staging/android: rename sync_fence to sync_file
sync_file has a more close meaning to what a sync_fence really, a struct that represent a file that can be used by userspace to get information on a fence, or wait for it to be signaled. Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk> Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Gustavo Padovan
Greg Kroah-Hartman
Родитель
a44eb74cd4
Коммит
d7fdb0ae9d
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@ -32,7 +32,7 @@
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#include "trace/sync.h"
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static const struct fence_ops android_fence_ops;
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static const struct file_operations sync_fence_fops;
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static const struct file_operations sync_file_fops;
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struct sync_timeline *sync_timeline_create(const struct sync_timeline_ops *ops,
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int size, const char *name)
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@ -147,80 +147,81 @@ void sync_pt_free(struct sync_pt *pt)
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}
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EXPORT_SYMBOL(sync_pt_free);
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static struct sync_fence *sync_fence_alloc(int size, const char *name)
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static struct sync_file *sync_file_alloc(int size, const char *name)
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{
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struct sync_fence *fence;
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struct sync_file *sync_file;
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fence = kzalloc(size, GFP_KERNEL);
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if (!fence)
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sync_file = kzalloc(size, GFP_KERNEL);
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if (!sync_file)
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return NULL;
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fence->file = anon_inode_getfile("sync_fence", &sync_fence_fops,
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fence, 0);
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if (IS_ERR(fence->file))
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sync_file->file = anon_inode_getfile("sync_file", &sync_file_fops,
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sync_file, 0);
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if (IS_ERR(sync_file->file))
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goto err;
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kref_init(&fence->kref);
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strlcpy(fence->name, name, sizeof(fence->name));
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kref_init(&sync_file->kref);
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strlcpy(sync_file->name, name, sizeof(sync_file->name));
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init_waitqueue_head(&fence->wq);
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init_waitqueue_head(&sync_file->wq);
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return fence;
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return sync_file;
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err:
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kfree(fence);
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kfree(sync_file);
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return NULL;
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}
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static void fence_check_cb_func(struct fence *f, struct fence_cb *cb)
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{
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struct sync_fence_cb *check;
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struct sync_fence *fence;
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struct sync_file_cb *check;
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struct sync_file *sync_file;
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check = container_of(cb, struct sync_fence_cb, cb);
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fence = check->fence;
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check = container_of(cb, struct sync_file_cb, cb);
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sync_file = check->sync_file;
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if (atomic_dec_and_test(&fence->status))
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wake_up_all(&fence->wq);
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if (atomic_dec_and_test(&sync_file->status))
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wake_up_all(&sync_file->wq);
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}
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/* TODO: implement a create which takes more that one sync_pt */
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struct sync_fence *sync_fence_create_dma(const char *name, struct fence *pt)
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struct sync_file *sync_file_create_dma(const char *name, struct fence *pt)
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{
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struct sync_fence *fence;
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struct sync_file *sync_file;
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fence = sync_fence_alloc(offsetof(struct sync_fence, cbs[1]), name);
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if (!fence)
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sync_file = sync_file_alloc(offsetof(struct sync_file, cbs[1]),
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name);
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if (!sync_file)
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return NULL;
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fence->num_fences = 1;
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atomic_set(&fence->status, 1);
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sync_file->num_fences = 1;
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atomic_set(&sync_file->status, 1);
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fence->cbs[0].sync_pt = pt;
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fence->cbs[0].fence = fence;
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if (fence_add_callback(pt, &fence->cbs[0].cb, fence_check_cb_func))
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atomic_dec(&fence->status);
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sync_file->cbs[0].sync_pt = pt;
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sync_file->cbs[0].sync_file = sync_file;
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if (fence_add_callback(pt, &sync_file->cbs[0].cb, fence_check_cb_func))
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atomic_dec(&sync_file->status);
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sync_fence_debug_add(fence);
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sync_file_debug_add(sync_file);
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return fence;
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return sync_file;
