diff options
Diffstat (limited to 'arch/mips')
81 files changed, 431 insertions, 418 deletions
diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig index 7074b2215f36..08c10c518f83 100644 --- a/arch/mips/Kconfig +++ b/arch/mips/Kconfig @@ -22,6 +22,11 @@ config MIPS select GENERIC_CPU_AUTOPROBE select GENERIC_IRQ_PROBE select GENERIC_IRQ_SHOW + select GENERIC_LIB_ASHLDI3 + select GENERIC_LIB_ASHRDI3 + select GENERIC_LIB_CMPDI2 + select GENERIC_LIB_LSHRDI3 + select GENERIC_LIB_UCMPDI2 select GENERIC_PCI_IOMAP select GENERIC_SCHED_CLOCK if !CAVIUM_OCTEON_SOC select GENERIC_SMP_IDLE_THREAD @@ -36,7 +41,6 @@ config MIPS select HAVE_ARCH_TRANSPARENT_HUGEPAGE if CPU_SUPPORTS_HUGEPAGES && 64BIT select HAVE_CBPF_JIT if (!64BIT && !CPU_MICROMIPS) select HAVE_EBPF_JIT if (64BIT && !CPU_MICROMIPS) - select HAVE_CC_STACKPROTECTOR select HAVE_CONTEXT_TRACKING select HAVE_COPY_THREAD_TLS select HAVE_C_RECORDMCOUNT @@ -61,6 +65,8 @@ config MIPS select HAVE_OPROFILE select HAVE_PERF_EVENTS select HAVE_REGS_AND_STACK_ACCESS_API + select HAVE_RSEQ + select HAVE_STACKPROTECTOR select HAVE_SYSCALL_TRACEPOINTS select HAVE_VIRT_CPU_ACCOUNTING_GEN if 64BIT || !SMP select IRQ_FORCED_THREADING diff --git a/arch/mips/alchemy/board-gpr.c b/arch/mips/alchemy/board-gpr.c index 4e79dbd54a33..fa75d75b5ba9 100644 --- a/arch/mips/alchemy/board-gpr.c +++ b/arch/mips/alchemy/board-gpr.c @@ -29,7 +29,7 @@ #include <linux/leds.h> #include <linux/gpio.h> #include <linux/i2c.h> -#include <linux/i2c-gpio.h> +#include <linux/platform_data/i2c-gpio.h> #include <linux/gpio/machine.h> #include <asm/bootinfo.h> #include <asm/idle.h> diff --git a/arch/mips/alchemy/common/clock.c b/arch/mips/alchemy/common/clock.c index 6b6f6851df92..d129475fd40d 100644 --- a/arch/mips/alchemy/common/clock.c +++ b/arch/mips/alchemy/common/clock.c @@ -985,7 +985,7 @@ static int __init alchemy_clk_setup_imux(int ctype) return -ENODEV; } - a = kzalloc((sizeof(*a)) * 6, GFP_KERNEL); + a = kcalloc(6, sizeof(*a), GFP_KERNEL); if (!a) return -ENOMEM; diff --git a/arch/mips/alchemy/common/dbdma.c b/arch/mips/alchemy/common/dbdma.c index fc482d900ddd..4ca2c28878e0 100644 --- a/arch/mips/alchemy/common/dbdma.c +++ b/arch/mips/alchemy/common/dbdma.c @@ -411,8 +411,8 @@ u32 au1xxx_dbdma_ring_alloc(u32 chanid, int entries) * and if we try that first we are likely to not waste larger * slabs of memory. */ - desc_base = (u32)kmalloc(entries * sizeof(au1x_ddma_desc_t), - GFP_KERNEL|GFP_DMA); + desc_base = (u32)kmalloc_array(entries, sizeof(au1x_ddma_desc_t), + GFP_KERNEL|GFP_DMA); if (desc_base == 0) return 0; @@ -1050,7 +1050,7 @@ static int __init dbdma_setup(unsigned int irq, dbdev_tab_t *idtable) { int ret; - dbdev_tab = kzalloc(sizeof(dbdev_tab_t) * DBDEV_TAB_SIZE, GFP_KERNEL); + dbdev_tab = kcalloc(DBDEV_TAB_SIZE, sizeof(dbdev_tab_t), GFP_KERNEL); if (!dbdev_tab) return -ENOMEM; diff --git a/arch/mips/alchemy/common/platform.c b/arch/mips/alchemy/common/platform.c index d77a64f4c78b..1454d9f6ab2d 100644 --- a/arch/mips/alchemy/common/platform.c +++ b/arch/mips/alchemy/common/platform.c @@ -115,7 +115,7 @@ static void __init alchemy_setup_uarts(int ctype) uartclk = clk_get_rate(clk); clk_put(clk); - ports = kzalloc(s * (c + 1), GFP_KERNEL); + ports = kcalloc(s, (c + 1), GFP_KERNEL); if (!ports) { printk(KERN_INFO "Alchemy: no memory for UART data\n"); return; @@ -198,7 +198,7 @@ static unsigned long alchemy_ehci_data[][2] __initdata = { static int __init _new_usbres(struct resource **r, struct platform_device **d) { - *r = kzalloc(sizeof(struct resource) * 2, GFP_KERNEL); + *r = kcalloc(2, sizeof(struct resource), GFP_KERNEL); if (!*r) return -ENOMEM; *d = kzalloc(sizeof(struct platform_device), GFP_KERNEL); diff --git a/arch/mips/alchemy/devboards/platform.c b/arch/mips/alchemy/devboards/platform.c index 4640edab207c..203854ddd1bb 100644 --- a/arch/mips/alchemy/devboards/platform.c +++ b/arch/mips/alchemy/devboards/platform.c @@ -103,7 +103,7 @@ int __init db1x_register_pcmcia_socket(phys_addr_t pcmcia_attr_start, if (stschg_irq) cnt++; - sr = kzalloc(sizeof(struct resource) * cnt, GFP_KERNEL); + sr = kcalloc(cnt, sizeof(struct resource), GFP_KERNEL); if (!sr) return -ENOMEM; @@ -178,7 +178,7 @@ int __init db1x_register_norflash(unsigned long size, int width, return -EINVAL; ret = -ENOMEM; - parts = kzalloc(sizeof(struct mtd_partition) * 5, GFP_KERNEL); + parts = kcalloc(5, sizeof(struct mtd_partition), GFP_KERNEL); if (!parts) goto out; diff --git a/arch/mips/ath79/common.c b/arch/mips/ath79/common.c index 10a405d593df..c782b10ddf50 100644 --- a/arch/mips/ath79/common.c +++ b/arch/mips/ath79/common.c @@ -58,7 +58,7 @@ EXPORT_SYMBOL_GPL(ath79_ddr_ctrl_init); void ath79_ddr_wb_flush(u32 reg) { - void __iomem *flush_reg = ath79_ddr_wb_flush_base + reg; + void __iomem *flush_reg = ath79_ddr_wb_flush_base + (reg * 4); /* Flush the DDR write buffer. */ __raw_writel(0x1, flush_reg); diff --git a/arch/mips/ath79/mach-pb44.c b/arch/mips/ath79/mach-pb44.c index 6b2c6f3baefa..75fb96ca61db 100644 --- a/arch/mips/ath79/mach-pb44.c +++ b/arch/mips/ath79/mach-pb44.c @@ -34,7 +34,7 @@ #define PB44_KEYS_DEBOUNCE_INTERVAL (3 * PB44_KEYS_POLL_INTERVAL) static struct gpiod_lookup_table pb44_i2c_gpiod_table = { - .dev_id = "i2c-gpio", + .dev_id = "i2c-gpio.0", .table = { GPIO_LOOKUP_IDX("ath79-gpio", PB44_GPIO_I2C_SDA, NULL, 0, GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN), diff --git a/arch/mips/bcm47xx/board.c b/arch/mips/bcm47xx/board.c index edfaef0d73a4..a80910d2738c 100644 --- a/arch/mips/bcm47xx/board.c +++ b/arch/mips/bcm47xx/board.c @@ -172,6 +172,8 @@ struct bcm47xx_board_type_list1 bcm47xx_board_list_board_id[] __initconst = { {{BCM47XX_BOARD_NETGEAR_WNDR4000, "Netgear WNDR4000"}, "U12H181T00_NETGEAR"}, {{BCM47XX_BOARD_NETGEAR_WNDR4500V1, "Netgear WNDR4500 V1"}, "U12H189T00_NETGEAR"}, {{BCM47XX_BOARD_NETGEAR_WNDR4500V2, "Netgear WNDR4500 V2"}, "U12H224T00_NETGEAR"}, + {{BCM47XX_BOARD_NETGEAR_WNR1000_V3, "Netgear WNR1000 V3"}, "U12H139T00_NETGEAR"}, + {{BCM47XX_BOARD_NETGEAR_WNR1000_V3, "Netgear WNR1000 V3"}, "U12H139T50_NETGEAR"}, {{BCM47XX_BOARD_NETGEAR_WNR2000, "Netgear WNR2000"}, "U12H114T00_NETGEAR"}, {{BCM47XX_BOARD_NETGEAR_WNR3500L, "Netgear WNR3500L"}, "U12H136T99_NETGEAR"}, {{BCM47XX_BOARD_NETGEAR_WNR3500U, "Netgear WNR3500U"}, "U12H136T00_NETGEAR"}, diff --git a/arch/mips/bcm47xx/buttons.c b/arch/mips/bcm47xx/buttons.c index 88d400d256c4..977990a609ba 100644 --- a/arch/mips/bcm47xx/buttons.c +++ b/arch/mips/bcm47xx/buttons.c @@ -412,6 +412,12 @@ bcm47xx_buttons_netgear_wndr4500v1[] __initconst = { }; static const struct gpio_keys_button +bcm47xx_buttons_netgear_wnr1000_v3[] __initconst = { + BCM47XX_GPIO_KEY(2, KEY_WPS_BUTTON), + BCM47XX_GPIO_KEY(3, KEY_RESTART), +}; + +static const struct gpio_keys_button bcm47xx_buttons_netgear_wnr3500lv1[] __initconst = { BCM47XX_GPIO_KEY(4, KEY_RESTART), BCM47XX_GPIO_KEY(6, KEY_WPS_BUTTON), @@ -670,6 +676,9 @@ int __init bcm47xx_buttons_register(void) case BCM47XX_BOARD_NETGEAR_WNDR4500V1: err = bcm47xx_copy_bdata(bcm47xx_buttons_netgear_wndr4500v1); break; + case BCM47XX_BOARD_NETGEAR_WNR1000_V3: + err = bcm47xx_copy_bdata(bcm47xx_buttons_netgear_wnr1000_v3); + break; case BCM47XX_BOARD_NETGEAR_WNR3500L: err = bcm47xx_copy_bdata(bcm47xx_buttons_netgear_wnr3500lv1); break; diff --git a/arch/mips/bcm47xx/leds.c b/arch/mips/bcm47xx/leds.c index 34a7b3fbdfd9..d85fcdac8bf0 100644 --- a/arch/mips/bcm47xx/leds.c +++ b/arch/mips/bcm47xx/leds.c @@ -498,6 +498,12 @@ bcm47xx_leds_netgear_wndr4500v1[] __initconst = { }; static const struct gpio_led +bcm47xx_leds_netgear_wnr1000_v3[] __initconst = { + BCM47XX_GPIO_LED(0, "blue", "wlan", 0, LEDS_GPIO_DEFSTATE_OFF), + BCM47XX_GPIO_LED(1, "green", "wps", 0, LEDS_GPIO_DEFSTATE_OFF), +}; + +static const struct gpio_led bcm47xx_leds_netgear_wnr3500lv1[] __initconst = { BCM47XX_GPIO_LED(0, "blue", "wlan", 1, LEDS_GPIO_DEFSTATE_OFF), BCM47XX_GPIO_LED(1, "green", "wps", 