Merge remote-tracking branch 'remotes/kraxel/tags/vga-20200915-pull-request' into staging

vga: fix qxl modular build.
vga: add support for virtio-gpu modular builds.

# gpg: Signature made Tue 15 Sep 2020 14:08:53 BST
# gpg:                using RSA key 4CB6D8EED3E87138
# gpg: Good signature from "Gerd Hoffmann (work) <kraxel@redhat.com>" [full]
# gpg:                 aka "Gerd Hoffmann <gerd@kraxel.org>" [full]
# gpg:                 aka "Gerd Hoffmann (private) <kraxel@gmail.com>" [full]
# Primary key fingerprint: A032 8CFF B93A 17A7 9901  FE7D 4CB6 D8EE D3E8 7138

* remotes/kraxel/tags/vga-20200915-pull-request:
  virtio-gpu: build modular
  virtio-gpu: make virtio_gpu_ops static
  object_initialize: try module load
  meson: remove duplicate qxl sources
  meson: fix module config
  meson: fix qxl dependencies

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

3 files changed, 18 insertions, 28 deletions

diff --git a/hw/display/meson.build b/hw/display/meson.build
index 78adaf9..0d5ddec 100644
--- a/hw/display/meson.build
+++ b/hw/display/meson.build
@@ -41,12 +41,11 @@ specific_ss.add(when: 'CONFIG_VGA', if_true: files('vga.c'))
 
 if config_all_devices.has_key('CONFIG_QXL')
   qxl_ss = ss.source_set()
-  qxl_ss.add(when: 'CONFIG_QXL', if_true: files('qxl.c', 'qxl-logger.c', 'qxl-render.c'))
+  qxl_ss.add(when: 'CONFIG_QXL', if_true: [files('qxl.c', 'qxl-logger.c', 'qxl-render.c'),
+                                           pixman, spice])
   hw_display_modules += {'qxl': qxl_ss}
 endif
 
-softmmu_ss.add(when: 'CONFIG_QXL', if_true: files('qxl.c', 'qxl-logger.c', 'qxl-render.c'))
-
 softmmu_ss.add(when: 'CONFIG_DPCD', if_true: files('dpcd.c'))
 softmmu_ss.add(when: 'CONFIG_XLNX_ZYNQMP_ARM', if_true: files('xlnx_dp.c'))
 
@@ -60,24 +59,14 @@ if config_all_devices.has_key('CONFIG_VIRTIO_GPU')
   virtio_gpu_ss.add(when: 'CONFIG_VIRTIO_GPU',
                     if_true: [files('virtio-gpu-base.c', 'virtio-gpu.c', 'virtio-gpu-3d.c'), pixman, virgl])
   virtio_gpu_ss.add(when: 'CONFIG_VHOST_USER_GPU', if_true: files('vhost-user-gpu.c'))
-  virtio_gpu_ss.add(when: ['CONFIG_VIRTIO_GPU', 'CONFIG_VIRTIO_PCI'], if_true: files('virtio-gpu-pci.c'))
-  virtio_gpu_ss.add(when: ['CONFIG_VHOST_USER_GPU', 'CONFIG_VIRTIO_PCI'], if_true: files('vhost-user-gpu-pci.c'))
-  virtio_gpu_ss.add(when: 'CONFIG_VIRTIO_VGA', if_true: files('virtio-vga.c'))
-  virtio_gpu_ss.add(when: 'CONFIG_VHOST_USER_VGA', if_true: files('vhost-user-vga.c'))
-
-  # FIXME: this was attempted in the Makefile build system; it was then reverted
-  # as it would try to load all devices when the module is loaded, even if
-  # config_devices for this target only has some of them.  Since virtio-gpu-pci
-  # and virtio-vga both instantiate a virtio-gpu-device, fixing it probably does
-  # not even require a dependency system, just splitting the module in three
-  # for CONFIG_VIRTIO_GPU/CONFIG_VHOST_USER_GPU, CONFIG_VIRTIO_PCI and
-  # CONFIG_VIRTIO_VGA/CONFIG_VHOST_USER_VGA.
-  # Sourcesets are a dime a dozen, so keep it and just disable module builds.
-
-  #hw_display_modules += {'virtio-gpu': virtio_gpu_ss}
-  softmmu_ss.add_all(virtio_gpu_ss)
+  hw_display_modules += {'virtio-gpu': virtio_gpu_ss}
 endif
 
