dmi_scan.c needs 'em */
+void (*pm_power_off)(void);
+int reboot_thru_bios;
+
+#define XBOX_SMB_IO_BASE 0xC000
+#define XBOX_SMB_HOST_ADDRESS (0x4 + XBOX_SMB_IO_BASE)
+#define XBOX_SMB_HOST_COMMAND (0x8 + XBOX_SMB_IO_BASE)
+#define XBOX_SMB_HOST_DATA (0x6 + XBOX_SMB_IO_BASE)
+#define XBOX_SMB_GLOBAL_ENABLE (0x2 + XBOX_SMB_IO_BASE)
+
+#define XBOX_PIC_ADDRESS 0x10
+
+#define SMC_CMD_POWER 0x02
+#define SMC_SUBCMD_POWER_RESET 0x01
+#define SMC_SUBCMD_POWER_CYCLE 0x40
+#define SMC_SUBCMD_POWER_OFF 0x80
+
+
+static void xbox_pic_cmd(u8 command)
+{
+ outw_p(((XBOX_PIC_ADDRESS) << 1),XBOX_SMB_HOST_ADDRESS);
+ outb_p(SMC_CMD_POWER, XBOX_SMB_HOST_COMMAND);
+ outw_p(command, XBOX_SMB_HOST_DATA);
+ outw_p(inw(XBOX_SMB_IO_BASE),XBOX_SMB_IO_BASE);
+ outb_p(0x0a,XBOX_SMB_GLOBAL_ENABLE);
+}
+
+void machine_restart(char * __unused)
+{
+ printk(KERN_INFO "Sending POWER_RESET to XBOX-PIC.\n");
+ xbox_pic_cmd(SMC_SUBCMD_POWER_RESET);
+}
+
+void machine_power_off(void)
+{
+ printk(KERN_INFO "Sending POWER_OFF to XBOX-PIC.\n");
+ xbox_pic_cmd(SMC_SUBCMD_POWER_OFF);
+}
+
+void machine_halt(void)
+{
+}
diff -Nru a/arch/i386/mach-xbox/setup.c b/arch/i386/mach-xbox/setup.c
--- /dev/null Wed Dec 31 16:00:00 1969
+++ b/arch/i386/mach-xbox/setup.c Thu Jul 10 18:07:08 2003
@@ -0,0 +1,79 @@
+/*
+ * Machine specific setup for xbox
+ */
+
+#include <linux/config.h>
+#include <linux/smp.h>
+#include <linux/init.h>
+#include <linux/irq.h>
+#include <linux/interrupt.h>
+#include <asm/arch_hooks.h>
+
+/**
+ * pre_intr_init_hook - initialisation prior to setting up interrupt vectors
+ *
+ * Description:
+ * Perform any necessary interrupt initialisation prior to setting up
+ * the "ordinary" interrupt call gates. For legacy reasons, the ISA
+ * interrupts should be initialised here if the machine emulates a PC
+ * in any way.
+ **/
+void __init pre_intr_init_hook(void)
+{
+ init_ISA_irqs();
+}
+
+/**
+ * intr_init_hook - post gate setup interrupt initialisation
+ *
+ * Description:
+ * Fill in any interrupts that may have been left out by the general
+ * init_IRQ() routine. interrupts having to do with the machine rather
+ * than the devices on the I/O bus (like APIC interrupts in intel MP
+ * systems) are started here.
+ **/
+void __init intr_init_hook(void)
+{
+#ifdef CONFIG_X86_LOCAL_APIC
+ apic_intr_init();
+#endif
+
+}
+
+/**
+ * pre_setup_arch_hook - hook called prior to any setup_arch() execution
+ *
+ * Description:
+ * generally used to activate any machine specific identification
+ * routines that may be needed before setup_arch() runs. On VISWS
+ * this is used to get the board revision and type.
