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-rw-r--r--arch/s390/kernel/compat_wrapper.S26
-rw-r--r--arch/s390/kernel/entry.S6
-rw-r--r--arch/s390/kernel/entry64.S6
-rw-r--r--arch/s390/kernel/head.S16
-rw-r--r--arch/s390/kernel/head64.S12
-rw-r--r--arch/s390/kernel/machine_kexec.c7
-rw-r--r--arch/s390/kernel/relocate_kernel.S41
-rw-r--r--arch/s390/kernel/relocate_kernel64.S45
-rw-r--r--arch/s390/kernel/s390_ext.c16
-rw-r--r--arch/s390/kernel/setup.c6
-rw-r--r--arch/s390/kernel/smp.c16
-rw-r--r--arch/s390/kernel/syscalls.S5
-rw-r--r--arch/s390/kernel/traps.c15
13 files changed, 183 insertions, 34 deletions
diff --git a/arch/s390/kernel/compat_wrapper.S b/arch/s390/kernel/compat_wrapper.S
index 799a98eac92d..23fe94e58688 100644
--- a/arch/s390/kernel/compat_wrapper.S
+++ b/arch/s390/kernel/compat_wrapper.S
@@ -1449,3 +1449,29 @@ compat_sys_kexec_load_wrapper:
1449 llgtr %r4,%r4 # struct kexec_segment * 1449 llgtr %r4,%r4 # struct kexec_segment *
1450 llgfr %r5,%r5 # unsigned long 1450 llgfr %r5,%r5 # unsigned long
1451 jg compat_sys_kexec_load 1451 jg compat_sys_kexec_load
1452
1453 .globl sys_ioprio_set_wrapper
1454sys_ioprio_set_wrapper:
1455 lgfr %r2,%r2 # int
1456 lgfr %r3,%r3 # int
1457 lgfr %r4,%r4 # int
1458 jg sys_ioprio_set
1459
1460 .globl sys_ioprio_get_wrapper
1461sys_ioprio_get_wrapper:
1462 lgfr %r2,%r2 # int
1463 lgfr %r3,%r3 # int
1464 jg sys_ioprio_get
1465
1466 .globl sys_inotify_add_watch_wrapper
1467sys_inotify_add_watch_wrapper:
1468 lgfr %r2,%r2 # int
1469 llgtr %r3,%r3 # const char *
1470 llgfr %r4,%r4 # u32
1471 jg sys_inotify_add_watch
1472
1473 .globl sys_inotify_rm_watch_wrapper
1474sys_inotify_rm_watch_wrapper:
1475 lgfr %r2,%r2 # int
1476 llgfr %r3,%r3 # u32
1477 jg sys_inotify_rm_watch
diff --git a/arch/s390/kernel/entry.S b/arch/s390/kernel/entry.S
index 5b262b5d869f..1a271b16cb5c 100644
--- a/arch/s390/kernel/entry.S
+++ b/arch/s390/kernel/entry.S
@@ -690,9 +690,9 @@ mcck_int_handler:
690 bo BASED(0f) 690 bo BASED(0f)
691 spt __LC_LAST_UPDATE_TIMER # revalidate cpu timer 691 spt __LC_LAST_UPDATE_TIMER # revalidate cpu timer
692#ifdef CONFIG_VIRT_CPU_ACCOUNTING 692#ifdef CONFIG_VIRT_CPU_ACCOUNTING
693 mvc __LC_LAST_UPDATE_TIMER(8),__LC_ASYNC_ENTER_TIMER 693 mvc __LC_ASYNC_ENTER_TIMER(8),__LC_LAST_UPDATE_TIMER
694 mvc __LC_LAST_UPDATE_TIMER(8),__LC_SYNC_ENTER_TIMER 694 mvc __LC_SYNC_ENTER_TIMER(8),__LC_LAST_UPDATE_TIMER
695 mvc __LC_LAST_UPDATE_TIMER(8),__LC_EXIT_TIMER 695 mvc __LC_EXIT_TIMER(8),__LC_LAST_UPDATE_TIMER
6960: tm __LC_MCCK_CODE+2,0x08 # mwp of old psw valid? 6960: tm __LC_MCCK_CODE+2,0x08 # mwp of old psw valid?
