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crc32:Optimize crc32/c for cortex-a72
Change-Id: Ib1658fd4b87b31d8ea6c93f697b50d9b409c186e Signed-off-by: Jerry Yu <[email protected]>
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,135 @@ | ||
| /********************************************************************** | ||
| Copyright(c) 2020 Arm Corporation All rights reserved. | ||
|
|
||
| Redistribution and use in source and binary forms, with or without | ||
| modification, are permitted provided that the following conditions | ||
| are met: | ||
| * Redistributions of source code must retain the above copyright | ||
| notice, this list of conditions and the following disclaimer. | ||
| * Redistributions in binary form must reproduce the above copyright | ||
| notice, this list of conditions and the following disclaimer in | ||
| the documentation and/or other materials provided with the | ||
| distribution. | ||
| * Neither the name of Arm Corporation nor the names of its | ||
| contributors may be used to endorse or promote products derived | ||
| from this software without specific prior written permission. | ||
|
|
||
| THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | ||
| "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | ||
| LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR | ||
| A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT | ||
| OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | ||
| SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT | ||
| LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, | ||
| DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY | ||
| THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | ||
| (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | ||
| OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | ||
| **********************************************************************/ | ||
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| .macro crc32_hw_common poly_type | ||
| cbz LEN, .zero_length_ret | ||
| .ifc \poly_type,crc32 | ||
| mvn wCRC,wCRC | ||
| .endif | ||
| tbz BUF, 0, .align_short | ||
| ldrb wdata,[BUF],1 | ||
| sub LEN,LEN,1 | ||
| crc32_u8 wCRC,wCRC,wdata | ||
| .align_short: | ||
| tst BUF,2 | ||
| ccmp LEN,1,0,ne | ||
| bhi .align_short_2 | ||
| tst BUF,4 | ||
| ccmp LEN,3,0,ne | ||
| bhi .align_word | ||
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| .align_finish: | ||
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| cmp LEN, 63 | ||
| bls .loop_16B | ||
| .loop_64B: | ||
| ldp data0, data1, [BUF],#16 | ||
| sub LEN,LEN,#64 | ||
| ldp data2, data3, [BUF],#16 | ||
| cmp LEN,#64 | ||
| crc32_u64 wCRC, wCRC, data0 | ||
| crc32_u64 wCRC, wCRC, data1 | ||
| ldp data0, data1, [BUF],#16 | ||
| crc32_u64 wCRC, wCRC, data2 | ||
| crc32_u64 wCRC, wCRC, data3 | ||
| ldp data2, data3, [BUF],#16 | ||
| crc32_u64 wCRC, wCRC, data0 | ||
| crc32_u64 wCRC, wCRC, data1 | ||
| crc32_u64 wCRC, wCRC, data2 | ||
| crc32_u64 wCRC, wCRC, data3 | ||
| bge .loop_64B | ||
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| .loop_16B: | ||
| cmp LEN, 15 | ||
| bls .less_16B | ||
| ldp data0, data1, [BUF],#16 | ||
| sub LEN,LEN,#16 | ||
| cmp LEN,15 | ||
| crc32_u64 wCRC, wCRC, data0 | ||
| crc32_u64 wCRC, wCRC, data1 | ||
| bls .less_16B | ||
| ldp data0, data1, [BUF],#16 | ||
| sub LEN,LEN,#16 | ||
| cmp LEN,15 | ||
| crc32_u64 wCRC, wCRC, data0 | ||
| crc32_u64 wCRC, wCRC, data1 | ||
| bls .less_16B | ||
| ldp data0, data1, [BUF],#16 | ||
| sub LEN,LEN,#16 //MUST less than 16B | ||
| crc32_u64 wCRC, wCRC, data0 | ||
| crc32_u64 wCRC, wCRC, data1 | ||
| .less_16B: | ||
| cmp LEN, 7 | ||
| bls .less_8B | ||
| ldr data0, [BUF], 8 | ||
| sub LEN, LEN, #8 | ||
| crc32_u64 wCRC, wCRC, data0 | ||
| .less_8B: | ||
| cmp LEN, 3 | ||
| bls .less_4B | ||
| ldr wdata, [BUF], 4 | ||
| sub LEN, LEN, #4 | ||
| crc32_u32 wCRC, wCRC, wdata | ||
| .less_4B: | ||
| cmp LEN, 1 | ||
| bls .less_2B | ||
| ldrh wdata, [BUF], 2 | ||
| sub LEN, LEN, #2 | ||
| crc32_u16 wCRC, wCRC, wdata | ||
| .less_2B: | ||
| cbz LEN, .finish_exit | ||
| ldrb wdata, [BUF] | ||
| crc32_u8 wCRC, wCRC, wdata | ||
| .finish_exit: | ||
| .ifc \poly_type,crc32 | ||
| mvn w0, wCRC | ||
| .else | ||
| mov w0, wCRC | ||
| .endif | ||
| ret | ||
| .zero_length_ret: | ||
| mov w0, wCRC | ||
| ret | ||
| .align_short_2: | ||
| ldrh wdata, [BUF], 2 | ||
| sub LEN, LEN, 2 | ||
| tst BUF, 4 | ||
| crc32_u16 wCRC, wCRC, wdata | ||
| ccmp LEN, 3, 0, ne | ||
| bls .align_finish | ||
| .align_word: | ||
| ldr wdata, [BUF], 4 | ||
| sub LEN, LEN, #4 | ||
| crc32_u32 wCRC, wCRC, wdata | ||
| b .align_finish | ||
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| .endm |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,69 @@ | ||
| /********************************************************************** | ||
| Copyright(c) 2020 Arm Corporation All rights reserved. | ||
| Redistribution and use in source and binary forms, with or without | ||
| modification, are permitted provided that the following conditions | ||
| are met: | ||
| * Redistributions of source code must retain the above copyright | ||
| notice, this list of conditions and the following disclaimer. | ||
