redonkable/remarkable-linux
redonkable/remarkable-linux
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Merge branch 'fixes' into misc

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This commit is contained in:
James Bottomley 2016-05-17 21:12:50 -04:00
parent 5f0dfb7a9b d65c8fff86
commit e7ca7f9fa2
145 changed files with 1044 additions and 778 deletions
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38
Documentation/devicetree/bindings/pinctrl/meson,pinctrl.txt
View file

@ -1,13 +1,16 @@
== Amlogic Meson pinmux controller ==
Required properties for the root node:
- compatible: "amlogic,meson8-pinctrl" or "amlogic,meson8b-pinctrl"
- compatible: one of "amlogic,meson8-cbus-pinctrl"
"amlogic,meson8b-cbus-pinctrl"
"amlogic,meson8-aobus-pinctrl"
"amlogic,meson8b-aobus-pinctrl"
- reg: address and size of registers controlling irq functionality
=== GPIO sub-nodes ===
The 2 power domains of the controller (regular and always-on) are
represented as sub-nodes and each of them acts as a GPIO controller.
The GPIO bank for the controller is represented as a sub-node and it acts as a
GPIO controller.
Required properties for sub-nodes are:
- reg: should contain address and size for mux, pull-enable, pull and
@ -18,10 +21,6 @@ Required properties for sub-nodes are:
- gpio-controller: identifies the node as a gpio controller
- #gpio-cells: must be 2
Valid sub-node names are:
- "banks" for the regular domain
- "ao-bank" for the always-on domain
=== Other sub-nodes ===
Child nodes without the "gpio-controller" represent some desired
@ -45,7 +44,7 @@ pinctrl-bindings.txt
=== Example ===
pinctrl: pinctrl@c1109880 {
compatible = "amlogic,meson8-pinctrl";
compatible = "amlogic,meson8-cbus-pinctrl";
reg = <0xc1109880 0x10>;
#address-cells = <1>;
#size-cells = <1>;
@ -61,15 +60,6 @@ pinctrl-bindings.txt
#gpio-cells = <2>;
};
gpio_ao: ao-bank@c1108030 {
reg = <0xc8100014 0x4>,
<0xc810002c 0x4>,
<0xc8100024 0x8>;
reg-names = "mux", "pull", "gpio";
gpio-controller;
#gpio-cells = <2>;
};
nand {
mux {
groups = "nand_io", "nand_io_ce0", "nand_io_ce1",
@ -79,18 +69,4 @@ pinctrl-bindings.txt
function = "nand";
};
};
uart_ao_a {
mux {
groups = "uart_tx_ao_a", "uart_rx_ao_a",
"uart_cts_ao_a", "uart_rts_ao_a";
function = "uart_ao";
};
conf {
pins = "GPIOAO_0", "GPIOAO_1",
"GPIOAO_2", "GPIOAO_3";
bias-disable;
};
};
};

2
Documentation/kernel-parameters.txt
View file

@ -4077,6 +4077,8 @@ bytes respectively. Such letter suffixes can also be entirely omitted.
sector if the number is odd);
i = IGNORE_DEVICE (don't bind to this
device);
j = NO_REPORT_LUNS (don't use report luns
command, uas only);
l = NOT_LOCKABLE (don't try to lock and
unlock ejectable media);
m = MAX_SECTORS_64 (don't transfer more

2
Documentation/usb/gadget_multi.txt
View file

@ -43,7 +43,7 @@ For the gadget two work under Windows two conditions have to be met:
First of all, Windows need to detect the gadget as an USB composite
gadget which on its own have some conditions[4]. If they are met,
Windows lets USB Generic Parent Driver[5] handle the device which then
tries to much drivers for each individual interface (sort of, don't
tries to match drivers for each individual interface (sort of, don't
get into too many details).
The good news is: you do not have to worry about most of the

27
Documentation/x86/protection-keys.txt Normal file
View file

@ -0,0 +1,27 @@
Memory Protection Keys for Userspace (PKU aka PKEYs) is a CPU feature
which will be found on future Intel CPUs.
Memory Protection Keys provides a mechanism for enforcing page-based
protections, but without requiring modification of the page tables
when an application changes protection domains. It works by
dedicating 4 previously ignored bits in each page table entry to a
"protection key", giving 16 possible keys.
There is also a new user-accessible register (PKRU) with two separate
bits (Access Disable and Write Disable) for each key. Being a CPU
register, PKRU is inherently thread-local, potentially giving each
thread a different set of protections from every other thread.
There are two new instructions (RDPKRU/WRPKRU) for reading and writing
to the new register. The feature is only available in 64-bit mode,
even though there is theoretically space in the PAE PTEs. These
permissions are enforced on data access only and have no effect on
instruction fetches.
=========================== Config Option ===========================
This config option adds approximately 1.5kb of text. and 50 bytes of
data to the executable. A workload which does large O_DIRECT reads
of holes in XFS files was run to exercise get_user_pages_fast(). No
performance delta was observed with the config option
enabled or disabled.

2
MAINTAINERS
View file

@ -6252,8 +6252,8 @@ S: Maintained
F: tools/testing/selftests
KERNEL VIRTUAL MACHINE (KVM)
M: Gleb Natapov <gleb@kernel.org>
M: Paolo Bonzini <pbonzini@redhat.com>
M: Radim Krčmář <rkrcmar@redhat.com>
L: kvm@vger.kernel.org
W: http://www.linux-kvm.org
T: git git://git.kernel.org/pub/scm/virt/kvm/kvm.git

2
Makefile
View file

@ -1,7 +1,7 @@
VERSION = 4
PATCHLEVEL = 6
SUBLEVEL = 0
EXTRAVERSION = -rc3
EXTRAVERSION = -rc4
NAME = Blurry Fish Butt
# *DOCUMENTATION*

5
arch/arm/boot/dts/am335x-baltos-ir5221.dts
View file

@ -470,9 +470,12 @@
};
&cpsw_emac0 {
phy_id = <&davinci_mdio>, <0>;
phy-mode = "rmii";
dual_emac_res_vlan = <1>;
fixed-link {
speed = <100>;
full-duplex;
};
};
&cpsw_emac1 {

2
arch/arm/boot/dts/am4372.dtsi
View file

@ -207,7 +207,7 @@
ti,tptcs = <&edma_tptc0 7>, <&edma_tptc1 5>,
<&edma_tptc2 0>;
ti,edma-memcpy-channels = <32 33>;
ti,edma-memcpy-channels = <58 59>;
};
edma_tptc0: tptc@49800000 {

5
arch/arm/boot/dts/am43x-epos-evm.dts
View file

@ -794,3 +794,8 @@
tx-num-evt = <32>;
rx-num-evt = <32>;
};
&synctimer_32kclk {
assigned-clocks = <&mux_synctimer32k_ck>;
assigned-clock-parents = <&clkdiv32k_ick>;
};

2
arch/arm/boot/dts/armada-385-linksys.dtsi
View file

@ -117,7 +117,7 @@
};
/* USB part of the eSATA/USB 2.0 port */
usb@50000 {
usb@58000 {
status = "okay";
};

57
arch/arm/boot/dts/meson8.dtsi
View file

@ -91,8 +91,8 @@
clock-frequency = <141666666>;
};
pinctrl: pinctrl@c1109880 {
compatible = "amlogic,meson8-pinctrl";
pinctrl_cbus: pinctrl@c1109880 {
compatible = "amlogic,meson8-cbus-pinctrl";
reg = <0xc1109880 0x10>;
#address-cells = <1>;
#size-cells = <1>;
@ -108,29 +108,6 @@
#gpio-cells = <2>;
};
gpio_ao: ao-bank@c1108030 {
reg = <0xc8100014 0x4>,
<0xc810002c 0x4>,
<0xc8100024 0x8>;
reg-names = "mux", "pull", "gpio";
gpio-controller;
#gpio-cells = <2>;
};
uart_ao_a_pins: uart_ao_a {
mux {
groups = "uart_tx_ao_a", "uart_rx_ao_a";
function = "uart_ao";
};
};
i2c_ao_pins: i2c_mst_ao {
mux {
groups = "i2c_mst_sck_ao", "i2c_mst_sda_ao";
function = "i2c_mst_ao";
};
};
spi_nor_pins: nor {
mux {
groups = "nor_d", "nor_q", "nor_c", "nor_cs";
@ -157,4 +134,34 @@
};
};
pinctrl_aobus: pinctrl@c8100084 {
compatible = "amlogic,meson8-aobus-pinctrl";
reg = <0xc8100084 0xc>;
#address-cells = <1>;
#size-cells = <1>;
ranges;
gpio_ao: ao-bank@c1108030 {
reg = <0xc8100014 0x4>,
<0xc810002c 0x4>,
<0xc8100024 0x8>;
reg-names = "mux", "pull", "gpio";
gpio-controller;
#gpio-cells = <2>;
};
uart_ao_a_pins: uart_ao_a {
mux {
groups = "uart_tx_ao_a", "uart_rx_ao_a";
function = "uart_ao";
};
};
i2c_ao_pins: i2c_mst_ao {
mux {
groups = "i2c_mst_sck_ao", "i2c_mst_sda_ao";
function = "i2c_mst_ao";
};
};
};
}; /* end of / */

12
arch/arm/boot/dts/meson8b.dtsi
View file

@ -155,8 +155,8 @@
reg = <0xc1108000 0x4>, <0xc1104000 0x460>;
};
pinctrl: pinctrl@c1109880 {
compatible = "amlogic,meson8b-pinctrl";
pinctrl_cbus: pinctrl@c1109880 {
compatible = "amlogic,meson8b-cbus-pinctrl";
reg = <0xc1109880 0x10>;
#address-cells = <1>;
#size-cells = <1>;
@ -171,6 +171,14 @@
gpio-controller;
#gpio-cells = <2>;
};
};
pinctrl_aobus: pinctrl@c8100084 {
compatible = "amlogic,meson8b-aobus-pinctrl";
reg = <0xc8100084 0xc>;
#address-cells = <1>;
#size-cells = <1>;
ranges;
gpio_ao: ao-bank@c1108030 {
reg = <0xc8100014 0x4>,

2
arch/arm/boot/dts/omap4.dtsi
View file

@ -70,7 +70,7 @@
compatible = "arm,cortex-a9-twd-timer";
clocks = <&mpu_periphclk>;
reg = <0x48240600 0x20>;
interrupts = <GIC_PPI 13 (GIC_CPU_MASK_RAW(3) | IRQ_TYPE_LEVEL_HIGH)>;
interrupts = <GIC_PPI 13 (GIC_CPU_MASK_RAW(3) | IRQ_TYPE_EDGE_RISING)>;
interrupt-parent = <&gic>;
};

3
arch/arm/configs/u8500_defconfig
View file

@ -63,6 +63,9 @@ CONFIG_INPUT_TOUCHSCREEN=y
CONFIG_TOUCHSCREEN_BU21013=y
CONFIG_INPUT_MISC=y
CONFIG_INPUT_AB8500_PONKEY=y
CONFIG_RMI4_CORE=y
CONFIG_RMI4_I2C=y
CONFIG_RMI4_F11=y
# CONFIG_SERIO is not set
CONFIG_VT_HW_CONSOLE_BINDING=y
# CONFIG_LEGACY_PTYS is not set

13
arch/arm/kvm/arm.c
View file

@ -1112,10 +1112,17 @@ static void __init hyp_cpu_pm_init(void)
{
cpu_pm_register_notifier(&hyp_init_cpu_pm_nb);
}
static void __init hyp_cpu_pm_exit(void)
{
cpu_pm_unregister_notifier(&hyp_init_cpu_pm_nb);
}
#else
static inline void hyp_cpu_pm_init(void)
{
}
static inline void hyp_cpu_pm_exit(void)
{
}
#endif
static void teardown_common_resources(void)
@ -1141,9 +1148,7 @@ static int init_subsystems(void)
/*
* Register CPU Hotplug notifier
*/
cpu_notifier_register_begin();
err = __register_cpu_notifier(&hyp_init_cpu_nb);
cpu_notifier_register_done();
err = register_cpu_notifier(&hyp_init_cpu_nb);
if (err) {
kvm_err("Cannot register KVM init CPU notifier (%d)\n", err);
return err;
@ -1193,6 +1198,8 @@ static void teardown_hyp_mode(void)
free_hyp_pgds();
for_each_possible_cpu(cpu)
free_page(per_cpu(kvm_arm_hyp_stack_page, cpu));
unregister_cpu_notifier(&hyp_init_cpu_nb);
hyp_cpu_pm_exit();
}
static int init_vhe_mode(void)

4
arch/arm/mach-omap2/id.c
View file

@ -669,9 +669,9 @@ void __init dra7xxx_check_revision(void)
case 0:
omap_revision = DRA722_REV_ES1_0;
break;
case 1:
default:
/* If we have no new revisions */
omap_revision = DRA722_REV_ES1_0;
omap_revision = DRA722_REV_ES2_0;
break;
}
break;

1
arch/arm/mach-omap2/io.c
View file

@ -368,6 +368,7 @@ void __init omap5_map_io(void)
void __init dra7xx_map_io(void)
{
iotable_init(dra7xx_io_desc, ARRAY_SIZE(dra7xx_io_desc));
omap_barriers_init();
}
#endif
/*

