[Qemu-ppc] [PULL 1/6] sm501: Update screen on frame buffer address change

[David Gibson]

From: BALATON Zoltan <address@hidden>

When the guest changes the address of the frame buffer we need to
refresh the screen to correctly display the new content. This fixes
display update problems when changing between screens on AmigaOS.

Signed-off-by: BALATON Zoltan <address@hidden>
Signed-off-by: David Gibson <address@hidden>
---
 hw/display/sm501.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/hw/display/sm501.c b/hw/display/sm501.c
index 3661a89f60..9ab29d35dd 100644
--- a/hw/display/sm501.c
+++ b/hw/display/sm501.c
@@ -1235,6 +1235,7 @@ static void sm501_disp_ctrl_write(void *opaque, hwaddr 
addr,
         if (value & 0x8000000) {
             qemu_log_mask(LOG_UNIMP, "Panel external memory not supported\n");
         }
+        s->do_full_update = true;
         break;
     case SM501_DC_PANEL_FB_OFFSET:
         s->dc_panel_fb_offset = value & 0x3FF03FF0;
@@ -1298,6 +1299,7 @@ static void sm501_disp_ctrl_write(void *opaque, hwaddr 
addr,
         if (value & 0x8000000) {
             qemu_log_mask(LOG_UNIMP, "CRT external memory not supported\n");
         }
+        s->do_full_update = true;
         break;
     case SM501_DC_CRT_FB_OFFSET:
         s->dc_crt_fb_offset = value & 0x3FF03FF0;
-- 
2.17.1