From: Chris Wilson <chris@chris-wilson.co.uk>
To: intel-gfx@lists.freedesktop.org
Subject: [PATCH 10/14] drm/i915: Take the handle idr spinlock once for looking up the exec objects
Date: Mon, 3 Dec 2012 11:49:08 +0000 [thread overview]
Message-ID: <1354535352-3506-11-git-send-email-chris@chris-wilson.co.uk> (raw)
In-Reply-To: <1354535352-3506-1-git-send-email-chris@chris-wilson.co.uk>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
---
drivers/gpu/drm/i915/i915_gem_execbuffer.c | 86 +++++++++++++++-------------
1 file changed, 46 insertions(+), 40 deletions(-)
diff --git a/drivers/gpu/drm/i915/i915_gem_execbuffer.c b/drivers/gpu/drm/i915/i915_gem_execbuffer.c
index 1e53828..75792f6 100644
--- a/drivers/gpu/drm/i915/i915_gem_execbuffer.c
+++ b/drivers/gpu/drm/i915/i915_gem_execbuffer.c
@@ -72,6 +72,46 @@ eb_add_object(struct eb_objects *eb, struct drm_i915_gem_object *obj)
&eb->buckets[obj->exec_handle & eb->and]);
}
+static int
+eb_lookup_objects(struct eb_objects *eb,
+ struct drm_i915_gem_exec_object2 *exec,
+ int count,
+ struct drm_file *file,
+ struct list_head *objects)
+{
+ int i;
+
+ spin_lock(&file->table_lock);
+ for (i = 0; i < count; i++) {
+ struct drm_i915_gem_object *obj;
+
+ obj = to_intel_bo(idr_find(&file->object_idr, exec[i].handle));
+ if (obj == NULL) {
+ spin_unlock(&file->table_lock);
+ DRM_DEBUG("Invalid object handle %d at index %d\n",
+ exec[i].handle, i);
+ return -ENOENT;
+ }
+
+ if (!list_empty(&obj->exec_list)) {
+ spin_unlock(&file->table_lock);
+ DRM_DEBUG("Object %p [handle %d, index %d] appears more than once in object list\n",
+ obj, exec[i].handle, i);
+ return -EINVAL;
+ }
+
+ drm_gem_object_reference(&obj->base);
+ list_add_tail(&obj->exec_list, objects);
+
+ obj->exec_handle = exec[i].handle;
+ obj->exec_entry = &exec[i];
+ eb_add_object(eb, obj);
+ }
+ spin_unlock(&file->table_lock);
+
+ return 0;
+}
+
static struct drm_i915_gem_object *
eb_get_object(struct eb_objects *eb, unsigned long handle)
{
@@ -559,21 +599,9 @@ i915_gem_execbuffer_relocate_slow(struct drm_device *dev,
/* reacquire the objects */
eb_reset(eb);
- for (i = 0; i < count; i++) {
- obj = to_intel_bo(drm_gem_object_lookup(dev, file,
- exec[i].handle));
- if (&obj->base == NULL) {
- DRM_DEBUG("Invalid object handle %d at index %d\n",
- exec[i].handle, i);
- ret = -ENOENT;
- goto err;
- }
-
- list_add_tail(&obj->exec_list, objects);
- obj->exec_handle = exec[i].handle;
- obj->exec_entry = &exec[i];
- eb_add_object(eb, obj);
- }
+ ret = eb_lookup_objects(eb, exec, count, file, objects);
+ if (ret)
+ goto err;
ret = i915_gem_execbuffer_reserve(ring, file, objects);
if (ret)
@@ -885,31 +913,9 @@ i915_gem_do_execbuffer(struct drm_device *dev, void *data,
/* Look up object handles */
INIT_LIST_HEAD(&objects);
- for (i = 0; i < args->buffer_count; i++) {
- struct drm_i915_gem_object *obj;
-
- obj = to_intel_bo(drm_gem_object_lookup(dev, file,
- exec[i].handle));
- if (&obj->base == NULL) {
- DRM_DEBUG("Invalid object handle %d at index %d\n",
- exec[i].handle, i);
- /* prevent error path from reading uninitialized data */
- ret = -ENOENT;
- goto err;
- }
-
- if (!list_empty(&obj->exec_list)) {
- DRM_DEBUG("Object %p [handle %d, index %d] appears more than once in object list\n",
- obj, exec[i].handle, i);
- ret = -EINVAL;
- goto err;
- }
-
- list_add_tail(&obj->exec_list, &objects);
- obj->exec_handle = exec[i].handle;
- obj->exec_entry = &exec[i];
- eb_add_object(eb, obj);
- }
+ ret = eb_lookup_objects(eb, exec, args->buffer_count, file, &objects);
+ if (ret)
+ goto err;
/* take note of the batch buffer before we might reorder the lists */
batch_obj = list_entry(objects.prev,
--
1.7.10.4
next prev parent reply other threads:[~2012-12-03 11:50 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-12-03 11:48 A bunch of random execbuffer patches Chris Wilson
2012-12-03 11:48 ` [PATCH 01/14] drm/i915: Move the get_pages assertions up to the right layer Chris Wilson
2012-12-03 11:49 ` [PATCH 02/14] drm/i915: Decouple the object from the unbound list before freeing pages Chris Wilson
2012-12-03 16:16 ` Daniel Vetter
2012-12-03 11:49 ` [PATCH 03/14] drm/i915: Bail if we attempt to allocate pages for a purged object Chris Wilson
2012-12-03 11:49 ` [PATCH 04/14] drm/i915: Defer the unbind for a fence change until the next get_fence() Chris Wilson
2012-12-03 11:49 ` [PATCH 05/14] drm/i915: Avoid forcing relocations through the mappable GTT or CPU Chris Wilson
2012-12-03 11:49 ` [PATCH 06/14] drm: Optionally create mm blocks from top-to-bottom Chris Wilson
2012-12-03 11:49 ` [PATCH 07/14] drm/i915: Preferentially allocate mappable GTT space to uncached bo Chris Wilson
2012-12-03 11:49 ` [PATCH 08/14] drm/i915: Tighten the checks for invalid relocation domains Chris Wilson
2012-12-03 11:49 ` [PATCH 09/14] drm/i915: Remove check for conflicting relocation write-domains Chris Wilson
2012-12-03 19:18 ` Daniel Vetter
2012-12-03 21:03 ` [PATCH] drm/i915: Reduce memory pressure during shrinker by preallocating swizzle pages Chris Wilson
2012-12-07 0:16 ` Daniel Vetter
2012-12-03 11:49 ` Chris Wilson [this message]
2012-12-03 11:49 ` [PATCH 11/14] drm/i915: Move the execbuffer objects list from the stack into the tracker Chris Wilson
2012-12-03 11:49 ` [PATCH 12/14] drm/i915: Allow userspace to hint that the relocations were known Chris Wilson
2012-12-03 11:49 ` [PATCH 13/14] drm/i915: Use the reloc.handle as an index into the execbuffer array Chris Wilson
2012-12-03 11:49 ` [PATCH 14/14] drm/i915: Allow userspace to request an object at a specific offset Chris Wilson
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=1354535352-3506-11-git-send-email-chris@chris-wilson.co.uk \
--to=chris@chris-wilson.co.uk \
--cc=intel-gfx@lists.freedesktop.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 a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).