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-rw-r--r--arch/powerpc/Makefile1
-rw-r--r--arch/powerpc/include/asm/emulated_ops.h1
-rw-r--r--arch/powerpc/include/asm/opal.h19
-rw-r--r--arch/powerpc/include/asm/rtas.h127
-rw-r--r--arch/powerpc/kernel/align.c52
-rw-r--r--arch/powerpc/kernel/cpu_setup_power.S2
-rw-r--r--arch/powerpc/kernel/exceptions-64s.S8
-rw-r--r--arch/powerpc/kernel/paca.c3
-rw-r--r--arch/powerpc/kernel/process.c34
-rw-r--r--arch/powerpc/kernel/prom.c58
-rw-r--r--arch/powerpc/kernel/rtas.c15
-rw-r--r--arch/powerpc/kernel/rtasd.c24
-rw-r--r--arch/powerpc/kernel/setup-common.c3
-rw-r--r--arch/powerpc/kernel/setup_32.c2
-rw-r--r--arch/powerpc/kernel/setup_64.c28
-rw-r--r--arch/powerpc/kernel/signal_32.c2
-rw-r--r--arch/powerpc/kernel/signal_64.c2
-rw-r--r--arch/powerpc/kernel/tm.S2
-rw-r--r--arch/powerpc/kernel/traps.c1
-rw-r--r--arch/powerpc/math-emu/mtfsf.c58
-rw-r--r--arch/powerpc/mm/gup.c13
-rw-r--r--arch/powerpc/mm/numa.c15
-rw-r--r--arch/powerpc/platforms/cell/spu_syscalls.c2
-rw-r--r--arch/powerpc/platforms/powernv/Makefile1
-rw-r--r--arch/powerpc/platforms/powernv/opal-async.c7
-rw-r--r--arch/powerpc/platforms/powernv/opal-dump.c9
-rw-r--r--arch/powerpc/platforms/powernv/opal-elog.c9
-rw-r--r--arch/powerpc/platforms/powernv/opal-msglog.c120
-rw-r--r--arch/powerpc/platforms/powernv/opal-sensor.c6
-rw-r--r--arch/powerpc/platforms/powernv/opal-sysparam.c4
-rw-r--r--arch/powerpc/platforms/powernv/opal-wrappers.S1
-rw-r--r--arch/powerpc/platforms/powernv/opal.c59
-rw-r--r--arch/powerpc/platforms/pseries/io_event_irq.c6
-rw-r--r--arch/powerpc/platforms/pseries/nvram.c11
-rw-r--r--arch/powerpc/platforms/pseries/ras.c17
-rw-r--r--arch/powerpc/sysdev/msi_bitmap.c2
-rw-r--r--drivers/hwmon/Kconfig8
-rw-r--r--drivers/hwmon/Makefile1
-rw-r--r--drivers/hwmon/ibmpowernv.c529
-rw-r--r--drivers/tty/hvc/hvc_opal.c22
40 files changed, 546 insertions, 738 deletions
diff --git a/arch/powerpc/Makefile b/arch/powerpc/Makefile
index 0f4344e6fbca..4c0cedf4e2c7 100644
--- a/arch/powerpc/Makefile
+++ b/arch/powerpc/Makefile
@@ -74,6 +74,7 @@ override CROSS32AS += -mlittle-endian
74LDEMULATION := lppc 74LDEMULATION := lppc
75GNUTARGET := powerpcle 75GNUTARGET := powerpcle
76MULTIPLEWORD := -mno-multiple 76MULTIPLEWORD := -mno-multiple
77KBUILD_CFLAGS_MODULE += $(call cc-option,-mno-save-toc-indirect)
77else 78else
78ifeq ($(call cc-option-yn,-mbig-endian),y) 79ifeq ($(call cc-option-yn,-mbig-endian),y)
79override CC += -mbig-endian 80override CC += -mbig-endian
diff --git a/arch/powerpc/include/asm/emulated_ops.h b/arch/powerpc/include/asm/emulated_ops.h
index 4358e3002f35..f00e10e2a335 100644
--- a/arch/powerpc/include/asm/emulated_ops.h
+++ b/arch/powerpc/include/asm/emulated_ops.h
@@ -54,6 +54,7 @@ extern struct ppc_emulated {
54#ifdef CONFIG_PPC64 54#ifdef CONFIG_PPC64
55 struct ppc_emulated_entry mfdscr; 55 struct ppc_emulated_entry mfdscr;
56 struct ppc_emulated_entry mtdscr; 56 struct ppc_emulated_entry mtdscr;
57 struct ppc_emulated_entry lq_stq;
57#endif 58#endif
58} ppc_emulated; 59} ppc_emulated;
59 60
diff --git a/arch/powerpc/include/asm/opal.h b/arch/powerpc/include/asm/opal.h
index fe2aa0b48d2b..a2efdaa020b0 100644
--- a/arch/powerpc/include/asm/opal.h
+++ b/arch/powerpc/include/asm/opal.h
@@ -87,6 +87,7 @@ extern int opal_enter_rtas(struct rtas_args *args,
87#define OPAL_ASYNC_COMPLETION -15 87#define OPAL_ASYNC_COMPLETION -15
88 88
89/* API Tokens (in r0) */ 89/* API Tokens (in r0) */
90#define OPAL_INVALID_CALL -1
90#define OPAL_CONSOLE_WRITE 1 91#define OPAL_CONSOLE_WRITE 1
91#define OPAL_CONSOLE_READ 2 92#define OPAL_CONSOLE_READ 2
92#define OPAL_RTC_READ 3 93#define OPAL_RTC_READ 3
@@ -177,6 +178,8 @@ extern int opal_enter_rtas(struct rtas_args *args,
177 178
178#ifndef __ASSEMBLY__ 179#ifndef __ASSEMBLY__
179 180
181#include <linux/notifier.h>
182
180/* Other enums */ 183/* Other enums */
181enum OpalVendorApiTokens { 184enum OpalVendorApiTokens {
182 OPAL_START_VENDOR_API_RANGE = 1000, OPAL_END_VENDOR_API_RANGE = 1999 185 OPAL_START_VENDOR_API_RANGE = 1000, OPAL_END_VENDOR_API_RANGE = 1999
@@ -422,9 +425,9 @@ enum OpalSysparamPerm {
422}; 425};
423 426
424struct opal_msg { 427struct opal_msg {
425 uint32_t msg_type; 428 __be32 msg_type;
426 uint32_t reserved; 429 __be32 reserved;
427 uint64_t params[8]; 430 __be64 params[8];
428}; 431};
429 432
430struct opal_machine_check_event { 433struct opal_machine_check_event {
@@ -730,7 +733,11 @@ typedef struct oppanel_line {
730/* /sys/firmware/opal */ 733/* /sys/firmware/opal */
731extern struct kobject *opal_kobj; 734extern struct kobject *opal_kobj;
732 735
736/* /ibm,opal */
737extern struct device_node *opal_node;
738
733/* API functions */ 739/* API functions */
740int64_t opal_invalid_call(void);
734int64_t opal_console_write(int64_t term_number, __be64 *length, 741int64_t opal_console_write(int64_t term_number, __be64 *length,
735 const uint8_t *buffer); 742 const uint8_t *buffer);
736int64_t opal_console_read(int64_t term_number, __be64 *length, 743int64_t opal_console_read(int64_t term_number, __be64 *length,
@@ -874,8 +881,7 @@ int64_t opal_get_param(uint64_t token, uint32_t param_id, uint64_t buffer,
874 size_t length); 881 size_t length);
875int64_t opal_set_param(uint64_t token, uint32_t param_id, uint64_t buffer, 882int64_t opal_set_param(uint64_t token, uint32_t param_id, uint64_t buffer,
876 size_t length); 883 size_t length);
877int64_t opal_sensor_read(uint32_t sensor_hndl, int token, 884int64_t opal_sensor_read(uint32_t sensor_hndl, int token, __be32 *sensor_data);
878 uint32_t *sensor_data);
879 885
880/* Internal functions */ 886/* Internal functions */
881extern int early_init_dt_scan_opal(unsigned long node, const char *uname, int depth, void *data); 887extern int early_init_dt_scan_opal(unsigned long node, const char *uname, int depth, void *data);
@@ -892,6 +898,8 @@ extern int early_init_dt_scan_opal(unsigned long node, const char *uname,
892 int depth, void *data); 898 int depth, void *data);
893 899
894extern int opal_notifier_register(struct notifier_block *nb); 900extern int opal_notifier_register(struct notifier_block *nb);
901extern int opal_notifier_unregister(struct notifier_block *nb);
902
895extern int opal_message_notifier_register(enum OpalMessageType msg_type, 903extern int opal_message_notifier_register(enum OpalMessageType msg_type,
896 struct notifier_block *nb); 904 struct notifier_block *nb);
897extern void opal_notifier_enable(void); 905extern void opal_notifier_enable(void);
@@ -919,6 +927,7 @@ extern void opal_flash_init(void);
919extern int opal_elog_init(void); 927extern int opal_elog_init(void);
920extern void opal_platform_dump_init(void); 928extern void opal_platform_dump_init(void);
921extern void opal_sys_param_init(void); 929extern void opal_sys_param_init(void);
930extern void opal_msglog_init(void);
922 931
923extern int opal_machine_check(struct pt_regs *regs); 932extern int opal_machine_check(struct pt_regs *regs);
924extern bool opal_mce_check_early_recovery(struct pt_regs *regs); 933extern bool opal_mce_check_early_recovery(struct pt_regs *regs);
diff --git a/arch/powerpc/include/asm/rtas.h b/arch/powerpc/include/asm/rtas.h
index a0e1add01ef5..b390f55b0df1 100644
--- a/arch/powerpc/include/asm/rtas.h
+++ b/arch/powerpc/include/asm/rtas.h
@@ -150,19 +150,53 @@ struct rtas_suspend_me_data {
150#define RTAS_VECTOR_EXTERNAL_INTERRUPT 0x500 150#define RTAS_VECTOR_EXTERNAL_INTERRUPT 0x500
151 151
152struct rtas_error_log { 152struct rtas_error_log {
153 unsigned long version:8; /* Architectural version */ 153 /* Byte 0 */
154 unsigned long severity:3; /* Severity level of error */ 154 uint8_t byte0; /* Architectural version */
155 unsigned long disposition:2; /* Degree of recovery */ 155
156 unsigned long extended:1; /* extended log present? */ 156 /* Byte 1 */
157 unsigned long /* reserved */ :2; /* Reserved for future use */ 157 uint8_t byte1;
158 unsigned long initiator:4; /* Initiator of event */ 158 /* XXXXXXXX
159 unsigned long target:4; /* Target of failed operation */ 159 * XXX 3: Severity level of error
160 unsigned long type:8; /* General event or error*/ 160 * XX 2: Degree of recovery
161 unsigned long extended_log_length:32; /* length in bytes */ 161 * X 1: Extended log present?
