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authorAndré Fabian Silva Delgado <emulatorman@parabola.nu>2016-01-20 14:01:31 -0300
committerAndré Fabian Silva Delgado <emulatorman@parabola.nu>2016-01-20 14:01:31 -0300
commitb4b7ff4b08e691656c9d77c758fc355833128ac0 (patch)
tree82fcb00e6b918026dc9f2d1f05ed8eee83874cc0 /arch/s390
parent35acfa0fc609f2a2cd95cef4a6a9c3a5c38f1778 (diff)
Linux-libre 4.4-gnupck-4.4-gnu
Diffstat (limited to 'arch/s390')
-rw-r--r--arch/s390/Kconfig3
-rw-r--r--arch/s390/crypto/sha.h2
-rw-r--r--arch/s390/hypfs/hypfs_diag.c10
-rw-r--r--arch/s390/hypfs/hypfs_diag0c.c2
-rw-r--r--arch/s390/hypfs/hypfs_sprp.c9
-rw-r--r--arch/s390/hypfs/hypfs_vm.c2
-rw-r--r--arch/s390/include/asm/appldata.h2
-rw-r--r--arch/s390/include/asm/atomic.h2
-rw-r--r--arch/s390/include/asm/barrier.h8
-rw-r--r--arch/s390/include/asm/bitops.h55
-rw-r--r--arch/s390/include/asm/cio.h11
-rw-r--r--arch/s390/include/asm/cmb.h1
-rw-r--r--arch/s390/include/asm/cmpxchg.h30
-rw-r--r--arch/s390/include/asm/cpu_mf.h5
-rw-r--r--arch/s390/include/asm/ctl_reg.h2
-rw-r--r--arch/s390/include/asm/diag.h29
-rw-r--r--arch/s390/include/asm/elf.h13
-rw-r--r--arch/s390/include/asm/etr.h10
-rw-r--r--arch/s390/include/asm/fpu/api.h30
-rw-r--r--arch/s390/include/asm/fpu/internal.h (renamed from arch/s390/include/asm/fpu-internal.h)51
-rw-r--r--arch/s390/include/asm/fpu/types.h25
-rw-r--r--arch/s390/include/asm/idle.h2
-rw-r--r--arch/s390/include/asm/ipl.h3
-rw-r--r--arch/s390/include/asm/irq.h14
-rw-r--r--arch/s390/include/asm/kvm_host.h4
-rw-r--r--arch/s390/include/asm/kvm_para.h67
-rw-r--r--arch/s390/include/asm/lowcore.h11
-rw-r--r--arch/s390/include/asm/nmi.h98
-rw-r--r--arch/s390/include/asm/pci.h4
-rw-r--r--arch/s390/include/asm/pci_dma.h5
-rw-r--r--arch/s390/include/asm/pgtable.h66
-rw-r--r--arch/s390/include/asm/processor.h99
-rw-r--r--arch/s390/include/asm/ptrace.h11
-rw-r--r--arch/s390/include/asm/setup.h50
-rw-r--r--arch/s390/include/asm/spinlock.h3
-rw-r--r--arch/s390/include/asm/switch_to.h2
-rw-r--r--arch/s390/include/asm/thread_info.h22
-rw-r--r--arch/s390/include/asm/trace/diag.h43
-rw-r--r--arch/s390/include/uapi/asm/unistd.h19
-rw-r--r--arch/s390/kernel/Makefile2
-rw-r--r--arch/s390/kernel/asm-offsets.c290
-rw-r--r--arch/s390/kernel/compat_signal.c7
-rw-r--r--arch/s390/kernel/compat_wrapper.c1
-rw-r--r--arch/s390/kernel/cpcmd.c2
-rw-r--r--arch/s390/kernel/crash_dump.c16
-rw-r--r--arch/s390/kernel/diag.c134
-rw-r--r--arch/s390/kernel/dis.c17
-rw-r--r--arch/s390/kernel/early.c15
-rw-r--r--arch/s390/kernel/entry.S230
-rw-r--r--arch/s390/kernel/entry.h3
-rw-r--r--arch/s390/kernel/head.S95
-rw-r--r--arch/s390/kernel/head64.S7
-rw-r--r--arch/s390/kernel/ipl.c74
-rw-r--r--arch/s390/kernel/irq.c1
-rw-r--r--arch/s390/kernel/nmi.c120
-rw-r--r--arch/s390/kernel/perf_cpum_cf.c35
-rw-r--r--arch/s390/kernel/perf_cpum_sf.c10
-rw-r--r--arch/s390/kernel/process.c43
-rw-r--r--arch/s390/kernel/processor.c5
-rw-r--r--arch/s390/kernel/ptrace.c44
-rw-r--r--arch/s390/kernel/runtime_instr.c64
-rw-r--r--arch/s390/kernel/s390_ksyms.c3
-rw-r--r--arch/s390/kernel/sclp.c2
-rw-r--r--arch/s390/kernel/setup.c3
-rw-r--r--arch/s390/kernel/signal.c7
-rw-r--r--arch/s390/kernel/smp.c10
-rw-r--r--arch/s390/kernel/syscalls.S1
-rw-r--r--arch/s390/kernel/time.c31
-rw-r--r--arch/s390/kernel/topology.c28
-rw-r--r--arch/s390/kernel/trace.c29
-rw-r--r--arch/s390/kernel/traps.c41
-rw-r--r--arch/s390/kernel/vdso.c2
-rw-r--r--arch/s390/kvm/intercept.c42
-rw-r--r--arch/s390/kvm/interrupt.c116
-rw-r--r--arch/s390/kvm/kvm-s390.c60
-rw-r--r--arch/s390/kvm/kvm-s390.h35
-rw-r--r--arch/s390/kvm/priv.c21
-rw-r--r--arch/s390/lib/delay.c30
-rw-r--r--arch/s390/lib/find.c4
-rw-r--r--arch/s390/lib/spinlock.c4
-rw-r--r--arch/s390/mm/extmem.c3
-rw-r--r--arch/s390/mm/fault.c7
-rw-r--r--arch/s390/mm/hugetlbpage.c2
-rw-r--r--arch/s390/mm/init.c30
-rw-r--r--arch/s390/mm/mmap.c60
-rw-r--r--arch/s390/net/bpf_jit_comp.c2
-rw-r--r--arch/s390/numa/mode_emu.c10
-rw-r--r--arch/s390/pci/pci_dma.c111
88 files changed, 1477 insertions, 1257 deletions
diff --git a/arch/s390/Kconfig b/arch/s390/Kconfig
index 1d57000b1..3a55f493c 100644
--- a/arch/s390/Kconfig
+++ b/arch/s390/Kconfig
@@ -101,6 +101,7 @@ config S390
select ARCH_SAVE_PAGE_KEYS if HIBERNATION
select ARCH_SUPPORTS_ATOMIC_RMW
select ARCH_SUPPORTS_NUMA_BALANCING
+ select ARCH_USE_BUILTIN_BSWAP
select ARCH_USE_CMPXCHG_LOCKREF
select ARCH_WANTS_PROT_NUMA_PROT_NONE
select ARCH_WANT_IPC_PARSE_VERSION
@@ -118,6 +119,7 @@ config S390
select HAVE_ARCH_EARLY_PFN_TO_NID
select HAVE_ARCH_JUMP_LABEL
select HAVE_ARCH_SECCOMP_FILTER
+ select HAVE_ARCH_SOFT_DIRTY
select HAVE_ARCH_TRACEHOOK
select HAVE_ARCH_TRANSPARENT_HUGEPAGE
select HAVE_BPF_JIT if PACK_STACK && HAVE_MARCH_Z196_FEATURES
@@ -582,6 +584,7 @@ menuconfig PCI
bool "PCI support"
select HAVE_DMA_ATTRS
select PCI_MSI
+ select IOMMU_SUPPORT
help
Enable PCI support.
diff --git a/arch/s390/crypto/sha.h b/arch/s390/crypto/sha.h
index f4e9dc716..10f200790 100644
--- a/arch/s390/crypto/sha.h
+++ b/arch/s390/crypto/sha.h
@@ -19,7 +19,7 @@
#include <crypto/sha.h>
/* must be big enough for the largest SHA variant */
-#define SHA_MAX_STATE_SIZE 16
+#define SHA_MAX_STATE_SIZE (SHA512_DIGEST_SIZE / 4)
#define SHA_MAX_BLOCK_SIZE SHA512_BLOCK_SIZE
struct s390_sha_ctx {
diff --git a/arch/s390/hypfs/hypfs_diag.c b/arch/s390/hypfs/hypfs_diag.c
index 5eeffeefa..045035796 100644
--- a/arch/s390/hypfs/hypfs_diag.c
+++ b/arch/s390/hypfs/hypfs_diag.c
@@ -15,6 +15,7 @@
#include <linux/string.h>
#include <linux/vmalloc.h>
#include <linux/mm.h>
+#include <asm/diag.h>
#include <asm/ebcdic.h>
#include "hypfs.h"
@@ -336,7 +337,7 @@ static inline __u64 phys_cpu__ctidx(enum diag204_format type, void *hdr)
/* Diagnose 204 functions */
-static int diag204(unsigned long subcode, unsigned long size, void *addr)
+static inline int __diag204(unsigned long subcode, unsigned long size, void *addr)
{
register unsigned long _subcode asm("0") = subcode;
register unsigned long _size asm("1") = size;
@@ -351,6 +352,12 @@ static int diag204(unsigned long subcode, unsigned long size, void *addr)
return _size;
}
+static int diag204(unsigned long subcode, unsigned long size, void *addr)
+{
+ diag_stat_inc(DIAG_STAT_X204);
+ return __diag204(subcode, size, addr);
+}
+
/*
* For the old diag subcode 4 with simple data format we have to use real
* memory. If we use subcode 6 or 7 with extended data format, we can (and
@@ -505,6 +512,7 @@ static int diag224(void *ptr)
{
int rc = -EOPNOTSUPP;
+ diag_stat_inc(DIAG_STAT_X224);
asm volatile(
" diag %1,%2,0x224\n"
"0: lhi %0,0x0\n"
diff --git a/arch/s390/hypfs/hypfs_diag0c.c b/arch/s390/hypfs/hypfs_diag0c.c
index 24c747a0f..0f1927cbb 100644
--- a/arch/s390/hypfs/hypfs_diag0c.c
+++ b/arch/s390/hypfs/hypfs_diag0c.c
@@ -8,6 +8,7 @@
#include <linux/slab.h>
#include <linux/cpu.h>
+#include <asm/diag.h>
#include <asm/hypfs.h>
#include "hypfs.h"
@@ -18,6 +19,7 @@
*/
static void diag0c(struct hypfs_diag0c_entry *entry)
{
+ diag_stat_inc(DIAG_STAT_X00C);
asm volatile (
" sam31\n"
" diag %0,%0,0x0c\n"
diff --git a/arch/s390/hypfs/hypfs_sprp.c b/arch/s390/hypfs/hypfs_sprp.c
index dd42a26d0..c9e5c72f7 100644
--- a/arch/s390/hypfs/hypfs_sprp.c
+++ b/arch/s390/hypfs/hypfs_sprp.c
@@ -13,6 +13,7 @@
#include <linux/types.h>
#include <linux/uaccess.h>
#include <asm/compat.h>
+#include <asm/diag.h>
#include <asm/sclp.h>
#include "hypfs.h"
@@ -22,7 +23,7 @@
#define DIAG304_CMD_MAX 2
-static unsigned long hypfs_sprp_diag304(void *data, unsigned long cmd)
+static inline unsigned long __hypfs_sprp_diag304(void *data, unsigned long cmd)
{
register unsigned long _data asm("2") = (unsigned long) data;
register unsigned long _rc asm("3");
@@ -34,6 +35,12 @@ static unsigned long hypfs_sprp_diag304(void *data, unsigned long cmd)
return _rc;
}
+static unsigned long hypfs_sprp_diag304(void *data, unsigned long cmd)
+{
+ diag_stat_inc(DIAG_STAT_X304);
+ return __hypfs_sprp_diag304(data, cmd);
+}
+
static void hypfs_sprp_free(const void *data)
{
free_page((unsigned long) data);
diff --git a/arch/s390/hypfs/hypfs_vm.c b/arch/s390/hypfs/hypfs_vm.c
index afbe07907..44feac38c 100644
--- a/arch/s390/hypfs/hypfs_vm.c
+++ b/arch/s390/hypfs/hypfs_vm.c
@@ -9,6 +9,7 @@
#include <linux/errno.h>
#include <linux/string.h>
#include <linux/vmalloc.h>
+#include <asm/diag.h>
#include <asm/ebcdic.h>
#include <asm/timex.h>
#include "hypfs.h"
@@ -66,6 +67,7 @@ static int diag2fc(int size, char* query, void *addr)
memset(parm_list.aci_grp, 0x40, NAME_LEN);
rc = -1;
+ diag_stat_inc(DIAG_STAT_X2FC);
asm volatile(
" diag %0,%1,0x2fc\n"
"0:\n"
diff --git a/arch/s390/include/asm/appldata.h b/arch/s390/include/asm/appldata.h
index 16887c5fd..a6263d4e8 100644
--- a/arch/s390/include/asm/appldata.h
+++ b/arch/s390/include/asm/appldata.h
@@ -7,6 +7,7 @@
#ifndef _ASM_S390_APPLDATA_H
#define _ASM_S390_APPLDATA_H
+#include <asm/diag.h>
#include <asm/io.h>
#define APPLDATA_START_INTERVAL_REC 0x80
@@ -53,6 +54,7 @@ static inline int appldata_asm(struct appldata_product_id *id,
parm_list.buffer_length = length;
parm_list.product_id_addr = (unsigned long) id;
parm_list.buffer_addr = virt_to_phys(buffer);
+ diag_stat_inc(DIAG_STAT_X0DC);
asm volatile(
" diag %1,%0,0xdc"
: "=d" (ry)
diff --git a/arch/s390/include/asm/atomic.h b/arch/s390/include/asm/atomic.h
index 117fa5c92..911064aa5 100644
--- a/arch/s390/include/asm/atomic.h
+++ b/arch/s390/include/asm/atomic.h
@@ -36,7 +36,6 @@
\
typecheck(atomic_t *, ptr); \
asm volatile( \
- __barrier \
op_string " %0,%2,%1\n" \
__barrier \
: "=d" (old_val), "+Q" ((ptr)->counter) \
@@ -180,7 +179,6 @@ static inline int __atomic_add_unless(atomic_t *v, int a, int u)
\
typecheck(atomic64_t *, ptr); \
asm volatile( \
- __barrier \
op_string " %0,%2,%1\n" \
__barrier \
: "=d" (old_val), "+Q" ((ptr)->counter) \
diff --git a/arch/s390/include/asm/barrier.h b/arch/s390/include/asm/barrier.h
index d48fe0162..d68e11e0d 100644
--- a/arch/s390/include/asm/barrier.h
+++ b/arch/s390/include/asm/barrier.h
@@ -22,10 +22,10 @@
#define mb() do { asm volatile(__ASM_BARRIER : : : "memory"); } while (0)
-#define rmb() mb()
-#define wmb() mb()
-#define dma_rmb() rmb()
-#define dma_wmb() wmb()
+#define rmb() barrier()
+#define wmb() barrier()
+#define dma_rmb() mb()
+#define dma_wmb() mb()
#define smp_mb() mb()
#define smp_rmb() rmb()
#define smp_wmb() wmb()
diff --git a/arch/s390/include/asm/bitops.h b/arch/s390/include/asm/bitops.h
index 9b68e98a7..8043f10da 100644
--- a/arch/s390/include/asm/bitops.h
+++ b/arch/s390/include/asm/bitops.h
@@ -11,30 +11,25 @@
* big-endian system because, unlike little endian, the number of each
* bit depends on the word size.
*
- * The bitop functions are defined to work on unsigned longs, so for an
- * s390x system the bits end up numbered:
+ * The bitop functions are defined to work on unsigned longs, so the bits
+ * end up numbered:
* |63..............0|127............64|191...........128|255...........192|
- * and on s390:
- * |31.....0|63....32|95....64|127...96|159..128|191..160|223..192|255..224|
*
* There are a few little-endian macros used mostly for filesystem
- * bitmaps, these work on similar bit arrays layouts, but
- * byte-oriented:
+ * bitmaps, these work on similar bit array layouts, but byte-oriented:
* |7...0|15...8|23...16|31...24|39...32|47...40|55...48|63...56|
*
- * The main difference is that bit 3-5 (64b) or 3-4 (32b) in the bit
- * number field needs to be reversed compared to the big-endian bit
- * fields. This can be achieved by XOR with 0x38 (64b) or 0x18 (32b).
+ * The main difference is that bit 3-5 in the bit number field needs to be
+ * reversed compared to the big-endian bit fields. This can be achieved by
+ * XOR with 0x38.
*
- * We also have special functions which work with an MSB0 encoding:
- * on an s390x system the bits are numbered:
+ * We also have special functions which work with an MSB0 encoding.
+ * The bits are numbered:
* |0..............63|64............127|128...........191|192...........255|
- * and on s390:
- * |0.....31|32....63|64....95|96...127|128..159|160..191|192..223|224..255|
*
- * The main difference is that bit 0-63 (64b) or 0-31 (32b) in the bit
- * number field needs to be reversed compared to the LSB0 encoded bit
- * fields. This can be achieved by XOR with 0x3f (64b) or 0x1f (32b).
+ * The main difference is that bit 0-63 in the bit number field needs to be
+ * reversed compared to the LSB0 encoded bit fields. This can be achieved by
+ * XOR with 0x3f.
*
*/
@@ -64,7 +59,6 @@
\
typecheck(unsigned long *, (__addr)); \
asm volatile( \
- __barrier \
__op_string " %0,%2,%1\n" \
__barrier \
: "=d" (__old), "+Q" (*(__addr)) \
@@ -276,12 +270,32 @@ static inline int test_bit(unsigned long nr, const volatile unsigned long *ptr)
return (*addr >> (nr & 7)) & 1;
}
+static inline int test_and_set_bit_lock(unsigned long nr,
+ volatile unsigned long *ptr)
+{
+ if (test_bit(nr, ptr))
+ return 1;
+ return test_and_set_bit(nr, ptr);
+}
+
+static inline void clear_bit_unlock(unsigned long nr,
+ volatile unsigned long *ptr)
+{
+ smp_mb__before_atomic();
+ clear_bit(nr, ptr);
+}
+
+static inline void __clear_bit_unlock(unsigned long nr,
+ volatile unsigned long *ptr)
+{
+ smp_mb();
+ __clear_bit(nr, ptr);
+}
+
/*
* Functions which use MSB0 bit numbering.
- * On an s390x system the bits are numbered:
+ * The bits are numbered:
* |0..............63|64............127|128...........191|192...........255|
- * and on s390:
- * |0.....31|32....63|64....95|96...127|128..159|160..191|192..223|224..255|
*/
unsigned long find_first_bit_inv(const unsigned long *addr, unsigned long size);
unsigned long find_next_bit_inv(const unsigned long *addr, unsigned long size,
@@ -446,7 +460,6 @@ static inline int fls(int word)
#include <asm-generic/bitops/ffz.h>
#include <asm-generic/bitops/find.h>
#include <asm-generic/bitops/hweight.h>
-#include <asm-generic/bitops/lock.h>
#include <asm-generic/bitops/sched.h>
#include <asm-generic/bitops/le.h>
#include <asm-generic/bitops/ext2-atomic-setbit.h>
diff --git a/arch/s390/include/asm/cio.h b/arch/s390/include/asm/cio.h
index 096339207..d1e7b0a0f 100644
--- a/arch/s390/include/asm/cio.h
+++ b/arch/s390/include/asm/cio.h
@@ -5,6 +5,7 @@
#define _ASM_S390_CIO_H_
#include <linux/spinlock.h>
+#include <linux/bitops.h>
#include <asm/types.h>
#define LPM_ANYPATH 0xff
@@ -296,12 +297,22 @@ static inline int ccw_dev_id_is_equal(struct ccw_dev_id *dev_id1,
return 0;
}
+/**
+ * pathmask_to_pos() - find the position of the left-most bit in a pathmask
+ * @mask: pathmask with at least one bit set
+ */
+static inline u8 pathmask_to_pos(u8 mask)
+{
+ return 8 - ffs(mask);
+}
+
void channel_subsystem_reinit(void);
extern void css_schedule_reprobe(void);
extern void reipl_ccw_dev(struct ccw_dev_id *id);
struct cio_iplinfo {
+ u8 ssid;
u16 devno;
int is_qdio;
};
diff --git a/arch/s390/include/asm/cmb.h b/arch/s390/include/asm/cmb.h
index 806eac12e..ed2630c23 100644
--- a/arch/s390/include/asm/cmb.h
+++ b/arch/s390/include/asm/cmb.h
@@ -6,6 +6,7 @@
struct ccw_device;
extern int enable_cmf(struct ccw_device *cdev);
extern int disable_cmf(struct ccw_device *cdev);
+extern int __disable_cmf(struct ccw_device *cdev);
extern u64 cmf_read(struct ccw_device *cdev, int index);
extern int cmf_readall(struct ccw_device *cdev, struct cmbdata *data);
diff --git a/arch/s390/include/asm/cmpxchg.h b/arch/s390/include/asm/cmpxchg.h
index 411464f4c..24ea6948e 100644
--- a/arch/s390/include/asm/cmpxchg.h
+++ b/arch/s390/include/asm/cmpxchg.h
@@ -32,7 +32,7 @@
__old; \
})
-#define __cmpxchg_double_op(p1, p2, o1, o2, n1, n2, insn) \
+#define __cmpxchg_double(p1, p2, o1, o2, n1, n2) \
({ \
register __typeof__(*(p1)) __old1 asm("2") = (o1); \
register __typeof__(*(p2)) __old2 asm("3") = (o2); \
@@ -40,7 +40,7 @@
register __typeof__(*(p2)) __new2 asm("5") = (n2); \
int cc; \
asm volatile( \
- insn " %[old],%[new],%[ptr]\n" \
+ " cdsg %[old],%[new],%[ptr]\n" \
" ipm %[cc]\n" \
" srl %[cc],28" \
: [cc] "=d" (cc), [old] "+d" (__old1), "+d" (__old2) \
@@ -50,30 +50,6 @@
!cc; \
})
-#define __cmpxchg_double_4(p1, p2, o1, o2, n1, n2) \
- __cmpxchg_double_op(p1, p2, o1, o2, n1, n2, "cds")
-
-#define __cmpxchg_double_8(p1, p2, o1, o2, n1, n2) \
- __cmpxchg_double_op(p1, p2, o1, o2, n1, n2, "cdsg")
-
-extern void __cmpxchg_double_called_with_bad_pointer(void);
-
-#define __cmpxchg_double(p1, p2, o1, o2, n1, n2) \
-({ \
- int __ret; \
- switch (sizeof(*(p1))) { \
- case 4: \
- __ret = __cmpxchg_double_4(p1, p2, o1, o2, n1, n2); \
- break; \
- case 8: \
- __ret = __cmpxchg_double_8(p1, p2, o1, o2, n1, n2); \
- break; \
- default: \
- __cmpxchg_double_called_with_bad_pointer(); \
- } \
- __ret; \
-})
-
#define cmpxchg_double(p1, p2, o1, o2, n1, n2) \
({ \
__typeof__(p1) __p1 = (p1); \
@@ -81,7 +57,7 @@ extern void __cmpxchg_double_called_with_bad_pointer(void);
BUILD_BUG_ON(sizeof(*(p1)) != sizeof(long)); \
BUILD_BUG_ON(sizeof(*(p2)) != sizeof(long)); \
VM_BUG_ON((unsigned long)((__p1) + 1) != (unsigned long)(__p2));\
- __cmpxchg_double_8(__p1, __p2, o1, o2, n1, n2); \
+ __cmpxchg_double(__p1, __p2, o1, o2, n1, n2); \
})
#define system_has_cmpxchg_double() 1
diff --git a/arch/s390/include/asm/cpu_mf.h b/arch/s390/include/asm/cpu_mf.h
index 5243a8679..9dd04b9e9 100644
--- a/arch/s390/include/asm/cpu_mf.h
+++ b/arch/s390/include/asm/cpu_mf.h
@@ -22,15 +22,10 @@
#define CPU_MF_INT_SF_LSDA (1 << 22) /* loss of sample data alert */
#define CPU_MF_INT_CF_CACA (1 << 7) /* counter auth. change alert */
#define CPU_MF_INT_CF_LCDA (1 << 6) /* loss of counter data alert */
-#define CPU_MF_INT_RI_HALTED (1 << 5) /* run-time instr. halted */
-#define CPU_MF_INT_RI_BUF_FULL (1 << 4) /* run-time instr. program
- buffer full */
-
#define CPU_MF_INT_CF_MASK (CPU_MF_INT_CF_CACA|CPU_MF_INT_CF_LCDA)
#define CPU_MF_INT_SF_MASK (CPU_MF_INT_SF_IAE|CPU_MF_INT_SF_ISE| \
CPU_MF_INT_SF_PRA|CPU_MF_INT_SF_SACA| \
CPU_MF_INT_SF_LSDA)
-#define CPU_MF_INT_RI_MASK (CPU_MF_INT_RI_HALTED|CPU_MF_INT_RI_BUF_FULL)
/* CPU measurement facility support */
static inline int cpum_cf_avail(void)
diff --git a/arch/s390/include/asm/ctl_reg.h b/arch/s390/include/asm/ctl_reg.h
index 17a373576..d7697ab80 100644
--- a/arch/s390/include/asm/ctl_reg.h
+++ b/arch/s390/include/asm/ctl_reg.h
@@ -46,8 +46,6 @@ static inline void __ctl_clear_bit(unsigned int cr, unsigned int bit)
__ctl_load(reg, cr, cr);
}
-void __ctl_set_vx(void);
-
void smp_ctl_set_bit(int cr, int bit);
void smp_ctl_clear_bit(int cr, int bit);
diff --git a/arch/s390/include/asm/diag.h b/arch/s390/include/asm/diag.h
index 7e91c5807..5fac921c1 100644
--- a/arch/s390/include/asm/diag.h
+++ b/arch/s390/include/asm/diag.h
@@ -8,6 +8,34 @@
#ifndef _ASM_S390_DIAG_H
#define _ASM_S390_DIAG_H
+#include <linux/percpu.h>
+
+enum diag_stat_enum {
+ DIAG_STAT_X008,
+ DIAG_STAT_X00C,
+ DIAG_STAT_X010,
+ DIAG_STAT_X014,
+ DIAG_STAT_X044,
+ DIAG_STAT_X064,
+ DIAG_STAT_X09C,
+ DIAG_STAT_X0DC,
+ DIAG_STAT_X204,
+ DIAG_STAT_X210,
+ DIAG_STAT_X224,
+ DIAG_STAT_X250,
+ DIAG_STAT_X258,
+ DIAG_STAT_X288,
+ DIAG_STAT_X2C4,
+ DIAG_STAT_X2FC,
+ DIAG_STAT_X304,
+ DIAG_STAT_X308,
+ DIAG_STAT_X500,
+ NR_DIAG_STAT
+};
+
+void diag_stat_inc(enum diag_stat_enum nr);
+void diag_stat_inc_norecursion(enum diag_stat_enum nr);
+
/*
* Diagnose 10: Release page range
*/
@@ -18,6 +46,7 @@ static inline void diag10_range(unsigned long start_pfn, unsigned long num_pfn)
start_addr = start_pfn << PAGE_SHIFT;
end_addr = (start_pfn + num_pfn - 1) << PAGE_SHIFT;
+ diag_stat_inc(DIAG_STAT_X010);
asm volatile(
"0: diag %0,%1,0x10\n"
"1:\n"
diff --git a/arch/s390/include/asm/elf.h b/arch/s390/include/asm/elf.h
index 3ad48f22d..bab6739a1 100644
--- a/arch/s390/include/asm/elf.h
+++ b/arch/s390/include/asm/elf.h
@@ -206,9 +206,16 @@ do { \
} while (0)
#endif /* CONFIG_COMPAT */
-extern unsigned long mmap_rnd_mask;
-
-#define STACK_RND_MASK (test_thread_flag(TIF_31BIT) ? 0x7ff : mmap_rnd_mask)
+/*
+ * Cache aliasing on the latest machines calls for a mapping granularity
+ * of 512KB. For 64-bit processes use a 512KB alignment and a randomization
+ * of up to 1GB. For 31-bit processes the virtual address space is limited,
+ * use no alignment and limit the randomization to 8MB.