697 bno BASED(mcck_no_vtime) # no -> skip cleanup critical 697 bno BASED(mcck_no_vtime) # no -> skip cleanup critical
698 tm __LC_MCK_OLD_PSW+1,0x01 # interrupting from user ? 698 tm __LC_MCK_OLD_PSW+1,0x01 # interrupting from user ?
diff --git a/arch/s390/kernel/entry64.S b/arch/s390/kernel/entry64.S
index 57ca75d0ad7f..d9f22915008c 100644
--- a/arch/s390/kernel/entry64.S
+++ b/arch/s390/kernel/entry64.S
@@ -727,9 +727,9 @@ mcck_int_handler:
727 jo 0f 727 jo 0f
728 spt __LC_LAST_UPDATE_TIMER 728 spt __LC_LAST_UPDATE_TIMER
729#ifdef CONFIG_VIRT_CPU_ACCOUNTING 729#ifdef CONFIG_VIRT_CPU_ACCOUNTING
730 mvc __LC_LAST_UPDATE_TIMER(8),__LC_ASYNC_ENTER_TIMER 730 mvc __LC_ASYNC_ENTER_TIMER(8),__LC_LAST_UPDATE_TIMER
731 mvc __LC_LAST_UPDATE_TIMER(8),__LC_SYNC_ENTER_TIMER 731 mvc __LC_SYNC_ENTER_TIMER(8),__LC_LAST_UPDATE_TIMER
732 mvc __LC_LAST_UPDATE_TIMER(8),__LC_EXIT_TIMER 732 mvc __LC_EXIT_TIMER(8),__LC_LAST_UPDATE_TIMER
7330: tm __LC_MCCK_CODE+2,0x08 # mwp of old psw valid? 7330: tm __LC_MCCK_CODE+2,0x08 # mwp of old psw valid?
734 jno mcck_no_vtime # no -> no timer update 734 jno mcck_no_vtime # no -> no timer update
735 tm __LC_MCK_OLD_PSW+1,0x01 # interrupting from user ? 735 tm __LC_MCK_OLD_PSW+1,0x01 # interrupting from user ?
diff --git a/arch/s390/kernel/head.S b/arch/s390/kernel/head.S
index fc8bf5e285f6..2710e66fefba 100644
--- a/arch/s390/kernel/head.S
+++ b/arch/s390/kernel/head.S
@@ -346,6 +346,13 @@ iplstart:
346 la %r2,.Lreset 346 la %r2,.Lreset
347 lhi %r3,26 347 lhi %r3,26
348 diag %r2,%r3,8 348 diag %r2,%r3,8
349 la %r5,.Lirb
350 stsch 0(%r5) # check if irq is pending
351 tm 30(%r5),0x0f # by verifying if any of the
352 bnz .Lwaitforirq # activity or status control
353 tm 31(%r5),0xff # bits is set in the schib
354 bz .Lnoreset
355.Lwaitforirq:
349 mvc 0x78(8),.Lrdrnewpsw # set up IO interrupt psw 356 mvc 0x78(8),.Lrdrnewpsw # set up IO interrupt psw
350.Lwaitrdrirq: 357.Lwaitrdrirq:
351 lpsw .Lrdrwaitpsw 358 lpsw .Lrdrwaitpsw
@@ -535,8 +542,13 @@ startup:basr %r13,0 # get base
535 lhi %r1,0 542 lhi %r1,0
536 icm %r1,3,.Lscpincr1-PARMAREA(%r4) # use this one if != 0 543 icm %r1,3,.Lscpincr1-PARMAREA(%r4) # use this one if != 0
537 jnz .Lscnd 544 jnz .Lscnd
538 l %r1,.Lscpincr2-PARMAREA+4(%r4) # otherwise use this one 545 lhi %r1,0x800 # otherwise report 2GB
539.Lscnd: 546.Lscnd:
547 lhi %r3,0x800 # limit reported memory size to 2GB
548 cr %r1,%r3
549 jl .Lno2gb
550 lr %r1,%r3
551.Lno2gb:
540 xr %r3,%r3 # same logic 552 xr %r3,%r3 # same logic
541 ic %r3,.Lscpa1-PARMAREA(%r4) 553 ic %r3,.Lscpa1-PARMAREA(%r4)
542 chi %r3,0x00 554 chi %r3,0x00
@@ -765,7 +777,7 @@ _stext: basr %r13,0 # get base
765 777
766# check control registers 778# check control registers
767 stctl %c0,%c15,0(%r15) 779 stctl %c0,%c15,0(%r15)
768 oi 2(%r15),0x20 # enable sigp external interrupts 780 oi 2(%r15),0x40 # enable sigp emergency signal
769 oi 0(%r15),0x10 # switch on low address protection 781 oi 0(%r15),0x10 # switch on low address protection
