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Linux 4.10-rc8

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Merge tag 'v4.10-rc8' into drm-next

Linux 4.10-rc8

Backmerge Linus rc8 to fix some conflicts, but also
to avoid pulling it in via a fixes pull from someone.
This commit is contained in:
Dave Airlie 2017-02-23 12:10:12 +10:00
commit 94000cc329
566 changed files with 5236 additions and 3104 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
Documentation/devicetree/bindings/interrupt-controller/snps,archs-idu-intc.txt
View File

@ -15,6 +15,9 @@ Properties:
Second cell specifies the irq distribution mode to cores
0=Round Robin; 1=cpu0, 2=cpu1, 4=cpu2, 8=cpu3
The second cell in interrupts property is deprecated and may be ignored by
the kernel.
intc accessed via the special ARC AUX register interface, hence "reg" property
is not specified.

2
Documentation/devicetree/bindings/net/mediatek-net.txt
View File

@ -7,7 +7,7 @@ have dual GMAC each represented by a child node..
* Ethernet controller node
Required properties:
- compatible: Should be "mediatek,mt7623-eth"
- compatible: Should be "mediatek,mt2701-eth"
- reg: Address and length of the register set for the device
- interrupts: Should contain the three frame engines interrupts in numeric
order. These are fe_int0, fe_int1 and fe_int2.

5
Documentation/devicetree/bindings/net/phy.txt
View File

@ -19,8 +19,9 @@ Optional Properties:
specifications. If neither of these are specified, the default is to
assume clause 22.
If the phy's identifier is known then the list may contain an entry
of the form: "ethernet-phy-idAAAA.BBBB" where
If the PHY reports an incorrect ID (or none at all) then the
"compatible" list may contain an entry with the correct PHY ID in the
form: "ethernet-phy-idAAAA.BBBB" where
AAAA - The value of the 16 bit Phy Identifier 1 register as
4 hex digits. This is the chip vendor OUI bits 3:18
BBBB - The value of the 16 bit Phy Identifier 2 register as

5
Documentation/media/uapi/cec/cec-func-close.rst
View File

@ -33,11 +33,6 @@ Arguments
Description
===========
.. note::
This documents the proposed CEC API. This API is not yet finalized
and is currently only available as a staging kernel module.
Closes the cec device. Resources associated with the file descriptor are
freed. The device configuration remain unchanged.

5
Documentation/media/uapi/cec/cec-func-ioctl.rst
View File

@ -39,11 +39,6 @@ Arguments
Description
===========
.. note::
This documents the proposed CEC API. This API is not yet finalized
and is currently only available as a staging kernel module.
The :c:func:`ioctl()` function manipulates cec device parameters. The
argument ``fd`` must be an open file descriptor.

5
Documentation/media/uapi/cec/cec-func-open.rst
View File

@ -46,11 +46,6 @@ Arguments
Description
===========
.. note::
This documents the proposed CEC API. This API is not yet finalized
and is currently only available as a staging kernel module.
To open a cec device applications call :c:func:`open()` with the
desired device name. The function has no side effects; the device
configuration remain unchanged.

5
Documentation/media/uapi/cec/cec-func-poll.rst
View File

@ -39,11 +39,6 @@ Arguments
Description
===========
.. note::
This documents the proposed CEC API. This API is not yet finalized
and is currently only available as a staging kernel module.
With the :c:func:`poll()` function applications can wait for CEC
events.

17
Documentation/media/uapi/cec/cec-intro.rst
View File

@ -3,11 +3,6 @@
Introduction
============
.. note::
This documents the proposed CEC API. This API is not yet finalized
and is currently only available as a staging kernel module.
HDMI connectors provide a single pin for use by the Consumer Electronics
Control protocol. This protocol allows different devices connected by an
HDMI cable to communicate. The protocol for CEC version 1.4 is defined
@ -31,3 +26,15 @@ control just the CEC pin.
Drivers that support CEC will create a CEC device node (/dev/cecX) to
give userspace access to the CEC adapter. The
:ref:`CEC_ADAP_G_CAPS` ioctl will tell userspace what it is allowed to do.
In order to check the support and test it, it is suggested to download
the `v4l-utils <https://git.linuxtv.org/v4l-utils.git/>`_ package. It
provides three tools to handle CEC:
- cec-ctl: the Swiss army knife of CEC. Allows you to configure, transmit
and monitor CEC messages.
- cec-compliance: does a CEC compliance test of a remote CEC device to
determine how compliant the CEC implementation is.
- cec-follower: emulates a CEC follower.

5
Documentation/media/uapi/cec/cec-ioc-adap-g-caps.rst
View File

@ -29,11 +29,6 @@ Arguments
Description
===========
.. note::
This documents the proposed CEC API. This API is not yet finalized
and is currently only available as a staging kernel module.
All cec devices must support :ref:`ioctl CEC_ADAP_G_CAPS <CEC_ADAP_G_CAPS>`. To query
device information, applications call the ioctl with a pointer to a
struct :c:type:`cec_caps`. The driver fills the structure and

5
Documentation/media/uapi/cec/cec-ioc-adap-g-log-addrs.rst
View File

@ -35,11 +35,6 @@ Arguments
Description
===========
.. note::
This documents the proposed CEC API. This API is not yet finalized
and is currently only available as a staging kernel module.
To query the current CEC logical addresses, applications call
:ref:`ioctl CEC_ADAP_G_LOG_ADDRS <CEC_ADAP_G_LOG_ADDRS>` with a pointer to a
struct :c:type:`cec_log_addrs` where the driver stores the logical addresses.

5
Documentation/media/uapi/cec/cec-ioc-adap-g-phys-addr.rst
View File

@ -35,11 +35,6 @@ Arguments
Description
===========
.. note::
This documents the proposed CEC API. This API is not yet finalized
and is currently only available as a staging kernel module.
To query the current physical address applications call
:ref:`ioctl CEC_ADAP_G_PHYS_ADDR <CEC_ADAP_G_PHYS_ADDR>` with a pointer to a __u16 where the
driver stores the physical address.

5
Documentation/media/uapi/cec/cec-ioc-dqevent.rst
View File

@ -30,11 +30,6 @@ Arguments
Description
===========
.. note::
This documents the proposed CEC API. This API is not yet finalized
and is currently only available as a staging kernel module.
CEC devices can send asynchronous events. These can be retrieved by
calling :c:func:`CEC_DQEVENT`. If the file descriptor is in
non-blocking mode and no event is pending, then it will return -1 and

5
Documentation/media/uapi/cec/cec-ioc-g-mode.rst
View File

@ -31,11 +31,6 @@ Arguments
Description
===========
.. note::
This documents the proposed CEC API. This API is not yet finalized
and is currently only available as a staging kernel module.
By default any filehandle can use :ref:`CEC_TRANSMIT`, but in order to prevent
applications from stepping on each others toes it must be possible to
obtain exclusive access to the CEC adapter. This ioctl sets the

5
Documentation/media/uapi/cec/cec-ioc-receive.rst
View File

@ -34,11 +34,6 @@ Arguments
Description
===========
.. note::
This documents the proposed CEC API. This API is not yet finalized
and is currently only available as a staging kernel module.
To receive a CEC message the application has to fill in the
``timeout`` field of struct :c:type:`cec_msg` and pass it to
:ref:`ioctl CEC_RECEIVE <CEC_RECEIVE>`.

4
Documentation/power/states.txt
View File

@ -35,9 +35,7 @@ only one way to cause the system to go into the Suspend-To-RAM state (write
The default suspend mode (ie. the one to be used without writing anything into
/sys/power/mem_sleep) is either "deep" (if Suspend-To-RAM is supported) or
"s2idle", but it can be overridden by the value of the "mem_sleep_default"
parameter in the kernel command line. On some ACPI-based systems, depending on
the information in the FADT, the default may be "s2idle" even if Suspend-To-RAM
is supported.
parameter in the kernel command line.
The properties of all of the sleep states are described below.

43
MAINTAINERS
View File

@ -1091,7 +1091,7 @@ F: arch/arm/boot/dts/aspeed-*
F: drivers/*/*aspeed*
ARM/ATMEL AT91RM9200, AT91SAM9 AND SAMA5 SOC SUPPORT
M: Nicolas Ferre <nicolas.ferre@atmel.com>
M: Nicolas Ferre <nicolas.ferre@microchip.com>
M: Alexandre Belloni <alexandre.belloni@free-electrons.com>
M: Jean-Christophe Plagniol-Villard <plagnioj@jcrosoft.com>
L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
@ -1773,7 +1773,7 @@ F: drivers/soc/renesas/
F: include/linux/soc/renesas/
ARM/SOCFPGA ARCHITECTURE
M: Dinh Nguyen <dinguyen@opensource.altera.com>
M: Dinh Nguyen <dinguyen@kernel.org>
S: Maintained
F: arch/arm/mach-socfpga/
F: arch/arm/boot/dts/socfpga*
@ -1783,7 +1783,7 @@ W: http://www.rocketboards.org
T: git git://git.kernel.org/pub/scm/linux/kernel/git/dinguyen/linux.git
ARM/SOCFPGA CLOCK FRAMEWORK SUPPORT
M: Dinh Nguyen <dinguyen@opensource.altera.com>
M: Dinh Nguyen <dinguyen@kernel.org>
S: Maintained
F: drivers/clk/socfpga/
@ -2175,56 +2175,56 @@ F: include/linux/atm*
F: include/uapi/linux/atm*
ATMEL AT91 / AT32 MCI DRIVER
M: Ludovic Desroches <ludovic.desroches@atmel.com>
M: Ludovic Desroches <ludovic.desroches@microchip.com>
S: Maintained
F: drivers/mmc/host/atmel-mci.c
ATMEL AT91 SAMA5D2-Compatible Shutdown Controller
M: Nicolas Ferre <nicolas.ferre@atmel.com>
M: Nicolas Ferre <nicolas.ferre@microchip.com>
S: Supported
F: drivers/power/reset/at91-sama5d2_shdwc.c
ATMEL SAMA5D2 ADC DRIVER
M: Ludovic Desroches <ludovic.desroches@atmel.com>
M: Ludovic Desroches <ludovic.desroches@microchip.com>
L: linux-iio@vger.kernel.org
S: Supported
F: drivers/iio/adc/at91-sama5d2_adc.c
ATMEL Audio ALSA driver
M: Nicolas Ferre <nicolas.ferre@atmel.com>
M: Nicolas Ferre <nicolas.ferre@microchip.com>
L: alsa-devel@alsa-project.org (moderated for non-subscribers)
S: Supported
F: sound/soc/atmel
ATMEL XDMA DRIVER
M: Ludovic Desroches <ludovic.desroches@atmel.com>
M: Ludovic Desroches <ludovic.desroches@microchip.com>
L: linux-arm-kernel@lists.infradead.org
L: dmaengine@vger.kernel.org
S: Supported
F: drivers/dma/at_xdmac.c
ATMEL I2C DRIVER
M: Ludovic Desroches <ludovic.desroches@atmel.com>
M: Ludovic Desroches <ludovic.desroches@microchip.com>
L: linux-i2c@vger.kernel.org
S: Supported
F: drivers/i2c/busses/i2c-at91.c
ATMEL ISI DRIVER
M: Ludovic Desroches <ludovic.desroches@atmel.com>
M: Ludovic Desroches <ludovic.desroches@microchip.com>
L: linux-media@vger.kernel.org
S: Supported
F: drivers/media/platform/soc_camera/atmel-isi.c
F: include/media/atmel-isi.h
ATMEL LCDFB DRIVER
M: Nicolas Ferre <nicolas.ferre@atmel.com>
M: Nicolas Ferre <nicolas.ferre@microchip.com>
L: linux-fbdev@vger.kernel.org
S: Maintained
F: drivers/video/fbdev/atmel_lcdfb.c
F: include/video/atmel_lcdc.h
ATMEL MACB ETHERNET DRIVER
M: Nicolas Ferre <nicolas.ferre@atmel.com>
M: Nicolas Ferre <nicolas.ferre@microchip.com>
S: Supported
F: drivers/net/ethernet/cadence/
@ -2236,32 +2236,32 @@ S: Supported
F: drivers/mtd/nand/atmel_nand*
ATMEL SDMMC DRIVER
M: Ludovic Desroches <ludovic.desroches@atmel.com>
M: Ludovic Desroches <ludovic.desroches@microchip.com>
L: linux-mmc@vger.kernel.org
S: Supported
F: drivers/mmc/host/sdhci-of-at91.c
ATMEL SPI DRIVER
M: Nicolas Ferre <nicolas.ferre@atmel.com>
M: Nicolas Ferre <nicolas.ferre@microchip.com>
S: Supported
F: drivers/spi/spi-atmel.*
ATMEL SSC DRIVER
M: Nicolas Ferre <nicolas.ferre@atmel.com>
M: Nicolas Ferre <nicolas.ferre@microchip.com>
L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
S: Supported
F: drivers/misc/atmel-ssc.c
F: include/linux/atmel-ssc.h
ATMEL Timer Counter (TC) AND CLOCKSOURCE DRIVERS
M: Nicolas Ferre <nicolas.ferre@atmel.com>
M: Nicolas Ferre <nicolas.ferre@microchip.com>
L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
S: Supported
F: drivers/misc/atmel_tclib.c
F: drivers/clocksource/tcb_clksrc.c
ATMEL USBA UDC DRIVER
M: Nicolas Ferre <nicolas.ferre@atmel.com>
M: Nicolas Ferre <nicolas.ferre@microchip.com>
L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
S: Supported
F: drivers/usb/gadget/udc/atmel_usba_udc.*
@ -3567,7 +3567,7 @@ F: drivers/infiniband/hw/cxgb3/
F: include/uapi/rdma/cxgb3-abi.h
CXGB4 ETHERNET DRIVER (CXGB4)
M: Hariprasad S <hariprasad@chelsio.com>
M: Ganesh Goudar <ganeshgr@chelsio.com>
L: netdev@vger.kernel.org
W: http://www.chelsio.com
S: Supported
@ -4154,7 +4154,7 @@ F: Documentation/gpu/i915.rst
INTEL GVT-g DRIVERS (Intel GPU Virtualization)
M: Zhenyu Wang <zhenyuw@linux.intel.com>
M: Zhi Wang <zhi.a.wang@intel.com>
L: igvt-g-dev@lists.01.org
L: intel-gvt-dev@lists.freedesktop.org
L: intel-gfx@lists.freedesktop.org
W: https://01.org/igvt-g
T: git https://github.com/01org/gvt-linux.git
@ -9743,7 +9743,7 @@ S: Maintained
F: drivers/pinctrl/pinctrl-at91.*
PIN CONTROLLER - ATMEL AT91 PIO4
M: Ludovic Desroches <ludovic.desroches@atmel.com>
M: Ludovic Desroches <ludovic.desroches@microchip.com>
L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
L: linux-gpio@vger.kernel.org
S: Supported
@ -10202,7 +10202,6 @@ F: drivers/media/tuners/qt1010*
QUALCOMM ATHEROS ATH9K WIRELESS DRIVER
M: QCA ath9k Development <ath9k-devel@qca.qualcomm.com>
L: linux-wireless@vger.kernel.org
L: ath9k-devel@lists.ath9k.org
W: http://wireless.kernel.org/en/users/Drivers/ath9k
S: Supported
F: drivers/net/wireless/ath/ath9k/
@ -13073,7 +13072,7 @@ F: drivers/input/serio/userio.c
F: include/uapi/linux/userio.h
VIRTIO CONSOLE DRIVER
M: Amit Shah <amit.shah@redhat.com>
M: Amit Shah <amit@kernel.org>
L: virtualization@lists.linux-foundation.org
S: Maintained
F: drivers/char/virtio_console.c

