Merge commit 'v2.6.32' into reiserfs/kill-bkl

Merge-reason: The tree was based 2.6.31. It's better to be up to date
with 2.6.32. Although no conflicting changes were made in between,
it gives benchmarking results closer to the lastest kernel behaviour.

17 files changed, 546 insertions, 80 deletions

diff --git a/include/drm/drmP.h b/include/drm/drmP.h
index 45b67d9c39c1..c8e64bbadbcf 100644
--- a/include/drm/drmP.h
+++ b/include/drm/drmP.h
@@ -88,7 +88,37 @@ struct drm_device;
 #define DRM_UT_CORE 		0x01
 #define DRM_UT_DRIVER		0x02
 #define DRM_UT_KMS		0x04
-#define DRM_UT_MODE		0x08
+/*
+ * Three debug levels are defined.
+ * drm_core, drm_driver, drm_kms
+ * drm_core level can be used in the generic drm code. For example:
+ * 	drm_ioctl, drm_mm, drm_memory
+ * The macro definiton of DRM_DEBUG is used.
+ * 	DRM_DEBUG(fmt, args...)
+ * 	The debug info by using the DRM_DEBUG can be obtained by adding
+ * 	the boot option of "drm.debug=1".
+ *
+ * drm_driver level can be used in the specific drm driver. It is used
+ * to add the debug info related with the drm driver. For example:
+ * i915_drv, i915_dma, i915_gem, radeon_drv,
+ * 	The macro definition of DRM_DEBUG_DRIVER can be used.
+ * 	DRM_DEBUG_DRIVER(fmt, args...)
+ * 	The debug info by using the DRM_DEBUG_DRIVER can be obtained by
+ * 	adding the boot option of "drm.debug=0x02"
+ *
+ * drm_kms level can be used in the KMS code related with specific drm driver.
+ * It is used to add the debug info related with KMS mode. For example:
+ * the connector/crtc ,
+ * 	The macro definition of DRM_DEBUG_KMS can be used.
+ * 	DRM_DEBUG_KMS(fmt, args...)
+ * 	The debug info by using the DRM_DEBUG_KMS can be obtained by
+ * 	adding the boot option of "drm.debug=0x04"
+ *
+ * If we add the boot option of "drm.debug=0x06", we can get the debug info by
+ * using the DRM_DEBUG_KMS and DRM_DEBUG_DRIVER.
+ * If we add the boot option of "drm.debug=0x05", we can get the debug info by
+ * using the DRM_DEBUG_KMS and DRM_DEBUG.
+ */
 
 extern void drm_ut_debug_printk(unsigned int request_level,
 				const char *prefix,
@@ -174,19 +204,14 @@ extern void drm_ut_debug_printk(unsigned int request_level,
 					__func__, fmt, ##args);		\
 	} while (0)
 
-#define DRM_DEBUG_DRIVER(prefix, fmt, args...)				\
+#define DRM_DEBUG_DRIVER(fmt, args...)					\
 	do {								\
-		drm_ut_debug_printk(DRM_UT_DRIVER, prefix,		\
+		drm_ut_debug_printk(DRM_UT_DRIVER, DRM_NAME,		\
 					__func__, fmt, ##args);		\
 	} while (0)
-#define DRM_DEBUG_KMS(prefix, fmt, args...)				\
+#define DRM_DEBUG_KMS(fmt, args...)				\
 	do {								\
-		drm_ut_debug_printk(DRM_UT_KMS, prefix, 		\
-					 __func__, fmt, ##args);	\
-	} while (0)
-#define DRM_DEBUG_MODE(prefix, fmt, args...)				\
-	do {								\
-		drm_ut_debug_printk(DRM_UT_MODE, prefix, 		\
+		drm_ut_debug_printk(DRM_UT_KMS, DRM_NAME, 		\
 					 __func__, fmt, ##args);	\
 	} while (0)
 #define DRM_LOG(fmt, args...)						\
@@ -210,9 +235,8 @@ extern void drm_ut_debug_printk(unsigned int request_level,
 					NULL, fmt, ##args);		\
 	} while (0)
 #else
-#define DRM_DEBUG_DRIVER(prefix, fmt, args...) do { } while (0)
-#define DRM_DEBUG_KMS(prefix, fmt, args...)	do { } while (0)
-#define DRM_DEBUG_MODE(prefix, fmt, args...)	do { } while (0)
+#define DRM_DEBUG_DRIVER(fmt, args...) do { } while (0)
+#define DRM_DEBUG_KMS(fmt, args...)	do { } while (0)
 #define DRM_DEBUG(fmt, arg...)		 do { } while (0)
 #define DRM_LOG(fmt, arg...)		do { } while (0)
 #define DRM_LOG_KMS(fmt, args...) do { } while (0)
@@ -786,6 +810,9 @@ struct drm_driver {
 	int (*gem_init_object) (struct drm_gem_object *obj);
 	void (*gem_free_object) (struct drm_gem_object *obj);
 
