feat(nix): add ROCm runtime patches for gfx1151

- Added two patches to the ROCm runtime: `rocr-runtime-gfx1151-vgpr.patch` and `rocr-runtime-kernel-stack-size.patch`.
- Fixes compatibility issues, ensures better kernel support, and mitigates potential crashes on older kernels.

flake.nix

@@ -96,6 +96,39 @@
         allowUnfree = true;
       };
 
+      channels.unstable.overlays = [
+        (final: prev: {
+          rocm-runtime = prev.rocm-runtime.overrideAttrs (prevAttrs: {
+            patches = (prevAttrs.patches or [ ]) ++ [
+              (final.fetchpatch {
+                # [PATCH] hsakmt: bump vgpr count for gfx1151 (#1807) (#1986)
+                # We apply only the change that adds a GFX_VERSION_GFX1151 define but
+                # *not* the default vgpr change which causes crashes on old kernels
+                # This was later partially reverted in # [PATCH] Revert "hsakmt: bump vgpr count for gfx1151 (#1807) (#1986)"
+                name = "rocr-runtime-gfx1151-vgpr.patch";
+                url = "https://github.com/ROCm/rocm-systems/commit/09ba45b3f43ec333a84a0ca178fcd1e3ea9400a9.patch";
+                relative = "projects/rocr-runtime";
+                includes = [ "libhsakmt/src/libhsakmt.h" ];
+                hash = "sha256-/V5i+sr88n7fK4yNjR/FpY0ZpiEG5xAD6Oq+9ZOikd4=";
+              })
+              (final.fetchpatch {
+                # [PATCH] hsakmt: Expose and use CWSR and Control stack sizes (#2200)
+                # Fixes potential mismatches between stack sizes configured in amdgpu kernel module
+                # and userspace by relying on kernel value when available
+                # Falls back to hardcoded size based on ISA if kernel is too old. For gfx1151, also prints:
+                # WARNING: KFD ABI 1.20+ is recommended … This may result in faults, crashes and other application instability
+                # This allows new kernels to work with this runtime detection mechanism
+                # Only gfx1151 warns loudly because only it has had the size updated in kernel…
+                name = "rocr-runtime-kernel-stack-size.patch";
+                url = "https://github.com/ROCm/rocm-systems/commit/7037a71f311c021974fafd13727dfefd8a1cc79d.patch";
+                relative = "projects/rocr-runtime";
+                hash = "sha256-EbDxuEvNu0fyQJZmqq0fbcCdNtaEWUbmyPLvcfqDPjc=";
+              })
+            ];
+          });
+        })
+      ];
+
       homes.modules = with inputs; [ neovim-flake.homeManagerModules.default ];
 
       systems.modules.nixos = with inputs; [