ivt.S
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- /*
- * arch/ia64/kernel/ivt.S
- *
- * Copyright (C) 1998-2001 Hewlett-Packard Co
- * Stephane Eranian <eranian@hpl.hp.com>
- * David Mosberger <davidm@hpl.hp.com>
- *
- * 00/08/23 Asit Mallick <asit.k.mallick@intel.com> TLB handling for SMP
- * 00/12/20 David Mosberger-Tang <davidm@hpl.hp.com> DTLB/ITLB handler now uses virtual PT.
- */
- /*
- * This file defines the interruption vector table used by the CPU.
- * It does not include one entry per possible cause of interruption.
- *
- * The first 20 entries of the table contain 64 bundles each while the
- * remaining 48 entries contain only 16 bundles each.
- *
- * The 64 bundles are used to allow inlining the whole handler for critical
- * interruptions like TLB misses.
- *
- * For each entry, the comment is as follows:
- *
- * // 0x1c00 Entry 7 (size 64 bundles) Data Key Miss (12,51)
- * entry offset ----/ / / / /
- * entry number ---------/ / / /
- * size of the entry -------------/ / /
- * vector name -------------------------------------/ /
- * interruptions triggering this vector ----------------------/
- *
- * The table is 32KB in size and must be aligned on 32KB boundary.
- * (The CPU ignores the 15 lower bits of the address)
- *
- * Table is based upon EAS2.6 (Oct 1999)
- */
- #include <linux/config.h>
- #include <asm/asmmacro.h>
- #include <asm/break.h>
- #include <asm/kregs.h>
- #include <asm/offsets.h>
- #include <asm/pgtable.h>
- #include <asm/processor.h>
- #include <asm/ptrace.h>
- #include <asm/system.h>
- #include <asm/unistd.h>
- #if 1
- # define PSR_DEFAULT_BITS psr.ac
- #else
- # define PSR_DEFAULT_BITS 0
- #endif
- #if 0
- /*
- * This lets you track the last eight faults that occurred on the CPU. Make sure ar.k2 isn't
- * needed for something else before enabling this...
- */
- # define DBG_FAULT(i) mov r16=ar.k2;; shl r16=r16,8;; add r16=(i),r16;;mov ar.k2=r16
- #else
- # define DBG_FAULT(i)
- #endif
- #define MINSTATE_VIRT /* needed by minstate.h */
- #include "minstate.h"
- #define FAULT(n)
- mov r31=pr;
- mov r19=n;; /* prepare to save predicates */
- br.sptk.many dispatch_to_fault_handler
- /*
- * As we don't (hopefully) use the space available, we need to fill it with
- * nops. the parameter may be used for debugging and is representing the entry
- * number
- */
- #define BREAK_BUNDLE(a) break.m (a);
- break.i (a);
- break.i (a)
- /*
- * 4 breaks bundles all together
- */
- #define BREAK_BUNDLE4(a); BREAK_BUNDLE(a); BREAK_BUNDLE(a); BREAK_BUNDLE(a); BREAK_BUNDLE(a)
- /*
- * 8 bundles all together (too lazy to use only 4 at a time !)
- */
- #define BREAK_BUNDLE8(a); BREAK_BUNDLE4(a); BREAK_BUNDLE4(a)
- .section .text.ivt,"ax"
- .align 32768 // align on 32KB boundary
- .global ia64_ivt
- ia64_ivt:
- /////////////////////////////////////////////////////////////////////////////////////////
- // 0x0000 Entry 0 (size 64 bundles) VHPT Translation (8,20,47)
- ENTRY(vhpt_miss)
- DBG_FAULT(0)
- /*
- * The VHPT vector is invoked when the TLB entry for the virtual page table
- * is missing. This happens only as a result of a previous
- * (the "original") TLB miss, which may either be caused by an instruction
- * fetch or a data access (or non-access).
- *
- * What we do here is normal TLB miss handing for the _original_ miss, followed
- * by inserting the TLB entry for the virtual page table page that the VHPT
- * walker was attempting to access. The latter gets inserted as long
- * as both L1 and L2 have valid mappings for the faulting address.
- * The TLB entry for the original miss gets inserted only if
- * the L3 entry indicates that the page is present.
- *
- * do_page_fault gets invoked in the following cases:
- * - the faulting virtual address uses unimplemented address bits
- * - the faulting virtual address has no L1, L2, or L3 mapping
- */
- mov r16=cr.ifa // get address that caused the TLB miss
- ;;
- rsm psr.dt // use physical addressing for data
- mov r31=pr // save the predicate registers
- mov r19=IA64_KR(PT_BASE) // get page table base address
- shl r21=r16,3 // shift bit 60 into sign bit
- shr.u r17=r16,61 // get the region number into r17
- ;;
- cmp.eq p6,p7=5,r17 // is IFA pointing into to region 5?
- shr.u r18=r16,PGDIR_SHIFT // get bits 33-63 of the faulting address
- ;;
- (p7) dep r17=r17,r19,(PAGE_SHIFT-3),3 // put region number bits in place
- srlz.d // ensure "rsm psr.dt" has taken effect
- (p6) movl r19=__pa(SWAPPER_PGD_ADDR) // region 5 is rooted at swapper_pg_dir
- (p6) shr.u r21=r21,PGDIR_SHIFT+PAGE_SHIFT
- (p7) shr.u r21=r21,PGDIR_SHIFT+PAGE_SHIFT-3
- ;;
- (p6) dep r17=r18,r19,3,(PAGE_SHIFT-3) // r17=PTA + IFA(33,42)*8
- (p7) dep r17=r18,r17,3,(PAGE_SHIFT-6) // r17=PTA + (((IFA(61,63) << 7) | IFA(33,39))*8)
- cmp.eq p7,p6=0,r21 // unused address bits all zeroes?
- shr.u r18=r16,PMD_SHIFT // shift L2 index into position
- ;;
- ld8 r17=[r17] // fetch the L1 entry (may be 0)
- ;;
- (p7) cmp.eq p6,p7=r17,r0 // was L1 entry NULL?
- dep r17=r18,r17,3,(PAGE_SHIFT-3) // compute address of L2 page table entry
- ;;
- (p7) ld8 r20=[r17] // fetch the L2 entry (may be 0)
- shr.u r19=r16,PAGE_SHIFT // shift L3 index into position
- ;;
- (p7) cmp.eq.or.andcm p6,p7=r20,r0 // was L2 entry NULL?
- dep r21=r19,r20,3,(PAGE_SHIFT-3) // compute address of L3 page table entry
- ;;
- (p7) ld8 r18=[r21] // read the L3 PTE
- mov r19=cr.isr // cr.isr bit 0 tells us if this is an insn miss
- ;;
- (p7) tbit.z p6,p7=r18,_PAGE_P_BIT // page present bit cleared?
