Take BoringSSL '90e3b6e': Add prefetch to aesni_ctr32_ghash_6x.

briansmith · Sep 28, 2023 · a6ff12b · a6ff12b
2 parents dc3bdd8 + 90e3b6e
commit a6ff12b
Showing 1 changed file with 3 additions and 0 deletions.
diff --git a/crypto/fipsmodule/modes/asm/aesni-gcm-x86_64.pl b/crypto/fipsmodule/modes/asm/aesni-gcm-x86_64.pl
@@ -375,6 +375,9 @@
 	 vpaddb		$T2,$T1,$Ii
 	mov		%r13,0x70+8(%rsp)
 	lea		0x60($inp),$inp
+	# These two prefetches were added in BoringSSL. See change that added them.
+	 prefetcht0	512($inp)		# We use 96-byte block so prefetch 2 lines (128 bytes)
+	 prefetcht0	576($inp)
 	  vaesenclast	$Z1,$inout2,$inout2
 	 vpaddb		$T2,$Ii,$Z1
 	mov		%r12,0x78+8(%rsp)