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Add get_eld audio component for i915/HD-audio 

Here are the patchset to add get_eld op to audio component for
 communicating more directly between i915 and HD-audio.
 
 Currently, the HDMI/DP audio status and ELD are notified and obtained
 via the hardware-level communication over HD-audio unsolicited event
 and verbs although the graphics driver holds the exactly same
 information.  As we already have a notification via audio component,
 this is another step forward; namely, the audio driver may fetch
 directly the audio status and ELD via the new component op.
 
 The commits are based on Dave's latest drm-next branch.
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Merge tag 'drm-i915-get-eld' of tiwai/sound into drm-intel-next-queued

Add get_eld audio component for i915/HD-audio

Currently, the HDMI/DP audio status and ELD are notified and obtained
via the hardware-level communication over HD-audio unsolicited event
and verbs although the graphics driver holds the exactly same
information.  As we already have a notification via audio component,
this is another step forward; namely, the audio driver may fetch
directly the audio status and ELD via the new component op.

Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
This commit is contained in:
Daniel Vetter 2015-12-11 19:28:27 +01:00
Родитель 9e7d18c08a 0bdf5a0564
Коммит 618100f8a8
666 изменённых файлов: 9125 добавлений и 4346 удалений
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48
Documentation/DocBook/gpu.tmpl
Просмотреть файл

@ -615,18 +615,6 @@ char *date;</synopsis>
<function>drm_gem_object_init</function>. Storage for private GEM
objects must be managed by drivers.
</para>
<para>
Drivers that do not need to extend GEM objects with private information
can call the <function>drm_gem_object_alloc</function> function to
allocate and initialize a struct <structname>drm_gem_object</structname>
instance. The GEM core will call the optional driver
<methodname>gem_init_object</methodname> operation after initializing
the GEM object with <function>drm_gem_object_init</function>.
<synopsis>int (*gem_init_object) (struct drm_gem_object *obj);</synopsis>
</para>
<para>
No alloc-and-init function exists for private GEM objects.
</para>
</sect3>
<sect3>
<title>GEM Objects Lifetime</title>
@ -635,10 +623,10 @@ char *date;</synopsis>
acquired and release by <function>calling drm_gem_object_reference</function>
and <function>drm_gem_object_unreference</function> respectively. The
caller must hold the <structname>drm_device</structname>
<structfield>struct_mutex</structfield> lock. As a convenience, GEM
provides the <function>drm_gem_object_reference_unlocked</function> and
<function>drm_gem_object_unreference_unlocked</function> functions that
can be called without holding the lock.
<structfield>struct_mutex</structfield> lock when calling
<function>drm_gem_object_reference</function>. As a convenience, GEM
provides <function>drm_gem_object_unreference_unlocked</function>
functions that can be called without holding the lock.
</para>
<para>
When the last reference to a GEM object is released the GEM core calls
@ -649,15 +637,9 @@ char *date;</synopsis>
</para>
<para>
<synopsis>void (*gem_free_object) (struct drm_gem_object *obj);</synopsis>
Drivers are responsible for freeing all GEM object resources, including
the resources created by the GEM core. If an mmap offset has been
created for the object (in which case
<structname>drm_gem_object</structname>::<structfield>map_list</structfield>::<structfield>map</structfield>
is not NULL) it must be freed by a call to
<function>drm_gem_free_mmap_offset</function>. The shmfs backing store
must be released by calling <function>drm_gem_object_release</function>
(that function can safely be called if no shmfs backing store has been
created).
Drivers are responsible for freeing all GEM object resources. This includes
the resources created by the GEM core, which need to be released with
<function>drm_gem_object_release</function>.
</para>
</sect3>
<sect3>
@ -740,17 +722,10 @@ char *date;</synopsis>
DRM identifies the GEM object to be mapped by a fake offset passed
through the mmap offset argument. Prior to being mapped, a GEM object
must thus be associated with a fake offset. To do so, drivers must call
<function>drm_gem_create_mmap_offset</function> on the object. The
function allocates a fake offset range from a pool and stores the
offset divided by PAGE_SIZE in
<literal>obj-&gt;map_list.hash.key</literal>. Care must be taken not to
call <function>drm_gem_create_mmap_offset</function> if a fake offset
has already been allocated for the object. This can be tested by
<literal>obj-&gt;map_list.map</literal> being non-NULL.
<function>drm_gem_create_mmap_offset</function> on the object.
</para>
<para>
Once allocated, the fake offset value
(<literal>obj-&gt;map_list.hash.key &lt;&lt; PAGE_SHIFT</literal>)
must be passed to the application in a driver-specific way and can then
be used as the mmap offset argument.
</para>
@ -836,10 +811,11 @@ char *date;</synopsis>
abstracted from the client in libdrm.
</para>
</sect3>
<sect3>
<title>GEM Function Reference</title>
</sect2>
<sect2>
<title>GEM Function Reference</title>
!Edrivers/gpu/drm/drm_gem.c
</sect3>
!Iinclude/drm/drm_gem.h
</sect2>
<sect2>
<title>VMA Offset Manager</title>

18
Documentation/arm/keystone/Overview.txt
Просмотреть файл

@ -49,24 +49,6 @@ specified through DTS. Following are the DTS used:-
The device tree documentation for the keystone machines are located at
Documentation/devicetree/bindings/arm/keystone/keystone.txt
Known issues & workaround
-------------------------
Some of the device drivers used on keystone are re-used from that from
DaVinci and other TI SoCs. These device drivers may use clock APIs directly.
Some of the keystone specific drivers such as netcp uses run time power
management API instead to enable clock. As this API has limitations on
keystone, following workaround is needed to boot Linux.
Add 'clk_ignore_unused' to the bootargs env variable in u-boot. Otherwise
clock frameworks will try to disable clocks that are unused and disable
the hardware. This is because netcp related power domain and clock
domains are enabled in u-boot as run time power management API currently
doesn't enable clocks for netcp due to a limitation. This workaround is
expected to be removed in the future when proper API support becomes
available. Until then, this work around is needed.
Document Author
---------------
Murali Karicheri <m-karicheri2@ti.com>

3
Documentation/block/null_blk.txt
Просмотреть файл

@ -70,3 +70,6 @@ use_per_node_hctx=[0/1]: Default: 0
parameter.
1: The multi-queue block layer is instantiated with a hardware dispatch
queue for each CPU node in the system.
use_lightnvm=[0/1]: Default: 0
Register device with LightNVM. Requires blk-mq to be used.

6
Documentation/devicetree/bindings/net/marvell-armada-370-neta.txt
Просмотреть файл

@ -8,6 +8,11 @@ Required properties:
- phy-mode: See ethernet.txt file in the same directory
- clocks: a pointer to the reference clock for this device.
Optional properties:
- tx-csum-limit: maximum mtu supported by port that allow TX checksum.
Value is presented in bytes. If not used, by default 1600B is set for
"marvell,armada-370-neta" and 9800B for others.
Example:
ethernet@d0070000 {
@ -15,6 +20,7 @@ ethernet@d0070000 {
reg = <0xd0070000 0x2500>;
interrupts = <8>;
clocks = <&gate_clk 4>;
tx-csum-limit = <9800>
status = "okay";
phy = <&phy0>;
phy-mode = "rgmii-id";

4
Documentation/devicetree/bindings/thermal/rockchip-thermal.txt
Просмотреть файл

@ -1,7 +1,9 @@
* Temperature Sensor ADC (TSADC) on rockchip SoCs
Required properties:
- compatible : "rockchip,rk3288-tsadc"
- compatible : should be "rockchip,<name>-tsadc"
"rockchip,rk3288-tsadc": found on RK3288 SoCs
"rockchip,rk3368-tsadc": found on RK3368 SoCs
- reg : physical base address of the controller and length of memory mapped
region.
- interrupts : The interrupt number to the cpu. The interrupt specifier format

18
MAINTAINERS
Просмотреть файл

@ -318,7 +318,7 @@ M: Zhang Rui <rui.zhang@intel.com>
L: linux-acpi@vger.kernel.org
W: https://01.org/linux-acpi
S: Supported
F: drivers/acpi/video.c
F: drivers/acpi/acpi_video.c
ACPI WMI DRIVER
L: platform-driver-x86@vger.kernel.org
@ -1847,7 +1847,7 @@ S: Supported
F: drivers/net/wireless/ath/ath6kl/
WILOCITY WIL6210 WIRELESS DRIVER
M: Vladimir Kondratiev <qca_vkondrat@qca.qualcomm.com>
M: Maya Erez <qca_merez@qca.qualcomm.com>
L: linux-wireless@vger.kernel.org
L: wil6210@qca.qualcomm.com
S: Supported
@ -1931,7 +1931,7 @@ S: Supported
F: drivers/i2c/busses/i2c-at91.c
ATMEL ISI DRIVER
M: Josh Wu <josh.wu@atmel.com>
M: Ludovic Desroches <ludovic.desroches@atmel.com>
L: linux-media@vger.kernel.org
S: Supported
F: drivers/media/platform/soc_camera/atmel-isi.c
@ -1950,7 +1950,8 @@ S: Supported
F: drivers/net/ethernet/cadence/
ATMEL NAND DRIVER
M: Josh Wu <josh.wu@atmel.com>
M: Wenyou Yang <wenyou.yang@atmel.com>
M: Josh Wu <rainyfeeling@outlook.com>
L: linux-mtd@lists.infradead.org
S: Supported
F: drivers/mtd/nand/atmel_nand*
@ -6366,6 +6367,7 @@ F: arch/*/include/asm/pmem.h
LIGHTNVM PLATFORM SUPPORT
M: Matias Bjorling <mb@lightnvm.io>
W: http://github/OpenChannelSSD
L: linux-block@vger.kernel.org
S: Maintained
F: drivers/lightnvm/
F: include/linux/lightnvm.h
@ -9425,8 +9427,10 @@ F: include/scsi/sg.h
SCSI SUBSYSTEM
M: "James E.J. Bottomley" <JBottomley@odin.com>
L: linux-scsi@vger.kernel.org
T: git git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi.git
M: "Martin K. Petersen" <martin.petersen@oracle.com>
T: git git://git.kernel.org/pub/scm/linux/kernel/git/mkp/scsi.git
L: linux-scsi@vger.kernel.org
S: Maintained
F: drivers/scsi/
F: include/scsi/
@ -10901,9 +10905,9 @@ S: Maintained
F: drivers/media/tuners/tua9001*
TULIP NETWORK DRIVERS
M: Grant Grundler <grundler@parisc-linux.org>
L: netdev@vger.kernel.org
S: Maintained
L: linux-parisc@vger.kernel.org
S: Orphan
F: drivers/net/ethernet/dec/tulip/
TUN/TAP driver

2
Makefile
Просмотреть файл

@ -1,7 +1,7 @@
VERSION = 4
PATCHLEVEL = 4
SUBLEVEL = 0
EXTRAVERSION = -rc2
EXTRAVERSION = -rc4
NAME = Blurry Fish Butt
# *DOCUMENTATION*

2
arch/arc/configs/axs101_defconfig
Просмотреть файл

@ -1,4 +1,4 @@
CONFIG_CROSS_COMPILE="arc-linux-uclibc-"
CONFIG_CROSS_COMPILE="arc-linux-"
CONFIG_DEFAULT_HOSTNAME="ARCLinux"
# CONFIG_SWAP is not set
CONFIG_SYSVIPC=y

2
arch/arc/configs/axs103_defconfig
Просмотреть файл

@ -1,4 +1,4 @@
CONFIG_CROSS_COMPILE="arc-linux-uclibc-"
CONFIG_CROSS_COMPILE="arc-linux-"
CONFIG_DEFAULT_HOSTNAME="ARCLinux"
# CONFIG_SWAP is not set
CONFIG_SYSVIPC=y

2
arch/arc/configs/axs103_smp_defconfig
Просмотреть файл

@ -1,4 +1,4 @@
CONFIG_CROSS_COMPILE="arc-linux-uclibc-"
CONFIG_CROSS_COMPILE="arc-linux-"
CONFIG_DEFAULT_HOSTNAME="ARCLinux"
# CONFIG_SWAP is not set
CONFIG_SYSVIPC=y

2
arch/arc/configs/nsim_hs_defconfig
Просмотреть файл

@ -1,4 +1,4 @@
CONFIG_CROSS_COMPILE="arc-linux-uclibc-"
CONFIG_CROSS_COMPILE="arc-linux-"
# CONFIG_LOCALVERSION_AUTO is not set
CONFIG_DEFAULT_HOSTNAME="ARCLinux"
# CONFIG_SWAP is not set

2
arch/arc/configs/nsim_hs_smp_defconfig
Просмотреть файл

@ -1,4 +1,4 @@
CONFIG_CROSS_COMPILE="arc-linux-uclibc-"
CONFIG_CROSS_COMPILE="arc-linux-"
# CONFIG_LOCALVERSION_AUTO is not set
CONFIG_DEFAULT_HOSTNAME="ARCLinux"
# CONFIG_SWAP is not set

2
arch/arc/configs/nsimosci_hs_defconfig
Просмотреть файл

@ -1,4 +1,4 @@
CONFIG_CROSS_COMPILE="arc-linux-uclibc-"
CONFIG_CROSS_COMPILE="arc-linux-"
# CONFIG_LOCALVERSION_AUTO is not set
CONFIG_DEFAULT_HOSTNAME="ARCLinux"
# CONFIG_SWAP is not set

2
arch/arc/configs/nsimosci_hs_smp_defconfig
Просмотреть файл

@ -1,4 +1,4 @@
CONFIG_CROSS_COMPILE="arc-linux-uclibc-"
CONFIG_CROSS_COMPILE="arc-linux-"
CONFIG_DEFAULT_HOSTNAME="ARCLinux"
# CONFIG_SWAP is not set
CONFIG_SYSVIPC=y

2
arch/arc/configs/vdk_hs38_defconfig
Просмотреть файл

@ -1,4 +1,4 @@
CONFIG_CROSS_COMPILE="arc-linux-uclibc-"
CONFIG_CROSS_COMPILE="arc-linux-"
# CONFIG_LOCALVERSION_AUTO is not set
CONFIG_DEFAULT_HOSTNAME="ARCLinux"
# CONFIG_CROSS_MEMORY_ATTACH is not set

2
arch/arc/configs/vdk_hs38_smp_defconfig
Просмотреть файл

@ -1,4 +1,4 @@
CONFIG_CROSS_COMPILE="arc-linux-uclibc-"
CONFIG_CROSS_COMPILE="arc-linux-"
# CONFIG_LOCALVERSION_AUTO is not set
CONFIG_DEFAULT_HOSTNAME="ARCLinux"
# CONFIG_CROSS_MEMORY_ATTACH is not set

3
arch/arc/include/asm/irqflags-arcv2.h
Просмотреть файл

@ -37,6 +37,9 @@
#define ISA_INIT_STATUS_BITS (STATUS_IE_MASK | STATUS_AD_MASK | \
(ARCV2_IRQ_DEF_PRIO << 1))
/* SLEEP needs default irq priority (<=) which can interrupt the doze */
#define ISA_SLEEP_ARG (0x10 | ARCV2_IRQ_DEF_PRIO)
#ifndef __ASSEMBLY__
/*

