diff options
Diffstat (limited to 'arch/csky/include')
29 files changed, 222 insertions, 324 deletions
diff --git a/arch/csky/include/asm/Kbuild b/arch/csky/include/asm/Kbuild index 103207a58f97..3a5c7f6e5aac 100644 --- a/arch/csky/include/asm/Kbuild +++ b/arch/csky/include/asm/Kbuild @@ -1,12 +1,14 @@ # SPDX-License-Identifier: GPL-2.0 +syscall-y := syscall_table_32.h + generic-y += asm-offsets.h generic-y += extable.h -generic-y += gpio.h generic-y += kvm_para.h -generic-y += spinlock.h -generic-y += spinlock_types.h +generic-y += mcs_spinlock.h generic-y += qrwlock.h generic-y += qrwlock_types.h +generic-y += qspinlock.h generic-y += parport.h generic-y += user.h generic-y += vmlinux.lds.h +generic-y += text-patching.h diff --git a/arch/csky/include/asm/atomic.h b/arch/csky/include/asm/atomic.h index 60406ef9c2bb..4dab44f6143a 100644 --- a/arch/csky/include/asm/atomic.h +++ b/arch/csky/include/asm/atomic.h @@ -195,41 +195,6 @@ arch_atomic_dec_if_positive(atomic_t *v) } #define arch_atomic_dec_if_positive arch_atomic_dec_if_positive -#define ATOMIC_OP() \ -static __always_inline \ -int arch_atomic_xchg_relaxed(atomic_t *v, int n) \ -{ \ - return __xchg_relaxed(n, &(v->counter), 4); \ -} \ -static __always_inline \ -int arch_atomic_cmpxchg_relaxed(atomic_t *v, int o, int n) \ -{ \ - return __cmpxchg_relaxed(&(v->counter), o, n, 4); \ -} \ -static __always_inline \ -int arch_atomic_cmpxchg_acquire(atomic_t *v, int o, int n) \ -{ \ - return __cmpxchg_acquire(&(v->counter), o, n, 4); \ -} \ -static __always_inline \ -int arch_atomic_cmpxchg(atomic_t *v, int o, int n) \ -{ \ - return __cmpxchg(&(v->counter), o, n, 4); \ -} - -#define ATOMIC_OPS() \ - ATOMIC_OP() - -ATOMIC_OPS() - -#define arch_atomic_xchg_relaxed arch_atomic_xchg_relaxed -#define arch_atomic_cmpxchg_relaxed arch_atomic_cmpxchg_relaxed -#define arch_atomic_cmpxchg_acquire arch_atomic_cmpxchg_acquire -#define arch_atomic_cmpxchg arch_atomic_cmpxchg - -#undef ATOMIC_OPS -#undef ATOMIC_OP - #else #include <asm-generic/atomic.h> #endif diff --git a/arch/csky/include/asm/cachetype.h b/arch/csky/include/asm/cachetype.h new file mode 100644 index 000000000000..98cbe3af662f --- /dev/null +++ b/arch/csky/include/asm/cachetype.h @@ -0,0 +1,9 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef __ASM_CSKY_CACHETYPE_H +#define __ASM_CSKY_CACHETYPE_H + +#include <linux/types.h> + +#define cpu_dcache_is_aliasing() true + +#endif diff --git a/arch/csky/include/asm/cmpxchg.h b/arch/csky/include/asm/cmpxchg.h index 5b8faccd65e4..db6dda47184e 100644 --- a/arch/csky/include/asm/cmpxchg.h +++ b/arch/csky/include/asm/cmpxchg.h @@ -4,9 +4,9 @@ #define __ASM_CSKY_CMPXCHG_H #ifdef CONFIG_SMP +#include <linux/bug.h> #include <asm/barrier.h> - -extern void __bad_xchg(void); +#include <linux/cmpxchg-emu.h> #define __xchg_relaxed(new, ptr, size) \ ({ \ @@ -15,6 +15,26 @@ extern void __bad_xchg(void); __typeof__(*(ptr)) __ret; \ unsigned long tmp; \ switch (size) { \ + case 2: { \ + u32 ret; \ + u32 shif = ((ulong)__ptr & 2) ? 