ui/console: Remove qemu_create_display_surface_guestmem()

The qemu_create_display_surface_guestmem() function was added in
commit a77549b3 but apparently never used. Remove it.

(The API of this function is in any case awkward as a generic
function: it assumes that a physical address uniquely identifies
a piece of memory in the system, which is mostly but not
always true.)
Signed-off-by: NPeter Maydell <peter.maydell@linaro.org>
Message-id: 20181122170309.4856-1-peter.maydell@linaro.org
Signed-off-by: NGerd Hoffmann <kraxel@redhat.com>

include/ui/console.h

@@ -257,10 +257,6 @@ DisplaySurface *qemu_create_displaysurface_from(int width, int height,
                                                 pixman_format_code_t format,
                                                 int linesize, uint8_t *data);
 DisplaySurface *qemu_create_displaysurface_pixman(pixman_image_t *image);
-DisplaySurface *qemu_create_displaysurface_guestmem(int width, int height,
-                                                    pixman_format_code_t format,
-                                                    int linesize,
-                                                    uint64_t addr);
 DisplaySurface *qemu_create_message_surface(int w, int h,
                                             const char *msg);
 PixelFormat qemu_default_pixelformat(int bpp);

ui/console.c

@@ -1385,42 +1385,6 @@ DisplaySurface *qemu_create_displaysurface_pixman(pixman_image_t *image)
     return surface;
 }
 
-static void qemu_unmap_displaysurface_guestmem(pixman_image_t *image,
-                                               void *unused)
-{
-    void *data = pixman_image_get_data(image);
-    uint32_t size = pixman_image_get_stride(image) *
-        pixman_image_get_height(image);
-    cpu_physical_memory_unmap(data, size, 0, 0);
-}
-
-DisplaySurface *qemu_create_displaysurface_guestmem(int width, int height,
-                                                    pixman_format_code_t format,
-                                                    int linesize, uint64_t addr)
-{
-    DisplaySurface *surface;
-    hwaddr size;
-    void *data;
-
-    if (linesize == 0) {
-        linesize = width * PIXMAN_FORMAT_BPP(format) / 8;
-    }
-
-    size = (hwaddr)linesize * height;
-    data = cpu_physical_memory_map(addr, &size, 0);
-    if (size != (hwaddr)linesize * height) {
-        cpu_physical_memory_unmap(data, size, 0, 0);
-        return NULL;
-    }
-
-    surface = qemu_create_displaysurface_from
-        (width, height, format, linesize, data);
-    pixman_image_set_destroy_function
-        (surface->image, qemu_unmap_displaysurface_guestmem, NULL);
-
-    return surface;
-}
-
 DisplaySurface *qemu_create_message_surface(int w, int h,
                                             const char *msg)
 {