2
arch/arc/include/asm/irqflags-compact.h
Просмотреть файл

@ -43,6 +43,8 @@
#define ISA_INIT_STATUS_BITS STATUS_IE_MASK
#define ISA_SLEEP_ARG 0x3
#ifndef __ASSEMBLY__
/******************************************************************

2
arch/arc/kernel/ctx_sw.c
Просмотреть файл

@ -58,8 +58,6 @@ __switch_to(struct task_struct *prev_task, struct task_struct *next_task)
"st sp, [r24] \n\t"
#endif
"sync \n\t"
/*
* setup _current_task with incoming tsk.
* optionally, set r25 to that as well

3
arch/arc/kernel/ctx_sw_asm.S
Просмотреть файл

@ -44,9 +44,6 @@ __switch_to:
* don't need to do anything special to return it
*/
/* hardware memory barrier */
sync
/*
* switch to new task, contained in r1
* Temp reg r3 is required to get the ptr to store val

9
arch/arc/kernel/process.c
Просмотреть файл

@ -44,11 +44,10 @@ SYSCALL_DEFINE0(arc_gettls)
void arch_cpu_idle(void)
{
/* sleep, but enable all interrupts before committing */
if (is_isa_arcompact()) {
__asm__("sleep 0x3");
} else {
__asm__("sleep 0x10");
}
__asm__ __volatile__(
"sleep %0 \n"
:
:"I"(ISA_SLEEP_ARG)); /* can't be "r" has to be embedded const */
}
asmlinkage void ret_from_fork(void);

37
arch/arc/kernel/unwind.c
Просмотреть файл

@ -986,42 +986,13 @@ int arc_unwind(struct unwind_frame_info *frame)
(const u8 *)(fde +
1) +
*fde, ptrType);
if (pc >= endLoc)
if (pc >= endLoc) {
fde = NULL;
} else
fde = NULL;
}
if (fde == NULL) {
for (fde = table->address, tableSize = table->size;
cie = NULL, tableSize > sizeof(*fde)
&& tableSize - sizeof(*fde) >= *fde;
tableSize -= sizeof(*fde) + *fde,
fde += 1 + *fde / sizeof(*fde)) {
cie = cie_for_fde(fde, table);
if (cie == &bad_cie) {
cie = NULL;
break;
}
if (cie == NULL
|| cie == &not_fde
|| (ptrType = fde_pointer_type(cie)) < 0)
continue;
ptr = (const u8 *)(fde + 2);
startLoc = read_pointer(&ptr,
(const u8 *)(fde + 1) +
*fde, ptrType);
if (!startLoc)
continue;
if (!(ptrType & DW_EH_PE_indirect))
ptrType &=
DW_EH_PE_FORM | DW_EH_PE_signed;
endLoc =
startLoc + read_pointer(&ptr,
(const u8 *)(fde +
1) +
*fde, ptrType);
if (pc >= startLoc && pc < endLoc)
break;
} else {
fde = NULL;
cie = NULL;
}
}
}

4
arch/arc/mm/tlb.c
Просмотреть файл

@ -619,10 +619,10 @@ void update_mmu_cache(struct vm_area_struct *vma, unsigned long vaddr_unaligned,
int dirty = !test_and_set_bit(PG_dc_clean, &page->flags);
if (dirty) {
/* wback + inv dcache lines */
/* wback + inv dcache lines (K-mapping) */
__flush_dcache_page(paddr, paddr);
/* invalidate any existing icache lines */
/* invalidate any existing icache lines (U-mapping) */
if (vma->vm_flags & VM_EXEC)
__inv_icache_page(paddr, vaddr);
}

4
arch/arm/Kconfig
Просмотреть файл

@ -76,6 +76,8 @@ config ARM
select IRQ_FORCED_THREADING
select MODULES_USE_ELF_REL
select NO_BOOTMEM
select OF_EARLY_FLATTREE if OF
select OF_RESERVED_MEM if OF
select OLD_SIGACTION
select OLD_SIGSUSPEND3
select PERF_USE_VMALLOC
@ -1822,8 +1824,6 @@ config USE_OF
bool "Flattened Device Tree support"
select IRQ_DOMAIN
select OF
select OF_EARLY_FLATTREE
select OF_RESERVED_MEM
help
Include support for flattened device tree machine descriptions.

1
arch/arm/boot/dts/am57xx-beagle-x15.dts
Просмотреть файл

@ -604,6 +604,7 @@
reg = <0x6f>;
interrupts-extended = <&crossbar_mpu GIC_SPI 2 IRQ_TYPE_EDGE_RISING>,
<&dra7_pmx_core 0x424>;
interrupt-names = "irq", "wakeup";
pinctrl-names = "default";
pinctrl-0 = <&mcp79410_pins_default>;

6
arch/arm/boot/dts/animeo_ip.dts
Просмотреть файл

@ -155,21 +155,21 @@
label = "keyswitch_in";
gpios = <&pioB 1 GPIO_ACTIVE_HIGH>;
linux,code = <28>;
gpio-key,wakeup;
wakeup-source;
};
error_in {
label = "error_in";
gpios = <&pioB 2 GPIO_ACTIVE_HIGH>;
linux,code = <29>;
gpio-key,wakeup;
wakeup-source;
};
btn {
label = "btn";
gpios = <&pioC 23 GPIO_ACTIVE_HIGH>;
linux,code = <31>;
gpio-key,wakeup;
wakeup-source;
};
};
};

1
arch/arm/boot/dts/armada-38x.dtsi
Просмотреть файл

@ -498,6 +498,7 @@
reg = <0x70000 0x4000>;
interrupts-extended = <&mpic 8>;
clocks = <&gateclk 4>;
tx-csum-limit = <9800>;
status = "disabled";
};

2
arch/arm/boot/dts/at91-foxg20.dts
Просмотреть файл

@ -159,7 +159,7 @@
label = "Button";
gpios = <&pioC 4 GPIO_ACTIVE_LOW>;
linux,code = <0x103>;
gpio-key,wakeup;
wakeup-source;
};
};
};

13
arch/arm/boot/dts/at91-kizbox.dts
Просмотреть файл

@ -24,15 +24,6 @@
};
clocks {
#address-cells = <1>;
#size-cells = <1>;
ranges;
main_clock: clock@0 {
compatible = "atmel,osc", "fixed-clock";
clock-frequency = <18432000>;
};
main_xtal {
clock-frequency = <18432000>;
};
@ -94,14 +85,14 @@
label = "PB_RST";
gpios = <&pioB 30 GPIO_ACTIVE_HIGH>;
linux,code = <0x100>;
gpio-key,wakeup;
wakeup-source;
};
user {
label = "PB_USER";
gpios = <&pioB 31 GPIO_ACTIVE_HIGH>;
linux,code = <0x101>;
gpio-key,wakeup;
wakeup-source;
};
};

6
arch/arm/boot/dts/at91-kizbox2.dts
Просмотреть файл

@ -171,21 +171,21 @@
label = "PB_PROG";
gpios = <&pioE 27 GPIO_ACTIVE_LOW>;
linux,code = <0x102>;
gpio-key,wakeup;
wakeup-source;
};
reset {
label = "PB_RST";
gpios = <&pioE 29 GPIO_ACTIVE_LOW>;
linux,code = <0x100>;
gpio-key,wakeup;
wakeup-source;
};
user {
label = "PB_USER";
gpios = <&pioE 31 GPIO_ACTIVE_HIGH>;
linux,code = <0x101>;
gpio-key,wakeup;
wakeup-source;
};
};

4
arch/arm/boot/dts/at91-kizboxmini.dts
Просмотреть файл

@ -98,14 +98,14 @@
label = "PB_PROG";
gpios = <&pioC 17 GPIO_ACTIVE_LOW>;
linux,code = <0x102>;
gpio-key,wakeup;
wakeup-source;
};
reset {
label = "PB_RST";
gpios = <&pioC 16 GPIO_ACTIVE_LOW>;
linux,code = <0x100>;
gpio-key,wakeup;
wakeup-source;
};
};

2
arch/arm/boot/dts/at91-qil_a9260.dts
Просмотреть файл

@ -183,7 +183,7 @@
label = "user_pb";
gpios = <&pioB 10 GPIO_ACTIVE_LOW>;
linux,code = <28>;
gpio-key,wakeup;
wakeup-source;
};
};

115
arch/arm/boot/dts/at91-sama5d2_xplained.dts
Просмотреть файл

@ -45,6 +45,7 @@
/dts-v1/;
#include "sama5d2.dtsi"
#include "sama5d2-pinfunc.h"
#include <dt-bindings/mfd/atmel-flexcom.h>
/ {
model = "Atmel SAMA5D2 Xplained";
@ -59,15 +60,6 @@
};
clocks {
#address-cells = <1>;
#size-cells = <1>;
ranges;
main_clock: clock@0 {
compatible = "atmel,osc", "fixed-clock";
clock-frequency = <12000000>;
};
slow_xtal {
clock-frequency = <32768>;
};
@ -91,6 +83,22 @@
status = "okay";
};
sdmmc0: sdio-host@a0000000 {
bus-width = <8>;
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_sdmmc0_default>;
non-removable;
mmc-ddr-1_8v;
status = "okay";
};
sdmmc1: sdio-host@b0000000 {
bus-width = <4>;
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_sdmmc1_default>;
status = "okay"; /* conflict with qspi0 */
};
apb {
spi0: spi@f8000000 {
pinctrl-names = "default";
@ -181,12 +189,49 @@
};
};
flx0: flexcom@f8034000 {
atmel,flexcom-mode = <ATMEL_FLEXCOM_MODE_USART>;
status = "disabled"; /* conflict with ISC_D2 & ISC_D3 data pins */
uart5: serial@200 {
compatible = "atmel,at91sam9260-usart";
reg = <0x200 0x200>;
interrupts = <19 IRQ_TYPE_LEVEL_HIGH 7>;
clocks = <&flx0_clk>;
clock-names = "usart";
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_flx0_default>;
atmel,fifo-size = <32>;
status = "okay";
};
};
uart3: serial@fc008000 {
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_uart3_default>;
status = "okay";
};
flx4: flexcom@fc018000 {
atmel,flexcom-mode = <ATMEL_FLEXCOM_MODE_TWI>;
status = "okay";
i2c2: i2c@600 {
compatible = "atmel,sama5d2-i2c";
reg = <0x600 0x200>;
interrupts = <23 IRQ_TYPE_LEVEL_HIGH 7>;
dmas = <0>, <0>;
dma-names = "tx", "rx";
#address-cells = <1>;
#size-cells = <0>;
clocks = <&flx4_clk>;
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_flx4_default>;
atmel,fifo-size = <16>;
status = "okay";
};
};
i2c1: i2c@fc028000 {
dmas = <0>, <0>;
pinctrl-names = "default";
@ -201,6 +246,18 @@
};
pinctrl@fc038000 {
pinctrl_flx0_default: flx0_default {
pinmux = <PIN_PB28__FLEXCOM0_IO0>,
<PIN_PB29__FLEXCOM0_IO1>;
bias-disable;
};
pinctrl_flx4_default: flx4_default {
pinmux = <PIN_PD12__FLEXCOM4_IO0>,
<PIN_PD13__FLEXCOM4_IO1>;
bias-disable;
};
pinctrl_i2c0_default: i2c0_default {
pinmux = <PIN_PD21__TWD0>,
<PIN_PD22__TWCK0>;
@ -227,6 +284,46 @@
bias-disable;
};
pinctrl_sdmmc0_default: sdmmc0_default {
cmd_data {
pinmux = <PIN_PA1__SDMMC0_CMD>,
<PIN_PA2__SDMMC0_DAT0>,
<PIN_PA3__SDMMC0_DAT1>,
<PIN_PA4__SDMMC0_DAT2>,
<PIN_PA5__SDMMC0_DAT3>,
<PIN_PA6__SDMMC0_DAT4>,
<PIN_PA7__SDMMC0_DAT5>,
<PIN_PA8__SDMMC0_DAT6>,
<PIN_PA9__SDMMC0_DAT7>;
bias-pull-up;
};
ck_cd_rstn_vddsel {
pinmux = <PIN_PA0__SDMMC0_CK>,
<PIN_PA10__SDMMC0_RSTN>,
<PIN_PA11__SDMMC0_VDDSEL>,
<PIN_PA13__SDMMC0_CD>;
bias-disable;
};
};
pinctrl_sdmmc1_default: sdmmc1_default {
cmd_data {
pinmux = <PIN_PA28__SDMMC1_CMD>,
<PIN_PA18__SDMMC1_DAT0>,
<PIN_PA19__SDMMC1_DAT1>,
<PIN_PA20__SDMMC1_DAT2>,
<PIN_PA21__SDMMC1_DAT3>;
bias-pull-up;
};
conf-ck_cd {
pinmux = <PIN_PA22__SDMMC1_CK>,
<PIN_PA30__SDMMC1_CD>;
bias-disable;
};
};
pinctrl_spi0_default: spi0_default {
pinmux = <PIN_PA14__SPI0_SPCK>,
<PIN_PA15__SPI0_MOSI>,

2
arch/arm/boot/dts/at91-sama5d3_xplained.dts
Просмотреть файл

@ -315,7 +315,7 @@
label = "PB_USER";
gpios = <&pioE 29 GPIO_ACTIVE_LOW>;
linux,code = <0x104>;
gpio-key,wakeup;
wakeup-source;
};
};

12
arch/arm/boot/dts/at91-sama5d4_xplained.dts
Просмотреть файл

@ -50,7 +50,6 @@
compatible = "atmel,sama5d4-xplained", "atmel,sama5d4", "atmel,sama5";
chosen {
bootargs = "ignore_loglevel earlyprintk";
stdout-path = "serial0:115200n8";
};
@ -59,15 +58,6 @@
};
clocks {
#address-cells = <1>;
#size-cells = <1>;
ranges;
main_clock: clock@0 {
compatible = "atmel,osc", "fixed-clock";
clock-frequency = <12000000>;
};
slow_xtal {
clock-frequency = <32768>;
};
@ -235,7 +225,7 @@
label = "pb_user1";
gpios = <&pioE 8 GPIO_ACTIVE_HIGH>;
linux,code = <0x100>;
gpio-key,wakeup;
wakeup-source;
};
};

12
arch/arm/boot/dts/at91-sama5d4ek.dts
Просмотреть файл

@ -50,7 +50,6 @@
compatible = "atmel,sama5d4ek", "atmel,sama5d4", "atmel,sama5";
chosen {
bootargs = "ignore_loglevel earlyprintk";
stdout-path = "serial0:115200n8";
};
@ -59,15 +58,6 @@
};
clocks {
#address-cells = <1>;
#size-cells = <1>;
ranges;
main_clock: clock@0 {
compatible = "atmel,osc", "fixed-clock";
clock-frequency = <12000000>;
};
slow_xtal {
clock-frequency = <32768>;
};
@ -304,7 +294,7 @@
label = "pb_user1";
gpios = <&pioE 13 GPIO_ACTIVE_HIGH>;
linux,code = <0x100>;
gpio-key,wakeup;
wakeup-source;
};
};

9
arch/arm/boot/dts/at91rm9200ek.dts
Просмотреть файл

@ -21,15 +21,6 @@
};
clocks {
#address-cells = <1>;
#size-cells = <1>;
ranges;
main_clock: clock@0 {
compatible = "atmel,osc", "fixed-clock";
clock-frequency = <18432000>;
};
slow_xtal {
clock-frequency = <32768>;
};