6
Makefile
View File

@ -1,8 +1,8 @@
VERSION = 4
PATCHLEVEL = 10
SUBLEVEL = 0
EXTRAVERSION = -rc5
NAME = Anniversary Edition
EXTRAVERSION = -rc8
NAME = Fearless Coyote
# *DOCUMENTATION*
# To see a list of typical targets execute "make help"
@ -797,7 +797,7 @@ KBUILD_CFLAGS += $(call cc-option,-Werror=incompatible-pointer-types)
KBUILD_ARFLAGS := $(call ar-option,D)
# check for 'asm goto'
ifeq ($(shell $(CONFIG_SHELL) $(srctree)/scripts/gcc-goto.sh $(CC)), y)
ifeq ($(shell $(CONFIG_SHELL) $(srctree)/scripts/gcc-goto.sh $(CC) $(KBUILD_CFLAGS)), y)
KBUILD_CFLAGS += -DCC_HAVE_ASM_GOTO
KBUILD_AFLAGS += -DCC_HAVE_ASM_GOTO
endif

4
arch/arc/include/asm/delay.h
View File

@ -26,7 +26,9 @@ static inline void __delay(unsigned long loops)
" lp 1f \n"
" nop \n"
"1: \n"
: : "r"(loops));
:
: "r"(loops)
: "lp_count");
}
extern void __bad_udelay(void);

14
arch/arc/kernel/head.S
View File

@ -71,14 +71,14 @@ ENTRY(stext)
GET_CPU_ID r5
cmp r5, 0
mov.nz r0, r5
#ifdef CONFIG_ARC_SMP_HALT_ON_RESET
; Non-Master can proceed as system would be booted sufficiently
jnz first_lines_of_secondary
#else
bz .Lmaster_proceed
; Non-Masters wait for Master to boot enough and bring them up
jnz arc_platform_smp_wait_to_boot
#endif
; Master falls thru
; when they resume, tail-call to entry point
mov blink, @first_lines_of_secondary
j arc_platform_smp_wait_to_boot
.Lmaster_proceed:
#endif
; Clear BSS before updating any globals

55
arch/arc/kernel/mcip.c
View File

@ -93,11 +93,10 @@ static void mcip_probe_n_setup(void)
READ_BCR(ARC_REG_MCIP_BCR, mp);
sprintf(smp_cpuinfo_buf,
"Extn [SMP]\t: ARConnect (v%d): %d cores with %s%s%s%s%s\n",
"Extn [SMP]\t: ARConnect (v%d): %d cores with %s%s%s%s\n",
mp.ver, mp.num_cores,
IS_AVAIL1(mp.ipi, "IPI "),
IS_AVAIL1(mp.idu, "IDU "),
IS_AVAIL1(mp.llm, "LLM "),
IS_AVAIL1(mp.dbg, "DEBUG "),
IS_AVAIL1(mp.gfrc, "GFRC"));
@ -175,7 +174,6 @@ static void idu_irq_unmask(struct irq_data *data)
raw_spin_unlock_irqrestore(&mcip_lock, flags);
}
#ifdef CONFIG_SMP
static int
idu_irq_set_affinity(struct irq_data *data, const struct cpumask *cpumask,
bool force)
@ -205,12 +203,27 @@ idu_irq_set_affinity(struct irq_data *data, const struct cpumask *cpumask,
return IRQ_SET_MASK_OK;
}
#endif
static void idu_irq_enable(struct irq_data *data)
{
/*
* By default send all common interrupts to all available online CPUs.
* The affinity of common interrupts in IDU must be set manually since
* in some cases the kernel will not call irq_set_affinity() by itself:
* 1. When the kernel is not configured with support of SMP.
* 2. When the kernel is configured with support of SMP but upper
* interrupt controllers does not support setting of the affinity
* and cannot propagate it to IDU.
*/
idu_irq_set_affinity(data, cpu_online_mask, false);
idu_irq_unmask(data);
}
static struct irq_chip idu_irq_chip = {
.name = "MCIP IDU Intc",
.irq_mask = idu_irq_mask,
.irq_unmask = idu_irq_unmask,
.irq_enable = idu_irq_enable,
#ifdef CONFIG_SMP
.irq_set_affinity = idu_irq_set_affinity,
#endif
@ -243,36 +256,14 @@ static int idu_irq_xlate(struct irq_domain *d, struct device_node *n,
const u32 *intspec, unsigned int intsize,
irq_hw_number_t *out_hwirq, unsigned int *out_type)
{
irq_hw_number_t hwirq = *out_hwirq = intspec[0];
int distri = intspec[1];
unsigned long flags;
/*
* Ignore value of interrupt distribution mode for common interrupts in
* IDU which resides in intspec[1] since setting an affinity using value
* from Device Tree is deprecated in ARC.
*/
*out_hwirq = intspec[0];
*out_type = IRQ_TYPE_NONE;
/* XXX: validate distribution scheme again online cpu mask */
if (distri == 0) {
/* 0 - Round Robin to all cpus, otherwise 1 bit per core */
raw_spin_lock_irqsave(&mcip_lock, flags);
idu_set_dest(hwirq, BIT(num_online_cpus()) - 1);
idu_set_mode(hwirq, IDU_M_TRIG_LEVEL, IDU_M_DISTRI_RR);
raw_spin_unlock_irqrestore(&mcip_lock, flags);
} else {
/*
* DEST based distribution for Level Triggered intr can only
* have 1 CPU, so generalize it to always contain 1 cpu
*/
int cpu = ffs(distri);
if (cpu != fls(distri))
pr_warn("IDU irq %lx distri mode set to cpu %x\n",
hwirq, cpu);
raw_spin_lock_irqsave(&mcip_lock, flags);
idu_set_dest(hwirq, cpu);
idu_set_mode(hwirq, IDU_M_TRIG_LEVEL, IDU_M_DISTRI_DEST);
raw_spin_unlock_irqrestore(&mcip_lock, flags);
}
return 0;
}

25
arch/arc/kernel/smp.c
View File

@ -90,22 +90,37 @@ void __init smp_cpus_done(unsigned int max_cpus)
*/
static volatile int wake_flag;
#ifdef CONFIG_ISA_ARCOMPACT
#define __boot_read(f) f
#define __boot_write(f, v) f = v
#else
#define __boot_read(f) arc_read_uncached_32(&f)
#define __boot_write(f, v) arc_write_uncached_32(&f, v)
#endif
static void arc_default_smp_cpu_kick(int cpu, unsigned long pc)
{
BUG_ON(cpu == 0);
wake_flag = cpu;
__boot_write(wake_flag, cpu);
}
void arc_platform_smp_wait_to_boot(int cpu)
{
while (wake_flag != cpu)
/* for halt-on-reset, we've waited already */
if (IS_ENABLED(CONFIG_ARC_SMP_HALT_ON_RESET))
return;
while (__boot_read(wake_flag) != cpu)
;
wake_flag = 0;
__asm__ __volatile__("j @first_lines_of_secondary \n");
__boot_write(wake_flag, 0);
}
const char *arc_platform_smp_cpuinfo(void)
{
return plat_smp_ops.info ? : "";

3
arch/arc/kernel/unaligned.c
View File

@ -241,8 +241,9 @@ int misaligned_fixup(unsigned long address, struct pt_regs *regs,
if (state.fault)
goto fault;
/* clear any remanants of delay slot */
if (delay_mode(regs)) {
regs->ret = regs->bta;
regs->ret = regs->bta & ~1U;
regs->status32 &= ~STATUS_DE_MASK;
} else {
regs->ret += state.instr_len;

2
arch/arm/boot/dts/Makefile
View File

@ -617,7 +617,7 @@ dtb-$(CONFIG_ARCH_ORION5X) += \
orion5x-lacie-ethernet-disk-mini-v2.dtb \
orion5x-linkstation-lsgl.dtb \
orion5x-linkstation-lswtgl.dtb \
orion5x-lschl.dtb \
orion5x-linkstation-lschl.dtb \
orion5x-lswsgl.dtb \
orion5x-maxtor-shared-storage-2.dtb \
orion5x-netgear-wnr854t.dtb \

8
arch/arm/boot/dts/imx1.dtsi
View File

@ -18,6 +18,14 @@
/ {
#address-cells = <1>;
#size-cells = <1>;
/*
* The decompressor and also some bootloaders rely on a
* pre-existing /chosen node to be available to insert the
* command line and merge other ATAGS info.
* Also for U-Boot there must be a pre-existing /memory node.
*/
chosen {};
memory { device_type = "memory"; reg = <0 0>; };
aliases {
gpio0 = &gpio1;

8
arch/arm/boot/dts/imx23.dtsi
View File

@ -16,6 +16,14 @@
#size-cells = <1>;
interrupt-parent = <&icoll>;
/*
* The decompressor and also some bootloaders rely on a
* pre-existing /chosen node to be available to insert the
* command line and merge other ATAGS info.
* Also for U-Boot there must be a pre-existing /memory node.
*/
chosen {};
memory { device_type = "memory"; reg = <0 0>; };
aliases {
gpio0 = &gpio0;

8
arch/arm/boot/dts/imx25.dtsi
View File

@ -14,6 +14,14 @@
/ {
#address-cells = <1>;
#size-cells = <1>;
/*
* The decompressor and also some bootloaders rely on a
* pre-existing /chosen node to be available to insert the
* command line and merge other ATAGS info.
* Also for U-Boot there must be a pre-existing /memory node.
*/
chosen {};
memory { device_type = "memory"; reg = <0 0>; };
aliases {
ethernet0 = &fec;

8
arch/arm/boot/dts/imx27.dtsi
View File

@ -19,6 +19,14 @@
/ {
#address-cells = <1>;
#size-cells = <1>;
/*
* The decompressor and also some bootloaders rely on a
* pre-existing /chosen node to be available to insert the
* command line and merge other ATAGS info.
* Also for U-Boot there must be a pre-existing /memory node.
*/
chosen {};
memory { device_type = "memory"; reg = <0 0>; };
aliases {
ethernet0 = &fec;