| * Redistributions in binary form must reproduce the above copyright | ||
| notice, this list of conditions and the following disclaimer in | ||
| the documentation and/or other materials provided with the | ||
| distribution. | ||
| * Neither the name of Arm Corporation nor the names of its | ||
| contributors may be used to endorse or promote products derived | ||
| from this software without specific prior written permission. | ||
| THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | ||
| "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | ||
| LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR | ||
| A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT | ||
| OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | ||
| SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT | ||
| LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, | ||
| DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY | ||
| THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | ||
| (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | ||
| OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | ||
| **********************************************************************/ | ||
|
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| .text | ||
| .align 6 | ||
| .arch armv8-a+crc | ||
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| #include "crc32_common_crc_ext_cortex_a72.S" | ||
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| BUF .req x1 | ||
| LEN .req x2 | ||
| wCRC .req w0 | ||
| data0 .req x4 | ||
| data1 .req x5 | ||
| data2 .req x6 | ||
| data3 .req x7 | ||
| wdata .req w3 | ||
| .macro crc32_u64 dst,src,data | ||
| crc32x \dst,\src,\data | ||
| .endm | ||
| .macro crc32_u32 dst,src,data | ||
| crc32w \dst,\src,\data | ||
| .endm | ||
| .macro crc32_u16 dst,src,data | ||
| crc32h \dst,\src,\data | ||
| .endm | ||
| .macro crc32_u8 dst,src,data | ||
| crc32b \dst,\src,\data | ||
| .endm | ||
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| /** | ||
| * uint32_t crc32_crc_ext_cortex_a72( | ||
| * uint32_t init_crc, | ||
| * const unsigned char *buf, | ||
| * uint64_t len); | ||
| */ | ||
| .global crc32_crc_ext_cortex_a72 | ||
| .type crc32_crc_ext_cortex_a72, %function | ||
| crc32_crc_ext_cortex_a72: | ||
| crc32_hw_common crc32 | ||
| ret | ||
| .size crc32_crc_ext_cortex_a72, .-crc32_crc_ext_cortex_a72 |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,68 @@ | ||
| /********************************************************************** | ||
| Copyright(c) 2020 Arm Corporation All rights reserved. | ||
| Redistribution and use in source and binary forms, with or without | ||
| modification, are permitted provided that the following conditions | ||
| are met: | ||
| * Redistributions of source code must retain the above copyright | ||
| notice, this list of conditions and the following disclaimer. | ||
| * Redistributions in binary form must reproduce the above copyright | ||
| notice, this list of conditions and the following disclaimer in | ||
| the documentation and/or other materials provided with the | ||
| distribution. | ||
| * Neither the name of Arm Corporation nor the names of its | ||
| contributors may be used to endorse or promote products derived | ||
| from this software without specific prior written permission. | ||
| THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | ||
| "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | ||
| LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR | ||
| A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT | ||
| OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | ||
| SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT | ||
| LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, | ||
| DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY | ||
| THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | ||
| (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | ||
| OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | ||
| **********************************************************************/ | ||
|
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| .text | ||
| .align 6 | ||
| .arch armv8-a+crc | ||
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| #include "crc32_common_crc_ext_cortex_a72.S" | ||
| BUF .req x0 | ||
| LEN .req x1 | ||
| wCRC .req w2 | ||
| data0 .req x4 | ||
| data1 .req x5 | ||
| data2 .req x6 | ||
| data3 .req x7 | ||
| wdata .req w3 | ||
| .macro crc32_u64 dst,src,data | ||
| crc32cx \dst,\src,\data | ||
| .endm | ||
| .macro crc32_u32 dst,src,data | ||
| crc32cw \dst,\src,\data | ||
| .endm | ||
| .macro crc32_u16 dst,src,data | ||
| crc32ch \dst,\src,\data | ||
| .endm | ||
| .macro crc32_u8 dst,src,data | ||
| crc32cb \dst,\src,\data | ||
| .endm | ||
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| /** | ||
| * uint32_t crc32c_crc_ext_cortex_a72( | ||
| * unsigned char const *buffer, | ||
| * size_t len, | ||
| * uint crc32 ) | ||
| */ | ||
| .global crc32c_crc_ext_cortex_a72 | ||
| .type crc32c_crc_ext_cortex_a72, %function | ||
| crc32c_crc_ext_cortex_a72: | ||
| crc32_hw_common crc32c | ||
| ret | ||
| .size crc32c_crc_ext_cortex_a72, .-crc32c_crc_ext_cortex_a72 |
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