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From: Rob Clark <robdclark@gmail.com>
To: dri-devel@lists.freedesktop.org
Cc: linux-arm-msm@vger.kernel.org, linux-kernel@vger.kernel.org,
	freedreno@lists.freedesktop.org
Subject: [PATCH 5/6] drm/msm: preserve IOVAs in submit's bo table
Date: Tue, 24 Oct 2017 09:22:52 -0400	[thread overview]
Message-ID: <20171024132256.20286-6-robdclark@gmail.com> (raw)
In-Reply-To: <20171024132256.20286-1-robdclark@gmail.com>

We need this if we want to dump the submit after cleanup (ie. from hang
or fault).  But in the backoff/unpin case we want to clear them.  So add
a flag so we can skip clearing the IOVAs in at cleanup.

Signed-off-by: Rob Clark <robdclark@gmail.com>
---
 drivers/gpu/drm/msm/msm_gem_submit.c | 11 ++++++-----
 1 file changed, 6 insertions(+), 5 deletions(-)

diff --git a/drivers/gpu/drm/msm/msm_gem_submit.c b/drivers/gpu/drm/msm/msm_gem_submit.c
index 69868682f8f4..b8dc8f96caf2 100644
--- a/drivers/gpu/drm/msm/msm_gem_submit.c
+++ b/drivers/gpu/drm/msm/msm_gem_submit.c
@@ -161,7 +161,8 @@ static int submit_lookup_objects(struct msm_gem_submit *submit,
 	return ret;
 }
 
-static void submit_unlock_unpin_bo(struct msm_gem_submit *submit, int i)
+static void submit_unlock_unpin_bo(struct msm_gem_submit *submit,
+		int i, bool backoff)
 {
 	struct msm_gem_object *msm_obj = submit->bos[i].obj;
 
@@ -171,7 +172,7 @@ static void submit_unlock_unpin_bo(struct msm_gem_submit *submit, int i)
 	if (submit->bos[i].flags & BO_LOCKED)
 		ww_mutex_unlock(&msm_obj->resv->lock);
 
-	if (!(submit->bos[i].flags & BO_VALID))
+	if (backoff && !(submit->bos[i].flags & BO_VALID))
 		submit->bos[i].iova = 0;
 
 	submit->bos[i].flags &= ~(BO_LOCKED | BO_PINNED);
@@ -206,10 +207,10 @@ static int submit_lock_objects(struct msm_gem_submit *submit)
 
 fail:
 	for (; i >= 0; i--)
-		submit_unlock_unpin_bo(submit, i);
+		submit_unlock_unpin_bo(submit, i, true);
 
 	if (slow_locked > 0)
-		submit_unlock_unpin_bo(submit, slow_locked);
+		submit_unlock_unpin_bo(submit, slow_locked, true);
 
 	if (ret == -EDEADLK) {
 		struct msm_gem_object *msm_obj = submit->bos[contended].obj;
@@ -393,7 +394,7 @@ static void submit_cleanup(struct msm_gem_submit *submit)
 
 	for (i = 0; i < submit->nr_bos; i++) {
 		struct msm_gem_object *msm_obj = submit->bos[i].obj;
-		submit_unlock_unpin_bo(submit, i);
+		submit_unlock_unpin_bo(submit, i, false);
 		list_del_init(&msm_obj->submit_entry);
 		drm_gem_object_unreference(&msm_obj->base);
 	}
-- 
2.13.6

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WARNING: multiple messages have this Message-ID (diff)
From: Rob Clark <robdclark@gmail.com>
To: dri-devel@lists.freedesktop.org
Cc: linux-arm-msm@vger.kernel.org, freedreno@lists.freedesktop.org,
	Jordan Crouse <jcrouse@codeaurora.org>,
	Rob Clark <robdclark@gmail.com>, David Airlie <airlied@linux.ie>,
	linux-kernel@vger.kernel.org
Subject: [PATCH 5/6] drm/msm: preserve IOVAs in submit's bo table
Date: Tue, 24 Oct 2017 09:22:52 -0400	[thread overview]
Message-ID: <20171024132256.20286-6-robdclark@gmail.com> (raw)
In-Reply-To: <20171024132256.20286-1-robdclark@gmail.com>

We need this if we want to dump the submit after cleanup (ie. from hang
or fault).  But in the backoff/unpin case we want to clear them.  So add
a flag so we can skip clearing the IOVAs in at cleanup.