8
arch/arm/boot/dts/imx28.dtsi
View File

@ -17,6 +17,14 @@
#size-cells = <1>;
interrupt-parent = <&icoll>;
/*
* The decompressor and also some bootloaders rely on a
* pre-existing /chosen node to be available to insert the
* command line and merge other ATAGS info.
* Also for U-Boot there must be a pre-existing /memory node.
*/
chosen {};
memory { device_type = "memory"; reg = <0 0>; };
aliases {
ethernet0 = &mac0;

8
arch/arm/boot/dts/imx31.dtsi
View File

@ -12,6 +12,14 @@
/ {
#address-cells = <1>;
#size-cells = <1>;
/*
* The decompressor and also some bootloaders rely on a
* pre-existing /chosen node to be available to insert the
* command line and merge other ATAGS info.
* Also for U-Boot there must be a pre-existing /memory node.
*/
chosen {};
memory { device_type = "memory"; reg = <0 0>; };
aliases {
serial0 = &uart1;

8
arch/arm/boot/dts/imx35.dtsi
View File

@ -13,6 +13,14 @@
/ {
#address-cells = <1>;
#size-cells = <1>;
/*
* The decompressor and also some bootloaders rely on a
* pre-existing /chosen node to be available to insert the
* command line and merge other ATAGS info.
* Also for U-Boot there must be a pre-existing /memory node.
*/
chosen {};
memory { device_type = "memory"; reg = <0 0>; };
aliases {
ethernet0 = &fec;

8
arch/arm/boot/dts/imx50.dtsi
View File

@ -17,6 +17,14 @@
/ {
#address-cells = <1>;
#size-cells = <1>;
/*
* The decompressor and also some bootloaders rely on a
* pre-existing /chosen node to be available to insert the
* command line and merge other ATAGS info.
* Also for U-Boot there must be a pre-existing /memory node.
*/
chosen {};
memory { device_type = "memory"; reg = <0 0>; };
aliases {
ethernet0 = &fec;

8
arch/arm/boot/dts/imx51.dtsi
View File

@ -19,6 +19,14 @@
/ {
#address-cells = <1>;
#size-cells = <1>;
/*
* The decompressor and also some bootloaders rely on a
* pre-existing /chosen node to be available to insert the
* command line and merge other ATAGS info.
* Also for U-Boot there must be a pre-existing /memory node.
*/
chosen {};
memory { device_type = "memory"; reg = <0 0>; };
aliases {
ethernet0 = &fec;

8
arch/arm/boot/dts/imx53.dtsi
View File

@ -19,6 +19,14 @@
/ {
#address-cells = <1>;
#size-cells = <1>;
/*
* The decompressor and also some bootloaders rely on a
* pre-existing /chosen node to be available to insert the
* command line and merge other ATAGS info.
* Also for U-Boot there must be a pre-existing /memory node.
*/
chosen {};
memory { device_type = "memory"; reg = <0 0>; };
aliases {
ethernet0 = &fec;

2
arch/arm/boot/dts/imx6dl.dtsi
View File

@ -137,7 +137,7 @@
&gpio4 {
gpio-ranges = <&iomuxc 5 136 1>, <&iomuxc 6 145 1>, <&iomuxc 7 150 1>,
<&iomuxc 8 146 1>, <&iomuxc 9 151 1>, <&iomuxc 10 147 1>,
<&iomuxc 11 151 1>, <&iomuxc 12 148 1>, <&iomuxc 13 153 1>,
<&iomuxc 11 152 1>, <&iomuxc 12 148 1>, <&iomuxc 13 153 1>,
<&iomuxc 14 149 1>, <&iomuxc 15 154 1>, <&iomuxc 16 39 7>,
<&iomuxc 23 56 1>, <&iomuxc 24 61 7>, <&iomuxc 31 46 1>;
};

8
arch/arm/boot/dts/imx6qdl.dtsi
View File

@ -16,6 +16,14 @@
/ {
#address-cells = <1>;
#size-cells = <1>;
/*
* The decompressor and also some bootloaders rely on a
* pre-existing /chosen node to be available to insert the
* command line and merge other ATAGS info.
* Also for U-Boot there must be a pre-existing /memory node.
*/
chosen {};
memory { device_type = "memory"; reg = <0 0>; };
aliases {
ethernet0 = &fec;

8
arch/arm/boot/dts/imx6sl.dtsi
View File

@ -14,6 +14,14 @@
/ {
#address-cells = <1>;
#size-cells = <1>;
/*
* The decompressor and also some bootloaders rely on a
* pre-existing /chosen node to be available to insert the
* command line and merge other ATAGS info.
* Also for U-Boot there must be a pre-existing /memory node.
*/
chosen {};
memory { device_type = "memory"; reg = <0 0>; };
aliases {
ethernet0 = &fec;

8
arch/arm/boot/dts/imx6sx.dtsi
View File

@ -15,6 +15,14 @@
/ {
#address-cells = <1>;
#size-cells = <1>;
/*
* The decompressor and also some bootloaders rely on a
* pre-existing /chosen node to be available to insert the
* command line and merge other ATAGS info.
* Also for U-Boot there must be a pre-existing /memory node.
*/
chosen {};
memory { device_type = "memory"; reg = <0 0>; };
aliases {
can0 = &flexcan1;

8
arch/arm/boot/dts/imx6ul.dtsi
View File

@ -15,6 +15,14 @@
/ {
#address-cells = <1>;
#size-cells = <1>;
/*
* The decompressor and also some bootloaders rely on a
* pre-existing /chosen node to be available to insert the
* command line and merge other ATAGS info.
* Also for U-Boot there must be a pre-existing /memory node.
*/
chosen {};
memory { device_type = "memory"; reg = <0 0>; };
aliases {
ethernet0 = &fec1;

8
arch/arm/boot/dts/imx7s.dtsi
View File

@ -50,6 +50,14 @@
/ {
#address-cells = <1>;
#size-cells = <1>;
/*
* The decompressor and also some bootloaders rely on a
* pre-existing /chosen node to be available to insert the
* command line and merge other ATAGS info.
* Also for U-Boot there must be a pre-existing /memory node.
*/
chosen {};
memory { device_type = "memory"; reg = <0 0>; };
aliases {
gpio0 = &gpio1;

4
arch/arm/boot/dts/orion5x-lschl.dts → arch/arm/boot/dts/orion5x-linkstation-lschl.dts
View File

@ -2,7 +2,7 @@
* Device Tree file for Buffalo Linkstation LS-CHLv3
*
* Copyright (C) 2016 Ash Hughes <ashley.hughes@blueyonder.co.uk>
* Copyright (C) 2015, 2016
* Copyright (C) 2015-2017
* Roger Shimizu <rogershimizu@gmail.com>
*
* This file is dual-licensed: you can use it either under the terms
@ -52,7 +52,7 @@
#include <dt-bindings/gpio/gpio.h>
/ {
model = "Buffalo Linkstation Live v3 (LS-CHL)";
model = "Buffalo Linkstation LiveV3 (LS-CHL)";
compatible = "buffalo,lschl", "marvell,orion5x-88f5182", "marvell,orion5x";
memory { /* 128 MB */

1
arch/arm/boot/dts/stih407-family.dtsi
View File

@ -680,6 +680,7 @@
phy-names = "usb2-phy", "usb3-phy";
phys = <&usb2_picophy0>,
<&phy_port2 PHY_TYPE_USB3>;
snps,dis_u3_susphy_quirk;
};
};

4
arch/arm/configs/ezx_defconfig
View File

@ -64,8 +64,8 @@ CONFIG_NETFILTER=y
CONFIG_NETFILTER_NETLINK_QUEUE=m
CONFIG_NF_CONNTRACK=m
CONFIG_NF_CONNTRACK_EVENTS=y
CONFIG_NF_CT_PROTO_SCTP=m
CONFIG_NF_CT_PROTO_UDPLITE=m
CONFIG_NF_CT_PROTO_SCTP=y
CONFIG_NF_CT_PROTO_UDPLITE=y
CONFIG_NF_CONNTRACK_AMANDA=m
CONFIG_NF_CONNTRACK_FTP=m
CONFIG_NF_CONNTRACK_H323=m

4
arch/arm/configs/imote2_defconfig
View File

@ -56,8 +56,8 @@ CONFIG_NETFILTER=y
CONFIG_NETFILTER_NETLINK_QUEUE=m
CONFIG_NF_CONNTRACK=m
CONFIG_NF_CONNTRACK_EVENTS=y
CONFIG_NF_CT_PROTO_SCTP=m
CONFIG_NF_CT_PROTO_UDPLITE=m
CONFIG_NF_CT_PROTO_SCTP=y
CONFIG_NF_CT_PROTO_UDPLITE=y
CONFIG_NF_CONNTRACK_AMANDA=m
CONFIG_NF_CONNTRACK_FTP=m
CONFIG_NF_CONNTRACK_H323=m

2
arch/arm/kernel/ptrace.c
View File

@ -600,7 +600,7 @@ static int gpr_set(struct task_struct *target,
const void *kbuf, const void __user *ubuf)
{
int ret;
struct pt_regs newregs;
struct pt_regs newregs = *task_pt_regs(target);
ret = user_regset_copyin(&pos, &count, &kbuf, &ubuf,
&newregs,

2
arch/arm/mach-imx/mmdc.c
View File

@ -60,7 +60,6 @@
#define to_mmdc_pmu(p) container_of(p, struct mmdc_pmu, pmu)
static enum cpuhp_state cpuhp_mmdc_state;
static int ddr_type;
struct fsl_mmdc_devtype_data {
@ -82,6 +81,7 @@ static const struct of_device_id imx_mmdc_dt_ids[] = {
#ifdef CONFIG_PERF_EVENTS
static enum cpuhp_state cpuhp_mmdc_state;
static DEFINE_IDA(mmdc_ida);
PMU_EVENT_ATTR_STRING(total-cycles, mmdc_pmu_total_cycles, "event=0x00")

4
arch/arm/mm/fault.c
View File

@ -610,9 +610,9 @@ static int __init early_abort_handler(unsigned long addr, unsigned int fsr,
void __init early_abt_enable(void)
{
fsr_info[22].fn = early_abort_handler;
fsr_info[FSR_FS_AEA].fn = early_abort_handler;
local_abt_enable();
fsr_info[22].fn = do_bad;
fsr_info[FSR_FS_AEA].fn = do_bad;
}
#ifndef CONFIG_ARM_LPAE

4
arch/arm/mm/fault.h
View File

@ -11,11 +11,15 @@
#define FSR_FS5_0 (0x3f)
#ifdef CONFIG_ARM_LPAE
#define FSR_FS_AEA 17
static inline int fsr_fs(unsigned int fsr)
{
return fsr & FSR_FS5_0;
}
#else
#define FSR_FS_AEA 22
static inline int fsr_fs(unsigned int fsr)
{
return (fsr & FSR_FS3_0) | (fsr & FSR_FS4) >> 6;

18
arch/arm64/boot/dts/amlogic/meson-gx.dtsi
View File

@ -55,6 +55,24 @@
#address-cells = <2>;
#size-cells = <2>;
reserved-memory {
#address-cells = <2>;
#size-cells = <2>;
ranges;
/* 16 MiB reserved for Hardware ROM Firmware */
hwrom_reserved: hwrom@0 {
reg = <0x0 0x0 0x0 0x1000000>;
no-map;
};
/* 2 MiB reserved for ARM Trusted Firmware (BL31) */
secmon_reserved: secmon@10000000 {
reg = <0x0 0x10000000 0x0 0x200000>;
no-map;
};
};
cpus {
#address-cells = <0x2>;
#size-cells = <0x0>;

12
arch/arm64/boot/dts/amlogic/meson-gxbb-odroidc2.dts
View File

@ -151,6 +151,18 @@
status = "okay";
pinctrl-0 = <&eth_rgmii_pins>;
pinctrl-names = "default";
phy-handle = <&eth_phy0>;
mdio {
compatible = "snps,dwmac-mdio";
#address-cells = <1>;
#size-cells = <0>;
eth_phy0: ethernet-phy@0 {
reg = <0>;
eee-broken-1000t;
};
};
};
&ir {

