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Merge branch 'irq/urgent' into irq/core 

Merge urgent fixes so pending patches for 4.9 can be applied.
hifive-unleashed-5.1
Thomas Gleixner 2016-09-20 23:20:32 +02:00
parent 0a30d69195 e875bd66df
commit 464b5847e6
262 changed files with 2549 additions and 1644 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
Documentation/devicetree/bindings/mmc/sdhci-st.txt
View File

@ -10,7 +10,7 @@ Required properties:
subsystem (mmcss) inside the FlashSS (available in STiH407 SoC
family).
- clock-names: Should be "mmc".
- clock-names: Should be "mmc" and "icn". (NB: The latter is not compulsory)
See: Documentation/devicetree/bindings/resource-names.txt
- clocks: Phandle to the clock.
See: Documentation/devicetree/bindings/clock/clock-bindings.txt

5
MAINTAINERS
View File

@ -1625,6 +1625,7 @@ N: rockchip
ARM/SAMSUNG EXYNOS ARM ARCHITECTURES
M: Kukjin Kim <kgene@kernel.org>
M: Krzysztof Kozlowski <krzk@kernel.org>
R: Javier Martinez Canillas <javier@osg.samsung.com>
L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
L: linux-samsung-soc@vger.kernel.org (moderated for non-subscribers)
S: Maintained
@ -2485,7 +2486,7 @@ F: include/net/bluetooth/
BONDING DRIVER
M: Jay Vosburgh <j.vosburgh@gmail.com>
M: Veaceslav Falico <vfalico@gmail.com>
M: Andy Gospodarek <gospo@cumulusnetworks.com>
M: Andy Gospodarek <andy@greyhouse.net>
L: netdev@vger.kernel.org
W: http://sourceforge.net/projects/bonding/
S: Supported
@ -3269,7 +3270,7 @@ S: Maintained
F: drivers/net/wan/cosa*
CPMAC ETHERNET DRIVER
M: Florian Fainelli <florian@openwrt.org>
M: Florian Fainelli <f.fainelli@gmail.com>
L: netdev@vger.kernel.org
S: Maintained
F: drivers/net/ethernet/ti/cpmac.c

2
Makefile
View File

@ -1,7 +1,7 @@
VERSION = 4
PATCHLEVEL = 8
SUBLEVEL = 0
EXTRAVERSION = -rc6
EXTRAVERSION = -rc7
NAME = Psychotic Stoned Sheep
# *DOCUMENTATION*

19
arch/alpha/include/asm/uaccess.h
View File

@ -371,14 +371,6 @@ __copy_tofrom_user_nocheck(void *to, const void *from, long len)
return __cu_len;
}
extern inline long
__copy_tofrom_user(void *to, const void *from, long len, const void __user *validate)
{
if (__access_ok((unsigned long)validate, len, get_fs()))
len = __copy_tofrom_user_nocheck(to, from, len);
return len;
}
#define __copy_to_user(to, from, n) \
({ \
__chk_user_ptr(to); \
@ -393,17 +385,22 @@ __copy_tofrom_user(void *to, const void *from, long len, const void __user *vali
#define __copy_to_user_inatomic __copy_to_user
#define __copy_from_user_inatomic __copy_from_user
extern inline long
copy_to_user(void __user *to, const void *from, long n)
{
return __copy_tofrom_user((__force void *)to, from, n, to);
if (likely(__access_ok((unsigned long)to, n, get_fs())))
n = __copy_tofrom_user_nocheck((__force void *)to, from, n);
return n;
}
extern inline long
copy_from_user(void *to, const void __user *from, long n)
{
return __copy_tofrom_user(to, (__force void *)from, n, from);
if (likely(__access_ok((unsigned long)from, n, get_fs())))
n = __copy_tofrom_user_nocheck(to, (__force void *)from, n);
else
memset(to, 0, n);
return n;
}
extern void __do_clear_user(void);

11
arch/arc/include/asm/uaccess.h
View File

@ -83,7 +83,10 @@
"2: ;nop\n" \
" .section .fixup, \"ax\"\n" \
" .align 4\n" \
"3: mov %0, %3\n" \
"3: # return -EFAULT\n" \
" mov %0, %3\n" \
" # zero out dst ptr\n" \
" mov %1, 0\n" \
" j 2b\n" \
" .previous\n" \
" .section __ex_table, \"a\"\n" \
@ -101,7 +104,11 @@
"2: ;nop\n" \
" .section .fixup, \"ax\"\n" \
" .align 4\n" \
"3: mov %0, %3\n" \
"3: # return -EFAULT\n" \
" mov %0, %3\n" \
" # zero out dst ptr\n" \
" mov %1, 0\n" \
" mov %R1, 0\n" \
" j 2b\n" \
" .previous\n" \
" .section __ex_table, \"a\"\n" \

1
arch/arm/boot/dts/bcm2835-rpi.dtsi
View File

@ -2,6 +2,7 @@
/ {
memory {
device_type = "memory";
reg = <0 0x10000000>;
};

3
arch/arm/boot/dts/bcm283x.dtsi
View File

@ -2,7 +2,6 @@
#include <dt-bindings/clock/bcm2835.h>
#include <dt-bindings/clock/bcm2835-aux.h>
#include <dt-bindings/gpio/gpio.h>
#include "skeleton.dtsi"
/* This include file covers the common peripherals and configuration between
* bcm2835 and bcm2836 implementations, leaving the CPU configuration to
@ -13,6 +12,8 @@
compatible = "brcm,bcm2835";
model = "BCM2835";
interrupt-parent = <&intc>;
#address-cells = <1>;
#size-cells = <1>;
chosen {
bootargs = "earlyprintk console=ttyAMA0";

10
arch/arm/boot/dts/stih407-family.dtsi
View File

@ -550,8 +550,9 @@
interrupt-names = "mmcirq";
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_mmc0>;
clock-names = "mmc";
clocks = <&clk_s_c0_flexgen CLK_MMC_0>;
clock-names = "mmc", "icn";
clocks = <&clk_s_c0_flexgen CLK_MMC_0>,
<&clk_s_c0_flexgen CLK_RX_ICN_HVA>;
bus-width = <8>;
non-removable;
};
@ -565,8 +566,9 @@
interrupt-names = "mmcirq";
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_sd1>;
clock-names = "mmc";
clocks = <&clk_s_c0_flexgen CLK_MMC_1>;
clock-names = "mmc", "icn";
clocks = <&clk_s_c0_flexgen CLK_MMC_1>,
<&clk_s_c0_flexgen CLK_RX_ICN_HVA>;
resets = <&softreset STIH407_MMC1_SOFTRESET>;
bus-width = <4>;
};

12
arch/arm/boot/dts/stih410.dtsi
View File

@ -41,7 +41,8 @@
compatible = "st,st-ohci-300x";
reg = <0x9a03c00 0x100>;
interrupts = <GIC_SPI 180 IRQ_TYPE_NONE>;
clocks = <&clk_s_c0_flexgen CLK_TX_ICN_DISP_0>;
clocks = <&clk_s_c0_flexgen CLK_TX_ICN_DISP_0>,
<&clk_s_c0_flexgen CLK_RX_ICN_DISP_0>;
resets = <&powerdown STIH407_USB2_PORT0_POWERDOWN>,
<&softreset STIH407_USB2_PORT0_SOFTRESET>;
reset-names = "power", "softreset";
@ -57,7 +58,8 @@
interrupts = <GIC_SPI 151 IRQ_TYPE_NONE>;
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_usb0>;
clocks = <&clk_s_c0_flexgen CLK_TX_ICN_DISP_0>;
clocks = <&clk_s_c0_flexgen CLK_TX_ICN_DISP_0>,
<&clk_s_c0_flexgen CLK_RX_ICN_DISP_0>;
resets = <&powerdown STIH407_USB2_PORT0_POWERDOWN>,
<&softreset STIH407_USB2_PORT0_SOFTRESET>;
reset-names = "power", "softreset";
@ -71,7 +73,8 @@
compatible = "st,st-ohci-300x";
reg = <0x9a83c00 0x100>;
interrupts = <GIC_SPI 181 IRQ_TYPE_NONE>;
clocks = <&clk_s_c0_flexgen CLK_TX_ICN_DISP_0>;
clocks = <&clk_s_c0_flexgen CLK_TX_ICN_DISP_0>,
<&clk_s_c0_flexgen CLK_RX_ICN_DISP_0>;
resets = <&powerdown STIH407_USB2_PORT1_POWERDOWN>,
<&softreset STIH407_USB2_PORT1_SOFTRESET>;
reset-names = "power", "softreset";
@ -87,7 +90,8 @@
interrupts = <GIC_SPI 153 IRQ_TYPE_NONE>;
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_usb1>;
clocks = <&clk_s_c0_flexgen CLK_TX_ICN_DISP_0>;
clocks = <&clk_s_c0_flexgen CLK_TX_ICN_DISP_0>,
<&clk_s_c0_flexgen CLK_RX_ICN_DISP_0>;
resets = <&powerdown STIH407_USB2_PORT1_POWERDOWN>,
<&softreset STIH407_USB2_PORT1_SOFTRESET>;
reset-names = "power", "softreset";

5
arch/arm/common/locomo.c
View File

@ -140,7 +140,7 @@ static struct locomo_dev_info locomo_devices[] = {
static void locomo_handler(struct irq_desc *desc)
{
struct locomo *lchip = irq_desc_get_chip_data(desc);
struct locomo *lchip = irq_desc_get_handler_data(desc);
int req, i;
/* Acknowledge the parent IRQ */
@ -200,8 +200,7 @@ static void locomo_setup_irq(struct locomo *lchip)
* Install handler for IRQ_LOCOMO_HW.
*/
irq_set_irq_type(lchip->irq, IRQ_TYPE_EDGE_FALLING);
irq_set_chip_data(lchip->irq, lchip);
irq_set_chained_handler(lchip->irq, locomo_handler);
irq_set_chained_handler_and_data(lchip->irq, locomo_handler, lchip);
/* Install handlers for IRQ_LOCOMO_* */
for ( ; irq <= lchip->irq_base + 3; irq++) {

32
arch/arm/common/sa1111.c
View File

@ -472,8 +472,8 @@ static int sa1111_setup_irq(struct sa1111 *sachip, unsigned irq_base)
* specifies that S0ReadyInt and S1ReadyInt should be '1'.
*/
sa1111_writel(0, irqbase + SA1111_INTPOL0);
sa1111_writel(SA1111_IRQMASK_HI(IRQ_S0_READY_NINT) |
SA1111_IRQMASK_HI(IRQ_S1_READY_NINT),
sa1111_writel(BIT(IRQ_S0_READY_NINT & 31) |
BIT(IRQ_S1_READY_NINT & 31),
irqbase + SA1111_INTPOL1);
/* clear all IRQs */
@ -754,7 +754,7 @@ static int __sa1111_probe(struct device *me, struct resource *mem, int irq)
if (sachip->irq != NO_IRQ) {
ret = sa1111_setup_irq(sachip, pd->irq_base);
if (ret)
goto err_unmap;
goto err_clk;
}
#ifdef CONFIG_ARCH_SA1100
@ -799,6 +799,8 @@ static int __sa1111_probe(struct device *me, struct resource *mem, int irq)
return 0;
err_clk:
clk_disable(sachip->clk);
err_unmap:
iounmap(sachip->base);
err_clk_unprep:
@ -869,9 +871,9 @@ struct sa1111_save_data {
#ifdef CONFIG_PM
static int sa1111_suspend(struct platform_device *dev, pm_message_t state)
static int sa1111_suspend_noirq(struct device *dev)
{
struct sa1111 *sachip = platform_get_drvdata(dev);
struct sa1111 *sachip = dev_get_drvdata(dev);
struct sa1111_save_data *save;
unsigned long flags;
unsigned int val;
@ -934,9 +936,9 @@ static int sa1111_suspend(struct platform_device *dev, pm_message_t state)
* restored by their respective drivers, and must be called
* via LDM after this function.
*/
static int sa1111_resume(struct platform_device *dev)
static int sa1111_resume_noirq(struct device *dev)
{
struct sa1111 *sachip = platform_get_drvdata(dev);
struct sa1111 *sachip = dev_get_drvdata(dev);
struct sa1111_save_data *save;
unsigned long flags, id;
void __iomem *base;
@ -952,7 +954,7 @@ static int sa1111_resume(struct platform_device *dev)
id = sa1111_readl(sachip->base + SA1111_SKID);
if ((id & SKID_ID_MASK) != SKID_SA1111_ID) {
__sa1111_remove(sachip);
platform_set_drvdata(dev, NULL);
dev_set_drvdata(dev, NULL);
kfree(save);
return 0;
}
@ -1003,8 +1005,8 @@ static int sa1111_resume(struct platform_device *dev)
}
#else
#define sa1111_suspend NULL
#define sa1111_resume NULL
#define sa1111_suspend_noirq NULL
#define sa1111_resume_noirq NULL
#endif
static int sa1111_probe(struct platform_device *pdev)
@ -1017,7 +1019,7 @@ static int sa1111_probe(struct platform_device *pdev)
return -EINVAL;
irq = platform_get_irq(pdev, 0);
if (irq < 0)
return -ENXIO;
return irq;
return __sa1111_probe(&pdev->dev, mem, irq);
}
@ -1038,6 +1040,11 @@ static int sa1111_remove(struct platform_device *pdev)
return 0;
}
static struct dev_pm_ops sa1111_pm_ops = {
.suspend_noirq = sa1111_suspend_noirq,
.resume_noirq = sa1111_resume_noirq,
};
/*
* Not sure if this should be on the system bus or not yet.
* We really want some way to register a system device at
@ -1050,10 +1057,9 @@ static int sa1111_remove(struct platform_device *pdev)
static struct platform_driver sa1111_device_driver = {
.probe = sa1111_probe,
.remove = sa1111_remove,
.suspend = sa1111_suspend,
.resume = sa1111_resume,
.driver = {
.name = "sa1111",
.pm = &sa1111_pm_ops,
},
};

1
arch/arm/configs/keystone_defconfig
View File

@ -161,6 +161,7 @@ CONFIG_USB_MON=y
CONFIG_USB_XHCI_HCD=y
CONFIG_USB_STORAGE=y
CONFIG_USB_DWC3=y
CONFIG_NOP_USB_XCEIV=y
CONFIG_KEYSTONE_USB_PHY=y
CONFIG_NEW_LEDS=y
CONFIG_LEDS_CLASS=y

2
arch/arm/configs/multi_v7_defconfig
View File

@ -781,7 +781,7 @@ CONFIG_MXS_DMA=y
CONFIG_DMA_BCM2835=y
CONFIG_DMA_OMAP=y
CONFIG_QCOM_BAM_DMA=y
CONFIG_XILINX_VDMA=y
CONFIG_XILINX_DMA=y
CONFIG_DMA_SUN6I=y
CONFIG_STAGING=y
CONFIG_SENSORS_ISL29018=y

