From 6fc6831f67fea02341e3ed6f85808246e145631f Mon Sep 17 00:00:00 2001
From: bjorn3 <17426603+bjorn3@users.noreply.github.com>
Date: Mon, 16 Mar 2026 20:42:16 +0100
Subject: [PATCH] drm: Support MODE_PAGE_FLIP and MODE_DIRTYFB

---
 redox-ioctl/src/drm.rs            | 30 +++++++++++++++++++++++++++---
 src/header/sys_ioctl/redox/drm.rs |  4 ++++
 2 files changed, 31 insertions(+), 3 deletions(-)

diff --git a/redox-ioctl/src/drm.rs b/redox-ioctl/src/drm.rs
index 327eb4b4f9..062407b103 100644
--- a/redox-ioctl/src/drm.rs
+++ b/redox-ioctl/src/drm.rs
@@ -4,14 +4,16 @@ use core::{
     ffi::{c_char, c_int, c_uint},
     iter, mem, slice,
 };
+use drm_sys::drm_clip_rect;
 
 pub use drm_sys::{
     __kernel_size_t, DRM_PROP_NAME_LEN, drm_get_cap, drm_mode_card_res,
-    drm_mode_connector_set_property, drm_mode_create_dumb, drm_mode_crtc, drm_mode_cursor,
-    drm_mode_cursor2, drm_mode_destroy_dumb, drm_mode_fb_cmd, drm_mode_fb_cmd2, drm_mode_get_blob,
+    drm_mode_connector_set_property, drm_mode_create_dumb, drm_mode_crtc,
+    drm_mode_crtc_page_flip_target, drm_mode_cursor, drm_mode_cursor2, drm_mode_destroy_dumb,
+    drm_mode_fb_cmd, drm_mode_fb_cmd2, drm_mode_fb_dirty_cmd, drm_mode_get_blob,
     drm_mode_get_connector, drm_mode_get_encoder, drm_mode_get_plane, drm_mode_get_plane_res,
     drm_mode_get_property, drm_mode_map_dumb, drm_mode_modeinfo, drm_mode_obj_get_properties,
-    drm_mode_property_enum, drm_set_client_cap, drm_version, drm_mode_set_plane
+    drm_mode_property_enum, drm_mode_set_plane, drm_set_client_cap, drm_version,
 };
 
 pub const VERSION: u64 = 0;
@@ -185,6 +187,28 @@ pub struct standin_for_uint {
     pub inner: c_uint,
 }
 
+pub const MODE_PAGE_FLIP: u64 = 0xB0;
+define_ioctl_data! {
+    struct drm_mode_crtc_page_flip_target, DrmModeCrtcPageFlipTarget {
+        crtc_id: u32,
+        fb_id: u32,
+        flags: u32,
+        sequence: u32,
+        user_data: u64,
+    }
+}
+
+pub const MODE_DIRTYFB: u64 = 0xB1;
+define_ioctl_data! {
+    struct drm_mode_fb_dirty_cmd, DrmModeFbDirtyCmd {
+        fb_id: u32,
+        flags: u32,
+        color: u32,
+        num_clips: u32,
+        clips_ptr: u64 [array<drm_clip_rect, num_clips>],
+    }
+}
+
 pub const MODE_CREATE_DUMB: u64 = 0xB2;
 define_ioctl_data! {
     struct drm_mode_create_dumb, DrmModeCreateDumb {
diff --git a/src/header/sys_ioctl/redox/drm.rs b/src/header/sys_ioctl/redox/drm.rs
index 70fcced2b2..0557178ee8 100644
--- a/src/header/sys_ioctl/redox/drm.rs
+++ b/src/header/sys_ioctl/redox/drm.rs
@@ -107,6 +107,10 @@ pub(super) unsafe fn ioctl(fd: c_int, func: u8, buf: IoctlBuffer) -> Result<c_in
         0xAD => unsafe { dev.read_write_ioctl::<drm_mode_fb_cmd>(buf, MODE_GET_FB) },
         0xAE => unsafe { dev.read_write_ioctl::<drm_mode_fb_cmd>(buf, MODE_ADD_FB) },
         0xAF => unsafe { dev.read_write_ioctl::<standin_for_uint>(buf, MODE_RM_FB) },
+        0xB0 => unsafe {
+            dev.read_write_ioctl::<drm_mode_crtc_page_flip_target>(buf, MODE_PAGE_FLIP)
+        },
+        0xB1 => unsafe { dev.read_write_ioctl::<drm_mode_fb_dirty_cmd>(buf, MODE_DIRTYFB) },
         0xB2 => unsafe { dev.read_write_ioctl::<drm_mode_create_dumb>(buf, MODE_CREATE_DUMB) },
         0xB3 => unsafe { dev.read_write_ioctl::<drm_mode_map_dumb>(buf, MODE_MAP_DUMB) },
         0xB4 => unsafe { dev.read_write_ioctl::<drm_mode_destroy_dumb>(buf, MODE_DESTROY_DUMB) },