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Merge branch 'rpi-3.12.y' of https://github.com/raspberrypi/linux into HEAD

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This commit is contained in:
Mauro Ribeiro
2014-09-18 09:11:12 -03:00
parent 26f52fa70f f3b65a0289
commit e32f5bedfb
324 changed files with 6685 additions and 1652 deletions
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37
Documentation/DMA-API-HOWTO.txt
View File

@@ -101,14 +101,23 @@ style to do this even if your device holds the default setting,
because this shows that you did think about these issues wrt. your
device.
The query is performed via a call to dma_set_mask():
The query is performed via a call to dma_set_mask_and_coherent():
int dma_set_mask(struct device *dev, u64 mask);
int dma_set_mask_and_coherent(struct device *dev, u64 mask);
The query for consistent allocations is performed via a call to
dma_set_coherent_mask():
which will query the mask for both streaming and coherent APIs together.
If you have some special requirements, then the following two separate
queries can be used instead:
int dma_set_coherent_mask(struct device *dev, u64 mask);
The query for streaming mappings is performed via a call to
dma_set_mask():
int dma_set_mask(struct device *dev, u64 mask);
The query for consistent allocations is performed via a call
to dma_set_coherent_mask():
int dma_set_coherent_mask(struct device *dev, u64 mask);
Here, dev is a pointer to the device struct of your device, and mask
is a bit mask describing which bits of an address your device
@@ -137,7 +146,7 @@ exactly why.
The standard 32-bit addressing device would do something like this:
if (dma_set_mask(dev, DMA_BIT_MASK(32))) {
if (dma_set_mask_and_coherent(dev, DMA_BIT_MASK(32))) {
printk(KERN_WARNING
"mydev: No suitable DMA available.\n");
goto ignore_this_device;
@@ -171,22 +180,20 @@ the case would look like this:
int using_dac, consistent_using_dac;
if (!dma_set_mask(dev, DMA_BIT_MASK(64))) {
if (!dma_set_mask_and_coherent(dev, DMA_BIT_MASK(64))) {
using_dac = 1;
consistent_using_dac = 1;
dma_set_coherent_mask(dev, DMA_BIT_MASK(64));
} else if (!dma_set_mask(dev, DMA_BIT_MASK(32))) {
} else if (!dma_set_mask_and_coherent(dev, DMA_BIT_MASK(32))) {
using_dac = 0;
consistent_using_dac = 0;
dma_set_coherent_mask(dev, DMA_BIT_MASK(32));
} else {
printk(KERN_WARNING
"mydev: No suitable DMA available.\n");
goto ignore_this_device;
}
dma_set_coherent_mask() will always be able to set the same or a
smaller mask as dma_set_mask(). However for the rare case that a
The coherent coherent mask will always be able to set the same or a
smaller mask as the streaming mask. However for the rare case that a
device driver only uses consistent allocations, one would have to
check the return value from dma_set_coherent_mask().
@@ -199,9 +206,9 @@ address you might do something like:
goto ignore_this_device;
}
When dma_set_mask() is successful, and returns zero, the kernel saves
away this mask you have provided. The kernel will use this
information later when you make DMA mappings.
When dma_set_mask() or dma_set_mask_and_coherent() is successful, and
returns zero, the kernel saves away this mask you have provided. The
kernel will use this information later when you make DMA mappings.
There is a case which we are aware of at this time, which is worth
mentioning in this documentation. If your device supports multiple

8
Documentation/DMA-API.txt
View File

@@ -141,6 +141,14 @@ won't change the current mask settings. It is more intended as an
internal API for use by the platform than an external API for use by
driver writers.
int
dma_set_mask_and_coherent(struct device *dev, u64 mask)
Checks to see if the mask is possible and updates the device
streaming and coherent DMA mask parameters if it is.
Returns: 0 if successful and a negative error if not.
int
dma_set_mask(struct device *dev, u64 mask)

4
Documentation/sound/alsa/ALSA-Configuration.txt
View File

@@ -2026,8 +2026,8 @@ Prior to version 0.9.0rc4 options had a 'snd_' prefix. This was removed.
-------------------
Module for sound cards based on the Asus AV66/AV100/AV200 chips,
i.e., Xonar D1, DX, D2, D2X, DS, Essence ST (Deluxe), Essence STX,
HDAV1.3 (Deluxe), and HDAV1.3 Slim.
i.e., Xonar D1, DX, D2, D2X, DS, DSX, Essence ST (Deluxe),
Essence STX (II), HDAV1.3 (Deluxe), and HDAV1.3 Slim.
This module supports autoprobe and multiple cards.

2
Documentation/x86/x86_64/mm.txt
View File

@@ -12,6 +12,8 @@ ffffc90000000000 - ffffe8ffffffffff (=45 bits) vmalloc/ioremap space
ffffe90000000000 - ffffe9ffffffffff (=40 bits) hole
ffffea0000000000 - ffffeaffffffffff (=40 bits) virtual memory map (1TB)
... unused hole ...
ffffff0000000000 - ffffff7fffffffff (=39 bits) %esp fixup stacks
... unused hole ...
ffffffff80000000 - ffffffffa0000000 (=512 MB) kernel text mapping, from phys 0
ffffffffa0000000 - ffffffffff5fffff (=1525 MB) module mapping space
ffffffffff600000 - ffffffffffdfffff (=8 MB) vsyscalls

4
Makefile
View File

@@ -1,6 +1,6 @@
VERSION = 3
PATCHLEVEL = 12
SUBLEVEL = 25
SUBLEVEL = 28
EXTRAVERSION =
NAME = One Giant Leap for Frogkind
@@ -614,6 +614,8 @@ KBUILD_CFLAGS += -fomit-frame-pointer
endif
endif
KBUILD_CFLAGS += $(call cc-option, -fno-var-tracking-assignments)
ifdef CONFIG_DEBUG_INFO
KBUILD_CFLAGS += -g
KBUILD_AFLAGS += -gdwarf-2

1
arch/arc/include/uapi/asm/ptrace.h
View File

@@ -11,6 +11,7 @@
#ifndef _UAPI__ASM_ARC_PTRACE_H
#define _UAPI__ASM_ARC_PTRACE_H
#define PTRACE_GET_THREAD_AREA 25
#ifndef __ASSEMBLY__
/*

4
arch/arc/kernel/ptrace.c
View File

@@ -146,6 +146,10 @@ long arch_ptrace(struct task_struct *child, long request,
pr_debug("REQ=%ld: ADDR =0x%lx, DATA=0x%lx)\n", request, addr, data);
switch (request) {
case PTRACE_GET_THREAD_AREA:
ret = put_user(task_thread_info(child)->thr_ptr,
(unsigned long __user *)data);
break;
default:
ret = ptrace_request(child, request, addr, data);
break;

1
arch/arm/Kconfig
View File

@@ -5,6 +5,7 @@ config ARM
select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE
select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST
select ARCH_HAVE_CUSTOM_GPIO_H
select ARCH_SUPPORTS_ATOMIC_RMW
select ARCH_WANT_IPC_PARSE_VERSION
select BUILDTIME_EXTABLE_SORT if MMU
select CLONE_BACKWARDS

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

@@ -30,6 +30,7 @@
spi2 = &spi3;
usb0 = &usbotg;
usb1 = &usbhost1;
ethernet0 = &fec;
};
cpus {

1
arch/arm/boot/dts/imx27.dtsi
View File

@@ -30,6 +30,7 @@
spi0 = &cspi1;
spi1 = &cspi2;
spi2 = &cspi3;
ethernet0 = &fec;
};
aitc: aitc-interrupt-controller@e0000000 {

1
arch/arm/boot/dts/imx51.dtsi
View File

@@ -27,6 +27,7 @@
spi0 = &ecspi1;
spi1 = &ecspi2;
spi2 = &cspi;
ethernet0 = &fec;
};
tzic: tz-interrupt-controller@e0000000 {

1
arch/arm/boot/dts/imx53.dtsi
View File

@@ -33,6 +33,7 @@
spi0 = &ecspi1;
spi1 = &ecspi2;
spi2 = &cspi;
ethernet0 = &fec;
};
cpus {

132
arch/arm/configs/bcmrpi_cutdown_defconfig
View File

@@ -1,7 +1,8 @@
CONFIG_EXPERIMENTAL=y
# CONFIG_LOCALVERSION_AUTO is not set
CONFIG_SYSVIPC=y
CONFIG_POSIX_MQUEUE=y
CONFIG_NO_HZ=y
CONFIG_HIGH_RES_TIMERS=y
CONFIG_IKCONFIG=y
CONFIG_IKCONFIG_PROC=y
# CONFIG_UID16 is not set
@@ -15,9 +16,9 @@ CONFIG_MODULE_UNLOAD=y
CONFIG_MODVERSIONS=y
CONFIG_MODULE_SRCVERSION_ALL=y
# CONFIG_BLK_DEV_BSG is not set
CONFIG_PARTITION_ADVANCED=y
CONFIG_MAC_PARTITION=y
CONFIG_ARCH_BCM2708=y
CONFIG_NO_HZ=y
CONFIG_HIGH_RES_TIMERS=y
CONFIG_AEABI=y
CONFIG_ZBOOT_ROM_TEXT=0x0
CONFIG_ZBOOT_ROM_BSS=0x0
@@ -57,8 +58,6 @@ CONFIG_USB_IRDA=m
CONFIG_SIGMATEL_FIR=m
CONFIG_MCS_FIR=m
CONFIG_BT=m
CONFIG_BT_L2CAP=y
CONFIG_BT_SCO=y
CONFIG_BT_RFCOMM=m
CONFIG_BT_RFCOMM_TTY=y
CONFIG_BT_BNEP=m
@@ -87,7 +86,6 @@ CONFIG_BLK_DEV_CRYPTOLOOP=m
CONFIG_BLK_DEV_NBD=m
CONFIG_BLK_DEV_RAM=y
CONFIG_CDROM_PKTCDVD=m
CONFIG_MISC_DEVICES=y
CONFIG_SCSI=y
# CONFIG_SCSI_PROC_FS is not set
CONFIG_BLK_DEV_SD=m
@@ -95,44 +93,16 @@ CONFIG_BLK_DEV_SR=m
CONFIG_SCSI_MULTI_LUN=y
# CONFIG_SCSI_LOWLEVEL is not set
CONFIG_NETDEVICES=y
CONFIG_NETCONSOLE=m
CONFIG_TUN=m
CONFIG_PHYLIB=m
CONFIG_MDIO_BITBANG=m
CONFIG_NET_ETHERNET=y
# CONFIG_NETDEV_1000 is not set
# CONFIG_NETDEV_10000 is not set
CONFIG_LIBERTAS_THINFIRM=m
CONFIG_LIBERTAS_THINFIRM_USB=m
CONFIG_AT76C50X_USB=m
CONFIG_USB_ZD1201=m
CONFIG_USB_NET_RNDIS_WLAN=m
CONFIG_RTL8187=m
CONFIG_MAC80211_HWSIM=m
CONFIG_ATH_COMMON=m
CONFIG_ATH9K=m
CONFIG_ATH9K_HTC=m
CONFIG_CARL9170=m
CONFIG_B43=m
CONFIG_B43LEGACY=m
CONFIG_HOSTAP=m
CONFIG_IWM=m
CONFIG_LIBERTAS=m
CONFIG_LIBERTAS_USB=m
CONFIG_LIBERTAS_SDIO=m
CONFIG_P54_COMMON=m
CONFIG_P54_USB=m
CONFIG_RT2X00=m
CONFIG_RT2500USB=m
CONFIG_RT73USB=m
CONFIG_RT2800USB=m
CONFIG_RT2800USB_RT53XX=y
CONFIG_RTL8192CU=m
CONFIG_WL1251=m
CONFIG_WL12XX_MENU=m
CONFIG_ZD1211RW=m
CONFIG_MWIFIEX=m
CONFIG_MWIFIEX_SDIO=m
CONFIG_WIMAX_I2400M_USB=m
CONFIG_PPP=m
CONFIG_PPP_BSDCOMP=m
CONFIG_PPP_DEFLATE=m
CONFIG_PPP_ASYNC=m
CONFIG_PPP_SYNC_TTY=m
CONFIG_SLIP=m
CONFIG_SLIP_COMPRESSED=y
CONFIG_USB_CATC=m
CONFIG_USB_KAWETH=m
CONFIG_USB_PEGASUS=m
@@ -159,14 +129,31 @@ CONFIG_USB_NET_INT51X1=m
CONFIG_USB_IPHETH=m
CONFIG_USB_SIERRA_NET=m
CONFIG_USB_VL600=m
CONFIG_PPP=m
CONFIG_PPP_ASYNC=m
CONFIG_PPP_SYNC_TTY=m
CONFIG_PPP_DEFLATE=m
CONFIG_PPP_BSDCOMP=m
CONFIG_SLIP=m
CONFIG_SLIP_COMPRESSED=y
CONFIG_NETCONSOLE=m
CONFIG_LIBERTAS_THINFIRM=m
CONFIG_LIBERTAS_THINFIRM_USB=m
CONFIG_AT76C50X_USB=m
CONFIG_USB_ZD1201=m
CONFIG_USB_NET_RNDIS_WLAN=m
CONFIG_RTL8187=m
CONFIG_MAC80211_HWSIM=m
CONFIG_B43=m
CONFIG_B43LEGACY=m
CONFIG_HOSTAP=m
CONFIG_LIBERTAS=m
CONFIG_LIBERTAS_USB=m
CONFIG_LIBERTAS_SDIO=m
CONFIG_P54_COMMON=m
CONFIG_P54_USB=m
CONFIG_RT2X00=m
CONFIG_RT2500USB=m
CONFIG_RT73USB=m
CONFIG_RT2800USB=m
CONFIG_RT2800USB_RT53XX=y
CONFIG_RTL8192CU=m
CONFIG_ZD1211RW=m
CONFIG_MWIFIEX=m
CONFIG_MWIFIEX_SDIO=m
CONFIG_WIMAX_I2400M_USB=m
CONFIG_INPUT_POLLDEV=m
# CONFIG_INPUT_MOUSEDEV_PSAUX is not set
CONFIG_INPUT_JOYDEV=m
@@ -175,7 +162,6 @@ CONFIG_INPUT_EVDEV=m
# CONFIG_INPUT_MOUSE is not set
CONFIG_INPUT_MISC=y
CONFIG_INPUT_AD714X=m
CONFIG_INPUT_ATI_REMOTE=m
CONFIG_INPUT_ATI_REMOTE2=m
CONFIG_INPUT_KEYSPAN_REMOTE=m
CONFIG_INPUT_POWERMATE=m
@@ -190,18 +176,21 @@ CONFIG_SERIO_RAW=m
CONFIG_GAMEPORT=m
CONFIG_GAMEPORT_NS558=m
CONFIG_GAMEPORT_L4=m
CONFIG_VT_HW_CONSOLE_BINDING=y
# CONFIG_LEGACY_PTYS is not set
# CONFIG_DEVKMEM is not set
CONFIG_SERIAL_AMBA_PL011=y
CONFIG_SERIAL_AMBA_PL011_CONSOLE=y
# CONFIG_HW_RANDOM is not set
CONFIG_RAW_DRIVER=y
CONFIG_I2C=y
CONFIG_I2C_CHARDEV=m
CONFIG_I2C_BCM2708=m
CONFIG_SPI=y
CONFIG_SPI_BCM2708=m
CONFIG_GPIO_SYSFS=y
# CONFIG_HWMON is not set
CONFIG_WATCHDOG=y
CONFIG_BCM2708_WDT=m
# CONFIG_MFD_SUPPORT is not set
CONFIG_FB=y
CONFIG_FB_BCM2708=y
CONFIG_FRAMEBUFFER_CONSOLE=y
@@ -228,8 +217,6 @@ CONFIG_SND_USB_UA101=m
CONFIG_SND_USB_CAIAQ=m
CONFIG_SND_USB_6FIRE=m
CONFIG_SOUND_PRIME=m
CONFIG_HID_PID=y
CONFIG_USB_HIDDEV=y
CONFIG_HID_A4TECH=m
CONFIG_HID_ACRUX=m
CONFIG_HID_APPLE=m
@@ -260,20 +247,18 @@ CONFIG_HID_ORTEK=m
CONFIG_HID_PANTHERLORD=m
CONFIG_HID_PETALYNX=m
CONFIG_HID_PICOLCD=m
CONFIG_HID_QUANTA=m
CONFIG_HID_ROCCAT=m
CONFIG_HID_SAMSUNG=m
CONFIG_HID_SONY=m
CONFIG_HID_SPEEDLINK=m
CONFIG_HID_SUNPLUS=m
CONFIG_HID_GREENASIA=m
CONFIG_HID_SMARTJOYPLUS=m
CONFIG_HID_TOPSEED=m
CONFIG_HID_THRUSTMASTER=m
CONFIG_HID_WACOM=m
CONFIG_HID_WIIMOTE=m
CONFIG_HID_ZEROPLUS=m
CONFIG_HID_ZYDACRON=m
CONFIG_HID_PID=y
CONFIG_USB_HIDDEV=y
CONFIG_USB=y
CONFIG_USB_ANNOUNCE_NEW_DEVICES=y
CONFIG_USB_MON=m
@@ -292,8 +277,6 @@ CONFIG_USB_STORAGE_ONETOUCH=m
CONFIG_USB_STORAGE_KARMA=m
CONFIG_USB_STORAGE_CYPRESS_ATACB=m
CONFIG_USB_STORAGE_ENE_UB6250=m
CONFIG_USB_UAS=m
CONFIG_USB_LIBUSUAL=y
CONFIG_USB_MDC800=m
CONFIG_USB_MICROTEK=m
CONFIG_USB_SERIAL=m
@@ -308,7 +291,6 @@ CONFIG_USB_SERIAL_CP210X=m
CONFIG_USB_SERIAL_CYPRESS_M8=m
CONFIG_USB_SERIAL_EMPEG=m
CONFIG_USB_SERIAL_FTDI_SIO=m
CONFIG_USB_SERIAL_FUNSOFT=m
CONFIG_USB_SERIAL_VISOR=m
CONFIG_USB_SERIAL_IPAQ=m
CONFIG_USB_SERIAL_IR=m
@@ -324,16 +306,13 @@ CONFIG_USB_SERIAL_KOBIL_SCT=m
CONFIG_USB_SERIAL_MCT_U232=m
CONFIG_USB_SERIAL_MOS7720=m
CONFIG_USB_SERIAL_MOS7840=m
CONFIG_USB_SERIAL_MOTOROLA=m
CONFIG_USB_SERIAL_NAVMAN=m
CONFIG_USB_SERIAL_PL2303=m
CONFIG_USB_SERIAL_OTI6858=m
CONFIG_USB_SERIAL_QCAUX=m
CONFIG_USB_SERIAL_QUALCOMM=m
CONFIG_USB_SERIAL_SPCP8X5=m
CONFIG_USB_SERIAL_HP4X=m
CONFIG_USB_SERIAL_SAFE=m
CONFIG_USB_SERIAL_SIEMENS_MPI=m
CONFIG_USB_SERIAL_SIERRAWIRELESS=m
CONFIG_USB_SERIAL_SYMBOL=m
CONFIG_USB_SERIAL_TI=m
@@ -342,8 +321,6 @@ CONFIG_USB_SERIAL_XIRCOM=m
CONFIG_USB_SERIAL_OPTION=m
CONFIG_USB_SERIAL_OMNINET=m
CONFIG_USB_SERIAL_OPTICON=m
CONFIG_USB_SERIAL_VIVOPAY_SERIAL=m
CONFIG_USB_SERIAL_ZIO=m
CONFIG_USB_SERIAL_SSU100=m
CONFIG_USB_SERIAL_DEBUG=m
CONFIG_USB_EMI62=m
@@ -370,12 +347,9 @@ CONFIG_MMC_SDHCI=y
CONFIG_MMC_SDHCI_PLTFM=y
CONFIG_MMC_SDHCI_BCM2708=y
CONFIG_MMC_SDHCI_BCM2708_DMA=y
CONFIG_LEDS_GPIO=y
CONFIG_LEDS_TRIGGER_TIMER=m
CONFIG_LEDS_TRIGGER_HEARTBEAT=m
CONFIG_LEDS_TRIGGER_DEFAULT_ON=m
CONFIG_MMC_BCM2835=y
CONFIG_MMC_BCM2835_DMA=y
CONFIG_UIO=m
CONFIG_UIO_PDRV=m
CONFIG_UIO_PDRV_GENIRQ=m
# CONFIG_IOMMU_SUPPORT is not set
CONFIG_EXT4_FS=y
@@ -418,7 +392,6 @@ CONFIG_SQUASHFS_XATTR=y
CONFIG_SQUASHFS_LZO=y
CONFIG_SQUASHFS_XZ=y
CONFIG_NFS_FS=y
CONFIG_NFS_V3=y
CONFIG_NFS_V3_ACL=y
CONFIG_NFS_V4=y
CONFIG_ROOT_NFS=y
@@ -428,9 +401,6 @@ CONFIG_CIFS_WEAK_PW_HASH=y
CONFIG_CIFS_XATTR=y
CONFIG_CIFS_POSIX=y
CONFIG_9P_FS=m
CONFIG_PARTITION_ADVANCED=y
CONFIG_MAC_PARTITION=y
CONFIG_EFI_PARTITION=y
CONFIG_NLS_DEFAULT="utf8"
CONFIG_NLS_CODEPAGE_437=y
CONFIG_NLS_CODEPAGE_737=m
@@ -481,7 +451,6 @@ CONFIG_CRYPTO_HMAC=y
CONFIG_CRYPTO_XCBC=m
CONFIG_CRYPTO_MD5=y
CONFIG_CRYPTO_SHA1=y
CONFIG_CRYPTO_SHA256=m
CONFIG_CRYPTO_SHA512=m
CONFIG_CRYPTO_TGR192=m
CONFIG_CRYPTO_WP512=m
@@ -492,12 +461,3 @@ CONFIG_CRYPTO_DEFLATE=m
# CONFIG_CRYPTO_HW is not set
CONFIG_CRC_ITU_T=y
CONFIG_LIBCRC32C=y
CONFIG_I2C=y
CONFIG_I2C_BOARDINFO=y
CONFIG_I2C_COMPAT=y
CONFIG_I2C_CHARDEV=m
CONFIG_I2C_HELPER_AUTO=y
CONFIG_I2C_BCM2708=m
CONFIG_SPI=y
CONFIG_SPI_MASTER=y
CONFIG_SPI_BCM2708=m