1
arch/arm/include/asm/pgtable-2level-hwdef.h
View File

@ -47,6 +47,7 @@
#define PMD_SECT_WB (PMD_SECT_CACHEABLE | PMD_SECT_BUFFERABLE)
#define PMD_SECT_MINICACHE (PMD_SECT_TEX(1) | PMD_SECT_CACHEABLE)
#define PMD_SECT_WBWA (PMD_SECT_TEX(1) | PMD_SECT_CACHEABLE | PMD_SECT_BUFFERABLE)
#define PMD_SECT_CACHE_MASK (PMD_SECT_TEX(1) | PMD_SECT_CACHEABLE | PMD_SECT_BUFFERABLE)
#define PMD_SECT_NONSHARED_DEV (PMD_SECT_TEX(2))
/*

1
arch/arm/include/asm/pgtable-3level-hwdef.h
View File

@ -62,6 +62,7 @@
#define PMD_SECT_WT (_AT(pmdval_t, 2) << 2) /* normal inner write-through */
#define PMD_SECT_WB (_AT(pmdval_t, 3) << 2) /* normal inner write-back */
#define PMD_SECT_WBWA (_AT(pmdval_t, 7) << 2) /* normal inner write-alloc */
#define PMD_SECT_CACHE_MASK (_AT(pmdval_t, 7) << 2)
/*
* + Level 3 descriptor (PTE)

2
arch/arm/kvm/arm.c
View File

@ -158,8 +158,6 @@ void kvm_arch_destroy_vm(struct kvm *kvm)
{
int i;
kvm_free_stage2_pgd(kvm);
for (i = 0; i < KVM_MAX_VCPUS; ++i) {
if (kvm->vcpus[i]) {
kvm_arch_vcpu_free(kvm->vcpus[i]);

4
arch/arm/kvm/mmu.c
View File

@ -1714,7 +1714,8 @@ int kvm_mmu_init(void)
kern_hyp_va(PAGE_OFFSET), kern_hyp_va(~0UL));
if (hyp_idmap_start >= kern_hyp_va(PAGE_OFFSET) &&
hyp_idmap_start < kern_hyp_va(~0UL)) {
hyp_idmap_start < kern_hyp_va(~0UL) &&
hyp_idmap_start != (unsigned long)__hyp_idmap_text_start) {
/*
* The idmap page is intersecting with the VA space,
* it is not safe to continue further.
@ -1893,6 +1894,7 @@ void kvm_arch_memslots_updated(struct kvm *kvm, struct kvm_memslots *slots)
void kvm_arch_flush_shadow_all(struct kvm *kvm)
{
kvm_free_stage2_pgd(kvm);
}
void kvm_arch_flush_shadow_memslot(struct kvm *kvm,

6
arch/arm/mach-exynos/suspend.c
View File

@ -255,6 +255,12 @@ static int __init exynos_pmu_irq_init(struct device_node *node,
return -ENOMEM;
}
/*
* Clear the OF_POPULATED flag set in of_irq_init so that
* later the Exynos PMU platform device won't be skipped.
*/
of_node_clear_flag(node, OF_POPULATED);
return 0;
}

14
arch/arm/mach-pxa/lubbock.c
View File

@ -137,6 +137,18 @@ static struct pxa2xx_udc_mach_info udc_info __initdata = {
// no D+ pullup; lubbock can't connect/disconnect in software
};
static void lubbock_init_pcmcia(void)
{
struct clk *clk;
/* Add an alias for the SA1111 PCMCIA clock */
clk = clk_get_sys("pxa2xx-pcmcia", NULL);
if (!IS_ERR(clk)) {
clkdev_create(clk, NULL, "1800");
clk_put(clk);
}
}
static struct resource sa1111_resources[] = {
[0] = {
.start = 0x10000000,
@ -467,6 +479,8 @@ static void __init lubbock_init(void)
pxa_set_btuart_info(NULL);
pxa_set_stuart_info(NULL);
lubbock_init_pcmcia();
clk_add_alias("SA1111_CLK", NULL, "GPIO11_CLK", NULL);
pxa_set_udc_info(&udc_info);
pxa_set_fb_info(NULL, &sharp_lm8v31);

62
arch/arm/mach-shmobile/regulator-quirk-rcar-gen2.c
View File

@ -41,40 +41,27 @@
#define REGULATOR_IRQ_MASK BIT(2) /* IRQ2, active low */
/* start of DA9210 System Control and Event Registers */
#define DA9210_REG_MASK_A 0x54
static void __iomem *irqc;
static const u8 da9063_mask_regs[] = {
DA9063_REG_IRQ_MASK_A,
DA9063_REG_IRQ_MASK_B,
DA9063_REG_IRQ_MASK_C,
DA9063_REG_IRQ_MASK_D,
/* first byte sets the memory pointer, following are consecutive reg values */
static u8 da9063_irq_clr[] = { DA9063_REG_IRQ_MASK_A, 0xff, 0xff, 0xff, 0xff };
static u8 da9210_irq_clr[] = { DA9210_REG_MASK_A, 0xff, 0xff };
static struct i2c_msg da9xxx_msgs[2] = {
{
.addr = 0x58,
.len = ARRAY_SIZE(da9063_irq_clr),
.buf = da9063_irq_clr,
}, {
.addr = 0x68,
.len = ARRAY_SIZE(da9210_irq_clr),
.buf = da9210_irq_clr,
},
};
/* DA9210 System Control and Event Registers */
#define DA9210_REG_MASK_A 0x54
#define DA9210_REG_MASK_B 0x55
static const u8 da9210_mask_regs[] = {
DA9210_REG_MASK_A,
DA9210_REG_MASK_B,
};
static void da9xxx_mask_irqs(struct i2c_client *client, const u8 regs[],
unsigned int nregs)
{
unsigned int i;
dev_info(&client->dev, "Masking %s interrupt sources\n", client->name);
for (i = 0; i < nregs; i++) {
int error = i2c_smbus_write_byte_data(client, regs[i], ~0);
if (error) {
dev_err(&client->dev, "i2c error %d\n", error);
return;
}
}
}
static int regulator_quirk_notify(struct notifier_block *nb,
unsigned long action, void *data)
{
@ -93,12 +80,15 @@ static int regulator_quirk_notify(struct notifier_block *nb,
client = to_i2c_client(dev);
dev_dbg(dev, "Detected %s\n", client->name);
if ((client->addr == 0x58 && !strcmp(client->name, "da9063")))
da9xxx_mask_irqs(client, da9063_mask_regs,
ARRAY_SIZE(da9063_mask_regs));
else if (client->addr == 0x68 && !strcmp(client->name, "da9210"))
da9xxx_mask_irqs(client, da9210_mask_regs,
ARRAY_SIZE(da9210_mask_regs));
if ((client->addr == 0x58 && !strcmp(client->name, "da9063")) ||
(client->addr == 0x68 && !strcmp(client->name, "da9210"))) {
int ret;
dev_info(&client->dev, "clearing da9063/da9210 interrupts\n");
ret = i2c_transfer(client->adapter, da9xxx_msgs, ARRAY_SIZE(da9xxx_msgs));
if (ret != ARRAY_SIZE(da9xxx_msgs))
dev_err(&client->dev, "i2c error %d\n", ret);
}
mon = ioread32(irqc + IRQC_MONITOR);
if (mon & REGULATOR_IRQ_MASK)

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

@ -137,7 +137,7 @@ void __init init_default_cache_policy(unsigned long pmd)
initial_pmd_value = pmd;
pmd &= PMD_SECT_TEX(1) | PMD_SECT_BUFFERABLE | PMD_SECT_CACHEABLE;
pmd &= PMD_SECT_CACHE_MASK;
for (i = 0; i < ARRAY_SIZE(cache_policies); i++)
if (cache_policies[i].pmd == pmd) {

7
arch/arm/xen/enlighten.c
View File

@ -170,9 +170,6 @@ static int xen_starting_cpu(unsigned int cpu)
pr_info("Xen: initializing cpu%d\n", cpu);
vcpup = per_cpu_ptr(xen_vcpu_info, cpu);
/* Direct vCPU id mapping for ARM guests. */
per_cpu(xen_vcpu_id, cpu) = cpu;
info.mfn = virt_to_gfn(vcpup);
info.offset = xen_offset_in_page(vcpup);
@ -330,6 +327,7 @@ static int __init xen_guest_init(void)
{
struct xen_add_to_physmap xatp;
struct shared_info *shared_info_page = NULL;
int cpu;
if (!xen_domain())
return 0;
@ -380,7 +378,8 @@ static int __init xen_guest_init(void)
return -ENOMEM;
/* Direct vCPU id mapping for ARM guests. */
per_cpu(xen_vcpu_id, 0) = 0;
for_each_possible_cpu(cpu)
per_cpu(xen_vcpu_id, cpu) = cpu;
xen_auto_xlat_grant_frames.count = gnttab_max_grant_frames();
if (xen_xlate_map_ballooned_pages(&xen_auto_xlat_grant_frames.pfn,

8
arch/arm64/boot/dts/altera/socfpga_stratix10.dtsi
View File

@ -255,10 +255,10 @@
/* Local timer */
timer {
compatible = "arm,armv8-timer";
interrupts = <1 13 0xf01>,
<1 14 0xf01>,
<1 11 0xf01>,
<1 10 0xf01>;
interrupts = <1 13 0xf08>,
<1 14 0xf08>,
<1 11 0xf08>,
<1 10 0xf08>;
};
timer0: timer0@ffc03000 {

8
arch/arm64/boot/dts/amlogic/meson-gxbb.dtsi
View File

@ -102,13 +102,13 @@
timer {
compatible = "arm,armv8-timer";
interrupts = <GIC_PPI 13
(GIC_CPU_MASK_RAW(0xff) | IRQ_TYPE_EDGE_RISING)>,
(GIC_CPU_MASK_RAW(0xff) | IRQ_TYPE_LEVEL_LOW)>,
<GIC_PPI 14
(GIC_CPU_MASK_RAW(0xff) | IRQ_TYPE_EDGE_RISING)>,
(GIC_CPU_MASK_RAW(0xff) | IRQ_TYPE_LEVEL_LOW)>,
<GIC_PPI 11
(GIC_CPU_MASK_RAW(0xff) | IRQ_TYPE_EDGE_RISING)>,
(GIC_CPU_MASK_RAW(0xff) | IRQ_TYPE_LEVEL_LOW)>,
<GIC_PPI 10
(GIC_CPU_MASK_RAW(0xff) | IRQ_TYPE_EDGE_RISING)>;
(GIC_CPU_MASK_RAW(0xff) | IRQ_TYPE_LEVEL_LOW)>;
};
xtal: xtal-clk {

8
arch/arm64/boot/dts/apm/apm-storm.dtsi
View File

@ -110,10 +110,10 @@
timer {
compatible = "arm,armv8-timer";
interrupts = <1 0 0xff01>, /* Secure Phys IRQ */
<1 13 0xff01>, /* Non-secure Phys IRQ */
<1 14 0xff01>, /* Virt IRQ */
<1 15 0xff01>; /* Hyp IRQ */
interrupts = <1 0 0xff08>, /* Secure Phys IRQ */
<1 13 0xff08>, /* Non-secure Phys IRQ */
<1 14 0xff08>, /* Virt IRQ */
<1 15 0xff08>; /* Hyp IRQ */
clock-frequency = <50000000>;
};

1
arch/arm64/boot/dts/broadcom/bcm2835-rpi.dtsi 120000
View File

@ -0,0 +1 @@
../../../../arm/boot/dts/bcm2835-rpi.dtsi

4
arch/arm64/boot/dts/broadcom/bcm2837-rpi-3-b.dts
View File

@ -1,7 +1,7 @@
/dts-v1/;
#include "bcm2837.dtsi"
#include "../../../../arm/boot/dts/bcm2835-rpi.dtsi"
#include "../../../../arm/boot/dts/bcm283x-rpi-smsc9514.dtsi"
#include "bcm2835-rpi.dtsi"
#include "bcm283x-rpi-smsc9514.dtsi"
/ {
compatible = "raspberrypi,3-model-b", "brcm,bcm2837";

2
arch/arm64/boot/dts/broadcom/bcm2837.dtsi
View File

@ -1,4 +1,4 @@
#include "../../../../arm/boot/dts/bcm283x.dtsi"
#include "bcm283x.dtsi"
/ {
compatible = "brcm,bcm2836";

1
arch/arm64/boot/dts/broadcom/bcm283x-rpi-smsc9514.dtsi 120000
View File

@ -0,0 +1 @@
../../../../arm/boot/dts/bcm283x-rpi-smsc9514.dtsi

1
arch/arm64/boot/dts/broadcom/bcm283x.dtsi 120000
View File

@ -0,0 +1 @@
../../../../arm/boot/dts/bcm283x.dtsi

8
arch/arm64/boot/dts/broadcom/ns2.dtsi
View File

@ -88,13 +88,13 @@
timer {
compatible = "arm,armv8-timer";
interrupts = <GIC_PPI 13 (GIC_CPU_MASK_RAW(0xff) |
IRQ_TYPE_EDGE_RISING)>,
IRQ_TYPE_LEVEL_LOW)>,
<GIC_PPI 14 (GIC_CPU_MASK_RAW(0xff) |
IRQ_TYPE_EDGE_RISING)>,
IRQ_TYPE_LEVEL_LOW)>,
<GIC_PPI 11 (GIC_CPU_MASK_RAW(0xff) |
IRQ_TYPE_EDGE_RISING)>,
IRQ_TYPE_LEVEL_LOW)>,
<GIC_PPI 10 (GIC_CPU_MASK_RAW(0xff) |
IRQ_TYPE_EDGE_RISING)>;
IRQ_TYPE_LEVEL_LOW)>;
};
pmu {

8
arch/arm64/boot/dts/cavium/thunder-88xx.dtsi
View File

@ -354,10 +354,10 @@
timer {
compatible = "arm,armv8-timer";
interrupts = <1 13 0xff01>,
<1 14 0xff01>,
<1 11 0xff01>,
<1 10 0xff01>;
interrupts = <1 13 4>,
<1 14 4>,
<1 11 4>,
<1 10 4>;
};
pmu {

8
arch/arm64/boot/dts/exynos/exynos7.dtsi
View File

@ -473,10 +473,10 @@
timer {
compatible = "arm,armv8-timer";
interrupts = <1 13 0xff01>,
<1 14 0xff01>,
<1 11 0xff01>,
<1 10 0xff01>;
interrupts = <1 13 0xff08>,
<1 14 0xff08>,
<1 11 0xff08>,
<1 10 0xff08>;
};
pmu_system_controller: system-controller@105c0000 {

