From: Christoph Hellwig <hch@lst.de>
To: Andrew Morton <akpm@linux-foundation.org>
Cc: Richard Henderson <richard.henderson@linaro.org>,
Matt Turner <mattst88@gmail.com>,
Magnus Lindholm <linmag7@gmail.com>,
Russell King <linux@armlinux.org.uk>,
Catalin Marinas <catalin.marinas@arm.com>,
Will Deacon <will@kernel.org>, Ard Biesheuvel <ardb@kernel.org>,
Huacai Chen <chenhuacai@kernel.org>,
WANG Xuerui <kernel@xen0n.name>,
Madhavan Srinivasan <maddy@linux.ibm.com>,
Michael Ellerman <mpe@ellerman.id.au>,
Nicholas Piggin <npiggin@gmail.com>,
"Christophe Leroy (CS GROUP)" <chleroy@kernel.org>,
Paul Walmsley <pjw@kernel.org>,
Palmer Dabbelt <palmer@dabbelt.com>,
Albert Ou <aou@eecs.berkeley.edu>,
Alexandre Ghiti <alex@ghiti.fr>,
Heiko Carstens <hca@linux.ibm.com>,
Vasily Gorbik <gor@linux.ibm.com>,
Alexander Gordeev <agordeev@linux.ibm.com>,
Christian Borntraeger <borntraeger@linux.ibm.com>,
Sven Schnelle <svens@linux.ibm.com>,
"David S. Miller" <davem@davemloft.net>,
Andreas Larsson <andreas@gaisler.com>,
Richard Weinberger <richard@nod.at>,
Anton Ivanov <anton.ivanov@cambridgegreys.com>,
Johannes Berg <johannes@sipsolutions.net>,
Thomas Gleixner <tglx@kernel.org>, Ingo Molnar <mingo@redhat.com>,
Borislav Petkov <bp@alien8.de>,
Dave Hansen <dave.hansen@linux.intel.com>,
x86@kernel.org, "H. Peter Anvin" <hpa@zytor.com>,
Herbert Xu <herbert@gondor.apana.org.au>,
Dan Williams <dan.j.williams@intel.com>, Chris Mason <clm@fb.com>,
David Sterba <dsterba@suse.com>, Arnd Bergmann <arnd@arndb.de>,
Song Liu <song@kernel.org>, Yu Kuai <yukuai@fnnas.com>,
Li Nan <linan122@huawei.com>, "Theodore Ts'o" <tytso@mit.edu>,
"Jason A. Donenfeld" <Jason@zx2c4.com>,
linux-alpha@vger.kernel.org, linux-kernel@vger.kernel.org,
linux-arm-kernel@lists.infradead.org, loongarch@lists.linux.dev,
linuxppc-dev@lists.ozlabs.org, linux-riscv@lists.infradead.org,
linux-s390@vger.kernel.org, sparclinux@vger.kernel.org,
linux-um@lists.infradead.org, linux-crypto@vger.kernel.org,
linux-btrfs@vger.kernel.org, linux-arch@vger.kernel.org,
linux-raid@vger.kernel.org
Subject: [PATCH 10/26] alpha: move the XOR code to lib/raid/
Date: Tue, 24 Mar 2026 07:21:46 +0100 [thread overview]
Message-ID: <20260324062211.3216301-11-hch@lst.de> (raw)
In-Reply-To: <20260324062211.3216301-1-hch@lst.de>
Move the optimized XOR code out of line into lib/raid.
Note that the giant inline assembly block might be better off as a
separate assembly source file now, but I'll leave that to the alpha
maintainers.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Acked-by: Magnus Lindholm <linmag7@gmail.com>
Tested-by: Magnus Lindholm <linmag7@gmail.com>
---
arch/alpha/include/asm/xor.h | 853 +----------------------------------
lib/raid/xor/Makefile | 2 +
lib/raid/xor/alpha/xor.c | 849 ++++++++++++++++++++++++++++++++++
3 files changed, 855 insertions(+), 849 deletions(-)
create mode 100644 lib/raid/xor/alpha/xor.c
diff --git a/arch/alpha/include/asm/xor.h b/arch/alpha/include/asm/xor.h
index 4c8085711df1..e517be577a09 100644
--- a/arch/alpha/include/asm/xor.h
+++ b/arch/alpha/include/asm/xor.h
@@ -1,856 +1,11 @@
/* SPDX-License-Identifier: GPL-2.0-or-later */
-/*
- * include/asm-alpha/xor.h
- *
- * Optimized RAID-5 checksumming functions for alpha EV5 and EV6
- */
-
-extern void
-xor_alpha_2(unsigned long bytes, unsigned long * __restrict p1,
- const unsigned long * __restrict p2);
-extern void
-xor_alpha_3(unsigned long bytes, unsigned long * __restrict p1,
- const unsigned long * __restrict p2,
- const unsigned long * __restrict p3);
-extern void
-xor_alpha_4(unsigned long bytes, unsigned long * __restrict p1,
- const unsigned long * __restrict p2,
- const unsigned long * __restrict p3,
- const unsigned long * __restrict p4);
-extern void
-xor_alpha_5(unsigned long bytes, unsigned long * __restrict p1,
- const unsigned long * __restrict p2,
- const unsigned long * __restrict p3,
- const unsigned long * __restrict p4,
- const unsigned long * __restrict p5);
-
-extern void
-xor_alpha_prefetch_2(unsigned long bytes, unsigned long * __restrict p1,
- const unsigned long * __restrict p2);
-extern void
-xor_alpha_prefetch_3(unsigned long bytes, unsigned long * __restrict p1,
- const unsigned long * __restrict p2,
- const unsigned long * __restrict p3);
-extern void
-xor_alpha_prefetch_4(unsigned long bytes, unsigned long * __restrict p1,
- const unsigned long * __restrict p2,
- const unsigned long * __restrict p3,
- const unsigned long * __restrict p4);
-extern void
-xor_alpha_prefetch_5(unsigned long bytes, unsigned long * __restrict p1,
- const unsigned long * __restrict p2,
- const unsigned long * __restrict p3,
- const unsigned long * __restrict p4,
- const unsigned long * __restrict p5);
-asm(" \n\
- .text \n\
- .align 3 \n\
- .ent xor_alpha_2 \n\
-xor_alpha_2: \n\
- .prologue 0 \n\
- srl $16, 6, $16 \n\
- .align 4 \n\
-2: \n\
- ldq $0,0($17) \n\
- ldq $1,0($18) \n\
- ldq $2,8($17) \n\
- ldq $3,8($18) \n\
- \n\
- ldq $4,16($17) \n\
- ldq $5,16($18) \n\
- ldq $6,24($17) \n\
- ldq $7,24($18) \n\
- \n\
- ldq $19,32($17) \n\
- ldq $20,32($18) \n\
- ldq $21,40($17) \n\
- ldq $22,40($18) \n\
- \n\
- ldq $23,48($17) \n\
- ldq $24,48($18) \n\
- ldq $25,56($17) \n\
- xor $0,$1,$0 # 7 cycles from $1 load \n\
- \n\
- ldq $27,56($18) \n\
- xor $2,$3,$2 \n\
- stq $0,0($17) \n\
- xor $4,$5,$4 \n\
- \n\
- stq $2,8($17) \n\
- xor $6,$7,$6 \n\
- stq $4,16($17) \n\
- xor $19,$20,$19 \n\
- \n\
- stq $6,24($17) \n\
- xor $21,$22,$21 \n\
- stq $19,32($17) \n\
- xor $23,$24,$23 \n\
- \n\
- stq $21,40($17) \n\
- xor $25,$27,$25 \n\
- stq $23,48($17) \n\
- subq $16,1,$16 \n\
