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-rw-r--r--third_party/base/allocator/partition_allocator/page_allocator.h7
-rw-r--r--third_party/base/allocator/partition_allocator/partition_alloc.h4
2 files changed, 11 insertions, 0 deletions
diff --git a/third_party/base/allocator/partition_allocator/page_allocator.h b/third_party/base/allocator/partition_allocator/page_allocator.h
index be733634c7..aee2532485 100644
--- a/third_party/base/allocator/partition_allocator/page_allocator.h
+++ b/third_party/base/allocator/partition_allocator/page_allocator.h
@@ -18,6 +18,8 @@ namespace base {
#if defined(OS_WIN)
static const size_t kPageAllocationGranularityShift = 16; // 64KB
+#elif defined(_MIPS_ARCH_LOONGSON)
+static const size_t kPageAllocationGranularityShift = 14; // 16KB
#else
static const size_t kPageAllocationGranularityShift = 12; // 4KB
#endif
@@ -30,7 +32,12 @@ static const size_t kPageAllocationGranularityBaseMask =
// All Blink-supported systems have 4096 sized system pages and can handle
// permissions and commit / decommit at this granularity.
+// Loongson have 16384 sized system pages.
+#if defined(_MIPS_ARCH_LOONGSON)
+static const size_t kSystemPageSize = 16384;
+#else
static const size_t kSystemPageSize = 4096;
+#endif
static const size_t kSystemPageOffsetMask = kSystemPageSize - 1;
static const size_t kSystemPageBaseMask = ~kSystemPageOffsetMask;
diff --git a/third_party/base/allocator/partition_allocator/partition_alloc.h b/third_party/base/allocator/partition_allocator/partition_alloc.h
index 5832b9f4be..7e8415c760 100644
--- a/third_party/base/allocator/partition_allocator/partition_alloc.h
+++ b/third_party/base/allocator/partition_allocator/partition_alloc.h
@@ -95,7 +95,11 @@ static const size_t kBucketShift = (kAllocationGranularity == 8) ? 3 : 2;
// system page of the span. For our current max slot span size of 64k and other
// constant values, we pack _all_ PartitionAllocGeneric() sizes perfectly up
// against the end of a system page.
+#if defined(_MIPS_ARCH_LOONGSON)
+static const size_t kPartitionPageShift = 16; // 64KB
+#else
static const size_t kPartitionPageShift = 14; // 16KB
+#endif
static const size_t kPartitionPageSize = 1 << kPartitionPageShift;
static const size_t kPartitionPageOffsetMask = kPartitionPageSize - 1;
static const size_t kPartitionPageBaseMask = ~kPartitionPageOffsetMask;