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Merge branch 'master'

This commit is contained in:
Jeff Garzik 2005-10-13 21:22:27 -04:00
parent 0d69ae5fb7 046d20b739
commit 59aee3c2a1
323 changed files with 8096 additions and 2327 deletions
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44
Documentation/connector/connector.txt
View File

@ -131,3 +131,47 @@ Netlink itself is not reliable protocol, that means that messages can
be lost due to memory pressure or process' receiving queue overflowed,
so caller is warned must be prepared. That is why struct cn_msg [main
connector's message header] contains u32 seq and u32 ack fields.
/*****************************************/
Userspace usage.
/*****************************************/
2.6.14 has a new netlink socket implementation, which by default does not
allow to send data to netlink groups other than 1.
So, if to use netlink socket (for example using connector)
with different group number userspace application must subscribe to
that group. It can be achieved by following pseudocode:
s = socket(PF_NETLINK, SOCK_DGRAM, NETLINK_CONNECTOR);
l_local.nl_family = AF_NETLINK;
l_local.nl_groups = 12345;
l_local.nl_pid = 0;
if (bind(s, (struct sockaddr *)&l_local, sizeof(struct sockaddr_nl)) == -1) {
perror("bind");
close(s);
return -1;
}
{
int on = l_local.nl_groups;
setsockopt(s, 270, 1, &on, sizeof(on));
}
Where 270 above is SOL_NETLINK, and 1 is a NETLINK_ADD_MEMBERSHIP socket
option. To drop multicast subscription one should call above socket option
with NETLINK_DROP_MEMBERSHIP parameter which is defined as 0.
2.6.14 netlink code only allows to select a group which is less or equal to
the maximum group number, which is used at netlink_kernel_create() time.
In case of connector it is CN_NETLINK_USERS + 0xf, so if you want to use
group number 12345, you must increment CN_NETLINK_USERS to that number.
Additional 0xf numbers are allocated to be used by non-in-kernel users.
Due to this limitation, group 0xffffffff does not work now, so one can
not use add/remove connector's group notifications, but as far as I know,
only cn_test.c test module used it.
Some work in netlink area is still being done, so things can be changed in
2.6.15 timeframe, if it will happen, documentation will be updated for that
kernel.

38
Documentation/dell_rbu.txt
View File

@ -35,6 +35,7 @@ The driver load creates the following directories under the /sys file system.
/sys/class/firmware/dell_rbu/data
/sys/devices/platform/dell_rbu/image_type
/sys/devices/platform/dell_rbu/data
/sys/devices/platform/dell_rbu/packet_size
The driver supports two types of update mechanism; monolithic and packetized.
These update mechanism depends upon the BIOS currently running on the system.
@ -47,8 +48,26 @@ By default the driver uses monolithic memory for the update type. This can be
changed to packets during the driver load time by specifying the load
parameter image_type=packet. This can also be changed later as below
echo packet > /sys/devices/platform/dell_rbu/image_type
Also echoing either mono ,packet or init in to image_type will free up the
memory allocated by the driver.
In packet update mode the packet size has to be given before any packets can
be downloaded. It is done as below
echo XXXX > /sys/devices/platform/dell_rbu/packet_size
In the packet update mechanism, the user neesd to create a new file having
packets of data arranged back to back. It can be done as follows
The user creates packets header, gets the chunk of the BIOS image and
placs it next to the packetheader; now, the packetheader + BIOS image chunk
added to geather should match the specified packet_size. This makes one
packet, the user needs to create more such packets out of the entire BIOS
image file and then arrange all these packets back to back in to one single
file.
This file is then copied to /sys/class/firmware/dell_rbu/data.
Once this file gets to the driver, the driver extracts packet_size data from
the file and spreads it accross the physical memory in contiguous packet_sized
space.
This method makes sure that all the packets get to the driver in a single operation.
In monolithic update the user simply get the BIOS image (.hdr file) and copies
to the data file as is without any change to the BIOS image itself.
Do the steps below to download the BIOS image.
1) echo 1 > /sys/class/firmware/dell_rbu/loading
@ -58,7 +77,10 @@ Do the steps below to download the BIOS image.
The /sys/class/firmware/dell_rbu/ entries will remain till the following is
done.
echo -1 > /sys/class/firmware/dell_rbu/loading.
Until this step is completed the drivr cannot be unloaded.
Until this step is completed the driver cannot be unloaded.
Also echoing either mono ,packet or init in to image_type will free up the
memory allocated by the driver.
If an user by accident executes steps 1 and 3 above without executing step 2;
it will make the /sys/class/firmware/dell_rbu/ entries to disappear.
The entries can be recreated by doing the following
@ -66,15 +88,11 @@ echo init > /sys/devices/platform/dell_rbu/image_type
NOTE: echoing init in image_type does not change it original value.
Also the driver provides /sys/devices/platform/dell_rbu/data readonly file to
read back the image downloaded. This is useful in case of packet update
mechanism where the above steps 1,2,3 will repeated for every packet.
By reading the /sys/devices/platform/dell_rbu/data file all packet data
downloaded can be verified in a single file.
The packets are arranged in this file one after the other in a FIFO order.
read back the image downloaded.
NOTE:
This driver requires a patch for firmware_class.c which has the addition
of request_firmware_nowait_nohotplug function to wortk
This driver requires a patch for firmware_class.c which has the modified
request_firmware_nowait function.
Also after updating the BIOS image an user mdoe application neeeds to execute
code which message the BIOS update request to the BIOS. So on the next reboot
the BIOS knows about the new image downloaded and it updates it self.

161
Documentation/keys-request-key.txt Normal file
View File

@ -0,0 +1,161 @@
===================
KEY REQUEST SERVICE
===================
The key request service is part of the key retention service (refer to
Documentation/keys.txt). This document explains more fully how that the
requesting algorithm works.
The process starts by either the kernel requesting a service by calling
request_key():
struct key *request_key(const struct key_type *type,
const char *description,
const char *callout_string);
Or by userspace invoking the request_key system call:
key_serial_t request_key(const char *type,
const char *description,
const char *callout_info,
key_serial_t dest_keyring);
The main difference between the two access points is that the in-kernel
interface does not need to link the key to a keyring to prevent it from being
immediately destroyed. The kernel interface returns a pointer directly to the
key, and it's up to the caller to destroy the key.
The userspace interface links the key to a keyring associated with the process
to prevent the key from going away, and returns the serial number of the key to
the caller.
===========
THE PROCESS
===========
A request proceeds in the following manner:
(1) Process A calls request_key() [the userspace syscall calls the kernel
interface].
(2) request_key() searches the process's subscribed keyrings to see if there's
a suitable key there. If there is, it returns the key. If there isn't, and
callout_info is not set, an error is returned. Otherwise the process
proceeds to the next step.
(3) request_key() sees that A doesn't have the desired key yet, so it creates
two things:
(a) An uninstantiated key U of requested type and description.
(b) An authorisation key V that refers to key U and notes that process A
is the context in which key U should be instantiated and secured, and
from which associated key requests may be satisfied.
(4) request_key() then forks and executes /sbin/request-key with a new session
keyring that contains a link to auth key V.
(5) /sbin/request-key execs an appropriate program to perform the actual
instantiation.
(6) The program may want to access another key from A's context (say a
Kerberos TGT key). It just requests the appropriate key, and the keyring
search notes that the session keyring has auth key V in its bottom level.
This will permit it to then search the keyrings of process A with the
UID, GID, groups and security info of process A as if it was process A,
and come up with key W.
(7) The program then does what it must to get the data with which to
instantiate key U, using key W as a reference (perhaps it contacts a
Kerberos server using the TGT) and then instantiates key U.
(8) Upon instantiating key U, auth key V is automatically revoked so that it
may not be used again.
(9) The program then exits 0 and request_key() deletes key V and returns key
U to the caller.
This also extends further. If key W (step 5 above) didn't exist, key W would be
created uninstantiated, another auth key (X) would be created [as per step 3]
and another copy of /sbin/request-key spawned [as per step 4]; but the context
specified by auth key X will still be process A, as it was in auth key V.
This is because process A's keyrings can't simply be attached to
/sbin/request-key at the appropriate places because (a) execve will discard two
of them, and (b) it requires the same UID/GID/Groups all the way through.
======================
NEGATIVE INSTANTIATION
======================
Rather than instantiating a key, it is possible for the possessor of an
authorisation key to negatively instantiate a key that's under construction.
This is a short duration placeholder that causes any attempt at re-requesting
the key whilst it exists to fail with error ENOKEY.
This is provided to prevent excessive repeated spawning of /sbin/request-key
processes for a key that will never be obtainable.
Should the /sbin/request-key process exit anything other than 0 or die on a
signal, the key under construction will be automatically negatively
instantiated for a short amount of time.
====================
THE SEARCH ALGORITHM
====================
A search of any particular keyring proceeds in the following fashion:
(1) When the key management code searches for a key (keyring_search_aux) it
firstly calls key_permission(SEARCH) on the keyring it's starting with,
if this denies permission, it doesn't search further.
(2) It considers all the non-keyring keys within that keyring and, if any key
matches the criteria specified, calls key_permission(SEARCH) on it to see
if the key is allowed to be found. If it is, that key is returned; if
not, the search continues, and the error code is retained if of higher
priority than the one currently set.
(3) It then considers all the keyring-type keys in the keyring it's currently
searching. It calls key_permission(SEARCH) on each keyring, and if this
grants permission, it recurses, executing steps (2) and (3) on that
keyring.
The process stops immediately a valid key is found with permission granted to
use it. Any error from a previous match attempt is discarded and the key is
returned.
When search_process_keyrings() is invoked, it performs the following searches
until one succeeds:
(1) If extant, the process's thread keyring is searched.
(2) If extant, the process's process keyring is searched.
(3) The process's session keyring is searched.
(4) If the process has a request_key() authorisation key in its session
keyring then:
(a) If extant, the calling process's thread keyring is searched.
(b) If extant, the calling process's process keyring is searched.
(c) The calling process's session keyring is searched.
The moment one succeeds, all pending errors are discarded and the found key is
returned.
Only if all these fail does the whole thing fail with the highest priority
error. Note that several errors may have come from LSM.
The error priority is:
EKEYREVOKED > EKEYEXPIRED > ENOKEY
EACCES/EPERM are only returned on a direct search of a specific keyring where
the basal keyring does not grant Search permission.

18
Documentation/keys.txt
View File

@ -361,6 +361,8 @@ The main syscalls are:
/sbin/request-key will be invoked in an attempt to obtain a key. The
callout_info string will be passed as an argument to the program.
See also Documentation/keys-request-key.txt.
The keyctl syscall functions are:
@ -533,8 +535,8 @@ The keyctl syscall functions are:
(*) Read the payload data from a key:
key_serial_t keyctl(KEYCTL_READ, key_serial_t keyring, char *buffer,
size_t buflen);
long keyctl(KEYCTL_READ, key_serial_t keyring, char *buffer,
size_t buflen);
This function attempts to read the payload data from the specified key
into the buffer. The process must have read permission on the key to
@ -555,9 +557,9 @@ The keyctl syscall functions are:
(*) Instantiate a partially constructed key.
key_serial_t keyctl(KEYCTL_INSTANTIATE, key_serial_t key,
const void *payload, size_t plen,
key_serial_t keyring);
long keyctl(KEYCTL_INSTANTIATE, key_serial_t key,
const void *payload, size_t plen,
key_serial_t keyring);
If the kernel calls back to userspace to complete the instantiation of a
key, userspace should use this call to supply data for the key before the
@ -576,8 +578,8 @@ The keyctl syscall functions are:
(*) Negatively instantiate a partially constructed key.
key_serial_t keyctl(KEYCTL_NEGATE, key_serial_t key,
unsigned timeout, key_serial_t keyring);
long keyctl(KEYCTL_NEGATE, key_serial_t key,
unsigned timeout, key_serial_t keyring);
If the kernel calls back to userspace to complete the instantiation of a
key, userspace should use this call mark the key as negative before the
@ -688,6 +690,8 @@ payload contents" for more information.
If successful, the key will have been attached to the default keyring for
implicitly obtained request-key keys, as set by KEYCTL_SET_REQKEY_KEYRING.
See also Documentation/keys-request-key.txt.
(*) When it is no longer required, the key should be released using:

2
Makefile
View File

@ -1,7 +1,7 @@
VERSION = 2
PATCHLEVEL = 6
SUBLEVEL = 14
EXTRAVERSION =-rc3
EXTRAVERSION =-rc4
NAME=Affluent Albatross
# *DOCUMENTATION*

2
arch/arm/Makefile
View File

@ -53,7 +53,7 @@ tune-$(CONFIG_CPU_ARM926T) :=-mtune=arm9tdmi
tune-$(CONFIG_CPU_SA110) :=-mtune=strongarm110
tune-$(CONFIG_CPU_SA1100) :=-mtune=strongarm1100
tune-$(CONFIG_CPU_XSCALE) :=$(call cc-option,-mtune=xscale,-mtune=strongarm110) -Wa,-mcpu=xscale
tune-$(CONFIG_CPU_V6) :=-mtune=strongarm
tune-$(CONFIG_CPU_V6) :=$(call cc-option,-mtune=arm1136j-s,-mtune=strongarm)
# Need -Uarm for gcc < 3.x
CFLAGS_ABI :=$(call cc-option,-mapcs-32,-mabi=apcs-gnu) $(call cc-option,-mno-thumb-interwork,)

20
arch/arm/common/scoop.c
View File

@ -26,6 +26,8 @@ struct scoop_pcmcia_dev *scoop_devs;
struct scoop_dev {
void *base;
spinlock_t scoop_lock;
unsigned short suspend_clr;
unsigned short suspend_set;
u32 scoop_gpwr;
};
@ -90,14 +92,24 @@ EXPORT_SYMBOL(reset_scoop);
EXPORT_SYMBOL(read_scoop_reg);
EXPORT_SYMBOL(write_scoop_reg);
static void check_scoop_reg(struct scoop_dev *sdev)
{
unsigned short mcr;
mcr = SCOOP_REG(sdev->base, SCOOP_MCR);
if ((mcr & 0x100) == 0)
SCOOP_REG(sdev->base, SCOOP_MCR) = 0x0101;
}
#ifdef CONFIG_PM
static int scoop_suspend(struct device *dev, pm_message_t state, uint32_t level)
{
if (level == SUSPEND_POWER_DOWN) {
struct scoop_dev *sdev = dev_get_drvdata(dev);
sdev->scoop_gpwr = SCOOP_REG(sdev->base,SCOOP_GPWR);
SCOOP_REG(sdev->base,SCOOP_GPWR) = 0;
check_scoop_reg(sdev);
sdev->scoop_gpwr = SCOOP_REG(sdev->base, SCOOP_GPWR);
SCOOP_REG(sdev->base, SCOOP_GPWR) = (sdev->scoop_gpwr & ~sdev->suspend_clr) | sdev->suspend_set;
}
return 0;
}
@ -107,6 +119,7 @@ static int scoop_resume(struct device *dev, uint32_t level)
if (level == RESUME_POWER_ON) {
struct scoop_dev *sdev = dev_get_drvdata(dev);
check_scoop_reg(sdev);
SCOOP_REG(sdev->base,SCOOP_GPWR) = sdev->scoop_gpwr;
}
return 0;
@ -151,6 +164,9 @@ int __init scoop_probe(struct device *dev)
SCOOP_REG(devptr->base, SCOOP_GPCR) = inf->io_dir & 0xffff;
SCOOP_REG(devptr->base, SCOOP_GPWR) = inf->io_out & 0xffff;
devptr->suspend_clr = inf->suspend_clr;
devptr->suspend_set = inf->suspend_set;
return 0;
}