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}
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EXPORT_SYMBOL(sync_fence_create_dma);
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EXPORT_SYMBOL(sync_file_create_dma);
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struct sync_fence *sync_fence_create(const char *name, struct sync_pt *pt)
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struct sync_file *sync_file_create(const char *name, struct sync_pt *pt)
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{
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return sync_fence_create_dma(name, &pt->base);
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return sync_file_create_dma(name, &pt->base);
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}
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EXPORT_SYMBOL(sync_fence_create);
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EXPORT_SYMBOL(sync_file_create);
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struct sync_fence *sync_fence_fdget(int fd)
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struct sync_file *sync_file_fdget(int fd)
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{
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struct file *file = fget(fd);
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if (!file)
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return NULL;
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if (file->f_op != &sync_fence_fops)
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if (file->f_op != &sync_file_fops)
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goto err;
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return file->private_data;
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@ -229,70 +230,71 @@ err:
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fput(file);
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return NULL;
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}
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EXPORT_SYMBOL(sync_fence_fdget);
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EXPORT_SYMBOL(sync_file_fdget);
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void sync_fence_put(struct sync_fence *fence)
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void sync_file_put(struct sync_file *sync_file)
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{
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fput(fence->file);
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fput(sync_file->file);
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}
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EXPORT_SYMBOL(sync_fence_put);
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EXPORT_SYMBOL(sync_file_put);
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void sync_fence_install(struct sync_fence *fence, int fd)
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void sync_file_install(struct sync_file *sync_file, int fd)
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{
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fd_install(fd, fence->file);
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fd_install(fd, sync_file->file);
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}
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EXPORT_SYMBOL(sync_fence_install);
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EXPORT_SYMBOL(sync_file_install);
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static void sync_fence_add_pt(struct sync_fence *fence,
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int *i, struct fence *pt)
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static void sync_file_add_pt(struct sync_file *sync_file, int *i,
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struct fence *pt)
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{
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fence->cbs[*i].sync_pt = pt;
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fence->cbs[*i].fence = fence;
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sync_file->cbs[*i].sync_pt = pt;
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sync_file->cbs[*i].sync_file = sync_file;
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if (!fence_add_callback(pt, &fence->cbs[*i].cb, fence_check_cb_func)) {
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if (!fence_add_callback(pt, &sync_file->cbs[*i].cb,
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fence_check_cb_func)) {
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fence_get(pt);
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(*i)++;
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}
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}
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struct sync_fence *sync_fence_merge(const char *name,
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struct sync_fence *a, struct sync_fence *b)
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struct sync_file *sync_file_merge(const char *name,
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struct sync_file *a, struct sync_file *b)
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{
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int num_fences = a->num_fences + b->num_fences;
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struct sync_fence *fence;
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struct sync_file *sync_file;
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int i, i_a, i_b;
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unsigned long size = offsetof(struct sync_fence, cbs[num_fences]);
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unsigned long size = offsetof(struct sync_file, cbs[num_fences]);
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fence = sync_fence_alloc(size, name);
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if (!fence)
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sync_file = sync_file_alloc(size, name);
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if (!sync_file)
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return NULL;
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atomic_set(&fence->status, num_fences);
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atomic_set(&sync_file->status, num_fences);
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/*
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* Assume sync_fence a and b are both ordered and have no
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* Assume sync_file a and b are both ordered and have no
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* duplicates with the same context.
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*
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* If a sync_fence can only be created with sync_fence_merge
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* and sync_fence_create, this is a reasonable assumption.
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* If a sync_file can only be created with sync_file_merge
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* and sync_file_create, this is a reasonable assumption.
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*/
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for (i = i_a = i_b = 0; i_a < a->num_fences && i_b < b->num_fences; ) {
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struct fence *pt_a = a->cbs[i_a].sync_pt;
