diff options
Diffstat (limited to 'arch/loongarch')
55 files changed, 277 insertions, 781 deletions
diff --git a/arch/loongarch/Kconfig b/arch/loongarch/Kconfig index 4b19f93379a1..03ee9c2fd3d5 100644 --- a/arch/loongarch/Kconfig +++ b/arch/loongarch/Kconfig @@ -15,7 +15,6 @@ config LOONGARCH select ARCH_ENABLE_THP_MIGRATION if TRANSPARENT_HUGEPAGE select ARCH_HAS_ACPI_TABLE_UPGRADE if ACPI select ARCH_HAS_CPU_FINALIZE_INIT - select ARCH_HAS_CRC32 select ARCH_HAS_CURRENT_STACK_POINTER select ARCH_HAS_DEBUG_VM_PGTABLE select ARCH_HAS_FAST_MULTIPLIER @@ -120,11 +119,11 @@ config LOONGARCH select HAVE_ARCH_KASAN select HAVE_ARCH_KFENCE select HAVE_ARCH_KGDB if PERF_EVENTS + select HAVE_ARCH_KSTACK_ERASE select HAVE_ARCH_MMAP_RND_BITS if MMU select HAVE_ARCH_RANDOMIZE_KSTACK_OFFSET select HAVE_ARCH_SECCOMP select HAVE_ARCH_SECCOMP_FILTER - select HAVE_ARCH_STACKLEAK select HAVE_ARCH_TRACEHOOK select HAVE_ARCH_TRANSPARENT_HUGEPAGE select HAVE_ARCH_USERFAULTFD_MINOR if USERFAULTFD @@ -144,7 +143,6 @@ config LOONGARCH select HAVE_EXIT_THREAD select HAVE_GUP_FAST select HAVE_FTRACE_GRAPH_FUNC - select HAVE_FTRACE_MCOUNT_RECORD select HAVE_FUNCTION_ARG_ACCESS_API select HAVE_FUNCTION_ERROR_INJECTION select HAVE_FUNCTION_GRAPH_FREGS diff --git a/arch/loongarch/configs/loongson3_defconfig b/arch/loongarch/configs/loongson3_defconfig index 0d59af6007b7..68e337aed2bb 100644 --- a/arch/loongarch/configs/loongson3_defconfig +++ b/arch/loongarch/configs/loongson3_defconfig @@ -225,7 +225,6 @@ CONFIG_NETFILTER_XT_MATCH_CONNLIMIT=m CONFIG_NETFILTER_XT_MATCH_CONNMARK=m CONFIG_NETFILTER_XT_MATCH_CONNTRACK=m CONFIG_NETFILTER_XT_MATCH_CPU=m -CONFIG_NETFILTER_XT_MATCH_DCCP=m CONFIG_NETFILTER_XT_MATCH_DEVGROUP=m CONFIG_NETFILTER_XT_MATCH_DSCP=m CONFIG_NETFILTER_XT_MATCH_ESP=m diff --git a/arch/loongarch/include/asm/Kbuild b/arch/loongarch/include/asm/Kbuild index 80ddb5edb845..b04d2cef935f 100644 --- a/arch/loongarch/include/asm/Kbuild +++ b/arch/loongarch/include/asm/Kbuild @@ -10,5 +10,4 @@ generic-y += user.h generic-y += ioctl.h generic-y += mmzone.h generic-y += statfs.h -generic-y += param.h generic-y += text-patching.h diff --git a/arch/loongarch/include/asm/addrspace.h b/arch/loongarch/include/asm/addrspace.h index fe198b473f84..e739dbc6329d 100644 --- a/arch/loongarch/include/asm/addrspace.h +++ b/arch/loongarch/include/asm/addrspace.h @@ -18,12 +18,12 @@ /* * This gives the physical RAM offset. */ -#ifndef __ASSEMBLY__ +#ifndef __ASSEMBLER__ #ifndef PHYS_OFFSET #define PHYS_OFFSET _UL(0) #endif extern unsigned long vm_map_base; -#endif /* __ASSEMBLY__ */ +#endif /* __ASSEMBLER__ */ #ifndef IO_BASE #define IO_BASE CSR_DMW0_BASE @@ -66,7 +66,7 @@ extern unsigned long vm_map_base; #define FIXADDR_TOP ((unsigned long)(long)(int)0xfffe0000) #endif -#ifdef __ASSEMBLY__ +#ifdef __ASSEMBLER__ #define _ATYPE_ #define _ATYPE32_ #define _ATYPE64_ @@ -85,7 +85,7 @@ extern unsigned long vm_map_base; /* * 32/64-bit LoongArch address spaces */ -#ifdef __ASSEMBLY__ +#ifdef __ASSEMBLER__ #define _ACAST32_ #define _ACAST64_ #else diff --git a/arch/loongarch/include/asm/alternative-asm.h b/arch/loongarch/include/asm/alternative-asm.h index ff3d10ac393f..7dc29bd9b2f0 100644 --- a/arch/loongarch/include/asm/alternative-asm.h +++ b/arch/loongarch/include/asm/alternative-asm.h @@ -2,7 +2,7 @@ #ifndef _ASM_ALTERNATIVE_ASM_H #define _ASM_ALTERNATIVE_ASM_H -#ifdef __ASSEMBLY__ +#ifdef __ASSEMBLER__ #include <asm/asm.h> @@ -77,6 +77,6 @@ .previous .endm -#endif /* __ASSEMBLY__ */ +#endif /* __ASSEMBLER__ */ #endif /* _ASM_ALTERNATIVE_ASM_H */ diff --git a/arch/loongarch/include/asm/alternative.h b/arch/loongarch/include/asm/alternative.h index cee7b29785ab..b5bae21fb3c8 100644 --- a/arch/loongarch/include/asm/alternative.h +++ b/arch/loongarch/include/asm/alternative.h @@ -2,7 +2,7 @@ #ifndef _ASM_ALTERNATIVE_H #define _ASM_ALTERNATIVE_H -#ifndef __ASSEMBLY__ +#ifndef __ASSEMBLER__ #include <linux/types.h> #include <linux/stddef.h> @@ -106,6 +106,6 @@ extern void apply_alternatives(struct alt_instr *start, struct alt_instr *end); #define alternative_2(oldinstr, newinstr1, feature1, newinstr2, feature2) \ (asm volatile(ALTERNATIVE_2(oldinstr, newinstr1, feature1, newinstr2, feature2) ::: "memory")) -#endif /* __ASSEMBLY__ */ +#endif /* __ASSEMBLER__ */ #endif /* _ASM_ALTERNATIVE_H */ diff --git a/arch/loongarch/include/asm/asm-extable.h b/arch/loongarch/include/asm/asm-extable.h index df05005f2b80..d60bdf2e6377 100644 --- a/arch/loongarch/include/asm/asm-extable.h +++ b/arch/loongarch/include/asm/asm-extable.h @@ -7,7 +7,7 @@ #define EX_TYPE_UACCESS_ERR_ZERO 2 #define EX_TYPE_BPF 3 -#ifdef __ASSEMBLY__ +#ifdef __ASSEMBLER__ #define __ASM_EXTABLE_RAW(insn, fixup, type, data) \ .pushsection __ex_table, "a"; \ @@ -22,7 +22,7 @@ __ASM_EXTABLE_RAW(\insn, \fixup, EX_TYPE_FIXUP, 0) .endm -#else /* __ASSEMBLY__ */ +#else /* __ASSEMBLER__ */ #include <linux/bits.h> #include <linux/stringify.h> @@ -60,6 +60,6 @@ #define _ASM_EXTABLE_UACCESS_ERR(insn, fixup, err) \ _ASM_EXTABLE_UACCESS_ERR_ZERO(insn, fixup, err, zero) -#endif /* __ASSEMBLY__ */ +#endif /* __ASSEMBLER__ */ #endif /* __ASM_ASM_EXTABLE_H */ diff --git a/arch/loongarch/include/asm/asm.h b/arch/loongarch/include/asm/asm.h index f591b3245def..f018d26fc995 100644 --- a/arch/loongarch/include/asm/asm.h +++ b/arch/loongarch/include/asm/asm.h @@ -110,7 +110,7 @@ #define LONG_SRA srai.w #define LONG_SRAV sra.w -#ifdef __ASSEMBLY__ +#ifdef __ASSEMBLER__ #define LONG .word #endif #define LONGSIZE 4 @@ -131,7 +131,7 @@ #define LONG_SRA srai.d #define LONG_SRAV sra.d -#ifdef __ASSEMBLY__ +#ifdef __ASSEMBLER__ #define LONG .dword #endif #define LONGSIZE 8 @@ -158,7 +158,7 @@ #define PTR_SCALESHIFT 2 -#ifdef __ASSEMBLY__ +#ifdef __ASSEMBLER__ #define PTR .word #endif #define PTRSIZE 4 @@ -181,7 +181,7 @@ #define PTR_SCALESHIFT 3 -#ifdef __ASSEMBLY__ +#ifdef __ASSEMBLER__ #define PTR .dword #endif #define PTRSIZE 8 diff --git a/arch/loongarch/include/asm/cpu.h b/arch/loongarch/include/asm/cpu.h index 98cf4d7b4b0a..dfb982fe8701 100644 --- a/arch/loongarch/include/asm/cpu.h +++ b/arch/loongarch/include/asm/cpu.h @@ -46,7 +46,7 @@ #define PRID_PRODUCT_MASK 0x0fff -#if !defined(__ASSEMBLY__) +#if !defined(__ASSEMBLER__) enum cpu_type_enum { CPU_UNKNOWN, @@ -55,7 +55,7 @@ enum cpu_type_enum { CPU_LAST }; -#endif /* !__ASSEMBLY */ +#endif /* !__ASSEMBLER__ */ /* * ISA Level encodings diff --git a/arch/loongarch/include/asm/ftrace.h b/arch/loongarch/include/asm/ftrace.h index 6e0a99763a9a..f4caaf764f9e 100644 --- a/arch/loongarch/include/asm/ftrace.h +++ b/arch/loongarch/include/asm/ftrace.h @@ -14,7 +14,7 @@ #define MCOUNT_INSN_SIZE 4 /* sizeof mcount call */ -#ifndef __ASSEMBLY__ +#ifndef __ASSEMBLER__ #ifndef CONFIG_DYNAMIC_FTRACE @@ -84,7 +84,7 @@ __arch_ftrace_set_direct_caller(struct pt_regs *regs, unsigned long addr) #endif -#endif /* __ASSEMBLY__ */ +#endif /* __ASSEMBLER__ */ #endif /* CONFIG_FUNCTION_TRACER */ diff --git a/arch/loongarch/include/asm/gpr-num.h b/arch/loongarch/include/asm/gpr-num.h index 996038da806d..af95b941f48b 100644 --- a/arch/loongarch/include/asm/gpr-num.h +++ b/arch/loongarch/include/asm/gpr-num.h @@ -2,7 +2,7 @@ #ifndef __ASM_GPR_NUM_H #define __ASM_GPR_NUM_H -#ifdef __ASSEMBLY__ +#ifdef __ASSEMBLER__ .equ .L__gpr_num_zero, 0 .irp num,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31 @@ -25,7 +25,7 @@ .equ .L__gpr_num_$s\num, 23 + \num .endr -#else /* __ASSEMBLY__ */ +#else /* __ASSEMBLER__ */ #define __DEFINE_ASM_GPR_NUMS \ " .equ .L__gpr_num_zero, 0\n" \ @@ -47,6 +47,6 @@ " .equ .L__gpr_num_$s\\num, 23 + \\num\n" \ " .endr\n" \ -#endif /* __ASSEMBLY__ */ +#endif /* __ASSEMBLER__ */ #endif /* __ASM_GPR_NUM_H */ diff --git a/arch/loongarch/include/asm/irqflags.h b/arch/loongarch/include/asm/irqflags.h index 003172b8406b..620163628a7f 100644 --- a/arch/loongarch/include/asm/irqflags.h +++ b/arch/loongarch/include/asm/irqflags.h @@ -5,7 +5,7 @@ #ifndef _ASM_IRQFLAGS_H #define _ASM_IRQFLAGS_H -#ifndef __ASSEMBLY__ +#ifndef __ASSEMBLER__ #include <linux/compiler.h> #include <linux/stringify.h> @@ -80,6 +80,6 @@ static inline int arch_irqs_disabled(void) return arch_irqs_disabled_flags(arch_local_save_flags()); } -#endif /* #ifndef __ASSEMBLY__ */ +#endif /* #ifndef __ASSEMBLER__ */ #endif /* _ASM_IRQFLAGS_H */ diff --git a/arch/loongarch/include/asm/jump_label.h b/arch/loongarch/include/asm/jump_label.h index 8a924bd69d19..4000c7603d8e 100644 --- a/arch/loongarch/include/asm/jump_label.h +++ b/arch/loongarch/include/asm/jump_label.h @@ -7,7 +7,7 @@ #ifndef __ASM_JUMP_LABEL_H #define __ASM_JUMP_LABEL_H -#ifndef __ASSEMBLY__ +#ifndef __ASSEMBLER__ #include <linux/types.h> @@ -50,5 +50,5 @@ l_yes: return true; } -#endif /* __ASSEMBLY__ */ +#endif /* __ASSEMBLER__ */ #endif /* __ASM_JUMP_LABEL_H */ diff --git a/arch/loongarch/include/asm/kasan.h b/arch/loongarch/include/asm/kasan.h index 7f52bd31b9d4..62f139a9c87d 100644 --- a/arch/loongarch/include/asm/kasan.h +++ b/arch/loongarch/include/asm/kasan.h @@ -2,7 +2,7 @@ #ifndef __ASM_KASAN_H #define __ASM_KASAN_H -#ifndef __ASSEMBLY__ +#ifndef __ASSEMBLER__ #include <linux/linkage.h> #include <linux/mmzone.h> diff --git a/arch/loongarch/include/asm/kvm_host.h b/arch/loongarch/include/asm/kvm_host.h index a3c4cc46c892..0cecbd038bb3 100644 --- a/arch/loongarch/include/asm/kvm_host.h +++ b/arch/loongarch/include/asm/kvm_host.h @@ -50,12 +50,6 @@ struct kvm_vm_stat { struct kvm_vm_stat_generic generic; u64 pages; u64 hugepages; - u64 ipi_read_exits; - u64 ipi_write_exits; - u64 eiointc_read_exits; - u64 eiointc_write_exits; - u64 pch_pic_read_exits; - u64 pch_pic_write_exits; }; struct kvm_vcpu_stat { @@ -65,6 +59,12 @@ struct kvm_vcpu_stat { u64 cpucfg_exits; u64 signal_exits; u64 hypercall_exits; + u64 ipi_read_exits; + u64 ipi_write_exits; + u64 eiointc_read_exits; + u64 eiointc_write_exits; + u64 pch_pic_read_exits; + u64 pch_pic_write_exits; }; #define KVM_MEM_HUGEPAGE_CAPABLE (1UL << 0) diff --git a/arch/loongarch/include/asm/loongarch.h b/arch/loongarch/include/asm/loongarch.h index d84dac88a584..a0994d226eff 100644 --- a/arch/loongarch/include/asm/loongarch.h +++ b/arch/loongarch/include/asm/loongarch.h @@ -9,15 +9,15 @@ #include <linux/linkage.h> #include <linux/types.h> -#ifndef __ASSEMBLY__ +#ifndef __ASSEMBLER__ #include <larchintrin.h> /* CPUCFG */ #define read_cpucfg(reg) __cpucfg(reg) -#endif /* !__ASSEMBLY__ */ +#endif /* !__ASSEMBLER__ */ -#ifdef __ASSEMBLY__ +#ifdef __ASSEMBLER__ /* LoongArch Registers */ #define REG_ZERO 0x0 @@ -53,7 +53,7 @@ #define REG_S7 0x1e #define REG_S8 0x1f -#endif /* __ASSEMBLY__ */ +#endif /* __ASSEMBLER__ */ /* Bit fields for CPUCFG registers */ #define LOONGARCH_CPUCFG0 0x0 @@ -171,7 +171,7 @@ * SW emulation for KVM hypervirsor, see arch/loongarch/include/uapi/asm/kvm_para.h */ -#ifndef __ASSEMBLY__ +#ifndef __ASSEMBLER__ /* CSR */ #define csr_read32(reg) __csrrd_w(reg) @@ -187,7 +187,7 @@ #define iocsr_write32(val, reg) __iocsrwr_w(val, reg) #define iocsr_write64(val, reg) __iocsrwr_d(val, reg) -#endif /* !__ASSEMBLY__ */ +#endif /* !__ASSEMBLER__ */ /* CSR register number */ @@ -1195,7 +1195,7 @@ #define LOONGARCH_IOCSR_EXTIOI_ROUTE_BASE 0x1c00 #define IOCSR_EXTIOI_VECTOR_NUM 256 -#ifndef __ASSEMBLY__ +#ifndef __ASSEMBLER__ static __always_inline u64 drdtime(void) { @@ -1357,7 +1357,7 @@ __BUILD_CSR_OP(tlbidx) #define clear_csr_estat(val) \ csr_xchg32(~(val), val, LOONGARCH_CSR_ESTAT) -#endif /* __ASSEMBLY__ */ +#endif /* __ASSEMBLER__ */ /* Generic EntryLo bit definitions */ #define ENTRYLO_V (_ULCAST_(1) << 0) diff --git a/arch/loongarch/include/asm/orc_types.h b/arch/loongarch/include/asm/orc_types.h index caf1f71a1057..d5fa98d1d177 100644 --- a/arch/loongarch/include/asm/orc_types.h +++ b/arch/loongarch/include/asm/orc_types.h @@ -34,7 +34,7 @@ #define ORC_TYPE_REGS 3 #define ORC_TYPE_REGS_PARTIAL 4 -#ifndef __ASSEMBLY__ +#ifndef __ASSEMBLER__ /* * This struct is more or less a vastly simplified version of the DWARF Call * Frame Information standard. It contains only the necessary parts of DWARF @@ -53,6 +53,6 @@ struct orc_entry { unsigned int type:3; unsigned int signal:1; }; -#endif /* __ASSEMBLY__ */ +#endif /* __ASSEMBLER__ */ #endif /* _ORC_TYPES_H */ diff --git a/arch/loongarch/include/asm/page.h b/arch/loongarch/include/asm/page.h index 7368f12b7cb1..a3aaf34fba16 100644 --- a/arch/loongarch/include/asm/page.h +++ b/arch/loongarch/include/asm/page.h @@ -15,7 +15,7 @@ #define HPAGE_MASK (~(HPAGE_SIZE - 1)) #define HUGETLB_PAGE_ORDER (HPAGE_SHIFT - PAGE_SHIFT) -#ifndef __ASSEMBLY__ +#ifndef __ASSEMBLER__ #include <linux/kernel.h> #include <linux/pfn.h> @@ -110,6 +110,6 @@ extern int __virt_addr_valid(volatile void *kaddr); #include <asm-generic/memory_model.h> #include <asm-generic/getorder.h> -#endif /* !__ASSEMBLY__ */ +#endif /* !__ASSEMBLER__ */ #endif /* _ASM_PAGE_H */ diff --git a/arch/loongarch/include/asm/pgtable-bits.h b/arch/loongarch/include/asm/pgtable-bits.h index 45bfc65a0c9f..7bbfb04a54cc 100644 --- a/arch/loongarch/include/asm/pgtable-bits.h +++ b/arch/loongarch/include/asm/pgtable-bits.h @@ -92,7 +92,7 @@ #define PAGE_KERNEL_WUC __pgprot(_PAGE_PRESENT | __READABLE | __WRITEABLE | \ _PAGE_GLOBAL | _PAGE_KERN | _CACHE_WUC) -#ifndef __ASSEMBLY__ +#ifndef __ASSEMBLER__ #define _PAGE_IOREMAP pgprot_val(PAGE_KERNEL_SUC) @@ -127,6 +127,6 @@ static inline pgprot_t pgprot_writecombine(pgprot_t _prot) return __pgprot(prot); } -#endif /* !__ASSEMBLY__ */ +#endif /* !__ASSEMBLER__ */ #endif /* _ASM_PGTABLE_BITS_H */ diff --git a/arch/loongarch/include/asm/pgtable.h b/arch/loongarch/include/asm/pgtable.h index b30185302c07..f2aeff544cee 100644 --- a/arch/loongarch/include/asm/pgtable.h +++ b/arch/loongarch/include/asm/pgtable.h @@ -55,7 +55,7 @@ #define USER_PTRS_PER_PGD ((TASK_SIZE64 / PGDIR_SIZE)?(TASK_SIZE64 / PGDIR_SIZE):1) -#ifndef __ASSEMBLY__ +#ifndef __ASSEMBLER__ #include <linux/mm_types.h> #include <linux/mmzone.h> @@ -618,6 +618,6 @@ static inline long pmd_protnone(pmd_t pmd) #define HAVE_ARCH_UNMAPPED_AREA #define HAVE_ARCH_UNMAPPED_AREA_TOPDOWN -#endif /* !__ASSEMBLY__ */ +#endif /* !__ASSEMBLER__ */ #endif /* _ASM_PGTABLE_H */ diff --git a/arch/loongarch/include/asm/prefetch.h b/arch/loongarch/include/asm/prefetch.h index 1672262a5e2e..0b168cdaae9a 100644 --- a/arch/loongarch/include/asm/prefetch.h +++ b/arch/loongarch/include/asm/prefetch.h @@ -8,7 +8,7 @@ #define Pref_Load 0 #define Pref_Store 8 -#ifdef __ASSEMBLY__ +#ifdef __ASSEMBLER__ .macro __pref hint addr #ifdef CONFIG_CPU_HAS_PREFETCH diff --git a/arch/loongarch/include/asm/smp.h b/arch/loongarch/include/asm/smp.h index ad0bd234a0f1..3a47f52959a8 100644 --- a/arch/loongarch/include/asm/smp.h +++ b/arch/loongarch/include/asm/smp.h @@ -39,7 +39,7 @@ int loongson_cpu_disable(void); void loongson_cpu_die(unsigned int cpu); #endif -static inline void plat_smp_setup(void) +static inline void __init plat_smp_setup(void) { loongson_smp_setup(); } diff --git a/arch/loongarch/include/asm/thread_info.h b/arch/loongarch/include/asm/thread_info.h index 4f5a9441754e..9dfa2ef00816 100644 --- a/arch/loongarch/include/asm/thread_info.h +++ b/arch/loongarch/include/asm/thread_info.h @@ -10,7 +10,7 @@ #ifdef __KERNEL__ -#ifndef __ASSEMBLY__ +#ifndef __ASSEMBLER__ #include <asm/processor.h> @@ -53,7 +53,7 @@ static inline struct thread_info *current_thread_info(void) register unsigned long current_stack_pointer __asm__("$sp"); -#endif /* !__ASSEMBLY__ */ +#endif /* !__ASSEMBLER__ */ /* thread information allocation */ #define THREAD_SIZE SZ_16K diff --git a/arch/loongarch/include/asm/types.h b/arch/loongarch/include/asm/types.h index baf15a0dcf8b..0edd731f3d6a 100644 --- a/arch/loongarch/include/asm/types.h +++ b/arch/loongarch/include/asm/types.h @@ -8,7 +8,7 @@ #include <asm-generic/int-ll64.h> #include <uapi/asm/types.h> -#ifdef __ASSEMBLY__ +#ifdef __ASSEMBLER__ #define _ULCAST_ #define _U64CAST_ #else diff --git a/arch/loongarch/include/asm/unwind_hints.h b/arch/loongarch/include/asm/unwind_hints.h index 2c68bc72736c..16c7f7e465a0 100644 --- a/arch/loongarch/include/asm/unwind_hints.h +++ b/arch/loongarch/include/asm/unwind_hints.h @@ -5,7 +5,7 @@ #include <linux/objtool.h> #include <asm/orc_types.h> -#ifdef __ASSEMBLY__ +#ifdef __ASSEMBLER__ .macro UNWIND_HINT_UNDEFINED UNWIND_HINT type=UNWIND_HINT_TYPE_UNDEFINED @@ -23,7 +23,7 @@ UNWIND_HINT sp_reg=ORC_REG_SP type=UNWIND_HINT_TYPE_CALL .endm -#else /* !