888
arch/arm/configs/collie_defconfig Normal file
View File

@ -0,0 +1,888 @@
#
# Automatically generated make config: don't edit
# Linux kernel version: 2.6.14-rc3
# Sun Oct 9 16:55:14 2005
#
CONFIG_ARM=y
CONFIG_MMU=y
CONFIG_UID16=y
CONFIG_RWSEM_GENERIC_SPINLOCK=y
CONFIG_GENERIC_CALIBRATE_DELAY=y
#
# Code maturity level options
#
CONFIG_EXPERIMENTAL=y
# CONFIG_CLEAN_COMPILE is not set
CONFIG_BROKEN=y
CONFIG_BROKEN_ON_SMP=y
CONFIG_LOCK_KERNEL=y
CONFIG_INIT_ENV_ARG_LIMIT=32
#
# General setup
#
CONFIG_LOCALVERSION=""
CONFIG_LOCALVERSION_AUTO=y
CONFIG_SWAP=y
CONFIG_SYSVIPC=y
# CONFIG_POSIX_MQUEUE is not set
CONFIG_BSD_PROCESS_ACCT=y
# CONFIG_BSD_PROCESS_ACCT_V3 is not set
CONFIG_SYSCTL=y
# CONFIG_AUDIT is not set
CONFIG_HOTPLUG=y
CONFIG_KOBJECT_UEVENT=y
# CONFIG_IKCONFIG is not set
CONFIG_INITRAMFS_SOURCE=""
CONFIG_EMBEDDED=y
CONFIG_KALLSYMS=y
# CONFIG_KALLSYMS_ALL is not set
# CONFIG_KALLSYMS_EXTRA_PASS is not set
CONFIG_PRINTK=y
CONFIG_BUG=y
CONFIG_BASE_FULL=y
CONFIG_FUTEX=y
CONFIG_EPOLL=y
# CONFIG_CC_OPTIMIZE_FOR_SIZE is not set
CONFIG_SHMEM=y
CONFIG_CC_ALIGN_FUNCTIONS=0
CONFIG_CC_ALIGN_LABELS=0
CONFIG_CC_ALIGN_LOOPS=0
CONFIG_CC_ALIGN_JUMPS=0
# CONFIG_TINY_SHMEM is not set
CONFIG_BASE_SMALL=0
#
# Loadable module support
#
CONFIG_MODULES=y
CONFIG_MODULE_UNLOAD=y
CONFIG_MODULE_FORCE_UNLOAD=y
CONFIG_OBSOLETE_MODPARM=y
CONFIG_MODVERSIONS=y
# CONFIG_MODULE_SRCVERSION_ALL is not set
CONFIG_KMOD=y
#
# System Type
#
# CONFIG_ARCH_CLPS7500 is not set
# CONFIG_ARCH_CLPS711X is not set
# CONFIG_ARCH_CO285 is not set
# CONFIG_ARCH_EBSA110 is not set
# CONFIG_ARCH_CAMELOT is not set
# CONFIG_ARCH_FOOTBRIDGE is not set
# CONFIG_ARCH_INTEGRATOR is not set
# CONFIG_ARCH_IOP3XX is not set
# CONFIG_ARCH_IXP4XX is not set
# CONFIG_ARCH_IXP2000 is not set
# CONFIG_ARCH_L7200 is not set
# CONFIG_ARCH_PXA is not set
# CONFIG_ARCH_RPC is not set
CONFIG_ARCH_SA1100=y
# CONFIG_ARCH_S3C2410 is not set
# CONFIG_ARCH_SHARK is not set
# CONFIG_ARCH_LH7A40X is not set
# CONFIG_ARCH_OMAP is not set
# CONFIG_ARCH_VERSATILE is not set
# CONFIG_ARCH_IMX is not set
# CONFIG_ARCH_H720X is not set
# CONFIG_ARCH_AAEC2000 is not set
#
# SA11x0 Implementations
#
# CONFIG_SA1100_ASSABET is not set
# CONFIG_SA1100_CERF is not set
CONFIG_SA1100_COLLIE=y
# CONFIG_SA1100_H3100 is not set
# CONFIG_SA1100_H3600 is not set
# CONFIG_SA1100_H3800 is not set
# CONFIG_SA1100_BADGE4 is not set
# CONFIG_SA1100_JORNADA720 is not set
# CONFIG_SA1100_HACKKIT is not set
# CONFIG_SA1100_LART is not set
# CONFIG_SA1100_PLEB is not set
# CONFIG_SA1100_SHANNON is not set
# CONFIG_SA1100_SIMPAD is not set
# CONFIG_SA1100_SSP is not set
#
# Processor Type
#
CONFIG_CPU_32=y
CONFIG_CPU_SA1100=y
CONFIG_CPU_32v4=y
CONFIG_CPU_ABRT_EV4=y
CONFIG_CPU_CACHE_V4WB=y
CONFIG_CPU_CACHE_VIVT=y
CONFIG_CPU_TLB_V4WB=y
#
# Processor Features
#
CONFIG_SHARP_LOCOMO=y
CONFIG_SHARP_PARAM=y
CONFIG_SHARP_SCOOP=y
#
# Bus support
#
CONFIG_ISA=y
CONFIG_ISA_DMA_API=y
#
# PCCARD (PCMCIA/CardBus) support
#
# CONFIG_PCCARD is not set
#
# Kernel Features
#
# CONFIG_SMP is not set
CONFIG_PREEMPT=y
# CONFIG_NO_IDLE_HZ is not set
CONFIG_ARCH_DISCONTIGMEM_ENABLE=y
CONFIG_SELECT_MEMORY_MODEL=y
# CONFIG_FLATMEM_MANUAL is not set
CONFIG_DISCONTIGMEM_MANUAL=y
# CONFIG_SPARSEMEM_MANUAL is not set
CONFIG_DISCONTIGMEM=y
CONFIG_FLAT_NODE_MEM_MAP=y
CONFIG_NEED_MULTIPLE_NODES=y
# CONFIG_SPARSEMEM_STATIC is not set
# CONFIG_LEDS is not set
CONFIG_ALIGNMENT_TRAP=y
#
# Boot options
#
CONFIG_ZBOOT_ROM_TEXT=0x0
CONFIG_ZBOOT_ROM_BSS=0x0
CONFIG_CMDLINE="console=ttyS0,115200n8 console=tty1 noinitrd root=/dev/mtdblock2 rootfstype=jffs2 debug"
# CONFIG_XIP_KERNEL is not set
#
# CPU Frequency scaling
#
# CONFIG_CPU_FREQ is not set
#
# Floating point emulation
#
#
# At least one emulation must be selected
#
CONFIG_FPE_NWFPE=y
# CONFIG_FPE_NWFPE_XP is not set
# CONFIG_FPE_FASTFPE is not set
#
# Userspace binary formats
#
CONFIG_BINFMT_ELF=y
CONFIG_BINFMT_AOUT=m
CONFIG_BINFMT_MISC=m
# CONFIG_ARTHUR is not set
#
# Power management options
#
CONFIG_PM=y
CONFIG_APM=y
#
# Networking
#
CONFIG_NET=y
#
# Networking options
#
CONFIG_PACKET=y
CONFIG_PACKET_MMAP=y
CONFIG_UNIX=y
# CONFIG_NET_KEY is not set
CONFIG_INET=y
# CONFIG_IP_MULTICAST is not set
# CONFIG_IP_ADVANCED_ROUTER is not set
CONFIG_IP_FIB_HASH=y
# CONFIG_IP_PNP is not set
# CONFIG_NET_IPIP is not set
# CONFIG_NET_IPGRE is not set
# CONFIG_ARPD is not set
CONFIG_SYN_COOKIES=y
# CONFIG_INET_AH is not set
# CONFIG_INET_ESP is not set
# CONFIG_INET_IPCOMP is not set
# CONFIG_INET_TUNNEL is not set
CONFIG_INET_DIAG=y
CONFIG_INET_TCP_DIAG=y
# CONFIG_TCP_CONG_ADVANCED is not set
CONFIG_TCP_CONG_BIC=y
# CONFIG_IPV6 is not set
# CONFIG_NETFILTER is not set
#
# DCCP Configuration (EXPERIMENTAL)
#
# CONFIG_IP_DCCP is not set
#
# SCTP Configuration (EXPERIMENTAL)
#
# CONFIG_IP_SCTP is not set
# CONFIG_ATM is not set
# CONFIG_BRIDGE is not set
# CONFIG_VLAN_8021Q is not set
# CONFIG_DECNET is not set
# CONFIG_LLC2 is not set
# CONFIG_IPX is not set
# CONFIG_ATALK is not set
# CONFIG_X25 is not set
# CONFIG_LAPB is not set
# CONFIG_NET_DIVERT is not set
# CONFIG_ECONET is not set
# CONFIG_WAN_ROUTER is not set
# CONFIG_NET_SCHED is not set
# CONFIG_NET_CLS_ROUTE is not set
#
# Network testing
#
# CONFIG_NET_PKTGEN is not set
# CONFIG_HAMRADIO is not set
# CONFIG_IRDA is not set
# CONFIG_BT is not set
# CONFIG_IEEE80211 is not set
#
# Device Drivers
#
#
# Generic Driver Options
#
CONFIG_STANDALONE=y
CONFIG_PREVENT_FIRMWARE_BUILD=y
CONFIG_FW_LOADER=m
# CONFIG_DEBUG_DRIVER is not set
#
# Memory Technology Devices (MTD)
#
CONFIG_MTD=y
# CONFIG_MTD_DEBUG is not set
# CONFIG_MTD_CONCAT is not set
CONFIG_MTD_PARTITIONS=y
# CONFIG_MTD_REDBOOT_PARTS is not set
# CONFIG_MTD_CMDLINE_PARTS is not set
# CONFIG_MTD_AFS_PARTS is not set
#
# User Modules And Translation Layers
#
CONFIG_MTD_CHAR=y
CONFIG_MTD_BLOCK=y
# CONFIG_FTL is not set
# CONFIG_NFTL is not set
# CONFIG_INFTL is not set
#
# RAM/ROM/Flash chip drivers
#
# CONFIG_MTD_CFI is not set
# CONFIG_MTD_JEDECPROBE is not set
CONFIG_MTD_MAP_BANK_WIDTH_1=y
CONFIG_MTD_MAP_BANK_WIDTH_2=y
CONFIG_MTD_MAP_BANK_WIDTH_4=y
# CONFIG_MTD_MAP_BANK_WIDTH_8 is not set
# CONFIG_MTD_MAP_BANK_WIDTH_16 is not set
# CONFIG_MTD_MAP_BANK_WIDTH_32 is not set
CONFIG_MTD_CFI_I1=y
CONFIG_MTD_CFI_I2=y
# CONFIG_MTD_CFI_I4 is not set
# CONFIG_MTD_CFI_I8 is not set
# CONFIG_MTD_RAM is not set
# CONFIG_MTD_ROM is not set
# CONFIG_MTD_ABSENT is not set
CONFIG_MTD_OBSOLETE_CHIPS=y
# CONFIG_MTD_AMDSTD is not set
CONFIG_MTD_SHARP=y
# CONFIG_MTD_JEDEC is not set
#
# Mapping drivers for chip access
#
# CONFIG_MTD_COMPLEX_MAPPINGS is not set
# CONFIG_MTD_PLATRAM is not set
#
# Self-contained MTD device drivers
#
# CONFIG_MTD_SLRAM is not set
# CONFIG_MTD_PHRAM is not set
# CONFIG_MTD_MTDRAM is not set
# CONFIG_MTD_BLKMTD is not set
# CONFIG_MTD_BLOCK2MTD is not set
#
# Disk-On-Chip Device Drivers
#
# CONFIG_MTD_DOC2000 is not set
# CONFIG_MTD_DOC2001 is not set
# CONFIG_MTD_DOC2001PLUS is not set
#
# NAND Flash Device Drivers
#
# CONFIG_MTD_NAND is not set
#
# Parallel port support
#
# CONFIG_PARPORT is not set
#
# Plug and Play support
#
# CONFIG_PNP is not set
#
# Block devices
#
# CONFIG_BLK_DEV_XD is not set
# CONFIG_BLK_DEV_COW_COMMON is not set
CONFIG_BLK_DEV_LOOP=y
# CONFIG_BLK_DEV_CRYPTOLOOP is not set
# CONFIG_BLK_DEV_NBD is not set
CONFIG_BLK_DEV_RAM=y
CONFIG_BLK_DEV_RAM_COUNT=16
CONFIG_BLK_DEV_RAM_SIZE=1024
CONFIG_BLK_DEV_INITRD=y
# CONFIG_CDROM_PKTCDVD is not set
#
# IO Schedulers
#
CONFIG_IOSCHED_NOOP=y
CONFIG_IOSCHED_AS=y
CONFIG_IOSCHED_DEADLINE=y
CONFIG_IOSCHED_CFQ=y
CONFIG_ATA_OVER_ETH=m
#
# ATA/ATAPI/MFM/RLL support
#
# CONFIG_IDE is not set
#
# SCSI device support
#
# CONFIG_RAID_ATTRS is not set
# CONFIG_SCSI is not set
#
# Multi-device support (RAID and LVM)
#
# CONFIG_MD is not set
#
# Fusion MPT device support
#
# CONFIG_FUSION is not set
#
# IEEE 1394 (FireWire) support
#
# CONFIG_IEEE1394 is not set
#
# I2O device support
#
#
# Network device support
#
# CONFIG_NETDEVICES is not set
# CONFIG_NETPOLL is not set
# CONFIG_NET_POLL_CONTROLLER is not set
#
# ISDN subsystem
#
# CONFIG_ISDN is not set
#
# Input device support
#
CONFIG_INPUT=y
#
# Userland interfaces
#
# CONFIG_INPUT_MOUSEDEV is not set
# CONFIG_INPUT_JOYDEV is not set
CONFIG_INPUT_TSDEV=y
CONFIG_INPUT_TSDEV_SCREEN_X=240
CONFIG_INPUT_TSDEV_SCREEN_Y=320
CONFIG_INPUT_EVDEV=y
CONFIG_INPUT_EVBUG=y
#
# Input Device Drivers
#
CONFIG_INPUT_KEYBOARD=y
# CONFIG_KEYBOARD_ATKBD is not set
# CONFIG_KEYBOARD_SUNKBD is not set
# CONFIG_KEYBOARD_LKKBD is not set
CONFIG_KEYBOARD_LOCOMO=y
# CONFIG_KEYBOARD_XTKBD is not set
# CONFIG_KEYBOARD_NEWTON is not set
# CONFIG_INPUT_MOUSE is not set
# CONFIG_INPUT_JOYSTICK is not set
# CONFIG_INPUT_TOUCHSCREEN is not set
# CONFIG_INPUT_MISC is not set
#
# Hardware I/O ports
#
CONFIG_SERIO=y
# CONFIG_SERIO_SERPORT is not set
# CONFIG_SERIO_LIBPS2 is not set
# CONFIG_SERIO_RAW is not set
# CONFIG_GAMEPORT is not set
#
# Character devices
#
CONFIG_VT=y
CONFIG_VT_CONSOLE=y
CONFIG_HW_CONSOLE=y
# CONFIG_SERIAL_NONSTANDARD is not set
#
# Serial drivers
#
# CONFIG_SERIAL_8250 is not set
#
# Non-8250 serial port support
#
CONFIG_SERIAL_SA1100=y
CONFIG_SERIAL_SA1100_CONSOLE=y
CONFIG_SERIAL_CORE=y
CONFIG_SERIAL_CORE_CONSOLE=y
CONFIG_UNIX98_PTYS=y
# CONFIG_LEGACY_PTYS is not set
#
# IPMI
#
# CONFIG_IPMI_HANDLER is not set
#
# Watchdog Cards
#
# CONFIG_WATCHDOG is not set
# CONFIG_NVRAM is not set
# CONFIG_RTC is not set
# CONFIG_DTLK is not set
# CONFIG_R3964 is not set
#
# Ftape, the floppy tape device driver
#
# CONFIG_RAW_DRIVER is not set
#
# TPM devices
#
#
# I2C support
#
CONFIG_I2C=m
# CONFIG_I2C_CHARDEV is not set
#
# I2C Algorithms
#
CONFIG_I2C_ALGOBIT=m
# CONFIG_I2C_ALGOPCF is not set
# CONFIG_I2C_ALGOPCA is not set
#
# I2C Hardware Bus support
#
# CONFIG_I2C_ELEKTOR is not set
# CONFIG_I2C_PARPORT_LIGHT is not set
# CONFIG_I2C_STUB is not set
# CONFIG_I2C_PCA_ISA is not set
#
# Miscellaneous I2C Chip support
#
# CONFIG_SENSORS_DS1337 is not set
# CONFIG_SENSORS_DS1374 is not set
# CONFIG_SENSORS_EEPROM is not set
# CONFIG_SENSORS_PCF8574 is not set
# CONFIG_SENSORS_PCA9539 is not set
# CONFIG_SENSORS_PCF8591 is not set
# CONFIG_SENSORS_RTC8564 is not set
# CONFIG_SENSORS_MAX6875 is not set
# CONFIG_I2C_DEBUG_CORE is not set
# CONFIG_I2C_DEBUG_ALGO is not set
# CONFIG_I2C_DEBUG_BUS is not set
# CONFIG_I2C_DEBUG_CHIP is not set
#
# Hardware Monitoring support
#
CONFIG_HWMON=y
# CONFIG_HWMON_VID is not set
# CONFIG_SENSORS_ADM1021 is not set
# CONFIG_SENSORS_ADM1025 is not set
# CONFIG_SENSORS_ADM1026 is not set
# CONFIG_SENSORS_ADM1031 is not set
# CONFIG_SENSORS_ADM9240 is not set
# CONFIG_SENSORS_ASB100 is not set
# CONFIG_SENSORS_ATXP1 is not set
# CONFIG_SENSORS_DS1621 is not set
# CONFIG_SENSORS_FSCHER is not set
# CONFIG_SENSORS_FSCPOS is not set
# CONFIG_SENSORS_GL518SM is not set
# CONFIG_SENSORS_GL520SM is not set
# CONFIG_SENSORS_IT87 is not set
# CONFIG_SENSORS_LM63 is not set
# CONFIG_SENSORS_LM75 is not set
# CONFIG_SENSORS_LM77 is not set
# CONFIG_SENSORS_LM78 is not set
# CONFIG_SENSORS_LM80 is not set
# CONFIG_SENSORS_LM83 is not set
# CONFIG_SENSORS_LM85 is not set
# CONFIG_SENSORS_LM87 is not set
# CONFIG_SENSORS_LM90 is not set
# CONFIG_SENSORS_LM92 is not set
# CONFIG_SENSORS_MAX1619 is not set
# CONFIG_SENSORS_PC87360 is not set
# CONFIG_SENSORS_SMSC47M1 is not set
# CONFIG_SENSORS_SMSC47B397 is not set
# CONFIG_SENSORS_W83781D is not set
# CONFIG_SENSORS_W83792D is not set
# CONFIG_SENSORS_W83L785TS is not set
# CONFIG_SENSORS_W83627HF is not set
# CONFIG_SENSORS_W83627EHF is not set
# CONFIG_HWMON_DEBUG_CHIP is not set
#
# Misc devices
#
#
# Multimedia Capabilities Port drivers
#
# CONFIG_MCP_SA11X0 is not set
#
# Multimedia devices
#
CONFIG_VIDEO_DEV=m
#
# Video For Linux
#
#
# Video Adapters
#
# CONFIG_VIDEO_PMS is not set
# CONFIG_VIDEO_CPIA is not set
# CONFIG_VIDEO_SAA5246A is not set
# CONFIG_VIDEO_SAA5249 is not set
# CONFIG_TUNER_3036 is not set
# CONFIG_VIDEO_OVCAMCHIP is not set
#
# Radio Adapters
#
# CONFIG_RADIO_CADET is not set
# CONFIG_RADIO_RTRACK is not set
# CONFIG_RADIO_RTRACK2 is not set
# CONFIG_RADIO_AZTECH is not set
# CONFIG_RADIO_GEMTEK is not set
# CONFIG_RADIO_MAESTRO is not set
# CONFIG_RADIO_SF16FMI is not set
# CONFIG_RADIO_SF16FMR2 is not set
# CONFIG_RADIO_TERRATEC is not set
# CONFIG_RADIO_TRUST is not set
# CONFIG_RADIO_TYPHOON is not set
# CONFIG_RADIO_ZOLTRIX is not set
#
# Digital Video Broadcasting Devices
#
# CONFIG_DVB is not set
#
# Graphics support
#
CONFIG_FB=y
CONFIG_FB_CFB_FILLRECT=y
CONFIG_FB_CFB_COPYAREA=y
CONFIG_FB_CFB_IMAGEBLIT=y
CONFIG_FB_SOFT_CURSOR=y
# CONFIG_FB_MACMODES is not set
CONFIG_FB_MODE_HELPERS=y
# CONFIG_FB_TILEBLITTING is not set
CONFIG_FB_SA1100=y
# CONFIG_FB_S1D13XXX is not set
# CONFIG_FB_VIRTUAL is not set
#
# Console display driver support
#
# CONFIG_VGA_CONSOLE is not set
# CONFIG_MDA_CONSOLE is not set
CONFIG_DUMMY_CONSOLE=y
CONFIG_FRAMEBUFFER_CONSOLE=y
CONFIG_FONTS=y
CONFIG_FONT_8x8=y
# CONFIG_FONT_8x16 is not set
# CONFIG_FONT_6x11 is not set
# CONFIG_FONT_7x14 is not set
# CONFIG_FONT_PEARL_8x8 is not set
# CONFIG_FONT_ACORN_8x8 is not set
# CONFIG_FONT_MINI_4x6 is not set
# CONFIG_FONT_SUN8x16 is not set
# CONFIG_FONT_SUN12x22 is not set
# CONFIG_FONT_10x18 is not set
#
# Logo configuration
#
# CONFIG_LOGO is not set
# CONFIG_BACKLIGHT_LCD_SUPPORT is not set
#
# Sound
#
# CONFIG_SOUND is not set
#
# USB support
#
CONFIG_USB_ARCH_HAS_HCD=y
# CONFIG_USB_ARCH_HAS_OHCI is not set
# CONFIG_USB is not set
#
# USB Gadget Support
#
CONFIG_USB_GADGET=y
# CONFIG_USB_GADGET_DEBUG_FILES is not set
# CONFIG_USB_GADGET_NET2280 is not set
# CONFIG_USB_GADGET_PXA2XX is not set
# CONFIG_USB_GADGET_GOKU is not set
# CONFIG_USB_GADGET_LH7A40X is not set
# CONFIG_USB_GADGET_OMAP is not set
# CONFIG_USB_GADGET_DUMMY_HCD is not set
# CONFIG_USB_GADGET_DUALSPEED is not set
#
# MMC/SD Card support
#
# CONFIG_MMC is not set
#
# File systems
#
CONFIG_EXT2_FS=y
CONFIG_EXT2_FS_XATTR=y
CONFIG_EXT2_FS_POSIX_ACL=y
CONFIG_EXT2_FS_SECURITY=y
# CONFIG_EXT2_FS_XIP is not set
# CONFIG_EXT3_FS is not set
# CONFIG_JBD is not set
CONFIG_FS_MBCACHE=y
# CONFIG_REISERFS_FS is not set
# CONFIG_JFS_FS is not set
CONFIG_FS_POSIX_ACL=y
# CONFIG_XFS_FS is not set
# CONFIG_MINIX_FS is not set
CONFIG_ROMFS_FS=y
CONFIG_INOTIFY=y
# CONFIG_QUOTA is not set
# CONFIG_DNOTIFY is not set
# CONFIG_AUTOFS_FS is not set
# CONFIG_AUTOFS4_FS is not set
# CONFIG_FUSE_FS is not set
#
# CD-ROM/DVD Filesystems
#
# CONFIG_ISO9660_FS is not set
# CONFIG_UDF_FS is not set
#
# DOS/FAT/NT Filesystems
#
CONFIG_FAT_FS=y
CONFIG_MSDOS_FS=y
CONFIG_VFAT_FS=y
CONFIG_FAT_DEFAULT_CODEPAGE=437
CONFIG_FAT_DEFAULT_IOCHARSET="iso8859-1"
# CONFIG_NTFS_FS is not set
#
# Pseudo filesystems
#
CONFIG_PROC_FS=y
CONFIG_SYSFS=y
CONFIG_TMPFS=y
# CONFIG_HUGETLBFS is not set
# CONFIG_HUGETLB_PAGE is not set
CONFIG_RAMFS=y
# CONFIG_RELAYFS_FS is not set
#
# Miscellaneous filesystems
#
# CONFIG_ADFS_FS is not set
# CONFIG_AFFS_FS is not set
# CONFIG_HFS_FS is not set
# CONFIG_HFSPLUS_FS is not set
# CONFIG_BEFS_FS is not set
# CONFIG_BFS_FS is not set
# CONFIG_EFS_FS is not set
# CONFIG_JFFS_FS is not set
CONFIG_JFFS2_FS=y
CONFIG_JFFS2_FS_DEBUG=0
CONFIG_JFFS2_FS_WRITEBUFFER=y
# CONFIG_JFFS2_COMPRESSION_OPTIONS is not set
CONFIG_JFFS2_ZLIB=y
CONFIG_JFFS2_RTIME=y
# CONFIG_JFFS2_RUBIN is not set
CONFIG_CRAMFS=y
# CONFIG_VXFS_FS is not set
# CONFIG_HPFS_FS is not set
# CONFIG_QNX4FS_FS is not set
# CONFIG_SYSV_FS is not set
# CONFIG_UFS_FS is not set
#
# Network File Systems
#
# CONFIG_NFS_FS is not set
# CONFIG_NFSD is not set
# CONFIG_SMB_FS is not set
# CONFIG_CIFS is not set
# CONFIG_NCP_FS is not set
# CONFIG_CODA_FS is not set
# CONFIG_AFS_FS is not set
# CONFIG_9P_FS is not set
#
# Partition Types
#
# CONFIG_PARTITION_ADVANCED is not set
CONFIG_MSDOS_PARTITION=y
#
# Native Language Support
#
CONFIG_NLS=y
CONFIG_NLS_DEFAULT="cp437"
CONFIG_NLS_CODEPAGE_437=m
# CONFIG_NLS_CODEPAGE_737 is not set
# CONFIG_NLS_CODEPAGE_775 is not set
# CONFIG_NLS_CODEPAGE_850 is not set
# CONFIG_NLS_CODEPAGE_852 is not set
# CONFIG_NLS_CODEPAGE_855 is not set
# CONFIG_NLS_CODEPAGE_857 is not set
# CONFIG_NLS_CODEPAGE_860 is not set
# CONFIG_NLS_CODEPAGE_861 is not set
# CONFIG_NLS_CODEPAGE_862 is not set
# CONFIG_NLS_CODEPAGE_863 is not set
# CONFIG_NLS_CODEPAGE_864 is not set
# CONFIG_NLS_CODEPAGE_865 is not set
# CONFIG_NLS_CODEPAGE_866 is not set
# CONFIG_NLS_CODEPAGE_869 is not set
# CONFIG_NLS_CODEPAGE_936 is not set
# CONFIG_NLS_CODEPAGE_950 is not set
# CONFIG_NLS_CODEPAGE_932 is not set
# 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_ASCII is not set
CONFIG_NLS_ISO8859_1=m
# CONFIG_NLS_ISO8859_2 is not set
# CONFIG_NLS_ISO8859_3 is not set
# CONFIG_NLS_ISO8859_4 is not set
# CONFIG_NLS_ISO8859_5 is not set
# CONFIG_NLS_ISO8859_6 is not set
# CONFIG_NLS_ISO8859_7 is not set
# CONFIG_NLS_ISO8859_9 is not set
# CONFIG_NLS_ISO8859_13 is not set
# CONFIG_NLS_ISO8859_14 is not set
# CONFIG_NLS_ISO8859_15 is not set
# CONFIG_NLS_KOI8_R is not set
# CONFIG_NLS_KOI8_U is not set
CONFIG_NLS_UTF8=m
#
# Profiling support
#
# CONFIG_PROFILING is not set
#
# Kernel hacking
#
# CONFIG_PRINTK_TIME is not set
CONFIG_DEBUG_KERNEL=y
CONFIG_MAGIC_SYSRQ=y
CONFIG_LOG_BUF_SHIFT=14
CONFIG_DETECT_SOFTLOCKUP=y
# CONFIG_SCHEDSTATS is not set
# CONFIG_DEBUG_SLAB is not set
CONFIG_DEBUG_PREEMPT=y
# CONFIG_DEBUG_SPINLOCK is not set
# CONFIG_DEBUG_SPINLOCK_SLEEP is not set
# CONFIG_DEBUG_KOBJECT is not set
# CONFIG_DEBUG_BUGVERBOSE is not set
# CONFIG_DEBUG_INFO is not set
# CONFIG_DEBUG_FS is not set
CONFIG_FRAME_POINTER=y
# CONFIG_DEBUG_USER is not set
# CONFIG_DEBUG_WAITQ is not set
CONFIG_DEBUG_ERRORS=y
# CONFIG_DEBUG_LL is not set
#
# Security options
#
# CONFIG_KEYS is not set
# CONFIG_SECURITY is not set
#
# Cryptographic options
#
# CONFIG_CRYPTO is not set
#
# Hardware crypto devices
#
#
# Library routines
#
# CONFIG_CRC_CCITT is not set
# CONFIG_CRC16 is not set
CONFIG_CRC32=y
# CONFIG_LIBCRC32C is not set
CONFIG_ZLIB_INFLATE=y
CONFIG_ZLIB_DEFLATE=y

1523
arch/arm/configs/corgi_defconfig Normal file
View File

File diff suppressed because it is too large Load Diff

1015
arch/arm/configs/poodle_defconfig Normal file
View File

File diff suppressed because it is too large Load Diff

1401
arch/arm/configs/spitz_defconfig Normal file
View File

File diff suppressed because it is too large Load Diff

4
arch/arm/kernel/armksyms.c
View File

@ -45,8 +45,8 @@ extern void fp_enter(void);
#define EXPORT_SYMBOL_ALIAS(sym,orig) \
EXPORT_CRC_ALIAS(sym) \
const struct kernel_symbol __ksymtab_##sym \
__attribute__((section("__ksymtab"))) = \
static const struct kernel_symbol __ksymtab_##sym \
__attribute_used__ __attribute__((section("__ksymtab"))) = \
{ (unsigned long)&orig, #sym };
/*

7
arch/arm/kernel/entry-common.S
View File

@ -106,15 +106,10 @@ ENTRY(ret_from_fork)
.endm
.Larm700bug:
ldr r0, [sp, #S_PSR] @ Get calling cpsr
sub lr, lr, #4
str lr, [r8]
msr spsr_cxsf, r0
ldmia sp, {r0 - lr}^ @ Get calling r0 - lr
mov r0, r0
ldr lr, [sp, #S_PC] @ Get PC
add sp, sp, #S_FRAME_SIZE
movs pc, lr
subs pc, lr, #4
#else
.macro arm710_bug_check, instr, temp
.endm

1
arch/arm/mach-pxa/corgi.c
View File

@ -36,6 +36,7 @@
#include <asm/arch/mmc.h>
#include <asm/arch/udc.h>
#include <asm/arch/corgi.h>
#include <asm/arch/sharpsl.h>
#include <asm/mach/sharpsl_param.h>
#include <asm/hardware/scoop.h>

2
arch/arm/mach-s3c2410/mach-anubis.c
View File

@ -125,7 +125,7 @@ static int external_map[] = { 2 };
static int chip0_map[] = { 0 };
static int chip1_map[] = { 1 };
struct mtd_partition anubis_default_nand_part[] = {
static struct mtd_partition anubis_default_nand_part[] = {
[0] = {
.name = "Boot Agent",
.size = SZ_16K,

4
arch/arm/mach-s3c2410/mach-bast.c
View File

@ -230,7 +230,7 @@ static int chip0_map[] = { 1 };
static int chip1_map[] = { 2 };
static int chip2_map[] = { 3 };
struct mtd_partition bast_default_nand_part[] = {
static struct mtd_partition bast_default_nand_part[] = {
[0] = {
.name = "Boot Agent",
.size = SZ_16K,
@ -340,7 +340,7 @@ static struct resource bast_dm9k_resource[] = {
* better IO routines can be written and tested
*/
struct dm9000_plat_data bast_dm9k_platdata = {
static struct dm9000_plat_data bast_dm9k_platdata = {
.flags = DM9000_PLATF_16BITONLY
};

2
arch/arm/mach-s3c2410/mach-vr1000.c
View File

@ -288,7 +288,7 @@ static struct resource vr1000_dm9k1_resource[] = {
* better IO routines can be written and tested
*/
struct dm9000_plat_data vr1000_dm9k_platdata = {
static struct dm9000_plat_data vr1000_dm9k_platdata = {
.flags = DM9000_PLATF_16BITONLY,
};

3
arch/arm/mach-s3c2410/s3c2410.c
View File

@ -125,9 +125,6 @@ static struct platform_device *uart_devices[] __initdata = {
&s3c_uart2
};
/* store our uart devices for the serial driver console */
struct platform_device *s3c2410_uart_devices[3];
static int s3c2410_uart_count = 0;
/* uart registration process */

4
arch/arm/mach-s3c2410/s3c2440.c
View File

@ -151,7 +151,7 @@ void __init s3c2440_init_uarts(struct s3c2410_uartcfg *cfg, int no)
#ifdef CONFIG_PM
struct sleep_save s3c2440_sleep[] = {
static struct sleep_save s3c2440_sleep[] = {
SAVE_ITEM(S3C2440_DSC0),
SAVE_ITEM(S3C2440_DSC1),
SAVE_ITEM(S3C2440_GPJDAT),
@ -260,7 +260,7 @@ void __init s3c2440_init_clocks(int xtal)
* as a driver which may support both 2410 and 2440 may try and use it.
*/
int __init s3c2440_core_init(void)
static int __init s3c2440_core_init(void)
{
return sysdev_class_register(&s3c2440_sysclass);
}

1
arch/arm/mach-s3c2410/time.c
View File

@ -38,6 +38,7 @@
#include <asm/hardware/clock.h>
#include "clock.h"
#include "cpu.h"
static unsigned long timer_startval;
static unsigned long timer_usec_ticks;

6
arch/arm/mach-sa1100/collie.c
View File

@ -111,11 +111,11 @@ static struct mtd_partition collie_partitions[] = {
static void collie_set_vpp(int vpp)
{
write_scoop_reg(&colliescoop_device.dev, SCOOP_GPCR, read_scoop_reg(SCOOP_GPCR) | COLLIE_SCP_VPEN);
write_scoop_reg(&colliescoop_device.dev, SCOOP_GPCR, read_scoop_reg(&colliescoop_device.dev, SCOOP_GPCR) | COLLIE_SCP_VPEN);
if (vpp)
write_scoop_reg(&colliescoop_device.dev, SCOOP_GPWR, read_scoop_reg(SCOOP_GPWR) | COLLIE_SCP_VPEN);
write_scoop_reg(&colliescoop_device.dev, SCOOP_GPWR, read_scoop_reg(&colliescoop_device.dev, SCOOP_GPWR) | COLLIE_SCP_VPEN);
else
write_scoop_reg(&colliescoop_device.dev, SCOOP_GPWR, read_scoop_reg(SCOOP_GPWR) & ~COLLIE_SCP_VPEN);
write_scoop_reg(&colliescoop_device.dev, SCOOP_GPWR, read_scoop_reg(&colliescoop_device.dev, SCOOP_GPWR) & ~COLLIE_SCP_VPEN);
}
static struct flash_platform_data collie_flash_data = {

8
arch/arm/mm/Kconfig
View File

@ -370,21 +370,21 @@ config CPU_BIG_ENDIAN
config CPU_ICACHE_DISABLE
bool "Disable I-Cache"
depends on CPU_ARM920T || CPU_ARM922T || CPU_ARM925T || CPU_ARM926T || CPU_ARM1020
depends on CPU_ARM920T || CPU_ARM922T || CPU_ARM925T || CPU_ARM926T || CPU_ARM1020 || CPU_V6
help
Say Y here to disable the processor instruction cache. Unless
you have a reason not to or are unsure, say N.
config CPU_DCACHE_DISABLE
bool "Disable D-Cache"
depends on CPU_ARM920T || CPU_ARM922T || CPU_ARM925T || CPU_ARM926T || CPU_ARM1020
depends on CPU_ARM920T || CPU_ARM922T || CPU_ARM925T || CPU_ARM926T || CPU_ARM1020 || CPU_V6
help
Say Y here to disable the processor data cache. Unless
you have a reason not to or are unsure, say N.
config CPU_DCACHE_WRITETHROUGH
bool "Force write through D-cache"
depends on (CPU_ARM920T || CPU_ARM922T || CPU_ARM925T || CPU_ARM926T || CPU_ARM1020) && !CPU_DCACHE_DISABLE
depends on (CPU_ARM920T || CPU_ARM922T || CPU_ARM925T || CPU_ARM926T || CPU_ARM1020 || CPU_V6) && !CPU_DCACHE_DISABLE
default y if CPU_ARM925T
help
Say Y here to use the data cache in writethrough mode. Unless you
@ -399,7 +399,7 @@ config CPU_CACHE_ROUND_ROBIN
config CPU_BPREDICT_DISABLE
bool "Disable branch prediction"
depends on CPU_ARM1020
depends on CPU_ARM1020 || CPU_V6
help
Say Y here to disable branch prediction. If unsure, say N.

