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-rw-r--r--arch/s390/kernel/asm-offsets.c9
-rw-r--r--arch/s390/kernel/compat_ptrace.h3
-rw-r--r--arch/s390/kernel/dis.c145
-rw-r--r--arch/s390/kernel/early.c47
-rw-r--r--arch/s390/kernel/entry.S45
-rw-r--r--arch/s390/kernel/entry.h4
-rw-r--r--arch/s390/kernel/entry64.S46
-rw-r--r--arch/s390/kernel/head.S8
-rw-r--r--arch/s390/kernel/kprobes.c9
-rw-r--r--arch/s390/kernel/process.c10
-rw-r--r--arch/s390/kernel/processor.c2
-rw-r--r--arch/s390/kernel/ptrace.c3
-rw-r--r--arch/s390/kernel/s390_ext.c9
-rw-r--r--arch/s390/kernel/setup.c25
-rw-r--r--arch/s390/kernel/smp.c5
-rw-r--r--arch/s390/kernel/sysinfo.c43
-rw-r--r--arch/s390/kernel/time.c17
-rw-r--r--arch/s390/kernel/topology.c105
-rw-r--r--arch/s390/kernel/traps.c173
-rw-r--r--arch/s390/kernel/vdso.c6
-rw-r--r--arch/s390/kernel/vdso32/clock_getres.S6
-rw-r--r--arch/s390/kernel/vdso32/clock_gettime.S4
-rw-r--r--arch/s390/kernel/vdso64/clock_getres.S6
-rw-r--r--arch/s390/kernel/vdso64/clock_gettime.S4
-rw-r--r--arch/s390/kernel/vtime.c3
25 files changed, 420 insertions, 317 deletions
diff --git a/arch/s390/kernel/asm-offsets.c b/arch/s390/kernel/asm-offsets.c
index 5232278d79ad..33982e7ce04d 100644
--- a/arch/s390/kernel/asm-offsets.c
+++ b/arch/s390/kernel/asm-offsets.c
@@ -66,9 +66,9 @@ int main(void)
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));
/* constants used by the vdso */
- DEFINE(CLOCK_REALTIME, CLOCK_REALTIME);
- DEFINE(CLOCK_MONOTONIC, CLOCK_MONOTONIC);
- DEFINE(CLOCK_REALTIME_RES, MONOTONIC_RES_NSEC);
+ DEFINE(__CLOCK_REALTIME, CLOCK_REALTIME);
+ DEFINE(__CLOCK_MONOTONIC, CLOCK_MONOTONIC);
+ DEFINE(__CLOCK_REALTIME_RES, MONOTONIC_RES_NSEC);
BLANK();
/* constants for SIGP */
DEFINE(__SIGP_STOP, sigp_stop);
@@ -84,6 +84,7 @@ int main(void)
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_PER_ATMID, offsetof(struct _lowcore, per_perc_atmid));
DEFINE(__LC_PER_ADDRESS, offsetof(struct _lowcore, per_address));
DEFINE(__LC_PER_ACCESS_ID, offsetof(struct _lowcore, per_access_id));
@@ -142,10 +143,8 @@ int main(void)
DEFINE(__LC_GPREGS_SAVE_AREA, offsetof(struct _lowcore, gpregs_save_area));
DEFINE(__LC_CREGS_SAVE_AREA, offsetof(struct _lowcore, cregs_save_area));
#ifdef CONFIG_32BIT
- DEFINE(__LC_PFAULT_INTPARM, offsetof(struct _lowcore, ext_params));
DEFINE(SAVE_AREA_BASE, offsetof(struct _lowcore, extended_save_area_addr));
#else /* CONFIG_32BIT */
- DEFINE(__LC_PFAULT_INTPARM, offsetof(struct _lowcore, ext_params2));
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));
diff --git a/arch/s390/kernel/compat_ptrace.h b/arch/s390/kernel/compat_ptrace.h
index 123dd660d7fb..3141025724f4 100644
--- a/arch/s390/kernel/compat_ptrace.h
+++ b/arch/s390/kernel/compat_ptrace.h
@@ -51,8 +51,7 @@ struct user_regs_struct32
* watchpoints. This is the way intel does it.
*/
per_struct32 per_info;
- u32 ieee_instruction_pointer;
- /* Used to give failing instruction back to user for ieee exceptions */
+ u32 ieee_instruction_pointer; /* obsolete, always 0 */
};
struct user32 {
diff --git a/arch/s390/kernel/dis.c b/arch/s390/kernel/dis.c
index b39b27d68b45..c83726c9fe03 100644
--- a/arch/s390/kernel/dis.c
+++ b/arch/s390/kernel/dis.c
@@ -113,7 +113,7 @@ enum {
INSTR_INVALID,
INSTR_E,
INSTR_RIE_R0IU, INSTR_RIE_R0UU, INSTR_RIE_RRP, INSTR_RIE_RRPU,
- INSTR_RIE_RRUUU, INSTR_RIE_RUPI, INSTR_RIE_RUPU,
+ INSTR_RIE_RRUUU, INSTR_RIE_RUPI, INSTR_RIE_RUPU, INSTR_RIE_RRI0,
INSTR_RIL_RI, INSTR_RIL_RP, INSTR_RIL_RU, INSTR_RIL_UP,
INSTR_RIS_R0RDU, INSTR_RIS_R0UU, INSTR_RIS_RURDI, INSTR_RIS_RURDU,
INSTR_RI_RI, INSTR_RI_RP, INSTR_RI_RU, INSTR_RI_UP,
@@ -122,13 +122,14 @@ enum {
INSTR_RRE_RR, INSTR_RRE_RR_OPT,
INSTR_RRF_0UFF, INSTR_RRF_F0FF, INSTR_RRF_F0FF2, INSTR_RRF_F0FR,
INSTR_RRF_FFRU, INSTR_RRF_FUFF, INSTR_RRF_M0RR, INSTR_RRF_R0RR,
- INSTR_RRF_RURR, INSTR_RRF_U0FF, INSTR_RRF_U0RF, INSTR_RRF_U0RR,
- INSTR_RRF_UUFF, INSTR_RRR_F0FF, INSTR_RRS_RRRDU,
+ INSTR_RRF_R0RR2, INSTR_RRF_RURR, INSTR_RRF_U0FF, INSTR_RRF_U0RF,
+ INSTR_RRF_U0RR, INSTR_RRF_UUFF, INSTR_RRR_F0FF, INSTR_RRS_RRRDU,
INSTR_RR_FF, INSTR_RR_R0, INSTR_RR_RR, INSTR_RR_U0, INSTR_RR_UR,
INSTR_RSE_CCRD, INSTR_RSE_RRRD, INSTR_RSE_RURD,
INSTR_RSI_RRP,
INSTR_RSL_R0RD,
INSTR_RSY_AARD, INSTR_RSY_CCRD, INSTR_RSY_RRRD, INSTR_RSY_RURD,
+ INSTR_RSY_RDRM,
INSTR_RS_AARD, INSTR_RS_CCRD, INSTR_RS_R0RD, INSTR_RS_RRRD,
INSTR_RS_RURD,
INSTR_RXE_FRRD, INSTR_RXE_RRRD,
@@ -139,7 +140,7 @@ enum {
INSTR_SIY_IRD, INSTR_SIY_URD,
INSTR_SI_URD,
INSTR_SSE_RDRD,
- INSTR_SSF_RRDRD,
+ INSTR_SSF_RRDRD, INSTR_SSF_RRDRD2,
INSTR_SS_L0RDRD, INSTR_SS_LIRDRD, INSTR_SS_LLRDRD, INSTR_SS_RRRDRD,
INSTR_SS_RRRDRD2, INSTR_SS_RRRDRD3,
INSTR_S_00, INSTR_S_RD,
@@ -152,7 +153,7 @@ struct operand {
};
struct insn {
- const char name[6];
+ const char name[5];
unsigned char opfrag;
unsigned char format;
};
@@ -217,6 +218,7 @@ static const unsigned char formats[][7] = {
[INSTR_RIE_RRP] = { 0xff, R_8,R_12,J16_16,0,0,0 },
[INSTR_RIE_RRUUU] = { 0xff, R_8,R_12,U8_16,U8_24,U8_32,0 },
[INSTR_RIE_RUPI] = { 0xff, R_8,I8_32,U4_12,J16_16,0,0 },
+ [INSTR_RIE_RRI0] = { 0xff, R_8,R_12,I16_16,0,0,0 },
[INSTR_RIL_RI] = { 0x0f, R_8,I32_16,0,0,0,0 },
[INSTR_RIL_RP] = { 0x0f, R_8,J32_16,0,0,0,0 },
[INSTR_RIL_RU] = { 0x0f, R_8,U32_16,0,0,0,0 },
@@ -248,6 +250,7 @@ static const unsigned char formats[][7] = {
[INSTR_RRF_FUFF] = { 0xff, F_24,F_16,F_28,U4_20,0,0 },
[INSTR_RRF_M0RR] = { 0xff, R_24,R_28,M_16,0,0,0 },
[INSTR_RRF_R0RR] = { 0xff, R_24,R_16,R_28,0,0,0 },
+ [INSTR_RRF_R0RR2] = { 0xff, R_24,R_28,R_16,0,0,0 },
[INSTR_RRF_RURR] = { 0xff, R_24,R_28,R_16,U4_20,0,0 },
[INSTR_RRF_U0FF] = { 0xff, F_24,U4_16,F_28,0,0,0 },
[INSTR_RRF_U0RF] = { 0xff, R_24,U4_16,F_28,0,0,0 },
@@ -269,6 +272,7 @@ static const unsigned char formats[][7] = {
[INSTR_RSY_CCRD] = { 0xff, C_8,C_12,D20_20,B_16,0,0 },
[INSTR_RSY_RRRD] = { 0xff, R_8,R_12,D20_20,B_16,0,0 },
[INSTR_RSY_RURD] = { 0xff, R_8,U4_12,D20_20,B_16,0,0 },
+ [INSTR_RSY_RDRM] = { 0xff, R_8,D20_20,B_16,U4_12,0,0 },
[INSTR_RS_AARD] = { 0xff, A_8,A_12,D_20,B_16,0,0 },
[INSTR_RS_CCRD] = { 0xff, C_8,C_12,D_20,B_16,0,0 },
[INSTR_RS_R0RD] = { 0xff, R_8,D_20,B_16,0,0,0 },
@@ -290,6 +294,7 @@ static const unsigned char formats[][7] = {
[INSTR_SI_URD] = { 0xff, D_20,B_16,U8_8,0,0,0 },
[INSTR_SSE_RDRD] = { 0xff, D_20,B_16,D_36,B_32,0,0 },
[INSTR_SSF_RRDRD] = { 0x00, D_20,B_16,D_36,B_32,R_8,0 },
+ [INSTR_SSF_RRDRD2]= { 0x00, R_8,D_20,B_16,D_36,B_32,0 },
[INSTR_SS_L0RDRD] = { 0xff, D_20,L8_8,B_16,D_36,B_32,0 },
