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	net/batman-adv/soft-interface.c
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davem330 committed Oct 7, 2011
2 parents 8083f0f + 3ee72ca commit 88c5100
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14 changes: 4 additions & 10 deletions Documentation/hwmon/coretemp
Original file line number Diff line number Diff line change
Expand Up @@ -35,23 +35,17 @@ the Out-Of-Spec bit. Following table summarizes the exported sysfs files:
All Sysfs entries are named with their core_id (represented here by 'X').
tempX_input - Core temperature (in millidegrees Celsius).
tempX_max - All cooling devices should be turned on (on Core2).
Initialized with IA32_THERM_INTERRUPT. When the CPU
temperature reaches this temperature, an interrupt is
generated and tempX_max_alarm is set.
tempX_max_hyst - If the CPU temperature falls below than temperature,
an interrupt is generated and tempX_max_alarm is reset.
tempX_max_alarm - Set if the temperature reaches or exceeds tempX_max.
Reset if the temperature drops to or below tempX_max_hyst.
tempX_crit - Maximum junction temperature (in millidegrees Celsius).
tempX_crit_alarm - Set when Out-of-spec bit is set, never clears.
Correct CPU operation is no longer guaranteed.
tempX_label - Contains string "Core X", where X is processor
number. For Package temp, this will be "Physical id Y",
where Y is the package number.

The TjMax temperature is set to 85 degrees C if undocumented model specific
register (UMSR) 0xee has bit 30 set. If not the TjMax is 100 degrees C as
(sometimes) documented in processor datasheet.
On CPU models which support it, TjMax is read from a model-specific register.
On other models, it is set to an arbitrary value based on weak heuristics.
If these heuristics don't work for you, you can pass the correct TjMax value
as a module parameter (tjmax).

Appendix A. Known TjMax lists (TBD):
Some information comes from ark.intel.com
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4 changes: 2 additions & 2 deletions Documentation/networking/ip-sysctl.txt
Original file line number Diff line number Diff line change
Expand Up @@ -1042,7 +1042,7 @@ conf/interface/*:
The functional behaviour for certain settings is different
depending on whether local forwarding is enabled or not.

accept_ra - BOOLEAN
accept_ra - INTEGER
Accept Router Advertisements; autoconfigure using them.

It also determines whether or not to transmit Router
Expand Down Expand Up @@ -1111,7 +1111,7 @@ dad_transmits - INTEGER
The amount of Duplicate Address Detection probes to send.
Default: 1

forwarding - BOOLEAN
forwarding - INTEGER
Configure interface-specific Host/Router behaviour.

Note: It is recommended to have the same setting on all
Expand Down
12 changes: 6 additions & 6 deletions Documentation/networking/scaling.txt
Original file line number Diff line number Diff line change
Expand Up @@ -27,7 +27,7 @@ applying a filter to each packet that assigns it to one of a small number
of logical flows. Packets for each flow are steered to a separate receive
queue, which in turn can be processed by separate CPUs. This mechanism is
generally known as “Receive-side Scaling” (RSS). The goal of RSS and
the other scaling techniques to increase performance uniformly.
the other scaling techniques is to increase performance uniformly.
Multi-queue distribution can also be used for traffic prioritization, but
that is not the focus of these techniques.

Expand Down Expand Up @@ -186,10 +186,10 @@ are steered using plain RPS. Multiple table entries may point to the
same CPU. Indeed, with many flows and few CPUs, it is very likely that
a single application thread handles flows with many different flow hashes.

rps_sock_table is a global flow table that contains the *desired* CPU for
flows: the CPU that is currently processing the flow in userspace. Each
table value is a CPU index that is updated during calls to recvmsg and
sendmsg (specifically, inet_recvmsg(), inet_sendmsg(), inet_sendpage()
rps_sock_flow_table is a global flow table that contains the *desired* CPU
for flows: the CPU that is currently processing the flow in userspace.
Each table value is a CPU index that is updated during calls to recvmsg
and sendmsg (specifically, inet_recvmsg(), inet_sendmsg(), inet_sendpage()
and tcp_splice_read()).

