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Merge branch 'linus' into locking/core, to pick up fixes 

Signed-off-by: Ingo Molnar <mingo@kernel.org>
This commit is contained in:
Ingo Molnar 2019-04-10 09:14:42 +02:00
parent ddb20d1d3a 771acc7e4a
commit 54bbfe75cb
320 changed files with 3149 additions and 1885 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
.mailmap
View File

@ -156,6 +156,8 @@ Morten Welinder <welinder@darter.rentec.com>
Morten Welinder <welinder@troll.com>
Mythri P K <mythripk@ti.com>
Nguyen Anh Quynh <aquynh@gmail.com>
Nicolas Pitre <nico@fluxnic.net> <nicolas.pitre@linaro.org>
Nicolas Pitre <nico@fluxnic.net> <nico@linaro.org>
Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it>
Patrick Mochel <mochel@digitalimplant.org>
Paul Burton <paul.burton@mips.com> <paul.burton@imgtec.com>

12
Documentation/accounting/psi.txt
View File

@ -56,12 +56,12 @@ situation from a state where some tasks are stalled but the CPU is
still doing productive work. As such, time spent in this subset of the
stall state is tracked separately and exported in the "full" averages.
The ratios are tracked as recent trends over ten, sixty, and three
hundred second windows, which gives insight into short term events as
well as medium and long term trends. The total absolute stall time is
tracked and exported as well, to allow detection of latency spikes
which wouldn't necessarily make a dent in the time averages, or to
average trends over custom time frames.
The ratios (in %) are tracked as recent trends over ten, sixty, and
three hundred second windows, which gives insight into short term events
as well as medium and long term trends. The total absolute stall time
(in us) is tracked and exported as well, to allow detection of latency
spikes which wouldn't necessarily make a dent in the time averages,
or to average trends over custom time frames.
Cgroup2 interface
=================

8
Documentation/bpf/btf.rst
View File

@ -148,16 +148,16 @@ The ``btf_type.size * 8`` must be equal to or greater than ``BTF_INT_BITS()``
for the type. The maximum value of ``BTF_INT_BITS()`` is 128.
The ``BTF_INT_OFFSET()`` specifies the starting bit offset to calculate values
for this int. For example, a bitfield struct member has: * btf member bit
offset 100 from the start of the structure, * btf member pointing to an int
type, * the int type has ``BTF_INT_OFFSET() = 2`` and ``BTF_INT_BITS() = 4``
for this int. For example, a bitfield struct member has:
* btf member bit offset 100 from the start of the structure,
* btf member pointing to an int type,
* the int type has ``BTF_INT_OFFSET() = 2`` and ``BTF_INT_BITS() = 4``
Then in the struct memory layout, this member will occupy ``4`` bits starting
from bits ``100 + 2 = 102``.
Alternatively, the bitfield struct member can be the following to access the
same bits as the above:
* btf member bit offset 102,
* btf member pointing to an int type,
* the int type has ``BTF_INT_OFFSET() = 0`` and ``BTF_INT_BITS() = 4``

2
Documentation/devicetree/bindings/arm/cpus.yaml
View File

@ -228,7 +228,7 @@ patternProperties:
- renesas,r9a06g032-smp
- rockchip,rk3036-smp
- rockchip,rk3066-smp
- socionext,milbeaut-m10v-smp
- socionext,milbeaut-m10v-smp
- ste,dbx500-smp
cpu-release-addr:

4
Documentation/devicetree/bindings/hwmon/adc128d818.txt
View File

@ -26,7 +26,7 @@ Required node properties:
Optional node properties:
- ti,mode: Operation mode (see above).
- ti,mode: Operation mode (u8) (see above).
Example (operation mode 2):
@ -34,5 +34,5 @@ Example (operation mode 2):
adc128d818@1d {
compatible = "ti,adc128d818";
reg = <0x1d>;
ti,mode = <2>;
ti,mode = /bits/ 8 <2>;
};

8
Documentation/lzo.txt
View File

@ -102,9 +102,11 @@ Byte sequences
dictionary which is empty, and that it will always be
invalid at this place.
17 : bitstream version. If the first byte is 17, the next byte
gives the bitstream version (version 1 only). If the first byte
is not 17, the bitstream version is 0.
17 : bitstream version. If the first byte is 17, and compressed
stream length is at least 5 bytes (length of shortest possible
versioned bitstream), the next byte gives the bitstream version
(version 1 only).
Otherwise, the bitstream version is 0.
18..21 : copy 0..3 literals
state = (byte - 17) = 0..3 [ copy <state> literals ]

126
Documentation/networking/bpf_flow_dissector.rst Normal file
View File

@ -0,0 +1,126 @@
.. SPDX-License-Identifier: GPL-2.0
==================
BPF Flow Dissector
==================
Overview
========
Flow dissector is a routine that parses metadata out of the packets. It's
used in the various places in the networking subsystem (RFS, flow hash, etc).
BPF flow dissector is an attempt to reimplement C-based flow dissector logic
in BPF to gain all the benefits of BPF verifier (namely, limits on the
number of instructions and tail calls).
API
===
BPF flow dissector programs operate on an ``__sk_buff``. However, only the
limited set of fields is allowed: ``data``, ``data_end`` and ``flow_keys``.
``flow_keys`` is ``struct bpf_flow_keys`` and contains flow dissector input
and output arguments.
The inputs are:
* ``nhoff`` - initial offset of the networking header
* ``thoff`` - initial offset of the transport header, initialized to nhoff
* ``n_proto`` - L3 protocol type, parsed out of L2 header
Flow dissector BPF program should fill out the rest of the ``struct
bpf_flow_keys`` fields. Input arguments ``nhoff/thoff/n_proto`` should be
also adjusted accordingly.
The return code of the BPF program is either BPF_OK to indicate successful
dissection, or BPF_DROP to indicate parsing error.
__sk_buff->data
===============
In the VLAN-less case, this is what the initial state of the BPF flow
dissector looks like::
+------+------+------------+-----------+
| DMAC | SMAC | ETHER_TYPE | L3_HEADER |
+------+------+------------+-----------+
^
|
+-- flow dissector starts here
.. code:: c
skb->data + flow_keys->nhoff point to the first byte of L3_HEADER
flow_keys->thoff = nhoff
flow_keys->n_proto = ETHER_TYPE
In case of VLAN, flow dissector can be called with the two different states.
Pre-VLAN parsing::
+------+------+------+-----+-----------+-----------+
| DMAC | SMAC | TPID | TCI |ETHER_TYPE | L3_HEADER |
+------+------+------+-----+-----------+-----------+
^
|
+-- flow dissector starts here
.. code:: c
skb->data + flow_keys->nhoff point the to first byte of TCI
flow_keys->thoff = nhoff
flow_keys->n_proto = TPID
Please note that TPID can be 802.1AD and, hence, BPF program would
have to parse VLAN information twice for double tagged packets.
Post-VLAN parsing::
+------+------+------+-----+-----------+-----------+
| DMAC | SMAC | TPID | TCI |ETHER_TYPE | L3_HEADER |
+------+------+------+-----+-----------+-----------+
^
|
+-- flow dissector starts here
.. code:: c
skb->data + flow_keys->nhoff point the to first byte of L3_HEADER
flow_keys->thoff = nhoff
flow_keys->n_proto = ETHER_TYPE
In this case VLAN information has been processed before the flow dissector
and BPF flow dissector is not required to handle it.
The takeaway here is as follows: BPF flow dissector program can be called with
the optional VLAN header and should gracefully handle both cases: when single
or double VLAN is present and when it is not present. The same program
can be called for both cases and would have to be written carefully to
handle both cases.
Reference Implementation
========================
See ``tools/testing/selftests/bpf/progs/bpf_flow.c`` for the reference
implementation and ``tools/testing/selftests/bpf/flow_dissector_load.[hc]``
for the loader. bpftool can be used to load BPF flow dissector program as well.
The reference implementation is organized as follows:
* ``jmp_table`` map that contains sub-programs for each supported L3 protocol
* ``_dissect`` routine - entry point; it does input ``n_proto`` parsing and
does ``bpf_tail_call`` to the appropriate L3 handler
Since BPF at this point doesn't support looping (or any jumping back),
jmp_table is used instead to handle multiple levels of encapsulation (and
IPv6 options).
Current Limitations
===================
BPF flow dissector doesn't support exporting all the metadata that in-kernel
C-based implementation can export. Notable example is single VLAN (802.1Q)
and double VLAN (802.1AD) tags. Please refer to the ``struct bpf_flow_keys``
for a set of information that's currently can be exported from the BPF context.

1
Documentation/networking/index.rst
View File

@ -9,6 +9,7 @@ Contents:
netdev-FAQ
af_xdp
batman-adv
bpf_flow_dissector
can
can_ucan_protocol
device_drivers/freescale/dpaa2/index

13
MAINTAINERS
View File

@ -1893,14 +1893,15 @@ T: git git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-nomadik.git
ARM/NUVOTON NPCM ARCHITECTURE
M: Avi Fishman <avifishman70@gmail.com>
M: Tomer Maimon <tmaimon77@gmail.com>
M: Tali Perry <tali.perry1@gmail.com>
R: Patrick Venture <venture@google.com>
R: Nancy Yuen <yuenn@google.com>
R: Brendan Higgins <brendanhiggins@google.com>
R: Benjamin Fair <benjaminfair@google.com>
L: openbmc@lists.ozlabs.org (moderated for non-subscribers)
S: Supported
F: arch/arm/mach-npcm/
F: arch/arm/boot/dts/nuvoton-npcm*
F: include/dt-bindings/clock/nuvoton,npcm7xx-clks.h
F: include/dt-bindings/clock/nuvoton,npcm7xx-clock.h
F: drivers/*/*npcm*
F: Documentation/devicetree/bindings/*/*npcm*
F: Documentation/devicetree/bindings/*/*/*npcm*
@ -4129,7 +4130,7 @@ F: drivers/cpuidle/*
F: include/linux/cpuidle.h
CRAMFS FILESYSTEM
M: Nicolas Pitre <nico@linaro.org>
M: Nicolas Pitre <nico@fluxnic.net>
S: Maintained
F: Documentation/filesystems/cramfs.txt
F: fs/cramfs/
@ -5833,7 +5834,7 @@ L: netdev@vger.kernel.org
S: Maintained
F: Documentation/ABI/testing/sysfs-bus-mdio
F: Documentation/devicetree/bindings/net/mdio*
F: Documentation/networking/phy.txt
F: Documentation/networking/phy.rst
F: drivers/net/phy/
F: drivers/of/of_mdio.c
F: drivers/of/of_net.c
@ -7515,7 +7516,7 @@ F: include/net/mac802154.h
F: include/net/af_ieee802154.h
F: include/net/cfg802154.h
F: include/net/ieee802154_netdev.h
F: Documentation/networking/ieee802154.txt
F: Documentation/networking/ieee802154.rst
IFE PROTOCOL
M: Yotam Gigi <yotam.gi@gmail.com>
@ -13980,7 +13981,7 @@ F: drivers/media/rc/serial_ir.c
SFC NETWORK DRIVER
M: Solarflare linux maintainers <linux-net-drivers@solarflare.com>
M: Edward Cree <ecree@solarflare.com>
M: Bert Kenward <bkenward@solarflare.com>
M: Martin Habets <mhabets@solarflare.com>
L: netdev@vger.kernel.org
S: Supported
F: drivers/net/ethernet/sfc/

2
Makefile
View File

@ -2,7 +2,7 @@
VERSION = 5
PATCHLEVEL = 1
SUBLEVEL = 0
EXTRAVERSION = -rc3
EXTRAVERSION = -rc4
NAME = Shy Crocodile
# *DOCUMENTATION*

7
arch/arc/include/asm/syscall.h
View File

@ -55,12 +55,11 @@ syscall_set_return_value(struct task_struct *task, struct pt_regs *regs,
*/
static inline void
syscall_get_arguments(struct task_struct *task, struct pt_regs *regs,
unsigned int i, unsigned int n, unsigned long *args)
unsigned long *args)
{
unsigned long *inside_ptregs = &(regs->r0);
inside_ptregs -= i;
BUG_ON((i + n) > 6);
unsigned int n = 6;
unsigned int i = 0;
while (n--) {
args[i++] = (*inside_ptregs);

26
arch/arm/boot/dts/am335x-evm.dts
View File

@ -57,6 +57,24 @@
enable-active-high;
};
/* TPS79501 */
v1_8d_reg: fixedregulator-v1_8d {
compatible = "regulator-fixed";
regulator-name = "v1_8d";
vin-supply = <&vbat>;
regulator-min-microvolt = <1800000>;
regulator-max-microvolt = <1800000>;
};
/* TPS79501 */
v3_3d_reg: fixedregulator-v3_3d {
compatible = "regulator-fixed";
regulator-name = "v3_3d";
vin-supply = <&vbat>;
regulator-min-microvolt = <3300000>;
regulator-max-microvolt = <3300000>;
};
matrix_keypad: matrix_keypad0 {
compatible = "gpio-matrix-keypad";
debounce-delay-ms = <5>;
@ -499,10 +517,10 @@
status = "okay";
/* Regulators */
AVDD-supply = <&vaux2_reg>;
IOVDD-supply = <&vaux2_reg>;
DRVDD-supply = <&vaux2_reg>;
DVDD-supply = <&vbat>;
AVDD-supply = <&v3_3d_reg>;
IOVDD-supply = <&v3_3d_reg>;
DRVDD-supply = <&v3_3d_reg>;
DVDD-supply = <&v1_8d_reg>;
};
};

26
arch/arm/boot/dts/am335x-evmsk.dts
View File

@ -73,6 +73,24 @@
enable-active-high;
};
/* TPS79518 */
v1_8d_reg: fixedregulator-v1_8d {
compatible = "regulator-fixed";
regulator-name = "v1_8d";
vin-supply = <&vbat>;
regulator-min-microvolt = <1800000>;
regulator-max-microvolt = <1800000>;
};
/* TPS78633 */
v3_3d_reg: fixedregulator-v3_3d {
compatible = "regulator-fixed";
regulator-name = "v3_3d";
vin-supply = <&vbat>;
regulator-min-microvolt = <3300000>;
regulator-max-microvolt = <3300000>;
};
leds {
pinctrl-names = "default";
pinctrl-0 = <&user_leds_s0>;
@ -501,10 +519,10 @@
status = "okay";
/* Regulators */
AVDD-supply = <&vaux2_reg>;
IOVDD-supply = <&vaux2_reg>;
DRVDD-supply = <&vaux2_reg>;
DVDD-supply = <&vbat>;
AVDD-supply = <&v3_3d_reg>;
IOVDD-supply = <&v3_3d_reg>;
DRVDD-supply = <&v3_3d_reg>;
DVDD-supply = <&v1_8d_reg>;
};
};

