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-rw-r--r--arch/arc/include/asm/syscall.h7
-rw-r--r--arch/arm/boot/dts/am335x-evm.dts26
-rw-r--r--arch/arm/boot/dts/am335x-evmsk.dts26
-rw-r--r--arch/arm/boot/dts/am33xx-l4.dtsi4
-rw-r--r--arch/arm/boot/dts/rk3288-tinker.dtsi3
-rw-r--r--arch/arm/boot/dts/rk3288-veyron.dtsi2
-rw-r--r--arch/arm/boot/dts/rk3288.dtsi20
-rw-r--r--arch/arm/boot/dts/sama5d2-pinfunc.h2
-rw-r--r--arch/arm/boot/dts/ste-nomadik-nhk15.dts9
-rw-r--r--arch/arm/include/asm/syscall.h47
-rw-r--r--arch/arm/mach-at91/pm.c6
-rw-r--r--arch/arm/mach-iop13xx/setup.c8
-rw-r--r--arch/arm/mach-iop13xx/tpmi.c10
-rw-r--r--arch/arm/mach-milbeaut/platsmp.c4
-rw-r--r--arch/arm/mach-omap1/board-ams-delta.c2
-rw-r--r--arch/arm/mach-omap2/display.c4
-rw-r--r--arch/arm/plat-iop/adma.c6
-rw-r--r--arch/arm/plat-orion/common.c4
-rw-r--r--arch/arm64/boot/dts/altera/socfpga_stratix10.dtsi3
-rw-r--r--arch/arm64/boot/dts/rockchip/rk3328-roc-cc.dts4
-rw-r--r--arch/arm64/boot/dts/rockchip/rk3328-rock64.dts3
-rw-r--r--arch/arm64/boot/dts/rockchip/rk3328.dtsi58
-rw-r--r--arch/arm64/boot/dts/rockchip/rk3399-rock-pi-4.dts1
-rw-r--r--arch/arm64/include/asm/syscall.h46
-rw-r--r--arch/arm64/kernel/sdei.c6
-rw-r--r--arch/c6x/include/asm/syscall.h79
-rw-r--r--arch/csky/include/asm/syscall.h26
-rw-r--r--arch/h8300/include/asm/syscall.h34
-rw-r--r--arch/hexagon/include/asm/syscall.h4
-rw-r--r--arch/ia64/include/asm/syscall.h13
-rw-r--r--arch/ia64/kernel/ptrace.c7
-rw-r--r--arch/microblaze/include/asm/syscall.h8
-rw-r--r--arch/mips/configs/generic/board-ocelot.config8
-rw-r--r--arch/mips/include/asm/syscall.h3
-rw-r--r--arch/mips/kernel/kgdb.c3
-rw-r--r--arch/mips/kernel/ptrace.c2
-rw-r--r--arch/mips/sgi-ip27/ip27-irq.c3
-rw-r--r--arch/nds32/include/asm/syscall.h62
-rw-r--r--arch/nios2/include/asm/syscall.h84
-rw-r--r--arch/openrisc/include/asm/syscall.h12
-rw-r--r--arch/parisc/include/asm/ptrace.h5
-rw-r--r--arch/parisc/include/asm/syscall.h30
-rw-r--r--arch/parisc/kernel/process.c6
-rw-r--r--arch/parisc/kernel/setup.c3
-rw-r--r--arch/powerpc/include/asm/syscall.h15
-rw-r--r--arch/powerpc/kernel/kvm.c7
-rw-r--r--arch/riscv/include/asm/fixmap.h2
-rw-r--r--arch/riscv/include/asm/syscall.h24
-rw-r--r--arch/riscv/include/asm/uaccess.h2
-rw-r--r--arch/riscv/kernel/Makefile3
-rw-r--r--arch/riscv/kernel/module.c2
-rw-r--r--arch/riscv/kernel/setup.c8
-rw-r--r--arch/riscv/mm/Makefile6
-rw-r--r--arch/riscv/mm/init.c28
-rw-r--r--arch/s390/include/asm/syscall.h28
-rw-r--r--arch/sh/boards/of-generic.c4
-rw-r--r--arch/sh/include/asm/syscall_32.h47
-rw-r--r--arch/sh/include/asm/syscall_64.h8
-rw-r--r--arch/sparc/include/asm/syscall.h11
-rw-r--r--arch/um/include/asm/syscall-generic.h78
-rw-r--r--arch/x86/include/asm/syscall.h142
-rw-r--r--arch/x86/include/asm/xen/hypercall.h3
-rw-r--r--arch/x86/kvm/svm.c22
-rw-r--r--arch/x86/kvm/vmx/nested.c74
-rw-r--r--arch/xtensa/include/asm/processor.h21
-rw-r--r--arch/xtensa/include/asm/syscall.h33
-rw-r--r--arch/xtensa/kernel/entry.S6
-rw-r--r--arch/xtensa/kernel/stacktrace.c6
-rw-r--r--arch/xtensa/mm/mmu.c2
69 files changed, 472 insertions, 813 deletions