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struct fence *pt_b = b->cbs[i_b].sync_pt;
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if (pt_a->context < pt_b->context) {
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sync_fence_add_pt(fence, &i, pt_a);
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sync_file_add_pt(sync_file, &i, pt_a);
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i_a++;
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} else if (pt_a->context > pt_b->context) {
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sync_fence_add_pt(fence, &i, pt_b);
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sync_file_add_pt(sync_file, &i, pt_b);
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i_b++;
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} else {
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if (pt_a->seqno - pt_b->seqno <= INT_MAX)
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sync_fence_add_pt(fence, &i, pt_a);
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sync_file_add_pt(sync_file, &i, pt_a);
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else
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sync_fence_add_pt(fence, &i, pt_b);
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sync_file_add_pt(sync_file, &i, pt_b);
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i_a++;
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i_b++;
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@ -300,21 +302,21 @@ struct sync_fence *sync_fence_merge(const char *name,
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}
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for (; i_a < a->num_fences; i_a++)
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sync_fence_add_pt(fence, &i, a->cbs[i_a].sync_pt);
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sync_file_add_pt(sync_file, &i, a->cbs[i_a].sync_pt);
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for (; i_b < b->num_fences; i_b++)
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sync_fence_add_pt(fence, &i, b->cbs[i_b].sync_pt);
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sync_file_add_pt(sync_file, &i, b->cbs[i_b].sync_pt);
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if (num_fences > i)
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atomic_sub(num_fences - i, &fence->status);
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fence->num_fences = i;
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atomic_sub(num_fences - i, &sync_file->status);
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sync_file->num_fences = i;
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sync_fence_debug_add(fence);
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return fence;
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sync_file_debug_add(sync_file);
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return sync_file;
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}
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EXPORT_SYMBOL(sync_fence_merge);
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EXPORT_SYMBOL(sync_file_merge);
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int sync_fence_wait(struct sync_fence *fence, long timeout)
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int sync_file_wait(struct sync_file *sync_file, long timeout)
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{
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long ret;
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int i;
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@ -324,33 +326,33 @@ int sync_fence_wait(struct sync_fence *fence, long timeout)
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else
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timeout = msecs_to_jiffies(timeout);
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trace_sync_wait(fence, 1);
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for (i = 0; i < fence->num_fences; ++i)
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trace_sync_pt(fence->cbs[i].sync_pt);
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ret = wait_event_interruptible_timeout(fence->wq,
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atomic_read(&fence->status) <= 0,
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trace_sync_wait(sync_file, 1);
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for (i = 0; i < sync_file->num_fences; ++i)
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trace_sync_pt(sync_file->cbs[i].sync_pt);
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ret = wait_event_interruptible_timeout(sync_file->wq,
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atomic_read(&sync_file->status) <= 0,
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timeout);
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trace_sync_wait(fence, 0);
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trace_sync_wait(sync_file, 0);
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if (ret < 0) {
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return ret;
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} else if (ret == 0) {
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if (timeout) {
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pr_info("fence timeout on [%p] after %dms\n", fence,
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jiffies_to_msecs(timeout));
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pr_info("sync_file timeout on [%p] after %dms\n",
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sync_file, jiffies_to_msecs(timeout));
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sync_dump();
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}
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return -ETIME;
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}
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ret = atomic_read(&fence->status);
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ret = atomic_read(&sync_file->status);
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if (ret) {
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pr_info("fence error %ld on [%p]\n", ret, fence);
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pr_info("sync_file error %ld on [%p]\n", ret, sync_file);
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sync_dump();
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}
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return ret;
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}
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EXPORT_SYMBOL(sync_fence_wait);
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EXPORT_SYMBOL(sync_file_wait);
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static const char *android_fence_get_driver_name(struct fence *fence)
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{
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@ -459,37 +461,39 @@ static const struct fence_ops android_fence_ops = {
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.timeline_value_str = android_fence_timeline_value_str,
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};
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static void sync_fence_free(struct kref *kref)
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static void sync_file_free(struct kref *kref)
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{