90
arch/arm64/crypto/aes-modes.S
View File

@ -193,15 +193,16 @@ AES_ENTRY(aes_cbc_encrypt)
cbz w6, .Lcbcencloop
ld1 {v0.16b}, [x5] /* get iv */
enc_prepare w3, x2, x5
enc_prepare w3, x2, x6
.Lcbcencloop:
ld1 {v1.16b}, [x1], #16 /* get next pt block */
eor v0.16b, v0.16b, v1.16b /* ..and xor with iv */
encrypt_block v0, w3, x2, x5, w6
encrypt_block v0, w3, x2, x6, w7
st1 {v0.16b}, [x0], #16
subs w4, w4, #1
bne .Lcbcencloop
st1 {v0.16b}, [x5] /* return iv */
ret
AES_ENDPROC(aes_cbc_encrypt)
@ -211,7 +212,7 @@ AES_ENTRY(aes_cbc_decrypt)
cbz w6, .LcbcdecloopNx
ld1 {v7.16b}, [x5] /* get iv */
dec_prepare w3, x2, x5
dec_prepare w3, x2, x6
.LcbcdecloopNx:
#if INTERLEAVE >= 2
@ -248,7 +249,7 @@ AES_ENTRY(aes_cbc_decrypt)
.Lcbcdecloop:
ld1 {v1.16b}, [x1], #16 /* get next ct block */
mov v0.16b, v1.16b /* ...and copy to v0 */
decrypt_block v0, w3, x2, x5, w6
decrypt_block v0, w3, x2, x6, w7
eor v0.16b, v0.16b, v7.16b /* xor with iv => pt */
mov v7.16b, v1.16b /* ct is next iv */
st1 {v0.16b}, [x0], #16
@ -256,6 +257,7 @@ AES_ENTRY(aes_cbc_decrypt)
bne .Lcbcdecloop
.Lcbcdecout:
FRAME_POP
st1 {v7.16b}, [x5] /* return iv */
ret
AES_ENDPROC(aes_cbc_decrypt)
@ -267,24 +269,15 @@ AES_ENDPROC(aes_cbc_decrypt)
AES_ENTRY(aes_ctr_encrypt)
FRAME_PUSH
cbnz w6, .Lctrfirst /* 1st time around? */
umov x5, v4.d[1] /* keep swabbed ctr in reg */
rev x5, x5
#if INTERLEAVE >= 2
cmn w5, w4 /* 32 bit overflow? */
bcs .Lctrinc
add x5, x5, #1 /* increment BE ctr */
b .LctrincNx
#else
b .Lctrinc
#endif
.Lctrfirst:
cbz w6, .Lctrnotfirst /* 1st time around? */
enc_prepare w3, x2, x6
ld1 {v4.16b}, [x5]
umov x5, v4.d[1] /* keep swabbed ctr in reg */
rev x5, x5
.Lctrnotfirst:
umov x8, v4.d[1] /* keep swabbed ctr in reg */
rev x8, x8
#if INTERLEAVE >= 2
cmn w5, w4 /* 32 bit overflow? */
cmn w8, w4 /* 32 bit overflow? */
bcs .Lctrloop
.LctrloopNx:
subs w4, w4, #INTERLEAVE
@ -292,11 +285,11 @@ AES_ENTRY(aes_ctr_encrypt)
#if INTERLEAVE == 2
mov v0.8b, v4.8b
mov v1.8b, v4.8b
rev x7, x5
add x5, x5, #1
rev x7, x8
add x8, x8, #1
ins v0.d[1], x7
rev x7, x5
add x5, x5, #1
rev x7, x8
add x8, x8, #1
ins v1.d[1], x7
ld1 {v2.16b-v3.16b}, [x1], #32 /* get 2 input blocks */
do_encrypt_block2x
@ -305,7 +298,7 @@ AES_ENTRY(aes_ctr_encrypt)
st1 {v0.16b-v1.16b}, [x0], #32
#else
ldr q8, =0x30000000200000001 /* addends 1,2,3[,0] */
dup v7.4s, w5
dup v7.4s, w8
mov v0.16b, v4.16b
add v7.4s, v7.4s, v8.4s
mov v1.16b, v4.16b
@ -323,18 +316,12 @@ AES_ENTRY(aes_ctr_encrypt)
eor v2.16b, v7.16b, v2.16b
eor v3.16b, v5.16b, v3.16b
st1 {v0.16b-v3.16b}, [x0], #64
add x5, x5, #INTERLEAVE
add x8, x8, #INTERLEAVE
#endif
cbz w4, .LctroutNx
.LctrincNx:
rev x7, x5
rev x7, x8
ins v4.d[1], x7
cbz w4, .Lctrout
b .LctrloopNx
.LctroutNx:
sub x5, x5, #1
rev x7, x5
ins v4.d[1], x7
b .Lctrout
.Lctr1x:
adds w4, w4, #INTERLEAVE
beq .Lctrout
@ -342,30 +329,39 @@ AES_ENTRY(aes_ctr_encrypt)
.Lctrloop:
mov v0.16b, v4.16b
encrypt_block v0, w3, x2, x6, w7
adds x8, x8, #1 /* increment BE ctr */
rev x7, x8
ins v4.d[1], x7
bcs .Lctrcarry /* overflow? */
.Lctrcarrydone:
subs w4, w4, #1
bmi .Lctrhalfblock /* blocks < 0 means 1/2 block */
ld1 {v3.16b}, [x1], #16
eor v3.16b, v0.16b, v3.16b
st1 {v3.16b}, [x0], #16
beq .Lctrout
.Lctrinc:
adds x5, x5, #1 /* increment BE ctr */
rev x7, x5
ins v4.d[1], x7
bcc .Lctrloop /* no overflow? */
bne .Lctrloop
.Lctrout:
st1 {v4.16b}, [x5] /* return next CTR value */
FRAME_POP
ret
.Lctrhalfblock:
ld1 {v3.8b}, [x1]
eor v3.8b, v0.8b, v3.8b
st1 {v3.8b}, [x0]
FRAME_POP
ret
.Lctrcarry:
umov x7, v4.d[0] /* load upper word of ctr */
rev x7, x7 /* ... to handle the carry */
add x7, x7, #1
rev x7, x7
ins v4.d[0], x7
b .Lctrloop
.Lctrhalfblock:
ld1 {v3.8b}, [x1]
eor v3.8b, v0.8b, v3.8b
st1 {v3.8b}, [x0]
.Lctrout:
FRAME_POP
ret
b .Lctrcarrydone
AES_ENDPROC(aes_ctr_encrypt)
.ltorg

8
arch/arm64/kernel/topology.c
View File

@ -11,6 +11,7 @@
* for more details.
*/
#include <linux/acpi.h>
#include <linux/cpu.h>
#include <linux/cpumask.h>
#include <linux/init.h>
@ -209,7 +210,12 @@ static struct notifier_block init_cpu_capacity_notifier = {
static int __init register_cpufreq_notifier(void)
{
if (cap_parsing_failed)
/*
* on ACPI-based systems we need to use the default cpu capacity
* until we have the necessary code to parse the cpu capacity, so
* skip registering cpufreq notifier.
*/
if (!acpi_disabled || cap_parsing_failed)
return -EINVAL;
if (!alloc_cpumask_var(&cpus_to_visit, GFP_KERNEL)) {

8
arch/parisc/include/asm/bitops.h
View File

@ -6,7 +6,7 @@
#endif
#include <linux/compiler.h>
#include <asm/types.h> /* for BITS_PER_LONG/SHIFT_PER_LONG */
#include <asm/types.h>
#include <asm/byteorder.h>
#include <asm/barrier.h>
#include <linux/atomic.h>
@ -17,6 +17,12 @@
* to include/asm-i386/bitops.h or kerneldoc
*/
#if __BITS_PER_LONG == 64
#define SHIFT_PER_LONG 6
#else
#define SHIFT_PER_LONG 5
#endif
#define CHOP_SHIFTCOUNT(x) (((unsigned long) (x)) & (BITS_PER_LONG - 1))

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

@ -3,10 +3,8 @@
#if defined(__LP64__)
#define __BITS_PER_LONG 64
#define SHIFT_PER_LONG 6
#else
#define __BITS_PER_LONG 32
#define SHIFT_PER_LONG 5
#endif
#include <asm-generic/bitsperlong.h>

5
arch/parisc/include/uapi/asm/swab.h
View File

@ -1,6 +1,7 @@
#ifndef _PARISC_SWAB_H
#define _PARISC_SWAB_H
#include <asm/bitsperlong.h>
#include <linux/types.h>
#include <linux/compiler.h>
@ -38,7 +39,7 @@ static inline __attribute_const__ __u32 __arch_swab32(__u32 x)
}
#define __arch_swab32 __arch_swab32
#if BITS_PER_LONG > 32
#if __BITS_PER_LONG > 32
/*
** From "PA-RISC 2.0 Architecture", HP Professional Books.
** See Appendix I page 8 , "Endian Byte Swapping".
@ -61,6 +62,6 @@ static inline __attribute_const__ __u64 __arch_swab64(__u64 x)
return x;
}
#define __arch_swab64 __arch_swab64
#endif /* BITS_PER_LONG > 32 */
#endif /* __BITS_PER_LONG > 32 */
#endif /* _PARISC_SWAB_H */

2
arch/powerpc/Kconfig
View File

@ -164,7 +164,6 @@ config PPC
select ARCH_HAS_SCALED_CPUTIME if VIRT_CPU_ACCOUNTING_NATIVE
select HAVE_ARCH_HARDENED_USERCOPY
select HAVE_KERNEL_GZIP
select HAVE_CC_STACKPROTECTOR
config GENERIC_CSUM
def_bool CPU_LITTLE_ENDIAN
@ -484,6 +483,7 @@ config RELOCATABLE
bool "Build a relocatable kernel"
depends on (PPC64 && !COMPILE_TEST) || (FLATMEM && (44x || FSL_BOOKE))
select NONSTATIC_KERNEL
select MODULE_REL_CRCS if MODVERSIONS
help
This builds a kernel image that is capable of running at the
location the kernel is loaded at. For ppc32, there is no any

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

@ -23,7 +23,9 @@ static __always_inline bool cpu_has_feature(unsigned long feature)
{
int i;
#ifndef __clang__ /* clang can't cope with this */
BUILD_BUG_ON(!__builtin_constant_p(feature));
#endif
#ifdef CONFIG_JUMP_LABEL_FEATURE_CHECK_DEBUG
if (!static_key_initialized) {

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

@ -160,7 +160,9 @@ static __always_inline bool mmu_has_feature(unsigned long feature)
{
int i;
#ifndef __clang__ /* clang can't cope with this */
BUILD_BUG_ON(!__builtin_constant_p(feature));
#endif
#ifdef CONFIG_JUMP_LABEL_FEATURE_CHECK_DEBUG
if (!static_key_initialized) {

4
arch/powerpc/include/asm/module.h
View File

@ -90,9 +90,5 @@ static inline int module_finalize_ftrace(struct module *mod, const Elf_Shdr *sec
}
#endif
#if defined(CONFIG_MODVERSIONS) && defined(CONFIG_PPC64)
#define ARCH_RELOCATES_KCRCTAB
#define reloc_start PHYSICAL_START
#endif
#endif /* __KERNEL__ */
#endif /* _ASM_POWERPC_MODULE_H */

3
arch/powerpc/include/asm/reg.h
View File

@ -649,9 +649,10 @@
#define SRR1_ISI_N_OR_G 0x10000000 /* ISI: Access is no-exec or G */
#define SRR1_ISI_PROT 0x08000000 /* ISI: Other protection fault */
#define SRR1_WAKEMASK 0x00380000 /* reason for wakeup */
#define SRR1_WAKEMASK_P8 0x003c0000 /* reason for wakeup on POWER8 */
#define SRR1_WAKEMASK_P8 0x003c0000 /* reason for wakeup on POWER8 and 9 */
#define SRR1_WAKESYSERR 0x00300000 /* System error */
#define SRR1_WAKEEE 0x00200000 /* External interrupt */
#define SRR1_WAKEHVI 0x00240000 /* Hypervisor Virtualization Interrupt (P9) */
#define SRR1_WAKEMT 0x00280000 /* mtctrl */
#define SRR1_WAKEHMI 0x00280000 /* Hypervisor maintenance */
#define SRR1_WAKEDEC 0x00180000 /* Decrementer interrupt */

40
arch/powerpc/include/asm/stackprotector.h
View File

@ -1,40 +0,0 @@
/*
* GCC stack protector support.
*
* Stack protector works by putting predefined pattern at the start of
* the stack frame and verifying that it hasn't been overwritten when
* returning from the function. The pattern is called stack canary
* and gcc expects it to be defined by a global variable called
* "__stack_chk_guard" on PPC. This unfortunately means that on SMP
* we cannot have a different canary value per task.
*/
#ifndef _ASM_STACKPROTECTOR_H
#define _ASM_STACKPROTECTOR_H
#include <linux/random.h>
#include <linux/version.h>
#include <asm/reg.h>
extern unsigned long __stack_chk_guard;
/*
* Initialize the stackprotector canary value.
*
* NOTE: this must only be called from functions that never return,
* and it must always be inlined.
*/
static __always_inline void boot_init_stack_canary(void)
{
unsigned long canary;
/* Try to get a semi random initial value. */
get_random_bytes(&canary, sizeof(canary));
canary ^= mftb();
canary ^= LINUX_VERSION_CODE;
current->stack_canary = canary;
__stack_chk_guard = current->stack_canary;
}
#endif /* _ASM_STACKPROTECTOR_H */