- \n\
- stq $25,56($17) \n\
- addq $17,64,$17 \n\
- addq $18,64,$18 \n\
- bgt $16,2b \n\
- \n\
- ret \n\
- .end xor_alpha_2 \n\
- \n\
- .align 3 \n\
- .ent xor_alpha_3 \n\
-xor_alpha_3: \n\
- .prologue 0 \n\
- srl $16, 6, $16 \n\
- .align 4 \n\
-3: \n\
- ldq $0,0($17) \n\
- ldq $1,0($18) \n\
- ldq $2,0($19) \n\
- ldq $3,8($17) \n\
- \n\
- ldq $4,8($18) \n\
- ldq $6,16($17) \n\
- ldq $7,16($18) \n\
- ldq $21,24($17) \n\
- \n\
- ldq $22,24($18) \n\
- ldq $24,32($17) \n\
- ldq $25,32($18) \n\
- ldq $5,8($19) \n\
- \n\
- ldq $20,16($19) \n\
- ldq $23,24($19) \n\
- ldq $27,32($19) \n\
- nop \n\
- \n\
- xor $0,$1,$1 # 8 cycles from $0 load \n\
- xor $3,$4,$4 # 6 cycles from $4 load \n\
- xor $6,$7,$7 # 6 cycles from $7 load \n\
- xor $21,$22,$22 # 5 cycles from $22 load \n\
- \n\
- xor $1,$2,$2 # 9 cycles from $2 load \n\
- xor $24,$25,$25 # 5 cycles from $25 load \n\
- stq $2,0($17) \n\
- xor $4,$5,$5 # 6 cycles from $5 load \n\
- \n\
- stq $5,8($17) \n\
- xor $7,$20,$20 # 7 cycles from $20 load \n\
- stq $20,16($17) \n\
- xor $22,$23,$23 # 7 cycles from $23 load \n\
- \n\
- stq $23,24($17) \n\
- xor $25,$27,$27 # 7 cycles from $27 load \n\
- stq $27,32($17) \n\
- nop \n\
- \n\
- ldq $0,40($17) \n\
- ldq $1,40($18) \n\
- ldq $3,48($17) \n\
- ldq $4,48($18) \n\
- \n\
- ldq $6,56($17) \n\
- ldq $7,56($18) \n\
- ldq $2,40($19) \n\
- ldq $5,48($19) \n\
- \n\
- ldq $20,56($19) \n\
- xor $0,$1,$1 # 4 cycles from $1 load \n\
- xor $3,$4,$4 # 5 cycles from $4 load \n\
- xor $6,$7,$7 # 5 cycles from $7 load \n\
- \n\
- xor $1,$2,$2 # 4 cycles from $2 load \n\
- xor $4,$5,$5 # 5 cycles from $5 load \n\
- stq $2,40($17) \n\
- xor $7,$20,$20 # 4 cycles from $20 load \n\
- \n\
- stq $5,48($17) \n\
- subq $16,1,$16 \n\
- stq $20,56($17) \n\
- addq $19,64,$19 \n\
- \n\
- addq $18,64,$18 \n\
- addq $17,64,$17 \n\
- bgt $16,3b \n\
- ret \n\
- .end xor_alpha_3 \n\
- \n\
- .align 3 \n\
- .ent xor_alpha_4 \n\
-xor_alpha_4: \n\
- .prologue 0 \n\
- srl $16, 6, $16 \n\
- .align 4 \n\
-4: \n\
- ldq $0,0($17) \n\
- ldq $1,0($18) \n\
- ldq $2,0($19) \n\
- ldq $3,0($20) \n\
- \n\
- ldq $4,8($17) \n\
- ldq $5,8($18) \n\
- ldq $6,8($19) \n\
- ldq $7,8($20) \n\
- \n\
- ldq $21,16($17) \n\
- ldq $22,16($18) \n\
- ldq $23,16($19) \n\
- ldq $24,16($20) \n\
- \n\
- ldq $25,24($17) \n\
- xor $0,$1,$1 # 6 cycles from $1 load \n\
- ldq $27,24($18) \n\
- xor $2,$3,$3 # 6 cycles from $3 load \n\
- \n\
- ldq $0,24($19) \n\
- xor $1,$3,$3 \n\
- ldq $1,24($20) \n\
- xor $4,$5,$5 # 7 cycles from $5 load \n\
- \n\
- stq $3,0($17) \n\
- xor $6,$7,$7 \n\
- xor $21,$22,$22 # 7 cycles from $22 load \n\
- xor $5,$7,$7 \n\
- \n\
- stq $7,8($17) \n\
- xor $23,$24,$24 # 7 cycles from $24 load \n\
- ldq $2,32($17) \n\
- xor $22,$24,$24 \n\
- \n\
- ldq $3,32($18) \n\
- ldq $4,32($19) \n\
- ldq $5,32($20) \n\
- xor $25,$27,$27 # 8 cycles from $27 load \n\
- \n\
- ldq $6,40($17) \n\
- ldq $7,40($18) \n\
- ldq $21,40($19) \n\
- ldq $22,40($20) \n\
- \n\
- stq $24,16($17) \n\
- xor $0,$1,$1 # 9 cycles from $1 load \n\
- xor $2,$3,$3 # 5 cycles from $3 load \n\
- xor $27,$1,$1 \n\
- \n\
- stq $1,24($17) \n\
- xor $4,$5,$5 # 5 cycles from $5 load \n\
- ldq $23,48($17) \n\
- ldq $24,48($18) \n\
- \n\
- ldq $25,48($19) \n\
- xor $3,$5,$5 \n\
- ldq $27,48($20) \n\
- ldq $0,56($17) \n\
- \n\
- ldq $1,56($18) \n\
- ldq $2,56($19) \n\
- xor $6,$7,$7 # 8 cycles from $6 load \n\
- ldq $3,56($20) \n\
- \n\
- stq $5,32($17) \n\
- xor $21,$22,$22 # 8 cycles from $22 load \n\
- xor $7,$22,$22 \n\
- xor $23,$24,$24 # 5 cycles from $24 load \n\
- \n\
- stq $22,40($17) \n\
- xor $25,$27,$27 # 5 cycles from $27 load \n\
- xor $24,$27,$27 \n\
- xor $0,$1,$1 # 5 cycles from $1 load \n\
- \n\
- stq $27,48($17) \n\
- xor $2,$3,$3 # 4 cycles from $3 load \n\
- xor $1,$3,$3 \n\
- subq $16,1,$16 \n\
- \n\
- stq $3,56($17) \n\
- addq $20,64,$20 \n\
- addq $19,64,$19 \n\
- addq $18,64,$18 \n\
- \n\
- addq $17,64,$17 \n\
- bgt $16,4b \n\
- ret \n\
- .end xor_alpha_4 \n\
- \n\
- .align 3 \n\
- .ent xor_alpha_5 \n\
-xor_alpha_5: \n\
- .prologue 0 \n\
- srl $16, 6, $16 \n\
- .align 4 \n\
-5: \n\
- ldq $0,0($17) \n\
- ldq $1,0($18) \n\
- ldq $2,0($19) \n\
- ldq $3,0($20) \n\
- \n\
- ldq $4,0($21) \n\
- ldq $5,8($17) \n\
- ldq $6,8($18) \n\
- ldq $7,8($19) \n\
- \n\
- ldq $22,8($20) \n\
- ldq $23,8($21) \n\
- ldq $24,16($17) \n\
- ldq $25,16($18) \n\
- \n\
- ldq $27,16($19) \n\
- xor $0,$1,$1 # 6 cycles from $1 load \n\
- ldq $28,16($20) \n\
- xor $2,$3,$3 # 6 cycles from $3 load \n\
- \n\
- ldq $0,16($21) \n\
- xor $1,$3,$3 \n\
- ldq $1,24($17) \n\
- xor $3,$4,$4 # 7 cycles from $4 load \n\
- \n\
- stq $4,0($17) \n\
- xor $5,$6,$6 # 7 cycles from $6 load \n\
- xor $7,$22,$22 # 7 cycles from $22 load \n\
- xor $6,$23,$23 # 7 cycles from $23 load \n\
- \n\
- ldq $2,24($18) \n\
- xor $22,$23,$23 \n\
- ldq $3,24($19) \n\
- xor $24,$25,$25 # 8 cycles from $25 load \n\
- \n\
- stq $23,8($17) \n\
- xor $25,$27,$27 # 8 cycles from $27 load \n\
- ldq $4,24($20) \n\
- xor $28,$0,$0 # 7 cycles from $0 load \n\
- \n\
- ldq $5,24($21) \n\
- xor $27,$0,$0 \n\
- ldq $6,32($17) \n\
- ldq $7,32($18) \n\
- \n\
- stq $0,16($17) \n\
- xor $1,$2,$2 # 6 cycles from $2 load \n\
- ldq $22,32($19) \n\
- xor $3,$4,$4 # 4 cycles from $4 load \n\
- \n\
- ldq $23,32($20) \n\
- xor $2,$4,$4 \n\
- ldq $24,32($21) \n\
- ldq $25,40($17) \n\
- \n\
- ldq $27,40($18) \n\
- ldq $28,40($19) \n\
- ldq $0,40($20) \n\
- xor $4,$5,$5 # 7 cycles from $5 load \n\
- \n\
- stq $5,24($17) \n\
- xor $6,$7,$7 # 7 cycles from $7 load \n\
- ldq $1,40($21) \n\
- ldq $2,48($17) \n\
- \n\
- ldq $3,48($18) \n\
