<html> <head> <base href="https://bugs.freedesktop.org/"> </head> <body> <div> <a class="bz_bug_link bz_status_NEW " title="NEW - HyperZ is broken for r300 (bad z for some micro and macrotiles?)" href="https://bugs.freedesktop.org/show_bug.cgi?id=110897#c42">Comment # 42</a> on <a class="bz_bug_link bz_status_NEW " title="NEW - HyperZ is broken for r300 (bad z for some micro and macrotiles?)" href="https://bugs.freedesktop.org/show_bug.cgi?id=110897">bug 110897</a> from <a class="email" href="mailto:u9vata@gmail.com" title="Richard Thier <u9vata@gmail.com>"> Richard Thier</a> <pre>(In reply to Marek Olšák from <a href="show_bug.cgi?id=110897#c40">comment #40</a>) > I'm afraid nobody remembers anymore how HyperZ works on r300. I can answer > basic questions if you have any. Hi! Currently I have added this to radeon_drm_winsys.c: 385 if (ws->gen == DRV_R300) { 386 if (!radeon_get_drm_value(ws->fd, RADEON_INFO_NUM_GB_PIPES, 387 "GB pipe count", 388 &ws->info.r300_num_gb_pipes)) 389 return false; 390 + // FIXME: only works for my own setup (prenex): 391 + ws->info.r300_num_gb_pipes=1; Now I have no problems so far. It can be that HyperZ code is just good as-is, but for some resoun the radeon_get_drm_value returns a bad gb_pipes number. Currently testing with this a bit more throughly before moving further, but everything seems to work so far, just this is not a proper fix. Some questions I can have: 1.) Is there any way to ensure how many pipes a card has? One pipeline seems to be really few for a GPU, but this is a mobile integrated card. 2.) Can the other indicated pipes be existing on my card but turned off for some reason? 3.) radeon_get_drm_value - is this in the kernel source tree? I will have a look later on the code behind it.</pre> </div> <hr> You are receiving this mail because: <ul> <li>You are the assignee for the bug.</li> </ul> </body> </html>