+ */
+#define BRK_RND_MASK (is_32bit_task() ? 0x7ffUL : 0x3ffffUL)
+#define MMAP_RND_MASK (is_32bit_task() ? 0x7ffUL : 0x3ff80UL)
+#define MMAP_ALIGN_MASK (is_32bit_task() ? 0 : 0x7fUL)
+#define STACK_RND_MASK MMAP_RND_MASK
#define ARCH_DLINFO \
do { \
diff --git a/arch/s390/include/asm/etr.h b/arch/s390/include/asm/etr.h
index f7e5c3668..105f90e63 100644
--- a/arch/s390/include/asm/etr.h
+++ b/arch/s390/include/asm/etr.h
@@ -211,8 +211,9 @@ static inline int etr_ptff(void *ptff_block, unsigned int func)
#define ETR_PTFF_SGS 0x43 /* set gross steering rate */
/* Functions needed by the machine check handler */
-void etr_switch_to_local(void);
-void etr_sync_check(void);
+int etr_switch_to_local(void);
+int etr_sync_check(void);
+void etr_queue_work(void);
/* notifier for syncs */
extern struct atomic_notifier_head s390_epoch_delta_notifier;
@@ -253,7 +254,8 @@ struct stp_sstpi {
} __attribute__ ((packed));
/* Functions needed by the machine check handler */
-void stp_sync_check(void);
-void stp_island_check(void);
+int stp_sync_check(void);
+int stp_island_check(void);
+void stp_queue_work(void);
#endif /* __S390_ETR_H */
diff --git a/arch/s390/include/asm/fpu/api.h b/arch/s390/include/asm/fpu/api.h
new file mode 100644
index 000000000..5e04f3cbd
--- /dev/null
+++ b/arch/s390/include/asm/fpu/api.h
@@ -0,0 +1,30 @@
+/*
+ * In-kernel FPU support functions
+ *
+ * Copyright IBM Corp. 2015
+ * Author(s): Hendrik Brueckner <brueckner@linux.vnet.ibm.com>
+ */
+
+#ifndef _ASM_S390_FPU_API_H
+#define _ASM_S390_FPU_API_H
+
+void save_fpu_regs(void);
+
+static inline int test_fp_ctl(u32 fpc)
+{
+ u32 orig_fpc;
+ int rc;
+
+ asm volatile(
+ " efpc %1\n"
+ " sfpc %2\n"
+ "0: sfpc %1\n"
+ " la %0,0\n"
+ "1:\n"
+ EX_TABLE(0b,1b)
+ : "=d" (rc), "=d" (orig_fpc)
+ : "d" (fpc), "0" (-EINVAL));
+ return rc;
+}
+
+#endif /* _ASM_S390_FPU_API_H */
diff --git a/arch/s390/include/asm/fpu-internal.h b/arch/s390/include/asm/fpu/internal.h
index 55dc2c0fb..2559b16da 100644
--- a/arch/s390/include/asm/fpu-internal.h
+++ b/arch/s390/include/asm/fpu/internal.h
@@ -1,5 +1,5 @@
/*
- * General floating pointer and vector register helpers
+ * FPU state and register content conversion primitives
*
* Copyright IBM Corp. 2015
* Author(s): Hendrik Brueckner <brueckner@linux.vnet.ibm.com>
@@ -8,50 +8,9 @@
#ifndef _ASM_S390_FPU_INTERNAL_H
#define _ASM_S390_FPU_INTERNAL_H
-#define FPU_USE_VX 1 /* Vector extension is active */
-
-#ifndef __ASSEMBLY__
-
-#include <linux/errno.h>
#include <linux/string.h>
-#include <asm/linkage.h>
#include <asm/ctl_reg.h>
-#include <asm/sigcontext.h>
-
-struct fpu {
- __u32 fpc; /* Floating-point control */
- __u32 flags;
- union {
- void *regs;
- freg_t *fprs; /* Floating-point register save area */
- __vector128 *vxrs; /* Vector register save area */
- };
-};
-
-void save_fpu_regs(void);
-
-#define is_vx_fpu(fpu) (!!((fpu)->flags & FPU_USE_VX))
-#define is_vx_task(tsk) (!!((tsk)->thread.fpu.flags & FPU_USE_VX))
-
-/* VX array structure for address operand constraints in inline assemblies */
-struct vx_array { __vector128 _[__NUM_VXRS]; };
-
-static inline int test_fp_ctl(u32 fpc)
-{
- u32 orig_fpc;
- int rc;
-
- asm volatile(
- " efpc %1\n"
- " sfpc %2\n"
- "0: sfpc %1\n"
- " la %0,0\n"
- "1:\n"
- EX_TABLE(0b,1b)
- : "=d" (rc), "=d" (orig_fpc)
- : "d" (fpc), "0" (-EINVAL));
- return rc;
-}
+#include <asm/fpu/types.h>
static inline void save_vx_regs_safe(__vector128 *vxrs)
{
@@ -89,7 +48,7 @@ static inline void convert_fp_to_vx(__vector128 *vxrs, freg_t *fprs)
static inline void fpregs_store(_s390_fp_regs *fpregs, struct fpu *fpu)
{
fpregs->pad = 0;
- if (is_vx_fpu(fpu))
+ if (MACHINE_HAS_VX)
convert_vx_to_fp((freg_t *)&fpregs->fprs, fpu->vxrs);
else
memcpy((freg_t *)&fpregs->fprs, fpu->fprs,
@@ -98,13 +57,11 @@ static inline void fpregs_store(_s390_fp_regs *fpregs, struct fpu *fpu)
static inline void fpregs_load(_s390_fp_regs *fpregs, struct fpu *fpu)
{
- if (is_vx_fpu(fpu))
+ if (MACHINE_HAS_VX)
convert_fp_to_vx(fpu->vxrs, (freg_t *)&fpregs->fprs);
else
memcpy(fpu->fprs, (freg_t *)&fpregs->fprs,
sizeof(fpregs->fprs));
}
-#endif
-
#endif /* _ASM_S390_FPU_INTERNAL_H */
diff --git a/arch/s390/include/asm/fpu/types.h b/arch/s390/include/asm/fpu/types.h
new file mode 100644
index 000000000..14a8b0c14
--- /dev/null
+++ b/arch/s390/include/asm/fpu/types.h
@@ -0,0 +1,25 @@
+/*
+ * FPU data structures
+ *
+ * Copyright IBM Corp. 2015
+ * Author(s): Hendrik Brueckner <brueckner@linux.vnet.ibm.com>
+ */
+
+#ifndef _ASM_S390_FPU_TYPES_H
+#define _ASM_S390_FPU_TYPES_H
+
+#include <asm/sigcontext.h>
+
+struct fpu {
+ __u32 fpc; /* Floating-point control */
+ union {
+ void *regs;
+ freg_t *fprs; /* Floating-point register save area */
+ __vector128 *vxrs; /* Vector register save area */
+ };
+};
+
+/* VX array structure for address operand constraints in inline assemblies */
+struct vx_array { __vector128 _[__NUM_VXRS]; };
+
+#endif /* _ASM_S390_FPU_TYPES_H */
diff --git a/arch/s390/include/asm/idle.h b/arch/s390/include/asm/idle.h
index 113cd963d..51ff96d9f 100644
--- a/arch/s390/include/asm/idle.h
+++ b/arch/s390/include/asm/idle.h
@@ -24,4 +24,6 @@ struct s390_idle_data {
extern struct device_attribute dev_attr_idle_count;
extern struct device_attribute dev_attr_idle_time_us;
+void psw_idle(struct s390_idle_data *, unsigned long);
+
#endif /* _S390_IDLE_H */
diff --git a/arch/s390/include/asm/ipl.h b/arch/s390/include/asm/ipl.h
index 39ae6a359..86634e71b 100644
--- a/arch/s390/include/asm/ipl.h
+++ b/arch/s390/include/asm/ipl.h
@@ -64,7 +64,8 @@ struct ipl_block_fcp {
struct ipl_block_ccw {
u8 reserved1[84];
- u8 reserved2[2];
+ u16 reserved2 : 13;
+ u8 ssid : 3;
u16 devno;
u8 vm_flags;
u8 reserved3[3];
diff --git a/arch/s390/include/asm/irq.h b/arch/s390/include/asm/irq.h
index ff95d15a2..f97b055de 100644
--- a/arch/s390/include/asm/irq.h
+++ b/arch/s390/include/asm/irq.h
@@ -47,7 +47,6 @@ enum interruption_class {
IRQEXT_IUC,
IRQEXT_CMS,
IRQEXT_CMC,
- IRQEXT_CMR,
IRQEXT_FTP,
IRQIO_CIO,
IRQIO_QAI,
@@ -96,6 +95,19 @@ enum irq_subclass {
IRQ_SUBCLASS_SERVICE_SIGNAL = 9,
};
+#define CR0_IRQ_SUBCLASS_MASK \
+ ((1UL << (63 - 30)) /* Warning Track */ | \
+ (1UL << (63 - 48)) /* Malfunction Alert */ | \
+ (1UL << (63 - 49)) /* Emergency Signal */ | \
+ (1UL << (63 - 50)) /* External Call */ | \
+ (1UL << (63 - 52)) /* Clock Comparator */ | \
+ (1UL << (63 - 53)) /* CPU Timer */ | \
+ (1UL << (63 - 54)) /* Service Signal */ | \
+ (1UL << (63 - 57)) /* Interrupt Key */ | \
+ (1UL << (63 - 58)) /* Measurement Alert */ | \
+ (1UL << (63 - 59)) /* Timing Alert */ | \
+ (1UL << (63 - 62))) /* IUCV */
+
void irq_subclass_register(enum irq_subclass subclass);
void irq_subclass_unregister(enum irq_subclass subclass);
diff --git a/arch/s390/include/asm/kvm_host.h b/arch/s390/include/asm/kvm_host.h
index 8ced42609..efaac2c3b 100644
--- a/arch/s390/include/asm/kvm_host.h
+++ b/arch/s390/include/asm/kvm_host.h
@@ -22,7 +22,7 @@
#include <linux/kvm.h>
#include <asm/debug.h>
#include <asm/cpu.h>
-#include <asm/fpu-internal.h>
+#include <asm/fpu/api.h>
#include <asm/isc.h>
#define KVM_MAX_VCPUS 64
@@ -644,5 +644,7 @@ static inline void kvm_arch_memslots_updated(struct kvm *kvm, struct kvm_memslot
static inline void kvm_arch_flush_shadow_all(struct kvm *kvm) {}
static inline void kvm_arch_flush_shadow_memslot(struct kvm *kvm,
struct kvm_memory_slot *slot) {}
+static inline void kvm_arch_vcpu_blocking(struct kvm_vcpu *vcpu) {}
+static inline void kvm_arch_vcpu_unblocking(struct kvm_vcpu *vcpu) {}
#endif
diff --git a/arch/s390/include/asm/kvm_para.h b/arch/s390/include/asm/kvm_para.h
index e0f842308..41393052a 100644
--- a/arch/s390/include/asm/kvm_para.h
+++ b/arch/s390/include/asm/kvm_para.h
@@ -27,10 +27,9 @@
#define __S390_KVM_PARA_H
#include <uapi/asm/kvm_para.h>
+#include <asm/diag.h>
-
-
-static inline long kvm_hypercall0(unsigned long nr)
+static inline long __kvm_hypercall0(unsigned long nr)
{
register unsigned long __nr asm("1") = nr;
register long __rc asm("2");
@@ -40,7 +39,13 @@ static inline long kvm_hypercall0(unsigned long nr)
return __rc;
}
-static inline long kvm_hypercall1(unsigned long nr, unsigned long p1)
+static inline long kvm_hypercall0(unsigned long nr)
+{
+ diag_stat_inc(DIAG_STAT_X500);
+ return __kvm_hypercall0(nr);
+}
+
+static inline long __kvm_hypercall1(unsigned long nr, unsigned long p1)
{
register unsigned long __nr asm("1") = nr;
register unsigned long __p1 asm("2") = p1;
@@ -51,7 +56,13 @@ static inline long kvm_hypercall1(unsigned long nr, unsigned long p1)
return __rc;
}
-static inline long kvm_hypercall2(unsigned long nr, unsigned long p1,
+static inline long kvm_hypercall1(unsigned long nr, unsigned long p1)
+{
+ diag_stat_inc(DIAG_STAT_X500);
+ return __kvm_hypercall1(nr, p1);
+}
+
+static inline long __kvm_hypercall2(unsigned long nr, unsigned long p1,
unsigned long p2)
{
register unsigned long __nr asm("1") = nr;
@@ -65,7 +76,14 @@ static inline long kvm_hypercall2(unsigned long nr, unsigned long p1,
return __rc;
}
-static inline long kvm_hypercall3(unsigned long nr, unsigned long p1,
+static inline long kvm_hypercall2(unsigned long nr, unsigned long p1,
+ unsigned long p2)
+{
+ diag_stat_inc(DIAG_STAT_X500);
+ return __kvm_hypercall2(nr, p1, p2);
+}
+
+static inline long __kvm_hypercall3(unsigned long nr, unsigned long p1,
unsigned long p2, unsigned long p3)
{
register unsigned long __nr asm("1") = nr;
@@ -80,8 +98,14 @@ static inline long kvm_hypercall3(unsigned long nr, unsigned long p1,
return __rc;
}
+static inline long kvm_hypercall3(unsigned long nr, unsigned long p1,
+ unsigned long p2, unsigned long p3)
+{
+ diag_stat_inc(DIAG_STAT_X500);
+ return __kvm_hypercall3(nr, p1, p2, p3);
+}
-static inline long kvm_hypercall4(unsigned long nr, unsigned long p1,
+static inline long __kvm_hypercall4(unsigned long nr, unsigned long p1,
unsigned long p2, unsigned long p3,
unsigned long p4)
{
@@ -98,7 +122,15 @@ static inline long kvm_hypercall4(unsigned long nr, unsigned long p1,
return __rc;
}
-static inline long kvm_hypercall5(unsigned long nr, unsigned long p1,
+static inline long kvm_hypercall4(unsigned long nr, unsigned long p1,
+ unsigned long p2, unsigned long p3,
+ unsigned long p4)
+{
+ diag_stat_inc(DIAG_STAT_X500);
+ return __kvm_hypercall4(nr, p1, p2, p3, p4);
+}
+
+static inline long __kvm_hypercall5(unsigned long nr, unsigned long p1,
unsigned long p2, unsigned long p3,
unsigned long p4, unsigned long p5)
{
@@ -116,7 +148,15 @@ static inline long kvm_hypercall5(unsigned long nr, unsigned long p1,
return __rc;
}
-static inline long kvm_hypercall6(unsigned long nr, unsigned long p1,
+static inline long kvm_hypercall5(unsigned long nr, unsigned long p1,
+ unsigned long p2, unsigned long p3,
+ unsigned long p4, unsigned long p5)
+{
+ diag_stat_inc(DIAG_STAT_X500);
+ return __kvm_hypercall5(nr, p1, p2, p3, p4, p5);
+}
+
+static inline long __kvm_hypercall6(unsigned long nr, unsigned long p1,
unsigned long p2, unsigned long p3,
unsigned long p4, unsigned long p5,
unsigned long p6)
@@ -137,6 +177,15 @@ static inline long kvm_hypercall6(unsigned long nr, unsigned long p1,
return __rc;
}
+static inline long kvm_hypercall6(unsigned long nr, unsigned long p1,
+ unsigned long p2, unsigned long p3,
+ unsigned long p4, unsigned long p5,
+ unsigned long p6)
+{
+ diag_stat_inc(DIAG_STAT_X500);
+ return __kvm_hypercall6(nr, p1, p2, p3, p4, p5, p6);
+}
+
/* kvm on s390 is always paravirtualization enabled */
static inline int kvm_para_available(void)
{
diff --git a/arch/s390/include/asm/lowcore.h b/arch/s390/include/asm/lowcore.h
index 663f23e37..afe1cfebf 100644
--- a/arch/s390/include/asm/lowcore.h
+++ b/arch/s390/include/asm/lowcore.h
@@ -67,7 +67,7 @@ struct _lowcore {
__u8 pad_0x00c4[0x00c8-0x00c4]; /* 0x00c4 */
__u32 stfl_fac_list; /* 0x00c8 */
__u8 pad_0x00cc[0x00e8-0x00cc]; /* 0x00cc */
- __u32 mcck_interruption_code[2]; /* 0x00e8 */
+ __u64 mcck_interruption_code; /* 0x00e8 */
__u8 pad_0x00f0[0x00f4-0x00f0]; /* 0x00f0 */
__u32 external_damage_code; /* 0x00f4 */
__u64 failing_storage_address; /* 0x00f8 */
@@ -132,7 +132,14 @@ struct _lowcore {
/* Address space pointer. */
__u64 kernel_asce; /* 0x0358 */
__u64 user_asce; /* 0x0360 */
- __u64 current_pid; /* 0x0368 */
+
+ /*
+ * The lpp and current_pid fields form a
+ * 64-bit value that is set as program
+ * parameter with the LPP instruction.
+ */
+ __u32 lpp; /* 0x0368 */
+ __u32 current_pid; /* 0x036c */
/* SMP info area */
__u32 cpu_nr; /* 0x0370 */
diff --git a/arch/s390/include/asm/nmi.h b/arch/s390/include/asm/nmi.h
index 3027a5a72..b75fd9103 100644
--- a/arch/s390/include/asm/nmi.h
+++ b/arch/s390/include/asm/nmi.h
@@ -11,51 +11,62 @@
#ifndef _ASM_S390_NMI_H
#define _ASM_S390_NMI_H
+#include <linux/const.h>
#include <linux/types.h>
-struct mci {
- __u32 sd : 1; /* 00 system damage */
- __u32 pd : 1; /* 01 instruction-processing damage */
- __u32 sr : 1; /* 02 system recovery */
- __u32 : 1; /* 03 */
- __u32 cd : 1; /* 04 timing-facility damage */
- __u32 ed : 1; /* 05 external damage */
- __u32 : 1; /* 06 */
- __u32 dg : 1; /* 07 degradation */
- __u32 w : 1; /* 08 warning pending */
- __u32 cp : 1; /* 09 channel-report pending */
- __u32 sp : 1; /* 10 service-processor damage */
- __u32 ck : 1; /* 11 channel-subsystem damage */
- __u32 : 2; /* 12-13 */
- __u32 b : 1; /* 14 backed up */
- __u32 : 1; /* 15 */
- __u32 se : 1; /* 16 storage error uncorrected */
- __u32 sc : 1; /* 17 storage error corrected */
- __u32 ke : 1; /* 18 storage-key error uncorrected */
- __u32 ds : 1; /* 19 storage degradation */
- __u32 wp : 1; /* 20 psw mwp validity */
- __u32 ms : 1; /* 21 psw mask and key validity */
- __u32 pm : 1; /* 22 psw program mask and cc validity */
- __u32 ia : 1; /* 23 psw instruction address validity */
- __u32 fa : 1; /* 24 failing storage address validity */
- __u32 vr : 1; /* 25 vector register validity */
- __u32 ec : 1; /* 26 external damage code validity */
- __u32 fp : 1; /* 27 floating point register validity */
- __u32 gr : 1; /* 28 general register validity */
- __u32 cr : 1; /* 29 control register validity */
- __u32 : 1; /* 30 */
- __u32 st : 1; /* 31 storage logical validity */
- __u32 ie : 1; /* 32 indirect storage error */
- __u32 ar : 1; /* 33 access register validity */
- __u32 da : 1; /* 34 delayed access exception */
- __u32 : 7; /* 35-41 */
- __u32 pr : 1; /* 42 tod programmable register validity */
- __u32 fc : 1; /* 43 fp control register validity */
- __u32 ap : 1; /* 44 ancillary report */
- __u32 : 1; /* 45 */
- __u32 ct : 1; /* 46 cpu timer validity */
- __u32 cc : 1; /* 47 clock comparator validity */
- __u32 : 16; /* 47-63 */
+#define MCCK_CODE_SYSTEM_DAMAGE _BITUL(63)
+#define MCCK_CODE_CPU_TIMER_VALID _BITUL(63 - 46)
+#define MCCK_CODE_PSW_MWP_VALID _BITUL(63 - 20)
+#define MCCK_CODE_PSW_IA_VALID _BITUL(63 - 23)
+
+#ifndef __ASSEMBLY__
+
+union mci {
+ unsigned long val;
+ struct {
+ u64 sd : 1; /* 00 system damage */
+ u64 pd : 1; /* 01 instruction-processing damage */
+ u64 sr : 1; /* 02 system recovery */
+ u64 : 1; /* 03 */
+ u64 cd : 1; /* 04 timing-facility damage */
+ u64 ed : 1; /* 05 external damage */
+ u64 : 1; /* 06 */
+ u64 dg : 1; /* 07 degradation */
+ u64 w : 1; /* 08 warning pending */
+ u64 cp : 1; /* 09 channel-report pending */
+ u64 sp : 1; /* 10 service-processor damage */
+ u64 ck : 1; /* 11 channel-subsystem damage */
+ u64 : 2; /* 12-13 */
+ u64 b : 1; /* 14 backed up */
+ u64 : 1; /* 15 */
+ u64 se : 1; /* 16 storage error uncorrected */
+ u64 sc : 1; /* 17 storage error corrected */
+ u64 ke : 1; /* 18 storage-key error uncorrected */
+ u64 ds : 1; /* 19 storage degradation */
+ u64 wp : 1; /* 20 psw mwp validity */
+ u64 ms : 1; /* 21 psw mask and key validity */
+ u64 pm : 1; /* 22 psw program mask and cc validity */
+ u64 ia : 1; /* 23 psw instruction address validity */
+ u64 fa : 1; /* 24 failing storage address validity */
+ u64 vr : 1; /* 25 vector register validity */
+ u64 ec : 1; /* 26 external damage code validity */
+ u64 fp : 1; /* 27 floating point register validity */
+ u64 gr : 1; /* 28 general register validity */
+ u64 cr : 1; /* 29 control register validity */
+ u64 : 1; /* 30 */
+ u64 st : 1; /* 31 storage logical validity */
+ u64 ie : 1; /* 32 indirect storage error */
+ u64 ar : 1; /* 33 access register validity */
+ u64 da : 1; /* 34 delayed access exception */
+ u64 : 7; /* 35-41 */
+ u64 pr : 1; /* 42 tod programmable register validity */
+ u64 fc : 1; /* 43 fp control register validity */
+ u64 ap : 1; /* 44 ancillary report */
+ u64 : 1; /* 45 */
+ u64 ct : 1; /* 46 cpu timer validity */
+ u64 cc : 1; /* 47 clock comparator validity */
+ u64 : 16; /* 47-63 */
+ };
};
struct pt_regs;
@@ -63,4 +74,5 @@ struct pt_regs;
extern void s390_handle_mcck(void);
extern void s390_do_machine_check(struct pt_regs *regs);
+#endif /* __ASSEMBLY__ */
#endif /* _ASM_S390_NMI_H */
diff --git a/arch/s390/include/asm/pci.h b/arch/s390/include/asm/pci.h
index 34d960353..c873e682b 100644
--- a/arch/s390/include/asm/pci.h
+++ b/arch/s390/include/asm/pci.h
@@ -62,6 +62,8 @@ struct zpci_bar_struct {
u8 size; /* order 2 exponent */
};
+struct s390_domain;
+
/* Private data per function */
struct zpci_dev {
struct pci_dev *pdev;
@@ -118,6 +120,8 @@ struct zpci_dev {
struct dentry *debugfs_dev;
struct dentry *debugfs_perf;
+
+ struct s390_domain *s390_domain; /* s390 IOMMU domain data */
};
static inline bool zdev_enabled(struct zpci_dev *zdev)
diff --git a/arch/s390/include/asm/pci_dma.h b/arch/s390/include/asm/pci_dma.h
index 30b4c179c..1aac41e83 100644
--- a/arch/s390/include/asm/pci_dma.h
+++ b/arch/s390/include/asm/pci_dma.h
@@ -192,5 +192,10 @@ static inline unsigned long *get_st_pto(unsigned long entry)
/* Prototypes */
int zpci_dma_init_device(struct zpci_dev *);
void zpci_dma_exit_device(struct zpci_dev *);
+void dma_free_seg_table(unsigned long);
+unsigned long *dma_alloc_cpu_table(void);
+void dma_cleanup_tables(unsigned long *);
+unsigned long *dma_walk_cpu_trans(unsigned long *rto, dma_addr_t dma_addr);
+void dma_update_cpu_trans(unsigned long *entry, void *page_addr, int flags);
#endif
diff --git a/arch/s390/include/asm/pgtable.h b/arch/s390/include/asm/pgtable.h
index bdb2f5112..024f85f94 100644
--- a/arch/s390/include/asm/pgtable.h
+++ b/arch/s390/include/asm/pgtable.h
@@ -193,9 +193,15 @@ static inline int is_module_addr(void *addr)
#define _PAGE_UNUSED 0x080 /* SW bit for pgste usage state */
#define __HAVE_ARCH_PTE_SPECIAL
+#ifdef CONFIG_MEM_SOFT_DIRTY
+#define _PAGE_SOFT_DIRTY 0x002 /* SW pte soft dirty bit */
+#else
+#define _PAGE_SOFT_DIRTY 0x000
+#endif
+
/* Set of bits not changed in pte_modify */
#define _PAGE_CHG_MASK (PAGE_MASK | _PAGE_SPECIAL | _PAGE_DIRTY | \
- _PAGE_YOUNG)
+ _PAGE_YOUNG | _PAGE_SOFT_DIRTY)
/*
* handle_pte_fault uses pte_present and pte_none to find out the pte type
@@ -285,6 +291,12 @@ static inline int is_module_addr(void *addr)
#define _SEGMENT_ENTRY_READ 0x0002 /* SW segment read bit */
#define _SEGMENT_ENTRY_WRITE 0x0001 /* SW segment write bit */
+#ifdef CONFIG_MEM_SOFT_DIRTY
+#define _SEGMENT_ENTRY_SOFT_DIRTY 0x4000 /* SW segment soft dirty bit */
+#else
+#define _SEGMENT_ENTRY_SOFT_DIRTY 0x0000 /* SW segment soft dirty bit */
+#endif
+
/*
* Segment table entry encoding (R = read-only, I = invalid, y = young bit):
* dy..R...I...wr
@@ -589,6 +601,43 @@ static inline int pmd_protnone(pmd_t pmd)
}
#endif
+static inline int pte_soft_dirty(pte_t pte)
+{
+ return pte_val(pte) & _PAGE_SOFT_DIRTY;
+}
+#define pte_swp_soft_dirty pte_soft_dirty
+
+static inline pte_t pte_mksoft_dirty(pte_t pte)
+{
+ pte_val(pte) |= _PAGE_SOFT_DIRTY;
+ return pte;
+}
+#define pte_swp_mksoft_dirty pte_mksoft_dirty
+
+static inline pte_t pte_clear_soft_dirty(pte_t pte)
+{
+ pte_val(pte) &= ~_PAGE_SOFT_DIRTY;
+ return pte;
+}
+#define pte_swp_clear_soft_dirty pte_clear_soft_dirty
+
+static inline int pmd_soft_dirty(pmd_t pmd)
+{
+ return pmd_val(pmd) & _SEGMENT_ENTRY_SOFT_DIRTY;
+}
+
+static inline pmd_t pmd_mksoft_dirty(pmd_t pmd)
+{
+ pmd_val(pmd) |= _SEGMENT_ENTRY_SOFT_DIRTY;
+ return pmd;
+}
+
+static inline pmd_t pmd_clear_soft_dirty(pmd_t pmd)
+{
+ pmd_val(pmd) &= ~_SEGMENT_ENTRY_SOFT_DIRTY;
+ return pmd;
+}
+
static inline pgste_t pgste_get_lock(pte_t *ptep)
{
unsigned long new = 0;
@@ -889,7 +938,7 @@ static inline pte_t pte_mkclean(pte_t pte)
static inline pte_t pte_mkdirty(pte_t pte)
{
- pte_val(pte) |= _PAGE_DIRTY;
+ pte_val(pte) |= _PAGE_DIRTY | _PAGE_SOFT_DIRTY;
if (pte_val(pte) & _PAGE_WRITE)
pte_val(pte) &= ~_PAGE_PROTECT;
return pte;
@@ -1218,8 +1267,10 @@ static inline int ptep_set_access_flags(struct vm_area_struct *vma,
pte_t entry, int dirty)
{
pgste_t pgste;
+ pte_t oldpte;
- if (pte_same(*ptep, entry))
+ oldpte = *ptep;
+ if (pte_same(oldpte, entry))
return 0;
if (mm_has_pgste(vma->vm_mm)) {
pgste = pgste_get_lock(ptep);
@@ -1229,7 +1280,8 @@ static inline int ptep_set_access_flags(struct vm_area_struct *vma,
ptep_flush_direct(vma->vm_mm, address, ptep);
if (mm_has_pgste(vma->vm_mm)) {
- pgste_set_key(ptep, pgste, entry, vma->vm_mm);
+ if (pte_val(oldpte) & _PAGE_INVALID)
+ pgste_set_key(ptep, pgste, entry, vma->vm_mm);
pgste = pgste_set_pte(ptep, pgste, entry);
pgste_set_unlock(ptep, pgste);
} else
@@ -1340,7 +1392,8 @@ static inline pmd_t pmd_mkclean(pmd_t pmd)
static inline pmd_t pmd_mkdirty(pmd_t pmd)
{
if (pmd_large(pmd)) {
- pmd_val(pmd) |= _SEGMENT_ENTRY_DIRTY;
+ pmd_val(pmd) |= _SEGMENT_ENTRY_DIRTY |
+ _SEGMENT_ENTRY_SOFT_DIRTY;
if (pmd_val(pmd) & _SEGMENT_ENTRY_WRITE)
pmd_val(pmd) &= ~_SEGMENT_ENTRY_PROTECT;
}
@@ -1371,7 +1424,8 @@ static inline pmd_t pmd_modify(pmd_t pmd, pgprot_t newprot)
if (pmd_large(pmd)) {
pmd_val(pmd) &= _SEGMENT_ENTRY_ORIGIN_LARGE |
_SEGMENT_ENTRY_DIRTY | _SEGMENT_ENTRY_YOUNG |
- _SEGMENT_ENTRY_LARGE | _SEGMENT_ENTRY_SPLIT;
+ _SEGMENT_ENTRY_LARGE | _SEGMENT_ENTRY_SPLIT |
+ _SEGMENT_ENTRY_SOFT_DIRTY;
pmd_val(pmd) |= massage_pgprot_pmd(newprot);
if (!(pmd_val(pmd) & _SEGMENT_ENTRY_DIRTY))
pmd_val(pmd) |= _SEGMENT_ENTRY_PROTECT;
diff --git a/arch/s390/include/asm/processor.h b/arch/s390/include/asm/processor.h
index 085fb0d3c..b16c3d0a1 100644
--- a/arch/s390/include/asm/processor.h
+++ b/arch/s390/include/asm/processor.h
@@ -11,15 +11,19 @@
#ifndef __ASM_S390_PROCESSOR_H
#define __ASM_S390_PROCESSOR_H
+#include <linux/const.h>
+
#define CIF_MCCK_PENDING 0 /* machine check handling is pending */
#define CIF_ASCE 1 /* user asce needs fixup / uaccess */
#define CIF_NOHZ_DELAY 2 /* delay HZ disable for a tick */
-#define CIF_FPU 3 /* restore vector registers */
+#define CIF_FPU 3 /* restore FPU registers */
+#define CIF_IGNORE_IRQ 4 /* ignore interrupt (for udelay) */
-#define _CIF_MCCK_PENDING (1<<CIF_MCCK_PENDING)
-#define _CIF_ASCE (1<<CIF_ASCE)
-#define _CIF_NOHZ_DELAY (1<<CIF_NOHZ_DELAY)
-#define _CIF_FPU (1<<CIF_FPU)
+#define _CIF_MCCK_PENDING _BITUL(CIF_MCCK_PENDING)
+#define _CIF_ASCE _BITUL(CIF_ASCE)
+#define _CIF_NOHZ_DELAY _BITUL(CIF_NOHZ_DELAY)
+#define _CIF_FPU _BITUL(CIF_FPU)
+#define _CIF_IGNORE_IRQ _BITUL(CIF_IGNORE_IRQ)
#ifndef __ASSEMBLY__
@@ -30,21 +34,22 @@
#include <asm/ptrace.h>
#include <asm/setup.h>
#include <asm/runtime_instr.h>
-#include <asm/fpu-internal.h>
+#include <asm/fpu/types.h>
+#include <asm/fpu/internal.h>
static inline void set_cpu_flag(int flag)
{
- S390_lowcore.cpu_flags |= (1U << flag);
+ S390_lowcore.cpu_flags |= (1UL << flag);
}
static inline void clear_cpu_flag(int flag)
{
- S390_lowcore.cpu_flags &= ~(1U << flag);
+ S390_lowcore.cpu_flags &= ~(1UL << flag);
}
static inline int test_cpu_flag(int flag)
{
- return !!(S390_lowcore.cpu_flags & (1U << flag));
+ return !!(S390_lowcore.cpu_flags & (1UL << flag));
}
#define arch_needs_cpu() test_cpu_flag(CIF_NOHZ_DELAY)
@@ -102,7 +107,6 @@ struct thread_struct {
struct list_head list;
/* cpu runtime instrumentation */
struct runtime_instr_cb *ri_cb;
- int ri_signum;
unsigned char trap_tdb[256]; /* Transaction abort diagnose block */
};
@@ -139,8 +143,10 @@ struct stack_frame {
#define ARCH_MIN_TASKALIGN 8
+extern __vector128 init_task_fpu_regs[__NUM_VXRS];
#define INIT_THREAD { \
.ksp = sizeof(init_stack) + (unsigned long) &init_stack, \
+ .fpu.regs = (void *)&init_task_fpu_regs, \
}
/*
@@ -217,7 +223,7 @@ static inline void __load_psw(psw_t psw)
* Set PSW mask to specified value, while leaving the
* PSW addr pointing to the next instruction.
*/
-static inline void __load_psw_mask (unsigned long mask)
+static inline void __load_psw_mask(unsigned long mask)
{
unsigned long addr;
psw_t psw;
@@ -243,6 +249,16 @@ static inline unsigned long __extract_psw(void)
return (((unsigned long) reg1) << 32) | ((unsigned long) reg2);
}
+static inline void local_mcck_enable(void)
+{
+ __load_psw_mask(__extract_psw() | PSW_MASK_MCHECK);
+}
+
+static inline void local_mcck_disable(void)
+{
+ __load_psw_mask(__extract_psw() & ~PSW_MASK_MCHECK);
+}
+
/*
* Rewind PSW instruction address by specified number of bytes.
*/
@@ -266,65 +282,14 @@ void enabled_wait(void);
*/
static inline void __noreturn disabled_wait(unsigned long code)
{
- unsigned long ctl_buf;
- psw_t dw_psw;
-
- dw_psw.mask = PSW_MASK_BASE | PSW_MASK_WAIT | PSW_MASK_BA | PSW_MASK_EA;
- dw_psw.addr = code;
- /*
- * Store status and then load disabled wait psw,
- * the processor is dead afterwards
- */
- asm volatile(
- " stctg 0,0,0(%2)\n"
- " ni 4(%2),0xef\n" /* switch off protection */
- " lctlg 0,0,0(%2)\n"
- " lghi 1,0x1000\n"
- " stpt 0x328(1)\n" /* store timer */
- " stckc 0x330(1)\n" /* store clock comparator */
- " stpx 0x318(1)\n" /* store prefix register */
- " stam 0,15,0x340(1)\n"/* store access registers */
- " stfpc 0x31c(1)\n" /* store fpu control */
- " std 0,0x200(1)\n" /* store f0 */
- " std 1,0x208(1)\n" /* store f1 */
- " std 2,0x210(1)\n" /* store f2 */
- " std 3,0x218(1)\n" /* store f3 */
- " std 4,0x220(1)\n" /* store f4 */
- " std 5,0x228(1)\n" /* store f5 */
- " std 6,0x230(1)\n" /* store f6 */
- " std 7,0x238(1)\n" /* store f7 */
- " std 8,0x240(1)\n" /* store f8 */
- " std 9,0x248(1)\n" /* store f9 */
- " std 10,0x250(1)\n" /* store f10 */
- " std 11,0x258(1)\n" /* store f11 */
- " std 12,0x260(1)\n" /* store f12 */
- " std 13,0x268(1)\n" /* store f13 */
- " std 14,0x270(1)\n" /* store f14 */
- " std 15,0x278(1)\n" /* store f15 */
- " stmg 0,15,0x280(1)\n"/* store general registers */
- " stctg 0,15,0x380(1)\n"/* store control registers */
- " oi 0x384(1),0x10\n"/* fake protection bit */
- " lpswe 0(%1)"
- : "=m" (ctl_buf)
- : "a" (&dw_psw), "a" (&ctl_buf), "m" (dw_psw) : "cc", "0", "1");
- while (1);
-}
+ psw_t psw;
-/*
- * Use to set psw mask except for the first byte which
- * won't be changed by this function.
