Update Linux to v5.10.109
Sourced from [1]
[1] https://cdn.kernel.org/pub/linux/kernel/v5.x/linux-5.10.109.tar.xz
Change-Id: I19bca9fc6762d4e63bcf3e4cba88bbe560d9c76c
Signed-off-by: Olivier Deprez <olivier.deprez@arm.com>
diff --git a/lib/raid6/.gitignore b/lib/raid6/.gitignore
index 3de0d89..6be5774 100644
--- a/lib/raid6/.gitignore
+++ b/lib/raid6/.gitignore
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0-only
mktables
altivec*.c
int*.c
diff --git a/lib/raid6/Makefile b/lib/raid6/Makefile
index d4d56ca..c770570 100644
--- a/lib/raid6/Makefile
+++ b/lib/raid6/Makefile
@@ -10,7 +10,7 @@
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_S390) += s390vx8.o recov_s390xc.o
-hostprogs-y += mktables
+hostprogs += mktables
ifeq ($(CONFIG_ALTIVEC),y)
altivec_flags := -maltivec $(call cc-option,-mabi=altivec)
diff --git a/lib/raid6/algos.c b/lib/raid6/algos.c
index 17417ee..6d5e500 100644
--- a/lib/raid6/algos.c
+++ b/lib/raid6/algos.c
@@ -34,10 +34,8 @@
&raid6_avx512x2,
&raid6_avx512x1,
#endif
-#ifdef CONFIG_AS_AVX2
&raid6_avx2x2,
&raid6_avx2x1,
-#endif
&raid6_sse2x2,
&raid6_sse2x1,
&raid6_sse1x2,
@@ -51,11 +49,9 @@
&raid6_avx512x2,
&raid6_avx512x1,
#endif
-#ifdef CONFIG_AS_AVX2
&raid6_avx2x4,
&raid6_avx2x2,
&raid6_avx2x1,
-#endif
&raid6_sse2x4,
&raid6_sse2x2,
&raid6_sse2x1,
@@ -97,13 +93,11 @@
EXPORT_SYMBOL_GPL(raid6_datap_recov);
const struct raid6_recov_calls *const raid6_recov_algos[] = {
+#ifdef CONFIG_X86
#ifdef CONFIG_AS_AVX512
&raid6_recov_avx512,
#endif
-#ifdef CONFIG_AS_AVX2
&raid6_recov_avx2,
-#endif
-#ifdef CONFIG_AS_SSSE3
&raid6_recov_ssse3,
#endif
#ifdef CONFIG_S390
@@ -124,6 +118,9 @@
#define time_before(x, y) ((x) < (y))
#endif
+#define RAID6_TEST_DISKS 8
+#define RAID6_TEST_DISKS_ORDER 3
+
static inline const struct raid6_recov_calls *raid6_choose_recov(void)
{
const struct raid6_recov_calls *const *algo;
@@ -146,7 +143,7 @@
}
static inline const struct raid6_calls *raid6_choose_gen(
- void *(*const dptrs)[(65536/PAGE_SIZE)+2], const int disks)
+ void *(*const dptrs)[RAID6_TEST_DISKS], const int disks)
{
unsigned long perf, bestgenperf, bestxorperf, j0, j1;
int start = (disks>>1)-1, stop = disks-3; /* work on the second half of the disks */
@@ -181,7 +178,8 @@
best = *algo;
}
pr_info("raid6: %-8s gen() %5ld MB/s\n", (*algo)->name,
- (perf*HZ) >> (20-16+RAID6_TIME_JIFFIES_LG2));
+ (perf * HZ * (disks-2)) >>
+ (20 - PAGE_SHIFT + RAID6_TIME_JIFFIES_LG2));
if (!(*algo)->xor_syndrome)
continue;
@@ -204,17 +202,24 @@
bestxorperf = perf;
pr_info("raid6: %-8s xor() %5ld MB/s\n", (*algo)->name,
- (perf*HZ) >> (20-16+RAID6_TIME_JIFFIES_LG2+1));
+ (perf * HZ * (disks-2)) >>
+ (20 - PAGE_SHIFT + RAID6_TIME_JIFFIES_LG2 + 1));
}
}
if (best) {
- pr_info("raid6: using algorithm %s gen() %ld MB/s\n",
- best->name,
- (bestgenperf*HZ) >> (20-16+RAID6_TIME_JIFFIES_LG2));
- if (best->xor_syndrome)
- pr_info("raid6: .... xor() %ld MB/s, rmw enabled\n",
- (bestxorperf*HZ) >> (20-16+RAID6_TIME_JIFFIES_LG2+1));
+ if (IS_ENABLED(CONFIG_RAID6_PQ_BENCHMARK)) {
+ pr_info("raid6: using algorithm %s gen() %ld MB/s\n",
+ best->name,
+ (bestgenperf * HZ * (disks-2)) >>
+ (20 - PAGE_SHIFT+RAID6_TIME_JIFFIES_LG2));
+ if (best->xor_syndrome)
+ pr_info("raid6: .... xor() %ld MB/s, rmw enabled\n",
+ (bestxorperf * HZ * (disks-2)) >>
+ (20 - PAGE_SHIFT + RAID6_TIME_JIFFIES_LG2 + 1));
+ } else
+ pr_info("raid6: skip pq benchmark and using algorithm %s\n",
+ best->name);
