diff options
Diffstat (limited to 'arch/riscv')
32 files changed, 369 insertions, 101 deletions
diff --git a/arch/riscv/Kconfig.errata b/arch/riscv/Kconfig.errata index 910ba8837add..2acc7d876e1f 100644 --- a/arch/riscv/Kconfig.errata +++ b/arch/riscv/Kconfig.errata @@ -82,14 +82,14 @@ config ERRATA_THEAD Otherwise, please say "N" here to avoid unnecessary overhead. -config ERRATA_THEAD_PBMT - bool "Apply T-Head memory type errata" +config ERRATA_THEAD_MAE + bool "Apply T-Head's memory attribute extension (XTheadMae) errata" depends on ERRATA_THEAD && 64BIT && MMU select RISCV_ALTERNATIVE_EARLY default y help - This will apply the memory type errata to handle the non-standard - memory type bits in page-table-entries on T-Head SoCs. + This will apply the memory attribute extension errata to handle the + non-standard PTE utilization on T-Head SoCs (XTheadMae). If you don't know what to do here, say "Y". diff --git a/arch/riscv/Kconfig.socs b/arch/riscv/Kconfig.socs index 623de5f8a208..f51bb24bc84c 100644 --- a/arch/riscv/Kconfig.socs +++ b/arch/riscv/Kconfig.socs @@ -1,12 +1,12 @@ menu "SoC selection" config ARCH_MICROCHIP_POLARFIRE - def_bool SOC_MICROCHIP_POLARFIRE + def_bool ARCH_MICROCHIP -config SOC_MICROCHIP_POLARFIRE - bool "Microchip PolarFire SoCs" +config ARCH_MICROCHIP + bool "Microchip SoCs" help - This enables support for Microchip PolarFire SoC platforms. + This enables support for Microchip SoC platforms. config ARCH_RENESAS bool "Renesas RISC-V SoCs" @@ -14,9 +14,6 @@ config ARCH_RENESAS This enables support for the RISC-V based Renesas SoCs. config ARCH_SIFIVE - def_bool SOC_SIFIVE - -config SOC_SIFIVE bool "SiFive SoCs" select ERRATA_SIFIVE if !XIP_KERNEL help @@ -55,9 +52,6 @@ config ARCH_THEAD This enables support for the RISC-V based T-HEAD SoCs. config ARCH_VIRT - def_bool SOC_VIRT - -config SOC_VIRT bool "QEMU Virt Machine" select CLINT_TIMER if RISCV_M_MODE select POWER_RESET @@ -72,11 +66,13 @@ config SOC_VIRT This enables support for QEMU Virt Machine. config ARCH_CANAAN - def_bool SOC_CANAAN + bool "Canaan Kendryte SoC" + help + This enables support for Canaan Kendryte series SoC platform hardware. -config SOC_CANAAN +config SOC_CANAAN_K210 bool "Canaan Kendryte K210 SoC" - depends on !MMU + depends on !MMU && ARCH_CANAAN select CLINT_TIMER if RISCV_M_MODE select ARCH_HAS_RESET_CONTROLLER select PINCTRL diff --git a/arch/riscv/Makefile b/arch/riscv/Makefile index 252d63942f34..1e002d8003c5 100644 --- a/arch/riscv/Makefile +++ b/arch/riscv/Makefile @@ -151,10 +151,10 @@ endif endif vdso-install-y += arch/riscv/kernel/vdso/vdso.so.dbg -vdso-install-$(CONFIG_COMPAT) += arch/riscv/kernel/compat_vdso/compat_vdso.so.dbg:../compat_vdso/compat_vdso.so +vdso-install-$(CONFIG_COMPAT) += arch/riscv/kernel/compat_vdso/compat_vdso.so.dbg ifneq ($(CONFIG_XIP_KERNEL),y) -ifeq ($(CONFIG_RISCV_M_MODE)$(CONFIG_ARCH_CANAAN),yy) +ifeq ($(CONFIG_RISCV_M_MODE)$(CONFIG_SOC_CANAAN_K210),yy) KBUILD_IMAGE := $(boot)/loader.bin else ifeq ($(CONFIG_EFI_ZBOOT),) diff --git a/arch/riscv/boot/dts/renesas/r9a07g043f.dtsi b/arch/riscv/boot/dts/renesas/r9a07g043f.dtsi index f35324b9173c..e0ddf8f602c7 100644 --- a/arch/riscv/boot/dts/renesas/r9a07g043f.dtsi +++ b/arch/riscv/boot/dts/renesas/r9a07g043f.dtsi @@ -54,6 +54,81 @@ dma-noncoherent; interrupt-parent = <&plic>; + irqc: interrupt-controller@110a0000 { + compatible = "renesas,r9a07g043f-irqc"; + reg = <0 0x110a0000 0 0x20000>; + #interrupt-cells = <2>; + #address-cells = <0>; + interrupt-controller; + interrupts = <32 IRQ_TYPE_LEVEL_HIGH>, + <33 IRQ_TYPE_LEVEL_HIGH>, + <34 IRQ_TYPE_LEVEL_HIGH>, + <35 IRQ_TYPE_LEVEL_HIGH>, + <36 IRQ_TYPE_LEVEL_HIGH>, + <37 IRQ_TYPE_LEVEL_HIGH>, + <38 IRQ_TYPE_LEVEL_HIGH>, + <39 IRQ_TYPE_LEVEL_HIGH>, + <40 IRQ_TYPE_LEVEL_HIGH>, + <476 IRQ_TYPE_LEVEL_HIGH>, + <477 IRQ_TYPE_LEVEL_HIGH>, + <478 IRQ_TYPE_LEVEL_HIGH>, + <479 IRQ_TYPE_LEVEL_HIGH>, + <480 IRQ_TYPE_LEVEL_HIGH>, + <481 IRQ_TYPE_LEVEL_HIGH>, + <482 