+ **/
+void __init pre_setup_arch_hook(void)
+{
+}
+
+/**
+ * trap_init_hook - initialise system specific traps
+ *
+ * Description:
+ * Called as the final act of trap_init(). Used in VISWS to initialise
+ * the various board specific APIC traps.
+ **/
+void __init trap_init_hook(void)
+{
+}
+
+static struct irqaction irq0 = { timer_interrupt, SA_INTERRUPT, 0, "timer", NULL, NULL};
+
+/**
+ * time_init_hook - do any specific initialisations for the system timer.
+ *
+ * Description:
+ * Must plug the system timer interrupt source at HZ into the IRQ listed
+ * in irq_vectors.h:TIMER_IRQ
+ **/
+void __init time_init_hook(void)
+{
+ setup_irq(0, &irq0);
+}
+
diff -Nru a/arch/i386/pci/direct.c b/arch/i386/pci/direct.c
--- a/arch/i386/pci/direct.c Thu Jul 10 18:07:08 2003
+++ b/arch/i386/pci/direct.c Thu Jul 10 18:07:08 2003
@@ -4,6 +4,7 @@
#include <linux/pci.h>
#include <linux/init.h>
+#include "mach_pci_blacklist.h"
#include "pci.h"
/*
@@ -20,6 +21,9 @@
if (!value || (bus > 255) || (devfn > 255) || (reg > 255))
return -EINVAL;
+ if (mach_pci_is_blacklisted(bus,PCI_SLOT(devfn),PCI_FUNC(devfn)))
+ return -EINVAL;
+
spin_lock_irqsave(&pci_config_lock, flags);
outl(PCI_CONF1_ADDRESS(bus, devfn, reg), 0xCF8);
diff -Nru a/include/asm-i386/mach-default/mach_pci_blacklist.h b/include/asm-i386/mach-default/mach_pci_blacklist.h
--- /dev/null Wed Dec 31 16:00:00 1969
+++ b/include/asm-i386/mach-default/mach_pci_blacklist.h Thu Jul 10 18:07:08 2003
@@ -0,0 +1,6 @@
+#ifndef __ASM_MACH_PCI_BLACKLIST_H
+#define __ASM_MACH_PCI_BLACKLIST_H
+
+#define mach_pci_is_blacklisted(bus,dev,fn) 0
+
+#endif
diff -Nru a/include/asm-i386/mach-xbox/mach_pci_blacklist.h b/include/asm-i386/mach-xbox/mach_pci_blacklist.h
--- /dev/null Wed Dec 31 16:00:00 1969
+++ b/include/asm-i386/mach-xbox/mach_pci_blacklist.h Thu Jul 10 18:07:08 2003
@@ -0,0 +1,6 @@
+#ifndef __ASM_MACH_PCI_BLACKLIST_H
+#define __ASM_MACH_PCI_BLACKLIST_H
+
+#define mach_pci_is_blacklisted(bus,dev,fn) ( (bus>1) || (bus&&(dev||fn)) || ((bus==0 && dev==0) && ((fn==1)||(fn==2))) )
+
+#endif
diff -Nru a/include/asm-i386/timex.h b/include/asm-i386/timex.h
--- a/include/asm-i386/timex.h Thu Jul 10 18:07:08 2003
+++ b/include/asm-i386/timex.h Thu Jul 10 18:07:08 2003
@@ -15,7 +15,11 @@
#ifdef CONFIG_MELAN
# define CLOCK_TICK_RATE 1189200 /* AMD Elan has different frequency! */
#else
-# define CLOCK_TICK_RATE 1193182 /* Underlying HZ */
+# ifdef CONFIG_X86_XBOX
+# define CLOCK_TICK_RATE 1124998 /* so has the Xbox */
+# else
+# define CLOCK_TICK_RATE 1193180 /* Underlying HZ */
+# endif
#endif
#endif
===================================================================
This BitKeeper patch contains the following changesets:
1.1380
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M04=%4B!\?"!8.#9?6$)/6"D*"B,@4&%T8V@@8VAE8VMS=6T]-C%F8SEB,3D*
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: [PATCH] add xbox subarchitecture
2003-07-10 17:28 [PATCH] add xbox subarchitecture Anders Gustafsson
@ 2003-07-10 18:09 ` Christoph Hellwig
2003-07-11 8:29 ` Anders Gustafsson
0 siblings, 1 reply; 6+ messages in thread
From: Christoph Hellwig @ 2003-07-10 18:09 UTC (permalink / raw)
To: Anders Gustafsson; +Cc: torvalds, linux-kernel
> targets := vmlinux vmlinux.bin vmlinux.bin.gz head.o misc.o piggy.o
> +ifeq ($(CONFIG_X86_XBOX),y)
> +#XXX Compiling with optimization makes 1.1-xboxen
> +# crash while decompressing the kernel
> +CFLAGS_misc.o := -O0
> +endif
I don't think this should go in until it's clear that it's not a gcc
problem.
