[PATCH v2] hw/display/tcx: Mark the VRAM dirty upon reset

["Philippe Mathieu-Daudé via" <qemu-devel@nongnu.org>]

When resetting we don't want to *reset* the dirty bitmap,
we want to *set* it to mark the entire VRAM dirty due to
the memset() call.

Replace memory_region_reset_dirty() by tcx_set_dirty()
which conveniently set the correct ranges dirty.

Suggested-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
---
Supersedes: <20220122000707.82918-1-f4bug@amsat.org>
---
 hw/display/tcx.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/hw/display/tcx.c b/hw/display/tcx.c
index d4d09d0df8..90e2975e35 100644
--- a/hw/display/tcx.c
+++ b/hw/display/tcx.c
@@ -371,8 +371,7 @@ static void tcx_reset(DeviceState *d)
     s->r[258] = s->g[258] = s->b[258] = 255;
     update_palette_entries(s, 0, 260);
     memset(s->vram, 0, MAXX*MAXY);
-    memory_region_reset_dirty(&s->vram_mem, 0, MAXX * MAXY * (1 + 4 + 4),
-                              DIRTY_MEMORY_VGA);
+    tcx_set_dirty(s, 0, MAXX * MAXY);
     s->dac_index = 0;
     s->dac_state = 0;
     s->cursx = 0xf000; /* Put cursor off screen */
-- 
2.34.1