[Intel-gfx] [RFC 03/14] drm/i915/pxp: define PXP device flag and kconfig

[Daniele Ceraolo Spurio]

Ahead of the PXP implementation, define the relevant define flag and
kconfig option.

Signed-off-by: Daniele Ceraolo Spurio <daniele.ceraolospurio at intel.com>
---
 drivers/gpu/drm/i915/Kconfig             | 11 +++++++++++
 drivers/gpu/drm/i915/i915_drv.h          |  4 ++++
 drivers/gpu/drm/i915/intel_device_info.h |  1 +
 3 files changed, 16 insertions(+)

diff --git a/drivers/gpu/drm/i915/Kconfig b/drivers/gpu/drm/i915/Kconfig
index 1e1cb245fca7..c55e58bdbe0b 100644
--- a/drivers/gpu/drm/i915/Kconfig
+++ b/drivers/gpu/drm/i915/Kconfig
@@ -130,6 +130,17 @@ config DRM_I915_GVT_KVMGT
 	  Choose this option if you want to enable KVMGT support for
 	  Intel GVT-g.
 
+config DRM_I915_PXP
+	bool "Enable Intel PXP support for Intel Gen12+ platform"
+	depends on DRM_I915
+	depends on INTEL_MEI && INTEL_MEI_PXP
+	default y
+	help
+	  PXP (Protected Xe Path) is an i915 component, available on GEN12+
+	  GPUs, that helps to establish the hardware protected session and
+	  manage the status of the alive software session, as well as its life
+	  cycle.
+
 menu "drm/i915 Debugging"
 depends on DRM_I915
 depends on EXPERT
diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index a2fd7e5039b3..fe1ff025f961 100644
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -1779,6 +1779,10 @@ tgl_stepping_get(struct drm_i915_private *dev_priv)
 
 #define HAS_VRR(i915)	(INTEL_GEN(i915) >= 12)
 
+#define HAS_PXP(dev_priv) (IS_ENABLED(CONFIG_DRM_I915_PXP) && \
+			   INTEL_INFO(dev_priv)->has_pxp) && \
+			   VDBOX_MASK(&dev_priv->gt)
+
 /* Only valid when HAS_DISPLAY() is true */
 #define INTEL_DISPLAY_ENABLED(dev_priv) \
 	(drm_WARN_ON(&(dev_priv)->drm, !HAS_DISPLAY(dev_priv)), !(dev_priv)->params.disable_display)
diff --git a/drivers/gpu/drm/i915/intel_device_info.h b/drivers/gpu/drm/i915/intel_device_info.h
index e6ca1023ffcf..54891f7655e4 100644
--- a/drivers/gpu/drm/i915/intel_device_info.h
+++ b/drivers/gpu/drm/i915/intel_device_info.h
@@ -127,6 +127,7 @@ enum intel_ppgtt_type {
 	func(has_logical_ring_elsq); \
 	func(has_master_unit_irq); \
 	func(has_pooled_eu); \
+	func(has_pxp); \
 	func(has_rc6); \
 	func(has_rc6p); \
 	func(has_rps); \
-- 
2.29.2