From: Rob Clark <robdclark@gmail.com>
To: dri-devel@lists.freedesktop.org
Cc: Daniel Vetter <daniel@ffwll.ch>,
Rob Clark <robdclark@chromium.org>,
Rob Clark <robdclark@gmail.com>, Sean Paul <sean@poorly.run>,
David Airlie <airlied@linux.ie>,
linux-arm-msm@vger.kernel.org (open list:DRM DRIVER FOR MSM
ADRENO GPU),
freedreno@lists.freedesktop.org (open list:DRM DRIVER FOR MSM
ADRENO GPU), linux-kernel@vger.kernel.org (open list)
Subject: [PATCH v2 16/22] drm/msm: Remove obj->gpu
Date: Sun, 11 Oct 2020 19:09:43 -0700 [thread overview]
Message-ID: <20201012020958.229288-17-robdclark@gmail.com> (raw)
In-Reply-To: <20201012020958.229288-1-robdclark@gmail.com>
From: Rob Clark <robdclark@chromium.org>
It cannot be atomically updated with obj->active_count, and the only
purpose is a useless WARN_ON() (which becomes a buggy WARN_ON() once
retire_submits() is not serialized with incoming submits via
struct_mutex)
Signed-off-by: Rob Clark <robdclark@chromium.org>
---
drivers/gpu/drm/msm/msm_gem.c | 2 --
drivers/gpu/drm/msm/msm_gem.h | 1 -
drivers/gpu/drm/msm/msm_gpu.c | 5 -----
3 files changed, 8 deletions(-)
diff --git a/drivers/gpu/drm/msm/msm_gem.c b/drivers/gpu/drm/msm/msm_gem.c
index 15f81ed2e154..cdbbdd848fe3 100644
--- a/drivers/gpu/drm/msm/msm_gem.c
+++ b/drivers/gpu/drm/msm/msm_gem.c
@@ -760,7 +760,6 @@ void msm_gem_active_get(struct drm_gem_object *obj, struct msm_gpu *gpu)
if (!atomic_fetch_inc(&msm_obj->active_count)) {
mutex_lock(&priv->mm_lock);
- msm_obj->gpu = gpu;
list_del_init(&msm_obj->mm_list);
list_add_tail(&msm_obj->mm_list, &gpu->active_list);
mutex_unlock(&priv->mm_lock);
@@ -776,7 +775,6 @@ void msm_gem_active_put(struct drm_gem_object *obj)
if (!atomic_dec_return(&msm_obj->active_count)) {
mutex_lock(&priv->mm_lock);
- msm_obj->gpu = NULL;
list_del_init(&msm_obj->mm_list);
list_add_tail(&msm_obj->mm_list, &priv->inactive_list);
mutex_unlock(&priv->mm_lock);
diff --git a/drivers/gpu/drm/msm/msm_gem.h b/drivers/gpu/drm/msm/msm_gem.h
index 93ee73c620ed..bf5f9e94d0d3 100644
--- a/drivers/gpu/drm/msm/msm_gem.h
+++ b/drivers/gpu/drm/msm/msm_gem.h
@@ -64,7 +64,6 @@ struct msm_gem_object {
*
*/
struct list_head mm_list;
- struct msm_gpu *gpu; /* non-null if active */
/* Transiently in the process of submit ioctl, objects associated
* with the submit are on submit->bo_list.. this only lasts for
diff --git a/drivers/gpu/drm/msm/msm_gpu.c b/drivers/gpu/drm/msm/msm_gpu.c
index 18a7948ac437..8278a4df331a 100644
--- a/drivers/gpu/drm/msm/msm_gpu.c
+++ b/drivers/gpu/drm/msm/msm_gpu.c
@@ -800,11 +800,6 @@ void msm_gpu_submit(struct msm_gpu *gpu, struct msm_gem_submit *submit)
struct drm_gem_object *drm_obj = &msm_obj->base;