- xor $7,$22,$22 # 7 cycles from $22 load \n\
- ldq $4,48($19) \n\
- xor $23,$24,$24 # 6 cycles from $24 load \n\
- \n\
- ldq $5,48($20) \n\
- xor $22,$24,$24 \n\
- ldq $6,48($21) \n\
- xor $25,$27,$27 # 7 cycles from $27 load \n\
- \n\
- stq $24,32($17) \n\
- xor $27,$28,$28 # 8 cycles from $28 load \n\
- ldq $7,56($17) \n\
- xor $0,$1,$1 # 6 cycles from $1 load \n\
- \n\
- ldq $22,56($18) \n\
- ldq $23,56($19) \n\
- ldq $24,56($20) \n\
- ldq $25,56($21) \n\
- \n\
- xor $28,$1,$1 \n\
- xor $2,$3,$3 # 9 cycles from $3 load \n\
- xor $3,$4,$4 # 9 cycles from $4 load \n\
- xor $5,$6,$6 # 8 cycles from $6 load \n\
- \n\
- stq $1,40($17) \n\
- xor $4,$6,$6 \n\
- xor $7,$22,$22 # 7 cycles from $22 load \n\
- xor $23,$24,$24 # 6 cycles from $24 load \n\
- \n\
- stq $6,48($17) \n\
- xor $22,$24,$24 \n\
- subq $16,1,$16 \n\
- xor $24,$25,$25 # 8 cycles from $25 load \n\
- \n\
- stq $25,56($17) \n\
- addq $21,64,$21 \n\
- addq $20,64,$20 \n\
- addq $19,64,$19 \n\
- \n\
- addq $18,64,$18 \n\
- addq $17,64,$17 \n\
- bgt $16,5b \n\
- ret \n\
- .end xor_alpha_5 \n\
- \n\
- .align 3 \n\
- .ent xor_alpha_prefetch_2 \n\
-xor_alpha_prefetch_2: \n\
- .prologue 0 \n\
- srl $16, 6, $16 \n\
- \n\
- ldq $31, 0($17) \n\
- ldq $31, 0($18) \n\
- \n\
- ldq $31, 64($17) \n\
- ldq $31, 64($18) \n\
- \n\
- ldq $31, 128($17) \n\
- ldq $31, 128($18) \n\
- \n\
- ldq $31, 192($17) \n\
- ldq $31, 192($18) \n\
- .align 4 \n\
-2: \n\
- ldq $0,0($17) \n\
- ldq $1,0($18) \n\
- ldq $2,8($17) \n\
- ldq $3,8($18) \n\
- \n\
- ldq $4,16($17) \n\
- ldq $5,16($18) \n\
- ldq $6,24($17) \n\
- ldq $7,24($18) \n\
- \n\
- ldq $19,32($17) \n\
- ldq $20,32($18) \n\
- ldq $21,40($17) \n\
- ldq $22,40($18) \n\
- \n\
- ldq $23,48($17) \n\
- ldq $24,48($18) \n\
- ldq $25,56($17) \n\
- ldq $27,56($18) \n\
- \n\
- ldq $31,256($17) \n\
- xor $0,$1,$0 # 8 cycles from $1 load \n\
- ldq $31,256($18) \n\
- xor $2,$3,$2 \n\
- \n\
- stq $0,0($17) \n\
- xor $4,$5,$4 \n\
- stq $2,8($17) \n\
- xor $6,$7,$6 \n\
- \n\
- stq $4,16($17) \n\
- xor $19,$20,$19 \n\
- stq $6,24($17) \n\
- xor $21,$22,$21 \n\
- \n\
- stq $19,32($17) \n\
- xor $23,$24,$23 \n\
- stq $21,40($17) \n\
- xor $25,$27,$25 \n\
- \n\
- stq $23,48($17) \n\
- subq $16,1,$16 \n\
- stq $25,56($17) \n\
- addq $17,64,$17 \n\
- \n\
- addq $18,64,$18 \n\
- bgt $16,2b \n\
- ret \n\
- .end xor_alpha_prefetch_2 \n\
- \n\
- .align 3 \n\
- .ent xor_alpha_prefetch_3 \n\
-xor_alpha_prefetch_3: \n\
- .prologue 0 \n\
- srl $16, 6, $16 \n\
- \n\
- ldq $31, 0($17) \n\
- ldq $31, 0($18) \n\
- ldq $31, 0($19) \n\
- \n\
- ldq $31, 64($17) \n\
- ldq $31, 64($18) \n\
- ldq $31, 64($19) \n\
- \n\
- ldq $31, 128($17) \n\
- ldq $31, 128($18) \n\
- ldq $31, 128($19) \n\
- \n\
- ldq $31, 192($17) \n\
- ldq $31, 192($18) \n\
- ldq $31, 192($19) \n\
- .align 4 \n\
-3: \n\
- ldq $0,0($17) \n\
- ldq $1,0($18) \n\
- ldq $2,0($19) \n\
- ldq $3,8($17) \n\
- \n\
- ldq $4,8($18) \n\
- ldq $6,16($17) \n\
- ldq $7,16($18) \n\
- ldq $21,24($17) \n\
- \n\
- ldq $22,24($18) \n\
- ldq $24,32($17) \n\
- ldq $25,32($18) \n\
- ldq $5,8($19) \n\
- \n\
- ldq $20,16($19) \n\
- ldq $23,24($19) \n\
- ldq $27,32($19) \n\
- nop \n\
- \n\
- xor $0,$1,$1 # 8 cycles from $0 load \n\
- xor $3,$4,$4 # 7 cycles from $4 load \n\
- xor $6,$7,$7 # 6 cycles from $7 load \n\
- xor $21,$22,$22 # 5 cycles from $22 load \n\
- \n\
- xor $1,$2,$2 # 9 cycles from $2 load \n\
- xor $24,$25,$25 # 5 cycles from $25 load \n\
- stq $2,0($17) \n\
- xor $4,$5,$5 # 6 cycles from $5 load \n\
- \n\
- stq $5,8($17) \n\
- xor $7,$20,$20 # 7 cycles from $20 load \n\
- stq $20,16($17) \n\
- xor $22,$23,$23 # 7 cycles from $23 load \n\
- \n\
- stq $23,24($17) \n\
- xor $25,$27,$27 # 7 cycles from $27 load \n\
- stq $27,32($17) \n\
- nop \n\
- \n\
- ldq $0,40($17) \n\
- ldq $1,40($18) \n\
- ldq $3,48($17) \n\
- ldq $4,48($18) \n\
- \n\
- ldq $6,56($17) \n\
- ldq $7,56($18) \n\
- ldq $2,40($19) \n\
- ldq $5,48($19) \n\
- \n\
- ldq $20,56($19) \n\
- ldq $31,256($17) \n\
- ldq $31,256($18) \n\
- ldq $31,256($19) \n\
- \n\
- xor $0,$1,$1 # 6 cycles from $1 load \n\
- xor $3,$4,$4 # 5 cycles from $4 load \n\
- xor $6,$7,$7 # 5 cycles from $7 load \n\
- xor $1,$2,$2 # 4 cycles from $2 load \n\
- \n\
- xor $4,$5,$5 # 5 cycles from $5 load \n\
- xor $7,$20,$20 # 4 cycles from $20 load \n\
- stq $2,40($17) \n\
- subq $16,1,$16 \n\
- \n\
- stq $5,48($17) \n\
- addq $19,64,$19 \n\
- stq $20,56($17) \n\
- addq $18,64,$18 \n\
- \n\
- addq $17,64,$17 \n\
- bgt $16,3b \n\
- ret \n\
- .end xor_alpha_prefetch_3 \n\
- \n\
- .align 3 \n\
- .ent xor_alpha_prefetch_4 \n\
-xor_alpha_prefetch_4: \n\
- .prologue 0 \n\
- srl $16, 6, $16 \n\
- \n\
- ldq $31, 0($17) \n\
- ldq $31, 0($18) \n\
- ldq $31, 0($19) \n\
- ldq $31, 0($20) \n\
- \n\
- ldq $31, 64($17) \n\
- ldq $31, 64($18) \n\
- ldq $31, 64($19) \n\
- ldq $31, 64($20) \n\
- \n\
- ldq $31, 128($17) \n\
- ldq $31, 128($18) \n\
- ldq $31, 128($19) \n\
- ldq $31, 128($20) \n\
- \n\
- ldq $31, 192($17) \n\
- ldq $31, 192($18) \n\
- ldq $31, 192($19) \n\
- ldq $31, 192($20) \n\
- .align 4 \n\
-4: \n\
- ldq $0,0($17) \n\
- ldq $1,0($18) \n\
- ldq $2,0($19) \n\
- ldq $3,0($20) \n\
- \n\
- ldq $4,8($17) \n\
- ldq $5,8($18) \n\
- ldq $6,8($19) \n\
- ldq $7,8($20) \n\
- \n\
- ldq $21,16($17) \n\
- ldq $22,16($18) \n\
- ldq $23,16($19) \n\
- ldq $24,16($20) \n\
- \n\
- ldq $25,24($17) \n\
- xor $0,$1,$1 # 6 cycles from $1 load \n\
- ldq $27,24($18) \n\
- xor $2,$3,$3 # 6 cycles from $3 load \n\
- \n\
- ldq $0,24($19) \n\
- xor $1,$3,$3 \n\
- ldq $1,24($20) \n\
- xor $4,$5,$5 # 7 cycles from $5 load \n\
- \n\
- stq $3,0($17) \n\
