diff options
Diffstat (limited to 'arch/arm64/include/asm')
31 files changed, 80 insertions, 167 deletions
diff --git a/arch/arm64/include/asm/assembler.h b/arch/arm64/include/asm/assembler.h index c066fc4976cd..b8cf7c85ffa2 100644 --- a/arch/arm64/include/asm/assembler.h +++ b/arch/arm64/include/asm/assembler.h @@ -124,17 +124,6 @@ alternative_endif .endm /* - * Sanitise a 64-bit bounded index wrt speculation, returning zero if out - * of bounds. - */ - .macro mask_nospec64, idx, limit, tmp - sub \tmp, \idx, \limit - bic \tmp, \tmp, \idx - and \idx, \idx, \tmp, asr #63 - csdb - .endm - -/* * NOP sequence */ .macro nops, num diff --git a/arch/arm64/include/asm/atomic.h b/arch/arm64/include/asm/atomic.h index 657b0457d83c..a5ca23950cfd 100644 --- a/arch/arm64/include/asm/atomic.h +++ b/arch/arm64/include/asm/atomic.h @@ -15,8 +15,6 @@ #include <asm/barrier.h> #include <asm/lse.h> -#ifdef __KERNEL__ - #define __ARM64_IN_ATOMIC_IMPL #if defined(CONFIG_ARM64_LSE_ATOMICS) && defined(CONFIG_AS_LSE) @@ -157,5 +155,4 @@ #include <asm-generic/atomic-instrumented.h> -#endif -#endif +#endif /* __ASM_ATOMIC_H */ diff --git a/arch/arm64/include/asm/cache.h b/arch/arm64/include/asm/cache.h index 64eeaa41e7ca..43da6dd29592 100644 --- a/arch/arm64/include/asm/cache.h +++ b/arch/arm64/include/asm/cache.h @@ -78,7 +78,7 @@ static inline u32 cache_type_cwg(void) return (read_cpuid_cachetype() >> CTR_CWG_SHIFT) & CTR_CWG_MASK; } -#define __read_mostly __attribute__((__section__(".data..read_mostly"))) +#define __read_mostly __section(.data..read_mostly) static inline int cache_line_size_of_cpu(void) { diff --git a/arch/arm64/include/asm/compat.h b/arch/arm64/include/asm/compat.h index fb8ad4616b3b..b0d53a265f1d 100644 --- a/arch/arm64/include/asm/compat.h +++ b/arch/arm64/include/asm/compat.h @@ -4,7 +4,6 @@ */ #ifndef __ASM_COMPAT_H #define __ASM_COMPAT_H -#ifdef __KERNEL__ #ifdef CONFIG_COMPAT /* @@ -215,5 +214,4 @@ static inline int is_compat_thread(struct thread_info *thread) } #endif /* CONFIG_COMPAT */ -#endif /* __KERNEL__ */ #endif /* __ASM_COMPAT_H */ diff --git a/arch/arm64/include/asm/cpu_ops.h b/arch/arm64/include/asm/cpu_ops.h index c09d633c3109..86aabf1e0199 100644 --- a/arch/arm64/include/asm/cpu_ops.h +++ b/arch/arm64/include/asm/cpu_ops.h @@ -23,6 +23,8 @@ * @cpu_boot: Boots a cpu into the kernel. * @cpu_postboot: Optionally, perform any post-boot cleanup or necesary * synchronisation. Called from the cpu being booted. + * @cpu_can_disable: Determines whether a CPU can be disabled based on + * mechanism-specific information. * @cpu_disable: Prepares a cpu to die. May fail for some mechanism-specific * reason, which will cause the hot unplug to be aborted. Called * from the cpu to be killed. @@ -42,6 +44,7 @@ struct cpu_operations { int (*cpu_boot)(unsigned int); void (*cpu_postboot)(void); #ifdef CONFIG_HOTPLUG_CPU + bool (*cpu_can_disable)(unsigned int cpu); int (*cpu_disable)(unsigned int cpu); void (*cpu_die)(unsigned int cpu); int (*cpu_kill)(unsigned int cpu); diff --git a/arch/arm64/include/asm/cpufeature.h b/arch/arm64/include/asm/cpufeature.h index c96ffa4722d3..9cde5d2e768f 100644 --- a/arch/arm64/include/asm/cpufeature.h +++ b/arch/arm64/include/asm/cpufeature.h @@ -289,9 +289,16 @@ struct arm64_cpu_capabilities { u16 type; bool (*matches)(const struct arm64_cpu_capabilities *caps, int scope); /* - * Take the appropriate actions to enable this capability for this CPU. - * For each successfully booted CPU, this method is called for each - * globally detected capability. + * Take the appropriate actions to configure this capability + * for this CPU. If the capability is detected by the kernel + * this will be called on all the CPUs in the system, + * including the hotplugged CPUs, regardless of whether the + * capability is available on that specific CPU. This is + * useful for some capabilities (e.g, working around CPU + * errata), where all the CPUs must take some action (e.g, + * changing system control/configuration). Thus, if an action + * is required only if the CPU has the capability, then the + * routine must check it before taking any action. */ void (*cpu_enable)(const struct arm64_cpu_capabilities *cap); union { @@ -363,21 +370,6 @@ cpucap_multi_entry_cap_matches(const struct arm64_cpu_capabilities *entry, return false; } -/* - * Take appropriate action for all matching entries in the shared capability - * entry. - */ -static inline void -cpucap_multi_entry_cap_cpu_enable(const struct arm64_cpu_capabilities *entry) -{ - const struct arm64_cpu_capabilities *caps; - - for (caps = entry->match_list; caps->matches; caps++) - if (caps->matches(caps, SCOPE_LOCAL_CPU) && - caps->cpu_enable) - caps->cpu_enable(caps); -} - extern DECLARE_BITMAP(cpu_hwcaps, ARM64_NCAPS); extern struct static_key_false cpu_hwcap_keys[ARM64_NCAPS]; extern struct static_key_false arm64_const_caps_ready; diff --git a/arch/arm64/include/asm/cputype.h b/arch/arm64/include/asm/cputype.h index e7d46631cc42..b1454d117cd2 100644 --- a/arch/arm64/include/asm/cputype.h +++ b/arch/arm64/include/asm/cputype.h @@ -51,14 +51,6 @@ #define MIDR_CPU_MODEL_MASK (MIDR_IMPLEMENTOR_MASK | MIDR_PARTNUM_MASK | \ MIDR_ARCHITECTURE_MASK) -#define MIDR_IS_CPU_MODEL_RANGE(midr, model, rv_min, rv_max) \ -({ \ - u32 _model = (midr) & MIDR_CPU_MODEL_MASK; \ - u32 rv = (midr) & (MIDR_REVISION_MASK | MIDR_VARIANT_MASK); \ - \ - _model == (model) && rv >= (rv_min) && rv <= (rv_max); \ - }) - #define ARM_CPU_IMP_ARM 0x41 #define ARM_CPU_IMP_APM 0x50 #define ARM_CPU_IMP_CAVIUM 0x43 @@ -159,10 +151,19 @@ struct midr_range { #define MIDR_REV(m, v, r) MIDR_RANGE(m, v, r, v, r) #define MIDR_ALL_VERSIONS(m) MIDR_RANGE(m, 0, 0, 0xf, 0xf) +static inline bool midr_is_cpu_model_range(u32 midr, u32 model, u32 rv_min, + u32 rv_max) +{ + u32 _model = midr & MIDR_CPU_MODEL_MASK; + u32 rv = midr & (MIDR_REVISION_MASK | MIDR_VARIANT_MASK); + + return _model == model && rv >= rv_min && rv <= rv_max; +} + static inline bool is_midr_in_range(u32 midr, struct midr_range const *range) { - return MIDR_IS_CPU_MODEL_RANGE(midr, range->model, - range->rv_min, range->rv_max); + return midr_is_cpu_model_range(midr, range->model, + range->rv_min, range->rv_max); } static inline bool diff --git a/arch/arm64/include/asm/debug-monitors.h