diff --git a/arch/arc/include/asm/syscall.h b/arch/arc/include/asm/syscall.h
index 29de09804306..c7a4201ed62b 100644
--- a/arch/arc/include/asm/syscall.h
+++ b/arch/arc/include/asm/syscall.h
@@ -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);
diff --git a/arch/arm/boot/dts/am335x-evm.dts b/arch/arm/boot/dts/am335x-evm.dts
index dce5be5df97b..edcff79879e7 100644
--- a/arch/arm/boot/dts/am335x-evm.dts
+++ b/arch/arm/boot/dts/am335x-evm.dts
@@ -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>;
};
};
diff --git a/arch/arm/boot/dts/am335x-evmsk.dts b/arch/arm/boot/dts/am335x-evmsk.dts
index b128998097ce..2c2d8b5b8cf5 100644
--- a/arch/arm/boot/dts/am335x-evmsk.dts
+++ b/arch/arm/boot/dts/am335x-evmsk.dts
@@ -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>;
};
};
diff --git a/arch/arm/boot/dts/am33xx-l4.dtsi b/arch/arm/boot/dts/am33xx-l4.dtsi
index f459ec316a22..ca6d9f02a800 100644
--- a/arch/arm/boot/dts/am33xx-l4.dtsi
+++ b/arch/arm/boot/dts/am33xx-l4.dtsi
@@ -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>;
diff --git a/arch/arm/boot/dts/rk3288-tinker.dtsi b/arch/arm/boot/dts/rk3288-tinker.dtsi
index aa107ee41b8b..ef653c3209bc 100644
--- a/arch/arm/boot/dts/rk3288-tinker.dtsi
+++ b/arch/arm/boot/dts/rk3288-tinker.dtsi
@@ -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>;
diff --git a/arch/arm/boot/dts/rk3288-veyron.dtsi b/arch/arm/boot/dts/rk3288-veyron.dtsi
index 0bc2409f6903..192dbc089ade 100644
--- a/arch/arm/boot/dts/rk3288-veyron.dtsi
+++ b/arch/arm/boot/dts/rk3288-veyron.dtsi
@@ -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>;
diff --git a/arch/arm/boot/dts/rk3288.dtsi b/arch/arm/boot/dts/rk3288.dtsi
index ca7d52daa8fb..a024d1e7e74c 100644
--- a/arch/arm/boot/dts/rk3288.dtsi
+++ b/arch/arm/boot/dts/rk3288.dtsi
@@ -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>;
};
diff --git a/arch/arm/boot/dts/sama5d2-pinfunc.h b/arch/arm/boot/dts/sama5d2-pinfunc.h
index 1c01a6f843d8..28a2e45752fe 100644
--- a/arch/arm/boot/dts/sama5d2-pinfunc.h
+++ b/arch/arm/boot/dts/sama5d2-pinfunc.h
@@ -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)
diff --git a/arch/arm/boot/dts/ste-nomadik-nhk15.dts b/arch/arm/boot/dts/ste-nomadik-nhk15.dts
index f2f6558a00f1..04066f9cb8a3 100644
--- a/arch/arm/boot/dts/ste-nomadik-nhk15.dts
+++ b/arch/arm/boot/dts/ste-nomadik-nhk15.dts
@@ -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>;
/*
diff --git a/arch/arm/include/asm/syscall.h b/arch/arm/include/asm/syscall.h
index 06dea6bce293..080ce70cab12 100644
--- a/arch/arm/include/asm/syscall.h
+++ b/arch/arm/include/asm/syscall.h
@@ -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;
-
- 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]));
+ args[0] = regs->ARM_ORIG_r0;
+ args++;
+
+ 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;
-
- 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]));
+ regs->ARM_ORIG_r0 = args[0];
+ args++;
+
+ memcpy(&regs->ARM_r0 + 1, args, 5 * sizeof(args[0]));
}
static inline int syscall_get_arch(void)
diff --git a/arch/arm/mach-at91/pm.c b/arch/arm/mach-at91/pm.c
index 51e808adb00c..2a757dcaa1a5 100644