16 : 0; \ + u32 mask = 0xffff << shif; \ + __ptr = (__typeof__(ptr))((ulong)__ptr & ~2); \ + __asm__ __volatile__ ( \ + "1: ldex.w %0, (%4)\n" \ + " and %1, %0, %2\n" \ + " or %1, %1, %3\n" \ + " stex.w %1, (%4)\n" \ + " bez %1, 1b\n" \ + : "=&r" (ret), "=&r" (tmp) \ + : "r" (~mask), \ + "r" ((u32)__new << shif), \ + "r" (__ptr) \ + : "memory"); \ + __ret = (__typeof__(*(ptr))) \ + ((ret & mask) >> shif); \ + break; \ + } \ case 4: \ asm volatile ( \ "1: ldex.w %0, (%3) \n" \ @@ -26,7 +46,7 @@ extern void __bad_xchg(void); :); \ break; \ default: \ - __bad_xchg(); \ + BUILD_BUG(); \ } \ __ret; \ }) @@ -42,6 +62,9 @@ extern void __bad_xchg(void); __typeof__(old) __old = (old); \ __typeof__(*(ptr)) __ret; \ switch (size) { \ + case 1: \ + __ret = (__typeof__(*(ptr)))cmpxchg_emu_u8((volatile u8 *)__ptr, (uintptr_t)__old, (uintptr_t)__new); \ + break; \ case 4: \ asm volatile ( \ "1: ldex.w %0, (%3) \n" \ @@ -56,7 +79,7 @@ extern void __bad_xchg(void); :); \ break; \ default: \ - __bad_xchg(); \ + BUILD_BUG(); \ } \ __ret; \ }) @@ -72,6 +95,9 @@ extern void __bad_xchg(void); __typeof__(old) __old = (old); \ __typeof__(*(ptr)) __ret; \ switch (size) { \ + case 1: \ + __ret = (__typeof__(*(ptr)))cmpxchg_emu_u8((volatile u8 *)__ptr, (uintptr_t)__old, (uintptr_t)__new); \ + break; \ case 4: \ asm volatile ( \ "1: ldex.w %0, (%3) \n" \ @@ -87,7 +113,7 @@ extern void __bad_xchg(void); :); \ break; \ default: \ - __bad_xchg(); \ + BUILD_BUG(); \ } \ __ret; \ }) @@ -103,6 +129,9 @@ extern void __bad_xchg(void); __typeof__(old) __old = (old); \ __typeof__(*(ptr)) __ret; \ switch (size) { \ + case 1: \ + __ret = (__typeof__(*(ptr)))cmpxchg_emu_u8((volatile u8 *)__ptr, (uintptr_t)__old, (uintptr_t)__new); \ + break; \ case 4: \ asm volatile ( \ RELEASE_FENCE \ @@ -119,7 +148,7 @@ extern void __bad_xchg(void); :); \ break; \ default: \ - __bad_xchg(); \ + BUILD_BUG(); \ } \ __ret; \ }) diff --git a/arch/csky/include/asm/ftrace.h b/arch/csky/include/asm/ftrace.h index 9b86341731b6..00f9f7647e3f 100644 --- a/arch/csky/include/asm/ftrace.h +++ b/arch/csky/include/asm/ftrace.h @@ -7,8 +7,6 @@ #define HAVE_FUNCTION_GRAPH_FP_TEST -#define HAVE_FUNCTION_GRAPH_RET_ADDR_PTR - #define ARCH_SUPPORTS_FTRACE_OPS 1 #define MCOUNT_ADDR ((unsigned long)_mcount) @@ -26,5 +24,9 @@ static inline unsigned long ftrace_call_adjust(unsigned long addr) struct dyn_arch_ftrace { }; + +void prepare_ftrace_return(unsigned long *parent, unsigned long self_addr, + unsigned long frame_pointer); + #endif /* !__ASSEMBLY__ */ #endif /* __ASM_CSKY_FTRACE_H */ diff --git a/arch/csky/include/asm/io.h b/arch/csky/include/asm/io.h index 4725bb977b0f..536d3bf32ff1 100644 --- a/arch/csky/include/asm/io.h +++ b/arch/csky/include/asm/io.h @@ -32,22 +32,11 @@ #endif /* - * String version of I/O memory access operations. - */ -extern void __memcpy_fromio(void *, const volatile void __iomem *, size_t); -extern void __memcpy_toio(volatile void __iomem *, const void *, size_t); -extern void __memset_io(volatile void __iomem *, int, size_t); - -#define memset_io(c,v,l) __memset_io((c),(v),(l)) -#define memcpy_fromio(a,c,l) __memcpy_fromio((a),(c),(l)) -#define memcpy_toio(c,a,l) __memcpy_toio((c),(a),(l)) - -/* * I/O memory mapping functions. */ #define ioremap_wc(addr, size) \ ioremap_prot((addr), (size), \ - (_PAGE_IOREMAP & ~_CACHE_MASK) | _CACHE_UNCACHED) + __pgprot((_PAGE_IOREMAP & ~_CACHE_MASK) | _CACHE_UNCACHED)) #include <asm-generic/io.h> diff --git a/arch/csky/include/asm/irq_work.h b/arch/csky/include/asm/irq_work.h index 33aaf39d6f94..d39fcc1f5395 100644 --- a/arch/csky/include/asm/irq_work.h +++ b/arch/csky/include/asm/irq_work.h @@ -7,5 +7,5 @@ static inline bool arch_irq_work_has_interrupt(void) { return true; } -extern void arch_irq_work_raise(void); + #endif /* __ASM_CSKY_IRQ_WORK_H */ diff --git a/arch/csky/include/asm/jump_label.h b/arch/csky/include/asm/jump_label.h new file mode 100644 index 000000000000..ef2e37a10a0f --- /dev/null +++ b/arch/csky/include/asm/jump_label.h @@ -0,0 +1,52 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ + +#ifndef __ASM_CSKY_JUMP_LABEL_H +#define __ASM_CSKY_JUMP_LABEL_H + +#ifndef __ASSEMBLY__ + +#include <linux/types.h> + +#define JUMP_LABEL_NOP_SIZE 4 + +static __always_inline bool arch_static_branch(struct static_key *key, + bool branch) +{ + asm goto( + "1: nop32 \n" + " .pushsection __jump_table, \"aw\" \n" + " .align 2 \n" + " .long 1b - ., %l[label] - . \n" + " .long %0 - . \n" + " .popsection \n" + : : "i"(&((char *)key)[branch]) : : label); + + return false; +label: + return true; +} + +static __always_inline bool arch_static_branch_jump(struct static_key *key, + bool branch) +{ + asm goto( + "1: bsr32 %l[label] \n" + " .pushsection __jump_table, \"aw\" \n" + " .align 2 \n" + " .long 1b - ., %l[label] - . \n" + " .long %0 - . \n" + " .popsection \n" + : : "i"(&((char *)key)[branch]) : : label); + + return false; +label: + return true; +} + +enum jump_label_type; +void arch_jump_label_transform_static(struct jump_entry *entry, + enum jump_label_type type); +#define arch_jump_label_transform_static arch_jump_label_transform_static + +#endif /* __ASSEMBLY__ */ +#endif /* __ASM_CSKY_JUMP_LABEL_H */ diff --git a/arch/csky/include/asm/page.h b/arch/csky/include/asm/page.h index ed7451478b1b..4911d0892b71 100644 --- a/arch/csky/include/asm/page.h +++ b/arch/csky/include/asm/page.h @@ -7,12 +7,8 @@ #include <asm/cache.h> #include <linux/const.h> -/* - * PAGE_SHIFT determines the page size: 4KB - */ -#define PAGE_SHIFT 12 -#define PAGE_SIZE (_AC(1, UL) << PAGE_SHIFT) -#define PAGE_MASK (~(PAGE_SIZE - 1)) +#include <vdso/page.h> + #define THREAD_SIZE (PAGE_SIZE * 2) #define THREAD_MASK (~(THREAD_SIZE - 1)) #define THREAD_SHIFT (PAGE_SHIFT + 1) @@ -34,12 +30,8 @@ #include <linux/pfn.h> -#define virt_to_pfn(kaddr) (__pa(kaddr) >> PAGE_SHIFT) -#define pfn_to_virt(pfn) __va((pfn) << PAGE_SHIFT) - #define virt_addr_valid(kaddr) ((void *)(kaddr) >= (void *)PAGE_OFFSET && \ (void *)(kaddr) < high_memory) -#define pfn_valid(pfn) ((pfn) >= ARCH_PFN_OFFSET && ((pfn) - ARCH_PFN_OFFSET) < max_mapnr) extern void *memset(void *dest, int c, size_t l); extern void *memcpy(void *to, const void *from, size_t l); @@ -47,9 +39,6 @@ extern void *memcpy(void *to, const void *from, size_t l); #define clear_page(page) memset((page), 0, PAGE_SIZE) #define copy_page(to, from) memcpy((to), (from), PAGE_SIZE) -#define page_to_phys(page) (page_to_pfn(page) << PAGE_SHIFT) -#define phys_to_page(paddr) (pfn_to_page(PFN_DOWN(paddr))) - struct page; #include <abi/page.h> @@ -81,6 +70,11 @@ extern unsigned long va_pa_offset; #define __pa_symbol(x) __pa(RELOC_HIDE((unsigned long)(x), 0)) +static inline unsigned long virt_to_pfn(const void *kaddr) +{ + return __pa(kaddr) >> PAGE_SHIFT; +} + #define MAP_NR(x) PFN_DOWN((unsigned long)(x) - PAGE_OFFSET - \ PHYS_OFFSET_OFFSET) #define virt_to_page(x) (mem_map + MAP_NR(x)) diff --git a/arch/csky/include/asm/pci.h b/arch/csky/include/asm/pci.h index ebc765b1f78b..42724c630d30 100644 --- a/arch/csky/include/asm/pci.h +++ b/arch/csky/include/asm/pci.h @@ -9,26 +9,7 @@ #include <asm/io.h> -#define PCIBIOS_MIN_IO 0 -#define PCIBIOS_MIN_MEM 0 - -/* C-SKY shim does not initialize PCI bus */ -#define pcibios_assign_all_busses() 1 - -extern int isa_dma_bridge_buggy; - -#ifdef CONFIG_PCI -static inline int pci_get_legacy_ide_irq(struct pci_dev *dev, int channel) -{ - /* no legacy IRQ on csky */ - return -ENODEV; -} - -static inline int pci_proc_domain(struct pci_bus *bus) -{ - /* always show the domain in /proc */ - return 1; -} -#endif /* CONFIG_PCI */ +/* Generic PCI */ +#include <asm-generic/pci.h> #endif /* __ASM_CSKY_PCI_H */ diff --git a/arch/csky/include/asm/pgalloc.h b/arch/csky/include/asm/pgalloc.h index bbbd0698b397..9ed2b15ffd94 100644 --- a/arch/csky/include/asm/pgalloc.h +++ b/arch/csky/include/asm/pgalloc.h @@ -29,7 +29,7 @@ static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm) pte_t *pte; unsigned long i; - pte = (pte_t *) __get_free_page(GFP_KERNEL); + pte = __pte_alloc_one_kernel(mm); if (!pte) return NULL; @@ -44,7 +44,7 @@ static inline pgd_t *pgd_alloc(struct mm_struct *mm) pgd_t *ret; pgd_t *init; - ret = (pgd_t *) __get_free_pages(GFP_KERNEL, PGD_ORDER); + ret = __pgd_alloc(mm, 0); if (ret) { init = pgd_offset(&init_mm, 0UL); pgd_init((unsigned long *)ret); @@ -61,11 +61,8 @@ static inline pgd_t *pgd_alloc(struct mm_struct *mm) return ret; } -#define __pte_free_tlb(tlb, pte, address) \ -do { \ - pgtable_pte_page_dtor(pte); \ - tlb_remove_page(tlb, pte); \ -} while (0) +#define __pte_free_tlb(tlb, pte, address) \ + tlb_remove_ptdesc((tlb), page_ptdesc(pte)) extern void pagetable_init(void); extern void mmu_init(unsigned long min_pfn, unsigned long max_pfn); diff --git a/arch/csky/include/asm/pgtable.h b/arch/csky/include/asm/pgtable.h index bbe245117777..5a394be09c35 100644 --- a/arch/csky/include/asm/pgtable.h +++ b/arch/csky/include/asm/pgtable.h @@ -18,18 +18,17 @@ /* * C-SKY is two-level paging structure: */ -#define PGD_ORDER 0 -#define PTE_ORDER 0 -#define PTRS_PER_PGD ((PAGE_SIZE << PGD_ORDER) / sizeof(pgd_t)) +#define PTRS_PER_PGD (PAGE_SIZE / sizeof(pgd_t)) #define PTRS_PER_PMD 1 -#define PTRS_PER_PTE ((PAGE_SIZE << PTE_ORDER) / sizeof(pte_t)) +#define PTRS_PER_PTE (PAGE_SIZE / sizeof(pte_t)) #define pte_ERROR(e) \ pr_err("%s:%d: bad pte %08lx.\n", __FILE__, __LINE__, (e).pte_low) #define pgd_ERROR(e) \ pr_err("%s:%d: bad pgd %08lx.\n", __FILE__, __LINE__, pgd_val(e)) +#define PFN_PTE_SHIFT PAGE_SHIFT #define pmd_pfn(pmd) (pmd_phys(pmd) >> PAGE_SHIFT) #define pmd_page(pmd) (pfn_to_page(pmd_phys(pmd) >> PAGE_SHIFT)) #define pte_clear(mm, addr, ptep) set_pte((ptep), \ @@ -77,24 +76,6 @@ #define MAX_SWAPFILES_CHECK() \ BUILD_BUG_ON(MAX_SWAPFILES_SHIFT != 5) -#define __P000 PAGE_NONE -#define __P001 PAGE_READ -#define __P010 PAGE_READ -#define __P011 PAGE_READ -#define __P100 PAGE_READ -#define __P101 PAGE_READ -#define __P110 PAGE_READ -#define __P111 PAGE_READ - -#define __S000 PAGE_NONE -#define __S001 PAGE_READ -#define __S010 PAGE_WRITE -#define __S011 PAGE_WRITE -#define __S100 PAGE_READ -#define __S101 PAGE_READ -#define __S110 PAGE_WRITE -#define __S111 PAGE_WRITE - extern unsigned long empty_zero_page[PAGE_SIZE / sizeof(unsigned long)]; #define ZERO_PAGE(vaddr) (virt_to_page(empty_zero_page)) @@ -110,7 +91,6 @@ static inline void set_pte(pte_t *p, pte_t pte) /* prevent out of order excution */ smp_mb(); } -#define set_pte_at(mm, addr, ptep, pteval) set_pte(ptep, pteval) static inline pte_t *pmd_page_vaddr(pmd_t pmd) { @@ -196,7 +176,7 @@ static inline pte_t pte_mkold(pte_t pte) return pte; } -static inline pte_t pte_mkwrite(pte_t pte) +static inline pte_t pte_mkwrite_novma(pte_t pte) { pte_val(pte) |= _PAGE_WRITE; if (pte_val(pte) & _PAGE_MODIFIED) @@ -220,6 +200,23 @@ static inline pte_t pte_mkyoung(pte_t pte) return pte; } +static inline bool pte_swp_exclusive(pte_t pte) +{ + return