raid6_call = *best;
} else
pr_err("raid6: Yikes! No algorithm found!\n");
@@ -228,27 +233,33 @@
int __init raid6_select_algo(void)
{
- const int disks = (65536/PAGE_SIZE)+2;
+ const int disks = RAID6_TEST_DISKS;
const struct raid6_calls *gen_best;
const struct raid6_recov_calls *rec_best;
- char *syndromes;
- void *dptrs[(65536/PAGE_SIZE)+2];
- int i;
+ char *disk_ptr, *p;
+ void *dptrs[RAID6_TEST_DISKS];
+ int i, cycle;
- for (i = 0; i < disks-2; i++)
- dptrs[i] = ((char *)raid6_gfmul) + PAGE_SIZE*i;
-
- /* Normal code - use a 2-page allocation to avoid D$ conflict */
- syndromes = (void *) __get_free_pages(GFP_KERNEL, 1);
-
- if (!syndromes) {
+ /* prepare the buffer and fill it circularly with gfmul table */
+ disk_ptr = (char *)__get_free_pages(GFP_KERNEL, RAID6_TEST_DISKS_ORDER);
+ if (!disk_ptr) {
pr_err("raid6: Yikes! No memory available.\n");
return -ENOMEM;
}
- dptrs[disks-2] = syndromes;
- dptrs[disks-1] = syndromes + PAGE_SIZE;
+ p = disk_ptr;
+ for (i = 0; i < disks; i++)
+ dptrs[i] = p + PAGE_SIZE * i;
+
+ cycle = ((disks - 2) * PAGE_SIZE) / 65536;
+ for (i = 0; i < cycle; i++) {
+ memcpy(p, raid6_gfmul, 65536);
+ p += 65536;
+ }
+
+ if ((disks - 2) * PAGE_SIZE % 65536)
+ memcpy(p, raid6_gfmul, (disks - 2) * PAGE_SIZE % 65536);
/* select raid gen_syndrome function */
gen_best = raid6_choose_gen(&dptrs, disks);
@@ -256,7 +267,7 @@
/* select raid recover functions */
rec_best = raid6_choose_recov();
- free_pages((unsigned long)syndromes, 1);
+ free_pages((unsigned long)disk_ptr, RAID6_TEST_DISKS_ORDER);
return gen_best && rec_best ? 0 : -EINVAL;
}
diff --git a/lib/raid6/avx2.c b/lib/raid6/avx2.c
index 87184b6..f299476 100644
--- a/lib/raid6/avx2.c
+++ b/lib/raid6/avx2.c
@@ -13,8 +13,6 @@
*
*/
-#ifdef CONFIG_AS_AVX2
-
#include <linux/raid/pq.h>
#include "x86.h"
@@ -470,5 +468,3 @@
1 /* Has cache hints */
};
#endif
-
-#endif /* CONFIG_AS_AVX2 */
diff --git a/lib/raid6/recov_avx2.c b/lib/raid6/recov_avx2.c
index 7a3b5e7..4e80954 100644
--- a/lib/raid6/recov_avx2.c
+++ b/lib/raid6/recov_avx2.c
@@ -4,8 +4,6 @@
* Author: Jim Kukunas <james.t.kukunas@linux.intel.com>
*/
-#ifdef CONFIG_AS_AVX2
-
#include <linux/raid/pq.h>
#include "x86.h"
@@ -313,7 +311,3 @@
#endif
.priority = 2,
};
-
-#else
-#warning "your version of binutils lacks AVX2 support"
-#endif
diff --git a/lib/raid6/recov_ssse3.c b/lib/raid6/recov_ssse3.c
index 1de97d2..4bfa3c6 100644
--- a/lib/raid6/recov_ssse3.c
+++ b/lib/raid6/recov_ssse3.c
@@ -3,8 +3,6 @@
* Copyright (C) 2012 Intel Corporation
*/
-#ifdef CONFIG_AS_SSSE3
-
#include <linux/raid/pq.h>
#include "x86.h"
@@ -328,7 +326,3 @@
#endif
.priority = 1,
};
-
-#else
-#warning "your version of binutils lacks SSSE3 support"
-#endif
diff --git a/lib/raid6/test/Makefile b/lib/raid6/test/Makefile
index b9e6c36..a4c7cd7 100644
--- a/lib/raid6/test/Makefile
+++ b/lib/raid6/test/Makefile
@@ -34,12 +34,7 @@
ifeq ($(IS_X86),yes)
OBJS += mmx.o sse1.o sse2.o avx2.o recov_ssse3.o recov_avx2.o avx512.o recov_avx512.o
- CFLAGS += $(shell echo "pshufb %xmm0, %xmm0" | \
- gcc -c -x assembler - >/dev/null 2>&1 && \
- rm ./-.o && echo -DCONFIG_AS_SSSE3=1)
- CFLAGS += $(shell echo "vpbroadcastb %xmm0, %ymm1" | \
- gcc -c -x assembler - >/dev/null 2>&1 && \
- rm ./-.o && echo -DCONFIG_AS_AVX2=1)
+ CFLAGS += -DCONFIG_X86
CFLAGS += $(shell echo "vpmovm2b %k1, %zmm5" | \
gcc -c -x assembler - >/dev/null 2>&1 && \
rm ./-.o && echo -DCONFIG_AS_AVX512=1)