19
arch/arm/boot/dts/at91sam9261ek.dts
Просмотреть файл

@ -22,15 +22,6 @@
};
clocks {
#address-cells = <1>;
#size-cells = <1>;
ranges;
main_clock: clock@0 {
compatible = "atmel,osc", "fixed-clock";
clock-frequency = <18432000>;
};
slow_xtal {
clock-frequency = <32768>;
};
@ -149,7 +140,7 @@
ti,debounce-tol = /bits/ 16 <65535>;
ti,debounce-max = /bits/ 16 <1>;
linux,wakeup;
wakeup-source;
};
};
@ -193,28 +184,28 @@
label = "button_0";
gpios = <&pioA 27 GPIO_ACTIVE_LOW>;
linux,code = <256>;
gpio-key,wakeup;
wakeup-source;
};
button_1 {
label = "button_1";
gpios = <&pioA 26 GPIO_ACTIVE_LOW>;
linux,code = <257>;
gpio-key,wakeup;
wakeup-source;
};
button_2 {
label = "button_2";
gpios = <&pioA 25 GPIO_ACTIVE_LOW>;
linux,code = <258>;
gpio-key,wakeup;
wakeup-source;
};
button_3 {
label = "button_3";
gpios = <&pioA 24 GPIO_ACTIVE_LOW>;
linux,code = <259>;
gpio-key,wakeup;
wakeup-source;
};
};
};

13
arch/arm/boot/dts/at91sam9263ek.dts
Просмотреть файл

@ -22,15 +22,6 @@
};
clocks {
#address-cells = <1>;
#size-cells = <1>;
ranges;
main_clock: clock@0 {
compatible = "atmel,osc", "fixed-clock";
clock-frequency = <16367660>;
};
slow_xtal {
clock-frequency = <32768>;
};
@ -213,14 +204,14 @@
label = "left_click";
gpios = <&pioC 5 GPIO_ACTIVE_LOW>;
linux,code = <272>;
gpio-key,wakeup;
wakeup-source;
};
right_click {
label = "right_click";
gpios = <&pioC 4 GPIO_ACTIVE_LOW>;
linux,code = <273>;
gpio-key,wakeup;
wakeup-source;
};
};

13
arch/arm/boot/dts/at91sam9g20ek_common.dtsi
Просмотреть файл

@ -19,15 +19,6 @@
};
clocks {
#address-cells = <1>;
#size-cells = <1>;
ranges;
main_clock: clock@0 {
compatible = "atmel,osc", "fixed-clock";
clock-frequency = <18432000>;
};
slow_xtal {
clock-frequency = <32768>;
};
@ -206,14 +197,14 @@
label = "Button 3";
gpios = <&pioA 30 GPIO_ACTIVE_LOW>;
linux,code = <0x103>;
gpio-key,wakeup;
wakeup-source;
};
btn4 {
label = "Button 4";
gpios = <&pioA 31 GPIO_ACTIVE_LOW>;
linux,code = <0x104>;
gpio-key,wakeup;
wakeup-source;
};
};

13
arch/arm/boot/dts/at91sam9m10g45ek.dts
Просмотреть файл

@ -24,15 +24,6 @@
};
clocks {
#address-cells = <1>;
#size-cells = <1>;
ranges;
main_clock: clock@0 {
compatible = "atmel,osc", "fixed-clock";
clock-frequency = <12000000>;
};
slow_xtal {
clock-frequency = <32768>;
};
@ -323,14 +314,14 @@
label = "left_click";
gpios = <&pioB 6 GPIO_ACTIVE_LOW>;
linux,code = <272>;
gpio-key,wakeup;
wakeup-source;
};
right_click {
label = "right_click";
gpios = <&pioB 7 GPIO_ACTIVE_LOW>;
linux,code = <273>;
gpio-key,wakeup;
wakeup-source;
};
left {

11
arch/arm/boot/dts/at91sam9n12ek.dts
Просмотреть файл

@ -23,15 +23,6 @@
};
clocks {
#address-cells = <1>;
#size-cells = <1>;
ranges;
main_clock: clock@0 {
compatible = "atmel,osc", "fixed-clock";
clock-frequency = <16000000>;
};
slow_xtal {
clock-frequency = <32768>;
};
@ -219,7 +210,7 @@
label = "Enter";
gpios = <&pioB 3 GPIO_ACTIVE_LOW>;
linux,code = <28>;
gpio-key,wakeup;
wakeup-source;
};
};

13
arch/arm/boot/dts/at91sam9rlek.dts
Просмотреть файл

@ -22,15 +22,6 @@
};
clocks {
#address-cells = <1>;
#size-cells = <1>;
ranges;
main_clock: clock {
compatible = "atmel,osc", "fixed-clock";
clock-frequency = <12000000>;
};
slow_xtal {
clock-frequency = <32768>;
};
@ -225,14 +216,14 @@
label = "right_click";
gpios = <&pioB 0 GPIO_ACTIVE_LOW>;
linux,code = <273>;
gpio-key,wakeup;
wakeup-source;
};
left_click {
label = "left_click";
gpios = <&pioB 1 GPIO_ACTIVE_LOW>;
linux,code = <272>;
gpio-key,wakeup;
wakeup-source;
};
};

11
arch/arm/boot/dts/at91sam9x5cm.dtsi
Просмотреть файл

@ -12,17 +12,6 @@
reg = <0x20000000 0x8000000>;
};
clocks {
#address-cells = <1>;
#size-cells = <1>;
ranges;
main_clock: clock@0 {
compatible = "atmel,osc", "fixed-clock";
clock-frequency = <12000000>;
};
};
clocks {
slow_xtal {
clock-frequency = <32768>;

4
arch/arm/boot/dts/dra7.dtsi
Просмотреть файл

@ -1459,8 +1459,8 @@
interrupt-names = "tx", "rx";
dmas = <&sdma_xbar 133>, <&sdma_xbar 132>;
dma-names = "tx", "rx";
clocks = <&mcasp3_ahclkx_mux>;
clock-names = "fck";
clocks = <&mcasp3_aux_gfclk_mux>, <&mcasp3_ahclkx_mux>;
clock-names = "fck", "ahclkx";
status = "disabled";
};

2
arch/arm/boot/dts/k2l-netcp.dtsi
Просмотреть файл

@ -137,7 +137,7 @@ netcp: netcp@26000000 {
/* NetCP address range */
ranges = <0 0x26000000 0x1000000>;
clocks = <&papllclk>, <&clkcpgmac>, <&chipclk12>;
clocks = <&clkosr>, <&papllclk>, <&clkcpgmac>, <&chipclk12>;
dma-coherent;
ti,navigator-dmas = <&dma_gbe 0>,

2
arch/arm/boot/dts/kirkwood-ts219.dtsi
Просмотреть файл

@ -40,7 +40,7 @@
};
poweroff@12100 {
compatible = "qnap,power-off";
reg = <0x12000 0x100>;
reg = <0x12100 0x100>;
clocks = <&gate_clk 7>;
};
spi@10600 {

4
arch/arm/boot/dts/rk3288-veyron-minnie.dts
Просмотреть файл

@ -86,6 +86,10 @@
};
};
&emmc {
/delete-property/mmc-hs200-1_8v;
};
&gpio_keys {
pinctrl-0 = <&pwr_key_l &ap_lid_int_l &volum_down_l &volum_up_l>;

10
arch/arm/boot/dts/rk3288.dtsi
Просмотреть файл

@ -452,8 +452,10 @@
clock-names = "tsadc", "apb_pclk";
resets = <&cru SRST_TSADC>;
reset-names = "tsadc-apb";
pinctrl-names = "default";
pinctrl-0 = <&otp_out>;
pinctrl-names = "init", "default", "sleep";
pinctrl-0 = <&otp_gpio>;
pinctrl-1 = <&otp_out>;
pinctrl-2 = <&otp_gpio>;
#thermal-sensor-cells = <1>;
rockchip,hw-tshut-temp = <95000>;
status = "disabled";
@ -1395,6 +1397,10 @@
};
tsadc {
otp_gpio: otp-gpio {
rockchip,pins = <0 10 RK_FUNC_GPIO &pcfg_pull_none>;
};
otp_out: otp-out {
rockchip,pins = <0 10 RK_FUNC_1 &pcfg_pull_none>;
};

2
arch/arm/boot/dts/sama5d35ek.dts
Просмотреть файл

@ -49,7 +49,7 @@
label = "pb_user1";
gpios = <&pioE 27 GPIO_ACTIVE_HIGH>;
linux,code = <0x100>;
gpio-key,wakeup;
wakeup-source;
};
};
};

2
arch/arm/boot/dts/sama5d4.dtsi
Просмотреть файл

@ -1300,7 +1300,7 @@
};
watchdog@fc068640 {
compatible = "atmel,at91sam9260-wdt";
compatible = "atmel,sama5d4-wdt";
reg = <0xfc068640 0x10>;
clocks = <&clk32k>;
status = "disabled";

2
arch/arm/boot/dts/usb_a9260_common.dtsi
Просмотреть файл

@ -115,7 +115,7 @@
label = "user_pb";
gpios = <&pioB 10 GPIO_ACTIVE_LOW>;
linux,code = <28>;
gpio-key,wakeup;
wakeup-source;
};
};

2
arch/arm/boot/dts/usb_a9263.dts
Просмотреть файл

@ -143,7 +143,7 @@
label = "user_pb";
gpios = <&pioB 10 GPIO_ACTIVE_LOW>;
linux,code = <28>;
gpio-key,wakeup;
wakeup-source;
};
};

8
arch/arm/boot/dts/vfxxx.dtsi
Просмотреть файл

@ -158,7 +158,7 @@
interrupts = <67 IRQ_TYPE_LEVEL_HIGH>;
clocks = <&clks VF610_CLK_DSPI0>;
clock-names = "dspi";
spi-num-chipselects = <5>;
spi-num-chipselects = <6>;
status = "disabled";
};
@ -170,7 +170,7 @@
interrupts = <68 IRQ_TYPE_LEVEL_HIGH>;
clocks = <&clks VF610_CLK_DSPI1>;
clock-names = "dspi";
spi-num-chipselects = <5>;
spi-num-chipselects = <4>;
status = "disabled";
};
@ -461,6 +461,8 @@
clock-names = "adc";
#io-channel-cells = <1>;
status = "disabled";
fsl,adck-max-frequency = <30000000>, <40000000>,
<20000000>;
};
esdhc0: esdhc@400b1000 {
@ -472,8 +474,6 @@
<&clks VF610_CLK_ESDHC0>;
clock-names = "ipg", "ahb", "per";
status = "disabled";
fsl,adck-max-frequency = <30000000>, <40000000>,
<20000000>;
};
esdhc1: esdhc@400b2000 {

1
arch/arm/configs/at91_dt_defconfig
Просмотреть файл

@ -125,7 +125,6 @@ CONFIG_POWER_RESET=y
# CONFIG_HWMON is not set
CONFIG_WATCHDOG=y
CONFIG_AT91SAM9X_WATCHDOG=y
CONFIG_SSB=m
CONFIG_MFD_ATMEL_HLCDC=y
CONFIG_REGULATOR=y
CONFIG_REGULATOR_FIXED_VOLTAGE=y

1
arch/arm/configs/sama5_defconfig
Просмотреть файл

@ -129,7 +129,6 @@ CONFIG_GPIO_SYSFS=y
CONFIG_POWER_SUPPLY=y
CONFIG_POWER_RESET=y
# CONFIG_HWMON is not set
CONFIG_SSB=m
CONFIG_MFD_ATMEL_FLEXCOM=y
CONFIG_REGULATOR=y
CONFIG_REGULATOR_FIXED_VOLTAGE=y

5
arch/arm/include/asm/irq.h
Просмотреть файл

@ -40,6 +40,11 @@ extern void arch_trigger_all_cpu_backtrace(bool);
#define arch_trigger_all_cpu_backtrace(x) arch_trigger_all_cpu_backtrace(x)
#endif
static inline int nr_legacy_irqs(void)
{
return NR_IRQS_LEGACY;
}
#endif
#endif

12
arch/arm/include/asm/kvm_emulate.h
Просмотреть файл

@ -28,6 +28,18 @@
unsigned long *vcpu_reg(struct kvm_vcpu *vcpu, u8 reg_num);
unsigned long *vcpu_spsr(struct kvm_vcpu *vcpu);
static inline unsigned long vcpu_get_reg(struct kvm_vcpu *vcpu,
u8 reg_num)
{
return *vcpu_reg(vcpu, reg_num);
}
static inline void vcpu_set_reg(struct kvm_vcpu *vcpu, u8 reg_num,
unsigned long val)
{
*vcpu_reg(vcpu, reg_num) = val;
}
bool kvm_condition_valid(struct kvm_vcpu *vcpu);
void kvm_skip_instr(struct kvm_vcpu *vcpu, bool is_wide_instr);
void kvm_inject_undefined(struct kvm_vcpu *vcpu);

1
arch/arm/include/uapi/asm/unistd.h
Просмотреть файл

@ -416,6 +416,7 @@
#define __NR_execveat (__NR_SYSCALL_BASE+387)
#define __NR_userfaultfd (__NR_SYSCALL_BASE+388)
#define __NR_membarrier (__NR_SYSCALL_BASE+389)
#define __NR_mlock2 (__NR_SYSCALL_BASE+390)
/*
* The following SWIs are ARM private.