__ASSEMBLY__ */ +#else /* !__ASSEMBLER__ */ #define UNWIND_HINT_SAVE \ UNWIND_HINT(UNWIND_HINT_TYPE_SAVE, 0, 0, 0) @@ -31,6 +31,6 @@ #define UNWIND_HINT_RESTORE \ UNWIND_HINT(UNWIND_HINT_TYPE_RESTORE, 0, 0, 0) -#endif /* !__ASSEMBLY__ */ +#endif /* !__ASSEMBLER__ */ #endif /* _ASM_LOONGARCH_UNWIND_HINTS_H */ diff --git a/arch/loongarch/include/asm/vdso/arch_data.h b/arch/loongarch/include/asm/vdso/arch_data.h index 322d0a5f1c84..395ec223bcbe 100644 --- a/arch/loongarch/include/asm/vdso/arch_data.h +++ b/arch/loongarch/include/asm/vdso/arch_data.h @@ -7,7 +7,7 @@ #ifndef _VDSO_ARCH_DATA_H #define _VDSO_ARCH_DATA_H -#ifndef __ASSEMBLY__ +#ifndef __ASSEMBLER__ #include <asm/asm.h> #include <asm/vdso.h> @@ -20,6 +20,6 @@ struct vdso_arch_data { struct vdso_pcpu_data pdata[NR_CPUS]; }; -#endif /* __ASSEMBLY__ */ +#endif /* __ASSEMBLER__ */ #endif diff --git a/arch/loongarch/include/asm/vdso/getrandom.h b/arch/loongarch/include/asm/vdso/getrandom.h index a81724b69f29..2ff05003c6e7 100644 --- a/arch/loongarch/include/asm/vdso/getrandom.h +++ b/arch/loongarch/include/asm/vdso/getrandom.h @@ -5,7 +5,7 @@ #ifndef __ASM_VDSO_GETRANDOM_H #define __ASM_VDSO_GETRANDOM_H -#ifndef __ASSEMBLY__ +#ifndef __ASSEMBLER__ #include <asm/unistd.h> #include <asm/vdso/vdso.h> @@ -28,6 +28,6 @@ static __always_inline ssize_t getrandom_syscall(void *_buffer, size_t _len, uns return ret; } -#endif /* !__ASSEMBLY__ */ +#endif /* !__ASSEMBLER__ */ #endif /* __ASM_VDSO_GETRANDOM_H */ diff --git a/arch/loongarch/include/asm/vdso/gettimeofday.h b/arch/loongarch/include/asm/vdso/gettimeofday.h index f15503e3336c..dcafabca9bb6 100644 --- a/arch/loongarch/include/asm/vdso/gettimeofday.h +++ b/arch/loongarch/include/asm/vdso/gettimeofday.h @@ -7,7 +7,7 @@ #ifndef __ASM_VDSO_GETTIMEOFDAY_H #define __ASM_VDSO_GETTIMEOFDAY_H -#ifndef __ASSEMBLY__ +#ifndef __ASSEMBLER__ #include <asm/unistd.h> #include <asm/vdso/vdso.h> @@ -89,6 +89,6 @@ static inline bool loongarch_vdso_hres_capable(void) } #define __arch_vdso_hres_capable loongarch_vdso_hres_capable -#endif /* !__ASSEMBLY__ */ +#endif /* !__ASSEMBLER__ */ #endif /* __ASM_VDSO_GETTIMEOFDAY_H */ diff --git a/arch/loongarch/include/asm/vdso/processor.h b/arch/loongarch/include/asm/vdso/processor.h index ef5770b343a0..1e255373b0b8 100644 --- a/arch/loongarch/include/asm/vdso/processor.h +++ b/arch/loongarch/include/asm/vdso/processor.h @@ -5,10 +5,10 @@ #ifndef __ASM_VDSO_PROCESSOR_H #define __ASM_VDSO_PROCESSOR_H -#ifndef __ASSEMBLY__ +#ifndef __ASSEMBLER__ #define cpu_relax() barrier() -#endif /* __ASSEMBLY__ */ +#endif /* __ASSEMBLER__ */ #endif /* __ASM_VDSO_PROCESSOR_H */ diff --git a/arch/loongarch/include/asm/vdso/vdso.h b/arch/loongarch/include/asm/vdso/vdso.h index 50c65fb29daf..04bd2d452876 100644 --- a/arch/loongarch/include/asm/vdso/vdso.h +++ b/arch/loongarch/include/asm/vdso/vdso.h @@ -7,7 +7,7 @@ #ifndef _ASM_VDSO_VDSO_H #define _ASM_VDSO_VDSO_H -#ifndef __ASSEMBLY__ +#ifndef __ASSEMBLER__ #include <asm/asm.h> #include <asm/page.h> @@ -16,6 +16,6 @@ #define VVAR_SIZE (VDSO_NR_PAGES << PAGE_SHIFT) -#endif /* __ASSEMBLY__ */ +#endif /* __ASSEMBLER__ */ #endif diff --git a/arch/loongarch/include/asm/vdso/vsyscall.h b/arch/loongarch/include/asm/vdso/vsyscall.h index 1140b54b4bc8..558eb9dfda52 100644 --- a/arch/loongarch/include/asm/vdso/vsyscall.h +++ b/arch/loongarch/include/asm/vdso/vsyscall.h @@ -2,13 +2,13 @@ #ifndef __ASM_VDSO_VSYSCALL_H #define __ASM_VDSO_VSYSCALL_H -#ifndef __ASSEMBLY__ +#ifndef __ASSEMBLER__ #include <vdso/datapage.h> /* The asm-generic header needs to be included after the definitions above */ #include <asm-generic/vdso/vsyscall.h> -#endif /* !__ASSEMBLY__ */ +#endif /* !__ASSEMBLER__ */ #endif /* __ASM_VDSO_VSYSCALL_H */ diff --git a/arch/loongarch/kernel/acpi.c b/arch/loongarch/kernel/acpi.c index a54cd6fd3796..1367ca759468 100644 --- a/arch/loongarch/kernel/acpi.c +++ b/arch/loongarch/kernel/acpi.c @@ -10,6 +10,7 @@ #include <linux/init.h> #include <linux/acpi.h> #include <linux/efi-bgrt.h> +#include <linux/export.h> #include <linux/irq.h> #include <linux/irqdomain.h> #include <linux/memblock.h> diff --git a/arch/loongarch/kernel/alternative.c b/arch/loongarch/kernel/alternative.c index 4ad13847e962..0e0c766df1e3 100644 --- a/arch/loongarch/kernel/alternative.c +++ b/arch/loongarch/kernel/alternative.c @@ -1,4 +1,5 @@ // SPDX-License-Identifier: GPL-2.0-only +#include <linux/export.h> #include <linux/mm.h> #include <linux/module.h> #include <asm/alternative.h> diff --git a/arch/loongarch/kernel/efi.c b/arch/loongarch/kernel/efi.c index de21e72759ee..860a3bc030e0 100644 --- a/arch/loongarch/kernel/efi.c +++ b/arch/loongarch/kernel/efi.c @@ -144,6 +144,18 @@ void __init efi_init(void) if (efi_memmap_init_early(&data) < 0) panic("Unable to map EFI memory map.\n"); + /* + * Reserve the physical memory region occupied by the EFI + * memory map table (header + descriptors). This is crucial + * for kdump, as the kdump kernel relies on this original + * memmap passed by the bootloader. Without reservation, + * this region could be overwritten by the primary kernel. + * Also, set the EFI_PRESERVE_BS_REGIONS flag to indicate that + * critical boot services code/data regions like this are preserved. + */ + memblock_reserve((phys_addr_t)boot_memmap, sizeof(*tbl) + data.size); + set_bit(EFI_PRESERVE_BS_REGIONS, &efi.flags); + early_memunmap(tbl, sizeof(*tbl)); } diff --git a/arch/loongarch/kernel/elf.c b/arch/loongarch/kernel/elf.c index 0fa81ced28dc..3d98c6aa00db 100644 --- a/arch/loongarch/kernel/elf.c +++ b/arch/loongarch/kernel/elf.c @@ -6,7 +6,6 @@ #include <linux/binfmts.h> #include <linux/elf.h> -#include <linux/export.h> #include <linux/sched.h> #include <asm/cpu-features.h> diff --git a/arch/loongarch/kernel/kfpu.c b/arch/loongarch/kernel/kfpu.c index 4c476904227f..141b49bd989c 100644 --- a/arch/loongarch/kernel/kfpu.c +++ b/arch/loongarch/kernel/kfpu.c @@ -4,6 +4,7 @@ */ #include <linux/cpu.h> +#include <linux/export.h> #include <linux/init.h> #include <asm/fpu.h> #include <asm/smp.h> diff --git a/arch/loongarch/kernel/paravirt.c b/arch/loongarch/kernel/paravirt.c index e5a39bbad078..b1b51f920b23 100644 --- a/arch/loongarch/kernel/paravirt.c +++ b/arch/loongarch/kernel/paravirt.c @@ -1,5 +1,4 @@ // SPDX-License-Identifier: GPL-2.0 -#include <linux/export.h> #include <linux/types.h> #include <linux/interrupt.h> #include <linux/irq_work.h> diff --git a/arch/loongarch/kernel/ptrace.c b/arch/loongarch/kernel/ptrace.c index 5e2402cfcab0..8edd0954e55a 100644 --- a/arch/loongarch/kernel/ptrace.c +++ b/arch/loongarch/kernel/ptrace.c @@ -864,7 +864,7 @@ enum loongarch_regset { static const struct user_regset loongarch64_regsets[] = { [REGSET_GPR] = { - .core_note_type = NT_PRSTATUS, + USER_REGSET_NOTE_TYPE(PRSTATUS), .n = ELF_NGREG, .size = sizeof(elf_greg_t), .align = sizeof(elf_greg_t), @@ -872,7 +872,7 @@ static const struct user_regset loongarch64_regsets[] = { .set = gpr_set, }, [REGSET_FPR] = { - .core_note_type = NT_PRFPREG, + USER_REGSET_NOTE_TYPE(PRFPREG), .n = ELF_NFPREG, .size = sizeof(elf_fpreg_t), .align = sizeof(elf_fpreg_t), @@ -880,7 +880,7 @@ static const struct user_regset loongarch64_regsets[] = { .set = fpr_set, }, [REGSET_CPUCFG] = { - .core_note_type = NT_LOONGARCH_CPUCFG, + USER_REGSET_NOTE_TYPE(LOONGARCH_CPUCFG), .n = 64, .size = sizeof(u32), .align = sizeof(u32), @@ -889,7 +889,7 @@ static const struct user_regset loongarch64_regsets[] = { }, #ifdef CONFIG_CPU_HAS_LSX [REGSET_LSX] = { - .core_note_type = NT_LOONGARCH_LSX, + USER_REGSET_NOTE_TYPE(LOONGARCH_LSX), .n = NUM_FPU_REGS, .size = 16, .align = 16, @@ -899,7 +899,7 @@ static const struct