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-rw-r--r--arch/loongarch/Kbuild1
-rw-r--r--arch/loongarch/Kconfig22
-rw-r--r--arch/loongarch/Makefile6
-rw-r--r--arch/loongarch/boot/dts/Makefile5
-rw-r--r--arch/loongarch/boot/dts/loongson-2k0500-ref.dts88
-rw-r--r--arch/loongarch/boot/dts/loongson-2k0500.dtsi266
-rw-r--r--arch/loongarch/boot/dts/loongson-2k1000-ref.dts183
-rw-r--r--arch/loongarch/boot/dts/loongson-2k1000.dtsi492
-rw-r--r--arch/loongarch/boot/dts/loongson-2k2000-ref.dts72
-rw-r--r--arch/loongarch/boot/dts/loongson-2k2000.dtsi300
-rw-r--r--arch/loongarch/configs/loongson3_defconfig55
-rw-r--r--arch/loongarch/include/asm/bootinfo.h6
-rw-r--r--arch/loongarch/include/asm/crash_core.h12
-rw-r--r--arch/loongarch/include/asm/elf.h5
-rw-r--r--arch/loongarch/include/asm/ftrace.h2
-rw-r--r--arch/loongarch/include/asm/shmparam.h12
-rw-r--r--arch/loongarch/kernel/acpi.c2
-rw-r--r--arch/loongarch/kernel/efi.c2
-rw-r--r--arch/loongarch/kernel/elf.c5
-rw-r--r--arch/loongarch/kernel/env.c34
-rw-r--r--arch/loongarch/kernel/head.S10
-rw-r--r--arch/loongarch/kernel/process.c1
-rw-r--r--arch/loongarch/kernel/setup.c56
-rw-r--r--arch/loongarch/kernel/smp.c5
-rw-r--r--arch/loongarch/net/bpf_jit.c10
25 files changed, 1575 insertions, 77 deletions
diff --git a/arch/loongarch/Kbuild b/arch/loongarch/Kbuild
index beb8499dd8ed..bfa21465d83a 100644
--- a/arch/loongarch/Kbuild
+++ b/arch/loongarch/Kbuild
@@ -4,6 +4,7 @@ obj-y += net/
obj-y += vdso/
obj-$(CONFIG_KVM) += kvm/
+obj-$(CONFIG_BUILTIN_DTB) += boot/dts/
# for cleaning
subdir- += boot
diff --git a/arch/loongarch/Kconfig b/arch/loongarch/Kconfig
index 15d05dd2b7f3..10959e6c3583 100644
--- a/arch/loongarch/Kconfig
+++ b/arch/loongarch/Kconfig
@@ -142,6 +142,7 @@ config LOONGARCH
select HAVE_REGS_AND_STACK_ACCESS_API
select HAVE_RETHOOK
select HAVE_RSEQ
+ select HAVE_RUST
select HAVE_SAMPLE_FTRACE_DIRECT
select HAVE_SAMPLE_FTRACE_DIRECT_MULTI
select HAVE_SETUP_PER_CPU_AREA if NUMA
@@ -376,6 +377,24 @@ config CMDLINE_FORCE
endchoice
+config BUILTIN_DTB
+ bool "Enable built-in dtb in kernel"
+ depends on OF
+ help
+ Some existing systems do not provide a canonical device tree to
+ the kernel at boot time. Let's provide a device tree table in the
+ kernel, keyed by the dts filename, containing the relevant DTBs.
+
+ Built-in DTBs are generic enough and can be used as references.
+
+config BUILTIN_DTB_NAME
+ string "Source file for built-in dtb"
+ depends on BUILTIN_DTB
+ help
+ Base name (without suffix, relative to arch/loongarch/boot/dts/)
+ for the DTS file that will be used to produce the DTB linked into
+ the kernel.
+
config DMI
bool "Enable DMI scanning"
select DMI_SCAN_MACHINE_NON_EFI_FALLBACK
@@ -577,6 +596,9 @@ config ARCH_SELECTS_CRASH_DUMP
depends on CRASH_DUMP
select RELOCATABLE
+config ARCH_HAS_GENERIC_CRASHKERNEL_RESERVATION
+ def_bool CRASH_CORE
+
config RELOCATABLE
bool "Relocatable kernel"
help
diff --git a/arch/loongarch/Makefile b/arch/loongarch/Makefile
index 4ba8d67ddb09..983aa2b1629a 100644
--- a/arch/loongarch/Makefile
+++ b/arch/loongarch/Makefile
@@ -6,6 +6,7 @@
boot := arch/loongarch/boot
KBUILD_DEFCONFIG := loongson3_defconfig
+KBUILD_DTBS := dtbs
image-name-y := vmlinux
image-name-$(CONFIG_EFI_ZBOOT) := vmlinuz
@@ -81,8 +82,11 @@ KBUILD_AFLAGS_MODULE += -Wa,-mla-global-with-abs
KBUILD_CFLAGS_MODULE += -fplt -Wa,-mla-global-with-abs,-mla-local-with-abs
endif
+KBUILD_RUSTFLAGS_MODULE += -Crelocation-model=pic
+
ifeq ($(CONFIG_RELOCATABLE),y)
KBUILD_CFLAGS_KERNEL += -fPIE
+KBUILD_RUSTFLAGS_KERNEL += -Crelocation-model=pie
LDFLAGS_vmlinux += -static -pie --no-dynamic-linker -z notext $(call ld-option, --apply-dynamic-relocs)
endif
@@ -141,7 +145,7 @@ endif
vdso-install-y += arch/loongarch/vdso/vdso.so.dbg
-all: $(notdir $(KBUILD_IMAGE))
+all: $(notdir $(KBUILD_IMAGE)) $(KBUILD_DTBS)
vmlinuz.efi: vmlinux.efi
diff --git a/arch/loongarch/boot/dts/Makefile b/arch/loongarch/boot/dts/Makefile
index 5f1f55e911ad..747d0c3f6389 100644
--- a/arch/loongarch/boot/dts/Makefile
+++ b/arch/loongarch/boot/dts/Makefile
@@ -1,4 +1,5 @@
# SPDX-License-Identifier: GPL-2.0-only
-dtstree := $(srctree)/$(src)
-dtb-y := $(patsubst $(dtstree)/%.dts,%.dtb, $(wildcard $(dtstree)/*.dts))
+dtb-y = loongson-2k0500-ref.dtb loongson-2k1000-ref.dtb loongson-2k2000-ref.dtb
+
+obj-$(CONFIG_BUILTIN_DTB) += $(addsuffix .dtb.o, $(CONFIG_BUILTIN_DTB_NAME))
diff --git a/arch/loongarch/boot/dts/loongson-2k0500-ref.dts b/arch/loongarch/boot/dts/loongson-2k0500-ref.dts
new file mode 100644
index 000000000000..b38071a4d0b0
--- /dev/null
+++ b/arch/loongarch/boot/dts/loongson-2k0500-ref.dts
@@ -0,0 +1,88 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (C) 2023 Loongson Technology Corporation Limited
+ */
+
+/dts-v1/;
+
+#include "loongson-2k0500.dtsi"
+
+/ {
+ compatible = "loongson,ls2k0500-ref", "loongson,ls2k0500";
+ model = "Loongson-2K0500 Reference Board";
+
+ aliases {
+ ethernet0 = &gmac0;
+ ethernet1 = &gmac1;
+ serial0 = &uart0;
+ };
+
+ chosen {
+ stdout-path = "serial0:115200n8";
+ };
+
+ memory@200000 {
+ device_type = "memory";
+ reg = <0x0 0x00200000 0x0 0x0ee00000>,
+ <0x0 0x90000000 0x0 0x60000000>;
+ };
+
+ reserved-memory {
+ #address-cells = <2>;
+ #size-cells = <2>;
+ ranges;
+
+ linux,cma {
+ compatible = "shared-dma-pool";
+ reusable;
+ size = <0x0 0x2000000>;
+ linux,cma-default;
+ };
+ };
+};
+
+&gmac0 {
+ status = "okay";
+
+ phy-mode = "rgmii";
+ bus_id = <0x0>;
+};
+
+&gmac1 {
+ status = "okay";
+
+ phy-mode = "rgmii";
+ bus_id = <0x1>;
+};
+
+&i2c0 {
+ status = "okay";
+
+ #address-cells = <1>;
+ #size-cells = <0>;
+ eeprom@57{
+ compatible = "atmel,24c16";
+ reg = <0x57>;
+ pagesize = <16>;
+ };
+};
+
+&ehci0 {
+ status = "okay";
+};
+
+&ohci0 {
+ status = "okay";
+};
+
+&sata {
+ status = "okay";
+};
+
+&uart0 {
+ status = "okay";
+};
+
+&rtc0 {
+ status = "okay";
+};
diff --git a/arch/loongarch/boot/dts/loongson-2k0500.dtsi b/arch/loongarch/boot/dts/loongson-2k0500.dtsi
new file mode 100644
index 000000000000..444779c21034
--- /dev/null
+++ b/arch/loongarch/boot/dts/loongson-2k0500.dtsi
@@ -0,0 +1,266 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (C) 2023 Loongson Technology Corporation Limited
+ */
+
+/dts-v1/;
+
+#include <dt-bindings/interrupt-controller/irq.h>
+
+/ {
+ #address-cells = <2>;
+ #size-cells = <2>;
+
+ cpus {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ cpu0: cpu@0 {
+ compatible = "loongson,la264";
+ device_type = "cpu";
+ reg = <0x0>;
+ clocks = <&cpu_clk>;
+ };
+ };
+
+ cpu_clk: cpu-clk {
+ compatible = "fixed-clock";
+ #clock-cells = <0>;
+ clock-frequency = <500000000>;
+ };
+
+ cpuintc: interrupt-controller {
+ compatible = "loongson,cpu-interrupt-controller";
+ #interrupt-cells = <1>;