1, LEDS_GPIO_DEFSTATE_OFF), @@ -532,7 +538,7 @@ bcm47xx_leds_simpletech_simpleshare[] __initconst = { * Init **************************************************/ -static struct gpio_led_platform_data bcm47xx_leds_pdata; +static struct gpio_led_platform_data bcm47xx_leds_pdata __initdata; #define bcm47xx_set_pdata(dev_leds) do { \ bcm47xx_leds_pdata.leds = dev_leds; \ @@ -758,6 +764,9 @@ void __init bcm47xx_leds_register(void) case BCM47XX_BOARD_NETGEAR_WNDR4500V1: bcm47xx_set_pdata(bcm47xx_leds_netgear_wndr4500v1); break; + case BCM47XX_BOARD_NETGEAR_WNR1000_V3: + bcm47xx_set_pdata(bcm47xx_leds_netgear_wnr1000_v3); + break; case BCM47XX_BOARD_NETGEAR_WNR3500L: bcm47xx_set_pdata(bcm47xx_leds_netgear_wnr3500lv1); break; diff --git a/arch/mips/bcm47xx/setup.c b/arch/mips/bcm47xx/setup.c index 6054d49e608e..8c9cbf13d32a 100644 --- a/arch/mips/bcm47xx/setup.c +++ b/arch/mips/bcm47xx/setup.c @@ -212,6 +212,12 @@ static int __init bcm47xx_cpu_fixes(void) */ if (bcm47xx_bus.bcma.bus.chipinfo.id == BCMA_CHIP_ID_BCM4706) cpu_wait = NULL; + + /* + * BCM47XX Erratum "R10: PCIe Transactions Periodically Fail" + * Enable ExternalSync for sync instruction to take effect + */ + set_c0_config7(MIPS_CONF7_ES); break; #endif } diff --git a/arch/mips/bmips/dma.c b/arch/mips/bmips/dma.c index 04790f4e1805..6dec30842b2f 100644 --- a/arch/mips/bmips/dma.c +++ b/arch/mips/bmips/dma.c @@ -94,7 +94,7 @@ static int __init bmips_init_dma_ranges(void) goto out_bad; /* add a dummy (zero) entry at the end as a sentinel */ - bmips_dma_ranges = kzalloc(sizeof(struct bmips_dma_range) * (len + 1), + bmips_dma_ranges = kcalloc(len + 1, sizeof(struct bmips_dma_range), GFP_KERNEL); if (!bmips_dma_ranges) goto out_bad; diff --git a/arch/mips/boot/compressed/Makefile b/arch/mips/boot/compressed/Makefile index adce180f3ee4..abe77add8789 100644 --- a/arch/mips/boot/compressed/Makefile +++ b/arch/mips/boot/compressed/Makefile @@ -46,10 +46,13 @@ $(obj)/uart-ath79.c: $(srctree)/arch/mips/ath79/early_printk.c vmlinuzobjs-$(CONFIG_KERNEL_XZ) += $(obj)/ashldi3.o $(obj)/bswapsi.o -extra-y += ashldi3.c bswapsi.c -$(obj)/ashldi3.o $(obj)/bswapsi.o: KBUILD_CFLAGS += -I$(srctree)/arch/mips/lib -$(obj)/ashldi3.c $(obj)/bswapsi.c: $(obj)/%.c: $(srctree)/arch/mips/lib/%.c - $(call cmd,shipped) +extra-y += ashldi3.c +$(obj)/ashldi3.c: $(obj)/%.c: $(srctree)/lib/%.c FORCE + $(call if_changed,shipped) + +extra-y += bswapsi.c +$(obj)/bswapsi.c: $(obj)/%.c: $(srctree)/arch/mips/lib/%.c FORCE + $(call if_changed,shipped) targets := $(notdir $(vmlinuzobjs-y)) diff --git a/arch/mips/boot/dts/brcm/Makefile b/arch/mips/boot/dts/brcm/Makefile index d8787c9a499e..d85f446cc0ce 100644 --- a/arch/mips/boot/dts/brcm/Makefile +++ b/arch/mips/boot/dts/brcm/Makefile @@ -34,4 +34,4 @@ dtb-$(CONFIG_DT_NONE) += \ bcm97425svmb.dtb \ bcm97435svmb.dtb -obj-y += $(patsubst %.dtb, %.dtb.o, $(dtb-y)) +obj-$(CONFIG_BUILTIN_DTB) += $(addsuffix .o, $(dtb-y)) diff --git a/arch/mips/boot/dts/cavium-octeon/Makefile b/arch/mips/boot/dts/cavium-octeon/Makefile index 24a8efcd7b03..17aef35f311b 100644 --- a/arch/mips/boot/dts/cavium-octeon/Makefile +++ b/arch/mips/boot/dts/cavium-octeon/Makefile @@ -1,4 +1,4 @@ # SPDX-License-Identifier: GPL-2.0 dtb-$(CONFIG_CAVIUM_OCTEON_SOC) += octeon_3xxx.dtb octeon_68xx.dtb -obj-y += $(patsubst %.dtb, %.dtb.o, $(dtb-y)) +obj-$(CONFIG_BUILTIN_DTB) += $(addsuffix .o, $(dtb-y)) diff --git a/arch/mips/boot/dts/ingenic/Makefile b/arch/mips/boot/dts/ingenic/Makefile index 5b1361a89e02..9cc48441eb71 100644 --- a/arch/mips/boot/dts/ingenic/Makefile +++ b/arch/mips/boot/dts/ingenic/Makefile @@ -3,4 +3,4 @@ dtb-$(CONFIG_JZ4740_QI_LB60) += qi_lb60.dtb dtb-$(CONFIG_JZ4770_GCW0) += gcw0.dtb dtb-$(CONFIG_JZ4780_CI20) += ci20.dtb -obj-y += $(patsubst %.dtb, %.dtb.o, $(dtb-y)) +obj-$(CONFIG_BUILTIN_DTB) += $(addsuffix .o, $(dtb-y)) diff --git a/arch/mips/boot/dts/ingenic/jz4740.dtsi b/arch/mips/boot/dts/ingenic/jz4740.dtsi index cd5185bb90ae..26c6b561d6f7 100644 --- a/arch/mips/boot/dts/ingenic/jz4740.dtsi +++ b/arch/mips/boot/dts/ingenic/jz4740.dtsi @@ -45,6 +45,14 @@ #clock-cells = <1>; }; + watchdog: watchdog@10002000 { + compatible = "ingenic,jz4740-watchdog"; + reg = <0x10002000 0x10>; + + clocks = <&cgu JZ4740_CLK_RTC>; + clock-names = "rtc"; + }; + rtc_dev: rtc@10003000 { compatible = "ingenic,jz4740-rtc"; reg = <0x10003000 0x40>; diff --git a/arch/mips/boot/dts/ingenic/jz4780.dtsi b/arch/mips/boot/dts/ingenic/jz4780.dtsi index b72e53bb7292..aa4e8f75ff5d 100644 --- a/arch/mips/boot/dts/ingenic/jz4780.dtsi +++ b/arch/mips/boot/dts/ingenic/jz4780.dtsi @@ -222,7 +222,10 @@ watchdog: watchdog@10002000 { compatible = "ingenic,jz4780-watchdog"; - reg = <0x10002000 0x100>; + reg = <0x10002000 0x10>; + + clocks = <&cgu JZ4780_CLK_RTCLK>; + clock-names = "rtc"; }; nemc: nemc@13410000 { diff --git a/arch/mips/boot/dts/lantiq/Makefile b/arch/mips/boot/dts/lantiq/Makefile index 51ab9c1dff42..f5dfc06242b9 100644 --- a/arch/mips/boot/dts/lantiq/Makefile +++ b/arch/mips/boot/dts/lantiq/Makefile @@ -1,4 +1,4 @@ # SPDX-License-Identifier: GPL-2.0 dtb-$(CONFIG_DT_EASY50712) += easy50712.dtb -obj-y += $(patsubst %.dtb, %.dtb.o, $(dtb-y)) +obj-$(CONFIG_BUILTIN_DTB) += $(addsuffix .o, $(dtb-y)) diff --git a/arch/mips/boot/dts/mscc/Makefile b/arch/mips/boot/dts/mscc/Makefile index c51164537c02..3c6aed9f5439 100644 --- a/arch/mips/boot/dts/mscc/Makefile +++ b/arch/mips/boot/dts/mscc/Makefile @@ -1,3 +1,3 @@ dtb-$(CONFIG_LEGACY_BOARD_OCELOT) += ocelot_pcb123.dtb -obj-y += $(patsubst %.dtb, %.dtb.o, $(dtb-y)) +obj-$(CONFIG_BUILTIN_DTB) += $(addsuffix .o, $(dtb-y)) diff --git a/arch/mips/boot/dts/mscc/ocelot.dtsi b/arch/mips/boot/dts/mscc/ocelot.dtsi index dd239cab2f9d..4f33dbc67348 100644 --- a/arch/mips/boot/dts/mscc/ocelot.dtsi +++ b/arch/mips/boot/dts/mscc/ocelot.dtsi @@ -91,6 +91,72 @@ status = "disabled"; }; + switch@1010000 { + compatible = "mscc,vsc7514-switch"; + reg = <0x1010000 0x10000>, + <0x1030000 0x10000>, + <0x1080000 0x100>, + <0x10d0000 0x10000>, + <0x11e0000 0x100>, + <0x11f0000 0x100>, + <0x1200000 0x100>, + <0x1210000 0x100>, + <0x1220000 0x100>, + <0x1230000 0x100>, + <0x1240000 0x100>, + <0x1250000 0x100>, + <0x1260000 0x100>, + <0x1270000 0x100>, + <0x1280000 0x100>, + <0x1800000 0x80000>, + <0x1880000 0x10000>; + reg-names = "sys", "rew", "qs", "hsio", "port0", + "port1", "port2", "port3", "port4", "port5", + "port6", "port7", "port8", "port9", "port10", + "qsys", "ana"; + interrupts = <21 22>; + interrupt-names = "xtr", "inj"; + + ethernet-ports { + #address-cells = <1>; + #size-cells = <0>; + + port0: port@0 { + reg = <0>; + }; + port1: port@1 { + reg = <1>; + }; + port2: port@2 { + reg = <2>; + }; + port3: port@3 { + reg = <3>; + }; + port4: port@4 { + reg = <4>; + }; + port5: port@5 { + reg = <5>; + }; + port6: port@6 { + reg = <6>; + }; + port7: port@7 { + reg = <7>; + }; + port8: port@8 { + reg = <8>; + }; + port9: port@9 { + reg = <9>; + }; + port10: port@10 { + reg = <10>; + }; + }; + }; + reset@1070008 { compatible = "mscc,ocelot-chip-reset"; reg = <0x1070008 0x4>; @@ -113,5 +179,27 @@ function = "uart2"; }; }; + + mdio0: mdio@107009c { + #address-cells = <1>; + #size-cells = <0>; + compatible = "mscc,ocelot-miim"; + reg = <0x107009c 0x36>, <0x10700f0 0x8>; + interrupts = <14>; + status = "disabled"; + + phy0: ethernet-phy@0 { + reg = <0>; + }; + phy1: ethernet-phy@1 { + reg = <1>; + }; + phy2: ethernet-phy@2 { + reg = <2>; + }; + phy3: ethernet-phy@3 { + reg = <3>; + }; + }; }; }; diff --git a/arch/mips/boot/dts/mscc/ocelot_pcb123.dts b/arch/mips/boot/dts/mscc/ocelot_pcb123.dts index 29d6414f8886..4ccd65379059 100644 --- a/arch/mips/boot/dts/mscc/ocelot_pcb123.dts +++ b/arch/mips/boot/dts/mscc/ocelot_pcb123.dts @@ -25,3 +25,23 @@ &uart2 { status = "okay"; }; + +&mdio0 { + status = "okay"; +}; + +&port0 { + phy-handle = <&phy0>; +}; + +&port1 { + phy-handle = <&phy1>; +}; + +&port2 { + phy-handle = <&phy2>; +}; + +&port3 { + phy-handle = <&phy3>; +}; diff --git a/arch/mips/boot/dts/mti/Makefile b/arch/mips/boot/dts/mti/Makefile index 3508720cb6d9..b5f7426998b1 100644 --- a/arch/mips/boot/dts/mti/Makefile +++ b/arch/mips/boot/dts/mti/Makefile @@ -2,4 +2,4 @@ dtb-$(CONFIG_MIPS_MALTA) += malta.dtb dtb-$(CONFIG_LEGACY_BOARD_SEAD3) += sead3.dtb -obj-y += $(patsubst %.dtb, %.dtb.o, $(dtb-y)) +obj-$(CONFIG_BUILTIN_DTB) += $(addsuffix .o, $(dtb-y)) diff --git a/arch/mips/boot/dts/netlogic/Makefile b/arch/mips/boot/dts/netlogic/Makefile index d630b27950f0..45af4224494f 100644 --- a/arch/mips/boot/dts/netlogic/Makefile +++ b/arch/mips/boot/dts/netlogic/Makefile @@ -5,4 +5,4 @@ dtb-$(CONFIG_DT_XLP_FVP) += xlp_fvp.dtb dtb-$(CONFIG_DT_XLP_GVP) += xlp_gvp.dtb dtb-$(CONFIG_DT_XLP_RVP) += xlp_rvp.dtb -obj-y += $(patsubst %.dtb, %.dtb.o, $(dtb-y)) +obj-$(CONFIG_BUILTIN_DTB) += $(addsuffix .o, $(dtb-y)) diff --git a/arch/mips/boot/dts/pic32/Makefile b/arch/mips/boot/dts/pic32/Makefile index ba9bcef8fde9..fb57f36324db 100644 --- a/arch/mips/boot/dts/pic32/Makefile +++ b/arch/mips/boot/dts/pic32/Makefile @@ -4,4 +4,4 @@ dtb-$(CONFIG_DTB_PIC32_MZDA_SK) += pic32mzda_sk.dtb dtb-$(CONFIG_DTB_PIC32_NONE) += \ pic32mzda_sk.dtb -obj-y += $(patsubst %.dtb, %.dtb.o, $(dtb-y)) +obj-$(CONFIG_BUILTIN_DTB) += $(addsuffix .o, $(dtb-y)) diff --git a/arch/mips/boot/dts/ralink/Makefile b/arch/mips/boot/dts/ralink/Makefile index 94bee5b38b53..6c26dfa0a903 100644 --- a/arch/mips/boot/dts/ralink/Makefile +++ b/arch/mips/boot/dts/ralink/Makefile @@ -6,4 +6,4 @@ dtb-$(CONFIG_DTB_MT7620A_EVAL) += mt7620a_eval.dtb dtb-$(CONFIG_DTB_OMEGA2P) += omega2p.dtb dtb-$(CONFIG_DTB_VOCORE2) += vocore2.dtb -obj-y += $(patsubst %.dtb, %.dtb.o, $(dtb-y)) +obj-$(CONFIG_BUILTIN_DTB) += $(addsuffix .o, $(dtb-y)) diff --git a/arch/mips/configs/qi_lb60_defconfig b/arch/mips/configs/qi_lb60_defconfig index 3b02ff9a7c64..d8b7211a7b0f 100644 --- a/arch/mips/configs/qi_lb60_defconfig +++ b/arch/mips/configs/qi_lb60_defconfig @@ -72,6 +72,8 @@ CONFIG_POWER_SUPPLY=y CONFIG_BATTERY_JZ4740=y CONFIG_CHARGER_GPIO=y # CONFIG_HWMON is not set +CONFIG_WATCHDOG=y +CONFIG_JZ4740_WDT=y CONFIG_MFD_JZ4740_ADC=y CONFIG_REGULATOR=y CONFIG_REGULATOR_FIXED_VOLTAGE=y diff --git a/arch/mips/dec/time.c b/arch/mips/dec/time.c index a2a150e4fbc2..c38686f89a18 100644 --- a/arch/mips/dec/time.c +++ b/arch/mips/dec/time.c @@ -19,7 +19,7 @@ #include <asm/dec/ioasic.h> #include <asm/dec/machtype.h> -void read_persistent_clock(struct timespec *ts) +void read_persistent_clock64(struct timespec64 *ts) { unsigned int year, mon, day, hour, min, sec, real_year; unsigned long flags; @@ -54,19 +54,20 @@ void read_persistent_clock(struct timespec *ts) year += real_year - 72 + 2000; - ts->tv_sec = mktime(year, mon, day, hour, min, sec); + ts->tv_sec = mktime64(year, mon, day, hour, min, sec); ts->tv_nsec = 0; } /* - * In order to set the CMOS clock precisely, rtc_mips_set_mmss has to + * In order to set the CMOS clock precisely, update_persistent_clock64 has to * be called 500 ms after the second nowtime has started, because when * nowtime is written into the registers of the CMOS clock, it will * jump to the next second precisely 500 ms later. Check the Dallas * DS1287 data sheet for details. */ -int rtc_mips_set_mmss(unsigned long nowtime) +int update_persistent_clock64(struct timespec64 now) { + time64_t nowtime = now.tv_sec; int retval = 0; int real_seconds, real_minutes, cmos_minutes; unsigned char save_control, save_freq_select; @@ -91,8 +92,7 @@ int rtc_mips_set_mmss(unsigned long nowtime) * messing with unknown time zones but requires your * RTC not to be off by more than 15 minutes */ - real_seconds = nowtime % 60; - real_minutes = nowtime / 60; + real_minutes = div_s64_rem(nowtime, 60, &real_seconds); if (((abs(real_minutes - cmos_minutes) + 15) / 30) & 1) real_minutes += 30; /* correct for half hour time zone */ real_minutes %= 60; diff --git a/arch/mips/include/asm/cpu-features.h b/arch/mips/include/asm/cpu-features.h index 5f74590e0bea..9cdb4e4ce258 100644 --- a/arch/mips/include/asm/cpu-features.h +++ b/arch/mips/include/asm/cpu-features.h @@ -535,6 +535,13 @@ # define cpu_has_shared_ftlb_entries 0 #endif +#ifdef CONFIG_MIPS_MT_SMP +# define cpu_has_mipsmt_pertccounters \ + (cpu_data[0].options & MIPS_CPU_MT_PER_TC_PERF_COUNTERS) +#else +# define cpu_has_mipsmt_pertccounters 0 +#endif /* CONFIG_MIPS_MT_SMP */ + /* * Guest capabilities */ diff --git a/arch/mips/include/asm/cpu.h b/arch/mips/include/asm/cpu.h index d39324c4adf1..5b9d02ef4f60 100644 --- a/arch/mips/include/asm/cpu.h +++ b/arch/mips/include/asm/cpu.h @@ -418,6 +418,8 @@ enum cpu_type_enum { MBIT_ULL(54) /* CPU shares FTLB RAM with another */ #define MIPS_CPU_SHARED_FTLB_ENTRIES \ MBIT_ULL(55) /* CPU shares FTLB entries with another */ +#define MIPS_CPU_MT_PER_TC_PERF_COUNTERS \ + MBIT_ULL(56) /* CPU has perf counters implemented per TC (MIPSMT ASE) */ /* * CPU ASE encodings diff --git a/arch/mips/include/asm/io.h b/arch/mips/include/asm/io.h index a7d0b836f2f7..cea8ad864b3f 100644 --- a/arch/mips/include/asm/io.h +++ b/arch/mips/include/asm/io.h @@ -414,6 +414,8 @@ static inline type pfx##in##bwlq##p(unsigned long port) \ __val = *__addr; \ slow; \ \ + /* prevent prefetching of coherent DMA data prematurely */ \ + rmb(); \ return pfx##ioswab##bwlq(__addr, __val); \ } diff --git a/arch/mips/include/asm/mach-bcm47xx/bcm47xx_board.h b/arch/mips/include/asm/mach-bcm47xx/bcm47xx_board.h index cbf9da7f2f94..0ef8893e07f8 100644 --- a/arch/mips/include/asm/mach-bcm47xx/bcm47xx_board.h +++ b/arch/mips/include/asm/mach-bcm47xx/bcm47xx_board.h @@ -110,6 +110,7 @@ enum bcm47xx_board { BCM47XX_BOARD_NETGEAR_WNDR4000, BCM47XX_BOARD_NETGEAR_WNDR4500V1, BCM47XX_BOARD_NETGEAR_WNDR4500V2, + BCM47XX_BOARD_NETGEAR_WNR1000_V3, BCM47XX_BOARD_NETGEAR_WNR2000, BCM47XX_BOARD_NETGEAR_WNR3500L, BCM47XX_BOARD_NETGEAR_WNR3500U, diff --git a/arch/mips/include/asm/mach-jz4740/platform.h b/arch/mips/include/asm/mach-jz4740/platform.h index 3645974b7f65..c0c932ac72a7 100644 --- a/arch/mips/include/asm/mach-jz4740/platform.h +++ b/arch/mips/include/asm/mach-jz4740/platform.h @@ -29,7 +29,6 @@ extern struct platform_device jz4740_i2s_device; extern struct platform_device jz4740_pcm_device; extern struct platform_device jz4740_codec_device; extern struct platform_device jz4740_adc_device; -extern struct platform_device jz4740_wdt_device; extern struct platform_device jz4740_pwm_device; extern struct platform_device jz4740_dma_device; diff --git a/arch/mips/include/asm/mc146818-time.h b/arch/mips/include/asm/mc146818-time.h index 9e1ad26abdc0..cbf5cec345f1 100644 --- a/arch/mips/include/asm/mc146818-time.h +++ b/arch/mips/include/asm/mc146818-time.h @@ -86,7 +86,7 @@ static inline int mc146818_set_rtc_mmss(unsigned long nowtime) return retval; } -static inline unsigned long mc146818_get_cmos_time(void) +static inline time64_t mc146818_get_cmos_time(void) { unsigned int year, mon, day, hour, min, sec; unsigned long flags; @@ -113,7 +113,7 @@ static inline unsigned long mc146818_get_cmos_time(void) spin_unlock_irqrestore(&rtc_lock, flags); year = mc146818_decode_year(year); - return mktime(year, mon, day, hour, min, sec); + return mktime64(year, mon, day, hour, min, sec); } #endif /* __ASM_MC146818_TIME_H */ diff --git a/arch/mips/include/asm/mipsregs.h b/arch/mips/include/asm/mipsregs.h index f65859784a4c..0bc270806ec5 100644 --- a/arch/mips/include/asm/mipsregs.h +++ b/arch/mips/include/asm/mipsregs.h @@ -681,10 +681,17 @@ #define MIPS_CONF7_WII (_ULCAST_(1) << 31) #define MIPS_CONF7_RPS (_ULCAST_(1) << 2) +/* ExternalSync */ +#define MIPS_CONF7_ES (_ULCAST_(1) << 8) #define MIPS_CONF7_IAR (_ULCAST_(1) << 10) #define MIPS_CONF7_AR (_ULCAST_(1) << 16) +/* Config7 Bits specific to MIPS Technologies. */ + +/* Performance counters implemented Per TC */ +#define MTI_CONF7_PTC (_ULCAST_(1) << 19) + /* WatchLo* register