1 /// @file 2 /// CpuFlushTlb() function for Itanium-based architecture. 3 /// 4 /// Copyright (c) 2006, Intel Corporation. All rights reserved.<BR> 5 /// 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. 9 /// 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. 12 /// 13 /// Module Name: CpuFlushTlb.s 14 /// 15 /// 16 17 .auto 18 .text 19 20 ASM_GLOBAL PalCall 21 .type PalCall, @function 22 23 .proc CpuFlushTlb 24 .type CpuFlushTlb, @function 25 CpuFlushTlb:: 26 alloc loc0 = ar.pfs, 0, 3, 5, 0 27 mov out0 = 0 28 mov out1 = 6 29 mov out2 = 0 30 mov out3 = 0 31 mov loc1 = b0 32 mov out4 = 0 33 brl.call.sptk b0 = PalCall 34 mov loc2 = psr // save PSR 35 mov ar.pfs = loc0 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 40 add r10 = -1, r10 41 extr.u r11 = r11, 0, 32 // r11 <- stride2 42 br.cond.sptk LoopPredicate 43 LoopOuter: 44 mov ar.lc = r10 // LC <- count2 45 mov ar.ec = r0 // EC <- 0 46 Loop: 47 ptc.e r9 48 add r9 = r11, r9 // r9 += stride2 49 br.ctop.sptk Loop 50 add r9 = r15, r9 // r9 += stride1 51 LoopPredicate: 52 cmp.ne p6 = r0, r14 // count1 == 0? 53 add r14 = -1, r14 54 (p6) br.cond.sptk LoopOuter 55 mov psr.l = loc2 56 mov b0 = loc1 57 br.ret.sptk.many b0 58 .endp 59