+ interrupt-controller;
+ };
+
+ bus@10000000 {
+ compatible = "simple-bus";
+ ranges = <0x0 0x10000000 0x0 0x10000000 0x0 0x10000000>,
+ <0x0 0x02000000 0x0 0x02000000 0x0 0x02000000>,
+ <0x0 0x20000000 0x0 0x20000000 0x0 0x10000000>,
+ <0x0 0x40000000 0x0 0x40000000 0x0 0x40000000>,
+ <0xfe 0x0 0xfe 0x0 0x0 0x40000000>;
+ #address-cells = <2>;
+ #size-cells = <2>;
+
+ isa@16400000 {
+ compatible = "isa";
+ #size-cells = <1>;
+ #address-cells = <2>;
+ ranges = <1 0x0 0x0 0x16400000 0x4000>;
+ };
+
+ liointc0: interrupt-controller@1fe11400 {
+ compatible = "loongson,liointc-2.0";
+ reg = <0x0 0x1fe11400 0x0 0x40>,
+ <0x0 0x1fe11040 0x0 0x8>;
+ reg-names = "main", "isr0";
+
+ interrupt-controller;
+ #interrupt-cells = <2>;
+ interrupt-parent = <&cpuintc>;
+ interrupts = <2>;
+ interrupt-names = "int0";
+
+ loongson,parent_int_map = <0xffffffff>, /* int0 */
+ <0x00000000>, /* int1 */
+ <0x00000000>, /* int2 */
+ <0x00000000>; /* int3 */
+ };
+
+ liointc1: interrupt-controller@1fe11440 {
+ compatible = "loongson,liointc-2.0";
+ reg = <0x0 0x1fe11440 0x0 0x40>,
+ <0x0 0x1fe11048 0x0 0x8>;
+ reg-names = "main", "isr0";
+
+ interrupt-controller;
+ #interrupt-cells = <2>;
+ interrupt-parent = <&cpuintc>;
+ interrupts = <4>;
+ interrupt-names = "int2";
+
+ loongson,parent_int_map = <0x00000000>, /* int0 */
+ <0x00000000>, /* int1 */
+ <0xffffffff>, /* int2 */
+ <0x00000000>; /* int3 */
+ };
+
+ eiointc: interrupt-controller@1fe11600 {
+ compatible = "loongson,ls2k0500-eiointc";
+ reg = <0x0 0x1fe11600 0x0 0xea00>;
+ interrupt-controller;
+ #interrupt-cells = <1>;
+ interrupt-parent = <&cpuintc>;
+ interrupts = <3>;
+ };
+
+ gmac0: ethernet@1f020000 {
+ compatible = "snps,dwmac-3.70a";
+ reg = <0x0 0x1f020000 0x0 0x10000>;
+ interrupt-parent = <&liointc0>;
+ interrupts = <12 IRQ_TYPE_LEVEL_HIGH>;
+ interrupt-names = "macirq";
+ status = "disabled";
+ };
+
+ gmac1: ethernet@1f030000 {
+ compatible = "snps,dwmac-3.70a";
+ reg = <0x0 0x1f030000 0x0 0x10000>;
+ interrupt-parent = <&liointc0>;
+ interrupts = <14 IRQ_TYPE_LEVEL_HIGH>;
+ interrupt-names = "macirq";
+ status = "disabled";
+ };
+
+ sata: sata@1f040000 {
+ compatible = "snps,spear-ahci";
+ reg = <0x0 0x1f040000 0x0 0x10000>;
+ interrupt-parent = <&eiointc>;
+ interrupts = <75>;
+ status = "disabled";
+ };
+
+ ehci0: usb@1f050000 {
+ compatible = "generic-ehci";
+ reg = <0x0 0x1f050000 0x0 0x8000>;
+ interrupt-parent = <&eiointc>;
+ interrupts = <71>;
+ status = "disabled";
+ };
+
+ ohci0: usb@1f058000 {
+ compatible = "generic-ohci";
+ reg = <0x0 0x1f058000 0x0 0x8000>;
+ interrupt-parent = <&eiointc>;
+ interrupts = <72>;
+ status = "disabled";
+ };
+
+ uart0: serial@1ff40800 {
+ compatible = "ns16550a";
+ reg = <0x0 0x1ff40800 0x0 0x10>;
+ clock-frequency = <100000000>;
+ interrupt-parent = <&eiointc>;
+ interrupts = <2>;
+ no-loopback-test;
+ status = "disabled";
+ };
+
+ i2c0: i2c@1ff48000 {
+ compatible = "loongson,ls2k-i2c";
+ reg = <0x0 0x1ff48000 0x0 0x0800>;
+ interrupt-parent = <&eiointc>;
+ interrupts = <14>;
+ status = "disabled";
+ };
+
+ i2c@1ff48800 {
+ compatible = "loongson,ls2k-i2c";
+ reg = <0x0 0x1ff48800 0x0 0x0800>;
+ interrupt-parent = <&eiointc>;
+ interrupts = <15>;
+ status = "disabled";
+ };
+
+ i2c@1ff49000 {
+ compatible = "loongson,ls2k-i2c";
+ reg = <0x0 0x1ff49000 0x0 0x0800>;
+ interrupt-parent = <&eiointc>;
+ interrupts = <16>;
+ status = "disabled";
+ };
+
+ i2c@1ff49800 {
+ compatible = "loongson,ls2k-i2c";
+ reg = <0x0 0x1ff49800 0x0 0x0800>;
+ interrupt-parent = <&eiointc>;
+ interrupts = <17>;
+ status = "disabled";
+ };
+
+ i2c@1ff4a000 {
+ compatible = "loongson,ls2k-i2c";
+ reg = <0x0 0x1ff4a000 0x0 0x0800>;
+ interrupt-parent = <&eiointc>;
+ interrupts = <18>;
+ status = "disabled";
+ };
+
+ i2c@1ff4a800 {
+ compatible = "loongson,ls2k-i2c";
+ reg = <0x0 0x1ff4a800 0x0 0x0800>;
+ interrupt-parent = <&eiointc>;
+ interrupts = <19>;
+ status = "disabled";
+ };
+
+ pmc: power-management@1ff6c000 {
+ compatible = "loongson,ls2k0500-pmc", "syscon";
+ reg = <0x0 0x1ff6c000 0x0 0x58>;
+ interrupt-parent = <&eiointc>;
+ interrupts = <56>;
+ loongson,suspend-address = <0x0 0x1c000500>;
+
+ syscon-reboot {
+ compatible = "syscon-reboot";
+ offset = <0x30>;
+ mask = <0x1>;
+ };
+
+ syscon-poweroff {
+ compatible = "syscon-poweroff";
+ regmap = <&pmc>;
+ offset = <0x14>;
+ mask = <0x3c00>;
+ value = <0x3c00>;
+ };
+ };
+
+ rtc0: rtc@1ff6c100 {
+ compatible = "loongson,ls2k0500-rtc", "loongson,ls7a-rtc";
+ reg = <0x0 0x1ff6c100 0x0 0x100>;
+ interrupt-parent = <&eiointc>;
+ interrupts = <35>;
+ status = "disabled";
+ };
+
+ pcie@1a000000 {
+ compatible = "loongson,ls2k-pci";
+ reg = <0x0 0x1a000000 0x0 0x02000000>,
+ <0xfe 0x0 0x0 0x20000000>;
+ #address-cells = <3>;
+ #size-cells = <2>;
+ device_type = "pci";
+ bus-range = <0x0 0x5>;
+ ranges = <0x01000000 0x0 0x00004000 0x0 0x16404000 0x0 0x00004000>,
+ <0x02000000 0x0 0x40000000 0x0 0x40000000 0x0 0x40000000>;
+
+ pcie@0,0 {
+ reg = <0x0000 0x0 0x0 0x0 0x0>;
+ #address-cells = <3>;
+ #size-cells = <2>;
+ device_type = "pci";
+ interrupt-parent = <&eiointc>;
+ #interrupt-cells = <1>;
+ interrupt-map-mask = <0x0 0x0 0x0 0x0>;
+ interrupt-map = <0x0 0x0 0x0 0x0 &eiointc 81>;
+ ranges;
+ };
+
+ pcie@1,0 {
+ reg = <0x0800 0x0 0x0 0x0 0x0>;
+ #address-cells = <3>;
+ #size-cells = <2>;
+ device_type = "pci";
+ interrupt-parent = <&eiointc>;
+ #interrupt-cells = <1>;
+ interrupt-map-mask = <0x0 0x0 0x0 0x0>;
+ interrupt-map = <0x0 0x0 0x0 0x0 &eiointc 82>;
+ ranges;
+ };
+ };
+ };
+};
diff --git a/arch/loongarch/boot/dts/loongson-2k1000-ref.dts b/arch/loongarch/boot/dts/loongson-2k1000-ref.dts
new file mode 100644
index 000000000000..132a2d1ea8bc
--- /dev/null
+++ b/arch/loongarch/boot/dts/loongson-2k1000-ref.dts
@@ -0,0 +1,183 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (C) 2023 Loongson Technology Corporation Limited
+ */
+
+/dts-v1/;
+
+#include "loongson-2k1000.dtsi"
+
+/ {
+ compatible = "loongson,ls2k1000-ref", "loongson,ls2k1000";
+ model = "Loongson-2K1000 Reference Board";
+
+ aliases {
+ serial0 = &uart0;
+ };
+
+ chosen {
+ stdout-path = "serial0:115200n8";
+ };
+
+ memory@200000 {
+ device_type = "memory";
+ reg = <0x0 0x00200000 0x0 0x06e00000>,
+ <0x0 0x08000000 0x0 0x07000000>,
+ <0x0 0x90000000 0x1 0xe0000000>;
+ };
+
+ reserved-memory {
+ #address-cells = <2>;
+ #size-cells = <2>;
+ ranges;
+
+ linux,cma {
+ compatible = "shared-dma-pool";
+ reusable;
+ size = <0x0 0x2000000>;
+ linux,cma-default;
+ };
+ };
+};
+
+&gmac0 {
+ status = "okay";
+
+ phy-mode = "rgmii";
+ phy-handle = <&phy0>;
+ mdio {
+ compatible = "snps,dwmac-mdio";
+ #address-cells = <1>;
+ #size-cells = <0>;
+ phy0: ethernet-phy@0 {
+ reg = <0>;
+ };
+ };
+};
+
+&gmac1 {
+ status = "okay";