+	/* vga arb irq handler */
+	void (*vgaarb_irq)(struct drm_device *dev, bool state);
+
 	/* Driver private ops for this object */
 	struct vm_operations_struct *gem_vm_ops;
 
@@ -1417,7 +1444,7 @@ drm_gem_object_unreference(struct drm_gem_object *obj)
 
 int drm_gem_handle_create(struct drm_file *file_priv,
 			  struct drm_gem_object *obj,
-			  int *handlep);
+			  u32 *handlep);
 
 static inline void
 drm_gem_object_handle_reference(struct drm_gem_object *obj)
@@ -1443,7 +1470,7 @@ drm_gem_object_handle_unreference(struct drm_gem_object *obj)
 
 struct drm_gem_object *drm_gem_object_lookup(struct drm_device *dev,
 					     struct drm_file *filp,
-					     int handle);
+					     u32 handle);
 int drm_gem_close_ioctl(struct drm_device *dev, void *data,
 			struct drm_file *file_priv);
 int drm_gem_flink_ioctl(struct drm_device *dev, void *data,
diff --git a/include/drm/drm_cache.h b/include/drm/drm_cache.h
new file mode 100644
index 000000000000..7bfb063029d8
--- /dev/null
+++ b/include/drm/drm_cache.h
@@ -0,0 +1,38 @@
+/**************************************************************************
+ *
+ * Copyright 2009 Red Hat Inc.
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sub license, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial portions
+ * of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM,
+ * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
+ * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
+ * USE OR OTHER DEALINGS IN THE SOFTWARE.
+ *
+ *
+ **************************************************************************/
+/*
+ * Authors:
+ * Dave Airlie <airlied@redhat.com>
+ */
+
+#ifndef _DRM_CACHE_H_
+#define _DRM_CACHE_H_
+
+void drm_clflush_pages(struct page *pages[], unsigned long num_pages);
+
+#endif
diff --git a/include/drm/drm_crtc.h b/include/drm/drm_crtc.h
index 7300fb866767..b69347b8904f 100644
--- a/include/drm/drm_crtc.h
+++ b/include/drm/drm_crtc.h
@@ -259,6 +259,8 @@ struct drm_framebuffer {
 	void *fbdev;
 	u32 pseudo_palette[17];
 	struct list_head filp_head;
+	/* if you are using the helper */
+	void *helper_private;
 };
 
 struct drm_property_blob {
@@ -385,6 +387,7 @@ struct drm_crtc {
  * @get_modes: get mode list for this connector
  * @set_property: property for this connector may need update
  * @destroy: make object go away
+ * @force: notify the driver the connector is forced on
  *
  * Each CRTC may have one or more connectors attached to it.  The functions
  * below allow the core DRM code to control connectors, enumerate available modes,
@@ -399,6 +402,7 @@ struct drm_connector_funcs {
 	int (*set_property)(struct drm_connector *connector, struct drm_property *property,
 			     uint64_t val);
 	void (*destroy)(struct drm_connector *connector);
+	void (*force)(struct drm_connector *connector);
 };
 
 struct drm_encoder_funcs {
@@ -427,6 +431,13 @@ struct drm_encoder {
 	void *helper_private;
 };
 
