treewide: make 'gpuBackend' use 'config.(cuda|rocm)Support'

pkgs/applications/science/chemistry/cp2k/default.nix

@@ -28,8 +28,16 @@
 , spfft
 , enableElpa ? false
 , elpa
-, gpuBackend ? "none"
 , cudaPackages
+, rocmPackages
+, config
+, gpuBackend ? (
+  if config.cudaSupport
+  then "cuda"
+  else if config.rocmSupport
+  then "rocm"
+  else "none"
+)
 # gpuVersion needs to be set for both CUDA as well as ROCM hardware.
 # gpuArch is only required for the ROCM stack.
 # Change to a value suitable for your target GPU.
@@ -37,7 +45,6 @@
 # and for Nvidia see https://github.com/cp2k/cp2k/blob/master/INSTALL.md#2i-cuda-optional-improved-performance-on-gpu-systems
 , gpuVersion ? "Mi100"
 , gpuArch ? "gfx908"
-, rocmPackages
 }:
 
 assert builtins.elem gpuBackend [ "none" "cuda" "rocm" ];

pkgs/by-name/si/sirius/package.nix

@@ -21,9 +21,16 @@
 , eigen
 , libvdwxc
 , llvmPackages
-, gpuBackend ? "none"
 , cudaPackages
 , rocmPackages
+, config
+, gpuBackend ? (
+  if config.cudaSupport
+  then "cuda"
+  else if config.rocmSupport
+  then "rocm"
+  else "none"
+)
 }:
 
 assert builtins.elem gpuBackend [ "none" "cuda" "rocm" ];

pkgs/by-name/sp/spfft/package.nix

@@ -6,9 +6,16 @@
 , mpi
 , gfortran
 , llvmPackages
-, gpuBackend ? "none"
 , cudaPackages
 , rocmPackages
+, config
+, gpuBackend ? (
+  if config.cudaSupport
+  then "cuda"
+  else if config.rocmSupport
+  then "rocm"
+  else "none"
+)
 }:
 
 assert builtins.elem gpuBackend [ "none" "cuda" "rocm" ];

pkgs/by-name/sp/spla/package.nix

@@ -6,9 +6,16 @@
 , blas
 , gfortran
 , llvmPackages
-, gpuBackend ? "none"
 , cudaPackages
 , rocmPackages
+, config
+, gpuBackend ? (
+  if config.cudaSupport
+  then "cuda"
+  else if config.rocmSupport
+  then "rocm"
+  else "none"
+)
 }:
 
 assert builtins.elem gpuBackend [ "none" "cuda" "rocm" ];