+
+ phy-mode = "rgmii";
+ phy-handle = <&phy1>;
+ mdio {
+ compatible = "snps,dwmac-mdio";
+ #address-cells = <1>;
+ #size-cells = <0>;
+ phy1: ethernet-phy@1 {
+ reg = <16>;
+ };
+ };
+};
+
+&i2c2 {
+ status = "okay";
+
+ pinctrl-0 = <&i2c0_pins_default>;
+ pinctrl-names = "default";
+
+ #address-cells = <1>;
+ #size-cells = <0>;
+ eeprom@57{
+ compatible = "atmel,24c16";
+ reg = <0x57>;
+ pagesize = <16>;
+ };
+};
+
+&spi0 {
+ status = "okay";
+
+ #address-cells = <1>;
+ #size-cells = <0>;
+ spidev@0 {
+ compatible = "rohm,dh2228fv";
+ spi-max-frequency = <100000000>;
+ reg = <0>;
+ };
+};
+
+&ehci0 {
+ status = "okay";
+};
+
+&ohci0 {
+ status = "okay";
+};
+
+&sata {
+ status = "okay";
+};
+
+&uart0 {
+ status = "okay";
+};
+
+&clk {
+ status = "okay";
+};
+
+&rtc0 {
+ status = "okay";
+};
+
+&pctrl {
+ status = "okay";
+
+ sdio_pins_default: sdio-pins {
+ sdio-pinmux {
+ groups = "sdio";
+ function = "sdio";
+ };
+ sdio-det-pinmux {
+ groups = "pwm2";
+ function = "gpio";
+ };
+ };
+
+ pwm1_pins_default: pwm1-pins {
+ pinmux {
+ groups = "pwm1";
+ function = "pwm1";
+ };
+ };
+
+ pwm0_pins_default: pwm0-pins {
+ pinmux {
+ groups = "pwm0";
+ function = "pwm0";
+ };
+ };
+
+ i2c1_pins_default: i2c1-pins {
+ pinmux {
+ groups = "i2c1";
+ function = "i2c1";
+ };
+ };
+
+ i2c0_pins_default: i2c0-pins {
+ pinmux {
+ groups = "i2c0";
+ function = "i2c0";
+ };
+ };
+
+ nand_pins_default: nand-pins {
+ pinmux {
+ groups = "nand";
+ function = "nand";
+ };
+ };
+
+ hda_pins_default: hda-pins {
+ grp0-pinmux {
+ groups = "hda";
+ function = "hda";
+ };
+ grp1-pinmux {
+ groups = "i2s";
+ function = "gpio";
+ };
+ };
+};
diff --git a/arch/loongarch/boot/dts/loongson-2k1000.dtsi b/arch/loongarch/boot/dts/loongson-2k1000.dtsi
new file mode 100644
index 000000000000..49a70f8c3cab
--- /dev/null
+++ b/arch/loongarch/boot/dts/loongson-2k1000.dtsi
@@ -0,0 +1,492 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (C) 2023 Loongson Technology Corporation Limited
+ */
+
+/dts-v1/;
+
+#include <dt-bindings/interrupt-controller/irq.h>
+#include <dt-bindings/clock/loongson,ls2k-clk.h>
+#include <dt-bindings/gpio/gpio.h>
+
+/ {
+ #address-cells = <2>;
+ #size-cells = <2>;
+
+ cpus {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ cpu0: cpu@0 {
+ compatible = "loongson,la264";
+ device_type = "cpu";
+ reg= <0x0>;
+ clocks = <&clk LOONGSON2_NODE_CLK>;
+ };
+
+ cpu1: cpu@1 {
+ compatible = "loongson,la264";
+ device_type = "cpu";
+ reg = <0x1>;
+ clocks = <&clk LOONGSON2_NODE_CLK>;
+ };
+ };
+
+ ref_100m: clock-ref-100m {
+ compatible = "fixed-clock";
+ #clock-cells = <0>;
+ clock-frequency = <100000000>;
+ clock-output-names = "ref_100m";
+ };
+
+ cpuintc: interrupt-controller {
+ compatible = "loongson,cpu-interrupt-controller";
+ #interrupt-cells = <1>;
+ interrupt-controller;
+ };
+
+ /* i2c of the dvi eeprom edid */
+ i2c-gpio-0 {
+ compatible = "i2c-gpio";
+ scl-gpios = <&gpio0 0 (GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN)>;
+ sda-gpios = <&gpio0 1 (GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN)>;
+ i2c-gpio,delay-us = <5>; /* ~100 kHz */
+ #address-cells = <1>;
+ #size-cells = <0>;
+ status = "disabled";
+ };
+
+ /* i2c of the eeprom edid */
+ i2c-gpio-1 {
+ compatible = "i2c-gpio";
+ scl-gpios = <&gpio0 33 (GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN)>;
+ sda-gpios = <&gpio0 32 (GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN)>;
+ i2c-gpio,delay-us = <5>; /* ~100 kHz */
+ #address-cells = <1>;
+ #size-cells = <0>;
+ status = "disabled";
+ };
+
+ thermal-zones {
+ cpu-thermal {
+ polling-delay-passive = <1000>;
+ polling-delay = <5000>;
+ thermal-sensors = <&tsensor 0>;
+
+ trips {
+ cpu_alert: cpu-alert {
+ temperature = <33000>;
+ hysteresis = <2000>;
+ type = "active";
+ };
+
+ cpu_crit: cpu-crit {
+ temperature = <85000>;
+ hysteresis = <5000>;
+ type = "critical";
+ };
+ };
+ };
+ };
+
+ bus@10000000 {
+ compatible = "simple-bus";
+ ranges = <0x0 0x10000000 0x0 0x10000000 0x0 0x10000000>,
+ <0x0 0x02000000 0x0 0x02000000 0x0 0x02000000>,
+ <0x0 0x20000000 0x0 0x20000000 0x0 0x10000000>,
+ <0x0 0x40000000 0x0 0x40000000 0x0 0x40000000>,
+ <0xfe 0x0 0xfe 0x0 0x0 0x40000000>;
+ #address-cells = <2>;
+ #size-cells = <2>;
+ dma-coherent;
+
+ liointc0: interrupt-controller@1fe01400 {
+ compatible = "loongson,liointc-2.0";
+ reg = <0x0 0x1fe01400 0x0 0x40>,
+ <0x0 0x1fe01040 0x0 0x8>,
+ <0x0 0x1fe01140 0x0 0x8>;
+ reg-names = "main", "isr0", "isr1";
+ interrupt-controller;
+ #interrupt-cells = <2>;
+ interrupt-parent = <&cpuintc>;
+ interrupts = <2>;
+ interrupt-names = "int0";
+ loongson,parent_int_map = <0xffffffff>, /* int0 */
+ <0x00000000>, /* int1 */
+ <0x00000000>, /* int2 */
+ <0x00000000>; /* int3 */
+ };
+
+ liointc1: interrupt-controller@1fe01440 {
+ compatible = "loongson,liointc-2.0";
+ reg = <0x0 0x1fe01440 0x0 0x40>,
+ <0x0 0x1fe01048 0x0 0x8>,
+ <0x0 0x1fe01148 0x0 0x8>;
+ reg-names = "main", "isr0", "isr1";
+ interrupt-controller;
+ #interrupt-cells = <2>;
+ interrupt-parent = <&cpuintc>;
+ interrupts = <3>;
+ interrupt-names = "int1";
+ loongson,parent_int_map = <0x00000000>, /* int0 */
+ <0xffffffff>, /* int1 */
+ <0x00000000>, /* int2 */
+ <0x00000000>; /* int3 */
+ };
+
+ chipid@1fe00000 {
+ compatible = "loongson,ls2k-chipid";
+ reg = <0x0 0x1fe00000 0x0 0x30>;
+ little-endian;
+ };
+
+ pctrl: pinctrl@1fe00420 {
+ compatible = "loongson,ls2k-pinctrl";
+ reg = <0x0 0x1fe00420 0x0 0x18>;
+ status = "disabled";
+ };
+
+ clk: clock-controller@1fe00480 {
+ compatible = "loongson,ls2k-clk";
+ reg = <0x0 0x1fe00480 0x0 0x58>;
+ #clock-cells = <1>;
+ clocks = <&ref_100m>;
+ clock-names = "ref_100m";
+ status = "disabled";
+ };
+
+ gpio0: gpio@1fe00500 {
+ compatible = "loongson,ls2k-gpio";
+ reg = <0x0 0x1fe00500 0x0 0x38>;
+ ngpios = <64>;
+ #gpio-cells = <2>;
+ gpio-controller;
+ gpio-ranges = <&pctrl 0x0 0x0 15>,
+ <&pctrl 16 16 15>,
+ <&pctrl 32 32 10>,
+ <&pctrl 44 44 20>;
+ interrupt-parent = <&liointc1>;
+ interrupts = <28 IRQ_TYPE_LEVEL_HIGH>,
+ <29 IRQ_TYPE_LEVEL_HIGH>,
+ <30 IRQ_TYPE_LEVEL_HIGH>,
+ <30 IRQ_TYPE_LEVEL_HIGH>,
+ <26 IRQ_TYPE_LEVEL_HIGH>,
+ <26 IRQ_TYPE_LEVEL_HIGH>,
+ <26 IRQ_TYPE_LEVEL_HIGH>,
+ <26 IRQ_TYPE_LEVEL_HIGH>,
+ <26 IRQ_TYPE_LEVEL_HIGH>,
+ <26 IRQ_TYPE_LEVEL_HIGH>,
+ <26 IRQ_TYPE_LEVEL_HIGH>,
+ <26 IRQ_TYPE_LEVEL_HIGH>,
+ <26 IRQ_TYPE_LEVEL_HIGH>,
+ <26 IRQ_TYPE_LEVEL_HIGH>,
+ <26 IRQ_TYPE_LEVEL_HIGH>,
+ <>,
+ <26 IRQ_TYPE_LEVEL_HIGH>,
+ <26 IRQ_TYPE_LEVEL_HIGH>,
+ <26 IRQ_TYPE_LEVEL_HIGH>,
+ <26 IRQ_TYPE_LEVEL_HIGH>,
+ <26 IRQ_TYPE_LEVEL_HIGH>,
+ <26 IRQ_TYPE_LEVEL_HIGH>,
+ <26 IRQ_TYPE_LEVEL_HIGH>,
+ <26 IRQ_TYPE_LEVEL_HIGH>,
+ <26 IRQ_TYPE_LEVEL_HIGH>,
+ <26 IRQ_TYPE_LEVEL_HIGH>,
+ <26 IRQ_TYPE_LEVEL_HIGH>,
+ <26 IRQ_TYPE_LEVEL_HIGH>,
+ <26 IRQ_TYPE_LEVEL_HIGH>,
+ <26 IRQ_TYPE_LEVEL_HIGH>,
+ <26 IRQ_TYPE_LEVEL_HIGH>,
+ <26 IRQ_TYPE_LEVEL_HIGH>,
+ <27 IRQ_TYPE_LEVEL_HIGH>,
+ <27 IRQ_TYPE_LEVEL_HIGH>,
+ <27 IRQ_TYPE_LEVEL_HIGH>,
+ <27 IRQ_TYPE_LEVEL_HIGH>,
+ <27 IRQ_TYPE_LEVEL_HIGH>,
+ <>,
+ <27 IRQ_TYPE_LEVEL_HIGH>,
+ <27 IRQ_TYPE_LEVEL_HIGH>,
+ <27 IRQ_TYPE_LEVEL_HIGH>,
+ <27 IRQ_TYPE_LEVEL_HIGH>,
+ <>,
+ <>,
+ <27 IRQ_TYPE_LEVEL_HIGH>,
+ <27 IRQ_TYPE_LEVEL_HIGH>,
+ <27 IRQ_TYPE_LEVEL_HIGH>,
+ <27 IRQ_TYPE_LEVEL_HIGH>,
+ <27 IRQ_TYPE_LEVEL_HIGH>,
+ <27 IRQ_TYPE_LEVEL_HIGH>,
+ <27 IRQ_TYPE_LEVEL_HIGH>,
+ <27 IRQ_TYPE_LEVEL_HIGH>,
+ <27 IRQ_TYPE_LEVEL_HIGH>,
+ <27 IRQ_TYPE_LEVEL_HIGH>,
+ <27 IRQ_TYPE_LEVEL_HIGH>,
+ <27 IRQ_TYPE_LEVEL_HIGH>,
+ <27 IRQ_TYPE_LEVEL_HIGH>,
+ <27 IRQ_TYPE_LEVEL_HIGH>,
+ <27 IRQ_TYPE_LEVEL_HIGH>,
+ <27 IRQ_TYPE_LEVEL_HIGH>,
+ <27 IRQ_TYPE_LEVEL_HIGH>,
+ <27 IRQ_TYPE_LEVEL_HIGH>,
+ <27 IRQ_TYPE_LEVEL_HIGH>,
+ <27 IRQ_TYPE_LEVEL_HIGH>;
+ };
+
+ tsensor: thermal-sensor@1fe01500 {
+ compatible = "loongson,ls2k1000-thermal";
+ reg = <0x0 0x1fe01500 0x0 0x30>;
+ interrupt-parent = <&liointc0>;
+ interrupts = <7 IRQ_TYPE_LEVEL_HIGH>;
+ #thermal-sensor-cells = <1>;
+ };
+
+ dma-controller@1fe00c00 {
+ compatible = "loongson,ls2k1000-apbdma";
+ reg = <0x0 0x1fe00c00 0x0 0x8>;
+ interrupt-parent = <&liointc1>;
+ interrupts = <12 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&clk LOONGSON2_APB_CLK>;
+ #dma-cells = <1>;
+ status = "disabled";
+ };
+
+ dma-controller@1fe00c10 {
+ compatible = "loongson,ls2k1000-apbdma";
+ reg = <0x0 0x1fe00c10 0x0 0x8>;
+ interrupt-parent = <&liointc1>;
+ interrupts = <13 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&clk LOONGSON2_APB_CLK>;
+ #dma-cells = <1>;
+ status = "disabled";
+ };
+
+ dma-controller@1fe00c20 {
+ compatible = "loongson,ls2k1000-apbdma";
+ reg = <0x0 0x1fe00c20 0x0 0x8>;
+ interrupt-parent = <&liointc1>;
+ interrupts = <14 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&clk LOONGSON2_APB_CLK>;
+ #dma-cells = <1>;
+ status = "disabled";
+ };
+
+ dma-controller@1fe00c30 {
+ compatible = "loongson,ls2k1000-apbdma";
+ reg = <0x0 0x1fe00c30 0x0 0x8>;
+ interrupt-parent = <&liointc1>;
+ interrupts = <15 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&clk LOONGSON2_APB_CLK>;
+ #dma-cells = <1>;
+ status = "disabled";
+ };
+
+ dma-controller@1fe00c40 {
+ compatible = "loongson,ls2k1000-apbdma";
+ reg = <0x0 0x1fe00c40 0x0 0x8>;
+ interrupt-parent = <&liointc1>;
+ interrupts = <16 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&clk LOONGSON2_APB_CLK>;
+ #dma-cells = <1>;
+ status = "disabled";
+ };
+
+ uart0: serial@1fe20000 {
+ compatible = "ns16550a";
+ reg = <0x0 0x1fe20000 0x0 0x10>;
+ clock-frequency = <125000000>;
+ interrupt-parent = <&liointc0>;
+ interrupts = <0x0 IRQ_TYPE_LEVEL_HIGH>;
+ no-loopback-test;
+ status = "disabled";
+ };
+
+ i2c2: i2c@1fe21000 {
+ compatible = "loongson,ls2k-i2c";
+ reg = <0x0 0x1fe21000 0x0 0x8>;
+ interrupt-parent = <&liointc0>;
+ interrupts = <22 IRQ_TYPE_LEVEL_HIGH>;
+ status = "disabled";
+ };
+
+ i2c3: i2c@1fe21800 {
+ compatible = "loongson,ls2k-i2c";
+ reg = <0x0 0x1fe21800 0x0 0x8>;
+ interrupt-parent = <&liointc0>;
+ interrupts = <23 IRQ_TYPE_LEVEL_HIGH>;
+ status = "disabled";
+ };
+
+ pmc: power-management@1fe27000 {
+ compatible = "loongson,ls2k1000-pmc", "loongson,ls2k0500-pmc", "syscon";
+ reg = <0x0 0x1fe27000 0x0 0x58>;
+ interrupt-parent = <&liointc1>;
+ interrupts = <11 IRQ_TYPE_LEVEL_HIGH>;
+ loongson,suspend-address = <0x0 0x1c000500>;
+
+ syscon-reboot {
+ compatible = "syscon-reboot";
+ offset = <0x30>;
+ mask = <0x1>;
+ };
+
+ syscon-poweroff {
+ compatible = "syscon-poweroff";
+ regmap = <&pmc>;
+ offset = <0x14>;
+ mask = <0x3c00>;
+ value = <0x3c00>;
+ };
+ };
+
+ rtc0: rtc@1fe27800 {
+ compatible = "loongson,ls2k1000-rtc";
+ reg = <0x0 0x1fe27800 0x0 0x100>;
+ interrupt-parent = <&liointc1>;
+ interrupts = <8 IRQ_TYPE_LEVEL_HIGH>;
+ status = "disabled";
+ };
+
+ spi0: spi@1fff0220 {
+ compatible = "loongson,ls2k1000-spi";
+ reg = <0x0 0x1fff0220 0x0 0x10>;
+ clocks = <&clk LOONGSON2_BOOT_CLK>;
+ status = "disabled";
+ };
+
+ pcie@1a000000 {
+ compatible = "loongson,ls2k-pci";
+ reg = <0x0 0x1a000000 0x0 0x02000000>,
+ <0xfe 0x0 0x0 0x20000000>;
+ #address-cells = <3>;
+ #size-cells = <2>;
+ device_type = "pci";
+ bus-range = <0x0 0xff>;
+ ranges = <0x01000000 0x0 0x00008000 0x0 0x18008000 0x0 0x00008000>,
+ <0x02000000 0x0 0x60000000 0x0 0x60000000 0x0 0x20000000>;
+
+ gmac0: ethernet@3,0 {
+ reg = <0x1800 0x0 0x0 0x0 0x0>;
+ interrupt-parent = <&liointc0>;
+ interrupts = <12 IRQ_TYPE_LEVEL_HIGH>,
+ <13 IRQ_TYPE_LEVEL_HIGH>;
+ interrupt-names = "macirq", "eth_lpi";
+ status = "disabled";
+ };
+
+ gmac1: ethernet@3,1 {
+ reg = <0x1900 0x0 0x0 0x0 0x0>;
+ interrupt-parent = <&liointc0>;
+ interrupts = <14 IRQ_TYPE_LEVEL_HIGH>,
+ <15 IRQ_TYPE_LEVEL_HIGH>;
+ interrupt-names = "macirq", "eth_lpi";
+ status = "disabled";
+ };
+
+ ehci0: usb@4,1 {
+ reg = <0x2100 0x0 0x0 0x0 0x0>;
+ interrupt-parent = <&liointc1>;
+ interrupts = <18 IRQ_TYPE_LEVEL_HIGH>;
+ status = "disabled";
+ };
+
+ ohci0: usb@4,2 {
+ reg = <0x2200 0x0 0x0 0x0 0x0>;
+ interrupt-parent = <&liointc1>;
+ interrupts = <19 IRQ_TYPE_LEVEL_HIGH>;
+ status = "disabled";
+ };
+
+ display@6,0 {
+ reg = <0x3000 0x0 0x0 0x0 0x0>;
+ interrupt-parent = <&liointc0>;
+ interrupts = <28 IRQ_TYPE_LEVEL_HIGH>;
+ status = "disabled";
+ };
+
+ hda@7,0 {
+ reg = <0x3800 0x0 0x0 0x0 0x0>;
+ interrupt-parent = <&liointc0>;
+ interrupts = <4 IRQ_TYPE_LEVEL_HIGH>;
+ status = "disabled";
+ };
+
+ sata: sata@8,0 {
+ reg = <0x4000 0x0 0x0 0x0 0x0>;
+ interrupt-parent = <&liointc0>;
+ interrupts = <19 IRQ_TYPE_LEVEL_HIGH>;
+ status = "disabled";
+ };
+
+ pcie@9,0 {
+ reg = <0x4800 0x0 0x0 0x0 0x0>;
+ #address-cells = <3>;
+ #size-cells = <2>;
+ device_type = "pci";
+ #interrupt-cells = <1>;
+ interrupt-map-mask = <0x0 0x0 0x0 0x0>;
+ interrupt-map = <0x0 0x0 0x0 0x0 &liointc1 0x0 IRQ_TYPE_LEVEL_HIGH>;
+ ranges;
+ };
+
+ pcie@a,0 {
+ reg = <0x5000 0x0 0x0 0x0 0x0>;
+ #address-cells = <3>;
+ #size-cells = <2>;
+ device_type = "pci";
+ interrupt-parent = <&liointc1>;
+ #interrupt-cells = <1>;
+ interrupt-map-mask = <0x0 0x0 0x0 0x0>;
+ interrupt-map = <0x0 0x0 0x0 0x0 &liointc1 1 IRQ_TYPE_LEVEL_HIGH>;
+ ranges;
+ };
+
+ pcie@b,0 {
+ reg = <0x5800 0x0 0x0 0x0 0x0>;
+ #address-cells = <3>;
+ #size-cells = <2>;
+ device_type = "pci";
+ interrupt-parent = <&liointc1>;
+ #interrupt-cells = <1>;
+ interrupt-map-mask = <0x0 0x0 0x0 0x0>;
+ interrupt-map = <0x0 0x0 0x0 0x0 &liointc1 2 IRQ_TYPE_LEVEL_HIGH>;
+ ranges;
+ };
+
+ pcie@c,0 {
+ reg = <0x6000 0x0 0x0 0x0 0x0>;
+ #address-cells = <3>;
+ #size-cells = <2>;
