Damien Lespiau <damien.lespiau@xxxxxxxxx> writes:
> We were hiting a BUG() in get_context_size() with execlist disabled.
>
> "legacy" contexts are not supported on gen9 so we don't have a gen9
> specific size to add in there. Instead, let's disable legacy contexts
> altogether on gen9, whether we're booting with execlist enabled or not.
>
> Signed-off-by: Damien Lespiau <damien.lespiau@xxxxxxxxx>
Reviewed-by: Mika Kuoppala <mika.kuoppala@xxxxxxxxx>
> ---
> drivers/gpu/drm/i915/i915_gem_context.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/gpu/drm/i915/i915_gem_context.c b/drivers/gpu/drm/i915/i915_gem_context.c
> index a5221d8..ec81d8a 100644
> --- a/drivers/gpu/drm/i915/i915_gem_context.c
> +++ b/drivers/gpu/drm/i915/i915_gem_context.c
> @@ -320,7 +320,7 @@ int i915_gem_context_init(struct drm_device *dev)
> if (WARN_ON(dev_priv->ring[RCS].default_context))
> return 0;
>
> - if (i915.enable_execlists) {
> + if (INTEL_INFO(dev)->gen >= 9 || i915.enable_execlists) {
> /* NB: intentionally left blank. We will allocate our own
> * backing objects as we need them, thank you very much */
> dev_priv->hw_context_size = 0;
> --
> 1.8.3.1
>
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