Take BoringSSL '5fcd47d': Add prefetch to aes_hw_ctr32_encrypt_blocks.

briansmith · Sep 29, 2023 · e17b48d · e17b48d
2 parents ece6692 + 5fcd47d
commit e17b48d
Showing 1 changed file with 2 additions and 0 deletions.
diff --git a/crypto/fipsmodule/aes/asm/aesni-x86_64.pl b/crypto/fipsmodule/aes/asm/aesni-x86_64.pl
@@ -925,6 +925,8 @@ sub aesni_generate8 {
 	pxor		$rndkey0,$in3
 	movdqu		0x50($inp),$in5
 	pxor		$rndkey0,$in4
+	prefetcht0	0x1c0($inp)	# We process 128 bytes (8*16), so to prefetch 1 iteration
+	prefetcht0	0x200($inp)	# We need to prefetch 2 64 byte lines
 	pxor		$rndkey0,$in5
 	aesenc		$rndkey1,$inout0
 	aesenc		$rndkey1,$inout1