+ device_type = "pci";
+ interrupt-parent = <&liointc1>;
+ #interrupt-cells = <1>;
+ interrupt-map-mask = <0x0 0x0 0x0 0x0>;
+ interrupt-map = <0x0 0x0 0x0 0x0 &liointc1 3 IRQ_TYPE_LEVEL_HIGH>;
+ ranges;
+ };
+
+ pcie@d,0 {
+ reg = <0x6800 0x0 0x0 0x0 0x0>;
+ #address-cells = <3>;
+ #size-cells = <2>;
+ device_type = "pci";
+ interrupt-parent = <&liointc1>;
+ #interrupt-cells = <1>;
+ interrupt-map-mask = <0x0 0x0 0x0 0x0>;
+ interrupt-map = <0x0 0x0 0x0 0x0 &liointc1 4 IRQ_TYPE_LEVEL_HIGH>;
+ ranges;
+ };
+
+ pcie@e,0 {
+ reg = <0x7000 0x0 0x0 0x0 0x0>;
+ #address-cells = <3>;
+ #size-cells = <2>;
+ device_type = "pci";
+ interrupt-parent = <&liointc1>;
+ #interrupt-cells = <1>;
+ interrupt-map-mask = <0x0 0x0 0x0 0x0>;
+ interrupt-map = <0x0 0x0 0x0 0x0 &liointc1 5 IRQ_TYPE_LEVEL_HIGH>;
+ ranges;
+ };
+ };
+ };
+};
diff --git a/arch/loongarch/boot/dts/loongson-2k2000-ref.dts b/arch/loongarch/boot/dts/loongson-2k2000-ref.dts
new file mode 100644
index 000000000000..dca91caf895e
--- /dev/null
+++ b/arch/loongarch/boot/dts/loongson-2k2000-ref.dts
@@ -0,0 +1,72 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (C) 2023 Loongson Technology Corporation Limited
+ */
+
+/dts-v1/;
+
+#include "loongson-2k2000.dtsi"
+
+/ {
+ compatible = "loongson,ls2k2000-ref", "loongson,ls2k2000";
+ model = "Loongson-2K2000 Reference Board";
+
+ aliases {
+ serial0 = &uart0;
+ };
+
+ chosen {
+ stdout-path = "serial0:115200n8";
+ };
+
+ memory@200000 {
+ device_type = "memory";
+ reg = <0x0 0x00200000 0x0 0x0ee00000>,
+ <0x0 0x90000000 0x0 0x70000000>;
+ };
+
+ reserved-memory {
+ #address-cells = <2>;
+ #size-cells = <2>;
+ ranges;
+
+ linux,cma {
+ compatible = "shared-dma-pool";
+ reusable;
+ size = <0x0 0x2000000>;
+ linux,cma-default;
+ };
+ };
+};
+
+&sata {
+ status = "okay";
+};
+
+&uart0 {
+ status = "okay";
+};
+
+&rtc0 {
+ status = "okay";
+};
+
+&xhci0 {
+ status = "okay";
+};
+
+&xhci1 {
+ status = "okay";
+};
+
+&gmac0 {
+ status = "okay";
+};
+
+&gmac1 {
+ status = "okay";
+};
+
+&gmac2 {
+ status = "okay";
+};
diff --git a/arch/loongarch/boot/dts/loongson-2k2000.dtsi b/arch/loongarch/boot/dts/loongson-2k2000.dtsi
new file mode 100644
index 000000000000..a231949b5f55
--- /dev/null
+++ b/arch/loongarch/boot/dts/loongson-2k2000.dtsi
@@ -0,0 +1,300 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (C) 2023 Loongson Technology Corporation Limited
+ */
+
+/dts-v1/;
+
+#include <dt-bindings/interrupt-controller/irq.h>
+
+/ {
+ #address-cells = <2>;
+ #size-cells = <2>;
+
+ cpus {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ cpu0: cpu@1 {
+ compatible = "loongson,la364";
+ device_type = "cpu";
+ reg = <0x0>;
+ clocks = <&cpu_clk>;
+ };
+
+ cpu1: cpu@2 {
+ compatible = "loongson,la364";
+ device_type = "cpu";
+ reg = <0x1>;
+ clocks = <&cpu_clk>;
+ };
+ };
+
+ cpu_clk: cpu-clk {
+ compatible = "fixed-clock";
+ #clock-cells = <0>;
+ clock-frequency = <1400000000>;
+ };
+
+ cpuintc: interrupt-controller {
+ compatible = "loongson,cpu-interrupt-controller";
+ #interrupt-cells = <1>;
+ interrupt-controller;
+ };
+
+ bus@10000000 {
+ compatible = "simple-bus";
+ ranges = <0x0 0x10000000 0x0 0x10000000 0x0 0x10000000>,
+ <0x0 0x02000000 0x0 0x02000000 0x0 0x02000000>,
+ <0x0 0x40000000 0x0 0x40000000 0x0 0x40000000>,
+ <0xfe 0x0 0xfe 0x0 0x0 0x40000000>;
+ #address-cells = <2>;
+ #size-cells = <2>;
+
+ pmc: power-management@100d0000 {
+ compatible = "loongson,ls2k2000-pmc", "loongson,ls2k0500-pmc", "syscon";
+ reg = <0x0 0x100d0000 0x0 0x58>;
+ interrupt-parent = <&eiointc>;
+ interrupts = <47>;
+ loongson,suspend-address = <0x0 0x1c000500>;
+
+ syscon-reboot {
+ compatible = "syscon-reboot";
+ offset = <0x30>;
+ mask = <0x1>;
+ };
+
+ syscon-poweroff {
+ compatible = "syscon-poweroff";
+ regmap = <&pmc>;
+ offset = <0x14>;
+ mask = <0x3c00>;
+ value = <0x3c00>;
+ };
+ };
+
+ liointc: interrupt-controller@1fe01400 {
+ compatible = "loongson,liointc-1.0";
+ reg = <0x0 0x1fe01400 0x0 0x64>;
+
+ interrupt-controller;
+ #interrupt-cells = <2>;
+ interrupt-parent = <&cpuintc>;
+ interrupts = <2>;
+ interrupt-names = "int0";
+ loongson,parent_int_map = <0xffffffff>, /* int0 */
+ <0x00000000>, /* int1 */
+ <0x00000000>, /* int2 */
+ <0x00000000>; /* int3 */
+ };
+
+ eiointc: interrupt-controller@1fe01600 {
+ compatible = "loongson,ls2k2000-eiointc";
+ reg = <0x0 0x1fe01600 0x0 0xea00>;
+ interrupt-controller;
+ #interrupt-cells = <1>;
+ interrupt-parent = <&cpuintc>;
+ interrupts = <3>;
+ };
+
+ pic: interrupt-controller@10000000 {
+ compatible = "loongson,pch-pic-1.0";
+ reg = <0x0 0x10000000 0x0 0x400>;
+ interrupt-controller;
+ #interrupt-cells = <2>;
+ loongson,pic-base-vec = <0>;
+ interrupt-parent = <&eiointc>;
+ };
+
+ msi: msi-controller@1fe01140 {
+ compatible = "loongson,pch-msi-1.0";
+ reg = <0x0 0x1fe01140 0x0 0x8>;
+ msi-controller;
+ loongson,msi-base-vec = <64>;
+ loongson,msi-num-vecs = <192>;
+ interrupt-parent = <&eiointc>;
+ };
+
+ rtc0: rtc@100d0100 {
+ compatible = "loongson,ls2k2000-rtc", "loongson,ls7a-rtc";
+ reg = <0x0 0x100d0100 0x0 0x100>;
+ interrupt-parent = <&pic>;
+ interrupts = <52 IRQ_TYPE_LEVEL_HIGH>;
+ status = "disabled";
+ };
+
+ uart0: serial@1fe001e0 {
+ compatible = "ns16550a";
+ reg = <0x0 0x1fe001e0 0x0 0x10>;
+ clock-frequency = <100000000>;
+ interrupt-parent = <&liointc>;
+ interrupts = <10 IRQ_TYPE_LEVEL_HIGH>;
+ no-loopback-test;
+ status = "disabled";
+ };
+
+ pcie@1a000000 {
+ compatible = "loongson,ls2k-pci";
+ reg = <0x0 0x1a000000 0x0 0x02000000>,
+ <0xfe 0x0 0x0 0x20000000>;
+ #address-cells = <3>;
+ #size-cells = <2>;
+ device_type = "pci";
+ bus-range = <0x0 0xff>;
+ ranges = <0x01000000 0x0 0x00008000 0x0 0x18400000 0x0 0x00008000>,
+ <0x02000000 0x0 0x60000000 0x0 0x60000000 0x0 0x20000000>;
+
+ gmac0: ethernet@3,0 {
+ reg = <0x1800 0x0 0x0 0x0 0x0>;
+ interrupts = <12 IRQ_TYPE_LEVEL_HIGH>;
+ interrupt-parent = <&pic>;
+ status = "disabled";
+ };
+
+ gmac1: ethernet@3,1 {
+ reg = <0x1900 0x0 0x0 0x0 0x0>;
+ interrupts = <14 IRQ_TYPE_LEVEL_HIGH>;
+ interrupt-parent = <&pic>;
+ status = "disabled";
+ };
+
+ gmac2: ethernet@3,2 {
+ reg = <0x1a00 0x0 0x0 0x0 0x0>;
+ interrupts = <17 IRQ_TYPE_LEVEL_HIGH>;
+ interrupt-parent = <&pic>;
+ status = "disabled";
+ };
+
+ xhci0: usb@4,0 {
+ reg = <0x2000 0x0 0x0 0x0 0x0>;
+ interrupts = <48 IRQ_TYPE_LEVEL_HIGH>;
+ interrupt-parent = <&pic>;
+ status = "disabled";
+ };
+
+ xhci1: usb@19,0 {
+ reg = <0xc800 0x0 0x0 0x0 0x0>;
+ interrupts = <22 IRQ_TYPE_LEVEL_HIGH>;
+ interrupt-parent = <&pic>;
+ status = "disabled";
+ };
+
+ display@6,1 {
+ reg = <0x3100 0x0 0x0 0x0 0x0>;
+ interrupts = <28 IRQ_TYPE_LEVEL_HIGH>;
+ interrupt-parent = <&pic>;
+ status = "disabled";
+ };
+
+ hda@7,0 {
+ reg = <0x3800 0x0 0x0 0x0 0x0>;
