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git.proxmox.com Git - mirror_edk2.git/blob - MdePkg/Library/BaseCacheMaintenanceLib/IpfCache.c
2 Cache Maintenance Functions.
4 Copyright (c) 2006, Intel Corporation<BR>
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.
17 Invalidates the entire instruction cache in cache coherency domain of the
20 Invalidates the entire instruction cache in cache coherency domain of the
26 InvalidateInstructionCache (
30 PalCallStatic (NULL
, 1, 1, 1, 0);
34 Invalidates a range of instruction cache lines in the cache coherency domain
37 Invalidates the instruction cache lines specified by Address and Length. If
38 Address is not aligned on a cache line boundary, then entire instruction
39 cache line containing Address is invalidated. If Address + Length is not
40 aligned on a cache line boundary, then the entire instruction cache line
41 containing Address + Length -1 is invalidated. This function may choose to
42 invalidate the entire instruction cache if that is more efficient than
43 invalidating the specified range. If Length is 0, the no instruction cache
44 lines are invalidated. Address is returned.
46 If Length is greater than (MAX_ADDRESS - Address + 1), then ASSERT().
48 @param Address The base address of the instruction cache lines to
49 invalidate. If the CPU is in a physical addressing mode, then
50 Address is a physical address. If the CPU is in a virtual
51 addressing mode, then Address is a virtual address.
53 @param Length The number of bytes to invalidate from the instruction cache.
60 InvalidateInstructionCacheRange (
65 return IpfFlushCacheRange (Address
, Length
);
69 Writes Back and Invalidates the entire data cache in cache coherency domain
72 Writes Back and Invalidates the entire data cache in cache coherency domain
73 of the calling CPU. This function guarantees that all dirty cache lines are
74 written back to system memory, and also invalidates all the data cache lines
75 in the cache coherency domain of the calling CPU.
80 WriteBackInvalidateDataCache (
84 PalCallStatic (NULL
, 1, 2, 1, 0);
88 Writes Back and Invalidates a range of data cache lines in the cache
89 coherency domain of the calling CPU.
91 Writes Back and Invalidate the data cache lines specified by Address and
92 Length. If Address is not aligned on a cache line boundary, then entire data
93 cache line containing Address is written back and invalidated. If Address +
94 Length is not aligned on a cache line boundary, then the entire data cache
95 line containing Address + Length -1 is written back and invalidated. This
96 function may choose to write back and invalidate the entire data cache if
97 that is more efficient than writing back and invalidating the specified
98 range. If Length is 0, the no data cache lines are written back and
99 invalidated. Address is returned.
101 If Length is greater than (MAX_ADDRESS - Address + 1), then ASSERT().
103 @param Address The base address of the data cache lines to write back and
104 invalidate. If the CPU is in a physical addressing mode, then
105 Address is a physical address. If the CPU is in a virtual
106 addressing mode, then Address is a virtual address.
107 @param Length The number of bytes to write back and invalidate from the
115 WriteBackInvalidateDataCacheRange (
120 ASSERT (Length
<= MAX_ADDRESS
- (UINTN
)Address
+ 1);
122 return IpfFlushCacheRange (Address
, Length
);
126 Writes Back the entire data cache in cache coherency domain of the calling
129 Writes Back the entire data cache in cache coherency domain of the calling
130 CPU. This function guarantees that all dirty cache lines are written back to
131 system memory. This function may also invalidate all the data cache lines in
132 the cache coherency domain of the calling CPU.
141 PalCallStatic (NULL
, 1, 2, 0, 0);
145 Writes Back a range of data cache lines in the cache coherency domain of the
148 Writes Back the data cache lines specified by Address and Length. If Address
149 is not aligned on a cache line boundary, then entire data cache line
150 containing Address is written back. If Address + Length is not aligned on a
151 cache line boundary, then the entire data cache line containing Address +
152 Length -1 is written back. This function may choose to write back the entire
153 data cache if that is more efficient than writing back the specified range.
154 If Length is 0, the no data cache lines are written back. This function may
155 also invalidate all the data cache lines in the specified range of the cache
156 coherency domain of the calling CPU. Address is returned.
158 If Length is greater than (MAX_ADDRESS - Address + 1), then ASSERT().
160 @param Address The base address of the data cache lines to write back. If
161 the CPU is in a physical addressing mode, then Address is a
162 physical address. If the CPU is in a virtual addressing
163 mode, then Address is a virtual address.
164 @param Length The number of bytes to write back from the data cache.
171 WriteBackDataCacheRange (
176 ASSERT (Length
<= MAX_ADDRESS
- (UINTN
)Address
+ 1);
178 return IpfFlushCacheRange (Address
, Length
);
182 Invalidates the entire data cache in cache coherency domain of the calling
185 Invalidates the entire data cache in cache coherency domain of the calling
186 CPU. This function must be used with care because dirty cache lines are not
187 written back to system memory. It is typically used for cache diagnostics. If
188 the CPU does not support invalidation of the entire data cache, then a write
189 back and invalidate operation should be performed on the entire data cache.
194 InvalidateDataCache (
198 WriteBackInvalidateDataCache ();
202 Invalidates a range of data cache lines in the cache coherency domain of the
205 Invalidates the data cache lines specified by Address and Length. If Address
206 is not aligned on a cache line boundary, then entire data cache line
207 containing Address is invalidated. If Address + Length is not aligned on a
208 cache line boundary, then the entire data cache line containing Address +
209 Length -1 is invalidated. This function must never invalidate any cache lines
210 outside the specified range. If Length is 0, the no data cache lines are
211 invalidated. Address is returned. This function must be used with care
212 because dirty cache lines are not written back to system memory. It is
213 typically used for cache diagnostics. If the CPU does not support
214 invalidation of a data cache range, then a write back and invalidate
215 operation should be performed on the data cache range.
217 If Length is greater than (MAX_ADDRESS - Address + 1), then ASSERT().
219 @param Address The base address of the data cache lines to invalidate. If
220 the CPU is in a physical addressing mode, then Address is a
221 physical address. If the CPU is in a virtual addressing mode,
222 then Address is a virtual address.
223 @param Length The number of bytes to invalidate from the data cache.
230 InvalidateDataCacheRange (
235 return IpfFlushCacheRange (Address
, Length
);