8
arch/arm64/boot/dts/freescale/fsl-ls1043a.dtsi
View File

@ -119,10 +119,10 @@
timer {
compatible = "arm,armv8-timer";
interrupts = <1 13 0x1>, /* Physical Secure PPI */
<1 14 0x1>, /* Physical Non-Secure PPI */
<1 11 0x1>, /* Virtual PPI */
<1 10 0x1>; /* Hypervisor PPI */
interrupts = <1 13 0xf08>, /* Physical Secure PPI */
<1 14 0xf08>, /* Physical Non-Secure PPI */
<1 11 0xf08>, /* Virtual PPI */
<1 10 0xf08>; /* Hypervisor PPI */
};
pmu {

8
arch/arm64/boot/dts/freescale/fsl-ls2080a.dtsi
View File

@ -191,10 +191,10 @@
timer {
compatible = "arm,armv8-timer";
interrupts = <1 13 0x8>, /* Physical Secure PPI, active-low */
<1 14 0x8>, /* Physical Non-Secure PPI, active-low */
<1 11 0x8>, /* Virtual PPI, active-low */
<1 10 0x8>; /* Hypervisor PPI, active-low */
interrupts = <1 13 4>, /* Physical Secure PPI, active-low */
<1 14 4>, /* Physical Non-Secure PPI, active-low */
<1 11 4>, /* Virtual PPI, active-low */
<1 10 4>; /* Hypervisor PPI, active-low */
};
pmu {

8
arch/arm64/boot/dts/marvell/armada-ap806.dtsi
View File

@ -122,10 +122,10 @@
timer {
compatible = "arm,armv8-timer";
interrupts = <GIC_PPI 13 (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_EDGE_RISING)>,
<GIC_PPI 14 (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_EDGE_RISING)>,
<GIC_PPI 11 (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_EDGE_RISING)>,
<GIC_PPI 10 (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_EDGE_RISING)>;
interrupts = <GIC_PPI 13 (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_LOW)>,
<GIC_PPI 14 (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_LOW)>,
<GIC_PPI 11 (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_LOW)>,
<GIC_PPI 10 (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_LOW)>;
};
odmi: odmi@300000 {

8
arch/arm64/boot/dts/socionext/uniphier-ph1-ld20.dtsi
View File

@ -129,10 +129,10 @@
timer {
compatible = "arm,armv8-timer";
interrupts = <1 13 0xf01>,
<1 14 0xf01>,
<1 11 0xf01>,
<1 10 0xf01>;
interrupts = <1 13 4>,
<1 14 4>,
<1 11 4>,
<1 10 4>;
};
soc {

8
arch/arm64/boot/dts/xilinx/zynqmp.dtsi
View File

@ -65,10 +65,10 @@
timer {
compatible = "arm,armv8-timer";
interrupt-parent = <&gic>;
interrupts = <1 13 0xf01>,
<1 14 0xf01>,
<1 11 0xf01>,
<1 10 0xf01>;
interrupts = <1 13 0xf08>,
<1 14 0xf08>,
<1 11 0xf08>,
<1 10 0xf08>;
};
amba_apu {

11
arch/avr32/include/asm/uaccess.h
View File

@ -74,7 +74,7 @@ extern __kernel_size_t __copy_user(void *to, const void *from,
extern __kernel_size_t copy_to_user(void __user *to, const void *from,
__kernel_size_t n);
extern __kernel_size_t copy_from_user(void *to, const void __user *from,
extern __kernel_size_t ___copy_from_user(void *to, const void __user *from,
__kernel_size_t n);
static inline __kernel_size_t __copy_to_user(void __user *to, const void *from,
@ -88,6 +88,15 @@ static inline __kernel_size_t __copy_from_user(void *to,
{
return __copy_user(to, (const void __force *)from, n);
}
static inline __kernel_size_t copy_from_user(void *to,
const void __user *from,
__kernel_size_t n)
{
size_t res = ___copy_from_user(to, from, n);
if (unlikely(res))
memset(to + (n - res), 0, res);
return res;
}
#define __copy_to_user_inatomic __copy_to_user
#define __copy_from_user_inatomic __copy_from_user

2
arch/avr32/kernel/avr32_ksyms.c
View File

@ -36,7 +36,7 @@ EXPORT_SYMBOL(copy_page);
/*
* Userspace access stuff.
*/
EXPORT_SYMBOL(copy_from_user);
EXPORT_SYMBOL(___copy_from_user);
EXPORT_SYMBOL(copy_to_user);
EXPORT_SYMBOL(__copy_user);
EXPORT_SYMBOL(strncpy_from_user);

8
arch/avr32/lib/copy_user.S
View File

@ -23,13 +23,13 @@
*/
.text
.align 1
.global copy_from_user
.type copy_from_user, @function
copy_from_user:
.global ___copy_from_user
.type ___copy_from_user, @function
___copy_from_user:
branch_if_kernel r8, __copy_user
ret_if_privileged r8, r11, r10, r10
rjmp __copy_user
.size copy_from_user, . - copy_from_user
.size ___copy_from_user, . - ___copy_from_user
.global copy_to_user
.type copy_to_user, @function

9
arch/blackfin/include/asm/uaccess.h
View File

@ -171,11 +171,12 @@ static inline int bad_user_access_length(void)
static inline unsigned long __must_check
copy_from_user(void *to, const void __user *from, unsigned long n)
{
if (access_ok(VERIFY_READ, from, n))
if (likely(access_ok(VERIFY_READ, from, n))) {
memcpy(to, (const void __force *)from, n);
else
return n;
return 0;
return 0;
}
memset(to, 0, n);
return n;
}
static inline unsigned long __must_check

71
arch/cris/include/asm/uaccess.h
View File

@ -194,30 +194,6 @@ extern unsigned long __copy_user(void __user *to, const void *from, unsigned lon
extern unsigned long __copy_user_zeroing(void *to, const void __user *from, unsigned long n);
extern unsigned long __do_clear_user(void __user *to, unsigned long n);
static inline unsigned long
__generic_copy_to_user(void __user *to, const void *from, unsigned long n)
{
if (access_ok(VERIFY_WRITE, to, n))
return __copy_user(to, from, n);
return n;
}
static inline unsigned long
__generic_copy_from_user(void *to, const void __user *from, unsigned long n)
{
if (access_ok(VERIFY_READ, from, n))
return __copy_user_zeroing(to, from, n);
return n;
}
static inline unsigned long
__generic_clear_user(void __user *to, unsigned long n)
{
if (access_ok(VERIFY_WRITE, to, n))
return __do_clear_user(to, n);
return n;
}
static inline long
__strncpy_from_user(char *dst, const char __user *src, long count)
{
@ -282,7 +258,7 @@ __constant_copy_from_user(void *to, const void __user *from, unsigned long n)
else if (n == 24)
__asm_copy_from_user_24(to, from, ret);
else
ret = __generic_copy_from_user(to, from, n);
ret = __copy_user_zeroing(to, from, n);
return ret;
}
@ -333,7 +309,7 @@ __constant_copy_to_user(void __user *to, const void *from, unsigned long n)
else if (n == 24)
__asm_copy_to_user_24(to, from, ret);
else
ret = __generic_copy_to_user(to, from, n);
ret = __copy_user(to, from, n);
return ret;
}
@ -366,26 +342,43 @@ __constant_clear_user(void __user *to, unsigned long n)
else if (n == 24)
__asm_clear_24(to, ret);
else
ret = __generic_clear_user(to, n);
ret = __do_clear_user(to, n);
return ret;
}
#define clear_user(to, n) \
(__builtin_constant_p(n) ? \
__constant_clear_user(to, n) : \
__generic_clear_user(to, n))
static inline size_t clear_user(void __user *to, size_t n)
{
if (unlikely(!access_ok(VERIFY_WRITE, to, n)))
return n;
if (__builtin_constant_p(n))
return __constant_clear_user(to, n);
else
return __do_clear_user(to, n);
}
#define copy_from_user(to, from, n) \
(__builtin_constant_p(n) ? \
__constant_copy_from_user(to, from, n) : \
__generic_copy_from_user(to, from, n))
static inline size_t copy_from_user(void *to, const void __user *from, size_t n)
{
if (unlikely(!access_ok(VERIFY_READ, from, n))) {
memset(to, 0, n);
return n;
}
if (__builtin_constant_p(n))
return __constant_copy_from_user(to, from, n);
else
return __copy_user_zeroing(to, from, n);
}
#define copy_to_user(to, from, n) \
(__builtin_constant_p(n) ? \
__constant_copy_to_user(to, from, n) : \
__generic_copy_to_user(to, from, n))
static inline size_t copy_to_user(void __user *to, const void *from, size_t n)
{
if (unlikely(!access_ok(VERIFY_WRITE, to, n)))
return n;
if (__builtin_constant_p(n))
return __constant_copy_to_user(to, from, n);
else
return __copy_user(to, from, n);
}
/* We let the __ versions of copy_from/to_user inline, because they're often
* used in fast paths and have only a small space overhead.

12
arch/frv/include/asm/uaccess.h
View File

@ -263,19 +263,25 @@ do { \
extern long __memset_user(void *dst, unsigned long count);
extern long __memcpy_user(void *dst, const void *src, unsigned long count);
#define clear_user(dst,count) __memset_user(____force(dst), (count))
#define __clear_user(dst,count) __memset_user(____force(dst), (count))
#define __copy_from_user_inatomic(to, from, n) __memcpy_user((to), ____force(from), (n))
#define __copy_to_user_inatomic(to, from, n) __memcpy_user(____force(to), (from), (n))
#else
#define clear_user(dst,count) (memset(____force(dst), 0, (count)), 0)
#define __clear_user(dst,count) (memset(____force(dst), 0, (count)), 0)
#define __copy_from_user_inatomic(to, from, n) (memcpy((to), ____force(from), (n)), 0)
#define __copy_to_user_inatomic(to, from, n) (memcpy(____force(to), (from), (n)), 0)
#endif
#define __clear_user clear_user
static inline unsigned long __must_check
clear_user(void __user *to, unsigned long n)
{
if (likely(__access_ok(to, n)))
n = __clear_user(to, n);
return n;
}
static inline unsigned long __must_check
__copy_to_user(void __user *to, const void *from, unsigned long n)

3
arch/hexagon/include/asm/uaccess.h
View File

@ -103,7 +103,8 @@ static inline long hexagon_strncpy_from_user(char *dst, const char __user *src,
{
long res = __strnlen_user(src, n);
/* return from strnlen can't be zero -- that would be rubbish. */
if (unlikely(!res))
return -EFAULT;
if (res > n) {
copy_from_user(dst, src, n);

23
arch/ia64/include/asm/uaccess.h
View File

@ -269,19 +269,16 @@ __copy_from_user (void *to, const void __user *from, unsigned long count)
__cu_len; \
})
#define copy_from_user(to, from, n) \
({ \
void *__cu_to = (to); \
const void __user *__cu_from = (from); \
long __cu_len = (n); \
\
__chk_user_ptr(__cu_from); \
if (__access_ok(__cu_from, __cu_len, get_fs())) { \
check_object_size(__cu_to, __cu_len, false); \
__cu_len = __copy_user((__force void __user *) __cu_to, __cu_from, __cu_len); \
} \
__cu_len; \
})
static inline unsigned long
copy_from_user(void *to, const void __user *from, unsigned long n)
{
check_object_size(to, n, false);
if (likely(__access_ok(from, n, get_fs())))
n = __copy_user((__force void __user *) to, from, n);
else
memset(to, 0, n);
return n;
}
#define __copy_in_user(to, from, size) __copy_user((to), (from), (size))

2
arch/m32r/include/asm/uaccess.h
View File

@ -219,7 +219,7 @@ extern int fixup_exception(struct pt_regs *regs);
#define __get_user_nocheck(x, ptr, size) \
({ \
long __gu_err = 0; \
unsigned long __gu_val; \
unsigned long __gu_val = 0; \
might_fault(); \
__get_user_size(__gu_val, (ptr), (size), __gu_err); \
(x) = (__force __typeof__(*(ptr)))__gu_val; \

3
arch/metag/include/asm/uaccess.h
View File

@ -204,8 +204,9 @@ extern unsigned long __must_check __copy_user_zeroing(void *to,
static inline unsigned long
copy_from_user(void *to, const void __user *from, unsigned long n)
{
if (access_ok(VERIFY_READ, from, n))
if (likely(access_ok(VERIFY_READ, from, n)))
return __copy_user_zeroing(to, from, n);
memset(to, 0, n);
return n;
}

11
arch/microblaze/include/asm/uaccess.h
View File

@ -227,7 +227,7 @@ extern long __user_bad(void);
#define __get_user(x, ptr) \
({ \
unsigned long __gu_val; \
unsigned long __gu_val = 0; \
/*unsigned long __gu_ptr = (unsigned long)(ptr);*/ \
long __gu_err; \
switch (sizeof(*(ptr))) { \
@ -373,10 +373,13 @@ extern long __user_bad(void);
static inline long copy_from_user(void *to,
const void __user *from, unsigned long n)
{
unsigned long res = n;
might_fault();
if (access_ok(VERIFY_READ, from, n))
return __copy_from_user(to, from, n);
return n;
if (likely(access_ok(VERIFY_READ, from, n)))
res = __copy_from_user(to, from, n);
if (unlikely(res))
memset(to + (n - res), 0, res);
return res;
}
#define __copy_to_user(to, from, n) \

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

@ -14,6 +14,7 @@
#include <linux/kernel.h>
#include <linux/errno.h>
#include <linux/thread_info.h>
#include <linux/string.h>
#include <asm/asm-eva.h>
/*
@ -1170,6 +1171,8 @@ extern size_t __copy_in_user_eva(void *__to, const void *__from, size_t __n);
__cu_len = __invoke_copy_from_user(__cu_to, \
__cu_from, \
__cu_len); \
} else { \
memset(__cu_to, 0, __cu_len); \
} \
} \
__cu_len; \

1
arch/mn10300/include/asm/uaccess.h
View File

@ -166,6 +166,7 @@ struct __large_struct { unsigned long buf[100]; };
"2:\n" \
" .section .fixup,\"ax\"\n" \
"3:\n\t" \
" mov 0,%1\n" \
" mov %3,%0\n" \
" jmp 2b\n" \
" .previous\n" \

