sm501: Add missing arbitration control register
[qemu.git] / hw / display / virtio-vga.c
1 #include "qemu/osdep.h"
2 #include "hw/hw.h"
3 #include "hw/pci/pci.h"
4 #include "ui/console.h"
5 #include "vga_int.h"
6 #include "hw/virtio/virtio-pci.h"
7 #include "qapi/error.h"
8
9 /*
10 * virtio-vga: This extends VirtioPCIProxy.
11 */
12 #define TYPE_VIRTIO_VGA "virtio-vga"
13 #define VIRTIO_VGA(obj) \
14 OBJECT_CHECK(VirtIOVGA, (obj), TYPE_VIRTIO_VGA)
15
16 typedef struct VirtIOVGA {
17 VirtIOPCIProxy parent_obj;
18 VirtIOGPU vdev;
19 VGACommonState vga;
20 MemoryRegion vga_mrs[3];
21 } VirtIOVGA;
22
23 static void virtio_vga_invalidate_display(void *opaque)
24 {
25 VirtIOVGA *vvga = opaque;
26
27 if (vvga->vdev.enable) {
28 virtio_gpu_ops.invalidate(&vvga->vdev);
29 } else {
30 vvga->vga.hw_ops->invalidate(&vvga->vga);
31 }
32 }
33
34 static void virtio_vga_update_display(void *opaque)
35 {
36 VirtIOVGA *vvga = opaque;
37
38 if (vvga->vdev.enable) {
39 virtio_gpu_ops.gfx_update(&vvga->vdev);
40 } else {
41 vvga->vga.hw_ops->gfx_update(&vvga->vga);
42 }
43 }
44
45 static void virtio_vga_text_update(void *opaque, console_ch_t *chardata)
46 {
47 VirtIOVGA *vvga = opaque;
48
49 if (vvga->vdev.enable) {
50 if (virtio_gpu_ops.text_update) {
51 virtio_gpu_ops.text_update(&vvga->vdev, chardata);
52 }
53 } else {
54 if (vvga->vga.hw_ops->text_update) {
55 vvga->vga.hw_ops->text_update(&vvga->vga, chardata);
56 }
57 }
58 }
59
60 static int virtio_vga_ui_info(void *opaque, uint32_t idx, QemuUIInfo *info)
61 {
62 VirtIOVGA *vvga = opaque;
63
64 if (virtio_gpu_ops.ui_info) {
65 return virtio_gpu_ops.ui_info(&vvga->vdev, idx, info);
66 }
67 return -1;
68 }
69
70 static void virtio_vga_gl_block(void *opaque, bool block)
71 {
72 VirtIOVGA *vvga = opaque;
73
74 if (virtio_gpu_ops.gl_block) {
75 virtio_gpu_ops.gl_block(&vvga->vdev, block);
76 }
77 }
78
79 static const GraphicHwOps virtio_vga_ops = {
80 .invalidate = virtio_vga_invalidate_display,
81 .gfx_update = virtio_vga_update_display,
82 .text_update = virtio_vga_text_update,
83 .ui_info = virtio_vga_ui_info,
84 .gl_block = virtio_vga_gl_block,
85 };
86
87 static const VMStateDescription vmstate_virtio_vga = {
88 .name = "virtio-vga",
89 .version_id = 2,
90 .minimum_version_id = 2,
91 .fields = (VMStateField[]) {
92 /* no pci stuff here, saving the virtio device will handle that */
93 VMSTATE_STRUCT(vga, VirtIOVGA, 0, vmstate_vga_common, VGACommonState),
94 VMSTATE_END_OF_LIST()
95 }
96 };
97
98 /* VGA device wrapper around PCI device around virtio GPU */
99 static void virtio_vga_realize(VirtIOPCIProxy *vpci_dev, Error **errp)
100 {
101 VirtIOVGA *vvga = VIRTIO_VGA(vpci_dev);
102 VirtIOGPU *g = &vvga->vdev;
103 VGACommonState *vga = &vvga->vga;
104 Error *err = NULL;
105 uint32_t offset;
106 int i;
107
108 /* init vga compat bits */
109 vga->vram_size_mb = 8;
110 vga_common_init(vga, OBJECT(vpci_dev), false);
111 vga_init(vga, OBJECT(vpci_dev), pci_address_space(&vpci_dev->pci_dev),
112 pci_address_space_io(&vpci_dev->pci_dev), true);
113 pci_register_bar(&vpci_dev->pci_dev, 0,
114 PCI_BASE_ADDRESS_MEM_PREFETCH, &vga->vram);
115
116 /*
117 * Configure virtio bar and regions
118 *
119 * We use bar #2 for the mmio regions, to be compatible with stdvga.