4
arch/arm/boot/dts/am33xx-l4.dtsi
View File

@ -1762,7 +1762,7 @@
reg = <0xcc000 0x4>;
reg-names = "rev";
/* Domains (P, C): per_pwrdm, l4ls_clkdm */
clocks = <&l4ls_clkctrl AM3_D_CAN0_CLKCTRL 0>;
clocks = <&l4ls_clkctrl AM3_L4LS_D_CAN0_CLKCTRL 0>;
clock-names = "fck";
#address-cells = <1>;
#size-cells = <1>;
@ -1785,7 +1785,7 @@
reg = <0xd0000 0x4>;
reg-names = "rev";
/* Domains (P, C): per_pwrdm, l4ls_clkdm */
clocks = <&l4ls_clkctrl AM3_D_CAN1_CLKCTRL 0>;
clocks = <&l4ls_clkctrl AM3_L4LS_D_CAN1_CLKCTRL 0>;
clock-names = "fck";
#address-cells = <1>;
#size-cells = <1>;

3
arch/arm/boot/dts/rk3288-tinker.dtsi
View File

@ -254,6 +254,7 @@
};
vccio_sd: LDO_REG5 {
regulator-boot-on;
regulator-min-microvolt = <1800000>;
regulator-max-microvolt = <3300000>;
regulator-name = "vccio_sd";
@ -430,7 +431,7 @@
bus-width = <4>;
cap-mmc-highspeed;
cap-sd-highspeed;
card-detect-delay = <200>;
broken-cd;
disable-wp; /* wp not hooked up */
pinctrl-names = "default";
pinctrl-0 = <&sdmmc_clk &sdmmc_cmd &sdmmc_cd &sdmmc_bus4>;

2
arch/arm/boot/dts/rk3288-veyron.dtsi
View File

@ -25,8 +25,6 @@
gpio_keys: gpio-keys {
compatible = "gpio-keys";
#address-cells = <1>;
#size-cells = <0>;
pinctrl-names = "default";
pinctrl-0 = <&pwr_key_l>;

20
arch/arm/boot/dts/rk3288.dtsi
View File

@ -70,7 +70,7 @@
compatible = "arm,cortex-a12";
reg = <0x501>;
resets = <&cru SRST_CORE1>;
operating-points = <&cpu_opp_table>;
operating-points-v2 = <&cpu_opp_table>;
#cooling-cells = <2>; /* min followed by max */
clock-latency = <40000>;
clocks = <&cru ARMCLK>;
@ -80,7 +80,7 @@
compatible = "arm,cortex-a12";
reg = <0x502>;
resets = <&cru SRST_CORE2>;
operating-points = <&cpu_opp_table>;
operating-points-v2 = <&cpu_opp_table>;
#cooling-cells = <2>; /* min followed by max */
clock-latency = <40000>;
clocks = <&cru ARMCLK>;
@ -90,7 +90,7 @@
compatible = "arm,cortex-a12";
reg = <0x503>;
resets = <&cru SRST_CORE3>;
operating-points = <&cpu_opp_table>;
operating-points-v2 = <&cpu_opp_table>;
#cooling-cells = <2>; /* min followed by max */
clock-latency = <40000>;
clocks = <&cru ARMCLK>;
@ -1119,8 +1119,6 @@
clock-names = "ref", "pclk";
power-domains = <&power RK3288_PD_VIO>;
rockchip,grf = <&grf>;
#address-cells = <1>;
#size-cells = <0>;
status = "disabled";
ports {
@ -1282,27 +1280,27 @@
gpu_opp_table: gpu-opp-table {
compatible = "operating-points-v2";
opp@100000000 {
opp-100000000 {
opp-hz = /bits/ 64 <100000000>;
opp-microvolt = <950000>;
};
opp@200000000 {
opp-200000000 {
opp-hz = /bits/ 64 <200000000>;
opp-microvolt = <950000>;
};
opp@300000000 {
opp-300000000 {
opp-hz = /bits/ 64 <300000000>;
opp-microvolt = <1000000>;
};
opp@400000000 {
opp-400000000 {
opp-hz = /bits/ 64 <400000000>;
opp-microvolt = <1100000>;
};
opp@500000000 {
opp-500000000 {
opp-hz = /bits/ 64 <500000000>;
opp-microvolt = <1200000>;
};
opp@600000000 {
opp-600000000 {
opp-hz = /bits/ 64 <600000000>;
opp-microvolt = <1250000>;
};

2
arch/arm/boot/dts/sama5d2-pinfunc.h
View File

@ -518,7 +518,7 @@
#define PIN_PC9__GPIO PINMUX_PIN(PIN_PC9, 0, 0)
#define PIN_PC9__FIQ PINMUX_PIN(PIN_PC9, 1, 3)
#define PIN_PC9__GTSUCOMP PINMUX_PIN(PIN_PC9, 2, 1)
#define PIN_PC9__ISC_D0 PINMUX_PIN(PIN_PC9, 2, 1)
#define PIN_PC9__ISC_D0 PINMUX_PIN(PIN_PC9, 3, 1)
#define PIN_PC9__TIOA4 PINMUX_PIN(PIN_PC9, 4, 2)
#define PIN_PC10 74
#define PIN_PC10__GPIO PINMUX_PIN(PIN_PC10, 0, 0)

9
arch/arm/boot/dts/ste-nomadik-nhk15.dts
View File

@ -213,13 +213,12 @@
gpio-sck = <&gpio0 5 GPIO_ACTIVE_HIGH>;
gpio-mosi = <&gpio0 4 GPIO_ACTIVE_HIGH>;
/*
* This chipselect is active high. Just setting the flags
* to GPIO_ACTIVE_HIGH is not enough for the SPI DT bindings,
* it will be ignored, only the special "spi-cs-high" flag
* really counts.
* It's not actually active high, but the frameworks assume
* the polarity of the passed-in GPIO is "normal" (active
* high) then actively drives the line low to select the
* chip.
*/
cs-gpios = <&gpio0 6 GPIO_ACTIVE_HIGH>;
spi-cs-high;
num-chipselects = <1>;
/*

43
arch/arm/include/asm/syscall.h
View File

@ -55,53 +55,22 @@ static inline void syscall_set_return_value(struct task_struct *task,
static inline void syscall_get_arguments(struct task_struct *task,
struct pt_regs *regs,
unsigned int i, unsigned int n,
unsigned long *args)
{
if (n == 0)
return;
args[0] = regs->ARM_ORIG_r0;
args++;
if (i + n > SYSCALL_MAX_ARGS) {
unsigned long *args_bad = args + SYSCALL_MAX_ARGS - i;
unsigned int n_bad = n + i - SYSCALL_MAX_ARGS;
pr_warn("%s called with max args %d, handling only %d\n",
__func__, i + n, SYSCALL_MAX_ARGS);
memset(args_bad, 0, n_bad * sizeof(args[0]));
n = SYSCALL_MAX_ARGS - i;
}
if (i == 0) {
args[0] = regs->ARM_ORIG_r0;
args++;
i++;
n--;
}
memcpy(args, &regs->ARM_r0 + i, n * sizeof(args[0]));
memcpy(args, &regs->ARM_r0 + 1, 5 * sizeof(args[0]));
}
static inline void syscall_set_arguments(struct task_struct *task,
struct pt_regs *regs,
unsigned int i, unsigned int n,
const unsigned long *args)
{
if (n == 0)
return;
regs->ARM_ORIG_r0 = args[0];
args++;
if (i + n > SYSCALL_MAX_ARGS) {
pr_warn("%s called with max args %d, handling only %d\n",
__func__, i + n, SYSCALL_MAX_ARGS);
n = SYSCALL_MAX_ARGS - i;
}
if (i == 0) {
regs->ARM_ORIG_r0 = args[0];
args++;
i++;
n--;
}
memcpy(&regs->ARM_r0 + i, args, n * sizeof(args[0]));
memcpy(&regs->ARM_r0 + 1, args, 5 * sizeof(args[0]));
}
static inline int syscall_get_arch(void)

6
arch/arm/mach-at91/pm.c
View File

@ -591,13 +591,13 @@ static int __init at91_pm_backup_init(void)
np = of_find_compatible_node(NULL, NULL, "atmel,sama5d2-securam");
if (!np)
goto securam_fail;
goto securam_fail_no_ref_dev;
pdev = of_find_device_by_node(np);
of_node_put(np);
if (!pdev) {
pr_warn("%s: failed to find securam device!\n", __func__);
goto securam_fail;
goto securam_fail_no_ref_dev;
}
sram_pool = gen_pool_get(&pdev->dev, NULL);
@ -620,6 +620,8 @@ static int __init at91_pm_backup_init(void)
return 0;
securam_fail:
put_device(&pdev->dev);
securam_fail_no_ref_dev:
iounmap(pm_data.sfrbu);
pm_data.sfrbu = NULL;
return ret;

8
arch/arm/mach-iop13xx/setup.c
View File

@ -300,7 +300,7 @@ static struct resource iop13xx_adma_2_resources[] = {
}
};
static u64 iop13xx_adma_dmamask = DMA_BIT_MASK(64);
static u64 iop13xx_adma_dmamask = DMA_BIT_MASK(32);
static struct iop_adma_platform_data iop13xx_adma_0_data = {
.hw_id = 0,
.pool_size = PAGE_SIZE,
@ -324,7 +324,7 @@ static struct platform_device iop13xx_adma_0_channel = {
.resource = iop13xx_adma_0_resources,
.dev = {
.dma_mask = &iop13xx_adma_dmamask,
.coherent_dma_mask = DMA_BIT_MASK(64),
.coherent_dma_mask = DMA_BIT_MASK(32),
.platform_data = (void *) &iop13xx_adma_0_data,
},
};
@ -336,7 +336,7 @@ static struct platform_device iop13xx_adma_1_channel = {
.resource = iop13xx_adma_1_resources,
.dev = {
.dma_mask = &iop13xx_adma_dmamask,
.coherent_dma_mask = DMA_BIT_MASK(64),
.coherent_dma_mask = DMA_BIT_MASK(32),
.platform_data = (void *) &iop13xx_adma_1_data,
},
};
@ -348,7 +348,7 @@ static struct platform_device iop13xx_adma_2_channel = {
.resource = iop13xx_adma_2_resources,
.dev = {
.dma_mask = &iop13xx_adma_dmamask,
.coherent_dma_mask = DMA_BIT_MASK(64),
.coherent_dma_mask = DMA_BIT_MASK(32),
.platform_data = (void *) &iop13xx_adma_2_data,
},
};

10
arch/arm/mach-iop13xx/tpmi.c
View File

@ -152,7 +152,7 @@ static struct resource iop13xx_tpmi_3_resources[] = {
}
};
u64 iop13xx_tpmi_mask = DMA_BIT_MASK(64);
u64 iop13xx_tpmi_mask = DMA_BIT_MASK(32);
static struct platform_device iop13xx_tpmi_0_device = {
.name = "iop-tpmi",
.id = 0,
@ -160,7 +160,7 @@ static struct platform_device iop13xx_tpmi_0_device = {
.resource = iop13xx_tpmi_0_resources,
.dev = {
.dma_mask = &iop13xx_tpmi_mask,
.coherent_dma_mask = DMA_BIT_MASK(64),
.coherent_dma_mask = DMA_BIT_MASK(32),
},
};
@ -171,7 +171,7 @@ static struct platform_device iop13xx_tpmi_1_device = {
.resource = iop13xx_tpmi_1_resources,
.dev = {
.dma_mask = &iop13xx_tpmi_mask,
.coherent_dma_mask = DMA_BIT_MASK(64),
.coherent_dma_mask = DMA_BIT_MASK(32),
},
};
@ -182,7 +182,7 @@ static struct platform_device iop13xx_tpmi_2_device = {
.resource = iop13xx_tpmi_2_resources,
.dev = {
.dma_mask = &iop13xx_tpmi_mask,
.coherent_dma_mask = DMA_BIT_MASK(64),
.coherent_dma_mask = DMA_BIT_MASK(32),
},
};
@ -193,7 +193,7 @@ static struct platform_device iop13xx_tpmi_3_device = {
.resource = iop13xx_tpmi_3_resources,
.dev = {
.dma_mask = &iop13xx_tpmi_mask,
.coherent_dma_mask = DMA_BIT_MASK(64),
.coherent_dma_mask = DMA_BIT_MASK(32),
},
};

4
arch/arm/mach-milbeaut/platsmp.c
View File

@ -65,6 +65,7 @@ static void m10v_smp_init(unsigned int max_cpus)
writel(KERNEL_UNBOOT_FLAG, m10v_smp_base + cpu * 4);
}
#ifdef CONFIG_HOTPLUG_CPU
static void m10v_cpu_die(unsigned int l_cpu)
{
gic_cpu_if_down(0);
@ -83,12 +84,15 @@ static int m10v_cpu_kill(unsigned int l_cpu)
return 1;
}
#endif
static struct smp_operations m10v_smp_ops __initdata = {
.smp_prepare_cpus = m10v_smp_init,
.smp_boot_secondary = m10v_boot_secondary,
#ifdef CONFIG_HOTPLUG_CPU
.cpu_die = m10v_cpu_die,
.cpu_kill = m10v_cpu_kill,
#endif
};
CPU_METHOD_OF_DECLARE(m10v_smp, "socionext,milbeaut-m10v-smp", &m10v_smp_ops);

2
arch/arm/mach-omap1/board-ams-delta.c
View File

@ -182,6 +182,7 @@ static struct resource latch1_resources[] = {
static struct bgpio_pdata latch1_pdata = {
.label = LATCH1_LABEL,
.base = -1,
.ngpio = LATCH1_NGPIO,
};
@ -219,6 +220,7 @@ static struct resource latch2_resources[] = {
static struct bgpio_pdata latch2_pdata = {
.label = LATCH2_LABEL,
.base = -1,
.ngpio = LATCH2_NGPIO,
};

