re: port-amd64/49833: NetBSD-current (amd64/i386) reboot when start xinit on pc with HD6450

[matthew green <mrg%eterna.com.au@localhost>]

The following reply was made to PR port-amd64/49833; it has been noted by GNATS.

From: matthew green <mrg%eterna.com.au@localhost>
To: port-amd64-maintainer%netbsd.org@localhost, gnats-admin%netbsd.org@localhost,
    netbsd-bugs%netbsd.org@localhost, gnats-bugs%NetBSD.org@localhost, riastradh%netbsd.org@localhost
Cc: 
Subject: re: port-amd64/49833: NetBSD-current (amd64/i386) reboot when start xinit on pc with HD6450
Date: Sun, 19 Apr 2015 10:48:48 +1000

 this seems to fix the problem for me.  i *think* we're not supposed
 to be looking at these values, and the simplest way i can see to
 ensure this is to initialise something - the something we check
 later when the assert is triggered.
 
 with this in place, i'm able to run X and basic GL apps.  bzflag
 dumps core, but that might be bzflag itself.  glxgears without vsync
 enabled runs fairly slowly -- only about 200fps (my radeonhd 5450
 gets about 2000fps), so there might be some problems still.
 
 Taylor?  comments?
 
 
 .mrg.
 
 
 Index: dist/drm/ttm/ttm_bo.c
 ===================================================================
 RCS file: /cvsroot/src/sys/external/bsd/drm2/dist/drm/ttm/ttm_bo.c,v
 retrieving revision 1.9
 diff -p -u -r1.9 ttm_bo.c
 --- dist/drm/ttm/ttm_bo.c	10 Apr 2015 17:28:42 -0000	1.9
 +++ dist/drm/ttm/ttm_bo.c	19 Apr 2015 00:43:39 -0000
 @@ -1018,6 +1018,9 @@ static int ttm_bo_move_buffer(struct ttm
  	spin_unlock(&bdev->fence_lock);
  	if (ret)
  		return ret;
 +#ifdef __NetBSD__
 +	mem.bus.is_iomem = false;
 +#endif
  	mem.num_pages = bo->num_pages;
  	mem.size = mem.num_pages << PAGE_SHIFT;
  	mem.page_alignment = bo->mem.page_alignment;