diff --git a/arch/loongarch/Kconfig b/arch/loongarch/Kconfig index 4bda595..a2774ad 100644 --- a/arch/loongarch/Kconfig +++ b/arch/loongarch/Kconfig @@ -16,6 +16,7 @@ config LOONGARCH select ARCH_HAS_ACPI_TABLE_UPGRADE if ACPI select ARCH_HAS_CPU_FINALIZE_INIT select ARCH_HAS_CURRENT_STACK_POINTER + select ARCH_HAS_FAST_MULTIPLIER select ARCH_HAS_FORTIFY_SOURCE select ARCH_HAS_KCOV select ARCH_HAS_NMI_SAFE_THIS_CPU_OPS @@ -56,6 +57,7 @@ config LOONGARCH select ARCH_SUPPORTS_ACPI select ARCH_SUPPORTS_ATOMIC_RMW select ARCH_SUPPORTS_HUGETLBFS + select ARCH_SUPPORTS_INT128 if CC_HAS_INT128 select ARCH_SUPPORTS_LTO_CLANG select ARCH_SUPPORTS_LTO_CLANG_THIN select ARCH_SUPPORTS_NUMA_BALANCING @@ -63,10 +65,12 @@ config LOONGARCH select ARCH_USE_CMPXCHG_LOCKREF select ARCH_USE_QUEUED_RWLOCKS select ARCH_USE_QUEUED_SPINLOCKS + select ARCH_WANT_DEFAULT_BPF_JIT select ARCH_WANT_DEFAULT_TOPDOWN_MMAP_LAYOUT select ARCH_WANT_LD_ORPHAN_WARN select ARCH_WANT_OPTIMIZE_HUGETLB_VMEMMAP select ARCH_WANTS_NO_INSTR + select ARCH_WANTS_THP_SWAP if HAVE_ARCH_TRANSPARENT_HUGEPAGE select BUILDTIME_TABLE_SORT select COMMON_CLK select CPU_PM @@ -174,7 +178,6 @@ config LOONGARCH select PCI_QUIRKS select PERF_USE_VMALLOC select RTC_LIB - select SMP select SPARSE_IRQ select SYSCTL_ARCH_UNALIGN_ALLOW select SYSCTL_ARCH_UNALIGN_NO_WARN @@ -420,6 +423,7 @@ config EFI_STUB config SCHED_SMT bool "SMT scheduler support" + depends on SMP default y help Improves scheduler's performance when there are multiple diff --git a/arch/loongarch/Makefile b/arch/loongarch/Makefile index df6caf7..4347915 100644 --- a/arch/loongarch/Makefile +++ b/arch/loongarch/Makefile @@ -101,7 +101,7 @@ ifdef CONFIG_OBJTOOL KBUILD_CFLAGS += -fno-jump-tables endif -KBUILD_RUSTFLAGS += --target=$(objtree)/scripts/target.json +KBUILD_RUSTFLAGS += --target=loongarch64-unknown-none-softfloat KBUILD_RUSTFLAGS_MODULE += -Crelocation-model=pic ifeq ($(CONFIG_RELOCATABLE),y) diff --git a/arch/loongarch/boot/dts/loongson-2k0500.dtsi b/arch/loongarch/boot/dts/loongson-2k0500.dtsi index 444779c..3b38ff8 100644 --- a/arch/loongarch/boot/dts/loongson-2k0500.dtsi +++ b/arch/loongarch/boot/dts/loongson-2k0500.dtsi @@ -6,6 +6,7 @@ /dts-v1/; #include +#include / { #address-cells = <2>; @@ -19,14 +20,15 @@ compatible = "loongson,la264"; device_type = "cpu"; reg = <0x0>; - clocks = <&cpu_clk>; + clocks = <&clk LOONGSON2_NODE_CLK>; }; }; - cpu_clk: cpu-clk { + ref_100m: clock-ref-100m { compatible = "fixed-clock"; #clock-cells = <0>; - clock-frequency = <500000000>; + clock-frequency = <100000000>; + clock-output-names = "ref_100m"; }; cpuintc: interrupt-controller { @@ -35,6 +37,28 @@ interrupt-controller; }; + thermal-zones { + cpu-thermal { + polling-delay-passive = <1000>; + polling-delay = <5000>; + thermal-sensors = <&tsensor 0>; + + trips { + cpu-alert { + temperature = <33000>; + hysteresis = <2000>; + type = "active"; + }; + + cpu-crit { + temperature = <85000>; + hysteresis = <5000>; + type = "critical"; + }; + }; + }; + }; + bus@10000000 { compatible = "simple-bus"; ranges = <0x0 0x10000000 0x0 0x10000000 0x0 0x10000000>, @@ -52,6 +76,54 @@ ranges = <1 0x0 0x0 0x16400000 0x4000>; }; + clk: clock-controller@1fe10400 { + compatible = "loongson,ls2k0500-clk"; + reg = <0x0 0x1fe10400 0x0 0x2c>; + #clock-cells = <1>; + clocks = <&ref_100m>; + clock-names = "ref_100m"; + }; + + dma-controller@1fe10c00 { + compatible = "loongson,ls2k0500-apbdma", "loongson,ls2k1000-apbdma"; + reg = <0 0x1fe10c00 0 0x8>; + interrupt-parent = <&eiointc>; + interrupts = <67>; + clocks = <&clk LOONGSON2_APB_CLK>; + #dma-cells = <1>; + status = "disabled"; + }; + + dma-controller@1fe10c10 { + compatible = "loongson,ls2k0500-apbdma", "loongson,ls2k1000-apbdma"; + reg = <0 0x1fe10c10 0 0x8>; + interrupt-parent = <&eiointc>; + interrupts = <68>; + clocks = <&clk LOONGSON2_APB_CLK>; + #dma-cells = <1>; + status = "disabled"; + }; + + dma-controller@1fe10c20 { + compatible = "loongson,ls2k0500-apbdma", "loongson,ls2k1000-apbdma"; + reg = <0 0x1fe10c20 0 0x8>; + interrupt-parent = <&eiointc>; + interrupts = <69>; + clocks = <&clk LOONGSON2_APB_CLK>; + #dma-cells = <1>; + status = "disabled"; + }; + + dma-controller@1fe10c30 { + compatible = "loongson,ls2k0500-apbdma", "loongson,ls2k1000-apbdma"; + reg = <0 0x1fe10c30 0 0x8>; + interrupt-parent = <&eiointc>; + interrupts = <70>; + clocks = <&clk LOONGSON2_APB_CLK>; + #dma-cells = <1>; + status = "disabled"; + }; + liointc0: interrupt-controller@1fe11400 { compatible = "loongson,liointc-2.0"; reg = <0x0 0x1fe11400 0x0 0x40>, @@ -139,6 +211,14 @@ status = "disabled"; }; + tsensor: thermal-sensor@1fe11500 { + compatible = "loongson,ls2k0500-thermal", "loongson,ls2k1000-thermal"; + reg = <0x0 0x1fe11500 0x0 0x30>; + interrupt-parent = <&liointc0>; + interrupts = <7 IRQ_TYPE_LEVEL_HIGH>; + #thermal-sensor-cells = <1>; + }; + uart0: serial@1ff40800 { compatible = "ns16550a"; reg = <0x0 0x1ff40800 0x0 0x10>; diff --git a/arch/loongarch/boot/dts/loongson-2k1000-ref.dts b/arch/loongarch/boot/dts/loongson-2k1000-ref.dts index ed4d324..8463fe0 100644 --- a/arch/loongarch/boot/dts/loongson-2k1000-ref.dts +++ b/arch/loongarch/boot/dts/loongson-2k1000-ref.dts @@ -113,10 +113,6 @@ status = "okay"; }; -&clk { - status = "okay"; -}; - &rtc0 { status = "okay"; }; diff --git a/arch/loongarch/boot/dts/loongson-2k1000.dtsi b/arch/loongarch/boot/dts/loongson-2k1000.dtsi index b6aeb1f..9218014 