beq 9f
cmpwi cr3,r13,2
-
- /*
- * Check if last bit of HSPGR0 is set. This indicates whether we are
- * waking up from winkle.
- */
GET_PACA(r13)
- clrldi r5,r13,63
- clrrdi r13,r13,1
- cmpwi cr4,r5,1
- mtspr SPRN_HSPRG0,r13
+ bl pnv_restore_hyp_resource
- lbz r0,PACA_THREAD_IDLE_STATE(r13)
- cmpwi cr2,r0,PNV_THREAD_NAP
- bgt cr2,8f /* Either sleep or Winkle */
-
- /* Waking up from nap should not cause hypervisor state loss */
- bgt cr3,.
-
- /* Waking up from nap */
li r0,PNV_THREAD_RUNNING
stb r0,PACA_THREAD_IDLE_STATE(r13) /* Clear thread state */
/* Return SRR1 from power7_nap() */
mfspr r3,SPRN_SRR1
- beq cr3,2f
- b power7_wakeup_noloss
-2: b power7_wakeup_loss
-
- /* Fast Sleep wakeup on PowerNV */
-8: GET_PACA(r13)
- b power7_wakeup_tb_loss
+ blt cr3,2f
+ b pnv_wakeup_loss
+2: b pnv_wakeup_noloss
9:
END_FTR_SECTION_IFSET(CPU_FTR_HVMODE | CPU_FTR_ARCH_206)
* vector
*/
SET_SCRATCH0(r13) /* save r13 */
-#ifdef CONFIG_PPC_P7_NAP
-BEGIN_FTR_SECTION
- /* Running native on arch 2.06 or later, check if we are
- * waking up from nap. We only handle no state loss and
- * supervisor state loss. We do -not- handle hypervisor
- * state loss at this time.
+ /*
+ * Running native on arch 2.06 or later, we may wakeup from winkle
+ * inside machine check. If yes, then last bit of HSPGR0 would be set
+ * to 1. Hence clear it unconditionally.
*/
- mfspr r13,SPRN_SRR1
- rlwinm. r13,r13,47-31,30,31
- OPT_GET_SPR(r13, SPRN_CFAR, CPU_FTR_CFAR)
- beq 9f
-
- mfspr r13,SPRN_SRR1
- rlwinm. r13,r13,47-31,30,31
- /* waking up from powersave (nap) state */
- cmpwi cr1,r13,2
- /* Total loss of HV state is fatal. let's just stay stuck here */
- OPT_GET_SPR(r13, SPRN_CFAR, CPU_FTR_CFAR)
- bgt cr1,.
-9:
- OPT_SET_SPR(r13, SPRN_CFAR, CPU_FTR_CFAR)
-END_FTR_SECTION_IFSET(CPU_FTR_HVMODE | CPU_FTR_ARCH_206)
-#endif /* CONFIG_PPC_P7_NAP */
+ GET_PACA(r13)
+ clrrdi r13,r13,1
+ SET_PACA(r13)
EXCEPTION_PROLOG_0(PACA_EXMC)
BEGIN_FTR_SECTION
b machine_check_powernv_early
EXCEPTION_PROLOG_0(PACA_EXGEN)
b h_doorbell_hv
+ . = 0xea0
+hv_virt_irq_trampoline:
+ SET_SCRATCH0(r13)
+ EXCEPTION_PROLOG_0(PACA_EXGEN)
+ b h_virt_irq_hv
+
/* We need to deal with the Altivec unavailable exception
* here which is at 0xf20, thus in the middle of the
* prolog code of the PerformanceMonitor one. A little
MASKABLE_EXCEPTION_HV_OOL(0xe82, h_doorbell)
KVM_HANDLER(PACA_EXGEN, EXC_HV, 0xe82)
+ MASKABLE_EXCEPTION_HV_OOL(0xea2, h_virt_irq)
+ KVM_HANDLER(PACA_EXGEN, EXC_HV, 0xea2)
+
/* moved from 0xf00 */
STD_EXCEPTION_PSERIES_OOL(0xf00, performance_monitor)
KVM_HANDLER(PACA_EXGEN, EXC_STD, 0xf00)