[INSTR_SS_LIRDRD] = { 0xff, D_20,L4_8,B_16,D_36,B_32,U4_12 },
[INSTR_SS_LLRDRD] = { 0xff, D_20,L4_8,B_16,D_36,L4_12,B_32 },
@@ -300,6 +305,36 @@ static const unsigned char formats[][7] = {
[INSTR_S_RD] = { 0xff, D_20,B_16,0,0,0,0 },
};
+enum {
+ LONG_INSN_ALGHSIK,
+ LONG_INSN_ALHSIK,
+ LONG_INSN_CLFHSI,
+ LONG_INSN_CLGFRL,
+ LONG_INSN_CLGHRL,
+ LONG_INSN_CLGHSI,
+ LONG_INSN_CLHHSI,
+ LONG_INSN_LLGFRL,
+ LONG_INSN_LLGHRL,
+ LONG_INSN_POPCNT,
+ LONG_INSN_RISBHG,
+ LONG_INSN_RISBLG,
+};
+
+static char *long_insn_name[] = {
+ [LONG_INSN_ALGHSIK] = "alghsik",
+ [LONG_INSN_ALHSIK] = "alhsik",
+ [LONG_INSN_CLFHSI] = "clfhsi",
+ [LONG_INSN_CLGFRL] = "clgfrl",
+ [LONG_INSN_CLGHRL] = "clghrl",
+ [LONG_INSN_CLGHSI] = "clghsi",
+ [LONG_INSN_CLHHSI] = "clhhsi",
+ [LONG_INSN_LLGFRL] = "llgfrl",
+ [LONG_INSN_LLGHRL] = "llghrl",
+ [LONG_INSN_POPCNT] = "popcnt",
+ [LONG_INSN_RISBHG] = "risbhg",
+ [LONG_INSN_RISBLG] = "risblk",
+};
+
static struct insn opcode[] = {
#ifdef CONFIG_64BIT
{ "lmd", 0xef, INSTR_SS_RRRDRD3 },
@@ -881,6 +916,35 @@ static struct insn opcode_b9[] = {
{ "pfmf", 0xaf, INSTR_RRE_RR },
{ "trte", 0xbf, INSTR_RRF_M0RR },
{ "trtre", 0xbd, INSTR_RRF_M0RR },
+ { "ahhhr", 0xc8, INSTR_RRF_R0RR2 },
+ { "shhhr", 0xc9, INSTR_RRF_R0RR2 },
+ { "alhhh", 0xca, INSTR_RRF_R0RR2 },
+ { "alhhl", 0xca, INSTR_RRF_R0RR2 },
+ { "slhhh", 0xcb, INSTR_RRF_R0RR2 },
+ { "chhr ", 0xcd, INSTR_RRE_RR },
+ { "clhhr", 0xcf, INSTR_RRE_RR },
+ { "ahhlr", 0xd8, INSTR_RRF_R0RR2 },
+ { "shhlr", 0xd9, INSTR_RRF_R0RR2 },
+ { "slhhl", 0xdb, INSTR_RRF_R0RR2 },
+ { "chlr", 0xdd, INSTR_RRE_RR },
+ { "clhlr", 0xdf, INSTR_RRE_RR },
+ { { 0, LONG_INSN_POPCNT }, 0xe1, INSTR_RRE_RR },
+ { "locgr", 0xe2, INSTR_RRF_M0RR },
+ { "ngrk", 0xe4, INSTR_RRF_R0RR2 },
+ { "ogrk", 0xe6, INSTR_RRF_R0RR2 },
+ { "xgrk", 0xe7, INSTR_RRF_R0RR2 },
+ { "agrk", 0xe8, INSTR_RRF_R0RR2 },
+ { "sgrk", 0xe9, INSTR_RRF_R0RR2 },
+ { "algrk", 0xea, INSTR_RRF_R0RR2 },
+ { "slgrk", 0xeb, INSTR_RRF_R0RR2 },
+ { "locr", 0xf2, INSTR_RRF_M0RR },
+ { "nrk", 0xf4, INSTR_RRF_R0RR2 },
+ { "ork", 0xf6, INSTR_RRF_R0RR2 },
+ { "xrk", 0xf7, INSTR_RRF_R0RR2 },
+ { "ark", 0xf8, INSTR_RRF_R0RR2 },
+ { "srk", 0xf9, INSTR_RRF_R0RR2 },
+ { "alrk", 0xfa, INSTR_RRF_R0RR2 },
+ { "slrk", 0xfb, INSTR_RRF_R0RR2 },
#endif
{ "kmac", 0x1e, INSTR_RRE_RR },
{ "lrvr", 0x1f, INSTR_RRE_RR },
@@ -949,9 +1013,9 @@ static struct insn opcode_c4[] = {
{ "lgfrl", 0x0c, INSTR_RIL_RP },
{ "lhrl", 0x05, INSTR_RIL_RP },
{ "lghrl", 0x04, INSTR_RIL_RP },
- { "llgfrl", 0x0e, INSTR_RIL_RP },
+ { { 0, LONG_INSN_LLGFRL }, 0x0e, INSTR_RIL_RP },
{ "llhrl", 0x02, INSTR_RIL_RP },
- { "llghrl", 0x06, INSTR_RIL_RP },
+ { { 0, LONG_INSN_LLGHRL }, 0x06, INSTR_RIL_RP },
{ "strl", 0x0f, INSTR_RIL_RP },
{ "stgrl", 0x0b, INSTR_RIL_RP },
{ "sthrl", 0x07, INSTR_RIL_RP },
@@ -968,9 +1032,9 @@ static struct insn opcode_c6[] = {
{ "cghrl", 0x04, INSTR_RIL_RP },
{ "clrl", 0x0f, INSTR_RIL_RP },
{ "clgrl", 0x0a, INSTR_RIL_RP },
- { "clgfrl", 0x0e, INSTR_RIL_RP },
+ { { 0, LONG_INSN_CLGFRL }, 0x0e, INSTR_RIL_RP },
{ "clhrl", 0x07, INSTR_RIL_RP },
- { "clghrl", 0x06, INSTR_RIL_RP },
+ { { 0, LONG_INSN_CLGHRL }, 0x06, INSTR_RIL_RP },
{ "pfdrl", 0x02, INSTR_RIL_UP },
{ "exrl", 0x00, INSTR_RIL_RP },
#endif
@@ -982,6 +1046,20 @@ static struct insn opcode_c8[] = {
{ "mvcos", 0x00, INSTR_SSF_RRDRD },
{ "ectg", 0x01, INSTR_SSF_RRDRD },
{ "csst", 0x02, INSTR_SSF_RRDRD },
+ { "lpd", 0x04, INSTR_SSF_RRDRD2 },
+ { "lpdg ", 0x05, INSTR_SSF_RRDRD2 },
+#endif
+ { "", 0, INSTR_INVALID }
+};
+
+static struct insn opcode_cc[] = {
+#ifdef CONFIG_64BIT
+ { "brcth", 0x06, INSTR_RIL_RP },
+ { "aih", 0x08, INSTR_RIL_RI },
+ { "alsih", 0x0a, INSTR_RIL_RI },
+ { "alsih", 0x0b, INSTR_RIL_RI },
+ { "cih", 0x0d, INSTR_RIL_RI },
+ { "clih ", 0x0f, INSTR_RIL_RI },
#endif
{ "", 0, INSTR_INVALID }
};
@@ -1063,6 +1141,16 @@ static struct insn opcode_e3[] = {
{ "mfy", 0x5c, INSTR_RXY_RRRD },
{ "mhy", 0x7c, INSTR_RXY_RRRD },
{ "pfd", 0x36, INSTR_RXY_URRD },
+ { "lbh", 0xc0, INSTR_RXY_RRRD },
+ { "llch", 0xc2, INSTR_RXY_RRRD },
+ { "stch", 0xc3, INSTR_RXY_RRRD },
+ { "lhh", 0xc4, INSTR_RXY_RRRD },
+ { "llhh", 0xc6, INSTR_RXY_RRRD },
+ { "sthh", 0xc7, INSTR_RXY_RRRD },
+ { "lfh", 0xca, INSTR_RXY_RRRD },
+ { "stfh", 0xcb, INSTR_RXY_RRRD },
+ { "chf", 0xcd, INSTR_RXY_RRRD },
+ { "clhf", 0xcf, INSTR_RXY_RRRD },
#endif
{ "lrv", 0x1e, INSTR_RXY_RRRD },
{ "lrvh", 0x1f, INSTR_RXY_RRRD },
@@ -1080,9 +1168,9 @@ static struct insn opcode_e5[] = {
{ "chhsi", 0x54, INSTR_SIL_RDI },
{ "chsi", 0x5c, INSTR_SIL_RDI },
{ "cghsi", 0x58, INSTR_SIL_RDI },
- { "clhhsi", 0x55, INSTR_SIL_RDU },
- { "clfhsi", 0x5d, INSTR_SIL_RDU },
- { "clghsi", 0x59, INSTR_SIL_RDU },
+ { { 0, LONG_INSN_CLHHSI }, 0x55, INSTR_SIL_RDU },
+ { { 0, LONG_INSN_CLFHSI }, 0x5d, INSTR_SIL_RDU },
+ { { 0, LONG_INSN_CLGHSI }, 0x59, INSTR_SIL_RDU },
{ "mvhhi", 0x44, INSTR_SIL_RDI },
{ "mvhi", 0x4c, INSTR_SIL_RDI },
{ "mvghi", 0x48, INSTR_SIL_RDI },
@@ -1137,6 +1225,24 @@ static struct insn opcode_eb[] = {
{ "alsi", 0x6e, INSTR_SIY_IRD },
{ "algsi", 0x7e, INSTR_SIY_IRD },
{ "ecag", 0x4c, INSTR_RSY_RRRD },
+ { "srak", 0xdc, INSTR_RSY_RRRD },
+ { "slak", 0xdd, INSTR_RSY_RRRD },
+ { "srlk", 0xde, INSTR_RSY_RRRD },
+ { "sllk", 0xdf, INSTR_RSY_RRRD },
+ { "locg", 0xe2, INSTR_RSY_RDRM },
+ { "stocg", 0xe3, INSTR_RSY_RDRM },
+ { "lang", 0xe4, INSTR_RSY_RRRD },
+ { "laog", 0xe6, INSTR_RSY_RRRD },
+ { "laxg", 0xe7, INSTR_RSY_RRRD },
+ { "laag", 0xe8, INSTR_RSY_RRRD },
+ { "laalg", 0xea, INSTR_RSY_RRRD },
+ { "loc", 0xf2, INSTR_RSY_RDRM },
+ { "stoc", 0xf3, INSTR_RSY_RDRM },
+ { "lan", 0xf4, INSTR_RSY_RRRD },
+ { "lao", 0xf6, INSTR_RSY_RRRD },
+ { "lax", 0xf7, INSTR_RSY_RRRD },
+ { "laa", 0xf8, INSTR_RSY_RRRD },
+ { "laal", 0xfa, INSTR_RSY_RRRD },
#endif
{ "rll", 0x1d, INSTR_RSY_RRRD },
{ "mvclu", 0x8e, INSTR_RSY_RRRD },
@@ -1172,6 +1278,12 @@ static struct insn opcode_ec[] = {
{ "rxsbg", 0x57, INSTR_RIE_RRUUU },
{ "rosbg", 0x56, INSTR_RIE_RRUUU },
{ "risbg", 0x55, INSTR_RIE_RRUUU },
+ { { 0, LONG_INSN_RISBLG }, 0x51, INSTR_RIE_RRUUU },
+ { { 0, LONG_INSN_RISBHG }, 0x5D, INSTR_RIE_RRUUU },
+ { "ahik", 0xd8, INSTR_RIE_RRI0 },
+ { "aghik", 0xd9, INSTR_RIE_RRI0 },
+ { { 0, LONG_INSN_ALHSIK }, 0xda, INSTR_RIE_RRI0 },
+ { { 0, LONG_INSN_ALGHSIK }, 0xdb, INSTR_RIE_RRI0 },
#endif
{ "", 0, INSTR_INVALID }
};
@@ -1321,6 +1433,9 @@ static struct insn *find_insn(unsigned char *code)
case 0xc8:
table = opcode_c8;
break;
+ case 0xcc:
