diff options
| author | Scott Wood <scottwood@freescale.com> | 2011-05-09 16:26:00 -0500 |
|---|---|---|
| committer | Kumar Gala <galak@kernel.crashing.org> | 2011-05-19 00:36:43 -0500 |
| commit | 3a6e9bd7f60b29efc205485ceb11a768032c40d4 (patch) | |
| tree | 4e54010c5fc5636d985e146fc0fccb9372d41502 /arch/powerpc/kernel | |
| parent | d36b4c4f3cc6caae6d4a12d9f995513e4c3acdd5 (diff) | |
powerpc/e5500: set non-base IVORs
Without this, we attempt to use doorbells for IPIs, and end up
branching to some bad address. Plus, even for the exceptions
we don't implement, it's good to handle it and get a message out.
Signed-off-by: Scott Wood <scottwood@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Diffstat (limited to 'arch/powerpc/kernel')
| -rw-r--r-- | arch/powerpc/kernel/cpu_setup_fsl_booke.S | 3 | ||||
| -rw-r--r-- | arch/powerpc/kernel/exceptions-64e.S | 47 |
2 files changed, 50 insertions, 0 deletions
diff --git a/arch/powerpc/kernel/cpu_setup_fsl_booke.S b/arch/powerpc/kernel/cpu_setup_fsl_booke.S index 913611105c1f..8053db02b85e 100644 --- a/arch/powerpc/kernel/cpu_setup_fsl_booke.S +++ b/arch/powerpc/kernel/cpu_setup_fsl_booke.S @@ -88,6 +88,9 @@ _GLOBAL(__setup_cpu_e5500) bl __e500_dcache_setup #ifdef CONFIG_PPC_BOOK3E_64 bl .__setup_base_ivors + bl .setup_perfmon_ivor + bl .setup_doorbell_ivors + bl .setup_ehv_ivors #else bl __setup_e500mc_ivors #endif diff --git a/arch/powerpc/kernel/exceptions-64e.S b/arch/powerpc/kernel/exceptions-64e.S index cf27a8fa0d29..d24d4400cc79 100644 --- a/arch/powerpc/kernel/exceptions-64e.S +++ b/arch/powerpc/kernel/exceptions-64e.S @@ -269,8 +269,13 @@ interrupt_base_book3e: /* fake trap */ EXCEPTION_STUB(0x1a0, watchdog) /* 0x09f0 */ EXCEPTION_STUB(0x1c0, data_tlb_miss) EXCEPTION_STUB(0x1e0, instruction_tlb_miss) + EXCEPTION_STUB(0x260, perfmon) EXCEPTION_STUB(0x280, doorbell) EXCEPTION_STUB(0x2a0, doorbell_crit) + EXCEPTION_STUB(0x2c0, guest_doorbell) + EXCEPTION_STUB(0x2e0, guest_doorbell_crit) + EXCEPTION_STUB(0x300, hypercall) + EXCEPTION_STUB(0x320, ehpriv) .globl interrupt_end_book3e interrupt_end_book3e: @@ -514,6 +519,8 @@ kernel_dbg_exc: bl .DebugException b .ret_from_except + MASKABLE_EXCEPTION(0x260, perfmon, .performance_monitor_exception, ACK_NONE) + /* Doorbell interrupt */ MASKABLE_EXCEPTION(0x2070, doorbell, .doorbell_exception, ACK_NONE) @@ -528,6 +535,11 @@ kernel_dbg_exc: // b ret_from_crit_except b . + MASKABLE_EXCEPTION(0x2c0, guest_doorbell, .unknown_exception, ACK_NONE) + MASKABLE_EXCEPTION(0x2e0, guest_doorbell_crit, .unknown_exception, ACK_NONE) + MASKABLE_EXCEPTION(0x310, hypercall, .unknown_exception, ACK_NONE) + MASKABLE_EXCEPTION(0x320, ehpriv, .unknown_exception, ACK_NONE) + /* * An interrupt came in while soft-disabled; clear EE in SRR1, @@ -647,7 +659,12 @@ fast_exception_return: BAD_STACK_TRAMPOLINE(0x000) BAD_STACK_TRAMPOLINE(0x100) BAD_STACK_TRAMPOLINE(0x200) +BAD_STACK_TRAMPOLINE(0x260) +BAD_STACK_TRAMPOLINE(0x2c0) +BAD_STACK_TRAMPOLINE(0x2e0) BAD_STACK_TRAMPOLINE(0x300) +BAD_STACK_TRAMPOLINE(0x310) +BAD_STACK_TRAMPOLINE(0x320) BAD_STACK_TRAMPOLINE(0x400) BAD_STACK_TRAMPOLINE(0x500) BAD_STACK_TRAMPOLINE(0x600) @@ -1183,3 +1200,33 @@ _GLOBAL(__setup_base_ivors) sync blr + +_GLOBAL(setup_perfmon_ivor) + SET_IVOR(35, 0x260) /* Performance Monitor */ + blr + +_GLOBAL(setup_doorbell_ivors) + SET_IVOR(36, 0x280) /* Processor Doorbell */ + SET_IVOR(37, 0x2a0) /* Processor Doorbell Crit */ + + /* Check MMUCFG[LPIDSIZE] to determine if we have category E.HV */ + mfspr r10,SPRN_MMUCFG + rlwinm. r10,r10,0,MMUCFG_LPIDSIZE + beqlr + + SET_IVOR(38, 0x2c0) /* Guest Processor Doorbell */ + SET_IVOR(39, 0x2e0) /* Guest Processor Doorbell Crit/MC */ + blr + +_GLOBAL(setup_ehv_ivors) + /* + * We may be running as a guest and lack E.HV even on a chip + * that normally has it. + */ + mfspr r10,SPRN_MMUCFG + rlwinm. r10,r10,0,MMUCFG_LPIDSIZE + beqlr + + SET_IVOR(40, 0x300) /* Embedded Hypervisor System Call */ + SET_IVOR(41, 0x320) /* Embedded Hypervisor Privilege */ + blr |