diff options
Diffstat (limited to 'arch/arm/include')
25 files changed, 269 insertions, 221 deletions
diff --git a/arch/arm/include/asm/Kbuild b/arch/arm/include/asm/Kbuild index 0f2c8a2a8131..873e3c189279 100644 --- a/arch/arm/include/asm/Kbuild +++ b/arch/arm/include/asm/Kbuild @@ -1,4 +1,3 @@ -generic-y += clkdev.h generic-y += current.h generic-y += early_ioremap.h generic-y += emergency-restart.h diff --git a/arch/arm/include/asm/bitops.h b/arch/arm/include/asm/bitops.h index ce5ee762ed66..4cab9bb823fb 100644 --- a/arch/arm/include/asm/bitops.h +++ b/arch/arm/include/asm/bitops.h @@ -338,6 +338,7 @@ static inline int find_next_bit_le(const void *p, int size, int offset) #endif +#include <asm-generic/bitops/find.h> #include <asm-generic/bitops/le.h> /* diff --git a/arch/arm/include/asm/dma-direct.h b/arch/arm/include/asm/dma-direct.h new file mode 100644 index 000000000000..5b0a8a421894 --- /dev/null +++ b/arch/arm/include/asm/dma-direct.h @@ -0,0 +1,36 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef ASM_ARM_DMA_DIRECT_H +#define ASM_ARM_DMA_DIRECT_H 1 + +static inline dma_addr_t phys_to_dma(struct device *dev, phys_addr_t paddr) +{ + unsigned int offset = paddr & ~PAGE_MASK; + return pfn_to_dma(dev, __phys_to_pfn(paddr)) + offset; +} + +static inline phys_addr_t dma_to_phys(struct device *dev, dma_addr_t dev_addr) +{ + unsigned int offset = dev_addr & ~PAGE_MASK; + return __pfn_to_phys(dma_to_pfn(dev, dev_addr)) + offset; +} + +static inline bool dma_capable(struct device *dev, dma_addr_t addr, size_t size) +{ + u64 limit, mask; + + if (!dev->dma_mask) + return 0; + + mask = *dev->dma_mask; + + limit = (mask + 1) & ~mask; + if (limit && size > limit) + return 0; + + if ((addr | (addr + size - 1)) & ~mask) + return 0; + + return 1; +} + +#endif /* ASM_ARM_DMA_DIRECT_H */ diff --git a/arch/arm/include/asm/dma-mapping.h b/arch/arm/include/asm/dma-mapping.h index daf837423a76..8436f6ade57d 100644 --- a/arch/arm/include/asm/dma-mapping.h +++ b/arch/arm/include/asm/dma-mapping.h @@ -18,7 +18,7 @@ extern const struct dma_map_ops arm_coherent_dma_ops; static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus) { - return IS_ENABLED(CONFIG_MMU) ? &arm_dma_ops : &dma_noop_ops; + return IS_ENABLED(CONFIG_MMU) ? &arm_dma_ops : &dma_direct_ops; } #ifdef __arch_page_to_dma @@ -109,39 +109,6 @@ static inline bool is_device_dma_coherent(struct device *dev) return dev->archdata.dma_coherent; } -static inline dma_addr_t phys_to_dma(struct device *dev, phys_addr_t paddr) -{ - unsigned int offset = paddr & ~PAGE_MASK; - return pfn_to_dma(dev, __phys_to_pfn(paddr)) + offset; -} - -static inline phys_addr_t dma_to_phys(struct device *dev, dma_addr_t dev_addr) -{ - unsigned int offset = dev_addr & ~PAGE_MASK; - return __pfn_to_phys(dma_to_pfn(dev, dev_addr)) + offset; -} - -static inline bool dma_capable(struct device *dev, dma_addr_t addr, size_t size) -{ - u64 limit, mask; - - if (!dev->dma_mask) - return 