From: "Dixit, Ashutosh" <ashutosh.dixit@intel.com>
To: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Cc: intel-xe@lists.freedesktop.org
Subject: Re: [Intel-xe] [PATCH 00/21] Add OA functionality to Xe
Date: Mon, 30 Oct 2023 23:51:27 -0700 [thread overview]
Message-ID: <87r0lb9te8.wl-ashutosh.dixit@intel.com> (raw)
In-Reply-To: <ea455ebb-cc48-4184-8f5b-d9d44d673ab1@intel.com>
On Fri, 20 Oct 2023 00:52:17 -0700, Lionel Landwerlin wrote:
Hi Lionel,
>
> On 20/10/2023 10:44, Lionel Landwerlin wrote:
> > On 19/09/2023 19:10, Ashutosh Dixit wrote:
> >> This patchset is the initial port of i915 perf/OA functionality to the
> >> XE
> >> driver. The following features in i915 have not been ported and will be
> >> added (as new patches) if/as they are needed:
> >>
> >> * Inline batch submission on stream exec_queue/hw_engine
> >
> > If you give us a syncobj to wait on for the NOA reconfiguration this
> > won't be necessary
> >
> >> * NOA wait
> >
> > This is kind of required, otherwise we start reading reports from the OA
> > buffer and the values are garbage
>
> Actually thinking about it, we could use the syncobj you give us and do
> the wait in a userspace batch.
Hmm. Why do we need to do this in userspace? What I was thinking was (a)
KMD submits a few batch buffers to program various things and returns from
the open/reconfigure IOCTL (b) KMD can detect (using fences) when the
submitted batches complete (c) After the batches complete, KMD adds an
addtional 500 us (NOA wait) delay (using the CPU) before signalling the
fence in the uapi. Wouldn't this work?
> >
> >> * GuC ctx id (guc_sw_ctx_id)
> >
> > This is probably fine. On Gfx8 we always consider using OA a privileged
> > operation, if we keep it like that then it's okay.
> >
> >> * CTX_R_PWR_CLK_STATE/GEN8_R_PWR_CLK_STATE
> > I think if we never care about Gfx11 that's fine.
Great, yes no plan to support Gfx11. I was really scared that we don't have
this so it is great to get some confirmation it's not needed for Gfx12+.
> >> * hold_preemption (DRM_XE_OA_PROP_HOLD_PREEMPTION)
> >
> > Without this, we can't implement perf queries in userspace.
> >
> > Maybe that's okay?
Is it ok? You tell me. You mean OAR/OAC MI_RPC like queries? They are not
needed? We were thinking we'll need to support this eventually.
> >
> >> * sseu_config (DRM_XE_OA_PROP_GLOBAL_SSEU)
> > Without Gfx11 probably fine.
Yup no plan to support Gfx11. Thanks for the confirmation on this too.
> >> * MTL bios_c6_setup
> >> * ratelimits
> >> * compat ioctl
Thanks.
--
Ashutosh
prev parent reply other threads:[~2023-10-31 6:51 UTC|newest]
Thread overview: 88+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-09-19 16:10 [Intel-xe] [PATCH 00/21] Add OA functionality to Xe Ashutosh Dixit
2023-09-19 16:10 ` [Intel-xe] [PATCH 01/21] drm/xe/uapi: Introduce OA (observability architecture) uapi Ashutosh Dixit
2023-10-04 0:26 ` Umesh Nerlige Ramappa
2023-10-04 0:36 ` Dixit, Ashutosh
2023-11-04 1:23 ` Dixit, Ashutosh
2023-09-19 16:10 ` [Intel-xe] [PATCH 02/21] drm/xe/oa: Add OA types Ashutosh Dixit
2023-10-13 17:05 ` Umesh Nerlige Ramappa
2023-09-19 16:10 ` [Intel-xe] [PATCH 03/21] drm/xe/oa: Add registers and GPU commands used by OA Ashutosh Dixit
2023-10-13 17:06 ` Umesh Nerlige Ramappa
2023-11-17 22:52 ` Dixit, Ashutosh
2023-09-19 16:10 ` [Intel-xe] [PATCH 04/21] drm/xe/oa: Module init/exit and probe/remove Ashutosh Dixit
2023-10-13 17:50 ` Umesh Nerlige Ramappa
2023-10-20 7:08 ` [Intel-xe] [04/21] " Lionel Landwerlin
2023-10-27 20:28 ` Dixit, Ashutosh
2023-09-19 16:10 ` [Intel-xe] [PATCH 05/21] drm/xe/oa: Add/remove config ioctl's Ashutosh Dixit
2023-10-13 17:59 ` Umesh Nerlige Ramappa
2023-09-19 16:10 ` [Intel-xe] [PATCH 06/21] drm/xe/oa: Start implementing OA stream open ioctl Ashutosh Dixit
2023-10-13 18:09 ` Umesh Nerlige Ramappa
2023-09-19 16:10 ` [Intel-xe] [PATCH 07/21] drm/xe/oa: OA stream initialization Ashutosh Dixit