pte_val(pte) & _PAGE_SWP_EXCLUSIVE; +} + +static inline pte_t pte_swp_mkexclusive(pte_t pte) +{ + pte_val(pte) |= _PAGE_SWP_EXCLUSIVE; + return pte; +} + +static inline pte_t pte_swp_clear_exclusive(pte_t pte) +{ + pte_val(pte) &= ~_PAGE_SWP_EXCLUSIVE; + return pte; +} + #define __HAVE_PHYS_MEM_ACCESS_PROT struct file; extern pgprot_t phys_mem_access_prot(struct file *file, unsigned long pfn, @@ -252,11 +249,6 @@ static inline pgprot_t pgprot_writecombine(pgprot_t _prot) return __pgprot(prot); } -/* - * Conversion functions: convert a page and protection to a page entry, - * and a page entry and page directory to the page they refer to. - */ -#define mk_pte(page, pgprot) pfn_pte(page_to_pfn(page), (pgprot)) static inline pte_t pte_modify(pte_t pte, pgprot_t newprot) { return __pte((pte_val(pte) & _PAGE_CHG_MASK) | @@ -266,11 +258,10 @@ static inline pte_t pte_modify(pte_t pte, pgprot_t newprot) extern pgd_t swapper_pg_dir[PTRS_PER_PGD]; extern void paging_init(void); -void update_mmu_cache(struct vm_area_struct *vma, unsigned long address, - pte_t *pte); - -/* Needs to be defined here and not in linux/mm.h, as it is arch dependent */ -#define kern_addr_valid(addr) (1) +void update_mmu_cache_range(struct vm_fault *vmf, struct vm_area_struct *vma, + unsigned long address, pte_t *pte, unsigned int nr); +#define update_mmu_cache(vma, addr, ptep) \ + update_mmu_cache_range(NULL, vma, addr, ptep, 1) #define io_remap_pfn_range(vma, vaddr, pfn, size, prot) \ remap_pfn_range(vma, vaddr, pfn, size, prot) diff --git a/arch/csky/include/asm/processor.h b/arch/csky/include/asm/processor.h index 9638206bc44f..e487a46d1c37 100644 --- a/arch/csky/include/asm/processor.h +++ b/arch/csky/include/asm/processor.h @@ -69,16 +69,9 @@ do { \ /* Forward declaration, a strange C thing */ struct task_struct; -/* Free all resources held by a thread. */ -static inline void release_thread(struct task_struct *dead_task) -{ -} - /* Prepare to copy thread state - unlazy all lazy status */ #define prepare_to_copy(tsk) do { } while (0) -extern int kernel_thread(int (*fn)(void *), void *arg, unsigned long flags); - unsigned long __get_wchan(struct task_struct *p); #define KSTK_EIP(tsk) (task_pt_regs(tsk)->pc) @@ -89,4 +82,6 @@ unsigned long __get_wchan(struct task_struct *p); #define cpu_relax() barrier() +register unsigned long current_stack_pointer __asm__("sp"); + #endif /* __ASM_CSKY_PROCESSOR_H */ diff --git a/arch/csky/include/asm/ptrace.h b/arch/csky/include/asm/ptrace.h index 4202aab6df42..0634b7895d81 100644 --- a/arch/csky/include/asm/ptrace.h +++ b/arch/csky/include/asm/ptrace.h @@ -96,5 +96,7 @@ static inline unsigned long regs_get_register(struct pt_regs *regs, return *(unsigned long *)((unsigned long)regs + offset); } +asmlinkage int syscall_trace_enter(struct pt_regs *regs); +asmlinkage void syscall_trace_exit(struct pt_regs *regs); #endif /* __ASSEMBLY__ */ #endif /* __ASM_CSKY_PTRACE_H */ diff --git a/arch/csky/include/asm/sections.h b/arch/csky/include/asm/sections.h new file mode 100644 index 000000000000..83e82b7c0f6c --- /dev/null +++ b/arch/csky/include/asm/sections.h @@ -0,0 +1,12 @@ +/* SPDX-License-Identifier: GPL-2.0 */ + +#ifndef __ASM_SECTIONS_H +#define __ASM_SECTIONS_H + +#include <asm-generic/sections.h> + +extern char _start[]; + +asmlinkage void csky_start(unsigned int unused, void *dtb_start); + +#endif /* __ASM_SECTIONS_H */ diff --git a/arch/csky/include/asm/smp.h b/arch/csky/include/asm/smp.h index 668b79ce29ea..d3db334f3196 