8
arch/arm/configs/bcmrpi_defconfig
View File

@@ -752,9 +752,12 @@ CONFIG_SND_USB_6FIRE=m
CONFIG_SND_SOC=m
CONFIG_SND_BCM2708_SOC_I2S=m
CONFIG_SND_BCM2708_SOC_HIFIBERRY_DAC=m
CONFIG_SND_BCM2708_SOC_HIFIBERRY_DACPLUS=m
CONFIG_SND_BCM2708_SOC_HIFIBERRY_DIGI=m
CONFIG_SND_BCM2708_SOC_HIFIBERRY_AMP=m
CONFIG_SND_BCM2708_SOC_RPI_DAC=m
CONFIG_SND_BCM2708_SOC_IQAUDIO_DAC=m
CONFIG_SND_SIMPLE_CARD=m
CONFIG_SOUND_PRIME=m
CONFIG_HIDRAW=y
CONFIG_HID_A4TECH=m
@@ -767,6 +770,7 @@ CONFIG_HID_CYPRESS=m
CONFIG_HID_DRAGONRISE=m
CONFIG_HID_EMS_FF=m
CONFIG_HID_ELECOM=m
CONFIG_HID_ELO=m
CONFIG_HID_EZKEY=m
CONFIG_HID_HOLTEK=m
CONFIG_HID_KEYTOUCH=m
@@ -900,6 +904,8 @@ CONFIG_MMC_SDHCI=y
CONFIG_MMC_SDHCI_PLTFM=y
CONFIG_MMC_SDHCI_BCM2708=y
CONFIG_MMC_SDHCI_BCM2708_DMA=y
CONFIG_MMC_BCM2835=y
CONFIG_MMC_BCM2835_DMA=y
CONFIG_MMC_SPI=m
CONFIG_LEDS_GPIO=m
CONFIG_LEDS_TRIGGER_TIMER=y
@@ -945,7 +951,7 @@ CONFIG_RTC_DRV_DS3234=m
CONFIG_RTC_DRV_PCF2123=m
CONFIG_RTC_DRV_RX4581=m
CONFIG_DMADEVICES=y
CONFIG_DMA_BCM2708=m
CONFIG_DMA_BCM2708=y
CONFIG_UIO=m
CONFIG_UIO_PDRV_GENIRQ=m
CONFIG_STAGING=y

135
arch/arm/configs/bcmrpi_emergency_defconfig
View File

@@ -1,15 +1,14 @@
CONFIG_EXPERIMENTAL=y
# CONFIG_LOCALVERSION_AUTO is not set
CONFIG_SYSVIPC=y
CONFIG_POSIX_MQUEUE=y
CONFIG_BSD_PROCESS_ACCT=y
CONFIG_BSD_PROCESS_ACCT_V3=y
CONFIG_FHANDLE=y
CONFIG_AUDIT=y
CONFIG_NO_HZ=y
CONFIG_HIGH_RES_TIMERS=y
CONFIG_BSD_PROCESS_ACCT=y
CONFIG_BSD_PROCESS_ACCT_V3=y
CONFIG_IKCONFIG=y
CONFIG_IKCONFIG_PROC=y
CONFIG_BLK_DEV_INITRD=y
CONFIG_INITRAMFS_SOURCE="../target_fs"
CONFIG_CGROUP_FREEZER=y
CONFIG_CGROUP_DEVICE=y
CONFIG_CGROUP_CPUACCT=y
@@ -17,6 +16,8 @@ CONFIG_RESOURCE_COUNTERS=y
CONFIG_BLK_CGROUP=y
CONFIG_NAMESPACES=y
CONFIG_SCHED_AUTOGROUP=y
CONFIG_BLK_DEV_INITRD=y
CONFIG_INITRAMFS_SOURCE="../target_fs"
CONFIG_EMBEDDED=y
# CONFIG_COMPAT_BRK is not set
CONFIG_SLAB=y
@@ -29,10 +30,10 @@ CONFIG_MODVERSIONS=y
CONFIG_MODULE_SRCVERSION_ALL=y
# CONFIG_BLK_DEV_BSG is not set
CONFIG_BLK_DEV_THROTTLING=y
CONFIG_PARTITION_ADVANCED=y
CONFIG_MAC_PARTITION=y
CONFIG_CFQ_GROUP_IOSCHED=y
CONFIG_ARCH_BCM2708=y
CONFIG_NO_HZ=y
CONFIG_HIGH_RES_TIMERS=y
CONFIG_AEABI=y
CONFIG_SECCOMP=y
CONFIG_CC_STACKPROTECTOR=y
@@ -75,8 +76,6 @@ CONFIG_USB_IRDA=m
CONFIG_SIGMATEL_FIR=m
CONFIG_MCS_FIR=m
CONFIG_BT=m
CONFIG_BT_L2CAP=y
CONFIG_BT_SCO=y
CONFIG_BT_RFCOMM=m
CONFIG_BT_RFCOMM_TTY=y
CONFIG_BT_BNEP=m
@@ -105,7 +104,6 @@ CONFIG_BLK_DEV_CRYPTOLOOP=m
CONFIG_BLK_DEV_NBD=m
CONFIG_BLK_DEV_RAM=y
CONFIG_CDROM_PKTCDVD=m
CONFIG_MISC_DEVICES=y
CONFIG_SCSI=y
# CONFIG_SCSI_PROC_FS is not set
CONFIG_BLK_DEV_SD=y
@@ -114,44 +112,16 @@ CONFIG_SCSI_MULTI_LUN=y
# CONFIG_SCSI_LOWLEVEL is not set
CONFIG_MD=y
CONFIG_NETDEVICES=y
CONFIG_NETCONSOLE=m
CONFIG_TUN=m
CONFIG_PHYLIB=m
CONFIG_MDIO_BITBANG=m
CONFIG_NET_ETHERNET=y
# CONFIG_NETDEV_1000 is not set
# CONFIG_NETDEV_10000 is not set
CONFIG_LIBERTAS_THINFIRM=m
CONFIG_LIBERTAS_THINFIRM_USB=m
CONFIG_AT76C50X_USB=m
CONFIG_USB_ZD1201=m
CONFIG_USB_NET_RNDIS_WLAN=m
CONFIG_RTL8187=m
CONFIG_MAC80211_HWSIM=m
CONFIG_ATH_COMMON=m
CONFIG_ATH9K=m
CONFIG_ATH9K_HTC=m
CONFIG_CARL9170=m
CONFIG_B43=m
CONFIG_B43LEGACY=m
CONFIG_HOSTAP=m
CONFIG_IWM=m
CONFIG_LIBERTAS=m
CONFIG_LIBERTAS_USB=m
CONFIG_LIBERTAS_SDIO=m
CONFIG_P54_COMMON=m
CONFIG_P54_USB=m
CONFIG_RT2X00=m
CONFIG_RT2500USB=m
CONFIG_RT73USB=m
CONFIG_RT2800USB=m
CONFIG_RT2800USB_RT53XX=y
CONFIG_RTL8192CU=m
CONFIG_WL1251=m
CONFIG_WL12XX_MENU=m
CONFIG_ZD1211RW=m
CONFIG_MWIFIEX=m
CONFIG_MWIFIEX_SDIO=m
CONFIG_WIMAX_I2400M_USB=m
CONFIG_PPP=m
CONFIG_PPP_BSDCOMP=m
CONFIG_PPP_DEFLATE=m
CONFIG_PPP_ASYNC=m
CONFIG_PPP_SYNC_TTY=m
CONFIG_SLIP=m
CONFIG_SLIP_COMPRESSED=y
CONFIG_USB_CATC=m
CONFIG_USB_KAWETH=m
CONFIG_USB_PEGASUS=m
@@ -178,14 +148,31 @@ CONFIG_USB_NET_INT51X1=m
CONFIG_USB_IPHETH=m
CONFIG_USB_SIERRA_NET=m
CONFIG_USB_VL600=m
CONFIG_PPP=m
CONFIG_PPP_ASYNC=m
CONFIG_PPP_SYNC_TTY=m
CONFIG_PPP_DEFLATE=m
CONFIG_PPP_BSDCOMP=m
CONFIG_SLIP=m
CONFIG_SLIP_COMPRESSED=y
CONFIG_NETCONSOLE=m
CONFIG_LIBERTAS_THINFIRM=m
CONFIG_LIBERTAS_THINFIRM_USB=m
CONFIG_AT76C50X_USB=m
CONFIG_USB_ZD1201=m
CONFIG_USB_NET_RNDIS_WLAN=m
CONFIG_RTL8187=m
CONFIG_MAC80211_HWSIM=m
CONFIG_B43=m
CONFIG_B43LEGACY=m
CONFIG_HOSTAP=m
CONFIG_LIBERTAS=m
CONFIG_LIBERTAS_USB=m
CONFIG_LIBERTAS_SDIO=m
CONFIG_P54_COMMON=m
CONFIG_P54_USB=m
CONFIG_RT2X00=m
CONFIG_RT2500USB=m
CONFIG_RT73USB=m
CONFIG_RT2800USB=m
CONFIG_RT2800USB_RT53XX=y
CONFIG_RTL8192CU=m
CONFIG_ZD1211RW=m
CONFIG_MWIFIEX=m
CONFIG_MWIFIEX_SDIO=m
CONFIG_WIMAX_I2400M_USB=m
CONFIG_INPUT_POLLDEV=m
# CONFIG_INPUT_MOUSEDEV_PSAUX is not set
CONFIG_INPUT_JOYDEV=m
@@ -194,7 +181,6 @@ CONFIG_INPUT_EVDEV=m
# CONFIG_INPUT_MOUSE is not set
CONFIG_INPUT_MISC=y
CONFIG_INPUT_AD714X=m
CONFIG_INPUT_ATI_REMOTE=m
CONFIG_INPUT_ATI_REMOTE2=m
CONFIG_INPUT_KEYSPAN_REMOTE=m
CONFIG_INPUT_POWERMATE=m
@@ -209,7 +195,6 @@ CONFIG_SERIO_RAW=m
CONFIG_GAMEPORT=m
CONFIG_GAMEPORT_NS558=m
CONFIG_GAMEPORT_L4=m
CONFIG_VT_HW_CONSOLE_BINDING=y
# CONFIG_LEGACY_PTYS is not set
# CONFIG_DEVKMEM is not set
CONFIG_SERIAL_AMBA_PL011=y
@@ -220,7 +205,6 @@ CONFIG_GPIO_SYSFS=y
# CONFIG_HWMON is not set
CONFIG_WATCHDOG=y
CONFIG_BCM2708_WDT=m
# CONFIG_MFD_SUPPORT is not set
CONFIG_FB=y
CONFIG_FB_BCM2708=y
CONFIG_FRAMEBUFFER_CONSOLE=y
@@ -247,8 +231,6 @@ CONFIG_SND_USB_UA101=m
CONFIG_SND_USB_CAIAQ=m
CONFIG_SND_USB_6FIRE=m
CONFIG_SOUND_PRIME=m
CONFIG_HID_PID=y
CONFIG_USB_HIDDEV=y
CONFIG_HID_A4TECH=m
CONFIG_HID_ACRUX=m
CONFIG_HID_APPLE=m
@@ -279,20 +261,18 @@ CONFIG_HID_ORTEK=m
CONFIG_HID_PANTHERLORD=m
CONFIG_HID_PETALYNX=m
CONFIG_HID_PICOLCD=m
CONFIG_HID_QUANTA=m
CONFIG_HID_ROCCAT=m
CONFIG_HID_SAMSUNG=m
CONFIG_HID_SONY=m
CONFIG_HID_SPEEDLINK=m
CONFIG_HID_SUNPLUS=m
CONFIG_HID_GREENASIA=m
CONFIG_HID_SMARTJOYPLUS=m
CONFIG_HID_TOPSEED=m
CONFIG_HID_THRUSTMASTER=m
CONFIG_HID_WACOM=m
CONFIG_HID_WIIMOTE=m
CONFIG_HID_ZEROPLUS=m
CONFIG_HID_ZYDACRON=m
CONFIG_HID_PID=y
CONFIG_USB_HIDDEV=y
CONFIG_USB=y
CONFIG_USB_ANNOUNCE_NEW_DEVICES=y
CONFIG_USB_MON=m
@@ -311,8 +291,6 @@ CONFIG_USB_STORAGE_ONETOUCH=m
CONFIG_USB_STORAGE_KARMA=m
CONFIG_USB_STORAGE_CYPRESS_ATACB=m
CONFIG_USB_STORAGE_ENE_UB6250=m
CONFIG_USB_UAS=y
CONFIG_USB_LIBUSUAL=y
CONFIG_USB_MDC800=m
CONFIG_USB_MICROTEK=m
CONFIG_USB_SERIAL=m
@@ -327,7 +305,6 @@ CONFIG_USB_SERIAL_CP210X=m
CONFIG_USB_SERIAL_CYPRESS_M8=m
CONFIG_USB_SERIAL_EMPEG=m
CONFIG_USB_SERIAL_FTDI_SIO=m
CONFIG_USB_SERIAL_FUNSOFT=m
CONFIG_USB_SERIAL_VISOR=m
CONFIG_USB_SERIAL_IPAQ=m
CONFIG_USB_SERIAL_IR=m
@@ -343,16 +320,13 @@ CONFIG_USB_SERIAL_KOBIL_SCT=m
CONFIG_USB_SERIAL_MCT_U232=m
CONFIG_USB_SERIAL_MOS7720=m
CONFIG_USB_SERIAL_MOS7840=m
CONFIG_USB_SERIAL_MOTOROLA=m
CONFIG_USB_SERIAL_NAVMAN=m
CONFIG_USB_SERIAL_PL2303=m
CONFIG_USB_SERIAL_OTI6858=m
CONFIG_USB_SERIAL_QCAUX=m
CONFIG_USB_SERIAL_QUALCOMM=m
CONFIG_USB_SERIAL_SPCP8X5=m
CONFIG_USB_SERIAL_HP4X=m
CONFIG_USB_SERIAL_SAFE=m
CONFIG_USB_SERIAL_SIEMENS_MPI=m
CONFIG_USB_SERIAL_SIERRAWIRELESS=m
CONFIG_USB_SERIAL_SYMBOL=m
CONFIG_USB_SERIAL_TI=m
@@ -361,8 +335,6 @@ CONFIG_USB_SERIAL_XIRCOM=m
CONFIG_USB_SERIAL_OPTION=m
CONFIG_USB_SERIAL_OMNINET=m
CONFIG_USB_SERIAL_OPTICON=m
CONFIG_USB_SERIAL_VIVOPAY_SERIAL=m
CONFIG_USB_SERIAL_ZIO=m
CONFIG_USB_SERIAL_SSU100=m
CONFIG_USB_SERIAL_DEBUG=m
CONFIG_USB_EMI62=m
@@ -389,12 +361,9 @@ CONFIG_MMC_SDHCI=y
CONFIG_MMC_SDHCI_PLTFM=y
CONFIG_MMC_SDHCI_BCM2708=y
CONFIG_MMC_SDHCI_BCM2708_DMA=y
CONFIG_LEDS_GPIO=y
CONFIG_LEDS_TRIGGER_TIMER=m
CONFIG_LEDS_TRIGGER_HEARTBEAT=m
CONFIG_LEDS_TRIGGER_DEFAULT_ON=m
CONFIG_MMC_BCM2835=y
CONFIG_MMC_BCM2835_DMA=y
CONFIG_UIO=m
CONFIG_UIO_PDRV=m
CONFIG_UIO_PDRV_GENIRQ=m
# CONFIG_IOMMU_SUPPORT is not set
CONFIG_EXT4_FS=y
@@ -441,7 +410,6 @@ CONFIG_SQUASHFS_XATTR=y
CONFIG_SQUASHFS_LZO=y
CONFIG_SQUASHFS_XZ=y
CONFIG_NFS_FS=y
CONFIG_NFS_V3=y
CONFIG_NFS_V3_ACL=y
CONFIG_NFS_V4=y
CONFIG_ROOT_NFS=y
@@ -452,9 +420,6 @@ CONFIG_CIFS_XATTR=y
CONFIG_CIFS_POSIX=y
CONFIG_9P_FS=m
CONFIG_9P_FS_POSIX_ACL=y
CONFIG_PARTITION_ADVANCED=y
CONFIG_MAC_PARTITION=y
CONFIG_EFI_PARTITION=y
CONFIG_NLS_DEFAULT="utf8"
CONFIG_NLS_CODEPAGE_437=y
CONFIG_NLS_CODEPAGE_737=m
@@ -495,14 +460,13 @@ CONFIG_NLS_KOI8_R=m
CONFIG_NLS_KOI8_U=m
CONFIG_NLS_UTF8=m
CONFIG_PRINTK_TIME=y
CONFIG_BOOT_PRINTK_DELAY=y
CONFIG_DEBUG_INFO=y
CONFIG_DEBUG_STACK_USAGE=y
CONFIG_DEBUG_MEMORY_INIT=y
CONFIG_DETECT_HUNG_TASK=y
CONFIG_TIMER_STATS=y
CONFIG_DEBUG_STACK_USAGE=y
CONFIG_DEBUG_INFO=y
CONFIG_DEBUG_MEMORY_INIT=y
CONFIG_BOOT_PRINTK_DELAY=y
CONFIG_LATENCYTOP=y
CONFIG_SYSCTL_SYSCALL_CHECK=y
CONFIG_IRQSOFF_TRACER=y
CONFIG_SCHED_TRACER=y
CONFIG_STACK_TRACER=y
@@ -519,7 +483,6 @@ CONFIG_CRYPTO_HMAC=y
CONFIG_CRYPTO_XCBC=m
CONFIG_CRYPTO_MD5=y
CONFIG_CRYPTO_SHA1=y
CONFIG_CRYPTO_SHA256=m
CONFIG_CRYPTO_SHA512=m
CONFIG_CRYPTO_TGR192=m
CONFIG_CRYPTO_WP512=m