- */
-static inline void
-__set_psw_mask(unsigned long mask)
-{
- __load_psw_mask(mask | (arch_local_save_flags() & ~(-1UL >> 8)));
+ psw.mask = PSW_MASK_BASE | PSW_MASK_WAIT | PSW_MASK_BA | PSW_MASK_EA;
+ psw.addr = code;
+ __load_psw(psw);
+ while (1);
}
-#define local_mcck_enable() \
- __set_psw_mask(PSW_KERNEL_BITS | PSW_MASK_DAT | PSW_MASK_MCHECK)
-#define local_mcck_disable() \
- __set_psw_mask(PSW_KERNEL_BITS | PSW_MASK_DAT)
-
/*
* Basic Machine Check/Program Check Handler.
*/
diff --git a/arch/s390/include/asm/ptrace.h b/arch/s390/include/asm/ptrace.h
index 6feda2599..37cbc5094 100644
--- a/arch/s390/include/asm/ptrace.h
+++ b/arch/s390/include/asm/ptrace.h
@@ -6,13 +6,14 @@
#ifndef _S390_PTRACE_H
#define _S390_PTRACE_H
+#include <linux/const.h>
#include <uapi/asm/ptrace.h>
#define PIF_SYSCALL 0 /* inside a system call */
#define PIF_PER_TRAP 1 /* deliver sigtrap on return to user */
-#define _PIF_SYSCALL (1<<PIF_SYSCALL)
-#define _PIF_PER_TRAP (1<<PIF_PER_TRAP)
+#define _PIF_SYSCALL _BITUL(PIF_SYSCALL)
+#define _PIF_PER_TRAP _BITUL(PIF_PER_TRAP)
#ifndef __ASSEMBLY__
@@ -128,17 +129,17 @@ struct per_struct_kernel {
static inline void set_pt_regs_flag(struct pt_regs *regs, int flag)
{
- regs->flags |= (1U << flag);
+ regs->flags |= (1UL << flag);
}
static inline void clear_pt_regs_flag(struct pt_regs *regs, int flag)
{
- regs->flags &= ~(1U << flag);
+ regs->flags &= ~(1UL << flag);
}
static inline int test_pt_regs_flag(struct pt_regs *regs, int flag)
{
- return !!(regs->flags & (1U << flag));
+ return !!(regs->flags & (1UL << flag));
}
/*
diff --git a/arch/s390/include/asm/setup.h b/arch/s390/include/asm/setup.h
index b8ffc1bd0..23537661d 100644
--- a/arch/s390/include/asm/setup.h
+++ b/arch/s390/include/asm/setup.h
@@ -5,11 +5,38 @@
#ifndef _ASM_S390_SETUP_H
#define _ASM_S390_SETUP_H
+#include <linux/const.h>
#include <uapi/asm/setup.h>
#define PARMAREA 0x10400
+/*
+ * Machine features detected in head.S
+ */
+
+#define MACHINE_FLAG_VM _BITUL(0)
+#define MACHINE_FLAG_IEEE _BITUL(1)
+#define MACHINE_FLAG_CSP _BITUL(2)
+#define MACHINE_FLAG_MVPG _BITUL(3)
+#define MACHINE_FLAG_DIAG44 _BITUL(4)
+#define MACHINE_FLAG_IDTE _BITUL(5)
+#define MACHINE_FLAG_DIAG9C _BITUL(6)
+#define MACHINE_FLAG_KVM _BITUL(8)
+#define MACHINE_FLAG_ESOP _BITUL(9)
+#define MACHINE_FLAG_EDAT1 _BITUL(10)
+#define MACHINE_FLAG_EDAT2 _BITUL(11)
+#define MACHINE_FLAG_LPAR _BITUL(12)
+#define MACHINE_FLAG_LPP _BITUL(13)
+#define MACHINE_FLAG_TOPOLOGY _BITUL(14)
+#define MACHINE_FLAG_TE _BITUL(15)
+#define MACHINE_FLAG_TLB_LC _BITUL(17)
+#define MACHINE_FLAG_VX _BITUL(18)
+#define MACHINE_FLAG_CAD _BITUL(19)
+
+#define LPP_MAGIC _BITUL(31)
+#define LPP_PFAULT_PID_MASK _AC(0xffffffff, UL)
+
#ifndef __ASSEMBLY__
#include <asm/lowcore.h>
@@ -28,29 +55,6 @@ extern unsigned long max_physmem_end;
extern void detect_memory_memblock(void);
-/*
- * Machine features detected in head.S
- */
-
-#define MACHINE_FLAG_VM (1UL << 0)
-#define MACHINE_FLAG_IEEE (1UL << 1)
-#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_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_LPP (1UL << 13)
-#define MACHINE_FLAG_TOPOLOGY (1UL << 14)
-#define MACHINE_FLAG_TE (1UL << 15)
-#define MACHINE_FLAG_TLB_LC (1UL << 17)
-#define MACHINE_FLAG_VX (1UL << 18)
-#define MACHINE_FLAG_CAD (1UL << 19)
-
#define MACHINE_IS_VM (S390_lowcore.machine_flags & MACHINE_FLAG_VM)
#define MACHINE_IS_KVM (S390_lowcore.machine_flags & MACHINE_FLAG_KVM)
#define MACHINE_IS_LPAR (S390_lowcore.machine_flags & MACHINE_FLAG_LPAR)
diff --git a/arch/s390/include/asm/spinlock.h b/arch/s390/include/asm/spinlock.h
index 0e37cd041..63ebf37d3 100644
--- a/arch/s390/include/asm/spinlock.h
+++ b/arch/s390/include/asm/spinlock.h
@@ -87,7 +87,6 @@ static inline void arch_spin_unlock(arch_spinlock_t *lp)
{
typecheck(unsigned int, lp->lock);
asm volatile(
- __ASM_BARRIER
"st %1,%0\n"
: "+Q" (lp->lock)
: "d" (0)
@@ -169,7 +168,6 @@ static inline int arch_write_trylock_once(arch_rwlock_t *rw)
\
typecheck(unsigned int *, ptr); \
asm volatile( \
- "bcr 14,0\n" \
op_string " %0,%2,%1\n" \
: "=d" (old_val), "+Q" (*ptr) \
: "d" (op_val) \
@@ -243,7 +241,6 @@ static inline void arch_write_unlock(arch_rwlock_t *rw)
rw->owner = 0;
asm volatile(
- __ASM_BARRIER
"st %1,%0\n"
: "+Q" (rw->lock)
: "d" (0)
diff --git a/arch/s390/include/asm/switch_to.h b/arch/s390/include/asm/switch_to.h
index dcadfde32..12d45f0cf 100644
--- a/arch/s390/include/asm/switch_to.h
+++ b/arch/s390/include/asm/switch_to.h
@@ -8,7 +8,7 @@
#define __ASM_SWITCH_TO_H
#include <linux/thread_info.h>
-#include <asm/fpu-internal.h>
+#include <asm/fpu/api.h>
#include <asm/ptrace.h>
extern struct task_struct *__switch_to(void *, void *);
diff --git a/arch/s390/include/asm/thread_info.h b/arch/s390/include/asm/thread_info.h
index 4c27ec764..692b9247c 100644
--- a/arch/s390/include/asm/thread_info.h
+++ b/arch/s390/include/asm/thread_info.h
@@ -7,6 +7,8 @@
#ifndef _ASM_THREAD_INFO_H
#define _ASM_THREAD_INFO_H
+#include <linux/const.h>
+
/*
* Size of kernel stack for each process
*/
@@ -83,16 +85,16 @@ void arch_release_task_struct(struct task_struct *tsk);
#define TIF_BLOCK_STEP 20 /* This task is block stepped */
#define TIF_UPROBE_SINGLESTEP 21 /* This task is uprobe single stepped */
-#define _TIF_NOTIFY_RESUME (1<<TIF_NOTIFY_RESUME)
-#define _TIF_SIGPENDING (1<<TIF_SIGPENDING)
-#define _TIF_NEED_RESCHED (1<<TIF_NEED_RESCHED)
-#define _TIF_SYSCALL_TRACE (1<<TIF_SYSCALL_TRACE)
-#define _TIF_SYSCALL_AUDIT (1<<TIF_SYSCALL_AUDIT)
-#define _TIF_SECCOMP (1<<TIF_SECCOMP)
-#define _TIF_SYSCALL_TRACEPOINT (1<<TIF_SYSCALL_TRACEPOINT)
-#define _TIF_UPROBE (1<<TIF_UPROBE)
-#define _TIF_31BIT (1<<TIF_31BIT)
-#define _TIF_SINGLE_STEP (1<<TIF_SINGLE_STEP)
+#define _TIF_NOTIFY_RESUME _BITUL(TIF_NOTIFY_RESUME)
+#define _TIF_SIGPENDING _BITUL(TIF_SIGPENDING)
+#define _TIF_NEED_RESCHED _BITUL(TIF_NEED_RESCHED)
+#define _TIF_SYSCALL_TRACE _BITUL(TIF_SYSCALL_TRACE)
+#define _TIF_SYSCALL_AUDIT _BITUL(TIF_SYSCALL_AUDIT)
+#define _TIF_SECCOMP _BITUL(TIF_SECCOMP)
+#define _TIF_SYSCALL_TRACEPOINT _BITUL(TIF_SYSCALL_TRACEPOINT)
+#define _TIF_UPROBE _BITUL(TIF_UPROBE)
+#define _TIF_31BIT _BITUL(TIF_31BIT)
+#define _TIF_SINGLE_STEP _BITUL(TIF_SINGLE_STEP)
#define is_32bit_task() (test_thread_flag(TIF_31BIT))
diff --git a/arch/s390/include/asm/trace/diag.h b/arch/s390/include/asm/trace/diag.h
new file mode 100644
index 000000000..cc6cfe788
--- /dev/null
+++ b/arch/s390/include/asm/trace/diag.h
@@ -0,0 +1,43 @@
+/*
+ * Tracepoint header for s390 diagnose calls
+ *
+ * Copyright IBM Corp. 2015
+ * Author(s): Martin Schwidefsky <schwidefsky@de.ibm.com>
+ */
+
+#undef TRACE_SYSTEM
+#define TRACE_SYSTEM s390
+
+#if !defined(_TRACE_S390_DIAG_H) || defined(TRACE_HEADER_MULTI_READ)
+#define _TRACE_S390_DIAG_H
+
+#include <linux/tracepoint.h>
+
+#undef TRACE_INCLUDE_PATH
+#undef TRACE_INCLUDE_FILE
+
+#define TRACE_INCLUDE_PATH asm/trace
+#define TRACE_INCLUDE_FILE diag
+
+TRACE_EVENT(s390_diagnose,
+ TP_PROTO(unsigned short nr),
+ TP_ARGS(nr),
+ TP_STRUCT__entry(
+ __field(unsigned short, nr)
+ ),
+ TP_fast_assign(
+ __entry->nr = nr;
+ ),
+ TP_printk("nr=0x%x", __entry->nr)
+);
+
+#ifdef CONFIG_TRACEPOINTS
+void trace_s390_diagnose_norecursion(int diag_nr);
+#else
+static inline void trace_s390_diagnose_norecursion(int diag_nr) { }
+#endif
+
+#endif /* _TRACE_S390_DIAG_H */
+
+/* This part must be outside protection */
+#include <trace/define_trace.h>
diff --git a/arch/s390/include/uapi/asm/unistd.h b/arch/s390/include/uapi/asm/unistd.h
index a848adba1..34ec20247 100644
--- a/arch/s390/include/uapi/asm/unistd.h
+++ b/arch/s390/include/uapi/asm/unistd.h
@@ -192,14 +192,14 @@
#define __NR_set_tid_address 252
#define __NR_fadvise64 253
#define __NR_timer_create 254
-#define __NR_timer_settime (__NR_timer_create+1)
-#define __NR_timer_gettime (__NR_timer_create+2)
-#define __NR_timer_getoverrun (__NR_timer_create+3)
-#define __NR_timer_delete (__NR_timer_create+4)
-#define __NR_clock_settime (__NR_timer_create+5)
-#define __NR_clock_gettime (__NR_timer_create+6)
-#define __NR_clock_getres (__NR_timer_create+7)
-#define __NR_clock_nanosleep (__NR_timer_create+8)
+#define __NR_timer_settime 255
+#define __NR_timer_gettime 256
+#define __NR_timer_getoverrun 257
+#define __NR_timer_delete 258
+#define __NR_clock_settime 259
+#define __NR_clock_gettime 260
+#define __NR_clock_getres 261
+#define __NR_clock_nanosleep 262
/* Number 263 is reserved for vserver */
#define __NR_statfs64 265
#define __NR_fstatfs64 266
@@ -309,7 +309,8 @@
#define __NR_recvfrom 371
#define __NR_recvmsg 372
#define __NR_shutdown 373
-#define NR_syscalls 374
+#define __NR_mlock2 374
+#define NR_syscalls 375
/*
* There are some system calls that are not present on 64 bit, some
diff --git a/arch/s390/kernel/Makefile b/arch/s390/kernel/Makefile
index b756c6348..dc167a23b 100644
--- a/arch/s390/kernel/Makefile
+++ b/arch/s390/kernel/Makefile
@@ -66,6 +66,8 @@ obj-$(CONFIG_UPROBES) += uprobes.o
obj-$(CONFIG_PERF_EVENTS) += perf_event.o perf_cpum_cf.o perf_cpum_sf.o
obj-$(CONFIG_PERF_EVENTS) += perf_cpum_cf_events.o
+obj-$(CONFIG_TRACEPOINTS) += trace.o
+
# vdso
obj-y += vdso64/
obj-$(CONFIG_COMPAT) += vdso32/
diff --git a/arch/s390/kernel/asm-offsets.c b/arch/s390/kernel/asm-offsets.c
index 3aeeb1b56..9cd248f63 100644
--- a/arch/s390/kernel/asm-offsets.c
+++ b/arch/s390/kernel/asm-offsets.c
@@ -23,59 +23,64 @@
int main(void)
{
- DEFINE(__TASK_thread_info, offsetof(struct task_struct, stack));
- DEFINE(__TASK_thread, offsetof(struct task_struct, thread));
- DEFINE(__TASK_pid, offsetof(struct task_struct, pid));
+ /* task struct offsets */
+ OFFSET(__TASK_thread_info, task_struct, stack);
+ OFFSET(__TASK_thread, task_struct, thread);
+ OFFSET(__TASK_pid, task_struct, pid);
BLANK();
- DEFINE(__THREAD_ksp, offsetof(struct thread_struct, ksp));
- DEFINE(__THREAD_FPU_fpc, offsetof(struct thread_struct, fpu.fpc));
- DEFINE(__THREAD_FPU_flags, offsetof(struct thread_struct, fpu.flags));
- DEFINE(__THREAD_FPU_regs, offsetof(struct thread_struct, fpu.regs));
- DEFINE(__THREAD_per_cause, offsetof(struct thread_struct, per_event.cause));
- DEFINE(__THREAD_per_address, offsetof(struct thread_struct, per_event.address));
- DEFINE(__THREAD_per_paid, offsetof(struct thread_struct, per_event.paid));
- DEFINE(__THREAD_trap_tdb, offsetof(struct thread_struct, trap_tdb));
+ /* thread struct offsets */
+ OFFSET(__THREAD_ksp, thread_struct, ksp);
+ OFFSET(__THREAD_FPU_fpc, thread_struct, fpu.fpc);
+ OFFSET(__THREAD_FPU_regs, thread_struct, fpu.regs);
+ OFFSET(__THREAD_per_cause, thread_struct, per_event.cause);
+ OFFSET(__THREAD_per_address, thread_struct, per_event.address);
+ OFFSET(__THREAD_per_paid, thread_struct, per_event.paid);
+ OFFSET(__THREAD_trap_tdb, thread_struct, trap_tdb);
BLANK();
- DEFINE(__TI_task, offsetof(struct thread_info, task));
- DEFINE(__TI_flags, offsetof(struct thread_info, flags));
- DEFINE(__TI_sysc_table, offsetof(struct thread_info, sys_call_table));
- DEFINE(__TI_cpu, offsetof(struct thread_info, cpu));
- DEFINE(__TI_precount, offsetof(struct thread_info, preempt_count));
- DEFINE(__TI_user_timer, offsetof(struct thread_info, user_timer));
- DEFINE(__TI_system_timer, offsetof(struct thread_info, system_timer));
- DEFINE(__TI_last_break, offsetof(struct thread_info, last_break));
+ /* thread info offsets */
+ OFFSET(__TI_task, thread_info, task);
+ OFFSET(__TI_flags, thread_info, flags);
+ OFFSET(__TI_sysc_table, thread_info, sys_call_table);
+ OFFSET(__TI_cpu, thread_info, cpu);
+ OFFSET(__TI_precount, thread_info, preempt_count);
+ OFFSET(__TI_user_timer, thread_info, user_timer);
+ OFFSET(__TI_system_timer, thread_info, system_timer);
+ OFFSET(__TI_last_break, thread_info, last_break);
BLANK();
- DEFINE(__PT_ARGS, offsetof(struct pt_regs, args));
- DEFINE(__PT_PSW, offsetof(struct pt_regs, psw));
- DEFINE(__PT_GPRS, offsetof(struct pt_regs, gprs));
- DEFINE(__PT_ORIG_GPR2, offsetof(struct pt_regs, orig_gpr2));
- DEFINE(__PT_INT_CODE, offsetof(struct pt_regs, int_code));
- DEFINE(__PT_INT_PARM, offsetof(struct pt_regs, int_parm));
- DEFINE(__PT_INT_PARM_LONG, offsetof(struct pt_regs, int_parm_long));
- DEFINE(__PT_FLAGS, offsetof(struct pt_regs, flags));
+ /* pt_regs offsets */
+ OFFSET(__PT_ARGS, pt_regs, args);
+ OFFSET(__PT_PSW, pt_regs, psw);
+ OFFSET(__PT_GPRS, pt_regs, gprs);
+ OFFSET(__PT_ORIG_GPR2, pt_regs, orig_gpr2);
+ OFFSET(__PT_INT_CODE, pt_regs, int_code);
+ OFFSET(__PT_INT_PARM, pt_regs, int_parm);
+ OFFSET(__PT_INT_PARM_LONG, pt_regs, int_parm_long);
+ OFFSET(__PT_FLAGS, pt_regs, flags);
DEFINE(__PT_SIZE, sizeof(struct pt_regs));
BLANK();
- DEFINE(__SF_BACKCHAIN, offsetof(struct stack_frame, back_chain));
- DEFINE(__SF_GPRS, offsetof(struct stack_frame, gprs));
- DEFINE(__SF_EMPTY, offsetof(struct stack_frame, empty1));
+ /* stack_frame offsets */
+ OFFSET(__SF_BACKCHAIN, stack_frame, back_chain);
+ OFFSET(__SF_GPRS, stack_frame, gprs);
+ OFFSET(__SF_EMPTY, stack_frame, empty1);
BLANK();
/* timeval/timezone offsets for use by vdso */
- DEFINE(__VDSO_UPD_COUNT, offsetof(struct vdso_data, tb_update_count));
- DEFINE(__VDSO_XTIME_STAMP, offsetof(struct vdso_data, xtime_tod_stamp));
- DEFINE(__VDSO_XTIME_SEC, offsetof(struct vdso_data, xtime_clock_sec));
- DEFINE(__VDSO_XTIME_NSEC, offsetof(struct vdso_data, xtime_clock_nsec));
- DEFINE(__VDSO_XTIME_CRS_SEC, offsetof(struct vdso_data, xtime_coarse_sec));
- DEFINE(__VDSO_XTIME_CRS_NSEC, offsetof(struct vdso_data, xtime_coarse_nsec));
- DEFINE(__VDSO_WTOM_SEC, offsetof(struct vdso_data, wtom_clock_sec));
- DEFINE(__VDSO_WTOM_NSEC, offsetof(struct vdso_data, wtom_clock_nsec));
- DEFINE(__VDSO_WTOM_CRS_SEC, offsetof(struct vdso_data, wtom_coarse_sec));
- DEFINE(__VDSO_WTOM_CRS_NSEC, offsetof(struct vdso_data, wtom_coarse_nsec));
- DEFINE(__VDSO_TIMEZONE, offsetof(struct vdso_data, tz_minuteswest));
- DEFINE(__VDSO_ECTG_OK, offsetof(struct vdso_data, ectg_available));
- DEFINE(__VDSO_TK_MULT, offsetof(struct vdso_data, tk_mult));
- DEFINE(__VDSO_TK_SHIFT, offsetof(struct vdso_data, tk_shift));
- DEFINE(__VDSO_ECTG_BASE, offsetof(struct vdso_per_cpu_data, ectg_timer_base));
- DEFINE(__VDSO_ECTG_USER, offsetof(struct vdso_per_cpu_data, ectg_user_time));
+ OFFSET(__VDSO_UPD_COUNT, vdso_data, tb_update_count);
+ OFFSET(__VDSO_XTIME_STAMP, vdso_data, xtime_tod_stamp);
+ OFFSET(__VDSO_XTIME_SEC, vdso_data, xtime_clock_sec);
+ OFFSET(__VDSO_XTIME_NSEC, vdso_data, xtime_clock_nsec);
+ OFFSET(__VDSO_XTIME_CRS_SEC, vdso_data, xtime_coarse_sec);
+ OFFSET(__VDSO_XTIME_CRS_NSEC, vdso_data, xtime_coarse_nsec);
+ OFFSET(__VDSO_WTOM_SEC, vdso_data, wtom_clock_sec);
+ OFFSET(__VDSO_WTOM_NSEC, vdso_data, wtom_clock_nsec);
+ OFFSET(__VDSO_WTOM_CRS_SEC, vdso_data, wtom_coarse_sec);
+ OFFSET(__VDSO_WTOM_CRS_NSEC, vdso_data, wtom_coarse_nsec);
+ OFFSET(__VDSO_TIMEZONE, vdso_data, tz_minuteswest);
+ OFFSET(__VDSO_ECTG_OK, vdso_data, ectg_available);
+ OFFSET(__VDSO_TK_MULT, vdso_data, tk_mult);
+ OFFSET(__VDSO_TK_SHIFT, vdso_data, tk_shift);
+ OFFSET(__VDSO_ECTG_BASE, vdso_per_cpu_data, ectg_timer_base);
+ OFFSET(__VDSO_ECTG_USER, vdso_per_cpu_data, ectg_user_time);
+ BLANK();
/* constants used by the vdso */
DEFINE(__CLOCK_REALTIME, CLOCK_REALTIME);
DEFINE(__CLOCK_MONOTONIC, CLOCK_MONOTONIC);
@@ -86,102 +91,105 @@ int main(void)
DEFINE(__CLOCK_COARSE_RES, LOW_RES_NSEC);
BLANK();
/* idle data offsets */
- DEFINE(__CLOCK_IDLE_ENTER, offsetof(struct s390_idle_data, clock_idle_enter));
- DEFINE(__CLOCK_IDLE_EXIT, offsetof(struct s390_idle_data, clock_idle_exit));
- DEFINE(__TIMER_IDLE_ENTER, offsetof(struct s390_idle_data, timer_idle_enter));
- DEFINE(__TIMER_IDLE_EXIT, offsetof(struct s390_idle_data, timer_idle_exit));
- /* lowcore offsets */
- DEFINE(__LC_EXT_PARAMS, offsetof(struct _lowcore, ext_params));
- DEFINE(__LC_EXT_CPU_ADDR, offsetof(struct _lowcore, ext_cpu_addr));
- DEFINE(__LC_EXT_INT_CODE, offsetof(struct _lowcore, ext_int_code));
- DEFINE(__LC_SVC_ILC, offsetof(struct _lowcore, svc_ilc));
- DEFINE(__LC_SVC_INT_CODE, offsetof(struct _lowcore, svc_code));
- DEFINE(__LC_PGM_ILC, offsetof(struct _lowcore, pgm_ilc));
- DEFINE(__LC_PGM_INT_CODE, offsetof(struct _lowcore, pgm_code));
- DEFINE(__LC_TRANS_EXC_CODE, offsetof(struct _lowcore, trans_exc_code));
- DEFINE(__LC_MON_CLASS_NR, offsetof(struct _lowcore, mon_class_num));
- DEFINE(__LC_PER_CODE, offsetof(struct _lowcore, per_code));
- DEFINE(__LC_PER_ATMID, offsetof(struct _lowcore, per_atmid));
- DEFINE(__LC_PER_ADDRESS, offsetof(struct _lowcore, per_address));
- DEFINE(__LC_EXC_ACCESS_ID, offsetof(struct _lowcore, exc_access_id));
- DEFINE(__LC_PER_ACCESS_ID, offsetof(struct _lowcore, per_access_id));
- DEFINE(__LC_OP_ACCESS_ID, offsetof(struct _lowcore, op_access_id));
- DEFINE(__LC_AR_MODE_ID, offsetof(struct _lowcore, ar_mode_id));
- DEFINE(__LC_MON_CODE, offsetof(struct _lowcore, monitor_code));
- DEFINE(__LC_SUBCHANNEL_ID, offsetof(struct _lowcore, subchannel_id));
- DEFINE(__LC_SUBCHANNEL_NR, offsetof(struct _lowcore, subchannel_nr));
- DEFINE(__LC_IO_INT_PARM, offsetof(struct _lowcore, io_int_parm));
- DEFINE(__LC_IO_INT_WORD, offsetof(struct _lowcore, io_int_word));
- DEFINE(__LC_STFL_FAC_LIST, offsetof(struct _lowcore, stfl_fac_list));
- DEFINE(__LC_MCCK_CODE, offsetof(struct _lowcore, mcck_interruption_code));
- DEFINE(__LC_MCCK_EXT_DAM_CODE, offsetof(struct _lowcore, external_damage_code));
- DEFINE(__LC_RST_OLD_PSW, offsetof(struct _lowcore, restart_old_psw));
- DEFINE(__LC_EXT_OLD_PSW, offsetof(struct _lowcore, external_old_psw));
- DEFINE(__LC_SVC_OLD_PSW, offsetof(struct _lowcore, svc_old_psw));
- DEFINE(__LC_PGM_OLD_PSW, offsetof(struct _lowcore, program_old_psw));
- DEFINE(__LC_MCK_OLD_PSW, offsetof(struct _lowcore, mcck_old_psw));
- DEFINE(__LC_IO_OLD_PSW, offsetof(struct _lowcore, io_old_psw));
- DEFINE(__LC_RST_NEW_PSW, offsetof(struct _lowcore, restart_psw));
- DEFINE(__LC_EXT_NEW_PSW, offsetof(struct _lowcore, external_new_psw));
- DEFINE(__LC_SVC_NEW_PSW, offsetof(struct _lowcore, svc_new_psw));
- DEFINE(__LC_PGM_NEW_PSW, offsetof(struct _lowcore, program_new_psw));
- DEFINE(__LC_MCK_NEW_PSW, offsetof(struct _lowcore, mcck_new_psw));
- DEFINE(__LC_IO_NEW_PSW, offsetof(struct _lowcore, io_new_psw));
+ OFFSET(__CLOCK_IDLE_ENTER, s390_idle_data, clock_idle_enter);
+ OFFSET(__CLOCK_IDLE_EXIT, s390_idle_data, clock_idle_exit);
+ OFFSET(__TIMER_IDLE_ENTER, s390_idle_data, timer_idle_enter);
+ OFFSET(__TIMER_IDLE_EXIT, s390_idle_data, timer_idle_exit);
BLANK();
- DEFINE(__LC_SAVE_AREA_SYNC, offsetof(struct _lowcore, save_area_sync));
- DEFINE(__LC_SAVE_AREA_ASYNC, offsetof(struct _lowcore, save_area_async));
- DEFINE(__LC_SAVE_AREA_RESTART, offsetof(struct _lowcore, save_area_restart));
- DEFINE(__LC_CPU_FLAGS, offsetof(struct _lowcore, cpu_flags));
- DEFINE(__LC_RETURN_PSW, offsetof(struct _lowcore, return_psw));
- DEFINE(__LC_RETURN_MCCK_PSW, offsetof(struct _lowcore, return_mcck_psw));
- DEFINE(__LC_SYNC_ENTER_TIMER, offsetof(struct _lowcore, sync_enter_timer));
- DEFINE(__LC_ASYNC_ENTER_TIMER, offsetof(struct _lowcore, async_enter_timer));
- DEFINE(__LC_MCCK_ENTER_TIMER, offsetof(struct _lowcore, mcck_enter_timer));
- DEFINE(__LC_EXIT_TIMER, offsetof(struct _lowcore, exit_timer));
- DEFINE(__LC_USER_TIMER, offsetof(struct _lowcore, user_timer));
- DEFINE(__LC_SYSTEM_TIMER, offsetof(struct _lowcore, system_timer));
- DEFINE(__LC_STEAL_TIMER, offsetof(struct _lowcore, steal_timer));
- DEFINE(__LC_LAST_UPDATE_TIMER, offsetof(struct _lowcore, last_update_timer));
- DEFINE(__LC_LAST_UPDATE_CLOCK, offsetof(struct _lowcore, last_update_clock));
- DEFINE(__LC_CURRENT, offsetof(struct _lowcore, current_task));
- DEFINE(__LC_CURRENT_PID, offsetof(struct _lowcore, current_pid));
- DEFINE(__LC_THREAD_INFO, offsetof(struct _lowcore, thread_info));
- DEFINE(__LC_KERNEL_STACK, offsetof(struct _lowcore, kernel_stack));
- DEFINE(__LC_ASYNC_STACK, offsetof(struct _lowcore, async_stack));
- DEFINE(__LC_PANIC_STACK, offsetof(struct _lowcore, panic_stack));
- DEFINE(__LC_RESTART_STACK, offsetof(struct _lowcore, restart_stack));
- DEFINE(__LC_RESTART_FN, offsetof(struct _lowcore, restart_fn));
- DEFINE(__LC_RESTART_DATA, offsetof(struct _lowcore, restart_data));
- DEFINE(__LC_RESTART_SOURCE, offsetof(struct _lowcore, restart_source));
- DEFINE(__LC_KERNEL_ASCE, offsetof(struct _lowcore, kernel_asce));
- DEFINE(__LC_USER_ASCE, offsetof(struct _lowcore, user_asce));
- DEFINE(__LC_INT_CLOCK, offsetof(struct _lowcore, int_clock));
- DEFINE(__LC_MCCK_CLOCK, offsetof(struct _lowcore, mcck_clock));
- DEFINE(__LC_MACHINE_FLAGS, offsetof(struct _lowcore, machine_flags));
- DEFINE(__LC_DUMP_REIPL, offsetof(struct _lowcore, ipib));
+ /* hardware defined lowcore locations 0x000 - 0x1ff */
+ OFFSET(__LC_EXT_PARAMS, _lowcore, ext_params);
+ OFFSET(__LC_EXT_CPU_ADDR, _lowcore, ext_cpu_addr);
+ OFFSET(__LC_EXT_INT_CODE, _lowcore, ext_int_code);
+ OFFSET(__LC_SVC_ILC, _lowcore, svc_ilc);
+ OFFSET(__LC_SVC_INT_CODE, _lowcore, svc_code);
+ OFFSET(__LC_PGM_ILC, _lowcore, pgm_ilc);
+ OFFSET(__LC_PGM_INT_CODE, _lowcore, pgm_code);
+ OFFSET(__LC_DATA_EXC_CODE, _lowcore, data_exc_code);
+ OFFSET(__LC_MON_CLASS_NR, _lowcore, mon_class_num);
+ OFFSET(__LC_PER_CODE, _lowcore, per_code);
+ OFFSET(__LC_PER_ATMID, _lowcore, per_atmid);
+ OFFSET(__LC_PER_ADDRESS, _lowcore, per_address);
+ OFFSET(__LC_EXC_ACCESS_ID, _lowcore, exc_access_id);
+ OFFSET(__LC_PER_ACCESS_ID, _lowcore, per_access_id);
+ OFFSET(__LC_OP_ACCESS_ID, _lowcore, op_access_id);
+ OFFSET(__LC_AR_MODE_ID, _lowcore, ar_mode_id);
+ OFFSET(__LC_TRANS_EXC_CODE, _lowcore, trans_exc_code);
+ OFFSET(__LC_MON_CODE, _lowcore, monitor_code);
+ OFFSET(__LC_SUBCHANNEL_ID, _lowcore, subchannel_id);
+ OFFSET(__LC_SUBCHANNEL_NR, _lowcore, subchannel_nr);
+ OFFSET(__LC_IO_INT_PARM, _lowcore, io_int_parm);
+ OFFSET(__LC_IO_INT_WORD, _lowcore, io_int_word);
+ OFFSET(__LC_STFL_FAC_LIST, _lowcore, stfl_fac_list);
+ OFFSET(__LC_MCCK_CODE, _lowcore, mcck_interruption_code);
+ OFFSET(__LC_MCCK_FAIL_STOR_ADDR, _lowcore, failing_storage_address);
+ OFFSET(__LC_LAST_BREAK, _lowcore, breaking_event_addr);
+ OFFSET(__LC_RST_OLD_PSW, _lowcore, restart_old_psw);
+ OFFSET(__LC_EXT_OLD_PSW, _lowcore, external_old_psw);
+ OFFSET(__LC_SVC_OLD_PSW, _lowcore, svc_old_psw);
+ OFFSET(__LC_PGM_OLD_PSW, _lowcore, program_old_psw);
+ OFFSET(__LC_MCK_OLD_PSW, _lowcore, mcck_old_psw);
