diff options
Diffstat (limited to 'arch/s390/include/asm')
-rw-r--r-- | arch/s390/include/asm/kvm_host.h | 8 | ||||
-rw-r--r-- | arch/s390/include/asm/lowcore.h | 4 | ||||
-rw-r--r-- | arch/s390/include/asm/page.h | 4 | ||||
-rw-r--r-- | arch/s390/include/asm/pci.h | 2 | ||||
-rw-r--r-- | arch/s390/include/asm/pci_insn.h | 10 | ||||
-rw-r--r-- | arch/s390/include/asm/pci_io.h | 10 | ||||
-rw-r--r-- | arch/s390/include/asm/pgalloc.h | 16 | ||||
-rw-r--r-- | arch/s390/include/asm/pgtable.h | 10 | ||||
-rw-r--r-- | arch/s390/include/asm/processor.h | 1 | ||||
-rw-r--r-- | arch/s390/include/asm/qdio.h | 2 | ||||
-rw-r--r-- | arch/s390/include/asm/setup.h | 7 | ||||
-rw-r--r-- | arch/s390/include/asm/spinlock_types.h | 4 | ||||
-rw-r--r-- | arch/s390/include/asm/syscall.h | 12 | ||||
-rw-r--r-- | arch/s390/include/asm/timex.h | 18 | ||||
-rw-r--r-- | arch/s390/include/asm/uaccess.h | 4 | ||||
-rw-r--r-- | arch/s390/include/asm/unwind.h | 1 | ||||
-rw-r--r-- | arch/s390/include/asm/vdso.h | 1 |
17 files changed, 76 insertions, 38 deletions
diff --git a/arch/s390/include/asm/kvm_host.h b/arch/s390/include/asm/kvm_host.h index 2b00a3ebee08..8b5a39e4739a 100644 --- a/arch/s390/include/asm/kvm_host.h +++ b/arch/s390/include/asm/kvm_host.h @@ -30,12 +30,12 @@ #define KVM_USER_MEM_SLOTS 32 /* - * These seem to be used for allocating ->chip in the routing table, - * which we don't use. 4096 is an out-of-thin-air value. If we need - * to look at ->chip later on, we'll need to revisit this. + * These seem to be used for allocating ->chip in the routing table, which we + * don't use. 1 is as small as we can get to reduce the needed memory. If we + * need to look at ->chip later on, we'll need to revisit this. */ #define KVM_NR_IRQCHIPS 1 -#define KVM_IRQCHIP_NUM_PINS 4096 +#define KVM_IRQCHIP_NUM_PINS 1 #define KVM_HALT_POLL_NS_DEFAULT 50000 /* s390-specific vcpu->requests bit members */ diff --git a/arch/s390/include/asm/lowcore.h b/arch/s390/include/asm/lowcore.h index 237ee0c4169f..612ed3c6d581 100644 --- a/arch/s390/include/asm/lowcore.h +++ b/arch/s390/include/asm/lowcore.h @@ -141,7 +141,9 @@ struct lowcore { /* br %r1 trampoline */ __u16 br_r1_trampoline; /* 0x0400 */ - __u8 pad_0x0402[0x0e00-0x0402]; /* 0x0402 */ + __u32 return_lpswe; /* 0x0402 */ + __u32 return_mcck_lpswe; /* 0x0406 */ + __u8 pad_0x040a[0x0e00-0x040a]; /* 0x040a */ /* * 0xe00 contains the address of the IPL Parameter Information diff --git a/arch/s390/include/asm/page.h b/arch/s390/include/asm/page.h index 823578c6b9e2..e399102367af 100644 --- a/arch/s390/include/asm/page.h +++ b/arch/s390/include/asm/page.h @@ -33,6 +33,8 @@ #define ARCH_HAS_PREPARE_HUGEPAGE #define ARCH_HAS_HUGEPAGE_CLEAR_FLUSH +#define HAVE_ARCH_HUGETLB_UNMAPPED_AREA + #include <asm/setup.h> #ifndef __ASSEMBLY__ @@ -40,7 +42,7 @@ void __storage_key_init_range(unsigned long start, unsigned long end); static inline void storage_key_init_range(unsigned long start, unsigned long end) { - if (PAGE_DEFAULT_KEY) + if (PAGE_DEFAULT_KEY != 0) __storage_key_init_range(start, end); } diff --git a/arch/s390/include/asm/pci.h b/arch/s390/include/asm/pci.h index 305befd55326..0cca0e2d2a35 100644 --- a/arch/s390/include/asm/pci.h +++ b/arch/s390/include/asm/pci.h @@ -183,7 +183,7 @@ void zpci_remove_reserved_devices(void); /* CLP */ int clp_scan_pci_devices(void); int