3
arch/arm/configs/bcmrpi_quick_defconfig
View File

@@ -82,7 +82,6 @@ CONFIG_INPUT_EVDEV=y
# CONFIG_INPUT_KEYBOARD is not set
# CONFIG_INPUT_MOUSE is not set
# CONFIG_SERIO is not set
CONFIG_VT_HW_CONSOLE_BINDING=y
# CONFIG_LEGACY_PTYS is not set
# CONFIG_DEVKMEM is not set
CONFIG_SERIAL_AMBA_PL011=y
@@ -118,6 +117,8 @@ CONFIG_MMC_SDHCI=y
CONFIG_MMC_SDHCI_PLTFM=y
CONFIG_MMC_SDHCI_BCM2708=y
CONFIG_MMC_SDHCI_BCM2708_DMA=y
CONFIG_MMC_BCM2835=y
CONFIG_MMC_BCM2835_DMA=y
CONFIG_NEW_LEDS=y
CONFIG_LEDS_CLASS=y
CONFIG_LEDS_TRIGGERS=y

90
arch/arm/mach-bcm2708/bcm2708.c
View File

@@ -98,6 +98,8 @@ static unsigned disk_led_active_low = 1;
static unsigned reboot_part = 0;
static unsigned w1_gpio_pin = W1_GPIO;
static unsigned w1_gpio_pullup = W1_PULLUP;
static unsigned bcm2835_mmc = 1;
static bool vc_i2c_override = false;
static void __init bcm2708_init_led(void);
@@ -460,6 +462,34 @@ struct platform_device bcm2708_emmc_device = {
};
#endif /* CONFIG_MMC_SDHCI_BCM2708 */
#ifdef CONFIG_MMC_BCM2835 /* Arasan emmc SD (new) */
static struct resource bcm2835_emmc_resources[] = {
[0] = {
.start = EMMC_BASE,
.end = EMMC_BASE + SZ_256 - 1, /* we only need this area */
/* the memory map actually makes SZ_4K available */
.flags = IORESOURCE_MEM,
},
[1] = {
.start = IRQ_ARASANSDIO,
.end = IRQ_ARASANSDIO,
.flags = IORESOURCE_IRQ,
},
};
static u64 bcm2835_emmc_dmamask = 0xffffffffUL;
struct platform_device bcm2835_emmc_device = {
.name = "mmc-bcm2835",
.id = 0,
.num_resources = ARRAY_SIZE(bcm2835_emmc_resources),
.resource = bcm2835_emmc_resources,
.dev = {
.dma_mask = &bcm2835_emmc_dmamask,
.coherent_dma_mask = 0xffffffffUL},
};
#endif /* CONFIG_MMC_BCM2835 */
static struct resource bcm2708_powerman_resources[] = {
[0] = {
.start = PM_BASE,
@@ -659,6 +689,20 @@ static struct platform_device snd_pcm5102a_codec_device = {
};
#endif
#if defined(CONFIG_SND_BCM2708_SOC_HIFIBERRY_DACPLUS) || defined(CONFIG_SND_BCM2708_SOC_HIFIBERRY_DACPLUS_MODULE)
static struct platform_device snd_rpi_hifiberry_dacplus_device = {
.name = "snd-rpi-hifiberry-dacplus",
.id = 0,
.num_resources = 0,
};
static struct i2c_board_info __initdata snd_pcm512x_hbdacplus_i2c_devices[] = {
{
I2C_BOARD_INFO("pcm5122", 0x4d)
},
};
#endif
#if defined(CONFIG_SND_BCM2708_SOC_HIFIBERRY_DIGI) || defined(CONFIG_SND_BCM2708_SOC_HIFIBERRY_DIGI_MODULE)
static struct platform_device snd_hifiberry_digi_device = {
.name = "snd-hifiberry-digi",
@@ -674,6 +718,20 @@ static struct i2c_board_info __initdata snd_wm8804_i2c_devices[] = {
#endif
#if defined(CONFIG_SND_BCM2708_SOC_HIFIBERRY_AMP) || defined(CONFIG_SND_BCM2708_SOC_HIFIBERRY_AMP_MODULE)
static struct platform_device snd_hifiberry_amp_device = {
.name = "snd-hifiberry-amp",
.id = 0,
.num_resources = 0,
};
static struct i2c_board_info __initdata snd_tas5713_i2c_devices[] = {
{
I2C_BOARD_INFO("tas5713", 0x1b)
},
};
#endif
#if defined(CONFIG_SND_BCM2708_SOC_RPI_DAC) || defined(CONFIG_SND_BCM2708_SOC_RPI_DAC_MODULE)
static struct platform_device snd_rpi_dac_device = {
.name = "snd-rpi-dac",
@@ -1058,15 +1116,27 @@ void __init bcm2708_init(void)
bcm_register_device(&bcm2708_powerman_device);
#ifdef CONFIG_MMC_SDHCI_BCM2708
bcm_register_device(&bcm2708_emmc_device);
if (!bcm2835_mmc)
bcm_register_device(&bcm2708_emmc_device);
#endif
#ifdef CONFIG_MMC_BCM2835
if (bcm2835_mmc)
bcm_register_device(&bcm2835_emmc_device);
#endif
bcm2708_init_led();
for (i = 0; i < ARRAY_SIZE(bcm2708_alsa_devices); i++)
bcm_register_device(&bcm2708_alsa_devices[i]);
bcm_register_device(&bcm2708_spi_device);
bcm_register_device(&bcm2708_bsc0_device);
bcm_register_device(&bcm2708_bsc1_device);
if (vc_i2c_override) {
bcm_register_device(&bcm2708_bsc0_device);
bcm_register_device(&bcm2708_bsc1_device);
} else if ((boardrev & 0xffffff) == 0x2 || (boardrev & 0xffffff) == 0x3) {
bcm_register_device(&bcm2708_bsc0_device);
} else {
bcm_register_device(&bcm2708_bsc1_device);
}
bcm_register_device(&bcm2835_hwmon_device);
bcm_register_device(&bcm2835_thermal_device);
@@ -1080,11 +1150,22 @@ void __init bcm2708_init(void)
bcm_register_device(&snd_pcm5102a_codec_device);
#endif
#if defined(CONFIG_SND_BCM2708_SOC_HIFIBERRY_DACPLUS) || defined(CONFIG_SND_BCM2708_SOC_HIFIBERRY_DACPLUS_MODULE)
bcm_register_device(&snd_rpi_hifiberry_dacplus_device);
i2c_register_board_info(1, snd_pcm512x_hbdacplus_i2c_devices, ARRAY_SIZE(snd_pcm512x_hbdacplus_i2c_devices));
#endif
#if defined(CONFIG_SND_BCM2708_SOC_HIFIBERRY_DIGI) || defined(CONFIG_SND_BCM2708_SOC_HIFIBERRY_DIGI_MODULE)
bcm_register_device(&snd_hifiberry_digi_device);
i2c_register_board_info(1, snd_wm8804_i2c_devices, ARRAY_SIZE(snd_wm8804_i2c_devices));
#endif
#if defined(CONFIG_SND_BCM2708_SOC_HIFIBERRY_AMP) || defined(CONFIG_SND_BCM2708_SOC_HIFIBERRY_AMP_MODULE)
bcm_register_device(&snd_hifiberry_amp_device);
i2c_register_board_info(1, snd_tas5713_i2c_devices, ARRAY_SIZE(snd_tas5713_i2c_devices));
#endif
#if defined(CONFIG_SND_BCM2708_SOC_RPI_DAC) || defined(CONFIG_SND_BCM2708_SOC_RPI_DAC_MODULE)
bcm_register_device(&snd_rpi_dac_device);
bcm_register_device(&snd_pcm1794a_codec_device);
@@ -1285,3 +1366,6 @@ module_param(disk_led_active_low, uint, 0644);
module_param(reboot_part, uint, 0644);
module_param(w1_gpio_pin, uint, 0644);
module_param(w1_gpio_pullup, uint, 0644);
module_param(bcm2835_mmc, uint, 0644);
module_param(vc_i2c_override, bool, 0644);
MODULE_PARM_DESC(vc_i2c_override, "Allow the use of VC's I2C peripheral.");

56
arch/arm/mach-bcm2708/bcm2708_gpio.c
View File

@@ -56,10 +56,10 @@ struct bcm2708_gpio {
struct list_head list;
void __iomem *base;
struct gpio_chip gc;
unsigned long rising;
unsigned long falling;
unsigned long high;
unsigned long low;
unsigned long rising[(BCM2708_NR_GPIOS + 31) / 32];
unsigned long falling[(BCM2708_NR_GPIOS + 31) / 32];
unsigned long high[(BCM2708_NR_GPIOS + 31) / 32];
unsigned long low[(BCM2708_NR_GPIOS + 31) / 32];
};
static int bcm2708_set_function(struct gpio_chip *gc, unsigned offset,
@@ -146,23 +146,26 @@ static int bcm2708_gpio_irq_set_type(struct irq_data *d, unsigned type)
{
unsigned irq = d->irq;
struct bcm2708_gpio *gpio = irq_get_chip_data(irq);
unsigned gn = irq_to_gpio(irq);
unsigned gb = gn / 32;
unsigned go = gn % 32;
gpio->rising &= ~(1 << irq_to_gpio(irq));
gpio->falling &= ~(1 << irq_to_gpio(irq));
gpio->high &= ~(1 << irq_to_gpio(irq));
gpio->low &= ~(1 << irq_to_gpio(irq));
gpio->rising[gb] &= ~(1 << go);
gpio->falling[gb] &= ~(1 << go);
gpio->high[gb] &= ~(1 << go);
gpio->low[gb] &= ~(1 << go);
if (type & ~(IRQ_TYPE_EDGE_FALLING | IRQ_TYPE_EDGE_RISING | IRQ_TYPE_LEVEL_LOW | IRQ_TYPE_LEVEL_HIGH))
return -EINVAL;
if (type & IRQ_TYPE_EDGE_RISING)
gpio->rising |= (1 << irq_to_gpio(irq));
gpio->rising[gb] |= (1 << go);
if (type & IRQ_TYPE_EDGE_FALLING)
gpio->falling |= (1 << irq_to_gpio(irq));
gpio->falling[gb] |= (1 << go);
if (type & IRQ_TYPE_LEVEL_HIGH)
gpio->high |= (1 << irq_to_gpio(irq));
gpio->high[gb] |= (1 << go);
if (type & IRQ_TYPE_LEVEL_LOW)
gpio->low |= (1 << irq_to_gpio(irq));
gpio->low[gb] |= (1 << go);
return 0;
}
@@ -191,37 +194,36 @@ static void bcm2708_gpio_irq_unmask(struct irq_data *d)
struct bcm2708_gpio *gpio = irq_get_chip_data(irq);
unsigned gn = irq_to_gpio(irq);
unsigned gb = gn / 32;
unsigned go = gn % 32;
unsigned long rising = readl(gpio->base + GPIOREN(gb));
unsigned long falling = readl(gpio->base + GPIOFEN(gb));
unsigned long high = readl(gpio->base + GPIOHEN(gb));
unsigned long low = readl(gpio->base + GPIOLEN(gb));
gn = gn % 32;
writel(1 << go, gpio->base + GPIOEDS(gb));
writel(1 << gn, gpio->base + GPIOEDS(gb));
if (gpio->rising & (1 << gn)) {
writel(rising | (1 << gn), gpio->base + GPIOREN(gb));
if (gpio->rising[gb] & (1 << go)) {
writel(rising | (1 << go), gpio->base + GPIOREN(gb));
} else {
writel(rising & ~(1 << gn), gpio->base + GPIOREN(gb));
writel(rising & ~(1 << go), gpio->base + GPIOREN(gb));
}
if (gpio->falling & (1 << gn)) {
writel(falling | (1 << gn), gpio->base + GPIOFEN(gb));
if (gpio->falling[gb] & (1 << go)) {
writel(falling | (1 << go), gpio->base + GPIOFEN(gb));
} else {
writel(falling & ~(1 << gn), gpio->base + GPIOFEN(gb));
writel(falling & ~(1 << go), gpio->base + GPIOFEN(gb));
}
if (gpio->high & (1 << gn)) {
writel(high | (1 << gn), gpio->base + GPIOHEN(gb));
if (gpio->high[gb] & (1 << go)) {
writel(high | (1 << go), gpio->base + GPIOHEN(gb));
} else {
writel(high & ~(1 << gn), gpio->base + GPIOHEN(gb));
writel(high & ~(1 << go), gpio->base + GPIOHEN(gb));
}
if (gpio->low & (1 << gn)) {
writel(low | (1 << gn), gpio->base + GPIOLEN(gb));
if (gpio->low[gb] & (1 << go)) {
writel(low | (1 << go), gpio->base + GPIOLEN(gb));
} else {
writel(low & ~(1 << gn), gpio->base + GPIOLEN(gb));
writel(low & ~(1 << go), gpio->base + GPIOLEN(gb));
}
}

2
arch/arm/mach-bcm2708/dma.c
View File

@@ -156,6 +156,8 @@ static void vc_dmaman_init(struct vc_dmaman *dmaman, void __iomem *dma_base,
dmaman->chan_available = chans_available;
dmaman->has_feature[BCM_DMA_FEATURE_FAST_ORD] = 0x0c; /* chans 2 & 3 */
dmaman->has_feature[BCM_DMA_FEATURE_BULK_ORD] = 0x01; /* chan 0 */
dmaman->has_feature[BCM_DMA_FEATURE_NORMAL_ORD] = 0xfe; /* chans 1 to 7 */
dmaman->has_feature[BCM_DMA_FEATURE_LITE_ORD] = 0x7f00; /* chans 8 to 14 */
}
static int vc_dmaman_chan_alloc(struct vc_dmaman *dmaman,

2
arch/arm/mach-bcm2708/include/mach/arm_power.h
View File

@@ -38,6 +38,7 @@ enum {
PREFIX(POWER_I2C2_BIT),
PREFIX(POWER_SPI_BIT),
PREFIX(POWER_CCP2TX_BIT),
PREFIX(POWER_DSI_BIT),
PREFIX(POWER_MAX)
};
@@ -52,6 +53,7 @@ enum {
PREFIX(POWER_I2C2_MASK) = (1 << PREFIX(POWER_I2C2_BIT)),
PREFIX(POWER_SPI_MASK) = (1 << PREFIX(POWER_SPI_BIT)),
PREFIX(POWER_CCP2TX_MASK) = (1 << PREFIX(POWER_CCP2TX_BIT)),
PREFIX(POWER_DSI) = (1 << PREFIX(POWER_DSI_BIT)),
PREFIX(POWER_MASK) = (1 << PREFIX(POWER_MAX)) - 1,
PREFIX(POWER_NONE) = 0

6
arch/arm/mach-bcm2708/include/mach/dma.h
View File

@@ -77,9 +77,13 @@ extern int /*rc*/ bcm_dma_abort(void __iomem *dma_chan_base);
those with higher priority smaller ordinal numbers */
#define BCM_DMA_FEATURE_FAST_ORD 0
#define BCM_DMA_FEATURE_BULK_ORD 1
#define BCM_DMA_FEATURE_NORMAL_ORD 2
#define BCM_DMA_FEATURE_LITE_ORD 3
#define BCM_DMA_FEATURE_FAST (1<<BCM_DMA_FEATURE_FAST_ORD)
#define BCM_DMA_FEATURE_BULK (1<<BCM_DMA_FEATURE_BULK_ORD)
#define BCM_DMA_FEATURE_COUNT 2
#define BCM_DMA_FEATURE_NORMAL (1<<BCM_DMA_FEATURE_NORMAL_ORD)
#define BCM_DMA_FEATURE_LITE (1<<BCM_DMA_FEATURE_LITE_ORD)
#define BCM_DMA_FEATURE_COUNT 4
/* return channel no or -ve error */
extern int bcm_dma_chan_alloc(unsigned preferred_feature_set,