+ interrupts = <58 IRQ_TYPE_LEVEL_HIGH>;
+ interrupt-parent = <&pic>;
+ status = "disabled";
+ };
+
+ sata: sata@8,0 {
+ reg = <0x4000 0x0 0x0 0x0 0x0>;
+ interrupts = <16 IRQ_TYPE_LEVEL_HIGH>;
+ interrupt-parent = <&pic>;
+ status = "disabled";
+ };
+
+ pcie@9,0 {
+ reg = <0x4800 0x0 0x0 0x0 0x0>;
+ #address-cells = <3>;
+ #size-cells = <2>;
+ device_type = "pci";
+ interrupt-parent = <&pic>;
+ #interrupt-cells = <1>;
+ interrupt-map-mask = <0x0 0x0 0x0 0x0>;
+ interrupt-map = <0x0 0x0 0x0 0x0 &pic 32 IRQ_TYPE_LEVEL_HIGH>;
+ ranges;
+ };
+
+ pcie@a,0 {
+ reg = <0x5000 0x0 0x0 0x0 0x0>;
+ #address-cells = <3>;
+ #size-cells = <2>;
+ device_type = "pci";
+ interrupt-parent = <&pic>;
+ #interrupt-cells = <1>;
+ interrupt-map-mask = <0x0 0x0 0x0 0x0>;
+ interrupt-map = <0x0 0x0 0x0 0x0 &pic 33 IRQ_TYPE_LEVEL_HIGH>;
+ ranges;
+ };
+
+ pcie@b,0 {
+ reg = <0x5800 0x0 0x0 0x0 0x0>;
+ #address-cells = <3>;
+ #size-cells = <2>;
+ device_type = "pci";
+ interrupt-parent = <&pic>;
+ #interrupt-cells = <1>;
+ interrupt-map-mask = <0x0 0x0 0x0 0x0>;
+ interrupt-map = <0x0 0x0 0x0 0x0 &pic 34 IRQ_TYPE_LEVEL_HIGH>;
+ ranges;
+ };
+
+ pcie@c,0 {
+ reg = <0x6000 0x0 0x0 0x0 0x0>;
+ #address-cells = <3>;
+ #size-cells = <2>;
+ device_type = "pci";
+ interrupt-parent = <&pic>;
+ #interrupt-cells = <1>;
+ interrupt-map-mask = <0x0 0x0 0x0 0x0>;
+ interrupt-map = <0x0 0x0 0x0 0x0 &pic 35 IRQ_TYPE_LEVEL_HIGH>;
+ ranges;
+ };
+
+ pcie@d,0 {
+ reg = <0x6800 0x0 0x0 0x0 0x0>;
+ #address-cells = <3>;
+ #size-cells = <2>;
+ device_type = "pci";
+ interrupt-parent = <&pic>;
+ #interrupt-cells = <1>;
+ interrupt-map-mask = <0x0 0x0 0x0 0x0>;
+ interrupt-map = <0x0 0x0 0x0 0x0 &pic 36 IRQ_TYPE_LEVEL_HIGH>;
+ ranges;
+ };
+
+ pcie@e,0 {
+ reg = <0x7000 0x0 0x0 0x0 0x0>;
+ #address-cells = <3>;
+ #size-cells = <2>;
+ device_type = "pci";
+ interrupt-parent = <&pic>;
+ #interrupt-cells = <1>;
+ interrupt-map-mask = <0x0 0x0 0x0 0x0>;
+ interrupt-map = <0x0 0x0 0x0 0x0 &pic 37 IRQ_TYPE_LEVEL_HIGH>;
+ ranges;
+ };
+
+ pcie@f,0 {
+ reg = <0x7800 0x0 0x0 0x0 0x0>;
+ #address-cells = <3>;
+ #size-cells = <2>;
+ device_type = "pci";
+ interrupt-parent = <&pic>;
+ #interrupt-cells = <1>;
+ interrupt-map-mask = <0x0 0x0 0x0 0x0>;
+ interrupt-map = <0x0 0x0 0x0 0x0 &pic 40 IRQ_TYPE_LEVEL_HIGH>;
+ ranges;
+ };
+
+ pcie@10,0 {
+ reg = <0x8000 0x0 0x0 0x0 0x0>;
+ #address-cells = <3>;
+ #size-cells = <2>;
+ device_type = "pci";
+ interrupt-parent = <&pic>;
+ #interrupt-cells = <1>;
+ interrupt-map-mask = <0x0 0x0 0x0 0x0>;
+ interrupt-map = <0x0 0x0 0x0 0x0 &pic 30 IRQ_TYPE_LEVEL_HIGH>;
+ ranges;
+ };
+ };
+ };
+};
diff --git a/arch/loongarch/configs/loongson3_defconfig b/arch/loongarch/configs/loongson3_defconfig
index 60e331af9839..f18c2ba871ef 100644
--- a/arch/loongarch/configs/loongson3_defconfig
+++ b/arch/loongarch/configs/loongson3_defconfig
@@ -6,6 +6,8 @@ CONFIG_HIGH_RES_TIMERS=y
CONFIG_BPF_SYSCALL=y
CONFIG_BPF_JIT=y
CONFIG_PREEMPT=y
+CONFIG_PREEMPT_DYNAMIC=y
+CONFIG_SCHED_CORE=y
CONFIG_BSD_PROCESS_ACCT=y
CONFIG_BSD_PROCESS_ACCT_V3=y
CONFIG_TASKSTATS=y
@@ -19,6 +21,7 @@ CONFIG_BLK_CGROUP=y
CONFIG_CFS_BANDWIDTH=y
CONFIG_RT_GROUP_SCHED=y
CONFIG_CGROUP_PIDS=y
+CONFIG_CGROUP_RDMA=y
CONFIG_CGROUP_FREEZER=y
CONFIG_CGROUP_HUGETLB=y
CONFIG_CPUSETS=y
@@ -26,6 +29,7 @@ CONFIG_CGROUP_DEVICE=y
CONFIG_CGROUP_CPUACCT=y
CONFIG_CGROUP_PERF=y
CONFIG_CGROUP_BPF=y
+CONFIG_CGROUP_MISC=y
CONFIG_NAMESPACES=y
CONFIG_USER_NS=y
CONFIG_CHECKPOINT_RESTORE=y
@@ -35,6 +39,8 @@ CONFIG_BLK_DEV_INITRD=y
CONFIG_EXPERT=y
CONFIG_KALLSYMS_ALL=y
CONFIG_PERF_EVENTS=y
+CONFIG_KEXEC=y
+CONFIG_CRASH_DUMP=y
CONFIG_LOONGARCH=y
CONFIG_64BIT=y
CONFIG_MACH_LOONGSON64=y
@@ -44,13 +50,11 @@ CONFIG_DMI=y
CONFIG_EFI=y
CONFIG_SMP=y
CONFIG_HOTPLUG_CPU=y
-CONFIG_NR_CPUS=64
+CONFIG_NR_CPUS=256
CONFIG_NUMA=y
CONFIG_CPU_HAS_FPU=y
CONFIG_CPU_HAS_LSX=y
CONFIG_CPU_HAS_LASX=y
-CONFIG_KEXEC=y
-CONFIG_CRASH_DUMP=y
CONFIG_RANDOMIZE_BASE=y
CONFIG_SUSPEND=y
CONFIG_HIBERNATION=y
@@ -62,10 +66,6 @@ CONFIG_ACPI_IPMI=m
CONFIG_ACPI_HOTPLUG_CPU=y
CONFIG_ACPI_PCI_SLOT=y
CONFIG_ACPI_HOTPLUG_MEMORY=y
-CONFIG_EFI_ZBOOT=y
-CONFIG_EFI_GENERIC_STUB_INITRD_CMDLINE_LOADER=y
-CONFIG_EFI_CAPSULE_LOADER=m
-CONFIG_EFI_TEST=m
CONFIG_VIRTUALIZATION=y
CONFIG_KVM=m
CONFIG_JUMP_LABEL=y
@@ -74,10 +74,18 @@ CONFIG_MODULE_FORCE_LOAD=y
CONFIG_MODULE_UNLOAD=y
CONFIG_MODULE_FORCE_UNLOAD=y
CONFIG_MODVERSIONS=y
+CONFIG_BLK_DEV_ZONED=y
CONFIG_BLK_DEV_THROTTLING=y
+CONFIG_BLK_DEV_THROTTLING_LOW=y
+CONFIG_BLK_WBT=y
+CONFIG_BLK_CGROUP_IOLATENCY=y
+CONFIG_BLK_CGROUP_FC_APPID=y
+CONFIG_BLK_CGROUP_IOCOST=y
+CONFIG_BLK_CGROUP_IOPRIO=y
CONFIG_PARTITION_ADVANCED=y
CONFIG_BSD_DISKLABEL=y
CONFIG_UNIXWARE_DISKLABEL=y
+CONFIG_CMDLINE_PARTITION=y
CONFIG_IOSCHED_BFQ=y
CONFIG_BFQ_GROUP_IOSCHED=y
CONFIG_BINFMT_MISC=m
@@ -93,6 +101,8 @@ CONFIG_MEMORY_HOTPLUG_DEFAULT_ONLINE=y
CONFIG_MEMORY_HOTREMOVE=y
CONFIG_KSM=y
CONFIG_TRANSPARENT_HUGEPAGE=y
+CONFIG_CMA=y
+CONFIG_CMA_SYSFS=y
CONFIG_USERFAULTFD=y
CONFIG_NET=y
CONFIG_PACKET=y
@@ -128,6 +138,7 @@ CONFIG_IPV6_ROUTER_PREF=y
CONFIG_IPV6_ROUTE_INFO=y
CONFIG_INET6_ESP=m
CONFIG_IPV6_MROUTE=y
+CONFIG_MPTCP=y
CONFIG_NETWORK_PHY_TIMESTAMPING=y
CONFIG_NETFILTER=y
CONFIG_BRIDGE_NETFILTER=m
@@ -352,6 +363,7 @@ CONFIG_PCIEAER=y
CONFIG_PCI_IOV=y
CONFIG_HOTPLUG_PCI=y
CONFIG_HOTPLUG_PCI_SHPC=y
+CONFIG_PCI_HOST_GENERIC=y
CONFIG_PCCARD=m
CONFIG_YENTA=m
CONFIG_RAPIDIO=y
@@ -365,6 +377,10 @@ CONFIG_DEVTMPFS=y
CONFIG_DEVTMPFS_MOUNT=y
CONFIG_FW_LOADER_COMPRESS=y
CONFIG_FW_LOADER_COMPRESS_ZSTD=y
+CONFIG_EFI_ZBOOT=y
+CONFIG_EFI_BOOTLOADER_CONTROL=m
+CONFIG_EFI_CAPSULE_LOADER=m
+CONFIG_EFI_TEST=m
CONFIG_MTD=m
CONFIG_MTD_BLOCK=m
CONFIG_MTD_CFI=m
@@ -586,6 +602,7 @@ CONFIG_RTW89_8852AE=m
CONFIG_RTW89_8852CE=m
CONFIG_ZD1211RW=m
CONFIG_USB_NET_RNDIS_WLAN=m
+CONFIG_USB4_NET=m
CONFIG_INPUT_MOUSEDEV=y
CONFIG_INPUT_MOUSEDEV_PSAUX=y
CONFIG_INPUT_EVDEV=y
@@ -691,6 +708,9 @@ CONFIG_SND_HDA_CODEC_SIGMATEL=y
CONFIG_SND_HDA_CODEC_HDMI=y
CONFIG_SND_HDA_CODEC_CONEXANT=y
CONFIG_SND_USB_AUDIO=m
+CONFIG_SND_SOC=m
+CONFIG_SND_SOC_LOONGSON_CARD=m
+CONFIG_SND_VIRTIO=m
CONFIG_HIDRAW=y
CONFIG_UHID=m
CONFIG_HID_A4TECH=m
@@ -738,6 +758,11 @@ CONFIG_RTC_CLASS=y
CONFIG_RTC_DRV_EFI=y
CONFIG_RTC_DRV_LOONGSON=y
CONFIG_DMADEVICES=y
+CONFIG_LS2X_APB_DMA=y
+CONFIG_UDMABUF=y
+CONFIG_DMABUF_HEAPS=y
+CONFIG_DMABUF_HEAPS_SYSTEM=y
+CONFIG_DMABUF_HEAPS_CMA=y
CONFIG_UIO=m
CONFIG_UIO_PDRV_GENIRQ=m
CONFIG_UIO_DMEM_GENIRQ=m
@@ -778,7 +803,15 @@ CONFIG_DEVFREQ_GOV_SIMPLE_ONDEMAND=y
CONFIG_DEVFREQ_GOV_PERFORMANCE=y
CONFIG_DEVFREQ_GOV_POWERSAVE=y
CONFIG_DEVFREQ_GOV_USERSPACE=y
+CONFIG_NTB=m
+CONFIG_NTB_MSI=y
+CONFIG_NTB_IDT=m
+CONFIG_NTB_EPF=m
+CONFIG_NTB_SWITCHTEC=m
+CONFIG_NTB_PERF=m
+CONFIG_NTB_TRANSPORT=m
CONFIG_PWM=y
+CONFIG_USB4=y
CONFIG_EXT2_FS=y
