add rules to install RAS udev rules

- create rules to install Udev rules in configurable location
- create files relating to RAS counters

Change-Id: Iebd57ba2dd09494ea4586b305cd56c86a71fb8b0

level_zero/CMakeLists.txt

@@ -385,6 +385,21 @@ function(generate_l0_lib LIB_NAME MOCKABLE)
     create_project_source_tree(${LIB_NAME})
 endfunction()
 
+if(UNIX)
+    option(L0_INSTALL_UDEV_RULES "Install udev rules. An attempt to automatically determine the proper location will be made if UDEV_RULES_DIR is not set." OFF)
+    if(L0_INSTALL_UDEV_RULES)
+        if(DEFINED UDEV_RULES_DIR)
+            set(UDEV_RULES_DIR_FOUND TRUE)
+        else()
+            include(${CMAKE_CURRENT_SOURCE_DIR}/cmake/${BRANCH_TYPE}/UdevRulesDir.cmake)
+        endif()
+        if(NOT UDEV_RULES_DIR_FOUND)
+            message(SEND_ERROR "udev rule install requested but no rules directory found")
+        endif()
+    endif()
+endif()
+
+
 if(DONT_CARE_OF_VIRTUALS)
     generate_l0_lib(${L0_RELEASE_LIB_NAME} TRUE)
 else()

level_zero/cmake/UdevRulesDir.cmake

@@ -0,0 +1,15 @@
+#
+# Copyright (C) 2020 Intel Corporation
+#
+# SPDX-License-Identifier: MIT
+#
+
+set(UDEV_RULES_DIR_FOUND FALSE)
+
+foreach(rules_dir IN ITEMS "/lib/udev/rules.d" "/usr/lib/udev/rules.d")
+    if(IS_DIRECTORY ${rules_dir})
+        set(UDEV_RULES_DIR ${rules_dir} CACHE PATH "Install path for udev rules")
+        set(UDEV_RULES_DIR_FOUND TRUE)
+        break()
+    endif()
+endforeach()

level_zero/tools/source/sysman/ras/linux/CMakeLists.txt

@@ -17,3 +17,26 @@ endif()
 
 # Make our source files visible to parent
 set_property(GLOBAL PROPERTY L0_SRCS_TOOLS_SYSMAN_RAS_LINUX ${L0_SRCS_TOOLS_SYSMAN_RAS_LINUX})
+
+if(L0_INSTALL_UDEV_RULES)
+   install(
+        FILES "${CMAKE_CURRENT_SOURCE_DIR}${BRANCH_DIR_SUFFIX}/udev/99-drm_ze_intel_gpu.rules"
+        DESTINATION ${UDEV_RULES_DIR}
+        COMPONENT ${PROJECT_NAME}
+    )
+endif()
+
+if(L0_INSTALL_UDEV_RULES)
+    foreach(counter IN ITEMS
+        ras_reset_count
+        ras_cache_error_uncorrectable
+        ras_cache_error_correctable
+    )
+        install(
+            FILES "${CMAKE_CURRENT_SOURCE_DIR}${BRANCH_DIR_SUFFIX}/udev/counter_init"
+            DESTINATION "/var/lib/libze_intel_gpu/"
+            COMPONENT ${PROJECT_NAME}
+            RENAME ${counter}
+        )
+    endforeach()
+endif()

level_zero/tools/source/sysman/ras/linux/udev/99-drm_ze_intel_gpu.rules

@@ -0,0 +1,11 @@
+#
+## Copyright (C) 2020 Intel Corporation
+##
+## SPDX-License-Identifier: MIT
+##
+#
+
+ACTION=="change", \
+SUBSYSTEM=="drm", \
+ENV{RESET}=="1", \
+RUN+="/bin/sh -c 'val=`cat /var/lib/libze_intel_gpu/ras_reset_count` && newval=`expr  $val + 1` && echo $newval > /var/lib/libze_intel_gpu/ras_reset_count'"

level_zero/tools/source/sysman/ras/linux/udev/counter_init

@@ -0,0 +1 @@
+0