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Merge branch 'linus' into queue 

Merge reason: development work has dependency on kvm patches merged
upstream.

Conflicts:
	Documentation/feature-removal-schedule.txt

Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
This commit is contained in:
Marcelo Tosatti 2012-04-19 17:06:26 -03:00
parent f71fa31f9f 19853301ef
commit eac0556750
431 changed files with 4006 additions and 3036 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

14
Documentation/ABI/stable/sysfs-driver-usb-usbtmc
View File

@ -1,5 +1,5 @@
What: /sys/bus/usb/drivers/usbtmc/devices/*/interface_capabilities
What: /sys/bus/usb/drivers/usbtmc/devices/*/device_capabilities
What: /sys/bus/usb/drivers/usbtmc/*/interface_capabilities
What: /sys/bus/usb/drivers/usbtmc/*/device_capabilities
Date: August 2008
Contact: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Description:
@ -12,8 +12,8 @@ Description:
The files are read only.
What: /sys/bus/usb/drivers/usbtmc/devices/*/usb488_interface_capabilities
What: /sys/bus/usb/drivers/usbtmc/devices/*/usb488_device_capabilities
What: /sys/bus/usb/drivers/usbtmc/*/usb488_interface_capabilities
What: /sys/bus/usb/drivers/usbtmc/*/usb488_device_capabilities
Date: August 2008
Contact: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Description:
@ -27,7 +27,7 @@ Description:
The files are read only.
What: /sys/bus/usb/drivers/usbtmc/devices/*/TermChar
What: /sys/bus/usb/drivers/usbtmc/*/TermChar
Date: August 2008
Contact: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Description:
@ -40,7 +40,7 @@ Description:
sent to the device or not.
What: /sys/bus/usb/drivers/usbtmc/devices/*/TermCharEnabled
What: /sys/bus/usb/drivers/usbtmc/*/TermCharEnabled
Date: August 2008
Contact: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Description:
@ -51,7 +51,7 @@ Description:
published by the USB-IF.
What: /sys/bus/usb/drivers/usbtmc/devices/*/auto_abort
What: /sys/bus/usb/drivers/usbtmc/*/auto_abort
Date: August 2008
Contact: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Description:

18
Documentation/ABI/testing/sysfs-block-rssd Normal file
View File

@ -0,0 +1,18 @@
What: /sys/block/rssd*/registers
Date: March 2012
KernelVersion: 3.3
Contact: Asai Thambi S P <asamymuthupa@micron.com>
Description: This is a read-only file. Dumps below driver information and
hardware registers.
- S ACTive
- Command Issue
- Allocated
- Completed
- PORT IRQ STAT
- HOST IRQ STAT
What: /sys/block/rssd*/status
Date: April 2012
KernelVersion: 3.4
Contact: Asai Thambi S P <asamymuthupa@micron.com>
Description: This is a read-only file. Indicates the status of the device.

8
Documentation/ABI/testing/sysfs-cfq-target-latency Normal file
View File

@ -0,0 +1,8 @@
What: /sys/block/<device>/iosched/target_latency
Date: March 2012
contact: Tao Ma <boyu.mt@taobao.com>
Description:
The /sys/block/<device>/iosched/target_latency only exists
when the user sets cfq to /sys/block/<device>/scheduler.
It contains an estimated latency time for the cfq. cfq will
use it to calculate the time slice used for every task.

5
Documentation/cgroups/memory.txt
View File

@ -34,8 +34,7 @@ Current Status: linux-2.6.34-mmotm(development version of 2010/April)
Features:
- accounting anonymous pages, file caches, swap caches usage and limiting them.
- private LRU and reclaim routine. (system's global LRU and private LRU
work independently from each other)
- pages are linked to per-memcg LRU exclusively, and there is no global LRU.
- optionally, memory+swap usage can be accounted and limited.
- hierarchical accounting
- soft limit
@ -154,7 +153,7 @@ updated. page_cgroup has its own LRU on cgroup.
2.2.1 Accounting details
All mapped anon pages (RSS) and cache pages (Page Cache) are accounted.
Some pages which are never reclaimable and will not be on the global LRU
Some pages which are never reclaimable and will not be on the LRU
are not accounted. We just account pages under usual VM management.
RSS pages are accounted at page_fault unless they've already been accounted

9
Documentation/feature-removal-schedule.txt
View File

@ -534,7 +534,16 @@ Who: Kees Cook <keescook@chromium.org>
----------------------------
What: setitimer accepts user NULL pointer (value)
When: 3.6
Why: setitimer is not returning -EFAULT if user pointer is NULL. This
violates the spec.
Who: Sasikantha Babu <sasikanth.v19@gmail.com>
----------------------------
What: KVM debugfs statistics
When: 2013
Why: KVM tracepoints provide mostly equivalent information in a much more
flexible fashion.

2
Documentation/filesystems/vfs.txt
View File

@ -114,7 +114,7 @@ members are defined:
struct file_system_type {
const char *name;
int fs_flags;
struct dentry (*mount) (struct file_system_type *, int,
struct dentry *(*mount) (struct file_system_type *, int,
const char *, void *);
void (*kill_sb) (struct super_block *);
struct module *owner;

4
Documentation/sound/alsa/HD-Audio-Models.txt
View File

@ -43,7 +43,9 @@ ALC680
ALC882/883/885/888/889
======================
N/A
acer-aspire-4930g Acer Aspire 4930G/5930G/6530G/6930G/7730G
acer-aspire-8930g Acer Aspire 8330G/6935G
acer-aspire Acer Aspire others
ALC861/660
==========

22
Documentation/usb/URB.txt
View File

@ -168,6 +168,28 @@ that if the completion handler or anyone else tries to resubmit it
they will get a -EPERM error. Thus you can be sure that when
usb_kill_urb() returns, the URB is totally idle.
There is a lifetime issue to consider. An URB may complete at any
time, and the completion handler may free the URB. If this happens
while usb_unlink_urb or usb_kill_urb is running, it will cause a
memory-access violation. The driver is responsible for avoiding this,
which often means some sort of lock will be needed to prevent the URB
from being deallocated while it is still in use.
On the other hand, since usb_unlink_urb may end up calling the
completion handler, the handler must not take any lock that is held
when usb_unlink_urb is invoked. The general solution to this problem
is to increment the URB's reference count while holding the lock, then
drop the lock and call usb_unlink_urb or usb_kill_urb, and then
decrement the URB's reference count. You increment the reference
count by calling
struct urb *usb_get_urb(struct urb *urb)
(ignore the return value; it is the same as the argument) and
decrement the reference count by calling usb_free_urb. Of course,
none of this is necessary if there's no danger of the URB being freed
by the completion handler.
1.7. What about the completion handler?

6
Documentation/usb/usbmon.txt
View File

@ -183,10 +183,10 @@ An input control transfer to get a port status.
d5ea89a0 3575914555 S Ci:1:001:0 s a3 00 0000 0003 0004 4 <
d5ea89a0 3575914560 C Ci:1:001:0 0 4 = 01050000
An output bulk transfer to send a SCSI command 0x5E in a 31-byte Bulk wrapper
to a storage device at address 5:
An output bulk transfer to send a SCSI command 0x28 (READ_10) in a 31-byte
Bulk wrapper to a storage device at address 5:
dd65f0e8 4128379752 S Bo:1:005:2 -115 31 = 55534243 5e000000 00000000 00000600 00000000 00000000 00000000 000000
dd65f0e8 4128379752 S Bo:1:005:2 -115 31 = 55534243 ad000000 00800000 80010a28 20000000 20000040 00000000 000000
dd65f0e8 4128379808 C Bo:1:005:2 0 31 >
* Raw binary format and API

25
MAINTAINERS
View File

@ -1521,8 +1521,8 @@ M: Gustavo Padovan <gustavo@padovan.org>
M: Johan Hedberg <johan.hedberg@gmail.com>
L: linux-bluetooth@vger.kernel.org
W: http://www.bluez.org/
T: git git://git.kernel.org/pub/scm/linux/kernel/git/padovan/bluetooth.git
T: git git://git.kernel.org/pub/scm/linux/kernel/git/jh/bluetooth.git
T: git git://git.kernel.org/pub/scm/linux/kernel/git/bluetooth/bluetooth.git
T: git git://git.kernel.org/pub/scm/linux/kernel/git/bluetooth/bluetooth-next.git
S: Maintained
F: drivers/bluetooth/
@ -1532,8 +1532,8 @@ M: Gustavo Padovan <gustavo@padovan.org>
M: Johan Hedberg <johan.hedberg@gmail.com>
L: linux-bluetooth@vger.kernel.org
W: http://www.bluez.org/
T: git git://git.kernel.org/pub/scm/linux/kernel/git/padovan/bluetooth.git
T: git git://git.kernel.org/pub/scm/linux/kernel/git/jh/bluetooth.git
T: git git://git.kernel.org/pub/scm/linux/kernel/git/bluetooth/bluetooth.git
T: git git://git.kernel.org/pub/scm/linux/kernel/git/bluetooth/bluetooth-next.git
S: Maintained
F: net/bluetooth/
F: include/net/bluetooth/
@ -2321,9 +2321,9 @@ S: Supported
F: drivers/acpi/dock.c
DOCUMENTATION
M: Randy Dunlap <rdunlap@xenotime.net>
M: Rob Landley <rob@landley.net>
L: linux-doc@vger.kernel.org
T: quilt http://xenotime.net/kernel-doc-patches/current/
T: TBD
S: Maintained
F: Documentation/
@ -4533,8 +4533,7 @@ S: Supported
F: drivers/net/ethernet/myricom/myri10ge/
NATSEMI ETHERNET DRIVER (DP8381x)
M: Tim Hockin <thockin@hockin.org>
S: Maintained
S: Orphan
F: drivers/net/ethernet/natsemi/natsemi.c
NATIVE INSTRUMENTS USB SOUND INTERFACE DRIVER
@ -4803,6 +4802,7 @@ F: arch/arm/mach-omap2/clockdomain2xxx_3xxx.c
F: arch/arm/mach-omap2/clockdomain44xx.c
OMAP AUDIO SUPPORT
M: Peter Ujfalusi <peter.ujfalusi@ti.com>
M: Jarkko Nikula <jarkko.nikula@bitmer.com>
L: alsa-devel@alsa-project.org (subscribers-only)
L: linux-omap@vger.kernel.org
@ -5117,6 +5117,11 @@ F: drivers/i2c/busses/i2c-pca-*
F: include/linux/i2c-algo-pca.h
F: include/linux/i2c-pca-platform.h
PCDP - PRIMARY CONSOLE AND DEBUG PORT
M: Khalid Aziz <khalid.aziz@hp.com>
S: Maintained
F: drivers/firmware/pcdp.*
PCI ERROR RECOVERY
M: Linas Vepstas <linasvepstas@gmail.com>
L: linux-pci@vger.kernel.org
@ -6466,6 +6471,7 @@ S: Odd Fixes
F: drivers/staging/olpc_dcon/
STAGING - OZMO DEVICES USB OVER WIFI DRIVER
M: Rupesh Gujare <rgujare@ozmodevices.com>
M: Chris Kelly <ckelly@ozmodevices.com>
S: Maintained
F: drivers/staging/ozwpan/
@ -7461,8 +7467,7 @@ F: include/linux/wm97xx.h
WOLFSON MICROELECTRONICS DRIVERS
M: Mark Brown <broonie@opensource.wolfsonmicro.com>
M: Ian Lartey <ian@opensource.wolfsonmicro.com>
M: Dimitris Papastamos <dp@opensource.wolfsonmicro.com>
L: patches@opensource.wolfsonmicro.com
T: git git://opensource.wolfsonmicro.com/linux-2.6-asoc
T: git git://opensource.wolfsonmicro.com/linux-2.6-audioplus
W: http://opensource.wolfsonmicro.com/content/linux-drivers-wolfson-devices

2
Makefile
View File

@ -1,7 +1,7 @@
VERSION = 3
PATCHLEVEL = 4
SUBLEVEL = 0
EXTRAVERSION = -rc2
EXTRAVERSION = -rc3
NAME = Saber-toothed Squirrel
# *DOCUMENTATION*

68
arch/alpha/include/asm/atomic.h
View File

@ -3,6 +3,7 @@
#include <linux/types.h>
#include <asm/barrier.h>
#include <asm/cmpxchg.h>
/*
* Atomic operations that C can't guarantee us. Useful for
@ -168,73 +169,6 @@ static __inline__ long atomic64_sub_return(long i, atomic64_t * v)
return result;
}
/*
* Atomic exchange routines.
*/
#define __ASM__MB
#define ____xchg(type, args...) __xchg ## type ## _local(args)
#define ____cmpxchg(type, args...) __cmpxchg ## type ## _local(args)
#include <asm/xchg.h>
#define xchg_local(ptr,x) \
({ \
__typeof__(*(ptr)) _x_ = (x); \
(__typeof__(*(ptr))) __xchg_local((ptr), (unsigned long)_x_, \
sizeof(*(ptr))); \
})
#define cmpxchg_local(ptr, o, n) \
({ \
__typeof__(*(ptr)) _o_ = (o); \
__typeof__(*(ptr)) _n_ = (n); \
(__typeof__(*(ptr))) __cmpxchg_local((ptr), (unsigned long)_o_, \
(unsigned long)_n_, \
sizeof(*(ptr))); \
})
#define cmpxchg64_local(ptr, o, n) \
({ \
BUILD_BUG_ON(sizeof(*(ptr)) != 8); \
cmpxchg_local((ptr), (o), (n)); \
})
#ifdef CONFIG_SMP
#undef __ASM__MB
#define __ASM__MB "\tmb\n"
#endif
#undef ____xchg
#undef ____cmpxchg
#define ____xchg(type, args...) __xchg ##type(args)
#define ____cmpxchg(type, args...) __cmpxchg ##type(args)
#include <asm/xchg.h>
#define xchg(ptr,x) \
({ \
__typeof__(*(ptr)) _x_ = (x); \
(__typeof__(*(ptr))) __xchg((ptr), (unsigned long)_x_, \
sizeof(*(ptr))); \
})
#define cmpxchg(ptr, o, n) \
({ \
__typeof__(*(ptr)) _o_ = (o); \
__typeof__(*(ptr)) _n_ = (n); \
(__typeof__(*(ptr))) __cmpxchg((ptr), (unsigned long)_o_, \
(unsigned long)_n_, sizeof(*(ptr)));\
})
#define cmpxchg64(ptr, o, n) \
({ \
BUILD_BUG_ON(sizeof(*(ptr)) != 8); \
cmpxchg((ptr), (o), (n)); \
})
#undef __ASM__MB
#undef ____cmpxchg
#define __HAVE_ARCH_CMPXCHG 1
#define atomic64_cmpxchg(v, old, new) (cmpxchg(&((v)->counter), old, new))
#define atomic64_xchg(v, new) (xchg(&((v)->counter), new))

