cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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clear_page.S (490B)

      1/* SPDX-License-Identifier: GPL-2.0 */
      2/*
      3 * arch/alpha/lib/clear_page.S
      4 *
      5 * Zero an entire page.
      6 */
      7#include <asm/export.h>
      8	.text
      9	.align 4
     10	.global clear_page
     11	.ent clear_page
     12clear_page:
     13	.prologue 0
     14
     15	lda	$0,128
     16	nop
     17	unop
     18	nop
     19
     201:	stq	$31,0($16)
     21	stq	$31,8($16)
     22	stq	$31,16($16)
     23	stq	$31,24($16)
     24
     25	stq	$31,32($16)
     26	stq	$31,40($16)
     27	stq	$31,48($16)
     28	subq	$0,1,$0
     29
     30	stq	$31,56($16)
     31	addq	$16,64,$16
     32	unop
     33	bne	$0,1b
     34
     35	ret
     36	nop
     37	unop
     38	nop
     39
     40	.end clear_page
     41	EXPORT_SYMBOL(clear_page)