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Merge tag 'lsk-v3.10-15.05-android' into develop-3.10

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This commit is contained in:
Huang, Tao 2015-06-02 11:25:34 +08:00
commit 3ca9efa2f8
429 changed files with 7333 additions and 3864 deletions
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62
Documentation/ABI/testing/sysfs-block-zram
View File

@ -42,15 +42,48 @@ Description:
The invalid_io file is read-only and specifies the number of
non-page-size-aligned I/O requests issued to this device.
What: /sys/block/zram<id>/failed_reads
Date: February 2014
Contact: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
Description:
The failed_reads file is read-only and specifies the number of
failed reads happened on this device.
What: /sys/block/zram<id>/failed_writes
Date: February 2014
Contact: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
Description:
The failed_writes file is read-only and specifies the number of
failed writes happened on this device.
What: /sys/block/zram<id>/max_comp_streams
Date: February 2014
Contact: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
Description:
The max_comp_streams file is read-write and specifies the
number of backend's zcomp_strm compression streams (number of
concurrent compress operations).
What: /sys/block/zram<id>/comp_algorithm
Date: February 2014
Contact: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
Description:
The comp_algorithm file is read-write and lets to show
available and selected compression algorithms, change
compression algorithm selection.
What: /sys/block/zram<id>/notify_free
Date: August 2010
Contact: Nitin Gupta <ngupta@vflare.org>
Description:
The notify_free file is read-only and specifies the number of
swap slot free notifications received by this device. These
notifications are send to a swap block device when a swap slot
is freed. This statistic is applicable only when this disk is
being used as a swap disk.
The notify_free file is read-only. Depending on device usage
scenario it may account a) the number of pages freed because
of swap slot free notifications or b) the number of pages freed
because of REQ_DISCARD requests sent by bio. The former ones
are sent to a swap block device when a swap slot is freed, which
implies that this disk is being used as a swap disk. The latter
ones are sent by filesystem mounted with discard option,
whenever some data blocks are getting discarded.
What: /sys/block/zram<id>/discard
Date: August 2010
@ -97,3 +130,22 @@ Description:
efficiency can be calculated using compr_data_size and this
statistic.
Unit: bytes
What: /sys/block/zram<id>/mem_used_max
Date: August 2014
Contact: Minchan Kim <minchan@kernel.org>
Description:
The mem_used_max file is read/write and specifies the amount
of maximum memory zram have consumed to store compressed data.
For resetting the value, you should write "0". Otherwise,
you could see -EINVAL.
Unit: bytes
What: /sys/block/zram<id>/mem_limit
Date: August 2014
Contact: Minchan Kim <minchan@kernel.org>
Description:
The mem_limit file is read/write and specifies the maximum
amount of memory ZRAM can use to store the compressed data. The
limit could be changed in run time and "0" means disable the
limit. No limit is the initial state. Unit: bytes

129
Documentation/blockdev/zram.txt Normal file
View File

@ -0,0 +1,129 @@
zram: Compressed RAM based block devices
----------------------------------------
* Introduction
The zram module creates RAM based block devices named /dev/zram<id>
(<id> = 0, 1, ...). Pages written to these disks are compressed and stored
in memory itself. These disks allow very fast I/O and compression provides
good amounts of memory savings. Some of the usecases include /tmp storage,
use as swap disks, various caches under /var and maybe many more :)
Statistics for individual zram devices are exported through sysfs nodes at
/sys/block/zram<id>/
* Usage
Following shows a typical sequence of steps for using zram.
1) Load Module:
modprobe zram num_devices=4
This creates 4 devices: /dev/zram{0,1,2,3}
(num_devices parameter is optional. Default: 1)
2) Set max number of compression streams
Compression backend may use up to max_comp_streams compression streams,
thus allowing up to max_comp_streams concurrent compression operations.
By default, compression backend uses single compression stream.
Examples:
#show max compression streams number
cat /sys/block/zram0/max_comp_streams
#set max compression streams number to 3
echo 3 > /sys/block/zram0/max_comp_streams
Note:
In order to enable compression backend's multi stream support max_comp_streams
must be initially set to desired concurrency level before ZRAM device
initialisation. Once the device initialised as a single stream compression
backend (max_comp_streams equals to 1), you will see error if you try to change
the value of max_comp_streams because single stream compression backend
implemented as a special case by lock overhead issue and does not support
dynamic max_comp_streams. Only multi stream backend supports dynamic
max_comp_streams adjustment.
3) Select compression algorithm
Using comp_algorithm device attribute one can see available and
currently selected (shown in square brackets) compression algortithms,
change selected compression algorithm (once the device is initialised
there is no way to change compression algorithm).
Examples:
#show supported compression algorithms
cat /sys/block/zram0/comp_algorithm
lzo [lz4]
#select lzo compression algorithm
echo lzo > /sys/block/zram0/comp_algorithm
4) Set Disksize
Set disk size by writing the value to sysfs node 'disksize'.
The value can be either in bytes or you can use mem suffixes.
Examples:
# Initialize /dev/zram0 with 50MB disksize
echo $((50*1024*1024)) > /sys/block/zram0/disksize
# Using mem suffixes
echo 256K > /sys/block/zram0/disksize
echo 512M > /sys/block/zram0/disksize
echo 1G > /sys/block/zram0/disksize
Note:
There is little point creating a zram of greater than twice the size of memory
since we expect a 2:1 compression ratio. Note that zram uses about 0.1% of the
size of the disk when not in use so a huge zram is wasteful.
5) Set memory limit: Optional
Set memory limit by writing the value to sysfs node 'mem_limit'.
The value can be either in bytes or you can use mem suffixes.
In addition, you could change the value in runtime.
Examples:
# limit /dev/zram0 with 50MB memory
echo $((50*1024*1024)) > /sys/block/zram0/mem_limit
# Using mem suffixes
echo 256K > /sys/block/zram0/mem_limit
echo 512M > /sys/block/zram0/mem_limit
echo 1G > /sys/block/zram0/mem_limit
# To disable memory limit
echo 0 > /sys/block/zram0/mem_limit
6) Activate:
mkswap /dev/zram0
swapon /dev/zram0
mkfs.ext4 /dev/zram1
mount /dev/zram1 /tmp
7) Stats:
Per-device statistics are exported as various nodes under
/sys/block/zram<id>/
disksize
num_reads
num_writes
invalid_io
notify_free
discard
zero_pages
orig_data_size
compr_data_size
mem_used_total
mem_used_max
8) Deactivate:
swapoff /dev/zram0
umount /dev/zram1
9) Reset:
Write any positive value to 'reset' sysfs node
echo 1 > /sys/block/zram0/reset
echo 1 > /sys/block/zram1/reset
This frees all the memory allocated for the given device and
resets the disksize to zero. You must set the disksize again
before reusing the device.
Nitin Gupta
ngupta@vflare.org

2
Documentation/devicetree/bindings/dma/fsl-mxs-dma.txt
View File

@ -38,7 +38,7 @@ dma_apbx: dma-apbx@80024000 {
80 81 68 69
70 71 72 73
74 75 76 77>;
interrupt-names = "auart4-rx", "aurat4-tx", "spdif-tx", "empty",
interrupt-names = "auart4-rx", "auart4-tx", "spdif-tx", "empty",
"saif0", "saif1", "i2c0", "i2c1",
"auart0-rx", "auart0-tx", "auart1-rx", "auart1-tx",
"auart2-rx", "auart2-tx", "auart3-rx", "auart3-tx";

2
Makefile
View File

@ -1,6 +1,6 @@
VERSION = 3
PATCHLEVEL = 10
SUBLEVEL = 74
SUBLEVEL = 79
EXTRAVERSION =
NAME = TOSSUG Baby Fish

10
android/configs/android-base.cfg
View File

@ -9,6 +9,7 @@ CONFIG_ANDROID_BINDER_IPC=y
CONFIG_ANDROID_LOW_MEMORY_KILLER=y
CONFIG_ARMV7_COMPAT=y
CONFIG_ASHMEM=y
CONFIG_AUDIT=y
CONFIG_BLK_DEV_DM=y
CONFIG_BLK_DEV_INITRD=y
CONFIG_CGROUPS=y
@ -51,6 +52,7 @@ CONFIG_IP_NF_MATCH_AH=y
CONFIG_IP_NF_MATCH_ECN=y
CONFIG_IP_NF_MATCH_TTL=y
CONFIG_IP_NF_RAW=y
CONFIG_IP_NF_SECURITY=y
CONFIG_IP_NF_TARGET_MASQUERADE=y
CONFIG_IP_NF_TARGET_NETMAP=y
CONFIG_IP_NF_TARGET_REDIRECT=y
@ -85,10 +87,12 @@ CONFIG_NETFILTER_XT_MATCH_TIME=y
CONFIG_NETFILTER_XT_MATCH_U32=y
CONFIG_NETFILTER_XT_TARGET_CLASSIFY=y
CONFIG_NETFILTER_XT_TARGET_CONNMARK=y
CONFIG_NETFILTER_XT_TARGET_CONNSECMARK=y
CONFIG_NETFILTER_XT_TARGET_IDLETIMER=y
CONFIG_NETFILTER_XT_TARGET_MARK=y
CONFIG_NETFILTER_XT_TARGET_NFLOG=y
CONFIG_NETFILTER_XT_TARGET_NFQUEUE=y
CONFIG_NETFILTER_XT_TARGET_SECMARK=y
CONFIG_NETFILTER_XT_TARGET_TCPMSS=y
CONFIG_NETFILTER_XT_TARGET_TPROXY=y
CONFIG_NETFILTER_XT_TARGET_TRACE=y
@ -110,6 +114,7 @@ CONFIG_NF_CONNTRACK_IRC=y
CONFIG_NF_CONNTRACK_NETBIOS_NS=y
CONFIG_NF_CONNTRACK_PPTP=y
CONFIG_NF_CONNTRACK_SANE=y
CONFIG_NF_CONNTRACK_SECMARK=y
CONFIG_NF_CONNTRACK_TFTP=y
CONFIG_NF_CT_NETLINK=y
CONFIG_NF_CT_PROTO_DCCP=y
@ -130,6 +135,11 @@ CONFIG_PREEMPT=y
CONFIG_RESOURCE_COUNTERS=y
CONFIG_RTC_CLASS=y
CONFIG_RT_GROUP_SCHED=y
CONFIG_SECURITY=y
CONFIG_SECURITY_NETWORK=y
CONFIG_SECURITY_SELINUX=y
CONFIG_SND=y
CONFIG_SOUND=y
CONFIG_STAGING=y
CONFIG_SWITCH=y
CONFIG_SYNC=y

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

@ -156,6 +156,8 @@ do_page_fault(unsigned long address, unsigned long mmcsr,
if (unlikely(fault & VM_FAULT_ERROR)) {
if (fault & VM_FAULT_OOM)
goto out_of_memory;
else if (fault & VM_FAULT_SIGSEGV)
goto bad_area;
else if (fault & VM_FAULT_SIGBUS)
goto do_sigbus;
BUG();

