mirror of
https://github.com/intel/isa-l.git
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fc1467deb2
Change-Id: I114bfcfa8750c7ba3a50ad2be9dd9e87cb7a1042 Signed-off-by: Greg Tucker <greg.b.tucker@intel.com>
308 lines
7.7 KiB
NASM
308 lines
7.7 KiB
NASM
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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; Copyright(c) 2011-2015 Intel Corporation All rights reserved.
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;
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; Redistribution and use in source and binary forms, with or without
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; modification, are permitted provided that the following conditions
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; are met:
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; * Redistributions of source code must retain the above copyright
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; notice, this list of conditions and the following disclaimer.
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; * Redistributions in binary form must reproduce the above copyright
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; notice, this list of conditions and the following disclaimer in
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; the documentation and/or other materials provided with the
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; distribution.
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; * Neither the name of Intel Corporation nor the names of its
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; contributors may be used to endorse or promote products derived
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; from this software without specific prior written permission.
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;
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; THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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; "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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; LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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; A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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; OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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; SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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; LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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; DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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; THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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; (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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; OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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%ifndef _MULTIBINARY_ASM_
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%define _MULTIBINARY_ASM_
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%ifidn __OUTPUT_FORMAT__, elf32
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%define mbin_def_ptr dd
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%define mbin_ptr_sz dword
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%define mbin_rdi edi
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%define mbin_rsi esi
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%define mbin_rax eax
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%define mbin_rbx ebx
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%define mbin_rcx ecx
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%define mbin_rdx edx
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%else
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%define mbin_def_ptr dq
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%define mbin_ptr_sz qword
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%define mbin_rdi rdi
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%define mbin_rsi rsi
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%define mbin_rax rax
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%define mbin_rbx rbx
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%define mbin_rcx rcx
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%define mbin_rdx rdx
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%endif
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;;;;
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; multibinary macro:
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; creates the visable entry point that uses HW optimized call pointer
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; creates the init of the HW optimized call pointer
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;;;;
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%macro mbin_interface 1
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;;;;
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; *_dispatched is defaulted to *_mbinit and replaced on first call.
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; Therefore, *_dispatch_init is only executed on first call.
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;;;;
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section .data
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%1_dispatched:
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mbin_def_ptr %1_mbinit
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section .text
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global %1:function
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%1_mbinit:
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;;; only called the first time to setup hardware match
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call %1_dispatch_init
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;;; falls thru to execute the hw optimized code
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%1:
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jmp mbin_ptr_sz [%1_dispatched]
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%endmacro
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;;;;;
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; mbin_dispatch_init parameters
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; Use this function when SSE/00/01 is a minimum requirement
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; 1-> function name
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; 2-> SSE/00/01 optimized function used as base
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; 3-> AVX or AVX/02 opt func
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; 4-> AVX2 or AVX/04 opt func
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;;;;;
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%macro mbin_dispatch_init 4
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section .text
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%1_dispatch_init:
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push mbin_rsi
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push mbin_rax
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push mbin_rbx
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push mbin_rcx
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push mbin_rdx
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lea mbin_rsi, [%2 WRT_OPT] ; Default to SSE 00/01
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mov eax, 1
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cpuid
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and ecx, (FLAG_CPUID1_ECX_AVX | FLAG_CPUID1_ECX_OSXSAVE)
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cmp ecx, (FLAG_CPUID1_ECX_AVX | FLAG_CPUID1_ECX_OSXSAVE)
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lea mbin_rbx, [%3 WRT_OPT] ; AVX (gen2) opt func
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jne _%1_init_done ; AVX is not available so end
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mov mbin_rsi, mbin_rbx
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;; Try for AVX2
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xor ecx, ecx
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mov eax, 7
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cpuid
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test ebx, FLAG_CPUID7_EBX_AVX2
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lea mbin_rbx, [%4 WRT_OPT] ; AVX (gen4) opt func
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cmovne mbin_rsi, mbin_rbx
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;; Does it have xmm and ymm support
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xor ecx, ecx
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xgetbv
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and eax, FLAG_XGETBV_EAX_XMM_YMM
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cmp eax, FLAG_XGETBV_EAX_XMM_YMM
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je _%1_init_done
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lea mbin_rsi, [%2 WRT_OPT]
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_%1_init_done:
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pop mbin_rdx
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pop mbin_rcx
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pop mbin_rbx
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pop mbin_rax
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mov [%1_dispatched], mbin_rsi
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pop mbin_rsi
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ret
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%endmacro
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;;;;;
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; mbin_dispatch_init2 parameters
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; Cases where only base functions are available
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; 1-> function name
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; 2-> base function
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;;;;;
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%macro mbin_dispatch_init2 2
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section .text
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%1_dispatch_init:
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push mbin_rsi
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lea mbin_rsi, [%2 WRT_OPT] ; Default
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mov [%1_dispatched], mbin_rsi
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pop mbin_rsi
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ret
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%endmacro
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;;;;;
