Bug 105747 - TOPAZ: ring buffers not getting initialized with the amd-staging-drm-next branch
Summary: TOPAZ: ring buffers not getting initialized with the amd-staging-drm-next branch
Status: VERIFIED NOTABUG
Alias: None
Product: DRI
Classification: Unclassified
Component: DRM/AMDgpu (show other bugs)
Version: DRI git
Hardware: x86-64 (AMD64) Linux (All)
: medium normal
Assignee: Default DRI bug account
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Reported: 2018-03-26 11:32 UTC by Nayan Deshmukh
Modified: 2018-03-27 12:56 UTC (History)
2 users (show)

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i915 platform:
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Attachments
dmesg for kernel v4.15 (9.60 KB, text/plain)
2018-03-26 11:32 UTC, Nayan Deshmukh
no flags Details
dmesg for amd-staging-drm-next (2.89 KB, text/plain)
2018-03-26 11:35 UTC, Nayan Deshmukh
no flags Details

Description Nayan Deshmukh 2018-03-26 11:32:29 UTC
Created attachment 138355 [details]
dmesg for kernel v4.15

Everything was working fine with v4.15. But the ring buffers don't seem to be initialized with amd-staging-drm-next branch from Alex's tree. I am attaching the output of "dmesg | grep 'amd\|drm'" for both cases. the dmesg_v415 is kernel v4.15.
Comment 1 Nayan Deshmukh 2018-03-26 11:35:11 UTC
Created attachment 138356 [details]
dmesg for amd-staging-drm-next
Comment 2 Alex Deucher 2018-03-26 15:53:18 UTC
Is there an actual bug you are seeing?  We no longer print the ring and IB test info in the log unless you enable verbose logging to make the driver less chatty.
Comment 3 Nayan Deshmukh 2018-03-26 16:50:18 UTC
Oh..I am seeing any bug as such, I thought the ring buffers are getting initialized. How can I get the verbose output to confirm that everything is working fine?
Comment 4 Alex Deucher 2018-03-26 17:02:40 UTC
The driver will print an error if any of the ring or IB tests fail.  It just doesn't print anything if they succeed. You can adjust the debug level by adjusting the debug module parameter for the drm.ko module.
Comment 5 Nayan Deshmukh 2018-03-27 12:56:19 UTC
It is working alright. Sorry for the unnecessary noise.


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