Apart from that can't see anything obvious wrong, but I certainly need to
take a closer look.
Christian.
}
spin_unlock(&syncobj->lock);
}
@@ -856,6 +859,7 @@ struct syncobj_wait_entry {
struct dma_fence *fence;
struct dma_fence_cb fence_cb;
struct drm_syncobj_cb syncobj_cb;
+ u64 point;
};
static void syncobj_wait_fence_func(struct dma_fence *fence, @@
-873,12 +877,13 @@ static void syncobj_wait_syncobj_func(struct
drm_syncobj *syncobj,
struct syncobj_wait_entry *wait =
container_of(cb, struct syncobj_wait_entry, syncobj_cb);
- drm_syncobj_search_fence(syncobj, 0, 0, &wait->fence);
+ drm_syncobj_search_fence(syncobj, wait->point, 0, &wait->fence);
wake_up_process(wait->task);
}
static signed long drm_syncobj_array_wait_timeout(struct drm_syncobj
**syncobjs,
+ void __user *user_points,
uint32_t count,
uint32_t flags,
signed long timeout,
@@ -886,13 +891,27 @@ static signed long
drm_syncobj_array_wait_timeout(struct drm_syncobj **syncobjs,
{
struct syncobj_wait_entry *entries;
struct dma_fence *fence;
+ uint64_t *points;
signed long ret;
uint32_t signaled_count, i;
- entries = kcalloc(count, sizeof(*entries), GFP_KERNEL);
- if (!entries)
+ points = kmalloc_array(count, sizeof(*points), GFP_KERNEL);
+ if (points == NULL)
return -ENOMEM;
+ if (!user_points) {
+ memset(points, 0, count * sizeof(uint64_t));
+ } else if (copy_from_user(points, user_points, sizeof(uint64_t) *
count)) {
+ ret = -EFAULT;
+ goto err_free_points;
+ }
+
+
+ entries = kcalloc(count, sizeof(*entries), GFP_KERNEL);
+ if (!entries) {
+ ret = -ENOMEM;
+ goto err_free_points;
+ }
/* Walk the list of sync objects and initialize entries. We do
* this up-front so that we can properly return -EINVAL if there is
* a syncobj with a missing fence and then never have the chance of
@@ -901,7 +920,8 @@ static signed long
drm_syncobj_array_wait_timeout(struct drm_syncobj **syncobjs,
signaled_count = 0;
for (i = 0; i < count; ++i) {
entries[i].task = current;
- ret = drm_syncobj_search_fence(syncobjs[i], 0, 0,
+ entries[i].point = points[i];
+ ret = drm_syncobj_search_fence(syncobjs[i], points[i], 0,
&entries[i].fence);
if (!entries[i].fence) {
if (flags &
DRM_SYNCOBJ_WAIT_FLAGS_WAIT_FOR_SUBMIT) { @@ -940,6
+960,7 @@ static signed long drm_syncobj_array_wait_timeout(struct
drm_syncobj **syncobjs,
if (flags & DRM_SYNCOBJ_WAIT_FLAGS_WAIT_FOR_SUBMIT) {
for (i = 0; i < count; ++i) {
drm_syncobj_fence_get_or_add_callback(syncobjs[i],
+ entries[i].point,
&entries[i].fence,
&entries[i].syncobj_cb,
syncobj_wait_syncobj_func); @@ -1003,6 +1024,9 @@
static signed long drm_syncobj_array_wait_timeout(struct drm_syncobj
**syncobjs,
}
kfree(entries);
+err_free_points:
+ kfree(points);
+
return ret;
}
@@ -1041,20 +1065,33 @@ static signed long
drm_timeout_abs_to_jiffies(int64_t timeout_nsec)
static int drm_syncobj_array_wait(struct drm_device *dev,
struct drm_file *file_private,
struct drm_syncobj_wait *wait,
- struct drm_syncobj **syncobjs)
+ struct drm_syncobj_timeline_wait
*timeline_wait,
+ struct drm_syncobj **syncobjs, bool