8
arch/arm/mach-omap2/omap_hwmod.c
View file

@ -1416,9 +1416,7 @@ static void _enable_sysc(struct omap_hwmod *oh)
(sf & SYSC_HAS_CLOCKACTIVITY))
_set_clockactivity(oh, oh->class->sysc->clockact, &v);
/* If the cached value is the same as the new value, skip the write */
if (oh->_sysc_cache != v)
_write_sysconfig(v, oh);
_write_sysconfig(v, oh);
/*
* Set the autoidle bit only after setting the smartidle bit
@ -1481,7 +1479,9 @@ static void _idle_sysc(struct omap_hwmod *oh)
_set_master_standbymode(oh, idlemode, &v);
}
_write_sysconfig(v, oh);
/* If the cached value is the same as the new value, skip the write */
if (oh->_sysc_cache != v)
_write_sysconfig(v, oh);
}
/**

2
arch/arm/mach-omap2/omap_hwmod_81xx_data.c
View file

@ -582,9 +582,11 @@ static struct omap_hwmod_ocp_if dm81xx_alwon_l3_slow__gpmc = {
.user = OCP_USER_MPU,
};
/* USB needs udelay 1 after reset at least on hp t410, use 2 for margin */
static struct omap_hwmod_class_sysconfig dm81xx_usbhsotg_sysc = {
.rev_offs = 0x0,
.sysc_offs = 0x10,
.srst_udelay = 2,
.sysc_flags = SYSC_HAS_SIDLEMODE | SYSC_HAS_MIDLEMODE |
SYSC_HAS_SOFTRESET,
.idlemodes = SIDLE_SMART | MSTANDBY_FORCE | MSTANDBY_SMART,

1
arch/arm/mach-omap2/soc.h
View file

@ -489,6 +489,7 @@ IS_OMAP_TYPE(3430, 0x3430)
#define DRA752_REV_ES2_0 (DRA7XX_CLASS | (0x52 << 16) | (0x20 << 8))
#define DRA722_REV_ES1_0 (DRA7XX_CLASS | (0x22 << 16) | (0x10 << 8))
#define DRA722_REV_ES1_0 (DRA7XX_CLASS | (0x22 << 16) | (0x10 << 8))
#define DRA722_REV_ES2_0 (DRA7XX_CLASS | (0x22 << 16) | (0x20 << 8))
void omap2xxx_check_revision(void);
void omap3xxx_check_revision(void);

1
arch/arm/mach-pxa/devices.c
View file

@ -1235,5 +1235,6 @@ static struct platform_device pxa2xx_pxa_dma = {
void __init pxa2xx_set_dmac_info(int nb_channels, int nb_requestors)
{
pxa_dma_pdata.dma_channels = nb_channels;
pxa_dma_pdata.nb_requestors = nb_requestors;
pxa_register_device(&pxa2xx_pxa_dma, &pxa_dma_pdata);
}

10
arch/arm/mach-sa1100/Kconfig
View file

@ -61,10 +61,7 @@ config SA1100_H3100
select MFD_IPAQ_MICRO
help
Say Y here if you intend to run this kernel on the Compaq iPAQ
H3100 handheld computer. Information about this machine and the
Linux port to this machine can be found at:
<http://www.handhelds.org/Compaq/index.html#iPAQ_H3100>
H3100 handheld computer.
config SA1100_H3600
bool "Compaq iPAQ H3600/H3700"
@ -73,10 +70,7 @@ config SA1100_H3600
select MFD_IPAQ_MICRO
help
Say Y here if you intend to run this kernel on the Compaq iPAQ
H3600 handheld computer. Information about this machine and the
Linux port to this machine can be found at:
<http://www.handhelds.org/Compaq/index.html#iPAQ_H3600>
H3600 and H3700 handheld computers.
config SA1100_BADGE4
bool "HP Labs BadgePAD 4"

2
arch/arm/mach-uniphier/platsmp.c
View file

@ -120,7 +120,7 @@ static int __init uniphier_smp_prepare_trampoline(unsigned int max_cpus)
if (ret)
return ret;
uniphier_smp_rom_boot_rsv2 = ioremap(rom_rsv2_phys, sizeof(SZ_4));
uniphier_smp_rom_boot_rsv2 = ioremap(rom_rsv2_phys, SZ_4);
if (!uniphier_smp_rom_boot_rsv2) {
pr_err("failed to map ROM_BOOT_RSV2 register\n");
return -ENOMEM;

15
arch/arm64/boot/dts/broadcom/vulcan.dtsi
View file

@ -108,12 +108,15 @@
reg = <0x0 0x30000000 0x0 0x10000000>;
reg-names = "PCI ECAM";
/* IO 0x4000_0000 - 0x4001_0000 */
ranges = <0x01000000 0 0x40000000 0 0x40000000 0 0x00010000
/* MEM 0x4800_0000 - 0x5000_0000 */
0x02000000 0 0x48000000 0 0x48000000 0 0x08000000
/* MEM64 pref 0x6_0000_0000 - 0x7_0000_0000 */
0x43000000 6 0x00000000 6 0x00000000 1 0x00000000>;
/*
* PCI ranges:
* IO no supported
* MEM 0x4000_0000 - 0x6000_0000
* MEM64 pref 0x40_0000_0000 - 0x60_0000_0000
*/
ranges =
<0x02000000 0 0x40000000 0 0x40000000 0 0x20000000
0x43000000 0x40 0x00000000 0x40 0x00000000 0x20 0x00000000>;
interrupt-map-mask = <0 0 0 7>;
interrupt-map =
/* addr pin ic icaddr icintr */

6
arch/arm64/include/asm/kvm_arm.h
View file

@ -151,8 +151,7 @@
*/
#define VTCR_EL2_FLAGS (VTCR_EL2_TG0_64K | VTCR_EL2_SH0_INNER | \
VTCR_EL2_ORGN0_WBWA | VTCR_EL2_IRGN0_WBWA | \
VTCR_EL2_SL0_LVL1 | VTCR_EL2_T0SZ_40B | \
VTCR_EL2_RES1)
VTCR_EL2_SL0_LVL1 | VTCR_EL2_RES1)
#define VTTBR_X (38 - VTCR_EL2_T0SZ_40B)
#else
/*
@ -163,8 +162,7 @@
*/
#define VTCR_EL2_FLAGS (VTCR_EL2_TG0_4K | VTCR_EL2_SH0_INNER | \
VTCR_EL2_ORGN0_WBWA | VTCR_EL2_IRGN0_WBWA | \
VTCR_EL2_SL0_LVL1 | VTCR_EL2_T0SZ_40B | \
VTCR_EL2_RES1)
VTCR_EL2_SL0_LVL1 | VTCR_EL2_RES1)
#define VTTBR_X (37 - VTCR_EL2_T0SZ_40B)
#endif

2
arch/arm64/include/asm/kvm_asm.h
View file

@ -54,7 +54,7 @@ extern void __vgic_v3_init_lrs(void);
extern u32 __kvm_get_mdcr_el2(void);
extern void __init_stage2_translation(void);
extern u32 __init_stage2_translation(void);
#endif

7
arch/arm64/include/asm/kvm_host.h
View file

@ -369,11 +369,12 @@ int kvm_arm_vcpu_arch_get_attr(struct kvm_vcpu *vcpu,
int kvm_arm_vcpu_arch_has_attr(struct kvm_vcpu *vcpu,
struct kvm_device_attr *attr);
/* #define kvm_call_hyp(f, ...) __kvm_call_hyp(kvm_ksym_ref(f), ##__VA_ARGS__) */
static inline void __cpu_init_stage2(void)
{
kvm_call_hyp(__init_stage2_translation);
u32 parange = kvm_call_hyp(__init_stage2_translation);
WARN_ONCE(parange < 40,
"PARange is %d bits, unsupported configuration!", parange);
}
#endif /* __ARM64_KVM_HOST_H__ */

39
arch/arm64/kvm/hyp/s2-setup.c
View file

@ -20,9 +20,10 @@
#include <asm/kvm_asm.h>
#include <asm/kvm_hyp.h>
void __hyp_text __init_stage2_translation(void)
u32 __hyp_text __init_stage2_translation(void)
{
u64 val = VTCR_EL2_FLAGS;
u64 parange;
u64 tmp;
/*
@ -30,7 +31,39 @@ void __hyp_text __init_stage2_translation(void)
* bits in VTCR_EL2. Amusingly, the PARange is 4 bits, while
* PS is only 3. Fortunately, bit 19 is RES0 in VTCR_EL2...
*/
val |= (read_sysreg(id_aa64mmfr0_el1) & 7) << 16;
parange = read_sysreg(id_aa64mmfr0_el1) & 7;
val |= parange << 16;
/* Compute the actual PARange... */
switch (parange) {
case 0:
parange = 32;
break;
case 1:
parange = 36;
break;
case 2:
parange = 40;
break;
case 3:
parange = 42;
break;
case 4:
parange = 44;
break;
case 5:
default:
parange = 48;
break;
}
/*
* ... and clamp it to 40 bits, unless we have some braindead
* HW that implements less than that. In all cases, we'll
* return that value for the rest of the kernel to decide what
* to do.
*/
val |= 64 - (parange > 40 ? 40 : parange);
/*
* Read the VMIDBits bits from ID_AA64MMFR1_EL1 and set the VS
@ -42,4 +75,6 @@ void __hyp_text __init_stage2_translation(void)
VTCR_EL2_VS_8BIT;
write_sysreg(val, vtcr_el2);
return parange;
}

8
arch/m68k/coldfire/gpio.c
View file

@ -158,11 +158,6 @@ static int mcfgpio_to_irq(struct gpio_chip *chip, unsigned offset)
return -EINVAL;
}
static struct bus_type mcfgpio_subsys = {
.name = "gpio",
.dev_name = "gpio",
};
static struct gpio_chip mcfgpio_chip = {
.label = "mcfgpio",
.request = mcfgpio_request,
@ -178,8 +173,7 @@ static struct gpio_chip mcfgpio_chip = {
static int __init mcfgpio_sysinit(void)
{
gpiochip_add_data(&mcfgpio_chip, NULL);
return subsys_system_register(&mcfgpio_subsys, NULL);
return gpiochip_add_data(&mcfgpio_chip, NULL);
}
core_initcall(mcfgpio_sysinit);

4
arch/parisc/Kconfig
View file

@ -4,8 +4,8 @@ config PARISC
select ARCH_MIGHT_HAVE_PC_PARPORT
select HAVE_IDE
select HAVE_OPROFILE
select HAVE_FUNCTION_TRACER if 64BIT
select HAVE_FUNCTION_GRAPH_TRACER if 64BIT
select HAVE_FUNCTION_TRACER
select HAVE_FUNCTION_GRAPH_TRACER
select ARCH_WANT_FRAME_POINTERS
select RTC_CLASS
select RTC_DRV_GENERIC

4
arch/parisc/Kconfig.debug
View file

@ -2,9 +2,13 @@ menu "Kernel hacking"
source "lib/Kconfig.debug"
config TRACE_IRQFLAGS_SUPPORT
def_bool y
config DEBUG_RODATA
bool "Write protect kernel read-only data structures"
depends on DEBUG_KERNEL
default y
help
Mark the kernel read-only data as write-protected in the pagetables,
in order to catch accidental (and incorrect) writes to such const

4
arch/parisc/Makefile
View file

@ -62,9 +62,7 @@ cflags-y += -mdisable-fpregs
# Without this, "ld -r" results in .text sections that are too big
# (> 0x40000) for branches to reach stubs.
ifndef CONFIG_FUNCTION_TRACER
cflags-y += -ffunction-sections
endif
cflags-y += -ffunction-sections
# Use long jumps instead of long branches (needed if your linker fails to
# link a too big vmlinux executable). Not enabled for building modules.