+ table = opcode_cc;
+ break;
case 0xe3:
table = opcode_e3;
opfrag = code[5];
@@ -1367,7 +1482,11 @@ static int print_insn(char *buffer, unsigned char *code, unsigned long addr)
ptr = buffer;
insn = find_insn(code);
if (insn) {
- ptr += sprintf(ptr, "%.5s\t", insn->name);
+ if (insn->name[0] == '\0')
+ ptr += sprintf(ptr, "%s\t",
+ long_insn_name[(int) insn->name[1]]);
+ else
+ ptr += sprintf(ptr, "%.5s\t", insn->name);
/* Extract the operands. */
separator = 0;
for (ops = formats[insn->format] + 1, i = 0;
diff --git a/arch/s390/kernel/early.c b/arch/s390/kernel/early.c
index c00856ad4e5a..3b7e7dddc324 100644
--- a/arch/s390/kernel/early.c
+++ b/arch/s390/kernel/early.c
@@ -208,7 +208,8 @@ static noinline __init void init_kernel_storage_key(void)
end_pfn = PFN_UP(__pa(&_end));
for (init_pfn = 0 ; init_pfn < end_pfn; init_pfn++)
- page_set_storage_key(init_pfn << PAGE_SHIFT, PAGE_DEFAULT_KEY);
+ page_set_storage_key(init_pfn << PAGE_SHIFT,
+ PAGE_DEFAULT_KEY, 0);
}
static __initdata struct sysinfo_3_2_2 vmms __aligned(PAGE_SIZE);
@@ -255,13 +256,33 @@ static noinline __init void setup_lowcore_early(void)
s390_base_pgm_handler_fn = early_pgm_check_handler;
}
+static noinline __init void setup_facility_list(void)
+{
+ unsigned long nr;
+
+ S390_lowcore.stfl_fac_list = 0;
+ asm volatile(
+ " .insn s,0xb2b10000,0(0)\n" /* stfl */
+ "0:\n"
+ EX_TABLE(0b,0b) : "=m" (S390_lowcore.stfl_fac_list));
+ memcpy(&S390_lowcore.stfle_fac_list, &S390_lowcore.stfl_fac_list, 4);
+ nr = 4; /* # bytes stored by stfl */
+ if (test_facility(7)) {
+ /* More facility bits available with stfle */
+ register unsigned long reg0 asm("0") = MAX_FACILITY_BIT/64 - 1;
+ asm volatile(".insn s,0xb2b00000,%0" /* stfle */
+ : "=m" (S390_lowcore.stfle_fac_list), "+d" (reg0)
+ : : "cc");
+ nr = (reg0 + 1) * 8; /* # bytes stored by stfle */
+ }
+ memset((char *) S390_lowcore.stfle_fac_list + nr, 0,
+ MAX_FACILITY_BIT/8 - nr);
+}
+
static noinline __init void setup_hpage(void)
{
#ifndef CONFIG_DEBUG_PAGEALLOC
- unsigned int facilities;
-
- facilities = stfl();
- if (!(facilities & (1UL << 23)) || !(facilities & (1UL << 29)))
+ if (!test_facility(2) || !test_facility(8))
return;
S390_lowcore.machine_flags |= MACHINE_FLAG_HPAGE;
__ctl_set_bit(0, 23);
@@ -355,18 +376,15 @@ static __init void detect_diag44(void)
static __init void detect_machine_facilities(void)
{
#ifdef CONFIG_64BIT
- unsigned int facilities;
- unsigned long long facility_bits;
-
- facilities = stfl();
- if (facilities & (1 << 28))
+ if (test_facility(3))
S390_lowcore.machine_flags |= MACHINE_FLAG_IDTE;
- if (facilities & (1 << 23))
+ if (test_facility(8))
S390_lowcore.machine_flags |= MACHINE_FLAG_PFMF;
- if (facilities & (1 << 4))
+ if (test_facility(11))
+ S390_lowcore.machine_flags |= MACHINE_FLAG_TOPOLOGY;
+ if (test_facility(27))
S390_lowcore.machine_flags |= MACHINE_FLAG_MVCOS;
- if ((stfle(&facility_bits, 1) > 0) &&
- (facility_bits & (1ULL << (63 - 40))))
+ if (test_facility(40))
S390_lowcore.machine_flags |= MACHINE_FLAG_SPP;
#endif
}
@@ -447,6 +465,7 @@ void __init startup_init(void)
lockdep_off();
sort_main_extable();
setup_lowcore_early();
+ setup_facility_list();
detect_machine_type();
ipl_update_parameters();
setup_boot_command_line();
diff --git a/arch/s390/kernel/entry.S b/arch/s390/kernel/entry.S
index bea9ee37ac9d..1ecc337fb679 100644
--- a/arch/s390/kernel/entry.S
+++ b/arch/s390/kernel/entry.S
@@ -72,25 +72,9 @@ STACK_SIZE = 1 << STACK_SHIFT
l %r1,BASED(.Ltrace_irq_off_caller)
basr %r14,%r1
.endm
-
- .macro TRACE_IRQS_CHECK_ON
- tm SP_PSW(%r15),0x03 # irqs enabled?
- bz BASED(0f)
- TRACE_IRQS_ON
-0:
- .endm
-
- .macro TRACE_IRQS_CHECK_OFF
- tm SP_PSW(%r15),0x03 # irqs enabled?
- bz BASED(0f)
- TRACE_IRQS_OFF
-0:
- .endm
#else
#define TRACE_IRQS_ON
#define TRACE_IRQS_OFF
-#define TRACE_IRQS_CHECK_ON
-#define TRACE_IRQS_CHECK_OFF
#endif
#ifdef CONFIG_LOCKDEP
@@ -198,6 +182,12 @@ STACK_SIZE = 1 << STACK_SHIFT
lpsw \psworg # back to caller
.endm
+ .macro REENABLE_IRQS
+ mvc __SF_EMPTY(1,%r15),SP_PSW(%r15)
+ ni __SF_EMPTY(%r15),0xbf
+ ssm __SF_EMPTY(%r15)
+ .endm
+
/*
* Scheduler resume function, called by switch_to
* gpr2 = (task_struct *) prev
@@ -264,12 +254,11 @@ sysc_do_svc:
bnl BASED(sysc_nr_ok)
lr %r7,%r1 # copy svc number to %r7
sysc_nr_ok:
- mvc SP_ARGS(4,%r15),SP_R7(%r15)
-sysc_do_restart:
sth %r7,SP_SVCNR(%r15)
sll %r7,2 # svc number *4
l %r8,BASED(.Lsysc_table)
tm __TI_flags+2(%r9),_TIF_SYSCALL
+ mvc SP_ARGS(4,%r15),SP_R7(%r15)
l %r8,0(%r7,%r8) # get system call addr.
bnz BASED(sysc_tracesys)
basr %r14,%r8 # call sys_xxxx
@@ -357,7 +346,7 @@ sysc_restart:
l %r7,SP_R2(%r15) # load new svc number
mvc SP_R2(4,%r15),SP_ORIG_R2(%r15) # restore first argument
lm %r2,%r6,SP_R2(%r15) # load svc arguments
- b BASED(sysc_do_restart) # restart svc
+ b BASED(sysc_nr_ok) # restart svc
#
# _TIF_SINGLE_STEP is set, call do_single_step
@@ -390,6 +379,7 @@ sysc_tracesys:
l %r8,0(%r7,%r8)
sysc_tracego:
lm %r3,%r6,SP_R3(%r15)
+ mvc SP_ARGS(4,%r15),SP_R7(%r15)
l %r2,SP_ORIG_R2(%r15)
basr %r14,%r8 # call sys_xxx
st %r2,SP_R2(%r15) # store return value
@@ -440,13 +430,11 @@ kernel_execve:
br %r14
# execve succeeded.
0: stnsm __SF_EMPTY(%r15),0xfc # disable interrupts
- TRACE_IRQS_OFF
l %r15,__LC_KERNEL_STACK # load ksp
s %r15,BASED(.Lc_spsize) # make room for registers & psw
l %r9,__LC_THREAD_INFO
mvc SP_PTREGS(__PT_SIZE,%r15),0(%r12) # copy pt_regs
xc __SF_BACKCHAIN(4,%r15),__SF_BACKCHAIN(%r15)
- TRACE_IRQS_ON
stosm __SF_EMPTY(%r15),0x03 # reenable interrupts
l %r1,BASED(.Lexecve_tail)
basr %r14,%r1
@@ -483,9 +471,10 @@ pgm_check_handler:
UPDATE_VTIME __LC_LAST_UPDATE_TIMER,__LC_EXIT_TIMER,__LC_SYSTEM_TIMER
mvc __LC_LAST_UPDATE_TIMER(8),__LC_SYNC_ENTER_TIMER
pgm_no_vtime:
- TRACE_IRQS_CHECK_OFF
l %r9,__LC_THREAD_INFO # load pointer to thread_info struct
l %r3,__LC_PGM_ILC # load program interruption code
+ l %r4,__LC_TRANS_EXC_CODE
+ REENABLE_IRQS
la %r8,0x7f
nr %r8,%r3
pgm_do_call:
@@ -495,7 +484,6 @@ pgm_do_call:
la %r2,SP_PTREGS(%r15) # address of register-save area
basr %r14,%r7 # branch to interrupt-handler
pgm_exit:
- TRACE_IRQS_CHECK_ON
b BASED(sysc_return)
#
@@ -523,7 +511,6 @@ pgm_per_std:
UPDATE_VTIME __LC_LAST_UPDATE_TIMER,__LC_EXIT_TIMER,__LC_SYSTEM_TIMER
mvc __LC_LAST_UPDATE_TIMER(8),__LC_SYNC_ENTER_TIMER
pgm_no_vtime2:
- TRACE_IRQS_CHECK_OFF
l %r9,__LC_THREAD_INFO # load pointer to thread_info struct
l %r1,__TI_task(%r9)
tm SP_PSW+1(%r15),0x01 # kernel per event ?
