2 /// CpuFlushTlb() function for Itanium-based architecture.
4 /// Copyright (c) 2006, Intel Corporation
5 /// All rights reserved. This program and the accompanying materials
6 /// are licensed and made available under the terms and conditions of the BSD License
7 /// which accompanies this distribution. The full text of the license may be found at
8 /// http://opensource.org/licenses/bsd-license.php
10 /// THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
11 /// WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
13 /// Module Name: CpuFlushTlb.s
21 .type PalCall, @function
24 .type CpuFlushTlb, @function
26 alloc loc0 = ar.pfs, 0, 3, 5, 0
33 brl.call.sptk b0 = PalCall
34 mov loc2 = psr // save PSR
36 extr.u r14 = r10, 32, 32 // r14 <- count1
37 rsm 1 << 14 // Disable interrupts
38 extr.u r15 = r11, 32, 32 // r15 <- stride1
39 extr.u r10 = r10, 0, 32 // r10 <- count2
41 extr.u r11 = r11, 0, 32 // r11 <- stride2
42 br.cond.sptk LoopPredicate
44 mov ar.lc = r10 // LC <- count2
45 mov ar.ec = r0 // EC <- 0
48 add r9 = r11, r9 // r9 += stride2
50 add r9 = r15, r9 // r9 += stride1
52 cmp.ne p6 = r0, r14 // count1 == 0?
54 (p6) br.cond.sptk LoopOuter