18
arch/parisc/include/asm/ftrace.h
View file

@ -4,23 +4,7 @@
#ifndef __ASSEMBLY__
extern void mcount(void);
/*
* Stack of return addresses for functions of a thread.
* Used in struct thread_info
*/
struct ftrace_ret_stack {
unsigned long ret;
unsigned long func;
unsigned long long calltime;
};
/*
* Primary handler of a function return.
* It relays on ftrace_return_to_handler.
* Defined in entry.S
*/
extern void return_to_handler(void);
#define MCOUNT_INSN_SIZE 4
extern unsigned long return_address(unsigned int);

4
arch/parisc/kernel/Makefile
View file

@ -15,11 +15,7 @@ ifdef CONFIG_FUNCTION_TRACER
# Do not profile debug and lowlevel utilities
CFLAGS_REMOVE_ftrace.o = -pg
CFLAGS_REMOVE_cache.o = -pg
CFLAGS_REMOVE_irq.o = -pg
CFLAGS_REMOVE_pacache.o = -pg
CFLAGS_REMOVE_perf.o = -pg
CFLAGS_REMOVE_traps.o = -pg
CFLAGS_REMOVE_unaligned.o = -pg
CFLAGS_REMOVE_unwind.o = -pg
endif

97
arch/parisc/kernel/entry.S
View file

@ -1970,43 +1970,98 @@ pt_regs_ok:
b intr_restore
copy %r25,%r16
.import schedule,code
syscall_do_resched:
BL schedule,%r2
load32 syscall_check_resched,%r2 /* if resched, we start over again */
load32 schedule,%r19
bv %r0(%r19) /* jumps to schedule() */
#ifdef CONFIG_64BIT
ldo -16(%r30),%r29 /* Reference param save area */
#else
nop
#endif
b syscall_check_resched /* if resched, we start over again */
nop
ENDPROC(syscall_exit)
#ifdef CONFIG_FUNCTION_TRACER
.import ftrace_function_trampoline,code
ENTRY(_mcount)
copy %r3, %arg2
.align L1_CACHE_BYTES
.globl mcount
.type mcount, @function
ENTRY(mcount)
_mcount:
.export _mcount,data
.proc
.callinfo caller,frame=0
.entry
/*
* The 64bit mcount() function pointer needs 4 dwords, of which the
* first two are free. We optimize it here and put 2 instructions for
* calling mcount(), and 2 instructions for ftrace_stub(). That way we
* have all on one L1 cacheline.
*/
b ftrace_function_trampoline
nop
ENDPROC(_mcount)
ENTRY(return_to_handler)
load32 return_trampoline, %rp
copy %ret0, %arg0
copy %ret1, %arg1
b ftrace_return_to_handler
nop
return_trampoline:
copy %ret0, %rp
copy %r23, %ret0
copy %r24, %ret1
.globl ftrace_stub
copy %r3, %arg2 /* caller original %sp */
ftrace_stub:
.globl ftrace_stub
.type ftrace_stub, @function
#ifdef CONFIG_64BIT
bve (%rp)
#else
bv %r0(%rp)
#endif
nop
#ifdef CONFIG_64BIT
.dword mcount
.dword 0 /* code in head.S puts value of global gp here */
#endif
.exit
.procend
ENDPROC(mcount)
.align 8
.globl return_to_handler
.type return_to_handler, @function
ENTRY(return_to_handler)
.proc
.callinfo caller,frame=FRAME_SIZE
.entry
.export parisc_return_to_handler,data
parisc_return_to_handler:
copy %r3,%r1
STREG %r0,-RP_OFFSET(%sp) /* store 0 as %rp */
copy %sp,%r3
STREGM %r1,FRAME_SIZE(%sp)
STREG %ret0,8(%r3)
STREG %ret1,16(%r3)
#ifdef CONFIG_64BIT
loadgp
#endif
/* call ftrace_return_to_handler(0) */
#ifdef CONFIG_64BIT
ldo -16(%sp),%ret1 /* Reference param save area */
#endif
BL ftrace_return_to_handler,%r2
ldi 0,%r26
copy %ret0,%rp
/* restore original return values */
LDREG 8(%r3),%ret0
LDREG 16(%r3),%ret1
/* return from function */
#ifdef CONFIG_64BIT
bve (%rp)
#else
bv %r0(%rp)
#endif
LDREGM -FRAME_SIZE(%sp),%r3
.exit
.procend
ENDPROC(return_to_handler)
#endif /* CONFIG_FUNCTION_TRACER */
#ifdef CONFIG_IRQSTACKS

148
arch/parisc/kernel/ftrace.c
View file

@ -1,6 +1,6 @@
/*
* Code for tracing calls in Linux kernel.
* Copyright (C) 2009 Helge Deller <deller@gmx.de>
* Copyright (C) 2009-2016 Helge Deller <deller@gmx.de>
*
* based on code for x86 which is:
* Copyright (C) 2007-2008 Steven Rostedt <srostedt@redhat.com>
@ -13,104 +13,21 @@
#include <linux/init.h>
#include <linux/ftrace.h>
#include <asm/assembly.h>
#include <asm/sections.h>
#include <asm/ftrace.h>
#ifdef CONFIG_FUNCTION_GRAPH_TRACER
/* Add a function return address to the trace stack on thread info.*/
static int push_return_trace(unsigned long ret, unsigned long long time,
unsigned long func, int *depth)
{
int index;
if (!current->ret_stack)
return -EBUSY;
/* The return trace stack is full */
if (current->curr_ret_stack == FTRACE_RETFUNC_DEPTH - 1) {
atomic_inc(&current->trace_overrun);
return -EBUSY;
}
index = ++current->curr_ret_stack;
barrier();
current->ret_stack[index].ret = ret;
current->ret_stack[index].func = func;
current->ret_stack[index].calltime = time;
*depth = index;
return 0;
}
/* Retrieve a function return address to the trace stack on thread info.*/
static void pop_return_trace(struct ftrace_graph_ret *trace, unsigned long *ret)
{
int index;
index = current->curr_ret_stack;
if (unlikely(index < 0)) {
ftrace_graph_stop();
WARN_ON(1);
/* Might as well panic, otherwise we have no where to go */
*ret = (unsigned long)
dereference_function_descriptor(&panic);
return;
}
*ret = current->ret_stack[index].ret;
trace->func = current->ret_stack[index].func;
trace->calltime = current->ret_stack[index].calltime;
trace->overrun = atomic_read(&current->trace_overrun);
trace->depth = index;
barrier();
current->curr_ret_stack--;
}
/*
* Send the trace to the ring-buffer.
* @return the original return address.
*/
unsigned long ftrace_return_to_handler(unsigned long retval0,
unsigned long retval1)
{
struct ftrace_graph_ret trace;
unsigned long ret;
pop_return_trace(&trace, &ret);
trace.rettime = local_clock();
ftrace_graph_return(&trace);
if (unlikely(!ret)) {
ftrace_graph_stop();
WARN_ON(1);
/* Might as well panic. What else to do? */
ret = (unsigned long)
dereference_function_descriptor(&panic);
}
/* HACK: we hand over the old functions' return values
in %r23 and %r24. Assembly in entry.S will take care
and move those to their final registers %ret0 and %ret1 */
asm( "copy %0, %%r23 \n\t"
"copy %1, %%r24 \n" : : "r" (retval0), "r" (retval1) );
return ret;
}
/*
* Hook the return address and push it in the stack of return addrs
* in current thread info.
*/
void prepare_ftrace_return(unsigned long *parent, unsigned long self_addr)
static void prepare_ftrace_return(unsigned long *parent, unsigned long self_addr)
{
unsigned long old;
unsigned long long calltime;
struct ftrace_graph_ent trace;
extern int parisc_return_to_handler;
if (unlikely(ftrace_graph_is_dead()))
return;
@ -119,64 +36,47 @@ void prepare_ftrace_return(unsigned long *parent, unsigned long self_addr)
return;
old = *parent;
*parent = (unsigned long)
dereference_function_descriptor(&return_to_handler);
if (unlikely(!__kernel_text_address(old))) {
ftrace_graph_stop();
*parent = old;
WARN_ON(1);
return;
}
calltime = local_clock();
if (push_return_trace(old, calltime,
self_addr, &trace.depth) == -EBUSY) {
*parent = old;
return;
}
trace.func = self_addr;
trace.depth = current->curr_ret_stack + 1;
/* Only trace if the calling function expects to */
if (!ftrace_graph_entry(&trace)) {
current->curr_ret_stack--;
*parent = old;
}
}
if (!ftrace_graph_entry(&trace))
return;
if (ftrace_push_return_trace(old, self_addr, &trace.depth,
0 ) == -EBUSY)
return;
/* activate parisc_return_to_handler() as return point */
*parent = (unsigned long) &parisc_return_to_handler;
}
#endif /* CONFIG_FUNCTION_GRAPH_TRACER */
void ftrace_function_trampoline(unsigned long parent,
void notrace ftrace_function_trampoline(unsigned long parent,
unsigned long self_addr,
unsigned long org_sp_gr3)
{
extern ftrace_func_t ftrace_trace_function;
extern ftrace_func_t ftrace_trace_function; /* depends on CONFIG_DYNAMIC_FTRACE */
extern int ftrace_graph_entry_stub(struct ftrace_graph_ent *trace);
if (ftrace_trace_function != ftrace_stub) {
ftrace_trace_function(parent, self_addr);
/* struct ftrace_ops *op, struct pt_regs *regs); */
ftrace_trace_function(parent, self_addr, NULL, NULL);
return;
}
#ifdef CONFIG_FUNCTION_GRAPH_TRACER
if (ftrace_graph_entry && ftrace_graph_return) {
unsigned long sp;
if (ftrace_graph_return != (trace_func_graph_ret_t) ftrace_stub ||
ftrace_graph_entry != ftrace_graph_entry_stub) {
unsigned long *parent_rp;
asm volatile ("copy %%r30, %0" : "=r"(sp));
/* sanity check: is stack pointer which we got from
assembler function in entry.S in a reasonable
range compared to current stack pointer? */
if ((sp - org_sp_gr3) > 0x400)
return;
/* calculate pointer to %rp in stack */
parent_rp = (unsigned long *) org_sp_gr3 - 0x10;
parent_rp = (unsigned long *) (org_sp_gr3 - RP_OFFSET);
/* sanity check: parent_rp should hold parent */
if (*parent_rp != parent)
return;
prepare_ftrace_return(parent_rp, self_addr);
return;
}

9
arch/parisc/kernel/head.S
View file

@ -129,6 +129,15 @@ $pgt_fill_loop:
/* And the stack pointer too */
ldo THREAD_SZ_ALGN(%r6),%sp
#if defined(CONFIG_64BIT) && defined(CONFIG_FUNCTION_TRACER)
.import _mcount,data
/* initialize mcount FPTR */
/* Get the global data pointer */
loadgp
load32 PA(_mcount), %r10
std %dp,0x18(%r10)
#endif
#ifdef CONFIG_SMP
/* Set the smp rendezvous address into page zero.
** It would be safer to do this in init_smp_config() but

5
arch/sh/include/asm/smp.h
View file

@ -34,11 +34,6 @@ enum {
DECLARE_PER_CPU(int, cpu_state);
void smp_message_recv(unsigned int msg);
void smp_timer_broadcast(const struct cpumask *mask);
void local_timer_interrupt(void);
void local_timer_setup(unsigned int cpu);
void local_timer_stop(unsigned int cpu);
void arch_send_call_function_single_ipi(int cpu);
void arch_send_call_function_ipi_mask(const struct cpumask *mask);

2
arch/sh/include/asm/topology.h
View file

@ -17,7 +17,7 @@
#define mc_capable() (1)
const struct cpumask *cpu_coregroup_mask(unsigned int cpu);
const struct cpumask *cpu_coregroup_mask(int cpu);
extern cpumask_t cpu_core_map[NR_CPUS];

2
arch/sh/kernel/cpu/sh4a/smp-shx3.c
View file

@ -73,8 +73,6 @@ static void shx3_prepare_cpus(unsigned int max_cpus)
{
int i;
local_timer_setup(0);
BUILD_BUG_ON(SMP_MSG_NR >= 8);
for (i = 0; i < SMP_MSG_NR; i++)

4
arch/sh/kernel/topology.c
View file

@ -21,7 +21,7 @@ static DEFINE_PER_CPU(struct cpu, cpu_devices);
cpumask_t cpu_core_map[NR_CPUS];
EXPORT_SYMBOL(cpu_core_map);
static cpumask_t cpu_coregroup_map(unsigned int cpu)
static cpumask_t cpu_coregroup_map(int cpu)
{
/*
* Presently all SH-X3 SMP cores are multi-cores, so just keep it
@ -30,7 +30,7 @@ static cpumask_t cpu_coregroup_map(unsigned int cpu)
return *cpu_possible_mask;
}
const struct cpumask *cpu_coregroup_mask(unsigned int cpu)
const struct cpumask *cpu_coregroup_mask(int cpu)
{
return &cpu_core_map[cpu];
}

14
arch/x86/boot/compressed/Makefile
View file

@ -26,7 +26,7 @@ targets := vmlinux vmlinux.bin vmlinux.bin.gz vmlinux.bin.bz2 vmlinux.bin.lzma \
vmlinux.bin.xz vmlinux.bin.lzo vmlinux.bin.lz4
KBUILD_CFLAGS := -m$(BITS) -D__KERNEL__ $(LINUX_INCLUDE) -O2
KBUILD_CFLAGS += -fno-strict-aliasing -fPIC
KBUILD_CFLAGS += -fno-strict-aliasing $(call cc-option, -fPIE, -fPIC)
KBUILD_CFLAGS += -DDISABLE_BRANCH_PROFILING
cflags-$(CONFIG_X86_32) := -march=i386
cflags-$(CONFIG_X86_64) := -mcmodel=small
@ -40,6 +40,18 @@ GCOV_PROFILE := n
UBSAN_SANITIZE :=n
LDFLAGS := -m elf_$(UTS_MACHINE)
ifeq ($(CONFIG_RELOCATABLE),y)
# If kernel is relocatable, build compressed kernel as PIE.
ifeq ($(CONFIG_X86_32),y)
LDFLAGS += $(call ld-option, -pie) $(call ld-option, --no-dynamic-linker)
else
# To build 64-bit compressed kernel as PIE, we disable relocation
# overflow check to avoid relocation overflow error with a new linker
# command-line option, -z noreloc-overflow.
LDFLAGS += $(shell $(LD) --help 2>&1 | grep -q "\-z noreloc-overflow" \
&& echo "-z noreloc-overflow -pie --no-dynamic-linker")
endif
endif
LDFLAGS_vmlinux := -T
hostprogs-y := mkpiggy