4
arch/arm/mach-omap2/display.c
View File

@ -250,8 +250,10 @@ static int __init omapdss_init_of(void)
if (!node)
return 0;
if (!of_device_is_available(node))
if (!of_device_is_available(node)) {
of_node_put(node);
return 0;
}
pdev = of_find_device_by_node(node);

6
arch/arm/plat-iop/adma.c
View File

@ -143,7 +143,7 @@ struct platform_device iop3xx_dma_0_channel = {
.resource = iop3xx_dma_0_resources,
.dev = {
.dma_mask = &iop3xx_adma_dmamask,
.coherent_dma_mask = DMA_BIT_MASK(64),
.coherent_dma_mask = DMA_BIT_MASK(32),
.platform_data = (void *) &iop3xx_dma_0_data,
},
};
@ -155,7 +155,7 @@ struct platform_device iop3xx_dma_1_channel = {
.resource = iop3xx_dma_1_resources,
.dev = {
.dma_mask = &iop3xx_adma_dmamask,
.coherent_dma_mask = DMA_BIT_MASK(64),
.coherent_dma_mask = DMA_BIT_MASK(32),
.platform_data = (void *) &iop3xx_dma_1_data,
},
};
@ -167,7 +167,7 @@ struct platform_device iop3xx_aau_channel = {
.resource = iop3xx_aau_resources,
.dev = {
.dma_mask = &iop3xx_adma_dmamask,
.coherent_dma_mask = DMA_BIT_MASK(64),
.coherent_dma_mask = DMA_BIT_MASK(32),
.platform_data = (void *) &iop3xx_aau_data,
},
};

4
arch/arm/plat-orion/common.c
View File

@ -622,7 +622,7 @@ static struct platform_device orion_xor0_shared = {
.resource = orion_xor0_shared_resources,
.dev = {
.dma_mask = &orion_xor_dmamask,
.coherent_dma_mask = DMA_BIT_MASK(64),
.coherent_dma_mask = DMA_BIT_MASK(32),
.platform_data = &orion_xor0_pdata,
},
};
@ -683,7 +683,7 @@ static struct platform_device orion_xor1_shared = {
.resource = orion_xor1_shared_resources,
.dev = {
.dma_mask = &orion_xor_dmamask,
.coherent_dma_mask = DMA_BIT_MASK(64),
.coherent_dma_mask = DMA_BIT_MASK(32),
.platform_data = &orion_xor1_pdata,
},
};

3
arch/arm64/boot/dts/altera/socfpga_stratix10.dtsi
View File

@ -162,6 +162,7 @@
rx-fifo-depth = <16384>;
snps,multicast-filter-bins = <256>;
iommus = <&smmu 1>;
altr,sysmgr-syscon = <&sysmgr 0x44 0>;
status = "disabled";
};
@ -179,6 +180,7 @@
rx-fifo-depth = <16384>;
snps,multicast-filter-bins = <256>;
iommus = <&smmu 2>;
altr,sysmgr-syscon = <&sysmgr 0x48 0>;
status = "disabled";
};
@ -196,6 +198,7 @@
rx-fifo-depth = <16384>;
snps,multicast-filter-bins = <256>;
iommus = <&smmu 3>;
altr,sysmgr-syscon = <&sysmgr 0x4c 0>;
status = "disabled";
};

4
arch/arm64/boot/dts/rockchip/rk3328-roc-cc.dts
View File

@ -108,8 +108,8 @@
snps,reset-gpio = <&gpio1 RK_PC2 GPIO_ACTIVE_LOW>;
snps,reset-active-low;
snps,reset-delays-us = <0 10000 50000>;
tx_delay = <0x25>;
rx_delay = <0x11>;
tx_delay = <0x24>;
rx_delay = <0x18>;
status = "okay";
};

3
arch/arm64/boot/dts/rockchip/rk3328-rock64.dts
View File

@ -46,8 +46,7 @@
vcc_host1_5v: vcc_otg_5v: vcc-host1-5v-regulator {
compatible = "regulator-fixed";
enable-active-high;
gpio = <&gpio0 RK_PA2 GPIO_ACTIVE_HIGH>;
gpio = <&gpio0 RK_PA2 GPIO_ACTIVE_LOW>;
pinctrl-names = "default";
pinctrl-0 = <&usb20_host_drv>;
regulator-name = "vcc_host1_5v";

58
arch/arm64/boot/dts/rockchip/rk3328.dtsi
View File

@ -1445,11 +1445,11 @@
sdmmc0 {
sdmmc0_clk: sdmmc0-clk {
rockchip,pins = <1 RK_PA6 1 &pcfg_pull_none_4ma>;
rockchip,pins = <1 RK_PA6 1 &pcfg_pull_none_8ma>;
};
sdmmc0_cmd: sdmmc0-cmd {
rockchip,pins = <1 RK_PA4 1 &pcfg_pull_up_4ma>;
rockchip,pins = <1 RK_PA4 1 &pcfg_pull_up_8ma>;
};
sdmmc0_dectn: sdmmc0-dectn {
@ -1461,14 +1461,14 @@
};
sdmmc0_bus1: sdmmc0-bus1 {
rockchip,pins = <1 RK_PA0 1 &pcfg_pull_up_4ma>;
rockchip,pins = <1 RK_PA0 1 &pcfg_pull_up_8ma>;
};
sdmmc0_bus4: sdmmc0-bus4 {
rockchip,pins = <1 RK_PA0 1 &pcfg_pull_up_4ma>,
<1 RK_PA1 1 &pcfg_pull_up_4ma>,
<1 RK_PA2 1 &pcfg_pull_up_4ma>,
<1 RK_PA3 1 &pcfg_pull_up_4ma>;
rockchip,pins = <1 RK_PA0 1 &pcfg_pull_up_8ma>,
<1 RK_PA1 1 &pcfg_pull_up_8ma>,
<1 RK_PA2 1 &pcfg_pull_up_8ma>,
<1 RK_PA3 1 &pcfg_pull_up_8ma>;
};
sdmmc0_gpio: sdmmc0-gpio {
@ -1642,50 +1642,50 @@
rgmiim1_pins: rgmiim1-pins {
rockchip,pins =
/* mac_txclk */
<1 RK_PB4 2 &pcfg_pull_none_12ma>,
<1 RK_PB4 2 &pcfg_pull_none_8ma>,
/* mac_rxclk */
<1 RK_PB5 2 &pcfg_pull_none_2ma>,
<1 RK_PB5 2 &pcfg_pull_none_4ma>,
/* mac_mdio */
<1 RK_PC3 2 &pcfg_pull_none_2ma>,
<1 RK_PC3 2 &pcfg_pull_none_4ma>,
/* mac_txen */
<1 RK_PD1 2 &pcfg_pull_none_12ma>,
<1 RK_PD1 2 &pcfg_pull_none_8ma>,
/* mac_clk */
<1 RK_PC5 2 &pcfg_pull_none_2ma>,
<1 RK_PC5 2 &pcfg_pull_none_4ma>,
/* mac_rxdv */
<1 RK_PC6 2 &pcfg_pull_none_2ma>,
<1 RK_PC6 2 &pcfg_pull_none_4ma>,
/* mac_mdc */
<1 RK_PC7 2 &pcfg_pull_none_2ma>,
<1 RK_PC7 2 &pcfg_pull_none_4ma>,
/* mac_rxd1 */
<1 RK_PB2 2 &pcfg_pull_none_2ma>,
<1 RK_PB2 2 &pcfg_pull_none_4ma>,
/* mac_rxd0 */
<1 RK_PB3 2 &pcfg_pull_none_2ma>,
<1 RK_PB3 2 &pcfg_pull_none_4ma>,
/* mac_txd1 */
<1 RK_PB0 2 &pcfg_pull_none_12ma>,
<1 RK_PB0 2 &pcfg_pull_none_8ma>,
/* mac_txd0 */
<1 RK_PB1 2 &pcfg_pull_none_12ma>,
<1 RK_PB1 2 &pcfg_pull_none_8ma>,
/* mac_rxd3 */
<1 RK_PB6 2 &pcfg_pull_none_2ma>,
<1 RK_PB6 2 &pcfg_pull_none_4ma>,
/* mac_rxd2 */
<1 RK_PB7 2 &pcfg_pull_none_2ma>,
<1 RK_PB7 2 &pcfg_pull_none_4ma>,
/* mac_txd3 */
<1 RK_PC0 2 &pcfg_pull_none_12ma>,
<1 RK_PC0 2 &pcfg_pull_none_8ma>,
/* mac_txd2 */
<1 RK_PC1 2 &pcfg_pull_none_12ma>,
<1 RK_PC1 2 &pcfg_pull_none_8ma>,
/* mac_txclk */
<0 RK_PB0 1 &pcfg_pull_none>,
<0 RK_PB0 1 &pcfg_pull_none_8ma>,
/* mac_txen */
<0 RK_PB4 1 &pcfg_pull_none>,
<0 RK_PB4 1 &pcfg_pull_none_8ma>,
/* mac_clk */
<0 RK_PD0 1 &pcfg_pull_none>,
<0 RK_PD0 1 &pcfg_pull_none_4ma>,
/* mac_txd1 */
<0 RK_PC0 1 &pcfg_pull_none>,
<0 RK_PC0 1 &pcfg_pull_none_8ma>,
/* mac_txd0 */
<0 RK_PC1 1 &pcfg_pull_none>,
<0 RK_PC1 1 &pcfg_pull_none_8ma>,
/* mac_txd3 */
<0 RK_PC7 1 &pcfg_pull_none>,
<0 RK_PC7 1 &pcfg_pull_none_8ma>,
/* mac_txd2 */
<0 RK_PC6 1 &pcfg_pull_none>;
<0 RK_PC6 1 &pcfg_pull_none_8ma>;
};
rmiim1_pins: rmiim1-pins {

1
arch/arm64/boot/dts/rockchip/rk3399-rock-pi-4.dts
View File

@ -158,6 +158,7 @@
};
&hdmi {
ddc-i2c-bus = <&i2c3>;
pinctrl-names = "default";
pinctrl-0 = <&hdmi_cec>;
status = "okay";

42
arch/arm64/include/asm/syscall.h
View File

@ -65,52 +65,22 @@ static inline void syscall_set_return_value(struct task_struct *task,
static inline void syscall_get_arguments(struct task_struct *task,
struct pt_regs *regs,
unsigned int i, unsigned int n,
unsigned long *args)
{
if (n == 0)
return;
args[0] = regs->orig_x0;
args++;
if (i + n > SYSCALL_MAX_ARGS) {
unsigned long *args_bad = args + SYSCALL_MAX_ARGS - i;
unsigned int n_bad = n + i - SYSCALL_MAX_ARGS;
pr_warning("%s called with max args %d, handling only %d\n",
__func__, i + n, SYSCALL_MAX_ARGS);
memset(args_bad, 0, n_bad * sizeof(args[0]));
}
if (i == 0) {
args[0] = regs->orig_x0;
args++;
i++;
n--;
}
memcpy(args, &regs->regs[i], n * sizeof(args[0]));
memcpy(args, &regs->regs[1], 5 * sizeof(args[0]));
}
static inline void syscall_set_arguments(struct task_struct *task,
struct pt_regs *regs,
unsigned int i, unsigned int n,
const unsigned long *args)
{
if (n == 0)
return;
regs->orig_x0 = args[0];
args++;
if (i + n > SYSCALL_MAX_ARGS) {
pr_warning("%s called with max args %d, handling only %d\n",
__func__, i + n, SYSCALL_MAX_ARGS);
n = SYSCALL_MAX_ARGS - i;
}
if (i == 0) {
regs->orig_x0 = args[0];
args++;
i++;
n--;
}
memcpy(&regs->regs[i], args, n * sizeof(args[0]));
memcpy(&regs->regs[1], args, 5 * sizeof(args[0]));
}
/*

6
arch/arm64/kernel/sdei.c
View File

@ -94,6 +94,9 @@ static bool on_sdei_normal_stack(unsigned long sp, struct stack_info *info)
unsigned long low = (unsigned long)raw_cpu_read(sdei_stack_normal_ptr);
unsigned long high = low + SDEI_STACK_SIZE;
if (!low)
return false;
if (sp < low || sp >= high)
return false;
@ -111,6 +114,9 @@ static bool on_sdei_critical_stack(unsigned long sp, struct stack_info *info)
unsigned long low = (unsigned long)raw_cpu_read(sdei_stack_critical_ptr);
unsigned long high = low + SDEI_STACK_SIZE;
if (!low)
return false;
if (sp < low || sp >= high)
return false;

79
arch/c6x/include/asm/syscall.h
View File

@ -46,78 +46,27 @@ static inline void syscall_set_return_value(struct task_struct *task,
}
static inline void syscall_get_arguments(struct task_struct *task,
struct pt_regs *regs, unsigned int i,
unsigned int n, unsigned long *args)
struct pt_regs *regs,
unsigned long *args)
{
switch (i) {
case 0:
if (!n--)
break;
*args++ = regs->a4;
case 1:
if (!n--)
break;
*args++ = regs->b4;
case 2:
if (!n--)
break;
*args++ = regs->a6;
case 3:
if (!n--)
break;
*args++ = regs->b6;
case 4:
if (!n--)
break;
*args++ = regs->a8;
case 5:
if (!n--)
break;
*args++ = regs->b8;
case 6:
if (!n--)
break;
default:
BUG();
}
*args++ = regs->a4;
*args++ = regs->b4;
*args++ = regs->a6;
*args++ = regs->b6;
*args++ = regs->a8;
*args = regs->b8;
}
static inline void syscall_set_arguments(struct task_struct *task,
struct pt_regs *regs,
unsigned int i, unsigned int n,
const unsigned long *args)
{
switch (i) {
case 0:
if (!n--)
break;
regs->a4 = *args++;
case 1:
if (!n--)
break;
regs->b4 = *args++;
case 2:
if (!n--)
break;
regs->a6 = *args++;
case 3:
if (!n--)
break;
regs->b6 = *args++;
case 4:
if (!n--)
break;
regs->a8 = *args++;
case 5:
if (!n--)
break;
regs->a9 = *args++;
case 6:
if (!n)
break;
default:
BUG();
}
regs->a4 = *args++;
regs->b4 = *args++;
regs->a6 = *args++;
regs->b6 = *args++;
regs->a8 = *args++;
regs->a9 = *args;
}
#endif /* __ASM_C6X_SYSCALLS_H */