71
arch/alpha/include/asm/cmpxchg.h Normal file
View File

@ -0,0 +1,71 @@
#ifndef _ALPHA_CMPXCHG_H
#define _ALPHA_CMPXCHG_H
/*
* Atomic exchange routines.
*/
#define __ASM__MB
#define ____xchg(type, args...) __xchg ## type ## _local(args)
#define ____cmpxchg(type, args...) __cmpxchg ## type ## _local(args)
#include <asm/xchg.h>
#define xchg_local(ptr, x) \
({ \
__typeof__(*(ptr)) _x_ = (x); \
(__typeof__(*(ptr))) __xchg_local((ptr), (unsigned long)_x_, \
sizeof(*(ptr))); \
})
#define cmpxchg_local(ptr, o, n) \
({ \
__typeof__(*(ptr)) _o_ = (o); \
__typeof__(*(ptr)) _n_ = (n); \
(__typeof__(*(ptr))) __cmpxchg_local((ptr), (unsigned long)_o_, \
(unsigned long)_n_, \
sizeof(*(ptr))); \
})
#define cmpxchg64_local(ptr, o, n) \
({ \
BUILD_BUG_ON(sizeof(*(ptr)) != 8); \
cmpxchg_local((ptr), (o), (n)); \
})
#ifdef CONFIG_SMP
#undef __ASM__MB
#define __ASM__MB "\tmb\n"
#endif
#undef ____xchg
#undef ____cmpxchg
#define ____xchg(type, args...) __xchg ##type(args)
#define ____cmpxchg(type, args...) __cmpxchg ##type(args)
#include <asm/xchg.h>
#define xchg(ptr, x) \
({ \
__typeof__(*(ptr)) _x_ = (x); \
(__typeof__(*(ptr))) __xchg((ptr), (unsigned long)_x_, \
sizeof(*(ptr))); \
})
#define cmpxchg(ptr, o, n) \
({ \
__typeof__(*(ptr)) _o_ = (o); \
__typeof__(*(ptr)) _n_ = (n); \
(__typeof__(*(ptr))) __cmpxchg((ptr), (unsigned long)_o_, \
(unsigned long)_n_, sizeof(*(ptr)));\
})
#define cmpxchg64(ptr, o, n) \
({ \
BUILD_BUG_ON(sizeof(*(ptr)) != 8); \
cmpxchg((ptr), (o), (n)); \
})
#undef __ASM__MB
#undef ____cmpxchg
#define __HAVE_ARCH_CMPXCHG 1
#endif /* _ALPHA_CMPXCHG_H */

4
arch/alpha/include/asm/xchg.h
View File

@ -1,10 +1,10 @@
#ifndef _ALPHA_ATOMIC_H
#ifndef _ALPHA_CMPXCHG_H
#error Do not include xchg.h directly!
#else
/*
* xchg/xchg_local and cmpxchg/cmpxchg_local share the same code
* except that local version do not have the expensive memory barrier.
* So this file is included twice from asm/system.h.
* So this file is included twice from asm/cmpxchg.h.
*/
/*

2
arch/arm/boot/compressed/atags_to_fdt.c
View File

@ -77,6 +77,8 @@ int atags_to_fdt(void *atag_list, void *fdt, int total_space)
} else if (atag->hdr.tag == ATAG_MEM) {
if (memcount >= sizeof(mem_reg_property)/4)
continue;
if (!atag->u.mem.size)
continue;
mem_reg_property[memcount++] = cpu_to_fdt32(atag->u.mem.start);
mem_reg_property[memcount++] = cpu_to_fdt32(atag->u.mem.size);
} else if (atag->hdr.tag == ATAG_INITRD2) {

2
arch/arm/boot/compressed/head.S
View File

@ -273,7 +273,7 @@ restart: adr r0, LC0
add r0, r0, #0x100
mov r1, r6
sub r2, sp, r6
blne atags_to_fdt
bleq atags_to_fdt
ldmfd sp!, {r0-r3, ip, lr}
sub sp, sp, #0x10000

1
arch/arm/boot/dts/at91sam9g20.dtsi
View File

@ -55,7 +55,6 @@
#interrupt-cells = <2>;
compatible = "atmel,at91rm9200-aic";
interrupt-controller;
interrupt-parent;
reg = <0xfffff000 0x200>;
};

1
arch/arm/boot/dts/at91sam9g45.dtsi
View File

@ -56,7 +56,6 @@
#interrupt-cells = <2>;
compatible = "atmel,at91rm9200-aic";
interrupt-controller;
interrupt-parent;
reg = <0xfffff000 0x200>;
};

1
arch/arm/boot/dts/at91sam9x5.dtsi
View File

@ -54,7 +54,6 @@
#interrupt-cells = <2>;
compatible = "atmel,at91rm9200-aic";
interrupt-controller;
interrupt-parent;
reg = <0xfffff000 0x200>;
};

1
arch/arm/boot/dts/db8500.dtsi
View File

@ -24,7 +24,6 @@
#interrupt-cells = <3>;
#address-cells = <1>;
interrupt-controller;
interrupt-parent;
reg = <0xa0411000 0x1000>,
<0xa0410100 0x100>;
};

1
arch/arm/boot/dts/highbank.dts
View File

@ -89,7 +89,6 @@
#size-cells = <0>;
#address-cells = <1>;
interrupt-controller;
interrupt-parent;
reg = <0xfff11000 0x1000>,
<0xfff10100 0x100>;
};

9
arch/arm/common/vic.c
View File

@ -427,19 +427,18 @@ int __init vic_of_init(struct device_node *node, struct device_node *parent)
/*
* Handle each interrupt in a single VIC. Returns non-zero if we've
* handled at least one interrupt. This does a single read of the
* status register and handles all interrupts in order from LSB first.
* handled at least one interrupt. This reads the status register
* before handling each interrupt, which is necessary given that
* handle_IRQ may briefly re-enable interrupts for soft IRQ handling.
*/
static int handle_one_vic(struct vic_device *vic, struct pt_regs *regs)
{
u32 stat, irq;
int handled = 0;
stat = readl_relaxed(vic->base + VIC_IRQ_STATUS);
while (stat) {
while ((stat = readl_relaxed(vic->base + VIC_IRQ_STATUS))) {
irq = ffs(stat) - 1;
handle_IRQ(irq_find_mapping(vic->domain, irq), regs);
stat &= ~(1 << irq);
handled = 1;
}

2
arch/arm/include/asm/jump_label.h
View File

@ -14,7 +14,7 @@
#define JUMP_LABEL_NOP "nop"
#endif
static __always_inline bool arch_static_branch(struct jump_label_key *key)
static __always_inline bool arch_static_branch(struct static_key *key)
{
asm goto("1:\n\t"
JUMP_LABEL_NOP "\n\t"

16
arch/arm/kernel/setup.c
View File

@ -523,7 +523,21 @@ int __init arm_add_memory(phys_addr_t start, unsigned long size)
*/
size -= start & ~PAGE_MASK;
bank->start = PAGE_ALIGN(start);
bank->size = size & PAGE_MASK;
#ifndef CONFIG_LPAE
if (bank->start + size < bank->start) {
printk(KERN_CRIT "Truncating memory at 0x%08llx to fit in "
"32-bit physical address space\n", (long long)start);
/*
* To ensure bank->start + bank->size is representable in
* 32 bits, we use ULONG_MAX as the upper limit rather than 4GB.
* This means we lose a page after masking.
*/
size = ULONG_MAX - bank->start;
}
#endif
bank->size = size & PAGE_MASK;
/*
* Check whether this memory region has non-zero size or

6
arch/arm/kernel/smp_twd.c
View File

@ -118,10 +118,14 @@ static int twd_cpufreq_transition(struct notifier_block *nb,
* The twd clock events must be reprogrammed to account for the new
* frequency. The timer is local to a cpu, so cross-call to the
* changing cpu.
*
* Only wait for it to finish, if the cpu is active to avoid
* deadlock when cpu1 is spinning on while(!cpu_active(cpu1)) during
* booting of that cpu.
*/
if (state == CPUFREQ_POSTCHANGE || state == CPUFREQ_RESUMECHANGE)
smp_call_function_single(freqs->cpu, twd_update_frequency,
NULL, 1);
NULL, cpu_active(freqs->cpu));
return NOTIFY_OK;
}

2
arch/arm/mach-exynos/Kconfig
View File

@ -368,6 +368,7 @@ comment "Flattened Device Tree based board for EXYNOS SoCs"
config MACH_EXYNOS4_DT
bool "Samsung Exynos4 Machine using device tree"
depends on ARCH_EXYNOS4
select CPU_EXYNOS4210
select USE_OF
select ARM_AMBA
@ -380,6 +381,7 @@ config MACH_EXYNOS4_DT
config MACH_EXYNOS5_DT
bool "SAMSUNG EXYNOS5 Machine using device tree"
depends on ARCH_EXYNOS5
select SOC_EXYNOS5250
select USE_OF
select ARM_AMBA

2
arch/arm/mach-exynos/include/mach/irqs.h
View File

@ -212,6 +212,8 @@
#define IRQ_MFC EXYNOS4_IRQ_MFC
#define IRQ_SDO EXYNOS4_IRQ_SDO
#define IRQ_I2S0 EXYNOS4_IRQ_I2S0
#define IRQ_ADC EXYNOS4_IRQ_ADC0
#define IRQ_TC EXYNOS4_IRQ_PEN0

4
arch/arm/mach-exynos/include/mach/map.h
View File

@ -89,6 +89,10 @@
#define EXYNOS4_PA_MDMA1 0x12840000
#define EXYNOS4_PA_PDMA0 0x12680000
#define EXYNOS4_PA_PDMA1 0x12690000
#define EXYNOS5_PA_MDMA0 0x10800000
#define EXYNOS5_PA_MDMA1 0x11C10000
#define EXYNOS5_PA_PDMA0 0x121A0000
#define EXYNOS5_PA_PDMA1 0x121B0000
#define EXYNOS4_PA_SYSMMU_MDMA 0x10A40000
#define EXYNOS4_PA_SYSMMU_SSS 0x10A50000

6
arch/arm/mach-exynos/include/mach/regs-clock.h
View File

@ -255,9 +255,15 @@
/* For EXYNOS5250 */
#define EXYNOS5_APLL_LOCK EXYNOS_CLKREG(0x00000)
#define EXYNOS5_APLL_CON0 EXYNOS_CLKREG(0x00100)
#define EXYNOS5_CLKSRC_CPU EXYNOS_CLKREG(0x00200)
#define EXYNOS5_CLKMUX_STATCPU EXYNOS_CLKREG(0x00400)
#define EXYNOS5_CLKDIV_CPU0 EXYNOS_CLKREG(0x00500)
#define EXYNOS5_CLKDIV_CPU1 EXYNOS_CLKREG(0x00504)
#define EXYNOS5_CLKDIV_STATCPU0 EXYNOS_CLKREG(0x00600)
#define EXYNOS5_CLKDIV_STATCPU1 EXYNOS_CLKREG(0x00604)
#define EXYNOS5_MPLL_CON0 EXYNOS_CLKREG(0x04100)
#define EXYNOS5_CLKSRC_CORE1 EXYNOS_CLKREG(0x04204)

2
arch/arm/mach-exynos/mach-exynos5-dt.c
View File

@ -45,7 +45,7 @@ static const struct of_dev_auxdata exynos5250_auxdata_lookup[] __initconst = {
"exynos4210-uart.3", NULL),
OF_DEV_AUXDATA("arm,pl330", EXYNOS5_PA_PDMA0, "dma-pl330.0", NULL),
OF_DEV_AUXDATA("arm,pl330", EXYNOS5_PA_PDMA1, "dma-pl330.1", NULL),
OF_DEV_AUXDATA("arm,pl330", EXYNOS5_PA_PDMA1, "dma-pl330.2", NULL),
OF_DEV_AUXDATA("arm,pl330", EXYNOS5_PA_MDMA1, "dma-pl330.2", NULL),
{},
};

