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drm/msm: fix _NO_IMPLICIT fencing case 

We need to call reservation_object_reserve_shared() in both cases, but
this wasn't happening in the _NO_IMPLICIT submit case.

Fixes: f0a42bb ("drm/msm: submit support for in-fences")
Reported-by: Jordan Crouse <jcrouse@codeaurora.org>
Signed-off-by: Rob Clark <robdclark@gmail.com>
This commit is contained in:
Rob Clark 2017-09-12 14:23:05 -04:00
parent 6bd6ae2dfc
commit 06451a3d1d
2 changed files with 18 additions and 17 deletions
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11
drivers/gpu/drm/msm/msm_gem.c
View File

@ -610,17 +610,6 @@ int msm_gem_sync_object(struct drm_gem_object *obj,
struct dma_fence *fence;
int i, ret;
if (!exclusive) {
/* NOTE: _reserve_shared() must happen before _add_shared_fence(),
* which makes this a slightly strange place to call it. OTOH this
* is a convenient can-fail point to hook it in. (And similar to
* how etnaviv and nouveau handle this.)
*/
ret = reservation_object_reserve_shared(msm_obj->resv);
if (ret)
return ret;
}
fobj = reservation_object_get_list(msm_obj->resv);
if (!fobj || (fobj->shared_count == 0)) {
fence = reservation_object_get_excl(msm_obj->resv);

24
drivers/gpu/drm/msm/msm_gem_submit.c
View File

@ -221,7 +221,7 @@ static int submit_lock_objects(struct msm_gem_submit *submit)
return ret;
}
static int submit_fence_sync(struct msm_gem_submit *submit)
static int submit_fence_sync(struct msm_gem_submit *submit, bool no_implicit)
{
int i, ret = 0;
@ -229,6 +229,20 @@ static int submit_fence_sync(struct msm_gem_submit *submit)
struct msm_gem_object *msm_obj = submit->bos[i].obj;
bool write = submit->bos[i].flags & MSM_SUBMIT_BO_WRITE;
if (!write) {
/* NOTE: _reserve_shared() must happen before
* _add_shared_fence(), which makes this a slightly
* strange place to call it. OTOH this is a
* convenient can-fail point to hook it in.
*/
ret = reservation_object_reserve_shared(msm_obj->resv);
if (ret)
return ret;
}
if (no_implicit)
continue;
ret = msm_gem_sync_object(&msm_obj->base, submit->gpu->fctx, write);
if (ret)
break;
@ -451,11 +465,9 @@ int msm_ioctl_gem_submit(struct drm_device *dev, void *data,
if (ret)
goto out;
if (!(args->flags & MSM_SUBMIT_NO_IMPLICIT)) {
ret = submit_fence_sync(submit);
if (ret)
goto out;
}
ret = submit_fence_sync(submit, !!(args->flags & MSM_SUBMIT_NO_IMPLICIT));
if (ret)
goto out;
ret = submit_pin_objects(submit);
if (ret)