- mov r22=cr.iha // get the VHPT address that caused the TLB miss
- ;; // avoid RAW on p7
- (p7) tbit.nz.unc p10,p11=r19,32 // is it an instruction TLB miss?
- dep r23=0,r20,0,PAGE_SHIFT // clear low bits to get page address
- ;;
- (p10) itc.i r18 // insert the instruction TLB entry
- (p11) itc.d r18 // insert the data TLB entry
- (p6) br.cond.spnt.many page_fault // handle bad address/page not present (page fault)
- mov cr.ifa=r22
- /*
- * Now compute and insert the TLB entry for the virtual page table. We never
- * execute in a page table page so there is no need to set the exception deferral
- * bit.
- */
- adds r24=__DIRTY_BITS_NO_ED|_PAGE_PL_0|_PAGE_AR_RW,r23
- ;;
- (p7) itc.d r24
- ;;
- #ifdef CONFIG_SMP
- /*
- * Re-check L2 and L3 pagetable. If they changed, we may have received a ptc.g
- * between reading the pagetable and the "itc". If so, flush the entry we
- * inserted and retry.
- */
- ld8 r25=[r21] // read L3 PTE again
- ld8 r26=[r17] // read L2 entry again
- ;;
- cmp.ne p6,p7=r26,r20 // did L2 entry change
- mov r27=PAGE_SHIFT<<2
- ;;
- (p6) ptc.l r22,r27 // purge PTE page translation
- (p7) cmp.ne.or.andcm p6,p7=r25,r18 // did L3 PTE change
- ;;
- (p6) ptc.l r16,r27 // purge translation
- #endif
- mov pr=r31,-1 // restore predicate registers
- rfi
- END(vhpt_miss)
- .align 1024
- /////////////////////////////////////////////////////////////////////////////////////////
- // 0x0400 Entry 1 (size 64 bundles) ITLB (21)
- ENTRY(itlb_miss)
- DBG_FAULT(1)
- /*
- * The ITLB handler accesses the L3 PTE via the virtually mapped linear
- * page table. If a nested TLB miss occurs, we switch into physical
- * mode, walk the page table, and then re-execute the L3 PTE read
- * and go on normally after that.
- */
- mov r16=cr.ifa // get virtual address
- mov r29=b0 // save b0
- mov r31=pr // save predicates
- itlb_fault:
- mov r17=cr.iha // get virtual address of L3 PTE
- movl r30=1f // load nested fault continuation point
- ;;
- 1: ld8 r18=[r17] // read L3 PTE
- ;;
- mov b0=r29
- tbit.z p6,p0=r18,_PAGE_P_BIT // page present bit cleared?
- (p6) br.cond.spnt page_fault
- ;;
- itc.i r18
- ;;
- #ifdef CONFIG_SMP
- ld8 r19=[r17] // read L3 PTE again and see if same
- mov r20=PAGE_SHIFT<<2 // setup page size for purge
- ;;
- cmp.ne p7,p0=r18,r19
- ;;
- (p7) ptc.l r16,r20
- #endif
- mov pr=r31,-1
- rfi
- END(itlb_miss)
- .align 1024
- /////////////////////////////////////////////////////////////////////////////////////////
- // 0x0800 Entry 2 (size 64 bundles) DTLB (9,48)
- ENTRY(dtlb_miss)
- DBG_FAULT(2)
- /*
- * The DTLB handler accesses the L3 PTE via the virtually mapped linear
- * page table. If a nested TLB miss occurs, we switch into physical
- * mode, walk the page table, and then re-execute the L3 PTE read
- * and go on normally after that.
- */
- mov r16=cr.ifa // get virtual address
- mov r29=b0 // save b0
- mov r31=pr // save predicates
- dtlb_fault:
- mov r17=cr.iha // get virtual address of L3 PTE
- movl r30=1f // load nested fault continuation point
- ;;
- 1: ld8 r18=[r17] // read L3 PTE
- ;;
- mov b0=r29
- tbit.z p6,p0=r18,_PAGE_P_BIT // page present bit cleared?
- (p6) br.cond.spnt page_fault
- ;;
- itc.d r18
- ;;
- #ifdef CONFIG_SMP
- ld8 r19=[r17] // read L3 PTE again and see if same
- mov r20=PAGE_SHIFT<<2 // setup page size for purge
- ;;
- cmp.ne p7,p0=r18,r19
- ;;
- (p7) ptc.l r16,r20
- #endif
- mov pr=r31,-1
- rfi
- END(dtlb_miss)
- .align 1024
- /////////////////////////////////////////////////////////////////////////////////////////
- // 0x0c00 Entry 3 (size 64 bundles) Alt ITLB (19)
- ENTRY(alt_itlb_miss)
- DBG_FAULT(3)
- mov r16=cr.ifa // get address that caused the TLB miss
- movl r17=PAGE_KERNEL
- mov r21=cr.ipsr
- mov r31=pr
- ;;
- #ifdef CONFIG_DISABLE_VHPT
- shr.u r22=r16,61 // get the region number into r21
- ;;
- cmp.gt p8,p0=6,r22 // user mode
- ;;
- (p8) thash r17=r16
- ;;
- (p8) mov cr.iha=r17
- (p8) mov r29=b0 // save b0
- (p8) br.cond.dptk itlb_fault
- #endif
- extr.u r23=r21,IA64_PSR_CPL0_BIT,2 // extract psr.cpl
- shr.u r18=r16,57 // move address bit 61 to bit 4
- dep r19=0,r16,IA64_MAX_PHYS_BITS,(64-IA64_MAX_PHYS_BITS) // clear ed & reserved bits
- ;;
- andcm r18=0x10,r18 // bit 4=~address-bit(61)
- cmp.ne p8,p0=r0,r23 // psr.cpl != 0?
- dep r19=r17,r19,0,12 // insert PTE control bits into r19
- ;;
- or r19=r19,r18 // set bit 4 (uncached) if the access was to region 6
- (p8) br.cond.spnt page_fault
- ;;
- itc.i r19 // insert the TLB entry
- mov pr=r31,-1
- rfi
- END(alt_itlb_miss)
- .align 1024
- /////////////////////////////////////////////////////////////////////////////////////////
- // 0x1000 Entry 4 (size 64 bundles) Alt DTLB (7,46)
- ENTRY(alt_dtlb_miss)
- DBG_FAULT(4)
- mov r16=cr.ifa // get address that caused the TLB miss
- movl r17=PAGE_KERNEL
- mov r20=cr.isr
- mov r21=cr.ipsr
- mov r31=pr
- ;;
- #ifdef CONFIG_DISABLE_VHPT
- shr.u r22=r16,61 // get the region number into r21
- ;;
- cmp.gt p8,p0=6,r22 // access to region 0-5
- ;;
- (p8) thash r17=r16
- ;;
- (p8) mov cr.iha=r17
- (p8) mov r29=b0 // save b0
- (p8) br.cond.dptk dtlb_fault
- #endif
- extr.u r23=r21,IA64_PSR_CPL0_BIT,2 // extract psr.cpl
- tbit.nz p6,p7=r20,IA64_ISR_SP_BIT // is speculation bit on?