100644 --- a/arch/loongarch/boot/dts/loongson-2k1000.dtsi +++ b/arch/loongarch/boot/dts/loongson-2k1000.dtsi @@ -159,7 +159,6 @@ #clock-cells = <1>; clocks = <&ref_100m>; clock-names = "ref_100m"; - status = "disabled"; }; gpio0: gpio@1fe00500 { diff --git a/arch/loongarch/boot/dts/loongson-2k2000.dtsi b/arch/loongarch/boot/dts/loongson-2k2000.dtsi index 9eab2d0..0953c57 100644 --- a/arch/loongarch/boot/dts/loongson-2k2000.dtsi +++ b/arch/loongarch/boot/dts/loongson-2k2000.dtsi @@ -6,6 +6,7 @@ /dts-v1/; #include +#include / { #address-cells = <2>; @@ -19,21 +20,22 @@ compatible = "loongson,la364"; device_type = "cpu"; reg = <0x0>; - clocks = <&cpu_clk>; + clocks = <&clk LOONGSON2_NODE_CLK>; }; cpu1: cpu@2 { compatible = "loongson,la364"; device_type = "cpu"; reg = <0x1>; - clocks = <&cpu_clk>; + clocks = <&clk LOONGSON2_NODE_CLK>; }; }; - cpu_clk: cpu-clk { + ref_100m: clock-ref-100m { compatible = "fixed-clock"; #clock-cells = <0>; - clock-frequency = <1400000000>; + clock-frequency = <100000000>; + clock-output-names = "ref_100m"; }; cpuintc: interrupt-controller { @@ -42,6 +44,28 @@ interrupt-controller; }; + thermal-zones { + cpu-thermal { + polling-delay-passive = <1000>; + polling-delay = <5000>; + thermal-sensors = <&tsensor 0>; + + trips { + cpu-alert { + temperature = <40000>; + hysteresis = <2000>; + type = "active"; + }; + + cpu-crit { + temperature = <85000>; + hysteresis = <5000>; + type = "critical"; + }; + }; + }; + }; + bus@10000000 { compatible = "simple-bus"; ranges = <0x0 0x10000000 0x0 0x10000000 0x0 0x10000000>, @@ -58,6 +82,14 @@ ranges = <1 0x0 0x0 0x18400000 0x4000>; }; + clk: clock-controller@10010480 { + compatible = "loongson,ls2k2000-clk"; + reg = <0x0 0x10010480 0x0 0x100>; + #clock-cells = <1>; + clocks = <&ref_100m>; + clock-names = "ref_100m"; + }; + pmc: power-management@100d0000 { compatible = "loongson,ls2k2000-pmc", "loongson,ls2k0500-pmc", "syscon"; reg = <0x0 0x100d0000 0x0 0x58>; @@ -80,6 +112,15 @@ }; }; + tsensor: thermal-sensor@1fe01460 { + compatible = "loongson,ls2k2000-thermal"; + reg = <0x0 0x1fe01460 0x0 0x30>, + <0x0 0x1fe0019c 0x0 0x4>; + interrupt-parent = <&liointc>; + interrupts = <7 IRQ_TYPE_LEVEL_HIGH>; + #thermal-sensor-cells = <1>; + }; + liointc: interrupt-controller@1fe01400 { compatible = "loongson,liointc-1.0"; reg = <0x0 0x1fe01400 0x0 0x64>; diff --git a/arch/loongarch/configs/loongson3_defconfig b/arch/loongarch/configs/loongson3_defconfig index fc0d89d..b4252c3 100644 --- a/arch/loongarch/configs/loongson3_defconfig +++ b/arch/loongarch/configs/loongson3_defconfig @@ -14,6 +14,10 @@ CONFIG_TASKSTATS=y CONFIG_TASK_DELAY_ACCT=y CONFIG_TASK_XACCT=y CONFIG_TASK_IO_ACCOUNTING=y +CONFIG_PSI=y +CONFIG_IKCONFIG=y +CONFIG_IKCONFIG_PROC=y +CONFIG_IKHEADERS=y CONFIG_LOG_BUF_SHIFT=18 CONFIG_NUMA_BALANCING=y CONFIG_MEMCG=y @@ -129,13 +133,22 @@ CONFIG_IP_MROUTE=y CONFIG_IP_MROUTE_MULTIPLE_TABLES=y CONFIG_IP_PIMSM_V1=y CONFIG_IP_PIMSM_V2=y +CONFIG_INET_AH=m CONFIG_INET_ESP=m +CONFIG_INET_ESP_OFFLOAD=m +CONFIG_INET_ESPINTCP=y +CONFIG_INET_IPCOMP=m CONFIG_INET_UDP_DIAG=y CONFIG_TCP_CONG_ADVANCED=y CONFIG_TCP_CONG_BBR=m CONFIG_IPV6_ROUTER_PREF=y CONFIG_IPV6_ROUTE_INFO=y +CONFIG_INET6_AH=m CONFIG_INET6_ESP=m +CONFIG_INET6_ESP_OFFLOAD=m +CONFIG_INET6_ESPINTCP=y +CONFIG_INET6_IPCOMP=m +CONFIG_IPV6_MULTIPLE_TABLES=y CONFIG_IPV6_MROUTE=y CONFIG_MPTCP=y CONFIG_NETWORK_PHY_TIMESTAMPING=y @@ -151,6 +164,8 @@ CONFIG_NF_CONNTRACK_PPTP=m CONFIG_NF_CONNTRACK_TFTP=m CONFIG_NF_CT_NETLINK=m CONFIG_NF_TABLES=m +CONFIG_NF_TABLES_INET=y +CONFIG_NFT_CT=m CONFIG_NFT_CONNLIMIT=m CONFIG_NFT_LOG=m CONFIG_NFT_LIMIT=m @@ -163,6 +178,7 @@ CONFIG_NFT_QUOTA=m CONFIG_NFT_REJECT=m CONFIG_NFT_COMPAT=m CONFIG_NFT_HASH=m +CONFIG_NFT_FIB_INET=m CONFIG_NFT_SOCKET=m CONFIG_NFT_OSF=m CONFIG_NFT_TPROXY=m @@ -259,6 +275,7 @@ CONFIG_IP_NF_ARPTABLES=m CONFIG_IP_NF_ARPFILTER=m CONFIG_IP_NF_ARP_MANGLE=m CONFIG_NF_TABLES_IPV6=y +CONFIG_NFT_FIB_IPV6=m CONFIG_IP6_NF_IPTABLES=y CONFIG_IP6_NF_MATCH_AH=m CONFIG_IP6_NF_MATCH_EUI64=m @@ -279,6 +296,7 @@ CONFIG_IP6_NF_NAT=m CONFIG_IP6_NF_TARGET_MASQUERADE=m CONFIG_IP6_NF_TARGET_NPT=m CONFIG_NF_TABLES_BRIDGE=m +CONFIG_NF_CONNTRACK_BRIDGE=m CONFIG_BRIDGE_NF_EBTABLES=m CONFIG_BRIDGE_EBT_BROUTE=m CONFIG_BRIDGE_EBT_T_FILTER=m @@ -549,6 +567,7 @@ CONFIG_NGBE=y CONFIG_TXGBE=y # CONFIG_NET_VENDOR_WIZNET is not set # CONFIG_NET_VENDOR_XILINX is not set +CONFIG_MOTORCOMM_PHY=y CONFIG_PPP=m CONFIG_PPP_BSDCOMP=m CONFIG_PPP_DEFLATE=m @@ -810,6 +829,7 @@ CONFIG_NTB_SWITCHTEC=m CONFIG_NTB_PERF=m CONFIG_NTB_TRANSPORT=m CONFIG_PWM=y +CONFIG_GENERIC_PHY=y CONFIG_USB4=y CONFIG_EXT2_FS=y CONFIG_EXT2_FS_XATTR=y @@ -875,10 +895,13 @@ CONFIG_UBIFS_FS=m CONFIG_UBIFS_FS_ADVANCED_COMPR=y CONFIG_CRAMFS=m CONFIG_SQUASHFS=y +CONFIG_SQUASHFS_FILE_DIRECT=y +CONFIG_SQUASHFS_CHOICE_DECOMP_BY_MOUNT=y CONFIG_SQUASHFS_XATTR=y CONFIG_SQUASHFS_LZ4=y CONFIG_SQUASHFS_LZO=y CONFIG_SQUASHFS_XZ=y +CONFIG_SQUASHFS_ZSTD=y CONFIG_MINIX_FS=m CONFIG_ROMFS_FS=m CONFIG_PSTORE=m @@ -960,3 +983,4 @@ CONFIG_DEBUG_FS=y CONFIG_SCHEDSTATS=y # CONFIG_DEBUG_PREEMPT is not set # CONFIG_FTRACE is not set +CONFIG_UNWINDER_ORC=y diff --git a/arch/loongarch/include/asm/acpi.h b/arch/loongarch/include/asm/acpi.h index 49e29b2..313f66f 100644 --- a/arch/loongarch/include/asm/acpi.h +++ b/arch/loongarch/include/asm/acpi.h @@ -8,6 +8,7 @@ #ifndef _ASM_LOONGARCH_ACPI_H #define _ASM_LOONGARCH_ACPI_H +#include #include #ifdef CONFIG_ACPI diff --git a/arch/loongarch/include/asm/asm-prototypes.h b/arch/loongarch/include/asm/asm-prototypes.h index cf8e1a4..51f224b 100644 --- a/arch/loongarch/include/asm/asm-prototypes.h +++ b/arch/loongarch/include/asm/asm-prototypes.h @@ -6,3 +6,9 @@ #include #include #include + +#ifdef CONFIG_ARCH_SUPPORTS_INT128 +__int128_t __ashlti3(__int128_t a, int b); +__int128_t __ashrti3(__int128_t a, int b); +__int128_t __lshrti3(__int128_t a, int b); +#endif diff --git a/arch/loongarch/include/asm/perf_event.h b/arch/loongarch/include/asm/perf_event.h index 52b6380..f948a06 100644 --- a/arch/loongarch/include/asm/perf_event.h +++ b/arch/loongarch/include/asm/perf_event.h @@ -13,8 +13,7 @@ #define perf_arch_fetch_caller_regs(regs, __ip) { \ (regs)->csr_era = (__ip); \ - (regs)->regs[3] = current_stack_pointer; \ - (regs)->regs[22] = (unsigned long) __builtin_frame_address(0); \ + (regs)->regs[3] = (unsigned long) __builtin_frame_address(0); \ } #endif /* __LOONGARCH_PERF_EVENT_H__ */ diff --git a/arch/loongarch/include/asm/smp.h b/arch/loongarch/include/asm/smp.h index 1c51bdf..278700c 100644 --- a/arch/loongarch/include/asm/smp.h +++ b/arch/loongarch/include/asm/smp.h @@ -6,6 +6,8 @@ #ifndef __ASM_SMP_H #define __ASM_SMP_H +#ifdef CONFIG_SMP + #include #include #include @@ -109,4 +111,8 @@ static inline void __cpu_die(unsigned int cpu) } #endif +#else /* !CONFIG_SMP */ +#define cpu_logical_map(cpu) 0 +#endif /* CONFIG_SMP */ + #endif /* __ASM_SMP_H */ diff --git a/arch/loongarch/kernel/machine_kexec.c b/arch/loongarch/kernel/machine_kexec.c index 2dcb9e0..8ae641d 100644 --- a/arch/loongarch/kernel/machine_kexec.c +++ b/arch/loongarch/kernel/machine_kexec.c @@ -225,6 +225,7 @@ void crash_smp_send_stop(void) void machine_shutdown(void) { +#ifdef CONFIG_SMP int cpu; /* All CPUs go to reboot_code_buffer */ @@ -232,7 +233,6 @@ void machine_shutdown(void) if (!cpu_online(cpu)) cpu_device_up(get_cpu_device(cpu)); -#ifdef CONFIG_SMP smp_call_function(kexec_shutdown_secondary, NULL, 0); #endif } diff --git a/arch/loongarch/lib/Makefile b/arch/loongarch/lib/Makefile index a77bf16..ccea3bb 100644 --- a/arch/loongarch/lib/Makefile +++ b/arch/loongarch/lib/Makefile @@ -6,6 +6,8 @@ lib-y += delay.o memset.o memcpy.o memmove.o \ clear_user.o copy_user.o csum.o dump_tlb.o unaligned.o +obj-$(CONFIG_ARCH_SUPPORTS_INT128) += tishift.o + obj-$(CONFIG_CPU_HAS_LSX) += xor_simd.o xor_simd_glue.o obj-$(CONFIG_FUNCTION_ERROR_INJECTION) += error-inject.o diff --git a/arch/loongarch/lib/tishift.S b/arch/loongarch/lib/tishift.S new file mode 100644 index 0000000..fa1d310 --- /dev/null +++ b/arch/loongarch/lib/tishift.S @@ -0,0 +1,56 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ + +#include +#include +#include + +SYM_FUNC_START(__ashlti3) + srli.d t2, a0, 1 + nor t3, zero, a2 + sll.d t1, a1, a2 + srl.d t2, t2, t3 + andi t0, a2, 64 + sll.d a0, a0, a2 + or t1, t2, t1 + maskeqz a1, a0, t0 + masknez a0, a0, t0 + masknez t0, t1, t0 + or a1, t0, a1 + jr ra +SYM_FUNC_END(__ashlti3) +EXPORT_SYMBOL(__ashlti3) + +SYM_FUNC_START(__ashrti3) + nor t3, zero, a2 + slli.d t2, a1, 1 + srl.d t1, a0, a2 + sll.d t2, t2, t3 + andi t0, a2, 64 + or t1, t2, t1 + sra.d a2, a1, a2 + srai.d a1, a1, 63 + maskeqz a0, a2, t0 + maskeqz a1, a1, t0 + masknez a2, a2, t0 + masknez t0, t1, t0 + or a1, a1, a2 + or a0, t0, a0 + jr ra +SYM_FUNC_END(__ashrti3) +EXPORT_SYMBOL(__ashrti3) + +SYM_FUNC_START(__lshrti3) + slli.d t2, a1, 1 + nor t3, zero, a2 + srl.d t1, a0, a2 + sll.d t2, t2, t3 + andi t0, a2, 64 + srl.d a1, a1, a2 + or t1, t2, t1 + maskeqz a0, a1, t0 + masknez a1, a1, t0 + masknez t0, t1, t0 + or a0, t0, a0 + jr ra +SYM_FUNC_END(__lshrti3) +EXPORT_SYMBOL(__lshrti3) diff --git a/arch/loongarch/mm/tlbex.S b/arch/loongarch/mm/tlbex.S index a44387b..c08682a 100644 --- a/arch/loongarch/mm/tlbex.S +++ b/arch/loongarch/mm/tlbex.S @@ -125,6 +125,8 @@ vmalloc_load: tlb_huge_update_load: #ifdef CONFIG_SMP ll.d ra, t1, 0 +#else + rotri.d ra, ra, 64 - (_PAGE_HUGE_SHIFT + 1) #endif andi t0, ra, _PAGE_PRESENT beqz t0, nopage_tlb_load @@ -135,7 +137,6 @@ tlb_huge_update_load: beqz t0, tlb_huge_update_load ori t0, ra, _PAGE_VALID #else - rotri.d ra, ra, 64 - (_PAGE_HUGE_SHIFT + 1) ori t0, ra, _PAGE_VALID st.d t0, t1, 0 #endif @@ -281,6 +282,8 @@ vmalloc_store: tlb_huge_update_store: #ifdef CONFIG_SMP ll.d ra, t1, 0 +#else + rotri.d ra, ra, 64 - (_PAGE_HUGE_SHIFT + 1) #endif andi t0, ra, _PAGE_PRESENT | _PAGE_WRITE xori t0, t0, _PAGE_PRESENT | _PAGE_WRITE @@ -292,7 +295,6 @@ tlb_huge_update_store: beqz t0, tlb_huge_update_store ori t0, ra, (_PAGE_VALID | _PAGE_DIRTY | _PAGE_MODIFIED) #else - rotri.d ra, ra, 64 - (_PAGE_HUGE_SHIFT + 1) ori t0, ra, (_PAGE_VALID | _PAGE_DIRTY | _PAGE_MODIFIED) st.d t0, t1, 0 #endif @@ -438,6 +440,8 @@ vmalloc_modify: tlb_huge_update_modify: #ifdef CONFIG_SMP ll.d ra, t1, 0 +#else + rotri.d ra, ra, 64 - (_PAGE_HUGE_SHIFT + 1) #endif andi t0, ra, _PAGE_WRITE beqz t0, nopage_tlb_modify @@ -448,7 +452,6 @@ tlb_huge_update_modify: beqz t0, tlb_huge_update_modify ori t0, ra, (_PAGE_VALID | _PAGE_DIRTY | _PAGE_MODIFIED) #else - rotri.d ra, ra, 64 - (_PAGE_HUGE_SHIFT + 1) ori t0, ra, (_PAGE_VALID | _PAGE_DIRTY | _PAGE_MODIFIED) st.d t0, t1, 0 #endif diff --git a/arch/loongarch/power/suspend.c b/arch/loongarch/power/suspend.c index 166d9e0..c9e5949 100644 --- a/arch/loongarch/power/suspend.c +++ b/arch/loongarch/power/suspend.c @@ -24,6 +24,7 @@ struct saved_registers { u64 