+ OFFSET(__LC_IO_OLD_PSW, _lowcore, io_old_psw);
+ OFFSET(__LC_RST_NEW_PSW, _lowcore, restart_psw);
+ OFFSET(__LC_EXT_NEW_PSW, _lowcore, external_new_psw);
+ OFFSET(__LC_SVC_NEW_PSW, _lowcore, svc_new_psw);
+ OFFSET(__LC_PGM_NEW_PSW, _lowcore, program_new_psw);
+ OFFSET(__LC_MCK_NEW_PSW, _lowcore, mcck_new_psw);
+ OFFSET(__LC_IO_NEW_PSW, _lowcore, io_new_psw);
+ /* software defined lowcore locations 0x200 - 0xdff*/
+ OFFSET(__LC_SAVE_AREA_SYNC, _lowcore, save_area_sync);
+ OFFSET(__LC_SAVE_AREA_ASYNC, _lowcore, save_area_async);
+ OFFSET(__LC_SAVE_AREA_RESTART, _lowcore, save_area_restart);
+ OFFSET(__LC_CPU_FLAGS, _lowcore, cpu_flags);
+ OFFSET(__LC_RETURN_PSW, _lowcore, return_psw);
+ OFFSET(__LC_RETURN_MCCK_PSW, _lowcore, return_mcck_psw);
+ OFFSET(__LC_SYNC_ENTER_TIMER, _lowcore, sync_enter_timer);
+ OFFSET(__LC_ASYNC_ENTER_TIMER, _lowcore, async_enter_timer);
+ OFFSET(__LC_MCCK_ENTER_TIMER, _lowcore, mcck_enter_timer);
+ OFFSET(__LC_EXIT_TIMER, _lowcore, exit_timer);
+ OFFSET(__LC_USER_TIMER, _lowcore, user_timer);
+ OFFSET(__LC_SYSTEM_TIMER, _lowcore, system_timer);
+ OFFSET(__LC_STEAL_TIMER, _lowcore, steal_timer);
+ OFFSET(__LC_LAST_UPDATE_TIMER, _lowcore, last_update_timer);
+ OFFSET(__LC_LAST_UPDATE_CLOCK, _lowcore, last_update_clock);
+ OFFSET(__LC_INT_CLOCK, _lowcore, int_clock);
+ OFFSET(__LC_MCCK_CLOCK, _lowcore, mcck_clock);
+ OFFSET(__LC_CURRENT, _lowcore, current_task);
+ OFFSET(__LC_THREAD_INFO, _lowcore, thread_info);
+ OFFSET(__LC_KERNEL_STACK, _lowcore, kernel_stack);
+ OFFSET(__LC_ASYNC_STACK, _lowcore, async_stack);
+ OFFSET(__LC_PANIC_STACK, _lowcore, panic_stack);
+ OFFSET(__LC_RESTART_STACK, _lowcore, restart_stack);
+ OFFSET(__LC_RESTART_FN, _lowcore, restart_fn);
+ OFFSET(__LC_RESTART_DATA, _lowcore, restart_data);
+ OFFSET(__LC_RESTART_SOURCE, _lowcore, restart_source);
+ OFFSET(__LC_USER_ASCE, _lowcore, user_asce);
+ OFFSET(__LC_LPP, _lowcore, lpp);
+ OFFSET(__LC_CURRENT_PID, _lowcore, current_pid);
+ OFFSET(__LC_PERCPU_OFFSET, _lowcore, percpu_offset);
+ OFFSET(__LC_VDSO_PER_CPU, _lowcore, vdso_per_cpu_data);
+ OFFSET(__LC_MACHINE_FLAGS, _lowcore, machine_flags);
+ OFFSET(__LC_GMAP, _lowcore, gmap);
+ OFFSET(__LC_PASTE, _lowcore, paste);
+ /* software defined ABI-relevant lowcore locations 0xe00 - 0xe20 */
+ OFFSET(__LC_DUMP_REIPL, _lowcore, ipib);
+ /* hardware defined lowcore locations 0x1000 - 0x18ff */
+ OFFSET(__LC_VX_SAVE_AREA_ADDR, _lowcore, vector_save_area_addr);
+ OFFSET(__LC_EXT_PARAMS2, _lowcore, ext_params2);
+ OFFSET(SAVE_AREA_BASE, _lowcore, floating_pt_save_area);
+ OFFSET(__LC_FPREGS_SAVE_AREA, _lowcore, floating_pt_save_area);
+ OFFSET(__LC_GPREGS_SAVE_AREA, _lowcore, gpregs_save_area);
+ OFFSET(__LC_PSW_SAVE_AREA, _lowcore, psw_save_area);
+ OFFSET(__LC_PREFIX_SAVE_AREA, _lowcore, prefixreg_save_area);
+ OFFSET(__LC_FP_CREG_SAVE_AREA, _lowcore, fpt_creg_save_area);
+ OFFSET(__LC_CPU_TIMER_SAVE_AREA, _lowcore, cpu_timer_save_area);
+ OFFSET(__LC_CLOCK_COMP_SAVE_AREA, _lowcore, clock_comp_save_area);
+ OFFSET(__LC_AREGS_SAVE_AREA, _lowcore, access_regs_save_area);
+ OFFSET(__LC_CREGS_SAVE_AREA, _lowcore, cregs_save_area);
+ OFFSET(__LC_PGM_TDB, _lowcore, pgm_tdb);
BLANK();
- DEFINE(__LC_CPU_TIMER_SAVE_AREA, offsetof(struct _lowcore, cpu_timer_save_area));
- DEFINE(__LC_CLOCK_COMP_SAVE_AREA, offsetof(struct _lowcore, clock_comp_save_area));
- DEFINE(__LC_PSW_SAVE_AREA, offsetof(struct _lowcore, psw_save_area));
- DEFINE(__LC_PREFIX_SAVE_AREA, offsetof(struct _lowcore, prefixreg_save_area));
- DEFINE(__LC_AREGS_SAVE_AREA, offsetof(struct _lowcore, access_regs_save_area));
- DEFINE(__LC_FPREGS_SAVE_AREA, offsetof(struct _lowcore, floating_pt_save_area));
- DEFINE(__LC_GPREGS_SAVE_AREA, offsetof(struct _lowcore, gpregs_save_area));
- DEFINE(__LC_CREGS_SAVE_AREA, offsetof(struct _lowcore, cregs_save_area));
- DEFINE(__LC_DATA_EXC_CODE, offsetof(struct _lowcore, data_exc_code));
- DEFINE(__LC_MCCK_FAIL_STOR_ADDR, offsetof(struct _lowcore, failing_storage_address));
- DEFINE(__LC_VX_SAVE_AREA_ADDR, offsetof(struct _lowcore, vector_save_area_addr));
- DEFINE(__LC_EXT_PARAMS2, offsetof(struct _lowcore, ext_params2));
- DEFINE(SAVE_AREA_BASE, offsetof(struct _lowcore, floating_pt_save_area));
- DEFINE(__LC_PASTE, offsetof(struct _lowcore, paste));
- DEFINE(__LC_FP_CREG_SAVE_AREA, offsetof(struct _lowcore, fpt_creg_save_area));
- DEFINE(__LC_LAST_BREAK, offsetof(struct _lowcore, breaking_event_addr));
- DEFINE(__LC_PERCPU_OFFSET, offsetof(struct _lowcore, percpu_offset));
- DEFINE(__LC_VDSO_PER_CPU, offsetof(struct _lowcore, vdso_per_cpu_data));
- DEFINE(__LC_GMAP, offsetof(struct _lowcore, gmap));
- DEFINE(__LC_PGM_TDB, offsetof(struct _lowcore, pgm_tdb));
- DEFINE(__GMAP_ASCE, offsetof(struct gmap, asce));
- DEFINE(__SIE_PROG0C, offsetof(struct kvm_s390_sie_block, prog0c));
- DEFINE(__SIE_PROG20, offsetof(struct kvm_s390_sie_block, prog20));
+ /* gmap/sie offsets */
+ OFFSET(__GMAP_ASCE, gmap, asce);
+ OFFSET(__SIE_PROG0C, kvm_s390_sie_block, prog0c);
+ OFFSET(__SIE_PROG20, kvm_s390_sie_block, prog20);
return 0;
}
diff --git a/arch/s390/kernel/compat_signal.c b/arch/s390/kernel/compat_signal.c
index e0f9d270b..66c94417c 100644
--- a/arch/s390/kernel/compat_signal.c
+++ b/arch/s390/kernel/compat_signal.c
@@ -249,7 +249,7 @@ static int save_sigregs_ext32(struct pt_regs *regs,
return -EFAULT;
/* Save vector registers to signal stack */
- if (is_vx_task(current)) {
+ if (MACHINE_HAS_VX) {
for (i = 0; i < __NUM_VXRS_LOW; i++)
vxrs[i] = *((__u64 *)(current->thread.fpu.vxrs + i) + 1);
if (__copy_to_user(&sregs_ext->vxrs_low, vxrs,
@@ -277,7 +277,7 @@ static int restore_sigregs_ext32(struct pt_regs *regs,
*(__u32 *)&regs->gprs[i] = gprs_high[i];
/* Restore vector registers from signal stack */
- if (is_vx_task(current)) {
+ if (MACHINE_HAS_VX) {
if (__copy_from_user(vxrs, &sregs_ext->vxrs_low,
sizeof(sregs_ext->vxrs_low)) ||
__copy_from_user(current->thread.fpu.vxrs + __NUM_VXRS_LOW,
@@ -470,8 +470,7 @@ static int setup_rt_frame32(struct ksignal *ksig, sigset_t *set,
*/
uc_flags = UC_GPRS_HIGH;
if (MACHINE_HAS_VX) {
- if (is_vx_task(current))
- uc_flags |= UC_VXRS;
+ uc_flags |= UC_VXRS;
} else
frame_size -= sizeof(frame->uc.uc_mcontext_ext.vxrs_low) +
sizeof(frame->uc.uc_mcontext_ext.vxrs_high);
diff --git a/arch/s390/kernel/compat_wrapper.c b/arch/s390/kernel/compat_wrapper.c
index 09f194052..fac4eedde 100644
--- a/arch/s390/kernel/compat_wrapper.c
+++ b/arch/s390/kernel/compat_wrapper.c
@@ -176,3 +176,4 @@ COMPAT_SYSCALL_WRAP4(accept4, int, fd, struct sockaddr __user *, upeer_sockaddr,
COMPAT_SYSCALL_WRAP3(getsockname, int, fd, struct sockaddr __user *, usockaddr, int __user *, usockaddr_len);
COMPAT_SYSCALL_WRAP3(getpeername, int, fd, struct sockaddr __user *, usockaddr, int __user *, usockaddr_len);
COMPAT_SYSCALL_WRAP6(sendto, int, fd, void __user *, buff, size_t, len, unsigned int, flags, struct sockaddr __user *, addr, int, addr_len);
+COMPAT_SYSCALL_WRAP3(mlock2, unsigned long, start, size_t, len, int, flags);
diff --git a/arch/s390/kernel/cpcmd.c b/arch/s390/kernel/cpcmd.c
index 199ec92ef..7f768914f 100644
--- a/arch/s390/kernel/cpcmd.c
+++ b/arch/s390/kernel/cpcmd.c
@@ -14,6 +14,7 @@
#include <linux/spinlock.h>
#include <linux/stddef.h>
#include <linux/string.h>
+#include <asm/diag.h>
#include <asm/ebcdic.h>
#include <asm/cpcmd.h>
#include <asm/io.h>
@@ -70,6 +71,7 @@ int __cpcmd(const char *cmd, char *response, int rlen, int *response_code)
memcpy(cpcmd_buf, cmd, cmdlen);
ASCEBC(cpcmd_buf, cmdlen);
+ diag_stat_inc(DIAG_STAT_X008);
if (response) {
memset(response, 0, rlen);
response_len = rlen;
diff --git a/arch/s390/kernel/crash_dump.c b/arch/s390/kernel/crash_dump.c
index 0c6c01eb3..171e09bb8 100644
--- a/arch/s390/kernel/crash_dump.c
+++ b/arch/s390/kernel/crash_dump.c
@@ -32,16 +32,6 @@ static struct memblock_type oldmem_type = {
.regions = &oldmem_region,
};
-#define for_each_dump_mem_range(i, nid, p_start, p_end, p_nid) \
- for (i = 0, __next_mem_range(&i, nid, MEMBLOCK_NONE, \
- &memblock.physmem, \
- &oldmem_type, p_start, \
- p_end, p_nid); \
- i != (u64)ULLONG_MAX; \
- __next_mem_range(&i, nid, MEMBLOCK_NONE, &memblock.physmem,\
- &oldmem_type, \
- p_start, p_end, p_nid))
-
struct dump_save_areas dump_save_areas;
/*
@@ -515,7 +505,8 @@ static int get_mem_chunk_cnt(void)
int cnt = 0;
u64 idx;
- for_each_dump_mem_range(idx, NUMA_NO_NODE, NULL, NULL, NULL)
+ for_each_mem_range(idx, &memblock.physmem, &oldmem_type, NUMA_NO_NODE,
+ MEMBLOCK_NONE, NULL, NULL, NULL)
cnt++;
return cnt;
}
@@ -528,7 +519,8 @@ static void loads_init(Elf64_Phdr *phdr, u64 loads_offset)
phys_addr_t start, end;
u64 idx;
- for_each_dump_mem_range(idx, NUMA_NO_NODE, &start, &end, NULL) {
+ for_each_mem_range(idx, &memblock.physmem, &oldmem_type, NUMA_NO_NODE,
+ MEMBLOCK_NONE, &start, &end, NULL) {
phdr->p_filesz = end - start;
phdr->p_type = PT_LOAD;
phdr->p_offset = start;
diff --git a/arch/s390/kernel/diag.c b/arch/s390/kernel/diag.c
index 2f69243bf..48b37b835 100644
--- a/arch/s390/kernel/diag.c
+++ b/arch/s390/kernel/diag.c
@@ -6,12 +6,137 @@
*/
#include <linux/module.h>
+#include <linux/cpu.h>
+#include <linux/seq_file.h>
+#include <linux/debugfs.h>
#include <asm/diag.h>
+#include <asm/trace/diag.h>
+
+struct diag_stat {
+ unsigned int counter[NR_DIAG_STAT];
+};
+
+static DEFINE_PER_CPU(struct diag_stat, diag_stat);
+
+struct diag_desc {
+ int code;
+ char *name;
+};
+
+static const struct diag_desc diag_map[NR_DIAG_STAT] = {
+ [DIAG_STAT_X008] = { .code = 0x008, .name = "Console Function" },
+ [DIAG_STAT_X00C] = { .code = 0x00c, .name = "Pseudo Timer" },
+ [DIAG_STAT_X010] = { .code = 0x010, .name = "Release Pages" },
+ [DIAG_STAT_X014] = { .code = 0x014, .name = "Spool File Services" },
+ [DIAG_STAT_X044] = { .code = 0x044, .name = "Voluntary Timeslice End" },
+ [DIAG_STAT_X064] = { .code = 0x064, .name = "NSS Manipulation" },
+ [DIAG_STAT_X09C] = { .code = 0x09c, .name = "Relinquish Timeslice" },
+ [DIAG_STAT_X0DC] = { .code = 0x0dc, .name = "Appldata Control" },
+ [DIAG_STAT_X204] = { .code = 0x204, .name = "Logical-CPU Utilization" },
+ [DIAG_STAT_X210] = { .code = 0x210, .name = "Device Information" },
+ [DIAG_STAT_X224] = { .code = 0x224, .name = "EBCDIC-Name Table" },
+ [DIAG_STAT_X250] = { .code = 0x250, .name = "Block I/O" },
+ [DIAG_STAT_X258] = { .code = 0x258, .name = "Page-Reference Services" },
+ [DIAG_STAT_X288] = { .code = 0x288, .name = "Time Bomb" },
+ [DIAG_STAT_X2C4] = { .code = 0x2c4, .name = "FTP Services" },
+ [DIAG_STAT_X2FC] = { .code = 0x2fc, .name = "Guest Performance Data" },
+ [DIAG_STAT_X304] = { .code = 0x304, .name = "Partition-Resource Service" },
+ [DIAG_STAT_X308] = { .code = 0x308, .name = "List-Directed IPL" },
+ [DIAG_STAT_X500] = { .code = 0x500, .name = "Virtio Service" },
+};
+
+static int show_diag_stat(struct seq_file *m, void *v)
+{
+ struct diag_stat *stat;
+ unsigned long n = (unsigned long) v - 1;
+ int cpu, prec, tmp;
+
+ get_online_cpus();
+ if (n == 0) {
+ seq_puts(m, " ");
+
+ for_each_online_cpu(cpu) {
+ prec = 10;
+ for (tmp = 10; cpu >= tmp; tmp *= 10)
+ prec--;
+ seq_printf(m, "%*s%d", prec, "CPU", cpu);
+ }
+ seq_putc(m, '\n');
+ } else if (n <= NR_DIAG_STAT) {
+ seq_printf(m, "diag %03x:", diag_map[n-1].code);
+ for_each_online_cpu(cpu) {
+ stat = &per_cpu(diag_stat, cpu);
+ seq_printf(m, " %10u", stat->counter[n-1]);
+ }
+ seq_printf(m, " %s\n", diag_map[n-1].name);
+ }
+ put_online_cpus();
+ return 0;
+}
+
+static void *show_diag_stat_start(struct seq_file *m, loff_t *pos)
+{
+ return *pos <= nr_cpu_ids ? (void *)((unsigned long) *pos + 1) : NULL;
+}
+
+static void *show_diag_stat_next(struct seq_file *m, void *v, loff_t *pos)
+{
+ ++*pos;
+ return show_diag_stat_start(m, pos);
+}
+
+static void show_diag_stat_stop(struct seq_file *m, void *v)
+{
+}
+
+static const struct seq_operations show_diag_stat_sops = {
+ .start = show_diag_stat_start,
+ .next = show_diag_stat_next,
+ .stop = show_diag_stat_stop,
+ .show = show_diag_stat,
+};
+
+static int show_diag_stat_open(struct inode *inode, struct file *file)
+{
+ return seq_open(file, &show_diag_stat_sops);
+}
+
+static const struct file_operations show_diag_stat_fops = {
+ .open = show_diag_stat_open,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = seq_release,
+};
+
+
+static int __init show_diag_stat_init(void)
+{
+ debugfs_create_file("diag_stat", 0400, NULL, NULL,
+ &show_diag_stat_fops);
+ return 0;
+}
+
+device_initcall(show_diag_stat_init);
+
+void diag_stat_inc(enum diag_stat_enum nr)
+{
+ this_cpu_inc(diag_stat.counter[nr]);
+ trace_s390_diagnose(diag_map[nr].code);
+}
+EXPORT_SYMBOL(diag_stat_inc);
+
+void diag_stat_inc_norecursion(enum diag_stat_enum nr)
+{
+ this_cpu_inc(diag_stat.counter[nr]);
+ trace_s390_diagnose_norecursion(diag_map[nr].code);
+}
+EXPORT_SYMBOL(diag_stat_inc_norecursion);
/*
* Diagnose 14: Input spool file manipulation
*/
-int diag14(unsigned long rx, unsigned long ry1, unsigned long subcode)
+static inline int __diag14(unsigned long rx, unsigned long ry1,
+ unsigned long subcode)
{
register unsigned long _ry1 asm("2") = ry1;
register unsigned long _ry2 asm("3") = subcode;
@@ -29,6 +154,12 @@ int diag14(unsigned long rx, unsigned long ry1, unsigned long subcode)
return rc;
}
+
+int diag14(unsigned long rx, unsigned long ry1, unsigned long subcode)
+{
+ diag_stat_inc(DIAG_STAT_X014);
+ return __diag14(rx, ry1, subcode);
+}
EXPORT_SYMBOL(diag14);
/*
@@ -48,6 +179,7 @@ int diag210(struct diag210 *addr)
spin_lock_irqsave(&diag210_lock, flags);
diag210_tmp = *addr;
+ diag_stat_inc(DIAG_STAT_X210);
asm volatile(
" lhi %0,-1\n"
" sam31\n"
diff --git a/arch/s390/kernel/dis.c b/arch/s390/kernel/dis.c
index 8140d10c6..6e7296160 100644
--- a/arch/s390/kernel/dis.c
+++ b/arch/s390/kernel/dis.c
@@ -1920,16 +1920,23 @@ static int print_insn(char *buffer, unsigned char *code, unsigned long addr)
}
if (separator)
ptr += sprintf(ptr, "%c", separator);
+ /*
+ * Use four '%' characters below because of the
+ * following two conversions:
+ *
+ * 1) sprintf: %%%%r -> %%r
+ * 2) printk : %%r -> %r
+ */
if (operand->flags & OPERAND_GPR)
- ptr += sprintf(ptr, "%%r%i", value);
+ ptr += sprintf(ptr, "%%%%r%i", value);
else if (operand->flags & OPERAND_FPR)
- ptr += sprintf(ptr, "%%f%i", value);
+ ptr += sprintf(ptr, "%%%%f%i", value);
else if (operand->flags & OPERAND_AR)
- ptr += sprintf(ptr, "%%a%i", value);
+ ptr += sprintf(ptr, "%%%%a%i", value);
else if (operand->flags & OPERAND_CR)
- ptr += sprintf(ptr, "%%c%i", value);
+ ptr += sprintf(ptr, "%%%%c%i", value);
else if (operand->flags & OPERAND_VR)
- ptr += sprintf(ptr, "%%v%i", value);
+ ptr += sprintf(ptr, "%%%%v%i", value);
else if (operand->flags & OPERAND_PCREL)
ptr += sprintf(ptr, "%lx", (signed int) value
+ addr);
diff --git a/arch/s390/kernel/early.c b/arch/s390/kernel/early.c
index 549a73a4b..3c31609df 100644
--- a/arch/s390/kernel/early.c
+++ b/arch/s390/kernel/early.c
@@ -17,6 +17,7 @@
#include <linux/pfn.h>
#include <linux/uaccess.h>
#include <linux/kernel.h>
+#include <asm/diag.h>
#include <asm/ebcdic.h>
#include <asm/ipl.h>
#include <asm/lowcore.h>
@@ -286,6 +287,7 @@ static __init void detect_diag9c(void)
int rc;
cpu_address = stap();
+ diag_stat_inc(DIAG_STAT_X09C);
asm volatile(
" diag %2,0,0x9c\n"
"0: la %0,0\n"
@@ -300,6 +302,7 @@ static __init void detect_diag44(void)
{
int rc;
+ diag_stat_inc(DIAG_STAT_X044);
asm volatile(
" diag 0,0,0x44\n"
"0: la %0,0\n"
@@ -326,9 +329,19 @@ static __init void detect_machine_facilities(void)
S390_lowcore.machine_flags |= MACHINE_FLAG_TE;
if (test_facility(51))
S390_lowcore.machine_flags |= MACHINE_FLAG_TLB_LC;
- if (test_facility(129))
+ if (test_facility(129)) {
S390_lowcore.machine_flags |= MACHINE_FLAG_VX;
+ __ctl_set_bit(0, 17);
+ }
+}
+
+static int __init disable_vector_extension(char *str)
+{
+ S390_lowcore.machine_flags &= ~MACHINE_FLAG_VX;
+ __ctl_clear_bit(0, 17);
+ return 1;
}
+early_param("novx", disable_vector_extension);
static int __init cad_setup(char *str)
{
diff --git a/arch/s390/kernel/entry.S b/arch/s390/kernel/entry.S
index 582fe44ab..857b6526d 100644
--- a/arch/s390/kernel/entry.S
+++ b/arch/s390/kernel/entry.S
@@ -20,8 +20,9 @@
#include <asm/page.h>
#include <asm/sigp.h>
#include <asm/irq.h>
-#include <asm/fpu-internal.h>
#include <asm/vx-insn.h>
+#include <asm/setup.h>
+#include <asm/nmi.h>
__PT_R0 = __PT_GPRS
__PT_R1 = __PT_GPRS + 8
@@ -139,6 +140,28 @@ _PIF_WORK = (_PIF_PER_TRAP)
#endif
.endm
+ /*
+ * The TSTMSK macro generates a test-under-mask instruction by
+ * calculating the memory offset for the specified mask value.
+ * Mask value can be any constant. The macro shifts the mask
+ * value to calculate the memory offset for the test-under-mask
+ * instruction.
+ */
+ .macro TSTMSK addr, mask, size=8, bytepos=0
+ .if (\bytepos < \size) && (\mask >> 8)
+ .if (\mask & 0xff)
+ .error "Mask exceeds byte boundary"
+ .endif
+ TSTMSK \addr, "(\mask >> 8)", \size, "(\bytepos + 1)"
+ .exitm
+ .endif
+ .ifeq \mask
+ .error "Mask must not be zero"
+ .endif
+ off = \size - \bytepos - 1
+ tm off+\addr, \mask
+ .endm
+
.section .kprobes.text, "ax"
/*
@@ -164,8 +187,11 @@ ENTRY(__switch_to)
stg %r15,__LC_KERNEL_STACK # store end of kernel stack
lg %r15,__THREAD_ksp(%r1) # load kernel stack of next
lctl %c4,%c4,__TASK_pid(%r3) # load pid to control reg. 4
- mvc __LC_CURRENT_PID+4(4,%r0),__TASK_pid(%r3) # store pid of next
+ mvc __LC_CURRENT_PID(4,%r0),__TASK_pid(%r3) # store pid of next
lmg %r6,%r15,__SF_GPRS(%r15) # load gprs of next task
+ TSTMSK __LC_MACHINE_FLAGS,MACHINE_FLAG_LPP
+ bzr %r14
+ .insn s,0xb2800000,__LC_LPP # set program parameter
br %r14
.L__critical_start:
@@ -180,8 +206,8 @@ ENTRY(sie64a)
stmg %r6,%r14,__SF_GPRS(%r15) # save kernel registers
stg %r2,__SF_EMPTY(%r15) # save control block pointer
stg %r3,__SF_EMPTY+8(%r15) # save guest register save area
- xc __SF_EMPTY+16(16,%r15),__SF_EMPTY+16(%r15) # host id & reason
- tm __LC_CPU_FLAGS+7,_CIF_FPU # load guest fp/vx registers ?
+ xc __SF_EMPTY+16(8,%r15),__SF_EMPTY+16(%r15) # reason code = 0
+ TSTMSK __LC_CPU_FLAGS,_CIF_FPU # load guest fp/vx registers ?
jno .Lsie_load_guest_gprs
brasl %r14,load_fpu_regs # load guest fp/vx regs
.Lsie_load_guest_gprs:
@@ -195,16 +221,9 @@ ENTRY(sie64a)
oi __SIE_PROG0C+3(%r14),1 # we are going into SIE now
tm __SIE_PROG20+3(%r14),3 # last exit...
jnz .Lsie_skip
- tm __LC_CPU_FLAGS+7,_CIF_FPU
+ TSTMSK __LC_CPU_FLAGS,_CIF_FPU
jo .Lsie_skip # exit if fp/vx regs changed
- tm __LC_MACHINE_FLAGS+6,0x20 # MACHINE_FLAG_LPP
- jz .Lsie_enter
- .insn s,0xb2800000,__LC_CURRENT_PID # set guest id to pid
-.Lsie_enter:
sie 0(%r14)
- tm __LC_MACHINE_FLAGS+6,0x20 # MACHINE_FLAG_LPP
- jz .Lsie_skip
- .insn s,0xb2800000,__SF_EMPTY+16(%r15)# set host id
.Lsie_skip:
ni __SIE_PROG0C+3(%r14),0xfe # no longer in SIE
lctlg %c1,%c1,__LC_USER_ASCE # load primary asce
@@ -221,11 +240,11 @@ sie_exit:
lg %r14,__SF_EMPTY+8(%r15) # load guest register save area
stmg %r0,%r13,0(%r14) # save guest gprs 0-13
lmg %r6,%r14,__SF_GPRS(%r15) # restore kernel registers
- lg %r2,__SF_EMPTY+24(%r15) # return exit reason code
+ lg %r2,__SF_EMPTY+16(%r15) # return exit reason code
br %r14
.Lsie_fault:
lghi %r14,-EFAULT
- stg %r14,__SF_EMPTY+24(%r15) # set exit reason code
+ stg %r14,__SF_EMPTY+16(%r15) # set exit reason code
j sie_exit
EX_TABLE(.Lrewind_pad,.Lsie_fault)
@@ -271,7 +290,7 @@ ENTRY(system_call)
stg %r2,__PT_ORIG_GPR2(%r11)
stg %r7,STACK_FRAME_OVERHEAD(%r15)
lgf %r9,0(%r8,%r10) # get system call add.
- tm __TI_flags+7(%r12),_TIF_TRACE
+ TSTMSK __TI_flags(%r12),_TIF_TRACE
jnz .Lsysc_tracesys
basr %r14,%r9 # call sys_xxxx
stg %r2,__PT_R2(%r11) # store return value
@@ -279,11 +298,11 @@ ENTRY(system_call)
.Lsysc_return:
LOCKDEP_SYS_EXIT
.Lsysc_tif:
- tm __PT_FLAGS+7(%r11),_PIF_WORK
+ TSTMSK __PT_FLAGS(%r11),_PIF_WORK
jnz .Lsysc_work
- tm __TI_flags+7(%r12),_TIF_WORK
+ TSTMSK __TI_flags(%r12),_TIF_WORK
jnz .Lsysc_work # check for work
- tm __LC_CPU_FLAGS+7,_CIF_WORK
+ TSTMSK __LC_CPU_FLAGS,_CIF_WORK
jnz .Lsysc_work
.Lsysc_restore:
lg %r14,__LC_VDSO_PER_CPU
@@ -299,23 +318,23 @@ ENTRY(system_call)
# One of the work bits is on. Find out which one.
#
.Lsysc_work:
- tm __LC_CPU_FLAGS+7,_CIF_MCCK_PENDING
+ TSTMSK __LC_CPU_FLAGS,_CIF_MCCK_PENDING
jo .Lsysc_mcck_pending
- tm __TI_flags+7(%r12),_TIF_NEED_RESCHED
+ TSTMSK __TI_flags(%r12),_TIF_NEED_RESCHED
jo .Lsysc_reschedule
#ifdef CONFIG_UPROBES
- tm __TI_flags+7(%r12),_TIF_UPROBE
+ TSTMSK __TI_flags(%r12),_TIF_UPROBE
jo .Lsysc_uprobe_notify
#endif
- tm __PT_FLAGS+7(%r11),_PIF_PER_TRAP
+ TSTMSK __PT_FLAGS(%r11),_PIF_PER_TRAP
jo .Lsysc_singlestep
- tm __TI_flags+7(%r12),_TIF_SIGPENDING
+ TSTMSK __TI_flags(%r12),_TIF_SIGPENDING
jo .Lsysc_sigpending
- tm __TI_flags+7(%r12),_TIF_NOTIFY_RESUME
+ TSTMSK __TI_flags(%r12),_TIF_NOTIFY_RESUME
jo .Lsysc_notify_resume
- tm __LC_CPU_FLAGS+7,_CIF_FPU
+ TSTMSK __LC_CPU_FLAGS,_CIF_FPU
jo .Lsysc_vxrs
- tm __LC_CPU_FLAGS+7,_CIF_ASCE
+ TSTMSK __LC_CPU_FLAGS,_CIF_ASCE
jo .Lsysc_uaccess
j .Lsysc_return # beware of critical section cleanup
@@ -354,7 +373,7 @@ ENTRY(system_call)
.Lsysc_sigpending:
lgr %r2,%r11 # pass pointer to pt_regs
brasl %r14,do_signal
- tm __PT_FLAGS+7(%r11),_PIF_SYSCALL
+ TSTMSK __PT_FLAGS(%r11),_PIF_SYSCALL
jno .Lsysc_return
lmg %r2,%r7,__PT_R2(%r11) # load svc arguments
lg %r10,__TI_sysc_table(%r12) # address of system call table
@@ -414,7 +433,7 @@ ENTRY(system_call)
basr %r14,%r9 # call sys_xxx
stg %r2,__PT_R2(%r11) # store return value
.Lsysc_tracenogo:
- tm __TI_flags+7(%r12),_TIF_TRACE
+ TSTMSK __TI_flags(%r12),_TIF_TRACE
jz .Lsysc_return
lgr %r2,%r11 # pass pointer to pt_regs
larl %r14,.Lsysc_return
@@ -544,6 +563,8 @@ ENTRY(io_int_handler)
stmg %r8,%r9,__PT_PSW(%r11)
mvc __PT_INT_CODE(12,%r11),__LC_SUBCHANNEL_ID
xc __PT_FLAGS(8,%r11),__PT_FLAGS(%r11)
+ TSTMSK __LC_CPU_FLAGS,_CIF_IGNORE_IRQ
+ jo .Lio_restore
TRACE_IRQS_OFF
xc __SF_BACKCHAIN(8,%r15),__SF_BACKCHAIN(%r15)
.Lio_loop:
@@ -554,7 +575,7 @@ ENTRY(io_int_handler)
lghi %r3,THIN_INTERRUPT
.Lio_call:
brasl %r14,do_IRQ
- tm __LC_MACHINE_FLAGS+6,0x10 # MACHINE_FLAG_LPAR
+ TSTMSK __LC_MACHINE_FLAGS,MACHINE_FLAG_LPAR
jz .Lio_return
tpi 0
jz .Lio_return
@@ -564,9 +585,9 @@ ENTRY(io_int_handler)
LOCKDEP_SYS_EXIT
TRACE_IRQS_ON
.Lio_tif:
- tm __TI_flags+7(%r12),_TIF_WORK
+ TSTMSK __TI_flags(%r12),_TIF_WORK
jnz .Lio_work # there is work to do (signals etc.)