770 lctl %c0,%c15,0(%r15) 782 lctl %c0,%c15,0(%r15)
771 783
diff --git a/arch/s390/kernel/head64.S b/arch/s390/kernel/head64.S
index f525c0c21250..9a8263a153cb 100644
--- a/arch/s390/kernel/head64.S
+++ b/arch/s390/kernel/head64.S
@@ -345,6 +345,13 @@ iplstart:
345 la %r2,.Lreset 345 la %r2,.Lreset
346 lhi %r3,26 346 lhi %r3,26
347 diag %r2,%r3,8 347 diag %r2,%r3,8
348 la %r5,.Lirb
349 stsch 0(%r5) # check if irq is pending
350 tm 30(%r5),0x0f # by verifying if any of the
351 bnz .Lwaitforirq # activity or status control
352 tm 31(%r5),0xff # bits is set in the schib
353 bz .Lnoreset
354.Lwaitforirq:
348 mvc 0x78(8),.Lrdrnewpsw # set up IO interrupt psw 355 mvc 0x78(8),.Lrdrnewpsw # set up IO interrupt psw
349.Lwaitrdrirq: 356.Lwaitrdrirq:
350 lpsw .Lrdrwaitpsw 357 lpsw .Lrdrwaitpsw
@@ -658,10 +665,8 @@ startup:basr %r13,0 # get base
658# 665#
659 la %r1,0f-.LPG1(%r13) # set program check address 666 la %r1,0f-.LPG1(%r13) # set program check address
660 stg %r1,__LC_PGM_NEW_PSW+8 667 stg %r1,__LC_PGM_NEW_PSW+8
661 mvc __LC_DIAG44_OPCODE(8),.Lnop-.LPG1(%r13)
662 diag 0,0,0x44 # test diag 0x44 668 diag 0,0,0x44 # test diag 0x44
663 oi 7(%r12),32 # set diag44 flag 669 oi 7(%r12),32 # set diag44 flag
664 mvc __LC_DIAG44_OPCODE(8),.Ldiag44-.LPG1(%r13)
6650: 6700:
666 671
667# 672#
@@ -702,7 +707,6 @@ startup:basr %r13,0 # get base
702.L4malign:.quad 0xffffffffffc00000 707.L4malign:.quad 0xffffffffffc00000
703.Lscan2g:.quad 0x80000000 + 0x20000 - 8 # 2GB + 128K - 8 708.Lscan2g:.quad 0x80000000 + 0x20000 - 8 # 2GB + 128K - 8
704.Lnop: .long 0x07000700 709.Lnop: .long 0x07000700
705.Ldiag44:.long 0x83000044
706 710
707 .org PARMAREA-64 711 .org PARMAREA-64
708.Lduct: .long 0,0,0,0,0,0,0,0 712.Lduct: .long 0,0,0,0,0,0,0,0
@@ -765,7 +769,7 @@ _stext: basr %r13,0 # get base
765 769
766# check control registers 770# check control registers
767 stctg %c0,%c15,0(%r15) 771 stctg %c0,%c15,0(%r15)
768 oi 6(%r15),0x20 # enable sigp external interrupts 772 oi 6(%r15),0x40 # enable sigp emergency signal
769 oi 4(%r15),0x10 # switch on low address proctection 773 oi 4(%r15),0x10 # switch on low address proctection
770 lctlg %c0,%c15,0(%r15) 774 lctlg %c0,%c15,0(%r15)
771 775
diff --git a/arch/s390/kernel/machine_kexec.c b/arch/s390/kernel/machine_kexec.c
index 2721c3a32b84..5aa71b05b8ae 100644
--- a/arch/s390/kernel/machine_kexec.c
+++ b/arch/s390/kernel/machine_kexec.c
@@ -70,6 +70,8 @@ machine_kexec(struct kimage *image)
70 for (;;); 70 for (;;);
71} 71}
72 72
73extern void pfault_fini(void);
74
73static void 75static void
74kexec_halt_all_cpus(void *kernel_image) 76kexec_halt_all_cpus(void *kernel_image)
75{ 77{
@@ -78,6 +80,11 @@ kexec_halt_all_cpus(void *kernel_image)
78 struct kimage *image; 80 struct kimage *image;
79 relocate_kernel_t data_mover; 81 relocate_kernel_t data_mover;
80 82
83#ifdef CONFIG_PFAULT
84 if (MACHINE_IS_VM)
85 pfault_fini();
86#endif
87
