That actually makes sense. It came up because mmPA_SC_RASTER_CONFIG (and _1) are read by libdrm with a selection of 0/*/* for se/sh/instance so I wanted to be able to reproduce that via the debugfs interface for testing. But ya, if you use the broadcast bit who are you reading from then ... hmm.. Tom ________________________________ From: amd-gfx <amd-gfx-bounces@xxxxxxxxxxxxxxxxxxxxx> on behalf of Michel Dänzer <michel.daenzer at mailbox.org> Sent: Monday, October 10, 2016 23:52 To: Tom St Denis Cc: amd-gfx at lists.freedesktop.org Subject: Re: [PATCH] drm/amd/amdgpu: Allow broadcast on debugfs read (v2) On 09/10/16 08:58 PM, Tom St Denis wrote: > Allow any of the se/sh/instance fields to be > specified as a broadcast by submitting 0x3FF. > > (v2) Fix broadcast range checking > > Signed-off-by: Tom St Denis <tom.stdenis at amd.com> I'm not sure how a "broadcast read" is supposed to work? I can only see the register specs talking about broadcast in connection with writes. -- Earthling Michel Dänzer | http://www.amd.com Graphics, Processors and Immersive VR Solutions | AMD <http://www.amd.com/> www.amd.com Explore a wide range of innovative next generation computing processors, graphics, and Immersive VR solutions by Advanced Micro Devices (AMD). Visit AMD.com now! Libre software enthusiast | Mesa and X developer _______________________________________________ amd-gfx mailing list amd-gfx at lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/amd-gfx amd-gfx Info Page - lists.freedesktop.org<https://lists.freedesktop.org/mailman/listinfo/amd-gfx> lists.freedesktop.org To see the collection of prior postings to the list, visit the amd-gfx Archives. Using amd-gfx: To post a message to all the list members, send email ... -------------- next part -------------- An HTML attachment was scrubbed... URL: <https://lists.freedesktop.org/archives/amd-gfx/attachments/20161011/e009f52c/attachment.html>