26
arch/csky/include/asm/syscall.h
View File

@ -43,30 +43,20 @@ syscall_set_return_value(struct task_struct *task, struct pt_regs *regs,
static inline void
syscall_get_arguments(struct task_struct *task, struct pt_regs *regs,
unsigned int i, unsigned int n, unsigned long *args)
unsigned long *args)
{
BUG_ON(i + n > 6);
if (i == 0) {
args[0] = regs->orig_a0;
args++;
i++;
n--;
}
memcpy(args, &regs->a1 + i * sizeof(regs->a1), n * sizeof(args[0]));
args[0] = regs->orig_a0;
args++;
memcpy(args, &regs->a1, 5 * sizeof(args[0]));
}
static inline void
syscall_set_arguments(struct task_struct *task, struct pt_regs *regs,
unsigned int i, unsigned int n, const unsigned long *args)
const unsigned long *args)
{
BUG_ON(i + n > 6);
if (i == 0) {
regs->orig_a0 = args[0];
args++;
i++;
n--;
}
memcpy(&regs->a1 + i * sizeof(regs->a1), args, n * sizeof(regs->a0));
regs->orig_a0 = args[0];
args++;
memcpy(&regs->a1, args, 5 * sizeof(regs->a1));
}
static inline int

34
arch/h8300/include/asm/syscall.h
View File

@ -17,34 +17,14 @@ syscall_get_nr(struct task_struct *task, struct pt_regs *regs)
static inline void
syscall_get_arguments(struct task_struct *task, struct pt_regs *regs,
unsigned int i, unsigned int n, unsigned long *args)
unsigned long *args)
{
BUG_ON(i + n > 6);
while (n > 0) {
switch (i) {
case 0:
*args++ = regs->er1;
break;
case 1:
*args++ = regs->er2;
break;
case 2:
*args++ = regs->er3;
break;
case 3:
*args++ = regs->er4;
break;
case 4:
*args++ = regs->er5;
break;
case 5:
*args++ = regs->er6;
break;
}
i++;
n--;
}
*args++ = regs->er1;
*args++ = regs->er2;
*args++ = regs->er3;
*args++ = regs->er4;
*args++ = regs->er5;
*args = regs->er6;
}

4
arch/hexagon/include/asm/syscall.h
View File

@ -37,10 +37,8 @@ static inline long syscall_get_nr(struct task_struct *task,
static inline void syscall_get_arguments(struct task_struct *task,
struct pt_regs *regs,
unsigned int i, unsigned int n,
unsigned long *args)
{
BUG_ON(i + n > 6);
memcpy(args, &(&regs->r00)[i], n * sizeof(args[0]));
memcpy(args, &(&regs->r00)[0], 6 * sizeof(args[0]));
}
#endif

13
arch/ia64/include/asm/syscall.h
View File

@ -59,26 +59,19 @@ static inline void syscall_set_return_value(struct task_struct *task,
}
extern void ia64_syscall_get_set_arguments(struct task_struct *task,
struct pt_regs *regs, unsigned int i, unsigned int n,
unsigned long *args, int rw);
struct pt_regs *regs, unsigned long *args, int rw);
static inline void syscall_get_arguments(struct task_struct *task,
struct pt_regs *regs,
unsigned int i, unsigned int n,
unsigned long *args)
{
BUG_ON(i + n > 6);
ia64_syscall_get_set_arguments(task, regs, i, n, args, 0);
ia64_syscall_get_set_arguments(task, regs, args, 0);
}
static inline void syscall_set_arguments(struct task_struct *task,
struct pt_regs *regs,
unsigned int i, unsigned int n,
unsigned long *args)
{
BUG_ON(i + n > 6);
ia64_syscall_get_set_arguments(task, regs, i, n, args, 1);
ia64_syscall_get_set_arguments(task, regs, args, 1);
}
static inline int syscall_get_arch(void)

7
arch/ia64/kernel/ptrace.c
View File

@ -2179,12 +2179,11 @@ static void syscall_get_set_args_cb(struct unw_frame_info *info, void *data)
}
void ia64_syscall_get_set_arguments(struct task_struct *task,
struct pt_regs *regs, unsigned int i, unsigned int n,
unsigned long *args, int rw)
struct pt_regs *regs, unsigned long *args, int rw)
{
struct syscall_get_set_args data = {
.i = i,
.n = n,
.i = 0,
.n = 6,
.args = args,
.regs = regs,
.rw = rw,

8
arch/microblaze/include/asm/syscall.h
View File

@ -82,18 +82,22 @@ static inline void microblaze_set_syscall_arg(struct pt_regs *regs,
static inline void syscall_get_arguments(struct task_struct *task,
struct pt_regs *regs,
unsigned int i, unsigned int n,
unsigned long *args)
{
unsigned int i = 0;
unsigned int n = 6;
while (n--)
*args++ = microblaze_get_syscall_arg(regs, i++);
}
static inline void syscall_set_arguments(struct task_struct *task,
struct pt_regs *regs,
unsigned int i, unsigned int n,
const unsigned long *args)
{
unsigned int i = 0;
unsigned int n = 6;
while (n--)
microblaze_set_syscall_arg(regs, i++, *args++);
}

8
arch/mips/configs/generic/board-ocelot.config
View File

@ -1,6 +1,10 @@
# require CONFIG_CPU_MIPS32_R2=y
CONFIG_LEGACY_BOARD_OCELOT=y
CONFIG_FIT_IMAGE_FDT_OCELOT=y
CONFIG_BRIDGE=y
CONFIG_GENERIC_PHY=y
CONFIG_MTD=y
CONFIG_MTD_CMDLINE_PARTS=y
@ -19,6 +23,8 @@ CONFIG_SERIAL_8250_CONSOLE=y
CONFIG_SERIAL_OF_PLATFORM=y
CONFIG_NETDEVICES=y
CONFIG_NET_SWITCHDEV=y
CONFIG_NET_DSA=y
CONFIG_MSCC_OCELOT_SWITCH=y
CONFIG_MSCC_OCELOT_SWITCH_OCELOT=y
CONFIG_MDIO_MSCC_MIIM=y
@ -35,6 +41,8 @@ CONFIG_SPI_DESIGNWARE=y
CONFIG_SPI_DW_MMIO=y
CONFIG_SPI_SPIDEV=y
CONFIG_PINCTRL_OCELOT=y
CONFIG_GPIO_SYSFS=y
CONFIG_POWER_RESET=y

3
arch/mips/include/asm/syscall.h
View File

@ -116,9 +116,10 @@ static inline void syscall_set_return_value(struct task_struct *task,
static inline void syscall_get_arguments(struct task_struct *task,
struct pt_regs *regs,
unsigned int i, unsigned int n,
unsigned long *args)
{
unsigned int i = 0;
unsigned int n = 6;
int ret;
/* O32 ABI syscall() */

3
arch/mips/kernel/kgdb.c
View File

@ -33,6 +33,7 @@
#include <asm/processor.h>
#include <asm/sigcontext.h>
#include <linux/uaccess.h>
#include <asm/irq_regs.h>
static struct hard_trap_info {
unsigned char tt; /* Trap type code for MIPS R3xxx and R4xxx */
@ -214,7 +215,7 @@ void kgdb_call_nmi_hook(void *ignored)
old_fs = get_fs();
set_fs(KERNEL_DS);
kgdb_nmicallback(raw_smp_processor_id(), NULL);
kgdb_nmicallback(raw_smp_processor_id(), get_irq_regs());
set_fs(old_fs);
}

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

@ -1419,7 +1419,7 @@ asmlinkage long syscall_trace_enter(struct pt_regs *regs, long syscall)
sd.nr = syscall;
sd.arch = syscall_get_arch();
syscall_get_arguments(current, regs, 0, 6, args);
syscall_get_arguments(current, regs, args);
for (i = 0; i < 6; i++)
sd.args[i] = args[i];
sd.instruction_pointer = KSTK_EIP(current);

3
arch/mips/sgi-ip27/ip27-irq.c
View File

@ -118,7 +118,6 @@ static void shutdown_bridge_irq(struct irq_data *d)
{
struct hub_irq_data *hd = irq_data_get_irq_chip_data(d);
struct bridge_controller *bc;
int pin = hd->pin;
if (!hd)
return;
@ -126,7 +125,7 @@ static void shutdown_bridge_irq(struct irq_data *d)
disable_hub_irq(d);
bc = hd->bc;
bridge_clr(bc, b_int_enable, (1 << pin));
bridge_clr(bc, b_int_enable, (1 << hd->pin));
bridge_read(bc, b_wid_tflush);
}

62
arch/nds32/include/asm/syscall.h
View File

@ -108,81 +108,41 @@ void syscall_set_return_value(struct task_struct *task, struct pt_regs *regs,
* syscall_get_arguments - extract system call parameter values
* @task: task of interest, must be blocked
* @regs: task_pt_regs() of @task
* @i: argument index [0,5]
* @n: number of arguments; n+i must be [1,6].
* @args: array filled with argument values
*
* Fetches @n arguments to the system call starting with the @i'th argument
* (from 0 through 5). Argument @i is stored in @args[0], and so on.
* An arch inline version is probably optimal when @i and @n are constants.
* Fetches 6 arguments to the system call (from 0 through 5). The first
* argument is stored in @args[0], and so on.
*
* It's only valid to call this when @task is stopped for tracing on
* entry to a system call, due to %TIF_SYSCALL_TRACE or %TIF_SYSCALL_AUDIT.
* It's invalid to call this with @i + @n > 6; we only support system calls
* taking up to 6 arguments.
*/
#define SYSCALL_MAX_ARGS 6
void syscall_get_arguments(struct task_struct *task, struct pt_regs *regs,
unsigned int i, unsigned int n, unsigned long *args)
unsigned long *args)
{
if (n == 0)
return;
if (i + n > SYSCALL_MAX_ARGS) {
unsigned long *args_bad = args + SYSCALL_MAX_ARGS - i;
unsigned int n_bad = n + i - SYSCALL_MAX_ARGS;
pr_warning("%s called with max args %d, handling only %d\n",
__func__, i + n, SYSCALL_MAX_ARGS);
memset(args_bad, 0, n_bad * sizeof(args[0]));
memset(args_bad, 0, n_bad * sizeof(args[0]));
}
if (i == 0) {
args[0] = regs->orig_r0;
args++;
i++;
n--;
}
memcpy(args, &regs->uregs[0] + i, n * sizeof(args[0]));
args[0] = regs->orig_r0;
args++;
memcpy(args, &regs->uregs[0] + 1, 5 * sizeof(args[0]));
}
/**
* syscall_set_arguments - change system call parameter value
* @task: task of interest, must be in system call entry tracing
* @regs: task_pt_regs() of @task
* @i: argument index [0,5]
* @n: number of arguments; n+i must be [1,6].
* @args: array of argument values to store
*
* Changes @n arguments to the system call starting with the @i'th argument.
* Argument @i gets value @args[0], and so on.
* An arch inline version is probably optimal when @i and @n are constants.
* Changes 6 arguments to the system call. The first argument gets value
* @args[0], and so on.
*
* It's only valid to call this when @task is stopped for tracing on
* entry to a system call, due to %TIF_SYSCALL_TRACE or %TIF_SYSCALL_AUDIT.
* It's invalid to call this with @i + @n > 6; we only support system calls
* taking up to 6 arguments.
*/
void syscall_set_arguments(struct task_struct *task, struct pt_regs *regs,
unsigned int i, unsigned int n,
const unsigned long *args)
{
if (n == 0)
return;
regs->orig_r0 = args[0];
args++;
if (i + n > SYSCALL_MAX_ARGS) {
pr_warn("%s called with max args %d, handling only %d\n",
__func__, i + n, SYSCALL_MAX_ARGS);
n = SYSCALL_MAX_ARGS - i;
}
if (i == 0) {
regs->orig_r0 = args[0];
args++;
i++;
n--;
}
memcpy(&regs->uregs[0] + i, args, n * sizeof(args[0]));
memcpy(&regs->uregs[0] + 1, args, 5 * sizeof(args[0]));
}
#endif /* _ASM_NDS32_SYSCALL_H */

84
arch/nios2/include/asm/syscall.h
View File

@ -58,81 +58,25 @@ static inline void syscall_set_return_value(struct task_struct *task,
}
static inline void syscall_get_arguments(struct task_struct *task,
struct pt_regs *regs, unsigned int i, unsigned int n,
unsigned long *args)
struct pt_regs *regs, unsigned long *args)
{
BUG_ON(i + n > 6);
switch (i) {
case 0:
if (!n--)
break;
*args++ = regs->r4;
case 1:
if (!n--)
break;
*args++ = regs->r5;
case 2:
if (!n--)
break;
*args++ = regs->r6;
case 3:
if (!n--)
break;
*args++ = regs->r7;
case 4:
if (!n--)
break;
*args++ = regs->r8;
case 5:
if (!n--)
break;
*args++ = regs->r9;
case 6:
if (!n--)
break;
default:
BUG();
}
*args++ = regs->r4;
*args++ = regs->r5;
*args++ = regs->r6;
*args++ = regs->r7;
*args++ = regs->r8;
*args = regs->r9;
}
static inline void syscall_set_arguments(struct task_struct *task,
struct pt_regs *regs, unsigned int i, unsigned int n,
const unsigned long *args)
struct pt_regs *regs, const unsigned long *args)
{
BUG_ON(i + n > 6);
switch (i) {
case 0:
if (!n--)
break;
regs->r4 = *args++;
case 1:
if (!n--)
break;
regs->r5 = *args++;
case 2:
if (!n--)
break;
regs->r6 = *args++;
case 3:
if (!n--)
break;
regs->r7 = *args++;
case 4:
if (!n--)
break;
regs->r8 = *args++;
case 5:
if (!n--)
break;
regs->r9 = *args++;
case 6:
if (!n)
break;
default:
BUG();
}
regs->r4 = *args++;
regs->r5 = *args++;
regs->r6 = *args++;
regs->r7 = *args++;
regs->r8 = *args++;
regs->r9 = *args;
}
#endif

