diff options
Diffstat (limited to 'arch/x86/crypto/camellia_aesni_avx2_glue.c')
| -rw-r--r-- | arch/x86/crypto/camellia_aesni_avx2_glue.c | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/arch/x86/crypto/camellia_aesni_avx2_glue.c b/arch/x86/crypto/camellia_aesni_avx2_glue.c index 60907c139c4e..0902db7d326a 100644 --- a/arch/x86/crypto/camellia_aesni_avx2_glue.c +++ b/arch/x86/crypto/camellia_aesni_avx2_glue.c @@ -206,6 +206,20 @@ struct crypt_priv { bool fpu_enabled; }; +#ifdef CONFIG_PREEMPT_RT_FULL +static void camellia_fpu_end_rt(struct crypt_priv *ctx) +{ + bool fpu_enabled = ctx->fpu_enabled; + + if (!fpu_enabled) + return; + camellia_fpu_end(fpu_enabled); + ctx->fpu_enabled = false; +} +#else +static void camellia_fpu_end_rt(struct crypt_priv *ctx) { } +#endif + static void encrypt_callback(void *priv, u8 *srcdst, unsigned int nbytes) { const unsigned int bsize = CAMELLIA_BLOCK_SIZE; @@ -221,16 +235,19 @@ static void encrypt_callback(void *priv, u8 *srcdst, unsigned int nbytes) } if (nbytes >= CAMELLIA_AESNI_PARALLEL_BLOCKS * bsize) { + kernel_fpu_resched(); camellia_ecb_enc_16way(ctx->ctx, srcdst, srcdst); srcdst += bsize * CAMELLIA_AESNI_PARALLEL_BLOCKS; nbytes -= bsize * CAMELLIA_AESNI_PARALLEL_BLOCKS; } while (nbytes >= CAMELLIA_PARALLEL_BLOCKS * bsize) { + kernel_fpu_resched(); camellia_enc_blk_2way(ctx->ctx, srcdst, srcdst); srcdst += bsize * CAMELLIA_PARALLEL_BLOCKS; nbytes -= bsize * CAMELLIA_PARALLEL_BLOCKS; } + camellia_fpu_end_rt(ctx); for (i = 0; i < nbytes / bsize; i++, srcdst += bsize) camellia_enc_blk(ctx->ctx, srcdst, srcdst); @@ -251,16 +268,19 @@ static void decrypt_callback(void *priv, u8 *srcdst, unsigned int nbytes) } if (nbytes >= CAMELLIA_AESNI_PARALLEL_BLOCKS * bsize) { + kernel_fpu_resched(); camellia_ecb_dec_16way(ctx->ctx, srcdst, srcdst); srcdst += bsize * CAMELLIA_AESNI_PARALLEL_BLOCKS; nbytes -= bsize * CAMELLIA_AESNI_PARALLEL_BLOCKS; } while (nbytes >= CAMELLIA_PARALLEL_BLOCKS * bsize) { + kernel_fpu_resched(); camellia_dec_blk_2way(ctx->ctx, srcdst, srcdst); srcdst += bsize * CAMELLIA_PARALLEL_BLOCKS; nbytes -= bsize * CAMELLIA_PARALLEL_BLOCKS; } + camellia_fpu_end_rt(ctx); for (i = 0; i < nbytes / bsize; i++, srcdst += bsize) camellia_dec_blk(ctx->ctx, srcdst, srcdst); |