korg/linux
0
0
Fork 0
mirror of https://mirrors.bfsu.edu.cn/git/linux.git synced 2024-11-24 12:44:11 +08:00
Code Issues Packages Projects Releases Wiki Activity

raid: remove tile specific raid6 implementation

Browse Source 
The Tile architecture is getting removed, so we no longer need this either.

Acked-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
This commit is contained in:
Arnd Bergmann 2018-03-09 16:05:23 +01:00
parent d98983fbf2
commit 889ce12b16
5 changed files with 0 additions and 104 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
include/linux/raid/pq.h
View File

@ -105,7 +105,6 @@ extern const struct raid6_calls raid6_avx2x4;
extern const struct raid6_calls raid6_avx512x1;
extern const struct raid6_calls raid6_avx512x2;
extern const struct raid6_calls raid6_avx512x4;
extern const struct raid6_calls raid6_tilegx8;
extern const struct raid6_calls raid6_s390vx8;
struct raid6_recov_calls {

6
lib/raid6/Makefile
View File

@ -7,7 +7,6 @@ raid6_pq-y += algos.o recov.o tables.o int1.o int2.o int4.o \
raid6_pq-$(CONFIG_X86) += recov_ssse3.o recov_avx2.o mmx.o sse1.o sse2.o avx2.o avx512.o recov_avx512.o
raid6_pq-$(CONFIG_ALTIVEC) += altivec1.o altivec2.o altivec4.o altivec8.o
raid6_pq-$(CONFIG_KERNEL_MODE_NEON) += neon.o neon1.o neon2.o neon4.o neon8.o recov_neon.o recov_neon_inner.o
raid6_pq-$(CONFIG_TILEGX) += tilegx8.o
raid6_pq-$(CONFIG_S390) += s390vx8.o recov_s390xc.o
hostprogs-y += mktables
@ -115,11 +114,6 @@ $(obj)/neon8.c: UNROLL := 8
$(obj)/neon8.c: $(src)/neon.uc $(src)/unroll.awk FORCE
$(call if_changed,unroll)
targets += tilegx8.c
$(obj)/tilegx8.c: UNROLL := 8
$(obj)/tilegx8.c: $(src)/tilegx.uc $(src)/unroll.awk FORCE
$(call if_changed,unroll)
targets += s390vx8.c
$(obj)/s390vx8.c: UNROLL := 8
$(obj)/s390vx8.c: $(src)/s390vx.uc $(src)/unroll.awk FORCE

3
lib/raid6/algos.c
View File

@ -75,9 +75,6 @@ const struct raid6_calls * const raid6_algos[] = {
&raid6_altivec4,
&raid6_altivec8,
#endif
#if defined(CONFIG_TILEGX)
&raid6_tilegx8,
#endif
#if defined(CONFIG_S390)
&raid6_s390vx8,
#endif

7
lib/raid6/test/Makefile
View File

@ -51,9 +51,6 @@ else
OBJS += altivec1.o altivec2.o altivec4.o altivec8.o
endif
endif
ifeq ($(ARCH),tilegx)
OBJS += tilegx8.o
endif
.c.o:
$(CC) $(CFLAGS) -c -o $@ $<
@ -116,15 +113,11 @@ int16.c: int.uc ../unroll.awk
int32.c: int.uc ../unroll.awk
$(AWK) ../unroll.awk -vN=32 < int.uc > $@
tilegx8.c: tilegx.uc ../unroll.awk
$(AWK) ../unroll.awk -vN=8 < tilegx.uc > $@
tables.c: mktables
./mktables > tables.c
clean:
rm -f *.o *.a mktables mktables.c *.uc int*.c altivec*.c neon*.c tables.c raid6test
rm -f tilegx*.c
spotless: clean
rm -f *~

87
lib/raid6/tilegx.uc
View File

@ -1,87 +0,0 @@
/* -*- linux-c -*- ------------------------------------------------------- *
*
* Copyright 2002 H. Peter Anvin - All Rights Reserved
* Copyright 2012 Tilera Corporation - All Rights Reserved
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, Inc., 53 Temple Place Ste 330,
* Boston MA 02111-1307, USA; either version 2 of the License, or
* (at your option) any later version; incorporated herein by reference.
*
* ----------------------------------------------------------------------- */
/*
* tilegx$#.c
*
* $#-way unrolled TILE-Gx SIMD for RAID-6 math.
*
* This file is postprocessed using unroll.awk.
*
*/
#include <linux/raid/pq.h>
/* Create 8 byte copies of constant byte */
# define NBYTES(x) (__insn_v1addi(0, x))
# define NSIZE 8
/*
* The SHLBYTE() operation shifts each byte left by 1, *not*
* rolling over into the next byte
*/
static inline __attribute_const__ u64 SHLBYTE(u64 v)
{
/* Vector One Byte Shift Left Immediate. */
return __insn_v1shli(v, 1);
}
/*
* The MASK() operation returns 0xFF in any byte for which the high
* bit is 1, 0x00 for any byte for which the high bit is 0.
*/
static inline __attribute_const__ u64 MASK(u64 v)
{
/* Vector One Byte Shift Right Signed Immediate. */
return __insn_v1shrsi(v, 7);
}
void raid6_tilegx$#_gen_syndrome(int disks, size_t bytes, void **ptrs)
{
u8 **dptr = (u8 **)ptrs;
u64 *p, *q;
int d, z, z0;
u64 wd$$, wq$$, wp$$, w1$$, w2$$;
u64 x1d = NBYTES(0x1d);
u64 * z0ptr;
z0 = disks - 3; /* Highest data disk */
p = (u64 *)dptr[z0+1]; /* XOR parity */
q = (u64 *)dptr[z0+2]; /* RS syndrome */
z0ptr = (u64 *)&dptr[z0][0];
for ( d = 0 ; d < bytes ; d += NSIZE*$# ) {
wq$$ = wp$$ = *z0ptr++;
for ( z = z0-1 ; z >= 0 ; z-- ) {
wd$$ = *(u64 *)&dptr[z][d+$$*NSIZE];
wp$$ = wp$$ ^ wd$$;
w2$$ = MASK(wq$$);
w1$$ = SHLBYTE(wq$$);
w2$$ = w2$$ & x1d;
w1$$ = w1$$ ^ w2$$;
wq$$ = w1$$ ^ wd$$;
}
*p++ = wp$$;
*q++ = wq$$;
}
}
const struct raid6_calls raid6_tilegx$# = {
raid6_tilegx$#_gen_syndrome,
NULL, /* XOR not yet implemented */
NULL,
"tilegx$#",
0
};