gnu: Add amd-smi.

* gnu/packages/rocm.scm (make-esmi-source, %e-smi-version-for-rocm,
e-smi-for-amd-smi, amd-smi): New variables.
* gnu/packages/patches/amd-smi-python.patch: New file.
* gnu/local.mk (dist_patch_DATA): Register it.

Change-Id: Idaba3d36e11457eaf08d1989fac653853c840f95
Signed-off-by: Ludovic Courtès <ludo@gnu.org>

3 files changed, 181 insertions, 0 deletions

diff --git a/gnu/local.mk b/gnu/local.mk
index e1c837d30c8..6234258db17 100644
--- a/gnu/local.mk
+++ b/gnu/local.mk
@@ -987,6 +987,7 @@ dist_patch_DATA =						\
   %D%/packages/patches/akonadi-not-relocatable.patch		\
   %D%/packages/patches/akonadi-timestamps.patch		\
   %D%/packages/patches/alure-dumb-2.patch			\
+  %D%/packages/patches/amd-smi-python.patch			\
   %D%/packages/patches/ibus-anthy-fix-tests.patch		\
   %D%/packages/patches/ibus-table-paths.patch			\
   %D%/packages/patches/anki-mpv-args.patch			\
diff --git a/gnu/packages/patches/amd-smi-python.patch b/gnu/packages/patches/amd-smi-python.patch
new file mode 100644
index 00000000000..4e8f0985d89
--- /dev/null
+++ b/gnu/packages/patches/amd-smi-python.patch
@@ -0,0 +1,101 @@
+From 7501e5f980854996a9f411642f619fda806e6420 Mon Sep 17 00:00:00 2001
+From: Jean-Baptiste Note <jean-baptiste.note@m4x.org>
+Date: Tue, 23 Sep 2025 09:33:13 +0200
+Subject: [PATCH] [python] Guix support patch.
+
+* Remove bundled library in python wrapper.
+
+* Make library lookup consistent with something that can easily be
+patched for guix.
+---
+ py-interface/CMakeLists.txt    | 7 +------
+ py-interface/amdsmi_wrapper.py | 2 ++
+ py-interface/pyproject.toml.in | 4 ----
+ py-interface/setup.py.in       | 4 ----
+ tools/generator.py             | 2 ++
+ 5 files changed, 5 insertions(+), 14 deletions(-)
+
+diff --git a/py-interface/CMakeLists.txt b/py-interface/CMakeLists.txt
+index 6aaa5056..4bc0150e 100644
+--- a/py-interface/CMakeLists.txt
++++ b/py-interface/CMakeLists.txt
+@@ -80,10 +80,6 @@ add_custom_command(
+     COMMAND ln -Pf ${CMAKE_CURRENT_SOURCE_DIR}/README.md ${PY_PACKAGE_DIR}/
+     COMMAND ln -Pf ${PROJECT_SOURCE_DIR}/LICENSE ${PY_PACKAGE_DIR}/)
+ 
+-# copy libamd_smi.so to allow for a self-contained python package
+-add_custom_command(OUTPUT ${PY_PACKAGE_DIR}/libamd_smi.so DEPENDS ${PROJECT_BINARY_DIR}/src/libamd_smi.so
+-                   COMMAND cp "${PROJECT_BINARY_DIR}/src/libamd_smi.so" ${PY_PACKAGE_DIR}/)
+-
+ add_custom_target(
+     python_package ALL
+     DEPENDS ${PY_BUILD_DIR}/pyproject.toml
+@@ -93,8 +89,7 @@ add_custom_target(
+             ${PY_PACKAGE_DIR}/amdsmi_exception.py
+             ${PY_PACKAGE_DIR}/amdsmi_interface.py
+             ${PY_PACKAGE_DIR}/README.md
+-            ${PY_PACKAGE_DIR}/LICENSE
+-            ${PY_PACKAGE_DIR}/libamd_smi.so)
++            ${PY_PACKAGE_DIR}/LICENSE)
+ 
+ install(
+     FILES ${CMAKE_CURRENT_BINARY_DIR}/${PY_BUILD_DIR}/pyproject.toml
+diff --git a/py-interface/amdsmi_wrapper.py b/py-interface/amdsmi_wrapper.py
+index b52d7fa3..f19fbc73 100644
+--- a/py-interface/amdsmi_wrapper.py
++++ b/py-interface/amdsmi_wrapper.py
+@@ -183,6 +183,8 @@ def find_smi_library():
+     rocm_path = os.getenv("ROCM_HOME", os.getenv("ROCM_PATH"))
+     if rocm_path:
+         possible_locations.append(os.path.join(rocm_path, "lib/libamd_smi.so"))
++    if os.path.exists("/opt/rocm/lib/libamd_smi.so"):
++        possible_locations.append("/opt/rocm/lib/libamd_smi.so")
+     # 2.
+     possible_locations.append("libamd_smi.so")
+     # 3.
+diff --git a/py-interface/pyproject.toml.in b/py-interface/pyproject.toml.in
+index 38dc13f1..c80a76df 100644
+--- a/py-interface/pyproject.toml.in
++++ b/py-interface/pyproject.toml.in
+@@ -24,10 +24,6 @@ classifiers = [
+ [tool.setuptools]
+ packages = ["amdsmi"]
+ zip-safe = false
+-include-package-data = true
+-
+-[tool.setuptools.package-data]
+-amdsmi = ["*.so"]
+ 
+ [tool.pytest.ini_options]
+ pythonpath = "/opt/rocm/share/amd_smi"
+diff --git a/py-interface/setup.py.in b/py-interface/setup.py.in
+index dbd98e2b..8d5f283d 100644
+--- a/py-interface/setup.py.in
++++ b/py-interface/setup.py.in
+@@ -13,10 +13,6 @@ setup(
+         "Programming Language :: Python :: 3",
+     ],
+     python_requires=">=3.6",
+-    include_package_data=True,
+-    package_data={
+-        '': ['*.so'],
+-    },
+     zip_safe=False,
+     license='amdsmi/LICENSE',
+ )
+diff --git a/tools/generator.py b/tools/generator.py
+index 2882f494..24454bca 100644
+--- a/tools/generator.py
++++ b/tools/generator.py
+@@ -198,6 +198,8 @@ def find_smi_library():
+     rocm_path = os.getenv("ROCM_HOME", os.getenv("ROCM_PATH"))
+     if rocm_path:
+         possible_locations.append(os.path.join(rocm_path, "lib/{library_name}"))
++    if os.path.exists("/opt/rocm/lib/{library_name}"):
++        possible_locations.append("/opt/rocm/lib/{library_name}")
+     # 2.
+     possible_locations.append("{library_name}")
+     # 3.
+-- 
+2.51.0
+
diff --git a/gnu/packages/rocm.scm b/gnu/packages/rocm.scm
index ea73239f596..3fe94847067 100644
--- a/gnu/packages/rocm.scm
+++ b/gnu/packages/rocm.scm
@@ -335,3 +335,82 @@ cop/read/writer operations.  In addition one can also query the topology of
 the system in terms of memory pools and their agents.")
     (license license:ncsa)))
 