definitions */ #define MIPS_WATCHLO_IRW (_ULCAST_(0x7) << 0) @@ -2760,6 +2767,7 @@ __BUILD_SET_C0(status) __BUILD_SET_C0(cause) __BUILD_SET_C0(config) __BUILD_SET_C0(config5) +__BUILD_SET_C0(config7) __BUILD_SET_C0(intcontrol) __BUILD_SET_C0(intctl) __BUILD_SET_C0(srsmap) diff --git a/arch/mips/include/asm/time.h b/arch/mips/include/asm/time.h index 17d4cd20f18c..b85ec64ee7e9 100644 --- a/arch/mips/include/asm/time.h +++ b/arch/mips/include/asm/time.h @@ -22,15 +22,6 @@ extern spinlock_t rtc_lock; /* - * RTC ops. By default, they point to weak no-op RTC functions. - * rtc_mips_set_time - reverse the above translation and set time to RTC. - * rtc_mips_set_mmss - similar to rtc_set_time, but only min and sec need - * to be set. Used by RTC sync-up. - */ -extern int rtc_mips_set_time(unsigned long); -extern int rtc_mips_set_mmss(unsigned long); - -/* * board specific routines required by time_init(). */ extern void plat_time_init(void); diff --git a/arch/mips/include/uapi/asm/unistd.h b/arch/mips/include/uapi/asm/unistd.h index bb05e9916a5f..f25dd1d83fb7 100644 --- a/arch/mips/include/uapi/asm/unistd.h +++ b/arch/mips/include/uapi/asm/unistd.h @@ -388,17 +388,19 @@ #define __NR_pkey_alloc (__NR_Linux + 364) #define __NR_pkey_free (__NR_Linux + 365) #define __NR_statx (__NR_Linux + 366) +#define __NR_rseq (__NR_Linux + 367) +#define __NR_io_pgetevents (__NR_Linux + 368) /* * Offset of the last Linux o32 flavoured syscall */ -#define __NR_Linux_syscalls 366 +#define __NR_Linux_syscalls 368 #endif /* _MIPS_SIM == _MIPS_SIM_ABI32 */ #define __NR_O32_Linux 4000 -#define __NR_O32_Linux_syscalls 366 +#define __NR_O32_Linux_syscalls 368 #if _MIPS_SIM == _MIPS_SIM_ABI64 @@ -733,16 +735,18 @@ #define __NR_pkey_alloc (__NR_Linux + 324) #define __NR_pkey_free (__NR_Linux + 325) #define __NR_statx (__NR_Linux + 326) +#define __NR_rseq (__NR_Linux + 327) +#define __NR_io_pgetevents (__NR_Linux + 328) /* * Offset of the last Linux 64-bit flavoured syscall */ -#define __NR_Linux_syscalls 326 +#define __NR_Linux_syscalls 328 #endif /* _MIPS_SIM == _MIPS_SIM_ABI64 */ #define __NR_64_Linux 5000 -#define __NR_64_Linux_syscalls 326 +#define __NR_64_Linux_syscalls 328 #if _MIPS_SIM == _MIPS_SIM_NABI32 @@ -1081,15 +1085,17 @@ #define __NR_pkey_alloc (__NR_Linux + 328) #define __NR_pkey_free (__NR_Linux + 329) #define __NR_statx (__NR_Linux + 330) +#define __NR_rseq (__NR_Linux + 331) +#define __NR_io_pgetevents (__NR_Linux + 332) /* * Offset of the last N32 flavoured syscall */ -#define __NR_Linux_syscalls 330 +#define __NR_Linux_syscalls 332 #endif /* _MIPS_SIM == _MIPS_SIM_NABI32 */ #define __NR_N32_Linux 6000 -#define __NR_N32_Linux_syscalls 330 +#define __NR_N32_Linux_syscalls 332 #endif /* _UAPI_ASM_UNISTD_H */ diff --git a/arch/mips/jz4740/platform.c b/arch/mips/jz4740/platform.c index 5b7cdd67a9d9..cbc5f8e87230 100644 --- a/arch/mips/jz4740/platform.c +++ b/arch/mips/jz4740/platform.c @@ -233,22 +233,6 @@ struct platform_device jz4740_adc_device = { .resource = jz4740_adc_resources, }; -/* Watchdog */ -static struct resource jz4740_wdt_resources[] = { - { - .start = JZ4740_WDT_BASE_ADDR, - .end = JZ4740_WDT_BASE_ADDR + 0x10 - 1, - .flags = IORESOURCE_MEM, - }, -}; - -struct platform_device jz4740_wdt_device = { - .name = "jz4740-wdt", - .id = -1, - .num_resources = ARRAY_SIZE(jz4740_wdt_resources), - .resource = jz4740_wdt_resources, -}; - /* PWM */ struct platform_device jz4740_pwm_device = { .name = "jz4740-pwm", diff --git a/arch/mips/jz4740/reset.c b/arch/mips/jz4740/reset.c index 67780c4b6573..5bf0cf44b55f 100644 --- a/arch/mips/jz4740/reset.c +++ b/arch/mips/jz4740/reset.c @@ -12,18 +12,9 @@ * */ -#include <linux/clk.h> -#include <linux/io.h> -#include <linux/kernel.h> -#include <linux/pm.h> - #include <asm/reboot.h> -#include <asm/mach-jz4740/base.h> -#include <asm/mach-jz4740/timer.h> - #include "reset.h" -#include "clock.h" static void jz4740_halt(void) { @@ -36,29 +27,7 @@ static void jz4740_halt(void) } } -#define JZ_REG_WDT_DATA 0x00 -#define JZ_REG_WDT_COUNTER_ENABLE 0x04 -#define JZ_REG_WDT_COUNTER 0x08 -#define JZ_REG_WDT_CTRL 0x0c - -static void jz4740_restart(char *command) -{ - void __iomem *wdt_base = ioremap(JZ4740_WDT_BASE_ADDR, 0x0f); - - jz4740_timer_enable_watchdog(); - - writeb(0, wdt_base + JZ_REG_WDT_COUNTER_ENABLE); - - writew(0, wdt_base + JZ_REG_WDT_COUNTER); - writew(0, wdt_base + JZ_REG_WDT_DATA); - writew(BIT(2), wdt_base + JZ_REG_WDT_CTRL); - - writeb(1, wdt_base + JZ_REG_WDT_COUNTER_ENABLE); - jz4740_halt(); -} - void jz4740_reset_init(void) { - _machine_restart = jz4740_restart; _machine_halt = jz4740_halt; } diff --git a/arch/mips/kernel/asm-offsets.c b/arch/mips/kernel/asm-offsets.c index c1cd41456d42..cbe4742d2fff 100644 --- a/arch/mips/kernel/asm-offsets.c +++ b/arch/mips/kernel/asm-offsets.c @@ -83,7 +83,7 @@ void output_task_defines(void) OFFSET(TASK_FLAGS, task_struct, flags); OFFSET(TASK_MM, task_struct, mm); OFFSET(TASK_PID, task_struct, pid); -#if defined(CONFIG_CC_STACKPROTECTOR) +#if defined(CONFIG_STACKPROTECTOR) OFFSET(TASK_STACK_CANARY, task_struct, stack_canary); #endif DEFINE(TASK_STRUCT_SIZE, sizeof(struct task_struct)); diff --git a/arch/mips/kernel/cpu-probe.c b/arch/mips/kernel/cpu-probe.c index 6b07b739f914..b2509c19cfb5 100644 --- a/arch/mips/kernel/cpu-probe.c +++ b/arch/mips/kernel/cpu-probe.c @@ -414,6 +414,14 @@ static int __init ftlb_disable(char *s) __setup("noftlb", ftlb_disable); +/* + * Check if the CPU has per tc perf counters + */ +static inline void cpu_set_mt_per_tc_perf(struct cpuinfo_mips *c) +{ + if (read_c0_config7() & MTI_CONF7_PTC) + c->options |= MIPS_CPU_MT_PER_TC_PERF_COUNTERS; +} static inline void check_errata(void) { @@ -1572,6 +1580,7 @@ static inline void cpu_probe_mips(struct cpuinfo_mips *c, unsigned int cpu) c->cputype = CPU_34K; c->writecombine = _CACHE_UNCACHED; __cpu_name[cpu] = "MIPS 34Kc"; + cpu_set_mt_per_tc_perf(c); break; case PRID_IMP_74K: c->cputype = CPU_74K; @@ -1592,6 +1601,7 @@ static inline void cpu_probe_mips(struct cpuinfo_mips *c, unsigned int cpu) c->cputype = CPU_1004K; c->writecombine = _CACHE_UNCACHED; __cpu_name[cpu] = "MIPS 1004Kc"; + cpu_set_mt_per_tc_perf(c); break; case PRID_IMP_1074K: c->cputype = CPU_1074K; @@ -1601,10 +1611,12 @@ static inline void cpu_probe_mips(struct cpuinfo_mips *c, unsigned int cpu) case PRID_IMP_INTERAPTIV_UP: c->cputype = CPU_INTERAPTIV; __cpu_name[cpu] = "MIPS interAptiv"; + cpu_set_mt_per_tc_perf(c); break; case PRID_IMP_INTERAPTIV_MP: c->cputype = CPU_INTERAPTIV; __cpu_name[cpu] = "MIPS interAptiv (multi)"; + cpu_set_mt_per_tc_perf(c); break; case PRID_IMP_PROAPTIV_UP: c->cputype = CPU_PROAPTIV; diff --git a/arch/mips/kernel/entry.S b/arch/mips/kernel/entry.S index 38a302919e6b..d7de8adcfcc8 100644 --- a/arch/mips/kernel/entry.S +++ b/arch/mips/kernel/entry.S @@ -79,6 +79,10 @@ FEXPORT(ret_from_fork) jal schedule_tail # a0 = struct task_struct *prev FEXPORT(syscall_exit) +#ifdef CONFIG_DEBUG_RSEQ + move a0, sp + jal rseq_syscall +#endif local_irq_disable # make sure need_resched and # signals dont change between # sampling and return @@ -141,6 +145,10 @@ work_notifysig: # deal with pending signals and j resume_userspace_check FEXPORT(syscall_exit_partial) +#ifdef CONFIG_DEBUG_RSEQ + move a0, sp + jal rseq_syscall +#endif local_irq_disable # make sure need_resched doesn't # change between and return LONG_L a2, TI_FLAGS($28) # current->work diff --git a/arch/mips/kernel/mcount.S b/arch/mips/kernel/mcount.S index f2ee7e1e3342..cff52b283e03 100644 --- a/arch/mips/kernel/mcount.S +++ b/arch/mips/kernel/mcount.S @@ -119,10 +119,20 @@ NESTED(_mcount, PT_SIZE, ra) EXPORT_SYMBOL(_mcount) PTR_LA t1, ftrace_stub PTR_L t2, ftrace_trace_function /* Prepare t2 for (1) */ - bne t1, t2, static_trace + beq t1, t2, fgraph_trace nop + MCOUNT_SAVE_REGS + + move a0, ra /* arg1: self return address */ + jalr t2 /* (1) call *ftrace_trace_function */ + move a1, AT /* arg2: parent's return address */ + + MCOUNT_RESTORE_REGS + +fgraph_trace: #ifdef CONFIG_FUNCTION_GRAPH_TRACER + PTR_LA t1, ftrace_stub PTR_L t3, ftrace_graph_return bne t1, t3, ftrace_graph_caller nop @@ -131,24 +141,11 @@ EXPORT_SYMBOL(_mcount) bne t1, t3, ftrace_graph_caller nop #endif - b ftrace_stub -#ifdef CONFIG_32BIT - addiu sp, sp, 8 -#else - nop -#endif -static_trace: - MCOUNT_SAVE_REGS - - move a0, ra /* arg1: self return address */ - jalr t2 /* (1) call *ftrace_trace_function */ - move a1, AT /* arg2: parent's return address */ - - MCOUNT_RESTORE_REGS #ifdef CONFIG_32BIT addiu sp, sp, 8 #endif + .globl ftrace_stub ftrace_stub: RETURN_BACK diff --git a/arch/mips/kernel/octeon_switch.S b/arch/mips/kernel/octeon_switch.S index e42113fe2762..896080b445c2 100644 --- a/arch/mips/kernel/octeon_switch.S +++ b/arch/mips/kernel/octeon_switch.S @@ -61,7 +61,7 @@ #endif 3: -#if defined(CONFIG_CC_STACKPROTECTOR) && !defined(CONFIG_SMP) +#if defined(CONFIG_STACKPROTECTOR) && !defined(CONFIG_SMP) PTR_LA t8, __stack_chk_guard LONG_L t9, TASK_STACK_CANARY(a1) LONG_S t9, 0(t8) diff --git a/arch/mips/kernel/perf_event_mipsxx.c b/arch/mips/kernel/perf_event_mipsxx.c index ee73550f0b9a..413863508f6f 100644 --- a/arch/mips/kernel/perf_event_mipsxx.c +++ b/arch/mips/kernel/perf_event_mipsxx.c @@ -129,20 +129,14 @@ static struct mips_pmu mipspmu; #ifdef CONFIG_MIPS_PERF_SHARED_TC_COUNTERS -static int cpu_has_mipsmt_pertccounters; - static DEFINE_RWLOCK(pmuint_rwlock); #if defined(CONFIG_CPU_BMIPS5000) #define vpe_id() (cpu_has_mipsmt_pertccounters ? \ 0 : (smp_processor_id() & MIPS_CPUID_TO_COUNTER_MASK)) #else -/* - * FIXME: For VSMP, vpe_id() is redefined for Perf-events, because - * cpu_data[cpuid].vpe_id reports 0 for _both_ CPUs. - */ #define vpe_id() (cpu_has_mipsmt_pertccounters ? \ - 0 : smp_processor_id()) + 0 : cpu_vpe_id(¤t_cpu_data)) #endif /* Copied from op_model_mipsxx.c */ @@ -329,7 +323,11 @@ static int mipsxx_pmu_alloc_counter(struct cpu_hw_events *cpuc, static void mipsxx_pmu_enable_event(struct hw_perf_event *evt, int idx) { + struct perf_event *event = container_of(evt, struct perf_event, hw); struct cpu_hw_events *cpuc = this_cpu_ptr(&cpu_hw_events); +#ifdef CONFIG_MIPS_MT_SMP + unsigned int range = evt->event_base >> 24; +#endif /* CONFIG_MIPS_MT_SMP */ WARN_ON(idx < 0 || idx >= mipspmu.num_counters); @@ -337,11 +335,37 @@ static void mipsxx_pmu_enable_event(struct hw_perf_event *evt, int idx) (evt->config_base & M_PERFCTL_CONFIG_MASK) | /* Make sure interrupt enabled. */ MIPS_PERFCTRL_IE; - if (IS_ENABLED(CONFIG_CPU_BMIPS5000)) + +#ifdef CONFIG_CPU_BMIPS5000 + { /* enable the counter for the calling thread */ cpuc->saved_ctrl[idx] |= (1 << (12 + vpe_id())) | BRCM_PERFCTRL_TC; + } +#else +#ifdef CONFIG_MIPS_MT_SMP + if (range > V) { + /* The counter is processor wide. Set it up to count all TCs. */ + pr_debug("Enabling perf counter for all TCs\n"); + cpuc->saved_ctrl[idx] |= M_TC_EN_ALL; + } else +#endif /* CONFIG_MIPS_MT_SMP */ + { + unsigned int cpu, ctrl; + + /* + * Set up the counter for a particular CPU when event->cpu is + * a valid CPU number. Otherwise set up the counter for the CPU + * scheduling this thread. + */ + cpu = (event->cpu >= 0) ? event->cpu : smp_processor_id(); + ctrl = M_PERFCTL_VPEID(cpu_vpe_id(&cpu_data[cpu])); + ctrl |= M_TC_EN_VPE; + cpuc->saved_ctrl[idx] |= ctrl; + pr_debug("Enabling perf counter for CPU%d\n", cpu); + } +#endif /* CONFIG_CPU_BMIPS5000 */ /* * We do not actually let the counter run. Leave it until start(). */ @@ -655,13 +679,14 @@ static unsigned int mipspmu_perf_event_encode(const struct mips_perf_event *pev) * event_id. */ #ifdef CONFIG_MIPS_MT_SMP - return ((unsigned int)pev->range << 24) | - (pev->cntr_mask & 0xffff00) | - (pev->event_id & 0xff); -#else - return (pev->cntr_mask & 0xffff00) | - (pev->event_id & 0xff); -#endif + if (num_possible_cpus() > 1) + return ((unsigned int)pev->range << 24) | + (pev->cntr_mask & 0xffff00) | + (pev->event_id & 0xff); + else +#endif /* CONFIG_MIPS_MT_SMP */ + return ((pev->cntr_mask & 0xffff00) | + (pev->event_id & 0xff)); } static const struct mips_perf_event *mipspmu_map_general_event(int idx) @@ -1265,37 +1290,6 @@ static const struct mips_perf_event xlp_cache_map }, }; -#ifdef CONFIG_MIPS_MT_SMP -static void check_and_calc_range(struct perf_event *event, - const struct mips_perf_event *pev) -{ - struct hw_perf_event *hwc = &event->hw; - - if (event->cpu >= 0) { - if (pev->range > V) { - /* - * The user selected an event that is processor - * wide, while expecting it to be VPE wide. - */ - hwc->config_base |= M_TC_EN_ALL; - } else { - /* - * FIXME: cpu_data[event->cpu].vpe_id reports 0 - * for both CPUs. - */ - hwc->config_base |= M_PERFCTL_VPEID(event->cpu); - hwc->config_base |= M_TC_EN_VPE; - } - } else - hwc->config_base |= M_TC_EN_ALL; -} -#else -static void check_and_calc_range(struct perf_event *event, - const struct mips_perf_event *pev) -{ -} -#endif - static int __hw_perf_event_init(struct perf_event *event) { struct perf_event_attr *attr = &event->attr; @@ -1331,10 +1325,6 @@ static int __hw_perf_event_init(struct perf_event *event) */ hwc->config_base = MIPS_PERFCTRL_IE; - /* Calculate range bits and validate it. */ - if (num_possible_cpus() > 1) - check_and_calc_range(event, pev); - hwc->event_base = mipspmu_perf_event_encode(pev); if (PERF_TYPE_RAW == event->attr.type) mutex_unlock(&raw_event_mutex); @@ -1723,7 +1713,6 @@ init_hw_perf_events(void) } #ifdef CONFIG_MIPS_PERF_SHARED_TC_COUNTERS - cpu_has_mipsmt_pertccounters = read_c0_config7() & (1<<19); if (!cpu_has_mipsmt_pertccounters) counters = counters_total_to_per_cpu(counters); #endif diff --git a/arch/mips/kernel/process.c b/arch/mips/kernel/process.c index 3775a8d694fb..9670e70139fd 100644 --- a/arch/mips/kernel/process.c +++ b/arch/mips/kernel/process.c @@ -29,6 +29,7 @@ #include <linux/kallsyms.h> #include <linux/random.h> #include <linux/prctl.h> +#include <linux/nmi.h> #include <asm/asm.h> #include <asm/bootinfo.h> @@ -180,7 +181,7 @@ int copy_thread_tls(unsigned long clone_flags, unsigned long usp, return 0; } -#ifdef CONFIG_CC_STACKPROTECTOR +#ifdef CONFIG_STACKPROTECTOR #include <linux/stackprotector.h> unsigned long __stack_chk_guard __read_mostly; EXPORT_SYMBOL(__stack_chk_guard); @@ -655,28 +656,42 @@ unsigned long arch_align_stack(unsigned long sp) return sp & ALMASK; } -static void arch_dump_stack(void *info) +static DEFINE_PER_CPU(call_single_data_t, backtrace_csd); +static struct cpumask backtrace_csd_busy; + +static void handle_backtrace(void *info) { - struct pt_regs *regs; + nmi_cpu_backtrace(get_irq_regs()); + cpumask_clear_cpu(smp_processor_id(), &backtrace_csd_busy); +} - regs = get_irq_regs(); +static void raise_backtrace(cpumask_t *mask) +{ + call_single_data_t *csd; + int cpu; - if (regs) - show_regs(regs); + for_each_cpu(cpu, mask) { + /* + * If we previously sent an IPI to the target CPU & it hasn't + * cleared its bit in the busy cpumask then it didn't handle + * our previous IPI & it's not safe for us to reuse the + * call_single_data_t. + */ + if (cpumask_test_and_set_cpu(cpu, &backtrace_csd_busy)) { + pr_warn("Unable to send backtrace IPI to CPU%u - perhaps it hung?