This commit removes the PowerPC optimized MD5 code.
Signed-off-by: Eric Biggers <ebigg...@kernel.org>
---
arch/powerpc/configs/powernv_defconfig | 1 -
arch/powerpc/configs/ppc64_defconfig | 1 -
arch/powerpc/crypto/Kconfig | 8 -
arch/powerpc/crypto/Makefile | 2 -
arch/powerpc/crypto/md5-asm.S | 235 -------------------------
arch/powerpc/crypto/md5-glue.c | 99 -----------
6 files changed, 346 deletions(-)
delete mode 100644 arch/powerpc/crypto/md5-asm.S
delete mode 100644 arch/powerpc/crypto/md5-glue.c
diff --git a/arch/powerpc/configs/powernv_defconfig
b/arch/powerpc/configs/powernv_defconfig
index d06388b0f66e3..bd4685612de6d 100644
--- a/arch/powerpc/configs/powernv_defconfig
+++ b/arch/powerpc/configs/powernv_defconfig
@@ -318,11 +318,10 @@ CONFIG_FTR_FIXUP_SELFTEST=y
CONFIG_MSI_BITMAP_SELFTEST=y
CONFIG_XMON=y
CONFIG_CRYPTO_BENCHMARK=m
CONFIG_CRYPTO_PCBC=m
CONFIG_CRYPTO_HMAC=y
-CONFIG_CRYPTO_MD5_PPC=m
CONFIG_CRYPTO_MICHAEL_MIC=m
CONFIG_CRYPTO_SHA256=y
CONFIG_CRYPTO_WP512=m
CONFIG_CRYPTO_ANUBIS=m
CONFIG_CRYPTO_BLOWFISH=m
diff --git a/arch/powerpc/configs/ppc64_defconfig
b/arch/powerpc/configs/ppc64_defconfig
index ce34597e9f3e1..2d92c11eea7e4 100644
--- a/arch/powerpc/configs/ppc64_defconfig
+++ b/arch/powerpc/configs/ppc64_defconfig
@@ -385,11 +385,10 @@ CONFIG_CRYPTO_TWOFISH=m
CONFIG_CRYPTO_PCBC=m
CONFIG_CRYPTO_MICHAEL_MIC=m
CONFIG_CRYPTO_SHA256=y
CONFIG_CRYPTO_WP512=m
CONFIG_CRYPTO_LZO=m
-CONFIG_CRYPTO_MD5_PPC=m
CONFIG_CRYPTO_AES_GCM_P10=m
CONFIG_CRYPTO_DEV_NX=y
CONFIG_CRYPTO_DEV_NX_ENCRYPT=m
CONFIG_CRYPTO_DEV_VMX=y
CONFIG_SYSTEM_TRUSTED_KEYRING=y
diff --git a/arch/powerpc/crypto/Kconfig b/arch/powerpc/crypto/Kconfig
index cfe39fc221cf8..f4b779c7352de 100644
--- a/arch/powerpc/crypto/Kconfig
+++ b/arch/powerpc/crypto/Kconfig
@@ -13,18 +13,10 @@ config CRYPTO_CURVE25519_PPC64
Curve25519 algorithm
Architecture: PowerPC64
- Little-endian
-config CRYPTO_MD5_PPC
- tristate "Digests: MD5"
- select CRYPTO_HASH
- help
- MD5 message digest algorithm (RFC1321)
-
- Architecture: powerpc
-
config CRYPTO_AES_PPC_SPE
tristate "Ciphers: AES, modes: ECB/CBC/CTR/XTS (SPE)"
