1105-i386-memory-Define-GRUB_PAGE_MASK-constant-and-GRUB_.patch

From d9f97aa57e7cb90a0ed3947daba727b2f619b17b Mon Sep 17 00:00:00 2001
From: Krystian Hebel <krystian.hebel@3mdeb.com>
Date: Mon, 22 Jan 2024 13:14:39 +0100
Subject: [PATCH] i386/memory: Define GRUB_PAGE_MASK constant and
 GRUB_PAGE_{UP,DOWN} macros

Subsequent patches will use those macros and constant.

Signed-off-by: Krystian Hebel <krystian.hebel@3mdeb.com>
---
 include/grub/i386/memory.h | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/include/grub/i386/memory.h b/include/grub/i386/memory.h
index c64529630f19..56f64855be7e 100644
--- a/include/grub/i386/memory.h
+++ b/include/grub/i386/memory.h
@@ -22,6 +22,7 @@
 
 #define GRUB_PAGE_SHIFT		12
 #define GRUB_PAGE_SIZE		(1UL << GRUB_PAGE_SHIFT)
+#define GRUB_PAGE_MASK		(~(GRUB_PAGE_SIZE - 1))
 
 /* The flag for protected mode.  */
 #define GRUB_MEMORY_CPU_CR0_PE_ON		0x1
@@ -43,8 +44,12 @@
 
 #define GRUB_MMAP_MALLOC_LOW 1
 
+#include <grub/misc.h>
 #include <grub/types.h>
 
+#define GRUB_PAGE_UP(p)		ALIGN_UP (p, GRUB_PAGE_SIZE)
+#define GRUB_PAGE_DOWN(p)	ALIGN_DOWN (p, GRUB_PAGE_SIZE)
+
 struct grub_e820_mmap_entry
 {
   grub_uint64_t addr;
-- 
2.41.0