162 unsigned char buffer[1]; /* Start of extended log */ 162 * XX 2: Reserved
163 */
164
165 /* Byte 2 */
166 uint8_t byte2;
167 /* XXXXXXXX
168 * XXXX 4: Initiator of event
169 * XXXX 4: Target of failed operation
170 */
171 uint8_t byte3; /* General event or error*/
172 __be32 extended_log_length; /* length in bytes */
173 unsigned char buffer[1]; /* Start of extended log */
163 /* Variable length. */ 174 /* Variable length. */
164}; 175};
165 176
177static inline uint8_t rtas_error_severity(const struct rtas_error_log *elog)
178{
179 return (elog->byte1 & 0xE0) >> 5;
180}
181
182static inline uint8_t rtas_error_disposition(const struct rtas_error_log *elog)
183{
184 return (elog->byte1 & 0x18) >> 3;
185}
186
187static inline uint8_t rtas_error_extended(const struct rtas_error_log *elog)
188{
189 return (elog->byte1 & 0x04) >> 2;
190}
191
192#define rtas_error_type(x) ((x)->byte3)
193
194static inline
195uint32_t rtas_error_extended_log_length(const struct rtas_error_log *elog)
196{
197 return be32_to_cpu(elog->extended_log_length);
198}
199
166#define RTAS_V6EXT_LOG_FORMAT_EVENT_LOG 14 200#define RTAS_V6EXT_LOG_FORMAT_EVENT_LOG 14
167 201
168#define RTAS_V6EXT_COMPANY_ID_IBM (('I' << 24) | ('B' << 16) | ('M' << 8)) 202#define RTAS_V6EXT_COMPANY_ID_IBM (('I' << 24) | ('B' << 16) | ('M' << 8))
@@ -172,32 +206,35 @@ struct rtas_error_log {
172 */ 206 */
173struct rtas_ext_event_log_v6 { 207struct rtas_ext_event_log_v6 {
174 /* Byte 0 */ 208 /* Byte 0 */
175 uint32_t log_valid:1; /* 1:Log valid */ 209 uint8_t byte0;
176 uint32_t unrecoverable_error:1; /* 1:Unrecoverable error */ 210 /* XXXXXXXX
177 uint32_t recoverable_error:1; /* 1:recoverable (correctable */ 211 * X 1: Log valid
178 /* or successfully retried) */ 212 * X 1: Unrecoverable error
179 uint32_t degraded_operation:1; /* 1:Unrecoverable err, bypassed*/ 213 * X 1: Recoverable (correctable or successfully retried)
180 /* - degraded operation (e.g. */ 214 * X 1: Bypassed unrecoverable error (degraded operation)
181 /* CPU or mem taken off-line) */ 215 * X 1: Predictive error
182 uint32_t predictive_error:1; 216 * X 1: "New" log (always 1 for data returned from RTAS)
183 uint32_t new_log:1; /* 1:"New" log (Always 1 for */ 217 * X 1: Big Endian
184 /* data returned from RTAS */ 218 * X 1: Reserved
185 uint32_t big_endian:1; /* 1: Big endian */ 219 */
186 uint32_t :1; /* reserved */ 220
187 /* Byte 1 */ 221 /* Byte 1 */
188 uint32_t :8; /* reserved */ 222 uint8_t byte1; /* reserved */
223
189 /* Byte 2 */ 224 /* Byte 2 */
190 uint32_t powerpc_format:1; /* Set to 1 (indicating log is */ 225 uint8_t byte2;
191 /* in PowerPC format */ 226 /* XXXXXXXX
192 uint32_t :3; /* reserved */ 227 * X 1: Set to 1 (indicating log is in PowerPC format)
193 uint32_t log_format:4; /* Log format indicator. Define */ 228 * XXX 3: Reserved
194 /* format used for byte 12-2047 */ 229 * XXXX 4: Log format used for bytes 12-2047
230 */
231
195 /* Byte 3 */ 232 /* Byte 3 */
196 uint32_t :8; /* reserved */ 233 uint8_t byte3; /* reserved */
197 /* Byte 4-11 */ 234 /* Byte 4-11 */
198 uint8_t reserved[8]; /* reserved */ 235 uint8_t reserved[8]; /* reserved */
199 /* Byte 12-15 */ 236 /* Byte 12-15 */
200 uint32_t company_id; /* Company ID of the company */ 237 __be32 company_id; /* Company ID of the company */
201 /* that defines the format for */ 238 /* that defines the format for */
202 /* the vendor specific log type */ 239 /* the vendor specific log type */
203 /* Byte 16-end of log */ 240 /* Byte 16-end of log */
@@ -205,6 +242,18 @@ struct rtas_ext_event_log_v6 {
205 /* Variable length. */ 242 /* Variable length. */
206}; 243};
207 244
245static
246inline uint8_t rtas_ext_event_log_format(struct rtas_ext_event_log_v6 *ext_log)
247{
248 return ext_log->byte2 & 0x0F;
249}
250
251static
252inline uint32_t rtas_ext_event_company_id(struct rtas_ext_event_log_v6 *ext_log)
253{
254 return be32_to_cpu(ext_log->company_id);
255}
256
208/* pSeries event log format */ 257/* pSeries event log format */
209 258
210/* Two bytes ASCII section IDs */ 259/* Two bytes ASCII section IDs */
@@ -227,14 +276,26 @@ struct rtas_ext_event_log_v6 {
227 276
228/* Vendor specific Platform Event Log Format, Version 6, section header */ 277/* Vendor specific Platform Event Log Format, Version 6, section header */
229struct pseries_errorlog { 278struct pseries_errorlog {
230 uint16_t id; /* 0x00 2-byte ASCII section ID */ 279 __be16 id; /* 0x00 2-byte ASCII section ID */
231 uint16_t length; /* 0x02 Section length in bytes */ 280 __be16 length; /* 0x02 Section length in bytes */
232 uint8_t version; /* 0x04 Section version */ 281 uint8_t version; /* 0x04 Section version */
233 uint8_t subtype; /* 0x05 Section subtype */ 282 uint8_t subtype; /* 0x05 Section subtype */
234 uint16_t creator_component; /* 0x06 Creator component ID */ 283 __be16 creator_component; /* 0x06 Creator component ID */
235 uint8_t data[]; /* 0x08 Start of section data */ 284 uint8_t data[]; /* 0x08 Start of section data */
236}; 285};
237 286
287static
288inline uint16_t pseries_errorlog_id(struct pseries_errorlog *sect)
289{
290 return be16_to_cpu(sect->id);
291}
292
293static
294inline uint16_t pseries_errorlog_length(struct pseries_errorlog *sect)
295{
296 return be16_to_cpu(sect->length);
297}
298
238struct pseries_errorlog *get_pseries_errorlog(struct rtas_error_log *log, 299struct pseries_errorlog *get_pseries_errorlog(struct rtas_error_log *log,
239 uint16_t section_id); 300 uint16_t section_id);
240 301
diff --git a/arch/powerpc/kernel/align.c b/arch/powerpc/kernel/align.c
index de91f3ae631e..94908af308d8 100644
--- a/arch/powerpc/kernel/align.c
+++ b/arch/powerpc/kernel/align.c
@@ -73,7 +73,7 @@ static struct aligninfo aligninfo[128] = {
73 { 8, LD+F }, /* 00 0 1001: lfd */ 73 { 8, LD+F }, /* 00 0 1001: lfd */
74 { 4, ST+F+S }, /* 00 0 1010: stfs */ 74 { 4, ST+F+S }, /* 00 0 1010: stfs */
75 { 8, ST+F }, /* 00 0 1011: stfd */ 75 { 8, ST+F }, /* 00 0 1011: stfd */
76 INVALID, /* 00 0 1100 */ 76 { 16, LD }, /* 00 0 1100: lq */
77 { 8, LD }, /* 00 0 1101: ld/ldu/lwa */ 77 { 8, LD }, /* 00 0 1101: ld/ldu/lwa */
78 INVALID, /* 00 0 1110 */ 78 INVALID, /* 00 0 1110 */
79 { 8, ST }, /* 00 0 1111: std/stdu */ 79 { 8, ST }, /* 00 0 1111: std/stdu */
@@ -140,7 +140,7 @@ static struct aligninfo aligninfo[128] = {
140 { 2, LD+SW }, /* 10 0 1100: lhbrx */ 140 { 2, LD+SW }, /* 10 0 1100: lhbrx */
141 { 4, LD+SE }, /* 10 0 1101 lwa */ 141 { 4, LD+SE }, /* 10 0 1101 lwa */
142 { 2, ST+SW }, /* 10 0 1110: sthbrx */ 142 { 2, ST+SW }, /* 10 0 1110: sthbrx */
143 INVALID, /* 10 0 1111 */ 143 { 16, ST }, /* 10 0 1111: stq */
144 INVALID, /* 10 1 0000 */ 144 INVALID, /* 10 1 0000 */
145 INVALID, /* 10 1 0001 */ 145 INVALID, /* 10 1 0001 */
146 INVALID, /* 10 1 0010 */ 146 INVALID, /* 10 1 0010 */
@@ -385,8 +385,6 @@ static int emulate_fp_pair(unsigned char __user *addr, unsigned int reg,
385 char *ptr1 = (char *) &current->thread.TS_FPR(reg+1); 385 char *ptr1 = (char *) &current->thread.TS_FPR(reg+1);
386 int i, ret, sw = 0; 386 int i, ret, sw = 0;
387 387
388 if (!(flags & F))
389 return 0;
390 if (reg & 1) 388 if (reg & 1)
391 return 0; /* invalid form: FRS/FRT must be even */ 389 return 0; /* invalid form: FRS/FRT must be even */
392 if (flags & SW) 390 if (flags & SW)
@@ -406,6 +404,34 @@ static int emulate_fp_pair(unsigned char __user *addr, unsigned int reg,
406 return 1; /* exception handled and fixed up */ 404 return 1; /* exception handled and fixed up */
407} 405}
408 406
407#ifdef CONFIG_PPC64
408static int emulate_lq_stq(struct pt_regs *regs, unsigned char __user *addr,
409 unsigned int reg, unsigned int flags)
410{
411 char *ptr0 = (char *)&regs->gpr[reg];
412 char *ptr1 = (char *)&regs->gpr[reg+1];
413 int i, ret, sw = 0;
414
415 if (reg & 1)
416 return 0; /* invalid form: GPR must be even */
417 if (flags & SW)
418 sw = 7;
419 ret = 0;
420 for (i = 0; i < 8; ++i) {
421 if (!(flags & ST)) {
422 ret |= __get_user(ptr0[i^sw], addr + i);
423 ret |= __get_user(ptr1[i^sw], addr + i + 8);
424 } else {
425 ret |= __put_user(ptr0[i^sw], addr + i);
426 ret |= __put_user(ptr1[i^sw], addr + i + 8);
427 }
428 }
429 if (ret)
430 return -EFAULT;
431 return 1; /* exception handled and fixed up */
432}
433#endif /* CONFIG_PPC64 */
434
409#ifdef CONFIG_SPE 435#ifdef CONFIG_SPE
410 436
411static struct aligninfo spe_aligninfo[32] = { 437static struct aligninfo spe_aligninfo[32] = {
@@ -914,10 +940,20 @@ int fix_alignment(struct pt_regs *regs)
914 flush_fp_to_thread(current); 940 flush_fp_to_thread(current);
915 } 941 }
916 942
917 /* Special case for 16-byte FP loads and stores */ 943 if ((nb == 16)) {
918 if (nb == 16) { 944 if (flags & F) {
919 PPC_WARN_ALIGNMENT(fp_pair, regs); 945 /* Special case for 16-byte FP loads and stores */
920 return emulate_fp_pair(addr, reg, flags); 946 PPC_WARN_ALIGNMENT(fp_pair, regs);
947 return emulate_fp_pair(addr, reg, flags);
948 } else {
949#ifdef CONFIG_PPC64
950 /* Special case for 16-byte loads and stores */
951 PPC_WARN_ALIGNMENT(lq_stq, regs);
952 return emulate_lq_stq(regs, addr, reg, flags);
953#else
954 return 0;
955#endif
956 }
921 } 957 }
922 958
923 PPC_WARN_ALIGNMENT(unaligned, regs); 959 PPC_WARN_ALIGNMENT(unaligned, regs);
diff --git a/arch/powerpc/kernel/cpu_setup_power.S b/arch/powerpc/kernel/cpu_setup_power.S
index 37d1bb002aa9..1557e7c2c7e1 100644
--- a/arch/powerpc/kernel/cpu_setup_power.S
+++ b/arch/powerpc/kernel/cpu_setup_power.S
@@ -56,7 +56,6 @@ _GLOBAL(__setup_cpu_power8)
56 li r0,0 56 li r0,0
57 mtspr SPRN_LPID,r0 57 mtspr SPRN_LPID,r0
58 mfspr r3,SPRN_LPCR 58 mfspr r3,SPRN_LPCR
59 oris r3, r3, LPCR_AIL_3@h
60 bl __init_LPCR 59 bl __init_LPCR
61 bl __init_HFSCR 60 bl __init_HFSCR
62 bl __init_tlb_power8 61 bl __init_tlb_power8
@@ -75,7 +74,6 @@ _GLOBAL(__restore_cpu_power8)
75 li r0,0 74 li r0,0
76 mtspr SPRN_LPID,r0 75 mtspr SPRN_LPID,r0
77 mfspr r3,SPRN_LPCR 76 mfspr r3,SPRN_LPCR
78 oris r3, r3, LPCR_AIL_3@h
79 bl __init_LPCR 77 bl __init_LPCR
80 bl __init_HFSCR 78 bl __init_HFSCR
81 bl __init_tlb_power8 79 bl __init_tlb_power8
diff --git a/arch/powerpc/kernel/exceptions-64s.S b/arch/powerpc/kernel/exceptions-64s.S
index d9c650ec7dac..3afd3915921a 100644
--- a/arch/powerpc/kernel/exceptions-64s.S
+++ b/arch/powerpc/kernel/exceptions-64s.S
@@ -54,14 +54,6 @@ END_FTR_SECTION_IFSET(CPU_FTR_REAL_LE) \
54 xori r12,r12,MSR_LE ; \ 54 xori r12,r12,MSR_LE ; \
55 mtspr SPRN_SRR1,r12 ; \ 55 mtspr SPRN_SRR1,r12 ; \
56 rfid ; /* return to userspace */ \ 56 rfid ; /* return to userspace */ \
57 b . ; \
582: mfspr r12,SPRN_SRR1 ; \
59 andi. r12,r12,MSR_PR ; \
60 bne 0b ; \
61 mtspr SPRN_SRR0,r3 ; \
62 mtspr SPRN_SRR1,r4 ; \
63 mtspr SPRN_SDR1,r5 ; \
64 rfid ; \
65 b . ; /* prevent speculative execution */ 57 b . ; /* prevent speculative execution */
66 58
67#if defined(CONFIG_RELOCATABLE) 59#if defined(CONFIG_RELOCATABLE)
diff --git a/arch/powerpc/kernel/paca.c b/arch/powerpc/kernel/paca.c
index bf0aada02fe4..ad302f845e5d 100644
--- a/arch/powerpc/kernel/paca.c
+++ b/arch/powerpc/kernel/paca.c
@@ -152,7 +152,8 @@ void __init initialise_paca(struct paca_struct *new_paca, int cpu)
152 new_paca->paca_index = cpu; 152 new_paca->paca_index = cpu;
153 new_paca->kernel_toc = kernel_toc; 153 new_paca->kernel_toc = kernel_toc;
154 new_paca->kernelbase = (unsigned long) _stext; 154 new_paca->kernelbase = (unsigned long) _stext;
155 new_paca->kernel_msr = MSR_KERNEL; 155 /* Only set MSR:IR/DR when MMU is initialized */
156 new_paca->kernel_msr = MSR_KERNEL & ~(MSR_IR | MSR_DR);
156 new_paca->hw_cpu_id = 0xffff; 157 new_paca->hw_cpu_id = 0xffff;
157 new_paca->kexec_state = KEXEC_STATE_NONE; 158 new_paca->kexec_state = KEXEC_STATE_NONE;
158 new_paca->__current = &init_task; 159 new_paca->__current = &init_task;
diff --git a/arch/powerpc/kernel/process.c b/arch/powerpc/kernel/process.c
index af064d28b365..31d021506d21 100644
--- a/arch/powerpc/kernel/process.c
+++ b/arch/powerpc/kernel/process.c
@@ -610,6 +610,31 @@ out_and_saveregs:
610 tm_save_sprs(thr); 610 tm_save_sprs(thr);
611} 611}
612 612
613extern void __tm_recheckpoint(struct thread_struct *thread,
614 unsigned long orig_msr);
615
616void tm_recheckpoint(struct thread_struct *thread,
617 unsigned long orig_msr)
618{
619 unsigned long flags;
620
621 /* We really can't be interrupted here as the TEXASR registers can't
622 * change and later in the trecheckpoint code, we have a userspace R1.