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struct sync_fence *fence = container_of(kref, struct sync_fence, kref);
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struct sync_file *sync_file = container_of(kref, struct sync_file,
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kref);
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int i;
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for (i = 0; i < fence->num_fences; ++i) {
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fence_remove_callback(fence->cbs[i].sync_pt, &fence->cbs[i].cb);
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fence_put(fence->cbs[i].sync_pt);
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for (i = 0; i < sync_file->num_fences; ++i) {
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fence_remove_callback(sync_file->cbs[i].sync_pt,
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&sync_file->cbs[i].cb);
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fence_put(sync_file->cbs[i].sync_pt);
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}
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kfree(fence);
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kfree(sync_file);
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}
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static int sync_fence_release(struct inode *inode, struct file *file)
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static int sync_file_release(struct inode *inode, struct file *file)
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{
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struct sync_fence *fence = file->private_data;
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struct sync_file *sync_file = file->private_data;
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sync_fence_debug_remove(fence);
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sync_file_debug_remove(sync_file);
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kref_put(&fence->kref, sync_fence_free);
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kref_put(&sync_file->kref, sync_file_free);
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return 0;
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}
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static unsigned int sync_fence_poll(struct file *file, poll_table *wait)
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static unsigned int sync_file_poll(struct file *file, poll_table *wait)
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{
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struct sync_fence *fence = file->private_data;
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struct sync_file *sync_file = file->private_data;
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int status;
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poll_wait(file, &fence->wq, wait);
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poll_wait(file, &sync_file->wq, wait);
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status = atomic_read(&fence->status);
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status = atomic_read(&sync_file->status);
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if (!status)
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return POLLIN;
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|
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@ -498,21 +502,23 @@ static unsigned int sync_fence_poll(struct file *file, poll_table *wait)
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return 0;
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}
|
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static long sync_fence_ioctl_wait(struct sync_fence *fence, unsigned long arg)
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static long sync_file_ioctl_wait(struct sync_file *sync_file,
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unsigned long arg)
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{
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__s32 value;
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if (copy_from_user(&value, (void __user *)arg, sizeof(value)))
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return -EFAULT;
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|
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return sync_fence_wait(fence, value);
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return sync_file_wait(sync_file, value);
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}
|
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static long sync_fence_ioctl_merge(struct sync_fence *fence, unsigned long arg)
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static long sync_file_ioctl_merge(struct sync_file *sync_file,
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unsigned long arg)
|
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{
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int fd = get_unused_fd_flags(O_CLOEXEC);
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int err;
|
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struct sync_fence *fence2, *fence3;
|
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struct sync_file *fence2, *fence3;
|
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struct sync_merge_data data;
|
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|
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if (fd < 0)
|
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|
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@ -523,14 +529,14 @@ static long sync_fence_ioctl_merge(struct sync_fence *fence, unsigned long arg)
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goto err_put_fd;
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}
|
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|
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fence2 = sync_fence_fdget(data.fd2);
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fence2 = sync_file_fdget(data.fd2);
|
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if (!fence2) {
|
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err = -ENOENT;
|
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goto err_put_fd;
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}
|
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|
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data.name[sizeof(data.name) - 1] = '\0';
|
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fence3 = sync_fence_merge(data.name, fence, fence2);
|
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fence3 = sync_file_merge(data.name, sync_file, fence2);
|
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if (!fence3) {
|
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err = -ENOMEM;
|
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goto err_put_fence2;
|
||||
|
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@ -542,15 +548,15 @@ static long sync_fence_ioctl_merge(struct sync_fence *fence, unsigned long arg)
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goto err_put_fence3;
|
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}
|
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|
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sync_fence_install(fence3, fd);
|
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sync_fence_put(fence2);
|
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sync_file_install(fence3, fd);