55
arch/arm/mm/alignment.c
View File

@ -111,7 +111,7 @@ proc_alignment_read(char *page, char **start, off_t off, int count, int *eof,
}
static int proc_alignment_write(struct file *file, const char __user *buffer,
unsigned long count, void *data)
unsigned long count, void *data)
{
char mode;
@ -119,7 +119,7 @@ static int proc_alignment_write(struct file *file, const char __user *buffer,
if (get_user(mode, buffer))
return -EFAULT;
if (mode >= '0' && mode <= '5')
ai_usermode = mode - '0';
ai_usermode = mode - '0';
}
return count;
}
@ -262,7 +262,7 @@ union offset_union {
goto fault; \
} while (0)
#define put32_unaligned_check(val,addr) \
#define put32_unaligned_check(val,addr) \
__put32_unaligned_check("strb", val, addr)
#define put32t_unaligned_check(val,addr) \
@ -306,19 +306,19 @@ do_alignment_ldrhstrh(unsigned long addr, unsigned long instr, struct pt_regs *r
return TYPE_LDST;
user:
if (LDST_L_BIT(instr)) {
unsigned long val;
get16t_unaligned_check(val, addr);
if (LDST_L_BIT(instr)) {
unsigned long val;
get16t_unaligned_check(val, addr);
/* signed half-word? */
if (instr & 0x40)
val = (signed long)((signed short) val);
/* signed half-word? */
if (instr & 0x40)
val = (signed long)((signed short) val);
regs->uregs[rd] = val;
} else
put16t_unaligned_check(regs->uregs[rd], addr);
regs->uregs[rd] = val;
} else
put16t_unaligned_check(regs->uregs[rd], addr);
return TYPE_LDST;
return TYPE_LDST;
fault:
return TYPE_FAULT;
@ -330,6 +330,9 @@ do_alignment_ldrdstrd(unsigned long addr, unsigned long instr,
{
unsigned int rd = RD_BITS(instr);
if (((rd & 1) == 1) || (rd == 14))
goto bad;
ai_dword += 1;
if (user_mode(regs))
@ -339,11 +342,11 @@ do_alignment_ldrdstrd(unsigned long addr, unsigned long instr,
unsigned long val;
get32_unaligned_check(val, addr);
regs->uregs[rd] = val;
get32_unaligned_check(val, addr+4);
regs->uregs[rd+1] = val;
get32_unaligned_check(val, addr + 4);
regs->uregs[rd + 1] = val;
} else {
put32_unaligned_check(regs->uregs[rd], addr);
put32_unaligned_check(regs->uregs[rd+1], addr+4);
put32_unaligned_check(regs->uregs[rd + 1], addr + 4);
}
return TYPE_LDST;
@ -353,15 +356,16 @@ do_alignment_ldrdstrd(unsigned long addr, unsigned long instr,
unsigned long val;
get32t_unaligned_check(val, addr);
regs->uregs[rd] = val;
get32t_unaligned_check(val, addr+4);
regs->uregs[rd+1] = val;
get32t_unaligned_check(val, addr + 4);
regs->uregs[rd + 1] = val;
} else {
put32t_unaligned_check(regs->uregs[rd], addr);
put32t_unaligned_check(regs->uregs[rd+1], addr+4);
put32t_unaligned_check(regs->uregs[rd + 1], addr + 4);
}
return TYPE_LDST;
bad:
return TYPE_ERROR;
fault:
return TYPE_FAULT;
}
@ -439,7 +443,7 @@ do_alignment_ldmstm(unsigned long addr, unsigned long instr, struct pt_regs *reg
if (LDST_P_EQ_U(instr)) /* U = P */
eaddr += 4;
/*
/*
* For alignment faults on the ARM922T/ARM920T the MMU makes
* the FSR (and hence addr) equal to the updated base address
* of the multiple access rather than the restored value.
@ -566,7 +570,7 @@ thumb2arm(u16 tinstr)
/* 6.5.1 Format 3: */
case 0x4800 >> 11: /* 7.1.28 LDR(3) */
/* NOTE: This case is not technically possible. We're
* loading 32-bit memory data via PC relative
* loading 32-bit memory data via PC relative
* addressing mode. So we can and should eliminate
* this case. But I'll leave it here for now.
*/
@ -638,7 +642,7 @@ do_alignment(unsigned long addr, unsigned int fsr, struct pt_regs *regs)
if (fault) {
type = TYPE_FAULT;
goto bad_or_fault;
goto bad_or_fault;
}
if (user_mode(regs))
@ -663,6 +667,8 @@ do_alignment(unsigned long addr, unsigned int fsr, struct pt_regs *regs)
else if ((instr & 0x001000f0) == 0x000000d0 || /* LDRD */
(instr & 0x001000f0) == 0x000000f0) /* STRD */
handler = do_alignment_ldrdstrd;
else if ((instr & 0x01f00ff0) == 0x01000090) /* SWP */
goto swp;
else
goto bad;
break;
@ -733,6 +739,9 @@ do_alignment(unsigned long addr, unsigned int fsr, struct pt_regs *regs)
do_bad_area(current, current->mm, addr, fsr, regs);
return 0;
swp:
printk(KERN_ERR "Alignment trap: not handling swp instruction\n");
bad:
/*
* Oops, we didn't handle the instruction.

5
arch/arm/nwfpe/fpa11.c
View File

@ -31,11 +31,6 @@
#include <linux/string.h>
#include <asm/system.h>
/* forward declarations */
unsigned int EmulateCPDO(const unsigned int);
unsigned int EmulateCPDT(const unsigned int);
unsigned int EmulateCPRT(const unsigned int);
/* Reset the FPA11 chip. Called to initialize and reset the emulator. */
static void resetFPA11(void)
{

20
arch/arm/nwfpe/fpa11.h
View File

@ -95,4 +95,24 @@ extern int8 SetRoundingMode(const unsigned int);
extern int8 SetRoundingPrecision(const unsigned int);
extern void nwfpe_init_fpa(union fp_state *fp);
extern unsigned int EmulateAll(unsigned int opcode);
extern unsigned int EmulateCPDT(const unsigned int opcode);
extern unsigned int EmulateCPDO(const unsigned int opcode);
extern unsigned int EmulateCPRT(const unsigned int opcode);
/* fpa11_cpdt.c */
extern unsigned int PerformLDF(const unsigned int opcode);
extern unsigned int PerformSTF(const unsigned int opcode);
extern unsigned int PerformLFM(const unsigned int opcode);
extern unsigned int PerformSFM(const unsigned int opcode);
/* single_cpdo.c */
extern unsigned int SingleCPDO(struct roundingData *roundData,
const unsigned int opcode, FPREG * rFd);
/* double_cpdo.c */
extern unsigned int DoubleCPDO(struct roundingData *roundData,
const unsigned int opcode, FPREG * rFd);
#endif

3
arch/arm/nwfpe/fpa11_cprt.c
View File

@ -26,12 +26,11 @@
#include "fpa11.inl"
#include "fpmodule.h"
#include "fpmodule.inl"
#include "softfloat.h"
#ifdef CONFIG_FPE_NWFPE_XP
extern flag floatx80_is_nan(floatx80);
#endif
extern flag float64_is_nan(float64);
extern flag float32_is_nan(float32);
unsigned int PerformFLT(const unsigned int opcode);
unsigned int PerformFIX(const unsigned int opcode);

6
arch/arm/nwfpe/fpopcode.h
View File

@ -476,4 +476,10 @@ static inline unsigned int getDestinationSize(const unsigned int opcode)
return (nRc);
}
extern unsigned int checkCondition(const unsigned int opcode,
const unsigned int ccodes);
extern const float64 float64Constant[];
extern const float32 float32Constant[];
#endif

3
arch/arm/nwfpe/softfloat.h
View File

@ -265,4 +265,7 @@ static inline flag float64_lt_nocheck(float64 a, float64 b)
return (a != b) && (aSign ^ (a < b));
}
extern flag float32_is_nan( float32 a );
extern flag float64_is_nan( float64 a );
#endif

90
arch/arm/tools/mach-types
View File

@ -2,11 +2,17 @@
#
# This file is linux/arch/arm/tools/mach-types
#
# Up to date versions of this file can be obtained from:
#
# http://www.arm.linux.org.uk/developer/machines/?action=download
#
# Please do not send patches to this file; it is automatically generated!
# To add an entry into this database, please see Documentation/arm/README,
# or contact rmk@arm.linux.org.uk
# or visit:
#
# Last update: Thu Jun 23 20:19:33 2005
# http://www.arm.linux.org.uk/developer/machines/?action=new
#
# Last update: Mon Oct 10 09:46:25 2005
#
# machine_is_xxx CONFIG_xxxx MACH_TYPE_xxx number
#
@ -421,7 +427,7 @@ mt02 MACH_MT02 MT02 410
mport3s MACH_MPORT3S MPORT3S 411
ra_alpha MACH_RA_ALPHA RA_ALPHA 412
xcep MACH_XCEP XCEP 413
arcom_mercury MACH_ARCOM_MERCURY ARCOM_MERCURY 414
arcom_vulcan MACH_ARCOM_VULCAN ARCOM_VULCAN 414
stargate MACH_STARGATE STARGATE 415
armadilloj MACH_ARMADILLOJ ARMADILLOJ 416
elroy_jack MACH_ELROY_JACK ELROY_JACK 417
@ -454,7 +460,7 @@ esl_sarva MACH_ESL_SARVA ESL_SARVA 443
xm250 MACH_XM250 XM250 444
t6tc1xb MACH_T6TC1XB T6TC1XB 445
ess710 MACH_ESS710 ESS710 446
mx3ads MACH_MX3ADS MX3ADS 447
mx31ads MACH_MX3ADS MX3ADS 447
himalaya MACH_HIMALAYA HIMALAYA 448
bolfenk MACH_BOLFENK BOLFENK 449
at91rm9200kr MACH_AT91RM9200KR AT91RM9200KR 450
@ -787,3 +793,79 @@ ez_ixp42x MACH_EZ_IXP42X EZ_IXP42X 778
tapwave_zodiac MACH_TAPWAVE_ZODIAC TAPWAVE_ZODIAC 779
universalmeter MACH_UNIVERSALMETER UNIVERSALMETER 780
hicoarm9 MACH_HICOARM9 HICOARM9 781
pnx4008 MACH_PNX4008 PNX4008 782
kws6000 MACH_KWS6000 KWS6000 783
portux920t MACH_PORTUX920T PORTUX920T 784
ez_x5 MACH_EZ_X5 EZ_X5 785
omap_rudolph MACH_OMAP_RUDOLPH OMAP_RUDOLPH 786
cpuat91 MACH_CPUAT91 CPUAT91 787
rea9200 MACH_REA9200 REA9200 788
acts_pune_sa1110 MACH_ACTS_PUNE_SA1110 ACTS_PUNE_SA1110 789
ixp425 MACH_IXP425 IXP425 790
argonplusodyssey MACH_ODYSSEY ODYSSEY 791
perch MACH_PERCH PERCH 792
eis05r1 MACH_EIS05R1 EIS05R1 793
pepperpad MACH_PEPPERPAD PEPPERPAD 794
sb3010 MACH_SB3010 SB3010 795
rm9200 MACH_RM9200 RM9200 796
dma03 MACH_DMA03 DMA03 797
road_s101 MACH_ROAD_S101 ROAD_S101 798
iq_nextgen_a MACH_IQ_NEXTGEN_A IQ_NEXTGEN_A 799
iq_nextgen_b MACH_IQ_NEXTGEN_B IQ_NEXTGEN_B 800
iq_nextgen_c MACH_IQ_NEXTGEN_C IQ_NEXTGEN_C 801
iq_nextgen_d MACH_IQ_NEXTGEN_D IQ_NEXTGEN_D 802
iq_nextgen_e MACH_IQ_NEXTGEN_E IQ_NEXTGEN_E 803
mallow_at91 MACH_MALLOW_AT91 MALLOW_AT91 804
cybertracker MACH_CYBERTRACKER CYBERTRACKER 805
gesbc931x MACH_GESBC931X GESBC931X 806
centipad MACH_CENTIPAD CENTIPAD 807
armsoc MACH_ARMSOC ARMSOC 808
se4200 MACH_SE4200 SE4200 809
ems197a MACH_EMS197A EMS197A 810
micro9 MACH_MICRO9 MICRO9 811
micro9l MACH_MICRO9L MICRO9L 812
uc5471dsp MACH_UC5471DSP UC5471DSP 813
sj5471eng MACH_SJ5471ENG SJ5471ENG 814
none MACH_CMPXA26X CMPXA26X 815
nc MACH_NC NC 816
omap_palmte MACH_OMAP_PALMTE OMAP_PALMTE 817
ajax52x MACH_AJAX52X AJAX52X 818
siriustar MACH_SIRIUSTAR SIRIUSTAR 819
iodata_hdlg MACH_IODATA_HDLG IODATA_HDLG 820
at91rm9200utl MACH_AT91RM9200UTL AT91RM9200UTL 821
biosafe MACH_BIOSAFE BIOSAFE 822
mp1000 MACH_MP1000 MP1000 823
parsy MACH_PARSY PARSY 824
ccxp270 MACH_CCXP CCXP 825
omap_gsample MACH_OMAP_GSAMPLE OMAP_GSAMPLE 826
realview_eb MACH_REALVIEW_EB REALVIEW_EB 827
samoa MACH_SAMOA SAMOA 828
t3xscale MACH_T3XSCALE T3XSCALE 829
i878 MACH_I878 I878 830
borzoi MACH_BORZOI BORZOI 831
gecko MACH_GECKO GECKO 832
ds101 MACH_DS101 DS101 833
omap_palmtt2 MACH_OMAP_PALMTT2 OMAP_PALMTT2 834
xscale_palmld MACH_XSCALE_PALMLD XSCALE_PALMLD 835
cc9c MACH_CC9C CC9C 836
sbc1670 MACH_SBC1670 SBC1670 837
ixdp28x5 MACH_IXDP28X5 IXDP28X5 838
omap_palmtt MACH_OMAP_PALMTT OMAP_PALMTT 839
ml696k MACH_ML696K ML696K 840
arcom_zeus MACH_ARCOM_ZEUS ARCOM_ZEUS 841
osiris MACH_OSIRIS OSIRIS 842
maestro MACH_MAESTRO MAESTRO 843
tunge2 MACH_TUNGE2 TUNGE2 844
ixbbm MACH_IXBBM IXBBM 845
mx27 MACH_MX27 MX27 846
ax8004 MACH_AX8004 AX8004 847
at91sam9261ek MACH_AT91SAM9261EK AT91SAM9261EK 848
loft MACH_LOFT LOFT 849
magpie MACH_MAGPIE MAGPIE 850
mx21 MACH_MX21 MX21 851
mb87m3400 MACH_MB87M3400 MB87M3400 852
mguard_delta MACH_MGUARD_DELTA MGUARD_DELTA 853
davinci_dvdp MACH_DAVINCI_DVDP DAVINCI_DVDP 854
htcuniversal MACH_HTCUNIVERSAL HTCUNIVERSAL 855
tpad MACH_TPAD TPAD 856
roverp3 MACH_ROVERP3 ROVERP3 857

2
arch/cris/arch-v32/drivers/pci/dma.c
View File

@ -24,7 +24,7 @@ struct dma_coherent_mem {
};
void *dma_alloc_coherent(struct device *dev, size_t size,
dma_addr_t *dma_handle, unsigned int __nocast gfp)
dma_addr_t *dma_handle, gfp_t gfp)
{
void *ret;
struct dma_coherent_mem *mem = dev ? dev->dma_mem : NULL;

2
arch/cris/arch-v32/kernel/smp.c
View File

@ -15,6 +15,7 @@
#include <linux/kernel.h>
#include <linux/cpumask.h>
#include <linux/interrupt.h>
#include <linux/module.h>
#define IPI_SCHEDULE 1
#define IPI_CALL 2
@ -28,6 +29,7 @@ spinlock_t cris_atomic_locks[] = { [0 ... LOCK_COUNT - 1] = SPIN_LOCK_UNLOCKED};
/* CPU masks */
cpumask_t cpu_online_map = CPU_MASK_NONE;
cpumask_t phys_cpu_present_map = CPU_MASK_NONE;
EXPORT_SYMBOL(phys_cpu_present_map);
/* Variables used during SMP boot */
volatile int cpu_now_booting = 0;

2
arch/i386/kernel/cpu/amd.c
View File

@ -29,7 +29,7 @@ static void __init init_amd(struct cpuinfo_x86 *c)
int r;
#ifdef CONFIG_SMP
unsigned long value;
unsigned long long value;
/* Disable TLB flush filter by setting HWCR.FFDIS on K8
* bit 6 of msr C001_0015

2
arch/i386/kernel/pci-dma.c
View File

@ -23,7 +23,7 @@ struct dma_coherent_mem {
};
void *dma_alloc_coherent(struct device *dev, size_t size,
dma_addr_t *dma_handle, unsigned int __nocast gfp)
dma_addr_t *dma_handle, gfp_t gfp)
{
void *ret;
struct dma_coherent_mem *mem = dev ? dev->dma_mem : NULL;

6
arch/i386/kernel/signal.c
View File

@ -338,7 +338,11 @@ get_sigframe(struct k_sigaction *ka, struct pt_regs * regs, size_t frame_size)
esp = (unsigned long) ka->sa.sa_restorer;
}
return (void __user *)((esp - frame_size) & -8ul);
esp -= frame_size;
/* Align the stack pointer according to the i386 ABI,
* i.e. so that on function entry ((sp + 4) & 15) == 0. */
esp = ((esp + 4) & -16ul) - 4;
return (void __user *) esp;
}
/* These symbols are defined with the addresses in the vsyscall page.

5
arch/ia64/kernel/mca.c
View File

@ -1016,6 +1016,11 @@ ia64_mca_cmc_int_handler(int cmc_irq, void *arg, struct pt_regs *ptregs)
cmc_polling_enabled = 1;
spin_unlock(&cmc_history_lock);
/* If we're being hit with CMC interrupts, we won't
* ever execute the schedule_work() below. Need to
* disable CMC interrupts on this processor now.
*/
ia64_mca_cmc_vector_disable(NULL);
schedule_work(&cmc_disable_work);
/*

9
arch/m32r/kernel/entry.S
View File

@ -681,6 +681,15 @@ ENTRY(debug_trap)
bl do_debug_trap
bra error_code
ENTRY(ill_trap)
/* void ill_trap(void) */
SWITCH_TO_KERNEL_STACK
SAVE_ALL
ldi r1, #0 ; error_code ; FIXME
mv r0, sp ; pt_regs
bl do_ill_trap
bra error_code
/* Cache flushing handler */
ENTRY(cache_flushing_handler)

33
arch/m32r/kernel/traps.c
View File

@ -5,8 +5,6 @@
* Hitoshi Yamamoto
*/
/* $Id$ */
/*
* 'traps.c' handles hardware traps and faults after we have saved some
* state in 'entry.S'.
@ -35,6 +33,7 @@ asmlinkage void ei_handler(void);
asmlinkage void rie_handler(void);
asmlinkage void debug_trap(void);
asmlinkage void cache_flushing_handler(void);
asmlinkage void ill_trap(void);
#ifdef CONFIG_SMP
extern void smp_reschedule_interrupt(void);
@ -77,22 +76,22 @@ void set_eit_vector_entries(void)
eit_vector[5] = BRA_INSN(default_eit_handler, 5);
eit_vector[8] = BRA_INSN(rie_handler, 8);
eit_vector[12] = BRA_INSN(alignment_check, 12);
eit_vector[16] = 0xff000000UL;
eit_vector[16] = BRA_INSN(ill_trap, 16);
eit_vector[17] = BRA_INSN(debug_trap, 17);
eit_vector[18] = BRA_INSN(system_call, 18);
eit_vector[19] = 0xff000000UL;
eit_vector[20] = 0xff000000UL;
eit_vector[21] = 0xff000000UL;
eit_vector[22] = 0xff000000UL;
eit_vector[23] = 0xff000000UL;
eit_vector[24] = 0xff000000UL;
eit_vector[25] = 0xff000000UL;
eit_vector[26] = 0xff000000UL;
eit_vector[27] = 0xff000000UL;
eit_vector[19] = BRA_INSN(ill_trap, 19);
eit_vector[20] = BRA_INSN(ill_trap, 20);
eit_vector[21] = BRA_INSN(ill_trap, 21);
eit_vector[22] = BRA_INSN(ill_trap, 22);
eit_vector[23] = BRA_INSN(ill_trap, 23);
eit_vector[24] = BRA_INSN(ill_trap, 24);
eit_vector[25] = BRA_INSN(ill_trap, 25);
eit_vector[26] = BRA_INSN(ill_trap, 26);
eit_vector[27] = BRA_INSN(ill_trap, 27);
eit_vector[28] = BRA_INSN(cache_flushing_handler, 28);
eit_vector[29] = 0xff000000UL;
eit_vector[30] = 0xff000000UL;
eit_vector[31] = 0xff000000UL;
eit_vector[29] = BRA_INSN(ill_trap, 29);
eit_vector[30] = BRA_INSN(ill_trap, 30);
eit_vector[31] = BRA_INSN(ill_trap, 31);
eit_vector[32] = BRA_INSN(ei_handler, 32);
eit_vector[64] = BRA_INSN(pie_handler, 64);
#ifdef CONFIG_MMU
@ -286,7 +285,8 @@ asmlinkage void do_##name(struct pt_regs * regs, long error_code) \
DO_ERROR( 1, SIGTRAP, "debug trap", debug_trap)
DO_ERROR_INFO(0x20, SIGILL, "reserved instruction ", rie_handler, ILL_ILLOPC, regs->bpc)
DO_ERROR_INFO(0x100, SIGILL, "privilege instruction", pie_handler, ILL_PRVOPC, regs->bpc)
DO_ERROR_INFO(0x100, SIGILL, "privileged instruction", pie_handler, ILL_PRVOPC, regs->bpc)
DO_ERROR_INFO(-1, SIGILL, "illegal trap", ill_trap, ILL_ILLTRP, regs->bpc)
extern int handle_unaligned_access(unsigned long, struct pt_regs *);
@ -329,4 +329,3 @@ asmlinkage void do_alignment_check(struct pt_regs *regs, long error_code)
set_fs(oldfs);
}
}

5
arch/ppc/kernel/cputable.c
View File

@ -91,7 +91,7 @@ struct cpu_spec cpu_specs[] = {
.cpu_features = CPU_FTR_COMMON | CPU_FTR_601 |
CPU_FTR_HPTE_TABLE,
.cpu_user_features = COMMON_PPC | PPC_FEATURE_601_INSTR |
PPC_FEATURE_UNIFIED_CACHE,
PPC_FEATURE_UNIFIED_CACHE | PPC_FEATURE_NO_TB,
.icache_bsize = 32,
.dcache_bsize = 32,
.cpu_setup = __setup_cpu_601
@ -745,7 +745,8 @@ struct cpu_spec cpu_specs[] = {
.cpu_name = "403GCX",
.cpu_features = CPU_FTR_SPLIT_ID_CACHE |
CPU_FTR_USE_TB,
.cpu_user_features = PPC_FEATURE_32 | PPC_FEATURE_HAS_MMU,
.cpu_user_features = PPC_FEATURE_32 |
PPC_FEATURE_HAS_MMU | PPC_FEATURE_NO_TB,
.icache_bsize = 16,
.dcache_bsize = 16,
},

4
arch/ppc/kernel/dma-mapping.c
View File

@ -401,10 +401,10 @@ EXPORT_SYMBOL(__dma_sync);
static inline void __dma_sync_page_highmem(struct page *page,
unsigned long offset, size_t size, int direction)
{
size_t seg_size = min((size_t)PAGE_SIZE, size) - offset;
size_t seg_size = min((size_t)(PAGE_SIZE - offset), size);
size_t cur_size = seg_size;
unsigned long flags, start, seg_offset = offset;
int nr_segs = PAGE_ALIGN(size + (PAGE_SIZE - offset))/PAGE_SIZE;
int nr_segs = 1 + ((size - seg_size) + PAGE_SIZE - 1)/PAGE_SIZE;
int seg_nr = 0;
local_irq_save(flags);

2
arch/ppc/platforms/pmac_time.c
View File

@ -195,7 +195,7 @@ via_calibrate_decr(void)
;
dend = get_dec();
tb_ticks_per_jiffy = (dstart - dend) / (6 * (HZ/100));
tb_ticks_per_jiffy = (dstart - dend) / ((6 * HZ)/100);
tb_to_us = mulhwu_scale_factor(dstart - dend, 60000);
printk(KERN_INFO "via_calibrate_decr: ticks per jiffy = %u (%u ticks)\n",

2
arch/ppc64/kernel/bpa_iommu.c
View File

@ -310,7 +310,7 @@ static void bpa_map_iommu(void)
static void *bpa_alloc_coherent(struct device *hwdev, size_t size,
dma_addr_t *dma_handle, unsigned int __nocast flag)
dma_addr_t *dma_handle, gfp_t flag)
{
void *ret;

2
arch/ppc64/kernel/dma.c
View File

@ -53,7 +53,7 @@ int dma_set_mask(struct device *dev, u64 dma_mask)
EXPORT_SYMBOL(dma_set_mask);
void *dma_alloc_coherent(struct device *dev, size_t size,
dma_addr_t *dma_handle, unsigned int __nocast flag)
dma_addr_t *dma_handle, gfp_t flag)
{
struct dma_mapping_ops *dma_ops = get_dma_ops(dev);

2
arch/ppc64/kernel/iommu.c
View File

@ -519,7 +519,7 @@ void iommu_unmap_single(struct iommu_table *tbl, dma_addr_t dma_handle,
* to the dma address (mapping) of the first page.
*/
void *iommu_alloc_coherent(struct iommu_table *tbl, size_t size,
dma_addr_t *dma_handle, unsigned int __nocast flag)
dma_addr_t *dma_handle, gfp_t flag)
{
void *ret = NULL;
dma_addr_t mapping;

13
arch/ppc64/kernel/module.c
View File

@ -341,6 +341,19 @@ int apply_relocate_add(Elf64_Shdr *sechdrs,
*(unsigned long *)location = my_r2(sechdrs, me);
break;
case R_PPC64_TOC16:
/* Subtact TOC pointer */
value -= my_r2(sechdrs, me);
if (value + 0x8000 > 0xffff) {
printk("%s: bad TOC16 relocation (%lu)\n",
me->name, value);
return -ENOEXEC;
}
*((uint16_t *) location)
= (*((uint16_t *) location) & ~0xffff)
| (value & 0xffff);
break;
case R_PPC64_TOC16_DS:
/* Subtact TOC pointer */
value -= my_r2(sechdrs, me);

4
arch/ppc64/kernel/pSeries_pci.c
View File

@ -32,7 +32,7 @@
#include "pci.h"
static int __initdata s7a_workaround = -1;
static int __devinitdata s7a_workaround = -1;
#if 0
void pcibios_name_device(struct pci_dev *dev)
@ -60,7 +60,7 @@ void pcibios_name_device(struct pci_dev *dev)
DECLARE_PCI_FIXUP_HEADER(PCI_ANY_ID, PCI_ANY_ID, pcibios_name_device);
#endif
static void __init check_s7a(void)
static void __devinit check_s7a(void)
{
struct device_node *root;
char *model;

2
arch/ppc64/kernel/pci_direct_iommu.c
View File

@ -31,7 +31,7 @@
#include "pci.h"
static void *pci_direct_alloc_coherent(struct device *hwdev, size_t size,
dma_addr_t *dma_handle, unsigned int __nocast flag)
dma_addr_t *dma_handle, gfp_t flag)
{
void *ret;

2
arch/ppc64/kernel/pci_iommu.c
View File

@ -76,7 +76,7 @@ static inline struct iommu_table *devnode_table(struct device *dev)
* to the dma address (mapping) of the first page.
*/
static void *pci_iommu_alloc_coherent(struct device *hwdev, size_t size,
dma_addr_t *dma_handle, unsigned int __nocast flag)
dma_addr_t *dma_handle, gfp_t flag)
{
return iommu_alloc_coherent(devnode_table(hwdev), size, dma_handle,
flag);

2
arch/ppc64/kernel/vio.c
View File

@ -218,7 +218,7 @@ static void vio_unmap_sg(struct device *dev, struct scatterlist *sglist,
}
static void *vio_alloc_coherent(struct device *dev, size_t size,
dma_addr_t *dma_handle, unsigned int __nocast flag)
dma_addr_t *dma_handle, gfp_t flag)
{
return iommu_alloc_coherent(to_vio_dev(dev)->iommu_table, size,
dma_handle, flag);

3
arch/sh/kernel/smp.c
View File

@ -22,6 +22,7 @@
#include <linux/time.h>
#include <linux/timex.h>
#include <linux/sched.h>
#include <linux/module.h>
#include <asm/atomic.h>
#include <asm/processor.h>
@ -39,6 +40,8 @@ struct sh_cpuinfo cpu_data[NR_CPUS];
extern void per_cpu_trap_init(void);
cpumask_t cpu_possible_map;
EXPORT_SYMBOL(cpu_possible_map);
cpumask_t cpu_online_map;
static atomic_t cpus_booted = ATOMIC_INIT(0);

56
arch/sparc/Kconfig
View File

@ -25,62 +25,6 @@ source "init/Kconfig"
menu "General machine setup"
config VT
bool
select INPUT
default y
---help---
If you say Y here, you will get support for terminal devices with
display and keyboard devices. These are called "virtual" because you
can run several virtual terminals (also called virtual consoles) on
one physical terminal. This is rather useful, for example one
virtual terminal can collect system messages and warnings, another
one can be used for a text-mode user session, and a third could run
an X session, all in parallel. Switching between virtual terminals
is done with certain key combinations, usually Alt-<function key>.
The setterm command ("man setterm") can be used to change the
properties (such as colors or beeping) of a virtual terminal. The
man page console_codes(4) ("man console_codes") contains the special
character sequences that can be used to change those properties
directly. The fonts used on virtual terminals can be changed with
the setfont ("man setfont") command and the key bindings are defined
with the loadkeys ("man loadkeys") command.
You need at least one virtual terminal device in order to make use
of your keyboard and monitor. Therefore, only people configuring an
embedded system would want to say N here in order to save some
memory; the only way to log into such a system is then via a serial
or network connection.
If unsure, say Y, or else you won't be able to do much with your new
shiny Linux system :-)
config VT_CONSOLE
bool
default y
---help---
The system console is the device which receives all kernel messages
and warnings and which allows logins in single user mode. If you
answer Y here, a virtual terminal (the device used to interact with
a physical terminal) can be used as system console. This is the most
common mode of operations, so you should say Y here unless you want
the kernel messages be output only to a serial port (in which case
you should say Y to "Console on serial port", below).
If you do say Y here, by default the currently visible virtual
terminal (/dev/tty0) will be used as system console. You can change
that with a kernel command line option such as "console=tty3" which
would use the third virtual terminal as system console. (Try "man
bootparam" or see the documentation of your boot loader (lilo or
loadlin) about how to pass options to the kernel at boot time.)
If unsure, say Y.
config HW_CONSOLE
bool
default y
config SMP
bool "Symmetric multi-processing support (does not work on sun4/sun4c)"
depends on BROKEN

14
arch/sparc64/kernel/dtlb_base.S
View File

@ -53,19 +53,18 @@
* be guaranteed to be 0 ... mmu_context.h does guarantee this
* by only using 10 bits in the hwcontext value.
*/
#define CREATE_VPTE_OFFSET1(r1, r2)
#define CREATE_VPTE_OFFSET1(r1, r2) nop
#define CREATE_VPTE_OFFSET2(r1, r2) \
srax r1, 10, r2
#define CREATE_VPTE_NOP nop
#else
#define CREATE_VPTE_OFFSET1(r1, r2) \
srax r1, PAGE_SHIFT, r2
#define CREATE_VPTE_OFFSET2(r1, r2) \
sllx r2, 3, r2
#define CREATE_VPTE_NOP
#endif
/* DTLB ** ICACHE line 1: Quick user TLB misses */
mov TLB_SFSR, %g1
ldxa [%g1 + %g1] ASI_DMMU, %g4 ! Get TAG_ACCESS
andcc %g4, TAG_CONTEXT_BITS, %g0 ! From Nucleus?
from_tl1_trap:
@ -74,18 +73,16 @@ from_tl1_trap:
be,pn %xcc, kvmap ! Yep, special processing
CREATE_VPTE_OFFSET2(%g4, %g6) ! Create VPTE offset
cmp %g5, 4 ! Last trap level?
be,pn %xcc, longpath ! Yep, cannot risk VPTE miss
nop ! delay slot
/* DTLB ** ICACHE line 2: User finish + quick kernel TLB misses */
be,pn %xcc, longpath ! Yep, cannot risk VPTE miss
nop ! delay slot
ldxa [%g3 + %g6] ASI_S, %g5 ! Load VPTE
1: brgez,pn %g5, longpath ! Invalid, branch out
nop ! Delay-slot
9: stxa %g5, [%g0] ASI_DTLB_DATA_IN ! Reload TLB
retry ! Trap return
nop
nop
nop
/* DTLB ** ICACHE line 3: winfixups+real_faults */
longpath:
@ -106,8 +103,7 @@ longpath:
nop
nop
nop
CREATE_VPTE_NOP
nop
#undef CREATE_VPTE_OFFSET1
#undef CREATE_VPTE_OFFSET2
#undef CREATE_VPTE_NOP

12
arch/sparc64/kernel/dtlb_prot.S
View File

@ -14,14 +14,14 @@
*/
/* PROT ** ICACHE line 1: User DTLB protection trap */
stxa %g0, [%g1] ASI_DMMU ! Clear SFSR FaultValid bit
membar #Sync ! Synchronize ASI stores
rdpr %pstate, %g5 ! Move into alternate globals
mov TLB_SFSR, %g1
stxa %g0, [%g1] ASI_DMMU ! Clear FaultValid bit
membar #Sync ! Synchronize stores
rdpr %pstate, %g5 ! Move into alt-globals
wrpr %g5, PSTATE_AG|PSTATE_MG, %pstate
rdpr %tl, %g1 ! Need to do a winfixup?
rdpr %tl, %g1 ! Need a winfixup?
cmp %g1, 1 ! Trap level >1?
mov TLB_TAG_ACCESS, %g4 ! Prepare reload of vaddr
nop
mov TLB_TAG_ACCESS, %g4 ! For reload of vaddr
/* PROT ** ICACHE line 2: More real fault processing */
bgu,pn %xcc, winfix_trampoline ! Yes, perform winfixup

82
arch/sparc64/kernel/entry.S
View File

@ -33,7 +33,7 @@
/* This is trivial with the new code... */
.globl do_fpdis
do_fpdis:
sethi %hi(TSTATE_PEF), %g4 ! IEU0
sethi %hi(TSTATE_PEF), %g4
rdpr %tstate, %g5
andcc %g5, %g4, %g0
be,pt %xcc, 1f
@ -50,18 +50,18 @@ do_fpdis:
add %g0, %g0, %g0
ba,a,pt %xcc, rtrap_clr_l6
1: ldub [%g6 + TI_FPSAVED], %g5 ! Load Group
wr %g0, FPRS_FEF, %fprs ! LSU Group+4bubbles
andcc %g5, FPRS_FEF, %g0 ! IEU1 Group
be,a,pt %icc, 1f ! CTI
clr %g7 ! IEU0
ldx [%g6 + TI_GSR], %g7 ! Load Group
1: andcc %g5, FPRS_DL, %g0 ! IEU1
bne,pn %icc, 2f ! CTI
fzero %f0 ! FPA
andcc %g5, FPRS_DU, %g0 ! IEU1 Group
bne,pn %icc, 1f ! CTI
fzero %f2 ! FPA
1: ldub [%g6 + TI_FPSAVED], %g5
wr %g0, FPRS_FEF, %fprs
andcc %g5, FPRS_FEF, %g0
be,a,pt %icc, 1f
clr %g7
ldx [%g6 + TI_GSR], %g7
1: andcc %g5, FPRS_DL, %g0
bne,pn %icc, 2f
fzero %f0
andcc %g5, FPRS_DU, %g0
bne,pn %icc, 1f
fzero %f2
faddd %f0, %f2, %f4
fmuld %f0, %f2, %f6
faddd %f0, %f2, %f8
@ -97,15 +97,17 @@ do_fpdis:
faddd %f0, %f2, %f4
fmuld %f0, %f2, %f6
ldxa [%g3] ASI_DMMU, %g5
cplus_fptrap_insn_1:
sethi %hi(0), %g2
sethi %hi(sparc64_kern_sec_context), %g2
ldx [%g2 + %lo(sparc64_kern_sec_context)], %g2
stxa %g2, [%g3] ASI_DMMU
membar #Sync
add %g6, TI_FPREGS + 0xc0, %g2
faddd %f0, %f2, %f8
fmuld %f0, %f2, %f10
ldda [%g1] ASI_BLK_S, %f32 ! grrr, where is ASI_BLK_NUCLEUS 8-(
membar #Sync
ldda [%g1] ASI_BLK_S, %f32
ldda [%g2] ASI_BLK_S, %f48
membar #Sync
faddd %f0, %f2, %f12
fmuld %f0, %f2, %f14
faddd %f0, %f2, %f16
@ -116,7 +118,6 @@ cplus_fptrap_insn_1:
fmuld %f0, %f2, %f26
faddd %f0, %f2, %f28
fmuld %f0, %f2, %f30
membar #Sync
b,pt %xcc, fpdis_exit
nop
2: andcc %g5, FPRS_DU, %g0
@ -126,15 +127,17 @@ cplus_fptrap_insn_1:
fzero %f34
ldxa [%g3] ASI_DMMU, %g5
add %g6, TI_FPREGS, %g1
cplus_fptrap_insn_2:
sethi %hi(0), %g2
sethi %hi(sparc64_kern_sec_context), %g2
ldx [%g2 + %lo(sparc64_kern_sec_context)], %g2
stxa %g2, [%g3] ASI_DMMU
membar #Sync
add %g6, TI_FPREGS + 0x40, %g2
faddd %f32, %f34, %f36
fmuld %f32, %f34, %f38
ldda [%g1] ASI_BLK_S, %f0 ! grrr, where is ASI_BLK_NUCLEUS 8-(
membar #Sync
ldda [%g1] ASI_BLK_S, %f0
ldda [%g2] ASI_BLK_S, %f16
membar #Sync
faddd %f32, %f34, %f40
fmuld %f32, %f34, %f42
faddd %f32, %f34, %f44
@ -147,18 +150,18 @@ cplus_fptrap_insn_2:
fmuld %f32, %f34, %f58
faddd %f32, %f34, %f60
fmuld %f32, %f34, %f62
membar #Sync
ba,pt %xcc, fpdis_exit
nop
3: mov SECONDARY_CONTEXT, %g3
add %g6, TI_FPREGS, %g1
ldxa [%g3] ASI_DMMU, %g5
cplus_fptrap_insn_3:
sethi %hi(0), %g2
sethi %hi(sparc64_kern_sec_context), %g2
ldx [%g2 + %lo(sparc64_kern_sec_context)], %g2
stxa %g2, [%g3] ASI_DMMU
membar #Sync
mov 0x40, %g2
ldda [%g1] ASI_BLK_S, %f0 ! grrr, where is ASI_BLK_NUCLEUS 8-(
membar #Sync
ldda [%g1] ASI_BLK_S, %f0
ldda [%g1 + %g2] ASI_BLK_S, %f16
add %g1, 0x80, %g1
ldda [%g1] ASI_BLK_S, %f32
@ -319,8 +322,8 @@ do_fptrap_after_fsr:
stx %g3, [%g6 + TI_GSR]
mov SECONDARY_CONTEXT, %g3
ldxa [%g3] ASI_DMMU, %g5
cplus_fptrap_insn_4:
sethi %hi(0), %g2
sethi %hi(sparc64_kern_sec_context), %g2
ldx [%g2 + %lo(sparc64_kern_sec_context)], %g2
stxa %g2, [%g3] ASI_DMMU
membar #Sync
add %g6, TI_FPREGS, %g2
@ -341,33 +344,6 @@ cplus_fptrap_insn_4:
ba,pt %xcc, etrap
wr %g0, 0, %fprs
cplus_fptrap_1:
sethi %hi(CTX_CHEETAH_PLUS_CTX0), %g2
.globl cheetah_plus_patch_fpdis
cheetah_plus_patch_fpdis:
/* We configure the dTLB512_0 for 4MB pages and the
* dTLB512_1 for 8K pages when in context zero.
*/
sethi %hi(cplus_fptrap_1), %o0
lduw [%o0 + %lo(cplus_fptrap_1)], %o1
set cplus_fptrap_insn_1, %o2
stw %o1, [%o2]
flush %o2
set cplus_fptrap_insn_2, %o2
stw %o1, [%o2]
flush %o2
set cplus_fptrap_insn_3, %o2
stw %o1, [%o2]
flush %o2
set cplus_fptrap_insn_4, %o2
stw %o1, [%o2]
flush %o2
retl
nop
/* The registers for cross calls will be:
*
* DATA 0: [low 32-bits] Address of function to call, jmp to this

51
arch/sparc64/kernel/etrap.S
View File

@ -68,12 +68,8 @@ etrap_irq:
wrpr %g3, 0, %otherwin
wrpr %g2, 0, %wstate
cplus_etrap_insn_1:
sethi %hi(0), %g3
sllx %g3, 32, %g3
cplus_etrap_insn_2:
sethi %hi(0), %g2
or %g3, %g2, %g3
sethi %hi(sparc64_kern_pri_context), %g2
ldx [%g2 + %lo(sparc64_kern_pri_context)], %g3
stxa %g3, [%l4] ASI_DMMU
flush %l6
wr %g0, ASI_AIUS, %asi
@ -215,12 +211,8 @@ scetrap: rdpr %pil, %g2
mov PRIMARY_CONTEXT, %l4
wrpr %g3, 0, %otherwin
wrpr %g2, 0, %wstate
cplus_etrap_insn_3:
sethi %hi(0), %g3
sllx %g3, 32, %g3
cplus_etrap_insn_4:
sethi %hi(0), %g2
or %g3, %g2, %g3
sethi %hi(sparc64_kern_pri_context), %g2
ldx [%g2 + %lo(sparc64_kern_pri_context)], %g3
stxa %g3, [%l4] ASI_DMMU
flush %l6
@ -264,38 +256,3 @@ cplus_etrap_insn_4:
#undef TASK_REGOFF
#undef ETRAP_PSTATE1
cplus_einsn_1:
sethi %uhi(CTX_CHEETAH_PLUS_NUC), %g3
cplus_einsn_2:
sethi %hi(CTX_CHEETAH_PLUS_CTX0), %g2
.globl cheetah_plus_patch_etrap
cheetah_plus_patch_etrap:
/* We configure the dTLB512_0 for 4MB pages and the
* dTLB512_1 for 8K pages when in context zero.
*/
sethi %hi(cplus_einsn_1), %o0
sethi %hi(cplus_etrap_insn_1), %o2
lduw [%o0 + %lo(cplus_einsn_1)], %o1
or %o2, %lo(cplus_etrap_insn_1), %o2
stw %o1, [%o2]
flush %o2
sethi %hi(cplus_etrap_insn_3), %o2
or %o2, %lo(cplus_etrap_insn_3), %o2
stw %o1, [%o2]
flush %o2
sethi %hi(cplus_einsn_2), %o0
sethi %hi(cplus_etrap_insn_2), %o2
lduw [%o0 + %lo(cplus_einsn_2)], %o1
or %o2, %lo(cplus_etrap_insn_2), %o2
stw %o1, [%o2]
flush %o2
sethi %hi(cplus_etrap_insn_4), %o2
or %o2, %lo(cplus_etrap_insn_4), %o2
stw %o1, [%o2]
flush %o2
retl
nop

191
arch/sparc64/kernel/head.S
View File

@ -28,19 +28,14 @@
#include <asm/mmu.h>
/* This section from from _start to sparc64_boot_end should fit into
* 0x0000.0000.0040.4000 to 0x0000.0000.0040.8000 and will be sharing space
* with bootup_user_stack, which is from 0x0000.0000.0040.4000 to
* 0x0000.0000.0040.6000 and empty_bad_page, which is from
* 0x0000.0000.0040.6000 to 0x0000.0000.0040.8000.
* 0x0000000000404000 to 0x0000000000408000.
*/
.text
.globl start, _start, stext, _stext
_start:
start:
_stext:
stext:
bootup_user_stack:
! 0x0000000000404000
b sparc64_boot
flushw /* Flush register file. */
@ -191,8 +186,9 @@ prom_boot_mapping_phys_low:
stx %l3, [%sp + 2047 + 128 + 0x10] ! num_rets, 5
stx %l2, [%sp + 2047 + 128 + 0x18] ! arg1: "translate"
stx %l5, [%sp + 2047 + 128 + 0x20] ! arg2: prom_mmu_ihandle_cache
srlx %l0, 22, %l3
sllx %l3, 22, %l3
/* PAGE align */
srlx %l0, 13, %l3
sllx %l3, 13, %l3
stx %l3, [%sp + 2047 + 128 + 0x28] ! arg3: vaddr, our PC
stx %g0, [%sp + 2047 + 128 + 0x30] ! res1
stx %g0, [%sp + 2047 + 128 + 0x38] ! res2
@ -211,6 +207,9 @@ prom_boot_mapping_phys_low:
ldx [%sp + 2047 + 128 + 0x48], %l2 ! physaddr high
stx %l2, [%l4 + 0x0]
ldx [%sp + 2047 + 128 + 0x50], %l3 ! physaddr low
/* 4MB align */
srlx %l3, 22, %l3
sllx %l3, 22, %l3
stx %l3, [%l4 + 0x8]
/* Leave service as-is, "call-method" */
@ -325,23 +324,7 @@ cheetah_tlb_fixup:
1: sethi %hi(tlb_type), %g1
stw %g2, [%g1 + %lo(tlb_type)]
BRANCH_IF_CHEETAH_PLUS_OR_FOLLOWON(g1,g7,1f)
ba,pt %xcc, 2f
nop
1: /* Patch context register writes to support nucleus page
* size correctly.
*/
call cheetah_plus_patch_etrap
nop
call cheetah_plus_patch_rtrap
nop
call cheetah_plus_patch_fpdis
nop
call cheetah_plus_patch_winfixup
nop
2: /* Patch copy/page operations to cheetah optimized versions. */
/* Patch copy/page operations to cheetah optimized versions. */
call cheetah_patch_copyops
nop
call cheetah_patch_copy_page
@ -398,32 +381,78 @@ tlb_fixup_done:
nop
/* Not reached... */
/* IMPORTANT NOTE: Whenever making changes here, check
* trampoline.S as well. -jj */
.globl setup_tba
setup_tba: /* i0 = is_starfire */
save %sp, -160, %sp
/* This is meant to allow the sharing of this code between
* boot processor invocation (via setup_tba() below) and
* secondary processor startup (via trampoline.S). The
* former does use this code, the latter does not yet due
* to some complexities. That should be fixed up at some
* point.
*
* There used to be enormous complexity wrt. transferring
* over from the firwmare's trap table to the Linux kernel's.
* For example, there was a chicken & egg problem wrt. building
* the OBP page tables, yet needing to be on the Linux kernel
* trap table (to translate PAGE_OFFSET addresses) in order to
* do that.
*
* We now handle OBP tlb misses differently, via linear lookups
* into the prom_trans[] array. So that specific problem no
* longer exists. Yet, unfortunately there are still some issues
* preventing trampoline.S from using this code... ho hum.
*/
.globl setup_trap_table
setup_trap_table:
save %sp, -192, %sp
rdpr %tba, %g7
sethi %hi(prom_tba), %o1
or %o1, %lo(prom_tba), %o1
stx %g7, [%o1]
/* Force interrupts to be disabled. */
rdpr %pstate, %o1
andn %o1, PSTATE_IE, %o1
wrpr %o1, 0x0, %pstate
wrpr %g0, 15, %pil
/* Make the firmware call to jump over to the Linux trap table. */
call prom_set_trap_table
sethi %hi(sparc64_ttable_tl0), %o0
/* Start using proper page size encodings in ctx register. */
sethi %hi(sparc64_kern_pri_context), %g3
ldx [%g3 + %lo(sparc64_kern_pri_context)], %g2
mov PRIMARY_CONTEXT, %g1
stxa %g2, [%g1] ASI_DMMU
membar #Sync
/* The Linux trap handlers expect various trap global registers
* to be setup with some fixed values. So here we set these
* up very carefully. These globals are:
*
* Alternate Globals (PSTATE_AG):
*
* %g6 --> current_thread_info()
*
* MMU Globals (PSTATE_MG):
*
* %g1 --> TLB_SFSR
* %g2 --> ((_PAGE_VALID | _PAGE_SZ4MB |
* _PAGE_CP | _PAGE_CV | _PAGE_P | _PAGE_W)
* ^ 0xfffff80000000000)
* (this %g2 value is used for computing the PAGE_OFFSET kernel
* TLB entries quickly, the virtual address of the fault XOR'd
* with this %g2 value is the PTE to load into the TLB)
* %g3 --> VPTE_BASE_CHEETAH or VPTE_BASE_SPITFIRE
*
* Interrupt Globals (PSTATE_IG, setup by init_irqwork_curcpu()):
*
* %g6 --> __irq_work[smp_processor_id()]
*/
/* Setup "Linux" globals 8-) */
rdpr %pstate, %o1
mov %g6, %o2
wrpr %o1, (PSTATE_AG|PSTATE_IE), %pstate
sethi %hi(sparc64_ttable_tl0), %g1
wrpr %g1, %tba
wrpr %o1, PSTATE_AG, %pstate
mov %o2, %g6
/* Set up MMU globals */
wrpr %o1, (PSTATE_MG|PSTATE_IE), %pstate
/* Set fixed globals used by dTLB miss handler. */
#define KERN_HIGHBITS ((_PAGE_VALID|_PAGE_SZ4MB)^0xfffff80000000000)
#define KERN_LOWBITS (_PAGE_CP | _PAGE_CV | _PAGE_P | _PAGE_W)
wrpr %o1, PSTATE_MG, %pstate
mov TSB_REG, %g1
stxa %g0, [%g1] ASI_DMMU
membar #Sync
@ -435,17 +464,17 @@ setup_tba: /* i0 = is_starfire */
sllx %g2, 32, %g2
or %g2, KERN_LOWBITS, %g2
BRANCH_IF_ANY_CHEETAH(g3,g7,cheetah_vpte_base)
ba,pt %xcc, spitfire_vpte_base
BRANCH_IF_ANY_CHEETAH(g3,g7,8f)
ba,pt %xcc, 9f
nop
cheetah_vpte_base:
8:
sethi %uhi(VPTE_BASE_CHEETAH), %g3
or %g3, %ulo(VPTE_BASE_CHEETAH), %g3
ba,pt %xcc, 2f
sllx %g3, 32, %g3
spitfire_vpte_base:
9:
sethi %uhi(VPTE_BASE_SPITFIRE), %g3
or %g3, %ulo(VPTE_BASE_SPITFIRE), %g3
sllx %g3, 32, %g3
@ -471,48 +500,55 @@ spitfire_vpte_base:
sllx %o2, 32, %o2
wr %o2, %asr25
/* Ok, we're done setting up all the state our trap mechanims needs,
* now get back into normal globals and let the PROM know what is up.
*/
2:
wrpr %g0, %g0, %wstate
wrpr %o1, PSTATE_IE, %pstate
wrpr %o1, 0x0, %pstate
call init_irqwork_curcpu
nop
call prom_set_trap_table
sethi %hi(sparc64_ttable_tl0), %o0
BRANCH_IF_CHEETAH_PLUS_OR_FOLLOWON(g2,g3,1f)
ba,pt %xcc, 2f
nop
1: /* Start using proper page size encodings in ctx register. */
sethi %uhi(CTX_CHEETAH_PLUS_NUC), %g3
mov PRIMARY_CONTEXT, %g1
sllx %g3, 32, %g3
sethi %hi(CTX_CHEETAH_PLUS_CTX0), %g2
or %g3, %g2, %g3
stxa %g3, [%g1] ASI_DMMU
membar #Sync
2:
/* Now we can turn interrupts back on. */
rdpr %pstate, %o1
or %o1, PSTATE_IE, %o1
wrpr %o1, 0, %pstate
wrpr %g0, 0x0, %pil
ret
restore
.globl setup_tba
setup_tba: /* i0 = is_starfire */
save %sp, -192, %sp
/* The boot processor is the only cpu which invokes this
* routine, the other cpus set things up via trampoline.S.
* So save the OBP trap table address here.
*/
rdpr %tba, %g7
sethi %hi(prom_tba), %o1
or %o1, %lo(prom_tba), %o1
stx %g7, [%o1]
call setup_trap_table
nop
ret
restore
sparc64_boot_end:
#include "systbls.S"
#include "ktlb.S"
#include "etrap.S"
#include "rtrap.S"
#include "winfixup.S"
#include "entry.S"
/*
* The following skips make sure the trap table in ttable.S is aligned
* The following skip makes sure the trap table in ttable.S is aligned
* on a 32K boundary as required by the v9 specs for TBA register.
*/
sparc64_boot_end:
.skip 0x2000 + _start - sparc64_boot_end
bootup_user_stack_end:
.skip 0x2000
1:
.skip 0x4000 + _start - 1b
#ifdef CONFIG_SBUS
/* This is just a hack to fool make depend config.h discovering
@ -524,15 +560,6 @@ bootup_user_stack_end:
! 0x0000000000408000
#include "ttable.S"
#include "systbls.S"
#include "ktlb.S"
#include "etrap.S"
#include "rtrap.S"
#include "winfixup.S"
#include "entry.S"
/* This is just anal retentiveness on my part... */
.align 16384
.data
.align 8

1
arch/sparc64/kernel/irq.c
View File

@ -27,6 +27,7 @@
#include <asm/atomic.h>
#include <asm/system.h>
#include <asm/irq.h>
#include <asm/io.h>
#include <asm/sbus.h>
#include <asm/iommu.h>
#include <asm/upa.h>

26
arch/sparc64/kernel/itlb_base.S
View File

@ -15,14 +15,12 @@
*/
#define CREATE_VPTE_OFFSET1(r1, r2) \
srax r1, 10, r2
#define CREATE_VPTE_OFFSET2(r1, r2)
#define CREATE_VPTE_NOP nop
#define CREATE_VPTE_OFFSET2(r1, r2) nop
#else /* PAGE_SHIFT */
#define CREATE_VPTE_OFFSET1(r1, r2) \
srax r1, PAGE_SHIFT, r2
#define CREATE_VPTE_OFFSET2(r1, r2) \
sllx r2, 3, r2
#define CREATE_VPTE_NOP
#endif /* PAGE_SHIFT */
@ -36,6 +34,7 @@
*/
/* ITLB ** ICACHE line 1: Quick user TLB misses */
mov TLB_SFSR, %g1
ldxa [%g1 + %g1] ASI_IMMU, %g4 ! Get TAG_ACCESS
CREATE_VPTE_OFFSET1(%g4, %g6) ! Create VPTE offset
CREATE_VPTE_OFFSET2(%g4, %g6) ! Create VPTE offset
@ -43,41 +42,38 @@
1: brgez,pn %g5, 3f ! Not valid, branch out
sethi %hi(_PAGE_EXEC), %g4 ! Delay-slot
andcc %g5, %g4, %g0 ! Executable?
/* ITLB ** ICACHE line 2: Real faults */
be,pn %xcc, 3f ! Nope, branch.
nop ! Delay-slot
2: stxa %g5, [%g0] ASI_ITLB_DATA_IN ! Load PTE into TLB
retry ! Trap return
3: rdpr %pstate, %g4 ! Move into alternate globals
/* ITLB ** ICACHE line 2: Real faults */
3: rdpr %pstate, %g4 ! Move into alt-globals
wrpr %g4, PSTATE_AG|PSTATE_MG, %pstate
rdpr %tpc, %g5 ! And load faulting VA
mov FAULT_CODE_ITLB, %g4 ! It was read from ITLB
sparc64_realfault_common: ! Called by TL0 dtlb_miss too
/* ITLB ** ICACHE line 3: Finish faults */
sparc64_realfault_common: ! Called by dtlb_miss
stb %g4, [%g6 + TI_FAULT_CODE]
stx %g5, [%g6 + TI_FAULT_ADDR]
ba,pt %xcc, etrap ! Save state
1: rd %pc, %g7 ! ...
nop
/* ITLB ** ICACHE line 3: Finish faults + window fixups */
call do_sparc64_fault ! Call fault handler
add %sp, PTREGS_OFF, %o0! Compute pt_regs arg
ba,pt %xcc, rtrap_clr_l6 ! Restore cpu state
nop
/* ITLB ** ICACHE line 4: Window fixups */
winfix_trampoline:
rdpr %tpc, %g3 ! Prepare winfixup TNPC
or %g3, 0x7c, %g3 ! Compute offset to branch
or %g3, 0x7c, %g3 ! Compute branch offset
wrpr %g3, %tnpc ! Write it into TNPC
done ! Do it to it
/* ITLB ** ICACHE line 4: Unused... */
nop
nop
nop
nop
CREATE_VPTE_NOP
#undef CREATE_VPTE_OFFSET1
#undef CREATE_VPTE_OFFSET2
#undef CREATE_VPTE_NOP