depends on SPE
select CRYPTO_SKCIPHER
help
diff --git a/arch/powerpc/crypto/Makefile b/arch/powerpc/crypto/Makefile
index bc8fd27344b8b..9eb59dce67f36 100644
--- a/arch/powerpc/crypto/Makefile
+++ b/arch/powerpc/crypto/Makefile
@@ -4,17 +4,15 @@
#
# Arch-specific CryptoAPI modules.
#
obj-$(CONFIG_CRYPTO_AES_PPC_SPE) += aes-ppc-spe.o
-obj-$(CONFIG_CRYPTO_MD5_PPC) += md5-ppc.o
obj-$(CONFIG_CRYPTO_AES_GCM_P10) += aes-gcm-p10-crypto.o
obj-$(CONFIG_CRYPTO_DEV_VMX_ENCRYPT) += vmx-crypto.o
obj-$(CONFIG_CRYPTO_CURVE25519_PPC64) += curve25519-ppc64le.o
aes-ppc-spe-y := aes-spe-core.o aes-spe-keys.o aes-tab-4k.o aes-spe-modes.o aes-spe-glue.o
-md5-ppc-y := md5-asm.o md5-glue.o
aes-gcm-p10-crypto-y := aes-gcm-p10-glue.o aes-gcm-p10.o ghashp10-ppc.o
aesp10-ppc.o
vmx-crypto-objs := vmx.o aesp8-ppc.o ghashp8-ppc.o aes.o aes_cbc.o aes_ctr.o
aes_xts.o ghash.o
curve25519-ppc64le-y := curve25519-ppc64le-core.o curve25519-ppc64le_asm.o
ifeq ($(CONFIG_CPU_LITTLE_ENDIAN),y)
diff --git a/arch/powerpc/crypto/md5-asm.S b/arch/powerpc/crypto/md5-asm.S
deleted file mode 100644
index fa6bc440cf4ac..0000000000000
--- a/arch/powerpc/crypto/md5-asm.S
+++ /dev/null
@@ -1,235 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0-or-later */
-/*
- * Fast MD5 implementation for PPC
- *
- * Copyright (c) 2015 Markus Stockhausen <stockhau...@collogia.de>
- */
-#include <asm/ppc_asm.h>
-#include <asm/asm-offsets.h>
-#include <asm/asm-compat.h>
-
-#define rHP r3
-#define rWP r4
-
-#define rH0 r0
-#define rH1 r6
-#define rH2 r7
-#define rH3 r5
-
-#define rW00 r8
-#define rW01 r9
-#define rW02 r10
-#define rW03 r11
-#define rW04 r12
-#define rW05 r14
-#define rW06 r15
-#define rW07 r16
-#define rW08 r17
-#define rW09 r18
-#define rW10 r19
-#define rW11 r20
-#define rW12 r21
-#define rW13 r22
-#define rW14 r23
-#define rW15 r24
-
-#define rT0 r25
-#define rT1 r26
-
-#define INITIALIZE \
- PPC_STLU r1,-INT_FRAME_SIZE(r1); \
- SAVE_GPRS(14, 26, r1) /* push registers onto stack */
-
-#define FINALIZE \
- REST_GPRS(14, 26, r1); /* pop registers from stack */ \
- addi r1,r1,INT_FRAME_SIZE
-
-#ifdef __BIG_ENDIAN__
-#define LOAD_DATA(reg, off) \
- lwbrx reg,0,rWP; /* load data */
-#define INC_PTR \
- addi rWP,rWP,4; /* increment per word */
-#define NEXT_BLOCK /* nothing to do */
-#else
-#define LOAD_DATA(reg, off) \
- lwz reg,off(rWP); /* load data */
-#define INC_PTR /* nothing to do
*/
-#define NEXT_BLOCK \
- addi rWP,rWP,64; /* increment per block */
-#endif
-
-#define R_00_15(a, b, c, d, w0, w1, p, q, off, k0h, k0l, k1h, k1l) \
- LOAD_DATA(w0, off) /* W */ \
- and rT0,b,c; /* 1: f = b and c */ \
- INC_PTR /* ptr++ */ \
- andc rT1,d,b; /* 1: f' = ~b and d */ \
- LOAD_DATA(w1, off+4) /* W */ \
- or rT0,rT0,rT1; /* 1: f = f or f' */ \
- addi w0,w0,k0l; /* 1: wk = w + k */ \
- add a,a,rT0; /* 1: a = a + f */ \
- addis w0,w0,k0h; /* 1: wk = w + k' */ \
- addis w1,w1,k1h; /* 2: wk = w + k */ \
- add a,a,w0; /* 1: a = a + wk */ \
- addi w1,w1,k1l; /* 2: wk = w + k' */ \
- rotrwi a,a,p; /* 1: a = a rotl x */ \
- add d,d,w1; /* 2: a = a + wk */ \
- add a,a,b; /* 1: a = a + b */ \
- and rT0,a,b; /* 2: f = b and c */ \
- andc rT1,c,a; /* 2: f' = ~b and d */ \
- or rT0,rT0,rT1; /* 2: f = f or f' */ \
- add d,d,rT0; /* 2: a = a + f */ \
- INC_PTR /* ptr++ */ \
- rotrwi d,d,q; /* 2: a = a rotl x */ \
- add d,d,a; /* 2: a = a + b */
-
-#define R_16_31(a, b, c, d, w0, w1, p, q, k0h, k0l, k1h, k1l) \
- andc rT0,c,d; /* 1: f = c and ~d */ \
- and rT1,b,d; /* 1: f' = b and d */ \
- addi w0,w0,k0l; /* 1: wk = w + k */ \
- or rT0,rT0,rT1; /* 1: f = f or f' */ \
- addis w0,w0,k0h; /* 1: wk = w + k' */ \
- add a,a,rT0; /* 1: a = a + f */ \
- addi w1,w1,k1l; /* 2: wk = w + k */ \
- add a,a,w0; /* 1: a = a + wk */ \
- addis w1,w1,k1h; /* 2: wk = w + k' */ \
- andc rT0,b,c; /* 2: f = c and ~d */ \
- rotrwi a,a,p; /* 1: a = a rotl x */ \
- add a,a,b; /* 1: a = a + b */ \
- add d,d,w1; /* 2: a = a + wk */ \
- and rT1,a,c; /* 2: f' = b and d */ \
- or rT0,rT0,rT1; /* 2: f = f or f' */ \
- add d,d,rT0; /* 2: a = a + f */ \
- rotrwi d,d,q; /* 2: a = a rotl x */ \
- add d,d,a; /* 2: a = a +b */
-
-#define R_32_47(a, b, c, d, w0, w1, p, q, k0h, k0l, k1h, k1l) \
- xor rT0,b,c; /* 1: f' = b xor c */ \
- addi w0,w0,k0l; /* 1: wk = w + k */ \
- xor rT1,rT0,d; /* 1: f = f xor f' */ \
- addis w0,w0,k0h; /* 1: wk = w + k' */ \
- add a,a,rT1; /* 1: a = a + f */ \
- addi w1,w1,k1l; /* 2: wk = w + k */ \
- add a,a,w0; /* 1: a = a + wk */ \
- addis w1,w1,k1h; /* 2: wk = w + k' */ \
- rotrwi a,a,p; /* 1: a = a rotl x */ \
- add d,d,w1; /* 2: a = a + wk */ \
- add a,a,b; /* 1: a = a + b */ \
- xor rT1,rT0,a; /* 2: f = b xor f' */ \
- add d,d,rT1; /* 2: a = a + f */ \
- rotrwi d,d,q; /* 2: a = a rotl x */ \
- add d,d,a; /* 2: a = a + b */
-
-#define R_48_63(a, b, c, d, w0, w1, p, q, k0h, k0l, k1h, k1l) \
- addi w0,w0,k0l; /* 1: w = w + k */ \
- orc rT0,b,d; /* 1: f = b or ~d */ \
- addis w0,w0,k0h; /* 1: w = w + k' */ \
- xor rT0,rT0,c; /* 1: f = f xor c */ \
- add a,a,w0; /* 1: a = a + wk */ \
- addi w1,w1,k1l; /* 2: w = w + k */ \
- add a,a,rT0; /* 1: a = a + f */ \
- addis w1,w1,k1h; /* 2: w = w + k' */ \
- rotrwi a,a,p; /* 1: a = a rotl x */ \
- add a,a,b; /* 1: a = a + b */ \
- orc rT0,a,c; /* 2: f = b or ~d */ \
- add d,d,w1; /* 2: a = a + wk */ \
- xor rT0,rT0,b; /* 2: f = f xor c */ \
- add d,d,rT0; /* 2: a = a + f */ \
- rotrwi d,d,q; /* 2: a = a rotl x */ \
- add d,d,a; /* 2: a = a + b */
-
-_GLOBAL(ppc_md5_transform)
- INITIALIZE
-
- mtctr r5
- lwz rH0,0(rHP)
- lwz rH1,4(rHP)
- lwz rH2,8(rHP)
- lwz rH3,12(rHP)
-
-ppc_md5_main:
- R_00_15(rH0, rH1, rH2, rH3, rW00, rW01, 25, 20, 0,
- 0xd76b, -23432, 0xe8c8, -18602)
- R_00_15(rH2, rH3, rH0, rH1, rW02, rW03, 15, 10, 8,
- 0x2420, 0x70db, 0xc1be, -12562)
- R_00_15(rH0, rH1, rH2, rH3, rW04, rW05, 25, 20, 16,
- 0xf57c, 0x0faf, 0x4788, -14806)
- R_00_15(rH2, rH3, rH0, rH1, rW06, rW07, 15, 10, 24,
- 0xa830, 0x4613, 0xfd47, -27391)
- R_00_15(rH0, rH1, rH2, rH3, rW08, rW09, 25, 20, 32,
- 0x6981, -26408, 0x8b45, -2129)
- R_00_15(rH2, rH3, rH0, rH1, rW10, rW11, 15, 10, 40,
- 0xffff, 0x5bb1, 0x895d, -10306)
- R_00_15(rH0, rH1, rH2, rH3, rW12, rW13, 25, 20, 48,
- 0x6b90, 0x1122, 0xfd98, 0x7193)
- R_00_15(rH2, rH3, rH0, rH1, rW14, rW15, 15, 10, 56,
- 0xa679, 0x438e, 0x49b4, 0x0821)
-
- R_16_31(rH0, rH1, rH2, rH3, rW01, rW06, 27, 23,
- 0x0d56, 0x6e0c, 0x1810, 0x6d2d)
- R_16_31(rH2, rH3, rH0, rH1, rW11, rW00, 18, 12,
- 0x9d02, -32109, 0x124c, 0x2332)
- R_16_31(rH0, rH1, rH2, rH3, rW05, rW10, 27, 23,
- 0x8ea7, 0x4a33, 0x0245, -18270)
- R_16_31(rH2, rH3, rH0, rH1, rW15, rW04, 18, 12,
- 0x8eee, -8608, 0xf258, -5095)
- R_16_31(rH0, rH1, rH2, rH3, rW09, rW14, 27, 23,
- 0x969d, -10697, 0x1cbe, -15288)
- R_16_31(rH2, rH3, rH0, rH1, rW03, rW08, 18, 12,
- 0x3317, 0x3e99, 0xdbd9, 0x7c15)
- R_16_31(rH0, rH1, rH2, rH3, rW13, rW02, 27, 23,
- 0xac4b, 0x7772, 0xd8cf, 0x331d)
- R_16_31(rH2, rH3, rH0, rH1, rW07, rW12, 18, 12,
- 0x6a28, 0x6dd8, 0x219a, 0x3b68)
-
- R_32_47(rH0, rH1, rH2, rH3, rW05, rW08, 28, 21,
- 0x29cb, 0x28e5, 0x4218, -7788)
- R_32_47(rH2, rH3, rH0, rH1, rW11, rW14, 16, 9,
- 0x473f, 0x06d1, 0x3aae, 0x3036)
- R_32_47(rH0, rH1, rH2, rH3, rW01, rW04, 28, 21,
- 0xaea1, -15134, 0x640b, -11295)
- R_32_47(rH2, rH3, rH0, rH1, rW07, rW10, 16, 9,
- 0x8f4c, 0x4887, 0xbc7c, -22499)
- R_32_47(rH0, rH1, rH2, rH3, rW13, rW00, 28, 21,
- 0x7eb8, -27199, 0x00ea, 0x6050)
- R_32_47(rH2, rH3, rH0, rH1, rW03, rW06, 16, 9,
- 0xe01a, 0x22fe, 0x4447, 0x69c5)
- R_32_47(rH0, rH1, rH2, rH3, rW09, rW12, 28, 21,
- 0xb7f3, 0x0253, 0x59b1, 0x4d5b)
- R_32_47(rH2, rH3, rH0, rH1, rW15, rW02, 16, 9,
- 0x4701, -27017, 0xc7bd, -19859)
-
- R_48_63(rH0, rH1, rH2, rH3, rW00, rW07, 26, 22,
- 0x0988, -1462, 0x4c70, -19401)
- R_48_63(rH2, rH3, rH0, rH1, rW14, rW05, 17, 11,
- 0xadaf, -5221, 0xfc99, 0x66f7)
- R_48_63(rH0, rH1, rH2, rH3, rW12, rW03, 26, 22,
- 0x7e80, -16418, 0xba1e, -25587)
- R_48_63(rH2, rH3, rH0, rH1, rW10, rW01, 17, 11,
- 0x4130, 0x380d, 0xe0c5, 0x738d)
- lwz rW00,0(rHP)
- R_48_63(rH0, rH1, rH2, rH3, rW08, rW15, 26, 22,
- 0xe837, -30770, 0xde8a, 0x69e8)
- lwz rW14,4(rHP)
- R_48_63(rH2, rH3, rH0, rH1, rW06, rW13, 17, 11,
- 0x9e79, 0x260f, 0x256d, -27941)
- lwz rW12,8(rHP)
- R_48_63(rH0, rH1, rH2, rH3, rW04, rW11, 26, 22,
- 0xab75, -20775, 0x4f9e, -28397)
- lwz rW10,12(rHP)
- R_48_63(rH2, rH3, rH0, rH1, rW02, rW09, 17, 11,
- 0x662b, 0x7c56, 0x11b2, 0x0358)
-
- add rH0,rH0,rW00
- stw rH0,0(rHP)
- add rH1,rH1,rW14
- stw rH1,4(rHP)
- add rH2,rH2,rW12
- stw rH2,8(rHP)
- add rH3,rH3,rW10
- stw rH3,12(rHP)
- NEXT_BLOCK
-
- bdnz ppc_md5_main
-
- FINALIZE
- blr
diff --git a/arch/powerpc/crypto/md5-glue.c b/arch/powerpc/crypto/md5-glue.c
deleted file mode 100644
index 204440a90cd84..0000000000000
--- a/arch/powerpc/crypto/md5-glue.c
+++ /dev/null
@@ -1,99 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-or-later
-/*
- * Glue code for MD5 implementation for PPC assembler
- *
- * Based on generic implementation.
- *
- * Copyright (c) 2015 Markus Stockhausen <stockhau...@collogia.de>
- */
-
-#include <crypto/internal/hash.h>
-#include <crypto/md5.h>
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/string.h>
-
-extern void ppc_md5_transform(u32 *state, const u8 *src, u32 blocks);
-
-static int ppc_md5_init(struct shash_desc *desc)
-{
- struct md5_state *sctx = shash_desc_ctx(desc);
-
- sctx->hash[0] = MD5_H0;
- sctx->hash[1] = MD5_H1;
- sctx->hash[2] = MD5_H2;
- sctx->hash[3] = MD5_H3;
- sctx->byte_count = 0;
-
- return 0;
-}
-
-static int ppc_md5_update(struct shash_desc *desc, const u8 *data,
- unsigned int len)
-{
- struct md5_state *sctx = shash_desc_ctx(desc);
-
- sctx->byte_count += round_down(len, MD5_HMAC_BLOCK_SIZE);
- ppc_md5_transform(sctx->hash, data, len >> 6);
- return len - round_down(len, MD5_HMAC_BLOCK_SIZE);
-}
-
-static int ppc_md5_finup(struct shash_desc *desc, const u8 *src,
- unsigned int offset, u8 *out)
-{
- struct md5_state *sctx = shash_desc_ctx(desc);
- __le64 block[MD5_BLOCK_WORDS] = {};
- u8 *p = memcpy(block, src, offset);
- __le32 *dst = (__le32 *)out;
- __le64 *pbits;
-
- src = p;
- p += offset;
- *p++ = 0x80;
- sctx->byte_count += offset;
- pbits = &block[(MD5_BLOCK_WORDS / (offset > 55 ? 1 : 2)) - 1];
- *pbits = cpu_to_le64(sctx->byte_count << 3);
- ppc_md5_transform(sctx->hash, src, (pbits - block + 1) / 8);
- memzero_explicit(block, sizeof(block));
-
- dst[0] = cpu_to_le32(sctx->hash[0]);
- dst[1] = cpu_to_le32(sctx->hash[1]);
- dst[2] = cpu_to_le32(sctx->hash[2]);
- dst[3] = cpu_to_le32(sctx->hash[3]);
- return 0;
-}
-
-static struct shash_alg alg = {
- .digestsize = MD5_DIGEST_SIZE,
- .init = ppc_md5_init,
- .update = ppc_md5_update,
- .finup = ppc_md5_finup,
- .descsize = MD5_STATE_SIZE,
- .base = {
- .cra_name = "md5",
- .cra_driver_name= "md5-ppc",
- .cra_priority = 200,
- .cra_flags = CRYPTO_AHASH_ALG_BLOCK_ONLY,
- .cra_blocksize = MD5_HMAC_BLOCK_SIZE,
- .cra_module = THIS_MODULE,
- }
-};
-
-static int __init ppc_md5_mod_init(void)
-{
- return crypto_register_shash(&alg);
-}
-
-static void __exit ppc_md5_mod_fini(void)
-{
- crypto_unregister_shash(&alg);
-}
-
-module_init(ppc_md5_mod_init);
-module_exit(ppc_md5_mod_fini);
-
-MODULE_LICENSE("GPL");
-MODULE_DESCRIPTION("MD5 Secure Hash Algorithm, PPC assembler");
-
-MODULE_ALIAS_CRYPTO("md5");
-MODULE_ALIAS_CRYPTO("md5-ppc");