1
arch/powerpc/include/asm/xics.h
View File

@ -44,6 +44,7 @@ static inline int icp_hv_init(void) { return -ENODEV; }
#ifdef CONFIG_PPC_POWERNV
extern int icp_opal_init(void);
extern void icp_opal_flush_interrupt(void);
#else
static inline int icp_opal_init(void) { return -ENODEV; }
#endif

4
arch/powerpc/kernel/Makefile
View File

@ -19,10 +19,6 @@ CFLAGS_init.o += $(DISABLE_LATENT_ENTROPY_PLUGIN)
CFLAGS_btext.o += $(DISABLE_LATENT_ENTROPY_PLUGIN)
CFLAGS_prom.o += $(DISABLE_LATENT_ENTROPY_PLUGIN)
# -fstack-protector triggers protection checks in this code,
# but it is being used too early to link to meaningful stack_chk logic.
CFLAGS_prom_init.o += $(call cc-option, -fno-stack-protector)
ifdef CONFIG_FUNCTION_TRACER
# Do not trace early boot code
CFLAGS_REMOVE_cputable.o = -mno-sched-epilog $(CC_FLAGS_FTRACE)

3
arch/powerpc/kernel/asm-offsets.c
View File

@ -91,9 +91,6 @@ int main(void)
DEFINE(TI_livepatch_sp, offsetof(struct thread_info, livepatch_sp));
#endif
#ifdef CONFIG_CC_STACKPROTECTOR
DEFINE(TSK_STACK_CANARY, offsetof(struct task_struct, stack_canary));
#endif
DEFINE(KSP, offsetof(struct thread_struct, ksp));
DEFINE(PT_REGS, offsetof(struct thread_struct, regs));
#ifdef CONFIG_BOOKE

2
arch/powerpc/kernel/eeh_driver.c
View File

@ -545,7 +545,7 @@ static void *eeh_pe_detach_dev(void *data, void *userdata)
static void *__eeh_clear_pe_frozen_state(void *data, void *flag)
{
struct eeh_pe *pe = (struct eeh_pe *)data;
bool *clear_sw_state = flag;
bool clear_sw_state = *(bool *)flag;
int i, rc = 1;
for (i = 0; rc && i < 3; i++)

6
arch/powerpc/kernel/entry_32.S
View File

@ -674,11 +674,7 @@ BEGIN_FTR_SECTION
mtspr SPRN_SPEFSCR,r0 /* restore SPEFSCR reg */
END_FTR_SECTION_IFSET(CPU_FTR_SPE)
#endif /* CONFIG_SPE */
#if defined(CONFIG_CC_STACKPROTECTOR) && !defined(CONFIG_SMP)
lwz r0,TSK_STACK_CANARY(r2)
lis r4,__stack_chk_guard@ha
stw r0,__stack_chk_guard@l(r4)
#endif
lwz r0,_CCR(r1)
mtcrf 0xFF,r0
/* r3-r12 are destroyed -- Cort */

8
arch/powerpc/kernel/module_64.c
View File

@ -286,14 +286,6 @@ static void dedotify_versions(struct modversion_info *vers,
for (end = (void *)vers + size; vers < end; vers++)
if (vers->name[0] == '.') {
memmove(vers->name, vers->name+1, strlen(vers->name));
#ifdef ARCH_RELOCATES_KCRCTAB
/* The TOC symbol has no CRC computed. To avoid CRC
* check failing, we must force it to the expected
* value (see CRC check in module.c).
*/
if (!strcmp(vers->name, "TOC."))
vers->crc = -(unsigned long)reloc_start;
#endif
}
}

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

@ -64,12 +64,6 @@
#include <linux/kprobes.h>
#include <linux/kdebug.h>
#ifdef CONFIG_CC_STACKPROTECTOR
#include <linux/stackprotector.h>
unsigned long __stack_chk_guard __read_mostly;
EXPORT_SYMBOL(__stack_chk_guard);
#endif
/* Transactional Memory debug */
#ifdef TM_DEBUG_SW
#define TM_DEBUG(x...) printk(KERN_INFO x)

3
arch/powerpc/kernel/prom_init.c
View File

@ -2834,6 +2834,9 @@ static void __init prom_find_boot_cpu(void)
cpu_pkg = call_prom("instance-to-package", 1, 1, prom_cpu);
if (!PHANDLE_VALID(cpu_pkg))
return;
prom_getprop(cpu_pkg, "reg", &rval, sizeof(rval));
prom.cpu = be32_to_cpu(rval);

21
arch/powerpc/mm/fault.c
View File

@ -253,8 +253,11 @@ int do_page_fault(struct pt_regs *regs, unsigned long address,
if (unlikely(debugger_fault_handler(regs)))
goto bail;
/* On a kernel SLB miss we can only check for a valid exception entry */
if (!user_mode(regs) && (address >= TASK_SIZE)) {
/*
* The kernel should never take an execute fault nor should it
* take a page fault to a kernel address.
*/
if (!user_mode(regs) && (is_exec || (address >= TASK_SIZE))) {
rc = SIGSEGV;
goto bail;
}
@ -390,20 +393,6 @@ good_area:
#endif /* CONFIG_8xx */
if (is_exec) {
/*
* An execution fault + no execute ?
*
* On CPUs that don't have CPU_FTR_COHERENT_ICACHE we
* deliberately create NX mappings, and use the fault to do the
* cache flush. This is usually handled in hash_page_do_lazy_icache()
* but we could end up here if that races with a concurrent PTE
* update. In that case we need to fall through here to the VMA
* check below.
*/
if (cpu_has_feature(CPU_FTR_COHERENT_ICACHE) &&
(regs->msr & SRR1_ISI_N_OR_G))
goto bad_area;
/*
* Allow execution from readable areas if the MMU does not
* provide separate controls over reading and executing.

4
arch/powerpc/mm/pgtable-radix.c
View File

@ -65,7 +65,7 @@ int radix__map_kernel_page(unsigned long ea, unsigned long pa,
if (!pmdp)
return -ENOMEM;
if (map_page_size == PMD_SIZE) {
ptep = (pte_t *)pudp;
ptep = pmdp_ptep(pmdp);
goto set_the_pte;
}
ptep = pte_alloc_kernel(pmdp, ea);
@ -90,7 +90,7 @@ int radix__map_kernel_page(unsigned long ea, unsigned long pa,
}
pmdp = pmd_offset(pudp, ea);
if (map_page_size == PMD_SIZE) {
ptep = (pte_t *)pudp;
ptep = pmdp_ptep(pmdp);
goto set_the_pte;
}
if (!pmd_present(*pmdp)) {

6
arch/powerpc/mm/tlb-radix.c
View File

@ -50,9 +50,7 @@ static inline void _tlbiel_pid(unsigned long pid, unsigned long ric)
for (set = 0; set < POWER9_TLB_SETS_RADIX ; set++) {
__tlbiel_pid(pid, set, ric);
}
if (cpu_has_feature(CPU_FTR_POWER9_DD1))
asm volatile(PPC_INVALIDATE_ERAT : : :"memory");
return;
asm volatile(PPC_INVALIDATE_ERAT "; isync" : : :"memory");
}
static inline void _tlbie_pid(unsigned long pid, unsigned long ric)
@ -85,8 +83,6 @@ static inline void _tlbiel_va(unsigned long va, unsigned long pid,
asm volatile(PPC_TLBIEL(%0, %4, %3, %2, %1)
: : "r"(rb), "i"(r), "i"(prs), "i"(ric), "r"(rs) : "memory");
asm volatile("ptesync": : :"memory");
if (cpu_has_feature(CPU_FTR_POWER9_DD1))
asm volatile(PPC_INVALIDATE_ERAT : : :"memory");
}
static inline void _tlbie_va(unsigned long va, unsigned long pid,

12
arch/powerpc/platforms/powernv/smp.c
View File

@ -155,8 +155,10 @@ static void pnv_smp_cpu_kill_self(void)
wmask = SRR1_WAKEMASK_P8;
idle_states = pnv_get_supported_cpuidle_states();
/* We don't want to take decrementer interrupts while we are offline,
* so clear LPCR:PECE1. We keep PECE2 enabled.
* so clear LPCR:PECE1. We keep PECE2 (and LPCR_PECE_HVEE on P9)
* enabled as to let IPIs in.
*/
mtspr(SPRN_LPCR, mfspr(SPRN_LPCR) & ~(u64)LPCR_PECE1);
@ -206,8 +208,12 @@ static void pnv_smp_cpu_kill_self(void)
* contains 0.
*/
if (((srr1 & wmask) == SRR1_WAKEEE) ||
((srr1 & wmask) == SRR1_WAKEHVI) ||
(local_paca->irq_happened & PACA_IRQ_EE)) {
icp_native_flush_interrupt();
if (cpu_has_feature(CPU_FTR_ARCH_300))
icp_opal_flush_interrupt();
else
icp_native_flush_interrupt();
} else if ((srr1 & wmask) == SRR1_WAKEHDBELL) {
unsigned long msg = PPC_DBELL_TYPE(PPC_DBELL_SERVER);
asm volatile(PPC_MSGCLR(%0) : : "r" (msg));
@ -221,6 +227,8 @@ static void pnv_smp_cpu_kill_self(void)
if (srr1 && !generic_check_cpu_restart(cpu))
DBG("CPU%d Unexpected exit while offline !\n", cpu);
}
/* Re-enable decrementer interrupts */
mtspr(SPRN_LPCR, mfspr(SPRN_LPCR) | LPCR_PECE1);
DBG("CPU%d coming online...\n", cpu);
}

35
arch/powerpc/sysdev/xics/icp-opal.c
View File

@ -120,18 +120,49 @@ static void icp_opal_cause_ipi(int cpu, unsigned long data)
{
int hw_cpu = get_hard_smp_processor_id(cpu);
kvmppc_set_host_ipi(cpu, 1);
opal_int_set_mfrr(hw_cpu, IPI_PRIORITY);
}
static irqreturn_t icp_opal_ipi_action(int irq, void *dev_id)
{
int hw_cpu = hard_smp_processor_id();
int cpu = smp_processor_id();
opal_int_set_mfrr(hw_cpu, 0xff);
kvmppc_set_host_ipi(cpu, 0);
opal_int_set_mfrr(get_hard_smp_processor_id(cpu), 0xff);
return smp_ipi_demux();
}
/*
* Called when an interrupt is received on an off-line CPU to
* clear the interrupt, so that the CPU can go back to nap mode.
*/
void icp_opal_flush_interrupt(void)
{
unsigned int xirr;
unsigned int vec;
do {
xirr = icp_opal_get_xirr();
vec = xirr & 0x00ffffff;
if (vec == XICS_IRQ_SPURIOUS)
break;
if (vec == XICS_IPI) {
/* Clear pending IPI */
int cpu = smp_processor_id();
kvmppc_set_host_ipi(cpu, 0);
opal_int_set_mfrr(get_hard_smp_processor_id(cpu), 0xff);
} else {
pr_err("XICS: hw interrupt 0x%x to offline cpu, "
"disabling\n", vec);
xics_mask_unknown_vec(vec);
}
/* EOI the interrupt */
} while (opal_int_eoi(xirr) > 0);
}
#endif /* CONFIG_SMP */
static const struct icp_ops icp_opal_ops = {

8
arch/s390/kernel/ptrace.c
View File

@ -963,6 +963,11 @@ static int s390_fpregs_set(struct task_struct *target,
if (target == current)
save_fpu_regs();
if (MACHINE_HAS_VX)
convert_vx_to_fp(fprs, target->thread.fpu.vxrs);
else
memcpy(&fprs, target->thread.fpu.fprs, sizeof(fprs));
/* If setting FPC, must validate it first. */
if (count > 0 && pos < offsetof(s390_fp_regs, fprs)) {
u32 ufpc[2] = { target->thread.fpu.fpc, 0 };
@ -1067,6 +1072,9 @@ static int s390_vxrs_low_set(struct task_struct *target,
if (target == current)
save_fpu_regs();
for (i = 0; i < __NUM_VXRS_LOW; i++)
vxrs[i] = *((__u64 *)(target->thread.fpu.vxrs + i) + 1);
rc = user_regset_copyin(&pos, &count, &kbuf, &ubuf, vxrs, 0, -1);
if (rc == 0)
for (i = 0; i < __NUM_VXRS_LOW; i++)

