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Change default tsc calibration method to pmtimer on EFI systems (FS#56521)

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This commit is contained in:
Christian Hesse
2017-12-01 07:58:15 +00:00
parent 5fa39de08d
commit 4431d5dc76
2 changed files with 38 additions and 1 deletions
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31
0006-tsc-Change-default-tsc-calibration-method-to-pmtimer-on-EFI-systems.patch Normal file
View File

@@ -0,0 +1,31 @@
From 446794de8da4329ea532cbee4ca877bcafd0e534 Mon Sep 17 00:00:00 2001
From: "David E. Box" <david.e.box@linux.intel.com>
Date: Fri, 15 Sep 2017 15:37:05 -0700
Subject: tsc: Change default tsc calibration method to pmtimer on EFI systems
On efi systems, make pmtimer based tsc calibration the default over the
pit. This prevents Grub from hanging on Intel SoC systems that power gate
the pit.
Signed-off-by: David E. Box <david.e.box@linux.intel.com>
Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
---
grub-core/kern/i386/tsc.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/grub-core/kern/i386/tsc.c b/grub-core/kern/i386/tsc.c
index 2e85289d8..f266eb131 100644
--- a/grub-core/kern/i386/tsc.c
+++ b/grub-core/kern/i386/tsc.c
@@ -68,7 +68,7 @@ grub_tsc_init (void)
#ifdef GRUB_MACHINE_XEN
(void) (grub_tsc_calibrate_from_xen () || calibrate_tsc_hardcode());
#elif defined (GRUB_MACHINE_EFI)
- (void) (grub_tsc_calibrate_from_pit () || grub_tsc_calibrate_from_pmtimer () || grub_tsc_calibrate_from_efi() || calibrate_tsc_hardcode());
+ (void) (grub_tsc_calibrate_from_pmtimer () || grub_tsc_calibrate_from_pit () || grub_tsc_calibrate_from_efi() || calibrate_tsc_hardcode());
#elif defined (GRUB_MACHINE_COREBOOT)
(void) (grub_tsc_calibrate_from_pmtimer () || grub_tsc_calibrate_from_pit () || calibrate_tsc_hardcode());
#else
--
cgit v1.1-26-g67d0

8
PKGBUILD
View File

@@ -22,7 +22,7 @@ _UNIFONT_VER="10.0.06"
pkgname="grub"
pkgdesc="GNU GRand Unified Bootloader (2)"
pkgver=2.02
pkgrel=3
pkgrel=4
epoch=2
url="https://www.gnu.org/software/grub/"
arch=('x86_64')
@@ -64,6 +64,7 @@ source=("https://ftp.gnu.org/gnu/${pkgname}/${pkgname}-${pkgver}.tar.xz"{,.sig}
'0003-10_linux-detect-archlinux-initramfs.patch'
'0004-add-GRUB_COLOR_variables.patch'
'0005-Allow_GRUB_to_mount_ext234_filesystems_that_have_the_encryption_feature.patch'
'0006-tsc-Change-default-tsc-calibration-method-to-pmtimer-on-EFI-systems.patch'
'grub.default'
'grub.cfg')
@@ -76,6 +77,7 @@ sha256sums=('810b3798d316394f94096ec2797909dbf23c858e48f7b3830826b8daa06b7b0f'
'b41e4438319136b5e74e0abdfcb64ae115393e4e15207490272c425f54026dd3'
'a5198267ceb04dceb6d2ea7800281a42b3f91fd02da55d2cc9ea20d47273ca29'
'535422c510a050d41efe7720dbe54de29e04bdb8f86fd5aea5feb0b24f7abe46'
'c38f2b2caae33008b35a37d8293d8bf13bf6fd779a4504925da1837fd007aeb5'
'74e5dd2090a153c10a7b9599b73bb09e70fddc6a019dd41641b0f10b9d773d82'
'c5e4f3836130c6885e9273c21f057263eba53f4b7c0e2f111f6e5f2e487a47ad')
@@ -99,6 +101,10 @@ prepare() {
patch -Np1 -i "${srcdir}/0005-Allow_GRUB_to_mount_ext234_filesystems_that_have_the_encryption_feature.patch"
echo
msg "Patch to change default tsc calibration method to pmtimer on EFI systems"
patch -Np1 -i "${srcdir}/0006-tsc-Change-default-tsc-calibration-method-to-pmtimer-on-EFI-systems.patch"
echo
msg "Fix DejaVuSans.ttf location so that grub-mkfont can create *.pf2 files for starfield theme"
sed 's|/usr/share/fonts/dejavu|/usr/share/fonts/dejavu /usr/share/fonts/TTF|g' -i "configure.ac"