When the scheduler moves a thread to a new CPU while it has outstanding
Expand Down Expand Up @@ -243,7 +243,7 @@ configured. The number of entries in the global flow table is set through:

The number of entries in the per-queue flow table are set through:

/sys/class/net/<dev>/queues/tx-<n>/rps_flow_cnt
/sys/class/net/<dev>/queues/rx-<n>/rps_flow_cnt

== Suggested Configuration

Expand Down
7 changes: 4 additions & 3 deletions Documentation/vm/transhuge.txt
Original file line number Diff line number Diff line change
Expand Up @@ -123,10 +123,11 @@ be automatically shutdown if it's set to "never".
khugepaged runs usually at low frequency so while one may not want to
invoke defrag algorithms synchronously during the page faults, it
should be worth invoking defrag at least in khugepaged. However it's
also possible to disable defrag in khugepaged:
also possible to disable defrag in khugepaged by writing 0 or enable
defrag in khugepaged by writing 1:

echo yes >/sys/kernel/mm/transparent_hugepage/khugepaged/defrag
echo no >/sys/kernel/mm/transparent_hugepage/khugepaged/defrag
echo 0 >/sys/kernel/mm/transparent_hugepage/khugepaged/defrag
echo 1 >/sys/kernel/mm/transparent_hugepage/khugepaged/defrag

You can also control how many pages khugepaged should scan at each
pass:
Expand Down
1 change: 0 additions & 1 deletion MAINTAINERS
Original file line number Diff line number Diff line change
Expand Up @@ -6382,7 +6382,6 @@ S: Supported
F: arch/arm/mach-tegra

TEHUTI ETHERNET DRIVER
M: Alexander Indenbaum <baum@tehutinetworks.net>
M: Andy Gospodarek <andy@greyhouse.net>
L: netdev@vger.kernel.org
S: Supported
Expand Down
2 changes: 1 addition & 1 deletion Makefile
Original file line number Diff line number Diff line change
@@ -1,7 +1,7 @@
VERSION = 3
PATCHLEVEL = 1
SUBLEVEL = 0
EXTRAVERSION = -rc7
EXTRAVERSION = -rc9
NAME = "Divemaster Edition"

# *DOCUMENTATION*
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14 changes: 14 additions & 0 deletions arch/arm/Kconfig
Original file line number Diff line number Diff line change
Expand Up @@ -1283,6 +1283,20 @@ config ARM_ERRATA_364296
processor into full low interrupt latency mode. ARM11MPCore
is not affected.

config ARM_ERRATA_764369
bool "ARM errata: Data cache line maintenance operation by MVA may not succeed"
depends on CPU_V7 && SMP
help
This option enables the workaround for erratum 764369
affecting Cortex-A9 MPCore with two or more processors (all
current revisions). Under certain timing circumstances, a data
cache line maintenance operation by MVA targeting an Inner
Shareable memory region may fail to proceed up to either the
Point of Coherency or to the Point of Unification of the
system. This workaround adds a DSB instruction before the
relevant cache maintenance functions and sets a specific bit
in the diagnostic control register of the SCU.

endmenu

source "arch/arm/common/Kconfig"
Expand Down
34 changes: 17 additions & 17 deletions arch/arm/include/asm/futex.h
Original file line number Diff line number Diff line change
Expand Up @@ -25,17 +25,17 @@

#ifdef CONFIG_SMP

#define __futex_atomic_op(insn, ret, oldval, uaddr, oparg) \
#define __futex_atomic_op(insn, ret, oldval, tmp, uaddr, oparg) \
smp_mb(); \
__asm__ __volatile__( \
"1: ldrex %1, [%2]\n" \
"1: ldrex %1, [%3]\n" \
" " insn "\n" \
"2: strex %1, %0, [%2]\n" \
" teq %1, #0\n" \
"2: strex %2, %0, [%3]\n" \
" teq %2, #0\n" \
" bne 1b\n" \
" mov %0, #0\n" \
__futex_atomic_ex_table("%4") \
: "=&r" (ret), "=&r" (oldval) \
__futex_atomic_ex_table("%5") \
: "=&r" (ret), "=&r" (oldval), "=&r" (tmp) \
: "r" (uaddr), "r" (oparg), "Ir" (-EFAULT) \
: "cc", "memory")

Expand Down Expand Up @@ -73,14 +73,14 @@ futex_atomic_cmpxchg_inatomic(u32 *uval, u32 __user *uaddr,
#include <linux/preempt.h>
#include <asm/domain.h>

