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<base href="https://bugs.freedesktop.org/" />
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<body><table border="1" cellspacing="0" cellpadding="8">
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<th>Priority</th>
<td>medium
</td>
</tr>
<tr>
<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - [drm:r100_ring_test] *ERROR* radeon: ring test failed - since linux-3.17_rc1 on RS690/RS740 [Radeon 2100]"
href="https://bugs.freedesktop.org/show_bug.cgi?id=83996">83996</a>
</td>
</tr>
<tr>
<th>Assignee</th>
<td>dri-devel@lists.freedesktop.org
</td>
</tr>
<tr>
<th>Summary</th>
<td>[drm:r100_ring_test] *ERROR* radeon: ring test failed - since linux-3.17_rc1 on RS690/RS740 [Radeon 2100]
</td>
</tr>
<tr>
<th>Severity</th>
<td>normal
</td>
</tr>
<tr>
<th>Classification</th>
<td>Unclassified
</td>
</tr>
<tr>
<th>OS</th>
<td>Linux (All)
</td>
</tr>
<tr>
<th>Reporter</th>
<td>jospezial@gmx.de
</td>
</tr>
<tr>
<th>Hardware</th>
<td>Other
</td>
</tr>
<tr>
<th>Status</th>
<td>NEW
</td>
</tr>
<tr>
<th>Version</th>
<td>DRI CVS
</td>
</tr>
<tr>
<th>Component</th>
<td>DRM/Radeon
</td>
</tr>
<tr>
<th>Product</th>
<td>DRI
</td>
</tr></table>
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<pre>This bug report is a fork of <a class="bz_bug_link
bz_status_RESOLVED bz_closed"
title="RESOLVED FIXED - X fails to start with linus-tip or drm-next"
href="show_bug.cgi?id=82588">https://bugs.freedesktop.org/show_bug.cgi?id=82588</a>
This do I get on a AMD64 Gentoo linux with xf86-video-ati-7.4.0 since
linux-3.17_rc1.
X starts but GPU acceleration is disabled.
[ 6.787592] [drm] Initialized drm 1.1.0 20060810
[ 7.007890] [drm] radeon kernel modesetting enabled.
[ 7.008441] [drm] initializing kernel modesetting (RS740 0x1002:0x796E
0x105B:0x0E13).
[ 7.008456] [drm] register mmio base: 0xFEAF0000
[ 7.008457] [drm] register mmio size: 65536
[ 7.009087] ATOM BIOS: ATI
[ 7.009102] radeon 0000:01:05.0: VRAM: 128M 0x0000000038000000 -
0x000000003FFFFFFF (128M used)
[ 7.009104] radeon 0000:01:05.0: GTT: 512M 0x0000000040000000 -
0x000000005FFFFFFF
[ 7.009117] [drm] Detected VRAM RAM=128M, BAR=128M
[ 7.009118] [drm] RAM width 128bits DDR
[ 7.009204] [TTM] Zone kernel: Available graphics memory: 443784 kiB
[ 7.009206] [TTM] Initializing pool allocator
[ 7.009212] [TTM] Initializing DMA pool allocator
[ 7.009235] [drm] radeon: 128M of VRAM memory ready
[ 7.009236] [drm] radeon: 512M of GTT memory ready.
[ 7.009251] [drm] GART: num cpu pages 131072, num gpu pages 131072
[ 7.025657] [drm] radeon: 1 quad pipes, 1 z pipes initialized.
[ 7.025670] [drm] PCIE GART of 512M enabled (table at 0x0000000032F00000).
[ 7.025726] radeon 0000:01:05.0: WB enabled
[ 7.025730] radeon 0000:01:05.0: fence driver on ring 0 use gpu addr
0x0000000040000000 and cpu addr 0xffff880032ea5000
[ 7.025733] [drm] Supports vblank timestamp caching Rev 2 (21.10.2013).
[ 7.025734] [drm] Driver supports precise vblank timestamp query.
[ 7.025744] [drm] radeon: irq initialized.
[ 7.025753] [drm] Loading RS690/RS740 Microcode
[ 7.071137] [drm] radeon: ring at 0x0000000040001000
[ 7.228868] [drm:r100_ring_test] *ERROR* radeon: ring test failed
(scratch(0x15E4)=0xCAFEDEAD)
[ 7.228875] [drm:r100_cp_init] *ERROR* radeon: cp isn't working (-22).
[ 7.228883] radeon 0000:01:05.0: failed initializing CP (-22).
[ 7.228888] radeon 0000:01:05.0: Disabling GPU acceleration
[ 7.375499] [drm:r100_cp_fini] *ERROR* Wait for CP idle timeout, shutting
down CP.
[ 7.521222] Failed to wait GUI idle while programming pipes. Bad things
might happen.
[ 7.521467] [drm] radeon: cp finalized
With linux-3.16.x it works.
lspci:
01:05.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] RS740
[Radeon 2100]
some messages from Xorg.log:
[ 24.729] (--) RADEON(0): Chipset: "ATI RS740" (ChipID = 0x796e)
[ 24.729] (II) RADEON(0): GPU accel disabled or not working, using shadowfb
for KMS
[ 24.869] (WW) RADEON(0): Direct rendering disabled
[ 24.869] (II) RADEON(0): Acceleration disabled
[ 24.871] (WW) RADEON(0): Option "AccelMethod" is not used
[ 24.879] (II) AIGLX: Screen 0 is not DRI2 capable
[ 24.879] (EE) AIGLX: reverting to software rendering
[ 25.578] (II) AIGLX: Loaded and initialized swrast
[ 25.578] (II) GLX: Initialized DRISWRAST GL provider for screen 0
Result of bisecting between v3.16 and v3.17-rc1:
77497f2735ad6e29c55475e15e9790dbfa2c2ef8 is the first bad commit
commit 77497f2735ad6e29c55475e15e9790dbfa2c2ef8
Author: Michel Dänzer <<a href="mailto:michel.daenzer@amd.com">michel.daenzer@amd.com</a>>
Date: Thu Jul 17 19:01:07 2014 +0900
drm/radeon: Pass GART page flags to radeon_gart_set_page() explicitly
Signed-off-by: Michel Dänzer <<a href="mailto:michel.daenzer@amd.com">michel.daenzer@amd.com</a>>
Reviewed-by: Christian König <<a href="mailto:christian.koenig@amd.com">christian.koenig@amd.com</a>>
Signed-off-by: Alex Deucher <<a href="mailto:alexander.deucher@amd.com">alexander.deucher@amd.com</a>>
:040000 040000 7da27ed892f4ea02ef8e758eda7165ce336d19cc
369d9e0ff185b6e6c9614de87296fc60072f56b9 M drivers
:040000 040000 c3203bef4546e1781ba218fa5232c12cd2a883a2
b655879d0fefad7b591333930fddfd3cc67afa8d M include
Reverting that whole patch on v3.17-rc5 is not as easy because then compile
fails.</pre>
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