user_regset loongarch64_regsets[] = { #endif #ifdef CONFIG_CPU_HAS_LASX [REGSET_LASX] = { - .core_note_type = NT_LOONGARCH_LASX, + USER_REGSET_NOTE_TYPE(LOONGARCH_LASX), .n = NUM_FPU_REGS, .size = 32, .align = 32, @@ -909,7 +909,7 @@ static const struct user_regset loongarch64_regsets[] = { #endif #ifdef CONFIG_CPU_HAS_LBT [REGSET_LBT] = { - .core_note_type = NT_LOONGARCH_LBT, + USER_REGSET_NOTE_TYPE(LOONGARCH_LBT), .n = 5, .size = sizeof(u64), .align = sizeof(u64), @@ -919,7 +919,7 @@ static const struct user_regset loongarch64_regsets[] = { #endif #ifdef CONFIG_HAVE_HW_BREAKPOINT [REGSET_HW_BREAK] = { - .core_note_type = NT_LOONGARCH_HW_BREAK, + USER_REGSET_NOTE_TYPE(LOONGARCH_HW_BREAK), .n = sizeof(struct user_watch_state_v2) / sizeof(u32), .size = sizeof(u32), .align = sizeof(u32), @@ -927,7 +927,7 @@ static const struct user_regset loongarch64_regsets[] = { .set = hw_break_set, }, [REGSET_HW_WATCH] = { - .core_note_type = NT_LOONGARCH_HW_WATCH, + USER_REGSET_NOTE_TYPE(LOONGARCH_HW_WATCH), .n = sizeof(struct user_watch_state_v2) / sizeof(u32), .size = sizeof(u32), .align = sizeof(u32), diff --git a/arch/loongarch/kernel/time.c b/arch/loongarch/kernel/time.c index bc75a3a69fc8..367906b10f81 100644 --- a/arch/loongarch/kernel/time.c +++ b/arch/loongarch/kernel/time.c @@ -102,7 +102,7 @@ static int constant_timer_next_event(unsigned long delta, struct clock_event_dev return 0; } -static unsigned long __init get_loops_per_jiffy(void) +static unsigned long get_loops_per_jiffy(void) { unsigned long lpj = (unsigned long)const_clock_freq; diff --git a/arch/loongarch/kernel/traps.c b/arch/loongarch/kernel/traps.c index 47fc2de6d150..3d9be6ca7ec5 100644 --- a/arch/loongarch/kernel/traps.c +++ b/arch/loongarch/kernel/traps.c @@ -13,6 +13,7 @@ #include <linux/kernel.h> #include <linux/kexec.h> #include <linux/module.h> +#include <linux/export.h> #include <linux/extable.h> #include <linux/mm.h> #include <linux/sched/mm.h> diff --git a/arch/loongarch/kernel/unwind_guess.c b/arch/loongarch/kernel/unwind_guess.c index 98379b7d4147..08d7951b2f60 100644 --- a/arch/loongarch/kernel/unwind_guess.c +++ b/arch/loongarch/kernel/unwind_guess.c @@ -3,6 +3,7 @@ * Copyright (C) 2022 Loongson Technology Corporation Limited */ #include <asm/unwind.h> +#include <linux/export.h> unsigned long unwind_get_return_address(struct unwind_state *state) { diff --git a/arch/loongarch/kernel/unwind_orc.c b/arch/loongarch/kernel/unwind_orc.c index d623935a7547..0005be49b056 100644 --- a/arch/loongarch/kernel/unwind_orc.c +++ b/arch/loongarch/kernel/unwind_orc.c @@ -1,6 +1,7 @@ // SPDX-License-Identifier: GPL-2.0-only -#include <linux/objtool.h> +#include <linux/export.h> #include <linux/module.h> +#include <linux/objtool.h> #include <linux/sort.h> #include <asm/exception.h> #include <asm/orc_header.h> diff --git a/arch/loongarch/kernel/unwind_prologue.c b/arch/loongarch/kernel/unwind_prologue.c index 929ae240280a..729e775bd40d 100644 --- a/arch/loongarch/kernel/unwind_prologue.c +++ b/arch/loongarch/kernel/unwind_prologue.c @@ -3,6 +3,7 @@ * Copyright (C) 2022 Loongson Technology Corporation Limited */ #include <linux/cpumask.h> +#include <linux/export.h> #include <linux/ftrace.h> #include <linux/kallsyms.h> diff --git a/arch/loongarch/kvm/exit.c b/arch/loongarch/kvm/exit.c index fa52251b3bf1..2ce41f93b2a4 100644 --- a/arch/loongarch/kvm/exit.c +++ b/arch/loongarch/kvm/exit.c @@ -289,9 +289,11 @@ static int kvm_trap_handle_gspr(struct kvm_vcpu *vcpu) er = EMULATE_FAIL; switch (((inst.word >> 24) & 0xff)) { case 0x0: /* CPUCFG GSPR */ + trace_kvm_exit_cpucfg(vcpu, KVM_TRACE_EXIT_CPUCFG); er = kvm_emu_cpucfg(vcpu, inst); break; case 0x4: /* CSR{RD,WR,XCHG} GSPR */ + trace_kvm_exit_csr(vcpu, KVM_TRACE_EXIT_CSR); er = kvm_handle_csr(vcpu, inst); break; case 0x6: /* Cache, Idle and IOCSR GSPR */ @@ -821,32 +823,25 @@ static int kvm_handle_lbt_disabled(struct kvm_vcpu *vcpu, int ecode) return RESUME_GUEST; } -static int kvm_send_pv_ipi(struct kvm_vcpu *vcpu) +static void kvm_send_pv_ipi(struct kvm_vcpu *vcpu) { - unsigned int min, cpu, i; - unsigned long ipi_bitmap; + unsigned int min, cpu; struct kvm_vcpu *dest; + DECLARE_BITMAP(ipi_bitmap, BITS_PER_LONG * 2) = { + kvm_read_reg(vcpu, LOONGARCH_GPR_A1), + kvm_read_reg(vcpu, LOONGARCH_GPR_A2) + }; min = kvm_read_reg(vcpu, LOONGARCH_GPR_A3); - for (i = 0; i < 2; i++, min += BITS_PER_LONG) { - ipi_bitmap = kvm_read_reg(vcpu, LOONGARCH_GPR_A1 + i); - if (!ipi_bitmap) + for_each_set_bit(cpu, ipi_bitmap, BITS_PER_LONG * 2) { + dest = kvm_get_vcpu_by_cpuid(vcpu->kvm, cpu + min); + if (!dest) continue; - cpu = find_first_bit((void *)&ipi_bitmap, BITS_PER_LONG); - while (cpu < BITS_PER_LONG) { - dest = kvm_get_vcpu_by_cpuid(vcpu->kvm, cpu + min); - cpu = find_next_bit((void *)&ipi_bitmap, BITS_PER_LONG, cpu + 1); - if (!dest) - continue; - - /* Send SWI0 to dest vcpu to emulate IPI interrupt */ - kvm_queue_irq(dest, INT_SWI0); - kvm_vcpu_kick(dest); - } + /* Send SWI0 to dest vcpu to emulate IPI interrupt */ + kvm_queue_irq(dest, INT_SWI0); + kvm_vcpu_kick(dest); } - - return 0; } /* diff --git a/arch/loongarch/kvm/intc/eiointc.c b/arch/loongarch/kvm/intc/eiointc.c index f39929d7bf8a..a3a12af9ecbf 100644 --- a/arch/loongarch/kvm/intc/eiointc.c +++ b/arch/loongarch/kvm/intc/eiointc.c @@ -9,7 +9,8 @@ static void eiointc_set_sw_coreisr(struct loongarch_eiointc *s) { - int ipnum, cpu, irq_index, irq_mask, irq; + int ipnum, cpu, cpuid, irq; + struct kvm_vcpu *vcpu; for (irq = 0; irq < EIOINTC_IRQS; irq++) { ipnum = s->ipmap.reg_u8[irq / 32]; @@ -17,20 +18,23 @@ static void eiointc_set_sw_coreisr(struct loongarch_eiointc *s) ipnum = count_trailing_zeros(ipnum); ipnum = (ipnum >= 0 && ipnum < 4) ? ipnum : 0; } - irq_index = irq / 32; - irq_mask = BIT(irq & 0x1f); - cpu = s->coremap.reg_u8[irq]; - if (!!(s->coreisr.reg_u32[cpu][irq_index] & irq_mask)) - set_bit(irq, s->sw_coreisr[cpu][ipnum]); + cpuid = s->coremap.reg_u8[irq]; + vcpu = kvm_get_vcpu_by_cpuid(s->kvm, cpuid); + if (!vcpu) + continue; + + cpu = vcpu->vcpu_id; + if (test_bit(irq, (unsigned long *)s->coreisr.reg_u32[cpu])) + __set_bit(irq, s->sw_coreisr[cpu][ipnum]); else - clear_bit(irq, s->sw_coreisr[cpu][ipnum]); + __clear_bit(irq, s->sw_coreisr[cpu][ipnum]); } } static void eiointc_update_irq(struct loongarch_eiointc *s, int irq, int level) { - int ipnum, cpu, found, irq_index, irq_mask; + int ipnum, cpu, found; struct kvm_vcpu *vcpu; struct kvm_interrupt vcpu_irq; @@ -42,19 +46,16 @@ static void eiointc_update_irq(struct loongarch_eiointc *s, int irq, int level) cpu = s->sw_coremap[irq]; vcpu = kvm_get_vcpu(s->kvm, cpu); - irq_index = irq / 32; - irq_mask = BIT(irq & 0x1f); - if (level) { /* if not enable return false */ - if (((s->enable.reg_u32[irq_index]) & irq_mask) == 0) + if (!test_bit(irq, (unsigned long *)s->enable.reg_u32)) return; - s->coreisr.reg_u32[cpu][irq_index] |= irq_mask; + __set_bit(irq, (unsigned long *)s->coreisr.reg_u32[cpu]); found = find_first_bit(s->sw_coreisr[cpu][ipnum], EIOINTC_IRQS); - set_bit(irq, s->sw_coreisr[cpu][ipnum]); + __set_bit(irq, s->sw_coreisr[cpu][ipnum]); } else { - s->coreisr.reg_u32[cpu][irq_index] &= ~irq_mask; - clear_bit(irq, s->sw_coreisr[cpu][ipnum]); + __clear_bit(irq, (unsigned long *)s->coreisr.reg_u32[cpu]); + __clear_bit(irq, s->sw_coreisr[cpu][ipnum]); found = find_first_bit(s->sw_coreisr[cpu][ipnum], EIOINTC_IRQS); } @@ -66,20 +67,25 @@ static void eiointc_update_irq(struct loongarch_eiointc *s, int irq, int level) } static inline void eiointc_update_sw_coremap(struct loongarch_eiointc *s, - int irq, void *pvalue, u32 len, bool notify) + int irq, u64 val, u32 len, bool notify) { - int i, cpu; - u64 val = *(u64 *)pvalue; + int i, cpu, cpuid; + struct kvm_vcpu *vcpu; for (i = 0; i < len; i++) { - cpu = val & 0xff; + cpuid = val & 0xff; val = val >> 8; if (!(s->status & BIT(EIOINTC_ENABLE_CPU_ENCODE))) { - cpu = ffs(cpu) - 1; - cpu = (cpu >= 4) ? 0 : cpu; + cpuid = ffs(cpuid) - 1; + cpuid = (cpuid >= 4) ? 