- shr.u r18=r16,57 // move address bit 61 to bit 4
- dep r19=0,r16,IA64_MAX_PHYS_BITS,(64-IA64_MAX_PHYS_BITS) // clear ed & reserved bits
- ;;
- andcm r18=0x10,r18 // bit 4=~address-bit(61)
- cmp.ne p8,p0=r0,r23
- (p8) br.cond.spnt page_fault
- dep r21=-1,r21,IA64_PSR_ED_BIT,1
- dep r19=r17,r19,0,12 // insert PTE control bits into r19
- ;;
- or r19=r19,r18 // set bit 4 (uncached) if the access was to region 6
- (p6) mov cr.ipsr=r21
- ;;
- (p7) itc.d r19 // insert the TLB entry
- mov pr=r31,-1
- rfi
- END(alt_dtlb_miss)
- //-----------------------------------------------------------------------------------
- // call do_page_fault (predicates are in r31, psr.dt may be off, r16 is faulting address)
- ENTRY(page_fault)
- ssm psr.dt
- ;;
- srlz.i
- ;;
- SAVE_MIN_WITH_COVER
- alloc r15=ar.pfs,0,0,3,0
- mov out0=cr.ifa
- mov out1=cr.isr
- adds r3=8,r2 // set up second base pointer
- ;;
- ssm psr.ic | PSR_DEFAULT_BITS
- ;;
- srlz.i // guarantee that interruption collectin is on
- ;;
- (p15) ssm psr.i // restore psr.i
- movl r14=ia64_leave_kernel
- ;;
- SAVE_REST
- mov rp=r14
- ;;
- adds out2=16,r12 // out2 = pointer to pt_regs
- br.call.sptk.many b6=ia64_do_page_fault // ignore return address
- END(page_fault)
- .align 1024
- /////////////////////////////////////////////////////////////////////////////////////////
- // 0x1400 Entry 5 (size 64 bundles) Data nested TLB (6,45)
- ENTRY(nested_dtlb_miss)
- /*
- * In the absence of kernel bugs, we get here when the virtually mapped linear
- * page table is accessed non-speculatively (e.g., in the Dirty-bit, Instruction
- * Access-bit, or Data Access-bit faults). If the DTLB entry for the virtual page
- * table is missing, a nested TLB miss fault is triggered and control is
- * transferred to this point. When this happens, we lookup the pte for the
- * faulting address by walking the page table in physical mode and return to the
- * continuation point passed in register r30 (or call page_fault if the address is
- * not mapped).
- *
- * Input: r16: faulting address
- * r29: saved b0
- * r30: continuation address
- * r31: saved pr
- *
- * Output: r17: physical address of L3 PTE of faulting address
- * r29: saved b0
- * r30: continuation address
- * r31: saved pr
- *
- * Clobbered: b0, r18, r19, r21, psr.dt (cleared)
- */
- rsm psr.dt // switch to using physical data addressing
- mov r19=IA64_KR(PT_BASE) // get the page table base address
- shl r21=r16,3 // shift bit 60 into sign bit
- ;;
- shr.u r17=r16,61 // get the region number into r17
- ;;
- cmp.eq p6,p7=5,r17 // is faulting address in region 5?
- shr.u r18=r16,PGDIR_SHIFT // get bits 33-63 of faulting address
- ;;
- (p7) dep r17=r17,r19,(PAGE_SHIFT-3),3 // put region number bits in place
- srlz.d
- (p6) movl r19=__pa(SWAPPER_PGD_ADDR) // region 5 is rooted at swapper_pg_dir
- (p6) shr.u r21=r21,PGDIR_SHIFT+PAGE_SHIFT
- (p7) shr.u r21=r21,PGDIR_SHIFT+PAGE_SHIFT-3
- ;;
- (p6) dep r17=r18,r19,3,(PAGE_SHIFT-3) // r17=PTA + IFA(33,42)*8
- (p7) dep r17=r18,r17,3,(PAGE_SHIFT-6) // r17=PTA + (((IFA(61,63) << 7) | IFA(33,39))*8)
- cmp.eq p7,p6=0,r21 // unused address bits all zeroes?
- shr.u r18=r16,PMD_SHIFT // shift L2 index into position
- ;;
- ld8 r17=[r17] // fetch the L1 entry (may be 0)
- ;;
- (p7) cmp.eq p6,p7=r17,r0 // was L1 entry NULL?
- dep r17=r18,r17,3,(PAGE_SHIFT-3) // compute address of L2 page table entry
- ;;
- (p7) ld8 r17=[r17] // fetch the L2 entry (may be 0)
- shr.u r19=r16,PAGE_SHIFT // shift L3 index into position
- ;;
- (p7) cmp.eq.or.andcm p6,p7=r17,r0 // was L2 entry NULL?
- dep r17=r19,r17,3,(PAGE_SHIFT-3) // compute address of L3 page table entry
- (p6) br.cond.spnt page_fault
- mov b0=r30
- br.sptk.many b0 // return to continuation point
- END(nested_dtlb_miss)
- .align 1024
- /////////////////////////////////////////////////////////////////////////////////////////
- // 0x1800 Entry 6 (size 64 bundles) Instruction Key Miss (24)
- ENTRY(ikey_miss)
- DBG_FAULT(6)
- FAULT(6)
- END(ikey_miss)
- .align 1024
- /////////////////////////////////////////////////////////////////////////////////////////
- // 0x1c00 Entry 7 (size 64 bundles) Data Key Miss (12,51)
- ENTRY(dkey_miss)
- DBG_FAULT(7)
- FAULT(7)
- END(dkey_miss)
- .align 1024
- /////////////////////////////////////////////////////////////////////////////////////////
- // 0x2000 Entry 8 (size 64 bundles) Dirty-bit (54)
- ENTRY(dirty_bit)
- DBG_FAULT(8)
- /*
- * What we do here is to simply turn on the dirty bit in the PTE. We need to
- * update both the page-table and the TLB entry. To efficiently access the PTE,
- * we address it through the virtual page table. Most likely, the TLB entry for
- * the relevant virtual page table page is still present in the TLB so we can
- * normally do this without additional TLB misses. In case the necessary virtual
- * page table TLB entry isn't present, we take a nested TLB miss hit where we look
- * up the physical address of the L3 PTE and then continue at label 1 below.