kpgd; u32 pwctl0; u32 pwctl1; + u64 pcpu_base; }; static struct saved_registers saved_regs; @@ -36,6 +37,7 @@ void loongarch_common_suspend(void) saved_regs.pwctl1 = csr_read32(LOONGARCH_CSR_PWCTL1); saved_regs.ecfg = csr_read32(LOONGARCH_CSR_ECFG); saved_regs.euen = csr_read32(LOONGARCH_CSR_EUEN); + saved_regs.pcpu_base = csr_read64(PERCPU_BASE_KS); loongarch_suspend_addr = loongson_sysconf.suspend_addr; } @@ -44,7 +46,6 @@ void loongarch_common_resume(void) { sync_counter(); local_flush_tlb_all(); - csr_write64(per_cpu_offset(0), PERCPU_BASE_KS); csr_write64(eentry, LOONGARCH_CSR_EENTRY); csr_write64(eentry, LOONGARCH_CSR_MERRENTRY); csr_write64(tlbrentry, LOONGARCH_CSR_TLBRENTRY); @@ -55,6 +56,7 @@ void loongarch_common_resume(void) csr_write32(saved_regs.pwctl1, LOONGARCH_CSR_PWCTL1); csr_write32(saved_regs.ecfg, LOONGARCH_CSR_ECFG); csr_write32(saved_regs.euen, LOONGARCH_CSR_EUEN); + csr_write64(saved_regs.pcpu_base, PERCPU_BASE_KS); } int loongarch_acpi_suspend(void) diff --git a/rust/Makefile b/rust/Makefile index 73fbb6c..f70d5e2 100644 --- a/rust/Makefile +++ b/rust/Makefile @@ -426,7 +426,7 @@ $(obj)/core.o: private rustc_objcopy = $(foreach sym,$(redirect-intrinsics),--re $(obj)/core.o: private rustc_target_flags = $(core-cfgs) $(obj)/core.o: $(RUST_LIB_SRC)/core/src/lib.rs FORCE +$(call if_changed_dep,rustc_library) -ifneq ($(or $(CONFIG_X86_64),$(CONFIG_LOONGARCH)),) +ifdef CONFIG_X86_64 $(obj)/core.o: scripts/target.json endif diff --git a/scripts/Makefile b/scripts/Makefile index bc90520..fe56eee 100644 --- a/scripts/Makefile +++ b/scripts/Makefile @@ -12,7 +12,7 @@ hostprogs-always-$(CONFIG_SYSTEM_EXTRA_CERTIFICATE) += insert-sys-cert hostprogs-always-$(CONFIG_RUST_KERNEL_DOCTESTS) += rustdoc_test_builder hostprogs-always-$(CONFIG_RUST_KERNEL_DOCTESTS) += rustdoc_test_gen -ifneq ($(or $(CONFIG_X86_64),$(CONFIG_LOONGARCH)),) +ifdef CONFIG_X86_64 always-$(CONFIG_RUST) += target.json filechk_rust_target = $< < include/config/auto.conf diff --git a/scripts/generate_rust_target.rs b/scripts/generate_rust_target.rs index 3fcbc37..d30f612 100644 --- a/scripts/generate_rust_target.rs +++ b/scripts/generate_rust_target.rs @@ -164,12 +164,7 @@ fn main() { ts.push("llvm-target", "x86_64-linux-gnu"); ts.push("target-pointer-width", "64"); } else if cfg.has("LOONGARCH") { - ts.push("arch", "loongarch64"); - ts.push("data-layout", "e-m:e-p:64:64-i64:64-i128:128-n64-S128"); - ts.push("features", "-f,-d"); - ts.push("llvm-target", "loongarch64-linux-gnusf"); - ts.push("llvm-abiname", "lp64s"); - ts.push("target-pointer-width", "64"); + panic!("loongarch uses the builtin rustc loongarch64-unknown-none-softfloat target"); } else { panic!("Unsupported architecture"); }