4
arch/mn10300/lib/usercopy.c
View File

@ -9,7 +9,7 @@
* as published by the Free Software Foundation; either version
* 2 of the Licence, or (at your option) any later version.
*/
#include <asm/uaccess.h>
#include <linux/uaccess.h>
unsigned long
__generic_copy_to_user(void *to, const void *from, unsigned long n)
@ -24,6 +24,8 @@ __generic_copy_from_user(void *to, const void *from, unsigned long n)
{
if (access_ok(VERIFY_READ, from, n))
__copy_user_zeroing(to, from, n);
else
memset(to, 0, n);
return n;
}

13
arch/nios2/include/asm/uaccess.h
View File

@ -102,9 +102,12 @@ extern long __copy_to_user(void __user *to, const void *from, unsigned long n);
static inline long copy_from_user(void *to, const void __user *from,
unsigned long n)
{
if (!access_ok(VERIFY_READ, from, n))
return n;
return __copy_from_user(to, from, n);
unsigned long res = n;
if (access_ok(VERIFY_READ, from, n))
res = __copy_from_user(to, from, n);
if (unlikely(res))
memset(to + (n - res), 0, res);
return res;
}
static inline long copy_to_user(void __user *to, const void *from,
@ -139,7 +142,7 @@ extern long strnlen_user(const char __user *s, long n);
#define __get_user_unknown(val, size, ptr, err) do { \
err = 0; \
if (copy_from_user(&(val), ptr, size)) { \
if (__copy_from_user(&(val), ptr, size)) { \
err = -EFAULT; \
} \
} while (0)
@ -166,7 +169,7 @@ do { \
({ \
long __gu_err = -EFAULT; \
const __typeof__(*(ptr)) __user *__gu_ptr = (ptr); \
unsigned long __gu_val; \
unsigned long __gu_val = 0; \
__get_user_common(__gu_val, sizeof(*(ptr)), __gu_ptr, __gu_err);\
(x) = (__force __typeof__(x))__gu_val; \
__gu_err; \

33
arch/openrisc/include/asm/uaccess.h
View File

@ -273,28 +273,20 @@ __copy_tofrom_user(void *to, const void *from, unsigned long size);
static inline unsigned long
copy_from_user(void *to, const void *from, unsigned long n)
{
unsigned long over;
unsigned long res = n;
if (access_ok(VERIFY_READ, from, n))
return __copy_tofrom_user(to, from, n);
if ((unsigned long)from < TASK_SIZE) {
over = (unsigned long)from + n - TASK_SIZE;
return __copy_tofrom_user(to, from, n - over) + over;
}
return n;
if (likely(access_ok(VERIFY_READ, from, n)))
res = __copy_tofrom_user(to, from, n);
if (unlikely(res))
memset(to + (n - res), 0, res);
return res;
}
static inline unsigned long
copy_to_user(void *to, const void *from, unsigned long n)
{
unsigned long over;
if (access_ok(VERIFY_WRITE, to, n))
return __copy_tofrom_user(to, from, n);
if ((unsigned long)to < TASK_SIZE) {
over = (unsigned long)to + n - TASK_SIZE;
return __copy_tofrom_user(to, from, n - over) + over;
}
if (likely(access_ok(VERIFY_WRITE, to, n)))
n = __copy_tofrom_user(to, from, n);
return n;
}
@ -303,13 +295,8 @@ extern unsigned long __clear_user(void *addr, unsigned long size);
static inline __must_check unsigned long
clear_user(void *addr, unsigned long size)
{
if (access_ok(VERIFY_WRITE, addr, size))
return __clear_user(addr, size);
if ((unsigned long)addr < TASK_SIZE) {
unsigned long over = (unsigned long)addr + size - TASK_SIZE;
return __clear_user(addr, size - over) + over;
}
if (likely(access_ok(VERIFY_WRITE, addr, size)))
size = __clear_user(addr, size);
return size;
}

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

@ -10,6 +10,7 @@
#include <asm-generic/uaccess-unaligned.h>
#include <linux/bug.h>
#include <linux/string.h>
#define VERIFY_READ 0
#define VERIFY_WRITE 1
@ -221,7 +222,7 @@ static inline unsigned long __must_check copy_from_user(void *to,
unsigned long n)
{
int sz = __compiletime_object_size(to);
int ret = -EFAULT;
unsigned long ret = n;
if (likely(sz == -1 || sz >= n))
ret = __copy_from_user(to, from, n);
@ -230,6 +231,8 @@ static inline unsigned long __must_check copy_from_user(void *to,
else
__bad_copy_user();
if (unlikely(ret))
memset(to + (n - ret), 0, ret);
return ret;
}

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

@ -15,7 +15,7 @@ static inline bool early_cpu_has_feature(unsigned long feature)
#ifdef CONFIG_JUMP_LABEL_FEATURE_CHECKS
#include <linux/jump_label.h>
#define NUM_CPU_FTR_KEYS 64
#define NUM_CPU_FTR_KEYS BITS_PER_LONG
extern struct static_key_true cpu_feature_keys[NUM_CPU_FTR_KEYS];

23
arch/powerpc/include/asm/uaccess.h
View File

@ -308,36 +308,21 @@ extern unsigned long __copy_tofrom_user(void __user *to,
static inline unsigned long copy_from_user(void *to,
const void __user *from, unsigned long n)
{
unsigned long over;
if (access_ok(VERIFY_READ, from, n)) {
if (likely(access_ok(VERIFY_READ, from, n))) {
check_object_size(to, n, false);
return __copy_tofrom_user((__force void __user *)to, from, n);
}
if ((unsigned long)from < TASK_SIZE) {
over = (unsigned long)from + n - TASK_SIZE;
check_object_size(to, n - over, false);
return __copy_tofrom_user((__force void __user *)to, from,
n - over) + over;
}
memset(to, 0, n);
return n;
}
static inline unsigned long copy_to_user(void __user *to,
const void *from, unsigned long n)
{
unsigned long over;
if (access_ok(VERIFY_WRITE, to, n)) {
check_object_size(from, n, true);
return __copy_tofrom_user(to, (__force void __user *)from, n);
}
if ((unsigned long)to < TASK_SIZE) {
over = (unsigned long)to + n - TASK_SIZE;
check_object_size(from, n - over, true);
return __copy_tofrom_user(to, (__force void __user *)from,
n - over) + over;
}
return n;
}
@ -434,10 +419,6 @@ static inline unsigned long clear_user(void __user *addr, unsigned long size)
might_fault();
if (likely(access_ok(VERIFY_WRITE, addr, size)))
return __clear_user(addr, size);
if ((unsigned long)addr < TASK_SIZE) {
unsigned long over = (unsigned long)addr + size - TASK_SIZE;
return __clear_user(addr, size - over) + over;
}
return size;
}

10
arch/powerpc/kernel/idle_book3s.S
View File

@ -411,7 +411,7 @@ END_FTR_SECTION_IFSET(CPU_FTR_ARCH_300)
*
* r13 - PACA
* cr3 - gt if waking up with partial/complete hypervisor state loss
* cr4 - eq if waking up from complete hypervisor state loss.
* cr4 - gt or eq if waking up from complete hypervisor state loss.
*/
_GLOBAL(pnv_wakeup_tb_loss)
ld r1,PACAR1(r13)
@ -453,7 +453,7 @@ lwarx_loop2:
* At this stage
* cr2 - eq if first thread to wakeup in core
* cr3- gt if waking up with partial/complete hypervisor state loss
* cr4 - eq if waking up from complete hypervisor state loss.
* cr4 - gt or eq if waking up from complete hypervisor state loss.
*/
ori r15,r15,PNV_CORE_IDLE_LOCK_BIT
@ -481,7 +481,7 @@ first_thread_in_subcore:
* If waking up from sleep, subcore state is not lost. Hence
* skip subcore state restore
*/
bne cr4,subcore_state_restored
blt cr4,subcore_state_restored
/* Restore per-subcore state */
ld r4,_SDR1(r1)
@ -526,7 +526,7 @@ timebase_resync:
* If waking up from sleep, per core state is not lost, skip to
* clear_lock.
*/
bne cr4,clear_lock
blt cr4,clear_lock
/*
* First thread in the core to wake up and its waking up with
@ -557,7 +557,7 @@ common_exit:
* If waking up from sleep, hypervisor state is not lost. Hence
* skip hypervisor state restore.
*/
bne cr4,hypervisor_state_restored
blt cr4,hypervisor_state_restored
/* Waking up from winkle */

26
arch/powerpc/platforms/powernv/pci-ioda.c
View File

@ -2217,7 +2217,7 @@ static long pnv_pci_ioda2_set_window(struct iommu_table_group *table_group,
pnv_pci_link_table_and_group(phb->hose->node, num,
tbl, &pe->table_group);
pnv_pci_phb3_tce_invalidate_pe(pe);
pnv_pci_ioda2_tce_invalidate_pe(pe);
return 0;
}
@ -2355,7 +2355,7 @@ static long pnv_pci_ioda2_unset_window(struct iommu_table_group *table_group,
if (ret)
pe_warn(pe, "Unmapping failed, ret = %ld\n", ret);
else
pnv_pci_phb3_tce_invalidate_pe(pe);
pnv_pci_ioda2_tce_invalidate_pe(pe);
pnv_pci_unlink_table_and_group(table_group->tables[num], table_group);
@ -3426,7 +3426,17 @@ static void pnv_ioda_release_pe(struct pnv_ioda_pe *pe)
}
}
pnv_ioda_free_pe(pe);
/*
* The PE for root bus can be removed because of hotplug in EEH
* recovery for fenced PHB error. We need to mark the PE dead so
* that it can be populated again in PCI hot add path. The PE
* shouldn't be destroyed as it's the global reserved resource.
*/
if (phb->ioda.root_pe_populated &&
phb->ioda.root_pe_idx == pe->pe_number)
phb->ioda.root_pe_populated = false;
else
pnv_ioda_free_pe(pe);
}
static void pnv_pci_release_device(struct pci_dev *pdev)
@ -3442,7 +3452,17 @@ static void pnv_pci_release_device(struct pci_dev *pdev)
if (!pdn || pdn->pe_number == IODA_INVALID_PE)
return;
/*
* PCI hotplug can happen as part of EEH error recovery. The @pdn
* isn't removed and added afterwards in this scenario. We should
* set the PE number in @pdn to an invalid one. Otherwise, the PE's
* device count is decreased on removing devices while failing to
* be increased on adding devices. It leads to unbalanced PE's device
* count and eventually make normal PCI hotplug path broken.
*/
pe = &phb->ioda.pe_array[pdn->pe_number];
pdn->pe_number = IODA_INVALID_PE;
WARN_ON(--pe->device_count < 0);
if (pe->device_count == 0)
pnv_ioda_release_pe(pe);

8
arch/s390/include/asm/uaccess.h
View File

@ -266,28 +266,28 @@ int __put_user_bad(void) __attribute__((noreturn));
__chk_user_ptr(ptr); \
switch (sizeof(*(ptr))) { \
case 1: { \
unsigned char __x; \
unsigned char __x = 0; \
__gu_err = __get_user_fn(&__x, ptr, \
sizeof(*(ptr))); \
(x) = *(__force __typeof__(*(ptr)) *) &__x; \
break; \
}; \
case 2: { \
unsigned short __x; \
unsigned short __x = 0; \
__gu_err = __get_user_fn(&__x, ptr, \
sizeof(*(ptr))); \
(x) = *(__force __typeof__(*(ptr)) *) &__x; \
break; \
}; \
case 4: { \
unsigned int __x; \
unsigned int __x = 0; \
__gu_err = __get_user_fn(&__x, ptr, \
sizeof(*(ptr))); \
(x) = *(__force __typeof__(*(ptr)) *) &__x; \
break; \
}; \
case 8: { \
unsigned long long __x; \
unsigned long long __x = 0; \
__gu_err = __get_user_fn(&__x, ptr, \
sizeof(*(ptr))); \
(x) = *(__force __typeof__(*(ptr)) *) &__x; \

10
arch/s390/kvm/kvm-s390.c
View File

@ -2231,9 +2231,10 @@ int kvm_arch_vcpu_ioctl_set_fpu(struct kvm_vcpu *vcpu, struct kvm_fpu *fpu)
return -EINVAL;
current->thread.fpu.fpc = fpu->fpc;
if (MACHINE_HAS_VX)
convert_fp_to_vx(current->thread.fpu.vxrs, (freg_t *)fpu->fprs);
convert_fp_to_vx((__vector128 *) vcpu->run->s.regs.vrs,
(freg_t *) fpu->fprs);
else
memcpy(current->thread.fpu.fprs, &fpu->fprs, sizeof(fpu->fprs));
memcpy(vcpu->run->s.regs.fprs, &fpu->fprs, sizeof(fpu->fprs));
return 0;
}
@ -2242,9 +2243,10 @@ int kvm_arch_vcpu_ioctl_get_fpu(struct kvm_vcpu *vcpu, struct kvm_fpu *fpu)
/* make sure we have the latest values */
save_fpu_regs();
if (MACHINE_HAS_VX)
convert_vx_to_fp((freg_t *)fpu->fprs, current->thread.fpu.vxrs);
convert_vx_to_fp((freg_t *) fpu->fprs,
(__vector128 *) vcpu->run->s.regs.vrs);
else
memcpy(fpu->fprs, current->thread.fpu.fprs, sizeof(fpu->fprs));
memcpy(fpu->fprs, vcpu->run->s.regs.fprs, sizeof(fpu->fprs));
fpu->fpc = current->thread.fpu.fpc;
return 0;
}

2
arch/s390/kvm/vsie.c
View File

@ -584,7 +584,7 @@ static int pin_blocks(struct kvm_vcpu *vcpu, struct vsie_page *vsie_page)
/* Validity 0x0044 will be checked by SIE */
if (rc)
goto unpin;
scb_s->gvrd = hpa;
scb_s->riccbd = hpa;
}
return 0;
unpin:

