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Commit 79a5d877 authored by Anton Blanchard's avatar Anton Blanchard
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Merge samba.org:/scratch/anton/linux-2.5 

into samba.org:/scratch/anton/linux-2.5_ppc64
parents 1fe53e2a 91813920
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Documentation/filesystems/Exporting 0 → 100644
View file @ 79a5d877
Making Filesystems Exportable
=============================
Most filesystem operations require a dentry (or two) as a starting
point. Local applications have a reference-counted hold on suitable
dentrys via open file descriptors or cwd/root. However remote
applications that access a filesystem via a remote filesystem protocol
such as NFS may not be able to hold such a reference, and so need a
different way to refer to a particular dentry. As the alternative
form of reference needs to be stable across renames, truncates, and
server-reboot (among other things, though these tend to be the most
problematic), there is no simple answer like 'filename'.
The mechanism discussed here allows each filesystem implementation to
specify how to generate an opaque (out side of the filesystem) byte
string for any dentry, and how to find an appropriate dentry for any
given opaque byte string.
This byte string will be called a "filehandle fragment" as it
corresponds to part of an NFS filehandle.
A filesystem which supports the mapping between filehandle fragments
and dentrys will be termed "exportable".
Dcache Issues
-------------
The dcache normally contains a proper prefix of any given filesystem
tree. This means that if any filesystem object is in the dcache, then
all of the ancestors of that filesystem object are also in the dcache.
As normal access is by filename this prefix is created naturally and
maintained easily (by each object maintaining a reference count on
it's parent).
However when objects are included into the dcache by interpreting a
filehandle fragment, there is no automatic creation of a path prefix
for the object. This leads to two related but distinct features of
the dcache that are not needed for normal filesystem access.
1/ The dcache must sometimes contain objects that are not part of the
proper prefix. i.e that are not connected to the root.
2/ The dcache must be prepared for a newly found (via ->lookup) directory
to already have a (non-connected) dentry, and must be able to move
that dentry into place (based on the parent and name in the
->lookup). This is particuarly needed for directories as
it is a dcache invarient that directories only have one dentry.
To implement these features, the dcache has:
a/ A dentry flag DCACHE_DISCONNECTED which is set on
and dentry that might not be part of the proper prefix.
This is set when anonymous dentries are created, and cleared when a
dentry is noticed to be a child on a dentry which is in the proper
prefix.
b/ A per-superblock list "s_anon" of dentries which are the roots of
subtrees that are not in the proper prefix. These dentries, as
well as the proper prefix, need to be released at unmount time. As
these dentries will not be hashed, they are linked together on the
d_hash list_head.
c/ Helper routines to allocate anonymous dentries, and to help attach
loose directory dentries at lookup time. They are:
d_alloc_anon(inode) will return a dentry for the given inode.
If the inode already has a dentry, one of those is returned.
If it doesn't, a new anonymous (IS_ROOT and
DCACHE_DISCONNECTED) dentry is allocated and attached.
In the case of a directory, care is taken that only one dentry
can ever be attached.
d_splice_alias(inode, dentry) will make sure that there is a
dentry with the same name and parent as the given dentry, and
which refers to the given inode.
If the inode is a directory and already has a dentry, then that
dentry is d_moved over the given dentry.
If the passed dentry gets attached, care is taken that this is
mutually exclusive to a d_alloc_anon operation.
If the passed dentry is used, NULL is returned, else the used
dentry is returned. This corresponds to the calling pattern of
->lookup.
Filesystem Issues
-----------------
For a filesystem to be exportable it must:
1/ provide the filehandle fragment routines described below.
2/ make sure that d_splice_alias is used rather than d_add
when ->lookup finds an inode for a given parent and name.
Typically the ->lookup routine will end:
if (inode)
return d_splice(inode, dentry);
d_add(dentry, inode);
return NULL;
}
A file system implementation declares that instances of the filesystem
are exportable by setting the s_export_op field in the struct
super_block. This field must point to a "struct export_operations"
struct which could potentially be full of NULLs, though normally at
least get_parent will be set.
The primary operations are decode_fh and encode_fh.
decode_fh takes a filehandle fragment and tries to find or create a
dentry for the object referred to by the filehandle.
encode_fh takes a dentry and creates a filehandle fragment which can
later be used to find/create a dentry for the same object.
decode_fh will probably make use of "find_exported_dentry".
This function lives in the "exportfs" module which a filesystem does
not need unless it is being exported. So rather that calling
find_exported_dentry directly, each filesystem should call it through
the find_exported_dentry pointer in it's export_operations table.
This field is set correctly by the exporting agent (e.g. nfsd) when a
filesystem is exported, and before any export operations are called.
find_exported_dentry needs three support functions from the
filesystem:
get_name. When given a parent dentry and a child dentry, this
should find a name in the directory identified by the parent
dentry, which leads to the object identified by the child dentry.
If no get_name function is supplied, a default implementation
which used vfs_readdir to find potential names, and matches inode
numbers to find the correct match.
get_parent. When given a dentry for a directory, this should return
a dentry for the parent. Quite possibly the parent dentry will
have been allocated by d_alloc_anon.
The default get_parent function just returns an error so any
filehandle lookup that requires finding a parent will fail.
->lookup("..") is *not* used as a default as it can leave ".."
entries in the dcache which are too messy to work with.
get_dentry. When given a opaque datum, this should find the
implied object and create a dentry for it (possibly with
d_alloc_anon).
The opaque datum is whatever is passed down by the decode_fh
function, and is often simply a fragment of the filehandle
fragment.
decode_fh passes two datums through find_exported_dentry. One that
should be used to identify the target object, and one that can be
used to identify the objects parent, should that be necessary.
The default get_dentry function assumes that the datum contains an
inode number and a generation number, and it attempts to get the
inode using "iget" and check it's validity by matching the
generation number. A filesystem should only depend on the default
if iget can safely be used this way.
If decode_fh and/or encode_fh are left as NULL, then default
implementations are used. These defaults are suitable for ext2 and
extremely similar filesystems (like ext3).
The default encode_fh creates a filehandle fragment from the inode
number and generation number of the target together with the inode
number and generation number of the parent (if the parent is
required).
The default decode_fh extract the target and parent datums from the
filehandle assuming the format used by the default encode_fh and
passed them to find_exported_dentry.
A filehandle fragment consists of an array of 1 or more 4byte words.
Together with a one byte "type".
The decode_fh routine should not depend on the stated size that is
passed to it. This size may be larger than the original filehandle
generated by encode_fh, in which case it will have been padded with
nuls. Rather, the encode_fh routine should choose a "type" which
indicates the decode_fh how much of the filehandle is valid, and how
it should be interpreted.
Documentation/filesystems/devfs/ChangeLog
View file @ 79a5d877
......@@ -1905,3 +1905,10 @@ Changes for patch v209
- Fixed bitfield data type for <devfs_*alloc_devnum>
- Made major bitfield type and initialiser 64 bit safe
===============================================================================
Changes for patch v210
- Updated fs/devfs/util.c to fix shift warning on 64 bit machines
Thanks to Anton Blanchard <anton@samba.org>
- Updated README from master HTML file
Documentation/filesystems/devfs/README
View file @ 79a5d877
......@@ -3,7 +3,7 @@ Devfs (Device File System) FAQ
Linux Devfs (Device File System) FAQ
Richard Gooch
4-APR-2002
7-APR-2002
Document languages:
......@@ -1591,6 +1591,20 @@ mount -t none devfs /dev
Mount by volume LABEL=<label> doesn't work with
devfs
Most probably you are not mounting devfs onto /dev. What
happens is that if your kernel config has CONFIG_DEVFS_FS=y
then the contents of /proc/partitions will have the devfs
names (such as scsi/host0/bus0/target0/lun0/part1). The
contents of /proc/partitions are used by mount(8) when
mounting by volume label. If devfs is not mounted on /dev,
then mount(8) will fail to find devices. The solution is to
make sure that devfs is mounted on /dev. See above for how to
do that.
......
Documentation/filesystems/porting
View file @ 79a5d877
Changes since 2.5.0:
---
[recommeneded]
[recommended]
New helpers: sb_bread(), sb_getblk(), sb_get_hash_table(), set_bh(),
sb_set_blocksize() and sb_min_blocksize().
......@@ -9,7 +9,7 @@ New helpers: sb_bread(), sb_getblk(), sb_get_hash_table(), set_bh(),
Use them.
---
[recommeneded]
[recommended]
New methods: ->alloc_inode() and ->destroy_inode().
......@@ -123,3 +123,19 @@ went in - and hadn't been documented ;-/). Just remove it from fs_flags
->setattr() is called without BKL now. Caller _always_ holds ->i_sem, so
watch for ->i_sem-grabbing code that might be used by your ->setattr().
Callers of notify_change() need ->i_sem now.
---
[recommended]
New super_block field "struct export_operations *s_export_op" for
explicit support for exporting, e.g. via NFS. The structure is fully
documented at its declaration in include/linux/fs.h, and in
Documentation/filesystems/Exporting.
Briefly it allows for the definition of decode_fh and encode_fh operations
to encode and decode filehandles, and allows the filesystem to use
a standard helper function for decode_fh, and provide file-system specific
support for this helper, particularly get_parent.
It is planned that this will be required for exporting once the code
settles down a bit.
Documentation/usb/dc2xx.txt deleted 100644 → 0
View file @ 1fe53e2a
14 April 2000
david-b@pacbell.net
This is an overview of how to use the "dc2xx" USB driver with certain
digital still cameras from Kodak and other vendors.
CAMERAS
This driver will mostly be used with Kodak DC-2xx series digital still
cameras, but it should be trivial to tell it about several non-Kodak
USB-enabled cameras.
You'll most likely want to hook it up to recent versions of "gPhoto"
(www.gphoto.org), since version 0.4 and later know how to use it to talk
to Kodak DC-240 and DC-280 cameras over USB.
In addition the DC-220, DC-260, DC-265, and DC-290 are also recognized.
However, like other cameras using the "Digita OS" (from www.flashpoint.com)
there is no gPhoto support for this camera. There is a python script
for accessing these cameras (see archives of the linux-usb mailing list)
and a "Digita Services" library that can also use this driver.
The HP PhotoSmart C500 should also work, since it's another Digita camera
with USB support.
USB HARDWARE
Recent kernels have had no particular problems using this driver with
either OHCI or UHCI chipsets, and have worked on the PowerMac platform.
Note that in some cases changes in BIOS settings may be needed before
your USB works. At least one user has reported a need for SMP-related
settings as well, and some old hardware may not handle USB correctly.
SETUP
Configure in the DC2XX USB driver, and have it in your kernel. It works
as a module, or compiled in directly.
Create at least one device, perhaps like this (both read and write):
# mknod -m 0660 /dev/usb/dc2xx0 c 180 80
# mknod -m 0660 /dev/usb/dc2xx1 c 180 81
...
NOTE: you would normally configure PAM so that the user logged in at
the console is granted ownership of these devices. console.perms(5)
explains how to do this.
The driver supports multiple device nodes. The USB framework supports
a maximum of sixteen device nodes (up to minor device number 96).
When you plug in one camera, it will use the first device node (dc2xx0
in the example above). A second camera will use the second device node,
and so on.
SANITY TESTING
First: if you've got /proc support, make sure that the driver has hooked
itself up correctly.
- You should see an entry in /proc/bus/usb/drivers for "dc2xx",
if you enabled USB /proc support and correctly mounted the
usbdevfs on /proc/bus/usb.
Second: when you connect your camera to the computer, does it get recognized
by the driver? (Make sure the camera is powered on!)
- if you've got /proc/bus/usb/devices, you should see an entry
something like this. The "ProdID" may be different if you didn't
plug in a DC-240, as may the strings presented, but "Driver=dc2xx"
had better be there.
T: Lev=01 Prnt=00 Port=00 Cnt=01 Dev#= 1 Spd=12 MxCh= 0
D: Ver= 1.00 Cls=00(>ifc ) Sub=00 Prot=00 MxPS= 8 #Cfgs= 1
P: Vendor=040a ProdID=0120 Rev= 1.08
S: Manufacturer=Eastman Kodak Company
S: Product=KODAK DC240 Zoom Digital Camera
C:* #Ifs= 1 Cfg#= 1 Atr=40 MxPwr=100mA
I: If#= 0 Alt= 0 #EPs= 2 Cls=00(>ifc ) Sub=00 Prot=00 Driver=dc2xx
E: Ad=01(O) Atr=02(Bulk) MxPS= 64 Ivl= 0ms
E: Ad=82(I) Atr=02(Bulk) MxPS= 64 Ivl= 0ms
- see if "dmesg" output tells you that you plugged in your camera.
Manufacturer: Eastman Kodak Company
Product: KODAK DC240 Zoom Digital Camera
dc2xx.c: USB Camera #0 connected
Third: (optional) can you use gPhoto to talk to the camera?
- When you configure your camera, tell it to use "/dev/usb/dc2xx0"
(or whatever name you used). Right now, gPhoto emits a diagnostic
message (non-GUI) saying that it since it didn't act like a TTY,
it's assuming it's got a USB connection.
- With the camera turned on, get the "camera summary". It'll
talk to the camera -- and tell you you're using USB.
If you got that far, you should be able to use everything fine.
ADDITIONAL INFORMATION
You may find that you need more driver-specific information, which is
currently accessible through a link from http://www.linux-usb.org/
along with other Linux USB resources.
Makefile
View file @ 79a5d877
VERSION = 2
PATCHLEVEL = 5
SUBLEVEL = 8
SUBLEVEL = 9
EXTRAVERSION =
KERNELRELEASE=$(VERSION).$(PATCHLEVEL).$(SUBLEVEL)$(EXTRAVERSION)
......
Rules.make
View file @ 79a5d877
......@@ -126,8 +126,10 @@ endif
# for make >= 3.78 the following is cleaner:
# multi-used := $(foreach m,$(obj-y) $(obj-m), $(if $($(basename $(m))-objs), $(m)))
multi-used-y := $(sort $(foreach m,$(obj-y),$(patsubst %,$(m),$($(basename $(m))-objs))))
multi-used-m := $(sort $(foreach m,$(obj-m),$(patsubst %,$(m),$($(basename $(m))-objs))))
__obj-y = $(filter-out export.o,$(obj-y))
__obj-m = $(filter-out export.o,$(obj-m))
multi-used-y := $(sort $(foreach m,$(__obj-y),$(patsubst %,$(m),$($(basename $(m))-objs))))
multi-used-m := $(sort $(foreach m,$(__obj-m),$(patsubst %,$(m),$($(basename $(m))-objs))))
ld-multi-used-y := $(filter-out $(list-multi),$(multi-used-y))
ld-multi-used-m := $(filter-out $(list-multi),$(multi-used-m))
ld-multi-objs-y := $(foreach m, $(ld-multi-used-y), $($(basename $(m))-objs))
......
arch/alpha/math-emu/Makefile
View file @ 79a5d877
......@@ -11,11 +11,8 @@ obj-y := math.o qrnnd.o
else
list-multi := math-emu.o
math-emu-objs := math.o qrnnd.o
obj-m := math-emu.o
math-emu.o: $(math-emu-objs)
$(LD) -r -o $@ $(math-emu-objs)
endif
......
arch/arm/mach-sa1100/Makefile
View file @ 79a5d877
#
# Makefile for the linux kernel.
#
# Note! Dependencies are done automagically by 'make dep', which also
# removes any old dependencies. DON'T put your own dependencies here
# unless it's something special (ie not a .c file).
USE_STANDARD_AS_RULE := true
......@@ -115,7 +112,6 @@ export-objs += yopy.o
obj-$(CONFIG_LEDS) += $(led-y)
# SA1110 USB client support
list-multi += sa1100usb_core.o
sa1100usb_core-objs := usb_ctl.o usb_ep0.o usb_recv.o usb_send.o
obj-$(CONFIG_SA1100_USB) += sa1100usb_core.o
obj-$(CONFIG_SA1100_USB_NETLINK) += usb-eth.o
......@@ -125,7 +121,3 @@ obj-$(CONFIG_SA1100_USB_CHAR) += usb-char.o
obj-$(CONFIG_PM) += pm.o sleep.o
include $(TOPDIR)/Rules.make
sa1100usb_core.o: $(sa1100usb_core-objs)
$(LD) -r -o $@ $(sa1100usb_core-objs)
arch/arm/nwfpe/Makefile
View file @ 79a5d877
#
# linux/arch/arm/nwfpe/Makefile
#
# Copyright (C) 1998, 1999, 2001 Philip Blundell
#
......@@ -12,8 +10,6 @@ obj-y :=
obj-m :=
obj-n :=
list-multi := nwfpe.o
obj-$(CONFIG_FPE_NWFPE) += nwfpe.o
nwfpe-objs := fpa11.o fpa11_cpdo.o fpa11_cpdt.o fpa11_cprt.o \
......@@ -27,6 +23,3 @@ nwfpe-objs += entry.o
endif
include $(TOPDIR)/Rules.make
nwfpe.o: $(nwfpe-objs)
$(LD) -r -o $@ $(nwfpe-objs)
arch/cris/drivers/ide.c
View file @ 79a5d877
......@@ -272,13 +272,17 @@ init_e100_ide (void)
printk("ide: ETRAX 100LX built-in ATA DMA controller\n");
/* first initialize the channel interface data */
for(h = 0; h < MAX_HWIFS; h++) {
struct ata_channel *hwif = &ide_hwifs[h];
hwif->chipset = ide_etrax100;
hwif->tuneproc = &tune_e100_ide;
hwif->dmaproc = &e100_dmaproc;
hwif->ideproc = &e100_ideproc;
hwif->ata_read = e100_ide_input_data;
hwif->ata_write = e100_ide_input_data;
hwif->atapi_read = e100_atapi_read;
hwif->atapi_write = e100_atapi_write;
}
/* actually reset and configure the etrax100 ide/ata interface */
......@@ -375,12 +379,12 @@ static etrax_dma_descr mydescr;
* so if an odd bytecount is specified, be sure that there's at least one
* extra byte allocated for the buffer.