0; - - mask = *dev->dma_mask; - - limit = (mask + 1) & ~mask; - if (limit && size > limit) - return 0; - - if ((addr | (addr + size - 1)) & ~mask) - return 0; - - return 1; -} - -static inline void dma_mark_clean(void *addr, size_t size) { } - /** * arm_dma_alloc - allocate consistent memory for DMA * @dev: valid struct device pointer, or NULL for ISA and EISA-like devices diff --git a/arch/arm/include/asm/exception.h b/arch/arm/include/asm/exception.h index a7273ad9587a..58e039a851af 100644 --- a/arch/arm/include/asm/exception.h +++ b/arch/arm/include/asm/exception.h @@ -10,11 +10,10 @@ #include <linux/interrupt.h> -#define __exception __attribute__((section(".exception.text"))) #ifdef CONFIG_FUNCTION_GRAPH_TRACER #define __exception_irq_entry __irq_entry #else -#define __exception_irq_entry __exception +#define __exception_irq_entry #endif #endif /* __ASM_ARM_EXCEPTION_H */ diff --git a/arch/arm/include/asm/glue-cache.h b/arch/arm/include/asm/glue-cache.h index 01c3d92624e5..8d1f498e5dd8 100644 --- a/arch/arm/include/asm/glue-cache.h +++ b/arch/arm/include/asm/glue-cache.h @@ -117,6 +117,10 @@ # endif #endif +#if defined(CONFIG_CACHE_B15_RAC) +# define MULTI_CACHE 1 +#endif + #if defined(CONFIG_CPU_V7M) # define MULTI_CACHE 1 #endif diff --git a/arch/arm/include/asm/hardware/cache-b15-rac.h b/arch/arm/include/asm/hardware/cache-b15-rac.h new file mode 100644 index 000000000000..3d43ec06fd35 --- /dev/null +++ b/arch/arm/include/asm/hardware/cache-b15-rac.h @@ -0,0 +1,10 @@ +#ifndef __ASM_ARM_HARDWARE_CACHE_B15_RAC_H +#define __ASM_ARM_HARDWARE_CACHE_B15_RAC_H + +#ifndef __ASSEMBLY__ + +void b15_flush_kern_cache_all(void); + +#endif + +#endif diff --git a/arch/arm/include/asm/hardware/sa1111.h b/arch/arm/include/asm/hardware/sa1111.h index 0bbf163d1ed3..798e520e8a49 100644 --- a/arch/arm/include/asm/hardware/sa1111.h +++ b/arch/arm/include/asm/hardware/sa1111.h @@ -16,33 +16,6 @@ #include <mach/bitfield.h> /* - * The SA1111 is always located at virtual 0xf4000000, and is always - * "native" endian. - */ - -#define SA1111_VBASE 0xf4000000 - -/* Don't use these! */ -#define SA1111_p2v( x ) ((x) - SA1111_BASE + SA1111_VBASE) -#define SA1111_v2p( x ) ((x) - SA1111_VBASE + SA1111_BASE) - -#ifndef __ASSEMBLY__ -#define _SA1111(x) ((x) + sa1111->resource.start) -#endif - -#define sa1111_writel(val,addr) __raw_writel(val, addr) -#define sa1111_readl(addr) __raw_readl(addr) - -/* - * 26 bits of the SA-1110 address bus are available to the SA-1111. - * Use these when feeding target addresses to the DMA engines. - */ - -#define SA1111_ADDR_WIDTH (26) -#define SA1111_ADDR_MASK ((1<<SA1111_ADDR_WIDTH)-1) -#define SA1111_DMA_ADDR(x) ((x)&SA1111_ADDR_MASK) - -/* * Don't ask the (SAC) DMA engines to move less than this amount. */ @@ -417,7 +390,7 @@ struct sa1111_dev { struct resource res; void __iomem *mapbase; unsigned int skpcr_mask; - unsigned int irq[6]; + unsigned int hwirq[6]; u64 dma_mask; }; @@ -431,9 +404,6 @@ struct sa1111_driver { unsigned int devid; int (*probe)(struct sa1111_dev *); int (*remove)(struct sa1111_dev *); - int (*suspend)(struct sa1111_dev *, pm_message_t); - int (*resume)(struct sa1111_dev *); - void (*shutdown)(struct sa1111_dev *); }; #define SA1111_DRV(_d) container_of((_d), struct sa1111_driver, drv) diff --git a/arch/arm/include/asm/kvm_emulate.h b/arch/arm/include/asm/kvm_emulate.h index 3d22eb87f919..9003bd19cb70 100644 --- a/arch/arm/include/asm/kvm_emulate.h +++ b/arch/arm/include/asm/kvm_emulate.h @@ -131,7 +131,7 @@ static inline bool mode_has_spsr(struct kvm_vcpu *vcpu) static inline bool vcpu_mode_priv(struct kvm_vcpu *vcpu) { unsigned long cpsr_mode = vcpu->arch.ctxt.gp_regs.usr_regs.ARM_cpsr & MODE_MASK; - return cpsr_mode > USR_MODE;; + return cpsr_mode > USR_MODE; } static inline u32 kvm_vcpu_get_hsr(const struct kvm_vcpu *vcpu) diff --git a/arch/arm/include/asm/kvm_host.h b/arch/arm/include/asm/kvm_host.h index a9f7d3f47134..248b930563e5 100644 --- a/arch/arm/include/asm/kvm_host.h +++ b/arch/arm/include/asm/kvm_host.h @@ -48,6 +48,8 @@ KVM_ARCH_REQ_FLAGS(0, KVM_REQUEST_WAIT | KVM_REQUEST_NO_WAKEUP) #define KVM_REQ_IRQ_PENDING KVM_ARCH_REQ(1) +DECLARE_STATIC_KEY_FALSE(userspace_irqchip_in_use); + u32 *kvm_vcpu_reg(struct kvm_vcpu *vcpu, u8 reg_num, u32 mode); int __attribute_const__ kvm_target_cpu(void); int kvm_reset_vcpu(struct kvm_vcpu *vcpu); @@ -238,6 +240,9 @@ int kvm_arm_coproc_set_reg(struct kvm_vcpu *vcpu, const struct kvm_one_reg *); int handle_exit(struct kvm_vcpu *vcpu, struct kvm_run *run, int exception_index); +static inline void handle_exit_early(struct kvm_vcpu *vcpu, struct kvm_run *run, + int exception_index) {} + static inline void __cpu_init_hyp_mode(phys_addr_t pgd_ptr, unsigned long hyp_stack_ptr, unsigned long vector_ptr) @@ -301,4 +306,13 @@ int kvm_arm_vcpu_arch_has_attr(struct kvm_vcpu *vcpu, /* All host FP/SIMD state is restored on guest exit, so nothing to save: */ static inline void kvm_fpsimd_flush_cpu_state(void) {} +static inline void kvm_arm_vhe_guest_enter(void) {} +static inline void kvm_arm_vhe_guest_exit(void) {} + +static inline bool kvm_arm_harden_branch_predictor(void) +{ + /* No way to detect it yet, pretend it is not there. */ + return false; +} + #endif /* __ARM_KVM_HOST_H__ */ diff --git a/arch/arm/include/asm/kvm_hyp.h b/arch/arm/include/asm/kvm_hyp.h index ab20ffa8b9e7..1ab8329e9ff7 100644 --- a/arch/arm/include/asm/kvm_hyp.h +++ b/arch/arm/include/asm/kvm_hyp.h @@ -21,7 +21,6 @@ #include <linux/compiler.h> #include <linux/kvm_host.h> #include <asm/cp15.h> -#include <asm/kvm_mmu.h> #include <asm/vfp.h> #define __hyp_text __section(.hyp.text) notrace @@ -69,6 +68,8 @@ #define HIFAR __ACCESS_CP15(c6, 4, c0, 2) #define HPFAR __ACCESS_CP15(c6, 4, c0, 4) #define ICIALLUIS __ACCESS_CP15(c7, 0, c1, 0) +#define BPIALLIS __ACCESS_CP15(c7, 0, c1, 6) +#define ICIMVAU __ACCESS_CP15(c7, 0, c5, 1) #define