84
arch/sparc64/kernel/ktlb.S
View File

@ -58,9 +58,6 @@ vpte_noent:
done
vpte_insn_obp:
sethi %hi(prom_pmd_phys), %g5
ldx [%g5 + %lo(prom_pmd_phys)], %g5
/* Behave as if we are at TL0. */
wrpr %g0, 1, %tl
rdpr %tpc, %g4 /* Find original faulting iaddr */
@ -71,58 +68,57 @@ vpte_insn_obp:
mov TLB_SFSR, %g1
stxa %g4, [%g1 + %g1] ASI_IMMU
/* Get PMD offset. */
srlx %g4, 23, %g6
and %g6, 0x7ff, %g6
sllx %g6, 2, %g6
sethi %hi(prom_trans), %g5
or %g5, %lo(prom_trans), %g5
/* Load PMD, is it valid? */
lduwa [%g5 + %g6] ASI_PHYS_USE_EC, %g5
brz,pn %g5, longpath
sllx %g5, 11, %g5
1: ldx [%g5 + 0x00], %g6 ! base
brz,a,pn %g6, longpath ! no more entries, fail
mov TLB_SFSR, %g1 ! and restore %g1
ldx [%g5 + 0x08], %g1 ! len
add %g6, %g1, %g1 ! end
cmp %g6, %g4
bgu,pt %xcc, 2f
cmp %g4, %g1
bgeu,pt %xcc, 2f
ldx [%g5 + 0x10], %g1 ! PTE
/* Get PTE offset. */
srlx %g4, 13, %g6
and %g6, 0x3ff, %g6
sllx %g6, 3, %g6
/* Load PTE. */
ldxa [%g5 + %g6] ASI_PHYS_USE_EC, %g5
brgez,pn %g5, longpath
nop
/* TLB load and return from trap. */
/* TLB load, restore %g1, and return from trap. */
sub %g4, %g6, %g6
add %g1, %g6, %g5
mov TLB_SFSR, %g1
stxa %g5, [%g0] ASI_ITLB_DATA_IN
retry
2: ba,pt %xcc, 1b
add %g5, (3 * 8), %g5 ! next entry
kvmap_do_obp:
sethi %hi(prom_pmd_phys), %g5
ldx [%g5 + %lo(prom_pmd_phys)], %g5
sethi %hi(prom_trans), %g5
or %g5, %lo(prom_trans), %g5
srlx %g4, 13, %g4
sllx %g4, 13, %g4
/* Get PMD offset. */
srlx %g4, 23, %g6
and %g6, 0x7ff, %g6
sllx %g6, 2, %g6
1: ldx [%g5 + 0x00], %g6 ! base
brz,a,pn %g6, longpath ! no more entries, fail
mov TLB_SFSR, %g1 ! and restore %g1
ldx [%g5 + 0x08], %g1 ! len
add %g6, %g1, %g1 ! end
cmp %g6, %g4
bgu,pt %xcc, 2f
cmp %g4, %g1
bgeu,pt %xcc, 2f
ldx [%g5 + 0x10], %g1 ! PTE
/* Load PMD, is it valid? */
lduwa [%g5 + %g6] ASI_PHYS_USE_EC, %g5
brz,pn %g5, longpath
sllx %g5, 11, %g5
/* Get PTE offset. */
srlx %g4, 13, %g6
and %g6, 0x3ff, %g6
sllx %g6, 3, %g6
/* Load PTE. */
ldxa [%g5 + %g6] ASI_PHYS_USE_EC, %g5
brgez,pn %g5, longpath
nop
/* TLB load and return from trap. */
/* TLB load, restore %g1, and return from trap. */
sub %g4, %g6, %g6
add %g1, %g6, %g5
mov TLB_SFSR, %g1
stxa %g5, [%g0] ASI_DTLB_DATA_IN
retry
2: ba,pt %xcc, 1b
add %g5, (3 * 8), %g5 ! next entry
/*
* On a first level data miss, check whether this is to the OBP range (note
* that such accesses can be made by prom, as well as by kernel using

64
arch/sparc64/kernel/power.c
View File

@ -17,6 +17,7 @@
#include <asm/system.h>
#include <asm/ebus.h>
#include <asm/isa.h>
#include <asm/auxio.h>
#include <linux/unistd.h>
@ -100,46 +101,83 @@ again:
return 0;
}
static int __init has_button_interrupt(struct linux_ebus_device *edev)
static int __init has_button_interrupt(unsigned int irq, int prom_node)
{
if (edev->irqs[0] == PCI_IRQ_NONE)
if (irq == PCI_IRQ_NONE)
return 0;
if (!prom_node_has_property(edev->prom_node, "button"))
if (!prom_node_has_property(prom_node, "button"))
return 0;
return 1;
}
void __init power_init(void)
static int __init power_probe_ebus(struct resource **resp, unsigned int *irq_p, int *prom_node_p)
{
struct linux_ebus *ebus;
struct linux_ebus_device *edev;
for_each_ebus(ebus) {
for_each_ebusdev(edev, ebus) {
if (!strcmp(edev->prom_name, "power")) {
*resp = &edev->resource[0];
*irq_p = edev->irqs[0];
*prom_node_p = edev->prom_node;
return 0;
}
}
}
return -ENODEV;
}
static int __init power_probe_isa(struct resource **resp, unsigned int *irq_p, int *prom_node_p)
{
struct sparc_isa_bridge *isa_bus;
struct sparc_isa_device *isa_dev;
for_each_isa(isa_bus) {
for_each_isadev(isa_dev, isa_bus) {
if (!strcmp(isa_dev->prom_name, "power")) {
*resp = &isa_dev->resource;
*irq_p = isa_dev->irq;
*prom_node_p = isa_dev->prom_node;
return 0;
}
}
}
return -ENODEV;
}
void __init power_init(void)
{
struct resource *res = NULL;
unsigned int irq;
int prom_node;
static int invoked;
if (invoked)
return;
invoked = 1;
for_each_ebus(ebus) {
for_each_ebusdev(edev, ebus) {
if (!strcmp(edev->prom_name, "power"))
goto found;
}
}
if (!power_probe_ebus(&res, &irq, &prom_node))
goto found;
if (!power_probe_isa(&res, &irq, &prom_node))
goto found;
return;
found:
power_reg = ioremap(edev->resource[0].start, 0x4);
power_reg = ioremap(res->start, 0x4);
printk("power: Control reg at %p ... ", power_reg);
poweroff_method = machine_halt; /* able to use the standard halt */
if (has_button_interrupt(edev)) {
if (has_button_interrupt(irq, prom_node)) {
if (kernel_thread(powerd, NULL, CLONE_FS) < 0) {
printk("Failed to start power daemon.\n");
return;
}
printk("powerd running.\n");
if (request_irq(edev->irqs[0],
if (request_irq(irq,
power_handler, SA_SHIRQ, "power", NULL) < 0)
printk("power: Error, cannot register IRQ handler.\n");
} else {

30
arch/sparc64/kernel/rtrap.S
View File

@ -256,9 +256,8 @@ rt_continue: ldx [%sp + PTREGS_OFF + PT_V9_G1], %g1
brnz,pn %l3, kern_rtt
mov PRIMARY_CONTEXT, %l7
ldxa [%l7 + %l7] ASI_DMMU, %l0
cplus_rtrap_insn_1:
sethi %hi(0), %l1
sllx %l1, 32, %l1
sethi %hi(sparc64_kern_pri_nuc_bits), %l1
ldx [%l1 + %lo(sparc64_kern_pri_nuc_bits)], %l1
or %l0, %l1, %l0
stxa %l0, [%l7] ASI_DMMU
flush %g6
@ -313,53 +312,36 @@ kern_fpucheck: ldub [%g6 + TI_FPDEPTH], %l5
wr %g1, FPRS_FEF, %fprs
ldx [%o1 + %o5], %g1
add %g6, TI_XFSR, %o1
membar #StoreLoad | #LoadLoad
sll %o0, 8, %o2
add %g6, TI_FPREGS, %o3
brz,pn %l6, 1f
add %g6, TI_FPREGS+0x40, %o4
membar #Sync
ldda [%o3 + %o2] ASI_BLK_P, %f0
ldda [%o4 + %o2] ASI_BLK_P, %f16
membar #Sync
1: andcc %l2, FPRS_DU, %g0
be,pn %icc, 1f
wr %g1, 0, %gsr
add %o2, 0x80, %o2
membar #Sync
ldda [%o3 + %o2] ASI_BLK_P, %f32
ldda [%o4 + %o2] ASI_BLK_P, %f48
1: membar #Sync
ldx [%o1 + %o5], %fsr
2: stb %l5, [%g6 + TI_FPDEPTH]
ba,pt %xcc, rt_continue
nop
5: wr %g0, FPRS_FEF, %fprs
membar #StoreLoad | #LoadLoad
sll %o0, 8, %o2
add %g6, TI_FPREGS+0x80, %o3
add %g6, TI_FPREGS+0xc0, %o4
membar #Sync
ldda [%o3 + %o2] ASI_BLK_P, %f32
ldda [%o4 + %o2] ASI_BLK_P, %f48
membar #Sync
wr %g0, FPRS_DU, %fprs
ba,pt %xcc, rt_continue
stb %l5, [%g6 + TI_FPDEPTH]
cplus_rinsn_1:
sethi %uhi(CTX_CHEETAH_PLUS_NUC), %l1
.globl cheetah_plus_patch_rtrap
cheetah_plus_patch_rtrap:
/* We configure the dTLB512_0 for 4MB pages and the
* dTLB512_1 for 8K pages when in context zero.
*/
sethi %hi(cplus_rinsn_1), %o0
sethi %hi(cplus_rtrap_insn_1), %o2
lduw [%o0 + %lo(cplus_rinsn_1)], %o1
or %o2, %lo(cplus_rtrap_insn_1), %o2
stw %o1, [%o2]
flush %o2
retl
nop

8
arch/sparc64/kernel/setup.c
View File

@ -187,17 +187,13 @@ int prom_callback(long *args)
}
if ((va >= KERNBASE) && (va < (KERNBASE + (4 * 1024 * 1024)))) {
unsigned long kernel_pctx = 0;
if (tlb_type == cheetah_plus)
kernel_pctx |= (CTX_CHEETAH_PLUS_NUC |
CTX_CHEETAH_PLUS_CTX0);
extern unsigned long sparc64_kern_pri_context;
/* Spitfire Errata #32 workaround */
__asm__ __volatile__("stxa %0, [%1] %2\n\t"
"flush %%g6"
: /* No outputs */
: "r" (kernel_pctx),
: "r" (sparc64_kern_pri_context),
"r" (PRIMARY_CONTEXT),
"i" (ASI_DMMU));

15
arch/sparc64/kernel/trampoline.S
View File

@ -336,20 +336,13 @@ do_unlock:
call init_irqwork_curcpu
nop
BRANCH_IF_CHEETAH_PLUS_OR_FOLLOWON(g2,g3,1f)
ba,pt %xcc, 2f
nop
1: /* Start using proper page size encodings in ctx register. */
sethi %uhi(CTX_CHEETAH_PLUS_NUC), %g3
/* Start using proper page size encodings in ctx register. */
sethi %hi(sparc64_kern_pri_context), %g3
ldx [%g3 + %lo(sparc64_kern_pri_context)], %g2
mov PRIMARY_CONTEXT, %g1
sllx %g3, 32, %g3
sethi %hi(CTX_CHEETAH_PLUS_CTX0), %g2
or %g3, %g2, %g3
stxa %g3, [%g1] ASI_DMMU
stxa %g2, [%g1] ASI_DMMU
membar #Sync
2:
rdpr %pstate, %o1
or %o1, PSTATE_IE, %o1
wrpr %o1, 0, %pstate

33
arch/sparc64/kernel/winfixup.S
View File

@ -16,23 +16,14 @@
.text
set_pcontext:
cplus_winfixup_insn_1:
sethi %hi(0), %l1
sethi %hi(sparc64_kern_pri_context), %l1
ldx [%l1 + %lo(sparc64_kern_pri_context)], %l1
mov PRIMARY_CONTEXT, %g1
sllx %l1, 32, %l1
cplus_winfixup_insn_2:
sethi %hi(0), %g2
or %l1, %g2, %l1
stxa %l1, [%g1] ASI_DMMU
flush %g6
retl
nop
cplus_wfinsn_1:
sethi %uhi(CTX_CHEETAH_PLUS_NUC), %l1
cplus_wfinsn_2:
sethi %hi(CTX_CHEETAH_PLUS_CTX0), %g2
.align 32
/* Here are the rules, pay attention.
@ -395,23 +386,3 @@ window_dax_from_user_common:
add %sp, PTREGS_OFF, %o0
ba,pt %xcc, rtrap
clr %l6
.globl cheetah_plus_patch_winfixup
cheetah_plus_patch_winfixup:
sethi %hi(cplus_wfinsn_1), %o0
sethi %hi(cplus_winfixup_insn_1), %o2
lduw [%o0 + %lo(cplus_wfinsn_1)], %o1
or %o2, %lo(cplus_winfixup_insn_1), %o2
stw %o1, [%o2]
flush %o2
sethi %hi(cplus_wfinsn_2), %o0
sethi %hi(cplus_winfixup_insn_2), %o2
lduw [%o0 + %lo(cplus_wfinsn_2)], %o1
or %o2, %lo(cplus_winfixup_insn_2), %o2
stw %o1, [%o2]
flush %o2
retl
nop

8
arch/sparc64/lib/VISsave.S
View File

@ -59,15 +59,17 @@ vis1: ldub [%g6 + TI_FPSAVED], %g3
be,pn %icc, 9b
add %g6, TI_FPREGS, %g2
andcc %o5, FPRS_DL, %g0
membar #StoreStore | #LoadStore
be,pn %icc, 4f
add %g6, TI_FPREGS+0x40, %g3
membar #Sync
stda %f0, [%g2 + %g1] ASI_BLK_P
stda %f16, [%g3 + %g1] ASI_BLK_P
membar #Sync
andcc %o5, FPRS_DU, %g0
be,pn %icc, 5f
4: add %g1, 128, %g1
membar #Sync
stda %f32, [%g2 + %g1] ASI_BLK_P
stda %f48, [%g3 + %g1] ASI_BLK_P
@ -87,7 +89,7 @@ vis1: ldub [%g6 + TI_FPSAVED], %g3
sll %g1, 5, %g1
add %g6, TI_FPREGS+0xc0, %g3
wr %g0, FPRS_FEF, %fprs
membar #StoreStore | #LoadStore
membar #Sync
stda %f32, [%g2 + %g1] ASI_BLK_P
stda %f48, [%g3 + %g1] ASI_BLK_P
membar #Sync
@ -128,8 +130,8 @@ VISenterhalf:
be,pn %icc, 4f
add %g6, TI_FPREGS, %g2
membar #StoreStore | #LoadStore
add %g6, TI_FPREGS+0x40, %g3
membar #Sync
stda %f0, [%g2 + %g1] ASI_BLK_P
stda %f16, [%g3 + %g1] ASI_BLK_P
membar #Sync

253
arch/sparc64/mm/init.c
View File

@ -105,7 +105,7 @@ static void __init read_obp_memory(const char *property,
regs[i].phys_addr = base;
regs[i].reg_size = size;
}
sort(regs, ents, sizeof(struct linux_prom64_registers),
sort(regs, ents, sizeof(struct linux_prom64_registers),
cmp_p64, NULL);
}
@ -133,6 +133,12 @@ extern unsigned int sparc_ramdisk_size;
struct page *mem_map_zero __read_mostly;
unsigned int sparc64_highest_unlocked_tlb_ent __read_mostly;
unsigned long sparc64_kern_pri_context __read_mostly;
unsigned long sparc64_kern_pri_nuc_bits __read_mostly;
unsigned long sparc64_kern_sec_context __read_mostly;
int bigkernel = 0;
/* XXX Tune this... */
@ -361,7 +367,11 @@ struct linux_prom_translation {
unsigned long size;
unsigned long data;
};
static struct linux_prom_translation prom_trans[512] __initdata;
/* Exported for kernel TLB miss handling in ktlb.S */
struct linux_prom_translation prom_trans[512] __read_mostly;
unsigned int prom_trans_ents __read_mostly;
unsigned int swapper_pgd_zero __read_mostly;
extern unsigned long prom_boot_page;
extern void prom_remap(unsigned long physpage, unsigned long virtpage, int mmu_ihandle);
@ -371,178 +381,57 @@ extern void register_prom_callbacks(void);
/* Exported for SMP bootup purposes. */
unsigned long kern_locked_tte_data;
/* Exported for kernel TLB miss handling in ktlb.S */
unsigned long prom_pmd_phys __read_mostly;
unsigned int swapper_pgd_zero __read_mostly;
/* Allocate power-of-2 aligned chunks from the end of the
* kernel image. Return physical address.
*/
static inline unsigned long early_alloc_phys(unsigned long size)
{
unsigned long base;
BUILD_BUG_ON(size & (size - 1));
kern_size = (kern_size + (size - 1)) & ~(size - 1);
base = kern_base + kern_size;
kern_size += size;
return base;
}
static inline unsigned long load_phys32(unsigned long pa)
{
unsigned long val;
__asm__ __volatile__("lduwa [%1] %2, %0"
: "=&r" (val)
: "r" (pa), "i" (ASI_PHYS_USE_EC));
return val;
}
static inline unsigned long load_phys64(unsigned long pa)
{
unsigned long val;
__asm__ __volatile__("ldxa [%1] %2, %0"
: "=&r" (val)
: "r" (pa), "i" (ASI_PHYS_USE_EC));
return val;
}
static inline void store_phys32(unsigned long pa, unsigned long val)
{
__asm__ __volatile__("stwa %0, [%1] %2"
: /* no outputs */
: "r" (val), "r" (pa), "i" (ASI_PHYS_USE_EC));
}
static inline void store_phys64(unsigned long pa, unsigned long val)
{
__asm__ __volatile__("stxa %0, [%1] %2"
: /* no outputs */
: "r" (val), "r" (pa), "i" (ASI_PHYS_USE_EC));
}
#define BASE_PAGE_SIZE 8192
/*
* Translate PROM's mapping we capture at boot time into physical address.
* The second parameter is only set from prom_callback() invocations.
*/
unsigned long prom_virt_to_phys(unsigned long promva, int *error)
{
unsigned long pmd_phys = (prom_pmd_phys +
((promva >> 23) & 0x7ff) * sizeof(pmd_t));
unsigned long pte_phys;
pmd_t pmd_ent;
pte_t pte_ent;
unsigned long base;
int i;
pmd_val(pmd_ent) = load_phys32(pmd_phys);
if (pmd_none(pmd_ent)) {
if (error)
*error = 1;
return 0;
}
for (i = 0; i < prom_trans_ents; i++) {
struct linux_prom_translation *p = &prom_trans[i];
pte_phys = (unsigned long)pmd_val(pmd_ent) << 11UL;
pte_phys += ((promva >> 13) & 0x3ff) * sizeof(pte_t);
pte_val(pte_ent) = load_phys64(pte_phys);
if (!pte_present(pte_ent)) {
if (error)
*error = 1;
return 0;
if (promva >= p->virt &&
promva < (p->virt + p->size)) {
unsigned long base = p->data & _PAGE_PADDR;
if (error)
*error = 0;
return base + (promva & (8192 - 1));
}
}
if (error) {
*error = 0;
return pte_val(pte_ent);
}
base = pte_val(pte_ent) & _PAGE_PADDR;
return (base + (promva & (BASE_PAGE_SIZE - 1)));
if (error)
*error = 1;
return 0UL;
}
/* The obp translations are saved based on 8k pagesize, since obp can
* use a mixture of pagesizes. Misses to the LOW_OBP_ADDRESS ->
* HI_OBP_ADDRESS range are handled in entry.S and do not use the vpte
* HI_OBP_ADDRESS range are handled in ktlb.S and do not use the vpte
* scheme (also, see rant in inherit_locked_prom_mappings()).
*/
static void __init build_obp_range(unsigned long start, unsigned long end, unsigned long data)
{
unsigned long vaddr;
for (vaddr = start; vaddr < end; vaddr += BASE_PAGE_SIZE) {
unsigned long val, pte_phys, pmd_phys;
pmd_t pmd_ent;
int i;
pmd_phys = (prom_pmd_phys +
(((vaddr >> 23) & 0x7ff) * sizeof(pmd_t)));
pmd_val(pmd_ent) = load_phys32(pmd_phys);
if (pmd_none(pmd_ent)) {
pte_phys = early_alloc_phys(BASE_PAGE_SIZE);
for (i = 0; i < BASE_PAGE_SIZE / sizeof(pte_t); i++)
store_phys64(pte_phys+i*sizeof(pte_t),0);
pmd_val(pmd_ent) = pte_phys >> 11UL;
store_phys32(pmd_phys, pmd_val(pmd_ent));
}
pte_phys = (unsigned long)pmd_val(pmd_ent) << 11UL;
pte_phys += (((vaddr >> 13) & 0x3ff) * sizeof(pte_t));
val = data;
/* Clear diag TTE bits. */
if (tlb_type == spitfire)
val &= ~0x0003fe0000000000UL;
store_phys64(pte_phys, val | _PAGE_MODIFIED);
data += BASE_PAGE_SIZE;
}
}
static inline int in_obp_range(unsigned long vaddr)
{
return (vaddr >= LOW_OBP_ADDRESS &&
vaddr < HI_OBP_ADDRESS);
}
#define OBP_PMD_SIZE 2048
static void __init build_obp_pgtable(int prom_trans_ents)
static int cmp_ptrans(const void *a, const void *b)
{
unsigned long i;
const struct linux_prom_translation *x = a, *y = b;
prom_pmd_phys = early_alloc_phys(OBP_PMD_SIZE);
for (i = 0; i < OBP_PMD_SIZE; i += 4)
store_phys32(prom_pmd_phys + i, 0);
for (i = 0; i < prom_trans_ents; i++) {
unsigned long start, end;
if (!in_obp_range(prom_trans[i].virt))
continue;
start = prom_trans[i].virt;
end = start + prom_trans[i].size;
if (end > HI_OBP_ADDRESS)
end = HI_OBP_ADDRESS;
build_obp_range(start, end, prom_trans[i].data);
}
if (x->virt > y->virt)
return 1;
if (x->virt < y->virt)
return -1;
return 0;
}
/* Read OBP translations property into 'prom_trans[]'.
* Return the number of entries.
*/
static int __init read_obp_translations(void)
/* Read OBP translations property into 'prom_trans[]'. */
static void __init read_obp_translations(void)
{
int n, node;
int n, node, ents, first, last, i;
node = prom_finddevice("/virtual-memory");
n = prom_getproplen(node, "translations");
@ -561,8 +450,44 @@ static int __init read_obp_translations(void)
prom_printf("prom_mappings: Couldn't get property.\n");
prom_halt();
}
n = n / sizeof(struct linux_prom_translation);
return n;
ents = n;
sort(prom_trans, ents, sizeof(struct linux_prom_translation),
cmp_ptrans, NULL);
/* Now kick out all the non-OBP entries. */
for (i = 0; i < ents; i++) {
if (in_obp_range(prom_trans[i].virt))
break;
}
first = i;
for (; i < ents; i++) {
if (!in_obp_range(prom_trans[i].virt))
break;
}
last = i;
for (i = 0; i < (last - first); i++) {
struct linux_prom_translation *src = &prom_trans[i + first];
struct linux_prom_translation *dest = &prom_trans[i];
*dest = *src;
}
for (; i < ents; i++) {
struct linux_prom_translation *dest = &prom_trans[i];
dest->virt = dest->size = dest->data = 0x0UL;
}
prom_trans_ents = last - first;
if (tlb_type == spitfire) {
/* Clear diag TTE bits. */
for (i = 0; i < prom_trans_ents; i++)
prom_trans[i].data &= ~0x0003fe0000000000UL;
}
}
static void __init remap_kernel(void)
@ -582,29 +507,36 @@ static void __init remap_kernel(void)
prom_dtlb_load(tlb_ent, tte_data, tte_vaddr);
prom_itlb_load(tlb_ent, tte_data, tte_vaddr);
if (bigkernel) {
prom_dtlb_load(tlb_ent - 1,
tlb_ent -= 1;
prom_dtlb_load(tlb_ent,
tte_data + 0x400000,
tte_vaddr + 0x400000);
prom_itlb_load(tlb_ent - 1,
prom_itlb_load(tlb_ent,
tte_data + 0x400000,
tte_vaddr + 0x400000);
}
sparc64_highest_unlocked_tlb_ent = tlb_ent - 1;
if (tlb_type == cheetah_plus) {
sparc64_kern_pri_context = (CTX_CHEETAH_PLUS_CTX0 |
CTX_CHEETAH_PLUS_NUC);
sparc64_kern_pri_nuc_bits = CTX_CHEETAH_PLUS_NUC;
sparc64_kern_sec_context = CTX_CHEETAH_PLUS_CTX0;
}
}
static void __init inherit_prom_mappings(void)
{
int n;
n = read_obp_translations();
build_obp_pgtable(n);
read_obp_translations();
/* Now fixup OBP's idea about where we really are mapped. */
prom_printf("Remapping the kernel... ");
remap_kernel();
prom_printf("done.\n");
prom_printf("Registering callbacks... ");
register_prom_callbacks();
prom_printf("done.\n");
}
/* The OBP specifications for sun4u mark 0xfffffffc00000000 and
@ -788,8 +720,8 @@ void inherit_locked_prom_mappings(int save_p)
}
}
if (tlb_type == spitfire) {
int high = SPITFIRE_HIGHEST_LOCKED_TLBENT - bigkernel;
for (i = 0; i < high; i++) {
int high = sparc64_highest_unlocked_tlb_ent;
for (i = 0; i <= high; i++) {
unsigned long data;
/* Spitfire Errata #32 workaround */
@ -877,9 +809,9 @@ void inherit_locked_prom_mappings(int save_p)
}
}
} else if (tlb_type == cheetah || tlb_type == cheetah_plus) {
int high = CHEETAH_HIGHEST_LOCKED_TLBENT - bigkernel;
int high = sparc64_highest_unlocked_tlb_ent;
for (i = 0; i < high; i++) {
for (i = 0; i <= high; i++) {
unsigned long data;
data = cheetah_get_ldtlb_data(i);
@ -1556,7 +1488,6 @@ void __init paging_init(void)
swapper_pgd_zero = pgd_val(swapper_pg_dir[0]);
/* Inherit non-locked OBP mappings. */
inherit_prom_mappings();
/* Ok, we can use our TLB miss and window trap handlers safely.