38
arch/arm/mach-bcm2708/include/mach/vcio.h
View File

@@ -33,17 +33,24 @@
#define MBOX_CHAN_PROPERTY 8 /* for use by the property channel */
#define MBOX_CHAN_COUNT 9
enum {
VCMSG_PROCESS_REQUEST = 0x00000000
};
enum {
VCMSG_REQUEST_SUCCESSFUL = 0x80000000,
VCMSG_REQUEST_FAILED = 0x80000001
};
/* Mailbox property tags */
enum {
VCMSG_PROPERTY_END = 0x00000000,
VCMSG_GET_FIRMWARE_REVISION = 0x00000001,
VCMSG_GET_BOARD_MODEL = 0x00010001,
VCMSG_GET_BOARD_REVISION = 0x00020002,
VCMSG_GET_BOARD_MAC_ADDRESS = 0x00020003,
VCMSG_GET_BOARD_SERIAL = 0x00020004,
VCMSG_GET_ARM_MEMORY = 0x00020005,
VCMSG_GET_VC_MEMORY = 0x00020006,
VCMSG_GET_CLOCKS = 0x00020007,
VCMSG_GET_BOARD_REVISION = 0x00010002,
VCMSG_GET_BOARD_MAC_ADDRESS = 0x00010003,
VCMSG_GET_BOARD_SERIAL = 0x00010004,
VCMSG_GET_ARM_MEMORY = 0x00010005,
VCMSG_GET_VC_MEMORY = 0x00010006,
VCMSG_GET_CLOCKS = 0x00010007,
VCMSG_GET_COMMAND_LINE = 0x00050001,
VCMSG_GET_DMA_CHANNELS = 0x00060001,
VCMSG_GET_POWER_STATE = 0x00020001,
@@ -61,7 +68,20 @@ enum {
VCMSG_GET_MIN_CLOCK = 0x00030007,
VCMSG_GET_MIN_VOLTAGE = 0x00030008,
VCMSG_GET_TURBO = 0x00030009,
VCMSG_GET_MAX_TEMPERATURE = 0x0003000a,
VCMSG_GET_STC = 0x0003000b,
VCMSG_SET_TURBO = 0x00038009,
VCMSG_SET_ALLOCATE_MEM = 0x0003000c,
VCMSG_SET_LOCK_MEM = 0x0003000d,
VCMSG_SET_UNLOCK_MEM = 0x0003000e,
VCMSG_SET_RELEASE_MEM = 0x0003000f,
VCMSG_SET_EXECUTE_CODE = 0x00030010,
VCMSG_SET_EXECUTE_QPU = 0x00030011,
VCMSG_SET_ENABLE_QPU = 0x00030012,
VCMSG_GET_RESOURCE_HANDLE = 0x00030014,
VCMSG_GET_EDID_BLOCK = 0x00030020,
VCMSG_GET_CUSTOMER_OTP = 0x00030021,
VCMSG_SET_CUSTOMER_OTP = 0x00038021,
VCMSG_SET_ALLOCATE_BUFFER = 0x00040001,
VCMSG_SET_RELEASE_BUFFER = 0x00048001,
VCMSG_SET_BLANK_SCREEN = 0x00040002,
@@ -99,6 +119,10 @@ enum {
VCMSG_GET_TRANSFORM = 0x0004000d,
VCMSG_TST_TRANSFORM = 0x0004400d,
VCMSG_SET_TRANSFORM = 0x0004800d,
VCMSG_TST_VSYNC = 0x0004400e,
VCMSG_SET_VSYNC = 0x0004800e,
VCMSG_SET_CURSOR_INFO = 0x00008010,
VCMSG_SET_CURSOR_STATE = 0x00008011,
};
extern int /*rc*/ bcm_mailbox_read(unsigned chan, uint32_t *data28);
@@ -136,6 +160,6 @@ extern int /*rc*/ bcm_mailbox_property(void *data, int size);
/*
* The name of the device file
*/
#define DEVICE_FILE_NAME "char_dev"
#define DEVICE_FILE_NAME "vcio"
#endif

3
arch/arm/mach-omap2/control.c
View File

@@ -324,7 +324,8 @@ void omap3_save_scratchpad_contents(void)
scratchpad_contents.public_restore_ptr =
virt_to_phys(omap3_restore_3630);
else if (omap_rev() != OMAP3430_REV_ES3_0 &&
omap_rev() != OMAP3430_REV_ES3_1)
omap_rev() != OMAP3430_REV_ES3_1 &&
omap_rev() != OMAP3430_REV_ES3_1_2)
scratchpad_contents.public_restore_ptr =
virt_to_phys(omap3_restore);
else

7
arch/arm/mm/idmap.c
View File

@@ -24,6 +24,13 @@ static void idmap_add_pmd(pud_t *pud, unsigned long addr, unsigned long end,
pr_warning("Failed to allocate identity pmd.\n");
return;
}
/*
* Copy the original PMD to ensure that the PMD entries for
* the kernel image are preserved.
*/
if (!pud_none(*pud))
memcpy(pmd, pmd_offset(pud, 0),
PTRS_PER_PMD * sizeof(pmd_t));
pud_populate(&init_mm, pud, pmd);
pmd += pmd_index(addr);
} else

1
arch/arm64/Kconfig
View File

@@ -1,6 +1,7 @@
config ARM64
def_bool y
select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE
select ARCH_SUPPORTS_ATOMIC_RMW
select ARCH_WANT_OPTIONAL_GPIOLIB
select ARCH_WANT_COMPAT_IPC_PARSE_VERSION
select ARCH_WANT_FRAME_POINTERS

2
arch/parisc/include/uapi/asm/signal.h
View File

@@ -69,8 +69,6 @@
#define SA_NOMASK SA_NODEFER
#define SA_ONESHOT SA_RESETHAND
#define SA_RESTORER 0x04000000 /* obsolete -- ignored */
#define MINSIGSTKSZ 2048
#define SIGSTKSZ 8192

1
arch/powerpc/Kconfig
View File

@@ -138,6 +138,7 @@ config PPC
select OLD_SIGSUSPEND
select OLD_SIGACTION if PPC32
select HAVE_DEBUG_STACKOVERFLOW
select ARCH_SUPPORTS_ATOMIC_RMW
config EARLY_PRINTK
bool

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

@@ -322,7 +322,9 @@ static int __poke_user(struct task_struct *child, addr_t addr, addr_t data)
* psw and gprs are stored on the stack
*/
if (addr == (addr_t) &dummy->regs.psw.mask &&
((data & ~PSW_MASK_USER) != psw_user_bits ||
(((data^psw_user_bits) & ~PSW_MASK_USER) ||
(((data^psw_user_bits) & PSW_MASK_ASC) &&
((data|psw_user_bits) & PSW_MASK_ASC) == PSW_MASK_ASC) ||
((data & PSW_MASK_EA) && !(data & PSW_MASK_BA))))
/* Invalid psw mask. */
return -EINVAL;
@@ -655,7 +657,10 @@ static int __poke_user_compat(struct task_struct *child,
*/
if (addr == (addr_t) &dummy32->regs.psw.mask) {
/* Build a 64 bit psw mask from 31 bit mask. */
if ((tmp & ~PSW32_MASK_USER) != psw32_user_bits)
if (((tmp^psw32_user_bits) & ~PSW32_MASK_USER) ||
(((tmp^psw32_user_bits) & PSW32_MASK_ASC) &&
((tmp|psw32_user_bits) & PSW32_MASK_ASC)
== PSW32_MASK_ASC))
/* Invalid psw mask. */
return -EINVAL;
regs->psw.mask = (regs->psw.mask & ~PSW_MASK_USER) |

1
arch/sparc/Kconfig
View File

@@ -75,6 +75,7 @@ config SPARC64
select ARCH_HAVE_NMI_SAFE_CMPXCHG
select HAVE_C_RECORDMCOUNT
select NO_BOOTMEM
select ARCH_SUPPORTS_ATOMIC_RMW
config ARCH_DEFCONFIG
string

15
arch/sparc/include/asm/pgtable_64.h
View File

@@ -24,7 +24,8 @@
/* The kernel image occupies 0x4000000 to 0x6000000 (4MB --> 96MB).
* The page copy blockops can use 0x6000000 to 0x8000000.
* The TSB is mapped in the 0x8000000 to 0xa000000 range.
* The 8K TSB is mapped in the 0x8000000 to 0x8400000 range.
* The 4M TSB is mapped in the 0x8400000 to 0x8800000 range.
* The PROM resides in an area spanning 0xf0000000 to 0x100000000.
* The vmalloc area spans 0x100000000 to 0x200000000.
* Since modules need to be in the lowest 32-bits of the address space,
@@ -33,7 +34,8 @@
* 0x400000000.
*/
#define TLBTEMP_BASE _AC(0x0000000006000000,UL)
#define TSBMAP_BASE _AC(0x0000000008000000,UL)
#define TSBMAP_8K_BASE _AC(0x0000000008000000,UL)
#define TSBMAP_4M_BASE _AC(0x0000000008400000,UL)
#define MODULES_VADDR _AC(0x0000000010000000,UL)
#define MODULES_LEN _AC(0x00000000e0000000,UL)
#define MODULES_END _AC(0x00000000f0000000,UL)
@@ -102,9 +104,12 @@
/* Kernel has a separate 44bit address space. */
#define FIRST_USER_ADDRESS 0
#define pte_ERROR(e) __builtin_trap()
#define pmd_ERROR(e) __builtin_trap()
#define pgd_ERROR(e) __builtin_trap()
#define pmd_ERROR(e) \
pr_err("%s:%d: bad pmd %p(%016lx) seen at (%pS)\n", \
__FILE__, __LINE__, &(e), pmd_val(e), __builtin_return_address(0))
#define pgd_ERROR(e) \
pr_err("%s:%d: bad pgd %p(%016lx) seen at (%pS)\n", \
__FILE__, __LINE__, &(e), pgd_val(e), __builtin_return_address(0))
#endif /* !(__ASSEMBLY__) */

12
arch/sparc/include/asm/tlbflush_64.h
View File

@@ -35,6 +35,8 @@ static inline void flush_tlb_range(struct vm_area_struct *vma,
{
}
void flush_tlb_kernel_range(unsigned long start, unsigned long end);
#define __HAVE_ARCH_ENTER_LAZY_MMU_MODE
extern void flush_tlb_pending(void);
@@ -49,11 +51,6 @@ extern void __flush_tlb_kernel_range(unsigned long start, unsigned long end);
#ifndef CONFIG_SMP
#define flush_tlb_kernel_range(start,end) \
do { flush_tsb_kernel_range(start,end); \
__flush_tlb_kernel_range(start,end); \
} while (0)
static inline void global_flush_tlb_page(struct mm_struct *mm, unsigned long vaddr)
{
__flush_tlb_page(CTX_HWBITS(mm->context), vaddr);
@@ -64,11 +61,6 @@ static inline void global_flush_tlb_page(struct mm_struct *mm, unsigned long vad
extern void smp_flush_tlb_kernel_range(unsigned long start, unsigned long end);
extern void smp_flush_tlb_page(struct mm_struct *mm, unsigned long vaddr);
#define flush_tlb_kernel_range(start, end) \
do { flush_tsb_kernel_range(start,end); \
smp_flush_tlb_kernel_range(start, end); \
} while (0)
#define global_flush_tlb_page(mm, vaddr) \
smp_flush_tlb_page(mm, vaddr)

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

@@ -1336,7 +1336,7 @@ int ldc_connect(struct ldc_channel *lp)
if (!(lp->flags & LDC_FLAG_ALLOCED_QUEUES) ||
!(lp->flags & LDC_FLAG_REGISTERED_QUEUES) ||
lp->hs_state != LDC_HS_OPEN)
err = -EINVAL;
err = ((lp->hs_state > LDC_HS_OPEN) ? 0 : -EINVAL);
else
err = start_handshake(lp);

6
arch/sparc/kernel/smp_64.c
View File

@@ -150,7 +150,7 @@ void cpu_panic(void)
#define NUM_ROUNDS 64 /* magic value */
#define NUM_ITERS 5 /* likewise */
static DEFINE_SPINLOCK(itc_sync_lock);
static DEFINE_RAW_SPINLOCK(itc_sync_lock);
static unsigned long go[SLAVE + 1];
#define DEBUG_TICK_SYNC 0
@@ -258,7 +258,7 @@ static void smp_synchronize_one_tick(int cpu)
go[MASTER] = 0;
membar_safe("#StoreLoad");
spin_lock_irqsave(&itc_sync_lock, flags);
raw_spin_lock_irqsave(&itc_sync_lock, flags);
{
for (i = 0; i < NUM_ROUNDS*NUM_ITERS; i++) {
while (!go[MASTER])
@@ -269,7 +269,7 @@ static void smp_synchronize_one_tick(int cpu)
membar_safe("#StoreLoad");
}
}
spin_unlock_irqrestore(&itc_sync_lock, flags);
raw_spin_unlock_irqrestore(&itc_sync_lock, flags);
}
#if defined(CONFIG_SUN_LDOMS) && defined(CONFIG_HOTPLUG_CPU)

2
arch/sparc/kernel/sys32.S
View File

@@ -44,7 +44,7 @@ SIGN1(sys32_timer_settime, compat_sys_timer_settime, %o1)
SIGN1(sys32_io_submit, compat_sys_io_submit, %o1)
SIGN1(sys32_mq_open, compat_sys_mq_open, %o1)
SIGN1(sys32_select, compat_sys_select, %o0)
SIGN3(sys32_futex, compat_sys_futex, %o1, %o2, %o5)
SIGN1(sys32_futex, compat_sys_futex, %o1)
SIGN1(sys32_recvfrom, compat_sys_recvfrom, %o0)
SIGN1(sys32_recvmsg, compat_sys_recvmsg, %o0)
SIGN1(sys32_sendmsg, compat_sys_sendmsg, %o0)

12
arch/sparc/kernel/unaligned_64.c
View File

@@ -163,17 +163,23 @@ static unsigned long *fetch_reg_addr(unsigned int reg, struct pt_regs *regs)
unsigned long compute_effective_address(struct pt_regs *regs,
unsigned int insn, unsigned int rd)
{
int from_kernel = (regs->tstate & TSTATE_PRIV) != 0;
unsigned int rs1 = (insn >> 14) & 0x1f;
unsigned int rs2 = insn & 0x1f;
int from_kernel = (regs->tstate & TSTATE_PRIV) != 0;
unsigned long addr;
if (insn & 0x2000) {
maybe_flush_windows(rs1, 0, rd, from_kernel);
return (fetch_reg(rs1, regs) + sign_extend_imm13(insn));
addr = (fetch_reg(rs1, regs) + sign_extend_imm13(insn));
} else {
maybe_flush_windows(rs1, rs2, rd, from_kernel);
return (fetch_reg(rs1, regs) + fetch_reg(rs2, regs));
addr = (fetch_reg(rs1, regs) + fetch_reg(rs2, regs));
}
if (!from_kernel && test_thread_flag(TIF_32BIT))
addr &= 0xffffffff;
return addr;
}
/* This is just to make gcc think die_if_kernel does return... */

1
arch/sparc/lib/NG2memcpy.S
View File

@@ -236,6 +236,7 @@ FUNC_NAME: /* %o0=dst, %o1=src, %o2=len */
*/
VISEntryHalf
membar #Sync
alignaddr %o1, %g0, %g0
add %o1, (64 - 1), %o4

2
arch/sparc/math-emu/math_32.c
View File

@@ -499,7 +499,7 @@ static int do_one_mathemu(u32 insn, unsigned long *pfsr, unsigned long *fregs)
case 0: fsr = *pfsr;
if (IR == -1) IR = 2;
/* fcc is always fcc0 */
fsr &= ~0xc00; fsr |= (IR << 10); break;
fsr &= ~0xc00; fsr |= (IR << 10);
*pfsr = fsr;
break;
case 1: rd->s = IR; break;

100
arch/sparc/mm/fault_64.c
View File

@@ -95,38 +95,51 @@ static unsigned int get_user_insn(unsigned long tpc)
pte_t *ptep, pte;
unsigned long pa;
u32 insn = 0;
unsigned long pstate;
if (pgd_none(*pgdp))
goto outret;
if (pgd_none(*pgdp) || unlikely(pgd_bad(*pgdp)))
goto out;
pudp = pud_offset(pgdp, tpc);
if (pud_none(*pudp))
goto outret;
pmdp = pmd_offset(pudp, tpc);
if (pmd_none(*pmdp))
goto outret;
/* This disables preemption for us as well. */
__asm__ __volatile__("rdpr %%pstate, %0" : "=r" (pstate));
__asm__ __volatile__("wrpr %0, %1, %%pstate"
: : "r" (pstate), "i" (PSTATE_IE));
ptep = pte_offset_map(pmdp, tpc);
pte = *ptep;
if (!pte_present(pte))
if (pud_none(*pudp) || unlikely(pud_bad(*pudp)))
goto out;
pa = (pte_pfn(pte) << PAGE_SHIFT);
pa += (tpc & ~PAGE_MASK);
/* This disables preemption for us as well. */
local_irq_disable();
/* Use phys bypass so we don't pollute dtlb/dcache. */
__asm__ __volatile__("lduwa [%1] %2, %0"
: "=r" (insn)
: "r" (pa), "i" (ASI_PHYS_USE_EC));
pmdp = pmd_offset(pudp, tpc);
if (pmd_none(*pmdp) || unlikely(pmd_bad(*pmdp)))
goto out_irq_enable;
#ifdef CONFIG_TRANSPARENT_HUGEPAGE
if (pmd_trans_huge(*pmdp)) {
if (pmd_trans_splitting(*pmdp))
goto out_irq_enable;
pa = pmd_pfn(*pmdp) << PAGE_SHIFT;
pa += tpc & ~HPAGE_MASK;
/* Use phys bypass so we don't pollute dtlb/dcache. */
__asm__ __volatile__("lduwa [%1] %2, %0"
: "=r" (insn)
: "r" (pa), "i" (ASI_PHYS_USE_EC));
} else
#endif
{
ptep = pte_offset_map(pmdp, tpc);
pte = *ptep;
if (pte_present(pte)) {
pa = (pte_pfn(pte) << PAGE_SHIFT);
pa += (tpc & ~PAGE_MASK);
/* Use phys bypass so we don't pollute dtlb/dcache. */
__asm__ __volatile__("lduwa [%1] %2, %0"
: "=r" (insn)
: "r" (pa), "i" (ASI_PHYS_USE_EC));
}
pte_unmap(ptep);
}
out_irq_enable:
local_irq_enable();
out:
pte_unmap(ptep);
__asm__ __volatile__("wrpr %0, 0x0, %%pstate" : : "r" (pstate));
outret:
return insn;
}
@@ -152,7 +165,8 @@ show_signal_msg(struct pt_regs *regs, int sig, int code,
}
static void do_fault_siginfo(int code, int sig, struct pt_regs *regs,
unsigned int insn, int fault_code)
unsigned long fault_addr, unsigned int insn,
int fault_code)
{
unsigned long addr;
siginfo_t info;
@@ -160,10 +174,18 @@ static void do_fault_siginfo(int code, int sig, struct pt_regs *regs,
info.si_code = code;
info.si_signo = sig;
info.si_errno = 0;
if (fault_code & FAULT_CODE_ITLB)
if (fault_code & FAULT_CODE_ITLB) {
addr = regs->tpc;
else
addr = compute_effective_address(regs, insn, 0);
} else {
/* If we were able to probe the faulting instruction, use it
* to compute a precise fault address. Otherwise use the fault
* time provided address which may only have page granularity.
*/
if (insn)
addr = compute_effective_address(regs, insn, 0);
else
addr = fault_addr;
}
info.si_addr = (void __user *) addr;
info.si_trapno = 0;
@@ -238,7 +260,7 @@ static void __kprobes do_kernel_fault(struct pt_regs *regs, int si_code,
/* The si_code was set to make clear whether
* this was a SEGV_MAPERR or SEGV_ACCERR fault.
*/
do_fault_siginfo(si_code, SIGSEGV, regs, insn, fault_code);
do_fault_siginfo(si_code, SIGSEGV, regs, address, insn, fault_code);
return;
}
@@ -258,18 +280,6 @@ static void noinline __kprobes bogus_32bit_fault_tpc(struct pt_regs *regs)
show_regs(regs);
}
static void noinline __kprobes bogus_32bit_fault_address(struct pt_regs *regs,
unsigned long addr)
{
static int times;
if (times++ < 10)
printk(KERN_ERR "FAULT[%s:%d]: 32-bit process "
"reports 64-bit fault address [%lx]\n",
current->comm, current->pid, addr);
show_regs(regs);
}
asmlinkage void __kprobes do_sparc64_fault(struct pt_regs *regs)
{
struct mm_struct *mm = current->mm;
@@ -298,10 +308,8 @@ asmlinkage void __kprobes do_sparc64_fault(struct pt_regs *regs)
goto intr_or_no_mm;
}
}
if (unlikely((address >> 32) != 0)) {
bogus_32bit_fault_address(regs, address);
if (unlikely((address >> 32) != 0))
goto intr_or_no_mm;
}
}
if (regs->tstate & TSTATE_PRIV) {
@@ -521,7 +529,7 @@ do_sigbus:
* Send a sigbus, regardless of whether we were in kernel
* or user mode.
*/
do_fault_siginfo(BUS_ADRERR, SIGBUS, regs, insn, fault_code);
do_fault_siginfo(BUS_ADRERR, SIGBUS, regs, address, insn, fault_code);
/* Kernel mode? Handle exceptions or die */
if (regs->tstate & TSTATE_PRIV)

