* [PATCH v2 2/7] test: self: add digest test
2023-05-26 6:37 [PATCH v2 0/7] ARM64: crypto: add Crypto Extensions accelerated SHA implementation Ahmad Fatoum
2023-05-26 6:37 ` [PATCH v2 1/7] crypto: digest: match driver name if no algo name matches Ahmad Fatoum
@ 2023-05-26 6:37 ` Ahmad Fatoum
2023-05-26 6:37 ` [PATCH v2 3/7] include: sync <linux/linkage.h> with Linux Ahmad Fatoum
` (4 subsequent siblings)
6 siblings, 0 replies; 10+ messages in thread
From: Ahmad Fatoum @ 2023-05-26 6:37 UTC (permalink / raw)
To: barebox; +Cc: Ahmad Fatoum
Later commits will touch existing digest code, so this is a good
opportunity to add a self test to ensure MD5/SHA continues to work.
Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de>
---
test/self/Kconfig | 6 ++
test/self/Makefile | 1 +
test/self/digest.c | 211 +++++++++++++++++++++++++++++++++++++++++++++
3 files changed, 218 insertions(+)
create mode 100644 test/self/digest.c
diff --git a/test/self/Kconfig b/test/self/Kconfig
index c130209748aa..1d6d8ab53a8d 100644
--- a/test/self/Kconfig
+++ b/test/self/Kconfig
@@ -36,6 +36,7 @@ config SELFTEST_ENABLE_ALL
imply SELFTEST_FS_RAMFS
imply SELFTEST_TFTP
imply SELFTEST_JSON
+ imply SELFTEST_DIGEST
imply SELFTEST_MMU
help
Selects all self-tests compatible with current configuration
@@ -75,4 +76,9 @@ config SELFTEST_MMU
select MEMTEST
depends on MMU
+config SELFTEST_DIGEST
+ bool "Digest selftest"
+ depends on DIGEST
+ select PRINTF_HEXSTR
+
endif
diff --git a/test/self/Makefile b/test/self/Makefile
index 8c816c4299f6..269de2e10e88 100644
--- a/test/self/Makefile
+++ b/test/self/Makefile
@@ -9,6 +9,7 @@ obj-$(CONFIG_SELFTEST_OF_MANIPULATION) += of_manipulation.o of_manipulation.dtb.
obj-$(CONFIG_SELFTEST_ENVIRONMENT_VARIABLES) += envvar.o
obj-$(CONFIG_SELFTEST_FS_RAMFS) += ramfs.o
obj-$(CONFIG_SELFTEST_JSON) += json.o
+obj-$(CONFIG_SELFTEST_DIGEST) += digest.o
obj-$(CONFIG_SELFTEST_MMU) += mmu.o
clean-files := *.dtb *.dtb.S .*.dtc .*.pre .*.dts *.dtb.z
diff --git a/test/self/digest.c b/test/self/digest.c
new file mode 100644
index 000000000000..769444ad15ce
--- /dev/null
+++ b/test/self/digest.c
@@ -0,0 +1,211 @@
+// SPDX-License-Identifier: GPL-2.0-only
+
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
+#include <common.h>
+#include <bselftest.h>
+#include <clock.h>
+#include <digest.h>
+
+BSELFTEST_GLOBALS();
+
+struct digest_test_case {
+ const char *name;
+ const void *buf;
+ size_t buf_size;
+ const void *digest_str;
+ u64 time_ns;
+};
+
+#define TEST_CASE(buf, digest_str) \
+ { #buf, buf, sizeof(buf), digest_str }
+
+#define test_digest(option, algo, ...) do { \
+ struct digest_test_case *t, cases[] = { __VA_ARGS__, { /* sentinel */ } }; \
+ for (t = cases; t->buf; t++) \
+ __test_digest((option), (algo), t, __func__, __LINE__); \
+ if (!__is_defined(DEBUG)) \
+ break; \
+ printf("%s:\t", algo); \
+ for (t = cases; t->buf; t++) \
+ printf(" digest(%zu bytes) = %10lluns", t->buf_size, t->time_ns); \
+ printf("\n"); \
+} while (0)
+
+static inline const char *digest_suffix(const char *str, const char *suffix)
+{
+ static char buf[32];
+
+ if (!*suffix)
+ return str;
+
+ WARN_ON(snprintf(buf, sizeof(buf), "%s-%s", str, suffix) >= sizeof(buf));
+ return buf;
+}
+
+static void __test_digest(bool option,
+ const char *algo, struct digest_test_case *t,
+ const char *func, int line)
+{
+ unsigned char *output, *digest;
+ struct digest *d;
+ int hash_len, digest_len;
+ u64 start;
+ int ret;
+
+ total_tests++;
+
+ if (!option) {
+ skipped_tests++;
+ return;
+ }
+
+ d = digest_alloc(algo);
+ if (!d) {
+ printf("%s:%d: failed to allocate %s digest\n", func, line, algo);
+ goto fail;
+ }
+
+ hash_len = digest_length(d);
+ digest_len = strlen(t->digest_str) / 2;
+ if (hash_len != digest_len) {
+ printf("%s:%d: %s digests have length %u, but %u expected\n",
+ func, line, algo, hash_len, digest_len);
+ goto fail;
+ }
+
+ output = calloc(hash_len, 1);
+ if (WARN_ON(!output))
+ goto fail;
+
+ digest = calloc(digest_len, 1);
+ if (WARN_ON(!digest))
+ goto fail;
+
+ ret = hex2bin(digest, t->digest_str, digest_len);
+ if (WARN_ON(ret))
+ goto fail;
+
+ start = get_time_ns();
+
+ ret = digest_digest(d, t->buf, t->buf_size, output);
+ if (ret) {
+ printf("%s:%d: error calculating %s(%s): %pe\n",
+ func, line, algo, t->name, ERR_PTR(ret));
+ goto fail;
+ }
+
+ t->time_ns = get_time_ns() - start;
+
+ if (memcmp(output, digest, hash_len)) {
+ printf("%s:%d: mismatch calculating %s(%s):\n\tgot: %*phN\n\tbut: %*phN expected\n",
+ func, line, algo, t->name, hash_len, output, hash_len, digest);
+ goto fail;
+ }
+
+ return;
+fail:
+ failed_tests++;
+}
+
+static const u8 zeroes7[7] = {};
+static const u8 one32[32] = { 1 };
+static u8 inc4097[4097];
+
+static void test_digest_md5(const char *suffix)
+{
+ bool cond;
+
+ cond = !strcmp(suffix, "generic") ? IS_ENABLED(CONFIG_DIGEST_MD5_GENERIC) :
+ IS_ENABLED(CONFIG_HAVE_DIGEST_MD5);
+
+ test_digest(cond, digest_suffix("md5", suffix),
+ TEST_CASE(zeroes7, "d310a40483f9399dd7ed1712e0fdd702"),
+ TEST_CASE(one32, "b39ac6e2aa7e375c38ba7ae921b5ba89"),
+ TEST_CASE(inc4097, "70410aad262cd11e63ae854804c8024b"));
+}
+
+static void test_digests_sha12(const char *suffix)
+{
+ bool cond;
+
+ cond = !strcmp(suffix, "generic") ? IS_ENABLED(CONFIG_DIGEST_SHA1_GENERIC) :
+ !strcmp(suffix, "asm") ? IS_ENABLED(CONFIG_DIGEST_SHA1_ARM) :
+ IS_ENABLED(CONFIG_HAVE_DIGEST_SHA1);
+
+ test_digest(cond, digest_suffix("sha1", suffix),
+ TEST_CASE(zeroes7, "77ce0377defbd11b77b1f4ad54ca40ea5ef28490"),
+ TEST_CASE(one32, "cbd9cbfc20182e4b71e593e7ad598fc383cc6058"),
+ TEST_CASE(inc4097, "c627e736efd8bb0dff1778335c9c79cb1f27e396"));
+
+
+ cond = !strcmp(suffix, "generic") ? IS_ENABLED(CONFIG_DIGEST_SHA224_GENERIC) :
+ !strcmp(suffix, "asm") ? IS_ENABLED(CONFIG_DIGEST_SHA256_ARM) :
+ IS_ENABLED(CONFIG_HAVE_DIGEST_SHA224);
+
+ test_digest(cond, digest_suffix("sha224", suffix),
+ TEST_CASE(zeroes7, "fbf6df85218ac5632461a8a17c6f294e6f35264cbfc0a9774a4f665b"),
+ TEST_CASE(one32, "343cb3950305e6e6331e294b0a4925739d09ecbd2b43a2fc87c09941"),
+ TEST_CASE(inc4097, "6596b5dcfbd857f4246d6b94508b8a1a5b715a4f644a0c1e7d54c4f7"));
+
+
+ cond = !strcmp(suffix, "generic") ? IS_ENABLED(CONFIG_DIGEST_SHA256_GENERIC) :
+ !strcmp(suffix, "asm") ? IS_ENABLED(CONFIG_DIGEST_SHA256_ARM) :
+ IS_ENABLED(CONFIG_HAVE_DIGEST_SHA256);
+
+ test_digest(cond, digest_suffix("sha256", suffix),
+ TEST_CASE(zeroes7, "837885c8f8091aeaeb9ec3c3f85a6ff470a415e610b8ba3e49f9b33c9cf9d619"),
+ TEST_CASE(one32, "01d0fabd251fcbbe2b93b4b927b26ad2a1a99077152e45ded1e678afa45dbec5"),
+ TEST_CASE(inc4097, "1e973d029df2b2c66cb42a942c5edb45966f02abaff29fe99410e44d271d0efc"));
+}
+
+
+static void test_digests_sha35(const char *suffix)
+{
+ bool cond;
+
+ cond = !strcmp(suffix, "generic") ? IS_ENABLED(CONFIG_DIGEST_SHA384_GENERIC) :
+ IS_ENABLED(CONFIG_HAVE_DIGEST_SHA384);
+
+ test_digest(cond, digest_suffix("sha384", suffix),
+ TEST_CASE(zeroes7, "b56705a73cf280f06d3a6b482c441a3d280c930d0c44b04f364dcdcedcfbc47c"
+ "f3645a71da7b97f9e5d3a0924f6b9634"),
+ TEST_CASE(one32, "dd606b49d7658a5eae905d593271c280819f92eb1a9a4986057aedc0a5f2eaea"
+ "99052904718f6d83f16ad209d793f253"),
+ TEST_CASE(inc4097, "f76046b90890f20ae94066a3ad33010f5b3b2fd46977414636bbc634898b06fd"
+ "4cb8f85e0926e8817e518300a930529e"));
+
+
+ cond = !strcmp(suffix, "generic") ? IS_ENABLED(CONFIG_DIGEST_SHA512_GENERIC) :
+ IS_ENABLED(CONFIG_HAVE_DIGEST_SHA512);
+
+ test_digest(cond, digest_suffix("sha512", suffix),
+ TEST_CASE(zeroes7, "76afca18a9b81ffb967ffcf0460ed221c3605d3820057214d785fa88259bb5cb"
+ "729576178e6edb0134f645d2e2e92cbabf1333462f3b9058692c950f51c64a92"),
+ TEST_CASE(one32, "ce0c265ecc82dd8cee6e56ce44e45dafd7a0c5750df914b253a1fb7a8af66ddb"
+ "99763607f0a85d0bd43669194a3a40577a528af395f4f17e06f1defcc6deb2a5"),
+ TEST_CASE(inc4097, "42eb09aca460d79b0c0aeac28187ed055a92e33602b69428461697680ff9f48f"
+ "60a5a68aa0017e3446433349b42592b74713d7787628a58e400b7f588b9bd69b"));
+}
+
+static void test_digests(void)
+{
+ int i;
+
+ for (i = 0; i < ARRAY_SIZE(inc4097); i++)
+ inc4097[i] = i;
+
+ test_digest_md5("generic");
+
+ test_digests_sha12("generic");
+ if (IS_ENABLED(CONFIG_CPU_32))
+ test_digests_sha12("asm");
+
+ test_digests_sha35("generic");
+
+ test_digest_md5("");
+ test_digests_sha12("");
+ test_digests_sha35("");
+
+}
+bselftest(core, test_digests);
--
2.39.2
^ permalink raw reply [flat|nested] 10+ messages in thread* [PATCH v2 5/7] ARM: asm: import Linux adr_l/ldr_l assembler.h definitions
2023-05-26 6:37 [PATCH v2 0/7] ARM64: crypto: add Crypto Extensions accelerated SHA implementation Ahmad Fatoum
` (3 preceding siblings ...)
2023-05-26 6:37 ` [PATCH v2 4/7] ARM: asm: implement CPU_BE/CPU_LE Ahmad Fatoum
@ 2023-05-26 6:37 ` Ahmad Fatoum
2023-05-26 6:37 ` [PATCH v2 6/7] crypto: sha: reorder struct sha*_state into Linux order Ahmad Fatoum
2023-05-26 6:37 ` [PATCH v2 7/7] ARM64: crypto: add Crypto Extensions accelerated SHA implementation Ahmad Fatoum
6 siblings, 0 replies; 10+ messages in thread
From: Ahmad Fatoum @ 2023-05-26 6:37 UTC (permalink / raw)
To: barebox; +Cc: Ahmad Fatoum
These macros will come in handy to have loads in assembly routines not
generate relocation entries.
Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de>
---
arch/arm/include/asm/assembler.h | 211 +++++++++++++++++++++++++++++++
1 file changed, 211 insertions(+)
diff --git a/arch/arm/include/asm/assembler.h b/arch/arm/include/asm/assembler.h
index 7f9281b9a1a1..5db0f692eec6 100644
--- a/arch/arm/include/asm/assembler.h
+++ b/arch/arm/include/asm/assembler.h
@@ -130,3 +130,214 @@
#else
#define CPU_LE(code...) code
#endif
+
+#ifdef CONFIG_CPU_64
+/*
+ * Pseudo-ops for PC-relative adr/ldr/str <reg>, <symbol> where
+ * <symbol> is within the range +/- 4 GB of the PC.
+ */
+ /*
+ * @dst: destination register (64 bit wide)
+ * @sym: name of the symbol
+ */
+ .macro adr_l, dst, sym
+ adrp \dst, \sym
+ add \dst, \dst, :lo12:\sym
+ .endm
+
+ /*
+ * @dst: destination register (32 or 64 bit wide)
+ * @sym: name of the symbol
+ * @tmp: optional 64-bit scratch register to be used if <dst> is a
+ * 32-bit wide register, in which case it cannot be used to hold
+ * the address
+ */
+ .macro ldr_l, dst, sym, tmp=
+ .ifb \tmp
+ adrp \dst, \sym
+ ldr \dst, [\dst, :lo12:\sym]
+ .else
+ adrp \tmp, \sym
+ ldr \dst, [\tmp, :lo12:\sym]
+ .endif
+ .endm
+
+ /*
+ * @src: source register (32 or 64 bit wide)
+ * @sym: name of the symbol
+ * @tmp: mandatory 64-bit scratch register to calculate the address
+ * while <src> needs to be preserved.