*/
static void
e100_atapi_input_bytes (ide_drive_t *drive, void *buffer, unsigned int bytecount)
static void
e100_atapi_read(ide_drive_t *drive, void *buffer, unsigned int bytecount)
{
ide_ioreg_t data_reg = IDE_DATA_REG;
D(printk("atapi_input_bytes, dreg 0x%x, buffer 0x%x, count %d\n",
D(printk("atapi_read, dreg 0x%x, buffer 0x%x, count %d\n",
data_reg, buffer, bytecount));
if(bytecount & 1) {
......@@ -454,12 +458,12 @@ e100_atapi_input_bytes (ide_drive_t *drive, void *buffer, unsigned int bytecount
#endif
}
static void
e100_atapi_output_bytes (ide_drive_t *drive, void *buffer, unsigned int bytecount)
static void
e100_atapi_write(ide_drive_t *drive, void *buffer, unsigned int bytecount)
{
ide_ioreg_t data_reg = IDE_DATA_REG;
D(printk("atapi_output_bytes, dreg 0x%x, buffer 0x%x, count %d\n",
D(printk("atapi_write, dreg 0x%x, buffer 0x%x, count %d\n",
data_reg, buffer, bytecount));
if(bytecount & 1) {
......@@ -544,7 +548,7 @@ e100_atapi_output_bytes (ide_drive_t *drive, void *buffer, unsigned int bytecoun
static void
e100_ide_input_data (ide_drive_t *drive, void *buffer, unsigned int wcount)
{
e100_atapi_input_bytes(drive, buffer, wcount << 2);
e100_atapi_read(drive, buffer, wcount << 2);
}
/*
......@@ -553,7 +557,7 @@ e100_ide_input_data (ide_drive_t *drive, void *buffer, unsigned int wcount)
static void
e100_ide_output_data (ide_drive_t *drive, void *buffer, unsigned int wcount)
{
e100_atapi_output_bytes(drive, buffer, wcount << 2);
e100_atapi_write(drive, buffer, wcount << 2);
}
/*
......@@ -570,11 +574,11 @@ e100_ideproc (ide_ide_action_t func, ide_drive_t *drive,
case ideproc_ide_output_data:
e100_ide_input_data(drive, buffer, length);
break;
case ideproc_atapi_input_bytes:
e100_atapi_input_bytes(drive, buffer, length);
case ideproc_atapi_read:
e100_atapi_read(drive, buffer, length);
break;
case ideproc_atapi_output_bytes:
e100_atapi_output_bytes(drive, buffer, length);
case ideproc_atapi_write:
e100_atapi_write(drive, buffer, length);
break;
default:
printk("e100_ideproc: unsupported func %d!\n", func);
......
arch/i386/kernel/bluesmoke.c
View file @ 79a5d877
......@@ -76,11 +76,11 @@ static void __init intel_init_thermal(struct cpuinfo_x86 *c)
unsigned int cpu = smp_processor_id();
/* Thermal monitoring */
if (!test_bit(X86_FEATURE_ACPI, &c->x86_capability))
if (!test_bit(X86_FEATURE_ACPI, c->x86_capability))
return; /* -ENODEV */
/* Clock modulation */
if (!test_bit(X86_FEATURE_ACC, &c->x86_capability))
if (!test_bit(X86_FEATURE_ACC, c->x86_capability))
return; /* -ENODEV */
rdmsr(MSR_IA32_MISC_ENABLE, l, h);
......
arch/i386/kernel/microcode.c
View file @ 79a5d877
......@@ -338,7 +338,7 @@ static ssize_t microcode_write(struct file *file, const char *buf, size_t len, l
return -EINVAL;
}
if ((len >> PAGE_SHIFT) > num_physpages) {
printk(KERN_ERR "microcode: too much data (max %d pages)\n", num_physpages);
printk(KERN_ERR "microcode: too much data (max %ld pages)\n", num_physpages);
return -EINVAL;
}
down_write(&microcode_rwsem);
......
arch/i386/kernel/mpparse.c
View file @ 79a5d877
......@@ -38,6 +38,8 @@ int smp_found_config;
int apic_version [MAX_APICS];
int mp_bus_id_to_type [MAX_MP_BUSSES];
int mp_bus_id_to_node [MAX_MP_BUSSES];
int mp_bus_id_to_local [MAX_MP_BUSSES];
int quad_local_to_mp_bus_id [NR_CPUS/4][4];
int mp_bus_id_to_pci_bus [MAX_MP_BUSSES] = { [0 ... MAX_MP_BUSSES-1] = -1 };
int mp_current_pci_id;
......@@ -237,13 +239,17 @@ void __init MP_processor_info (struct mpc_config_processor *m)
static void __init MP_bus_info (struct mpc_config_bus *m)
{
char str[7];
int quad;
memcpy(str, m->mpc_bustype, 6);
str[6] = 0;
if (clustered_apic_mode) {
mp_bus_id_to_node[m->mpc_busid] = translation_table[mpc_record]->trans_quad;
printk("Bus #%d is %s (node %d)\n", m->mpc_busid, str, mp_bus_id_to_node[m->mpc_busid]);
quad = translation_table[mpc_record]->trans_quad;
mp_bus_id_to_node[m->mpc_busid] = quad;
mp_bus_id_to_local[m->mpc_busid] = translation_table[mpc_record]->trans_local;
quad_local_to_mp_bus_id[quad][translation_table[mpc_record]->trans_local] = m->mpc_busid;
printk("Bus #%d is %s (node %d)\n", m->mpc_busid, str, quad);
} else {
Dprintk("Bus #%d is %s\n", m->mpc_busid, str);
}
......@@ -320,13 +326,14 @@ static void __init MP_lintsrc_info (struct mpc_config_lintsrc *m)
static void __init MP_translation_info (struct mpc_config_translation *m)
{
printk("Translation: record %d, type %d, quad %d, global %d, local %d\n", mpc_record, m->trans_type,
m->trans_quad, m->trans_global, m->trans_local);
printk("Translation: record %d, type %d, quad %d, global %d, local %d\n", mpc_record, m->trans_type, m->trans_quad, m->trans_global, m->trans_local);
if (mpc_record >= MAX_MPC_ENTRY)
printk("MAX_MPC_ENTRY exceeded!\n");
else
translation_table[mpc_record] = m; /* stash this for later */
if (m->trans_quad+1 > numnodes)
numnodes = m->trans_quad+1;
}
/*
......@@ -492,10 +499,6 @@ static int __init smp_read_mpc(struct mp_config_table *mpc)
}
++mpc_record;
}
if (clustered_apic_mode && nr_ioapics > 2) {
/* don't initialise IO apics on secondary quads */
nr_ioapics = 2;
}
if (!num_processors)
printk(KERN_ERR "SMP mptable: no processors registered!\n");
return num_processors;
......
arch/ia64/Config.help
View file @ 79a5d877
......@@ -414,12 +414,18 @@ CONFIG_IA64_GENERIC
HP-simulator For the HP simulator
(<http://software.hp.com/ia64linux/>).
HP-zx1 For HP zx1 platforms.
SN1-simulator For the SGI SN1 simulator.
DIG-compliant For DIG ("Developer's Interface Guide") compliant
system.
systems.
If you don't know what to do, choose "generic".
CONFIG_IA64_HP_ZX1
Build a kernel that runs on HP zx1-based systems. This adds support
for the zx1 IOMMU and makes root bus bridges appear in PCI config space
(required for zx1 agpgart support).
CONFIG_IA64_PAGE_SIZE_4KB
This lets you select the page size of the kernel. For best IA-64
performance, a page size of 8KB or 16KB is recommended. For best
......@@ -440,6 +446,32 @@ CONFIG_ITANIUM_BSTEP_SPECIFIC
with a B-step CPU. You have a B-step CPU if the "revision" field in
/proc/cpuinfo has a value in the range from 1 to 4.
CONFIG_IA64_SGI_AUTOTEST
Build a kernel used for hardware validation. If you include the
keyword "autotest" on the boot command line, the kernel does NOT boot.
Instead, it starts all cpus and runs cache coherency tests instead.
If unsure, say N.
CONFIG_IA64_SGI_SN_DEBUG
Turns on extra debugging code in the SGI SN (Scalable NUMA) platform
for IA64. Unless you are debugging problems on an SGI SN IA64 box,
say N.
CONFIG_IA64_SGI_SN_SIM
If you are compiling a kernel that will run under SGI's IA64
simulator (Medusa) then say Y, otherwise say N.
CONFIG_SERIAL_SGI_L1_PROTOCOL
Uses protocol mode instead of raw mode for the level 1 console on the
SGI SN (Scalable NUMA) platform for IA64. If you are compiling for
an SGI SN box then Y is the recommended value, otherwise say N.
CONFIG_PCIBA
IRIX PCIBA-inspired user mode PCI interface for the SGI SN (Scalable
NUMA) platform for IA64. Unless you are compiling a kernel for an
SGI SN IA64 box, say N.
CONFIG_IA64_MCA
Say Y here to enable machine check support for IA-64. If you're
unsure, answer Y.
......
arch/ia64/Makefile
View file @ 79a5d877
......@@ -22,7 +22,7 @@ CFLAGS := $(CFLAGS) -pipe $(EXTRA) -ffixed-r13 -mfixed-range=f10-f15,f32-f127 \
# -ffunction-sections
CFLAGS_KERNEL := -mconstant-gp
GCC_VERSION=$(shell $(CROSS_COMPILE)$(HOSTCC) -v 2>&1 | fgrep 'gcc version' | cut -f3 -d' ' | cut -f1 -d'.')
GCC_VERSION=$(shell $(CC) -v 2>&1 | fgrep 'gcc version' | cut -f3 -d' ' | cut -f1 -d'.')
ifneq ($(GCC_VERSION),2)
CFLAGS += -frename-registers --param max-inline-insns=2000
......@@ -33,16 +33,11 @@ ifeq ($(CONFIG_ITANIUM_BSTEP_SPECIFIC),y)
endif
ifdef CONFIG_IA64_GENERIC
CORE_FILES := arch/$(ARCH)/hp/hp.a \
arch/$(ARCH)/sn/sn.o \
arch/$(ARCH)/dig/dig.a \
arch/$(ARCH)/sn/io/sgiio.o \
CORE_FILES := arch/$(ARCH)/hp/hp.o \
arch/$(ARCH)/dig/dig.a \
$(CORE_FILES)
SUBDIRS := arch/$(ARCH)/hp \
arch/$(ARCH)/sn/sn1 \
arch/$(ARCH)/sn \
arch/$(ARCH)/dig \
arch/$(ARCH)/sn/io \
$(SUBDIRS)
else # !GENERIC
......@@ -50,7 +45,16 @@ else # !GENERIC
ifdef CONFIG_IA64_HP_SIM
SUBDIRS := arch/$(ARCH)/hp \
$(SUBDIRS)
CORE_FILES := arch/$(ARCH)/hp/hp.a \
CORE_FILES := arch/$(ARCH)/hp/hp.o \
$(CORE_FILES)
endif
ifdef CONFIG_IA64_HP_ZX1
SUBDIRS := arch/$(ARCH)/hp \
arch/$(ARCH)/dig \
$(SUBDIRS)
CORE_FILES := arch/$(ARCH)/hp/hp.o \
arch/$(ARCH)/dig/dig.a \
$(CORE_FILES)
endif
......
arch/ia64/config.in
View file @ 79a5d877
......@@ -22,6 +22,7 @@ choice 'IA-64 system type' \
"generic CONFIG_IA64_GENERIC \
DIG-compliant CONFIG_IA64_DIG \
HP-simulator CONFIG_IA64_HP_SIM \
HP-zx1 CONFIG_IA64_HP_ZX1 \
SGI-SN1 CONFIG_IA64_SGI_SN1 \
SGI-SN2 CONFIG_IA64_SGI_SN2" generic
......@@ -56,7 +57,7 @@ if [ "$CONFIG_MCKINLEY" = "y" ]; then
fi
fi
if [ "$CONFIG_IA64_DIG" = "y" ]; then
if [ "$CONFIG_IA64_GENERIC" = "y" ] || [ "$CONFIG_IA64_DIG" = "y" ] || [ "$CONFIG_IA64_HP_ZX1" = "y" ]; then
bool ' Enable IA-64 Machine Check Abort' CONFIG_IA64_MCA
define_bool CONFIG_PM y
fi
......