27
arch/sparc/mm/init_64.c
View File

@@ -350,6 +350,10 @@ void update_mmu_cache(struct vm_area_struct *vma, unsigned long address, pte_t *
mm = vma->vm_mm;
/* Don't insert a non-valid PTE into the TSB, we'll deadlock. */
if (!pte_accessible(mm, pte))
return;
spin_lock_irqsave(&mm->context.lock, flags);
#if defined(CONFIG_HUGETLB_PAGE) || defined(CONFIG_TRANSPARENT_HUGEPAGE)
@@ -2746,3 +2750,26 @@ void hugetlb_setup(struct pt_regs *regs)
}
}
#endif
#ifdef CONFIG_SMP
#define do_flush_tlb_kernel_range smp_flush_tlb_kernel_range
#else
#define do_flush_tlb_kernel_range __flush_tlb_kernel_range
#endif
void flush_tlb_kernel_range(unsigned long start, unsigned long end)
{
if (start < HI_OBP_ADDRESS && end > LOW_OBP_ADDRESS) {
if (start < LOW_OBP_ADDRESS) {
flush_tsb_kernel_range(start, LOW_OBP_ADDRESS);
do_flush_tlb_kernel_range(start, LOW_OBP_ADDRESS);
}
if (end > HI_OBP_ADDRESS) {
flush_tsb_kernel_range(end, HI_OBP_ADDRESS);
do_flush_tlb_kernel_range(end, HI_OBP_ADDRESS);
}
} else {
flush_tsb_kernel_range(start, end);
do_flush_tlb_kernel_range(start, end);
}
}

14
arch/sparc/mm/tsb.c
View File

@@ -133,7 +133,19 @@ static void setup_tsb_params(struct mm_struct *mm, unsigned long tsb_idx, unsign
mm->context.tsb_block[tsb_idx].tsb_nentries =
tsb_bytes / sizeof(struct tsb);
base = TSBMAP_BASE;
switch (tsb_idx) {
case MM_TSB_BASE:
base = TSBMAP_8K_BASE;
break;
#if defined(CONFIG_HUGETLB_PAGE) || defined(CONFIG_TRANSPARENT_HUGEPAGE)
case MM_TSB_HUGE:
base = TSBMAP_4M_BASE;
break;
#endif
default:
BUG();
}
tte = pgprot_val(PAGE_KERNEL_LOCKED);
tsb_paddr = __pa(mm->context.tsb_block[tsb_idx].tsb);
BUG_ON(tsb_paddr & (tsb_bytes - 1UL));

27
arch/x86/Kconfig
View File

@@ -123,6 +123,7 @@ config X86
select COMPAT_OLD_SIGACTION if IA32_EMULATION
select RTC_LIB
select HAVE_DEBUG_STACKOVERFLOW
select ARCH_SUPPORTS_ATOMIC_RMW
config INSTRUCTION_DECODER
def_bool y
@@ -972,10 +973,27 @@ config VM86
default y
depends on X86_32
---help---
This option is required by programs like DOSEMU to run 16-bit legacy
code on X86 processors. It also may be needed by software like
XFree86 to initialize some video cards via BIOS. Disabling this
option saves about 6k.
This option is required by programs like DOSEMU to run
16-bit real mode legacy code on x86 processors. It also may
be needed by software like XFree86 to initialize some video
cards via BIOS. Disabling this option saves about 6K.
config X86_16BIT
bool "Enable support for 16-bit segments" if EXPERT
default y
---help---
This option is required by programs like Wine to run 16-bit
protected mode legacy code on x86 processors. Disabling
this option saves about 300 bytes on i386, or around 6K text
plus 16K runtime memory on x86-64,
config X86_ESPFIX32
def_bool y
depends on X86_16BIT && X86_32
config X86_ESPFIX64
def_bool y
depends on X86_16BIT && X86_64
config TOSHIBA
tristate "Toshiba Laptop support"
@@ -1590,6 +1608,7 @@ config EFI
config EFI_STUB
bool "EFI stub support"
depends on EFI
select RELOCATABLE
---help---
This kernel feature allows a bzImage to be loaded directly
by EFI firmware without the use of a bootloader.

26
arch/x86/boot/header.S
View File

@@ -91,10 +91,9 @@ bs_die:
.section ".bsdata", "a"
bugger_off_msg:
.ascii "Direct floppy boot is not supported. "
.ascii "Use a boot loader program instead.\r\n"
.ascii "Use a boot loader.\r\n"
.ascii "\n"
.ascii "Remove disk and press any key to reboot ...\r\n"
.ascii "Remove disk and press any key to reboot...\r\n"
.byte 0
#ifdef CONFIG_EFI_STUB
@@ -108,7 +107,7 @@ coff_header:
#else
.word 0x8664 # x86-64
#endif
.word 3 # nr_sections
.word 4 # nr_sections
.long 0 # TimeDateStamp
.long 0 # PointerToSymbolTable
.long 1 # NumberOfSymbols
@@ -250,6 +249,25 @@ section_table:
.word 0 # NumberOfLineNumbers
.long 0x60500020 # Characteristics (section flags)
#
# The offset & size fields are filled in by build.c.
#
.ascii ".bss"
.byte 0
.byte 0
.byte 0
.byte 0
.long 0
.long 0x0
.long 0 # Size of initialized data
# on disk
.long 0x0
.long 0 # PointerToRelocations
.long 0 # PointerToLineNumbers
.word 0 # NumberOfRelocations
.word 0 # NumberOfLineNumbers
.long 0xc8000080 # Characteristics (section flags)
#endif /* CONFIG_EFI_STUB */
# Kernel attributes; used by setup. This is part 1 of the

37
arch/x86/boot/tools/build.c
View File

@@ -141,7 +141,7 @@ static void usage(void)
#ifdef CONFIG_EFI_STUB
static void update_pecoff_section_header(char *section_name, u32 offset, u32 size)
static void update_pecoff_section_header_fields(char *section_name, u32 vma, u32 size, u32 datasz, u32 offset)
{
unsigned int pe_header;
unsigned short num_sections;
@@ -162,10 +162,10 @@ static void update_pecoff_section_header(char *section_name, u32 offset, u32 siz
put_unaligned_le32(size, section + 0x8);
/* section header vma field */
put_unaligned_le32(offset, section + 0xc);
put_unaligned_le32(vma, section + 0xc);
/* section header 'size of initialised data' field */
put_unaligned_le32(size, section + 0x10);
put_unaligned_le32(datasz, section + 0x10);
/* section header 'file offset' field */
put_unaligned_le32(offset, section + 0x14);
@@ -177,6 +177,11 @@ static void update_pecoff_section_header(char *section_name, u32 offset, u32 siz
}
}
static void update_pecoff_section_header(char *section_name, u32 offset, u32 size)
{
update_pecoff_section_header_fields(section_name, offset, size, size, offset);
}
static void update_pecoff_setup_and_reloc(unsigned int size)
{
u32 setup_offset = 0x200;
@@ -201,9 +206,6 @@ static void update_pecoff_text(unsigned int text_start, unsigned int file_sz)
pe_header = get_unaligned_le32(&buf[0x3c]);
/* Size of image */
put_unaligned_le32(file_sz, &buf[pe_header + 0x50]);
/*
* Size of code: Subtract the size of the first sector (512 bytes)
* which includes the header.
@@ -218,6 +220,22 @@ static void update_pecoff_text(unsigned int text_start, unsigned int file_sz)
update_pecoff_section_header(".text", text_start, text_sz);
}
static void update_pecoff_bss(unsigned int file_sz, unsigned int init_sz)
{
unsigned int pe_header;
unsigned int bss_sz = init_sz - file_sz;
pe_header = get_unaligned_le32(&buf[0x3c]);
/* Size of uninitialized data */
put_unaligned_le32(bss_sz, &buf[pe_header + 0x24]);
/* Size of image */
put_unaligned_le32(init_sz, &buf[pe_header + 0x50]);
update_pecoff_section_header_fields(".bss", file_sz, bss_sz, 0, 0);
}
#endif /* CONFIG_EFI_STUB */
@@ -269,6 +287,9 @@ int main(int argc, char ** argv)
int fd;
void *kernel;
u32 crc = 0xffffffffUL;
#ifdef CONFIG_EFI_STUB
unsigned int init_sz;
#endif
/* Defaults for old kernel */
#ifdef CONFIG_X86_32
@@ -339,7 +360,9 @@ int main(int argc, char ** argv)
put_unaligned_le32(sys_size, &buf[0x1f4]);
#ifdef CONFIG_EFI_STUB
update_pecoff_text(setup_sectors * 512, sz + i + ((sys_size * 16) - sz));
update_pecoff_text(setup_sectors * 512, i + (sys_size * 16));
init_sz = get_unaligned_le32(&buf[0x260]);
update_pecoff_bss(i + (sys_size * 16), init_sz);
#ifdef CONFIG_X86_64 /* Yes, this is really how we defined it :( */
efi_stub_entry -= 0x200;

16
arch/x86/include/asm/espfix.h Normal file
View File

@@ -0,0 +1,16 @@
#ifndef _ASM_X86_ESPFIX_H
#define _ASM_X86_ESPFIX_H
#ifdef CONFIG_X86_64
#include <asm/percpu.h>
DECLARE_PER_CPU_READ_MOSTLY(unsigned long, espfix_stack);
DECLARE_PER_CPU_READ_MOSTLY(unsigned long, espfix_waddr);
extern void init_espfix_bsp(void);
extern void init_espfix_ap(void);
#endif /* CONFIG_X86_64 */
#endif /* _ASM_X86_ESPFIX_H */

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

@@ -129,7 +129,7 @@ static inline notrace unsigned long arch_local_irq_save(void)
#define PARAVIRT_ADJUST_EXCEPTION_FRAME /* */
#define INTERRUPT_RETURN iretq
#define INTERRUPT_RETURN jmp native_iret
#define USERGS_SYSRET64 \
swapgs; \
sysretq;

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

@@ -92,7 +92,7 @@
#define KVM_REFILL_PAGES 25
#define KVM_MAX_CPUID_ENTRIES 80
#define KVM_NR_FIXED_MTRR_REGION 88
#define KVM_NR_VAR_MTRR 10
#define KVM_NR_VAR_MTRR 8
#define ASYNC_PF_PER_VCPU 64

2
arch/x86/include/asm/pgtable_64_types.h
View File

@@ -61,6 +61,8 @@ typedef struct { pteval_t pte; } pte_t;
#define MODULES_VADDR _AC(0xffffffffa0000000, UL)
#define MODULES_END _AC(0xffffffffff000000, UL)
#define MODULES_LEN (MODULES_END - MODULES_VADDR)
#define ESPFIX_PGD_ENTRY _AC(-2, UL)
#define ESPFIX_BASE_ADDR (ESPFIX_PGD_ENTRY << PGDIR_SHIFT)
#define EARLY_DYNAMIC_PAGE_TABLES 64

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

@@ -64,6 +64,8 @@ static inline void x86_ce4100_early_setup(void) { }
#ifndef _SETUP
#include <asm/espfix.h>
/*
* This is set up by the setup-routine at boot-time
*/

1
arch/x86/kernel/Makefile
View File

@@ -29,6 +29,7 @@ obj-$(CONFIG_X86_64) += sys_x86_64.o x8664_ksyms_64.o
obj-y += syscall_$(BITS).o
obj-$(CONFIG_X86_64) += vsyscall_64.o
obj-$(CONFIG_X86_64) += vsyscall_emu_64.o
obj-$(CONFIG_X86_ESPFIX64) += espfix_64.o
obj-y += bootflag.o e820.o
obj-y += pci-dma.o quirks.o topology.o kdebugfs.o
obj-y += alternative.o i8253.o pci-nommu.o hw_breakpoint.o

9
arch/x86/kernel/cpu/perf_event_intel.c
View File

@@ -1364,6 +1364,15 @@ again:
intel_pmu_lbr_read();
/*
* CondChgd bit 63 doesn't mean any overflow status. Ignore
* and clear the bit.
*/
if (__test_and_clear_bit(63, (unsigned long *)&status)) {
if (!status)
goto done;
}
/*
* PEBS overflow sets bit 62 in the global status register
*/

21
arch/x86/kernel/entry_32.S
View File

@@ -436,8 +436,8 @@ sysenter_do_call:
cmpl $(NR_syscalls), %eax
jae sysenter_badsys
call *sys_call_table(,%eax,4)
movl %eax,PT_EAX(%esp)
sysenter_after_call:
movl %eax,PT_EAX(%esp)
LOCKDEP_SYS_EXIT
DISABLE_INTERRUPTS(CLBR_ANY)
TRACE_IRQS_OFF
@@ -517,6 +517,7 @@ ENTRY(system_call)
jae syscall_badsys
syscall_call:
call *sys_call_table(,%eax,4)
syscall_after_call:
movl %eax,PT_EAX(%esp) # store the return value
syscall_exit:
LOCKDEP_SYS_EXIT
@@ -531,6 +532,7 @@ syscall_exit:
restore_all:
TRACE_IRQS_IRET
restore_all_notrace:
#ifdef CONFIG_X86_ESPFIX32
movl PT_EFLAGS(%esp), %eax # mix EFLAGS, SS and CS
# Warning: PT_OLDSS(%esp) contains the wrong/random values if we
# are returning to the kernel.
@@ -541,6 +543,7 @@ restore_all_notrace:
cmpl $((SEGMENT_LDT << 8) | USER_RPL), %eax
CFI_REMEMBER_STATE
je ldt_ss # returning to user-space with LDT SS
#endif
restore_nocheck:
RESTORE_REGS 4 # skip orig_eax/error_code
irq_return:
@@ -553,6 +556,7 @@ ENTRY(iret_exc)
.previous
_ASM_EXTABLE(irq_return,iret_exc)
#ifdef CONFIG_X86_ESPFIX32
CFI_RESTORE_STATE
ldt_ss:
#ifdef CONFIG_PARAVIRT
@@ -596,6 +600,7 @@ ldt_ss:
lss (%esp), %esp /* switch to espfix segment */
CFI_ADJUST_CFA_OFFSET -8
jmp restore_nocheck
#endif
CFI_ENDPROC
ENDPROC(system_call)
@@ -686,12 +691,12 @@ syscall_fault:
END(syscall_fault)
syscall_badsys:
movl $-ENOSYS,PT_EAX(%esp)
jmp syscall_exit
movl $-ENOSYS,%eax
jmp syscall_after_call
END(syscall_badsys)
sysenter_badsys:
movl $-ENOSYS,PT_EAX(%esp)
movl $-ENOSYS,%eax
jmp sysenter_after_call
END(syscall_badsys)
CFI_ENDPROC
@@ -708,6 +713,7 @@ END(syscall_badsys)
* the high word of the segment base from the GDT and swiches to the
* normal stack and adjusts ESP with the matching offset.
*/
#ifdef CONFIG_X86_ESPFIX32
/* fixup the stack */
mov GDT_ESPFIX_SS + 4, %al /* bits 16..23 */
mov GDT_ESPFIX_SS + 7, %ah /* bits 24..31 */
@@ -717,8 +723,10 @@ END(syscall_badsys)
pushl_cfi %eax
lss (%esp), %esp /* switch to the normal stack segment */
CFI_ADJUST_CFA_OFFSET -8
#endif
.endm
.macro UNWIND_ESPFIX_STACK
#ifdef CONFIG_X86_ESPFIX32
movl %ss, %eax
/* see if on espfix stack */
cmpw $__ESPFIX_SS, %ax
@@ -729,6 +737,7 @@ END(syscall_badsys)
/* switch to normal stack */
FIXUP_ESPFIX_STACK
27:
#endif
.endm
/*
@@ -1349,11 +1358,13 @@ END(debug)
ENTRY(nmi)
RING0_INT_FRAME
ASM_CLAC
#ifdef CONFIG_X86_ESPFIX32
pushl_cfi %eax
movl %ss, %eax
cmpw $__ESPFIX_SS, %ax
popl_cfi %eax
je nmi_espfix_stack
#endif
cmpl $ia32_sysenter_target,(%esp)
je nmi_stack_fixup
pushl_cfi %eax
@@ -1393,6 +1404,7 @@ nmi_debug_stack_check:
FIX_STACK 24, nmi_stack_correct, 1
jmp nmi_stack_correct
#ifdef CONFIG_X86_ESPFIX32
nmi_espfix_stack:
/* We have a RING0_INT_FRAME here.
*
@@ -1414,6 +1426,7 @@ nmi_espfix_stack:
lss 12+4(%esp), %esp # back to espfix stack
CFI_ADJUST_CFA_OFFSET -24
jmp irq_return
#endif
CFI_ENDPROC
END(nmi)

77
arch/x86/kernel/entry_64.S
View File

@@ -58,6 +58,7 @@
#include <asm/asm.h>
#include <asm/context_tracking.h>
#include <asm/smap.h>
#include <asm/pgtable_types.h>
#include <linux/err.h>
/* Avoid __ASSEMBLER__'ifying <linux/audit.h> just for this. */
@@ -1041,12 +1042,45 @@ restore_args:
irq_return:
INTERRUPT_RETURN
_ASM_EXTABLE(irq_return, bad_iret)
#ifdef CONFIG_PARAVIRT
ENTRY(native_iret)
/*
* Are we returning to a stack segment from the LDT? Note: in
* 64-bit mode SS:RSP on the exception stack is always valid.
*/
#ifdef CONFIG_X86_ESPFIX64
testb $4,(SS-RIP)(%rsp)
jnz native_irq_return_ldt
#endif
native_irq_return_iret:
iretq
_ASM_EXTABLE(native_iret, bad_iret)
_ASM_EXTABLE(native_irq_return_iret, bad_iret)
#ifdef CONFIG_X86_ESPFIX64
native_irq_return_ldt:
pushq_cfi %rax
pushq_cfi %rdi
SWAPGS
movq PER_CPU_VAR(espfix_waddr),%rdi
movq %rax,(0*8)(%rdi) /* RAX */
movq (2*8)(%rsp),%rax /* RIP */
movq %rax,(1*8)(%rdi)
movq (3*8)(%rsp),%rax /* CS */
movq %rax,(2*8)(%rdi)
movq (4*8)(%rsp),%rax /* RFLAGS */
movq %rax,(3*8)(%rdi)
movq (6*8)(%rsp),%rax /* SS */
movq %rax,(5*8)(%rdi)
movq (5*8)(%rsp),%rax /* RSP */
movq %rax,(4*8)(%rdi)
andl $0xffff0000,%eax
popq_cfi %rdi
orq PER_CPU_VAR(espfix_stack),%rax
SWAPGS
movq %rax,%rsp
popq_cfi %rax
jmp native_irq_return_iret
#endif
.section .fixup,"ax"
@@ -1112,9 +1146,40 @@ ENTRY(retint_kernel)
call preempt_schedule_irq
jmp exit_intr
#endif
CFI_ENDPROC
END(common_interrupt)
/*
* If IRET takes a fault on the espfix stack, then we
* end up promoting it to a doublefault. In that case,
* modify the stack to make it look like we just entered
* the #GP handler from user space, similar to bad_iret.
*/
#ifdef CONFIG_X86_ESPFIX64
ALIGN
__do_double_fault:
XCPT_FRAME 1 RDI+8
movq RSP(%rdi),%rax /* Trap on the espfix stack? */
sarq $PGDIR_SHIFT,%rax
cmpl $ESPFIX_PGD_ENTRY,%eax
jne do_double_fault /* No, just deliver the fault */
cmpl $__KERNEL_CS,CS(%rdi)
jne do_double_fault
movq RIP(%rdi),%rax
cmpq $native_irq_return_iret,%rax
jne do_double_fault /* This shouldn't happen... */
movq PER_CPU_VAR(kernel_stack),%rax
subq $(6*8-KERNEL_STACK_OFFSET),%rax /* Reset to original stack */
movq %rax,RSP(%rdi)
movq $0,(%rax) /* Missing (lost) #GP error code */
movq $general_protection,RIP(%rdi)
retq
CFI_ENDPROC
END(__do_double_fault)
#else
# define __do_double_fault do_double_fault
#endif
/*
* End of kprobes section
*/
@@ -1305,7 +1370,7 @@ zeroentry overflow do_overflow
zeroentry bounds do_bounds
zeroentry invalid_op do_invalid_op
zeroentry device_not_available do_device_not_available
paranoiderrorentry double_fault do_double_fault
paranoiderrorentry double_fault __do_double_fault
zeroentry coprocessor_segment_overrun do_coprocessor_segment_overrun
errorentry invalid_TSS do_invalid_TSS
errorentry segment_not_present do_segment_not_present
@@ -1592,7 +1657,7 @@ error_sti:
*/
error_kernelspace:
incl %ebx
leaq irq_return(%rip),%rcx
leaq native_irq_return_iret(%rip),%rcx
cmpq %rcx,RIP+8(%rsp)
je error_swapgs
movl %ecx,%eax /* zero extend */

