[Bug 32325] New: [radeon] DRM version check only looks at minor number.

bugzilla-daemon at freedesktop.org bugzilla-daemon at freedesktop.org
Sat Dec 11 14:33:16 PST 2010


           Summary: [radeon] DRM version check only looks at minor number.
           Product: Mesa
           Version: git
          Platform: x86 (IA32)
        OS/Version: Linux (All)
            Status: NEW
          Severity: normal
          Priority: medium
         Component: Drivers/DRI/Radeon
        AssignedTo: dri-devel at lists.freedesktop.org
        ReportedBy: rankincj at googlemail.com

Created an attachment (id=41020)
 View: https://bugs.freedesktop.org/attachment.cgi?id=41020
 Review: https://bugs.freedesktop.org/review?bug=32325&attachment=41020

[PATCH] Enable HyperZ and microtiling for R100 if DRM >= v2.x

I have noticed that Mesa 7.9 prints the following message with a recent 2.6.3x

"DRM version 1.6 too old to support HyperZ, disabling."

The reason for this is that the DRM in the 2.6.36 kernel is v2.6:

[drm] Initialized radeon 2.6.0 20080528 for 0000:01:00.0 on minor 0

and Mesa only checks the minor version number. (Assuming that the major version
number is always 1.)

I have attached a patch that will also enable both HyperZ and texture
microtiling(?) on R100 if DRM >= v2.x.

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