uint64_t iova;
- /* can't happen yet.. but when we add 2d support we'll have
- * to deal w/ cross-ring synchronization:
- */
- WARN_ON(is_active(msm_obj) && (msm_obj->gpu != gpu));
-
/* submit takes a reference to the bo and iova until retired: */
drm_gem_object_get(&msm_obj->base);
msm_gem_get_and_pin_iova_locked(&msm_obj->base, submit->aspace, &iova);
--
2.26.2
WARNING: multiple messages have this Message-ID (diff)
From: Rob Clark <robdclark@gmail.com>
To: dri-devel@lists.freedesktop.org
Cc: Rob Clark <robdclark@chromium.org>,
"open list:DRM DRIVER FOR MSM ADRENO GPU"
<freedreno@lists.freedesktop.org>,
David Airlie <airlied@linux.ie>,
"open list:DRM DRIVER FOR MSM ADRENO GPU"
<linux-arm-msm@vger.kernel.org>,
open list <linux-kernel@vger.kernel.org>,
Sean Paul <sean@poorly.run>
Subject: [PATCH v2 16/22] drm/msm: Remove obj->gpu
Date: Sun, 11 Oct 2020 19:09:43 -0700 [thread overview]
Message-ID: <20201012020958.229288-17-robdclark@gmail.com> (raw)
In-Reply-To: <20201012020958.229288-1-robdclark@gmail.com>
From: Rob Clark <robdclark@chromium.org>
It cannot be atomically updated with obj->active_count, and the only
purpose is a useless WARN_ON() (which becomes a buggy WARN_ON() once
retire_submits() is not serialized with incoming submits via
struct_mutex)
Signed-off-by: Rob Clark <robdclark@chromium.org>
---
drivers/gpu/drm/msm/msm_gem.c | 2 --
drivers/gpu/drm/msm/msm_gem.h | 1 -
drivers/gpu/drm/msm/msm_gpu.c | 5 -----
3 files changed, 8 deletions(-)
diff --git a/drivers/gpu/drm/msm/msm_gem.c b/drivers/gpu/drm/msm/msm_gem.c
index 15f81ed2e154..cdbbdd848fe3 100644
--- a/drivers/gpu/drm/msm/msm_gem.c
+++ b/drivers/gpu/drm/msm/msm_gem.c
@@ -760,7 +760,6 @@ void msm_gem_active_get(struct drm_gem_object *obj, struct msm_gpu *gpu)
if (!atomic_fetch_inc(&msm_obj->active_count)) {
mutex_lock(&priv->mm_lock);
- msm_obj->gpu = gpu;
list_del_init(&msm_obj->mm_list);
list_add_tail(&msm_obj->mm_list, &gpu->active_list);
mutex_unlock(&priv->mm_lock);
@@ -776,7 +775,6 @@ void msm_gem_active_put(struct drm_gem_object *obj)
if (!atomic_dec_return(&msm_obj->active_count)) {
mutex_lock(&priv->mm_lock);
- msm_obj->gpu = NULL;
list_del_init(&msm_obj->mm_list);
list_add_tail(&msm_obj->mm_list, &priv->inactive_list);
mutex_unlock(&priv->mm_lock);
diff --git a/drivers/gpu/drm/msm/msm_gem.h b/drivers/gpu/drm/msm/msm_gem.h
index 93ee73c620ed..bf5f9e94d0d3 100644
--- a/drivers/gpu/drm/msm/msm_gem.h
+++ b/drivers/gpu/drm/msm/msm_gem.h
@@ -64,7 +64,6 @@ struct msm_gem_object {
*
*/
struct list_head mm_list;
- struct msm_gpu *gpu; /* non-null if active */
/* Transiently in the process of submit ioctl, objects associated
