Cycles: Tweaks to support CUDA 8 toolkit

All the changes are mainly giving explicit tips on inlining functions,
so they match how inlining worked with previous toolkit.

This make kernel compiled by CUDA 8 render in average with same speed
as previous kernels. Some scenes are somewhat faster, some of them are
somewhat slower. But slowdown is within 1% so far.

On a positive side it allows us to enable newer generation cards on
buildbots (so GTX 10x0 will be officially supported soon).

1 files changed, 9 insertions, 1 deletions

diff --git a/intern/cycles/kernel/closure/bsdf.h b/intern/cycles/kernel/closure/bsdf.h
index a251e3bdcf9..55bdf3ecbb4 100644
--- a/intern/cycles/kernel/closure/bsdf.h
+++ b/intern/cycles/kernel/closure/bsdf.h
@@ -36,7 +36,15 @@
 
 CCL_NAMESPACE_BEGIN
 
-ccl_device int bsdf_sample(KernelGlobals *kg, ShaderData *sd, const ShaderClosure *sc, float randu, float randv, float3 *eval, float3 *omega_in, differential3 *domega_in, float *pdf)
+ccl_device_inline int bsdf_sample(KernelGlobals *kg,
+                                  ShaderData *sd,
+                                  const ShaderClosure *sc,
+                                  float randu,
+                                  float randv,
+                                  float3 *eval,
+                                  float3 *omega_in,
+                                  differential3 *domega_in,
+                                  float *pdf)
 {
 	int label;