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-rw-r--r--arch/arm64/boot/dts/altera/socfpga_stratix10_socdk.dts1
-rw-r--r--arch/arm64/boot/dts/hisilicon/hi3660.dtsi2
-rw-r--r--arch/arm64/boot/dts/rockchip/rk3399-gru.dtsi16
-rw-r--r--arch/arm64/boot/dts/rockchip/rk3399.dtsi8
-rw-r--r--arch/arm64/include/asm/efi.h4
-rw-r--r--arch/arm64/kernel/Makefile3
-rw-r--r--arch/arm64/kernel/efi-rt-wrapper.S41
-rw-r--r--arch/arm64/kernel/efi.c6
-rw-r--r--arch/arm64/kernel/sys.c2
-rw-r--r--arch/arm64/mm/mmu.c10
10 files changed, 70 insertions, 23 deletions
diff --git a/arch/arm64/boot/dts/altera/socfpga_stratix10_socdk.dts b/arch/arm64/boot/dts/altera/socfpga_stratix10_socdk.dts
index 000756429b77..51ce5832ee1d 100644
--- a/arch/arm64/boot/dts/altera/socfpga_stratix10_socdk.dts
+++ b/arch/arm64/boot/dts/altera/socfpga_stratix10_socdk.dts
@@ -88,7 +88,6 @@
&mmc {
status = "okay";
- num-slots = <1>;
cap-sd-highspeed;
broken-cd;
bus-width = <4>;
diff --git a/arch/arm64/boot/dts/hisilicon/hi3660.dtsi b/arch/arm64/boot/dts/hisilicon/hi3660.dtsi
index 63d4f9dca77f..a7ecd9074ea2 100644
--- a/arch/arm64/boot/dts/hisilicon/hi3660.dtsi
+++ b/arch/arm64/boot/dts/hisilicon/hi3660.dtsi
@@ -922,7 +922,6 @@
#size-cells = <0>;
cd-inverted;
compatible = "hisilicon,hi3660-dw-mshc";
- num-slots = <1>;
bus-width = <0x4>;
disable-wp;
cap-sd-highspeed;
@@ -960,7 +959,6 @@
compatible = "hisilicon,hi3660-dw-mshc";
reg = <0x0 0xff3ff000 0x0 0x1000>;
interrupts = <GIC_SPI 140 IRQ_TYPE_LEVEL_HIGH>;
- num-slots = <1>;
clocks = <&crg_ctrl HI3660_CLK_GATE_SDIO0>,
<&crg_ctrl HI3660_HCLK_GATE_SDIO0>;
clock-names = "ciu", "biu";
diff --git a/arch/arm64/boot/dts/rockchip/rk3399-gru.dtsi b/arch/arm64/boot/dts/rockchip/rk3399-gru.dtsi
index 03f195025390..204bdb9857b9 100644
--- a/arch/arm64/boot/dts/rockchip/rk3399-gru.dtsi
+++ b/arch/arm64/boot/dts/rockchip/rk3399-gru.dtsi
@@ -406,8 +406,9 @@
wlan_pd_n: wlan-pd-n {
compatible = "regulator-fixed";
regulator-name = "wlan_pd_n";
+ pinctrl-names = "default";
+ pinctrl-0 = <&wlan_module_reset_l>;
- /* Note the wlan_module_reset_l pinctrl */
enable-active-high;
gpio = <&gpio1 11 GPIO_ACTIVE_HIGH>;
@@ -983,12 +984,6 @@ ap_i2c_audio: &i2c8 {
pinctrl-0 = <
&ap_pwroff /* AP will auto-assert this when in S3 */
&clk_32k /* This pin is always 32k on gru boards */
-
- /*
- * We want this driven low ASAP; firmware should help us, but
- * we can help ourselves too.
