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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2017-07-21 14:16:42 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2017-07-21 14:16:42 -0700 |
| commit | 24a1635a41bccb5cc426eaef8b88c7e0961ef6bb (patch) | |
| tree | eefc2f6d4a2bacd056d119d9331447e227bf5652 /drivers/dma-buf/sync_file.c | |
| parent | f79ec886f994918de057dd224fa2dfdc162bb3c3 (diff) | |
| parent | 5896ec77d70d33dd38a455b0aa5f3154aeecea09 (diff) | |
Merge tag 'drm-fixes-for-v4.13-rc2' of git://people.freedesktop.org/~airlied/linux
Pull drm fixes from Dave Airlie:
"A bunch of fixes for rc2: two imx regressions, vc4 fix, dma-buf fix,
some displayport mst fixes, and an amdkfd fix.
Nothing too crazy, I assume we just haven't see much rc1 testing yet"
* tag 'drm-fixes-for-v4.13-rc2' of git://people.freedesktop.org/~airlied/linux:
drm/mst: Avoid processing partially received up/down message transactions
drm/mst: Avoid dereferencing a NULL mstb in drm_dp_mst_handle_up_req()
drm/mst: Fix error handling during MST sideband message reception
drm/imx: parallel-display: Accept drm_of_find_panel_or_bridge failure
drm/imx: fix typo in ipu_plane_formats[]
drm/vc4: Fix VBLANK handling in crtc->enable() path
dma-buf/fence: Avoid use of uninitialised timestamp
drm/amdgpu: Remove unused field kgd2kfd_shared_resources.num_mec
drm/radeon: Remove initialization of shared_resources.num_mec
drm/amdkfd: Remove unused references to shared_resources.num_mec
drm/amdgpu: Fix KFD oversubscription by tracking queues correctly
Diffstat (limited to 'drivers/dma-buf/sync_file.c')
| -rw-r--r-- | drivers/dma-buf/sync_file.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/drivers/dma-buf/sync_file.c b/drivers/dma-buf/sync_file.c index 545e2c5c4815..d7e219d2669d 100644 --- a/drivers/dma-buf/sync_file.c +++ b/drivers/dma-buf/sync_file.c @@ -391,7 +391,13 @@ static void sync_fill_fence_info(struct dma_fence *fence, sizeof(info->driver_name)); info->status = dma_fence_get_status(fence); - info->timestamp_ns = ktime_to_ns(fence->timestamp); + while (test_bit(DMA_FENCE_FLAG_SIGNALED_BIT, &fence->flags) && + !test_bit(DMA_FENCE_FLAG_TIMESTAMP_BIT, &fence->flags)) + cpu_relax(); + info->timestamp_ns = + test_bit(DMA_FENCE_FLAG_TIMESTAMP_BIT, &fence->flags) ? + ktime_to_ns(fence->timestamp) : + ktime_set(0, 0); } static long sync_file_ioctl_fence_info(struct sync_file *sync_file, |