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authorAnton Arapov <anton@redhat.com>2012-08-07 11:21:50 +0200
committerAnton Arapov <anton@redhat.com>2012-08-07 12:52:25 +0200
commit1d44b6f3fcf6058fb7c960b7558766967e8028f7 (patch)
tree53d88547c973ba048d233091a3f91f3173ad01df /arch/powerpc/kernel/head_fsl_booke.S
parentd91eda5d7b0383e6a0c83e0146ff141ff3b1355b (diff)
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fedora kernel: 222b075b3ff0d9e88aa9353e3c80667756ed7361v3.5.0-4
Signed-off-by: Anton Arapov <anton@redhat.com>
Diffstat (limited to 'arch/powerpc/kernel/head_fsl_booke.S')
-rw-r--r--arch/powerpc/kernel/head_fsl_booke.S106
1 files changed, 78 insertions, 28 deletions
diff --git a/arch/powerpc/kernel/head_fsl_booke.S b/arch/powerpc/kernel/head_fsl_booke.S
index 28e62598d0e..1f4434a3860 100644
--- a/arch/powerpc/kernel/head_fsl_booke.S
+++ b/arch/powerpc/kernel/head_fsl_booke.S
@@ -301,19 +301,20 @@ _ENTRY(__early_start)
interrupt_base:
/* Critical Input Interrupt */
- CRITICAL_EXCEPTION(0x0100, CriticalInput, unknown_exception)
+ CRITICAL_EXCEPTION(0x0100, CRITICAL, CriticalInput, unknown_exception)
/* Machine Check Interrupt */
#ifdef CONFIG_E200
/* no RFMCI, MCSRRs on E200 */
- CRITICAL_EXCEPTION(0x0200, MachineCheck, machine_check_exception)
+ CRITICAL_EXCEPTION(0x0200, MACHINE_CHECK, MachineCheck, \
+ machine_check_exception)
#else
MCHECK_EXCEPTION(0x0200, MachineCheck, machine_check_exception)
#endif
/* Data Storage Interrupt */
START_EXCEPTION(DataStorage)
- NORMAL_EXCEPTION_PROLOG
+ NORMAL_EXCEPTION_PROLOG(DATA_STORAGE)
mfspr r5,SPRN_ESR /* Grab the ESR, save it, pass arg3 */
stw r5,_ESR(r11)
mfspr r4,SPRN_DEAR /* Grab the DEAR, save it, pass arg2 */
@@ -328,7 +329,7 @@ interrupt_base:
INSTRUCTION_STORAGE_EXCEPTION
/* External Input Interrupt */
- EXCEPTION(0x0500, ExternalInput, do_IRQ, EXC_XFER_LITE)
+ EXCEPTION(0x0500, EXTERNAL, ExternalInput, do_IRQ, EXC_XFER_LITE)
/* Alignment Interrupt */
ALIGNMENT_EXCEPTION
@@ -342,32 +343,36 @@ interrupt_base:
#else
#ifdef CONFIG_E200
/* E200 treats 'normal' floating point instructions as FP Unavail exception */
- EXCEPTION(0x0800, FloatingPointUnavailable, program_check_exception, EXC_XFER_EE)
+ EXCEPTION(0x0800, FP_UNAVAIL, FloatingPointUnavailable, \
+ program_check_exception, EXC_XFER_EE)
#else
- EXCEPTION(0x0800, FloatingPointUnavailable, unknown_exception, EXC_XFER_EE)
+ EXCEPTION(0x0800, FP_UNAVAIL, FloatingPointUnavailable, \
+ unknown_exception, EXC_XFER_EE)
#endif
#endif
/* System Call Interrupt */
START_EXCEPTION(SystemCall)