> + if (mach_pci_is_blacklisted(bus,PCI_SLOT(devfn),PCI_FUNC(devfn)))
there's a few space missing..
> +#ifndef __ASM_MACH_PCI_BLACKLIST_H
> +#define __ASM_MACH_PCI_BLACKLIST_H
> +
> +#define mach_pci_is_blacklisted(bus,dev,fn) ( (bus>1) || (bus&&(dev||fn)) || ((bus==0 && dev==0) && ((fn==1)||(fn==2))) )
#define mach_pci_is_blacklisted(bus, dev, fn) \
((bus > 1) || (bus && (dev || fn)) || \
((!bus && !dev) && ((fn == 1) || (fn == 2))))
or even better an inline function
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: [PATCH] add xbox subarchitecture
2003-07-10 18:09 ` Christoph Hellwig
@ 2003-07-11 8:29 ` Anders Gustafsson
2003-07-11 8:45 ` Christoph Hellwig
0 siblings, 1 reply; 6+ messages in thread
From: Anders Gustafsson @ 2003-07-11 8:29 UTC (permalink / raw)
To: Christoph Hellwig, torvalds, linux-kernel
On Thu, Jul 10, 2003 at 07:09:18PM +0100, Christoph Hellwig wrote:
> > targets := vmlinux vmlinux.bin vmlinux.bin.gz head.o misc.o piggy.o
> > +ifeq ($(CONFIG_X86_XBOX),y)
> > +#XXX Compiling with optimization makes 1.1-xboxen
> > +# crash while decompressing the kernel
> > +CFLAGS_misc.o := -O0
> > +endif
>
> I don't think this should go in until it's clear that it's not a gcc
> problem.
I don't really know how to make clear it's not a gcc problem. But if it was,
why doesn't it crash on pc and 1.0 xboxen? And why does it crash on kernels
compiled with 2.95, with or without optimization? I really wish I had the
explaination to this problem.
Updated patch according to other comments attached.
(btw, everyone at LinuxTag should come to the xbox-linux booth and say hi :)
--
Anders Gustafsson - andersg@0x63.nu - http://0x63.nu/
You can import this changeset into BK by piping this whole message to:
'| bk receive [path to repository]' or apply the patch as usual.
===================================================================
ChangeSet
1.1404 03/07/11 09:49:29 andersg@0x63.nu +10 -0
Added XBox Gaming System subarchitecture.