--- a/arch/arm/mach-at91/pm.c
+++ b/arch/arm/mach-at91/pm.c
@@ -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;
diff --git a/arch/arm/mach-iop13xx/setup.c b/arch/arm/mach-iop13xx/setup.c
index 53c316f7301e..fe4932fda01d 100644
--- a/arch/arm/mach-iop13xx/setup.c
+++ b/arch/arm/mach-iop13xx/setup.c
@@ -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,
},
};
diff --git a/arch/arm/mach-iop13xx/tpmi.c b/arch/arm/mach-iop13xx/tpmi.c
index db511ec2b1df..116feb6b261e 100644
--- a/arch/arm/mach-iop13xx/tpmi.c
+++ b/arch/arm/mach-iop13xx/tpmi.c
@@ -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),
},
};
diff --git a/arch/arm/mach-milbeaut/platsmp.c b/arch/arm/mach-milbeaut/platsmp.c
index 591543c81399..3ea880f5fcb7 100644
--- a/arch/arm/mach-milbeaut/platsmp.c
+++ b/arch/arm/mach-milbeaut/platsmp.c
@@ -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);
diff --git a/arch/arm/mach-omap1/board-ams-delta.c b/arch/arm/mach-omap1/board-ams-delta.c
index be30c3c061b4..1b15d593837e 100644
--- a/arch/arm/mach-omap1/board-ams-delta.c
+++ b/arch/arm/mach-omap1/board-ams-delta.c
@@ -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,
};
diff --git a/arch/arm/mach-omap2/display.c b/arch/arm/mach-omap2/display.c
index 1444b4b4bd9f..439e143cad7b 100644
--- a/arch/arm/mach-omap2/display.c
+++ b/arch/arm/mach-omap2/display.c
@@ -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);
diff --git a/arch/arm/plat-iop/adma.c b/arch/arm/plat-iop/adma.c
index a4d1f8de3b5b..d9612221e484 100644
--- a/arch/arm/plat-iop/adma.c
+++ b/arch/arm/plat-iop/adma.c
@@ -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,
},
};
diff --git a/arch/arm/plat-orion/common.c b/arch/arm/plat-orion/common.c
index a6c81ce00f52..8647cb80a93b 100644
--- a/arch/arm/plat-orion/common.c
+++ b/arch/arm/plat-orion/common.c
@@ -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,
},
};
diff --git a/arch/arm64/boot/dts/altera/socfpga_stratix10.dtsi b/arch/arm64/boot/dts/altera/socfpga_stratix10.dtsi
index 7c649f6b14cb..cd7c76e58b09 100644
--- a/arch/arm64/boot/dts/altera/socfpga_stratix10.dtsi
+++ b/arch/arm64/boot/dts/altera/socfpga_stratix10.dtsi
@@ -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";
};
diff --git a/arch/arm64/boot/dts/rockchip/rk3328-roc-cc.dts b/arch/arm64/boot/dts/rockchip/rk3328-roc-cc.dts
index 33c44e857247..0e34354b2092 100644
--- a/arch/arm64/boot/dts/rockchip/rk3328-roc-cc.dts
+++ b/arch/arm64/boot/dts/rockchip/rk3328-roc-cc.dts
@@ -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";
};
diff --git a/arch/arm64/boot/dts/rockchip/rk3328-rock64.dts b/arch/arm64/boot/dts/rockchip/rk3328-rock64.dts
index 2157a528276b..79b4d1d4b5d6 100644
--- a/arch/arm64/boot/dts/rockchip/rk3328-rock64.dts
+++ b/arch/arm64/boot/dts/rockchip/rk3328-rock64.dts
@@ -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";
diff --git a/arch/arm64/boot/dts/rockchip/rk3328.dtsi b/arch/arm64/boot/dts/rockchip/rk3328.dtsi
index 84f14b132e8f..dabef1a21649 100644
--- a/arch/arm64/boot/dts/rockchip/rk3328.dtsi
+++ b/arch/arm64/boot/dts/rockchip/rk3328.dtsi
@@ -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 {