46
arch/arm/mach-exynos/mach-nuri.c
View File

@ -307,49 +307,7 @@ static struct i2c_board_info i2c1_devs[] __initdata = {
};
/* TSP */
static u8 mxt_init_vals[] = {
/* MXT_GEN_COMMAND(6) */
0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
/* MXT_GEN_POWER(7) */
0x20, 0xff, 0x32,
/* MXT_GEN_ACQUIRE(8) */
0x0a, 0x00, 0x05, 0x00, 0x00, 0x00, 0x09, 0x23,
/* MXT_TOUCH_MULTI(9) */
0x00, 0x00, 0x00, 0x13, 0x0b, 0x00, 0x00, 0x00, 0x02, 0x00,
0x00, 0x01, 0x01, 0x0e, 0x0a, 0x0a, 0x0a, 0x0a, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00,
/* MXT_TOUCH_KEYARRAY(15) */
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0x00,
0x00,
/* MXT_SPT_GPIOPWM(19) */
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
/* MXT_PROCI_GRIPFACE(20) */
0x07, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x50, 0x28, 0x04,
0x0f, 0x0a,
/* MXT_PROCG_NOISE(22) */
0x05, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x03, 0x23, 0x00,
0x00, 0x05, 0x0f, 0x19, 0x23, 0x2d, 0x03,
/* MXT_TOUCH_PROXIMITY(23) */
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00,
/* MXT_PROCI_ONETOUCH(24) */
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
/* MXT_SPT_SELFTEST(25) */
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00,
/* MXT_PROCI_TWOTOUCH(27) */
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
/* MXT_SPT_CTECONFIG(28) */
0x00, 0x00, 0x02, 0x08, 0x10, 0x00,
};
static struct mxt_platform_data mxt_platform_data = {
.config = mxt_init_vals,
.config_length = ARRAY_SIZE(mxt_init_vals),
.x_line = 18,
.y_line = 11,
.x_size = 1024,
@ -571,7 +529,7 @@ static struct regulator_init_data __initdata max8997_ldo7_data = {
static struct regulator_init_data __initdata max8997_ldo8_data = {
.constraints = {
.name = "VUSB/VDAC_3.3V_C210",
.name = "VUSB+VDAC_3.3V_C210",
.min_uV = 3300000,
.max_uV = 3300000,
.valid_ops_mask = REGULATOR_CHANGE_STATUS,
@ -1347,6 +1305,7 @@ static struct platform_device *nuri_devices[] __initdata = {
static void __init nuri_map_io(void)
{
clk_xusbxti.rate = 24000000;
exynos_init_io(NULL, 0);
s3c24xx_init_clocks(24000000);
s3c24xx_init_uarts(nuri_uartcfgs, ARRAY_SIZE(nuri_uartcfgs));
@ -1379,7 +1338,6 @@ static void __init nuri_machine_init(void)
nuri_camera_init();
nuri_ehci_init();
clk_xusbxti.rate = 24000000;
/* Last */
platform_add_devices(nuri_devices, ARRAY_SIZE(nuri_devices));

2
arch/arm/mach-exynos/mach-universal_c210.c
View File

@ -29,6 +29,7 @@
#include <asm/mach-types.h>
#include <plat/regs-serial.h>
#include <plat/clock.h>
#include <plat/cpu.h>
#include <plat/devs.h>
#include <plat/iic.h>
@ -1057,6 +1058,7 @@ static struct platform_device *universal_devices[] __initdata = {
static void __init universal_map_io(void)
{
clk_xusbxti.rate = 24000000;
exynos_init_io(NULL, 0);
s3c24xx_init_clocks(24000000);
s3c24xx_init_uarts(universal_uartcfgs, ARRAY_SIZE(universal_uartcfgs));

3
arch/arm/mach-msm/board-halibut.c
View File

@ -86,9 +86,6 @@ static void __init halibut_init(void)
static void __init halibut_fixup(struct tag *tags, char **cmdline,
struct meminfo *mi)
{
mi->nr_banks=1;
mi->bank[0].start = PHYS_OFFSET;
mi->bank[0].size = (101*1024*1024);
}
static void __init halibut_map_io(void)

1
arch/arm/mach-msm/board-trout-panel.c
View File

@ -12,6 +12,7 @@
#include <asm/io.h>
#include <asm/mach-types.h>
#include <asm/system_info.h>
#include <mach/msm_fb.h>
#include <mach/vreg.h>

1
arch/arm/mach-msm/board-trout.c
View File

@ -19,6 +19,7 @@
#include <linux/platform_device.h>
#include <linux/clkdev.h>
#include <asm/system_info.h>
#include <asm/mach-types.h>
#include <asm/mach/arch.h>
#include <asm/mach/map.h>

2
arch/arm/mach-msm/proc_comm.c
View File

@ -121,7 +121,7 @@ int msm_proc_comm(unsigned cmd, unsigned *data1, unsigned *data2)
* and unknown state. This function should be called early to
* wait on the ARM9.
*/
void __init proc_comm_boot_wait(void)
void __devinit proc_comm_boot_wait(void)
{
void __iomem *base = MSM_SHARED_RAM_BASE;

80
arch/arm/mach-omap2/clkt2xxx_virt_prcm_set.c
View File

@ -165,83 +165,3 @@ int omap2_select_table_rate(struct clk *clk, unsigned long rate)
return 0;
}
#ifdef CONFIG_CPU_FREQ
/*
* Walk PRCM rate table and fillout cpufreq freq_table
* XXX This should be replaced by an OPP layer in the near future
*/
static struct cpufreq_frequency_table *freq_table;
void omap2_clk_init_cpufreq_table(struct cpufreq_frequency_table **table)
{
const struct prcm_config *prcm;
int i = 0;
int tbl_sz = 0;
if (!cpu_is_omap24xx())
return;
for (prcm = rate_table; prcm->mpu_speed; prcm++) {
if (!(prcm->flags & cpu_mask))
continue;
if (prcm->xtal_speed != sclk->rate)
continue;
/* don't put bypass rates in table */
if (prcm->dpll_speed == prcm->xtal_speed)
continue;
tbl_sz++;
}
/*
* XXX Ensure that we're doing what CPUFreq expects for this error
* case and the following one
*/
if (tbl_sz == 0) {
pr_warning("%s: no matching entries in rate_table\n",
__func__);
return;
}
/* Include the CPUFREQ_TABLE_END terminator entry */
tbl_sz++;
freq_table = kzalloc(sizeof(struct cpufreq_frequency_table) * tbl_sz,
GFP_ATOMIC);
if (!freq_table) {
pr_err("%s: could not kzalloc frequency table\n", __func__);
return;
}
for (prcm = rate_table; prcm->mpu_speed; prcm++) {
if (!(prcm->flags & cpu_mask))
continue;
if (prcm->xtal_speed != sclk->rate)
continue;
/* don't put bypass rates in table */
if (prcm->dpll_speed == prcm->xtal_speed)
continue;
freq_table[i].index = i;
freq_table[i].frequency = prcm->mpu_speed / 1000;
i++;
}
freq_table[i].index = i;
freq_table[i].frequency = CPUFREQ_TABLE_END;
*table = &freq_table[0];
}
void omap2_clk_exit_cpufreq_table(struct cpufreq_frequency_table **table)
{
if (!cpu_is_omap24xx())
return;
kfree(freq_table);
}
#endif

5
arch/arm/mach-omap2/clock.c
View File

@ -536,10 +536,5 @@ struct clk_functions omap2_clk_functions = {
.clk_set_rate = omap2_clk_set_rate,
.clk_set_parent = omap2_clk_set_parent,
.clk_disable_unused = omap2_clk_disable_unused,
#ifdef CONFIG_CPU_FREQ
/* These will be removed when the OPP code is integrated */
.clk_init_cpufreq_table = omap2_clk_init_cpufreq_table,
.clk_exit_cpufreq_table = omap2_clk_exit_cpufreq_table,
#endif
};

8
arch/arm/mach-omap2/clock.h
View File

@ -146,14 +146,6 @@ extern const struct clksel_rate gpt_sys_rates[];
extern const struct clksel_rate gfx_l3_rates[];
extern const struct clksel_rate dsp_ick_rates[];
#if defined(CONFIG_ARCH_OMAP2) && defined(CONFIG_CPU_FREQ)
extern void omap2_clk_init_cpufreq_table(struct cpufreq_frequency_table **table);
extern void omap2_clk_exit_cpufreq_table(struct cpufreq_frequency_table **table);
#else
#define omap2_clk_init_cpufreq_table 0
#define omap2_clk_exit_cpufreq_table 0
#endif
extern const struct clkops clkops_omap2_iclk_dflt_wait;
extern const struct clkops clkops_omap2_iclk_dflt;
extern const struct clkops clkops_omap2_iclk_idle_only;

2
arch/arm/mach-s5pv210/dma.c
View File

@ -33,8 +33,6 @@
#include <mach/irqs.h>
#include <mach/dma.h>
static u64 dma_dmamask = DMA_BIT_MASK(32);
static u8 pdma0_peri[] = {
DMACH_UART0_RX,
DMACH_UART0_TX,

4
arch/arm/mach-s5pv210/mach-aquila.c
View File

@ -484,8 +484,8 @@ static struct wm8994_pdata wm8994_platform_data = {
.gpio_defaults[8] = 0x0100,
.gpio_defaults[9] = 0x0100,
.gpio_defaults[10] = 0x0100,
.ldo[0] = { S5PV210_MP03(6), NULL, &wm8994_ldo1_data }, /* XM0FRNB_2 */
.ldo[1] = { 0, NULL, &wm8994_ldo2_data },
.ldo[0] = { S5PV210_MP03(6), &wm8994_ldo1_data }, /* XM0FRNB_2 */
.ldo[1] = { 0, &wm8994_ldo2_data },
};
/* GPIO I2C PMIC */

4
arch/arm/mach-s5pv210/mach-goni.c
View File

@ -674,8 +674,8 @@ static struct wm8994_pdata wm8994_platform_data = {
.gpio_defaults[8] = 0x0100,
.gpio_defaults[9] = 0x0100,
.gpio_defaults[10] = 0x0100,
.ldo[0] = { S5PV210_MP03(6), NULL, &wm8994_ldo1_data }, /* XM0FRNB_2 */
.ldo[1] = { 0, NULL, &wm8994_ldo2_data },
.ldo[0] = { S5PV210_MP03(6), &wm8994_ldo1_data }, /* XM0FRNB_2 */
.ldo[1] = { 0, &wm8994_ldo2_data },
};
/* GPIO I2C PMIC */

2
arch/arm/mm/Kconfig
View File

@ -723,7 +723,7 @@ config CPU_HIGH_VECTOR
bool "Select the High exception vector"
help
Say Y here to select high exception vector(0xFFFF0000~).
The exception vector can be vary depending on the platform
The exception vector can vary depending on the platform
design in nommu mode. If your platform needs to select
high exception vector, say Y.
Otherwise or if you are unsure, say N, and the low exception

2
arch/arm/mm/fault.c
View File

@ -320,7 +320,7 @@ retry:
*/
perf_sw_event(PERF_COUNT_SW_PAGE_FAULTS, 1, regs, addr);
if (flags & FAULT_FLAG_ALLOW_RETRY) {
if (!(fault & VM_FAULT_ERROR) && flags & FAULT_FLAG_ALLOW_RETRY) {
if (fault & VM_FAULT_MAJOR) {
tsk->maj_flt++;
perf_sw_event(PERF_COUNT_SW_PAGE_FAULTS_MAJ, 1,

2
arch/arm/mm/nommu.c
View File

@ -13,6 +13,7 @@
#include <asm/sections.h>
#include <asm/page.h>
#include <asm/setup.h>
#include <asm/traps.h>
#include <asm/mach/arch.h>
#include "mm.h"
@ -39,6 +40,7 @@ void __init sanity_check_meminfo(void)
*/
void __init paging_init(struct machine_desc *mdesc)
{
early_trap_init((void *)CONFIG_VECTORS_BASE);
bootmem_init();
}

12
arch/arm/mm/proc-v7.S
View File

@ -254,6 +254,18 @@ __v7_setup:
ldr r6, =NMRR @ NMRR
mcr p15, 0, r5, c10, c2, 0 @ write PRRR
mcr p15, 0, r6, c10, c2, 1 @ write NMRR
#endif
#ifndef CONFIG_ARM_THUMBEE
mrc p15, 0, r0, c0, c1, 0 @ read ID_PFR0 for ThumbEE
and r0, r0, #(0xf << 12) @ ThumbEE enabled field
teq r0, #(1 << 12) @ check if ThumbEE is present
bne 1f
mov r5, #0
mcr p14, 6, r5, c1, c0, 0 @ Initialize TEEHBR to 0
mrc p14, 6, r0, c0, c0, 0 @ load TEECR
orr r0, r0, #1 @ set the 1st bit in order to
mcr p14, 6, r0, c0, c0, 0 @ stop userspace TEEHBR access
1:
#endif
adr r5, v7_crval
ldmia r5, {r5, r6}

26
arch/arm/plat-omap/clock.c
View File

@ -398,32 +398,6 @@ struct clk dummy_ck = {
.ops = &clkops_null,
};
#ifdef CONFIG_CPU_FREQ
void clk_init_cpufreq_table(struct cpufreq_frequency_table **table)
{
unsigned long flags;
if (!arch_clock || !arch_clock->clk_init_cpufreq_table)
return;
spin_lock_irqsave(&clockfw_lock, flags);
arch_clock->clk_init_cpufreq_table(table);
spin_unlock_irqrestore(&clockfw_lock, flags);
}
void clk_exit_cpufreq_table(struct cpufreq_frequency_table **table)
{
unsigned long flags;
if (!arch_clock || !arch_clock->clk_exit_cpufreq_table)
return;
spin_lock_irqsave(&clockfw_lock, flags);
arch_clock->clk_exit_cpufreq_table(table);
spin_unlock_irqrestore(&clockfw_lock, flags);
}
#endif
/*
*
*/

10
arch/arm/plat-omap/include/plat/clock.h
View File

@ -272,8 +272,6 @@ struct clk {
#endif
};
struct cpufreq_frequency_table;
struct clk_functions {
int (*clk_enable)(struct clk *clk);
void (*clk_disable)(struct clk *clk);
@ -283,10 +281,6 @@ struct clk_functions {
void (*clk_allow_idle)(struct clk *clk);
void (*clk_deny_idle)(struct clk *clk);
void (*clk_disable_unused)(struct clk *clk);
#ifdef CONFIG_CPU_FREQ
void (*clk_init_cpufreq_table)(struct cpufreq_frequency_table **);
void (*clk_exit_cpufreq_table)(struct cpufreq_frequency_table **);
#endif
};
extern int mpurate;
@ -301,10 +295,6 @@ extern void recalculate_root_clocks(void);
extern unsigned long followparent_recalc(struct clk *clk);
extern void clk_enable_init_clocks(void);
unsigned long omap_fixed_divisor_recalc(struct clk *clk);
#ifdef CONFIG_CPU_FREQ
extern void clk_init_cpufreq_table(struct cpufreq_frequency_table **table);
extern void clk_exit_cpufreq_table(struct cpufreq_frequency_table **table);
#endif
extern struct clk *omap_clk_get_by_name(const char *name);
extern int omap_clk_enable_autoidle_all(void);
extern int omap_clk_disable_autoidle_all(void);

