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authorLinus Torvalds <torvalds@linux-foundation.org>2013-02-21 17:54:03 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2013-02-21 17:54:03 -0800
commit81ec44a6c69342fec1b1140c60a604027e429f69 (patch)
treeee6bec8a94ef28e111bf766cf4b7a9366cb4f7c1 /arch
parent48a732dfaa77a4dfec803aa8f248373998704f76 (diff)
parente80cfc31d872b6b85b8966bce6ba80bee401a7dd (diff)
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux
Pull s390 update from Martin Schwidefsky: "The most prominent change in this patch set is the software dirty bit patch for s390. It removes __HAVE_ARCH_PAGE_TEST_AND_CLEAR_DIRTY and the page_test_and_clear_dirty primitive which makes the common memory management code a bit less obscure. Heiko fixed most of the PCI related fallout, more often than not missing GENERIC_HARDIRQS dependencies. Notable is one of the 3270 patches which adds an export to tty_io to be able to resize a tty. The rest is the usual bunch of cleanups and bug fixes." * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux: (42 commits) s390/module: Add missing R_390_NONE relocation type drivers/gpio: add missing GENERIC_HARDIRQ dependency drivers/input: add couple of missing GENERIC_HARDIRQS dependencies s390/cleanup: rename SPP to LPP s390/mm: implement software dirty bits s390/mm: Fix crst upgrade of mmap with MAP_FIXED s390/linker skript: discard exit.data at runtime drivers/media: add missing GENERIC_HARDIRQS dependency s390/bpf,jit: add vlan tag support drivers/net,AT91RM9200: add missing GENERIC_HARDIRQS dependency iucv: fix kernel panic at reboot s390/Kconfig: sort list of arch selected config options phylib: remove !S390 dependeny from Kconfig uio: remove !S390 dependency from Kconfig dasd: fix sysfs cleanup in dasd_generic_remove s390/pci: fix hotplug module init s390/pci: cleanup clp page allocation s390/pci: cleanup clp inline assembly s390/perf: cpum_cf: fallback to software sampling events s390/mm: provide PAGE_SHARED define ...
Diffstat (limited to 'arch')
-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
38 files changed, 420 insertions, 302 deletions
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)