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<b><a class="bz_bug_link
bz_status_NEW "
title="NEW - DRM / KMS bootup error on VX900 platform"
href="https://bugs.freedesktop.org/show_bug.cgi?id=94473#c22">Comment # 22</a>
on <a class="bz_bug_link
bz_status_NEW "
title="NEW - DRM / KMS bootup error on VX900 platform"
href="https://bugs.freedesktop.org/show_bug.cgi?id=94473">bug 94473</a>
from <span class="vcard"><a class="email" href="mailto:huangran@iscas.ac.cn" title="HuangRan <huangran@iscas.ac.cn>"> <span class="fn">HuangRan</span></a>
</span></b>
<pre>With further kernel debugging, we found that in via_driver_load() function, it
has the code as below:
#if __OS_HAS_AGP
if ((dev_priv->engine_type > VIA_ENG_H2) ||
(dev->agp && drm_pci_device_is_agp(dev))) {
ret = via_detect_agp(dev);
if (!ret)
via_agp_engine_init(dev_priv);
else
DRM_ERROR("Failed to allocate AGP\n");
}
#endif
Actually dev->agp is NULL for VX900. But because dev_priv->engine_type value is
greater than VIA_ENG_H2, via_detect_agp() is called.
I am not sure what does engine_type mean? Can anybody give some comments? And
why is it related to AGP detect?
Thanks,
Frank</pre>
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