1
arch/arm/plat-samsung/Kconfig
View File

@ -302,6 +302,7 @@ comment "Power management"
config SAMSUNG_PM_DEBUG
bool "S3C2410 PM Suspend debug"
depends on PM
select DEBUG_LL
help
Say Y here if you want verbose debugging from the PM Suspend and
Resume code. See <file:Documentation/arm/Samsung-S3C24XX/Suspend.txt>

4
arch/c6x/include/asm/irq.h
View File

@ -42,10 +42,6 @@
/* This number is used when no interrupt has been assigned */
#define NO_IRQ 0
struct irq_data;
extern irq_hw_number_t irqd_to_hwirq(struct irq_data *d);
extern irq_hw_number_t virq_to_hw(unsigned int virq);
extern void __init init_pic_c64xplus(void);
extern void init_IRQ(void);

13
arch/c6x/kernel/irq.c
View File

@ -130,16 +130,3 @@ int arch_show_interrupts(struct seq_file *p, int prec)
seq_printf(p, "%*s: %10lu\n", prec, "Err", irq_err_count);
return 0;
}
irq_hw_number_t irqd_to_hwirq(struct irq_data *d)
{
return d->hwirq;
}
EXPORT_SYMBOL_GPL(irqd_to_hwirq);
irq_hw_number_t virq_to_hw(unsigned int virq)
{
struct irq_data *irq_data = irq_get_irq_data(virq);
return WARN_ON(!irq_data) ? 0 : irq_data->hwirq;
}
EXPORT_SYMBOL_GPL(virq_to_hw);

148
arch/ia64/include/asm/cmpxchg.h
View File

@ -1 +1,147 @@
#include <asm/intrinsics.h>
#ifndef _ASM_IA64_CMPXCHG_H
#define _ASM_IA64_CMPXCHG_H
/*
* Compare/Exchange, forked from asm/intrinsics.h
* which was:
*
* Copyright (C) 2002-2003 Hewlett-Packard Co
* David Mosberger-Tang <davidm@hpl.hp.com>
*/
#ifndef __ASSEMBLY__
#include <linux/types.h>
/* include compiler specific intrinsics */
#include <asm/ia64regs.h>
#ifdef __INTEL_COMPILER
# include <asm/intel_intrin.h>
#else
# include <asm/gcc_intrin.h>
#endif
/*
* This function doesn't exist, so you'll get a linker error if
* something tries to do an invalid xchg().
*/
extern void ia64_xchg_called_with_bad_pointer(void);
#define __xchg(x, ptr, size) \
({ \
unsigned long __xchg_result; \
\
switch (size) { \
case 1: \
__xchg_result = ia64_xchg1((__u8 *)ptr, x); \
break; \
\
case 2: \
__xchg_result = ia64_xchg2((__u16 *)ptr, x); \
break; \
\
case 4: \
__xchg_result = ia64_xchg4((__u32 *)ptr, x); \
break; \
\
case 8: \
__xchg_result = ia64_xchg8((__u64 *)ptr, x); \
break; \
default: \
ia64_xchg_called_with_bad_pointer(); \
} \
__xchg_result; \
})
#define xchg(ptr, x) \
((__typeof__(*(ptr))) __xchg((unsigned long) (x), (ptr), sizeof(*(ptr))))
/*
* Atomic compare and exchange. Compare OLD with MEM, if identical,
* store NEW in MEM. Return the initial value in MEM. Success is
* indicated by comparing RETURN with OLD.
*/
#define __HAVE_ARCH_CMPXCHG 1
/*
* This function doesn't exist, so you'll get a linker error
* if something tries to do an invalid cmpxchg().
*/
extern long ia64_cmpxchg_called_with_bad_pointer(void);
#define ia64_cmpxchg(sem, ptr, old, new, size) \
({ \
__u64 _o_, _r_; \
\
switch (size) { \
case 1: \
_o_ = (__u8) (long) (old); \
break; \
case 2: \
_o_ = (__u16) (long) (old); \
break; \
case 4: \
_o_ = (__u32) (long) (old); \
break; \
case 8: \
_o_ = (__u64) (long) (old); \
break; \
default: \
break; \
} \
switch (size) { \
case 1: \
_r_ = ia64_cmpxchg1_##sem((__u8 *) ptr, new, _o_); \
break; \
\
case 2: \
_r_ = ia64_cmpxchg2_##sem((__u16 *) ptr, new, _o_); \
break; \
\
case 4: \
_r_ = ia64_cmpxchg4_##sem((__u32 *) ptr, new, _o_); \
break; \
\
case 8: \
_r_ = ia64_cmpxchg8_##sem((__u64 *) ptr, new, _o_); \
break; \
\
default: \
_r_ = ia64_cmpxchg_called_with_bad_pointer(); \
break; \
} \
(__typeof__(old)) _r_; \
})
#define cmpxchg_acq(ptr, o, n) \
ia64_cmpxchg(acq, (ptr), (o), (n), sizeof(*(ptr)))
#define cmpxchg_rel(ptr, o, n) \
ia64_cmpxchg(rel, (ptr), (o), (n), sizeof(*(ptr)))
/* for compatibility with other platforms: */
#define cmpxchg(ptr, o, n) cmpxchg_acq((ptr), (o), (n))
#define cmpxchg64(ptr, o, n) cmpxchg_acq((ptr), (o), (n))
#define cmpxchg_local cmpxchg
#define cmpxchg64_local cmpxchg64
#ifdef CONFIG_IA64_DEBUG_CMPXCHG
# define CMPXCHG_BUGCHECK_DECL int _cmpxchg_bugcheck_count = 128;
# define CMPXCHG_BUGCHECK(v) \
do { \
if (_cmpxchg_bugcheck_count-- <= 0) { \
void *ip; \
extern int printk(const char *fmt, ...); \
ip = (void *) ia64_getreg(_IA64_REG_IP); \
printk("CMPXCHG_BUGCHECK: stuck at %p on word %p\n", ip, (v));\
break; \
} \
} while (0)
#else /* !CONFIG_IA64_DEBUG_CMPXCHG */
# define CMPXCHG_BUGCHECK_DECL
# define CMPXCHG_BUGCHECK(v)
#endif /* !CONFIG_IA64_DEBUG_CMPXCHG */
#endif /* !__ASSEMBLY__ */
#endif /* _ASM_IA64_CMPXCHG_H */

9
arch/ia64/include/asm/futex.h
View File

@ -106,15 +106,16 @@ futex_atomic_cmpxchg_inatomic(u32 *uval, u32 __user *uaddr,
return -EFAULT;
{
register unsigned long r8 __asm ("r8") = 0;
register unsigned long r8 __asm ("r8");
unsigned long prev;
__asm__ __volatile__(
" mf;; \n"
" mov ar.ccv=%3;; \n"
"[1:] cmpxchg4.acq %0=[%1],%2,ar.ccv \n"
" mov %0=r0 \n"
" mov ar.ccv=%4;; \n"
"[1:] cmpxchg4.acq %1=[%2],%3,ar.ccv \n"
" .xdata4 \"__ex_table\", 1b-., 2f-. \n"
"[2:]"
: "=r" (prev)
: "=r" (r8), "=r" (prev)
: "r" (uaddr), "r" (newval),
"rO" ((long) (unsigned) oldval)
: "memory");

114
arch/ia64/include/asm/intrinsics.h
View File

@ -18,6 +18,7 @@
#else
# include <asm/gcc_intrin.h>
#endif
#include <asm/cmpxchg.h>
#define ia64_native_get_psr_i() (ia64_native_getreg(_IA64_REG_PSR) & IA64_PSR_I)
@ -81,119 +82,6 @@ extern unsigned long __bad_increment_for_ia64_fetch_and_add (void);
#define ia64_fetch_and_add(i,v) (ia64_fetchadd(i, v, rel) + (i)) /* return new value */
/*
* This function doesn't exist, so you'll get a linker error if
* something tries to do an invalid xchg().
*/
extern void ia64_xchg_called_with_bad_pointer (void);
#define __xchg(x,ptr,size) \
({ \
unsigned long __xchg_result; \
\
switch (size) { \
case 1: \
__xchg_result = ia64_xchg1((__u8 *)ptr, x); \
break; \
\
case 2: \
__xchg_result = ia64_xchg2((__u16 *)ptr, x); \
break; \
\
case 4: \
__xchg_result = ia64_xchg4((__u32 *)ptr, x); \
break; \
\
case 8: \
__xchg_result = ia64_xchg8((__u64 *)ptr, x); \
break; \
default: \
ia64_xchg_called_with_bad_pointer(); \
} \
__xchg_result; \
})
#define xchg(ptr,x) \
((__typeof__(*(ptr))) __xchg ((unsigned long) (x), (ptr), sizeof(*(ptr))))
/*
* Atomic compare and exchange. Compare OLD with MEM, if identical,
* store NEW in MEM. Return the initial value in MEM. Success is
* indicated by comparing RETURN with OLD.
*/
#define __HAVE_ARCH_CMPXCHG 1
/*
* This function doesn't exist, so you'll get a linker error
* if something tries to do an invalid cmpxchg().
*/
extern long ia64_cmpxchg_called_with_bad_pointer (void);
#define ia64_cmpxchg(sem,ptr,old,new,size) \
({ \
__u64 _o_, _r_; \
\
switch (size) { \
case 1: _o_ = (__u8 ) (long) (old); break; \
case 2: _o_ = (__u16) (long) (old); break; \
case 4: _o_ = (__u32) (long) (old); break; \
case 8: _o_ = (__u64) (long) (old); break; \
default: break; \
} \
switch (size) { \
case 1: \
_r_ = ia64_cmpxchg1_##sem((__u8 *) ptr, new, _o_); \
break; \
\
case 2: \
_r_ = ia64_cmpxchg2_##sem((__u16 *) ptr, new, _o_); \
break; \
\
case 4: \
_r_ = ia64_cmpxchg4_##sem((__u32 *) ptr, new, _o_); \
break; \
\
case 8: \
_r_ = ia64_cmpxchg8_##sem((__u64 *) ptr, new, _o_); \
break; \
\
default: \
_r_ = ia64_cmpxchg_called_with_bad_pointer(); \
break; \
} \
(__typeof__(old)) _r_; \
})
#define cmpxchg_acq(ptr, o, n) \
ia64_cmpxchg(acq, (ptr), (o), (n), sizeof(*(ptr)))
#define cmpxchg_rel(ptr, o, n) \
ia64_cmpxchg(rel, (ptr), (o), (n), sizeof(*(ptr)))
/* for compatibility with other platforms: */
#define cmpxchg(ptr, o, n) cmpxchg_acq((ptr), (o), (n))
#define cmpxchg64(ptr, o, n) cmpxchg_acq((ptr), (o), (n))
#define cmpxchg_local cmpxchg
#define cmpxchg64_local cmpxchg64
#ifdef CONFIG_IA64_DEBUG_CMPXCHG
# define CMPXCHG_BUGCHECK_DECL int _cmpxchg_bugcheck_count = 128;
# define CMPXCHG_BUGCHECK(v) \
do { \
if (_cmpxchg_bugcheck_count-- <= 0) { \
void *ip; \
extern int printk(const char *fmt, ...); \
ip = (void *) ia64_getreg(_IA64_REG_IP); \
printk("CMPXCHG_BUGCHECK: stuck at %p on word %p\n", ip, (v)); \
break; \
} \
} while (0)
#else /* !CONFIG_IA64_DEBUG_CMPXCHG */
# define CMPXCHG_BUGCHECK_DECL
# define CMPXCHG_BUGCHECK(v)
#endif /* !CONFIG_IA64_DEBUG_CMPXCHG */
#endif
#ifdef __KERNEL__

2
arch/powerpc/include/asm/irq.h
View File

@ -33,8 +33,6 @@ extern atomic_t ppc_n_lost_interrupts;
/* Same thing, used by the generic IRQ code */
#define NR_IRQS_LEGACY NUM_ISA_INTERRUPTS
struct irq_data;
extern irq_hw_number_t irqd_to_hwirq(struct irq_data *d);
extern irq_hw_number_t virq_to_hw(unsigned int virq);
/**