CONFIG_EXT2_FS_XATTR=y
CONFIG_EXT2_FS_POSIX_ACL=y
@@ -797,6 +830,10 @@ CONFIG_GFS2_FS_LOCKING_DLM=y
CONFIG_OCFS2_FS=m
CONFIG_BTRFS_FS=y
CONFIG_BTRFS_FS_POSIX_ACL=y
+CONFIG_F2FS_FS=m
+CONFIG_F2FS_FS_SECURITY=y
+CONFIG_F2FS_CHECK_FS=y
+CONFIG_F2FS_FS_COMPRESSION=y
CONFIG_FANOTIFY=y
CONFIG_FANOTIFY_ACCESS_PERMISSIONS=y
CONFIG_QUOTA=y
@@ -883,7 +920,6 @@ CONFIG_KEY_DH_OPERATIONS=y
CONFIG_SECURITY=y
CONFIG_SECURITY_SELINUX=y
CONFIG_SECURITY_SELINUX_BOOTPARAM=y
-CONFIG_SECURITY_SELINUX_DISABLE=y
CONFIG_SECURITY_APPARMOR=y
CONFIG_SECURITY_YAMA=y
CONFIG_DEFAULT_SECURITY_DAC=y
@@ -914,6 +950,9 @@ CONFIG_CRYPTO_USER_API_RNG=m
CONFIG_CRYPTO_USER_API_AEAD=m
CONFIG_CRYPTO_CRC32_LOONGARCH=m
CONFIG_CRYPTO_DEV_VIRTIO=m
+CONFIG_DMA_CMA=y
+CONFIG_DMA_NUMA_CMA=y
+CONFIG_CMA_SIZE_MBYTES=0
CONFIG_PRINTK_TIME=y
CONFIG_STRIP_ASM_SYMS=y
CONFIG_MAGIC_SYSRQ=y
diff --git a/arch/loongarch/include/asm/bootinfo.h b/arch/loongarch/include/asm/bootinfo.h
index c60796869b2b..6d5846dd075c 100644
--- a/arch/loongarch/include/asm/bootinfo.h
+++ b/arch/loongarch/include/asm/bootinfo.h
@@ -24,13 +24,15 @@ struct loongson_board_info {
const char *board_vendor;
};
+#define NR_WORDS DIV_ROUND_UP(NR_CPUS, BITS_PER_LONG)
+
struct loongson_system_configuration {
int nr_cpus;
int nr_nodes;
int boot_cpu_id;
int cores_per_node;
int cores_per_package;
- unsigned long cores_io_master;
+ unsigned long cores_io_master[NR_WORDS];
unsigned long suspend_addr;
const char *cpuname;
};
@@ -42,7 +44,7 @@ extern struct loongson_system_configuration loongson_sysconf;
static inline bool io_master(int cpu)
{
- return test_bit(cpu, &loongson_sysconf.cores_io_master);
+ return test_bit(cpu, loongson_sysconf.cores_io_master);
}
#endif /* _ASM_BOOTINFO_H */
diff --git a/arch/loongarch/include/asm/crash_core.h b/arch/loongarch/include/asm/crash_core.h
new file mode 100644
index 000000000000..218bdbfa527b
--- /dev/null
+++ b/arch/loongarch/include/asm/crash_core.h
@@ -0,0 +1,12 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+#ifndef _LOONGARCH_CRASH_CORE_H
+#define _LOONGARCH_CRASH_CORE_H
+
+#define CRASH_ALIGN SZ_2M
+
+#define CRASH_ADDR_LOW_MAX SZ_4G
+#define CRASH_ADDR_HIGH_MAX memblock_end_of_DRAM()
+
+extern phys_addr_t memblock_end_of_DRAM(void);
+
+#endif
diff --git a/arch/loongarch/include/asm/elf.h b/arch/loongarch/include/asm/elf.h
index 9b16a3b8e706..f16bd42456e4 100644
--- a/arch/loongarch/include/asm/elf.h
+++ b/arch/loongarch/include/asm/elf.h
@@ -241,8 +241,6 @@ void loongarch_dump_regs64(u64 *uregs, const struct pt_regs *regs);
do { \
current->thread.vdso = &vdso_info; \
\
- loongarch_set_personality_fcsr(state); \
- \
if (personality(current->personality) != PER_LINUX) \
set_personality(PER_LINUX); \
} while (0)
@@ -259,7 +257,6 @@ do { \
clear_thread_flag(TIF_32BIT_ADDR); \
\
current->thread.vdso = &vdso_info; \
- loongarch_set_personality_fcsr(state); \
\
p = personality(current->personality); \
if (p != PER_LINUX32 && p != PER_LINUX) \
@@ -340,6 +337,4 @@ extern int arch_elf_pt_proc(void *ehdr, void *phdr, struct file *elf,
extern int arch_check_elf(void *ehdr, bool has_interpreter, void *interp_ehdr,
struct arch_elf_state *state);
-extern void loongarch_set_personality_fcsr(struct arch_elf_state *state);
-
#endif /* _ASM_ELF_H */
diff --git a/arch/loongarch/include/asm/ftrace.h b/arch/loongarch/include/asm/ftrace.h
index a11996eb5892..de891c2c83d4 100644
--- a/arch/loongarch/include/asm/ftrace.h
+++ b/arch/loongarch/include/asm/ftrace.h
@@ -63,7 +63,7 @@ ftrace_regs_get_instruction_pointer(struct ftrace_regs *fregs)
static __always_inline void
ftrace_regs_set_instruction_pointer(struct ftrace_regs *fregs, unsigned long ip)
{
- regs_set_return_value(&fregs->regs, ip);
+ instruction_pointer_set(&fregs->regs, ip);
}
#define ftrace_regs_get_argument(fregs, n) \
diff --git a/arch/loongarch/include/asm/shmparam.h b/arch/loongarch/include/asm/shmparam.h
deleted file mode 100644
index c9554f48d2df..000000000000
--- a/arch/loongarch/include/asm/shmparam.h
+++ /dev/null
@@ -1,12 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 */
-/*
- * Copyright (C) 2020-2022 Loongson Technology Corporation Limited
- */
-#ifndef _ASM_SHMPARAM_H
-#define _ASM_SHMPARAM_H
-
-#define __ARCH_FORCE_SHMLBA 1
-
-#define SHMLBA SZ_64K /* attach addr a multiple of this */
-
-#endif /* _ASM_SHMPARAM_H */
diff --git a/arch/loongarch/kernel/acpi.c b/arch/loongarch/kernel/acpi.c
index 8e00a754e548..b6b097bbf866 100644
--- a/arch/loongarch/kernel/acpi.c
+++ b/arch/loongarch/kernel/acpi.c
@@ -119,7 +119,7 @@ acpi_parse_eio_master(union acpi_subtable_headers *header, const unsigned long e
return -EINVAL;
core = eiointc->node * CORES_PER_EIO_NODE;
- set_bit(core, &(loongson_sysconf.cores_io_master));
+ set_bit(core, loongson_sysconf.cores_io_master);
return 0;
}
diff --git a/arch/loongarch/kernel/efi.c b/arch/loongarch/kernel/efi.c
index acb5d3385675..000825406c1f 100644
--- a/arch/loongarch/kernel/efi.c
+++ b/arch/loongarch/kernel/efi.c
@@ -140,4 +140,6 @@ void __init efi_init(void)
early_memunmap(tbl, sizeof(*tbl));
}
+
+ efi_esrt_init();
}
diff --git a/arch/loongarch/kernel/elf.c b/arch/loongarch/kernel/elf.c
index 183e94fc9c69..0fa81ced28dc 100644
--- a/arch/loongarch/kernel/elf.c
+++ b/arch/loongarch/kernel/elf.c
@@ -23,8 +23,3 @@ int arch_check_elf(void *_ehdr, bool has_interpreter, void *_interp_ehdr,
{
return 0;
}
-
-void loongarch_set_personality_fcsr(struct arch_elf_state *state)
-{
- current->thread.fpu.fcsr = boot_cpu_data.fpu_csr0;
-}
diff --git a/arch/loongarch/kernel/env.c b/arch/loongarch/kernel/env.c
index 6b3bfb0092e6..2f1f5b08638f 100644
--- a/arch/loongarch/kernel/env.c
+++ b/arch/loongarch/kernel/env.c
@@ -5,13 +5,16 @@
* Copyright (C) 2020-2022 Loongson Technology Corporation Limited
*/
#include <linux/acpi.h>
+#include <linux/clk.h>
#include <linux/efi.h>
#include <linux/export.h>
#include <linux/memblock.h>
+#include <linux/of_clk.h>
#include <asm/early_ioremap.h>
#include <asm/bootinfo.h>
#include <asm/loongson.h>
#include <asm/setup.h>
+#include <asm/time.h>
u64 efi_system_table;
struct loongson_system_configuration loongson_sysconf;
@@ -36,7 +39,16 @@ void __init init_environ(void)
static int __init init_cpu_fullname(void)
{
- int cpu;
+ struct device_node *root;
+ int cpu, ret;
+ char *model;
+
+ /* Parsing cpuname from DTS model property */
+ root = of_find_node_by_path("/");
+ ret = of_property_read_string(root, "model", (const char **)&model);
+ of_node_put(root);
+ if (ret == 0)
+ loongson_sysconf.cpuname = strsep(&model, " ");
if (loongson_sysconf.cpuname && !strncmp(loongson_sysconf.cpuname, "Loongson", 8)) {
for (cpu = 0; cpu < NR_CPUS; cpu++)
@@ -46,6 +58,26 @@ static int __init init_cpu_fullname(void)
}
arch_initcall(init_cpu_fullname);
