Hi Andi & Fei, We verified your change by UMD change: 1. implement the uAPI by https://github.com/intel/media-driver/commit/92c00a857433ebb34ec575e9834f473c6fcb6341 2. old kernel may not support new uAPI, so UMD try the interface firstly, if it failed, will fallback to older interfaces https://github.com/intel/media-driver/commit/fd375cf2c5e1f6bf6b43258ff797b3134aadc9fd 3. removed some check for CPU cacheable and PAT conflict https://github.com/intel/media-driver/commit/08dd244b22484770a33464c2c8ae85430e548000 after that, UMD works with your patches serious on MTL. Acked-by: Carl Zhang <carl.zhang@xxxxxxxxx> Tested-by: Lihao Gu <lihao.gu@xxxxxxxxx> Thanks Carl > -----Original Message----- > From: Andi Shyti <andi.shyti@xxxxxxxxxxxxxxx> > Sent: Wednesday, May 31, 2023 6:49 PM > To: Yang, Fei <fei.yang@xxxxxxxxx>; Zhang, Carl <carl.zhang@xxxxxxxxx> > Cc: intel-gfx@xxxxxxxxxxxxxxxxxxxxx; dri-devel@xxxxxxxxxxxxxxxxxxxxx; Vivi, > Rodrigo <rodrigo.vivi@xxxxxxxxx>; andi.shyti@xxxxxxxxxxxxxxx; Chris Wilson > <chris.p.wilson@xxxxxxxxxxxxxxx>; Roper, Matthew D > <matthew.d.roper@xxxxxxxxx>; Justen, Jordan L <jordan.l.justen@xxxxxxxxx> > Subject: Re: [PATCH v12 1/1] drm/i915: Allow user to set cache at BO creation > > Hi Carl, > > On Wed, May 24, 2023 at 01:02:55PM -0700, fei.yang@xxxxxxxxx wrote: > > From: Fei Yang <fei.yang@xxxxxxxxx> > > > > To comply with the design that buffer objects shall have immutable > > cache setting through out their life cycle, {set, get}_caching ioctl's > > are no longer supported from MTL onward. With that change caching > > policy can only be set at object creation time. The current code > > applies a default (platform dependent) cache setting for all objects. > > However this is not optimal for performance tuning. The patch extends > > the existing gem_create uAPI to let user set PAT index for the object > > at creation time. > > The new extension is platform independent, so UMD's can switch to > > using this extension for older platforms as well, while {set, > > get}_caching are still supported on these legacy paltforms for compatibility > reason. > > > > BSpec: 45101 > > > > Test igt@gem_create@create_ext_set_pat posted at > > https://patchwork.freedesktop.org/series/118314/ > > > > Tested with > > https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/22878 > > > > Signed-off-by: Fei Yang <fei.yang@xxxxxxxxx> > > Cc: Chris Wilson <chris.p.wilson@xxxxxxxxxxxxxxx> > > Cc: Matt Roper <matthew.d.roper@xxxxxxxxx> > > Cc: Andi Shyti <andi.shyti@xxxxxxxxxxxxxxx> > > Reviewed-by: Andi Shyti <andi.shyti@xxxxxxxxxxxxxxx> > > Acked-by: Jordan Justen <jordan.l.justen@xxxxxxxxx> > > Tested-by: Jordan Justen <jordan.l.justen@xxxxxxxxx> > > was it your intention to ack this patch? > > Thanks, > Andi