- tm __LC_CPU_FLAGS+7,_CIF_WORK
+ TSTMSK __LC_CPU_FLAGS,_CIF_WORK
jnz .Lio_work
.Lio_restore:
lg %r14,__LC_VDSO_PER_CPU
@@ -594,7 +615,7 @@ ENTRY(io_int_handler)
# check for preemptive scheduling
icm %r0,15,__TI_precount(%r12)
jnz .Lio_restore # preemption is disabled
- tm __TI_flags+7(%r12),_TIF_NEED_RESCHED
+ TSTMSK __TI_flags(%r12),_TIF_NEED_RESCHED
jno .Lio_restore
# switch to kernel stack
lg %r1,__PT_R15(%r11)
@@ -626,17 +647,17 @@ ENTRY(io_int_handler)
# One of the work bits is on. Find out which one.
#
.Lio_work_tif:
- tm __LC_CPU_FLAGS+7,_CIF_MCCK_PENDING
+ TSTMSK __LC_CPU_FLAGS,_CIF_MCCK_PENDING
jo .Lio_mcck_pending
- tm __TI_flags+7(%r12),_TIF_NEED_RESCHED
+ TSTMSK __TI_flags(%r12),_TIF_NEED_RESCHED
jo .Lio_reschedule
- tm __TI_flags+7(%r12),_TIF_SIGPENDING
+ TSTMSK __TI_flags(%r12),_TIF_SIGPENDING
jo .Lio_sigpending
- tm __TI_flags+7(%r12),_TIF_NOTIFY_RESUME
+ TSTMSK __TI_flags(%r12),_TIF_NOTIFY_RESUME
jo .Lio_notify_resume
- tm __LC_CPU_FLAGS+7,_CIF_FPU
+ TSTMSK __LC_CPU_FLAGS,_CIF_FPU
jo .Lio_vxrs
- tm __LC_CPU_FLAGS+7,_CIF_ASCE
+ TSTMSK __LC_CPU_FLAGS,_CIF_ASCE
jo .Lio_uaccess
j .Lio_return # beware of critical section cleanup
@@ -719,6 +740,8 @@ ENTRY(ext_int_handler)
mvc __PT_INT_PARM(4,%r11),__LC_EXT_PARAMS
mvc __PT_INT_PARM_LONG(8,%r11),0(%r1)
xc __PT_FLAGS(8,%r11),__PT_FLAGS(%r11)
+ TSTMSK __LC_CPU_FLAGS,_CIF_IGNORE_IRQ
+ jo .Lio_restore
TRACE_IRQS_OFF
xc __SF_BACKCHAIN(8,%r15),__SF_BACKCHAIN(%r15)
lgr %r2,%r11 # pass pointer to pt_regs
@@ -748,27 +771,22 @@ ENTRY(psw_idle)
br %r14
.Lpsw_idle_end:
-/* Store floating-point controls and floating-point or vector extension
- * registers instead. A critical section cleanup assures that the registers
- * are stored even if interrupted for some other work. The register %r2
- * designates a struct fpu to store register contents. If the specified
- * structure does not contain a register save area, the register store is
- * omitted (see also comments in arch_dup_task_struct()).
- *
- * The CIF_FPU flag is set in any case. The CIF_FPU triggers a lazy restore
- * of the register contents at system call or io return.
+/*
+ * Store floating-point controls and floating-point or vector register
+ * depending whether the vector facility is available. A critical section
+ * cleanup assures that the registers are stored even if interrupted for
+ * some other work. The CIF_FPU flag is set to trigger a lazy restore
+ * of the register contents at return from io or a system call.
*/
ENTRY(save_fpu_regs)
lg %r2,__LC_CURRENT
aghi %r2,__TASK_thread
- tm __LC_CPU_FLAGS+7,_CIF_FPU
+ TSTMSK __LC_CPU_FLAGS,_CIF_FPU
bor %r14
stfpc __THREAD_FPU_fpc(%r2)
.Lsave_fpu_regs_fpc_end:
lg %r3,__THREAD_FPU_regs(%r2)
- ltgr %r3,%r3
- jz .Lsave_fpu_regs_done # no save area -> set CIF_FPU
- tm __THREAD_FPU_flags+3(%r2),FPU_USE_VX
+ TSTMSK __LC_MACHINE_FLAGS,MACHINE_FLAG_VX
jz .Lsave_fpu_regs_fp # no -> store FP regs
.Lsave_fpu_regs_vx_low:
VSTM %v0,%v15,0,%r3 # vstm 0,15,0(3)
@@ -797,41 +815,30 @@ ENTRY(save_fpu_regs)
br %r14
.Lsave_fpu_regs_end:
-/* Load floating-point controls and floating-point or vector extension
- * registers. A critical section cleanup assures that the register contents
- * are loaded even if interrupted for some other work. Depending on the saved
- * FP/VX state, the vector-enablement control, CR0.46, is either set or cleared.
+/*
+ * Load floating-point controls and floating-point or vector registers.
+ * A critical section cleanup assures that the register contents are
+ * loaded even if interrupted for some other work.
*
* There are special calling conventions to fit into sysc and io return work:
* %r15: <kernel stack>
* The function requires:
- * %r4 and __SF_EMPTY+32(%r15)
+ * %r4
*/
load_fpu_regs:
lg %r4,__LC_CURRENT
aghi %r4,__TASK_thread
- tm __LC_CPU_FLAGS+7,_CIF_FPU
+ TSTMSK __LC_CPU_FLAGS,_CIF_FPU
bnor %r14
lfpc __THREAD_FPU_fpc(%r4)
- stctg %c0,%c0,__SF_EMPTY+32(%r15) # store CR0
- tm __THREAD_FPU_flags+3(%r4),FPU_USE_VX # VX-enabled task ?
+ TSTMSK __LC_MACHINE_FLAGS,MACHINE_FLAG_VX
lg %r4,__THREAD_FPU_regs(%r4) # %r4 <- reg save area
- jz .Lload_fpu_regs_fp_ctl # -> no VX, load FP regs
-.Lload_fpu_regs_vx_ctl:
- tm __SF_EMPTY+32+5(%r15),2 # test VX control
- jo .Lload_fpu_regs_vx
- oi __SF_EMPTY+32+5(%r15),2 # set VX control
- lctlg %c0,%c0,__SF_EMPTY+32(%r15)
+ jz .Lload_fpu_regs_fp # -> no VX, load FP regs
.Lload_fpu_regs_vx:
VLM %v0,%v15,0,%r4
.Lload_fpu_regs_vx_high:
VLM %v16,%v31,256,%r4
j .Lload_fpu_regs_done
-.Lload_fpu_regs_fp_ctl:
- tm __SF_EMPTY+32+5(%r15),2 # test VX control
- jz .Lload_fpu_regs_fp
- ni __SF_EMPTY+32+5(%r15),253 # clear VX control
- lctlg %c0,%c0,__SF_EMPTY+32(%r15)
.Lload_fpu_regs_fp:
ld 0,0(%r4)
ld 1,8(%r4)
@@ -854,16 +861,6 @@ load_fpu_regs:
br %r14
.Lload_fpu_regs_end:
-/* Test and set the vector enablement control in CR0.46 */
-ENTRY(__ctl_set_vx)
- stctg %c0,%c0,__SF_EMPTY(%r15)
- tm __SF_EMPTY+5(%r15),2
- bor %r14
- oi __SF_EMPTY+5(%r15),2
- lctlg %c0,%c0,__SF_EMPTY(%r15)
- br %r14
-.L__ctl_set_vx_end:
-
.L__critical_end:
/*
@@ -878,11 +875,11 @@ ENTRY(mcck_int_handler)
lg %r12,__LC_THREAD_INFO
larl %r13,cleanup_critical
lmg %r8,%r9,__LC_MCK_OLD_PSW
- tm __LC_MCCK_CODE,0x80 # system damage?
+ TSTMSK __LC_MCCK_CODE,MCCK_CODE_SYSTEM_DAMAGE
jo .Lmcck_panic # yes -> rest of mcck code invalid
lghi %r14,__LC_CPU_TIMER_SAVE_AREA
mvc __LC_MCCK_ENTER_TIMER(8),0(%r14)
- tm __LC_MCCK_CODE+5,0x02 # stored cpu timer value valid?
+ TSTMSK __LC_MCCK_CODE,MCCK_CODE_CPU_TIMER_VALID
jo 3f
la %r14,__LC_SYNC_ENTER_TIMER
clc 0(8,%r14),__LC_ASYNC_ENTER_TIMER
@@ -896,7 +893,7 @@ ENTRY(mcck_int_handler)
la %r14,__LC_LAST_UPDATE_TIMER
2: spt 0(%r14)
mvc __LC_MCCK_ENTER_TIMER(8),0(%r14)
-3: tm __LC_MCCK_CODE+2,0x09 # mwp + ia of old psw valid?
+3: TSTMSK __LC_MCCK_CODE,(MCCK_CODE_PSW_MWP_VALID|MCCK_CODE_PSW_IA_VALID)
jno .Lmcck_panic # no -> skip cleanup critical
SWITCH_ASYNC __LC_GPREGS_SAVE_AREA+64,__LC_MCCK_ENTER_TIMER
.Lmcck_skip:
@@ -916,7 +913,7 @@ ENTRY(mcck_int_handler)
la %r11,STACK_FRAME_OVERHEAD(%r1)
lgr %r15,%r1
ssm __LC_PGM_NEW_PSW # turn dat on, keep irqs off
- tm __LC_CPU_FLAGS+7,_CIF_MCCK_PENDING
+ TSTMSK __LC_CPU_FLAGS,_CIF_MCCK_PENDING
jno .Lmcck_return
TRACE_IRQS_OFF
brasl %r14,s390_handle_mcck
@@ -941,7 +938,10 @@ ENTRY(mcck_int_handler)
# PSW restart interrupt handler
#
ENTRY(restart_int_handler)
- stg %r15,__LC_SAVE_AREA_RESTART
+ TSTMSK __LC_MACHINE_FLAGS,MACHINE_FLAG_LPP
+ jz 0f
+ .insn s,0xb2800000,__LC_LPP
+0: stg %r15,__LC_SAVE_AREA_RESTART
lg %r15,__LC_RESTART_STACK
aghi %r15,-__PT_SIZE # create pt_regs on stack
xc 0(__PT_SIZE,%r15),0(%r15)
@@ -1019,10 +1019,6 @@ cleanup_critical:
jl 0f
clg %r9,BASED(.Lcleanup_table+104) # .Lload_fpu_regs_end
jl .Lcleanup_load_fpu_regs
- clg %r9,BASED(.Lcleanup_table+112) # __ctl_set_vx
- jl 0f
- clg %r9,BASED(.Lcleanup_table+120) # .L__ctl_set_vx_end
- jl .Lcleanup___ctl_set_vx
0: br %r14
.align 8
@@ -1041,8 +1037,6 @@ cleanup_critical:
.quad .Lsave_fpu_regs_end
.quad load_fpu_regs
.quad .Lload_fpu_regs_end
- .quad __ctl_set_vx
- .quad .L__ctl_set_vx_end
#if IS_ENABLED(CONFIG_KVM)
.Lcleanup_table_sie:
@@ -1051,10 +1045,7 @@ cleanup_critical:
.Lcleanup_sie:
lg %r9,__SF_EMPTY(%r15) # get control block pointer
- tm __LC_MACHINE_FLAGS+6,0x20 # MACHINE_FLAG_LPP
- jz 0f
- .insn s,0xb2800000,__SF_EMPTY+16(%r15)# set host id
-0: ni __SIE_PROG0C+3(%r9),0xfe # no longer in SIE
+ ni __SIE_PROG0C+3(%r9),0xfe # no longer in SIE
lctlg %c1,%c1,__LC_USER_ASCE # load primary asce
larl %r9,sie_exit # skip forward to sie_exit
br %r14
@@ -1206,7 +1197,7 @@ cleanup_critical:
.quad .Lpsw_idle_lpsw
.Lcleanup_save_fpu_regs:
- tm __LC_CPU_FLAGS+7,_CIF_FPU
+ TSTMSK __LC_CPU_FLAGS,_CIF_FPU
bor %r14
clg %r9,BASED(.Lcleanup_save_fpu_regs_done)
jhe 5f
@@ -1224,9 +1215,7 @@ cleanup_critical:
stfpc __THREAD_FPU_fpc(%r2)
1: # Load register save area and check if VX is active
lg %r3,__THREAD_FPU_regs(%r2)
- ltgr %r3,%r3
- jz 5f # no save area -> set CIF_FPU
- tm __THREAD_FPU_flags+3(%r2),FPU_USE_VX
+ TSTMSK __LC_MACHINE_FLAGS,MACHINE_FLAG_VX
jz 4f # no VX -> store FP regs
2: # Store vector registers (V0-V15)
VSTM %v0,%v15,0,%r3 # vstm 0,15,0(3)
@@ -1266,43 +1255,27 @@ cleanup_critical:
.quad .Lsave_fpu_regs_done
.Lcleanup_load_fpu_regs:
- tm __LC_CPU_FLAGS+7,_CIF_FPU
+ TSTMSK __LC_CPU_FLAGS,_CIF_FPU
bnor %r14
clg %r9,BASED(.Lcleanup_load_fpu_regs_done)
jhe 1f
clg %r9,BASED(.Lcleanup_load_fpu_regs_fp)
jhe 2f
- clg %r9,BASED(.Lcleanup_load_fpu_regs_fp_ctl)
- jhe 3f
clg %r9,BASED(.Lcleanup_load_fpu_regs_vx_high)
- jhe 4f
+ jhe 3f
clg %r9,BASED(.Lcleanup_load_fpu_regs_vx)
- jhe 5f
- clg %r9,BASED(.Lcleanup_load_fpu_regs_vx_ctl)
- jhe 6f
+ jhe 4f
lg %r4,__LC_CURRENT
aghi %r4,__TASK_thread
lfpc __THREAD_FPU_fpc(%r4)
- tm __THREAD_FPU_flags+3(%r4),FPU_USE_VX # VX-enabled task ?
+ TSTMSK __LC_MACHINE_FLAGS,MACHINE_FLAG_VX
lg %r4,__THREAD_FPU_regs(%r4) # %r4 <- reg save area
- jz 3f # -> no VX, load FP regs
-6: # Set VX-enablement control
- stctg %c0,%c0,__SF_EMPTY+32(%r15) # store CR0
- tm __SF_EMPTY+32+5(%r15),2 # test VX control
- jo 5f
- oi __SF_EMPTY+32+5(%r15),2 # set VX control
- lctlg %c0,%c0,__SF_EMPTY+32(%r15)
-5: # Load V0 ..V15 registers
+ jz 2f # -> no VX, load FP regs
+4: # Load V0 ..V15 registers
VLM %v0,%v15,0,%r4
-4: # Load V16..V31 registers
+3: # Load V16..V31 registers
VLM %v16,%v31,256,%r4
j 1f
-3: # Clear VX-enablement control for FP
- stctg %c0,%c0,__SF_EMPTY+32(%r15) # store CR0
- tm __SF_EMPTY+32+5(%r15),2 # test VX control
- jz 2f
- ni __SF_EMPTY+32+5(%r15),253 # clear VX control
- lctlg %c0,%c0,__SF_EMPTY+32(%r15)
2: # Load floating-point registers
ld 0,0(%r4)
ld 1,8(%r4)
@@ -1324,28 +1297,15 @@ cleanup_critical:
ni __LC_CPU_FLAGS+7,255-_CIF_FPU
lg %r9,48(%r11) # return from load_fpu_regs
br %r14
-.Lcleanup_load_fpu_regs_vx_ctl:
- .quad .Lload_fpu_regs_vx_ctl
.Lcleanup_load_fpu_regs_vx:
.quad .Lload_fpu_regs_vx
.Lcleanup_load_fpu_regs_vx_high:
.quad .Lload_fpu_regs_vx_high
-.Lcleanup_load_fpu_regs_fp_ctl:
- .quad .Lload_fpu_regs_fp_ctl
.Lcleanup_load_fpu_regs_fp:
.quad .Lload_fpu_regs_fp
.Lcleanup_load_fpu_regs_done:
.quad .Lload_fpu_regs_done
-.Lcleanup___ctl_set_vx:
- stctg %c0,%c0,__SF_EMPTY(%r15)
- tm __SF_EMPTY+5(%r15),2
- bor %r14
- oi __SF_EMPTY+5(%r15),2
- lctlg %c0,%c0,__SF_EMPTY(%r15)
- lg %r9,48(%r11) # return from __ctl_set_vx
- br %r14
-
/*
* Integer constants
*/
diff --git a/arch/s390/kernel/entry.h b/arch/s390/kernel/entry.h
index 834df047d..b7019ab74 100644
--- a/arch/s390/kernel/entry.h
+++ b/arch/s390/kernel/entry.h
@@ -16,13 +16,10 @@ void io_int_handler(void);
void mcck_int_handler(void);
void restart_int_handler(void);
void restart_call_handler(void);
-void psw_idle(struct s390_idle_data *, unsigned long);
asmlinkage long do_syscall_trace_enter(struct pt_regs *regs);
asmlinkage void do_syscall_trace_exit(struct pt_regs *regs);
-int alloc_vector_registers(struct task_struct *tsk);
-
void do_protection_exception(struct pt_regs *regs);
void do_dat_exception(struct pt_regs *regs);
diff --git a/arch/s390/kernel/head.S b/arch/s390/kernel/head.S
index 1255c6c53..301ee9c70 100644
--- a/arch/s390/kernel/head.S
+++ b/arch/s390/kernel/head.S
@@ -26,6 +26,7 @@
#include <asm/asm-offsets.h>
#include <asm/thread_info.h>
#include <asm/page.h>
+#include <asm/ptrace.h>
#define ARCH_OFFSET 4
@@ -59,19 +60,6 @@ __HEAD
.long 0x020006e0,0x20000050
.org 0x200
-#
-# subroutine to set architecture mode
-#
-.Lsetmode:
- mvi __LC_AR_MODE_ID,1 # set esame flag
- slr %r0,%r0 # set cpuid to zero
- lhi %r1,2 # mode 2 = esame (dump)
- sigp %r1,%r0,0x12 # switch to esame mode
- bras %r13,0f
- .fill 16,4,0x0
-0: lmh %r0,%r15,0(%r13) # clear high-order half of gprs
- sam31 # switch to 31 bit addressing mode
- br %r14
#
# subroutine to wait for end I/O
@@ -159,7 +147,14 @@ __HEAD
.long 0x02200050,0x00000000
iplstart:
- bas %r14,.Lsetmode # Immediately switch to 64 bit mode
+ mvi __LC_AR_MODE_ID,1 # set esame flag
+ slr %r0,%r0 # set cpuid to zero
+ lhi %r1,2 # mode 2 = esame (dump)
+ sigp %r1,%r0,0x12 # switch to esame mode
+ bras %r13,0f
+ .fill 16,4,0x0
+0: lmh %r0,%r15,0(%r13) # clear high-order half of gprs
+ sam31 # switch to 31 bit addressing mode
lh %r1,0xb8 # test if subchannel number
bct %r1,.Lnoload # is valid
l %r1,0xb8 # load ipl subchannel number
@@ -269,71 +264,6 @@ iplstart:
.Lcpuid:.fill 8,1,0
#
-# SALIPL loader support. Based on a patch by Rob van der Heij.
-# This entry point is called directly from the SALIPL loader and
-# doesn't need a builtin ipl record.
-#
- .org 0x800
-ENTRY(start)
- stm %r0,%r15,0x07b0 # store registers
- bas %r14,.Lsetmode # Immediately switch to 64 bit mode
- basr %r12,%r0
-.base:
- l %r11,.parm
- l %r8,.cmd # pointer to command buffer
-
- ltr %r9,%r9 # do we have SALIPL parameters?
- bp .sk8x8
-
- mvc 0(64,%r8),0x00b0 # copy saved registers
- xc 64(240-64,%r8),0(%r8) # remainder of buffer
- tr 0(64,%r8),.lowcase
- b .gotr
-.sk8x8:
- mvc 0(240,%r8),0(%r9) # copy iplparms into buffer
-.gotr:
- slr %r0,%r0
- st %r0,INITRD_SIZE+ARCH_OFFSET-PARMAREA(%r11)
- st %r0,INITRD_START+ARCH_OFFSET-PARMAREA(%r11)
- j startup # continue with startup
-.cmd: .long COMMAND_LINE # address of command line buffer
-.parm: .long PARMAREA
-.lowcase:
- .byte 0x00,0x01,0x02,0x03,0x04,0x05,0x06,0x07
- .byte 0x08,0x09,0x0a,0x0b,0x0c,0x0d,0x0e,0x0f
- .byte 0x10,0x11,0x12,0x13,0x14,0x15,0x16,0x17
- .byte 0x18,0x19,0x1a,0x1b,0x1c,0x1d,0x1e,0x1f
- .byte 0x20,0x21,0x22,0x23,0x24,0x25,0x26,0x27
- .byte 0x28,0x29,0x2a,0x2b,0x2c,0x2d,0x2e,0x2f
- .byte 0x30,0x31,0x32,0x33,0x34,0x35,0x36,0x37
- .byte 0x38,0x39,0x3a,0x3b,0x3c,0x3d,0x3e,0x3f
- .byte 0x40,0x41,0x42,0x43,0x44,0x45,0x46,0x47
- .byte 0x48,0x49,0x4a,0x4b,0x4c,0x4d,0x4e,0x4f
- .byte 0x50,0x51,0x52,0x53,0x54,0x55,0x56,0x57
- .byte 0x58,0x59,0x5a,0x5b,0x5c,0x5d,0x5e,0x5f
- .byte 0x60,0x61,0x62,0x63,0x64,0x65,0x66,0x67
- .byte 0x68,0x69,0x6a,0x6b,0x6c,0x6d,0x6e,0x6f
- .byte 0x70,0x71,0x72,0x73,0x74,0x75,0x76,0x77
- .byte 0x78,0x79,0x7a,0x7b,0x7c,0x7d,0x7e,0x7f
-
- .byte 0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87
- .byte 0x88,0x89,0x8a,0x8b,0x8c,0x8d,0x8e,0x8f
- .byte 0x90,0x91,0x92,0x93,0x94,0x95,0x96,0x97
- .byte 0x98,0x99,0x9a,0x9b,0x9c,0x9d,0x9e,0x9f
- .byte 0xa0,0xa1,0xa2,0xa3,0xa4,0xa5,0xa6,0xa7
- .byte 0xa8,0xa9,0xaa,0xab,0xac,0xad,0xae,0xaf
- .byte 0xb0,0xb1,0xb2,0xb3,0xb4,0xb5,0xb6,0xb7
- .byte 0xb8,0xb9,0xba,0xbb,0xbc,0xbd,0xbe,0xbf
- .byte 0xc0,0x81,0x82,0x83,0x84,0x85,0x86,0x87 # .abcdefg
- .byte 0x88,0x89,0xca,0xcb,0xcc,0xcd,0xce,0xcf # hi
- .byte 0xd0,0x91,0x92,0x93,0x94,0x95,0x96,0x97 # .jklmnop
- .byte 0x98,0x99,0xda,0xdb,0xdc,0xdd,0xde,0xdf # qr
- .byte 0xe0,0xe1,0xa2,0xa3,0xa4,0xa5,0xa6,0xa7 # ..stuvwx
- .byte 0xa8,0xa9,0xea,0xeb,0xec,0xed,0xee,0xef # yz
- .byte 0xf0,0xf1,0xf2,0xf3,0xf4,0xf5,0xf6,0xf7
- .byte 0xf8,0xf9,0xfa,0xfb,0xfc,0xfd,0xfe,0xff
-
-#
# startup-code at 0x10000, running in absolute addressing mode
# this is called either by the ipl loader or directly by PSW restart
# or linload or SALIPL
@@ -364,7 +294,7 @@ ENTRY(startup_kdump)
bras %r13,0f
.fill 16,4,0x0
0: lmh %r0,%r15,0(%r13) # clear high-order half of gprs
- sam31 # switch to 31 bit addressing mode
+ sam64 # switch to 64 bit addressing mode
basr %r13,0 # get base
.LPG0:
xc 0x200(256),0x200 # partially clear lowcore
@@ -395,7 +325,7 @@ ENTRY(startup_kdump)
jnz 1b
j 4f
2: l %r15,.Lstack-.LPG0(%r13)
- ahi %r15,-96
+ ahi %r15,-STACK_FRAME_OVERHEAD
la %r2,.Lals_string-.LPG0(%r13)
l %r3,.Lsclp_print-.LPG0(%r13)
basr %r14,%r3
@@ -429,8 +359,7 @@ ENTRY(startup_kdump)
.long 1, 0xc0000000
#endif
4:
- /* Continue with 64bit startup code in head64.S */
- sam64 # switch to 64 bit mode
+ /* Continue with startup code in head64.S */
jg startup_continue
.align 8
diff --git a/arch/s390/kernel/head64.S b/arch/s390/kernel/head64.S
index d7c005075..58b719fa8 100644
--- a/arch/s390/kernel/head64.S
+++ b/arch/s390/kernel/head64.S
@@ -16,7 +16,12 @@
__HEAD
ENTRY(startup_continue)
- larl %r1,sched_clock_base_cc
+ tm __LC_STFL_FAC_LIST+6,0x80 # LPP available ?
+ jz 0f
+ xc __LC_LPP+1(7,0),__LC_LPP+1 # clear lpp and current_pid
+ mvi __LC_LPP,0x80 # and set LPP_MAGIC
+ .insn s,0xb2800000,__LC_LPP # load program parameter
+0: larl %r1,sched_clock_base_cc
mvc 0(8,%r1),__LC_LAST_UPDATE_CLOCK
larl %r13,.LPG1 # get base
lctlg %c0,%c15,.Lctl-.LPG1(%r13) # load control registers
diff --git a/arch/s390/kernel/ipl.c b/arch/s390/kernel/ipl.c
index 52fbef91d..b1f0a90f9 100644
--- a/arch/s390/kernel/ipl.c
+++ b/arch/s390/kernel/ipl.c
@@ -17,6 +17,7 @@
#include <linux/gfp.h>
#include <linux/crash_dump.h>
#include <linux/debug_locks.h>
+#include <asm/diag.h>
#include <asm/ipl.h>
#include <asm/smp.h>
#include <asm/setup.h>
@@ -120,6 +121,7 @@ static char *dump_type_str(enum dump_type type)
* Must be in data section since the bss section
* is not cleared when these are accessed.