81 if (atomic_compare_and_swap(-1, smp_processor_id(), &cpuid)) 88 if (atomic_compare_and_swap(-1, smp_processor_id(), &cpuid))
82 signal_processor(smp_processor_id(), sigp_stop); 89 signal_processor(smp_processor_id(), sigp_stop);
83 90
diff --git a/arch/s390/kernel/relocate_kernel.S b/arch/s390/kernel/relocate_kernel.S
index d5e4a62fbb79..2a25ec7147ff 100644
--- a/arch/s390/kernel/relocate_kernel.S
+++ b/arch/s390/kernel/relocate_kernel.S
@@ -4,6 +4,7 @@
4 * (C) Copyright IBM Corp. 2005 4 * (C) Copyright IBM Corp. 2005
5 * 5 *
6 * Author(s): Rolf Adelsberger <adelsberger@de.ibm.com> 6 * Author(s): Rolf Adelsberger <adelsberger@de.ibm.com>
7 * Heiko Carstens <heiko.carstens@de.ibm.com>
7 * 8 *
8 */ 9 */
9 10
@@ -25,8 +26,31 @@
25 relocate_kernel: 26 relocate_kernel:
26 basr %r13,0 #base address 27 basr %r13,0 #base address
27 .base: 28 .base:
28 spx zero64-.base(%r13) #absolute addressing mode
29 stnsm sys_msk-.base(%r13),0xf8 #disable DAT and IRQ (external) 29 stnsm sys_msk-.base(%r13),0xf8 #disable DAT and IRQ (external)
30 spx zero64-.base(%r13) #absolute addressing mode
31 stctl %c0,%c15,ctlregs-.base(%r13)
32 stm %r0,%r15,gprregs-.base(%r13)
33 la %r1,load_psw-.base(%r13)
34 mvc 0(8,%r0),0(%r1)
35 la %r0,.back-.base(%r13)
36 st %r0,4(%r0)
37 oi 4(%r0),0x80
38 mvc 0x68(8,%r0),0(%r1)
39 la %r0,.back_pgm-.base(%r13)
40 st %r0,0x6c(%r0)
41 oi 0x6c(%r0),0x80
42 lhi %r0,0
43 diag %r0,%r0,0x308
44 .back:
45 basr %r13,0
46 .back_base:
47 oi have_diag308-.back_base(%r13),0x01
48 lctl %c0,%c15,ctlregs-.back_base(%r13)
49 lm %r0,%r15,gprregs-.back_base(%r13)
50 j .start_reloc
51 .back_pgm:
52 lm %r0,%r15,gprregs-.base(%r13)
53 .start_reloc:
30 lhi %r10,-1 #preparing the mask 54 lhi %r10,-1 #preparing the mask
31 sll %r10,12 #shift it such that it becomes 0xf000 55 sll %r10,12 #shift it such that it becomes 0xf000
32 .top: 56 .top:
@@ -63,6 +87,10 @@
63 o %r3,4(%r4) #or load address into psw 87 o %r3,4(%r4) #or load address into psw
64 st %r3,4(%r4) 88 st %r3,4(%r4)
65 mvc 0(8,%r0),0(%r4) #copy psw to absolute address 0 89 mvc 0(8,%r0),0(%r4) #copy psw to absolute address 0
90 tm have_diag308-.base(%r13),0x01
91 jno .no_diag308
92 diag %r0,%r0,0x308
93 .no_diag308:
66 sr %r1,%r1 #clear %r1 94 sr %r1,%r1 #clear %r1
67 sr %r2,%r2 #clear %r2 95 sr %r2,%r2 #clear %r2
68 sigp %r1,%r2,0x12 #set cpuid to zero 96 sigp %r1,%r2,0x12 #set cpuid to zero
@@ -75,6 +103,17 @@
75 .long 0x00080000,0x80000000 103 .long 0x00080000,0x80000000
76 sys_msk: 104 sys_msk:
77 .quad 0 105 .quad 0
106 ctlregs:
107 .rept 16
108 .long 0
109 .endr
110 gprregs:
111 .rept 16
112 .long 0
113 .endr
114 have_diag308:
115 .byte 0
116 .align 8
78 relocate_kernel_end: 117 relocate_kernel_end:
79 .globl relocate_kernel_len 118 .globl relocate_kernel_len
80 relocate_kernel_len: 119 relocate_kernel_len:
diff --git a/arch/s390/kernel/relocate_kernel64.S b/arch/s390/kernel/relocate_kernel64.S
index 96290cc4eb3c..8cdb86e8911f 100644
--- a/arch/s390/kernel/relocate_kernel64.S
+++ b/arch/s390/kernel/relocate_kernel64.S