BEGIN_FTR_SECTION
cmpwi r3,0xe80
beq h_doorbell_common
+ cmpwi r3,0xea0
+ beq h_virt_irq_common
+ cmpwi r3,0xe60
+ beq hmi_exception_common
FTR_SECTION_ELSE
cmpwi r3,0xa00
beq doorbell_super_common
#else
STD_EXCEPTION_COMMON_ASYNC(0xe80, h_doorbell, unknown_exception)
#endif
+ STD_EXCEPTION_COMMON_ASYNC(0xea0, h_virt_irq, do_IRQ)
STD_EXCEPTION_COMMON_ASYNC(0xf00, performance_monitor, performance_monitor_exception)
STD_EXCEPTION_COMMON(0x1300, instruction_breakpoint, instruction_breakpoint_exception)
STD_EXCEPTION_COMMON(0x1502, denorm, unknown_exception)
#else
STD_EXCEPTION_COMMON(0x1700, altivec_assist, unknown_exception)
#endif
-#ifdef CONFIG_CBE_RAS
- STD_EXCEPTION_COMMON(0x1200, cbe_system_error, cbe_system_error_exception)
- STD_EXCEPTION_COMMON(0x1600, cbe_maintenance, cbe_maintenance_exception)
- STD_EXCEPTION_COMMON(0x1800, cbe_thermal, cbe_thermal_exception)
-#endif /* CONFIG_CBE_RAS */
/*
* Relocation-on interrupts: A subset of the interrupts can be delivered
EXCEPTION_PROLOG_0(PACA_EXGEN)
b h_doorbell_relon_hv
+ . = 0x4ea0
+h_virt_irq_relon_trampoline:
+ SET_SCRATCH0(r13)
+ EXCEPTION_PROLOG_0(PACA_EXGEN)
+ b h_virt_irq_relon_hv
+
. = 0x4f00
performance_monitor_relon_pseries_trampoline:
SET_SCRATCH0(r13)
b do_hash_page /* Try to handle as hpte fault */
MMU_FTR_SECTION_ELSE
b handle_page_fault
-ALT_MMU_FTR_SECTION_END_IFCLR(MMU_FTR_RADIX)
+ALT_MMU_FTR_SECTION_END_IFCLR(MMU_FTR_TYPE_RADIX)
.align 7
.globl h_data_storage_common
b do_hash_page /* Try to handle as hpte fault */
MMU_FTR_SECTION_ELSE
b handle_page_fault
-ALT_MMU_FTR_SECTION_END_IFCLR(MMU_FTR_RADIX)
+ALT_MMU_FTR_SECTION_END_IFCLR(MMU_FTR_TYPE_RADIX)
STD_EXCEPTION_COMMON(0xe20, h_instr_storage, unknown_exception)
bl vsx_unavailable_exception
b ret_from_except
- STD_EXCEPTION_COMMON(0xf60, facility_unavailable, facility_unavailable_exception)
- STD_EXCEPTION_COMMON(0xf80, hv_facility_unavailable, facility_unavailable_exception)
-
/* Equivalents to the above handlers for relocation-on interrupt vectors */
STD_RELON_EXCEPTION_HV_OOL(0xe40, emulation_assist)
MASKABLE_RELON_EXCEPTION_HV_OOL(0xe80, h_doorbell)
+ MASKABLE_RELON_EXCEPTION_HV_OOL(0xea0, h_virt_irq)
STD_RELON_EXCEPTION_PSERIES_OOL(0xf00, performance_monitor)
STD_RELON_EXCEPTION_PSERIES_OOL(0xf20, altivec_unavailable)
. = 0x8000
#endif /* defined(CONFIG_PPC_PSERIES) || defined(CONFIG_PPC_POWERNV) */
+ STD_EXCEPTION_COMMON(0xf60, facility_unavailable, facility_unavailable_exception)
+ STD_EXCEPTION_COMMON(0xf80, hv_facility_unavailable, facility_unavailable_exception)
+
+#ifdef CONFIG_CBE_RAS