- xor $6,$7,$7 \n\
- xor $21,$22,$22 # 7 cycles from $22 load \n\
- xor $5,$7,$7 \n\
- \n\
- stq $7,8($17) \n\
- xor $23,$24,$24 # 7 cycles from $24 load \n\
- ldq $2,32($17) \n\
- xor $22,$24,$24 \n\
- \n\
- ldq $3,32($18) \n\
- ldq $4,32($19) \n\
- ldq $5,32($20) \n\
- xor $25,$27,$27 # 8 cycles from $27 load \n\
- \n\
- ldq $6,40($17) \n\
- ldq $7,40($18) \n\
- ldq $21,40($19) \n\
- ldq $22,40($20) \n\
- \n\
- stq $24,16($17) \n\
- xor $0,$1,$1 # 9 cycles from $1 load \n\
- xor $2,$3,$3 # 5 cycles from $3 load \n\
- xor $27,$1,$1 \n\
- \n\
- stq $1,24($17) \n\
- xor $4,$5,$5 # 5 cycles from $5 load \n\
- ldq $23,48($17) \n\
- xor $3,$5,$5 \n\
- \n\
- ldq $24,48($18) \n\
- ldq $25,48($19) \n\
- ldq $27,48($20) \n\
- ldq $0,56($17) \n\
- \n\
- ldq $1,56($18) \n\
- ldq $2,56($19) \n\
- ldq $3,56($20) \n\
- xor $6,$7,$7 # 8 cycles from $6 load \n\
- \n\
- ldq $31,256($17) \n\
- xor $21,$22,$22 # 8 cycles from $22 load \n\
- ldq $31,256($18) \n\
- xor $7,$22,$22 \n\
- \n\
- ldq $31,256($19) \n\
- xor $23,$24,$24 # 6 cycles from $24 load \n\
- ldq $31,256($20) \n\
- xor $25,$27,$27 # 6 cycles from $27 load \n\
- \n\
- stq $5,32($17) \n\
- xor $24,$27,$27 \n\
- xor $0,$1,$1 # 7 cycles from $1 load \n\
- xor $2,$3,$3 # 6 cycles from $3 load \n\
- \n\
- stq $22,40($17) \n\
- xor $1,$3,$3 \n\
- stq $27,48($17) \n\
- subq $16,1,$16 \n\
- \n\
- stq $3,56($17) \n\
- addq $20,64,$20 \n\
- addq $19,64,$19 \n\
- addq $18,64,$18 \n\
- \n\
- addq $17,64,$17 \n\
- bgt $16,4b \n\
- ret \n\
- .end xor_alpha_prefetch_4 \n\
- \n\
- .align 3 \n\
- .ent xor_alpha_prefetch_5 \n\
-xor_alpha_prefetch_5: \n\
- .prologue 0 \n\
- srl $16, 6, $16 \n\
- \n\
- ldq $31, 0($17) \n\
- ldq $31, 0($18) \n\
- ldq $31, 0($19) \n\
- ldq $31, 0($20) \n\
- ldq $31, 0($21) \n\
- \n\
- ldq $31, 64($17) \n\
- ldq $31, 64($18) \n\
- ldq $31, 64($19) \n\
- ldq $31, 64($20) \n\
- ldq $31, 64($21) \n\
- \n\
- ldq $31, 128($17) \n\
- ldq $31, 128($18) \n\
- ldq $31, 128($19) \n\
- ldq $31, 128($20) \n\
- ldq $31, 128($21) \n\
- \n\
- ldq $31, 192($17) \n\
- ldq $31, 192($18) \n\
- ldq $31, 192($19) \n\
- ldq $31, 192($20) \n\
- ldq $31, 192($21) \n\
- .align 4 \n\
-5: \n\
- ldq $0,0($17) \n\
- ldq $1,0($18) \n\
- ldq $2,0($19) \n\
- ldq $3,0($20) \n\
- \n\
- ldq $4,0($21) \n\
- ldq $5,8($17) \n\
- ldq $6,8($18) \n\
- ldq $7,8($19) \n\
- \n\
- ldq $22,8($20) \n\
- ldq $23,8($21) \n\
- ldq $24,16($17) \n\
- ldq $25,16($18) \n\
- \n\
- ldq $27,16($19) \n\
- xor $0,$1,$1 # 6 cycles from $1 load \n\
- ldq $28,16($20) \n\
- xor $2,$3,$3 # 6 cycles from $3 load \n\
- \n\
- ldq $0,16($21) \n\
- xor $1,$3,$3 \n\
- ldq $1,24($17) \n\
- xor $3,$4,$4 # 7 cycles from $4 load \n\
- \n\
- stq $4,0($17) \n\
- xor $5,$6,$6 # 7 cycles from $6 load \n\
- xor $7,$22,$22 # 7 cycles from $22 load \n\
- xor $6,$23,$23 # 7 cycles from $23 load \n\
- \n\
- ldq $2,24($18) \n\
- xor $22,$23,$23 \n\
- ldq $3,24($19) \n\
- xor $24,$25,$25 # 8 cycles from $25 load \n\
- \n\
- stq $23,8($17) \n\
- xor $25,$27,$27 # 8 cycles from $27 load \n\
- ldq $4,24($20) \n\
- xor $28,$0,$0 # 7 cycles from $0 load \n\
- \n\
- ldq $5,24($21) \n\
- xor $27,$0,$0 \n\
- ldq $6,32($17) \n\
- ldq $7,32($18) \n\
- \n\
- stq $0,16($17) \n\
- xor $1,$2,$2 # 6 cycles from $2 load \n\
- ldq $22,32($19) \n\
- xor $3,$4,$4 # 4 cycles from $4 load \n\
- \n\
- ldq $23,32($20) \n\
- xor $2,$4,$4 \n\
- ldq $24,32($21) \n\
- ldq $25,40($17) \n\
- \n\
- ldq $27,40($18) \n\
- ldq $28,40($19) \n\
- ldq $0,40($20) \n\
- xor $4,$5,$5 # 7 cycles from $5 load \n\
- \n\
- stq $5,24($17) \n\
- xor $6,$7,$7 # 7 cycles from $7 load \n\
- ldq $1,40($21) \n\
- ldq $2,48($17) \n\
- \n\
- ldq $3,48($18) \n\
- xor $7,$22,$22 # 7 cycles from $22 load \n\
- ldq $4,48($19) \n\
- xor $23,$24,$24 # 6 cycles from $24 load \n\
- \n\
- ldq $5,48($20) \n\
- xor $22,$24,$24 \n\
- ldq $6,48($21) \n\
- xor $25,$27,$27 # 7 cycles from $27 load \n\
- \n\
- stq $24,32($17) \n\
- xor $27,$28,$28 # 8 cycles from $28 load \n\
- ldq $7,56($17) \n\
- xor $0,$1,$1 # 6 cycles from $1 load \n\
- \n\
- ldq $22,56($18) \n\
- ldq $23,56($19) \n\
- ldq $24,56($20) \n\
- ldq $25,56($21) \n\
- \n\
- ldq $31,256($17) \n\
- xor $28,$1,$1 \n\
- ldq $31,256($18) \n\
- xor $2,$3,$3 # 9 cycles from $3 load \n\
- \n\
- ldq $31,256($19) \n\
- xor $3,$4,$4 # 9 cycles from $4 load \n\
- ldq $31,256($20) \n\
- xor $5,$6,$6 # 8 cycles from $6 load \n\
- \n\
- stq $1,40($17) \n\
- xor $4,$6,$6 \n\
- xor $7,$22,$22 # 7 cycles from $22 load \n\
- xor $23,$24,$24 # 6 cycles from $24 load \n\
- \n\
- stq $6,48($17) \n\
- xor $22,$24,$24 \n\
- ldq $31,256($21) \n\
- xor $24,$25,$25 # 8 cycles from $25 load \n\
- \n\
- stq $25,56($17) \n\
- subq $16,1,$16 \n\
- addq $21,64,$21 \n\
- addq $20,64,$20 \n\
- \n\
- addq $19,64,$19 \n\
- addq $18,64,$18 \n\
- addq $17,64,$17 \n\
- bgt $16,5b \n\
- \n\
- ret \n\
- .end xor_alpha_prefetch_5 \n\
-");
-
-static struct xor_block_template xor_block_alpha = {
- .name = "alpha",
- .do_2 = xor_alpha_2,
- .do_3 = xor_alpha_3,
- .do_4 = xor_alpha_4,
- .do_5 = xor_alpha_5,
-};
-
-static struct xor_block_template xor_block_alpha_prefetch = {
- .name = "alpha prefetch",
- .do_2 = xor_alpha_prefetch_2,
- .do_3 = xor_alpha_prefetch_3,
- .do_4 = xor_alpha_prefetch_4,
- .do_5 = xor_alpha_prefetch_5,
-};
-
-/* For grins, also test the generic routines. */
+#include <asm/special_insns.h>
#include <asm-generic/xor.h>
+extern struct xor_block_template xor_block_alpha;
+extern struct xor_block_template xor_block_alpha_prefetch;
+
/*
* Force the use of alpha_prefetch if EV6, as it is significantly faster in the
* cold cache case.