- */
- mov r16=cr.ifa // get the address that caused the fault
- movl r30=1f // load continuation point in case of nested fault
- ;;
- thash r17=r16 // compute virtual address of L3 PTE
- mov r29=b0 // save b0 in case of nested fault
- mov r31=pr // save pr
- #ifdef CONFIG_SMP
- mov r28=ar.ccv // save ar.ccv
- ;;
- 1: ld8 r18=[r17]
- ;; // avoid RAW on r18
- mov ar.ccv=r18 // set compare value for cmpxchg
- or r25=_PAGE_D|_PAGE_A,r18 // set the dirty and accessed bits
- ;;
- cmpxchg8.acq r26=[r17],r25,ar.ccv
- mov r24=PAGE_SHIFT<<2
- ;;
- cmp.eq p6,p7=r26,r18
- ;;
- (p6) itc.d r25 // install updated PTE
- ;;
- ld8 r18=[r17] // read PTE again
- ;;
- cmp.eq p6,p7=r18,r25 // is it same as the newly installed
- ;;
- (p7) ptc.l r16,r24
- mov b0=r29 // restore b0
- mov ar.ccv=r28
- #else
- ;;
- 1: ld8 r18=[r17]
- ;; // avoid RAW on r18
- or r18=_PAGE_D|_PAGE_A,r18 // set the dirty and accessed bits
- mov b0=r29 // restore b0
- ;;
- st8 [r17]=r18 // store back updated PTE
- itc.d r18 // install updated PTE
- #endif
- mov pr=r31,-1 // restore pr
- rfi
- END(idirty_bit)
- .align 1024
- /////////////////////////////////////////////////////////////////////////////////////////
- // 0x2400 Entry 9 (size 64 bundles) Instruction Access-bit (27)
- ENTRY(iaccess_bit)
- DBG_FAULT(9)
- // Like Entry 8, except for instruction access
- mov r16=cr.ifa // get the address that caused the fault
- movl r30=1f // load continuation point in case of nested fault
- mov r31=pr // save predicates
- #ifdef CONFIG_ITANIUM
- /*
- * Erratum 10 (IFA may contain incorrect address) has "NoFix" status.
- */
- mov r17=cr.ipsr
- ;;
- mov r18=cr.iip
- tbit.z p6,p0=r17,IA64_PSR_IS_BIT // IA64 instruction set?
- ;;
- (p6) mov r16=r18 // if so, use cr.iip instead of cr.ifa
- #endif /* CONFIG_ITANIUM */
- ;;
- thash r17=r16 // compute virtual address of L3 PTE
- mov r29=b0 // save b0 in case of nested fault)
- #ifdef CONFIG_SMP
- mov r28=ar.ccv // save ar.ccv
- ;;
- 1: ld8 r18=[r17]
- ;;
- mov ar.ccv=r18 // set compare value for cmpxchg
- or r25=_PAGE_A,r18 // set the accessed bit
- ;;
- cmpxchg8.acq r26=[r17],r25,ar.ccv
- mov r24=PAGE_SHIFT<<2
- ;;
- cmp.eq p6,p7=r26,r18
- ;;
- (p6) itc.i r25 // install updated PTE
- ;;
- ld8 r18=[r17] // read PTE again
- ;;
- cmp.eq p6,p7=r18,r25 // is it same as the newly installed
- ;;
- (p7) ptc.l r16,r24
- mov b0=r29 // restore b0
- mov ar.ccv=r28
- #else /* !CONFIG_SMP */
- ;;
- 1: ld8 r18=[r17]
- ;;
- or r18=_PAGE_A,r18 // set the accessed bit
- mov b0=r29 // restore b0
- ;;
- st8 [r17]=r18 // store back updated PTE
- itc.i r18 // install updated PTE
- #endif /* !CONFIG_SMP */
- mov pr=r31,-1
- rfi
- END(iaccess_bit)
- .align 1024
- /////////////////////////////////////////////////////////////////////////////////////////
- // 0x2800 Entry 10 (size 64 bundles) Data Access-bit (15,55)
- ENTRY(daccess_bit)
- DBG_FAULT(10)
- // Like Entry 8, except for data access
- mov r16=cr.ifa // get the address that caused the fault
- movl r30=1f // load continuation point in case of nested fault
- ;;
- thash r17=r16 // compute virtual address of L3 PTE
- mov r31=pr
- mov r29=b0 // save b0 in case of nested fault)
- #ifdef CONFIG_SMP
- mov r28=ar.ccv // save ar.ccv
- ;;
- 1: ld8 r18=[r17]
- ;; // avoid RAW on r18
- mov ar.ccv=r18 // set compare value for cmpxchg
- or r25=_PAGE_A,r18 // set the dirty bit
- ;;
- cmpxchg8.acq r26=[r17],r25,ar.ccv
- mov r24=PAGE_SHIFT<<2
- ;;
- cmp.eq p6,p7=r26,r18
- ;;
- (p6) itc.d r25 // install updated PTE
- ;;
- ld8 r18=[r17] // read PTE again
- ;;
- cmp.eq p6,p7=r18,r25 // is it same as the newly installed
- ;;
- (p7) ptc.l r16,r24
- mov ar.ccv=r28
- #else
- ;;
- 1: ld8 r18=[r17]
- ;; // avoid RAW on r18
- or r18=_PAGE_A,r18 // set the accessed bit
- ;;
- st8 [r17]=r18 // store back updated PTE
- itc.d r18 // install updated PTE
- #endif
- mov b0=r29 // restore b0
- mov pr=r31,-1
- rfi
- END(daccess_bit)
- .align 1024
- /////////////////////////////////////////////////////////////////////////////////////////
- // 0x2c00 Entry 11 (size 64 bundles) Break instruction (33)
- ENTRY(break_fault)
- DBG_FAULT(11)
- mov r16=cr.iim
- mov r17=__IA64_BREAK_SYSCALL
- mov r31=pr // prepare to save predicates
- ;;
- cmp.eq p0,p7=r16,r17 // is this a system call? (p7 <- false, if so)
- (p7) br.cond.spnt non_syscall
- SAVE_MIN // uses r31; defines r2:
- ssm psr.ic | PSR_DEFAULT_BITS
- ;;
- srlz.i // guarantee that interruption collection is on
- cmp.eq pSys,pNonSys=r0,r0 // set pSys=1, pNonSys=0
- ;;
- (p15) ssm psr.i // restore psr.i
- adds r8=(IA64_PT_REGS_R8_OFFSET-IA64_PT_REGS_R16_OFFSET),r2
- ;;
- stf8 [r8]=f1 // ensure pt_regs.r8 != 0 (see handle_syscall_error)
- adds r3=8,r2 // set up second base pointer for SAVE_REST
- ;;
- SAVE_REST
- br.call.sptk.many rp=demine_args // clear NaT bits in (potential) syscall args
- mov r3=255
- adds r15=-1024,r15 // r15 contains the syscall number---subtract 1024
- adds r2=IA64_TASK_PTRACE_OFFSET,r13 // r2 = ¤t->ptrace
- ;;
- cmp.geu p6,p7=r3,r15 // (syscall > 0 && syscall <= 1024+255) ?
