All of lore.kernel.org
 help / color / mirror / Atom feed
From: Chris Wilson <chris@chris-wilson.co.uk>
To: intel-gfx@lists.freedesktop.org
Cc: Kenneth Graunke <kenneth@whitecape.org>,
	Chris Wilson <chris@chris-wilson.co.uk>
Subject: [Intel-gfx] [PATCH 12/22] drm/i915/gt: Declare when we enabled timeslicing
Date: Mon,  4 May 2020 05:48:53 +0100	[thread overview]
Message-ID: <20200504044903.7626-12-chris@chris-wilson.co.uk> (raw)
In-Reply-To: <20200504044903.7626-1-chris@chris-wilson.co.uk>

Let userspace know if they can trust timeslicing by including it as part
of the I915_PARAM_HAS_SCHEDULER::I915_SCHEDULER_CAP_TIMESLICING

v2: Only declare timeslicing if we can safely preempt userspace.

Fixes: 8ee36e048c98 ("drm/i915/execlists: Minimalistic timeslicing")
Link: https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/3802
Link: https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4854
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Kenneth Graunke <kenneth@whitecape.org>
Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
---
 drivers/gpu/drm/i915/gt/intel_engine_user.c | 1 +
 include/uapi/drm/i915_drm.h                 | 1 +
 2 files changed, 2 insertions(+)

diff --git a/drivers/gpu/drm/i915/gt/intel_engine_user.c b/drivers/gpu/drm/i915/gt/intel_engine_user.c
index 848decee9066..8415511f1465 100644
--- a/drivers/gpu/drm/i915/gt/intel_engine_user.c
+++ b/drivers/gpu/drm/i915/gt/intel_engine_user.c
@@ -98,6 +98,7 @@ static void set_scheduler_caps(struct drm_i915_private *i915)
 		MAP(HAS_PREEMPTION, PREEMPTION),
 		MAP(HAS_SEMAPHORES, SEMAPHORES),
 		MAP(SUPPORTS_STATS, ENGINE_BUSY_STATS),
+		MAP(HAS_TIMESLICES, TIMESLICING),
 #undef MAP
 	};
 	struct intel_engine_cs *engine;
diff --git a/include/uapi/drm/i915_drm.h b/include/uapi/drm/i915_drm.h
index 704dd0e3bc1d..1ee227b5131a 100644
--- a/include/uapi/drm/i915_drm.h
+++ b/include/uapi/drm/i915_drm.h
@@ -523,6 +523,7 @@ typedef struct drm_i915_irq_wait {
 #define   I915_SCHEDULER_CAP_PREEMPTION	(1ul << 2)
 #define   I915_SCHEDULER_CAP_SEMAPHORES	(1ul << 3)
 #define   I915_SCHEDULER_CAP_ENGINE_BUSY_STATS	(1ul << 4)
+#define   I915_SCHEDULER_CAP_TIMESLICING	(1ul << 5)
 
 #define I915_PARAM_HUC_STATUS		 42
 
-- 
2.20.1

_______________________________________________
Intel-gfx mailing list
Intel-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/intel-gfx

  parent reply	other threads:[~2020-05-04  4:49 UTC|newest]

