From d27f4a4928f493f9e7a2987ad93e6be918b70f6c Mon Sep 17 00:00:00 2001
From: Lioncash <mathew1800@gmail.com>
Date: Thu, 18 Oct 2018 12:55:27 -0400
Subject: common: Move Is4KBAligned() to alignment.h

Aligning on 4KB pages isn't a Switch-specific thing, so this can be
moved to common so it can be used with other things as well.
---
 src/core/hle/kernel/svc.cpp | 16 +++++++---------
 1 file changed, 7 insertions(+), 9 deletions(-)

(limited to 'src/core/hle/kernel/svc.cpp')

diff --git a/src/core/hle/kernel/svc.cpp b/src/core/hle/kernel/svc.cpp
index d08b84bde..b0bdd822e 100644
--- a/src/core/hle/kernel/svc.cpp
+++ b/src/core/hle/kernel/svc.cpp
@@ -8,6 +8,7 @@
 #include <mutex>
 #include <vector>
 
+#include "common/alignment.h"
 #include "common/assert.h"
 #include "common/logging/log.h"
 #include "common/microprofile.h"
@@ -36,9 +37,6 @@
 
 namespace Kernel {
 namespace {
-constexpr bool Is4KBAligned(VAddr address) {
-    return (address & 0xFFF) == 0;
-}
 
 // Checks if address + size is greater than the given address
 // This can return false if the size causes an overflow of a 64-bit type
@@ -69,11 +67,11 @@ bool IsInsideNewMapRegion(const VMManager& vm, VAddr address, u64 size) {
 // in the same order.
 ResultCode MapUnmapMemorySanityChecks(const VMManager& vm_manager, VAddr dst_addr, VAddr src_addr,
                                       u64 size) {
-    if (!Is4KBAligned(dst_addr) || !Is4KBAligned(src_addr)) {
+    if (!Common::Is4KBAligned(dst_addr) || !Common::Is4KBAligned(src_addr)) {
         return ERR_INVALID_ADDRESS;
     }
 
-    if (size == 0 || !Is4KBAligned(size)) {
+    if (size == 0 || !Common::Is4KBAligned(size)) {
         return ERR_INVALID_SIZE;
     }
 
@@ -570,11 +568,11 @@ static ResultCode MapSharedMemory(Handle shared_memory_handle, VAddr addr, u64 s
               "called, shared_memory_handle=0x{:X}, addr=0x{:X}, size=0x{:X}, permissions=0x{:08X}",
               shared_memory_handle, addr, size, permissions);
 
-    if (!Is4KBAligned(addr)) {
+    if (!Common::Is4KBAligned(addr)) {
         return ERR_INVALID_ADDRESS;
     }
 
-    if (size == 0 || !Is4KBAligned(size)) {
+    if (size == 0 || !Common::Is4KBAligned(size)) {
         return ERR_INVALID_SIZE;
     }
 
@@ -599,11 +597,11 @@ static ResultCode UnmapSharedMemory(Handle shared_memory_handle, VAddr addr, u64
     LOG_WARNING(Kernel_SVC, "called, shared_memory_handle=0x{:08X}, addr=0x{:X}, size=0x{:X}",
                 shared_memory_handle, addr, size);
 
-    if (!Is4KBAligned(addr)) {
+    if (!Common::Is4KBAligned(addr)) {
         return ERR_INVALID_ADDRESS;
     }
 
-    if (size == 0 || !Is4KBAligned(size)) {
+    if (size == 0 || !Common::Is4KBAligned(size)) {
         return ERR_INVALID_SIZE;
     }
 
-- 
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