arch/ia64/defconfig
View file @ 79a5d877
......@@ -23,7 +23,7 @@ CONFIG_MODVERSIONS=y
# CONFIG_KMOD is not set
#
# General setup
# Processor type and features
#
CONFIG_IA64=y
# CONFIG_ISA is not set
......@@ -32,21 +32,22 @@ CONFIG_IA64=y
# CONFIG_SBUS is not set
CONFIG_RWSEM_GENERIC_SPINLOCK=y
# CONFIG_RWSEM_XCHGADD_ALGORITHM is not set
CONFIG_ACPI=y
CONFIG_ACPI_EFI=y
CONFIG_ACPI_INTERPRETER=y
CONFIG_ACPI_KERNEL_CONFIG=y
CONFIG_ITANIUM=y
# CONFIG_MCKINLEY is not set
# CONFIG_IA64_GENERIC is not set
CONFIG_IA64_DIG=y
# CONFIG_IA64_HP_SIM is not set
# CONFIG_IA64_HP_ZX1 is not set
# CONFIG_IA64_SGI_SN1 is not set
# CONFIG_IA64_SGI_SN2 is not set
# CONFIG_IA64_PAGE_SIZE_4KB is not set
# CONFIG_IA64_PAGE_SIZE_8KB is not set
CONFIG_IA64_PAGE_SIZE_16KB=y
# CONFIG_IA64_PAGE_SIZE_64KB is not set
CONFIG_ACPI=y
CONFIG_ACPI_EFI=y
CONFIG_ACPI_INTERPRETER=y
CONFIG_ACPI_KERNEL_CONFIG=y
CONFIG_IA64_BRL_EMU=y
# CONFIG_ITANIUM_BSTEP_SPECIFIC is not set
CONFIG_IA64_L1_CACHE_SHIFT=6
......@@ -60,15 +61,23 @@ CONFIG_IA64_PALINFO=y
CONFIG_EFI_VARS=y
CONFIG_BINFMT_ELF=y
# CONFIG_BINFMT_MISC is not set
# CONFIG_ACPI_DEBUG is not set
CONFIG_ACPI_BUSMGR=y
CONFIG_ACPI_SYS=y
CONFIG_ACPI_CPU=y
#
# ACPI Support
#
CONFIG_ACPI=y
CONFIG_ACPI_EFI=y
CONFIG_ACPI_BOOT=y
CONFIG_ACPI_BUS=y
CONFIG_ACPI_INTERPRETER=y
CONFIG_ACPI_PCI=y
CONFIG_ACPI_POWER=y
CONFIG_ACPI_SYSTEM=y
CONFIG_ACPI_BUTTON=y
CONFIG_ACPI_AC=y
CONFIG_ACPI_EC=y
CONFIG_ACPI_CMBATT=y
CONFIG_ACPI_THERMAL=y
CONFIG_ACPI_FAN=m
CONFIG_ACPI_PROCESSOR=m
CONFIG_ACPI_THERMAL=m
# CONFIG_ACPI_DEBUG is not set
CONFIG_PCI=y
CONFIG_PCI_NAMES=y
# CONFIG_HOTPLUG is not set
......@@ -231,15 +240,13 @@ CONFIG_BLK_DEV_IDEDMA=y
# CONFIG_BLK_DEV_ALI15X3 is not set
# CONFIG_WDC_ALI15X3 is not set
# CONFIG_BLK_DEV_AMD74XX is not set
# CONFIG_AMD74XX_OVERRIDE is not set
# CONFIG_BLK_DEV_CMD64X is not set
# CONFIG_BLK_DEV_CY82C693 is not set
# CONFIG_BLK_DEV_CS5530 is not set
# CONFIG_BLK_DEV_HPT34X is not set
# CONFIG_HPT34X_AUTODMA is not set
# CONFIG_BLK_DEV_HPT366 is not set
CONFIG_BLK_DEV_PIIX=y
# CONFIG_PIIX_TUNING is not set
# CONFIG_BLK_DEV_PIIX is not set
# CONFIG_BLK_DEV_NS87415 is not set
# CONFIG_BLK_DEV_OPTI621 is not set
# CONFIG_BLK_DEV_PDC_ADMA is not set
......@@ -254,7 +261,6 @@ CONFIG_BLK_DEV_PIIX=y
# CONFIG_IDEDMA_IVB is not set
# CONFIG_IDEDMA_AUTO is not set
# CONFIG_DMA_NONPCI is not set
CONFIG_BLK_DEV_IDE_MODES=y
# CONFIG_BLK_DEV_ATARAID is not set
# CONFIG_BLK_DEV_ATARAID_PDC is not set
# CONFIG_BLK_DEV_ATARAID_HPT is not set
......@@ -691,8 +697,6 @@ CONFIG_MSDOS_PARTITION=y
# CONFIG_MINIX_SUBPARTITION is not set
# CONFIG_SOLARIS_X86_PARTITION is not set
# CONFIG_UNIXWARE_DISKLABEL is not set
CONFIG_EFI_PARTITION=y
# CONFIG_DEVFS_GUID is not set
# CONFIG_LDM_PARTITION is not set
# CONFIG_SGI_PARTITION is not set
# CONFIG_ULTRIX_PARTITION is not set
......@@ -726,6 +730,7 @@ CONFIG_NLS_DEFAULT="iso8859-1"
# CONFIG_NLS_CODEPAGE_949 is not set
# CONFIG_NLS_CODEPAGE_874 is not set
# CONFIG_NLS_ISO8859_8 is not set
# CONFIG_NLS_CODEPAGE_1250 is not set
# CONFIG_NLS_CODEPAGE_1251 is not set
# CONFIG_NLS_ISO8859_1 is not set
# CONFIG_NLS_ISO8859_2 is not set
......@@ -814,8 +819,9 @@ CONFIG_USB_UHCI=m
# USB Device Class drivers
#
# CONFIG_USB_AUDIO is not set
# CONFIG_USB_EMI26 is not set
# CONFIG_USB_BLUETOOTH is not set
# CONFIG_USB_BLUETOOTH_TTY is not set
# CONFIG_USB_ACM is not set
# CONFIG_USB_PRINTER is not set
# CONFIG_USB_STORAGE is not set
# CONFIG_USB_STORAGE_DEBUG is not set
# CONFIG_USB_STORAGE_DATAFAB is not set
......@@ -825,13 +831,12 @@ CONFIG_USB_UHCI=m
# CONFIG_USB_STORAGE_HP8200e is not set
# CONFIG_USB_STORAGE_SDDR09 is not set
# CONFIG_USB_STORAGE_JUMPSHOT is not set
# CONFIG_USB_ACM is not set
# CONFIG_USB_PRINTER is not set
#
# USB Human Interface Devices (HID)
#
CONFIG_USB_HID=m
CONFIG_USB_HIDINPUT=y
CONFIG_USB_HIDDEV=y
CONFIG_USB_KBD=m
CONFIG_USB_MOUSE=m
......@@ -849,23 +854,24 @@ CONFIG_USB_MOUSE=m
#
# USB Multimedia devices
#
# CONFIG_USB_DABUSB is not set
# CONFIG_USB_VICAM is not set
# CONFIG_USB_DSBR is not set
# CONFIG_USB_IBMCAM is not set
# CONFIG_USB_KONICAWC is not set
# CONFIG_USB_OV511 is not set
# CONFIG_USB_PWC is not set
# CONFIG_USB_SE401 is not set
# CONFIG_USB_STV680 is not set
# CONFIG_USB_VICAM is not set
# CONFIG_USB_DSBR is not set
# CONFIG_USB_DABUSB is not set
# CONFIG_USB_KONICAWC is not set
#
# USB Network adaptors
#
# CONFIG_USB_PEGASUS is not set
# CONFIG_USB_KAWETH is not set
# CONFIG_USB_CATC is not set
# CONFIG_USB_CDCETHER is not set
# CONFIG_USB_KAWETH is not set
# CONFIG_USB_PEGASUS is not set
# CONFIG_USB_RTL8150 is not set
# CONFIG_USB_USBNET is not set
#
......@@ -897,9 +903,11 @@ CONFIG_USB_MOUSE=m
# CONFIG_USB_SERIAL_KEYSPAN_USA18X is not set
# CONFIG_USB_SERIAL_KEYSPAN_USA19W is not set
# CONFIG_USB_SERIAL_KEYSPAN_USA49W is not set
# CONFIG_USB_SERIAL_MCT_U232 is not set
# CONFIG_USB_SERIAL_KLSI is not set
# CONFIG_USB_SERIAL_MCT_U232 is not set
# CONFIG_USB_SERIAL_PL2303 is not set
# CONFIG_USB_SERIAL_SAFE is not set
# CONFIG_USB_SERIAL_SAFE_PADDED is not set
# CONFIG_USB_SERIAL_CYBERJACK is not set
# CONFIG_USB_SERIAL_XIRCOM is not set
# CONFIG_USB_SERIAL_OMNINET is not set
......@@ -907,8 +915,10 @@ CONFIG_USB_MOUSE=m
#
# USB Miscellaneous drivers
#
# CONFIG_USB_RIO500 is not set
# CONFIG_USB_EMI26 is not set
# CONFIG_USB_TIGL is not set
# CONFIG_USB_AUERSWALD is not set
# CONFIG_USB_RIO500 is not set
#
# Library routines
......@@ -936,11 +946,3 @@ CONFIG_IA64_EARLY_PRINTK=y
# CONFIG_DEBUG_SPINLOCK is not set
# CONFIG_IA64_DEBUG_CMPXCHG is not set
# CONFIG_IA64_DEBUG_IRQ is not set
CONFIG_KDB=y
# CONFIG_KDB_MODULES is not set
# CONFIG_KDB_OFF is not set
#
# Load all symbols for debugging is required for KDB
#
CONFIG_KALLSYMS=y
arch/ia64/dig/setup.c
View file @ 79a5d877
......@@ -33,9 +33,6 @@
* is sufficient (the IDE driver will autodetect the drive geometry).
*/
char drive_info[4*16];
extern int pcat_compat;
unsigned char aux_device_present = 0xaa; /* XXX remove this when legacy I/O is gone */
void __init
dig_setup (char **cmdline_p)
......@@ -85,16 +82,4 @@ dig_setup (char **cmdline_p)
void __init
dig_irq_init (void)
{
if (pcat_compat) {
/*
* Disable the compatibility mode interrupts (8259 style), needs IN/OUT support
* enabled.
*/
printk("%s: Disabling PC-AT compatible 8259 interrupts\n", __FUNCTION__);
outb(0xff, 0xA1);
outb(0xff, 0x21);
} else {
printk("%s: System doesn't have PC-AT compatible dual-8259 setup. "
"Nothing to be done\n", __FUNCTION__);
}
}
arch/ia64/hp/Config.in 0 → 100644
View file @ 79a5d877
mainmenu_option next_comment
comment 'HP Simulator drivers'
bool 'Simulated Ethernet ' CONFIG_HP_SIMETH
bool 'Simulated serial driver support' CONFIG_HP_SIMSERIAL
if [ "$CONFIG_SCSI" != "n" ]; then
bool 'Simulated SCSI disk' CONFIG_HP_SIMSCSI
fi
endmenu
arch/ia64/hp/Makefile
View file @ 79a5d877
#
# ia64/platform/hp/Makefile
#
# Copyright (C) 2002 Hewlett-Packard Co.
# David Mosberger-Tang <davidm@hpl.hp.com>
# Copyright (C) 1999 Silicon Graphics, Inc.
# Copyright (C) Srinivasa Thirumalachar (sprasad@engr.sgi.com)
#
# arch/ia64/hp/Makefile
# Copyright (c) 2002 Matthew Wilcox for Hewlett Packard
all: hp.a
ALL_SUB_DIRS := sim zx1 common
O_TARGET := hp.a
O_TARGET := hp.o
obj-y := hpsim_console.o hpsim_irq.o hpsim_setup.o
obj-$(CONFIG_IA64_GENERIC) += hpsim_machvec.o
subdir-$(CONFIG_IA64_GENERIC) += $(ALL_SUB_DIRS)
subdir-$(CONFIG_IA64_HP_SIM) += sim
subdir-$(CONFIG_IA64_HP_ZX1) += zx1 common
obj-$(CONFIG_SIMETH) += simeth.o
obj-$(CONFIG_SIM_SERIAL) += simserial.o
obj-$(CONFIG_SCSI_SIM) += simscsi.o
clean::
SUB_DIRS := $(subdir-y)
obj-y += $(join $(subdir-y),$(subdir-y:%=/%.o))
include $(TOPDIR)/Rules.make
arch/ia64/hp/common/Makefile 0 → 100644
View file @ 79a5d877
#
# ia64/platform/hp/common/Makefile
#
# Copyright (C) 2002 Hewlett Packard
# Copyright (C) Alex Williamson (alex_williamson@hp.com)
#
O_TARGET := common.o
export-objs := sba_iommu.o
obj-y := sba_iommu.o
include $(TOPDIR)/Rules.make
#
# ia64/platform/hp/common/Makefile
#
# Copyright (C) 2002 Hewlett Packard
# Copyright (C) Alex Williamson (alex_williamson@hp.com)
#
O_TARGET := common.o
export-objs := sba_iommu.o
obj-y := sba_iommu.o
include $(TOPDIR)/Rules.make
arch/ia64/hp/common/sba_iommu.c 0 → 100644
View file @ 79a5d877
This source diff could not be displayed because it is too large. You can view the blob instead.
arch/ia64/hp/sim/Makefile 0 → 100644
View file @ 79a5d877
#
# ia64/platform/hp/sim/Makefile
#
# Copyright (C) 2002 Hewlett-Packard Co.
# David Mosberger-Tang <davidm@hpl.hp.com>
# Copyright (C) 1999 Silicon Graphics, Inc.
# Copyright (C) Srinivasa Thirumalachar (sprasad@engr.sgi.com)
#
O_TARGET := sim.o
obj-y := hpsim_console.o hpsim_irq.o hpsim_setup.o
obj-$(CONFIG_IA64_GENERIC) += hpsim_machvec.o
obj-$(CONFIG_HP_SIMETH) += simeth.o
obj-$(CONFIG_HP_SIMSERIAL) += simserial.o
obj-$(CONFIG_HP_SIMSCSI) += simscsi.o
include $(TOPDIR)/Rules.make
arch/ia64/hp/zx1/Makefile 0 → 100644
View file @ 79a5d877
#
# ia64/platform/hp/zx1/Makefile
#
# Copyright (C) 2002 Hewlett Packard
# Copyright (C) Alex Williamson (alex_williamson@hp.com)
#
O_TARGET := zx1.o
obj-y := hpzx1_misc.o
obj-$(CONFIG_IA64_GENERIC) += hpzx1_machvec.o
include $(TOPDIR)/Rules.make
#
# ia64/platform/hp/zx1/Makefile
#
# Copyright (C) 2002 Hewlett Packard
# Copyright (C) Alex Williamson (alex_williamson@hp.com)
#
O_TARGET := zx1.o
obj-y := hpzx1_misc.o
obj-$(CONFIG_IA64_GENERIC) += hpzx1_machvec.o
include $(TOPDIR)/Rules.make
arch/ia64/hp/zx1/hpzx1_machvec.c 0 → 100644
View file @ 79a5d877
#define MACHVEC_PLATFORM_NAME hpzx1
#include <asm/machvec_init.h>
#define MACHVEC_PLATFORM_NAME hpzx1
#include <asm/machvec_init.h>
arch/ia64/hp/zx1/hpzx1_misc.c 0 → 100644
View file @ 79a5d877
This diff is collapsed.
arch/ia64/ia32/binfmt_elf32.c
View file @ 79a5d877
......@@ -47,6 +47,8 @@ static void elf32_set_personality (void);
#define ELF_PLAT_INIT(_r) ia64_elf32_init(_r)
#define setup_arg_pages(bprm) ia32_setup_arg_pages(bprm)
#define elf_map elf32_map
#undef SET_PERSONALITY
#define SET_PERSONALITY(ex, ibcs2) elf32_set_personality()
/* Ugly but avoids duplication */
......
arch/ia64/ia32/sys_ia32.c
View file @ 79a5d877
......@@ -3003,7 +3003,7 @@ sys32_ptrace (int request, pid_t pid, unsigned int addr, unsigned int data,
if (request != PTRACE_KILL)
goto out;
}
if (child->p_pptr != current)
if (child->parent != current)
goto out;
switch (request) {
......
arch/ia64/kernel/Makefile
View file @ 79a5d877
......@@ -17,6 +17,7 @@ obj-y := acpi.o entry.o gate.o efi.o efi_stub.o ia64_ksyms.o irq.o irq_ia64.o ir
machvec.o pal.o process.o perfmon.o ptrace.o sal.o semaphore.o setup.o \
signal.o sys_ia64.o traps.o time.o unaligned.o unwind.o
obj-$(CONFIG_IA64_GENERIC) += iosapic.o
obj-$(CONFIG_IA64_HP_ZX1) += iosapic.o
obj-$(CONFIG_IA64_DIG) += iosapic.o
obj-$(CONFIG_IA64_PALINFO) += palinfo.o
obj-$(CONFIG_EFI_VARS) += efivars.o
......
arch/ia64/kernel/acpi.c
View file @ 79a5d877
This diff is collapsed.
arch/ia64/kernel/brl_emu.c
View file @ 79a5d877
......@@ -55,7 +55,7 @@ struct illegal_op_return
ia64_emulate_brl (struct pt_regs *regs, unsigned long ar_ec)
{
unsigned long bundle[2];
unsigned long opcode, btype, qp, offset;
unsigned long opcode, btype, qp, offset, cpl;
unsigned long next_ip;
struct siginfo siginfo;
struct illegal_op_return rv;
......@@ -158,9 +158,9 @@ ia64_emulate_brl (struct pt_regs *regs, unsigned long ar_ec)
* AR[PFS].pec = AR[EC]
* AR[PFS].ppl = PSR.cpl
*/
cpl = ia64_psr(regs)->cpl;
regs->ar_pfs = ((regs->cr_ifs & 0x3fffffffff)
| (ar_ec << 52)
| ((unsigned long) ia64_psr(regs)->cpl << 62));
| (ar_ec << 52) | (cpl << 62));
/*
* CFM.sof -= CFM.sol
......
arch/ia64/kernel/efi.c
View file @ 79a5d877
......@@ -155,10 +155,10 @@ efi_memmap_walk (efi_freemem_callback_t callback, void *arg)
case EFI_CONVENTIONAL_MEMORY:
if (!(md->attribute & EFI_MEMORY_WB))
continue;
if (md->phys_addr + (md->num_pages << 12) > mem_limit) {
if (md->phys_addr + (md->num_pages << EFI_PAGE_SHIFT) > mem_limit) {
if (md->phys_addr > mem_limit)
continue;
md->num_pages = (mem_limit - md->phys_addr) >> 12;
md->num_pages = (mem_limit - md->phys_addr) >> EFI_PAGE_SHIFT;
}
if (md->num_pages == 0) {
printk("efi_memmap_walk: ignoring empty region at 0x%lx",
......@@ -167,7 +167,7 @@ efi_memmap_walk (efi_freemem_callback_t callback, void *arg)
}
curr.start = PAGE_OFFSET + md->phys_addr;
curr.end = curr.start + (md->num_pages << 12);
curr.end = curr.start + (md->num_pages << EFI_PAGE_SHIFT);
if (!prev_valid) {
prev = curr;
......@@ -250,16 +250,17 @@ efi_map_pal_code (void)
* dedicated ITR for the PAL code.