28
arch/x86/boot/compressed/head_32.S
View file

@ -31,6 +31,34 @@
#include <asm/asm-offsets.h>
#include <asm/bootparam.h>
/*
* The 32-bit x86 assembler in binutils 2.26 will generate R_386_GOT32X
* relocation to get the symbol address in PIC. When the compressed x86
* kernel isn't built as PIC, the linker optimizes R_386_GOT32X
* relocations to their fixed symbol addresses. However, when the
* compressed x86 kernel is loaded at a different address, it leads
* to the following load failure:
*
* Failed to allocate space for phdrs
*
* during the decompression stage.
*
* If the compressed x86 kernel is relocatable at run-time, it should be
* compiled with -fPIE, instead of -fPIC, if possible and should be built as
* Position Independent Executable (PIE) so that linker won't optimize
* R_386_GOT32X relocation to its fixed symbol address. Older
* linkers generate R_386_32 relocations against locally defined symbols,
* _bss, _ebss, _got and _egot, in PIE. It isn't wrong, just less
* optimal than R_386_RELATIVE. But the x86 kernel fails to properly handle
* R_386_32 relocations when relocating the kernel. To generate
* R_386_RELATIVE relocations, we mark _bss, _ebss, _got and _egot as
* hidden:
*/
.hidden _bss
.hidden _ebss
.hidden _got
.hidden _egot
__HEAD
ENTRY(startup_32)
#ifdef CONFIG_EFI_STUB

8
arch/x86/boot/compressed/head_64.S
View file

@ -33,6 +33,14 @@
#include <asm/asm-offsets.h>
#include <asm/bootparam.h>
/*
* Locally defined symbols should be marked hidden:
*/
.hidden _bss
.hidden _ebss
.hidden _got
.hidden _egot
__HEAD
.code32
ENTRY(startup_32)

4
arch/x86/kernel/cpu/mcheck/mce-genpool.c
View file

@ -29,7 +29,7 @@ static char gen_pool_buf[MCE_POOLSZ];
void mce_gen_pool_process(void)
{
struct llist_node *head;
struct mce_evt_llist *node;
struct mce_evt_llist *node, *tmp;
struct mce *mce;
head = llist_del_all(&mce_event_llist);
@ -37,7 +37,7 @@ void mce_gen_pool_process(void)
return;
head = llist_reverse_order(head);
llist_for_each_entry(node, head, llnode) {
llist_for_each_entry_safe(node, tmp, head, llnode) {
mce = &node->mce;
atomic_notifier_call_chain(&x86_mce_decoder_chain, 0, mce);
gen_pool_free(mce_evt_pool, (unsigned long)node, sizeof(*node));

37
arch/x86/kernel/setup.c
View file

@ -146,6 +146,31 @@ int default_check_phys_apicid_present(int phys_apicid)
struct boot_params boot_params;
/*
* Machine setup..
*/
static struct resource data_resource = {
.name = "Kernel data",
.start = 0,
.end = 0,
.flags = IORESOURCE_BUSY | IORESOURCE_SYSTEM_RAM
};
static struct resource code_resource = {
.name = "Kernel code",
.start = 0,
.end = 0,
.flags = IORESOURCE_BUSY | IORESOURCE_SYSTEM_RAM
};
static struct resource bss_resource = {
.name = "Kernel bss",
.start = 0,
.end = 0,
.flags = IORESOURCE_BUSY | IORESOURCE_SYSTEM_RAM
};
#ifdef CONFIG_X86_32
/* cpu data as detected by the assembly code in head.S */
struct cpuinfo_x86 new_cpu_data = {
@ -924,6 +949,13 @@ void __init setup_arch(char **cmdline_p)
mpx_mm_init(&init_mm);
code_resource.start = __pa_symbol(_text);
code_resource.end = __pa_symbol(_etext)-1;
data_resource.start = __pa_symbol(_etext);
data_resource.end = __pa_symbol(_edata)-1;
bss_resource.start = __pa_symbol(__bss_start);
bss_resource.end = __pa_symbol(__bss_stop)-1;
#ifdef CONFIG_CMDLINE_BOOL
#ifdef CONFIG_CMDLINE_OVERRIDE
strlcpy(boot_command_line, builtin_cmdline, COMMAND_LINE_SIZE);
@ -987,6 +1019,11 @@ void __init setup_arch(char **cmdline_p)
x86_init.resources.probe_roms();
/* after parse_early_param, so could debug it */
insert_resource(&iomem_resource, &code_resource);
insert_resource(&iomem_resource, &data_resource);
insert_resource(&iomem_resource, &bss_resource);
e820_add_kernel_range();
trim_bios_range();
#ifdef CONFIG_X86_32

1
arch/x86/kvm/cpuid.c
View file

@ -534,6 +534,7 @@ static inline int __do_cpuid_ent(struct kvm_cpuid_entry2 *entry, u32 function,
do_cpuid_1_ent(&entry[i], function, idx);
if (idx == 1) {
entry[i].eax &= kvm_cpuid_D_1_eax_x86_features;
cpuid_mask(&entry[i].eax, CPUID_D_1_EAX);
entry[i].ebx = 0;
if (entry[i].eax & (F(XSAVES)|F(XSAVEC)))
entry[i].ebx =

9
arch/x86/kvm/mmu.h
View file

@ -173,10 +173,9 @@ static inline u8 permission_fault(struct kvm_vcpu *vcpu, struct kvm_mmu *mmu,
int index = (pfec >> 1) +
(smap >> (X86_EFLAGS_AC_BIT - PFERR_RSVD_BIT + 1));
bool fault = (mmu->permissions[index] >> pte_access) & 1;
u32 errcode = PFERR_PRESENT_MASK;
WARN_ON(pfec & (PFERR_PK_MASK | PFERR_RSVD_MASK));
pfec |= PFERR_PRESENT_MASK;
if (unlikely(mmu->pkru_mask)) {
u32 pkru_bits, offset;
@ -189,15 +188,15 @@ static inline u8 permission_fault(struct kvm_vcpu *vcpu, struct kvm_mmu *mmu,
pkru_bits = (kvm_read_pkru(vcpu) >> (pte_pkey * 2)) & 3;
/* clear present bit, replace PFEC.RSVD with ACC_USER_MASK. */
offset = pfec - 1 +
offset = (pfec & ~1) +
((pte_access & PT_USER_MASK) << (PFERR_RSVD_BIT - PT_USER_SHIFT));
pkru_bits &= mmu->pkru_mask >> offset;
pfec |= -pkru_bits & PFERR_PK_MASK;
errcode |= -pkru_bits & PFERR_PK_MASK;
fault |= (pkru_bits != 0);
}
return -(uint32_t)fault & pfec;
return -(u32)fault & errcode;
}
void kvm_mmu_invalidate_zap_all_pages(struct kvm *kvm);

2
arch/x86/kvm/paging_tmpl.h
View file

@ -360,7 +360,7 @@ retry_walk:
goto error;
if (unlikely(is_rsvd_bits_set(mmu, pte, walker->level))) {
errcode |= PFERR_RSVD_MASK | PFERR_PRESENT_MASK;
errcode = PFERR_RSVD_MASK | PFERR_PRESENT_MASK;
goto error;
}

10
arch/x86/kvm/x86.c
View file

@ -700,7 +700,6 @@ static int __kvm_set_xcr(struct kvm_vcpu *vcpu, u32 index, u64 xcr)
if ((xcr0 & XFEATURE_MASK_AVX512) != XFEATURE_MASK_AVX512)
return 1;
}
kvm_put_guest_xcr0(vcpu);
vcpu->arch.xcr0 = xcr0;
if ((xcr0 ^ old_xcr0) & XFEATURE_MASK_EXTEND)
@ -6590,8 +6589,6 @@ static int vcpu_enter_guest(struct kvm_vcpu *vcpu)
kvm_x86_ops->prepare_guest_switch(vcpu);
if (vcpu->fpu_active)
kvm_load_guest_fpu(vcpu);
kvm_load_guest_xcr0(vcpu);
vcpu->mode = IN_GUEST_MODE;
srcu_read_unlock(&vcpu->kvm->srcu, vcpu->srcu_idx);
@ -6618,6 +6615,8 @@ static int vcpu_enter_guest(struct kvm_vcpu *vcpu)
goto cancel_injection;
}
kvm_load_guest_xcr0(vcpu);
if (req_immediate_exit)
smp_send_reschedule(vcpu->cpu);
@ -6667,6 +6666,8 @@ static int vcpu_enter_guest(struct kvm_vcpu *vcpu)
vcpu->mode = OUTSIDE_GUEST_MODE;
smp_wmb();
kvm_put_guest_xcr0(vcpu);
/* Interrupt is enabled by handle_external_intr() */
kvm_x86_ops->handle_external_intr(vcpu);
@ -7314,7 +7315,6 @@ void kvm_load_guest_fpu(struct kvm_vcpu *vcpu)
* and assume host would use all available bits.
* Guest xcr0 would be loaded later.
*/
kvm_put_guest_xcr0(vcpu);
vcpu->guest_fpu_loaded = 1;
__kernel_fpu_begin();
__copy_kernel_to_fpregs(&vcpu->arch.guest_fpu.state);
@ -7323,8 +7323,6 @@ void kvm_load_guest_fpu(struct kvm_vcpu *vcpu)
void kvm_put_guest_fpu(struct kvm_vcpu *vcpu)
{
kvm_put_guest_xcr0(vcpu);
if (!vcpu->guest_fpu_loaded) {
vcpu->fpu_counter = 0;
return;

13
block/partition-generic.c
View file

@ -361,15 +361,20 @@ struct hd_struct *add_partition(struct gendisk *disk, int partno,
goto out_del;
}
err = hd_ref_init(p);
if (err) {
if (flags & ADDPART_FLAG_WHOLEDISK)
goto out_remove_file;
goto out_del;
}
/* everything is up and running, commence */
rcu_assign_pointer(ptbl->part[partno], p);
/* suppress uevent if the disk suppresses it */
if (!dev_get_uevent_suppress(ddev))
kobject_uevent(&pdev->kobj, KOBJ_ADD);
if (!hd_ref_init(p))
return p;
return p;
out_free_info:
free_part_info(p);
@ -378,6 +383,8 @@ out_free_stats:
out_free:
kfree(p);
return ERR_PTR(err);
out_remove_file:
device_remove_file(pdev, &dev_attr_whole_disk);
out_del:
kobject_put(p->holder_dir);
device_del(pdev);

6
drivers/block/loop.c
View file

@ -488,6 +488,12 @@ static int lo_rw_aio(struct loop_device *lo, struct loop_cmd *cmd,
bvec = __bvec_iter_bvec(bio->bi_io_vec, bio->bi_iter);
iov_iter_bvec(&iter, ITER_BVEC | rw, bvec,
bio_segments(bio), blk_rq_bytes(cmd->rq));
/*
* This bio may be started from the middle of the 'bvec'
* because of bio splitting, so offset from the bvec must
* be passed to iov iterator
*/
iter.iov_offset = bio->bi_iter.bi_bvec_done;
cmd->iocb.ki_pos = pos;
cmd->iocb.ki_filp = file;

2
drivers/bus/mvebu-mbus.c
View file

@ -972,7 +972,7 @@ int mvebu_mbus_get_dram_win_info(phys_addr_t phyaddr, u8 *target, u8 *attr)
}
}
pr_err("invalid dram address 0x%x\n", phyaddr);
pr_err("invalid dram address %pa\n", &phyaddr);
return -EINVAL;
}
EXPORT_SYMBOL_GPL(mvebu_mbus_get_dram_win_info);

2
drivers/bus/uniphier-system-bus.c
View file

@ -108,7 +108,7 @@ static int uniphier_system_bus_check_overlap(
for (i = 0; i < ARRAY_SIZE(priv->bank); i++) {
for (j = i + 1; j < ARRAY_SIZE(priv->bank); j++) {
if (priv->bank[i].end > priv->bank[j].base ||
if (priv->bank[i].end > priv->bank[j].base &&
priv->bank[i].base < priv->bank[j].end) {
dev_err(priv->dev,
"region overlap between bank%d and bank%d\n",

1
drivers/char/hw_random/bcm63xx-rng.c
View file

@ -12,6 +12,7 @@
#include <linux/clk.h>
#include <linux/platform_device.h>
#include <linux/hw_random.h>
#include <linux/of.h>
#define RNG_CTRL 0x00
#define RNG_EN (1 << 0)