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; mbin_dispatch_init_clmul 3 parameters
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; Use this case for CRC which needs both SSE4_1 and CLMUL
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; 1-> function name
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; 2-> base function
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; 3-> SSE4_1 and CLMUL optimized function
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;;;;;
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%macro mbin_dispatch_init_clmul 3
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section .text
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%1_dispatch_init:
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push mbin_rsi
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push mbin_rax
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push mbin_rbx
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push mbin_rcx
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push mbin_rdx
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lea mbin_rsi, [%2 WRT_OPT] ; Default - use base function
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mov eax, 1
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cpuid
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lea mbin_rbx, [%3 WRT_OPT] ; SSE opt func
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; Test for SSE4.2
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test ecx, FLAG_CPUID1_ECX_SSE4_1
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jz _%1_init_done
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test ecx, FLAG_CPUID1_ECX_CLMUL
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cmovne mbin_rsi, mbin_rbx
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_%1_init_done:
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pop mbin_rdx
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pop mbin_rcx
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pop mbin_rbx
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pop mbin_rax
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mov [%1_dispatched], mbin_rsi
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pop mbin_rsi
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ret
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%endmacro
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;;;;;
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; mbin_dispatch_init5 parameters
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; 1-> function name
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; 2-> base function
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; 3-> SSE4_2 or 00/01 optimized function
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; 4-> AVX/02 opt func
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; 5-> AVX2/04 opt func
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;;;;;
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%macro mbin_dispatch_init5 5
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section .text
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%1_dispatch_init:
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push mbin_rsi
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push mbin_rax
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push mbin_rbx
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push mbin_rcx
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push mbin_rdx
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lea mbin_rsi, [%2 WRT_OPT] ; Default - use base function
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mov eax, 1
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cpuid
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; Test for SSE4.2
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test ecx, FLAG_CPUID1_ECX_SSE4_2
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lea mbin_rbx, [%3 WRT_OPT] ; SSE opt func
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cmovne mbin_rsi, mbin_rbx
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and ecx, (FLAG_CPUID1_ECX_AVX | FLAG_CPUID1_ECX_OSXSAVE)
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cmp ecx, (FLAG_CPUID1_ECX_AVX | FLAG_CPUID1_ECX_OSXSAVE)
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lea mbin_rbx, [%4 WRT_OPT] ; AVX (gen2) opt func
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jne _%1_init_done ; AVX is not available so end
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mov mbin_rsi, mbin_rbx
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;; Try for AVX2
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xor ecx, ecx
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mov eax, 7
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cpuid
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test ebx, FLAG_CPUID7_EBX_AVX2
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lea mbin_rbx, [%5 WRT_OPT] ; AVX (gen4) opt func
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cmovne mbin_rsi, mbin_rbx
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;; Does it have xmm and ymm support
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xor ecx, ecx
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xgetbv
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and eax, FLAG_XGETBV_EAX_XMM_YMM
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cmp eax, FLAG_XGETBV_EAX_XMM_YMM
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je _%1_init_done
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lea mbin_rsi, [%3 WRT_OPT]
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_%1_init_done:
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pop mbin_rdx
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pop mbin_rcx
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pop mbin_rbx
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pop mbin_rax
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mov [%1_dispatched], mbin_rsi
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pop mbin_rsi
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ret
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%endmacro
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;;;;;
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; mbin_dispatch_init6 parameters
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; 1-> function name
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; 2-> base function
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; 3-> SSE4_2 or 00/01 optimized function
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; 4-> AVX/02 opt func
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; 5-> AVX2/04 opt func
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; 6-> AVX512/06 opt func
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;;;;;
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%macro mbin_dispatch_init6 6
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section .text
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%1_dispatch_init:
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push mbin_rsi
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push mbin_rax
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push mbin_rbx
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push mbin_rcx
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push mbin_rdx
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push mbin_rdi
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lea mbin_rsi, [%2 WRT_OPT] ; Default - use base function
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mov eax, 1
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cpuid
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mov ebx, ecx ; save cpuid1.ecx
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test ecx, FLAG_CPUID1_ECX_SSE4_2
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je _%1_init_done ; Use base function if no SSE4_2
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lea mbin_rsi, [%3 WRT_OPT] ; SSE possible so use 00/01 opt
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;; Test for XMM_YMM support/AVX
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test ecx, FLAG_CPUID1_ECX_OSXSAVE
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je _%1_init_done
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xor ecx, ecx
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xgetbv ; xcr -> edx:eax
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mov edi, eax ; save xgetvb.eax
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and eax, FLAG_XGETBV_EAX_XMM_YMM
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cmp eax, FLAG_XGETBV_EAX_XMM_YMM
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jne _%1_init_done
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test ebx, FLAG_CPUID1_ECX_AVX
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je _%1_init_done
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lea mbin_rsi, [%4 WRT_OPT] ; AVX/02 opt
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;; Test for AVX2
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xor ecx, ecx
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mov eax, 7
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cpuid
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test ebx, FLAG_CPUID7_EBX_AVX2
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je _%1_init_done ; No AVX2 possible
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lea mbin_rsi, [%5 WRT_OPT] ; AVX2/04 opt func
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;; Test for AVX512
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and edi, FLAG_XGETBV_EAX_ZMM_OPM
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cmp edi, FLAG_XGETBV_EAX_ZMM_OPM
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jne _%1_init_done ; No AVX512 possible
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and ebx, FLAGS_CPUID7_ECX_AVX512_G1
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cmp ebx, FLAGS_CPUID7_ECX_AVX512_G1
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lea mbin_rbx, [%6 WRT_OPT] ; AVX512/06 opt
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cmove mbin_rsi, mbin_rbx
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_%1_init_done:
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pop mbin_rdi
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pop mbin_rdx
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pop mbin_rcx
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pop mbin_rbx
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pop mbin_rax
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mov [%1_dispatched], mbin_rsi
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pop mbin_rsi
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ret
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%endmacro
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%endif ; ifndef _MULTIBINARY_ASM_
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