diff --git a/arch/arm64/boot/dts/rockchip/rk3399-rock-pi-4.dts b/arch/arm64/boot/dts/rockchip/rk3399-rock-pi-4.dts
index 4a543f2117d4..844eac939a97 100644
--- a/arch/arm64/boot/dts/rockchip/rk3399-rock-pi-4.dts
+++ b/arch/arm64/boot/dts/rockchip/rk3399-rock-pi-4.dts
@@ -158,6 +158,7 @@
};
&hdmi {
+ ddc-i2c-bus = <&i2c3>;
pinctrl-names = "default";
pinctrl-0 = <&hdmi_cec>;
status = "okay";
diff --git a/arch/arm64/include/asm/syscall.h b/arch/arm64/include/asm/syscall.h
index ad8be16a39c9..a179df3674a1 100644
--- a/arch/arm64/include/asm/syscall.h
+++ b/arch/arm64/include/asm/syscall.h
@@ -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;
-
- 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]));
+ args[0] = regs->orig_x0;
+ args++;
+
+ 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;
-
- 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]));
+ regs->orig_x0 = args[0];
+ args++;
+
+ memcpy(&regs->regs[1], args, 5 * sizeof(args[0]));
}
/*
diff --git a/arch/arm64/kernel/sdei.c b/arch/arm64/kernel/sdei.c
index 5ba4465e44f0..ea94cf8f9dc6 100644
--- a/arch/arm64/kernel/sdei.c
+++ b/arch/arm64/kernel/sdei.c
@@ -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;
diff --git a/arch/c6x/include/asm/syscall.h b/arch/c6x/include/asm/syscall.h
index ae2be315ee9c..15ba8599858e 100644
--- a/arch/c6x/include/asm/syscall.h
+++ b/arch/c6x/include/asm/syscall.h
@@ -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 */
diff --git a/arch/csky/include/asm/syscall.h b/arch/csky/include/asm/syscall.h
index d637445737b7..bda0a446c63e 100644
--- a/arch/csky/include/asm/syscall.h
+++ b/arch/csky/include/asm/syscall.h
@@ -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
diff --git a/arch/h8300/include/asm/syscall.h b/arch/h8300/include/asm/syscall.h
index 924990401237..ddd483c6ca95 100644
--- a/arch/h8300/include/asm/syscall.h
+++ b/arch/h8300/include/asm/syscall.h
@@ -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;
}
diff --git a/arch/hexagon/include/asm/syscall.h b/arch/hexagon/include/asm/syscall.h
index 4af9c7b6f13a..ae3a1e24fabd 100644
--- a/arch/hexagon/include/asm/syscall.h
+++ b/arch/hexagon/include/asm/syscall.h
@@ -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
diff --git a/arch/ia64/include/asm/syscall.h b/arch/ia64/include/asm/syscall.h
index 1d0b875fec44..0d9e7fab4a79 100644
--- a/arch/ia64/include/asm/syscall.h
+++ b/arch/ia64/include/asm/syscall.h
@@ -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)
diff --git a/arch/ia64/kernel/ptrace.c b/arch/ia64/kernel/ptrace.c
index 6d50ede0ed69..bf9c24d9ce84 100644
--- a/arch/ia64/kernel/ptrace.c
+++ b/arch/ia64/kernel/ptrace.c
@@ -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,
diff --git a/arch/microblaze/include/asm/syscall.h b/arch/microblaze/include/asm/syscall.h
index 220decd605a4..833d3a53dab3 100644
--- a/arch/microblaze/include/asm/syscall.h
+++ b/arch/microblaze/include/asm/syscall.h
@@ -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++);
}
diff --git a/arch/mips/configs/generic/board-ocelot.config b/arch/mips/configs/generic/board-ocelot.config