* with the submit are on submit->bo_list.. this only lasts for
diff --git a/drivers/gpu/drm/msm/msm_gpu.c b/drivers/gpu/drm/msm/msm_gpu.c
index 18a7948ac437..8278a4df331a 100644
--- a/drivers/gpu/drm/msm/msm_gpu.c
+++ b/drivers/gpu/drm/msm/msm_gpu.c
@@ -800,11 +800,6 @@ void msm_gpu_submit(struct msm_gpu *gpu, struct msm_gem_submit *submit)
struct drm_gem_object *drm_obj = &msm_obj->base;
uint64_t iova;
- /* can't happen yet.. but when we add 2d support we'll have
- * to deal w/ cross-ring synchronization:
- */
- WARN_ON(is_active(msm_obj) && (msm_obj->gpu != gpu));
-
/* submit takes a reference to the bo and iova until retired: */
drm_gem_object_get(&msm_obj->base);
msm_gem_get_and_pin_iova_locked(&msm_obj->base, submit->aspace, &iova);
--
2.26.2
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next prev parent reply other threads:[~2020-10-12 2:10 UTC|newest]
Thread overview: 100+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-10-12 2:09 [PATCH 00/14] drm/msm: de-struct_mutex-ification Rob Clark
2020-10-12 2:09 ` Rob Clark
2020-10-12 2:09 ` [PATCH v2 01/22] drm/msm/gem: Add obj->lock wrappers Rob Clark
2020-10-12 2:09 ` Rob Clark
2020-10-12 2:09 ` [PATCH v2 02/22] drm/msm/gem: Rename internal get_iova_locked helper Rob Clark
2020-10-12 2:09 ` Rob Clark
2020-10-12 2:09 ` [PATCH v2 03/22] drm/msm/gem: Move prototypes to msm_gem.h Rob Clark
2020-10-12 2:09 ` Rob Clark
2020-10-12 2:09 ` [PATCH v2 04/22] drm/msm/gem: Add some _locked() helpers Rob Clark
2020-10-12 2:09 ` Rob Clark
2020-10-12 2:09 ` [PATCH v2 05/22] drm/msm/gem: Move locking in shrinker path Rob Clark
2020-10-12 2:09 ` Rob Clark
2020-10-12 2:09 ` [PATCH v2 06/22] drm/msm/submit: Move copy_from_user ahead of locking bos Rob Clark
2020-10-12 2:09 ` Rob Clark
2020-10-12 2:09 ` [PATCH v2 07/22] drm/msm: Do rpm get sooner in the submit path Rob Clark
2020-10-12 2:09 ` Rob Clark
2020-10-12 14:35 ` Daniel Vetter
2020-10-12 14:35 ` Daniel Vetter
2020-10-12 15:43 ` Rob Clark
2020-10-12 15:43 ` Rob Clark
2020-10-20 9:07 ` Viresh Kumar
2020-10-20 9:07 ` Viresh Kumar
2020-10-20 10:56 ` Daniel Vetter
2020-10-20 10:56 ` Daniel Vetter
2020-10-20 11:24 ` Viresh Kumar
2020-10-20 11:24 ` Viresh Kumar
2020-10-20 11:42 ` Daniel Vetter
2020-10-20 11:42 ` Daniel Vetter
2020-10-20 14:13 ` Rob Clark
2020-10-20 14:13 ` Rob Clark
2020-10-22 8:06 ` Viresh Kumar
2020-10-22 8:06 ` Viresh Kumar
2020-10-25 17:39 ` Rob Clark
2020-10-25 17:39 ` Rob Clark
2020-10-27 11:35 ` Viresh Kumar
2020-10-27 11:35 ` Viresh Kumar
2020-11-03 5:47 ` Viresh Kumar
2020-11-03 5:47 ` Viresh Kumar
2020-11-03 16:50 ` Rob Clark
2020-11-03 16:50 ` Rob Clark
2020-11-04 3:03 ` Viresh Kumar
2020-11-04 3:03 ` Viresh Kumar