623 * So let's hard disable over this region.
624 */
625 local_irq_save(flags);
626 hard_irq_disable();
627
628 /* The TM SPRs are restored here, so that TEXASR.FS can be set
629 * before the trecheckpoint and no explosion occurs.
630 */
631 tm_restore_sprs(thread);
632
633 __tm_recheckpoint(thread, orig_msr);
634
635 local_irq_restore(flags);
636}
637
613static inline void tm_recheckpoint_new_task(struct task_struct *new) 638static inline void tm_recheckpoint_new_task(struct task_struct *new)
614{ 639{
615 unsigned long msr; 640 unsigned long msr;
@@ -628,13 +653,10 @@ static inline void tm_recheckpoint_new_task(struct task_struct *new)
628 if (!new->thread.regs) 653 if (!new->thread.regs)
629 return; 654 return;
630 655
631 /* The TM SPRs are restored here, so that TEXASR.FS can be set 656 if (!MSR_TM_ACTIVE(new->thread.regs->msr)){
632 * before the trecheckpoint and no explosion occurs. 657 tm_restore_sprs(&new->thread);
633 */
634 tm_restore_sprs(&new->thread);
635
636 if (!MSR_TM_ACTIVE(new->thread.regs->msr))
637 return; 658 return;
659 }
638 msr = new->thread.tm_orig_msr; 660 msr = new->thread.tm_orig_msr;
639 /* Recheckpoint to restore original checkpointed register state. */ 661 /* Recheckpoint to restore original checkpointed register state. */
640 TM_DEBUG("*** tm_recheckpoint of pid %d " 662 TM_DEBUG("*** tm_recheckpoint of pid %d "
diff --git a/arch/powerpc/kernel/prom.c b/arch/powerpc/kernel/prom.c
index dd72bebd708a..668aa4791fd7 100644
--- a/arch/powerpc/kernel/prom.c
+++ b/arch/powerpc/kernel/prom.c
@@ -347,45 +347,45 @@ static int __init early_init_dt_scan_cpus(unsigned long node,
347#endif 347#endif
348 } 348 }
349 349
350 if (found >= 0) { 350 /* Not the boot CPU */
351 DBG("boot cpu: logical %d physical %d\n", found, 351 if (found < 0)
352 be32_to_cpu(intserv[found_thread])); 352 return 0;
353 boot_cpuid = found;
354 set_hard_smp_processor_id(found,
355 be32_to_cpu(intserv[found_thread]));
356 353
357 /* 354 DBG("boot cpu: logical %d physical %d\n", found,
358 * PAPR defines "logical" PVR values for cpus that 355 be32_to_cpu(intserv[found_thread]));
359 * meet various levels of the architecture: 356 boot_cpuid = found;
360 * 0x0f000001 Architecture version 2.04 357 set_hard_smp_processor_id(found, be32_to_cpu(intserv[found_thread]));
361 * 0x0f000002 Architecture version 2.05
362 * If the cpu-version property in the cpu node contains
363 * such a value, we call identify_cpu again with the
364 * logical PVR value in order to use the cpu feature
365 * bits appropriate for the architecture level.
366 *
367 * A POWER6 partition in "POWER6 architected" mode
368 * uses the 0x0f000002 PVR value; in POWER5+ mode
369 * it uses 0x0f000001.
370 */
371 prop = of_get_flat_dt_prop(node, "cpu-version", NULL);
372 if (prop && (be32_to_cpup(prop) & 0xff000000) == 0x0f000000)
373 identify_cpu(0, be32_to_cpup(prop));
374 358
375 identical_pvr_fixup(node); 359 /*
376 } 360 * PAPR defines "logical" PVR values for cpus that
361 * meet various levels of the architecture:
362 * 0x0f000001 Architecture version 2.04
363 * 0x0f000002 Architecture version 2.05
364 * If the cpu-version property in the cpu node contains
365 * such a value, we call identify_cpu again with the
366 * logical PVR value in order to use the cpu feature
367 * bits appropriate for the architecture level.
368 *
369 * A POWER6 partition in "POWER6 architected" mode
370 * uses the 0x0f000002 PVR value; in POWER5+ mode
371 * it uses 0x0f000001.
372 */
373 prop = of_get_flat_dt_prop(node, "cpu-version", NULL);
374 if (prop && (be32_to_cpup(prop) & 0xff000000) == 0x0f000000)
375 identify_cpu(0, be32_to_cpup(prop));
376
377 identical_pvr_fixup(node);
377 378
378 check_cpu_feature_properties(node); 379 check_cpu_feature_properties(node);
379 check_cpu_pa_features(node); 380 check_cpu_pa_features(node);
380 check_cpu_slb_size(node); 381 check_cpu_slb_size(node);
381 382
382#ifdef CONFIG_PPC_PSERIES 383#ifdef CONFIG_PPC64
383 if (nthreads > 1) 384 if (nthreads > 1)
384 cur_cpu_spec->cpu_features |= CPU_FTR_SMT; 385 cur_cpu_spec->cpu_features |= CPU_FTR_SMT;
385 else 386 else
386 cur_cpu_spec->cpu_features &= ~CPU_FTR_SMT; 387 cur_cpu_spec->cpu_features &= ~CPU_FTR_SMT;
387#endif 388#endif
388
389 return 0; 389 return 0;
390} 390}
391 391
@@ -747,6 +747,10 @@ void __init early_init_devtree(void *params)
747 * (altivec support, boot CPU ID, ...) 747 * (altivec support, boot CPU ID, ...)
748 */ 748 */
749 of_scan_flat_dt(early_init_dt_scan_cpus, NULL); 749 of_scan_flat_dt(early_init_dt_scan_cpus, NULL);
750 if (boot_cpuid < 0) {
751 printk("Failed to indentify boot CPU !\n");
752 BUG();
753 }
750 754
751#if defined(CONFIG_SMP) && defined(CONFIG_PPC64) 755#if defined(CONFIG_SMP) && defined(CONFIG_PPC64)
752 /* We'll later wait for secondaries to check in; there are 756 /* We'll later wait for secondaries to check in; there are
diff --git a/arch/powerpc/kernel/rtas.c b/arch/powerpc/kernel/rtas.c
index f386296ff378..8cd5ed049b5d 100644
--- a/arch/powerpc/kernel/rtas.c
+++ b/arch/powerpc/kernel/rtas.c
@@ -993,21 +993,24 @@ struct pseries_errorlog *get_pseries_errorlog(struct rtas_error_log *log,
993 (struct rtas_ext_event_log_v6 *)log->buffer; 993 (struct rtas_ext_event_log_v6 *)log->buffer;
994 struct pseries_errorlog *sect; 994 struct pseries_errorlog *sect;
995 unsigned char *p, *log_end; 995 unsigned char *p, *log_end;
996 uint32_t ext_log_length = rtas_error_extended_log_length(log);
997 uint8_t log_format = rtas_ext_event_log_format(ext_log);
998 uint32_t company_id = rtas_ext_event_company_id(ext_log);
996 999
997 /* Check that we understand the format */ 1000 /* Check that we understand the format */
998 if (log->extended_log_length < sizeof(struct rtas_ext_event_log_v6) || 1001 if (ext_log_length < sizeof(struct rtas_ext_event_log_v6) ||
999 ext_log->log_format != RTAS_V6EXT_LOG_FORMAT_EVENT_LOG || 1002 log_format != RTAS_V6EXT_LOG_FORMAT_EVENT_LOG ||
1000 ext_log->company_id != RTAS_V6EXT_COMPANY_ID_IBM) 1003 company_id != RTAS_V6EXT_COMPANY_ID_IBM)
1001 return NULL; 1004 return NULL;
1002 1005
1003 log_end = log->buffer + log->extended_log_length; 1006 log_end = log->buffer + ext_log_length;
1004 p = ext_log->vendor_log; 1007 p = ext_log->vendor_log;
1005 1008
1006 while (p < log_end) { 1009 while (p < log_end) {
1007 sect = (struct pseries_errorlog *)p; 1010 sect = (struct pseries_errorlog *)p;
1008 if (sect->id == section_id) 1011 if (pseries_errorlog_id(sect) == section_id)
1009 return sect; 1012 return sect;
1010 p += sect->length; 1013 p += pseries_errorlog_length(sect);
1011 } 1014 }
1012 1015
1013 return NULL; 1016 return NULL;
diff --git a/arch/powerpc/kernel/rtasd.c b/arch/powerpc/kernel/rtasd.c
index 1130c53ad652..e736387fee6a 100644
--- a/arch/powerpc/kernel/rtasd.c
+++ b/arch/powerpc/kernel/rtasd.c
@@ -150,8 +150,8 @@ static void printk_log_rtas(char *buf, int len)
150 struct rtas_error_log *errlog = (struct rtas_error_log *)buf; 150 struct rtas_error_log *errlog = (struct rtas_error_log *)buf;
151 151
152 printk(RTAS_DEBUG "event: %d, Type: %s, Severity: %d\n", 152 printk(RTAS_DEBUG "event: %d, Type: %s, Severity: %d\n",
153 error_log_cnt, rtas_event_type(errlog->type), 153 error_log_cnt, rtas_event_type(rtas_error_type(errlog)),
154 errlog->severity); 154 rtas_error_severity(errlog));
155 } 155 }
156} 156}
157 157
@@ -159,14 +159,16 @@ static int log_rtas_len(char * buf)
159{ 159{
160 int len; 160 int len;
161 struct rtas_error_log *err; 161 struct rtas_error_log *err;
162 uint32_t extended_log_length;
162 163
163 /* rtas fixed header */ 164 /* rtas fixed header */
164 len = 8; 165 len = 8;
165 err = (struct rtas_error_log *)buf; 166 err = (struct rtas_error_log *)buf;
166 if (err->extended && err->extended_log_length) { 167 extended_log_length = rtas_error_extended_log_length(err);
168 if (rtas_error_extended(err) && extended_log_length) {
167 169
168 /* extended header */ 170 /* extended header */
169 len += err->extended_log_length; 171 len += extended_log_length;
170 } 172 }
171 173
172 if (rtas_error_log_max == 0) 174 if (rtas_error_log_max == 0)
@@ -293,15 +295,13 @@ void prrn_schedule_update(u32 scope)
293 295
294static void handle_rtas_event(const struct rtas_error_log *log) 296static void handle_rtas_event(const struct rtas_error_log *log)
295{ 297{
296 if (log->type == RTAS_TYPE_PRRN) { 298 if (rtas_error_type(log) != RTAS_TYPE_PRRN || !prrn_is_enabled())
297 /* For PRRN Events the extended log length is used to denote 299 return;
298 * the scope for calling rtas update-nodes.
299 */
300 if (prrn_is_enabled())
301 prrn_schedule_update(log->extended_log_length);
302 }
303 300
304 return; 301 /* For PRRN Events the extended log length is used to denote
302 * the scope for calling rtas update-nodes.
303 */
304 prrn_schedule_update(rtas_error_extended_log_length(log));
305} 305}
306 306
307#else 307#else
diff --git a/arch/powerpc/kernel/setup-common.c b/arch/powerpc/kernel/setup-common.c
index bc76cc6b419c..79b7612ac6fa 100644
--- a/arch/powerpc/kernel/setup-common.c
+++ b/arch/powerpc/kernel/setup-common.c
@@ -76,6 +76,9 @@ EXPORT_SYMBOL(ppc_md);
76struct machdep_calls *machine_id; 76struct machdep_calls *machine_id;
77EXPORT_SYMBOL(machine_id); 77EXPORT_SYMBOL(machine_id);
78 78
79int boot_cpuid = -1;
80EXPORT_SYMBOL_GPL(boot_cpuid);
81
79unsigned long klimit = (unsigned long) _end; 82unsigned long klimit = (unsigned long) _end;
80 83
81char cmd_line[COMMAND_LINE_SIZE]; 84char cmd_line[COMMAND_LINE_SIZE];
diff --git a/arch/powerpc/kernel/setup_32.c b/arch/powerpc/kernel/setup_32.c
index 04cc4fcca78b..ea4fda60e57b 100644
--- a/arch/powerpc/kernel/setup_32.c
+++ b/arch/powerpc/kernel/setup_32.c
@@ -44,8 +44,6 @@
44 44
45extern void bootx_init(unsigned long r4, unsigned long phys); 45extern void bootx_init(unsigned long r4, unsigned long phys);
46 46
47int boot_cpuid = -1;
48EXPORT_SYMBOL_GPL(boot_cpuid);
49int boot_cpuid_phys; 47int boot_cpuid_phys;
50EXPORT_SYMBOL_GPL(boot_cpuid_phys); 48EXPORT_SYMBOL_GPL(boot_cpuid_phys);
51 49
diff --git a/arch/powerpc/kernel/setup_64.c b/arch/powerpc/kernel/setup_64.c
index 4933909cc5c0..3d7a50a08f5e 100644
--- a/arch/powerpc/kernel/setup_64.c
+++ b/arch/powerpc/kernel/setup_64.c
@@ -74,7 +74,6 @@
74#define DBG(fmt...) 74#define DBG(fmt...)