208
arch/x86/kernel/espfix_64.c Normal file
View File

@@ -0,0 +1,208 @@
/* ----------------------------------------------------------------------- *
*
* Copyright 2014 Intel Corporation; author: H. Peter Anvin
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
* version 2, as published by the Free Software Foundation.
*
* This program is distributed in the hope 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.
*
* ----------------------------------------------------------------------- */
/*
* The IRET instruction, when returning to a 16-bit segment, only
* restores the bottom 16 bits of the user space stack pointer. This
* causes some 16-bit software to break, but it also leaks kernel state
* to user space.
*
* This works around this by creating percpu "ministacks", each of which
* is mapped 2^16 times 64K apart. When we detect that the return SS is
* on the LDT, we copy the IRET frame to the ministack and use the
* relevant alias to return to userspace. The ministacks are mapped
* readonly, so if the IRET fault we promote #GP to #DF which is an IST
* vector and thus has its own stack; we then do the fixup in the #DF
* handler.
*
* This file sets up the ministacks and the related page tables. The
* actual ministack invocation is in entry_64.S.
*/
#include <linux/init.h>
#include <linux/init_task.h>
#include <linux/kernel.h>
#include <linux/percpu.h>
#include <linux/gfp.h>
#include <linux/random.h>
#include <asm/pgtable.h>
#include <asm/pgalloc.h>
#include <asm/setup.h>
#include <asm/espfix.h>
/*
* Note: we only need 6*8 = 48 bytes for the espfix stack, but round
* it up to a cache line to avoid unnecessary sharing.
*/
#define ESPFIX_STACK_SIZE (8*8UL)
#define ESPFIX_STACKS_PER_PAGE (PAGE_SIZE/ESPFIX_STACK_SIZE)
/* There is address space for how many espfix pages? */
#define ESPFIX_PAGE_SPACE (1UL << (PGDIR_SHIFT-PAGE_SHIFT-16))
#define ESPFIX_MAX_CPUS (ESPFIX_STACKS_PER_PAGE * ESPFIX_PAGE_SPACE)
#if CONFIG_NR_CPUS > ESPFIX_MAX_CPUS
# error "Need more than one PGD for the ESPFIX hack"
#endif
#define PGALLOC_GFP (GFP_KERNEL | __GFP_NOTRACK | __GFP_REPEAT | __GFP_ZERO)
/* This contains the *bottom* address of the espfix stack */
DEFINE_PER_CPU_READ_MOSTLY(unsigned long, espfix_stack);
DEFINE_PER_CPU_READ_MOSTLY(unsigned long, espfix_waddr);
/* Initialization mutex - should this be a spinlock? */
static DEFINE_MUTEX(espfix_init_mutex);
/* Page allocation bitmap - each page serves ESPFIX_STACKS_PER_PAGE CPUs */
#define ESPFIX_MAX_PAGES DIV_ROUND_UP(CONFIG_NR_CPUS, ESPFIX_STACKS_PER_PAGE)
static void *espfix_pages[ESPFIX_MAX_PAGES];
static __page_aligned_bss pud_t espfix_pud_page[PTRS_PER_PUD]
__aligned(PAGE_SIZE);
static unsigned int page_random, slot_random;
/*
* This returns the bottom address of the espfix stack for a specific CPU.
* The math allows for a non-power-of-two ESPFIX_STACK_SIZE, in which case
* we have to account for some amount of padding at the end of each page.
*/
static inline unsigned long espfix_base_addr(unsigned int cpu)
{
unsigned long page, slot;
unsigned long addr;
page = (cpu / ESPFIX_STACKS_PER_PAGE) ^ page_random;
slot = (cpu + slot_random) % ESPFIX_STACKS_PER_PAGE;
addr = (page << PAGE_SHIFT) + (slot * ESPFIX_STACK_SIZE);
addr = (addr & 0xffffUL) | ((addr & ~0xffffUL) << 16);
addr += ESPFIX_BASE_ADDR;
return addr;
}
#define PTE_STRIDE (65536/PAGE_SIZE)
#define ESPFIX_PTE_CLONES (PTRS_PER_PTE/PTE_STRIDE)
#define ESPFIX_PMD_CLONES PTRS_PER_PMD
#define ESPFIX_PUD_CLONES (65536/(ESPFIX_PTE_CLONES*ESPFIX_PMD_CLONES))
#define PGTABLE_PROT ((_KERNPG_TABLE & ~_PAGE_RW) | _PAGE_NX)
static void init_espfix_random(void)
{
unsigned long rand;
/*
* This is run before the entropy pools are initialized,
* but this is hopefully better than nothing.
*/
if (!arch_get_random_long(&rand)) {
/* The constant is an arbitrary large prime */
rdtscll(rand);
rand *= 0xc345c6b72fd16123UL;
}
slot_random = rand % ESPFIX_STACKS_PER_PAGE;
page_random = (rand / ESPFIX_STACKS_PER_PAGE)
& (ESPFIX_PAGE_SPACE - 1);
}
void __init init_espfix_bsp(void)
{
pgd_t *pgd_p;
pteval_t ptemask;
ptemask = __supported_pte_mask;
/* Install the espfix pud into the kernel page directory */
pgd_p = &init_level4_pgt[pgd_index(ESPFIX_BASE_ADDR)];
pgd_populate(&init_mm, pgd_p, (pud_t *)espfix_pud_page);
/* Randomize the locations */
init_espfix_random();
/* The rest is the same as for any other processor */
init_espfix_ap();
}
void init_espfix_ap(void)
{
unsigned int cpu, page;
unsigned long addr;
pud_t pud, *pud_p;
pmd_t pmd, *pmd_p;
pte_t pte, *pte_p;
int n;
void *stack_page;
pteval_t ptemask;
/* We only have to do this once... */
if (likely(this_cpu_read(espfix_stack)))
return; /* Already initialized */
cpu = smp_processor_id();
addr = espfix_base_addr(cpu);
page = cpu/ESPFIX_STACKS_PER_PAGE;
/* Did another CPU already set this up? */
stack_page = ACCESS_ONCE(espfix_pages[page]);
if (likely(stack_page))
goto done;
mutex_lock(&espfix_init_mutex);
/* Did we race on the lock? */
stack_page = ACCESS_ONCE(espfix_pages[page]);
if (stack_page)
goto unlock_done;
ptemask = __supported_pte_mask;
pud_p = &espfix_pud_page[pud_index(addr)];
pud = *pud_p;
if (!pud_present(pud)) {
pmd_p = (pmd_t *)__get_free_page(PGALLOC_GFP);
pud = __pud(__pa(pmd_p) | (PGTABLE_PROT & ptemask));
paravirt_alloc_pmd(&init_mm, __pa(pmd_p) >> PAGE_SHIFT);
for (n = 0; n < ESPFIX_PUD_CLONES; n++)
set_pud(&pud_p[n], pud);
}
pmd_p = pmd_offset(&pud, addr);
pmd = *pmd_p;
if (!pmd_present(pmd)) {
pte_p = (pte_t *)__get_free_page(PGALLOC_GFP);
pmd = __pmd(__pa(pte_p) | (PGTABLE_PROT & ptemask));
paravirt_alloc_pte(&init_mm, __pa(pte_p) >> PAGE_SHIFT);
for (n = 0; n < ESPFIX_PMD_CLONES; n++)
set_pmd(&pmd_p[n], pmd);
}
pte_p = pte_offset_kernel(&pmd, addr);
stack_page = (void *)__get_free_page(GFP_KERNEL);
pte = __pte(__pa(stack_page) | (__PAGE_KERNEL_RO & ptemask));
for (n = 0; n < ESPFIX_PTE_CLONES; n++)
set_pte(&pte_p[n*PTE_STRIDE], pte);
/* Job is done for this CPU and any CPU which shares this page */
ACCESS_ONCE(espfix_pages[page]) = stack_page;
unlock_done:
mutex_unlock(&espfix_init_mutex);
done:
this_cpu_write(espfix_stack, addr);
this_cpu_write(espfix_waddr, (unsigned long)stack_page
+ (addr & ~PAGE_MASK));
}

10
arch/x86/kernel/ldt.c
View File

@@ -20,8 +20,6 @@
#include <asm/mmu_context.h>
#include <asm/syscalls.h>
int sysctl_ldt16 = 0;
#ifdef CONFIG_SMP
static void flush_ldt(void *current_mm)
{
@@ -231,16 +229,10 @@ static int write_ldt(void __user *ptr, unsigned long bytecount, int oldmode)
}
}
/*
* On x86-64 we do not support 16-bit segments due to
* IRET leaking the high bits of the kernel stack address.
*/
#ifdef CONFIG_X86_64
if (!ldt_info.seg_32bit && !sysctl_ldt16) {
if (!IS_ENABLED(CONFIG_X86_16BIT) && !ldt_info.seg_32bit) {
error = -EINVAL;
goto out_unlock;
}
#endif
fill_ldt(&ldt, &ldt_info);
if (oldmode)

2
arch/x86/kernel/paravirt_patch_64.c
View File

@@ -6,7 +6,6 @@ DEF_NATIVE(pv_irq_ops, irq_disable, "cli");
DEF_NATIVE(pv_irq_ops, irq_enable, "sti");
DEF_NATIVE(pv_irq_ops, restore_fl, "pushq %rdi; popfq");
DEF_NATIVE(pv_irq_ops, save_fl, "pushfq; popq %rax");
DEF_NATIVE(pv_cpu_ops, iret, "iretq");
DEF_NATIVE(pv_mmu_ops, read_cr2, "movq %cr2, %rax");
DEF_NATIVE(pv_mmu_ops, read_cr3, "movq %cr3, %rax");
DEF_NATIVE(pv_mmu_ops, write_cr3, "movq %rdi, %cr3");
@@ -50,7 +49,6 @@ unsigned native_patch(u8 type, u16 clobbers, void *ibuf,
PATCH_SITE(pv_irq_ops, save_fl);
PATCH_SITE(pv_irq_ops, irq_enable);
PATCH_SITE(pv_irq_ops, irq_disable);
PATCH_SITE(pv_cpu_ops, iret);
PATCH_SITE(pv_cpu_ops, irq_enable_sysexit);
PATCH_SITE(pv_cpu_ops, usergs_sysret32);
PATCH_SITE(pv_cpu_ops, usergs_sysret64);

8
arch/x86/kernel/resource.c
View File

@@ -37,10 +37,12 @@ static void remove_e820_regions(struct resource *avail)
void arch_remove_reservations(struct resource *avail)
{
/* Trim out BIOS areas (low 1MB and high 2MB) and E820 regions */
/*
* Trim out BIOS area (high 2MB) and E820 regions. We do not remove
* the low 1MB unconditionally, as this area is needed for some ISA
* cards requiring a memory range, e.g. the i82365 PCMCIA controller.
*/
if (avail->flags & IORESOURCE_MEM) {
if (avail->start < BIOS_END)
avail->start = BIOS_END;
resource_clip(avail, BIOS_ROM_BASE, BIOS_ROM_END);
remove_e820_regions(avail);

7
arch/x86/kernel/smpboot.c
View File

@@ -264,6 +264,13 @@ static void notrace start_secondary(void *unused)
*/
check_tsc_sync_target();
/*
* Enable the espfix hack for this CPU
*/
#ifdef CONFIG_X86_ESPFIX64
init_espfix_ap();
#endif
/*
* We need to hold vector_lock so there the set of online cpus
* does not change while we are assigning vectors to cpus. Holding

8
arch/x86/kernel/vsyscall_64.c
View File

@@ -125,10 +125,10 @@ static void warn_bad_vsyscall(const char *level, struct pt_regs *regs,
if (!show_unhandled_signals)
return;
pr_notice_ratelimited("%s%s[%d] %s ip:%lx cs:%lx sp:%lx ax:%lx si:%lx di:%lx\n",
level, current->comm, task_pid_nr(current),
message, regs->ip, regs->cs,
regs->sp, regs->ax, regs->si, regs->di);
printk_ratelimited("%s%s[%d] %s ip:%lx cs:%lx sp:%lx ax:%lx si:%lx di:%lx\n",
level, current->comm, task_pid_nr(current),
message, regs->ip, regs->cs,
regs->sp, regs->ax, regs->si, regs->di);
}
static int addr_to_vsyscall_nr(unsigned long addr)

4
arch/x86/kvm/emulate.c
View File

@@ -2012,6 +2012,7 @@ static int em_ret_far(struct x86_emulate_ctxt *ctxt)
{
int rc;
unsigned long cs;
int cpl = ctxt->ops->cpl(ctxt);
rc = emulate_pop(ctxt, &ctxt->_eip, ctxt->op_bytes);
if (rc != X86EMUL_CONTINUE)
@@ -2021,6 +2022,9 @@ static int em_ret_far(struct x86_emulate_ctxt *ctxt)
rc = emulate_pop(ctxt, &cs, ctxt->op_bytes);
if (rc != X86EMUL_CONTINUE)
return rc;
/* Outer-privilege level return is not implemented */
if (ctxt->mode >= X86EMUL_MODE_PROT16 && (cs & 3) > cpl)
return X86EMUL_UNHANDLEABLE;
rc = load_segment_descriptor(ctxt, (u16)cs, VCPU_SREG_CS);
return rc;
}

29
arch/x86/mm/dump_pagetables.c
View File

@@ -30,11 +30,13 @@ struct pg_state {
unsigned long start_address;
unsigned long current_address;
const struct addr_marker *marker;
unsigned long lines;
};
struct addr_marker {
unsigned long start_address;
const char *name;
unsigned long max_lines;
};
/* indices for address_markers; keep sync'd w/ address_markers below */
@@ -45,6 +47,7 @@ enum address_markers_idx {
LOW_KERNEL_NR,
VMALLOC_START_NR,
VMEMMAP_START_NR,
ESPFIX_START_NR,
HIGH_KERNEL_NR,
MODULES_VADDR_NR,
MODULES_END_NR,
@@ -67,6 +70,7 @@ static struct addr_marker address_markers[] = {
{ PAGE_OFFSET, "Low Kernel Mapping" },
{ VMALLOC_START, "vmalloc() Area" },
{ VMEMMAP_START, "Vmemmap" },
{ ESPFIX_BASE_ADDR, "ESPfix Area", 16 },
{ __START_KERNEL_map, "High Kernel Mapping" },
{ MODULES_VADDR, "Modules" },
{ MODULES_END, "End Modules" },
@@ -163,7 +167,7 @@ static void note_page(struct seq_file *m, struct pg_state *st,
pgprot_t new_prot, int level)
{
pgprotval_t prot, cur;
static const char units[] = "KMGTPE";
static const char units[] = "BKMGTPE";
/*
* If we have a "break" in the series, we need to flush the state that
@@ -178,6 +182,7 @@ static void note_page(struct seq_file *m, struct pg_state *st,
st->current_prot = new_prot;
st->level = level;
st->marker = address_markers;
st->lines = 0;
seq_printf(m, "---[ %s ]---\n", st->marker->name);
} else if (prot != cur || level != st->level ||
st->current_address >= st->marker[1].start_address) {
@@ -188,17 +193,21 @@ static void note_page(struct seq_file *m, struct pg_state *st,
/*
* Now print the actual finished series
*/
seq_printf(m, "0x%0*lx-0x%0*lx ",
width, st->start_address,
width, st->current_address);
if (!st->marker->max_lines ||
st->lines < st->marker->max_lines) {
seq_printf(m, "0x%0*lx-0x%0*lx ",
width, st->start_address,
width, st->current_address);
delta = (st->current_address - st->start_address) >> 10;
while (!(delta & 1023) && unit[1]) {
delta >>= 10;
unit++;
delta = (st->current_address - st->start_address) >> 10;
while (!(delta & 1023) && unit[1]) {
delta >>= 10;
unit++;
}
seq_printf(m, "%9lu%c ", delta, *unit);
printk_prot(m, st->current_prot, st->level);
}
seq_printf(m, "%9lu%c ", delta, *unit);
printk_prot(m, st->current_prot, st->level);
st->lines++;
/*
* We print markers for special areas of address space,

4
arch/x86/pci/i386.c
View File

@@ -162,6 +162,10 @@ pcibios_align_resource(void *data, const struct resource *res,
return start;
if (start & 0x300)
start = (start + 0x3ff) & ~0x3ff;
} else if (res->flags & IORESOURCE_MEM) {
/* The low 1MB range is reserved for ISA cards */
if (start < BIOS_END)
start = BIOS_END;
}
return start;
}

8
arch/x86/vdso/vdso32-setup.c
View File

@@ -41,7 +41,6 @@ enum {
#ifdef CONFIG_X86_64
#define vdso_enabled sysctl_vsyscall32
#define arch_setup_additional_pages syscall32_setup_pages
extern int sysctl_ldt16;
#endif
/*
@@ -381,13 +380,6 @@ static struct ctl_table abi_table2[] = {
.mode = 0644,
.proc_handler = proc_dointvec
},
{
.procname = "ldt16",
.data = &sysctl_ldt16,
.maxlen = sizeof(int),
.mode = 0644,
.proc_handler = proc_dointvec
},
{}
};

2
arch/x86/xen/time.c
View File

@@ -445,7 +445,7 @@ void xen_setup_timer(int cpu)
irq = bind_virq_to_irqhandler(VIRQ_TIMER, cpu, xen_timer_interrupt,
IRQF_DISABLED|IRQF_PERCPU|
IRQF_NOBALANCING|IRQF_TIMER|
IRQF_FORCE_RESUME,
IRQF_FORCE_RESUME|IRQF_EARLY_RESUME,
name, NULL);
memcpy(evt, xen_clockevent, sizeof(*evt));