2020-11-05 19:24 ` Rob Clark
2020-11-05 19:24 ` Rob Clark
2020-11-06 7:16 ` Viresh Kumar
2020-11-06 7:16 ` Viresh Kumar
2020-11-17 10:03 ` Viresh Kumar
2020-11-17 10:03 ` Viresh Kumar
2020-11-17 17:02 ` Rob Clark
2020-11-17 17:02 ` Rob Clark
2020-11-18 5:28 ` Viresh Kumar
2020-11-18 5:28 ` Viresh Kumar
2020-11-18 16:53 ` Rob Clark
2020-11-18 16:53 ` Rob Clark
2020-11-19 6:05 ` Viresh Kumar
2020-11-19 6:05 ` Viresh Kumar
2020-12-07 6:16 ` Viresh Kumar
2020-12-07 6:16 ` Viresh Kumar
2020-12-16 5:22 ` Viresh Kumar
2020-12-16 5:22 ` Viresh Kumar
2020-10-12 2:09 ` [PATCH v2 08/22] drm/msm/gem: Switch over to obj->resv for locking Rob Clark
2020-10-12 2:09 ` Rob Clark
2020-10-12 2:09 ` [PATCH v2 09/22] drm/msm: Use correct drm_gem_object_put() in fail case Rob Clark
2020-10-12 2:09 ` Rob Clark
2020-10-12 2:09 ` [PATCH v2 10/22] drm/msm: Drop chatty trace Rob Clark
2020-10-12 2:09 ` Rob Clark
2020-10-12 2:09 ` [PATCH v2 11/22] drm/msm: Move update_fences() Rob Clark
2020-10-12 2:09 ` Rob Clark
2020-10-12 2:09 ` [PATCH v2 12/22] drm/msm: Add priv->mm_lock to protect active/inactive lists Rob Clark
2020-10-12 2:09 ` Rob Clark
2020-10-12 2:09 ` [PATCH v2 13/22] drm/msm: Document and rename preempt_lock Rob Clark
2020-10-12 2:09 ` Rob Clark
2020-10-12 2:09 ` [PATCH v2 14/22] drm/msm: Protect ring->submits with it's own lock Rob Clark
2020-10-12 2:09 ` Rob Clark
2020-10-12 2:09 ` [PATCH v2 15/22] drm/msm: Refcount submits Rob Clark
2020-10-12 2:09 ` Rob Clark
2020-10-12 2:09 ` Rob Clark [this message]
2020-10-12 2:09 ` [PATCH v2 16/22] drm/msm: Remove obj->gpu Rob Clark
2020-10-12 2:09 ` [PATCH v2 17/22] drm/msm: Drop struct_mutex from the retire path Rob Clark
2020-10-12 2:09 ` Rob Clark
2020-10-12 2:09 ` [PATCH v2 18/22] drm/msm: Drop struct_mutex in free_object() path Rob Clark
2020-10-12 2:09 ` Rob Clark
2020-10-12 2:09 ` [PATCH v2 19/22] drm/msm: remove msm_gem_free_work Rob Clark
2020-10-12 2:09 ` Rob Clark
2020-10-12 2:09 ` [PATCH v2 20/22] drm/msm: drop struct_mutex in madvise path Rob Clark
2020-10-12 2:09 ` Rob Clark
2020-10-12 2:09 ` [PATCH v2 21/22] drm/msm: Drop struct_mutex in shrinker path Rob Clark
2020-10-12 2:09 ` Rob Clark
2020-10-12 2:09 ` [PATCH v2 22/22] drm/msm: Don't implicit-sync if only a single ring Rob Clark
2020-10-12 2:09 ` Rob Clark
2020-10-12 14:40 ` Daniel Vetter
2020-10-12 14:40 ` Daniel Vetter
2020-10-12 15:07 ` Rob Clark
2020-10-12 15:07 ` Rob Clark
2020-10-13 11:08 ` Daniel Vetter
2020-10-13 11:08 ` Daniel Vetter
2020-10-13 16:15 ` [Freedreno] " Rob Clark
2020-10-13 16:15 ` Rob Clark
2020-10-15 8:22 ` Daniel Vetter
2020-10-15 8:22 ` Daniel Vetter
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