*/
+static u8 ipl_ssid __attribute__((__section__(".data"))) = 0;
static u16 ipl_devno __attribute__((__section__(".data"))) = 0;
u32 ipl_flags __attribute__((__section__(".data"))) = 0;
@@ -165,7 +167,7 @@ static struct ipl_parameter_block *dump_block_ccw;
static struct sclp_ipl_info sclp_ipl_info;
-int diag308(unsigned long subcode, void *addr)
+static inline int __diag308(unsigned long subcode, void *addr)
{
register unsigned long _addr asm("0") = (unsigned long) addr;
register unsigned long _rc asm("1") = 0;
@@ -178,6 +180,12 @@ int diag308(unsigned long subcode, void *addr)
: "d" (subcode) : "cc", "memory");
return _rc;
}
+
+int diag308(unsigned long subcode, void *addr)
+{
+ diag_stat_inc(DIAG_STAT_X308);
+ return __diag308(subcode, addr);
+}
EXPORT_SYMBOL_GPL(diag308);
/* SYSFS */
@@ -190,6 +198,33 @@ static ssize_t sys_##_prefix##_##_name##_show(struct kobject *kobj, \
return snprintf(page, PAGE_SIZE, _format, ##args); \
}
+#define IPL_ATTR_CCW_STORE_FN(_prefix, _name, _ipl_blk) \
+static ssize_t sys_##_prefix##_##_name##_store(struct kobject *kobj, \
+ struct kobj_attribute *attr, \
+ const char *buf, size_t len) \
+{ \
+ unsigned long long ssid, devno; \
+ \
+ if (sscanf(buf, "0.%llx.%llx\n", &ssid, &devno) != 2) \
+ return -EINVAL; \
+ \
+ if (ssid > __MAX_SSID || devno > __MAX_SUBCHANNEL) \
+ return -EINVAL; \
+ \
+ _ipl_blk.ssid = ssid; \
+ _ipl_blk.devno = devno; \
+ return len; \
+}
+
+#define DEFINE_IPL_CCW_ATTR_RW(_prefix, _name, _ipl_blk) \
+IPL_ATTR_SHOW_FN(_prefix, _name, "0.%x.%04x\n", \
+ _ipl_blk.ssid, _ipl_blk.devno); \
+IPL_ATTR_CCW_STORE_FN(_prefix, _name, _ipl_blk); \
+static struct kobj_attribute sys_##_prefix##_##_name##_attr = \
+ __ATTR(_name, (S_IRUGO | S_IWUSR), \
+ sys_##_prefix##_##_name##_show, \
+ sys_##_prefix##_##_name##_store) \
+
#define DEFINE_IPL_ATTR_RO(_prefix, _name, _format, _value) \
IPL_ATTR_SHOW_FN(_prefix, _name, _format, _value) \
static struct kobj_attribute sys_##_prefix##_##_name##_attr = \
@@ -388,7 +423,7 @@ static ssize_t sys_ipl_device_show(struct kobject *kobj,
switch (ipl_info.type) {
case IPL_TYPE_CCW:
- return sprintf(page, "0.0.%04x\n", ipl_devno);
+ return sprintf(page, "0.%x.%04x\n", ipl_ssid, ipl_devno);
case IPL_TYPE_FCP:
case IPL_TYPE_FCP_DUMP:
return sprintf(page, "0.0.%04x\n", ipl->ipl_info.fcp.devno);
@@ -680,21 +715,14 @@ static ssize_t reipl_fcp_scpdata_write(struct file *filp, struct kobject *kobj,
struct bin_attribute *attr,
char *buf, loff_t off, size_t count)
{
+ size_t scpdata_len = count;
size_t padding;
- size_t scpdata_len;
-
- if (off < 0)
- return -EINVAL;
- if (off >= DIAG308_SCPDATA_SIZE)
- return -ENOSPC;
- if (count > DIAG308_SCPDATA_SIZE - off)
- count = DIAG308_SCPDATA_SIZE - off;
-
- memcpy(reipl_block_fcp->ipl_info.fcp.scp_data, buf + off, count);
- scpdata_len = off + count;
+ if (off)
+ return -EINVAL;
+ memcpy(reipl_block_fcp->ipl_info.fcp.scp_data, buf, count);
if (scpdata_len % 8) {
padding = 8 - (scpdata_len % 8);
memset(reipl_block_fcp->ipl_info.fcp.scp_data + scpdata_len,
@@ -710,7 +738,7 @@ static ssize_t reipl_fcp_scpdata_write(struct file *filp, struct kobject *kobj,
}
static struct bin_attribute sys_reipl_fcp_scp_data_attr =
__BIN_ATTR(scp_data, (S_IRUGO | S_IWUSR), reipl_fcp_scpdata_read,
- reipl_fcp_scpdata_write, PAGE_SIZE);
+ reipl_fcp_scpdata_write, DIAG308_SCPDATA_SIZE);
static struct bin_attribute *reipl_fcp_bin_attrs[] = {
&sys_reipl_fcp_scp_data_attr,
@@ -807,9 +835,7 @@ static struct attribute_group reipl_fcp_attr_group = {
};
/* CCW reipl device attributes */
-
-DEFINE_IPL_ATTR_RW(reipl_ccw, device, "0.0.%04llx\n", "0.0.%llx\n",
- reipl_block_ccw->ipl_info.ccw.devno);
+DEFINE_IPL_CCW_ATTR_RW(reipl_ccw, device, reipl_block_ccw->ipl_info.ccw);
/* NSS wrapper */
static ssize_t reipl_nss_loadparm_show(struct kobject *kobj,
@@ -1049,8 +1075,8 @@ static void __reipl_run(void *unused)
switch (reipl_method) {
case REIPL_METHOD_CCW_CIO:
+ devid.ssid = reipl_block_ccw->ipl_info.ccw.ssid;
devid.devno = reipl_block_ccw->ipl_info.ccw.devno;
- devid.ssid = 0;
reipl_ccw_dev(&devid);
break;
case REIPL_METHOD_CCW_VM:
@@ -1185,6 +1211,7 @@ static int __init reipl_ccw_init(void)
reipl_block_ccw_init(reipl_block_ccw);
if (ipl_info.type == IPL_TYPE_CCW) {
+ reipl_block_ccw->ipl_info.ccw.ssid = ipl_ssid;
reipl_block_ccw->ipl_info.ccw.devno = ipl_devno;
reipl_block_ccw_fill_parms(reipl_block_ccw);
}
@@ -1329,9 +1356,7 @@ static struct attribute_group dump_fcp_attr_group = {
};
/* CCW dump device attributes */
-
-DEFINE_IPL_ATTR_RW(dump_ccw, device, "0.0.%04llx\n", "0.0.%llx\n",
- dump_block_ccw->ipl_info.ccw.devno);
+DEFINE_IPL_CCW_ATTR_RW(dump_ccw, device, dump_block_ccw->ipl_info.ccw);
static struct attribute *dump_ccw_attrs[] = {
&sys_dump_ccw_device_attr.attr,
@@ -1411,8 +1436,8 @@ static void __dump_run(void *unused)
switch (dump_method) {
case DUMP_METHOD_CCW_CIO:
+ devid.ssid = dump_block_ccw->ipl_info.ccw.ssid;
devid.devno = dump_block_ccw->ipl_info.ccw.devno;
- devid.ssid = 0;
reipl_ccw_dev(&devid);
break;
case DUMP_METHOD_CCW_VM:
@@ -1932,14 +1957,14 @@ void __init setup_ipl(void)
ipl_info.type = get_ipl_type();
switch (ipl_info.type) {
case IPL_TYPE_CCW:
+ ipl_info.data.ccw.dev_id.ssid = ipl_ssid;
ipl_info.data.ccw.dev_id.devno = ipl_devno;
- ipl_info.data.ccw.dev_id.ssid = 0;
break;
case IPL_TYPE_FCP:
case IPL_TYPE_FCP_DUMP:
+ ipl_info.data.fcp.dev_id.ssid = 0;
ipl_info.data.fcp.dev_id.devno =
IPL_PARMBLOCK_START->ipl_info.fcp.devno;
- ipl_info.data.fcp.dev_id.ssid = 0;
ipl_info.data.fcp.wwpn = IPL_PARMBLOCK_START->ipl_info.fcp.wwpn;
ipl_info.data.fcp.lun = IPL_PARMBLOCK_START->ipl_info.fcp.lun;
break;
@@ -1971,6 +1996,7 @@ void __init ipl_save_parameters(void)
if (cio_get_iplinfo(&iplinfo))
return;
+ ipl_ssid = iplinfo.ssid;
ipl_devno = iplinfo.devno;
ipl_flags |= IPL_DEVNO_VALID;
if (!iplinfo.is_qdio)
diff --git a/arch/s390/kernel/irq.c b/arch/s390/kernel/irq.c
index e9d9addfa..f41d5208a 100644
--- a/arch/s390/kernel/irq.c
+++ b/arch/s390/kernel/irq.c
@@ -69,7 +69,6 @@ static const struct irq_class irqclass_sub_desc[] = {
{.irq = IRQEXT_IUC, .name = "IUC", .desc = "[EXT] IUCV"},
{.irq = IRQEXT_CMS, .name = "CMS", .desc = "[EXT] CPU-Measurement: Sampling"},
{.irq = IRQEXT_CMC, .name = "CMC", .desc = "[EXT] CPU-Measurement: Counter"},
- {.irq = IRQEXT_CMR, .name = "CMR", .desc = "[EXT] CPU-Measurement: RI"},
{.irq = IRQEXT_FTP, .name = "FTP", .desc = "[EXT] HMC FTP Service"},
{.irq = IRQIO_CIO, .name = "CIO", .desc = "[I/O] Common I/O Layer Interrupt"},
{.irq = IRQIO_QAI, .name = "QAI", .desc = "[I/O] QDIO Adapter Interrupt"},
diff --git a/arch/s390/kernel/nmi.c b/arch/s390/kernel/nmi.c
index 0ae6f8e74..07302ce37 100644
--- a/arch/s390/kernel/nmi.c
+++ b/arch/s390/kernel/nmi.c
@@ -21,19 +21,20 @@
#include <asm/nmi.h>
#include <asm/crw.h>
#include <asm/switch_to.h>
-#include <asm/fpu-internal.h>
#include <asm/ctl_reg.h>
struct mcck_struct {
- int kill_task;
- int channel_report;
- int warning;
- unsigned long long mcck_code;
+ unsigned int kill_task : 1;
+ unsigned int channel_report : 1;
+ unsigned int warning : 1;
+ unsigned int etr_queue : 1;
+ unsigned int stp_queue : 1;
+ unsigned long mcck_code;
};
static DEFINE_PER_CPU(struct mcck_struct, cpu_mcck);
-static void s390_handle_damage(char *msg)
+static void s390_handle_damage(void)
{
smp_send_stop();
disabled_wait((unsigned long) __builtin_return_address(0));
@@ -81,10 +82,14 @@ void s390_handle_mcck(void)
if (xchg(&mchchk_wng_posted, 1) == 0)
kill_cad_pid(SIGPWR, 1);
}
+ if (mcck.etr_queue)
+ etr_queue_work();
+ if (mcck.stp_queue)
+ stp_queue_work();
if (mcck.kill_task) {
local_irq_enable();
printk(KERN_EMERG "mcck: Terminating task because of machine "
- "malfunction (code 0x%016llx).\n", mcck.mcck_code);
+ "malfunction (code 0x%016lx).\n", mcck.mcck_code);
printk(KERN_EMERG "mcck: task: %s, pid: %d.\n",
current->comm, current->pid);
do_exit(SIGSEGV);
@@ -96,7 +101,7 @@ EXPORT_SYMBOL_GPL(s390_handle_mcck);
* returns 0 if all registers could be validated
* returns 1 otherwise
*/
-static int notrace s390_revalidate_registers(struct mci *mci)
+static int notrace s390_validate_registers(union mci mci)
{
int kill_task;
u64 zero;
@@ -105,14 +110,14 @@ static int notrace s390_revalidate_registers(struct mci *mci)
kill_task = 0;
zero = 0;
- if (!mci->gr) {
+ if (!mci.gr) {
/*
* General purpose registers couldn't be restored and have
* unknown contents. Process needs to be terminated.
*/
kill_task = 1;
}
- if (!mci->fp) {
+ if (!mci.fp) {
/*
* Floating point registers can't be restored and
* therefore the process needs to be terminated.
@@ -121,7 +126,7 @@ static int notrace s390_revalidate_registers(struct mci *mci)
}
fpt_save_area = &S390_lowcore.floating_pt_save_area;
fpt_creg_save_area = &S390_lowcore.fpt_creg_save_area;
- if (!mci->fc) {
+ if (!mci.fc) {
/*
* Floating point control register can't be restored.
* Task will be terminated.
@@ -132,7 +137,7 @@ static int notrace s390_revalidate_registers(struct mci *mci)
asm volatile("lfpc 0(%0)" : : "a" (fpt_creg_save_area));
if (!MACHINE_HAS_VX) {
- /* Revalidate floating point registers */
+ /* Validate floating point registers */
asm volatile(
" ld 0,0(%0)\n"
" ld 1,8(%0)\n"
@@ -152,10 +157,10 @@ static int notrace s390_revalidate_registers(struct mci *mci)
" ld 15,120(%0)\n"
: : "a" (fpt_save_area));
} else {
- /* Revalidate vector registers */
+ /* Validate vector registers */
union ctlreg0 cr0;
- if (!mci->vr) {
+ if (!mci.vr) {
/*
* Vector registers can't be restored and therefore
* the process needs to be terminated.
@@ -173,38 +178,38 @@ static int notrace s390_revalidate_registers(struct mci *mci)
&S390_lowcore.vector_save_area) : "1");
__ctl_load(S390_lowcore.cregs_save_area[0], 0, 0);
}
- /* Revalidate access registers */
+ /* Validate access registers */
asm volatile(
" lam 0,15,0(%0)"
: : "a" (&S390_lowcore.access_regs_save_area));
- if (!mci->ar) {
+ if (!mci.ar) {
/*
* Access registers have unknown contents.
* Terminating task.
*/
kill_task = 1;
}
- /* Revalidate control registers */
- if (!mci->cr) {
+ /* Validate control registers */
+ if (!mci.cr) {
/*
* Control registers have unknown contents.
* Can't recover and therefore stopping machine.
*/
- s390_handle_damage("invalid control registers.");
+ s390_handle_damage();
} else {
asm volatile(
" lctlg 0,15,0(%0)"
: : "a" (&S390_lowcore.cregs_save_area));
}
/*
- * We don't even try to revalidate the TOD register, since we simply
+ * We don't even try to validate the TOD register, since we simply
* can't write something sensible into that register.
*/
/*
- * See if we can revalidate the TOD programmable register with its
+ * See if we can validate the TOD programmable register with its
* old contents (should be zero) otherwise set it to zero.
*/
- if (!mci->pr)
+ if (!mci.pr)
asm volatile(
" sr 0,0\n"
" sckpf"
@@ -215,17 +220,17 @@ static int notrace s390_revalidate_registers(struct mci *mci)
" sckpf"
: : "a" (&S390_lowcore.tod_progreg_save_area)
: "0", "cc");
- /* Revalidate clock comparator register */
+ /* Validate clock comparator register */
set_clock_comparator(S390_lowcore.clock_comparator);
/* Check if old PSW is valid */
- if (!mci->wp)
+ if (!mci.wp)
/*
* Can't tell if we come from user or kernel mode
* -> stopping machine.
*/
- s390_handle_damage("old psw invalid.");
+ s390_handle_damage();
- if (!mci->ms || !mci->pm || !mci->ia)
+ if (!mci.ms || !mci.pm || !mci.ia)
kill_task = 1;
return kill_task;
@@ -249,21 +254,21 @@ void notrace s390_do_machine_check(struct pt_regs *regs)
static unsigned long long last_ipd;
struct mcck_struct *mcck;
unsigned long long tmp;
- struct mci *mci;
+ union mci mci;
int umode;
nmi_enter();
inc_irq_stat(NMI_NMI);
- mci = (struct mci *) &S390_lowcore.mcck_interruption_code;
+ mci.val = S390_lowcore.mcck_interruption_code;
mcck = this_cpu_ptr(&cpu_mcck);
umode = user_mode(regs);
- if (mci->sd) {
+ if (mci.sd) {
/* System damage -> stopping machine */
- s390_handle_damage("received system damage machine check.");
+ s390_handle_damage();
}
- if (mci->pd) {
- if (mci->b) {
+ if (mci.pd) {
+ if (mci.b) {
/* Processing backup -> verify if we can survive this */
u64 z_mcic, o_mcic, t_mcic;
z_mcic = (1ULL<<63 | 1ULL<<59 | 1ULL<<29);
@@ -271,12 +276,11 @@ void notrace s390_do_machine_check(struct pt_regs *regs)
1ULL<<36 | 1ULL<<35 | 1ULL<<34 | 1ULL<<32 |
1ULL<<30 | 1ULL<<21 | 1ULL<<20 | 1ULL<<17 |
1ULL<<16);
- t_mcic = *(u64 *)mci;
+ t_mcic = mci.val;
if (((t_mcic & z_mcic) != 0) ||
((t_mcic & o_mcic) != o_mcic)) {
- s390_handle_damage("processing backup machine "
- "check with damage.");
+ s390_handle_damage();
}
/*
@@ -291,64 +295,62 @@ void notrace s390_do_machine_check(struct pt_regs *regs)
ipd_count = 1;
last_ipd = tmp;
if (ipd_count == MAX_IPD_COUNT)
- s390_handle_damage("too many ipd retries.");
+ s390_handle_damage();
spin_unlock(&ipd_lock);
} else {
/* Processing damage -> stopping machine */
- s390_handle_damage("received instruction processing "
- "damage machine check.");
+ s390_handle_damage();
}
}
- if (s390_revalidate_registers(mci)) {
+ if (s390_validate_registers(mci)) {
if (umode) {
/*
* Couldn't restore all register contents while in
* user mode -> mark task for termination.
*/
mcck->kill_task = 1;
- mcck->mcck_code = *(unsigned long long *) mci;
+ mcck->mcck_code = mci.val;
set_cpu_flag(CIF_MCCK_PENDING);
} else {
/*
* Couldn't restore all register contents while in
* kernel mode -> stopping machine.
*/
- s390_handle_damage("unable to revalidate registers.");
+ s390_handle_damage();
}
}
- if (mci->cd) {
+ if (mci.cd) {
/* Timing facility damage */
- s390_handle_damage("TOD clock damaged");
+ s390_handle_damage();
}
- if (mci->ed && mci->ec) {
+ if (mci.ed && mci.ec) {
/* External damage */
if (S390_lowcore.external_damage_code & (1U << ED_ETR_SYNC))
- etr_sync_check();
+ mcck->etr_queue |= etr_sync_check();
if (S390_lowcore.external_damage_code & (1U << ED_ETR_SWITCH))
- etr_switch_to_local();
+ mcck->etr_queue |= etr_switch_to_local();
if (S390_lowcore.external_damage_code & (1U << ED_STP_SYNC))
- stp_sync_check();
+ mcck->stp_queue |= stp_sync_check();
if (S390_lowcore.external_damage_code & (1U << ED_STP_ISLAND))
- stp_island_check();
+ mcck->stp_queue |= stp_island_check();
+ if (mcck->etr_queue || mcck->stp_queue)
+ set_cpu_flag(CIF_MCCK_PENDING);
}
- if (mci->se)
+ if (mci.se)
/* Storage error uncorrected */
- s390_handle_damage("received storage error uncorrected "
- "machine check.");
- if (mci->ke)
+ s390_handle_damage();
+ if (mci.ke)
/* Storage key-error uncorrected */
- s390_handle_damage("received storage key-error uncorrected "
- "machine check.");
- if (mci->ds && mci->fa)
+ s390_handle_damage();
+ if (mci.ds && mci.fa)
/* Storage degradation */
- s390_handle_damage("received storage degradation machine "
- "check.");
- if (mci->cp) {
+ s390_handle_damage();
+ if (mci.cp) {
/* Channel report word pending */
mcck->channel_report = 1;
set_cpu_flag(CIF_MCCK_PENDING);
}
- if (mci->w) {
+ if (mci.w) {
/* Warning pending */
mcck->warning = 1;
set_cpu_flag(CIF_MCCK_PENDING);
diff --git a/arch/s390/kernel/perf_cpum_cf.c b/arch/s390/kernel/perf_cpum_cf.c
index a9563409c..929c147e0 100644
--- a/arch/s390/kernel/perf_cpum_cf.c
+++ b/arch/s390/kernel/perf_cpum_cf.c
@@ -72,6 +72,7 @@ struct cpu_hw_events {
atomic_t ctr_set[CPUMF_CTR_SET_MAX];
u64 state, tx_state;
unsigned int flags;
+ unsigned int txn_flags;
};
static DEFINE_PER_CPU(struct cpu_hw_events, cpu_hw_events) = {
.ctr_set = {
@@ -82,6 +83,7 @@ static DEFINE_PER_CPU(struct cpu_hw_events, cpu_hw_events) = {
},
.state = 0,
.flags = 0,
+ .txn_flags = 0,
};
static int get_counter_set(u64 event)
@@ -538,7 +540,7 @@ static int cpumf_pmu_add(struct perf_event *event, int flags)
* For group events transaction, the authorization check is
* done in cpumf_pmu_commit_txn().
*/
- if (!(cpuhw->flags & PERF_EVENT_TXN))
+ if (!(cpuhw->txn_flags & PERF_PMU_TXN_ADD))
if (validate_ctr_auth(&event->hw))
return -ENOENT;
@@ -576,13 +578,22 @@ static void cpumf_pmu_del(struct perf_event *event, int flags)
/*
* Start group events scheduling transaction.
* Set flags to perform a single test at commit time.
+ *
+ * We only support PERF_PMU_TXN_ADD transactions. Save the
+ * transaction flags but otherwise ignore non-PERF_PMU_TXN_ADD
+ * transactions.
*/
-static void cpumf_pmu_start_txn(struct pmu *pmu)
+static void cpumf_pmu_start_txn(struct pmu *pmu, unsigned int txn_flags)
{
struct cpu_hw_events *cpuhw = this_cpu_ptr(&cpu_hw_events);
+ WARN_ON_ONCE(cpuhw->txn_flags); /* txn already in flight */
+
+ cpuhw->txn_flags = txn_flags;
+ if (txn_flags & ~PERF_PMU_TXN_ADD)
+ return;
+
perf_pmu_disable(pmu);
- cpuhw->flags |= PERF_EVENT_TXN;
cpuhw->tx_state = cpuhw->state;
}
@@ -593,11 +604,18 @@ static void cpumf_pmu_start_txn(struct pmu *pmu)
*/
static void cpumf_pmu_cancel_txn(struct pmu *pmu)
{
+ unsigned int txn_flags;
struct cpu_hw_events *cpuhw = this_cpu_ptr(&cpu_hw_events);
+ WARN_ON_ONCE(!cpuhw->txn_flags); /* no txn in flight */
+
+ txn_flags = cpuhw->txn_flags;
+ cpuhw->txn_flags = 0;
+ if (txn_flags & ~PERF_PMU_TXN_ADD)
+ return;
+
WARN_ON(cpuhw->tx_state != cpuhw->state);
- cpuhw->flags &= ~PERF_EVENT_TXN;
perf_pmu_enable(pmu);
}
@@ -611,13 +629,20 @@ static int cpumf_pmu_commit_txn(struct pmu *pmu)
struct cpu_hw_events *cpuhw = this_cpu_ptr(&cpu_hw_events);
u64 state;
+ WARN_ON_ONCE(!cpuhw->txn_flags); /* no txn in flight */
+
+ if (cpuhw->txn_flags & ~PERF_PMU_TXN_ADD) {
+ cpuhw->txn_flags = 0;
+ return 0;
+ }
+
/* check if the updated state can be scheduled */
state = cpuhw->state & ~((1 << CPUMF_LCCTL_ENABLE_SHIFT) - 1);
state >>= CPUMF_LCCTL_ENABLE_SHIFT;
if ((state & cpuhw->info.auth_ctl) != state)
return -ENOENT;
- cpuhw->flags &= ~PERF_EVENT_TXN;
+ cpuhw->txn_flags = 0;
perf_pmu_enable(pmu);
return 0;
}
diff --git a/arch/s390/kernel/perf_cpum_sf.c b/arch/s390/kernel/perf_cpum_sf.c
index b973972f6..3d8da1e74 100644
--- a/arch/s390/kernel/perf_cpum_sf.c
+++ b/arch/s390/kernel/perf_cpum_sf.c
@@ -1019,11 +1019,13 @@ static int perf_push_sample(struct perf_event *event, struct sf_raw_sample *sfr)
break;
}
- /* The host-program-parameter (hpp) contains the pid of
- * the CPU thread as set by sie64a() in entry.S.
- * If non-zero assume a guest sample.
+ /*
+ * A non-zero guest program parameter indicates a guest
+ * sample.
+ * Note that some early samples might be misaccounted to
+ * the host.
*/
- if (sfr->basic.hpp)
+ if (sfr->basic.gpp)
sde_regs->in_guest = 1;
overflow = 0;
diff --git a/arch/s390/kernel/process.c b/arch/s390/kernel/process.c
index f2dac9f07..114ee8b96 100644
--- a/arch/s390/kernel/process.c
+++ b/arch/s390/kernel/process.c
@@ -23,6 +23,7 @@
#include <linux/kprobes.h>
#include <linux/random.h>
#include <linux/module.h>
+#include <linux/init_task.h>
#include <asm/io.h>
#include <asm/processor.h>
#include <asm/vtimer.h>
@@ -36,6 +37,9 @@
asmlinkage void ret_from_fork(void) asm ("ret_from_fork");
+/* FPU save area for the init task */
+__vector128 init_task_fpu_regs[__NUM_VXRS] __init_task_data;
+
/*
* Return saved PC of a blocked thread. used in kernel/sched.
* resume in entry.S does not create a new stack frame, it
@@ -87,31 +91,29 @@ void arch_release_task_struct(struct task_struct *tsk)
int arch_dup_task_struct(struct task_struct *dst, struct task_struct *src)
{
+ size_t fpu_regs_size;
+
*dst = *src;
- /* Set up a new floating-point register save area */
- dst->thread.fpu.fpc = 0;
- dst->thread.fpu.flags = 0; /* Always start with VX disabled */
- dst->thread.fpu.fprs = kzalloc(sizeof(freg_t) * __NUM_FPRS,
- GFP_KERNEL|__GFP_REPEAT);
- if (!dst->thread.fpu.fprs)
+ /*
+ * If the vector extension is available, it is enabled for all tasks,
+ * and, thus, the FPU register save area must be allocated accordingly.
+ */
+ fpu_regs_size = MACHINE_HAS_VX ? sizeof(__vector128) * __NUM_VXRS
+ : sizeof(freg_t) * __NUM_FPRS;
+ dst->thread.fpu.regs = kzalloc(fpu_regs_size, GFP_KERNEL|__GFP_REPEAT);
+ if (!dst->thread.fpu.regs)
return -ENOMEM;
/*
* Save the floating-point or vector register state of the current
- * task. The state is not saved for early kernel threads, for example,
- * the init_task, which do not have an allocated save area.
- * The CIF_FPU flag is set in any case to lazy clear or restore a saved
- * state when switching to a different task or returning to user space.
+ * task and set the CIF_FPU flag to lazy restore the FPU register
+ * state when returning to user space.
*/
save_fpu_regs();
dst->thread.fpu.fpc = current->thread.fpu.fpc;
- if (is_vx_task(current))
- convert_vx_to_fp(dst->thread.fpu.fprs,
- current->thread.fpu.vxrs);
- else
- memcpy(dst->thread.fpu.fprs, current->thread.fpu.fprs,
- sizeof(freg_t) * __NUM_FPRS);
+ memcpy(dst->thread.fpu.regs, current->thread.fpu.regs, fpu_regs_size);
+
return 0;
}
@@ -169,7 +171,6 @@ int copy_thread(unsigned long clone_flags, unsigned long new_stackp,
/* Don't copy runtime instrumentation info */
p->thread.ri_cb = NULL;
- p->thread.ri_signum = 0;
frame->childregs.psw.mask &= ~PSW_MASK_RI;
/* Set a new TLS ? */
@@ -199,7 +200,7 @@ int dump_fpu (struct pt_regs * regs, s390_fp_regs *fpregs)
save_fpu_regs();
fpregs->fpc = current->thread.fpu.fpc;
fpregs->pad = 0;
- if (is_vx_task(current))
+ if (MACHINE_HAS_VX)
convert_vx_to_fp((freg_t *)&fpregs->fprs,
current->thread.fpu.vxrs);
else
@@ -242,11 +243,7 @@ unsigned long arch_align_stack(unsigned long sp)
static inline unsigned long brk_rnd(void)
{
- /* 8MB for 32bit, 1GB for 64bit */
- if (is_32bit_task())
- return (get_random_int() & 0x7ffUL) << PAGE_SHIFT;
- else
- return (get_random_int() & 0x3ffffUL) << PAGE_SHIFT;
+ return (get_random_int() & BRK_RND_MASK) << PAGE_SHIFT;
}
unsigned long arch_randomize_brk(struct mm_struct *mm)
diff --git a/arch/s390/kernel/processor.c b/arch/s390/kernel/processor.c
index e6e077ae3..7ce00e7a7 100644
--- a/arch/s390/kernel/processor.c
+++ b/arch/s390/kernel/processor.c
@@ -11,6 +11,7 @@
#include <linux/seq_file.h>
#include <linux/delay.h>
#include <linux/cpu.h>
+#include <asm/diag.h>
#include <asm/elf.h>
#include <asm/lowcore.h>
#include <asm/param.h>
@@ -20,8 +21,10 @@ static DEFINE_PER_CPU(struct cpuid, cpu_id);
void notrace cpu_relax(void)
{
- if (!smp_cpu_mtid && MACHINE_HAS_DIAG44)
+ if (!smp_cpu_mtid && MACHINE_HAS_DIAG44) {
+ diag_stat_inc(DIAG_STAT_X044);
asm volatile("diag 0,0,0x44");
+ }
barrier();
}
EXPORT_SYMBOL(cpu_relax);
diff --git a/arch/s390/kernel/ptrace.c b/arch/s390/kernel/ptrace.c
index d319f36f7..01c37b36c 100644
--- a/arch/s390/kernel/ptrace.c
+++ b/arch/s390/kernel/ptrace.c
@@ -239,7 +239,7 @@ static unsigned long __peek_user(struct task_struct *child, addr_t addr)
* or the child->thread.fpu.vxrs array
*/
offset = addr - (addr_t) &dummy->regs.fp_regs.fprs;
- if (is_vx_task(child))
+ if (MACHINE_HAS_VX)
tmp = *(addr_t *)
((addr_t) child->thread.fpu.vxrs + 2*offset);
else
@@ -383,7 +383,7 @@ static int __poke_user(struct task_struct *child, addr_t addr, addr_t data)
* or the child->thread.fpu.vxrs array
*/
offset = addr - (addr_t) &dummy->regs.fp_regs.fprs;
- if (is_vx_task(child))
+ if (MACHINE_HAS_VX)
*(addr_t *)((addr_t)
child->thread.fpu.vxrs + 2*offset) = data;
else
@@ -617,7 +617,7 @@ static u32 __peek_user_compat(struct task_struct *child, addr_t addr)
* or the child->thread.fpu.vxrs array
*/
offset = addr - (addr_t) &dummy32->regs.fp_regs.fprs;
- if (is_vx_task(child))
+ if (MACHINE_HAS_VX)
tmp = *(__u32 *)
((addr_t) child->thread.fpu.vxrs + 2*offset);
else
@@ -742,7 +742,7 @@ static int __poke_user_compat(struct task_struct *child,
* or the child->thread.fpu.vxrs array
*/
offset = addr - (addr_t) &dummy32->regs.fp_regs.fprs;
- if (is_vx_task(child))
+ if (MACHINE_HAS_VX)
*(__u32 *)((addr_t)
child->thread.fpu.vxrs + 2*offset) = tmp;
else
@@ -981,7 +981,7 @@ static int s390_fpregs_set(struct task_struct *target,
if (rc)
return rc;
- if (is_vx_task(target))
+ if (MACHINE_HAS_VX)
convert_fp_to_vx(target->thread.fpu.vxrs, fprs);
else
memcpy(target->thread.fpu.fprs, &fprs, sizeof(fprs));
@@ -1047,13 +1047,10 @@ static int s390_vxrs_low_get(struct task_struct *target,
if (!MACHINE_HAS_VX)
return -ENODEV;
- if (is_vx_task(target)) {
- if (target == current)
- save_fpu_regs();
- for (i = 0; i < __NUM_VXRS_LOW; i++)
- vxrs[i] = *((__u64 *)(target->thread.fpu.vxrs + i) + 1);
- } else
- memset(vxrs, 0, sizeof(vxrs));
+ if (target == current)
+ save_fpu_regs();
+ for (i = 0; i < __NUM_VXRS_LOW; i++)
+ vxrs[i] = *((__u64 *)(target->thread.fpu.vxrs + i) + 1);
return user_regset_copyout(&pos, &count, &kbuf, &ubuf, vxrs, 0, -1);
}
@@ -1067,11 +1064,7 @@ static int s390_vxrs_low_set(struct task_struct *target,
if (!MACHINE_HAS_VX)
return -ENODEV;
- if (!is_vx_task(target)) {
- rc = alloc_vector_registers(target);
- if (rc)
- return rc;
- } else if (target == current)
+ if (target == current)
save_fpu_regs();
rc = user_regset_copyin(&pos, &count, &kbuf, &ubuf, vxrs, 0, -1);
@@ -1091,13 +1084,10 @@ static int s390_vxrs_high_get(struct task_struct *target,
if (!MACHINE_HAS_VX)
return -ENODEV;
- if (is_vx_task(target)) {
- if (target == current)
- save_fpu_regs();
- memcpy(vxrs, target->thread.fpu.vxrs + __NUM_VXRS_LOW,
- sizeof(vxrs));
- } else
- memset(vxrs, 0, sizeof(vxrs));
+ if (target == current)
+ save_fpu_regs();
+ memcpy(vxrs, target->thread.fpu.vxrs + __NUM_VXRS_LOW, sizeof(vxrs));
+
return user_regset_copyout(&pos, &count, &kbuf, &ubuf, vxrs, 0, -1);
}
@@ -1110,11 +1100,7 @@ static int s390_vxrs_high_set(struct task_struct *target,
if (!MACHINE_HAS_VX)
return -ENODEV;
- if (!is_vx_task(target)) {
- rc = alloc_vector_registers(target);
- if (rc)
- return rc;
- } else if (target == current)
+ if (target == current)
save_fpu_regs();
rc = user_regset_copyin(&pos, &count, &kbuf, &ubuf,
diff --git a/arch/s390/kernel/runtime_instr.c b/arch/s390/kernel/runtime_instr.c
index 26b4ae96f..fffa0e546 100644
--- a/arch/s390/kernel/runtime_instr.c
+++ b/arch/s390/kernel/runtime_instr.c
@@ -18,11 +18,6 @@
/* empty control block to disable RI by loading it */
struct runtime_instr_cb runtime_instr_empty_cb;
-static int runtime_instr_avail(void)
-{
- return test_facility(64);
-}
-
static void disable_runtime_instr(void)
{
struct pt_regs *regs = task_pt_regs(current);
@@ -40,7 +35,6 @@ static void disable_runtime_instr(void)
static void init_runtime_instr_cb(struct runtime_instr_cb *cb)
{
cb->buf_limit = 0xfff;
- cb->int_requested = 1;
cb->pstate = 1;
cb->pstate_set_buf = 1;
cb->pstate_sample = 1;
@@ -57,46 +51,14 @@ void exit_thread_runtime_instr(void)
return;
disable_runtime_instr();
kfree(task->thread.ri_cb);
- task->thread.ri_signum = 0;
task->thread.ri_cb = NULL;
}
-static void runtime_instr_int_handler(struct ext_code ext_code,
- unsigned int param32, unsigned long param64)
-{
- struct siginfo info;
-
- if (!(param32 & CPU_MF_INT_RI_MASK))
- return;
-
- inc_irq_stat(IRQEXT_CMR);
-
- if (!current->thread.ri_cb)
- return;
- if (current->thread.ri_signum < SIGRTMIN ||
- current->thread.ri_signum > SIGRTMAX) {
- WARN_ON_ONCE(1);
- return;
- }
-
- memset(&info, 0, sizeof(info));
- info.si_signo = current->thread.ri_signum;
- info.si_code = SI_QUEUE;
- if (param32 & CPU_MF_INT_RI_BUF_FULL)
- info.si_int = ENOBUFS;
- else if (param32 & CPU_MF_INT_RI_HALTED)
- info.si_int = ECANCELED;
- else
- return; /* unknown reason */
-
- send_sig_info(current->thread.ri_signum, &info, current);
-}
-
-SYSCALL_DEFINE2(s390_runtime_instr, int, command, int, signum)
+SYSCALL_DEFINE1(s390_runtime_instr, int, command)
{
struct runtime_instr_cb *cb;
- if (!runtime_instr_avail())
+ if (!test_facility(64))
return -EOPNOTSUPP;
if (command == S390_RUNTIME_INSTR_STOP) {
@@ -106,8 +68,7 @@ SYSCALL_DEFINE2(s390_runtime_instr, int, command, int, signum)
return 0;
}
- if (command != S390_RUNTIME_INSTR_START ||
- (signum < SIGRTMIN || signum > SIGRTMAX))
+ if (command != S390_RUNTIME_INSTR_START)
return -EINVAL;
if (!current->thread.ri_cb) {
@@ -120,7 +81,6 @@ SYSCALL_DEFINE2(s390_runtime_instr, int, command, int, signum)
}
init_runtime_instr_cb(cb);
- current->thread.ri_signum = signum;
/* now load the control block to make it available */
preempt_disable();
@@ -129,21 +89,3 @@ SYSCALL_DEFINE2(s390_runtime_instr, int, command, int, signum)
preempt_enable();
return 0;
}
-
-static int __init runtime_instr_init(void)
-{
- int rc;
-
- if (!runtime_instr_avail())
- return 0;
-
- irq_subclass_register(IRQ_SUBCLASS_MEASUREMENT_ALERT);
- rc = register_external_irq(EXT_IRQ_MEASURE_ALERT,
- runtime_instr_int_handler);
- if (rc)
- irq_subclass_unregister(IRQ_SUBCLASS_MEASUREMENT_ALERT);
- else
- pr_info("Runtime instrumentation facility initialized\n");
- return rc;
-}
-device_initcall(runtime_instr_init);
diff --git a/arch/s390/kernel/s390_ksyms.c b/arch/s390/kernel/s390_ksyms.c
index 5090d3dad..e67453b73 100644
--- a/arch/s390/kernel/s390_ksyms.c
+++ b/arch/s390/kernel/s390_ksyms.c
@@ -1,6 +1,6 @@
#include <linux/module.h>
#include <linux/kvm_host.h>
-#include <asm/fpu-internal.h>
+#include <asm/fpu/api.h>
#include <asm/ftrace.h>
#ifdef CONFIG_FUNCTION_TRACER
@@ -10,7 +10,6 @@ EXPORT_SYMBOL(_mcount);
EXPORT_SYMBOL(sie64a);
EXPORT_SYMBOL(sie_exit);
EXPORT_SYMBOL(save_fpu_regs);
-EXPORT_SYMBOL(__ctl_set_vx);
#endif
EXPORT_SYMBOL(memcpy);
EXPORT_SYMBOL(memset);
diff --git a/arch/s390/kernel/sclp.c b/arch/s390/kernel/sclp.c
index fa0bdff1d..9fe7781a4 100644
--- a/arch/s390/kernel/sclp.c
+++ b/arch/s390/kernel/sclp.c
@@ -21,7 +21,7 @@ static void _sclp_wait_int(void)
__ctl_load(cr0_new, 0, 0);
psw_ext_save = S390_lowcore.external_new_psw;
- psw_mask = __extract_psw() & (PSW_MASK_EA | PSW_MASK_BA);
+ psw_mask = __extract_psw();
S390_lowcore.external_new_psw.mask = psw_mask;
psw_wait.mask = psw_mask | PSW_MASK_EXT | PSW_MASK_WAIT;
S390_lowcore.ext_int_code = 0;
diff --git a/arch/s390/kernel/setup.c b/arch/s390/kernel/setup.c
index ce0cbd6ba..c837bcacf 100644
--- a/arch/s390/kernel/setup.c
+++ b/arch/s390/kernel/setup.c
@@ -764,9 +764,6 @@ static int __init setup_hwcaps(void)
get_cpu_id(&cpu_id);
add_device_randomness(&cpu_id, sizeof(cpu_id));
switch (cpu_id.machine) {
- case 0x9672:
- strcpy(elf_platform, "g5");
- break;
case 0x2064:
case 0x2066:
default: /* Use "z900" as default for 64 bit kernels. */
diff --git a/arch/s390/kernel/signal.c b/arch/s390/kernel/signal.c
index 9549af102..028cc46cb 100644
--- a/arch/s390/kernel/signal.c
+++ b/arch/s390/kernel/signal.c
@@ -179,7 +179,7 @@ static int save_sigregs_ext(struct pt_regs *regs,
int i;
/* Save vector registers to signal stack */
- if (is_vx_task(current)) {
+ if (MACHINE_HAS_VX) {
for (i = 0; i < __NUM_VXRS_LOW; i++)
vxrs[i] = *((__u64 *)(current->thread.fpu.vxrs + i) + 1);
if (__copy_to_user(&sregs_ext->vxrs_low, vxrs,
@@ -199,7 +199,7 @@ static int restore_sigregs_ext(struct pt_regs *regs,
int i;
/* Restore vector registers from signal stack */
- if (is_vx_task(current)) {
+ if (MACHINE_HAS_VX) {
if (__copy_from_user(vxrs, &sregs_ext->vxrs_low,
sizeof(sregs_ext->vxrs_low)) ||
__copy_from_user(current->thread.fpu.vxrs + __NUM_VXRS_LOW,
@@ -381,8 +381,7 @@ static int setup_rt_frame(struct ksignal *ksig, sigset_t *set,
uc_flags = 0;
if (MACHINE_HAS_VX) {
frame_size += sizeof(_sigregs_ext);
- if (is_vx_task(current))
- uc_flags |= UC_VXRS;
+ uc_flags |= UC_VXRS;
}
frame = get_sigframe(&ksig->ka, regs, frame_size);
if (frame == (void __user *) -1UL)
diff --git a/arch/s390/kernel/smp.c b/arch/s390/kernel/smp.c
index c6355e6f3..9062df575 100644
--- a/arch/s390/kernel/smp.c
+++ b/arch/s390/kernel/smp.c
@@ -33,6 +33,7 @@
#include <linux/crash_dump.h>
#include <linux/memblock.h>
#include <asm/asm-offsets.h>
+#include <asm/diag.h>
#include <asm/switch_to.h>
#include <asm/facility.h>
#include <asm/ipl.h>
@@ -261,6 +262,8 @@ static void pcpu_attach_task(struct pcpu *pcpu, struct task_struct *tsk)
+ THREAD_SIZE - STACK_FRAME_OVERHEAD - sizeof(struct pt_regs);
lc->thread_info = (unsigned long) task_thread_info(tsk);
lc->current_task = (unsigned long) tsk;
+ lc->lpp = LPP_MAGIC;
+ lc->current_pid = tsk->pid;
lc->user_timer = ti->user_timer;
lc->system_timer = ti->system_timer;
lc->steal_timer = 0;
@@ -375,11 +378,14 @@ int smp_vcpu_scheduled(int cpu)
void smp_yield_cpu(int cpu)
{
- if (MACHINE_HAS_DIAG9C)
+ if (MACHINE_HAS_DIAG9C) {
+ diag_stat_inc_norecursion(DIAG_STAT_X09C);
asm volatile("diag %0,0,0x9c"
: : "d" (pcpu_devices[cpu].address));
- else if (MACHINE_HAS_DIAG44)
+ } else if (MACHINE_HAS_DIAG44) {
+ diag_stat_inc_norecursion(DIAG_STAT_X044);
asm volatile("diag 0,0,0x44");
+ }
}
/*
diff --git a/arch/s390/kernel/syscalls.S b/arch/s390/kernel/syscalls.S
index 8c56929c8..5378c3ea1 100644
--- a/arch/s390/kernel/syscalls.S
+++ b/arch/s390/kernel/syscalls.S
@@ -382,3 +382,4 @@ SYSCALL(sys_sendmsg,compat_sys_sendmsg) /* 370 */
SYSCALL(sys_recvfrom,compat_sys_recvfrom)
SYSCALL(sys_recvmsg,compat_sys_recvmsg)
SYSCALL(sys_shutdown,sys_shutdown)
+SYSCALL(sys_mlock2,compat_sys_mlock2)
diff --git a/arch/s390/kernel/time.c b/arch/s390/kernel/time.c
index 017c3a9bf..99f84ac31 100644
--- a/arch/s390/kernel/time.c
+++ b/arch/s390/kernel/time.c
@@ -542,16 +542,17 @@ arch_initcall(etr_init);
* Switch to local machine check. This is called when the last usable
* ETR port goes inactive. After switch to local the clock is not in sync.