7
arch/s390/mm/pgtable.c
View File

@ -202,7 +202,7 @@ static inline pgste_t ptep_xchg_start(struct mm_struct *mm,
return pgste;
}
static inline void ptep_xchg_commit(struct mm_struct *mm,
static inline pte_t ptep_xchg_commit(struct mm_struct *mm,
unsigned long addr, pte_t *ptep,
pgste_t pgste, pte_t old, pte_t new)
{
@ -220,6 +220,7 @@ static inline void ptep_xchg_commit(struct mm_struct *mm,
} else {
*ptep = new;
}
return old;
}
pte_t ptep_xchg_direct(struct mm_struct *mm, unsigned long addr,
@ -231,7 +232,7 @@ pte_t ptep_xchg_direct(struct mm_struct *mm, unsigned long addr,
preempt_disable();
pgste = ptep_xchg_start(mm, addr, ptep);
old = ptep_flush_direct(mm, addr, ptep);
ptep_xchg_commit(mm, addr, ptep, pgste, old, new);
old = ptep_xchg_commit(mm, addr, ptep, pgste, old, new);
preempt_enable();
return old;
}
@ -246,7 +247,7 @@ pte_t ptep_xchg_lazy(struct mm_struct *mm, unsigned long addr,
preempt_disable();
pgste = ptep_xchg_start(mm, addr, ptep);
old = ptep_flush_lazy(mm, addr, ptep);
ptep_xchg_commit(mm, addr, ptep, pgste, old, new);
old = ptep_xchg_commit(mm, addr, ptep, pgste, old, new);
preempt_enable();
return old;
}

8
arch/sparc/include/asm/mmu_context_64.h
View File

@ -35,15 +35,15 @@ void __tsb_context_switch(unsigned long pgd_pa,
static inline void tsb_context_switch(struct mm_struct *mm)
{
__tsb_context_switch(__pa(mm->pgd),
&mm->context.tsb_block[0],
&mm->context.tsb_block[MM_TSB_BASE],
#if defined(CONFIG_HUGETLB_PAGE) || defined(CONFIG_TRANSPARENT_HUGEPAGE)
(mm->context.tsb_block[1].tsb ?
&mm->context.tsb_block[1] :
(mm->context.tsb_block[MM_TSB_HUGE].tsb ?
&mm->context.tsb_block[MM_TSB_HUGE] :
NULL)
#else
NULL
#endif
, __pa(&mm->context.tsb_descr[0]));
, __pa(&mm->context.tsb_descr[MM_TSB_BASE]));
}
void tsb_grow(struct mm_struct *mm,

2
arch/sparc/kernel/irq_64.c
View File

@ -1021,7 +1021,7 @@ static void __init alloc_one_queue(unsigned long *pa_ptr, unsigned long qmask)
unsigned long order = get_order(size);
unsigned long p;
p = __get_free_pages(GFP_KERNEL, order);
p = __get_free_pages(GFP_KERNEL | __GFP_ZERO, order);
if (!p) {
prom_printf("SUN4V: Error, cannot allocate queue.\n");
prom_halt();

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

@ -43,8 +43,8 @@ static const char poweroff_msg[32] __attribute__((aligned(32))) =
"Linux powering off";
static const char rebooting_msg[32] __attribute__((aligned(32))) =
"Linux rebooting";
static const char panicing_msg[32] __attribute__((aligned(32))) =
"Linux panicing";
static const char panicking_msg[32] __attribute__((aligned(32))) =
"Linux panicking";
static int sstate_reboot_call(struct notifier_block *np, unsigned long type, void *_unused)
{
@ -76,7 +76,7 @@ static struct notifier_block sstate_reboot_notifier = {
static int sstate_panic_event(struct notifier_block *n, unsigned long event, void *ptr)
{
do_set_sstate(HV_SOFT_STATE_TRANSITION, panicing_msg);
do_set_sstate(HV_SOFT_STATE_TRANSITION, panicking_msg);
return NOTIFY_DONE;
}

73
arch/sparc/kernel/traps_64.c
View File

@ -2051,6 +2051,73 @@ void sun4v_resum_overflow(struct pt_regs *regs)
atomic_inc(&sun4v_resum_oflow_cnt);
}
/* Given a set of registers, get the virtual addressi that was being accessed
* by the faulting instructions at tpc.
*/
static unsigned long sun4v_get_vaddr(struct pt_regs *regs)
{
unsigned int insn;
if (!copy_from_user(&insn, (void __user *)regs->tpc, 4)) {
return compute_effective_address(regs, insn,
(insn >> 25) & 0x1f);
}
return 0;
}
/* Attempt to handle non-resumable errors generated from userspace.
* Returns true if the signal was handled, false otherwise.
*/
bool sun4v_nonresum_error_user_handled(struct pt_regs *regs,
struct sun4v_error_entry *ent) {
unsigned int attrs = ent->err_attrs;
if (attrs & SUN4V_ERR_ATTRS_MEMORY) {
unsigned long addr = ent->err_raddr;
siginfo_t info;
if (addr == ~(u64)0) {
/* This seems highly unlikely to ever occur */
pr_emerg("SUN4V NON-RECOVERABLE ERROR: Memory error detected in unknown location!\n");
} else {
unsigned long page_cnt = DIV_ROUND_UP(ent->err_size,
PAGE_SIZE);
/* Break the unfortunate news. */
pr_emerg("SUN4V NON-RECOVERABLE ERROR: Memory failed at %016lX\n",
addr);
pr_emerg("SUN4V NON-RECOVERABLE ERROR: Claiming %lu ages.\n",
page_cnt);
while (page_cnt-- > 0) {
if (pfn_valid(addr >> PAGE_SHIFT))
get_page(pfn_to_page(addr >> PAGE_SHIFT));
addr += PAGE_SIZE;
}
}
info.si_signo = SIGKILL;
info.si_errno = 0;
info.si_trapno = 0;
force_sig_info(info.si_signo, &info, current);
return true;
}
if (attrs & SUN4V_ERR_ATTRS_PIO) {
siginfo_t info;
info.si_signo = SIGBUS;
info.si_code = BUS_ADRERR;
info.si_addr = (void __user *)sun4v_get_vaddr(regs);
force_sig_info(info.si_signo, &info, current);
return true;
}
/* Default to doing nothing */
return false;
}
/* We run with %pil set to PIL_NORMAL_MAX and PSTATE_IE enabled in %pstate.
* Log the event, clear the first word of the entry, and die.
*/
@ -2075,6 +2142,12 @@ void sun4v_nonresum_error(struct pt_regs *regs, unsigned long offset)
put_cpu();
if (!(regs->tstate & TSTATE_PRIV) &&
sun4v_nonresum_error_user_handled(regs, &local_copy)) {
/* DON'T PANIC: This userspace error was handled. */
return;
}
#ifdef CONFIG_PCI
/* Check for the special PCI poke sequence. */
if (pci_poke_in_progress && pci_poke_cpu == cpu) {

8
arch/x86/crypto/aesni-intel_glue.c
View File

@ -1085,9 +1085,9 @@ static void aesni_free_simds(void)
aesni_simd_skciphers[i]; i++)
simd_skcipher_free(aesni_simd_skciphers[i]);
for (i = 0; i < ARRAY_SIZE(aesni_simd_skciphers2) &&
aesni_simd_skciphers2[i].simd; i++)
simd_skcipher_free(aesni_simd_skciphers2[i].simd);
for (i = 0; i < ARRAY_SIZE(aesni_simd_skciphers2); i++)
if (aesni_simd_skciphers2[i].simd)
simd_skcipher_free(aesni_simd_skciphers2[i].simd);
}
static int __init aesni_init(void)
@ -1168,7 +1168,7 @@ static int __init aesni_init(void)
simd = simd_skcipher_create_compat(algname, drvname, basename);
err = PTR_ERR(simd);
if (IS_ERR(simd))
goto unregister_simds;
continue;
aesni_simd_skciphers2[i].simd = simd;
}

60
arch/x86/events/intel/rapl.c
View File

@ -161,7 +161,13 @@ static u64 rapl_timer_ms;
static inline struct rapl_pmu *cpu_to_rapl_pmu(unsigned int cpu)
{
return rapl_pmus->pmus[topology_logical_package_id(cpu)];
unsigned int pkgid = topology_logical_package_id(cpu);
/*
* The unsigned check also catches the '-1' return value for non
* existent mappings in the topology map.
*/
return pkgid < rapl_pmus->maxpkg ? rapl_pmus->pmus[pkgid] : NULL;
}
static inline u64 rapl_read_counter(struct perf_event *event)
@ -402,6 +408,8 @@ static int rapl_pmu_event_init(struct perf_event *event)
/* must be done before validate_group */
pmu = cpu_to_rapl_pmu(event->cpu);
if (!pmu)
return -EINVAL;
event->cpu = pmu->cpu;
event->pmu_private = pmu;
event->hw.event_base = msr;
@ -585,6 +593,20 @@ static int rapl_cpu_online(unsigned int cpu)
struct rapl_pmu *pmu = cpu_to_rapl_pmu(cpu);
int target;
if (!pmu) {
pmu = kzalloc_node(sizeof(*pmu), GFP_KERNEL, cpu_to_node(cpu));
if (!pmu)
return -ENOMEM;
raw_spin_lock_init(&pmu->lock);
INIT_LIST_HEAD(&pmu->active_list);
pmu->pmu = &rapl_pmus->pmu;
pmu->timer_interval = ms_to_ktime(rapl_timer_ms);
rapl_hrtimer_init(pmu);
rapl_pmus->pmus[topology_logical_package_id(cpu)] = pmu;
}
/*
* Check if there is an online cpu in the package which collects rapl
* events already.
@ -598,27 +620,6 @@ static int rapl_cpu_online(unsigned int cpu)
return 0;
}
static int rapl_cpu_prepare(unsigned int cpu)
{
struct rapl_pmu *pmu = cpu_to_rapl_pmu(cpu);
if (pmu)
return 0;
pmu = kzalloc_node(sizeof(*pmu), GFP_KERNEL, cpu_to_node(cpu));
if (!pmu)
return -ENOMEM;
raw_spin_lock_init(&pmu->lock);
INIT_LIST_HEAD(&pmu->active_list);
pmu->pmu = &rapl_pmus->pmu;
pmu->timer_interval = ms_to_ktime(rapl_timer_ms);
pmu->cpu = -1;
rapl_hrtimer_init(pmu);
rapl_pmus->pmus[topology_logical_package_id(cpu)] = pmu;
return 0;
}
static int rapl_check_hw_unit(bool apply_quirk)
{
u64 msr_rapl_power_unit_bits;
@ -803,29 +804,21 @@ static int __init rapl_pmu_init(void)
/*
* Install callbacks. Core will call them for each online cpu.
*/
ret = cpuhp_setup_state(CPUHP_PERF_X86_RAPL_PREP, "perf/x86/rapl:prepare",
rapl_cpu_prepare, NULL);
if (ret)
goto out;
ret = cpuhp_setup_state(CPUHP_AP_PERF_X86_RAPL_ONLINE,
"perf/x86/rapl:online",
rapl_cpu_online, rapl_cpu_offline);
if (ret)
goto out1;
goto out;
ret = perf_pmu_register(&rapl_pmus->pmu, "power", -1);
if (ret)
goto out2;
goto out1;
rapl_advertise();
return 0;
out2:
cpuhp_remove_state(CPUHP_AP_PERF_X86_RAPL_ONLINE);
out1:
cpuhp_remove_state(CPUHP_PERF_X86_RAPL_PREP);
cpuhp_remove_state(CPUHP_AP_PERF_X86_RAPL_ONLINE);
out:
pr_warn("Initialization failed (%d), disabled\n", ret);
cleanup_rapl_pmus();
@ -836,7 +829,6 @@ module_init(rapl_pmu_init);
static void __exit intel_rapl_exit(void)
{
cpuhp_remove_state_nocalls(CPUHP_AP_PERF_X86_RAPL_ONLINE);
cpuhp_remove_state_nocalls(CPUHP_PERF_X86_RAPL_PREP);
perf_pmu_unregister(&rapl_pmus->pmu);
cleanup_rapl_pmus();
}

