A while back we had a workload which severely suffered from excessive clflushing. I sent out a patch series which solved this generically in DRM core, but that had the unfortunate side effect of possibly regressing non-intel platforms. I've re-spun the series to only take this shortcut when on an Intel platform. This series is untested by me since we've now worked around the problem in a different way within mesa. Jesse asked me to send this out, though I don't have time to see if it's still useful (until my mesa patches are merged, it would be useful, but afterwards, I do not know). I also didn't check that I rebased things properly. Do what you want with them... Ben Widawsky (6): drm/i915: Remove the useless flush_chipset drm/i915: Pass eb_vmas to execbuffer implementations drm/i915: Opportunistically reduce flushing at execbuf drm/i915: Add debugfs knobs for wbinvd threshold drm/i915: Extract checking the necessity of flush drm/i915: obey wbinvd threshold in more places drivers/gpu/drm/i915/i915_debugfs.c | 34 +++++++++++ drivers/gpu/drm/i915/i915_drv.h | 25 +++++++- drivers/gpu/drm/i915/i915_gem.c | 96 ++++++++++++++++++++---------- drivers/gpu/drm/i915/i915_gem_execbuffer.c | 46 +++++++------- drivers/gpu/drm/i915/i915_gem_gtt.c | 13 +++- drivers/gpu/drm/i915/intel_lrc.c | 21 ++++--- drivers/gpu/drm/i915/intel_lrc.h | 3 +- 7 files changed, 172 insertions(+), 66 deletions(-) -- 2.3.0 _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx http://lists.freedesktop.org/mailman/listinfo/intel-gfx
