diff options
-rw-r--r-- | arch/ia64/kernel/ivt.S | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/arch/ia64/kernel/ivt.S b/arch/ia64/kernel/ivt.S index b28d2212a779..3bb3a13c4047 100644 --- a/arch/ia64/kernel/ivt.S +++ b/arch/ia64/kernel/ivt.S | |||
@@ -1243,6 +1243,25 @@ END(disabled_fp_reg) | |||
1243 | // 0x5600 Entry 26 (size 16 bundles) Nat Consumption (11,23,37,50) | 1243 | // 0x5600 Entry 26 (size 16 bundles) Nat Consumption (11,23,37,50) |
1244 | ENTRY(nat_consumption) | 1244 | ENTRY(nat_consumption) |
1245 | DBG_FAULT(26) | 1245 | DBG_FAULT(26) |
1246 | |||
1247 | mov r16=cr.ipsr | ||
1248 | mov r17=cr.isr | ||
1249 | mov r31=pr // save PR | ||
1250 | ;; | ||
1251 | and r18=0xf,r17 // r18 = cr.ipsr.code{3:0} | ||
1252 | tbit.z p6,p0=r17,IA64_ISR_NA_BIT | ||
1253 | ;; | ||
1254 | cmp.ne.or p6,p0=IA64_ISR_CODE_LFETCH,r18 | ||
1255 | dep r16=-1,r16,IA64_PSR_ED_BIT,1 | ||
1256 | (p6) br.cond.spnt 1f // branch if (cr.ispr.na == 0 || cr.ipsr.code{3:0} != LFETCH) | ||
1257 | ;; | ||
1258 | mov cr.ipsr=r16 // set cr.ipsr.na | ||
1259 | mov pr=r31,-1 | ||
1260 | ;; | ||
1261 | rfi | ||
1262 | |||
1263 | 1: mov pr=r31,-1 | ||
1264 | ;; | ||
1246 | FAULT(26) | 1265 | FAULT(26) |
1247 | END(nat_consumption) | 1266 | END(nat_consumption) |
1248 | 1267 | ||