@@ -533,6 +520,8 @@ pgm_no_vtime2:
mvc __THREAD_per+__PER_access_id(1,%r1),__LC_PER_ACCESS_ID
oi __TI_flags+3(%r9),_TIF_SINGLE_STEP # set TIF_SINGLE_STEP
l %r3,__LC_PGM_ILC # load program interruption code
+ l %r4,__LC_TRANS_EXC_CODE
+ REENABLE_IRQS
la %r8,0x7f
nr %r8,%r3 # clear per-event-bit and ilc
be BASED(pgm_exit2) # only per or per+check ?
@@ -542,8 +531,6 @@ pgm_no_vtime2:
la %r2,SP_PTREGS(%r15) # address of register-save area
basr %r14,%r7 # branch to interrupt-handler
pgm_exit2:
- TRACE_IRQS_ON
- stosm __SF_EMPTY(%r15),0x03 # reenable interrupts
b BASED(sysc_return)
#
@@ -557,13 +544,11 @@ pgm_svcper:
mvc __LC_LAST_UPDATE_TIMER(8),__LC_SYNC_ENTER_TIMER
lh %r7,0x8a # get svc number from lowcore
l %r9,__LC_THREAD_INFO # load pointer to thread_info struct
- TRACE_IRQS_OFF
l %r8,__TI_task(%r9)
mvc __THREAD_per+__PER_atmid(2,%r8),__LC_PER_ATMID
mvc __THREAD_per+__PER_address(4,%r8),__LC_PER_ADDRESS
mvc __THREAD_per+__PER_access_id(1,%r8),__LC_PER_ACCESS_ID
oi __TI_flags+3(%r9),_TIF_SINGLE_STEP # set TIF_SINGLE_STEP
- TRACE_IRQS_ON
stosm __SF_EMPTY(%r15),0x03 # reenable interrupts
lm %r2,%r6,SP_R2(%r15) # load svc arguments
b BASED(sysc_do_svc)
@@ -572,6 +557,7 @@ pgm_svcper:
# per was called from kernel, must be kprobes
#
kernel_per:
+ REENABLE_IRQS
mvi SP_SVCNR(%r15),0xff # set trap indication to pgm check
mvi SP_SVCNR+1(%r15),0xff
la %r2,SP_PTREGS(%r15) # address of register-save area
@@ -737,7 +723,8 @@ ext_no_vtime:
l %r9,__LC_THREAD_INFO # load pointer to thread_info struct
TRACE_IRQS_OFF
la %r2,SP_PTREGS(%r15) # address of register-save area
- lh %r3,__LC_EXT_INT_CODE # get interruption code
+ l %r3,__LC_CPU_ADDRESS # get cpu address + interruption code
+ l %r4,__LC_EXT_PARAMS # get external parameters
l %r1,BASED(.Ldo_extint)
basr %r14,%r1
b BASED(io_return)
diff --git a/arch/s390/kernel/entry.h b/arch/s390/kernel/entry.h
index ff579b6bde06..95c1dfc4ef31 100644
--- a/arch/s390/kernel/entry.h
+++ b/arch/s390/kernel/entry.h
@@ -5,7 +5,7 @@
#include <linux/signal.h>
#include <asm/ptrace.h>
-typedef void pgm_check_handler_t(struct pt_regs *, long);
+typedef void pgm_check_handler_t(struct pt_regs *, long, unsigned long);
extern pgm_check_handler_t *pgm_check_table[128];
pgm_check_handler_t do_protection_exception;
pgm_check_handler_t do_dat_exception;
@@ -19,7 +19,7 @@ void do_signal(struct pt_regs *regs);
int handle_signal32(unsigned long sig, struct k_sigaction *ka,
siginfo_t *info, sigset_t *oldset, struct pt_regs *regs);
-void do_extint(struct pt_regs *regs, unsigned short code);
+void do_extint(struct pt_regs *regs, unsigned int, unsigned int, unsigned long);
int __cpuinit start_secondary(void *cpuvoid);
void __init startup_init(void);
void die(const char * str, struct pt_regs * regs, long err);
diff --git a/arch/s390/kernel/entry64.S b/arch/s390/kernel/entry64.S
index 8bccec15ea90..8f3e802174db 100644
--- a/arch/s390/kernel/entry64.S
+++ b/arch/s390/kernel/entry64.S
@@ -79,25 +79,9 @@ _TIF_SYSCALL = (_TIF_SYSCALL_TRACE>>8 | _TIF_SYSCALL_AUDIT>>8 | \
basr %r2,%r0
brasl %r14,trace_hardirqs_off_caller
.endm
-
- .macro TRACE_IRQS_CHECK_ON
- tm SP_PSW(%r15),0x03 # irqs enabled?
- jz 0f
- TRACE_IRQS_ON
-0:
- .endm
-
- .macro TRACE_IRQS_CHECK_OFF
- tm SP_PSW(%r15),0x03 # irqs enabled?
- jz 0f
- TRACE_IRQS_OFF
-0:
- .endm
#else
#define TRACE_IRQS_ON
#define TRACE_IRQS_OFF
-#define TRACE_IRQS_CHECK_ON
-#define TRACE_IRQS_CHECK_OFF
#endif
#ifdef CONFIG_LOCKDEP
@@ -207,6 +191,12 @@ _TIF_SYSCALL = (_TIF_SYSCALL_TRACE>>8 | _TIF_SYSCALL_AUDIT>>8 | \
0:
.endm
+ .macro REENABLE_IRQS
+ mvc __SF_EMPTY(1,%r15),SP_PSW(%r15)
+ ni __SF_EMPTY(%r15),0xbf
+ ssm __SF_EMPTY(%r15)
+ .endm
+
/*
* Scheduler resume function, called by switch_to
* gpr2 = (task_struct *) prev
@@ -256,7 +246,6 @@ sysc_saveall:
CREATE_STACK_FRAME __LC_SAVE_AREA
mvc SP_PSW(16,%r15),__LC_SVC_OLD_PSW
mvc SP_ILC(4,%r15),__LC_SVC_ILC
- stg %r7,SP_ARGS(%r15)
lg %r12,__LC_THREAD_INFO # load pointer to thread_info struct
sysc_vtime:
UPDATE_VTIME __LC_EXIT_TIMER,__LC_SYNC_ENTER_TIMER,__LC_USER_TIMER
@@ -284,6 +273,7 @@ sysc_nr_ok:
sysc_noemu:
#endif
tm __TI_flags+6(%r12),_TIF_SYSCALL
+ mvc SP_ARGS(8,%r15),SP_R7(%r15)
lgf %r8,0(%r7,%r10) # load address of system call routine
jnz sysc_tracesys
basr %r14,%r8 # call sys_xxxx
@@ -397,6 +387,7 @@ sysc_tracesys:
lgf %r8,0(%r7,%r10)
sysc_tracego:
lmg %r3,%r6,SP_R3(%r15)
+ mvc SP_ARGS(8,%r15),SP_R7(%r15)
lg %r2,SP_ORIG_R2(%r15)
basr %r14,%r8 # call sys_xxx
stg %r2,SP_R2(%r15) # store return value
@@ -443,14 +434,12 @@ kernel_execve:
br %r14
# execve succeeded.
0: stnsm __SF_EMPTY(%r15),0xfc # disable interrupts
-# TRACE_IRQS_OFF
lg %r15,__LC_KERNEL_STACK # load ksp
aghi %r15,-SP_SIZE # make room for registers & psw
lg %r13,__LC_SVC_NEW_PSW+8
mvc SP_PTREGS(__PT_SIZE,%r15),0(%r12) # copy pt_regs
lg %r12,__LC_THREAD_INFO
xc __SF_BACKCHAIN(8,%r15),__SF_BACKCHAIN(%r15)
-# TRACE_IRQS_ON
stosm __SF_EMPTY(%r15),0x03 # reenable interrupts
brasl %r14,execve_tail
j sysc_return
@@ -490,19 +479,18 @@ pgm_check_handler:
LAST_BREAK
pgm_no_vtime:
HANDLE_SIE_INTERCEPT
- TRACE_IRQS_CHECK_OFF
stg %r11,SP_ARGS(%r15)
lgf %r3,__LC_PGM_ILC # load program interruption code
+ lg %r4,__LC_TRANS_EXC_CODE
+ REENABLE_IRQS
lghi %r8,0x7f
ngr %r8,%r3
-pgm_do_call:
sll %r8,3
larl %r1,pgm_check_table
lg %r1,0(%r8,%r1) # load address of handler routine
la %r2,SP_PTREGS(%r15) # address of register-save area
basr %r14,%r1 # branch to interrupt-handler
pgm_exit:
- TRACE_IRQS_CHECK_ON
j sysc_return
#
@@ -533,7 +521,6 @@ pgm_per_std:
LAST_BREAK
pgm_no_vtime2:
HANDLE_SIE_INTERCEPT
- TRACE_IRQS_CHECK_OFF
lg %r1,__TI_task(%r12)
tm SP_PSW+1(%r15),0x01 # kernel per event ?