include/asm-i386/mach-xbox/mach_pci_blacklist.h
1.1 03/07/11 09:42:47 andersg@0x63.nu +6 -0
include/asm-i386/mach-xbox/mach_pci_blacklist.h
1.0 03/07/11 09:42:47 andersg@0x63.nu +0 -0
BitKeeper file /data/dev/kernel/bk/xbox-2.5/include/asm-i386/mach-xbox/mach_pci_blacklist.h
include/asm-i386/mach-default/mach_pci_blacklist.h
1.1 03/07/11 09:42:46 andersg@0x63.nu +6 -0
arch/i386/mach-xbox/setup.c
1.1 03/07/11 09:42:46 andersg@0x63.nu +79 -0
include/asm-i386/mach-default/mach_pci_blacklist.h
1.0 03/07/11 09:42:46 andersg@0x63.nu +0 -0
BitKeeper file /data/dev/kernel/bk/xbox-2.5/include/asm-i386/mach-default/mach_pci_blacklist.h
arch/i386/mach-xbox/setup.c
1.0 03/07/11 09:42:46 andersg@0x63.nu +0 -0
BitKeeper file /data/dev/kernel/bk/xbox-2.5/arch/i386/mach-xbox/setup.c
arch/i386/mach-xbox/reboot.c
1.1 03/07/11 09:42:45 andersg@0x63.nu +51 -0
arch/i386/mach-xbox/reboot.c
1.0 03/07/11 09:42:45 andersg@0x63.nu +0 -0
BitKeeper file /data/dev/kernel/bk/xbox-2.5/arch/i386/mach-xbox/reboot.c
arch/i386/mach-xbox/Makefile
1.1 03/07/11 09:42:44 andersg@0x63.nu +5 -0
include/asm-i386/timex.h
1.6 03/07/11 09:42:44 andersg@0x63.nu +5 -1
The xbox has a different CLOCK_TICK_RATE.
arch/i386/pci/direct.c
1.19 03/07/11 09:42:44 andersg@0x63.nu +4 -0
Added a mach-hook for blacklisting pci-devices.
The xbox uses this to prevent it from touching some devices that makes
it hang.
arch/i386/mach-xbox/Makefile
1.0 03/07/11 09:42:44 andersg@0x63.nu +0 -0
BitKeeper file /data/dev/kernel/bk/xbox-2.5/arch/i386/mach-xbox/Makefile
arch/i386/boot/compressed/Makefile
1.17 03/07/11 09:42:44 andersg@0x63.nu +5 -0
There is some strange interaction when paging is off, that makes 1.1 xboxen
crash while decompressing kernel. Compiling the decompressor without
optimization works around this problem.
arch/i386/Makefile
1.53 03/07/11 09:42:44 andersg@0x63.nu +4 -0
Added XBox Gaming System subarchitecture.
arch/i386/Kconfig
1.66 03/07/11 09:42:44 andersg@0x63.nu +19 -2
Added configure option for the XBox Gaming System subarchitecture.
arch/i386/Kconfig | 21 +++++
arch/i386/Makefile | 4 +
arch/i386/boot/compressed/Makefile | 5 +
arch/i386/mach-xbox/Makefile | 5 +
arch/i386/mach-xbox/reboot.c | 51 +++++++++++++
arch/i386/mach-xbox/setup.c | 79 +++++++++++++++++++++
arch/i386/pci/direct.c | 4 +
include/asm-i386/mach-default/mach_pci_blacklist.h | 6 +
include/asm-i386/mach-xbox/mach_pci_blacklist.h | 6 +
include/asm-i386/timex.h | 6 +
10 files changed, 184 insertions(+), 3 deletions(-)
diff -Nru a/arch/i386/Kconfig b/arch/i386/Kconfig
--- a/arch/i386/Kconfig Fri Jul 11 09:56:33 2003
+++ b/arch/i386/Kconfig Fri Jul 11 09:56:33 2003
@@ -43,6 +43,22 @@
help
Choose this option if your computer is a standard PC or compatible.
+config X86_XBOX
+ bool "XBox Gaming System"
+ help
+ This option is needed to make Linux boot on XBox Gaming Systems.
+
+ The XBox can be considered as a standard PC with a Coppermine-based Celeron 733 MHz,
+ IDE harddrive, DVD, Ethernet, USB and graphics.