+enum drm_connector_force {
+	DRM_FORCE_UNSPECIFIED,
+	DRM_FORCE_OFF,
+	DRM_FORCE_ON,         /* force on analog part normally */
+	DRM_FORCE_ON_DIGITAL, /* for DVI-I use digital connector */
+};
+
 /**
  * drm_connector - central DRM connector control structure
  * @crtc: CRTC this connector is currently connected to, NULL if none
@@ -476,9 +487,12 @@ struct drm_connector {
 
 	void *helper_private;
 
+	/* forced on connector */
+	enum drm_connector_force force;
 	uint32_t encoder_ids[DRM_CONNECTOR_MAX_ENCODER];
 	uint32_t force_encoder_id;
 	struct drm_encoder *encoder; /* currently active encoder */
+	void *fb_helper_private;
 };
 
 /**
@@ -572,6 +586,12 @@ struct drm_mode_config {
 	struct drm_property *tv_right_margin_property;
 	struct drm_property *tv_top_margin_property;
 	struct drm_property *tv_bottom_margin_property;
+	struct drm_property *tv_brightness_property;
+	struct drm_property *tv_contrast_property;
+	struct drm_property *tv_flicker_reduction_property;
+	struct drm_property *tv_overscan_property;
+	struct drm_property *tv_saturation_property;
+	struct drm_property *tv_hue_property;
 
 	/* Optional properties */
 	struct drm_property *scaling_mode_property;
@@ -736,4 +756,12 @@ extern int drm_mode_gamma_get_ioctl(struct drm_device *dev,
 extern int drm_mode_gamma_set_ioctl(struct drm_device *dev,
 				    void *data, struct drm_file *file_priv);
 extern bool drm_detect_hdmi_monitor(struct edid *edid);
+extern struct drm_display_mode *drm_cvt_mode(struct drm_device *dev,
+				int hdisplay, int vdisplay, int vrefresh,
+				bool reduced, bool interlaced, bool margins);
+extern struct drm_display_mode *drm_gtf_mode(struct drm_device *dev,
+				int hdisplay, int vdisplay, int vrefresh,
+				bool interlaced, int margins);
+extern int drm_add_modes_noedid(struct drm_connector *connector,
+				int hdisplay, int vdisplay);
 #endif /* __DRM_CRTC_H__ */
diff --git a/include/drm/drm_crtc_helper.h b/include/drm/drm_crtc_helper.h
index 6769ff6c1bc0..b29e20168b5f 100644
--- a/include/drm/drm_crtc_helper.h
+++ b/include/drm/drm_crtc_helper.h
@@ -39,6 +39,7 @@
 
 #include <linux/fb.h>
 
+#include "drm_fb_helper.h"
 struct drm_crtc_helper_funcs {
 	/*
 	 * Control power levels on the CRTC.  If the mode passed in is
@@ -60,6 +61,9 @@ struct drm_crtc_helper_funcs {
 	/* Move the crtc on the current fb to the given position *optional* */
 	int (*mode_set_base)(struct drm_crtc *crtc, int x, int y,
 			     struct drm_framebuffer *old_fb);
+
+	/* reload the current crtc LUT */
+	void (*load_lut)(struct drm_crtc *crtc);
 };
 
 struct drm_encoder_helper_funcs {
@@ -79,6 +83,8 @@ struct drm_encoder_helper_funcs {
 	/* detect for DAC style encoders */
 	enum drm_connector_status (*detect)(struct drm_encoder *encoder,
 					    struct drm_connector *connector);
+	/* disable encoder when not in use - more explicit than dpms off */
+	void (*disable)(struct drm_encoder *encoder);
 };
 
 struct drm_connector_helper_funcs {
@@ -98,6 +104,7 @@ extern bool drm_crtc_helper_set_mode(struct drm_crtc *crtc,
 				     int x, int y,
 				     struct drm_framebuffer *old_fb);
 extern bool drm_helper_crtc_in_use(struct drm_crtc *crtc);
+extern bool drm_helper_encoder_in_use(struct drm_encoder *encoder);
 
 extern void drm_helper_connector_dpms(struct drm_connector *connector, int mode);
 