46
arch/score/include/asm/uaccess.h
View File

@ -163,7 +163,7 @@ do { \
__get_user_asm(val, "lw", ptr); \
break; \
case 8: \
if ((copy_from_user((void *)&val, ptr, 8)) == 0) \
if (__copy_from_user((void *)&val, ptr, 8) == 0) \
__gu_err = 0; \
else \
__gu_err = -EFAULT; \
@ -188,6 +188,8 @@ do { \
\
if (likely(access_ok(VERIFY_READ, __gu_ptr, size))) \
__get_user_common((x), size, __gu_ptr); \
else \
(x) = 0; \
\
__gu_err; \
})
@ -201,6 +203,7 @@ do { \
"2:\n" \
".section .fixup,\"ax\"\n" \
"3:li %0, %4\n" \
"li %1, 0\n" \
"j 2b\n" \
".previous\n" \
".section __ex_table,\"a\"\n" \
@ -298,35 +301,34 @@ extern int __copy_tofrom_user(void *to, const void *from, unsigned long len);
static inline unsigned long
copy_from_user(void *to, const void *from, unsigned long len)
{
unsigned long over;
unsigned long res = len;
if (access_ok(VERIFY_READ, from, len))
return __copy_tofrom_user(to, from, len);
if (likely(access_ok(VERIFY_READ, from, len)))
res = __copy_tofrom_user(to, from, len);
if ((unsigned long)from < TASK_SIZE) {
over = (unsigned long)from + len - TASK_SIZE;
return __copy_tofrom_user(to, from, len - over) + over;
}
return len;
if (unlikely(res))
memset(to + (len - res), 0, res);
return res;
}
static inline unsigned long
copy_to_user(void *to, const void *from, unsigned long len)
{
unsigned long over;
if (likely(access_ok(VERIFY_WRITE, to, len)))
len = __copy_tofrom_user(to, from, len);
if (access_ok(VERIFY_WRITE, to, len))
return __copy_tofrom_user(to, from, len);
if ((unsigned long)to < TASK_SIZE) {
over = (unsigned long)to + len - TASK_SIZE;
return __copy_tofrom_user(to, from, len - over) + over;
}
return len;
}
#define __copy_from_user(to, from, len) \
__copy_tofrom_user((to), (from), (len))
static inline unsigned long
__copy_from_user(void *to, const void *from, unsigned long len)
{
unsigned long left = __copy_tofrom_user(to, from, len);
if (unlikely(left))
memset(to + (len - left), 0, left);
return left;
}
#define __copy_to_user(to, from, len) \
__copy_tofrom_user((to), (from), (len))
@ -340,17 +342,17 @@ __copy_to_user_inatomic(void *to, const void *from, unsigned long len)
static inline unsigned long
__copy_from_user_inatomic(void *to, const void *from, unsigned long len)
{
return __copy_from_user(to, from, len);
return __copy_tofrom_user(to, from, len);
}
#define __copy_in_user(to, from, len) __copy_from_user(to, from, len)
#define __copy_in_user(to, from, len) __copy_tofrom_user(to, from, len)
static inline unsigned long
copy_in_user(void *to, const void *from, unsigned long len)
{
if (access_ok(VERIFY_READ, from, len) &&
access_ok(VERFITY_WRITE, to, len))
return copy_from_user(to, from, len);
return __copy_tofrom_user(to, from, len);
}
/*

5
arch/sh/include/asm/uaccess.h
View File

@ -151,7 +151,10 @@ copy_from_user(void *to, const void __user *from, unsigned long n)
__kernel_size_t __copy_size = (__kernel_size_t) n;
if (__copy_size && __access_ok(__copy_from, __copy_size))
return __copy_user(to, from, __copy_size);
__copy_size = __copy_user(to, from, __copy_size);
if (unlikely(__copy_size))
memset(to + (n - __copy_size), 0, __copy_size);
return __copy_size;
}

1
arch/sh/include/asm/uaccess_64.h
View File

@ -24,6 +24,7 @@
#define __get_user_size(x,ptr,size,retval) \
do { \
retval = 0; \
x = 0; \
switch (size) { \
case 1: \
retval = __get_user_asm_b((void *)&x, \

4
arch/sparc/include/asm/uaccess_32.h
View File

@ -266,8 +266,10 @@ static inline unsigned long copy_from_user(void *to, const void __user *from, un
if (n && __access_ok((unsigned long) from, n)) {
check_object_size(to, n, false);
return __copy_user((__force void __user *) to, from, n);
} else
} else {
memset(to, 0, n);
return n;
}
}
static inline unsigned long __copy_from_user(void *to, const void __user *from, unsigned long n)

132
arch/x86/boot/compressed/eboot.c
View File

@ -1004,79 +1004,87 @@ static efi_status_t alloc_e820ext(u32 nr_desc, struct setup_data **e820ext,
return status;
}
struct exit_boot_struct {
struct boot_params *boot_params;
struct efi_info *efi;
struct setup_data *e820ext;
__u32 e820ext_size;
bool is64;
};
static efi_status_t exit_boot_func(efi_system_table_t *sys_table_arg,
struct efi_boot_memmap *map,
void *priv)
{
static bool first = true;
const char *signature;
__u32 nr_desc;
efi_status_t status;
struct exit_boot_struct *p = priv;
if (first) {
nr_desc = *map->buff_size / *map->desc_size;
if (nr_desc > ARRAY_SIZE(p->boot_params->e820_map)) {
u32 nr_e820ext = nr_desc -
ARRAY_SIZE(p->boot_params->e820_map);
status = alloc_e820ext(nr_e820ext, &p->e820ext,
&p->e820ext_size);
if (status != EFI_SUCCESS)
return status;
}
first = false;
}
signature = p->is64 ? EFI64_LOADER_SIGNATURE : EFI32_LOADER_SIGNATURE;
memcpy(&p->efi->efi_loader_signature, signature, sizeof(__u32));
p->efi->efi_systab = (unsigned long)sys_table_arg;
p->efi->efi_memdesc_size = *map->desc_size;
p->efi->efi_memdesc_version = *map->desc_ver;
p->efi->efi_memmap = (unsigned long)*map->map;
p->efi->efi_memmap_size = *map->map_size;
#ifdef CONFIG_X86_64
p->efi->efi_systab_hi = (unsigned long)sys_table_arg >> 32;
p->efi->efi_memmap_hi = (unsigned long)*map->map >> 32;
#endif
return EFI_SUCCESS;
}
static efi_status_t exit_boot(struct boot_params *boot_params,
void *handle, bool is64)
{
struct efi_info *efi = &boot_params->efi_info;
unsigned long map_sz, key, desc_size;
unsigned long map_sz, key, desc_size, buff_size;
efi_memory_desc_t *mem_map;
struct setup_data *e820ext;
const char *signature;
__u32 e820ext_size;
__u32 nr_desc, prev_nr_desc;
efi_status_t status;
__u32 desc_version;
bool called_exit = false;
u8 nr_entries;
int i;
struct efi_boot_memmap map;
struct exit_boot_struct priv;
nr_desc = 0;
e820ext = NULL;
e820ext_size = 0;
get_map:
status = efi_get_memory_map(sys_table, &mem_map, &map_sz, &desc_size,
&desc_version, &key);
map.map = &mem_map;
map.map_size = &map_sz;
map.desc_size = &desc_size;
map.desc_ver = &desc_version;
map.key_ptr = &key;
map.buff_size = &buff_size;
priv.boot_params = boot_params;
priv.efi = &boot_params->efi_info;
priv.e820ext = NULL;
priv.e820ext_size = 0;
priv.is64 = is64;
/* Might as well exit boot services now */
status = efi_exit_boot_services(sys_table, handle, &map, &priv,
exit_boot_func);
if (status != EFI_SUCCESS)
return status;
prev_nr_desc = nr_desc;
nr_desc = map_sz / desc_size;
if (nr_desc > prev_nr_desc &&
nr_desc > ARRAY_SIZE(boot_params->e820_map)) {
u32 nr_e820ext = nr_desc - ARRAY_SIZE(boot_params->e820_map);
status = alloc_e820ext(nr_e820ext, &e820ext, &e820ext_size);
if (status != EFI_SUCCESS)
goto free_mem_map;
efi_call_early(free_pool, mem_map);
goto get_map; /* Allocated memory, get map again */
}
signature = is64 ? EFI64_LOADER_SIGNATURE : EFI32_LOADER_SIGNATURE;
memcpy(&efi->efi_loader_signature, signature, sizeof(__u32));
efi->efi_systab = (unsigned long)sys_table;
efi->efi_memdesc_size = desc_size;
efi->efi_memdesc_version = desc_version;
efi->efi_memmap = (unsigned long)mem_map;
efi->efi_memmap_size = map_sz;
#ifdef CONFIG_X86_64
efi->efi_systab_hi = (unsigned long)sys_table >> 32;
efi->efi_memmap_hi = (unsigned long)mem_map >> 32;
#endif
/* Might as well exit boot services now */
status = efi_call_early(exit_boot_services, handle, key);
if (status != EFI_SUCCESS) {
/*
* ExitBootServices() will fail if any of the event
* handlers change the memory map. In which case, we
* must be prepared to retry, but only once so that
* we're guaranteed to exit on repeated failures instead
* of spinning forever.
*/
if (called_exit)
goto free_mem_map;
called_exit = true;
efi_call_early(free_pool, mem_map);
goto get_map;
}
e820ext = priv.e820ext;
e820ext_size = priv.e820ext_size;
/* Historic? */
boot_params->alt_mem_k = 32 * 1024;
@ -1085,10 +1093,6 @@ get_map:
return status;
return EFI_SUCCESS;
free_mem_map:
efi_call_early(free_pool, mem_map);
return status;
}
/*

4
arch/x86/events/amd/core.c
View File

@ -119,8 +119,8 @@ static const u64 amd_perfmon_event_map[PERF_COUNT_HW_MAX] =
{
[PERF_COUNT_HW_CPU_CYCLES] = 0x0076,
[PERF_COUNT_HW_INSTRUCTIONS] = 0x00c0,
[PERF_COUNT_HW_CACHE_REFERENCES] = 0x0080,
[PERF_COUNT_HW_CACHE_MISSES] = 0x0081,
[PERF_COUNT_HW_CACHE_REFERENCES] = 0x077d,
[PERF_COUNT_HW_CACHE_MISSES] = 0x077e,
[PERF_COUNT_HW_BRANCH_INSTRUCTIONS] = 0x00c2,
[PERF_COUNT_HW_BRANCH_MISSES] = 0x00c3,
[PERF_COUNT_HW_STALLED_CYCLES_FRONTEND] = 0x00d0, /* "Decoder empty" event */

22
arch/x86/events/amd/uncore.c
View File

@ -29,6 +29,8 @@
#define COUNTER_SHIFT 16
static HLIST_HEAD(uncore_unused_list);
struct amd_uncore {
int id;
int refcnt;
@ -39,7 +41,7 @@ struct amd_uncore {
cpumask_t *active_mask;
struct pmu *pmu;
struct perf_event *events[MAX_COUNTERS];
struct amd_uncore *free_when_cpu_online;
struct hlist_node node;
};
static struct amd_uncore * __percpu *amd_uncore_nb;
@ -306,6 +308,7 @@ static int amd_uncore_cpu_up_prepare(unsigned int cpu)
uncore_nb->msr_base = MSR_F15H_NB_PERF_CTL;
uncore_nb->active_mask = &amd_nb_active_mask;
uncore_nb->pmu = &amd_nb_pmu;
uncore_nb->id = -1;
*per_cpu_ptr(amd_uncore_nb, cpu) = uncore_nb;
}
@ -319,6 +322,7 @@ static int amd_uncore_cpu_up_prepare(unsigned int cpu)
uncore_l2->msr_base = MSR_F16H_L2I_PERF_CTL;
uncore_l2->active_mask = &amd_l2_active_mask;
uncore_l2->pmu = &amd_l2_pmu;
uncore_l2->id = -1;
*per_cpu_ptr(amd_uncore_l2, cpu) = uncore_l2;
}
@ -348,7 +352,7 @@ amd_uncore_find_online_sibling(struct amd_uncore *this,
continue;
if (this->id == that->id) {
that->free_when_cpu_online = this;
hlist_add_head(&this->node, &uncore_unused_list);
this = that;
break;
}
@ -388,13 +392,23 @@ static int amd_uncore_cpu_starting(unsigned int cpu)
return 0;
}
static void uncore_clean_online(void)
{
struct amd_uncore *uncore;
struct hlist_node *n;
hlist_for_each_entry_safe(uncore, n, &uncore_unused_list, node) {
hlist_del(&uncore->node);
kfree(uncore);
}
}
static void uncore_online(unsigned int cpu,
struct amd_uncore * __percpu *uncores)
{
struct amd_uncore *uncore = *per_cpu_ptr(uncores, cpu);
kfree(uncore->free_when_cpu_online);
uncore->free_when_cpu_online = NULL;
uncore_clean_online();
if (cpu == uncore->cpu)
cpumask_set_cpu(cpu, uncore->active_mask);