+ */
+ .macro str_l, src, sym, tmp
+ adrp \tmp, \sym
+ str \src, [\tmp, :lo12:\sym]
+ .endm
+
+#else
+
+ .macro __adldst_l, op, reg, sym, tmp, c
+ .if __LINUX_ARM_ARCH__ < 7
+ ldr\c \tmp, .La\@
+ .subsection 1
+ .align 2
+.La\@: .long \sym - .Lpc\@
+ .previous
+ .else
+ .ifnb \c
+ THUMB( ittt \c )
+ .endif
+ movw\c \tmp, #:lower16:\sym - .Lpc\@
+ movt\c \tmp, #:upper16:\sym - .Lpc\@
+ .endif
+
+#ifndef CONFIG_THUMB2_BAREBOX
+ .set .Lpc\@, . + 8 // PC bias
+ .ifc \op, add
+ add\c \reg, \tmp, pc
+ .else
+ \op\c \reg, [pc, \tmp]
+ .endif
+#else
+.Lb\@: add\c \tmp, \tmp, pc
+ /*
+ * In Thumb-2 builds, the PC bias depends on whether we are currently
+ * emitting into a .arm or a .thumb section. The size of the add opcode
+ * above will be 2 bytes when emitting in Thumb mode and 4 bytes when
+ * emitting in ARM mode, so let's use this to account for the bias.
+ */
+ .set .Lpc\@, . + (. - .Lb\@)
+
+ .ifnc \op, add
+ \op\c \reg, [\tmp]
+ .endif
+#endif
+ .endm
+
+ /*
+ * mov_l - move a constant value or [relocated] address into a register
+ */
+ .macro mov_l, dst:req, imm:req, cond
+ .if __LINUX_ARM_ARCH__ < 7
+ ldr\cond \dst, =\imm
+ .else
+ movw\cond \dst, #:lower16:\imm
+ movt\cond \dst, #:upper16:\imm
+ .endif
+ .endm
+
+ /*
+ * adr_l - adr pseudo-op with unlimited range
+ *
+ * @dst: destination register
+ * @sym: name of the symbol
+ * @cond: conditional opcode suffix
+ */
+ .macro adr_l, dst:req, sym:req, cond
+ __adldst_l add, \dst, \sym, \dst, \cond
+ .endm
+
+ /*
+ * ldr_l - ldr <literal> pseudo-op with unlimited range
+ *
+ * @dst: destination register
+ * @sym: name of the symbol
+ * @cond: conditional opcode suffix
+ */
+ .macro ldr_l, dst:req, sym:req, cond
+ __adldst_l ldr, \dst, \sym, \dst, \cond
+ .endm
+
+ /*
+ * str_l - str <literal> pseudo-op with unlimited range
+ *
+ * @src: source register
+ * @sym: name of the symbol
+ * @tmp: mandatory scratch register
+ * @cond: conditional opcode suffix
+ */
+ .macro str_l, src:req, sym:req, tmp:req, cond
+ __adldst_l str, \src, \sym, \tmp, \cond
+ .endm
+
+ .macro __ldst_va, op, reg, tmp, sym, cond, offset
+#if __LINUX_ARM_ARCH__ >= 7 || \
+ (defined(MODULE) && defined(CONFIG_ARM_MODULE_PLTS))
+ mov_l \tmp, \sym, \cond
+#else
+ /*
+ * Avoid a literal load, by emitting a sequence of ADD/LDR instructions
+ * with the appropriate relocations. The combined sequence has a range
+ * of -/+ 256 MiB, which should be sufficient for the core kernel and
+ * for modules loaded into the module region.
+ */
+ .globl \sym
+ .reloc .L0_\@, R_ARM_ALU_PC_G0_NC, \sym
+ .reloc .L1_\@, R_ARM_ALU_PC_G1_NC, \sym
+ .reloc .L2_\@, R_ARM_LDR_PC_G2, \sym
+.L0_\@: sub\cond \tmp, pc, #8 - \offset
+.L1_\@: sub\cond \tmp, \tmp, #4 - \offset
+.L2_\@:
+#endif
+ \op\cond \reg, [\tmp, #\offset]
+ .endm
+
+ /*
+ * ldr_va - load a 32-bit word from the virtual address of \sym
+ */
+ .macro ldr_va, rd:req, sym:req, cond, tmp, offset=0
+ .ifnb \tmp
+ __ldst_va ldr, \rd, \tmp, \sym, \cond, \offset
+ .else
+ __ldst_va ldr, \rd, \rd, \sym, \cond, \offset
+ .endif
+ .endm
+
+ /*
+ * str_va - store a 32-bit word to the virtual address of \sym
+ */
+ .macro str_va, rn:req, sym:req, tmp:req, cond
+ __ldst_va str, \rn, \tmp, \sym, \cond, 0
+ .endm
+
+ /*
+ * ldr_this_cpu - Load a 32-bit word from the per-CPU variable 'sym'
+ * into register 'rd', which may be the stack pointer,
+ * using 't1' and 't2' as general temp registers. These
+ * are permitted to overlap with 'rd' if != sp
+ */
+ .macro ldr_this_cpu, rd:req, sym:req, t1:req, t2:req
+ ldr_va \rd, \sym, tmp=\t1
+ .endm
+
+ /*
+ * rev_l - byte-swap a 32-bit value
+ *
+ * @val: source/destination register
+ * @tmp: scratch register
+ */
+ .macro rev_l, val:req, tmp:req
+ .if __LINUX_ARM_ARCH__ < 6
+ eor \tmp, \val, \val, ror #16
+ bic \tmp, \tmp, #0x00ff0000
+ mov \val, \val, ror #8
+ eor \val, \val, \tmp, lsr #8
+ .else
+ rev \val, \val
+ .endif
+ .endm
+
+ /*
+ * bl_r - branch and link to register
+ *
+ * @dst: target to branch to
+ * @c: conditional opcode suffix
+ */
+ .macro bl_r, dst:req, c
+ .if __LINUX_ARM_ARCH__ < 6
+ mov\c lr, pc
+ mov\c pc, \dst
+ .else
+ blx\c \dst
+ .endif
+ .endm
+#endif
--
2.39.2
^ permalink raw reply [flat|nested] 10+ messages in thread* [PATCH v2 7/7] ARM64: crypto: add Crypto Extensions accelerated SHA implementation
2023-05-26 6:37 [PATCH v2 0/7] ARM64: crypto: add Crypto Extensions accelerated SHA implementation Ahmad Fatoum
` (5 preceding siblings ...)
