--- src/3rdparty/chromium/base/allocator/partition_allocator/partition_alloc.gni.orig	2026-05-08 07:54:08 UTC
+++ src/3rdparty/chromium/base/allocator/partition_allocator/partition_alloc.gni
@@ -66,7 +66,7 @@ if (current_cpu == "x64" || current_cpu == "arm64" || 
 # Whether 64-bit pointers are used.
 # A static_assert in partition_alloc_config.h verifies that.
 if (current_cpu == "x64" || current_cpu == "arm64" || current_cpu == "arm64e" ||
-    current_cpu == "loong64" || current_cpu == "riscv64") {
+    current_cpu == "loong64" || current_cpu == "riscv64" || current_cpu == "ppc64") {
   assert(current_cpu != "arm64e" || (is_ios && target_environment == "device"))
   has_64_bit_pointers = true
 } else if (current_cpu == "x86" || current_cpu == "arm" ||
@@ -87,7 +87,7 @@ use_large_empty_slot_span_ring = true
 # TODO(crbug.com/329199197): Clean this up when experiments are complete.
 use_large_empty_slot_span_ring = true
 
-has_memory_tagging = current_cpu == "arm64" && is_clang && !is_asan &&
+has_memory_tagging = current_cpu == "arm64" && !is_bsd && is_clang && !is_asan &&
                      !is_hwasan && (is_linux || is_android)
 
 declare_args() {
@@ -493,7 +493,7 @@ is_pkeys_available =
 # dependencies that use partition_allocator are compiled in AOSP against a
 # version of glibc that does not include pkeys syscall numbers.
 is_pkeys_available =
-    (is_linux || is_chromeos) && current_cpu == "x64" && !is_cronet_build
+    !is_bsd && (is_linux || is_chromeos) && current_cpu == "x64" && !is_cronet_build
 declare_args() {
   enable_pkeys = is_pkeys_available
 }