7 files changed, 65 insertions, 0 deletions
diff --git a/xorg-server/include/dix-config.h.in b/xorg-server/include/dix-config.h.in
index 3c9bbafeb..77681a953 100644
--- a/xorg-server/include/dix-config.h.in
+++ b/xorg-server/include/dix-config.h.in
@@ -390,6 +390,9 @@
 /* Use libudev for input hotplug */
 #undef CONFIG_UDEV
 
+/* Use libudev for kms enumeration */
+#undef CONFIG_UDEV_KMS
+
 /* Use udev_monitor_filter_add_match_tag() */
 #undef HAVE_UDEV_MONITOR_FILTER_ADD_MATCH_TAG
 
diff --git a/xorg-server/include/hotplug.h b/xorg-server/include/hotplug.h
index f3eeea21d..96b078d48 100644
--- a/xorg-server/include/hotplug.h
+++ b/xorg-server/include/hotplug.h
@@ -26,8 +26,47 @@
 #ifndef HOTPLUG_H
 #define HOTPLUG_H
 
+#include "list.h"
+
 extern _X_EXPORT void config_pre_init(void);
 extern _X_EXPORT void config_init(void);
 extern _X_EXPORT void config_fini(void);
 
+struct OdevAttribute {
+    struct xorg_list member;
+    int attrib_id;
+    char *attrib_name;
+};
+
+struct OdevAttributes {
+    struct xorg_list list;
+};
+
+struct OdevAttributes *
+config_odev_allocate_attribute_list(void);
+
+void
+config_odev_free_attribute_list(struct OdevAttributes *attribs);
+
+Bool
+config_odev_add_attribute(struct OdevAttributes *attribs, int attrib,
+                          const char *attrib_name);
+
+void
+config_odev_free_attributes(struct OdevAttributes *attribs);
+
+/* path to kernel device node - Linux e.g. /dev/dri/card0 */
+#define ODEV_ATTRIB_PATH 1
+/* system device path - Linux e.g. /sys/devices/pci0000:00/0000:00:01.0/0000:01:00.0/drm/card1 */
+#define ODEV_ATTRIB_SYSPATH 2
+/* DRI-style bus id */
+#define ODEV_ATTRIB_BUSID 3
+
+typedef void (*config_odev_probe_proc_ptr)(struct OdevAttributes *attribs);
+void config_odev_probe(config_odev_probe_proc_ptr probe_callback);
+
+#ifdef CONFIG_UDEV_KMS
+void NewGPUDeviceRequest(struct OdevAttributes *attribs);
+void DeleteGPUDeviceRequest(struct OdevAttributes *attribs);
+#endif
 #endif                          /* HOTPLUG_H */
diff --git a/xorg-server/include/misc.h b/xorg-server/include/misc.h
index aa62f6a3a..6bea82f33 100644
--- a/xorg-server/include/misc.h
+++ b/xorg-server/include/misc.h
@@ -83,10 +83,14 @@ OF THIS SOFTWARE.
 #ifndef MAXSCREENS
 #define MAXSCREENS	16
 #endif
+#ifndef MAXGPUSCREENS
+#define MAXGPUSCREENS	16
+#endif
 #define MAXCLIENTS	256
 #define MAXEXTENSIONS   128
 #define MAXFORMATS	8
 #define MAXDEVICES	40      /* input devices */
+#define GPU_SCREEN_OFFSET 256
 
 /* 128 event opcodes for core + extension events, excluding GE */
 #define MAXEVENTS       128
diff --git a/xorg-server/include/screenint.h b/xorg-server/include/screenint.h
index 6b0cc70ee..8205f6363 100644
--- a/xorg-server/include/screenint.h
+++ b/xorg-server/include/screenint.h
@@ -62,6 +62,15 @@ extern _X_EXPORT int AddScreen(Bool (* /*pfnInit */ )(
                                int /*argc */ ,
                                char ** /*argv */ );
 
+
+extern _X_EXPORT int AddGPUScreen(Bool (*pfnInit) (ScreenPtr /*pScreen */ ,
+                                                   int /*argc */ ,
+                                                   char **      /*argv */
+                                                   ),
+                                  int argc, char **argv);
+
+extern _X_EXPORT void RemoveGPUScreen(ScreenPtr pScreen);
+
 typedef struct _ColormapRec *ColormapPtr;
 
 #endif                          /* SCREENINT_H */
diff --git a/xorg-server/include/scrnintstr.h b/xorg-server/include/scrnintstr.h
index 7af2bf53f..bcac47558 100644
--- a/xorg-server/include/scrnintstr.h
+++ b/xorg-server/include/scrnintstr.h
@@ -477,6 +477,8 @@ typedef struct _Screen {
      * malicious users to steal framebuffer's content if that would be the
      * default */
     Bool canDoBGNoneRoot;
+
+    Bool isGPU;
 } ScreenRec;
 
 static inline RegionPtr
@@ -494,6 +496,8 @@ typedef struct _ScreenInfo {
      PixmapFormatRec formats[MAXFORMATS];
     int numScreens;
     ScreenPtr screens[MAXSCREENS];
+    int numGPUScreens;
+    ScreenPtr gpuscreens[MAXGPUSCREENS];
     int x;                      /* origin */
     int y;                      /* origin */
     int width;                  /* total width of all screens together */
diff --git a/xorg-server/include/xorg-config.h.in b/xorg-server/include/xorg-config.h.in
index 2cc416ae7..a71b25d72 100644
--- a/xorg-server/include/xorg-config.h.in
+++ b/xorg-server/include/xorg-config.h.in
@@ -136,4 +136,7 @@
 /* Have getresuid */
 #undef HAVE_GETRESUID
 
+/* Have X server platform bus support */
+#undef XSERVER_PLATFORM_BUS
+
 #endif /* _XORG_CONFIG_H_ */
diff --git a/xorg-server/include/xorg-server.h.in b/xorg-server/include/xorg-server.h.in
index 8086f32ae..c0761f78a 100644
--- a/xorg-server/include/xorg-server.h.in
+++ b/xorg-server/include/xorg-server.h.in
@@ -205,6 +205,9 @@
 /* X Access Control Extension */
 #undef XACE
 
+/* Have X server platform bus support */
+#undef XSERVER_PLATFORM_BUS
+
 #ifdef _LP64
 #define _XSERVER64 1
 #endif