[FLIGHT] linux-kernel: (loongarch64) use 4KB (4-level) page size

This is only intended as an experiment for LATX and old-world compatibility.

runtime-kernel/linux-kernel/autobuild/loongarch64/config

@@ -1,7 +1,7 @@
 # CONFIG_16KB_2LEVEL is not set
-CONFIG_16KB_3LEVEL=y
+# CONFIG_16KB_3LEVEL is not set
 # CONFIG_4KB_3LEVEL is not set
-# CONFIG_4KB_4LEVEL is not set
+CONFIG_4KB_4LEVEL=y
 CONFIG_64BIT=y
 # CONFIG_64KB_2LEVEL is not set
 # CONFIG_64KB_3LEVEL is not set
@@ -2932,7 +2932,7 @@ CONFIG_HAVE_LIVEPATCH=y
 CONFIG_HAVE_MOD_ARCH_SPECIFIC=y
 CONFIG_HAVE_NMI=y
 CONFIG_HAVE_OBJTOOL=y
-CONFIG_HAVE_PAGE_SIZE_16KB=y
+CONFIG_HAVE_PAGE_SIZE_4KB=y
 CONFIG_HAVE_PCI=y
 CONFIG_HAVE_PERF_EVENTS=y
 CONFIG_HAVE_PERF_REGS=y
@@ -5719,8 +5719,8 @@ CONFIG_PAGE_IDLE_FLAG=y
 CONFIG_PAGE_POOL_STATS=y
 CONFIG_PAGE_POOL=y
 CONFIG_PAGE_REPORTING=y
-CONFIG_PAGE_SHIFT=14
-CONFIG_PAGE_SIZE_16KB=y
+CONFIG_PAGE_SHIFT=12
+CONFIG_PAGE_SIZE_4KB=y
 CONFIG_PAGE_SIZE_LESS_THAN_256KB=y
 CONFIG_PAGE_SIZE_LESS_THAN_64KB=y
 CONFIG_PAHOLE_HAS_LANG_EXCLUDE=y
@@ -5916,9 +5916,9 @@ CONFIG_PERF_EVENTS=y
 CONFIG_PERF_USE_VMALLOC=y
 CONFIG_PERSISTENT_KEYRINGS=y
 CONFIG_PFCP=m
-CONFIG_PGTABLE_3LEVEL=y
+CONFIG_PGTABLE_4LEVEL=y
 CONFIG_PGTABLE_HAS_HUGE_LEAVES=y
-CONFIG_PGTABLE_LEVELS=3
+CONFIG_PGTABLE_LEVELS=4
 CONFIG_PHANTOM=m
 CONFIG_PHONET=m
 CONFIG_PHY_CADENCE_DPHY=m

runtime-kernel/linux-kernel/spec

@@ -1,5 +1,5 @@
 VER=6.10.11
-#REL=1
+REL=1
 
 # Note: For use inside autobuild/.
 __VER="${VER}"