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SubjectRe: Linux 2.2.18pre13, drm without agp
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Alan Cox <alan@lxorguk.ukuu.org.uk> writes:

> 2.2.18pre2 (versus 2.2.17pre20)
>
> o AGP driver backport (XFree86, Precision
> DRM driver backport Insight, XiG, HJ Lu,
> VA Linux,
> and others)

I have a Voodoo3 2000 PCI card, but when I activate DRM without AGP,

# CONFIG_AGP is not set
CONFIG_DRM=y
CONFIG_DRM_TDFX=y

the linker complains about an undefined reference to agp_enable. The
following patch works for me, but I don't know if it is the correct
solution. (Even if it is, other drm drivers probably need similar
patches.)

This problem does not exist in 2.4.0-test8.

Here is the patch:

--- linux-2.2.18pre13/drivers/char/drm/tdfx_drv.c~ Sun Oct 1 10:46:36 2000
+++ linux-2.2.18pre13/drivers/char/drm/tdfx_drv.c Sun Oct 1 11:38:25 2000
@@ -34,12 +34,14 @@
#include "drmP.h"
#include "tdfx_drv.h"

+#if defined(CONFIG_AGP) || defined(CONFIG_AGP_MODULE)
#include <linux/agp_backend.h>

static __attribute__((unused)) void unused(void)
{
agp_enable(0);
}
+#endif

#define TDFX_NAME "tdfx"
#define TDFX_DESC "3dfx Banshee/Voodoo3+"
--
Peter Österlund Email: peter.osterlund@mailbox.swipnet.se
Sköndalsvägen 35 f90-pos@nada.kth.se
S-128 66 Sköndal Home page: http://home1.swipnet.se/~w-15919
Sweden Phone: +46 8 942647

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