123
arch/x86/events/intel/bts.c
View File

@ -31,7 +31,17 @@
struct bts_ctx {
struct perf_output_handle handle;
struct debug_store ds_back;
int started;
int state;
};
/* BTS context states: */
enum {
/* no ongoing AUX transactions */
BTS_STATE_STOPPED = 0,
/* AUX transaction is on, BTS tracing is disabled */
BTS_STATE_INACTIVE,
/* AUX transaction is on, BTS tracing is running */
BTS_STATE_ACTIVE,
};
static DEFINE_PER_CPU(struct bts_ctx, bts_ctx);
@ -204,6 +214,15 @@ static void bts_update(struct bts_ctx *bts)
static int
bts_buffer_reset(struct bts_buffer *buf, struct perf_output_handle *handle);
/*
* Ordering PMU callbacks wrt themselves and the PMI is done by means
* of bts::state, which:
* - is set when bts::handle::event is valid, that is, between
* perf_aux_output_begin() and perf_aux_output_end();
* - is zero otherwise;
* - is ordered against bts::handle::event with a compiler barrier.
*/
static void __bts_event_start(struct perf_event *event)
{
struct bts_ctx *bts = this_cpu_ptr(&bts_ctx);
@ -221,10 +240,13 @@ static void __bts_event_start(struct perf_event *event)
/*
* local barrier to make sure that ds configuration made it
* before we enable BTS
* before we enable BTS and bts::state goes ACTIVE
*/
wmb();
/* INACTIVE/STOPPED -> ACTIVE */
WRITE_ONCE(bts->state, BTS_STATE_ACTIVE);
intel_pmu_enable_bts(config);
}
@ -251,9 +273,6 @@ static void bts_event_start(struct perf_event *event, int flags)
__bts_event_start(event);
/* PMI handler: this counter is running and likely generating PMIs */
ACCESS_ONCE(bts->started) = 1;
return;
fail_end_stop:
@ -263,30 +282,34 @@ fail_stop:
event->hw.state = PERF_HES_STOPPED;
}
static void __bts_event_stop(struct perf_event *event)
static void __bts_event_stop(struct perf_event *event, int state)
{
struct bts_ctx *bts = this_cpu_ptr(&bts_ctx);
/* ACTIVE -> INACTIVE(PMI)/STOPPED(->stop()) */
WRITE_ONCE(bts->state, state);
/*
* No extra synchronization is mandated by the documentation to have
* BTS data stores globally visible.
*/
intel_pmu_disable_bts();
if (event->hw.state & PERF_HES_STOPPED)
return;
ACCESS_ONCE(event->hw.state) |= PERF_HES_STOPPED;
}
static void bts_event_stop(struct perf_event *event, int flags)
{
struct cpu_hw_events *cpuc = this_cpu_ptr(&cpu_hw_events);
struct bts_ctx *bts = this_cpu_ptr(&bts_ctx);
struct bts_buffer *buf = perf_get_aux(&bts->handle);
struct bts_buffer *buf = NULL;
int state = READ_ONCE(bts->state);
/* PMI handler: don't restart this counter */
ACCESS_ONCE(bts->started) = 0;
if (state == BTS_STATE_ACTIVE)
__bts_event_stop(event, BTS_STATE_STOPPED);
__bts_event_stop(event);
if (state != BTS_STATE_STOPPED)
buf = perf_get_aux(&bts->handle);
event->hw.state |= PERF_HES_STOPPED;
if (flags & PERF_EF_UPDATE) {
bts_update(bts);
@ -296,6 +319,7 @@ static void bts_event_stop(struct perf_event *event, int flags)
bts->handle.head =
local_xchg(&buf->data_size,
buf->nr_pages << PAGE_SHIFT);
perf_aux_output_end(&bts->handle, local_xchg(&buf->data_size, 0),
!!local_xchg(&buf->lost, 0));
}
@ -310,8 +334,20 @@ static void bts_event_stop(struct perf_event *event, int flags)
void intel_bts_enable_local(void)
{
struct bts_ctx *bts = this_cpu_ptr(&bts_ctx);
int state = READ_ONCE(bts->state);
if (bts->handle.event && bts->started)
/*
* Here we transition from INACTIVE to ACTIVE;
* if we instead are STOPPED from the interrupt handler,
* stay that way. Can't be ACTIVE here though.
*/
if (WARN_ON_ONCE(state == BTS_STATE_ACTIVE))
return;
if (state == BTS_STATE_STOPPED)
return;
if (bts->handle.event)
__bts_event_start(bts->handle.event);
}
@ -319,8 +355,15 @@ void intel_bts_disable_local(void)
{
struct bts_ctx *bts = this_cpu_ptr(&bts_ctx);
/*
* Here we transition from ACTIVE to INACTIVE;
* do nothing for STOPPED or INACTIVE.
*/
if (READ_ONCE(bts->state) != BTS_STATE_ACTIVE)
return;
if (bts->handle.event)
__bts_event_stop(bts->handle.event);
__bts_event_stop(bts->handle.event, BTS_STATE_INACTIVE);
}
static int
@ -335,8 +378,6 @@ bts_buffer_reset(struct bts_buffer *buf, struct perf_output_handle *handle)
return 0;
head = handle->head & ((buf->nr_pages << PAGE_SHIFT) - 1);
if (WARN_ON_ONCE(head != local_read(&buf->head)))
return -EINVAL;
phys = &buf->buf[buf->cur_buf];
space = phys->offset + phys->displacement + phys->size - head;
@ -403,22 +444,37 @@ bts_buffer_reset(struct bts_buffer *buf, struct perf_output_handle *handle)
int intel_bts_interrupt(void)
{
struct debug_store *ds = this_cpu_ptr(&cpu_hw_events)->ds;
struct bts_ctx *bts = this_cpu_ptr(&bts_ctx);
struct perf_event *event = bts->handle.event;
struct bts_buffer *buf;
s64 old_head;
int err;
int err = -ENOSPC, handled = 0;
if (!event || !bts->started)
return 0;
/*
* The only surefire way of knowing if this NMI is ours is by checking
* the write ptr against the PMI threshold.
*/
if (ds->bts_index >= ds->bts_interrupt_threshold)
handled = 1;
/*
* this is wrapped in intel_bts_enable_local/intel_bts_disable_local,
* so we can only be INACTIVE or STOPPED
*/
if (READ_ONCE(bts->state) == BTS_STATE_STOPPED)
return handled;
buf = perf_get_aux(&bts->handle);
if (!buf)
return handled;
/*
* Skip snapshot counters: they don't use the interrupt, but
* there's no other way of telling, because the pointer will
* keep moving
*/
if (!buf || buf->snapshot)
if (buf->snapshot)
return 0;
old_head = local_read(&buf->head);
@ -426,18 +482,27 @@ int intel_bts_interrupt(void)
/* no new data */
if (old_head == local_read(&buf->head))
return 0;
return handled;
perf_aux_output_end(&bts->handle, local_xchg(&buf->data_size, 0),
!!local_xchg(&buf->lost, 0));
buf = perf_aux_output_begin(&bts->handle, event);
if (!buf)
return 1;
if (buf)
err = bts_buffer_reset(buf, &bts->handle);
err = bts_buffer_reset(buf, &bts->handle);
if (err)
perf_aux_output_end(&bts->handle, 0, false);
if (err) {
WRITE_ONCE(bts->state, BTS_STATE_STOPPED);
if (buf) {
/*
* BTS_STATE_STOPPED should be visible before
* cleared handle::event
*/
barrier();
perf_aux_output_end(&bts->handle, 0, false);
}
}
return 1;
}

15
arch/x86/events/intel/core.c
View File

@ -1730,9 +1730,11 @@ static __initconst const u64 knl_hw_cache_extra_regs
* disabled state if called consecutively.
*
* During consecutive calls, the same disable value will be written to related
* registers, so the PMU state remains unchanged. hw.state in
* intel_bts_disable_local will remain PERF_HES_STOPPED too in consecutive
* calls.
* registers, so the PMU state remains unchanged.
*
* intel_bts events don't coexist with intel PMU's BTS events because of
* x86_add_exclusive(x86_lbr_exclusive_lbr); there's no need to keep them
* disabled around intel PMU's event batching etc, only inside the PMI handler.
*/
static void __intel_pmu_disable_all(void)
{
@ -1742,8 +1744,6 @@ static void __intel_pmu_disable_all(void)
if (test_bit(INTEL_PMC_IDX_FIXED_BTS, cpuc->active_mask))
intel_pmu_disable_bts();
else
intel_bts_disable_local();
intel_pmu_pebs_disable_all();
}
@ -1771,8 +1771,7 @@ static void __intel_pmu_enable_all(int added, bool pmi)
return;
intel_pmu_enable_bts(event->hw.config);
} else
intel_bts_enable_local();
}
}
static void intel_pmu_enable_all(int added)
@ -2073,6 +2072,7 @@ static int intel_pmu_handle_irq(struct pt_regs *regs)
*/
if (!x86_pmu.late_ack)
apic_write(APIC_LVTPC, APIC_DM_NMI);
intel_bts_disable_local();
__intel_pmu_disable_all();
handled = intel_pmu_drain_bts_buffer();
handled += intel_bts_interrupt();
@ -2172,6 +2172,7 @@ done:
/* Only restore PMU state when it's active. See x86_pmu_disable(). */
if (cpuc->enabled)
__intel_pmu_enable_all(0, true);
intel_bts_enable_local();
/*
* Only unmask the NMI after the overflow counters

9
arch/x86/events/intel/cqm.c
View File

@ -458,6 +458,11 @@ static void __intel_cqm_event_count(void *info);
static void init_mbm_sample(u32 rmid, u32 evt_type);
static void __intel_mbm_event_count(void *info);
static bool is_cqm_event(int e)
{
return (e == QOS_L3_OCCUP_EVENT_ID);
}
static bool is_mbm_event(int e)
{
return (e >= QOS_MBM_TOTAL_EVENT_ID && e <= QOS_MBM_LOCAL_EVENT_ID);
@ -1366,6 +1371,10 @@ static int intel_cqm_event_init(struct perf_event *event)
(event->attr.config > QOS_MBM_LOCAL_EVENT_ID))
return -EINVAL;
if ((is_cqm_event(event->attr.config) && !cqm_enabled) ||
(is_mbm_event(event->attr.config) && !mbm_enabled))
return -EINVAL;
/* unsupported modes and filters */
if (event->attr.exclude_user ||
event->attr.exclude_kernel ||

19
arch/x86/events/intel/ds.c
View File

@ -1274,18 +1274,18 @@ static void intel_pmu_drain_pebs_nhm(struct pt_regs *iregs)
struct pebs_record_nhm *p = at;
u64 pebs_status;
/* PEBS v3 has accurate status bits */
pebs_status = p->status & cpuc->pebs_enabled;
pebs_status &= (1ULL << x86_pmu.max_pebs_events) - 1;
/* PEBS v3 has more accurate status bits */
if (x86_pmu.intel_cap.pebs_format >= 3) {
for_each_set_bit(bit, (unsigned long *)&p->status,
MAX_PEBS_EVENTS)
for_each_set_bit(bit, (unsigned long *)&pebs_status,
x86_pmu.max_pebs_events)
counts[bit]++;
continue;
}
pebs_status = p->status & cpuc->pebs_enabled;
pebs_status &= (1ULL << x86_pmu.max_pebs_events) - 1;
/*
* On some CPUs the PEBS status can be zero when PEBS is
* racing with clearing of GLOBAL_STATUS.
@ -1333,8 +1333,11 @@ static void intel_pmu_drain_pebs_nhm(struct pt_regs *iregs)
continue;
event = cpuc->events[bit];
WARN_ON_ONCE(!event);
WARN_ON_ONCE(!event->attr.precise_ip);
if (WARN_ON_ONCE(!event))
continue;
if (WARN_ON_ONCE(!event->attr.precise_ip))
continue;
/* log dropped samples number */
if (error[bit])

18
arch/x86/events/intel/pt.c
View File

@ -1074,6 +1074,11 @@ static void pt_addr_filters_fini(struct perf_event *event)
event->hw.addr_filters = NULL;
}
static inline bool valid_kernel_ip(unsigned long ip)
{
return virt_addr_valid(ip) && kernel_ip(ip);
}
static int pt_event_addr_filters_validate(struct list_head *filters)
{
struct perf_addr_filter *filter;
@ -1081,11 +1086,16 @@ static int pt_event_addr_filters_validate(struct list_head *filters)
list_for_each_entry(filter, filters, entry) {
/* PT doesn't support single address triggers */
if (!filter->range)
if (!filter->range || !filter->size)
return -EOPNOTSUPP;
if (!filter->inode && !kernel_ip(filter->offset))
return -EINVAL;
if (!filter->inode) {
if (!valid_kernel_ip(filter->offset))
return -EINVAL;
if (!valid_kernel_ip(filter->offset + filter->size))
return -EINVAL;
}
if (++range > pt_cap_get(PT_CAP_num_address_ranges))
return -EOPNOTSUPP;
@ -1111,7 +1121,7 @@ static void pt_event_addr_filters_sync(struct perf_event *event)
} else {
/* apply the offset */
msr_a = filter->offset + offs[range];
msr_b = filter->size + msr_a;
msr_b = filter->size + msr_a - 1;
}
filters->filter[range].msr_a = msr_a;

6
arch/x86/include/asm/uaccess.h
View File

@ -433,7 +433,11 @@ do { \
#define __get_user_asm_ex(x, addr, itype, rtype, ltype) \
asm volatile("1: mov"itype" %1,%"rtype"0\n" \
"2:\n" \
_ASM_EXTABLE_EX(1b, 2b) \
".section .fixup,\"ax\"\n" \
"3:xor"itype" %"rtype"0,%"rtype"0\n" \
" jmp 2b\n" \
".previous\n" \
_ASM_EXTABLE_EX(1b, 3b) \
: ltype(x) : "m" (__m(addr)))
#define __put_user_nocheck(x, ptr, size) \

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

@ -2093,7 +2093,6 @@ int generic_processor_info(int apicid, int version)
return -EINVAL;
}
num_processors++;
if (apicid == boot_cpu_physical_apicid) {
/*
* x86_bios_cpu_apicid is required to have processors listed
@ -2116,10 +2115,13 @@ int generic_processor_info(int apicid, int version)
pr_warning("APIC: Package limit reached. Processor %d/0x%x ignored.\n",
thiscpu, apicid);
disabled_cpus++;
return -ENOSPC;
}
num_processors++;
/*
* Validate version
*/

13
arch/x86/kernel/cpu/microcode/amd.c
View File

@ -54,6 +54,7 @@ static LIST_HEAD(pcache);
*/
static u8 *container;
static size_t container_size;
static bool ucode_builtin;
static u32 ucode_new_rev;
static u8 amd_ucode_patch[PATCH_MAX_SIZE];
@ -281,18 +282,22 @@ static bool __init load_builtin_amd_microcode(struct cpio_data *cp,
void __init load_ucode_amd_bsp(unsigned int family)
{
struct cpio_data cp;
bool *builtin;
void **data;
size_t *size;
#ifdef CONFIG_X86_32
data = (void **)__pa_nodebug(&ucode_cpio.data);
size = (size_t *)__pa_nodebug(&ucode_cpio.size);
builtin = (bool *)__pa_nodebug(&ucode_builtin);
#else
data = &ucode_cpio.data;
size = &ucode_cpio.size;
builtin = &ucode_builtin;
#endif
if (!load_builtin_amd_microcode(&cp, family))
*builtin = load_builtin_amd_microcode(&cp, family);
if (!*builtin)
cp = find_ucode_in_initrd();
if (!(cp.data && cp.size))
@ -373,7 +378,8 @@ void load_ucode_amd_ap(void)
return;
/* Add CONFIG_RANDOMIZE_MEMORY offset. */
cont += PAGE_OFFSET - __PAGE_OFFSET_BASE;
if (!ucode_builtin)
cont += PAGE_OFFSET - __PAGE_OFFSET_BASE;
eax = cpuid_eax(0x00000001);
eq = (struct equiv_cpu_entry *)(cont + CONTAINER_HDR_SZ);
@ -439,7 +445,8 @@ int __init save_microcode_in_initrd_amd(void)
container = cont_va;
/* Add CONFIG_RANDOMIZE_MEMORY offset. */
container += PAGE_OFFSET - __PAGE_OFFSET_BASE;
if (!ucode_builtin)
container += PAGE_OFFSET - __PAGE_OFFSET_BASE;
eax = cpuid_eax(0x00000001);
eax = ((eax >> 8) & 0xf) + ((eax >> 20) & 0xff);

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

@ -289,6 +289,7 @@ void __init kvmclock_init(void)
put_cpu();
x86_platform.calibrate_tsc = kvm_get_tsc_khz;
x86_platform.calibrate_cpu = kvm_get_tsc_khz;
x86_platform.get_wallclock = kvm_get_wallclock;
x86_platform.set_wallclock = kvm_set_wallclock;
#ifdef CONFIG_X86_LOCAL_APIC

