From 6e3d5ac13f2a9740a7dbb21aeb06ba7af4f6bd12 Mon Sep 17 00:00:00 2001 From: Dan Willemsen Date: Mon, 16 Feb 2015 21:42:47 -0800 Subject: host/gpu: Upgrade to new fence-based sync implementation Signed-off-by: Dan Willemsen --- drivers/gpu/nvgpu/gk20a/sync_gk20a.c | 14 ++++++++------ 1 file changed, 8 insertions(+), 6 deletions(-) (limited to 'drivers/gpu/nvgpu/gk20a/sync_gk20a.c') diff --git a/drivers/gpu/nvgpu/gk20a/sync_gk20a.c b/drivers/gpu/nvgpu/gk20a/sync_gk20a.c index 46d0addf..5e15cd5f 100644 --- a/drivers/gpu/nvgpu/gk20a/sync_gk20a.c +++ b/drivers/gpu/nvgpu/gk20a/sync_gk20a.c @@ -141,7 +141,7 @@ static struct gk20a_sync_pt *gk20a_sync_pt_create_shared( /* Store the dependency fence for this pt. */ if (dependency) { - if (dependency->status == 0) { + if (!atomic_read(&dependency->status)) { shared->dep = dependency; } else { shared->dep_timestamp = ktime_get(); @@ -198,7 +198,6 @@ static int gk20a_sync_pt_has_signaled(struct sync_pt *sync_pt) { struct gk20a_sync_pt *pt = to_gk20a_sync_pt(sync_pt); struct gk20a_sync_timeline *obj = pt->obj; - struct sync_pt *pos; bool signaled; if (!pt->sema) @@ -217,9 +216,12 @@ static int gk20a_sync_pt_has_signaled(struct sync_pt *sync_pt) * first.*/ if (pt->dep) { s64 ns = 0; - struct list_head *dep_pts = &pt->dep->pt_list_head; - list_for_each_entry(pos, dep_pts, pt_list) { - ns = max(ns, ktime_to_ns(pos->timestamp)); + struct fence *fence; + int i; + + for (i = 0; i < pt->dep->num_fences; i++) { + fence = pt->dep->cbs[i].sync_pt; + ns = max(ns, ktime_to_ns(fence->timestamp)); } pt->dep_timestamp = ns_to_ktime(ns); sync_fence_put(pt->dep); @@ -238,7 +240,7 @@ static inline ktime_t gk20a_sync_pt_duration(struct sync_pt *sync_pt) struct gk20a_sync_pt *pt = to_gk20a_sync_pt(sync_pt); if (!gk20a_sync_pt_has_signaled(sync_pt) || !pt->dep_timestamp.tv64) return ns_to_ktime(0); - return ktime_sub(sync_pt->timestamp, pt->dep_timestamp); + return ktime_sub(sync_pt->base.timestamp, pt->dep_timestamp); } static int gk20a_sync_pt_compare(struct sync_pt *a, struct sync_pt *b) -- cgit v1.2.2