jz kernel_per
@@ -542,6 +529,8 @@ pgm_no_vtime2:
mvc __THREAD_per+__PER_access_id(1,%r1),__LC_PER_ACCESS_ID
oi __TI_flags+7(%r12),_TIF_SINGLE_STEP # set TIF_SINGLE_STEP
lgf %r3,__LC_PGM_ILC # load program interruption code
+ lg %r4,__LC_TRANS_EXC_CODE
+ REENABLE_IRQS
lghi %r8,0x7f
ngr %r8,%r3 # clear per-event-bit and ilc
je pgm_exit2
@@ -551,8 +540,6 @@ pgm_no_vtime2:
la %r2,SP_PTREGS(%r15) # address of register-save area
basr %r14,%r1 # branch to interrupt-handler
pgm_exit2:
- TRACE_IRQS_ON
- stosm __SF_EMPTY(%r15),0x03 # reenable interrupts
j sysc_return
#
@@ -568,13 +555,11 @@ pgm_svcper:
UPDATE_VTIME __LC_LAST_UPDATE_TIMER,__LC_EXIT_TIMER,__LC_SYSTEM_TIMER
mvc __LC_LAST_UPDATE_TIMER(8),__LC_SYNC_ENTER_TIMER
LAST_BREAK
- TRACE_IRQS_OFF
lg %r8,__TI_task(%r12)
mvc __THREAD_per+__PER_atmid(2,%r8),__LC_PER_ATMID
mvc __THREAD_per+__PER_address(8,%r8),__LC_PER_ADDRESS
mvc __THREAD_per+__PER_access_id(1,%r8),__LC_PER_ACCESS_ID
oi __TI_flags+7(%r12),_TIF_SINGLE_STEP # set TIF_SINGLE_STEP
- TRACE_IRQS_ON
stosm __SF_EMPTY(%r15),0x03 # reenable interrupts
lmg %r2,%r6,SP_R2(%r15) # load svc arguments
j sysc_do_svc
@@ -583,6 +568,7 @@ pgm_svcper:
# per was called from kernel, must be kprobes
#
kernel_per:
+ REENABLE_IRQS
xc SP_SVCNR(2,%r15),SP_SVCNR(%r15) # clear svc number
la %r2,SP_PTREGS(%r15) # address of register-save area
brasl %r14,do_single_step
@@ -743,8 +729,11 @@ ext_int_handler:
ext_no_vtime:
HANDLE_SIE_INTERCEPT
TRACE_IRQS_OFF
+ lghi %r1,4096
la %r2,SP_PTREGS(%r15) # address of register-save area
- llgh %r3,__LC_EXT_INT_CODE # get interruption code
+ llgf %r3,__LC_CPU_ADDRESS # get cpu address + interruption code
+ llgf %r4,__LC_EXT_PARAMS # get external parameter
+ lg %r5,__LC_EXT_PARAMS2-4096(%r1) # get 64 bit external parameter
brasl %r14,do_extint
j io_return
@@ -966,7 +955,6 @@ cleanup_system_call:
CREATE_STACK_FRAME __LC_SAVE_AREA
mvc SP_PSW(16,%r15),__LC_SVC_OLD_PSW
mvc SP_ILC(4,%r15),__LC_SVC_ILC
- stg %r7,SP_ARGS(%r15)
mvc 8(8,%r12),__LC_THREAD_INFO
cleanup_vtime:
clc __LC_RETURN_PSW+8(8),BASED(cleanup_system_call_insn+24)
diff --git a/arch/s390/kernel/head.S b/arch/s390/kernel/head.S
index db1696e210af..7061398341d5 100644
--- a/arch/s390/kernel/head.S
+++ b/arch/s390/kernel/head.S
@@ -488,7 +488,9 @@ startup:
.align 16
2: .long 0x000a0000,0x8badcccc
#if defined(CONFIG_64BIT)
-#if defined(CONFIG_MARCH_Z10)
+#if defined(CONFIG_MARCH_Z196)
+ .long 0xc100efe3, 0xf46c0000
+#elif defined(CONFIG_MARCH_Z10)
.long 0xc100efe3, 0xf0680000
#elif defined(CONFIG_MARCH_Z9_109)
.long 0xc100efc3, 0x00000000
@@ -498,7 +500,9 @@ startup:
.long 0xc0000000, 0x00000000
#endif
#else
-#if defined(CONFIG_MARCH_Z10)
+#if defined(CONFIG_MARCH_Z196)
+ .long 0x8100c880, 0x00000000
+#elif defined(CONFIG_MARCH_Z10)
.long 0x8100c880, 0x00000000
#elif defined(CONFIG_MARCH_Z9_109)
.long 0x8100c880, 0x00000000
diff --git a/arch/s390/kernel/kprobes.c b/arch/s390/kernel/kprobes.c
index 2a3d2bf6f083..d60fc4398516 100644
--- a/arch/s390/kernel/kprobes.c
+++ b/arch/s390/kernel/kprobes.c
@@ -316,6 +316,8 @@ static int __kprobes kprobe_handler(struct pt_regs *regs)
return 1;
ss_probe:
+ if (regs->psw.mask & (PSW_MASK_PER | PSW_MASK_IO))
+ local_irq_disable();
prepare_singlestep(p, regs);
kcb->kprobe_status = KPROBE_HIT_SS;
return 1;
@@ -463,6 +465,8 @@ static int __kprobes post_kprobe_handler(struct pt_regs *regs)
goto out;
}
reset_current_kprobe();
+ if (regs->psw.mask & (PSW_MASK_PER | PSW_MASK_IO))
+ local_irq_enable();
out:
preempt_enable_no_resched();
@@ -502,8 +506,11 @@ int __kprobes kprobe_fault_handler(struct pt_regs *regs, int trapnr)
regs->psw.mask |= kcb->kprobe_saved_imask;
if (kcb->kprobe_status == KPROBE_REENTER)
restore_previous_kprobe(kcb);
- else
+ else {
reset_current_kprobe();
+ if (regs->psw.mask & (PSW_MASK_PER | PSW_MASK_IO))
+ local_irq_enable();
+ }
preempt_enable_no_resched();
break;
case KPROBE_HIT_ACTIVE:
diff --git a/arch/s390/kernel/process.c b/arch/s390/kernel/process.c
index d3a2d1c6438e..ec2e03b22ead 100644
--- a/arch/s390/kernel/process.c
+++ b/arch/s390/kernel/process.c
@@ -76,17 +76,17 @@ unsigned long thread_saved_pc(struct task_struct *tsk)
static void default_idle(void)
{
/* CPU is going idle. */
- local_irq_disable();
- if (need_resched()) {
- local_irq_enable();
- return;
- }
#ifdef CONFIG_HOTPLUG_CPU
if (cpu_is_offline(smp_processor_id())) {
preempt_enable_no_resched();
cpu_die();
}
#endif
+ local_irq_disable();
+ if (need_resched()) {
+ local_irq_enable();
+ return;
+ }
local_mcck_disable();
if (test_thread_flag(TIF_MCCK_PENDING)) {
local_mcck_enable();
diff --git a/arch/s390/kernel/processor.c b/arch/s390/kernel/processor.c
index ecb2d02b02e4..644548e615c6 100644
--- a/arch/s390/kernel/processor.c
+++ b/arch/s390/kernel/processor.c
@@ -42,7 +42,7 @@ void __cpuinit print_cpu_info(void)
struct cpuid *id = &per_cpu(cpu_id, smp_processor_id());
pr_info("Processor %d started, address %d, identification %06X\n",
- S390_lowcore.cpu_nr, S390_lowcore.cpu_addr, id->ident);
+ S390_lowcore.cpu_nr, stap(), id->ident);
}
/*
diff --git a/arch/s390/kernel/ptrace.c b/arch/s390/kernel/ptrace.c
index 83339d33c4b1..019bb714db49 100644
--- a/arch/s390/kernel/ptrace.c
+++ b/arch/s390/kernel/ptrace.c
@@ -343,7 +343,8 @@ poke_user(struct task_struct *child, addr_t addr, addr_t data)
return __poke_user(child, addr, data);
}
-long arch_ptrace(struct task_struct *child, long request, long addr, long data)
+long arch_ptrace(struct task_struct *child, long request,
+ unsigned long addr, unsigned long data)
{
ptrace_area parea;
int copied, ret;
diff --git a/arch/s390/kernel/s390_ext.c b/arch/s390/kernel/s390_ext.c
index 9ce641b5291f..bd1db508e8af 100644
--- a/arch/s390/kernel/s390_ext.c
+++ b/arch/s390/kernel/s390_ext.c
@@ -113,12 +113,15 @@ int unregister_early_external_interrupt(__u16 code, ext_int_handler_t handler,
return 0;
}
-void __irq_entry do_extint(struct pt_regs *regs, unsigned short code)
+void __irq_entry do_extint(struct pt_regs *regs, unsigned int ext_int_code,
+ unsigned int param32, unsigned long param64)
{
+ struct pt_regs *old_regs;
+ unsigned short code;
ext_int_info_t *p;
int index;
- struct pt_regs *old_regs;
+ code = (unsigned short) ext_int_code;
old_regs = set_irq_regs(regs);
s390_idle_check(regs, S390_lowcore.int_clock,
S390_lowcore.async_enter_timer);
@@ -132,7 +135,7 @@ void __irq_entry do_extint(struct pt_regs *regs, unsigned short code)
index = ext_hash(code);
for (p = ext_int_hash[index]; p; p = p->next) {
if (likely(p->code == code))
- p->handler(code);
+ p->handler(ext_int_code, param32, param64);
}
irq_exit();
set_irq_regs(old_regs);
diff --git a/arch/s390/kernel/setup.c b/arch/s390/kernel/setup.c
index c8e8e1354e1d..6f6350826c81 100644
--- a/arch/s390/kernel/setup.c
+++ b/arch/s390/kernel/setup.c
@@ -409,6 +409,9 @@ setup_lowcore(void)
lc->current_task = (unsigned long) init_thread_union.thread_info.task;
lc->thread_info = (unsigned long) &init_thread_union;
lc->machine_flags = S390_lowcore.machine_flags;
+ lc->stfl_fac_list = S390_lowcore.stfl_fac_list;
+ memcpy(lc->stfle_fac_list, S390_lowcore.stfle_fac_list,
+ MAX_FACILITY_BIT/8);
#ifndef CONFIG_64BIT
if (MACHINE_HAS_IEEE) {
lc->extended_save_area_addr = (__u32)
@@ -627,7 +630,8 @@ setup_memory(void)
add_active_range(0, start_chunk, end_chunk);
pfn = max(start_chunk, start_pfn);
for (; pfn < end_chunk; pfn++)
- page_set_storage_key(PFN_PHYS(pfn), PAGE_DEFAULT_KEY);
+ page_set_storage_key(PFN_PHYS(pfn),
+ PAGE_DEFAULT_KEY, 0);
}
psw_set_key(PAGE_DEFAULT_KEY);
@@ -674,12 +678,9 @@ setup_memory(void)
static void __init setup_hwcaps(void)
{
static const int stfl_bits[6] = { 0, 2, 7, 17, 19, 21 };
- unsigned long long facility_list_extended;
- unsigned int facility_list;
struct cpuid cpu_id;
int i;
- facility_list = stfl();
/*
* The store facility list bits numbers as found in the principles
* of operation are numbered with bit 1UL<<31 as number 0 to
@@ -699,11 +700,10 @@ static void __init setup_hwcaps(void)
* HWCAP_S390_ETF3EH bit 8 (22 && 30).
*/
for (i = 0; i < 6; i++)
- if (facility_list & (1UL << (31 - stfl_bits[i])))
+ if (test_facility(stfl_bits[i]))
elf_hwcap |= 1UL << i;
- if ((facility_list & (1UL << (31 - 22)))
- && (facility_list & (1UL << (31 - 30))))
+ if (test_facility(22) && test_facility(30))
elf_hwcap |= HWCAP_S390_ETF3EH;
/*
@@ -719,12 +719,8 @@ static void __init setup_hwcaps(void)
* translated to:
* HWCAP_S390_DFP bit 6 (42 && 44).
*/
- if ((elf_hwcap & (1UL << 2)) &&
- __stfle(&facility_list_extended, 1) > 0) {
- if ((facility_list_extended & (1ULL << (63 - 42)))
- && (facility_list_extended & (1ULL << (63 - 44))))
- elf_hwcap |= HWCAP_S390_DFP;
- }
+ if ((elf_hwcap & (1UL << 2)) && test_facility(42) && test_facility(44))
+ elf_hwcap |= HWCAP_S390_DFP;
/*
* Huge page support HWCAP_S390_HPAGE is bit 7.
@@ -765,6 +761,9 @@ static void __init setup_hwcaps(void)
case 0x2098:
strcpy(elf_platform, "z10");
break;
+ case 0x2817:
+ strcpy(elf_platform, "z196");
+ break;
}
}
diff --git a/arch/s390/kernel/smp.c b/arch/s390/kernel/smp.c
index 8127ebd59c4d..94cf510b8fe1 100644
--- a/arch/s390/kernel/smp.c
+++ b/arch/s390/kernel/smp.c
@@ -156,7 +156,8 @@ void smp_send_stop(void)
* cpus are handled.
