#panfrost on 2020-03-08 — irc logs at freenode.irclog.whitequark.org

2019-09-06 11:20 alyssa changed the topic of #panfrost to: Panfrost - FLOSS Mali Midgard & Bifrost - Logs https://freenode.irclog.whitequark.org/panfrost - <daniels> avoiding X is a huge feature

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13:38 <alyssa> anarsoul|2: r-b here

13:38 <alyssa> ("Alyssa why are you on IRC on sunday?" "Uhhhh")

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16:11 <karolherbst> somebody interested in 64 bit atomic lowering to cas?

16:11 <karolherbst> I need it for shared memory

16:11 <karolherbst> and I was wondering if you have some atomics your hw doesn't implement

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17:16 <alyssa> karolherbst: cas?

17:17 <karolherbst> compare and swap

17:19 <karolherbst> alyssa: we essentially only have cas for 64 bit shared memory.. but all the other ops can be lowered on top of that

17:19 <karolherbst> just a bit annoying

17:20 <karolherbst> alyssa: https://gitlab.freedesktop.org/karolherbst/mesa/-/commit/62bc5ab0aaa5867588b715fd5460b70e8ec439d7

17:20 <karolherbst> we also need this for fadd 32 bit lowering or so

17:21 <karolherbst> I mean.. atomic fadd 32 bit on shared memory

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17:57 <alyssa> karolherbst: I can look tomorrow but i think we have the full set for both 32 and 64

17:59 <karolherbst> alyssa: we have it for global as well.. just shared memory we don't have it

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