0 : cpuid; } + vcpu = kvm_get_vcpu_by_cpuid(s->kvm, cpuid); + if (!vcpu) + continue; + + cpu = vcpu->vcpu_id; if (s->sw_coremap[irq + i] == cpu) continue; @@ -99,159 +105,14 @@ void eiointc_set_irq(struct loongarch_eiointc *s, int irq, int level) unsigned long flags; unsigned long *isr = (unsigned long *)s->isr.reg_u8; - level ? set_bit(irq, isr) : clear_bit(irq, isr); spin_lock_irqsave(&s->lock, flags); + level ? __set_bit(irq, isr) : __clear_bit(irq, isr); eiointc_update_irq(s, irq, level); spin_unlock_irqrestore(&s->lock, flags); } -static inline void eiointc_enable_irq(struct kvm_vcpu *vcpu, - struct loongarch_eiointc *s, int index, u8 mask, int level) -{ - u8 val; - int irq; - - val = mask & s->isr.reg_u8[index]; - irq = ffs(val); - while (irq != 0) { - /* - * enable bit change from 0 to 1, - * need to update irq by pending bits - */ - eiointc_update_irq(s, irq - 1 + index * 8, level); - val &= ~BIT(irq - 1); - irq = ffs(val); - } -} - -static int loongarch_eiointc_readb(struct kvm_vcpu *vcpu, struct loongarch_eiointc *s, - gpa_t addr, int len, void *val) -{ - int index, ret = 0; - u8 data = 0; - gpa_t offset; - - offset = addr - EIOINTC_BASE; - switch (offset) { - case EIOINTC_NODETYPE_START ... EIOINTC_NODETYPE_END: - index = offset - EIOINTC_NODETYPE_START; - data = s->nodetype.reg_u8[index]; - break; - case EIOINTC_IPMAP_START ... EIOINTC_IPMAP_END: - index = offset - EIOINTC_IPMAP_START; - data = s->ipmap.reg_u8[index]; - break; - case EIOINTC_ENABLE_START ... EIOINTC_ENABLE_END: - index = offset - EIOINTC_ENABLE_START; - data = s->enable.reg_u8[index]; - break; - case EIOINTC_BOUNCE_START ... EIOINTC_BOUNCE_END: - index = offset - EIOINTC_BOUNCE_START; - data = s->bounce.reg_u8[index]; - break; - case EIOINTC_COREISR_START ... EIOINTC_COREISR_END: - index = offset - EIOINTC_COREISR_START; - data = s->coreisr.reg_u8[vcpu->vcpu_id][index]; - break; - case EIOINTC_COREMAP_START ... EIOINTC_COREMAP_END: - index = offset - EIOINTC_COREMAP_START; - data = s->coremap.reg_u8[index]; - break; - default: - ret = -EINVAL; - break; - } - *(u8 *)val = data; - - return ret; -} - -static int loongarch_eiointc_readw(struct kvm_vcpu *vcpu, struct loongarch_eiointc *s, - gpa_t addr, int len, void *val) -{ - int index, ret = 0; - u16 data = 0; - gpa_t offset; - - offset = addr - EIOINTC_BASE; - switch (offset) { - case EIOINTC_NODETYPE_START ... EIOINTC_NODETYPE_END: - index = (offset - EIOINTC_NODETYPE_START) >> 1; - data = s->nodetype.reg_u16[index]; - break; - case EIOINTC_IPMAP_START ... EIOINTC_IPMAP_END: - index = (offset - EIOINTC_IPMAP_START) >> 1; - data = s->ipmap.reg_u16[index]; - break; - case EIOINTC_ENABLE_START ... EIOINTC_ENABLE_END: - index = (offset - EIOINTC_ENABLE_START) >> 1; - data = s->enable.reg_u16[index]; - break; - case EIOINTC_BOUNCE_START ... EIOINTC_BOUNCE_END: - index = (offset - EIOINTC_BOUNCE_START) >> 1; - data = s->bounce.reg_u16[index]; - break; - case EIOINTC_COREISR_START ... EIOINTC_COREISR_END: - index = (offset - EIOINTC_COREISR_START) >> 1; - data = s->coreisr.reg_u16[vcpu->vcpu_id][index]; - break; - case EIOINTC_COREMAP_START ... EIOINTC_COREMAP_END: - index = (offset - EIOINTC_COREMAP_START) >> 1; - data = s->coremap.reg_u16[index]; - break; - default: - ret = -EINVAL; - break; - } - *(u16 *)val = data; - - return ret; -} - -static int loongarch_eiointc_readl(struct kvm_vcpu *vcpu, struct loongarch_eiointc *s, - gpa_t addr, int len, void *val) -{ - int index, ret = 0; - u32 data = 0; - gpa_t offset; - - offset = addr - EIOINTC_BASE; - switch (offset) { - case EIOINTC_NODETYPE_START ... EIOINTC_NODETYPE_END: - index = (offset - EIOINTC_NODETYPE_START) >> 2; - data = s->nodetype.reg_u32[index]; - break; - case EIOINTC_IPMAP_START ... EIOINTC_IPMAP_END: - index = (offset - EIOINTC_IPMAP_START) >> 2; - data = s->ipmap.reg_u32[index]; - break; - case EIOINTC_ENABLE_START ... EIOINTC_ENABLE_END: - index = (offset - EIOINTC_ENABLE_START) >> 2; - data = s->enable.reg_u32[index]; - break; - case EIOINTC_BOUNCE_START ... EIOINTC_BOUNCE_END: - index = (offset - EIOINTC_BOUNCE_START) >> 2; - data = s->bounce.reg_u32[index]; - break; - case EIOINTC_COREISR_START ... EIOINTC_COREISR_END: - index = (offset - EIOINTC_COREISR_START) >> 2; - data = s->coreisr.reg_u32[vcpu->vcpu_id][index]; - break; - case EIOINTC_COREMAP_START ... EIOINTC_COREMAP_END: - index = (offset - EIOINTC_COREMAP_START) >> 2; - data = s->coremap.reg_u32[index]; - break; - default: - ret = -EINVAL; - break; - } - *(u32 *)val = data; - - return ret; -} - -static int loongarch_eiointc_readq(struct kvm_vcpu *vcpu, struct loongarch_eiointc *s, - gpa_t addr, int len, void *val) +static int loongarch_eiointc_read(struct kvm_vcpu *vcpu, struct loongarch_eiointc *s, + gpa_t addr, unsigned long *val) { int index, ret = 0; u64 data = 0; @@ -287,7 +148,7 @@ static int loongarch_eiointc_readq(struct kvm_vcpu *vcpu, struct loongarch_eioin ret = -EINVAL; break; } - *(u64 *)val = data; + *val = data; return ret; } @@ -297,7 +158,7 @@ static int kvm_eiointc_read(struct kvm_vcpu *vcpu, gpa_t addr, int len, void *val) { int ret = -EINVAL; - unsigned long flags; + unsigned long flags, data, offset; struct loongarch_eiointc *eiointc = vcpu->kvm->arch.eiointc; if (!eiointc) { @@ -305,358 +166,120 @@ static int kvm_eiointc_read(struct kvm_vcpu *vcpu, return -EINVAL; } - vcpu->kvm->stat.eiointc_read_exits++; + if (addr & (len - 1)) { + kvm_err("%s: eiointc not aligned addr %llx len %d\n", __func__, addr, len); + return -EINVAL; + } + + offset = addr & 0x7; + addr -= offset; + vcpu->stat.eiointc_read_exits++; spin_lock_irqsave(&eiointc->lock, flags); + ret = loongarch_eiointc_read(vcpu, eiointc, addr, &data); + spin_unlock_irqrestore(&eiointc->lock, flags); + if (ret) + return ret; + + data = data >> (offset * 8); switch (len) { case 1: - ret = loongarch_eiointc_readb(vcpu, eiointc, addr, len, val); + *(long *)val = (s8)data; break; case 2: - ret = loongarch_eiointc_readw(vcpu, eiointc, addr, len, val); + *(long *)val = (s16)data; break; case 4: - ret = loongarch_eiointc_readl(vcpu, eiointc, addr, len, val); - break; - case 8: - ret = loongarch_eiointc_readq(vcpu, eiointc, addr, len, val); + *(long *)val = (s32)data; break; default: - WARN_ONCE(1, "%s: Abnormal address access: addr 0x%llx, size %d\n", - __func__, addr, len); - } - spin_unlock_irqrestore(&eiointc->lock, flags); - - return ret; -} - -static int loongarch_eiointc_writeb(struct kvm_vcpu *vcpu, - struct loongarch_eiointc *s, - gpa_t addr, int len, const void *val) -{ - int index, irq, bits, ret = 0; - u8 cpu; - u8 data, old_data; - u8 coreisr, old_coreisr; - gpa_t offset; - - data = *(u8 *)val; - offset = addr - EIOINTC_BASE; - - switch (offset) { - case EIOINTC_NODETYPE_START ... EIOINTC_NODETYPE_END: - index = (offset - EIOINTC_NODETYPE_START); - s->nodetype.reg_u8[index] = data; - break; - case EIOINTC_IPMAP_START ... EIOINTC_IPMAP_END: - /* - * ipmap cannot be set at runtime, can be set only at the beginning - * of irqchip driver, need not update upper irq level - */ - index = (offset - EIOINTC_IPMAP_START); - s->ipmap.reg_u8[index] = data; - break; - case EIOINTC_ENABLE_START ... EIOINTC_ENABLE_END: - index = (offset - EIOINTC_ENABLE_START); - old_data = s->enable.reg_u8[index]; - s->enable.reg_u8[index] = data; - /* - * 1: enable irq. - * update irq when isr is set. - */ - data = s->enable.reg_u8[index] & ~old_data & s->isr.reg_u8[index]; - eiointc_enable_irq(vcpu, s, index, data, 1); - /* - * 0: disable irq. - * update irq when isr is set. - */ - data = ~s->enable.reg_u8[index] & old_data & s->isr.reg_u8[index]; - eiointc_enable_irq(vcpu, s, index, data, 0); - break; - case EIOINTC_BOUNCE_START ... EIOINTC_BOUNCE_END: - /* do not emulate hw bounced irq routing */ - index = offset - EIOINTC_BOUNCE_START; - s->bounce.reg_u8[index] = data; - break; - case EIOINTC_COREISR_START ... EIOINTC_COREISR_END: - index = (offset - EIOINTC_COREISR_START); - /* use attrs to get current cpu index */ - cpu = vcpu->vcpu_id; - coreisr = data; - old_coreisr = s->coreisr.reg_u8[cpu][index]; - /* write 