*/
-void etr_switch_to_local(void)
+int etr_switch_to_local(void)
{
if (!etr_eacr.sl)
- return;
+ return 0;
disable_sync_clock(NULL);
if (!test_and_set_bit(ETR_EVENT_SWITCH_LOCAL, &etr_events)) {
etr_eacr.es = etr_eacr.sl = 0;
etr_setr(&etr_eacr);
- queue_work(time_sync_wq, &etr_work);
+ return 1;
}
+ return 0;
}
/*
@@ -560,16 +561,22 @@ void etr_switch_to_local(void)
* After a ETR sync check the clock is not in sync. The machine check
* is broadcasted to all cpus at the same time.
*/
-void etr_sync_check(void)
+int etr_sync_check(void)
{
if (!etr_eacr.es)
- return;
+ return 0;
disable_sync_clock(NULL);
if (!test_and_set_bit(ETR_EVENT_SYNC_CHECK, &etr_events)) {
etr_eacr.es = 0;
etr_setr(&etr_eacr);
- queue_work(time_sync_wq, &etr_work);
+ return 1;
}
+ return 0;
+}
+
+void etr_queue_work(void)
+{
+ queue_work(time_sync_wq, &etr_work);
}
/*
@@ -1504,10 +1511,10 @@ static void stp_timing_alert(struct stp_irq_parm *intparm)
* After a STP sync check the clock is not in sync. The machine check
* is broadcasted to all cpus at the same time.
*/
-void stp_sync_check(void)
+int stp_sync_check(void)
{
disable_sync_clock(NULL);
- queue_work(time_sync_wq, &stp_work);
+ return 1;
}
/*
@@ -1516,12 +1523,16 @@ void stp_sync_check(void)
* have matching CTN ids and have a valid stratum-1 configuration
* but the configurations do not match.
*/
-void stp_island_check(void)
+int stp_island_check(void)
{
disable_sync_clock(NULL);
- queue_work(time_sync_wq, &stp_work);
+ return 1;
}
+void stp_queue_work(void)
+{
+ queue_work(time_sync_wq, &stp_work);
+}
static int stp_sync_clock(void *data)
{
diff --git a/arch/s390/kernel/topology.c b/arch/s390/kernel/topology.c
index bf05e7fc3..40b8102fd 100644
--- a/arch/s390/kernel/topology.c
+++ b/arch/s390/kernel/topology.c
@@ -84,6 +84,7 @@ static struct mask_info *add_cpus_to_mask(struct topology_core *tl_core,
struct mask_info *socket,
int one_socket_per_cpu)
{
+ struct cpu_topology_s390 *topo;
unsigned int core;
for_each_set_bit(core, &tl_core->mask[0], TOPOLOGY_CORE_BITS) {
@@ -95,15 +96,16 @@ static struct mask_info *add_cpus_to_mask(struct topology_core *tl_core,
if (lcpu < 0)
continue;
for (i = 0; i <= smp_cpu_mtid; i++) {
- per_cpu(cpu_topology, lcpu + i).book_id = book->id;
- per_cpu(cpu_topology, lcpu + i).core_id = rcore;
- per_cpu(cpu_topology, lcpu + i).thread_id = lcpu + i;
+ topo = &per_cpu(cpu_topology, lcpu + i);
+ topo->book_id = book->id;
+ topo->core_id = rcore;
+ topo->thread_id = lcpu + i;
cpumask_set_cpu(lcpu + i, &book->mask);
cpumask_set_cpu(lcpu + i, &socket->mask);
if (one_socket_per_cpu)
- per_cpu(cpu_topology, lcpu + i).socket_id = rcore;
+ topo->socket_id = rcore;
else
- per_cpu(cpu_topology, lcpu + i).socket_id = socket->id;
+ topo->socket_id = socket->id;
smp_cpu_set_polarization(lcpu + i, tl_core->pp);
}
if (one_socket_per_cpu)
@@ -247,17 +249,19 @@ int topology_set_cpu_management(int fc)
static void update_cpu_masks(void)
{
+ struct cpu_topology_s390 *topo;
int cpu;
for_each_possible_cpu(cpu) {
- per_cpu(cpu_topology, cpu).thread_mask = cpu_thread_map(cpu);
- per_cpu(cpu_topology, cpu).core_mask = cpu_group_map(&socket_info, cpu);
- per_cpu(cpu_topology, cpu).book_mask = cpu_group_map(&book_info, cpu);
+ topo = &per_cpu(cpu_topology, cpu);
+ topo->thread_mask = cpu_thread_map(cpu);
+ topo->core_mask = cpu_group_map(&socket_info, cpu);
+ topo->book_mask = cpu_group_map(&book_info, cpu);
if (!MACHINE_HAS_TOPOLOGY) {
- per_cpu(cpu_topology, cpu).thread_id = cpu;
- per_cpu(cpu_topology, cpu).core_id = cpu;
- per_cpu(cpu_topology, cpu).socket_id = cpu;
- per_cpu(cpu_topology, cpu).book_id = cpu;
+ topo->thread_id = cpu;
+ topo->core_id = cpu;
+ topo->socket_id = cpu;
+ topo->book_id = cpu;
}
}
numa_update_cpu_topology();
diff --git a/arch/s390/kernel/trace.c b/arch/s390/kernel/trace.c
new file mode 100644
index 000000000..21a5df995
--- /dev/null
+++ b/arch/s390/kernel/trace.c
@@ -0,0 +1,29 @@
+/*
+ * Tracepoint definitions for s390
+ *
+ * Copyright IBM Corp. 2015
+ * Author(s): Martin Schwidefsky <schwidefsky@de.ibm.com>
+ */
+
+#include <linux/percpu.h>
+#define CREATE_TRACE_POINTS
+#include <asm/trace/diag.h>
+
+EXPORT_TRACEPOINT_SYMBOL(s390_diagnose);
+
+static DEFINE_PER_CPU(unsigned int, diagnose_trace_depth);
+
+void trace_s390_diagnose_norecursion(int diag_nr)
+{
+ unsigned long flags;
+ unsigned int *depth;
+
+ local_irq_save(flags);
+ depth = this_cpu_ptr(&diagnose_trace_depth);
+ if (*depth == 0) {
+ (*depth)++;
+ trace_s390_diagnose(diag_nr);
+ (*depth)--;
+ }
+ local_irq_restore(flags);
+}
diff --git a/arch/s390/kernel/traps.c b/arch/s390/kernel/traps.c
index 9861613fb..1b18118bb 100644
--- a/arch/s390/kernel/traps.c
+++ b/arch/s390/kernel/traps.c
@@ -19,7 +19,7 @@
#include <linux/sched.h>
#include <linux/mm.h>
#include <linux/slab.h>
-#include <asm/fpu-internal.h>
+#include <asm/fpu/api.h>
#include "entry.h"
int show_unhandled_signals = 1;
@@ -224,29 +224,6 @@ NOKPROBE_SYMBOL(illegal_op);
DO_ERROR_INFO(specification_exception, SIGILL, ILL_ILLOPN,
"specification exception");
-int alloc_vector_registers(struct task_struct *tsk)
-{
- __vector128 *vxrs;
- freg_t *fprs;
-
- /* Allocate vector register save area. */
- vxrs = kzalloc(sizeof(__vector128) * __NUM_VXRS,
- GFP_KERNEL|__GFP_REPEAT);
- if (!vxrs)
- return -ENOMEM;
- preempt_disable();
- if (tsk == current)
- save_fpu_regs();
- /* Copy the 16 floating point registers */
- convert_fp_to_vx(vxrs, tsk->thread.fpu.fprs);
- fprs = tsk->thread.fpu.fprs;
- tsk->thread.fpu.vxrs = vxrs;
- tsk->thread.fpu.flags |= FPU_USE_VX;
- kfree(fprs);
- preempt_enable();
- return 0;
-}
-
void vector_exception(struct pt_regs *regs)
{
int si_code, vic;
@@ -281,13 +258,6 @@ void vector_exception(struct pt_regs *regs)
do_trap(regs, SIGFPE, si_code, "vector exception");
}
-static int __init disable_vector_extension(char *str)
-{
- S390_lowcore.machine_flags &= ~MACHINE_FLAG_VX;
- return 1;
-}
-__setup("novx", disable_vector_extension);
-
void data_exception(struct pt_regs *regs)
{
__u16 __user *location;
@@ -296,15 +266,6 @@ void data_exception(struct pt_regs *regs)
location = get_trap_ip(regs);
save_fpu_regs();
- /* Check for vector register enablement */
- if (MACHINE_HAS_VX && !is_vx_task(current) &&
- (current->thread.fpu.fpc & FPC_DXC_MASK) == 0xfe00) {
- alloc_vector_registers(current);
- /* Vector data exception is suppressing, rewind psw. */
- regs->psw.addr = __rewind_psw(regs->psw, regs->int_code >> 16);
- clear_pt_regs_flag(regs, PIF_PER_TRAP);
- return;
- }
if (current->thread.fpu.fpc & FPC_DXC_MASK)
signal = SIGFPE;
else
diff --git a/arch/s390/kernel/vdso.c b/arch/s390/kernel/vdso.c
index 0d58269ff..59eddb0e1 100644
--- a/arch/s390/kernel/vdso.c
+++ b/arch/s390/kernel/vdso.c
@@ -299,7 +299,7 @@ static int __init vdso_init(void)
get_page(virt_to_page(vdso_data));
- smp_wmb();
+ smp_mb();
return 0;
}
diff --git a/arch/s390/kvm/intercept.c b/arch/s390/kvm/intercept.c
index 7365e8a46..b4a5aa110 100644
--- a/arch/s390/kvm/intercept.c
+++ b/arch/s390/kvm/intercept.c
@@ -336,28 +336,28 @@ static int handle_partial_execution(struct kvm_vcpu *vcpu)
return -EOPNOTSUPP;
}
-static const intercept_handler_t intercept_funcs[] = {
- [0x00 >> 2] = handle_noop,
- [0x04 >> 2] = handle_instruction,
- [0x08 >> 2] = handle_prog,
- [0x10 >> 2] = handle_noop,
- [0x14 >> 2] = handle_external_interrupt,
- [0x18 >> 2] = handle_noop,
- [0x1C >> 2] = kvm_s390_handle_wait,
- [0x20 >> 2] = handle_validity,
- [0x28 >> 2] = handle_stop,
- [0x38 >> 2] = handle_partial_execution,
-};
-
int kvm_handle_sie_intercept(struct kvm_vcpu *vcpu)
{
- intercept_handler_t func;
- u8 code = vcpu->arch.sie_block->icptcode;
-
- if (code & 3 || (code >> 2) >= ARRAY_SIZE(intercept_funcs))
+ switch (vcpu->arch.sie_block->icptcode) {
+ case 0x00:
+ case 0x10:
+ case 0x18:
+ return handle_noop(vcpu);
+ case 0x04:
+ return handle_instruction(vcpu);
+ case 0x08:
+ return handle_prog(vcpu);
+ case 0x14:
+ return handle_external_interrupt(vcpu);
+ case 0x1c:
+ return kvm_s390_handle_wait(vcpu);
+ case 0x20:
+ return handle_validity(vcpu);
+ case 0x28:
+ return handle_stop(vcpu);
+ case 0x38:
+ return handle_partial_execution(vcpu);
+ default:
return -EOPNOTSUPP;
- func = intercept_funcs[code >> 2];
- if (func)
- return func(vcpu);
- return -EOPNOTSUPP;
+ }
}
diff --git a/arch/s390/kvm/interrupt.c b/arch/s390/kvm/interrupt.c
index 08de785c9..6a75352f4 100644
--- a/arch/s390/kvm/interrupt.c
+++ b/arch/s390/kvm/interrupt.c
@@ -51,11 +51,9 @@ static int psw_mchk_disabled(struct kvm_vcpu *vcpu)
static int psw_interrupts_disabled(struct kvm_vcpu *vcpu)
{
- if ((vcpu->arch.sie_block->gpsw.mask & PSW_MASK_PER) ||
- (vcpu->arch.sie_block->gpsw.mask & PSW_MASK_IO) ||
- (vcpu->arch.sie_block->gpsw.mask & PSW_MASK_EXT))
- return 0;
- return 1;
+ return psw_extint_disabled(vcpu) &&
+ psw_ioint_disabled(vcpu) &&
+ psw_mchk_disabled(vcpu);
}
static int ckc_interrupts_enabled(struct kvm_vcpu *vcpu)
@@ -71,13 +69,8 @@ static int ckc_interrupts_enabled(struct kvm_vcpu *vcpu)
static int ckc_irq_pending(struct kvm_vcpu *vcpu)
{
- preempt_disable();
- if (!(vcpu->arch.sie_block->ckc <
- get_tod_clock_fast() + vcpu->arch.sie_block->epoch)) {
- preempt_enable();
+ if (vcpu->arch.sie_block->ckc >= kvm_s390_get_tod_clock_fast(vcpu->kvm))
return 0;
- }
- preempt_enable();
return ckc_interrupts_enabled(vcpu);
}
@@ -109,14 +102,10 @@ static inline u8 int_word_to_isc(u32 int_word)
return (int_word & 0x38000000) >> 27;
}
-static inline unsigned long pending_floating_irqs(struct kvm_vcpu *vcpu)
+static inline unsigned long pending_irqs(struct kvm_vcpu *vcpu)
{
- return vcpu->kvm->arch.float_int.pending_irqs;
-}
-
-static inline unsigned long pending_local_irqs(struct kvm_vcpu *vcpu)
-{
- return vcpu->arch.local_int.pending_irqs;
+ return vcpu->kvm->arch.float_int.pending_irqs |
+ vcpu->arch.local_int.pending_irqs;
}
static unsigned long disable_iscs(struct kvm_vcpu *vcpu,
@@ -135,8 +124,7 @@ static unsigned long deliverable_irqs(struct kvm_vcpu *vcpu)
{
unsigned long active_mask;
- active_mask = pending_local_irqs(vcpu);
- active_mask |= pending_floating_irqs(vcpu);
+ active_mask = pending_irqs(vcpu);
if (!active_mask)
return 0;
@@ -204,7 +192,7 @@ static void __set_cpuflag(struct kvm_vcpu *vcpu, u32 flag)
static void set_intercept_indicators_io(struct kvm_vcpu *vcpu)
{
- if (!(pending_floating_irqs(vcpu) & IRQ_PEND_IO_MASK))
+ if (!(pending_irqs(vcpu) & IRQ_PEND_IO_MASK))
return;
else if (psw_ioint_disabled(vcpu))
__set_cpuflag(vcpu, CPUSTAT_IO_INT);
@@ -214,7 +202,7 @@ static void set_intercept_indicators_io(struct kvm_vcpu *vcpu)
static void set_intercept_indicators_ext(struct kvm_vcpu *vcpu)
{
- if (!(pending_local_irqs(vcpu) & IRQ_PEND_EXT_MASK))
+ if (!(pending_irqs(vcpu) & IRQ_PEND_EXT_MASK))
return;
if (psw_extint_disabled(vcpu))
__set_cpuflag(vcpu, CPUSTAT_EXT_INT);
@@ -224,7 +212,7 @@ static void set_intercept_indicators_ext(struct kvm_vcpu *vcpu)
static void set_intercept_indicators_mchk(struct kvm_vcpu *vcpu)
{
- if (!(pending_local_irqs(vcpu) & IRQ_PEND_MCHK_MASK))
+ if (!(pending_irqs(vcpu) & IRQ_PEND_MCHK_MASK))
return;
if (psw_mchk_disabled(vcpu))
vcpu->arch.sie_block->ictl |= ICTL_LPSW;
@@ -815,23 +803,21 @@ int kvm_s390_ext_call_pending(struct kvm_vcpu *vcpu)
int kvm_s390_vcpu_has_irq(struct kvm_vcpu *vcpu, int exclude_stop)
{
- int rc;
+ if (deliverable_irqs(vcpu))
+ return 1;
- rc = !!deliverable_irqs(vcpu);
-
- if (!rc && kvm_cpu_has_pending_timer(vcpu))
- rc = 1;
+ if (kvm_cpu_has_pending_timer(vcpu))
+ return 1;
/* external call pending and deliverable */
- if (!rc && kvm_s390_ext_call_pending(vcpu) &&
+ if (kvm_s390_ext_call_pending(vcpu) &&
!psw_extint_disabled(vcpu) &&
(vcpu->arch.sie_block->gcr[0] & 0x2000ul))
- rc = 1;
-
- if (!rc && !exclude_stop && kvm_s390_is_stop_irq_pending(vcpu))
- rc = 1;
+ return 1;
- return rc;
+ if (!exclude_stop && kvm_s390_is_stop_irq_pending(vcpu))
+ return 1;
+ return 0;
}
int kvm_cpu_has_pending_timer(struct kvm_vcpu *vcpu)
@@ -846,7 +832,7 @@ int kvm_s390_handle_wait(struct kvm_vcpu *vcpu)
vcpu->stat.exit_wait_state++;
/* fast path */
- if (kvm_cpu_has_pending_timer(vcpu) || kvm_arch_vcpu_runnable(vcpu))
+ if (kvm_arch_vcpu_runnable(vcpu))
return 0;
if (psw_interrupts_disabled(vcpu)) {
@@ -860,9 +846,7 @@ int kvm_s390_handle_wait(struct kvm_vcpu *vcpu)
goto no_timer;
}
- preempt_disable();
- now = get_tod_clock_fast() + vcpu->arch.sie_block->epoch;
- preempt_enable();
+ now = kvm_s390_get_tod_clock_fast(vcpu->kvm);
sltime = tod_to_ns(vcpu->arch.sie_block->ckc - now);
/* underflow */
@@ -901,9 +885,7 @@ enum hrtimer_restart kvm_s390_idle_wakeup(struct hrtimer *timer)
u64 now, sltime;
vcpu = container_of(timer, struct kvm_vcpu, arch.ckc_timer);
- preempt_disable();
- now = get_tod_clock_fast() + vcpu->arch.sie_block->epoch;
- preempt_enable();
+ now = kvm_s390_get_tod_clock_fast(vcpu->kvm);
sltime = tod_to_ns(vcpu->arch.sie_block->ckc - now);
/*
@@ -981,39 +963,30 @@ static int __inject_prog(struct kvm_vcpu *vcpu, struct kvm_s390_irq *irq)
trace_kvm_s390_inject_vcpu(vcpu->vcpu_id, KVM_S390_PROGRAM_INT,
irq->u.pgm.code, 0);
- li->irq.pgm = irq->u.pgm;
+ if (irq->u.pgm.code == PGM_PER) {
+ li->irq.pgm.code |= PGM_PER;
+ /* only modify PER related information */
+ li->irq.pgm.per_address = irq->u.pgm.per_address;
+ li->irq.pgm.per_code = irq->u.pgm.per_code;
+ li->irq.pgm.per_atmid = irq->u.pgm.per_atmid;
+ li->irq.pgm.per_access_id = irq->u.pgm.per_access_id;
+ } else if (!(irq->u.pgm.code & PGM_PER)) {
+ li->irq.pgm.code = (li->irq.pgm.code & PGM_PER) |
+ irq->u.pgm.code;
+ /* only modify non-PER information */
+ li->irq.pgm.trans_exc_code = irq->u.pgm.trans_exc_code;
+ li->irq.pgm.mon_code = irq->u.pgm.mon_code;
+ li->irq.pgm.data_exc_code = irq->u.pgm.data_exc_code;
+ li->irq.pgm.mon_class_nr = irq->u.pgm.mon_class_nr;
+ li->irq.pgm.exc_access_id = irq->u.pgm.exc_access_id;
+ li->irq.pgm.op_access_id = irq->u.pgm.op_access_id;
+ } else {
+ li->irq.pgm = irq->u.pgm;
+ }
set_bit(IRQ_PEND_PROG, &li->pending_irqs);
return 0;
}
-int kvm_s390_inject_program_int(struct kvm_vcpu *vcpu, u16 code)
-{
- struct kvm_s390_local_interrupt *li = &vcpu->arch.local_int;
- struct kvm_s390_irq irq;
-
- spin_lock(&li->lock);
- irq.u.pgm.code = code;
- __inject_prog(vcpu, &irq);
- BUG_ON(waitqueue_active(li->wq));
- spin_unlock(&li->lock);
- return 0;
-}
-
-int kvm_s390_inject_prog_irq(struct kvm_vcpu *vcpu,
- struct kvm_s390_pgm_info *pgm_info)
-{
- struct kvm_s390_local_interrupt *li = &vcpu->arch.local_int;
- struct kvm_s390_irq irq;
- int rc;
-
- spin_lock(&li->lock);
- irq.u.pgm = *pgm_info;
- rc = __inject_prog(vcpu, &irq);
- BUG_ON(waitqueue_active(li->wq));
- spin_unlock(&li->lock);
- return rc;
-}
-
static int __inject_pfault_init(struct kvm_vcpu *vcpu, struct kvm_s390_irq *irq)
{
struct kvm_s390_local_interrupt *li = &vcpu->arch.local_int;
@@ -1393,12 +1366,9 @@ static void __floating_irq_kick(struct kvm *kvm, u64 type)
static int __inject_vm(struct kvm *kvm, struct kvm_s390_interrupt_info *inti)
{
- struct kvm_s390_float_interrupt *fi;
u64 type = READ_ONCE(inti->type);
int rc;
- fi = &kvm->arch.float_int;
-
switch (type) {
case KVM_S390_MCHK:
rc = __inject_float_mchk(kvm, inti);
diff --git a/arch/s390/kvm/kvm-s390.c b/arch/s390/kvm/kvm-s390.c
index 1290af834..846589281 100644
--- a/arch/s390/kvm/kvm-s390.c
+++ b/arch/s390/kvm/kvm-s390.c
@@ -518,35 +518,20 @@ static int kvm_s390_set_tod_high(struct kvm *kvm, struct kvm_device_attr *attr)
if (gtod_high != 0)
return -EINVAL;
- VM_EVENT(kvm, 3, "SET: TOD extension: 0x%x\n", gtod_high);
+ VM_EVENT(kvm, 3, "SET: TOD extension: 0x%x", gtod_high);
return 0;
}
static int kvm_s390_set_tod_low(struct kvm *kvm, struct kvm_device_attr *attr)
{
- struct kvm_vcpu *cur_vcpu;
- unsigned int vcpu_idx;
- u64 host_tod, gtod;
- int r;
+ u64 gtod;
if (copy_from_user(&gtod, (void __user *)attr->addr, sizeof(gtod)))
return -EFAULT;
- r = store_tod_clock(&host_tod);
- if (r)
- return r;
-
- mutex_lock(&kvm->lock);
- preempt_disable();
- kvm->arch.epoch = gtod - host_tod;
- kvm_s390_vcpu_block_all(kvm);
- kvm_for_each_vcpu(vcpu_idx, cur_vcpu, kvm)
- cur_vcpu->arch.sie_block->epoch = kvm->arch.epoch;
- kvm_s390_vcpu_unblock_all(kvm);
- preempt_enable();
- mutex_unlock(&kvm->lock);
- VM_EVENT(kvm, 3, "SET: TOD base: 0x%llx\n", gtod);
+ kvm_s390_set_tod_clock(kvm, gtod);
+ VM_EVENT(kvm, 3, "SET: TOD base: 0x%llx", gtod);
return 0;
}
@@ -578,26 +563,19 @@ static int kvm_s390_get_tod_high(struct kvm *kvm, struct kvm_device_attr *attr)
if (copy_to_user((void __user *)attr->addr, &gtod_high,
sizeof(gtod_high)))
return -EFAULT;
- VM_EVENT(kvm, 3, "QUERY: TOD extension: 0x%x\n", gtod_high);
+ VM_EVENT(kvm, 3, "QUERY: TOD extension: 0x%x", gtod_high);
return 0;
}
static int kvm_s390_get_tod_low(struct kvm *kvm, struct kvm_device_attr *attr)
{
- u64 host_tod, gtod;
- int r;
+ u64 gtod;
- r = store_tod_clock(&host_tod);
- if (r)
- return r;
-
- preempt_disable();
- gtod = host_tod + kvm->arch.epoch;
- preempt_enable();
+ gtod = kvm_s390_get_tod_clock_fast(kvm);
if (copy_to_user((void __user *)attr->addr, &gtod, sizeof(gtod)))
return -EFAULT;
- VM_EVENT(kvm, 3, "QUERY: TOD base: 0x%llx\n", gtod);
+ VM_EVENT(kvm, 3, "QUERY: TOD base: 0x%llx", gtod);
return 0;
}
@@ -1298,7 +1276,6 @@ int kvm_arch_vcpu_init(struct kvm_vcpu *vcpu)
static inline void save_fpu_to(struct fpu *dst)
{
dst->fpc = current->thread.fpu.fpc;
- dst->flags = current->thread.fpu.flags;
dst->regs = current->thread.fpu.regs;
}
@@ -1309,7 +1286,6 @@ static inline void save_fpu_to(struct fpu *dst)
static inline void load_fpu_from(struct fpu *from)
{
current->thread.fpu.fpc = from->fpc;
- current->thread.fpu.flags = from->flags;
current->thread.fpu.regs = from->regs;
}
@@ -1321,15 +1297,12 @@ void kvm_arch_vcpu_load(struct kvm_vcpu *vcpu, int cpu)
if (test_kvm_facility(vcpu->kvm, 129)) {
current->thread.fpu.fpc = vcpu->run->s.regs.fpc;
- current->thread.fpu.flags = FPU_USE_VX;
/*
* Use the register save area in the SIE-control block
* for register restore and save in kvm_arch_vcpu_put()
*/
current->thread.fpu.vxrs =
(__vector128 *)&vcpu->run->s.regs.vrs;
- /* Always enable the vector extension for KVM */
- __ctl_set_vx();
} else
load_fpu_from(&vcpu->arch.guest_fpregs);
@@ -1922,6 +1895,22 @@ retry:
return 0;
}
+void kvm_s390_set_tod_clock(struct kvm *kvm, u64 tod)
+{
+ struct kvm_vcpu *vcpu;
+ int i;
+
+ mutex_lock(&kvm->lock);
+ preempt_disable();
+ kvm->arch.epoch = tod - get_tod_clock();
+ kvm_s390_vcpu_block_all(kvm);
+ kvm_for_each_vcpu(i, vcpu, kvm)
+ vcpu->arch.sie_block->epoch = kvm->arch.epoch;
+ kvm_s390_vcpu_unblock_all(kvm);
+ preempt_enable();
+ mutex_unlock(&kvm->lock);
+}
+
/**
* kvm_arch_fault_in_page - fault-in guest page if necessary
* @vcpu: The corresponding virtual cpu
@@ -2332,7 +2321,6 @@ int kvm_s390_vcpu_store_status(struct kvm_vcpu *vcpu, unsigned long addr)
* registers and the FPC value and store them in the
* guest_fpregs structure.