@@ -4,6 +4,7 @@
4 * (C) Copyright IBM Corp. 2005 4 * (C) Copyright IBM Corp. 2005
5 * 5 *
6 * Author(s): Rolf Adelsberger <adelsberger@de.ibm.com> 6 * Author(s): Rolf Adelsberger <adelsberger@de.ibm.com>
7 * Heiko Carstens <heiko.carstens@de.ibm.com>
7 * 8 *
8 */ 9 */
9 10
@@ -26,8 +27,34 @@
26 relocate_kernel: 27 relocate_kernel:
27 basr %r13,0 #base address 28 basr %r13,0 #base address
28 .base: 29 .base:
30 stnsm sys_msk-.base(%r13),0xf8 #disable DAT and IRQs
29 spx zero64-.base(%r13) #absolute addressing mode 31 spx zero64-.base(%r13) #absolute addressing mode
30 stnsm sys_msk-.base(%r13),0xf8 #disable DAT and IRQ (external) 32 stctg %c0,%c15,ctlregs-.base(%r13)
33 stmg %r0,%r15,gprregs-.base(%r13)
34 lghi %r0,3
35 sllg %r0,%r0,31
36 stg %r0,0x1d0(%r0)
37 la %r0,.back_pgm-.base(%r13)
38 stg %r0,0x1d8(%r0)
39 la %r1,load_psw-.base(%r13)
40 mvc 0(8,%r0),0(%r1)
41 la %r0,.back-.base(%r13)
42 st %r0,4(%r0)
43 oi 4(%r0),0x80
44 lghi %r0,0
45 diag %r0,%r0,0x308
46 .back:
47 lhi %r1,1 #mode 1 = esame
48 sigp %r1,%r0,0x12 #switch to esame mode
49 sam64 #switch to 64 bit addressing mode
50 basr %r13,0
51 .back_base:
52 oi have_diag308-.back_base(%r13),0x01
53 lctlg %c0,%c15,ctlregs-.back_base(%r13)
54 lmg %r0,%r15,gprregs-.back_base(%r13)
55 j .top
56 .back_pgm:
57 lmg %r0,%r15,gprregs-.base(%r13)
31 .top: 58 .top:
32 lghi %r7,4096 #load PAGE_SIZE in r7 59 lghi %r7,4096 #load PAGE_SIZE in r7
33 lghi %r9,4096 #load PAGE_SIZE in r9 60 lghi %r9,4096 #load PAGE_SIZE in r9
@@ -62,6 +89,10 @@
62 o %r3,4(%r4) #or load address into psw 89 o %r3,4(%r4) #or load address into psw
63 st %r3,4(%r4) 90 st %r3,4(%r4)
64 mvc 0(8,%r0),0(%r4) #copy psw to absolute address 0 91 mvc 0(8,%r0),0(%r4) #copy psw to absolute address 0
92 tm have_diag308-.base(%r13),0x01
93 jno .no_diag308
94 diag %r0,%r0,0x308
95 .no_diag308:
65 sam31 #31 bit mode 96 sam31 #31 bit mode
66 sr %r1,%r1 #erase register r1 97 sr %r1,%r1 #erase register r1
67 sr %r2,%r2 #erase register r2 98 sr %r2,%r2 #erase register r2
@@ -75,8 +106,18 @@
75 .long 0x00080000,0x80000000 106 .long 0x00080000,0x80000000
76 sys_msk: 107 sys_msk:
77 .quad 0 108 .quad 0
109 ctlregs:
110 .rept 16
111 .quad 0
112 .endr
113 gprregs:
114 .rept 16
115 .quad 0
116 .endr
117 have_diag308:
118 .byte 0
119 .align 8
78 relocate_kernel_end: 120 relocate_kernel_end:
79 .globl relocate_kernel_len 121 .globl relocate_kernel_len
80 relocate_kernel_len: 122 relocate_kernel_len:
81 .quad relocate_kernel_end - relocate_kernel 123 .quad relocate_kernel_end - relocate_kernel
82
diff --git a/arch/s390/kernel/s390_ext.c b/arch/s390/kernel/s390_ext.c
index 3bdd38ec71da..207bc511a6e3 100644
--- a/arch/s390/kernel/s390_ext.c
+++ b/arch/s390/kernel/s390_ext.c
@@ -19,7 +19,6 @@
19#include <asm/irq.h> 19#include <asm/irq.h>
20 20
21/* 21/*
22 * Simple hash strategy: index = code & 0xff;
23 * ext_int_hash[index] is the start of the list for all external interrupts 22 * ext_int_hash[index] is the start of the list for all external interrupts
