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authorMark Kettenis <kettenis@cvs.openbsd.org>2022-07-15 17:57:28 +0000
committerMark Kettenis <kettenis@cvs.openbsd.org>2022-07-15 17:57:28 +0000
commit3f47b93dce7330e346a8c804cc4a76cc4069f84d (patch)
tree8df0e9b525b0b79b6c4af50dc7538c9940812896 /sys/arch/loongson/dev/radeonfb.c
parenta293620c322495162cd11778c11d765cda80455b (diff)
Implement support for framebuffers that don't start on a page boundary.
This happens on the new 14" and 16" Macbook Pro where we deliberately use a framebuffer that skips the first few lines to avoid "the notch". The offset of the first pixel is added to struct wsdisplay_fbinfo. The stride is added as well, mirroring the value returned by the WSDISPLAYIO_LINEBYTES ioctl, such that we can retire that one in the future. A compat ioctl is implemented to help the transition. The compat code will be removed after OpenBSD 7.3 has been released. ok miod@
Diffstat (limited to 'sys/arch/loongson/dev/radeonfb.c')
-rw-r--r--sys/arch/loongson/dev/radeonfb.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/sys/arch/loongson/dev/radeonfb.c b/sys/arch/loongson/dev/radeonfb.c
index 96fe82e8d9e..63054969f7b 100644
--- a/sys/arch/loongson/dev/radeonfb.c
+++ b/sys/arch/loongson/dev/radeonfb.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: radeonfb.c,v 1.4 2020/05/25 09:55:48 jsg Exp $ */
+/* $OpenBSD: radeonfb.c,v 1.5 2022/07/15 17:57:26 kettenis Exp $ */
/*
* Copyright (c) 2009 Mark Kettenis.
@@ -306,6 +306,8 @@ radeonfb_ioctl(void *v, u_long cmd, caddr_t data, int flags, struct proc *p)
wdf->width = ri->ri_width;
wdf->height = ri->ri_height;
wdf->depth = ri->ri_depth;
+ wdf->stride = ri->ri_stride;
+ wdf->offset = 0;
wdf->cmsize = 0;
break;
case WSDISPLAYIO_LINEBYTES: