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-rw-r--r--MAINTAINERS2
-rw-r--r--arch/s390/Kconfig113
-rw-r--r--arch/s390/appldata/appldata_mem.c2
-rw-r--r--arch/s390/appldata/appldata_net_sum.c2
-rw-r--r--arch/s390/appldata/appldata_os.c2
-rw-r--r--arch/s390/hypfs/hypfs_vm.c2
-rw-r--r--arch/s390/include/asm/barrier.h9
-rw-r--r--arch/s390/include/asm/clp.h2
-rw-r--r--arch/s390/include/asm/cpu_mf.h4
-rw-r--r--arch/s390/include/asm/dma-mapping.h8
-rw-r--r--arch/s390/include/asm/mman.h4
-rw-r--r--arch/s390/include/asm/page.h22
-rw-r--r--arch/s390/include/asm/pci.h11
-rw-r--r--arch/s390/include/asm/pgtable.h132
-rw-r--r--arch/s390/include/asm/sclp.h1
-rw-r--r--arch/s390/include/asm/setup.h22
-rw-r--r--arch/s390/include/asm/timex.h18
-rw-r--r--arch/s390/kernel/debug.c2
-rw-r--r--arch/s390/kernel/dis.c1
-rw-r--r--arch/s390/kernel/early.c8
-rw-r--r--arch/s390/kernel/entry64.S10
-rw-r--r--arch/s390/kernel/ipl.c16
-rw-r--r--arch/s390/kernel/module.c143
-rw-r--r--arch/s390/kernel/nmi.c2
-rw-r--r--arch/s390/kernel/perf_cpum_cf.c13
-rw-r--r--arch/s390/kernel/smp.c10
-rw-r--r--arch/s390/kernel/time.c26
-rw-r--r--arch/s390/kernel/vmlinux.lds.S4
-rw-r--r--arch/s390/kernel/vtime.c2
-rw-r--r--arch/s390/kvm/interrupt.c6
-rw-r--r--arch/s390/kvm/kvm-s390.c2
-rw-r--r--arch/s390/lib/delay.c16
-rw-r--r--arch/s390/lib/uaccess_pt.c2
-rw-r--r--arch/s390/mm/mmap.c9
-rw-r--r--arch/s390/mm/pageattr.c2
-rw-r--r--arch/s390/mm/vmem.c24
-rw-r--r--arch/s390/net/bpf_jit_comp.c21
-rw-r--r--arch/s390/pci/pci.c35
-rw-r--r--arch/s390/pci/pci_clp.c14
-rw-r--r--drivers/ata/Kconfig2
-rw-r--r--drivers/gpio/Kconfig4
-rw-r--r--drivers/media/radio/Kconfig2
-rw-r--r--drivers/net/ethernet/cadence/Kconfig1
-rw-r--r--drivers/net/phy/Kconfig1
-rw-r--r--drivers/parport/Kconfig2
-rw-r--r--drivers/pci/hotplug/s390_pci_hpc.c60
-rw-r--r--drivers/s390/block/dasd.c23
-rw-r--r--drivers/s390/block/dasd_3990_erp.c8
-rw-r--r--drivers/s390/block/dasd_alias.c4
-rw-r--r--drivers/s390/block/dasd_diag.c10
-rw-r--r--drivers/s390/block/dasd_eckd.c30
-rw-r--r--drivers/s390/block/dasd_eer.c2
-rw-r--r--drivers/s390/block/dasd_erp.c4
-rw-r--r--drivers/s390/block/dasd_fba.c2
-rw-r--r--drivers/s390/block/scm_blk.h41
-rw-r--r--drivers/s390/char/fs3270.c29
-rw-r--r--drivers/s390/char/raw3270.c611
-rw-r--r--drivers/s390/char/raw3270.h12
-rw-r--r--drivers/s390/char/sclp.c4
-rw-r--r--drivers/s390/char/sclp_cmd.c10
-rw-r--r--drivers/s390/char/tty3270.c187
-rw-r--r--drivers/s390/char/zcore.c64
-rw-r--r--drivers/s390/cio/chsc.c68
-rw-r--r--drivers/s390/cio/chsc.h2
-rw-r--r--drivers/s390/cio/cio.c4
-rw-r--r--drivers/s390/cio/cmf.c6
-rw-r--r--drivers/s390/cio/css.c2
-rw-r--r--drivers/s390/cio/device.c10
-rw-r--r--drivers/s390/cio/device_fsm.c2
-rw-r--r--drivers/s390/cio/device_pgid.c123
-rw-r--r--drivers/s390/cio/io_sch.h5
-rw-r--r--drivers/s390/cio/qdio_main.c12
-rw-r--r--drivers/s390/net/qeth_core.h2
-rw-r--r--drivers/s390/scsi/zfcp_fsf.c2
-rw-r--r--drivers/s390/scsi/zfcp_qdio.c2
-rw-r--r--drivers/tty/tty_io.c1
-rw-r--r--drivers/uio/Kconfig1
-rw-r--r--include/asm-generic/io.h20
-rw-r--r--include/asm-generic/pgtable.h10
-rw-r--r--include/linux/page-flags.h8
-rw-r--r--mm/rmap.c24
-rw-r--r--net/iucv/iucv.c5
82 files changed, 1216 insertions, 930 deletions
diff --git a/MAINTAINERS b/MAINTAINERS
index db061e961d3..73b7d50c940 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -6519,7 +6519,7 @@ S: Supported
F: drivers/s390/net/
S390 ZCRYPT DRIVER
-M: Holger Dengler <hd@linux.vnet.ibm.com>
+M: Ingo Tuchscherer <ingo.tuchscherer@de.ibm.com>
M: linux390@de.ibm.com
L: linux-s390@vger.kernel.org
W: http://www.ibm.com/developerworks/linux/linux390/
diff --git a/arch/s390/Kconfig b/arch/s390/Kconfig
index 27c91c38d1a..b220e152aef 100644
--- a/arch/s390/Kconfig
+++ b/arch/s390/Kconfig
@@ -60,85 +60,86 @@ config PCI_QUIRKS
config S390
def_bool y
- select USE_GENERIC_SMP_HELPERS if SMP
- select GENERIC_CPU_DEVICES if !SMP
- select HAVE_SYSCALL_WRAPPERS
- select HAVE_FUNCTION_TRACER
- select HAVE_FUNCTION_TRACE_MCOUNT_TEST
- select HAVE_FTRACE_MCOUNT_RECORD
- select HAVE_C_RECORDMCOUNT
- select HAVE_SYSCALL_TRACEPOINTS
- select SYSCTL_EXCEPTION_TRACE
- select HAVE_DYNAMIC_FTRACE
- select HAVE_FUNCTION_GRAPH_TRACER
- select HAVE_REGS_AND_STACK_ACCESS_API
- select HAVE_OPROFILE
- select HAVE_KPROBES
- select HAVE_KRETPROBES
- select HAVE_KVM if 64BIT
- select HAVE_ARCH_TRACEHOOK
- select INIT_ALL_POSSIBLE
- select HAVE_PERF_EVENTS
- select ARCH_HAVE_NMI_SAFE_CMPXCHG
- select HAVE_DEBUG_KMEMLEAK
- select HAVE_KERNEL_GZIP
- select HAVE_KERNEL_BZIP2
- select HAVE_KERNEL_LZMA
- select HAVE_KERNEL_LZO
- select HAVE_KERNEL_XZ
- select HAVE_ARCH_MUTEX_CPU_RELAX
- select HAVE_ARCH_JUMP_LABEL if !MARCH_G5
- select HAVE_BPF_JIT if 64BIT && PACK_STACK
- select ARCH_SAVE_PAGE_KEYS if HIBERNATION
- select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE
- select HAVE_MEMBLOCK
- select HAVE_MEMBLOCK_NODE_MAP
- select HAVE_CMPXCHG_LOCAL
- select HAVE_CMPXCHG_DOUBLE
- select HAVE_ALIGNED_STRUCT_PAGE if SLUB
- select HAVE_VIRT_CPU_ACCOUNTING
- select VIRT_CPU_ACCOUNTING
select ARCH_DISCARD_MEMBLOCK
- select BUILDTIME_EXTABLE_SORT
- select ARCH_INLINE_SPIN_TRYLOCK
- select ARCH_INLINE_SPIN_TRYLOCK_BH
- select ARCH_INLINE_SPIN_LOCK
- select ARCH_INLINE_SPIN_LOCK_BH
- select ARCH_INLINE_SPIN_LOCK_IRQ
- select ARCH_INLINE_SPIN_LOCK_IRQSAVE
- select ARCH_INLINE_SPIN_UNLOCK
- select ARCH_INLINE_SPIN_UNLOCK_BH
- select ARCH_INLINE_SPIN_UNLOCK_IRQ
- select ARCH_INLINE_SPIN_UNLOCK_IRQRESTORE
- select ARCH_INLINE_READ_TRYLOCK
+ select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE
+ select ARCH_HAVE_NMI_SAFE_CMPXCHG
select ARCH_INLINE_READ_LOCK
select ARCH_INLINE_READ_LOCK_BH
select ARCH_INLINE_READ_LOCK_IRQ
select ARCH_INLINE_READ_LOCK_IRQSAVE
+ select ARCH_INLINE_READ_TRYLOCK
select ARCH_INLINE_READ_UNLOCK
select ARCH_INLINE_READ_UNLOCK_BH
select ARCH_INLINE_READ_UNLOCK_IRQ
select ARCH_INLINE_READ_UNLOCK_IRQRESTORE
- select ARCH_INLINE_WRITE_TRYLOCK
+ select ARCH_INLINE_SPIN_LOCK
+ select ARCH_INLINE_SPIN_LOCK_BH
+ select ARCH_INLINE_SPIN_LOCK_IRQ
+ select ARCH_INLINE_SPIN_LOCK_IRQSAVE
+ select ARCH_INLINE_SPIN_TRYLOCK
+ select ARCH_INLINE_SPIN_TRYLOCK_BH
+ select ARCH_INLINE_SPIN_UNLOCK
+ select ARCH_INLINE_SPIN_UNLOCK_BH
+ select ARCH_INLINE_SPIN_UNLOCK_IRQ
+ select ARCH_INLINE_SPIN_UNLOCK_IRQRESTORE
select ARCH_INLINE_WRITE_LOCK
select ARCH_INLINE_WRITE_LOCK_BH
select ARCH_INLINE_WRITE_LOCK_IRQ
select ARCH_INLINE_WRITE_LOCK_IRQSAVE
+ select ARCH_INLINE_WRITE_TRYLOCK
select ARCH_INLINE_WRITE_UNLOCK
select ARCH_INLINE_WRITE_UNLOCK_BH
select ARCH_INLINE_WRITE_UNLOCK_IRQ
select ARCH_INLINE_WRITE_UNLOCK_IRQRESTORE
- select HAVE_UID16 if 32BIT
+ select ARCH_SAVE_PAGE_KEYS if HIBERNATION
select ARCH_WANT_IPC_PARSE_VERSION
- select HAVE_ARCH_TRANSPARENT_HUGEPAGE if 64BIT
+ select BUILDTIME_EXTABLE_SORT
+ 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 GENERIC_CLOCKEVENTS
- select KTIME_SCALAR if 32BIT
+ select HAVE_ALIGNED_STRUCT_PAGE if SLUB
+ select HAVE_ARCH_JUMP_LABEL if !MARCH_G5
+ select HAVE_ARCH_MUTEX_CPU_RELAX
select HAVE_ARCH_SECCOMP_FILTER
+ select HAVE_ARCH_TRACEHOOK
+ select HAVE_ARCH_TRANSPARENT_HUGEPAGE if 64BIT
+ select HAVE_BPF_JIT if 64BIT && PACK_STACK
+ select HAVE_CMPXCHG_DOUBLE
+ select HAVE_CMPXCHG_LOCAL
+ select HAVE_C_RECORDMCOUNT
+ select HAVE_DEBUG_KMEMLEAK
+ select HAVE_DYNAMIC_FTRACE
+ select HAVE_FTRACE_MCOUNT_RECORD
+ select HAVE_FUNCTION_GRAPH_TRACER
+ select HAVE_FUNCTION_TRACER
+ select HAVE_FUNCTION_TRACE_MCOUNT_TEST
+ select HAVE_KERNEL_BZIP2
+ select HAVE_KERNEL_GZIP
+ select HAVE_KERNEL_LZMA
+ select HAVE_KERNEL_LZO
+ select HAVE_KERNEL_XZ
+ select HAVE_KPROBES
+ select HAVE_KRETPROBES
+ select HAVE_KVM if 64BIT
+ select HAVE_MEMBLOCK
+ select HAVE_MEMBLOCK_NODE_MAP
select HAVE_MOD_ARCH_SPECIFIC
+ select HAVE_OPROFILE
+ select HAVE_PERF_EVENTS
+ select HAVE_REGS_AND_STACK_ACCESS_API
+ select HAVE_SYSCALL_TRACEPOINTS
+ select HAVE_SYSCALL_WRAPPERS
+ select HAVE_UID16 if 32BIT
+ select HAVE_VIRT_CPU_ACCOUNTING
+ select INIT_ALL_POSSIBLE
+ select KTIME_SCALAR if 32BIT
select MODULES_USE_ELF_RELA
- select CLONE_BACKWARDS2
+ select SYSCTL_EXCEPTION_TRACE
+ select USE_GENERIC_SMP_HELPERS if SMP
+ select VIRT_CPU_ACCOUNTING
config SCHED_OMIT_FRAME_POINTER
def_bool y
diff --git a/arch/s390/appldata/appldata_mem.c b/arch/s390/appldata/appldata_mem.c
index 02d9a1cf505..7ef60b52d6e 100644
--- a/arch/s390/appldata/appldata_mem.c
+++ b/arch/s390/appldata/appldata_mem.c
@@ -108,7 +108,7 @@ static void appldata_get_mem_data(void *data)
mem_data->totalswap = P2K(val.totalswap);
mem_data->freeswap = P2K(val.freeswap);
- mem_data->timestamp = get_clock();
+ mem_data->timestamp = get_tod_clock();
mem_data->sync_count_2++;
}
diff --git a/arch/s390/appldata/appldata_net_sum.c b/arch/s390/appldata/appldata_net_sum.c
index 1370e358d49..2d224b94535 100644
--- a/arch/s390/appldata/appldata_net_sum.c
+++ b/arch/s390/appldata/appldata_net_sum.c
@@ -111,7 +111,7 @@ static void appldata_get_net_sum_data(void *data)
net_data->tx_dropped = tx_dropped;
net_data->collisions = collisions;
- net_data->timestamp = get_clock();
+ net_data->timestamp = get_tod_clock();
net_data->sync_count_2++;
}
diff --git a/arch/s390/appldata/appldata_os.c b/arch/s390/appldata/appldata_os.c
index 87521ba682e..de8e2b3b018 100644
--- a/arch/s390/appldata/appldata_os.c
+++ b/arch/s390/appldata/appldata_os.c
@@ -156,7 +156,7 @@ static void appldata_get_os_data(void *data)
}
ops.size = new_size;
}
- os_data->timestamp = get_clock();
+ os_data->timestamp = get_tod_clock();
os_data->sync_count_2++;
}
diff --git a/arch/s390/hypfs/hypfs_vm.c b/arch/s390/hypfs/hypfs_vm.c
index 4f6afaa8bd8..f364dcf77e8 100644
--- a/arch/s390/hypfs/hypfs_vm.c
+++ b/arch/s390/hypfs/hypfs_vm.c
@@ -245,7 +245,7 @@ static int dbfs_diag2fc_create(void **data, void **data_free_ptr, size_t *size)
d2fc = diag2fc_store(guest_query, &count, sizeof(d2fc->hdr));
if (IS_ERR(d2fc))
return PTR_ERR(d2fc);
- get_clock_ext(d2fc->hdr.tod_ext);
+ get_tod_clock_ext(d2fc->hdr.tod_ext);
d2fc->hdr.len = count * sizeof(struct diag2fc_data);
d2fc->hdr.version = DBFS_D2FC_HDR_VERSION;
d2fc->hdr.count = count;
diff --git a/arch/s390/include/asm/barrier.h b/arch/s390/include/asm/barrier.h
index 10a50880294..16760eeb79b 100644
--- a/arch/s390/include/asm/barrier.h
+++ b/arch/s390/include/asm/barrier.h
@@ -13,15 +13,12 @@
* to devices.
*/
-static inline void mb(void)
-{
#ifdef CONFIG_HAVE_MARCH_Z196_FEATURES
- /* Fast-BCR without checkpoint synchronization */
- asm volatile("bcr 14,0" : : : "memory");
+/* Fast-BCR without checkpoint synchronization */
+#define mb() do { asm volatile("bcr 14,0" : : : "memory"); } while (0)
#else
- asm volatile("bcr 15,0" : : : "memory");
+#define mb() do { asm volatile("bcr 15,0" : : : "memory"); } while (0)
#endif
-}
#define rmb() mb()
#define wmb() mb()
diff --git a/arch/s390/include/asm/clp.h b/arch/s390/include/asm/clp.h
index 6c3aecc245f..a0e71a501f7 100644
--- a/arch/s390/include/asm/clp.h
+++ b/arch/s390/include/asm/clp.h
@@ -2,7 +2,7 @@
#define _ASM_S390_CLP_H
/* CLP common request & response block size */
-#define CLP_BLK_SIZE (PAGE_SIZE * 2)
+#define CLP_BLK_SIZE PAGE_SIZE
struct clp_req_hdr {
u16 len;
diff --git a/arch/s390/include/asm/cpu_mf.h b/arch/s390/include/asm/cpu_mf.h
index 35f0020b7ba..f1eddd150dd 100644
--- a/arch/s390/include/asm/cpu_mf.h
+++ b/arch/s390/include/asm/cpu_mf.h
@@ -34,12 +34,12 @@
/* CPU measurement facility support */
static inline int cpum_cf_avail(void)
{
- return MACHINE_HAS_SPP && test_facility(67);
+ return MACHINE_HAS_LPP && test_facility(67);
}
static inline int cpum_sf_avail(void)
{
- return MACHINE_HAS_SPP && test_facility(68);
+ return MACHINE_HAS_LPP && test_facility(68);
}
diff --git a/arch/s390/include/asm/dma-mapping.h b/arch/s390/include/asm/dma-mapping.h
index 8a32f7dfd3a..9411db653ba 100644
--- a/arch/s390/include/asm/dma-mapping.h
+++ b/arch/s390/include/asm/dma-mapping.h
@@ -19,9 +19,11 @@ static inline struct dma_map_ops *get_dma_ops(struct device *dev)
}
extern int dma_set_mask(struct device *dev, u64 mask);
-extern int dma_is_consistent(struct device *dev, dma_addr_t dma_handle);
-extern void dma_cache_sync(struct device *dev, void *vaddr, size_t size,
- enum dma_data_direction direction);
+
+static inline void dma_cache_sync(struct device *dev, void *vaddr, size_t size,
+ enum dma_data_direction direction)
+{
+}
#define dma_alloc_noncoherent(d, s, h, f) dma_alloc_coherent(d, s, h, f)
#define dma_free_noncoherent(d, s, v, h) dma_free_coherent(d, s, v, h)
diff --git a/arch/s390/include/asm/mman.h b/arch/s390/include/asm/mman.h
index 0e47a576d66..9977e08df5b 100644
--- a/arch/s390/include/asm/mman.h
+++ b/arch/s390/include/asm/mman.h
@@ -9,7 +9,7 @@
#include <uapi/asm/mman.h>
#if !defined(__ASSEMBLY__) && defined(CONFIG_64BIT)
-int s390_mmap_check(unsigned long addr, unsigned long len);
-#define arch_mmap_check(addr,len,flags) s390_mmap_check(addr,len)
+int s390_mmap_check(unsigned long addr, unsigned long len, unsigned long flags);
+#define arch_mmap_check(addr, len, flags) s390_mmap_check(addr, len, flags)
#endif
#endif /* __S390_MMAN_H__ */
diff --git a/arch/s390/include/asm/page.h b/arch/s390/include/asm/page.h
index a86ad408407..75ce9b065f9 100644
--- a/arch/s390/include/asm/page.h
+++ b/arch/s390/include/asm/page.h
@@ -155,28 +155,6 @@ static inline int page_reset_referenced(unsigned long addr)
#define _PAGE_ACC_BITS 0xf0 /* HW access control bits */
/*
- * Test and clear dirty bit in storage key.
- * We can't clear the changed bit atomically. This is a potential
- * race against modification of the referenced bit. This function
- * should therefore only be called if it is not mapped in any
- * address space.
- *
- * Note that the bit gets set whenever page content is changed. That means
- * also when the page is modified by DMA or from inside the kernel.
- */
-#define __HAVE_ARCH_PAGE_TEST_AND_CLEAR_DIRTY
-static inline int page_test_and_clear_dirty(unsigned long pfn, int mapped)
-{
- unsigned char skey;
-
- skey = page_get_storage_key(pfn << PAGE_SHIFT);
- if (!(skey & _PAGE_CHANGED))
- return 0;
- page_set_storage_key(pfn << PAGE_SHIFT, skey & ~_PAGE_CHANGED, mapped);
- return 1;
-}
-
-/*
* Test and clear referenced bit in storage key.
*/
#define __HAVE_ARCH_PAGE_TEST_AND_CLEAR_YOUNG
diff --git a/arch/s390/include/asm/pci.h b/arch/s390/include/asm/pci.h
index b1fa93c606a..05333b7f046 100644
--- a/arch/s390/include/asm/pci.h
+++ b/arch/s390/include/asm/pci.h
@@ -160,9 +160,14 @@ void zpci_teardown_msi_irq(struct zpci_dev *, struct msi_desc *);
int zpci_msihash_init(void);
void zpci_msihash_exit(void);
+#ifdef CONFIG_PCI
/* Error handling and recovery */
void zpci_event_error(void *);
void zpci_event_availability(void *);
+#else /* CONFIG_PCI */
+static inline void zpci_event_error(void *e) {}
+static inline void zpci_event_availability(void *e) {}
+#endif /* CONFIG_PCI */
/* Helpers */
struct zpci_dev *get_zdev(struct pci_dev *);
@@ -180,8 +185,10 @@ void zpci_dma_exit(void);
/* Hotplug */
extern struct mutex zpci_list_lock;
extern struct list_head zpci_list;
-extern struct pci_hp_callback_ops hotplug_ops;
-extern unsigned int pci_probe;
+extern unsigned int s390_pci_probe;
+
+void zpci_register_hp_ops(struct pci_hp_callback_ops *);
+void zpci_deregister_hp_ops(void);
/* FMB */
int zpci_fmb_enable_device(struct zpci_dev *);
diff --git a/arch/s390/include/asm/pgtable.h b/arch/s390/include/asm/pgtable.h
index 098adbb6266..97de1200c84 100644
--- a/arch/s390/include/asm/pgtable.h
+++ b/arch/s390/include/asm/pgtable.h
@@ -29,6 +29,7 @@
#ifndef __ASSEMBLY__
#include <linux/sched.h>
#include <linux/mm_types.h>
+#include <linux/page-flags.h>
#include <asm/bug.h>
#include <asm/page.h>
@@ -221,13 +222,15 @@ extern unsigned long MODULES_END;
/* Software bits in the page table entry */
#define _PAGE_SWT 0x001 /* SW pte type bit t */
#define _PAGE_SWX 0x002 /* SW pte type bit x */
-#define _PAGE_SWC 0x004 /* SW pte changed bit (for KVM) */
-#define _PAGE_SWR 0x008 /* SW pte referenced bit (for KVM) */
-#define _PAGE_SPECIAL 0x010 /* SW associated with special page */
+#define _PAGE_SWC 0x004 /* SW pte changed bit */
+#define _PAGE_SWR 0x008 /* SW pte referenced bit */
+#define _PAGE_SWW 0x010 /* SW pte write bit */
+#define _PAGE_SPECIAL 0x020 /* SW associated with special page */
#define __HAVE_ARCH_PTE_SPECIAL
/* Set of bits not changed in pte_modify */
-#define _PAGE_CHG_MASK (PAGE_MASK | _PAGE_SPECIAL | _PAGE_SWC | _PAGE_SWR)
+#define _PAGE_CHG_MASK (PAGE_MASK | _PAGE_SPECIAL | _PAGE_CO | \
+ _PAGE_SWC | _PAGE_SWR)
/* Six different types of pages. */
#define _PAGE_TYPE_EMPTY 0x400
@@ -321,6 +324,7 @@ extern unsigned long MODULES_END;
/* Bits in the region table entry */
#define _REGION_ENTRY_ORIGIN ~0xfffUL/* region/segment table origin */
+#define _REGION_ENTRY_RO 0x200 /* region protection bit */
#define _REGION_ENTRY_INV 0x20 /* invalid region table entry */
#define _REGION_ENTRY_TYPE_MASK 0x0c /* region/segment table type mask */
#define _REGION_ENTRY_TYPE_R1 0x0c /* region first table type */
@@ -382,9 +386,11 @@ extern unsigned long MODULES_END;
*/
#define PAGE_NONE __pgprot(_PAGE_TYPE_NONE)
#define PAGE_RO __pgprot(_PAGE_TYPE_RO)
-#define PAGE_RW __pgprot(_PAGE_TYPE_RW)
+#define PAGE_RW __pgprot(_PAGE_TYPE_RO | _PAGE_SWW)
+#define PAGE_RWC __pgprot(_PAGE_TYPE_RW | _PAGE_SWW | _PAGE_SWC)
-#define PAGE_KERNEL PAGE_RW
+#define PAGE_KERNEL PAGE_RWC
+#define PAGE_SHARED PAGE_KERNEL
#define PAGE_COPY PAGE_RO
/*
@@ -631,23 +637,23 @@ static inline pgste_t pgste_update_all(pte_t *ptep, pgste_t pgste)
bits = skey & (_PAGE_CHANGED | _PAGE_REFERENCED);
/* Clear page changed & referenced bit in the storage key */
if (bits & _PAGE_CHANGED)
- page_set_storage_key(address, skey ^ bits, 1);
+ page_set_storage_key(address, skey ^ bits, 0);
else if (bits)
page_reset_referenced(address);
/* Transfer page changed & referenced bit to guest bits in pgste */
pgste_val(pgste) |= bits << 48; /* RCP_GR_BIT & RCP_GC_BIT */
/* Get host changed & referenced bits from pgste */
bits |= (pgste_val(pgste) & (RCP_HR_BIT | RCP_HC_BIT)) >> 52;
- /* Clear host bits in pgste. */
+ /* Transfer page changed & referenced bit to kvm user bits */
+ pgste_val(pgste) |= bits << 45; /* KVM_UR_BIT & KVM_UC_BIT */
+ /* Clear relevant host bits in pgste. */
pgste_val(pgste) &= ~(RCP_HR_BIT | RCP_HC_BIT);
pgste_val(pgste) &= ~(RCP_ACC_BITS | RCP_FP_BIT);
/* Copy page access key and fetch protection bit to pgste */
pgste_val(pgste) |=
(unsigned long) (skey & (_PAGE_ACC_BITS | _PAGE_FP_BIT)) << 56;
- /* Transfer changed and referenced to kvm user bits */
- pgste_val(pgste) |= bits << 45; /* KVM_UR_BIT & KVM_UC_BIT */
- /* Transfer changed & referenced to pte sofware bits */
- pte_val(*ptep) |= bits << 1; /* _PAGE_SWR & _PAGE_SWC */
+ /* Transfer referenced bit to pte */
+ pte_val(*ptep) |= (bits & _PAGE_REFERENCED) << 1;
#endif
return pgste;
@@ -660,20 +666,25 @@ static inline pgste_t pgste_update_young(pte_t *ptep, pgste_t pgste)
if (!pte_present(*ptep))
return pgste;
+ /* Get referenced bit from storage key */
young = page_reset_referenced(pte_val(*ptep) & PAGE_MASK);
- /* Transfer page referenced bit to pte software bit (host view) */
- if (young || (pgste_val(pgste) & RCP_HR_BIT))
+ if (young)
+ pgste_val(pgste) |= RCP_GR_BIT;
+ /* Get host referenced bit from pgste */
+ if (pgste_val(pgste) & RCP_HR_BIT) {
+ pgste_val(pgste) &= ~RCP_HR_BIT;
+ young = 1;
+ }
+ /* Transfer referenced bit to kvm user bits and pte */
+ if (young) {
+ pgste_val(pgste) |= KVM_UR_BIT;
pte_val(*ptep) |= _PAGE_SWR;
- /* Clear host referenced bit in pgste. */
- pgste_val(pgste) &= ~RCP_HR_BIT;
- /* Transfer page referenced bit to guest bit in pgste */
- pgste_val(pgste) |= (unsigned long) young << 50; /* set RCP_GR_BIT */
+ }
#endif
return pgste;
-
}
-static inline void pgste_set_pte(pte_t *ptep, pgste_t pgste, pte_t entry)
+static inline void pgste_set_key(pte_t *ptep, pgste_t pgste, pte_t entry)
{
#ifdef CONFIG_PGSTE
unsigned long address;
@@ -687,10 +698,23 @@ static inline void pgste_set_pte(pte_t *ptep, pgste_t pgste, pte_t entry)
/* Set page access key and fetch protection bit from pgste */
nkey |= (pgste_val(pgste) & (RCP_ACC_BITS | RCP_FP_BIT)) >> 56;
if (okey != nkey)
- page_set_storage_key(address, nkey, 1);
+ page_set_storage_key(address, nkey, 0);
#endif
}
+static inline void pgste_set_pte(pte_t *ptep, pte_t entry)
+{
+ if (!MACHINE_HAS_ESOP && (pte_val(entry) & _PAGE_SWW)) {
+ /*
+ * Without enhanced suppression-on-protection force
+ * the dirty bit on for all writable ptes.
+ */
+ pte_val(entry) |= _PAGE_SWC;
+ pte_val(entry) &= ~_PAGE_RO;
+ }
+ *ptep = entry;
+}
+
/**
* struct gmap_struct - guest address space
* @mm: pointer to the parent mm_struct
@@ -749,11 +773,14 @@ static inline void set_pte_at(struct mm_struct *mm, unsigned long addr,
if (mm_has_pgste(mm)) {
pgste = pgste_get_lock(ptep);
- pgste_set_pte(ptep, pgste, entry);
- *ptep = entry;
+ pgste_set_key(ptep, pgste, entry);
+ pgste_set_pte(ptep, entry);
pgste_set_unlock(ptep, pgste);
- } else
+ } else {
+ if (!(pte_val(entry) & _PAGE_INVALID) && MACHINE_HAS_EDAT1)
+ pte_val(entry) |= _PAGE_CO;
*ptep = entry;
+ }
}
/*
@@ -762,16 +789,12 @@ static inline void set_pte_at(struct mm_struct *mm, unsigned long addr,
*/
static inline int pte_write(pte_t pte)
{
- return (pte_val(pte) & _PAGE_RO) == 0;
+ return (pte_val(pte) & _PAGE_SWW) != 0;
}
static inline int pte_dirty(pte_t pte)
{
-#ifdef CONFIG_PGSTE
- if (pte_val(pte) & _PAGE_SWC)
- return 1;
-#endif
- return 0;
+ return (pte_val(pte) & _PAGE_SWC) != 0;
}
static inline int pte_young(pte_t pte)
@@ -821,11 +844,14 @@ static inline pte_t pte_modify(pte_t pte, pgprot_t newprot)
{
pte_val(pte) &= _PAGE_CHG_MASK;
pte_val(pte) |= pgprot_val(newprot);
+ if ((pte_val(pte) & _PAGE_SWC) && (pte_val(pte) & _PAGE_SWW))
+ pte_val(pte) &= ~_PAGE_RO;
return pte;
}
static inline pte_t pte_wrprotect(pte_t pte)
{
+ pte_val(pte) &= ~_PAGE_SWW;
/* Do not clobber _PAGE_TYPE_NONE pages! */
if (!(pte_val(pte) & _PAGE_INVALID))
pte_val(pte) |= _PAGE_RO;
@@ -834,20 +860,26 @@ static inline pte_t pte_wrprotect(pte_t pte)
static inline pte_t pte_mkwrite(pte_t pte)
{
- pte_val(pte) &= ~_PAGE_RO;
+ pte_val(pte) |= _PAGE_SWW;
+ if (pte_val(pte) & _PAGE_SWC)
+ pte_val(pte) &= ~_PAGE_RO;
return pte;
}
static inline pte_t pte_mkclean(pte_t pte)
{
-#ifdef CONFIG_PGSTE
pte_val(pte) &= ~_PAGE_SWC;
-#endif
+ /* Do not clobber _PAGE_TYPE_NONE pages! */
+ if (!(pte_val(pte) & _PAGE_INVALID))
+ pte_val(pte) |= _PAGE_RO;
return pte;
}
static inline pte_t pte_mkdirty(pte_t pte)
{
+ pte_val(pte) |= _PAGE_SWC;
+ if (pte_val(pte) & _PAGE_SWW)
+ pte_val(pte) &= ~_PAGE_RO;
return pte;
}
@@ -885,10 +917,10 @@ static inline pte_t pte_mkhuge(pte_t pte)
pte_val(pte) |= _SEGMENT_ENTRY_INV;
}
/*
- * Clear SW pte bits SWT and SWX, there are no SW bits in a segment
- * table entry.
+ * Clear SW pte bits, there are no SW bits in a segment table entry.
*/
- pte_val(pte) &= ~(_PAGE_SWT | _PAGE_SWX);
+ pte_val(pte) &= ~(_PAGE_SWT | _PAGE_SWX | _PAGE_SWC |
+ _PAGE_SWR | _PAGE_SWW);
/*
* Also set the change-override bit because we don't need dirty bit
* tracking for hugetlbfs pages.
@@ -1040,9 +1072,11 @@ static inline void ptep_modify_prot_commit(struct mm_struct *mm,
unsigned long address,
pte_t *ptep, pte_t pte)
{
- *ptep = pte;
- if (mm_has_pgste(mm))
+ if (mm_has_pgste(mm)) {
+ pgste_set_pte(ptep, pte);
pgste_set_unlock(ptep, *(pgste_t *)(ptep + PTRS_PER_PTE));
+ } else
+ *ptep = pte;
}
#define __HAVE_ARCH_PTEP_CLEAR_FLUSH
@@ -1110,10 +1144,13 @@ static inline pte_t ptep_set_wrprotect(struct mm_struct *mm,
if (!mm_exclusive(mm))
__ptep_ipte(address, ptep);
- *ptep = pte_wrprotect(pte);
+ pte = pte_wrprotect(pte);
- if (mm_has_pgste(mm))
+ if (mm_has_pgste(mm)) {
+ pgste_set_pte(ptep, pte);
pgste_set_unlock(ptep, pgste);
+ } else
+ *ptep = pte;
}
return pte;
}
@@ -1131,10 +1168,12 @@ static inline int ptep_set_access_flags(struct vm_area_struct *vma,
pgste = pgste_get_lock(ptep);
__ptep_ipte(address, ptep);
- *ptep = entry;
- if (mm_has_pgste(vma->vm_mm))
+ if (mm_has_pgste(vma->vm_mm)) {
+ pgste_set_pte(ptep, entry);
pgste_set_unlock(ptep, pgste);
+ } else
+ *ptep = entry;
return 1;
}
@@ -1152,8 +1191,13 @@ static inline pte_t mk_pte_phys(unsigned long physpage, pgprot_t pgprot)
static inline pte_t mk_pte(struct page *page, pgprot_t pgprot)
{
unsigned long physpage = page_to_phys(page);
+ pte_t __pte = mk_pte_phys(physpage, pgprot);
- return mk_pte_phys(physpage, pgprot);
+ if ((pte_val(__pte) & _PAGE_SWW) && PageDirty(page)) {
+ pte_val(__pte) |= _PAGE_SWC;
+ pte_val(__pte) &= ~_PAGE_RO;
+ }
+ return __pte;
}
#define pgd_index(address) (((address) >> PGDIR_SHIFT) & (PTRS_PER_PGD-1))
@@ -1245,6 +1289,8 @@ static inline int pmd_trans_splitting(pmd_t pmd)
static inline void set_pmd_at(struct mm_struct *mm, unsigned long addr,
pmd_t *pmdp, pmd_t entry)
{
+ if (!(pmd_val(entry) & _SEGMENT_ENTRY_INV) && MACHINE_HAS_EDAT1)
+ pmd_val(entry) |= _SEGMENT_ENTRY_CO;
*pmdp = entry;
}
diff --git a/arch/s390/include/asm/sclp.h b/arch/s390/include/asm/sclp.h
index 833788693f0..06a13613604 100644
--- a/arch/s390/include/asm/sclp.h
+++ b/arch/s390/include/asm/sclp.h
@@ -46,7 +46,6 @@ int sclp_cpu_deconfigure(u8 cpu);
void sclp_facilities_detect(void);
unsigned long long sclp_get_rnmax(void);
unsigned long long sclp_get_rzm(void);
-u8 sclp_get_fac85(void);
int sclp_sdias_blk_count(void);
int sclp_sdias_copy(void *dest, int blk_num, int nr_blks);
int sclp_chp_configure(struct chp_id chpid);
diff --git a/arch/s390/include/asm/setup.h b/arch/s390/include/asm/setup.h
index f69f76b3447..ff67d730c00 100644
--- a/arch/s390/include/asm/setup.h
+++ b/arch/s390/include/asm/setup.h
@@ -64,17 +64,18 @@ extern unsigned int s390_user_mode;
#define MACHINE_FLAG_VM (1UL << 0)
#define MACHINE_FLAG_IEEE (1UL << 1)
-#define MACHINE_FLAG_CSP (1UL << 3)
-#define MACHINE_FLAG_MVPG (1UL << 4)
-#define MACHINE_FLAG_DIAG44 (1UL << 5)
-#define MACHINE_FLAG_IDTE (1UL << 6)
-#define MACHINE_FLAG_DIAG9C (1UL << 7)
-#define MACHINE_FLAG_MVCOS (1UL << 8)
-#define MACHINE_FLAG_KVM (1UL << 9)
+#define MACHINE_FLAG_CSP (1UL << 2)
+#define MACHINE_FLAG_MVPG (1UL << 3)
+#define MACHINE_FLAG_DIAG44 (1UL << 4)
+#define MACHINE_FLAG_IDTE (1UL << 5)
+#define MACHINE_FLAG_DIAG9C (1UL << 6)
+#define MACHINE_FLAG_MVCOS (1UL << 7)
+#define MACHINE_FLAG_KVM (1UL << 8)
+#define MACHINE_FLAG_ESOP (1UL << 9)
#define MACHINE_FLAG_EDAT1 (1UL << 10)
#define MACHINE_FLAG_EDAT2 (1UL << 11)
#define MACHINE_FLAG_LPAR (1UL << 12)
-#define MACHINE_FLAG_SPP (1UL << 13)
+#define MACHINE_FLAG_LPP (1UL << 13)
#define MACHINE_FLAG_TOPOLOGY (1UL << 14)
#define MACHINE_FLAG_TE (1UL << 15)
#define MACHINE_FLAG_RRBM (1UL << 16)
@@ -84,6 +85,7 @@ extern unsigned int s390_user_mode;
#define MACHINE_IS_LPAR (S390_lowcore.machine_flags & MACHINE_FLAG_LPAR)
#define MACHINE_HAS_DIAG9C (S390_lowcore.machine_flags & MACHINE_FLAG_DIAG9C)
+#define MACHINE_HAS_ESOP (S390_lowcore.machine_flags & MACHINE_FLAG_ESOP)
#define MACHINE_HAS_PFMF MACHINE_HAS_EDAT1
#define MACHINE_HAS_HPAGE MACHINE_HAS_EDAT1
@@ -96,7 +98,7 @@ extern unsigned int s390_user_mode;
#define MACHINE_HAS_MVCOS (0)
#define MACHINE_HAS_EDAT1 (0)
#define MACHINE_HAS_EDAT2 (0)
-#define MACHINE_HAS_SPP (0)
+#define MACHINE_HAS_LPP (0)
#define MACHINE_HAS_TOPOLOGY (0)
#define MACHINE_HAS_TE (0)
#define MACHINE_HAS_RRBM (0)
@@ -109,7 +111,7 @@ extern unsigned int s390_user_mode;
#define MACHINE_HAS_MVCOS (S390_lowcore.machine_flags & MACHINE_FLAG_MVCOS)
#define MACHINE_HAS_EDAT1 (S390_lowcore.machine_flags & MACHINE_FLAG_EDAT1)
#define MACHINE_HAS_EDAT2 (S390_lowcore.machine_flags & MACHINE_FLAG_EDAT2)
-#define MACHINE_HAS_SPP (S390_lowcore.machine_flags & MACHINE_FLAG_SPP)
+#define MACHINE_HAS_LPP (S390_lowcore.machine_flags & MACHINE_FLAG_LPP)
#define MACHINE_HAS_TOPOLOGY (S390_lowcore.machine_flags & MACHINE_FLAG_TOPOLOGY)
#define MACHINE_HAS_TE (S390_lowcore.machine_flags & MACHINE_FLAG_TE)
#define MACHINE_HAS_RRBM (S390_lowcore.machine_flags & MACHINE_FLAG_RRBM)
diff --git a/arch/s390/include/asm/timex.h b/arch/s390/include/asm/timex.h
index 4c060bb5b8e..8ad8af91503 100644
--- a/arch/s390/include/asm/timex.h
+++ b/arch/s390/include/asm/timex.h
@@ -15,7 +15,7 @@
#define TOD_UNIX_EPOCH 0x7d91048bca000000ULL
/* Inline functions for clock register access. */
-static inline int set_clock(__u64 time)
+static inline int set_tod_clock(__u64 time)
{
int cc;
@@ -27,7 +27,7 @@ static inline int set_clock(__u64 time)
return cc;
}
-static inline int store_clock(__u64 *time)
+static inline int store_tod_clock(__u64 *time)
{
int cc;
@@ -71,7 +71,7 @@ static inline void local_tick_enable(unsigned long long comp)
typedef unsigned long long cycles_t;
-static inline unsigned long long get_clock(void)
+static inline unsigned long long get_tod_clock(void)
{
unsigned long long clk;
@@ -83,21 +83,21 @@ static inline unsigned long long get_clock(void)
return clk;
}
-static inline void get_clock_ext(char *clk)
+static inline void get_tod_clock_ext(char *clk)
{
asm volatile("stcke %0" : "=Q" (*clk) : : "cc");
}
-static inline unsigned long long get_clock_xt(void)
+static inline unsigned long long get_tod_clock_xt(void)
{
unsigned char clk[16];
- get_clock_ext(clk);
+ get_tod_clock_ext(clk);
return *((unsigned long long *)&clk[1]);
}
static inline cycles_t get_cycles(void)
{
- return (cycles_t) get_clock() >> 2;
+ return (cycles_t) get_tod_clock() >> 2;
}
int get_sync_clock(unsigned long long *clock);
@@ -123,9 +123,9 @@ extern u64 sched_clock_base_cc;
* function, otherwise the returned value is not guaranteed to
* be monotonic.
*/
-static inline unsigned long long get_clock_monotonic(void)
+static inline unsigned long long get_tod_clock_monotonic(void)
{
- return get_clock_xt() - sched_clock_base_cc;
+ return get_tod_clock_xt() - sched_clock_base_cc;
}
/**
diff --git a/arch/s390/kernel/debug.c b/arch/s390/kernel/debug.c
index 4e8215e0d4b..09a94cd9deb 100644
--- a/arch/s390/kernel/debug.c
+++ b/arch/s390/kernel/debug.c
@@ -867,7 +867,7 @@ static inline void
debug_finish_entry(debug_info_t * id, debug_entry_t* active, int level,
int exception)
{
- active->id.stck = get_clock();
+ active->id.stck = get_tod_clock();
active->id.fields.cpuid = smp_processor_id();
active->caller = __builtin_return_address(0);
active->id.fields.exception = exception;
diff --git a/arch/s390/kernel/dis.c b/arch/s390/kernel/dis.c
index a7f9abd98cf..c50665fe943 100644
--- a/arch/s390/kernel/dis.c
+++ b/arch/s390/kernel/dis.c
@@ -840,7 +840,6 @@ static struct insn opcode_b2[] = {
{ "stcke", 0x78, INSTR_S_RD },
{ "sacf", 0x79, INSTR_S_RD },
{ "stsi", 0x7d, INSTR_S_RD },
- { "spp", 0x80, INSTR_S_RD },
{ "srnm", 0x99, INSTR_S_RD },
{ "stfpc", 0x9c, INSTR_S_RD },
{ "lfpc", 0x9d, INSTR_S_RD },
diff --git a/arch/s390/kernel/early.c b/arch/s390/kernel/early.c
index 1f0eee9e7da..bda011e2f8a 100644
--- a/arch/s390/kernel/early.c
+++ b/arch/s390/kernel/early.c
@@ -47,10 +47,10 @@ static void __init reset_tod_clock(void)
{
u64 time;
- if (store_clock(&time) == 0)
+ if (store_tod_clock(&time) == 0)
return;
/* TOD clock not running. Set the clock to Unix Epoch. */
- if (set_clock(TOD_UNIX_EPOCH) != 0 || store_clock(&time) != 0)
+ if (set_tod_clock(TOD_UNIX_EPOCH) != 0 || store_tod_clock(&time) != 0)
disabled_wait(0);
sched_clock_base_cc = TOD_UNIX_EPOCH;
@@ -173,7 +173,7 @@ static noinline __init void create_kernel_nss(void)
}
/* re-initialize cputime accounting. */
- sched_clock_base_cc = get_clock();
+ sched_clock_base_cc = get_tod_clock();
S390_lowcore.last_update_clock = sched_clock_base_cc;
S390_lowcore.last_update_timer = 0x7fffffffffffffffULL;
S390_lowcore.user_timer = 0;
@@ -381,7 +381,7 @@ static __init void detect_machine_facilities(void)
if (test_facility(27))
S390_lowcore.machine_flags |= MACHINE_FLAG_MVCOS;
if (test_facility(40))
- S390_lowcore.machine_flags |= MACHINE_FLAG_SPP;
+ S390_lowcore.machine_flags |= MACHINE_FLAG_LPP;
if (test_facility(50) && test_facility(73))
S390_lowcore.machine_flags |= MACHINE_FLAG_TE;
if (test_facility(66))
diff --git a/arch/s390/kernel/entry64.S b/arch/s390/kernel/entry64.S
index 6d34e0c97a3..9c837c10129 100644
--- a/arch/s390/kernel/entry64.S
+++ b/arch/s390/kernel/entry64.S
@@ -72,9 +72,9 @@ _TIF_EXIT_SIE = (_TIF_SIGPENDING | _TIF_NEED_RESCHED | _TIF_MCCK_PENDING)
#endif
.endm
- .macro SPP newpp
+ .macro LPP newpp
#if defined(CONFIG_KVM) || defined(CONFIG_KVM_MODULE)
- tm __LC_MACHINE_FLAGS+6,0x20 # MACHINE_FLAG_SPP
+ tm __LC_MACHINE_FLAGS+6,0x20 # MACHINE_FLAG_LPP
jz .+8
.insn s,0xb2800000,\newpp
#endif
@@ -96,7 +96,7 @@ _TIF_EXIT_SIE = (_TIF_SIGPENDING | _TIF_NEED_RESCHED | _TIF_MCCK_PENDING)
jhe .+22
.endif
lg %r9,BASED(.Lsie_loop)
- SPP BASED(.Lhost_id) # set host id
+ LPP BASED(.Lhost_id) # set host id
#endif
.endm
@@ -967,10 +967,10 @@ sie_loop:
lctlg %c1,%c1,__GMAP_ASCE(%r14) # load primary asce
sie_gmap:
lg %r14,__SF_EMPTY(%r15) # get control block pointer
- SPP __SF_EMPTY(%r15) # set guest id
+ LPP __SF_EMPTY(%r15) # set guest id
sie 0(%r14)
sie_done:
- SPP __SF_EMPTY+16(%r15) # set host id
+ LPP __SF_EMPTY+16(%r15) # set host id
lg %r14,__LC_THREAD_INFO # pointer thread_info struct
sie_exit:
lctlg %c1,%c1,__LC_USER_ASCE # load primary asce
diff --git a/arch/s390/kernel/ipl.c b/arch/s390/kernel/ipl.c
index 6ffcd320321..d8a6a385d04 100644
--- a/arch/s390/kernel/ipl.c
+++ b/arch/s390/kernel/ipl.c
@@ -1414,6 +1414,16 @@ static struct kobj_attribute dump_type_attr =
static struct kset *dump_kset;
+static void diag308_dump(void *dump_block)
+{
+ diag308(DIAG308_SET, dump_block);
+ while (1) {
+ if (diag308(DIAG308_DUMP, NULL) != 0x302)
+ break;
+ udelay_simple(USEC_PER_SEC);
+ }
+}
+
static void __dump_run(void *unused)
{
struct ccw_dev_id devid;
@@ -1432,12 +1442,10 @@ static void __dump_run(void *unused)
__cpcmd(buf, NULL, 0, NULL);
break;
case DUMP_METHOD_CCW_DIAG:
- diag308(DIAG308_SET, dump_block_ccw);
- diag308(DIAG308_DUMP, NULL);
+ diag308_dump(dump_block_ccw);
break;
case DUMP_METHOD_FCP_DIAG:
- diag308(DIAG308_SET, dump_block_fcp);
- diag308(DIAG308_DUMP, NULL);
+ diag308_dump(dump_block_fcp);
break;
default:
break;
diff --git a/arch/s390/kernel/module.c b/arch/s390/kernel/module.c
index 4610deafd95..f750bd7bd2c 100644
--- a/arch/s390/kernel/module.c
+++ b/arch/s390/kernel/module.c
@@ -65,8 +65,7 @@ void module_free(struct module *mod, void *module_region)
vfree(module_region);
}
-static void
-check_rela(Elf_Rela *rela, struct module *me)
+static void check_rela(Elf_Rela *rela, struct module *me)
{
struct mod_arch_syminfo *info;
@@ -115,9 +114,8 @@ check_rela(Elf_Rela *rela, struct module *me)
* Account for GOT and PLT relocations. We can't add sections for
* got and plt but we can increase the core module size.