20
arch/arc/kernel/signal.c
View File

@ -131,6 +131,15 @@ SYSCALL_DEFINE0(rt_sigreturn)
/* Don't restart from sigreturn */
syscall_wont_restart(regs);
/*
* Ensure that sigreturn always returns to user mode (in case the
* regs saved on user stack got fudged between save and sigreturn)
* Otherwise it is easy to panic the kernel with a custom
* signal handler and/or restorer which clobberes the status32/ret
* to return to a bogus location in kernel mode.
*/
regs->status32 |= STATUS_U_MASK;
return regs->r0;
badframe:
@ -234,8 +243,11 @@ setup_rt_frame(int signo, struct k_sigaction *ka, siginfo_t *info,
/*
* handler returns using sigreturn stub provided already by userpsace
* If not, nuke the process right away
*/
BUG_ON(!(ka->sa.sa_flags & SA_RESTORER));
if(!(ka->sa.sa_flags & SA_RESTORER))
return 1;
regs->blink = (unsigned long)ka->sa.sa_restorer;
/* User Stack for signal handler will be above the frame just carved */
@ -302,12 +314,12 @@ handle_signal(unsigned long sig, struct k_sigaction *ka, siginfo_t *info,
struct pt_regs *regs)
{
sigset_t *oldset = sigmask_to_save();
int ret;
int failed;
/* Set up the stack frame */
ret = setup_rt_frame(sig, ka, info, oldset, regs);
failed = setup_rt_frame(sig, ka, info, oldset, regs);
if (ret)
if (failed)
force_sigsegv(sig, current);
else
signal_delivered(sig, info, ka, regs, 0);

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

@ -160,6 +160,8 @@ void do_page_fault(struct pt_regs *regs, int write, unsigned long address,
/* TBD: switch to pagefault_out_of_memory() */
if (fault & VM_FAULT_OOM)
goto out_of_memory;
else if (fault & VM_FAULT_SIGSEGV)
goto bad_area;
else if (fault & VM_FAULT_SIGBUS)
goto do_sigbus;

4
arch/arm/boot/dts/armada-xp-openblocks-ax3-4.dts
View File

@ -32,6 +32,10 @@ soc {
0xf0000000 0 0xf0000000 0x8000000 /* Device Bus, NOR 128MiB */>;
internal-regs {
rtc@10300 {
/* No crystal connected to the internal RTC */
status = "disabled";
};
serial@12000 {
clock-frequency = <250000000>;
status = "okay";

4
arch/arm/boot/dts/dove.dtsi
View File

@ -75,7 +75,7 @@ uart1: serial@12100 {
uart2: serial@12200 {
compatible = "ns16550a";
reg = <0x12000 0x100>;
reg = <0x12200 0x100>;
reg-shift = <2>;
interrupts = <9>;
clocks = <&core_clk 0>;
@ -84,7 +84,7 @@ uart2: serial@12200 {
uart3: serial@12300 {
compatible = "ns16550a";
reg = <0x12100 0x100>;
reg = <0x12300 0x100>;
reg-shift = <2>;
interrupts = <10>;
clocks = <&core_clk 0>;

5
arch/arm/boot/dts/exynos5250.dtsi
View File

@ -89,6 +89,11 @@ timer {
<1 14 0xf08>,
<1 11 0xf08>,
<1 10 0xf08>;
/* Unfortunately we need this since some versions of U-Boot
* on Exynos don't set the CNTFRQ register, so we need the
* value from DT.
*/
clock-frequency = <24000000>;
};
combiner:interrupt-controller@10440000 {

1
arch/arm/boot/dts/imx23-olinuxino.dts
View File

@ -89,6 +89,7 @@ usbphy0: usbphy@8007c000 {
ahb@80080000 {
usb0: usb@80080000 {
dr_mode = "host";
vbus-supply = <&reg_usb0_vbus>;
status = "okay";
};

1
arch/arm/boot/dts/imx25.dtsi
View File

@ -393,6 +393,7 @@ slcdc@53fc0000 {
pwm4: pwm@53fc8000 {
compatible = "fsl,imx25-pwm", "fsl,imx27-pwm";
#pwm-cells = <2>;
reg = <0x53fc8000 0x4000>;
clocks = <&clks 108>, <&clks 52>;
clock-names = "ipg", "per";

2
arch/arm/boot/dts/imx28.dtsi
View File

@ -691,7 +691,7 @@ dma_apbx: dma-apbx@80024000 {
80 81 68 69
70 71 72 73
74 75 76 77>;
interrupt-names = "auart4-rx", "aurat4-tx", "spdif-tx", "empty",
interrupt-names = "auart4-rx", "auart4-tx", "spdif-tx", "empty",
"saif0", "saif1", "i2c0", "i2c1",
"auart0-rx", "auart0-tx", "auart1-rx", "auart1-tx",
"auart2-rx", "auart2-tx", "auart3-rx", "auart3-tx";

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

@ -115,7 +115,7 @@ int dump_task_regs(struct task_struct *t, elf_gregset_t *elfregs);
the loader. We need to make sure that it is out of the way of the program
that it will "exec", and that there is sufficient room for the brk. */
#define ELF_ET_DYN_BASE (2 * TASK_SIZE / 3)
#define ELF_ET_DYN_BASE (TASK_SIZE / 3 * 2)
/* When the program starts, a1 contains a pointer to a function to be
registered with atexit, as per the SVR4 ABI. A value of 0 means we

1
arch/arm/mach-s3c64xx/crag6410.h
View File

@ -14,6 +14,7 @@
#include <linux/gpio.h>
#define GLENFARCLAS_PMIC_IRQ_BASE IRQ_BOARD_START
#define BANFF_PMIC_IRQ_BASE (IRQ_BOARD_START + 64)
#define PCA935X_GPIO_BASE GPIO_BOARD_START
#define CODEC_GPIO_BASE (GPIO_BOARD_START + 8)

1
arch/arm/mach-s3c64xx/mach-crag6410.c
View File

@ -558,6 +558,7 @@ static struct wm831x_touch_pdata touch_pdata = {
static struct wm831x_pdata crag_pmic_pdata = {
.wm831x_num = 1,
.irq_base = BANFF_PMIC_IRQ_BASE,
.gpio_base = BANFF_PMIC_GPIO_BASE,
.soft_shutdown = true,

26
arch/arm64/Kconfig
View File

@ -168,6 +168,32 @@ endmenu
menu "Kernel Features"
menu "ARM errata workarounds"
config ARM64_ERRATUM_845719
bool "Cortex-A53: 845719: a load might read incorrect data"
depends on COMPAT
default n
help
This option adds an alternative code sequence to work around ARM
erratum 845719 on Cortex-A53 parts up to r0p4.
When running a compat (AArch32) userspace on an affected Cortex-A53
part, a load at EL0 from a virtual address that matches the bottom 32
bits of the virtual address used by a recent load at (AArch64) EL1
might return incorrect data.
The workaround is to write the contextidr_el1 register on exception
return to a 32-bit task.
Please note that this does not necessarily enable the workaround,
as it depends on the alternative framework, which will only patch
the kernel if an affected CPU is detected.
If unsure, say Y.
endmenu
config ARM64_64K_PAGES
bool "Enable 64KB pages support"
help

2
arch/arm64/kernel/Makefile
View File

@ -15,7 +15,7 @@ CFLAGS_REMOVE_return_address.o = -pg
arm64-obj-y := cputable.o debug-monitors.o entry.o irq.o fpsimd.o \
entry-fpsimd.o process.o ptrace.o setup.o signal.o \
sys.o stacktrace.o time.o traps.o io.o vdso.o \
hyp-stub.o psci.o cpu_ops.o insn.o return_address.o \
hyp-stub.o psci.o psci-call.o cpu_ops.o insn.o return_address.o \
opcodes.o
arm64-obj-$(CONFIG_COMPAT) += sys32.o kuser32.o signal32.o \

11
arch/arm64/kernel/entry.S
View File

@ -89,6 +89,17 @@
ldp x21, x22, [sp, #S_PC] // load ELR, SPSR
.if \el == 0
ldr x23, [sp, #S_SP] // load return stack pointer
#ifdef CONFIG_ARM64_ERRATUM_845719
tbz x22, #4, 1f
#ifdef CONFIG_PID_IN_CONTEXTIDR
mrs x29, contextidr_el1
msr contextidr_el1, x29
1:
#else
msr contextidr_el1, xzr
1:
#endif
#endif
.endif
.if \ret
ldr x1, [sp, #S_X1] // preserve x0 (syscall return)

28
arch/arm64/kernel/psci-call.S Normal file
View File

@ -0,0 +1,28 @@
/*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* Copyright (C) 2015 ARM Limited
*
* Author: Will Deacon <will.deacon@arm.com>
*/
#include <linux/linkage.h>
/* int __invoke_psci_fn_hvc(u64 function_id, u64 arg0, u64 arg1, u64 arg2) */
ENTRY(__invoke_psci_fn_hvc)
hvc #0
ret
ENDPROC(__invoke_psci_fn_hvc)
/* int __invoke_psci_fn_smc(u64 function_id, u64 arg0, u64 arg1, u64 arg2) */
ENTRY(__invoke_psci_fn_smc)
smc #0
ret
ENDPROC(__invoke_psci_fn_smc)

37
arch/arm64/kernel/psci.c
View File

@ -59,6 +59,9 @@ static struct psci_operations psci_ops;
static int (*invoke_psci_fn)(u64, u64, u64, u64);
typedef int (*psci_initcall_t)(const struct device_node *);
asmlinkage int __invoke_psci_fn_hvc(u64, u64, u64, u64);
asmlinkage int __invoke_psci_fn_smc(u64, u64, u64, u64);
enum psci_function {
PSCI_FN_CPU_SUSPEND,
PSCI_FN_CPU_ON,
@ -111,40 +114,6 @@ static void psci_power_state_unpack(u32 power_state,
PSCI_0_2_POWER_STATE_AFFL_SHIFT;
}
/*
* The following two functions are invoked via the invoke_psci_fn pointer
* and will not be inlined, allowing us to piggyback on the AAPCS.
*/
static noinline int __invoke_psci_fn_hvc(u64 function_id, u64 arg0, u64 arg1,
u64 arg2)
{
asm volatile(
__asmeq("%0", "x0")
__asmeq("%1", "x1")
__asmeq("%2", "x2")
__asmeq("%3", "x3")
"hvc #0\n"
: "+r" (function_id)
: "r" (arg0), "r" (arg1), "r" (arg2));
return function_id;
}
static noinline int __invoke_psci_fn_smc(u64 function_id, u64 arg0, u64 arg1,
u64 arg2)
{
asm volatile(
__asmeq("%0", "x0")
__asmeq("%1", "x1")
__asmeq("%2", "x2")
__asmeq("%3", "x3")
"smc #0\n"
: "+r" (function_id)
: "r" (arg0), "r" (arg1), "r" (arg2));
return function_id;
}
static int psci_get_version(void)
{
int err;

2
arch/avr32/mm/fault.c
View File

@ -142,6 +142,8 @@ asmlinkage void do_page_fault(unsigned long ecr, struct pt_regs *regs)
if (unlikely(fault & VM_FAULT_ERROR)) {
if (fault & VM_FAULT_OOM)
goto out_of_memory;
else if (fault & VM_FAULT_SIGSEGV)
goto bad_area;
else if (fault & VM_FAULT_SIGBUS)
goto do_sigbus;
BUG();