clp_rescan_pci_devices(void); -int clp_rescan_pci_devices_simple(void); +int clp_rescan_pci_devices_simple(u32 *fid); int clp_add_pci_device(u32, u32, int); int clp_enable_fh(struct zpci_dev *, u8); int clp_disable_fh(struct zpci_dev *); diff --git a/arch/s390/include/asm/pci_insn.h b/arch/s390/include/asm/pci_insn.h index ff81ed19c506..61cf9531f68f 100644 --- a/arch/s390/include/asm/pci_insn.h +++ b/arch/s390/include/asm/pci_insn.h @@ -143,14 +143,4 @@ static inline int zpci_set_irq_ctrl(u16 ctl, u8 isc) return __zpci_set_irq_ctrl(ctl, isc, &iib); } -#ifdef CONFIG_PCI -static inline void enable_mio_ctl(void) -{ - if (static_branch_likely(&have_mio)) - __ctl_set_bit(2, 5); -} -#else /* CONFIG_PCI */ -static inline void enable_mio_ctl(void) {} -#endif /* CONFIG_PCI */ - #endif diff --git a/arch/s390/include/asm/pci_io.h b/arch/s390/include/asm/pci_io.h index cd060b5dd8fd..e4dc64cc9c55 100644 --- a/arch/s390/include/asm/pci_io.h +++ b/arch/s390/include/asm/pci_io.h @@ -8,6 +8,10 @@ #include <linux/slab.h> #include <asm/pci_insn.h> +/* I/O size constraints */ +#define ZPCI_MAX_READ_SIZE 8 +#define ZPCI_MAX_WRITE_SIZE 128 + /* I/O Map */ #define ZPCI_IOMAP_SHIFT 48 #define ZPCI_IOMAP_ADDR_BASE 0x8000000000000000UL @@ -140,7 +144,8 @@ static inline int zpci_memcpy_fromio(void *dst, while (n > 0) { size = zpci_get_max_write_size((u64 __force) src, - (u64) dst, n, 8); + (u64) dst, n, + ZPCI_MAX_READ_SIZE); rc = zpci_read_single(dst, src, size); if (rc) break; @@ -161,7 +166,8 @@ static inline int zpci_memcpy_toio(volatile void __iomem *dst, while (n > 0) { size = zpci_get_max_write_size((u64 __force) dst, - (u64) src, n, 128); + (u64) src, n, + ZPCI_MAX_WRITE_SIZE); if (size > 8) /* main path */ rc = zpci_write_block(dst, src, size); else diff --git a/arch/s390/include/asm/pgalloc.h b/arch/s390/include/asm/pgalloc.h index bccb8f4a63e2..77606c4acd58 100644 --- a/arch/s390/include/asm/pgalloc.h +++ b/arch/s390/include/asm/pgalloc.h @@ -56,7 +56,12 @@ static inline p4d_t *p4d_alloc_one(struct mm_struct *mm, unsigned long address) crst_table_init(table, _REGION2_ENTRY_EMPTY); return (p4d_t *) table; } -#define p4d_free(mm, p4d) crst_table_free(mm, (unsigned long *) p4d) + +static inline void p4d_free(struct mm_struct *mm, p4d_t *p4d) +{ + if (!mm_p4d_folded(mm)) + crst_table_free(mm, (unsigned long *) p4d); +} static inline pud_t *pud_alloc_one(struct mm_struct *mm, unsigned long address) { @@ -65,7 +70,12 @@ static inline pud_t *pud_alloc_one(struct mm_struct *mm, unsigned long address) crst_table_init(table, _REGION3_ENTRY_EMPTY); return (pud_t *) table; } -#define pud_free(mm, pud) crst_table_free(mm, (unsigned long *) pud) + +static inline void pud_free(struct mm_struct *mm, pud_t *pud) +{ + if (!mm_pud_folded(mm)) + crst_table_free(mm, (unsigned long *) pud); +} static inline pmd_t *pmd_alloc_one(struct mm_struct *mm, unsigned long vmaddr) { @@ -83,6 +93,8 @@ static inline pmd_t *pmd_alloc_one(struct mm_struct *mm, unsigned long vmaddr) static inline void pmd_free(struct mm_struct *mm, pmd_t *pmd) { + if (mm_pmd_folded(mm)) + return; pgtable_pmd_page_dtor(virt_to_page(pmd)); crst_table_free(mm, (unsigned long *) pmd); } diff --git a/arch/s390/include/asm/pgtable.h b/arch/s390/include/asm/pgtable.h index 3c17771fe43e..cb9ded67c77c 100644 --- a/arch/s390/include/asm/pgtable.h +++ b/arch/s390/include/asm/pgtable.h @@ -755,6 +755,12 @@ static inline int pmd_write(pmd_t pmd) return (pmd_val(pmd) & _SEGMENT_ENTRY_WRITE) != 0; } +#define pud_write pud_write +static inline int pud_write(pud_t pud) +{ + return (pud_val(pud) & _REGION3_ENTRY_WRITE) != 0; +} + static inline int pmd_dirty(pmd_t pmd) { int dirty = 1; @@ -1172,8 +1178,6 @@ void gmap_pmdp_idte_global(struct mm_struct *mm, unsigned long vmaddr); static inline void set_pte_at(struct mm_struct *mm, unsigned long addr, pte_t *ptep, pte_t entry) { - if (!MACHINE_HAS_NX) - pte_val(entry) &= ~_PAGE_NOEXEC; if (pte_present(entry)) pte_val(entry) &= ~_PAGE_UNUSED; if (mm_has_pgste(mm)) @@ -1190,6 +1194,8 @@ static inline pte_t mk_pte_phys(unsigned long physpage, pgprot_t pgprot) { pte_t __pte; pte_val(__pte) = physpage + pgprot_val(pgprot); + if (!MACHINE_HAS_NX) + pte_val(__pte) &= ~_PAGE_NOEXEC; return pte_mkyoung(__pte); } diff --git a/arch/s390/include/asm/processor.h b/arch/s390/include/asm/processor.h index b0fcbc37b637..2c0b8b5fe19a 100644 --- a/arch/s390/include/asm/processor.h +++ b/arch/s390/include/asm/processor.h @@ -161,6 +161,7 @@ typedef struct thread_struct thread_struct; #define INIT_THREAD { \ .ksp = sizeof(init_stack) + (unsigned long) &init_stack, \ .fpu.regs = (void *) init_task.thread.fpu.fprs, \ + .last_break = 1, \ } /* diff --git a/arch/s390/include/asm/qdio.h b/arch/s390/include/asm/qdio.h index db5ef22c46e4..b265106ca331 100644 --- a/arch/s390/include/asm/qdio.h +++ b/arch/s390/include/asm/qdio.h @@ -228,7 +228,7 @@ struct qdio_buffer { * @sbal: absolute SBAL address */ struct sl_element { - unsigned long sbal; + u64 sbal; } __attribute__ ((packed)); /** diff --git a/arch/s390/include/asm/setup.h b/arch/s390/include/asm/setup.h index 925889d360c1..eb83a57cb503 100644 --- a/arch/s390/include/asm/setup.h +++ b/arch/s390/include/asm/setup.h @@ -8,6 +8,7 @@ #include <linux/const.h> #include <uapi/asm/setup.h> +#include <linux/build_bug.h> #define EP_OFFSET 0x10008 #define EP_STRING "S390EP" @@ -153,6 +154,12 @@ static inline unsigned long kaslr_offset(void) return __kaslr_offset; } +static inline u32 gen_lpswe(unsigned long addr) +{ + BUILD_BUG_ON(addr > 0xfff); + return 0xb2b20000 | addr; +} + #else /* __ASSEMBLY__ */ #define IPL_DEVICE (IPL_DEVICE_OFFSET) diff --git a/arch/s390/include/asm/spinlock_types.h b/arch/s390/include/asm/spinlock_types.h index cfed272e4fd5..8e28e8176ec8 100644 --- a/arch/s390/include/asm/spinlock_types.h +++ b/arch/s390/include/asm/spinlock_types.h @@ -2,10 +2,6 @@ #ifndef __ASM_SPINLOCK_TYPES_H #define __ASM_SPINLOCK_TYPES_H -#ifndef __LINUX_SPINLOCK_TYPES_H -# error "please don't include this file directly" -#endif - typedef struct { int lock; } __attribute__ ((aligned (4))) arch_spinlock_t; diff --git a/arch/s390/include/asm/syscall.h b/arch/s390/include/asm/syscall.h index f073292e9fdb..d9d5de0f67ff 100644 --- a/arch/s390/include/asm/syscall.h +++ b/arch/s390/include/asm/syscall.h @@ -33,7 +33,17 @@ static inline void syscall_rollback(struct task_struct *task, static inline long syscall_get_error(struct task_struct *task, struct pt_regs *regs) { - return IS_ERR_VALUE(regs->gprs[2]) ? regs->gprs[2] : 0; + unsigned long error = regs->gprs[2]; +#ifdef CONFIG_COMPAT + if (test_tsk_thread_flag(task, TIF_31BIT)) { + /* + * Sign-extend the value so (int)-EFOO becomes (long)-EFOO + * and will match correctly in