forked from pool/libgcrypt
Pedro Monreal Gonzalez
30ec5cbd47
- POWER: performance enhancements for cryptography [jsc#PED-5088]
* Optimize Chacha20 and Poly1305 for PPC P10 LE: [T6006]
- Chacha20/poly1305: Optimized chacha20/poly1305 for
P10 operation [rC88fe7ac33eb4]
- ppc: enable P10 assembly with ENABLE_FORCE_SOFT_HWFEATURES
on arch-3.00 [rC2c5e5ab6843d]
* Add patches:
- libgcrypt-Chacha20-poly1305-Optimized-chacha20-poly1305.patch
- libgcrypt-ppc-enable-P10-assembly-with-ENABLE_FORCE_SOF.patch
OBS-URL: https://build.opensuse.org/request/show/1116818
OBS-URL: https://build.opensuse.org/package/show/devel:libraries:c_c++/libgcrypt?expand=0&rev=170
77 lines
2.9 KiB
Diff
77 lines
2.9 KiB
Diff
commit 2c5e5ab6843d747c4b877d2c6f47226f61e9ff14
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Author: Jussi Kivilinna <jussi.kivilinna@iki.fi>
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Date: Sun Jun 12 21:51:34 2022 +0300
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ppc enable P10 assembly with ENABLE_FORCE_SOFT_HWFEATURES on arch 3.00
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* cipher/chacha20.c (chacha20_do_setkey) [USE_PPC_VEC]: Enable
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P10 assembly for HWF_PPC_ARCH_3_00 if ENABLE_FORCE_SOFT_HWFEATURES is
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defined.
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* cipher/poly1305.c (poly1305_init) [POLY1305_USE_PPC_VEC]: Likewise.
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* cipher/rijndael.c (do_setkey) [USE_PPC_CRYPTO_WITH_PPC9LE]: Likewise.
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---
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This change allows testing P10 implementations with P9 and with QEMU-PPC.
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GnuPG-bug-id: 6006
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Signed-off-by: Jussi Kivilinna <jussi.kivilinna@iki.fi>
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Index: libgcrypt-1.10.2/cipher/chacha20.c
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===================================================================
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--- libgcrypt-1.10.2.orig/cipher/chacha20.c
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+++ libgcrypt-1.10.2/cipher/chacha20.c
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@@ -484,6 +484,11 @@ chacha20_do_setkey (CHACHA20_context_t *
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ctx->use_ppc = (features & HWF_PPC_ARCH_2_07) != 0;
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# ifndef WORDS_BIGENDIAN
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ctx->use_p10 = (features & HWF_PPC_ARCH_3_10) != 0;
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+# ifdef ENABLE_FORCE_SOFT_HWFEATURES
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+ /* HWF_PPC_ARCH_3_10 above is used as soft HW-feature indicator for P10.
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+ * Actual implementation works with HWF_PPC_ARCH_3_00 also. */
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+ ctx->use_p10 |= (features & HWF_PPC_ARCH_3_00) != 0;
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+# endif
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# endif
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#endif
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#ifdef USE_S390X_VX
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Index: libgcrypt-1.10.2/cipher/poly1305.c
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===================================================================
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--- libgcrypt-1.10.2.orig/cipher/poly1305.c
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+++ libgcrypt-1.10.2/cipher/poly1305.c
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@@ -90,11 +90,19 @@ static void poly1305_init (poly1305_cont
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const byte key[POLY1305_KEYLEN])
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{
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POLY1305_STATE *st = &ctx->state;
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+ unsigned int features = _gcry_get_hw_features ();
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#ifdef POLY1305_USE_PPC_VEC
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- ctx->use_p10 = (_gcry_get_hw_features () & HWF_PPC_ARCH_3_10) != 0;
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+ ctx->use_p10 = (features & HWF_PPC_ARCH_3_10) != 0;
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+# ifdef ENABLE_FORCE_SOFT_HWFEATURES
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+ /* HWF_PPC_ARCH_3_10 above is used as soft HW-feature indicator for P10.
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+ * Actual implementation works with HWF_PPC_ARCH_3_00 also. */
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+ ctx->use_p10 |= (features & HWF_PPC_ARCH_3_00) != 0;
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+# endif
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#endif
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+ (void)features;
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+
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ctx->leftover = 0;
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st->h[0] = 0;
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Index: libgcrypt-1.10.2/cipher/rijndael.c
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===================================================================
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--- libgcrypt-1.10.2.orig/cipher/rijndael.c
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+++ libgcrypt-1.10.2/cipher/rijndael.c
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@@ -605,6 +605,12 @@ do_setkey (RIJNDAEL_context *ctx, const
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bulk_ops->xts_crypt = _gcry_aes_ppc9le_xts_crypt;
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if (hwfeatures & HWF_PPC_ARCH_3_10) /* for P10 */
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bulk_ops->gcm_crypt = _gcry_aes_p10le_gcm_crypt;
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+# ifdef ENABLE_FORCE_SOFT_HWFEATURES
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+ /* HWF_PPC_ARCH_3_10 above is used as soft HW-feature indicator for P10.
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+ * Actual implementation works with HWF_PPC_ARCH_3_00 also. */
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+ if (hwfeatures & HWF_PPC_ARCH_3_00)
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+ bulk_ops->gcm_crypt = _gcry_aes_p10le_gcm_crypt;
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+# endif
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}
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#endif
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#ifdef USE_PPC_CRYPTO
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