75#endif 75#endif
76 76
77int boot_cpuid = 0;
78int spinning_secondaries; 77int spinning_secondaries;
79u64 ppc64_pft_size; 78u64 ppc64_pft_size;
80 79
@@ -196,6 +195,18 @@ static void fixup_boot_paca(void)
196 get_paca()->data_offset = 0; 195 get_paca()->data_offset = 0;
197} 196}
198 197
198static void cpu_ready_for_interrupts(void)
199{
200 /* Set IR and DR in PACA MSR */
201 get_paca()->kernel_msr = MSR_KERNEL;
202
203 /* Enable AIL if supported */
204 if (cpu_has_feature(CPU_FTR_ARCH_207S)) {
205 unsigned long lpcr = mfspr(SPRN_LPCR);
206 mtspr(SPRN_LPCR, lpcr | LPCR_AIL_3);
207 }
208}
209
199/* 210/*
200 * Early initialization entry point. This is called by head.S 211 * Early initialization entry point. This is called by head.S
201 * with MMU translation disabled. We rely on the "feature" of 212 * with MMU translation disabled. We rely on the "feature" of
@@ -262,6 +273,14 @@ void __init early_setup(unsigned long dt_ptr)
262 /* Initialize the hash table or TLB handling */ 273 /* Initialize the hash table or TLB handling */
263 early_init_mmu(); 274 early_init_mmu();
264 275
276 /*
277 * At this point, we can let interrupts switch to virtual mode
278 * (the MMU has been setup), so adjust the MSR in the PACA to
279 * have IR and DR set and enable AIL if it exists
280 */
281 cpu_ready_for_interrupts();
282
283 /* Reserve large chunks of memory for use by CMA for KVM */
265 kvm_cma_reserve(); 284 kvm_cma_reserve();
266 285
267 /* 286 /*
@@ -294,6 +313,13 @@ void early_setup_secondary(void)
294 313
295 /* Initialize the hash table or TLB handling */ 314 /* Initialize the hash table or TLB handling */
296 early_init_mmu_secondary(); 315 early_init_mmu_secondary();
316
317 /*
318 * At this point, we can let interrupts switch to virtual mode
319 * (the MMU has been setup), so adjust the MSR in the PACA to
320 * have IR and DR set.
321 */
322 cpu_ready_for_interrupts();
297} 323}
298 324
299#endif /* CONFIG_SMP */ 325#endif /* CONFIG_SMP */
diff --git a/arch/powerpc/kernel/signal_32.c b/arch/powerpc/kernel/signal_32.c
index a67e00aa3caa..4e47db686b5d 100644
--- a/arch/powerpc/kernel/signal_32.c
+++ b/arch/powerpc/kernel/signal_32.c
@@ -881,6 +881,8 @@ static long restore_tm_user_regs(struct pt_regs *regs,
881 * transactional versions should be loaded. 881 * transactional versions should be loaded.
882 */ 882 */
883 tm_enable(); 883 tm_enable();
884 /* Make sure the transaction is marked as failed */
885 current->thread.tm_texasr |= TEXASR_FS;
884 /* This loads the checkpointed FP/VEC state, if used */ 886 /* This loads the checkpointed FP/VEC state, if used */
885 tm_recheckpoint(&current->thread, msr); 887 tm_recheckpoint(&current->thread, msr);
886 /* Get the top half of the MSR */ 888 /* Get the top half of the MSR */
diff --git a/arch/powerpc/kernel/signal_64.c b/arch/powerpc/kernel/signal_64.c
index 8d253c29649b..d501dc4dc3e6 100644
--- a/arch/powerpc/kernel/signal_64.c
+++ b/arch/powerpc/kernel/signal_64.c
@@ -527,6 +527,8 @@ static long restore_tm_sigcontexts(struct pt_regs *regs,
527 } 527 }
528#endif 528#endif
529 tm_enable(); 529 tm_enable();
530 /* Make sure the transaction is marked as failed */
531 current->thread.tm_texasr |= TEXASR_FS;
530 /* This loads the checkpointed FP/VEC state, if used */ 532 /* This loads the checkpointed FP/VEC state, if used */
531 tm_recheckpoint(&current->thread, msr); 533 tm_recheckpoint(&current->thread, msr);
532 534
diff --git a/arch/powerpc/kernel/tm.S b/arch/powerpc/kernel/tm.S
index ef47bcbd4352..03567c05950a 100644
--- a/arch/powerpc/kernel/tm.S
+++ b/arch/powerpc/kernel/tm.S
@@ -307,7 +307,7 @@ dont_backup_fp:
307 * Call with IRQs off, stacks get all out of sync for 307 * Call with IRQs off, stacks get all out of sync for
308 * some periods in here! 308 * some periods in here!
309 */ 309 */
310_GLOBAL(tm_recheckpoint) 310_GLOBAL(__tm_recheckpoint)
311 mfcr r5 311 mfcr r5
312 mflr r0 312 mflr r0
313 stw r5, 8(r1) 313 stw r5, 8(r1)
diff --git a/arch/powerpc/kernel/traps.c b/arch/powerpc/kernel/traps.c
index df86f0ce2d36..1bd7ca298fa1 100644
--- a/arch/powerpc/kernel/traps.c
+++ b/arch/powerpc/kernel/traps.c
@@ -1868,6 +1868,7 @@ struct ppc_emulated ppc_emulated = {
1868#ifdef CONFIG_PPC64 1868#ifdef CONFIG_PPC64
1869 WARN_EMULATED_SETUP(mfdscr), 1869 WARN_EMULATED_SETUP(mfdscr),
1870 WARN_EMULATED_SETUP(mtdscr), 1870 WARN_EMULATED_SETUP(mtdscr),
1871 WARN_EMULATED_SETUP(lq_stq),
1871#endif 1872#endif
1872}; 1873};
1873 1874
diff --git a/arch/powerpc/math-emu/mtfsf.c b/arch/powerpc/math-emu/mtfsf.c
index dbce92e4f046..44b0fc8214f4 100644
--- a/arch/powerpc/math-emu/mtfsf.c
+++ b/arch/powerpc/math-emu/mtfsf.c
@@ -11,48 +11,36 @@ mtfsf(unsigned int FM, u32 *frB)
11 u32 mask; 11 u32 mask;
12 u32 fpscr; 12 u32 fpscr;
13 13
14 if (FM == 0) 14 if (likely(FM == 1))
15 return 0; 15 mask = 0x0f;
16 16 else if (likely(FM == 0xff))
17 if (FM == 0xff) 17 mask = ~0;
18 mask = 0x9fffffff;
19 else { 18 else {
20 mask = 0; 19 mask = ((FM & 1) |
21 if (FM & (1 << 0)) 20 ((FM << 3) & 0x10) |
22 mask |= 0x90000000; 21 ((FM << 6) & 0x100) |
23 if (FM & (1 << 1)) 22 ((FM << 9) & 0x1000) |
24 mask |= 0x0f000000; 23 ((FM << 12) & 0x10000) |
25 if (FM & (1 << 2)) 24 ((FM << 15) & 0x100000) |
26 mask |= 0x00f00000; 25 ((FM << 18) & 0x1000000) |
27 if (FM & (1 << 3)) 26 ((FM << 21) & 0x10000000)) * 15;
28 mask |= 0x000f0000;
29 if (FM & (1 << 4))
30 mask |= 0x0000f000;
31 if (FM & (1 << 5))
32 mask |= 0x00000f00;
33 if (FM & (1 << 6))
34 mask |= 0x000000f0;
35 if (FM & (1 << 7))
36 mask |= 0x0000000f;
37 } 27 }
38 28
39 __FPU_FPSCR &= ~(mask); 29 fpscr = ((__FPU_FPSCR & ~mask) | (frB[1] & mask)) &
40 __FPU_FPSCR |= (frB[1] & mask); 30 ~(FPSCR_VX | FPSCR_FEX | 0x800);
41 31
42 __FPU_FPSCR &= ~(FPSCR_VX); 32 if (fpscr & (FPSCR_VXSNAN | FPSCR_VXISI | FPSCR_VXIDI |
43 if (__FPU_FPSCR & (FPSCR_VXSNAN | FPSCR_VXISI | FPSCR_VXIDI |
44 FPSCR_VXZDZ | FPSCR_VXIMZ | FPSCR_VXVC | 33 FPSCR_VXZDZ | FPSCR_VXIMZ | FPSCR_VXVC |
45 FPSCR_VXSOFT | FPSCR_VXSQRT | FPSCR_VXCVI)) 34 FPSCR_VXSOFT | FPSCR_VXSQRT | FPSCR_VXCVI))
46 __FPU_FPSCR |= FPSCR_VX; 35 fpscr |= FPSCR_VX;
47 36
48 fpscr = __FPU_FPSCR; 37 /* The bit order of exception enables and exception status
49 fpscr &= ~(FPSCR_FEX); 38 * is the same. Simply shift and mask to check for enabled
50 if (((fpscr & FPSCR_VX) && (fpscr & FPSCR_VE)) || 39 * exceptions.
51 ((fpscr & FPSCR_OX) && (fpscr & FPSCR_OE)) || 40 */
52 ((fpscr & FPSCR_UX) && (fpscr & FPSCR_UE)) || 41 if (fpscr & (fpscr >> 22) & 0xf8)
53 ((fpscr & FPSCR_ZX) && (fpscr & FPSCR_ZE)) ||
54 ((fpscr & FPSCR_XX) && (fpscr & FPSCR_XE)))
55 fpscr |= FPSCR_FEX; 42 fpscr |= FPSCR_FEX;
43
56 __FPU_FPSCR = fpscr; 44 __FPU_FPSCR = fpscr;
57 45
58#ifdef DEBUG 46#ifdef DEBUG
diff --git a/arch/powerpc/mm/gup.c b/arch/powerpc/mm/gup.c
index c5f734e20b0f..d8746684f606 100644
--- a/arch/powerpc/mm/gup.c
+++ b/arch/powerpc/mm/gup.c
@@ -36,6 +36,11 @@ static noinline int gup_pte_range(pmd_t pmd, unsigned long addr,
36 do { 36 do {
37 pte_t pte = ACCESS_ONCE(*ptep); 37 pte_t pte = ACCESS_ONCE(*ptep);
38 struct page *page; 38 struct page *page;
39 /*
40 * Similar to the PMD case, NUMA hinting must take slow path
41 */
42 if (pte_numa(pte))
43 return 0;
39 44
40 if ((pte_val(pte) & mask) != result) 45 if ((pte_val(pte) & mask) != result)
41 return 0; 46 return 0;
@@ -75,6 +80,14 @@ static int gup_pmd_range(pud_t pud, unsigned long addr, unsigned long end,
75 if (pmd_none(pmd) || pmd_trans_splitting(pmd)) 80 if (pmd_none(pmd) || pmd_trans_splitting(pmd))
76 return 0; 81 return 0;
77 if (pmd_huge(pmd) || pmd_large(pmd)) { 82 if (pmd_huge(pmd) || pmd_large(pmd)) {
83 /*
84 * NUMA hinting faults need to be handled in the GUP
85 * slowpath for accounting purposes and so that they
86 * can be serialised against THP migration.
87 */
88 if (pmd_numa(pmd))
89 return 0;
90
78 if (!gup_hugepte((pte_t *)pmdp, PMD_SIZE, addr, next, 91 if (!gup_hugepte((pte_t *)pmdp, PMD_SIZE, addr, next,
79 write, pages, nr)) 92 write, pages, nr))
80 return 0; 93 return 0;
diff --git a/arch/powerpc/mm/numa.c b/arch/powerpc/mm/numa.c
index 30a42e24bf14..4ebbb9e99286 100644
--- a/arch/powerpc/mm/numa.c
+++ b/arch/powerpc/mm/numa.c
@@ -1591,6 +1591,20 @@ int arch_update_cpu_topology(void)
1591 cpu = cpu_last_thread_sibling(cpu); 1591 cpu = cpu_last_thread_sibling(cpu);
1592 } 1592 }
1593 1593
1594 /*
1595 * In cases where we have nothing to update (because the updates list
1596 * is too short or because the new topology is same as the old one),
1597 * skip invoking update_cpu_topology() via stop-machine(). This is
1598 * necessary (and not just a fast-path optimization) since stop-machine
1599 * can end up electing a random CPU to run update_cpu_topology(), and
1600 * thus trick us into setting up incorrect cpu-node mappings (since
1601 * 'updates' is kzalloc()'ed).
1602 *
1603 * And for the similar reason, we will skip all the following updating.