34
drivers/dma/dw/core.c
View file

@ -130,26 +130,14 @@ static void dwc_desc_put(struct dw_dma_chan *dwc, struct dw_desc *desc)
static void dwc_initialize(struct dw_dma_chan *dwc)
{
struct dw_dma *dw = to_dw_dma(dwc->chan.device);
struct dw_dma_slave *dws = dwc->chan.private;
u32 cfghi = DWC_CFGH_FIFO_MODE;
u32 cfglo = DWC_CFGL_CH_PRIOR(dwc->priority);
if (dwc->initialized == true)
return;
if (dws) {
/*
* We need controller-specific data to set up slave
* transfers.
*/
BUG_ON(!dws->dma_dev || dws->dma_dev != dw->dma.dev);
cfghi |= DWC_CFGH_DST_PER(dws->dst_id);
cfghi |= DWC_CFGH_SRC_PER(dws->src_id);
} else {
cfghi |= DWC_CFGH_DST_PER(dwc->dst_id);
cfghi |= DWC_CFGH_SRC_PER(dwc->src_id);
}
cfghi |= DWC_CFGH_DST_PER(dwc->dst_id);
cfghi |= DWC_CFGH_SRC_PER(dwc->src_id);
channel_writel(dwc, CFG_LO, cfglo);
channel_writel(dwc, CFG_HI, cfghi);
@ -941,7 +929,7 @@ bool dw_dma_filter(struct dma_chan *chan, void *param)
struct dw_dma_chan *dwc = to_dw_dma_chan(chan);
struct dw_dma_slave *dws = param;
if (!dws || dws->dma_dev != chan->device->dev)
if (dws->dma_dev != chan->device->dev)
return false;
/* We have to copy data since dws can be temporary storage */
@ -1165,6 +1153,14 @@ static int dwc_alloc_chan_resources(struct dma_chan *chan)
* doesn't mean what you think it means), and status writeback.
*/
/*
* We need controller-specific data to set up slave transfers.
*/
if (chan->private && !dw_dma_filter(chan, chan->private)) {
dev_warn(chan2dev(chan), "Wrong controller-specific data\n");
return -EINVAL;
}
/* Enable controller here if needed */
if (!dw->in_use)
dw_dma_on(dw);
@ -1226,6 +1222,14 @@ static void dwc_free_chan_resources(struct dma_chan *chan)
spin_lock_irqsave(&dwc->lock, flags);
list_splice_init(&dwc->free_list, &list);
dwc->descs_allocated = 0;
/* Clear custom channel configuration */
dwc->src_id = 0;
dwc->dst_id = 0;
dwc->src_master = 0;
dwc->dst_master = 0;
dwc->initialized = false;
/* Disable interrupts */

63
drivers/dma/edma.c
View file

@ -1238,6 +1238,7 @@ static struct dma_async_tx_descriptor *edma_prep_dma_cyclic(
struct edma_desc *edesc;
dma_addr_t src_addr, dst_addr;
enum dma_slave_buswidth dev_width;
bool use_intermediate = false;
u32 burst;
int i, ret, nslots;
@ -1279,8 +1280,21 @@ static struct dma_async_tx_descriptor *edma_prep_dma_cyclic(
* but the synchronization is difficult to achieve with Cyclic and
* cannot be guaranteed, so we error out early.
*/
if (nslots > MAX_NR_SG)
return NULL;
if (nslots > MAX_NR_SG) {
/*
* If the burst and period sizes are the same, we can put
* the full buffer into a single period and activate
* intermediate interrupts. This will produce interrupts
* after each burst, which is also after each desired period.
*/
if (burst == period_len) {
period_len = buf_len;
nslots = 2;
use_intermediate = true;
} else {
return NULL;
}
}
edesc = kzalloc(sizeof(*edesc) + nslots * sizeof(edesc->pset[0]),
GFP_ATOMIC);
@ -1358,8 +1372,13 @@ static struct dma_async_tx_descriptor *edma_prep_dma_cyclic(
/*
* Enable period interrupt only if it is requested
*/
if (tx_flags & DMA_PREP_INTERRUPT)
if (tx_flags & DMA_PREP_INTERRUPT) {
edesc->pset[i].param.opt |= TCINTEN;
/* Also enable intermediate interrupts if necessary */
if (use_intermediate)
edesc->pset[i].param.opt |= ITCINTEN;
}
}
/* Place the cyclic channel to highest priority queue */
@ -1570,32 +1589,6 @@ static irqreturn_t dma_ccerr_handler(int irq, void *data)
return IRQ_HANDLED;
}
static void edma_tc_set_pm_state(struct edma_tc *tc, bool enable)
{
struct platform_device *tc_pdev;
int ret;
if (!IS_ENABLED(CONFIG_OF) || !tc)
return;
tc_pdev = of_find_device_by_node(tc->node);
if (!tc_pdev) {
pr_err("%s: TPTC device is not found\n", __func__);
return;
}
if (!pm_runtime_enabled(&tc_pdev->dev))
pm_runtime_enable(&tc_pdev->dev);
if (enable)
ret = pm_runtime_get_sync(&tc_pdev->dev);
else
ret = pm_runtime_put_sync(&tc_pdev->dev);
if (ret < 0)
pr_err("%s: pm_runtime_%s_sync() failed for %s\n", __func__,
enable ? "get" : "put", dev_name(&tc_pdev->dev));
}
/* Alloc channel resources */
static int edma_alloc_chan_resources(struct dma_chan *chan)
{
@ -1632,8 +1625,6 @@ static int edma_alloc_chan_resources(struct dma_chan *chan)
EDMA_CHAN_SLOT(echan->ch_num), chan->chan_id,
echan->hw_triggered ? "HW" : "SW");
edma_tc_set_pm_state(echan->tc, true);
return 0;
err_slot:
@ -1670,7 +1661,6 @@ static void edma_free_chan_resources(struct dma_chan *chan)
echan->alloced = false;
}
edma_tc_set_pm_state(echan->tc, false);
echan->tc = NULL;
echan->hw_triggered = false;
@ -2417,10 +2407,8 @@ static int edma_pm_suspend(struct device *dev)
int i;
for (i = 0; i < ecc->num_channels; i++) {
if (echan[i].alloced) {
if (echan[i].alloced)
edma_setup_interrupt(&echan[i], false);
edma_tc_set_pm_state(echan[i].tc, false);
}
}
return 0;
@ -2450,8 +2438,6 @@ static int edma_pm_resume(struct device *dev)
/* Set up channel -> slot mapping for the entry slot */
edma_set_chmap(&echan[i], echan[i].slot[0]);
edma_tc_set_pm_state(echan[i].tc, true);
}
}
@ -2475,7 +2461,8 @@ static struct platform_driver edma_driver = {
static int edma_tptc_probe(struct platform_device *pdev)
{
return 0;
pm_runtime_enable(&pdev->dev);
return pm_runtime_get_sync(&pdev->dev);
}
static struct platform_driver edma_tptc_driver = {

13
drivers/dma/hsu/hsu.c
View file

@ -64,10 +64,10 @@ static void hsu_dma_chan_start(struct hsu_dma_chan *hsuc)
if (hsuc->direction == DMA_MEM_TO_DEV) {
bsr = config->dst_maxburst;
mtsr = config->dst_addr_width;
mtsr = config->src_addr_width;
} else if (hsuc->direction == DMA_DEV_TO_MEM) {
bsr = config->src_maxburst;
mtsr = config->src_addr_width;
mtsr = config->dst_addr_width;
}
hsu_chan_disable(hsuc);
@ -135,7 +135,7 @@ static u32 hsu_dma_chan_get_sr(struct hsu_dma_chan *hsuc)
sr = hsu_chan_readl(hsuc, HSU_CH_SR);
spin_unlock_irqrestore(&hsuc->vchan.lock, flags);
return sr;
return sr & ~(HSU_CH_SR_DESCE_ANY | HSU_CH_SR_CDESC_ANY);
}
irqreturn_t hsu_dma_irq(struct hsu_dma_chip *chip, unsigned short nr)
@ -254,10 +254,13 @@ static void hsu_dma_issue_pending(struct dma_chan *chan)
static size_t hsu_dma_active_desc_size(struct hsu_dma_chan *hsuc)
{
struct hsu_dma_desc *desc = hsuc->desc;
size_t bytes = desc->length;
size_t bytes = 0;
int i;
i = desc->active % HSU_DMA_CHAN_NR_DESC;
for (i = desc->active; i < desc->nents; i++)
bytes += desc->sg[i].len;
i = HSU_DMA_CHAN_NR_DESC - 1;
do {
bytes += hsu_chan_readl(hsuc, HSU_CH_DxTSR(i));
} while (--i >= 0);

3
drivers/dma/hsu/hsu.h
View file

@ -41,6 +41,9 @@
#define HSU_CH_SR_DESCTO(x) BIT(8 + (x))
#define HSU_CH_SR_DESCTO_ANY (BIT(11) | BIT(10) | BIT(9) | BIT(8))
#define HSU_CH_SR_CHE BIT(15)
#define HSU_CH_SR_DESCE(x) BIT(16 + (x))
#define HSU_CH_SR_DESCE_ANY (BIT(19) | BIT(18) | BIT(17) | BIT(16))
#define HSU_CH_SR_CDESC_ANY (BIT(31) | BIT(30))
/* Bits in HSU_CH_CR */
#define HSU_CH_CR_CHA BIT(0)

26
drivers/dma/omap-dma.c
View file

@ -48,6 +48,7 @@ struct omap_chan {
unsigned dma_sig;
bool cyclic;
bool paused;
bool running;
int dma_ch;
struct omap_desc *desc;
@ -294,6 +295,8 @@ static void omap_dma_start(struct omap_chan *c, struct omap_desc *d)
/* Enable channel */
omap_dma_chan_write(c, CCR, d->ccr | CCR_ENABLE);
c->running = true;
}
static void omap_dma_stop(struct omap_chan *c)
@ -355,6 +358,8 @@ static void omap_dma_stop(struct omap_chan *c)
omap_dma_chan_write(c, CLNK_CTRL, val);
}
c->running = false;
}
static void omap_dma_start_sg(struct omap_chan *c, struct omap_desc *d,
@ -673,15 +678,20 @@ static enum dma_status omap_dma_tx_status(struct dma_chan *chan,
struct omap_chan *c = to_omap_dma_chan(chan);
struct virt_dma_desc *vd;
enum dma_status ret;
uint32_t ccr;
unsigned long flags;
ccr = omap_dma_chan_read(c, CCR);
/* The channel is no longer active, handle the completion right away */
if (!(ccr & CCR_ENABLE))
omap_dma_callback(c->dma_ch, 0, c);
ret = dma_cookie_status(chan, cookie, txstate);
if (!c->paused && c->running) {
uint32_t ccr = omap_dma_chan_read(c, CCR);
/*
* The channel is no longer active, set the return value
* accordingly
*/
if (!(ccr & CCR_ENABLE))
ret = DMA_COMPLETE;
}
if (ret == DMA_COMPLETE || !txstate)
return ret;
@ -945,9 +955,7 @@ static struct dma_async_tx_descriptor *omap_dma_prep_dma_memcpy(
d->ccr = c->ccr;
d->ccr |= CCR_DST_AMODE_POSTINC | CCR_SRC_AMODE_POSTINC;
d->cicr = CICR_DROP_IE;
if (tx_flags & DMA_PREP_INTERRUPT)
d->cicr |= CICR_FRAME_IE;
d->cicr = CICR_DROP_IE | CICR_FRAME_IE;
d->csdp = data_type;

2
drivers/dma/xilinx/xilinx_vdma.c
View file

@ -1236,7 +1236,7 @@ static struct dma_chan *of_dma_xilinx_xlate(struct of_phandle_args *dma_spec,
struct xilinx_vdma_device *xdev = ofdma->of_dma_data;
int chan_id = dma_spec->args[0];
if (chan_id >= XILINX_VDMA_MAX_CHANS_PER_DEVICE)
if (chan_id >= XILINX_VDMA_MAX_CHANS_PER_DEVICE || !xdev->chan[chan_id])
return NULL;
return dma_get_slave_channel(&xdev->chan[chan_id]->common);

3
drivers/extcon/extcon-palmas.c
View file

@ -348,8 +348,7 @@ static int palmas_usb_probe(struct platform_device *pdev)
palmas_vbus_irq_handler,
IRQF_TRIGGER_FALLING |
IRQF_TRIGGER_RISING |
IRQF_ONESHOT |
IRQF_EARLY_RESUME,
IRQF_ONESHOT,
"palmas_usb_vbus",
palmas_usb);
if (status < 0) {

18
drivers/firmware/efi/arm-init.c
View file

@ -203,7 +203,19 @@ void __init efi_init(void)
reserve_regions();
early_memunmap(memmap.map, params.mmap_size);
memblock_mark_nomap(params.mmap & PAGE_MASK,
PAGE_ALIGN(params.mmap_size +
(params.mmap & ~PAGE_MASK)));
if (IS_ENABLED(CONFIG_ARM)) {
/*
* ARM currently does not allow ioremap_cache() to be called on
* memory regions that are covered by struct page. So remove the
* UEFI memory map from the linear mapping.
*/
memblock_mark_nomap(params.mmap & PAGE_MASK,
PAGE_ALIGN(params.mmap_size +
(params.mmap & ~PAGE_MASK)));
} else {
memblock_reserve(params.mmap & PAGE_MASK,
PAGE_ALIGN(params.mmap_size +
(params.mmap & ~PAGE_MASK)));
}
}

