drm/etnaviv: Use dma_resv locking wrappers

I'll add more fancy logic to them soon, so everyone really has to use
them. Plus they already provide some nice additional debug
infrastructure on top of direct ww_mutex usage for the fences tracked
by dma_resv.

v2: Fix the lost _interruptible (Michael)

Acked-by: Michael J. Ruhl <michael.j.ruhl@intel.com>
Reviewed-by: Lucas Stach <l.stach@pengutronix.de>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Cc: Lucas Stach <l.stach@pengutronix.de>
Cc: Russell King <linux+etnaviv@armlinux.org.uk>
Cc: Christian Gmeiner <christian.gmeiner@gmail.com>
Cc: etnaviv@lists.freedesktop.org
Cc: "Ruhl, Michael J" <michael.j.ruhl@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20191214000927.1616384-1-daniel.vetter@ffwll.ch

diff --git a/drivers/gpu/drm/etnaviv/etnaviv_gem_submit.c b/drivers/gpu/drm/etnaviv/etnaviv_gem_submit.c
index aa3e4c3..3b0afa1 100644 (file)
--- a/drivers/gpu/drm/etnaviv/etnaviv_gem_submit.c
+++ b/drivers/gpu/drm/etnaviv/etnaviv_gem_submit.c
@@ -113,7 +113,7 @@ static void submit_unlock_object(struct etnaviv_gem_submit *submit, int i)
        if (submit->bos[i].flags & BO_LOCKED) {
                struct drm_gem_object *obj = &submit->bos[i].obj->base;
 
-               ww_mutex_unlock(&obj->resv->lock);
+               dma_resv_unlock(obj->resv);
                submit->bos[i].flags &= ~BO_LOCKED;
        }
 }
@@ -133,8 +133,7 @@ retry:
                contended = i;
 
                if (!(submit->bos[i].flags & BO_LOCKED)) {
-                       ret = ww_mutex_lock_interruptible(&obj->resv->lock,
-                                                         ticket);
+                       ret = dma_resv_lock_interruptible(obj->resv, ticket);
                        if (ret == -EALREADY)
                                DRM_ERROR("BO at index %u already on submit list\n",
                                          i);
@@ -161,8 +160,7 @@ fail:
                obj = &submit->bos[contended].obj->base;
 
                /* we lost out in a seqno race, lock and retry.. */
-               ret = ww_mutex_lock_slow_interruptible(&obj->resv->lock,
-                                                      ticket);
+               ret = dma_resv_lock_slow_interruptible(obj->resv, ticket);
                if (!ret) {
                        submit->bos[contended].flags |= BO_LOCKED;
                        slow_locked = contended;