+
+ To boot the kernel you need "_romwell", either used as a replacement BIOS (cromwell)
+ or as a bootloader.
+
+ For more information see http://xbox-linux.sourceforge.net/
+
+ If you do not specifically need a kernel for XBOX machine,
+ say N here otherwise the kernel you build will not be bootable.
+
config X86_VOYAGER
bool "Voyager (NCR)"
help
@@ -409,6 +425,7 @@
Otherwise, say N.
config SMP
+ depends on !X86_XBOX
bool "Symmetric multi-processing support"
---help---
This enables support for systems with more than one CPU. If you have
@@ -1104,7 +1121,7 @@
config MCA
bool "MCA support"
- depends on !(X86_VISWS || X86_VOYAGER)
+ depends on !(X86_VISWS || X86_VOYAGER || X86_XBOX)
help
MicroChannel Architecture is found in some IBM PS/2 machines and
laptops. It is a bus system similar to PCI or ISA. See
@@ -1410,7 +1427,7 @@
config X86_BIOS_REBOOT
bool
- depends on !(X86_VISWS || X86_VOYAGER)
+ depends on !(X86_VISWS || X86_VOYAGER || X86_XBOX)
default y
config X86_TRAMPOLINE
diff -Nru a/arch/i386/Makefile b/arch/i386/Makefile
--- a/arch/i386/Makefile Fri Jul 11 09:56:33 2003
+++ b/arch/i386/Makefile Fri Jul 11 09:56:33 2003
@@ -53,6 +53,10 @@
# Default subarch .c files
mcore-y := mach-default
+# Xbox subarch support
+mflags-$(CONFIG_X86_XBOX) := -Iinclude/asm-i386/mach-xbox
+mcore-$(CONFIG_X86_XBOX) := mach-xbox
+
# Voyager subarch support
mflags-$(CONFIG_X86_VOYAGER) := -Iinclude/asm-i386/mach-voyager
mcore-$(CONFIG_X86_VOYAGER) := mach-voyager
diff -Nru a/arch/i386/boot/compressed/Makefile b/arch/i386/boot/compressed/Makefile
--- a/arch/i386/boot/compressed/Makefile Fri Jul 11 09:56:33 2003
+++ b/arch/i386/boot/compressed/Makefile Fri Jul 11 09:56:33 2003
@@ -5,6 +5,11 @@
#
targets := vmlinux vmlinux.bin vmlinux.bin.gz head.o misc.o piggy.o
+ifeq ($(CONFIG_X86_XBOX),y)
+#XXX Compiling with optimization makes 1.1-xboxen
+# crash while decompressing the kernel
+CFLAGS_misc.o := -O0
+endif
EXTRA_AFLAGS := -traditional
LDFLAGS_vmlinux := -Ttext $(IMAGE_OFFSET) -e startup_32
diff -Nru a/arch/i386/mach-xbox/Makefile b/arch/i386/mach-xbox/Makefile
--- /dev/null Wed Dec 31 16:00:00 1969
+++ b/arch/i386/mach-xbox/Makefile Fri Jul 11 09:56:33 2003
@@ -0,0 +1,5 @@
+#
+# Makefile for the linux kernel.