\n", + cpu); + continue; + } - dump_stack(); + csd = &per_cpu(backtrace_csd, cpu); + csd->func = handle_backtrace; + smp_call_function_single_async(cpu, csd); + } } void arch_trigger_cpumask_backtrace(const cpumask_t *mask, bool exclude_self) { - long this_cpu = get_cpu(); - - if (cpumask_test_cpu(this_cpu, mask) && !exclude_self) - dump_stack(); - - smp_call_function_many(mask, arch_dump_stack, NULL, 1); - - put_cpu(); + nmi_trigger_cpumask_backtrace(mask, exclude_self, raise_backtrace); } int mips_get_process_fp_mode(struct task_struct *task) diff --git a/arch/mips/kernel/ptrace.c b/arch/mips/kernel/ptrace.c index 0c0c23c9c9f5..9f6c3f2aa2e2 100644 --- a/arch/mips/kernel/ptrace.c +++ b/arch/mips/kernel/ptrace.c @@ -811,7 +811,7 @@ long arch_ptrace(struct task_struct *child, long request, /* * The odd registers are actually the high * order bits of the values stored in the even - * registers - unless we're using r2k_switch.S. + * registers. */ tmp = get_fpr32(&fregs[(addr & ~1) - FPR_BASE], addr & 1); @@ -906,7 +906,7 @@ long arch_ptrace(struct task_struct *child, long request, /* * The odd registers are actually the high * order bits of the values stored in the even - * registers - unless we're using r2k_switch.S. + * registers. */ set_fpr32(&fregs[(addr & ~1) - FPR_BASE], addr & 1, data); diff --git a/arch/mips/kernel/ptrace32.c b/arch/mips/kernel/ptrace32.c index f30c381d3e1c..7edc629304c8 100644 --- a/arch/mips/kernel/ptrace32.c +++ b/arch/mips/kernel/ptrace32.c @@ -103,7 +103,7 @@ long compat_arch_ptrace(struct task_struct *child, compat_long_t request, /* * The odd registers are actually the high * order bits of the values stored in the even - * registers - unless we're using r2k_switch.S. + * registers. */ tmp = get_fpr32(&fregs[(addr & ~1) - FPR_BASE], addr & 1); @@ -216,7 +216,7 @@ long compat_arch_ptrace(struct task_struct *child, compat_long_t request, /* * The odd registers are actually the high * order bits of the values stored in the even - * registers - unless we're using r2k_switch.S. + * registers. */ set_fpr32(&fregs[(addr & ~1) - FPR_BASE], addr & 1, data); diff --git a/arch/mips/kernel/r2300_switch.S b/arch/mips/kernel/r2300_switch.S index 665897139f30..71b1aafae1bb 100644 --- a/arch/mips/kernel/r2300_switch.S +++ b/arch/mips/kernel/r2300_switch.S @@ -36,7 +36,7 @@ LEAF(resume) cpu_save_nonscratch a0 sw ra, THREAD_REG31(a0) -#if defined(CONFIG_CC_STACKPROTECTOR) && !defined(CONFIG_SMP) +#if defined(CONFIG_STACKPROTECTOR) && !defined(CONFIG_SMP) PTR_LA t8, __stack_chk_guard LONG_L t9, TASK_STACK_CANARY(a1) LONG_S t9, 0(t8) diff --git a/arch/mips/kernel/r4k_switch.S b/arch/mips/kernel/r4k_switch.S index 17cf9341c1cf..58232ae6cfae 100644 --- a/arch/mips/kernel/r4k_switch.S +++ b/arch/mips/kernel/r4k_switch.S @@ -31,7 +31,7 @@ cpu_save_nonscratch a0 LONG_S ra, THREAD_REG31(a0) -#if defined(CONFIG_CC_STACKPROTECTOR) && !defined(CONFIG_SMP) +#if defined(CONFIG_STACKPROTECTOR) && !defined(CONFIG_SMP) PTR_LA t8, __stack_chk_guard LONG_L t9, TASK_STACK_CANARY(a1) LONG_S t9, 0(t8) diff --git a/arch/mips/kernel/scall32-o32.S b/arch/mips/kernel/scall32-o32.S index a9a7d78803cd..91d3c8c46097 100644 --- a/arch/mips/kernel/scall32-o32.S +++ b/arch/mips/kernel/scall32-o32.S @@ -590,3 +590,5 @@ EXPORT(sys_call_table) PTR sys_pkey_alloc PTR sys_pkey_free /* 4365 */ PTR sys_statx + PTR sys_rseq + PTR sys_io_pgetevents diff --git a/arch/mips/kernel/scall64-64.S b/arch/mips/kernel/scall64-64.S index 65d5aeeb9bdb..358d9599983d 100644 --- a/arch/mips/kernel/scall64-64.S +++ b/arch/mips/kernel/scall64-64.S @@ -439,4 +439,6 @@ EXPORT(sys_call_table) PTR sys_pkey_alloc PTR sys_pkey_free /* 5325 */ PTR sys_statx + PTR sys_rseq + PTR sys_io_pgetevents .size sys_call_table,.-sys_call_table diff --git a/arch/mips/kernel/scall64-n32.S b/arch/mips/kernel/scall64-n32.S index cbf190ef9e8a..c65eaacc1abf 100644 --- a/arch/mips/kernel/scall64-n32.S +++ b/arch/mips/kernel/scall64-n32.S @@ -434,4 +434,6 @@ EXPORT(sysn32_call_table) PTR sys_pkey_alloc PTR sys_pkey_free PTR sys_statx /* 6330 */ + PTR sys_rseq + PTR compat_sys_io_pgetevents .size sysn32_call_table,.-sysn32_call_table diff --git a/arch/mips/kernel/scall64-o32.S b/arch/mips/kernel/scall64-o32.S index 9ebe3e2403b1..73913f072e39 100644 --- a/arch/mips/kernel/scall64-o32.S +++ b/arch/mips/kernel/scall64-o32.S @@ -583,4 +583,6 @@ EXPORT(sys32_call_table) PTR sys_pkey_alloc PTR sys_pkey_free /* 4365 */ PTR sys_statx + PTR sys_rseq + PTR compat_sys_io_pgetevents .size sys32_call_table,.-sys32_call_table diff --git a/arch/mips/kernel/setup.c b/arch/mips/kernel/setup.c index 563188ac6fa2..2c96c0c68116 100644 --- a/arch/mips/kernel/setup.c +++ b/arch/mips/kernel/setup.c @@ -93,7 +93,7 @@ void __init add_memory_region(phys_addr_t start, phys_addr_t size, long type) * If the region reaches the top of the physical address space, adjust * the size slightly so that (start + size) doesn't overflow */ - if (start + size - 1 == (phys_addr_t)ULLONG_MAX) + if (start + size - 1 == PHYS_ADDR_MAX) --size; /* Sanity check */ @@ -376,7 +376,7 @@ static void __init bootmem_init(void) unsigned long reserved_end; unsigned long mapstart = ~0UL; unsigned long bootmap_size; - phys_addr_t ramstart = (phys_addr_t)ULLONG_MAX; + phys_addr_t ramstart = PHYS_ADDR_MAX; bool bootmap_valid = false; int i; diff --git a/arch/mips/kernel/signal.c b/arch/mips/kernel/signal.c index 9e224469c788..0a9cfe7a0372 100644 --- a/arch/mips/kernel/signal.c +++ b/arch/mips/kernel/signal.c @@ -801,6 +801,8 @@ static void handle_signal(struct ksignal *ksig, struct pt_regs *regs) regs->regs[0] = 0; /* Don't deal with this again. */ } + rseq_signal_deliver(ksig, regs); + if (sig_uses_siginfo(&ksig->ka, abi)) ret = abi->setup_rt_frame(vdso + abi->vdso->off_rt_sigreturn, ksig, regs, oldset); @@ -868,6 +870,7 @@ asmlinkage void do_notify_resume(struct pt_regs *regs, void *unused, if (thread_info_flags & _TIF_NOTIFY_RESUME) { clear_thread_flag(TIF_NOTIFY_RESUME); tracehook_notify_resume(regs); + rseq_handle_notify_resume(NULL, regs); } user_enter(); diff --git a/arch/mips/kernel/time.c b/arch/mips/kernel/time.c index a6ebc8135112..bfe02ded25d1 100644 --- a/arch/mips/kernel/time.c +++ b/arch/mips/kernel/time.c @@ -34,21 +34,6 @@ DEFINE_SPINLOCK(rtc_lock); EXPORT_SYMBOL(rtc_lock); -int __weak rtc_mips_set_time(unsigned long sec) -{ - return -ENODEV; -} - -int __weak rtc_mips_set_mmss(unsigned long nowtime) -{ - return rtc_mips_set_time(nowtime); -} - -int update_persistent_clock(struct timespec now) -{ - return rtc_mips_set_mmss(now.tv_sec); -} - static int null_perf_irq(void) { return 0; diff --git a/arch/mips/kernel/traps.c b/arch/mips/kernel/traps.c index d67fa74622ee..8d505a21396e 100644 --- a/arch/mips/kernel/traps.c +++ b/arch/mips/kernel/traps.c @@ -351,6 +351,7 @@ static void __show_regs(const struct pt_regs *regs) void show_regs(struct pt_regs *regs) { __show_regs((struct pt_regs *)regs); + dump_stack(); } void show_registers(struct pt_regs *regs) diff --git a/arch/mips/kernel/vpe.c b/arch/mips/kernel/vpe.c index 544ea21bfef9..0bef238d2c0c 100644 --- a/arch/mips/kernel/vpe.c +++ b/arch/mips/kernel/vpe.c @@ -872,7 +872,7 @@ static ssize_t vpe_write(struct file *file, const char __user *buffer, return -ENODEV; if ((count + v->len) > v->plen) { - pr_warn("VPE loader: elf size too big. Perhaps strip uneeded symbols\n"); + pr_warn("VPE loader: elf size too big. Perhaps strip unneeded symbols\n"); return -ENOMEM; } diff --git a/arch/mips/kvm/mips.c b/arch/mips/kvm/mips.c index 0f725e9cee8f..7cd76f93a438 100644 --- a/arch/mips/kvm/mips.c +++ b/arch/mips/kvm/mips.c @@ -1076,7 +1076,7 @@ int kvm_arch_vcpu_ioctl_set_fpu(struct kvm_vcpu *vcpu, struct kvm_fpu *fpu) return -ENOIOCTLCMD; } -int kvm_arch_vcpu_fault(struct kvm_vcpu *vcpu, struct vm_fault *vmf) +vm_fault_t kvm_arch_vcpu_fault(struct kvm_vcpu *vcpu, struct vm_fault *vmf) { return VM_FAULT_SIGBUS; } diff --git a/arch/mips/lasat/ds1603.c b/arch/mips/lasat/ds1603.c index 8bd5cf820eed..e6ce39fefa78 100644 --- a/arch/mips/lasat/ds1603.c +++ b/arch/mips/lasat/ds1603.c @@ -136,7 +136,7 @@ static void rtc_end_op(void) lasat_ndelay(1000); } -void read_persistent_clock(struct timespec *ts) +void read_persistent_clock64(struct timespec64 *ts) { unsigned long word; unsigned long flags; @@ -152,14 +152,19 @@ void read_persistent_clock(struct timespec *ts) ts->tv_nsec = 0; } -int rtc_mips_set_mmss(unsigned long time) +int update_persistent_clock64(struct timespec64 now) { + time64_t time = now.tv_sec; unsigned long flags; spin_lock_irqsave(&rtc_lock, flags); rtc_init_op(); rtc_write_byte(SET_TIME_CMD); - rtc_write_word(time); + /* + * Due