|
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sync_file_put(fence2);
|
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return 0;
|
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|
||||
err_put_fence3:
|
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sync_fence_put(fence3);
|
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sync_file_put(fence3);
|
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|
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err_put_fence2:
|
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sync_fence_put(fence2);
|
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sync_file_put(fence2);
|
||||
|
||||
err_put_fd:
|
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put_unused_fd(fd);
|
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|
|
@ -589,10 +595,10 @@ static int sync_fill_pt_info(struct fence *fence, void *data, int size)
|
|||
return info->len;
|
||||
}
|
||||
|
||||
static long sync_fence_ioctl_fence_info(struct sync_fence *fence,
|
||||
static long sync_file_ioctl_fence_info(struct sync_file *sync_file,
|
||||
unsigned long arg)
|
||||
{
|
||||
struct sync_fence_info_data *data;
|
||||
struct sync_file_info_data *data;
|
||||
__u32 size;
|
||||
__u32 len = 0;
|
||||
int ret, i;
|
||||
|
|
@ -600,7 +606,7 @@ static long sync_fence_ioctl_fence_info(struct sync_fence *fence,
|
|||
if (copy_from_user(&size, (void __user *)arg, sizeof(size)))
|
||||
return -EFAULT;
|
||||
|
||||
if (size < sizeof(struct sync_fence_info_data))
|
||||
if (size < sizeof(struct sync_file_info_data))
|
||||
return -EINVAL;
|
||||
|
||||
if (size > 4096)
|
||||
|
|
@ -610,15 +616,15 @@ static long sync_fence_ioctl_fence_info(struct sync_fence *fence,
|
|||
if (!data)
|
||||
return -ENOMEM;
|
||||
|
||||
strlcpy(data->name, fence->name, sizeof(data->name));
|
||||
data->status = atomic_read(&fence->status);
|
||||
strlcpy(data->name, sync_file->name, sizeof(data->name));
|
||||
data->status = atomic_read(&sync_file->status);
|
||||
if (data->status >= 0)
|
||||
data->status = !data->status;
|
||||
|
||||
len = sizeof(struct sync_fence_info_data);
|
||||
len = sizeof(struct sync_file_info_data);
|
||||
|
||||
for (i = 0; i < fence->num_fences; ++i) {
|
||||
struct fence *pt = fence->cbs[i].sync_pt;
|
||||
for (i = 0; i < sync_file->num_fences; ++i) {
|
||||
struct fence *pt = sync_file->cbs[i].sync_pt;
|
||||
|
||||
ret = sync_fill_pt_info(pt, (u8 *)data + len, size - len);
|
||||
|
||||
|
|
@ -641,30 +647,30 @@ out:
|
|||
return ret;
|
||||
}
|
||||
|
||||
static long sync_fence_ioctl(struct file *file, unsigned int cmd,
|
||||
static long sync_file_ioctl(struct file *file, unsigned int cmd,
|
||||
unsigned long arg)
|
||||
{
|
||||
struct sync_fence *fence = file->private_data;
|
||||
struct sync_file *sync_file = file->private_data;
|
||||
|
||||
switch (cmd) {
|
||||
case SYNC_IOC_WAIT:
|
||||
return sync_fence_ioctl_wait(fence, arg);
|
||||
return sync_file_ioctl_wait(sync_file, arg);
|
||||
|
||||
case SYNC_IOC_MERGE:
|
||||
return sync_fence_ioctl_merge(fence, arg);
|
||||
return sync_file_ioctl_merge(sync_file, arg);
|
||||
|
||||
case SYNC_IOC_FENCE_INFO:
|
||||
return sync_fence_ioctl_fence_info(fence, arg);
|
||||
return sync_file_ioctl_fence_info(sync_file, arg);
|
||||
|
||||
default:
|
||||
return -ENOTTY;
|
||||
}
|
||||
}
|
||||
|
||||
static const struct file_operations sync_fence_fops = {
|
||||
.release = sync_fence_release,
|
||||
.poll = sync_fence_poll,
|
||||
.unlocked_ioctl = sync_fence_ioctl,
|
||||
.compat_ioctl = sync_fence_ioctl,
|
||||
static const struct file_operations sync_file_fops = {
|
||||
.release = sync_file_release,
|
||||
.poll = sync_file_poll,
|
||||
.unlocked_ioctl = sync_file_ioctl,
|
||||
.compat_ioctl = sync_file_ioctl,
|
||||
};
|
||||
|
||||
|
|
|
|||
|
|
@ -25,7 +25,7 @@
|
|||
|
||||
struct sync_timeline;
|
||||
struct sync_pt;
|
||||
struct sync_fence;
|
||||
struct sync_file;
|
||||
|
||||
/**
|
||||
* struct sync_timeline_ops - sync object implementation ops
|
||||
|
|
@ -108,36 +108,36 @@ static inline struct sync_timeline *sync_pt_parent(struct sync_pt *pt)
|
|||
child_list_lock);
|
||||
}
|
||||
|
||||
struct sync_fence_cb {
|
||||
struct sync_file_cb {
|
||||
struct fence_cb cb;
|
||||
struct fence *sync_pt;
|
||||
struct sync_fence *fence;
|
||||
struct sync_file *sync_file;
|
||||
};
|
||||
|
||||
/**
|
||||
* struct sync_fence - sync fence
|
||||
* struct sync_file - sync file to export to the userspace
|
||||
* @file: file representing this fence
|
||||
* @kref: reference count on fence.
|
||||
* @name: name of sync_fence. Useful for debugging
|
||||
* @sync_fence_list: membership in global fence list
|
||||
* @name: name of sync_file. Useful for debugging
|
||||
* @sync_file_list: membership in global file list
|
||||
* @num_fences number of sync_pts in the fence
|
||||
* @wq: wait queue for fence signaling
|
||||
* @status: 0: signaled, >0:active, <0: error
|
||||
* @cbs: sync_pts callback information
|
||||
*/
|
||||
struct sync_fence {
|
||||
struct sync_file {
|
||||
struct file *file;
|
||||
struct kref kref;
|
||||
char name[32];
|
||||
#ifdef CONFIG_DEBUG_FS
|
||||
struct list_head sync_fence_list;
|
||||
struct list_head sync_file_list;
|
||||
#endif
|
||||
int num_fences;
|
||||
|
||||
wait_queue_head_t wq;
|
||||
atomic_t status;
|
||||
|
||||
struct sync_fence_cb cbs[];
|
||||
struct sync_file_cb cbs[];
|
||||
};
|
||||
|
||||
/*
|
||||
|
|
@ -199,95 +199,95 @@ struct sync_pt *sync_pt_create(struct sync_timeline *parent, int size);
|
|||
void sync_pt_free(struct sync_pt *pt);
|
||||
|
||||
/**
|
||||
* sync_fence_create() - creates a sync fence
|
||||
* @name: name of fence to create
|
||||
* @pt: sync_pt to add to the fence
|
||||
* sync_file_create() - creates a sync file
|
||||
* @name: name of file to create
|
||||
* @pt: sync_pt to add to the file
|
||||
*
|
||||
* Creates a fence containg @pt. Once this is called, the fence takes
|
||||
* Creates a sync_file containg @pt. Once this is called, the sync_file takes
|
||||
* ownership of @pt.
|
||||
*/
|
||||
struct sync_fence *sync_fence_create(const char *name, struct sync_pt *pt);
|
||||
struct sync_file *sync_file_create(const char *name, struct sync_pt *pt);
|
||||
|
||||
/**
|
||||
* sync_fence_create_dma() - creates a sync fence from dma-fence
|
||||
* @name: name of fence to create
|
||||
* @pt: dma-fence to add to the fence
|
||||
* sync_file_create_dma() - creates a sync file from dma-fence
|
||||
* @name: name of file to create
|
||||
* @pt: dma-fence to add to the file
|
||||
*
|
||||
* Creates a fence containg @pt. Once this is called, the fence takes
|
||||
* Creates a sync_file containg @pt. Once this is called, the fence takes
|
||||
* ownership of @pt.
|
||||
*/
|
||||
struct sync_fence *sync_fence_create_dma(const char *name, struct fence *pt);
|
||||
struct sync_file *sync_file_create_dma(const char *name, struct fence *pt);
|
||||
|
||||
/*
|
||||
* API for sync_fence consumers
|
||||
* API for sync_file consumers
|
||||
*/
|
||||
|
||||
/**
|
||||
* sync_fence_merge() - merge two fences
|
||||
* sync_file_merge() - merge two sync_files
|
||||
* @name: name of new fence
|
||||
* @a: fence a
|
||||
* @b: fence b
|
||||
* @a: sync_file a
|
||||
* @b: sync_file b
|
||||
*
|
||||
* Creates a new fence which contains copies of all the sync_pts in both
|
||||
* @a and @b. @a and @b remain valid, independent fences. Returns the
|
||||
* new merged fence or NULL in case of error.