ATS1CPR __ACCESS_CP15(c7, 0, c8, 0) #define TLBIALLIS __ACCESS_CP15(c8, 0, c3, 0) #define TLBIALL __ACCESS_CP15(c8, 0, c7, 0) diff --git a/arch/arm/include/asm/kvm_mmu.h b/arch/arm/include/asm/kvm_mmu.h index fa6f2174276b..de1b919404e4 100644 --- a/arch/arm/include/asm/kvm_mmu.h +++ b/arch/arm/include/asm/kvm_mmu.h @@ -37,6 +37,8 @@ #include <linux/highmem.h> #include <asm/cacheflush.h> +#include <asm/cputype.h> +#include <asm/kvm_hyp.h> #include <asm/pgalloc.h> #include <asm/stage2_pgtable.h> @@ -83,6 +85,18 @@ static inline pmd_t kvm_s2pmd_mkwrite(pmd_t pmd) return pmd; } +static inline pte_t kvm_s2pte_mkexec(pte_t pte) +{ + pte_val(pte) &= ~L_PTE_XN; + return pte; +} + +static inline pmd_t kvm_s2pmd_mkexec(pmd_t pmd) +{ + pmd_val(pmd) &= ~PMD_SECT_XN; + return pmd; +} + static inline void kvm_set_s2pte_readonly(pte_t *pte) { pte_val(*pte) = (pte_val(*pte) & ~L_PTE_S2_RDWR) | L_PTE_S2_RDONLY; @@ -93,6 +107,11 @@ static inline bool kvm_s2pte_readonly(pte_t *pte) return (pte_val(*pte) & L_PTE_S2_RDWR) == L_PTE_S2_RDONLY; } +static inline bool kvm_s2pte_exec(pte_t *pte) +{ + return !(pte_val(*pte) & L_PTE_XN); +} + static inline void kvm_set_s2pmd_readonly(pmd_t *pmd) { pmd_val(*pmd) = (pmd_val(*pmd) & ~L_PMD_S2_RDWR) | L_PMD_S2_RDONLY; @@ -103,6 +122,11 @@ static inline bool kvm_s2pmd_readonly(pmd_t *pmd) return (pmd_val(*pmd) & L_PMD_S2_RDWR) == L_PMD_S2_RDONLY; } +static inline bool kvm_s2pmd_exec(pmd_t *pmd) +{ + return !(pmd_val(*pmd) & PMD_SECT_XN); +} + static inline bool kvm_page_empty(void *ptr) { struct page *ptr_page = virt_to_page(ptr); @@ -126,10 +150,36 @@ static inline bool vcpu_has_cache_enabled(struct kvm_vcpu *vcpu) return (vcpu_cp15(vcpu, c1_SCTLR) & 0b101) == 0b101; } -static inline void __coherent_cache_guest_page(struct kvm_vcpu *vcpu, - kvm_pfn_t pfn, - unsigned long size) +static inline void __clean_dcache_guest_page(kvm_pfn_t pfn, unsigned long size) +{ + /* + * Clean the dcache to the Point of Coherency. + * + * We need to do this through a kernel mapping (using the + * user-space mapping has proved to be the wrong + * solution). For that, we need to kmap one page at a time, + * and iterate over the range. + */ + + VM_BUG_ON(size & ~PAGE_MASK); + + while (size) { + void *va = kmap_atomic_pfn(pfn); + + kvm_flush_dcache_to_poc(va, PAGE_SIZE); + + size -= PAGE_SIZE; + pfn++; + + kunmap_atomic(va); + } +} + +static inline void __invalidate_icache_guest_page(kvm_pfn_t pfn, + unsigned long size) { + u32 iclsz; + /* * If we are going to insert an instruction page and the icache is * either VIPT or PIPT, there is a potential problem where the host @@ -141,23 +191,40 @@ static inline void __coherent_cache_guest_page(struct kvm_vcpu *vcpu, * * VIVT caches are tagged using both the ASID and the VMID and doesn't * need any kind of flushing (DDI 0406C.b - Page B3-1392). - * - * We need to do this through a kernel mapping (using the - * user-space mapping has proved to be the wrong - * solution). For that, we need to kmap one page at a time, - * and iterate over the range. */ VM_BUG_ON(size & ~PAGE_MASK); + if (icache_is_vivt_asid_tagged()) + return; + + if (!icache_is_pipt()) { + /* any kind of VIPT cache */ + __flush_icache_all(); + return; + } + + /* + * CTR IminLine contains Log2 of the number of words in the + * cache line, so we can get the number of words as + * 2 << (IminLine - 1). To get the number of bytes, we + * multiply by 4 (the number of bytes in a 32-bit word), and + * get 4 << (IminLine). + */ + iclsz = 4 << (read_cpuid(CPUID_CACHETYPE) & 0xf); + while (size) { void *va = kmap_atomic_pfn(pfn); + void *end = va + PAGE_SIZE; + void *addr = va; - kvm_flush_dcache_to_poc(va, PAGE_SIZE); + do { + write_sysreg(addr, ICIMVAU); + addr += iclsz; + } while (addr < end); - if (icache_is_pipt()) - __cpuc_coherent_user_range((unsigned long)va, - (unsigned long)va + PAGE_SIZE); + dsb(ishst); + isb(); size -= PAGE_SIZE; pfn++; @@ -165,9 +232,11 @@ static inline void __coherent_cache_guest_page(struct kvm_vcpu *vcpu, kunmap_atomic(va); } - if (!icache_is_pipt() && !icache_is_vivt_asid_tagged()) { - /* any kind of VIPT cache */ - __flush_icache_all(); + /* Check if we need to invalidate the BTB */ + if ((read_cpuid_ext(CPUID_EXT_MMFR1) >> 28) != 4) { + write_sysreg(0, BPIALLIS); + dsb(ishst); + isb(); } } @@ -211,6 +280,11 @@ static inline bool __kvm_cpu_uses_extended_idmap(void) return false; } +static inline unsigned long __kvm_idmap_ptrs_per_pgd(void) +{ + return PTRS_PER_PGD; +} + static inline void __kvm_extend_hypmap(pgd_t *boot_hyp_pgd, pgd_t *hyp_pgd, pgd_t *merged_hyp_pgd, @@ -221,6 +295,18 @@ static inline unsigned int kvm_get_vmid_bits(void) return 8; } +static inline void *kvm_get_hyp_vector(void) +{ + return kvm_ksym_ref(__kvm_hyp_vector); +} + +static inline int kvm_map_vectors(void) +{ + return 0; +} + +#define kvm_phys_to_vttbr(addr) (addr) + #endif /* !__ASSEMBLY__ */ #endif /* __ARM_KVM_MMU_H__ */ diff --git a/arch/arm/include/asm/kvm_psci.h b/arch/arm/include/asm/kvm_psci.h deleted file mode 100644 index 6bda945d31fa..000000000000 --- a/arch/arm/include/asm/kvm_psci.h +++ /dev/null @@ -1,27 +0,0 @@ -/* - * Copyright (C) 2012 - ARM Ltd - * Author: Marc Zyngier <marc.zyngier@arm.com> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program. If not, see <http://www.gnu.org/licenses/>. - */ - -#ifndef __ARM_KVM_PSCI_H__ -#define __ARM_KVM_PSCI_H__ - -#define KVM_ARM_PSCI_0_1 1 -#define KVM_ARM_PSCI_0_2 2 - -int kvm_psci_version(struct kvm_vcpu *vcpu); -int kvm_psci_call(struct kvm_vcpu *vcpu); - -#endif /* __ARM_KVM_PSCI_H__ */ diff --git a/arch/arm/include/asm/memory.h b/arch/arm/include/asm/memory.h index 1f54e4e98c1e..496667703693 100644 --- a/arch/arm/include/asm/memory.h +++ b/arch/arm/include/asm/memory.h @@ -88,6 +88,7 @@ #else /* CONFIG_MMU */ #ifndef __ASSEMBLY__ +extern unsigned long setup_vectors_base(void); extern unsigned long vectors_base; #define