From: Tvrtko Ursulin <tvrtko.ursulin@linux.intel.com>
To: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>,
intel-gfx@lists.freedesktop.org
Subject: Re: [Intel-gfx] [PATCH 08/26] drm/i915/gem: Make eb_add_lut interruptible wait on object lock.
Date: Mon, 29 Jun 2020 16:14:06 +0100 [thread overview]
Message-ID: <48435be5-d827-d785-9395-0d69a2b061a5@linux.intel.com> (raw)
In-Reply-To: <20200623142843.423594-8-maarten.lankhorst@linux.intel.com>
On 23/06/2020 15:28, Maarten Lankhorst wrote:
> The lock here should be interruptible, so we can backoff if needed.
I spied Chris posting "drm/i915/gem: Move obj->lut_list under its own
lock" so maybe have a look at that.
My question here is..
>
> Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
> ---
> drivers/gpu/drm/i915/gem/i915_gem_execbuffer.c | 8 +++++++-
> 1 file changed, 7 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/gpu/drm/i915/gem/i915_gem_execbuffer.c b/drivers/gpu/drm/i915/gem/i915_gem_execbuffer.c
> index 2636a130fb57..aa441af81431 100644
> --- a/drivers/gpu/drm/i915/gem/i915_gem_execbuffer.c
> +++ b/drivers/gpu/drm/i915/gem/i915_gem_execbuffer.c
> @@ -774,7 +774,12 @@ static int __eb_add_lut(struct i915_execbuffer *eb,
> if (err == 0) { /* And nor has this handle */
> struct drm_i915_gem_object *obj = vma->obj;
>
> - i915_gem_object_lock(obj, NULL);
> + err = i915_gem_object_lock_interruptible(obj, NULL);
.. does this lock-unlock survive to the end of your series or gets
completely subsumed by the ctx locking?
Regards,
Tvrtko
> + if (err) {
> + radix_tree_delete(&ctx->handles_vma, handle);
> + goto unlock;
> + }
> +
> if (idr_find(&eb->file->object_idr, handle) == obj) {
> list_add(&lut->obj_link, &obj->lut_list);
> } else {
> @@ -783,6 +788,7 @@ static int __eb_add_lut(struct i915_execbuffer *eb,
> }
> i915_gem_object_unlock(obj);
> }
> +unlock:
> mutex_unlock(&ctx->mutex);
> }
> if (unlikely(err))
>
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next prev parent reply other threads:[~2020-06-29 15:14 UTC|newest]
Thread overview: 60+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-06-23 14:28 [Intel-gfx] [PATCH 01/26] Revert "drm/i915/gem: Async GPU relocations only" Maarten Lankhorst
2020-06-23 14:28 ` [Intel-gfx] [PATCH 02/26] drm/i915: Revert relocation chaining commits Maarten Lankhorst
2020-06-23 14:28 ` [Intel-gfx] [PATCH 03/26] Revert "drm/i915/gem: Drop relocation slowpath" Maarten Lankhorst
2020-06-23 14:28 ` [Intel-gfx] [PATCH 04/26] drm/i915: Add an implementation for i915_gem_ww_ctx locking, v2 Maarten Lankhorst
2020-06-24 7:10 ` Thomas Hellström (Intel)
2020-06-24 7:43 ` Chris Wilson
2020-06-24 7:49 ` Thomas Hellström (Intel)
2020-06-24 8:27 ` Chris Wilson
2020-06-29 12:07 ` Tvrtko Ursulin
2020-06-29 12:32 ` Tvrtko Ursulin
2020-06-29 13:44 ` Maarten Lankhorst
2020-06-23 14:28 ` [Intel-gfx] [PATCH 05/26] drm/i915: Remove locking from i915_gem_object_prepare_read/write Maarten Lankhorst
2020-06-26 13:32 ` Thomas Hellström (Intel)
2020-06-29 12:56 ` Tvrtko Ursulin
2020-06-23 14:28 ` [Intel-gfx] [PATCH 06/26] drm/i915: Parse command buffer earlier in eb_relocate(slow) Maarten Lankhorst
2020-06-26 14:41 ` Thomas Hellström (Intel)
2020-06-29 10:40 ` Maarten Lankhorst
2020-06-29 11:15 ` Thomas Hellström (Intel)
2020-06-29 11:18 ` Maarten Lankhorst
2020-06-29 14:42 ` Tvrtko Ursulin
2020-06-23 14:28 ` [Intel-gfx] [PATCH 07/26] Revert "drm/i915/gem: Split eb_vma into its own allocation" Maarten Lankhorst