39
arch/powerpc/kernel/entry_32.S
View File

@ -206,40 +206,43 @@ reenable_mmu: /* re-enable mmu so we can */
andi. r10,r10,MSR_EE /* Did EE change? */
beq 1f
/* Save handler and return address into the 2 unused words
* of the STACK_FRAME_OVERHEAD (sneak sneak sneak). Everything
* else can be recovered from the pt_regs except r3 which for
* normal interrupts has been set to pt_regs and for syscalls
* is an argument, so we temporarily use ORIG_GPR3 to save it
*/
stw r9,8(r1)
stw r11,12(r1)
stw r3,ORIG_GPR3(r1)
/*
* The trace_hardirqs_off will use CALLER_ADDR0 and CALLER_ADDR1.
* If from user mode there is only one stack frame on the stack, and
* accessing CALLER_ADDR1 will cause oops. So we need create a dummy
* stack frame to make trace_hardirqs_off happy.
*
* This is handy because we also need to save a bunch of GPRs,
* r3 can be different from GPR3(r1) at this point, r9 and r11
* contains the old MSR and handler address respectively,
* r4 & r5 can contain page fault arguments that need to be passed
* along as well. r12, CCR, CTR, XER etc... are left clobbered as
* they aren't useful past this point (aren't syscall arguments),
* the rest is restored from the exception frame.
*/
stwu r1,-32(r1)
stw r9,8(r1)
stw r11,12(r1)
stw r3,16(r1)
stw r4,20(r1)
stw r5,24(r1)
andi. r12,r12,MSR_PR
beq 11f
stwu r1,-16(r1)
b 11f
bl trace_hardirqs_off
addi r1,r1,16
b 12f
11:
bl trace_hardirqs_off
12:
lwz r5,24(r1)
lwz r4,20(r1)
lwz r3,16(r1)
lwz r11,12(r1)
lwz r9,8(r1)
addi r1,r1,32
lwz r0,GPR0(r1)
lwz r3,ORIG_GPR3(r1)
lwz r4,GPR4(r1)
lwz r5,GPR5(r1)
lwz r6,GPR6(r1)
lwz r7,GPR7(r1)
lwz r8,GPR8(r1)
lwz r9,8(r1)
lwz r11,12(r1)
1: mtctr r11
mtlr r9
bctr /* jump to handler */

6
arch/powerpc/kernel/irq.c
View File

@ -560,12 +560,6 @@ void do_softirq(void)
local_irq_restore(flags);
}
irq_hw_number_t irqd_to_hwirq(struct irq_data *d)
{
return d->hwirq;
}
EXPORT_SYMBOL_GPL(irqd_to_hwirq);
irq_hw_number_t virq_to_hw(unsigned int virq)
{
struct irq_data *irq_data = irq_get_irq_data(virq);

4
arch/powerpc/kernel/process.c
View File

@ -1235,7 +1235,7 @@ void __ppc64_runlatch_on(void)
ctrl |= CTRL_RUNLATCH;
mtspr(SPRN_CTRLT, ctrl);
ti->local_flags |= TLF_RUNLATCH;
ti->local_flags |= _TLF_RUNLATCH;
}
/* Called with hard IRQs off */
@ -1244,7 +1244,7 @@ void __ppc64_runlatch_off(void)
struct thread_info *ti = current_thread_info();
unsigned long ctrl;
ti->local_flags &= ~TLF_RUNLATCH;
ti->local_flags &= ~_TLF_RUNLATCH;
ctrl = mfspr(SPRN_CTRLF);
ctrl &= ~CTRL_RUNLATCH;

2
arch/powerpc/platforms/cell/axon_msi.c
View File

@ -392,7 +392,7 @@ static int axon_msi_probe(struct platform_device *device)
}
memset(msic->fifo_virt, 0xff, MSIC_FIFO_SIZE_BYTES);
msic->irq_domain = irq_domain_add_nomap(dn, &msic_host_ops, msic);
msic->irq_domain = irq_domain_add_nomap(dn, 0, &msic_host_ops, msic);
if (!msic->irq_domain) {
printk(KERN_ERR "axon_msi: couldn't allocate irq_domain for %s\n",
dn->full_name);

2
arch/powerpc/platforms/cell/beat_interrupt.c
View File

@ -239,7 +239,7 @@ void __init beatic_init_IRQ(void)
ppc_md.get_irq = beatic_get_irq;
/* Allocate an irq host */
beatic_host = irq_domain_add_nomap(NULL, &beatic_pic_host_ops, NULL);
beatic_host = irq_domain_add_nomap(NULL, 0, &beatic_pic_host_ops, NULL);
BUG_ON(beatic_host == NULL);
irq_set_default_host(beatic_host);
}

2
arch/powerpc/platforms/powermac/smp.c
View File

@ -192,7 +192,7 @@ static int psurge_secondary_ipi_init(void)
{
int rc = -ENOMEM;
psurge_host = irq_domain_add_nomap(NULL, &psurge_host_ops, NULL);
psurge_host = irq_domain_add_nomap(NULL, 0, &psurge_host_ops, NULL);
if (psurge_host)
psurge_secondary_virq = irq_create_direct_mapping(psurge_host);

3
arch/powerpc/platforms/ps3/interrupt.c
View File

@ -753,9 +753,8 @@ void __init ps3_init_IRQ(void)
unsigned cpu;
struct irq_domain *host;
host = irq_domain_add_nomap(NULL, &ps3_host_ops, NULL);
host = irq_domain_add_nomap(NULL, PS3_PLUG_MAX + 1, &ps3_host_ops, NULL);
irq_set_default_host(host);
irq_set_virq_count(PS3_PLUG_MAX + 1);
for_each_possible_cpu(cpu) {
struct ps3_private *pd = &per_cpu(ps3_private, cpu);

1
arch/s390/Kconfig
View File

@ -90,7 +90,6 @@ config S390
select HAVE_KERNEL_XZ
select HAVE_ARCH_MUTEX_CPU_RELAX
select HAVE_ARCH_JUMP_LABEL if !MARCH_G5
select HAVE_RCU_TABLE_FREE if SMP
select ARCH_SAVE_PAGE_KEYS if HIBERNATION
select HAVE_MEMBLOCK
select HAVE_MEMBLOCK_NODE_MAP

37
arch/s390/defconfig
View File

@ -1,8 +1,12 @@
CONFIG_EXPERIMENTAL=y
CONFIG_SYSVIPC=y
CONFIG_POSIX_MQUEUE=y
CONFIG_FHANDLE=y
CONFIG_TASKSTATS=y
CONFIG_TASK_DELAY_ACCT=y
CONFIG_TASK_XACCT=y
CONFIG_TASK_IO_ACCOUNTING=y
CONFIG_AUDIT=y
CONFIG_RCU_TRACE=y
CONFIG_IKCONFIG=y
CONFIG_IKCONFIG_PROC=y
CONFIG_CGROUPS=y
@ -14,16 +18,22 @@ CONFIG_CGROUP_MEM_RES_CTLR_SWAP=y
CONFIG_CGROUP_SCHED=y
CONFIG_RT_GROUP_SCHED=y
CONFIG_BLK_CGROUP=y
CONFIG_NAMESPACES=y
CONFIG_BLK_DEV_INITRD=y
# CONFIG_CC_OPTIMIZE_FOR_SIZE is not set
CONFIG_RD_BZIP2=y
CONFIG_RD_LZMA=y
CONFIG_RD_XZ=y
CONFIG_RD_LZO=y
CONFIG_EXPERT=y
# CONFIG_COMPAT_BRK is not set
CONFIG_SLAB=y
CONFIG_PROFILING=y
CONFIG_OPROFILE=y
CONFIG_KPROBES=y
CONFIG_MODULES=y
CONFIG_MODULE_UNLOAD=y
CONFIG_MODVERSIONS=y
CONFIG_PARTITION_ADVANCED=y
CONFIG_IBM_PARTITION=y
CONFIG_DEFAULT_DEADLINE=y
CONFIG_NO_HZ=y
CONFIG_HIGH_RES_TIMERS=y
@ -34,18 +44,15 @@ CONFIG_KSM=y
CONFIG_BINFMT_MISC=m
CONFIG_CMM=m
CONFIG_HZ_100=y
CONFIG_KEXEC=y
CONFIG_PM=y
CONFIG_CRASH_DUMP=y
CONFIG_HIBERNATION=y
CONFIG_PACKET=y
CONFIG_UNIX=y
CONFIG_NET_KEY=y
CONFIG_AFIUCV=m
CONFIG_INET=y
CONFIG_IP_MULTICAST=y
# CONFIG_INET_LRO is not set
CONFIG_IPV6=y
CONFIG_NET_SCTPPROBE=m
CONFIG_L2TP=m
CONFIG_L2TP_DEBUGFS=m
CONFIG_VLAN_8021Q=y
@ -84,15 +91,14 @@ CONFIG_SCSI_CONSTANTS=y
CONFIG_SCSI_LOGGING=y
CONFIG_SCSI_SCAN_ASYNC=y
CONFIG_ZFCP=y
CONFIG_ZFCP_DIF=y
CONFIG_NETDEVICES=y
CONFIG_DUMMY=m
CONFIG_BONDING=m
CONFIG_DUMMY=m
CONFIG_EQUALIZER=m
CONFIG_TUN=m
CONFIG_NET_ETHERNET=y
CONFIG_VIRTIO_NET=y
CONFIG_RAW_DRIVER=m
CONFIG_VIRTIO_BALLOON=y
CONFIG_EXT2_FS=y
CONFIG_EXT3_FS=y
# CONFIG_EXT3_DEFAULTS_TO_ORDERED is not set
@ -103,27 +109,21 @@ CONFIG_PROC_KCORE=y
CONFIG_TMPFS=y
CONFIG_TMPFS_POSIX_ACL=y
# CONFIG_NETWORK_FILESYSTEMS is not set
CONFIG_PARTITION_ADVANCED=y
CONFIG_IBM_PARTITION=y
CONFIG_DLM=m
CONFIG_MAGIC_SYSRQ=y
CONFIG_DEBUG_KERNEL=y
CONFIG_TIMER_STATS=y
CONFIG_PROVE_LOCKING=y
CONFIG_PROVE_RCU=y
CONFIG_LOCK_STAT=y
CONFIG_DEBUG_LOCKDEP=y
CONFIG_DEBUG_SPINLOCK_SLEEP=y
CONFIG_DEBUG_LIST=y
CONFIG_DEBUG_NOTIFIERS=y
# CONFIG_RCU_CPU_STALL_DETECTOR is not set
CONFIG_RCU_TRACE=y
CONFIG_KPROBES_SANITY_TEST=y
CONFIG_DEBUG_FORCE_WEAK_PER_CPU=y
CONFIG_CPU_NOTIFIER_ERROR_INJECT=m
CONFIG_LATENCYTOP=y
CONFIG_SYSCTL_SYSCALL_CHECK=y
CONFIG_DEBUG_PAGEALLOC=y
# CONFIG_FTRACE is not set
CONFIG_BLK_DEV_IO_TRACE=y
# CONFIG_STRICT_DEVMEM is not set
CONFIG_CRYPTO_NULL=m
CONFIG_CRYPTO_CRYPTD=m
@ -173,4 +173,3 @@ CONFIG_CRYPTO_SHA512_S390=m
CONFIG_CRYPTO_DES_S390=m
CONFIG_CRYPTO_AES_S390=m
CONFIG_CRC7=m
CONFIG_VIRTIO_BALLOON=y

3
arch/s390/include/asm/facility.h
View File

@ -38,12 +38,11 @@ static inline void stfle(u64 *stfle_fac_list, int size)
unsigned long nr;
preempt_disable();
S390_lowcore.stfl_fac_list = 0;
asm volatile(
" .insn s,0xb2b10000,0(0)\n" /* stfl */
"0:\n"
EX_TABLE(0b, 0b)
: "=m" (S390_lowcore.stfl_fac_list));
: "+m" (S390_lowcore.stfl_fac_list));
nr = 4; /* bytes stored by stfl */
memcpy(stfle_fac_list, &S390_lowcore.stfl_fac_list, 4);
if (S390_lowcore.stfl_fac_list & 0x01000000) {

3
arch/s390/include/asm/pgalloc.h
View File

@ -22,10 +22,7 @@ void crst_table_free(struct mm_struct *, unsigned long *);
unsigned long *page_table_alloc(struct mm_struct *, unsigned long);
void page_table_free(struct mm_struct *, unsigned long *);
#ifdef CONFIG_HAVE_RCU_TABLE_FREE
void page_table_free_rcu(struct mmu_gather *, unsigned long *);
void __tlb_remove_table(void *_table);
#endif
static inline void clear_table(unsigned long *s, unsigned long val, size_t n)
{

2
arch/s390/include/asm/swab.h
View File

@ -77,7 +77,7 @@ static inline __u16 __arch_swab16p(const __u16 *x)
asm volatile(
#ifndef __s390x__
" icm %0,2,%O+1(%R1)\n"
" icm %0,2,%O1+1(%R1)\n"
" ic %0,%1\n"
: "=&d" (result) : "Q" (*x) : "cc");
#else /* __s390x__ */

22
arch/s390/include/asm/tlb.h
View File

@ -30,14 +30,10 @@
struct mmu_gather {
struct mm_struct *mm;
#ifdef CONFIG_HAVE_RCU_TABLE_FREE
struct mmu_table_batch *batch;
#endif
unsigned int fullmm;
unsigned int need_flush;
};
#ifdef CONFIG_HAVE_RCU_TABLE_FREE
struct mmu_table_batch {
struct rcu_head rcu;
unsigned int nr;
@ -49,7 +45,6 @@ struct mmu_table_batch {
extern void tlb_table_flush(struct mmu_gather *tlb);
extern void tlb_remove_table(struct mmu_gather *tlb, void *table);
#endif
static inline void tlb_gather_mmu(struct mmu_gather *tlb,
struct mm_struct *mm,
@ -57,29 +52,20 @@ static inline void tlb_gather_mmu(struct mmu_gather *tlb,
{
tlb->mm = mm;
tlb->fullmm = full_mm_flush;
tlb->need_flush = 0;
#ifdef CONFIG_HAVE_RCU_TABLE_FREE
tlb->batch = NULL;
#endif
if (tlb->fullmm)
__tlb_flush_mm(mm);
}
static inline void tlb_flush_mmu(struct mmu_gather *tlb)
{
if (!tlb->need_flush)
return;
tlb->need_flush = 0;
__tlb_flush_mm(tlb->mm);
#ifdef CONFIG_HAVE_RCU_TABLE_FREE
tlb_table_flush(tlb);
#endif
}
static inline void tlb_finish_mmu(struct mmu_gather *tlb,
unsigned long start, unsigned long end)
{
tlb_flush_mmu(tlb);
tlb_table_flush(tlb);
}
/*
@ -105,10 +91,8 @@ static inline void tlb_remove_page(struct mmu_gather *tlb, struct page *page)
static inline void pte_free_tlb(struct mmu_gather *tlb, pgtable_t pte,
unsigned long address)
{
#ifdef CONFIG_HAVE_RCU_TABLE_FREE
if (!tlb->fullmm)
return page_table_free_rcu(tlb, (unsigned long *) pte);
#endif
page_table_free(tlb->mm, (unsigned long *) pte);
}
@ -125,10 +109,8 @@ static inline void pmd_free_tlb(struct mmu_gather *tlb, pmd_t *pmd,
#ifdef __s390x__
if (tlb->mm->context.asce_limit <= (1UL << 31))
return;
#ifdef CONFIG_HAVE_RCU_TABLE_FREE
if (!tlb->fullmm)
return tlb_remove_table(tlb, pmd);
#endif
crst_table_free(tlb->mm, (unsigned long *) pmd);
#endif
}
@ -146,10 +128,8 @@ static inline void pud_free_tlb(struct mmu_gather *tlb, pud_t *pud,
#ifdef __s390x__
if (tlb->mm->context.asce_limit <= (1UL << 42))
return;
#ifdef CONFIG_HAVE_RCU_TABLE_FREE
if (!tlb->fullmm)
return tlb_remove_table(tlb, pud);
#endif
crst_table_free(tlb->mm, (unsigned long *) pud);
#endif
}