*/
if ((vaddr & mask) == (KERNEL_START & mask)) {
printk(__FUNCTION__ ": no need to install ITR for PAL code\n");
printk("%s: no need to install ITR for PAL code\n", __FUNCTION__);
continue;
}
if (md->num_pages << 12 > IA64_GRANULE_SIZE)
if (md->num_pages << EFI_PAGE_SHIFT > IA64_GRANULE_SIZE)
panic("Woah! PAL code size bigger than a granule!");
mask = ~((1 << IA64_GRANULE_SHIFT) - 1);
printk("CPU %d: mapping PAL code [0x%lx-0x%lx) into [0x%lx-0x%lx)\n",
smp_processor_id(), md->phys_addr, md->phys_addr + (md->num_pages << 12),
smp_processor_id(), md->phys_addr,
md->phys_addr + (md->num_pages << EFI_PAGE_SHIFT),
vaddr & mask, (vaddr & mask) + IA64_GRANULE_SIZE);
/*
......@@ -375,7 +376,8 @@ efi_init (void)
md = p;
printk("mem%02u: type=%u, attr=0x%lx, range=[0x%016lx-0x%016lx) (%luMB)\n",
i, md->type, md->attribute, md->phys_addr,
md->phys_addr + (md->num_pages<<12) - 1, md->num_pages >> 8);
md->phys_addr + (md->num_pages << EFI_PAGE_SHIFT) - 1,
md->num_pages >> (20 - EFI_PAGE_SHIFT));
}
}
#endif
......@@ -482,8 +484,50 @@ efi_get_iobase (void)
return 0;
}
u32
efi_mem_type (u64 phys_addr)
{
void *efi_map_start, *efi_map_end, *p;
efi_memory_desc_t *md;
u64 efi_desc_size;
efi_map_start = __va(ia64_boot_param->efi_memmap);
efi_map_end = efi_map_start + ia64_boot_param->efi_memmap_size;
efi_desc_size = ia64_boot_param->efi_memdesc_size;
for (p = efi_map_start; p < efi_map_end; p += efi_desc_size) {
md = p;
if ((md->phys_addr <= phys_addr) && (phys_addr <=
(md->phys_addr + (md->num_pages << EFI_PAGE_SHIFT) - 1)))
return md->type;
}
return 0;
}
u64
efi_mem_attributes (u64 phys_addr)
{
void *efi_map_start, *efi_map_end, *p;
efi_memory_desc_t *md;
u64 efi_desc_size;
efi_map_start = __va(ia64_boot_param->efi_memmap);
efi_map_end = efi_map_start + ia64_boot_param->efi_memmap_size;
efi_desc_size = ia64_boot_param->efi_memdesc_size;
for (p = efi_map_start; p < efi_map_end; p += efi_desc_size) {
md = p;
if ((md->phys_addr <= phys_addr) && (phys_addr <=
(md->phys_addr + (md->num_pages << EFI_PAGE_SHIFT) - 1)))
return md->attribute;
}
return 0;
}
static void __exit
efivars_exit(void)
efivars_exit (void)
{
#ifdef CONFIG_PROC_FS
remove_proc_entry(efi_dir->name, NULL);
......
arch/ia64/kernel/entry.S
View file @ 79a5d877
......@@ -36,6 +36,7 @@
#include <asm/kregs.h>
#include <asm/offsets.h>
#include <asm/pgtable.h>
#include <asm/percpu.h>
#include <asm/processor.h>
#include <asm/thread_info.h>
#include <asm/unistd.h>
......@@ -214,62 +215,80 @@ GLOBAL_ENTRY(save_switch_stack)
.save @priunat,r17
mov r17=ar.unat // preserve caller's
.body
adds r3=80,sp
#ifdef CONFIG_ITANIUM
adds r2=16+128,sp
adds r3=16+64,sp
adds r14=SW(R4)+16,sp
;;
st8.spill [r14]=r4,16 // spill r4
lfetch.fault.excl.nt1 [r3],128
mov ar.rsc=0 // put RSE in mode: enforced lazy, little endian, pl 0
adds r2=16+128,sp
;;
lfetch.fault.excl.nt1 [r2],128
lfetch.fault.excl.nt1 [r3],128
adds r14=SW(R4)+16,sp
;;
lfetch.fault.excl [r2]
lfetch.fault.excl [r3]
adds r15=SW(R5)+16,sp
#else
add r2=16+3*128,sp
add r3=16,sp
add r14=SW(R4)+16,sp
;;
st8.spill [r14]=r4,SW(R6)-SW(R4) // spill r4 and prefetch offset 0x1c0
lfetch.fault.excl.nt1 [r3],128 // prefetch offset 0x010
;;
mov r18=ar.fpsr // preserve fpsr
mov r19=ar.rnat
add r2=SW(F2)+16,sp // r2 = &sw->f2
.mem.offset 0,0; st8.spill [r14]=r4,16 // spill r4
.mem.offset 8,0; st8.spill [r15]=r5,16 // spill r5
add r3=SW(F3)+16,sp // r3 = &sw->f3
lfetch.fault.excl.nt1 [r3],128 // prefetch offset 0x090
lfetch.fault.excl.nt1 [r2],128 // prefetch offset 0x190
;;
lfetch.fault.excl.nt1 [r3] // prefetch offset 0x110
lfetch.fault.excl.nt1 [r2] // prefetch offset 0x210
adds r15=SW(R5)+16,sp
#endif
;;
st8.spill [r15]=r5,SW(R7)-SW(R5) // spill r5
mov.m ar.rsc=0 // put RSE in mode: enforced lazy, little endian, pl 0
add r2=SW(F2)+16,sp // r2 = &sw->f2
;;
st8.spill [r14]=r6,SW(B0)-SW(R6) // spill r6
mov.m r18=ar.fpsr // preserve fpsr
add r3=SW(F3)+16,sp // r3 = &sw->f3
;;
stf.spill [r2]=f2,32
stf.spill [r3]=f3,32
mov.m r19=ar.rnat
mov r21=b0
.mem.offset 0,0; st8.spill [r14]=r6,16 // spill r6
.mem.offset 8,0; st8.spill [r15]=r7,16 // spill r7
stf.spill [r3]=f3,32
st8.spill [r15]=r7,SW(B2)-SW(R7) // spill r7
mov r22=b1
;;
// since we're done with the spills, read and save ar.unat:
mov r29=ar.unat // M-unit
mov r20=ar.bspstore // M-unit
mov.m r29=ar.unat
mov.m r20=ar.bspstore
mov r23=b2
stf.spill [r2]=f4,32
stf.spill [r3]=f5,32
mov r24=b3
;;
st8 [r14]=r21,16 // save b0
st8 [r15]=r22,16 // save b1
st8 [r14]=r21,SW(B1)-SW(B0) // save b0
st8 [r15]=r23,SW(B3)-SW(B2) // save b2
mov r25=b4
stf.spill [r2]=f10,32
stf.spill [r3]=f11,32
mov r26=b5
;;
st8 [r14]=r23,16 // save b2
st8 [r15]=r24,16 // save b3
st8 [r14]=r22,SW(B4)-SW(B1) // save b1
st8 [r15]=r24,SW(AR_PFS)-SW(B3) // save b3
mov r21=ar.lc // I-unit
stf.spill [r2]=f12,32
stf.spill [r3]=f13,32
;;
st8 [r14]=r25,16 // save b4
st8 [r15]=r26,16 // save b5
st8 [r14]=r25,SW(B5)-SW(B4) // save b4
st8 [r15]=r16,SW(AR_LC)-SW(AR_PFS) // save ar.pfs
stf.spill [r2]=f14,32
stf.spill [r3]=f15,32
;;
st8 [r14]=r16 // save ar.pfs
st8 [r15]=r21 // save ar.lc
st8 [r14]=r26 // save b5
st8 [r15]=r21 // save ar.lc
stf.spill [r2]=f16,32
stf.spill [r3]=f17,32
;;
......@@ -284,26 +303,26 @@ GLOBAL_ENTRY(save_switch_stack)
;;
stf.spill [r2]=f24,32
stf.spill [r3]=f25,32
add r14=SW(CALLER_UNAT)+16,sp
;;
stf.spill [r2]=f26,32
stf.spill [r3]=f27,32
add r15=SW(AR_FPSR)+16,sp
;;
stf.spill [r2]=f28,32
stf.spill [r3]=f29,32
st8 [r14]=r17 // save caller_unat
st8 [r15]=r18 // save fpsr
mov r21=pr
;;
stf.spill [r2]=f30,(SW(AR_UNAT)-SW(F30))
stf.spill [r3]=f31,(SW(AR_RNAT)-SW(F31))
stf.spill [r2]=f30,SW(AR_UNAT)-SW(F30)
stf.spill [r3]=f31,SW(PR)-SW(F31)
add r14=SW(CALLER_UNAT)+16,sp
;;
st8 [r2]=r29,16 // save ar.unat
st8 [r3]=r19,16 // save ar.rnat
st8 [r2]=r29,SW(AR_RNAT)-SW(AR_UNAT) // save ar.unat
st8 [r14]=r17,SW(AR_FPSR)-SW(CALLER_UNAT) // save caller_unat
mov r21=pr
;;
st8 [r2]=r19,SW(AR_BSPSTORE)-SW(AR_RNAT) // save ar.rnat
st8 [r3]=r21 // save predicate registers
;;
st8 [r2]=r20 // save ar.bspstore
st8 [r3]=r21 // save predicate registers
st8 [r2]=r20 // save ar.bspstore
st8 [r14]=r18 // save fpsr
mov ar.rsc=3 // put RSE back into eager mode, pl 0
br.cond.sptk.many b7
END(save_switch_stack)
......@@ -647,23 +666,38 @@ dont_preserve_current_frame:
/*
* To prevent leaking bits between the kernel and user-space,
* we must clear the stacked registers in the "invalid" partition here.
* Not pretty, but at least it's fast (3.34 registers/cycle).
* Architecturally, this loop could go at 4.67 registers/cycle, but that would
* oversubscribe Itanium.
* Not pretty, but at least it's fast (3.34 registers/cycle on Itanium,
* 5 registers/cycle on McKinley).
*/
# define pRecurse p6
# define pReturn p7
#ifdef CONFIG_ITANIUM
# define Nregs 10
#else
# define Nregs 14
#endif
alloc loc0=ar.pfs,2,Nregs-2,2,0
shr.u loc1=r18,9 // RNaTslots <= dirtySize / (64*8) + 1
sub r17=r17,r18 // r17 = (physStackedSize + 8) - dirtySize
;;
#if 1
.align 32 // see comment below about gas bug...
#endif
mov ar.rsc=r19 // load ar.rsc to be used for "loadrs"
shladd in0=loc1,3,r17
mov in1=0
#if 0
// gas-2.12.90 is unable to generate a stop bit after .align, which is bad,
// because alloc must be at the beginning of an insn-group.
.align 32
#else
nop 0
nop 0
nop 0
#endif
;;
// .align 32 // gas-2.11.90 is unable to generate a stop bit after .align
rse_clear_invalid:
#ifdef CONFIG_ITANIUM
// cycle 0
{ .mii
alloc loc0=ar.pfs,2,Nregs-2,2,0
......@@ -692,9 +726,31 @@ rse_clear_invalid:
mov loc7=0
(pReturn) br.ret.sptk.many b6
}
#else /* !CONFIG_ITANIUM */
alloc loc0=ar.pfs,2,Nregs-2,2,0
cmp.lt pRecurse,p0=Nregs*8,in0 // if more than Nregs regs left to clear, (re)curse
add out0=-Nregs*8,in0
add out1=1,in1 // increment recursion count
mov loc1=0
mov loc2=0
;;
mov loc3=0
mov loc4=0
mov loc9=0
mov loc5=0
mov loc6=0
(pRecurse) br.call.sptk.many b6=rse_clear_invalid
;;
mov loc7=0
mov loc8=0
cmp.ne pReturn,p0=r0,in1 // if recursion count != 0, we need to do a br.ret
mov loc10=0
mov loc11=0
(pReturn) br.ret.sptk.many b6
#endif /* !CONFIG_ITANIUM */
# undef pRecurse
# undef pReturn
;;
alloc r17=ar.pfs,0,0,0,0 // drop current register frame
;;
loadrs
......@@ -1087,7 +1143,11 @@ sys_call_table:
data8 sys_sched_get_priority_min
data8 sys_sched_rr_get_interval
data8 sys_nanosleep
#if defined(CONFIG_NFSD) || defined(CONFIG_NFSD_MODULE)
data8 sys_nfsservctl
#else
data8 sys_ni_syscall
#endif
data8 sys_prctl // 1170
data8 sys_getpagesize
data8 sys_mmap2
......@@ -1147,14 +1207,10 @@ sys_call_table:
data8 sys_removexattr
data8 sys_lremovexattr
data8 sys_fremovexattr
#if 0
data8 sys_tkill
#else
data8 ia64_ni_syscall
#endif
data8 ia64_ni_syscall // 1230
data8 ia64_ni_syscall
data8 ia64_ni_syscall
data8 sys_futex // 1230
data8 sys_sched_setaffinity
data8 sys_sched_getaffinity
data8 ia64_ni_syscall
data8 ia64_ni_syscall
data8 ia64_ni_syscall // 1235
......
arch/ia64/kernel/head.S
View file @ 79a5d877
......@@ -560,137 +560,114 @@ GLOBAL_ENTRY(__ia64_load_fpu)
END(__ia64_load_fpu)
GLOBAL_ENTRY(__ia64_init_fpu)
alloc r2=ar.pfs,0,0,0,0
stf.spill [sp]=f0
mov f32=f0
;;
ldf.fill f33=[sp]
ldf.fill f34=[sp]
mov f35=f0
;;
ldf.fill f36=[sp]
ldf.fill f37=[sp]
mov f38=f0
;;
ldf.fill f39=[sp]
ldf.fill f40=[sp]
mov f41=f0
;;
ldf.fill f42=[sp]
ldf.fill f43=[sp]
mov f44=f0
;;
ldf.fill f45=[sp]
ldf.fill f46=[sp]
mov f47=f0
;;
ldf.fill f48=[sp]
ldf.fill f49=[sp]
mov f50=f0
;;
ldf.fill f51=[sp]
ldf.fill f52=[sp]
mov f53=f0
;;
ldf.fill f54=[sp]
ldf.fill f55=[sp]
mov f56=f0
;;
ldf.fill f57=[sp]
ldf.fill f58=[sp]
mov f59=f0
;;
ldf.fill f60=[sp]
ldf.fill f61=[sp]
mov f62=f0
;;
ldf.fill f63=[sp]
ldf.fill f64=[sp]
mov f65=f0
;;
ldf.fill f66=[sp]
ldf.fill f67=[sp]
mov f68=f0
;;
ldf.fill f69=[sp]
ldf.fill f70=[sp]
mov f71=f0
;;
ldf.fill f72=[sp]
ldf.fill f73=[sp]
mov f74=f0
;;
ldf.fill f75=[sp]
ldf.fill f76=[sp]
mov f77=f0
;;
ldf.fill f78=[sp]
ldf.fill f79=[sp]
mov f80=f0
;;
ldf.fill f81=[sp]
ldf.fill f82=[sp]
mov f83=f0
;;
ldf.fill f84=[sp]
ldf.fill f85=[sp]
mov f86=f0
;;
ldf.fill f87=[sp]
ldf.fill f88=[sp]
mov f89=f0
;;
ldf.fill f90=[sp]
ldf.fill f91=[sp]
mov f92=f0
;;
ldf.fill f93=[sp]
ldf.fill f94=[sp]
mov f95=f0
;;
ldf.fill f96=[sp]
ldf.fill f97=[sp]
mov f98=f0
;;
ldf.fill f99=[sp]
ldf.fill f100=[sp]
mov f101=f0
;;
ldf.fill f102=[sp]
ldf.fill f103=[sp]
mov f104=f0
;;
ldf.fill f105=[sp]
ldf.fill f106=[sp]
mov f107=f0
;;
ldf.fill f108=[sp]
ldf.fill f109=[sp]
mov f110=f0
;;
ldf.fill f111=[sp]
ldf.fill f112=[sp]
mov f113=f0
;;
ldf.fill f114=[sp]
ldf.fill f115=[sp]
mov f116=f0
;;
ldf.fill f117=[sp]
ldf.fill f118=[sp]
mov f119=f0
;;
ldf.fill f120=[sp]
ldf.fill f121=[sp]
mov f122=f0
;;
ldf.fill f123=[sp]
ldf.fill f124=[sp]
mov f125=f0
stf.spill [sp]=f0 // M3
mov f32=f0 // F
nop.b 0
ldfps f33,f34=[sp] // M0
ldfps f35,f36=[sp] // M1
mov f37=f0 // F
;;
ldf.fill f126=[sp]
mov f127=f0
br.ret.sptk.many rp
setf.s f38=r0 // M2
setf.s f39=r0 // M3
mov f40=f0 // F
ldfps f41,f42=[sp] // M0
ldfps f43,f44=[sp] // M1
mov f45=f0 // F
setf.s f46=r0 // M2
setf.s f47=r0 // M3
mov f48=f0 // F
ldfps f49,f50=[sp] // M0
ldfps f51,f52=[sp] // M1
mov f53=f0 // F
setf.s f54=r0 // M2
setf.s f55=r0 // M3
mov f56=f0 // F
ldfps f57,f58=[sp] // M0
ldfps f59,f60=[sp] // M1
mov f61=f0 // F
setf.s f62=r0 // M2
setf.s f63=r0 // M3
mov f64=f0 // F
ldfps f65,f66=[sp] // M0
ldfps f67,f68=[sp] // M1
mov f69=f0 // F
setf.s f70=r0 // M2
setf.s f71=r0 // M3
mov f72=f0 // F
ldfps f73,f74=[sp] // M0
ldfps f75,f76=[sp] // M1
mov f77=f0 // F
setf.s f78=r0 // M2
setf.s f79=r0 // M3
mov f80=f0 // F
ldfps f81,f82=[sp] // M0
ldfps f83,f84=[sp] // M1
mov f85=f0 // F
setf.s f86=r0 // M2
setf.s f87=r0 // M3
mov f88=f0 // F
/*
* When the instructions are cached, it would be faster to initialize
* the remaining registers with simply mov instructions (F-unit).
