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. 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); -- 2.7.4 _______________________________________________ amd-gfx mailing list [email protected] https://lists.freedesktop.org/mailman/listinfo/amd-gfx
