On Mon, 16 Apr 2007, Krzysztof Halasa wrote:
Mikko Tiihonen <[email protected]> writes:
Enables HPET for NVidia motherboards with broken BIOS. The patch reads
the HPET address from the pci config space. The patch should also work
if ACPI is disabled.
The HPET search is done in early-quirks because even
DECLARE_PCI_FIXUP_EARLY was too late. If the new quirk causes problems
it can be disabled with the nohpet boot option.
The patch assumes that the BIOS has done the basic setup of HPET, but
has not published the result in ACPI tables. This is at least true for
some Asus and Gigabyte motherboards.
I think the code should only be enabled by its CONFIG_*.
Currently the all the code is protected by CONFIG_HPET.
Are you proposing to use for example CONFIG_HPET_NVIDIA instead?
I think that the code should be safe even without it's own config option.
It won't override values from ACPI tables and can still be disabled with
nohpet boot option. Also all the code and data are __init.
-Mikko
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