- movl r16=sys_call_table
- ;;
- (p6) shladd r16=r15,3,r16
- movl r15=ia64_ret_from_syscall
- (p7) adds r16=(__NR_ni_syscall-1024)*8,r16 // force __NR_ni_syscall
- ;;
- ld8 r16=[r16] // load address of syscall entry point
- mov rp=r15 // set the real return addr
- ;;
- ld8 r2=[r2] // r2 = current->ptrace
- mov b6=r16
- // arrange things so we skip over break instruction when returning:
- adds r16=16,sp // get pointer to cr_ipsr
- adds r17=24,sp // get pointer to cr_iip
- ;;
- ld8 r18=[r16] // fetch cr_ipsr
- tbit.z p8,p0=r2,PT_TRACESYS_BIT // (current->ptrace & PF_TRACESYS) == 0?
- ;;
- ld8 r19=[r17] // fetch cr_iip
- extr.u r20=r18,41,2 // extract ei field
- ;;
- cmp.eq p6,p7=2,r20 // isr.ei==2?
- adds r19=16,r19 // compute address of next bundle
- ;;
- (p6) mov r20=0 // clear ei to 0
- (p7) adds r20=1,r20 // increment ei to next slot
- ;;
- (p6) st8 [r17]=r19 // store new cr.iip if cr.isr.ei wrapped around
- dep r18=r20,r18,41,2 // insert new ei into cr.isr
- ;;
- st8 [r16]=r18 // store new value for cr.isr
- (p8) br.call.sptk.many b6=b6 // ignore this return addr
- br.cond.sptk ia64_trace_syscall
- // NOT REACHED
- END(break_fault)
- ENTRY(demine_args)
- alloc r2=ar.pfs,8,0,0,0
- tnat.nz p8,p0=in0
- tnat.nz p9,p0=in1
- ;;
- (p8) mov in0=-1
- tnat.nz p10,p0=in2
- tnat.nz p11,p0=in3
- (p9) mov in1=-1
- tnat.nz p12,p0=in4
- tnat.nz p13,p0=in5
- ;;
- (p10) mov in2=-1
- tnat.nz p14,p0=in6
- tnat.nz p15,p0=in7
- (p11) mov in3=-1
- tnat.nz p8,p0=r15 // demining r15 is not a must, but it is safer
- (p12) mov in4=-1
- (p13) mov in5=-1
- ;;
- (p14) mov in6=-1
- (p15) mov in7=-1
- (p8) mov r15=-1
- br.ret.sptk.many rp
- END(demine_args)
- .align 1024
- /////////////////////////////////////////////////////////////////////////////////////////
- // 0x3000 Entry 12 (size 64 bundles) External Interrupt (4)
- ENTRY(interrupt)
- DBG_FAULT(12)
- mov r31=pr // prepare to save predicates
- ;;
- SAVE_MIN_WITH_COVER // uses r31; defines r2 and r3
- ssm psr.ic | PSR_DEFAULT_BITS
- ;;
- adds r3=8,r2 // set up second base pointer for SAVE_REST
- srlz.i // ensure everybody knows psr.ic is back on
- ;;
- SAVE_REST
- ;;
- alloc r14=ar.pfs,0,0,2,0 // must be first in an insn group
- mov out0=cr.ivr // pass cr.ivr as first arg
- add out1=16,sp // pass pointer to pt_regs as second arg
- ;;
- srlz.d // make sure we see the effect of cr.ivr
- movl r14=ia64_leave_kernel
- ;;
- mov rp=r14
- br.call.sptk.many b6=ia64_handle_irq
- END(interrupt)
- .align 1024
- /////////////////////////////////////////////////////////////////////////////////////////
- // 0x3400 Entry 13 (size 64 bundles) Reserved
- DBG_FAULT(13)
- FAULT(13)
- .align 1024
- /////////////////////////////////////////////////////////////////////////////////////////
- // 0x3800 Entry 14 (size 64 bundles) Reserved
- DBG_FAULT(14)
- FAULT(14)
- .align 1024
- /////////////////////////////////////////////////////////////////////////////////////////
- // 0x3c00 Entry 15 (size 64 bundles) Reserved
- DBG_FAULT(15)
- FAULT(15)
- /*
- * Squatting in this space ...
- *
- * This special case dispatcher for illegal operation faults allows preserved
- * registers to be modified through a callback function (asm only) that is handed
- * back from the fault handler in r8. Up to three arguments can be passed to the
- * callback function by returning an aggregate with the callback as its first
- * element, followed by the arguments.
- */
- ENTRY(dispatch_illegal_op_fault)
- SAVE_MIN_WITH_COVER
- ssm psr.ic | PSR_DEFAULT_BITS
- ;;
- srlz.i // guarantee that interruption collection is on
- ;;
- (p15) ssm psr.i // restore psr.i
- adds r3=8,r2 // set up second base pointer for SAVE_REST
- ;;
- alloc r14=ar.pfs,0,0,1,0 // must be first in insn group
- mov out0=ar.ec
- ;;
- SAVE_REST
- ;;
- br.call.sptk.many rp=ia64_illegal_op_fault
- .ret0: ;;
- alloc r14=ar.pfs,0,0,3,0 // must be first in insn group
- mov out0=r9
- mov out1=r10
- mov out2=r11
- movl r15=ia64_leave_kernel
- ;;
- mov rp=r15
- mov b6=r8
- ;;
- cmp.ne p6,p0=0,r8
- (p6) br.call.dpnt.many b6=b6 // call returns to ia64_leave_kernel
- br.sptk.many ia64_leave_kernel
- END(dispatch_illegal_op_fault)
- .align 1024
- /////////////////////////////////////////////////////////////////////////////////////////
- // 0x4000 Entry 16 (size 64 bundles) Reserved
- DBG_FAULT(16)
- FAULT(16)
- #ifdef CONFIG_IA32_SUPPORT
- /*
- * There is no particular reason for this code to be here, other than that
- * there happens to be space here that would go unused otherwise. If this
- * fault ever gets "unreserved", simply moved the following code to a more
- * suitable spot...