|
||||
* Creates a new sync_file which contains copies of all the sync_pts in both
|
||||
* @a and @b. @a and @b remain valid, independent sync_file. Returns the
|
||||
* new merged sync_file or NULL in case of error.
|
||||
*/
|
||||
struct sync_fence *sync_fence_merge(const char *name,
|
||||
struct sync_fence *a, struct sync_fence *b);
|
||||
struct sync_file *sync_file_merge(const char *name,
|
||||
struct sync_file *a, struct sync_file *b);
|
||||
|
||||
/**
|
||||
* sync_fence_fdget() - get a fence from an fd
|
||||
* sync_file_fdget() - get a sync_file from an fd
|
||||
* @fd: fd referencing a fence
|
||||
*
|
||||
* Ensures @fd references a valid fence, increments the refcount of the backing
|
||||
* file, and returns the fence. Returns the fence or NULL in case of error.
|
||||
* Ensures @fd references a valid sync_file, increments the refcount of the
|
||||
* backing file. Returns the sync_file or NULL in case of error.
|
||||
*/
|
||||
struct sync_fence *sync_fence_fdget(int fd);
|
||||
struct sync_file *sync_file_fdget(int fd);
|
||||
|
||||
/**
|
||||
* sync_fence_put() - puts a reference of a sync fence
|
||||
* @fence: fence to put
|
||||
* sync_file_put() - puts a reference of a sync_file
|
||||
* @sync_file: sync_file to put
|
||||
*
|
||||
* Puts a reference on @fence. If this is the last reference, the fence and
|
||||
* all it's sync_pts will be freed
|
||||
* Puts a reference on @sync_fence. If this is the last reference, the
|
||||
* sync_fil and all it's sync_pts will be freed
|
||||
*/
|
||||
void sync_fence_put(struct sync_fence *fence);
|
||||
void sync_file_put(struct sync_file *sync_file);
|
||||
|
||||
/**
|
||||
* sync_fence_install() - installs a fence into a file descriptor
|
||||
* @fence: fence to install
|
||||
* sync_file_install() - installs a sync_file into a file descriptor
|
||||
* @sync_file: sync_file to install
|
||||
* @fd: file descriptor in which to install the fence
|
||||
*
|
||||
* Installs @fence into @fd. @fd's should be acquired through
|
||||
* Installs @sync_file into @fd. @fd's should be acquired through
|
||||
* get_unused_fd_flags(O_CLOEXEC).
|
||||
*/
|
||||
void sync_fence_install(struct sync_fence *fence, int fd);
|
||||
void sync_file_install(struct sync_file *sync_file, int fd);
|
||||
|
||||
/**
|
||||
* sync_fence_wait() - wait on fence
|
||||
* @fence: fence to wait on
|
||||
* sync_file_wait() - wait on sync file
|
||||
* @sync_file: file to wait on
|
||||
* @tiemout: timeout in ms
|
||||
*
|
||||
* Wait for @fence to be signaled or have an error. Waits indefinitely
|
||||
* Wait for @sync_file to be signaled or have an error. Waits indefinitely
|
||||
* if @timeout < 0.