19
arch/arm/kernel/bios32.c
Просмотреть файл

@ -17,11 +17,6 @@
#include <asm/mach/pci.h>
static int debug_pci;
static resource_size_t (*align_resource)(struct pci_dev *dev,
const struct resource *res,
resource_size_t start,
resource_size_t size,
resource_size_t align) = NULL;
/*
* We can't use pci_get_device() here since we are
@ -461,7 +456,6 @@ static void pcibios_init_hw(struct device *parent, struct hw_pci *hw,
sys->busnr = busnr;
sys->swizzle = hw->swizzle;
sys->map_irq = hw->map_irq;
align_resource = hw->align_resource;
INIT_LIST_HEAD(&sys->resources);
if (hw->private_data)
@ -470,6 +464,8 @@ static void pcibios_init_hw(struct device *parent, struct hw_pci *hw,
ret = hw->setup(nr, sys);
if (ret > 0) {
struct pci_host_bridge *host_bridge;
ret = pcibios_init_resources(nr, sys);
if (ret) {
kfree(sys);
@ -491,6 +487,9 @@ static void pcibios_init_hw(struct device *parent, struct hw_pci *hw,
busnr = sys->bus->busn_res.end + 1;
list_add(&sys->node, head);
host_bridge = pci_find_host_bridge(sys->bus);
host_bridge->align_resource = hw->align_resource;
} else {
kfree(sys);
if (ret < 0)
@ -578,14 +577,18 @@ resource_size_t pcibios_align_resource(void *data, const struct resource *res,
{
struct pci_dev *dev = data;
resource_size_t start = res->start;
struct pci_host_bridge *host_bridge;
if (res->flags & IORESOURCE_IO && start & 0x300)
start = (start + 0x3ff) & ~0x3ff;
start = (start + align - 1) & ~(align - 1);
if (align_resource)
return align_resource(dev, res, start, size, align);
host_bridge = pci_find_host_bridge(dev->bus);
if (host_bridge->align_resource)
return host_bridge->align_resource(dev, res,
start, size, align);
return start;
}

1
arch/arm/kernel/calls.S
Просмотреть файл

@ -399,6 +399,7 @@
CALL(sys_execveat)
CALL(sys_userfaultfd)
CALL(sys_membarrier)
CALL(sys_mlock2)
#ifndef syscalls_counted
.equ syscalls_padding, ((NR_syscalls + 3) & ~3) - NR_syscalls
#define syscalls_counted

7
arch/arm/kvm/arm.c
Просмотреть файл

@ -563,18 +563,13 @@ int kvm_arch_vcpu_ioctl_run(struct kvm_vcpu *vcpu, struct kvm_run *run)
if (vcpu->arch.power_off || vcpu->arch.pause)
vcpu_sleep(vcpu);
/*
* Disarming the background timer must be done in a
* preemptible context, as this call may sleep.
*/
kvm_timer_flush_hwstate(vcpu);
/*
* Preparing the interrupts to be injected also
* involves poking the GIC, which must be done in a
* non-preemptible context.
*/
preempt_disable();
kvm_timer_flush_hwstate(vcpu);
kvm_vgic_flush_hwstate(vcpu);
local_irq_disable();

5
arch/arm/kvm/mmio.c
Просмотреть файл

@ -115,7 +115,7 @@ int kvm_handle_mmio_return(struct kvm_vcpu *vcpu, struct kvm_run *run)
trace_kvm_mmio(KVM_TRACE_MMIO_READ, len, run->mmio.phys_addr,
data);
data = vcpu_data_host_to_guest(vcpu, data, len);
*vcpu_reg(vcpu, vcpu->arch.mmio_decode.rt) = data;
vcpu_set_reg(vcpu, vcpu->arch.mmio_decode.rt, data);
}
return 0;
@ -186,7 +186,8 @@ int io_mem_abort(struct kvm_vcpu *vcpu, struct kvm_run *run,
rt = vcpu->arch.mmio_decode.rt;
if (is_write) {
data = vcpu_data_guest_to_host(vcpu, *vcpu_reg(vcpu, rt), len);
data = vcpu_data_guest_to_host(vcpu, vcpu_get_reg(vcpu, rt),
len);
trace_kvm_mmio(KVM_TRACE_MMIO_WRITE, len, fault_ipa, data);
mmio_write_buf(data_buf, len, data);

15
arch/arm/kvm/mmu.c
Просмотреть файл

@ -98,6 +98,11 @@ static void kvm_flush_dcache_pud(pud_t pud)
__kvm_flush_dcache_pud(pud);
}
static bool kvm_is_device_pfn(unsigned long pfn)
{
return !pfn_valid(pfn);
}
/**
* stage2_dissolve_pmd() - clear and flush huge PMD entry
* @kvm: pointer to kvm structure.
@ -213,7 +218,7 @@ static void unmap_ptes(struct kvm *kvm, pmd_t *pmd,
kvm_tlb_flush_vmid_ipa(kvm, addr);
/* No need to invalidate the cache for device mappings */
if ((pte_val(old_pte) & PAGE_S2_DEVICE) != PAGE_S2_DEVICE)
if (!kvm_is_device_pfn(pte_pfn(old_pte)))
kvm_flush_dcache_pte(old_pte);
put_page(virt_to_page(pte));
@ -305,8 +310,7 @@ static void stage2_flush_ptes(struct kvm *kvm, pmd_t *pmd,
pte = pte_offset_kernel(pmd, addr);
do {
if (!pte_none(*pte) &&
(pte_val(*pte) & PAGE_S2_DEVICE) != PAGE_S2_DEVICE)
if (!pte_none(*pte) && !kvm_is_device_pfn(pte_pfn(*pte)))
kvm_flush_dcache_pte(*pte);
} while (pte++, addr += PAGE_SIZE, addr != end);
}
@ -1037,11 +1041,6 @@ static bool kvm_is_write_fault(struct kvm_vcpu *vcpu)
return kvm_vcpu_dabt_iswrite(vcpu);
}
static bool kvm_is_device_pfn(unsigned long pfn)
{
return !pfn_valid(pfn);
}
/**
* stage2_wp_ptes - write protect PMD range
* @pmd: pointer to pmd entry

20
arch/arm/kvm/psci.c
Просмотреть файл

@ -75,7 +75,7 @@ static unsigned long kvm_psci_vcpu_on(struct kvm_vcpu *source_vcpu)
unsigned long context_id;
phys_addr_t target_pc;
cpu_id = *vcpu_reg(source_vcpu, 1) & MPIDR_HWID_BITMASK;
cpu_id = vcpu_get_reg(source_vcpu, 1) & MPIDR_HWID_BITMASK;
if (vcpu_mode_is_32bit(source_vcpu))
cpu_id &= ~((u32) 0);
@ -94,8 +94,8 @@ static unsigned long kvm_psci_vcpu_on(struct kvm_vcpu *source_vcpu)
return PSCI_RET_INVALID_PARAMS;
}
target_pc = *vcpu_reg(source_vcpu, 2);
context_id = *vcpu_reg(source_vcpu, 3);
target_pc = vcpu_get_reg(source_vcpu, 2);
context_id = vcpu_get_reg(source_vcpu, 3);
kvm_reset_vcpu(vcpu);
@ -114,7 +114,7 @@ static unsigned long kvm_psci_vcpu_on(struct kvm_vcpu *source_vcpu)
* NOTE: We always update r0 (or x0) because for PSCI v0.1
* the general puspose registers are undefined upon CPU_ON.
*/
*vcpu_reg(vcpu, 0) = context_id;
vcpu_set_reg(vcpu, 0, context_id);
vcpu->arch.power_off = false;
smp_mb(); /* Make sure the above is visible */
@ -134,8 +134,8 @@ static unsigned long kvm_psci_vcpu_affinity_info(struct kvm_vcpu *vcpu)
struct kvm *kvm = vcpu->kvm;
struct kvm_vcpu *tmp;
target_affinity = *vcpu_reg(vcpu, 1);
lowest_affinity_level = *vcpu_reg(vcpu, 2);
target_affinity = vcpu_get_reg(vcpu, 1);
lowest_affinity_level = vcpu_get_reg(vcpu, 2);
/* Determine target affinity mask */
target_affinity_mask = psci_affinity_mask(lowest_affinity_level);
@ -209,7 +209,7 @@ int kvm_psci_version(struct kvm_vcpu *vcpu)
static int kvm_psci_0_2_call(struct kvm_vcpu *vcpu)
{
int ret = 1;
unsigned long psci_fn = *vcpu_reg(vcpu, 0) & ~((u32) 0);
unsigned long psci_fn = vcpu_get_reg(vcpu, 0) & ~((u32) 0);
unsigned long val;
switch (psci_fn) {
@ -273,13 +273,13 @@ static int kvm_psci_0_2_call(struct kvm_vcpu *vcpu)
break;
}
*vcpu_reg(vcpu, 0) = val;
vcpu_set_reg(vcpu, 0, val);
return ret;
}
static int kvm_psci_0_1_call(struct kvm_vcpu *vcpu)
{
unsigned long psci_fn = *vcpu_reg(vcpu, 0) & ~((u32) 0);
unsigned long psci_fn = vcpu_get_reg(vcpu, 0) & ~((u32) 0);
unsigned long val;
switch (psci_fn) {
@ -295,7 +295,7 @@ static int kvm_psci_0_1_call(struct kvm_vcpu *vcpu)
break;
}
*vcpu_reg(vcpu, 0) = val;
vcpu_set_reg(vcpu, 0, val);
return 1;
}

4
arch/arm/mach-dove/include/mach/entry-macro.S
Просмотреть файл

@ -18,13 +18,13 @@
@ check low interrupts
ldr \irqstat, [\base, #IRQ_CAUSE_LOW_OFF]
ldr \tmp, [\base, #IRQ_MASK_LOW_OFF]
mov \irqnr, #31
mov \irqnr, #32
ands \irqstat, \irqstat, \tmp
@ if no low interrupts set, check high interrupts
ldreq \irqstat, [\base, #IRQ_CAUSE_HIGH_OFF]
ldreq \tmp, [\base, #IRQ_MASK_HIGH_OFF]
moveq \irqnr, #63
moveq \irqnr, #64
andeqs \irqstat, \irqstat, \tmp
@ find first active interrupt source

1
arch/arm/mach-imx/gpc.c
Просмотреть файл

@ -177,6 +177,7 @@ static struct irq_chip imx_gpc_chip = {
.irq_unmask = imx_gpc_irq_unmask,
.irq_retrigger = irq_chip_retrigger_hierarchy,
.irq_set_wake = imx_gpc_irq_set_wake,
.irq_set_type = irq_chip_set_type_parent,
#ifdef CONFIG_SMP
.irq_set_affinity = irq_chip_set_affinity_parent,
#endif

6
arch/arm/mach-omap2/omap-smp.c
Просмотреть файл

@ -143,9 +143,9 @@ static int omap4_boot_secondary(unsigned int cpu, struct task_struct *idle)
* Ensure that CPU power state is set to ON to avoid CPU
* powerdomain transition on wfi
*/
clkdm_wakeup(cpu1_clkdm);
omap_set_pwrdm_state(cpu1_pwrdm, PWRDM_POWER_ON);
clkdm_allow_idle(cpu1_clkdm);
clkdm_wakeup_nolock(cpu1_clkdm);
pwrdm_set_next_pwrst(cpu1_pwrdm, PWRDM_POWER_ON);
clkdm_allow_idle_nolock(cpu1_clkdm);
if (IS_PM44XX_ERRATUM(PM_OMAP4_ROM_SMP_BOOT_ERRATUM_GICD)) {
while (gic_dist_disabled()) {

66
arch/arm/mach-omap2/omap_hwmod.c
Просмотреть файл

@ -890,6 +890,36 @@ static int _init_opt_clks(struct omap_hwmod *oh)
return ret;
}
static void _enable_optional_clocks(struct omap_hwmod *oh)
{
struct omap_hwmod_opt_clk *oc;
int i;
pr_debug("omap_hwmod: %s: enabling optional clocks\n", oh->name);
for (i = oh->opt_clks_cnt, oc = oh->opt_clks; i > 0; i--, oc++)
if (oc->_clk) {
pr_debug("omap_hwmod: enable %s:%s\n", oc->role,
__clk_get_name(oc->_clk));
clk_enable(oc->_clk);
}
}
static void _disable_optional_clocks(struct omap_hwmod *oh)
{
struct omap_hwmod_opt_clk *oc;
int i;
pr_debug("omap_hwmod: %s: disabling optional clocks\n", oh->name);
for (i = oh->opt_clks_cnt, oc = oh->opt_clks; i > 0; i--, oc++)
if (oc->_clk) {
pr_debug("omap_hwmod: disable %s:%s\n", oc->role,
__clk_get_name(oc->_clk));
clk_disable(oc->_clk);
}
}
/**
* _enable_clocks - enable hwmod main clock and interface clocks
* @oh: struct omap_hwmod *
@ -917,6 +947,9 @@ static int _enable_clocks(struct omap_hwmod *oh)
clk_enable(os->_clk);
}
if (oh->flags & HWMOD_OPT_CLKS_NEEDED)
_enable_optional_clocks(oh);
/* The opt clocks are controlled by the device driver. */
return 0;
@ -948,41 +981,14 @@ static int _disable_clocks(struct omap_hwmod *oh)
clk_disable(os->_clk);
}
if (oh->flags & HWMOD_OPT_CLKS_NEEDED)
_disable_optional_clocks(oh);
/* The opt clocks are controlled by the device driver. */
return 0;
}
static void _enable_optional_clocks(struct omap_hwmod *oh)
{
struct omap_hwmod_opt_clk *oc;
int i;
pr_debug("omap_hwmod: %s: enabling optional clocks\n", oh->name);
for (i = oh->opt_clks_cnt, oc = oh->opt_clks; i > 0; i--, oc++)
if (oc->_clk) {
pr_debug("omap_hwmod: enable %s:%s\n", oc->role,
__clk_get_name(oc->_clk));
clk_enable(oc->_clk);
}
}
static void _disable_optional_clocks(struct omap_hwmod *oh)
{
struct omap_hwmod_opt_clk *oc;
int i;
pr_debug("omap_hwmod: %s: disabling optional clocks\n", oh->name);
for (i = oh->opt_clks_cnt, oc = oh->opt_clks; i > 0; i--, oc++)
if (oc->_clk) {
pr_debug("omap_hwmod: disable %s:%s\n", oc->role,
__clk_get_name(oc->_clk));
clk_disable(oc->_clk);
}
}
/**
* _omap4_enable_module - enable CLKCTRL modulemode on OMAP4
* @oh: struct omap_hwmod *

3
arch/arm/mach-omap2/omap_hwmod.h
Просмотреть файл

@ -523,6 +523,8 @@ struct omap_hwmod_omap4_prcm {
* HWMOD_RECONFIG_IO_CHAIN: omap_hwmod code needs to reconfigure wake-up
* events by calling _reconfigure_io_chain() when a device is enabled
* or idled.
* HWMOD_OPT_CLKS_NEEDED: The optional clocks are needed for the module to
* operate and they need to be handled at the same time as the main_clk.
*/
#define HWMOD_SWSUP_SIDLE (1 << 0)
#define HWMOD_SWSUP_MSTANDBY (1 << 1)
@ -538,6 +540,7 @@ struct omap_hwmod_omap4_prcm {
#define HWMOD_FORCE_MSTANDBY (1 << 11)
#define HWMOD_SWSUP_SIDLE_ACT (1 << 12)
#define HWMOD_RECONFIG_IO_CHAIN (1 << 13)
#define HWMOD_OPT_CLKS_NEEDED (1 << 14)
/*
* omap_hwmod._int_flags definitions