24 * that hash to this index. With the current set of external interrupts 23 * that hash to this index. With the current set of external interrupts
25 * (0x1202 external call, 0x1004 cpu timer, 0x2401 hwc console, 0x4000 24 * (0x1202 external call, 0x1004 cpu timer, 0x2401 hwc console, 0x4000
@@ -27,6 +26,11 @@
27 */ 26 */
28ext_int_info_t *ext_int_hash[256] = { 0, }; 27ext_int_info_t *ext_int_hash[256] = { 0, };
29 28
29static inline int ext_hash(__u16 code)
30{
31 return (code + (code >> 9)) & 0xff;
32}
33
30int register_external_interrupt(__u16 code, ext_int_handler_t handler) 34int register_external_interrupt(__u16 code, ext_int_handler_t handler)
31{ 35{
32 ext_int_info_t *p; 36 ext_int_info_t *p;
@@ -37,7 +41,7 @@ int register_external_interrupt(__u16 code, ext_int_handler_t handler)
37 return -ENOMEM; 41 return -ENOMEM;
38 p->code = code; 42 p->code = code;
39 p->handler = handler; 43 p->handler = handler;
40 index = code & 0xff; 44 index = ext_hash(code);
41 p->next = ext_int_hash[index]; 45 p->next = ext_int_hash[index];
42 ext_int_hash[index] = p; 46 ext_int_hash[index] = p;
43 return 0; 47 return 0;
@@ -52,7 +56,7 @@ int register_early_external_interrupt(__u16 code, ext_int_handler_t handler,
52 return -EINVAL; 56 return -EINVAL;
53 p->code = code; 57 p->code = code;
54 p->handler = handler; 58 p->handler = handler;
55 index = code & 0xff; 59 index = ext_hash(code);
56 p->next = ext_int_hash[index]; 60 p->next = ext_int_hash[index];
57 ext_int_hash[index] = p; 61 ext_int_hash[index] = p;
58 return 0; 62 return 0;
@@ -63,7 +67,7 @@ int unregister_external_interrupt(__u16 code, ext_int_handler_t handler)
63 ext_int_info_t *p, *q; 67 ext_int_info_t *p, *q;
64 int index; 68 int index;
65 69
66 index = code & 0xff; 70 index = ext_hash(code);
67 q = NULL; 71 q = NULL;
68 p = ext_int_hash[index]; 72 p = ext_int_hash[index];
69 while (p != NULL) { 73 while (p != NULL) {
@@ -90,7 +94,7 @@ int unregister_early_external_interrupt(__u16 code, ext_int_handler_t handler,
90 94
91 if (p == NULL || p->code != code || p->handler != handler) 95 if (p == NULL || p->code != code || p->handler != handler)
92 return -EINVAL; 96 return -EINVAL;
93 index = code & 0xff; 97 index = ext_hash(code);
94 q = ext_int_hash[index]; 98 q = ext_int_hash[index];
95 if (p != q) { 99 if (p != q) {
96 while (q != NULL) { 100 while (q != NULL) {
@@ -120,7 +124,7 @@ void do_extint(struct pt_regs *regs, unsigned short code)
120 */ 124 */
121 account_ticks(regs); 125 account_ticks(regs);
122 kstat_cpu(smp_processor_id()).irqs[EXTERNAL_INTERRUPT]++; 126 kstat_cpu(smp_processor_id()).irqs[EXTERNAL_INTERRUPT]++;
123 index = code & 0xff; 127 index = ext_hash(code);
124 for (p = ext_int_hash[index]; p; p = p->next) { 128 for (p = ext_int_hash[index]; p; p = p->next) {
125 if (likely(p->code == code)) { 129 if (likely(p->code == code)) {
126 if (likely(p->handler)) 130 if (likely(p->handler))