2
arch/s390/kernel/head.S
View File

@ -474,9 +474,9 @@ ENTRY(startup_kdump)
stck __LC_LAST_UPDATE_CLOCK
spt 5f-.LPG0(%r13)
mvc __LC_LAST_UPDATE_TIMER(8),5f-.LPG0(%r13)
xc __LC_STFL_FAC_LIST(8),__LC_STFL_FAC_LIST
#ifndef CONFIG_MARCH_G5
# check capabilities against MARCH_{G5,Z900,Z990,Z9_109,Z10}
xc __LC_STFL_FAC_LIST(8),__LC_STFL_FAC_LIST
.insn s,0xb2b10000,__LC_STFL_FAC_LIST # store facility list
tm __LC_STFL_FAC_LIST,0x01 # stfle available ?
jz 0f

9
arch/s390/kernel/irq.c
View File

@ -118,9 +118,10 @@ asmlinkage void do_softirq(void)
"a" (__do_softirq)
: "0", "1", "2", "3", "4", "5", "14",
"cc", "memory" );
} else
} else {
/* We are already on the async stack. */
__do_softirq();
}
}
local_irq_restore(flags);
@ -192,11 +193,12 @@ int unregister_external_interrupt(u16 code, ext_int_handler_t handler)
int index = ext_hash(code);
spin_lock_irqsave(&ext_int_hash_lock, flags);
list_for_each_entry_rcu(p, &ext_int_hash[index], entry)
list_for_each_entry_rcu(p, &ext_int_hash[index], entry) {
if (p->code == code && p->handler == handler) {
list_del_rcu(&p->entry);
kfree_rcu(p, rcu);
}
}
spin_unlock_irqrestore(&ext_int_hash_lock, flags);
return 0;
}
@ -211,9 +213,10 @@ void __irq_entry do_extint(struct pt_regs *regs, struct ext_code ext_code,
old_regs = set_irq_regs(regs);
irq_enter();
if (S390_lowcore.int_clock >= S390_lowcore.clock_comparator)
if (S390_lowcore.int_clock >= S390_lowcore.clock_comparator) {
/* Serve timer interrupts first. */
clock_comparator_work();
}
kstat_cpu(smp_processor_id()).irqs[EXTERNAL_INTERRUPT]++;
if (ext_code.code != 0x1004)
__get_cpu_var(s390_idle).nohz_delay = 1;

4
arch/s390/kernel/perf_cpum_cf.c
View File

@ -178,7 +178,7 @@ static void cpumf_pmu_enable(struct pmu *pmu)
err = lcctl(cpuhw->state);
if (err) {
pr_err("Enabling the performance measuring unit "
"failed with rc=%lx\n", err);
"failed with rc=%x\n", err);
return;
}
@ -203,7 +203,7 @@ static void cpumf_pmu_disable(struct pmu *pmu)
err = lcctl(inactive);
if (err) {
pr_err("Disabling the performance measuring unit "
"failed with rc=%lx\n", err);
"failed with rc=%x\n", err);
return;
}

27
arch/s390/mm/maccess.c
View File

@ -61,21 +61,14 @@ long probe_kernel_write(void *dst, const void *src, size_t size)
return copied < 0 ? -EFAULT : 0;
}
/*
* Copy memory in real mode (kernel to kernel)
*/
int memcpy_real(void *dest, void *src, size_t count)
static int __memcpy_real(void *dest, void *src, size_t count)
{
register unsigned long _dest asm("2") = (unsigned long) dest;
register unsigned long _len1 asm("3") = (unsigned long) count;
register unsigned long _src asm("4") = (unsigned long) src;
register unsigned long _len2 asm("5") = (unsigned long) count;
unsigned long flags;
int rc = -EFAULT;
if (!count)
return 0;
flags = __arch_local_irq_stnsm(0xf8UL);
asm volatile (
"0: mvcle %1,%2,0x0\n"
"1: jo 0b\n"
@ -86,7 +79,23 @@ int memcpy_real(void *dest, void *src, size_t count)
"+d" (_len2), "=m" (*((long *) dest))
: "m" (*((long *) src))
: "cc", "memory");
arch_local_irq_restore(flags);
return rc;
}
/*
* Copy memory in real mode (kernel to kernel)
*/
int memcpy_real(void *dest, void *src, size_t count)
{
unsigned long flags;
int rc;
if (!count)
return 0;
local_irq_save(flags);
__arch_local_irq_stnsm(0xfbUL);
rc = __memcpy_real(dest, src, count);
local_irq_restore(flags);
return rc;
}

63
arch/s390/mm/pgtable.c
View File

@ -678,8 +678,6 @@ void page_table_free(struct mm_struct *mm, unsigned long *table)
}
}
#ifdef CONFIG_HAVE_RCU_TABLE_FREE
static void __page_table_free_rcu(void *table, unsigned bit)
{
struct page *page;
@ -733,7 +731,66 @@ void __tlb_remove_table(void *_table)
free_pages((unsigned long) table, ALLOC_ORDER);
}
#endif
static void tlb_remove_table_smp_sync(void *arg)
{
/* Simply deliver the interrupt */
}
static void tlb_remove_table_one(void *table)
{
/*
* This isn't an RCU grace period and hence the page-tables cannot be
* assumed to be actually RCU-freed.
*
* It is however sufficient for software page-table walkers that rely
* on IRQ disabling. See the comment near struct mmu_table_batch.
*/
smp_call_function(tlb_remove_table_smp_sync, NULL, 1);
__tlb_remove_table(table);
}
static void tlb_remove_table_rcu(struct rcu_head *head)
{
struct mmu_table_batch *batch;
int i;
batch = container_of(head, struct mmu_table_batch, rcu);
for (i = 0; i < batch->nr; i++)
__tlb_remove_table(batch->tables[i]);
free_page((unsigned long)batch);
}
void tlb_table_flush(struct mmu_gather *tlb)
{
struct mmu_table_batch **batch = &tlb->batch;
if (*batch) {
__tlb_flush_mm(tlb->mm);
call_rcu_sched(&(*batch)->rcu, tlb_remove_table_rcu);
*batch = NULL;
}
}
void tlb_remove_table(struct mmu_gather *tlb, void *table)
{
struct mmu_table_batch **batch = &tlb->batch;
if (*batch == NULL) {
*batch = (struct mmu_table_batch *)
__get_free_page(GFP_NOWAIT | __GFP_NOWARN);
if (*batch == NULL) {
__tlb_flush_mm(tlb->mm);
tlb_remove_table_one(table);
return;
}
(*batch)->nr = 0;
}
(*batch)->tables[(*batch)->nr++] = table;
if ((*batch)->nr == MAX_TABLE_BATCH)
tlb_table_flush(tlb);
}
/*
* switch on pgstes for its userspace process (for kvm)

2
arch/sparc/kernel/ds.c
View File

@ -1264,4 +1264,4 @@ static int __init ds_init(void)
return vio_register_driver(&ds_driver);
}
subsys_initcall(ds_init);
fs_initcall(ds_init);

13
arch/sparc/kernel/leon_pci.c
View File

@ -45,7 +45,6 @@ void leon_pci_init(struct platform_device *ofdev, struct leon_pci_info *info)
void __devinit pcibios_fixup_bus(struct pci_bus *pbus)
{
struct leon_pci_info *info = pbus->sysdata;
struct pci_dev *dev;
int i, has_io, has_mem;
u16 cmd;
@ -111,18 +110,6 @@ int pcibios_enable_device(struct pci_dev *dev, int mask)
return pci_enable_resources(dev, mask);
}
struct device_node *pci_device_to_OF_node(struct pci_dev *pdev)
{
/*
* Currently the OpenBoot nodes are not connected with the PCI device,
* this is because the LEON PROM does not create PCI nodes. Eventually
* this will change and the same approach as pcic.c can be used to
* match PROM nodes with pci devices.
*/
return NULL;
}
EXPORT_SYMBOL(pci_device_to_OF_node);
void __devinit pcibios_update_irq(struct pci_dev *dev, int irq)
{
#ifdef CONFIG_PCI_DEBUG

7
arch/sparc/kernel/rtrap_64.S
View File

@ -20,11 +20,6 @@
.text
.align 32
__handle_softirq:
call do_softirq
nop
ba,a,pt %xcc, __handle_softirq_continue
nop
__handle_preemption:
call schedule
wrpr %g0, RTRAP_PSTATE, %pstate
@ -89,9 +84,7 @@ rtrap:
cmp %l1, 0
/* mm/ultra.S:xcall_report_regs KNOWS about this load. */
bne,pn %icc, __handle_softirq
ldx [%sp + PTREGS_OFF + PT_V9_TSTATE], %l1
__handle_softirq_continue:
rtrap_xcall:
sethi %hi(0xf << 20), %l4
and %l1, %l4, %l4

37
arch/sparc/mm/fault_32.c
View File

@ -225,6 +225,8 @@ asmlinkage void do_sparc_fault(struct pt_regs *regs, int text_fault, int write,
unsigned long g2;
int from_user = !(regs->psr & PSR_PS);
int fault, code;
unsigned int flags = (FAULT_FLAG_ALLOW_RETRY | FAULT_FLAG_KILLABLE |
(write ? FAULT_FLAG_WRITE : 0));
if(text_fault)
address = regs->pc;
@ -251,6 +253,7 @@ asmlinkage void do_sparc_fault(struct pt_regs *regs, int text_fault, int write,
perf_sw_event(PERF_COUNT_SW_PAGE_FAULTS, 1, regs, address);
retry:
down_read(&mm->mmap_sem);
/*
@ -289,7 +292,11 @@ good_area:
* make sure we exit gracefully rather than endlessly redo
* the fault.
*/
fault = handle_mm_fault(mm, vma, address, write ? FAULT_FLAG_WRITE : 0);
fault = handle_mm_fault(mm, vma, address, flags);
if ((fault & VM_FAULT_RETRY) && fatal_signal_pending(current))
return;
if (unlikely(fault & VM_FAULT_ERROR)) {
if (fault & VM_FAULT_OOM)
goto out_of_memory;
@ -297,13 +304,29 @@ good_area:
goto do_sigbus;
BUG();
}
if (fault & VM_FAULT_MAJOR) {
current->maj_flt++;
perf_sw_event(PERF_COUNT_SW_PAGE_FAULTS_MAJ, 1, regs, address);
} else {
current->min_flt++;
perf_sw_event(PERF_COUNT_SW_PAGE_FAULTS_MIN, 1, regs, address);
if (flags & FAULT_FLAG_ALLOW_RETRY) {
if (fault & VM_FAULT_MAJOR) {
current->maj_flt++;
perf_sw_event(PERF_COUNT_SW_PAGE_FAULTS_MAJ,
1, regs, address);
} else {
current->min_flt++;
perf_sw_event(PERF_COUNT_SW_PAGE_FAULTS_MIN,
1, regs, address);
}
if (fault & VM_FAULT_RETRY) {
flags &= ~FAULT_FLAG_ALLOW_RETRY;
/* No need to up_read(&mm->mmap_sem) as we would
* have already released it in __lock_page_or_retry
* in mm/filemap.c.
*/
goto retry;
}
}
up_read(&mm->mmap_sem);
return;

37
arch/sparc/mm/fault_64.c
View File

@ -279,6 +279,7 @@ asmlinkage void __kprobes do_sparc64_fault(struct pt_regs *regs)
unsigned int insn = 0;
int si_code, fault_code, fault;
unsigned long address, mm_rss;
unsigned int flags = FAULT_FLAG_ALLOW_RETRY | FAULT_FLAG_KILLABLE;
fault_code = get_thread_fault_code();
@ -333,6 +334,8 @@ asmlinkage void __kprobes do_sparc64_fault(struct pt_regs *regs)
insn = get_fault_insn(regs, insn);
goto handle_kernel_fault;
}
retry:
down_read(&mm->mmap_sem);
}
@ -423,7 +426,12 @@ good_area:
goto bad_area;
}
fault = handle_mm_fault(mm, vma, address, (fault_code & FAULT_CODE_WRITE) ? FAULT_FLAG_WRITE : 0);
flags |= ((fault_code & FAULT_CODE_WRITE) ? FAULT_FLAG_WRITE : 0);
fault = handle_mm_fault(mm, vma, address, flags);
if ((fault & VM_FAULT_RETRY) && fatal_signal_pending(current))
return;
if (unlikely(fault & VM_FAULT_ERROR)) {
if (fault & VM_FAULT_OOM)
goto out_of_memory;
@ -431,12 +439,27 @@ good_area:
goto do_sigbus;
BUG();
}
if (fault & VM_FAULT_MAJOR) {
current->maj_flt++;
perf_sw_event(PERF_COUNT_SW_PAGE_FAULTS_MAJ, 1, regs, address);
} else {
current->min_flt++;
perf_sw_event(PERF_COUNT_SW_PAGE_FAULTS_MIN, 1, regs, address);
if (flags & FAULT_FLAG_ALLOW_RETRY) {
if (fault & VM_FAULT_MAJOR) {
current->maj_flt++;
perf_sw_event(PERF_COUNT_SW_PAGE_FAULTS_MAJ,
1, regs, address);
} else {
current->min_flt++;
perf_sw_event(PERF_COUNT_SW_PAGE_FAULTS_MIN,
1, regs, address);
}
if (fault & VM_FAULT_RETRY) {
flags &= ~FAULT_FLAG_ALLOW_RETRY;
/* No need to up_read(&mm->mmap_sem) as we would
* have already released it in __lock_page_or_retry
* in mm/filemap.c.
*/
goto retry;
}
}
up_read(&mm->mmap_sem);