2
arch/um/Makefile
View File

@ -152,7 +152,7 @@ archclean:
$(SYMLINK_HEADERS):
@echo ' SYMLINK $@'
ifneq ($(KBUILD_SRC),)
ln -fsn $(srctree)/include/asm-um/$(basename $(notdir $@))-$(SUBARCH)$(suffix $@) $@
$(Q)ln -fsn $(srctree)/include/asm-um/$(basename $(notdir $@))-$(SUBARCH)$(suffix $@) $@
else
$(Q)cd $(TOPDIR)/$(dir $@) ; \
ln -sf $(basename $(notdir $@))-$(SUBARCH)$(suffix $@) $(notdir $@)

2
arch/um/drivers/Makefile
View File

@ -13,7 +13,7 @@ mcast-objs := mcast_kern.o mcast_user.o
net-objs := net_kern.o net_user.o
mconsole-objs := mconsole_kern.o mconsole_user.o
hostaudio-objs := hostaudio_kern.o
ubd-objs := ubd_kern.o
ubd-objs := ubd_kern.o ubd_user.o
port-objs := port_kern.o port_user.o
harddog-objs := harddog_kern.o harddog_user.o

39
arch/um/drivers/cow.h
View File

@ -3,15 +3,40 @@
#include <asm/types.h>
#if defined(__BIG_ENDIAN)
# define ntohll(x) (x)
# define htonll(x) (x)
#elif defined(__LITTLE_ENDIAN)
# define ntohll(x) bswap_64(x)
# define htonll(x) bswap_64(x)
#if defined(__KERNEL__)
# include <asm/byteorder.h>
# if defined(__BIG_ENDIAN)
# define ntohll(x) (x)
# define htonll(x) (x)
# elif defined(__LITTLE_ENDIAN)
# define ntohll(x) be64_to_cpu(x)
# define htonll(x) cpu_to_be64(x)
# else
# error "Could not determine byte order"
# endif
#else
#error "__BYTE_ORDER not defined"
/* For the definition of ntohl, htonl and __BYTE_ORDER */
#include <endian.h>
#include <netinet/in.h>
#if defined(__BYTE_ORDER)
# if __BYTE_ORDER == __BIG_ENDIAN
# define ntohll(x) (x)
# define htonll(x) (x)
# elif __BYTE_ORDER == __LITTLE_ENDIAN
# define ntohll(x) bswap_64(x)
# define htonll(x) bswap_64(x)
# else
# error "Could not determine byte order: __BYTE_ORDER uncorrectly defined"
# endif
#else /* ! defined(__BYTE_ORDER) */
# error "Could not determine byte order: __BYTE_ORDER not defined"
#endif
#endif /* ! defined(__KERNEL__) */
extern int init_cow_file(int fd, char *cow_file, char *backing_file,
int sectorsize, int alignment, int *bitmap_offset_out,

1
arch/um/drivers/cow_user.c
View File

@ -9,7 +9,6 @@
#include <sys/time.h>
#include <sys/param.h>
#include <sys/user.h>
#include <netinet/in.h>
#include "os.h"

560
arch/um/drivers/ubd_kern.c
View File

@ -35,7 +35,6 @@
#include "linux/blkpg.h"
#include "linux/genhd.h"
#include "linux/spinlock.h"
#include "asm/atomic.h"
#include "asm/segment.h"
#include "asm/uaccess.h"
#include "asm/irq.h"
@ -54,21 +53,20 @@
#include "mem.h"
#include "mem_kern.h"
#include "cow.h"
#include "aio.h"
enum ubd_req { UBD_READ, UBD_WRITE };
struct io_thread_req {
enum aio_type op;
enum ubd_req op;
int fds[2];
unsigned long offsets[2];
unsigned long long offset;
unsigned long length;
char *buffer;
int sectorsize;
int bitmap_offset;
long bitmap_start;
long bitmap_end;
unsigned long sector_mask;
unsigned long long cow_offset;
unsigned long bitmap_words[2];
int error;
};
@ -82,31 +80,28 @@ extern int create_cow_file(char *cow_file, char *backing_file,
unsigned long *bitmap_len_out,
int *data_offset_out);
extern int read_cow_bitmap(int fd, void *buf, int offset, int len);
extern void do_io(struct io_thread_req *req, struct request *r,
unsigned long *bitmap);
extern void do_io(struct io_thread_req *req);
static inline int ubd_test_bit(__u64 bit, void *data)
static inline int ubd_test_bit(__u64 bit, unsigned char *data)
{
unsigned char *buffer = data;
__u64 n;
int bits, off;
bits = sizeof(buffer[0]) * 8;
bits = sizeof(data[0]) * 8;
n = bit / bits;
off = bit % bits;
return((buffer[n] & (1 << off)) != 0);
return((data[n] & (1 << off)) != 0);
}
static inline void ubd_set_bit(__u64 bit, void *data)
static inline void ubd_set_bit(__u64 bit, unsigned char *data)
{
unsigned char *buffer = data;
__u64 n;
int bits, off;
bits = sizeof(buffer[0]) * 8;
bits = sizeof(data[0]) * 8;
n = bit / bits;
off = bit % bits;
buffer[n] |= (1 << off);
data[n] |= (1 << off);
}
/*End stuff from ubd_user.h*/
@ -115,6 +110,8 @@ static inline void ubd_set_bit(__u64 bit, void *data)
static DEFINE_SPINLOCK(ubd_io_lock);
static DEFINE_SPINLOCK(ubd_lock);
static void (*do_ubd)(void);
static int ubd_open(struct inode * inode, struct file * filp);
static int ubd_release(struct inode * inode, struct file * file);
static int ubd_ioctl(struct inode * inode, struct file * file,
@ -161,8 +158,6 @@ struct cow {
int data_offset;
};
#define MAX_SG 64
struct ubd {
char *file;
int count;
@ -173,7 +168,6 @@ struct ubd {
int no_cow;
struct cow cow;
struct platform_device pdev;
struct scatterlist sg[MAX_SG];
};
#define DEFAULT_COW { \
@ -466,114 +460,81 @@ __uml_help(fakehd,
);
static void do_ubd_request(request_queue_t * q);
static int in_ubd;
/* Only changed by ubd_init, which is an initcall. */
int thread_fd = -1;
/* Changed by ubd_handler, which is serialized because interrupts only
* happen on CPU 0.
*/
int intr_count = 0;
static void ubd_end_request(struct request *req, int bytes, int uptodate)
{
if (!end_that_request_first(req, uptodate, bytes >> 9)) {
add_disk_randomness(req->rq_disk);
end_that_request_last(req);
}
}
/* call ubd_finish if you need to serialize */
static void __ubd_finish(struct request *req, int bytes)
static void __ubd_finish(struct request *req, int error)
{
if(bytes < 0){
ubd_end_request(req, 0, 0);
return;
}
int nsect;
ubd_end_request(req, bytes, 1);
if(error){
end_request(req, 0);
return;
}
nsect = req->current_nr_sectors;
req->sector += nsect;
req->buffer += nsect << 9;
req->errors = 0;
req->nr_sectors -= nsect;
req->current_nr_sectors = 0;
end_request(req, 1);
}
static inline void ubd_finish(struct request *req, int bytes)
static inline void ubd_finish(struct request *req, int error)
{
spin_lock(&ubd_io_lock);
__ubd_finish(req, bytes);
spin_unlock(&ubd_io_lock);
spin_lock(&ubd_io_lock);
__ubd_finish(req, error);
spin_unlock(&ubd_io_lock);
}
struct bitmap_io {
atomic_t count;
struct aio_context aio;
};
/* Called without ubd_io_lock held */
static void ubd_handler(void)
{
struct io_thread_req req;
struct request *rq = elv_next_request(ubd_queue);
int n;
struct ubd_aio {
struct aio_context aio;
struct request *req;
int len;
struct bitmap_io *bitmap;
void *bitmap_buf;
};
static int ubd_reply_fd = -1;
do_ubd = NULL;
intr_count++;
n = os_read_file(thread_fd, &req, sizeof(req));
if(n != sizeof(req)){
printk(KERN_ERR "Pid %d - spurious interrupt in ubd_handler, "
"err = %d\n", os_getpid(), -n);
spin_lock(&ubd_io_lock);
end_request(rq, 0);
spin_unlock(&ubd_io_lock);
return;
}
ubd_finish(rq, req.error);
reactivate_fd(thread_fd, UBD_IRQ);
do_ubd_request(ubd_queue);
}
static irqreturn_t ubd_intr(int irq, void *dev, struct pt_regs *unused)
{
struct aio_thread_reply reply;
struct ubd_aio *aio;
struct request *req;
int err, n, fd = (int) (long) dev;
while(1){
err = os_read_file(fd, &reply, sizeof(reply));
if(err == -EAGAIN)
break;
if(err < 0){
printk("ubd_aio_handler - read returned err %d\n",
-err);
break;
}
aio = container_of(reply.data, struct ubd_aio, aio);
n = reply.err;
if(n == 0){
req = aio->req;
req->nr_sectors -= aio->len >> 9;
if((aio->bitmap != NULL) &&
(atomic_dec_and_test(&aio->bitmap->count))){
aio->aio = aio->bitmap->aio;
aio->len = 0;
kfree(aio->bitmap);
aio->bitmap = NULL;
submit_aio(&aio->aio);
}
else {
if((req->nr_sectors == 0) &&
(aio->bitmap == NULL)){
int len = req->hard_nr_sectors << 9;
ubd_finish(req, len);
}
if(aio->bitmap_buf != NULL)
kfree(aio->bitmap_buf);
kfree(aio);
}
}
else if(n < 0){
ubd_finish(aio->req, n);
if(aio->bitmap != NULL)
kfree(aio->bitmap);
if(aio->bitmap_buf != NULL)
kfree(aio->bitmap_buf);
kfree(aio);
}
}
reactivate_fd(fd, UBD_IRQ);
do_ubd_request(ubd_queue);
ubd_handler();
return(IRQ_HANDLED);
}
/* Only changed by ubd_init, which is an initcall. */
static int io_pid = -1;
void kill_io_thread(void)
{
if(io_pid != -1)
os_kill_process(io_pid, 1);
}
__uml_exitcall(kill_io_thread);
static int ubd_file_size(struct ubd *dev, __u64 *size_out)
{
char *file;
@ -608,7 +569,7 @@ static int ubd_open_dev(struct ubd *dev)
&dev->cow.data_offset, create_ptr);
if((dev->fd == -ENOENT) && create_cow){
dev->fd = create_cow_file(dev->file, dev->cow.file,
dev->fd = create_cow_file(dev->file, dev->cow.file,
dev->openflags, 1 << 9, PAGE_SIZE,
&dev->cow.bitmap_offset,
&dev->cow.bitmap_len,
@ -870,10 +831,6 @@ int ubd_init(void)
{
int i;
ubd_reply_fd = init_aio_irq(UBD_IRQ, "ubd", ubd_intr);
if(ubd_reply_fd < 0)
printk("Setting up ubd AIO failed, err = %d\n", ubd_reply_fd);
devfs_mk_dir("ubd");
if (register_blkdev(MAJOR_NR, "ubd"))
return -1;
@ -884,7 +841,6 @@ int ubd_init(void)
return -1;
}
blk_queue_max_hw_segments(ubd_queue, MAX_SG);
if (fake_major != MAJOR_NR) {
char name[sizeof("ubd_nnn\0")];
@ -896,12 +852,40 @@ int ubd_init(void)
driver_register(&ubd_driver);
for (i = 0; i < MAX_DEV; i++)
ubd_add(i);
return 0;
}
late_initcall(ubd_init);
int ubd_driver_init(void){
unsigned long stack;
int err;
/* Set by CONFIG_BLK_DEV_UBD_SYNC or ubd=sync.*/
if(global_openflags.s){
printk(KERN_INFO "ubd: Synchronous mode\n");
/* Letting ubd=sync be like using ubd#s= instead of ubd#= is
* enough. So use anyway the io thread. */
}
stack = alloc_stack(0, 0);
io_pid = start_io_thread(stack + PAGE_SIZE - sizeof(void *),
&thread_fd);
if(io_pid < 0){
printk(KERN_ERR
"ubd : Failed to start I/O thread (errno = %d) - "
"falling back to synchronous I/O\n", -io_pid);
io_pid = -1;
return(0);
}
err = um_request_irq(UBD_IRQ, thread_fd, IRQ_READ, ubd_intr,
SA_INTERRUPT, "ubd", ubd_dev);
if(err != 0)
printk(KERN_ERR "um_request_irq failed - errno = %d\n", -err);
return(err);
}
device_initcall(ubd_driver_init);
static int ubd_open(struct inode *inode, struct file *filp)
{
struct gendisk *disk = inode->i_bdev->bd_disk;
@ -939,55 +923,105 @@ static int ubd_release(struct inode * inode, struct file * file)
return(0);
}
static void cowify_bitmap(struct io_thread_req *req, unsigned long *bitmap)
static void cowify_bitmap(__u64 io_offset, int length, unsigned long *cow_mask,
__u64 *cow_offset, unsigned long *bitmap,
__u64 bitmap_offset, unsigned long *bitmap_words,
__u64 bitmap_len)
{
__u64 sector = req->offset / req->sectorsize;
int i;
__u64 sector = io_offset >> 9;
int i, update_bitmap = 0;
for(i = 0; i < req->length / req->sectorsize; i++){
if(ubd_test_bit(sector + i, bitmap))
continue;
for(i = 0; i < length >> 9; i++){
if(cow_mask != NULL)
ubd_set_bit(i, (unsigned char *) cow_mask);
if(ubd_test_bit(sector + i, (unsigned char *) bitmap))
continue;
if(req->bitmap_start == -1)
req->bitmap_start = sector + i;
req->bitmap_end = sector + i + 1;
update_bitmap = 1;
ubd_set_bit(sector + i, (unsigned char *) bitmap);
}
ubd_set_bit(sector + i, bitmap);
}
if(!update_bitmap)
return;
*cow_offset = sector / (sizeof(unsigned long) * 8);
/* This takes care of the case where we're exactly at the end of the
* device, and *cow_offset + 1 is off the end. So, just back it up
* by one word. Thanks to Lynn Kerby for the fix and James McMechan
* for the original diagnosis.
*/
if(*cow_offset == ((bitmap_len + sizeof(unsigned long) - 1) /
sizeof(unsigned long) - 1))
(*cow_offset)--;
bitmap_words[0] = bitmap[*cow_offset];
bitmap_words[1] = bitmap[*cow_offset + 1];
*cow_offset *= sizeof(unsigned long);
*cow_offset += bitmap_offset;
}
static void cowify_req(struct io_thread_req *req, unsigned long *bitmap,
__u64 bitmap_offset, __u64 bitmap_len)
{
__u64 sector = req->offset >> 9;
int i;
if(req->length > (sizeof(req->sector_mask) * 8) << 9)
panic("Operation too long");
if(req->op == UBD_READ) {
for(i = 0; i < req->length >> 9; i++){
if(ubd_test_bit(sector + i, (unsigned char *) bitmap))
ubd_set_bit(i, (unsigned char *)
&req->sector_mask);
}
}
else cowify_bitmap(req->offset, req->length, &req->sector_mask,
&req->cow_offset, bitmap, bitmap_offset,
req->bitmap_words, bitmap_len);
}
/* Called with ubd_io_lock held */
static int prepare_request(struct request *req, struct io_thread_req *io_req,
unsigned long long offset, int page_offset,
int len, struct page *page)
static int prepare_request(struct request *req, struct io_thread_req *io_req)
{
struct gendisk *disk = req->rq_disk;
struct ubd *dev = disk->private_data;
__u64 offset;
int len;
if(req->rq_status == RQ_INACTIVE) return(1);
/* This should be impossible now */
if((rq_data_dir(req) == WRITE) && !dev->openflags.w){
printk("Write attempted on readonly ubd device %s\n",
disk->disk_name);
ubd_end_request(req, 0, 0);
end_request(req, 0);
return(1);
}
offset = ((__u64) req->sector) << 9;
len = req->current_nr_sectors << 9;
io_req->fds[0] = (dev->cow.file != NULL) ? dev->cow.fd : dev->fd;
io_req->fds[1] = dev->fd;
io_req->cow_offset = -1;
io_req->offset = offset;
io_req->length = len;
io_req->error = 0;
io_req->op = (rq_data_dir(req) == READ) ? AIO_READ : AIO_WRITE;
io_req->sector_mask = 0;
io_req->op = (rq_data_dir(req) == READ) ? UBD_READ : UBD_WRITE;
io_req->offsets[0] = 0;
io_req->offsets[1] = dev->cow.data_offset;
io_req->buffer = page_address(page) + page_offset;
io_req->buffer = req->buffer;
io_req->sectorsize = 1 << 9;
io_req->bitmap_offset = dev->cow.bitmap_offset;
io_req->bitmap_start = -1;
io_req->bitmap_end = -1;
if((dev->cow.file != NULL) && (io_req->op == UBD_WRITE))
cowify_bitmap(io_req, dev->cow.bitmap);
if(dev->cow.file != NULL)
cowify_req(io_req, dev->cow.bitmap, dev->cow.bitmap_offset,
dev->cow.bitmap_len);
return(0);
}
@ -996,36 +1030,30 @@ static void do_ubd_request(request_queue_t *q)
{
struct io_thread_req io_req;
struct request *req;
__u64 sector;
int err;
int err, n;
if(in_ubd)
return;
in_ubd = 1;
while((req = elv_next_request(q)) != NULL){
struct gendisk *disk = req->rq_disk;
struct ubd *dev = disk->private_data;
int n, i;
blkdev_dequeue_request(req);
sector = req->sector;
n = blk_rq_map_sg(q, req, dev->sg);
for(i = 0; i < n; i++){
struct scatterlist *sg = &dev->sg[i];
err = prepare_request(req, &io_req, sector << 9,
sg->offset, sg->length,
sg->page);
if(err)
continue;
sector += sg->length >> 9;
do_io(&io_req, req, dev->cow.bitmap);
if(thread_fd == -1){
while((req = elv_next_request(q)) != NULL){
err = prepare_request(req, &io_req);
if(!err){
do_io(&io_req);
__ubd_finish(req, io_req.error);
}
}
}
else {
if(do_ubd || (req = elv_next_request(q)) == NULL)
return;
err = prepare_request(req, &io_req);
if(!err){
do_ubd = ubd_handler;
n = os_write_file(thread_fd, (char *) &io_req,
sizeof(io_req));
if(n != sizeof(io_req))
printk("write to io thread failed, "
"errno = %d\n", -n);
}
}
in_ubd = 0;
}
static int ubd_ioctl(struct inode * inode, struct file * file,
@ -1241,95 +1269,131 @@ int create_cow_file(char *cow_file, char *backing_file, struct openflags flags,
return(err);
}
void do_io(struct io_thread_req *req, struct request *r, unsigned long *bitmap)
static int update_bitmap(struct io_thread_req *req)
{
struct ubd_aio *aio;
struct bitmap_io *bitmap_io = NULL;
char *buf;
void *bitmap_buf = NULL;
unsigned long len, sector;
int nsectors, start, end, bit, err;
__u64 off;
int n;
if(req->bitmap_start != -1){
/* Round up to the nearest word */
int round = sizeof(unsigned long);
len = (req->bitmap_end - req->bitmap_start +
round * 8 - 1) / (round * 8);
len *= round;
if(req->cow_offset == -1)
return(0);
off = req->bitmap_start / (8 * round);
off *= round;
n = os_seek_file(req->fds[1], req->cow_offset);
if(n < 0){
printk("do_io - bitmap lseek failed : err = %d\n", -n);
return(1);
}
bitmap_io = kmalloc(sizeof(*bitmap_io), GFP_KERNEL);
if(bitmap_io == NULL){
printk("Failed to kmalloc bitmap IO\n");
req->error = 1;
return;
}
n = os_write_file(req->fds[1], &req->bitmap_words,
sizeof(req->bitmap_words));
if(n != sizeof(req->bitmap_words)){
printk("do_io - bitmap update failed, err = %d fd = %d\n", -n,
req->fds[1]);
return(1);
}
bitmap_buf = kmalloc(len, GFP_KERNEL);
if(bitmap_buf == NULL){
printk("do_io : kmalloc of bitmap chunk "
"failed\n");
kfree(bitmap_io);
req->error = 1;
return;
}
memcpy(bitmap_buf, &bitmap[off / sizeof(bitmap[0])], len);
*bitmap_io = ((struct bitmap_io)
{ .count = ATOMIC_INIT(0),
.aio = INIT_AIO(AIO_WRITE, req->fds[1],
bitmap_buf, len,
req->bitmap_offset + off,
ubd_reply_fd) } );
}
nsectors = req->length / req->sectorsize;
start = 0;
end = nsectors;
bit = 0;
do {
if(bitmap != NULL){
sector = req->offset / req->sectorsize;
bit = ubd_test_bit(sector + start, bitmap);
end = start;
while((end < nsectors) &&
(ubd_test_bit(sector + end, bitmap) == bit))
end++;
}
off = req->offsets[bit] + req->offset +
start * req->sectorsize;
len = (end - start) * req->sectorsize;
buf = &req->buffer[start * req->sectorsize];
aio = kmalloc(sizeof(*aio), GFP_KERNEL);
if(aio == NULL){
req->error = 1;
return;
}
*aio = ((struct ubd_aio)
{ .aio = INIT_AIO(req->op, req->fds[bit], buf,
len, off, ubd_reply_fd),
.len = len,
.req = r,
.bitmap = bitmap_io,
.bitmap_buf = bitmap_buf });
if(aio->bitmap != NULL)
atomic_inc(&aio->bitmap->count);
err = submit_aio(&aio->aio);
if(err){
printk("do_io - submit_aio failed, "
"err = %d\n", err);
req->error = 1;
return;
}
start = end;
} while(start < nsectors);
return(0);
}
void do_io(struct io_thread_req *req)
{
char *buf;
unsigned long len;
int n, nsectors, start, end, bit;
int err;
__u64 off;
nsectors = req->length / req->sectorsize;
start = 0;
do {
bit = ubd_test_bit(start, (unsigned char *) &req->sector_mask);
end = start;
while((end < nsectors) &&
(ubd_test_bit(end, (unsigned char *)
&req->sector_mask) == bit))
end++;
off = req->offset + req->offsets[bit] +
start * req->sectorsize;
len = (end - start) * req->sectorsize;
buf = &req->buffer[start * req->sectorsize];
err = os_seek_file(req->fds[bit], off);
if(err < 0){
printk("do_io - lseek failed : err = %d\n", -err);
req->error = 1;
return;
}
if(req->op == UBD_READ){
n = 0;
do {
buf = &buf[n];
len -= n;
n = os_read_file(req->fds[bit], buf, len);
if (n < 0) {
printk("do_io - read failed, err = %d "
"fd = %d\n", -n, req->fds[bit]);
req->error = 1;
return;
}
} while((n < len) && (n != 0));
if (n < len) memset(&buf[n], 0, len - n);
} else {
n = os_write_file(req->fds[bit], buf, len);
if(n != len){
printk("do_io - write failed err = %d "
"fd = %d\n", -n, req->fds[bit]);
req->error = 1;
return;
}
}
start = end;
} while(start < nsectors);
req->error = update_bitmap(req);
}
/* Changed in start_io_thread, which is serialized by being called only
* from ubd_init, which is an initcall.
*/
int kernel_fd = -1;
/* Only changed by the io thread */
int io_count = 0;
int io_thread(void *arg)
{
struct io_thread_req req;
int n;
ignore_sigwinch_sig();
while(1){
n = os_read_file(kernel_fd, &req, sizeof(req));
if(n != sizeof(req)){
if(n < 0)
printk("io_thread - read failed, fd = %d, "
"err = %d\n", kernel_fd, -n);
else {
printk("io_thread - short read, fd = %d, "
"length = %d\n", kernel_fd, n);
}
continue;
}
io_count++;
do_io(&req);
n = os_write_file(kernel_fd, &req, sizeof(req));
if(n != sizeof(req))
printk("io_thread - write failed, fd = %d, err = %d\n",
kernel_fd, -n);
}
}
/*
* Overrides for Emacs so that we follow Linus's tabbing style.
* Emacs will notice this stuff at the end of the file and automatically
* adjust the settings for this buffer only. This must remain at the end
* of the file.
* ---------------------------------------------------------------------------
* Local variables:
* c-file-style: "linux"
* End:
*/

75
arch/um/drivers/ubd_user.c Normal file
View File

@ -0,0 +1,75 @@
/*
* Copyright (C) 2000, 2001, 2002 Jeff Dike (jdike@karaya.com)
* Copyright (C) 2001 Ridgerun,Inc (glonnon@ridgerun.com)
* Licensed under the GPL
*/
#include <stddef.h>
#include <unistd.h>
#include <errno.h>
#include <sched.h>
#include <signal.h>
#include <string.h>
#include <netinet/in.h>
#include <sys/time.h>
#include <sys/socket.h>
#include <sys/mman.h>
#include <sys/param.h>
#include "asm/types.h"
#include "user_util.h"
#include "kern_util.h"
#include "user.h"
#include "ubd_user.h"
#include "os.h"
#include "cow.h"
#include <endian.h>
#include <byteswap.h>
void ignore_sigwinch_sig(void)
{
signal(SIGWINCH, SIG_IGN);
}
int start_io_thread(unsigned long sp, int *fd_out)
{
int pid, fds[2], err;
err = os_pipe(fds, 1, 1);
if(err < 0){
printk("start_io_thread - os_pipe failed, err = %d\n", -err);
goto out;
}
kernel_fd = fds[0];
*fd_out = fds[1];
pid = clone(io_thread, (void *) sp, CLONE_FILES | CLONE_VM | SIGCHLD,
NULL);
if(pid < 0){
printk("start_io_thread - clone failed : errno = %d\n", errno);
err = -errno;
goto out_close;
}
return(pid);
out_close:
os_close_file(fds[0]);
os_close_file(fds[1]);
kernel_fd = -1;
*fd_out = -1;
out:
return(err);
}
/*
* Overrides for Emacs so that we follow Linus's tabbing style.
* Emacs will notice this stuff at the end of the file and automatically
* adjust the settings for this buffer only. This must remain at the end
* of the file.
* ---------------------------------------------------------------------------
* Local variables:
* c-file-style: "linux"
* End:
*/

18
arch/um/include/aio.h
View File

@ -14,27 +14,15 @@ struct aio_thread_reply {
};
struct aio_context {
enum aio_type type;
int fd;
void *data;
int len;
unsigned long long offset;
int reply_fd;
struct aio_context *next;
};
#define INIT_AIO(aio_type, aio_fd, aio_data, aio_len, aio_offset, \
aio_reply_fd) \
{ .type = aio_type, \
.fd = aio_fd, \
.data = aio_data, \
.len = aio_len, \
.offset = aio_offset, \
.reply_fd = aio_reply_fd }
#define INIT_AIO_CONTEXT { .reply_fd = -1, \
.next = NULL }
extern int submit_aio(struct aio_context *aio);
extern int submit_aio(enum aio_type type, int fd, char *buf, int len,
unsigned long long offset, int reply_fd,
struct aio_context *aio);
#endif

5
arch/um/include/os.h
View File

@ -6,6 +6,7 @@
#ifndef __OS_H__
#define __OS_H__
#include "uml-config.h"
#include "asm/types.h"
#include "../os/include/file.h"
@ -159,7 +160,11 @@ extern int can_do_skas(void);
/* Make sure they are clear when running in TT mode. Required by
* SEGV_MAYBE_FIXABLE */
#ifdef UML_CONFIG_MODE_SKAS
#define clear_can_do_skas() do { ptrace_faultinfo = proc_mm = 0; } while (0)
#else
#define clear_can_do_skas() do {} while (0)
#endif
/* mem.c */
extern int create_mem_file(unsigned long len);