*/
-static void do_ext_call_interrupt(__u16 code)
+static void do_ext_call_interrupt(unsigned int ext_int_code,
+ unsigned int param32, unsigned long param64)
{
unsigned long bits;
@@ -593,6 +594,8 @@ int __cpuinit __cpu_up(unsigned int cpu)
cpu_lowcore->kernel_asce = S390_lowcore.kernel_asce;
cpu_lowcore->machine_flags = S390_lowcore.machine_flags;
cpu_lowcore->ftrace_func = S390_lowcore.ftrace_func;
+ memcpy(cpu_lowcore->stfle_fac_list, S390_lowcore.stfle_fac_list,
+ MAX_FACILITY_BIT/8);
eieio();
while (sigp(cpu, sigp_restart) == sigp_busy)
diff --git a/arch/s390/kernel/sysinfo.c b/arch/s390/kernel/sysinfo.c
index a0ffc7717ed6..5c9e439bf3f6 100644
--- a/arch/s390/kernel/sysinfo.c
+++ b/arch/s390/kernel/sysinfo.c
@@ -15,6 +15,7 @@
#include <asm/ebcdic.h>
#include <asm/sysinfo.h>
#include <asm/cpcmd.h>
+#include <asm/topology.h>
/* Sigh, math-emu. Don't ask. */
#include <asm/sfp-util.h>
@@ -74,6 +75,44 @@ static int stsi_1_1_1(struct sysinfo_1_1_1 *info, char *page, int len)
"Model Temp. Capacity: %-16.16s %08u\n",
info->model_temp_cap,
*(u32 *) info->model_temp_cap_rating);
+ if (info->cai) {
+ len += sprintf(page + len,
+ "Capacity Adj. Ind.: %d\n",
+ info->cai);
+ len += sprintf(page + len, "Capacity Ch. Reason: %d\n",
+ info->ccr);
+ }
+ return len;
+}
+
+static int stsi_15_1_x(struct sysinfo_15_1_x *info, char *page, int len)
+{
+ static int max_mnest;
+ int i, rc;
+
+ len += sprintf(page + len, "\n");
+ if (!MACHINE_HAS_TOPOLOGY)
+ return len;
+ if (max_mnest) {
+ stsi(info, 15, 1, max_mnest);
+ } else {
+ for (max_mnest = 6; max_mnest > 1; max_mnest--) {
+ rc = stsi(info, 15, 1, max_mnest);
+ if (rc != -ENOSYS)
+ break;
+ }
+ }
+ len += sprintf(page + len, "CPU Topology HW: ");
+ for (i = 0; i < TOPOLOGY_NR_MAG; i++)
+ len += sprintf(page + len, " %d", info->mag[i]);
+ len += sprintf(page + len, "\n");
+#ifdef CONFIG_SCHED_MC
+ store_topology(info);
+ len += sprintf(page + len, "CPU Topology SW: ");
+ for (i = 0; i < TOPOLOGY_NR_MAG; i++)
+ len += sprintf(page + len, " %d", info->mag[i]);
+ len += sprintf(page + len, "\n");
+#endif
return len;
}
@@ -87,7 +126,6 @@ static int stsi_1_2_2(struct sysinfo_1_2_2 *info, char *page, int len)
ext = (struct sysinfo_1_2_2_extension *)
((unsigned long) info + info->acc_offset);
- len += sprintf(page + len, "\n");
len += sprintf(page + len, "CPUs Total: %d\n",
info->cpus_total);
len += sprintf(page + len, "CPUs Configured: %d\n",
@@ -217,6 +255,9 @@ static int proc_read_sysinfo(char *page, char **start,
len = stsi_1_1_1((struct sysinfo_1_1_1 *) info, page, len);
if (level >= 1)
+ len = stsi_15_1_x((struct sysinfo_15_1_x *) info, page, len);
+
+ if (level >= 1)
len = stsi_1_2_2((struct sysinfo_1_2_2 *) info, page, len);
if (level >= 2)
diff --git a/arch/s390/kernel/time.c b/arch/s390/kernel/time.c
index 2896cac9c14a..f754a6dc4f94 100644
--- a/arch/s390/kernel/time.c
+++ b/arch/s390/kernel/time.c
@@ -155,7 +155,9 @@ void init_cpu_timer(void)
__ctl_set_bit(0, 4);
}
-static void clock_comparator_interrupt(__u16 code)
+static void clock_comparator_interrupt(unsigned int ext_int_code,
+ unsigned int param32,
+ unsigned long param64)
{
if (S390_lowcore.clock_comparator == -1ULL)
set_clock_comparator(S390_lowcore.clock_comparator);
@@ -164,14 +166,13 @@ static void clock_comparator_interrupt(__u16 code)
static void etr_timing_alert(struct etr_irq_parm *);
static void stp_timing_alert(struct stp_irq_parm *);
-static void timing_alert_interrupt(__u16 code)
+static void timing_alert_interrupt(unsigned int ext_int_code,
+ unsigned int param32, unsigned long param64)
{
- if (S390_lowcore.ext_params & 0x00c40000)
- etr_timing_alert((struct etr_irq_parm *)
- &S390_lowcore.ext_params);
- if (S390_lowcore.ext_params & 0x00038000)
- stp_timing_alert((struct stp_irq_parm *)
- &S390_lowcore.ext_params);
+ if (param32 & 0x00c40000)
+ etr_timing_alert((struct etr_irq_parm *) &param32);
+ if (param32 & 0x00038000)
+ stp_timing_alert((struct stp_irq_parm *) &param32);
}
static void etr_reset(void);
diff --git a/arch/s390/kernel/topology.c b/arch/s390/kernel/topology.c
index 13559c993847..94b06c31fc8a 100644
--- a/arch/s390/kernel/topology.c
+++ b/arch/s390/kernel/topology.c
@@ -18,55 +18,20 @@
#include <linux/cpuset.h>
#include <asm/delay.h>
#include <asm/s390_ext.h>
-#include <asm/sysinfo.h>
-
-#define CPU_BITS 64
-#define NR_MAG 6
#define PTF_HORIZONTAL (0UL)
#define PTF_VERTICAL (1UL)
#define PTF_CHECK (2UL)
-struct tl_cpu {
- unsigned char reserved0[4];
- unsigned char :6;
- unsigned char pp:2;
- unsigned char reserved1;
- unsigned short origin;
- unsigned long mask[CPU_BITS / BITS_PER_LONG];
-};
-
-struct tl_container {
- unsigned char reserved[7];
- unsigned char id;
-};
-
-union tl_entry {
- unsigned char nl;
- struct tl_cpu cpu;
- struct tl_container container;
-};
-
-struct tl_info {
- unsigned char reserved0[2];
- unsigned short length;
- unsigned char mag[NR_MAG];
- unsigned char reserved1;
- unsigned char mnest;
- unsigned char reserved2[4];
- union tl_entry tle[0];
-};
-
struct mask_info {
struct mask_info *next;
unsigned char id;
cpumask_t mask;
};
-static int topology_enabled;
+static int topology_enabled = 1;
static void topology_work_fn(struct work_struct *work);
-static struct tl_info *tl_info;
-static int machine_has_topology;
+static struct sysinfo_15_1_x *tl_info;
static struct timer_list topology_timer;
static void set_topology_timer(void);
static DECLARE_WORK(topology_work, topology_work_fn);
@@ -88,8 +53,10 @@ static cpumask_t cpu_group_map(struct mask_info *info, unsigned int cpu)
cpumask_t mask;
cpus_clear(mask);
- if (!topology_enabled || !machine_has_topology)
- return cpu_possible_map;
+ if (!topology_enabled || !MACHINE_HAS_TOPOLOGY) {
+ cpumask_copy(&mask, cpumask_of(cpu));
+ return mask;
+ }
while (info) {
if (cpu_isset(cpu, info->mask)) {
mask = info->mask;
@@ -102,18 +69,18 @@ static cpumask_t cpu_group_map(struct mask_info *info, unsigned int cpu)
return mask;
}
-static void add_cpus_to_mask(struct tl_cpu *tl_cpu, struct mask_info *book,
- struct mask_info *core)
+static void add_cpus_to_mask(struct topology_cpu *tl_cpu,
+ struct mask_info *book, struct mask_info *core)
{
unsigned int cpu;
- for (cpu = find_first_bit(&tl_cpu->mask[0], CPU_BITS);
- cpu < CPU_BITS;
- cpu = find_next_bit(&tl_cpu->mask[0], CPU_BITS, cpu + 1))
+ for (cpu = find_first_bit(&tl_cpu->mask[0], TOPOLOGY_CPU_BITS);
+ cpu < TOPOLOGY_CPU_BITS;
+ cpu = find_next_bit(&tl_cpu->mask[0], TOPOLOGY_CPU_BITS, cpu + 1))
{
unsigned int rcpu, lcpu;
- rcpu = CPU_BITS - 1 - cpu + tl_cpu->origin;
+ rcpu = TOPOLOGY_CPU_BITS - 1 - cpu + tl_cpu->origin;
for_each_present_cpu(lcpu) {
if (cpu_logical_map(lcpu) != rcpu)
continue;
@@ -146,15 +113,14 @@ static void clear_masks(void)
#endif
}
-static union tl_entry *next_tle(union tl_entry *tle)
+static union topology_entry *next_tle(union topology_entry *tle)
{
- if (tle->nl)
- return (union tl_entry *)((struct tl_container *)tle + 1);
- else
- return (union tl_entry *)((struct tl_cpu *)tle + 1);
+ if (!tle->nl)
+ return (union topology_entry *)((struct topology_cpu *)tle + 1);
+ return (union topology_entry *)((struct topology_container *)tle + 1);
}
-static void tl_to_cores(struct tl_info *info)
+static void tl_to_cores(struct sysinfo_15_1_x *info)
{
#ifdef CONFIG_SCHED_BOOK
struct mask_info *book = &book_info;
@@ -162,13 +128,13 @@ static void tl_to_cores(struct tl_info *info)
struct mask_info *book = NULL;
#endif
struct mask_info *core = &core_info;
- union tl_entry *tle, *end;
+ union topology_entry *tle, *end;
spin_lock_irq(&topology_lock);
clear_masks();
tle = info->tle;
- end = (union tl_entry *)((unsigned long)info + info->length);
+ end = (union topology_entry *)((unsigned long)info + info->length);
while (tle < end) {
switch (tle->nl) {
#ifdef CONFIG_SCHED_BOOK
@@ -186,7 +152,6 @@ static void tl_to_cores(struct tl_info *info)
break;
default:
clear_masks();
- machine_has_topology = 0;
goto out;
}
tle = next_tle(tle);
@@ -223,7 +188,7 @@ int topology_set_cpu_management(int fc)
int cpu;
int rc;
- if (!machine_has_topology)
+ if (!MACHINE_HAS_TOPOLOGY)
return -EOPNOTSUPP;
if (fc)
rc = ptf(PTF_VERTICAL);
@@ -251,7 +216,7 @@ static void update_cpu_core_map(void)
spin_unlock_irqrestore(&topology_lock, flags);
}
-static void store_topology(struct tl_info *info)
+void store_topology(struct sysinfo_15_1_x *info)
{
#ifdef CONFIG_SCHED_BOOK
int rc;
@@ -265,11 +230,11 @@ static void store_topology(struct tl_info *info)
int arch_update_cpu_topology(void)
{
- struct tl_info *info = tl_info;
+ struct sysinfo_15_1_x *info = tl_info;
