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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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426960bed3
Tvrtko was looking through the execbuffer-ioctl and noticed that the uABI was tightly coupled to our internal engine identifiers. Close inspection also revealed that we leak those internal engine identifiers through the busy-ioctl, and those internal identifiers already do not match the user identifiers. Fortuitiously, there is only one user of the set of busy rings from the busy-ioctl, and they only wish to choose between the RENDER and the BLT engines. Let's fix the userspace ABI while we still can. v2: Update the uAPI documentation to explain the identifiers. Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Testcase: igt/gem_busy Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com> Cc: Daniel Vetter <daniel.vetter@ffwll.ch> Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com> Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: http://patchwork.freedesktop.org/patch/msgid/1452876706-21620-1-git-send-email-chris@chris-wilson.co.uk |
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| linux | ||
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