1
drivers/gpu/drm/amd/amdgpu/amdgpu.h
View file

@ -2034,6 +2034,7 @@ struct amdgpu_device {
/* tracking pinned memory */
u64 vram_pin_size;
u64 invisible_pin_size;
u64 gart_pin_size;
/* amdkfd interface */

2
drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c
View file

@ -384,7 +384,7 @@ static int amdgpu_info_ioctl(struct drm_device *dev, void *data, struct drm_file
vram_gtt.vram_size = adev->mc.real_vram_size;
vram_gtt.vram_size -= adev->vram_pin_size;
vram_gtt.vram_cpu_accessible_size = adev->mc.visible_vram_size;
vram_gtt.vram_cpu_accessible_size -= adev->vram_pin_size;
vram_gtt.vram_cpu_accessible_size -= (adev->vram_pin_size - adev->invisible_pin_size);
vram_gtt.gtt_size = adev->mc.gtt_size;
vram_gtt.gtt_size -= adev->gart_pin_size;
return copy_to_user(out, &vram_gtt,

12
drivers/gpu/drm/amd/amdgpu/amdgpu_object.c
View file

@ -424,9 +424,11 @@ int amdgpu_bo_pin_restricted(struct amdgpu_bo *bo, u32 domain,
bo->pin_count = 1;
if (gpu_addr != NULL)
*gpu_addr = amdgpu_bo_gpu_offset(bo);
if (domain == AMDGPU_GEM_DOMAIN_VRAM)
if (domain == AMDGPU_GEM_DOMAIN_VRAM) {
bo->adev->vram_pin_size += amdgpu_bo_size(bo);
else
if (bo->flags & AMDGPU_GEM_CREATE_NO_CPU_ACCESS)
bo->adev->invisible_pin_size += amdgpu_bo_size(bo);
} else
bo->adev->gart_pin_size += amdgpu_bo_size(bo);
} else {
dev_err(bo->adev->dev, "%p pin failed\n", bo);
@ -456,9 +458,11 @@ int amdgpu_bo_unpin(struct amdgpu_bo *bo)
}
r = ttm_bo_validate(&bo->tbo, &bo->placement, false, false);
if (likely(r == 0)) {
if (bo->tbo.mem.mem_type == TTM_PL_VRAM)
if (bo->tbo.mem.mem_type == TTM_PL_VRAM) {
bo->adev->vram_pin_size -= amdgpu_bo_size(bo);
else
if (bo->flags & AMDGPU_GEM_CREATE_NO_CPU_ACCESS)
bo->adev->invisible_pin_size -= amdgpu_bo_size(bo);
} else
bo->adev->gart_pin_size -= amdgpu_bo_size(bo);
} else {
dev_err(bo->adev->dev, "%p validate failed for unpin\n", bo);

2
drivers/gpu/drm/amd/amdgpu/tonga_ih.c
View file

@ -307,7 +307,7 @@ static int tonga_ih_sw_fini(void *handle)
amdgpu_irq_fini(adev);
amdgpu_ih_ring_fini(adev);
amdgpu_irq_add_domain(adev);
amdgpu_irq_remove_domain(adev);
return 0;
}

10
drivers/gpu/drm/drm_edid.c
View file

@ -205,7 +205,7 @@ static const struct drm_display_mode drm_dmt_modes[] = {
DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
/* 0x0f - 1024x768@43Hz, interlace */
{ DRM_MODE("1024x768i", DRM_MODE_TYPE_DRIVER, 44900, 1024, 1032,
1208, 1264, 0, 768, 768, 772, 817, 0,
1208, 1264, 0, 768, 768, 776, 817, 0,
DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC |
DRM_MODE_FLAG_INTERLACE) },
/* 0x10 - 1024x768@60Hz */
@ -522,12 +522,12 @@ static const struct drm_display_mode edid_est_modes[] = {
720, 840, 0, 480, 481, 484, 500, 0,
DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) }, /* 640x480@75Hz */
{ DRM_MODE("640x480", DRM_MODE_TYPE_DRIVER, 31500, 640, 664,
704, 832, 0, 480, 489, 491, 520, 0,
704, 832, 0, 480, 489, 492, 520, 0,
DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) }, /* 640x480@72Hz */
{ DRM_MODE("640x480", DRM_MODE_TYPE_DRIVER, 30240, 640, 704,
768, 864, 0, 480, 483, 486, 525, 0,
DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) }, /* 640x480@67Hz */
{ DRM_MODE("640x480", DRM_MODE_TYPE_DRIVER, 25200, 640, 656,
{ DRM_MODE("640x480", DRM_MODE_TYPE_DRIVER, 25175, 640, 656,
752, 800, 0, 480, 490, 492, 525, 0,
DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) }, /* 640x480@60Hz */
{ DRM_MODE("720x400", DRM_MODE_TYPE_DRIVER, 35500, 720, 738,
@ -539,7 +539,7 @@ static const struct drm_display_mode edid_est_modes[] = {
{ DRM_MODE("1280x1024", DRM_MODE_TYPE_DRIVER, 135000, 1280, 1296,
1440, 1688, 0, 1024, 1025, 1028, 1066, 0,
DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) }, /* 1280x1024@75Hz */
{ DRM_MODE("1024x768", DRM_MODE_TYPE_DRIVER, 78800, 1024, 1040,
{ DRM_MODE("1024x768", DRM_MODE_TYPE_DRIVER, 78750, 1024, 1040,
1136, 1312, 0, 768, 769, 772, 800, 0,
DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) }, /* 1024x768@75Hz */
{ DRM_MODE("1024x768", DRM_MODE_TYPE_DRIVER, 75000, 1024, 1048,
@ -2241,7 +2241,7 @@ drm_est3_modes(struct drm_connector *connector, struct detailed_timing *timing)
{
int i, j, m, modes = 0;
struct drm_display_mode *mode;
u8 *est = ((u8 *)timing) + 5;
u8 *est = ((u8 *)timing) + 6;
for (i = 0; i < 6; i++) {
for (j = 7; j >= 0; j--) {

2
drivers/gpu/drm/exynos/Kconfig
View file

@ -94,7 +94,7 @@ comment "Sub-drivers"
config DRM_EXYNOS_G2D
bool "G2D"
depends on !VIDEO_SAMSUNG_S5P_G2D
depends on VIDEO_SAMSUNG_S5P_G2D=n
select FRAME_VECTOR
help
Choose this option if you want to use Exynos G2D for DRM.

6
drivers/gpu/drm/exynos/Makefile
View file

@ -2,10 +2,10 @@
# Makefile for the drm device driver. This driver provides support for the
# Direct Rendering Infrastructure (DRI) in XFree86 4.1.0 and higher.
exynosdrm-y := exynos_drm_drv.o exynos_drm_crtc.o exynos_drm_fbdev.o \
exynos_drm_fb.o exynos_drm_gem.o exynos_drm_core.o \
exynos_drm_plane.o
exynosdrm-y := exynos_drm_drv.o exynos_drm_crtc.o exynos_drm_fb.o \
exynos_drm_gem.o exynos_drm_core.o exynos_drm_plane.o
exynosdrm-$(CONFIG_DRM_FBDEV_EMULATION) += exynos_drm_fbdev.o
exynosdrm-$(CONFIG_DRM_EXYNOS_IOMMU) += exynos_drm_iommu.o
exynosdrm-$(CONFIG_DRM_EXYNOS_FIMD) += exynos_drm_fimd.o
exynosdrm-$(CONFIG_DRM_EXYNOS5433_DECON) += exynos5433_drm_decon.o

2
drivers/gpu/drm/exynos/exynos_drm_core.c
View file

@ -101,7 +101,7 @@ int exynos_drm_subdrv_open(struct drm_device *dev, struct drm_file *file)
return 0;
err:
list_for_each_entry_reverse(subdrv, &subdrv->list, list) {
list_for_each_entry_continue_reverse(subdrv, &exynos_drm_subdrv_list, list) {
if (subdrv->close)
subdrv->close(dev, subdrv->dev, file);
}

11
drivers/gpu/drm/exynos/exynos_drm_fb.c
View file

@ -199,17 +199,6 @@ dma_addr_t exynos_drm_fb_dma_addr(struct drm_framebuffer *fb, int index)
return exynos_fb->dma_addr[index];
}
static void exynos_drm_output_poll_changed(struct drm_device *dev)
{
struct exynos_drm_private *private = dev->dev_private;
struct drm_fb_helper *fb_helper = private->fb_helper;
if (fb_helper)
drm_fb_helper_hotplug_event(fb_helper);
else
exynos_drm_fbdev_init(dev);
}
static const struct drm_mode_config_funcs exynos_drm_mode_config_funcs = {
.fb_create = exynos_user_fb_create,
.output_poll_changed = exynos_drm_output_poll_changed,

11
drivers/gpu/drm/exynos/exynos_drm_fbdev.c
View file

@ -317,3 +317,14 @@ void exynos_drm_fbdev_restore_mode(struct drm_device *dev)
drm_fb_helper_restore_fbdev_mode_unlocked(private->fb_helper);
}
void exynos_drm_output_poll_changed(struct drm_device *dev)
{
struct exynos_drm_private *private = dev->dev_private;
struct drm_fb_helper *fb_helper = private->fb_helper;
if (fb_helper)
drm_fb_helper_hotplug_event(fb_helper);
else
exynos_drm_fbdev_init(dev);
}

23
drivers/gpu/drm/exynos/exynos_drm_fbdev.h
View file

@ -15,9 +15,30 @@
#ifndef _EXYNOS_DRM_FBDEV_H_
#define _EXYNOS_DRM_FBDEV_H_
#ifdef CONFIG_DRM_FBDEV_EMULATION
int exynos_drm_fbdev_init(struct drm_device *dev);
int exynos_drm_fbdev_reinit(struct drm_device *dev);
void exynos_drm_fbdev_fini(struct drm_device *dev);
void exynos_drm_fbdev_restore_mode(struct drm_device *dev);
void exynos_drm_output_poll_changed(struct drm_device *dev);
#else
static inline int exynos_drm_fbdev_init(struct drm_device *dev)
{
return 0;
}
static inline void exynos_drm_fbdev_fini(struct drm_device *dev)
{
}
static inline void exynos_drm_fbdev_restore_mode(struct drm_device *dev)
{
}
#define exynos_drm_output_poll_changed (NULL)
#endif
#endif

2
drivers/gpu/drm/exynos/exynos_drm_fimd.c
View file

@ -888,7 +888,7 @@ static void fimd_dp_clock_enable(struct exynos_drm_crtc *crtc, bool enable)
* clock. On these SoCs the bootloader may enable it but any
* power domain off/on will reset it to disable state.
*/
if (ctx->driver_data != &exynos5_fimd_driver_data ||
if (ctx->driver_data != &exynos5_fimd_driver_data &&
ctx->driver_data != &exynos5420_fimd_driver_data)
return;

3
drivers/gpu/drm/exynos/exynos_drm_mic.c
View file

@ -129,7 +129,7 @@ static void mic_set_path(struct exynos_mic *mic, bool enable)
} else
val &= ~(MIC0_RGB_MUX | MIC0_I80_MUX | MIC0_ON_MUX);
regmap_write(mic->sysreg, DSD_CFG_MUX, val);
ret = regmap_write(mic->sysreg, DSD_CFG_MUX, val);
if (ret)
DRM_ERROR("mic: Failed to read system register\n");
}
@ -457,6 +457,7 @@ static int exynos_mic_probe(struct platform_device *pdev)
"samsung,disp-syscon");
if (IS_ERR(mic->sysreg)) {
DRM_ERROR("mic: Failed to get system register.\n");
ret = PTR_ERR(mic->sysreg);
goto err;
}

12
drivers/gpu/drm/exynos/exynos_drm_plane.c
View file

@ -11,9 +11,10 @@
#include <drm/drmP.h>
#include <drm/exynos_drm.h>
#include <drm/drm_plane_helper.h>
#include <drm/drm_atomic.h>
#include <drm/drm_atomic_helper.h>
#include <drm/drm_plane_helper.h>
#include <drm/exynos_drm.h>
#include "exynos_drm_drv.h"
#include "exynos_drm_crtc.h"
#include "exynos_drm_fb.h"
@ -57,11 +58,12 @@ static int exynos_plane_get_size(int start, unsigned length, unsigned last)
}
static void exynos_plane_mode_set(struct exynos_drm_plane_state *exynos_state)
{
struct drm_plane_state *state = &exynos_state->base;
struct drm_crtc *crtc = exynos_state->base.crtc;
struct drm_display_mode *mode = &crtc->state->adjusted_mode;
struct drm_crtc *crtc = state->crtc;
struct drm_crtc_state *crtc_state =
drm_atomic_get_existing_crtc_state(state->state, crtc);
struct drm_display_mode *mode = &crtc_state->adjusted_mode;
int crtc_x, crtc_y;
unsigned int crtc_w, crtc_h;
unsigned int src_x, src_y;