IRQ_TYPE_LEVEL_HIGH>, + <483 IRQ_TYPE_LEVEL_HIGH>, + <484 IRQ_TYPE_LEVEL_HIGH>, + <485 IRQ_TYPE_LEVEL_HIGH>, + <486 IRQ_TYPE_LEVEL_HIGH>, + <487 IRQ_TYPE_LEVEL_HIGH>, + <488 IRQ_TYPE_LEVEL_HIGH>, + <489 IRQ_TYPE_LEVEL_HIGH>, + <490 IRQ_TYPE_LEVEL_HIGH>, + <491 IRQ_TYPE_LEVEL_HIGH>, + <492 IRQ_TYPE_LEVEL_HIGH>, + <493 IRQ_TYPE_LEVEL_HIGH>, + <494 IRQ_TYPE_LEVEL_HIGH>, + <495 IRQ_TYPE_LEVEL_HIGH>, + <496 IRQ_TYPE_LEVEL_HIGH>, + <497 IRQ_TYPE_LEVEL_HIGH>, + <498 IRQ_TYPE_LEVEL_HIGH>, + <499 IRQ_TYPE_LEVEL_HIGH>, + <500 IRQ_TYPE_LEVEL_HIGH>, + <501 IRQ_TYPE_LEVEL_HIGH>, + <502 IRQ_TYPE_LEVEL_HIGH>, + <503 IRQ_TYPE_LEVEL_HIGH>, + <504 IRQ_TYPE_LEVEL_HIGH>, + <505 IRQ_TYPE_LEVEL_HIGH>, + <506 IRQ_TYPE_LEVEL_HIGH>, + <507 IRQ_TYPE_LEVEL_HIGH>, + <57 IRQ_TYPE_LEVEL_HIGH>, + <66 IRQ_TYPE_EDGE_RISING>, + <67 IRQ_TYPE_EDGE_RISING>, + <68 IRQ_TYPE_EDGE_RISING>, + <69 IRQ_TYPE_EDGE_RISING>, + <70 IRQ_TYPE_EDGE_RISING>, + <71 IRQ_TYPE_EDGE_RISING>; + interrupt-names = "nmi", + "irq0", "irq1", "irq2", "irq3", + "irq4", "irq5", "irq6", "irq7", + "tint0", "tint1", "tint2", "tint3", + "tint4", "tint5", "tint6", "tint7", + "tint8", "tint9", "tint10", "tint11", + "tint12", "tint13", "tint14", "tint15", + "tint16", "tint17", "tint18", "tint19", + "tint20", "tint21", "tint22", "tint23", + "tint24", "tint25", "tint26", "tint27", + "tint28", "tint29", "tint30", "tint31", + "bus-err", "ec7tie1-0", "ec7tie2-0", + "ec7tiovf-0", "ec7tie1-1", "ec7tie2-1", + "ec7tiovf-1"; + clocks = <&cpg CPG_MOD R9A07G043_IAX45_CLK>, + <&cpg CPG_MOD R9A07G043_IAX45_PCLK>; + clock-names = "clk", "pclk"; + power-domains = <&cpg>; + resets = <&cpg R9A07G043_IAX45_RESETN>; + }; + plic: interrupt-controller@12c00000 { compatible = "renesas,r9a07g043-plic", "andestech,nceplic100"; #interrupt-cells = <2>; diff --git a/arch/riscv/boot/dts/renesas/rzfive-smarc-som.dtsi b/arch/riscv/boot/dts/renesas/rzfive-smarc-som.dtsi index 433ab5c6a626..5e808242649e 100644 --- a/arch/riscv/boot/dts/renesas/rzfive-smarc-som.dtsi +++ b/arch/riscv/boot/dts/renesas/rzfive-smarc-som.dtsi @@ -6,19 +6,3 @@ */ #include <arm64/renesas/rzg2ul-smarc-som.dtsi> - -#if (!SW_ET0_EN_N) -ð0 { - phy0: ethernet-phy@7 { - /delete-property/ interrupt-parent; - /delete-property/ interrupts; - }; -}; -#endif - -ð1 { - phy1: ethernet-phy@7 { - /delete-property/ interrupt-parent; - /delete-property/ interrupts; - }; -}; diff --git a/arch/riscv/boot/dts/sophgo/cv1800b-milkv-duo.dts b/arch/riscv/boot/dts/sophgo/cv1800b-milkv-duo.dts index 3af9e34b3bc7..cd013588adc0 100644 --- a/arch/riscv/boot/dts/sophgo/cv1800b-milkv-duo.dts +++ b/arch/riscv/boot/dts/sophgo/cv1800b-milkv-duo.dts @@ -23,9 +23,15 @@ stdout-path = "serial0:115200n8"; }; - memory@80000000 { - device_type = "memory"; - reg = <0x80000000 0x3f40000>; + reserved-memory { + #address-cells = <1>; + #size-cells = <1>; + ranges; + + coprocessor_rtos: region@83f40000 { + reg = <0x83f40000 0xc0000>; + no-map; + }; }; }; @@ -33,6 +39,14 @@ clock-frequency = <25000000>; }; +&sdhci0 { + status = "okay"; + bus-width = <4>; + no-1-8-v; + no-mmc; + no-sdio; +}; + &uart0 { status = "okay"; }; diff --git a/arch/riscv/boot/dts/sophgo/cv1800b.dtsi b/arch/riscv/boot/dts/sophgo/cv1800b.dtsi index 165e9e320a8c..ec9530972ae2 100644 --- a/arch/riscv/boot/dts/sophgo/cv1800b.dtsi +++ b/arch/riscv/boot/dts/sophgo/cv1800b.dtsi @@ -7,6 +7,11 @@ / { compatible = "sophgo,cv1800b"; + + memory@80000000 { + device_type = "memory"; + reg = <0x80000000 0x4000000>; + }; }; &plic { @@ -16,3 +21,7 @@ &clint { compatible = "sophgo,cv1800b-clint", "thead,c900-clint"; }; + +&clk { + compatible = "sophgo,cv1800-clk"; +}; diff --git a/arch/riscv/boot/dts/sophgo/cv1812h.dtsi b/arch/riscv/boot/dts/sophgo/cv1812h.dtsi index 3e7a942f5c1a..7fa4c1e2d1da 100644 --- a/arch/riscv/boot/dts/sophgo/cv1812h.dtsi +++ b/arch/riscv/boot/dts/sophgo/cv1812h.dtsi @@ -22,3 +22,7 @@ &clint { compatible = "sophgo,cv1812h-clint", "thead,c900-clint"; }; + +&clk { + compatible = "sophgo,cv1810-clk"; +}; diff --git a/arch/riscv/boot/dts/sophgo/cv18xx.dtsi b/arch/riscv/boot/dts/sophgo/cv18xx.dtsi index 2d6f4a4b1e58..891932ae470f 100644 --- a/arch/riscv/boot/dts/sophgo/cv18xx.dtsi +++ b/arch/riscv/boot/dts/sophgo/cv18xx.dtsi @@ -4,6 +4,8 @@ * Copyright (C) 2023 Inochi Amaoto <inochiama@outlook.com> */ +#include <dt-bindings/clock/sophgo,cv1800.h> +#include <dt-bindings/gpio/gpio.h> #include <dt-bindings/interrupt-controller/irq.h> / { @@ -53,6 +55,12 @@ dma-noncoherent; ranges; + clk: clock-controller@3002000 { + reg = <0x03002000 0x1000>; + clocks = <&osc>; + #clock-cells = <1>; + }; + gpio0: gpio@3020000 { compatible = "snps,dw-apb-gpio"; reg = <0x3020000 0x1000>; @@ -125,11 +133,67 @@ }; }; + i2c0: i2c@4000000 { + compatible = "snps,designware-i2c"; + reg = <0x04000000 0x10000>; + #address-cells = <1>; + #size-cells = <0>; + clocks = <&clk CLK_I2C>, <&clk CLK_APB_I2C0>; + clock-names = "ref", "pclk"; + interrupts = <49 IRQ_TYPE_LEVEL_HIGH>; + status = "disabled"; + }; + + i2c1: i2c@4010000 { + compatible = "snps,designware-i2c"; + reg = <0x04010000 0x10000>; + #address-cells = <1>; + #size-cells = <0>; + clocks = <&clk CLK_I2C>, <&clk CLK_APB_I2C1>; + clock-names = "ref", "pclk"; + interrupts = <50 IRQ_TYPE_LEVEL_HIGH>; + status = "disabled"; + }; + + i2c2: i2c@4020000 { + compatible = "snps,designware-i2c"; + reg = <0x04020000 0x10000>; + #address-cells = <1>; + #size-cells = <0>; + clocks = <&clk CLK_I2C>, <&clk CLK_APB_I2C2>; + clock-names = "ref", "pclk"; + interrupts = <51 IRQ_TYPE_LEVEL_HIGH>; + status = "disabled"; + }; + + i2c3: i2c@4030000 { + compatible = "snps,designware-i2c"; + reg = <0x04030000 0x10000>; + #address-cells = <1>; + #size-cells = <0>; + clocks = <&clk CLK_I2C>, <&clk CLK_APB_I2C3>; + clock-names = "ref", "pclk"; + interrupts = <52 IRQ_TYPE_LEVEL_HIGH>; + status = "disabled"; + }; + + i2c4: i2c@4040000 { + compatible = "snps,designware-i2c"; + reg = <0x04040000 0x10000>; + #address-cells = <1>; + #size-cells = <0>; + clocks = <&clk CLK_I2C>, <&clk CLK_APB_I2C4>; + clock-names = "ref", "pclk"; + interrupts = <53 IRQ_TYPE_LEVEL_HIGH>; + status = "disabled"; + }; + uart0: serial@4140000 { compatible = "snps,dw-apb-uart"; reg = <0x04140000 0x100>; interrupts = <44 IRQ_TYPE_LEVEL_HIGH>; - clocks = <&osc>; + clocks = <&clk CLK_UART0>, <&clk CLK_APB_UART0>; + clock-names = "baudclk", "apb_pclk"; reg-shift = <2>; reg-io-width = <4>; status = "disabled"; @@ -139,7 +203,8 @@ compatible = "snps,dw-apb-uart"; reg = <0x04150000 0x100>; interrupts = <45 IRQ_TYPE_LEVEL_HIGH>; - clocks = <&osc>; + clocks = <&clk CLK_UART1>, <&clk CLK_APB_UART1>; + clock-names = "baudclk", "apb_pclk"; reg-shift = <2>; reg-io-width = <4>; status = "disabled"; @@ -149,7 +214,8 @@ compatible = "snps,dw-apb-uart"; reg = <0x04160000 0x100>; interrupts = <46 IRQ_TYPE_LEVEL_HIGH>; - clocks = <&osc>; + clocks = <&clk CLK_UART2>, <&clk CLK_APB_UART2>; + clock-names = "baudclk", "apb_pclk"; reg-shift = <2>; reg-io-width = <4>; status = "disabled"; @@ -159,22 +225,78 @@ compatible = "snps,dw-apb-uart"; reg = <0x04170000 0x100>; interrupts = <47 IRQ_TYPE_LEVEL_HIGH>; - clocks = <&osc>; + clocks = <&clk CLK_UART3>, <&clk CLK_APB_UART3>; + clock-names = "baudclk", "apb_pclk"; reg-shift = <2>; reg-io-width = <4>; status = "disabled"; }; + spi0: spi@4180000 { + compatible = "snps,dw-apb-ssi"; + reg = <0x04180000 0x10000>; + #address-cells = <1>; + #size-cells = <0>; + clocks = <&clk CLK_SPI>, <&clk CLK_APB_SPI0>; + clock-names = "ssi_clk", "pclk"; + interrupts = <54 IRQ_TYPE_LEVEL_HIGH>; + status = "disabled"; + }; + + spi1: spi@4190000 { + compatible = "snps,dw-apb-ssi"; + reg = <0x04190000 0x10000>; + #address-cells = <1>; + #size-cells = <0>; + clocks = <&clk CLK_SPI>, <&clk CLK_APB_SPI1>; + clock-names = "ssi_clk", "pclk"; + interrupts = <55 IRQ_TYPE_LEVEL_HIGH>; + status = "disabled"; + }; + + spi2: spi@41a0000 { + compatible = "snps,dw-apb-ssi"; + reg = <0x041a0000 0x10000>; + #address-cells = <1>; + #size-cells = <0>; + clocks = <&clk CLK_SPI>, <&clk CLK_APB_SPI2>; + clock-names = "ssi_clk", "pclk"; + interrupts = <56 IRQ_TYPE_LEVEL_HIGH>; + status = "disabled"; + }; + + spi3: spi@41b0000 { + compatible = "snps,dw-apb-ssi"; + reg = <0x041b0000 0x10000>; + #address-cells = <1>; + #size-cells = <0>; + clocks = <&clk CLK_SPI>, <&clk CLK_APB_SPI3>; + clock-names = "ssi_clk", "pclk"; + interrupts = <57 IRQ_TYPE_LEVEL_HIGH>; + status = "disabled"; + }; + uart4: serial@41c0000 { compatible = "snps,dw-apb-uart"; reg = <0x041c0000 0x100>; interrupts = <48 IRQ_TYPE_LEVEL_HIGH>; - clocks = <&osc>; + clocks = <&clk CLK_UART4>, <&clk CLK_APB_UART4>; + clock-names = "baudclk", "apb_pclk"; reg-shift = <2>; reg-io-width = <4>; status = "disabled"; }; + sdhci0: mmc@4310000 { + compatible = "sophgo,cv1800b-dwcmshc"; + reg = <0x4310000 0x1000>; + interrupts = <36 IRQ_TYPE_LEVEL_HIGH>; + clocks = <&clk CLK_AXI4_SD0>, + <&clk CLK_SD0>; + clock-names = "core", "bus"; + status = "disabled"; + }; + plic: interrupt-controller@70000000 { reg = <0x70000000 0x4000000>; interrupts-extended = <&cpu0_intc 11>, <&cpu0_intc 9>; diff --git a/arch/riscv/configs/defconfig b/arch/riscv/configs/defconfig index fc0ec2ee13bc..3cae018f9315 100644 --- a/arch/riscv/configs/defconfig +++ b/arch/riscv/configs/defconfig @@ -25,14 +25,15 @@ CONFIG_BLK_DEV_INITRD=y CONFIG_EXPERT=y # CONFIG_SYSFS_SYSCALL is not set CONFIG_PROFILING=y -CONFIG_SOC_MICROCHIP_POLARFIRE=y +CONFIG_ARCH_MICROCHIP=y CONFIG_ARCH_RENESAS=y -CONFIG_SOC_SIFIVE=y +CONFIG_ARCH_SIFIVE=y CONFIG_ARCH_SOPHGO=y CONFIG_SOC_STARFIVE=y CONFIG_ARCH_SUNXI=y CONFIG_ARCH_THEAD=y -CONFIG_SOC_VIRT=y +CONFIG_ARCH_VIRT=y +CONFIG_ARCH_CANAAN=y CONFIG_SMP=y CONFIG_HOTPLUG_CPU=y CONFIG_PM=y diff --git a/arch/riscv/configs/nommu_k210_defconfig b/arch/riscv/configs/nommu_k210_defconfig index 7e75200543f4..2552e78074a3 100644 --- a/arch/riscv/configs/nommu_k210_defconfig +++ b/arch/riscv/configs/nommu_k210_defconfig @@ -27,7 +27,8 @@ CONFIG_EXPERT=y CONFIG_SLUB=y CONFIG_SLUB_TINY=y # CONFIG_MMU is not set -CONFIG_SOC_CANAAN=y +CONFIG_ARCH_CANAAN=y +CONFIG_SOC_CANAAN_K210=y CONFIG_NONPORTABLE=y CONFIG_SMP=y CONFIG_NR_CPUS=2 diff --git a/arch/riscv/configs/nommu_k210_sdcard_defconfig b/arch/riscv/configs/nommu_k210_sdcard_defconfig index 0ba353e9ca71..8f67fb830585 100644 --- a/arch/riscv/configs/nommu_k210_sdcard_defconfig +++ b/arch/riscv/configs/nommu_k210_sdcard_defconfig @@ -19,7 +19,8 @@ CONFIG_EXPERT=y CONFIG_SLUB=y CONFIG_SLUB_TINY=y # CONFIG_MMU is not set -CONFIG_SOC_CANAAN=y +CONFIG_ARCH_CANAAN=y +CONFIG_SOC_CANAAN_K210=y CONFIG_NONPORTABLE=y CONFIG_SMP=y CONFIG_NR_CPUS=2 diff --git a/arch/riscv/configs/nommu_virt_defconfig b/arch/riscv/configs/nommu_virt_defconfig index b794e2f8144e..de8143d1f738 100644 --- a/arch/riscv/configs/nommu_virt_defconfig +++ b/arch/riscv/configs/nommu_virt_defconfig @@ -24,7 +24,7 @@ CONFIG_EXPERT=y CONFIG_SLUB=y CONFIG_SLUB_TINY=y # CONFIG_MMU is not set -CONFIG_SOC_VIRT=y +CONFIG_ARCH_VIRT=y CONFIG_NONPORTABLE=y CONFIG_SMP=y CONFIG_CMDLINE="root=/dev/vda rw earlycon=uart8250,mmio,0x10000000,115200n8 console=ttyS0" diff --git a/arch/riscv/errata/thead/errata.c b/arch/riscv/errata/thead/errata.c index b1c410bbc1ae..bf6a0a6318ee 100644 --- a/arch/riscv/errata/thead/errata.c +++ b/arch/riscv/errata/thead/errata.c @@ -19,20 +19,26 @@ #include <asm/patch.h> #include <asm/vendorid_list.h> -static bool errata_probe_pbmt(unsigned int stage, - unsigned long arch_id, unsigned long impid) +#define CSR_TH_SXSTATUS 0x5c0 +#define SXSTATUS_MAEE _AC(0x200000, UL) + +static bool errata_probe_mae(unsigned int stage, + unsigned long arch_id, unsigned long impid) { - if (!IS_ENABLED(CONFIG_ERRATA_THEAD_PBMT)) + if (!IS_ENABLED(CONFIG_ERRATA_THEAD_MAE)) return false; if (arch_id != 0 || impid != 0) return false; - if (stage == RISCV_ALTERNATIVES_EARLY_BOOT || - stage == RISCV_ALTERNATIVES_MODULE) - return true; + if (stage != RISCV_ALTERNATIVES_EARLY_BOOT && + stage != RISCV_ALTERNATIVES_MODULE) + return false; + + if (!