diff --git a/lib/raid/xor/Makefile b/lib/raid/xor/Makefile
index 89a944c9f990..6d03c27c37c7 100644
--- a/lib/raid/xor/Makefile
+++ b/lib/raid/xor/Makefile
@@ -7,3 +7,5 @@ xor-y += xor-8regs.o
xor-y += xor-32regs.o
xor-y += xor-8regs-prefetch.o
xor-y += xor-32regs-prefetch.o
+
+xor-$(CONFIG_ALPHA) += alpha/xor.o
diff --git a/lib/raid/xor/alpha/xor.c b/lib/raid/xor/alpha/xor.c
new file mode 100644
index 000000000000..0964ac420604
--- /dev/null
+++ b/lib/raid/xor/alpha/xor.c
@@ -0,0 +1,849 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Optimized XOR parity functions for alpha EV5 and EV6
+ */
+#include <linux/raid/xor_impl.h>
+#include <asm/xor.h>
+
+extern void
+xor_alpha_2(unsigned long bytes, unsigned long * __restrict p1,
+ const unsigned long * __restrict p2);
+extern void
+xor_alpha_3(unsigned long bytes, unsigned long * __restrict p1,
+ const unsigned long * __restrict p2,
+ const unsigned long * __restrict p3);
+extern void
+xor_alpha_4(unsigned long bytes, unsigned long * __restrict p1,
+ const unsigned long * __restrict p2,
+ const unsigned long * __restrict p3,
+ const unsigned long * __restrict p4);
+extern void
+xor_alpha_5(unsigned long bytes, unsigned long * __restrict p1,
+ const unsigned long * __restrict p2,
+ const unsigned long * __restrict p3,
+ const unsigned long * __restrict p4,
+ const unsigned long * __restrict p5);
+
+extern void
+xor_alpha_prefetch_2(unsigned long bytes, unsigned long * __restrict p1,
+ const unsigned long * __restrict p2);
+extern void
+xor_alpha_prefetch_3(unsigned long bytes, unsigned long * __restrict p1,
+ const unsigned long * __restrict p2,
+ const unsigned long * __restrict p3);
+extern void
+xor_alpha_prefetch_4(unsigned long bytes, unsigned long * __restrict p1,
+ const unsigned long * __restrict p2,
+ const unsigned long * __restrict p3,
+ const unsigned long * __restrict p4);
+extern void
+xor_alpha_prefetch_5(unsigned long bytes, unsigned long * __restrict p1,
+ const unsigned long * __restrict p2,
+ const unsigned long * __restrict p3,
+ const unsigned long * __restrict p4,
+ const unsigned long * __restrict p5);
+
+asm(" \n\
+ .text \n\
+ .align 3 \n\
+ .ent xor_alpha_2 \n\
+xor_alpha_2: \n\
+ .prologue 0 \n\
+ srl $16, 6, $16 \n\
+ .align 4 \n\
+2: \n\
+ ldq $0,0($17) \n\
+ ldq $1,0($18) \n\
+ ldq $2,8($17) \n\
+ ldq $3,8($18) \n\
+ \n\
+ ldq $4,16($17) \n\
+ ldq $5,16($18) \n\
+ ldq $6,24($17) \n\
+ ldq $7,24($18) \n\
+ \n\
+ ldq $19,32($17) \n\
+ ldq $20,32($18) \n\
+ ldq $21,40($17) \n\
+ ldq $22,40($18) \n\
+ \n\
+ ldq $23,48($17) \n\
+ ldq $24,48($18) \n\
+ ldq $25,56($17) \n\
+ xor $0,$1,$0 # 7 cycles from $1 load \n\
+ \n\
+ ldq $27,56($18) \n\
+ xor $2,$3,$2 \n\
+ stq $0,0($17) \n\
+ xor $4,$5,$4 \n\
+ \n\
+ stq $2,8($17) \n\
+ xor $6,$7,$6 \n\
+ stq $4,16($17) \n\
+ xor $19,$20,$19 \n\
+ \n\
+ stq $6,24($17) \n\
+ xor $21,$22,$21 \n\
+ stq $19,32($17) \n\
+ xor $23,$24,$23 \n\
+ \n\
+ stq $21,40($17) \n\
+ xor $25,$27,$25 \n\
+ stq $23,48($17) \n\
+ subq $16,1,$16 \n\
+ \n\
+ stq $25,56($17) \n\
+ addq $17,64,$17 \n\
+ addq $18,64,$18 \n\
+ bgt $16,2b \n\
+ \n\
+ ret \n\
+ .end xor_alpha_2 \n\
+ \n\
+ .align 3 \n\
+ .ent xor_alpha_3 \n\
+xor_alpha_3: \n\
+ .prologue 0 \n\
+ srl $16, 6, $16 \n\
+ .align 4 \n\
+3: \n\
+ ldq $0,0($17) \n\
+ ldq $1,0($18) \n\
+ ldq $2,0($19) \n\
+ ldq $3,8($17) \n\
+ \n\
+ ldq $4,8($18) \n\
+ ldq $6,16($17) \n\
+ ldq $7,16($18) \n\
+ ldq $21,24($17) \n\
+ \n\
+ ldq $22,24($18) \n\
+ ldq $24,32($17) \n\
+ ldq $25,32($18) \n\
+ ldq $5,8($19) \n\
+ \n\
+ ldq $20,16($19) \n\
+ ldq $23,24($19) \n\
+ ldq $27,32($19) \n\
+ nop \n\
+ \n\
+ xor $0,$1,$1 # 8 cycles from $0 load \n\
+ xor $3,$4,$4 # 6 cycles from $4 load \n\
+ xor $6,$7,$7 # 6 cycles from $7 load \n\
+ xor $21,$22,$22 # 5 cycles from $22 load \n\
+ \n\
+ xor $1,$2,$2 # 9 cycles from $2 load \n\
+ xor $24,$25,$25 # 5 cycles from $25 load \n\
+ stq $2,0($17) \n\
+ xor $4,$5,$5 # 6 cycles from $5 load \n\
+ \n\
+ stq $5,8($17) \n\
+ xor $7,$20,$20 # 7 cycles from $20 load \n\
+ stq $20,16($17) \n\
+ xor $22,$23,$23 # 7 cycles from $23 load \n\
+ \n\
+ stq $23,24($17) \n\
+ xor $25,$27,$27 # 7 cycles from $27 load \n\
+ stq $27,32($17) \n\
+ nop \n\
+ \n\
+ ldq $0,40($17) \n\
+ ldq $1,40($18) \n\
+ ldq $3,48($17) \n\
+ ldq $4,48($18) \n\
+ \n\
+ ldq $6,56($17) \n\
+ ldq $7,56($18) \n\
+ ldq $2,40($19) \n\
+ ldq $5,48($19) \n\
+ \n\
+ ldq $20,56($19) \n\
+ xor $0,$1,$1 # 4 cycles from $1 load \n\
+ xor $3,$4,$4 # 5 cycles from $4 load \n\
+ xor $6,$7,$7 # 5 cycles from $7 load \n\
+ \n\
+ xor $1,$2,$2 # 4 cycles from $2 load \n\
+ xor $4,$5,$5 # 5 cycles from $5 load \n\
+ stq $2,40($17) \n\
+ xor $7,$20,$20 # 4 cycles from $20 load \n\
+ \n\
+ stq $5,48($17) \n\
+ subq $16,1,$16 \n\
+ stq $20,56($17) \n\
+ addq $19,64,$19 \n\
+ \n\
+ addq $18,64,$18 \n\
+ addq $17,64,$17 \n\
+ bgt $16,3b \n\
+ ret \n\
+ .end xor_alpha_3 \n\
+ \n\
+ .align 3 \n\
+ .ent xor_alpha_4 \n\
+xor_alpha_4: \n\
+ .prologue 0 \n\
+ srl $16, 6, $16 \n\
+ .align 4 \n\
+4: \n\
+ ldq $0,0($17) \n\
+ ldq $1,0($18) \n\
+ ldq $2,0($19) \n\
+ ldq $3,0($20) \n\
+ \n\
+ ldq $4,8($17) \n\
+ ldq $5,8($18) \n\
+ ldq $6,8($19) \n\
+ ldq $7,8($20) \n\
+ \n\
+ ldq $21,16($17) \n\
+ ldq $22,16($18) \n\
+ ldq $23,16($19) \n\
+ ldq $24,16($20) \n\
+ \n\
+ ldq $25,24($17) \n\
+ xor $0,$1,$1 # 6 cycles from $1 load \n\
+ ldq $27,24($18) \n\
+ xor $2,$3,$3 # 6 cycles from $3 load \n\
+ \n\
+ ldq $0,24($19) \n\
+ xor $1,$3,$3 \n\
+ ldq $1,24($20) \n\