diff --git a/arch/s390/kernel/setup.c b/arch/s390/kernel/setup.c
index a12183989a79..5ba5a5485da9 100644
--- a/arch/s390/kernel/setup.c
+++ b/arch/s390/kernel/setup.c
@@ -431,12 +431,6 @@ setup_lowcore(void)
431 ctl_set_bit(14, 29); 431 ctl_set_bit(14, 29);
432 } 432 }
433#endif 433#endif
434#ifdef CONFIG_ARCH_S390X
435 if (MACHINE_HAS_DIAG44)
436 lc->diag44_opcode = 0x83000044;
437 else
438 lc->diag44_opcode = 0x07000700;
439#endif /* CONFIG_ARCH_S390X */
440 set_prefix((u32)(unsigned long) lc); 434 set_prefix((u32)(unsigned long) lc);
441} 435}
442 436
diff --git a/arch/s390/kernel/smp.c b/arch/s390/kernel/smp.c
index 642572a8e334..85222fee4361 100644
--- a/arch/s390/kernel/smp.c
+++ b/arch/s390/kernel/smp.c
@@ -375,7 +375,7 @@ static void smp_ext_bitcall(int cpu, ec_bit_sig sig)
375 * Set signaling bit in lowcore of target cpu and kick it 375 * Set signaling bit in lowcore of target cpu and kick it
376 */ 376 */
377 set_bit(sig, (unsigned long *) &lowcore_ptr[cpu]->ext_call_fast); 377 set_bit(sig, (unsigned long *) &lowcore_ptr[cpu]->ext_call_fast);
378 while(signal_processor(cpu, sigp_external_call) == sigp_busy) 378 while(signal_processor(cpu, sigp_emergency_signal) == sigp_busy)
379 udelay(10); 379 udelay(10);
380} 380}
381 381
@@ -394,7 +394,7 @@ static void smp_ext_bitcall_others(ec_bit_sig sig)
394 * Set signaling bit in lowcore of target cpu and kick it 394 * Set signaling bit in lowcore of target cpu and kick it
395 */ 395 */
396 set_bit(sig, (unsigned long *) &lowcore_ptr[cpu]->ext_call_fast); 396 set_bit(sig, (unsigned long *) &lowcore_ptr[cpu]->ext_call_fast);
397 while (signal_processor(cpu, sigp_external_call) == sigp_busy) 397 while (signal_processor(cpu, sigp_emergency_signal) == sigp_busy)
398 udelay(10); 398 udelay(10);
399 } 399 }
400} 400}
@@ -537,7 +537,8 @@ int __devinit start_secondary(void *cpuvoid)
537#endif 537#endif
538#ifdef CONFIG_PFAULT 538#ifdef CONFIG_PFAULT
539 /* Enable pfault pseudo page faults on this cpu. */ 539 /* Enable pfault pseudo page faults on this cpu. */
540 pfault_init(); 540 if (MACHINE_IS_VM)
541 pfault_init();
541#endif 542#endif
542 /* Mark this cpu as online */ 543 /* Mark this cpu as online */
543 cpu_set(smp_processor_id(), cpu_online_map); 544 cpu_set(smp_processor_id(), cpu_online_map);
@@ -690,7 +691,8 @@ __cpu_disable(void)
690 691
691#ifdef CONFIG_PFAULT 692#ifdef CONFIG_PFAULT
692 /* Disable pfault pseudo page faults on this cpu. */ 693 /* Disable pfault pseudo page faults on this cpu. */
693 pfault_fini(); 694 if (MACHINE_IS_VM)
695 pfault_fini();
694#endif 696#endif
695 697
696 /* disable all external interrupts */ 698 /* disable all external interrupts */
@@ -751,9 +753,9 @@ void __init smp_prepare_cpus(unsigned int max_cpus)
751 unsigned int cpu; 753 unsigned int cpu;
752 int i; 754 int i;
753 755
754 /* request the 0x1202 external interrupt */ 756 /* request the 0x1201 emergency signal external interrupt */