- */
- &wlan_module_reset_l
>;
pcfg_output_low: pcfg-output-low {
@@ -1168,12 +1163,7 @@ ap_i2c_audio: &i2c8 {
};
wlan_module_reset_l: wlan-module-reset-l {
- /*
- * We want this driven low ASAP (As {Soon,Strongly} As
- * Possible), to avoid leakage through the powered-down
- * WiFi.
- */
- rockchip,pins = <1 11 RK_FUNC_GPIO &pcfg_output_low>;
+ rockchip,pins = <1 11 RK_FUNC_GPIO &pcfg_pull_none>;
};
bt_host_wake_l: bt-host-wake-l {
diff --git a/arch/arm64/boot/dts/rockchip/rk3399.dtsi b/arch/arm64/boot/dts/rockchip/rk3399.dtsi
index 2605118d4b4c..0b81ca1d07e7 100644
--- a/arch/arm64/boot/dts/rockchip/rk3399.dtsi
+++ b/arch/arm64/boot/dts/rockchip/rk3399.dtsi
@@ -411,8 +411,8 @@
reg = <0x0 0xfe800000 0x0 0x100000>;
interrupts = <GIC_SPI 105 IRQ_TYPE_LEVEL_HIGH 0>;
dr_mode = "otg";
- phys = <&u2phy0_otg>, <&tcphy0_usb3>;
- phy-names = "usb2-phy", "usb3-phy";
+ phys = <&u2phy0_otg>;
+ phy-names = "usb2-phy";
phy_type = "utmi_wide";
snps,dis_enblslpm_quirk;
snps,dis-u2-freeclk-exists-quirk;
@@ -444,8 +444,8 @@
reg = <0x0 0xfe900000 0x0 0x100000>;
interrupts = <GIC_SPI 110 IRQ_TYPE_LEVEL_HIGH 0>;
dr_mode = "otg";
- phys = <&u2phy1_otg>, <&tcphy1_usb3>;
- phy-names = "usb2-phy", "usb3-phy";
+ phys = <&u2phy1_otg>;
+ phy-names = "usb2-phy";
phy_type = "utmi_wide";
snps,dis_enblslpm_quirk;
snps,dis-u2-freeclk-exists-quirk;
diff --git a/arch/arm64/include/asm/efi.h b/arch/arm64/include/asm/efi.h
index 8389050328bb..192d791f1103 100644
--- a/arch/arm64/include/asm/efi.h
+++ b/arch/arm64/include/asm/efi.h
@@ -31,7 +31,7 @@ int efi_set_mapping_permissions(struct mm_struct *mm, efi_memory_desc_t *md);
({ \
efi_##f##_t *__f; \
__f = p->f; \
- __f(args); \
+ __efi_rt_asm_wrapper(__f, #f, args); \
})
#define arch_efi_call_virt_teardown() \
@@ -40,6 +40,8 @@ int efi_set_mapping_permissions(struct mm_struct *mm, efi_memory_desc_t *md);
efi_virtmap_unload(); \
})
+efi_status_t __efi_rt_asm_wrapper(void *, const char *, ...);
+
#define ARCH_EFI_IRQ_FLAGS_MASK (PSR_D_BIT | PSR_A_BIT | PSR_I_BIT | PSR_F_BIT)
/* arch specific definitions used by the stub code */
diff --git a/arch/arm64/kernel/Makefile b/arch/arm64/kernel/Makefile
index b87541360f43..6a4bd80c75bd 100644
--- a/arch/arm64/kernel/Makefile
+++ b/arch/arm64/kernel/Makefile
@@ -38,7 +38,8 @@ arm64-obj-$(CONFIG_CPU_PM) += sleep.o suspend.o
arm64-obj-$(CONFIG_CPU_IDLE) += cpuidle.o
arm64-obj-$(CONFIG_JUMP_LABEL) += jump_label.o
arm64-obj-$(CONFIG_KGDB) += kgdb.o
-arm64-obj-$(CONFIG_EFI) += efi.o efi-entry.stub.o
+arm64-obj-$(CONFIG_EFI) += efi.o efi-entry.stub.o \
+ efi-rt-wrapper.o
arm64-obj-$(CONFIG_PCI) += pci.o
arm64-obj-$(CONFIG_ARMV8_DEPRECATED) += armv8_deprecated.o
arm64-obj-$(CONFIG_ACPI) += acpi.o
diff --git a/arch/arm64/kernel/efi-rt-wrapper.S b/arch/arm64/kernel/efi-rt-wrapper.S
new file mode 100644
index 000000000000..05235ebb336d
--- /dev/null
+++ b/arch/arm64/kernel/efi-rt-wrapper.S
@@ -0,0 +1,41 @@
+/*
+ * Copyright (C) 2018 Linaro Ltd <ard.biesheuvel@linaro.org>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/linkage.h>
+
+ENTRY(__efi_rt_asm_wrapper)
+ stp x29, x30, [sp, #-32]!