* This gets the time down to ~29 cycles. However, this would use up
* 33 bundles, whereas continuing with the above pattern yields
* 10 bundles and ~30 cycles.
*/
ldfps f89,f90=[sp] // M0
ldfps f91,f92=[sp] // M1
mov f93=f0 // F
setf.s f94=r0 // M2
setf.s f95=r0 // M3
mov f96=f0 // F
ldfps f97,f98=[sp] // M0
ldfps f99,f100=[sp] // M1
mov f101=f0 // F
setf.s f102=r0 // M2
setf.s f103=r0 // M3
mov f104=f0 // F
ldfps f105,f106=[sp] // M0
ldfps f107,f108=[sp] // M1
mov f109=f0 // F
setf.s f110=r0 // M2
setf.s f111=r0 // M3
mov f112=f0 // F
ldfps f113,f114=[sp] // M0
ldfps f115,f116=[sp] // M1
mov f117=f0 // F
setf.s f118=r0 // M2
setf.s f119=r0 // M3
mov f120=f0 // F
ldfps f121,f122=[sp] // M0
ldfps f123,f124=[sp] // M1
mov f125=f0 // F
setf.s f126=r0 // M2
setf.s f127=r0 // M3
br.ret.sptk.many rp // F
END(__ia64_init_fpu)
/*
......
arch/ia64/kernel/ia64_ksyms.c
View file @ 79a5d877
......@@ -6,7 +6,11 @@
#include <linux/module.h>
#include <linux/string.h>
EXPORT_SYMBOL_NOVERS(memset);
#undef memset
extern void *memset (void *, int, size_t);
EXPORT_SYMBOL_NOVERS(memset); /* gcc generates direct calls to memset()... */
EXPORT_SYMBOL_NOVERS(__memset_generic);
EXPORT_SYMBOL_NOVERS(__bzero);
EXPORT_SYMBOL(memchr);
EXPORT_SYMBOL(memcmp);
EXPORT_SYMBOL_NOVERS(memcpy);
......@@ -67,7 +71,7 @@ EXPORT_SYMBOL(kernel_thread);
EXPORT_SYMBOL(last_cli_ip);
#endif
#include <asm/pgalloc.h>
#include <asm/tlbflush.h>
EXPORT_SYMBOL(flush_tlb_range);
......@@ -147,3 +151,10 @@ EXPORT_SYMBOL(efi);
#include <linux/proc_fs.h>
extern struct proc_dir_entry *efi_dir;
EXPORT_SYMBOL(efi_dir);
#include <asm/machvec.h>
#ifdef CONFIG_IA64_GENERIC
EXPORT_SYMBOL(ia64_mv);
#endif
EXPORT_SYMBOL(machvec_noop);
arch/ia64/kernel/iosapic.c
View file @ 79a5d877
......@@ -22,6 +22,7 @@
* 02/01/07 E. Focht <efocht@ess.nec.de> Redirectable interrupt vectors in
* iosapic_set_affinity(), initializations for
* /proc/irq/#/smp_affinity
* 02/04/02 P. Diefenbaugh Cleaned up ACPI PCI IRQ routing.
*/
/*
* Here is what the interrupt logic between a PCI device and the CPU looks like:
......@@ -56,9 +57,8 @@
#include <linux/smp_lock.h>
#include <linux/string.h>
#include <linux/irq.h>
#include <linux/acpi.h>
#include <asm/acpi-ext.h>
#include <asm/acpikcfg.h>
#include <asm/delay.h>
#include <asm/hw_irq.h>
#include <asm/io.h>
......@@ -92,11 +92,37 @@ static struct iosapic_irq {
unsigned char trigger : 1; /* trigger mode (see iosapic.h) */
} iosapic_irq[IA64_NUM_VECTORS];
static struct iosapic {
char *addr; /* base address of IOSAPIC */
unsigned char pcat_compat; /* 8259 compatibility flag */
unsigned char base_irq; /* first irq assigned to this IOSAPIC */
unsigned short max_pin; /* max input pin supported in this IOSAPIC */
} iosapic_lists[256] __initdata;
static int num_iosapic = 0;
/*
* Find an IOSAPIC associated with an IRQ
*/
static inline int __init
find_iosapic (unsigned int irq)
{
int i;
for (i = 0; i < num_iosapic; i++) {
if ((irq - iosapic_lists[i].base_irq) < iosapic_lists[i].max_pin)
return i;
}
return -1;
}
/*
* Translate IOSAPIC irq number to the corresponding IA-64 interrupt vector. If no
* entry exists, return -1.
*/
int
static int
iosapic_irq_to_vector (int irq)
{
int vector;
......@@ -479,7 +505,7 @@ iosapic_register_platform_irq (u32 int_type, u32 global_vector,
int vector;
switch (int_type) {
case ACPI20_ENTRY_PIS_PMI:
case ACPI_INTERRUPT_PMI:
vector = iosapic_vector;
/*
* since PMI vector is alloc'd by FW(ACPI) not by kernel,
......@@ -488,15 +514,15 @@ iosapic_register_platform_irq (u32 int_type, u32 global_vector,
iosapic_reassign_vector(vector);
delivery = IOSAPIC_PMI;
break;
case ACPI20_ENTRY_PIS_CPEI:
vector = IA64_PCE_VECTOR;
delivery = IOSAPIC_LOWEST_PRIORITY;
break;
case ACPI20_ENTRY_PIS_INIT:
case ACPI_INTERRUPT_INIT:
vector = ia64_alloc_irq();
delivery = IOSAPIC_INIT;
break;
default:
case ACPI_INTERRUPT_CPEI:
vector = IA64_PCE_VECTOR;
delivery = IOSAPIC_LOWEST_PRIORITY;
break;
default:
printk("iosapic_register_platform_irq(): invalid int type\n");
return -1;
}
......@@ -542,31 +568,41 @@ iosapic_register_legacy_irq (unsigned long irq,
void __init
iosapic_init (unsigned long phys_addr, unsigned int base_irq, int pcat_compat)
{
int i, irq, max_pin, vector, pin;
int irq, max_pin, vector, pin;
unsigned int ver;
char *addr;
static int first_time = 1;
if (first_time) {
first_time = 0;
for (vector = 0; vector < IA64_NUM_VECTORS; ++vector)
iosapic_irq[vector].pin = -1; /* mark as unused */
}
if (pcat_compat) {
/*
* Fetch the PCI interrupt routing table:
* Disable the compatibility mode interrupts (8259 style), needs IN/OUT support
* enabled.
*/
acpi_cf_get_pci_vectors(&pci_irq.route, &pci_irq.num_routes);
printk("%s: Disabling PC-AT compatible 8259 interrupts\n", __FUNCTION__);
outb(0xff, 0xA1);
outb(0xff, 0x21);
}
addr = ioremap(phys_addr, 0);
ver = iosapic_version(addr);
max_pin = (ver >> 16) & 0xff;
iosapic_lists[num_iosapic].addr = addr;
iosapic_lists[num_iosapic].pcat_compat = pcat_compat;
iosapic_lists[num_iosapic].base_irq = base_irq;
iosapic_lists[num_iosapic].max_pin = max_pin;
num_iosapic++;
printk("IOSAPIC: version %x.%x, address 0x%lx, IRQs 0x%02x-0x%02x\n",
(ver & 0xf0) >> 4, (ver & 0x0f), phys_addr, base_irq, base_irq + max_pin);
if ((base_irq == 0) && pcat_compat)
if ((base_irq == 0) && pcat_compat) {
/*
* Map the legacy ISA devices into the IOSAPIC data. Some of these may
* get reprogrammed later on with data from the ACPI Interrupt Source
......@@ -590,11 +626,37 @@ iosapic_init (unsigned long phys_addr, unsigned int base_irq, int pcat_compat)
/* program the IOSAPIC routing table: */
set_rte(vector, (ia64_get_lid() >> 16) & 0xffff);
}
}
}
void __init
iosapic_init_pci_irq (void)
{
int i, index, vector, pin;
int base_irq, max_pin, pcat_compat;
unsigned int irq;
char *addr;
if (0 != acpi_get_prt(&pci_irq.route, &pci_irq.num_routes))
return;
for (i = 0; i < pci_irq.num_routes; i++) {
irq = pci_irq.route[i].irq;
if ((irq < (int)base_irq) || (irq > (int)(base_irq + max_pin)))
index = find_iosapic(irq);
if (index < 0) {
printk("PCI: IRQ %u has no IOSAPIC mapping\n", irq);
continue;
}
addr = iosapic_lists[index].addr;
base_irq = iosapic_lists[index].base_irq;
max_pin = iosapic_lists[index].max_pin;
pcat_compat = iosapic_lists[index].pcat_compat;
pin = irq - base_irq;
if ((unsigned) pin > max_pin)
/* the interrupt route is for another controller... */
continue;
......@@ -607,18 +669,13 @@ iosapic_init (unsigned long phys_addr, unsigned int base_irq, int pcat_compat)
vector = ia64_alloc_irq();
}
register_irq(irq, vector, irq - base_irq,
/* IOSAPIC_POL_LOW, IOSAPIC_LEVEL */
IOSAPIC_LOWEST_PRIORITY, 0, 0, base_irq, addr);
register_irq(irq, vector, pin, IOSAPIC_LOWEST_PRIORITY, 0, 0, base_irq, addr);
# ifdef DEBUG_IRQ_ROUTING
#ifdef DEBUG_IRQ_ROUTING
printk("PCI: (B%d,I%d,P%d) -> IOSAPIC irq 0x%02x -> vector 0x%02x\n",
pci_irq.route[i].bus, pci_irq.route[i].pci_id>>16, pci_irq.route[i].pin,
iosapic_irq[vector].base_irq + iosapic_irq[vector].pin, vector);
# endif
/* program the IOSAPIC routing table: */
set_rte(vector, (ia64_get_lid() >> 16) & 0xffff);
#endif
}
}
......@@ -631,6 +688,11 @@ iosapic_pci_fixup (int phase)
struct hw_interrupt_type *irq_type;
irq_desc_t *idesc;
if (phase == 0) {
iosapic_init_pci_irq();
return;
}
if (phase != 1)
return;
......@@ -670,10 +732,10 @@ iosapic_pci_fixup (int phase)
irq_type = &irq_type_iosapic_level;
idesc = irq_desc(vector);
if (idesc->handler != irq_type){
if (idesc->handler != irq_type) {
if (idesc->handler != &no_irq_type)
printk("iosapic_pci_fixup: changing vector 0x%02x from "
"%s to %s\n", vector,
printk("iosapic_pci_fixup: changing vector 0x%02x "
"from %s to %s\n", vector,
idesc->handler->typename,
irq_type->typename);
idesc->handler = irq_type;
......
arch/ia64/kernel/irq.c
View file @ 79a5d877
......@@ -68,6 +68,23 @@
irq_desc_t _irq_desc[NR_IRQS] __cacheline_aligned =
{ [0 ... NR_IRQS-1] = { IRQ_DISABLED, &no_irq_type, NULL, 0, SPIN_LOCK_UNLOCKED}};
#ifdef CONFIG_IA64_GENERIC
struct irq_desc * __ia64_irq_desc (unsigned int irq)
{
return _irq_desc + irq;
}
ia64_vector __ia64_irq_to_vector (unsigned int irq)
{
return (ia64_vector) irq;
}
unsigned int __ia64_local_vector_to_irq (ia64_vector vec)
{
return (unsigned int) vec;
}
#endif
static void register_irq_proc (unsigned int irq);
/*
......
arch/ia64/kernel/ivt.S
View file @ 79a5d877
......@@ -127,7 +127,7 @@ ENTRY(vhpt_miss)
;;
(p7) dep r17=r17,r19,(PAGE_SHIFT-3),3 // put region number bits in place
srlz.d // ensure "rsm psr.dt" has taken effect
(p6) movl r19=__pa(SWAPPER_PGD_ADDR) // region 5 is rooted at swapper_pg_dir
(p6) movl r19=__pa(swapper_pg_dir) // region 5 is rooted at swapper_pg_dir
(p6) shr.u r21=r21,PGDIR_SHIFT+PAGE_SHIFT
(p7) shr.u r21=r21,PGDIR_SHIFT+PAGE_SHIFT-3
;;
......@@ -413,7 +413,7 @@ ENTRY(nested_dtlb_miss)
;;
(p7) dep r17=r17,r19,(PAGE_SHIFT-3),3 // put region number bits in place
srlz.d
(p6) movl r19=__pa(SWAPPER_PGD_ADDR) // region 5 is rooted at swapper_pg_dir
(p6) movl r19=__pa(swapper_pg_dir) // region 5 is rooted at swapper_pg_dir
(p6) shr.u r21=r21,PGDIR_SHIFT+PAGE_SHIFT
(p7) shr.u r21=r21,PGDIR_SHIFT+PAGE_SHIFT-3
;;
......
arch/ia64/kernel/mca.c
View file @ 79a5d877
......@@ -41,6 +41,7 @@
#include <linux/irq.h>
#include <linux/smp_lock.h>
#include <linux/bootmem.h>
#include <linux/acpi.h>
#include <asm/machvec.h>
#include <asm/page.h>
......@@ -51,7 +52,6 @@
#include <asm/irq.h>
#include <asm/hw_irq.h>
#include <asm/acpi-ext.h>
#undef MCA_PRT_XTRA_DATA
......@@ -353,7 +353,9 @@ static int
verify_guid (efi_guid_t *test, efi_guid_t *target)
{
int rc;
#ifdef IA64_MCA_DEBUG_INFO
char out[40];
#endif
if ((rc = efi_guidcmp(*test, *target))) {
IA64_MCA_DEBUG(KERN_DEBUG
......@@ -497,7 +499,7 @@ ia64_mca_init(void)
{
irq_desc_t *desc;
unsigned int irq;
int cpev = acpi_request_vector(ACPI20_ENTRY_PIS_CPEI);
int cpev = acpi_request_vector(ACPI_INTERRUPT_CPEI);
if (cpev >= 0) {
for (irq = 0; irq < NR_IRQS; ++irq)
......
arch/ia64/kernel/minstate.h
View file @ 79a5d877
#include <linux/config.h>
#include <asm/cache.h>
#include "entry.h"
/*
......@@ -28,18 +30,19 @@
* on interrupts.
