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if the framebuffer address isn't page aligned, set fbi_fboffset appropriately

This commit is contained in:
macallan 2018-07-23 00:51:40 +00:00
parent 14482abc9a
commit f24adce462
1 changed files with 10 additions and 3 deletions
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13
sys/dev/fdt/simplefb.c
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@ -1,4 +1,4 @@
/* $NetBSD: simplefb.c,v 1.5 2018/05/06 10:31:10 jmcneill Exp $ */
/* $NetBSD: simplefb.c,v 1.6 2018/07/23 00:51:40 macallan Exp $ */
/*-
* Copyright (c) 2017 Jared McNeill <jmcneill@invisible.ca>
@ -29,7 +29,7 @@
#include "opt_wsdisplay_compat.h"
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: simplefb.c,v 1.5 2018/05/06 10:31:10 jmcneill Exp $");
__KERNEL_RCSID(0, "$NetBSD: simplefb.c,v 1.6 2018/07/23 00:51:40 macallan Exp $");
#include <sys/param.h>
#include <sys/bus.h>
@ -85,8 +85,15 @@ simplefb_ioctl(void *v, void *vs, u_long cmd, void *data, int flag, lwp_t *l)
fbi = data;
ri = &sc->sc_gen.vd.active->scr_ri;
error = wsdisplayio_get_fbinfo(ri, fbi);
if (error == 0)
if (error == 0) {
/*
* XXX
* if the fb isn't page aligned, tell wsfb to skip the
* unaligned part
*/
fbi->fbi_fboffset = sc->sc_paddr & PAGE_MASK;
fbi->fbi_flags |= WSFB_VRAM_IS_RAM;
}
return error;
case WSDISPLAYIO_SVIDEO:
video = *(u_int *)data;