VECTORS_BASE vectors_base #endif diff --git a/arch/arm/include/asm/pci.h b/arch/arm/include/asm/pci.h index 960d9dc4f380..1f0de808d111 100644 --- a/arch/arm/include/asm/pci.h +++ b/arch/arm/include/asm/pci.h @@ -10,10 +10,7 @@ extern unsigned long pcibios_min_io; extern unsigned long pcibios_min_mem; #define PCIBIOS_MIN_MEM pcibios_min_mem -static inline int pcibios_assign_all_busses(void) -{ - return pci_has_flag(PCI_REASSIGN_ALL_RSRC); -} +#define pcibios_assign_all_busses() pci_has_flag(PCI_REASSIGN_ALL_BUS) #ifdef CONFIG_PCI_DOMAINS static inline int pci_proc_domain(struct pci_bus *bus) diff --git a/arch/arm/include/asm/pgtable-3level.h b/arch/arm/include/asm/pgtable-3level.h index 1a7a17b2a1ba..2a4836087358 100644 --- a/arch/arm/include/asm/pgtable-3level.h +++ b/arch/arm/include/asm/pgtable-3level.h @@ -249,6 +249,9 @@ PMD_BIT_FUNC(mkyoung, |= PMD_SECT_AF); #define pfn_pmd(pfn,prot) (__pmd(((phys_addr_t)(pfn) << PAGE_SHIFT) | pgprot_val(prot))) #define mk_pmd(page,prot) pfn_pmd(page_to_pfn(page),prot) +/* No hardware dirty/accessed bits -- generic_pmdp_establish() fits */ +#define pmdp_establish generic_pmdp_establish + /* represent a notpresent pmd by faulting entry, this is used by pmdp_invalidate */ static inline pmd_t pmd_mknotpresent(pmd_t pmd) { diff --git a/arch/arm/include/asm/pgtable.h b/arch/arm/include/asm/pgtable.h index 150ece66ddf3..a757401129f9 100644 --- a/arch/arm/include/asm/pgtable.h +++ b/arch/arm/include/asm/pgtable.h @@ -102,8 +102,8 @@ extern pgprot_t pgprot_s2_device; #define PAGE_HYP_EXEC _MOD_PROT(pgprot_kernel, L_PTE_HYP | L_PTE_RDONLY) #define PAGE_HYP_RO _MOD_PROT(pgprot_kernel, L_PTE_HYP | L_PTE_RDONLY | L_PTE_XN) #define PAGE_HYP_DEVICE _MOD_PROT(pgprot_hyp_device, L_PTE_HYP) -#define PAGE_S2 _MOD_PROT(pgprot_s2, L_PTE_S2_RDONLY) -#define PAGE_S2_DEVICE _MOD_PROT(pgprot_s2_device, L_PTE_S2_RDONLY) +#define PAGE_S2 _MOD_PROT(pgprot_s2, L_PTE_S2_RDONLY | L_PTE_XN) +#define PAGE_S2_DEVICE _MOD_PROT(pgprot_s2_device, L_PTE_S2_RDONLY | L_PTE_XN) #define __PAGE_NONE __pgprot(_L_PTE_DEFAULT | L_PTE_RDONLY | L_PTE_XN | L_PTE_NONE) #define __PAGE_SHARED __pgprot(_L_PTE_DEFAULT | L_PTE_USER | L_PTE_XN) diff --git a/arch/arm/include/asm/processor.h b/arch/arm/include/asm/processor.h index 338cbe0a18ef..1bf65b47808a 100644 --- a/arch/arm/include/asm/processor.h +++ b/arch/arm/include/asm/processor.h @@ -45,6 +45,16 @@ struct thread_struct { struct debug_info debug; }; +/* + * Everything usercopied to/from thread_struct is statically-sized, so + * no hardened usercopy whitelist is needed. + */ +static inline void arch_thread_struct_whitelist(unsigned long *offset, + unsigned long *size) +{ + *offset = *size = 0; +} + #define INIT_THREAD { } #define start_thread(regs,pc,sp) \ diff --git a/arch/arm/include/asm/ptdump.h b/arch/arm/include/asm/ptdump.h new file mode 100644 index 000000000000..3ebf9718288d --- /dev/null +++ b/arch/arm/include/asm/ptdump.h @@ -0,0 +1,43 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* Copyright (C) 2014 ARM Ltd. */ +#ifndef __ASM_PTDUMP_H +#define __ASM_PTDUMP_H + +#ifdef CONFIG_ARM_PTDUMP_CORE + +#include <linux/mm_types.h> +#include <linux/seq_file.h> + +struct addr_marker { + unsigned long start_address; + char *name; +}; + +struct ptdump_info { + struct mm_struct *mm; + const struct addr_marker *markers; + unsigned long base_addr; +}; + +void ptdump_walk_pgd(struct seq_file *s, struct ptdump_info *info); +#ifdef CONFIG_ARM_PTDUMP_DEBUGFS +int ptdump_debugfs_register(struct ptdump_info *info, const char *name); +#else +static inline int ptdump_debugfs_register(struct ptdump_info *info, + const char *name) +{ + return 0; +} +#endif /* CONFIG_ARM_PTDUMP_DEBUGFS */ + +void ptdump_check_wx(void); + +#endif /* CONFIG_ARM_PTDUMP_CORE */ + +#ifdef CONFIG_DEBUG_WX +#define debug_checkwx() ptdump_check_wx() +#else +#define debug_checkwx() do { } while (0) +#endif + +#endif /* __ASM_PTDUMP_H */ diff --git a/arch/arm/include/asm/sections.h b/arch/arm/include/asm/sections.h index 63dfe1f10335..4ceb4f757d4d 100644 --- a/arch/arm/include/asm/sections.h +++ b/arch/arm/include/asm/sections.h @@ -6,4 +6,25 @@ extern char _exiprom[]; +extern char __idmap_text_start[]; +extern char __idmap_text_end[]; +extern char __entry_text_start[]; +extern char __entry_text_end[]; +extern char __hyp_idmap_text_start[]; +extern char __hyp_idmap_text_end[]; + +static inline bool in_entry_text(unsigned long addr) +{ + return memory_contains(__entry_text_start, __entry_text_end, + (void *)addr, 1); +} + +static inline bool in_idmap_text(unsigned long addr) +{ + void *a = (void *)addr; + return memory_contains(__idmap_text_start, __idmap_text_end, a, 1) || + memory_contains(__hyp_idmap_text_start, __hyp_idmap_text_end, + a, 1); +} + #endif /* _ASM_ARM_SECTIONS_H */ diff --git a/arch/arm/include/asm/string.h b/arch/arm/include/asm/string.h index f54a3136aac6..111a1d8a41dd 100644 --- a/arch/arm/include/asm/string.h +++ b/arch/arm/include/asm/string.h @@ -39,18 +39,4 @@ static inline void *memset64(uint64_t *p, uint64_t v, __kernel_size_t n) return __memset64(p, v, n * 8, v >> 32); } -extern void __memzero(void *ptr, __kernel_size_t n); - -#define memset(p,v,n) \ - ({ \ - void *__p = (p); size_t __n = n; \ - if ((__n) != 0) { \ - if (__builtin_constant_p((v)) && (v) == 0) \ - __memzero((__p),(__n)); \ - else \ - memset((__p),(v),(__n)); \ - } \ - (__p); \ - }) - #endif diff --git a/arch/arm/include/asm/thread_info.h b/arch/arm/include/asm/thread_info.h index 776757d1604a..e71cc35de163 100644 --- a/arch/arm/include/asm/thread_info.h +++ b/arch/arm/include/asm/thread_info.h @@ -75,9 +75,6 @@ struct thread_info { .addr_limit = KERNEL_DS, \ } -#define init_thread_info (init_thread_union.thread_info) -#define init_stack (init_thread_union.stack) - /* * how to get the current stack pointer in C */ diff --git a/arch/arm/include/asm/traps.h b/arch/arm/include/asm/traps.h