1604 */
1605 if (!cpumask_weight(&updated_cpus))
1606 goto out;
1607
1594 stop_machine(update_cpu_topology, &updates[0], &updated_cpus); 1608 stop_machine(update_cpu_topology, &updates[0], &updated_cpus);
1595 1609
1596 /* 1610 /*
@@ -1612,6 +1626,7 @@ int arch_update_cpu_topology(void)
1612 changed = 1; 1626 changed = 1;
1613 } 1627 }
1614 1628
1629out:
1615 kfree(updates); 1630 kfree(updates);
1616 return changed; 1631 return changed;
1617} 1632}
diff --git a/arch/powerpc/platforms/cell/spu_syscalls.c b/arch/powerpc/platforms/cell/spu_syscalls.c
index 3844f1397fc3..38e0a1a5cec3 100644
--- a/arch/powerpc/platforms/cell/spu_syscalls.c
+++ b/arch/powerpc/platforms/cell/spu_syscalls.c
@@ -170,7 +170,7 @@ EXPORT_SYMBOL_GPL(register_spu_syscalls);
170void unregister_spu_syscalls(struct spufs_calls *calls) 170void unregister_spu_syscalls(struct spufs_calls *calls)
171{ 171{
172 BUG_ON(spufs_calls->owner != calls->owner); 172 BUG_ON(spufs_calls->owner != calls->owner);
173 rcu_assign_pointer(spufs_calls, NULL); 173 RCU_INIT_POINTER(spufs_calls, NULL);
174 synchronize_rcu(); 174 synchronize_rcu();
175} 175}
176EXPORT_SYMBOL_GPL(unregister_spu_syscalls); 176EXPORT_SYMBOL_GPL(unregister_spu_syscalls);
diff --git a/arch/powerpc/platforms/powernv/Makefile b/arch/powerpc/platforms/powernv/Makefile
index f324ea099503..63cebb9b4d45 100644
--- a/arch/powerpc/platforms/powernv/Makefile
+++ b/arch/powerpc/platforms/powernv/Makefile
@@ -1,6 +1,7 @@
1obj-y += setup.o opal-takeover.o opal-wrappers.o opal.o opal-async.o 1obj-y += setup.o opal-takeover.o opal-wrappers.o opal.o opal-async.o
2obj-y += opal-rtc.o opal-nvram.o opal-lpc.o opal-flash.o 2obj-y += opal-rtc.o opal-nvram.o opal-lpc.o opal-flash.o
3obj-y += rng.o opal-elog.o opal-dump.o opal-sysparam.o opal-sensor.o 3obj-y += rng.o opal-elog.o opal-dump.o opal-sysparam.o opal-sensor.o
4obj-y += opal-msglog.o
4 5
5obj-$(CONFIG_SMP) += smp.o 6obj-$(CONFIG_SMP) += smp.o
6obj-$(CONFIG_PCI) += pci.o pci-p5ioc2.o pci-ioda.o 7obj-$(CONFIG_PCI) += pci.o pci-p5ioc2.o pci-ioda.o
diff --git a/arch/powerpc/platforms/powernv/opal-async.c b/arch/powerpc/platforms/powernv/opal-async.c
index cd0c1354d404..32e2adfa5320 100644
--- a/arch/powerpc/platforms/powernv/opal-async.c
+++ b/arch/powerpc/platforms/powernv/opal-async.c
@@ -125,14 +125,15 @@ static int opal_async_comp_event(struct notifier_block *nb,
125{ 125{
126 struct opal_msg *comp_msg = msg; 126 struct opal_msg *comp_msg = msg;
127 unsigned long flags; 127 unsigned long flags;
128 uint64_t token;
128 129
129 if (msg_type != OPAL_MSG_ASYNC_COMP) 130 if (msg_type != OPAL_MSG_ASYNC_COMP)
130 return 0; 131 return 0;
131 132
132 memcpy(&opal_async_responses[comp_msg->params[0]], comp_msg, 133 token = be64_to_cpu(comp_msg->params[0]);
133 sizeof(*comp_msg)); 134 memcpy(&opal_async_responses[token], comp_msg, sizeof(*comp_msg));
134 spin_lock_irqsave(&opal_async_comp_lock, flags); 135 spin_lock_irqsave(&opal_async_comp_lock, flags);
135 __set_bit(comp_msg->params[0], opal_async_complete_map); 136 __set_bit(token, opal_async_complete_map);
136 spin_unlock_irqrestore(&opal_async_comp_lock, flags); 137 spin_unlock_irqrestore(&opal_async_comp_lock, flags);
137 138
138 wake_up(&opal_async_wait); 139 wake_up(&opal_async_wait);
diff --git a/arch/powerpc/platforms/powernv/opal-dump.c b/arch/powerpc/platforms/powernv/opal-dump.c
index 0c767c561dc9..b9827b0d87e4 100644
--- a/arch/powerpc/platforms/powernv/opal-dump.c
+++ b/arch/powerpc/platforms/powernv/opal-dump.c
@@ -86,19 +86,14 @@ static int64_t dump_send_ack(uint32_t dump_id)
86 return rc; 86 return rc;
87} 87}
88 88
89static void delay_release_kobj(void *kobj)
90{
91 kobject_put((struct kobject *)kobj);
92}
93
94static ssize_t dump_ack_store(struct dump_obj *dump_obj, 89static ssize_t dump_ack_store(struct dump_obj *dump_obj,
95 struct dump_attribute *attr, 90 struct dump_attribute *attr,
96 const char *buf, 91 const char *buf,
97 size_t count) 92 size_t count)
98{ 93{
99 dump_send_ack(dump_obj->id); 94 dump_send_ack(dump_obj->id);
100 sysfs_schedule_callback(&dump_obj->kobj, delay_release_kobj, 95 sysfs_remove_file_self(&dump_obj->kobj, &attr->attr);
101 &dump_obj->kobj, THIS_MODULE); 96 kobject_put(&dump_obj->kobj);
102 return count; 97 return count;
103} 98}
104 99
diff --git a/arch/powerpc/platforms/powernv/opal-elog.c b/arch/powerpc/platforms/powernv/opal-elog.c
index 1d7355bc9db0..ef7bc2a97862 100644
--- a/arch/powerpc/platforms/powernv/opal-elog.c
+++ b/arch/powerpc/platforms/powernv/opal-elog.c
@@ -70,19 +70,14 @@ static ssize_t elog_ack_show(struct elog_obj *elog_obj,
70 return sprintf(buf, "ack - acknowledge log message\n"); 70 return sprintf(buf, "ack - acknowledge log message\n");
71} 71}
72 72
73static void delay_release_kobj(void *kobj)
74{
75 kobject_put((struct kobject *)kobj);
76}
77
78static ssize_t elog_ack_store(struct elog_obj *elog_obj, 73static ssize_t elog_ack_store(struct elog_obj *elog_obj,
79 struct elog_attribute *attr, 74 struct elog_attribute *attr,
80 const char *buf, 75 const char *buf,
81 size_t count) 76 size_t count)
82{ 77{
83 opal_send_ack_elog(elog_obj->id); 78 opal_send_ack_elog(elog_obj->id);
84 sysfs_schedule_callback(&elog_obj->kobj, delay_release_kobj, 79 sysfs_remove_file_self(&elog_obj->kobj, &attr->attr);
85 &elog_obj->kobj, THIS_MODULE); 80 kobject_put(&elog_obj->kobj);
86 return count; 81 return count;
87} 82}
88 83
diff --git a/arch/powerpc/platforms/powernv/opal-msglog.c b/arch/powerpc/platforms/powernv/opal-msglog.c
new file mode 100644
index 000000000000..1bb25b952504
--- /dev/null
+++ b/arch/powerpc/platforms/powernv/opal-msglog.c
@@ -0,0 +1,120 @@
1/*
2 * PowerNV OPAL in-memory console interface
3 *
4 * Copyright 2014 IBM Corp.
5 *
6 * This program is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU General Public License
8 * as published by the Free Software Foundation; either version
9 * 2 of the License, or (at your option) any later version.
10 */
11
12#include <asm/io.h>
13#include <asm/opal.h>
14#include <linux/debugfs.h>
15#include <linux/of.h>
16#include <linux/types.h>
17#include <asm/barrier.h>
18
19/* OPAL in-memory console. Defined in OPAL source at core/console.c */
20struct memcons {
21 __be64 magic;
22#define MEMCONS_MAGIC 0x6630696567726173L
23 __be64 obuf_phys;
24 __be64 ibuf_phys;
25 __be32 obuf_size;
26 __be32 ibuf_size;
27 __be32 out_pos;
28#define MEMCONS_OUT_POS_WRAP 0x80000000u
29#define MEMCONS_OUT_POS_MASK 0x00ffffffu
30 __be32 in_prod;
31 __be32 in_cons;
32};
33
34static ssize_t opal_msglog_read(struct file *file, struct kobject *kobj,
35 struct bin_attribute *bin_attr, char *to,
36 loff_t pos, size_t count)
37{
38 struct memcons *mc = bin_attr->private;
39 const char *conbuf;
40 size_t ret, first_read = 0;
41 uint32_t out_pos, avail;
42
43 if (!mc)
44 return -ENODEV;
45
46 out_pos = be32_to_cpu(ACCESS_ONCE(mc->out_pos));
47
48 /* Now we've read out_pos, put a barrier in before reading the new
49 * data it points to in conbuf. */
50 smp_rmb();
51
52 conbuf = phys_to_virt(be64_to_cpu(mc->obuf_phys));
53
54 /* When the buffer has wrapped, read from the out_pos marker to the end
55 * of the buffer, and then read the remaining data as in the un-wrapped
56 * case. */
57 if (out_pos & MEMCONS_OUT_POS_WRAP) {
58
59 out_pos &= MEMCONS_OUT_POS_MASK;
60 avail = be32_to_cpu(mc->obuf_size) - out_pos;
61
62 ret = memory_read_from_buffer(to, count, &pos,
63 conbuf + out_pos, avail);
64
65 if (ret < 0)
66 goto out;
67
68 first_read = ret;
69 to += first_read;
70 count -= first_read;
71 pos -= avail;
72 }
73
74 /* Sanity check. The firmware should not do this to us. */
75 if (out_pos > be32_to_cpu(mc->obuf_size)) {
76 pr_err("OPAL: memory console corruption. Aborting read.\n");
77 return -EINVAL;
78 }
79
80 ret = memory_read_from_buffer(to, count, &pos, conbuf, out_pos);
81
82 if (ret < 0)
83 goto out;
84
85 ret += first_read;
86out:
87 return ret;
88}
89
90static struct bin_attribute opal_msglog_attr = {
91 .attr = {.name = "msglog", .mode = 0444},
92 .read = opal_msglog_read
93};
94
95void __init opal_msglog_init(void)
96{
97 u64 mcaddr;
98 struct memcons *mc;
99
100 if (of_property_read_u64(opal_node, "ibm,opal-memcons", &mcaddr)) {
101 pr_warn("OPAL: Property ibm,opal-memcons not found, no message log\n");
102 return;
103 }
104
105 mc = phys_to_virt(mcaddr);
106 if (!mc) {
107 pr_warn("OPAL: memory console address is invalid\n");
108 return;
109 }
110
111 if (be64_to_cpu(mc->magic) != MEMCONS_MAGIC) {
112 pr_warn("OPAL: memory console version is invalid\n");
113 return;
114 }
115
116 opal_msglog_attr.private = mc;
117
118 if (sysfs_create_bin_file(opal_kobj, &opal_msglog_attr) != 0)
119 pr_warn("OPAL: sysfs file creation failed\n");
120}
diff --git a/arch/powerpc/platforms/powernv/opal-sensor.c b/arch/powerpc/platforms/powernv/opal-sensor.c
index 663cc9c65613..10271ad1fac4 100644
--- a/arch/powerpc/platforms/powernv/opal-sensor.c
+++ b/arch/powerpc/platforms/powernv/opal-sensor.c
@@ -33,6 +33,7 @@ int opal_get_sensor_data(u32 sensor_hndl, u32 *sensor_data)
33{ 33{
34 int ret, token; 34 int ret, token;
35 struct opal_msg msg; 35 struct opal_msg msg;
36 __be32 data;
36 37
37 token = opal_async_get_token_interruptible(); 38 token = opal_async_get_token_interruptible();
38 if (token < 0) { 39 if (token < 0) {
@@ -42,7 +43,7 @@ int opal_get_sensor_data(u32 sensor_hndl, u32 *sensor_data)
42 } 43 }
43 44
44 mutex_lock(&opal_sensor_mutex); 45 mutex_lock(&opal_sensor_mutex);
45 ret = opal_sensor_read(sensor_hndl, token, sensor_data); 46 ret = opal_sensor_read(sensor_hndl, token, &data);
46 if (ret != OPAL_ASYNC_COMPLETION) 47 if (ret != OPAL_ASYNC_COMPLETION)
47 goto out_token; 48 goto out_token;
48 49
@@ -53,7 +54,8 @@ int opal_get_sensor_data(u32 sensor_hndl, u32 *sensor_data)
53 goto out_token; 54 goto out_token;
54 } 55 }
55 56
56 ret = msg.params[1]; 57 *sensor_data = be32_to_cpu(data);
58 ret = be64_to_cpu(msg.params[1]);
57 59
58out_token: 60out_token:
59 mutex_unlock(&opal_sensor_mutex); 61 mutex_unlock(&opal_sensor_mutex);
diff --git a/arch/powerpc/platforms/powernv/opal-sysparam.c b/arch/powerpc/platforms/powernv/opal-sysparam.c
index 0bd249a26f30..6b614726baf2 100644
--- a/arch/powerpc/platforms/powernv/opal-sysparam.c
+++ b/arch/powerpc/platforms/powernv/opal-sysparam.c
@@ -64,7 +64,7 @@ static int opal_get_sys_param(u32 param_id, u32 length, void *buffer)
64 goto out_token; 64 goto out_token;
65 } 65 }
66 66
67 ret = msg.params[1]; 67 ret = be64_to_cpu(msg.params[1]);
68 68
69out_token: 69out_token:
70 opal_async_release_token(token); 70 opal_async_release_token(token);
@@ -98,7 +98,7 @@ static int opal_set_sys_param(u32 param_id, u32 length, void *buffer)
98 goto out_token; 98 goto out_token;
99 } 99 }
100 100
101 ret = msg.params[1]; 101 ret = be64_to_cpu(msg.params[1]);
102 102
103out_token: 103out_token:
104 opal_async_release_token(token); 104 opal_async_release_token(token);
diff --git a/arch/powerpc/platforms/powernv/opal-wrappers.S b/arch/powerpc/platforms/powernv/opal-wrappers.S
index bb90f9a4e027..f531ffe35b3e 100644
--- a/arch/powerpc/platforms/powernv/opal-wrappers.S
+++ b/arch/powerpc/platforms/powernv/opal-wrappers.S
@@ -61,6 +61,7 @@ _STATIC(opal_return)
61 mtcr r4; 61 mtcr r4;
62 rfid 62 rfid
63 63
64OPAL_CALL(opal_invalid_call, OPAL_INVALID_CALL);
64OPAL_CALL(opal_console_write, OPAL_CONSOLE_WRITE); 65OPAL_CALL(opal_console_write, OPAL_CONSOLE_WRITE);
65OPAL_CALL(opal_console_read, OPAL_CONSOLE_READ); 66OPAL_CALL(opal_console_read, OPAL_CONSOLE_READ);
66OPAL_CALL(opal_console_write_buffer_space, OPAL_CONSOLE_WRITE_BUFFER_SPACE); 67OPAL_CALL(opal_console_write_buffer_space, OPAL_CONSOLE_WRITE_BUFFER_SPACE);
diff --git a/arch/powerpc/platforms/powernv/opal.c b/arch/powerpc/platforms/powernv/opal.c
index e92f2f67640f..49d2f00019e5 100644
--- a/arch/powerpc/platforms/powernv/opal.c
+++ b/arch/powerpc/platforms/powernv/opal.c
@@ -46,7 +46,7 @@ struct mcheck_recoverable_range {
46static struct mcheck_recoverable_range *mc_recoverable_range; 46static struct mcheck_recoverable_range *mc_recoverable_range;
47static int mc_recoverable_range_len; 47static int mc_recoverable_range_len;
48 48
49static struct device_node *opal_node; 49struct device_node *opal_node;
50static DEFINE_SPINLOCK(opal_write_lock); 50static DEFINE_SPINLOCK(opal_write_lock);
51extern u64 opal_mc_secondary_handler[]; 51extern u64 opal_mc_secondary_handler[];
52static unsigned int *opal_irqs; 52static unsigned int *opal_irqs;
@@ -102,13 +102,13 @@ int __init early_init_dt_scan_opal(unsigned long node,
102int __init early_init_dt_scan_recoverable_ranges(unsigned long node, 102int __init early_init_dt_scan_recoverable_ranges(unsigned long node,
103 const char *uname, int depth, void *data) 103 const char *uname, int depth, void *data)
104{ 104{
105 unsigned long i, size; 105 unsigned long i, psize, size;
106 const __be32 *prop; 106 const __be32 *prop;
107 107
108 if (depth != 1 || strcmp(uname, "ibm,opal") != 0) 108 if (depth != 1 || strcmp(uname, "ibm,opal") != 0)
109 return 0; 109 return 0;
110 110
111 prop = of_get_flat_dt_prop(node, "mcheck-recoverable-ranges", &size); 111 prop = of_get_flat_dt_prop(node, "mcheck-recoverable-ranges", &psize);
112 112
113 if (!prop) 113 if (!prop)
114 return 1; 114 return 1;
@@ -116,6 +116,23 @@ int __init early_init_dt_scan_recoverable_ranges(unsigned long node,
116 pr_debug("Found machine check recoverable ranges.\n"); 116 pr_debug("Found machine check recoverable ranges.\n");
117 117
118 /* 118 /*
119 * Calculate number of available entries.