56
arch/arm/mach-omap2/omap_hwmod_7xx_data.c
Просмотреть файл

@ -1297,6 +1297,44 @@ static struct omap_hwmod dra7xx_mcspi4_hwmod = {
.dev_attr = &mcspi4_dev_attr,
};
/*
* 'mcasp' class
*
*/
static struct omap_hwmod_class_sysconfig dra7xx_mcasp_sysc = {
.sysc_offs = 0x0004,
.sysc_flags = SYSC_HAS_SIDLEMODE,
.idlemodes = (SIDLE_FORCE | SIDLE_NO | SIDLE_SMART),
.sysc_fields = &omap_hwmod_sysc_type3,
};
static struct omap_hwmod_class dra7xx_mcasp_hwmod_class = {
.name = "mcasp",
.sysc = &dra7xx_mcasp_sysc,
};
/* mcasp3 */
static struct omap_hwmod_opt_clk mcasp3_opt_clks[] = {
{ .role = "ahclkx", .clk = "mcasp3_ahclkx_mux" },
};
static struct omap_hwmod dra7xx_mcasp3_hwmod = {
.name = "mcasp3",
.class = &dra7xx_mcasp_hwmod_class,
.clkdm_name = "l4per2_clkdm",
.main_clk = "mcasp3_aux_gfclk_mux",
.flags = HWMOD_OPT_CLKS_NEEDED,
.prcm = {
.omap4 = {
.clkctrl_offs = DRA7XX_CM_L4PER2_MCASP3_CLKCTRL_OFFSET,
.context_offs = DRA7XX_RM_L4PER2_MCASP3_CONTEXT_OFFSET,
.modulemode = MODULEMODE_SWCTRL,
},
},
.opt_clks = mcasp3_opt_clks,
.opt_clks_cnt = ARRAY_SIZE(mcasp3_opt_clks),
};
/*
* 'mmc' class
*
@ -2566,6 +2604,22 @@ static struct omap_hwmod_ocp_if dra7xx_l3_main_1__hdmi = {
.user = OCP_USER_MPU | OCP_USER_SDMA,
};
/* l4_per2 -> mcasp3 */
static struct omap_hwmod_ocp_if dra7xx_l4_per2__mcasp3 = {
.master = &dra7xx_l4_per2_hwmod,
.slave = &dra7xx_mcasp3_hwmod,
.clk = "l4_root_clk_div",
.user = OCP_USER_MPU | OCP_USER_SDMA,
};
/* l3_main_1 -> mcasp3 */
static struct omap_hwmod_ocp_if dra7xx_l3_main_1__mcasp3 = {
.master = &dra7xx_l3_main_1_hwmod,
.slave = &dra7xx_mcasp3_hwmod,
.clk = "l3_iclk_div",
.user = OCP_USER_MPU | OCP_USER_SDMA,
};
/* l4_per1 -> elm */
static struct omap_hwmod_ocp_if dra7xx_l4_per1__elm = {
.master = &dra7xx_l4_per1_hwmod,
@ -3308,6 +3362,8 @@ static struct omap_hwmod_ocp_if *dra7xx_hwmod_ocp_ifs[] __initdata = {
&dra7xx_l4_wkup__dcan1,
&dra7xx_l4_per2__dcan2,
&dra7xx_l4_per2__cpgmac0,
&dra7xx_l4_per2__mcasp3,
&dra7xx_l3_main_1__mcasp3,
&dra7xx_gmac__mdio,
&dra7xx_l4_cfg__dma_system,
&dra7xx_l3_main_1__dss,

3
arch/arm/mach-omap2/omap_hwmod_81xx_data.c
Просмотреть файл

@ -144,6 +144,7 @@ static struct omap_hwmod dm81xx_l4_ls_hwmod = {
.name = "l4_ls",
.clkdm_name = "alwon_l3s_clkdm",
.class = &l4_hwmod_class,
.flags = HWMOD_NO_IDLEST,
};
/*
@ -155,6 +156,7 @@ static struct omap_hwmod dm81xx_l4_hs_hwmod = {
.name = "l4_hs",
.clkdm_name = "alwon_l3_med_clkdm",
.class = &l4_hwmod_class,
.flags = HWMOD_NO_IDLEST,
};
/* L3 slow -> L4 ls peripheral interface running at 125MHz */
@ -850,6 +852,7 @@ static struct omap_hwmod dm816x_emac0_hwmod = {
.name = "emac0",
.clkdm_name = "alwon_ethernet_clkdm",
.class = &dm816x_emac_hwmod_class,
.flags = HWMOD_NO_IDLEST,
};
static struct omap_hwmod_ocp_if dm81xx_l4_hs__emac0 = {

29
arch/arm/mach-omap2/pdata-quirks.c
Просмотреть файл

@ -24,9 +24,6 @@
#include <linux/platform_data/iommu-omap.h>
#include <linux/platform_data/wkup_m3.h>
#include <asm/siginfo.h>
#include <asm/signal.h>
#include "common.h"
#include "common-board-devices.h"
#include "dss-common.h"
@ -385,29 +382,6 @@ static void __init omap3_pandora_legacy_init(void)
}
#endif /* CONFIG_ARCH_OMAP3 */
#ifdef CONFIG_SOC_TI81XX
static int fault_fixed_up;
static int t410_abort_handler(unsigned long addr, unsigned int fsr,
struct pt_regs *regs)
{
if ((fsr == 0x406 || fsr == 0xc06) && !fault_fixed_up) {
pr_warn("External imprecise Data abort at addr=%#lx, fsr=%#x ignored.\n",
addr, fsr);
fault_fixed_up = 1;
return 0;
}
return 1;
}
static void __init t410_abort_init(void)
{
hook_fault_code(16 + 6, t410_abort_handler, SIGBUS, BUS_OBJERR,
"imprecise external abort");
}
#endif
#if defined(CONFIG_ARCH_OMAP4) || defined(CONFIG_SOC_OMAP5)
static struct iommu_platform_data omap4_iommu_pdata = {
.reset_name = "mmu_cache",
@ -536,9 +510,6 @@ static struct pdata_init pdata_quirks[] __initdata = {
{ "openpandora,omap3-pandora-600mhz", omap3_pandora_legacy_init, },
{ "openpandora,omap3-pandora-1ghz", omap3_pandora_legacy_init, },
#endif
#ifdef CONFIG_SOC_TI81XX
{ "hp,t410", t410_abort_init, },
#endif
#ifdef CONFIG_SOC_OMAP5
{ "ti,omap5-uevm", omap5_uevm_legacy_init, },
#endif

4
arch/arm/mach-omap2/pm34xx.c
Просмотреть файл

@ -301,11 +301,11 @@ static void omap3_pm_idle(void)
if (omap_irq_pending())
return;
trace_cpu_idle(1, smp_processor_id());
trace_cpu_idle_rcuidle(1, smp_processor_id());
omap_sram_idle();
trace_cpu_idle(PWR_EVENT_EXIT, smp_processor_id());
trace_cpu_idle_rcuidle(PWR_EVENT_EXIT, smp_processor_id());
}
#ifdef CONFIG_SUSPEND

2
arch/arm/mach-orion5x/include/mach/entry-macro.S
Просмотреть файл

@ -21,5 +21,5 @@
@ find cause bits that are unmasked
ands \irqstat, \irqstat, \tmp @ clear Z flag if any
clzne \irqnr, \irqstat @ calc irqnr
rsbne \irqnr, \irqnr, #31
rsbne \irqnr, \irqnr, #32
.endm

2
arch/arm/mach-pxa/palm27x.c
Просмотреть файл

@ -344,7 +344,7 @@ void __init palm27x_pwm_init(int bl, int lcd)
{
palm_bl_power = bl;
palm_lcd_power = lcd;
pwm_add_lookup(palm27x_pwm_lookup, ARRAY_SIZE(palm27x_pwm_lookup));
pwm_add_table(palm27x_pwm_lookup, ARRAY_SIZE(palm27x_pwm_lookup));
platform_device_register(&palm27x_backlight);
}
#endif

2
arch/arm/mach-pxa/palmtc.c
Просмотреть файл

@ -169,7 +169,7 @@ static inline void palmtc_keys_init(void) {}
#if defined(CONFIG_BACKLIGHT_PWM) || defined(CONFIG_BACKLIGHT_PWM_MODULE)
static struct pwm_lookup palmtc_pwm_lookup[] = {
PWM_LOOKUP("pxa25x-pwm.1", 0, "pwm-backlight.0", NULL, PALMTC_PERIOD_NS,
PWM_PERIOD_NORMAL),
PWM_POLARITY_NORMAL),
};
static struct platform_pwm_backlight_data palmtc_backlight_data = {

2
arch/arm/mach-shmobile/setup-r8a7793.c
Просмотреть файл

@ -19,7 +19,7 @@
#include "common.h"
#include "rcar-gen2.h"
static const char *r8a7793_boards_compat_dt[] __initconst = {
static const char * const r8a7793_boards_compat_dt[] __initconst = {
"renesas,r8a7793",
NULL,
};

2
arch/arm/mach-zx/Kconfig
Просмотреть файл

@ -13,7 +13,7 @@ config SOC_ZX296702
select ARM_GLOBAL_TIMER
select HAVE_ARM_SCU if SMP
select HAVE_ARM_TWD if SMP
select PM_GENERIC_DOMAINS
select PM_GENERIC_DOMAINS if PM
help
Support for ZTE ZX296702 SoC which is a dual core CortexA9MP
endif

23
arch/arm64/Kconfig
Просмотреть файл

@ -49,7 +49,7 @@ config ARM64
select HAVE_ARCH_AUDITSYSCALL
select HAVE_ARCH_BITREVERSE
select HAVE_ARCH_JUMP_LABEL
select HAVE_ARCH_KASAN if SPARSEMEM_VMEMMAP
select HAVE_ARCH_KASAN if SPARSEMEM_VMEMMAP && !(ARM64_16K_PAGES && ARM64_VA_BITS_48)
select HAVE_ARCH_KGDB
select HAVE_ARCH_SECCOMP_FILTER
select HAVE_ARCH_TRACEHOOK
@ -316,6 +316,27 @@ config ARM64_ERRATUM_832075
If unsure, say Y.
config ARM64_ERRATUM_834220
bool "Cortex-A57: 834220: Stage 2 translation fault might be incorrectly reported in presence of a Stage 1 fault"
depends on KVM
default y
help
This option adds an alternative code sequence to work around ARM
erratum 834220 on Cortex-A57 parts up to r1p2.
Affected Cortex-A57 parts might report a Stage 2 translation
fault as the result of a Stage 1 fault for load crossing a
page boundary when there is a permission or device memory
alignment fault at Stage 1 and a translation fault at Stage 2.
The workaround is to verify that the Stage 1 translation
doesn't generate a fault before handling the Stage 2 fault.
Please note that this does not necessarily enable the workaround,
as it depends on the alternative framework, which will only patch
the kernel if an affected CPU is detected.
If unsure, say Y.
config ARM64_ERRATUM_845719
bool "Cortex-A53: 845719: a load might read incorrect data"
depends on COMPAT

25
arch/arm64/include/asm/cpufeature.h
Просмотреть файл

@ -29,8 +29,9 @@
#define ARM64_HAS_PAN 4
#define ARM64_HAS_LSE_ATOMICS 5
#define ARM64_WORKAROUND_CAVIUM_23154 6
#define ARM64_WORKAROUND_834220 7
#define ARM64_NCAPS 7
#define ARM64_NCAPS 8
#ifndef __ASSEMBLY__
@ -46,8 +47,12 @@ enum ftr_type {
#define FTR_STRICT true /* SANITY check strict matching required */
#define FTR_NONSTRICT false /* SANITY check ignored */
#define FTR_SIGNED true /* Value should be treated as signed */
#define FTR_UNSIGNED false /* Value should be treated as unsigned */
struct arm64_ftr_bits {
bool strict; /* CPU Sanity check: strict matching required ? */
bool sign; /* Value is signed ? */
bool strict; /* CPU Sanity check: strict matching required ? */
enum ftr_type type;
u8 shift;
u8 width;
@ -123,6 +128,18 @@ cpuid_feature_extract_field(u64 features, int field)
return cpuid_feature_extract_field_width(features, field, 4);
}
static inline unsigned int __attribute_const__
cpuid_feature_extract_unsigned_field_width(u64 features, int field, int width)
{
return (u64)(features << (64 - width - field)) >> (64 - width);
}
static inline unsigned int __attribute_const__
cpuid_feature_extract_unsigned_field(u64 features, int field)
{
return cpuid_feature_extract_unsigned_field_width(features, field, 4);
}
static inline u64 arm64_ftr_mask(struct arm64_ftr_bits *ftrp)
{
return (u64)GENMASK(ftrp->shift + ftrp->width - 1, ftrp->shift);
@ -130,7 +147,9 @@ static inline u64 arm64_ftr_mask(struct arm64_ftr_bits *ftrp)
static inline s64 arm64_ftr_value(struct arm64_ftr_bits *ftrp, u64 val)
{
return cpuid_feature_extract_field_width(val, ftrp->shift, ftrp->width);
return ftrp->sign ?
cpuid_feature_extract_field_width(val, ftrp->shift, ftrp->width) :
cpuid_feature_extract_unsigned_field_width(val, ftrp->shift, ftrp->width);
}
static inline bool id_aa64mmfr0_mixed_endian_el0(u64 mmfr0)

6
arch/arm64/include/asm/hw_breakpoint.h
Просмотреть файл

@ -138,16 +138,18 @@ extern struct pmu perf_ops_bp;
/* Determine number of BRP registers available. */
static inline int get_num_brps(void)
{
u64 dfr0 = read_system_reg(SYS_ID_AA64DFR0_EL1);
return 1 +
cpuid_feature_extract_field(read_system_reg(SYS_ID_AA64DFR0_EL1),
cpuid_feature_extract_unsigned_field(dfr0,
ID_AA64DFR0_BRPS_SHIFT);
}
/* Determine number of WRP registers available. */
static inline int get_num_wrps(void)
{
u64 dfr0 = read_system_reg(SYS_ID_AA64DFR0_EL1);
return 1 +
cpuid_feature_extract_field(read_system_reg(SYS_ID_AA64DFR0_EL1),
cpuid_feature_extract_unsigned_field(dfr0,
ID_AA64DFR0_WRPS_SHIFT);
}

5
arch/arm64/include/asm/irq.h
Просмотреть файл

@ -7,4 +7,9 @@ struct pt_regs;
extern void set_handle_irq(void (*handle_irq)(struct pt_regs *));
static inline int nr_legacy_irqs(void)
{
return 0;
}
#endif

18
arch/arm64/include/asm/kvm_emulate.h
Просмотреть файл

@ -99,12 +99,22 @@ static inline void vcpu_set_thumb(struct kvm_vcpu *vcpu)
*vcpu_cpsr(vcpu) |= COMPAT_PSR_T_BIT;
}
static inline unsigned long *vcpu_reg(const struct kvm_vcpu *vcpu, u8 reg_num)
/*
* vcpu_get_reg and vcpu_set_reg should always be passed a register number
* coming from a read of ESR_EL2. Otherwise, it may give the wrong result on
* AArch32 with banked registers.
*/
static inline unsigned long vcpu_get_reg(const struct kvm_vcpu *vcpu,
u8 reg_num)
{
if (vcpu_mode_is_32bit(vcpu))
return vcpu_reg32(vcpu, reg_num);
return (reg_num == 31) ? 0 : vcpu_gp_regs(vcpu)->regs.regs[reg_num];
}
return (unsigned long *)&vcpu_gp_regs(vcpu)->regs.regs[reg_num];
static inline void vcpu_set_reg(struct kvm_vcpu *vcpu, u8 reg_num,
unsigned long val)
{
if (reg_num != 31)
vcpu_gp_regs(vcpu)->regs.regs[reg_num] = val;
}
/* Get vcpu SPSR for current mode */

9
arch/arm64/kernel/cpu_errata.c
Просмотреть файл

@ -75,6 +75,15 @@ const struct arm64_cpu_capabilities arm64_errata[] = {
(1 << MIDR_VARIANT_SHIFT) | 2),
},
#endif
#ifdef CONFIG_ARM64_ERRATUM_834220
{
/* Cortex-A57 r0p0 - r1p2 */
.desc = "ARM erratum 834220",
.capability = ARM64_WORKAROUND_834220,
MIDR_RANGE(MIDR_CORTEX_A57, 0x00,
(1 << MIDR_VARIANT_SHIFT) | 2),
},
#endif
#ifdef CONFIG_ARM64_ERRATUM_845719
{
/* Cortex-A53 r0p[01234] */