4
arch/tile/kernel/proc.c
View File

@ -146,7 +146,6 @@ static ctl_table unaligned_table[] = {
},
{}
};
#endif
static struct ctl_path tile_path[] = {
{ .procname = "tile" },
@ -155,10 +154,9 @@ static struct ctl_path tile_path[] = {
static int __init proc_sys_tile_init(void)
{
#ifndef __tilegx__ /* FIXME: GX: no support for unaligned access yet */
register_sysctl_paths(tile_path, unaligned_table);
#endif
return 0;
}
arch_initcall(proc_sys_tile_init);
#endif

2
arch/tile/kernel/smpboot.c
View File

@ -196,6 +196,8 @@ void __cpuinit online_secondary(void)
/* This must be done before setting cpu_online_mask */
wmb();
notify_cpu_starting(smp_processor_id());
/*
* We need to hold call_lock, so there is no inconsistency
* between the time smp_call_function() determines number of

35
arch/um/drivers/cow.h
View File

@ -3,41 +3,6 @@
#include <asm/types.h>
#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
/* 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,
unsigned long *bitmap_len_out, int *data_offset_out);

43
arch/um/drivers/cow_user.c
View File

@ -8,11 +8,10 @@
* that.
*/
#include <unistd.h>
#include <byteswap.h>
#include <errno.h>
#include <string.h>
#include <arpa/inet.h>
#include <asm/types.h>
#include <endian.h>
#include "cow.h"
#include "cow_sys.h"
@ -214,8 +213,8 @@ int write_cow_header(char *cow_file, int fd, char *backing_file,
"header\n");
goto out;
}
header->magic = htonl(COW_MAGIC);
header->version = htonl(COW_VERSION);
header->magic = htobe32(COW_MAGIC);
header->version = htobe32(COW_VERSION);
err = -EINVAL;
if (strlen(backing_file) > sizeof(header->backing_file) - 1) {
@ -246,10 +245,10 @@ int write_cow_header(char *cow_file, int fd, char *backing_file,
goto out_free;
}
header->mtime = htonl(modtime);
header->size = htonll(*size);
header->sectorsize = htonl(sectorsize);
header->alignment = htonl(alignment);
header->mtime = htobe32(modtime);
header->size = htobe64(*size);
header->sectorsize = htobe32(sectorsize);
header->alignment = htobe32(alignment);
header->cow_format = COW_BITMAP;
err = cow_write_file(fd, header, sizeof(*header));
@ -301,8 +300,8 @@ int read_cow_header(int (*reader)(__u64, char *, int, void *), void *arg,
magic = header->v1.magic;
if (magic == COW_MAGIC)
version = header->v1.version;
else if (magic == ntohl(COW_MAGIC))
version = ntohl(header->v1.version);
else if (magic == be32toh(COW_MAGIC))
version = be32toh(header->v1.version);
/* No error printed because the non-COW case comes through here */
else goto out;
@ -327,9 +326,9 @@ int read_cow_header(int (*reader)(__u64, char *, int, void *), void *arg,
"header\n");
goto out;
}
*mtime_out = ntohl(header->v2.mtime);
*size_out = ntohll(header->v2.size);
*sectorsize_out = ntohl(header->v2.sectorsize);
*mtime_out = be32toh(header->v2.mtime);
*size_out = be64toh(header->v2.size);
*sectorsize_out = be32toh(header->v2.sectorsize);
*bitmap_offset_out = sizeof(header->v2);
*align_out = *sectorsize_out;
file = header->v2.backing_file;
@ -341,10 +340,10 @@ int read_cow_header(int (*reader)(__u64, char *, int, void *), void *arg,
"header\n");
goto out;
}
*mtime_out = ntohl(header->v3.mtime);
*size_out = ntohll(header->v3.size);
*sectorsize_out = ntohl(header->v3.sectorsize);
*align_out = ntohl(header->v3.alignment);
*mtime_out = be32toh(header->v3.mtime);
*size_out = be64toh(header->v3.size);
*sectorsize_out = be32toh(header->v3.sectorsize);
*align_out = be32toh(header->v3.alignment);
if (*align_out == 0) {
cow_printf("read_cow_header - invalid COW header, "
"align == 0\n");
@ -366,16 +365,16 @@ int read_cow_header(int (*reader)(__u64, char *, int, void *), void *arg,
* this was used until Dec2005 - 64bits are needed to represent
* 2038+. I.e. we can safely do this truncating cast.
*
* Additionally, we must use ntohl() instead of ntohll(), since
* Additionally, we must use be32toh() instead of be64toh(), since
* the program used to use the former (tested - I got mtime
* mismatch "0 vs whatever").
*
* Ever heard about bug-to-bug-compatibility ? ;-) */
*mtime_out = (time32_t) ntohl(header->v3_b.mtime);
*mtime_out = (time32_t) be32toh(header->v3_b.mtime);
*size_out = ntohll(header->v3_b.size);
*sectorsize_out = ntohl(header->v3_b.sectorsize);
*align_out = ntohl(header->v3_b.alignment);
*size_out = be64toh(header->v3_b.size);
*sectorsize_out = be32toh(header->v3_b.sectorsize);
*align_out = be32toh(header->v3_b.alignment);
if (*align_out == 0) {
cow_printf("read_cow_header - invalid COW header, "
"align == 0\n");

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

@ -22,6 +22,7 @@
#include <linux/workqueue.h>
#include <linux/mutex.h>
#include <asm/uaccess.h>
#include <asm/switch_to.h>
#include "init.h"
#include "irq_kern.h"

3
arch/um/include/asm/Kbuild
View File

@ -1,3 +1,4 @@
generic-y += bug.h cputime.h device.h emergency-restart.h futex.h hardirq.h
generic-y += hw_irq.h irq_regs.h kdebug.h percpu.h sections.h topology.h xor.h
generic-y += ftrace.h pci.h io.h param.h delay.h mutex.h current.h
generic-y += ftrace.h pci.h io.h param.h delay.h mutex.h current.h exec.h
generic-y += switch_to.h

7
arch/um/kernel/Makefile
View File

@ -3,9 +3,10 @@
# Licensed under the GPL
#
CPPFLAGS_vmlinux.lds := -DSTART=$(LDS_START) \
-DELF_ARCH=$(LDS_ELF_ARCH) \
-DELF_FORMAT=$(LDS_ELF_FORMAT)
CPPFLAGS_vmlinux.lds := -DSTART=$(LDS_START) \
-DELF_ARCH=$(LDS_ELF_ARCH) \
-DELF_FORMAT=$(LDS_ELF_FORMAT) \
$(LDS_EXTRA)
extra-y := vmlinux.lds
clean-files :=

6
arch/um/kernel/process.c
View File

@ -88,11 +88,8 @@ static inline void set_current(struct task_struct *task)
extern void arch_switch_to(struct task_struct *to);
void *_switch_to(void *prev, void *next, void *last)
void *__switch_to(struct task_struct *from, struct task_struct *to)
{
struct task_struct *from = prev;
struct task_struct *to = next;
to->thread.prev_sched = from;
set_current(to);
@ -111,7 +108,6 @@ void *_switch_to(void *prev, void *next, void *last)
} while (current->thread.saved_task);
return current->thread.prev_sched;
}
void interrupt_end(void)

1
arch/um/kernel/skas/mmu.c
View File

@ -103,7 +103,6 @@ int init_new_context(struct task_struct *task, struct mm_struct *mm)
void uml_setup_stubs(struct mm_struct *mm)
{
struct page **pages;
int err, ret;
if (!skas_needs_stub)

3
arch/x86/Makefile.um
View File

@ -14,6 +14,9 @@ LINK-y += $(call cc-option,-m32)
export LDFLAGS
LDS_EXTRA := -Ui386
export LDS_EXTRA
# First of all, tune CFLAGS for the specific CPU. This actually sets cflags-y.
include $(srctree)/arch/x86/Makefile_32.cpu

4
arch/x86/include/asm/cmpxchg.h
View File

@ -43,7 +43,7 @@ extern void __add_wrong_size(void)
switch (sizeof(*(ptr))) { \
case __X86_CASE_B: \
asm volatile (lock #op "b %b0, %1\n" \
: "+r" (__ret), "+m" (*(ptr)) \
: "+q" (__ret), "+m" (*(ptr)) \
: : "memory", "cc"); \
break; \
case __X86_CASE_W: \
@ -173,7 +173,7 @@ extern void __add_wrong_size(void)
switch (sizeof(*(ptr))) { \
case __X86_CASE_B: \
asm volatile (lock "addb %b1, %0\n" \
: "+m" (*(ptr)) : "ri" (inc) \
: "+m" (*(ptr)) : "qi" (inc) \
: "memory", "cc"); \
break; \
case __X86_CASE_W: \

2
arch/x86/include/asm/uaccess.h
View File

@ -557,6 +557,8 @@ struct __large_struct { unsigned long buf[100]; };
extern unsigned long
copy_from_user_nmi(void *to, const void __user *from, unsigned long n);
extern __must_check long
strncpy_from_user(char *dst, const char __user *src, long count);
/*
* movsl can be slow when source and dest are not both 8-byte aligned

5
arch/x86/include/asm/uaccess_32.h
View File

@ -213,11 +213,6 @@ static inline unsigned long __must_check copy_from_user(void *to,
return n;
}
long __must_check strncpy_from_user(char *dst, const char __user *src,
long count);
long __must_check __strncpy_from_user(char *dst,
const char __user *src, long count);
/**
* strlen_user: - Get the size of a string in user space.
* @str: The string to measure.

4
arch/x86/include/asm/uaccess_64.h
View File

@ -208,10 +208,6 @@ int __copy_in_user(void __user *dst, const void __user *src, unsigned size)
}
}
__must_check long
strncpy_from_user(char *dst, const char __user *src, long count);
__must_check long
__strncpy_from_user(char *dst, const char __user *src, long count);
__must_check long strnlen_user(const char __user *str, long n);
__must_check long __strnlen_user(const char __user *str, long n);
__must_check long strlen_user(const char __user *str);

6
arch/x86/kernel/vsyscall_64.c
View File

@ -216,9 +216,9 @@ bool emulate_vsyscall(struct pt_regs *regs, unsigned long address)
current_thread_info()->sig_on_uaccess_error = 1;
/*
* 0 is a valid user pointer (in the access_ok sense) on 32-bit and
* NULL is a valid user pointer (in the access_ok sense) on 32-bit and
* 64-bit, so we don't need to special-case it here. For all the
* vsyscalls, 0 means "don't write anything" not "write it at
* vsyscalls, NULL means "don't write anything" not "write it at
* address 0".
*/
ret = -EFAULT;
@ -247,7 +247,7 @@ bool emulate_vsyscall(struct pt_regs *regs, unsigned long address)
ret = sys_getcpu((unsigned __user *)regs->di,
(unsigned __user *)regs->si,
0);
NULL);
break;
}

18
arch/x86/kvm/pmu.c
View File

@ -459,17 +459,17 @@ void kvm_pmu_cpuid_update(struct kvm_vcpu *vcpu)
pmu->available_event_types = ~entry->ebx & ((1ull << bitmap_len) - 1);
if (pmu->version == 1) {
pmu->global_ctrl = (1 << pmu->nr_arch_gp_counters) - 1;
return;
pmu->nr_arch_fixed_counters = 0;
} else {
pmu->nr_arch_fixed_counters = min((int)(entry->edx & 0x1f),
X86_PMC_MAX_FIXED);
pmu->counter_bitmask[KVM_PMC_FIXED] =
((u64)1 << ((entry->edx >> 5) & 0xff)) - 1;
}
pmu->nr_arch_fixed_counters = min((int)(entry->edx & 0x1f),
X86_PMC_MAX_FIXED);
pmu->counter_bitmask[KVM_PMC_FIXED] =
((u64)1 << ((entry->edx >> 5) & 0xff)) - 1;
pmu->global_ctrl_mask = ~(((1 << pmu->nr_arch_gp_counters) - 1)
| (((1ull << pmu->nr_arch_fixed_counters) - 1)
<< X86_PMC_IDX_FIXED));
pmu->global_ctrl = ((1 << pmu->nr_arch_gp_counters) - 1) |
(((1ull << pmu->nr_arch_fixed_counters) - 1) << X86_PMC_IDX_FIXED);
pmu->global_ctrl_mask = ~pmu->global_ctrl;
}
void kvm_pmu_init(struct kvm_vcpu *vcpu)

5
arch/x86/kvm/vmx.c
View File

@ -2217,9 +2217,12 @@ static int vmx_set_msr(struct kvm_vcpu *vcpu, u32 msr_index, u64 data)
msr = find_msr_entry(vmx, msr_index);
if (msr) {
msr->data = data;
if (msr - vmx->guest_msrs < vmx->save_nmsrs)
if (msr - vmx->guest_msrs < vmx->save_nmsrs) {
preempt_disable();
kvm_set_shared_msr(msr->index, msr->data,
msr->mask);
preempt_enable();
}
break;
}
ret = kvm_set_msr_common(vcpu, msr_index, data);

