Jason Ekstrand fe4751c3d5 drm/i915: Drop I915_CONTEXT_PARAM_RINGSIZE ... This reverts commit 88be76cdaf ("drm/i915: Allow userspace to specify ringsize on construction"). This API was originally added for OpenCL but the compute-runtime PR has sat open for a year without action so we can still pull it out if we want. I argue we should drop it for three reasons: 1. If the compute-runtime PR has sat open for a year, this clearly isn't that important. 2. It's a very leaky API. Ring size is an implementation detail of the current execlist scheduler and really only makes sense there. It can't apply to the older ring-buffer scheduler on pre-execlist hardware because that's shared across all contexts and it won't apply to the GuC scheduler that's in the pipeline. 3. Having userspace set a ring size in bytes is a bad solution to the problem of having too small a ring. There is no way that userspace has the information to know how to properly set the ring size so it's just going to detect the feature and always set it to the maximum of 512K. This is what the compute-runtime PR does. The scheduler in i915, on the other hand, does have the information to make an informed choice. It could detect if the ring size is a problem and grow it itself. Or, if that's too hard, we could just increase the default size from 16K to 32K or even 64K instead of relying on userspace to do it. Let's drop this API for now and, if someone decides they really care about solving this problem, they can do it properly. Signed-off-by: Jason Ekstrand <jason@jlekstrand.net> Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: https://patchwork.freedesktop.org/patch/msgid/20210708154835.528166-2-jason@jlekstrand.net		2021-07-08 19:43:27 +02:00
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asm-generic	Merge branch 'for-v5.13-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace	2021-05-21 06:12:52 -10:00
drm	drm/i915: Drop I915_CONTEXT_PARAM_RINGSIZE	2021-07-08 19:43:27 +02:00
linux	Linux 5.13-rc3	2021-05-27 13:07:47 +02:00
misc	habanalabs: expose ASIC specific PLL index	2021-05-08 11:21:57 +03:00
mtd	mtd: add OTP (one-time-programmable) erase ioctl	2021-03-28 19:24:54 +02:00
rdma	RDMA/nldev: Add copy-on-fork attribute to get sys command	2021-04-27 15:33:20 -03:00
scsi
sound	Auxiliary Bus support tag for 5.11-rc1	2020-12-04 20:39:45 +00:00
video
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