+static int __init fdt_cpu_clk_init(void)
+{
+ struct clk *clk;
+ struct device_node *np;
+
+ np = of_get_cpu_node(0, NULL);
+ if (!np)
+ return -ENODEV;
+
+ clk = of_clk_get(np, 0);
+ if (IS_ERR(clk))
+ return -ENODEV;
+
+ cpu_clock_freq = clk_get_rate(clk);
+ clk_put(clk);
+
+ return 0;
+}
+late_initcall(fdt_cpu_clk_init);
+
static ssize_t boardinfo_show(struct kobject *kobj,
struct kobj_attribute *attr, char *buf)
{
diff --git a/arch/loongarch/kernel/head.S b/arch/loongarch/kernel/head.S
index 0ecab4216392..c4f7de2e2805 100644
--- a/arch/loongarch/kernel/head.S
+++ b/arch/loongarch/kernel/head.S
@@ -74,6 +74,11 @@ SYM_CODE_START(kernel_entry) # kernel entry point
la.pcrel t0, fw_arg2
st.d a2, t0, 0
+#ifdef CONFIG_PAGE_SIZE_4KB
+ li.d t0, 0
+ li.d t1, CSR_STFILL
+ csrxchg t0, t1, LOONGARCH_CSR_IMPCTL1
+#endif
/* KSave3 used for percpu base, initialized as 0 */
csrwr zero, PERCPU_BASE_KS
/* GPR21 used for percpu base (runtime), initialized as 0 */
@@ -126,6 +131,11 @@ SYM_CODE_START(smpboot_entry)
JUMP_VIRT_ADDR t0, t1
+#ifdef CONFIG_PAGE_SIZE_4KB
+ li.d t0, 0
+ li.d t1, CSR_STFILL
+ csrxchg t0, t1, LOONGARCH_CSR_IMPCTL1
+#endif
/* Enable PG */
li.w t0, 0xb0 # PLV=0, IE=0, PG=1
csrwr t0, LOONGARCH_CSR_CRMD
diff --git a/arch/loongarch/kernel/process.c b/arch/loongarch/kernel/process.c
index 767d94cce0de..f2ff8b5d591e 100644
--- a/arch/loongarch/kernel/process.c
+++ b/arch/loongarch/kernel/process.c
@@ -85,6 +85,7 @@ void start_thread(struct pt_regs *regs, unsigned long pc, unsigned long sp)
regs->csr_euen = euen;
lose_fpu(0);
lose_lbt(0);
+ current->thread.fpu.fcsr = boot_cpu_data.fpu_csr0;
clear_thread_flag(TIF_LSX_CTX_LIVE);
clear_thread_flag(TIF_LASX_CTX_LIVE);
diff --git a/arch/loongarch/kernel/setup.c b/arch/loongarch/kernel/setup.c
index d183a745fb85..edf2bba80130 100644
--- a/arch/loongarch/kernel/setup.c
+++ b/arch/loongarch/kernel/setup.c
@@ -252,38 +252,23 @@ static void __init arch_reserve_vmcore(void)
#endif
}
-/* 2MB alignment for crash kernel regions */
-#define CRASH_ALIGN SZ_2M
-#define CRASH_ADDR_MAX SZ_4G
-
-static void __init arch_parse_crashkernel(void)
+static void __init arch_reserve_crashkernel(void)
{
-#ifdef CONFIG_KEXEC
int ret;
- unsigned long long total_mem;
+ unsigned long long low_size = 0;
unsigned long long crash_base, crash_size;
+ char *cmdline = boot_command_line;
+ bool high = false;
- total_mem = memblock_phys_mem_size();
- ret = parse_crashkernel(boot_command_line, total_mem,
- &crash_size, &crash_base,
- NULL, NULL);
- if (ret < 0 || crash_size <= 0)
+ if (!IS_ENABLED(CONFIG_KEXEC_CORE))
return;
- if (crash_base <= 0) {
- crash_base = memblock_phys_alloc_range(crash_size, CRASH_ALIGN, CRASH_ALIGN, CRASH_ADDR_MAX);
- if (!crash_base) {
- pr_warn("crashkernel reservation failed - No suitable area found.\n");
- return;
- }
- } else if (!memblock_phys_alloc_range(crash_size, CRASH_ALIGN, crash_base, crash_base + crash_size)) {
- pr_warn("Invalid memory region reserved for crash kernel\n");
+ ret = parse_crashkernel(cmdline, memblock_phys_mem_size(),
+ &crash_size, &crash_base, &low_size, &high);
+ if (ret)
return;
- }
- crashk_res.start = crash_base;
- crashk_res.end = crash_base + crash_size - 1;
-#endif
+ reserve_crashkernel_generic(cmdline, crash_size, crash_base, low_size, high);
}
static void __init fdt_setup(void)
@@ -295,8 +280,12 @@ static void __init fdt_setup(void)
if (acpi_os_get_root_pointer())
return;
- /* Look for a device tree configuration table entry */
- fdt_pointer = efi_fdt_pointer();
+ /* Prefer to use built-in dtb, checking its legality first. */
+ if (!fdt_check_header(__dtb_start))
+ fdt_pointer = __dtb_start;
+ else
+ fdt_pointer = efi_fdt_pointer(); /* Fallback to firmware dtb */
+
if (!fdt_pointer || fdt_check_header(fdt_pointer))
return;
@@ -330,7 +319,9 @@ static void __init bootcmdline_init(char **cmdline_p)
if (boot_command_line[0])
strlcat(boot_command_line, " ", COMMAND_LINE_SIZE);
- strlcat(boot_command_line, init_command_line, COMMAND_LINE_SIZE);
+ if (!strstr(boot_command_line, init_command_line))
+ strlcat(boot_command_line, init_command_line, COMMAND_LINE_SIZE);
+
goto out;
}
#endif
@@ -357,7 +348,7 @@ out:
void __init platform_init(void)
{
arch_reserve_vmcore();
- arch_parse_crashkernel();
+ arch_reserve_crashkernel();
#ifdef CONFIG_ACPI_TABLE_UPGRADE
acpi_table_upgrade();
@@ -467,15 +458,6 @@ static void __init resource_init(void)
request_resource(res, &data_resource);
request_resource(res, &bss_resource);
}
-
-#ifdef CONFIG_KEXEC
- if (crashk_res.start < crashk_res.end) {
- insert_resource(&iomem_resource, &crashk_res);
- pr_info("Reserving %ldMB of memory at %ldMB for crashkernel\n",
- (unsigned long)((crashk_res.end - crashk_res.start + 1) >> 20),
- (unsigned long)(crashk_res.start >> 20));
- }
-#endif
}
static int __init add_legacy_isa_io(struct fwnode_handle *fwnode,
diff --git a/arch/loongarch/kernel/smp.c b/arch/loongarch/kernel/smp.c
index 5bca12d16e06..a16e3dbe9f09 100644
--- a/arch/loongarch/kernel/smp.c
+++ b/arch/loongarch/kernel/smp.c
@@ -208,7 +208,7 @@ static void __init fdt_smp_setup(void)
}
loongson_sysconf.nr_cpus = num_processors;
- set_bit(0, &(loongson_sysconf.cores_io_master));
+ set_bit(0, loongson_sysconf.cores_io_master);
#endif
}
@@ -216,6 +216,9 @@ void __init loongson_smp_setup(void)
{
fdt_smp_setup();
+ if (loongson_sysconf.cores_per_package == 0)
+ loongson_sysconf.cores_per_package = num_processors;
+
cpu_data[0].core = cpu_logical_map(0) % loongson_sysconf.cores_per_package;
cpu_data[0].package = cpu_logical_map(0) / loongson_sysconf.cores_per_package;
diff --git a/arch/loongarch/net/bpf_jit.c b/arch/loongarch/net/bpf_jit.c
index 4fcd6cd6da23..e73323d759d0 100644
--- a/arch/loongarch/net/bpf_jit.c
+++ b/arch/loongarch/net/bpf_jit.c
@@ -201,6 +201,11 @@ bool bpf_jit_supports_kfunc_call(void)
return true;
}
+bool bpf_jit_supports_far_kfunc_call(void)
+{
+ return true;
+}
+
/* initialized on the first pass of build_body() */
static int out_offset = -1;
static int emit_bpf_tail_call(struct jit_ctx *ctx)
@@ -465,7 +470,6 @@ static int build_insn(const struct bpf_insn *insn, struct jit_ctx *ctx, bool ext
const u8 dst = regmap[insn->dst_reg];
const s16 off = insn->off;
const s32 imm = insn->imm;
- const u64 imm64 = (u64)(insn + 1)->imm << 32 | (u32)insn->imm;
const bool is32 = BPF_CLASS(insn->code) == BPF_ALU || BPF_CLASS(insn->code) == BPF_JMP32;
switch (code) {
@@ -923,8 +927,12 @@ static int build_insn(const struct bpf_insn *insn, struct jit_ctx *ctx, bool ext
/* dst = imm64 */
case BPF_LD | BPF_IMM | BPF_DW:
+ {
+ const u64 imm64 = (u64)(insn + 1)->imm << 32 | (u32)insn->imm;
+
move_imm(ctx, dst, imm64, is32);
return 1;
+ }
/* dst = *(size *)(src + off) */
case BPF_LDX | BPF_MEM | BPF_B: