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authorLinus Torvalds <torvalds@linux-foundation.org>2025-05-26 13:47:28 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2025-05-26 13:47:28 -0700
commit14418ddcc2c2055743ac7ee53d5ac2cf8a8660a7 (patch)
tree4edb44583a986dce31f537ff3d55032118b2db3e /arch/sparc/lib
parentMerge tag 'crc-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiggers/linux (diff)
parentx86/fpu: Fix irq_fpu_usable() to return false during CPU onlining (diff)
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Merge tag 'v6.16-p1' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6
Pull crypto updates from Herbert Xu: "API: - Fix memcpy_sglist to handle partially overlapping SG lists - Use memcpy_sglist to replace null skcipher - Rename CRYPTO_TESTS to CRYPTO_BENCHMARK - Flip CRYPTO_MANAGER_DISABLE_TEST into CRYPTO_SELFTESTS - Hide CRYPTO_MANAGER - Add delayed freeing of driver crypto_alg structures Compression: - Allocate large buffers on first use instead of initialisation in scomp - Drop destination linearisation buffer in scomp - Move scomp stream allocation into acomp - Add acomp scatter-gather walker - Remove request chaining - Add optional async request allocation Hashing: - Remove request chaining - Add optional async request allocation - Move partial block handling into API - Add ahash support to hmac - Fix shash documentation to disallow usage in hard IRQs Algorithms: - Remove unnecessary SIMD fallback code on x86 and arm/arm64 - Drop avx10_256 xts(aes)/ctr(aes) on x86 - Improve avx-512 optimisations for xts(aes) - Move chacha arch implementations into lib/crypto - Move poly1305 into lib/crypto and drop unused Crypto API algorithm - Disable powerpc/poly1305 as it has no SIMD fallback - Move sha256 arch implementations into lib/crypto - Convert deflate to acomp - Set block size correctly in cbcmac Drivers: - Do not use sg_dma_len before mapping in sun8i-ss - Fix warm-reboot failure by making shutdown do more work in qat - Add locking in zynqmp-sha - Remove cavium/zip - Add support for PCI device 0x17D8 to ccp - Add qat_6xxx support in qat - Add support for RK3576 in rockchip-rng - Add support for i.MX8QM in caam Others: - Fix irq_fpu_usable/kernel_fpu_begin inconsistency during CPU bring-up - Add new SEV/SNP platform shutdown API in ccp" * tag 'v6.16-p1' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: (382 commits) x86/fpu: Fix irq_fpu_usable() to return false during CPU onlining crypto: qat - add missing header inclusion crypto: api - Redo lookup on EEXIST Revert "crypto: testmgr - Add hash export format testing" crypto: marvell/cesa - Do not chain submitted requests crypto: powerpc/poly1305 - add depends on BROKEN for now Revert "crypto: powerpc/poly1305 - Add SIMD fallback" crypto: ccp - Add missing tee info reg for teev2 crypto: ccp - Add missing bootloader info reg for pspv5 crypto: sun8i-ce - move fallback ahash_request to the end of the struct crypto: octeontx2 - Use dynamic allocated memory region for lmtst crypto: octeontx2 - Initialize cptlfs device info once crypto: xts - Only add ecb if it is not already there crypto: lrw - Only add ecb if it is not already there crypto: testmgr - Add hash export format testing crypto: testmgr - Use ahash for generic tfm crypto: hmac - Add ahash support crypto: testmgr - Ignore EEXIST on shash allocation crypto: algapi - Add driver template support to crypto_inst_setname crypto: shash - Set reqsize in shash_alg ...
Diffstat (limited to 'arch/sparc/lib')
-rw-r--r--arch/sparc/lib/Makefile1
-rw-r--r--arch/sparc/lib/crc32c_asm.S3
-rw-r--r--arch/sparc/lib/crypto/Kconfig8
-rw-r--r--arch/sparc/lib/crypto/Makefile4
-rw-r--r--arch/sparc/lib/crypto/sha256.c64
-rw-r--r--arch/sparc/lib/crypto/sha256_asm.S78
6 files changed, 156 insertions, 2 deletions
diff --git a/arch/sparc/lib/Makefile b/arch/sparc/lib/Makefile
index ef8860eb3f3d..5cf9781d68b4 100644
--- a/arch/sparc/lib/Makefile
+++ b/arch/sparc/lib/Makefile
@@ -4,6 +4,7 @@
asflags-y := -ansi -DST_DIV0=0x02
+obj-y += crypto/
lib-$(CONFIG_SPARC32) += ashrdi3.o
lib-$(CONFIG_SPARC32) += memcpy.o memset.o
lib-y += strlen.o
diff --git a/arch/sparc/lib/crc32c_asm.S b/arch/sparc/lib/crc32c_asm.S
index ee454fa6aed6..4db873850f44 100644
--- a/arch/sparc/lib/crc32c_asm.S
+++ b/arch/sparc/lib/crc32c_asm.S
@@ -1,10 +1,9 @@
/* SPDX-License-Identifier: GPL-2.0 */
#include <linux/linkage.h>
+#include <asm/opcodes.h>
#include <asm/visasm.h>
#include <asm/asi.h>
-#include "../crypto/opcodes.h"
-
ENTRY(crc32c_sparc64)
/* %o0=crc32p, %o1=data_ptr, %o2=len */
VISEntryHalf
diff --git a/arch/sparc/lib/crypto/Kconfig b/arch/sparc/lib/crypto/Kconfig
new file mode 100644
index 000000000000..e5c3e4d3dba6
--- /dev/null
+++ b/arch/sparc/lib/crypto/Kconfig
@@ -0,0 +1,8 @@
+# SPDX-License-Identifier: GPL-2.0-only
+
+config CRYPTO_SHA256_SPARC64
+ tristate
+ depends on SPARC64
+ default CRYPTO_LIB_SHA256
+ select CRYPTO_ARCH_HAVE_LIB_SHA256
+ select CRYPTO_LIB_SHA256_GENERIC
diff --git a/arch/sparc/lib/crypto/Makefile b/arch/sparc/lib/crypto/Makefile
new file mode 100644
index 000000000000..75ee244ad6f7
--- /dev/null
+++ b/arch/sparc/lib/crypto/Makefile
@@ -0,0 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0-only
+
+obj-$(CONFIG_CRYPTO_SHA256_SPARC64) += sha256-sparc64.o
+sha256-sparc64-y := sha256.o sha256_asm.o
diff --git a/arch/sparc/lib/crypto/sha256.c b/arch/sparc/lib/crypto/sha256.c
new file mode 100644
index 000000000000..8bdec2db08b3
--- /dev/null
+++ b/arch/sparc/lib/crypto/sha256.c
@@ -0,0 +1,64 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * SHA-256 accelerated using the sparc64 sha256 opcodes
+ *
+ * Copyright (c) Jean-Luc Cooke <jlcooke@certainkey.com>
+ * Copyright (c) Andrew McDonald <andrew@mcdonald.org.uk>
+ * Copyright (c) 2002 James Morris <jmorris@intercode.com.au>
+ * SHA224 Support Copyright 2007 Intel Corporation <jonathan.lynch@intel.com>
+ */
+
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
+#include <asm/elf.h>
+#include <asm/opcodes.h>
+#include <asm/pstate.h>
+#include <crypto/internal/sha2.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+
+static __ro_after_init DEFINE_STATIC_KEY_FALSE(have_sha256_opcodes);
+
+asmlinkage void sha256_sparc64_transform(u32 state[SHA256_STATE_WORDS],
+ const u8 *data, size_t nblocks);
+