4
drivers/gpu/drm/i915/i915_drv.c
View file

@ -758,10 +758,10 @@ static int i915_drm_resume(struct drm_device *dev)
dev_priv->display.hpd_irq_setup(dev);
spin_unlock_irq(&dev_priv->irq_lock);
intel_display_resume(dev);
intel_dp_mst_resume(dev);
intel_display_resume(dev);
/*
* ... but also need to make sure that hotplug processing
* doesn't cause havoc. Like in the driver load code we don't

4
drivers/gpu/drm/i915/i915_irq.c
View file

@ -1829,7 +1829,7 @@ static irqreturn_t cherryview_irq_handler(int irq, void *arg)
/* IRQs are synced during runtime_suspend, we don't require a wakeref */
disable_rpm_wakeref_asserts(dev_priv);
for (;;) {
do {
master_ctl = I915_READ(GEN8_MASTER_IRQ) & ~GEN8_MASTER_IRQ_CONTROL;
iir = I915_READ(VLV_IIR);
@ -1857,7 +1857,7 @@ static irqreturn_t cherryview_irq_handler(int irq, void *arg)
I915_WRITE(GEN8_MASTER_IRQ, DE_MASTER_IRQ_CONTROL);
POSTING_READ(GEN8_MASTER_IRQ);
}
} while (0);
enable_rpm_wakeref_asserts(dev_priv);

6
drivers/gpu/drm/i915/intel_dp_mst.c
View file

@ -506,6 +506,8 @@ static void intel_dp_destroy_mst_connector(struct drm_dp_mst_topology_mgr *mgr,
struct intel_connector *intel_connector = to_intel_connector(connector);
struct drm_device *dev = connector->dev;
intel_connector->unregister(intel_connector);
/* need to nuke the connector */
drm_modeset_lock_all(dev);
if (connector->state->crtc) {
@ -519,11 +521,7 @@ static void intel_dp_destroy_mst_connector(struct drm_dp_mst_topology_mgr *mgr,
WARN(ret, "Disabling mst crtc failed with %i\n", ret);
}
drm_modeset_unlock_all(dev);
intel_connector->unregister(intel_connector);
drm_modeset_lock_all(dev);
intel_connector_remove_from_fbdev(intel_connector);
drm_connector_cleanup(connector);
drm_modeset_unlock_all(dev);

5
drivers/gpu/drm/i915/intel_lvds.c
View file

@ -478,11 +478,8 @@ static int intel_lid_notify(struct notifier_block *nb, unsigned long val,
* and as part of the cleanup in the hw state restore we also redisable
* the vga plane.
*/
if (!HAS_PCH_SPLIT(dev)) {
drm_modeset_lock_all(dev);
if (!HAS_PCH_SPLIT(dev))
intel_display_resume(dev);
drm_modeset_unlock_all(dev);
}
dev_priv->modeset_restore = MODESET_DONE;

13
drivers/gpu/drm/qxl/qxl_display.c
View file

@ -375,10 +375,15 @@ static int qxl_crtc_cursor_set2(struct drm_crtc *crtc,
qxl_bo_kunmap(user_bo);
qcrtc->cur_x += qcrtc->hot_spot_x - hot_x;
qcrtc->cur_y += qcrtc->hot_spot_y - hot_y;
qcrtc->hot_spot_x = hot_x;
qcrtc->hot_spot_y = hot_y;
cmd = (struct qxl_cursor_cmd *)qxl_release_map(qdev, release);
cmd->type = QXL_CURSOR_SET;
cmd->u.set.position.x = qcrtc->cur_x;
cmd->u.set.position.y = qcrtc->cur_y;
cmd->u.set.position.x = qcrtc->cur_x + qcrtc->hot_spot_x;
cmd->u.set.position.y = qcrtc->cur_y + qcrtc->hot_spot_y;
cmd->u.set.shape = qxl_bo_physical_address(qdev, cursor_bo, 0);
@ -441,8 +446,8 @@ static int qxl_crtc_cursor_move(struct drm_crtc *crtc,
cmd = (struct qxl_cursor_cmd *)qxl_release_map(qdev, release);
cmd->type = QXL_CURSOR_MOVE;
cmd->u.position.x = qcrtc->cur_x;
cmd->u.position.y = qcrtc->cur_y;
cmd->u.position.x = qcrtc->cur_x + qcrtc->hot_spot_x;
cmd->u.position.y = qcrtc->cur_y + qcrtc->hot_spot_y;
qxl_release_unmap(qdev, release, &cmd->release_info);
qxl_push_cursor_ring_release(qdev, release, QXL_CMD_CURSOR, false);

2
drivers/gpu/drm/qxl/qxl_drv.h
View file

@ -135,6 +135,8 @@ struct qxl_crtc {
int index;
int cur_x;
int cur_y;
int hot_spot_x;
int hot_spot_y;
};
struct qxl_output {

2
drivers/gpu/drm/radeon/ni_reg.h
View file

@ -109,6 +109,8 @@
#define NI_DP_MSE_SAT2 0x7398
#define NI_DP_MSE_SAT_UPDATE 0x739c
# define NI_DP_MSE_SAT_UPDATE_MASK 0x3
# define NI_DP_MSE_16_MTP_KEEPOUT 0x100
#define NI_DIG_BE_CNTL 0x7140
# define NI_DIG_FE_SOURCE_SELECT(x) (((x) & 0x7f) << 8)

31
drivers/gpu/drm/radeon/radeon_dp_mst.c
View file

@ -89,8 +89,16 @@ static int radeon_dp_mst_set_stream_attrib(struct radeon_encoder *primary,
WREG32(NI_DP_MSE_SAT_UPDATE + primary->offset, 1);
do {
unsigned value1, value2;
udelay(10);
temp = RREG32(NI_DP_MSE_SAT_UPDATE + primary->offset);
} while ((temp & 0x1) && retries++ < 10000);
value1 = temp & NI_DP_MSE_SAT_UPDATE_MASK;
value2 = temp & NI_DP_MSE_16_MTP_KEEPOUT;
if (!value1 && !value2)
break;
} while (retries++ < 50);
if (retries == 10000)
DRM_ERROR("timed out waitin for SAT update %d\n", primary->offset);
@ -150,7 +158,7 @@ static int radeon_dp_mst_update_stream_attribs(struct radeon_connector *mst_conn
return 0;
}
static int radeon_dp_mst_set_vcp_size(struct radeon_encoder *mst, uint32_t x, uint32_t y)
static int radeon_dp_mst_set_vcp_size(struct radeon_encoder *mst, s64 avg_time_slots_per_mtp)
{
struct drm_device *dev = mst->base.dev;
struct radeon_device *rdev = dev->dev_private;
@ -158,6 +166,8 @@ static int radeon_dp_mst_set_vcp_size(struct radeon_encoder *mst, uint32_t x, ui
uint32_t val, temp;
uint32_t offset = radeon_atom_set_enc_offset(mst_enc->fe);
int retries = 0;
uint32_t x = drm_fixp2int(avg_time_slots_per_mtp);
uint32_t y = drm_fixp2int_ceil((avg_time_slots_per_mtp - x) << 26);
val = NI_DP_MSE_RATE_X(x) | NI_DP_MSE_RATE_Y(y);
@ -165,6 +175,7 @@ static int radeon_dp_mst_set_vcp_size(struct radeon_encoder *mst, uint32_t x, ui
do {
temp = RREG32(NI_DP_MSE_RATE_UPDATE + offset);
udelay(10);
} while ((temp & 0x1) && (retries++ < 10000));
if (retries >= 10000)
@ -246,14 +257,8 @@ radeon_dp_mst_connector_destroy(struct drm_connector *connector)
kfree(radeon_connector);
}
static int radeon_connector_dpms(struct drm_connector *connector, int mode)
{
DRM_DEBUG_KMS("\n");
return 0;
}
static const struct drm_connector_funcs radeon_dp_mst_connector_funcs = {
.dpms = radeon_connector_dpms,
.dpms = drm_helper_connector_dpms,
.detect = radeon_dp_mst_detect,
.fill_modes = drm_helper_probe_single_connector_modes,
.destroy = radeon_dp_mst_connector_destroy,
@ -394,7 +399,7 @@ radeon_mst_encoder_dpms(struct drm_encoder *encoder, int mode)
struct drm_crtc *crtc;
struct radeon_crtc *radeon_crtc;
int ret, slots;
s64 fixed_pbn, fixed_pbn_per_slot, avg_time_slots_per_mtp;
if (!ASIC_IS_DCE5(rdev)) {
DRM_ERROR("got mst dpms on non-DCE5\n");
return;
@ -456,7 +461,11 @@ radeon_mst_encoder_dpms(struct drm_encoder *encoder, int mode)
mst_enc->enc_active = true;
radeon_dp_mst_update_stream_attribs(radeon_connector->mst_port, primary);
radeon_dp_mst_set_vcp_size(radeon_encoder, slots, 0);
fixed_pbn = drm_int2fixp(mst_enc->pbn);
fixed_pbn_per_slot = drm_int2fixp(radeon_connector->mst_port->mst_mgr.pbn_div);
avg_time_slots_per_mtp = drm_fixp_div(fixed_pbn, fixed_pbn_per_slot);
radeon_dp_mst_set_vcp_size(radeon_encoder, avg_time_slots_per_mtp);
atombios_dig_encoder_setup2(&primary->base, ATOM_ENCODER_CMD_DP_VIDEO_ON, 0,
mst_enc->fe);

6
drivers/lguest/interrupts_and_traps.c
View file

@ -331,7 +331,7 @@ void set_interrupt(struct lg_cpu *cpu, unsigned int irq)
* Actually now I think of it, it's possible that Ron *is* half the Plan 9
* userbase. Oh well.
*/
static bool could_be_syscall(unsigned int num)
bool could_be_syscall(unsigned int num)
{
/* Normal Linux IA32_SYSCALL_VECTOR or reserved vector? */
return num == IA32_SYSCALL_VECTOR || num == syscall_vector;
@ -416,6 +416,10 @@ bool deliver_trap(struct lg_cpu *cpu, unsigned int num)
*
* This routine indicates if a particular trap number could be delivered
* directly.
*
* Unfortunately, Linux 4.6 started using an interrupt gate instead of a
* trap gate for syscalls, so this trick is ineffective. See Mastery for
* how we could do this anyway...
*/
static bool direct_trap(unsigned int num)
{

1
drivers/lguest/lg.h
View file

@ -167,6 +167,7 @@ void guest_set_clockevent(struct lg_cpu *cpu, unsigned long delta);
bool send_notify_to_eventfd(struct lg_cpu *cpu);
void init_clockdev(struct lg_cpu *cpu);
bool check_syscall_vector(struct lguest *lg);
bool could_be_syscall(unsigned int num);
int init_interrupts(void);
void free_interrupts(void);

6
drivers/lguest/x86/core.c
View file

@ -429,8 +429,12 @@ void lguest_arch_handle_trap(struct lg_cpu *cpu)
return;
break;
case 32 ... 255:
/* This might be a syscall. */
if (could_be_syscall(cpu->regs->trapnum))
break;
/*
* These values mean a real interrupt occurred, in which case
* Other values mean a real interrupt occurred, in which case
* the Host handler has already been run. We just do a
* friendly check if another process should now be run, then
* return to run the Guest again.

