On 7/28/2021 12:21, Matthew Brost wrote:
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@xxxxxxxxx>
---
drivers/gpu/drm/i915/gem/i915_gem_context.c | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/drivers/gpu/drm/i915/gem/i915_gem_context.c b/drivers/gpu/drm/i915/gem/i915_gem_context.c
index 05c3ee191710..9c3672bac0e2 100644
--- a/drivers/gpu/drm/i915/gem/i915_gem_context.c
+++ b/drivers/gpu/drm/i915/gem/i915_gem_context.c
@@ -446,6 +446,13 @@ 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 allowed\n");
I would have said not supported rather than not allowed. Either way:
Reviewed-by: John Harrison <John.C.Harrison@xxxxxxxxx>
+ return -ENODEV;
+ }
+
if (get_user(idx, &ext->virtual_index))
return -EFAULT;