158
arch/xtensa/kernel/vectors.S
View File

@@ -376,38 +376,42 @@ _DoubleExceptionVector_WindowOverflow:
beqz a2, 1f # if at start of vector, don't restore
addi a0, a0, -128
bbsi a0, 8, 1f # don't restore except for overflow 8 and 12
bbsi a0, 7, 2f
bbsi.l a0, 8, 1f # don't restore except for overflow 8 and 12
/*
* This fixup handler is for the extremely unlikely case where the
* overflow handler's reference thru a0 gets a hardware TLB refill
* that bumps out the (distinct, aliasing) TLB entry that mapped its
* prior references thru a9/a13, and where our reference now thru
* a9/a13 gets a 2nd-level miss exception (not hardware TLB refill).
*/
movi a2, window_overflow_restore_a0_fixup
s32i a2, a3, EXC_TABLE_FIXUP
l32i a2, a3, EXC_TABLE_DOUBLE_SAVE
xsr a3, excsave1
bbsi.l a0, 7, 2f
/*
* Restore a0 as saved by _WindowOverflow8().
*
* FIXME: we really need a fixup handler for this L32E,
* for the extremely unlikely case where the overflow handler's
* reference thru a0 gets a hardware TLB refill that bumps out
* the (distinct, aliasing) TLB entry that mapped its prior
* references thru a9, and where our reference now thru a9
* gets a 2nd-level miss exception (not hardware TLB refill).
*/
l32e a2, a9, -16
wsr a2, depc # replace the saved a0
j 1f
l32e a0, a9, -16
wsr a0, depc # replace the saved a0
j 3f
2:
/*
* Restore a0 as saved by _WindowOverflow12().
*
* FIXME: we really need a fixup handler for this L32E,
* for the extremely unlikely case where the overflow handler's
* reference thru a0 gets a hardware TLB refill that bumps out
* the (distinct, aliasing) TLB entry that mapped its prior
* references thru a13, and where our reference now thru a13
* gets a 2nd-level miss exception (not hardware TLB refill).
*/
l32e a2, a13, -16
wsr a2, depc # replace the saved a0
l32e a0, a13, -16
wsr a0, depc # replace the saved a0
3:
xsr a3, excsave1
movi a0, 0
s32i a0, a3, EXC_TABLE_FIXUP
s32i a2, a3, EXC_TABLE_DOUBLE_SAVE
1:
/*
* Restore WindowBase while leaving all address registers restored.
@@ -449,6 +453,7 @@ _DoubleExceptionVector_WindowOverflow:
s32i a0, a2, PT_DEPC
_DoubleExceptionVector_handle_exception:
addx4 a0, a0, a3
l32i a0, a0, EXC_TABLE_FAST_USER
xsr a3, excsave1
@@ -464,10 +469,119 @@ _DoubleExceptionVector_WindowOverflow:
rotw -3
j 1b
.end literal_prefix
ENDPROC(_DoubleExceptionVector)
/*
* Fixup handler for TLB miss in double exception handler for window owerflow.
* We get here with windowbase set to the window that was being spilled and
* a0 trashed. a0 bit 7 determines if this is a call8 (bit clear) or call12
* (bit set) window.
*
* We do the following here:
* - go to the original window retaining a0 value;
* - set up exception stack to return back to appropriate a0 restore code
* (we'll need to rotate window back and there's no place to save this
* information, use different return address for that);
* - handle the exception;
* - go to the window that was being spilled;
* - set up window_overflow_restore_a0_fixup as a fixup routine;
* - reload a0;
* - restore the original window;
* - reset the default fixup routine;
* - return to user. By the time we get to this fixup handler all information
* about the conditions of the original double exception that happened in
* the window overflow handler is lost, so we just return to userspace to
* retry overflow from start.
*
* a0: value of depc, original value in depc
* a2: trashed, original value in EXC_TABLE_DOUBLE_SAVE
* a3: exctable, original value in excsave1
*/
ENTRY(window_overflow_restore_a0_fixup)
rsr a0, ps
extui a0, a0, PS_OWB_SHIFT, PS_OWB_WIDTH
rsr a2, windowbase
sub a0, a2, a0
extui a0, a0, 0, 3
l32i a2, a3, EXC_TABLE_DOUBLE_SAVE
xsr a3, excsave1
_beqi a0, 1, .Lhandle_1
_beqi a0, 3, .Lhandle_3
.macro overflow_fixup_handle_exception_pane n
rsr a0, depc
rotw -\n
xsr a3, excsave1
wsr a2, depc
l32i a2, a3, EXC_TABLE_KSTK
s32i a0, a2, PT_AREG0
movi a0, .Lrestore_\n
s32i a0, a2, PT_DEPC
rsr a0, exccause
j _DoubleExceptionVector_handle_exception
.endm
overflow_fixup_handle_exception_pane 2
.Lhandle_1:
overflow_fixup_handle_exception_pane 1
.Lhandle_3:
overflow_fixup_handle_exception_pane 3
.macro overflow_fixup_restore_a0_pane n
rotw \n
/* Need to preserve a0 value here to be able to handle exception
* that may occur on a0 reload from stack. It may occur because
* TLB miss handler may not be atomic and pointer to page table
* may be lost before we get here. There are no free registers,
* so we need to use EXC_TABLE_DOUBLE_SAVE area.
*/
xsr a3, excsave1
s32i a2, a3, EXC_TABLE_DOUBLE_SAVE
movi a2, window_overflow_restore_a0_fixup
s32i a2, a3, EXC_TABLE_FIXUP
l32i a2, a3, EXC_TABLE_DOUBLE_SAVE
xsr a3, excsave1
bbsi.l a0, 7, 1f
l32e a0, a9, -16
j 2f
1:
l32e a0, a13, -16
2:
rotw -\n
.endm
.Lrestore_2:
overflow_fixup_restore_a0_pane 2
.Lset_default_fixup:
xsr a3, excsave1
s32i a2, a3, EXC_TABLE_DOUBLE_SAVE
movi a2, 0
s32i a2, a3, EXC_TABLE_FIXUP
l32i a2, a3, EXC_TABLE_DOUBLE_SAVE
xsr a3, excsave1
rfe
.Lrestore_1:
overflow_fixup_restore_a0_pane 1
j .Lset_default_fixup
.Lrestore_3:
overflow_fixup_restore_a0_pane 3
j .Lset_default_fixup
ENDPROC(window_overflow_restore_a0_fixup)
.end literal_prefix
/*
* Debug interrupt vector
*

4
arch/xtensa/kernel/vmlinux.lds.S
View File

@@ -262,13 +262,13 @@ SECTIONS
.UserExceptionVector.literal)
SECTION_VECTOR (_DoubleExceptionVector_literal,
.DoubleExceptionVector.literal,
DOUBLEEXC_VECTOR_VADDR - 16,
DOUBLEEXC_VECTOR_VADDR - 40,
SIZEOF(.UserExceptionVector.text),
.UserExceptionVector.text)
SECTION_VECTOR (_DoubleExceptionVector_text,
.DoubleExceptionVector.text,
DOUBLEEXC_VECTOR_VADDR,
32,
40,
.DoubleExceptionVector.literal)
. = (LOADADDR( .DoubleExceptionVector.text ) + SIZEOF( .DoubleExceptionVector.text ) + 3) & ~ 3;

7
block/blk-cgroup.c
View File

@@ -859,6 +859,13 @@ void blkcg_drain_queue(struct request_queue *q)
{
lockdep_assert_held(q->queue_lock);
/*
* @q could be exiting and already have destroyed all blkgs as
* indicated by NULL root_blkg. If so, don't confuse policies.
*/
if (!q->root_blkg)
return;
blk_throtl_drain(q);
}

33
block/blk-tag.c
View File

@@ -27,18 +27,15 @@ struct request *blk_queue_find_tag(struct request_queue *q, int tag)
EXPORT_SYMBOL(blk_queue_find_tag);
/**
* __blk_free_tags - release a given set of tag maintenance info
* blk_free_tags - release a given set of tag maintenance info
* @bqt: the tag map to free
*
* Tries to free the specified @bqt. Returns true if it was
* actually freed and false if there are still references using it
* Drop the reference count on @bqt and frees it when the last reference
* is dropped.
*/
static int __blk_free_tags(struct blk_queue_tag *bqt)
void blk_free_tags(struct blk_queue_tag *bqt)
{
int retval;
retval = atomic_dec_and_test(&bqt->refcnt);
if (retval) {
if (atomic_dec_and_test(&bqt->refcnt)) {
BUG_ON(find_first_bit(bqt->tag_map, bqt->max_depth) <
bqt->max_depth);
@@ -50,9 +47,8 @@ static int __blk_free_tags(struct blk_queue_tag *bqt)
kfree(bqt);
}
return retval;
}
EXPORT_SYMBOL(blk_free_tags);
/**
* __blk_queue_free_tags - release tag maintenance info
@@ -69,27 +65,12 @@ void __blk_queue_free_tags(struct request_queue *q)
if (!bqt)
return;
__blk_free_tags(bqt);
blk_free_tags(bqt);
q->queue_tags = NULL;
queue_flag_clear_unlocked(QUEUE_FLAG_QUEUED, q);
}
/**
* blk_free_tags - release a given set of tag maintenance info
* @bqt: the tag map to free
*
* For externally managed @bqt frees the map. Callers of this
* function must guarantee to have released all the queues that
* might have been using this tag map.
*/
void blk_free_tags(struct blk_queue_tag *bqt)
{
if (unlikely(!__blk_free_tags(bqt)))
BUG();
}
EXPORT_SYMBOL(blk_free_tags);
/**
* blk_queue_free_tags - release tag maintenance info
* @q: the request queue for the device

1
block/compat_ioctl.c
View File

@@ -690,6 +690,7 @@ long compat_blkdev_ioctl(struct file *file, unsigned cmd, unsigned long arg)
case BLKROSET:
case BLKDISCARD:
case BLKSECDISCARD:
case BLKZEROOUT:
/*
* the ones below are implemented in blkdev_locked_ioctl,
* but we call blkdev_ioctl, which gets the lock for us

2
crypto/af_alg.c
View File

@@ -21,6 +21,7 @@
#include <linux/module.h>
#include <linux/net.h>
#include <linux/rwsem.h>
#include <linux/security.h>
struct alg_type_list {
const struct af_alg_type *type;
@@ -243,6 +244,7 @@ int af_alg_accept(struct sock *sk, struct socket *newsock)
sock_init_data(newsock, sk2);
sock_graft(sk2, newsock);
security_sk_clone(sk, sk2);
err = type->accept(ask->private, sk2);
if (err) {

10
drivers/acpi/resource.c
View File

@@ -77,7 +77,7 @@ bool acpi_dev_resource_memory(struct acpi_resource *ares, struct resource *res)
switch (ares->type) {
case ACPI_RESOURCE_TYPE_MEMORY24:
memory24 = &ares->data.memory24;
if (!memory24->address_length)
if (!memory24->minimum && !memory24->address_length)
return false;
acpi_dev_get_memresource(res, memory24->minimum,
memory24->address_length,
@@ -85,7 +85,7 @@ bool acpi_dev_resource_memory(struct acpi_resource *ares, struct resource *res)
break;
case ACPI_RESOURCE_TYPE_MEMORY32:
memory32 = &ares->data.memory32;
if (!memory32->address_length)
if (!memory32->minimum && !memory32->address_length)
return false;
acpi_dev_get_memresource(res, memory32->minimum,
memory32->address_length,
@@ -93,7 +93,7 @@ bool acpi_dev_resource_memory(struct acpi_resource *ares, struct resource *res)
break;
case ACPI_RESOURCE_TYPE_FIXED_MEMORY32:
fixed_memory32 = &ares->data.fixed_memory32;
if (!fixed_memory32->address_length)
if (!fixed_memory32->address && !fixed_memory32->address_length)
return false;
acpi_dev_get_memresource(res, fixed_memory32->address,
fixed_memory32->address_length,
@@ -150,7 +150,7 @@ bool acpi_dev_resource_io(struct acpi_resource *ares, struct resource *res)
switch (ares->type) {
case ACPI_RESOURCE_TYPE_IO:
io = &ares->data.io;
if (!io->address_length)
if (!io->minimum && !io->address_length)
return false;
acpi_dev_get_ioresource(res, io->minimum,
io->address_length,
@@ -158,7 +158,7 @@ bool acpi_dev_resource_io(struct acpi_resource *ares, struct resource *res)
break;
case ACPI_RESOURCE_TYPE_FIXED_IO:
fixed_io = &ares->data.fixed_io;
if (!fixed_io->address_length)
if (!fixed_io->address && !fixed_io->address_length)
return false;
acpi_dev_get_ioresource(res, fixed_io->address,
fixed_io->address_length,

1
drivers/ata/ahci.c
View File

@@ -455,6 +455,7 @@ static const struct pci_device_id ahci_pci_tbl[] = {
/* Promise */
{ PCI_VDEVICE(PROMISE, 0x3f20), board_ahci }, /* PDC42819 */
{ PCI_VDEVICE(PROMISE, 0x3781), board_ahci }, /* FastTrak TX8660 ahci-mode */
/* Asmedia */
{ PCI_VDEVICE(ASMEDIA, 0x0601), board_ahci }, /* ASM1060 */

12
drivers/ata/libata-core.c
View File

@@ -4787,6 +4787,10 @@ void swap_buf_le16(u16 *buf, unsigned int buf_words)
* ata_qc_new - Request an available ATA command, for queueing
* @ap: target port
*
* Some ATA host controllers may implement a queue depth which is less
* than ATA_MAX_QUEUE. So we shouldn't allocate a tag which is beyond
* the hardware limitation.
*
* LOCKING:
* None.
*/
@@ -4794,14 +4798,15 @@ void swap_buf_le16(u16 *buf, unsigned int buf_words)
static struct ata_queued_cmd *ata_qc_new(struct ata_port *ap)
{
struct ata_queued_cmd *qc = NULL;
unsigned int max_queue = ap->host->n_tags;
unsigned int i, tag;
/* no command while frozen */
if (unlikely(ap->pflags & ATA_PFLAG_FROZEN))
return NULL;
for (i = 0; i < ATA_MAX_QUEUE; i++) {
tag = (i + ap->last_tag + 1) % ATA_MAX_QUEUE;
for (i = 0, tag = ap->last_tag + 1; i < max_queue; i++, tag++) {
tag = tag < max_queue ? tag : 0;
/* the last tag is reserved for internal command. */
if (tag == ATA_TAG_INTERNAL)
@@ -6103,6 +6108,7 @@ void ata_host_init(struct ata_host *host, struct device *dev,
{
spin_lock_init(&host->lock);
mutex_init(&host->eh_mutex);
host->n_tags = ATA_MAX_QUEUE - 1;
host->dev = dev;
host->ops = ops;
}
@@ -6184,6 +6190,8 @@ int ata_host_register(struct ata_host *host, struct scsi_host_template *sht)
{
int i, rc;
host->n_tags = clamp(sht->can_queue, 1, ATA_MAX_QUEUE - 1);
/* host must have been started */
if (!(host->flags & ATA_HOST_STARTED)) {
dev_err(host->dev, "BUG: trying to register unstarted host\n");

1
drivers/bluetooth/hci_h5.c
View File

@@ -406,6 +406,7 @@ static int h5_rx_3wire_hdr(struct hci_uart *hu, unsigned char c)
H5_HDR_PKT_TYPE(hdr) != HCI_3WIRE_LINK_PKT) {
BT_ERR("Non-link packet received in non-active state");
h5_reset_rx(h5);
return 0;
}
h5->rx_func = h5_rx_payload;

1
drivers/char/tpm/tpm_i2c_stm_st33.c
View File

@@ -750,6 +750,7 @@ tpm_st33_i2c_probe(struct i2c_client *client, const struct i2c_device_id *id)
}
tpm_get_timeouts(chip);
tpm_do_selftest(chip);
i2c_set_clientdata(client, chip);

25
drivers/crypto/ux500/cryp/cryp_core.c
View File

@@ -190,7 +190,7 @@ static void add_session_id(struct cryp_ctx *ctx)
static irqreturn_t cryp_interrupt_handler(int irq, void *param)
{
struct cryp_ctx *ctx;
int i;
int count;
struct cryp_device_data *device_data;
if (param == NULL) {
@@ -215,12 +215,11 @@ static irqreturn_t cryp_interrupt_handler(int irq, void *param)
if (cryp_pending_irq_src(device_data,
CRYP_IRQ_SRC_OUTPUT_FIFO)) {
if (ctx->outlen / ctx->blocksize > 0) {
for (i = 0; i < ctx->blocksize / 4; i++) {
*(ctx->outdata) = readl_relaxed(
&device_data->base->dout);
ctx->outdata += 4;
ctx->outlen -= 4;
}
count = ctx->blocksize / 4;
readsl(&device_data->base->dout, ctx->outdata, count);
ctx->outdata += count;
ctx->outlen -= count;
if (ctx->outlen == 0) {
cryp_disable_irq_src(device_data,
@@ -230,12 +229,12 @@ static irqreturn_t cryp_interrupt_handler(int irq, void *param)
} else if (cryp_pending_irq_src(device_data,
CRYP_IRQ_SRC_INPUT_FIFO)) {
if (ctx->datalen / ctx->blocksize > 0) {
for (i = 0 ; i < ctx->blocksize / 4; i++) {
writel_relaxed(ctx->indata,
&device_data->base->din);
ctx->indata += 4;
ctx->datalen -= 4;
}
count = ctx->blocksize / 4;
writesl(&device_data->base->din, ctx->indata, count);
ctx->indata += count;
ctx->datalen -= count;
if (ctx->datalen == 0)
cryp_disable_irq_src(device_data,

735
drivers/dma/bcm2708-dmaengine.c
View File

File diff suppressed because it is too large Load Diff

6
drivers/gpu/drm/omapdrm/omap_dmm_tiler.c
View File

@@ -199,7 +199,7 @@ static struct dmm_txn *dmm_txn_init(struct dmm *dmm, struct tcm *tcm)
static void dmm_txn_append(struct dmm_txn *txn, struct pat_area *area,
struct page **pages, uint32_t npages, uint32_t roll)
{
dma_addr_t pat_pa = 0;
dma_addr_t pat_pa = 0, data_pa = 0;
uint32_t *data;
struct pat *pat;
struct refill_engine *engine = txn->engine_handle;
@@ -223,7 +223,9 @@ static void dmm_txn_append(struct dmm_txn *txn, struct pat_area *area,
.lut_id = engine->tcm->lut_id,
};
data = alloc_dma(txn, 4*i, &pat->data_pa);
data = alloc_dma(txn, 4*i, &data_pa);
/* FIXME: what if data_pa is more than 32-bit ? */
pat->data_pa = data_pa;
while (i--) {
int n = i + roll;