2023-05-26 6:37 ` [PATCH v2 6/7] crypto: sha: reorder struct sha*_state into Linux order Ahmad Fatoum
@ 2023-05-26 6:37 ` Ahmad Fatoum
6 siblings, 0 replies; 10+ messages in thread
From: Ahmad Fatoum @ 2023-05-26 6:37 UTC (permalink / raw)
To: barebox; +Cc: Ahmad Fatoum
This imports the Linux v6.3 state of the ARMv8 Crypto Extensions (CE)
accelerated SHA1/SHA2 routines. This increases hashing rate a tenfold:
sha1-generic: digest(7 bytes) = 11750ns digest(4097 bytes) = 59125ns
sha224-generic: digest(7 bytes) = 12750ns digest(4097 bytes) = 95000ns
sha256-generic: digest(7 bytes) = 2250ns digest(4097 bytes) = 94875ns
sha1-ce: digest(7 bytes) = 2875ns digest(4097 bytes) = 8125ns
sha224-ce: digest(7 bytes) = 3125ns digest(4097 bytes) = 7750ns
sha256-ce: digest(7 bytes) = 750ns digest(4097 bytes) = 7625ns
This shaves 400ms of a FIT image boot that uses sha256 as digest for
the images referenced by the selected configuration:
barebox@imx8mn-old:/ time bootm -d kernel-a
Dryrun. Aborted.
time: 998ms
barebox@imx8mn-new:/ time bootm -d kernel-a
Dryrun. Aborted.
time: 601ms
Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de>
---
arch/arm/Makefile | 3 +-
arch/arm/crypto/Makefile | 6 ++
arch/arm/crypto/sha1-ce-core.S | 149 ++++++++++++++++++++++++++++++
arch/arm/crypto/sha1-ce-glue.c | 93 +++++++++++++++++++
arch/arm/crypto/sha2-ce-core.S | 156 ++++++++++++++++++++++++++++++++
arch/arm/crypto/sha2-ce-glue.c | 121 +++++++++++++++++++++++++
arch/arm/include/asm/neon.h | 8 ++
crypto/Kconfig | 21 +++++
include/crypto/sha.h | 4 +
include/crypto/sha1_base.h | 104 +++++++++++++++++++++
include/crypto/sha256_base.h | 129 ++++++++++++++++++++++++++
include/linux/barebox-wrapper.h | 1 +
include/linux/string.h | 20 ++++
test/self/digest.c | 2 +
14 files changed, 816 insertions(+), 1 deletion(-)
create mode 100644 arch/arm/crypto/sha1-ce-core.S
create mode 100644 arch/arm/crypto/sha1-ce-glue.c
create mode 100644 arch/arm/crypto/sha2-ce-core.S
create mode 100644 arch/arm/crypto/sha2-ce-glue.c
create mode 100644 arch/arm/include/asm/neon.h
create mode 100644 include/crypto/sha1_base.h
create mode 100644 include/crypto/sha256_base.h
diff --git a/arch/arm/Makefile b/arch/arm/Makefile
index 2208b071ac11..35ebc70f44e2 100644
--- a/arch/arm/Makefile
+++ b/arch/arm/Makefile
@@ -195,11 +195,12 @@ endif
common-y += arch/arm/boards/ $(MACH)
common-y += arch/arm/cpu/
+common-y += arch/arm/crypto/
ifeq ($(CONFIG_CPU_V8), y)
common-y += arch/arm/lib64/
else
-common-y += arch/arm/lib32/ arch/arm/crypto/
+common-y += arch/arm/lib32/
endif
common-$(CONFIG_OFTREE) += arch/arm/dts/
diff --git a/arch/arm/crypto/Makefile b/arch/arm/crypto/Makefile
index 990c0bd609cd..55b3ac0538f6 100644
--- a/arch/arm/crypto/Makefile
+++ b/arch/arm/crypto/Makefile
@@ -9,6 +9,12 @@ obj-$(CONFIG_DIGEST_SHA256_ARM) += sha256-arm.o
sha1-arm-y := sha1-armv4-large.o sha1_glue.o
sha256-arm-y := sha256-core.o sha256_glue.o
+obj-$(CONFIG_DIGEST_SHA1_ARM64_CE) += sha1-ce.o
+sha1-ce-y := sha1-ce-glue.o sha1-ce-core.o
+
+obj-$(CONFIG_DIGEST_SHA256_ARM64_CE) += sha2-ce.o
+sha2-ce-y := sha2-ce-glue.o sha2-ce-core.o
+
quiet_cmd_perl = PERL $@
cmd_perl = $(PERL) $(<) > $(@)
diff --git a/arch/arm/crypto/sha1-ce-core.S b/arch/arm/crypto/sha1-ce-core.S
new file mode 100644
index 000000000000..dec53c68c814
--- /dev/null
+++ b/arch/arm/crypto/sha1-ce-core.S
@@ -0,0 +1,149 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * sha1-ce-core.S - SHA-1 secure hash using ARMv8 Crypto Extensions
+ *
+ * Copyright (C) 2014 Linaro Ltd <ard.biesheuvel@linaro.org>
+ */
+
+#include <linux/linkage.h>
+#include <asm/assembler.h>
+
+ .text
+ .arch armv8-a+crypto
+
+ k0 .req v0
+ k1 .req v1
+ k2 .req v2
+ k3 .req v3
+
+ t0 .req v4
+ t1 .req v5
+
+ dga .req q6
+ dgav .req v6
+ dgb .req s7
+ dgbv .req v7
+
+ dg0q .req q12
+ dg0s .req s12
+ dg0v .req v12
+ dg1s .req s13
+ dg1v .req v13
+ dg2s .req s14
+
+ .macro add_only, op, ev, rc, s0, dg1
+ .ifc \ev, ev
+ add t1.4s, v\s0\().4s, \rc\().4s
+ sha1h dg2s, dg0s
+ .ifnb \dg1
+ sha1\op dg0q, \dg1, t0.4s
+ .else
+ sha1\op dg0q, dg1s, t0.4s
+ .endif
+ .else
+ .ifnb \s0
+ add t0.4s, v\s0\().4s, \rc\().4s
+ .endif
+ sha1h dg1s, dg0s
+ sha1\op dg0q, dg2s, t1.4s
+ .endif
+ .endm
+
+ .macro add_update, op, ev, rc, s0, s1, s2, s3, dg1
+ sha1su0 v\s0\().4s, v\s1\().4s, v\s2\().4s
+ add_only \op, \ev, \rc, \s1, \dg1
+ sha1su1 v\s0\().4s, v\s3\().4s
+ .endm
+
+ .macro loadrc, k, val, tmp
+ movz \tmp, :abs_g0_nc:\val
+ movk \tmp, :abs_g1:\val
+ dup \k, \tmp
+ .endm
+
+ /*
+ * int sha1_ce_transform(struct sha1_ce_state *sst, u8 const *src,
+ * int blocks)
+ */
+SYM_FUNC_START(sha1_ce_transform)
+ /* load round constants */
+ loadrc k0.4s, 0x5a827999, w6
+ loadrc k1.4s, 0x6ed9eba1, w6
+ loadrc k2.4s, 0x8f1bbcdc, w6
+ loadrc k3.4s, 0xca62c1d6, w6
+
+ /* load state */
+ ld1 {dgav.4s}, [x0]
+ ldr dgb, [x0, #16]
+
+ /* load sha1_ce_state::finalize */
+ ldr_l w4, sha1_ce_offsetof_finalize, x4
+ ldr w4, [x0, x4]
+
+ /* load input */
+0: ld1 {v8.4s-v11.4s}, [x1], #64
+ sub w2, w2, #1
+
+CPU_LE( rev32 v8.16b, v8.16b )
+CPU_LE( rev32 v9.16b, v9.16b )
+CPU_LE( rev32 v10.16b, v10.16b )
+CPU_LE( rev32 v11.16b, v11.16b )
+
+1: add t0.4s, v8.4s, k0.4s
+ mov dg0v.16b, dgav.16b
+
+ add_update c, ev, k0, 8, 9, 10, 11, dgb
+ add_update c, od, k0, 9, 10, 11, 8
+ add_update c, ev, k0, 10, 11, 8, 9
+ add_update c, od, k0, 11, 8, 9, 10
+ add_update c, ev, k1, 8, 9, 10, 11
+
+ add_update p, od, k1, 9, 10, 11, 8
+ add_update p, ev, k1, 10, 11, 8, 9
+ add_update p, od, k1, 11, 8, 9, 10
+ add_update p, ev, k1, 8, 9, 10, 11
+ add_update p, od, k2, 9, 10, 11, 8
+
+ add_update m, ev, k2, 10, 11, 8, 9
+ add_update m, od, k2, 11, 8, 9, 10
+ add_update m, ev, k2, 8, 9, 10, 11
+ add_update m, od, k2, 9, 10, 11, 8
+ add_update m, ev, k3, 10, 11, 8, 9
+
+ add_update p, od, k3, 11, 8, 9, 10
+ add_only p, ev, k3, 9
+ add_only p, od, k3, 10
+ add_only p, ev, k3, 11
+ add_only p, od
+
+ /* update state */
+ add dgbv.2s, dgbv.2s, dg1v.2s
+ add dgav.4s, dgav.4s, dg0v.4s
+
+ cbz w2, 2f
+ b 0b
+
+ /*
+ * Final block: add padding and total bit count.