232
arch/x86/events/intel/uncore.c
View File

@ -100,7 +100,13 @@ ssize_t uncore_event_show(struct kobject *kobj,
struct intel_uncore_box *uncore_pmu_to_box(struct intel_uncore_pmu *pmu, int cpu)
{
return pmu->boxes[topology_logical_package_id(cpu)];
unsigned int pkgid = topology_logical_package_id(cpu);
/*
* The unsigned check also catches the '-1' return value for non
* existent mappings in the topology map.
*/
return pkgid < max_packages ? pmu->boxes[pkgid] : NULL;
}
u64 uncore_msr_read_counter(struct intel_uncore_box *box, struct perf_event *event)
@ -764,30 +770,6 @@ static void uncore_pmu_unregister(struct intel_uncore_pmu *pmu)
pmu->registered = false;
}
static void __uncore_exit_boxes(struct intel_uncore_type *type, int cpu)
{
struct intel_uncore_pmu *pmu = type->pmus;
struct intel_uncore_box *box;
int i, pkg;
if (pmu) {
pkg = topology_physical_package_id(cpu);
for (i = 0; i < type->num_boxes; i++, pmu++) {
box = pmu->boxes[pkg];
if (box)
uncore_box_exit(box);
}
}
}
static void uncore_exit_boxes(void *dummy)
{
struct intel_uncore_type **types;
for (types = uncore_msr_uncores; *types; types++)
__uncore_exit_boxes(*types++, smp_processor_id());
}
static void uncore_free_boxes(struct intel_uncore_pmu *pmu)
{
int pkg;
@ -1058,86 +1040,6 @@ static void uncore_pci_exit(void)
}
}
static int uncore_cpu_dying(unsigned int cpu)
{
struct intel_uncore_type *type, **types = uncore_msr_uncores;
struct intel_uncore_pmu *pmu;
struct intel_uncore_box *box;
int i, pkg;
pkg = topology_logical_package_id(cpu);
for (; *types; types++) {
type = *types;
pmu = type->pmus;
for (i = 0; i < type->num_boxes; i++, pmu++) {
box = pmu->boxes[pkg];
if (box && atomic_dec_return(&box->refcnt) == 0)
uncore_box_exit(box);
}
}
return 0;
}
static int first_init;
static int uncore_cpu_starting(unsigned int cpu)
{
struct intel_uncore_type *type, **types = uncore_msr_uncores;
struct intel_uncore_pmu *pmu;
struct intel_uncore_box *box;
int i, pkg, ncpus = 1;
if (first_init) {
/*
* On init we get the number of online cpus in the package
* and set refcount for all of them.
*/
ncpus = cpumask_weight(topology_core_cpumask(cpu));
}
pkg = topology_logical_package_id(cpu);
for (; *types; types++) {
type = *types;
pmu = type->pmus;
for (i = 0; i < type->num_boxes; i++, pmu++) {
box = pmu->boxes[pkg];
if (!box)
continue;
/* The first cpu on a package activates the box */
if (atomic_add_return(ncpus, &box->refcnt) == ncpus)
uncore_box_init(box);
}
}
return 0;
}
static int uncore_cpu_prepare(unsigned int cpu)
{
struct intel_uncore_type *type, **types = uncore_msr_uncores;
struct intel_uncore_pmu *pmu;
struct intel_uncore_box *box;
int i, pkg;
pkg = topology_logical_package_id(cpu);
for (; *types; types++) {
type = *types;
pmu = type->pmus;
for (i = 0; i < type->num_boxes; i++, pmu++) {
if (pmu->boxes[pkg])
continue;
/* First cpu of a package allocates the box */
box = uncore_alloc_box(type, cpu_to_node(cpu));
if (!box)
return -ENOMEM;
box->pmu = pmu;
box->pkgid = pkg;
pmu->boxes[pkg] = box;
}
}
return 0;
}
static void uncore_change_type_ctx(struct intel_uncore_type *type, int old_cpu,
int new_cpu)
{
@ -1177,12 +1079,14 @@ static void uncore_change_context(struct intel_uncore_type **uncores,
static int uncore_event_cpu_offline(unsigned int cpu)
{
int target;
struct intel_uncore_type *type, **types = uncore_msr_uncores;
struct intel_uncore_pmu *pmu;
struct intel_uncore_box *box;
int i, pkg, target;
/* Check if exiting cpu is used for collecting uncore events */
if (!cpumask_test_and_clear_cpu(cpu, &uncore_cpu_mask))
return 0;
goto unref;
/* Find a new cpu to collect uncore events */
target = cpumask_any_but(topology_core_cpumask(cpu), cpu);
@ -1194,12 +1098,82 @@ static int uncore_event_cpu_offline(unsigned int cpu)
uncore_change_context(uncore_msr_uncores, cpu, target);
uncore_change_context(uncore_pci_uncores, cpu, target);
unref:
/* Clear the references */
pkg = topology_logical_package_id(cpu);
for (; *types; types++) {
type = *types;
pmu = type->pmus;
for (i = 0; i < type->num_boxes; i++, pmu++) {
box = pmu->boxes[pkg];
if (box && atomic_dec_return(&box->refcnt) == 0)
uncore_box_exit(box);
}
}
return 0;
}
static int allocate_boxes(struct intel_uncore_type **types,
unsigned int pkg, unsigned int cpu)
{
struct intel_uncore_box *box, *tmp;
struct intel_uncore_type *type;
struct intel_uncore_pmu *pmu;
LIST_HEAD(allocated);
int i;
/* Try to allocate all required boxes */
for (; *types; types++) {
type = *types;
pmu = type->pmus;
for (i = 0; i < type->num_boxes; i++, pmu++) {
if (pmu->boxes[pkg])
continue;
box = uncore_alloc_box(type, cpu_to_node(cpu));
if (!box)
goto cleanup;
box->pmu = pmu;
box->pkgid = pkg;
list_add(&box->active_list, &allocated);
}
}
/* Install them in the pmus */
list_for_each_entry_safe(box, tmp, &allocated, active_list) {
list_del_init(&box->active_list);
box->pmu->boxes[pkg] = box;
}
return 0;
cleanup:
list_for_each_entry_safe(box, tmp, &allocated, active_list) {
list_del_init(&box->active_list);
kfree(box);
}
return -ENOMEM;
}
static int uncore_event_cpu_online(unsigned int cpu)
{
int target;
struct intel_uncore_type *type, **types = uncore_msr_uncores;
struct intel_uncore_pmu *pmu;
struct intel_uncore_box *box;
int i, ret, pkg, target;
pkg = topology_logical_package_id(cpu);
ret = allocate_boxes(types, pkg, cpu);
if (ret)
return ret;
for (; *types; types++) {
type = *types;
pmu = type->pmus;
for (i = 0; i < type->num_boxes; i++, pmu++) {
box = pmu->boxes[pkg];
if (!box && atomic_inc_return(&box->refcnt) == 1)
uncore_box_init(box);
}
}
/*
* Check if there is an online cpu in the package
@ -1389,38 +1363,16 @@ static int __init intel_uncore_init(void)
if (cret && pret)
return -ENODEV;
/*
* Install callbacks. Core will call them for each online cpu.
*
* The first online cpu of each package allocates and takes
* the refcounts for all other online cpus in that package.
* If msrs are not enabled no allocation is required and
* uncore_cpu_prepare() is not called for each online cpu.
*/
if (!cret) {
ret = cpuhp_setup_state(CPUHP_PERF_X86_UNCORE_PREP,
"perf/x86/intel/uncore:prepare",
uncore_cpu_prepare, NULL);
if (ret)
goto err;
} else {
cpuhp_setup_state_nocalls(CPUHP_PERF_X86_UNCORE_PREP,
"perf/x86/intel/uncore:prepare",
uncore_cpu_prepare, NULL);
}
first_init = 1;
cpuhp_setup_state(CPUHP_AP_PERF_X86_UNCORE_STARTING,
"perf/x86/uncore:starting",
uncore_cpu_starting, uncore_cpu_dying);
first_init = 0;
cpuhp_setup_state(CPUHP_AP_PERF_X86_UNCORE_ONLINE,
"perf/x86/uncore:online",
uncore_event_cpu_online, uncore_event_cpu_offline);
/* Install hotplug callbacks to setup the targets for each package */
ret = cpuhp_setup_state(CPUHP_AP_PERF_X86_UNCORE_ONLINE,
"perf/x86/intel/uncore:online",
uncore_event_cpu_online,
uncore_event_cpu_offline);
if (ret)
goto err;
return 0;
err:
/* Undo box->init_box() */
on_each_cpu_mask(&uncore_cpu_mask, uncore_exit_boxes, NULL, 1);
uncore_types_exit(uncore_msr_uncores);
uncore_pci_exit();
return ret;
@ -1429,9 +1381,7 @@ module_init(intel_uncore_init);
static void __exit intel_uncore_exit(void)
{
cpuhp_remove_state_nocalls(CPUHP_AP_PERF_X86_UNCORE_ONLINE);
cpuhp_remove_state_nocalls(CPUHP_AP_PERF_X86_UNCORE_STARTING);
cpuhp_remove_state_nocalls(CPUHP_PERF_X86_UNCORE_PREP);
cpuhp_remove_state(CPUHP_AP_PERF_X86_UNCORE_ONLINE);
uncore_types_exit(uncore_msr_uncores);
uncore_pci_exit();
}

1
arch/x86/include/asm/microcode.h
View File

@ -140,6 +140,7 @@ extern void __init load_ucode_bsp(void);
extern void load_ucode_ap(void);
void reload_early_microcode(void);
extern bool get_builtin_firmware(struct cpio_data *cd, const char *name);
extern bool initrd_gone;
#else
static inline int __init microcode_init(void) { return 0; };
static inline void __init load_ucode_bsp(void) { }

1
arch/x86/include/asm/processor.h
View File

@ -104,6 +104,7 @@ struct cpuinfo_x86 {
__u8 x86_phys_bits;
/* CPUID returned core id bits: */
__u8 x86_coreid_bits;
__u8 cu_id;
/* Max extended CPUID function supported: */
__u32 extended_cpuid_level;
/* Maximum supported CPUID level, -1=no CPUID: */

4
arch/x86/kernel/apic/io_apic.c
View File

@ -1875,7 +1875,6 @@ static struct irq_chip ioapic_chip __read_mostly = {
.irq_ack = irq_chip_ack_parent,
.irq_eoi = ioapic_ack_level,
.irq_set_affinity = ioapic_set_affinity,
.irq_retrigger = irq_chip_retrigger_hierarchy,
.flags = IRQCHIP_SKIP_SET_WAKE,
};
@ -1887,7 +1886,6 @@ static struct irq_chip ioapic_ir_chip __read_mostly = {
.irq_ack = irq_chip_ack_parent,
.irq_eoi = ioapic_ir_ack_level,
.irq_set_affinity = ioapic_set_affinity,
.irq_retrigger = irq_chip_retrigger_hierarchy,
.flags = IRQCHIP_SKIP_SET_WAKE,
};
@ -2117,6 +2115,7 @@ static inline void __init check_timer(void)
if (idx != -1 && irq_trigger(idx))
unmask_ioapic_irq(irq_get_chip_data(0));
}
irq_domain_deactivate_irq(irq_data);
irq_domain_activate_irq(irq_data);
if (timer_irq_works()) {
if (disable_timer_pin_1 > 0)
@ -2138,6 +2137,7 @@ static inline void __init check_timer(void)
* legacy devices should be connected to IO APIC #0
*/
replace_pin_at_irq_node(data, node, apic1, pin1, apic2, pin2);
irq_domain_deactivate_irq(irq_data);
irq_domain_activate_irq(irq_data);
legacy_pic->unmask(0);
if (timer_irq_works()) {

16
arch/x86/kernel/cpu/amd.c
View File

@ -309,8 +309,22 @@ static void amd_get_topology(struct cpuinfo_x86 *c)
/* get information required for multi-node processors */
if (boot_cpu_has(X86_FEATURE_TOPOEXT)) {
u32 eax, ebx, ecx, edx;
node_id = cpuid_ecx(0x8000001e) & 7;
cpuid(0x8000001e, &eax, &ebx, &ecx, &edx);
node_id = ecx & 0xff;
smp_num_siblings = ((ebx >> 8) & 0xff) + 1;
if (c->x86 == 0x15)
c->cu_id = ebx & 0xff;
if (c->x86 >= 0x17) {
c->cpu_core_id = ebx & 0xff;
if (smp_num_siblings > 1)
c->x86_max_cores /= smp_num_siblings;
}
/*
* We may have multiple LLCs if L3 caches exist, so check if we

1
arch/x86/kernel/cpu/common.c
View File

@ -1015,6 +1015,7 @@ static void identify_cpu(struct cpuinfo_x86 *c)
c->x86_model_id[0] = '\0'; /* Unset */
c->x86_max_cores = 1;
c->x86_coreid_bits = 0;
c->cu_id = 0xff;
#ifdef CONFIG_X86_64
c->x86_clflush_size = 64;
c->x86_phys_bits = 36;

