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kernel: Allow mapping the framebuffer even if its size is not page-aligned
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apio 2023-09-20 22:41:48 +02:00
parent b4a9ea3857
commit 14f0c93175
Signed by: apio
GPG Key ID: B8A7D06E42258954
1 changed files with 2 additions and 1 deletions
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3
kernel/src/fs/devices/FramebufferDevice.cpp
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@ -4,6 +4,7 @@
#include "video/Framebuffer.h" #include "video/Framebuffer.h"
#include <bits/ioctl-defs.h> #include <bits/ioctl-defs.h>
#include <luna/CString.h> #include <luna/CString.h>
#include <luna/Alignment.h>
Result<void> FramebufferDevice::create() Result<void> FramebufferDevice::create()
{ {
@ -27,7 +28,7 @@ Result<usize> FramebufferDevice::write(const u8* buf, usize offset, usize length
Result<u64> FramebufferDevice::query_shared_memory(off_t offset, usize count) Result<u64> FramebufferDevice::query_shared_memory(off_t offset, usize count)
{ {
if (offset + (count * ARCH_PAGE_SIZE) > Framebuffer::size()) return err(EINVAL); if (offset + (count * ARCH_PAGE_SIZE) > align_up<ARCH_PAGE_SIZE>((u64)Framebuffer::size())) return err(EINVAL);
if (!m_shmid.has_value()) if (!m_shmid.has_value())
{ {