- */
- // IA32 interrupt entry point
- ENTRY(dispatch_to_ia32_handler)
- SAVE_MIN
- ;;
- mov r14=cr.isr
- ssm psr.ic | PSR_DEFAULT_BITS
- ;;
- srlz.i // guarantee that interruption collection is on
- ;;
- (p15) ssm psr.i
- adds r3=8,r2 // Base pointer for SAVE_REST
- ;;
- SAVE_REST
- ;;
- mov r15=0x80
- shr r14=r14,16 // Get interrupt number
- ;;
- cmp.ne p6,p0=r14,r15
- (p6) br.call.dpnt.many b6=non_ia32_syscall
- adds r14=IA64_PT_REGS_R8_OFFSET + 16,sp // 16 byte hole per SW conventions
- adds r15=IA64_PT_REGS_R1_OFFSET + 16,sp
- ;;
- cmp.eq pSys,pNonSys=r0,r0 // set pSys=1, pNonSys=0
- st8 [r15]=r8 // save original EAX in r1 (IA32 procs don't use the GP)
- ;;
- alloc r15=ar.pfs,0,0,6,0 // must first in an insn group
- ;;
- ld4 r8=[r14],8 // r8 == eax (syscall number)
- mov r15=230 // number of entries in ia32 system call table
- ;;
- cmp.ltu.unc p6,p7=r8,r15
- ld4 out1=[r14],8 // r9 == ecx
- ;;
- ld4 out2=[r14],8 // r10 == edx
- ;;
- ld4 out0=[r14] // r11 == ebx
- adds r14=(IA64_PT_REGS_R8_OFFSET-(8*3)) + 16,sp
- ;;
- ld4 out5=[r14],8 // r13 == ebp
- ;;
- ld4 out3=[r14],8 // r14 == esi
- adds r2=IA64_TASK_PTRACE_OFFSET,r13 // r2 = ¤t->ptrace
- ;;
- ld4 out4=[r14] // r15 == edi
- movl r16=ia32_syscall_table
- ;;
- (p6) shladd r16=r8,3,r16 // force ni_syscall if not valid syscall number
- ld8 r2=[r2] // r2 = current->ptrace
- ;;
- ld8 r16=[r16]
- tbit.z p8,p0=r2,PT_TRACESYS_BIT // (current->ptrace & PT_TRACESYS) == 0?
- ;;
- mov b6=r16
- movl r15=ia32_ret_from_syscall
- ;;
- mov rp=r15
- (p8) br.call.sptk.many b6=b6
- br.cond.sptk ia32_trace_syscall
- non_ia32_syscall:
- alloc r15=ar.pfs,0,0,2,0
- mov out0=r14 // interrupt #
- add out1=16,sp // pointer to pt_regs
- ;; // avoid WAW on CFM
- br.call.sptk.many rp=ia32_bad_interrupt
- .ret1: movl r15=ia64_leave_kernel
- ;;
- mov rp=r15
- br.ret.sptk.many rp
- END(dispatch_to_ia32_handler)
- #endif /* CONFIG_IA32_SUPPORT */
- .align 1024
- /////////////////////////////////////////////////////////////////////////////////////////
- // 0x4400 Entry 17 (size 64 bundles) Reserved
- DBG_FAULT(17)
- FAULT(17)
- ENTRY(non_syscall)
- SAVE_MIN_WITH_COVER
- // There is no particular reason for this code to be here, other than that
- // there happens to be space here that would go unused otherwise. If this
- // fault ever gets "unreserved", simply moved the following code to a more
- // suitable spot...
- alloc r14=ar.pfs,0,0,2,0
- mov out0=cr.iim
- add out1=16,sp
- adds r3=8,r2 // set up second base pointer for SAVE_REST
- ssm psr.ic | PSR_DEFAULT_BITS
- ;;
- srlz.i // guarantee that interruption collection is on
- ;;
- (p15) ssm psr.i // restore psr.i
- movl r15=ia64_leave_kernel
- ;;
- SAVE_REST
- mov rp=r15
- ;;
- br.call.sptk.many b6=ia64_bad_break // avoid WAW on CFM and ignore return addr
- END(non_syscall)
- .align 1024
- /////////////////////////////////////////////////////////////////////////////////////////
- // 0x4800 Entry 18 (size 64 bundles) Reserved
- DBG_FAULT(18)
- FAULT(18)
- /*
- * There is no particular reason for this code to be here, other than that
- * there happens to be space here that would go unused otherwise. If this
- * fault ever gets "unreserved", simply moved the following code to a more
- * suitable spot...
- */
- ENTRY(dispatch_unaligned_handler)
- SAVE_MIN_WITH_COVER
- ;;
- alloc r14=ar.pfs,0,0,2,0 // now it's safe (must be first in insn group!)
- mov out0=cr.ifa
- adds out1=16,sp
- ssm psr.ic | PSR_DEFAULT_BITS
- ;;
- srlz.i // guarantee that interruption collection is on
- ;;
- (p15) ssm psr.i // restore psr.i
- adds r3=8,r2 // set up second base pointer
- ;;
- SAVE_REST
- movl r14=ia64_leave_kernel
- ;;
- mov rp=r14
- br.sptk.many ia64_prepare_handle_unaligned
- END(dispatch_unaligned_handler)
- .align 1024
- /////////////////////////////////////////////////////////////////////////////////////////
- // 0x4c00 Entry 19 (size 64 bundles) Reserved
- DBG_FAULT(19)
- FAULT(19)
- /*
- * There is no particular reason for this code to be here, other than that
- * there happens to be space here that would go unused otherwise. If this
- * fault ever gets "unreserved", simply moved the following code to a more
- * suitable spot...
- */
- ENTRY(dispatch_to_fault_handler)
- /*
- * Input:
- * psr.ic: off
- * r19: fault vector number (e.g., 24 for General Exception)
- * r31: contains saved predicates (pr)
- */
- SAVE_MIN_WITH_COVER_R19
- alloc r14=ar.pfs,0,0,5,0
- mov out0=r15
- mov out1=cr.isr
- mov out2=cr.ifa
- mov out3=cr.iim
- mov out4=cr.itir
- ;;
- ssm psr.ic | PSR_DEFAULT_BITS
- ;;
- srlz.i // guarantee that interruption collection is on
- ;;
- (p15) ssm psr.i // restore psr.i
- adds r3=8,r2 // set up second base pointer for SAVE_REST
- ;;
- SAVE_REST
- movl r14=ia64_leave_kernel
- ;;
- mov rp=r14
- br.call.sptk.many b6=ia64_fault
- END(dispatch_to_fault_handler)
- //
- // --- End of long entries, Beginning of short entries
- //
- .align 1024
- /////////////////////////////////////////////////////////////////////////////////////////
- // 0x5000 Entry 20 (size 16 bundles) Page Not Present (10,22,49)
- ENTRY(page_not_present)
- DBG_FAULT(20)
- mov r16=cr.ifa
- rsm psr.dt
- /*
- * The Linux page fault handler doesn't expect non-present pages to be in
- * the TLB. Flush the existing entry now, so we meet that expectation.
