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authorIngo Molnar <mingo@elte.hu>2008-06-16 05:21:27 -0400
committerIngo Molnar <mingo@elte.hu>2008-06-16 05:21:27 -0400
commit688d22e23ab1caacb2c36c615854294b58f2ea47 (patch)
tree95c8163c0b1f56902f5537bc256d7e5507f56cee /arch/ia64/kernel/ivt.S
parent7e0edc1bc343231029084761ebf59e522902eb49 (diff)
parent066519068ad2fbe98c7f45552b1f592903a9c8c8 (diff)
Merge branch 'linus' into x86/xen
Diffstat (limited to 'arch/ia64/kernel/ivt.S')
-rw-r--r--arch/ia64/kernel/ivt.S84
1 files changed, 42 insertions, 42 deletions
diff --git a/arch/ia64/kernel/ivt.S b/arch/ia64/kernel/ivt.S
index 6678c49daba3..80b44ea052d7 100644
--- a/arch/ia64/kernel/ivt.S
+++ b/arch/ia64/kernel/ivt.S
@@ -1076,48 +1076,6 @@ END(ia64_syscall_setup)
1076 DBG_FAULT(15) 1076 DBG_FAULT(15)
1077 FAULT(15) 1077 FAULT(15)
1078 1078
1079 /*
1080 * Squatting in this space ...
1081 *
1082 * This special case dispatcher for illegal operation faults allows preserved
1083 * registers to be modified through a callback function (asm only) that is handed
1084 * back from the fault handler in r8. Up to three arguments can be passed to the
1085 * callback function by returning an aggregate with the callback as its first
1086 * element, followed by the arguments.
1087 */
1088ENTRY(dispatch_illegal_op_fault)
1089 .prologue
1090 .body
1091 SAVE_MIN_WITH_COVER
1092 ssm psr.ic | PSR_DEFAULT_BITS
1093 ;;
1094 srlz.i // guarantee that interruption collection is on
1095 ;;
1096(p15) ssm psr.i // restore psr.i
1097 adds r3=8,r2 // set up second base pointer for SAVE_REST
1098 ;;
1099 alloc r14=ar.pfs,0,0,1,0 // must be first in insn group
1100 mov out0=ar.ec
1101 ;;
1102 SAVE_REST
1103 PT_REGS_UNWIND_INFO(0)
1104 ;;
1105 br.call.sptk.many rp=ia64_illegal_op_fault
1106.ret0: ;;
1107 alloc r14=ar.pfs,0,0,3,0 // must be first in insn group
1108 mov out0=r9
1109 mov out1=r10
1110 mov out2=r11
1111 movl r15=ia64_leave_kernel
1112 ;;
1113 mov rp=r15
1114 mov b6=r8
1115 ;;
1116 cmp.ne p6,p0=0,r8
1117(p6) br.call.dpnt.many b6=b6 // call returns to ia64_leave_kernel
1118 br.sptk.many ia64_leave_kernel
1119END(dispatch_illegal_op_fault)
1120
1121 .org ia64_ivt+0x4000 1079 .org ia64_ivt+0x4000
1122///////////////////////////////////////////////////////////////////////////////////////// 1080/////////////////////////////////////////////////////////////////////////////////////////
1123// 0x4000 Entry 16 (size 64 bundles) Reserved 1081// 0x4000 Entry 16 (size 64 bundles) Reserved
@@ -1715,6 +1673,48 @@ END(ia32_interrupt)
1715 DBG_FAULT(67) 1673 DBG_FAULT(67)
1716 FAULT(67) 1674 FAULT(67)
1717 1675
1676 /*
1677 * Squatting in this space ...
1678 *
1679 * This special case dispatcher for illegal operation faults allows preserved
1680 * registers to be modified through a callback function (asm only) that is handed
1681 * back from the fault handler in r8. Up to three arguments can be passed to the
1682 * callback function by returning an aggregate with the callback as its first
1683 * element, followed by the arguments.
1684 */
1685ENTRY(dispatch_illegal_op_fault)
1686 .prologue
1687 .body
1688 SAVE_MIN_WITH_COVER
1689 ssm psr.ic | PSR_DEFAULT_BITS
1690 ;;
1691 srlz.i // guarantee that interruption collection is on
1692 ;;
1693(p15) ssm psr.i // restore psr.i
1694 adds r3=8,r2 // set up second base pointer for SAVE_REST
1695 ;;
1696 alloc r14=ar.pfs,0,0,1,0 // must be first in insn group
1697 mov out0=ar.ec
1698 ;;
1699 SAVE_REST
1700 PT_REGS_UNWIND_INFO(0)
1701 ;;
1702 br.call.sptk.many rp=ia64_illegal_op_fault
1703.ret0: ;;
1704 alloc r14=ar.pfs,0,0,3,0 // must be first in insn group
1705 mov out0=r9
1706 mov out1=r10
1707 mov out2=r11
1708 movl r15=ia64_leave_kernel
1709 ;;
1710 mov rp=r15
1711 mov b6=r8
1712 ;;
1713 cmp.ne p6,p0=0,r8
1714(p6) br.call.dpnt.many b6=b6 // call returns to ia64_leave_kernel
1715 br.sptk.many ia64_leave_kernel
1716END(dispatch_illegal_op_fault)
1717
1718#ifdef CONFIG_IA32_SUPPORT 1718#ifdef CONFIG_IA32_SUPPORT
1719 1719
1720 /* 1720 /*