display: enable DIRTY_MEMORY_VGA tracking explicitly

This will be required soon by the memory core.

Tested-by: Aurelien Jarno <aurelien@aurel32.net>
Reviewed-by: Fam Zheng <famz@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

hw/display/cg3.c

@@ -309,6 +309,7 @@ static void cg3_realizefn(DeviceState *dev, Error **errp)
 
     memory_region_init_ram(&s->vram_mem, NULL, "cg3.vram", s->vram_size,
                            &error_abort);
+    memory_region_set_log(&s->vram_mem, true, DIRTY_MEMORY_VGA);
     vmstate_register_ram_global(&s->vram_mem);
     sysbus_init_mmio(sbd, &s->vram_mem);
 

hw/display/exynos4210_fimd.c

@@ -1109,6 +1109,12 @@ static inline int fimd_get_buffer_id(Exynos4210fimdWindow *w)
     }
 }
 
+static void exynos4210_fimd_invalidate(void *opaque)
+{
+    Exynos4210fimdState *s = (Exynos4210fimdState *)opaque;
+    s->invalidate = true;
+}
+
 /* Updates specified window's MemorySection based on values of WINCON,
  * VIDOSDA, VIDOSDB, VIDWADDx and SHADOWCON registers */
 static void fimd_update_memory_section(Exynos4210fimdState *s, unsigned win)
@@ -1136,7 +1142,11 @@ static void fimd_update_memory_section(Exynos4210fimdState *s, unsigned win)
     /* TODO: add .exit and unref the region there.  Not needed yet since sysbus
      * does not support hot-unplug.
      */
-    memory_region_unref(w->mem_section.mr);
+    if (w->mem_section.mr) {
+        memory_region_set_log(w->mem_section.mr, false, DIRTY_MEMORY_VGA);
+        memory_region_unref(w->mem_section.mr);
+    }
+
     w->mem_section = memory_region_find(sysbus_address_space(sbd),
                                         fb_start_addr, w->fb_len);
     assert(w->mem_section.mr);
@@ -1162,6 +1172,8 @@ static void fimd_update_memory_section(Exynos4210fimdState *s, unsigned win)
         cpu_physical_memory_unmap(w->host_fb_addr, fb_mapped_len, 0, 0);
         goto error_return;
     }
+    memory_region_set_log(w->mem_section.mr, true, DIRTY_MEMORY_VGA);
+    exynos4210_fimd_invalidate(s);
     return;
 
 error_return:
@@ -1224,12 +1236,6 @@ static void exynos4210_fimd_update_irq(Exynos4210fimdState *s)
     }
 }
 
-static void exynos4210_fimd_invalidate(void *opaque)
-{
-    Exynos4210fimdState *s = (Exynos4210fimdState *)opaque;
-    s->invalidate = true;
-}
-
 static void exynos4210_update_resolution(Exynos4210fimdState *s)
 {
     DisplaySurface *surface = qemu_console_surface(s->console);

hw/display/g364fb.c

@@ -489,6 +489,7 @@ static void g364fb_init(DeviceState *dev, G364State *s)
     memory_region_init_ram_ptr(&s->mem_vram, NULL, "vram",
                                s->vram_size, s->vram);
     vmstate_register_ram(&s->mem_vram, dev);
+    memory_region_set_log(&s->mem_vram, true, DIRTY_MEMORY_VGA);
 }
 
 #define TYPE_G364 "sysbus-g364"

hw/display/sm501.c

@@ -1412,6 +1412,7 @@ void sm501_init(MemoryRegion *address_space_mem, uint32_t base,
     memory_region_init_ram(&s->local_mem_region, NULL, "sm501.local",
                            local_mem_bytes, &error_abort);
     vmstate_register_ram_global(&s->local_mem_region);
+    memory_region_set_log(&s->local_mem_region, true, DIRTY_MEMORY_VGA);
     s->local_mem = memory_region_get_ram_ptr(&s->local_mem_region);
     memory_region_add_subregion(address_space_mem, base, &s->local_mem_region);
 

hw/display/tcx.c

@@ -1006,6 +1006,7 @@ static void tcx_realizefn(DeviceState *dev, Error **errp)
     memory_region_init_ram(&s->vram_mem, OBJECT(s), "tcx.vram",
                            s->vram_size * (1 + 4 + 4), &error_abort);
     vmstate_register_ram_global(&s->vram_mem);
+    memory_region_set_log(&s->vram_mem, true, DIRTY_MEMORY_VGA);
     vram_base = memory_region_get_ram_ptr(&s->vram_mem);
 
     /* 10/ROM : FCode ROM */