b/arch/arm64/include/asm/debug-monitors.h index d8ec5bb881c2..7619f473155f 100644 --- a/arch/arm64/include/asm/debug-monitors.h +++ b/arch/arm64/include/asm/debug-monitors.h @@ -5,8 +5,6 @@ #ifndef __ASM_DEBUG_MONITORS_H #define __ASM_DEBUG_MONITORS_H -#ifdef __KERNEL__ - #include <linux/errno.h> #include <linux/types.h> #include <asm/brk-imm.h> @@ -128,5 +126,4 @@ static inline int reinstall_suspended_bps(struct pt_regs *regs) int aarch32_break_handler(struct pt_regs *regs); #endif /* __ASSEMBLY */ -#endif /* __KERNEL__ */ #endif /* __ASM_DEBUG_MONITORS_H */ diff --git a/arch/arm64/include/asm/dma-mapping.h b/arch/arm64/include/asm/dma-mapping.h index bdcb0922a40c..fb3e5044f473 100644 --- a/arch/arm64/include/asm/dma-mapping.h +++ b/arch/arm64/include/asm/dma-mapping.h @@ -5,8 +5,6 @@ #ifndef __ASM_DMA_MAPPING_H #define __ASM_DMA_MAPPING_H -#ifdef __KERNEL__ - #include <linux/types.h> #include <linux/vmalloc.h> @@ -27,5 +25,4 @@ static inline bool is_device_dma_coherent(struct device *dev) return dev->dma_coherent; } -#endif /* __KERNEL__ */ #endif /* __ASM_DMA_MAPPING_H */ diff --git a/arch/arm64/include/asm/esr.h b/arch/arm64/include/asm/esr.h index 65ac18400979..cb29253ae86b 100644 --- a/arch/arm64/include/asm/esr.h +++ b/arch/arm64/include/asm/esr.h @@ -34,7 +34,8 @@ #define ESR_ELx_EC_SMC64 (0x17) /* EL2 and above */ #define ESR_ELx_EC_SYS64 (0x18) #define ESR_ELx_EC_SVE (0x19) -/* Unallocated EC: 0x1A - 0x1E */ +#define ESR_ELx_EC_ERET (0x1a) /* EL2 only */ +/* Unallocated EC: 0x1b - 0x1E */ #define ESR_ELx_EC_IMP_DEF (0x1f) /* EL3 only */ #define ESR_ELx_EC_IABT_LOW (0x20) #define ESR_ELx_EC_IABT_CUR (0x21) diff --git a/arch/arm64/include/asm/exception.h b/arch/arm64/include/asm/exception.h index ed57b760f38c..a17393ff6677 100644 --- a/arch/arm64/include/asm/exception.h +++ b/arch/arm64/include/asm/exception.h @@ -30,4 +30,6 @@ static inline u32 disr_to_esr(u64 disr) return esr; } +asmlinkage void enter_from_user_mode(void); + #endif /* __ASM_EXCEPTION_H */ diff --git a/arch/arm64/include/asm/fpsimd.h b/arch/arm64/include/asm/fpsimd.h index b6a2c352f4c3..59f10dd13f12 100644 --- a/arch/arm64/include/asm/fpsimd.h +++ b/arch/arm64/include/asm/fpsimd.h @@ -21,7 +21,7 @@ #include <linux/stddef.h> #include <linux/types.h> -#if defined(__KERNEL__) && defined(CONFIG_COMPAT) +#ifdef CONFIG_COMPAT /* Masks for extracting the FPSR and FPCR from the FPSCR */ #define VFP_FPSCR_STAT_MASK 0xf800009f #define VFP_FPSCR_CTRL_MASK 0x07f79f00 diff --git a/arch/arm64/include/asm/futex.h b/arch/arm64/include/asm/futex.h index 6211e3105491..6cc26a127819 100644 --- a/arch/arm64/include/asm/futex.h +++ b/arch/arm64/include/asm/futex.h @@ -5,8 +5,6 @@ #ifndef __ASM_FUTEX_H #define __ASM_FUTEX_H -#ifdef __KERNEL__ - #include <linux/futex.h> #include <linux/uaccess.h> @@ -129,5 +127,4 @@ futex_atomic_cmpxchg_inatomic(u32 *uval, u32 __user *_uaddr, return ret; } -#endif /* __KERNEL__ */ #endif /* __ASM_FUTEX_H */ diff --git a/arch/arm64/include/asm/hw_breakpoint.h b/arch/arm64/include/asm/hw_breakpoint.h index db9ab760e6fd..bc7aaed4b34e 100644 --- a/arch/arm64/include/asm/hw_breakpoint.h +++ b/arch/arm64/include/asm/hw_breakpoint.h @@ -10,8 +10,6 @@ #include <asm/sysreg.h> #include <asm/virt.h> -#ifdef __KERNEL__ - struct arch_hw_breakpoint_ctrl { u32 __reserved : 19, len : 8, @@ -156,5 +154,4 @@ static inline int get_num_wrps(void) ID_AA64DFR0_WRPS_SHIFT); } -#endif /* __KERNEL__ */ #endif /* __ASM_BREAKPOINT_H */ diff --git a/arch/arm64/include/asm/io.h b/arch/arm64/include/asm/io.h index 7ed92626949d..e9763831186a 100644 --- a/arch/arm64/include/asm/io.h +++ b/arch/arm64/include/asm/io.h @@ -8,8 +8,6 @@ #ifndef __ASM_IO_H #define __ASM_IO_H -#ifdef __KERNEL__ - #include <linux/types.h> #include <asm/byteorder.h> @@ -97,7 +95,7 @@ static inline u64 __raw_readq(const volatile void __iomem *addr) ({ \ unsigned long tmp; \ \ - rmb(); \ + dma_rmb(); \ \ /* \ * Create a dummy control dependency from the IO read to any \ @@ -111,7 +109,7 @@ static inline u64 __raw_readq(const volatile void __iomem *addr) }) #define __io_par(v) __iormb(v) -#define __iowmb() wmb() +#define __iowmb() dma_wmb() /* * Relaxed I/O memory access primitives. These follow the Device memory @@ -207,5 +205,4 @@ extern int valid_mmap_phys_addr_range(unsigned long pfn, size_t size); extern int devmem_is_allowed(unsigned long pfn); -#endif /* __KERNEL__ */ #endif /* __ASM_IO_H */ diff --git a/arch/arm64/include/asm/irqflags.h b/arch/arm64/include/asm/irqflags.h index 7872f260c9ee..1a59f0ed1ae3 100644 --- a/arch/arm64/include/asm/irqflags.h +++ b/arch/arm64/include/asm/irqflags.h @@ -5,8 +5,6 @@ #ifndef __ASM_IRQFLAGS_H #define __ASM_IRQFLAGS_H -#ifdef __KERNEL__ - #include <asm/alternative.h> #include <asm/ptrace.h> #include <asm/sysreg.h> @@ -128,5 +126,4 @@ static inline void arch_local_irq_restore(unsigned long flags) : "memory"); } -#endif -#endif +#endif /* __ASM_IRQFLAGS_H */ diff --git a/arch/arm64/include/asm/memory.h b/arch/arm64/include/asm/memory.h index a713bad71db5..b61b50bf68b1 100644 --- a/arch/arm64/include/asm/memory.h +++ b/arch/arm64/include/asm/memory.h @@ -216,7 +216,7 @@ static inline unsigned long kaslr_offset(void) * pass on to access_ok(), for instance. */ #define untagged_addr(addr) \ - ((__typeof__(addr))sign_extend64((u64)(addr), 55)) + ((__force __typeof__(addr))sign_extend64((__force u64)(addr), 55)) #ifdef CONFIG_KASAN_SW_TAGS #define __tag_shifted(tag) ((u64)(tag) << 56) diff --git a/arch/arm64/include/asm/mmu.h b/arch/arm64/include/asm/mmu.h index fd6161336653..f217e3292919 100644 --- a/arch/arm64/include/asm/mmu.h +++ b/arch/arm64/include/asm/mmu.h @@ -126,7 +126,7 @@ extern void init_mem_pgprot(void); extern void create_pgd_mapping(struct mm_struct *mm, phys_addr_t phys, unsigned long virt, phys_addr_t size, pgprot_t prot, bool page_mappings_only); -extern void *fixmap_remap_fdt(phys_addr_t dt_phys); +extern void *fixmap_remap_fdt(phys_addr_t dt_phys, int *size, pgprot_t prot); extern void mark_linear_text_alias_ro(void); #define INIT_MM_CONTEXT(name) \ diff --git a/arch/arm64/include/asm/pci.h b/arch/arm64/include/asm/pci.h index 9e690686e8aa..70b323cf8300 100644 --- a/arch/arm64/include/asm/pci.h +++ b/arch/arm64/include/asm/pci.h @@ -1,7 +1,6 @@ /* SPDX-License-Identifier: GPL-2.0 */ #ifndef __ASM_PCI_H #define __ASM_PCI_H -#ifdef __KERNEL__ #include <linux/types.h> #include <linux/slab.h> @@ -35,5 +34,4 @@ static inline int pci_proc_domain(struct pci_bus *bus) } #endif /* CONFIG_PCI */ -#endif /* __KERNEL__ */ #endif /* __ASM_PCI_H */ diff --git a/arch/arm64/include/asm/pgtable.h b/arch/arm64/include/asm/pgtable.h index 979e24fadf35..9a8f7e51c2b1 100644 --- a/arch/arm64/include/asm/pgtable.h +++ b/arch/arm64/include/asm/pgtable.h @@ -220,8 +220,10 @@ static inline void set_pte(pte_t *ptep, pte_t pte) * Only if the new pte is valid and kernel, otherwise TLB maintenance * or update_mmu_cache() have the necessary barriers. */ - if (pte_valid_not_user(pte)) + if (pte_valid_not_user(pte)) { dsb(ishst); + isb(); + } } extern void __sync_icache_dcache(pte_t pteval); @@ -481,8 +483,10 @@ static inline void set_pmd(pmd_t *pmdp, pmd_t pmd) WRITE_ONCE(*pmdp, pmd); - if (pmd_valid(pmd)) + if (pmd_valid(pmd)) { dsb(ishst); + isb(); + } } static inline void pmd_clear(pmd_t *pmdp) @@ -540,8 +544,10 @@ static inline void set_pud(pud_t *pudp, pud_t pud) WRITE_ONCE(*pudp, pud); - if (pud_valid(pud)) + if (pud_valid(pud)) { dsb(ishst); + isb(); + } } static inline void pud_clear(pud_t *pudp) @@ -599,6 +605,7 @@ static inline void set_pgd(pgd_t *pgdp, pgd_t pgd) WRITE_ONCE(*pgdp, pgd); dsb(ishst); + isb(); } static inline void pgd_clear(pgd_t *pgdp) diff --git a/arch/arm64/include/asm/proc-fns.h b/arch/arm64/include/asm/proc-fns.h index 368d90a9d0e5..a2ce65a0c1fa 100644 --- a/arch/arm64/include/asm/proc-fns.h +++ b/arch/arm64/include/asm/proc-fns.h @@ -9,7 +9,6 @@ #ifndef __ASM_PROCFNS_H #define __ASM_PROCFNS_H -#ifdef __KERNEL__ #ifndef __ASSEMBLY__ #include <asm/page.h> @@ -25,5 +24,4 @@ extern u64 cpu_do_resume(phys_addr_t ptr, u64 idmap_ttbr); #include <asm/memory.h> #endif /* __ASSEMBLY__ */ -#endif /* __KERNEL__ */ #endif /* __ASM_PROCFNS_H */ diff --git a/arch/arm64/include/asm/processor.h b/arch/arm64/include/asm/processor.h index e4c93945e477..c67848c55009 100644 --- a/arch/arm64/include/asm/processor.h +++ b/arch/arm64/include/asm/processor.h @@ -20,7 +20,6 @@ #define NET_IP_ALIGN 0 #ifndef __ASSEMBLY__ -#ifdef __KERNEL__ #include <linux/build_bug.h> #include <linux/cache.h> @@ -283,8 +282,6 @@ static inline void spin_lock_prefetch(const void *ptr) #define HAVE_ARCH_PICK_MMAP_LAYOUT -#endif - extern unsigned long __ro_after_init signal_minsigstksz; /* sigframe size */ extern void __init minsigstksz_setup(void); @@ -306,6 +303,14 @@ extern void __init minsigstksz_setup(void); /* PR_PAC_RESET_KEYS prctl */ #define PAC_RESET_KEYS(tsk, arg) ptrauth_prctl_reset_keys(tsk, arg) +#ifdef CONFIG_ARM64_TAGGED_ADDR_ABI +/* PR_{SET,GET}_TAGGED_ADDR_CTRL prctl */ +long set_tagged_addr_ctrl(unsigned long arg); +long get_tagged_addr_ctrl(void); +#define SET_TAGGED_ADDR_CTRL(arg) set_tagged_addr_ctrl(arg) +#define GET_TAGGED_ADDR_CTRL() get_tagged_addr_ctrl() +#endif + /* * For CONFIG_GCC_PLUGIN_STACKLEAK * diff --git a/arch/arm64/include/asm/ptrace.h b/arch/arm64/include/asm/ptrace.h index 1dcf63a9ac1f..fbebb411ae20 100644 --- a/arch/arm64/include/asm/ptrace.h +++ b/arch/arm64/include/asm/ptrace.h @@ -301,6 +301,11 @@ static inline