2020-06-29 15:08 ` Tvrtko Ursulin
2020-06-30 11:52 ` Maarten Lankhorst
2020-06-30 12:31 ` Tvrtko Ursulin
2020-06-30 14:07 ` Maarten Lankhorst
2020-06-23 14:28 ` [Intel-gfx] [PATCH 08/26] drm/i915/gem: Make eb_add_lut interruptible wait on object lock Maarten Lankhorst
2020-06-26 13:52 ` Thomas Hellström (Intel)
2020-06-29 15:14 ` Tvrtko Ursulin [this message]
2020-06-30 11:56 ` Maarten Lankhorst
2020-06-23 14:28 ` [Intel-gfx] [PATCH 09/26] drm/i915: Use per object locking in execbuf, v12 Maarten Lankhorst
2020-06-23 14:28 ` [Intel-gfx] [PATCH 10/26] drm/i915: Use ww locking in intel_renderstate Maarten Lankhorst
2020-06-23 14:28 ` [Intel-gfx] [PATCH 11/26] drm/i915: Add ww context handling to context_barrier_task Maarten Lankhorst
2020-06-23 14:28 ` [Intel-gfx] [PATCH 12/26] drm/i915: Nuke arguments to eb_pin_engine Maarten Lankhorst
2020-06-23 14:28 ` [Intel-gfx] [PATCH 13/26] drm/i915: Pin engine before pinning all objects, v4 Maarten Lankhorst
2020-06-23 14:28 ` [Intel-gfx] [PATCH 14/26] drm/i915: Rework intel_context pinning to do everything outside of pin_mutex Maarten Lankhorst
2020-06-23 14:28 ` [Intel-gfx] [PATCH 15/26] drm/i915: Make sure execbuffer always passes ww state to i915_vma_pin Maarten Lankhorst
2020-06-25 14:32 ` Thomas Hellström (Intel)
2020-06-23 14:28 ` [Intel-gfx] [PATCH 16/26] drm/i915: Convert i915_gem_object/client_blt.c to use ww locking as well, v2 Maarten Lankhorst
2020-06-23 14:28 ` [Intel-gfx] [PATCH 17/26] drm/i915: Kill last user of intel_context_create_request outside of selftests Maarten Lankhorst
2020-06-23 14:28 ` [Intel-gfx] [PATCH 18/26] drm/i915: Convert i915_perf to ww locking as well Maarten Lankhorst
2020-06-23 14:28 ` [Intel-gfx] [PATCH 19/26] drm/i915: Dirty hack to fix selftests locking inversion Maarten Lankhorst
2020-06-23 14:28 ` [Intel-gfx] [PATCH 20/26] drm/i915/selftests: Fix locking inversion in lrc selftest Maarten Lankhorst
2020-06-23 14:28 ` [Intel-gfx] [PATCH 21/26] drm/i915: Use ww pinning for intel_context_create_request() Maarten Lankhorst
2020-06-23 14:28 ` [Intel-gfx] [PATCH 22/26] drm/i915: Move i915_vma_lock in the selftests to avoid lock inversion, v2 Maarten Lankhorst
2020-06-23 14:28 ` [Intel-gfx] [PATCH 23/26] drm/i915: Add ww locking to vm_fault_gtt Maarten Lankhorst
2020-06-23 14:28 ` [Intel-gfx] [PATCH 24/26] drm/i915: Add ww locking to pin_to_display_plane Maarten Lankhorst
2020-06-23 14:28 ` [Intel-gfx] [PATCH 25/26] drm/i915: Ensure we hold the pin mutex Maarten Lankhorst
2020-06-23 14:28 ` [Intel-gfx] [PATCH 26/26] drm/i915: Kill context before taking ctx->mutex Maarten Lankhorst
2020-06-24 11:05 ` [Intel-gfx] [PATCH] " Maarten Lankhorst
2020-06-30 14:16 ` Tvrtko Ursulin
2020-07-02 13:26 ` Maarten Lankhorst
2020-07-02 14:51 ` Tvrtko Ursulin
2020-07-03 10:35 ` Maarten Lankhorst
2020-06-23 15:23 ` [Intel-gfx] [PATCH 01/26] Revert "drm/i915/gem: Async GPU relocations only" Chris Wilson
2020-06-24 11:19 ` Chris Wilson
2020-06-23 15:39 ` [Intel-gfx] ✗ Fi.CI.BUILD: failure for series starting with [01/26] " Patchwork
2020-06-24 11:58 ` [Intel-gfx] ✗ Fi.CI.CHECKPATCH: warning for series starting with [01/26] Revert "drm/i915/gem: Async GPU relocations only" (rev2) Patchwork
2020-06-24 11:59 ` [Intel-gfx] ✗ Fi.CI.SPARSE: " Patchwork
2020-06-24 12:48 ` [Intel-gfx] ✗ Fi.CI.BAT: failure " Patchwork
2020-07-01 13:10 ` [Intel-gfx] ✗ Fi.CI.IGT: " Patchwork
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