dump vendor cma stat

Bug: 276901078
Test: dumpstate_board.txt on adb bugreport includes the info
Change-Id: Iaef36594a8ef48b0c85039f348618f021f93e8c2
Signed-off-by: Minchan Kim <minchan@google.com>

soc/dump_memory.sh

@@ -29,5 +29,18 @@ do
   echo --- bitmap; cat $d/bitmap;
 done
 
+echo "------ Pixel CMA stat ------"
+for d in $(ls -d /sys/kernel/pixel_stat/mm/cma/*); do
+  if [ -f $d ]; then
+    echo --- $d
+    cat $d
+  else
+    for f in $(ls $d); do
+      echo --- $d/$f
+      cat $d/$f
+    done
+  fi
+done
+
 echo "------ Pixel Trace ------"
 cat "/sys/kernel/tracing/instances/pixel/trace"

soc/sepolicy/soc/dump_memory.te

@@ -8,5 +8,7 @@ userdebug_or_eng(`
   allow dump_memory vendor_cma_debugfs:file r_file_perms;
   allow dump_memory debugfs_tracing_instances:dir search;
   allow dump_memory debugfs_tracing_instances:file r_file_perms;
+  allow dump_memory sysfs_pixel_stat:dir r_dir_perms;
+  allow dump_memory sysfs_pixel_stat:file r_file_perms;
 ')