*/
#define MINSTATE_START_SAVE_MIN_VIRT \
dep r1=-1,r1,61,3; /* r1 = current (virtual) */ \
(pUser) mov ar.rsc=0; /* set enforced lazy mode, pl 0, little-endian, loadrs=0 */ \
dep r1=-1,r1,61,3; /* r1 = current (virtual) */ \
;; \
(pUser) mov.m rARRNAT=ar.rnat; \
(pUser) addl rKRBS=IA64_RBS_OFFSET,r1; /* compute base of RBS */ \
(pUser) mov rARRNAT=ar.rnat; \
(pKern) mov r1=sp; /* get sp */ \
;; \
(pUser) addl r1=IA64_STK_OFFSET-IA64_PT_REGS_SIZE,r1; /* compute base of memory stack */ \
(pUser) lfetch.fault.excl.nt1 [rKRBS]; \
(pUser) mov rARBSPSTORE=ar.bspstore; /* save ar.bspstore */ \
(pUser) addl r1=IA64_STK_OFFSET-IA64_PT_REGS_SIZE,r1; /* compute base of memory stack */ \
;; \
(pKern) addl r1=-IA64_PT_REGS_SIZE,r1; /* if in kernel mode, use sp (r12) */ \
(pUser) mov ar.bspstore=rKRBS; /* switch to kernel RBS */ \
(pKern) addl r1=-IA64_PT_REGS_SIZE,r1; /* if in kernel mode, use sp (r12) */ \
;; \
(pUser) mov r18=ar.bsp; \
(pUser) mov ar.rsc=0x3; /* set eager mode, pl 0, little-endian, loadrs=0 */ \
......@@ -125,52 +128,58 @@
;; \
SAVE_IFS; \
MINSTATE_START_SAVE_MIN \
add r17=L1_CACHE_BYTES,r1 /* really: biggest cache-line size */ \
;; \
mov r16=r1; /* initialize first base pointer */ \
adds r17=8,r1; /* initialize second base pointer */ \
st8 [r1]=rCRIPSR; /* save cr.ipsr */ \
lfetch.fault.excl.nt1 [r17],L1_CACHE_BYTES; \
add r16=16,r1; /* initialize first base pointer */ \
;; \
st8 [r16]=rCRIPSR,16; /* save cr.ipsr */ \
st8 [r17]=rCRIIP,16; /* save cr.iip */ \
lfetch.fault.excl.nt1 [r17],L1_CACHE_BYTES; \
;; \
lfetch.fault.excl.nt1 [r17]; \
adds r17=8,r1; /* initialize second base pointer */ \
(pKern) mov r18=r0; /* make sure r18 isn't NaT */ \
;; \
st8 [r17]=rCRIIP,16; /* save cr.iip */ \
st8 [r16]=rCRIFS,16; /* save cr.ifs */ \
st8 [r17]=rARUNAT,16; /* save ar.unat */ \
(pUser) sub r18=r18,rKRBS; /* r18=RSE.ndirty*8 */ \
;; \
st8 [r17]=rARUNAT,16; /* save ar.unat */ \
st8 [r16]=rARPFS,16; /* save ar.pfs */ \
shl r18=r18,16; /* compute ar.rsc to be used for "loadrs" */ \
;; \
st8 [r17]=rARRSC,16; /* save ar.rsc */ \
tbit.nz p15,p0=rCRIPSR,IA64_PSR_I_BIT \
;; /* avoid RAW on r16 & r17 */ \
(pKern) adds r16=16,r16; /* skip over ar_rnat field */ \
(pKern) adds r17=16,r17; /* skip over ar_bspstore field */ \
(pUser) st8 [r16]=rARRNAT,16; /* save ar.rnat */ \
(pKern) adds r16=16,r16; /* skip over ar_rnat field */ \
;; /* avoid RAW on r16 & r17 */ \
(pUser) st8 [r17]=rARBSPSTORE,16; /* save ar.bspstore */ \
;; \
st8 [r16]=rARPR,16; /* save predicates */ \
st8 [r17]=rB6,16; /* save b6 */ \
shl r18=r18,16; /* compute ar.rsc to be used for "loadrs" */ \
(pKern) adds r17=16,r17; /* skip over ar_bspstore field */ \
;; \
st8 [r17]=rB6,16; /* save b6 */ \
st8 [r16]=r18,16; /* save ar.rsc value for "loadrs" */ \
st8.spill [r17]=rR1,16; /* save original r1 */ \
tbit.nz p15,p0=rCRIPSR,IA64_PSR_I_BIT \
;; \
.mem.offset 8,0; st8.spill [r17]=rR1,16; /* save original r1 */ \
.mem.offset 0,0; st8.spill [r16]=r2,16; \
;; \
.mem.offset 8,0; st8.spill [r17]=r3,16; \
.mem.offset 0,0; st8.spill [r16]=r12,16; \
adds r2=IA64_PT_REGS_R16_OFFSET,r1; \
;; \
.mem.offset 0,0; st8.spill [r16]=r12,16; \
.mem.offset 8,0; st8.spill [r17]=r13,16; \
.mem.offset 8,0; st8.spill [r17]=r13,16; \
.mem.offset 0,0; st8.spill [r16]=r14,16; \
cmp.eq pNonSys,pSys=r0,r0 /* initialize pSys=0, pNonSys=1 */ \
;; \
.mem.offset 0,0; st8.spill [r16]=r14,16; \
.mem.offset 8,0; st8.spill [r17]=r15,16; \
.mem.offset 8,0; st8.spill [r17]=r15,16; \
.mem.offset 0,0; st8.spill [r16]=r8,16; \
dep r14=-1,r0,61,3; \
;; \
.mem.offset 0,0; st8.spill [r16]=r8,16; \
.mem.offset 8,0; st8.spill [r17]=r9,16; \
.mem.offset 8,0; st8.spill [r17]=r9,16; \
.mem.offset 0,0; st8.spill [r16]=r10,16; \
adds r12=-16,r1; /* switch to kernel memory stack (with 16 bytes of scratch) */ \
;; \
.mem.offset 0,0; st8.spill [r16]=r10,16; \
.mem.offset 8,0; st8.spill [r17]=r11,16; \
.mem.offset 8,0; st8.spill [r17]=r11,16; \
mov r13=IA64_KR(CURRENT); /* establish `current' */ \
;; \
EXTRA; \
......@@ -190,10 +199,12 @@
*/
#define SAVE_REST \
.mem.offset 0,0; st8.spill [r2]=r16,16; \
.mem.offset 8,0; st8.spill [r3]=r17,16; \
;; \
.mem.offset 8,0; st8.spill [r3]=r17,16; \
.mem.offset 0,0; st8.spill [r2]=r18,16; \
;; \
.mem.offset 8,0; st8.spill [r3]=r19,16; \
.mem.offset 0,0; st8.spill [r2]=r20,16; \
;; \
mov r16=ar.ccv; /* M-unit */ \
movl r18=FPSR_DEFAULT /* L-unit */ \
......@@ -201,30 +212,29 @@
mov r17=ar.fpsr; /* M-unit */ \
mov ar.fpsr=r18; /* M-unit */ \
;; \
.mem.offset 0,0; st8.spill [r2]=r20,16; \
.mem.offset 8,0; st8.spill [r3]=r21,16; \
.mem.offset 0,0; st8.spill [r2]=r22,16; \
mov r18=b0; \
;; \
.mem.offset 0,0; st8.spill [r2]=r22,16; \
.mem.offset 8,0; st8.spill [r3]=r23,16; \
.mem.offset 0,0; st8.spill [r2]=r24,16; \
mov r19=b7; \
;; \
.mem.offset 0,0; st8.spill [r2]=r24,16; \
.mem.offset 8,0; st8.spill [r3]=r25,16; \
;; \
.mem.offset 0,0; st8.spill [r2]=r26,16; \
.mem.offset 8,0; st8.spill [r3]=r27,16; \
;; \
.mem.offset 8,0; st8.spill [r3]=r27,16; \
.mem.offset 0,0; st8.spill [r2]=r28,16; \
.mem.offset 8,0; st8.spill [r3]=r29,16; \
;; \
.mem.offset 8,0; st8.spill [r3]=r29,16; \
.mem.offset 0,0; st8.spill [r2]=r30,16; \
.mem.offset 8,0; st8.spill [r3]=r31,16; \
;; \
.mem.offset 8,0; st8.spill [r3]=r31,16; \
st8 [r2]=r16,16; /* ar.ccv */ \
st8 [r3]=r17,16; /* ar.fpsr */ \
;; \
st8 [r3]=r17,16; /* ar.fpsr */ \
st8 [r2]=r18,16; /* b0 */ \
;; \
st8 [r3]=r19,16+8; /* b7 */ \
;; \
stf.spill [r2]=f6,32; \
......
arch/ia64/kernel/pci.c
View file @ 79a5d877
......@@ -42,101 +42,183 @@
extern void ia64_mca_check_errors( void );
#endif
struct pci_fixup pcibios_fixups[1];
struct pci_ops *pci_root_ops;
int (*pci_config_read)(int seg, int bus, int dev, int fn, int reg, int len, u32 *value);
int (*pci_config_write)(int seg, int bus, int dev, int fn, int reg, int len, u32 value);
/*
* This interrupt-safe spinlock protects all accesses to PCI
* configuration space.
* Low-level SAL-based PCI configuration access functions. Note that SAL
* calls are already serialized (via sal_lock), so we don't need another
* synchronization mechanism here. Not using segment number (yet).
*/
static spinlock_t pci_lock = SPIN_LOCK_UNLOCKED;
struct pci_fixup pcibios_fixups[] = {
{ 0 }
};
#define PCI_SAL_ADDRESS(bus, dev, fn, reg) \
((u64)(bus << 16) | (u64)(dev << 11) | (u64)(fn << 8) | (u64)(reg))
/* Macro to build a PCI configuration address to be passed as a parameter to SAL. */
static int
pci_sal_read (int seg, int bus, int dev, int fn, int reg, int len, u32 *value)
{
int result = 0;
u64 data = 0;
#define PCI_CONFIG_ADDRESS(dev, where) \
(((u64) dev->bus->number << 16) | ((u64) (dev->devfn & 0xff) << 8) | (where & 0xff))
if (!value || (bus > 255) || (dev > 31) || (fn > 7) || (reg > 255))
return -EINVAL;
result = ia64_sal_pci_config_read(PCI_SAL_ADDRESS(bus, dev, fn, reg), len, &data);
*value = (u32) data;
return result;
}
static int
pci_conf_read_config_byte(struct pci_dev *dev, int where, u8 *value)
pci_sal_write (int seg, int bus, int dev, int fn, int reg, int len, u32 value)
{
s64 status;
u64 lval;
if ((bus > 255) || (dev > 31) || (fn > 7) || (reg > 255))
return -EINVAL;
status = ia64_sal_pci_config_read(PCI_CONFIG_ADDRESS(dev, where), 1, &lval);
*value = lval;
return status;
return ia64_sal_pci_config_write(PCI_SAL_ADDRESS(bus, dev, fn, reg), len, value);
}
static int
pci_conf_read_config_word(struct pci_dev *dev, int where, u16 *value)
pci_sal_read_config_byte (struct pci_dev *dev, int where, u8 *value)
{
s64 status;
u64 lval;
int result = 0;
u32 data = 0;
if (!value)
return -EINVAL;
status = ia64_sal_pci_config_read(PCI_CONFIG_ADDRESS(dev, where), 2, &lval);
*value = lval;
return status;
result = pci_sal_read(0, dev->bus->number, PCI_SLOT(dev->devfn),
PCI_FUNC(dev->devfn), where, 1, &data);
*value = (u8) data;
return result;
}
static int
pci_conf_read_config_dword(struct pci_dev *dev, int where, u32 *value)
pci_sal_read_config_word (struct pci_dev *dev, int where, u16 *value)
{
s64 status;
u64 lval;
int result = 0;
u32 data = 0;
if (!value)
return -EINVAL;
result = pci_sal_read(0, dev->bus->number, PCI_SLOT(dev->devfn),
PCI_FUNC(dev->devfn), where, 2, &data);
*value = (u16) data;
status = ia64_sal_pci_config_read(PCI_CONFIG_ADDRESS(dev, where), 4, &lval);
*value = lval;
return status;
return result;
}
static int
pci_conf_write_config_byte (struct pci_dev *dev, int where, u8 value)
pci_sal_read_config_dword (struct pci_dev *dev, int where, u32 *value)
{
return ia64_sal_pci_config_write(PCI_CONFIG_ADDRESS(dev, where), 1, value);
if (!value)
return -EINVAL;
return pci_sal_read(0, dev->bus->number, PCI_SLOT(dev->devfn),
PCI_FUNC(dev->devfn), where, 4, value);
}
static int
pci_conf_write_config_word (struct pci_dev *dev, int where, u16 value)
pci_sal_write_config_byte (struct pci_dev *dev, int where, u8 value)
{
return ia64_sal_pci_config_write(PCI_CONFIG_ADDRESS(dev, where), 2, value);
return pci_sal_write(0, dev->bus->number, PCI_SLOT(dev->devfn),
PCI_FUNC(dev->devfn), where, 1, value);
}
static int
pci_conf_write_config_dword (struct pci_dev *dev, int where, u32 value)
pci_sal_write_config_word (struct pci_dev *dev, int where, u16 value)
{
return ia64_sal_pci_config_write(PCI_CONFIG_ADDRESS(dev, where), 4, value);
return pci_sal_write(0, dev->bus->number, PCI_SLOT(dev->devfn),
PCI_FUNC(dev->devfn), where, 2, value);
}
struct pci_ops pci_conf = {
pci_conf_read_config_byte,
pci_conf_read_config_word,
pci_conf_read_config_dword,
pci_conf_write_config_byte,
pci_conf_write_config_word,
pci_conf_write_config_dword
static int
pci_sal_write_config_dword (struct pci_dev *dev, int where, u32 value)
{
return pci_sal_write(0, dev->bus->number, PCI_SLOT(dev->devfn),
PCI_FUNC(dev->devfn), where, 4, value);
}
struct pci_ops pci_sal_ops = {
pci_sal_read_config_byte,
pci_sal_read_config_word,
pci_sal_read_config_dword,
pci_sal_write_config_byte,
pci_sal_write_config_word,
pci_sal_write_config_dword
};
/*
* Initialization. Uses the SAL interface
*/
struct pci_bus *
pcibios_scan_root(int seg, int bus)
{
struct list_head *list = NULL;
struct pci_bus *pci_bus = NULL;
list_for_each(list, &pci_root_buses) {
pci_bus = pci_bus_b(list);
if (pci_bus->number == bus) {
/* Already scanned */
printk("PCI: Bus (%02x:%02x) already probed\n", seg, bus);
return pci_bus;
}
}
printk("PCI: Probing PCI hardware on bus (%02x:%02x)\n", seg, bus);
return pci_scan_bus(bus, pci_root_ops, NULL);
}
void __init
pcibios_config_init (void)
{
if (pci_root_ops)
return;
printk("PCI: Using SAL to access configuration space\n");
pci_root_ops = &pci_sal_ops;
pci_config_read = pci_sal_read;
pci_config_write = pci_sal_write;
return;
}
void __init
pcibios_init (void)
{
# define PCI_BUSES_TO_SCAN 255
int i;
int i = 0;
#ifdef CONFIG_IA64_MCA
ia64_mca_check_errors(); /* For post-failure MCA error logging */
#endif
platform_pci_fixup(0); /* phase 0 initialization (before PCI bus has been scanned) */
pcibios_config_init();
platform_pci_fixup(0); /* phase 0 fixups (before buses scanned) */
printk("PCI: Probing PCI hardware\n");
for (i = 0; i < PCI_BUSES_TO_SCAN; i++)
pci_scan_bus(i, &pci_conf, NULL);
pci_scan_bus(i, pci_root_ops, NULL);
platform_pci_fixup(1); /* phase 1 fixups (after buses scanned) */
platform_pci_fixup(1); /* phase 1 initialization (after PCI bus has been scanned) */
return;
}
......@@ -186,7 +268,12 @@ pcibios_fixup_pbus_ranges (struct pci_bus * bus, struct pbus_set_ranges_data * r
int
pcibios_enable_device (struct pci_dev *dev)
{
if (!dev)
return -EINVAL;
/* Not needed, since we enable all devices at startup. */
printk(KERN_INFO "PCI: Found IRQ %d for device %s\n", dev->irq, dev->slot_name);
return 0;
}
......@@ -233,8 +320,7 @@ pci_mmap_page_range (struct pci_dev *dev, struct vm_area_struct *vma,
vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot);
if (remap_page_range(vma, vma->vm_start, vma->vm_pgoff << PAGE_SHIFT,
vma->vm_end - vma->vm_start,
vma->vm_page_prot))
vma->vm_end - vma->vm_start, vma->vm_page_prot))
return -EAGAIN;
return 0;
......
arch/ia64/kernel/process.c
View file @ 79a5d877
......@@ -24,7 +24,7 @@
#include <asm/efi.h>
#include <asm/elf.h>
#include <asm/perfmon.h>
#include <asm/pgtable.h>
#include <asm/pgalloc.h>
#include <asm/processor.h>
#include <asm/sal.h>
#include <asm/uaccess.h>
......@@ -145,7 +145,7 @@ do_notify_resume_user (sigset_t *oldset, struct sigscratch *scr, long in_syscall
/*
* We use this if we don't have any better idle routine..
*/
static void
void
default_idle (void)
{
/* may want to do PAL_LIGHT_HALT here... */
......@@ -660,7 +660,7 @@ dup_task_struct(struct task_struct *orig)
{
struct task_struct *tsk;
tsk = __get_free_pages(GFP_KERNEL, KERNEL_STACK_SIZE_ORDER);
tsk = (void *) __get_free_pages(GFP_KERNEL, KERNEL_STACK_SIZE_ORDER);
if (!tsk)
return NULL;
......
arch/ia64/kernel/semaphore.c
View file @ 79a5d877
/*
* IA-64 semaphore implementation (derived from x86 version).
*
* Copyright (C) 1999-2000 Hewlett-Packard Co
* Copyright (C) 1999-2000 David Mosberger-Tang <davidm@hpl.hp.com>
* Copyright (C) 1999-2000, 2002 Hewlett-Packard Co
* David Mosberger-Tang <davidm@hpl.hp.com>
*/
/*
......@@ -25,6 +25,7 @@
*/
#include <linux/sched.h>
#include <asm/errno.h>
#include <asm/semaphore.h>
/*
......
arch/ia64/kernel/setup.c
View file @ 79a5d877
......@@ -19,6 +19,7 @@
#include <linux/config.h>
#include <linux/init.h>
#include <linux/acpi.h>
#include <linux/bootmem.h>
#include <linux/console.h>
#include <linux/delay.h>
......@@ -30,7 +31,6 @@
#include <linux/threads.h>
#include <linux/tty.h>
#include <asm/acpi-ext.h>
#include <asm/ia32.h>
#include <asm/page.h>
#include <asm/machvec.h>
......@@ -54,7 +54,10 @@
extern char _end;
#ifdef CONFIG_SMP
unsigned long __per_cpu_offset[NR_CPUS];
#endif
struct cpuinfo_ia64 cpu_info __per_cpu_data;
unsigned long ia64_phys_stacked_size_p8;
......@@ -64,6 +67,8 @@ struct screen_info screen_info;
unsigned long ia64_iobase; /* virtual address for I/O accesses */
unsigned char aux_device_present = 0xaa; /* XXX remove this when legacy I/O is gone */
#define COMMAND_LINE_SIZE 512
char saved_command_line[COMMAND_LINE_SIZE]; /* used in proc filesystem */
......@@ -282,6 +287,7 @@ void __init
setup_arch (char **cmdline_p)
{
extern unsigned long ia64_iobase;
unsigned long phys_iobase;
unw_init();
......@@ -314,24 +320,23 @@ setup_arch (char **cmdline_p)
#endif
/*
* Set `iobase' to the appropriate address in region 6
* (uncached access range)
* Set `iobase' to the appropriate address in region 6 (uncached access range).