12
arch/openrisc/include/asm/syscall.h
View File

@ -56,20 +56,16 @@ syscall_set_return_value(struct task_struct *task, struct pt_regs *regs,
static inline void
syscall_get_arguments(struct task_struct *task, struct pt_regs *regs,
unsigned int i, unsigned int n, unsigned long *args)
unsigned long *args)
{
BUG_ON(i + n > 6);
memcpy(args, &regs->gpr[3 + i], n * sizeof(args[0]));
memcpy(args, &regs->gpr[3], 6 * sizeof(args[0]));
}
static inline void
syscall_set_arguments(struct task_struct *task, struct pt_regs *regs,
unsigned int i, unsigned int n, const unsigned long *args)
const unsigned long *args)
{
BUG_ON(i + n > 6);
memcpy(&regs->gpr[3 + i], args, n * sizeof(args[0]));
memcpy(&regs->gpr[3], args, 6 * sizeof(args[0]));
}
static inline int syscall_get_arch(void)

5
arch/parisc/include/asm/ptrace.h
View File

@ -22,13 +22,14 @@ unsigned long profile_pc(struct pt_regs *);
static inline unsigned long regs_return_value(struct pt_regs *regs)
{
return regs->gr[20];
return regs->gr[28];
}
static inline void instruction_pointer_set(struct pt_regs *regs,
unsigned long val)
{
regs->iaoq[0] = val;
regs->iaoq[0] = val;
regs->iaoq[1] = val + 4;
}
/* Query offset/name of register from its name/offset */

30
arch/parisc/include/asm/syscall.h
View File

@ -18,29 +18,15 @@ static inline long syscall_get_nr(struct task_struct *tsk,
}
static inline void syscall_get_arguments(struct task_struct *tsk,
struct pt_regs *regs, unsigned int i,
unsigned int n, unsigned long *args)
struct pt_regs *regs,
unsigned long *args)
{
BUG_ON(i);
switch (n) {
case 6:
args[5] = regs->gr[21];
case 5:
args[4] = regs->gr[22];
case 4:
args[3] = regs->gr[23];
case 3:
args[2] = regs->gr[24];
case 2:
args[1] = regs->gr[25];
case 1:
args[0] = regs->gr[26];
case 0:
break;
default:
BUG();
}
args[5] = regs->gr[21];
args[4] = regs->gr[22];
args[3] = regs->gr[23];
args[2] = regs->gr[24];
args[1] = regs->gr[25];
args[0] = regs->gr[26];
}
static inline long syscall_get_return_value(struct task_struct *task,

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

@ -210,12 +210,6 @@ void __cpuidle arch_cpu_idle(void)
static int __init parisc_idle_init(void)
{
const char *marker;
/* check QEMU/SeaBIOS marker in PAGE0 */
marker = (char *) &PAGE0->pad0;
running_on_qemu = (memcmp(marker, "SeaBIOS", 8) == 0);
if (!running_on_qemu)
cpu_idle_poll_ctrl(1);

3
arch/parisc/kernel/setup.c
View File

@ -397,6 +397,9 @@ void __init start_parisc(void)
int ret, cpunum;
struct pdc_coproc_cfg coproc_cfg;
/* check QEMU/SeaBIOS marker in PAGE0 */
running_on_qemu = (memcmp(&PAGE0->pad0, "SeaBIOS", 8) == 0);
cpunum = smp_processor_id();
init_cpu_topology();

15
arch/powerpc/include/asm/syscall.h
View File

@ -65,22 +65,20 @@ static inline void syscall_set_return_value(struct task_struct *task,
static inline void syscall_get_arguments(struct task_struct *task,
struct pt_regs *regs,
unsigned int i, unsigned int n,
unsigned long *args)
{
unsigned long val, mask = -1UL;
BUG_ON(i + n > 6);
unsigned int n = 6;
#ifdef CONFIG_COMPAT
if (test_tsk_thread_flag(task, TIF_32BIT))
mask = 0xffffffff;
#endif
while (n--) {
if (n == 0 && i == 0)
if (n == 0)
val = regs->orig_gpr3;
else
val = regs->gpr[3 + i + n];
val = regs->gpr[3 + n];
args[n] = val & mask;
}
@ -88,15 +86,12 @@ static inline void syscall_get_arguments(struct task_struct *task,
static inline void syscall_set_arguments(struct task_struct *task,
struct pt_regs *regs,
unsigned int i, unsigned int n,
const unsigned long *args)
{
BUG_ON(i + n > 6);
memcpy(&regs->gpr[3 + i], args, n * sizeof(args[0]));
memcpy(&regs->gpr[3], args, 6 * sizeof(args[0]));
/* Also copy the first argument into orig_gpr3 */
if (i == 0 && n > 0)
regs->orig_gpr3 = args[0];
regs->orig_gpr3 = args[0];
}
static inline int syscall_get_arch(void)

7
arch/powerpc/kernel/kvm.c
View File

@ -22,6 +22,7 @@
#include <linux/kvm_host.h>
#include <linux/init.h>
#include <linux/export.h>
#include <linux/kmemleak.h>
#include <linux/kvm_para.h>
#include <linux/slab.h>
#include <linux/of.h>
@ -712,6 +713,12 @@ static void kvm_use_magic_page(void)
static __init void kvm_free_tmp(void)
{
/*
* Inform kmemleak about the hole in the .bss section since the
* corresponding pages will be unmapped with DEBUG_PAGEALLOC=y.
*/
kmemleak_free_part(&kvm_tmp[kvm_tmp_index],
ARRAY_SIZE(kvm_tmp) - kvm_tmp_index);
free_reserved_area(&kvm_tmp[kvm_tmp_index],
&kvm_tmp[ARRAY_SIZE(kvm_tmp)], -1, NULL);
}

2
arch/riscv/include/asm/fixmap.h
View File

@ -26,7 +26,7 @@ enum fixed_addresses {
};
#define FIXADDR_SIZE (__end_of_fixed_addresses * PAGE_SIZE)
#define FIXADDR_TOP (PAGE_OFFSET)
#define FIXADDR_TOP (VMALLOC_START)
#define FIXADDR_START (FIXADDR_TOP - FIXADDR_SIZE)
#define FIXMAP_PAGE_IO PAGE_KERNEL

24
arch/riscv/include/asm/syscall.h
View File

@ -72,32 +72,20 @@ static inline void syscall_set_return_value(struct task_struct *task,
static inline void syscall_get_arguments(struct task_struct *task,
struct pt_regs *regs,
unsigned int i, unsigned int n,
unsigned long *args)
{
BUG_ON(i + n > 6);
if (i == 0) {
args[0] = regs->orig_a0;
args++;
i++;
n--;
}
memcpy(args, &regs->a1 + i * sizeof(regs->a1), n * sizeof(args[0]));
args[0] = regs->orig_a0;
args++;
memcpy(args, &regs->a1, 5 * sizeof(args[0]));
}
static inline void syscall_set_arguments(struct task_struct *task,
struct pt_regs *regs,
unsigned int i, unsigned int n,
const unsigned long *args)
{
BUG_ON(i + n > 6);
if (i == 0) {
regs->orig_a0 = args[0];
args++;
i++;
n--;
}
memcpy(&regs->a1 + i * sizeof(regs->a1), args, n * sizeof(regs->a0));
regs->orig_a0 = args[0];
args++;
memcpy(&regs->a1, args, 5 * sizeof(regs->a1));
}
static inline int syscall_get_arch(void)

2
arch/riscv/include/asm/uaccess.h
View File

@ -300,7 +300,7 @@ do { \
" .balign 4\n" \
"4:\n" \
" li %0, %6\n" \
" jump 2b, %1\n" \
" jump 3b, %1\n" \
" .previous\n" \
" .section __ex_table,\"a\"\n" \
" .balign " RISCV_SZPTR "\n" \

3
arch/riscv/kernel/Makefile
View File

@ -4,7 +4,6 @@
ifdef CONFIG_FTRACE
CFLAGS_REMOVE_ftrace.o = -pg
CFLAGS_REMOVE_setup.o = -pg
endif
extra-y += head.o
@ -29,8 +28,6 @@ obj-y += vdso.o
obj-y += cacheinfo.o
obj-y += vdso/
CFLAGS_setup.o := -mcmodel=medany
obj-$(CONFIG_FPU) += fpu.o
obj-$(CONFIG_SMP) += smpboot.o
obj-$(CONFIG_SMP) += smp.o

2
arch/riscv/kernel/module.c
View File

@ -141,7 +141,7 @@ static int apply_r_riscv_hi20_rela(struct module *me, u32 *location,
{
s32 hi20;
if (IS_ENABLED(CMODEL_MEDLOW)) {
if (IS_ENABLED(CONFIG_CMODEL_MEDLOW)) {
pr_err(
"%s: target %016llx can not be addressed by the 32-bit offset from PC = %p\n",
me->name, (long long)v, location);

8
arch/riscv/kernel/setup.c
View File

@ -48,14 +48,6 @@ struct screen_info screen_info = {
};
#endif
unsigned long va_pa_offset;
EXPORT_SYMBOL(va_pa_offset);
unsigned long pfn_base;
EXPORT_SYMBOL(pfn_base);
unsigned long empty_zero_page[PAGE_SIZE / sizeof(unsigned long)] __page_aligned_bss;
EXPORT_SYMBOL(empty_zero_page);
/* The lucky hart to first increment this variable will boot the other cores */
atomic_t hart_lottery;
unsigned long boot_cpu_hartid;

6
arch/riscv/mm/Makefile
View File

@ -1,3 +1,9 @@
CFLAGS_init.o := -mcmodel=medany
ifdef CONFIG_FTRACE
CFLAGS_REMOVE_init.o = -pg
endif
obj-y += init.o
obj-y += fault.o
obj-y += extable.o

28
arch/riscv/mm/init.c
View File

@ -25,6 +25,10 @@
#include <asm/pgtable.h>
#include <asm/io.h>
unsigned long empty_zero_page[PAGE_SIZE / sizeof(unsigned long)]
__page_aligned_bss;
EXPORT_SYMBOL(empty_zero_page);
static void __init zone_sizes_init(void)
{
unsigned long max_zone_pfns[MAX_NR_ZONES] = { 0, };
@ -143,6 +147,11 @@ void __init setup_bootmem(void)
}
}
unsigned long va_pa_offset;
EXPORT_SYMBOL(va_pa_offset);
unsigned long pfn_base;
EXPORT_SYMBOL(pfn_base);
pgd_t swapper_pg_dir[PTRS_PER_PGD] __page_aligned_bss;
pgd_t trampoline_pg_dir[PTRS_PER_PGD] __initdata __aligned(PAGE_SIZE);
@ -172,6 +181,25 @@ void __set_fixmap(enum fixed_addresses idx, phys_addr_t phys, pgprot_t prot)
}
}
/*
* setup_vm() is called from head.S with MMU-off.
*
* Following requirements should be honoured for setup_vm() to work
* correctly:
* 1) It should use PC-relative addressing for accessing kernel symbols.
* To achieve this we always use GCC cmodel=medany.
* 2) The compiler instrumentation for FTRACE will not work for setup_vm()
* so disable compiler instrumentation when FTRACE is enabled.
*
* Currently, the above requirements are honoured by using custom CFLAGS
* for init.o in mm/Makefile.
*/
#ifndef __riscv_cmodel_medany
#error "setup_vm() is called from head.S before relocate so it should "
"not use absolute addressing."
#endif
asmlinkage void __init setup_vm(void)
{
extern char _start;

28
arch/s390/include/asm/syscall.h
View File

@ -56,40 +56,32 @@ static inline void syscall_set_return_value(struct task_struct *task,
static inline void syscall_get_arguments(struct task_struct *task,
struct pt_regs *regs,
unsigned int i, unsigned int n,
unsigned long *args)
{
unsigned long mask = -1UL;
unsigned int n = 6;
/*
* No arguments for this syscall, there's nothing to do.
*/
if (!n)
return;
BUG_ON(i + n > 6);
#ifdef CONFIG_COMPAT
if (test_tsk_thread_flag(task, TIF_31BIT))
mask = 0xffffffff;
#endif
while (n-- > 0)
if (i + n > 0)
args[n] = regs->gprs[2 + i + n] & mask;
if (i == 0)
args[0] = regs->orig_gpr2 & mask;
if (n > 0)
args[n] = regs->gprs[2 + n] & mask;
args[0] = regs->orig_gpr2 & mask;
}
static inline void syscall_set_arguments(struct task_struct *task,
struct pt_regs *regs,
unsigned int i, unsigned int n,
const unsigned long *args)
{
BUG_ON(i + n > 6);
unsigned int n = 6;
while (n-- > 0)
if (i + n > 0)
regs->gprs[2 + i + n] = args[n];
if (i == 0)
regs->orig_gpr2 = args[0];
if (n > 0)
regs->gprs[2 + n] = args[n];
regs->orig_gpr2 = args[0];
}
static inline int syscall_get_arch(void)

4
arch/sh/boards/of-generic.c
View File

@ -164,10 +164,10 @@ static struct sh_machine_vector __initmv sh_of_generic_mv = {
struct sh_clk_ops;
void __init arch_init_clk_ops(struct sh_clk_ops **ops, int idx)
void __init __weak arch_init_clk_ops(struct sh_clk_ops **ops, int idx)
{
}
void __init plat_irq_setup(void)
void __init __weak plat_irq_setup(void)
{
}

