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| author | Lucas Stach <l.stach@pengutronix.de> | 2017-03-22 14:23:43 +0300 |
|---|---|---|
| committer | Lucas Stach <l.stach@pengutronix.de> | 2017-03-29 16:52:26 +0300 |
| commit | b27734c29c9ac50f7f843bc5372a7b4665aade87 (patch) | |
| tree | 7ea31bf4b47cf0526cf3c7e70af9fe26abf8b434 /drivers/gpu/drm/etnaviv | |
| parent | 65d1086c44791112188f6aebbdc3a27cab3736d3 (diff) | |
| download | linux-b27734c29c9ac50f7f843bc5372a7b4665aade87.tar.xz | |
drm/etnaviv: add lockdep assert to fence allocation
Make sure the GPU lock is taken, so that fence completion order matches
seqno order.
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Diffstat (limited to 'drivers/gpu/drm/etnaviv')
| -rw-r--r-- | drivers/gpu/drm/etnaviv/etnaviv_gpu.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/gpu/drm/etnaviv/etnaviv_gpu.c b/drivers/gpu/drm/etnaviv/etnaviv_gpu.c index 130d7d517a19..a81a2e84f6ad 100644 --- a/drivers/gpu/drm/etnaviv/etnaviv_gpu.c +++ b/drivers/gpu/drm/etnaviv/etnaviv_gpu.c @@ -1051,6 +1051,12 @@ static struct dma_fence *etnaviv_gpu_fence_alloc(struct etnaviv_gpu *gpu) { struct etnaviv_fence *f; + /* + * GPU lock must already be held, otherwise fence completion order might + * not match the seqno order assigned here. + */ + lockdep_assert_held(&gpu->lock); + f = kzalloc(sizeof(*f), GFP_KERNEL); if (!f) return NULL; |