blob: 032a011dbb2491f84cdc0a5ef76639f07aa2f476 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
|
/* SPDX-License-Identifier: GPL-2.0-only */
/*
* Store the initial timestamp for booting in mmx registers. This works
* because the bootblock isn't being compiled with MMX support so mm1 and
* mm2 will be preserved into romstage.
*/
.code32
.global stash_timestamp
stash_timestamp:
/* Save the BIST value */
movl %eax, %ebx
finit
rdtsc
movd %ebx, %mm0
movd %eax, %mm1
movd %edx, %mm2
/* Restore the BIST value to %eax */
movl %ebx, %eax
|