+#
+
+obj-y := setup.o reboot.o
diff -Nru a/arch/i386/mach-xbox/reboot.c b/arch/i386/mach-xbox/reboot.c
--- /dev/null Wed Dec 31 16:00:00 1969
+++ b/arch/i386/mach-xbox/reboot.c Fri Jul 11 09:56:33 2003
@@ -0,0 +1,51 @@
+/*
+ * arch/i386/mach-xbox/reboot.c
+ * Olivier Fauchon <olivier.fauchon@free.fr>
+ * Anders Gustafsson <andersg@0x63.nu>
+ *
+ */
+
+#include <asm/io.h>
+
+/* we don't use any of those, but dmi_scan.c needs 'em */
+void (*pm_power_off)(void);
+int reboot_thru_bios;
+
+#define XBOX_SMB_IO_BASE 0xC000
+#define XBOX_SMB_HOST_ADDRESS (0x4 + XBOX_SMB_IO_BASE)
+#define XBOX_SMB_HOST_COMMAND (0x8 + XBOX_SMB_IO_BASE)
+#define XBOX_SMB_HOST_DATA (0x6 + XBOX_SMB_IO_BASE)
+#define XBOX_SMB_GLOBAL_ENABLE (0x2 + XBOX_SMB_IO_BASE)
+
+#define XBOX_PIC_ADDRESS 0x10
+
+#define SMC_CMD_POWER 0x02
+#define SMC_SUBCMD_POWER_RESET 0x01
+#define SMC_SUBCMD_POWER_CYCLE 0x40
+#define SMC_SUBCMD_POWER_OFF 0x80
+
+
+static void xbox_pic_cmd(u8 command)
+{
+ outw_p(((XBOX_PIC_ADDRESS) << 1),XBOX_SMB_HOST_ADDRESS);
+ outb_p(SMC_CMD_POWER, XBOX_SMB_HOST_COMMAND);
+ outw_p(command, XBOX_SMB_HOST_DATA);
+ outw_p(inw(XBOX_SMB_IO_BASE),XBOX_SMB_IO_BASE);
+ outb_p(0x0a,XBOX_SMB_GLOBAL_ENABLE);
+}
+
+void machine_restart(char * __unused)
+{
+ printk(KERN_INFO "Sending POWER_RESET to XBOX-PIC.\n");
+ xbox_pic_cmd(SMC_SUBCMD_POWER_RESET);
+}
+
+void machine_power_off(void)
+{
+ printk(KERN_INFO "Sending POWER_OFF to XBOX-PIC.\n");
+ xbox_pic_cmd(SMC_SUBCMD_POWER_OFF);
+}
+
+void machine_halt(void)
+{
+}
diff -Nru a/arch/i386/mach-xbox/setup.c b/arch/i386/mach-xbox/setup.c
--- /dev/null Wed Dec 31 16:00:00 1969
+++ b/arch/i386/mach-xbox/setup.c Fri Jul 11 09:56:33 2003
@@ -0,0 +1,79 @@
+/*
+ * Machine specific setup for xbox
+ */
+
+#include <linux/config.h>
+#include <linux/smp.h>
+#include <linux/init.h>
+#include <linux/irq.h>
+#include <linux/interrupt.h>
+#include <asm/arch_hooks.h>
+
+/**
+ * pre_intr_init_hook - initialisation prior to setting up interrupt vectors
+ *
+ * Description:
+ * Perform any necessary interrupt initialisation prior to setting up
+ * the "ordinary" interrupt call gates. For legacy reasons, the ISA
+ * interrupts should be initialised here if the machine emulates a PC
+ * in any way.
+ **/
+void __init pre_intr_init_hook(void)
+{
+ init_ISA_irqs();
+}
+
+/**
+ * intr_init_hook - post gate setup interrupt initialisation
+ *
+ * Description:
+ * Fill in any interrupts that may have been left out by the general
+ * init_IRQ() routine. interrupts having to do with the machine rather
+ * than the devices on the I/O bus (like APIC interrupts in intel MP
+ * systems) are started here.
+ **/
+void __init intr_init_hook(void)
+{
+#ifdef CONFIG_X86_LOCAL_APIC
+ apic_intr_init();
+#endif
+
+}
+
+/**
+ * pre_setup_arch_hook - hook called prior to any setup_arch() execution
+ *
+ * Description:
+ * generally used to activate any machine specific identification
+ * routines that may be needed before setup_arch() runs. On VISWS
+ * this is used to get the board revision and type.
+ **/
+void __init pre_setup_arch_hook(void)
+{
+}
+
+/**
+ * trap_init_hook - initialise system specific traps
+ *
+ * Description:
+ * Called as the final act of trap_init(). Used in VISWS to initialise
+ * the various board specific APIC traps.