47
arch/sh/include/asm/syscall_32.h
View File

@ -48,51 +48,28 @@ static inline void syscall_set_return_value(struct task_struct *task,
static inline void syscall_get_arguments(struct task_struct *task,
struct pt_regs *regs,
unsigned int i, unsigned int n,
unsigned long *args)
{
/*
* Do this simply for now. If we need to start supporting
* fetching arguments from arbitrary indices, this will need some
* extra logic. Presently there are no in-tree users that depend
* on this behaviour.
*/
BUG_ON(i);
/* Argument pattern is: R4, R5, R6, R7, R0, R1 */
switch (n) {
case 6: args[5] = regs->regs[1];
case 5: args[4] = regs->regs[0];
case 4: args[3] = regs->regs[7];
case 3: args[2] = regs->regs[6];
case 2: args[1] = regs->regs[5];
case 1: args[0] = regs->regs[4];
case 0:
break;
default:
BUG();
}
args[5] = regs->regs[1];
args[4] = regs->regs[0];
args[3] = regs->regs[7];
args[2] = regs->regs[6];
args[1] = regs->regs[5];
args[0] = regs->regs[4];
}
static inline void syscall_set_arguments(struct task_struct *task,
struct pt_regs *regs,
unsigned int i, unsigned int n,
const unsigned long *args)
{
/* Same note as above applies */
BUG_ON(i);
switch (n) {
case 6: regs->regs[1] = args[5];
case 5: regs->regs[0] = args[4];
case 4: regs->regs[7] = args[3];
case 3: regs->regs[6] = args[2];
case 2: regs->regs[5] = args[1];
case 1: regs->regs[4] = args[0];
break;
default:
BUG();
}
regs->regs[1] = args[5];
regs->regs[0] = args[4];
regs->regs[7] = args[3];
regs->regs[6] = args[2];
regs->regs[5] = args[1];
regs->regs[4] = args[0];
}
static inline int syscall_get_arch(void)

8
arch/sh/include/asm/syscall_64.h
View File

@ -47,20 +47,16 @@ static inline void syscall_set_return_value(struct task_struct *task,
static inline void syscall_get_arguments(struct task_struct *task,
struct pt_regs *regs,
unsigned int i, unsigned int n,
unsigned long *args)
{
BUG_ON(i + n > 6);
memcpy(args, &regs->regs[2 + i], n * sizeof(args[0]));
memcpy(args, &regs->regs[2], 6 * sizeof(args[0]));
}
static inline void syscall_set_arguments(struct task_struct *task,
struct pt_regs *regs,
unsigned int i, unsigned int n,
const unsigned long *args)
{
BUG_ON(i + n > 6);
memcpy(&regs->regs[2 + i], args, n * sizeof(args[0]));
memcpy(&regs->regs[2], args, 6 * sizeof(args[0]));
}
static inline int syscall_get_arch(void)

11
arch/sparc/include/asm/syscall.h
View File

@ -96,11 +96,11 @@ static inline void syscall_set_return_value(struct task_struct *task,
static inline void syscall_get_arguments(struct task_struct *task,
struct pt_regs *regs,
unsigned int i, unsigned int n,
unsigned long *args)
{
int zero_extend = 0;
unsigned int j;
unsigned int n = 6;
#ifdef CONFIG_SPARC64
if (test_tsk_thread_flag(task, TIF_32BIT))
@ -108,7 +108,7 @@ static inline void syscall_get_arguments(struct task_struct *task,
#endif
for (j = 0; j < n; j++) {
unsigned long val = regs->u_regs[UREG_I0 + i + j];
unsigned long val = regs->u_regs[UREG_I0 + j];
if (zero_extend)
args[j] = (u32) val;
@ -119,13 +119,12 @@ static inline void syscall_get_arguments(struct task_struct *task,
static inline void syscall_set_arguments(struct task_struct *task,
struct pt_regs *regs,
unsigned int i, unsigned int n,
const unsigned long *args)
{
unsigned int j;
unsigned int i;
for (j = 0; j < n; j++)
regs->u_regs[UREG_I0 + i + j] = args[j];
for (i = 0; i < 6; i++)
regs->u_regs[UREG_I0 + i] = args[i];
}
static inline int syscall_get_arch(void)

78
arch/um/include/asm/syscall-generic.h
View File

@ -53,84 +53,30 @@ static inline void syscall_set_return_value(struct task_struct *task,
static inline void syscall_get_arguments(struct task_struct *task,
struct pt_regs *regs,
unsigned int i, unsigned int n,
unsigned long *args)
{
const struct uml_pt_regs *r = &regs->regs;
switch (i) {
case 0:
if (!n--)
break;
*args++ = UPT_SYSCALL_ARG1(r);
case 1:
if (!n--)
break;
*args++ = UPT_SYSCALL_ARG2(r);
case 2:
if (!n--)
break;
*args++ = UPT_SYSCALL_ARG3(r);
case 3:
if (!n--)
break;
*args++ = UPT_SYSCALL_ARG4(r);
case 4:
if (!n--)
break;
*args++ = UPT_SYSCALL_ARG5(r);
case 5:
if (!n--)
break;
*args++ = UPT_SYSCALL_ARG6(r);
case 6:
if (!n--)
break;
default:
BUG();
break;
}
*args++ = UPT_SYSCALL_ARG1(r);
*args++ = UPT_SYSCALL_ARG2(r);
*args++ = UPT_SYSCALL_ARG3(r);
*args++ = UPT_SYSCALL_ARG4(r);
*args++ = UPT_SYSCALL_ARG5(r);
*args = UPT_SYSCALL_ARG6(r);
}
static inline void syscall_set_arguments(struct task_struct *task,
struct pt_regs *regs,
unsigned int i, unsigned int n,
const unsigned long *args)
{
struct uml_pt_regs *r = &regs->regs;
switch (i) {
case 0:
if (!n--)
break;
UPT_SYSCALL_ARG1(r) = *args++;
case 1:
if (!n--)
break;
UPT_SYSCALL_ARG2(r) = *args++;
case 2:
if (!n--)
break;
UPT_SYSCALL_ARG3(r) = *args++;
case 3:
if (!n--)
break;
UPT_SYSCALL_ARG4(r) = *args++;
case 4:
if (!n--)
break;
UPT_SYSCALL_ARG5(r) = *args++;
case 5:
if (!n--)
break;
UPT_SYSCALL_ARG6(r) = *args++;
case 6:
if (!n--)
break;
default:
BUG();
break;
}
UPT_SYSCALL_ARG1(r) = *args++;
UPT_SYSCALL_ARG2(r) = *args++;
UPT_SYSCALL_ARG3(r) = *args++;
UPT_SYSCALL_ARG4(r) = *args++;
UPT_SYSCALL_ARG5(r) = *args++;
UPT_SYSCALL_ARG6(r) = *args;
}
/* See arch/x86/um/asm/syscall.h for syscall_get_arch() definition. */

142
arch/x86/include/asm/syscall.h
View File

@ -91,11 +91,9 @@ static inline void syscall_set_return_value(struct task_struct *task,
static inline void syscall_get_arguments(struct task_struct *task,
struct pt_regs *regs,
unsigned int i, unsigned int n,
unsigned long *args)
{
BUG_ON(i + n > 6);
memcpy(args, &regs->bx + i, n * sizeof(args[0]));
memcpy(args, &regs->bx, 6 * sizeof(args[0]));
}
static inline void syscall_set_arguments(struct task_struct *task,
@ -116,124 +114,50 @@ static inline int syscall_get_arch(void)
static inline void syscall_get_arguments(struct task_struct *task,
struct pt_regs *regs,
unsigned int i, unsigned int n,
unsigned long *args)
{
# ifdef CONFIG_IA32_EMULATION
if (task->thread_info.status & TS_COMPAT)
switch (i) {
case 0:
if (!n--) break;
*args++ = regs->bx;
case 1:
if (!n--) break;
*args++ = regs->cx;
case 2:
if (!n--) break;
*args++ = regs->dx;
case 3:
if (!n--) break;
*args++ = regs->si;
case 4:
if (!n--) break;
*args++ = regs->di;
case 5:
if (!n--) break;
*args++ = regs->bp;
case 6:
if (!n--) break;
default:
BUG();
break;
}
else
if (task->thread_info.status & TS_COMPAT) {
*args++ = regs->bx;
*args++ = regs->cx;
*args++ = regs->dx;
*args++ = regs->si;
*args++ = regs->di;
*args = regs->bp;
} else
# endif
switch (i) {
case 0:
if (!n--) break;
*args++ = regs->di;
case 1:
if (!n--) break;
*args++ = regs->si;
case 2:
if (!n--) break;
*args++ = regs->dx;
case 3:
if (!n--) break;
*args++ = regs->r10;
case 4:
if (!n--) break;
*args++ = regs->r8;
case 5:
if (!n--) break;
*args++ = regs->r9;
case 6:
if (!n--) break;
default:
BUG();
break;
}
{
*args++ = regs->di;
*args++ = regs->si;
*args++ = regs->dx;
*args++ = regs->r10;
*args++ = regs->r8;
*args = regs->r9;
}
}
static inline void syscall_set_arguments(struct task_struct *task,
struct pt_regs *regs,
unsigned int i, unsigned int n,
const unsigned long *args)
{
# ifdef CONFIG_IA32_EMULATION
if (task->thread_info.status & TS_COMPAT)
switch (i) {
case 0:
if (!n--) break;
regs->bx = *args++;
case 1:
if (!n--) break;
regs->cx = *args++;
case 2:
if (!n--) break;
regs->dx = *args++;
case 3:
if (!n--) break;
regs->si = *args++;
case 4:
if (!n--) break;
regs->di = *args++;
case 5:
if (!n--) break;
regs->bp = *args++;
case 6:
if (!n--) break;
default:
BUG();
break;
}
else
if (task->thread_info.status & TS_COMPAT) {
regs->bx = *args++;
regs->cx = *args++;
regs->dx = *args++;
regs->si = *args++;
regs->di = *args++;
regs->bp = *args;
} else
# endif
switch (i) {
case 0:
if (!n--) break;
regs->di = *args++;
case 1:
if (!n--) break;
regs->si = *args++;
case 2:
if (!n--) break;
regs->dx = *args++;
case 3:
if (!n--) break;
regs->r10 = *args++;
case 4:
if (!n--) break;
regs->r8 = *args++;
case 5:
if (!n--) break;
regs->r9 = *args++;
case 6:
if (!n--) break;
default:
BUG();
break;
}
{
regs->di = *args++;
regs->si = *args++;
regs->dx = *args++;
regs->r10 = *args++;
regs->r8 = *args++;
regs->r9 = *args;
}
}
static inline int syscall_get_arch(void)

3
arch/x86/include/asm/xen/hypercall.h
View File

@ -206,6 +206,9 @@ xen_single_call(unsigned int call,
__HYPERCALL_DECLS;
__HYPERCALL_5ARG(a1, a2, a3, a4, a5);
if (call >= PAGE_SIZE / sizeof(hypercall_page[0]))
return -EINVAL;
asm volatile(CALL_NOSPEC
: __HYPERCALL_5PARAM
: [thunk_target] "a" (&hypercall_page[call])

22
arch/x86/kvm/svm.c
View File

@ -6422,11 +6422,11 @@ e_free:
return ret;
}
static int get_num_contig_pages(int idx, struct page **inpages,
unsigned long npages)
static unsigned long get_num_contig_pages(unsigned long idx,
struct page **inpages, unsigned long npages)
{
unsigned long paddr, next_paddr;
int i = idx + 1, pages = 1;
unsigned long i = idx + 1, pages = 1;
/* find the number of contiguous pages starting from idx */
paddr = __sme_page_pa(inpages[idx]);
@ -6445,12 +6445,12 @@ static int get_num_contig_pages(int idx, struct page **inpages,
static int sev_launch_update_data(struct kvm *kvm, struct kvm_sev_cmd *argp)
{
unsigned long vaddr, vaddr_end, next_vaddr, npages, size;
unsigned long vaddr, vaddr_end, next_vaddr, npages, pages, size, i;
struct kvm_sev_info *sev = &to_kvm_svm(kvm)->sev_info;
struct kvm_sev_launch_update_data params;
struct sev_data_launch_update_data *data;
struct page **inpages;
int i, ret, pages;
int ret;
if (!sev_guest(kvm))
return -ENOTTY;
@ -6799,7 +6799,8 @@ static int sev_dbg_crypt(struct kvm *kvm, struct kvm_sev_cmd *argp, bool dec)
struct page **src_p, **dst_p;
struct kvm_sev_dbg debug;
unsigned long n;
int ret, size;
unsigned int size;
int ret;
if (!sev_guest(kvm))
return -ENOTTY;
@ -6807,6 +6808,11 @@ static int sev_dbg_crypt(struct kvm *kvm, struct kvm_sev_cmd *argp, bool dec)
if (copy_from_user(&debug, (void __user *)(uintptr_t)argp->data, sizeof(debug)))
return -EFAULT;
if (!debug.len || debug.src_uaddr + debug.len < debug.src_uaddr)
return -EINVAL;
if (!debug.dst_uaddr)
return -EINVAL;
vaddr = debug.src_uaddr;
size = debug.len;
vaddr_end = vaddr + size;
@ -6857,8 +6863,8 @@ static int sev_dbg_crypt(struct kvm *kvm, struct kvm_sev_cmd *argp, bool dec)
dst_vaddr,
len, &argp->error);
sev_unpin_memory(kvm, src_p, 1);
sev_unpin_memory(kvm, dst_p, 1);
sev_unpin_memory(kvm, src_p, n);
sev_unpin_memory(kvm, dst_p, n);
if (ret)
goto err;