- */
- mov r17=PAGE_SHIFT<<2
- ;;
- ptc.l r16,r17
- ;;
- mov r31=pr
- srlz.d
- br.sptk.many page_fault
- END(page_not_present)
- .align 256
- /////////////////////////////////////////////////////////////////////////////////////////
- // 0x5100 Entry 21 (size 16 bundles) Key Permission (13,25,52)
- ENTRY(key_permission)
- DBG_FAULT(21)
- mov r16=cr.ifa
- rsm psr.dt
- mov r31=pr
- ;;
- srlz.d
- br.sptk.many page_fault
- END(key_permission)
- .align 256
- /////////////////////////////////////////////////////////////////////////////////////////
- // 0x5200 Entry 22 (size 16 bundles) Instruction Access Rights (26)
- ENTRY(iaccess_rights)
- DBG_FAULT(22)
- mov r16=cr.ifa
- rsm psr.dt
- mov r31=pr
- ;;
- srlz.d
- br.sptk.many page_fault
- END(iaccess_rights)
- .align 256
- /////////////////////////////////////////////////////////////////////////////////////////
- // 0x5300 Entry 23 (size 16 bundles) Data Access Rights (14,53)
- ENTRY(daccess_rights)
- DBG_FAULT(23)
- mov r16=cr.ifa
- rsm psr.dt
- mov r31=pr
- ;;
- srlz.d
- br.sptk.many page_fault
- END(daccess_rights)
- .align 256
- /////////////////////////////////////////////////////////////////////////////////////////
- // 0x5400 Entry 24 (size 16 bundles) General Exception (5,32,34,36,38,39)
- ENTRY(general_exception)
- DBG_FAULT(24)
- mov r16=cr.isr
- mov r31=pr
- ;;
- cmp4.eq p6,p0=0,r16
- (p6) br.sptk.many dispatch_illegal_op_fault
- ;;
- mov r19=24 // fault number
- br.sptk.many dispatch_to_fault_handler
- END(general_exception)
- .align 256
- /////////////////////////////////////////////////////////////////////////////////////////
- // 0x5500 Entry 25 (size 16 bundles) Disabled FP-Register (35)
- ENTRY(disabled_fp_reg)
- DBG_FAULT(25)
- rsm psr.dfh // ensure we can access fph
- ;;
- srlz.d
- mov r31=pr
- mov r19=25
- br.sptk.many dispatch_to_fault_handler
- END(disabled_fp_reg)
- .align 256
- /////////////////////////////////////////////////////////////////////////////////////////
- // 0x5600 Entry 26 (size 16 bundles) Nat Consumption (11,23,37,50)
- ENTRY(nat_consumption)
- DBG_FAULT(26)
- FAULT(26)
- END(nat_consumption)
- .align 256
- /////////////////////////////////////////////////////////////////////////////////////////
- // 0x5700 Entry 27 (size 16 bundles) Speculation (40)
- ENTRY(speculation_vector)
- DBG_FAULT(27)
- /*
- * A [f]chk.[as] instruction needs to take the branch to the recovery code but
- * this part of the architecture is not implemented in hardware on some CPUs, such
- * as Itanium. Thus, in general we need to emulate the behavior. IIM contains
- * the relative target (not yet sign extended). So after sign extending it we
- * simply add it to IIP. We also need to reset the EI field of the IPSR to zero,
- * i.e., the slot to restart into.
- *
- * cr.imm contains zero_ext(imm21)
- */
- mov r18=cr.iim
- ;;
- mov r17=cr.iip
- shl r18=r18,43 // put sign bit in position (43=64-21)
- ;;
- mov r16=cr.ipsr
- shr r18=r18,39 // sign extend (39=43-4)
- ;;
- add r17=r17,r18 // now add the offset
- ;;
- mov cr.iip=r17
- dep r16=0,r16,41,2 // clear EI
- ;;
- mov cr.ipsr=r16
- ;;
- rfi // and go back
- END(speculation_vector)
- .align 256
- /////////////////////////////////////////////////////////////////////////////////////////
- // 0x5800 Entry 28 (size 16 bundles) Reserved
- DBG_FAULT(28)
- FAULT(28)
- .align 256
- /////////////////////////////////////////////////////////////////////////////////////////
- // 0x5900 Entry 29 (size 16 bundles) Debug (16,28,56)
- ENTRY(debug_vector)
- DBG_FAULT(29)
- FAULT(29)
- END(debug_vector)
- .align 256
- /////////////////////////////////////////////////////////////////////////////////////////
- // 0x5a00 Entry 30 (size 16 bundles) Unaligned Reference (57)
- ENTRY(unaligned_access)
- DBG_FAULT(30)
- mov r16=cr.ipsr
- mov r31=pr // prepare to save predicates
- ;;
- br.sptk.many dispatch_unaligned_handler
- END(unaligned_access)
- .align 256
- /////////////////////////////////////////////////////////////////////////////////////////
- // 0x5b00 Entry 31 (size 16 bundles) Unsupported Data Reference (57)
- DBG_FAULT(31)
- FAULT(31)
- .align 256
- /////////////////////////////////////////////////////////////////////////////////////////
- // 0x5c00 Entry 32 (size 16 bundles) Floating-Point Fault (64)
- DBG_FAULT(32)
- FAULT(32)
- .align 256
- /////////////////////////////////////////////////////////////////////////////////////////
- // 0x5d00 Entry 33 (size 16 bundles) Floating Point Trap (66)
- DBG_FAULT(33)
- FAULT(33)
- .align 256
- /////////////////////////////////////////////////////////////////////////////////////////
- // 0x5e00 Entry 34 (size 16 bundles) Lower Privilege Tranfer Trap (66)
- DBG_FAULT(34)
- FAULT(34)
- .align 256
- /////////////////////////////////////////////////////////////////////////////////////////
- // 0x5f00 Entry 35 (size 16 bundles) Taken Branch Trap (68)
- DBG_FAULT(35)
- FAULT(35)
- .align 256
- /////////////////////////////////////////////////////////////////////////////////////////
- // 0x6000 Entry 36 (size 16 bundles) Single Step Trap (69)
- DBG_FAULT(36)
- FAULT(36)
- .align 256
- /////////////////////////////////////////////////////////////////////////////////////////
- // 0x6100 Entry 37 (size 16 bundles) Reserved
- DBG_FAULT(37)
- FAULT(37)
- .align 256
- /////////////////////////////////////////////////////////////////////////////////////////
- // 0x6200 Entry 38 (size 16 bundles) Reserved
- DBG_FAULT(38)
- FAULT(38)
- .align 256
- /////////////////////////////////////////////////////////////////////////////////////////
- // 0x6300 Entry 39 (size 16 bundles) Reserved
- DBG_FAULT(39)
- FAULT(39)
- .align 256
- /////////////////////////////////////////////////////////////////////////////////////////