|
||||
*
|
||||
* Returns 0 if fence signaled, > 0 if it is still active and <0 on error
|
||||
*/
|
||||
int sync_fence_wait(struct sync_fence *fence, long timeout);
|
||||
int sync_file_wait(struct sync_file *sync_file, long timeout);
|
||||
|
||||
#ifdef CONFIG_DEBUG_FS
|
||||
|
||||
void sync_timeline_debug_add(struct sync_timeline *obj);
|
||||
void sync_timeline_debug_remove(struct sync_timeline *obj);
|
||||
void sync_fence_debug_add(struct sync_fence *fence);
|
||||
void sync_fence_debug_remove(struct sync_fence *fence);
|
||||
void sync_file_debug_add(struct sync_file *fence);
|
||||
void sync_file_debug_remove(struct sync_file *fence);
|
||||
void sync_dump(void);
|
||||
|
||||
#else
|
||||
# define sync_timeline_debug_add(obj)
|
||||
# define sync_timeline_debug_remove(obj)
|
||||
# define sync_fence_debug_add(fence)
|
||||
# define sync_fence_debug_remove(fence)
|
||||
# define sync_file_debug_add(fence)
|
||||
# define sync_file_debug_remove(fence)
|
||||
# define sync_dump()
|
||||
#endif
|
||||
|
||||
|
|
|
|||
|
|
@ -35,8 +35,8 @@ static struct dentry *dbgfs;
|
|||
|
||||
static LIST_HEAD(sync_timeline_list_head);
|
||||
static DEFINE_SPINLOCK(sync_timeline_list_lock);
|
||||
static LIST_HEAD(sync_fence_list_head);
|
||||
static DEFINE_SPINLOCK(sync_fence_list_lock);
|
||||
static LIST_HEAD(sync_file_list_head);
|
||||
static DEFINE_SPINLOCK(sync_file_list_lock);
|
||||
|
||||
void sync_timeline_debug_add(struct sync_timeline *obj)
|
||||
{
|
||||
|
|
@ -56,22 +56,22 @@ void sync_timeline_debug_remove(struct sync_timeline *obj)
|
|||
spin_unlock_irqrestore(&sync_timeline_list_lock, flags);
|
||||
}
|
||||
|
||||
void sync_fence_debug_add(struct sync_fence *fence)
|
||||
void sync_file_debug_add(struct sync_file *sync_file)
|
||||
{
|
||||
unsigned long flags;
|
||||
|
||||
spin_lock_irqsave(&sync_fence_list_lock, flags);
|
||||
list_add_tail(&fence->sync_fence_list, &sync_fence_list_head);
|
||||
spin_unlock_irqrestore(&sync_fence_list_lock, flags);
|
||||
spin_lock_irqsave(&sync_file_list_lock, flags);
|
||||
list_add_tail(&sync_file->sync_file_list, &sync_file_list_head);
|
||||
spin_unlock_irqrestore(&sync_file_list_lock, flags);
|
||||
}
|
||||
|
||||
void sync_fence_debug_remove(struct sync_fence *fence)
|
||||
void sync_file_debug_remove(struct sync_file *sync_file)
|
||||
{
|
||||
unsigned long flags;
|
||||
|
||||
spin_lock_irqsave(&sync_fence_list_lock, flags);
|
||||
list_del(&fence->sync_fence_list);
|
||||
spin_unlock_irqrestore(&sync_fence_list_lock, flags);
|
||||
spin_lock_irqsave(&sync_file_list_lock, flags);
|
||||
list_del(&sync_file->sync_file_list);
|
||||
spin_unlock_irqrestore(&sync_file_list_lock, flags);
|
||||
}
|
||||
|
||||
static const char *sync_status_str(int status)
|
||||
|
|
@ -152,17 +152,18 @@ static void sync_print_obj(struct seq_file *s, struct sync_timeline *obj)
|
|||
spin_unlock_irqrestore(&obj->child_list_lock, flags);
|
||||
}
|
||||
|
||||
static void sync_print_fence(struct seq_file *s, struct sync_fence *fence)
|
||||
{
|
||||
static void sync_print_sync_file(struct seq_file *s,
|
||||
struct sync_file *sync_file)
|
||||
{
|
||||
int i;
|
||||
|
||||
seq_printf(s, "[%p] %s: %s\n", fence, fence->name,
|
||||
sync_status_str(atomic_read(&fence->status)));
|
||||
|
||||
for (i = 0; i < fence->num_fences; ++i)
|
||||
sync_print_pt(s, fence->cbs[i].sync_pt, true);
|
||||
}
|
||||
seq_printf(s, "[%p] %s: %s\n", sync_file, sync_file->name,
|
||||
sync_status_str(atomic_read(&sync_file->status)));
|
||||
|
||||
for (i = 0; i < sync_file->num_fences; ++i)
|
||||
sync_print_pt(s, sync_file->cbs[i].sync_pt, true);
|
||||
}
|
||||
|
||||
static int sync_debugfs_show(struct seq_file *s, void *unused)
|
||||
{
|
||||
unsigned long flags;
|
||||
|
|
@ -183,15 +184,15 @@ static int sync_debugfs_show(struct seq_file *s, void *unused)
|
|||
|
||||
seq_puts(s, "fences:\n--------------\n");
|
||||
|
||||
spin_lock_irqsave(&sync_fence_list_lock, flags);
|
||||
list_for_each(pos, &sync_fence_list_head) {
|
||||
struct sync_fence *fence =
|
||||
container_of(pos, struct sync_fence, sync_fence_list);
|
||||
spin_lock_irqsave(&sync_file_list_lock, flags);