*
* The EFI memory map is the "prefered" location to get the I/O port
* space base, rather the relying on AR.KR0. This should become more
* clear in future SAL specs. We'll fall back to getting it out of
* AR.KR0 if no appropriate entry is found in the memory map.
* The EFI memory map is the "preferred" location to get the I/O port space base,
* rather the relying on AR.KR0. This should become more clear in future SAL
* specs. We'll fall back to getting it out of AR.KR0 if no appropriate entry is
* found in the memory map.
*/
ia64_iobase = efi_get_iobase();
if (ia64_iobase)
phys_iobase = efi_get_iobase();
if (phys_iobase)
/* set AR.KR0 since this is all we use it for anyway */
ia64_set_kr(IA64_KR_IO_BASE, ia64_iobase);
ia64_set_kr(IA64_KR_IO_BASE, phys_iobase);
else {
ia64_iobase = ia64_get_kr(IA64_KR_IO_BASE);
phys_iobase = ia64_get_kr(IA64_KR_IO_BASE);
printk("No I/O port range found in EFI memory map, falling back to AR.KR0\n");
printk("I/O port base = 0x%lx\n", ia64_iobase);
printk("I/O port base = 0x%lx\n", phys_iobase);
}
ia64_iobase = __IA64_UNCACHED_OFFSET | (ia64_iobase & ~PAGE_OFFSET);
ia64_iobase = (unsigned long) ioremap(phys_iobase, 0);
#ifdef CONFIG_SMP
cpu_physical_id(0) = hard_smp_processor_id();
......@@ -339,20 +344,23 @@ setup_arch (char **cmdline_p)
cpu_init(); /* initialize the bootstrap CPU */
if (efi.acpi20) {
/* Parse the ACPI 2.0 tables */
acpi20_parse(efi.acpi20);
} else if (efi.acpi) {
/* Parse the ACPI tables */
acpi_parse(efi.acpi);
}
#ifdef CONFIG_ACPI_BOOT
acpi_boot_init(*cmdline_p);
#endif
#ifdef CONFIG_VT
# if defined(CONFIG_VGA_CONSOLE)
conswitchp = &vga_con;
# elif defined(CONFIG_DUMMY_CONSOLE)
# if defined(CONFIG_DUMMY_CONSOLE)
conswitchp = &dummy_con;
# endif
# if defined(CONFIG_VGA_CONSOLE)
/*
* Non-legacy systems may route legacy VGA MMIO range to system
* memory. vga_con probes the MMIO hole, so memory looks like
* a VGA device to it. The EFI memory map can tell us if it's
* memory so we can avoid this problem.
*/
if (efi_mem_type(0xA0000) != EFI_CONVENTIONAL_MEMORY)
conswitchp = &vga_con;
# endif
#endif
#ifdef CONFIG_IA64_MCA
......@@ -522,20 +530,25 @@ setup_per_cpu_areas (void)
void
cpu_init (void)
{
extern char __per_cpu_start[], __phys_per_cpu_start[], __per_cpu_end[];
extern char __per_cpu_start[], __phys_per_cpu_start[];
extern void __init ia64_mmu_init (void *);
unsigned long num_phys_stacked;
pal_vm_info_2_u_t vmi;
unsigned int max_ctx;
struct cpuinfo_ia64 *my_cpu_info;
void *my_cpu_data;
#ifdef CONFIG_SMP
extern char __per_cpu_end[];
int cpu = smp_processor_id();
my_cpu_data = alloc_bootmem_pages(__per_cpu_end - __per_cpu_start);
memcpy(my_cpu_data, __phys_per_cpu_start, __per_cpu_end - __per_cpu_start);
__per_cpu_offset[cpu] = (char *) my_cpu_data - __per_cpu_start;
my_cpu_info = my_cpu_data + ((char *) &cpu_info - __per_cpu_start);
#else
my_cpu_data = __phys_per_cpu_start;
#endif
my_cpu_info = my_cpu_data + ((char *) &cpu_info - __per_cpu_start);
/*
......
arch/ia64/kernel/signal.c
View file @ 79a5d877
......@@ -530,8 +530,8 @@ ia64_do_signal (sigset_t *oldset, struct sigscratch *scr, long in_syscall)
info.si_signo = signr;
info.si_errno = 0;
info.si_code = SI_USER;
info.si_pid = current->p_pptr->pid;
info.si_uid = current->p_pptr->uid;
info.si_pid = current->parent->pid;
info.si_uid = current->parent->uid;
}
/* If the (new) signal is now blocked, requeue it. */
......@@ -570,7 +570,7 @@ ia64_do_signal (sigset_t *oldset, struct sigscratch *scr, long in_syscall)
case SIGSTOP:
current->state = TASK_STOPPED;
current->exit_code = signr;
sig = current->p_pptr->sig;
sig = current->parent->sig;
if (sig && !(sig->action[SIGCHLD-1].sa.sa_flags & SA_NOCLDSTOP))
notify_parent(current, SIGCHLD);
schedule();
......
arch/ia64/kernel/smp.c
View file @ 79a5d877
......@@ -48,6 +48,7 @@
#include <asm/ptrace.h>
#include <asm/sal.h>
#include <asm/system.h>
#include <asm/tlbflush.h>
#include <asm/unistd.h>
#include <asm/mca.h>
......@@ -236,7 +237,7 @@ smp_call_function_single (int cpuid, void (*func) (void *info), void *info, int
int cpus = 1;
if (cpuid == smp_processor_id()) {
printk(__FUNCTION__" trying to call self\n");
printk("%s: trying to call self\n", __FUNCTION__);
return -EBUSY;
}
......
arch/ia64/kernel/smpboot.c
View file @ 79a5d877
......@@ -68,6 +68,7 @@ static volatile unsigned long go[SLAVE + 1];
extern void __init calibrate_delay(void);
extern void start_ap(void);
extern unsigned long ia64_iobase;
int cpucount;
task_t *task_for_booting_cpu;
......@@ -345,6 +346,11 @@ smp_callin (void)
*/
ia64_init_itm();
/*
* Set I/O port base per CPU
*/
ia64_set_kr(IA64_KR_IO_BASE, __pa(ia64_iobase));
#ifdef CONFIG_IA64_MCA
ia64_mca_cmc_vector_setup(); /* Setup vector on AP & enable */
ia64_mca_check_errors(); /* For post-failure MCA error logging */
......
arch/ia64/kernel/sys_ia64.c
View file @ 79a5d877
......@@ -47,7 +47,7 @@ arch_get_unmapped_area (struct file *filp, unsigned long addr, unsigned long len
/* At this point: (!vmm || addr < vmm->vm_end). */
if (TASK_SIZE - len < addr)
return -ENOMEM;
if (rgn_offset(addr) + len > RGN_MAP_LIMIT) /* no risk of overflow here... */
if (REGION_OFFSET(addr) + len > RGN_MAP_LIMIT) /* no risk of overflow here... */
return -ENOMEM;
if (!vmm || addr + len <= vmm->vm_start)
return addr;
......@@ -126,7 +126,7 @@ ia64_brk (unsigned long brk, long arg1, long arg2, long arg3,
}
/* Check against unimplemented/unmapped addresses: */
if ((newbrk - oldbrk) > RGN_MAP_LIMIT || rgn_offset(newbrk) > RGN_MAP_LIMIT)
if ((newbrk - oldbrk) > RGN_MAP_LIMIT || REGION_OFFSET(newbrk) > RGN_MAP_LIMIT)
goto out;
/* Check against rlimit.. */
......@@ -206,7 +206,7 @@ do_mmap2 (unsigned long addr, unsigned long len, int prot, int flags, int fd, un
* or across a region boundary. Note: RGN_MAP_LIMIT is equal to 2^n-PAGE_SIZE
* (for some integer n <= 61) and len > 0.
*/
roff = rgn_offset(addr);
roff = REGION_OFFSET(addr);
if ((len > RGN_MAP_LIMIT) || (roff > (RGN_MAP_LIMIT - len))) {
addr = -EINVAL;
goto out;
......
arch/ia64/kernel/traps.c
View file @ 79a5d877
......@@ -214,7 +214,8 @@ ia64_ni_syscall (unsigned long arg0, unsigned long arg1, unsigned long arg2, uns
{
struct pt_regs *regs = (struct pt_regs *) &stack;
printk("<sc%ld(%lx,%lx,%lx,%lx)>\n", regs->r15, arg0, arg1, arg2, arg3);
printk("%s(%d): <sc%ld(%lx,%lx,%lx,%lx)>\n", current->comm, current->pid,
regs->r15, arg0, arg1, arg2, arg3);
return -ENOSYS;
}
......
arch/ia64/kernel/unwind_i.h
View file @ 79a5d877
......@@ -103,7 +103,7 @@ struct unw_state_record {
unsigned int in_body : 1; /* are we inside a body (as opposed to a prologue)? */
unsigned long flags; /* see UNW_FLAG_* in unwind.h */
u8 *imask; /* imask of of spill_mask record or NULL */
u8 *imask; /* imask of spill_mask record or NULL */
unsigned long pr_val; /* predicate values */
unsigned long pr_mask; /* predicate mask */
long spill_offset; /* psp-relative offset for spill base */
......
arch/ia64/lib/Makefile
View file @ 79a5d877
......@@ -16,6 +16,9 @@ obj-y := __divsi3.o __udivsi3.o __modsi3.o __umodsi3.o \
flush.o io.o do_csum.o \
memcpy.o memset.o strlen.o swiotlb.o
obj-$(CONFIG_ITANIUM) += copy_page.o
obj-$(CONFIG_MCKINLEY) += copy_page_mck.o
IGNORE_FLAGS_OBJS = __divsi3.o __udivsi3.o __modsi3.o __umodsi3.o \
__divdi3.o __udivdi3.o __moddi3.o __umoddi3.o
......
arch/ia64/lib/copy_page_mck.S 0 → 100644
View file @ 79a5d877
/*
* McKinley-optimized version of copy_page().
*
* Copyright (C) 2002 Hewlett-Packard Co
* David Mosberger <davidm@hpl.hp.com>
*
* Inputs:
* in0: address of target page
* in1: address of source page
* Output:
* no return value
*
* General idea:
* - use regular loads and stores to prefetch data to avoid consuming M-slot just for
* lfetches => good for in-cache performance
* - avoid l2 bank-conflicts by not storing into the same 16-byte bank within a single
* cycle
*
* Principle of operation:
* First, note that L1 has a line-size of 64 bytes and L2 a line-size of 128 bytes.
* To avoid secondary misses in L2, we prefetch both source and destination with a line-size
* of 128 bytes. When both of these lines are in the L2 and the first half of the
* source line is in L1, we start copying the remaining words. The second half of the
* source line is prefetched in an earlier iteration, so that by the time we start
* accessing it, it's also present in the L1.
*
* We use a software-pipelined loop to control the overall operation. The pipeline
* has 2*PREFETCH_DIST+K stages. The first PREFETCH_DIST stages are used for prefetching
* source cache-lines. The second PREFETCH_DIST stages are used for prefetching destination
* cache-lines, the last K stages are used to copy the cache-line words not copied by
* the prefetches. The four relevant points in the pipelined are called A, B, C, D:
* p[A] is TRUE if a source-line should be prefetched, p[B] is TRUE if a destination-line
* should be prefetched, p[C] is TRUE if the second half of an L2 line should be brought
* into L1D and p[D] is TRUE if a cacheline needs to be copied.
*
* This all sounds very complicated, but thanks to the modulo-scheduled loop support,
* the resulting code is very regular and quite easy to follow (once you get the idea).
*
* As a secondary optimization, the first 2*PREFETCH_DIST iterations are implemented
* as the separate .prefetch_loop. Logically, this loop performs exactly like the
* main-loop (.line_copy), but has all known-to-be-predicated-off instructions removed,
* so that each loop iteration is faster (again, good for cached case).
*
* When reading the code, it helps to keep the following picture in mind:
*
* word 0 word 1
* +------+------+---
* | v[x] | t1 | ^
* | t2 | t3 | |
* | t4 | t5 | |
* | t6 | t7 | | 128 bytes
* | n[y] | t9 | | (L2 cache line)
* | t10 | t11 | |
* | t12 | t13 | |
* | t14 | t15 | v
* +------+------+---
*
* Here, v[x] is copied by the (memory) prefetch. n[y] is loaded at p[C]
* to fetch the second-half of the L2 cache line into L1, and the tX words are copied in
* an order that avoids bank conflicts.
*/
#include <asm/asmmacro.h>
#include <asm/page.h>
#define PREFETCH_DIST 8 // McKinley sustains 16 outstanding L2 misses (8 ld, 8 st)
#define src0 r2
#define src1 r3
#define dst0 r9
#define dst1 r10
#define src_pre_mem r11
#define dst_pre_mem r14
#define src_pre_l2 r15
#define dst_pre_l2 r16
#define t1 r17
#define t2 r18
#define t3 r19
#define t4 r20
#define t5 t1 // alias!
#define t6 t2 // alias!
#define t7 t3 // alias!
#define t9 t5 // alias!
#define t10 t4 // alias!
#define t11 t7 // alias!
#define t12 t6 // alias!
#define t14 t10 // alias!
#define t13 r21
#define t15 r22
#define saved_lc r23
#define saved_pr r24
#define A 0
#define B (PREFETCH_DIST)
#define C (B + PREFETCH_DIST)
#define D (C + 3)
#define N (D + 1)
#define Nrot ((N + 7) & ~7)
GLOBAL_ENTRY(copy_page)
.prologue
alloc r8 = ar.pfs, 2, Nrot-2, 0, Nrot
.rotr v[2*PREFETCH_DIST], n[D-C+1]
.rotp p[N]
.save ar.lc, saved_lc
mov saved_lc = ar.lc
.save pr, saved_pr
mov saved_pr = pr
.body
mov src_pre_mem = in1
mov pr.rot = 0x10000
mov ar.ec = 1 // special unrolled loop
mov dst_pre_mem = in0
mov ar.lc = 2*PREFETCH_DIST - 1
add src_pre_l2 = 8*8, in1
add dst_pre_l2 = 8*8, in0
add src0 = 8, in1 // first t1 src
add src1 = 3*8, in1 // first t3 src
add dst0 = 8, in0 // first t1 dst
add dst1 = 3*8, in0 // first t3 dst
mov t1 = (PAGE_SIZE/128) - (2*PREFETCH_DIST) - 1
nop.m 0
nop.i 0
;;
// same as .line_copy loop, but with all predicated-off instructions removed:
.prefetch_loop:
(p[A]) ld8 v[A] = [src_pre_mem], 128 // M0
(p[B]) st8 [dst_pre_mem] = v[B], 128 // M2
br.ctop.sptk .prefetch_loop
;;
cmp.eq p16, p0 = r0, r0 // reset p16 to 1 (br.ctop cleared it to zero)
mov ar.lc = t1 // with 64KB pages, t1 is too big to fit in 8 bits!
mov ar.ec = N // # of stages in pipeline
;;
.line_copy:
(p[D]) ld8 t2 = [src0], 3*8 // M0
(p[D]) ld8 t4 = [src1], 3*8 // M1
(p[B]) st8 [dst_pre_mem] = v[B], 128 // M2 prefetch dst from memory
(p[D]) st8 [dst_pre_l2] = n[D-C], 128 // M3 prefetch dst from L2
;;
(p[A]) ld8 v[A] = [src_pre_mem], 128 // M0 prefetch src from memory
(p[C]) ld8 n[0] = [src_pre_l2], 128 // M1 prefetch src from L2
(p[D]) st8 [dst0] = t1, 8 // M2
(p[D]) st8 [dst1] = t3, 8 // M3
;;
(p[D]) ld8 t5 = [src0], 8
(p[D]) ld8 t7 = [src1], 3*8
(p[D]) st8 [dst0] = t2, 3*8
(p[D]) st8 [dst1] = t4, 3*8
;;
(p[D]) ld8 t6 = [src0], 3*8
(p[D]) ld8 t10 = [src1], 8
(p[D]) st8 [dst0] = t5, 8
(p[D]) st8 [dst1] = t7, 3*8
;;
(p[D]) ld8 t9 = [src0], 3*8
(p[D]) ld8 t11 = [src1], 3*8
(p[D]) st8 [dst0] = t6, 3*8
(p[D]) st8 [dst1] = t10, 8
;;
(p[D]) ld8 t12 = [src0], 8
(p[D]) ld8 t14 = [src1], 8
(p[D]) st8 [dst0] = t9, 3*8
(p[D]) st8 [dst1] = t11, 3*8
;;
(p[D]) ld8 t13 = [src0], 4*8
(p[D]) ld8 t15 = [src1], 4*8
(p[D]) st8 [dst0] = t12, 8
(p[D]) st8 [dst1] = t14, 8
;;
(p[D-1])ld8 t1 = [src0], 8
(p[D-1])ld8 t3 = [src1], 8
(p[D]) st8 [dst0] = t13, 4*8
(p[D]) st8 [dst1] = t15, 4*8
br.ctop.sptk .line_copy
;;
mov ar.lc = saved_lc
mov pr = saved_pr, -1
br.ret.sptk.many rp
END(copy_page)
arch/ia64/lib/do_csum.S
View file @ 79a5d877
......@@ -8,9 +8,11 @@
* in0: address of buffer to checksum (char *)
* in1: length of the buffer (int)
*
* Copyright (C) 1999, 2001 Hewlett-Packard Co
* Copyright (C) 1999 Stephane Eranian <eranian@hpl.hp.com>
* Copyright (C) 1999, 2001-2002 Hewlett-Packard Co
* Stephane Eranian <eranian@hpl.hp.com>
*
* 02/04/08 David Mosberger <davidm@hpl.hp.com>
* More cleanup and tuning.