*/
-int
-module_frob_arch_sections(Elf_Ehdr *hdr, Elf_Shdr *sechdrs,
- char *secstrings, struct module *me)
+int module_frob_arch_sections(Elf_Ehdr *hdr, Elf_Shdr *sechdrs,
+ char *secstrings, struct module *me)
{
Elf_Shdr *symtab;
Elf_Sym *symbols;
@@ -179,13 +177,52 @@ module_frob_arch_sections(Elf_Ehdr *hdr, Elf_Shdr *sechdrs,
return 0;
}
-static int
-apply_rela(Elf_Rela *rela, Elf_Addr base, Elf_Sym *symtab,
- struct module *me)
+static int apply_rela_bits(Elf_Addr loc, Elf_Addr val,
+ int sign, int bits, int shift)
+{
+ unsigned long umax;
+ long min, max;
+
+ if (val & ((1UL << shift) - 1))
+ return -ENOEXEC;
+ if (sign) {
+ val = (Elf_Addr)(((long) val) >> shift);
+ min = -(1L << (bits - 1));
+ max = (1L << (bits - 1)) - 1;
+ if ((long) val < min || (long) val > max)
+ return -ENOEXEC;
+ } else {
+ val >>= shift;
+ umax = ((1UL << (bits - 1)) << 1) - 1;
+ if ((unsigned long) val > umax)
+ return -ENOEXEC;
+ }
+
+ if (bits == 8)
+ *(unsigned char *) loc = val;
+ else if (bits == 12)
+ *(unsigned short *) loc = (val & 0xfff) |
+ (*(unsigned short *) loc & 0xf000);
+ else if (bits == 16)
+ *(unsigned short *) loc = val;
+ else if (bits == 20)
+ *(unsigned int *) loc = (val & 0xfff) << 16 |
+ (val & 0xff000) >> 4 |
+ (*(unsigned int *) loc & 0xf00000ff);
+ else if (bits == 32)
+ *(unsigned int *) loc = val;
+ else if (bits == 64)
+ *(unsigned long *) loc = val;
+ return 0;
+}
+
+static int apply_rela(Elf_Rela *rela, Elf_Addr base, Elf_Sym *symtab,
+ const char *strtab, struct module *me)
{
struct mod_arch_syminfo *info;
Elf_Addr loc, val;
int r_type, r_sym;
+ int rc;
/* This is where to make the change */
loc = base + rela->r_offset;
@@ -197,6 +234,9 @@ apply_rela(Elf_Rela *rela, Elf_Addr base, Elf_Sym *symtab,
val = symtab[r_sym].st_value;
switch (r_type) {
+ case R_390_NONE: /* No relocation. */
+ rc = 0;
+ break;
case R_390_8: /* Direct 8 bit. */
case R_390_12: /* Direct 12 bit. */
case R_390_16: /* Direct 16 bit. */
@@ -205,20 +245,17 @@ apply_rela(Elf_Rela *rela, Elf_Addr base, Elf_Sym *symtab,
case R_390_64: /* Direct 64 bit. */
val += rela->r_addend;
if (r_type == R_390_8)
- *(unsigned char *) loc = val;
+ rc = apply_rela_bits(loc, val, 0, 8, 0);
else if (r_type == R_390_12)
- *(unsigned short *) loc = (val & 0xfff) |
- (*(unsigned short *) loc & 0xf000);
+ rc = apply_rela_bits(loc, val, 0, 12, 0);
else if (r_type == R_390_16)
- *(unsigned short *) loc = val;
+ rc = apply_rela_bits(loc, val, 0, 16, 0);
else if (r_type == R_390_20)
- *(unsigned int *) loc =
- (*(unsigned int *) loc & 0xf00000ff) |
- (val & 0xfff) << 16 | (val & 0xff000) >> 4;
+ rc = apply_rela_bits(loc, val, 1, 20, 0);
else if (r_type == R_390_32)
- *(unsigned int *) loc = val;
+ rc = apply_rela_bits(loc, val, 0, 32, 0);
else if (r_type == R_390_64)
- *(unsigned long *) loc = val;
+ rc = apply_rela_bits(loc, val, 0, 64, 0);
break;
case R_390_PC16: /* PC relative 16 bit. */
case R_390_PC16DBL: /* PC relative 16 bit shifted by 1. */
@@ -227,15 +264,15 @@ apply_rela(Elf_Rela *rela, Elf_Addr base, Elf_Sym *symtab,
case R_390_PC64: /* PC relative 64 bit. */
val += rela->r_addend - loc;
if (r_type == R_390_PC16)
- *(unsigned short *) loc = val;
+ rc = apply_rela_bits(loc, val, 1, 16, 0);
else if (r_type == R_390_PC16DBL)
- *(unsigned short *) loc = val >> 1;
+ rc = apply_rela_bits(loc, val, 1, 16, 1);
else if (r_type == R_390_PC32DBL)
- *(unsigned int *) loc = val >> 1;
+ rc = apply_rela_bits(loc, val, 1, 32, 1);
else if (r_type == R_390_PC32)
- *(unsigned int *) loc = val;
+ rc = apply_rela_bits(loc, val, 1, 32, 0);
else if (r_type == R_390_PC64)
- *(unsigned long *) loc = val;
+ rc = apply_rela_bits(loc, val, 1, 64, 0);
break;
case R_390_GOT12: /* 12 bit GOT offset. */
case R_390_GOT16: /* 16 bit GOT offset. */
@@ -260,26 +297,24 @@ apply_rela(Elf_Rela *rela, Elf_Addr base, Elf_Sym *symtab,
val = info->got_offset + rela->r_addend;
if (r_type == R_390_GOT12 ||
r_type == R_390_GOTPLT12)
- *(unsigned short *) loc = (val & 0xfff) |
- (*(unsigned short *) loc & 0xf000);
+ rc = apply_rela_bits(loc, val, 0, 12, 0);
else if (r_type == R_390_GOT16 ||
r_type == R_390_GOTPLT16)
- *(unsigned short *) loc = val;
+ rc = apply_rela_bits(loc, val, 0, 16, 0);
else if (r_type == R_390_GOT20 ||
r_type == R_390_GOTPLT20)
- *(unsigned int *) loc =
- (*(unsigned int *) loc & 0xf00000ff) |
- (val & 0xfff) << 16 | (val & 0xff000) >> 4;
+ rc = apply_rela_bits(loc, val, 1, 20, 0);
else if (r_type == R_390_GOT32 ||
r_type == R_390_GOTPLT32)
- *(unsigned int *) loc = val;
- else if (r_type == R_390_GOTENT ||
- r_type == R_390_GOTPLTENT)
- *(unsigned int *) loc =
- (val + (Elf_Addr) me->module_core - loc) >> 1;
+ rc = apply_rela_bits(loc, val, 0, 32, 0);
else if (r_type == R_390_GOT64 ||
r_type == R_390_GOTPLT64)
- *(unsigned long *) loc = val;
+ rc = apply_rela_bits(loc, val, 0, 64, 0);
+ else if (r_type == R_390_GOTENT ||
+ r_type == R_390_GOTPLTENT) {
+ val += (Elf_Addr) me->module_core - loc;
+ rc = apply_rela_bits(loc, val, 1, 32, 1);
+ }
break;
case R_390_PLT16DBL: /* 16 bit PC rel. PLT shifted by 1. */
case R_390_PLT32DBL: /* 32 bit PC rel. PLT shifted by 1. */
@@ -321,17 +356,17 @@ apply_rela(Elf_Rela *rela, Elf_Addr base, Elf_Sym *symtab,
val += rela->r_addend - loc;
}
if (r_type == R_390_PLT16DBL)
- *(unsigned short *) loc = val >> 1;
+ rc = apply_rela_bits(loc, val, 1, 16, 1);
else if (r_type == R_390_PLTOFF16)
- *(unsigned short *) loc = val;
+ rc = apply_rela_bits(loc, val, 0, 16, 0);
else if (r_type == R_390_PLT32DBL)
- *(unsigned int *) loc = val >> 1;
+ rc = apply_rela_bits(loc, val, 1, 32, 1);
else if (r_type == R_390_PLT32 ||
r_type == R_390_PLTOFF32)
- *(unsigned int *) loc = val;
+ rc = apply_rela_bits(loc, val, 0, 32, 0);
else if (r_type == R_390_PLT64 ||
r_type == R_390_PLTOFF64)
- *(unsigned long *) loc = val;
+ rc = apply_rela_bits(loc, val, 0, 64, 0);
break;
case R_390_GOTOFF16: /* 16 bit offset to GOT. */
case R_390_GOTOFF32: /* 32 bit offset to GOT. */
@@ -339,20 +374,20 @@ apply_rela(Elf_Rela *rela, Elf_Addr base, Elf_Sym *symtab,
val = val + rela->r_addend -
((Elf_Addr) me->module_core + me->arch.got_offset);
if (r_type == R_390_GOTOFF16)
- *(unsigned short *) loc = val;
+ rc = apply_rela_bits(loc, val, 0, 16, 0);
else if (r_type == R_390_GOTOFF32)
- *(unsigned int *) loc = val;
+ rc = apply_rela_bits(loc, val, 0, 32, 0);
else if (r_type == R_390_GOTOFF64)
- *(unsigned long *) loc = val;
+ rc = apply_rela_bits(loc, val, 0, 64, 0);
break;
case R_390_GOTPC: /* 32 bit PC relative offset to GOT. */
case R_390_GOTPCDBL: /* 32 bit PC rel. off. to GOT shifted by 1. */
val = (Elf_Addr) me->module_core + me->arch.got_offset +
rela->r_addend - loc;
if (r_type == R_390_GOTPC)
- *(unsigned int *) loc = val;
+ rc = apply_rela_bits(loc, val, 1, 32, 0);
else if (r_type == R_390_GOTPCDBL)
- *(unsigned int *) loc = val >> 1;
+ rc = apply_rela_bits(loc, val, 1, 32, 1);
break;
case R_390_COPY:
case R_390_GLOB_DAT: /* Create GOT entry. */
@@ -360,19 +395,25 @@ apply_rela(Elf_Rela *rela, Elf_Addr base, Elf_Sym *symtab,
case R_390_RELATIVE: /* Adjust by program base. */
/* Only needed if we want to support loading of
modules linked with -shared. */
- break;
+ return -ENOEXEC;
default:
- printk(KERN_ERR "module %s: Unknown relocation: %u\n",
+ printk(KERN_ERR "module %s: unknown relocation: %u\n",
me->name, r_type);
return -ENOEXEC;
}
+ if (rc) {
+ printk(KERN_ERR "module %s: relocation error for symbol %s "
+ "(r_type %i, value 0x%lx)\n",
+ me->name, strtab + symtab[r_sym].st_name,
+ r_type, (unsigned long) val);
+ return rc;
+ }
return 0;
}
-int
-apply_relocate_add(Elf_Shdr *sechdrs, const char *strtab,
- unsigned int symindex, unsigned int relsec,
- struct module *me)
+int apply_relocate_add(Elf_Shdr *sechdrs, const char *strtab,
+ unsigned int symindex, unsigned int relsec,
+ struct module *me)
{
Elf_Addr base;
Elf_Sym *symtab;
@@ -388,7 +429,7 @@ apply_relocate_add(Elf_Shdr *sechdrs, const char *strtab,
n = sechdrs[relsec].sh_size / sizeof(Elf_Rela);
for (i = 0; i < n; i++, rela++) {
- rc = apply_rela(rela, base, symtab, me);
+ rc = apply_rela(rela, base, symtab, strtab, me);
if (rc)
return rc;
}
diff --git a/arch/s390/kernel/nmi.c b/arch/s390/kernel/nmi.c
index 7918fbea36b..504175ebf8b 100644
--- a/arch/s390/kernel/nmi.c
+++ b/arch/s390/kernel/nmi.c
@@ -293,7 +293,7 @@ void notrace s390_do_machine_check(struct pt_regs *regs)
* retry this instruction.
*/
spin_lock(&ipd_lock);
- tmp = get_clock();
+ tmp = get_tod_clock();
if (((tmp - last_ipd) >> 12) < MAX_IPD_TIME)
ipd_count++;
else
diff --git a/arch/s390/kernel/perf_cpum_cf.c b/arch/s390/kernel/perf_cpum_cf.c
index 86ec7447e1f..390d9ae57bb 100644
--- a/arch/s390/kernel/perf_cpum_cf.c
+++ b/arch/s390/kernel/perf_cpum_cf.c
@@ -367,13 +367,6 @@ static int __hw_perf_event_init(struct perf_event *event)
if (ev >= PERF_CPUM_CF_MAX_CTR)
return -EINVAL;
- /* The CPU measurement counter facility does not have any interrupts
- * to do sampling. Sampling must be provided by external means,
- * for example, by timers.
- */
- if (hwc->sample_period)
- return -EINVAL;
-
/* Use the hardware perf event structure to store the counter number
* in 'config' member and the counter set to which the counter belongs
* in the 'config_base'. The counter set (config_base) is then used
@@ -418,6 +411,12 @@ static int cpumf_pmu_event_init(struct perf_event *event)
case PERF_TYPE_HARDWARE:
case PERF_TYPE_HW_CACHE:
case PERF_TYPE_RAW:
+ /* The CPU measurement counter facility does not have overflow
+ * interrupts to do sampling. Sampling must be provided by
+ * external means, for example, by timers.
+ */
+ if (is_sampling_event(event))
+ return -ENOENT;
err = __hw_perf_event_init(event);
break;
default:
diff --git a/arch/s390/kernel/smp.c b/arch/s390/kernel/smp.c
index 7433a2f9e5c..549c9d173c0 100644
--- a/arch/s390/kernel/smp.c
+++ b/arch/s390/kernel/smp.c
@@ -365,16 +365,16 @@ void smp_emergency_stop(cpumask_t *cpumask)
u64 end;
int cpu;
- end = get_clock() + (1000000UL << 12);
+ end = get_tod_clock() + (1000000UL << 12);
for_each_cpu(cpu, cpumask) {
struct pcpu *pcpu = pcpu_devices + cpu;
set_bit(ec_stop_cpu, &pcpu->ec_mask);
while (__pcpu_sigp(pcpu->address, SIGP_EMERGENCY_SIGNAL,
0, NULL) == SIGP_CC_BUSY &&
- get_clock() < end)
+ get_tod_clock() < end)
cpu_relax();
}
- while (get_clock() < end) {
+ while (get_tod_clock() < end) {
for_each_cpu(cpu, cpumask)
if (pcpu_stopped(pcpu_devices + cpu))
cpumask_clear_cpu(cpu, cpumask);
@@ -694,7 +694,7 @@ static void __init smp_detect_cpus(void)
*/
static void __cpuinit smp_start_secondary(void *cpuvoid)
{
- S390_lowcore.last_update_clock = get_clock();
+ S390_lowcore.last_update_clock = get_tod_clock();
S390_lowcore.restart_stack = (unsigned long) restart_stack;
S390_lowcore.restart_fn = (unsigned long) do_restart;
S390_lowcore.restart_data = 0;
@@ -947,7 +947,7 @@ static ssize_t show_idle_time(struct device *dev,
unsigned int sequence;
do {
- now = get_clock();
+ now = get_tod_clock();
sequence = ACCESS_ONCE(idle->sequence);
idle_time = ACCESS_ONCE(idle->idle_time);
idle_enter = ACCESS_ONCE(idle->clock_idle_enter);
diff --git a/arch/s390/kernel/time.c b/arch/s390/kernel/time.c
index 0aa98db8a80..876546b9cfa 100644
--- a/arch/s390/kernel/time.c
+++ b/arch/s390/kernel/time.c
@@ -63,7 +63,7 @@ static DEFINE_PER_CPU(struct clock_event_device, comparators);
*/
unsigned long long notrace __kprobes sched_clock(void)
{
- return tod_to_ns(get_clock_monotonic());
+ return tod_to_ns(get_tod_clock_monotonic());
}
/*
@@ -194,7 +194,7 @@ static void stp_reset(void);
void read_persistent_clock(struct timespec *ts)
{
- tod_to_timeval(get_clock() - TOD_UNIX_EPOCH, ts);
+ tod_to_timeval(get_tod_clock() - TOD_UNIX_EPOCH, ts);
}
void read_boot_clock(struct timespec *ts)
@@ -204,7 +204,7 @@ void read_boot_clock(struct timespec *ts)
static cycle_t read_tod_clock(struct clocksource *cs)
{
- return get_clock();
+ return get_tod_clock();
}
static struct clocksource clocksource_tod = {
@@ -342,7 +342,7 @@ int get_sync_clock(unsigned long long *clock)
sw_ptr = &get_cpu_var(clock_sync_word);
sw0 = atomic_read(sw_ptr);
- *clock = get_clock();
+ *clock = get_tod_clock();
sw1 = atomic_read(sw_ptr);
put_cpu_var(clock_sync_word);
if (sw0 == sw1 && (sw0 & 0x80000000U))
@@ -486,7 +486,7 @@ static void etr_reset(void)
.p0 = 0, .p1 = 0, ._pad1 = 0, .ea = 0,
.es = 0, .sl = 0 };
if (etr_setr(&etr_eacr) == 0) {
- etr_tolec = get_clock();
+ etr_tolec = get_tod_clock();
set_bit(CLOCK_SYNC_HAS_ETR, &clock_sync_flags);
if (etr_port0_online && etr_port1_online)
set_bit(CLOCK_SYNC_ETR, &clock_sync_flags);
@@ -768,8 +768,8 @@ static int etr_sync_clock(void *data)
__ctl_set_bit(14, 21);
__ctl_set_bit(0, 29);
clock = ((unsigned long long) (aib->edf2.etv + 1)) << 32;
- old_clock = get_clock();
- if (set_clock(clock) == 0) {
+ old_clock = get_tod_clock();
+ if (set_tod_clock(clock) == 0) {
__udelay(1); /* Wait for the clock to start. */
__ctl_clear_bit(0, 29);
__ctl_clear_bit(14, 21);
@@ -845,7 +845,7 @@ static struct etr_eacr etr_handle_events(struct etr_eacr eacr)
* assume that this can have caused an stepping
* port switch.
*/
- etr_tolec = get_clock();
+ etr_tolec = get_tod_clock();
eacr.p0 = etr_port0_online;
if (!eacr.p0)
eacr.e0 = 0;
@@ -858,7 +858,7 @@ static struct etr_eacr etr_handle_events(struct etr_eacr eacr)
* assume that this can have caused an stepping
* port switch.
*/
- etr_tolec = get_clock();
+ etr_tolec = get_tod_clock();
eacr.p1 = etr_port1_online;
if (!eacr.p1)
eacr.e1 = 0;
@@ -974,7 +974,7 @@ static void etr_update_eacr(struct etr_eacr eacr)
etr_eacr = eacr;
etr_setr(&etr_eacr);
if (dp_changed)
- etr_tolec = get_clock();
+ etr_tolec = get_tod_clock();
}
/*
@@ -1012,7 +1012,7 @@ static void etr_work_fn(struct work_struct *work)
/* Store aib to get the current ETR status word. */
BUG_ON(etr_stetr(&aib) != 0);
etr_port0.esw = etr_port1.esw = aib.esw; /* Copy status word. */
- now = get_clock();
+ now = get_tod_clock();
/*
* Update the port information if the last stepping port change
@@ -1537,10 +1537,10 @@ static int stp_sync_clock(void *data)
if (stp_info.todoff[0] || stp_info.todoff[1] ||
stp_info.todoff[2] || stp_info.todoff[3] ||
stp_info.tmd != 2) {
- old_clock = get_clock();
+ old_clock = get_tod_clock();
rc = chsc_sstpc(stp_page, STP_OP_SYNC, 0);
if (rc == 0) {
- delta = adjust_time(old_clock, get_clock(), 0);
+ delta = adjust_time(old_clock, get_tod_clock(), 0);
fixup_clock_comparator(delta);
rc = chsc_sstpi(stp_page, &stp_info,
sizeof(struct stp_sstpi));
diff --git a/arch/s390/kernel/vmlinux.lds.S b/arch/s390/kernel/vmlinux.lds.S
index 79cb51adc74..35b13ed0af5 100644
--- a/arch/s390/kernel/vmlinux.lds.S
+++ b/arch/s390/kernel/vmlinux.lds.S
@@ -75,6 +75,10 @@ SECTIONS
EXIT_TEXT
}
+ .exit.data : {
+ EXIT_DATA
+ }
+
/* early.c uses stsi, which requires page aligned data. */
. = ALIGN(PAGE_SIZE);
INIT_DATA_SECTION(0x100)
diff --git a/arch/s390/kernel/vtime.c b/arch/s390/kernel/vtime.c
index ce9cc5aa203..a0042acbd98 100644
--- a/arch/s390/kernel/vtime.c
+++ b/arch/s390/kernel/vtime.c
@@ -191,7 +191,7 @@ cputime64_t s390_get_idle_time(int cpu)
unsigned int sequence;
do {
- now = get_clock();
+ now = get_tod_clock();
sequence = ACCESS_ONCE(idle->sequence);
idle_enter = ACCESS_ONCE(idle->clock_idle_enter);
idle_exit = ACCESS_ONCE(idle->clock_idle_exit);
diff --git a/arch/s390/kvm/interrupt.c b/arch/s390/kvm/interrupt.c
index 82c481ddef7..87418b50f21 100644
--- a/arch/s390/kvm/interrupt.c
+++ b/arch/s390/kvm/interrupt.c
@@ -362,7 +362,7 @@ static int kvm_cpu_has_interrupt(struct kvm_vcpu *vcpu)
}
if ((!rc) && (vcpu->arch.sie_block->ckc <
- get_clock() + vcpu->arch.sie_block->epoch)) {
+ get_tod_clock() + vcpu->arch.sie_block->epoch)) {
if ((!psw_extint_disabled(vcpu)) &&
(vcpu->arch.sie_block->gcr[0] & 0x800ul))
rc = 1;
@@ -402,7 +402,7 @@ int kvm_s390_handle_wait(struct kvm_vcpu *vcpu)
goto no_timer;
}
- now = get_clock() + vcpu->arch.sie_block->epoch;
+ now = get_tod_clock() + vcpu->arch.sie_block->epoch;
if (vcpu->arch.sie_block->ckc < now) {
__unset_cpu_idle(vcpu);
return 0;
@@ -492,7 +492,7 @@ void kvm_s390_deliver_pending_interrupts(struct kvm_vcpu *vcpu)
}
if ((vcpu->arch.sie_block->ckc <
- get_clock() + vcpu->arch.sie_block->epoch))
+ get_tod_clock() + vcpu->arch.sie_block->epoch))
__try_deliver_ckc_interrupt(vcpu);
if (atomic_read(&fi->active)) {
diff --git a/arch/s390/kvm/kvm-s390.c b/arch/s390/kvm/kvm-s390.c
index f090e819bf7..2923781590a 100644
--- a/arch/s390/kvm/kvm-s390.c
+++ b/arch/s390/kvm/kvm-s390.c
@@ -147,7 +147,7 @@ int kvm_dev_ioctl_check_extension(long ext)
r = KVM_MAX_VCPUS;
break;
case KVM_CAP_S390_COW:
- r = sclp_get_fac85() & 0x2;
+ r = MACHINE_HAS_ESOP;
break;
default:
r = 0;
diff --git a/arch/s390/lib/delay.c b/arch/s390/lib/delay.c
index 42d0cf89121..c61b9fad43c 100644
--- a/arch/s390/lib/delay.c
+++ b/arch/s390/lib/delay.c
@@ -32,7 +32,7 @@ static void __udelay_disabled(unsigned long long usecs)
unsigned long cr0, cr6, new;
u64 clock_saved, end;
- end = get_clock() + (usecs << 12);
+ end = get_tod_clock() + (usecs << 12);
clock_saved = local_tick_disable();
__ctl_store(cr0, 0, 0);
__ctl_store(cr6, 6, 6);
@@ -45,7 +45,7 @@ static void __udelay_disabled(unsigned long long usecs)
set_clock_comparator(end);
vtime_stop_cpu();
local_irq_disable();
- } while (get_clock() < end);
+ } while (get_tod_clock() < end);
lockdep_on();
__ctl_load(cr0, 0, 0);
__ctl_load(cr6, 6, 6);
@@ -56,7 +56,7 @@ static void __udelay_enabled(unsigned long long usecs)
{
u64 clock_saved, end;
- end = get_clock() + (usecs << 12);
+ end = get_tod_clock() + (usecs << 12);
do {
clock_saved = 0;
if (end < S390_lowcore.clock_comparator) {
@@ -67,7 +67,7 @@ static void __udelay_enabled(unsigned long long usecs)
local_irq_disable();
if (clock_saved)
local_tick_enable(clock_saved);
- } while (get_clock() < end);
+ } while (get_tod_clock() < end);
}
/*
@@ -111,8 +111,8 @@ void udelay_simple(unsigned long long usecs)
{
u64 end;
- end = get_clock() + (usecs << 12);
- while (get_clock() < end)
+ end = get_tod_clock() + (usecs << 12);
+ while (get_tod_clock() < end)
cpu_relax();
}
@@ -122,10 +122,10 @@ void __ndelay(unsigned long long nsecs)
nsecs <<= 9;
do_div(nsecs, 125);
- end = get_clock() + nsecs;
+ end = get_tod_clock() + nsecs;
if (nsecs & ~0xfffUL)
__udelay(nsecs >> 12);
- while (get_clock() < end)
+ while (get_tod_clock() < end)
barrier();
}
EXPORT_SYMBOL(__ndelay);
diff --git a/arch/s390/lib/uaccess_pt.c b/arch/s390/lib/uaccess_pt.c
index 9017a63dda3..a70ee84c024 100644
--- a/arch/s390/lib/uaccess_pt.c
+++ b/arch/s390/lib/uaccess_pt.c
@@ -50,7 +50,7 @@ static __always_inline unsigned long follow_table(struct mm_struct *mm,
ptep = pte_offset_map(pmd, addr);
if (!pte_present(*ptep))
return -0x11UL;
- if (write && !pte_write(*ptep))
+ if (write && (!pte_write(*ptep) || !pte_dirty(*ptep)))
return -0x04UL;
return (pte_val(*ptep) & PAGE_MASK) + (addr & ~PAGE_MASK);
diff --git a/arch/s390/mm/mmap.c b/arch/s390/mm/mmap.c
index c59a5efa58b..06bafec0027 100644
--- a/arch/s390/mm/mmap.c
+++ b/arch/s390/mm/mmap.c
@@ -101,12 +101,15 @@ void arch_pick_mmap_layout(struct mm_struct *mm)
#else
-int s390_mmap_check(unsigned long addr, unsigned long len)
+int s390_mmap_check(unsigned long addr, unsigned long len, unsigned long flags)
{
int rc;
- if (!is_compat_task() &&
- len >= TASK_SIZE && TASK_SIZE < (1UL << 53)) {
+ if (is_compat_task() || (TASK_SIZE >= (1UL << 53)))
+ return 0;
+ if (!(flags & MAP_FIXED))
+ addr = 0;
+ if ((addr + len) >= TASK_SIZE) {
rc = crst_table_upgrade(current->mm, 1UL << 53);
if (rc)
return rc;
diff --git a/arch/s390/mm/pageattr.c b/arch/s390/mm/pageattr.c
index 29ccee3651f..d21040ed5e5 100644
--- a/arch/s390/mm/pageattr.c
+++ b/arch/s390/mm/pageattr.c
@@ -127,7 +127,7 @@ void kernel_map_pages(struct page *page, int numpages, int enable)
pte_val(*pte) = _PAGE_TYPE_EMPTY;
continue;
}
- *pte = mk_pte_phys(address, __pgprot(_PAGE_TYPE_RW));
+ pte_val(*pte) = __pa(address);
}
}
diff --git a/arch/s390/mm/vmem.c b/arch/s390/mm/vmem.c
index 6ed1426d27c..79699f46a44 100644
--- a/arch/s390/mm/vmem.c
+++ b/arch/s390/mm/vmem.c
@@ -85,11 +85,9 @@ static int vmem_add_mem(unsigned long start, unsigned long size, int ro)
pud_t *pu_dir;
pmd_t *pm_dir;
pte_t *pt_dir;
- pte_t pte;
int ret = -ENOMEM;
while (address < end) {
- pte = mk_pte_phys(address, __pgprot(ro ? _PAGE_RO : 0));
pg_dir = pgd_offset_k(address);
if (pgd_none(*pg_dir)) {
pu_dir = vmem_pud_alloc();
@@ -101,9 +99,9 @@ static int vmem_add_mem(unsigned long start, unsigned long size, int ro)
#if defined(CONFIG_64BIT) && !defined(CONFIG_DEBUG_PAGEALLOC)
if (MACHINE_HAS_EDAT2 && pud_none(*pu_dir) && address &&
!(address & ~PUD_MASK) && (address + PUD_SIZE <= end)) {
- pte_val(pte) |= _REGION3_ENTRY_LARGE;
- pte_val(pte) |= _REGION_ENTRY_TYPE_R3;
- pud_val(*pu_dir) = pte_val(pte);
+ pud_val(*pu_dir) = __pa(address) |
+ _REGION_ENTRY_TYPE_R3 | _REGION3_ENTRY_LARGE |
+ (ro ? _REGION_ENTRY_RO : 0);
address += PUD_SIZE;
continue;
}
@@ -118,8 +116,9 @@ static int vmem_add_mem(unsigned long start, unsigned long size, int ro)
#if defined(CONFIG_64BIT) && !defined(CONFIG_DEBUG_PAGEALLOC)
if (MACHINE_HAS_EDAT1 && pmd_none(*pm_dir) && address &&
!(address & ~PMD_MASK) && (address + PMD_SIZE <= end)) {
- pte_val(pte) |= _SEGMENT_ENTRY_LARGE;
- pmd_val(*pm_dir) = pte_val(pte);
+ pmd_val(*pm_dir) = __pa(address) |
+ _SEGMENT_ENTRY | _SEGMENT_ENTRY_LARGE |
+ (ro ? _SEGMENT_ENTRY_RO : 0);
address += PMD_SIZE;
continue;
}
@@ -132,7 +131,7 @@ static int vmem_add_mem(unsigned long start, unsigned long size, int ro)
}
pt_dir = pte_offset_kernel(pm_dir, address);
- *pt_dir = pte;
+ pte_val(*pt_dir) = __pa(address) | (ro ? _PAGE_RO : 0);
address += PAGE_SIZE;
}
ret = 0;
@@ -199,7 +198,6 @@ int __meminit vmemmap_populate(struct page *start, unsigned long nr, int node)
pud_t *pu_dir;
pmd_t *pm_dir;
pte_t *pt_dir;
- pte_t pte;
int ret = -ENOMEM;
start_addr = (unsigned long) start;
@@ -237,9 +235,8 @@ int __meminit vmemmap_populate(struct page *start, unsigned long nr, int node)
new_page = vmemmap_alloc_block(PMD_SIZE, node);
if (!new_page)
goto out;
- pte = mk_pte_phys(__pa(new_page), PAGE_RW);
- pte_val(pte) |= _SEGMENT_ENTRY_LARGE;
- pmd_val(*pm_dir) = pte_val(pte);
+ pmd_val(*pm_dir) = __pa(new_page) |
+ _SEGMENT_ENTRY | _SEGMENT_ENTRY_LARGE;
address = (address + PMD_SIZE) & PMD_MASK;
continue;
}
@@ -260,8 +257,7 @@ int __meminit vmemmap_populate(struct page *start, unsigned long nr, int node)
new_page =__pa(vmem_alloc_pages(0));
if (!new_page)
goto out;
- pte = pfn_pte(new_page >> PAGE_SHIFT, PAGE_KERNEL);
- *pt_dir = pte;
+ pte_val(*pt_dir) = __pa(new_page);
}
address += PAGE_SIZE;
}
diff --git a/arch/s390/net/bpf_jit_comp.c b/arch/s390/net/bpf_jit_comp.c
index bb284419b0f..0972e91cced 100644
--- a/arch/s390/net/bpf_jit_comp.c
+++ b/arch/s390/net/bpf_jit_comp.c
@@ -7,6 +7,7 @@
*/
#include <linux/moduleloader.h>
#include <linux/netdevice.h>
+#include <linux/if_vlan.h>
#include <linux/filter.h>
#include <asm/cacheflush.h>
#include <asm/processor.h>
@@ -254,6 +255,8 @@ static void bpf_jit_noleaks(struct bpf_jit *jit, struct sock_filter *filter)
case BPF_S_ANC_HATYPE:
case BPF_S_ANC_RXHASH:
case BPF_S_ANC_CPU:
+ case BPF_S_ANC_VLAN_TAG:
+ case BPF_S_ANC_VLAN_TAG_PRESENT:
case BPF_S_RET_K:
/* first instruction sets A register */
break;
@@ -699,6 +702,24 @@ call_fn: /* lg %r1,<d(function)>(%r13) */
/* l %r5,<d(rxhash)>(%r2) */
EMIT4_DISP(0x58502000, offsetof(struct sk_buff, rxhash));
break;
+ case BPF_S_ANC_VLAN_TAG:
+ case BPF_S_ANC_VLAN_TAG_PRESENT:
+ BUILD_BUG_ON(FIELD_SIZEOF(struct sk_buff, vlan_tci) != 2);
+ BUILD_BUG_ON(VLAN_TAG_PRESENT != 0x1000);
+ /* lhi %r5,0 */
+ EMIT4(0xa7580000);
+ /* icm %r5,3,<d(vlan_tci)>(%r2) */
+ EMIT4_DISP(0xbf532000, offsetof(struct sk_buff, vlan_tci));
+ if (filter->code == BPF_S_ANC_VLAN_TAG) {
+ /* nill %r5,0xefff */
+ EMIT4_IMM(0xa5570000, ~VLAN_TAG_PRESENT);
+ } else {
+ /* nill %r5,0x1000 */
+ EMIT4_IMM(0xa5570000, VLAN_TAG_PRESENT);
+ /* srl %r5,12 */
+ EMIT4_DISP(0x88500000, 12);
+ }
+ break;
case BPF_S_ANC_CPU: /* A = smp_processor_id() */
#ifdef CONFIG_SMP
/* l %r5,<d(cpu_nr)> */
diff --git a/arch/s390/pci/pci.c b/arch/s390/pci/pci.c
index 60e0372545d..27b4c17855b 100644
--- a/arch/s390/pci/pci.c
+++ b/arch/s390/pci/pci.c
@@ -51,8 +51,7 @@ EXPORT_SYMBOL_GPL(zpci_list);
DEFINE_MUTEX(zpci_list_lock);
EXPORT_SYMBOL_GPL(zpci_list_lock);
-struct pci_hp_callback_ops hotplug_ops;
-EXPORT_SYMBOL_GPL(hotplug_ops);
+static struct pci_hp_callback_ops *hotplug_ops;
static DECLARE_BITMAP(zpci_domain, ZPCI_NR_DEVICES);
static DEFINE_SPINLOCK(zpci_domain_lock);
@@ -974,8 +973,8 @@ int zpci_create_device(struct zpci_dev *zdev)
mutex_lock(&zpci_list_lock);
list_add_tail(&zdev->entry, &zpci_list);
- if (hotplug_ops.create_slot)
- hotplug_ops.create_slot(zdev);
+ if (hotplug_ops)
+ hotplug_ops->create_slot(zdev);
mutex_unlock(&zpci_list_lock);
if (zdev->state == ZPCI_FN_STATE_STANDBY)
@@ -989,8 +988,8 @@ int zpci_create_device(struct zpci_dev *zdev)
out_start:
mutex_lock(&zpci_list_lock);
list_del(&zdev->entry);
- if (hotplug_ops.remove_slot)
- hotplug_ops.remove_slot(zdev);
+ if (hotplug_ops)
+ hotplug_ops->remove_slot(zdev);
mutex_unlock(&zpci_list_lock);
out_bus:
zpci_free_domain(zdev);
@@ -1072,13 +1071,29 @@ static void zpci_mem_exit(void)
kmem_cache_destroy(zdev_fmb_cache);
}
-unsigned int pci_probe = 1;
-EXPORT_SYMBOL_GPL(pci_probe);
+void zpci_register_hp_ops(struct pci_hp_callback_ops *ops)
+{
+ mutex_lock(&zpci_list_lock);
+ hotplug_ops = ops;
+ mutex_unlock(&zpci_list_lock);
+}
+EXPORT_SYMBOL_GPL(zpci_register_hp_ops);
+
+void zpci_deregister_hp_ops(void)
+{
+ mutex_lock(&zpci_list_lock);
+ hotplug_ops = NULL;
+ mutex_unlock(&zpci_list_lock);
+}
+EXPORT_SYMBOL_GPL(zpci_deregister_hp_ops);
+
+unsigned int s390_pci_probe = 1;
+EXPORT_SYMBOL_GPL(s390_pci_probe);
char * __init pcibios_setup(char *str)
{
if (!strcmp(str, "off")) {
- pci_probe = 0;
+ s390_pci_probe = 0;
return NULL;
}
return str;
@@ -1088,7 +1103,7 @@ static int __init pci_base_init(void)
{
int rc;
- if (!pci_probe)
+ if (!s390_pci_probe)
return 0;
if (!test_facility(2) || !test_facility(69)
diff --git a/arch/s390/pci/pci_clp.c b/arch/s390/pci/pci_clp.c
index 2c847143cbd..f339fe2feb1 100644
--- a/arch/s390/pci/pci_clp.c
+++ b/arch/s390/pci/pci_clp.c
@@ -19,25 +19,25 @@
* Call Logical Processor
* Retry logic is handled by the caller.
*/
-static inline u8 clp_instr(void *req)
+static inline u8 clp_instr(void *data)
{
- u64 ilpm;
+ struct { u8 _[CLP_BLK_SIZE]; } *req = data;
+ u64 ignored;
u8 cc;
asm volatile (
- " .insn rrf,0xb9a00000,%[ilpm],%[req],0x0,0x2\n"
+ " .insn rrf,0xb9a00000,%[ign],%[req],0x0,0x2\n"
" ipm %[cc]\n"
" srl %[cc],28\n"
- : [cc] "=d" (cc), [ilpm] "=d" (ilpm)
+ : [cc] "=d" (cc), [ign] "=d" (ignored), "+m" (*req)
: [req] "a" (req)
- : "cc", "memory");
+ : "cc");
return cc;
}
static void *clp_alloc_block(void)
{
- struct page *page = alloc_pages(GFP_KERNEL, get_order(CLP_BLK_SIZE));
- return (page) ? page_address(page) : NULL;
+ return (void *) __get_free_pages(GFP_KERNEL, get_order(CLP_BLK_SIZE));
}
static void clp_free_block(void *ptr)
diff --git a/drivers/ata/Kconfig b/drivers/ata/Kconfig
index cdadce23e66..4cfb7200260 100644
--- a/drivers/ata/Kconfig
+++ b/drivers/ata/Kconfig
@@ -14,7 +14,7 @@ menuconfig ATA
tristate "Serial ATA and Parallel ATA drivers"
depends on HAS_IOMEM
depends on BLOCK
- depends on !(M32R || M68K) || BROKEN
+ depends on !(M32R || M68K || S390) || BROKEN
select SCSI
---help---
If you want to use a ATA hard disk, ATA tape drive, ATA CD-ROM or
diff --git a/drivers/gpio/Kconfig b/drivers/gpio/Kconfig
index 1855a6fd2b0..b89d250f56e 100644
--- a/drivers/gpio/Kconfig
+++ b/drivers/gpio/Kconfig
@@ -277,7 +277,7 @@ config GPIO_ICH
config GPIO_VX855
tristate "VIA VX855/VX875 GPIO"
- depends on PCI
+ depends on PCI && GENERIC_HARDIRQS
select MFD_CORE
select MFD_VX855
help
@@ -599,7 +599,7 @@ config GPIO_TIMBERDALE
config GPIO_RDC321X
tristate "RDC R-321x GPIO support"
- depends on PCI
+ depends on PCI && GENERIC_HARDIRQS
select MFD_CORE
select MFD_RDC321X
help
diff --git a/drivers/media/radio/Kconfig b/drivers/media/radio/Kconfig
index 8090b87b306..9e580166161 100644
--- a/drivers/media/radio/Kconfig
+++ b/drivers/media/radio/Kconfig
@@ -180,7 +180,7 @@ config RADIO_TIMBERDALE
config RADIO_WL1273
tristate "Texas Instruments WL1273 I2C FM Radio"
- depends on I2C && VIDEO_V4L2
+ depends on I2C && VIDEO_V4L2 && GENERIC_HARDIRQS
select MFD_CORE
select MFD_WL1273_CORE
select FW_LOADER
diff --git a/drivers/net/ethernet/cadence/Kconfig b/drivers/net/ethernet/cadence/Kconfig
index ceb0de0cf62..1194446f859 100644
--- a/drivers/net/ethernet/cadence/Kconfig
+++ b/drivers/net/ethernet/cadence/Kconfig
@@ -22,6 +22,7 @@ if NET_CADENCE
config ARM_AT91_ETHER
tristate "AT91RM9200 Ethernet support"
+ depends on GENERIC_HARDIRQS
select NET_CORE
select MACB
---help---
diff --git a/drivers/net/phy/Kconfig b/drivers/net/phy/Kconfig
index 961f0b29391..450345261bd 100644
--- a/drivers/net/phy/Kconfig
+++ b/drivers/net/phy/Kconfig
@@ -4,7 +4,6 @@
menuconfig PHYLIB
tristate "PHY Device support and infrastructure"
- depends on !S390
depends on NETDEVICES
help
Ethernet controllers are usually attached to PHY
diff --git a/drivers/parport/Kconfig b/drivers/parport/Kconfig
index 0e60438ebe3..24e12d4d176 100644
--- a/drivers/parport/Kconfig
+++ b/drivers/parport/Kconfig
@@ -35,7 +35,7 @@ if PARPORT
config PARPORT_PC
tristate "PC-style hardware"
- depends on (!SPARC64 || PCI) && !SPARC32 && !M32R && !FRV && \
+ depends on (!SPARC64 || PCI) && !SPARC32 && !M32R && !FRV && !S390 && \
(!M68K || ISA) && !MN10300 && !AVR32 && !BLACKFIN && !XTENSA
---help---
You should say Y here if you have a PC-style parallel port. All
diff --git a/drivers/pci/hotplug/s390_pci_hpc.c b/drivers/pci/hotplug/s390_pci_hpc.c
index dee68e0698e..7db249a2501 100644
--- a/drivers/pci/hotplug/s390_pci_hpc.c
+++ b/drivers/pci/hotplug/s390_pci_hpc.c
@@ -172,25 +172,6 @@ error:
return -ENOMEM;
}
-static int __init init_pci_slots(void)
-{
- struct zpci_dev *zdev;
- int device = 0;
-
- /*
- * Create a structure for each slot, and register that slot
- * with the pci_hotplug subsystem.
- */
- mutex_lock(&zpci_list_lock);
- list_for_each_entry(zdev, &zpci_list, entry) {
- init_pci_slot(zdev);
- device++;
- }
-
- mutex_unlock(&zpci_list_lock);
- return (device) ? 0 : -ENODEV;
-}
-
static void exit_pci_slot(struct zpci_dev *zdev)
{
struct list_head *tmp, *n;
@@ -205,6 +186,26 @@ static void exit_pci_slot(struct zpci_dev *zdev)
}
}
+static struct pci_hp_callback_ops hp_ops = {
+ .create_slot = init_pci_slot,
+ .remove_slot = exit_pci_slot,
+};
+
+static void __init init_pci_slots(void)
+{
+ struct zpci_dev *zdev;
+
+ /*
+ * Create a structure for each slot, and register that slot
+ * with the pci_hotplug subsystem.
+ */
+ mutex_lock(&zpci_list_lock);
+ list_for_each_entry(zdev, &zpci_list, entry) {
+ init_pci_slot(zdev);
+ }
+ mutex_unlock(&zpci_list_lock);
+}
+
static void __exit exit_pci_slots(void)
{
struct list_head *tmp, *n;
@@ -224,28 +225,19 @@ static void __exit exit_pci_slots(void)
static int __init pci_hotplug_s390_init(void)
{
- /*
- * Do specific initialization stuff for your driver here
- * like initializing your controller hardware (if any) and
- * determining the number of slots you have in the system
- * right now.
- */
-
- if (!pci_probe)
+ if (!s390_pci_probe)
return -EOPNOTSUPP;
- /* register callbacks for slot handling from arch code */
- mutex_lock(&zpci_list_lock);
- hotplug_ops.create_slot = init_pci_slot;
- hotplug_ops.remove_slot = exit_pci_slot;
- mutex_unlock(&zpci_list_lock);
- pr_info("registered hotplug slot callbacks\n");
- return init_pci_slots();
+ zpci_register_hp_ops(&hp_ops);
+ init_pci_slots();
+
+ return 0;
}
static void __exit pci_hotplug_s390_exit(void)
{
exit_pci_slots();
+ zpci_deregister_hp_ops();
}
module_init(pci_hotplug_s390_init);
diff --git a/drivers/s390/block/dasd.c b/drivers/s390/block/dasd.c
index 29225e1c159..f1b7fdc58a5 100644
--- a/drivers/s390/block/dasd.c
+++ b/drivers/s390/block/dasd.c
@@ -1352,7 +1352,7 @@ int dasd_term_IO(struct dasd_ccw_req *cqr)
switch (rc) {
case 0: /* termination successful */
cqr->status = DASD_CQR_CLEAR_PENDING;
- cqr->stopclk = get_clock();
+ cqr->stopclk = get_tod_clock();
cqr->starttime = 0;
DBF_DEV_EVENT(DBF_DEBUG, device,
"terminate cqr %p successful",
@@ -1420,7 +1420,7 @@ int dasd_start_IO(struct dasd_ccw_req *cqr)
cqr->status = DASD_CQR_ERROR;
return -EIO;
}
- cqr->startclk = get_clock();
+ cqr->startclk = get_tod_clock();
cqr->starttime = jiffies;
cqr->retries--;
if (!test_bit(DASD_CQR_VERIFY_PATH, &cqr->flags)) {
@@ -1623,7 +1623,7 @@ void dasd_int_handler(struct ccw_device *cdev, unsigned long intparm,
return;
}
- now = get_clock();
+ now = get_tod_clock();
cqr = (struct dasd_ccw_req *) intparm;
/* check for conditions that should be handled immediately */
if (!cqr ||
@@ -1963,7 +1963,7 @@ int dasd_flush_device_queue(struct dasd_device *device)
}
break;
case DASD_CQR_QUEUED:
- cqr->stopclk = get_clock();
+ cqr->stopclk = get_tod_clock();
cqr->status = DASD_CQR_CLEARED;
break;
default: /* no need to modify the others */
@@ -2210,7 +2210,7 @@ static int _dasd_sleep_on(struct dasd_ccw_req *maincqr, int interruptible)
wait_event(generic_waitq, _wait_for_wakeup(cqr));
}
- maincqr->endclk = get_clock();
+ maincqr->endclk = get_tod_clock();
if ((maincqr->status != DASD_CQR_DONE) &&
(maincqr->intrc != -ERESTARTSYS))
dasd_log_sense(maincqr, &maincqr->irb);
@@ -2340,7 +2340,7 @@ int dasd_cancel_req(struct dasd_ccw_req *cqr)
"Cancelling request %p failed with rc=%d\n",
cqr, rc);
} else {
- cqr->stopclk = get_clock();
+ cqr->stopclk = get_tod_clock();
}
break;
default: /* already finished or clear pending - do nothing */
@@ -2568,7 +2568,7 @@ restart:
}
/* Rechain finished requests to final queue */
- cqr->endclk = get_clock();
+ cqr->endclk = get_tod_clock();
list_move_tail(&cqr->blocklist, final_queue);
}
}
@@ -2711,7 +2711,7 @@ restart_cb:
}
/* call the callback function */
spin_lock_irq(&block->request_queue_lock);
- cqr->endclk = get_clock();
+ cqr->endclk = get_tod_clock();
list_del_init(&cqr->blocklist);
__dasd_cleanup_cqr(cqr);
spin_unlock_irq(&block->request_queue_lock);
@@ -3042,12 +3042,15 @@ void dasd_generic_remove(struct ccw_device *cdev)
cdev->handler = NULL;
device = dasd_device_from_cdev(cdev);
- if (IS_ERR(device))
+ if (IS_ERR(device)) {
+ dasd_remove_sysfs_files(cdev);
return;
+ }
if (test_and_set_bit(DASD_FLAG_OFFLINE, &device->flags) &&
!test_bit(DASD_FLAG_SAFE_OFFLINE_RUNNING, &device->flags)) {
/* Already doing offline processing */
dasd_put_device(device);
+ dasd_remove_sysfs_files(cdev);
return;
}
/*
@@ -3504,7 +3507,7 @@ static struct dasd_ccw_req *dasd_generic_build_rdc(struct dasd_device *device,
cqr->memdev = device;
cqr->expires = 10*HZ;
cqr->retries = 256;
- cqr->buildclk = get_clock();
+ cqr->buildclk = get_tod_clock();
cqr->status = DASD_CQR_FILLED;
return cqr;
}
diff --git a/drivers/s390/block/dasd_3990_erp.c b/drivers/s390/block/dasd_3990_erp.c
index f8212d54013..d2613471368 100644
--- a/drivers/s390/block/dasd_3990_erp.c
+++ b/drivers/s390/block/dasd_3990_erp.c
@@ -229,7 +229,7 @@ dasd_3990_erp_DCTL(struct dasd_ccw_req * erp, char modifier)
dctl_cqr->expires = 5 * 60 * HZ;
dctl_cqr->retries = 2;
- dctl_cqr->buildclk = get_clock();
+ dctl_cqr->buildclk = get_tod_clock();
dctl_cqr->status = DASD_CQR_FILLED;
@@ -1719,7 +1719,7 @@ dasd_3990_erp_action_1B_32(struct dasd_ccw_req * default_erp, char *sense)
erp->magic = default_erp->magic;
erp->expires = default_erp->expires;
erp->retries = 256;
- erp->buildclk = get_clock();
+ erp->buildclk = get_tod_clock();
erp->status = DASD_CQR_FILLED;
/* remove the default erp */
@@ -2322,7 +2322,7 @@ static struct dasd_ccw_req *dasd_3990_erp_add_erp(struct dasd_ccw_req *cqr)
DBF_DEV_EVENT(DBF_ERR, device, "%s",
"Unable to allocate ERP request");
cqr->status = DASD_CQR_FAILED;
- cqr->stopclk = get_clock ();
+ cqr->stopclk = get_tod_clock();
} else {
DBF_DEV_EVENT(DBF_ERR, device,
"Unable to allocate ERP request "
@@ -2364,7 +2364,7 @@ static struct dasd_ccw_req *dasd_3990_erp_add_erp(struct dasd_ccw_req *cqr)
erp->magic = cqr->magic;
erp->expires = cqr->expires;
erp->retries = 256;
- erp->buildclk = get_clock();
+ erp->buildclk = get_tod_clock();
erp->status = DASD_CQR_FILLED;
return erp;
diff --git a/drivers/s390/block/dasd_alias.c b/drivers/s390/block/dasd_alias.c
index 6b556995bb3..a2597e683e7 100644
--- a/drivers/s390/block/dasd_alias.c
+++ b/drivers/s390/block/dasd_alias.c
@@ -448,7 +448,7 @@ static int read_unit_address_configuration(struct dasd_device *device,
ccw->count = sizeof(*(lcu->uac));
ccw->cda = (__u32)(addr_t) lcu->uac;
- cqr->buildclk = get_clock();
+ cqr->buildclk = get_tod_clock();
cqr->status = DASD_CQR_FILLED;
/* need to unset flag here to detect race with summary unit check */
@@ -733,7 +733,7 @@ static int reset_summary_unit_check(struct alias_lcu *lcu,
cqr->memdev = device;
cqr->block = NULL;
cqr->expires = 5 * HZ;
- cqr->buildclk = get_clock();
+ cqr->buildclk = get_tod_clock();
cqr->status = DASD_CQR_FILLED;
rc = dasd_sleep_on_immediatly(cqr);
diff --git a/drivers/s390/block/dasd_diag.c b/drivers/s390/block/dasd_diag.c
index 704488d0f81..cc060335852 100644
--- a/drivers/s390/block/dasd_diag.c
+++ b/drivers/s390/block/dasd_diag.c
@@ -184,14 +184,14 @@ dasd_start_diag(struct dasd_ccw_req * cqr)
private->iob.bio_list = dreq->bio;
private->iob.flaga = DASD_DIAG_FLAGA_DEFAULT;
- cqr->startclk = get_clock();
+ cqr->startclk = get_tod_clock();
cqr->starttime = jiffies;
cqr->retries--;
rc = dia250(&private->iob, RW_BIO);
switch (rc) {
case 0: /* Synchronous I/O finished successfully */
- cqr->stopclk = get_clock();
+ cqr->stopclk = get_tod_clock();
cqr->status = DASD_CQR_SUCCESS;
/* Indicate to calling function that only a dasd_schedule_bh()
and no timer is needed */
@@ -222,7 +222,7 @@ dasd_diag_term_IO(struct dasd_ccw_req * cqr)
mdsk_term_io(device);
mdsk_init_io(device, device->block->bp_block, 0, NULL);
cqr->status = DASD_CQR_CLEAR_PENDING;
- cqr->stopclk = get_clock();
+ cqr->stopclk = get_tod_clock();
dasd_schedule_device_bh(device);
return 0;
}
@@ -276,7 +276,7 @@ static void dasd_ext_handler(struct ext_code ext_code,
return;
}
- cqr->stopclk = get_clock();
+ cqr->stopclk = get_tod_clock();
expires = 0;
if ((ext_code.subcode & 0xff) == 0) {
@@ -556,7 +556,7 @@ static struct dasd_ccw_req *dasd_diag_build_cp(struct dasd_device *memdev,
}
}
cqr->retries = DIAG_MAX_RETRIES;
- cqr->buildclk = get_clock();
+ cqr->buildclk = get_tod_clock();
if (blk_noretry_request(req) ||
block->base->features & DASD_FEATURE_FAILFAST)
set_bit(DASD_CQR_FLAGS_FAILFAST, &cqr->flags);
diff --git a/drivers/s390/block/dasd_eckd.c b/drivers/s390/block/dasd_eckd.c
index e37bc1620d1..33f26bfa62f 100644
--- a/drivers/s390/block/dasd_eckd.c
+++ b/drivers/s390/block/dasd_eckd.c
@@ -862,7 +862,7 @@ static void dasd_eckd_fill_rcd_cqr(struct dasd_device *device,
cqr->expires = 10*HZ;
cqr->lpm = lpm;
cqr->retries = 256;
- cqr->buildclk = get_clock();
+ cqr->buildclk = get_tod_clock();
cqr->status = DASD_CQR_FILLED;
set_bit(DASD_CQR_VERIFY_PATH, &cqr->flags);
}
@@ -1449,7 +1449,7 @@ static int dasd_eckd_read_features(struct dasd_device *device)
ccw->count = sizeof(struct dasd_rssd_features);
ccw->cda = (__u32)(addr_t) features;
- cqr->buildclk = get_clock();
+ cqr->buildclk = get_tod_clock();
cqr->status = DASD_CQR_FILLED;
rc = dasd_sleep_on(cqr);
if (rc == 0) {
@@ -1501,7 +1501,7 @@ static struct dasd_ccw_req *dasd_eckd_build_psf_ssc(struct dasd_device *device,
cqr->block = NULL;
cqr->retries = 256;
cqr->expires = 10*HZ;
- cqr->buildclk = get_clock();
+ cqr->buildclk = get_tod_clock();
cqr->status = DASD_CQR_FILLED;
return cqr;
}
@@ -1841,7 +1841,7 @@ dasd_eckd_analysis_ccw(struct dasd_device *device)
cqr->startdev = device;
cqr->memdev = device;
cqr->retries = 255;
- cqr->buildclk = get_clock();
+ cqr->buildclk = get_tod_clock();
cqr->status = DASD_CQR_FILLED;
return cqr;
}
@@ -2241,7 +2241,7 @@ dasd_eckd_format_device(struct dasd_device * device,
fcp->startdev = device;
fcp->memdev = device;
fcp->retries = 256;
- fcp->buildclk = get_clock();
+ fcp->buildclk = get_tod_clock();
fcp->status = DASD_CQR_FILLED;
return fcp;
}
@@ -2530,7 +2530,7 @@ static struct dasd_ccw_req *dasd_eckd_build_cp_cmd_single(
cqr->expires = startdev->default_expires * HZ; /* default 5 minutes */
cqr->lpm = startdev->path_data.ppm;
cqr->retries = 256;
- cqr->buildclk = get_clock();
+ cqr->buildclk = get_tod_clock();
cqr->status = DASD_CQR_FILLED;
return cqr;
}
@@ -2705,7 +2705,7 @@ static struct dasd_ccw_req *dasd_eckd_build_cp_cmd_track(
cqr->expires = startdev->default_expires * HZ; /* default 5 minutes */
cqr->lpm = startdev->path_data.ppm;
cqr->retries = 256;
- cqr->buildclk = get_clock();
+ cqr->buildclk = get_tod_clock();
cqr->status = DASD_CQR_FILLED;
return cqr;
}
@@ -2998,7 +2998,7 @@ static struct dasd_ccw_req *dasd_eckd_build_cp_tpm_track(
cqr->expires = startdev->default_expires * HZ; /* default 5 minutes */
cqr->lpm = startdev->path_data.ppm;
cqr->retries = 256;
- cqr->buildclk = get_clock();
+ cqr->buildclk = get_tod_clock();
cqr->status = DASD_CQR_FILLED;
return cqr;
out_error:
@@ -3201,7 +3201,7 @@ static struct dasd_ccw_req *dasd_raw_build_cp(struct dasd_device *startdev,
cqr->expires = startdev->default_expires * HZ;
cqr->lpm = startdev->path_data.ppm;
cqr->retries = 256;
- cqr->buildclk = get_clock();
+ cqr->buildclk = get_tod_clock();
cqr->status = DASD_CQR_FILLED;
if (IS_ERR(cqr) && PTR_ERR(cqr) != -EAGAIN)
@@ -3402,7 +3402,7 @@ dasd_eckd_release(struct dasd_device *device)
set_bit(DASD_CQR_FLAGS_FAILFAST, &cqr->flags);
cqr->retries = 2; /* set retry counter to enable basic ERP */
cqr->expires = 2 * HZ;
- cqr->buildclk = get_clock();
+ cqr->buildclk = get_tod_clock();
cqr->status = DASD_CQR_FILLED;
rc = dasd_sleep_on_immediatly(cqr);
@@ -3457,7 +3457,7 @@ dasd_eckd_reserve(struct dasd_device *device)
set_bit(DASD_CQR_FLAGS_FAILFAST, &cqr->flags);
cqr->retries = 2; /* set retry counter to enable basic ERP */
cqr->expires = 2 * HZ;
- cqr->buildclk = get_clock();
+ cqr->buildclk = get_tod_clock();
cqr->status = DASD_CQR_FILLED;
rc = dasd_sleep_on_immediatly(cqr);
@@ -3511,7 +3511,7 @@ dasd_eckd_steal_lock(struct dasd_device *device)
set_bit(DASD_CQR_FLAGS_FAILFAST, &cqr->flags);
cqr->retries = 2; /* set retry counter to enable basic ERP */
cqr->expires = 2 * HZ;
- cqr->buildclk = get_clock();
+ cqr->buildclk = get_tod_clock();
cqr->status = DASD_CQR_FILLED;
rc = dasd_sleep_on_immediatly(cqr);
@@ -3572,7 +3572,7 @@ static int dasd_eckd_snid(struct dasd_device *device,
set_bit(DASD_CQR_ALLOW_SLOCK, &cqr->flags);
cqr->retries = 5;
cqr->expires = 10 * HZ;
- cqr->buildclk = get_clock();
+ cqr->buildclk = get_tod_clock();
cqr->status = DASD_CQR_FILLED;
cqr->lpm = usrparm.path_mask;
@@ -3642,7 +3642,7 @@ dasd_eckd_performance(struct dasd_device *device, void __user *argp)
ccw->count = sizeof(struct dasd_rssd_perf_stats_t);
ccw->cda = (__u32)(addr_t) stats;
- cqr->buildclk = get_clock();
+ cqr->buildclk = get_tod_clock();
cqr->status = DASD_CQR_FILLED;
rc = dasd_sleep_on(cqr);
if (rc == 0) {
@@ -3768,7 +3768,7 @@ static int dasd_symm_io(struct dasd_device *device, void __user *argp)
cqr->memdev = device;
cqr->retries = 3;
cqr->expires = 10 * HZ;
- cqr->buildclk = get_clock();
+ cqr->buildclk = get_tod_clock();
cqr->status = DASD_CQR_FILLED;
/* Build the ccws */
diff --git a/drivers/s390/block/dasd_eer.c b/drivers/s390/block/dasd_eer.c
index ff901b5509c..21ef63cf096 100644
--- a/drivers/s390/block/dasd_eer.c
+++ b/drivers/s390/block/dasd_eer.c
@@ -481,7 +481,7 @@ int dasd_eer_enable(struct dasd_device *device)
ccw->flags = 0;
ccw->cda = (__u32)(addr_t) cqr->data;
- cqr->buildclk = get_clock();
+ cqr->buildclk = get_tod_clock();
cqr->status = DASD_CQR_FILLED;
cqr->callback = dasd_eer_snss_cb;
diff --git a/drivers/s390/block/dasd_erp.c b/drivers/s390/block/dasd_erp.c
index d01ef82f875..3250cb471f7 100644
--- a/drivers/s390/block/dasd_erp.c
+++ b/drivers/s390/block/dasd_erp.c
@@ -102,7 +102,7 @@ dasd_default_erp_action(struct dasd_ccw_req *cqr)
pr_err("%s: default ERP has run out of retries and failed\n",
dev_name(&device->cdev->dev));
cqr->status = DASD_CQR_FAILED;
- cqr->stopclk = get_clock();
+ cqr->stopclk = get_tod_clock();
}
return cqr;
} /* end dasd_default_erp_action */
@@ -146,7 +146,7 @@ struct dasd_ccw_req *dasd_default_erp_postaction(struct dasd_ccw_req *cqr)
cqr->status = DASD_CQR_DONE;
else {
cqr->status = DASD_CQR_FAILED;
- cqr->stopclk = get_clock();
+ cqr->stopclk = get_tod_clock();
}
return cqr;
diff --git a/drivers/s390/block/dasd_fba.c b/drivers/s390/block/dasd_fba.c
index 41469858434..4dd0e2f6047 100644
--- a/drivers/s390/block/dasd_fba.c
+++ b/drivers/s390/block/dasd_fba.c
@@ -370,7 +370,7 @@ static struct dasd_ccw_req *dasd_fba_build_cp(struct dasd_device * memdev,
cqr->block = block;
cqr->expires = memdev->default_expires * HZ; /* default 5 minutes */
cqr->retries = 32;
- cqr->buildclk = get_clock();
+ cqr->buildclk = get_tod_clock();
cqr->status = DASD_CQR_FILLED;
return cqr;
}
diff --git a/drivers/s390/block/scm_blk.h b/drivers/s390/block/scm_blk.h
index 7ac6bad919e..3c1ccf49464 100644
--- a/drivers/s390/block/scm_blk.h
+++ b/drivers/s390/block/scm_blk.h
@@ -68,19 +68,34 @@ void scm_initiate_cluster_request(struct scm_request *);
void scm_cluster_request_irq(struct scm_request *);
bool scm_test_cluster_request(struct scm_request *);
bool scm_cluster_size_valid(void);
-#else
-#define __scm_free_rq_cluster(scmrq) {}
-#define __scm_alloc_rq_cluster(scmrq) 0
-#define scm_request_cluster_init(scmrq) {}
-#define scm_reserve_cluster(scmrq) true
-#define scm_release_cluster(scmrq) {}
-#define scm_blk_dev_cluster_setup(bdev) {}
-#define scm_need_cluster_request(scmrq) false
-#define scm_initiate_cluster_request(scmrq) {}
-#define scm_cluster_request_irq(scmrq) {}
-#define scm_test_cluster_request(scmrq) false
-#define scm_cluster_size_valid() true
-#endif
+#else /* CONFIG_SCM_BLOCK_CLUSTER_WRITE */
+static inline void __scm_free_rq_cluster(struct scm_request *scmrq) {}
+static inline int __scm_alloc_rq_cluster(struct scm_request *scmrq)
+{
+ return 0;
+}
+static inline void scm_request_cluster_init(struct scm_request *scmrq) {}
+static inline bool scm_reserve_cluster(struct scm_request *scmrq)
+{
+ return true;
+}
+static inline void scm_release_cluster(struct scm_request *scmrq) {}
+static inline void scm_blk_dev_cluster_setup(struct scm_blk_dev *bdev) {}
+static inline bool scm_need_cluster_request(struct scm_request *scmrq)
+{
+ return false;
+}
+static inline void scm_initiate_cluster_request(struct scm_request *scmrq) {}
+static inline void scm_cluster_request_irq(struct scm_request *scmrq) {}
+static inline bool scm_test_cluster_request(struct scm_request *scmrq)
+{
+ return false;
+}
+static inline bool scm_cluster_size_valid(void)
+{
+ return true;
+}
+#endif /* CONFIG_SCM_BLOCK_CLUSTER_WRITE */
extern debug_info_t *scm_debug;
diff --git a/drivers/s390/char/fs3270.c b/drivers/s390/char/fs3270.c
index 911704571b9..230697aac94 100644
--- a/drivers/s390/char/fs3270.c
+++ b/drivers/s390/char/fs3270.c
@@ -443,7 +443,7 @@ fs3270_open(struct inode *inode, struct file *filp)
tty_kref_put(tty);
return -ENODEV;
}
- minor = tty->index + RAW3270_FIRSTMINOR;
+ minor = tty->index;
tty_kref_put(tty);
}
mutex_lock(&fs3270_mutex);
@@ -524,6 +524,25 @@ static const struct file_operations fs3270_fops = {
.llseek = no_llseek,
};
+void fs3270_create_cb(int minor)
+{
+ __register_chrdev(IBM_FS3270_MAJOR, minor, 1, "tub", &fs3270_fops);
+ device_create(class3270, NULL, MKDEV(IBM_FS3270_MAJOR, minor),
+ NULL, "3270/tub%d", minor);
+}
+
+void fs3270_destroy_cb(int minor)
+{
+ device_destroy(class3270, MKDEV(IBM_FS3270_MAJOR, minor));
+ __unregister_chrdev(IBM_FS3270_MAJOR, minor, 1, "tub");
+}
+
+struct raw3270_notifier fs3270_notifier =
+{
+ .create = fs3270_create_cb,
+ .destroy = fs3270_destroy_cb,
+};
+
/*
* 3270 fullscreen driver initialization.
*/
@@ -532,16 +551,20 @@ fs3270_init(void)
{
int rc;
- rc = register_chrdev(IBM_FS3270_MAJOR, "fs3270", &fs3270_fops);
+ rc = __register_chrdev(IBM_FS3270_MAJOR, 0, 1, "fs3270", &fs3270_fops);
if (rc)
return rc;
+ device_create(class3270, NULL, MKDEV(IBM_FS3270_MAJOR, 0),
+ NULL, "3270/tub");
+ raw3270_register_notifier(&fs3270_notifier);
return 0;
}
static void __exit
fs3270_exit(void)
{
- unregister_chrdev(IBM_FS3270_MAJOR, "fs3270");
+ raw3270_unregister_notifier(&fs3270_notifier);
+ __unregister_chrdev(IBM_FS3270_MAJOR, 0, 1, "fs3270");
}
MODULE_LICENSE("GPL");
diff --git a/drivers/s390/char/raw3270.c b/drivers/s390/char/raw3270.c
index 9a6c140c5f0..4c9030a5b9f 100644
--- a/drivers/s390/char/raw3270.c
+++ b/drivers/s390/char/raw3270.c
@@ -28,7 +28,7 @@
#include <linux/device.h>
#include <linux/mutex.h>
-static struct class *class3270;
+struct class *class3270;
/* The main 3270 data structure. */
struct raw3270 {
@@ -37,6 +37,7 @@ struct raw3270 {
int minor;
short model, rows, cols;
+ unsigned int state;
unsigned long flags;
struct list_head req_queue; /* Request queue. */
@@ -46,20 +47,26 @@ struct raw3270 {
struct timer_list timer; /* Device timer. */
unsigned char *ascebc; /* ascii -> ebcdic table */
- struct device *clttydev; /* 3270-class tty device ptr */
- struct device *cltubdev; /* 3270-class tub device ptr */
- struct raw3270_request init_request;
+ struct raw3270_view init_view;
+ struct raw3270_request init_reset;
+ struct raw3270_request init_readpart;
+ struct raw3270_request init_readmod;
unsigned char init_data[256];
};
+/* raw3270->state */
+#define RAW3270_STATE_INIT 0 /* Initial state */
+#define RAW3270_STATE_RESET 1 /* Reset command is pending */
+#define RAW3270_STATE_W4ATTN 2 /* Wait for attention interrupt */
+#define RAW3270_STATE_READMOD 3 /* Read partition is pending */
+#define RAW3270_STATE_READY 4 /* Device is usable by views */
+
/* raw3270->flags */
#define RAW3270_FLAGS_14BITADDR 0 /* 14-bit buffer addresses */
#define RAW3270_FLAGS_BUSY 1 /* Device busy, leave it alone */
-#define RAW3270_FLAGS_ATTN 2 /* Device sent an ATTN interrupt */
-#define RAW3270_FLAGS_READY 4 /* Device is useable by views */
-#define RAW3270_FLAGS_CONSOLE 8 /* Device is the console. */
-#define RAW3270_FLAGS_FROZEN 16 /* set if 3270 is frozen for suspend */
+#define RAW3270_FLAGS_CONSOLE 2 /* Device is the console. */
+#define RAW3270_FLAGS_FROZEN 3 /* set if 3270 is frozen for suspend */
/* Semaphore to protect global data of raw3270 (devices, views, etc). */
static DEFINE_MUTEX(raw3270_mutex);
@@ -97,6 +104,17 @@ static unsigned char raw3270_ebcgraf[64] = {
0xf8, 0xf9, 0x7a, 0x7b, 0x7c, 0x7d, 0x7e, 0x7f
};
+static inline int raw3270_state_ready(struct raw3270 *rp)
+{
+ return rp->state == RAW3270_STATE_READY;
+}
+
+static inline int raw3270_state_final(struct raw3270 *rp)
+{
+ return rp->state == RAW3270_STATE_INIT ||
+ rp->state == RAW3270_STATE_READY;
+}
+
void
raw3270_buffer_address(struct raw3270 *rp, char *cp, unsigned short addr)
{
@@ -214,7 +232,7 @@ raw3270_request_set_idal(struct raw3270_request *rq, struct idal_buffer *ib)
* Stop running ccw.
*/
static int
-raw3270_halt_io_nolock(struct raw3270 *rp, struct raw3270_request *rq)
+__raw3270_halt_io(struct raw3270 *rp, struct raw3270_request *rq)
{
int retries;
int rc;
@@ -233,18 +251,6 @@ raw3270_halt_io_nolock(struct raw3270 *rp, struct raw3270_request *rq)
return rc;
}
-static int
-raw3270_halt_io(struct raw3270 *rp, struct raw3270_request *rq)
-{
- unsigned long flags;
- int rc;
-
- spin_lock_irqsave(get_ccwdev_lock(rp->cdev), flags);
- rc = raw3270_halt_io_nolock(rp, rq);
- spin_unlock_irqrestore(get_ccwdev_lock(rp->cdev), flags);
- return rc;
-}
-
/*
* Add the request to the request queue, try to start it if the
* 3270 device is idle. Return without waiting for end of i/o.
@@ -281,8 +287,8 @@ raw3270_start(struct raw3270_view *view, struct raw3270_request *rq)
if (!rp || rp->view != view ||
test_bit(RAW3270_FLAGS_FROZEN, &rp->flags))
rc = -EACCES;
- else if (!test_bit(RAW3270_FLAGS_READY, &rp->flags))
- rc = -ENODEV;
+ else if (!raw3270_state_ready(rp))
+ rc = -EBUSY;
else
rc = __raw3270_start(rp, view, rq);
spin_unlock_irqrestore(get_ccwdev_lock(view->dev->cdev), flags);
@@ -299,8 +305,8 @@ raw3270_start_locked(struct raw3270_view *view, struct raw3270_request *rq)
if (!rp || rp->view != view ||
test_bit(RAW3270_FLAGS_FROZEN, &rp->flags))
rc = -EACCES;
- else if (!test_bit(RAW3270_FLAGS_READY, &rp->flags))
- rc = -ENODEV;
+ else if (!raw3270_state_ready(rp))
+ rc = -EBUSY;
else
rc = __raw3270_start(rp, view, rq);
return rc;
@@ -378,7 +384,7 @@ raw3270_irq (struct ccw_device *cdev, unsigned long intparm, struct irb *irb)
case RAW3270_IO_STOP:
if (!rq)
break;
- raw3270_halt_io_nolock(rp, rq);
+ __raw3270_halt_io(rp, rq);
rq->rc = -EIO;
break;
default:
@@ -413,9 +419,14 @@ raw3270_irq (struct ccw_device *cdev, unsigned long intparm, struct irb *irb)
}
/*
- * Size sensing.
+ * To determine the size of the 3270 device we need to do:
+ * 1) send a 'read partition' data stream to the device
+ * 2) wait for the attn interrupt that precedes the query reply
+ * 3) do a read modified to get the query reply
+ * To make things worse we have to cope with intervention
+ * required (3270 device switched to 'stand-by') and command
+ * rejects (old devices that can't do 'read partition').
*/
-
struct raw3270_ua { /* Query Reply structure for Usable Area */
struct { /* Usable Area Query Reply Base */
short l; /* Length of this structured field */
@@ -451,117 +462,21 @@ struct raw3270_ua { /* Query Reply structure for Usable Area */
} __attribute__ ((packed)) aua;
} __attribute__ ((packed));
-static struct diag210 raw3270_init_diag210;
-static DEFINE_MUTEX(raw3270_init_mutex);
-
-static int
-raw3270_init_irq(struct raw3270_view *view, struct raw3270_request *rq,
- struct irb *irb)
-{
- /*
- * Unit-Check Processing:
- * Expect Command Reject or Intervention Required.
- */
- if (irb->scsw.cmd.dstat & DEV_STAT_UNIT_CHECK) {
- /* Request finished abnormally. */
- if (irb->ecw[0] & SNS0_INTERVENTION_REQ) {
- set_bit(RAW3270_FLAGS_BUSY, &view->dev->flags);
- return RAW3270_IO_BUSY;
- }
- }
- if (rq) {
- if (irb->scsw.cmd.dstat & DEV_STAT_UNIT_CHECK) {
- if (irb->ecw[0] & SNS0_CMD_REJECT)
- rq->rc = -EOPNOTSUPP;
- else
- rq->rc = -EIO;
- } else
- /* Request finished normally. Copy residual count. */
- rq->rescnt = irb->scsw.cmd.count;
- }
- if (irb->scsw.cmd.dstat & DEV_STAT_ATTENTION) {
- set_bit(RAW3270_FLAGS_ATTN, &view->dev->flags);
- wake_up(&raw3270_wait_queue);
- }
- return RAW3270_IO_DONE;
-}
-
-static struct raw3270_fn raw3270_init_fn = {
- .intv = raw3270_init_irq
-};
-
-static struct raw3270_view raw3270_init_view = {
- .fn = &raw3270_init_fn
-};
-
-/*
- * raw3270_wait/raw3270_wait_interruptible/__raw3270_wakeup
- * Wait for end of request. The request must have been started
- * with raw3270_start, rc = 0. The device lock may NOT have been
- * released between calling raw3270_start and raw3270_wait.
- */
static void
-raw3270_wake_init(struct raw3270_request *rq, void *data)
-{
- wake_up((wait_queue_head_t *) data);
-}
-
-/*
- * Special wait function that can cope with console initialization.
- */
-static int
-raw3270_start_init(struct raw3270 *rp, struct raw3270_view *view,
- struct raw3270_request *rq)
-{
- unsigned long flags;
- int rc;
-
-#ifdef CONFIG_TN3270_CONSOLE
- if (raw3270_registered == 0) {
- spin_lock_irqsave(get_ccwdev_lock(view->dev->cdev), flags);
- rq->callback = NULL;
- rc = __raw3270_start(rp, view, rq);
- if (rc == 0)
- while (!raw3270_request_final(rq)) {
- wait_cons_dev();
- barrier();
- }
- spin_unlock_irqrestore(get_ccwdev_lock(view->dev->cdev), flags);
- return rq->rc;
- }
-#endif
- rq->callback = raw3270_wake_init;
- rq->callback_data = &raw3270_wait_queue;
- spin_lock_irqsave(get_ccwdev_lock(view->dev->cdev), flags);
- rc = __raw3270_start(rp, view, rq);
- spin_unlock_irqrestore(get_ccwdev_lock(view->dev->cdev), flags);
- if (rc)
- return rc;
- /* Now wait for the completion. */
- rc = wait_event_interruptible(raw3270_wait_queue,
- raw3270_request_final(rq));
- if (rc == -ERESTARTSYS) { /* Interrupted by a signal. */
- raw3270_halt_io(view->dev, rq);
- /* No wait for the halt to complete. */
- wait_event(raw3270_wait_queue, raw3270_request_final(rq));
- return -ERESTARTSYS;
- }
- return rq->rc;
-}
-
-static int
-__raw3270_size_device_vm(struct raw3270 *rp)
+raw3270_size_device_vm(struct raw3270 *rp)
{
int rc, model;
struct ccw_dev_id dev_id;
+ struct diag210 diag_data;
ccw_device_get_id(rp->cdev, &dev_id);
- raw3270_init_diag210.vrdcdvno = dev_id.devno;
- raw3270_init_diag210.vrdclen = sizeof(struct diag210);
- rc = diag210(&raw3270_init_diag210);
- if (rc)
- return rc;
- model = raw3270_init_diag210.vrdccrmd;
+ diag_data.vrdcdvno = dev_id.devno;
+ diag_data.vrdclen = sizeof(struct diag210);
+ rc = diag210(&diag_data);
+ model = diag_data.vrdccrmd;
+ /* Use default model 2 if the size could not be detected */
+ if (rc || model < 2 || model > 5)
+ model = 2;
switch (model) {
case 2:
rp->model = model;
@@ -583,77 +498,25 @@ __raw3270_size_device_vm(struct raw3270 *rp)
rp->rows = 27;
rp->cols = 132;
break;
- default:
- rc = -EOPNOTSUPP;
- break;
}
- return rc;
}
-static int
-__raw3270_size_device(struct raw3270 *rp)
+static void
+raw3270_size_device(struct raw3270 *rp)
{
- static const unsigned char wbuf[] =
- { 0x00, 0x07, 0x01, 0xff, 0x03, 0x00, 0x81 };
struct raw3270_ua *uap;
- int rc;
- /*
- * To determine the size of the 3270 device we need to do:
- * 1) send a 'read partition' data stream to the device
- * 2) wait for the attn interrupt that precedes the query reply
- * 3) do a read modified to get the query reply
- * To make things worse we have to cope with intervention
- * required (3270 device switched to 'stand-by') and command
- * rejects (old devices that can't do 'read partition').
- */
- memset(&rp->init_request, 0, sizeof(rp->init_request));
- memset(&rp->init_data, 0, 256);
- /* Store 'read partition' data stream to init_data */
- memcpy(&rp->init_data, wbuf, sizeof(wbuf));
- INIT_LIST_HEAD(&rp->init_request.list);
- rp->init_request.ccw.cmd_code = TC_WRITESF;
- rp->init_request.ccw.flags = CCW_FLAG_SLI;
- rp->init_request.ccw.count = sizeof(wbuf);
- rp->init_request.ccw.cda = (__u32) __pa(&rp->init_data);
-
- rc = raw3270_start_init(rp, &raw3270_init_view, &rp->init_request);
- if (rc)
- /* Check error cases: -ERESTARTSYS, -EIO and -EOPNOTSUPP */
- return rc;
-
- /* Wait for attention interrupt. */
-#ifdef CONFIG_TN3270_CONSOLE
- if (raw3270_registered == 0) {
- unsigned long flags;
-
- spin_lock_irqsave(get_ccwdev_lock(rp->cdev), flags);
- while (!test_and_clear_bit(RAW3270_FLAGS_ATTN, &rp->flags))
- wait_cons_dev();
- spin_unlock_irqrestore(get_ccwdev_lock(rp->cdev), flags);
- } else
-#endif
- rc = wait_event_interruptible(raw3270_wait_queue,
- test_and_clear_bit(RAW3270_FLAGS_ATTN, &rp->flags));
- if (rc)
- return rc;
-
- /*
- * The device accepted the 'read partition' command. Now
- * set up a read ccw and issue it.
- */
- rp->init_request.ccw.cmd_code = TC_READMOD;
- rp->init_request.ccw.flags = CCW_FLAG_SLI;
- rp->init_request.ccw.count = sizeof(rp->init_data);
- rp->init_request.ccw.cda = (__u32) __pa(rp->init_data);
- rc = raw3270_start_init(rp, &raw3270_init_view, &rp->init_request);
- if (rc)
- return rc;
/* Got a Query Reply */
uap = (struct raw3270_ua *) (rp->init_data + 1);
/* Paranoia check. */
- if (rp->init_data[0] != 0x88 || uap->uab.qcode != 0x81)
- return -EOPNOTSUPP;
+ if (rp->init_readmod.rc || rp->init_data[0] != 0x88 ||
+ uap->uab.qcode != 0x81) {
+ /* Couldn't detect size. Use default model 2. */
+ rp->model = 2;
+ rp->rows = 24;
+ rp->cols = 80;
+ return;
+ }
/* Copy rows/columns of default Usable Area */
rp->rows = uap->uab.h;
rp->cols = uap->uab.w;
@@ -666,66 +529,131 @@ __raw3270_size_device(struct raw3270 *rp)
rp->rows = uap->aua.hauai;
rp->cols = uap->aua.wauai;
}
- return 0;
+ /* Try to find a model. */
+ rp->model = 0;
+ if (rp->rows == 24 && rp->cols == 80)
+ rp->model = 2;
+ if (rp->rows == 32 && rp->cols == 80)
+ rp->model = 3;
+ if (rp->rows == 43 && rp->cols == 80)
+ rp->model = 4;
+ if (rp->rows == 27 && rp->cols == 132)
+ rp->model = 5;
}
-static int
-raw3270_size_device(struct raw3270 *rp)
+static void
+raw3270_size_device_done(struct raw3270 *rp)
{
- int rc;
+ struct raw3270_view *view;
- mutex_lock(&raw3270_init_mutex);
- rp->view = &raw3270_init_view;
- raw3270_init_view.dev = rp;
- if (MACHINE_IS_VM)
- rc = __raw3270_size_device_vm(rp);
- else
- rc = __raw3270_size_device(rp);
- raw3270_init_view.dev = NULL;
rp->view = NULL;
- mutex_unlock(&raw3270_init_mutex);
- if (rc == 0) { /* Found something. */
- /* Try to find a model. */
- rp->model = 0;
- if (rp->rows == 24 && rp->cols == 80)
- rp->model = 2;
- if (rp->rows == 32 && rp->cols == 80)
- rp->model = 3;
- if (rp->rows == 43 && rp->cols == 80)
- rp->model = 4;
- if (rp->rows == 27 && rp->cols == 132)
- rp->model = 5;
- } else {
- /* Couldn't detect size. Use default model 2. */
- rp->model = 2;
- rp->rows = 24;
- rp->cols = 80;
- return 0;
+ rp->state = RAW3270_STATE_READY;
+ /* Notify views about new size */
+ list_for_each_entry(view, &rp->view_list, list)
+ if (view->fn->resize)
+ view->fn->resize(view, rp->model, rp->rows, rp->cols);
+ /* Setup processing done, now activate a view */
+ list_for_each_entry(view, &rp->view_list, list) {
+ rp->view = view;
+ if (view->fn->activate(view) == 0)
+ break;
+ rp->view = NULL;
}
- return rc;
+}
+
+static void
+raw3270_read_modified_cb(struct raw3270_request *rq, void *data)
+{
+ struct raw3270 *rp = rq->view->dev;
+
+ raw3270_size_device(rp);
+ raw3270_size_device_done(rp);
+}
+
+static void
+raw3270_read_modified(struct raw3270 *rp)
+{
+ if (rp->state != RAW3270_STATE_W4ATTN)
+ return;
+ /* Use 'read modified' to get the result of a read partition. */
+ memset(&rp->init_readmod, 0, sizeof(rp->init_readmod));
+ memset(&rp->init_data, 0, sizeof(rp->init_data));
+ rp->init_readmod.ccw.cmd_code = TC_READMOD;
+ rp->init_readmod.ccw.flags = CCW_FLAG_SLI;
+ rp->init_readmod.ccw.count = sizeof(rp->init_data);
+ rp->init_readmod.ccw.cda = (__u32) __pa(rp->init_data);
+ rp->init_readmod.callback = raw3270_read_modified_cb;
+ rp->state = RAW3270_STATE_READMOD;
+ raw3270_start_irq(&rp->init_view, &rp->init_readmod);
+}
+
+static void
+raw3270_writesf_readpart(struct raw3270 *rp)
+{
+ static const unsigned char wbuf[] =
+ { 0x00, 0x07, 0x01, 0xff, 0x03, 0x00, 0x81 };
+
+ /* Store 'read partition' data stream to init_data */
+ memset(&rp->init_readpart, 0, sizeof(rp->init_readpart));
+ memset(&rp->init_data, 0, sizeof(rp->init_data));
+ memcpy(&rp->init_data, wbuf, sizeof(wbuf));
+ rp->init_readpart.ccw.cmd_code = TC_WRITESF;
+ rp->init_readpart.ccw.flags = CCW_FLAG_SLI;
+ rp->init_readpart.ccw.count = sizeof(wbuf);
+ rp->init_readpart.ccw.cda = (__u32) __pa(&rp->init_data);
+ rp->state = RAW3270_STATE_W4ATTN;
+ raw3270_start_irq(&rp->init_view, &rp->init_readpart);
+}
+
+/*
+ * Device reset
+ */
+static void
+raw3270_reset_device_cb(struct raw3270_request *rq, void *data)
+{
+ struct raw3270 *rp = rq->view->dev;
+
+ if (rp->state != RAW3270_STATE_RESET)
+ return;
+ if (rq && rq->rc) {
+ /* Reset command failed. */
+ rp->state = RAW3270_STATE_INIT;
+ } else if (0 && MACHINE_IS_VM) {
+ raw3270_size_device_vm(rp);
+ raw3270_size_device_done(rp);
+ } else
+ raw3270_writesf_readpart(rp);
}
static int
-raw3270_reset_device(struct raw3270 *rp)
+__raw3270_reset_device(struct raw3270 *rp)
{
int rc;
- mutex_lock(&raw3270_init_mutex);
- memset(&rp->init_request, 0, sizeof(rp->init_request));
+ /* Store reset data stream to init_data/init_reset */
+ memset(&rp->init_reset, 0, sizeof(rp->init_reset));
memset(&rp->init_data, 0, sizeof(rp->init_data));
- /* Store reset data stream to init_data/init_request */
rp->init_data[0] = TW_KR;
- INIT_LIST_HEAD(&rp->init_request.list);
- rp->init_request.ccw.cmd_code = TC_EWRITEA;
- rp->init_request.ccw.flags = CCW_FLAG_SLI;
- rp->init_request.ccw.count = 1;
- rp->init_request.ccw.cda = (__u32) __pa(rp->init_data);
- rp->view = &raw3270_init_view;
- raw3270_init_view.dev = rp;
- rc = raw3270_start_init(rp, &raw3270_init_view, &rp->init_request);
- raw3270_init_view.dev = NULL;
- rp->view = NULL;
- mutex_unlock(&raw3270_init_mutex);
+ rp->init_reset.ccw.cmd_code = TC_EWRITEA;
+ rp->init_reset.ccw.flags = CCW_FLAG_SLI;
+ rp->init_reset.ccw.count = 1;
+ rp->init_reset.ccw.cda = (__u32) __pa(rp->init_data);
+ rp->init_reset.callback = raw3270_reset_device_cb;
+ rc = __raw3270_start(rp, &rp->init_view, &rp->init_reset);
+ if (rc == 0 && rp->state == RAW3270_STATE_INIT)
+ rp->state = RAW3270_STATE_RESET;
+ return rc;
+}
+
+static int
+raw3270_reset_device(struct raw3270 *rp)
+{
+ unsigned long flags;
+ int rc;
+
+ spin_lock_irqsave(get_ccwdev_lock(rp->cdev), flags);
+ rc = __raw3270_reset_device(rp);
+ spin_unlock_irqrestore(get_ccwdev_lock(rp->cdev), flags);
return rc;
}
@@ -739,13 +667,50 @@ raw3270_reset(struct raw3270_view *view)
if (!rp || rp->view != view ||
test_bit(RAW3270_FLAGS_FROZEN, &rp->flags))
rc = -EACCES;
- else if (!test_bit(RAW3270_FLAGS_READY, &rp->flags))
- rc = -ENODEV;
+ else if (!raw3270_state_ready(rp))
+ rc = -EBUSY;
else
rc = raw3270_reset_device(view->dev);
return rc;
}
+static int
+raw3270_init_irq(struct raw3270_view *view, struct raw3270_request *rq,
+ struct irb *irb)
+{
+ struct raw3270 *rp;
+
+ /*
+ * Unit-Check Processing:
+ * Expect Command Reject or Intervention Required.
+ */
+ if (irb->scsw.cmd.dstat & DEV_STAT_UNIT_CHECK) {
+ /* Request finished abnormally. */
+ if (irb->ecw[0] & SNS0_INTERVENTION_REQ) {
+ set_bit(RAW3270_FLAGS_BUSY, &view->dev->flags);
+ return RAW3270_IO_BUSY;
+ }
+ }
+ if (rq) {
+ if (irb->scsw.cmd.dstat & DEV_STAT_UNIT_CHECK) {
+ if (irb->ecw[0] & SNS0_CMD_REJECT)
+ rq->rc = -EOPNOTSUPP;
+ else
+ rq->rc = -EIO;
+ }
+ }
+ if (irb->scsw.cmd.dstat & DEV_STAT_ATTENTION) {
+ /* Queue read modified after attention interrupt */
+ rp = view->dev;
+ raw3270_read_modified(rp);
+ }
+ return RAW3270_IO_DONE;
+}
+
+static struct raw3270_fn raw3270_init_fn = {
+ .intv = raw3270_init_irq
+};
+
/*
* Setup new 3270 device.
*/
@@ -774,6 +739,10 @@ raw3270_setup_device(struct ccw_device *cdev, struct raw3270 *rp, char *ascebc)
INIT_LIST_HEAD(&rp->req_queue);
INIT_LIST_HEAD(&rp->view_list);
+ rp->init_view.dev = rp;
+ rp->init_view.fn = &raw3270_init_fn;
+ rp->view = &rp->init_view;
+
/*
* Add device to list and find the smallest unused minor
* number for it. Note: there is no device with minor 0,
@@ -812,6 +781,7 @@ raw3270_setup_device(struct ccw_device *cdev, struct raw3270 *rp, char *ascebc)
*/
struct raw3270 __init *raw3270_setup_console(struct ccw_device *cdev)
{
+ unsigned long flags;
struct raw3270 *rp;
char *ascebc;
int rc;
@@ -822,16 +792,15 @@ struct raw3270 __init *raw3270_setup_console(struct ccw_device *cdev)
if (rc)
return ERR_PTR(rc);
set_bit(RAW3270_FLAGS_CONSOLE, &rp->flags);
- rc = raw3270_reset_device(rp);
- if (rc)
- return ERR_PTR(rc);
- rc = raw3270_size_device(rp);
- if (rc)
- return ERR_PTR(rc);
- rc = raw3270_reset_device(rp);
- if (rc)
- return ERR_PTR(rc);
- set_bit(RAW3270_FLAGS_READY, &rp->flags);
+ spin_lock_irqsave(get_ccwdev_lock(rp->cdev), flags);
+ do {
+ __raw3270_reset_device(rp);
+ while (!raw3270_state_final(rp)) {
+ wait_cons_dev();
+ barrier();
+ }
+ } while (rp->state != RAW3270_STATE_READY);
+ spin_unlock_irqrestore(get_ccwdev_lock(rp->cdev), flags);
return rp;
}
@@ -893,13 +862,13 @@ raw3270_activate_view(struct raw3270_view *view)
spin_lock_irqsave(get_ccwdev_lock(rp->cdev), flags);
if (rp->view == view)
rc = 0;
- else if (!test_bit(RAW3270_FLAGS_READY, &rp->flags))
- rc = -ENODEV;
+ else if (!raw3270_state_ready(rp))
+ rc = -EBUSY;
else if (test_bit(RAW3270_FLAGS_FROZEN, &rp->flags))
rc = -EACCES;
else {
oldview = NULL;
- if (rp->view) {
+ if (rp->view && rp->view->fn->deactivate) {
oldview = rp->view;
oldview->fn->deactivate(oldview);
}
@@ -944,7 +913,7 @@ raw3270_deactivate_view(struct raw3270_view *view)
list_del_init(&view->list);
list_add_tail(&view->list, &rp->view_list);
/* Try to activate another view. */
- if (test_bit(RAW3270_FLAGS_READY, &rp->flags) &&
+ if (raw3270_state_ready(rp) &&
!test_bit(RAW3270_FLAGS_FROZEN, &rp->flags)) {
list_for_each_entry(view, &rp->view_list, list) {
rp->view = view;
@@ -975,18 +944,16 @@ raw3270_add_view(struct raw3270_view *view, struct raw3270_fn *fn, int minor)
if (rp->minor != minor)
continue;
spin_lock_irqsave(get_ccwdev_lock(rp->cdev), flags);
- if (test_bit(RAW3270_FLAGS_READY, &rp->flags)) {
- atomic_set(&view->ref_count, 2);
- view->dev = rp;
- view->fn = fn;
- view->model = rp->model;
- view->rows = rp->rows;
- view->cols = rp->cols;
- view->ascebc = rp->ascebc;
- spin_lock_init(&view->lock);
- list_add(&view->list, &rp->view_list);
- rc = 0;
- }
+ atomic_set(&view->ref_count, 2);
+ view->dev = rp;
+ view->fn = fn;
+ view->model = rp->model;
+ view->rows = rp->rows;
+ view->cols = rp->cols;
+ view->ascebc = rp->ascebc;
+ spin_lock_init(&view->lock);
+ list_add(&view->list, &rp->view_list);
+ rc = 0;
spin_unlock_irqrestore(get_ccwdev_lock(rp->cdev), flags);
break;
}
@@ -1010,14 +977,11 @@ raw3270_find_view(struct raw3270_fn *fn, int minor)
if (rp->minor != minor)
continue;
spin_lock_irqsave(get_ccwdev_lock(rp->cdev), flags);
- if (test_bit(RAW3270_FLAGS_READY, &rp->flags)) {
- view = ERR_PTR(-ENOENT);
- list_for_each_entry(tmp, &rp->view_list, list) {
- if (tmp->fn == fn) {
- raw3270_get_view(tmp);
- view = tmp;
- break;
- }
+ list_for_each_entry(tmp, &rp->view_list, list) {
+ if (tmp->fn == fn) {
+ raw3270_get_view(tmp);
+ view = tmp;
+ break;
}
}
spin_unlock_irqrestore(get_ccwdev_lock(rp->cdev), flags);
@@ -1044,7 +1008,7 @@ raw3270_del_view(struct raw3270_view *view)
rp->view = NULL;
}
list_del_init(&view->list);
- if (!rp->view && test_bit(RAW3270_FLAGS_READY, &rp->flags) &&
+ if (!rp->view && raw3270_state_ready(rp) &&
!test_bit(RAW3270_FLAGS_FROZEN, &rp->flags)) {
/* Try to activate another view. */
list_for_each_entry(nv, &rp->view_list, list) {
@@ -1072,10 +1036,6 @@ raw3270_delete_device(struct raw3270 *rp)
/* Remove from device chain. */
mutex_lock(&raw3270_mutex);
- if (rp->clttydev && !IS_ERR(rp->clttydev))
- device_destroy(class3270, MKDEV(IBM_TTY3270_MAJOR, rp->minor));
- if (rp->cltubdev && !IS_ERR(rp->cltubdev))
- device_destroy(class3270, MKDEV(IBM_FS3270_MAJOR, rp->minor));
list_del_init(&rp->list);
mutex_unlock(&raw3270_mutex);
@@ -1139,75 +1099,34 @@ static struct attribute_group raw3270_attr_group = {
static int raw3270_create_attributes(struct raw3270 *rp)
{
- int rc;
-
- rc = sysfs_create_group(&rp->cdev->dev.kobj, &raw3270_attr_group);
- if (rc)
- goto out;
-
- rp->clttydev = device_create(class3270, &rp->cdev->dev,
- MKDEV(IBM_TTY3270_MAJOR, rp->minor), NULL,
- "tty%s", dev_name(&rp->cdev->dev));
- if (IS_ERR(rp->clttydev)) {
- rc = PTR_ERR(rp->clttydev);
- goto out_ttydev;
- }
-
- rp->cltubdev = device_create(class3270, &rp->cdev->dev,
- MKDEV(IBM_FS3270_MAJOR, rp->minor), NULL,
- "tub%s", dev_name(&rp->cdev->dev));
- if (!IS_ERR(rp->cltubdev))
- goto out;
-
- rc = PTR_ERR(rp->cltubdev);
- device_destroy(class3270, MKDEV(IBM_TTY3270_MAJOR, rp->minor));
-
-out_ttydev:
- sysfs_remove_group(&rp->cdev->dev.kobj, &raw3270_attr_group);
-out:
- return rc;
+ return sysfs_create_group(&rp->cdev->dev.kobj, &raw3270_attr_group);
}
/*
* Notifier for device addition/removal
*/
-struct raw3270_notifier {
- struct list_head list;
- void (*notifier)(int, int);
-};
-
static LIST_HEAD(raw3270_notifier);
-int raw3270_register_notifier(void (*notifier)(int, int))
+int raw3270_register_notifier(struct raw3270_notifier *notifier)
{
- struct raw3270_notifier *np;
struct raw3270 *rp;
- np = kmalloc(sizeof(struct raw3270_notifier), GFP_KERNEL);
- if (!np)
- return -ENOMEM;
- np->notifier = notifier;
mutex_lock(&raw3270_mutex);
- list_add_tail(&np->list, &raw3270_notifier);
- list_for_each_entry(rp, &raw3270_devices, list) {
- get_device(&rp->cdev->dev);
- notifier(rp->minor, 1);
- }
+ list_add_tail(&notifier->list, &raw3270_notifier);
+ list_for_each_entry(rp, &raw3270_devices, list)
+ notifier->create(rp->minor);
mutex_unlock(&raw3270_mutex);
return 0;
}
-void raw3270_unregister_notifier(void (*notifier)(int, int))
+void raw3270_unregister_notifier(struct raw3270_notifier *notifier)
{
- struct raw3270_notifier *np;
+ struct raw3270 *rp;
mutex_lock(&raw3270_mutex);
- list_for_each_entry(np, &raw3270_notifier, list)
- if (np->notifier == notifier) {
- list_del(&np->list);
- kfree(np);
- break;
- }
+ list_for_each_entry(rp, &raw3270_devices, list)
+ notifier->destroy(rp->minor);
+ list_del(&notifier->list);
mutex_unlock(&raw3270_mutex);
}
@@ -1217,29 +1136,20 @@ void raw3270_unregister_notifier(void (*notifier)(int, int))
static int
raw3270_set_online (struct ccw_device *cdev)
{
- struct raw3270 *rp;
struct raw3270_notifier *np;
+ struct raw3270 *rp;
int rc;
rp = raw3270_create_device(cdev);
if (IS_ERR(rp))
return PTR_ERR(rp);
- rc = raw3270_reset_device(rp);
- if (rc)
- goto failure;
- rc = raw3270_size_device(rp);
- if (rc)
- goto failure;
- rc = raw3270_reset_device(rp);
- if (rc)
- goto failure;
rc = raw3270_create_attributes(rp);
if (rc)
goto failure;
- set_bit(RAW3270_FLAGS_READY, &rp->flags);
+ raw3270_reset_device(rp);
mutex_lock(&raw3270_mutex);
list_for_each_entry(np, &raw3270_notifier, list)
- np->notifier(rp->minor, 1);
+ np->create(rp->minor);
mutex_unlock(&raw3270_mutex);
return 0;
@@ -1268,14 +1178,14 @@ raw3270_remove (struct ccw_device *cdev)
*/
if (rp == NULL)
return;
- clear_bit(RAW3270_FLAGS_READY, &rp->flags);
sysfs_remove_group(&cdev->dev.kobj, &raw3270_attr_group);
/* Deactivate current view and remove all views. */
spin_lock_irqsave(get_ccwdev_lock(cdev), flags);
if (rp->view) {
- rp->view->fn->deactivate(rp->view);
+ if (rp->view->fn->deactivate)
+ rp->view->fn->deactivate(rp->view);
rp->view = NULL;
}
while (!list_empty(&rp->view_list)) {
@@ -1290,7 +1200,7 @@ raw3270_remove (struct ccw_device *cdev)
mutex_lock(&raw3270_mutex);
list_for_each_entry(np, &raw3270_notifier, list)
- np->notifier(rp->minor, 0);
+ np->destroy(rp->minor);
mutex_unlock(&raw3270_mutex);
/* Reset 3270 device. */
@@ -1324,7 +1234,7 @@ static int raw3270_pm_stop(struct ccw_device *cdev)
if (!rp)
return 0;
spin_lock_irqsave(get_ccwdev_lock(rp->cdev), flags);
- if (rp->view)
+ if (rp->view && rp->view->fn->deactivate)
rp->view->fn->deactivate(rp->view);
if (!test_bit(RAW3270_FLAGS_CONSOLE, &rp->flags)) {
/*
@@ -1351,7 +1261,7 @@ static int raw3270_pm_start(struct ccw_device *cdev)
return 0;
spin_lock_irqsave(get_ccwdev_lock(rp->cdev), flags);
clear_bit(RAW3270_FLAGS_FROZEN, &rp->flags);
- if (rp->view)
+ if (rp->view && rp->view->fn->activate)
rp->view->fn->activate(rp->view);
spin_unlock_irqrestore(get_ccwdev_lock(rp->cdev), flags);
return 0;
@@ -1434,6 +1344,7 @@ MODULE_LICENSE("GPL");
module_init(raw3270_init);
module_exit(raw3270_exit);
+EXPORT_SYMBOL(class3270);
EXPORT_SYMBOL(raw3270_request_alloc);
EXPORT_SYMBOL(raw3270_request_free);
EXPORT_SYMBOL(raw3270_request_reset);
diff --git a/drivers/s390/char/raw3270.h b/drivers/s390/char/raw3270.h
index ed34eb2199c..7b73ff8c1bd 100644
--- a/drivers/s390/char/raw3270.h
+++ b/drivers/s390/char/raw3270.h
@@ -91,6 +91,7 @@ struct raw3270_iocb {
struct raw3270;
struct raw3270_view;
+extern struct class *class3270;
/* 3270 CCW request */
struct raw3270_request {
@@ -140,6 +141,7 @@ struct raw3270_fn {
struct raw3270_request *, struct irb *);
void (*release)(struct raw3270_view *);
void (*free)(struct raw3270_view *);
+ void (*resize)(struct raw3270_view *, int, int, int);
};
/*
@@ -192,8 +194,14 @@ struct raw3270 *raw3270_setup_console(struct ccw_device *cdev);
void raw3270_wait_cons_dev(struct raw3270 *);
/* Notifier for device addition/removal */
-int raw3270_register_notifier(void (*notifier)(int, int));
-void raw3270_unregister_notifier(void (*notifier)(int, int));
+struct raw3270_notifier {
+ struct list_head list;
+ void (*create)(int minor);
+ void (*destroy)(int minor);
+};
+
+int raw3270_register_notifier(struct raw3270_notifier *);
+void raw3270_unregister_notifier(struct raw3270_notifier *);
void raw3270_pm_unfreeze(struct raw3270_view *);
/*
diff --git a/drivers/s390/char/sclp.c b/drivers/s390/char/sclp.c
index 12c16a65dd2..bd6871bf545 100644
--- a/drivers/s390/char/sclp.c
+++ b/drivers/s390/char/sclp.c
@@ -450,7 +450,7 @@ sclp_sync_wait(void)
timeout = 0;
if (timer_pending(&sclp_request_timer)) {
/* Get timeout TOD value */
- timeout = get_clock() +
+ timeout = get_tod_clock() +
sclp_tod_from_jiffies(sclp_request_timer.expires -
jiffies);
}
@@ -472,7 +472,7 @@ sclp_sync_wait(void)
while (sclp_running_state != sclp_running_state_idle) {
/* Check for expired request timer */
if (timer_pending(&sclp_request_timer) &&
- get_clock() > timeout &&
+ get_tod_clock() > timeout &&
del_timer(&sclp_request_timer))
sclp_request_timer.function(sclp_request_timer.data);
cpu_relax();
diff --git a/drivers/s390/char/sclp_cmd.c b/drivers/s390/char/sclp_cmd.c
index c44d13f607b..30a2255389e 100644
--- a/drivers/s390/char/sclp_cmd.c
+++ b/drivers/s390/char/sclp_cmd.c
@@ -56,7 +56,6 @@ static int __initdata early_read_info_sccb_valid;
u64 sclp_facilities;
static u8 sclp_fac84;
-static u8 sclp_fac85;
static unsigned long long rzm;
static unsigned long long rnmax;
@@ -131,7 +130,8 @@ void __init sclp_facilities_detect(void)
sccb = &early_read_info_sccb;
sclp_facilities = sccb->facilities;
sclp_fac84 = sccb->fac84;
- sclp_fac85 = sccb->fac85;
+ if (sccb->fac85 & 0x02)
+ S390_lowcore.machine_flags |= MACHINE_FLAG_ESOP;
rnmax = sccb->rnmax ? sccb->rnmax : sccb->rnmax2;
rzm = sccb->rnsize ? sccb->rnsize : sccb->rnsize2;
rzm <<= 20;
@@ -171,12 +171,6 @@ unsigned long long sclp_get_rzm(void)
return rzm;
}
-u8 sclp_get_fac85(void)
-{
- return sclp_fac85;
-}
-EXPORT_SYMBOL_GPL(sclp_get_fac85);
-
/*
* This function will be called after sclp_facilities_detect(), which gets
* called from early.c code. Therefore the sccb should have valid contents.
diff --git a/drivers/s390/char/tty3270.c b/drivers/s390/char/tty3270.c
index 3860e796b65..b907dba2402 100644
--- a/drivers/s390/char/tty3270.c
+++ b/drivers/s390/char/tty3270.c
@@ -15,6 +15,7 @@
#include <linux/init.h>
#include <linux/console.h>
#include <linux/interrupt.h>
+#include <linux/workqueue.h>
#include <linux/slab.h>
#include <linux/bootmem.h>
@@ -80,6 +81,8 @@ struct tty3270 {
unsigned int highlight; /* Blink/reverse/underscore */
unsigned int f_color; /* Foreground color */
struct tty3270_line *screen;
+ unsigned int n_model, n_cols, n_rows; /* New model & size */
+ struct work_struct resize_work;
/* Input stuff. */
struct string *prompt; /* Output string for input area. */
@@ -115,6 +118,7 @@ struct tty3270 {
#define TTY_UPDATE_ALL 16 /* Recreate screen. */
static void tty3270_update(struct tty3270 *);
+static void tty3270_resize_work(struct work_struct *work);
/*
* Setup timeout for a device. On timeout trigger an update.
@@ -683,12 +687,6 @@ tty3270_alloc_view(void)
INIT_LIST_HEAD(&tp->update);
INIT_LIST_HEAD(&tp->rcl_lines);
tp->rcl_max = 20;
- tty_port_init(&tp->port);
- setup_timer(&tp->timer, (void (*)(unsigned long)) tty3270_update,
- (unsigned long) tp);
- tasklet_init(&tp->readlet,
- (void (*)(unsigned long)) tty3270_read_tasklet,
- (unsigned long) tp->read);
for (pages = 0; pages < TTY3270_STRING_PAGES; pages++) {
tp->freemem_pages[pages] = (void *)
@@ -710,6 +708,15 @@ tty3270_alloc_view(void)
tp->kbd = kbd_alloc();
if (!tp->kbd)
goto out_reset;
+
+ tty_port_init(&tp->port);
+ setup_timer(&tp->timer, (void (*)(unsigned long)) tty3270_update,
+ (unsigned long) tp);
+ tasklet_init(&tp->readlet,
+ (void (*)(unsigned long)) tty3270_read_tasklet,
+ (unsigned long) tp->read);
+ INIT_WORK(&tp->resize_work, tty3270_resize_work);
+
return tp;
out_reset:
@@ -752,42 +759,96 @@ tty3270_free_view(struct tty3270 *tp)
/*
* Allocate tty3270 screen.
*/
-static int
-tty3270_alloc_screen(struct tty3270 *tp)
+static struct tty3270_line *
+tty3270_alloc_screen(unsigned int rows, unsigned int cols)
{
+ struct tty3270_line *screen;
unsigned long size;
int lines;
- size = sizeof(struct tty3270_line) * (tp->view.rows - 2);
- tp->screen = kzalloc(size, GFP_KERNEL);
- if (!tp->screen)
+ size = sizeof(struct tty3270_line) * (rows - 2);
+ screen = kzalloc(size, GFP_KERNEL);
+ if (!screen)
goto out_err;
- for (lines = 0; lines < tp->view.rows - 2; lines++) {
- size = sizeof(struct tty3270_cell) * tp->view.cols;
- tp->screen[lines].cells = kzalloc(size, GFP_KERNEL);
- if (!tp->screen[lines].cells)
+ for (lines = 0; lines < rows - 2; lines++) {
+ size = sizeof(struct tty3270_cell) * cols;
+ screen[lines].cells = kzalloc(size, GFP_KERNEL);
+ if (!screen[lines].cells)
goto out_screen;
}
- return 0;
+ return screen;
out_screen:
while (lines--)
- kfree(tp->screen[lines].cells);
- kfree(tp->screen);
+ kfree(screen[lines].cells);
+ kfree(screen);
out_err:
- return -ENOMEM;
+ return ERR_PTR(-ENOMEM);
}
/*
* Free tty3270 screen.
*/
static void
-tty3270_free_screen(struct tty3270 *tp)
+tty3270_free_screen(struct tty3270_line *screen, unsigned int rows)
{
int lines;
- for (lines = 0; lines < tp->view.rows - 2; lines++)
- kfree(tp->screen[lines].cells);
- kfree(tp->screen);
+ for (lines = 0; lines < rows - 2; lines++)
+ kfree(screen[lines].cells);
+ kfree(screen);
+}
+
+/*
+ * Resize tty3270 screen
+ */
+static void tty3270_resize_work(struct work_struct *work)
+{
+ struct tty3270 *tp = container_of(work, struct tty3270, resize_work);
+ struct tty3270_line *screen, *oscreen;
+ struct tty_struct *tty;
+ unsigned int orows;
+ struct winsize ws;
+
+ screen = tty3270_alloc_screen(tp->n_rows, tp->n_cols);
+ if (!screen)
+ return;
+ /* Switch to new output size */
+ spin_lock_bh(&tp->view.lock);
+ oscreen = tp->screen;
+ orows = tp->view.rows;
+ tp->view.model = tp->n_model;
+ tp->view.rows = tp->n_rows;
+ tp->view.cols = tp->n_cols;
+ tp->screen = screen;
+ free_string(&tp->freemem, tp->prompt);
+ free_string(&tp->freemem, tp->status);
+ tty3270_create_prompt(tp);
+ tty3270_create_status(tp);
+ tp->nr_up = 0;
+ while (tp->nr_lines < tp->view.rows - 2)
+ tty3270_blank_line(tp);
+ tp->update_flags = TTY_UPDATE_ALL;
+ spin_unlock_bh(&tp->view.lock);
+ tty3270_free_screen(oscreen, orows);
+ tty3270_set_timer(tp, 1);
+ /* Informat tty layer about new size */
+ tty = tty_port_tty_get(&tp->port);
+ if (!tty)
+ return;
+ ws.ws_row = tp->view.rows - 2;
+ ws.ws_col = tp->view.cols;
+ tty_do_resize(tty, &ws);
+}
+
+static void
+tty3270_resize(struct raw3270_view *view, int model, int rows, int cols)
+{
+ struct tty3270 *tp = container_of(view, struct tty3270, view);
+
+ tp->n_model = model;
+ tp->n_rows = rows;
+ tp->n_cols = cols;
+ schedule_work(&tp->resize_work);
}
/*
@@ -815,7 +876,8 @@ static void
tty3270_free(struct raw3270_view *view)
{
struct tty3270 *tp = container_of(view, struct tty3270, view);
- tty3270_free_screen(tp);
+
+ tty3270_free_screen(tp->screen, tp->view.rows);
tty3270_free_view(tp);
}
@@ -827,9 +889,8 @@ tty3270_del_views(void)
{
int i;
- for (i = 0; i < tty3270_max_index; i++) {
- struct raw3270_view *view =
- raw3270_find_view(&tty3270_fn, i + RAW3270_FIRSTMINOR);
+ for (i = RAW3270_FIRSTMINOR; i <= tty3270_max_index; i++) {
+ struct raw3270_view *view = raw3270_find_view(&tty3270_fn, i);
if (!IS_ERR(view))
raw3270_del_view(view);
}
@@ -840,7 +901,8 @@ static struct raw3270_fn tty3270_fn = {
.deactivate = tty3270_deactivate,
.intv = (void *) tty3270_irq,
.release = tty3270_release,
- .free = tty3270_free
+ .free = tty3270_free,
+ .resize = tty3270_resize
};
/*
@@ -853,8 +915,7 @@ static int tty3270_install(struct tty_driver *driver, struct tty_struct *tty)
int i, rc;
/* Check if the tty3270 is already there. */
- view = raw3270_find_view(&tty3270_fn,
- tty->index + RAW3270_FIRSTMINOR);
+ view = raw3270_find_view(&tty3270_fn, tty->index);
if (!IS_ERR(view)) {
tp = container_of(view, struct tty3270, view);
tty->driver_data = tp;
@@ -866,29 +927,26 @@ static int tty3270_install(struct tty_driver *driver, struct tty_struct *tty)
tp->inattr = TF_INPUT;
return tty_port_install(&tp->port, driver, tty);
}
- if (tty3270_max_index < tty->index + 1)
- tty3270_max_index = tty->index + 1;
-
- /* Quick exit if there is no device for tty->index. */
- if (PTR_ERR(view) == -ENODEV)
- return -ENODEV;
+ if (tty3270_max_index < tty->index)
+ tty3270_max_index = tty->index;
/* Allocate tty3270 structure on first open. */
tp = tty3270_alloc_view();
if (IS_ERR(tp))
return PTR_ERR(tp);
- rc = raw3270_add_view(&tp->view, &tty3270_fn,
- tty->index + RAW3270_FIRSTMINOR);
+ rc = raw3270_add_view(&tp->view, &tty3270_fn, tty->index);
if (rc) {
tty3270_free_view(tp);
return rc;
}
- rc = tty3270_alloc_screen(tp);
- if (rc) {
+ tp->screen = tty3270_alloc_screen(tp->view.cols, tp->view.rows);
+ if (IS_ERR(tp->screen)) {
+ rc = PTR_ERR(tp->screen);
raw3270_put_view(&tp->view);
raw3270_del_view(&tp->view);
+ tty3270_free_view(tp);
return rc;
}
@@ -926,6 +984,20 @@ static int tty3270_install(struct tty_driver *driver, struct tty_struct *tty)
}
/*
+ * This routine is called whenever a 3270 tty is opened.
+ */
+static int
+tty3270_open(struct tty_struct *tty, struct file *filp)
+{
+ struct tty3270 *tp = tty->driver_data;
+ struct tty_port *port = &tp->port;
+
+ port->count++;
+ tty_port_tty_set(port, tty);
+ return 0;
+}
+
+/*
* This routine is called when the 3270 tty is closed. We wait
* for the remaining request to be completed. Then we clean up.
*/
@@ -1753,6 +1825,7 @@ static long tty3270_compat_ioctl(struct tty_struct *tty,
static const struct tty_operations tty3270_ops = {
.install = tty3270_install,
.cleanup = tty3270_cleanup,
+ .open = tty3270_open,
.close = tty3270_close,
.write = tty3270_write,
.put_char = tty3270_put_char,
@@ -1771,6 +1844,22 @@ static const struct tty_operations tty3270_ops = {
.set_termios = tty3270_set_termios
};
+void tty3270_create_cb(int minor)
+{
+ tty_register_device(tty3270_driver, minor, NULL);
+}
+
+void tty3270_destroy_cb(int minor)
+{
+ tty_unregister_device(tty3270_driver, minor);
+}
+
+struct raw3270_notifier tty3270_notifier =
+{
+ .create = tty3270_create_cb,
+ .destroy = tty3270_destroy_cb,
+};
+
/*
* 3270 tty registration code called from tty_init().
* Most kernel services (incl. kmalloc) are available at this poimt.
@@ -1780,23 +1869,25 @@ static int __init tty3270_init(void)
struct tty_driver *driver;
int ret;
- driver = alloc_tty_driver(RAW3270_MAXDEVS);
- if (!driver)
- return -ENOMEM;
+ driver = tty_alloc_driver(RAW3270_MAXDEVS,
+ TTY_DRIVER_REAL_RAW |
+ TTY_DRIVER_DYNAMIC_DEV |
+ TTY_DRIVER_RESET_TERMIOS);
+ if (IS_ERR(driver))
+ return PTR_ERR(driver);
/*
* Initialize the tty_driver structure
* Entries in tty3270_driver that are NOT initialized:
* proc_entry, set_termios, flush_buffer, set_ldisc, write_proc
*/
- driver->driver_name = "ttyTUB";
- driver->name = "ttyTUB";
+ driver->driver_name = "tty3270";
+ driver->name = "3270/tty";
driver->major = IBM_TTY3270_MAJOR;
- driver->minor_start = RAW3270_FIRSTMINOR;
+ driver->minor_start = 0;
driver->type = TTY_DRIVER_TYPE_SYSTEM;
driver->subtype = SYSTEM_TYPE_TTY;
driver->init_termios = tty_std_termios;
- driver->flags = TTY_DRIVER_RESET_TERMIOS;
tty_set_operations(driver, &tty3270_ops);
ret = tty_register_driver(driver);
if (ret) {
@@ -1804,6 +1895,7 @@ static int __init tty3270_init(void)
return ret;
}
tty3270_driver = driver;
+ raw3270_register_notifier(&tty3270_notifier);
return 0;
}
@@ -1812,6 +1904,7 @@ tty3270_exit(void)
{
struct tty_driver *driver;
+ raw3270_unregister_notifier(&tty3270_notifier);
driver = tty3270_driver;
tty3270_driver = NULL;
tty_unregister_driver(driver);
diff --git a/drivers/s390/char/zcore.c b/drivers/s390/char/zcore.c
index e3b9308b0fe..1d61a01576d 100644
--- a/drivers/s390/char/zcore.c
+++ b/drivers/s390/char/zcore.c
@@ -62,6 +62,7 @@ static struct dentry *zcore_dir;
static struct dentry *zcore_file;
static struct dentry *zcore_memmap_file;
static struct dentry *zcore_reipl_file;
+static struct dentry *zcore_hsa_file;
static struct ipl_parameter_block *ipl_block;
/*
@@ -77,6 +78,8 @@ static int memcpy_hsa(void *dest, unsigned long src, size_t count, int mode)
int offs, blk_num;
static char buf[PAGE_SIZE] __attribute__((__aligned__(PAGE_SIZE)));
+ if (!hsa_available)
+ return -ENODATA;
if (count == 0)
return 0;
@@ -278,6 +281,15 @@ next:
}
/*
+ * Release the HSA
+ */
+static void release_hsa(void)
+{
+ diag308(DIAG308_REL_HSA, NULL);
+ hsa_available = 0;
+}
+
+/*
* Read routine for zcore character device
* First 4K are dump header
* Next 32MB are HSA Memory
@@ -363,8 +375,8 @@ static int zcore_open(struct inode *inode, struct file *filp)
static int zcore_release(struct inode *inode, struct file *filep)
{
- diag308(DIAG308_REL_HSA, NULL);
- hsa_available = 0;
+ if (hsa_available)
+ release_hsa();
return 0;
}
@@ -474,6 +486,41 @@ static const struct file_operations zcore_reipl_fops = {
.llseek = no_llseek,
};
+static ssize_t zcore_hsa_read(struct file *filp, char __user *buf,
+ size_t count, loff_t *ppos)
+{
+ static char str[18];
+
+ if (hsa_available)
+ snprintf(str, sizeof(str), "%lx\n", ZFCPDUMP_HSA_SIZE);
+ else
+ snprintf(str, sizeof(str), "0\n");
+ return simple_read_from_buffer(buf, count, ppos, str, strlen(str));
+}
+
+static ssize_t zcore_hsa_write(struct file *filp, const char __user *buf,
+ size_t count, loff_t *ppos)
+{
+ char value;
+
+ if (*ppos != 0)
+ return -EPIPE;
+ if (copy_from_user(&value, buf, 1))
+ return -EFAULT;
+ if (value != '0')
+ return -EINVAL;
+ release_hsa();
+ return count;
+}
+
+static const struct file_operations zcore_hsa_fops = {
+ .owner = THIS_MODULE,
+ .write = zcore_hsa_write,
+ .read = zcore_hsa_read,
+ .open = nonseekable_open,
+ .llseek = no_llseek,
+};
+
#ifdef CONFIG_32BIT
static void __init set_lc_mask(struct save_area *map)
@@ -590,7 +637,7 @@ static int __init zcore_header_init(int arch, struct zcore_header *hdr)
hdr->rmem_size = memory;
hdr->mem_end = sys_info.mem_size;
hdr->num_pages = memory / PAGE_SIZE;
- hdr->tod = get_clock();
+ hdr->tod = get_tod_clock();
get_cpu_id(&hdr->cpu_id);
for (i = 0; zfcpdump_save_areas[i]; i++) {
prefix = zfcpdump_save_areas[i]->pref_reg;
@@ -658,6 +705,7 @@ static int __init zcore_init(void)
rc = check_sdias();
if (rc)
goto fail;
+ hsa_available = 1;
rc = memcpy_hsa_kernel(&arch, __LC_AR_MODE_ID, 1);
if (rc)
@@ -714,9 +762,16 @@ static int __init zcore_init(void)
rc = -ENOMEM;
goto fail_memmap_file;
}
- hsa_available = 1;
+ zcore_hsa_file = debugfs_create_file("hsa", S_IRUSR|S_IWUSR, zcore_dir,
+ NULL, &zcore_hsa_fops);
+ if (!zcore_hsa_file) {
+ rc = -ENOMEM;
+ goto fail_reipl_file;
+ }
return 0;
+fail_reipl_file:
+ debugfs_remove(zcore_reipl_file);
fail_memmap_file:
debugfs_remove(zcore_memmap_file);
fail_file:
@@ -733,6 +788,7 @@ static void __exit zcore_exit(void)
debug_unregister(zcore_dbf);
sclp_sdias_exit();
free_page((unsigned long) ipl_block);
+ debugfs_remove(zcore_hsa_file);
debugfs_remove(zcore_reipl_file);
debugfs_remove(zcore_memmap_file);
debugfs_remove(zcore_file);
diff --git a/drivers/s390/cio/chsc.c b/drivers/s390/cio/chsc.c
index 10729bbcece..31ceef1beb8 100644
--- a/drivers/s390/cio/chsc.c
+++ b/drivers/s390/cio/chsc.c
@@ -435,7 +435,6 @@ static void chsc_process_sei_scm_change(struct chsc_sei_nt0_area *sei_area)
static void chsc_process_sei_nt2(struct chsc_sei_nt2_area *sei_area)
{
-#ifdef CONFIG_PCI
switch (sei_area->cc) {
case 1:
zpci_event_error(sei_area->ccdf);
@@ -444,11 +443,10 @@ static void chsc_process_sei_nt2(struct chsc_sei_nt2_area *sei_area)
zpci_event_availability(sei_area->ccdf);
break;
default:
- CIO_CRW_EVENT(2, "chsc: unhandled sei content code %d\n",
+ CIO_CRW_EVENT(2, "chsc: sei nt2 unhandled cc=%d\n",
sei_area->cc);
break;
}
-#endif
}
static void chsc_process_sei_nt0(struct chsc_sei_nt0_area *sei_area)
@@ -471,13 +469,19 @@ static void chsc_process_sei_nt0(struct chsc_sei_nt0_area *sei_area)
chsc_process_sei_scm_change(sei_area);
break;
default: /* other stuff */
- CIO_CRW_EVENT(4, "chsc: unhandled sei content code %d\n",
+ CIO_CRW_EVENT(2, "chsc: sei nt0 unhandled cc=%d\n",
sei_area->cc);
break;
}
+
+ /* Check if we might have lost some information. */
+ if (sei_area->flags & 0x40) {
+ CIO_CRW_EVENT(2, "chsc: event overflow\n");
+ css_schedule_eval_all();
+ }
}
-static int __chsc_process_crw(struct chsc_sei *sei, u64 ntsm)
+static void chsc_process_event_information(struct chsc_sei *sei, u64 ntsm)
{
do {
memset(sei, 0, sizeof(*sei));
@@ -488,40 +492,37 @@ static int __chsc_process_crw(struct chsc_sei *sei, u64 ntsm)
if (chsc(sei))
break;
- if (sei->response.code == 0x0001) {
- CIO_CRW_EVENT(2, "chsc: sei successful\n");
-
- /* Check if we might have lost some information. */
- if (sei->u.nt0_area.flags & 0x40) {
- CIO_CRW_EVENT(2, "chsc: event overflow\n");
- css_schedule_eval_all();
- }
-
- switch (sei->nt) {
- case 0:
- chsc_process_sei_nt0(&sei->u.nt0_area);
- break;
- case 2:
- chsc_process_sei_nt2(&sei->u.nt2_area);
- break;
- default:
- CIO_CRW_EVENT(2, "chsc: unhandled nt=%d\n",
- sei->nt);
- break;
- }
- } else {
+ if (sei->response.code != 0x0001) {
CIO_CRW_EVENT(2, "chsc: sei failed (rc=%04x)\n",
sei->response.code);
break;
}
- } while (sei->u.nt0_area.flags & 0x80);
- return 0;
+ CIO_CRW_EVENT(2, "chsc: sei successful (nt=%d)\n", sei->nt);
+ switch (sei->nt) {
+ case 0:
+ chsc_process_sei_nt0(&sei->u.nt0_area);
+ break;
+ case 2:
+ chsc_process_sei_nt2(&sei->u.nt2_area);
+ break;
+ default:
+ CIO_CRW_EVENT(2, "chsc: unhandled nt: %d\n", sei->nt);
+ break;
+ }
+ } while (sei->u.nt0_area.flags & 0x80);
}
+/*
+ * Handle channel subsystem related CRWs.
+ * Use store event information to find out what's going on.
+ *
+ * Note: Access to sei_page is serialized through machine check handler
+ * thread, so no need for locking.