+void sha256_blocks_arch(u32 state[SHA256_STATE_WORDS],
+ const u8 *data, size_t nblocks)
+{
+ if (static_branch_likely(&have_sha256_opcodes))
+ sha256_sparc64_transform(state, data, nblocks);
+ else
+ sha256_blocks_generic(state, data, nblocks);
+}
+EXPORT_SYMBOL_GPL(sha256_blocks_arch);
+
+bool sha256_is_arch_optimized(void)
+{
+ return static_key_enabled(&have_sha256_opcodes);
+}
+EXPORT_SYMBOL_GPL(sha256_is_arch_optimized);
+
+static int __init sha256_sparc64_mod_init(void)
+{
+ unsigned long cfr;
+
+ if (!(sparc64_elf_hwcap & HWCAP_SPARC_CRYPTO))
+ return 0;
+
+ __asm__ __volatile__("rd %%asr26, %0" : "=r" (cfr));
+ if (!(cfr & CFR_SHA256))
+ return 0;
+
+ static_branch_enable(&have_sha256_opcodes);
+ pr_info("Using sparc64 sha256 opcode optimized SHA-256/SHA-224 implementation\n");
+ return 0;
+}
+subsys_initcall(sha256_sparc64_mod_init);
+
+static void __exit sha256_sparc64_mod_exit(void)
+{
+}
+module_exit(sha256_sparc64_mod_exit);
+
+MODULE_LICENSE("GPL");
+MODULE_DESCRIPTION("SHA-256 accelerated using the sparc64 sha256 opcodes");
diff --git a/arch/sparc/lib/crypto/sha256_asm.S b/arch/sparc/lib/crypto/sha256_asm.S
new file mode 100644
index 000000000000..ddcdd3daf31e
--- /dev/null
+++ b/arch/sparc/lib/crypto/sha256_asm.S
@@ -0,0 +1,78 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#include <linux/linkage.h>
+#include <asm/opcodes.h>
+#include <asm/visasm.h>
+
+ENTRY(sha256_sparc64_transform)
+ /* %o0 = state, %o1 = data, %o2 = nblocks */
+ VISEntryHalf
+ ld [%o0 + 0x00], %f0
+ ld [%o0 + 0x04], %f1
+ ld [%o0 + 0x08], %f2
+ ld [%o0 + 0x0c], %f3
+ ld [%o0 + 0x10], %f4
+ ld [%o0 + 0x14], %f5
+ andcc %o1, 0x7, %g0
+ ld [%o0 + 0x18], %f6
+ bne,pn %xcc, 10f
+ ld [%o0 + 0x1c], %f7
+
+1:
+ ldd [%o1 + 0x00], %f8
+ ldd [%o1 + 0x08], %f10
+ ldd [%o1 + 0x10], %f12
+ ldd [%o1 + 0x18], %f14
+ ldd [%o1 + 0x20], %f16
+ ldd [%o1 + 0x28], %f18
+ ldd [%o1 + 0x30], %f20
+ ldd [%o1 + 0x38], %f22
+
+ SHA256
+
+ subcc %o2, 1, %o2
+ bne,pt %xcc, 1b
+ add %o1, 0x40, %o1
+
+5:
+ st %f0, [%o0 + 0x00]
+ st %f1, [%o0 + 0x04]
+ st %f2, [%o0 + 0x08]
+ st %f3, [%o0 + 0x0c]
+ st %f4, [%o0 + 0x10]
+ st %f5, [%o0 + 0x14]
+ st %f6, [%o0 + 0x18]
+ st %f7, [%o0 + 0x1c]
+ retl
+ VISExitHalf
+10:
+ alignaddr %o1, %g0, %o1
+
+ ldd [%o1 + 0x00], %f10
+1:
+ ldd [%o1 + 0x08], %f12
+ ldd [%o1 + 0x10], %f14
+ ldd [%o1 + 0x18], %f16
+ ldd [%o1 + 0x20], %f18
+ ldd [%o1 + 0x28], %f20
+ ldd [%o1 + 0x30], %f22
+ ldd [%o1 + 0x38], %f24
+ ldd [%o1 + 0x40], %f26
+
+ faligndata %f10, %f12, %f8
+ faligndata %f12, %f14, %f10
+ faligndata %f14, %f16, %f12
+ faligndata %f16, %f18, %f14
+ faligndata %f18, %f20, %f16
+ faligndata %f20, %f22, %f18
+ faligndata %f22, %f24, %f20
+ faligndata %f24, %f26, %f22
+
+ SHA256
+
+ subcc %o2, 1, %o2
+ fsrc2 %f26, %f10
+ bne,pt %xcc, 1b
+ add %o1, 0x40, %o1
+
+ ba,a,pt %xcc, 5b
+ENDPROC(sha256_sparc64_transform)