+ xor $4,$5,$5 # 7 cycles from $5 load \n\
+ \n\
+ stq $3,0($17) \n\
+ xor $6,$7,$7 \n\
+ xor $21,$22,$22 # 7 cycles from $22 load \n\
+ xor $5,$7,$7 \n\
+ \n\
+ stq $7,8($17) \n\
+ xor $23,$24,$24 # 7 cycles from $24 load \n\
+ ldq $2,32($17) \n\
+ xor $22,$24,$24 \n\
+ \n\
+ ldq $3,32($18) \n\
+ ldq $4,32($19) \n\
+ ldq $5,32($20) \n\
+ xor $25,$27,$27 # 8 cycles from $27 load \n\
+ \n\
+ ldq $6,40($17) \n\
+ ldq $7,40($18) \n\
+ ldq $21,40($19) \n\
+ ldq $22,40($20) \n\
+ \n\
+ stq $24,16($17) \n\
+ xor $0,$1,$1 # 9 cycles from $1 load \n\
+ xor $2,$3,$3 # 5 cycles from $3 load \n\
+ xor $27,$1,$1 \n\
+ \n\
+ stq $1,24($17) \n\
+ xor $4,$5,$5 # 5 cycles from $5 load \n\
+ ldq $23,48($17) \n\
+ ldq $24,48($18) \n\
+ \n\
+ ldq $25,48($19) \n\
+ xor $3,$5,$5 \n\
+ ldq $27,48($20) \n\
+ ldq $0,56($17) \n\
+ \n\
+ ldq $1,56($18) \n\
+ ldq $2,56($19) \n\
+ xor $6,$7,$7 # 8 cycles from $6 load \n\
+ ldq $3,56($20) \n\
+ \n\
+ stq $5,32($17) \n\
+ xor $21,$22,$22 # 8 cycles from $22 load \n\
+ xor $7,$22,$22 \n\
+ xor $23,$24,$24 # 5 cycles from $24 load \n\
+ \n\
+ stq $22,40($17) \n\
+ xor $25,$27,$27 # 5 cycles from $27 load \n\
+ xor $24,$27,$27 \n\
+ xor $0,$1,$1 # 5 cycles from $1 load \n\
+ \n\
+ stq $27,48($17) \n\
+ xor $2,$3,$3 # 4 cycles from $3 load \n\
+ xor $1,$3,$3 \n\
+ subq $16,1,$16 \n\
+ \n\
+ stq $3,56($17) \n\
+ addq $20,64,$20 \n\
+ addq $19,64,$19 \n\
+ addq $18,64,$18 \n\
+ \n\
+ addq $17,64,$17 \n\
+ bgt $16,4b \n\
+ ret \n\
+ .end xor_alpha_4 \n\
+ \n\
+ .align 3 \n\
+ .ent xor_alpha_5 \n\
+xor_alpha_5: \n\
+ .prologue 0 \n\
+ srl $16, 6, $16 \n\
+ .align 4 \n\
+5: \n\
+ ldq $0,0($17) \n\
+ ldq $1,0($18) \n\
+ ldq $2,0($19) \n\
+ ldq $3,0($20) \n\
+ \n\
+ ldq $4,0($21) \n\
+ ldq $5,8($17) \n\
+ ldq $6,8($18) \n\
+ ldq $7,8($19) \n\
+ \n\
+ ldq $22,8($20) \n\
+ ldq $23,8($21) \n\
+ ldq $24,16($17) \n\
+ ldq $25,16($18) \n\
+ \n\
+ ldq $27,16($19) \n\
+ xor $0,$1,$1 # 6 cycles from $1 load \n\
+ ldq $28,16($20) \n\
+ xor $2,$3,$3 # 6 cycles from $3 load \n\
+ \n\
+ ldq $0,16($21) \n\
+ xor $1,$3,$3 \n\
+ ldq $1,24($17) \n\
+ xor $3,$4,$4 # 7 cycles from $4 load \n\
+ \n\
+ stq $4,0($17) \n\
+ xor $5,$6,$6 # 7 cycles from $6 load \n\
+ xor $7,$22,$22 # 7 cycles from $22 load \n\
+ xor $6,$23,$23 # 7 cycles from $23 load \n\
+ \n\
+ ldq $2,24($18) \n\
+ xor $22,$23,$23 \n\
+ ldq $3,24($19) \n\
+ xor $24,$25,$25 # 8 cycles from $25 load \n\
+ \n\
+ stq $23,8($17) \n\
+ xor $25,$27,$27 # 8 cycles from $27 load \n\
+ ldq $4,24($20) \n\
+ xor $28,$0,$0 # 7 cycles from $0 load \n\
+ \n\
+ ldq $5,24($21) \n\
+ xor $27,$0,$0 \n\
+ ldq $6,32($17) \n\
+ ldq $7,32($18) \n\
+ \n\
+ stq $0,16($17) \n\
+ xor $1,$2,$2 # 6 cycles from $2 load \n\
+ ldq $22,32($19) \n\
+ xor $3,$4,$4 # 4 cycles from $4 load \n\
+ \n\
+ ldq $23,32($20) \n\
+ xor $2,$4,$4 \n\
+ ldq $24,32($21) \n\
+ ldq $25,40($17) \n\
+ \n\
+ ldq $27,40($18) \n\
+ ldq $28,40($19) \n\
+ ldq $0,40($20) \n\
+ xor $4,$5,$5 # 7 cycles from $5 load \n\
+ \n\
+ stq $5,24($17) \n\
+ xor $6,$7,$7 # 7 cycles from $7 load \n\
+ ldq $1,40($21) \n\
+ ldq $2,48($17) \n\
+ \n\
+ ldq $3,48($18) \n\
+ xor $7,$22,$22 # 7 cycles from $22 load \n\
+ ldq $4,48($19) \n\
+ xor $23,$24,$24 # 6 cycles from $24 load \n\
+ \n\
+ ldq $5,48($20) \n\
+ xor $22,$24,$24 \n\
+ ldq $6,48($21) \n\
+ xor $25,$27,$27 # 7 cycles from $27 load \n\
+ \n\
+ stq $24,32($17) \n\
+ xor $27,$28,$28 # 8 cycles from $28 load \n\
+ ldq $7,56($17) \n\
+ xor $0,$1,$1 # 6 cycles from $1 load \n\
+ \n\
+ ldq $22,56($18) \n\
+ ldq $23,56($19) \n\
+ ldq $24,56($20) \n\
+ ldq $25,56($21) \n\
+ \n\
+ xor $28,$1,$1 \n\
+ xor $2,$3,$3 # 9 cycles from $3 load \n\
+ xor $3,$4,$4 # 9 cycles from $4 load \n\
+ xor $5,$6,$6 # 8 cycles from $6 load \n\
+ \n\
+ stq $1,40($17) \n\
+ xor $4,$6,$6 \n\
+ xor $7,$22,$22 # 7 cycles from $22 load \n\
+ xor $23,$24,$24 # 6 cycles from $24 load \n\
+ \n\
+ stq $6,48($17) \n\
+ xor $22,$24,$24 \n\
+ subq $16,1,$16 \n\
+ xor $24,$25,$25 # 8 cycles from $25 load \n\
+ \n\
+ stq $25,56($17) \n\
+ addq $21,64,$21 \n\
+ addq $20,64,$20 \n\
+ addq $19,64,$19 \n\
+ \n\
+ addq $18,64,$18 \n\
+ addq $17,64,$17 \n\
+ bgt $16,5b \n\
+ ret \n\
+ .end xor_alpha_5 \n\
+ \n\
+ .align 3 \n\
+ .ent xor_alpha_prefetch_2 \n\
+xor_alpha_prefetch_2: \n\
+ .prologue 0 \n\
+ srl $16, 6, $16 \n\
+ \n\
+ ldq $31, 0($17) \n\
+ ldq $31, 0($18) \n\
+ \n\
+ ldq $31, 64($17) \n\
+ ldq $31, 64($18) \n\
+ \n\
+ ldq $31, 128($17) \n\
+ ldq $31, 128($18) \n\
+ \n\
+ ldq $31, 192($17) \n\
+ ldq $31, 192($18) \n\
+ .align 4 \n\
+2: \n\
+ ldq $0,0($17) \n\
+ ldq $1,0($18) \n\
+ ldq $2,8($17) \n\
+ ldq $3,8($18) \n\
+ \n\
+ ldq $4,16($17) \n\
+ ldq $5,16($18) \n\
+ ldq $6,24($17) \n\
+ ldq $7,24($18) \n\
+ \n\
+ ldq $19,32($17) \n\
+ ldq $20,32($18) \n\
+ ldq $21,40($17) \n\
+ ldq $22,40($18) \n\
+ \n\
+ ldq $23,48($17) \n\
+ ldq $24,48($18) \n\
+ ldq $25,56($17) \n\
+ ldq $27,56($18) \n\
+ \n\
+ ldq $31,256($17) \n\
+ xor $0,$1,$0 # 8 cycles from $1 load \n\
+ ldq $31,256($18) \n\
+ xor $2,$3,$2 \n\
+ \n\
+ stq $0,0($17) \n\
+ xor $4,$5,$4 \n\
+ stq $2,8($17) \n\
+ xor $6,$7,$6 \n\
+ \n\
+ stq $4,16($17) \n\
+ xor $19,$20,$19 \n\
+ stq $6,24($17) \n\
+ xor $21,$22,$21 \n\
+ \n\
+ stq $19,32($17) \n\
+ xor $23,$24,$23 \n\
+ stq $21,40($17) \n\
+ xor $25,$27,$25 \n\
+ \n\
+ stq $23,48($17) \n\
+ subq $16,1,$16 \n\
+ stq $25,56($17) \n\
+ addq $17,64,$17 \n\
+ \n\
+ addq $18,64,$18 \n\
+ bgt $16,2b \n\
+ ret \n\
+ .end xor_alpha_prefetch_2 \n\
+ \n\