100644 --- a/arch/csky/include/asm/smp.h +++ b/arch/csky/include/asm/smp.h @@ -23,7 +23,7 @@ void __init set_send_ipi(void (*func)(const struct cpumask *mask), int irq); int __cpu_disable(void); -void __cpu_die(unsigned int cpu); +static inline void __cpu_die(unsigned int cpu) { } #endif /* CONFIG_SMP */ diff --git a/arch/csky/include/asm/spinlock.h b/arch/csky/include/asm/spinlock.h new file mode 100644 index 000000000000..83a2005341f5 --- /dev/null +++ b/arch/csky/include/asm/spinlock.h @@ -0,0 +1,12 @@ +/* SPDX-License-Identifier: GPL-2.0 */ + +#ifndef __ASM_CSKY_SPINLOCK_H +#define __ASM_CSKY_SPINLOCK_H + +#include <asm/qspinlock.h> +#include <asm/qrwlock.h> + +/* See include/linux/spinlock.h */ +#define smp_mb__after_spinlock() smp_mb() + +#endif /* __ASM_CSKY_SPINLOCK_H */ diff --git a/arch/csky/include/asm/spinlock_types.h b/arch/csky/include/asm/spinlock_types.h new file mode 100644 index 000000000000..75bdf3af80ba --- /dev/null +++ b/arch/csky/include/asm/spinlock_types.h @@ -0,0 +1,9 @@ +/* SPDX-License-Identifier: GPL-2.0 */ + +#ifndef __ASM_CSKY_SPINLOCK_TYPES_H +#define __ASM_CSKY_SPINLOCK_TYPES_H + +#include <asm-generic/qspinlock_types.h> +#include <asm-generic/qrwlock_types.h> + +#endif /* __ASM_CSKY_SPINLOCK_TYPES_H */ diff --git a/arch/csky/include/asm/stackprotector.h b/arch/csky/include/asm/stackprotector.h index d7cd4e51edd9..d23747447166 100644 --- a/arch/csky/include/asm/stackprotector.h +++ b/arch/csky/include/asm/stackprotector.h @@ -2,9 +2,6 @@ #ifndef _ASM_STACKPROTECTOR_H #define _ASM_STACKPROTECTOR_H 1 -#include <linux/random.h> -#include <linux/version.h> - extern unsigned long __stack_chk_guard; /* @@ -15,12 +12,7 @@ extern unsigned long __stack_chk_guard; */ static __always_inline void boot_init_stack_canary(void) { - unsigned long canary; - - /* Try to get a semi random initial value. */ - get_random_bytes(&canary, sizeof(canary)); - canary ^= LINUX_VERSION_CODE; - canary &= CANARY_MASK; + unsigned long canary = get_random_canary(); current->stack_canary = canary; __stack_chk_guard = current->stack_canary; diff --git a/arch/csky/include/asm/syscall.h b/arch/csky/include/asm/syscall.h index 0de5734950bf..717f44b4d26f 100644 --- a/arch/csky/include/asm/syscall.h +++ b/arch/csky/include/asm/syscall.h @@ -59,6 +59,19 @@ syscall_get_arguments(struct task_struct *task, struct pt_regs *regs, memcpy(args, ®s->a1, 5 * sizeof(args[0])); } +static inline void +syscall_set_arguments(struct task_struct *task, struct pt_regs *regs, + const unsigned long *args) +{ + memcpy(®s->a0, args, 6 * sizeof(regs->a0)); + /* + * Also copy the first argument into orig_a0 + * so that syscall_get_arguments() would return it + * instead of the previous value. + */ + regs->orig_a0 = regs->a0; +} + static inline int syscall_get_arch(struct task_struct *task) { diff --git a/arch/csky/include/asm/traps.h b/arch/csky/include/asm/traps.h index 421a4195e2fe..6bbbbe43165f 100644 --- a/arch/csky/include/asm/traps.h +++ b/arch/csky/include/asm/traps.h @@ -3,6 +3,8 @@ #ifndef __ASM_CSKY_TRAPS_H #define __ASM_CSKY_TRAPS_H +#include <linux/linkage.h> + #define VEC_RESET 0 #define VEC_ALIGN 1 #define VEC_ACCESS 2 @@ -40,4 +42,19 @@ do { \ void csky_alignment(struct pt_regs *regs); +asmlinkage void do_trap_unknown(struct pt_regs *regs); +asmlinkage void do_trap_zdiv(struct pt_regs *regs); +asmlinkage void do_trap_buserr(struct pt_regs *regs); +asmlinkage void do_trap_misaligned(struct pt_regs *regs); +asmlinkage void