37
arch/arm64/kernel/cpufeature.c
Просмотреть файл

@ -44,8 +44,9 @@ unsigned int compat_elf_hwcap2 __read_mostly;
DECLARE_BITMAP(cpu_hwcaps, ARM64_NCAPS);
#define ARM64_FTR_BITS(STRICT, TYPE, SHIFT, WIDTH, SAFE_VAL) \
#define __ARM64_FTR_BITS(SIGNED, STRICT, TYPE, SHIFT, WIDTH, SAFE_VAL) \
{ \
.sign = SIGNED, \
.strict = STRICT, \
.type = TYPE, \
.shift = SHIFT, \
@ -53,6 +54,14 @@ DECLARE_BITMAP(cpu_hwcaps, ARM64_NCAPS);
.safe_val = SAFE_VAL, \
}
/* Define a feature with signed values */
#define ARM64_FTR_BITS(STRICT, TYPE, SHIFT, WIDTH, SAFE_VAL) \
__ARM64_FTR_BITS(FTR_SIGNED, STRICT, TYPE, SHIFT, WIDTH, SAFE_VAL)
/* Define a feature with unsigned value */
#define U_ARM64_FTR_BITS(STRICT, TYPE, SHIFT, WIDTH, SAFE_VAL) \
__ARM64_FTR_BITS(FTR_UNSIGNED, STRICT, TYPE, SHIFT, WIDTH, SAFE_VAL)
#define ARM64_FTR_END \
{ \
.width = 0, \
@ -99,7 +108,7 @@ static struct arm64_ftr_bits ftr_id_aa64mmfr0[] = {
* Differing PARange is fine as long as all peripherals and memory are mapped
* within the minimum PARange of all CPUs
*/
ARM64_FTR_BITS(FTR_NONSTRICT, FTR_LOWER_SAFE, ID_AA64MMFR0_PARANGE_SHIFT, 4, 0),
U_ARM64_FTR_BITS(FTR_NONSTRICT, FTR_LOWER_SAFE, ID_AA64MMFR0_PARANGE_SHIFT, 4, 0),
ARM64_FTR_END,
};
@ -115,18 +124,18 @@ static struct arm64_ftr_bits ftr_id_aa64mmfr1[] = {
};
static struct arm64_ftr_bits ftr_ctr[] = {
ARM64_FTR_BITS(FTR_STRICT, FTR_EXACT, 31, 1, 1), /* RAO */
U_ARM64_FTR_BITS(FTR_STRICT, FTR_EXACT, 31, 1, 1), /* RAO */
ARM64_FTR_BITS(FTR_STRICT, FTR_EXACT, 28, 3, 0),
ARM64_FTR_BITS(FTR_STRICT, FTR_HIGHER_SAFE, 24, 4, 0), /* CWG */
ARM64_FTR_BITS(FTR_STRICT, FTR_LOWER_SAFE, 20, 4, 0), /* ERG */
ARM64_FTR_BITS(FTR_STRICT, FTR_LOWER_SAFE, 16, 4, 1), /* DminLine */
U_ARM64_FTR_BITS(FTR_STRICT, FTR_HIGHER_SAFE, 24, 4, 0), /* CWG */
U_ARM64_FTR_BITS(FTR_STRICT, FTR_LOWER_SAFE, 20, 4, 0), /* ERG */
U_ARM64_FTR_BITS(FTR_STRICT, FTR_LOWER_SAFE, 16, 4, 1), /* DminLine */
/*
* Linux can handle differing I-cache policies. Userspace JITs will
* make use of *minLine
*/
ARM64_FTR_BITS(FTR_NONSTRICT, FTR_EXACT, 14, 2, 0), /* L1Ip */
U_ARM64_FTR_BITS(FTR_NONSTRICT, FTR_EXACT, 14, 2, 0), /* L1Ip */
ARM64_FTR_BITS(FTR_STRICT, FTR_EXACT, 4, 10, 0), /* RAZ */
ARM64_FTR_BITS(FTR_STRICT, FTR_LOWER_SAFE, 0, 4, 0), /* IminLine */
U_ARM64_FTR_BITS(FTR_STRICT, FTR_LOWER_SAFE, 0, 4, 0), /* IminLine */
ARM64_FTR_END,
};
@ -144,12 +153,12 @@ static struct arm64_ftr_bits ftr_id_mmfr0[] = {
static struct arm64_ftr_bits ftr_id_aa64dfr0[] = {
ARM64_FTR_BITS(FTR_STRICT, FTR_EXACT, 32, 32, 0),
ARM64_FTR_BITS(FTR_STRICT, FTR_LOWER_SAFE, ID_AA64DFR0_CTX_CMPS_SHIFT, 4, 0),
ARM64_FTR_BITS(FTR_STRICT, FTR_LOWER_SAFE, ID_AA64DFR0_WRPS_SHIFT, 4, 0),
ARM64_FTR_BITS(FTR_STRICT, FTR_LOWER_SAFE, ID_AA64DFR0_BRPS_SHIFT, 4, 0),
ARM64_FTR_BITS(FTR_STRICT, FTR_EXACT, ID_AA64DFR0_PMUVER_SHIFT, 4, 0),
ARM64_FTR_BITS(FTR_STRICT, FTR_EXACT, ID_AA64DFR0_TRACEVER_SHIFT, 4, 0),
ARM64_FTR_BITS(FTR_STRICT, FTR_EXACT, ID_AA64DFR0_DEBUGVER_SHIFT, 4, 0x6),
U_ARM64_FTR_BITS(FTR_STRICT, FTR_LOWER_SAFE, ID_AA64DFR0_CTX_CMPS_SHIFT, 4, 0),
U_ARM64_FTR_BITS(FTR_STRICT, FTR_LOWER_SAFE, ID_AA64DFR0_WRPS_SHIFT, 4, 0),
U_ARM64_FTR_BITS(FTR_STRICT, FTR_LOWER_SAFE, ID_AA64DFR0_BRPS_SHIFT, 4, 0),
U_ARM64_FTR_BITS(FTR_STRICT, FTR_EXACT, ID_AA64DFR0_PMUVER_SHIFT, 4, 0),
U_ARM64_FTR_BITS(FTR_STRICT, FTR_EXACT, ID_AA64DFR0_TRACEVER_SHIFT, 4, 0),
U_ARM64_FTR_BITS(FTR_STRICT, FTR_EXACT, ID_AA64DFR0_DEBUGVER_SHIFT, 4, 0x6),
ARM64_FTR_END,
};

33
arch/arm64/kernel/efi.c
Просмотреть файл

@ -127,7 +127,11 @@ static int __init uefi_init(void)
table_size = sizeof(efi_config_table_64_t) * efi.systab->nr_tables;
config_tables = early_memremap(efi_to_phys(efi.systab->tables),
table_size);
if (config_tables == NULL) {
pr_warn("Unable to map EFI config table array.\n");
retval = -ENOMEM;
goto out;
}
retval = efi_config_parse_tables(config_tables, efi.systab->nr_tables,
sizeof(efi_config_table_64_t), NULL);
@ -209,6 +213,14 @@ void __init efi_init(void)
PAGE_ALIGN(params.mmap_size + (params.mmap & ~PAGE_MASK)));
memmap.phys_map = params.mmap;
memmap.map = early_memremap(params.mmap, params.mmap_size);
if (memmap.map == NULL) {
/*
* If we are booting via UEFI, the UEFI memory map is the only
* description of memory we have, so there is little point in
* proceeding if we cannot access it.
*/
panic("Unable to map EFI memory map.\n");
}
memmap.map_end = memmap.map + params.mmap_size;
memmap.desc_size = params.desc_size;
memmap.desc_version = params.desc_ver;
@ -227,7 +239,6 @@ static bool __init efi_virtmap_init(void)
init_new_context(NULL, &efi_mm);
for_each_efi_memory_desc(&memmap, md) {
u64 paddr, npages, size;
pgprot_t prot;
if (!(md->attribute & EFI_MEMORY_RUNTIME))
@ -235,11 +246,6 @@ static bool __init efi_virtmap_init(void)
if (md->virt_addr == 0)
return false;
paddr = md->phys_addr;
npages = md->num_pages;
memrange_efi_to_native(&paddr, &npages);
size = npages << PAGE_SHIFT;
pr_info(" EFI remap 0x%016llx => %p\n",
md->phys_addr, (void *)md->virt_addr);
@ -256,7 +262,8 @@ static bool __init efi_virtmap_init(void)
else
prot = PAGE_KERNEL;
create_pgd_mapping(&efi_mm, paddr, md->virt_addr, size,
create_pgd_mapping(&efi_mm, md->phys_addr, md->virt_addr,
md->num_pages << EFI_PAGE_SHIFT,
__pgprot(pgprot_val(prot) | PTE_NG));
}
return true;
@ -273,12 +280,12 @@ static int __init arm64_enable_runtime_services(void)
if (!efi_enabled(EFI_BOOT)) {
pr_info("EFI services will not be available.\n");
return -1;
return 0;
}
if (efi_runtime_disabled()) {
pr_info("EFI runtime services will be disabled.\n");
return -1;
return 0;
}
pr_info("Remapping and enabling EFI services.\n");
@ -288,7 +295,7 @@ static int __init arm64_enable_runtime_services(void)
mapsize);
if (!memmap.map) {
pr_err("Failed to remap EFI memory map\n");
return -1;
return -ENOMEM;
}
memmap.map_end = memmap.map + mapsize;
efi.memmap = &memmap;
@ -297,13 +304,13 @@ static int __init arm64_enable_runtime_services(void)
sizeof(efi_system_table_t));
if (!efi.systab) {
pr_err("Failed to remap EFI System Table\n");
return -1;
return -ENOMEM;
}
set_bit(EFI_SYSTEM_TABLES, &efi.flags);
if (!efi_virtmap_init()) {
pr_err("No UEFI virtual mapping was installed -- runtime services will not be available\n");
return -1;
return -ENOMEM;
}
/* Set up runtime services function pointers */

2
arch/arm64/kvm/handle_exit.c
Просмотреть файл

@ -37,7 +37,7 @@ static int handle_hvc(struct kvm_vcpu *vcpu, struct kvm_run *run)
{
int ret;
trace_kvm_hvc_arm64(*vcpu_pc(vcpu), *vcpu_reg(vcpu, 0),
trace_kvm_hvc_arm64(*vcpu_pc(vcpu), vcpu_get_reg(vcpu, 0),
kvm_vcpu_hvc_get_imm(vcpu));
ret = kvm_psci_call(vcpu);

14
arch/arm64/kvm/hyp.S
Просмотреть файл

@ -864,6 +864,10 @@ ENTRY(__kvm_flush_vm_context)
ENDPROC(__kvm_flush_vm_context)
__kvm_hyp_panic:
// Stash PAR_EL1 before corrupting it in __restore_sysregs
mrs x0, par_el1
push x0, xzr
// Guess the context by looking at VTTBR:
// If zero, then we're already a host.
// Otherwise restore a minimal host context before panicing.
@ -898,7 +902,7 @@ __kvm_hyp_panic:
mrs x3, esr_el2
mrs x4, far_el2
mrs x5, hpfar_el2
mrs x6, par_el1
pop x6, xzr // active context PAR_EL1
mrs x7, tpidr_el2
mov lr, #(PSR_F_BIT | PSR_I_BIT | PSR_A_BIT | PSR_D_BIT |\
@ -914,7 +918,7 @@ __kvm_hyp_panic:
ENDPROC(__kvm_hyp_panic)
__hyp_panic_str:
.ascii "HYP panic:\nPS:%08x PC:%p ESR:%p\nFAR:%p HPFAR:%p PAR:%p\nVCPU:%p\n\0"
.ascii "HYP panic:\nPS:%08x PC:%016x ESR:%08x\nFAR:%016x HPFAR:%016x PAR:%016x\nVCPU:%p\n\0"
.align 2
@ -1015,9 +1019,15 @@ el1_trap:
b.ne 1f // Not an abort we care about
/* This is an abort. Check for permission fault */
alternative_if_not ARM64_WORKAROUND_834220
and x2, x1, #ESR_ELx_FSC_TYPE
cmp x2, #FSC_PERM
b.ne 1f // Not a permission fault
alternative_else
nop // Use the permission fault path to
nop // check for a valid S1 translation,
nop // regardless of the ESR value.
alternative_endif
/*
* Check for Stage-1 page table walk, which is guaranteed

2
arch/arm64/kvm/inject_fault.c
Просмотреть файл

@ -48,7 +48,7 @@ static void prepare_fault32(struct kvm_vcpu *vcpu, u32 mode, u32 vect_offset)
/* Note: These now point to the banked copies */
*vcpu_spsr(vcpu) = new_spsr_value;
*vcpu_reg(vcpu, 14) = *vcpu_pc(vcpu) + return_offset;
*vcpu_reg32(vcpu, 14) = *vcpu_pc(vcpu) + return_offset;
/* Branch to exception vector */
if (sctlr & (1 << 13))

