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, 3 insertions, 3 deletions

diff --git a/intern/cycles/device/device_cuda.cpp b/intern/cycles/device/device_cuda.cpp
index 2d404918a38..80f2644fa8c 100644
--- a/intern/cycles/device/device_cuda.cpp
+++ b/intern/cycles/device/device_cuda.cpp
@@ -321,11 +321,11 @@ public:
 			return "";
 		}
 		if(cuda_version < 60) {
-			printf("Unsupported CUDA version %d.%d detected, you need CUDA 7.5.\n", cuda_version/10, cuda_version%10);
+			printf("Unsupported CUDA version %d.%d detected, you need CUDA 7.5 or newer.\n", cuda_version/10, cuda_version%10);
 			return "";
 		}
-		else if(cuda_version != 75)
-			printf("CUDA version %d.%d detected, build may succeed but only CUDA 7.5 is officially supported.\n", cuda_version/10, cuda_version%10);
+		else if(cuda_version != 75 && cuda_version != 80)
+			printf("CUDA version %d.%d detected, build may succeed but only CUDA 7.5 and 8.0 are officially supported.\n", cuda_version/10, cuda_version%10);
 
 		/* Compile. */
 		string kernel = path_join(kernel_path, path_join("kernels", path_join("cuda", "kernel.cu")));