+ .align 3 \n\
+ .ent xor_alpha_prefetch_3 \n\
+xor_alpha_prefetch_3: \n\
+ .prologue 0 \n\
+ srl $16, 6, $16 \n\
+ \n\
+ ldq $31, 0($17) \n\
+ ldq $31, 0($18) \n\
+ ldq $31, 0($19) \n\
+ \n\
+ ldq $31, 64($17) \n\
+ ldq $31, 64($18) \n\
+ ldq $31, 64($19) \n\
+ \n\
+ ldq $31, 128($17) \n\
+ ldq $31, 128($18) \n\
+ ldq $31, 128($19) \n\
+ \n\
+ ldq $31, 192($17) \n\
+ ldq $31, 192($18) \n\
+ ldq $31, 192($19) \n\
+ .align 4 \n\
+3: \n\
+ ldq $0,0($17) \n\
+ ldq $1,0($18) \n\
+ ldq $2,0($19) \n\
+ ldq $3,8($17) \n\
+ \n\
+ ldq $4,8($18) \n\
+ ldq $6,16($17) \n\
+ ldq $7,16($18) \n\
+ ldq $21,24($17) \n\
+ \n\
+ ldq $22,24($18) \n\
+ ldq $24,32($17) \n\
+ ldq $25,32($18) \n\
+ ldq $5,8($19) \n\
+ \n\
+ ldq $20,16($19) \n\
+ ldq $23,24($19) \n\
+ ldq $27,32($19) \n\
+ nop \n\
+ \n\
+ xor $0,$1,$1 # 8 cycles from $0 load \n\
+ xor $3,$4,$4 # 7 cycles from $4 load \n\
+ xor $6,$7,$7 # 6 cycles from $7 load \n\
+ xor $21,$22,$22 # 5 cycles from $22 load \n\
+ \n\
+ xor $1,$2,$2 # 9 cycles from $2 load \n\
+ xor $24,$25,$25 # 5 cycles from $25 load \n\
+ stq $2,0($17) \n\
+ xor $4,$5,$5 # 6 cycles from $5 load \n\
+ \n\
+ stq $5,8($17) \n\
+ xor $7,$20,$20 # 7 cycles from $20 load \n\
+ stq $20,16($17) \n\
+ xor $22,$23,$23 # 7 cycles from $23 load \n\
+ \n\
+ stq $23,24($17) \n\
+ xor $25,$27,$27 # 7 cycles from $27 load \n\
+ stq $27,32($17) \n\
+ nop \n\
+ \n\
+ ldq $0,40($17) \n\
+ ldq $1,40($18) \n\
+ ldq $3,48($17) \n\
+ ldq $4,48($18) \n\
+ \n\
+ ldq $6,56($17) \n\
+ ldq $7,56($18) \n\
+ ldq $2,40($19) \n\
+ ldq $5,48($19) \n\
+ \n\
+ ldq $20,56($19) \n\
+ ldq $31,256($17) \n\
+ ldq $31,256($18) \n\
+ ldq $31,256($19) \n\
+ \n\
+ xor $0,$1,$1 # 6 cycles from $1 load \n\
+ xor $3,$4,$4 # 5 cycles from $4 load \n\
+ xor $6,$7,$7 # 5 cycles from $7 load \n\
+ xor $1,$2,$2 # 4 cycles from $2 load \n\
+ \n\
+ xor $4,$5,$5 # 5 cycles from $5 load \n\
+ xor $7,$20,$20 # 4 cycles from $20 load \n\
+ stq $2,40($17) \n\
+ subq $16,1,$16 \n\
+ \n\
+ stq $5,48($17) \n\
+ addq $19,64,$19 \n\
+ stq $20,56($17) \n\
+ addq $18,64,$18 \n\
+ \n\
+ addq $17,64,$17 \n\
+ bgt $16,3b \n\
+ ret \n\
+ .end xor_alpha_prefetch_3 \n\
+ \n\
+ .align 3 \n\
+ .ent xor_alpha_prefetch_4 \n\
+xor_alpha_prefetch_4: \n\
+ .prologue 0 \n\
+ srl $16, 6, $16 \n\
+ \n\
+ ldq $31, 0($17) \n\
+ ldq $31, 0($18) \n\
+ ldq $31, 0($19) \n\
+ ldq $31, 0($20) \n\
+ \n\
+ ldq $31, 64($17) \n\
+ ldq $31, 64($18) \n\
+ ldq $31, 64($19) \n\
+ ldq $31, 64($20) \n\
+ \n\
+ ldq $31, 128($17) \n\
+ ldq $31, 128($18) \n\
+ ldq $31, 128($19) \n\
+ ldq $31, 128($20) \n\
+ \n\
+ ldq $31, 192($17) \n\
+ ldq $31, 192($18) \n\
+ ldq $31, 192($19) \n\
+ ldq $31, 192($20) \n\
+ .align 4 \n\
+4: \n\
+ ldq $0,0($17) \n\
+ ldq $1,0($18) \n\
+ ldq $2,0($19) \n\
+ ldq $3,0($20) \n\
+ \n\
+ ldq $4,8($17) \n\
+ ldq $5,8($18) \n\
+ ldq $6,8($19) \n\
+ ldq $7,8($20) \n\
+ \n\
+ ldq $21,16($17) \n\
+ ldq $22,16($18) \n\
+ ldq $23,16($19) \n\
+ ldq $24,16($20) \n\
+ \n\
+ ldq $25,24($17) \n\
+ xor $0,$1,$1 # 6 cycles from $1 load \n\
+ ldq $27,24($18) \n\
+ xor $2,$3,$3 # 6 cycles from $3 load \n\
+ \n\
+ ldq $0,24($19) \n\
+ xor $1,$3,$3 \n\
+ ldq $1,24($20) \n\
+ xor $4,$5,$5 # 7 cycles from $5 load \n\
+ \n\
+ stq $3,0($17) \n\
+ xor $6,$7,$7 \n\
+ xor $21,$22,$22 # 7 cycles from $22 load \n\
+ xor $5,$7,$7 \n\
+ \n\
+ stq $7,8($17) \n\
+ xor $23,$24,$24 # 7 cycles from $24 load \n\
+ ldq $2,32($17) \n\
+ xor $22,$24,$24 \n\
+ \n\
+ ldq $3,32($18) \n\
+ ldq $4,32($19) \n\
+ ldq $5,32($20) \n\
+ xor $25,$27,$27 # 8 cycles from $27 load \n\
+ \n\
+ ldq $6,40($17) \n\
+ ldq $7,40($18) \n\
+ ldq $21,40($19) \n\
+ ldq $22,40($20) \n\
+ \n\
+ stq $24,16($17) \n\
+ xor $0,$1,$1 # 9 cycles from $1 load \n\
+ xor $2,$3,$3 # 5 cycles from $3 load \n\
+ xor $27,$1,$1 \n\
+ \n\
+ stq $1,24($17) \n\
+ xor $4,$5,$5 # 5 cycles from $5 load \n\
+ ldq $23,48($17) \n\
+ xor $3,$5,$5 \n\
+ \n\
+ ldq $24,48($18) \n\
+ ldq $25,48($19) \n\
+ ldq $27,48($20) \n\
+ ldq $0,56($17) \n\
+ \n\
+ ldq $1,56($18) \n\
+ ldq $2,56($19) \n\
+ ldq $3,56($20) \n\
+ xor $6,$7,$7 # 8 cycles from $6 load \n\
+ \n\
+ ldq $31,256($17) \n\
+ xor $21,$22,$22 # 8 cycles from $22 load \n\
+ ldq $31,256($18) \n\
+ xor $7,$22,$22 \n\
+ \n\
+ ldq $31,256($19) \n\
+ xor $23,$24,$24 # 6 cycles from $24 load \n\
+ ldq $31,256($20) \n\
+ xor $25,$27,$27 # 6 cycles from $27 load \n\
+ \n\
+ stq $5,32($17) \n\
+ xor $24,$27,$27 \n\
+ xor $0,$1,$1 # 7 cycles from $1 load \n\
+ xor $2,$3,$3 # 6 cycles from $3 load \n\
+ \n\
+ stq $22,40($17) \n\
+ xor $1,$3,$3 \n\
+ stq $27,48($17) \n\
+ subq $16,1,$16 \n\
+ \n\
+ stq $3,56($17) \n\
+ addq $20,64,$20 \n\
+ addq $19,64,$19 \n\
+ addq $18,64,$18 \n\
+ \n\
+ addq $17,64,$17 \n\
+ bgt $16,4b \n\
+ ret \n\
+ .end xor_alpha_prefetch_4 \n\
+ \n\
+ .align 3 \n\
+ .ent xor_alpha_prefetch_5 \n\
+xor_alpha_prefetch_5: \n\
+ .prologue 0 \n\
+ srl $16, 6, $16 \n\
+ \n\
+ ldq $31, 0($17) \n\
+ ldq $31, 0($18) \n\
+ ldq $31, 0($19) \n\
+ ldq $31, 0($20) \n\
+ ldq $31, 0($21) \n\
+ \n\
+ ldq $31, 64($17) \n\
+ ldq $31, 64($18) \n\
+ ldq $31, 64($19) \n\
+ ldq $31, 64($20) \n\
+ ldq $31, 64($21) \n\
+ \n\
+ ldq $31, 128($17) \n\
+ ldq $31, 128($18) \n\
+ ldq $31, 128($19) \n\
+ ldq $31, 128($20) \n\
+ ldq $31, 128($21) \n\
+ \n\
+ ldq $31, 192($17) \n\
+ ldq $31, 192($18) \n\
+ ldq $31, 192($19) \n\
+ ldq $31, 192($20) \n\
+ ldq $31, 192($21) \n\
+ .align 4 \n\
+5: \n\
+ ldq $0,0($17) \n\
+ ldq $1,0($18) \n\
+ ldq $2,0($19) \n\
+ ldq $3,0($20) \n\
