Fix GPI-2 and enable TAGASPI

The rdma-core driver.h include is no longer installed:

 56dd87acd2

So ibv_read_sysfs_file() is not defined. As the symbols is still
distributed, we simply add the missing prototype manually.

Similarly, the gaspi_size_t gaspi_get_system_mem() function is not
available from the gaspi public headers, so we define it in the
max_mem.c test.

Fixes: rarias/bscpkgs#7

overlay.nix

@@ -10,9 +10,6 @@ let
     "printf '%s\n' ${toString (collect (x: x ? outPath) pkgs)} > $out";
 
   bscPkgs = {
-    aoccUnwrapped = callPackage ./pkgs/aocc/unwrapped.nix { };
-    aocc = callPackage ./pkgs/aocc/default.nix { };
-    stdenvAocc = final.overrideCC final.stdenv final.aocc;
     bench6 = callPackage ./pkgs/bench6/default.nix { };
     bigotes = callPackage ./pkgs/bigotes/default.nix { };
     clangOmpss2 = callPackage ./pkgs/llvm-ompss2/default.nix { };
@@ -21,7 +18,7 @@ let
     clangOmpss2NodesOmpv = callPackage ./pkgs/llvm-ompss2/default.nix { ompss2rt = final.nodes; openmp = final.openmpv; };
     clangOmpss2Unwrapped = callPackage ./pkgs/llvm-ompss2/clang.nix { };
     #extrae = callPackage ./pkgs/extrae/default.nix { }; # Broken and outdated
-    #gpi-2 = callPackage ./pkgs/gpi-2/default.nix { }; # Broken: https://jungle.bsc.es/git/rarias/bscpkgs/issues/7
+    gpi-2 = callPackage ./pkgs/gpi-2/default.nix { };
     intelPackages_2023 = callPackage ./pkgs/intel-oneapi/2023.nix { };
     jemallocNanos6 = callPackage ./pkgs/nanos6/jemalloc.nix { };
     lmbench = callPackage ./pkgs/lmbench/default.nix { };
@@ -47,7 +44,7 @@ let
     stdenvClangOmpss2Nanos6 = final.stdenv.override { cc = final.clangOmpss2Nanos6; allowedRequisites = null; };
     stdenvClangOmpss2Nodes = final.stdenv.override { cc = final.clangOmpss2Nodes; allowedRequisites = null; };
     stdenvClangOmpss2NodesOmpv = final.stdenv.override { cc = final.clangOmpss2NodesOmpv; allowedRequisites = null; };
-    #tagaspi = callPackage ./pkgs/tagaspi/default.nix { }; # Broken due gpi-2
+    tagaspi = callPackage ./pkgs/tagaspi/default.nix { };
     tampi = callPackage ./pkgs/tampi/default.nix { };
     wxparaver = callPackage ./pkgs/paraver/default.nix { };
   };

pkgs/aocc/default.nix

@@ -1,16 +0,0 @@
-{ wrapCCWith
-, aoccUnwrapped
-}:
-
-let
-  cc = aoccUnwrapped;
-in wrapCCWith {
-  inherit cc;
-
-  extraBuildCommands = ''
-    echo "-isystem ${cc}/include" >> $out/nix-support/cc-cflags
-
-    wrap aocc   $wrapper $ccPath/clang
-    wrap aocc++ $wrapper $ccPath/clang++
-  '';
-}

pkgs/aocc/unwrapped.nix

@@ -1,51 +0,0 @@
-{ lib
-, fetchurl
-, stdenv
-, autoPatchelfHook
-, rocmPackages
-, zlib
-, libffi
-, elfutils
-}:
-
-let
-  # in newer nixpkgs the runtime is hsakmt
-  rocmRuntime =
-    if rocmPackages ? hsakmt then
-      rocmPackages.hsakmt
-    else
-      rocmPackages.rocm-runtime;
-in
-stdenv.mkDerivation {
-  pname = "aocc-compiler";
-  version = "5.0.0";
-
-  src = fetchurl {
-    url = "https://download.amd.com/developer/eula/aocc/aocc-5-0/aocc-compiler-5.0.0.tar";
-    sha256 = "sha256-lm+sLSx1np3m6WnBCtp6ezBsET9/HgfqN2gp7IY4Dao=";
-  };
-
-  nativeBuildInputs = [ autoPatchelfHook ];
-  buildInputs = [
-    elfutils
-    zlib
-    rocmRuntime
-    stdenv.cc.cc.lib
-  ];
-  phases = [ "unpackPhase" "installPhase" "fixupPhase" ];
-  dontStrip = true;
-
-  installPhase = ''
-    mkdir -p $out
-    cp -a . $out/
-
-    ln -s ${lib.getLib libffi}/lib/libffi.so $out/lib/libffi.so.6
-  '';
-
-  passthru = {
-    inherit rocmRuntime;
-    isClang = true; # Needed for wrapCCWith
-  };
-
-  meta.mainProgram = "clang";
-}

pkgs/gpi-2/default.nix

@@ -34,6 +34,8 @@ stdenv.mkDerivation rec {
 
   enableParallelBuilding = true;
 
+  patches = [ ./rdma-core.patch ./max-mem.patch ];
+
   preConfigure = ''
     patchShebangs autogen.sh
     ./autogen.sh

pkgs/gpi-2/max-mem.patch

@@ -0,0 +1,10 @@
+--- a/tests/tests/segments/max_mem.c	2025-09-12 13:30:53.449353591 +0200
++++ b/tests/tests/segments/max_mem.c	2025-09-12 13:33:49.750352401 +0200
+@@ -1,5 +1,7 @@
+ #include <test_utils.h>
+ 
++gaspi_size_t gaspi_get_system_mem (void);
++
+ /* Test allocates 45% of system memory and creates a segment that
+    large or if several ranks per node exist, divided among that
+    number */

pkgs/gpi-2/rdma-core.patch

@@ -0,0 +1,12 @@
+--- a/src/devices/ib/GPI2_IB.h	2025-09-12 13:25:31.564181121 +0200
++++ b/src/devices/ib/GPI2_IB.h	2025-09-12 13:24:49.105422150 +0200
+@@ -26,6 +26,9 @@ along with GPI-2. If not, see <http://ww
+ 
+ #include "GPI2_Dev.h"
+ 
++/* Missing prototype as driver.h is now private */
++int ibv_read_sysfs_file(const char *dir, const char *file, char *buf, size_t size);
++
+ #define GASPI_GID_INDEX   (0)
+ #define PORT_LINK_UP      (5)
+ #define MAX_INLINE_BYTES  (128)

pkgs/nosv/default.nix

@@ -6,6 +6,8 @@
 , pkg-config
 , numactl
 , hwloc
+, papi
+, enablePapi ? true
 , cacheline ? 64 # bits
 , ovni ? null
 , useGit ? false
@@ -56,5 +58,5 @@ in
       numactl
       hwloc
       ovni
-    ];
+    ] ++ lib.optionals enablePapi [ papi ];
   }