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 | 7 +++++++
2 files changed, 15 insertions(+)
diff --git a/drivers/gpu/drm/i915/pxp/intel_pxp.c b/drivers/gpu/drm/i915/pxp/intel_pxp.c
index 8134b39c7419..90e6766991c5 100644
--- a/drivers/gpu/drm/i915/pxp/intel_pxp.c
+++ b/drivers/gpu/drm/i915/pxp/intel_pxp.c
@@ -326,3 +326,11 @@ void intel_pxp_irq_handler(struct intel_gt *gt, u16 iir)
i915->pxp.current_events |= events;
schedule_work(&i915->pxp.irq_work);
}
+
+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 818e79e9caca..7556ad5c7904 100644
--- a/drivers/gpu/drm/i915/pxp/intel_pxp.h
+++ b/drivers/gpu/drm/i915/pxp/intel_pxp.h
@@ -116,6 +116,8 @@ 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);
#else
static inline int i915_pxp_ops_ioctl(struct drm_device *dev, void *data, struct drm_file *drmfile)
{
@@ -153,6 +155,11 @@ static inline int intel_pxp_init(struct drm_i915_private *i915)
static inline void intel_pxp_uninit(struct drm_i915_private *i915)
{
}
+
+static inline bool intel_pxp_gem_object_status(struct drm_i915_private *i915)
+{
+ return false;
+}
#endif
#endif /* __INTEL_PXP_PM_H__ */
--
2.17.1
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