+ \n\
+ ldq $4,0($21) \n\
+ ldq $5,8($17) \n\
+ ldq $6,8($18) \n\
+ ldq $7,8($19) \n\
+ \n\
+ ldq $22,8($20) \n\
+ ldq $23,8($21) \n\
+ ldq $24,16($17) \n\
+ ldq $25,16($18) \n\
+ \n\
+ ldq $27,16($19) \n\
+ xor $0,$1,$1 # 6 cycles from $1 load \n\
+ ldq $28,16($20) \n\
+ xor $2,$3,$3 # 6 cycles from $3 load \n\
+ \n\
+ ldq $0,16($21) \n\
+ xor $1,$3,$3 \n\
+ ldq $1,24($17) \n\
+ xor $3,$4,$4 # 7 cycles from $4 load \n\
+ \n\
+ stq $4,0($17) \n\
+ xor $5,$6,$6 # 7 cycles from $6 load \n\
+ xor $7,$22,$22 # 7 cycles from $22 load \n\
+ xor $6,$23,$23 # 7 cycles from $23 load \n\
+ \n\
+ ldq $2,24($18) \n\
+ xor $22,$23,$23 \n\
+ ldq $3,24($19) \n\
+ xor $24,$25,$25 # 8 cycles from $25 load \n\
+ \n\
+ stq $23,8($17) \n\
+ xor $25,$27,$27 # 8 cycles from $27 load \n\
+ ldq $4,24($20) \n\
+ xor $28,$0,$0 # 7 cycles from $0 load \n\
+ \n\
+ ldq $5,24($21) \n\
+ xor $27,$0,$0 \n\
+ ldq $6,32($17) \n\
+ ldq $7,32($18) \n\
+ \n\
+ stq $0,16($17) \n\
+ xor $1,$2,$2 # 6 cycles from $2 load \n\
+ ldq $22,32($19) \n\
+ xor $3,$4,$4 # 4 cycles from $4 load \n\
+ \n\
+ ldq $23,32($20) \n\
+ xor $2,$4,$4 \n\
+ ldq $24,32($21) \n\
+ ldq $25,40($17) \n\
+ \n\
+ ldq $27,40($18) \n\
+ ldq $28,40($19) \n\
+ ldq $0,40($20) \n\
+ xor $4,$5,$5 # 7 cycles from $5 load \n\
+ \n\
+ stq $5,24($17) \n\
+ xor $6,$7,$7 # 7 cycles from $7 load \n\
+ ldq $1,40($21) \n\
+ ldq $2,48($17) \n\
+ \n\
+ ldq $3,48($18) \n\
+ xor $7,$22,$22 # 7 cycles from $22 load \n\
+ ldq $4,48($19) \n\
+ xor $23,$24,$24 # 6 cycles from $24 load \n\
+ \n\
+ ldq $5,48($20) \n\
+ xor $22,$24,$24 \n\
+ ldq $6,48($21) \n\
+ xor $25,$27,$27 # 7 cycles from $27 load \n\
+ \n\
+ stq $24,32($17) \n\
+ xor $27,$28,$28 # 8 cycles from $28 load \n\
+ ldq $7,56($17) \n\
+ xor $0,$1,$1 # 6 cycles from $1 load \n\
+ \n\
+ ldq $22,56($18) \n\
+ ldq $23,56($19) \n\
+ ldq $24,56($20) \n\
+ ldq $25,56($21) \n\
+ \n\
+ ldq $31,256($17) \n\
+ xor $28,$1,$1 \n\
+ ldq $31,256($18) \n\
+ xor $2,$3,$3 # 9 cycles from $3 load \n\
+ \n\
+ ldq $31,256($19) \n\
+ xor $3,$4,$4 # 9 cycles from $4 load \n\
+ ldq $31,256($20) \n\
+ xor $5,$6,$6 # 8 cycles from $6 load \n\
+ \n\
+ stq $1,40($17) \n\
+ xor $4,$6,$6 \n\
+ xor $7,$22,$22 # 7 cycles from $22 load \n\
+ xor $23,$24,$24 # 6 cycles from $24 load \n\
+ \n\
+ stq $6,48($17) \n\
+ xor $22,$24,$24 \n\
+ ldq $31,256($21) \n\
+ xor $24,$25,$25 # 8 cycles from $25 load \n\
+ \n\
+ stq $25,56($17) \n\
+ subq $16,1,$16 \n\
+ addq $21,64,$21 \n\
+ addq $20,64,$20 \n\
+ \n\
+ addq $19,64,$19 \n\
+ addq $18,64,$18 \n\
+ addq $17,64,$17 \n\
+ bgt $16,5b \n\
+ \n\
+ ret \n\
+ .end xor_alpha_prefetch_5 \n\
+");
+
+struct xor_block_template xor_block_alpha = {
+ .name = "alpha",
+ .do_2 = xor_alpha_2,
+ .do_3 = xor_alpha_3,
+ .do_4 = xor_alpha_4,
+ .do_5 = xor_alpha_5,
+};
+
+struct xor_block_template xor_block_alpha_prefetch = {
+ .name = "alpha prefetch",
+ .do_2 = xor_alpha_prefetch_2,
+ .do_3 = xor_alpha_prefetch_3,
+ .do_4 = xor_alpha_prefetch_4,
+ .do_5 = xor_alpha_prefetch_5,
+};
--
2.47.3
next prev parent reply other threads:[~2026-03-24 6:24 UTC|newest]
Thread overview: 31+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-03-24 6:21 cleanup the RAID5 XOR library v3 Christoph Hellwig
2026-03-24 6:21 ` [PATCH 01/26] xor: assert that xor_blocks is not from preemptible user context Christoph Hellwig
2026-03-24 6:21 ` [PATCH 02/26] arm/xor: remove in_interrupt() handling Christoph Hellwig
2026-03-24 6:21 ` [PATCH 03/26] um/xor: cleanup xor.h Christoph Hellwig
2026-03-24 6:21 ` [PATCH 04/26] xor: move to lib/raid/ Christoph Hellwig
2026-03-24 6:21 ` [PATCH 05/26] xor: small cleanups Christoph Hellwig
2026-03-24 6:21 ` [PATCH 06/26] xor: cleanup registration and probing Christoph Hellwig
2026-03-24 6:21 ` [PATCH 07/26] xor: split xor.h Christoph Hellwig
2026-03-24 6:21 ` [PATCH 08/26] xor: remove macro abuse for XOR implementation registrations Christoph Hellwig
2026-03-24 6:21 ` [PATCH 09/26] xor: move generic implementations out of asm-generic/xor.h Christoph Hellwig
2026-03-24 6:21 ` Christoph Hellwig [this message]
2026-03-24 6:21 ` [PATCH 11/26] arm: move the XOR code to lib/raid/ Christoph Hellwig
2026-03-24 6:21 ` [PATCH 12/26] arm64: " Christoph Hellwig
2026-03-24 6:21 ` [PATCH 13/26] loongarch: " Christoph Hellwig
2026-03-24 6:21 ` [PATCH 14/26] powerpc: " Christoph Hellwig
2026-03-24 6:21 ` [PATCH 15/26] riscv: " Christoph Hellwig
2026-03-24 6:21 ` [PATCH 16/26] sparc: " Christoph Hellwig
2026-03-24 6:21 ` [PATCH 17/26] s390: " Christoph Hellwig
2026-03-24 6:21 ` [PATCH 18/26] x86: " Christoph Hellwig
2026-03-24 6:21 ` [PATCH 19/26] xor: avoid indirect calls for arm64-optimized ops Christoph Hellwig
2026-03-24 6:21 ` [PATCH 20/26] xor: make xor.ko self-contained in lib/raid/ Christoph Hellwig
2026-03-24 6:21 ` [PATCH 21/26] xor: add a better public API Christoph Hellwig
2026-03-24 6:21 ` [PATCH 22/26] async_xor: use xor_gen Christoph Hellwig
2026-03-24 6:21 ` [PATCH 23/26] btrfs: " Christoph Hellwig
2026-03-24 6:22 ` [PATCH 24/26] xor: pass the entire operation to the low-level ops Christoph Hellwig
2026-03-24 6:22 ` [PATCH 25/26] xor: use static_call for xor_gen Christoph Hellwig
2026-03-24 6:22 ` [PATCH 26/26] xor: add a kunit test case Christoph Hellwig
2026-03-24 12:59 ` cleanup the RAID5 XOR library v3 Andrew Morton
2026-03-24 16:42 ` Andrew Morton
2026-03-25 19:39 ` Eric Biggers
2026-03-26 5:18 ` Christoph Hellwig
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