@@ -116,10 +123,11 @@ static inline void drm_encoder_helper_add(struct drm_encoder *encoder,
 	encoder->helper_private = (void *)funcs;
 }
 
-static inline void drm_connector_helper_add(struct drm_connector *connector,
+static inline int drm_connector_helper_add(struct drm_connector *connector,
 					    const struct drm_connector_helper_funcs *funcs)
 {
 	connector->helper_private = (void *)funcs;
+	return drm_fb_helper_add_connector(connector);
 }
 
 extern int drm_helper_resume_force_mode(struct drm_device *dev);
diff --git a/include/drm/drm_encoder_slave.h b/include/drm/drm_encoder_slave.h
new file mode 100644
index 000000000000..2f65633d28a7
--- /dev/null
+++ b/include/drm/drm_encoder_slave.h
@@ -0,0 +1,162 @@
+/*
+ * Copyright (C) 2009 Francisco Jerez.
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining
+ * a copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sublicense, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial
+ * portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+ * IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE
+ * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+ * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+ * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ *
+ */
+
+#ifndef __DRM_ENCODER_SLAVE_H__
+#define __DRM_ENCODER_SLAVE_H__
+
+#include "drmP.h"
+#include "drm_crtc.h"
+
+/**
+ * struct drm_encoder_slave_funcs - Entry points exposed by a slave encoder driver
+ * @set_config:	Initialize any encoder-specific modesetting parameters.
+ *		The meaning of the @params parameter is implementation
+ *		dependent. It will usually be a structure with DVO port
+ *		data format settings or timings. It's not required for
+ *		the new parameters to take effect until the next mode
+ *		is set.
+ *
+ * Most of its members are analogous to the function pointers in
+ * &drm_encoder_helper_funcs and they can optionally be used to
+ * initialize the latter. Connector-like methods (e.g. @get_modes and
+ * @set_property) will typically be wrapped around and only be called
+ * if the encoder is the currently selected one for the connector.
+ */
+struct drm_encoder_slave_funcs {
+	void (*set_config)(struct drm_encoder *encoder,
+			   void *params);
+
+	void (*destroy)(struct drm_encoder *encoder);
+	void (*dpms)(struct drm_encoder *encoder, int mode);
+	void (*save)(struct drm_encoder *encoder);
+	void (*restore)(struct drm_encoder *encoder);
+	bool (*mode_fixup)(struct drm_encoder *encoder,
+			   struct drm_display_mode *mode,
+			   struct drm_display_mode *adjusted_mode);
+	int (*mode_valid)(struct drm_encoder *encoder,
+			  struct drm_display_mode *mode);
+	void (*mode_set)(struct drm_encoder *encoder,
+			 struct drm_display_mode *mode,
+			 struct drm_display_mode *adjusted_mode);
+
+	enum drm_connector_status (*detect)(struct drm_encoder *encoder,
+					    struct drm_connector *connector);
+	int (*get_modes)(struct drm_encoder *encoder,
+			 struct drm_connector *connector);
+	int (*create_resources)(struct drm_encoder *encoder,
+				 struct drm_connector *connector);
+	int (*set_property)(struct drm_encoder *encoder,
+			    struct drm_connector *connector,
+			    struct drm_property *property,
+			    uint64_t val);
+
+};
+
+/**
+ * struct drm_encoder_slave - Slave encoder struct
+ * @base: DRM encoder object.
+ * @slave_funcs: Slave encoder callbacks.
+ * @slave_priv: Slave encoder private data.
+ * @bus_priv: Bus specific data.
+ *
+ * A &drm_encoder_slave has two sets of callbacks, @slave_funcs and the
+ * ones in @base. The former are never actually called by the common
+ * CRTC code, it's just a convenience for splitting the encoder
+ * functions in an upper, GPU-specific layer and a (hopefully)