+ */
static void chsc_process_crw(struct crw *crw0, struct crw *crw1, int overflow)
{
- struct chsc_sei *sei;
+ struct chsc_sei *sei = sei_page;
if (overflow) {
css_schedule_eval_all();
@@ -531,14 +532,9 @@ static void chsc_process_crw(struct crw *crw0, struct crw *crw1, int overflow)
"chn=%d, rsc=%X, anc=%d, erc=%X, rsid=%X\n",
crw0->slct, crw0->oflw, crw0->chn, crw0->rsc, crw0->anc,
crw0->erc, crw0->rsid);
- if (!sei_page)
- return;
- /* Access to sei_page is serialized through machine check handler
- * thread, so no need for locking. */
- sei = sei_page;
CIO_TRACE_EVENT(2, "prcss");
- __chsc_process_crw(sei, CHSC_SEI_NT0 | CHSC_SEI_NT2);
+ chsc_process_event_information(sei, CHSC_SEI_NT0 | CHSC_SEI_NT2);
}
void chsc_chp_online(struct chp_id chpid)
diff --git a/drivers/s390/cio/chsc.h b/drivers/s390/cio/chsc.h
index 662dab4b93e..227e05f674b 100644
--- a/drivers/s390/cio/chsc.h
+++ b/drivers/s390/cio/chsc.h
@@ -157,7 +157,7 @@ int chsc_scm_info(struct chsc_scm_info *scm_area, u64 token);
#ifdef CONFIG_SCM_BUS
int scm_update_information(void);
#else /* CONFIG_SCM_BUS */
-#define scm_update_information() 0
+static inline int scm_update_information(void) { return 0; }
#endif /* CONFIG_SCM_BUS */
diff --git a/drivers/s390/cio/cio.c b/drivers/s390/cio/cio.c
index c8faf6230b0..986ef6a92a4 100644
--- a/drivers/s390/cio/cio.c
+++ b/drivers/s390/cio/cio.c
@@ -962,9 +962,9 @@ static void css_reset(void)
atomic_inc(&chpid_reset_count);
}
/* Wait for machine check for all channel paths. */
- timeout = get_clock() + (RCHP_TIMEOUT << 12);
+ timeout = get_tod_clock() + (RCHP_TIMEOUT << 12);
while (atomic_read(&chpid_reset_count) != 0) {
- if (get_clock() > timeout)
+ if (get_tod_clock() > timeout)
break;
cpu_relax();
}
diff --git a/drivers/s390/cio/cmf.c b/drivers/s390/cio/cmf.c
index c9fc61c0a86..4495e0627a4 100644
--- a/drivers/s390/cio/cmf.c
+++ b/drivers/s390/cio/cmf.c
@@ -33,7 +33,7 @@
#include <linux/module.h>
#include <linux/moduleparam.h>
#include <linux/slab.h>
-#include <linux/timex.h> /* get_clock() */
+#include <linux/timex.h> /* get_tod_clock() */
#include <asm/ccwdev.h>
#include <asm/cio.h>
@@ -326,7 +326,7 @@ static int cmf_copy_block(struct ccw_device *cdev)
memcpy(cmb_data->last_block, hw_block, cmb_data->size);
memcpy(reference_buf, hw_block, cmb_data->size);
} while (memcmp(cmb_data->last_block, reference_buf, cmb_data->size));
- cmb_data->last_update = get_clock();
+ cmb_data->last_update = get_tod_clock();
kfree(reference_buf);
return 0;
}
@@ -428,7 +428,7 @@ static void cmf_generic_reset(struct ccw_device *cdev)
memset(cmbops->align(cmb_data->hw_block), 0, cmb_data->size);
cmb_data->last_update = 0;
}
- cdev->private->cmb_start_time = get_clock();
+ cdev->private->cmb_start_time = get_tod_clock();
spin_unlock_irq(cdev->ccwlock);
}
diff --git a/drivers/s390/cio/css.c b/drivers/s390/cio/css.c
index fd00afd8b85..a239237d43f 100644
--- a/drivers/s390/cio/css.c
+++ b/drivers/s390/cio/css.c
@@ -780,7 +780,7 @@ static int __init setup_css(int nr)
css->cssid = nr;
dev_set_name(&css->device, "css%x", nr);
css->device.release = channel_subsystem_release;
- tod_high = (u32) (get_clock() >> 32);
+ tod_high = (u32) (get_tod_clock() >> 32);
css_generate_pgid(css, tod_high);
return 0;
}
diff --git a/drivers/s390/cio/device.c b/drivers/s390/cio/device.c
index 7cd5c6812ac..c6767f5a58b 100644
--- a/drivers/s390/cio/device.c
+++ b/drivers/s390/cio/device.c
@@ -632,6 +632,14 @@ initiate_logging(struct device *dev, struct device_attribute *attr,
return count;
}
+static ssize_t vpm_show(struct device *dev, struct device_attribute *attr,
+ char *buf)
+{
+ struct subchannel *sch = to_subchannel(dev);
+
+ return sprintf(buf, "%02x\n", sch->vpm);
+}
+
static DEVICE_ATTR(chpids, 0444, chpids_show, NULL);
static DEVICE_ATTR(pimpampom, 0444, pimpampom_show, NULL);
static DEVICE_ATTR(devtype, 0444, devtype_show, NULL);
@@ -640,11 +648,13 @@ static DEVICE_ATTR(modalias, 0444, modalias_show, NULL);
static DEVICE_ATTR(online, 0644, online_show, online_store);
static DEVICE_ATTR(availability, 0444, available_show, NULL);
static DEVICE_ATTR(logging, 0200, NULL, initiate_logging);
+static DEVICE_ATTR(vpm, 0444, vpm_show, NULL);
static struct attribute *io_subchannel_attrs[] = {
&dev_attr_chpids.attr,
&dev_attr_pimpampom.attr,
&dev_attr_logging.attr,
+ &dev_attr_vpm.attr,
NULL,
};
diff --git a/drivers/s390/cio/device_fsm.c b/drivers/s390/cio/device_fsm.c
index 1bb1d00095a..c7638c54325 100644
--- a/drivers/s390/cio/device_fsm.c
+++ b/drivers/s390/cio/device_fsm.c
@@ -47,7 +47,7 @@ static void ccw_timeout_log(struct ccw_device *cdev)
cc = stsch_err(sch->schid, &schib);
printk(KERN_WARNING "cio: ccw device timeout occurred at %llx, "
- "device information:\n", get_clock());
+ "device information:\n", get_tod_clock());
printk(KERN_WARNING "cio: orb:\n");
print_hex_dump(KERN_WARNING, "cio: ", DUMP_PREFIX_NONE, 16, 1,
orb, sizeof(*orb), 0);
diff --git a/drivers/s390/cio/device_pgid.c b/drivers/s390/cio/device_pgid.c
index 908d287f66c..37ada05e82a 100644
--- a/drivers/s390/cio/device_pgid.c
+++ b/drivers/s390/cio/device_pgid.c
@@ -23,6 +23,8 @@
#define PGID_RETRIES 256
#define PGID_TIMEOUT (10 * HZ)
+static void verify_start(struct ccw_device *cdev);
+
/*
* Process path verification data and report result.
*/
@@ -70,8 +72,8 @@ static void nop_do(struct ccw_device *cdev)
struct subchannel *sch = to_subchannel(cdev->dev.parent);
struct ccw_request *req = &cdev->private->req;
- /* Adjust lpm. */
- req->lpm = lpm_adjust(req->lpm, sch->schib.pmcw.pam & sch->opm);
+ req->lpm = lpm_adjust(req->lpm, sch->schib.pmcw.pam & sch->opm &
+ ~cdev->private->path_noirq_mask);
if (!req->lpm)
goto out_nopath;
nop_build_cp(cdev);
@@ -102,10 +104,20 @@ static void nop_callback(struct ccw_device *cdev, void *data, int rc)
struct subchannel *sch = to_subchannel(cdev->dev.parent);
struct ccw_request *req = &cdev->private->req;
- if (rc == 0)
+ switch (rc) {
+ case 0:
sch->vpm |= req->lpm;
- else if (rc != -EACCES)
+ break;
+ case -ETIME:
+ cdev->private->path_noirq_mask |= req->lpm;
+ break;
+ case -EACCES:
+ cdev->private->path_notoper_mask |= req->lpm;
+ break;
+ default:
goto err;
+ }
+ /* Continue on the next path. */
req->lpm >>= 1;
nop_do(cdev);
return;
@@ -132,6 +144,48 @@ static void spid_build_cp(struct ccw_device *cdev, u8 fn)
req->cp = cp;
}
+static void pgid_wipeout_callback(struct ccw_device *cdev, void *data, int rc)
+{
+ if (rc) {
+ /* We don't know the path groups' state. Abort. */
+ verify_done(cdev, rc);
+ return;
+ }
+ /*
+ * Path groups have been reset. Restart path verification but
+ * leave paths in path_noirq_mask out.
+ */
+ cdev->private->flags.pgid_unknown = 0;
+ verify_start(cdev);
+}
+
+/*
+ * Reset pathgroups and restart path verification, leave unusable paths out.
+ */
+static void pgid_wipeout_start(struct ccw_device *cdev)
+{
+ struct subchannel *sch = to_subchannel(cdev->dev.parent);
+ struct ccw_dev_id *id = &cdev->private->dev_id;
+ struct ccw_request *req = &cdev->private->req;
+ u8 fn;
+
+ CIO_MSG_EVENT(2, "wipe: device 0.%x.%04x: pvm=%02x nim=%02x\n",
+ id->ssid, id->devno, cdev->private->pgid_valid_mask,
+ cdev->private->path_noirq_mask);
+
+ /* Initialize request data. */
+ memset(req, 0, sizeof(*req));
+ req->timeout = PGID_TIMEOUT;
+ req->maxretries = PGID_RETRIES;
+ req->lpm = sch->schib.pmcw.pam;
+ req->callback = pgid_wipeout_callback;
+ fn = SPID_FUNC_DISBAND;
+ if (cdev->private->flags.mpath)
+ fn |= SPID_FUNC_MULTI_PATH;
+ spid_build_cp(cdev, fn);
+ ccw_request_start(cdev);
+}
+
/*
* Perform establish/resign SET PGID on a single path.
*/
@@ -157,11 +211,14 @@ static void spid_do(struct ccw_device *cdev)
return;
out_nopath:
+ if (cdev->private->flags.pgid_unknown) {
+ /* At least one SPID could be partially done. */
+ pgid_wipeout_start(cdev);
+ return;
+ }
verify_done(cdev, sch->vpm ? 0 : -EACCES);
}
-static void verify_start(struct ccw_device *cdev);
-
/*
* Process SET PGID request result for a single path.
*/
@@ -174,7 +231,12 @@ static void spid_callback(struct ccw_device *cdev, void *data, int rc)
case 0:
sch->vpm |= req->lpm & sch->opm;
break;
+ case -ETIME:
+ cdev->private->flags.pgid_unknown = 1;
+ cdev->private->path_noirq_mask |= req->lpm;
+ break;
case -EACCES:
+ cdev->private->path_notoper_mask |= req->lpm;
break;
case -EOPNOTSUPP:
if (cdev->private->flags.mpath) {
@@ -330,8 +392,9 @@ static void snid_done(struct ccw_device *cdev, int rc)
else {
donepm = pgid_to_donepm(cdev);
sch->vpm = donepm & sch->opm;
- cdev->private->pgid_todo_mask &= ~donepm;
cdev->private->pgid_reset_mask |= reset;
+ cdev->private->pgid_todo_mask &=
+ ~(donepm | cdev->private->path_noirq_mask);
pgid_fill(cdev, pgid);
}
out:
@@ -341,6 +404,10 @@ out:
cdev->private->pgid_todo_mask, mismatch, reserved, reset);
switch (rc) {
case 0:
+ if (cdev->private->flags.pgid_unknown) {
+ pgid_wipeout_start(cdev);
+ return;
+ }
/* Anything left to do? */
if (cdev->private->pgid_todo_mask == 0) {
verify_done(cdev, sch->vpm == 0 ? -EACCES : 0);
@@ -384,9 +451,10 @@ static void snid_do(struct ccw_device *cdev)
{
struct subchannel *sch = to_subchannel(cdev->dev.parent);
struct ccw_request *req = &cdev->private->req;
+ int ret;
- /* Adjust lpm if paths are not set in pam. */
- req->lpm = lpm_adjust(req->lpm, sch->schib.pmcw.pam);
+ req->lpm = lpm_adjust(req->lpm, sch->schib.pmcw.pam &
+ ~cdev->private->path_noirq_mask);
if (!req->lpm)
goto out_nopath;
snid_build_cp(cdev);
@@ -394,7 +462,13 @@ static void snid_do(struct ccw_device *cdev)
return;
out_nopath:
- snid_done(cdev, cdev->private->pgid_valid_mask ? 0 : -EACCES);
+ if (cdev->private->pgid_valid_mask)
+ ret = 0;
+ else if (cdev->private->path_noirq_mask)
+ ret = -ETIME;
+ else
+ ret = -EACCES;
+ snid_done(cdev, ret);
}
/*
@@ -404,10 +478,21 @@ static void snid_callback(struct ccw_device *cdev, void *data, int rc)
{
struct ccw_request *req = &cdev->private->req;
- if (rc == 0)
+ switch (rc) {
+ case 0:
cdev->private->pgid_valid_mask |= req->lpm;
- else if (rc != -EACCES)
+ break;
+ case -ETIME:
+ cdev->private->flags.pgid_unknown = 1;
+ cdev->private->path_noirq_mask |= req->lpm;
+ break;
+ case -EACCES:
+ cdev->private->path_notoper_mask |= req->lpm;
+ break;
+ default:
goto err;
+ }
+ /* Continue on the next path. */
req->lpm >>= 1;
snid_do(cdev);
return;
@@ -427,6 +512,13 @@ static void verify_start(struct ccw_device *cdev)
sch->vpm = 0;
sch->lpm = sch->schib.pmcw.pam;
+
+ /* Initialize PGID data. */
+ memset(cdev->private->pgid, 0, sizeof(cdev->private->pgid));
+ cdev->private->pgid_valid_mask = 0;
+ cdev->private->pgid_todo_mask = sch->schib.pmcw.pam;
+ cdev->private->path_notoper_mask = 0;
+
/* Initialize request data. */
memset(req, 0, sizeof(*req));
req->timeout = PGID_TIMEOUT;
@@ -459,14 +551,8 @@ static void verify_start(struct ccw_device *cdev)
*/
void ccw_device_verify_start(struct ccw_device *cdev)
{
- struct subchannel *sch = to_subchannel(cdev->dev.parent);
-
CIO_TRACE_EVENT(4, "vrfy");
CIO_HEX_EVENT(4, &cdev->private->dev_id, sizeof(cdev->private->dev_id));
- /* Initialize PGID data. */
- memset(cdev->private->pgid, 0, sizeof(cdev->private->pgid));
- cdev->private->pgid_valid_mask = 0;
- cdev->private->pgid_todo_mask = sch->schib.pmcw.pam;
/*
* Initialize pathgroup and multipath state with target values.
* They may change in the course of path verification.
@@ -474,6 +560,7 @@ void ccw_device_verify_start(struct ccw_device *cdev)
cdev->private->flags.pgroup = cdev->private->options.pgroup;
cdev->private->flags.mpath = cdev->private->options.mpath;
cdev->private->flags.doverify = 0;
+ cdev->private->path_noirq_mask = 0;
verify_start(cdev);
}
diff --git a/drivers/s390/cio/io_sch.h b/drivers/s390/cio/io_sch.h
index 76253dfcc1b..b108f4a5c7d 100644
--- a/drivers/s390/cio/io_sch.h
+++ b/drivers/s390/cio/io_sch.h
@@ -126,6 +126,10 @@ struct ccw_device_private {
u8 pgid_valid_mask; /* mask of valid PGIDs */
u8 pgid_todo_mask; /* mask of PGIDs to be adjusted */
u8 pgid_reset_mask; /* mask of PGIDs which were reset */
+ u8 path_noirq_mask; /* mask of paths for which no irq was
+ received */
+ u8 path_notoper_mask; /* mask of paths which were found
+ not operable */
u8 path_gone_mask; /* mask of paths, that became unavailable */
u8 path_new_mask; /* mask of paths, that became available */
struct {
@@ -145,6 +149,7 @@ struct ccw_device_private {
unsigned int resuming:1; /* recognition while resume */
unsigned int pgroup:1; /* pathgroup is set up */
unsigned int mpath:1; /* multipathing is set up */
+ unsigned int pgid_unknown:1;/* unknown pgid state */
unsigned int initialized:1; /* set if initial reference held */
} __attribute__((packed)) flags;
unsigned long intparm; /* user interruption parameter */
diff --git a/drivers/s390/cio/qdio_main.c b/drivers/s390/cio/qdio_main.c
index 1671d3461f2..abc550e5dd3 100644
--- a/drivers/s390/cio/qdio_main.c
+++ b/drivers/s390/cio/qdio_main.c
@@ -338,10 +338,10 @@ again:
retries++;
if (!start_time) {
- start_time = get_clock();
+ start_time = get_tod_clock();
goto again;
}
- if ((get_clock() - start_time) < QDIO_BUSY_BIT_PATIENCE)
+ if ((get_tod_clock() - start_time) < QDIO_BUSY_BIT_PATIENCE)
goto again;
}
if (retries) {
@@ -504,7 +504,7 @@ static int get_inbound_buffer_frontier(struct qdio_q *q)
int count, stop;
unsigned char state = 0;
- q->timestamp = get_clock();
+ q->timestamp = get_tod_clock();
/*
* Don't check 128 buffers, as otherwise qdio_inbound_q_moved
@@ -563,7 +563,7 @@ static int qdio_inbound_q_moved(struct qdio_q *q)
if (bufnr != q->last_move) {
q->last_move = bufnr;
if (!is_thinint_irq(q->irq_ptr) && MACHINE_IS_LPAR)
- q->u.in.timestamp = get_clock();
+ q->u.in.timestamp = get_tod_clock();
return 1;
} else
return 0;
@@ -595,7 +595,7 @@ static inline int qdio_inbound_q_done(struct qdio_q *q)
* At this point we know, that inbound first_to_check
* has (probably) not moved (see qdio_inbound_processing).
*/
- if (get_clock() > q->u.in.timestamp + QDIO_INPUT_THRESHOLD) {
+ if (get_tod_clock() > q->u.in.timestamp + QDIO_INPUT_THRESHOLD) {
DBF_DEV_EVENT(DBF_INFO, q->irq_ptr, "in done:%02x",
q->first_to_check);
return 1;
@@ -772,7 +772,7 @@ static int get_outbound_buffer_frontier(struct qdio_q *q)
int count, stop;
unsigned char state = 0;
- q->timestamp = get_clock();
+ q->timestamp = get_tod_clock();
if (need_siga_sync(q))
if (((queue_type(q) != QDIO_IQDIO_QFMT) &&
diff --git a/drivers/s390/net/qeth_core.h b/drivers/s390/net/qeth_core.h
index d690b33846c..d87961d4c0d 100644
--- a/drivers/s390/net/qeth_core.h
+++ b/drivers/s390/net/qeth_core.h
@@ -818,7 +818,7 @@ static inline struct qeth_card *CARD_FROM_CDEV(struct ccw_device *cdev)
static inline int qeth_get_micros(void)
{
- return (int) (get_clock() >> 12);
+ return (int) (get_tod_clock() >> 12);
}
static inline int qeth_get_ip_version(struct sk_buff *skb)
diff --git a/drivers/s390/scsi/zfcp_fsf.c b/drivers/s390/scsi/zfcp_fsf.c
index c96320d79fb..c7e148f33b2 100644
--- a/drivers/s390/scsi/zfcp_fsf.c
+++ b/drivers/s390/scsi/zfcp_fsf.c
@@ -727,7 +727,7 @@ static int zfcp_fsf_req_send(struct zfcp_fsf_req *req)
zfcp_reqlist_add(adapter->req_list, req);
req->qdio_req.qdio_outb_usage = atomic_read(&qdio->req_q_free);
- req->issued = get_clock();
+ req->issued = get_tod_clock();
if (zfcp_qdio_send(qdio, &req->qdio_req)) {
del_timer(&req->timer);
/* lookup request again, list might have changed */
diff --git a/drivers/s390/scsi/zfcp_qdio.c b/drivers/s390/scsi/zfcp_qdio.c
index 50b5615848f..665e3cfaaf8 100644
--- a/drivers/s390/scsi/zfcp_qdio.c
+++ b/drivers/s390/scsi/zfcp_qdio.c
@@ -68,7 +68,7 @@ static inline void zfcp_qdio_account(struct zfcp_qdio *qdio)
unsigned long long now, span;
int used;
- now = get_clock_monotonic();
+ now = get_tod_clock_monotonic();
span = (now - qdio->req_q_time) >> 12;
used = QDIO_MAX_BUFFERS_PER_Q - atomic_read(&qdio->req_q_free);
qdio->req_q_util += used * span;
diff --git a/drivers/tty/tty_io.c b/drivers/tty/tty_io.c
index 60e48a11b66..fd473639ab7 100644
--- a/drivers/tty/tty_io.c
+++ b/drivers/tty/tty_io.c
@@ -2199,6 +2199,7 @@ done:
mutex_unlock(&tty->termios_mutex);
return 0;
}
+EXPORT_SYMBOL(tty_do_resize);
/**
* tiocswinsz - implement window size set ioctl
diff --git a/drivers/uio/Kconfig b/drivers/uio/Kconfig
index f56d185790e..e92eeaf251f 100644
--- a/drivers/uio/Kconfig
+++ b/drivers/uio/Kconfig
@@ -1,6 +1,5 @@
menuconfig UIO
tristate "Userspace I/O drivers"
- depends on !S390
help
Enable this to allow the userspace driver core code to be
built. This code allows userspace programs easy access to
diff --git a/include/asm-generic/io.h b/include/asm-generic/io.h
index 33bbbae4ddc..8e260cf0135 100644
--- a/include/asm-generic/io.h
+++ b/include/asm-generic/io.h
@@ -53,8 +53,18 @@ static inline u32 __raw_readl(const volatile void __iomem *addr)
#endif
#define readb __raw_readb
-#define readw(addr) __le16_to_cpu(__raw_readw(addr))
-#define readl(addr) __le32_to_cpu(__raw_readl(addr))
+
+#define readw readw
+static inline u16 readw(const volatile void __iomem *addr)
+{
+ return __le16_to_cpu(__raw_readw(addr));
+}
+
+#define readl readl
+static inline u32 readl(const volatile void __iomem *addr)
+{
+ return __le32_to_cpu(__raw_readl(addr));
+}
#ifndef __raw_writeb
static inline void __raw_writeb(u8 b, volatile void __iomem *addr)
@@ -89,7 +99,11 @@ static inline u64 __raw_readq(const volatile void __iomem *addr)
}
#endif
-#define readq(addr) __le64_to_cpu(__raw_readq(addr))
+#define readq readq
+static inline u64 readq(const volatile void __iomem *addr)
+{
+ return __le64_to_cpu(__raw_readq(addr));
+}
#ifndef __raw_writeq
static inline void __raw_writeq(u64 b, volatile void __iomem *addr)
diff --git a/include/asm-generic/pgtable.h b/include/asm-generic/pgtable.h
index 5cf680a98f9..bfd87685fc1 100644
--- a/include/asm-generic/pgtable.h
+++ b/include/asm-generic/pgtable.h
@@ -197,16 +197,6 @@ static inline int pmd_same(pmd_t pmd_a, pmd_t pmd_b)
#endif /* CONFIG_TRANSPARENT_HUGEPAGE */
#endif
-#ifndef __HAVE_ARCH_PAGE_TEST_AND_CLEAR_DIRTY
-#define page_test_and_clear_dirty(pfn, mapped) (0)
-#endif
-
-#ifndef __HAVE_ARCH_PAGE_TEST_AND_CLEAR_DIRTY
-#define pte_maybe_dirty(pte) pte_dirty(pte)
-#else
-#define pte_maybe_dirty(pte) (1)
-#endif
-
#ifndef __HAVE_ARCH_PAGE_TEST_AND_CLEAR_YOUNG
#define page_test_and_clear_young(pfn) (0)
#endif
diff --git a/include/linux/page-flags.h b/include/linux/page-flags.h
index 70473da47b3..6d53675c2b5 100644
--- a/include/linux/page-flags.h
+++ b/include/linux/page-flags.h
@@ -303,21 +303,13 @@ static inline void __SetPageUptodate(struct page *page)
static inline void SetPageUptodate(struct page *page)
{
-#ifdef CONFIG_S390
- if (!test_and_set_bit(PG_uptodate, &page->flags))
- page_set_storage_key(page_to_phys(page), PAGE_DEFAULT_KEY, 0);
-#else
/*
* Memory barrier must be issued before setting the PG_uptodate bit,
* so that all previous stores issued in order to bring the page
* uptodate are actually visible before PageUptodate becomes true.
- *
- * s390 doesn't need an explicit smp_wmb here because the test and
- * set bit already provides full barriers.
*/
smp_wmb();
set_bit(PG_uptodate, &(page)->flags);
-#endif
}
CLEARPAGEFLAG(Uptodate, uptodate)
diff --git a/mm/rmap.c b/mm/rmap.c
index 2c78f8cadc9..3d38edffda4 100644
--- a/mm/rmap.c
+++ b/mm/rmap.c
@@ -1126,7 +1126,6 @@ void page_add_file_rmap(struct page *page)
*/
void page_remove_rmap(struct page *page)
{
- struct address_space *mapping = page_mapping(page);
bool anon = PageAnon(page);
bool locked;
unsigned long flags;
@@ -1144,29 +1143,6 @@ void page_remove_rmap(struct page *page)
goto out;
/*
- * Now that the last pte has gone, s390 must transfer dirty
- * flag from storage key to struct page. We can usually skip
- * this if the page is anon, so about to be freed; but perhaps
- * not if it's in swapcache - there might be another pte slot
- * containing the swap entry, but page not yet written to swap.
- *
- * And we can skip it on file pages, so long as the filesystem
- * participates in dirty tracking (note that this is not only an
- * optimization but also solves problems caused by dirty flag in
- * storage key getting set by a write from inside kernel); but need to
- * catch shm and tmpfs and ramfs pages which have been modified since
- * creation by read fault.
- *
- * Note that mapping must be decided above, before decrementing
- * mapcount (which luckily provides a barrier): once page is unmapped,
- * it could be truncated and page->mapping reset to NULL at any moment.
- * Note also that we are relying on page_mapping(page) to set mapping
- * to &swapper_space when PageSwapCache(page).
- */
- if (mapping && !mapping_cap_account_dirty(mapping) &&
- page_test_and_clear_dirty(page_to_pfn(page), 1))
- set_page_dirty(page);
- /*
* Hugepages are not counted in NR_ANON_PAGES nor NR_FILE_MAPPED
* and not charged by memcg for now.
*/
diff --git a/net/iucv/iucv.c b/net/iucv/iucv.c
index df082508362..4fe76ff214c 100644
--- a/net/iucv/iucv.c
+++ b/net/iucv/iucv.c
@@ -831,8 +831,11 @@ static int iucv_reboot_event(struct notifier_block *this,
{
int i;
+ if (cpumask_empty(&iucv_irq_cpumask))
+ return NOTIFY_DONE;
+
get_online_cpus();
- on_each_cpu(iucv_block_cpu, NULL, 1);
+ on_each_cpu_mask(&iucv_irq_cpumask, iucv_block_cpu, NULL, 1);
preempt_disable();
for (i = 0; i < iucv_max_pathid; i++) {
if (iucv_path_table[i])