+ **/
+void __init trap_init_hook(void)
+{
+}
+
+static struct irqaction irq0 = { timer_interrupt, SA_INTERRUPT, 0, "timer", NULL, NULL};
+
+/**
+ * time_init_hook - do any specific initialisations for the system timer.
+ *
+ * Description:
+ * Must plug the system timer interrupt source at HZ into the IRQ listed
+ * in irq_vectors.h:TIMER_IRQ
+ **/
+void __init time_init_hook(void)
+{
+ setup_irq(0, &irq0);
+}
+
diff -Nru a/arch/i386/pci/direct.c b/arch/i386/pci/direct.c
--- a/arch/i386/pci/direct.c Fri Jul 11 09:56:33 2003
+++ b/arch/i386/pci/direct.c Fri Jul 11 09:56:33 2003
@@ -4,6 +4,7 @@
#include <linux/pci.h>
#include <linux/init.h>
+#include "mach_pci_blacklist.h"
#include "pci.h"
/*
@@ -20,6 +21,9 @@
if (!value || (bus > 255) || (devfn > 255) || (reg > 255))
return -EINVAL;
+ if (mach_pci_is_blacklisted(bus,PCI_SLOT(devfn),PCI_FUNC(devfn)))
+ return -EINVAL;
+
spin_lock_irqsave(&pci_config_lock, flags);
outl(PCI_CONF1_ADDRESS(bus, devfn, reg), 0xCF8);
diff -Nru a/include/asm-i386/mach-default/mach_pci_blacklist.h b/include/asm-i386/mach-default/mach_pci_blacklist.h
--- /dev/null Wed Dec 31 16:00:00 1969
+++ b/include/asm-i386/mach-default/mach_pci_blacklist.h Fri Jul 11 09:56:33 2003
@@ -0,0 +1,6 @@
+#ifndef __ASM_MACH_PCI_BLACKLIST_H
+#define __ASM_MACH_PCI_BLACKLIST_H
+
+#define mach_pci_is_blacklisted(bus,dev,fn) 0
+
+#endif
diff -Nru a/include/asm-i386/mach-xbox/mach_pci_blacklist.h b/include/asm-i386/mach-xbox/mach_pci_blacklist.h
--- /dev/null Wed Dec 31 16:00:00 1969
+++ b/include/asm-i386/mach-xbox/mach_pci_blacklist.h Fri Jul 11 09:56:33 2003
@@ -0,0 +1,6 @@
+#ifndef __ASM_MACH_PCI_BLACKLIST_H
+#define __ASM_MACH_PCI_BLACKLIST_H
+
+#define mach_pci_is_blacklisted(bus,dev,fn) ( (bus>1) || (bus&&(dev||fn)) || ((bus==0 && dev==0) && ((fn==1)||(fn==2))) )
+
+#endif
diff -Nru a/include/asm-i386/timex.h b/include/asm-i386/timex.h
--- a/include/asm-i386/timex.h Fri Jul 11 09:56:33 2003
+++ b/include/asm-i386/timex.h Fri Jul 11 09:56:33 2003
@@ -15,7 +15,11 @@
#ifdef CONFIG_MELAN
# define CLOCK_TICK_RATE 1189200 /* AMD Elan has different frequency! */
#else
-# define CLOCK_TICK_RATE 1193182 /* Underlying HZ */
+# ifdef CONFIG_X86_XBOX
+# define CLOCK_TICK_RATE 1124998 /* so has the Xbox */
+# else
+# define CLOCK_TICK_RATE 1193180 /* Underlying HZ */
+# endif
#endif
#endif
===================================================================
This BitKeeper patch contains the following changesets:
1.1404
## Wrapped with uu ##
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^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: [PATCH] add xbox subarchitecture
2003-07-11 8:29 ` Anders Gustafsson
@ 2003-07-11 8:45 ` Christoph Hellwig
2003-07-11 9:03 ` Anders Gustafsson
0 siblings, 1 reply; 6+ messages in thread
From: Christoph Hellwig @ 2003-07-11 8:45 UTC (permalink / raw)
To: Anders Gustafsson; +Cc: torvalds, linux-kernel
On Fri, Jul 11, 2003 at 10:29:37AM +0200, Anders Gustafsson wrote:
> I don't really know how to make clear it's not a gcc problem. But if it was,
> why doesn't it crash on pc and 1.0 xboxen? And why does it crash on kernels
> compiled with 2.95, with or without optimization? I really wish I had the
> explaination to this problem.
