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| author | Kyösti Mälkki <kyosti.malkki@gmail.com> | 2018-12-23 07:22:59 +0200 |
|---|---|---|
| committer | Kyösti Mälkki <kyosti.malkki@gmail.com> | 2018-12-30 12:30:55 +0000 |
| commit | 1c105903078f85dd1be805c737b4e4da6dea0618 (patch) | |
| tree | e5ea20e0c52aafe2850c6df8c310378cc2bc5e47 /src/soc/intel/baytrail/bootblock | |
| parent | 3ba79b319ef5d47b0d16482a254de7c5c740e415 (diff) | |
| download | coreboot-1c105903078f85dd1be805c737b4e4da6dea0618.tar.xz | |
arch/x86: Use a common timestamp.inc with romcc bootblocks
The same file was replicated three times for certain
soc/intel bootblocks, yet there are no indications or need to do
chipset-specific initialisation.
There is no harm in storing the TSC values in MMX registers
even when they would not be used.
Change-Id: Iec6fa0889f5887effca1d99ef830d383fb733648
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/c/30393
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
Diffstat (limited to 'src/soc/intel/baytrail/bootblock')
| -rw-r--r-- | src/soc/intel/baytrail/bootblock/timestamp.inc | 33 |
1 files changed, 0 insertions, 33 deletions
diff --git a/src/soc/intel/baytrail/bootblock/timestamp.inc b/src/soc/intel/baytrail/bootblock/timestamp.inc deleted file mode 100644 index 3115c22c67..0000000000 --- a/src/soc/intel/baytrail/bootblock/timestamp.inc +++ /dev/null @@ -1,33 +0,0 @@ -/* - * This file is part of the coreboot project. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; version 2 of the License. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - */ - -/* - * Store the initial timestamp for booting in mmx registers. This works - * because the bootblock isn't being compiled with MMX support so mm0 and - * mm1 will be preserved into romstage. - */ - .code32 - -.global stash_timestamp -stash_timestamp: - - /* Save the BIST value */ - movl %eax, %ebp - - finit - rdtsc - movd %eax, %mm0 - movd %edx, %mm1 - - /* Restore the BIST value to %eax */ - movl %ebp, %eax |