[Intel-gfx] [PATCH v3 3/7] drm/i915: Assert that device info bitmasks have enough bits

[Ville Syrjala]

From: Ville Syrjälä <ville.syrjala at linux.intel.com>

Sprinkle in some BUILD_BUG_ON()s to make sure some of
the bitmasks used in the device info have enough bits.

Do we have a better place for this sort of stuff?

v2: Relocate to the new place

Reviewed-by: Jani Nikula <jani.nikula at intel.com>
Signed-off-by: Ville Syrjälä <ville.syrjala at linux.intel.com>
---
 drivers/gpu/drm/i915/display/intel_display_device.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/gpu/drm/i915/display/intel_display_device.c b/drivers/gpu/drm/i915/display/intel_display_device.c
index f5305447494f..75ebe4c960a6 100644
--- a/drivers/gpu/drm/i915/display/intel_display_device.c
+++ b/drivers/gpu/drm/i915/display/intel_display_device.c
@@ -854,6 +854,10 @@ void intel_display_device_info_runtime_init(struct drm_i915_private *i915)
 	struct intel_display_runtime_info *display_runtime = DISPLAY_RUNTIME_INFO(i915);
 	enum pipe pipe;
 
+	BUILD_BUG_ON(BITS_PER_TYPE(display_runtime->pipe_mask) < I915_MAX_PIPES);
+	BUILD_BUG_ON(BITS_PER_TYPE(display_runtime->cpu_transcoder_mask) < I915_MAX_TRANSCODERS);
+	BUILD_BUG_ON(BITS_PER_TYPE(display_runtime->port_mask) < I915_MAX_PORTS);
+
 	/* Wa_14011765242: adl-s A0,A1 */
 	if (IS_ADLS_DISPLAY_STEP(i915, STEP_A0, STEP_A2))
 		for_each_pipe(i915, pipe)
-- 
2.39.3