53
arch/x86/lib/insn.c
View File

@ -379,8 +379,8 @@ err_out:
return;
}
/* Decode moffset16/32/64 */
static void __get_moffset(struct insn *insn)
/* Decode moffset16/32/64. Return 0 if failed */
static int __get_moffset(struct insn *insn)
{
switch (insn->addr_bytes) {
case 2:
@ -397,15 +397,19 @@ static void __get_moffset(struct insn *insn)
insn->moffset2.value = get_next(int, insn);
insn->moffset2.nbytes = 4;
break;
default: /* opnd_bytes must be modified manually */
goto err_out;
}
insn->moffset1.got = insn->moffset2.got = 1;
return 1;
err_out:
return;
return 0;
}
/* Decode imm v32(Iz) */
static void __get_immv32(struct insn *insn)
/* Decode imm v32(Iz). Return 0 if failed */
static int __get_immv32(struct insn *insn)
{
switch (insn->opnd_bytes) {
case 2:
@ -417,14 +421,18 @@ static void __get_immv32(struct insn *insn)
insn->immediate.value = get_next(int, insn);
insn->immediate.nbytes = 4;
break;
default: /* opnd_bytes must be modified manually */
goto err_out;
}
return 1;
err_out:
return;
return 0;
}
/* Decode imm v64(Iv/Ov) */
static void __get_immv(struct insn *insn)
/* Decode imm v64(Iv/Ov), Return 0 if failed */
static int __get_immv(struct insn *insn)
{
switch (insn->opnd_bytes) {
case 2:
@ -441,15 +449,18 @@ static void __get_immv(struct insn *insn)
insn->immediate2.value = get_next(int, insn);
insn->immediate2.nbytes = 4;
break;
default: /* opnd_bytes must be modified manually */
goto err_out;
}
insn->immediate1.got = insn->immediate2.got = 1;
return 1;
err_out:
return;
return 0;
}
/* Decode ptr16:16/32(Ap) */
static void __get_immptr(struct insn *insn)
static int __get_immptr(struct insn *insn)
{
switch (insn->opnd_bytes) {
case 2:
@ -462,14 +473,17 @@ static void __get_immptr(struct insn *insn)
break;
case 8:
/* ptr16:64 is not exist (no segment) */
return;
return 0;
default: /* opnd_bytes must be modified manually */
goto err_out;
}
insn->immediate2.value = get_next(unsigned short, insn);
insn->immediate2.nbytes = 2;
insn->immediate1.got = insn->immediate2.got = 1;
return 1;
err_out:
return;
return 0;
}
/**
@ -489,7 +503,8 @@ void insn_get_immediate(struct insn *insn)
insn_get_displacement(insn);
if (inat_has_moffset(insn->attr)) {
__get_moffset(insn);
if (!__get_moffset(insn))
goto err_out;
goto done;
}
@ -517,16 +532,20 @@ void insn_get_immediate(struct insn *insn)
insn->immediate2.nbytes = 4;
break;
case INAT_IMM_PTR:
__get_immptr(insn);
if (!__get_immptr(insn))
goto err_out;
break;
case INAT_IMM_VWORD32:
__get_immv32(insn);
if (!__get_immv32(insn))
goto err_out;
break;
case INAT_IMM_VWORD:
__get_immv(insn);
if (!__get_immv(insn))
goto err_out;
break;
default:
break;
/* Here, insn must have an immediate, but failed */
goto err_out;
}
if (inat_has_second_immediate(insn->attr)) {
insn->immediate2.value = get_next(char, insn);

103
arch/x86/lib/usercopy.c
View File

@ -7,6 +7,8 @@
#include <linux/highmem.h>
#include <linux/module.h>
#include <asm/word-at-a-time.h>
/*
* best effort, GUP based copy_from_user() that is NMI-safe
*/
@ -41,3 +43,104 @@ copy_from_user_nmi(void *to, const void __user *from, unsigned long n)
return len;
}
EXPORT_SYMBOL_GPL(copy_from_user_nmi);
static inline unsigned long count_bytes(unsigned long mask)
{
mask = (mask - 1) & ~mask;
mask >>= 7;
return count_masked_bytes(mask);
}
/*
* Do a strncpy, return length of string without final '\0'.
* 'count' is the user-supplied count (return 'count' if we
* hit it), 'max' is the address space maximum (and we return
* -EFAULT if we hit it).
*/
static inline long do_strncpy_from_user(char *dst, const char __user *src, long count, unsigned long max)
{
long res = 0;
/*
* Truncate 'max' to the user-specified limit, so that
* we only have one limit we need to check in the loop
*/
if (max > count)
max = count;
while (max >= sizeof(unsigned long)) {
unsigned long c;
/* Fall back to byte-at-a-time if we get a page fault */
if (unlikely(__get_user(c,(unsigned long __user *)(src+res))))
break;
/* This can write a few bytes past the NUL character, but that's ok */
*(unsigned long *)(dst+res) = c;
c = has_zero(c);
if (c)
return res + count_bytes(c);
res += sizeof(unsigned long);
max -= sizeof(unsigned long);
}
while (max) {
char c;
if (unlikely(__get_user(c,src+res)))
return -EFAULT;
dst[res] = c;
if (!c)
return res;
res++;
max--;
}
/*
* Uhhuh. We hit 'max'. But was that the user-specified maximum
* too? If so, that's ok - we got as much as the user asked for.
*/
if (res >= count)
return res;
/*
* Nope: we hit the address space limit, and we still had more
* characters the caller would have wanted. That's an EFAULT.
*/
return -EFAULT;
}
/**
* strncpy_from_user: - Copy a NUL terminated string from userspace.
* @dst: Destination address, in kernel space. This buffer must be at
* least @count bytes long.
* @src: Source address, in user space.
* @count: Maximum number of bytes to copy, including the trailing NUL.
*
* Copies a NUL-terminated string from userspace to kernel space.
*
* On success, returns the length of the string (not including the trailing
* NUL).
*
* If access to userspace fails, returns -EFAULT (some data may have been
* copied).
*
* If @count is smaller than the length of the string, copies @count bytes
* and returns @count.
*/
long
strncpy_from_user(char *dst, const char __user *src, long count)
{
unsigned long max_addr, src_addr;
if (unlikely(count <= 0))
return 0;
max_addr = current_thread_info()->addr_limit.seg;
src_addr = (unsigned long)src;
if (likely(src_addr < max_addr)) {
unsigned long max = max_addr - src_addr;
return do_strncpy_from_user(dst, src, count, max);
}
return -EFAULT;
}
EXPORT_SYMBOL(strncpy_from_user);

87
arch/x86/lib/usercopy_32.c
View File

@ -32,93 +32,6 @@ static inline int __movsl_is_ok(unsigned long a1, unsigned long a2, unsigned lon
#define movsl_is_ok(a1, a2, n) \
__movsl_is_ok((unsigned long)(a1), (unsigned long)(a2), (n))
/*
* Copy a null terminated string from userspace.
*/
#define __do_strncpy_from_user(dst, src, count, res) \
do { \
int __d0, __d1, __d2; \
might_fault(); \
__asm__ __volatile__( \
" testl %1,%1\n" \
" jz 2f\n" \
"0: lodsb\n" \
" stosb\n" \
" testb %%al,%%al\n" \
" jz 1f\n" \
" decl %1\n" \
" jnz 0b\n" \
"1: subl %1,%0\n" \
"2:\n" \
".section .fixup,\"ax\"\n" \
"3: movl %5,%0\n" \
" jmp 2b\n" \
".previous\n" \
_ASM_EXTABLE(0b,3b) \
: "=&d"(res), "=&c"(count), "=&a" (__d0), "=&S" (__d1), \
"=&D" (__d2) \
: "i"(-EFAULT), "0"(count), "1"(count), "3"(src), "4"(dst) \
: "memory"); \
} while (0)
/**
* __strncpy_from_user: - Copy a NUL terminated string from userspace, with less checking.
* @dst: Destination address, in kernel space. This buffer must be at
* least @count bytes long.
* @src: Source address, in user space.
* @count: Maximum number of bytes to copy, including the trailing NUL.
*
* Copies a NUL-terminated string from userspace to kernel space.
* Caller must check the specified block with access_ok() before calling
* this function.
*
* On success, returns the length of the string (not including the trailing
* NUL).
*
* If access to userspace fails, returns -EFAULT (some data may have been
* copied).
*
* If @count is smaller than the length of the string, copies @count bytes
* and returns @count.
*/
long
__strncpy_from_user(char *dst, const char __user *src, long count)
{
long res;
__do_strncpy_from_user(dst, src, count, res);
return res;
}
EXPORT_SYMBOL(__strncpy_from_user);
/**
* strncpy_from_user: - Copy a NUL terminated string from userspace.
* @dst: Destination address, in kernel space. This buffer must be at
* least @count bytes long.
* @src: Source address, in user space.
* @count: Maximum number of bytes to copy, including the trailing NUL.
*
* Copies a NUL-terminated string from userspace to kernel space.
*
* On success, returns the length of the string (not including the trailing
* NUL).
*
* If access to userspace fails, returns -EFAULT (some data may have been
* copied).
*
* If @count is smaller than the length of the string, copies @count bytes
* and returns @count.
*/
long
strncpy_from_user(char *dst, const char __user *src, long count)
{
long res = -EFAULT;
if (access_ok(VERIFY_READ, src, 1))
__do_strncpy_from_user(dst, src, count, res);
return res;
}
EXPORT_SYMBOL(strncpy_from_user);
/*
* Zero Userspace
*/

49
arch/x86/lib/usercopy_64.c
View File

@ -8,55 +8,6 @@
#include <linux/module.h>
#include <asm/uaccess.h>
/*
* Copy a null terminated string from userspace.
*/
#define __do_strncpy_from_user(dst,src,count,res) \
do { \
long __d0, __d1, __d2; \
might_fault(); \
__asm__ __volatile__( \
" testq %1,%1\n" \
" jz 2f\n" \
"0: lodsb\n" \
" stosb\n" \
" testb %%al,%%al\n" \
" jz 1f\n" \
" decq %1\n" \
" jnz 0b\n" \
"1: subq %1,%0\n" \
"2:\n" \
".section .fixup,\"ax\"\n" \
"3: movq %5,%0\n" \
" jmp 2b\n" \
".previous\n" \
_ASM_EXTABLE(0b,3b) \
: "=&r"(res), "=&c"(count), "=&a" (__d0), "=&S" (__d1), \
"=&D" (__d2) \
: "i"(-EFAULT), "0"(count), "1"(count), "3"(src), "4"(dst) \
: "memory"); \
} while (0)
long
__strncpy_from_user(char *dst, const char __user *src, long count)
{
long res;
__do_strncpy_from_user(dst, src, count, res);
return res;
}
EXPORT_SYMBOL(__strncpy_from_user);
long
strncpy_from_user(char *dst, const char __user *src, long count)
{
long res = -EFAULT;
if (access_ok(VERIFY_READ, src, 1))
return __strncpy_from_user(dst, src, count);
return res;
}
EXPORT_SYMBOL(strncpy_from_user);
/*
* Zero Userspace
*/

75
arch/x86/um/asm/barrier.h Normal file
View File

@ -0,0 +1,75 @@
#ifndef _ASM_UM_BARRIER_H_
#define _ASM_UM_BARRIER_H_
#include <asm/asm.h>
#include <asm/segment.h>
#include <asm/cpufeature.h>
#include <asm/cmpxchg.h>
#include <asm/nops.h>
#include <linux/kernel.h>
#include <linux/irqflags.h>
/*
* Force strict CPU ordering.
* And yes, this is required on UP too when we're talking
* to devices.
*/
#ifdef CONFIG_X86_32
#define mb() alternative("lock; addl $0,0(%%esp)", "mfence", X86_FEATURE_XMM2)
#define rmb() alternative("lock; addl $0,0(%%esp)", "lfence", X86_FEATURE_XMM2)
#define wmb() alternative("lock; addl $0,0(%%esp)", "sfence", X86_FEATURE_XMM)
#else /* CONFIG_X86_32 */
#define mb() asm volatile("mfence" : : : "memory")
#define rmb() asm volatile("lfence" : : : "memory")
#define wmb() asm volatile("sfence" : : : "memory")
#endif /* CONFIG_X86_32 */
#define read_barrier_depends() do { } while (0)
#ifdef CONFIG_SMP
#define smp_mb() mb()
#ifdef CONFIG_X86_PPRO_FENCE
#define smp_rmb() rmb()
#else /* CONFIG_X86_PPRO_FENCE */
#define smp_rmb() barrier()
#endif /* CONFIG_X86_PPRO_FENCE */
#ifdef CONFIG_X86_OOSTORE
#define smp_wmb() wmb()
#else /* CONFIG_X86_OOSTORE */
#define smp_wmb() barrier()
#endif /* CONFIG_X86_OOSTORE */
#define smp_read_barrier_depends() read_barrier_depends()
#define set_mb(var, value) do { (void)xchg(&var, value); } while (0)
#else /* CONFIG_SMP */
#define smp_mb() barrier()
#define smp_rmb() barrier()
#define smp_wmb() barrier()
#define smp_read_barrier_depends() do { } while (0)
#define set_mb(var, value) do { var = value; barrier(); } while (0)
#endif /* CONFIG_SMP */
/*
* Stop RDTSC speculation. This is needed when you need to use RDTSC
* (or get_cycles or vread that possibly accesses the TSC) in a defined
* code region.
*
* (Could use an alternative three way for this if there was one.)
*/
static inline void rdtsc_barrier(void)
{
alternative(ASM_NOP3, "mfence", X86_FEATURE_MFENCE_RDTSC);
alternative(ASM_NOP3, "lfence", X86_FEATURE_LFENCE_RDTSC);
}
#endif

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