timeline)
{
- signed long timeout = drm_timeout_abs_to_jiffies(wait-
timeout_nsec);
+ signed long timeout = 0;
signed long ret = 0;
uint32_t first = ~0;
- ret = drm_syncobj_array_wait_timeout(syncobjs,
- wait->count_handles,
- wait->flags,
- timeout, &first);
+ if (!timeline) {
+ timeout = drm_timeout_abs_to_jiffies(wait->timeout_nsec);
+ ret = drm_syncobj_array_wait_timeout(syncobjs,
+ NULL,
+ wait->count_handles,
+ wait->flags,
+ timeout, &first);
+ wait->first_signaled = first;
+ } else {
+ timeout = drm_timeout_abs_to_jiffies(timeline_wait-
timeout_nsec);
+ ret = drm_syncobj_array_wait_timeout(syncobjs,
+
u64_to_user_ptr(timeline_wait->points),
+ timeline_wait-
count_handles,
+ timeline_wait->flags,
+ timeout, &first);
+ timeline_wait->first_signaled = first;
+ }
if (ret < 0)
return ret;
- wait->first_signaled = first;
if (ret == 0)
return -ETIME;
return 0;
@@ -1142,13 +1179,47 @@ drm_syncobj_wait_ioctl(struct drm_device
*dev, void *data,
return ret;
ret = drm_syncobj_array_wait(dev, file_private,
- args, syncobjs);
+ args, NULL, syncobjs, false);
drm_syncobj_array_free(syncobjs, args->count_handles);
return ret;
}
+int
+drm_syncobj_timeline_wait_ioctl(struct drm_device *dev, void *data,
+ struct drm_file *file_private)
+{
+ struct drm_syncobj_timeline_wait *args = data;
+ struct drm_syncobj **syncobjs;
+ int ret = 0;
+
+ if (!drm_core_check_feature(dev, DRIVER_SYNCOBJ))
+ return -ENODEV;
+
+ if (args->flags & ~(DRM_SYNCOBJ_WAIT_FLAGS_WAIT_ALL |
+
DRM_SYNCOBJ_WAIT_FLAGS_WAIT_FOR_SUBMIT))
+ return -EINVAL;
+
+ if (args->count_handles == 0)
+ return -EINVAL;
+
+ ret = drm_syncobj_array_find(file_private,
+ u64_to_user_ptr(args->handles),
+ args->count_handles,
+ &syncobjs);
+ if (ret < 0)
+ return ret;
+
+ ret = drm_syncobj_array_wait(dev, file_private,
+ NULL, args, syncobjs, true);
+
+ drm_syncobj_array_free(syncobjs, args->count_handles);
+
+ return ret;
+}
+
+
int
drm_syncobj_reset_ioctl(struct drm_device *dev, void *data,
struct drm_file *file_private)
diff --git a/include/uapi/drm/drm.h b/include/uapi/drm/drm.h index
cebdb2541eb7..501e86d81f47 100644
--- a/include/uapi/drm/drm.h
+++ b/include/uapi/drm/drm.h
@@ -748,6 +748,19 @@ struct drm_syncobj_wait {
__u32 pad;
};
+struct drm_syncobj_timeline_wait {
+ __u64 handles;
+ /* wait on specific timeline point for every handles*/
+ __u64 points;
+ /* absolute timeout */
+ __s64 timeout_nsec;
+ __u32 count_handles;
+ __u32 flags;
+ __u32 first_signaled; /* only valid when not waiting all */
+ __u32 pad;
+};
+
+
struct drm_syncobj_array {
__u64 handles;
__u32 count_handles;
@@ -910,6 +923,7 @@ extern "C" {
#define DRM_IOCTL_MODE_GET_LEASE DRM_IOWR(0xC8, struct
drm_mode_get_lease)
#define DRM_IOCTL_MODE_REVOKE_LEASE DRM_IOWR(0xC9,
struct drm_mode_revoke_lease)
+#define DRM_IOCTL_SYNCOBJ_TIMELINE_WAIT DRM_IOWR(0xCA,
struct drm_syncobj_timeline_wait)
/**
* Device specific ioctls should only be in their respective headers
* The device specific ioctl range is from 0x40 to 0x9f.
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