[Bug 34778] New: [r600g, wine] FEAR / depth-stencil rendering triggers SW fallback

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=34778

           Summary: [r600g, wine] FEAR / depth-stencil rendering triggers
                    SW fallback
           Product: DRI
           Version: DRI CVS
          Platform: x86-64 (AMD64)
               URL: http://www.gamershell.com/download_10167.shtml
        OS/Version: Linux (All)
            Status: NEW
          Severity: normal
          Priority: medium
         Component: DRM/Radeon
        AssignedTo: dri-devel at lists.freedesktop.org
        ReportedBy: liquid.acid at gmx.net


System:
ATI Technologies Inc Radeon HD 4770 [RV740]

drm-radeon-testing kernel (git tip)
libdrm, mesa and xf86-video-intel git master
xorg-server-1.9.4

mesa git master = 99b9019716d0a5cfc7438677d2e11090d676c054

Hi there,

this is sort of copy&paste from bug #34674. The problem (fallback to software
rendering) described there also happens on r600g, and probably (judging from
the state tracker code) on all gallium drivers.

Anyway, from profiling I found out that pipe_put_tile_z and pipe_get_tile_z
consume like 90% of the CPU time. These two get called by
fallback_copy_texsubimage, which is called from st_copy_texsubimage.

Greets,
Tobias

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