#define __futex_atomic_op(insn, ret, oldval, uaddr, oparg) \
#define __futex_atomic_op(insn, ret, oldval, tmp, uaddr, oparg) \
__asm__ __volatile__( \
"1: " T(ldr) " %1, [%2]\n" \
"1: " T(ldr) " %1, [%3]\n" \
" " insn "\n" \
"2: " T(str) " %0, [%2]\n" \
"2: " T(str) " %0, [%3]\n" \
" mov %0, #0\n" \
__futex_atomic_ex_table("%4") \
: "=&r" (ret), "=&r" (oldval) \
__futex_atomic_ex_table("%5") \
: "=&r" (ret), "=&r" (oldval), "=&r" (tmp) \
: "r" (uaddr), "r" (oparg), "Ir" (-EFAULT) \
: "cc", "memory")

Expand Down Expand Up @@ -117,7 +117,7 @@ futex_atomic_op_inuser (int encoded_op, u32 __user *uaddr)
int cmp = (encoded_op >> 24) & 15;
int oparg = (encoded_op << 8) >> 20;
int cmparg = (encoded_op << 20) >> 20;
int oldval = 0, ret;
int oldval = 0, ret, tmp;

if (encoded_op & (FUTEX_OP_OPARG_SHIFT << 28))
oparg = 1 << oparg;
Expand All @@ -129,19 +129,19 @@ futex_atomic_op_inuser (int encoded_op, u32 __user *uaddr)

switch (op) {
case FUTEX_OP_SET:
__futex_atomic_op("mov %0, %3", ret, oldval, uaddr, oparg);
__futex_atomic_op("mov %0, %4", ret, oldval, tmp, uaddr, oparg);
break;
case FUTEX_OP_ADD:
__futex_atomic_op("add %0, %1, %3", ret, oldval, uaddr, oparg);
__futex_atomic_op("add %0, %1, %4", ret, oldval, tmp, uaddr, oparg);
break;
case FUTEX_OP_OR:
__futex_atomic_op("orr %0, %1, %3", ret, oldval, uaddr, oparg);
__futex_atomic_op("orr %0, %1, %4", ret, oldval, tmp, uaddr, oparg);
break;
case FUTEX_OP_ANDN:
__futex_atomic_op("and %0, %1, %3", ret, oldval, uaddr, ~oparg);
__futex_atomic_op("and %0, %1, %4", ret, oldval, tmp, uaddr, ~oparg);
break;
case FUTEX_OP_XOR:
__futex_atomic_op("eor %0, %1, %3", ret, oldval, uaddr, oparg);
__futex_atomic_op("eor %0, %1, %4", ret, oldval, tmp, uaddr, oparg);
break;
default:
ret = -ENOSYS;
Expand Down
4 changes: 2 additions & 2 deletions arch/arm/include/asm/unistd.h
Original file line number Diff line number Diff line change
Expand Up @@ -478,8 +478,8 @@
/*
* Unimplemented (or alternatively implemented) syscalls
*/
#define __IGNORE_fadvise64_64 1
#define __IGNORE_migrate_pages 1
#define __IGNORE_fadvise64_64
#define __IGNORE_migrate_pages

#endif /* __KERNEL__ */
#endif /* __ASM_ARM_UNISTD_H */
10 changes: 10 additions & 0 deletions arch/arm/kernel/smp_scu.c
Original file line number Diff line number Diff line change
Expand Up @@ -13,6 +13,7 @@

#include <asm/smp_scu.h>
#include <asm/cacheflush.h>
#include <asm/cputype.h>

#define SCU_CTRL 0x00
#define SCU_CONFIG 0x04
Expand All @@ -37,6 +38,15 @@ void __init scu_enable(void __iomem *scu_base)
{
u32 scu_ctrl;

#ifdef CONFIG_ARM_ERRATA_764369
/* Cortex-A9 only */
if ((read_cpuid(CPUID_ID) & 0xff0ffff0) == 0x410fc090) {
scu_ctrl = __raw_readl(scu_base + 0x30);
if (!(scu_ctrl & 1))
__raw_writel(scu_ctrl | 0x1, scu_base + 0x30);
}
#endif

scu_ctrl = __raw_readl(scu_base + SCU_CTRL);
/* already enabled? */
if (scu_ctrl & 1)
Expand Down
15 changes: 12 additions & 3 deletions arch/arm/kernel/vmlinux.lds.S
Original file line number Diff line number Diff line change
Expand Up @@ -23,8 +23,10 @@

#if defined(CONFIG_SMP_ON_UP) && !defined(CONFIG_DEBUG_SPINLOCK)
#define ARM_EXIT_KEEP(x) x
#define ARM_EXIT_DISCARD(x)
#else
#define ARM_EXIT_KEEP(x)
#define ARM_EXIT_DISCARD(x) x
#endif

OUTPUT_ARCH(arm)
Expand All @@ -39,6 +41,11 @@ jiffies = jiffies_64 + 4;
SECTIONS
{
/*
* XXX: The linker does not define how output sections are
* assigned to input sections when there are multiple statements
* matching the same input section name. There is no documented
* order of matching.
*
* unwind exit sections must be discarded before the rest of the
* unwind sections get included.
*/
Expand All @@ -47,6 +54,9 @@ SECTIONS
*(.ARM.extab.exit.text)
ARM_CPU_DISCARD(*(.ARM.exidx.cpuexit.text))
ARM_CPU_DISCARD(*(.ARM.extab.cpuexit.text))
ARM_EXIT_DISCARD(EXIT_TEXT)
ARM_EXIT_DISCARD(EXIT_DATA)
EXIT_CALL
#ifndef CONFIG_HOTPLUG
*(.ARM.exidx.devexit.text)
*(.ARM.extab.devexit.text)
Expand All @@ -58,6 +68,8 @@ SECTIONS
#ifndef CONFIG_SMP_ON_UP
*(.alt.smp.init)
#endif
*(.discard)
*(.discard.*)
}

#ifdef CONFIG_XIP_KERNEL
Expand Down Expand Up @@ -279,9 +291,6 @@ SECTIONS

STABS_DEBUG
.comment 0 : { *(.comment) }

/* Default discards */
DISCARDS
}

/*
Expand Down
6 changes: 2 additions & 4 deletions arch/arm/mach-exynos4/clock.c
Original file line number Diff line number Diff line change
Expand Up @@ -899,8 +899,7 @@ static struct clksrc_clk clksrcs[] = {
.reg_div = { .reg = S5P_CLKDIV_CAM, .shift = 28, .size = 4 },
}, {
.clk = {
.name = "sclk_cam",
.devname = "exynos4-fimc.0",
.name = "sclk_cam0",
.enable = exynos4_clksrc_mask_cam_ctrl,
.ctrlbit = (1 << 16),
},
Expand All @@ -909,8 +908,7 @@ static struct clksrc_clk clksrcs[] = {
.reg_div = { .reg = S5P_CLKDIV_CAM, .shift = 16, .size = 4 },
}, {
.clk = {
.name = "sclk_cam",
.devname = "exynos4-fimc.1",
.name = "sclk_cam1",
.enable = exynos4_clksrc_mask_cam_ctrl,
.ctrlbit = (1 << 20),
},
Expand Down
2 changes: 1 addition & 1 deletion arch/arm/mach-s3c2443/clock.c
Original file line number Diff line number Diff line change
Expand Up @@ -128,7 +128,7 @@ static int s3c2443_armclk_setrate(struct clk *clk, unsigned long rate)
unsigned long clkcon0;

clkcon0 = __raw_readl(S3C2443_CLKDIV0);
clkcon0 &= S3C2443_CLKDIV0_ARMDIV_MASK;
clkcon0 &= ~S3C2443_CLKDIV0_ARMDIV_MASK;
clkcon0 |= val << S3C2443_CLKDIV0_ARMDIV_SHIFT;
__raw_writel(clkcon0, S3C2443_CLKDIV0);
}
Expand Down
6 changes: 2 additions & 4 deletions arch/arm/mach-s5pv210/clock.c
Original file line number Diff line number Diff line change
Expand Up @@ -815,8 +815,7 @@ static struct clksrc_clk clksrcs[] = {
.reg_div = { .reg = S5P_CLK_DIV3, .shift = 20, .size = 4 },
}, {
.clk = {
.name = "sclk_cam",
.devname = "s5pv210-fimc.0",
.name = "sclk_cam0",
.enable = s5pv210_clk_mask0_ctrl,
.ctrlbit = (1 << 3),
},
Expand All @@ -825,8 +824,7 @@ static struct clksrc_clk clksrcs[] = {
.reg_div = { .reg = S5P_CLK_DIV1, .shift = 12, .size = 4 },
}, {
.clk = {
.name = "sclk_cam",
.devname = "s5pv210-fimc.1",
.name = "sclk_cam1",
.enable = s5pv210_clk_mask0_ctrl,
.ctrlbit = (1 << 4),
},
Expand Down
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