index f9a6c5fc3fd1..a00288d75ee6 100644 --- a/arch/arm/include/asm/traps.h +++ b/arch/arm/include/asm/traps.h @@ -28,18 +28,6 @@ static inline int __in_irqentry_text(unsigned long ptr) ptr < (unsigned long)&__irqentry_text_end; } -static inline int in_exception_text(unsigned long ptr) -{ - extern char __exception_text_start[]; - extern char __exception_text_end[]; - int in; - - in = ptr >= (unsigned long)&__exception_text_start && - ptr < (unsigned long)&__exception_text_end; - - return in ? : __in_irqentry_text(ptr); -} - extern void __init early_trap_init(void *); extern void dump_backtrace_entry(unsigned long where, unsigned long from, unsigned long frame); extern void ptrace_break(struct task_struct *tsk, struct pt_regs *regs); diff --git a/arch/arm/include/asm/unified.h b/arch/arm/include/asm/unified.h index a91ae499614c..2c3b952be63e 100644 --- a/arch/arm/include/asm/unified.h +++ b/arch/arm/include/asm/unified.h @@ -20,8 +20,10 @@ #ifndef __ASM_UNIFIED_H #define __ASM_UNIFIED_H -#if defined(__ASSEMBLY__) && defined(CONFIG_ARM_ASM_UNIFIED) +#if defined(__ASSEMBLY__) .syntax unified +#else +__asm__(".syntax unified"); #endif #ifdef CONFIG_CPU_V7M @@ -64,77 +66,4 @@ #endif /* CONFIG_THUMB2_KERNEL */ -#ifndef CONFIG_ARM_ASM_UNIFIED - -/* - * If the unified assembly syntax isn't used (in ARM mode), these - * macros expand to an empty string - */ -#ifdef __ASSEMBLY__ - .macro it, cond - .endm - .macro itt, cond - .endm - .macro ite, cond - .endm - .macro ittt, cond - .endm - .macro itte, cond - .endm - .macro itet, cond - .endm - .macro itee, cond - .endm - .macro itttt, cond - .endm - .macro ittte, cond - .endm - .macro ittet, cond - .endm - .macro ittee, cond - .endm - .macro itett, cond - .endm - .macro itete, cond - .endm - .macro iteet, cond - .endm - .macro iteee, cond - .endm -#else /* !__ASSEMBLY__ */ -__asm__( -" .macro it, cond\n" -" .endm\n" -" .macro itt, cond\n" -" .endm\n" -" .macro ite, cond\n" -" .endm\n" -" .macro ittt, cond\n" -" .endm\n" -" .macro itte, cond\n" -" .endm\n" -" .macro itet, cond\n" -" .endm\n" -" .macro itee, cond\n" -" .endm\n" -" .macro itttt, cond\n" -" .endm\n" -" .macro ittte, cond\n" -" .endm\n" -" .macro ittet, cond\n" -" .endm\n" -" .macro ittee, cond\n" -" .endm\n" -" .macro itett, cond\n" -" .endm\n" -" .macro itete, cond\n" -" .endm\n" -" .macro iteet, cond\n" -" .endm\n" -" .macro iteee, cond\n" -" .endm\n"); -#endif /* __ASSEMBLY__ */ - -#endif /* CONFIG_ARM_ASM_UNIFIED */ - #endif /* !__ASM_UNIFIED_H */ diff --git a/arch/arm/include/uapi/asm/siginfo.h b/arch/arm/include/uapi/asm/siginfo.h new file mode 100644 index 000000000000..d0513880be21 --- /dev/null +++ b/arch/arm/include/uapi/asm/siginfo.h @@ -0,0 +1,13 @@ +#ifndef __ASM_SIGINFO_H +#define __ASM_SIGINFO_H + +#include <asm-generic/siginfo.h> + +/* + * SIGFPE si_codes + */ +#ifdef __KERNEL__ +#define FPE_FIXME 0 /* Broken dup of SI_USER */ +#endif /* __KERNEL__ */ + +#endif |