8
arch/x86/kvm/ioapic.c
View File

@ -109,6 +109,7 @@ static void __rtc_irq_eoi_tracking_restore_one(struct kvm_vcpu *vcpu)
{
bool new_val, old_val;
struct kvm_ioapic *ioapic = vcpu->kvm->arch.vioapic;
struct dest_map *dest_map = &ioapic->rtc_status.dest_map;
union kvm_ioapic_redirect_entry *e;
e = &ioapic->redirtbl[RTC_GSI];
@ -117,16 +118,17 @@ static void __rtc_irq_eoi_tracking_restore_one(struct kvm_vcpu *vcpu)
return;
new_val = kvm_apic_pending_eoi(vcpu, e->fields.vector);
old_val = test_bit(vcpu->vcpu_id, ioapic->rtc_status.dest_map.map);
old_val = test_bit(vcpu->vcpu_id, dest_map->map);
if (new_val == old_val)
return;
if (new_val) {
__set_bit(vcpu->vcpu_id, ioapic->rtc_status.dest_map.map);
__set_bit(vcpu->vcpu_id, dest_map->map);
dest_map->vectors[vcpu->vcpu_id] = e->fields.vector;
ioapic->rtc_status.pending_eoi++;
} else {
__clear_bit(vcpu->vcpu_id, ioapic->rtc_status.dest_map.map);
__clear_bit(vcpu->vcpu_id, dest_map->map);
ioapic->rtc_status.pending_eoi--;
rtc_status_pending_eoi_check_valid(ioapic);
}

4
arch/x86/kvm/pmu_amd.c
View File

@ -23,8 +23,8 @@
static struct kvm_event_hw_type_mapping amd_event_mapping[] = {
[0] = { 0x76, 0x00, PERF_COUNT_HW_CPU_CYCLES },
[1] = { 0xc0, 0x00, PERF_COUNT_HW_INSTRUCTIONS },
[2] = { 0x80, 0x00, PERF_COUNT_HW_CACHE_REFERENCES },
[3] = { 0x81, 0x00, PERF_COUNT_HW_CACHE_MISSES },
[2] = { 0x7d, 0x07, PERF_COUNT_HW_CACHE_REFERENCES },
[3] = { 0x7e, 0x07, PERF_COUNT_HW_CACHE_MISSES },
[4] = { 0xc2, 0x00, PERF_COUNT_HW_BRANCH_INSTRUCTIONS },
[5] = { 0xc3, 0x00, PERF_COUNT_HW_BRANCH_MISSES },
[6] = { 0xd0, 0x00, PERF_COUNT_HW_STALLED_CYCLES_FRONTEND },

8
arch/x86/kvm/x86.c
View File

@ -2743,16 +2743,16 @@ void kvm_arch_vcpu_load(struct kvm_vcpu *vcpu, int cpu)
if (tsc_delta < 0)
mark_tsc_unstable("KVM discovered backwards TSC");
if (kvm_lapic_hv_timer_in_use(vcpu) &&
kvm_x86_ops->set_hv_timer(vcpu,
kvm_get_lapic_tscdeadline_msr(vcpu)))
kvm_lapic_switch_to_sw_timer(vcpu);
if (check_tsc_unstable()) {
u64 offset = kvm_compute_tsc_offset(vcpu,
vcpu->arch.last_guest_tsc);
kvm_x86_ops->write_tsc_offset(vcpu, offset);
vcpu->arch.tsc_catchup = 1;
}
if (kvm_lapic_hv_timer_in_use(vcpu) &&
kvm_x86_ops->set_hv_timer(vcpu,
kvm_get_lapic_tscdeadline_msr(vcpu)))
kvm_lapic_switch_to_sw_timer(vcpu);
/*
* On a host with synchronized TSC, there is no need to update
* kvmclock on vcpu->cpu migration

20
arch/x86/pci/fixup.c
View File

@ -553,15 +553,21 @@ static void twinhead_reserve_killing_zone(struct pci_dev *dev)
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x27B9, twinhead_reserve_killing_zone);
/*
* Broadwell EP Home Agent BARs erroneously return non-zero values when read.
* Device [8086:2fc0]
* Erratum HSE43
* CONFIG_TDP_NOMINAL CSR Implemented at Incorrect Offset
* http://www.intel.com/content/www/us/en/processors/xeon/xeon-e5-v3-spec-update.html
*
* See http://www.intel.com/content/www/us/en/processors/xeon/xeon-e5-v4-spec-update.html
* entry BDF2.
* Devices [8086:6f60,6fa0,6fc0]
* Erratum BDF2
* PCI BARs in the Home Agent Will Return Non-Zero Values During Enumeration
* http://www.intel.com/content/www/us/en/processors/xeon/xeon-e5-v4-spec-update.html
*/
static void pci_bdwep_bar(struct pci_dev *dev)
static void pci_invalid_bar(struct pci_dev *dev)
{
dev->non_compliant_bars = 1;
}
DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, 0x6f60, pci_bdwep_bar);
DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, 0x6fa0, pci_bdwep_bar);
DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, 0x6fc0, pci_bdwep_bar);
DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, 0x2fc0, pci_invalid_bar);
DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, 0x6f60, pci_invalid_bar);
DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, 0x6fa0, pci_invalid_bar);
DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, 0x6fc0, pci_invalid_bar);

9
crypto/cryptd.c
View File

@ -631,9 +631,14 @@ static int cryptd_hash_export(struct ahash_request *req, void *out)
static int cryptd_hash_import(struct ahash_request *req, const void *in)
{
struct cryptd_hash_request_ctx *rctx = ahash_request_ctx(req);
struct crypto_ahash *tfm = crypto_ahash_reqtfm(req);
struct cryptd_hash_ctx *ctx = crypto_ahash_ctx(tfm);
struct shash_desc *desc = cryptd_shash_desc(req);
return crypto_shash_import(&rctx->desc, in);
desc->tfm = ctx->child;
desc->flags = req->base.flags;
return crypto_shash_import(desc, in);
}
static int cryptd_create_hash(struct crypto_template *tmpl, struct rtattr **tb,

4
drivers/base/power/runtime.c
View File

@ -419,7 +419,7 @@ static int rpm_suspend(struct device *dev, int rpmflags)
struct device *parent = NULL;
int retval;
trace_rpm_suspend(dev, rpmflags);
trace_rpm_suspend_rcuidle(dev, rpmflags);
repeat:
retval = rpm_check_suspend_allowed(dev);
@ -549,7 +549,7 @@ static int rpm_suspend(struct device *dev, int rpmflags)
}
out:
trace_rpm_return_int(dev, _THIS_IP_, retval);
trace_rpm_return_int_rcuidle(dev, _THIS_IP_, retval);
return retval;

16
drivers/clk/sunxi-ng/ccu-sun8i-h3.c
View File

@ -783,14 +783,14 @@ static struct ccu_reset_map sun8i_h3_ccu_resets[] = {
[RST_BUS_I2S1] = { 0x2d0, BIT(13) },
[RST_BUS_I2S2] = { 0x2d0, BIT(14) },
[RST_BUS_I2C0] = { 0x2d4, BIT(0) },
[RST_BUS_I2C1] = { 0x2d4, BIT(1) },
[RST_BUS_I2C2] = { 0x2d4, BIT(2) },
[RST_BUS_UART0] = { 0x2d4, BIT(16) },
[RST_BUS_UART1] = { 0x2d4, BIT(17) },
[RST_BUS_UART2] = { 0x2d4, BIT(18) },
[RST_BUS_UART3] = { 0x2d4, BIT(19) },
[RST_BUS_SCR] = { 0x2d4, BIT(20) },
[RST_BUS_I2C0] = { 0x2d8, BIT(0) },
[RST_BUS_I2C1] = { 0x2d8, BIT(1) },
[RST_BUS_I2C2] = { 0x2d8, BIT(2) },
[RST_BUS_UART0] = { 0x2d8, BIT(16) },
[RST_BUS_UART1] = { 0x2d8, BIT(17) },
[RST_BUS_UART2] = { 0x2d8, BIT(18) },
[RST_BUS_UART3] = { 0x2d8, BIT(19) },
[RST_BUS_SCR] = { 0x2d8, BIT(20) },
};
static const struct sunxi_ccu_desc sun8i_h3_ccu_desc = {

6
drivers/clk/sunxi-ng/ccu_nk.c
View File

@ -14,9 +14,9 @@
#include "ccu_gate.h"
#include "ccu_nk.h"
void ccu_nk_find_best(unsigned long parent, unsigned long rate,
unsigned int max_n, unsigned int max_k,
unsigned int *n, unsigned int *k)
static void ccu_nk_find_best(unsigned long parent, unsigned long rate,
unsigned int max_n, unsigned int max_k,
unsigned int *n, unsigned int *k)
{
unsigned long best_rate = 0;
unsigned int best_k = 0, best_n = 0;

4
drivers/clk/sunxi/clk-a10-pll2.c
View File

@ -73,7 +73,7 @@ static void __init sun4i_pll2_setup(struct device_node *node,
SUN4I_PLL2_PRE_DIV_WIDTH,
CLK_DIVIDER_ONE_BASED | CLK_DIVIDER_ALLOW_ZERO,
&sun4i_a10_pll2_lock);
if (!prediv_clk) {
if (IS_ERR(prediv_clk)) {
pr_err("Couldn't register the prediv clock\n");
goto err_free_array;
}
@ -106,7 +106,7 @@ static void __init sun4i_pll2_setup(struct device_node *node,
&mult->hw, &clk_multiplier_ops,
&gate->hw, &clk_gate_ops,
CLK_SET_RATE_PARENT);
if (!base_clk) {
if (IS_ERR(base_clk)) {
pr_err("Couldn't register the base multiplier clock\n");
goto err_free_multiplier;
}

2
drivers/clk/sunxi/clk-sun8i-mbus.c
View File

@ -48,7 +48,7 @@ static void __init sun8i_a23_mbus_setup(struct device_node *node)
return;
reg = of_io_request_and_map(node, 0, of_node_full_name(node));
if (!reg) {
if (IS_ERR(reg)) {
pr_err("Could not get registers for sun8i-mbus-clk\n");
goto err_free_parents;
}

7
drivers/firmware/efi/efi.c
View File

@ -657,9 +657,12 @@ static int __init fdt_find_uefi_params(unsigned long node, const char *uname,
}
if (subnode) {
node = of_get_flat_dt_subnode_by_name(node, subnode);
if (node < 0)
int err = of_get_flat_dt_subnode_by_name(node, subnode);
if (err < 0)
return 0;
node = err;
}
return __find_uefi_params(node, info, dt_params[i].params);

169
drivers/firmware/efi/libstub/efi-stub-helper.c
View File

@ -41,6 +41,8 @@ static unsigned long __chunk_size = EFI_READ_CHUNK_SIZE;
#define EFI_ALLOC_ALIGN EFI_PAGE_SIZE
#endif
#define EFI_MMAP_NR_SLACK_SLOTS 8
struct file_info {
efi_file_handle_t *handle;
u64 size;
@ -63,49 +65,62 @@ void efi_printk(efi_system_table_t *sys_table_arg, char *str)
}
}
static inline bool mmap_has_headroom(unsigned long buff_size,
unsigned long map_size,
unsigned long desc_size)
{
unsigned long slack = buff_size - map_size;
return slack / desc_size >= EFI_MMAP_NR_SLACK_SLOTS;
}
efi_status_t efi_get_memory_map(efi_system_table_t *sys_table_arg,
efi_memory_desc_t **map,
unsigned long *map_size,
unsigned long *desc_size,
u32 *desc_ver,
unsigned long *key_ptr)
struct efi_boot_memmap *map)
{
efi_memory_desc_t *m = NULL;
efi_status_t status;
unsigned long key;
u32 desc_version;
*map_size = sizeof(*m) * 32;
*map->desc_size = sizeof(*m);
*map->map_size = *map->desc_size * 32;
*map->buff_size = *map->map_size;
again:
/*
* Add an additional efi_memory_desc_t because we're doing an
* allocation which may be in a new descriptor region.
*/
*map_size += sizeof(*m);
status = efi_call_early(allocate_pool, EFI_LOADER_DATA,
*map_size, (void **)&m);
*map->map_size, (void **)&m);
if (status != EFI_SUCCESS)
goto fail;
*desc_size = 0;
*map->desc_size = 0;
key = 0;
status = efi_call_early(get_memory_map, map_size, m,
&key, desc_size, &desc_version);
if (status == EFI_BUFFER_TOO_SMALL) {
status = efi_call_early(get_memory_map, map->map_size, m,
&key, map->desc_size, &desc_version);
if (status == EFI_BUFFER_TOO_SMALL ||
!mmap_has_headroom(*map->buff_size, *map->map_size,
*map->desc_size)) {
efi_call_early(free_pool, m);
/*
* Make sure there is some entries of headroom so that the
* buffer can be reused for a new map after allocations are
* no longer permitted. Its unlikely that the map will grow to
* exceed this headroom once we are ready to trigger
* ExitBootServices()
*/
*map->map_size += *map->desc_size * EFI_MMAP_NR_SLACK_SLOTS;
*map->buff_size = *map->map_size;
goto again;
}
if (status != EFI_SUCCESS)
efi_call_early(free_pool, m);
if (key_ptr && status == EFI_SUCCESS)
*key_ptr = key;
if (desc_ver && status == EFI_SUCCESS)
*desc_ver = desc_version;
if (map->key_ptr && status == EFI_SUCCESS)
*map->key_ptr = key;
if (map->desc_ver && status == EFI_SUCCESS)
*map->desc_ver = desc_version;
fail:
*map = m;
*map->map = m;
return status;
}
@ -113,13 +128,20 @@ fail:
unsigned long get_dram_base(efi_system_table_t *sys_table_arg)
{
efi_status_t status;
unsigned long map_size;
unsigned long map_size, buff_size;
unsigned long membase = EFI_ERROR;
struct efi_memory_map map;
efi_memory_desc_t *md;
struct efi_boot_memmap boot_map;
status = efi_get_memory_map(sys_table_arg, (efi_memory_desc_t **)&map.map,
&map_size, &map.desc_size, NULL, NULL);
boot_map.map = (efi_memory_desc_t **)&map.map;
boot_map.map_size = &map_size;
boot_map.desc_size = &map.desc_size;
boot_map.desc_ver = NULL;
boot_map.key_ptr = NULL;
boot_map.buff_size = &buff_size;
status = efi_get_memory_map(sys_table_arg, &boot_map);
if (status != EFI_SUCCESS)
return membase;
@ -144,15 +166,22 @@ efi_status_t efi_high_alloc(efi_system_table_t *sys_table_arg,
unsigned long size, unsigned long align,
unsigned long *addr, unsigned long max)
{
unsigned long map_size, desc_size;
unsigned long map_size, desc_size, buff_size;
efi_memory_desc_t *map;
efi_status_t status;
unsigned long nr_pages;
u64 max_addr = 0;
int i;
struct efi_boot_memmap boot_map;
status = efi_get_memory_map(sys_table_arg, &map, &map_size, &desc_size,
NULL, NULL);
boot_map.map = &map;
boot_map.map_size = &map_size;
boot_map.desc_size = &desc_size;
boot_map.desc_ver = NULL;
boot_map.key_ptr = NULL;
boot_map.buff_size = &buff_size;
status = efi_get_memory_map(sys_table_arg, &boot_map);
if (status != EFI_SUCCESS)
goto fail;
@ -230,14 +259,21 @@ efi_status_t efi_low_alloc(efi_system_table_t *sys_table_arg,
unsigned long size, unsigned long align,
unsigned long *addr)
{
unsigned long map_size, desc_size;
unsigned long map_size, desc_size, buff_size;
efi_memory_desc_t *map;
efi_status_t status;
unsigned long nr_pages;
int i;
struct efi_boot_memmap boot_map;
status = efi_get_memory_map(sys_table_arg, &map, &map_size, &desc_size,
NULL, NULL);
boot_map.map = &map;
boot_map.map_size = &map_size;
boot_map.desc_size = &desc_size;
boot_map.desc_ver = NULL;
boot_map.key_ptr = NULL;
boot_map.buff_size = &buff_size;
status = efi_get_memory_map(sys_table_arg, &boot_map);
if (status != EFI_SUCCESS)
goto fail;
@ -704,3 +740,76 @@ char *efi_convert_cmdline(efi_system_table_t *sys_table_arg,
*cmd_line_len = options_bytes;
return (char *)cmdline_addr;
}
/*
* Handle calling ExitBootServices according to the requirements set out by the
* spec. Obtains the current memory map, and returns that info after calling
* ExitBootServices. The client must specify a function to perform any
* processing of the memory map data prior to ExitBootServices. A client
* specific structure may be passed to the function via priv. The client
* function may be called multiple times.
*/
efi_status_t efi_exit_boot_services(efi_system_table_t *sys_table_arg,
void *handle,
struct efi_boot_memmap *map,
void *priv,
efi_exit_boot_map_processing priv_func)
{
efi_status_t status;
status = efi_get_memory_map(sys_table_arg, map);
if (status != EFI_SUCCESS)
goto fail;
status = priv_func(sys_table_arg, map, priv);
if (status != EFI_SUCCESS)
goto free_map;
status = efi_call_early(exit_boot_services, handle, *map->key_ptr);
if (status == EFI_INVALID_PARAMETER) {
/*
* The memory map changed between efi_get_memory_map() and
* exit_boot_services(). Per the UEFI Spec v2.6, Section 6.4:
* EFI_BOOT_SERVICES.ExitBootServices we need to get the
* updated map, and try again. The spec implies one retry
* should be sufficent, which is confirmed against the EDK2
* implementation. Per the spec, we can only invoke
* get_memory_map() and exit_boot_services() - we cannot alloc
* so efi_get_memory_map() cannot be used, and we must reuse
* the buffer. For all practical purposes, the headroom in the
* buffer should account for any changes in the map so the call
* to get_memory_map() is expected to succeed here.
*/
*map->map_size = *map->buff_size;
status = efi_call_early(get_memory_map,
map->map_size,
*map->map,
map->key_ptr,
map->desc_size,
map->desc_ver);
/* exit_boot_services() was called, thus cannot free */
if (status != EFI_SUCCESS)
goto fail;
status = priv_func(sys_table_arg, map, priv);
/* exit_boot_services() was called, thus cannot free */
if (status != EFI_SUCCESS)
goto fail;
status = efi_call_early(exit_boot_services, handle, *map->key_ptr);
}
/* exit_boot_services() was called, thus cannot free */
if (status != EFI_SUCCESS)
goto fail;
return EFI_SUCCESS;
free_map:
efi_call_early(free_pool, *map->map);
fail:
return status;
}

