diff options
| author | bxing <bxing@6f19259b-4bc3-4df7-8a09-765794883524> | 2006-05-24 05:33:03 +0000 |
|---|---|---|
| committer | bxing <bxing@6f19259b-4bc3-4df7-8a09-765794883524> | 2006-05-24 05:33:03 +0000 |
| commit | 18c319ae39f741101ccf0b076bb749e05344d443 (patch) | |
| tree | 2ff98855267f75d38c3235c911c15db2ecd0dd4a /MdePkg/Library/BaseLib/Ipf | |
| parent | 4df60ea54fd2ee5bf97586f453165ab3533a1aec (diff) | |
| download | edk2-platforms-18c319ae39f741101ccf0b076bb749e05344d443.tar.xz | |
1. Updated CpuFlushTlb() according to IA-64 programmer's guide
2. Updated Thunk code to preserve EFLAGS/RFLAGS across real mode code invocation
3. Updated comments in x86Thunk.c
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@248 6f19259b-4bc3-4df7-8a09-765794883524
Diffstat (limited to 'MdePkg/Library/BaseLib/Ipf')
| -rw-r--r-- | MdePkg/Library/BaseLib/Ipf/CpuFlushTlb.s | 38 | ||||
| -rw-r--r-- | MdePkg/Library/BaseLib/Ipf/PalCallStatic.s | 47 |
2 files changed, 80 insertions, 5 deletions
diff --git a/MdePkg/Library/BaseLib/Ipf/CpuFlushTlb.s b/MdePkg/Library/BaseLib/Ipf/CpuFlushTlb.s index 0afd87e88b..608830496c 100644 --- a/MdePkg/Library/BaseLib/Ipf/CpuFlushTlb.s +++ b/MdePkg/Library/BaseLib/Ipf/CpuFlushTlb.s @@ -17,13 +17,41 @@ .auto
.text
+.global PalCallStatic
+.type PalCallStatic, @function
+
.proc CpuFlushTlb
.type CpuFlushTlb, @function
CpuFlushTlb::
- mov r8 = ip
- mov r9 = -1
- dep.z r10 = -1, 61, 3
- and r8 = r8, r10
- ptc.l r8, r9
+ alloc loc0 = ar.pfs, 0, 2, 5, 0
+ mov out0 = 0
+ mov out1 = 6
+ mov out2 = 0
+ mov out3 = 0
+ mov out4 = 0
+ mov loc1 = b0
+ br.call.sptk b0 = PalCallStatic
+ rsm 1 << 14 // Disable interrupts
+ mov ar.pfs = loc0
+ extr.u r14 = r10, 32, 32 // r14 <- count1
+ extr.u r15 = r11, 32, 32 // r15 <- stride1
+ extr.u r10 = r10, 0, 32 // r10 <- count2
+ mov loc0 = psr
+ extr.u r11 = r11, 0, 32 // r11 <- stride2
+ br.cond.sptk LoopPredicate
+LoopOuter:
+ mov ar.lc = r10 // LC <- count2
+ mov ar.ec = r0 // EC <- 0
+Loop:
+ ptc.e r9
+ add r9 = r11, r9 // r9 += stride2
+ br.ctop.sptk Loop
+ add r9 = r15, r9 // r9 += stride1
+LoopPredicate:
+ cmp.ne p6, p7 = r0, r14 // count1 == 0?
+ add r14 = -1, r14
+(p6) br.cond.sptk LoopOuter
+ mov psr.l = loc0
+ mov b0 = loc1
br.ret.sptk.many b0
.endp
diff --git a/MdePkg/Library/BaseLib/Ipf/PalCallStatic.s b/MdePkg/Library/BaseLib/Ipf/PalCallStatic.s new file mode 100644 index 0000000000..7fa68e15f6 --- /dev/null +++ b/MdePkg/Library/BaseLib/Ipf/PalCallStatic.s @@ -0,0 +1,47 @@ +/// @file
+/// Contains an implementation of CallPalProcStatic on Itanium-based
+/// architecture.
+///
+/// Copyright (c) 2006, Intel Corporation
+/// All rights reserved. This program and the accompanying materials
+/// are licensed and made available under the terms and conditions of the BSD License
+/// which accompanies this distribution. The full text of the license may be found at
+/// http://opensource.org/licenses/bsd-license.php
+///
+/// THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+/// WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+///
+/// Module Name: PalCallStatic.s
+///
+///
+
+.auto
+.text
+
+.proc PalCallStatic
+.type PalCallStatic, @function
+.regstk 5, 0, 0, 0
+PalCallStatic::
+ cmp.ne p6, p7 = r0, in0
+ mov r31 = in4
+ mov r8 = ip
+(p6) mov in0 = ar.k5
+ add r8 = (PalProcReturn - PalCallStatic), r8
+ mov in4 = b0
+ mov r30 = in3
+ mov r29 = in2
+ mov b7 = in0
+ mov in3 = psr
+ rsm 1 << 14 // Disable interrupts
+ mov r28 = in1
+ mov in0 = 256
+ mov b0 = r8
+ br.cond.sptk b7
+PalProcReturn:
+ mov psr.l = in3
+ cmp.eq p6, p7 = in0, in1 // in1 == PAL_COPY_PAL?
+(p6) cmp.eq p6, p7 = r0, r8 // Status == Success?
+(p6) mov ar.k5 = in2
+ mov b0 = in4
+ br.ret.sptk.many b0
+.endp PalCallStatic
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