From 8c3115d858464b122b927d00f5ecda3ae2c9b4e0 Mon Sep 17 00:00:00 2001
From: fcambus <fcambus@openbsd.org>
Date: Mon, 19 Jun 2017 11:03:30 +0000
Subject: [PATCH] Add a handler for the WSDISPLAYIO_GINFO ioctl in radeondrm,
 allowing to retrieve basic information about a framebuffer display.

OK visa@, deraadt@
---
 sys/dev/pci/drm/radeon/radeon_kms.c | 12 +++++++++++-
 1 file changed, 11 insertions(+), 1 deletion(-)

diff --git a/sys/dev/pci/drm/radeon/radeon_kms.c b/sys/dev/pci/drm/radeon/radeon_kms.c
index 89d734311a7..4b5dfd595ac 100644
--- a/sys/dev/pci/drm/radeon/radeon_kms.c
+++ b/sys/dev/pci/drm/radeon/radeon_kms.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: radeon_kms.c,v 1.49 2017/01/08 12:11:54 fcambus Exp $	*/
+/*	$OpenBSD: radeon_kms.c,v 1.50 2017/06/19 11:03:30 fcambus Exp $	*/
 /*
  * Copyright 2008 Advanced Micro Devices, Inc.
  * Copyright 2008 Red Hat Inc.
@@ -354,10 +354,20 @@ struct wsdisplay_accessops radeondrm_accessops = {
 int
 radeondrm_wsioctl(void *v, u_long cmd, caddr_t data, int flag, struct proc *p)
 {
+	struct rasops_info *ri = v;
+	struct wsdisplay_fbinfo *wdf;
+
 	switch (cmd) {
 	case WSDISPLAYIO_GTYPE:
 		*(int *)data = WSDISPLAY_TYPE_RADEONDRM;
 		return 0;
+	case WSDISPLAYIO_GINFO:
+		wdf = (struct wsdisplay_fbinfo *)data;
+		wdf->width = ri->ri_width;
+		wdf->height = ri->ri_height;
+		wdf->depth = ri->ri_depth;
+		wdf->cmsize = 0;
+		return 0;
 	default:
 		return -1;
 	}
-- 
2.20.1