10
drivers/gpu/drm/omapdrm/omap_gem.c
View File

@@ -791,7 +791,7 @@ int omap_gem_get_paddr(struct drm_gem_object *obj,
omap_obj->paddr = tiler_ssptr(block);
omap_obj->block = block;
DBG("got paddr: %08x", omap_obj->paddr);
DBG("got paddr: %pad", &omap_obj->paddr);
}
omap_obj->paddr_cnt++;
@@ -988,9 +988,9 @@ void omap_gem_describe(struct drm_gem_object *obj, struct seq_file *m)
off = drm_vma_node_start(&obj->vma_node);
seq_printf(m, "%08x: %2d (%2d) %08llx %08Zx (%2d) %p %4d",
seq_printf(m, "%08x: %2d (%2d) %08llx %pad (%2d) %p %4d",
omap_obj->flags, obj->name, obj->refcount.refcount.counter,
off, omap_obj->paddr, omap_obj->paddr_cnt,
off, &omap_obj->paddr, omap_obj->paddr_cnt,
omap_obj->vaddr, omap_obj->roll);
if (omap_obj->flags & OMAP_BO_TILED) {
@@ -1473,8 +1473,8 @@ void omap_gem_init(struct drm_device *dev)
entry->paddr = tiler_ssptr(block);
entry->block = block;
DBG("%d:%d: %dx%d: paddr=%08x stride=%d", i, j, w, h,
entry->paddr,
DBG("%d:%d: %dx%d: paddr=%pad stride=%d", i, j, w, h,
&entry->paddr,
usergart[i].stride_pfn << PAGE_SHIFT);
}
}

4
drivers/gpu/drm/omapdrm/omap_plane.c
View File

@@ -142,8 +142,8 @@ static void omap_plane_pre_apply(struct omap_drm_apply *apply)
DBG("%dx%d -> %dx%d (%d)", info->width, info->height,
info->out_width, info->out_height,
info->screen_width);
DBG("%d,%d %08x %08x", info->pos_x, info->pos_y,
info->paddr, info->p_uv_addr);
DBG("%d,%d %pad %pad", info->pos_x, info->pos_y,
&info->paddr, &info->p_uv_addr);
/* TODO: */
ilace = false;

3
drivers/gpu/drm/qxl/qxl_irq.c
View File

@@ -33,6 +33,9 @@ irqreturn_t qxl_irq_handler(DRM_IRQ_ARGS)
pending = xchg(&qdev->ram_header->int_pending, 0);
if (!pending)
return IRQ_NONE;
atomic_inc(&qdev->irq_received);
if (pending & QXL_INTERRUPT_DISPLAY) {

10
drivers/gpu/drm/radeon/atombios_encoders.c
View File

@@ -183,7 +183,6 @@ void radeon_atom_backlight_init(struct radeon_encoder *radeon_encoder,
struct backlight_properties props;
struct radeon_backlight_privdata *pdata;
struct radeon_encoder_atom_dig *dig;
u8 backlight_level;
char bl_name[16];
/* Mac laptops with multiple GPUs use the gmux driver for backlight
@@ -222,12 +221,17 @@ void radeon_atom_backlight_init(struct radeon_encoder *radeon_encoder,
pdata->encoder = radeon_encoder;
backlight_level = radeon_atom_get_backlight_level_from_reg(rdev);
dig = radeon_encoder->enc_priv;
dig->bl_dev = bd;
bd->props.brightness = radeon_atom_backlight_get_brightness(bd);
/* Set a reasonable default here if the level is 0 otherwise
* fbdev will attempt to turn the backlight on after console
* unblanking and it will try and restore 0 which turns the backlight
* off again.
*/
if (bd->props.brightness == 0)
bd->props.brightness = RADEON_MAX_BL_LEVEL;
bd->props.power = FB_BLANK_UNBLANK;
backlight_update_status(bd);

2
drivers/gpu/drm/radeon/cik.c
View File

@@ -2745,6 +2745,7 @@ static void cik_gpu_init(struct radeon_device *rdev)
(rdev->pdev->device == 0x130B) ||
(rdev->pdev->device == 0x130E) ||
(rdev->pdev->device == 0x1315) ||
(rdev->pdev->device == 0x1318) ||
(rdev->pdev->device == 0x131B)) {
rdev->config.cik.max_cu_per_sh = 4;
rdev->config.cik.max_backends_per_se = 1;
@@ -6554,6 +6555,7 @@ static inline u32 cik_get_ih_wptr(struct radeon_device *rdev)
tmp = RREG32(IH_RB_CNTL);
tmp |= IH_WPTR_OVERFLOW_CLEAR;
WREG32(IH_RB_CNTL, tmp);
wptr &= ~RB_OVERFLOW;
}
return (wptr & rdev->ih.ptr_mask);
}

1
drivers/gpu/drm/radeon/evergreen.c
View File

@@ -4664,6 +4664,7 @@ static u32 evergreen_get_ih_wptr(struct radeon_device *rdev)
tmp = RREG32(IH_RB_CNTL);
tmp |= IH_WPTR_OVERFLOW_CLEAR;
WREG32(IH_RB_CNTL, tmp);
wptr &= ~RB_OVERFLOW;
}
return (wptr & rdev->ih.ptr_mask);
}

1
drivers/gpu/drm/radeon/r600.c
View File

@@ -3657,6 +3657,7 @@ static u32 r600_get_ih_wptr(struct radeon_device *rdev)
tmp = RREG32(IH_RB_CNTL);
tmp |= IH_WPTR_OVERFLOW_CLEAR;
WREG32(IH_RB_CNTL, tmp);
wptr &= ~RB_OVERFLOW;
}
return (wptr & rdev->ih.ptr_mask);
}

5
drivers/gpu/drm/radeon/radeon_display.c
View File

@@ -708,6 +708,10 @@ int radeon_ddc_get_modes(struct radeon_connector *radeon_connector)
struct radeon_device *rdev = dev->dev_private;
int ret = 0;
/* don't leak the edid if we already fetched it in detect() */
if (radeon_connector->edid)
goto got_edid;
/* on hw with routers, select right port */
if (radeon_connector->router.ddc_valid)
radeon_router_select_ddc_port(radeon_connector);
@@ -747,6 +751,7 @@ int radeon_ddc_get_modes(struct radeon_connector *radeon_connector)
radeon_connector->edid = radeon_bios_get_hardcoded_edid(rdev);
}
if (radeon_connector->edid) {
got_edid:
drm_mode_connector_update_edid_property(&radeon_connector->base, radeon_connector->edid);
ret = drm_add_edid_modes(&radeon_connector->base, radeon_connector->edid);
drm_edid_to_eld(&radeon_connector->base, radeon_connector->edid);

1
drivers/gpu/drm/radeon/si.c
View File

@@ -6041,6 +6041,7 @@ static inline u32 si_get_ih_wptr(struct radeon_device *rdev)
tmp = RREG32(IH_RB_CNTL);
tmp |= IH_WPTR_OVERFLOW_CLEAR;
WREG32(IH_RB_CNTL, tmp);
wptr &= ~RB_OVERFLOW;
}
return (wptr & rdev->ih.ptr_mask);
}

2
drivers/hid/hid-cherry.c
View File

@@ -28,7 +28,7 @@
static __u8 *ch_report_fixup(struct hid_device *hdev, __u8 *rdesc,
unsigned int *rsize)
{
if (*rsize >= 17 && rdesc[11] == 0x3c && rdesc[12] == 0x02) {
if (*rsize >= 18 && rdesc[11] == 0x3c && rdesc[12] == 0x02) {
hid_info(hdev, "fixing up Cherry Cymotion report descriptor\n");
rdesc[11] = rdesc[16] = 0xff;
rdesc[12] = rdesc[17] = 0x03;

1
drivers/hid/hid-ids.h
View File

@@ -457,6 +457,7 @@
#define USB_DEVICE_ID_HOLTEK_ALT_MOUSE_A067 0xa067
#define USB_DEVICE_ID_HOLTEK_ALT_MOUSE_A072 0xa072
#define USB_DEVICE_ID_HOLTEK_ALT_MOUSE_A081 0xa081
#define USB_DEVICE_ID_HOLTEK_ALT_KEYBOARD_A096 0xa096
#define USB_VENDOR_ID_IMATION 0x0718
#define USB_DEVICE_ID_DISC_STAKKA 0xd000

2
drivers/hid/hid-kye.c
View File

@@ -300,7 +300,7 @@ static __u8 *kye_report_fixup(struct hid_device *hdev, __u8 *rdesc,
* - change the button usage range to 4-7 for the extra
* buttons
*/
if (*rsize >= 74 &&
if (*rsize >= 75 &&
rdesc[61] == 0x05 && rdesc[62] == 0x08 &&
rdesc[63] == 0x19 && rdesc[64] == 0x08 &&
rdesc[65] == 0x29 && rdesc[66] == 0x0f &&

4
drivers/hid/hid-lg.c
View File

@@ -345,14 +345,14 @@ static __u8 *lg_report_fixup(struct hid_device *hdev, __u8 *rdesc,
struct usb_device_descriptor *udesc;
__u16 bcdDevice, rev_maj, rev_min;
if ((drv_data->quirks & LG_RDESC) && *rsize >= 90 && rdesc[83] == 0x26 &&
if ((drv_data->quirks & LG_RDESC) && *rsize >= 91 && rdesc[83] == 0x26 &&
rdesc[84] == 0x8c && rdesc[85] == 0x02) {
hid_info(hdev,
"fixing up Logitech keyboard report descriptor\n");
rdesc[84] = rdesc[89] = 0x4d;
rdesc[85] = rdesc[90] = 0x10;
}
if ((drv_data->quirks & LG_RDESC_REL_ABS) && *rsize >= 50 &&
if ((drv_data->quirks & LG_RDESC_REL_ABS) && *rsize >= 51 &&
rdesc[32] == 0x81 && rdesc[33] == 0x06 &&
rdesc[49] == 0x81 && rdesc[50] == 0x06) {
hid_info(hdev,

21
drivers/hid/hid-logitech-dj.c
View File

@@ -237,13 +237,6 @@ static void logi_dj_recv_add_djhid_device(struct dj_receiver_dev *djrcv_dev,
return;
}
if ((dj_report->device_index < DJ_DEVICE_INDEX_MIN) ||
(dj_report->device_index > DJ_DEVICE_INDEX_MAX)) {
dev_err(&djrcv_hdev->dev, "%s: invalid device index:%d\n",
__func__, dj_report->device_index);
return;
}
if (djrcv_dev->paired_dj_devices[dj_report->device_index]) {
/* The device is already known. No need to reallocate it. */
dbg_hid("%s: device is already known\n", __func__);
@@ -516,6 +509,14 @@ static int logi_dj_recv_switch_to_dj_mode(struct dj_receiver_dev *djrcv_dev,
dj_report->report_params[CMD_SWITCH_PARAM_TIMEOUT_SECONDS] = (u8)timeout;
retval = logi_dj_recv_send_report(djrcv_dev, dj_report);
kfree(dj_report);
/*
* Ugly sleep to work around a USB 3.0 bug when the receiver is still
* processing the "switch-to-dj" command while we send an other command.
* 50 msec should gives enough time to the receiver to be ready.
*/
msleep(50);
return retval;
}
@@ -713,6 +714,12 @@ static int logi_dj_raw_event(struct hid_device *hdev,
* device (via hid_input_report() ) and return 1 so hid-core does not do
* anything else with it.
*/
if ((dj_report->device_index < DJ_DEVICE_INDEX_MIN) ||
(dj_report->device_index > DJ_DEVICE_INDEX_MAX)) {
dev_err(&hdev->dev, "%s: invalid device index:%d\n",
__func__, dj_report->device_index);
return false;
}
spin_lock_irqsave(&djrcv_dev->lock, flags);
if (dj_report->report_id == REPORT_ID_DJ_SHORT) {

2
drivers/hid/hid-monterey.c
View File

@@ -24,7 +24,7 @@
static __u8 *mr_report_fixup(struct hid_device *hdev, __u8 *rdesc,
unsigned int *rsize)
{
if (*rsize >= 30 && rdesc[29] == 0x05 && rdesc[30] == 0x09) {
if (*rsize >= 31 && rdesc[29] == 0x05 && rdesc[30] == 0x09) {
hid_info(hdev, "fixing up button/consumer in HID report descriptor\n");
rdesc[30] = 0x0c;
}

2
drivers/hid/hid-petalynx.c
View File

@@ -25,7 +25,7 @@
static __u8 *pl_report_fixup(struct hid_device *hdev, __u8 *rdesc,
unsigned int *rsize)
{
if (*rsize >= 60 && rdesc[39] == 0x2a && rdesc[40] == 0xf5 &&
if (*rsize >= 62 && rdesc[39] == 0x2a && rdesc[40] == 0xf5 &&
rdesc[41] == 0x00 && rdesc[59] == 0x26 &&
rdesc[60] == 0xf9 && rdesc[61] == 0x00) {
hid_info(hdev, "fixing up Petalynx Maxter Remote report descriptor\n");

2
drivers/hid/hid-sunplus.c
View File

@@ -24,7 +24,7 @@
static __u8 *sp_report_fixup(struct hid_device *hdev, __u8 *rdesc,
unsigned int *rsize)
{
if (*rsize >= 107 && rdesc[104] == 0x26 && rdesc[105] == 0x80 &&
if (*rsize >= 112 && rdesc[104] == 0x26 && rdesc[105] == 0x80 &&
rdesc[106] == 0x03) {
hid_info(hdev, "fixing up Sunplus Wireless Desktop report descriptor\n");
rdesc[105] = rdesc[110] = 0x03;

1
drivers/hid/usbhid/hid-quirks.c
View File

@@ -120,6 +120,7 @@ static const struct hid_blacklist {
{ USB_VENDOR_ID_SYNAPTICS, USB_DEVICE_ID_SYNAPTICS_HD, HID_QUIRK_NO_INIT_REPORTS },
{ USB_VENDOR_ID_SYNAPTICS, USB_DEVICE_ID_SYNAPTICS_QUAD_HD, HID_QUIRK_NO_INIT_REPORTS },
{ USB_VENDOR_ID_SYNAPTICS, USB_DEVICE_ID_SYNAPTICS_TP_V103, HID_QUIRK_NO_INIT_REPORTS },
{ USB_VENDOR_ID_HOLTEK_ALT, USB_DEVICE_ID_HOLTEK_ALT_KEYBOARD_A096, HID_QUIRK_NO_INIT_INPUT_REPORTS },
{ 0, 0 }
};

14
drivers/hv/hv_kvp.c
View File

@@ -127,6 +127,15 @@ kvp_work_func(struct work_struct *dummy)
kvp_respond_to_host(NULL, HV_E_FAIL);
}
static void poll_channel(struct vmbus_channel *channel)
{
unsigned long flags;
spin_lock_irqsave(&channel->inbound_lock, flags);
hv_kvp_onchannelcallback(channel);
spin_unlock_irqrestore(&channel->inbound_lock, flags);
}
static int kvp_handle_handshake(struct hv_kvp_msg *msg)
{
int ret = 1;
@@ -155,7 +164,7 @@ static int kvp_handle_handshake(struct hv_kvp_msg *msg)
kvp_register(dm_reg_value);
kvp_transaction.active = false;
if (kvp_transaction.kvp_context)
hv_kvp_onchannelcallback(kvp_transaction.kvp_context);
poll_channel(kvp_transaction.kvp_context);
}
return ret;
}
@@ -568,6 +577,7 @@ response_done:
vmbus_sendpacket(channel, recv_buffer, buf_len, req_id,
VM_PKT_DATA_INBAND, 0);
poll_channel(channel);
}
@@ -603,7 +613,7 @@ void hv_kvp_onchannelcallback(void *context)
return;
}
vmbus_recvpacket(channel, recv_buffer, PAGE_SIZE * 2, &recvlen,
vmbus_recvpacket(channel, recv_buffer, PAGE_SIZE * 4, &recvlen,
&requestid);
if (recvlen > 0) {

2
drivers/hv/hv_util.c
View File

@@ -312,7 +312,7 @@ static int util_probe(struct hv_device *dev,
(struct hv_util_service *)dev_id->driver_data;
int ret;
srv->recv_buffer = kmalloc(PAGE_SIZE * 2, GFP_KERNEL);
srv->recv_buffer = kmalloc(PAGE_SIZE * 4, GFP_KERNEL);
if (!srv->recv_buffer)
return -ENOMEM;
if (srv->util_init) {

4
drivers/hwmon/ads1015.c
View File

@@ -198,7 +198,7 @@ static int ads1015_get_channels_config_of(struct i2c_client *client)
}
channel = be32_to_cpup(property);
if (channel > ADS1015_CHANNELS) {
if (channel >= ADS1015_CHANNELS) {
dev_err(&client->dev,
"invalid channel index %d on %s\n",
channel, node->full_name);
@@ -212,6 +212,7 @@ static int ads1015_get_channels_config_of(struct i2c_client *client)
dev_err(&client->dev,
"invalid gain on %s\n",
node->full_name);
return -EINVAL;
}
}
@@ -222,6 +223,7 @@ static int ads1015_get_channels_config_of(struct i2c_client *client)
dev_err(&client->dev,
"invalid data_rate on %s\n",
node->full_name);
return -EINVAL;
}
}

6
drivers/hwmon/adt7470.c
View File

@@ -515,7 +515,7 @@ static ssize_t set_temp_min(struct device *dev,
return -EINVAL;
temp = DIV_ROUND_CLOSEST(temp, 1000);
temp = clamp_val(temp, 0, 255);
temp = clamp_val(temp, -128, 127);
mutex_lock(&data->lock);
data->temp_min[attr->index] = temp;
@@ -549,7 +549,7 @@ static ssize_t set_temp_max(struct device *dev,
return -EINVAL;
temp = DIV_ROUND_CLOSEST(temp, 1000);
temp = clamp_val(temp, 0, 255);
temp = clamp_val(temp, -128, 127);
mutex_lock(&data->lock);
data->temp_max[attr->index] = temp;
@@ -826,7 +826,7 @@ static ssize_t set_pwm_tmin(struct device *dev,
return -EINVAL;
temp = DIV_ROUND_CLOSEST(temp, 1000);
temp = clamp_val(temp, 0, 255);
temp = clamp_val(temp, -128, 127);
mutex_lock(&data->lock);
data->pwm_tmin[attr->index] = temp;

17
drivers/hwmon/amc6821.c
View File

@@ -360,11 +360,13 @@ static ssize_t set_pwm1_enable(
if (config)
return config;
mutex_lock(&data->update_lock);
config = i2c_smbus_read_byte_data(client, AMC6821_REG_CONF1);
if (config < 0) {
dev_err(&client->dev,
"Error reading configuration register, aborting.\n");
return config;
count = config;
goto unlock;
}
switch (val) {
@@ -381,14 +383,15 @@ static ssize_t set_pwm1_enable(
config |= AMC6821_CONF1_FDRC1;
break;
default:
return -EINVAL;
count = -EINVAL;
goto unlock;
}
mutex_lock(&data->update_lock);
if (i2c_smbus_write_byte_data(client, AMC6821_REG_CONF1, config)) {
dev_err(&client->dev,
"Configuration register write error, aborting.\n");
count = -EIO;
}
unlock:
mutex_unlock(&data->update_lock);
return count;
}
@@ -493,8 +496,9 @@ static ssize_t set_temp_auto_point_temp(
return -EINVAL;
}
data->valid = 0;
mutex_lock(&data->update_lock);
data->valid = 0;
switch (ix) {
case 0:
ptemp[0] = clamp_val(val / 1000, 0,
@@ -658,13 +662,14 @@ static ssize_t set_fan1_div(
if (config)
return config;
mutex_lock(&data->update_lock);
config = i2c_smbus_read_byte_data(client, AMC6821_REG_CONF4);
if (config < 0) {
dev_err(&client->dev,
"Error reading configuration register, aborting.\n");
return config;
count = config;
goto EXIT;
}
mutex_lock(&data->update_lock);
switch (val) {
case 2:
config &= ~AMC6821_CONF4_PSPR;

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