Oh well, stupid crappy hardware...
> (btw, everyone at LinuxTag should come to the xbox-linux booth and say hi :)
Been there, done that. (but you've been sitting in the corner busily hackin')
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: [PATCH] add xbox subarchitecture
2003-07-11 8:45 ` Christoph Hellwig
@ 2003-07-11 9:03 ` Anders Gustafsson
0 siblings, 0 replies; 6+ messages in thread
From: Anders Gustafsson @ 2003-07-11 9:03 UTC (permalink / raw)
To: Christoph Hellwig; +Cc: linux-kernel
On Fri, Jul 11, 2003 at 09:45:11AM +0100, Christoph Hellwig wrote:
>
> > (btw, everyone at LinuxTag should come to the xbox-linux booth and say hi :)
>
> Been there, done that. (but you've been sitting in the corner busily hackin')
Yes, that was probably me. But I wasn't that busily hackin', more like
waiting for bitkeeper to finish its consistency check.
--
Anders Gustafsson - andersg@0x63.nu - http://0x63.nu/
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: [PATCH] add xbox subarchitecture
@ 2003-07-10 19:37 Matthew Wilcox
0 siblings, 0 replies; 6+ messages in thread
From: Matthew Wilcox @ 2003-07-10 19:37 UTC (permalink / raw)
To: Anders Gustafsson; +Cc: linux-kernel
> diff -Nru a/include/asm-i386/timex.h b/include/asm-i386/timex.h
> --- a/include/asm-i386/timex.h Thu Jul 10 18:07:08 2003
> +++ b/include/asm-i386/timex.h Thu Jul 10 18:07:08 2003
> @@ -15,7 +15,11 @@
> #ifdef CONFIG_MELAN
> # define CLOCK_TICK_RATE 1189200 /* AMD Elan has different frequency! */
> #else
> -# define CLOCK_TICK_RATE 1193182 /* Underlying HZ */
> +# ifdef CONFIG_X86_XBOX
> +# define CLOCK_TICK_RATE 1124998 /* so has the Xbox */
> +# else
> +# define CLOCK_TICK_RATE 1193180 /* Underlying HZ */
> +# endif
> #endif
> #endif
How about more simply:
#ifdef CONFIG_MELAN
# define CLOCK_TICK_RATE 1189200 /* AMD Elan has different frequency! */
+#elif defined(CONFIG_X86_XBOX)
+# define CLOCK_TICK_RATE 1124998 /* so has the Xbox */
#else
# define CLOCK_TICK_RATE 1193182 /* Underlying HZ */
#endif
--
"It's not Hollywood. War is real, war is primarily not about defeat or
victory, it is about death. I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk
^ permalink raw reply [flat|nested] 6+ messages in thread
end of thread, other threads:[~2003-07-11 8:48 UTC | newest]
Thread overview: 6+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2003-07-10 17:28 [PATCH] add xbox subarchitecture Anders Gustafsson
2003-07-10 18:09 ` Christoph Hellwig
2003-07-11 8:29 ` Anders Gustafsson
2003-07-11 8:45 ` Christoph Hellwig
2003-07-11 9:03 ` Anders Gustafsson
2003-07-10 19:37 Matthew Wilcox
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