David E. Box
bee9cdaa2b
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>
2020-09-21 12:16:25 -04:00
Vladimir Serbinenko
1933d37371
Make grub_cpu_is_tsc_supported generally available.
2016-02-12 11:38:51 +01:00
Vladimir Serbinenko
d43a5ee651
tsc: Use alternative delay sources whenever appropriate.
...
PIT isn't available on some of new hardware including Hyper-V. So
use pmtimer for calibration. Moreover pmtimer calibration is faster, so
use it on coreboor where booting time is important.
Based on patch by Michael Chang.
2015-11-27 11:39:55 +01:00
Vladimir Serbinenko
50ebc8f5f3
i386/tsc: Fix unused function warning on xen.
2015-02-22 13:12:44 +01:00
Vladimir Serbinenko
2e62352bc2
* grub-core/kern/i386/tsc.c (calibrate_tsc): Ensure that
...
no division by 0 occurs.
2015-01-21 17:42:14 +01:00
Vladimir Serbinenko
9612ebc00e
Add new ports: i386-xen and x86_64-xen. This allows running GRUB in
...
XEN PV environment and load kernels.
2013-11-09 21:29:11 +01:00
Vladimir Serbinenko
c81acb7ff3
Consolidate cpuid code.
2013-10-27 00:02:01 +02:00
Vladimir Serbinenko
c1bee64676
Move cpuid code to cpuid.h and TSC code to tsc.c.
2013-10-26 23:39:10 +02:00
Vladimir 'phcoder' Serbinenko
5341c0fbfc
Avoid costly 64-bit division in grub_get_time_ms on most platforms.
2013-03-10 17:45:38 +01:00
Vladimir 'phcoder' Serbinenko
7da036bbcb
Remove non-functional EFI grub_get_rtc. Put a better fatal message
...
than current grub_get_rtc() not implemented when booted with
coreboot without TSC.
* grub-core/Makefile.am: Exclude efi/time.h from kernel headers.
Add machine/time.h to kernel headers on loongson.
* grub-core/Makefile.core.def (kernel): Remove
kern/generic/rtc_get_time_ms.c on qemu-multiboot-coreboot.
* grub-core/kern/efi/efi.c (grub_rtc_get_time_ms): Removed.
(grub_get_rtc): Likewise.
* grub-core/kern/generic/rtc_get_time_ms.c: Include grub/machine/time.h.
* grub-core/kern/i386/coreboot/init.c (grub_get_rtc): Removed.
* grub-core/kern/i386/pc/init.c: Include grub/machine/init.h.
* grub-core/kern/i386/tsc.c (grub_tsc_init)
[!GRUB_MACHINE_PCBIOS && !GRUB_MACHINE_IEEE1275]: Call grub_fatal
rather than installing known non-working time source.
* grub-core/kern/ieee1275/init.c (grub_get_rtc): Removed.
* grub-core/kern/mips/loongson/init.c: Include grub/machine/time.h.
* include/grub/time.h: Don't include machine/time.h.
* include/grub/efi/time.h: Removed.
* include/grub/i386/efi/time.h: Likewise.
* include/grub/i386/ieee1275/time.h: Likewise.
* include/grub/powerpc/ieee1275/time.h: Likewise.
* include/grub/sparc64/ieee1275/time.h: Likewise.
* include/grub/x86_64/efi/time.h: Likewise.
2012-06-11 20:44:38 +02:00
BVK Chaitanya
8c41176882
automake commit without merge history
2010-05-06 11:34:04 +05:30
