Implement the intel_pxp_gem_object_status() to allow i915 display
querying the current PXP session state. In the design, display
should not perform protection flip on the protected buffers if
there is no PXP session alive.
Signed-off-by: Huang, Sean Z <sean.z.huang@xxxxxxxxx>
---
drivers/gpu/drm/i915/pxp/intel_pxp.c | 8 ++++++++
drivers/gpu/drm/i915/pxp/intel_pxp.h | 2 ++
2 files changed, 10 insertions(+)
diff --git a/drivers/gpu/drm/i915/pxp/intel_pxp.c b/drivers/gpu/drm/i915/pxp/intel_pxp.c
index d5e79beca0d3..45db4fb50507 100644
--- a/drivers/gpu/drm/i915/pxp/intel_pxp.c
+++ b/drivers/gpu/drm/i915/pxp/intel_pxp.c
@@ -312,3 +312,11 @@ void intel_pxp_irq_handler(struct intel_gt *gt, u16 iir)
end:
return;
}
+
+bool intel_pxp_gem_object_status(struct drm_i915_private *i915)
+{
+ if (i915->pxp.ctx && i915->pxp.ctx->flag_display_hm_surface_keys)
+ return true;
+ else
+ return false;
+}
diff --git a/drivers/gpu/drm/i915/pxp/intel_pxp.h b/drivers/gpu/drm/i915/pxp/intel_pxp.h
index 96664d71cf0c..6cbe7164ac7a 100644
--- a/drivers/gpu/drm/i915/pxp/intel_pxp.h
+++ b/drivers/gpu/drm/i915/pxp/intel_pxp.h
@@ -116,4 +116,6 @@ int i915_pxp_global_terminate_complete_callback(struct drm_i915_private *i915);
int intel_pxp_init(struct drm_i915_private *i915);
void intel_pxp_uninit(struct drm_i915_private *i915);
+bool intel_pxp_gem_object_status(struct drm_i915_private *i915);
+
#endif
--
2.17.1
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