index f607888d2483..184eb65a6ba7 100644
--- a/arch/mips/configs/generic/board-ocelot.config
+++ b/arch/mips/configs/generic/board-ocelot.config
@@ -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
diff --git a/arch/mips/include/asm/syscall.h b/arch/mips/include/asm/syscall.h
index 6cf8ffb5367e..a2b4748655df 100644
--- a/arch/mips/include/asm/syscall.h
+++ b/arch/mips/include/asm/syscall.h
@@ -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() */
diff --git a/arch/mips/kernel/kgdb.c b/arch/mips/kernel/kgdb.c
index 6e574c02e4c3..ea781b29f7f1 100644
--- a/arch/mips/kernel/kgdb.c
+++ b/arch/mips/kernel/kgdb.c
@@ -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);
}
diff --git a/arch/mips/kernel/ptrace.c b/arch/mips/kernel/ptrace.c
index 0057c910bc2f..3a62f80958e1 100644
--- a/arch/mips/kernel/ptrace.c
+++ b/arch/mips/kernel/ptrace.c
@@ -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);
diff --git a/arch/mips/sgi-ip27/ip27-irq.c b/arch/mips/sgi-ip27/ip27-irq.c
index 710a59764b01..a32f843cdbe0 100644
--- a/arch/mips/sgi-ip27/ip27-irq.c
+++ b/arch/mips/sgi-ip27/ip27-irq.c
@@ -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);
}
diff --git a/arch/nds32/include/asm/syscall.h b/arch/nds32/include/asm/syscall.h
index f7e5e86765fe..671ebd357496 100644
--- a/arch/nds32/include/asm/syscall.h
+++ b/arch/nds32/include/asm/syscall.h
@@ -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;
-
- 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--;
- }
+ regs->orig_r0 = args[0];
+ args++;
- 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 */
diff --git a/arch/nios2/include/asm/syscall.h b/arch/nios2/include/asm/syscall.h
index 9de220854c4a..d7624ed06efb 100644
--- a/arch/nios2/include/asm/syscall.h
+++ b/arch/nios2/include/asm/syscall.h
@@ -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
diff --git a/arch/openrisc/include/asm/syscall.h b/arch/openrisc/include/asm/syscall.h
index 2db9f1cf0694..b4ff07c1baed 100644
--- a/arch/openrisc/include/asm/syscall.h
+++ b/arch/openrisc/include/asm/syscall.h
@@ -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)
diff --git a/arch/parisc/include/asm/ptrace.h b/arch/parisc/include/asm/ptrace.h
index 2a27b275ab09..9ff033d261ab 100644
--- a/arch/parisc/include/asm/ptrace.h
+++ b/arch/parisc/include/asm/ptrace.h
@@ -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 */
diff --git a/arch/parisc/include/asm/syscall.h b/arch/parisc/include/asm/syscall.h
index 8bff1a58c97f..62a6d477fae0 100644
--- a/arch/parisc/include/asm/syscall.h
+++ b/arch/parisc/include/asm/syscall.h
@@ -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,
diff --git a/arch/parisc/kernel/process.c b/arch/parisc/kernel/process.c
index eb39e7e380d7..841db71958cd 100644
--- a/arch/parisc/kernel/process.c
+++ b/arch/parisc/kernel/process.c
@@ -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);
diff --git a/arch/parisc/kernel/setup.c b/arch/parisc/kernel/setup.c
index 15dd9e21be7e..d908058d05c1 100644
--- a/arch/parisc/kernel/setup.c
+++ b/arch/parisc/kernel/setup.c
@@ -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();