(csr_read(CSR_TH_SXSTATUS) & SXSTATUS_MAEE)) + return false; - return false; + return true; } /* @@ -140,8 +146,8 @@ static u32 thead_errata_probe(unsigned int stage, { u32 cpu_req_errata = 0; - if (errata_probe_pbmt(stage, archid, impid)) - cpu_req_errata |= BIT(ERRATA_THEAD_PBMT); + if (errata_probe_mae(stage, archid, impid)) + cpu_req_errata |= BIT(ERRATA_THEAD_MAE); errata_probe_cmo(stage, archid, impid); diff --git a/arch/riscv/include/asm/errata_list.h b/arch/riscv/include/asm/errata_list.h index 1f2dbfb8a8bf..efd851e1b483 100644 --- a/arch/riscv/include/asm/errata_list.h +++ b/arch/riscv/include/asm/errata_list.h @@ -23,7 +23,7 @@ #endif #ifdef CONFIG_ERRATA_THEAD -#define ERRATA_THEAD_PBMT 0 +#define ERRATA_THEAD_MAE 0 #define ERRATA_THEAD_PMU 1 #define ERRATA_THEAD_NUMBER 2 #endif @@ -53,20 +53,20 @@ asm(ALTERNATIVE("sfence.vma %0", "sfence.vma", SIFIVE_VENDOR_ID, \ * in the default case. */ #define ALT_SVPBMT_SHIFT 61 -#define ALT_THEAD_PBMT_SHIFT 59 +#define ALT_THEAD_MAE_SHIFT 59 #define ALT_SVPBMT(_val, prot) \ asm(ALTERNATIVE_2("li %0, 0\t\nnop", \ "li %0, %1\t\nslli %0,%0,%3", 0, \ RISCV_ISA_EXT_SVPBMT, CONFIG_RISCV_ISA_SVPBMT, \ "li %0, %2\t\nslli %0,%0,%4", THEAD_VENDOR_ID, \ - ERRATA_THEAD_PBMT, CONFIG_ERRATA_THEAD_PBMT) \ + ERRATA_THEAD_MAE, CONFIG_ERRATA_THEAD_MAE) \ : "=r"(_val) \ : "I"(prot##_SVPBMT >> ALT_SVPBMT_SHIFT), \ - "I"(prot##_THEAD >> ALT_THEAD_PBMT_SHIFT), \ + "I"(prot##_THEAD >> ALT_THEAD_MAE_SHIFT), \ "I"(ALT_SVPBMT_SHIFT), \ - "I"(ALT_THEAD_PBMT_SHIFT)) + "I"(ALT_THEAD_MAE_SHIFT)) -#ifdef CONFIG_ERRATA_THEAD_PBMT +#ifdef CONFIG_ERRATA_THEAD_MAE /* * IO/NOCACHE memory types are handled together with svpbmt, * so on T-Head chips, check if no other memory type is set, @@ -83,11 +83,11 @@ asm volatile(ALTERNATIVE( \ "slli t3, t3, %3\n\t" \ "or %0, %0, t3\n\t" \ "2:", THEAD_VENDOR_ID, \ - ERRATA_THEAD_PBMT, CONFIG_ERRATA_THEAD_PBMT) \ + ERRATA_THEAD_MAE, CONFIG_ERRATA_THEAD_MAE) \ : "+r"(_val) \ - : "I"(_PAGE_MTMASK_THEAD >> ALT_THEAD_PBMT_SHIFT), \ - "I"(_PAGE_PMA_THEAD >> ALT_THEAD_PBMT_SHIFT), \ - "I"(ALT_THEAD_PBMT_SHIFT) \ + : "I"(_PAGE_MTMASK_THEAD >> ALT_THEAD_MAE_SHIFT), \ + "I"(_PAGE_PMA_THEAD >> ALT_THEAD_MAE_SHIFT), \ + "I"(ALT_THEAD_MAE_SHIFT) \ : "t3") #else #define ALT_THEAD_PMA(_val) diff --git a/arch/riscv/include/asm/page.h b/arch/riscv/include/asm/page.h index 2947423b5082..115ac98b8d72 100644 --- a/arch/riscv/include/asm/page.h +++ b/arch/riscv/include/asm/page.h @@ -89,7 +89,7 @@ typedef struct page *pgtable_t; #define PTE_FMT "%08lx" #endif -#ifdef CONFIG_64BIT +#if defined(CONFIG_64BIT) && defined(CONFIG_MMU) /* * We override this value as its generic definition uses __pa too early in * the boot process (before kernel_map.va_pa_offset is set). diff --git a/arch/riscv/include/asm/pgtable.h b/arch/riscv/include/asm/pgtable.h index 97fcde30e247..6afd6bb4882e 100644 --- a/arch/riscv/include/asm/pgtable.h +++ b/arch/riscv/include/asm/pgtable.h @@ -593,6 +593,12 @@ static inline int ptep_clear_flush_young(struct vm_area_struct *vma, return ptep_test_and_clear_young(vma, address, ptep); } +#define pgprot_nx pgprot_nx +static inline pgprot_t pgprot_nx(pgprot_t _prot) +{ + return __pgprot(pgprot_val(_prot) & ~_PAGE_EXEC); +} + #define pgprot_noncached pgprot_noncached static inline pgprot_t pgprot_noncached(pgprot_t _prot) { @@ -890,7 +896,7 @@ static inline pte_t pte_swp_clear_exclusive(pte_t pte) #define PAGE_SHARED __pgprot(0) #define PAGE_KERNEL __pgprot(0) #define swapper_pg_dir NULL -#define TASK_SIZE 0xffffffffUL +#define TASK_SIZE _AC(-1, UL) #define VMALLOC_START _AC(0, UL) #define VMALLOC_END TASK_SIZE diff --git a/arch/riscv/include/asm/syscall_wrapper.h b/arch/riscv/include/asm/syscall_wrapper.h index 980094c2e976..ac80216549ff 100644 --- a/arch/riscv/include/asm/syscall_wrapper.h +++ b/arch/riscv/include/asm/syscall_wrapper.h @@ -36,7 +36,8 @@ asmlinkage long __riscv_sys_ni_syscall(const struct pt_regs *); ulong) \ __attribute__((alias(__stringify(___se_##prefix##name)))); \ __diag_pop(); \ - static long noinline ___se_##prefix##name(__MAP(x,__SC_LONG,__VA_ARGS__)); \ + static long noinline ___se_##prefix##name(__MAP(x,__SC_LONG,__VA_ARGS__)) \ + __used; \ static long ___se_##prefix##name(__MAP(x,__SC_LONG,__VA_ARGS__)) #define SC_RISCV_REGS_TO_ARGS(x, ...) \ diff --git a/arch/riscv/include/asm/uaccess.h b/arch/riscv/include/asm/uaccess.h index ec0cab9fbddd..72ec1d9bd3f3 100644 --- a/arch/riscv/include/asm/uaccess.h +++ b/arch/riscv/include/asm/uaccess.h @@ -319,7 +319,7 @@ unsigned long __must_check clear_user(void __user *to, unsigned long n) #define __get_kernel_nofault(dst, src, type, err_label) \ do { \ - long __kr_err; \ + long __kr_err = 0; \ \ __get_user_nocheck(*((type *)(dst)), (type *)(src), __kr_err); \ if (unlikely(__kr_err)) \ @@ -328,7 +328,7 @@ do { \ #define __put_kernel_nofault(dst, src, type, err_label) \ do { \ - long __kr_err; \ + long __kr_err = 0; \ \ __put_user_nocheck(*((type *)(src)), (type *)(dst), __kr_err); \ if (unlikely(__kr_err)) \ diff --git a/arch/riscv/include/uapi/asm/auxvec.h b/arch/riscv/include/uapi/asm/auxvec.h index 10aaa83db89e..95050ebe9ad0 100644 --- a/arch/riscv/include/uapi/asm/auxvec.h +++ b/arch/riscv/include/uapi/asm/auxvec.h @@ -34,7 +34,7 @@ #define AT_L3_CACHEGEOMETRY 47 /* entries in ARCH_DLINFO */ -#define AT_VECTOR_SIZE_ARCH 9 +#define AT_VECTOR_SIZE_ARCH 10 #define AT_MINSIGSTKSZ 51 #endif /* _UAPI_ASM_RISCV_AUXVEC_H */ diff --git a/arch/riscv/include/uapi/asm/hwprobe.h b/arch/riscv/include/uapi/asm/hwprobe.h index 9f2a8e3ff204..2902f68dc913 100644 --- a/arch/riscv/include/uapi/asm/hwprobe.h +++ b/arch/riscv/include/uapi/asm/hwprobe.h @@ -54,7 +54,7 @@ struct riscv_hwprobe { #define RISCV_HWPROBE_EXT_ZFHMIN (1 << 28) #define RISCV_HWPROBE_EXT_ZIHINTNTL (1 << 29) #define RISCV_HWPROBE_EXT_ZVFH (1 << 30) -#define RISCV_HWPROBE_EXT_ZVFHMIN (1 << 31) +#define RISCV_HWPROBE_EXT_ZVFHMIN (1ULL << 31) #define RISCV_HWPROBE_EXT_ZFA (1ULL << 32) #define RISCV_HWPROBE_EXT_ZTSO (1ULL << 33) #define RISCV_HWPROBE_EXT_ZACAS (1ULL << 34) diff --git a/arch/riscv/kernel/compat_vdso/Makefile b/arch/riscv/kernel/compat_vdso/Makefile index 62fa393b2eb2..3df4cb788c1f 100644 --- a/arch/riscv/kernel/compat_vdso/Makefile +++ b/arch/riscv/kernel/compat_vdso/Makefile @@ -74,5 +74,5 @@ quiet_cmd_compat_vdsold = VDSOLD $@ rm $@.tmp # actual build commands -quiet_cmd_compat_vdsoas = VDSOAS $@ +quiet_cmd_compat_vdsoas = VDSOAS $@ cmd_compat_vdsoas = $(COMPAT_CC) $(a_flags) $(COMPAT_CC_FLAGS) -c -o $@ $< diff --git a/arch/riscv/kernel/patch.c b/arch/riscv/kernel/patch.c index 37e87fdcf6a0..30e12b310cab 100644 --- a/arch/riscv/kernel/patch.c +++ b/arch/riscv/kernel/patch.c @@ -80,6 +80,8 @@ static int __patch_insn_set(void *addr, u8 c, size_t len) */ lockdep_assert_held(&text_mutex); + preempt_disable(); + if (across_pages) patch_map(addr + PAGE_SIZE, FIX_TEXT_POKE1); @@ -92,6 +94,8 @@ static int __patch_insn_set(void *addr, u8 c, size_t len) if (across_pages) patch_unmap(FIX_TEXT_POKE1); + preempt_enable(); + return 0; } NOKPROBE_SYMBOL(__patch_insn_set); @@ -122,6 +126,8 @@ static int __patch_insn_write(void *addr, const void *insn, size_t len) if (!riscv_patch_in_stop_machine) lockdep_assert_held(&text_mutex); + preempt_disable(); + if (across_pages) patch_map(addr + PAGE_SIZE, FIX_TEXT_POKE1); @@ -134,6 +140,8 @@ static int __patch_insn_write(void *addr, const void *insn, size_t len) if (across_pages) patch_unmap(FIX_TEXT_POKE1); + preempt_enable(); + return ret; } NOKPROBE_SYMBOL(__patch_insn_write); diff --git a/arch/riscv/kernel/process.c b/arch/riscv/kernel/process.c index 92922dbd5b5c..e4bc61c4e58a 100644 --- a/arch/riscv/kernel/process.c +++ b/arch/riscv/kernel/process.c @@ -27,8 +27,6 @@ #include <asm/vector.h> #include <asm/cpufeature.h> -register unsigned long gp_in_global __asm__("gp"); - #if defined(CONFIG_STACKPROTECTOR) && !defined(CONFIG_STACKPROTECTOR_PER_TASK) #include <linux/stackprotector.h> unsigned long __stack_chk_guard __read_mostly; @@ -37,7 +35,7 @@ EXPORT_SYMBOL(__stack_chk_guard); extern asmlinkage void ret_from_fork(void); -void arch_cpu_idle(void) +void noinstr arch_cpu_idle(void) { cpu_do_idle(); } @@ -207,7 +205,6 @@ int copy_thread(struct task_struct *p, const struct kernel_clone_args *args) if (unlikely(args->fn)) { /* Kernel thread */ memset(childregs, 0, sizeof(struct pt_regs)); - childregs->gp = gp_in_global; /* Supervisor/Machine, irqs on: */ childregs->status = SR_PP | SR_PIE; diff --git a/arch/riscv/kernel/signal.c b/arch/riscv/kernel/signal.c index 501e66debf69..5a2edd7f027e 100644 --- a/arch/riscv/kernel/signal.c +++ b/arch/riscv/kernel/signal.c @@ -119,6 +119,13 @@ static long __restore_v_state(struct pt_regs *regs, void __user *sc_vec) struct __sc_riscv_v_state __user *state = sc_vec; void __user *datap; + /* + * Mark the vstate as clean prior performing the actual copy, + * to avoid getting the vstate incorrectly clobbered by the + * discarded vector state. + */ + riscv_v_vstate_set_restore(current, regs); + /* Copy everything of __sc_riscv_v_state except datap. */ err = __copy_from_user(¤t->thread.vstate, &state->v_state, offsetof(struct __riscv_v_ext_state, datap)); @@ -133,13 +140,7 @@ static long __restore_v_state(struct pt_regs *regs, void __user *sc_vec) * Copy the whole vector content from user space datap. Use * copy_from_user to prevent information leak. */ - err = copy_from_user(current->thread.vstate.datap, datap, riscv_v_vsize); - if (unlikely(err)) - return err; - - riscv_v_vstate_set_restore(current, regs); - - return err; + return copy_from_user(current->thread.vstate.datap, datap, riscv_v_vsize); } #else #define save_v_state(task, regs) (0) diff --git a/arch/riscv/kernel/traps.c b/arch/riscv/kernel/traps.c index 868d6280cf66..05a16b1f0aee 100644 --- a/arch/riscv/kernel/traps.c +++ b/arch/riscv/kernel/traps.c @@ -122,7 +122,7 @@ void do_trap(struct pt_regs *regs, int signo, int code, unsigned long addr) print_vma_addr(KERN_CONT " in ", instruction_pointer(regs)); pr_cont("\n"); __show_regs(regs); - dump_instr(KERN_EMERG, regs); + dump_instr(KERN_INFO, regs); } force_sig_fault(signo, code, (void __user *)addr); diff --git a/arch/riscv/kernel/vdso/Makefile b/arch/riscv/kernel/vdso/Makefile index 9b517fe1b8a8..272c431ac5b9 100644 --- a/arch/riscv/kernel/vdso/Makefile +++ b/arch/riscv/kernel/vdso/Makefile @@ -37,6 +37,7 @@ endif # Disable -pg to prevent insert call site CFLAGS_REMOVE_vgettimeofday.o = $(CC_FLAGS_FTRACE) $(CC_FLAGS_SCS) +CFLAGS_REMOVE_hwprobe.o = $(CC_FLAGS_FTRACE) $(CC_FLAGS_SCS) # Disable profiling and instrumentation for VDSO code GCOV_PROFILE := n diff --git a/arch/riscv/kvm/aia_aplic.c b/arch/riscv/kvm/aia_aplic.c index 39e72aa016a4..b467ba5ed910 100644 --- a/arch/riscv/kvm/aia_aplic.c +++ b/arch/riscv/kvm/aia_aplic.c @@ -137,11 +137,21 @@ static void aplic_write_pending(struct aplic *aplic, u32 irq, bool pending) raw_spin_lock_irqsave(&irqd->lock, flags); sm = irqd->sourcecfg & APLIC_SOURCECFG_SM_MASK; - if (!pending && - ((sm == APLIC_SOURCECFG_SM_LEVEL_HIGH) || - (sm == APLIC_SOURCECFG_SM_LEVEL_LOW))) + if (sm == APLIC_SOURCECFG_SM_INACTIVE) goto skip_write_pending; + if (sm == APLIC_SOURCECFG_SM_LEVEL_HIGH || + sm == APLIC_SOURCECFG_SM_LEVEL_LOW) { + if (!pending) + goto skip_write_pending; + if ((irqd->state & APLIC_IRQ_STATE_INPUT) && + sm == APLIC_SOURCECFG_SM_LEVEL_LOW) + goto skip_write_pending; + if (!