207
arch/um/os-Linux/aio.c
View File

@ -6,7 +6,6 @@
#include <stdlib.h>
#include <unistd.h>
#include <signal.h>
#include <string.h>
#include <errno.h>
#include <sched.h>
#include <sys/syscall.h>
@ -17,31 +16,18 @@
#include "user.h"
#include "mode.h"
struct aio_thread_req {
enum aio_type type;
int io_fd;
unsigned long long offset;
char *buf;
int len;
struct aio_context *aio;
};
static int aio_req_fd_r = -1;
static int aio_req_fd_w = -1;
static int update_aio(struct aio_context *aio, int res)
{
if(res < 0)
aio->len = res;
else if((res == 0) && (aio->type == AIO_READ)){
/* This is the EOF case - we have hit the end of the file
* and it ends in a partial block, so we fill the end of
* the block with zeros and claim success.
*/
memset(aio->data, 0, aio->len);
aio->len = 0;
}
else if(res > 0){
aio->len -= res;
aio->data += res;
aio->offset += res;
return aio->len;
}
return 0;
}
#if defined(HAVE_AIO_ABI)
#include <linux/aio_abi.h>
@ -80,7 +66,8 @@ static long io_getevents(aio_context_t ctx_id, long min_nr, long nr,
* that it now backs the mmapped area.
*/
static int do_aio(aio_context_t ctx, struct aio_context *aio)
static int do_aio(aio_context_t ctx, enum aio_type type, int fd, char *buf,
int len, unsigned long long offset, struct aio_context *aio)
{
struct iocb iocb, *iocbp = &iocb;
char c;
@ -88,39 +75,40 @@ static int do_aio(aio_context_t ctx, struct aio_context *aio)
iocb = ((struct iocb) { .aio_data = (unsigned long) aio,
.aio_reqprio = 0,
.aio_fildes = aio->fd,
.aio_buf = (unsigned long) aio->data,
.aio_nbytes = aio->len,
.aio_offset = aio->offset,
.aio_fildes = fd,
.aio_buf = (unsigned long) buf,
.aio_nbytes = len,
.aio_offset = offset,
.aio_reserved1 = 0,
.aio_reserved2 = 0,
.aio_reserved3 = 0 });
switch(aio->type){
switch(type){
case AIO_READ:
iocb.aio_lio_opcode = IOCB_CMD_PREAD;
err = io_submit(ctx, 1, &iocbp);
break;
case AIO_WRITE:
iocb.aio_lio_opcode = IOCB_CMD_PWRITE;
err = io_submit(ctx, 1, &iocbp);
break;
case AIO_MMAP:
iocb.aio_lio_opcode = IOCB_CMD_PREAD;
iocb.aio_buf = (unsigned long) &c;
iocb.aio_nbytes = sizeof(c);
err = io_submit(ctx, 1, &iocbp);
break;
default:
printk("Bogus op in do_aio - %d\n", aio->type);
printk("Bogus op in do_aio - %d\n", type);
err = -EINVAL;
goto out;
break;
}
err = io_submit(ctx, 1, &iocbp);
if(err > 0)
err = 0;
else
err = -errno;
out:
return err;
}
@ -129,9 +117,8 @@ static aio_context_t ctx = 0;
static int aio_thread(void *arg)
{
struct aio_thread_reply reply;
struct aio_context *aio;
struct io_event event;
int err, n;
int err, n, reply_fd;
signal(SIGWINCH, SIG_IGN);
@ -144,22 +131,14 @@ static int aio_thread(void *arg)
"errno = %d\n", errno);
}
else {
/* This is safe as we've just a pointer here. */
aio = (struct aio_context *) (long) event.data;
if(update_aio(aio, event.res)){
do_aio(ctx, aio);
continue;
}
reply = ((struct aio_thread_reply)
{ .data = aio,
.err = aio->len });
err = os_write_file(aio->reply_fd, &reply,
sizeof(reply));
{ .data = (void *) (long) event.data,
.err = event.res });
reply_fd = ((struct aio_context *) reply.data)->reply_fd;
err = os_write_file(reply_fd, &reply, sizeof(reply));
if(err != sizeof(reply))
printk("aio_thread - write failed, "
"fd = %d, err = %d\n", aio->reply_fd,
-err);
printk("aio_thread - write failed, fd = %d, "
"err = %d\n", aio_req_fd_r, -err);
}
}
return 0;
@ -167,35 +146,35 @@ static int aio_thread(void *arg)
#endif
static int do_not_aio(struct aio_context *aio)
static int do_not_aio(struct aio_thread_req *req)
{
char c;
int err;
switch(aio->type){
switch(req->type){
case AIO_READ:
err = os_seek_file(aio->fd, aio->offset);
err = os_seek_file(req->io_fd, req->offset);
if(err)
goto out;
err = os_read_file(aio->fd, aio->data, aio->len);
err = os_read_file(req->io_fd, req->buf, req->len);
break;
case AIO_WRITE:
err = os_seek_file(aio->fd, aio->offset);
err = os_seek_file(req->io_fd, req->offset);
if(err)
goto out;
err = os_write_file(aio->fd, aio->data, aio->len);
err = os_write_file(req->io_fd, req->buf, req->len);
break;
case AIO_MMAP:
err = os_seek_file(aio->fd, aio->offset);
err = os_seek_file(req->io_fd, req->offset);
if(err)
goto out;
err = os_read_file(aio->fd, &c, sizeof(c));
err = os_read_file(req->io_fd, &c, sizeof(c));
break;
default:
printk("do_not_aio - bad request type : %d\n", aio->type);
printk("do_not_aio - bad request type : %d\n", req->type);
err = -EINVAL;
break;
}
@ -206,14 +185,14 @@ static int do_not_aio(struct aio_context *aio)
static int not_aio_thread(void *arg)
{
struct aio_context *aio;
struct aio_thread_req req;
struct aio_thread_reply reply;
int err;
signal(SIGWINCH, SIG_IGN);
while(1){
err = os_read_file(aio_req_fd_r, &aio, sizeof(aio));
if(err != sizeof(aio)){
err = os_read_file(aio_req_fd_r, &req, sizeof(req));
if(err != sizeof(req)){
if(err < 0)
printk("not_aio_thread - read failed, "
"fd = %d, err = %d\n", aio_req_fd_r,
@ -224,34 +203,17 @@ static int not_aio_thread(void *arg)
}
continue;
}
again:
err = do_not_aio(aio);
if(update_aio(aio, err))
goto again;
reply = ((struct aio_thread_reply) { .data = aio,
.err = aio->len });
err = os_write_file(aio->reply_fd, &reply, sizeof(reply));
err = do_not_aio(&req);
reply = ((struct aio_thread_reply) { .data = req.aio,
.err = err });
err = os_write_file(req.aio->reply_fd, &reply, sizeof(reply));
if(err != sizeof(reply))
printk("not_aio_thread - write failed, fd = %d, "
"err = %d\n", aio_req_fd_r, -err);
}
}
static int submit_aio_24(struct aio_context *aio)
{
int err;
err = os_write_file(aio_req_fd_w, &aio, sizeof(aio));
if(err == sizeof(aio))
err = 0;
return err;
}
static int aio_pid = -1;
static int (*submit_proc)(struct aio_context *aio);
static int init_aio_24(void)
{
@ -283,33 +245,11 @@ static int init_aio_24(void)
#endif
printk("2.6 host AIO support not used - falling back to I/O "
"thread\n");
submit_proc = submit_aio_24;
return 0;
}
#ifdef HAVE_AIO_ABI
#define DEFAULT_24_AIO 0
static int submit_aio_26(struct aio_context *aio)
{
struct aio_thread_reply reply;
int err;
err = do_aio(ctx, aio);
if(err){
reply = ((struct aio_thread_reply) { .data = aio,
.err = err });
err = os_write_file(aio->reply_fd, &reply, sizeof(reply));
if(err != sizeof(reply))
printk("submit_aio_26 - write failed, "
"fd = %d, err = %d\n", aio->reply_fd, -err);
else err = 0;
}
return err;
}
static int init_aio_26(void)
{
unsigned long stack;
@ -330,22 +270,39 @@ static int init_aio_26(void)
aio_pid = err;
printk("Using 2.6 host AIO\n");
submit_proc = submit_aio_26;
return 0;
}
static int submit_aio_26(enum aio_type type, int io_fd, char *buf, int len,
unsigned long long offset, struct aio_context *aio)
{
struct aio_thread_reply reply;
int err;
err = do_aio(ctx, type, io_fd, buf, len, offset, aio);
if(err){
reply = ((struct aio_thread_reply) { .data = aio,
.err = err });
err = os_write_file(aio->reply_fd, &reply, sizeof(reply));
if(err != sizeof(reply))
printk("submit_aio_26 - write failed, "
"fd = %d, err = %d\n", aio->reply_fd, -err);
else err = 0;
}
return err;
}
#else
#define DEFAULT_24_AIO 1
static int submit_aio_26(struct aio_context *aio)
static int init_aio_26(void)
{
return -ENOSYS;
}
static int init_aio_26(void)
static int submit_aio_26(enum aio_type type, int io_fd, char *buf, int len,
unsigned long long offset, struct aio_context *aio)
{
submit_proc = submit_aio_26;
return -ENOSYS;
}
#endif
@ -412,7 +369,33 @@ static void exit_aio(void)
__uml_exitcall(exit_aio);
int submit_aio(struct aio_context *aio)
static int submit_aio_24(enum aio_type type, int io_fd, char *buf, int len,
unsigned long long offset, struct aio_context *aio)
{
return (*submit_proc)(aio);
struct aio_thread_req req = { .type = type,
.io_fd = io_fd,
.offset = offset,
.buf = buf,
.len = len,
.aio = aio,
};
int err;
err = os_write_file(aio_req_fd_w, &req, sizeof(req));
if(err == sizeof(req))
err = 0;
return err;
}
int submit_aio(enum aio_type type, int io_fd, char *buf, int len,
unsigned long long offset, int reply_fd,
struct aio_context *aio)
{
aio->reply_fd = reply_fd;
if(aio_24)
return submit_aio_24(type, io_fd, buf, len, offset, aio);
else {
return submit_aio_26(type, io_fd, buf, len, offset, aio);
}
}

11
arch/um/os-Linux/start_up.c
View File

@ -143,11 +143,22 @@ static int __init skas0_cmd_param(char *str, int* add)
return 0;
}
/* The two __uml_setup would conflict, without this stupid alias. */
static int __init mode_skas0_cmd_param(char *str, int* add)
__attribute__((alias("skas0_cmd_param")));
__uml_setup("skas0", skas0_cmd_param,
"skas0\n"
" Disables SKAS3 usage, so that SKAS0 is used, unless \n"
" you specify mode=tt.\n\n");
__uml_setup("mode=skas0", mode_skas0_cmd_param,
"mode=skas0\n"
" Disables SKAS3 usage, so that SKAS0 is used, unless you \n"
" specify mode=tt. Note that this was recently added - on \n"
" older kernels you must use simply \"skas0\".\n\n");
static int force_sysemu_disabled = 0;
static int __init nosysemu_cmd_param(char *str, int* add)

4
arch/um/scripts/Makefile.rules
View File

@ -7,8 +7,8 @@ USER_SINGLE_OBJS := \
USER_OBJS += $(filter %_user.o,$(obj-y) $(obj-m) $(USER_SINGLE_OBJS))
USER_OBJS := $(foreach file,$(USER_OBJS),$(obj)/$(file))
$(USER_OBJS) : c_flags = -Wp,-MD,$(depfile) $(USER_CFLAGS) \
$(CFLAGS_$(notdir $@))
$(USER_OBJS) $(USER_OBJS:.o=.i) $(USER_OBJS:.o=.s) $(USER_OBJS:.o=.lst): \
c_flags = -Wp,-MD,$(depfile) $(USER_CFLAGS) $(CFLAGS_$(notdir $@))
$(USER_OBJS): cmd_checksrc =
$(USER_OBJS): quiet_cmd_checksrc =
$(USER_OBJS): cmd_force_checksrc =

37
arch/um/sys-x86_64/stub_segv.c
View File

@ -10,6 +10,22 @@
#include "uml-config.h"
#include "sysdep/sigcontext.h"
#include "sysdep/faultinfo.h"
#include <stddef.h>
/* Copied from sys-x86_64/signal.c - Can't find an equivalent definition
* in the libc headers anywhere.
*/
struct rt_sigframe
{
char *pretcode;
struct ucontext uc;
struct siginfo info;
};
/* Copied here from <linux/kernel.h> - we're userspace. */
#define container_of(ptr, type, member) ({ \
const typeof( ((type *)0)->member ) *__mptr = (ptr); \
(type *)( (char *)__mptr - offsetof(type,member) );})
void __attribute__ ((__section__ (".__syscall_stub")))
stub_segv_handler(int sig)
@ -17,16 +33,19 @@ stub_segv_handler(int sig)
struct ucontext *uc;
__asm__("movq %%rdx, %0" : "=g" (uc) :);
GET_FAULTINFO_FROM_SC(*((struct faultinfo *) UML_CONFIG_STUB_DATA),
&uc->uc_mcontext);
GET_FAULTINFO_FROM_SC(*((struct faultinfo *) UML_CONFIG_STUB_DATA),
&uc->uc_mcontext);
__asm__("movq %0, %%rax ; syscall": : "g" (__NR_getpid));
__asm__("movq %0, %%rax ; syscall": : "g" (__NR_getpid));
__asm__("movq %%rax, %%rdi ; movq %0, %%rax ; movq %1, %%rsi ;"
"syscall": : "g" (__NR_kill), "g" (SIGUSR1));
/* Two popqs to restore the stack to the state just before entering
* the handler, one pops the return address, the other pops the frame
* pointer.
"syscall": : "g" (__NR_kill), "g" (SIGUSR1) :
"%rdi", "%rax", "%rsi");
/* sys_sigreturn expects that the stack pointer will be 8 bytes into
* the signal frame. So, we use the ucontext pointer, which we know
* already, to get the signal frame pointer, and add 8 to that.
*/
__asm__("popq %%rax ; popq %%rax ; movq %0, %%rax ; syscall" : : "g"
(__NR_rt_sigreturn));
__asm__("movq %0, %%rsp": :
"g" ((unsigned long) container_of(uc, struct rt_sigframe,
uc) + 8));
__asm__("movq %0, %%rax ; syscall" : : "g" (__NR_rt_sigreturn));
}

6
arch/x86_64/ia32/ia32_signal.c
View File

@ -425,7 +425,11 @@ get_sigframe(struct k_sigaction *ka, struct pt_regs * regs, size_t frame_size)
rsp = (unsigned long) ka->sa.sa_restorer;
}
return (void __user *)((rsp - frame_size) & -8UL);
rsp -= frame_size;
/* Align the stack pointer according to the i386 ABI,
* i.e. so that on function entry ((sp + 4) & 15) == 0. */
rsp = ((rsp + 4) & -16ul) - 4;
return (void __user *) rsp;
}
int ia32_setup_frame(int sig, struct k_sigaction *ka,

4
arch/x86_64/kernel/setup64.c
View File

@ -87,6 +87,10 @@ void __init setup_per_cpu_areas(void)
int i;
unsigned long size;
#ifdef CONFIG_HOTPLUG_CPU
prefill_possible_map();
#endif
/* Copy section for each CPU (we discard the original) */
size = ALIGN(__per_cpu_end - __per_cpu_start, SMP_CACHE_BYTES);
#ifdef CONFIG_MODULES

6
arch/x86_64/kernel/smpboot.c
View File

@ -892,7 +892,7 @@ static __init void disable_smp(void)
* those NR_CPUS, hence cpu_possible_map represents entire NR_CPUS range.
* - Ashok Raj
*/
static void prefill_possible_map(void)
__init void prefill_possible_map(void)
{
int i;
for (i = 0; i < NR_CPUS; i++)
@ -967,10 +967,6 @@ void __init smp_prepare_cpus(unsigned int max_cpus)
current_cpu_data = boot_cpu_data;
current_thread_info()->cpu = 0; /* needed? */
#ifdef CONFIG_HOTPLUG_CPU
prefill_possible_map();
#endif
if (smp_sanity_check(max_cpus) < 0) {
printk(KERN_INFO "SMP disabled\n");
disable_smp();

127
arch/x86_64/kernel/suspend.c
View File

@ -11,6 +11,8 @@
#include <linux/smp.h>
#include <linux/suspend.h>
#include <asm/proto.h>
#include <asm/page.h>
#include <asm/pgtable.h>
struct saved_context saved_context;
@ -140,4 +142,129 @@ void fix_processor_context(void)
}
#ifdef CONFIG_SOFTWARE_SUSPEND
/* Defined in arch/x86_64/kernel/suspend_asm.S */
extern int restore_image(void);
pgd_t *temp_level4_pgt;
static void **pages;
static inline void *__add_page(void)
{
void **c;
c = (void **)get_usable_page(GFP_ATOMIC);
if (c) {
*c = pages;
pages = c;
}
return c;
}
static inline void *__next_page(void)
{
void **c;
c = pages;
if (c) {
pages = *c;
*c = NULL;
}
return c;
}
/*
* Try to allocate as many usable pages as needed and daisy chain them.
* If one allocation fails, free the pages allocated so far
*/
static int alloc_usable_pages(unsigned long n)
{
void *p;
pages = NULL;
do
if (!__add_page())
break;
while (--n);
if (n) {
p = __next_page();
while (p) {
free_page((unsigned long)p);
p = __next_page();
}
return -ENOMEM;
}
return 0;
}
static void res_phys_pud_init(pud_t *pud, unsigned long address, unsigned long end)
{
long i, j;
i = pud_index(address);
pud = pud + i;
for (; i < PTRS_PER_PUD; pud++, i++) {
unsigned long paddr;
pmd_t *pmd;
paddr = address + i*PUD_SIZE;
if (paddr >= end)
break;
pmd = (pmd_t *)__next_page();
set_pud(pud, __pud(__pa(pmd) | _KERNPG_TABLE));
for (j = 0; j < PTRS_PER_PMD; pmd++, j++, paddr += PMD_SIZE) {
unsigned long pe;
if (paddr >= end)
break;
pe = _PAGE_NX | _PAGE_PSE | _KERNPG_TABLE | paddr;
pe &= __supported_pte_mask;
set_pmd(pmd, __pmd(pe));
}
}
}
static void set_up_temporary_mappings(void)
{
unsigned long start, end, next;
temp_level4_pgt = (pgd_t *)__next_page();
/* It is safe to reuse the original kernel mapping */
set_pgd(temp_level4_pgt + pgd_index(__START_KERNEL_map),
init_level4_pgt[pgd_index(__START_KERNEL_map)]);
/* Set up the direct mapping from scratch */
start = (unsigned long)pfn_to_kaddr(0);
end = (unsigned long)pfn_to_kaddr(end_pfn);
for (; start < end; start = next) {
pud_t *pud = (pud_t *)__next_page();
next = start + PGDIR_SIZE;
if (next > end)
next = end;
res_phys_pud_init(pud, __pa(start), __pa(next));
set_pgd(temp_level4_pgt + pgd_index(start),
mk_kernel_pgd(__pa(pud)));
}
}
int swsusp_arch_resume(void)
{
unsigned long n;
n = ((end_pfn << PAGE_SHIFT) + PUD_SIZE - 1) >> PUD_SHIFT;
n += (n + PTRS_PER_PUD - 1) / PTRS_PER_PUD + 1;
pr_debug("swsusp_arch_resume(): pages needed = %lu\n", n);
if (alloc_usable_pages(n)) {
free_eaten_memory();
return -ENOMEM;
}
/* We have got enough memory and from now on we cannot recover */
set_up_temporary_mappings();
restore_image();
return 0;
}
#endif /* CONFIG_SOFTWARE_SUSPEND */

17
arch/x86_64/kernel/suspend_asm.S
View File

@ -39,12 +39,13 @@ ENTRY(swsusp_arch_suspend)
call swsusp_save
ret
ENTRY(swsusp_arch_resume)
/* set up cr3 */
leaq init_level4_pgt(%rip),%rax
subq $__START_KERNEL_map,%rax
movq %rax,%cr3
ENTRY(restore_image)
/* switch to temporary page tables */
movq $__PAGE_OFFSET, %rdx
movq temp_level4_pgt(%rip), %rax
subq %rdx, %rax
movq %rax, %cr3
/* Flush TLB */
movq mmu_cr4_features(%rip), %rax
movq %rax, %rdx
andq $~(1<<7), %rdx # PGE
@ -69,6 +70,10 @@ loop:
movq pbe_next(%rdx), %rdx
jmp loop
done:
/* go back to the original page tables */
leaq init_level4_pgt(%rip), %rax
subq $__START_KERNEL_map, %rax
movq %rax, %cr3
/* Flush TLB, including "global" things (vmalloc) */
movq mmu_cr4_features(%rip), %rax
movq %rax, %rdx

2
arch/x86_64/mm/pageattr.c
View File

@ -220,8 +220,6 @@ void global_flush_tlb(void)
down_read(&init_mm.mmap_sem);
df = xchg(&df_list, NULL);
up_read(&init_mm.mmap_sem);
if (!df)
return;
flush_map((df && !df->next) ? df->address : 0);
for (; df; df = next_df) {
next_df = df->next;

2
drivers/atm/ambassador.c
View File

@ -795,7 +795,7 @@ static void drain_rx_pools (amb_dev * dev) {
}
static inline void fill_rx_pool (amb_dev * dev, unsigned char pool,
unsigned int __nocast priority)
gfp_t priority)
{
rx_in rx;
amb_rxq * rxq;

5
drivers/atm/firestream.c
View File

@ -1374,8 +1374,7 @@ static void reset_chip (struct fs_dev *dev)
}
}
static void __devinit *aligned_kmalloc (int size, unsigned int __nocast flags,
int alignment)
static void __devinit *aligned_kmalloc (int size, gfp_t flags, int alignment)
{
void *t;
@ -1466,7 +1465,7 @@ static inline int nr_buffers_in_freepool (struct fs_dev *dev, struct freepool *f
working again after that... -- REW */
static void top_off_fp (struct fs_dev *dev, struct freepool *fp,
unsigned int __nocast gfp_flags)
gfp_t gfp_flags)
{
struct FS_BPENTRY *qe, *ne;
struct sk_buff *skb;

10
drivers/atm/fore200e.c
View File

@ -178,14 +178,12 @@ fore200e_irq_itoa(int irq)
static void*
fore200e_kmalloc(int size, int flags)
fore200e_kmalloc(int size, gfp_t flags)
{
void* chunk = kmalloc(size, flags);
void *chunk = kzalloc(size, flags);
if (chunk)
memset(chunk, 0x00, size);
else
printk(FORE200E "kmalloc() failed, requested size = %d, flags = 0x%x\n", size, flags);
if (!chunk)
printk(FORE200E "kmalloc() failed, requested size = %d, flags = 0x%x\n", size, flags);
return chunk;
}

5
drivers/base/dmapool.c
View File

@ -156,7 +156,7 @@ dma_pool_create (const char *name, struct device *dev,
static struct dma_page *
pool_alloc_page (struct dma_pool *pool, unsigned int __nocast mem_flags)
pool_alloc_page (struct dma_pool *pool, gfp_t mem_flags)
{
struct dma_page *page;
int mapsize;
@ -262,8 +262,7 @@ dma_pool_destroy (struct dma_pool *pool)
* If such a memory block can't be allocated, null is returned.
*/
void *
dma_pool_alloc (struct dma_pool *pool, unsigned int __nocast mem_flags,
dma_addr_t *handle)
dma_pool_alloc (struct dma_pool *pool, gfp_t mem_flags, dma_addr_t *handle)
{
unsigned long flags;
struct dma_page *page;

4
drivers/block/pktcdvd.c
View File

@ -229,7 +229,7 @@ static int pkt_grow_pktlist(struct pktcdvd_device *pd, int nr_packets)
return 1;
}
static void *pkt_rb_alloc(unsigned int __nocast gfp_mask, void *data)
static void *pkt_rb_alloc(gfp_t gfp_mask, void *data)
{
return kmalloc(sizeof(struct pkt_rb_node), gfp_mask);
}
@ -2082,7 +2082,7 @@ static int pkt_close(struct inode *inode, struct file *file)
}
static void *psd_pool_alloc(unsigned int __nocast gfp_mask, void *data)
static void *psd_pool_alloc(gfp_t gfp_mask, void *data)
{
return kmalloc(sizeof(struct packet_stacked_data), gfp_mask);
}

8
drivers/block/scsi_ioctl.c
View File

@ -201,15 +201,15 @@ static int verify_command(struct file *file, unsigned char *cmd)
return 0;
}
/* And root can do any command.. */
if (capable(CAP_SYS_RAWIO))
return 0;
if (!type) {
cmd_type[cmd[0]] = CMD_WARNED;
printk(KERN_WARNING "scsi: unknown opcode 0x%02x\n", cmd[0]);
}
/* And root can do any command.. */
if (capable(CAP_SYS_RAWIO))
return 0;
/* Otherwise fail it with an "Operation not permitted" */
return -EPERM;
}

2
drivers/bluetooth/bpa10x.c
View File

@ -308,7 +308,7 @@ unlock:
}
static inline struct urb *bpa10x_alloc_urb(struct usb_device *udev, unsigned int pipe,
size_t size, unsigned int __nocast flags, void *data)
size_t size, gfp_t flags, void *data)
{
struct urb *urb;
struct usb_ctrlrequest *cr;

2
drivers/bluetooth/hci_usb.c
View File

@ -132,7 +132,7 @@ static struct usb_device_id blacklist_ids[] = {
{ } /* Terminating entry */
};
static struct _urb *_urb_alloc(int isoc, unsigned int __nocast gfp)
static struct _urb *_urb_alloc(int isoc, gfp_t gfp)
{
struct _urb *_urb = kmalloc(sizeof(struct _urb) +
sizeof(struct usb_iso_packet_descriptor) * isoc, gfp);

2
drivers/char/drm/drm_stub.c
View File

@ -47,7 +47,7 @@ MODULE_PARM_DESC(cards_limit, "Maximum number of graphics cards");
MODULE_PARM_DESC(debug, "Enable debug output");
module_param_named(cards_limit, drm_cards_limit, int, 0444);
module_param_named(debug, drm_debug, int, 0666);
module_param_named(debug, drm_debug, int, 0600);
drm_head_t **drm_heads;
struct drm_sysfs_class *drm_class;

1
drivers/char/s3c2410-rtc.c
View File

@ -564,6 +564,7 @@ static int s3c2410_rtc_resume(struct device *dev, u32 level)
static struct device_driver s3c2410_rtcdrv = {
.name = "s3c2410-rtc",
.owner = THIS_MODULE,
.bus = &platform_bus_type,
.probe = s3c2410_rtc_probe,
.remove = s3c2410_rtc_remove,