diff --git a/arch/powerpc/include/asm/syscall.h b/arch/powerpc/include/asm/syscall.h
index 1a0e7a8b1c81..1243045bad2d 100644
--- a/arch/powerpc/include/asm/syscall.h
+++ b/arch/powerpc/include/asm/syscall.h
@@ -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)
diff --git a/arch/powerpc/kernel/kvm.c b/arch/powerpc/kernel/kvm.c
index 683b5b3805bd..cd381e2291df 100644
--- a/arch/powerpc/kernel/kvm.c
+++ b/arch/powerpc/kernel/kvm.c
@@ -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);
}
diff --git a/arch/riscv/include/asm/fixmap.h b/arch/riscv/include/asm/fixmap.h
index 57afe604b495..c207f6634b91 100644
--- a/arch/riscv/include/asm/fixmap.h
+++ b/arch/riscv/include/asm/fixmap.h
@@ -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
diff --git a/arch/riscv/include/asm/syscall.h b/arch/riscv/include/asm/syscall.h
index bba3da6ef157..a3d5273ded7c 100644
--- a/arch/riscv/include/asm/syscall.h
+++ b/arch/riscv/include/asm/syscall.h
@@ -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)
diff --git a/arch/riscv/include/asm/uaccess.h b/arch/riscv/include/asm/uaccess.h
index a00168b980d2..fb53a8089e76 100644
--- a/arch/riscv/include/asm/uaccess.h
+++ b/arch/riscv/include/asm/uaccess.h
@@ -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" \
diff --git a/arch/riscv/kernel/Makefile b/arch/riscv/kernel/Makefile
index f13f7f276639..598568168d35 100644
--- a/arch/riscv/kernel/Makefile
+++ b/arch/riscv/kernel/Makefile
@@ -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
diff --git a/arch/riscv/kernel/module.c b/arch/riscv/kernel/module.c
index 7dd308129b40..2872edce894d 100644
--- a/arch/riscv/kernel/module.c
+++ b/arch/riscv/kernel/module.c
@@ -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);
diff --git a/arch/riscv/kernel/setup.c b/arch/riscv/kernel/setup.c
index ecb654f6a79e..540a331d1376 100644
--- a/arch/riscv/kernel/setup.c
+++ b/arch/riscv/kernel/setup.c
@@ -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;
diff --git a/arch/riscv/mm/Makefile b/arch/riscv/mm/Makefile
index eb22ab49b3e0..b68aac701803 100644
--- a/arch/riscv/mm/Makefile
+++ b/arch/riscv/mm/Makefile
@@ -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
diff --git a/arch/riscv/mm/init.c b/arch/riscv/mm/init.c
index b379a75ac6a6..5fd8c922e1c2 100644
--- a/arch/riscv/mm/init.c
+++ b/arch/riscv/mm/init.c
@@ -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;
diff --git a/arch/s390/include/asm/syscall.h b/arch/s390/include/asm/syscall.h
index 96f9a9151fde..59c3e91f2cdb 100644
--- a/arch/s390/include/asm/syscall.h
+++ b/arch/s390/include/asm/syscall.h
@@ -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)
diff --git a/arch/sh/boards/of-generic.c b/arch/sh/boards/of-generic.c
index 958f46da3a79..d91065e81a4e 100644
--- a/arch/sh/boards/of-generic.c
+++ b/arch/sh/boards/of-generic.c
@@ -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)
{
}
diff --git a/arch/sh/include/asm/syscall_32.h b/arch/sh/include/asm/syscall_32.h
index 6e118799831c..8c9d7e5e5dcc 100644
--- a/arch/sh/include/asm/syscall_32.h
+++ b/arch/sh/include/asm/syscall_32.h
@@ -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)