* 01/04/18 Jun Nakajima <jun.nakajima@intel.com>
* Clean up and optimize and the software pipeline, loading two
* back-to-back 8-byte words per loop. Clean up the initialization
......@@ -71,8 +73,6 @@
// calculating the Internet checksum.
//
// NOT YET DONE:
// - use the lfetch instruction to augment the chances of the data being in
// the cache when we need it.
// - Maybe another algorithm which would take care of the folding at the
// end in a different manner
// - Work with people more knowledgeable than me on the network stack
......@@ -102,10 +102,6 @@
#define buf in0
#define len in1
#ifndef CONFIG_IA64_LOAD_LATENCY
#define CONFIG_IA64_LOAD_LATENCY 2
#endif
#define LOAD_LATENCY 2 // XXX fix me
#if (LOAD_LATENCY != 1) && (LOAD_LATENCY != 2)
......@@ -122,45 +118,46 @@ GLOBAL_ENTRY(do_csum)
.prologue
.save ar.pfs, saved_pfs
alloc saved_pfs=ar.pfs,2,16,1,16
.rotr word1[4], word2[4],result1[4],result2[4]
.rotp p[PIPE_DEPTH]
.rotr word1[4], word2[4],result1[LOAD_LATENCY+2],result2[LOAD_LATENCY+2]
.rotp p[PIPE_DEPTH], pC1[2], pC2[2]
mov ret0=r0 // in case we have zero length
cmp.lt p0,p6=r0,len // check for zero length or negative (32bit len)
;; // avoid WAW on CFM
mov tmp3=0x7 // a temporary mask/value
;;
add tmp1=buf,len // last byte's address
(p6) br.ret.spnt.many rp // return if true (hope we can avoid that)
.save pr, saved_pr
mov saved_pr=pr // preserve predicates (rotation)
(p6) br.ret.spnt.many rp // return if zero or negative length
and firstoff=7,buf // how many bytes off for first1 element
tbit.nz p15,p0=buf,0 // is buf an odd address ?
mov hmask=-1 // intialize head mask
;;
andcm first1=buf,tmp3 // 8byte aligned down address of first1 element
tbit.nz p15,p0=buf,0 // is buf an odd address?
and first1=-8,buf // 8-byte align down address of first1 element
and firstoff=7,buf // how many bytes off for first1 element
mov tmask=-1 // initialize tail mask
adds tmp2=-1,tmp1 // last-1
;;
adds tmp2=-1,tmp1 // last-1
and lastoff=7,tmp1 // how many bytes off for last element
andcm last=tmp2,tmp3 // address of word containing last byte
.save pr, saved_pr
mov saved_pr=pr // preserve predicates (rotation)
;;
sub tmp1=8,lastoff // complement to lastoff
and last=-8,tmp2 // address of word containing last byte
;;
sub tmp3=last,first1 // tmp3=distance from first1 to last
.save ar.lc, saved_lc
mov saved_lc=ar.lc // save lc
cmp.eq p8,p9=last,first1 // everything fits in one word ?
sub tmp1=8,lastoff // complement to lastoff
ld8 firstval=[first1],8 // load,ahead of time, "first1" word
ld8 firstval=[first1],8 // load, ahead of time, "first1" word
and tmp1=7, tmp1 // make sure that if tmp1==8 -> tmp1=0
shl tmp2=firstoff,3 // number of bits
;;
and tmp1=7, tmp1 // make sure that if tmp1==8 -> tmp1=0
(p9) ld8 lastval=[last] // load,ahead of time, "last" word, if needed
(p9) ld8 lastval=[last] // load, ahead of time, "last" word, if needed
shl tmp1=tmp1,3 // number of bits
(p9) adds tmp3=-8,tmp3 // effectively loaded
;;
(p8) mov lastval=r0 // we don't need lastval if first1==last
shl tmp1=tmp1,3 // number of bits
shl hmask=hmask,tmp2 // build head mask, mask off [0,first1off[
;;
shr.u tmask=tmask,tmp1 // build tail mask, mask off ]8,lastoff]
.save ar.lc, saved_lc
mov saved_lc=ar.lc // save lc
;;
.body
#define count tmp3
......@@ -171,8 +168,8 @@ GLOBAL_ENTRY(do_csum)
;;
// If count is odd, finish this 8-byte word so that we can
// load two back-to-back 8-byte words per loop thereafter.
tbit.nz p10,p11=count,0 // if (count is odd)
and word1[0]=firstval,hmask // and mask it as appropriate
tbit.nz p10,p11=count,0 // if (count is odd)
;;
(p8) mov result1[0]=word1[0]
(p9) add result1[0]=word1[0],word2[0]
......@@ -181,9 +178,8 @@ GLOBAL_ENTRY(do_csum)
;;
(p6) adds result1[0]=1,result1[0]
(p8) br.cond.dptk .do_csum_exit // if (within an 8-byte word)
;;
(p11) br.cond.dptk .do_csum16 // if (count is even)
;;
// Here count is odd.
ld8 word1[1]=[first1],8 // load an 8-byte word
cmp.eq p9,p10=1,count // if (count == 1)
......@@ -194,11 +190,9 @@ GLOBAL_ENTRY(do_csum)
cmp.ltu p6,p0=result1[0],word1[1]
;;
(p6) adds result1[0]=1,result1[0]
;;
(p9) br.cond.sptk .do_csum_exit // if (count == 1) exit
// Fall through to caluculate the checksum, feeding result1[0] as
// the initial value in result1[0].
;;
//
// Calculate the checksum loading two 8-byte words per loop.
//
......@@ -207,45 +201,36 @@ GLOBAL_ENTRY(do_csum)
shr.u count=count,1 // we do 16 bytes per loop
;;
cmp.eq p9,p10=r0,count // if (count == 0)
adds count=-1,count
brp.loop.imp 1f,2f
;;
adds count=-1,count
mov ar.ec=PIPE_DEPTH
;;
mov ar.lc=count // set lc
;;
// result1[0] must be initialized in advance.
mov result2[0]=r0
;;
mov pr.rot=1<<16
;;
mov carry1=r0
mov carry2=r0
;;
add first2=8,first1
;;
(p9) br.cond.sptk .do_csum_exit
;;
nop.m 0
nop.i 0
;;
.align 32
1:
(ELD_1) cmp.ltu p31,p0=result1[LOAD_LATENCY],word1[LOAD_LATENCY+1]
(p32) adds carry1=1,carry1
(ELD_1) cmp.ltu p47,p0=result2[LOAD_LATENCY],word2[LOAD_LATENCY+1]
(p48) adds carry2=1,carry2
(ELD_1) cmp.ltu pC1[0],p0=result1[LOAD_LATENCY],word1[LOAD_LATENCY+1]
(pC1[1])adds carry1=1,carry1
(ELD_1) cmp.ltu pC2[0],p0=result2[LOAD_LATENCY],word2[LOAD_LATENCY+1]
(pC2[1])adds carry2=1,carry2
(ELD) add result1[LOAD_LATENCY-1]=result1[LOAD_LATENCY],word1[LOAD_LATENCY]
(ELD) add result2[LOAD_LATENCY-1]=result2[LOAD_LATENCY],word2[LOAD_LATENCY]
2:
(p16) ld8 word1[0]=[first1],16
(p16) ld8 word2[0]=[first2],16
[2:]
(p[0]) ld8 word1[0]=[first1],16
(p[0]) ld8 word2[0]=[first2],16
br.ctop.sptk 1b
;;
// Since len is a 32-bit value, carry cannot be larger than
// a 64-bit value.
(p32) adds carry1=1,carry1 // since we miss the last one
(p48) adds carry2=1,carry2
// Since len is a 32-bit value, carry cannot be larger than a 64-bit value.
(pC1[1])adds carry1=1,carry1 // since we miss the last one
(pC2[1])adds carry2=1,carry2
;;
add result1[LOAD_LATENCY+1]=result1[LOAD_LATENCY+1],carry1
add result2[LOAD_LATENCY+1]=result2[LOAD_LATENCY+1],carry2
......@@ -263,18 +248,15 @@ GLOBAL_ENTRY(do_csum)
(p6) adds result1[0]=1,result1[0]
;;
.do_csum_exit:
movl tmp3=0xffffffff
;;
// XXX Fixme
//
// now fold 64 into 16 bits taking care of carry
// that's not very good because it has lots of sequentiality
//
and tmp1=result1[0],tmp3
mov tmp3=0xffff
zxt4 tmp1=result1[0]
shr.u tmp2=result1[0],32
;;
add result1[0]=tmp1,tmp2
shr.u tmp3=tmp3,16
;;
and tmp1=result1[0],tmp3
shr.u tmp2=result1[0],16
......
arch/ia64/lib/memset.S
View file @ 79a5d877
......@@ -9,8 +9,8 @@
* in1: byte value to use for storing
* in2: length of the buffer
*
* Copyright (C) 1999, 2001 Hewlett-Packard Co
* Copyright (C) 1999 Stephane Eranian <eranian@hpl.hp.com>
* Copyright (C) 1999, 2001, 2002 Hewlett-Packard Co
* Stephane Eranian <eranian@hpl.hp.com>
*/
#include <asm/asmmacro.h>
......@@ -30,7 +30,19 @@
#define saved_lc r20
#define tmp r21
GLOBAL_ENTRY(memset)
GLOBAL_ENTRY(__bzero)
.prologue
.save ar.pfs, saved_pfs
alloc saved_pfs=ar.pfs,0,0,3,0
mov out2=out1
mov out1=0
/* FALL THROUGH (explicit NOPs so that next alloc is preceded by stop bit!) */
nop.m 0
nop.f 0
nop.i 0
;;
END(__bzero)
GLOBAL_ENTRY(__memset_generic)
.prologue
.save ar.pfs, saved_pfs
alloc saved_pfs=ar.pfs,3,0,0,0 // cnt is sink here
......@@ -105,4 +117,7 @@ GLOBAL_ENTRY(memset)
;;
(p6) st1 [buf]=val // only 1 byte left
br.ret.sptk.many rp
END(memset)
END(__memset_generic)
.global memset
memset = __memset_generic // alias needed for gcc
arch/ia64/lib/swiotlb.c
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arch/ia64/mm/fault.c
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......@@ -120,15 +120,15 @@ ia64_do_page_fault (unsigned long address, unsigned long isr, struct pt_regs *re
if (!(prev_vma && (prev_vma->vm_flags & VM_GROWSUP) && (address == prev_vma->vm_end))) {
if (!(vma->vm_flags & VM_GROWSDOWN))
goto bad_area;
if (rgn_index(address) != rgn_index(vma->vm_start)
|| rgn_offset(address) >= RGN_MAP_LIMIT)
if (REGION_NUMBER(address) != REGION_NUMBER(vma->vm_start)
|| REGION_OFFSET(address) >= RGN_MAP_LIMIT)
goto bad_area;
if (expand_stack(vma, address))
goto bad_area;
} else {
vma = prev_vma;
if (rgn_index(address) != rgn_index(vma->vm_start)
|| rgn_offset(address) >= RGN_MAP_LIMIT)
if (REGION_NUMBER(address) != REGION_NUMBER(vma->vm_start)
|| REGION_OFFSET(address) >= RGN_MAP_LIMIT)
goto bad_area;
if (expand_backing_store(vma, address))
goto bad_area;
......
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arch/ia64/vmlinux.lds.S
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arch/sparc64/solaris/Makefile
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drivers/char/drm/Makefile
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drivers/char/n_hdlc.c
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drivers/char/synclink.c
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drivers/char/wdt977.c
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drivers/fc4/Makefile
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drivers/ide/Config.help
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drivers/ide/Makefile
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drivers/ide/ide-cd.c
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drivers/ide/ide-cd.h
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drivers/ide/ide-disk.c
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drivers/ide/ide-dma.c
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drivers/ide/ide-features.c
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drivers/ide/ide-floppy.c
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drivers/ide/ide-proc.c
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......@@ -422,7 +422,6 @@ void ide_remove_proc_entries(struct proc_dir_entry *dir, ide_proc_entry_t *p)
static void create_proc_ide_drives(struct ata_channel *hwif)
{
int d;
struct proc_dir_entry *ent;
struct proc_dir_entry *parent = hwif->proc;
char name[64];
......
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drivers/ide/pdc4030.c
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drivers/ieee1394/Makefile
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drivers/md/Makefile
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drivers/pnp/pnpbios_core.c
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drivers/scsi/ips.h
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drivers/scsi/scsi_debug.h
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drivers/usb/host/ehci-q.c
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drivers/usb/host/ehci-sched.c
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drivers/usb/host/ohci-dbg.c
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drivers/usb/misc/tiglusb.c
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fs/bfs/dir.c
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fs/ext2/namei.c
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fs/ext2/super.c
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fs/fat/inode.c
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fs/intermezzo/dir.c
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fs/jffs/Makefile
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fs/jfs/jfs_metapage.c
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fs/nfsd/export.c
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fs/nfsd/nfsctl.c
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fs/nfsd/nfsfh.c
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fs/nls/nls_base.c
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fs/reiserfs/inode.c
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fs/super.c
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include/asm-i386/bitops.h
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include/asm-ia64/acpi-ext.h deleted 100644 → 0
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include/asm-ia64/acpi.h 0 → 100644
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include/asm-ia64/acpikcfg.h deleted 100644 → 0
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include/asm-ia64/cacheflush.h 0 → 100644
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include/asm-ia64/efi.h
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include/asm-ia64/hw_irq.h
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include/asm-ia64/ide.h
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include/asm-ia64/machvec.h
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include/asm-ia64/machvec_hpzx1.h 0 → 100644
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include/asm-ia64/machvec_init.h
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include/asm-ia64/module.h
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include/asm-ia64/offsets.h
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include/asm-ia64/pci.h
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include/asm-ia64/percpu.h 0 → 100644
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include/asm-ia64/pgalloc.h
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include/asm-ia64/pgtable.h
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include/asm-ia64/processor.h
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include/asm-ia64/string.h
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include/asm-ia64/system.h
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include/asm-ia64/thread_info.h
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include/asm-ia64/tlbflush.h 0 → 100644
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include/asm-ia64/uaccess.h
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include/asm-ia64/unistd.h
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include/asm-ppc/bitops.h
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include/linux/acpi_serial.h
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include/linux/bfs_fs.h
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include/linux/capability.h
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include/linux/dcache.h
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include/linux/fb.h
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include/linux/fs.h
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include/linux/ide.h
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include/linux/interrupt.h
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include/linux/nls.h
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include/linux/pci_ids.h
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include/linux/prctl.h
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include/linux/raid/md.h
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include/linux/smp.h
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include/sound/asound.h
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include/sound/core.h
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kernel/ksyms.c
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kernel/printk.c
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kernel/sched.c
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kernel/sys.c
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lib/radix-tree.c
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mm/swapfile.c
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mm/vmscan.c
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net/atm/Makefile
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net/bluetooth/Makefile
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net/ipv4/netfilter/Makefile
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net/irda/ircomm/Makefile
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sound/core/device.c
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sound/core/memory.c
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sound/core/seq/seq_midi.c
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sound/core/seq/seq_midi_event.c
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sound/core/seq/seq_queue.c
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sound/core/seq/seq_queue.h
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sound/drivers/mpu401/mpu401_uart.c
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