755 if (register_external_interrupt(0x1202, do_ext_call_interrupt) != 0) 757 if (register_external_interrupt(0x1201, do_ext_call_interrupt) != 0)
756 panic("Couldn't request external interrupt 0x1202"); 758 panic("Couldn't request external interrupt 0x1201");
757 smp_check_cpus(max_cpus); 759 smp_check_cpus(max_cpus);
758 memset(lowcore_ptr,0,sizeof(lowcore_ptr)); 760 memset(lowcore_ptr,0,sizeof(lowcore_ptr));
759 /* 761 /*
diff --git a/arch/s390/kernel/syscalls.S b/arch/s390/kernel/syscalls.S
index a8668afb5f87..426d7cafdab3 100644
--- a/arch/s390/kernel/syscalls.S
+++ b/arch/s390/kernel/syscalls.S
@@ -290,3 +290,8 @@ SYSCALL(sys_add_key,sys_add_key,compat_sys_add_key_wrapper)
290SYSCALL(sys_request_key,sys_request_key,compat_sys_request_key_wrapper) 290SYSCALL(sys_request_key,sys_request_key,compat_sys_request_key_wrapper)
291SYSCALL(sys_keyctl,sys_keyctl,compat_sys_keyctl) /* 280 */ 291SYSCALL(sys_keyctl,sys_keyctl,compat_sys_keyctl) /* 280 */
292SYSCALL(sys_waitid,sys_waitid,compat_sys_waitid_wrapper) 292SYSCALL(sys_waitid,sys_waitid,compat_sys_waitid_wrapper)
293SYSCALL(sys_ioprio_set,sys_ioprio_set,sys_ioprio_set_wrapper)
294SYSCALL(sys_ioprio_get,sys_ioprio_get,sys_ioprio_get_wrapper)
295SYSCALL(sys_inotify_init,sys_inotify_init,sys_inotify_init)
296SYSCALL(sys_inotify_add_watch,sys_inotify_add_watch,sys_inotify_add_watch_wrapper)
297SYSCALL(sys_inotify_rm_watch,sys_inotify_rm_watch,sys_inotify_rm_watch_wrapper)
diff --git a/arch/s390/kernel/traps.c b/arch/s390/kernel/traps.c
index bc7b7be7acbe..6b8703ec2ae6 100644
--- a/arch/s390/kernel/traps.c
+++ b/arch/s390/kernel/traps.c
@@ -29,6 +29,7 @@
29#include <linux/delay.h> 29#include <linux/delay.h>
30#include <linux/module.h> 30#include <linux/module.h>
31#include <linux/kallsyms.h> 31#include <linux/kallsyms.h>
32#include <linux/reboot.h>
32 33
33#include <asm/system.h> 34#include <asm/system.h>
34#include <asm/uaccess.h> 35#include <asm/uaccess.h>
@@ -675,6 +676,19 @@ asmlinkage void kernel_stack_overflow(struct pt_regs * regs)
675 panic("Corrupt kernel stack, can't continue."); 676 panic("Corrupt kernel stack, can't continue.");
676} 677}
677 678
679#ifndef CONFIG_ARCH_S390X
680static int
681pagex_reboot_event(struct notifier_block *this, unsigned long event, void *ptr)
682{
683 if (MACHINE_IS_VM)
684 cpcmd("SET PAGEX OFF", NULL, 0, NULL);
685 return NOTIFY_DONE;
686}
687
688static struct notifier_block pagex_reboot_notifier = {
689 .notifier_call = &pagex_reboot_event,
690};
691#endif
678 692
679/* init is done in lowcore.S and head.S */ 693/* init is done in lowcore.S and head.S */
680 694
@@ -735,6 +749,7 @@ void __init trap_init(void)
735 &ext_int_pfault); 749 &ext_int_pfault);
736#endif 750#endif
737#ifndef CONFIG_ARCH_S390X 751#ifndef CONFIG_ARCH_S390X
752 register_reboot_notifier(&pagex_reboot_notifier);
738 cpcmd("SET PAGEX ON", NULL, 0, NULL); 753 cpcmd("SET PAGEX ON", NULL, 0, NULL);
739#endif 754#endif
740 } 755 }
generated by cgit v1.2.2 (git 2.25.0) at 2025-01-19 00:29:55 -0500