- // 0x6400 Entry 40 (size 16 bundles) Reserved
- DBG_FAULT(40)
- FAULT(40)
- .align 256
- /////////////////////////////////////////////////////////////////////////////////////////
- // 0x6500 Entry 41 (size 16 bundles) Reserved
- DBG_FAULT(41)
- FAULT(41)
- .align 256
- /////////////////////////////////////////////////////////////////////////////////////////
- // 0x6600 Entry 42 (size 16 bundles) Reserved
- DBG_FAULT(42)
- FAULT(42)
- .align 256
- /////////////////////////////////////////////////////////////////////////////////////////
- // 0x6700 Entry 43 (size 16 bundles) Reserved
- DBG_FAULT(43)
- FAULT(43)
- .align 256
- /////////////////////////////////////////////////////////////////////////////////////////
- // 0x6800 Entry 44 (size 16 bundles) Reserved
- DBG_FAULT(44)
- FAULT(44)
- .align 256
- /////////////////////////////////////////////////////////////////////////////////////////
- // 0x6900 Entry 45 (size 16 bundles) IA-32 Exeception (17,18,29,41,42,43,44,58,60,61,62,72,73,75,76,77)
- ENTRY(ia32_exception)
- DBG_FAULT(45)
- FAULT(45)
- END(ia32_exception)
- .align 256
- /////////////////////////////////////////////////////////////////////////////////////////
- // 0x6a00 Entry 46 (size 16 bundles) IA-32 Intercept (30,31,59,70,71)
- ENTRY(ia32_intercept)
- DBG_FAULT(46)
- #ifdef CONFIG_IA32_SUPPORT
- mov r31=pr
- mov r16=cr.isr
- ;;
- extr.u r17=r16,16,8 // get ISR.code
- mov r18=ar.eflag
- mov r19=cr.iim // old eflag value
- ;;
- cmp.ne p6,p0=2,r17
- (p6) br.cond.spnt 1f // not a system flag fault
- xor r16=r18,r19
- ;;
- extr.u r17=r16,18,1 // get the eflags.ac bit
- ;;
- cmp.eq p6,p0=0,r17
- (p6) br.cond.spnt 1f // eflags.ac bit didn't change
- ;;
- mov pr=r31,-1 // restore predicate registers
- rfi
- 1:
- #endif // CONFIG_IA32_SUPPORT
- FAULT(46)
- END(ia32_intercept)
- .align 256
- /////////////////////////////////////////////////////////////////////////////////////////
- // 0x6b00 Entry 47 (size 16 bundles) IA-32 Interrupt (74)
- ENTRY(ia32_interrupt)
- DBG_FAULT(47)
- #ifdef CONFIG_IA32_SUPPORT
- mov r31=pr
- br.sptk.many dispatch_to_ia32_handler
- #else
- FAULT(47)
- #endif
- END(ia32_interrupt)
- .align 256
- /////////////////////////////////////////////////////////////////////////////////////////
- // 0x6c00 Entry 48 (size 16 bundles) Reserved
- DBG_FAULT(48)
- FAULT(48)
- .align 256
- /////////////////////////////////////////////////////////////////////////////////////////
- // 0x6d00 Entry 49 (size 16 bundles) Reserved
- DBG_FAULT(49)
- FAULT(49)
- .align 256
- /////////////////////////////////////////////////////////////////////////////////////////
- // 0x6e00 Entry 50 (size 16 bundles) Reserved
- DBG_FAULT(50)
- FAULT(50)
- .align 256
- /////////////////////////////////////////////////////////////////////////////////////////
- // 0x6f00 Entry 51 (size 16 bundles) Reserved
- DBG_FAULT(51)
- FAULT(51)
- .align 256
- /////////////////////////////////////////////////////////////////////////////////////////
- // 0x7000 Entry 52 (size 16 bundles) Reserved
- DBG_FAULT(52)
- FAULT(52)
- .align 256
- /////////////////////////////////////////////////////////////////////////////////////////
- // 0x7100 Entry 53 (size 16 bundles) Reserved
- DBG_FAULT(53)
- FAULT(53)
- .align 256
- /////////////////////////////////////////////////////////////////////////////////////////
- // 0x7200 Entry 54 (size 16 bundles) Reserved
- DBG_FAULT(54)
- FAULT(54)
- .align 256
- /////////////////////////////////////////////////////////////////////////////////////////
- // 0x7300 Entry 55 (size 16 bundles) Reserved
- DBG_FAULT(55)
- FAULT(55)
- .align 256
- /////////////////////////////////////////////////////////////////////////////////////////
- // 0x7400 Entry 56 (size 16 bundles) Reserved
- DBG_FAULT(56)
- FAULT(56)
- .align 256
- /////////////////////////////////////////////////////////////////////////////////////////
- // 0x7500 Entry 57 (size 16 bundles) Reserved
- DBG_FAULT(57)
- FAULT(57)
- .align 256
- /////////////////////////////////////////////////////////////////////////////////////////
- // 0x7600 Entry 58 (size 16 bundles) Reserved
- DBG_FAULT(58)
- FAULT(58)
- .align 256
- /////////////////////////////////////////////////////////////////////////////////////////
- // 0x7700 Entry 59 (size 16 bundles) Reserved
- DBG_FAULT(59)
- FAULT(59)
- .align 256
- /////////////////////////////////////////////////////////////////////////////////////////
- // 0x7800 Entry 60 (size 16 bundles) Reserved
- DBG_FAULT(60)
- FAULT(60)
- .align 256
- /////////////////////////////////////////////////////////////////////////////////////////
- // 0x7900 Entry 61 (size 16 bundles) Reserved
- DBG_FAULT(61)
- FAULT(61)
- .align 256
- /////////////////////////////////////////////////////////////////////////////////////////
- // 0x7a00 Entry 62 (size 16 bundles) Reserved
- DBG_FAULT(62)
- FAULT(62)
- .align 256
- /////////////////////////////////////////////////////////////////////////////////////////
- // 0x7b00 Entry 63 (size 16 bundles) Reserved
- DBG_FAULT(63)
- FAULT(63)
- .align 256
- /////////////////////////////////////////////////////////////////////////////////////////
- // 0x7c00 Entry 64 (size 16 bundles) Reserved
- DBG_FAULT(64)
- FAULT(64)
- .align 256
- /////////////////////////////////////////////////////////////////////////////////////////
- // 0x7d00 Entry 65 (size 16 bundles) Reserved
- DBG_FAULT(65)
- FAULT(65)
- .align 256
- /////////////////////////////////////////////////////////////////////////////////////////
- // 0x7e00 Entry 66 (size 16 bundles) Reserved
- DBG_FAULT(66)
- FAULT(66)
- .align 256
- /////////////////////////////////////////////////////////////////////////////////////////
- // 0x7f00 Entry 67 (size 16 bundles) Reserved
- DBG_FAULT(67)
- FAULT(67)