120 * virtio regions are moved to the end of bar #2, to make room for
121 * the stdvga mmio registers at the start of bar #2.
122 */
123 vpci_dev->modern_mem_bar_idx = 2;
124 vpci_dev->msix_bar_idx = 4;
125
126 if (!(vpci_dev->flags & VIRTIO_PCI_FLAG_PAGE_PER_VQ)) {
127 /*
128 * with page-per-vq=off there is no padding space we can use
129 * for the stdvga registers. Make the common and isr regions
130 * smaller then.
131 */
132 vpci_dev->common.size /= 2;
133 vpci_dev->isr.size /= 2;
134 }
135
136 offset = memory_region_size(&vpci_dev->modern_bar);
137 offset -= vpci_dev->notify.size;
138 vpci_dev->notify.offset = offset;
139 offset -= vpci_dev->device.size;
140 vpci_dev->device.offset = offset;
141 offset -= vpci_dev->isr.size;
142 vpci_dev->isr.offset = offset;
143 offset -= vpci_dev->common.size;
144 vpci_dev->common.offset = offset;
145
146 /* init virtio bits */
147 qdev_set_parent_bus(DEVICE(g), BUS(&vpci_dev->bus));
148 virtio_pci_force_virtio_1(vpci_dev);
149 object_property_set_bool(OBJECT(g), true, "realized", &err);
150 if (err) {
151 error_propagate(errp, err);
152 return;
153 }
154
155 /* add stdvga mmio regions */
156 pci_std_vga_mmio_region_init(vga, &vpci_dev->modern_bar,
157 vvga->vga_mrs, true);
158
159 vga->con = g->scanout[0].con;
160 graphic_console_set_hwops(vga->con, &virtio_vga_ops, vvga);
161
162 for (i = 0; i < g->conf.max_outputs; i++) {
163 object_property_set_link(OBJECT(g->scanout[i].con),
164 OBJECT(vpci_dev),
165 "device", errp);
166 }
167 }
168
169 static void virtio_vga_reset(DeviceState *dev)
170 {
171 VirtIOVGA *vvga = VIRTIO_VGA(dev);
172 vvga->vdev.enable = 0;
173
174 vga_dirty_log_start(&vvga->vga);
175 }
176
177 static Property virtio_vga_properties[] = {
178 DEFINE_VIRTIO_GPU_PCI_PROPERTIES(VirtIOPCIProxy),
179 DEFINE_PROP_END_OF_LIST(),
180 };
181
182 static void virtio_vga_class_init(ObjectClass *klass, void *data)
183 {
184 DeviceClass *dc = DEVICE_CLASS(klass);
185 VirtioPCIClass *k = VIRTIO_PCI_CLASS(klass);
186 PCIDeviceClass *pcidev_k = PCI_DEVICE_CLASS(klass);
187
188 set_bit(DEVICE_CATEGORY_DISPLAY, dc->categories);
189 dc->props = virtio_vga_properties;
190 dc->reset = virtio_vga_reset;
191 dc->vmsd = &vmstate_virtio_vga;
192 dc->hotpluggable = false;
193
194 k->realize = virtio_vga_realize;
195 pcidev_k->romfile = "vgabios-virtio.bin";
196 pcidev_k->class_id = PCI_CLASS_DISPLAY_VGA;
197 }
198
199 static void virtio_vga_inst_initfn(Object *obj)
200 {
201 VirtIOVGA *dev = VIRTIO_VGA(obj);
202
203 virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev),
204 TYPE_VIRTIO_GPU);
205 }
206
207 static TypeInfo virtio_vga_info = {
208 .name = TYPE_VIRTIO_VGA,
209 .parent = TYPE_VIRTIO_PCI,
210 .instance_size = sizeof(struct VirtIOVGA),
211 .instance_init = virtio_vga_inst_initfn,
212 .class_init = virtio_vga_class_init,
213 };
214
215 static void virtio_vga_register_types(void)
216 {
217 type_register_static(&virtio_vga_info);
218 }
219
220 type_init(virtio_vga_register_types)