Hi,
As alluded to earlier [1], I'm wondering how the various ia64 default
kernel configuration files in arch/ia64/configs are maintained?
For example, the zx1_defconfig file is pretty outdated, leading to
e.g. broken 3D hardware acceleration on zx1-based systems for many
years [1], just because the timer interrupt frequency hasn't been
overidden there appropriately when the selectable timer interrupt
frequency was introduced in May 2005 [2]. zx1-based systems thus
inherit a default 250 HZ timer frequency from other generic (read,
non-ia64) default kernel configuration files that is unfortunately
used by the various Linux distributions to provide prebuilt kernel
binary packages.
Similarly, the zx1_defconfig file still adds to the kernel the CMD649
chipset using the deprecated ATA/ATAPI/MFM/RLL API (CONFIG_IDE=y,
CONFIG_BLK_DEV_IDECD=y, CONFIG_BLK_DEV_CMD64X=y) whereas the SATA/PATA
API is the way to go nowadays (CONFIG_ATA_SFF=y, CONFIG_ATA_BMDMA=y,
CONFIG_PATA_CMD64X=y).
Émeric
[1] http://marc.info/?l=linux-ia64&m=140077543819871&w=2
[2] http://marc.info/?l=linux-ia64&m=111643909323936&w=2
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