to the hardware limitation, we cast to 'unsigned long' type, + * so it will overflow in year 2106 on 32-bit machine. + */ + rtc_write_word((unsigned long)time); rtc_end_op(); spin_unlock_irqrestore(&rtc_lock, flags); diff --git a/arch/mips/lasat/sysctl.c b/arch/mips/lasat/sysctl.c index 6f7422400f32..ead07c243c6a 100644 --- a/arch/mips/lasat/sysctl.c +++ b/arch/mips/lasat/sysctl.c @@ -73,8 +73,16 @@ int proc_dolasatrtc(struct ctl_table *table, int write, if (r) return r; - if (write) - rtc_mips_set_mmss(rtctmp); + if (write) { + /* + * Due to the RTC hardware limitation, we can not actually + * use the full 64-bit range here. + */ + ts.tv_sec = rtctmp; + ts.tv_nsec = 0; + + update_persistent_clock64(ts); + } return 0; } diff --git a/arch/mips/lib/Makefile b/arch/mips/lib/Makefile index e84e12655fa8..6537e022ef62 100644 --- a/arch/mips/lib/Makefile +++ b/arch/mips/lib/Makefile @@ -16,5 +16,4 @@ obj-$(CONFIG_CPU_R3000) += r3k_dump_tlb.o obj-$(CONFIG_CPU_TX39XX) += r3k_dump_tlb.o # libgcc-style stuff needed in the kernel -obj-y += ashldi3.o ashrdi3.o bswapsi.o bswapdi.o cmpdi2.o lshrdi3.o multi3.o \ - ucmpdi2.o +obj-y += bswapsi.o bswapdi.o multi3.o diff --git a/arch/mips/lib/ashldi3.c b/arch/mips/lib/ashldi3.c deleted file mode 100644 index 24cd6903e797..000000000000 --- a/arch/mips/lib/ashldi3.c +++ /dev/null @@ -1,30 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0 -#include <linux/export.h> - -#include "libgcc.h" - -long long notrace __ashldi3(long long u, word_type b) -{ - DWunion uu, w; - word_type bm; - - if (b == 0) - return u; - - uu.ll = u; - bm = 32 - b; - - if (bm <= 0) { - w.s.low = 0; - w.s.high = (unsigned int) uu.s.low << -bm; - } else { - const unsigned int carries = (unsigned int) uu.s.low >> bm; - - w.s.low = (unsigned int) uu.s.low << b; - w.s.high = ((unsigned int) uu.s.high << b) | carries; - } - - return w.ll; -} - -EXPORT_SYMBOL(__ashldi3); diff --git a/arch/mips/lib/ashrdi3.c b/arch/mips/lib/ashrdi3.c deleted file mode 100644 index 23f5295af51e..000000000000 --- a/arch/mips/lib/ashrdi3.c +++ /dev/null @@ -1,32 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0 -#include <linux/export.h> - -#include "libgcc.h" - -long long notrace __ashrdi3(long long u, word_type b) -{ - DWunion uu, w; - word_type bm; - - if (b == 0) - return u; - - uu.ll = u; - bm = 32 - b; - - if (bm <= 0) { - /* w.s.high = 1..1 or 0..0 */ - w.s.high = - uu.s.high >> 31; - w.s.low = uu.s.high >> -bm; - } else { - const unsigned int carries = (unsigned int) uu.s.high << bm; - - w.s.high = uu.s.high >> b; - w.s.low = ((unsigned int) uu.s.low >> b) | carries; - } - - return w.ll; -} - -EXPORT_SYMBOL(__ashrdi3); diff --git a/arch/mips/lib/cmpdi2.c b/arch/mips/lib/cmpdi2.c deleted file mode 100644 index 93cfc785927d..000000000000 --- a/arch/mips/lib/cmpdi2.c +++ /dev/null @@ -1,28 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0 -#include <linux/export.h> - -#include "libgcc.h" - -word_type notrace __cmpdi2(long long a, long long b) -{ - const DWunion au = { - .ll = a - }; - const DWunion bu = { - .ll = b - }; - - if (au.s.high < bu.s.high) - return 0; - else if (au.s.high > bu.s.high) - return 2; - - if ((unsigned int) au.s.low < (unsigned int) bu.s.low) - return 0; - else if ((unsigned int) au.s.low > (unsigned int) bu.s.low) - return 2; - - return 1; -} - -EXPORT_SYMBOL(__cmpdi2); diff --git a/arch/mips/lib/lshrdi3.c b/arch/mips/lib/lshrdi3.c deleted file mode 100644 index 914b971aca3b..000000000000 --- a/arch/mips/lib/lshrdi3.c +++ /dev/null @@ -1,30 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0 -#include <linux/export.h> - -#include "libgcc.h" - -long long notrace __lshrdi3(long long u, word_type b) -{ - DWunion uu, w; - word_type bm; - - if (b == 0) - return u; - - uu.ll = u; - bm = 32 - b; - - if (bm <= 0) { - w.s.high = 0; - w.s.low = (unsigned int) uu.s.high >> -bm; - } else { - const unsigned int carries = (unsigned int) uu.s.high << bm; - - w.s.high = (unsigned int) uu.s.high >> b; - w.s.low = ((unsigned int) uu.s.low >> b) | carries; - } - - return w.ll; -} - -EXPORT_SYMBOL(__lshrdi3); diff --git a/arch/mips/lib/memset.S b/arch/mips/lib/memset.S index f7327979a8f8..1cc306520a55 100644 --- a/arch/mips/lib/memset.S +++ b/arch/mips/lib/memset.S @@ -95,7 +95,7 @@ sltiu t0, a2, STORSIZE /* very small region? */ bnez t0, .Lsmall_memset\@ - andi t0, a0, STORMASK /* aligned? */ + andi t0, a0, STORMASK /* aligned? */ #ifdef CONFIG_CPU_MICROMIPS move t8, a1 /* used by 'swp' instruction */ @@ -103,12 +103,12 @@ #endif #ifndef CONFIG_CPU_DADDI_WORKAROUNDS beqz t0, 1f - PTR_SUBU t0, STORSIZE /* alignment in bytes */ + PTR_SUBU t0, STORSIZE /* alignment in bytes */ #else .set noat li AT, STORSIZE beqz t0, 1f - PTR_SUBU t0, AT /* alignment in bytes */ + PTR_SUBU t0, AT /* alignment in bytes */ .set at #endif @@ -149,7 +149,7 @@ 1: ori t1, a2, 0x3f /* # of full blocks */ xori t1, 0x3f beqz t1, .Lmemset_partial\@ /* no block to fill */ - andi t0, a2, 0x40-STORSIZE + andi t0, a2, 0x40-STORSIZE PTR_ADDU t1, a0 /* end address */ .set reorder @@ -174,7 +174,7 @@ .set at #endif jr t1 - PTR_ADDU a0, t0 /* dest ptr */ + PTR_ADDU a0, t0 /* dest ptr */ .set push .set noreorder @@ -186,7 +186,7 @@ beqz a2, 1f #ifndef CONFIG_CPU_MIPSR6 - PTR_ADDU a0, a2 /* What's left */ + PTR_ADDU a0, a2 /* What's left */ R10KCBARRIER(0(ra)) #ifdef __MIPSEB__ EX(LONG_S_R, a1, -1(a0), .Llast_fixup\@) @@ -194,7 +194,7 @@ EX(LONG_S_L, a1, -1(a0), .Llast_fixup\@) #endif #else - PTR_SUBU t0, $0, a2 + PTR_SUBU t0, $0, a2 PTR_ADDIU t0, 1 STORE_BYTE(0) STORE_BYTE(1) @@ -210,11 +210,11 @@ 0: #endif 1: jr ra - move a2, zero + move a2, zero .Lsmall_memset\@: beqz a2, 2f - PTR_ADDU t1, a0, a2 + PTR_ADDU t1, a0, a2 1: PTR_ADDIU a0, 1 /* fill bytewise */ R10KCBARRIER(0(ra)) @@ -222,7 +222,7 @@ EX(sb, a1, -1(a0), .Lsmall_fixup\@) 2: jr ra /* done */ - move a2, zero + move a2, zero .if __memset == 1 END(memset) .set __memset, 0 @@ -238,7 +238,7 @@ .Lfirst_fixup\@: jr ra - nop + nop .Lfwd_fixup\@: PTR_L t0, TI_TASK($28) @@ -246,7 +246,7 @@ LONG_L t0, THREAD_BUADDR(t0) LONG_ADDU a2, t1 jr ra - LONG_SUBU a2, t0 + LONG_SUBU a2, t0 .Lpartial_fixup\@: PTR_L t0, TI_TASK($28) @@ -254,7 +254,7 @@ LONG_L t0, THREAD_BUADDR(t0) LONG_ADDU a2, a0 jr ra - LONG_SUBU a2, t0 + LONG_SUBU a2, t0 .Llast_fixup\@: jr ra @@ -278,7 +278,7 @@ LEAF(memset) EXPORT_SYMBOL(memset) beqz a1, 1f - move v0, a0 /* result */ + move v0, a0 /* result */ andi a1, 0xff /* spread fillword */ LONG_SLL t1, a1, 8 diff --git a/arch/mips/lib/ucmpdi2.c b/arch/mips/lib/ucmpdi2.c deleted file mode 100644 index c31c78ca4175..000000000000 --- a/arch/mips/lib/ucmpdi2.c +++ /dev/null @@ -1,22 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0 -#include <linux/export.h> - -#include "libgcc.h" - -word_type notrace __ucmpdi2(unsigned long long a, unsigned long long b) -{ - const DWunion au = {.ll = a}; - const DWunion bu = {.ll = b}; - - if ((unsigned int) au.s.high < (unsigned int) bu.s.high) - return 0; - else if ((unsigned int) au.s.high > (unsigned int) bu.s.high) - return 2; - if ((unsigned int) au.s.low < (unsigned int) bu.s.low) - return 0; - else if ((unsigned int) au.s.low > (unsigned int) bu.s.low) - return 2; - return 1; -} - -EXPORT_SYMBOL(__ucmpdi2); diff --git a/arch/mips/loongson64/common/time.c b/arch/mips/loongson64/common/time.c index e1a5382ad47e..0ba53c55ff33 100644 --- a/arch/mips/loongson64/common/time.c +++ b/arch/mips/loongson64/common/time.c @@ -29,7 +29,7 @@ void __init plat_time_init(void) #endif } -void read_persistent_clock(struct timespec *ts) +void read_persistent_clock64(struct timespec64 *ts) { ts->tv_sec = mc146818_get_cmos_time(); ts->tv_nsec = 0; diff --git a/arch/mips/mm/ioremap.c b/arch/mips/mm/ioremap.c index 1986e09fb457..1601d90b087b 100644 --- a/arch/mips/mm/ioremap.c +++ b/arch/mips/mm/ioremap.c @@ -9,6 +9,7 @@ #include <linux/export.h> #include <asm/addrspace.h> #include <asm/byteorder.h> +#include <linux/ioport.h> #include <linux/sched.h> #include <linux/slab.h> #include <linux/vmalloc.h> @@ -98,6 +99,20 @@ static int remap_area_pages(unsigned long address, phys_addr_t phys_addr, return error; } +static int __ioremap_check_ram(unsigned long start_pfn, unsigned long nr_pages, + void *arg) +{ + unsigned long i; + + for (i = 0; i < nr_pages; i++) { + if (pfn_valid(start_pfn + i) && + !PageReserved(pfn_to_page(start_pfn + i))) + return 1; + } + + return 0; +} + /* * Generic mapping function (not visible outside): */ @@ -116,8 +131,8 @@ static int remap_area_pages(unsigned long address, phys_addr_t phys_addr, void __iomem * __ioremap(phys_addr_t phys_addr, phys_addr_t size, unsigned long flags) { + unsigned long offset, pfn, last_pfn; struct vm_struct * area; - unsigned long offset; phys_addr_t last_addr; void * addr; @@ -137,18 +152,16 @@ void __iomem * __ioremap(phys_addr_t phys_addr, phys_addr_t size, unsigned long return (void __iomem *) CKSEG1ADDR(phys_addr); /* - * Don't allow anybody to remap normal RAM that we're using.. + * Don't allow anybody to remap RAM that may be allocated by the page + * allocator, since that could lead to races & data clobbering. */ - if (phys_addr < virt_to_phys(high_memory)) { - char *t_addr, *t_end; - struct page *page; - - t_addr = __va(phys_addr); - t_end = t_addr + (size - 1); - - for(page = virt_to_page(t_addr); page <= virt_to_page(t_end); page++) - if(!PageReserved(page)) - return NULL; + pfn = PFN_DOWN(phys_addr); + last_pfn = PFN_DOWN(last_addr); + if (walk_system_ram_range(pfn, last_pfn - pfn + 1, NULL, + __ioremap_check_ram) == 1) { + WARN_ONCE(1, "ioremap on RAM at %pa - %pa\n", + &phys_addr, &last_addr); + return NULL; } /* diff --git a/arch/mips/mm/sc-debugfs.c b/arch/mips/mm/sc-debugfs.c index 2e2132d3f5c7..2a116084216f 100644 --- a/arch/mips/mm/sc-debugfs.c +++ b/arch/mips/mm/sc-debugfs.c @@ -31,17 +31,10 @@ static ssize_t sc_prefetch_write(struct file *file, const char __user *user_buf, size_t count, loff_t *ppos) { - char buf[32]; - ssize_t buf_size; bool enabled; int err; - buf_size = min(count, sizeof(buf) - 1); - if (copy_from_user(buf, user_buf, buf_size)) - return -EFAULT; - - buf[buf_size] = '\0'; - err = strtobool(buf, &enabled); + err = kstrtobool_from_user(user_buf, count, &enabled); if (err) return err; diff --git a/arch/mips/mti-malta/malta-time.c b/arch/mips/mti-malta/malta-time.c index 66c866740ff2..d22b7edc3886 100644 --- a/arch/mips/mti-malta/malta-time.c +++ b/arch/mips/mti-malta/malta-time.c @@ -134,7 +134,7 @@ static void __init estimate_frequencies(void) } } -void read_persistent_clock(struct timespec *ts) +void read_persistent_clock64(struct timespec64 *ts) { ts->tv_sec = mc146818_get_cmos_time(); ts->tv_nsec = 0; diff --git a/arch/mips/oprofile/op_model_mipsxx.c b/arch/mips/oprofile/op_model_mipsxx.c index c3e4c18ef8d4..7c04b17f4a48 100644 --- a/arch/mips/oprofile/op_model_mipsxx.c +++ b/arch/mips/oprofile/op_model_mipsxx.c @@ -36,7 +36,6 @@ static int perfcount_irq; #endif #ifdef CONFIG_MIPS_MT_SMP -static int cpu_has_mipsmt_pertccounters; #define WHAT (MIPS_PERFCTRL_MT_EN_VPE | \ M_PERFCTL_VPEID(cpu_vpe_id(¤t_cpu_data))) #define vpe_id() (cpu_has_mipsmt_pertccounters ? \ @@ -326,7 +325,6 @@ static int __init mipsxx_init(void) } #ifdef CONFIG_MIPS_MT_SMP - cpu_has_mipsmt_pertccounters = read_c0_config7() & (1<<19); if (!cpu_has_mipsmt_pertccounters) counters = counters_total_to_per_cpu(counters); #endif diff --git a/arch/mips/pci/pci.c b/arch/mips/pci/pci.c index 9632436d74d7..c2e94cf5ecda 100644 --- a/arch/mips/pci/pci.c +++ b/arch/mips/pci/pci.c @@ -54,5 +54,5 @@ void pci_resource_to_user(const struct pci_dev *dev, int bar, phys_addr_t size = resource_size(rsrc); *start = fixup_bigphys_addr(rsrc->start, size); - *end = rsrc->start + size; + *end = rsrc->start + size - 1; } diff --git a/arch/mips/sibyte/swarm/rtc_m41t81.c b/arch/mips/sibyte/swarm/rtc_m41t81.c index e62466445f08..4ac8ccdf56bb 100644 --- a/arch/mips/sibyte/swarm/rtc_m41t81.c +++ b/arch/mips/sibyte/swarm/rtc_m41t81.c @@ -141,13 +141,13 @@ static int m41t81_write(uint8_t addr, int b) return 0; } -int m41t81_set_time(unsigned long t) +int m41t81_set_time(time64_t t) { struct rtc_time tm; unsigned long flags; /* Note we don't care about the century */ - rtc_time_to_tm(t, &tm); + rtc_time64_to_tm(t, &tm); /* * Note the write order matters as it ensures the correctness. @@ -188,7 +188,7 @@ int m41t81_set_time(unsigned long t) return 0; } -unsigned long m41t81_get_time(void) +time64_t m41t81_get_time(void) { unsigned int year, mon, day, hour, min, sec; unsigned long flags; @@ -218,7 +218,7 @@ unsigned long m41t81_get_time(void) year += 2000; - return mktime(year, mon, day, hour, min, sec); + return mktime64(year, mon, day, hour, min, sec); } int m41t81_probe(void) diff --git a/arch/mips/sibyte/swarm/rtc_xicor1241.c b/arch/mips/sibyte/swarm/rtc_xicor1241.c index 50a82c495427..2dcaaa7e3bfa 100644 --- a/arch/mips/sibyte/swarm/rtc_xicor1241.c +++ b/arch/mips/sibyte/swarm/rtc_xicor1241.c @@ -109,13 +109,13 @@ static int xicor_write(uint8_t addr, int b) } } -int xicor_set_time(unsigned long t) +int xicor_set_time(time64_t t) { struct rtc_time tm; int tmp; unsigned long flags; - rtc_time_to_tm(t, &tm); + rtc_time64_to_tm(t, &tm); tm.tm_year += 1900; spin_lock_irqsave(&rtc_lock, flags); @@ -168,7 +168,7 @@ int xicor_set_time(unsigned long t) return 0; } -unsigned long xicor_get_time(void) +time64_t xicor_get_time(void) { unsigned int year, mon, day, hour, min, sec, y2k; unsigned long flags; @@ -201,7 +201,7 @@ unsigned long xicor_get_time(void) year += (y2k * 100); - return mktime(year, mon, day, hour, min, sec); + return mktime64(year, mon, day, hour, min, sec); } int xicor_probe(void) diff --git a/arch/mips/sibyte/swarm/setup.c b/arch/mips/sibyte/swarm/setup.c index 494fb0a475ac..152ca71cc2d7 100644 --- a/arch/mips/sibyte/swarm/setup.c +++ b/arch/mips/sibyte/swarm/setup.c @@ -57,12 +57,12 @@ extern void sb1250_setup(void); #endif extern int xicor_probe(void); -extern int xicor_set_time(unsigned long); -extern unsigned long xicor_get_time(void); +extern int xicor_set_time(time64_t); +extern time64_t xicor_get_time(void); extern int m41t81_probe(void); -extern int m41t81_set_time(unsigned long); -extern unsigned long m41t81_get_time(void); +extern int m41t81_set_time(time64_t); +extern time64_t m41t81_get_time(void); const char *get_system_type(void) { @@ -87,9 +87,9 @@ enum swarm_rtc_type { enum swarm_rtc_type swarm_rtc_type; -void read_persistent_clock(struct timespec *ts) +void read_persistent_clock64(struct timespec64 *ts) { - unsigned long sec; + time64_t sec; switch (swarm_rtc_type) { case RTC_XICOR: @@ -102,15 +102,17 @@ void read_persistent_clock(struct timespec *ts) case RTC_NONE: default: - sec = mktime(2000, 1, 1, 0, 0, 0); + sec = mktime64(2000, 1, 1, 0, 0, 0); break; } ts->tv_sec = sec; ts->tv_nsec = 0; } -int rtc_mips_set_time(unsigned long sec) +int update_persistent_clock64(struct timespec64 now) { + time64_t sec = now.tv_sec; + switch (swarm_rtc_type) { case RTC_XICOR: return xicor_set_time(sec); diff --git a/arch/mips/sni/time.c b/arch/mips/sni/time.c index 0eb7d1e8821b..dbace1f3e1a9 100644 --- a/arch/mips/sni/time.c +++ b/arch/mips/sni/time.c @@ -171,9 +171,3 @@ void __init plat_time_init(void) } setup_pit_timer(); } - -void read_persistent_clock(struct timespec *ts) -{ - ts->tv_sec = -1; - ts->tv_nsec = 0; -} diff --git a/arch/mips/txx9/rbtx4939/setup.c b/arch/mips/txx9/rbtx4939/setup.c index fd26fadc8617..ef29a9c2ffd6 100644 --- a/arch/mips/txx9/rbtx4939/setup.c +++ b/arch/mips/txx9/rbtx4939/setup.c @@ -219,7 +219,7 @@ static int __init rbtx4939_led_probe(struct platform_device *pdev) "nand-disk", }; - leds_data = kzalloc(sizeof(*leds_data) * RBTX4939_MAX_7SEGLEDS, + leds_data = kcalloc(RBTX4939_MAX_7SEGLEDS, sizeof(*leds_data), GFP_KERNEL); if (!leds_data) return -ENOMEM; |