comparisons. + */ + error = (long)(int)error; + } +#endif + return IS_ERR_VALUE(error) ? error : 0; } static inline long syscall_get_return_value(struct task_struct *task, diff --git a/arch/s390/include/asm/timex.h b/arch/s390/include/asm/timex.h index 64539c221672..b6a4ce9dafaf 100644 --- a/arch/s390/include/asm/timex.h +++ b/arch/s390/include/asm/timex.h @@ -10,8 +10,9 @@ #ifndef _ASM_S390_TIMEX_H #define _ASM_S390_TIMEX_H -#include <asm/lowcore.h> +#include <linux/preempt.h> #include <linux/time64.h> +#include <asm/lowcore.h> /* The value of the TOD clock for 1.1.1970. */ #define TOD_UNIX_EPOCH 0x7d91048bca000000ULL @@ -154,7 +155,7 @@ static inline void get_tod_clock_ext(char *clk) static inline unsigned long long get_tod_clock(void) { - unsigned char clk[STORE_CLOCK_EXT_SIZE]; + char clk[STORE_CLOCK_EXT_SIZE]; get_tod_clock_ext(clk); return *((unsigned long long *)&clk[1]); @@ -186,15 +187,18 @@ extern unsigned char tod_clock_base[16] __aligned(8); /** * get_clock_monotonic - returns current time in clock rate units * - * The caller must ensure that preemption is disabled. * The clock and tod_clock_base get changed via stop_machine. - * Therefore preemption must be disabled when calling this - * function, otherwise the returned value is not guaranteed to - * be monotonic. + * Therefore preemption must be disabled, otherwise the returned + * value is not guaranteed to be monotonic. */ static inline unsigned long long get_tod_clock_monotonic(void) { - return get_tod_clock() - *(unsigned long long *) &tod_clock_base[1]; + unsigned long long tod; + + preempt_disable_notrace(); + tod = get_tod_clock() - *(unsigned long long *) &tod_clock_base[1]; + preempt_enable_notrace(); + return tod; } /** diff --git a/arch/s390/include/asm/uaccess.h b/arch/s390/include/asm/uaccess.h index bd2fd9a7821d..a470f1fa9f2a 100644 --- a/arch/s390/include/asm/uaccess.h +++ b/arch/s390/include/asm/uaccess.h @@ -83,7 +83,7 @@ raw_copy_to_user(void __user *to, const void *from, unsigned long n); __rc; \ }) -static inline int __put_user_fn(void *x, void __user *ptr, unsigned long size) +static __always_inline int __put_user_fn(void *x, void __user *ptr, unsigned long size) { unsigned long spec = 0x010000UL; int rc; @@ -113,7 +113,7 @@ static inline int __put_user_fn(void *x, void __user *ptr, unsigned long size) return rc; } -static inline int __get_user_fn(void *x, const void __user *ptr, unsigned long size) +static __always_inline int __get_user_fn(void *x, const void __user *ptr, unsigned long size) { unsigned long spec = 0x01UL; int rc; diff --git a/arch/s390/include/asm/unwind.h b/arch/s390/include/asm/unwind.h index 6eb2ef105d87..ac4568d60d08 100644 --- a/arch/s390/include/asm/unwind.h +++ b/arch/s390/include/asm/unwind.h @@ -35,6 +35,7 @@ struct unwind_state { struct task_struct *task; struct pt_regs *regs; unsigned long sp, ip; + bool reuse_sp; int graph_idx; bool reliable; bool error; diff --git a/arch/s390/include/asm/vdso.h b/arch/s390/include/asm/vdso.h index 169d7604eb80..f3ba84fa9bd1 100644 --- a/arch/s390/include/asm/vdso.h +++ b/arch/s390/include/asm/vdso.h @@ -36,6 +36,7 @@ struct vdso_data { __u32 tk_shift; /* Shift used for xtime_nsec 0x60 */ __u32 ts_dir; /* TOD steering direction 0x64 */ __u64 ts_end; /* TOD steering end 0x68 */ + __u32 hrtimer_res; /* hrtimer resolution 0x70 */ }; struct vdso_per_cpu_data { |