diff --git a/arch/sh/include/asm/syscall_64.h b/arch/sh/include/asm/syscall_64.h
index 43882580c7f9..22fad97da066 100644
--- a/arch/sh/include/asm/syscall_64.h
+++ b/arch/sh/include/asm/syscall_64.h
@@ -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)
diff --git a/arch/sparc/include/asm/syscall.h b/arch/sparc/include/asm/syscall.h
index 053989e3f6a6..4d075434e816 100644
--- a/arch/sparc/include/asm/syscall.h
+++ b/arch/sparc/include/asm/syscall.h
@@ -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)
diff --git a/arch/um/include/asm/syscall-generic.h b/arch/um/include/asm/syscall-generic.h
index 9fb9cf8cd39a..98e50c50c12e 100644
--- a/arch/um/include/asm/syscall-generic.h
+++ b/arch/um/include/asm/syscall-generic.h
@@ -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. */
diff --git a/arch/x86/include/asm/syscall.h b/arch/x86/include/asm/syscall.h
index d653139857af..4c305471ec33 100644
--- a/arch/x86/include/asm/syscall.h
+++ b/arch/x86/include/asm/syscall.h
@@ -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)
diff --git a/arch/x86/include/asm/xen/hypercall.h b/arch/x86/include/asm/xen/hypercall.h
index de6f0d59a24f..2863c2026655 100644
--- a/arch/x86/include/asm/xen/hypercall.h
+++ b/arch/x86/include/asm/xen/hypercall.h
@@ -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])
diff --git a/arch/x86/kvm/svm.c b/arch/x86/kvm/svm.c
index 426039285fd1..e0a791c3d4fc 100644
--- a/arch/x86/kvm/svm.c
+++ b/arch/x86/kvm/svm.c
@@ -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;
diff --git a/arch/x86/kvm/vmx/nested.c b/arch/x86/kvm/vmx/nested.c
index 153e539c29c9..7ec9bb1dd723 100644
--- a/arch/x86/kvm/vmx/nested.c
+++ b/arch/x86/kvm/vmx/nested.c
@@ -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)
diff --git a/arch/xtensa/include/asm/processor.h b/arch/xtensa/include/asm/processor.h
index f7dd895b2353..0c14018d1c26 100644
--- a/arch/xtensa/include/asm/processor.h
+++ b/arch/xtensa/include/asm/processor.h
@@ -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;
diff --git a/arch/xtensa/include/asm/syscall.h b/arch/xtensa/include/asm/syscall.h
index a168bf81c7f4..91dc06d58060 100644
--- a/arch/xtensa/include/asm/syscall.h
+++ b/arch/xtensa/include/asm/syscall.h
@@ -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;
-
- 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;
- }
+ unsigned int i;
- 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*);
diff --git a/arch/xtensa/kernel/entry.S b/arch/xtensa/kernel/entry.S
index e50f5124dc6f..e54af8b7e0f8 100644
--- a/arch/xtensa/kernel/entry.S
+++ b/arch/xtensa/kernel/entry.S
@@ -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)
diff --git a/arch/xtensa/kernel/stacktrace.c b/arch/xtensa/kernel/stacktrace.c
index 174c11f13bba..b9f82510c650 100644
--- a/arch/xtensa/kernel/stacktrace.c
+++ b/arch/xtensa/kernel/stacktrace.c
@@ -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;
diff --git a/arch/xtensa/mm/mmu.c b/arch/xtensa/mm/mmu.c
index 2fb7d1172228..03678c4afc39 100644
--- a/arch/xtensa/mm/mmu.c
+++ b/arch/xtensa/mm/mmu.c
@@ -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)