1 to clear interrupt */ - s->coreisr.reg_u8[cpu][index] = old_coreisr & ~coreisr; - coreisr &= old_coreisr; - bits = sizeof(data) * 8; - irq = find_first_bit((void *)&coreisr, bits); - while (irq < bits) { - eiointc_update_irq(s, irq + index * bits, 0); - bitmap_clear((void *)&coreisr, irq, 1); - irq = find_first_bit((void *)&coreisr, bits); - } - break; - case EIOINTC_COREMAP_START ... EIOINTC_COREMAP_END: - irq = offset - EIOINTC_COREMAP_START; - index = irq; - s->coremap.reg_u8[index] = data; - eiointc_update_sw_coremap(s, irq, (void *)&data, sizeof(data), true); - break; - default: - ret = -EINVAL; + *(long *)val = (long)data; break; } - return ret; -} - -static int loongarch_eiointc_writew(struct kvm_vcpu *vcpu, - struct loongarch_eiointc *s, - gpa_t addr, int len, const void *val) -{ - int i, index, irq, bits, ret = 0; - u8 cpu; - u16 data, old_data; - u16 coreisr, old_coreisr; - gpa_t offset; - - data = *(u16 *)val; - offset = addr - EIOINTC_BASE; - - switch (offset) { - case EIOINTC_NODETYPE_START ... EIOINTC_NODETYPE_END: - index = (offset - EIOINTC_NODETYPE_START) >> 1; - s->nodetype.reg_u16[index] = data; - break; - case EIOINTC_IPMAP_START ... EIOINTC_IPMAP_END: - /* - * ipmap cannot be set at runtime, can be set only at the beginning - * of irqchip driver, need not update upper irq level - */ - index = (offset - EIOINTC_IPMAP_START) >> 1; - s->ipmap.reg_u16[index] = data; - break; - case EIOINTC_ENABLE_START ... EIOINTC_ENABLE_END: - index = (offset - EIOINTC_ENABLE_START) >> 1; - old_data = s->enable.reg_u32[index]; - s->enable.reg_u16[index] = data; - /* - * 1: enable irq. - * update irq when isr is set. - */ - data = s->enable.reg_u16[index] & ~old_data & s->isr.reg_u16[index]; - index = index << 1; - for (i = 0; i < sizeof(data); i++) { - u8 mask = (data >> (i * 8)) & 0xff; - eiointc_enable_irq(vcpu, s, index + i, mask, 1); - } - /* - * 0: disable irq. - * update irq when isr is set. - */ - data = ~s->enable.reg_u16[index] & old_data & s->isr.reg_u16[index]; - for (i = 0; i < sizeof(data); i++) { - u8 mask = (data >> (i * 8)) & 0xff; - eiointc_enable_irq(vcpu, s, index, mask, 0); - } - break; - case EIOINTC_BOUNCE_START ... EIOINTC_BOUNCE_END: - /* do not emulate hw bounced irq routing */ - index = (offset - EIOINTC_BOUNCE_START) >> 1; - s->bounce.reg_u16[index] = data; - break; - case EIOINTC_COREISR_START ... EIOINTC_COREISR_END: - index = (offset - EIOINTC_COREISR_START) >> 1; - /* use attrs to get current cpu index */ - cpu = vcpu->vcpu_id; - coreisr = data; - old_coreisr = s->coreisr.reg_u16[cpu][index]; - /* write 1 to clear interrupt */ - s->coreisr.reg_u16[cpu][index] = old_coreisr & ~coreisr; - coreisr &= old_coreisr; - bits = sizeof(data) * 8; - irq = find_first_bit((void *)&coreisr, bits); - while (irq < bits) { - eiointc_update_irq(s, irq + index * bits, 0); - bitmap_clear((void *)&coreisr, irq, 1); - irq = find_first_bit((void *)&coreisr, bits); - } - break; - case EIOINTC_COREMAP_START ... EIOINTC_COREMAP_END: - irq = offset - EIOINTC_COREMAP_START; - index = irq >> 1; - s->coremap.reg_u16[index] = data; - eiointc_update_sw_coremap(s, irq, (void *)&data, sizeof(data), true); - break; - default: - ret = -EINVAL; - break; - } - - return ret; + return 0; } -static int loongarch_eiointc_writel(struct kvm_vcpu *vcpu, +static int loongarch_eiointc_write(struct kvm_vcpu *vcpu, struct loongarch_eiointc *s, - gpa_t addr, int len, const void *val) + gpa_t addr, u64 value, u64 field_mask) { - int i, index, irq, bits, ret = 0; + int index, irq, ret = 0; u8 cpu; - u32 data, old_data; - u32 coreisr, old_coreisr; + u64 data, old, mask; gpa_t offset; - data = *(u32 *)val; - offset = addr - EIOINTC_BASE; + offset = addr & 7; + mask = field_mask << (offset * 8); + data = (value & field_mask) << (offset * 8); - switch (offset) { - case EIOINTC_NODETYPE_START ... EIOINTC_NODETYPE_END: - index = (offset - EIOINTC_NODETYPE_START) >> 2; - s->nodetype.reg_u32[index] = data; - break; - case EIOINTC_IPMAP_START ... EIOINTC_IPMAP_END: - /* - * ipmap cannot be set at runtime, can be set only at the beginning - * of irqchip driver, need not update upper irq level - */ - index = (offset - EIOINTC_IPMAP_START) >> 2; - s->ipmap.reg_u32[index] = data; - break; - case EIOINTC_ENABLE_START ... EIOINTC_ENABLE_END: - index = (offset - EIOINTC_ENABLE_START) >> 2; - old_data = s->enable.reg_u32[index]; - s->enable.reg_u32[index] = data; - /* - * 1: enable irq. - * update irq when isr is set. - */ - data = s->enable.reg_u32[index] & ~old_data & s->isr.reg_u32[index]; - index = index << 2; - for (i = 0; i < sizeof(data); i++) { - u8 mask = (data >> (i * 8)) & 0xff; - eiointc_enable_irq(vcpu, s, index + i, mask, 1); - } - /* - * 0: disable irq. - * update irq when isr is set. - */ - data = ~s->enable.reg_u32[index] & old_data & s->isr.reg_u32[index]; - for (i = 0; i < sizeof(data); i++) { - u8 mask = (data >> (i * 8)) & 0xff; - eiointc_enable_irq(vcpu, s, index, mask, 0); - } - break; - case EIOINTC_BOUNCE_START ... EIOINTC_BOUNCE_END: - /* do not emulate hw bounced irq routing */ - index = (offset - EIOINTC_BOUNCE_START) >> 2; - s->bounce.reg_u32[index] = data; - break; - case EIOINTC_COREISR_START ... EIOINTC_COREISR_END: - index = (offset - EIOINTC_COREISR_START) >> 2; - /* use attrs to get current cpu index */ - cpu = vcpu->vcpu_id; - coreisr = data; - old_coreisr = s->coreisr.reg_u32[cpu][index]; - /* write 1 to clear interrupt */ - s->coreisr.reg_u32[cpu][index] = old_coreisr & ~coreisr; - coreisr &= old_coreisr; - bits = sizeof(data) * 8; - irq = find_first_bit((void *)&coreisr, bits); - while (irq < bits) { - eiointc_update_irq(s, irq + index * bits, 0); - bitmap_clear((void *)&coreisr, irq, 1); - irq = find_first_bit((void *)&coreisr, bits); - } - break; - case EIOINTC_COREMAP_START ... EIOINTC_COREMAP_END: - irq = offset - EIOINTC_COREMAP_START; - index = irq >> 2; - s->coremap.reg_u32[index] = data; - eiointc_update_sw_coremap(s, irq, (void *)&data, sizeof(data), true); - break; - default: - ret = -EINVAL; - break; - } - - return ret; -} - -static int loongarch_eiointc_writeq(struct kvm_vcpu *vcpu, - struct loongarch_eiointc *s, - gpa_t addr, int len, const void *val) -{ - int i, index, irq, bits, ret = 0; - u8 cpu; - u64 data, old_data; - u64 coreisr, old_coreisr; - gpa_t offset; - - data = *(u64 *)val; + addr -= offset; offset = addr - EIOINTC_BASE; switch (offset) { case EIOINTC_NODETYPE_START ... EIOINTC_NODETYPE_END: index = (offset - EIOINTC_NODETYPE_START) >> 3; - s->nodetype.reg_u64[index] = data; + old = s->nodetype.reg_u64[index]; + s->nodetype.reg_u64[index] = (old & ~mask) | data; break; case EIOINTC_IPMAP_START ... EIOINTC_IPMAP_END: /* * ipmap cannot be set at runtime, can be set only at the beginning * of irqchip driver, need not update upper irq level */ - index = (offset - EIOINTC_IPMAP_START) >> 3; - s->ipmap.reg_u64 = data; + old = s->ipmap.reg_u64; + s->ipmap.reg_u64 = (old & ~mask) | data; break; case EIOINTC_ENABLE_START ... EIOINTC_ENABLE_END: index = (offset - EIOINTC_ENABLE_START) >> 3; - old_data = s->enable.reg_u64[index]; - s->enable.reg_u64[index] = data; + old = s->enable.reg_u64[index]; + s->enable.reg_u64[index] = (old & ~mask) | data; /* * 1: enable irq. * update irq when isr is set. */ - data = s->enable.reg_u64[index] & ~old_data & s->isr.reg_u64[index]; - index = index << 3; - for (i = 0; i < sizeof(data); i++) { - u8 mask = (data >> (i * 8)) & 0xff; - eiointc_enable_irq(vcpu, s, index + i, mask, 1); + data = s->enable.reg_u64[index] & ~old & s->isr.reg_u64[index]; + while (data) { + irq = __ffs(data); + eiointc_update_irq(s, irq + index * 64, 1); + data &= ~BIT_ULL(irq); } /* * 0: disable irq. * update irq when isr is set. */ - data = ~s->enable.reg_u64[index] & old_data & s->isr.reg_u64[index]; - for (i = 0; i < sizeof(data); i++) { - u8 mask = (data >> (i * 8)) & 0xff; - eiointc_enable_irq(vcpu, s, index, mask, 0); + data = ~s->enable.reg_u64[index] & old & s->isr.reg_u64[index]; + while (data) { + irq = __ffs(data); + eiointc_update_irq(s, irq + index * 64, 0); + data &= ~BIT_ULL(irq); } break; case EIOINTC_BOUNCE_START ... EIOINTC_BOUNCE_END: /* do not emulate hw bounced irq routing */ index = (offset - EIOINTC_BOUNCE_START) >> 3; - s->bounce.reg_u64[index] = data; + old = s->bounce.reg_u64[index]; + s->bounce.reg_u64[index] = (old & ~mask) | data; break; case EIOINTC_COREISR_START ... EIOINTC_COREISR_END: index = (offset - EIOINTC_COREISR_START) >> 3; /* use attrs to get current cpu index */ cpu = vcpu->vcpu_id; - coreisr = data; - old_coreisr = s->coreisr.reg_u64[cpu][index]; + old = s->coreisr.reg_u64[cpu][index]; /* write 1 to clear interrupt */ - s->coreisr.reg_u64[cpu][index] = old_coreisr & ~coreisr; - coreisr &= old_coreisr; - bits = sizeof(data) * 8; - irq = find_first_bit((void *)&coreisr, bits); - while (irq < bits) { - eiointc_update_irq(s, irq + index * bits, 0); - bitmap_clear((void *)&coreisr, irq, 1); - irq = find_first_bit((void *)&coreisr, bits); + s->coreisr.reg_u64[cpu][index] = old & ~data; + data &= old; + while (data) { + irq = __ffs(data); + eiointc_update_irq(s, irq + index * 64, 0); + data &= ~BIT_ULL(irq); } break; case EIOINTC_COREMAP_START ... EIOINTC_COREMAP_END: - irq = offset - EIOINTC_COREMAP_START; - index = irq >> 3; - s->coremap.reg_u64[index] = data; - eiointc_update_sw_coremap(s, irq, (void *)&data, sizeof(data), true); + index = (offset - EIOINTC_COREMAP_START) >> 3; + old = s->coremap.reg_u64[index]; + s->coremap.reg_u64[index] = (old & ~mask) | data; + data = s->coremap.reg_u64[index]; + eiointc_update_sw_coremap(s, index * 8, data, sizeof(data), true); break; default: ret = -EINVAL; @@ -671,7 +294,7 @@ static int kvm_eiointc_write(struct kvm_vcpu *vcpu, gpa_t addr, int len, const void *val) { int ret = -EINVAL; - unsigned long flags; + unsigned long flags, value; struct loongarch_eiointc *eiointc = vcpu->kvm->arch.eiointc; if (!eiointc) { @@ -679,24 +302,30 @@ static int kvm_eiointc_write(struct kvm_vcpu *vcpu, return -EINVAL; } - vcpu->kvm->stat.eiointc_write_exits++; + if (addr & (len - 1)) { + kvm_err("%s: eiointc not aligned addr %llx len %d\n", __func__, addr, len); + return -EINVAL; + } + + vcpu->stat.eiointc_write_exits++; spin_lock_irqsave(&eiointc->lock, flags); switch (len) { case 1: - ret = loongarch_eiointc_writeb(vcpu, eiointc, addr, len, val); + value = *(unsigned char *)val; + ret = loongarch_eiointc_write(vcpu, eiointc, addr, value, 0xFF); break; case 2: - ret = loongarch_eiointc_writew(vcpu, eiointc, addr, len, val); + value = *(unsigned short *)val; + ret = loongarch_eiointc_write(vcpu, eiointc, addr, value, USHRT_MAX); break; case 4: - ret = loongarch_eiointc_writel(vcpu, eiointc, addr, len, val); - break; - case 8: - ret = loongarch_eiointc_writeq(vcpu, eiointc, addr, len, val); + value = *(unsigned int *)val; + ret = loongarch_eiointc_write(vcpu, eiointc, addr, value, UINT_MAX); break; default: - WARN_ONCE(1, "%s: Abnormal address access: addr 0x%llx, size %d\n", - __func__, addr, len); + value = *(unsigned long *)val; + ret = loongarch_eiointc_write(vcpu, eiointc, addr, value, ULONG_MAX); + break; } spin_unlock_irqrestore(&eiointc->lock, flags); @@ -787,7 +416,7 @@ static int kvm_eiointc_ctrl_access(struct kvm_device *dev, int ret = 0; unsigned long flags; unsigned long type = (unsigned long)attr->attr; - u32 i, start_irq; + u32 i, start_irq, val; void __user *data; struct loongarch_eiointc *s = dev->kvm->arch.eiointc; @@ -795,8 +424,14 @@ static int kvm_eiointc_ctrl_access(struct kvm_device *dev, spin_lock_irqsave(&s->lock, flags); switch (type) { case KVM_DEV_LOONGARCH_EXTIOI_CTRL_INIT_NUM_CPU: - if (copy_from_user(&s->num_cpu, data, 4)) + if (copy_from_user(&val, data, 4)) ret = -EFAULT; + else { + if (val >= EIOINTC_ROUTE_MAX_VCPUS) + ret = -EINVAL; + else + s->num_cpu = val; + } break; case KVM_DEV_LOONGARCH_EXTIOI_CTRL_INIT_FEATURE: if (copy_from_user(&s->features, data, 4)) @@ -809,7 +444,7 @@ static int kvm_eiointc_ctrl_access(struct kvm_device *dev, for (i = 0; i < (EIOINTC_IRQS / 4); i++) { start_irq = i * 4; eiointc_update_sw_coremap(s, start_irq, - (void *)&s->coremap.reg_u32[i], sizeof(u32), false); + s->coremap.reg_u32[i], sizeof(u32), false); } break; default: @@ -824,7 +459,7 @@ static int kvm_eiointc_regs_access(struct kvm_device *dev, struct kvm_device_attr *attr, bool is_write) { - int addr, cpuid, offset, ret = 0; + int addr, cpu, offset, ret = 0; unsigned long flags; void *p = NULL; void __user *data; @@ -832,7 +467,7 @@ static int kvm_eiointc_regs_access(struct kvm_device *dev, s = dev->kvm->arch.eiointc; addr = attr->attr; - cpuid = addr >> 16; + cpu = addr >> 16; addr &= 0xffff; data = (void __user *)attr->addr; switch (addr) { @@ -857,8 +492,11 @@ static int kvm_eiointc_regs_access(struct kvm_device *dev, p = &s->isr.reg_u32[offset]; break; case EIOINTC_COREISR_START ... EIOINTC_COREISR_END: + if (cpu >= s->num_cpu) + return -EINVAL; + offset = (addr - EIOINTC_COREISR_START) / 4; - p = &s->coreisr.reg_u32[cpuid][offset]; + p = &s->coreisr.reg_u32[cpu][offset]; break; case EIOINTC_COREMAP_START ... EIOINTC_COREMAP_END: offset = (addr - EIOINTC_COREMAP_START) / 4; @@ -899,9 +537,15 @@ static int kvm_eiointc_sw_status_access(struct kvm_device *dev, data = (void __user *)attr->addr; switch (addr) { case KVM_DEV_LOONGARCH_EXTIOI_SW_STATUS_NUM_CPU: + if (is_write) + return ret; + p = &s->num_cpu; break; case KVM_DEV_LOONGARCH_EXTIOI_SW_STATUS_FEATURE: + if (is_write) + return ret; + p = &s->features; break; case KVM_DEV_LOONGARCH_EXTIOI_SW_STATUS_STATE: @@ -956,7 +600,7 @@ static int kvm_eiointc_create(struct kvm_device *dev, u32 type) { int ret; struct loongarch_eiointc *s; - struct kvm_io_device *device, *device1; + struct kvm_io_device *device; struct kvm *kvm = dev->kvm; /* eiointc has been created */ @@ -984,10 +628,10 @@ static int kvm_eiointc_create(struct kvm_device *dev, u32 type) return ret; } - device1 = &s->device_vext; - kvm_iodevice_init(device1, &kvm_eiointc_virt_ops); + device = &s->device_vext; + kvm_iodevice_init(device, &kvm_eiointc_virt_ops); ret = kvm_io_bus_register_dev(kvm, KVM_IOCSR_BUS, - EIOINTC_VIRT_BASE, EIOINTC_VIRT_SIZE, device1); + EIOINTC_VIRT_BASE, EIOINTC_VIRT_SIZE, device); if (ret < 0) { kvm_io_bus_unregister_dev(kvm, KVM_IOCSR_BUS, &s->device); kfree(s); diff --git a/arch/loongarch/kvm/intc/ipi.c b/arch/loongarch/kvm/intc/ipi.c index fe734dc062ed..e658d5b37c04 100644 --- a/arch/loongarch/kvm/intc/ipi.c +++ b/arch/loongarch/kvm/intc/ipi.c @@ -268,36 +268,16 @@ static int kvm_ipi_read(struct kvm_vcpu *vcpu, struct kvm_io_device *dev, gpa_t addr, int len, void *val) { - int ret; - struct loongarch_ipi *ipi; - - ipi = vcpu->kvm->arch.ipi; - if (!ipi) { - kvm_err("%s: ipi irqchip not valid!\n", __func__); - return -EINVAL; - } - ipi->kvm->stat.ipi_read_exits++; - ret = loongarch_ipi_readl(vcpu, addr, len, val); - - return ret; + vcpu->stat.ipi_read_exits++; + return loongarch_ipi_readl(vcpu, addr, len, val); } static int kvm_ipi_write(struct kvm_vcpu *vcpu, struct kvm_io_device *dev, gpa_t addr, int len, const void *val) { - int ret; - struct loongarch_ipi *ipi; - - ipi = vcpu->kvm->arch.ipi; - if (!ipi) { - kvm_err("%s: ipi irqchip not valid!\n", __func__); - return -EINVAL; - } - ipi->kvm->stat.ipi_write_exits++; - ret = loongarch_ipi_writel(vcpu, addr, len, val); - - return ret; + vcpu->stat.ipi_write_exits++; + return loongarch_ipi_writel(vcpu, addr, len, val); } static const struct kvm_io_device_ops kvm_ipi_ops = { diff --git a/arch/loongarch/kvm/intc/pch_pic.c b/arch/loongarch/kvm/intc/pch_pic.c index 08fce845f668..6f00ffe05c54 100644 --- a/arch/loongarch/kvm/intc/pch_pic.c +++ b/arch/loongarch/kvm/intc/pch_pic.c @@ -196,7 +196,7 @@ static int kvm_pch_pic_read(struct kvm_vcpu *vcpu, } /* statistics of pch pic reading */ - vcpu->kvm->stat.pch_pic_read_exits++; + vcpu->stat.pch_pic_read_exits++; ret = loongarch_pch_pic_read(s, addr, len, val); return ret; @@ -303,7 +303,7 @@ static int kvm_pch_pic_write(struct kvm_vcpu *vcpu, } /* statistics of pch pic writing */ - vcpu->kvm->stat.pch_pic_write_exits++; + vcpu->stat.pch_pic_write_exits++; ret = loongarch_pch_pic_write(s, addr, len, val); return ret; diff --git a/arch/loongarch/kvm/interrupt.c b/arch/loongarch/kvm/interrupt.c index 4c3f22de4b40..8462083f0301 100644 --- a/arch/loongarch/kvm/interrupt.c +++ b/arch/loongarch/kvm/interrupt.c @@ -83,28 +83,11 @@ void kvm_deliver_intr(struct kvm_vcpu *vcpu) unsigned long *pending = &vcpu->arch.irq_pending; unsigned long *pending_clr = &vcpu->arch.irq_clear; - if (!