AK: Rename KB, MB, GB to KiB, MiB, GiB

The SI prefixes "k", "M", "G" mean "10^3", "10^6", "10^9".
The IEC prefixes "Ki", "Mi", "Gi" mean "2^10", "2^20", "2^30".

Let's use the correct name, at least in code.

Only changes the name of the constants, no other behavior change.

Kernel/API/Syscall.h

@@ -355,7 +355,7 @@ struct SC_create_thread_params {
     // ... ok, if you say so posix. Guess we get to lie to people about guard page size
     unsigned int m_guard_page_size = 0;          // Rounded up to PAGE_SIZE
     unsigned int m_reported_guard_page_size = 0; // The lie we tell callers
-    unsigned int m_stack_size = 4 * MB;          // Default PTHREAD_STACK_MIN
+    unsigned int m_stack_size = 4 * MiB;         // Default PTHREAD_STACK_MIN
     Userspace<void*> m_stack_location;           // nullptr means any, o.w. process virtual address
 };
 

Kernel/Arch/PC/BIOS.cpp

@@ -34,7 +34,7 @@ namespace Kernel {
 MappedROM map_bios()
 {
     MappedROM mapping;
-    mapping.size = 128 * KB;
+    mapping.size = 128 * KiB;
     mapping.paddr = PhysicalAddress(0xe0000);
     mapping.region = MM.allocate_kernel_region(mapping.paddr, PAGE_ROUND_UP(mapping.size), {}, Region::Access::Read);
     return mapping;

Kernel/FileSystem/Plan9FileSystem.cpp

@@ -837,7 +837,7 @@ KResult Plan9FSInode::traverse_as_directory(Function<bool(const FS::DirectoryEnt
         }
 
         u64 offset = 0;
-        u32 count = fs().adjust_buffer_size(8 * MB);
+        u32 count = fs().adjust_buffer_size(8 * MiB);
 
         while (true) {
             Plan9FS::Message message { fs(), Plan9FS::Message::Type::Treaddir };

Kernel/FileSystem/Plan9FileSystem.h

@@ -105,7 +105,7 @@ private:
     Atomic<u32> m_next_fid { 1 };
 
     ProtocolVersion m_remote_protocol_version { ProtocolVersion::v9P2000 };
-    size_t m_max_message_size { 4 * KB };
+    size_t m_max_message_size { 4 * KiB };
 
     Lock m_send_lock { "Plan9FS send" };
     Atomic<bool> m_someone_is_reading { false };

Kernel/Heap/SlabAllocator.cpp

@@ -128,10 +128,10 @@ void for_each_allocator(Callback callback)
 
 void slab_alloc_init()
 {
-    s_slab_allocator_16.init(128 * KB);
-    s_slab_allocator_32.init(128 * KB);
-    s_slab_allocator_64.init(512 * KB);
-    s_slab_allocator_128.init(512 * KB);
+    s_slab_allocator_16.init(128 * KiB);
+    s_slab_allocator_32.init(128 * KiB);
+    s_slab_allocator_64.init(512 * KiB);
+    s_slab_allocator_128.init(512 * KiB);
 }
 
 void* slab_alloc(size_t slab_size)

Kernel/Heap/kmalloc.cpp

@@ -48,12 +48,12 @@ struct AllocationHeader {
     u8 data[0];
 };
 
-#define BASE_PHYSICAL (0xc0000000 + (4 * MB))
+#define BASE_PHYSICAL (0xc0000000 + (4 * MiB))
 #define CHUNK_SIZE 32
-#define POOL_SIZE (3 * MB)
+#define POOL_SIZE (3 * MiB)
 
-#define ETERNAL_BASE_PHYSICAL (0xc0000000 + (2 * MB))
-#define ETERNAL_RANGE_SIZE (2 * MB)
+#define ETERNAL_BASE_PHYSICAL (0xc0000000 + (2 * MiB))
+#define ETERNAL_RANGE_SIZE (2 * MiB)
 
 static u8 alloc_map[POOL_SIZE / CHUNK_SIZE / 8];
 

Kernel/KBufferBuilder.cpp

@@ -45,7 +45,7 @@ KBuffer KBufferBuilder::build()
 }
 
 KBufferBuilder::KBufferBuilder()
-    : m_buffer(KBuffer::create_with_size(4 * MB, Region::Access::Read | Region::Access::Write))
+    : m_buffer(KBuffer::create_with_size(4 * MiB, Region::Access::Read | Region::Access::Write))
 {
 }
 