- NORMAL_EXCEPTION_PROLOG
+ NORMAL_EXCEPTION_PROLOG(SYSCALL)
EXC_XFER_EE_LITE(0x0c00, DoSyscall)
/* Auxiliary Processor Unavailable Interrupt */
- EXCEPTION(0x2900, AuxillaryProcessorUnavailable, unknown_exception, EXC_XFER_EE)
+ EXCEPTION(0x2900, AP_UNAVAIL, AuxillaryProcessorUnavailable, \
+ unknown_exception, EXC_XFER_EE)
/* Decrementer Interrupt */
DECREMENTER_EXCEPTION
/* Fixed Internal Timer Interrupt */
/* TODO: Add FIT support */
- EXCEPTION(0x3100, FixedIntervalTimer, unknown_exception, EXC_XFER_EE)
+ EXCEPTION(0x3100, FIT, FixedIntervalTimer, \
+ unknown_exception, EXC_XFER_EE)
/* Watchdog Timer Interrupt */
#ifdef CONFIG_BOOKE_WDT
- CRITICAL_EXCEPTION(0x3200, WatchdogTimer, WatchdogException)
+ CRITICAL_EXCEPTION(0x3200, WATCHDOG, WatchdogTimer, WatchdogException)
#else
- CRITICAL_EXCEPTION(0x3200, WatchdogTimer, unknown_exception)
+ CRITICAL_EXCEPTION(0x3200, WATCHDOG, WatchdogTimer, unknown_exception)
#endif
/* Data TLB Error Interrupt */
@@ -375,10 +380,16 @@ interrupt_base:
mtspr SPRN_SPRG_WSCRATCH0, r10 /* Save some working registers */
mfspr r10, SPRN_SPRG_THREAD
stw r11, THREAD_NORMSAVE(0)(r10)
+#ifdef CONFIG_KVM_BOOKE_HV
+BEGIN_FTR_SECTION
+ mfspr r11, SPRN_SRR1
+END_FTR_SECTION_IFSET(CPU_FTR_EMB_HV)
+#endif
stw r12, THREAD_NORMSAVE(1)(r10)
stw r13, THREAD_NORMSAVE(2)(r10)
mfcr r13
stw r13, THREAD_NORMSAVE(3)(r10)
+ DO_KVM BOOKE_INTERRUPT_DTLB_MISS SPRN_SRR1
mfspr r10, SPRN_DEAR /* Get faulting address */
/* If we are faulting a kernel address, we have to use the
@@ -463,10 +474,16 @@ interrupt_base:
mtspr SPRN_SPRG_WSCRATCH0, r10 /* Save some working registers */
mfspr r10, SPRN_SPRG_THREAD
stw r11, THREAD_NORMSAVE(0)(r10)
+#ifdef CONFIG_KVM_BOOKE_HV
+BEGIN_FTR_SECTION
+ mfspr r11, SPRN_SRR1
+END_FTR_SECTION_IFSET(CPU_FTR_EMB_HV)
+#endif
stw r12, THREAD_NORMSAVE(1)(r10)
stw r13, THREAD_NORMSAVE(2)(r10)
mfcr r13
stw r13, THREAD_NORMSAVE(3)(r10)
+ DO_KVM BOOKE_INTERRUPT_ITLB_MISS SPRN_SRR1
mfspr r10, SPRN_SRR0 /* Get faulting address */
/* If we are faulting a kernel address, we have to use the
@@ -538,36 +555,54 @@ interrupt_base:
#ifdef CONFIG_SPE
/* SPE Unavailable */
START_EXCEPTION(SPEUnavailable)
- NORMAL_EXCEPTION_PROLOG
+ NORMAL_EXCEPTION_PROLOG(SPE_UNAVAIL)
bne load_up_spe
addi r3,r1,STACK_FRAME_OVERHEAD
EXC_XFER_EE_LITE(0x2010, KernelSPE)
#else
- EXCEPTION(0x2020, SPEUnavailable, unknown_exception, EXC_XFER_EE)
+ EXCEPTION(0x2020, SPE_UNAVAIL, SPEUnavailable, \
+ unknown_exception, EXC_XFER_EE)
#endif /* CONFIG_SPE */
/* SPE Floating Point Data */
#ifdef CONFIG_SPE