+ STD_EXCEPTION_COMMON(0x1200, cbe_system_error, cbe_system_error_exception)
+ STD_EXCEPTION_COMMON(0x1600, cbe_maintenance, cbe_maintenance_exception)
+ STD_EXCEPTION_COMMON(0x1800, cbe_thermal, cbe_thermal_exception)
+#endif /* CONFIG_CBE_RAS */
+
.globl hmi_exception_early
hmi_exception_early:
- EXCEPTION_PROLOG_1(PACA_EXGEN, NOTEST, 0xe60)
+ EXCEPTION_PROLOG_1(PACA_EXGEN, KVMTEST, 0xe62)
mr r10,r1 /* Save r1 */
ld r1,PACAEMERGSP(r13) /* Use emergency stack */
subi r1,r1,INT_FRAME_SIZE /* alloc stack frame */
* Check if thread was in power saving mode. We come here when any
* of the following is true:
* a. thread wasn't in power saving mode
- * b. thread was in power saving mode with no state loss or
- * supervisor state loss
+ * b. thread was in power saving mode with no state loss,
+ * supervisor state loss or hypervisor state loss.
*
- * Go back to nap again if (b) is true.
+ * Go back to nap/sleep/winkle mode again if (b) is true.
*/
rlwinm. r11,r12,47-31,30,31 /* Was it in power saving mode? */
beq 4f /* No, it wasn;t */
/* Thread was in power saving mode. Go back to nap again. */
cmpwi r11,2
- bne 3f
- /* Supervisor state loss */
+ blt 3f
+ /* Supervisor/Hypervisor state loss */
li r0,1
stb r0,PACA_NAPSTATELOST(r13)
3: bl machine_check_queue_event
MACHINE_CHECK_HANDLER_WINDUP
GET_PACA(r13)
ld r1,PACAR1(r13)
- li r3,PNV_THREAD_NAP
- b power7_enter_nap_mode
+ /*
+ * Check what idle state this CPU was in and go back to same mode
+ * again.
+ */
+ lbz r3,PACA_THREAD_IDLE_STATE(r13)
+ cmpwi r3,PNV_THREAD_NAP
+ bgt 10f
+ IDLE_STATE_ENTER_SEQ(PPC_NAP)
+ /* No return */
+10:
+ cmpwi r3,PNV_THREAD_SLEEP
+ bgt 2f
+ IDLE_STATE_ENTER_SEQ(PPC_SLEEP)
+ /* No return */
+
+2:
+ /*
+ * Go back to winkle. Please note that this thread was woken up in
+ * machine check from winkle and have not restored the per-subcore
+ * state. Hence before going back to winkle, set last bit of HSPGR0
+ * to 1. This will make sure that if this thread gets woken up
+ * again at reset vector 0x100 then it will get chance to restore
+ * the subcore state.
+ */
+ ori r13,r13,1
+ SET_PACA(r13)
+ IDLE_STATE_ENTER_SEQ(PPC_WINKLE)
+ /* No return */
4:
#endif
/*
#ifdef CONFIG_PPC_STD_MMU_64
BEGIN_MMU_FTR_SECTION
bl slb_allocate_realmode
-END_MMU_FTR_SECTION_IFCLR(MMU_FTR_RADIX)
+END_MMU_FTR_SECTION_IFCLR(MMU_FTR_TYPE_RADIX)
#endif
/* All done -- return from exception. */
beq- 2f
FTR_SECTION_ELSE
b 2f
-ALT_MMU_FTR_SECTION_END_IFCLR(MMU_FTR_RADIX)
+ALT_MMU_FTR_SECTION_END_IFCLR(MMU_FTR_TYPE_RADIX)
.machine push
.machine "power4"
projects / cascardo / linux.git / blobdiff