struct sys_device *sysdev;
int cpu;
- if (!machine_has_topology) {
+ if (!MACHINE_HAS_TOPOLOGY) {
update_cpu_core_map();
topology_update_polarization_simple();
return 0;
@@ -311,9 +276,9 @@ static void set_topology_timer(void)
static int __init early_parse_topology(char *p)
{
- if (strncmp(p, "on", 2))
+ if (strncmp(p, "off", 3))
return 0;
- topology_enabled = 1;
+ topology_enabled = 0;
return 0;
}
early_param("topology", early_parse_topology);
@@ -323,7 +288,7 @@ static int __init init_topology_update(void)
int rc;
rc = 0;
- if (!machine_has_topology) {
+ if (!MACHINE_HAS_TOPOLOGY) {
topology_update_polarization_simple();
goto out;
}
@@ -335,13 +300,14 @@ out:
}
__initcall(init_topology_update);
-static void alloc_masks(struct tl_info *info, struct mask_info *mask, int offset)
+static void alloc_masks(struct sysinfo_15_1_x *info, struct mask_info *mask,
+ int offset)
{
int i, nr_masks;
- nr_masks = info->mag[NR_MAG - offset];
+ nr_masks = info->mag[TOPOLOGY_NR_MAG - offset];
for (i = 0; i < info->mnest - offset; i++)
- nr_masks *= info->mag[NR_MAG - offset - 1 - i];
+ nr_masks *= info->mag[TOPOLOGY_NR_MAG - offset - 1 - i];
nr_masks = max(nr_masks, 1);
for (i = 0; i < nr_masks; i++) {
mask->next = alloc_bootmem(sizeof(struct mask_info));
@@ -351,21 +317,16 @@ static void alloc_masks(struct tl_info *info, struct mask_info *mask, int offset
void __init s390_init_cpu_topology(void)
{
- unsigned long long facility_bits;
- struct tl_info *info;
+ struct sysinfo_15_1_x *info;
int i;
- if (stfle(&facility_bits, 1) <= 0)
- return;
- if (!(facility_bits & (1ULL << 52)) || !(facility_bits & (1ULL << 61)))
+ if (!MACHINE_HAS_TOPOLOGY)
return;
- machine_has_topology = 1;
-
tl_info = alloc_bootmem_pages(PAGE_SIZE);
info = tl_info;
store_topology(info);
pr_info("The CPU configuration topology of the machine is:");
- for (i = 0; i < NR_MAG; i++)
+ for (i = 0; i < TOPOLOGY_NR_MAG; i++)
printk(" %d", info->mag[i]);
printk(" / %d\n", info->mnest);
alloc_masks(info, &core_info, 2);
diff --git a/arch/s390/kernel/traps.c b/arch/s390/kernel/traps.c
index 5d8f0f3d0250..70640822621a 100644
--- a/arch/s390/kernel/traps.c
+++ b/arch/s390/kernel/traps.c
@@ -329,27 +329,19 @@ int is_valid_bugaddr(unsigned long addr)
return 1;
}
-static void __kprobes inline do_trap(long interruption_code, int signr,
- char *str, struct pt_regs *regs,
- siginfo_t *info)
+static inline void __kprobes do_trap(long pgm_int_code, int signr, char *str,
+ struct pt_regs *regs, siginfo_t *info)
{
- /*
- * We got all needed information from the lowcore and can
- * now safely switch on interrupts.
- */
- if (regs->psw.mask & PSW_MASK_PSTATE)
- local_irq_enable();
-
- if (notify_die(DIE_TRAP, str, regs, interruption_code,
- interruption_code, signr) == NOTIFY_STOP)
+ if (notify_die(DIE_TRAP, str, regs, pgm_int_code,
+ pgm_int_code, signr) == NOTIFY_STOP)
return;
if (regs->psw.mask & PSW_MASK_PSTATE) {
struct task_struct *tsk = current;
- tsk->thread.trap_no = interruption_code & 0xffff;
+ tsk->thread.trap_no = pgm_int_code & 0xffff;
force_sig_info(signr, info, tsk);
- report_user_fault(regs, interruption_code, signr);
+ report_user_fault(regs, pgm_int_code, signr);
} else {
const struct exception_table_entry *fixup;
fixup = search_exception_tables(regs->psw.addr & PSW_ADDR_INSN);
@@ -361,14 +353,16 @@ static void __kprobes inline do_trap(long interruption_code, int signr,
btt = report_bug(regs->psw.addr & PSW_ADDR_INSN, regs);
if (btt == BUG_TRAP_TYPE_WARN)
return;
- die(str, regs, interruption_code);
+ die(str, regs, pgm_int_code);
}
}
}
-static inline void __user *get_check_address(struct pt_regs *regs)
+static inline void __user *get_psw_address(struct pt_regs *regs,
+ long pgm_int_code)
{
- return (void __user *)((regs->psw.addr-S390_lowcore.pgm_ilc) & PSW_ADDR_INSN);
+ return (void __user *)
+ ((regs->psw.addr - (pgm_int_code >> 16)) & PSW_ADDR_INSN);
}
void __kprobes do_single_step(struct pt_regs *regs)
@@ -381,57 +375,57 @@ void __kprobes do_single_step(struct pt_regs *regs)
force_sig(SIGTRAP, current);
}
-static void default_trap_handler(struct pt_regs * regs, long interruption_code)
+static void default_trap_handler(struct pt_regs *regs, long pgm_int_code,
+ unsigned long trans_exc_code)
{
if (regs->psw.mask & PSW_MASK_PSTATE) {
- local_irq_enable();
- report_user_fault(regs, interruption_code, SIGSEGV);
+ report_user_fault(regs, pgm_int_code, SIGSEGV);
do_exit(SIGSEGV);
} else
- die("Unknown program exception", regs, interruption_code);
+ die("Unknown program exception", regs, pgm_int_code);
}
-#define DO_ERROR_INFO(signr, str, name, sicode, siaddr) \
-static void name(struct pt_regs * regs, long interruption_code) \
+#define DO_ERROR_INFO(name, signr, sicode, str) \
+static void name(struct pt_regs *regs, long pgm_int_code, \
+ unsigned long trans_exc_code) \
{ \
siginfo_t info; \
info.si_signo = signr; \
info.si_errno = 0; \
info.si_code = sicode; \
- info.si_addr = siaddr; \
- do_trap(interruption_code, signr, str, regs, &info); \
+ info.si_addr = get_psw_address(regs, pgm_int_code); \
+ do_trap(pgm_int_code, signr, str, regs, &info); \
}
-DO_ERROR_INFO(SIGILL, "addressing exception", addressing_exception,
- ILL_ILLADR, get_check_address(regs))
-DO_ERROR_INFO(SIGILL, "execute exception", execute_exception,
- ILL_ILLOPN, get_check_address(regs))
-DO_ERROR_INFO(SIGFPE, "fixpoint divide exception", divide_exception,
- FPE_INTDIV, get_check_address(regs))
-DO_ERROR_INFO(SIGFPE, "fixpoint overflow exception", overflow_exception,
- FPE_INTOVF, get_check_address(regs))
-DO_ERROR_INFO(SIGFPE, "HFP overflow exception", hfp_overflow_exception,
- FPE_FLTOVF, get_check_address(regs))
-DO_ERROR_INFO(SIGFPE, "HFP underflow exception", hfp_underflow_exception,
- FPE_FLTUND, get_check_address(regs))
-DO_ERROR_INFO(SIGFPE, "HFP significance exception", hfp_significance_exception,
- FPE_FLTRES, get_check_address(regs))
-DO_ERROR_INFO(SIGFPE, "HFP divide exception", hfp_divide_exception,
- FPE_FLTDIV, get_check_address(regs))
-DO_ERROR_INFO(SIGFPE, "HFP square root exception", hfp_sqrt_exception,
- FPE_FLTINV, get_check_address(regs))
-DO_ERROR_INFO(SIGILL, "operand exception", operand_exception,
- ILL_ILLOPN, get_check_address(regs))
-DO_ERROR_INFO(SIGILL, "privileged operation", privileged_op,
- ILL_PRVOPC, get_check_address(regs))
-DO_ERROR_INFO(SIGILL, "special operation exception", special_op_exception,
- ILL_ILLOPN, get_check_address(regs))
-DO_ERROR_INFO(SIGILL, "translation exception", translation_exception,
- ILL_ILLOPN, get_check_address(regs))
-
-static inline void
-do_fp_trap(struct pt_regs *regs, void __user *location,
- int fpc, long interruption_code)
+DO_ERROR_INFO(addressing_exception, SIGILL, ILL_ILLADR,
+ "addressing exception")
+DO_ERROR_INFO(execute_exception, SIGILL, ILL_ILLOPN,
+ "execute exception")
+DO_ERROR_INFO(divide_exception, SIGFPE, FPE_INTDIV,
+ "fixpoint divide exception")
+DO_ERROR_INFO(overflow_exception, SIGFPE, FPE_INTOVF,
+ "fixpoint overflow exception")
+DO_ERROR_INFO(hfp_overflow_exception, SIGFPE, FPE_FLTOVF,
+ "HFP overflow exception")
+DO_ERROR_INFO(hfp_underflow_exception, SIGFPE, FPE_FLTUND,
+ "HFP underflow exception")
+DO_ERROR_INFO(hfp_significance_exception, SIGFPE, FPE_FLTRES,
+ "HFP significance exception")
+DO_ERROR_INFO(hfp_divide_exception, SIGFPE, FPE_FLTDIV,
+ "HFP divide exception")
+DO_ERROR_INFO(hfp_sqrt_exception, SIGFPE, FPE_FLTINV,
+ "HFP square root exception")
+DO_ERROR_INFO(operand_exception, SIGILL, ILL_ILLOPN,
+ "operand exception")
+DO_ERROR_INFO(privileged_op, SIGILL, ILL_PRVOPC,
+ "privileged operation")
+DO_ERROR_INFO(special_op_exception, SIGILL, ILL_ILLOPN,
+ "special operation exception")
+DO_ERROR_INFO(translation_exception, SIGILL, ILL_ILLOPN,
+ "translation exception")
+
+static inline void do_fp_trap(struct pt_regs *regs, void __user *location,
+ int fpc, long pgm_int_code)
{
siginfo_t si;
@@ -453,26 +447,19 @@ do_fp_trap(struct pt_regs *regs, void __user *location,
else if (fpc & 0x0800) /* inexact */
si.si_code = FPE_FLTRES;
}
- current->thread.ieee_instruction_pointer = (addr_t) location;
- do_trap(interruption_code, SIGFPE,
+ do_trap(pgm_int_code, SIGFPE,
"floating point exception", regs, &si);
}
-static void illegal_op(struct pt_regs * regs, long interruption_code)
+static void illegal_op(struct pt_regs *regs, long pgm_int_code,
+ unsigned long trans_exc_code)
{
siginfo_t info;
__u8 opcode[6];
__u16 __user *location;
int signal = 0;
- location = get_check_address(regs);
-
- /*
- * We got all needed information from the lowcore and can
- * now safely switch on interrupts.