*/
- WARN_ON(!is_vx_task(current)); /* XXX remove later */
vcpu->arch.guest_fpregs.fpc = current->thread.fpu.fpc;
convert_vx_to_fp(vcpu->arch.guest_fpregs.fprs,
current->thread.fpu.vxrs);
diff --git a/arch/s390/kvm/kvm-s390.h b/arch/s390/kvm/kvm-s390.h
index c446aabf6..1e70e00d3 100644
--- a/arch/s390/kvm/kvm-s390.h
+++ b/arch/s390/kvm/kvm-s390.h
@@ -175,6 +175,7 @@ static inline int kvm_s390_user_cpu_state_ctrl(struct kvm *kvm)
return kvm->arch.user_cpu_state_ctrl != 0;
}
+/* implemented in interrupt.c */
int kvm_s390_handle_wait(struct kvm_vcpu *vcpu);
void kvm_s390_vcpu_wakeup(struct kvm_vcpu *vcpu);
enum hrtimer_restart kvm_s390_idle_wakeup(struct hrtimer *timer);
@@ -185,7 +186,25 @@ int __must_check kvm_s390_inject_vm(struct kvm *kvm,
struct kvm_s390_interrupt *s390int);
int __must_check kvm_s390_inject_vcpu(struct kvm_vcpu *vcpu,
struct kvm_s390_irq *irq);
-int __must_check kvm_s390_inject_program_int(struct kvm_vcpu *vcpu, u16 code);
+static inline int kvm_s390_inject_prog_irq(struct kvm_vcpu *vcpu,
+ struct kvm_s390_pgm_info *pgm_info)
+{
+ struct kvm_s390_irq irq = {
+ .type = KVM_S390_PROGRAM_INT,
+ .u.pgm = *pgm_info,
+ };
+
+ return kvm_s390_inject_vcpu(vcpu, &irq);
+}
+static inline int kvm_s390_inject_program_int(struct kvm_vcpu *vcpu, u16 code)
+{
+ struct kvm_s390_irq irq = {
+ .type = KVM_S390_PROGRAM_INT,
+ .u.pgm.code = code,
+ };
+
+ return kvm_s390_inject_vcpu(vcpu, &irq);
+}
struct kvm_s390_interrupt_info *kvm_s390_get_io_int(struct kvm *kvm,
u64 isc_mask, u32 schid);
int kvm_s390_reinject_io_int(struct kvm *kvm,
@@ -212,6 +231,7 @@ int kvm_s390_handle_sigp(struct kvm_vcpu *vcpu);
int kvm_s390_handle_sigp_pei(struct kvm_vcpu *vcpu);
/* implemented in kvm-s390.c */
+void kvm_s390_set_tod_clock(struct kvm *kvm, u64 tod);
long kvm_arch_fault_in_page(struct kvm_vcpu *vcpu, gpa_t gpa, int writable);
int kvm_s390_store_status_unloaded(struct kvm_vcpu *vcpu, unsigned long addr);
int kvm_s390_store_adtl_status_unloaded(struct kvm_vcpu *vcpu,
@@ -231,9 +251,6 @@ extern unsigned long kvm_s390_fac_list_mask[];
/* implemented in diag.c */
int kvm_s390_handle_diag(struct kvm_vcpu *vcpu);
-/* implemented in interrupt.c */
-int kvm_s390_inject_prog_irq(struct kvm_vcpu *vcpu,
- struct kvm_s390_pgm_info *pgm_info);
static inline void kvm_s390_vcpu_block_all(struct kvm *kvm)
{
@@ -254,6 +271,16 @@ static inline void kvm_s390_vcpu_unblock_all(struct kvm *kvm)
kvm_s390_vcpu_unblock(vcpu);
}
+static inline u64 kvm_s390_get_tod_clock_fast(struct kvm *kvm)
+{
+ u64 rc;
+
+ preempt_disable();
+ rc = get_tod_clock_fast() + kvm->arch.epoch;
+ preempt_enable();
+ return rc;
+}
+
/**
* kvm_s390_inject_prog_cond - conditionally inject a program check
* @vcpu: virtual cpu
diff --git a/arch/s390/kvm/priv.c b/arch/s390/kvm/priv.c
index 4d21dc4d1..d76b51cb4 100644
--- a/arch/s390/kvm/priv.c
+++ b/arch/s390/kvm/priv.c
@@ -33,11 +33,9 @@
/* Handle SCK (SET CLOCK) interception */
static int handle_set_clock(struct kvm_vcpu *vcpu)
{
- struct kvm_vcpu *cpup;
- s64 hostclk, val;
- int i, rc;
+ int rc;
ar_t ar;
- u64 op2;
+ u64 op2, val;
if (vcpu->arch.sie_block->gpsw.mask & PSW_MASK_PSTATE)
return kvm_s390_inject_program_int(vcpu, PGM_PRIVILEGED_OP);
@@ -49,19 +47,8 @@ static int handle_set_clock(struct kvm_vcpu *vcpu)
if (rc)
return kvm_s390_inject_prog_cond(vcpu, rc);
- if (store_tod_clock(&hostclk)) {
- kvm_s390_set_psw_cc(vcpu, 3);
- return 0;
- }
VCPU_EVENT(vcpu, 3, "SCK: setting guest TOD to 0x%llx", val);
- val = (val - hostclk) & ~0x3fUL;
-
- mutex_lock(&vcpu->kvm->lock);
- preempt_disable();
- kvm_for_each_vcpu(i, cpup, vcpu->kvm)
- cpup->arch.sie_block->epoch = val;
- preempt_enable();
- mutex_unlock(&vcpu->kvm->lock);
+ kvm_s390_set_tod_clock(vcpu->kvm, val);
kvm_s390_set_psw_cc(vcpu, 0);
return 0;
@@ -673,7 +660,7 @@ static int handle_pfmf(struct kvm_vcpu *vcpu)
kvm_s390_get_regs_rre(vcpu, &reg1, &reg2);
- if (!MACHINE_HAS_PFMF)
+ if (!test_kvm_facility(vcpu->kvm, 8))
return kvm_s390_inject_program_int(vcpu, PGM_OPERATION);
if (vcpu->arch.sie_block->gpsw.mask & PSW_MASK_PSTATE)
diff --git a/arch/s390/lib/delay.c b/arch/s390/lib/delay.c
index 246a7eb4b..501dcd4ca 100644
--- a/arch/s390/lib/delay.c
+++ b/arch/s390/lib/delay.c
@@ -12,8 +12,10 @@
#include <linux/module.h>
#include <linux/irqflags.h>
#include <linux/interrupt.h>
+#include <linux/irq.h>
#include <asm/vtimer.h>
#include <asm/div64.h>
+#include <asm/idle.h>
void __delay(unsigned long loops)
{
@@ -30,26 +32,22 @@ EXPORT_SYMBOL(__delay);
static void __udelay_disabled(unsigned long long usecs)
{
- unsigned long cr0, cr6, new;
- u64 clock_saved, end;
+ unsigned long cr0, cr0_new, psw_mask;
+ struct s390_idle_data idle;
+ u64 end;
end = get_tod_clock() + (usecs << 12);
- clock_saved = local_tick_disable();
__ctl_store(cr0, 0, 0);
- __ctl_store(cr6, 6, 6);
- new = (cr0 & 0xffff00e0) | 0x00000800;
- __ctl_load(new , 0, 0);
- new = 0;
- __ctl_load(new, 6, 6);
- lockdep_off();
- do {
- set_clock_comparator(end);
- enabled_wait();
- } while (get_tod_clock_fast() < end);
- lockdep_on();
+ cr0_new = cr0 & ~CR0_IRQ_SUBCLASS_MASK;
+ cr0_new |= (1UL << (63 - 52)); /* enable clock comparator irq */
+ __ctl_load(cr0_new, 0, 0);
+ psw_mask = __extract_psw() | PSW_MASK_EXT | PSW_MASK_WAIT;
+ set_clock_comparator(end);
+ set_cpu_flag(CIF_IGNORE_IRQ);
+ psw_idle(&idle, psw_mask);
+ clear_cpu_flag(CIF_IGNORE_IRQ);
+ set_clock_comparator(S390_lowcore.clock_comparator);
__ctl_load(cr0, 0, 0);
- __ctl_load(cr6, 6, 6);
- local_tick_enable(clock_saved);
}
static void __udelay_enabled(unsigned long long usecs)
diff --git a/arch/s390/lib/find.c b/arch/s390/lib/find.c
index 922003c1b..d90b9245e 100644
--- a/arch/s390/lib/find.c
+++ b/arch/s390/lib/find.c
@@ -1,10 +1,8 @@
/*
* MSB0 numbered special bitops handling.
*
- * On s390x the bits are numbered:
+ * The bits are numbered:
* |0..............63|64............127|128...........191|192...........255|
- * and on s390:
- * |0.....31|32....63|64....95|96...127|128..159|160..191|192..223|224..255|
*
* The reason for this bit numbering is the fact that the hardware sets bits
* in a bitmap starting at bit 0 (MSB) and we don't want to scan the bitmap
diff --git a/arch/s390/lib/spinlock.c b/arch/s390/lib/spinlock.c
index d6c9991f7..427aa44b3 100644
--- a/arch/s390/lib/spinlock.c
+++ b/arch/s390/lib/spinlock.c
@@ -197,7 +197,7 @@ void _raw_write_lock_wait(arch_rwlock_t *rw, unsigned int prev)
}
old = ACCESS_ONCE(rw->lock);
owner = ACCESS_ONCE(rw->owner);
- smp_rmb();
+ smp_mb();
if ((int) old >= 0) {
prev = __RAW_LOCK(&rw->lock, 0x80000000, __RAW_OP_OR);
old = prev;
@@ -231,7 +231,7 @@ void _raw_write_lock_wait(arch_rwlock_t *rw)
_raw_compare_and_swap(&rw->lock, old, old | 0x80000000))
prev = old;
else
- smp_rmb();
+ smp_mb();
if ((old & 0x7fffffff) == 0 && (int) prev >= 0)
break;
if (MACHINE_HAS_CAD)
diff --git a/arch/s390/mm/extmem.c b/arch/s390/mm/extmem.c
index 23c496957..18fccc303 100644
--- a/arch/s390/mm/extmem.c
+++ b/arch/s390/mm/extmem.c
@@ -18,6 +18,7 @@
#include <linux/bootmem.h>
#include <linux/ctype.h>
#include <linux/ioport.h>
+#include <asm/diag.h>
#include <asm/page.h>
#include <asm/pgtable.h>
#include <asm/ebcdic.h>
@@ -112,6 +113,7 @@ dcss_set_subcodes(void)
ry = DCSS_FINDSEGX;
strcpy(name, "dummy");
+ diag_stat_inc(DIAG_STAT_X064);
asm volatile(
" diag %0,%1,0x64\n"
"0: ipm %2\n"
@@ -205,6 +207,7 @@ dcss_diag(int *func, void *parameter,
ry = (unsigned long) *func;
/* 64-bit Diag x'64' new subcode, keep in 64-bit addressing mode */
+ diag_stat_inc(DIAG_STAT_X064);
if (*func > DCSS_SEGEXT)
asm volatile(
" diag %0,%1,0x64\n"
diff --git a/arch/s390/mm/fault.c b/arch/s390/mm/fault.c
index f985856a5..ec1a30d0d 100644
--- a/arch/s390/mm/fault.c
+++ b/arch/s390/mm/fault.c
@@ -30,6 +30,7 @@
#include <linux/uaccess.h>
#include <linux/hugetlb.h>
#include <asm/asm-offsets.h>
+#include <asm/diag.h>
#include <asm/pgtable.h>
#include <asm/irq.h>
#include <asm/mmu_context.h>
@@ -589,7 +590,7 @@ int pfault_init(void)
.reffcode = 0,
.refdwlen = 5,
.refversn = 2,
- .refgaddr = __LC_CURRENT_PID,
+ .refgaddr = __LC_LPP,
.refselmk = 1ULL << 48,
.refcmpmk = 1ULL << 48,
.reserved = __PF_RES_FIELD };
@@ -597,6 +598,7 @@ int pfault_init(void)
if (pfault_disable)
return -1;
+ diag_stat_inc(DIAG_STAT_X258);
asm volatile(
" diag %1,%0,0x258\n"
"0: j 2f\n"
@@ -618,6 +620,7 @@ void pfault_fini(void)
if (pfault_disable)
return;
+ diag_stat_inc(DIAG_STAT_X258);
asm volatile(
" diag %0,0,0x258\n"
"0:\n"
@@ -646,7 +649,7 @@ static void pfault_interrupt(struct ext_code ext_code,
return;
inc_irq_stat(IRQEXT_PFL);
/* Get the token (= pid of the affected task). */
- pid = param64;
+ pid = param64 & LPP_PFAULT_PID_MASK;
rcu_read_lock();
tsk = find_task_by_pid_ns(pid, &init_pid_ns);
if (tsk)
diff --git a/arch/s390/mm/hugetlbpage.c b/arch/s390/mm/hugetlbpage.c
index fb4bf2c43..f81096b69 100644
--- a/arch/s390/mm/hugetlbpage.c
+++ b/arch/s390/mm/hugetlbpage.c
@@ -40,6 +40,7 @@ static inline pmd_t __pte_to_pmd(pte_t pte)
pmd_val(pmd) |= (pte_val(pte) & _PAGE_PROTECT);
pmd_val(pmd) |= (pte_val(pte) & _PAGE_DIRTY) << 10;
pmd_val(pmd) |= (pte_val(pte) & _PAGE_YOUNG) << 10;
+ pmd_val(pmd) |= (pte_val(pte) & _PAGE_SOFT_DIRTY) << 13;
} else
pmd_val(pmd) = _SEGMENT_ENTRY_INVALID;
return pmd;
@@ -78,6 +79,7 @@ static inline pte_t __pmd_to_pte(pmd_t pmd)
pte_val(pte) |= (pmd_val(pmd) & _SEGMENT_ENTRY_PROTECT);
pte_val(pte) |= (pmd_val(pmd) & _SEGMENT_ENTRY_DIRTY) >> 10;
pte_val(pte) |= (pmd_val(pmd) & _SEGMENT_ENTRY_YOUNG) >> 10;
+ pte_val(pte) |= (pmd_val(pmd) & _SEGMENT_ENTRY_SOFT_DIRTY) >> 13;
} else
pte_val(pte) = _PAGE_INVALID;
return pte;
diff --git a/arch/s390/mm/init.c b/arch/s390/mm/init.c
index c3c07d350..c722400c7 100644
--- a/arch/s390/mm/init.c
+++ b/arch/s390/mm/init.c
@@ -48,37 +48,13 @@ EXPORT_SYMBOL(zero_page_mask);
static void __init setup_zero_pages(void)
{
- struct cpuid cpu_id;
unsigned int order;
struct page *page;
int i;
- get_cpu_id(&cpu_id);
- switch (cpu_id.machine) {
- case 0x9672: /* g5 */
- case 0x2064: /* z900 */
- case 0x2066: /* z900 */
- case 0x2084: /* z990 */
- case 0x2086: /* z990 */
- case 0x2094: /* z9-109 */
- case 0x2096: /* z9-109 */
- order = 0;
- break;
- case 0x2097: /* z10 */
- case 0x2098: /* z10 */
- case 0x2817: /* z196 */
- case 0x2818: /* z196 */
- order = 2;
- break;
- case 0x2827: /* zEC12 */
- case 0x2828: /* zEC12 */
- order = 5;
- break;
- case 0x2964: /* z13 */
- default:
- order = 7;
- break;
- }
+ /* Latest machines require a mapping granularity of 512KB */
+ order = 7;
+
/* Limit number of empty zero pages for small memory sizes */
while (order > 2 && (totalram_pages >> 10) < (1UL << order))
order--;
diff --git a/arch/s390/mm/mmap.c b/arch/s390/mm/mmap.c
index 6e552af08..ea01477b4 100644
--- a/arch/s390/mm/mmap.c
+++ b/arch/s390/mm/mmap.c
@@ -31,9 +31,6 @@
#include <linux/security.h>
#include <asm/pgalloc.h>
-unsigned long mmap_rnd_mask;
-static unsigned long mmap_align_mask;
-
static unsigned long stack_maxrandom_size(void)
{
if (!(current->flags & PF_RANDOMIZE))
@@ -62,10 +59,7 @@ static inline int mmap_is_legacy(void)
unsigned long arch_mmap_rnd(void)
{
- if (is_32bit_task())
- return (get_random_int() & 0x7ff) << PAGE_SHIFT;
- else
- return (get_random_int() & mmap_rnd_mask) << PAGE_SHIFT;
+ return (get_random_int() & MMAP_RND_MASK) << PAGE_SHIFT;
}
static unsigned long mmap_base_legacy(unsigned long rnd)
@@ -92,7 +86,6 @@ arch_get_unmapped_area(struct file *filp, unsigned long addr,
struct mm_struct *mm = current->mm;
struct vm_area_struct *vma;
struct vm_unmapped_area_info info;
- int do_color_align;
if (len > TASK_SIZE - mmap_min_addr)
return -ENOMEM;
@@ -108,15 +101,14 @@ arch_get_unmapped_area(struct file *filp, unsigned long addr,
return addr;
}
- do_color_align = 0;
- if (filp || (flags & MAP_SHARED))
- do_color_align = !is_32bit_task();
-
info.flags = 0;
info.length = len;
info.low_limit = mm->mmap_base;
info.high_limit = TASK_SIZE;
- info.align_mask = do_color_align ? (mmap_align_mask << PAGE_SHIFT) : 0;
+ if (filp || (flags & MAP_SHARED))
+ info.align_mask = MMAP_ALIGN_MASK << PAGE_SHIFT;
+ else
+ info.align_mask = 0;
info.align_offset = pgoff << PAGE_SHIFT;
return vm_unmapped_area(&info);
}
@@ -130,7 +122,6 @@ arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0,
struct mm_struct *mm = current->mm;
unsigned long addr = addr0;
struct vm_unmapped_area_info info;
- int do_color_align;
/* requested length too big for entire address space */
if (len > TASK_SIZE - mmap_min_addr)
@@ -148,15 +139,14 @@ arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0,
return addr;
}
- do_color_align = 0;
- if (filp || (flags & MAP_SHARED))
- do_color_align = !is_32bit_task();
-
info.flags = VM_UNMAPPED_AREA_TOPDOWN;
info.length = len;
info.low_limit = max(PAGE_SIZE, mmap_min_addr);
info.high_limit = mm->mmap_base;
- info.align_mask = do_color_align ? (mmap_align_mask << PAGE_SHIFT) : 0;
+ if (filp || (flags & MAP_SHARED))
+ info.align_mask = MMAP_ALIGN_MASK << PAGE_SHIFT;
+ else
+ info.align_mask = 0;
info.align_offset = pgoff << PAGE_SHIFT;
addr = vm_unmapped_area(&info);
@@ -254,35 +244,3 @@ void arch_pick_mmap_layout(struct mm_struct *mm)
mm->get_unmapped_area = s390_get_unmapped_area_topdown;
}
}
-
-static int __init setup_mmap_rnd(void)
-{
- struct cpuid cpu_id;
-
- get_cpu_id(&cpu_id);
- switch (cpu_id.machine) {
- case 0x9672:
- case 0x2064:
- case 0x2066:
- case 0x2084:
- case 0x2086:
- case 0x2094:
- case 0x2096:
- case 0x2097:
- case 0x2098:
- case 0x2817:
- case 0x2818:
- case 0x2827:
- case 0x2828:
- mmap_rnd_mask = 0x7ffUL;
- mmap_align_mask = 0UL;
- break;
- case 0x2964: /* z13 */
- default:
- mmap_rnd_mask = 0x3ff80UL;
- mmap_align_mask = 0x7fUL;
- break;
- }
- return 0;
-}
-early_initcall(setup_mmap_rnd);
diff --git a/arch/s390/net/bpf_jit_comp.c b/arch/s390/net/bpf_jit_comp.c
index eeda05144..9a0c4c22e 100644
--- a/arch/s390/net/bpf_jit_comp.c
+++ b/arch/s390/net/bpf_jit_comp.c
@@ -1310,7 +1310,7 @@ void bpf_int_jit_compile(struct bpf_prog *fp)
if (jit.prg_buf) {
set_memory_ro((unsigned long)header, header->pages);
fp->bpf_func = (void *) jit.prg_buf;
- fp->jited = true;
+ fp->jited = 1;
}
free_addrs:
kfree(jit.addrs);
diff --git a/arch/s390/numa/mode_emu.c b/arch/s390/numa/mode_emu.c
index 30b2698a2..828d0695d 100644
--- a/arch/s390/numa/mode_emu.c
+++ b/arch/s390/numa/mode_emu.c
@@ -436,9 +436,15 @@ static void emu_update_cpu_topology(void)
*/
static unsigned long emu_setup_size_adjust(unsigned long size)
{
+ unsigned long size_new;
+
size = size ? : CONFIG_EMU_SIZE;
- size = roundup(size, memory_block_size_bytes());
- return size;
+ size_new = roundup(size, memory_block_size_bytes());
+ if (size_new == size)
+ return size;
+ pr_warn("Increasing memory stripe size from %ld MB to %ld MB\n",
+ size >> 20, size_new >> 20);
+ return size_new;
}
/*
diff --git a/arch/s390/pci/pci_dma.c b/arch/s390/pci/pci_dma.c
index 37505b8b4..d348f2c09 100644
--- a/arch/s390/pci/pci_dma.c
+++ b/arch/s390/pci/pci_dma.c
@@ -24,7 +24,7 @@ static int zpci_refresh_global(struct zpci_dev *zdev)
zdev->iommu_pages * PAGE_SIZE);
}
-static unsigned long *dma_alloc_cpu_table(void)
+unsigned long *dma_alloc_cpu_table(void)
{
unsigned long *table, *entry;
@@ -33,7 +33,7 @@ static unsigned long *dma_alloc_cpu_table(void)
return NULL;
for (entry = table; entry < table + ZPCI_TABLE_ENTRIES; entry++)
- *entry = ZPCI_TABLE_INVALID | ZPCI_TABLE_PROTECTED;
+ *entry = ZPCI_TABLE_INVALID;
return table;
}
@@ -51,7 +51,7 @@ static unsigned long *dma_alloc_page_table(void)
return NULL;
for (entry = table; entry < table + ZPCI_PT_ENTRIES; entry++)
- *entry = ZPCI_PTE_INVALID | ZPCI_TABLE_PROTECTED;
+ *entry = ZPCI_PTE_INVALID;
return table;
}
@@ -95,7 +95,7 @@ static unsigned long *dma_get_page_table_origin(unsigned long *entry)
return pto;
}
-static unsigned long *dma_walk_cpu_trans(unsigned long *rto, dma_addr_t dma_addr)
+unsigned long *dma_walk_cpu_trans(unsigned long *rto, dma_addr_t dma_addr)
{
unsigned long *sto, *pto;
unsigned int rtx, sx, px;
@@ -114,20 +114,10 @@ static unsigned long *dma_walk_cpu_trans(unsigned long *rto, dma_addr_t dma_addr
return &pto[px];
}
-static void dma_update_cpu_trans(struct zpci_dev *zdev, void *page_addr,
- dma_addr_t dma_addr, int flags)
+void dma_update_cpu_trans(unsigned long *entry, void *page_addr, int flags)
{
- unsigned long *entry;
-
- entry = dma_walk_cpu_trans(zdev->dma_table, dma_addr);
- if (!entry) {
- WARN_ON_ONCE(1);
- return;
- }
-
if (flags & ZPCI_PTE_INVALID) {
invalidate_pt_entry(entry);
- return;
} else {
set_pt_pfaa(entry, page_addr);
validate_pt_entry(entry);
@@ -146,17 +136,25 @@ static int dma_update_trans(struct zpci_dev *zdev, unsigned long pa,
u8 *page_addr = (u8 *) (pa & PAGE_MASK);
dma_addr_t start_dma_addr = dma_addr;
unsigned long irq_flags;
+ unsigned long *entry;
int i, rc = 0;
if (!nr_pages)
return -EINVAL;
spin_lock_irqsave(&zdev->dma_table_lock, irq_flags);
- if (!zdev->dma_table)
+ if (!zdev->dma_table) {
+ rc = -EINVAL;
goto no_refresh;
+ }
for (i = 0; i < nr_pages; i++) {
- dma_update_cpu_trans(zdev, page_addr, dma_addr, flags);
+ entry = dma_walk_cpu_trans(zdev->dma_table, dma_addr);
+ if (!entry) {
+ rc = -ENOMEM;
+ goto undo_cpu_trans;
+ }
+ dma_update_cpu_trans(entry, page_addr, flags);
page_addr += PAGE_SIZE;
dma_addr += PAGE_SIZE;
}
@@ -175,13 +173,25 @@ static int dma_update_trans(struct zpci_dev *zdev, unsigned long pa,
rc = zpci_refresh_trans((u64) zdev->fh << 32, start_dma_addr,
nr_pages * PAGE_SIZE);
+undo_cpu_trans:
+ if (rc && ((flags & ZPCI_PTE_VALID_MASK) == ZPCI_PTE_VALID)) {
+ flags = ZPCI_PTE_INVALID;
+ while (i-- > 0) {
+ page_addr -= PAGE_SIZE;
+ dma_addr -= PAGE_SIZE;
+ entry = dma_walk_cpu_trans(zdev->dma_table, dma_addr);
+ if (!entry)
+ break;
+ dma_update_cpu_trans(entry, page_addr, flags);
+ }
+ }
no_refresh:
spin_unlock_irqrestore(&zdev->dma_table_lock, irq_flags);
return rc;
}
-static void dma_free_seg_table(unsigned long entry)
+void dma_free_seg_table(unsigned long entry)
{
unsigned long *sto = get_rt_sto(entry);
int sx;
@@ -193,21 +203,18 @@ static void dma_free_seg_table(unsigned long entry)
dma_free_cpu_table(sto);
}
-static void dma_cleanup_tables(struct zpci_dev *zdev)
+void dma_cleanup_tables(unsigned long *table)
{
- unsigned long *table;
int rtx;
- if (!zdev || !zdev->dma_table)
+ if (!table)
return;
- table = zdev->dma_table;
for (rtx = 0; rtx < ZPCI_TABLE_ENTRIES; rtx++)
if (reg_entry_isvalid(table[rtx]))
dma_free_seg_table(table[rtx]);
dma_free_cpu_table(table);
- zdev->dma_table = NULL;
}
static unsigned long __dma_alloc_iommu(struct zpci_dev *zdev,
@@ -262,6 +269,16 @@ out:
spin_unlock_irqrestore(&zdev->iommu_bitmap_lock, flags);
}
+static inline void zpci_err_dma(unsigned long rc, unsigned long addr)
+{
+ struct {
+ unsigned long rc;
+ unsigned long addr;
+ } __packed data = {rc, addr};
+
+ zpci_err_hex(&data, sizeof(data));
+}
+
static dma_addr_t s390_dma_map_pages(struct device *dev, struct page *page,
unsigned long offset, size_t size,
enum dma_data_direction direction,
@@ -272,33 +289,40 @@ static dma_addr_t s390_dma_map_pages(struct device *dev, struct page *page,
unsigned long pa = page_to_phys(page) + offset;
int flags = ZPCI_PTE_VALID;
dma_addr_t dma_addr;
+ int ret;
/* This rounds up number of pages based on size and offset */
nr_pages = iommu_num_pages(pa, size, PAGE_SIZE);
iommu_page_index = dma_alloc_iommu(zdev, nr_pages);
- if (iommu_page_index == -1)
+ if (iommu_page_index == -1) {
+ ret = -ENOSPC;
goto out_err;
+ }
/* Use rounded up size */
size = nr_pages * PAGE_SIZE;
dma_addr = zdev->start_dma + iommu_page_index * PAGE_SIZE;
- if (dma_addr + size > zdev->end_dma)
+ if (dma_addr + size > zdev->end_dma) {
+ ret = -ERANGE;
goto out_free;
+ }
if (direction == DMA_NONE || direction == DMA_TO_DEVICE)
flags |= ZPCI_TABLE_PROTECTED;
- if (!dma_update_trans(zdev, pa, dma_addr, size, flags)) {
- atomic64_add(nr_pages, &zdev->mapped_pages);
- return dma_addr + (offset & ~PAGE_MASK);
- }
+ ret = dma_update_trans(zdev, pa, dma_addr, size, flags);
+ if (ret)
+ goto out_free;
+
+ atomic64_add(nr_pages, &zdev->mapped_pages);
+ return dma_addr + (offset & ~PAGE_MASK);
out_free:
dma_free_iommu(zdev, iommu_page_index, nr_pages);
out_err:
zpci_err("map error:\n");
- zpci_err_hex(&pa, sizeof(pa));
+ zpci_err_dma(ret, pa);
return DMA_ERROR_CODE;
}
@@ -308,14 +332,16 @@ static void s390_dma_unmap_pages(struct device *dev, dma_addr_t dma_addr,
{
struct zpci_dev *zdev = to_zpci(to_pci_dev(dev));
unsigned long iommu_page_index;
- int npages;
+ int npages, ret;
npages = iommu_num_pages(dma_addr, size, PAGE_SIZE);
dma_addr = dma_addr & PAGE_MASK;
- if (dma_update_trans(zdev, 0, dma_addr, npages * PAGE_SIZE,
- ZPCI_TABLE_PROTECTED | ZPCI_PTE_INVALID)) {
+ ret = dma_update_trans(zdev, 0, dma_addr, npages * PAGE_SIZE,
+ ZPCI_PTE_INVALID);
+ if (ret) {
zpci_err("unmap error:\n");
- zpci_err_hex(&dma_addr, sizeof(dma_addr));
+ zpci_err_dma(ret, dma_addr);
+ return;
}
atomic64_add(npages, &zdev->unmapped_pages);
@@ -416,6 +442,13 @@ int zpci_dma_init_device(struct zpci_dev *zdev)
{
int rc;
+ /*
+ * At this point, if the device is part of an IOMMU domain, this would
+ * be a strong hint towards a bug in the IOMMU API (common) code and/or
+ * simultaneous access via IOMMU and DMA API. So let's issue a warning.
+ */
+ WARN_ON(zdev->s390_domain);
+
spin_lock_init(&zdev->iommu_bitmap_lock);
spin_lock_init(&zdev->dma_table_lock);
@@ -450,8 +483,16 @@ out_clean:
void zpci_dma_exit_device(struct zpci_dev *zdev)
{
+ /*
+ * At this point, if the device is part of an IOMMU domain, this would
+ * be a strong hint towards a bug in the IOMMU API (common) code and/or
+ * simultaneous access via IOMMU and DMA API. So let's issue a warning.
+ */
+ WARN_ON(zdev->s390_domain);
+
zpci_unregister_ioat(zdev, 0);
- dma_cleanup_tables(zdev);
+ dma_cleanup_tables(zdev->dma_table);
+ zdev->dma_table = NULL;
vfree(zdev->iommu_bitmap);
zdev->iommu_bitmap = NULL;
zdev->next_bit = 0;