123
arch/arm64/kvm/sys_regs.c
Просмотреть файл

@ -78,7 +78,7 @@ static u32 get_ccsidr(u32 csselr)
* See note at ARMv7 ARM B1.14.4 (TL;DR: S/W ops are not easily virtualized).
*/
static bool access_dcsw(struct kvm_vcpu *vcpu,
const struct sys_reg_params *p,
struct sys_reg_params *p,
const struct sys_reg_desc *r)
{
if (!p->is_write)
@ -94,21 +94,19 @@ static bool access_dcsw(struct kvm_vcpu *vcpu,
* sys_regs and leave it in complete control of the caches.
*/
static bool access_vm_reg(struct kvm_vcpu *vcpu,
const struct sys_reg_params *p,
struct sys_reg_params *p,
const struct sys_reg_desc *r)
{
unsigned long val;
bool was_enabled = vcpu_has_cache_enabled(vcpu);
BUG_ON(!p->is_write);
val = *vcpu_reg(vcpu, p->Rt);
if (!p->is_aarch32) {
vcpu_sys_reg(vcpu, r->reg) = val;
vcpu_sys_reg(vcpu, r->reg) = p->regval;
} else {
if (!p->is_32bit)
vcpu_cp15_64_high(vcpu, r->reg) = val >> 32;
vcpu_cp15_64_low(vcpu, r->reg) = val & 0xffffffffUL;
vcpu_cp15_64_high(vcpu, r->reg) = upper_32_bits(p->regval);
vcpu_cp15_64_low(vcpu, r->reg) = lower_32_bits(p->regval);
}
kvm_toggle_cache(vcpu, was_enabled);
@ -122,22 +120,19 @@ static bool access_vm_reg(struct kvm_vcpu *vcpu,
* for both AArch64 and AArch32 accesses.
*/
static bool access_gic_sgi(struct kvm_vcpu *vcpu,
const struct sys_reg_params *p,
struct sys_reg_params *p,
const struct sys_reg_desc *r)
{
u64 val;
if (!p->is_write)
return read_from_write_only(vcpu, p);
val = *vcpu_reg(vcpu, p->Rt);
vgic_v3_dispatch_sgi(vcpu, val);
vgic_v3_dispatch_sgi(vcpu, p->regval);
return true;
}
static bool trap_raz_wi(struct kvm_vcpu *vcpu,
const struct sys_reg_params *p,
struct sys_reg_params *p,
const struct sys_reg_desc *r)
{
if (p->is_write)
@ -147,19 +142,19 @@ static bool trap_raz_wi(struct kvm_vcpu *vcpu,
}
static bool trap_oslsr_el1(struct kvm_vcpu *vcpu,
const struct sys_reg_params *p,
struct sys_reg_params *p,
const struct sys_reg_desc *r)
{
if (p->is_write) {
return ignore_write(vcpu, p);
} else {
*vcpu_reg(vcpu, p->Rt) = (1 << 3);
p->regval = (1 << 3);
return true;
}
}
static bool trap_dbgauthstatus_el1(struct kvm_vcpu *vcpu,
const struct sys_reg_params *p,
struct sys_reg_params *p,
const struct sys_reg_desc *r)
{
if (p->is_write) {
@ -167,7 +162,7 @@ static bool trap_dbgauthstatus_el1(struct kvm_vcpu *vcpu,
} else {
u32 val;
asm volatile("mrs %0, dbgauthstatus_el1" : "=r" (val));
*vcpu_reg(vcpu, p->Rt) = val;
p->regval = val;
return true;
}
}
@ -200,17 +195,17 @@ static bool trap_dbgauthstatus_el1(struct kvm_vcpu *vcpu,
* now use the debug registers.
*/
static bool trap_debug_regs(struct kvm_vcpu *vcpu,
const struct sys_reg_params *p,
struct sys_reg_params *p,
const struct sys_reg_desc *r)
{
if (p->is_write) {
vcpu_sys_reg(vcpu, r->reg) = *vcpu_reg(vcpu, p->Rt);
vcpu_sys_reg(vcpu, r->reg) = p->regval;
vcpu->arch.debug_flags |= KVM_ARM64_DEBUG_DIRTY;
} else {
*vcpu_reg(vcpu, p->Rt) = vcpu_sys_reg(vcpu, r->reg);
p->regval = vcpu_sys_reg(vcpu, r->reg);
}
trace_trap_reg(__func__, r->reg, p->is_write, *vcpu_reg(vcpu, p->Rt));
trace_trap_reg(__func__, r->reg, p->is_write, p->regval);
return true;
}
@ -225,10 +220,10 @@ static bool trap_debug_regs(struct kvm_vcpu *vcpu,
* hyp.S code switches between host and guest values in future.
*/
static inline void reg_to_dbg(struct kvm_vcpu *vcpu,
const struct sys_reg_params *p,
struct sys_reg_params *p,
u64 *dbg_reg)
{
u64 val = *vcpu_reg(vcpu, p->Rt);
u64 val = p->regval;
if (p->is_32bit) {
val &= 0xffffffffUL;
@ -240,19 +235,16 @@ static inline void reg_to_dbg(struct kvm_vcpu *vcpu,
}
static inline void dbg_to_reg(struct kvm_vcpu *vcpu,
const struct sys_reg_params *p,
struct sys_reg_params *p,
u64 *dbg_reg)
{
u64 val = *dbg_reg;
p->regval = *dbg_reg;
if (p->is_32bit)
val &= 0xffffffffUL;
*vcpu_reg(vcpu, p->Rt) = val;
p->regval &= 0xffffffffUL;
}
static inline bool trap_bvr(struct kvm_vcpu *vcpu,
const struct sys_reg_params *p,
struct sys_reg_params *p,
const struct sys_reg_desc *rd)
{
u64 *dbg_reg = &vcpu->arch.vcpu_debug_state.dbg_bvr[rd->reg];
@ -294,7 +286,7 @@ static inline void reset_bvr(struct kvm_vcpu *vcpu,
}
static inline bool trap_bcr(struct kvm_vcpu *vcpu,
const struct sys_reg_params *p,
struct sys_reg_params *p,
const struct sys_reg_desc *rd)
{
u64 *dbg_reg = &vcpu->arch.vcpu_debug_state.dbg_bcr[rd->reg];
@ -337,7 +329,7 @@ static inline void reset_bcr(struct kvm_vcpu *vcpu,
}
static inline bool trap_wvr(struct kvm_vcpu *vcpu,
const struct sys_reg_params *p,
struct sys_reg_params *p,
const struct sys_reg_desc *rd)
{
u64 *dbg_reg = &vcpu->arch.vcpu_debug_state.dbg_wvr[rd->reg];
@ -380,7 +372,7 @@ static inline void reset_wvr(struct kvm_vcpu *vcpu,
}
static inline bool trap_wcr(struct kvm_vcpu *vcpu,
const struct sys_reg_params *p,
struct sys_reg_params *p,
const struct sys_reg_desc *rd)
{
u64 *dbg_reg = &vcpu->arch.vcpu_debug_state.dbg_wcr[rd->reg];
@ -687,7 +679,7 @@ static const struct sys_reg_desc sys_reg_descs[] = {
};
static bool trap_dbgidr(struct kvm_vcpu *vcpu,
const struct sys_reg_params *p,
struct sys_reg_params *p,
const struct sys_reg_desc *r)
{
if (p->is_write) {
@ -697,23 +689,23 @@ static bool trap_dbgidr(struct kvm_vcpu *vcpu,
u64 pfr = read_system_reg(SYS_ID_AA64PFR0_EL1);
u32 el3 = !!cpuid_feature_extract_field(pfr, ID_AA64PFR0_EL3_SHIFT);
*vcpu_reg(vcpu, p->Rt) = ((((dfr >> ID_AA64DFR0_WRPS_SHIFT) & 0xf) << 28) |
(((dfr >> ID_AA64DFR0_BRPS_SHIFT) & 0xf) << 24) |
(((dfr >> ID_AA64DFR0_CTX_CMPS_SHIFT) & 0xf) << 20) |
(6 << 16) | (el3 << 14) | (el3 << 12));
p->regval = ((((dfr >> ID_AA64DFR0_WRPS_SHIFT) & 0xf) << 28) |
(((dfr >> ID_AA64DFR0_BRPS_SHIFT) & 0xf) << 24) |
(((dfr >> ID_AA64DFR0_CTX_CMPS_SHIFT) & 0xf) << 20)
| (6 << 16) | (el3 << 14) | (el3 << 12));
return true;
}
}
static bool trap_debug32(struct kvm_vcpu *vcpu,
const struct sys_reg_params *p,
struct sys_reg_params *p,
const struct sys_reg_desc *r)
{
if (p->is_write) {
vcpu_cp14(vcpu, r->reg) = *vcpu_reg(vcpu, p->Rt);
vcpu_cp14(vcpu, r->reg) = p->regval;
vcpu->arch.debug_flags |= KVM_ARM64_DEBUG_DIRTY;
} else {
*vcpu_reg(vcpu, p->Rt) = vcpu_cp14(vcpu, r->reg);
p->regval = vcpu_cp14(vcpu, r->reg);
}
return true;
@ -731,7 +723,7 @@ static bool trap_debug32(struct kvm_vcpu *vcpu,
*/
static inline bool trap_xvr(struct kvm_vcpu *vcpu,
const struct sys_reg_params *p,
struct sys_reg_params *p,
const struct sys_reg_desc *rd)
{
u64 *dbg_reg = &vcpu->arch.vcpu_debug_state.dbg_bvr[rd->reg];
@ -740,12 +732,12 @@ static inline bool trap_xvr(struct kvm_vcpu *vcpu,
u64 val = *dbg_reg;
val &= 0xffffffffUL;
val |= *vcpu_reg(vcpu, p->Rt) << 32;
val |= p->regval << 32;
*dbg_reg = val;
vcpu->arch.debug_flags |= KVM_ARM64_DEBUG_DIRTY;
} else {
*vcpu_reg(vcpu, p->Rt) = *dbg_reg >> 32;
p->regval = *dbg_reg >> 32;
}
trace_trap_reg(__func__, rd->reg, p->is_write, *dbg_reg);
@ -991,7 +983,7 @@ int kvm_handle_cp14_load_store(struct kvm_vcpu *vcpu, struct kvm_run *run)
* Return 0 if the access has been handled, and -1 if not.
*/
static int emulate_cp(struct kvm_vcpu *vcpu,
const struct sys_reg_params *params,
struct sys_reg_params *params,
const struct sys_reg_desc *table,
size_t num)
{
@ -1062,12 +1054,12 @@ static int kvm_handle_cp_64(struct kvm_vcpu *vcpu,
{
struct sys_reg_params params;
u32 hsr = kvm_vcpu_get_hsr(vcpu);
int Rt = (hsr >> 5) & 0xf;
int Rt2 = (hsr >> 10) & 0xf;
params.is_aarch32 = true;
params.is_32bit = false;
params.CRm = (hsr >> 1) & 0xf;
params.Rt = (hsr >> 5) & 0xf;
params.is_write = ((hsr & 1) == 0);
params.Op0 = 0;
@ -1076,15 +1068,12 @@ static int kvm_handle_cp_64(struct kvm_vcpu *vcpu,
params.CRn = 0;
/*
* Massive hack here. Store Rt2 in the top 32bits so we only
* have one register to deal with. As we use the same trap
* Make a 64-bit value out of Rt and Rt2. As we use the same trap
* backends between AArch32 and AArch64, we get away with it.
*/
if (params.is_write) {
u64 val = *vcpu_reg(vcpu, params.Rt);
val &= 0xffffffff;
val |= *vcpu_reg(vcpu, Rt2) << 32;
*vcpu_reg(vcpu, params.Rt) = val;
params.regval = vcpu_get_reg(vcpu, Rt) & 0xffffffff;
params.regval |= vcpu_get_reg(vcpu, Rt2) << 32;
}
if (!emulate_cp(vcpu, &params, target_specific, nr_specific))
@ -1095,11 +1084,10 @@ static int kvm_handle_cp_64(struct kvm_vcpu *vcpu,
unhandled_cp_access(vcpu, &params);
out:
/* Do the opposite hack for the read side */
/* Split up the value between registers for the read side */
if (!params.is_write) {
u64 val = *vcpu_reg(vcpu, params.Rt);
val >>= 32;
*vcpu_reg(vcpu, Rt2) = val;
vcpu_set_reg(vcpu, Rt, lower_32_bits(params.regval));
vcpu_set_reg(vcpu, Rt2, upper_32_bits(params.regval));
}
return 1;
@ -1118,21 +1106,24 @@ static int kvm_handle_cp_32(struct kvm_vcpu *vcpu,
{
struct sys_reg_params params;
u32 hsr = kvm_vcpu_get_hsr(vcpu);
int Rt = (hsr >> 5) & 0xf;
params.is_aarch32 = true;
params.is_32bit = true;
params.CRm = (hsr >> 1) & 0xf;
params.Rt = (hsr >> 5) & 0xf;
params.regval = vcpu_get_reg(vcpu, Rt);
params.is_write = ((hsr & 1) == 0);
params.CRn = (hsr >> 10) & 0xf;
params.Op0 = 0;
params.Op1 = (hsr >> 14) & 0x7;
params.Op2 = (hsr >> 17) & 0x7;
if (!emulate_cp(vcpu, &params, target_specific, nr_specific))
return 1;
if (!emulate_cp(vcpu, &params, global, nr_global))
if (!emulate_cp(vcpu, &params, target_specific, nr_specific) ||
!emulate_cp(vcpu, &params, global, nr_global)) {
if (!params.is_write)
vcpu_set_reg(vcpu, Rt, params.regval);
return 1;
}
unhandled_cp_access(vcpu, &params);
return 1;
@ -1175,7 +1166,7 @@ int kvm_handle_cp14_32(struct kvm_vcpu *vcpu, struct kvm_run *run)
}
static int emulate_sys_reg(struct kvm_vcpu *vcpu,
const struct sys_reg_params *params)
struct sys_reg_params *params)
{
size_t num;
const struct sys_reg_desc *table, *r;
@ -1230,6 +1221,8 @@ int kvm_handle_sys_reg(struct kvm_vcpu *vcpu, struct kvm_run *run)
{
struct sys_reg_params params;
unsigned long esr = kvm_vcpu_get_hsr(vcpu);
int Rt = (esr >> 5) & 0x1f;
int ret;
trace_kvm_handle_sys_reg(esr);
@ -1240,10 +1233,14 @@ int kvm_handle_sys_reg(struct kvm_vcpu *vcpu, struct kvm_run *run)
params.CRn = (esr >> 10) & 0xf;
params.CRm = (esr >> 1) & 0xf;
params.Op2 = (esr >> 17) & 0x7;
params.Rt = (esr >> 5) & 0x1f;
params.regval = vcpu_get_reg(vcpu, Rt);
params.is_write = !(esr & 1);
return emulate_sys_reg(vcpu, &params);
ret = emulate_sys_reg(vcpu, &params);
if (!params.is_write)
vcpu_set_reg(vcpu, Rt, params.regval);
return ret;
}
/******************************************************************************

8
arch/arm64/kvm/sys_regs.h
Просмотреть файл

@ -28,7 +28,7 @@ struct sys_reg_params {
u8 CRn;
u8 CRm;
u8 Op2;
u8 Rt;
u64 regval;
bool is_write;
bool is_aarch32;
bool is_32bit; /* Only valid if is_aarch32 is true */
@ -44,7 +44,7 @@ struct sys_reg_desc {
/* Trapped access from guest, if non-NULL. */
bool (*access)(struct kvm_vcpu *,
const struct sys_reg_params *,
struct sys_reg_params *,
const struct sys_reg_desc *);
/* Initialization for vcpu. */
@ -77,9 +77,9 @@ static inline bool ignore_write(struct kvm_vcpu *vcpu,
}
static inline bool read_zero(struct kvm_vcpu *vcpu,
const struct sys_reg_params *p)
struct sys_reg_params *p)
{
*vcpu_reg(vcpu, p->Rt) = 0;
p->regval = 0;
return true;
}

4
arch/arm64/kvm/sys_regs_generic_v8.c
Просмотреть файл

@ -31,13 +31,13 @@
#include "sys_regs.h"
static bool access_actlr(struct kvm_vcpu *vcpu,
const struct sys_reg_params *p,
struct sys_reg_params *p,
const struct sys_reg_desc *r)
{
if (p->is_write)
return ignore_write(vcpu, p);
*vcpu_reg(vcpu, p->Rt) = vcpu_sys_reg(vcpu, ACTLR_EL1);
p->regval = vcpu_sys_reg(vcpu, ACTLR_EL1);
return true;
}

38
arch/arm64/mm/context.c
Просмотреть файл

@ -76,13 +76,28 @@ static void flush_context(unsigned int cpu)
__flush_icache_all();
}
static int is_reserved_asid(u64 asid)
static bool check_update_reserved_asid(u64 asid, u64 newasid)
{
int cpu;
for_each_possible_cpu(cpu)
if (per_cpu(reserved_asids, cpu) == asid)
return 1;
return 0;
bool hit = false;
/*
* Iterate over the set of reserved ASIDs looking for a match.
* If we find one, then we can update our mm to use newasid
* (i.e. the same ASID in the current generation) but we can't
* exit the loop early, since we need to ensure that all copies
* of the old ASID are updated to reflect the mm. Failure to do
* so could result in us missing the reserved ASID in a future
* generation.
*/
for_each_possible_cpu(cpu) {
if (per_cpu(reserved_asids, cpu) == asid) {
hit = true;
per_cpu(reserved_asids, cpu) = newasid;
}
}
return hit;
}
static u64 new_context(struct mm_struct *mm, unsigned int cpu)
@ -92,12 +107,14 @@ static u64 new_context(struct mm_struct *mm, unsigned int cpu)
u64 generation = atomic64_read(&asid_generation);
if (asid != 0) {
u64 newasid = generation | (asid & ~ASID_MASK);
/*
* If our current ASID was active during a rollover, we
* can continue to use it and this was just a false alarm.
*/
if (is_reserved_asid(asid))
return generation | (asid & ~ASID_MASK);
if (check_update_reserved_asid(asid, newasid))
return newasid;
/*
* We had a valid ASID in a previous life, so try to re-use
@ -105,7 +122,7 @@ static u64 new_context(struct mm_struct *mm, unsigned int cpu)
*/
asid &= ~ASID_MASK;
if (!__test_and_set_bit(asid, asid_map))
goto bump_gen;
return newasid;
}
/*
@ -129,10 +146,7 @@ static u64 new_context(struct mm_struct *mm, unsigned int cpu)
set_asid:
__set_bit(asid, asid_map);
cur_idx = asid;
bump_gen:
asid |= generation;
return asid;
return asid | generation;
}
void check_and_switch_context(struct mm_struct *mm, unsigned int cpu)

