drm/i915: Disable bonding on gen12+ platforms

[ Upstream commit ce7e75c7ef1bf8ea3d947da8c674d2f40fd7d734 ]

Disable bonding on gen12+ platforms aside from ones already supported by
the i915 - TGL, RKL, and ADL-S.

Signed-off-by: Matthew Brost <matthew.brost@intel.com>
Reviewed-by: John Harrison <John.C.Harrison@Intel.com>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Matt Roper <matthew.d.roper@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210728192100.132425-1-matthew.brost@intel.com
Signed-off-by: Sasha Levin <sashal@kernel.org>

diff --git a/drivers/gpu/drm/i915/gem/i915_gem_context.c b/drivers/gpu/drm/i915/gem/i915_gem_context.c
index ee0c0b712522fffdcf1d92fd6fd548cf77d1aade..ba2e037a82e4ef437e3249dba169e3796b10d3d3 100644 (file)
--- a/drivers/gpu/drm/i915/gem/i915_gem_context.c
+++ b/drivers/gpu/drm/i915/gem/i915_gem_context.c
@@ -442,6 +442,13 @@ 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;