120 *
121 * Each recoverable address range entry is (start address, len,
122 * recovery address), 2 cells each for start and recovery address,
123 * 1 cell for len, totalling 5 cells per entry.
124 */
125 mc_recoverable_range_len = psize / (sizeof(*prop) * 5);
126
127 /* Sanity check */
128 if (!mc_recoverable_range_len)
129 return 1;
130
131 /* Size required to hold all the entries. */
132 size = mc_recoverable_range_len *
133 sizeof(struct mcheck_recoverable_range);
134
135 /*
119 * Allocate a buffer to hold the MC recoverable ranges. We would be 136 * Allocate a buffer to hold the MC recoverable ranges. We would be
120 * accessing them in real mode, hence it needs to be within 137 * accessing them in real mode, hence it needs to be within
121 * RMO region. 138 * RMO region.
@@ -124,11 +141,7 @@ int __init early_init_dt_scan_recoverable_ranges(unsigned long node,
124 ppc64_rma_size)); 141 ppc64_rma_size));
125 memset(mc_recoverable_range, 0, size); 142 memset(mc_recoverable_range, 0, size);
126 143
127 /* 144 for (i = 0; i < mc_recoverable_range_len; i++) {
128 * Each recoverable address entry is an (start address,len,
129 * recover address) pair, * 2 cells each, totalling 4 cells per entry.
130 */
131 for (i = 0; i < size / (sizeof(*prop) * 5); i++) {
132 mc_recoverable_range[i].start_addr = 145 mc_recoverable_range[i].start_addr =
133 of_read_number(prop + (i * 5) + 0, 2); 146 of_read_number(prop + (i * 5) + 0, 2);
134 mc_recoverable_range[i].end_addr = 147 mc_recoverable_range[i].end_addr =
@@ -142,7 +155,6 @@ int __init early_init_dt_scan_recoverable_ranges(unsigned long node,
142 mc_recoverable_range[i].end_addr, 155 mc_recoverable_range[i].end_addr,
143 mc_recoverable_range[i].recover_addr); 156 mc_recoverable_range[i].recover_addr);
144 } 157 }
145 mc_recoverable_range_len = i;
146 return 1; 158 return 1;
147} 159}
148 160
@@ -180,6 +192,20 @@ int opal_notifier_register(struct notifier_block *nb)
180 atomic_notifier_chain_register(&opal_notifier_head, nb); 192 atomic_notifier_chain_register(&opal_notifier_head, nb);
181 return 0; 193 return 0;
182} 194}
195EXPORT_SYMBOL_GPL(opal_notifier_register);
196
197int opal_notifier_unregister(struct notifier_block *nb)
198{
199 if (!nb) {
200 pr_warning("%s: Invalid argument (%p)\n",
201 __func__, nb);
202 return -EINVAL;
203 }
204
205 atomic_notifier_chain_unregister(&opal_notifier_head, nb);
206 return 0;
207}
208EXPORT_SYMBOL_GPL(opal_notifier_unregister);
183 209
184static void opal_do_notifier(uint64_t events) 210static void opal_do_notifier(uint64_t events)
185{ 211{
@@ -267,6 +293,7 @@ static void opal_handle_message(void)
267 * value in /proc/device-tree. 293 * value in /proc/device-tree.
268 */ 294 */
269 static struct opal_msg msg; 295 static struct opal_msg msg;
296 u32 type;
270 297
271 ret = opal_get_msg(__pa(&msg), sizeof(msg)); 298 ret = opal_get_msg(__pa(&msg), sizeof(msg));
272 /* No opal message pending. */ 299 /* No opal message pending. */
@@ -280,13 +307,14 @@ static void opal_handle_message(void)
280 return; 307 return;
281 } 308 }
282 309
310 type = be32_to_cpu(msg.msg_type);
311
283 /* Sanity check */ 312 /* Sanity check */
284 if (msg.msg_type > OPAL_MSG_TYPE_MAX) { 313 if (type > OPAL_MSG_TYPE_MAX) {
285 pr_warning("%s: Unknown message type: %u\n", 314 pr_warning("%s: Unknown message type: %u\n", __func__, type);
286 __func__, msg.msg_type);
287 return; 315 return;
288 } 316 }
289 opal_message_do_notify(msg.msg_type, (void *)&msg); 317 opal_message_do_notify(type, (void *)&msg);
290} 318}
291 319
292static int opal_message_notify(struct notifier_block *nb, 320static int opal_message_notify(struct notifier_block *nb,
@@ -574,6 +602,8 @@ static int __init opal_init(void)
574 opal_platform_dump_init(); 602 opal_platform_dump_init();
575 /* Setup system parameters interface */ 603 /* Setup system parameters interface */
576 opal_sys_param_init(); 604 opal_sys_param_init();
605 /* Setup message log interface. */
606 opal_msglog_init();
577 } 607 }
578 608
579 return 0; 609 return 0;
@@ -605,3 +635,6 @@ void opal_shutdown(void)
605 mdelay(10); 635 mdelay(10);
606 } 636 }
607} 637}
638
639/* Export this so that test modules can use it */
640EXPORT_SYMBOL_GPL(opal_invalid_call);
diff --git a/arch/powerpc/platforms/pseries/io_event_irq.c b/arch/powerpc/platforms/pseries/io_event_irq.c
index 5ea88d1541f7..0240c4ff878a 100644
--- a/arch/powerpc/platforms/pseries/io_event_irq.c
+++ b/arch/powerpc/platforms/pseries/io_event_irq.c
@@ -82,9 +82,9 @@ static struct pseries_io_event * ioei_find_event(struct rtas_error_log *elog)
82 * RTAS_TYPE_IO only exists in extended event log version 6 or later. 82 * RTAS_TYPE_IO only exists in extended event log version 6 or later.
83 * No need to check event log version. 83 * No need to check event log version.
84 */ 84 */
85 if (unlikely(elog->type != RTAS_TYPE_IO)) { 85 if (unlikely(rtas_error_type(elog) != RTAS_TYPE_IO)) {
86 printk_once(KERN_WARNING "io_event_irq: Unexpected event type %d", 86 printk_once(KERN_WARNING"io_event_irq: Unexpected event type %d",
87 elog->type); 87 rtas_error_type(elog));
88 return NULL; 88 return NULL;
89 } 89 }
90 90
diff --git a/arch/powerpc/platforms/pseries/nvram.c b/arch/powerpc/platforms/pseries/nvram.c
index d7096f2f7751..0cc240b7f694 100644
--- a/arch/powerpc/platforms/pseries/nvram.c
+++ b/arch/powerpc/platforms/pseries/nvram.c
@@ -298,13 +298,13 @@ int nvram_write_os_partition(struct nvram_os_partition *part, char * buff,
298 298
299 rc = ppc_md.nvram_write((char *)&info, sizeof(struct err_log_info), &tmp_index); 299 rc = ppc_md.nvram_write((char *)&info, sizeof(struct err_log_info), &tmp_index);
300 if (rc <= 0) { 300 if (rc <= 0) {
301 pr_err("%s: Failed nvram_write (%d)\n", __FUNCTION__, rc); 301 pr_err("%s: Failed nvram_write (%d)\n", __func__, rc);
302 return rc; 302 return rc;
303 } 303 }
304 304
305 rc = ppc_md.nvram_write(buff, length, &tmp_index); 305 rc = ppc_md.nvram_write(buff, length, &tmp_index);
306 if (rc <= 0) { 306 if (rc <= 0) {
307 pr_err("%s: Failed nvram_write (%d)\n", __FUNCTION__, rc); 307 pr_err("%s: Failed nvram_write (%d)\n", __func__, rc);
308 return rc; 308 return rc;
309 } 309 }
310 310
@@ -351,15 +351,14 @@ int nvram_read_partition(struct nvram_os_partition *part, char *buff,
351 sizeof(struct err_log_info), 351 sizeof(struct err_log_info),
352 &tmp_index); 352 &tmp_index);
353 if (rc <= 0) { 353 if (rc <= 0) {
354 pr_err("%s: Failed nvram_read (%d)\n", __FUNCTION__, 354 pr_err("%s: Failed nvram_read (%d)\n", __func__, rc);
355 rc);
356 return rc; 355 return rc;
357 } 356 }
358 } 357 }
359 358
360 rc = ppc_md.nvram_read(buff, length, &tmp_index); 359 rc = ppc_md.nvram_read(buff, length, &tmp_index);
361 if (rc <= 0) { 360 if (rc <= 0) {
362 pr_err("%s: Failed nvram_read (%d)\n", __FUNCTION__, rc); 361 pr_err("%s: Failed nvram_read (%d)\n", __func__, rc);
363 return rc; 362 return rc;
364 } 363 }
365 364
@@ -869,7 +868,7 @@ static void oops_to_nvram(struct kmsg_dumper *dumper,
869 break; 868 break;
870 default: 869 default:
871 pr_err("%s: ignoring unrecognized KMSG_DUMP_* reason %d\n", 870 pr_err("%s: ignoring unrecognized KMSG_DUMP_* reason %d\n",
872 __FUNCTION__, (int) reason); 871 __func__, (int) reason);
873 return; 872 return;
874 } 873 }
875 874
diff --git a/arch/powerpc/platforms/pseries/ras.c b/arch/powerpc/platforms/pseries/ras.c
index 721c0586b284..9c5778e6ed4b 100644
--- a/arch/powerpc/platforms/pseries/ras.c
+++ b/arch/powerpc/platforms/pseries/ras.c
@@ -236,7 +236,8 @@ static irqreturn_t ras_error_interrupt(int irq, void *dev_id)
236 236
237 rtas_elog = (struct rtas_error_log *)ras_log_buf; 237 rtas_elog = (struct rtas_error_log *)ras_log_buf;
238 238
239 if ((status == 0) && (rtas_elog->severity >= RTAS_SEVERITY_ERROR_SYNC)) 239 if (status == 0 &&
240 rtas_error_severity(rtas_elog) >= RTAS_SEVERITY_ERROR_SYNC)
240 fatal = 1; 241 fatal = 1;
241 else 242 else
242 fatal = 0; 243 fatal = 0;
@@ -300,13 +301,14 @@ static struct rtas_error_log *fwnmi_get_errinfo(struct pt_regs *regs)
300 301
301 /* If it isn't an extended log we can use the per cpu 64bit buffer */ 302 /* If it isn't an extended log we can use the per cpu 64bit buffer */
302 h = (struct rtas_error_log *)&savep[1]; 303 h = (struct rtas_error_log *)&savep[1];
303 if (!h->extended) { 304 if (!rtas_error_extended(h)) {
304 memcpy(&__get_cpu_var(mce_data_buf), h, sizeof(__u64)); 305 memcpy(&__get_cpu_var(mce_data_buf), h, sizeof(__u64));
305 errhdr = (struct rtas_error_log *)&__get_cpu_var(mce_data_buf); 306 errhdr = (struct rtas_error_log *)&__get_cpu_var(mce_data_buf);
306 } else { 307 } else {
307 int len; 308 int len, error_log_length;
308 309
309 len = max_t(int, 8+h->extended_log_length, RTAS_ERROR_LOG_MAX); 310 error_log_length = 8 + rtas_error_extended_log_length(h);
311 len = max_t(int, error_log_length, RTAS_ERROR_LOG_MAX);
310 memset(global_mce_data_buf, 0, RTAS_ERROR_LOG_MAX); 312 memset(global_mce_data_buf, 0, RTAS_ERROR_LOG_MAX);
311 memcpy(global_mce_data_buf, h, len); 313 memcpy(global_mce_data_buf, h, len);
312 errhdr = (struct rtas_error_log *)global_mce_data_buf; 314 errhdr = (struct rtas_error_log *)global_mce_data_buf;
