diff options
Diffstat (limited to 'arch/s390')
39 files changed, 334 insertions, 261 deletions
diff --git a/arch/s390/Kconfig b/arch/s390/Kconfig index 2c9789d..22f75b5 100644 --- a/arch/s390/Kconfig +++ b/arch/s390/Kconfig @@ -98,7 +98,6 @@ config S390 select CLONE_BACKWARDS2 select GENERIC_CLOCKEVENTS select GENERIC_CPU_DEVICES if !SMP - select GENERIC_KERNEL_THREAD select GENERIC_SMP_IDLE_THREAD select GENERIC_TIME_VSYSCALL_OLD select HAVE_ALIGNED_STRUCT_PAGE if SLUB @@ -302,7 +301,6 @@ config HOTPLUG_CPU def_bool y prompt "Support for hot-pluggable CPUs" depends on SMP - select HOTPLUG help Say Y here to be able to turn CPUs off and on. CPUs can be controlled through /sys/devices/system/cpu/cpu#. diff --git a/arch/s390/appldata/appldata_base.c b/arch/s390/appldata/appldata_base.c index bae0f40..87a2209 100644 --- a/arch/s390/appldata/appldata_base.c +++ b/arch/s390/appldata/appldata_base.c @@ -212,7 +212,9 @@ appldata_timer_handler(ctl_table *ctl, int write, return 0; } if (!write) { - len = sprintf(buf, appldata_timer_active ? "1\n" : "0\n"); + strncpy(buf, appldata_timer_active ? "1\n" : "0\n", + ARRAY_SIZE(buf)); + len = strnlen(buf, ARRAY_SIZE(buf)); if (len > *lenp) len = *lenp; if (copy_to_user(buffer, buf, len)) @@ -317,7 +319,8 @@ appldata_generic_handler(ctl_table *ctl, int write, return 0; } if (!write) { - len = sprintf(buf, ops->active ? "1\n" : "0\n"); + strncpy(buf, ops->active ? "1\n" : "0\n", ARRAY_SIZE(buf)); + len = strnlen(buf, ARRAY_SIZE(buf)); if (len > *lenp) len = *lenp; if (copy_to_user(buffer, buf, len)) { diff --git a/arch/s390/appldata/appldata_mem.c b/arch/s390/appldata/appldata_mem.c index 7ef60b5..42be537 100644 --- a/arch/s390/appldata/appldata_mem.c +++ b/arch/s390/appldata/appldata_mem.c @@ -32,7 +32,7 @@ * book: * http://oss.software.ibm.com/developerworks/opensource/linux390/index.shtml */ -static struct appldata_mem_data { +struct appldata_mem_data { u64 timestamp; u32 sync_count_1; /* after VM collected the record data, */ u32 sync_count_2; /* sync_count_1 and sync_count_2 should be the @@ -63,7 +63,7 @@ static struct appldata_mem_data { u64 pgmajfault; /* page faults (major only) */ // <-- New in 2.6 -} __attribute__((packed)) appldata_mem_data; +} __packed; /* @@ -118,7 +118,6 @@ static struct appldata_ops ops = { .record_nr = APPLDATA_RECORD_MEM_ID, .size = sizeof(struct appldata_mem_data), .callback = &appldata_get_mem_data, - .data = &appldata_mem_data, .owner = THIS_MODULE, .mod_lvl = {0xF0, 0xF0}, /* EBCDIC "00" */ }; @@ -131,7 +130,17 @@ static struct appldata_ops ops = { */ static int __init appldata_mem_init(void) { - return appldata_register_ops(&ops); + int ret; + + ops.data = kzalloc(sizeof(struct appldata_mem_data), GFP_KERNEL); + if (!ops.data) + return -ENOMEM; + + ret = appldata_register_ops(&ops); + if (ret) + kfree(ops.data); + + return ret; } /* @@ -142,6 +151,7 @@ static int __init appldata_mem_init(void) static void __exit appldata_mem_exit(void) { appldata_unregister_ops(&ops); + kfree(ops.data); } diff --git a/arch/s390/appldata/appldata_net_sum.c b/arch/s390/appldata/appldata_net_sum.c index 2d224b9..66037d2 100644 --- a/arch/s390/appldata/appldata_net_sum.c +++ b/arch/s390/appldata/appldata_net_sum.c @@ -29,7 +29,7 @@ * book: * http://oss.software.ibm.com/developerworks/opensource/linux390/index.shtml */ -static struct appldata_net_sum_data { +struct appldata_net_sum_data { u64 timestamp; u32 sync_count_1; /* after VM collected the record data, */ u32 sync_count_2; /* sync_count_1 and sync_count_2 should be the @@ -51,7 +51,7 @@ static struct appldata_net_sum_data { u64 rx_dropped; /* no space in linux buffers */ u64 tx_dropped; /* no space available in linux */ u64 collisions; /* collisions while transmitting */ -} __attribute__((packed)) appldata_net_sum_data; +} __packed; /* @@ -121,7 +121,6 @@ static struct appldata_ops ops = { .record_nr = APPLDATA_RECORD_NET_SUM_ID, .size = sizeof(struct appldata_net_sum_data), .callback = &appldata_get_net_sum_data, - .data = &appldata_net_sum_data, .owner = THIS_MODULE, .mod_lvl = {0xF0, 0xF0}, /* EBCDIC "00" */ }; @@ -134,7 +133,17 @@ static struct appldata_ops ops = { */ static int __init appldata_net_init(void) { - return appldata_register_ops(&ops); + int ret; + + ops.data = kzalloc(sizeof(struct appldata_net_sum_data), GFP_KERNEL); + if (!ops.data) + return -ENOMEM; + + ret = appldata_register_ops(&ops); + if (ret) + kfree(ops.data); + + return ret; } /* @@ -145,6 +154,7 @@ static int __init appldata_net_init(void) static void __exit appldata_net_exit(void) { appldata_unregister_ops(&ops); + kfree(ops.data); } diff --git a/arch/s390/hypfs/hypfs_diag.c b/arch/s390/hypfs/hypfs_diag.c index 7fd3690..138893e 100644 --- a/arch/s390/hypfs/hypfs_diag.c +++ b/arch/s390/hypfs/hypfs_diag.c @@ -651,9 +651,7 @@ static int hypfs_create_cpu_files(struct super_block *sb, } diag224_idx2name(cpu_info__ctidx(diag204_info_type, cpu_info), buffer); rc = hypfs_create_str(sb, cpu_dir, "type", buffer); - if (IS_ERR(rc)) - return PTR_ERR(rc); - return 0; + return PTR_RET(rc); } static void *hypfs_create_lpar_files(struct super_block *sb, @@ -702,9 +700,7 @@ static int hypfs_create_phys_cpu_files(struct super_block *sb, return PTR_ERR(rc); diag224_idx2name(phys_cpu__ctidx(diag204_info_type, cpu_info), buffer); rc = hypfs_create_str(sb, cpu_dir, "type", buffer); - if (IS_ERR(rc)) - return PTR_ERR(rc); - return 0; + return PTR_RET(rc); } static void *hypfs_create_phys_files(struct super_block *sb, diff --git a/arch/s390/include/asm/airq.h b/arch/s390/include/asm/airq.h index 9819891..4066cee 100644 --- a/arch/s390/include/asm/airq.h +++ b/arch/s390/include/asm/airq.h @@ -9,9 +9,18 @@ #ifndef _ASM_S390_AIRQ_H #define _ASM_S390_AIRQ_H -typedef void (*adapter_int_handler_t)(void *, void *); +struct airq_struct { + struct hlist_node list; /* Handler queueing. */ + void (*handler)(struct airq_struct *); /* Thin-interrupt handler */ + u8 *lsi_ptr; /* Local-Summary-Indicator pointer */ + u8 lsi_mask; /* Local-Summary-Indicator mask */ + u8 isc; /* Interrupt-subclass */ + u8 flags; +}; -void *s390_register_adapter_interrupt(adapter_int_handler_t, void *, u8); -void s390_unregister_adapter_interrupt(void *, u8); +#define AIRQ_PTR_ALLOCATED 0x01 + +int register_adapter_interrupt(struct airq_struct *airq); +void unregister_adapter_interrupt(struct airq_struct *airq); #endif /* _ASM_S390_AIRQ_H */ diff --git a/arch/s390/include/asm/dma-mapping.h b/arch/s390/include/asm/dma-mapping.h index 9411db65..3fbc67d 100644 --- a/arch/s390/include/asm/dma-mapping.h +++ b/arch/s390/include/asm/dma-mapping.h @@ -50,9 +50,10 @@ static inline int dma_mapping_error(struct device *dev, dma_addr_t dma_addr) { struct dma_map_ops *dma_ops = get_dma_ops(dev); + debug_dma_mapping_error(dev, dma_addr); if (dma_ops->mapping_error) return dma_ops->mapping_error(dev, dma_addr); - return (dma_addr == 0UL); + return dma_addr == DMA_ERROR_CODE; } static inline void *dma_alloc_coherent(struct device *dev, size_t size, @@ -71,8 +72,8 @@ static inline void dma_free_coherent(struct device *dev, size_t size, { struct dma_map_ops *dma_ops = get_dma_ops(dev); - dma_ops->free(dev, size, cpu_addr, dma_handle, NULL); debug_dma_free_coherent(dev, size, cpu_addr, dma_handle); + dma_ops->free(dev, size, cpu_addr, dma_handle, NULL); } #endif /* _ASM_S390_DMA_MAPPING_H */ diff --git a/arch/s390/include/asm/facility.h b/arch/s390/include/asm/facility.h index 2ee66a6..0aa6a7e 100644 --- a/arch/s390/include/asm/facility.h +++ b/arch/s390/include/asm/facility.h @@ -13,6 +13,16 @@ #define MAX_FACILITY_BIT (256*8) /* stfle_fac_list has 256 bytes */ +static inline int __test_facility(unsigned long nr, void *facilities) +{ + unsigned char *ptr; + + if (nr >= MAX_FACILITY_BIT) + return 0; + ptr = (unsigned char *) facilities + (nr >> 3); + return (*ptr & (0x80 >> (nr & 7))) != 0; +} + /* * The test_facility function uses the bit odering where the MSB is bit 0. * That makes it easier to query facility bits with the bit number as @@ -20,12 +30,7 @@ */ static inline int test_facility(unsigned long nr) { - unsigned char *ptr; - - if (nr >= MAX_FACILITY_BIT) - return 0; - ptr = (unsigned char *) &S390_lowcore.stfle_fac_list + (nr >> 3); - return (*ptr & (0x80 >> (nr & 7))) != 0; + return __test_facility(nr, &S390_lowcore.stfle_fac_list); } /** diff --git a/arch/s390/include/asm/ftrace.h b/arch/s390/include/asm/ftrace.h index b7931fa..bf246da 100644 --- a/arch/s390/include/asm/ftrace.h +++ b/arch/s390/include/asm/ftrace.h @@ -9,11 +9,6 @@ struct dyn_arch_ftrace { }; #define MCOUNT_ADDR ((long)_mcount) -#ifdef CONFIG_64BIT -#define MCOUNT_INSN_SIZE 12 -#else -#define MCOUNT_INSN_SIZE 20 -#endif static inline unsigned long ftrace_call_adjust(unsigned long addr) { @@ -21,4 +16,11 @@ static inline unsigned long ftrace_call_adjust(unsigned long addr) } #endif /* __ASSEMBLY__ */ + +#ifdef CONFIG_64BIT +#define MCOUNT_INSN_SIZE 12 +#else +#define MCOUNT_INSN_SIZE 22 +#endif + #endif /* _ASM_S390_FTRACE_H */ diff --git a/arch/s390/include/asm/io.h b/arch/s390/include/asm/io.h index 379d96e..cd6b9ee 100644 --- a/arch/s390/include/asm/io.h +++ b/arch/s390/include/asm/io.h @@ -13,29 +13,8 @@ #include <asm/page.h> #include <asm/pci_io.h> -/* - * Change virtual addresses to physical addresses and vv. - * These are pretty trivial - */ -static inline unsigned long virt_to_phys(volatile void * address) -{ - unsigned long real_address; - asm volatile( - " lra %0,0(%1)\n" - " jz 0f\n" - " la %0,0\n" - "0:" - : "=a" (real_address) : "a" (address) : "cc"); - return real_address; -} -#define virt_to_phys virt_to_phys - -static inline void * phys_to_virt(unsigned long address) -{ - return (void *) address; -} - void *xlate_dev_mem_ptr(unsigned long phys); +#define xlate_dev_mem_ptr xlate_dev_mem_ptr void unxlate_dev_mem_ptr(unsigned long phys, void *addr); /* diff --git a/arch/s390/include/asm/page.h b/arch/s390/include/asm/page.h index 75ce9b0..5d64fb7 100644 --- a/arch/s390/include/asm/page.h +++ b/arch/s390/include/asm/page.h @@ -32,7 +32,7 @@ void storage_key_init_range(unsigned long start, unsigned long end); -static unsigned long pfmf(unsigned long function, unsigned long address) +static inline unsigned long pfmf(unsigned long function, unsigned long address) { asm volatile( " .insn rre,0xb9af0000,%[function],%[address]" @@ -44,17 +44,13 @@ static unsigned long pfmf(unsigned long function, unsigned long address) static inline void clear_page(void *page) { - if (MACHINE_HAS_PFMF) { - pfmf(0x10000, (unsigned long)page); - } else { - register unsigned long reg1 asm ("1") = 0; - register void *reg2 asm ("2") = page; - register unsigned long reg3 asm ("3") = 4096; - asm volatile( - " mvcl 2,0" - : "+d" (reg2), "+d" (reg3) : "d" (reg1) - : "memory", "cc"); - } + register unsigned long reg1 asm ("1") = 0; + register void *reg2 asm ("2") = page; + register unsigned long reg3 asm ("3") = 4096; + asm volatile( + " mvcl 2,0" + : "+d" (reg2), "+d" (reg3) : "d" (reg1) + : "memory", "cc"); } static inline void copy_page(void *to, void *from) diff --git a/arch/s390/include/asm/pci.h b/arch/s390/include/asm/pci.h index 6c18012..6e577ba 100644 --- a/arch/s390/include/asm/pci.h +++ b/arch/s390/include/asm/pci.h @@ -120,7 +120,6 @@ struct zpci_dev { struct dentry *debugfs_dev; struct dentry *debugfs_perf; - struct dentry *debugfs_debug; }; struct pci_hp_callback_ops { @@ -143,7 +142,6 @@ int zpci_enable_device(struct zpci_dev *); int zpci_disable_device(struct zpci_dev *); void zpci_stop_device(struct zpci_dev *); void zpci_free_device(struct zpci_dev *); -int zpci_scan_device(struct zpci_dev *); int zpci_register_ioat(struct zpci_dev *, u8, u64, u64, u64); int zpci_unregister_ioat(struct zpci_dev *, u8); diff --git a/arch/s390/include/asm/pgtable.h b/arch/s390/include/asm/pgtable.h index 1d0ad7d..0ea4e59 100644 --- a/arch/s390/include/asm/pgtable.h +++ b/arch/s390/include/asm/pgtable.h @@ -58,9 +58,6 @@ extern unsigned long zero_page_mask; #define __HAVE_COLOR_ZERO_PAGE /* TODO: s390 cannot support io_remap_pfn_range... */ -#define io_remap_pfn_range(vma, vaddr, pfn, size, prot) \ - remap_pfn_range(vma, vaddr, pfn, size, prot) - #endif /* !__ASSEMBLY__ */ /* @@ -619,7 +616,7 @@ static inline pgste_t pgste_get_lock(pte_t *ptep) " csg %0,%1,%2\n" " jl 0b\n" : "=&d" (old), "=&d" (new), "=Q" (ptep[PTRS_PER_PTE]) - : "Q" (ptep[PTRS_PER_PTE]) : "cc"); + : "Q" (ptep[PTRS_PER_PTE]) : "cc", "memory"); #endif return __pgste(new); } @@ -631,18 +628,26 @@ static inline void pgste_set_unlock(pte_t *ptep, pgste_t pgste) " nihh %1,0xff7f\n" /* clear PCL bit */ " stg %1,%0\n" : "=Q" (ptep[PTRS_PER_PTE]) - : "d" (pgste_val(pgste)), "Q" (ptep[PTRS_PER_PTE]) : "cc"); + : "d" (pgste_val(pgste)), "Q" (ptep[PTRS_PER_PTE]) + : "cc", "memory"); preempt_enable(); #endif } +static inline void pgste_set(pte_t *ptep, pgste_t pgste) +{ +#ifdef CONFIG_PGSTE + *(pgste_t *)(ptep + PTRS_PER_PTE) = pgste; +#endif +} + static inline pgste_t pgste_update_all(pte_t *ptep, pgste_t pgste) { #ifdef CONFIG_PGSTE unsigned long address, bits; unsigned char skey; - if (!pte_present(*ptep)) + if (pte_val(*ptep) & _PAGE_INVALID) return pgste; address = pte_val(*ptep) & PAGE_MASK; skey = page_get_storage_key(address); @@ -676,7 +681,7 @@ static inline pgste_t pgste_update_young(pte_t *ptep, pgste_t pgste) #ifdef CONFIG_PGSTE int young; - if (!pte_present(*ptep)) + if (pte_val(*ptep) & _PAGE_INVALID) return pgste; /* Get referenced bit from storage key */ young = page_reset_referenced(pte_val(*ptep) & PAGE_MASK); @@ -700,17 +705,19 @@ static inline void pgste_set_key(pte_t *ptep, pgste_t pgste, pte_t entry) { #ifdef CONFIG_PGSTE unsigned long address; - unsigned long okey, nkey; + unsigned long nkey; - if (!pte_present(entry)) + if (pte_val(entry) & _PAGE_INVALID) return; + VM_BUG_ON(!(pte_val(*ptep) & _PAGE_INVALID)); address = pte_val(entry) & PAGE_MASK; - okey = nkey = page_get_storage_key(address); - nkey &= ~(_PAGE_ACC_BITS | _PAGE_FP_BIT); - /* Set page access key and fetch protection bit from pgste */ - nkey |= (pgste_val(pgste) & (PGSTE_ACC_BITS | PGSTE_FP_BIT)) >> 56; - if (okey != nkey) - page_set_storage_key(address, nkey, 0); + /* + * Set page access key and fetch protection bit from pgste. + * The guest C/R information is still in the PGSTE, set real + * key C/R to 0. + */ + nkey = (pgste_val(pgste) & (PGSTE_ACC_BITS | PGSTE_FP_BIT)) >> 56; + page_set_storage_key(address, nkey, 0); #endif } @@ -1095,6 +1102,11 @@ static inline pte_t ptep_modify_prot_start(struct mm_struct *mm, pte = *ptep; if (!mm_exclusive(mm)) __ptep_ipte(address, ptep); + + if (mm_has_pgste(mm)) { + pgste = pgste_update_all(&pte, pgste); + pgste_set(ptep, pgste); + } return pte; } @@ -1102,9 +1114,13 @@ static inline void ptep_modify_prot_commit(struct mm_struct *mm, unsigned long address, pte_t *ptep, pte_t pte) { + pgste_t pgste; + if (mm_has_pgste(mm)) { + pgste = *(pgste_t *)(ptep + PTRS_PER_PTE); + pgste_set_key(ptep, pgste, pte); pgste_set_pte(ptep, pte); - pgste_set_unlock(ptep, *(pgste_t *)(ptep + PTRS_PER_PTE)); + pgste_set_unlock(ptep, pgste); } else *ptep = pte; } diff --git a/arch/s390/include/asm/ptrace.h b/arch/s390/include/asm/ptrace.h index 559512a..52b5653 100644 --- a/arch/s390/include/asm/ptrace.h +++ b/arch/s390/include/asm/ptrace.h @@ -24,6 +24,7 @@ struct pt_regs unsigned long gprs[NUM_GPRS]; unsigned long orig_gpr2; unsigned int int_code; + unsigned int int_parm; unsigned long int_parm_long; }; diff --git a/arch/s390/include/uapi/asm/Kbuild b/arch/s390/include/uapi/asm/Kbuild index 9ccd190..6a9a9eb 100644 --- a/arch/s390/include/uapi/asm/Kbuild +++ b/arch/s390/include/uapi/asm/Kbuild @@ -35,6 +35,7 @@ header-y += siginfo.h header-y += signal.h header-y += socket.h header-y += sockios.h +header-y += sclp_ctl.h header-y += stat.h header-y += statfs.h header-y += swab.h diff --git a/arch/s390/include/uapi/asm/chsc.h b/arch/s390/include/uapi/asm/chsc.h index 1c6a7f8..65dc694 100644 --- a/arch/s390/include/uapi/asm/chsc.h +++ b/arch/s390/include/uapi/asm/chsc.h @@ -29,6 +29,16 @@ struct chsc_async_area { __u8 data[CHSC_SIZE - sizeof(struct chsc_async_header)]; } __attribute__ ((packed)); +struct chsc_header { + __u16 length; + __u16 code; +} __attribute__ ((packed)); + +struct chsc_sync_area { + struct chsc_header header; + __u8 data[CHSC_SIZE - sizeof(struct chsc_header)]; +} __attribute__ ((packed)); + struct chsc_response_struct { __u16 length; __u16 code; @@ -126,5 +136,8 @@ struct chsc_cpd_info { #define CHSC_INFO_CCL _IOWR(CHSC_IOCTL_MAGIC, 0x86, struct chsc_comp_list) #define CHSC_INFO_CPD _IOWR(CHSC_IOCTL_MAGIC, 0x87, struct chsc_cpd_info) #define CHSC_INFO_DCAL _IOWR(CHSC_IOCTL_MAGIC, 0x88, struct chsc_dcal) +#define CHSC_START_SYNC _IOWR(CHSC_IOCTL_MAGIC, 0x89, struct chsc_sync_area) +#define CHSC_ON_CLOSE_SET _IOWR(CHSC_IOCTL_MAGIC, 0x8a, struct chsc_async_area) +#define CHSC_ON_CLOSE_REMOVE _IO(CHSC_IOCTL_MAGIC, 0x8b) #endif diff --git a/arch/s390/include/uapi/asm/dasd.h b/arch/s390/include/uapi/asm/dasd.h index 38eca3b..5812a3b 100644 --- a/arch/s390/include/uapi/asm/dasd.h +++ b/arch/s390/include/uapi/asm/dasd.h @@ -261,6 +261,10 @@ struct dasd_snid_ioctl_data { #define BIODASDQUIESCE _IO(DASD_IOCTL_LETTER,6) /* Resume IO on device */ #define BIODASDRESUME _IO(DASD_IOCTL_LETTER,7) +/* Abort all I/O on a device */ +#define BIODASDABORTIO _IO(DASD_IOCTL_LETTER, 240) +/* Allow I/O on a device */ +#define BIODASDALLOWIO _IO(DASD_IOCTL_LETTER, 241) /* retrieve API version number */ diff --git a/arch/s390/include/uapi/asm/sclp_ctl.h b/arch/s390/include/uapi/asm/sclp_ctl.h new file mode 100644 index 0000000..f281861 --- /dev/null +++ b/arch/s390/include/uapi/asm/sclp_ctl.h @@ -0,0 +1,24 @@ +/* + * IOCTL interface for SCLP + * + * Copyright IBM Corp. 2012 + * + * Author: Michael Holzheu <holzheu@linux.vnet.ibm.com> + */ + +#ifndef _ASM_SCLP_CTL_H +#define _ASM_SCLP_CTL_H + +#include <linux/types.h> + +struct sclp_ctl_sccb { + __u32 cmdw; + __u64 sccb; +} __attribute__((packed)); + +#define SCLP_CTL_IOCTL_MAGIC 0x10 + +#define SCLP_CTL_SCCB \ + _IOWR(SCLP_CTL_IOCTL_MAGIC, 0x10, struct sclp_ctl_sccb) + +#endif diff --git a/arch/s390/kernel/asm-offsets.c b/arch/s390/kernel/asm-offsets.c index 78db633..2416138 100644 --- a/arch/s390/kernel/asm-offsets.c +++ b/arch/s390/kernel/asm-offsets.c @@ -48,6 +48,7 @@ int main(void) DEFINE(__PT_GPRS, offsetof(struct pt_regs, gprs)); DEFINE(__PT_ORIG_GPR2, offsetof(struct pt_regs, orig_gpr2)); DEFINE(__PT_INT_CODE, offsetof(struct pt_regs, int_code)); + DEFINE(__PT_INT_PARM, offsetof(struct pt_regs, int_parm)); DEFINE(__PT_INT_PARM_LONG, offsetof(struct pt_regs, int_parm_long)); DEFINE(__PT_SIZE, sizeof(struct pt_regs)); BLANK(); diff --git a/arch/s390/kernel/dis.c b/arch/s390/kernel/dis.c index 7f4a4a8..be87d3e 100644 --- a/arch/s390/kernel/dis.c +++ b/arch/s390/kernel/dis.c @@ -1862,6 +1862,8 @@ void print_fn_code(unsigned char *code, unsigned long len) while (len) { ptr = buffer; opsize = insn_length(*code); + if (opsize > len) + break; ptr += sprintf(ptr, "%p: ", code); for (i = 0; i < opsize; i++) ptr += sprintf(ptr, "%02x", code[i]); diff --git a/arch/s390/kernel/dumpstack.c b/arch/s390/kernel/dumpstack.c index 2982974..87acc38 100644 --- a/arch/s390/kernel/dumpstack.c +++ b/arch/s390/kernel/dumpstack.c @@ -74,6 +74,8 @@ __show_trace(unsigned long sp, unsigned long low, unsigned long high) static void show_trace(struct task_struct *task, unsigned long *stack) { + const unsigned long frame_size = + STACK_FRAME_OVERHEAD + sizeof(struct pt_regs); register unsigned long __r15 asm ("15"); unsigned long sp; @@ -82,11 +84,13 @@ static void show_trace(struct task_struct *task, unsigned long *stack) sp = task ? task->thread.ksp : __r15; printk("Call Trace:\n"); #ifdef CONFIG_CHECK_STACK - sp = __show_trace(sp, S390_lowcore.panic_stack - 4096, - S390_lowcore.panic_stack); + sp = __show_trace(sp, + S390_lowcore.panic_stack + frame_size - 4096, + S390_lowcore.panic_stack + frame_size); #endif - sp = __show_trace(sp, S390_lowcore.async_stack - ASYNC_SIZE, - S390_lowcore.async_stack); + sp = __show_trace(sp, + S390_lowcore.async_stack + frame_size - ASYNC_SIZE, + S390_lowcore.async_stack + frame_size); if (task) __show_trace(sp, (unsigned long) task_stack_page(task), (unsigned long) task_stack_page(task) + THREAD_SIZE); diff --git a/arch/s390/kernel/entry.S b/arch/s390/kernel/entry.S index 4d5e6f8..be7a408 100644 --- a/arch/s390/kernel/entry.S +++ b/arch/s390/kernel/entry.S @@ -429,11 +429,19 @@ io_skip: stm %r0,%r7,__PT_R0(%r11) mvc __PT_R8(32,%r11),__LC_SAVE_AREA_ASYNC stm %r8,%r9,__PT_PSW(%r11) + mvc __PT_INT_CODE(12,%r11),__LC_SUBCHANNEL_ID TRACE_IRQS_OFF xc __SF_BACKCHAIN(4,%r15),__SF_BACKCHAIN(%r15) +io_loop: l %r1,BASED(.Ldo_IRQ) lr %r2,%r11 # pass pointer to pt_regs basr %r14,%r1 # call do_IRQ + tm __LC_MACHINE_FLAGS+2,0x10 # MACHINE_FLAG_LPAR + jz io_return + tpi 0 + jz io_return + mvc __PT_INT_CODE(12,%r11),__LC_SUBCHANNEL_ID + j io_loop io_return: LOCKDEP_SYS_EXIT TRACE_IRQS_ON @@ -573,10 +581,10 @@ ext_skip: stm %r0,%r7,__PT_R0(%r11) mvc __PT_R8(32,%r11),__LC_SAVE_AREA_ASYNC stm %r8,%r9,__PT_PSW(%r11) + mvc __PT_INT_CODE(4,%r11),__LC_EXT_CPU_ADDR + mvc __PT_INT_PARM(4,%r11),__LC_EXT_PARAMS TRACE_IRQS_OFF lr %r2,%r11 # pass pointer to pt_regs - l %r3,__LC_EXT_CPU_ADDR # get cpu address + interruption code - l %r4,__LC_EXT_PARAMS # get external parameters l %r1,BASED(.Ldo_extint) basr %r14,%r1 # call do_extint j io_return diff --git a/arch/s390/kernel/entry.h b/arch/s390/kernel/entry.h index aa0ab02..3ddbc26 100644 --- a/arch/s390/kernel/entry.h +++ b/arch/s390/kernel/entry.h @@ -54,7 +54,7 @@ void handle_signal32(unsigned long sig, struct k_sigaction *ka, void do_notify_resume(struct pt_regs *regs); struct ext_code; -void do_extint(struct pt_regs *regs, struct ext_code, unsigned int, unsigned long); +void do_extint(struct pt_regs *regs); void do_restart(void); void __init startup_init(void); void die(struct pt_regs *regs, const char *str); diff --git a/arch/s390/kernel/entry64.S b/arch/s390/kernel/entry64.S index b094ced..1c039d0 100644 --- a/arch/s390/kernel/entry64.S +++ b/arch/s390/kernel/entry64.S @@ -463,10 +463,18 @@ io_skip: stmg %r0,%r7,__PT_R0(%r11) mvc __PT_R8(64,%r11),__LC_SAVE_AREA_ASYNC stmg %r8,%r9,__PT_PSW(%r11) + mvc __PT_INT_CODE(12,%r11),__LC_SUBCHANNEL_ID TRACE_IRQS_OFF xc __SF_BACKCHAIN(8,%r15),__SF_BACKCHAIN(%r15) +io_loop: lgr %r2,%r11 # pass pointer to pt_regs brasl %r14,do_IRQ + tm __LC_MACHINE_FLAGS+6,0x10 # MACHINE_FLAG_LPAR + jz io_return + tpi 0 + jz io_return + mvc __PT_INT_CODE(12,%r11),__LC_SUBCHANNEL_ID + j io_loop io_return: LOCKDEP_SYS_EXIT TRACE_IRQS_ON @@ -608,13 +616,13 @@ ext_skip: stmg %r0,%r7,__PT_R0(%r11) mvc __PT_R8(64,%r11),__LC_SAVE_AREA_ASYNC stmg %r8,%r9,__PT_PSW(%r11) + lghi %r1,__LC_EXT_PARAMS2 + mvc __PT_INT_CODE(4,%r11),__LC_EXT_CPU_ADDR + mvc __PT_INT_PARM(4,%r11),__LC_EXT_PARAMS + mvc __PT_INT_PARM_LONG(8,%r11),0(%r1) TRACE_IRQS_OFF xc __SF_BACKCHAIN(8,%r15),__SF_BACKCHAIN(%r15) - lghi %r1,4096 lgr %r2,%r11 # pass pointer to pt_regs - llgf %r3,__LC_EXT_CPU_ADDR # get cpu address + interruption code - llgf %r4,__LC_EXT_PARAMS # get external parameter - lg %r5,__LC_EXT_PARAMS2-4096(%r1) # get 64 bit external parameter brasl %r14,do_extint j io_return diff --git a/arch/s390/kernel/ftrace.c b/arch/s390/kernel/ftrace.c index 78bdf0e..e3043ae 100644 --- a/arch/s390/kernel/ftrace.c +++ b/arch/s390/kernel/ftrace.c @@ -16,12 +16,6 @@ #include <trace/syscall.h> #include <asm/asm-offsets.h> -#ifdef CONFIG_64BIT -#define MCOUNT_OFFSET_RET 12 -#else -#define MCOUNT_OFFSET_RET 22 -#endif - #ifdef CONFIG_DYNAMIC_FTRACE void ftrace_disable_code(void); @@ -155,9 +149,10 @@ unsigned long __kprobes prepare_ftrace_return(unsigned long parent, if (unlikely(atomic_read(¤t->tracing_graph_pause))) goto out; + ip = (ip & PSW_ADDR_INSN) - MCOUNT_INSN_SIZE; if (ftrace_push_return_trace(parent, ip, &trace.depth, 0) == -EBUSY) goto out; - trace.func = (ip & PSW_ADDR_INSN) - MCOUNT_OFFSET_RET; + trace.func = ip; /* Only trace if the calling function expects to. */ if (!ftrace_graph_entry(&trace)) { current->curr_ret_stack--; diff --git a/arch/s390/kernel/ipl.c b/arch/s390/kernel/ipl.c index d8a6a38..feb719d 100644 --- a/arch/s390/kernel/ipl.c +++ b/arch/s390/kernel/ipl.c @@ -754,9 +754,9 @@ static struct bin_attribute sys_reipl_fcp_scp_data_attr = { .write = reipl_fcp_scpdata_write, }; -DEFINE_IPL_ATTR_RW(reipl_fcp, wwpn, "0x%016llx\n", "%016llx\n", +DEFINE_IPL_ATTR_RW(reipl_fcp, wwpn, "0x%016llx\n", "%llx\n", reipl_block_fcp->ipl_info.fcp.wwpn); -DEFINE_IPL_ATTR_RW(reipl_fcp, lun, "0x%016llx\n", "%016llx\n", +DEFINE_IPL_ATTR_RW(reipl_fcp, lun, "0x%016llx\n", "%llx\n", reipl_block_fcp->ipl_info.fcp.lun); DEFINE_IPL_ATTR_RW(reipl_fcp, bootprog, "%lld\n", "%lld\n", reipl_block_fcp->ipl_info.fcp.bootprog); @@ -1323,9 +1323,9 @@ static struct shutdown_action __refdata reipl_action = { /* FCP dump device attributes */ -DEFINE_IPL_ATTR_RW(dump_fcp, wwpn, "0x%016llx\n", "%016llx\n", +DEFINE_IPL_ATTR_RW(dump_fcp, wwpn, "0x%016llx\n", "%llx\n", dump_block_fcp->ipl_info.fcp.wwpn); -DEFINE_IPL_ATTR_RW(dump_fcp, lun, "0x%016llx\n", "%016llx\n", +DEFINE_IPL_ATTR_RW(dump_fcp, lun, "0x%016llx\n", "%llx\n", dump_block_fcp->ipl_info.fcp.lun); DEFINE_IPL_ATTR_RW(dump_fcp, bootprog, "%lld\n", "%lld\n", dump_block_fcp->ipl_info.fcp.bootprog); diff --git a/arch/s390/kernel/irq.c b/arch/s390/kernel/irq.c index f7fb589..54b0995 100644 --- a/arch/s390/kernel/irq.c +++ b/arch/s390/kernel/irq.c @@ -234,9 +234,9 @@ int unregister_external_interrupt(u16 code, ext_int_handler_t handler) } EXPORT_SYMBOL(unregister_external_interrupt); -void __irq_entry do_extint(struct pt_regs *regs, struct ext_code ext_code, - unsigned int param32, unsigned long param64) +void __irq_entry do_extint(struct pt_regs *regs) { + struct ext_code ext_code; struct pt_regs *old_regs; struct ext_int_info *p; int index; @@ -248,6 +248,7 @@ void __irq_entry do_extint(struct pt_regs *regs, struct ext_code ext_code, clock_comparator_work(); } kstat_incr_irqs_this_cpu(EXTERNAL_INTERRUPT, NULL); + ext_code = *(struct ext_code *) ®s->int_code; if (ext_code.code != 0x1004) __get_cpu_var(s390_idle).nohz_delay = 1; @@ -255,7 +256,8 @@ void __irq_entry do_extint(struct pt_regs *regs, struct ext_code ext_code, rcu_read_lock(); list_for_each_entry_rcu(p, &ext_int_hash[index], entry) if (likely(p->code == ext_code.code)) - p->handler(ext_code, param32, param64); + p->handler(ext_code, regs->int_parm, + regs->int_parm_long); rcu_read_unlock(); irq_exit(); set_irq_regs(old_regs); @@ -311,3 +313,69 @@ void measurement_alert_subclass_unregister(void) spin_unlock(&ma_subclass_lock); } EXPORT_SYMBOL(measurement_alert_subclass_unregister); + +#ifdef CONFIG_SMP +void synchronize_irq(unsigned int irq) +{ + /* + * Not needed, the handler is protected by a lock and IRQs that occur + * after the handler is deleted are just NOPs. + */ +} +EXPORT_SYMBOL_GPL(synchronize_irq); +#endif + +#ifndef CONFIG_PCI + +/* Only PCI devices have dynamically-defined IRQ handlers */ + +int request_irq(unsigned int irq, irq_handler_t handler, + unsigned long irqflags, const char *devname, void *dev_id) +{ + return -EINVAL; +} +EXPORT_SYMBOL_GPL(request_irq); + +void free_irq(unsigned int irq, void *dev_id) +{ + WARN_ON(1); +} +EXPORT_SYMBOL_GPL(free_irq); + +void enable_irq(unsigned int irq) +{ + WARN_ON(1); +} +EXPORT_SYMBOL_GPL(enable_irq); + +void disable_irq(unsigned int irq) +{ + WARN_ON(1); +} +EXPORT_SYMBOL_GPL(disable_irq); + +#endif /* !CONFIG_PCI */ + +void disable_irq_nosync(unsigned int irq) +{ + disable_irq(irq); +} +EXPORT_SYMBOL_GPL(disable_irq_nosync); + +unsigned long probe_irq_on(void) +{ + return 0; +} +EXPORT_SYMBOL_GPL(probe_irq_on); + +int probe_irq_off(unsigned long val) +{ + return 0; +} +EXPORT_SYMBOL_GPL(probe_irq_off); + +unsigned int probe_irq_mask(unsigned long val) +{ + return val; +} +EXPORT_SYMBOL_GPL(probe_irq_mask); diff --git a/arch/s390/kernel/mcount.S b/arch/s390/kernel/mcount.S index 4567ce2..08dcf21 100644 --- a/arch/s390/kernel/mcount.S +++ b/arch/s390/kernel/mcount.S @@ -7,6 +7,7 @@ #include <linux/linkage.h> #include <asm/asm-offsets.h> +#include <asm/ftrace.h> .section .kprobes.text, "ax" @@ -33,6 +34,7 @@ ENTRY(ftrace_caller) la %r2,0(%r14) st %r0,__SF_BACKCHAIN(%r15) la %r3,0(%r3) + ahi %r2,-MCOUNT_INSN_SIZE l %r14,0b-0b(%r1) l %r14,0(%r14) basr %r14,%r14 diff --git a/arch/s390/kernel/mcount64.S b/arch/s390/kernel/mcount64.S index 1133219..1c52eae 100644 --- a/arch/s390/kernel/mcount64.S +++ b/arch/s390/kernel/mcount64.S @@ -7,6 +7,7 @@ #include <linux/linkage.h> #include <asm/asm-offsets.h> +#include <asm/ftrace.h> .section .kprobes.text, "ax" @@ -29,6 +30,7 @@ ENTRY(ftrace_caller) stg %r1,__SF_BACKCHAIN(%r15) lgr %r2,%r14 lg %r3,168(%r15) + aghi %r2,-MCOUNT_INSN_SIZE larl %r14,ftrace_trace_function lg %r14,0(%r14) basr %r14,%r14 diff --git a/arch/s390/kernel/sclp.S b/arch/s390/kernel/sclp.S index b6506ee..29bd7be 100644 --- a/arch/s390/kernel/sclp.S +++ b/arch/s390/kernel/sclp.S @@ -225,7 +225,7 @@ _sclp_print: ahi %r2,1 ltr %r0,%r0 # end of string? jz .LfinalizemtoS4 - chi %r0,0x15 # end of line (NL)? + chi %r0,0x0a # end of line (NL)? jz .LfinalizemtoS4 stc %r0,0(%r6,%r7) # copy to mto la %r11,0(%r6,%r7) diff --git a/arch/s390/kernel/smp.c b/arch/s390/kernel/smp.c index 8074cb4..15a016c 100644 --- a/arch/s390/kernel/smp.c +++ b/arch/s390/kernel/smp.c @@ -49,7 +49,6 @@ enum { ec_schedule = 0, - ec_call_function, ec_call_function_single, ec_stop_cpu, }; @@ -428,34 +427,25 @@ void smp_stop_cpu(void) * This is the main routine where commands issued by other * cpus are handled. */ -static void do_ext_call_interrupt(struct ext_code ext_code, - unsigned int param32, unsigned long param64) +static void smp_handle_ext_call(void) { unsigned long bits; - int cpu; - - cpu = smp_processor_id(); - if (ext_code.code == 0x1202) - inc_irq_stat(IRQEXT_EXC); - else - inc_irq_stat(IRQEXT_EMS); - /* - * handle bit signal external calls - */ - bits = xchg(&pcpu_devices[cpu].ec_mask, 0); + /* handle bit signal external calls */ + bits = xchg(&pcpu_devices[smp_processor_id()].ec_mask, 0); if (test_bit(ec_stop_cpu, &bits)) smp_stop_cpu(); - if (test_bit(ec_schedule, &bits)) scheduler_ipi(); - - if (test_bit(ec_call_function, &bits)) - generic_smp_call_function_interrupt(); - if (test_bit(ec_call_function_single, &bits)) generic_smp_call_function_single_interrupt(); +} +static void do_ext_call_interrupt(struct ext_code ext_code, + unsigned int param32, unsigned long param64) +{ + inc_irq_stat(ext_code.code == 0x1202 ? IRQEXT_EXC : IRQEXT_EMS); + smp_handle_ext_call(); } void arch_send_call_function_ipi_mask(const struct cpumask *mask) @@ -463,7 +453,7 @@ void arch_send_call_function_ipi_mask(const struct cpumask *mask) int cpu; for_each_cpu(cpu, mask) - pcpu_ec_call(pcpu_devices + cpu, ec_call_function); + pcpu_ec_call(pcpu_devices + cpu, ec_call_function_single); } void arch_send_call_function_single_ipi(int cpu) @@ -645,7 +635,7 @@ static int __cpuinit __smp_rescan_cpus(struct sclp_cpu_info *info, continue; pcpu = pcpu_devices + cpu; pcpu->address = info->cpu[i].address; - pcpu->state = (cpu >= info->configured) ? + pcpu->state = (i >= info->configured) ? CPU_STATE_STANDBY : CPU_STATE_CONFIGURED; smp_cpu_set_polarization(cpu, POLARIZATION_UNKNOWN); set_cpu_present(cpu, true); @@ -760,6 +750,8 @@ int __cpu_disable(void) { unsigned long cregs[16]; + /* Handle possible pending IPIs */ + smp_handle_ext_call(); set_cpu_online(smp_processor_id(), false); /* Disable pseudo page faults on this cpu. */ pfault_fini(); diff --git a/arch/s390/mm/mem_detect.c b/arch/s390/mm/mem_detect.c index 3cbd3b8..cca3882 100644 --- a/arch/s390/mm/mem_detect.c +++ b/arch/s390/mm/mem_detect.c @@ -123,7 +123,8 @@ void create_mem_hole(struct mem_chunk mem_chunk[], unsigned long addr, continue; } else if ((addr <= chunk->addr) && (addr + size >= chunk->addr + chunk->size)) { - memset(chunk, 0 , sizeof(*chunk)); + memmove(chunk, chunk + 1, (MEMORY_CHUNKS-i-1) * sizeof(*chunk)); + memset(&mem_chunk[MEMORY_CHUNKS-1], 0, sizeof(*chunk)); } else if (addr + size < chunk->addr + chunk->size) { chunk->size = chunk->addr + chunk->size - addr - size; chunk->addr = addr + size; diff --git a/arch/s390/mm/pgtable.c b/arch/s390/mm/pgtable.c index 44b1450..17bf4d3 100644 --- a/arch/s390/mm/pgtable.c +++ b/arch/s390/mm/pgtable.c @@ -492,7 +492,7 @@ static int gmap_connect_pgtable(unsigned long address, unsigned long segment, mp = (struct gmap_pgtable *) page->index; rmap->gmap = gmap; rmap->entry = segment_ptr; - rmap->vmaddr = address; + rmap->vmaddr = address & PMD_MASK; spin_lock(&mm->page_table_lock); if (*segment_ptr == segment) { list_add(&rmap->list, &mp->mapper); diff --git a/arch/s390/oprofile/hwsampler.h b/arch/s390/oprofile/hwsampler.h index 1912f3b..0022e1e 100644 --- a/arch/s390/oprofile/hwsampler.h +++ b/arch/s390/oprofile/hwsampler.h @@ -81,8 +81,8 @@ struct hws_data_entry { unsigned int:16; unsigned int prim_asn:16; /* primary ASN */ unsigned long long ia; /* Instruction Address */ - unsigned long long lpp; /* Logical-Partition Program Param. */ - unsigned long long vpp; /* Virtual-Machine Program Param. */ + unsigned long long gpp; /* Guest Program Parameter */ + unsigned long long hpp; /* Host Program Parameter */ }; struct hws_trailer_entry { diff --git a/arch/s390/pci/pci.c b/arch/s390/pci/pci.c index e6f15b5..e2956ad 100644 --- a/arch/s390/pci/pci.c +++ b/arch/s390/pci/pci.c @@ -82,10 +82,13 @@ struct intr_bucket { static struct intr_bucket *bucket; -/* Adapter local summary indicator */ -static u8 *zpci_irq_si; +/* Adapter interrupt definitions */ +static void zpci_irq_handler(struct airq_struct *airq); -static atomic_t irq_retries = ATOMIC_INIT(0); +static struct airq_struct zpci_airq = { + .handler = zpci_irq_handler, + .isc = PCI_ISC, +}; /* I/O Map */ static DEFINE_SPINLOCK(zpci_iomap_lock); @@ -302,15 +305,6 @@ static int zpci_cfg_store(struct zpci_dev *zdev, int offset, u32 val, u8 len) return rc; } -void synchronize_irq(unsigned int irq) -{ - /* - * Not needed, the handler is protected by a lock and IRQs that occur - * after the handler is deleted are just NOPs. - */ -} -EXPORT_SYMBOL_GPL(synchronize_irq); - void enable_irq(unsigned int irq) { struct msi_desc *msi = irq_get_msi_desc(irq); @@ -327,30 +321,6 @@ void disable_irq(unsigned int irq) } EXPORT_SYMBOL_GPL(disable_irq); -void disable_irq_nosync(unsigned int irq) -{ - disable_irq(irq); -} -EXPORT_SYMBOL_GPL(disable_irq_nosync); - -unsigned long probe_irq_on(void) -{ - return 0; -} -EXPORT_SYMBOL_GPL(probe_irq_on); - -int probe_irq_off(unsigned long val) -{ - return 0; -} -EXPORT_SYMBOL_GPL(probe_irq_off); - -unsigned int probe_irq_mask(unsigned long val) -{ - return val; -} -EXPORT_SYMBOL_GPL(probe_irq_mask); - void pcibios_fixup_bus(struct pci_bus *bus) { } @@ -437,7 +407,7 @@ static struct pci_ops pci_root_ops = { /* store the last handled bit to implement fair scheduling of devices */ static DEFINE_PER_CPU(unsigned long, next_sbit); -static void zpci_irq_handler(void *dont, void *need) +static void zpci_irq_handler(struct airq_struct *airq) { unsigned long sbit, mbit, last = 0, start = __get_cpu_var(next_sbit); int rescan = 0, max = aisb_max; @@ -485,7 +455,6 @@ scan: max = aisb_max; sbit = find_first_bit_left(bucket->aisb, max); if (sbit != max) { - atomic_inc(&irq_retries); rescan++; goto scan; } @@ -598,7 +567,21 @@ static void zpci_map_resources(struct zpci_dev *zdev) pr_debug("BAR%i: -> start: %Lx end: %Lx\n", i, pdev->resource[i].start, pdev->resource[i].end); } -}; +} + +static void zpci_unmap_resources(struct zpci_dev *zdev) +{ + struct pci_dev *pdev = zdev->pdev; + resource_size_t len; + int i; + + for (i = 0; i < PCI_BAR_COUNT; i++) { + len = pci_resource_len(pdev, i); + if (!len) + continue; + pci_iounmap(pdev, (void *) pdev->resource[i].start); + } +} struct zpci_dev *zpci_alloc_device(void) { @@ -734,25 +717,20 @@ static int __init zpci_irq_init(void) goto out_alloc; } - isc_register(PCI_ISC); - zpci_irq_si = s390_register_adapter_interrupt(&zpci_irq_handler, NULL, PCI_ISC); - if (IS_ERR(zpci_irq_si)) { - rc = PTR_ERR(zpci_irq_si); - zpci_irq_si = NULL; + rc = register_adapter_interrupt(&zpci_airq); + if (rc) goto out_ai; - } + /* Set summary to 1 to be called every time for the ISC. */ + *zpci_airq.lsi_ptr = 1; for_each_online_cpu(cpu) per_cpu(next_sbit, cpu) = 0; spin_lock_init(&bucket->lock); - /* set summary to 1 to be called every time for the ISC */ - *zpci_irq_si = 1; set_irq_ctrl(SIC_IRQ_MODE_SINGLE, NULL, PCI_ISC); return 0; out_ai: - isc_unregister(PCI_ISC); free_page((unsigned long) bucket->alloc); out_alloc: free_page((unsigned long) bucket->aisb); @@ -765,21 +743,10 @@ static void zpci_irq_exit(void) { free_page((unsigned long) bucket->alloc); free_page((unsigned long) bucket->aisb); - s390_unregister_adapter_interrupt(zpci_irq_si, PCI_ISC); - isc_unregister(PCI_ISC); + unregister_adapter_interrupt(&zpci_airq); kfree(bucket); } -void zpci_debug_info(struct zpci_dev *zdev, struct seq_file *m) -{ - if (!zdev) - return; - - seq_printf(m, "global irq retries: %u\n", atomic_read(&irq_retries)); - seq_printf(m, "aibv[0]:%016lx aibv[1]:%016lx aisb:%016lx\n", - get_imap(0)->aibv, get_imap(1)->aibv, *bucket->aisb); -} - static struct resource *zpci_alloc_bus_resource(unsigned long start, unsigned long size, unsigned long flags, int domain) { @@ -843,6 +810,16 @@ int pcibios_add_device(struct pci_dev *pdev) return 0; } +void pcibios_release_device(struct pci_dev *pdev) +{ + struct zpci_dev *zdev = get_zdev(pdev); + + zpci_unmap_resources(zdev); + zpci_fmb_disable_device(zdev); + zpci_debug_exit_device(zdev); + zdev->pdev = NULL; +} + static int zpci_scan_bus(struct