+ * Skip if the input size was not a round multiple of the block size,
+ * the padding is handled by the C code in that case.
+ */
+2: cbz x4, 3f
+ ldr_l w4, sha1_ce_offsetof_count, x4
+ ldr x4, [x0, x4]
+ movi v9.2d, #0
+ mov x8, #0x80000000
+ movi v10.2d, #0
+ ror x7, x4, #29 // ror(lsl(x4, 3), 32)
+ fmov d8, x8
+ mov x4, #0
+ mov v11.d[0], xzr
+ mov v11.d[1], x7
+ b 1b
+
+ /* store new state */
+3: st1 {dgav.4s}, [x0]
+ str dgb, [x0, #16]
+ mov w0, w2
+ ret
+SYM_FUNC_END(sha1_ce_transform)
diff --git a/arch/arm/crypto/sha1-ce-glue.c b/arch/arm/crypto/sha1-ce-glue.c
new file mode 100644
index 000000000000..5b49237573fa
--- /dev/null
+++ b/arch/arm/crypto/sha1-ce-glue.c
@@ -0,0 +1,93 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * sha1-ce-glue.c - SHA-1 secure hash using ARMv8 Crypto Extensions
+ *
+ * Copyright (C) 2014 - 2017 Linaro Ltd <ard.biesheuvel@linaro.org>
+ */
+
+#include <common.h>
+#include <digest.h>
+#include <init.h>
+#include <crypto/sha.h>
+#include <crypto/sha1_base.h>
+#include <crypto/internal.h>
+#include <linux/linkage.h>
+#include <asm/byteorder.h>
+#include <asm/neon.h>
+
+MODULE_DESCRIPTION("SHA1 secure hash using ARMv8 Crypto Extensions");
+MODULE_AUTHOR("Ard Biesheuvel <ard.biesheuvel@linaro.org>");
+MODULE_LICENSE("GPL v2");
+MODULE_ALIAS_CRYPTO("sha1");
+
+struct sha1_ce_state {
+ struct sha1_state sst;
+ u32 finalize;
+};
+
+extern const u32 sha1_ce_offsetof_count;
+extern const u32 sha1_ce_offsetof_finalize;
+
+asmlinkage int sha1_ce_transform(struct sha1_ce_state *sst, u8 const *src,
+ int blocks);
+
+static void __sha1_ce_transform(struct sha1_state *sst, u8 const *src,
+ int blocks)
+{
+ while (blocks) {
+ int rem;
+
+ kernel_neon_begin();
+ rem = sha1_ce_transform(container_of(sst, struct sha1_ce_state,
+ sst), src, blocks);
+ kernel_neon_end();
+ src += (blocks - rem) * SHA1_BLOCK_SIZE;
+ blocks = rem;
+ }
+}
+
+const u32 sha1_ce_offsetof_count = offsetof(struct sha1_ce_state, sst.count);
+const u32 sha1_ce_offsetof_finalize = offsetof(struct sha1_ce_state, finalize);
+
+static int sha1_ce_update(struct digest *desc, const void *data,
+ unsigned long len)
+{
+ struct sha1_ce_state *sctx = digest_ctx(desc);
+
+ sctx->finalize = 0;
+ sha1_base_do_update(desc, data, len, __sha1_ce_transform);
+
+ return 0;
+}
+
+static int sha1_ce_final(struct digest *desc, u8 *out)
+{
+ struct sha1_ce_state *sctx = digest_ctx(desc);
+
+ sctx->finalize = 0;
+ sha1_base_do_finalize(desc, __sha1_ce_transform);
+ return sha1_base_finish(desc, out);
+}
+
+static struct digest_algo m = {
+ .base = {
+ .name = "sha1",
+ .driver_name = "sha1-ce",
+ .priority = 200,
+ .algo = HASH_ALGO_SHA1,
+ },
+
+ .init = sha1_base_init,
+ .update = sha1_ce_update,
+ .final = sha1_ce_final,
+ .digest = digest_generic_digest,
+ .verify = digest_generic_verify,
+ .length = SHA1_DIGEST_SIZE,
+ .ctx_length = sizeof(struct sha1_ce_state),
+};
+
+static int sha1_ce_mod_init(void)
+{
+ return digest_algo_register(&m);
+}
+coredevice_initcall(sha1_ce_mod_init);
diff --git a/arch/arm/crypto/sha2-ce-core.S b/arch/arm/crypto/sha2-ce-core.S
new file mode 100644
index 000000000000..5a60b13b87a2
--- /dev/null
+++ b/arch/arm/crypto/sha2-ce-core.S
@@ -0,0 +1,156 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * sha2-ce-core.S - core SHA-224/SHA-256 transform using v8 Crypto Extensions
+ *
+ * Copyright (C) 2014 Linaro Ltd <ard.biesheuvel@linaro.org>
+ */
+
+#include <linux/linkage.h>
+#include <asm/assembler.h>
+
+ .text
+ .arch armv8-a+crypto
+
+ dga .req q20
+ dgav .req v20
+ dgb .req q21
+ dgbv .req v21
+
+ t0 .req v22
+ t1 .req v23
+
+ dg0q .req q24
+ dg0v .req v24
+ dg1q .req q25
+ dg1v .req v25
+ dg2q .req q26
+ dg2v .req v26
+
+ .macro add_only, ev, rc, s0
+ mov dg2v.16b, dg0v.16b
+ .ifeq \ev
+ add t1.4s, v\s0\().4s, \rc\().4s
+ sha256h dg0q, dg1q, t0.4s
+ sha256h2 dg1q, dg2q, t0.4s
+ .else
+ .ifnb \s0
+ add t0.4s, v\s0\().4s, \rc\().4s
+ .endif
+ sha256h dg0q, dg1q, t1.4s
+ sha256h2 dg1q, dg2q, t1.4s
+ .endif
+ .endm
+
+ .macro add_update, ev, rc, s0, s1, s2, s3
+ sha256su0 v\s0\().4s, v\s1\().4s
+ add_only \ev, \rc, \s1
+ sha256su1 v\s0\().4s, v\s2\().4s, v\s3\().4s
+ .endm
+
+ /*
+ * The SHA-256 round constants
+ */
+ .section ".rodata", "a"
+ .align 4
+.Lsha2_rcon:
+ .word 0x428a2f98, 0x71374491, 0xb5c0fbcf, 0xe9b5dba5
+ .word 0x3956c25b, 0x59f111f1, 0x923f82a4, 0xab1c5ed5
+ .word 0xd807aa98, 0x12835b01, 0x243185be, 0x550c7dc3
+ .word 0x72be5d74, 0x80deb1fe, 0x9bdc06a7, 0xc19bf174
+ .word 0xe49b69c1, 0xefbe4786, 0x0fc19dc6, 0x240ca1cc
+ .word 0x2de92c6f, 0x4a7484aa, 0x5cb0a9dc, 0x76f988da
+ .word 0x983e5152, 0xa831c66d, 0xb00327c8, 0xbf597fc7
+ .word 0xc6e00bf3, 0xd5a79147, 0x06ca6351, 0x14292967
+ .word 0x27b70a85, 0x2e1b2138, 0x4d2c6dfc, 0x53380d13
+ .word 0x650a7354, 0x766a0abb, 0x81c2c92e, 0x92722c85
+ .word 0xa2bfe8a1, 0xa81a664b, 0xc24b8b70, 0xc76c51a3
+ .word 0xd192e819, 0xd6990624, 0xf40e3585, 0x106aa070
+ .word 0x19a4c116, 0x1e376c08, 0x2748774c, 0x34b0bcb5
+ .word 0x391c0cb3, 0x4ed8aa4a, 0x5b9cca4f, 0x682e6ff3
+ .word 0x748f82ee, 0x78a5636f, 0x84c87814, 0x8cc70208
+ .word 0x90befffa, 0xa4506ceb, 0xbef9a3f7, 0xc67178f2
+
+ /*
+ * void sha2_ce_transform(struct sha256_ce_state *sst, u8 const *src,
+ * int blocks)
+ */
+ .text
+SYM_FUNC_START(sha2_ce_transform)
+ /* load round constants */
+ adr_l x8, .Lsha2_rcon
+ ld1 { v0.4s- v3.4s}, [x8], #64
+ ld1 { v4.4s- v7.4s}, [x8], #64
+ ld1 { v8.4s-v11.4s}, [x8], #64
+ ld1 {v12.4s-v15.4s}, [x8]
+
+ /* load state */
