3 files changed, 111 insertions(+), 1 deletions(-)

A public/property-devices.html
M public/property.html
M server.go

@@ 0,0 1,40 @@
+{{template "head" (printf "Devices with %s property: %s" .ObjectType .PropertyName)}}
+
+<h1>DRM database devices with {{.ObjectType}} property: {{.PropertyName}}</h1>
+
+<p><a href="/">Back to index</a></p>
+
+<table>
+    <thead>
+        <tr>
+            <th>ID</th>
+            <th>Bus type</th>
+            <th>Vendor</th>
+            <th>Name</th>
+            <th>Driver</th>
+        </tr>
+    </thead>
+    <tbody>
+        {{range .Devices}}
+        <tr>
+            <td class="pre">
+                <a href="/snapshots/{{.Key}}">{{.BusID}}</a>
+            </td>
+            <td>{{.BusType}}</td>
+            {{if .Vendor}}
+            <td>{{.Vendor}}</td>
+            {{else}}
+            <td class="status-unknown">?</td>
+            {{end}}
+            {{if .Name}}
+            <td>{{.Name}}</td>
+            {{else}}
+            <td class="status-unknown">?</td>
+            {{end}}
+            <td class="pre">
+                <a href="?driver={{.Driver}}" title="Only show {{.Driver}} devices">{{.Driver}}</a>
+            </td>
+        </tr>
+        {{end}}
+    </tbody>
+</table>

@@ 44,10 44,11 @@
   <div>
     {{if $ok}}
     <span class="status-supported">✓</span>
+    <a href="/properties/{{printf "%d" $.ObjectType}}/{{$.Name}}/devices?driver={{$name}}" title="Show {{$name}} devices supporting this property">{{$name}}</a>
     {{else}}
     <span class="status-unsupported">✗</span>
-    {{end}}
     {{$name}}
+    {{end}}
   </div>
 {{end}}
 </div>

@@ 460,6 460,75 @@ func New() *echo.Echo {
 		}{propertyName, &property, objectType, flags, spec, drivers, doc})
 	})
 
+	e.GET("/properties/:obj/:name/devices", func(c echo.Context) error {
+		var objectType drm.ObjectType
+		if i, err := strconv.Atoi(c.Param("obj")); err != nil {
+			return c.String(http.StatusBadRequest, "invalid object type")
+		} else {
+			objectType = drm.ObjectType(i)
+		}
+		propertyName := c.Param("name")
+		driverFilter := c.QueryParam("driver")
+
+		type deviceData struct {
+			Key     string
+			BusID   string
+			BusType drm.BusType
+			Vendor  string
+			Name    string
+			Driver  string
+		}
+
+		var devices []deviceData
+		err := walkLatest(db, walkLatestDevice, func(k string, n *drmtree.Node) error {
+			if driverFilter != "" && n.Driver.Name != driverFilter {
+				return nil
+			}
+
+			found := false
+			err := walkNodeProps(n, func(obj drm.AnyID, name string, p *drmtree.Property) error {
+				if obj.Type() == objectType && name == propertyName {
+					found = true
+				}
+				return nil
+			})
+			if err != nil || !found {
+				return err
+			}
+
+			data := deviceData{
+				Key:     k,
+				BusID:   n.Device.BusID(),
+				BusType: n.Device.BusType,
+				Driver:  n.Driver.Name,
+			}
+
+			switch dev := n.Device.DeviceData.(type) {
+			case *drmtree.DevicePCI:
+				data.Vendor = pciVendors[uint16(dev.Vendor)]
+				data.Name = pciDevices[dev.Vendor<<16|dev.Device]
+			case *drmtree.DevicePlatform:
+				// No-op
+			default:
+				return nil
+			}
+
+			devices = append(devices, data)
+			return nil
+		})
+		if err != nil {
+			return err
+		} else if len(devices) == 0 {
+			return c.String(http.StatusNotFound, "property not found")
+		}
+
+		return c.Render(http.StatusOK, "property-devices.html", struct {
+			ObjectType   drm.ObjectType
+			PropertyName string
+			Devices      []deviceData
+		}{objectType, propertyName, devices})
+	})
+
 	e.GET("/formats", func(c echo.Context) error {
 		type modifierAndFormat struct {
 			mod drm.Modifier