(irqd->state & APLIC_IRQ_STATE_INPUT) && + sm == APLIC_SOURCECFG_SM_LEVEL_HIGH) + goto skip_write_pending; + } + if (pending) irqd->state |= APLIC_IRQ_STATE_PENDING; else @@ -187,16 +197,31 @@ static void aplic_write_enabled(struct aplic *aplic, u32 irq, bool enabled) static bool aplic_read_input(struct aplic *aplic, u32 irq) { - bool ret; - unsigned long flags; + u32 sourcecfg, sm, raw_input, irq_inverted; struct aplic_irq *irqd; + unsigned long flags; + bool ret = false; if (!irq || aplic->nr_irqs <= irq) return false; irqd = &aplic->irqs[irq]; raw_spin_lock_irqsave(&irqd->lock, flags); - ret = (irqd->state & APLIC_IRQ_STATE_INPUT) ? true : false; + + sourcecfg = irqd->sourcecfg; + if (sourcecfg & APLIC_SOURCECFG_D) + goto skip; + + sm = sourcecfg & APLIC_SOURCECFG_SM_MASK; + if (sm == APLIC_SOURCECFG_SM_INACTIVE) + goto skip; + + raw_input = (irqd->state & APLIC_IRQ_STATE_INPUT) ? 1 : 0; + irq_inverted = (sm == APLIC_SOURCECFG_SM_LEVEL_LOW || + sm == APLIC_SOURCECFG_SM_EDGE_FALL) ? 1 : 0; + ret = !!(raw_input ^ irq_inverted); + +skip: raw_spin_unlock_irqrestore(&irqd->lock, flags); return ret; diff --git a/arch/riscv/kvm/vcpu_onereg.c b/arch/riscv/kvm/vcpu_onereg.c index f4a6124d25c9..994adc26db4b 100644 --- a/arch/riscv/kvm/vcpu_onereg.c +++ b/arch/riscv/kvm/vcpu_onereg.c @@ -986,7 +986,7 @@ static int copy_isa_ext_reg_indices(const struct kvm_vcpu *vcpu, static inline unsigned long num_isa_ext_regs(const struct kvm_vcpu *vcpu) { - return copy_isa_ext_reg_indices(vcpu, NULL);; + return copy_isa_ext_reg_indices(vcpu, NULL); } static int copy_sbi_ext_reg_indices(struct kvm_vcpu *vcpu, u64 __user *uindices) diff --git a/arch/riscv/mm/init.c b/arch/riscv/mm/init.c index fe8e159394d8..968761843203 100644 --- a/arch/riscv/mm/init.c +++ b/arch/riscv/mm/init.c @@ -231,7 +231,7 @@ static void __init setup_bootmem(void) * In 64-bit, any use of __va/__pa before this point is wrong as we * did not know the start of DRAM before. */ - if (IS_ENABLED(CONFIG_64BIT)) + if (IS_ENABLED(CONFIG_64BIT) && IS_ENABLED(CONFIG_MMU)) kernel_map.va_pa_offset = PAGE_OFFSET - phys_ram_base; /* diff --git a/arch/riscv/mm/tlbflush.c b/arch/riscv/mm/tlbflush.c index 893566e004b7..07d743f87b3f 100644 --- a/arch/riscv/mm/tlbflush.c +++ b/arch/riscv/mm/tlbflush.c @@ -99,7 +99,7 @@ static void __ipi_flush_tlb_range_asid(void *info) local_flush_tlb_range_asid(d->start, d->size, d->stride, d->asid); } -static void __flush_tlb_range(struct cpumask *cmask, unsigned long asid, +static void __flush_tlb_range(const struct cpumask *cmask, unsigned long asid, unsigned long start, unsigned long size, unsigned long stride) { @@ -200,7 +200,7 @@ void flush_tlb_range(struct vm_area_struct *vma, unsigned long start, void flush_tlb_kernel_range(unsigned long start, unsigned long end) { - __flush_tlb_range((struct cpumask *)cpu_online_mask, FLUSH_TLB_NO_ASID, + __flush_tlb_range(cpu_online_mask, FLUSH_TLB_NO_ASID, start, end - start, PAGE_SIZE); } diff --git a/arch/riscv/net/bpf_jit_comp64.c b/arch/riscv/net/bpf_jit_comp64.c index aac190085472..ec9d692838fc 100644 --- a/arch/riscv/net/bpf_jit_comp64.c +++ b/arch/riscv/net/bpf_jit_comp64.c @@ -722,6 +722,9 @@ static int invoke_bpf_prog(struct bpf_tramp_link *l, int args_off, int retval_of if (ret) return ret; + /* store prog start time */ + emit_mv(RV_REG_S1, RV_REG_A0, ctx); + /* if (__bpf_prog_enter(prog) == 0) * goto skip_exec_of_prog; */ @@ -729,9 +732,6 @@ static int invoke_bpf_prog(struct bpf_tramp_link *l, int args_off, int retval_of /* nop reserved for conditional jump */ emit(rv_nop(), ctx); - /* store prog start time */ - emit_mv(RV_REG_S1, RV_REG_A0, ctx); - /* arg1: &args_off */ emit_addi(RV_REG_A0, RV_REG_FP, -args_off, ctx); if (!p->jited) @@ -1463,6 +1463,22 @@ int bpf_jit_emit_insn(const struct bpf_insn *insn, struct rv_jit_context *ctx, if (ret < 0) return ret; + if (insn->src_reg == BPF_PSEUDO_KFUNC_CALL) { + const struct btf_func_model *fm; + int idx; + + fm = bpf_jit_find_kfunc_model(ctx->prog, insn); + if (!fm) + return -EINVAL; + + for (idx = 0; idx < fm->nr_args; idx++) { + u8 reg = bpf_to_rv_reg(BPF_REG_1 + idx, ctx); + + if (fm->arg_size[idx] == sizeof(int)) + emit_sextw(reg, reg, ctx); + } + } + ret = emit_call(addr, fixed_addr, ctx); if (ret) return ret; |