2
arch/c6x/kernel/time.c
View File

@ -49,7 +49,7 @@ u64 sched_clock(void)
return (tsc * sched_clock_multiplier) >> SCHED_CLOCK_SHIFT;
}
void time_init(void)
void __init time_init(void)
{
u64 tmp = (u64)NSEC_PER_SEC << SCHED_CLOCK_SHIFT;

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

@ -176,6 +176,8 @@ do_page_fault(unsigned long address, struct pt_regs *regs,
if (unlikely(fault & VM_FAULT_ERROR)) {
if (fault & VM_FAULT_OOM)
goto out_of_memory;
else if (fault & VM_FAULT_SIGSEGV)
goto bad_area;
else if (fault & VM_FAULT_SIGBUS)
goto do_sigbus;
BUG();

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

@ -168,6 +168,8 @@ asmlinkage void do_page_fault(int datammu, unsigned long esr0, unsigned long ear
if (unlikely(fault & VM_FAULT_ERROR)) {
if (fault & VM_FAULT_OOM)
goto out_of_memory;
else if (fault & VM_FAULT_SIGSEGV)
goto bad_area;
else if (fault & VM_FAULT_SIGBUS)
goto do_sigbus;
BUG();

2
arch/ia64/mm/fault.c
View File

@ -172,6 +172,8 @@ ia64_do_page_fault (unsigned long address, unsigned long isr, struct pt_regs *re
*/
if (fault & VM_FAULT_OOM) {
goto out_of_memory;
} else if (fault & VM_FAULT_SIGSEGV) {
goto bad_area;
} else if (fault & VM_FAULT_SIGBUS) {
signal = SIGBUS;
goto bad_area;

2
arch/m32r/mm/fault.c
View File

@ -200,6 +200,8 @@ asmlinkage void do_page_fault(struct pt_regs *regs, unsigned long error_code,
if (unlikely(fault & VM_FAULT_ERROR)) {
if (fault & VM_FAULT_OOM)
goto out_of_memory;
else if (fault & VM_FAULT_SIGSEGV)
goto bad_area;
else if (fault & VM_FAULT_SIGBUS)
goto do_sigbus;
BUG();

2
arch/m68k/mm/fault.c
View File

@ -153,6 +153,8 @@ int do_page_fault(struct pt_regs *regs, unsigned long address,
if (unlikely(fault & VM_FAULT_ERROR)) {
if (fault & VM_FAULT_OOM)
goto out_of_memory;
else if (fault & VM_FAULT_SIGSEGV)
goto map_err;
else if (fault & VM_FAULT_SIGBUS)
goto bus_err;
BUG();

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

@ -141,6 +141,8 @@ int do_page_fault(struct pt_regs *regs, unsigned long address,
if (unlikely(fault & VM_FAULT_ERROR)) {
if (fault & VM_FAULT_OOM)
goto out_of_memory;
else if (fault & VM_FAULT_SIGSEGV)
goto bad_area;
else if (fault & VM_FAULT_SIGBUS)
goto do_sigbus;
BUG();

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

@ -224,6 +224,8 @@ void do_page_fault(struct pt_regs *regs, unsigned long address,
if (unlikely(fault & VM_FAULT_ERROR)) {
if (fault & VM_FAULT_OOM)
goto out_of_memory;
else if (fault & VM_FAULT_SIGSEGV)
goto bad_area;
else if (fault & VM_FAULT_SIGBUS)
goto do_sigbus;
BUG();

7
arch/mips/include/asm/suspend.h
View File

@ -1,7 +0,0 @@
#ifndef __ASM_SUSPEND_H
#define __ASM_SUSPEND_H
/* References to section boundaries */
extern const void __nosave_begin, __nosave_end;
#endif /* __ASM_SUSPEND_H */

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

@ -157,6 +157,8 @@ asmlinkage void __kprobes do_page_fault(struct pt_regs *regs, unsigned long writ
if (unlikely(fault & VM_FAULT_ERROR)) {
if (fault & VM_FAULT_OOM)
goto out_of_memory;
else if (fault & VM_FAULT_SIGSEGV)
goto bad_area;
else if (fault & VM_FAULT_SIGBUS)
goto do_sigbus;
BUG();

2
arch/mips/power/cpu.c
View File

@ -7,7 +7,7 @@
* Author: Hu Hongbing <huhb@lemote.com>
* Wu Zhangjin <wuzhangjin@gmail.com>
*/
#include <asm/suspend.h>
#include <asm/sections.h>
#include <asm/fpu.h>
#include <asm/dsp.h>

3
arch/mips/power/hibernate.S
View File

@ -30,6 +30,8 @@ LEAF(swsusp_arch_suspend)
END(swsusp_arch_suspend)
LEAF(swsusp_arch_resume)
/* Avoid TLB mismatch during and after kernel resume */
jal local_flush_tlb_all
PTR_L t0, restore_pblist
0:
PTR_L t1, PBE_ADDRESS(t0) /* source */
@ -43,7 +45,6 @@ LEAF(swsusp_arch_resume)
bne t1, t3, 1b
PTR_L t0, PBE_NEXT(t0)
bnez t0, 0b
jal local_flush_tlb_all /* Avoid TLB mismatch after kernel resume */
PTR_LA t0, saved_regs
PTR_L ra, PT_R31(t0)
PTR_L sp, PT_R29(t0)

2
arch/mn10300/mm/fault.c
View File

@ -262,6 +262,8 @@ asmlinkage void do_page_fault(struct pt_regs *regs, unsigned long fault_code,
if (unlikely(fault & VM_FAULT_ERROR)) {
if (fault & VM_FAULT_OOM)
goto out_of_memory;
else if (fault & VM_FAULT_SIGSEGV)
goto bad_area;
else if (fault & VM_FAULT_SIGBUS)
goto do_sigbus;
BUG();

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

@ -171,6 +171,8 @@ asmlinkage void do_page_fault(struct pt_regs *regs, unsigned long address,
if (unlikely(fault & VM_FAULT_ERROR)) {
if (fault & VM_FAULT_OOM)
goto out_of_memory;
else if (fault & VM_FAULT_SIGSEGV)
goto bad_area;
else if (fault & VM_FAULT_SIGBUS)
goto do_sigbus;
BUG();

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

@ -220,6 +220,8 @@ void do_page_fault(struct pt_regs *regs, unsigned long code,
*/
if (fault & VM_FAULT_OOM)
goto out_of_memory;
else if (fault & VM_FAULT_SIGSEGV)
goto bad_area;
else if (fault & VM_FAULT_SIGBUS)
goto bad_area;
BUG();

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

@ -9,9 +9,7 @@
#include <linux/mm.h>
#include <asm/page.h>
/* References to section boundaries */
extern const void __nosave_begin, __nosave_end;
#include <asm/sections.h>
/*
* pfn_is_nosave - check if given pfn is in the 'nosave' section

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

@ -425,6 +425,8 @@ int __kprobes do_page_fault(struct pt_regs *regs, unsigned long address,
*/
fault = handle_mm_fault(mm, vma, address, flags);
if (unlikely(fault & (VM_FAULT_RETRY|VM_FAULT_ERROR))) {
if (fault & VM_FAULT_SIGSEGV)
goto bad_area;
rc = mm_fault_error(regs, address, fault);
if (rc >= MM_FAULT_RETURN)
goto bail;

2
arch/powerpc/perf/callchain.c
View File

@ -243,7 +243,7 @@ static void perf_callchain_user_64(struct perf_callchain_entry *entry,
sp = regs->gpr[1];
perf_callchain_store(entry, next_ip);
for (;;) {
while (entry->nr < PERF_MAX_STACK_DEPTH) {
fp = (unsigned long __user *) sp;
if (!valid_user_sp(sp, 1) || read_user_stack_64(fp, &next_sp))
return;

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

@ -75,7 +75,7 @@ int spu_handle_mm_fault(struct mm_struct *mm, unsigned long ea,
if (*flt & VM_FAULT_OOM) {
ret = -ENOMEM;
goto out_unlock;
} else if (*flt & VM_FAULT_SIGBUS) {
} else if (*flt & (VM_FAULT_SIGBUS | VM_FAULT_SIGSEGV)) {
ret = -EFAULT;
goto out_unlock;
}

2
arch/powerpc/platforms/cell/spufs/inode.c
View File

@ -164,7 +164,7 @@ static void spufs_prune_dir(struct dentry *dir)
struct dentry *dentry, *tmp;
mutex_lock(&dir->d_inode->i_mutex);
list_for_each_entry_safe(dentry, tmp, &dir->d_subdirs, d_u.d_child) {
list_for_each_entry_safe(dentry, tmp, &dir->d_subdirs, d_child) {
spin_lock(&dentry->d_lock);
if (!(d_unhashed(dentry)) && dentry->d_inode) {
dget_dlock(dentry);

11
arch/s390/kernel/suspend.c
View File

@ -9,12 +9,9 @@
#include <linux/pfn.h>
#include <linux/suspend.h>
#include <linux/mm.h>
#include <asm/sections.h>
#include <asm/ctl_reg.h>
/*
* References to section boundaries
*/
extern const void __nosave_begin, __nosave_end;
#include <asm/ipl.h>
/*
* The restore of the saved pages in an hibernation image will set
@ -138,6 +135,8 @@ int pfn_is_nosave(unsigned long pfn)
{
unsigned long nosave_begin_pfn = PFN_DOWN(__pa(&__nosave_begin));
unsigned long nosave_end_pfn = PFN_DOWN(__pa(&__nosave_end));
unsigned long eshared_pfn = PFN_DOWN(__pa(&_eshared)) - 1;
unsigned long stext_pfn = PFN_DOWN(__pa(&_stext));
/* Always save lowcore pages (LC protection might be enabled). */
if (pfn <= LC_PAGES)
@ -145,6 +144,8 @@ int pfn_is_nosave(unsigned long pfn)
if (pfn >= nosave_begin_pfn && pfn < nosave_end_pfn)
return 1;
/* Skip memory holes and read-only pages (NSS, DCSS, ...). */
if (pfn >= stext_pfn && pfn <= eshared_pfn)
return ipl_info.type == IPL_TYPE_NSS ? 1 : 0;
if (tprot(PFN_PHYS(pfn)))
return 1;
return 0;

1
arch/s390/kvm/priv.c
View File

@ -328,6 +328,7 @@ static void handle_stsi_3_2_2(struct kvm_vcpu *vcpu, struct sysinfo_3_2_2 *mem)
for (n = mem->count - 1; n > 0 ; n--)
memcpy(&mem->vm[n], &mem->vm[n - 1], sizeof(mem->vm[0]));
memset(&mem->vm[0], 0, sizeof(mem->vm[0]));
mem->vm[0].cpus_total = cpus;
mem->vm[0].cpus_configured = cpus;
mem->vm[0].cpus_standby = 0;

6
arch/s390/mm/fault.c
View File

@ -244,6 +244,12 @@ static noinline void do_fault_error(struct pt_regs *regs, int fault)
do_no_context(regs);
else
pagefault_out_of_memory();
} else if (fault & VM_FAULT_SIGSEGV) {
/* Kernel mode? Handle exceptions or die */
if (!user_mode(regs))
do_no_context(regs);
else
do_sigsegv(regs, SEGV_MAPERR);
} else if (fault & VM_FAULT_SIGBUS) {
/* Kernel mode? Handle exceptions or die */
if (!user_mode(regs))