2023-10-04 15:22 ` Dixit, Ashutosh
2023-09-19 16:10 ` [Intel-xe] [PATCH 08/21] drm/xe/oa: Expose OA stream fd Ashutosh Dixit
2023-10-13 18:17 ` Umesh Nerlige Ramappa
2023-09-19 16:10 ` [Intel-xe] [PATCH 09/21] drm/xe/oa: Read file_operation Ashutosh Dixit
2023-10-14 0:56 ` Umesh Nerlige Ramappa
2023-09-19 16:10 ` [Intel-xe] [PATCH 10/21] drm/xe/oa: Implement queries Ashutosh Dixit
2023-10-14 0:58 ` Umesh Nerlige Ramappa
2023-09-19 16:10 ` [Intel-xe] [PATCH 11/21] drm/xe/oa: Override GuC RC with OA on PVC Ashutosh Dixit
2023-10-16 17:43 ` Umesh Nerlige Ramappa
2023-09-19 16:10 ` [Intel-xe] [PATCH 12/21] drm/xe/uapi: "Perf" layer to support multiple perf counter stream types Ashutosh Dixit
2023-10-04 2:13 ` Umesh Nerlige Ramappa
2023-10-05 4:33 ` Dixit, Ashutosh
2023-09-19 16:10 ` [Intel-xe] [PATCH 13/21] drm/xe/uapi: Multiplex PERF ops through a single PERF ioctl Ashutosh Dixit
2023-10-04 2:23 ` Umesh Nerlige Ramappa
2023-10-05 5:27 ` Dixit, Ashutosh
2023-10-05 15:22 ` Dixit, Ashutosh
2023-10-05 18:27 ` Umesh Nerlige Ramappa
2023-10-05 23:18 ` Dixit, Ashutosh
2023-09-19 16:10 ` [Intel-xe] [PATCH 14/21] drm/xe/uapi: Simplify OA configs in uapi Ashutosh Dixit
2023-10-04 2:26 ` Umesh Nerlige Ramappa
2023-10-04 15:44 ` Dixit, Ashutosh
2023-10-04 16:13 ` Rodrigo Vivi
2023-09-19 16:10 ` [Intel-xe] [PATCH 15/21] drm/xe/uapi: Remove OA format names from OA uapi Ashutosh Dixit
2023-10-04 2:33 ` Umesh Nerlige Ramappa
2023-10-05 6:13 ` Dixit, Ashutosh
2023-09-19 16:10 ` [Intel-xe] [PATCH 16/21] drm/xe/oa: Make xe_oa_timestamp_frequency per gt Ashutosh Dixit
2023-09-21 20:45 ` Rodrigo Vivi
2023-09-21 21:58 ` Dixit, Ashutosh
2023-09-22 19:10 ` Rodrigo Vivi
2023-09-19 16:10 ` [Intel-xe] [PATCH 17/21] drm/xe/oa: Remove filtering reports on context id Ashutosh Dixit
2023-10-14 1:01 ` Umesh Nerlige Ramappa
2023-10-20 7:30 ` [Intel-xe] [17/21] " Lionel Landwerlin
2023-10-20 17:00 ` Umesh Nerlige Ramappa
2023-09-19 16:10 ` [Intel-xe] [PATCH 18/21] drm/xe/uapi: More OA uapi fixes/additions Ashutosh Dixit
2023-10-04 0:23 ` Dixit, Ashutosh
2023-10-05 22:33 ` Dixit, Ashutosh
2023-10-12 3:14 ` Umesh Nerlige Ramappa
2023-10-20 7:28 ` [Intel-xe] [18/21] " Lionel Landwerlin
2023-10-27 20:28 ` Dixit, Ashutosh
2023-10-30 10:06 ` Lionel Landwerlin
2023-10-31 2:08 ` Dixit, Ashutosh
2023-09-19 16:10 ` [Intel-xe] [PATCH 19/21] drm/xe/uapi: Drop OA_IOCTL_VERSION Ashutosh Dixit
2023-09-19 17:02 ` Dixit, Ashutosh
2023-10-04 2:37 ` Umesh Nerlige Ramappa
2023-10-05 3:28 ` Dixit, Ashutosh
2023-10-05 19:35 ` Umesh Nerlige Ramappa
2023-10-20 7:36 ` [Intel-xe] [19/21] " Lionel Landwerlin
2023-10-23 23:02 ` Umesh Nerlige Ramappa
2023-10-24 4:08 ` Dixit, Ashutosh
2023-10-24 15:54 ` Dixit, Ashutosh
2023-09-19 16:10 ` [Intel-xe] [PATCH 20/21] drm/xe/uapi: Use OA unit id to identify OA unit Ashutosh Dixit
2023-10-04 22:37 ` Umesh Nerlige Ramappa
2023-10-05 3:04 ` Dixit, Ashutosh
2023-10-05 3:09 ` Dixit, Ashutosh
2023-09-19 16:10 ` [Intel-xe] [PATCH 21/21] drm/xe/uapi: Convert OA property key/value pairs to a struct Ashutosh Dixit
2023-09-21 23:53 ` Dixit, Ashutosh
2023-10-05 5:37 ` Dixit, Ashutosh
2023-10-05 19:26 ` Umesh Nerlige Ramappa
2023-09-19 16:19 ` [Intel-xe] ✓ CI.Patch_applied: success for Add OA functionality to Xe (rev6) Patchwork
2023-09-19 16:19 ` [Intel-xe] ✗ CI.checkpatch: warning " Patchwork
2023-09-19 16:21 ` [Intel-xe] ✓ CI.KUnit: success " Patchwork
2023-09-19 16:28 ` [Intel-xe] ✓ CI.Build: " Patchwork
2023-09-19 16:28 ` [Intel-xe] ✗ CI.Hooks: failure " Patchwork
2023-09-19 16:29 ` [Intel-xe] ✓ CI.checksparse: success " Patchwork
2023-09-19 17:04 ` [Intel-xe] ✗ CI.BAT: failure " Patchwork
2023-10-14 1:05 ` [Intel-xe] [PATCH 00/21] Add OA functionality to Xe Umesh Nerlige Ramappa
2023-10-20 7:44 ` Lionel Landwerlin
2023-10-20 7:52 ` Lionel Landwerlin
2023-10-31 6:51 ` Dixit, Ashutosh [this message]
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