|
||||
list_for_each(pos, &sync_file_list_head) {
|
||||
struct sync_file *sync_file =
|
||||
container_of(pos, struct sync_file, sync_file_list);
|
||||
|
||||
sync_print_fence(s, fence);
|
||||
sync_print_sync_file(s, sync_file);
|
||||
seq_puts(s, "\n");
|
||||
}
|
||||
spin_unlock_irqrestore(&sync_fence_list_lock, flags);
|
||||
spin_unlock_irqrestore(&sync_file_list_lock, flags);
|
||||
return 0;
|
||||
}
|
||||
|
||||
|
|
@ -244,7 +245,7 @@ static long sw_sync_ioctl_create_fence(struct sw_sync_timeline *obj,
|
|||
int fd = get_unused_fd_flags(O_CLOEXEC);
|
||||
int err;
|
||||
struct sync_pt *pt;
|
||||
struct sync_fence *fence;
|
||||
struct sync_file *sync_file;
|
||||
struct sw_sync_create_fence_data data;
|
||||
|
||||
if (fd < 0)
|
||||
|
|
@ -262,8 +263,8 @@ static long sw_sync_ioctl_create_fence(struct sw_sync_timeline *obj,
|
|||
}
|
||||
|
||||
data.name[sizeof(data.name) - 1] = '\0';
|
||||
fence = sync_fence_create(data.name, pt);
|
||||
if (!fence) {
|
||||
sync_file = sync_file_create(data.name, pt);
|
||||
if (!sync_file) {
|
||||
sync_pt_free(pt);
|
||||
err = -ENOMEM;
|
||||
goto err;
|
||||
|
|
@ -271,12 +272,12 @@ static long sw_sync_ioctl_create_fence(struct sw_sync_timeline *obj,
|
|||
|
||||
data.fence = fd;
|
||||
if (copy_to_user((void __user *)arg, &data, sizeof(data))) {
|
||||
sync_fence_put(fence);
|
||||
sync_file_put(sync_file);
|
||||
err = -EFAULT;
|
||||
goto err;
|
||||
}
|
||||
|
||||
sync_fence_install(fence, fd);
|
||||
sync_file_install(sync_file, fd);
|
||||
|
||||
return 0;
|
||||
|
||||
|
|
|
|||
|
|
@ -33,19 +33,19 @@ TRACE_EVENT(sync_timeline,
|
|||
);
|
||||
|
||||
TRACE_EVENT(sync_wait,
|
||||
TP_PROTO(struct sync_fence *fence, int begin),
|
||||
TP_PROTO(struct sync_file *sync_file, int begin),
|
||||
|
||||
TP_ARGS(fence, begin),
|
||||
TP_ARGS(sync_file, begin),
|
||||
|
||||
TP_STRUCT__entry(
|
||||
__string(name, fence->name)
|
||||
__string(name, sync_file->name)
|
||||
__field(s32, status)
|
||||
__field(u32, begin)
|
||||
),
|
||||
|
||||
TP_fast_assign(
|
||||
__assign_str(name, fence->name);
|
||||
__entry->status = atomic_read(&fence->status);
|
||||
__assign_str(name, sync_file->name);
|
||||
__entry->status = atomic_read(&sync_file->status);
|
||||
__entry->begin = begin;
|
||||
),
|
||||
|
||||
|
|
|
|||
|
|
@ -46,15 +46,15 @@ struct sync_pt_info {
|
|||
};
|
||||
|
||||
/**
|
||||
* struct sync_fence_info_data - data returned from fence info ioctl
|
||||
* struct sync_file_info_data - data returned from fence info ioctl
|
||||
* @len: ioctl caller writes the size of the buffer its passing in.
|
||||
* ioctl returns length of sync_fence_data returned to userspace
|
||||
* including pt_info.
|
||||
* ioctl returns length of sync_file_info_data returned to
|
||||
* userspace including pt_info.
|
||||
* @name: name of fence
|
||||
* @status: status of fence. 1: signaled 0:active <0:error
|
||||
* @pt_info: a sync_pt_info struct for every sync_pt in the fence
|
||||
*/
|
||||
struct sync_fence_info_data {
|
||||
struct sync_file_info_data {
|
||||
__u32 len;
|
||||
char name[32];
|
||||
__s32 status;
|
||||
|
|
@ -83,15 +83,15 @@ struct sync_fence_info_data {
|
|||
/**
|
||||
* DOC: SYNC_IOC_FENCE_INFO - get detailed information on a fence
|
||||
*
|
||||
* Takes a struct sync_fence_info_data with extra space allocated for pt_info.
|
||||
* Takes a struct sync_file_info_data with extra space allocated for pt_info.
|
||||
* Caller should write the size of the buffer into len. On return, len is
|
||||
* updated to reflect the total size of the sync_fence_info_data including
|
||||
* updated to reflect the total size of the sync_file_info_data including
|
||||
* pt_info.
|
||||
*
|
||||
* pt_info is a buffer containing sync_pt_infos for every sync_pt in the fence.
|
||||
* To iterate over the sync_pt_infos, use the sync_pt_info.len field.
|
||||
*/
|
||||
#define SYNC_IOC_FENCE_INFO _IOWR(SYNC_IOC_MAGIC, 2,\
|
||||
struct sync_fence_info_data)
|
||||
struct sync_file_info_data)
|
||||
|
||||
#endif /* _UAPI_LINUX_SYNC_H */
|
||||
|
|
|
|||
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