drm/i915: Disable bonding on gen12+ platforms

From Matthew Brost
d839d15b50743164d7ad95f436ea284a2946c179 in linux 5.15.y/5.15.54
ce7e75c7ef1bf8ea3d947da8c674d2f40fd7d734 in mainline linux

diff --git a/sys/dev/pci/drm/i915/gem/i915_gem_context.c b/sys/dev/pci/drm/i915/gem/i915_gem_context.c
index 3e770a4..906a4d4 100644 (file)
--- a/sys/dev/pci/drm/i915/gem/i915_gem_context.c
+++ b/sys/dev/pci/drm/i915/gem/i915_gem_context.c
@@ -450,6 +450,13 @@ set_proto_ctx_engines_bond(struct i915_user_extension __user *base, void *data)
        u16 idx, num_bonds;
        int err, n;
 
+       if (GRAPHICS_VER(i915) >= 12 && !IS_TIGERLAKE(i915) &&
+           !IS_ROCKETLAKE(i915) && !IS_ALDERLAKE_S(i915)) {
+               drm_dbg(&i915->drm,
+                       "Bonding on gen12+ aside from TGL, RKL, and ADL_S not supported\n");
+               return -ENODEV;
+       }
+
        if (get_user(idx, &ext->virtual_index))
                return -EFAULT;