zpci_dev *zdev) { struct resource *res; @@ -983,25 +960,6 @@ void zpci_stop_device(struct zpci_dev *zdev) } EXPORT_SYMBOL_GPL(zpci_stop_device); -int zpci_scan_device(struct zpci_dev *zdev) -{ - zdev->pdev = pci_scan_single_device(zdev->bus, ZPCI_DEVFN); - if (!zdev->pdev) { - pr_err("pci_scan_single_device failed for fid: 0x%x\n", - zdev->fid); - goto out; - } - - pci_bus_add_devices(zdev->bus); - - return 0; -out: - zpci_dma_exit_device(zdev); - clp_disable_fh(zdev); - return -EIO; -} -EXPORT_SYMBOL_GPL(zpci_scan_device); - static inline int barsize(u8 size) { return (size) ? (1 << size) >> 10 : 0; diff --git a/arch/s390/pci/pci_clp.c b/arch/s390/pci/pci_clp.c index bd34359..2e95396 100644 --- a/arch/s390/pci/pci_clp.c +++ b/arch/s390/pci/pci_clp.c @@ -236,7 +236,6 @@ int clp_disable_fh(struct zpci_dev *zdev) if (!zdev_enabled(zdev)) return 0; - dev_info(&zdev->pdev->dev, "disabling fn handle: 0x%x\n", fh); rc = clp_set_pci_fn(&fh, 0, CLP_SET_DISABLE_PCI_FN); if (!rc) /* Success -> store disabled handle in zdev */ diff --git a/arch/s390/pci/pci_debug.c b/arch/s390/pci/pci_debug.c index 771b823..75c69b4 100644 --- a/arch/s390/pci/pci_debug.c +++ b/arch/s390/pci/pci_debug.c @@ -115,27 +115,6 @@ static const struct file_operations debugfs_pci_perf_fops = { .release = single_release, }; -static int pci_debug_show(struct seq_file *m, void *v) -{ - struct zpci_dev *zdev = m->private; - - zpci_debug_info(zdev, m); - return 0; -} - -static int pci_debug_seq_open(struct inode *inode, struct file *filp) -{ - return single_open(filp, pci_debug_show, - file_inode(filp)->i_private); -} - -static const struct file_operations debugfs_pci_debug_fops = { - .open = pci_debug_seq_open, - .read = seq_read, - .llseek = seq_lseek, - .release = single_release, -}; - void zpci_debug_init_device(struct zpci_dev *zdev) { zdev->debugfs_dev = debugfs_create_dir(dev_name(&zdev->pdev->dev), @@ -149,19 +128,11 @@ void zpci_debug_init_device(struct zpci_dev *zdev) &debugfs_pci_perf_fops); if (IS_ERR(zdev->debugfs_perf)) zdev->debugfs_perf = NULL; - - zdev->debugfs_debug = debugfs_create_file("debug", - S_IFREG | S_IRUGO | S_IWUSR, - zdev->debugfs_dev, zdev, - &debugfs_pci_debug_fops); - if (IS_ERR(zdev->debugfs_debug)) - zdev->debugfs_debug = NULL; } void zpci_debug_exit_device(struct zpci_dev *zdev) { debugfs_remove(zdev->debugfs_perf); - debugfs_remove(zdev->debugfs_debug); debugfs_remove(zdev->debugfs_dev); } diff --git a/arch/s390/pci/pci_dma.c b/arch/s390/pci/pci_dma.c index f8e69d5..a2343c1 100644 --- a/arch/s390/pci/pci_dma.c +++ b/arch/s390/pci/pci_dma.c @@ -263,7 +263,7 @@ static dma_addr_t s390_dma_map_pages(struct device *dev, struct page *page, enum dma_data_direction direction, struct dma_attrs *attrs) { - struct zpci_dev *zdev = get_zdev(container_of(dev, struct pci_dev, dev)); + struct zpci_dev *zdev = get_zdev(to_pci_dev(dev)); unsigned long nr_pages, iommu_page_index; unsigned long pa = page_to_phys(page) + offset; int flags = ZPCI_PTE_VALID; @@ -304,7 +304,7 @@ static void s390_dma_unmap_pages(struct device *dev, dma_addr_t dma_addr, size_t size, enum dma_data_direction direction, struct dma_attrs *attrs) { - struct zpci_dev *zdev = get_zdev(container_of(dev, struct pci_dev, dev)); + struct zpci_dev *zdev = get_zdev(to_pci_dev(dev)); unsigned long iommu_page_index; int npages; @@ -323,7 +323,7 @@ static void *s390_dma_alloc(struct device *dev, size_t size, dma_addr_t *dma_handle, gfp_t flag, struct dma_attrs *attrs) { - struct zpci_dev *zdev = get_zdev(container_of(dev, struct pci_dev, dev)); + struct zpci_dev *zdev = get_zdev(to_pci_dev(dev)); struct page *page; unsigned long pa; dma_addr_t map; diff --git a/arch/s390/pci/pci_sysfs.c b/arch/s390/pci/pci_sysfs.c index a42cce6..e99a255 100644 --- a/arch/s390/pci/pci_sysfs.c +++ b/arch/s390/pci/pci_sysfs.c @@ -15,40 +15,36 @@ static ssize_t show_fid(struct device *dev, struct device_attribute *attr, char *buf) { - struct zpci_dev *zdev = get_zdev(container_of(dev, struct pci_dev, dev)); + struct zpci_dev *zdev = get_zdev(to_pci_dev(dev)); - sprintf(buf, "0x%08x\n", zdev->fid); - return strlen(buf); + return sprintf(buf, "0x%08x\n", zdev->fid); } static DEVICE_ATTR(function_id, S_IRUGO, show_fid, NULL); static ssize_t show_fh(struct device *dev, struct device_attribute *attr, char *buf) { - struct zpci_dev *zdev = get_zdev(container_of(dev, struct pci_dev, dev)); + struct zpci_dev *zdev = get_zdev(to_pci_dev(dev)); - sprintf(buf, "0x%08x\n", zdev->fh); - return strlen(buf); + return sprintf(buf, "0x%08x\n", zdev->fh); } static DEVICE_ATTR(function_handle, S_IRUGO, show_fh, NULL); static ssize_t show_pchid(struct device *dev, struct device_attribute *attr, char *buf) { - struct zpci_dev *zdev = get_zdev(container_of(dev, struct pci_dev, dev)); + struct zpci_dev *zdev = get_zdev(to_pci_dev(dev)); - sprintf(buf, "0x%04x\n", zdev->pchid); - return strlen(buf); + return sprintf(buf, "0x%04x\n", zdev->pchid); } static DEVICE_ATTR(pchid, S_IRUGO, show_pchid, NULL); static ssize_t show_pfgid(struct device *dev, struct device_attribute *attr, char *buf) { - struct zpci_dev *zdev = get_zdev(container_of(dev, struct pci_dev, dev)); + struct zpci_dev *zdev = get_zdev(to_pci_dev(dev)); - sprintf(buf, "0x%02x\n", zdev->pfgid); - return strlen(buf); + return sprintf(buf, "0x%02x\n", zdev->pfgid); } static DEVICE_ATTR(pfgid, S_IRUGO, show_pfgid, NULL); |