+ ld1 {dgav.4s, dgbv.4s}, [x0]
+
+ /* load sha256_ce_state::finalize */
+ ldr_l w4, sha256_ce_offsetof_finalize, x4
+ ldr w4, [x0, x4]
+
+ /* load input */
+0: ld1 {v16.4s-v19.4s}, [x1], #64
+ sub w2, w2, #1
+
+CPU_LE( rev32 v16.16b, v16.16b )
+CPU_LE( rev32 v17.16b, v17.16b )
+CPU_LE( rev32 v18.16b, v18.16b )
+CPU_LE( rev32 v19.16b, v19.16b )
+
+1: add t0.4s, v16.4s, v0.4s
+ mov dg0v.16b, dgav.16b
+ mov dg1v.16b, dgbv.16b
+
+ add_update 0, v1, 16, 17, 18, 19
+ add_update 1, v2, 17, 18, 19, 16
+ add_update 0, v3, 18, 19, 16, 17
+ add_update 1, v4, 19, 16, 17, 18
+
+ add_update 0, v5, 16, 17, 18, 19
+ add_update 1, v6, 17, 18, 19, 16
+ add_update 0, v7, 18, 19, 16, 17
+ add_update 1, v8, 19, 16, 17, 18
+
+ add_update 0, v9, 16, 17, 18, 19
+ add_update 1, v10, 17, 18, 19, 16
+ add_update 0, v11, 18, 19, 16, 17
+ add_update 1, v12, 19, 16, 17, 18
+
+ add_only 0, v13, 17
+ add_only 1, v14, 18
+ add_only 0, v15, 19
+ add_only 1
+
+ /* update state */
+ add dgav.4s, dgav.4s, dg0v.4s
+ add dgbv.4s, dgbv.4s, dg1v.4s
+
+ /* handled all input blocks? */
+ cbz w2, 2f
+ b 0b
+
+ /*
+ * Final block: add padding and total bit count.
+ * Skip if the input size was not a round multiple of the block size,
+ * the padding is handled by the C code in that case.
+ */
+2: cbz x4, 3f
+ ldr_l w4, sha256_ce_offsetof_count, x4
+ ldr x4, [x0, x4]
+ movi v17.2d, #0
+ mov x8, #0x80000000
+ movi v18.2d, #0
+ ror x7, x4, #29 // ror(lsl(x4, 3), 32)
+ fmov d16, x8
+ mov x4, #0
+ mov v19.d[0], xzr
+ mov v19.d[1], x7
+ b 1b
+
+ /* store new state */
+3: st1 {dgav.4s, dgbv.4s}, [x0]
+ mov w0, w2
+ ret
+SYM_FUNC_END(sha2_ce_transform)
diff --git a/arch/arm/crypto/sha2-ce-glue.c b/arch/arm/crypto/sha2-ce-glue.c
new file mode 100644
index 000000000000..88cbc7993dac
--- /dev/null
+++ b/arch/arm/crypto/sha2-ce-glue.c
@@ -0,0 +1,121 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * sha2-ce-glue.c - SHA-224/SHA-256 using ARMv8 Crypto Extensions
+ *
+ * Copyright (C) 2014 - 2017 Linaro Ltd <ard.biesheuvel@linaro.org>
+ */
+
+#include <common.h>
+#include <digest.h>
+#include <init.h>
+#include <crypto/sha.h>
+#include <crypto/sha256_base.h>
+#include <crypto/internal.h>
+#include <linux/linkage.h>
+#include <asm/byteorder.h>
+#include <asm/neon.h>
+
+#include <asm/neon.h>
+
+MODULE_DESCRIPTION("SHA-224/SHA-256 secure hash using ARMv8 Crypto Extensions");
+MODULE_AUTHOR("Ard Biesheuvel <ard.biesheuvel@linaro.org>");
+MODULE_LICENSE("GPL v2");
+MODULE_ALIAS_CRYPTO("sha224");
+MODULE_ALIAS_CRYPTO("sha256");
+
+struct sha256_ce_state {
+ struct sha256_state sst;
+ u32 finalize;
+};
+
+extern const u32 sha256_ce_offsetof_count;
+extern const u32 sha256_ce_offsetof_finalize;
+
+asmlinkage int sha2_ce_transform(struct sha256_ce_state *sst, u8 const *src,
+ int blocks);
+
+static void __sha2_ce_transform(struct sha256_state *sst, u8 const *src,
+ int blocks)
+{
+ while (blocks) {
+ int rem;
+
+ kernel_neon_begin();
+ rem = sha2_ce_transform(container_of(sst, struct sha256_ce_state,
+ sst), src, blocks);
+ kernel_neon_end();
+ src += (blocks - rem) * SHA256_BLOCK_SIZE;
+ blocks = rem;
+ }
+}
+
+const u32 sha256_ce_offsetof_count = offsetof(struct sha256_ce_state,
+ sst.count);
+const u32 sha256_ce_offsetof_finalize = offsetof(struct sha256_ce_state,
+ finalize);
+
+static int sha256_ce_update(struct digest *desc, const void *data,
+ unsigned long len)
+{
+ struct sha256_ce_state *sctx = digest_ctx(desc);
+
+ sctx->finalize = 0;
+ sha256_base_do_update(desc, data, len, __sha2_ce_transform);
+
+ return 0;
+}
+
+static int sha256_ce_final(struct digest *desc, u8 *out)
+{
+ struct sha256_ce_state *sctx = digest_ctx(desc);
+
+ sctx->finalize = 0;
+ sha256_base_do_finalize(desc, __sha2_ce_transform);
+ return sha256_base_finish(desc, out);
+}
+
+static struct digest_algo sha224 = {
+ .base = {
+ .name = "sha224",
+ .driver_name = "sha224-ce",
+ .priority = 200,
+ .algo = HASH_ALGO_SHA224,
+ },
+
+ .length = SHA224_DIGEST_SIZE,
+ .init = sha224_base_init,
+ .update = sha256_ce_update,
+ .final = sha256_ce_final,
+ .digest = digest_generic_digest,
+ .verify = digest_generic_verify,
+ .ctx_length = sizeof(struct sha256_ce_state),
+};
+
+static int sha224_ce_digest_register(void)
+{
+ return digest_algo_register(&sha224);
+}
+coredevice_initcall(sha224_ce_digest_register);
+
+static struct digest_algo sha256 = {
+ .base = {
+ .name = "sha256",
+ .driver_name = "sha256-ce",
+ .priority = 200,
+ .algo = HASH_ALGO_SHA256,
+ },
+
+ .length = SHA256_DIGEST_SIZE,
+ .init = sha256_base_init,
+ .update = sha256_ce_update,
+ .final = sha256_ce_final,
+ .digest = digest_generic_digest,
+ .verify = digest_generic_verify,
+ .ctx_length = sizeof(struct sha256_ce_state),
+};
+
+static int sha256_ce_digest_register(void)
+{
+ return digest_algo_register(&sha256);
+}
+coredevice_initcall(sha256_ce_digest_register);
diff --git a/arch/arm/include/asm/neon.h b/arch/arm/include/asm/neon.h
new file mode 100644
index 000000000000..476462e83e80
--- /dev/null
+++ b/arch/arm/include/asm/neon.h
@@ -0,0 +1,8 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+#ifndef __ARM_ASM_NEON_H__
+#define __ARM_ASM_NEON_H__
+
+#define kernel_neon_begin() ((void)0)
+#define kernel_neon_end() ((void)0)
+
+#endif
diff --git a/crypto/Kconfig b/crypto/Kconfig
index f32accb3d090..629f615de1af 100644
--- a/crypto/Kconfig
+++ b/crypto/Kconfig
@@ -86,6 +86,27 @@ config DIGEST_SHA256_ARM
SHA-256 secure hash standard (DFIPS 180-2) implemented
using optimized ARM assembler and NEON, when available.