(*pending) && !(*pending_clr)) - return; - - if (*pending_clr) { - priority = __ffs(*pending_clr); - while (priority <= INT_IPI) { - kvm_irq_clear(vcpu, priority); - priority = find_next_bit(pending_clr, - BITS_PER_BYTE * sizeof(*pending_clr), - priority + 1); - } - } + for_each_set_bit(priority, pending_clr, INT_IPI + 1) + kvm_irq_clear(vcpu, priority); - if (*pending) { - priority = __ffs(*pending); - while (priority <= INT_IPI) { - kvm_irq_deliver(vcpu, priority); - priority = find_next_bit(pending, - BITS_PER_BYTE * sizeof(*pending), - priority + 1); - } - } + for_each_set_bit(priority, pending, INT_IPI + 1) + kvm_irq_deliver(vcpu, priority); } int kvm_pending_timer(struct kvm_vcpu *vcpu) diff --git a/arch/loongarch/kvm/trace.h b/arch/loongarch/kvm/trace.h index 1783397b1bc8..145514dab6d5 100644 --- a/arch/loongarch/kvm/trace.h +++ b/arch/loongarch/kvm/trace.h @@ -46,11 +46,15 @@ DEFINE_EVENT(kvm_transition, kvm_out, /* Further exit reasons */ #define KVM_TRACE_EXIT_IDLE 64 #define KVM_TRACE_EXIT_CACHE 65 +#define KVM_TRACE_EXIT_CPUCFG 66 +#define KVM_TRACE_EXIT_CSR 67 /* Tracepoints for VM exits */ #define kvm_trace_symbol_exit_types \ { KVM_TRACE_EXIT_IDLE, "IDLE" }, \ - { KVM_TRACE_EXIT_CACHE, "CACHE" } + { KVM_TRACE_EXIT_CACHE, "CACHE" }, \ + { KVM_TRACE_EXIT_CPUCFG, "CPUCFG" }, \ + { KVM_TRACE_EXIT_CSR, "CSR" } DECLARE_EVENT_CLASS(kvm_exit, TP_PROTO(struct kvm_vcpu *vcpu, unsigned int reason), @@ -82,6 +86,14 @@ DEFINE_EVENT(kvm_exit, kvm_exit_cache, TP_PROTO(struct kvm_vcpu *vcpu, unsigned int reason), TP_ARGS(vcpu, reason)); +DEFINE_EVENT(kvm_exit, kvm_exit_cpucfg, + TP_PROTO(struct kvm_vcpu *vcpu, unsigned int reason), + TP_ARGS(vcpu, reason)); + +DEFINE_EVENT(kvm_exit, kvm_exit_csr, + TP_PROTO(struct kvm_vcpu *vcpu, unsigned int reason), + TP_ARGS(vcpu, reason)); + DEFINE_EVENT(kvm_exit, kvm_exit, TP_PROTO(struct kvm_vcpu *vcpu, unsigned int reason), TP_ARGS(vcpu, reason)); diff --git a/arch/loongarch/kvm/vcpu.c b/arch/loongarch/kvm/vcpu.c index 5af32ec62cb1..d1b8c50941ca 100644 --- a/arch/loongarch/kvm/vcpu.c +++ b/arch/loongarch/kvm/vcpu.c @@ -20,7 +20,13 @@ const struct _kvm_stats_desc kvm_vcpu_stats_desc[] = { STATS_DESC_COUNTER(VCPU, idle_exits), STATS_DESC_COUNTER(VCPU, cpucfg_exits), STATS_DESC_COUNTER(VCPU, signal_exits), - STATS_DESC_COUNTER(VCPU, hypercall_exits) + STATS_DESC_COUNTER(VCPU, hypercall_exits), + STATS_DESC_COUNTER(VCPU, ipi_read_exits), + STATS_DESC_COUNTER(VCPU, ipi_write_exits), + STATS_DESC_COUNTER(VCPU, eiointc_read_exits), + STATS_DESC_COUNTER(VCPU, eiointc_write_exits), + STATS_DESC_COUNTER(VCPU, pch_pic_read_exits), + STATS_DESC_COUNTER(VCPU, pch_pic_write_exits) }; const struct kvm_stats_header kvm_vcpu_stats_header = { diff --git a/arch/loongarch/lib/Makefile b/arch/loongarch/lib/Makefile index fae77809048b..ccea3bbd4353 100644 --- a/arch/loongarch/lib/Makefile +++ b/arch/loongarch/lib/Makefile @@ -11,5 +11,3 @@ 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 - -obj-$(CONFIG_CRC32_ARCH) += crc32-loongarch.o diff --git a/arch/loongarch/lib/crc32-loongarch.c b/arch/loongarch/lib/crc32-loongarch.c deleted file mode 100644 index b37cd8537b45..000000000000 --- a/arch/loongarch/lib/crc32-loongarch.c +++ /dev/null @@ -1,135 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0 -/* - * CRC32 and CRC32C using LoongArch crc* instructions - * - * Module based on mips/crypto/crc32-mips.c - * - * Copyright (C) 2014 Linaro Ltd <yazen.ghannam@linaro.org> - * Copyright (C) 2018 MIPS Tech, LLC - * Copyright (C) 2020-2023 Loongson Technology Corporation Limited - */ - -#include <asm/cpu-features.h> -#include <linux/crc32.h> -#include <linux/module.h> -#include <linux/unaligned.h> - -#define _CRC32(crc, value, size, type) \ -do { \ - __asm__ __volatile__( \ - #type ".w." #size ".w" " %0, %1, %0\n\t"\ - : "+r" (crc) \ - : "r" (value) \ - : "memory"); \ -} while (0) - -#define CRC32(crc, value, size) _CRC32(crc, value, size, crc) -#define CRC32C(crc, value, size) _CRC32(crc, value, size, crcc) - -static __ro_after_init DEFINE_STATIC_KEY_FALSE(have_crc32); - -u32 crc32_le_arch(u32 crc, const u8 *p, size_t len) -{ - if (!static_branch_likely(&have_crc32)) - return crc32_le_base(crc, p, len); - - while (len >= sizeof(u64)) { - u64 value = get_unaligned_le64(p); - - CRC32(crc, value, d); - p += sizeof(u64); - len -= sizeof(u64); - } - - if (len & sizeof(u32)) { - u32 value = get_unaligned_le32(p); - - CRC32(crc, value, w); - p += sizeof(u32); - } - - if (len & sizeof(u16)) { - u16 value = get_unaligned_le16(p); - - CRC32(crc, value, h); - p += sizeof(u16); - } - - if (len & sizeof(u8)) { - u8 value = *p++; - - CRC32(crc, value, b); - } - - return crc; -} -EXPORT_SYMBOL(crc32_le_arch); - -u32 crc32c_arch(u32 crc, const u8 *p, size_t len) -{ - if (!static_branch_likely(&have_crc32)) - return crc32c_base(crc, p, len); - - while (len >= sizeof(u64)) { - u64 value = get_unaligned_le64(p); - - CRC32C(crc, value, d); - p += sizeof(u64); - len -= sizeof(u64); - } - - if (len & sizeof(u32)) { - u32 value = get_unaligned_le32(p); - - CRC32C(crc, value, w); - p += sizeof(u32); - } - - if (len & sizeof(u16)) { - u16 value = get_unaligned_le16(p); - - CRC32C(crc, value, h); - p += sizeof(u16); - } - - if (len & sizeof(u8)) { - u8 value = *p++; - - CRC32C(crc, value, b); - } - - return crc; -} -EXPORT_SYMBOL(crc32c_arch); - -u32 crc32_be_arch(u32 crc, const u8 *p, size_t len) -{ - return crc32_be_base(crc, p, len); -} -EXPORT_SYMBOL(crc32_be_arch); - -static int __init crc32_loongarch_init(void) -{ - if (cpu_has_crc32) - static_branch_enable(&have_crc32); - return 0; -} -subsys_initcall(crc32_loongarch_init); - -static void __exit crc32_loongarch_exit(void) -{ -} -module_exit(crc32_loongarch_exit); - -u32 crc32_optimizations(void) -{ - if (static_key_enabled(&have_crc32)) - return CRC32_LE_OPTIMIZATION | CRC32C_OPTIMIZATION; - return 0; -} -EXPORT_SYMBOL(crc32_optimizations); - -MODULE_AUTHOR("Min Zhou <zhoumin@loongson.cn>"); -MODULE_AUTHOR("Huacai Chen <chenhuacai@loongson.cn>"); -MODULE_DESCRIPTION("CRC32 and CRC32C using LoongArch crc* instructions"); -MODULE_LICENSE("GPL v2"); diff --git a/arch/loongarch/lib/csum.c b/arch/loongarch/lib/csum.c index df309ae4045d..bcc9d01d8c41 100644 --- a/arch/loongarch/lib/csum.c +++ b/arch/loongarch/lib/csum.c @@ -2,6 +2,7 @@ // Copyright (C) 2019-2020 Arm Ltd. #include <linux/compiler.h> +#include <linux/export.h> #include <linux/kasan-checks.h> #include <linux/kernel.h> diff --git a/arch/loongarch/mm/ioremap.c b/arch/loongarch/mm/ioremap.c index 70ca73019811..df949a3d0f34 100644 --- a/arch/loongarch/mm/ioremap.c +++ b/arch/loongarch/mm/ioremap.c @@ -16,12 +16,12 @@ void __init early_iounmap(void __iomem *addr, unsigned long size) } -void *early_memremap_ro(resource_size_t phys_addr, unsigned long size) +void * __init early_memremap_ro(resource_size_t phys_addr, unsigned long size) { return early_memremap(phys_addr, size); } -void *early_memremap_prot(resource_size_t phys_addr, unsigned long size, +void * __init early_memremap_prot(resource_size_t phys_addr, unsigned long size, unsigned long prot_val) { return early_memremap(phys_addr, size); diff --git a/arch/loongarch/pci/pci.c b/arch/loongarch/pci/pci.c index 2726639150bc..5bc9627a6cf9 100644 --- a/arch/loongarch/pci/pci.c +++ b/arch/loongarch/pci/pci.c @@ -3,7 +3,6 @@ * Copyright (C) 2020-2022 Loongson Technology Corporation Limited */ #include <linux/kernel.h> -#include <linux/export.h> #include <linux/init.h> #include <linux/acpi.h> #include <linux/types.h> |