Kernel/Net/NetworkTask.cpp

@@ -105,7 +105,7 @@ void NetworkTask_main()
         return packet_size;
     };
 
-    size_t buffer_size = 64 * KB;
+    size_t buffer_size = 64 * KiB;
     auto buffer_region = MM.allocate_kernel_region(buffer_size, "Kernel Packet Buffer", Region::Access::Read | Region::Access::Write, false, true);
     auto buffer = (u8*)buffer_region->vaddr().get();
 

Kernel/PerformanceEventBuffer.cpp

@@ -33,7 +33,7 @@
 namespace Kernel {
 
 PerformanceEventBuffer::PerformanceEventBuffer()
-    : m_buffer(KBuffer::create_with_size(4 * MB))
+    : m_buffer(KBuffer::create_with_size(4 * MiB))
 {
 }
 

Kernel/Profiling.cpp

@@ -64,7 +64,7 @@ void start(Process& process)
     s_pid = process.pid();
 
     if (!s_profiling_buffer) {
-        s_profiling_buffer = RefPtr<KBufferImpl>(KBuffer::create_with_size(8 * MB).impl()).leak_ref();
+        s_profiling_buffer = RefPtr<KBufferImpl>(KBuffer::create_with_size(8 * MiB).impl()).leak_ref();
         s_profiling_buffer->region().commit();
         s_slot_count = s_profiling_buffer->size() / sizeof(Sample);
     }

Kernel/Thread.h

@@ -512,7 +512,7 @@ public:
     }
 
     static constexpr u32 default_kernel_stack_size = 65536;
-    static constexpr u32 default_userspace_stack_size = 4 * MB;
+    static constexpr u32 default_userspace_stack_size = 4 * MiB;
 
     ThreadTracer* tracer() { return m_tracer.ptr(); }
     void start_tracing_from(ProcessID tracer);

Kernel/VM/MemoryManager.cpp

@@ -101,8 +101,8 @@ void MemoryManager::parse_memory_map()
         if (mmap->type != MULTIBOOT_MEMORY_AVAILABLE)
             continue;
 
-        // FIXME: Maybe make use of stuff below the 1MB mark?
-        if (mmap->addr < (1 * MB))
+        // FIXME: Maybe make use of stuff below the 1MiB mark?
+        if (mmap->addr < (1 * MiB))
             continue;
 
         if ((mmap->addr + mmap->len) > 0xffffffff)
@@ -131,9 +131,9 @@ void MemoryManager::parse_memory_map()
         for (size_t page_base = mmap->addr; page_base < (mmap->addr + mmap->len); page_base += PAGE_SIZE) {
             auto addr = PhysicalAddress(page_base);
 
-            if (page_base < 7 * MB) {
+            if (page_base < 7 * MiB) {
                 // nothing
-            } else if (page_base >= 7 * MB && page_base < 8 * MB) {
+            } else if (page_base >= 7 * MiB && page_base < 8 * MiB) {
                 if (region.is_null() || !region_is_super || region->upper().offset(PAGE_SIZE) != addr) {
                     m_super_physical_regions.append(PhysicalRegion::create(addr, addr));
                     region = m_super_physical_regions.last();

Kernel/VM/PageDirectory.cpp

@@ -80,7 +80,7 @@ PageDirectory::PageDirectory(Process& process, const RangeAllocator* parent_rang
     if (parent_range_allocator) {
         m_range_allocator.initialize_from_parent(*parent_range_allocator);
     } else {
-        size_t random_offset = (get_fast_random<u8>() % 32 * MB) & PAGE_MASK;
+        size_t random_offset = (get_fast_random<u8>() % 32 * MiB) & PAGE_MASK;
         u32 base = userspace_range_base + random_offset;
         m_range_allocator.initialize_with_range(VirtualAddress(base), userspace_range_ceiling - base);
     }
@@ -102,7 +102,7 @@ PageDirectory::PageDirectory(Process& process, const RangeAllocator* parent_rang
         MM.unquickmap_page();
     }
 
-    // Clone bottom 2 MB of mappings from kernel_page_directory
+    // Clone bottom 2 MiB of mappings from kernel_page_directory
     PageDirectoryEntry buffer;
     auto* kernel_pd = MM.quickmap_pd(MM.kernel_page_directory(), 0);
     memcpy(&buffer, kernel_pd, sizeof(PageDirectoryEntry));