+config DIGEST_SHA1_ARM64_CE
+ tristate "SHA-1 digest algorithm (ARMv8 Crypto Extensions)"
+ depends on CPU_V8
+ select HAVE_DIGEST_SHA1
+ help
+ SHA-1 secure hash algorithm (FIPS 180)
+
+ Architecture: arm64 using:
+ - ARMv8 Crypto Extensions
+
+config DIGEST_SHA256_ARM64_CE
+ tristate "SHA-224/256 digest algorithm (ARMv8 Crypto Extensions)"
+ depends on CPU_V8
+ select HAVE_DIGEST_SHA256
+ select HAVE_DIGEST_SHA224
+ help
+ SHA-224 and SHA-256 secure hash algorithms (FIPS 180)
+
+ Architecture: arm64 using:
+ - ARMv8 Crypto Extensions
+
endif
config CRYPTO_PBKDF2
diff --git a/include/crypto/sha.h b/include/crypto/sha.h
index b01d74cd3334..e23d7cb76692 100644
--- a/include/crypto/sha.h
+++ b/include/crypto/sha.h
@@ -66,6 +66,10 @@
#define SHA512_H6 0x1f83d9abfb41bd6bULL
#define SHA512_H7 0x5be0cd19137e2179ULL
+/*
+ * State must be first member for compatibility with assembly
+ * code imported from Linux
+ */
struct sha1_state {
u32 state[SHA1_DIGEST_SIZE / 4];
u64 count;
diff --git a/include/crypto/sha1_base.h b/include/crypto/sha1_base.h
new file mode 100644
index 000000000000..8e1a5fdcc865
--- /dev/null
+++ b/include/crypto/sha1_base.h
@@ -0,0 +1,104 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * sha1_base.h - core logic for SHA-1 implementations
+ *
+ * Copyright (C) 2015 Linaro Ltd <ard.biesheuvel@linaro.org>
+ */
+
+#ifndef _CRYPTO_SHA1_BASE_H
+#define _CRYPTO_SHA1_BASE_H
+
+#include <digest.h>
+#include <crypto/sha.h>
+#include <linux/string.h>
+
+#include <asm/unaligned.h>
+
+typedef void (sha1_block_fn)(struct sha1_state *sst, u8 const *src, int blocks);
+
+static inline int sha1_base_init(struct digest *desc)
+{
+ struct sha1_state *sctx = digest_ctx(desc);
+
+ *sctx = (struct sha1_state){
+ .state = { SHA1_H0, SHA1_H1, SHA1_H2, SHA1_H3, SHA1_H4 },
+ };
+
+ return 0;
+}
+
+static inline int sha1_base_do_update(struct digest *desc,
+ const u8 *data,
+ unsigned int len,
+ sha1_block_fn *block_fn)
+{
+ struct sha1_state *sctx = digest_ctx(desc);
+ unsigned int partial = sctx->count % SHA1_BLOCK_SIZE;
+
+ sctx->count += len;
+
+ if (unlikely((partial + len) >= SHA1_BLOCK_SIZE)) {
+ int blocks;
+
+ if (partial) {
+ int p = SHA1_BLOCK_SIZE - partial;
+
+ memcpy(sctx->buffer + partial, data, p);
+ data += p;
+ len -= p;
+
+ block_fn(sctx, sctx->buffer, 1);
+ }
+
+ blocks = len / SHA1_BLOCK_SIZE;
+ len %= SHA1_BLOCK_SIZE;
+
+ if (blocks) {
+ block_fn(sctx, data, blocks);
+ data += blocks * SHA1_BLOCK_SIZE;
+ }
+ partial = 0;
+ }
+ if (len)
+ memcpy(sctx->buffer + partial, data, len);
+
+ return 0;
+}
+
+static inline int sha1_base_do_finalize(struct digest *desc,
+ sha1_block_fn *block_fn)
+{
+ const int bit_offset = SHA1_BLOCK_SIZE - sizeof(__be64);
+ struct sha1_state *sctx = digest_ctx(desc);
+ __be64 *bits = (__be64 *)(sctx->buffer + bit_offset);
+ unsigned int partial = sctx->count % SHA1_BLOCK_SIZE;
+
+ sctx->buffer[partial++] = 0x80;
+ if (partial > bit_offset) {
+ memset(sctx->buffer + partial, 0x0, SHA1_BLOCK_SIZE - partial);
+ partial = 0;
+
+ block_fn(sctx, sctx->buffer, 1);
+ }
+
+ memset(sctx->buffer + partial, 0x0, bit_offset - partial);
+ *bits = cpu_to_be64(sctx->count << 3);
+ block_fn(sctx, sctx->buffer, 1);
+
+ return 0;
+}
+
+static inline int sha1_base_finish(struct digest *desc, u8 *out)
+{
+ struct sha1_state *sctx = digest_ctx(desc);
+ __be32 *digest = (__be32 *)out;
+ int i;
+
+ for (i = 0; i < SHA1_DIGEST_SIZE / sizeof(__be32); i++)
+ put_unaligned_be32(sctx->state[i], digest++);
+
+ memzero_explicit(sctx, sizeof(*sctx));
+ return 0;
+}
+
+#endif /* _CRYPTO_SHA1_BASE_H */
diff --git a/include/crypto/sha256_base.h b/include/crypto/sha256_base.h
new file mode 100644
index 000000000000..b9e48eb942d3
--- /dev/null
+++ b/include/crypto/sha256_base.h
@@ -0,0 +1,129 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * sha256_base.h - core logic for SHA-256 implementations
+ *
+ * Copyright (C) 2015 Linaro Ltd <ard.biesheuvel@linaro.org>
+ */
+
+#ifndef _CRYPTO_SHA256_BASE_H
+#define _CRYPTO_SHA256_BASE_H
+
+#include <digest.h>
+#include <crypto/sha.h>
+#include <linux/string.h>
+
+#include <asm/unaligned.h>
+
+typedef void (sha256_block_fn)(struct sha256_state *sst, u8 const *src,
+ int blocks);
+
+static inline int sha224_base_init(struct digest *desc)
+{
+ struct sha256_state *sctx = digest_ctx(desc);
+
+ sctx->state[0] = SHA224_H0;
+ sctx->state[1] = SHA224_H1;
+ sctx->state[2] = SHA224_H2;
+ sctx->state[3] = SHA224_H3;
+ sctx->state[4] = SHA224_H4;
+ sctx->state[5] = SHA224_H5;
+ sctx->state[6] = SHA224_H6;
+ sctx->state[7] = SHA224_H7;
+ sctx->count = 0;
+