54
drivers/firmware/efi/libstub/fdt.c
View File

@ -152,6 +152,27 @@ fdt_set_fail:
#define EFI_FDT_ALIGN EFI_PAGE_SIZE
#endif
struct exit_boot_struct {
efi_memory_desc_t *runtime_map;
int *runtime_entry_count;
};
static efi_status_t exit_boot_func(efi_system_table_t *sys_table_arg,
struct efi_boot_memmap *map,
void *priv)
{
struct exit_boot_struct *p = priv;
/*
* Update the memory map with virtual addresses. The function will also
* populate @runtime_map with copies of just the EFI_MEMORY_RUNTIME
* entries so that we can pass it straight to SetVirtualAddressMap()
*/
efi_get_virtmap(*map->map, *map->map_size, *map->desc_size,
p->runtime_map, p->runtime_entry_count);
return EFI_SUCCESS;
}
/*
* Allocate memory for a new FDT, then add EFI, commandline, and
* initrd related fields to the FDT. This routine increases the
@ -175,13 +196,22 @@ efi_status_t allocate_new_fdt_and_exit_boot(efi_system_table_t *sys_table,
unsigned long fdt_addr,
unsigned long fdt_size)
{
unsigned long map_size, desc_size;
unsigned long map_size, desc_size, buff_size;
u32 desc_ver;
unsigned long mmap_key;
efi_memory_desc_t *memory_map, *runtime_map;
unsigned long new_fdt_size;
efi_status_t status;
int runtime_entry_count = 0;
struct efi_boot_memmap map;
struct exit_boot_struct priv;
map.map = &runtime_map;
map.map_size = &map_size;
map.desc_size = &desc_size;
map.desc_ver = &desc_ver;
map.key_ptr = &mmap_key;
map.buff_size = &buff_size;
/*
* Get a copy of the current memory map that we will use to prepare
@ -189,8 +219,7 @@ efi_status_t allocate_new_fdt_and_exit_boot(efi_system_table_t *sys_table,
* subsequent allocations adding entries, since they could not affect
* the number of EFI_MEMORY_RUNTIME regions.
*/
status = efi_get_memory_map(sys_table, &runtime_map, &map_size,
&desc_size, &desc_ver, &mmap_key);
status = efi_get_memory_map(sys_table, &map);
if (status != EFI_SUCCESS) {
pr_efi_err(sys_table, "Unable to retrieve UEFI memory map.\n");
return status;
@ -199,6 +228,7 @@ efi_status_t allocate_new_fdt_and_exit_boot(efi_system_table_t *sys_table,
pr_efi(sys_table,
"Exiting boot services and installing virtual address map...\n");
map.map = &memory_map;
/*
* Estimate size of new FDT, and allocate memory for it. We
* will allocate a bigger buffer if this ends up being too
@ -218,8 +248,7 @@ efi_status_t allocate_new_fdt_and_exit_boot(efi_system_table_t *sys_table,
* we can get the memory map key needed for
* exit_boot_services().
*/
status = efi_get_memory_map(sys_table, &memory_map, &map_size,
&desc_size, &desc_ver, &mmap_key);
status = efi_get_memory_map(sys_table, &map);
if (status != EFI_SUCCESS)
goto fail_free_new_fdt;
@ -250,16 +279,11 @@ efi_status_t allocate_new_fdt_and_exit_boot(efi_system_table_t *sys_table,
}
}
/*
* Update the memory map with virtual addresses. The function will also
* populate @runtime_map with copies of just the EFI_MEMORY_RUNTIME
* entries so that we can pass it straight into SetVirtualAddressMap()
*/
efi_get_virtmap(memory_map, map_size, desc_size, runtime_map,
&runtime_entry_count);
/* Now we are ready to exit_boot_services.*/
status = sys_table->boottime->exit_boot_services(handle, mmap_key);
sys_table->boottime->free_pool(memory_map);
priv.runtime_map = runtime_map;
priv.runtime_entry_count = &runtime_entry_count;
status = efi_exit_boot_services(sys_table, handle, &map, &priv,
exit_boot_func);
if (status == EFI_SUCCESS) {
efi_set_virtual_address_map_t *svam;

12
drivers/firmware/efi/libstub/random.c
View File

@ -73,12 +73,20 @@ efi_status_t efi_random_alloc(efi_system_table_t *sys_table_arg,
unsigned long random_seed)
{
unsigned long map_size, desc_size, total_slots = 0, target_slot;
unsigned long buff_size;
efi_status_t status;
efi_memory_desc_t *memory_map;
int map_offset;
struct efi_boot_memmap map;
status = efi_get_memory_map(sys_table_arg, &memory_map, &map_size,
&desc_size, NULL, NULL);
map.map = &memory_map;
map.map_size = &map_size;
map.desc_size = &desc_size;
map.desc_ver = NULL;
map.key_ptr = NULL;
map.buff_size = &buff_size;
status = efi_get_memory_map(sys_table_arg, &map);
if (status != EFI_SUCCESS)
return status;

2
drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_crtc.c
View File

@ -387,7 +387,7 @@ void atmel_hlcdc_crtc_irq(struct drm_crtc *c)
atmel_hlcdc_crtc_finish_page_flip(drm_crtc_to_atmel_hlcdc_crtc(c));
}
void atmel_hlcdc_crtc_reset(struct drm_crtc *crtc)
static void atmel_hlcdc_crtc_reset(struct drm_crtc *crtc)
{
struct atmel_hlcdc_crtc_state *state;

10
drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_plane.c
View File

@ -320,19 +320,19 @@ atmel_hlcdc_plane_update_pos_and_size(struct atmel_hlcdc_plane *plane,
u32 *coeff_tab = heo_upscaling_ycoef;
u32 max_memsize;
if (state->crtc_w < state->src_w)
if (state->crtc_h < state->src_h)
coeff_tab = heo_downscaling_ycoef;
for (i = 0; i < ARRAY_SIZE(heo_upscaling_ycoef); i++)
atmel_hlcdc_layer_update_cfg(&plane->layer,
33 + i,
0xffffffff,
coeff_tab[i]);
factor = ((8 * 256 * state->src_w) - (256 * 4)) /
state->crtc_w;
factor = ((8 * 256 * state->src_h) - (256 * 4)) /
state->crtc_h;
factor++;
max_memsize = ((factor * state->crtc_w) + (256 * 4)) /
max_memsize = ((factor * state->crtc_h) + (256 * 4)) /
2048;
if (max_memsize > state->src_w)
if (max_memsize > state->src_h)
factor--;
factor_reg |= (factor << 16) | 0x80000000;
}

5
drivers/gpu/drm/i915/i915_drv.c
View File

@ -1281,6 +1281,11 @@ int i915_driver_load(struct pci_dev *pdev, const struct pci_device_id *ent)
intel_runtime_pm_enable(dev_priv);
/* Everything is in place, we can now relax! */
DRM_INFO("Initialized %s %d.%d.%d %s for %s on minor %d\n",
driver.name, driver.major, driver.minor, driver.patchlevel,
driver.date, pci_name(pdev), dev_priv->drm.primary->index);
intel_runtime_pm_put(dev_priv);
return 0;

9
drivers/gpu/drm/i915/i915_gem_gtt.c
View File

@ -122,8 +122,11 @@ int intel_sanitize_enable_ppgtt(struct drm_i915_private *dev_priv,
has_full_48bit_ppgtt =
IS_BROADWELL(dev_priv) || INTEL_GEN(dev_priv) >= 9;
if (intel_vgpu_active(dev_priv))
has_full_ppgtt = false; /* emulation is too hard */
if (intel_vgpu_active(dev_priv)) {
/* emulation is too hard */
has_full_ppgtt = false;
has_full_48bit_ppgtt = false;
}
if (!has_aliasing_ppgtt)
return 0;
@ -158,7 +161,7 @@ int intel_sanitize_enable_ppgtt(struct drm_i915_private *dev_priv,
return 0;
}
if (INTEL_GEN(dev_priv) >= 8 && i915.enable_execlists)
if (INTEL_GEN(dev_priv) >= 8 && i915.enable_execlists && has_full_ppgtt)
return has_full_48bit_ppgtt ? 3 : 2;
else
return has_aliasing_ppgtt ? 1 : 0;

3
drivers/gpu/drm/i915/i915_vgpu.c
View File

@ -65,9 +65,6 @@ void i915_check_vgpu(struct drm_i915_private *dev_priv)
BUILD_BUG_ON(sizeof(struct vgt_if) != VGT_PVINFO_SIZE);
if (!IS_HASWELL(dev_priv))
return;
magic = __raw_i915_read64(dev_priv, vgtif_reg(magic));
if (magic != VGT_MAGIC)
return;

1
drivers/gpu/drm/i915/intel_dvo.c
View File

@ -554,7 +554,6 @@ void intel_dvo_init(struct drm_device *dev)
return;
}
drm_encoder_cleanup(&intel_encoder->base);
kfree(intel_dvo);
kfree(intel_connector);
}

27
drivers/gpu/drm/i915/intel_opregion.c
View File

@ -1047,6 +1047,23 @@ err_out:
return err;
}
static int intel_use_opregion_panel_type_callback(const struct dmi_system_id *id)
{
DRM_INFO("Using panel type from OpRegion on %s\n", id->ident);
return 1;
}
static const struct dmi_system_id intel_use_opregion_panel_type[] = {
{
.callback = intel_use_opregion_panel_type_callback,
.ident = "Conrac GmbH IX45GM2",
.matches = {DMI_MATCH(DMI_SYS_VENDOR, "Conrac GmbH"),
DMI_MATCH(DMI_PRODUCT_NAME, "IX45GM2"),
},
},
{ }
};
int
intel_opregion_get_panel_type(struct drm_i915_private *dev_priv)
{
@ -1072,6 +1089,16 @@ intel_opregion_get_panel_type(struct drm_i915_private *dev_priv)
return -ENODEV;
}
/*
* So far we know that some machined must use it, others must not use it.
* There doesn't seem to be any way to determine which way to go, except
* via a quirk list :(
*/
if (!dmi_check_system(intel_use_opregion_panel_type)) {
DRM_DEBUG_KMS("Ignoring OpRegion panel type (%d)\n", ret - 1);
return -ENODEV;
}
/*
* FIXME On Dell XPS 13 9350 the OpRegion panel type (0) gives us
* low vswing for eDP, whereas the VBT panel type (2) gives us normal

1
drivers/gpu/drm/i915/intel_pm.c
View File

@ -7859,6 +7859,7 @@ static inline int gen6_check_mailbox_status(struct drm_i915_private *dev_priv)
case GEN6_PCODE_ILLEGAL_CMD:
return -ENXIO;
case GEN6_PCODE_MIN_FREQ_TABLE_GT_RATIO_OUT_OF_RANGE:
case GEN7_PCODE_MIN_FREQ_TABLE_GT_RATIO_OUT_OF_RANGE:
return -EOVERFLOW;
case GEN6_PCODE_TIMEOUT:
return -ETIMEDOUT;

Some files were not shown because too many files have changed in this diff Show More