+
+;; e-smi looks hard to unbundle correctly from amd-smi
+;; the required esmi version is hardcoded in CMakeLists.txt
+(define (make-esmi-source version hash)
+  (origin
+    (method git-fetch)
+    (uri (git-reference
+           (url "https://github.com/amd/esmi_ib_library.git")
+           (commit version)))
+    (file-name (git-file-name "esmi_ib_library" version))
+    (sha256 hash)))
+
+(define %e-smi-version-for-rocm "esmi_pkg_ver-4.1.2")
+(define e-smi-for-amd-smi
+  (make-esmi-source
+   %e-smi-version-for-rocm
+   (base32 "1lj35gsa5pgfpsv0bl5y3xpk3xhk8kgsi4nkl2kxj0gsiyny8gf2")))
+
+(define-public amd-smi
+  (package
+    (name "amd-smi")
+    (version "25.5.1")
+    (source (origin
+              (method git-fetch)
+              (uri (git-reference
+                     (url "https://github.com/ROCm/amdsmi")
+                     (commit (string-append "rocm-" %rocm-version))))
+              (file-name (git-file-name name version))
+              (sha256
+               (base32
+                "0cfsj91pwzvc3c306ivvkzp819g4mxr88h091r2hr4f6h4xvvvgl"))
+              (patches
+               (search-patches "amd-smi-python.patch"))))
+    (build-system cmake-build-system)
+    (arguments (list
+                #:tests? #f ;; The test suite is empty and failing as of 25.5.1
+                #:configure-flags
+                #~(list
+                   "-DBUILD_SHARED_LIBS=ON"
+                   ;; this requires ctypeslib2 packaging
+                   ;; "-DBUILD_WRAPPER=ON"
+                   "-DENABLE_ESMI_LIB=ON"
+                   "-DBUILD_CLI=ON")
+                #:phases
+                #~(modify-phases %standard-phases
+                    (add-after 'unpack 'add-e-smi
+                      (lambda* _
+                        (copy-recursively
+                         #$(this-package-input
+                            (origin-file-name e-smi-for-amd-smi))
+                         "esmi_ib_library")
+                        ;; Fool cmake, which uses failing git calls above this.
+                        (substitute* "CMakeLists.txt"
+                          (("# Update to latest tags if not matched")
+                           (format #f "set(latest_esmi_tag ~s)"
+                                   #$%e-smi-version-for-rocm)))))
+                    (add-after 'add-e-smi 'patch-dlopen
+                      (lambda* (#:key inputs #:allow-other-keys)
+                        (substitute* (find-files "src" "\\.cc$")
+                          (("libdrm.so.2")
+                           (search-input-file inputs "/lib/libdrm.so.2"))
+                          (("libdrm_amdgpu.so")
+                           (search-input-file inputs "/lib/libdrm_amdgpu.so")))))
+                    (add-after 'add-e-smi 'patch-python
+                      (lambda* _
+                        (substitute* (find-files "py-interface" "\\.py$")
+                          (("/opt/rocm") #$output)))))))
+    (inputs (list libdrm
+                  python
+                  e-smi-for-amd-smi))
+    (home-page "https://github.com/ROCm/amdsmi")
+    (synopsis "ROCm library and application for managing AMD devices")
+    (description "The AMD @acronym{SMI,System Management Interface} allows
+managing and monitoring AMD devices, particularly in high-performance
+computing environments.  It provides a user-space interface that allows
+applications to control GPU operations, monitor performance, and retrieve
+information about the system's drivers and GPUs.  It also provides a
+command-line tool, @command{amd-smi}, which can be used to do the same.")
+    (license (list license:expat license:ncsa))))