+ mov x29, sp
+
+ /*
+ * Register x18 is designated as the 'platform' register by the AAPCS,
+ * which means firmware running at the same exception level as the OS
+ * (such as UEFI) should never touch it.
+ */
+ stp x1, x18, [sp, #16]
+
+ /*
+ * We are lucky enough that no EFI runtime services take more than
+ * 5 arguments, so all are passed in registers rather than via the
+ * stack.
+ */
+ mov x8, x0
+ mov x0, x2
+ mov x1, x3
+ mov x2, x4
+ mov x3, x5
+ mov x4, x6
+ blr x8
+
+ ldp x1, x2, [sp, #16]
+ cmp x2, x18
+ ldp x29, x30, [sp], #32
+ b.ne 0f
+ ret
+0: b efi_handle_corrupted_x18 // tail call
+ENDPROC(__efi_rt_asm_wrapper)
diff --git a/arch/arm64/kernel/efi.c b/arch/arm64/kernel/efi.c
index a8bf1c892b90..4f9acb5fbe97 100644
--- a/arch/arm64/kernel/efi.c
+++ b/arch/arm64/kernel/efi.c
@@ -126,3 +126,9 @@ bool efi_poweroff_required(void)
{
return efi_enabled(EFI_RUNTIME_SERVICES);
}
+
+asmlinkage efi_status_t efi_handle_corrupted_x18(efi_status_t s, const char *f)
+{
+ pr_err_ratelimited(FW_BUG "register x18 corrupted by EFI %s\n", f);
+ return s;
+}
diff --git a/arch/arm64/kernel/sys.c b/arch/arm64/kernel/sys.c
index 26fe8ea93ea2..72981bae10eb 100644
--- a/arch/arm64/kernel/sys.c
+++ b/arch/arm64/kernel/sys.c
@@ -34,7 +34,7 @@ asmlinkage long sys_mmap(unsigned long addr, unsigned long len,
if (offset_in_page(off) != 0)
return -EINVAL;
- return sys_mmap_pgoff(addr, len, prot, flags, fd, off >> PAGE_SHIFT);
+ return ksys_mmap_pgoff(addr, len, prot, flags, fd, off >> PAGE_SHIFT);
}
SYSCALL_DEFINE1(arm64_personality, unsigned int, personality)
diff --git a/arch/arm64/mm/mmu.c b/arch/arm64/mm/mmu.c
index 8c704f1e53c2..2dbb2c9f1ec1 100644
--- a/arch/arm64/mm/mmu.c
+++ b/arch/arm64/mm/mmu.c
@@ -972,3 +972,13 @@ int pmd_clear_huge(pmd_t *pmdp)
pmd_clear(pmdp);
return 1;
}
+
+int pud_free_pmd_page(pud_t *pud)
+{
+ return pud_none(*pud);
+}
+
+int pmd_free_pte_page(pmd_t *pmd)
+{
+ return pmd_none(*pmd);
+}
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