Validate HIP_TARGETS format and allow negative values (#2481)

This PR suggests validating the format of `HIP_TARGETS` (set via
`--target-hip`) to ensure it starts with `gfx` (e.g., `gfx1030`).
It also allows users to explicitly indicate that no AMD target should be
used by passing values like `--target-hip=OFF` or `--target-hip=FALSE`
matching the default behavior

Author: vlad-perevezentsev

CHANGELOG.md

@@ -13,6 +13,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 ### Changed
 
 * Adjusted the `pre-commit` configuration to run autoupdate weekly [#2479](https://github.com/IntelPython/dpnp/pull/2479)
+* Improved validation of `--target-hip` build option to only accept a gfx-prefixed value [#2481](https://github.com/IntelPython/dpnp/pull/2481)
 
 ### Fixed
 

CMakeLists.txt

@@ -106,13 +106,19 @@ if ("x${DPNP_SYCL_TARGETS}" STREQUAL "x")
         set(_use_onemkl_interfaces_cuda ON)
     endif()
 
-    if (NOT "x${HIP_TARGETS}" STREQUAL "x")
-        set(_use_onemkl_interfaces_hip ON)
-
-        if ("x${_dpnp_sycl_targets}" STREQUAL "x")
-            set(_dpnp_sycl_targets "amd_gpu_${HIP_TARGETS},spir64-unknown-unknown")
+    if (HIP_TARGETS)
+        if (HIP_TARGETS MATCHES "^gfx")
+            if ("x${_dpnp_sycl_targets}" STREQUAL "x")
+                set(_dpnp_sycl_targets "amd_gpu_${HIP_TARGETS},spir64-unknown-unknown")
+            else()
+                set(_dpnp_sycl_targets "amd_gpu_${HIP_TARGETS},${_dpnp_sycl_targets}")
+            endif()
+            set(_use_onemkl_interfaces_hip ON)
         else()
-            set(_dpnp_sycl_targets "amd_gpu_${HIP_TARGETS},${_dpnp_sycl_targets}")
+            message(FATAL_ERROR
+                "Invalid value for HIP_TARGETS: \"${HIP_TARGETS}\". "
+                "Expected an architecture name starting with 'gfx', e.g. 'gfx1030'."
+            )
         endif()
     endif()
 else()