Add WARN_ON to find_fw_domain to registers related to uninitialized hardware.
Cc: Imre Deak <[email protected]> Cc: Wang Elaine <[email protected]> Cc: Chris Wilson <[email protected]> Signed-off-by: Joonas Lahtinen <[email protected]> --- drivers/gpu/drm/i915/intel_uncore.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/i915/intel_uncore.c b/drivers/gpu/drm/i915/intel_uncore.c index 07779d0..b20b58e 100644 --- a/drivers/gpu/drm/i915/intel_uncore.c +++ b/drivers/gpu/drm/i915/intel_uncore.c @@ -625,7 +625,12 @@ find_fw_domain(struct drm_i915_private *dev_priv, u32 offset) dev_priv->uncore.fw_domains_table_entries, fw_range_cmp); - return entry ? entry->domains : 0; + if (!entry) + return 0; + + WARN_ON(entry->domains & ~dev_priv->uncore.fw_domains); + + return entry->domains; } static void -- 2.7.4 _______________________________________________ Intel-gfx mailing list [email protected] https://lists.freedesktop.org/mailman/listinfo/intel-gfx
