From ce379e9444670e88b807b5e260e1623be1304227 Mon Sep 17 00:00:00 2001
From: Ian Moffett <ian@osmora.org>
Date: Sat, 11 Oct 2025 21:30:58 -0400
Subject: kern: vm: Add BYTES_TO_PAGES helper macro

Signed-off-by: Ian Moffett <ian@osmora.org>
---
 src/sys/include/vm/vm.h | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/sys/include/vm/vm.h b/src/sys/include/vm/vm.h
index f5f7b16..59cd4bc 100644
--- a/src/sys/include/vm/vm.h
+++ b/src/sys/include/vm/vm.h
@@ -32,12 +32,15 @@
 
 #include <sys/types.h>
 #include <sys/queue.h>
+#include <sys/param.h>
 #include <sys/bootvars.h>
 
 #define VM_HIGHER_HALF (get_kernel_base())
 #define PHYS_TO_VIRT(PHYS) (void *)((uintptr_t)(PHYS) + VM_HIGHER_HALF)
 #define VIRT_TO_PHYS(VIRT) ((uintptr_t)(VIRT) - VM_HIGHER_HALF)
+
 #define DEFAULT_PAGESIZE 4096
+#define BYTES_TO_PAGES(N) (ALIGN_UP((N), DEFAULT_PAGESIZE) / DEFAULT_PAGESIZE)
 
 /* Physical/virtual address */
 typedef uintptr_t vaddr_t;
-- 
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