do_trap_bkpt(struct pt_regs *regs); +asmlinkage void do_trap_illinsn(struct pt_regs *regs); +asmlinkage void do_trap_fpe(struct pt_regs *regs); +asmlinkage void do_trap_priv(struct pt_regs *regs); +asmlinkage void trap_c(struct pt_regs *regs); + +asmlinkage void do_notify_resume(struct pt_regs *regs, + unsigned long thread_info_flags); + +asmlinkage void do_page_fault(struct pt_regs *regs); + #endif /* __ASM_CSKY_TRAPS_H */ diff --git a/arch/csky/include/asm/unistd.h b/arch/csky/include/asm/unistd.h index 9cf97de9a26d..2c2c24de95d8 100644 --- a/arch/csky/include/asm/unistd.h +++ b/arch/csky/include/asm/unistd.h @@ -2,4 +2,7 @@ #include <uapi/asm/unistd.h> +#define __ARCH_WANT_STAT64 +#define __ARCH_WANT_SYS_CLONE + #define NR_syscalls (__NR_syscalls) diff --git a/arch/csky/include/asm/vdso.h b/arch/csky/include/asm/vdso.h index bdce581b5fcb..181a15edafe8 100644 --- a/arch/csky/include/asm/vdso.h +++ b/arch/csky/include/asm/vdso.h @@ -5,11 +5,6 @@ #include <linux/types.h> -#ifndef GENERIC_TIME_VSYSCALL -struct vdso_data { -}; -#endif - /* * The VDSO symbols are mapped into Linux so we can just use regular symbol * addressing to get their offsets in userspace. The symbols are mapped at an diff --git a/arch/csky/include/asm/vdso/clocksource.h b/arch/csky/include/asm/vdso/clocksource.h deleted file mode 100644 index dfca7b4724b7..000000000000 --- a/arch/csky/include/asm/vdso/clocksource.h +++ /dev/null @@ -1,9 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 */ - -#ifndef __ASM_VDSO_CSKY_CLOCKSOURCE_H -#define __ASM_VDSO_CSKY_CLOCKSOURCE_H - -#define VDSO_ARCH_CLOCKMODES \ - VDSO_CLOCKMODE_ARCHTIMER - -#endif /* __ASM_VDSO_CSKY_CLOCKSOURCE_H */ diff --git a/arch/csky/include/asm/vdso/gettimeofday.h b/arch/csky/include/asm/vdso/gettimeofday.h deleted file mode 100644 index 6c4f1446944f..000000000000 --- a/arch/csky/include/asm/vdso/gettimeofday.h +++ /dev/null @@ -1,114 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 */ - -#ifndef __ASM_VDSO_CSKY_GETTIMEOFDAY_H -#define __ASM_VDSO_CSKY_GETTIMEOFDAY_H - -#ifndef __ASSEMBLY__ - -#include <asm/barrier.h> -#include <asm/unistd.h> -#include <abi/regdef.h> -#include <uapi/linux/time.h> - -#define VDSO_HAS_CLOCK_GETRES 1 - -static __always_inline -int gettimeofday_fallback(struct __kernel_old_timeval *_tv, - struct timezone *_tz) -{ - register struct __kernel_old_timeval *tv asm("a0") = _tv; - register struct timezone *tz asm("a1") = _tz; - register long ret asm("a0"); - register long nr asm(syscallid) = __NR_gettimeofday; - - asm volatile ("trap 0\n" - : "=r" (ret) - : "r"(tv), "r"(tz), "r"(nr) - : "memory"); - - return ret; -} - -static __always_inline -long clock_gettime_fallback(clockid_t _clkid, struct __kernel_timespec *_ts) -{ - register clockid_t clkid asm("a0") = _clkid; - register struct __kernel_timespec *ts asm("a1") = _ts; - register long ret asm("a0"); - register long nr asm(syscallid) = __NR_clock_gettime64; - - asm volatile ("trap 0\n" - : "=r" (ret) - : "r"(clkid), "r"(ts), "r"(nr) - : "memory"); - - return ret; -} - -static __always_inline -long clock_gettime32_fallback(clockid_t _clkid, struct old_timespec32 *_ts) -{ - register clockid_t clkid asm("a0") = _clkid; - register struct old_timespec32 *ts asm("a1") = _ts; - register long ret asm("a0"); - register long nr asm(syscallid) = __NR_clock_gettime; - - asm volatile ("trap 0\n" - : "=r" (ret) - : "r"(clkid), "r"(ts), "r"(nr) - : "memory"); - - return ret; -} - -static __always_inline -int clock_getres_fallback(clockid_t _clkid, struct __kernel_timespec *_ts) -{ - register clockid_t clkid asm("a0") = _clkid; - register struct __kernel_timespec *ts asm("a1") = _ts; - register long ret asm("a0"); - register long nr asm(syscallid) = __NR_clock_getres_time64; - - asm volatile ("trap 0\n" - : "=r" (ret) - : "r"(clkid), "r"(ts), "r"(nr) - : "memory"); - - return ret; -} - -static __always_inline -int clock_getres32_fallback(clockid_t _clkid, struct old_timespec32 *_ts) -{ - register clockid_t clkid asm("a0") = _clkid; - register struct old_timespec32 *ts asm("a1") = _ts; - register long ret asm("a0"); - register long nr asm(syscallid) = __NR_clock_getres; - - asm volatile ("trap 0\n" - : "=r" (ret) - : "r"(clkid), "r"(ts), "r"(nr) - : "memory"); - - return ret; -} - -uint64_t csky_pmu_read_cc(void); -static __always_inline u64 __arch_get_hw_counter(s32 clock_mode, - const struct vdso_data *vd) -{ -#ifdef CONFIG_CSKY_PMU_V1 - return csky_pmu_read_cc(); -#else - return 0; -#endif -} - -static __always_inline const struct vdso_data *__arch_get_vdso_data(void) -{ - return _vdso_data; -} - -#endif /* !__ASSEMBLY__ */ - -#endif /* __ASM_VDSO_CSKY_GETTIMEOFDAY_H */ diff --git a/arch/csky/include/asm/vdso/processor.h b/arch/csky/include/asm/vdso/processor.h deleted file mode 100644 index 39a6b561d0cc..000000000000 --- a/arch/csky/include/asm/vdso/processor.h +++ /dev/null @@ -1,12 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0-only */ - -#ifndef __ASM_VDSO_CSKY_PROCESSOR_H -#define __ASM_VDSO_CSKY_PROCESSOR_H - -#ifndef __ASSEMBLY__ - -#define cpu_relax() barrier() - -#endif /* __ASSEMBLY__ */ - -#endif /* __ASM_VDSO_CSKY_PROCESSOR_H */ diff --git a/arch/csky/include/asm/vdso/vsyscall.h b/arch/csky/include/asm/vdso/vsyscall.h deleted file mode 100644 index c276211a7c4d..000000000000 --- a/arch/csky/include/asm/vdso/vsyscall.h +++ /dev/null @@ -1,22 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 */ - -#ifndef __ASM_VDSO_CSKY_VSYSCALL_H -#define __ASM_VDSO_CSKY_VSYSCALL_H - -#ifndef __ASSEMBLY__ - -#include <vdso/datapage.h> - -extern struct vdso_data *vdso_data; - -static __always_inline struct vdso_data *__csky_get_k_vdso_data(void) -{ - return vdso_data; -} -#define __arch_get_k_vdso_data __csky_get_k_vdso_data - -#include <asm-generic/vdso/vsyscall.h> - -#endif /* !__ASSEMBLY__ */ - -#endif /* __ASM_VDSO_CSKY_VSYSCALL_H */ diff --git a/arch/csky/include/uapi/asm/Kbuild b/arch/csky/include/uapi/asm/Kbuild index e78470141932..2501e82a1a0a 100644 --- a/arch/csky/include/uapi/asm/Kbuild +++ b/arch/csky/include/uapi/asm/Kbuild @@ -1,2 +1,4 @@ # SPDX-License-Identifier: GPL-2.0 +syscall-y += unistd_32.h + generic-y += ucontext.h diff --git a/arch/csky/include/uapi/asm/unistd.h b/arch/csky/include/uapi/asm/unistd.h index 7ff6a2466af1..44882179a6e1 100644 --- a/arch/csky/include/uapi/asm/unistd.h +++ b/arch/csky/include/uapi/asm/unistd.h @@ -1,14 +1,6 @@ /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ -#define __ARCH_WANT_STAT64 -#define __ARCH_WANT_NEW_STAT -#define __ARCH_WANT_SYS_CLONE -#define __ARCH_WANT_SYS_CLONE3 -#define __ARCH_WANT_SET_GET_RLIMIT -#define __ARCH_WANT_TIME32_SYSCALLS -#include <asm-generic/unistd.h> +#include <asm/unistd_32.h> -#define __NR_set_thread_area (__NR_arch_specific_syscall + 0) -__SYSCALL(__NR_set_thread_area, sys_set_thread_area) -#define __NR_cacheflush (__NR_arch_specific_syscall + 1) -__SYSCALL(__NR_cacheflush, sys_cacheflush) +#define __NR_sync_file_range2 84 +#undef __NR_sync_file_range |