@@ -350,23 +352,24 @@ int pSeries_system_reset_exception(struct pt_regs *regs)
350static int recover_mce(struct pt_regs *regs, struct rtas_error_log *err) 352static int recover_mce(struct pt_regs *regs, struct rtas_error_log *err)
351{ 353{
352 int recovered = 0; 354 int recovered = 0;
355 int disposition = rtas_error_disposition(err);
353 356
354 if (!(regs->msr & MSR_RI)) { 357 if (!(regs->msr & MSR_RI)) {
355 /* If MSR_RI isn't set, we cannot recover */ 358 /* If MSR_RI isn't set, we cannot recover */
356 recovered = 0; 359 recovered = 0;
357 360
358 } else if (err->disposition == RTAS_DISP_FULLY_RECOVERED) { 361 } else if (disposition == RTAS_DISP_FULLY_RECOVERED) {
359 /* Platform corrected itself */ 362 /* Platform corrected itself */
360 recovered = 1; 363 recovered = 1;
361 364
362 } else if (err->disposition == RTAS_DISP_LIMITED_RECOVERY) { 365 } else if (disposition == RTAS_DISP_LIMITED_RECOVERY) {
363 /* Platform corrected itself but could be degraded */ 366 /* Platform corrected itself but could be degraded */
364 printk(KERN_ERR "MCE: limited recovery, system may " 367 printk(KERN_ERR "MCE: limited recovery, system may "
365 "be degraded\n"); 368 "be degraded\n");
366 recovered = 1; 369 recovered = 1;
367 370
368 } else if (user_mode(regs) && !is_global_init(current) && 371 } else if (user_mode(regs) && !is_global_init(current) &&
369 err->severity == RTAS_SEVERITY_ERROR_SYNC) { 372 rtas_error_severity(err) == RTAS_SEVERITY_ERROR_SYNC) {
370 373
371 /* 374 /*
372 * If we received a synchronous error when in userspace 375 * If we received a synchronous error when in userspace
diff --git a/arch/powerpc/sysdev/msi_bitmap.c b/arch/powerpc/sysdev/msi_bitmap.c
index 8ba60424be95..2ff630267e9e 100644
--- a/arch/powerpc/sysdev/msi_bitmap.c
+++ b/arch/powerpc/sysdev/msi_bitmap.c
@@ -202,7 +202,7 @@ void __init test_of_node(void)
202 202
203 /* There should really be a struct device_node allocator */ 203 /* There should really be a struct device_node allocator */
204 memset(&of_node, 0, sizeof(of_node)); 204 memset(&of_node, 0, sizeof(of_node));
205 kref_init(&of_node.kobj.kref); 205 of_node_init(&of_node);
206 of_node.full_name = node_name; 206 of_node.full_name = node_name;
207 207
208 check(0 == msi_bitmap_alloc(&bmp, size, &of_node)); 208 check(0 == msi_bitmap_alloc(&bmp, size, &of_node));
diff --git a/drivers/hwmon/Kconfig b/drivers/hwmon/Kconfig
index b13172cfbeef..bc196f49ec53 100644
--- a/drivers/hwmon/Kconfig
+++ b/drivers/hwmon/Kconfig
@@ -554,14 +554,6 @@ config SENSORS_IBMPEX
554 This driver can also be built as a module. If so, the module 554 This driver can also be built as a module. If so, the module
555 will be called ibmpex. 555 will be called ibmpex.
556 556
557config SENSORS_IBMPOWERNV
558 tristate "IBM PowerNv Platform temperature/power/fan sensor"
559 depends on PPC_POWERNV
560 default y
561 help
562 If you say yes here you get support for the temperature/fan/power
563 sensors on your platform.
564
565config SENSORS_IIO_HWMON 557config SENSORS_IIO_HWMON
566 tristate "Hwmon driver that uses channels specified via iio maps" 558 tristate "Hwmon driver that uses channels specified via iio maps"
567 depends on IIO 559 depends on IIO
diff --git a/drivers/hwmon/Makefile b/drivers/hwmon/Makefile
index 199c401bf8d9..c48f9873ac73 100644
--- a/drivers/hwmon/Makefile
+++ b/drivers/hwmon/Makefile
@@ -71,7 +71,6 @@ obj-$(CONFIG_SENSORS_ULTRA45) += ultra45_env.o
71obj-$(CONFIG_SENSORS_I5K_AMB) += i5k_amb.o 71obj-$(CONFIG_SENSORS_I5K_AMB) += i5k_amb.o
72obj-$(CONFIG_SENSORS_IBMAEM) += ibmaem.o 72obj-$(CONFIG_SENSORS_IBMAEM) += ibmaem.o
73obj-$(CONFIG_SENSORS_IBMPEX) += ibmpex.o 73obj-$(CONFIG_SENSORS_IBMPEX) += ibmpex.o
74obj-$(CONFIG_SENSORS_IBMPOWERNV)+= ibmpowernv.o
75obj-$(CONFIG_SENSORS_IIO_HWMON) += iio_hwmon.o 74obj-$(CONFIG_SENSORS_IIO_HWMON) += iio_hwmon.o
76obj-$(CONFIG_SENSORS_INA209) += ina209.o 75obj-$(CONFIG_SENSORS_INA209) += ina209.o
77obj-$(CONFIG_SENSORS_INA2XX) += ina2xx.o 76obj-$(CONFIG_SENSORS_INA2XX) += ina2xx.o
diff --git a/drivers/hwmon/ibmpowernv.c b/drivers/hwmon/ibmpowernv.c
deleted file mode 100644
index b7b1297a9b02..000000000000
--- a/drivers/hwmon/ibmpowernv.c
+++ /dev/null
@@ -1,529 +0,0 @@
1/*
2 * hwmon driver for temperature/power/fan on IBM PowerNV platform
3 * Copyright (C) 2013 IBM
4 *
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation; either version 2 of the License, or
8 * (at your option) any later version.
9 *
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
14 *
15 * You should have received a copy of the GNU General Public License
16 * along with this program; if not, write to the Free Software
17 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
18 */
19
20#include <linux/init.h>
21#include <linux/module.h>
22#include <linux/kernel.h>
23#include <linux/hwmon.h>
24#include <linux/hwmon-sysfs.h>
25#include <linux/of.h>
26#include <linux/slab.h>
27
28#include <linux/jiffies.h>
29#include <linux/platform_device.h>
30#include <asm/opal.h>
31#include <linux/err.h>
32
33MODULE_DESCRIPTION("IBM PowerNV Platform power/temp/fan sensor hwmon module");
34MODULE_LICENSE("GPL");
35
36#define MAX_ATTR_LENGTH 32
37
38/* Device tree sensor name prefixes. The device tree has the names in the
39 * format "cooling-fan#2-faulted" where the "cooling-fan" is the sensor type,
40 * 2 is the sensor count, and "faulted" is the sensor data attribute type.
41 */
42#define DT_FAULT_ATTR_SUFFIX "faulted"
43#define DT_DATA_ATTR_SUFFIX "data"
44#define DT_THRESHOLD_ATTR_SUFFIX "thrs"
45
46enum sensors {
47 FAN,
48 TEMPERATURE,
49 POWERSUPPLY,
50 POWER,
51 MAX_SENSOR_TYPE,
52};
53
54enum attributes {
55 INPUT,
56 MINIMUM,
57 MAXIMUM,
58 FAULT,
59 MAX_ATTR_TYPES
60};
61
62static struct sensor_name {
63 char *name;
64 char *compaible;
65} sensor_names[] = {
66 {"fan-sensor", "ibm,opal-sensor-cooling-fan"},
67 {"amb-temp-sensor", "ibm,opal-sensor-amb-temp"},
68 {"power-sensor", "ibm,opal-sensor-power-supply"},
69 {"power", "ibm,opal-sensor-power"}
70};
71
72static const char * const attribute_type_table[] = {
73 "input",
74 "min",
75 "max",
76 "fault",
77 NULL
78};
79
80struct pdev_entry {
81 struct list_head list;
82 struct platform_device *pdev;
83 enum sensors type;
84};
85
86static LIST_HEAD(pdev_list);
87
88/* The sensors are categorised on type.
89 *
90 * The sensors of same type are categorised under a common platform device.
91 * So, The pdev is shared by all sensors of same type.
92 * Ex : temp1_input, temp1_max, temp2_input,temp2_max all share same platform
93 * device.
94 *
95 * "sensor_data" is the Platform device specific data.
96 * There is one hwmon_device instance for all the sensors of same type.
97 * This also holds the list of all sensors with same type but different
98 * attribute and index.
99 */
100struct sensor_specific_data {
101 u32 sensor_id; /* The hex value as in the device tree */
102 u32 sensor_index; /* The sensor instance index */
103 struct sensor_device_attribute sd_attr;
104 enum attributes attr_type;
105 char attr_name[64];
106};
107
108struct sensor_data {
109 struct device *hwmon_dev;
110 struct list_head sensor_list;
111 struct device_attribute name_attr;
112};
113
114struct sensor_entry {
115 struct list_head list;
116 struct sensor_specific_data *sensor_data;
117};
118
119static struct platform_device *powernv_sensor_get_pdev(enum sensors type)
120{
121 struct pdev_entry *p;
122 list_for_each_entry(p, &pdev_list, list)
123 if (p->type == type)
124 return p->pdev;
125
126 return NULL;
127}
128
129static struct sensor_specific_data *powernv_sensor_get_sensor_data(
130 struct sensor_data *pdata,
131 int index, enum attributes attr_type)
132{
133 struct sensor_entry *p;
134 list_for_each_entry(p, &pdata->sensor_list, list)
135 if ((p->sensor_data->sensor_index == index) &&
136 (attr_type == p->sensor_data->attr_type))
137 return p->sensor_data;
138
139 return NULL;
140}
141
142static ssize_t show_name(struct device *dev,
143 struct device_attribute *devattr, char *buf)
144{
145 struct platform_device *pdev = to_platform_device(dev);
146
147 return sprintf(buf, "%s\n", pdev->name);
148}
149
150/* Note: Data from the sensors for each sensor type needs to be converted to
151 * the dimension appropriate.
152 */
153static ssize_t show_sensor(struct device *dev,
154 struct device_attribute *devattr, char *buf)
155{
156 struct sensor_device_attribute *sd_attr = to_sensor_dev_attr(devattr);
157 struct platform_device *pdev = to_platform_device(dev);
158 struct sensor_data *pdata = platform_get_drvdata(pdev);
159 struct sensor_specific_data *tdata = NULL;
160 enum sensors sensor_type = pdev->id;
161 u32 x = -1;
162 int ret;
163
164 if (sd_attr && sd_attr->dev_attr.attr.name) {
165 char *pos = strchr(sd_attr->dev_attr.attr.name, '_');
166 int i;
167
168 for (i = 0; i < MAX_ATTR_TYPES; i++) {
169 if (strcmp(pos+1, attribute_type_table[i]) == 0) {
170 tdata = powernv_sensor_get_sensor_data(pdata,
171 sd_attr->index, i);
172 break;
173 }
174 }
175 }
176
177 if (tdata) {
178 ret = opal_get_sensor_data(tdata->sensor_id, &x);
179 if (ret)
180 x = -1;
181 }
182
183 if (sensor_type == TEMPERATURE && x > 0) {
184 /* Temperature comes in Degrees and convert it to
185 * milli-degrees.