- EXCEPTION(0x2030, SPEFloatingPointData, SPEFloatingPointException, EXC_XFER_EE);
+ EXCEPTION(0x2030, SPE_FP_DATA, SPEFloatingPointData, \
+ SPEFloatingPointException, EXC_XFER_EE);
/* SPE Floating Point Round */
- EXCEPTION(0x2050, SPEFloatingPointRound, SPEFloatingPointRoundException, EXC_XFER_EE)
+ EXCEPTION(0x2050, SPE_FP_ROUND, SPEFloatingPointRound, \
+ SPEFloatingPointRoundException, EXC_XFER_EE)
#else
- EXCEPTION(0x2040, SPEFloatingPointData, unknown_exception, EXC_XFER_EE)
- EXCEPTION(0x2050, SPEFloatingPointRound, unknown_exception, EXC_XFER_EE)
+ EXCEPTION(0x2040, SPE_FP_DATA, SPEFloatingPointData, \
+ unknown_exception, EXC_XFER_EE)
+ EXCEPTION(0x2050, SPE_FP_ROUND, SPEFloatingPointRound, \
+ unknown_exception, EXC_XFER_EE)
#endif /* CONFIG_SPE */
/* Performance Monitor */
- EXCEPTION(0x2060, PerformanceMonitor, performance_monitor_exception, EXC_XFER_STD)
+ EXCEPTION(0x2060, PERFORMANCE_MONITOR, PerformanceMonitor, \
+ performance_monitor_exception, EXC_XFER_STD)
- EXCEPTION(0x2070, Doorbell, doorbell_exception, EXC_XFER_STD)
+ EXCEPTION(0x2070, DOORBELL, Doorbell, doorbell_exception, EXC_XFER_STD)
- CRITICAL_EXCEPTION(0x2080, CriticalDoorbell, unknown_exception)
+ CRITICAL_EXCEPTION(0x2080, DOORBELL_CRITICAL, \
+ CriticalDoorbell, unknown_exception)
/* Debug Interrupt */
DEBUG_DEBUG_EXCEPTION
DEBUG_CRIT_EXCEPTION
+ GUEST_DOORBELL_EXCEPTION
+
+ CRITICAL_EXCEPTION(0, GUEST_DBELL_CRIT, CriticalGuestDoorbell, \
+ unknown_exception)
+
+ /* Hypercall */
+ EXCEPTION(0, HV_SYSCALL, Hypercall, unknown_exception, EXC_XFER_EE)
+
+ /* Embedded Hypervisor Privilege */
+ EXCEPTION(0, HV_PRIV, Ehvpriv, unknown_exception, EXC_XFER_EE)
+
/*
* Local functions
*/
@@ -871,16 +906,31 @@ _GLOBAL(__setup_e500mc_ivors)
mtspr SPRN_IVOR36,r3
li r3,CriticalDoorbell@l
mtspr SPRN_IVOR37,r3
- sync
- blr
-/*
- * extern void giveup_altivec(struct task_struct *prev)
- *
- * The e500 core does not have an AltiVec unit.
- */
-_GLOBAL(giveup_altivec)
+ /*
+ * We only want to touch IVOR38-41 if we're running on hardware
+ * that supports category E.HV. The architectural way to determine
+ * this is MMUCFG[LPIDSIZE].
+ */
+ mfspr r3, SPRN_MMUCFG
+ andis. r3, r3, MMUCFG_LPIDSIZE@h
+ beq no_hv
+ li r3,GuestDoorbell@l
+ mtspr SPRN_IVOR38,r3
+ li r3,CriticalGuestDoorbell@l
+ mtspr SPRN_IVOR39,r3
+ li r3,Hypercall@l
+ mtspr SPRN_IVOR40,r3
+ li r3,Ehvpriv@l
+ mtspr SPRN_IVOR41,r3
+skip_hv_ivors:
+ sync
blr
+no_hv:
+ lwz r3, CPU_SPEC_FEATURES(r5)
+ rlwinm r3, r3, 0, ~CPU_FTR_EMB_HV
+ stw r3, CPU_SPEC_FEATURES(r5)
+ b skip_hv_ivors
#ifdef CONFIG_SPE
/*