16
drivers/mailbox/mailbox-test.c
View file

@ -46,7 +46,6 @@ static ssize_t mbox_test_signal_write(struct file *filp,
size_t count, loff_t *ppos)
{
struct mbox_test_device *tdev = filp->private_data;
int ret;
if (!tdev->tx_channel) {
dev_err(tdev->dev, "Channel cannot do Tx\n");
@ -60,17 +59,20 @@ static ssize_t mbox_test_signal_write(struct file *filp,
return -EINVAL;
}
tdev->signal = kzalloc(MBOX_MAX_SIG_LEN, GFP_KERNEL);
if (!tdev->signal)
return -ENOMEM;
/* Only allocate memory if we need to */
if (!tdev->signal) {
tdev->signal = kzalloc(MBOX_MAX_SIG_LEN, GFP_KERNEL);
if (!tdev->signal)
return -ENOMEM;
}
ret = copy_from_user(tdev->signal, userbuf, count);
if (ret) {
if (copy_from_user(tdev->signal, userbuf, count)) {
kfree(tdev->signal);
tdev->signal = NULL;
return -EFAULT;
}
return ret < 0 ? ret : count;
return count;
}
static const struct file_operations mbox_test_signal_ops = {

4
drivers/mailbox/mailbox-xgene-slimpro.c
View file

@ -189,8 +189,8 @@ static int slimpro_mbox_probe(struct platform_device *pdev)
int i;
ctx = devm_kzalloc(&pdev->dev, sizeof(struct slimpro_mbox), GFP_KERNEL);
if (IS_ERR(ctx))
return PTR_ERR(ctx);
if (!ctx)
return -ENOMEM;
platform_set_drvdata(pdev, ctx);

4
drivers/mailbox/mailbox.c
View file

@ -375,13 +375,13 @@ struct mbox_chan *mbox_request_channel_byname(struct mbox_client *cl,
if (!np) {
dev_err(cl->dev, "%s() currently only supports DT\n", __func__);
return ERR_PTR(-ENOSYS);
return ERR_PTR(-EINVAL);
}
if (!of_get_property(np, "mbox-names", NULL)) {
dev_err(cl->dev,
"%s() requires an \"mbox-names\" property\n", __func__);
return ERR_PTR(-ENOSYS);
return ERR_PTR(-EINVAL);
}
of_property_for_each_string(np, "mbox-names", prop, mbox_name) {

64
drivers/md/dm-cache-metadata.c
View file

@ -867,39 +867,55 @@ static int blocks_are_unmapped_or_clean(struct dm_cache_metadata *cmd,
return 0;
}
#define WRITE_LOCK(cmd) \
down_write(&cmd->root_lock); \
if (cmd->fail_io || dm_bm_is_read_only(cmd->bm)) { \
up_write(&cmd->root_lock); \
return -EINVAL; \
static bool cmd_write_lock(struct dm_cache_metadata *cmd)
{
down_write(&cmd->root_lock);
if (cmd->fail_io || dm_bm_is_read_only(cmd->bm)) {
up_write(&cmd->root_lock);
return false;
}
return true;
}
#define WRITE_LOCK_VOID(cmd) \
down_write(&cmd->root_lock); \
if (cmd->fail_io || dm_bm_is_read_only(cmd->bm)) { \
up_write(&cmd->root_lock); \
return; \
}
#define WRITE_LOCK(cmd) \
do { \
if (!cmd_write_lock((cmd))) \
return -EINVAL; \
} while(0)
#define WRITE_LOCK_VOID(cmd) \
do { \
if (!cmd_write_lock((cmd))) \
return; \
} while(0)
#define WRITE_UNLOCK(cmd) \
up_write(&cmd->root_lock)
up_write(&(cmd)->root_lock)
#define READ_LOCK(cmd) \
down_read(&cmd->root_lock); \
if (cmd->fail_io || dm_bm_is_read_only(cmd->bm)) { \
up_read(&cmd->root_lock); \
return -EINVAL; \
static bool cmd_read_lock(struct dm_cache_metadata *cmd)
{
down_read(&cmd->root_lock);
if (cmd->fail_io) {
up_read(&cmd->root_lock);
return false;
}
return true;
}
#define READ_LOCK_VOID(cmd) \
down_read(&cmd->root_lock); \
if (cmd->fail_io || dm_bm_is_read_only(cmd->bm)) { \
up_read(&cmd->root_lock); \
return; \
}
#define READ_LOCK(cmd) \
do { \
if (!cmd_read_lock((cmd))) \
return -EINVAL; \
} while(0)
#define READ_LOCK_VOID(cmd) \
do { \
if (!cmd_read_lock((cmd))) \
return; \
} while(0)
#define READ_UNLOCK(cmd) \
up_read(&cmd->root_lock)
up_read(&(cmd)->root_lock)
int dm_cache_resize(struct dm_cache_metadata *cmd, dm_cblock_t new_cache_size)
{

4
drivers/md/dm.c
View file

@ -1662,8 +1662,10 @@ static int __clone_and_map_data_bio(struct clone_info *ci, struct dm_target *ti,
tio = alloc_tio(ci, ti, target_bio_nr);
tio->len_ptr = len;
r = clone_bio(tio, bio, sector, *len);
if (r < 0)
if (r < 0) {
free_tio(ci->md, tio);
break;
}
__map_bio(tio);
}

11
drivers/misc/lkdtm.c
View file

@ -458,8 +458,10 @@ static void lkdtm_do_action(enum ctype which)
break;
val = kmalloc(len, GFP_KERNEL);
if (!val)
if (!val) {
kfree(base);
break;
}
*val = 0x12345678;
base[offset] = *val;
@ -498,14 +500,17 @@ static void lkdtm_do_action(enum ctype which)
}
case CT_READ_BUDDY_AFTER_FREE: {
unsigned long p = __get_free_page(GFP_KERNEL);
int saw, *val = kmalloc(1024, GFP_KERNEL);
int saw, *val;
int *base;
if (!p)
break;
if (!val)
val = kmalloc(1024, GFP_KERNEL);
if (!val) {
free_page(p);
break;
}
base = (int *)p;

18
drivers/mmc/card/block.c
View file

@ -86,7 +86,6 @@ static int max_devices;
/* TODO: Replace these with struct ida */
static DECLARE_BITMAP(dev_use, MAX_DEVICES);
static DECLARE_BITMAP(name_use, MAX_DEVICES);
/*
* There is one mmc_blk_data per slot.
@ -105,7 +104,6 @@ struct mmc_blk_data {
unsigned int usage;
unsigned int read_only;
unsigned int part_type;
unsigned int name_idx;
unsigned int reset_done;
#define MMC_BLK_READ BIT(0)
#define MMC_BLK_WRITE BIT(1)
@ -2202,19 +2200,6 @@ static struct mmc_blk_data *mmc_blk_alloc_req(struct mmc_card *card,
goto out;
}
/*
* !subname implies we are creating main mmc_blk_data that will be
* associated with mmc_card with dev_set_drvdata. Due to device
* partitions, devidx will not coincide with a per-physical card
* index anymore so we keep track of a name index.
*/
if (!subname) {
md->name_idx = find_first_zero_bit(name_use, max_devices);
__set_bit(md->name_idx, name_use);
} else
md->name_idx = ((struct mmc_blk_data *)
dev_to_disk(parent)->private_data)->name_idx;
md->area_type = area_type;
/*
@ -2264,7 +2249,7 @@ static struct mmc_blk_data *mmc_blk_alloc_req(struct mmc_card *card,
*/
snprintf(md->disk->disk_name, sizeof(md->disk->disk_name),
"mmcblk%u%s", md->name_idx, subname ? subname : "");
"mmcblk%u%s", card->host->index, subname ? subname : "");
if (mmc_card_mmc(card))
blk_queue_logical_block_size(md->queue.queue,
@ -2418,7 +2403,6 @@ static void mmc_blk_remove_parts(struct mmc_card *card,
struct list_head *pos, *q;
struct mmc_blk_data *part_md;
__clear_bit(md->name_idx, name_use);
list_for_each_safe(pos, q, &md->part) {
part_md = list_entry(pos, struct mmc_blk_data, part);
list_del(pos);

10
drivers/mmc/host/sdhci-tegra.c
View file

@ -382,14 +382,6 @@ static const struct sdhci_tegra_soc_data soc_data_tegra114 = {
.pdata = &sdhci_tegra114_pdata,
};
static const struct sdhci_tegra_soc_data soc_data_tegra124 = {
.pdata = &sdhci_tegra114_pdata,
.nvquirks = NVQUIRK_ENABLE_SDR50 |
NVQUIRK_ENABLE_DDR50 |
NVQUIRK_ENABLE_SDR104 |
NVQUIRK_HAS_PADCALIB,
};
static const struct sdhci_pltfm_data sdhci_tegra210_pdata = {
.quirks = SDHCI_QUIRK_BROKEN_TIMEOUT_VAL |
SDHCI_QUIRK_DATA_TIMEOUT_USES_SDCLK |
@ -407,7 +399,7 @@ static const struct sdhci_tegra_soc_data soc_data_tegra210 = {
static const struct of_device_id sdhci_tegra_dt_match[] = {
{ .compatible = "nvidia,tegra210-sdhci", .data = &soc_data_tegra210 },
{ .compatible = "nvidia,tegra124-sdhci", .data = &soc_data_tegra124 },
{ .compatible = "nvidia,tegra124-sdhci", .data = &soc_data_tegra114 },
{ .compatible = "nvidia,tegra114-sdhci", .data = &soc_data_tegra114 },
{ .compatible = "nvidia,tegra30-sdhci", .data = &soc_data_tegra30 },
{ .compatible = "nvidia,tegra20-sdhci", .data = &soc_data_tegra20 },

10
drivers/mtd/nand/nand_base.c
View file

@ -4009,7 +4009,6 @@ static int nand_dt_init(struct nand_chip *chip)
* This is the first phase of the normal nand_scan() function. It reads the
* flash ID and sets up MTD fields accordingly.
*
* The mtd->owner field must be set to the module of the caller.
*/
int nand_scan_ident(struct mtd_info *mtd, int maxchips,
struct nand_flash_dev *table)
@ -4429,19 +4428,12 @@ EXPORT_SYMBOL(nand_scan_tail);
*
* This fills out all the uninitialized function pointers with the defaults.
* The flash ID is read and the mtd/chip structures are filled with the
* appropriate values. The mtd->owner field must be set to the module of the
* caller.
* appropriate values.
*/
int nand_scan(struct mtd_info *mtd, int maxchips)
{
int ret;
/* Many callers got this wrong, so check for it for a while... */
if (!mtd->owner && caller_is_module()) {
pr_crit("%s called with NULL mtd->owner!\n", __func__);
BUG();
}
ret = nand_scan_ident(mtd, maxchips, NULL);
if (!ret)
ret = nand_scan_tail(mtd);

14
drivers/nvdimm/pmem.c
View file

@ -103,6 +103,20 @@ static int pmem_do_bvec(struct pmem_device *pmem, struct page *page,
flush_dcache_page(page);
}
} else {
/*
* Note that we write the data both before and after
* clearing poison. The write before clear poison
* handles situations where the latest written data is
* preserved and the clear poison operation simply marks
* the address range as valid without changing the data.
* In this case application software can assume that an
* interrupted write will either return the new good
* data or an error.
*
* However, if pmem_clear_poison() leaves the data in an
* indeterminate state we need to perform the write
* after clear poison.
*/
flush_dcache_page(page);
memcpy_to_pmem(pmem_addr, mem + off, len);
if (unlikely(bad_pmem)) {

31
drivers/nvme/host/pci.c
View file

@ -1478,8 +1478,7 @@ static int nvme_setup_io_queues(struct nvme_dev *dev)
if (result > 0) {
dev_err(dev->ctrl.device,
"Could not set queue count (%d)\n", result);
nr_io_queues = 0;
result = 0;
return 0;
}
if (dev->cmb && NVME_CMB_SQS(dev->cmbsz)) {
@ -1513,7 +1512,9 @@ static int nvme_setup_io_queues(struct nvme_dev *dev)
* If we enable msix early due to not intx, disable it again before
* setting up the full range we need.
*/
if (!pdev->irq)
if (pdev->msi_enabled)
pci_disable_msi(pdev);
else if (pdev->msix_enabled)
pci_disable_msix(pdev);
for (i = 0; i < nr_io_queues; i++)
@ -1696,7 +1697,6 @@ static int nvme_pci_enable(struct nvme_dev *dev)
if (pci_enable_device_mem(pdev))
return result;
dev->entry[0].vector = pdev->irq;
pci_set_master(pdev);
if (dma_set_mask_and_coherent(dev->dev, DMA_BIT_MASK(64)) &&
@ -1709,13 +1709,18 @@ static int nvme_pci_enable(struct nvme_dev *dev)
}
/*
* Some devices don't advertse INTx interrupts, pre-enable a single
* MSIX vec for setup. We'll adjust this later.
* Some devices and/or platforms don't advertise or work with INTx
* interrupts. Pre-enable a single MSIX or MSI vec for setup. We'll
* adjust this later.
*/
if (!pdev->irq) {
result = pci_enable_msix(pdev, dev->entry, 1);
if (result < 0)
goto disable;
if (pci_enable_msix(pdev, dev->entry, 1)) {
pci_enable_msi(pdev);
dev->entry[0].vector = pdev->irq;
}
if (!dev->entry[0].vector) {
result = -ENODEV;
goto disable;
}
cap = lo_hi_readq(dev->bar + NVME_REG_CAP);
@ -1859,6 +1864,9 @@ static void nvme_reset_work(struct work_struct *work)
if (dev->ctrl.ctrl_config & NVME_CC_ENABLE)
nvme_dev_disable(dev, false);
if (test_bit(NVME_CTRL_REMOVING, &dev->flags))
goto out;
set_bit(NVME_CTRL_RESETTING, &dev->flags);
result = nvme_pci_enable(dev);
@ -2078,11 +2086,10 @@ static void nvme_remove(struct pci_dev *pdev)
{
struct nvme_dev *dev = pci_get_drvdata(pdev);
del_timer_sync(&dev->watchdog_timer);
set_bit(NVME_CTRL_REMOVING, &dev->flags);
pci_set_drvdata(pdev, NULL);
flush_work(&dev->async_work);
flush_work(&dev->reset_work);
flush_work(&dev->scan_work);
nvme_remove_namespaces(&dev->ctrl);
nvme_uninit_ctrl(&dev->ctrl);

2
drivers/pci/pci-sysfs.c
View file

@ -636,7 +636,7 @@ static ssize_t pci_read_config(struct file *filp, struct kobject *kobj,
u8 *data = (u8 *) buf;
/* Several chips lock up trying to read undefined config space */
if (security_capable(filp->f_cred, &init_user_ns, CAP_SYS_ADMIN) == 0)
if (file_ns_capable(filp, &init_user_ns, CAP_SYS_ADMIN))
size = dev->cfg_size;
else if (dev->hdr_type == PCI_HEADER_TYPE_CARDBUS)
size = 128;

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