+ return 0;
+}
+
+static inline int sha256_base_init(struct digest *desc)
+{
+ struct sha256_state *sctx = digest_ctx(desc);
+
+ sctx->state[0] = SHA256_H0;
+ sctx->state[1] = SHA256_H1;
+ sctx->state[2] = SHA256_H2;
+ sctx->state[3] = SHA256_H3;
+ sctx->state[4] = SHA256_H4;
+ sctx->state[5] = SHA256_H5;
+ sctx->state[6] = SHA256_H6;
+ sctx->state[7] = SHA256_H7;
+ sctx->count = 0;
+
+ return 0;
+}
+
+static inline int sha256_base_do_update(struct digest *desc,
+ const u8 *data,
+ unsigned int len,
+ sha256_block_fn *block_fn)
+{
+ struct sha256_state *sctx = digest_ctx(desc);
+ unsigned int partial = sctx->count % SHA256_BLOCK_SIZE;
+
+ sctx->count += len;
+
+ if (unlikely((partial + len) >= SHA256_BLOCK_SIZE)) {
+ int blocks;
+
+ if (partial) {
+ int p = SHA256_BLOCK_SIZE - partial;
+
+ memcpy(sctx->buf + partial, data, p);
+ data += p;
+ len -= p;
+
+ block_fn(sctx, sctx->buf, 1);
+ }
+
+ blocks = len / SHA256_BLOCK_SIZE;
+ len %= SHA256_BLOCK_SIZE;
+
+ if (blocks) {
+ block_fn(sctx, data, blocks);
+ data += blocks * SHA256_BLOCK_SIZE;
+ }
+ partial = 0;
+ }
+ if (len)
+ memcpy(sctx->buf + partial, data, len);
+
+ return 0;
+}
+
+static inline int sha256_base_do_finalize(struct digest *desc,
+ sha256_block_fn *block_fn)
+{
+ const int bit_offset = SHA256_BLOCK_SIZE - sizeof(__be64);
+ struct sha256_state *sctx = digest_ctx(desc);
+ __be64 *bits = (__be64 *)(sctx->buf + bit_offset);
+ unsigned int partial = sctx->count % SHA256_BLOCK_SIZE;
+
+ sctx->buf[partial++] = 0x80;
+ if (partial > bit_offset) {
+ memset(sctx->buf + partial, 0x0, SHA256_BLOCK_SIZE - partial);
+ partial = 0;
+
+ block_fn(sctx, sctx->buf, 1);
+ }
+
+ memset(sctx->buf + partial, 0x0, bit_offset - partial);
+ *bits = cpu_to_be64(sctx->count << 3);
+ block_fn(sctx, sctx->buf, 1);
+
+ return 0;
+}
+
+static inline int sha256_base_finish(struct digest *desc, u8 *out)
+{
+ unsigned int digest_size = digest_length(desc);
+ struct sha256_state *sctx = digest_ctx(desc);
+ __be32 *digest = (__be32 *)out;
+ int i;
+
+ for (i = 0; digest_size > 0; i++, digest_size -= sizeof(__be32))
+ put_unaligned_be32(sctx->state[i], digest++);
+
+ memzero_explicit(sctx, sizeof(*sctx));
+ return 0;
+}
+
+#endif /* _CRYPTO_SHA256_BASE_H */
diff --git a/include/linux/barebox-wrapper.h b/include/linux/barebox-wrapper.h
index 28e87cb17316..ed237877fc75 100644
--- a/include/linux/barebox-wrapper.h
+++ b/include/linux/barebox-wrapper.h
@@ -22,6 +22,7 @@ static inline void vfree(const void *addr)
#define MODULE_ALIAS(x)
#define MODULE_DEVICE_TABLE(bus, table)
#define MODULE_ALIAS_DSA_TAG_DRIVER(drv)
+#define MODULE_ALIAS_CRYPTO(alias)
#define __user
#define __init
diff --git a/include/linux/string.h b/include/linux/string.h
index cd81ab13965b..75c8cf818b39 100644
--- a/include/linux/string.h
+++ b/include/linux/string.h
@@ -113,6 +113,26 @@ extern char *strim(char *);
void *memchr_inv(const void *start, int c, size_t bytes);
+/**
+ * memzero_explicit - Fill a region of memory (e.g. sensitive
+ * keying data) with 0s.
+ * @s: Pointer to the start of the area.
+ * @count: The size of the area.
+ *
+ * Note: usually using memset() is just fine (!), but in cases
+ * where clearing out _local_ data at the end of a scope is
+ * necessary, memzero_explicit() should be used instead in
+ * order to prevent the compiler from optimising away zeroing.
+ *
+ * memzero_explicit() doesn't need an arch-specific version as
+ * it just invokes the one of memset() implicitly.
+ */
+static inline void memzero_explicit(void *s, size_t count)
+{
+ memset(s, 0, count);
+ barrier_data(s);
+}
+
/**
* kbasename - return the last part of a pathname.
*
diff --git a/test/self/digest.c b/test/self/digest.c
index 769444ad15ce..4cda5b09637b 100644
--- a/test/self/digest.c
+++ b/test/self/digest.c
@@ -141,6 +141,7 @@ static void test_digests_sha12(const char *suffix)
cond = !strcmp(suffix, "generic") ? IS_ENABLED(CONFIG_DIGEST_SHA224_GENERIC) :
!strcmp(suffix, "asm") ? IS_ENABLED(CONFIG_DIGEST_SHA256_ARM) :
+ !strcmp(suffix, "ce") ? IS_ENABLED(CONFIG_DIGEST_SHA256_ARM64_CE) :
IS_ENABLED(CONFIG_HAVE_DIGEST_SHA224);
test_digest(cond, digest_suffix("sha224", suffix),
@@ -151,6 +152,7 @@ static void test_digests_sha12(const char *suffix)
cond = !strcmp(suffix, "generic") ? IS_ENABLED(CONFIG_DIGEST_SHA256_GENERIC) :
!strcmp(suffix, "asm") ? IS_ENABLED(CONFIG_DIGEST_SHA256_ARM) :
+ !strcmp(suffix, "ce") ? IS_ENABLED(CONFIG_DIGEST_SHA256_ARM64_CE) :
IS_ENABLED(CONFIG_HAVE_DIGEST_SHA256);
test_digest(cond, digest_suffix("sha256", suffix),
--
2.39.2
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