239
drivers/char/watchdog/pcwd_pci.c
View File

@ -50,8 +50,8 @@
#include <asm/io.h> /* For inb/outb/... */
/* Module and version information */
#define WATCHDOG_VERSION "1.01"
#define WATCHDOG_DATE "02 Sep 2005"
#define WATCHDOG_VERSION "1.02"
#define WATCHDOG_DATE "03 Sep 2005"
#define WATCHDOG_DRIVER_NAME "PCI-PC Watchdog"
#define WATCHDOG_NAME "pcwd_pci"
#define PFX WATCHDOG_NAME ": "
@ -70,19 +70,30 @@
* These are the defines that describe the control status bits for the
* PCI-PC Watchdog card.
*/
#define WD_PCI_WTRP 0x01 /* Watchdog Trip status */
#define WD_PCI_HRBT 0x02 /* Watchdog Heartbeat */
#define WD_PCI_TTRP 0x04 /* Temperature Trip status */
/* Port 1 : Control Status #1 */
#define WD_PCI_WTRP 0x01 /* Watchdog Trip status */
#define WD_PCI_HRBT 0x02 /* Watchdog Heartbeat */
#define WD_PCI_TTRP 0x04 /* Temperature Trip status */
#define WD_PCI_RL2A 0x08 /* Relay 2 Active */
#define WD_PCI_RL1A 0x10 /* Relay 1 Active */
#define WD_PCI_R2DS 0x40 /* Relay 2 Disable Temperature-trip/reset */
#define WD_PCI_RLY2 0x80 /* Activate Relay 2 on the board */
/* Port 2 : Control Status #2 */
#define WD_PCI_WDIS 0x10 /* Watchdog Disable */
#define WD_PCI_ENTP 0x20 /* Enable Temperature Trip Reset */
#define WD_PCI_WRSP 0x40 /* Watchdog wrote response */
#define WD_PCI_PCMD 0x80 /* PC has sent command */
/* according to documentation max. time to process a command for the pci
* watchdog card is 100 ms, so we give it 150 ms to do it's job */
#define PCI_COMMAND_TIMEOUT 150
/* Watchdog's internal commands */
#define CMD_GET_STATUS 0x04
#define CMD_GET_FIRMWARE_VERSION 0x08
#define CMD_READ_WATCHDOG_TIMEOUT 0x18
#define CMD_WRITE_WATCHDOG_TIMEOUT 0x19
#define CMD_GET_STATUS 0x04
#define CMD_GET_FIRMWARE_VERSION 0x08
#define CMD_READ_WATCHDOG_TIMEOUT 0x18
#define CMD_WRITE_WATCHDOG_TIMEOUT 0x19
#define CMD_GET_CLEAR_RESET_COUNT 0x84
/* We can only use 1 card due to the /dev/watchdog restriction */
static int cards_found;
@ -91,15 +102,22 @@ static int cards_found;
static int temp_panic;
static unsigned long is_active;
static char expect_release;
static struct {
int supports_temp; /* Wether or not the card has a temperature device */
int boot_status; /* The card's boot status */
unsigned long io_addr; /* The cards I/O address */
spinlock_t io_lock;
struct pci_dev *pdev;
static struct { /* this is private data for each PCI-PC watchdog card */
int supports_temp; /* Wether or not the card has a temperature device */
int boot_status; /* The card's boot status */
unsigned long io_addr; /* The cards I/O address */
spinlock_t io_lock; /* the lock for io operations */
struct pci_dev *pdev; /* the PCI-device */
} pcipcwd_private;
/* module parameters */
#define QUIET 0 /* Default */
#define VERBOSE 1 /* Verbose */
#define DEBUG 2 /* print fancy stuff too */
static int debug = QUIET;
module_param(debug, int, 0);
MODULE_PARM_DESC(debug, "Debug level: 0=Quiet, 1=Verbose, 2=Debug (default=0)");
#define WATCHDOG_HEARTBEAT 2 /* 2 sec default heartbeat */
static int heartbeat = WATCHDOG_HEARTBEAT;
module_param(heartbeat, int, 0);
@ -117,6 +135,10 @@ static int send_command(int cmd, int *msb, int *lsb)
{
int got_response, count;
if (debug >= DEBUG)
printk(KERN_DEBUG PFX "sending following data cmd=0x%02x msb=0x%02x lsb=0x%02x\n",
cmd, *msb, *lsb);
spin_lock(&pcipcwd_private.io_lock);
/* If a command requires data it should be written first.
* Data for commands with 8 bits of data should be written to port 4.
@ -131,10 +153,19 @@ static int send_command(int cmd, int *msb, int *lsb)
/* wait till the pci card processed the command, signaled by
* the WRSP bit in port 2 and give it a max. timeout of
* PCI_COMMAND_TIMEOUT to process */
got_response = inb_p(pcipcwd_private.io_addr + 2) & 0x40;
got_response = inb_p(pcipcwd_private.io_addr + 2) & WD_PCI_WRSP;
for (count = 0; (count < PCI_COMMAND_TIMEOUT) && (!got_response); count++) {
mdelay(1);
got_response = inb_p(pcipcwd_private.io_addr + 2) & 0x40;
got_response = inb_p(pcipcwd_private.io_addr + 2) & WD_PCI_WRSP;
}
if (debug >= DEBUG) {
if (got_response) {
printk(KERN_DEBUG PFX "time to process command was: %d ms\n",
count);
} else {
printk(KERN_DEBUG PFX "card did not respond on command!\n");
}
}
if (got_response) {
@ -144,12 +175,66 @@ static int send_command(int cmd, int *msb, int *lsb)
/* clear WRSP bit */
inb_p(pcipcwd_private.io_addr + 6);
if (debug >= DEBUG)
printk(KERN_DEBUG PFX "received following data for cmd=0x%02x: msb=0x%02x lsb=0x%02x\n",
cmd, *msb, *lsb);
}
spin_unlock(&pcipcwd_private.io_lock);
return got_response;
}
static inline void pcipcwd_check_temperature_support(void)
{
if (inb_p(pcipcwd_private.io_addr) != 0xF0)
pcipcwd_private.supports_temp = 1;
}
static int pcipcwd_get_option_switches(void)
{
int option_switches;
option_switches = inb_p(pcipcwd_private.io_addr + 3);
return option_switches;
}
static void pcipcwd_show_card_info(void)
{
int got_fw_rev, fw_rev_major, fw_rev_minor;
char fw_ver_str[20]; /* The cards firmware version */
int option_switches;
got_fw_rev = send_command(CMD_GET_FIRMWARE_VERSION, &fw_rev_major, &fw_rev_minor);
if (got_fw_rev) {
sprintf(fw_ver_str, "%u.%02u", fw_rev_major, fw_rev_minor);
} else {
sprintf(fw_ver_str, "<card no answer>");
}
/* Get switch settings */
option_switches = pcipcwd_get_option_switches();
printk(KERN_INFO PFX "Found card at port 0x%04x (Firmware: %s) %s temp option\n",
(int) pcipcwd_private.io_addr, fw_ver_str,
(pcipcwd_private.supports_temp ? "with" : "without"));
printk(KERN_INFO PFX "Option switches (0x%02x): Temperature Reset Enable=%s, Power On Delay=%s\n",
option_switches,
((option_switches & 0x10) ? "ON" : "OFF"),
((option_switches & 0x08) ? "ON" : "OFF"));
if (pcipcwd_private.boot_status & WDIOF_CARDRESET)
printk(KERN_INFO PFX "Previous reset was caused by the Watchdog card\n");
if (pcipcwd_private.boot_status & WDIOF_OVERHEAT)
printk(KERN_INFO PFX "Card sensed a CPU Overheat\n");
if (pcipcwd_private.boot_status == 0)
printk(KERN_INFO PFX "No previous trip detected - Cold boot or reset\n");
}
static int pcipcwd_start(void)
{
int stat_reg;
@ -161,11 +246,14 @@ static int pcipcwd_start(void)
stat_reg = inb_p(pcipcwd_private.io_addr + 2);
spin_unlock(&pcipcwd_private.io_lock);
if (stat_reg & 0x10) {
if (stat_reg & WD_PCI_WDIS) {
printk(KERN_ERR PFX "Card timer not enabled\n");
return -1;
}
if (debug >= VERBOSE)
printk(KERN_DEBUG PFX "Watchdog started\n");
return 0;
}
@ -183,18 +271,25 @@ static int pcipcwd_stop(void)
stat_reg = inb_p(pcipcwd_private.io_addr + 2);
spin_unlock(&pcipcwd_private.io_lock);
if (!(stat_reg & 0x10)) {
if (!(stat_reg & WD_PCI_WDIS)) {
printk(KERN_ERR PFX "Card did not acknowledge disable attempt\n");
return -1;
}
if (debug >= VERBOSE)
printk(KERN_DEBUG PFX "Watchdog stopped\n");
return 0;
}
static int pcipcwd_keepalive(void)
{
/* Re-trigger watchdog by writing to port 0 */
outb_p(0x42, pcipcwd_private.io_addr);
outb_p(0x42, pcipcwd_private.io_addr); /* send out any data */
if (debug >= DEBUG)
printk(KERN_DEBUG PFX "Watchdog keepalive signal send\n");
return 0;
}
@ -210,29 +305,64 @@ static int pcipcwd_set_heartbeat(int t)
send_command(CMD_WRITE_WATCHDOG_TIMEOUT, &t_msb, &t_lsb);
heartbeat = t;
if (debug >= VERBOSE)
printk(KERN_DEBUG PFX "New heartbeat: %d\n",
heartbeat);
return 0;
}
static int pcipcwd_get_status(int *status)
{
int new_status;
int control_status;
*status=0;
new_status = inb_p(pcipcwd_private.io_addr + 1);
if (new_status & WD_PCI_WTRP)
control_status = inb_p(pcipcwd_private.io_addr + 1);
if (control_status & WD_PCI_WTRP)
*status |= WDIOF_CARDRESET;
if (new_status & WD_PCI_TTRP) {
if (control_status & WD_PCI_TTRP) {
*status |= WDIOF_OVERHEAT;
if (temp_panic)
panic(PFX "Temperature overheat trip!\n");
}
if (debug >= DEBUG)
printk(KERN_DEBUG PFX "Control Status #1: 0x%02x\n",
control_status);
return 0;
}
static int pcipcwd_clear_status(void)
{
outb_p(0x01, pcipcwd_private.io_addr + 1);
int control_status;
int msb;
int reset_counter;
if (debug >= VERBOSE)
printk(KERN_INFO PFX "clearing watchdog trip status & LED\n");
control_status = inb_p(pcipcwd_private.io_addr + 1);
if (debug >= DEBUG) {
printk(KERN_DEBUG PFX "status was: 0x%02x\n", control_status);
printk(KERN_DEBUG PFX "sending: 0x%02x\n",
(control_status & WD_PCI_R2DS) | WD_PCI_WTRP);
}
/* clear trip status & LED and keep mode of relay 2 */
outb_p((control_status & WD_PCI_R2DS) | WD_PCI_WTRP, pcipcwd_private.io_addr + 1);
/* clear reset counter */
msb=0;
reset_counter=0xff;
send_command(CMD_GET_CLEAR_RESET_COUNT, &msb, &reset_counter);
if (debug >= DEBUG) {
printk(KERN_DEBUG PFX "reset count was: 0x%02x\n",
reset_counter);
}
return 0;
}
@ -242,11 +372,18 @@ static int pcipcwd_get_temperature(int *temperature)
if (!pcipcwd_private.supports_temp)
return -ENODEV;
*temperature = inb_p(pcipcwd_private.io_addr);
/*
* Convert celsius to fahrenheit, since this was
* the decided 'standard' for this return value.
*/
*temperature = ((inb_p(pcipcwd_private.io_addr)) * 9 / 5) + 32;
*temperature = (*temperature * 9 / 5) + 32;
if (debug >= DEBUG) {
printk(KERN_DEBUG PFX "temperature is: %d F\n",
*temperature);
}
return 0;
}
@ -256,7 +393,7 @@ static int pcipcwd_get_temperature(int *temperature)
*/
static ssize_t pcipcwd_write(struct file *file, const char __user *data,
size_t len, loff_t *ppos)
size_t len, loff_t *ppos)
{
/* See if we got the magic character 'V' and reload the timer */
if (len) {
@ -381,8 +518,11 @@ static int pcipcwd_ioctl(struct inode *inode, struct file *file,
static int pcipcwd_open(struct inode *inode, struct file *file)
{
/* /dev/watchdog can only be opened once */
if (test_and_set_bit(0, &is_active))
if (test_and_set_bit(0, &is_active)) {
if (debug >= VERBOSE)
printk(KERN_ERR PFX "Attempt to open already opened device.\n");
return -EBUSY;
}
/* Activate */
pcipcwd_start();
@ -492,19 +632,10 @@ static struct notifier_block pcipcwd_notifier = {
* Init & exit routines
*/
static inline void check_temperature_support(void)
{
if (inb_p(pcipcwd_private.io_addr) != 0xF0)
pcipcwd_private.supports_temp = 1;
}
static int __devinit pcipcwd_card_init(struct pci_dev *pdev,
const struct pci_device_id *ent)
{
int ret = -EIO;
int got_fw_rev, fw_rev_major, fw_rev_minor;
char fw_ver_str[20];
char option_switches;
cards_found++;
if (cards_found == 1)
@ -546,36 +677,10 @@ static int __devinit pcipcwd_card_init(struct pci_dev *pdev,
pcipcwd_stop();
/* Check whether or not the card supports the temperature device */
check_temperature_support();
pcipcwd_check_temperature_support();
/* Get the Firmware Version */
got_fw_rev = send_command(CMD_GET_FIRMWARE_VERSION, &fw_rev_major, &fw_rev_minor);
if (got_fw_rev) {
sprintf(fw_ver_str, "%u.%02u", fw_rev_major, fw_rev_minor);
} else {
sprintf(fw_ver_str, "<card no answer>");
}
/* Get switch settings */
option_switches = inb_p(pcipcwd_private.io_addr + 3);
printk(KERN_INFO PFX "Found card at port 0x%04x (Firmware: %s) %s temp option\n",
(int) pcipcwd_private.io_addr, fw_ver_str,
(pcipcwd_private.supports_temp ? "with" : "without"));
printk(KERN_INFO PFX "Option switches (0x%02x): Temperature Reset Enable=%s, Power On Delay=%s\n",
option_switches,
((option_switches & 0x10) ? "ON" : "OFF"),
((option_switches & 0x08) ? "ON" : "OFF"));
if (pcipcwd_private.boot_status & WDIOF_CARDRESET)
printk(KERN_INFO PFX "Previous reset was caused by the Watchdog card\n");
if (pcipcwd_private.boot_status & WDIOF_OVERHEAT)
printk(KERN_INFO PFX "Card sensed a CPU Overheat\n");
if (pcipcwd_private.boot_status == 0)
printk(KERN_INFO PFX "No previous trip detected - Cold boot or reset\n");
/* Show info about the card itself */
pcipcwd_show_card_info();
/* Check that the heartbeat value is within it's range ; if not reset to the default */
if (pcipcwd_set_heartbeat(heartbeat)) {
@ -656,7 +761,7 @@ static struct pci_driver pcipcwd_driver = {
static int __init pcipcwd_init_module(void)
{
spin_lock_init (&pcipcwd_private.io_lock);
spin_lock_init(&pcipcwd_private.io_lock);
return pci_register_driver(&pcipcwd_driver);
}

2
drivers/connector/connector.c
View File

@ -69,7 +69,7 @@ int cn_already_initialized = 0;
* a new message.
*
*/
int cn_netlink_send(struct cn_msg *msg, u32 __group, int gfp_mask)
int cn_netlink_send(struct cn_msg *msg, u32 __group, gfp_t gfp_mask)
{
struct cn_callback_entry *__cbq;
unsigned int size;

178
drivers/firmware/dell_rbu.c
View File

@ -50,7 +50,7 @@
MODULE_AUTHOR("Abhay Salunke <abhay_salunke@dell.com>");
MODULE_DESCRIPTION("Driver for updating BIOS image on DELL systems");
MODULE_LICENSE("GPL");
MODULE_VERSION("2.0");
MODULE_VERSION("3.0");
#define BIOS_SCAN_LIMIT 0xffffffff
#define MAX_IMAGE_LENGTH 16
@ -62,15 +62,16 @@ static struct _rbu_data {
int dma_alloc;
spinlock_t lock;
unsigned long packet_read_count;
unsigned long packet_write_count;
unsigned long num_packets;
unsigned long packetsize;
unsigned long imagesize;
int entry_created;
} rbu_data;
static char image_type[MAX_IMAGE_LENGTH + 1] = "mono";
module_param_string(image_type, image_type, sizeof (image_type), 0);
MODULE_PARM_DESC(image_type, "BIOS image type. choose- mono or packet");
MODULE_PARM_DESC(image_type,
"BIOS image type. choose- mono or packet or init");
struct packet_data {
struct list_head list;
@ -88,55 +89,13 @@ static dma_addr_t dell_rbu_dmaaddr;
static void init_packet_head(void)
{
INIT_LIST_HEAD(&packet_data_head.list);
rbu_data.packet_write_count = 0;
rbu_data.packet_read_count = 0;
rbu_data.num_packets = 0;
rbu_data.packetsize = 0;
rbu_data.imagesize = 0;
}
static int fill_last_packet(void *data, size_t length)
{
struct list_head *ptemp_list;
struct packet_data *packet = NULL;
int packet_count = 0;
pr_debug("fill_last_packet: entry \n");
if (!rbu_data.num_packets) {
pr_debug("fill_last_packet: num_packets=0\n");
return -ENOMEM;
}
packet_count = rbu_data.num_packets;
ptemp_list = (&packet_data_head.list)->prev;
packet = list_entry(ptemp_list, struct packet_data, list);
if ((rbu_data.packet_write_count + length) > rbu_data.packetsize) {
pr_debug("dell_rbu:%s: packet size data "
"overrun\n", __FUNCTION__);
return -EINVAL;
}
pr_debug("fill_last_packet : buffer = %p\n", packet->data);
memcpy((packet->data + rbu_data.packet_write_count), data, length);
if ((rbu_data.packet_write_count + length) == rbu_data.packetsize) {
/*
* this was the last data chunk in the packet
* so reinitialize the packet data counter to zero
*/
rbu_data.packet_write_count = 0;
} else
rbu_data.packet_write_count += length;
pr_debug("fill_last_packet: exit \n");
return 0;
}
static int create_packet(size_t length)
static int create_packet(void *data, size_t length)
{
struct packet_data *newpacket;
int ordernum = 0;
@ -186,9 +145,11 @@ static int create_packet(size_t length)
INIT_LIST_HEAD(&newpacket->list);
list_add_tail(&newpacket->list, &packet_data_head.list);
/*
* packets have fixed size
* packets may not have fixed size
*/
newpacket->length = rbu_data.packetsize;
newpacket->length = length;
memcpy(newpacket->data, data, length);
pr_debug("create_packet: exit \n");
@ -198,13 +159,37 @@ static int create_packet(size_t length)
static int packetize_data(void *data, size_t length)
{
int rc = 0;
if (!rbu_data.packet_write_count) {
if ((rc = create_packet(length)))
return rc;
int done = 0;
int packet_length;
u8 *temp;
u8 *end = (u8 *) data + length;
pr_debug("packetize_data: data length %d\n", length);
if (!rbu_data.packetsize) {
printk(KERN_WARNING
"dell_rbu: packetsize not specified\n");
return -EIO;
}
if ((rc = fill_last_packet(data, length)))
return rc;
temp = (u8 *) data;
/* packetize the hunk */
while (!done) {
if ((temp + rbu_data.packetsize) < end)
packet_length = rbu_data.packetsize;
else {
/* this is the last packet */
packet_length = end - temp;
done = 1;
}
if ((rc = create_packet(temp, packet_length)))
return rc;
pr_debug("%lu:%lu\n", temp, (end - temp));
temp += packet_length;
}
rbu_data.imagesize = length;
return rc;
}
@ -243,7 +228,7 @@ static int do_packet_read(char *data, struct list_head *ptemp_list,
return bytes_copied;
}
static int packet_read_list(char *data, size_t *pread_length)
static int packet_read_list(char *data, size_t * pread_length)
{
struct list_head *ptemp_list;
int temp_count = 0;
@ -303,10 +288,9 @@ static void packet_empty_list(void)
newpacket->ordernum);
kfree(newpacket);
}
rbu_data.packet_write_count = 0;
rbu_data.packet_read_count = 0;
rbu_data.num_packets = 0;
rbu_data.packetsize = 0;
rbu_data.imagesize = 0;
}
/*
@ -425,7 +409,6 @@ static ssize_t read_packet_data(char *buffer, loff_t pos, size_t count)
size_t bytes_left;
size_t data_length;
char *ptempBuf = buffer;
unsigned long imagesize;
/* check to see if we have something to return */
if (rbu_data.num_packets == 0) {
@ -434,22 +417,20 @@ static ssize_t read_packet_data(char *buffer, loff_t pos, size_t count)
goto read_rbu_data_exit;
}
imagesize = rbu_data.num_packets * rbu_data.packetsize;
if (pos > imagesize) {
if (pos > rbu_data.imagesize) {
retval = 0;
printk(KERN_WARNING "dell_rbu:read_packet_data: "
"data underrun\n");
goto read_rbu_data_exit;
}
bytes_left = imagesize - pos;
bytes_left = rbu_data.imagesize - pos;
data_length = min(bytes_left, count);
if ((retval = packet_read_list(ptempBuf, &data_length)) < 0)
goto read_rbu_data_exit;
if ((pos + count) > imagesize) {
if ((pos + count) > rbu_data.imagesize) {
rbu_data.packet_read_count = 0;
/* this was the last copy */
retval = bytes_left;
@ -499,7 +480,7 @@ static ssize_t read_rbu_mono_data(char *buffer, loff_t pos, size_t count)
}
static ssize_t read_rbu_data(struct kobject *kobj, char *buffer,
loff_t pos, size_t count)
loff_t pos, size_t count)
{
ssize_t ret_count = 0;
@ -531,13 +512,18 @@ static void callbackfn_rbu(const struct firmware *fw, void *context)
memcpy(rbu_data.image_update_buffer,
fw->data, fw->size);
} else if (!strcmp(image_type, "packet")) {
if (!rbu_data.packetsize)
rbu_data.packetsize = fw->size;
else if (rbu_data.packetsize != fw->size) {
/*
* we need to free previous packets if a
* new hunk of packets needs to be downloaded
*/
packet_empty_list();
if (packetize_data(fw->data, fw->size))
/* Incase something goes wrong when we are
* in middle of packetizing the data, we
* need to free up whatever packets might
* have been created before we quit.
*/
packet_empty_list();
rbu_data.packetsize = fw->size;
}
packetize_data(fw->data, fw->size);
} else
pr_debug("invalid image type specified.\n");
spin_unlock(&rbu_data.lock);
@ -553,7 +539,7 @@ static void callbackfn_rbu(const struct firmware *fw, void *context)
}
static ssize_t read_rbu_image_type(struct kobject *kobj, char *buffer,
loff_t pos, size_t count)
loff_t pos, size_t count)
{
int size = 0;
if (!pos)
@ -562,7 +548,7 @@ static ssize_t read_rbu_image_type(struct kobject *kobj, char *buffer,
}
static ssize_t write_rbu_image_type(struct kobject *kobj, char *buffer,
loff_t pos, size_t count)
loff_t pos, size_t count)
{
int rc = count;
int req_firm_rc = 0;
@ -621,25 +607,49 @@ static ssize_t write_rbu_image_type(struct kobject *kobj, char *buffer,
return rc;
}
static ssize_t read_rbu_packet_size(struct kobject *kobj, char *buffer,
loff_t pos, size_t count)
{
int size = 0;
if (!pos) {
spin_lock(&rbu_data.lock);
size = sprintf(buffer, "%lu\n", rbu_data.packetsize);
spin_unlock(&rbu_data.lock);
}
return size;
}
static ssize_t write_rbu_packet_size(struct kobject *kobj, char *buffer,
loff_t pos, size_t count)
{
unsigned long temp;
spin_lock(&rbu_data.lock);
packet_empty_list();
sscanf(buffer, "%lu", &temp);
if (temp < 0xffffffff)
rbu_data.packetsize = temp;
spin_unlock(&rbu_data.lock);
return count;
}
static struct bin_attribute rbu_data_attr = {
.attr = {
.name = "data",
.owner = THIS_MODULE,
.mode = 0444,
},
.attr = {.name = "data",.owner = THIS_MODULE,.mode = 0444},
.read = read_rbu_data,
};
static struct bin_attribute rbu_image_type_attr = {
.attr = {
.name = "image_type",
.owner = THIS_MODULE,
.mode = 0644,
},
.attr = {.name = "image_type",.owner = THIS_MODULE,.mode = 0644},
.read = read_rbu_image_type,
.write = write_rbu_image_type,
};
static struct bin_attribute rbu_packet_size_attr = {
.attr = {.name = "packet_size",.owner = THIS_MODULE,.mode = 0644},
.read = read_rbu_packet_size,
.write = write_rbu_packet_size,
};
static int __init dcdrbu_init(void)
{
int rc = 0;
@ -657,6 +667,8 @@ static int __init dcdrbu_init(void)
sysfs_create_bin_file(&rbu_device->dev.kobj, &rbu_data_attr);
sysfs_create_bin_file(&rbu_device->dev.kobj, &rbu_image_type_attr);
sysfs_create_bin_file(&rbu_device->dev.kobj,
&rbu_packet_size_attr);
rc = request_firmware_nowait(THIS_MODULE, FW_ACTION_NOHOTPLUG,
"dell_rbu", &rbu_device->dev, &context, callbackfn_rbu);

8
drivers/ide/ide-io.c
View File

@ -1101,6 +1101,7 @@ static void ide_do_request (ide_hwgroup_t *hwgroup, int masked_irq)
ide_hwif_t *hwif;
struct request *rq;
ide_startstop_t startstop;
int loops = 0;
/* for atari only: POSSIBLY BROKEN HERE(?) */
ide_get_lock(ide_intr, hwgroup);
@ -1153,6 +1154,7 @@ static void ide_do_request (ide_hwgroup_t *hwgroup, int masked_irq)
/* no more work for this hwgroup (for now) */
return;
}
again:
hwif = HWIF(drive);
if (hwgroup->hwif->sharing_irq &&
hwif != hwgroup->hwif &&
@ -1192,8 +1194,14 @@ static void ide_do_request (ide_hwgroup_t *hwgroup, int masked_irq)
* though. I hope that doesn't happen too much, hopefully not
* unless the subdriver triggers such a thing in its own PM
* state machine.
*
* We count how many times we loop here to make sure we service
* all drives in the hwgroup without looping for ever
*/
if (drive->blocked && !blk_pm_request(rq) && !(rq->flags & REQ_PREEMPT)) {
drive = drive->next ? drive->next : hwgroup->drive;
if (loops++ < 4 && !blk_queue_plugged(drive->queue))
goto again;
/* We clear busy, there should be no pending ATA command at this point. */
hwgroup->busy = 0;
break;

2
drivers/ieee1394/raw1394.c
View File

@ -98,7 +98,7 @@ static struct hpsb_address_ops arm_ops = {
static void queue_complete_cb(struct pending_request *req);
static struct pending_request *__alloc_pending_request(unsigned int __nocast flags)
static struct pending_request *__alloc_pending_request(gfp_t flags)
{
struct pending_request *req;

2
drivers/infiniband/core/mad.c
View File

@ -783,7 +783,7 @@ struct ib_mad_send_buf * ib_create_send_mad(struct ib_mad_agent *mad_agent,
u32 remote_qpn, u16 pkey_index,
struct ib_ah *ah, int rmpp_active,
int hdr_len, int data_len,
unsigned int __nocast gfp_mask)
gfp_t gfp_mask)
{
struct ib_mad_agent_private *mad_agent_priv;
struct ib_mad_send_buf *send_buf;

6
drivers/infiniband/core/sa_query.c
View File

@ -574,7 +574,7 @@ static void ib_sa_path_rec_release(struct ib_sa_query *sa_query)
int ib_sa_path_rec_get(struct ib_device *device, u8 port_num,
struct ib_sa_path_rec *rec,
ib_sa_comp_mask comp_mask,
int timeout_ms, unsigned int __nocast gfp_mask,
int timeout_ms, gfp_t gfp_mask,
void (*callback)(int status,
struct ib_sa_path_rec *resp,
void *context),
@ -676,7 +676,7 @@ static void ib_sa_service_rec_release(struct ib_sa_query *sa_query)
int ib_sa_service_rec_query(struct ib_device *device, u8 port_num, u8 method,
struct ib_sa_service_rec *rec,
ib_sa_comp_mask comp_mask,
int timeout_ms, unsigned int __nocast gfp_mask,
int timeout_ms, gfp_t gfp_mask,
void (*callback)(int status,
struct ib_sa_service_rec *resp,
void *context),
@ -759,7 +759,7 @@ int ib_sa_mcmember_rec_query(struct ib_device *device, u8 port_num,
u8 method,
struct ib_sa_mcmember_rec *rec,
ib_sa_comp_mask comp_mask,
int timeout_ms, unsigned int __nocast gfp_mask,
int timeout_ms, gfp_t gfp_mask,
void (*callback)(int status,
struct ib_sa_mcmember_rec *resp,
void *context),

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