unsigned long regs_return_value(struct pt_regs *regs) return regs->regs[0]; } +static inline void regs_set_return_value(struct pt_regs *regs, unsigned long rc) +{ + regs->regs[0] = rc; +} + /** * regs_get_kernel_argument() - get Nth function argument in kernel * @regs: pt_regs of that context diff --git a/arch/arm64/include/asm/signal32.h b/arch/arm64/include/asm/signal32.h index bd43d1cf724b..7e9f163d02ec 100644 --- a/arch/arm64/include/asm/signal32.h +++ b/arch/arm64/include/asm/signal32.h @@ -5,7 +5,6 @@ #ifndef __ASM_SIGNAL32_H #define __ASM_SIGNAL32_H -#ifdef __KERNEL__ #ifdef CONFIG_COMPAT #include <linux/compat.h> @@ -79,5 +78,4 @@ static inline void compat_setup_restart_syscall(struct pt_regs *regs) { } #endif /* CONFIG_COMPAT */ -#endif /* __KERNEL__ */ #endif /* __ASM_SIGNAL32_H */ diff --git a/arch/arm64/include/asm/sysreg.h b/arch/arm64/include/asm/sysreg.h index 06ebcfef73df..972d196c7714 100644 --- a/arch/arm64/include/asm/sysreg.h +++ b/arch/arm64/include/asm/sysreg.h @@ -212,6 +212,9 @@ #define SYS_FAR_EL1 sys_reg(3, 0, 6, 0, 0) #define SYS_PAR_EL1 sys_reg(3, 0, 7, 4, 0) +#define SYS_PAR_EL1_F BIT(1) +#define SYS_PAR_EL1_FST GENMASK(6, 1) + /*** Statistical Profiling Extension ***/ /* ID registers */ #define SYS_PMSIDR_EL1 sys_reg(3, 0, 9, 9, 7) @@ -499,28 +502,11 @@ #define SCTLR_EL2_RES1 ((BIT(4)) | (BIT(5)) | (BIT(11)) | (BIT(16)) | \ (BIT(18)) | (BIT(22)) | (BIT(23)) | (BIT(28)) | \ (BIT(29))) -#define SCTLR_EL2_RES0 ((BIT(6)) | (BIT(7)) | (BIT(8)) | (BIT(9)) | \ - (BIT(10)) | (BIT(13)) | (BIT(14)) | (BIT(15)) | \ - (BIT(17)) | (BIT(20)) | (BIT(24)) | (BIT(26)) | \ - (BIT(27)) | (BIT(30)) | (BIT(31)) | \ - (0xffffefffUL << 32)) #ifdef CONFIG_CPU_BIG_ENDIAN #define ENDIAN_SET_EL2 SCTLR_ELx_EE -#define ENDIAN_CLEAR_EL2 0 #else #define ENDIAN_SET_EL2 0 -#define ENDIAN_CLEAR_EL2 SCTLR_ELx_EE -#endif - -/* SCTLR_EL2 value used for the hyp-stub */ -#define SCTLR_EL2_SET (SCTLR_ELx_IESB | ENDIAN_SET_EL2 | SCTLR_EL2_RES1) -#define SCTLR_EL2_CLEAR (SCTLR_ELx_M | SCTLR_ELx_A | SCTLR_ELx_C | \ - SCTLR_ELx_SA | SCTLR_ELx_I | SCTLR_ELx_WXN | \ - SCTLR_ELx_DSSBS | ENDIAN_CLEAR_EL2 | SCTLR_EL2_RES0) - -#if (SCTLR_EL2_SET ^ SCTLR_EL2_CLEAR) != 0xffffffffffffffffUL -#error "Inconsistent SCTLR_EL2 set/clear bits" #endif /* SCTLR_EL1 specific flags. */ @@ -539,16 +525,11 @@ #define SCTLR_EL1_RES1 ((BIT(11)) | (BIT(20)) | (BIT(22)) | (BIT(28)) | \ (BIT(29))) -#define SCTLR_EL1_RES0 ((BIT(6)) | (BIT(10)) | (BIT(13)) | (BIT(17)) | \ - (BIT(27)) | (BIT(30)) | (BIT(31)) | \ - (0xffffefffUL << 32)) #ifdef CONFIG_CPU_BIG_ENDIAN #define ENDIAN_SET_EL1 (SCTLR_EL1_E0E | SCTLR_ELx_EE) -#define ENDIAN_CLEAR_EL1 0 #else #define ENDIAN_SET_EL1 0 -#define ENDIAN_CLEAR_EL1 (SCTLR_EL1_E0E | SCTLR_ELx_EE) #endif #define SCTLR_EL1_SET (SCTLR_ELx_M | SCTLR_ELx_C | SCTLR_ELx_SA |\ @@ -556,13 +537,6 @@ SCTLR_EL1_DZE | SCTLR_EL1_UCT |\ SCTLR_EL1_NTWE | SCTLR_ELx_IESB | SCTLR_EL1_SPAN |\ ENDIAN_SET_EL1 | SCTLR_EL1_UCI | SCTLR_EL1_RES1) -#define SCTLR_EL1_CLEAR (SCTLR_ELx_A | SCTLR_EL1_CP15BEN | SCTLR_EL1_ITD |\ - SCTLR_EL1_UMA | SCTLR_ELx_WXN | ENDIAN_CLEAR_EL1 |\ - SCTLR_ELx_DSSBS | SCTLR_EL1_NTWI | SCTLR_EL1_RES0) - -#if (SCTLR_EL1_SET ^ SCTLR_EL1_CLEAR) != 0xffffffffffffffffUL -#error "Inconsistent SCTLR_EL1 set/clear bits" -#endif /* id_aa64isar0 */ #define ID_AA64ISAR0_TS_SHIFT 52 diff --git a/arch/arm64/include/asm/thread_info.h b/arch/arm64/include/asm/thread_info.h index 180b34ec5965..f0cec4160136 100644 --- a/arch/arm64/include/asm/thread_info.h +++ b/arch/arm64/include/asm/thread_info.h @@ -8,8 +8,6 @@ #ifndef __ASM_THREAD_INFO_H #define __ASM_THREAD_INFO_H -#ifdef __KERNEL__ - #include <linux/compiler.h> #ifndef __ASSEMBLY__ @@ -59,29 +57,18 @@ void arch_release_task_struct(struct task_struct *tsk); #endif -/* - * thread information flags: - * TIF_SYSCALL_TRACE - syscall trace active - * TIF_SYSCALL_TRACEPOINT - syscall tracepoint for ftrace - * TIF_SYSCALL_AUDIT - syscall auditing - * TIF_SECCOMP - syscall secure computing - * TIF_SYSCALL_EMU - syscall emulation active - * TIF_SIGPENDING - signal pending - * TIF_NEED_RESCHED - rescheduling necessary - * TIF_NOTIFY_RESUME - callback before returning to user - */ -#define TIF_SIGPENDING 0 -#define TIF_NEED_RESCHED 1 +#define TIF_SIGPENDING 0 /* signal pending */ +#define TIF_NEED_RESCHED 1 /* rescheduling necessary */ #define TIF_NOTIFY_RESUME 2 /* callback before returning to user */ #define TIF_FOREIGN_FPSTATE 3 /* CPU's FP state is not current's */ #define TIF_UPROBE 4 /* uprobe breakpoint or singlestep */ #define TIF_FSCHECK 5 /* Check FS is USER_DS on return */ #define TIF_NOHZ 7 -#define TIF_SYSCALL_TRACE 8 -#define TIF_SYSCALL_AUDIT 9 -#define TIF_SYSCALL_TRACEPOINT 10 -#define TIF_SECCOMP 11 -#define TIF_SYSCALL_EMU 12 +#define TIF_SYSCALL_TRACE 8 /* syscall trace active */ +#define TIF_SYSCALL_AUDIT 9 /* syscall auditing */ +#define TIF_SYSCALL_TRACEPOINT 10 /* syscall tracepoint for ftrace */ +#define TIF_SECCOMP 11 /* syscall secure computing */ +#define TIF_SYSCALL_EMU 12 /* syscall emulation active */ #define TIF_MEMDIE 18 /* is terminating due to OOM killer */ #define TIF_FREEZE 19 #define TIF_RESTORE_SIGMASK 20 @@ -90,6 +77,7 @@ void arch_release_task_struct(struct task_struct *tsk); #define TIF_SVE 23 /* Scalable Vector Extension in use */ #define TIF_SVE_VL_INHERIT 24 /* Inherit sve_vl_onexec across exec */ #define TIF_SSBD 25 /* Wants SSB mitigation */ +#define TIF_TAGGED_ADDR 26 /* Allow tagged user addresses */ #define _TIF_SIGPENDING (1 << TIF_SIGPENDING) #define _TIF_NEED_RESCHED (1 << TIF_NEED_RESCHED) @@ -121,5 +109,4 @@ void arch_release_task_struct(struct task_struct *tsk); .addr_limit = KERNEL_DS, \ } -#endif /* __KERNEL__ */ #endif /* __ASM_THREAD_INFO_H */ diff --git a/arch/arm64/include/asm/tlbflush.h b/arch/arm64/include/asm/tlbflush.h index 8af7a85f76bd..bc3949064725 100644 --- a/arch/arm64/include/asm/tlbflush.h +++ b/arch/arm64/include/asm/tlbflush.h @@ -251,6 +251,7 @@ static inline void __flush_tlb_kernel_pgtable(unsigned long kaddr) dsb(ishst); __tlbi(vaae1is, addr); dsb(ish); + isb(); } #endif diff --git a/arch/arm64/include/asm/topology.h b/arch/arm64/include/asm/topology.h index 0524f2438649..a4d945db95a2 100644 --- a/arch/arm64/include/asm/topology.h +++ b/arch/arm64/include/asm/topology.h @@ -4,29 +4,6 @@ #include <linux/cpumask.h> -struct cpu_topology { - int thread_id; - int core_id; - int package_id; - int llc_id; - cpumask_t thread_sibling; - cpumask_t core_sibling; - cpumask_t llc_sibling; -}; - -extern struct cpu_topology cpu_topology[NR_CPUS]; - -#define topology_physical_package_id(cpu) (cpu_topology[cpu].package_id) -#define topology_core_id(cpu) (cpu_topology[cpu].core_id) -#define topology_core_cpumask(cpu) (&cpu_topology[cpu].core_sibling) -#define topology_sibling_cpumask(cpu) (&cpu_topology[cpu].thread_sibling) -#define topology_llc_cpumask(cpu) (&cpu_topology[cpu].llc_sibling) - -void init_cpu_topology(void); -void store_cpu_topology(unsigned int cpuid); -void remove_cpu_topology(unsigned int cpuid); -const struct cpumask *cpu_coregroup_mask(int cpu); - #ifdef CONFIG_NUMA struct pci_bus; diff --git a/arch/arm64/include/asm/uaccess.h b/arch/arm64/include/asm/uaccess.h index 5a1c32260c1f..097d6bfac0b7 100644 --- a/arch/arm64/include/asm/uaccess.h +++ b/arch/arm64/include/asm/uaccess.h @@ -62,6 +62,10 @@ static inline unsigned long __range_ok(const void __user *addr, unsigned long si { unsigned long ret, limit = current_thread_info()->addr_limit; + if (IS_ENABLED(CONFIG_ARM64_TAGGED_ADDR_ABI) && + test_thread_flag(TIF_TAGGED_ADDR)) + addr = untagged_addr(addr); + __chk_user_ptr(addr); asm volatile( // A + B <= C + 1 for all A,B,C, in four easy steps: @@ -215,7 +219,8 @@ static inline void uaccess_enable_not_uao(void) /* * Sanitise a uaccess pointer such that it becomes NULL if above the - * current addr_limit. + * current addr_limit. In case the pointer is tagged (has the top byte set), + * untag the pointer before checking. */ #define uaccess_mask_ptr(ptr) (__typeof__(ptr))__uaccess_mask_ptr(ptr) static inline void __user *__uaccess_mask_ptr(const void __user *ptr) @@ -223,10 +228,11 @@ static inline void __user *__uaccess_mask_ptr(const void __user *ptr) void __user *safe_ptr; asm volatile( - " bics xzr, %1, %2\n" + " bics xzr, %3, %2\n" " csel %0, %1, xzr, eq\n" : "=&r" (safe_ptr) - : "r" (ptr), "r" (current_thread_info()->addr_limit) + : "r" (ptr), "r" (current_thread_info()->addr_limit), + "r" (untagged_addr(ptr)) : "cc"); csdb(); diff --git a/arch/arm64/include/asm/vdso.h b/arch/arm64/include/asm/vdso.h index 9c15e0a06301..07468428fd29 100644 --- a/arch/arm64/include/asm/vdso.h +++ b/arch/arm64/include/asm/vdso.h @@ -5,8 +5,6 @@ #ifndef __ASM_VDSO_H #define __ASM_VDSO_H -#ifdef __KERNEL__ - /* * Default link address for the vDSO. * Since we randomise the VDSO mapping, there's little point in trying @@ -28,6 +26,4 @@ #endif /* !__ASSEMBLY__ */ -#endif /* __KERNEL__ */ - #endif /* __ASM_VDSO_H */ diff --git a/arch/arm64/include/asm/vdso_datapage.h b/arch/arm64/include/asm/vdso_datapage.h index ba6dbc3de864..1f38bf330a6e 100644 --- a/arch/arm64/include/asm/vdso_datapage.h +++ b/arch/arm64/include/asm/vdso_datapage.h @@ -5,8 +5,6 @@ #ifndef __ASM_VDSO_DATAPAGE_H #define __ASM_VDSO_DATAPAGE_H -#ifdef __KERNEL__ - #ifndef __ASSEMBLY__ struct vdso_data { @@ -32,6 +30,4 @@ struct vdso_data { #endif /* !__ASSEMBLY__ */ -#endif /* __KERNEL__ */ - #endif /* __ASM_VDSO_DATAPAGE_H */ |