74
arch/x86/kvm/vmx/nested.c
View File

@ -500,6 +500,17 @@ static void nested_vmx_disable_intercept_for_msr(unsigned long *msr_bitmap_l1,
}
}
static inline void enable_x2apic_msr_intercepts(unsigned long *msr_bitmap) {
int msr;
for (msr = 0x800; msr <= 0x8ff; msr += BITS_PER_LONG) {
unsigned word = msr / BITS_PER_LONG;
msr_bitmap[word] = ~0;
msr_bitmap[word + (0x800 / sizeof(long))] = ~0;
}
}
/*
* Merge L0's and L1's MSR bitmap, return false to indicate that
* we do not use the hardware.
@ -541,39 +552,44 @@ static inline bool nested_vmx_prepare_msr_bitmap(struct kvm_vcpu *vcpu,
return false;
msr_bitmap_l1 = (unsigned long *)kmap(page);
if (nested_cpu_has_apic_reg_virt(vmcs12)) {
/*
* L0 need not intercept reads for MSRs between 0x800 and 0x8ff, it
* just lets the processor take the value from the virtual-APIC page;
* take those 256 bits directly from the L1 bitmap.
*/
for (msr = 0x800; msr <= 0x8ff; msr += BITS_PER_LONG) {
unsigned word = msr / BITS_PER_LONG;
msr_bitmap_l0[word] = msr_bitmap_l1[word];
msr_bitmap_l0[word + (0x800 / sizeof(long))] = ~0;
}
} else {
for (msr = 0x800; msr <= 0x8ff; msr += BITS_PER_LONG) {
unsigned word = msr / BITS_PER_LONG;
msr_bitmap_l0[word] = ~0;
msr_bitmap_l0[word + (0x800 / sizeof(long))] = ~0;
}
}
nested_vmx_disable_intercept_for_msr(
msr_bitmap_l1, msr_bitmap_l0,
X2APIC_MSR(APIC_TASKPRI),
MSR_TYPE_W);
/*
* To keep the control flow simple, pay eight 8-byte writes (sixteen
* 4-byte writes on 32-bit systems) up front to enable intercepts for
* the x2APIC MSR range and selectively disable them below.
*/
enable_x2apic_msr_intercepts(msr_bitmap_l0);
if (nested_cpu_has_virt_x2apic_mode(vmcs12)) {
if (nested_cpu_has_apic_reg_virt(vmcs12)) {
/*
* L0 need not intercept reads for MSRs between 0x800
* and 0x8ff, it just lets the processor take the value
* from the virtual-APIC page; take those 256 bits
* directly from the L1 bitmap.
*/
for (msr = 0x800; msr <= 0x8ff; msr += BITS_PER_LONG) {
unsigned word = msr / BITS_PER_LONG;
msr_bitmap_l0[word] = msr_bitmap_l1[word];
}
}
if (nested_cpu_has_vid(vmcs12)) {
nested_vmx_disable_intercept_for_msr(
msr_bitmap_l1, msr_bitmap_l0,
X2APIC_MSR(APIC_EOI),
MSR_TYPE_W);
nested_vmx_disable_intercept_for_msr(
msr_bitmap_l1, msr_bitmap_l0,
X2APIC_MSR(APIC_SELF_IPI),
MSR_TYPE_W);
X2APIC_MSR(APIC_TASKPRI),
MSR_TYPE_R | MSR_TYPE_W);
if (nested_cpu_has_vid(vmcs12)) {
nested_vmx_disable_intercept_for_msr(
msr_bitmap_l1, msr_bitmap_l0,
X2APIC_MSR(APIC_EOI),
MSR_TYPE_W);
nested_vmx_disable_intercept_for_msr(
msr_bitmap_l1, msr_bitmap_l0,
X2APIC_MSR(APIC_SELF_IPI),
MSR_TYPE_W);
}
}
if (spec_ctrl)

21
arch/xtensa/include/asm/processor.h
View File

@ -187,15 +187,18 @@ struct thread_struct {
/* Clearing a0 terminates the backtrace. */
#define start_thread(regs, new_pc, new_sp) \
memset(regs, 0, sizeof(*regs)); \
regs->pc = new_pc; \
regs->ps = USER_PS_VALUE; \
regs->areg[1] = new_sp; \
regs->areg[0] = 0; \
regs->wmask = 1; \
regs->depc = 0; \
regs->windowbase = 0; \
regs->windowstart = 1;
do { \
memset((regs), 0, sizeof(*(regs))); \
(regs)->pc = (new_pc); \
(regs)->ps = USER_PS_VALUE; \
(regs)->areg[1] = (new_sp); \
(regs)->areg[0] = 0; \
(regs)->wmask = 1; \
(regs)->depc = 0; \
(regs)->windowbase = 0; \
(regs)->windowstart = 1; \
(regs)->syscall = NO_SYSCALL; \
} while (0)
/* Forward declaration */
struct task_struct;

33
arch/xtensa/include/asm/syscall.h
View File

@ -59,45 +59,24 @@ static inline void syscall_set_return_value(struct task_struct *task,
static inline void syscall_get_arguments(struct task_struct *task,
struct pt_regs *regs,
unsigned int i, unsigned int n,
unsigned long *args)
{
static const unsigned int reg[] = XTENSA_SYSCALL_ARGUMENT_REGS;
unsigned int j;
unsigned int i;
if (n == 0)
return;
WARN_ON_ONCE(i + n > SYSCALL_MAX_ARGS);
for (j = 0; j < n; ++j) {
if (i + j < SYSCALL_MAX_ARGS)
args[j] = regs->areg[reg[i + j]];
else
args[j] = 0;
}
for (i = 0; i < 6; ++i)
args[i] = regs->areg[reg[i]];
}
static inline void syscall_set_arguments(struct task_struct *task,
struct pt_regs *regs,
unsigned int i, unsigned int n,
const unsigned long *args)
{
static const unsigned int reg[] = XTENSA_SYSCALL_ARGUMENT_REGS;
unsigned int j;
unsigned int i;
if (n == 0)
return;
if (WARN_ON_ONCE(i + n > SYSCALL_MAX_ARGS)) {
if (i < SYSCALL_MAX_ARGS)
n = SYSCALL_MAX_ARGS - i;
else
return;
}
for (j = 0; j < n; ++j)
regs->areg[reg[i + j]] = args[j];
for (i = 0; i < 6; ++i)
regs->areg[reg[i]] = args[i];
}
asmlinkage long xtensa_rt_sigreturn(struct pt_regs*);

6
arch/xtensa/kernel/entry.S
View File

@ -1860,6 +1860,8 @@ ENTRY(system_call)
l32i a7, a2, PT_SYSCALL
1:
s32i a7, a1, 4
/* syscall = sys_call_table[syscall_nr] */
movi a4, sys_call_table
@ -1893,8 +1895,12 @@ ENTRY(system_call)
retw
1:
l32i a4, a1, 4
l32i a3, a2, PT_SYSCALL
s32i a4, a2, PT_SYSCALL
mov a6, a2
call4 do_syscall_trace_leave
s32i a3, a2, PT_SYSCALL
retw
ENDPROC(system_call)

6
arch/xtensa/kernel/stacktrace.c
View File

@ -253,10 +253,14 @@ static int return_address_cb(struct stackframe *frame, void *data)
return 1;
}
/*
* level == 0 is for the return address from the caller of this function,
* not from this function itself.
*/
unsigned long return_address(unsigned level)
{
struct return_addr_data r = {
.skip = level + 1,
.skip = level,
};
walk_stackframe(stack_pointer(NULL), return_address_cb, &r);
return r.addr;

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

@ -33,7 +33,7 @@ static void * __init init_pmd(unsigned long vaddr, unsigned long n_pages)
pte = memblock_alloc_low(n_pages * sizeof(pte_t), PAGE_SIZE);
if (!pte)
panic("%s: Failed to allocate %zu bytes align=%lx\n",
panic("%s: Failed to allocate %lu bytes align=%lx\n",
__func__, n_pages * sizeof(pte_t), PAGE_SIZE);
for (i = 0; i < n_pages; ++i)

2
block/bfq-iosched.c
View File

@ -674,7 +674,7 @@ static bool bfq_symmetric_scenario(struct bfq_data *bfqd)
* at least two nodes.
*/
return !(varied_queue_weights || multiple_classes_busy
#ifdef BFQ_GROUP_IOSCHED_ENABLED
#ifdef CONFIG_BFQ_GROUP_IOSCHED
|| bfqd->num_groups_with_pending_reqs > 0
#endif
);

2
block/bfq-wf2q.c
View File

@ -1012,7 +1012,7 @@ static void __bfq_activate_entity(struct bfq_entity *entity,
entity->on_st = true;
}
#ifdef BFQ_GROUP_IOSCHED_ENABLED
#ifdef CONFIG_BFQ_GROUP_IOSCHED
if (!bfq_entity_to_bfqq(entity)) { /* bfq_group */
struct bfq_group *bfqg =
container_of(entity, struct bfq_group, entity);

4
block/blk-core.c
View File

@ -1245,8 +1245,6 @@ static int blk_cloned_rq_check_limits(struct request_queue *q,
*/
blk_status_t blk_insert_cloned_request(struct request_queue *q, struct request *rq)
{
blk_qc_t unused;
if (blk_cloned_rq_check_limits(q, rq))
return BLK_STS_IOERR;
@ -1262,7 +1260,7 @@ blk_status_t blk_insert_cloned_request(struct request_queue *q, struct request *
* bypass a potential scheduler on the bottom device for
* insert.
*/
return blk_mq_try_issue_directly(rq->mq_hctx, rq, &unused, true, true);
return blk_mq_request_issue_directly(rq, true);
}
EXPORT_SYMBOL_GPL(blk_insert_cloned_request);

8
block/blk-mq-sched.c
View File

@ -423,10 +423,12 @@ void blk_mq_sched_insert_requests(struct blk_mq_hw_ctx *hctx,
* busy in case of 'none' scheduler, and this way may save
* us one extra enqueue & dequeue to sw queue.
*/
if (!hctx->dispatch_busy && !e && !run_queue_async)
if (!hctx->dispatch_busy && !e && !run_queue_async) {
blk_mq_try_issue_list_directly(hctx, list);
else
blk_mq_insert_requests(hctx, ctx, list);
if (list_empty(list))
return;
}
blk_mq_insert_requests(hctx, ctx, list);
}
blk_mq_run_hw_queue(hctx, run_queue_async);

129
block/blk-mq.c
View File

@ -1711,11 +1711,12 @@ void blk_mq_flush_plug_list(struct blk_plug *plug, bool from_schedule)
unsigned int depth;
list_splice_init(&plug->mq_list, &list);
plug->rq_count = 0;
if (plug->rq_count > 2 && plug->multiple_queues)
list_sort(NULL, &list, plug_rq_cmp);
plug->rq_count = 0;
this_q = NULL;
this_hctx = NULL;
this_ctx = NULL;
@ -1800,74 +1801,76 @@ static blk_status_t __blk_mq_issue_directly(struct blk_mq_hw_ctx *hctx,
return ret;
}
blk_status_t blk_mq_try_issue_directly(struct blk_mq_hw_ctx *hctx,
static blk_status_t __blk_mq_try_issue_directly(struct blk_mq_hw_ctx *hctx,
struct request *rq,
blk_qc_t *cookie,
bool bypass, bool last)
bool bypass_insert, bool last)
{
struct request_queue *q = rq->q;
bool run_queue = true;
blk_status_t ret = BLK_STS_RESOURCE;
int srcu_idx;
bool force = false;
hctx_lock(hctx, &srcu_idx);
/*
* hctx_lock is needed before checking quiesced flag.
* RCU or SRCU read lock is needed before checking quiesced flag.
*
* When queue is stopped or quiesced, ignore 'bypass', insert
* and return BLK_STS_OK to caller, and avoid driver to try to
* dispatch again.
* When queue is stopped or quiesced, ignore 'bypass_insert' from
* blk_mq_request_issue_directly(), and return BLK_STS_OK to caller,
* and avoid driver to try to dispatch again.
*/
if (unlikely(blk_mq_hctx_stopped(hctx) || blk_queue_quiesced(q))) {
if (blk_mq_hctx_stopped(hctx) || blk_queue_quiesced(q)) {
run_queue = false;
bypass = false;
goto out_unlock;
bypass_insert = false;
goto insert;
}
if (unlikely(q->elevator && !bypass))
goto out_unlock;
if (q->elevator && !bypass_insert)
goto insert;
if (!blk_mq_get_dispatch_budget(hctx))
goto out_unlock;
goto insert;
if (!blk_mq_get_driver_tag(rq)) {
blk_mq_put_dispatch_budget(hctx);
goto out_unlock;
goto insert;
}
/*
* Always add a request that has been through
*.queue_rq() to the hardware dispatch list.
*/
force = true;
ret = __blk_mq_issue_directly(hctx, rq, cookie, last);
out_unlock:
return __blk_mq_issue_directly(hctx, rq, cookie, last);
insert:
if (bypass_insert)
return BLK_STS_RESOURCE;
blk_mq_request_bypass_insert(rq, run_queue);
return BLK_STS_OK;
}
static void blk_mq_try_issue_directly(struct blk_mq_hw_ctx *hctx,
struct request *rq, blk_qc_t *cookie)
{
blk_status_t ret;
int srcu_idx;
might_sleep_if(hctx->flags & BLK_MQ_F_BLOCKING);
hctx_lock(hctx, &srcu_idx);
ret = __blk_mq_try_issue_directly(hctx, rq, cookie, false, true);
if (ret == BLK_STS_RESOURCE || ret == BLK_STS_DEV_RESOURCE)
blk_mq_request_bypass_insert(rq, true);
else if (ret != BLK_STS_OK)
blk_mq_end_request(rq, ret);
hctx_unlock(hctx, srcu_idx);
}
blk_status_t blk_mq_request_issue_directly(struct request *rq, bool last)
{
blk_status_t ret;
int srcu_idx;
blk_qc_t unused_cookie;
struct blk_mq_hw_ctx *hctx = rq->mq_hctx;
hctx_lock(hctx, &srcu_idx);
ret = __blk_mq_try_issue_directly(hctx, rq, &unused_cookie, true, last);
hctx_unlock(hctx, srcu_idx);
switch (ret) {
case BLK_STS_OK:
break;
case BLK_STS_DEV_RESOURCE:
case BLK_STS_RESOURCE:
if (force) {
blk_mq_request_bypass_insert(rq, run_queue);
/*
* We have to return BLK_STS_OK for the DM
* to avoid livelock. Otherwise, we return
* the real result to indicate whether the
* request is direct-issued successfully.
*/
ret = bypass ? BLK_STS_OK : ret;
} else if (!bypass) {
blk_mq_sched_insert_request(rq, false,
run_queue, false);
}
break;
default:
if (!bypass)
blk_mq_end_request(rq, ret);
break;
}
return ret;
}
@ -1875,20 +1878,22 @@ out_unlock:
void blk_mq_try_issue_list_directly(struct blk_mq_hw_ctx *hctx,
struct list_head *list)
{
blk_qc_t unused;
blk_status_t ret = BLK_STS_OK;
while (!list_empty(list)) {
blk_status_t ret;
struct request *rq = list_first_entry(list, struct request,
queuelist);
list_del_init(&rq->queuelist);
if (ret == BLK_STS_OK)
ret = blk_mq_try_issue_directly(hctx, rq, &unused,
false,
ret = blk_mq_request_issue_directly(rq, list_empty(list));
if (ret != BLK_STS_OK) {
if (ret == BLK_STS_RESOURCE ||
ret == BLK_STS_DEV_RESOURCE) {
blk_mq_request_bypass_insert(rq,
list_empty(list));
else
blk_mq_sched_insert_request(rq, false, true, false);
break;
}
blk_mq_end_request(rq, ret);
}
}
/*
@ -1896,7 +1901,7 @@ void blk_mq_try_issue_list_directly(struct blk_mq_hw_ctx *hctx,
* the driver there was more coming, but that turned out to
* be a lie.
*/
if (ret != BLK_STS_OK && hctx->queue->mq_ops->commit_rqs)
if (!list_empty(list) && hctx->queue->mq_ops->commit_rqs)
hctx->queue->mq_ops->commit_rqs(hctx);
}
@ -2003,19 +2008,21 @@ static blk_qc_t blk_mq_make_request(struct request_queue *q, struct bio *bio)
plug->rq_count--;
}
blk_add_rq_to_plug(plug, rq);
trace_block_plug(q);
blk_mq_put_ctx(data.ctx);
if (same_queue_rq) {
data.hctx = same_queue_rq->mq_hctx;
trace_block_unplug(q, 1, true);
blk_mq_try_issue_directly(data.hctx, same_queue_rq,
&cookie, false, true);
&cookie);
}
} else if ((q->nr_hw_queues > 1 && is_sync) || (!q->elevator &&
!data.hctx->dispatch_busy)) {
blk_mq_put_ctx(data.ctx);
blk_mq_bio_to_request(rq, bio);
blk_mq_try_issue_directly(data.hctx, rq, &cookie, false, true);
blk_mq_try_issue_directly(data.hctx, rq, &cookie);
} else {
blk_mq_put_ctx(data.ctx);
blk_mq_bio_to_request(rq, bio);
@ -2332,7 +2339,7 @@ static int blk_mq_init_hctx(struct request_queue *q,
return 0;
free_fq:
kfree(hctx->fq);
blk_free_flush_queue(hctx->fq);
exit_hctx:
if (set->ops->exit_hctx)
set->ops->exit_hctx(hctx, hctx_idx);