Signed-off-by: Rob Clark <robdclark@gmail.com>
---
 drivers/gpu/drm/msm/msm_gem_submit.c | 11 ++++++-----
 1 file changed, 6 insertions(+), 5 deletions(-)

diff --git a/drivers/gpu/drm/msm/msm_gem_submit.c b/drivers/gpu/drm/msm/msm_gem_submit.c
index 69868682f8f4..b8dc8f96caf2 100644
--- a/drivers/gpu/drm/msm/msm_gem_submit.c
+++ b/drivers/gpu/drm/msm/msm_gem_submit.c
@@ -161,7 +161,8 @@ static int submit_lookup_objects(struct msm_gem_submit *submit,
 	return ret;
 }
 
-static void submit_unlock_unpin_bo(struct msm_gem_submit *submit, int i)
+static void submit_unlock_unpin_bo(struct msm_gem_submit *submit,
+		int i, bool backoff)
 {
 	struct msm_gem_object *msm_obj = submit->bos[i].obj;
 
@@ -171,7 +172,7 @@ static void submit_unlock_unpin_bo(struct msm_gem_submit *submit, int i)
 	if (submit->bos[i].flags & BO_LOCKED)
 		ww_mutex_unlock(&msm_obj->resv->lock);
 
-	if (!(submit->bos[i].flags & BO_VALID))
+	if (backoff && !(submit->bos[i].flags & BO_VALID))
 		submit->bos[i].iova = 0;
 
 	submit->bos[i].flags &= ~(BO_LOCKED | BO_PINNED);
@@ -206,10 +207,10 @@ static int submit_lock_objects(struct msm_gem_submit *submit)
 
 fail:
 	for (; i >= 0; i--)
-		submit_unlock_unpin_bo(submit, i);
+		submit_unlock_unpin_bo(submit, i, true);
 
 	if (slow_locked > 0)
-		submit_unlock_unpin_bo(submit, slow_locked);
+		submit_unlock_unpin_bo(submit, slow_locked, true);
 
 	if (ret == -EDEADLK) {
 		struct msm_gem_object *msm_obj = submit->bos[contended].obj;
@@ -393,7 +394,7 @@ static void submit_cleanup(struct msm_gem_submit *submit)
 
 	for (i = 0; i < submit->nr_bos; i++) {
 		struct msm_gem_object *msm_obj = submit->bos[i].obj;
-		submit_unlock_unpin_bo(submit, i);
+		submit_unlock_unpin_bo(submit, i, false);
 		list_del_init(&msm_obj->submit_entry);
 		drm_gem_object_unreference(&msm_obj->base);
 	}
-- 
2.13.6

  reply	other threads:[~2017-10-24 13:22 UTC|newest]

Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-10-24 13:22 [PATCH 0/6] drm/msm: GPU debugging enhancements Rob Clark
2017-10-24 13:22 ` Rob Clark [this message]
2017-10-24 13:22   ` [PATCH 5/6] drm/msm: preserve IOVAs in submit's bo table Rob Clark
     [not found] ` <20171024132256.20286-1-robdclark-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
2017-10-24 13:22   ` [PATCH 1/6] drm/msm: show task cmdline in gpu recovery messages Rob Clark
2017-10-24 13:22     ` Rob Clark
2017-10-24 13:22   ` [PATCH 2/6] drm/msm: add special _get_vaddr_active() for cmdstream dumps Rob Clark
2017-10-24 13:22     ` Rob Clark
2017-10-24 13:22   ` [PATCH 3/6] drm/msm: split rd debugfs file Rob Clark
2017-10-24 13:22     ` Rob Clark
2017-10-24 13:22   ` [PATCH 4/6] drm/msm/rd: allow adding addition msg to top of dump Rob Clark
2017-10-24 13:22     ` Rob Clark
2017-10-24 13:22   ` [PATCH 6/6] drm/msm: dump submits which triggered gpu hang Rob Clark
2017-10-24 13:22     ` Rob Clark

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