Thread overview: 41+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-05-04  4:48 [Intel-gfx] [PATCH 01/22] drm/i915: Allow some leniency in PCU reads Chris Wilson
2020-05-04  4:48 ` [Intel-gfx] [PATCH 02/22] drm/i915/gem: Specify address type for chained reloc batches Chris Wilson
2020-05-04 11:49   ` Tvrtko Ursulin
2020-05-04 11:53     ` Chris Wilson
2020-05-04 12:15       ` Tvrtko Ursulin
2020-05-04  4:48 ` [Intel-gfx] [PATCH 03/22] drm/i915/gem: Implement legacy MI_STORE_DATA_IMM Chris Wilson
2020-05-04 12:58   ` Tvrtko Ursulin
2020-05-04 13:08     ` Chris Wilson
2020-05-04 13:22   ` [Intel-gfx] [PATCH v2] " Chris Wilson
2020-05-04 13:33     ` Tvrtko Ursulin
2020-05-04  4:48 ` [Intel-gfx] [PATCH 04/22] drm/i915/gt: Small tidy of gen8+ breadcrumb emission Chris Wilson
2020-05-04  4:48 ` [PATCH 05/22] drm/i915: Mark concurrent submissions with a weak-dependency Chris Wilson
2020-05-04  4:48   ` [Intel-gfx] " Chris Wilson
2020-05-04  4:48 ` [Intel-gfx] [PATCH 06/22] drm/i915/selftests: Repeat the rps clock frequency measurement Chris Wilson
2020-05-04 17:17   ` Mika Kuoppala
2020-05-04  4:48 ` [Intel-gfx] [PATCH 07/22] drm/i915/gt: Stop holding onto the pinned_default_state Chris Wilson
2020-05-05 20:08   ` Andi Shyti
2020-05-05 20:13     ` Chris Wilson
2020-05-04  4:48 ` [Intel-gfx] [PATCH 08/22] dma-buf: Proxy fence, an unsignaled fence placeholder Chris Wilson
2020-05-04  4:48 ` [Intel-gfx] [PATCH 09/22] drm/syncobj: Allow use of dma-fence-proxy Chris Wilson
2020-05-04  4:48 ` [Intel-gfx] [PATCH 10/22] drm/i915/gem: Teach execbuf how to wait on future syncobj Chris Wilson
2020-05-04  4:48 ` [Intel-gfx] [PATCH 11/22] drm/i915/gem: Allow combining submit-fences with syncobj Chris Wilson
2020-05-04  4:48 ` Chris Wilson [this message]
2020-05-04  4:48 ` [Intel-gfx] [PATCH 13/22] drm/i915: Replace the hardcoded I915_FENCE_TIMEOUT Chris Wilson
2020-05-04  4:48 ` [Intel-gfx] [PATCH 14/22] drm/i915: Drop I915_RESET_TIMEOUT and friends Chris Wilson
2020-05-04  4:48 ` [Intel-gfx] [PATCH 15/22] drm/i915: Drop I915_IDLE_ENGINES_TIMEOUT Chris Wilson
2020-05-04  4:48 ` [Intel-gfx] [PATCH 16/22] drm/i915: Always defer fenced work to the worker Chris Wilson
2020-05-04  4:48 ` [Intel-gfx] [PATCH 17/22] drm/i915/gem: Assign context id for async work Chris Wilson
2020-05-04  4:48 ` [Intel-gfx] [PATCH 18/22] drm/i915: Export a preallocate variant of i915_active_acquire() Chris Wilson
2020-05-04  4:49 ` [Intel-gfx] [PATCH 19/22] drm/i915/gem: Separate the ww_mutex walker into its own list Chris Wilson
2020-05-04  4:49 ` [Intel-gfx] [PATCH 20/22] drm/i915/gem: Asynchronous GTT unbinding Chris Wilson
2020-05-04  4:49 ` [Intel-gfx] [PATCH 21/22] drm/i915/gem: Bind the fence async for execbuf Chris Wilson
2020-05-04  4:49 ` [Intel-gfx] [PATCH 22/22] drm/i915/gem: Lazily acquire the device wakeref for freeing objects Chris Wilson
2020-05-04  5:16 ` [Intel-gfx] ✗ Fi.CI.CHECKPATCH: warning for series starting with [01/22] drm/i915: Allow some leniency in PCU reads Patchwork
2020-05-04  5:40 ` [Intel-gfx] ✓ Fi.CI.BAT: success " Patchwork
2020-05-04  9:52 ` [Intel-gfx] [PATCH 01/22] " Mika Kuoppala
2020-05-04 10:00   ` Chris Wilson
2020-05-04 13:43 ` [Intel-gfx] ✗ Fi.CI.CHECKPATCH: warning for series starting with [01/22] drm/i915: Allow some leniency in PCU reads (rev2) Patchwork
2020-05-04 13:49 ` [Intel-gfx] ✓ Fi.CI.IGT: success for series starting with [01/22] drm/i915: Allow some leniency in PCU reads Patchwork
2020-05-04 14:07 ` [Intel-gfx] ✓ Fi.CI.BAT: success for series starting with [01/22] drm/i915: Allow some leniency in PCU reads (rev2) Patchwork
2020-05-05  1:31 ` [Intel-gfx] ✓ Fi.CI.IGT: " Patchwork

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20200504044903.7626-12-chris@chris-wilson.co.uk \
    --to=chris@chris-wilson.co.uk \
    --cc=intel-gfx@lists.freedesktop.org \
    --cc=kenneth@whitecape.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body. 
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.