- */
- if (regs->psw.mask & PSW_MASK_PSTATE)
- local_irq_enable();
+ location = get_psw_address(regs, pgm_int_code);
if (regs->psw.mask & PSW_MASK_PSTATE) {
if (get_user(*((__u16 *) opcode), (__u16 __user *) location))
@@ -512,7 +499,7 @@ static void illegal_op(struct pt_regs * regs, long interruption_code)
* If we get an illegal op in kernel mode, send it through the
* kprobes notifier. If kprobes doesn't pick it up, SIGILL
*/
- if (notify_die(DIE_BPT, "bpt", regs, interruption_code,
+ if (notify_die(DIE_BPT, "bpt", regs, pgm_int_code,
3, SIGTRAP) != NOTIFY_STOP)
signal = SIGILL;
}
@@ -520,13 +507,13 @@ static void illegal_op(struct pt_regs * regs, long interruption_code)
#ifdef CONFIG_MATHEMU
if (signal == SIGFPE)
do_fp_trap(regs, location,
- current->thread.fp_regs.fpc, interruption_code);
+ current->thread.fp_regs.fpc, pgm_int_code);
else if (signal == SIGSEGV) {
info.si_signo = signal;
info.si_errno = 0;
info.si_code = SEGV_MAPERR;
info.si_addr = (void __user *) location;
- do_trap(interruption_code, signal,
+ do_trap(pgm_int_code, signal,
"user address fault", regs, &info);
} else
#endif
@@ -535,28 +522,22 @@ static void illegal_op(struct pt_regs * regs, long interruption_code)
info.si_errno = 0;
info.si_code = ILL_ILLOPC;
info.si_addr = (void __user *) location;
- do_trap(interruption_code, signal,
+ do_trap(pgm_int_code, signal,
"illegal operation", regs, &info);
}
}
#ifdef CONFIG_MATHEMU
-asmlinkage void
-specification_exception(struct pt_regs * regs, long interruption_code)
+asmlinkage void specification_exception(struct pt_regs *regs,
+ long pgm_int_code,
+ unsigned long trans_exc_code)
{
__u8 opcode[6];
__u16 __user *location = NULL;
int signal = 0;
- location = (__u16 __user *) get_check_address(regs);
-
- /*
- * We got all needed information from the lowcore and can
- * now safely switch on interrupts.
- */
- if (regs->psw.mask & PSW_MASK_PSTATE)
- local_irq_enable();
+ location = (__u16 __user *) get_psw_address(regs, pgm_int_code);
if (regs->psw.mask & PSW_MASK_PSTATE) {
get_user(*((__u16 *) opcode), location);
@@ -592,35 +573,29 @@ specification_exception(struct pt_regs * regs, long interruption_code)
if (signal == SIGFPE)
do_fp_trap(regs, location,
- current->thread.fp_regs.fpc, interruption_code);
+ current->thread.fp_regs.fpc, pgm_int_code);
else if (signal) {
siginfo_t info;
info.si_signo = signal;
info.si_errno = 0;
info.si_code = ILL_ILLOPN;
info.si_addr = location;
- do_trap(interruption_code, signal,
+ do_trap(pgm_int_code, signal,
"specification exception", regs, &info);
}
}
#else
-DO_ERROR_INFO(SIGILL, "specification exception", specification_exception,
- ILL_ILLOPN, get_check_address(regs));
+DO_ERROR_INFO(specification_exception, SIGILL, ILL_ILLOPN,
+ "specification exception");
#endif
-static void data_exception(struct pt_regs * regs, long interruption_code)
+static void data_exception(struct pt_regs *regs, long pgm_int_code,
+ unsigned long trans_exc_code)
{
__u16 __user *location;
int signal = 0;
- location = get_check_address(regs);
-
- /*
- * We got all needed information from the lowcore and can
- * now safely switch on interrupts.
- */
- if (regs->psw.mask & PSW_MASK_PSTATE)
- local_irq_enable();
+ location = get_psw_address(regs, pgm_int_code);
if (MACHINE_HAS_IEEE)
asm volatile("stfpc %0" : "=m" (current->thread.fp_regs.fpc));
@@ -686,19 +661,19 @@ static void data_exception(struct pt_regs * regs, long interruption_code)
signal = SIGILL;
if (signal == SIGFPE)
do_fp_trap(regs, location,
- current->thread.fp_regs.fpc, interruption_code);
+ current->thread.fp_regs.fpc, pgm_int_code);
else if (signal) {
siginfo_t info;
info.si_signo = signal;
info.si_errno = 0;
info.si_code = ILL_ILLOPN;
info.si_addr = location;
- do_trap(interruption_code, signal,
- "data exception", regs, &info);
+ do_trap(pgm_int_code, signal, "data exception", regs, &info);
}
}
-static void space_switch_exception(struct pt_regs * regs, long int_code)
+static void space_switch_exception(struct pt_regs *regs, long pgm_int_code,
+ unsigned long trans_exc_code)
{
siginfo_t info;
@@ -709,8 +684,8 @@ static void space_switch_exception(struct pt_regs * regs, long int_code)
info.si_signo = SIGILL;
info.si_errno = 0;
info.si_code = ILL_PRVOPC;
- info.si_addr = get_check_address(regs);
- do_trap(int_code, SIGILL, "space switch event", regs, &info);
+ info.si_addr = get_psw_address(regs, pgm_int_code);
+ do_trap(pgm_int_code, SIGILL, "space switch event", regs, &info);
}
asmlinkage void kernel_stack_overflow(struct pt_regs * regs)
diff --git a/arch/s390/kernel/vdso.c b/arch/s390/kernel/vdso.c
index 6b83870507d5..e3150dd2fe74 100644
--- a/arch/s390/kernel/vdso.c
+++ b/arch/s390/kernel/vdso.c
@@ -84,11 +84,7 @@ struct vdso_data *vdso_data = &vdso_data_store.data;
*/
static void vdso_init_data(struct vdso_data *vd)
{
- unsigned int facility_list;
-
- facility_list = stfl();
- vd->ectg_available =
- user_mode != HOME_SPACE_MODE && (facility_list & 1);
+ vd->ectg_available = user_mode != HOME_SPACE_MODE && test_facility(31);
}
#ifdef CONFIG_64BIT
diff --git a/arch/s390/kernel/vdso32/clock_getres.S b/arch/s390/kernel/vdso32/clock_getres.S
index 9532c4e6a9d2..36aaa25d05da 100644
--- a/arch/s390/kernel/vdso32/clock_getres.S
+++ b/arch/s390/kernel/vdso32/clock_getres.S
@@ -19,9 +19,9 @@
.type __kernel_clock_getres,@function
__kernel_clock_getres:
.cfi_startproc
- chi %r2,CLOCK_REALTIME
+ chi %r2,__CLOCK_REALTIME
je 0f
- chi %r2,CLOCK_MONOTONIC
+ chi %r2,__CLOCK_MONOTONIC
jne 3f
0: ltr %r3,%r3
jz 2f /* res == NULL */
@@ -34,6 +34,6 @@ __kernel_clock_getres:
3: lhi %r1,__NR_clock_getres /* fallback to svc */
svc 0
br %r14
-4: .long CLOCK_REALTIME_RES
+4: .long __CLOCK_REALTIME_RES
.cfi_endproc
.size __kernel_clock_getres,.-__kernel_clock_getres
diff --git a/arch/s390/kernel/vdso32/clock_gettime.S b/arch/s390/kernel/vdso32/clock_gettime.S
index 969643954273..b2224e0b974c 100644
--- a/arch/s390/kernel/vdso32/clock_gettime.S
+++ b/arch/s390/kernel/vdso32/clock_gettime.S
@@ -21,9 +21,9 @@ __kernel_clock_gettime:
.cfi_startproc
basr %r5,0
0: al %r5,21f-0b(%r5) /* get &_vdso_data */
- chi %r2,CLOCK_REALTIME
+ chi %r2,__CLOCK_REALTIME
je 10f
- chi %r2,CLOCK_MONOTONIC
+ chi %r2,__CLOCK_MONOTONIC
jne 19f
/* CLOCK_MONOTONIC */
diff --git a/arch/s390/kernel/vdso64/clock_getres.S b/arch/s390/kernel/vdso64/clock_getres.S
index 9ce8caafdb4e..176e1f75f9aa 100644
--- a/arch/s390/kernel/vdso64/clock_getres.S
+++ b/arch/s390/kernel/vdso64/clock_getres.S
@@ -19,9 +19,9 @@
.type __kernel_clock_getres,@function
__kernel_clock_getres:
.cfi_startproc
- cghi %r2,CLOCK_REALTIME
+ cghi %r2,__CLOCK_REALTIME
je 0f
- cghi %r2,CLOCK_MONOTONIC
+ cghi %r2,__CLOCK_MONOTONIC
je 0f
cghi %r2,-2 /* CLOCK_THREAD_CPUTIME_ID for this thread */
jne 2f
@@ -39,6 +39,6 @@ __kernel_clock_getres:
2: lghi %r1,__NR_clock_getres /* fallback to svc */
svc 0
br %r14
-3: .quad CLOCK_REALTIME_RES
+3: .quad __CLOCK_REALTIME_RES
.cfi_endproc
.size __kernel_clock_getres,.-__kernel_clock_getres
diff --git a/arch/s390/kernel/vdso64/clock_gettime.S b/arch/s390/kernel/vdso64/clock_gettime.S
index f40467884a03..d46c95ed5f19 100644
--- a/arch/s390/kernel/vdso64/clock_gettime.S
+++ b/arch/s390/kernel/vdso64/clock_gettime.S
@@ -20,11 +20,11 @@
__kernel_clock_gettime:
.cfi_startproc
larl %r5,_vdso_data
- cghi %r2,CLOCK_REALTIME
+ cghi %r2,__CLOCK_REALTIME
je 4f
cghi %r2,-2 /* CLOCK_THREAD_CPUTIME_ID for this thread */
je 9f
- cghi %r2,CLOCK_MONOTONIC
+ cghi %r2,__CLOCK_MONOTONIC
jne 12f
/* CLOCK_MONOTONIC */
diff --git a/arch/s390/kernel/vtime.c b/arch/s390/kernel/vtime.c
index 3479f1b0d4e0..56c8687b29b3 100644
--- a/arch/s390/kernel/vtime.c
+++ b/arch/s390/kernel/vtime.c
@@ -314,7 +314,8 @@ static void do_callbacks(struct list_head *cb_list)
/*
* Handler for the virtual CPU timer.
*/
-static void do_cpu_timer_interrupt(__u16 error_code)
+static void do_cpu_timer_interrupt(unsigned int ext_int_code,
+ unsigned int param32, unsigned long param64)
{
struct vtimer_queue *vq;
struct vtimer_list *event, *tmp;
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.