Am 10.04.2017 um 09:39 schrieb Monk Liu:
sequence is protected by spinlock so don't access sequence
in paramter seq when invoking this function.
~0 means to get the latest sequence number and 0 means none to
get.
Well you are still not using ~0ull as I said. Using ~0 here will cause
0xffffffff to be used instead of 0xffffffffffffffff.
Additional to that please add a define into amdgpu_drm.h to document
this interface change.
Christian.
Change-Id: Ib7a03f3cf5594deeb4ad333cc59b47a6bddfd1ad
Signed-off-by: Monk Liu <[email protected]>
---
drivers/gpu/drm/amd/amdgpu/amdgpu_ctx.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ctx.c
b/drivers/gpu/drm/amd/amdgpu/amdgpu_ctx.c
index 6d86eae..c24bb90 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ctx.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ctx.c
@@ -277,6 +277,9 @@ struct fence *amdgpu_ctx_get_fence(struct amdgpu_ctx *ctx,
spin_lock(&ctx->ring_lock);
+ if (seq == ~0)
+ seq = ctx->rings[ring->idx].sequence - 1;
+
if (seq >= cring->sequence) {
spin_unlock(&ctx->ring_lock);
return ERR_PTR(-EINVAL);
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