Add helpers for page fault support

Signed-off-by: Milczarek, Slawomir <slawomir.milczarek@intel.com>

shared/source/os_interface/linux/drm_allocation.cpp

@@ -138,6 +138,7 @@ void DrmAllocation::registerBOBindExtHandle(Drm *drm) {
                 }
 
                 bo->requireImmediateBinding(true);
+                bo->requireExplicitResidency(!shouldAllocationPageFault(drm));
             }
         }
     }

shared/source/os_interface/linux/drm_allocation.h

@@ -88,6 +88,7 @@ class DrmAllocation : public GraphicsAllocation {
     void freeRegisteredBOBindExtHandles(Drm *drm);
     void linkWithRegisteredHandle(uint32_t handle);
     MOCKABLE_VIRTUAL void markForCapture();
+    bool shouldAllocationPageFault(Drm *drm);
 
   protected:
     BufferObjects bufferObjects{};

shared/source/os_interface/linux/drm_allocation_extended.cpp

@@ -42,4 +42,8 @@ bool DrmAllocation::setMemAdvise(Drm *drm, MemAdviseFlags flags) {
     return true;
 }
 
+bool DrmAllocation::shouldAllocationPageFault(Drm *drm) {
+    return false;
+}
+
 } // namespace NEO

shared/source/os_interface/linux/drm_buffer_object.h

@@ -91,6 +91,13 @@ class BufferObject {
         requiresImmediateBinding = required;
     }
 
+    bool isExplicitResidencyRequired() {
+        return requiresExplicitResidency;
+    }
+    void requireExplicitResidency(bool required) {
+        requiresExplicitResidency = required;
+    }
+
     void setCacheRegion(CacheRegion regionIndex) { cacheRegion = regionIndex; }
     CacheRegion peekCacheRegion() const { return cacheRegion; }
 
@@ -133,6 +140,7 @@ class BufferObject {
     uint32_t tiling_mode;
     bool allowCapture = false;
     bool requiresImmediateBinding = false;
+    bool requiresExplicitResidency = false;
 
     uint32_t getOsContextId(OsContext *osContext);
     MOCKABLE_VIRTUAL void fillExecObject(drm_i915_gem_exec_object2 &execObject, OsContext *osContext, uint32_t vmHandleId, uint32_t drmContextId);

shared/source/os_interface/linux/drm_neo.h

@@ -172,6 +172,9 @@ class Drm : public DriverModel {
     MOCKABLE_VIRTUAL bool isVmBindAvailable();
     MOCKABLE_VIRTUAL bool registerResourceClasses();
 
+    void queryPageFaultSupport();
+    bool hasPageFaultSupport();
+
     MOCKABLE_VIRTUAL uint32_t registerResource(ResourceClass classType, const void *data, size_t size);
     MOCKABLE_VIRTUAL void unregisterResource(uint32_t handle);
     MOCKABLE_VIRTUAL uint32_t registerIsaCookie(uint32_t isaHandle);
@@ -323,6 +326,7 @@ class Drm : public DriverModel {
     bool bindAvailable = false;
     bool directSubmissionActive = false;
     bool contextDebugSupported = false;
+    bool pageFaultSupported = false;
 
   private:
     int getParamIoctl(int param, int *dstValue);

shared/source/os_interface/linux/drm_query_extended.cpp

@@ -71,4 +71,11 @@ uint32_t Drm::createDrmContextExt(drm_i915_gem_context_create_ext &gcc, uint32_t
 void Drm::appendDrmContextFlags(drm_i915_gem_context_create_ext &gcc, bool isSpecialContextRequested) {
 }
 
+void Drm::queryPageFaultSupport() {
+}
+
+bool Drm::hasPageFaultSupport() {
+    return false;
+}
+
 } // namespace NEO