6
block/blk-mq.h
View File

@ -70,10 +70,8 @@ void blk_mq_request_bypass_insert(struct request *rq, bool run_queue);
void blk_mq_insert_requests(struct blk_mq_hw_ctx *hctx, struct blk_mq_ctx *ctx,
struct list_head *list);
blk_status_t blk_mq_try_issue_directly(struct blk_mq_hw_ctx *hctx,
struct request *rq,
blk_qc_t *cookie,
bool bypass, bool last);
/* Used by blk_insert_cloned_request() to issue request directly */
blk_status_t blk_mq_request_issue_directly(struct request *rq, bool last);
void blk_mq_try_issue_list_directly(struct blk_mq_hw_ctx *hctx,
struct list_head *list);

6
drivers/acpi/acpica/evgpe.c
View File

@ -81,8 +81,12 @@ acpi_status acpi_ev_enable_gpe(struct acpi_gpe_event_info *gpe_event_info)
ACPI_FUNCTION_TRACE(ev_enable_gpe);
/* Enable the requested GPE */
/* Clear the GPE status */
status = acpi_hw_clear_gpe(gpe_event_info);
if (ACPI_FAILURE(status))
return_ACPI_STATUS(status);
/* Enable the requested GPE */
status = acpi_hw_low_set_gpe(gpe_event_info, ACPI_GPE_ENABLE);
return_ACPI_STATUS(status);
}

5
drivers/block/null_blk_main.c
View File

@ -1748,6 +1748,11 @@ static int __init null_init(void)
return -EINVAL;
}
if (g_home_node != NUMA_NO_NODE && g_home_node >= nr_online_nodes) {
pr_err("null_blk: invalid home_node value\n");
g_home_node = NUMA_NO_NODE;
}
if (g_queue_mode == NULL_Q_RQ) {
pr_err("null_blk: legacy IO path no longer available\n");
return -EINVAL;

14
drivers/block/paride/pcd.c
View File

@ -314,6 +314,7 @@ static void pcd_init_units(void)
disk->queue = blk_mq_init_sq_queue(&cd->tag_set, &pcd_mq_ops,
1, BLK_MQ_F_SHOULD_MERGE);
if (IS_ERR(disk->queue)) {
put_disk(disk);
disk->queue = NULL;
continue;
}
@ -750,6 +751,8 @@ static int pcd_detect(void)
printk("%s: No CD-ROM drive found\n", name);
for (unit = 0, cd = pcd; unit < PCD_UNITS; unit++, cd++) {
if (!cd->disk)
continue;
blk_cleanup_queue(cd->disk->queue);
cd->disk->queue = NULL;
blk_mq_free_tag_set(&cd->tag_set);
@ -1010,8 +1013,14 @@ static int __init pcd_init(void)
pcd_probe_capabilities();
if (register_blkdev(major, name)) {
for (unit = 0, cd = pcd; unit < PCD_UNITS; unit++, cd++)
for (unit = 0, cd = pcd; unit < PCD_UNITS; unit++, cd++) {
if (!cd->disk)
continue;
blk_cleanup_queue(cd->disk->queue);
blk_mq_free_tag_set(&cd->tag_set);
put_disk(cd->disk);
}
return -EBUSY;
}
@ -1032,6 +1041,9 @@ static void __exit pcd_exit(void)
int unit;
for (unit = 0, cd = pcd; unit < PCD_UNITS; unit++, cd++) {
if (!cd->disk)
continue;
if (cd->present) {
del_gendisk(cd->disk);
pi_release(cd->pi);

12
drivers/block/paride/pf.c
View File

@ -762,6 +762,8 @@ static int pf_detect(void)
printk("%s: No ATAPI disk detected\n", name);
for (pf = units, unit = 0; unit < PF_UNITS; pf++, unit++) {
if (!pf->disk)
continue;
blk_cleanup_queue(pf->disk->queue);
pf->disk->queue = NULL;
blk_mq_free_tag_set(&pf->tag_set);
@ -1029,8 +1031,13 @@ static int __init pf_init(void)
pf_busy = 0;
if (register_blkdev(major, name)) {
for (pf = units, unit = 0; unit < PF_UNITS; pf++, unit++)
for (pf = units, unit = 0; unit < PF_UNITS; pf++, unit++) {
if (!pf->disk)
continue;
blk_cleanup_queue(pf->disk->queue);
blk_mq_free_tag_set(&pf->tag_set);
put_disk(pf->disk);
}
return -EBUSY;
}
@ -1051,6 +1058,9 @@ static void __exit pf_exit(void)
int unit;
unregister_blkdev(major, name);
for (pf = units, unit = 0; unit < PF_UNITS; pf++, unit++) {
if (!pf->disk)
continue;
if (pf->present)
del_gendisk(pf->disk);

2
drivers/block/xsysace.c
View File

@ -1090,6 +1090,8 @@ static int ace_setup(struct ace_device *ace)
return 0;
err_read:
/* prevent double queue cleanup */
ace->gd->queue = NULL;
put_disk(ace->gd);
err_alloc_disk:
blk_cleanup_queue(ace->queue);

2
drivers/bluetooth/btusb.c
View File

@ -2942,6 +2942,7 @@ static int btusb_config_oob_wake(struct hci_dev *hdev)
return 0;
}
irq_set_status_flags(irq, IRQ_NOAUTOEN);
ret = devm_request_irq(&hdev->dev, irq, btusb_oob_wake_handler,
0, "OOB Wake-on-BT", data);
if (ret) {
@ -2956,7 +2957,6 @@ static int btusb_config_oob_wake(struct hci_dev *hdev)
}
data->oob_wake_irq = irq;
disable_irq(irq);
bt_dev_info(hdev, "OOB Wake-on-BT configured at IRQ %u", irq);
return 0;
}

2
drivers/char/Kconfig
View File

@ -348,7 +348,7 @@ config XILINX_HWICAP
config R3964
tristate "Siemens R3964 line discipline"
depends on TTY
depends on TTY && BROKEN
---help---
This driver allows synchronous communication with devices using the
Siemens R3964 packet protocol. Unless you are dealing with special

4
drivers/char/tpm/eventlog/tpm2.c
View File

@ -37,8 +37,8 @@
*
* Returns size of the event. If it is an invalid event, returns 0.
*/
static int calc_tpm2_event_size(struct tcg_pcr_event2_head *event,
struct tcg_pcr_event *event_header)
static size_t calc_tpm2_event_size(struct tcg_pcr_event2_head *event,
struct tcg_pcr_event *event_header)
{
struct tcg_efi_specid_event_head *efispecid;
struct tcg_event_field *event_field;

9
drivers/char/tpm/tpm-dev-common.c
View File

@ -233,12 +233,19 @@ __poll_t tpm_common_poll(struct file *file, poll_table *wait)
__poll_t mask = 0;
poll_wait(file, &priv->async_wait, wait);
mutex_lock(&priv->buffer_mutex);
if (!priv->response_read || priv->response_length)
/*
* The response_length indicates if there is still response
* (or part of it) to be consumed. Partial reads decrease it
* by the number of bytes read, and write resets it the zero.
*/
if (priv->response_length)
mask = EPOLLIN | EPOLLRDNORM;
else
mask = EPOLLOUT | EPOLLWRNORM;
mutex_unlock(&priv->buffer_mutex);
return mask;
}

14
drivers/char/tpm/tpm-interface.c
View File

@ -402,15 +402,13 @@ int tpm_pm_suspend(struct device *dev)
if (chip->flags & TPM_CHIP_FLAG_ALWAYS_POWERED)
return 0;
if (chip->flags & TPM_CHIP_FLAG_TPM2) {
mutex_lock(&chip->tpm_mutex);
if (!tpm_chip_start(chip)) {
if (!tpm_chip_start(chip)) {
if (chip->flags & TPM_CHIP_FLAG_TPM2)
tpm2_shutdown(chip, TPM2_SU_STATE);
tpm_chip_stop(chip);
}
mutex_unlock(&chip->tpm_mutex);
} else {
rc = tpm1_pm_suspend(chip, tpm_suspend_pcr);
else
rc = tpm1_pm_suspend(chip, tpm_suspend_pcr);
tpm_chip_stop(chip);
}
return rc;

5
drivers/cpufreq/intel_pstate.c
View File

@ -2596,6 +2596,9 @@ static int __init intel_pstate_init(void)
const struct x86_cpu_id *id;
int rc;
if (boot_cpu_data.x86_vendor != X86_VENDOR_INTEL)
return -ENODEV;
if (no_load)
return -ENODEV;
@ -2611,7 +2614,7 @@ static int __init intel_pstate_init(void)
} else {
id = x86_match_cpu(intel_pstate_cpu_ids);
if (!id) {
pr_info("CPU ID not supported\n");
pr_info("CPU model not supported\n");
return -ENODEV;
}

13
drivers/crypto/caam/caamhash.c
View File

@ -865,19 +865,18 @@ static int ahash_update_ctx(struct ahash_request *req)
if (ret)
goto unmap_ctx;
if (mapped_nents) {
if (mapped_nents)
sg_to_sec4_sg_last(req->src, mapped_nents,
edesc->sec4_sg + sec4_sg_src_index,
0);
if (*next_buflen)
scatterwalk_map_and_copy(next_buf, req->src,
to_hash - *buflen,
*next_buflen, 0);
} else {
else
sg_to_sec4_set_last(edesc->sec4_sg + sec4_sg_src_index -
1);
}
if (*next_buflen)
scatterwalk_map_and_copy(next_buf, req->src,
to_hash - *buflen,
*next_buflen, 0);
desc = edesc->hw_desc;
edesc->sec4_sg_dma = dma_map_single(jrdev, edesc->sec4_sg,

5
drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
View File

@ -3625,6 +3625,7 @@ static void amdgpu_device_get_min_pci_speed_width(struct amdgpu_device *adev,
struct pci_dev *pdev = adev->pdev;
enum pci_bus_speed cur_speed;
enum pcie_link_width cur_width;
u32 ret = 1;
*speed = PCI_SPEED_UNKNOWN;
*width = PCIE_LNK_WIDTH_UNKNOWN;
@ -3632,6 +3633,10 @@ static void amdgpu_device_get_min_pci_speed_width(struct amdgpu_device *adev,
while (pdev) {
cur_speed = pcie_get_speed_cap(pdev);
cur_width = pcie_get_width_cap(pdev);
ret = pcie_bandwidth_available(adev->pdev, NULL,
NULL, &cur_width);
if (!ret)
cur_width = PCIE_LNK_WIDTH_RESRV;
if (cur_speed != PCI_SPEED_UNKNOWN) {
if (*speed == PCI_SPEED_UNKNOWN)

2
drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c
View File

@ -2405,8 +2405,6 @@ static int gfx_v9_0_rlc_resume(struct amdgpu_device *adev)
/* disable CG */
WREG32_SOC15(GC, 0, mmRLC_CGCG_CGLS_CTRL, 0);
adev->gfx.rlc.funcs->reset(adev);
gfx_v9_0_init_pg(adev);
if (adev->firmware.load_type != AMDGPU_FW_LOAD_PSP) {

6
drivers/gpu/drm/amd/display/dc/core/dc_link.c
View File

@ -2660,12 +2660,18 @@ void core_link_enable_stream(
void core_link_disable_stream(struct pipe_ctx *pipe_ctx, int option)
{
struct dc *core_dc = pipe_ctx->stream->ctx->dc;
struct dc_stream_state *stream = pipe_ctx->stream;
core_dc->hwss.blank_stream(pipe_ctx);
if (pipe_ctx->stream->signal == SIGNAL_TYPE_DISPLAY_PORT_MST)
deallocate_mst_payload(pipe_ctx);
if (dc_is_hdmi_signal(pipe_ctx->stream->signal))
dal_ddc_service_write_scdc_data(
stream->link->ddc, 0,
stream->timing.flags.LTE_340MCSC_SCRAMBLE);
core_dc->hwss.disable_stream(pipe_ctx, option);
disable_link(pipe_ctx->stream->link, pipe_ctx->stream->signal);

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