+softmmu_ss.add(when: ['CONFIG_VIRTIO_GPU', 'CONFIG_VIRTIO_PCI'], if_true: files('virtio-gpu-pci.c'))
+softmmu_ss.add(when: ['CONFIG_VHOST_USER_GPU', 'CONFIG_VIRTIO_PCI'], if_true: files('vhost-user-gpu-pci.c'))
+softmmu_ss.add(when: 'CONFIG_VIRTIO_VGA', if_true: files('virtio-vga.c'))
+softmmu_ss.add(when: 'CONFIG_VHOST_USER_VGA', if_true: files('vhost-user-vga.c'))
+
 specific_ss.add(when: [x11, opengl, 'CONFIG_MILKYMIST_TMU2'], if_true: files('milkymist-tmu2.c'))
 specific_ss.add(when: 'CONFIG_OMAP', if_true: files('omap_lcdc.c'))
 
diff --git a/hw/display/virtio-gpu-base.c b/hw/display/virtio-gpu-base.c
index 7961308..aeb8723 100644
--- a/hw/display/virtio-gpu-base.c
+++ b/hw/display/virtio-gpu-base.c
@@ -112,7 +112,7 @@ virtio_gpu_gl_block(void *opaque, bool block)
     }
 }
 
-const GraphicHwOps virtio_gpu_ops = {
+static const GraphicHwOps virtio_gpu_ops = {
     .invalidate = virtio_gpu_invalidate_display,
     .gfx_update = virtio_gpu_update_display,
     .text_update = virtio_gpu_text_update,
@@ -162,6 +162,7 @@ virtio_gpu_base_device_realize(DeviceState *qdev,
     g->req_state[0].width = g->conf.xres;
     g->req_state[0].height = g->conf.yres;
 
+    g->hw_ops = &virtio_gpu_ops;
     for (i = 0; i < g->conf.max_outputs; i++) {
         g->scanout[i].con =
             graphic_console_init(DEVICE(g), i, &virtio_gpu_ops, g);
diff --git a/hw/display/virtio-vga.c b/hw/display/virtio-vga.c
index 573e7d5..f9410a0 100644
--- a/hw/display/virtio-vga.c
+++ b/hw/display/virtio-vga.c
@@ -13,7 +13,7 @@ static void virtio_vga_base_invalidate_display(void *opaque)
     VirtIOGPUBase *g = vvga->vgpu;
 
     if (g->enable) {
-        virtio_gpu_ops.invalidate(g);
+        g->hw_ops->invalidate(g);
     } else {
         vvga->vga.hw_ops->invalidate(&vvga->vga);
     }
@@ -25,7 +25,7 @@ static void virtio_vga_base_update_display(void *opaque)
     VirtIOGPUBase *g = vvga->vgpu;
 
     if (g->enable) {
-        virtio_gpu_ops.gfx_update(g);
+        g->hw_ops->gfx_update(g);
     } else {
         vvga->vga.hw_ops->gfx_update(&vvga->vga);
     }
@@ -37,8 +37,8 @@ static void virtio_vga_base_text_update(void *opaque, console_ch_t *chardata)
     VirtIOGPUBase *g = vvga->vgpu;
 
     if (g->enable) {
-        if (virtio_gpu_ops.text_update) {
-            virtio_gpu_ops.text_update(g, chardata);
+        if (g->hw_ops->text_update) {
+            g->hw_ops->text_update(g, chardata);
         }
     } else {
         if (vvga->vga.hw_ops->text_update) {
@@ -52,8 +52,8 @@ static int virtio_vga_base_ui_info(void *opaque, uint32_t idx, QemuUIInfo *info)
     VirtIOVGABase *vvga = opaque;
     VirtIOGPUBase *g = vvga->vgpu;
 
-    if (virtio_gpu_ops.ui_info) {
-        return virtio_gpu_ops.ui_info(g, idx, info);
+    if (g->hw_ops->ui_info) {
+        return g->hw_ops->ui_info(g, idx, info);
     }
     return -1;
 }
@@ -63,8 +63,8 @@ static void virtio_vga_base_gl_block(void *opaque, bool block)
     VirtIOVGABase *vvga = opaque;
     VirtIOGPUBase *g = vvga->vgpu;
 
-    if (virtio_gpu_ops.gl_block) {
-        virtio_gpu_ops.gl_block(g, block);
+    if (g->hw_ops->gl_block) {
+        g->hw_ops->gl_block(g, block);
     }
 }