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

@ -114,6 +114,8 @@ asmlinkage void do_page_fault(struct pt_regs *regs, unsigned long write,
if (unlikely(fault & VM_FAULT_ERROR)) {
if (fault & VM_FAULT_OOM)
goto out_of_memory;
else if (fault & VM_FAULT_SIGSEGV)
goto bad_area;
else if (fault & VM_FAULT_SIGBUS)
goto do_sigbus;
BUG();

1
arch/sh/include/asm/sections.h
View File

@ -3,7 +3,6 @@
#include <asm-generic/sections.h>
extern long __nosave_begin, __nosave_end;
extern long __machvec_start, __machvec_end;
extern char __uncached_start, __uncached_end;
extern char __start_eh_frame[], __stop_eh_frame[];

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

@ -353,6 +353,8 @@ mm_fault_error(struct pt_regs *regs, unsigned long error_code,
} else {
if (fault & VM_FAULT_SIGBUS)
do_sigbus(regs, error_code, address);
else if (fault & VM_FAULT_SIGSEGV)
bad_area(regs, error_code, address);
else
BUG();
}

2
arch/sparc/mm/fault_32.c
View File

@ -252,6 +252,8 @@ asmlinkage void do_sparc_fault(struct pt_regs *regs, int text_fault, int write,
if (unlikely(fault & VM_FAULT_ERROR)) {
if (fault & VM_FAULT_OOM)
goto out_of_memory;
else if (fault & VM_FAULT_SIGSEGV)
goto bad_area;
else if (fault & VM_FAULT_SIGBUS)
goto do_sigbus;
BUG();

2
arch/sparc/mm/fault_64.c
View File

@ -443,6 +443,8 @@ asmlinkage void __kprobes do_sparc64_fault(struct pt_regs *regs)
if (unlikely(fault & VM_FAULT_ERROR)) {
if (fault & VM_FAULT_OOM)
goto out_of_memory;
else if (fault & VM_FAULT_SIGSEGV)
goto bad_area;
else if (fault & VM_FAULT_SIGBUS)
goto do_sigbus;
BUG();

4
arch/sparc/power/hibernate.c
View File

@ -9,11 +9,9 @@
#include <asm/hibernate.h>
#include <asm/visasm.h>
#include <asm/page.h>
#include <asm/sections.h>
#include <asm/tlb.h>
/* References to section boundaries */
extern const void __nosave_begin, __nosave_end;
struct saved_context saved_context;
/*

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

@ -446,6 +446,8 @@ static int handle_page_fault(struct pt_regs *regs,
if (unlikely(fault & VM_FAULT_ERROR)) {
if (fault & VM_FAULT_OOM)
goto out_of_memory;
else if (fault & VM_FAULT_SIGSEGV)
goto bad_area;
else if (fault & VM_FAULT_SIGBUS)
goto do_sigbus;
BUG();

2
arch/um/kernel/trap.c
View File

@ -80,6 +80,8 @@ int handle_page_fault(unsigned long address, unsigned long ip,
if (unlikely(fault & VM_FAULT_ERROR)) {
if (fault & VM_FAULT_OOM) {
goto out_of_memory;
} else if (fault & VM_FAULT_SIGSEGV) {
goto out;
} else if (fault & VM_FAULT_SIGBUS) {
err = -EACCES;
goto out;

3
arch/unicore32/include/mach/pm.h
View File

@ -36,8 +36,5 @@ extern int puv3_pm_enter(suspend_state_t state);
/* Defined in hibernate_asm.S */
extern int restore_image(pgd_t *resume_pg_dir, struct pbe *restore_pblist);
/* References to section boundaries */
extern const void __nosave_begin, __nosave_end;
extern struct pbe *restore_pblist;
#endif

1
arch/unicore32/kernel/hibernate.c
View File

@ -18,6 +18,7 @@
#include <asm/page.h>
#include <asm/pgtable.h>
#include <asm/pgalloc.h>
#include <asm/sections.h>
#include <asm/suspend.h>
#include "mach/pm.h"

27
arch/x86/kvm/emulate.c
View File

@ -2450,7 +2450,7 @@ static int em_sysenter(struct x86_emulate_ctxt *ctxt)
* Not recognized on AMD in compat mode (but is recognized in legacy
* mode).
*/
if ((ctxt->mode == X86EMUL_MODE_PROT32) && (efer & EFER_LMA)
if ((ctxt->mode != X86EMUL_MODE_PROT64) && (efer & EFER_LMA)
&& !vendor_intel(ctxt))
return emulate_ud(ctxt);
@ -2463,25 +2463,13 @@ static int em_sysenter(struct x86_emulate_ctxt *ctxt)
setup_syscalls_segments(ctxt, &cs, &ss);
ops->get_msr(ctxt, MSR_IA32_SYSENTER_CS, &msr_data);
switch (ctxt->mode) {
case X86EMUL_MODE_PROT32:
if ((msr_data & 0xfffc) == 0x0)
return emulate_gp(ctxt, 0);
break;
case X86EMUL_MODE_PROT64:
if (msr_data == 0x0)
return emulate_gp(ctxt, 0);
break;
default:
break;
}
if ((msr_data & 0xfffc) == 0x0)
return emulate_gp(ctxt, 0);
ctxt->eflags &= ~(EFLG_VM | EFLG_IF | EFLG_RF);
cs_sel = (u16)msr_data;
cs_sel &= ~SELECTOR_RPL_MASK;
cs_sel = (u16)msr_data & ~SELECTOR_RPL_MASK;
ss_sel = cs_sel + 8;
ss_sel &= ~SELECTOR_RPL_MASK;
if (ctxt->mode == X86EMUL_MODE_PROT64 || (efer & EFER_LMA)) {
if (efer & EFER_LMA) {
cs.d = 0;
cs.l = 1;
}
@ -2490,10 +2478,11 @@ static int em_sysenter(struct x86_emulate_ctxt *ctxt)
ops->set_segment(ctxt, ss_sel, &ss, 0, VCPU_SREG_SS);
ops->get_msr(ctxt, MSR_IA32_SYSENTER_EIP, &msr_data);
ctxt->_eip = msr_data;
ctxt->_eip = (efer & EFER_LMA) ? msr_data : (u32)msr_data;
ops->get_msr(ctxt, MSR_IA32_SYSENTER_ESP, &msr_data);
*reg_write(ctxt, VCPU_REGS_RSP) = msr_data;
*reg_write(ctxt, VCPU_REGS_RSP) = (efer & EFER_LMA) ? msr_data :
(u32)msr_data;
return X86EMUL_CONTINUE;
}

10
arch/x86/mm/fault.c
View File

@ -812,11 +812,8 @@ do_sigbus(struct pt_regs *regs, unsigned long error_code, unsigned long address,
unsigned int fault)
{
struct task_struct *tsk = current;
struct mm_struct *mm = tsk->mm;
int code = BUS_ADRERR;
up_read(&mm->mmap_sem);
/* Kernel mode? Handle exceptions or die: */
if (!(error_code & PF_USER)) {
no_context(regs, error_code, address, SIGBUS, BUS_ADRERR);
@ -847,7 +844,6 @@ mm_fault_error(struct pt_regs *regs, unsigned long error_code,
unsigned long address, unsigned int fault)
{
if (fatal_signal_pending(current) && !(error_code & PF_USER)) {
up_read(&current->mm->mmap_sem);
no_context(regs, error_code, address, 0, 0);
return;
}
@ -855,14 +851,11 @@ mm_fault_error(struct pt_regs *regs, unsigned long error_code,
if (fault & VM_FAULT_OOM) {
/* Kernel mode? Handle exceptions or die: */
if (!(error_code & PF_USER)) {
up_read(&current->mm->mmap_sem);
no_context(regs, error_code, address,
SIGSEGV, SEGV_MAPERR);
return;
}
up_read(&current->mm->mmap_sem);
/*
* We ran out of memory, call the OOM killer, and return the
* userspace (which will retry the fault, or kill us if we got
@ -873,6 +866,8 @@ mm_fault_error(struct pt_regs *regs, unsigned long error_code,
if (fault & (VM_FAULT_SIGBUS|VM_FAULT_HWPOISON|
VM_FAULT_HWPOISON_LARGE))
do_sigbus(regs, error_code, address, fault);
else if (fault & VM_FAULT_SIGSEGV)
bad_area_nosemaphore(regs, error_code, address);
else
BUG();
}
@ -1193,6 +1188,7 @@ __do_page_fault(struct pt_regs *regs, unsigned long error_code)
return;
if (unlikely(fault & VM_FAULT_ERROR)) {
up_read(&mm->mmap_sem);
mm_fault_error(regs, error_code, address, fault);
return;
}

4
arch/x86/power/hibernate_32.c
View File

@ -13,13 +13,11 @@
#include <asm/page.h>
#include <asm/pgtable.h>
#include <asm/mmzone.h>
#include <asm/sections.h>
/* Defined in hibernate_asm_32.S */
extern int restore_image(void);
/* References to section boundaries */
extern const void __nosave_begin, __nosave_end;
/* Pointer to the temporary resume page tables */
pgd_t *resume_pg_dir;

4
arch/x86/power/hibernate_64.c
View File

@ -17,11 +17,9 @@
#include <asm/page.h>
#include <asm/pgtable.h>
#include <asm/mtrr.h>
#include <asm/sections.h>
#include <asm/suspend.h>
/* References to section boundaries */
extern const void __nosave_begin, __nosave_end;
/* Defined in hibernate_asm_64.S */
extern int restore_image(void);

30
arch/xtensa/Kconfig
View File

@ -287,6 +287,36 @@ menu "Executable file formats"
source "fs/Kconfig.binfmt"
config XTFPGA_LCD
bool "Enable XTFPGA LCD driver"
depends on XTENSA_PLATFORM_XTFPGA
default n
help
There's a 2x16 LCD on most of XTFPGA boards, kernel may output
progress messages there during bootup/shutdown. It may be useful
during board bringup.
If unsure, say N.
config XTFPGA_LCD_BASE_ADDR
hex "XTFPGA LCD base address"
depends on XTFPGA_LCD
default "0x0d0c0000"
help
Base address of the LCD controller inside KIO region.
Different boards from XTFPGA family have LCD controller at different
addresses. Please consult prototyping user guide for your board for
the correct address. Wrong address here may lead to hardware lockup.
config XTFPGA_LCD_8BIT_ACCESS
bool "Use 8-bit access to XTFPGA LCD"
depends on XTFPGA_LCD
default n
help
LCD may be connected with 4- or 8-bit interface, 8-bit access may
only be used with 8-bit interface. Please consult prototyping user
guide for your board for the correct interface width.
endmenu
source "net/Kconfig"

2
arch/xtensa/include/uapi/asm/unistd.h
View File

@ -715,7 +715,7 @@ __SYSCALL(323, sys_process_vm_writev, 6)
__SYSCALL(324, sys_name_to_handle_at, 5)
#define __NR_open_by_handle_at 325
__SYSCALL(325, sys_open_by_handle_at, 3)
#define __NR_sync_file_range 326
#define __NR_sync_file_range2 326
__SYSCALL(326, sys_sync_file_range2, 6)
#define __NR_perf_event_open 327
__SYSCALL(327, sys_perf_event_open, 5)

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

@ -117,6 +117,8 @@ void do_page_fault(struct pt_regs *regs)
if (unlikely(fault & VM_FAULT_ERROR)) {
if (fault & VM_FAULT_OOM)
goto out_of_memory;
else if (fault & VM_FAULT_SIGSEGV)
goto bad_area;
else if (fault & VM_FAULT_SIGBUS)
goto do_sigbus;
BUG();

3
arch/xtensa/platforms/xtfpga/Makefile
View File

@ -6,4 +6,5 @@
#
# Note 2! The CFLAGS definitions are in the main makefile...
obj-y = setup.o lcd.o
obj-y += setup.o
obj-$(CONFIG_XTFPGA_LCD) += lcd.o

3
arch/xtensa/platforms/xtfpga/include/platform/hardware.h
View File

@ -44,9 +44,6 @@
/* UART */
#define DUART16552_PADDR (XCHAL_KIO_PADDR + 0x0D050020)
/* LCD instruction and data addresses. */
#define LCD_INSTR_ADDR ((char *)IOADDR(0x0D040000))
#define LCD_DATA_ADDR ((char *)IOADDR(0x0D040004))
/* Misc. */
#define XTFPGA_FPGAREGS_VADDR IOADDR(0x0D020000)

15
arch/xtensa/platforms/xtfpga/include/platform/lcd.h
View File

@ -11,10 +11,25 @@
#ifndef __XTENSA_XTAVNET_LCD_H
#define __XTENSA_XTAVNET_LCD_H
#ifdef CONFIG_XTFPGA_LCD
/* Display string STR at position POS on the LCD. */
void lcd_disp_at_pos(char *str, unsigned char pos);
/* Shift the contents of the LCD display left or right. */
void lcd_shiftleft(void);
void lcd_shiftright(void);
#else
static inline void lcd_disp_at_pos(char *str, unsigned char pos)
{
}
static inline void lcd_shiftleft(void)
{
}
static inline void lcd_shiftright(void)
{
}
#endif
#endif

55
arch/xtensa/platforms/xtfpga/lcd.c
View File

@ -1,50 +1,63 @@
/*
* Driver for the LCD display on the Tensilica LX60 Board.
* Driver for the LCD display on the Tensilica XTFPGA board family.
* http://www.mytechcorp.com/cfdata/productFile/File1/MOC-16216B-B-A0A04.pdf
*
* This file is subject to the terms and conditions of the GNU General Public
* License. See the file "COPYING" in the main directory of this archive
* for more details.
*
* Copyright (C) 2001, 2006 Tensilica Inc.
* Copyright (C) 2015 Cadence Design Systems Inc.
*/
/*
*
* FIXME: this code is from the examples from the LX60 user guide.
*
* The lcd_pause function does busy waiting, which is probably not
* great. Maybe the code could be changed to use kernel timers, or
* change the hardware to not need to wait.
*/
#include <linux/delay.h>
#include <linux/init.h>
#include <linux/io.h>
#include <platform/hardware.h>
#include <platform/lcd.h>
#include <linux/delay.h>
#define LCD_PAUSE_ITERATIONS 4000
/* LCD instruction and data addresses. */
#define LCD_INSTR_ADDR ((char *)IOADDR(CONFIG_XTFPGA_LCD_BASE_ADDR))
#define LCD_DATA_ADDR (LCD_INSTR_ADDR + 4)
#define LCD_CLEAR 0x1
#define LCD_DISPLAY_ON 0xc
/* 8bit and 2 lines display */
#define LCD_DISPLAY_MODE8BIT 0x38
#define LCD_DISPLAY_MODE4BIT 0x28
#define LCD_DISPLAY_POS 0x80
#define LCD_SHIFT_LEFT 0x18
#define LCD_SHIFT_RIGHT 0x1c
static void lcd_put_byte(u8 *addr, u8 data)
{
#ifdef CONFIG_XTFPGA_LCD_8BIT_ACCESS
ACCESS_ONCE(*addr) = data;
#else
ACCESS_ONCE(*addr) = data & 0xf0;
ACCESS_ONCE(*addr) = (data << 4) & 0xf0;
#endif
}
static int __init lcd_init(void)
{
*LCD_INSTR_ADDR = LCD_DISPLAY_MODE8BIT;
ACCESS_ONCE(*LCD_INSTR_ADDR) = LCD_DISPLAY_MODE8BIT;
mdelay(5);
*LCD_INSTR_ADDR = LCD_DISPLAY_MODE8BIT;
ACCESS_ONCE(*LCD_INSTR_ADDR) = LCD_DISPLAY_MODE8BIT;
udelay(200);
*LCD_INSTR_ADDR = LCD_DISPLAY_MODE8BIT;
ACCESS_ONCE(*LCD_INSTR_ADDR) = LCD_DISPLAY_MODE8BIT;
udelay(50);
*LCD_INSTR_ADDR = LCD_DISPLAY_ON;
#ifndef CONFIG_XTFPGA_LCD_8BIT_ACCESS
ACCESS_ONCE(*LCD_INSTR_ADDR) = LCD_DISPLAY_MODE4BIT;
udelay(50);
*LCD_INSTR_ADDR = LCD_CLEAR;
lcd_put_byte(LCD_INSTR_ADDR, LCD_DISPLAY_MODE4BIT);
udelay(50);
#endif
lcd_put_byte(LCD_INSTR_ADDR, LCD_DISPLAY_ON);
udelay(50);
lcd_put_byte(LCD_INSTR_ADDR, LCD_CLEAR);
mdelay(10);
lcd_disp_at_pos("XTENSA LINUX", 0);
return 0;
@ -52,10 +65,10 @@ static int __init lcd_init(void)
void lcd_disp_at_pos(char *str, unsigned char pos)
{
*LCD_INSTR_ADDR = LCD_DISPLAY_POS | pos;
lcd_put_byte(LCD_INSTR_ADDR, LCD_DISPLAY_POS | pos);
udelay(100);
while (*str != 0) {
*LCD_DATA_ADDR = *str;
lcd_put_byte(LCD_DATA_ADDR, *str);
udelay(200);
str++;
}
@ -63,13 +76,13 @@ void lcd_disp_at_pos(char *str, unsigned char pos)
void lcd_shiftleft(void)
{
*LCD_INSTR_ADDR = LCD_SHIFT_LEFT;
lcd_put_byte(LCD_INSTR_ADDR, LCD_SHIFT_LEFT);
udelay(50);
}
void lcd_shiftright(void)
{
*LCD_INSTR_ADDR = LCD_SHIFT_RIGHT;
lcd_put_byte(LCD_INSTR_ADDR, LCD_SHIFT_RIGHT);
udelay(50);
}

3
drivers/acpi/acpica/dsopcode.c
View File

@ -539,8 +539,7 @@ acpi_ds_eval_table_region_operands(struct acpi_walk_state *walk_state,
return_ACPI_STATUS(AE_NOT_EXIST);
}
obj_desc->region.address =
(acpi_physical_address) ACPI_TO_INTEGER(table);
obj_desc->region.address = ACPI_PTR_TO_PHYSADDR(table);
obj_desc->region.length = table->length;
ACPI_DEBUG_PRINT((ACPI_DB_EXEC, "RgnObj %p Addr %8.8X%8.8X Len %X\n",

5
drivers/acpi/acpica/tbinstal.c
View File

@ -301,8 +301,7 @@ struct acpi_table_header *acpi_tb_table_override(struct acpi_table_header
ACPI_EXCEPTION((AE_INFO, AE_NO_MEMORY,
"%4.4s %p Attempted physical table override failed",
table_header->signature,
ACPI_CAST_PTR(void,
table_desc->address)));
ACPI_PHYSADDR_TO_PTR(table_desc->address)));
return (NULL);
}
@ -318,7 +317,7 @@ struct acpi_table_header *acpi_tb_table_override(struct acpi_table_header
ACPI_INFO((AE_INFO,
"%4.4s %p %s table override, new table: %p",
table_header->signature,
ACPI_CAST_PTR(void, table_desc->address),
ACPI_PHYSADDR_TO_PTR(table_desc->address),
override_type, new_table));
/* We can now unmap/delete the original table (if fully mapped) */

7
drivers/acpi/acpica/tbxfroot.c
View File

@ -118,7 +118,7 @@ static acpi_status acpi_tb_validate_rsdp(struct acpi_table_rsdp *rsdp)
*
******************************************************************************/
acpi_status acpi_find_root_pointer(acpi_size *table_address)
acpi_status acpi_find_root_pointer(acpi_physical_address * table_address)
{
u8 *table_ptr;
u8 *mem_rover;
@ -176,7 +176,8 @@ acpi_status acpi_find_root_pointer(acpi_size *table_address)
physical_address +=
(u32) ACPI_PTR_DIFF(mem_rover, table_ptr);
*table_address = physical_address;
*table_address =
(acpi_physical_address) physical_address;
return_ACPI_STATUS(AE_OK);
}
}
@ -209,7 +210,7 @@ acpi_status acpi_find_root_pointer(acpi_size *table_address)
(ACPI_HI_RSDP_WINDOW_BASE +
ACPI_PTR_DIFF(mem_rover, table_ptr));
*table_address = physical_address;
*table_address = (acpi_physical_address) physical_address;
return_ACPI_STATUS(AE_OK);
}

2
drivers/acpi/processor_idle.c
View File

@ -978,7 +978,7 @@ static int acpi_processor_setup_cpuidle_states(struct acpi_processor *pr)
return -EINVAL;
drv->safe_state_index = -1;
for (i = 0; i < CPUIDLE_STATE_MAX; i++) {
for (i = CPUIDLE_DRIVER_STATE_START; i < CPUIDLE_STATE_MAX; i++) {
drv->states[i].name[0] = '\0';
drv->states[i].desc[0] = '\0';
}

2
drivers/block/Kconfig
View File

@ -105,6 +105,8 @@ source "drivers/block/paride/Kconfig"
source "drivers/block/mtip32xx/Kconfig"
source "drivers/block/zram/Kconfig"
config BLK_CPQ_DA
tristate "Compaq SMART2 support"
depends on PCI && VIRT_TO_BUS

1
drivers/block/Makefile
View File

@ -41,6 +41,7 @@ obj-$(CONFIG_BLK_DEV_RBD) += rbd.o
obj-$(CONFIG_BLK_DEV_PCIESSD_MTIP32XX) += mtip32xx/
obj-$(CONFIG_BLK_DEV_RSXX) += rsxx/
obj-$(CONFIG_ZRAM) += zram/
nvme-y := nvme-core.o nvme-scsi.o
swim_mod-y := swim.o swim_asm.o

8
drivers/block/nbd.c
View File

@ -815,10 +815,6 @@ static int __init nbd_init(void)
return -EINVAL;
}
nbd_dev = kcalloc(nbds_max, sizeof(*nbd_dev), GFP_KERNEL);
if (!nbd_dev)
return -ENOMEM;
part_shift = 0;
if (max_part > 0) {
part_shift = fls(max_part);
@ -840,6 +836,10 @@ static int __init nbd_init(void)
if (nbds_max > 1UL << (MINORBITS - part_shift))
return -EINVAL;
nbd_dev = kcalloc(nbds_max, sizeof(*nbd_dev), GFP_KERNEL);
if (!nbd_dev)
return -ENOMEM;
for (i = 0; i < nbds_max; i++) {
struct gendisk *disk = alloc_disk(1 << part_shift);
if (!disk)

5
drivers/block/rbd.c
View File

@ -2115,6 +2115,11 @@ static bool rbd_img_obj_end_request(struct rbd_obj_request *obj_request)
result, xferred);
if (!img_request->result)
img_request->result = result;
/*
* Need to end I/O on the entire obj_request worth of
* bytes in case of error.
*/
xferred = obj_request->length;
}
/* Image object requests don't own their page array */

11
drivers/staging/zram/Kconfig → drivers/block/zram/Kconfig
View File

@ -14,7 +14,16 @@ config ZRAM
disks and maybe many more.
See zram.txt for more information.
Project home: <https://compcache.googlecode.com/>
config ZRAM_LZ4_COMPRESS
bool "Enable LZ4 algorithm support"
depends on ZRAM
select LZ4_COMPRESS
select LZ4_DECOMPRESS
default n
help
This option enables LZ4 compression algorithm support. Compression
algorithm can be changed using `comp_algorithm' device attribute.
config ZRAM_DEBUG
bool "Compressed RAM block device debug support"

5
drivers/block/zram/Makefile Normal file
View File

@ -0,0 +1,5 @@
zram-y := zcomp_lzo.o zcomp.o zram_drv.o
zram-$(CONFIG_ZRAM_LZ4_COMPRESS) += zcomp_lz4.o
obj-$(CONFIG_ZRAM) += zram.o

353
drivers/block/zram/zcomp.c Normal file
View File

@ -0,0 +1,353 @@
/*
* Copyright (C) 2014 Sergey Senozhatsky.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version
* 2 of the License, or (at your option) any later version.
*/
#include <linux/kernel.h>
#include <linux/string.h>
#include <linux/err.h>
#include <linux/slab.h>
#include <linux/wait.h>
#include <linux/sched.h>
#include "zcomp.h"
#include "zcomp_lzo.h"
#ifdef CONFIG_ZRAM_LZ4_COMPRESS
#include "zcomp_lz4.h"
#endif
/*
* single zcomp_strm backend
*/
struct zcomp_strm_single {
struct mutex strm_lock;
struct zcomp_strm *zstrm;
};
/*
* multi zcomp_strm backend
*/
struct zcomp_strm_multi {
/* protect strm list */
spinlock_t strm_lock;
/* max possible number of zstrm streams */
int max_strm;
/* number of available zstrm streams */
int avail_strm;
/* list of available strms */
struct list_head idle_strm;
wait_queue_head_t strm_wait;
};
static struct zcomp_backend *backends[] = {
&zcomp_lzo,
#ifdef CONFIG_ZRAM_LZ4_COMPRESS
&zcomp_lz4,
#endif
NULL
};
static struct zcomp_backend *find_backend(const char *compress)
{
int i = 0;
while (backends[i]) {
if (sysfs_streq(compress, backends[i]->name))
break;
i++;
}
return backends[i];
}
static void zcomp_strm_free(struct zcomp *comp, struct zcomp_strm *zstrm)
{
if (zstrm->private)
comp->backend->destroy(zstrm->private);
free_pages((unsigned long)zstrm->buffer, 1);
kfree(zstrm);
}
/*
* allocate new zcomp_strm structure with ->private initialized by
* backend, return NULL on error
*/
static struct zcomp_strm *zcomp_strm_alloc(struct zcomp *comp)
{
struct zcomp_strm *zstrm = kmalloc(sizeof(*zstrm), GFP_KERNEL);
if (!zstrm)
return NULL;
zstrm->private = comp->backend->create();
/*
* allocate 2 pages. 1 for compressed data, plus 1 extra for the
* case when compressed size is larger than the original one
*/
zstrm->buffer = (void *)__get_free_pages(GFP_KERNEL | __GFP_ZERO, 1);
if (!zstrm->private || !zstrm->buffer) {
zcomp_strm_free(comp, zstrm);
zstrm = NULL;
}
return zstrm;
}
/*
* get idle zcomp_strm or wait until other process release
* (zcomp_strm_release()) one for us
*/
static struct zcomp_strm *zcomp_strm_multi_find(struct zcomp *comp)
{
struct zcomp_strm_multi *zs = comp->stream;
struct zcomp_strm *zstrm;
while (1) {
spin_lock(&zs->strm_lock);
if (!list_empty(&zs->idle_strm)) {
zstrm = list_entry(zs->idle_strm.next,
struct zcomp_strm, list);
list_del(&zstrm->list);
spin_unlock(&zs->strm_lock);
return zstrm;
}
/* zstrm streams limit reached, wait for idle stream */
if (zs->avail_strm >= zs->max_strm) {
spin_unlock(&zs->strm_lock);
wait_event(zs->strm_wait, !list_empty(&zs->idle_strm));
continue;
}
/* allocate new zstrm stream */
zs->avail_strm++;
spin_unlock(&zs->strm_lock);
zstrm = zcomp_strm_alloc(comp);
if (!zstrm) {
spin_lock(&zs->strm_lock);
zs->avail_strm--;
spin_unlock(&zs->strm_lock);
wait_event(zs->strm_wait, !list_empty(&zs->idle_strm));
continue;
}
break;
}
return zstrm;
}
/* add stream back to idle list and wake up waiter or free the stream */
static void zcomp_strm_multi_release(struct zcomp *comp, struct zcomp_strm *zstrm)
{
struct zcomp_strm_multi *zs = comp->stream;
spin_lock(&zs->strm_lock);
if (zs->avail_strm <= zs->max_strm) {
list_add(&zstrm->list, &zs->idle_strm);
spin_unlock(&zs->strm_lock);
wake_up(&zs->strm_wait);
return;
}
zs->avail_strm--;
spin_unlock(&zs->strm_lock);
zcomp_strm_free(comp, zstrm);
}
/* change max_strm limit */
static bool zcomp_strm_multi_set_max_streams(struct zcomp *comp, int num_strm)
{
struct zcomp_strm_multi *zs = comp->stream;
struct zcomp_strm *zstrm;
spin_lock(&zs->strm_lock);
zs->max_strm = num_strm;
/*
* if user has lowered the limit and there are idle streams,
* immediately free as much streams (and memory) as we can.
*/
while (zs->avail_strm > num_strm && !list_empty(&zs->idle_strm)) {
zstrm = list_entry(zs->idle_strm.next,
struct zcomp_strm, list);
list_del(&zstrm->list);
zcomp_strm_free(comp, zstrm);
zs->avail_strm--;
}
spin_unlock(&zs->strm_lock);
return true;
}
static void zcomp_strm_multi_destroy(struct zcomp *comp)
{
struct zcomp_strm_multi *zs = comp->stream;
struct zcomp_strm *zstrm;
while (!list_empty(&zs->idle_strm)) {
zstrm = list_entry(zs->idle_strm.next,
struct zcomp_strm, list);
list_del(&zstrm->list);
zcomp_strm_free(comp, zstrm);
}
kfree(zs);
}
static int zcomp_strm_multi_create(struct zcomp *comp, int max_strm)
{
struct zcomp_strm *zstrm;
struct zcomp_strm_multi *zs;
comp->destroy = zcomp_strm_multi_destroy;
comp->strm_find = zcomp_strm_multi_find;
comp->strm_release = zcomp_strm_multi_release;
comp->set_max_streams = zcomp_strm_multi_set_max_streams;
zs = kmalloc(sizeof(struct zcomp_strm_multi), GFP_KERNEL);
if (!zs)
return -ENOMEM;
comp->stream = zs;
spin_lock_init(&zs->strm_lock);
INIT_LIST_HEAD(&zs->idle_strm);
init_waitqueue_head(&zs->strm_wait);
zs->max_strm = max_strm;
zs->avail_strm = 1;
zstrm = zcomp_strm_alloc(comp);
if (!zstrm) {
kfree(zs);
return -ENOMEM;
}
list_add(&zstrm->list, &zs->idle_strm);
return 0;
}
static struct zcomp_strm *zcomp_strm_single_find(struct zcomp *comp)
{
struct zcomp_strm_single *zs = comp->stream;
mutex_lock(&zs->strm_lock);
return zs->zstrm;
}
static void zcomp_strm_single_release(struct zcomp *comp,
struct zcomp_strm *zstrm)
{
struct zcomp_strm_single *zs = comp->stream;
mutex_unlock(&zs->strm_lock);
}
static bool zcomp_strm_single_set_max_streams(struct zcomp *comp, int num_strm)
{
/* zcomp_strm_single support only max_comp_streams == 1 */
return false;
}
static void zcomp_strm_single_destroy(struct zcomp *comp)
{
struct zcomp_strm_single *zs = comp->stream;
zcomp_strm_free(comp, zs->zstrm);
kfree(zs);
}
static int zcomp_strm_single_create(struct zcomp *comp)
{
struct zcomp_strm_single *zs;
comp->destroy = zcomp_strm_single_destroy;
comp->strm_find = zcomp_strm_single_find;
comp->strm_release = zcomp_strm_single_release;
comp->set_max_streams = zcomp_strm_single_set_max_streams;
zs = kmalloc(sizeof(struct zcomp_strm_single), GFP_KERNEL);
if (!zs)
return -ENOMEM;
comp->stream = zs;
mutex_init(&zs->strm_lock);
zs->zstrm = zcomp_strm_alloc(comp);
if (!zs->zstrm) {
kfree(zs);
return -ENOMEM;
}
return 0;
}
/* show available compressors */
ssize_t zcomp_available_show(const char *comp, char *buf)
{
ssize_t sz = 0;
int i = 0;
while (backends[i]) {
if (sysfs_streq(comp, backends[i]->name))
sz += scnprintf(buf + sz, PAGE_SIZE - sz - 2,
"[%s] ", backends[i]->name);
else
sz += scnprintf(buf + sz, PAGE_SIZE - sz - 2,
"%s ", backends[i]->name);
i++;
}
sz += scnprintf(buf + sz, PAGE_SIZE - sz, "\n");
return sz;
}
bool zcomp_set_max_streams(struct zcomp *comp, int num_strm)
{
return comp->set_max_streams(comp, num_strm);
}
struct zcomp_strm *zcomp_strm_find(struct zcomp *comp)
{
return comp->strm_find(comp);
}
void zcomp_strm_release(struct zcomp *comp, struct zcomp_strm *zstrm)
{
comp->strm_release(comp, zstrm);
}
int zcomp_compress(struct zcomp *comp, struct zcomp_strm *zstrm,
const unsigned char *src, size_t *dst_len)
{
return comp->backend->compress(src, zstrm->buffer, dst_len,
zstrm->private);
}
int zcomp_decompress(struct zcomp *comp, const unsigned char *src,
size_t src_len, unsigned char *dst)
{
return comp->backend->decompress(src, src_len, dst);
}
void zcomp_destroy(struct zcomp *comp)
{
comp->destroy(comp);
kfree(comp);
}
/*
* search available compressors for requested algorithm.
* allocate new zcomp and initialize it. return compressing
* backend pointer or ERR_PTR if things went bad. ERR_PTR(-EINVAL)
* if requested algorithm is not supported, ERR_PTR(-ENOMEM) in
* case of allocation error.
*/
struct zcomp *zcomp_create(const char *compress, int max_strm)
{
struct zcomp *comp;
struct zcomp_backend *backend;
backend = find_backend(compress);
if (!backend)
return ERR_PTR(-EINVAL);
comp = kzalloc(sizeof(struct zcomp), GFP_KERNEL);
if (!comp)
return ERR_PTR(-ENOMEM);
comp->backend = backend;
if (max_strm > 1)
zcomp_strm_multi_create(comp, max_strm);
else
zcomp_strm_single_create(comp);
if (!comp->stream) {
kfree(comp);
return ERR_PTR(-ENOMEM);
}
return comp;
}

68
drivers/block/zram/zcomp.h Normal file
View File

@ -0,0 +1,68 @@
/*
* Copyright (C) 2014 Sergey Senozhatsky.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version
* 2 of the License, or (at your option) any later version.
*/
#ifndef _ZCOMP_H_
#define _ZCOMP_H_
#include <linux/mutex.h>
struct zcomp_strm {
/* compression/decompression buffer */
void *buffer;
/*
* The private data of the compression stream, only compression
* stream backend can touch this (e.g. compression algorithm
* working memory)
*/
void *private;
/* used in multi stream backend, protected by backend strm_lock */
struct list_head list;
};
/* static compression backend */
struct zcomp_backend {
int (*compress)(const unsigned char *src, unsigned char *dst,
size_t *dst_len, void *private);
int (*decompress)(const unsigned char *src, size_t src_len,
unsigned char *dst);
void *(*create)(void);
void (*destroy)(void *private);
const char *name;
};
/* dynamic per-device compression frontend */
struct zcomp {
void *stream;
struct zcomp_backend *backend;
struct zcomp_strm *(*strm_find)(struct zcomp *comp);
void (*strm_release)(struct zcomp *comp, struct zcomp_strm *zstrm);
bool (*set_max_streams)(struct zcomp *comp, int num_strm);
void (*destroy)(struct zcomp *comp);
};
ssize_t zcomp_available_show(const char *comp, char *buf);
struct zcomp *zcomp_create(const char *comp, int max_strm);
void zcomp_destroy(struct zcomp *comp);
struct zcomp_strm *zcomp_strm_find(struct zcomp *comp);
void zcomp_strm_release(struct zcomp *comp, struct zcomp_strm *zstrm);
int zcomp_compress(struct zcomp *comp, struct zcomp_strm *zstrm,
const unsigned char *src, size_t *dst_len);
int zcomp_decompress(struct zcomp *comp, const unsigned char *src,
size_t src_len, unsigned char *dst);
bool zcomp_set_max_streams(struct zcomp *comp, int num_strm);
#endif /* _ZCOMP_H_ */

47
drivers/block/zram/zcomp_lz4.c Normal file
View File

@ -0,0 +1,47 @@
/*
* Copyright (C) 2014 Sergey Senozhatsky.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version
* 2 of the License, or (at your option) any later version.
*/
#include <linux/kernel.h>
#include <linux/slab.h>
#include <linux/lz4.h>
#include "zcomp_lz4.h"
static void *zcomp_lz4_create(void)
{
return kzalloc(LZ4_MEM_COMPRESS, GFP_KERNEL);
}
static void zcomp_lz4_destroy(void *private)
{
kfree(private);
}
static int zcomp_lz4_compress(const unsigned char *src, unsigned char *dst,
size_t *dst_len, void *private)
{
/* return : Success if return 0 */
return lz4_compress(src, PAGE_SIZE, dst, dst_len, private);
}
static int zcomp_lz4_decompress(const unsigned char *src, size_t src_len,
unsigned char *dst)
{
size_t dst_len = PAGE_SIZE;
/* return : Success if return 0 */
return lz4_decompress_unknownoutputsize(src, src_len, dst, &dst_len);
}
struct zcomp_backend zcomp_lz4 = {
.compress = zcomp_lz4_compress,
.decompress = zcomp_lz4_decompress,
.create = zcomp_lz4_create,
.destroy = zcomp_lz4_destroy,
.name = "lz4",
};

17
drivers/block/zram/zcomp_lz4.h Normal file
View File

@ -0,0 +1,17 @@
/*
* Copyright (C) 2014 Sergey Senozhatsky.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version
* 2 of the License, or (at your option) any later version.
*/
#ifndef _ZCOMP_LZ4_H_
#define _ZCOMP_LZ4_H_
#include "zcomp.h"
extern struct zcomp_backend zcomp_lz4;
#endif /* _ZCOMP_LZ4_H_ */

47
drivers/block/zram/zcomp_lzo.c Normal file
View File

@ -0,0 +1,47 @@
/*
* Copyright (C) 2014 Sergey Senozhatsky.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version
* 2 of the License, or (at your option) any later version.
*/
#include <linux/kernel.h>
#include <linux/slab.h>
#include <linux/lzo.h>
#include "zcomp_lzo.h"
static void *lzo_create(void)
{
return kzalloc(LZO1X_MEM_COMPRESS, GFP_KERNEL);
}
static void lzo_destroy(void *private)
{
kfree(private);
}
static int lzo_compress(const unsigned char *src, unsigned char *dst,
size_t *dst_len, void *private)
{
int ret = lzo1x_1_compress(src, PAGE_SIZE, dst, dst_len, private);
return ret == LZO_E_OK ? 0 : ret;
}
static int lzo_decompress(const unsigned char *src, size_t src_len,
unsigned char *dst)
{
size_t dst_len = PAGE_SIZE;
int ret = lzo1x_decompress_safe(src, src_len, dst, &dst_len);
return ret == LZO_E_OK ? 0 : ret;
}
struct zcomp_backend zcomp_lzo = {
.compress = lzo_compress,
.decompress = lzo_decompress,
.create = lzo_create,
.destroy = lzo_destroy,
.name = "lzo",
};

17
drivers/block/zram/zcomp_lzo.h Normal file
View File

@ -0,0 +1,17 @@
/*
* Copyright (C) 2014 Sergey Senozhatsky.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version
* 2 of the License, or (at your option) any later version.
*/
#ifndef _ZCOMP_LZO_H_
#define _ZCOMP_LZO_H_
#include "zcomp.h"
extern struct zcomp_backend zcomp_lzo;
#endif /* _ZCOMP_LZO_H_ */

1162
drivers/block/zram/zram_drv.c Normal file
View File

File diff suppressed because it is too large Load Diff

85
drivers/staging/zram/zram_drv.h → drivers/block/zram/zram_drv.h
View File

@ -2,6 +2,7 @@
* Compressed RAM block device
*
* Copyright (C) 2008, 2009, 2010 Nitin Gupta
* 2012, 2013 Minchan Kim
*
* This code is released using a dual license strategy: BSD/GPL
* You can choose the licence that better fits your requirements.
@ -9,16 +10,15 @@
* Released under the terms of 3-clause BSD License
* Released under the terms of GNU General Public License Version 2.0
*
* Project home: http://compcache.googlecode.com
*/
#ifndef _ZRAM_DRV_H_
#define _ZRAM_DRV_H_
#include <linux/spinlock.h>
#include <linux/mutex.h>
#include <linux/zsmalloc.h>
#include "../zsmalloc/zsmalloc.h"
#include "zcomp.h"
/*
* Some arbitrary value. This is just to catch
@ -43,7 +43,6 @@ static const size_t max_zpage_size = PAGE_SIZE / 4 * 3;
/*-- End of configurable params */
#define SECTOR_SHIFT 9
#define SECTOR_SIZE (1 << SECTOR_SHIFT)
#define SECTORS_PER_PAGE_SHIFT (PAGE_SHIFT - SECTOR_SHIFT)
#define SECTORS_PER_PAGE (1 << SECTORS_PER_PAGE_SHIFT)
#define ZRAM_LOGICAL_BLOCK_SHIFT 12
@ -51,10 +50,24 @@ static const size_t max_zpage_size = PAGE_SIZE / 4 * 3;
#define ZRAM_SECTOR_PER_LOGICAL_BLOCK \
(1 << (ZRAM_LOGICAL_BLOCK_SHIFT - SECTOR_SHIFT))
/* Flags for zram pages (table[page_no].flags) */
/*
* The lower ZRAM_FLAG_SHIFT bits of table.value is for
* object size (excluding header), the higher bits is for
* zram_pageflags.
*
* zram is mainly used for memory efficiency so we want to keep memory
* footprint small so we can squeeze size and flags into a field.
* The lower ZRAM_FLAG_SHIFT bits is for object size (excluding header),
* the higher bits is for zram_pageflags.
*/
#define ZRAM_FLAG_SHIFT 24
/* Flags for zram pages (table[page_no].value) */
enum zram_pageflags {
/* Page consists entirely of zeros */
ZRAM_ZERO,
ZRAM_ZERO = ZRAM_FLAG_SHIFT,
ZRAM_ACCESS, /* page is now accessed */
__NR_ZRAM_PAGEFLAGS,
};
@ -62,43 +75,35 @@ enum zram_pageflags {
/*-- Data structures */
/* Allocated for each disk page */
struct table {
struct zram_table_entry {
unsigned long handle;
u16 size; /* object size (excluding header) */
u8 count; /* object ref count (not yet used) */
u8 flags;
} __aligned(4);
unsigned long value;
};
struct zram_stats {
u64 compr_size; /* compressed size of pages stored */
u64 num_reads; /* failed + successful */
u64 num_writes; /* --do-- */
u64 failed_reads; /* should NEVER! happen */
u64 failed_writes; /* can happen when memory is too low */
u64 invalid_io; /* non-page-aligned I/O requests */
u64 notify_free; /* no. of swap slot free notifications */
u32 pages_zero; /* no. of zero filled pages */
u32 pages_stored; /* no. of pages currently stored */
u32 good_compress; /* % of pages with compression ratio<=50% */
u32 bad_compress; /* % of pages with compression ratio>=75% */
atomic64_t compr_data_size; /* compressed size of pages stored */
atomic64_t num_reads; /* failed + successful */
atomic64_t num_writes; /* --do-- */
atomic64_t failed_reads; /* can happen when memory is too low */
atomic64_t failed_writes; /* can happen when memory is too low */
atomic64_t invalid_io; /* non-page-aligned I/O requests */
atomic64_t notify_free; /* no. of swap slot free notifications */
atomic64_t zero_pages; /* no. of zero filled pages */
atomic64_t pages_stored; /* no. of pages currently stored */
atomic_long_t max_used_pages; /* no. of maximum pages stored */
};
struct zram_meta {
void *compress_workmem;
void *compress_buffer;
struct table *table;
struct zram_table_entry *table;
struct zs_pool *mem_pool;
};
struct zram {
struct zram_meta *meta;
spinlock_t stat64_lock; /* protect 64-bit stats */
struct rw_semaphore lock; /* protect compression buffers, table,
* 32bit stat counters against concurrent
* notifications, reads and writes */
struct request_queue *queue;
struct gendisk *disk;
int init_done;
struct zcomp *comp;
/* Prevent concurrent execution of device init, reset and R/W request */
struct rw_semaphore init_lock;
/*
@ -106,19 +111,13 @@ struct zram {
* we can store in a disk.
*/
u64 disksize; /* bytes */
int max_comp_streams;
struct zram_stats stats;
/*
* the number of pages zram can consume for storing compressed data
*/
unsigned long limit_pages;
char compressor[10];
};
extern struct zram *zram_devices;
unsigned int zram_get_num_devices(void);
#ifdef CONFIG_SYSFS
extern struct attribute_group zram_disk_attr_group;
#endif
extern void zram_reset_device(struct zram *zram);
extern struct zram_meta *zram_meta_alloc(u64 disksize);
extern void zram_meta_free(struct zram_meta *meta);
extern void zram_init_device(struct zram *zram, struct zram_meta *meta);
#endif

4
drivers/bluetooth/ath3k.c
View File

@ -77,6 +77,8 @@ static struct usb_device_id ath3k_table[] = {
{ USB_DEVICE(0x0CF3, 0x3004) },
{ USB_DEVICE(0x0CF3, 0x3008) },
{ USB_DEVICE(0x0CF3, 0x311D) },
{ USB_DEVICE(0x0CF3, 0x311E) },
{ USB_DEVICE(0x0CF3, 0x311F) },
{ USB_DEVICE(0x0CF3, 0x817a) },
{ USB_DEVICE(0x13d3, 0x3375) },
{ USB_DEVICE(0x04CA, 0x3004) },
@ -120,6 +122,8 @@ static struct usb_device_id ath3k_blist_tbl[] = {
{ USB_DEVICE(0x0cf3, 0x3004), .driver_info = BTUSB_ATH3012 },
{ USB_DEVICE(0x0cf3, 0x3008), .driver_info = BTUSB_ATH3012 },
{ USB_DEVICE(0x0cf3, 0x311D), .driver_info = BTUSB_ATH3012 },
{ USB_DEVICE(0x0cf3, 0x311E), .driver_info = BTUSB_ATH3012 },
{ USB_DEVICE(0x0cf3, 0x311F), .driver_info = BTUSB_ATH3012 },
{ USB_DEVICE(0x0CF3, 0x817a), .driver_info = BTUSB_ATH3012 },
{ USB_DEVICE(0x13d3, 0x3375), .driver_info = BTUSB_ATH3012 },
{ USB_DEVICE(0x04ca, 0x3004), .driver_info = BTUSB_ATH3012 },

13
drivers/bluetooth/btusb.c
View File

@ -49,6 +49,7 @@ static struct usb_driver btusb_driver;
#define BTUSB_WRONG_SCO_MTU 0x40
#define BTUSB_ATH3012 0x80
#define BTUSB_INTEL 0x100
#define BTUSB_INTEL_BOOT 0x200
static struct usb_device_id btusb_table[] = {
/* Generic Bluetooth USB device */
@ -113,6 +114,13 @@ static struct usb_device_id btusb_table[] = {
/*Broadcom devices with vendor specific id */
{ USB_VENDOR_AND_INTERFACE_INFO(0x0a5c, 0xff, 0x01, 0x01) },
/* IMC Networks - Broadcom based */
{ USB_VENDOR_AND_INTERFACE_INFO(0x13d3, 0xff, 0x01, 0x01) },
/* Intel Bluetooth USB Bootloader (RAM module) */
{ USB_DEVICE(0x8087, 0x0a5a),
.driver_info = BTUSB_INTEL_BOOT | BTUSB_BROKEN_ISOC },
{ } /* Terminating entry */
};
@ -141,6 +149,8 @@ static struct usb_device_id blacklist_table[] = {
{ USB_DEVICE(0x0cf3, 0x3004), .driver_info = BTUSB_ATH3012 },
{ USB_DEVICE(0x0cf3, 0x3008), .driver_info = BTUSB_ATH3012 },
{ USB_DEVICE(0x0cf3, 0x311d), .driver_info = BTUSB_ATH3012 },
{ USB_DEVICE(0x0cf3, 0x311e), .driver_info = BTUSB_ATH3012 },
{ USB_DEVICE(0x0cf3, 0x311f), .driver_info = BTUSB_ATH3012 },
{ USB_DEVICE(0x0cf3, 0x817a), .driver_info = BTUSB_ATH3012 },
{ USB_DEVICE(0x13d3, 0x3375), .driver_info = BTUSB_ATH3012 },
{ USB_DEVICE(0x04ca, 0x3004), .driver_info = BTUSB_ATH3012 },
@ -1444,6 +1454,9 @@ static int btusb_probe(struct usb_interface *intf,
if (id->driver_info & BTUSB_INTEL)
hdev->setup = btusb_setup_intel;
if (id->driver_info & BTUSB_INTEL_BOOT)
set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks);
/* Interface numbers are hardcoded in the specification */
data->isoc = usb_ifnum_to_if(data->udev, 1);

2
drivers/cpufreq/cpufreq_interactive.c
View File

@ -375,7 +375,7 @@ static void cpufreq_interactive_timer(unsigned long data)
spin_lock_irqsave(&pcpu->target_freq_lock, flags);
do_div(cputime_speedadj, delta_time);
loadadjfreq = (unsigned int)cputime_speedadj * 100;
cpu_load = loadadjfreq / pcpu->target_freq;
cpu_load = loadadjfreq / pcpu->policy->cur;
tunables->boosted = tunables->boost_val || now < tunables->boostpulse_endtime;
#ifdef CONFIG_ARCH_ROCKCHIP

1
drivers/dma/omap-dma.c
View File

@ -487,6 +487,7 @@ static int omap_dma_terminate_all(struct omap_chan *c)
* c->desc is NULL and exit.)
*/
if (c->desc) {
omap_dma_desc_free(&c->desc->vd);
c->desc = NULL;
/* Avoid stopping the dma twice */
if (!c->paused)

8
drivers/edac/sb_edac.c
View File

@ -270,8 +270,9 @@ static const u32 correrrthrsld[] = {
* sbridge structs
*/
#define NUM_CHANNELS 4
#define MAX_DIMMS 3 /* Max DIMMS per channel */
#define NUM_CHANNELS 4
#define MAX_DIMMS 3 /* Max DIMMS per channel */
#define CHANNEL_UNSPECIFIED 0xf /* Intel IA32 SDM 15-14 */
struct sbridge_info {
u32 mcmtr;
@ -1451,6 +1452,9 @@ static void sbridge_mce_output_error(struct mem_ctl_info *mci,
/* FIXME: need support for channel mask */
if (channel == CHANNEL_UNSPECIFIED)
channel = -1;
/* Call the helper to output message */
edac_mc_handle_error(tp_event, mci, core_err_cnt,
m->addr >> PAGE_SHIFT, m->addr & ~PAGE_MASK, 0,

0
drivers/gator/LICENSE → drivers/gator/COPYING
View File

18
drivers/gator/Makefile
View File

@ -63,6 +63,22 @@ gator-$(CONFIG_ARM) += gator_events_armv6.o \
gator-$(CONFIG_ARM64) +=
$(obj)/gator_main.o: $(obj)/gator_src_md5.h
clean-files := gator_src_md5.h
# Note, in the recipe below we use "cd $(srctree) && cd $(src)" rather than
# "cd $(srctree)/$(src)" because under DKMS $(src) is an absolute path, and we
# can't just use $(src) because for normal kernel builds this is relative to
# $(srctree)
chk_events.h = :
quiet_chk_events.h = echo ' CHK $@'
silent_chk_events.h = :
$(obj)/gator_src_md5.h: FORCE
@$($(quiet)chk_events.h)
$(Q)cd $(srctree) && cd $(src) ; $(CONFIG_SHELL) -c "echo 'static char *gator_src_md5 = \"'\`ls *.c *.h mali/*.h | grep -Ev '^(gator_src_md5\.c|gator\.mod\.c)$$' | LC_ALL=C sort | xargs cat | md5sum | cut -b 1-32\`'\";'" > $(abspath $@)
else
all:
@ -73,7 +89,7 @@ all:
$(error)
clean:
rm -f *.o .*.cmd modules.order Module.symvers gator.ko gator.mod.c
rm -f *.o .*.cmd gator_src_md5.h modules.order Module.symvers gator.ko gator.mod.c
rm -rf .tmp_versions
endif

41
drivers/gator/gator.h
View File

@ -1,5 +1,5 @@
/**
* Copyright (C) ARM Limited 2010-2014. All rights reserved.
* Copyright (C) ARM Limited 2010-2015. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
@ -21,25 +21,26 @@
#define GATOR_IKS_SUPPORT defined(CONFIG_BL_SWITCHER)
/* cpu ids */
#define ARM1136 0xb36
#define ARM1156 0xb56
#define ARM1176 0xb76
#define ARM11MPCORE 0xb02
#define CORTEX_A5 0xc05
#define CORTEX_A7 0xc07
#define CORTEX_A8 0xc08
#define CORTEX_A9 0xc09
#define CORTEX_A15 0xc0f
#define CORTEX_A17 0xc0e
#define SCORPION 0x00f
#define SCORPIONMP 0x02d
#define KRAITSIM 0x049
#define KRAIT 0x04d
#define KRAIT_S4_PRO 0x06f
#define CORTEX_A53 0xd03
#define CORTEX_A57 0xd07
#define AARCH64 0xd0f
#define OTHER 0xfff
#define ARM1136 0x41b36
#define ARM1156 0x41b56
#define ARM1176 0x41b76
#define ARM11MPCORE 0x41b02
#define CORTEX_A5 0x41c05
#define CORTEX_A7 0x41c07
#define CORTEX_A8 0x41c08
#define CORTEX_A9 0x41c09
#define CORTEX_A15 0x41c0f
#define CORTEX_A12 0x41c0d
#define CORTEX_A17 0x41c0e
#define SCORPION 0x5100f
#define SCORPIONMP 0x5102d
#define KRAITSIM 0x51049
#define KRAIT 0x5104d
#define KRAIT_S4_PRO 0x5106f
#define CORTEX_A53 0x41d03
#define CORTEX_A57 0x41d07
#define CORTEX_A72 0x41d08
#define OTHER 0xfffff
/* gpu enums */
#define MALI_4xx 1

2
drivers/gator/gator_annotate.c
View File

@ -1,5 +1,5 @@
/**
* Copyright (C) ARM Limited 2010-2014. All rights reserved.
* Copyright (C) ARM Limited 2010-2015. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as

2
drivers/gator/gator_annotate_kernel.c
View File

@ -1,5 +1,5 @@
/**
* Copyright (C) ARM Limited 2012-2014. All rights reserved.
* Copyright (C) ARM Limited 2012-2015. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as

2
drivers/gator/gator_backtrace.c
View File

@ -1,5 +1,5 @@
/**
* Copyright (C) ARM Limited 2010-2014. All rights reserved.
* Copyright (C) ARM Limited 2010-2015. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as

2
drivers/gator/gator_buffer.c
View File

@ -1,5 +1,5 @@
/**
* Copyright (C) ARM Limited 2010-2014. All rights reserved.
* Copyright (C) ARM Limited 2010-2015. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as

2
drivers/gator/gator_buffer_write.c
View File

@ -1,5 +1,5 @@
/**
* Copyright (C) ARM Limited 2010-2014. All rights reserved.
* Copyright (C) ARM Limited 2010-2015. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as

2
drivers/gator/gator_cookies.c
View File

@ -1,5 +1,5 @@
/**
* Copyright (C) ARM Limited 2010-2014. All rights reserved.
* Copyright (C) ARM Limited 2010-2015. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as

2
drivers/gator/gator_events_armv6.c
View File

@ -1,5 +1,5 @@
/**
* Copyright (C) ARM Limited 2010-2014. All rights reserved.
* Copyright (C) ARM Limited 2010-2015. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as

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