28
arch/arm64/mm/fault.c
Просмотреть файл

@ -393,16 +393,16 @@ static struct fault_info {
{ do_translation_fault, SIGSEGV, SEGV_MAPERR, "level 1 translation fault" },
{ do_translation_fault, SIGSEGV, SEGV_MAPERR, "level 2 translation fault" },
{ do_page_fault, SIGSEGV, SEGV_MAPERR, "level 3 translation fault" },
{ do_bad, SIGBUS, 0, "reserved access flag fault" },
{ do_bad, SIGBUS, 0, "unknown 8" },
{ do_page_fault, SIGSEGV, SEGV_ACCERR, "level 1 access flag fault" },
{ do_page_fault, SIGSEGV, SEGV_ACCERR, "level 2 access flag fault" },
{ do_page_fault, SIGSEGV, SEGV_ACCERR, "level 3 access flag fault" },
{ do_bad, SIGBUS, 0, "reserved permission fault" },
{ do_bad, SIGBUS, 0, "unknown 12" },
{ do_page_fault, SIGSEGV, SEGV_ACCERR, "level 1 permission fault" },
{ do_page_fault, SIGSEGV, SEGV_ACCERR, "level 2 permission fault" },
{ do_page_fault, SIGSEGV, SEGV_ACCERR, "level 3 permission fault" },
{ do_bad, SIGBUS, 0, "synchronous external abort" },
{ do_bad, SIGBUS, 0, "asynchronous external abort" },
{ do_bad, SIGBUS, 0, "unknown 17" },
{ do_bad, SIGBUS, 0, "unknown 18" },
{ do_bad, SIGBUS, 0, "unknown 19" },
{ do_bad, SIGBUS, 0, "synchronous abort (translation table walk)" },
@ -410,16 +410,16 @@ static struct fault_info {
{ do_bad, SIGBUS, 0, "synchronous abort (translation table walk)" },
{ do_bad, SIGBUS, 0, "synchronous abort (translation table walk)" },
{ do_bad, SIGBUS, 0, "synchronous parity error" },
{ do_bad, SIGBUS, 0, "asynchronous parity error" },
{ do_bad, SIGBUS, 0, "unknown 25" },
{ do_bad, SIGBUS, 0, "unknown 26" },
{ do_bad, SIGBUS, 0, "unknown 27" },
{ do_bad, SIGBUS, 0, "synchronous parity error (translation table walk" },
{ do_bad, SIGBUS, 0, "synchronous parity error (translation table walk" },
{ do_bad, SIGBUS, 0, "synchronous parity error (translation table walk" },
{ do_bad, SIGBUS, 0, "synchronous parity error (translation table walk" },
{ do_bad, SIGBUS, 0, "synchronous parity error (translation table walk)" },
{ do_bad, SIGBUS, 0, "synchronous parity error (translation table walk)" },
{ do_bad, SIGBUS, 0, "synchronous parity error (translation table walk)" },
{ do_bad, SIGBUS, 0, "synchronous parity error (translation table walk)" },
{ do_bad, SIGBUS, 0, "unknown 32" },
{ do_bad, SIGBUS, BUS_ADRALN, "alignment fault" },
{ do_bad, SIGBUS, 0, "debug event" },
{ do_bad, SIGBUS, 0, "unknown 34" },
{ do_bad, SIGBUS, 0, "unknown 35" },
{ do_bad, SIGBUS, 0, "unknown 36" },
{ do_bad, SIGBUS, 0, "unknown 37" },
@ -433,21 +433,21 @@ static struct fault_info {
{ do_bad, SIGBUS, 0, "unknown 45" },
{ do_bad, SIGBUS, 0, "unknown 46" },
{ do_bad, SIGBUS, 0, "unknown 47" },
{ do_bad, SIGBUS, 0, "unknown 48" },
{ do_bad, SIGBUS, 0, "TLB conflict abort" },
{ do_bad, SIGBUS, 0, "unknown 49" },
{ do_bad, SIGBUS, 0, "unknown 50" },
{ do_bad, SIGBUS, 0, "unknown 51" },
{ do_bad, SIGBUS, 0, "implementation fault (lockdown abort)" },
{ do_bad, SIGBUS, 0, "unknown 53" },
{ do_bad, SIGBUS, 0, "implementation fault (unsupported exclusive)" },
{ do_bad, SIGBUS, 0, "unknown 54" },
{ do_bad, SIGBUS, 0, "unknown 55" },
{ do_bad, SIGBUS, 0, "unknown 56" },
{ do_bad, SIGBUS, 0, "unknown 57" },
{ do_bad, SIGBUS, 0, "implementation fault (coprocessor abort)" },
{ do_bad, SIGBUS, 0, "unknown 58" },
{ do_bad, SIGBUS, 0, "unknown 59" },
{ do_bad, SIGBUS, 0, "unknown 60" },
{ do_bad, SIGBUS, 0, "unknown 61" },
{ do_bad, SIGBUS, 0, "unknown 62" },
{ do_bad, SIGBUS, 0, "section domain fault" },
{ do_bad, SIGBUS, 0, "page domain fault" },
{ do_bad, SIGBUS, 0, "unknown 63" },
};

77
arch/arm64/mm/mmu.c
Просмотреть файл

@ -64,8 +64,12 @@ EXPORT_SYMBOL(phys_mem_access_prot);
static void __init *early_alloc(unsigned long sz)
{
void *ptr = __va(memblock_alloc(sz, sz));
BUG_ON(!ptr);
phys_addr_t phys;
void *ptr;
phys = memblock_alloc(sz, sz);
BUG_ON(!phys);
ptr = __va(phys);
memset(ptr, 0, sz);
return ptr;
}
@ -81,55 +85,19 @@ static void split_pmd(pmd_t *pmd, pte_t *pte)
do {
/*
* Need to have the least restrictive permissions available
* permissions will be fixed up later. Default the new page
* range as contiguous ptes.
* permissions will be fixed up later
*/
set_pte(pte, pfn_pte(pfn, PAGE_KERNEL_EXEC_CONT));
set_pte(pte, pfn_pte(pfn, PAGE_KERNEL_EXEC));
pfn++;
} while (pte++, i++, i < PTRS_PER_PTE);
}
/*
* Given a PTE with the CONT bit set, determine where the CONT range
* starts, and clear the entire range of PTE CONT bits.
*/
static void clear_cont_pte_range(pte_t *pte, unsigned long addr)
{
int i;
pte -= CONT_RANGE_OFFSET(addr);
for (i = 0; i < CONT_PTES; i++) {
set_pte(pte, pte_mknoncont(*pte));
pte++;
}
flush_tlb_all();
}
/*
* Given a range of PTEs set the pfn and provided page protection flags
*/
static void __populate_init_pte(pte_t *pte, unsigned long addr,
unsigned long end, phys_addr_t phys,
pgprot_t prot)
{
unsigned long pfn = __phys_to_pfn(phys);
do {
/* clear all the bits except the pfn, then apply the prot */
set_pte(pte, pfn_pte(pfn, prot));
pte++;
pfn++;
addr += PAGE_SIZE;
} while (addr != end);
}
static void alloc_init_pte(pmd_t *pmd, unsigned long addr,
unsigned long end, phys_addr_t phys,
unsigned long end, unsigned long pfn,
pgprot_t prot,
void *(*alloc)(unsigned long size))
{
pte_t *pte;
unsigned long next;
if (pmd_none(*pmd) || pmd_sect(*pmd)) {
pte = alloc(PTRS_PER_PTE * sizeof(pte_t));
@ -142,27 +110,9 @@ static void alloc_init_pte(pmd_t *pmd, unsigned long addr,
pte = pte_offset_kernel(pmd, addr);
do {
next = min(end, (addr + CONT_SIZE) & CONT_MASK);
if (((addr | next | phys) & ~CONT_MASK) == 0) {
/* a block of CONT_PTES */
__populate_init_pte(pte, addr, next, phys,
__pgprot(pgprot_val(prot) | PTE_CONT));
} else {
/*
* If the range being split is already inside of a
* contiguous range but this PTE isn't going to be
* contiguous, then we want to unmark the adjacent
* ranges, then update the portion of the range we
* are interrested in.
*/
clear_cont_pte_range(pte, addr);
__populate_init_pte(pte, addr, next, phys, prot);
}
pte += (next - addr) >> PAGE_SHIFT;
phys += next - addr;
addr = next;
} while (addr != end);
set_pte(pte, pfn_pte(pfn, prot));
pfn++;
} while (pte++, addr += PAGE_SIZE, addr != end);
}
static void split_pud(pud_t *old_pud, pmd_t *pmd)
@ -223,7 +173,8 @@ static void alloc_init_pmd(struct mm_struct *mm, pud_t *pud,
}
}
} else {
alloc_init_pte(pmd, addr, next, phys, prot, alloc);
alloc_init_pte(pmd, addr, next, __phys_to_pfn(phys),
prot, alloc);
}
phys += next - addr;
} while (pmd++, addr = next, addr != end);

47
arch/arm64/net/bpf_jit_comp.c
Просмотреть файл

@ -139,6 +139,12 @@ static inline int epilogue_offset(const struct jit_ctx *ctx)
/* Stack must be multiples of 16B */
#define STACK_ALIGN(sz) (((sz) + 15) & ~15)
#define _STACK_SIZE \
(MAX_BPF_STACK \
+ 4 /* extra for skb_copy_bits buffer */)
#define STACK_SIZE STACK_ALIGN(_STACK_SIZE)
static void build_prologue(struct jit_ctx *ctx)
{
const u8 r6 = bpf2a64[BPF_REG_6];
@ -150,10 +156,6 @@ static void build_prologue(struct jit_ctx *ctx)
const u8 rx = bpf2a64[BPF_REG_X];
const u8 tmp1 = bpf2a64[TMP_REG_1];
const u8 tmp2 = bpf2a64[TMP_REG_2];
int stack_size = MAX_BPF_STACK;
stack_size += 4; /* extra for skb_copy_bits buffer */
stack_size = STACK_ALIGN(stack_size);
/*
* BPF prog stack layout
@ -165,12 +167,13 @@ static void build_prologue(struct jit_ctx *ctx)
* | ... | callee saved registers
* +-----+
* | | x25/x26
* BPF fp register => -80:+-----+
* BPF fp register => -80:+-----+ <= (BPF_FP)
* | |
* | ... | BPF prog stack
* | |
* | |
* current A64_SP => +-----+
* +-----+ <= (BPF_FP - MAX_BPF_STACK)
* |RSVD | JIT scratchpad
* current A64_SP => +-----+ <= (BPF_FP - STACK_SIZE)
* | |
* | ... | Function call stack
* | |
@ -196,7 +199,7 @@ static void build_prologue(struct jit_ctx *ctx)
emit(A64_MOV(1, fp, A64_SP), ctx);
/* Set up function call stack */
emit(A64_SUB_I(1, A64_SP, A64_SP, stack_size), ctx);
emit(A64_SUB_I(1, A64_SP, A64_SP, STACK_SIZE), ctx);
/* Clear registers A and X */
emit_a64_mov_i64(ra, 0, ctx);
@ -213,13 +216,9 @@ static void build_epilogue(struct jit_ctx *ctx)
const u8 fp = bpf2a64[BPF_REG_FP];
const u8 tmp1 = bpf2a64[TMP_REG_1];
const u8 tmp2 = bpf2a64[TMP_REG_2];
int stack_size = MAX_BPF_STACK;
stack_size += 4; /* extra for skb_copy_bits buffer */
stack_size = STACK_ALIGN(stack_size);
/* We're done with BPF stack */
emit(A64_ADD_I(1, A64_SP, A64_SP, stack_size), ctx);
emit(A64_ADD_I(1, A64_SP, A64_SP, STACK_SIZE), ctx);
/* Restore fs (x25) and x26 */
emit(A64_POP(fp, A64_R(26), A64_SP), ctx);
@ -591,7 +590,25 @@ emit_cond_jmp:
case BPF_ST | BPF_MEM | BPF_H:
case BPF_ST | BPF_MEM | BPF_B:
case BPF_ST | BPF_MEM | BPF_DW:
goto notyet;
/* Load imm to a register then store it */
ctx->tmp_used = 1;
emit_a64_mov_i(1, tmp2, off, ctx);
emit_a64_mov_i(1, tmp, imm, ctx);
switch (BPF_SIZE(code)) {
case BPF_W:
emit(A64_STR32(tmp, dst, tmp2), ctx);
break;
case BPF_H:
emit(A64_STRH(tmp, dst, tmp2), ctx);
break;
case BPF_B:
emit(A64_STRB(tmp, dst, tmp2), ctx);
break;
case BPF_DW:
emit(A64_STR64(tmp, dst, tmp2), ctx);
break;
}
break;
/* STX: *(size *)(dst + off) = src */
case BPF_STX | BPF_MEM | BPF_W:
@ -658,7 +675,7 @@ emit_cond_jmp:
return -EINVAL;
}
emit_a64_mov_i64(r3, size, ctx);
emit(A64_ADD_I(1, r4, fp, MAX_BPF_STACK), ctx);
emit(A64_SUB_I(1, r4, fp, STACK_SIZE), ctx);
emit_a64_mov_i64(r5, (unsigned long)bpf_load_pointer, ctx);
emit(A64_PUSH(A64_FP, A64_LR, A64_SP), ctx);
emit(A64_MOV(1, A64_FP, A64_SP), ctx);

2
arch/m68k/coldfire/m54xx.c
Просмотреть файл

@ -98,7 +98,7 @@ static void __init mcf54xx_bootmem_alloc(void)
memstart = PAGE_ALIGN(_ramstart);
min_low_pfn = PFN_DOWN(_rambase);
start_pfn = PFN_DOWN(memstart);
max_low_pfn = PFN_DOWN(_ramend);
max_pfn = max_low_pfn = PFN_DOWN(_ramend);
high_memory = (void *)_ramend;
m68k_virt_to_node_shift = fls(_ramend - _rambase - 1) - 6;

2
arch/m68k/include/asm/unistd.h
Просмотреть файл

@ -4,7 +4,7 @@
#include <uapi/asm/unistd.h>
#define NR_syscalls 375
#define NR_syscalls 376
#define __ARCH_WANT_OLD_READDIR
#define __ARCH_WANT_OLD_STAT

1
arch/m68k/include/uapi/asm/unistd.h
Просмотреть файл

@ -380,5 +380,6 @@
#define __NR_sendmmsg 372
#define __NR_userfaultfd 373
#define __NR_membarrier 374
#define __NR_mlock2 375
#endif /* _UAPI_ASM_M68K_UNISTD_H_ */

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