186 */
187 x = x*1000;
188 } else if (sensor_type == POWER && x > 0) {
189 /* Power value comes in watts, convert to micro-watts */
190 x = x * 1000000;
191 }
192
193 return sprintf(buf, "%d\n", x);
194}
195
196static u32 get_sensor_index_from_name(const char *name)
197{
198 char *hash_position = strchr(name, '#');
199 u32 index = 0, copy_length;
200 char newbuf[8];
201
202 if (hash_position) {
203 copy_length = strchr(hash_position, '-') - hash_position - 1;
204 if (copy_length < sizeof(newbuf)) {
205 strncpy(newbuf, hash_position + 1, copy_length);
206 sscanf(newbuf, "%d", &index);
207 }
208 }
209
210 return index;
211}
212
213static inline void get_sensor_suffix_from_name(const char *name, char *suffix)
214{
215 char *dash_position = strrchr(name, '-');
216 if (dash_position)
217 strncpy(suffix, dash_position+1, MAX_ATTR_LENGTH);
218 else
219 strcpy(suffix,"");
220}
221
222static int get_sensor_attr_properties(const char *sensor_name,
223 enum sensors sensor_type, enum attributes *attr_type,
224 u32 *sensor_index)
225{
226 char suffix[MAX_ATTR_LENGTH];
227
228 *attr_type = MAX_ATTR_TYPES;
229 *sensor_index = get_sensor_index_from_name(sensor_name);
230 if (*sensor_index == 0)
231 return -EINVAL;
232
233 get_sensor_suffix_from_name(sensor_name, suffix);
234 if (strcmp(suffix, "") == 0)
235 return -EINVAL;
236
237 if (strcmp(suffix, DT_FAULT_ATTR_SUFFIX) == 0)
238 *attr_type = FAULT;
239 else if (strcmp(suffix, DT_DATA_ATTR_SUFFIX) == 0)
240 *attr_type = INPUT;
241 else if ((sensor_type == TEMPERATURE) &&
242 (strcmp(suffix, DT_THRESHOLD_ATTR_SUFFIX) == 0))
243 *attr_type = MAXIMUM;
244 else if ((sensor_type == FAN) &&
245 (strcmp(suffix, DT_THRESHOLD_ATTR_SUFFIX) == 0))
246 *attr_type = MINIMUM;
247 else
248 return -ENOENT;
249
250 if (((sensor_type == FAN) && ((*attr_type == INPUT) ||
251 (*attr_type == MINIMUM)))
252 || ((sensor_type == TEMPERATURE) && ((*attr_type == INPUT) ||
253 (*attr_type == MAXIMUM)))
254 || ((sensor_type == POWER) && ((*attr_type == INPUT))))
255 return 0;
256
257 return -ENOENT;
258}
259
260static int create_sensor_attr(struct sensor_specific_data *tdata,
261 struct device *dev, enum sensors sensor_type,
262 enum attributes attr_type)
263{
264 int err = 0;
265 char temp_file_prefix[50];
266 static const char *const file_name_format = "%s%d_%s";
267
268 tdata->attr_type = attr_type;
269
270 if (sensor_type == FAN)
271 strcpy(temp_file_prefix, "fan");
272 else if (sensor_type == TEMPERATURE)
273 strcpy(temp_file_prefix, "temp");
274 else if (sensor_type == POWERSUPPLY)
275 strcpy(temp_file_prefix, "powersupply");
276 else if (sensor_type == POWER)
277 strcpy(temp_file_prefix, "power");
278
279 snprintf(tdata->attr_name, sizeof(tdata->attr_name), file_name_format,
280 temp_file_prefix, tdata->sensor_index,
281 attribute_type_table[tdata->attr_type]);
282
283 sysfs_attr_init(&tdata->sd_attr.dev_attr.attr);
284 tdata->sd_attr.dev_attr.attr.name = tdata->attr_name;
285 tdata->sd_attr.dev_attr.attr.mode = S_IRUGO;
286 tdata->sd_attr.dev_attr.show = show_sensor;
287
288 tdata->sd_attr.index = tdata->sensor_index;
289 err = device_create_file(dev, &tdata->sd_attr.dev_attr);
290
291 return err;
292}
293
294static int create_name_attr(struct sensor_data *pdata,
295 struct device *dev)
296{
297 sysfs_attr_init(&pdata->name_attr.attr);
298 pdata->name_attr.attr.name = "name";
299 pdata->name_attr.attr.mode = S_IRUGO;
300 pdata->name_attr.show = show_name;
301 return device_create_file(dev, &pdata->name_attr);
302}
303
304static int create_platform_device(enum sensors sensor_type,
305 struct platform_device **pdev)
306{
307 struct pdev_entry *pdev_entry = NULL;
308 int err;
309
310 *pdev = platform_device_alloc(sensor_names[sensor_type].name,
311 sensor_type);
312 if (!*pdev) {
313 pr_err("Device allocation failed\n");
314 err = -ENOMEM;
315 goto exit;
316 }
317
318 pdev_entry = kzalloc(sizeof(struct pdev_entry), GFP_KERNEL);
319 if (!pdev_entry) {
320 pr_err("Device allocation failed\n");
321 err = -ENOMEM;
322 goto exit_device_put;
323 }
324
325 err = platform_device_add(*pdev);
326 if (err) {
327 pr_err("Device addition failed (%d)\n", err);
328 goto exit_device_free;
329 }
330
331 pdev_entry->pdev = *pdev;
332 pdev_entry->type = (*pdev)->id;
333
334 list_add_tail(&pdev_entry->list, &pdev_list);
335
336 return 0;
337exit_device_free:
338 kfree(pdev_entry);
339exit_device_put:
340 platform_device_put(*pdev);
341exit:
342 return err;
343}
344
345static int create_sensor_data(struct platform_device *pdev)
346{
347 struct sensor_data *pdata = NULL;
348 int err = 0;
349
350 pdata = kzalloc(sizeof(struct sensor_data), GFP_KERNEL);
351 if (!pdata) {
352 err = -ENOMEM;
353 goto exit;
354 }
355
356 err = create_name_attr(pdata, &pdev->dev);
357 if (err)
358 goto exit_free;
359
360 pdata->hwmon_dev = hwmon_device_register(&pdev->dev);
361 if (IS_ERR(pdata->hwmon_dev)) {
362 err = PTR_ERR(pdata->hwmon_dev);
363 dev_err(&pdev->dev, "Class registration failed (%d)\n",
364 err);
365 goto exit_name;
366 }
367
368 INIT_LIST_HEAD(&pdata->sensor_list);
369 platform_set_drvdata(pdev, pdata);
370
371 return 0;
372
373exit_name:
374 device_remove_file(&pdev->dev, &pdata->name_attr);
375exit_free:
376 kfree(pdata);
377exit:
378 return err;
379}
380
381static void delete_sensor_attr(struct sensor_data *pdata)
382{
383 struct sensor_entry *s, *l;
384
385 list_for_each_entry_safe(s, l, &pdata->sensor_list, list) {
386 struct sensor_specific_data *tdata = s->sensor_data;
387 kfree(tdata);
388 list_del(&s->list);
389 kfree(s);
390 }
391}
392
393static int powernv_sensor_init(u32 sensor_id, const struct device_node *np,
394 enum sensors sensor_type, enum attributes attr_type,
395 u32 sensor_index)
396{
397 struct platform_device *pdev = powernv_sensor_get_pdev(sensor_type);
398 struct sensor_specific_data *tdata;
399 struct sensor_entry *sensor_entry;
400 struct sensor_data *pdata;
401 int err = 0;
402
403 if (!pdev) {
404 err = create_platform_device(sensor_type, &pdev);
405 if (err)
406 goto exit;
407
408 err = create_sensor_data(pdev);
409 if (err)
410 goto exit;
411 }
412
413 pdata = platform_get_drvdata(pdev);
414 if (!pdata) {
415 err = -ENOMEM;
416 goto exit;
417 }
418
419 tdata = kzalloc(sizeof(struct sensor_specific_data), GFP_KERNEL);
420 if (!tdata) {
421 err = -ENOMEM;
422 goto exit;
423 }
424
425 tdata->sensor_id = sensor_id;
426 tdata->sensor_index = sensor_index;
427
428 err = create_sensor_attr(tdata, &pdev->dev, sensor_type, attr_type);
429 if (err)
430 goto exit_free;
431
432 sensor_entry = kzalloc(sizeof(struct sensor_entry), GFP_KERNEL);
433 if (!sensor_entry) {
434 err = -ENOMEM;
435 goto exit_attr;
436 }
437
438 sensor_entry->sensor_data = tdata;
439
440 list_add_tail(&sensor_entry->list, &pdata->sensor_list);
441
442 return 0;
443exit_attr:
444 device_remove_file(&pdev->dev, &tdata->sd_attr.dev_attr);
445exit_free:
446 kfree(tdata);
447exit:
448 return err;
449}
450
451static void delete_unregister_sensors(void)
452{
453 struct pdev_entry *p, *n;
454
455 list_for_each_entry_safe(p, n, &pdev_list, list) {
456 struct sensor_data *pdata = platform_get_drvdata(p->pdev);
457 if (pdata) {
458 delete_sensor_attr(pdata);
459
460 hwmon_device_unregister(pdata->hwmon_dev);
461 kfree(pdata);
462 }
463 platform_device_unregister(p->pdev);
464 list_del(&p->list);
465 kfree(p);
466 }
467}
468
469static int __init powernv_hwmon_init(void)
470{
471 struct device_node *opal, *np = NULL;
472 enum attributes attr_type;
473 enum sensors type;
474 const u32 *sensor_id;
475 u32 sensor_index;
476 int err;
477
478 opal = of_find_node_by_path("/ibm,opal/sensors");
479 if (!opal) {
480 pr_err("%s: Opal 'sensors' node not found\n", __func__);
481 return -ENXIO;
482 }
483
484 for_each_child_of_node(opal, np) {
485 if (np->name == NULL)
486 continue;
487
488 for (type = 0; type < MAX_SENSOR_TYPE; type++)
489 if (of_device_is_compatible(np,
490 sensor_names[type].compaible))
491 break;
492
493 if (type == MAX_SENSOR_TYPE)
494 continue;
495
496 if (get_sensor_attr_properties(np->name, type, &attr_type,
497 &sensor_index))
498 continue;
499
500 sensor_id = of_get_property(np, "sensor-id", NULL);
501 if (!sensor_id) {
502 pr_info("%s: %s doesn't have sensor-id\n", __func__,
503 np->name);
504 continue;
505 }
506
507 err = powernv_sensor_init(*sensor_id, np, type, attr_type,
508 sensor_index);
509 if (err) {
510 of_node_put(opal);
511 goto exit;
512 }
513 }
514 of_node_put(opal);
515
516 return 0;
517exit:
518 delete_unregister_sensors();
519 return err;
520
521}
522
523static void powernv_hwmon_exit(void)
524{
525 delete_unregister_sensors();
526}
527
528module_init(powernv_hwmon_init);
529module_exit(powernv_hwmon_exit);
diff --git a/drivers/tty/hvc/hvc_opal.c b/drivers/tty/hvc/hvc_opal.c
index b01659bd4f7c..a585079b4b38 100644
--- a/drivers/tty/hvc/hvc_opal.c
+++ b/drivers/tty/hvc/hvc_opal.c
@@ -61,6 +61,7 @@ static struct hvc_opal_priv *hvc_opal_privs[MAX_NR_HVC_CONSOLES];
61/* For early boot console */ 61/* For early boot console */
62static struct hvc_opal_priv hvc_opal_boot_priv; 62static struct hvc_opal_priv hvc_opal_boot_priv;
63static u32 hvc_opal_boot_termno; 63static u32 hvc_opal_boot_termno;
64static bool hvc_opal_event_registered;
64 65
65static const struct hv_ops hvc_opal_raw_ops = { 66static const struct hv_ops hvc_opal_raw_ops = {
66 .get_chars = opal_get_chars, 67 .get_chars = opal_get_chars,
@@ -161,6 +162,18 @@ static const struct hv_ops hvc_opal_hvsi_ops = {
161 .tiocmset = hvc_opal_hvsi_tiocmset, 162 .tiocmset = hvc_opal_hvsi_tiocmset,
162}; 163};
163 164
165static int hvc_opal_console_event(struct notifier_block *nb,
166 unsigned long events, void *change)
167{
168 if (events & OPAL_EVENT_CONSOLE_INPUT)
169 hvc_kick();
170 return 0;
171}
172
173static struct notifier_block hvc_opal_console_nb = {
174 .notifier_call = hvc_opal_console_event,
175};
176
164static int hvc_opal_probe(struct platform_device *dev) 177static int hvc_opal_probe(struct platform_device *dev)
165{ 178{
166 const struct hv_ops *ops; 179 const struct hv_ops *ops;
@@ -170,6 +183,7 @@ static int hvc_opal_probe(struct platform_device *dev)
170 unsigned int termno, boot = 0; 183 unsigned int termno, boot = 0;
171 const __be32 *reg; 184 const __be32 *reg;
172 185
186
173 if (of_device_is_compatible(dev->dev.of_node, "ibm,opal-console-raw")) { 187 if (of_device_is_compatible(dev->dev.of_node, "ibm,opal-console-raw")) {
174 proto = HV_PROTOCOL_RAW; 188 proto = HV_PROTOCOL_RAW;
175 ops = &hvc_opal_raw_ops; 189 ops = &hvc_opal_raw_ops;
@@ -213,12 +227,18 @@ static int hvc_opal_probe(struct platform_device *dev)
213 dev->dev.of_node->full_name, 227 dev->dev.of_node->full_name,
214 boot ? " (boot console)" : ""); 228 boot ? " (boot console)" : "");
215 229
216 /* We don't do IRQ yet */ 230 /* We don't do IRQ ... */
217 hp = hvc_alloc(termno, 0, ops, MAX_VIO_PUT_CHARS); 231 hp = hvc_alloc(termno, 0, ops, MAX_VIO_PUT_CHARS);
218 if (IS_ERR(hp)) 232 if (IS_ERR(hp))
219 return PTR_ERR(hp); 233 return PTR_ERR(hp);
220 dev_set_drvdata(&dev->dev, hp); 234 dev_set_drvdata(&dev->dev, hp);
221 235
236 /* ... but we use OPAL event to kick the console */
237 if (!hvc_opal_event_registered) {
238 opal_notifier_register(&hvc_opal_console_nb);
239 hvc_opal_event_registered = true;
240 }
241
222 return 0; 242 return 0;
223} 243}
224 244
generated by cgit v1.2.2 (git 2.25.0) at 2025-12-26 13:41:30 -0500