31
arch/x86/kernel/cpu/mcheck/mce.c
View File

@ -1373,20 +1373,15 @@ static unsigned long mce_adjust_timer_default(unsigned long interval)
static unsigned long (*mce_adjust_timer)(unsigned long interval) = mce_adjust_timer_default;
static void __restart_timer(struct timer_list *t, unsigned long interval)
static void __start_timer(struct timer_list *t, unsigned long interval)
{
unsigned long when = jiffies + interval;
unsigned long flags;
local_irq_save(flags);
if (timer_pending(t)) {
if (time_before(when, t->expires))
mod_timer(t, when);
} else {
t->expires = round_jiffies(when);
add_timer_on(t, smp_processor_id());
}
if (!timer_pending(t) || time_before(when, t->expires))
mod_timer(t, round_jiffies(when));
local_irq_restore(flags);
}
@ -1421,7 +1416,7 @@ static void mce_timer_fn(unsigned long data)
done:
__this_cpu_write(mce_next_interval, iv);
__restart_timer(t, iv);
__start_timer(t, iv);
}
/*
@ -1432,7 +1427,7 @@ void mce_timer_kick(unsigned long interval)
struct timer_list *t = this_cpu_ptr(&mce_timer);
unsigned long iv = __this_cpu_read(mce_next_interval);
__restart_timer(t, interval);
__start_timer(t, interval);
if (interval < iv)
__this_cpu_write(mce_next_interval, interval);
@ -1779,17 +1774,15 @@ static void __mcheck_cpu_clear_vendor(struct cpuinfo_x86 *c)
}
}
static void mce_start_timer(unsigned int cpu, struct timer_list *t)
static void mce_start_timer(struct timer_list *t)
{
unsigned long iv = check_interval * HZ;
if (mca_cfg.ignore_ce || !iv)
return;
per_cpu(mce_next_interval, cpu) = iv;
t->expires = round_jiffies(jiffies + iv);
add_timer_on(t, cpu);
this_cpu_write(mce_next_interval, iv);
__start_timer(t, iv);
}
static void __mcheck_cpu_setup_timer(void)
@ -1806,7 +1799,7 @@ static void __mcheck_cpu_init_timer(void)
unsigned int cpu = smp_processor_id();
setup_pinned_timer(t, mce_timer_fn, cpu);
mce_start_timer(cpu, t);
mce_start_timer(t);
}
/* Handle unconfigured int18 (should never happen) */
@ -2566,7 +2559,7 @@ static int mce_cpu_dead(unsigned int cpu)
static int mce_cpu_online(unsigned int cpu)
{
struct timer_list *t = &per_cpu(mce_timer, cpu);
struct timer_list *t = this_cpu_ptr(&mce_timer);
int ret;
mce_device_create(cpu);
@ -2577,13 +2570,13 @@ static int mce_cpu_online(unsigned int cpu)
return ret;
}
mce_reenable_cpu();
mce_start_timer(cpu, t);
mce_start_timer(t);
return 0;
}
static int mce_cpu_pre_down(unsigned int cpu)
{
struct timer_list *t = &per_cpu(mce_timer, cpu);
struct timer_list *t = this_cpu_ptr(&mce_timer);
mce_disable_cpu();
del_timer_sync(t);

5
arch/x86/kernel/cpu/microcode/amd.c
View File

@ -384,8 +384,9 @@ void load_ucode_amd_ap(unsigned int family)
reget:
if (!get_builtin_microcode(&cp, family)) {
#ifdef CONFIG_BLK_DEV_INITRD
cp = find_cpio_data(ucode_path, (void *)initrd_start,
initrd_end - initrd_start, NULL);
if (!initrd_gone)
cp = find_cpio_data(ucode_path, (void *)initrd_start,
initrd_end - initrd_start, NULL);
#endif
if (!(cp.data && cp.size)) {
/*

22
arch/x86/kernel/cpu/microcode/core.c
View File

@ -46,6 +46,8 @@
static struct microcode_ops *microcode_ops;
static bool dis_ucode_ldr = true;
bool initrd_gone;
LIST_HEAD(microcode_cache);
/*
@ -190,21 +192,24 @@ void load_ucode_ap(void)
static int __init save_microcode_in_initrd(void)
{
struct cpuinfo_x86 *c = &boot_cpu_data;
int ret = -EINVAL;
switch (c->x86_vendor) {
case X86_VENDOR_INTEL:
if (c->x86 >= 6)
return save_microcode_in_initrd_intel();
ret = save_microcode_in_initrd_intel();
break;
case X86_VENDOR_AMD:
if (c->x86 >= 0x10)
return save_microcode_in_initrd_amd(c->x86);
ret = save_microcode_in_initrd_amd(c->x86);
break;
default:
break;
}
return -EINVAL;
initrd_gone = true;
return ret;
}
struct cpio_data find_microcode_in_initrd(const char *path, bool use_pa)
@ -247,9 +252,16 @@ struct cpio_data find_microcode_in_initrd(const char *path, bool use_pa)
* has the virtual address of the beginning of the initrd. It also
* possibly relocates the ramdisk. In either case, initrd_start contains
* the updated address so use that instead.
*
* initrd_gone is for the hotplug case where we've thrown out initrd
* already.
*/
if (!use_pa && initrd_start)
start = initrd_start;
if (!use_pa) {
if (initrd_gone)
return (struct cpio_data){ NULL, 0, "" };
if (initrd_start)
start = initrd_start;
}
return find_cpio_data(path, (void *)start, size, NULL);
#else /* !CONFIG_BLK_DEV_INITRD */

9
arch/x86/kernel/cpu/microcode/intel.c
View File

@ -41,7 +41,7 @@
static const char ucode_path[] = "kernel/x86/microcode/GenuineIntel.bin";
/* Current microcode patch used in early patching */
/* Current microcode patch used in early patching on the APs. */
struct microcode_intel *intel_ucode_patch;
static inline bool cpu_signatures_match(unsigned int s1, unsigned int p1,
@ -607,12 +607,6 @@ int __init save_microcode_in_initrd_intel(void)
struct ucode_cpu_info uci;
struct cpio_data cp;
/*
* AP loading didn't find any microcode patch, no need to save anything.
*/
if (!intel_ucode_patch || IS_ERR(intel_ucode_patch))
return 0;
if (!load_builtin_intel_microcode(&cp))
cp = find_microcode_in_initrd(ucode_path, false);
@ -628,7 +622,6 @@ int __init save_microcode_in_initrd_intel(void)
return 0;
}
/*
* @res_patch, output: a pointer to the patch we found.
*/

4
arch/x86/kernel/fpu/core.c
View File

@ -9,6 +9,7 @@
#include <asm/fpu/regset.h>
#include <asm/fpu/signal.h>
#include <asm/fpu/types.h>
#include <asm/fpu/xstate.h>
#include <asm/traps.h>
#include <linux/hardirq.h>
@ -183,7 +184,8 @@ void fpstate_init(union fpregs_state *state)
* it will #GP. Make sure it is replaced after the memset().
*/
if (static_cpu_has(X86_FEATURE_XSAVES))
state->xsave.header.xcomp_bv = XCOMP_BV_COMPACTED_FORMAT;
state->xsave.header.xcomp_bv = XCOMP_BV_COMPACTED_FORMAT |
xfeatures_mask;
if (static_cpu_has(X86_FEATURE_FXSR))
fpstate_init_fxstate(&state->fxsave);

1
arch/x86/kernel/hpet.c
View File

@ -352,6 +352,7 @@ static int hpet_resume(struct clock_event_device *evt, int timer)
} else {
struct hpet_dev *hdev = EVT_TO_HPET_DEV(evt);
irq_domain_deactivate_irq(irq_get_irq_data(hdev->irq));
irq_domain_activate_irq(irq_get_irq_data(hdev->irq));
disable_irq(hdev->irq);
irq_set_affinity(hdev->irq, cpumask_of(hdev->cpu));

12
arch/x86/kernel/smpboot.c
View File

@ -433,9 +433,15 @@ static bool match_smt(struct cpuinfo_x86 *c, struct cpuinfo_x86 *o)
int cpu1 = c->cpu_index, cpu2 = o->cpu_index;
if (c->phys_proc_id == o->phys_proc_id &&
per_cpu(cpu_llc_id, cpu1) == per_cpu(cpu_llc_id, cpu2) &&
c->cpu_core_id == o->cpu_core_id)
return topology_sane(c, o, "smt");
per_cpu(cpu_llc_id, cpu1) == per_cpu(cpu_llc_id, cpu2)) {
if (c->cpu_core_id == o->cpu_core_id)
return topology_sane(c, o, "smt");
if ((c->cu_id != 0xff) &&
(o->cu_id != 0xff) &&
(c->cu_id == o->cu_id))
return topology_sane(c, o, "smt");
}
} else if (c->phys_proc_id == o->phys_proc_id &&
c->cpu_core_id == o->cpu_core_id) {

5
arch/x86/kernel/tsc.c
View File

@ -1356,6 +1356,9 @@ void __init tsc_init(void)
(unsigned long)cpu_khz / 1000,
(unsigned long)cpu_khz % 1000);
/* Sanitize TSC ADJUST before cyc2ns gets initialized */
tsc_store_and_check_tsc_adjust(true);
/*
* Secondary CPUs do not run through tsc_init(), so set up
* all the scale factors for all CPUs, assuming the same
@ -1386,8 +1389,6 @@ void __init tsc_init(void)
if (unsynchronized_tsc())
mark_tsc_unstable("TSCs unsynchronized");
else
tsc_store_and_check_tsc_adjust(true);
check_system_tsc_reliable();

16
arch/x86/kernel/tsc_sync.c
View File

@ -286,13 +286,6 @@ void check_tsc_sync_source(int cpu)
if (unsynchronized_tsc())
return;
if (tsc_clocksource_reliable) {
if (cpu == (nr_cpu_ids-1) || system_state != SYSTEM_BOOTING)
pr_info(
"Skipped synchronization checks as TSC is reliable.\n");
return;
}
/*
* Set the maximum number of test runs to
* 1 if the CPU does not provide the TSC_ADJUST MSR
@ -380,14 +373,19 @@ void check_tsc_sync_target(void)
int cpus = 2;
/* Also aborts if there is no TSC. */
if (unsynchronized_tsc() || tsc_clocksource_reliable)
if (unsynchronized_tsc())
return;
/*
* Store, verify and sanitize the TSC adjust register. If
* successful skip the test.
*
* The test is also skipped when the TSC is marked reliable. This
* is true for SoCs which have no fallback clocksource. On these
* SoCs the TSC is frequency synchronized, but still the TSC ADJUST
* register might have been wreckaged by the BIOS..
*/
if (tsc_store_and_check_tsc_adjust(false)) {
if (tsc_store_and_check_tsc_adjust(false) || tsc_clocksource_reliable) {
atomic_inc(&skip_test);
return;
}

1
arch/x86/kvm/x86.c
View File

@ -3182,6 +3182,7 @@ static void fill_xsave(u8 *dest, struct kvm_vcpu *vcpu)
memcpy(dest, xsave, XSAVE_HDR_OFFSET);
/* Set XSTATE_BV */
xstate_bv &= vcpu->arch.guest_supported_xcr0 | XFEATURE_MASK_FPSSE;
*(u64 *)(dest + XSAVE_HDR_OFFSET) = xstate_bv;
/*

2
arch/x86/mm/dump_pagetables.c
View File

@ -15,6 +15,7 @@
#include <linux/debugfs.h>
#include <linux/mm.h>
#include <linux/init.h>
#include <linux/sched.h>
#include <linux/seq_file.h>
#include <asm/pgtable.h>
@ -406,6 +407,7 @@ static void ptdump_walk_pgd_level_core(struct seq_file *m, pgd_t *pgd,
} else
note_page(m, &st, __pgprot(0), 1);
cond_resched();
start++;
}

16
arch/x86/platform/efi/efi_64.c
View File

@ -268,6 +268,22 @@ int __init efi_setup_page_tables(unsigned long pa_memmap, unsigned num_pages)
efi_scratch.use_pgd = true;
/*
* Certain firmware versions are way too sentimential and still believe
* they are exclusive and unquestionable owners of the first physical page,
* even though they explicitly mark it as EFI_CONVENTIONAL_MEMORY
* (but then write-access it later during SetVirtualAddressMap()).
*
* Create a 1:1 mapping for this page, to avoid triple faults during early
* boot with such firmware. We are free to hand this page to the BIOS,
* as trim_bios_range() will reserve the first page and isolate it away
* from memory allocators anyway.
*/
if (kernel_map_pages_in_pgd(pgd, 0x0, 0x0, 1, _PAGE_RW)) {
pr_err("Failed to create 1:1 mapping for the first page!\n");
return 1;
}
/*
* When making calls to the firmware everything needs to be 1:1
* mapped and addressable with 32-bit pointers. Map the kernel

2
arch/xtensa/kernel/setup.c
View File

@ -419,7 +419,7 @@ subsys_initcall(topology_init);
void cpu_reset(void)
{
#if XCHAL_HAVE_PTP_MMU
#if XCHAL_HAVE_PTP_MMU && IS_ENABLED(CONFIG_MMU)
local_irq_disable();
/*
* We have full MMU: all autoload ways, ways 7, 8 and 9 of DTLB must

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