+ * GPU-agnostic lower layer: It's the GPU driver responsibility to
+ * call the slave methods when appropriate.
+ *
+ * drm_i2c_encoder_init() provides a way to get an implementation of
+ * this.
+ */
+struct drm_encoder_slave {
+	struct drm_encoder base;
+
+	struct drm_encoder_slave_funcs *slave_funcs;
+	void *slave_priv;
+	void *bus_priv;
+};
+#define to_encoder_slave(x) container_of((x), struct drm_encoder_slave, base)
+
+int drm_i2c_encoder_init(struct drm_device *dev,
+			 struct drm_encoder_slave *encoder,
+			 struct i2c_adapter *adap,
+			 const struct i2c_board_info *info);
+
+
+/**
+ * struct drm_i2c_encoder_driver
+ *
+ * Describes a device driver for an encoder connected to the GPU
+ * through an I2C bus. In addition to the entry points in @i2c_driver
+ * an @encoder_init function should be provided. It will be called to
+ * give the driver an opportunity to allocate any per-encoder data
+ * structures and to initialize the @slave_funcs and (optionally)
+ * @slave_priv members of @encoder.
+ */
+struct drm_i2c_encoder_driver {
+	struct i2c_driver i2c_driver;
+
+	int (*encoder_init)(struct i2c_client *client,
+			    struct drm_device *dev,
+			    struct drm_encoder_slave *encoder);
+
+};
+#define to_drm_i2c_encoder_driver(x) container_of((x),			\
+						  struct drm_i2c_encoder_driver, \
+						  i2c_driver)
+
+/**
+ * drm_i2c_encoder_get_client - Get the I2C client corresponding to an encoder
+ */
+static inline struct i2c_client *drm_i2c_encoder_get_client(struct drm_encoder *encoder)
+{
+	return (struct i2c_client *)to_encoder_slave(encoder)->bus_priv;
+}
+
+/**
+ * drm_i2c_encoder_register - Register an I2C encoder driver
+ * @owner:	Module containing the driver.
+ * @driver:	Driver to be registered.
+ */
+static inline int drm_i2c_encoder_register(struct module *owner,
+					   struct drm_i2c_encoder_driver *driver)
+{
+	return i2c_register_driver(owner, &driver->i2c_driver);
+}
+
+/**
+ * drm_i2c_encoder_unregister - Unregister an I2C encoder driver
+ * @driver:	Driver to be unregistered.
+ */
+static inline void drm_i2c_encoder_unregister(struct drm_i2c_encoder_driver *driver)
+{
+	i2c_del_driver(&driver->i2c_driver);
+}
+
+void drm_i2c_encoder_destroy(struct drm_encoder *encoder);
+
+#endif
diff --git a/include/drm/drm_fb_helper.h b/include/drm/drm_fb_helper.h
new file mode 100644
index 000000000000..58c892a2cbfa
--- /dev/null
+++ b/include/drm/drm_fb_helper.h
@@ -0,0 +1,111 @@
+/*
+ * Copyright (c) 2006-2009 Red Hat Inc.
+ * Copyright (c) 2006-2008 Intel Corporation
+ * Copyright (c) 2007 Dave Airlie <airlied@linux.ie>
+ *
+ * DRM framebuffer helper functions
+ *
+ * Permission to use, copy, modify, distribute, and sell this software and its
+ * documentation for any purpose is hereby granted without fee, provided that
+ * the above copyright notice appear in all copies and that both that copyright
+ * notice and this permission notice appear in supporting documentation, and
+ * that the name of the copyright holders not be used in advertising or
+ * publicity pertaining to distribution of the software without specific,
+ * written prior permission.  The copyright holders make no representations
+ * about the suitability of this software for any purpose.  It is provided "as
+ * is" without express or implied warranty.
+ *
+ * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
+ * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
+ * EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
+ * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
+ * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
+ * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
+ * OF THIS SOFTWARE.
+ *
+ * Authors:
+ *      Dave Airlie <airlied@linux.ie>
+ *      Jesse Barnes <jesse.barnes@intel.com>
+ */
+#ifndef DRM_FB_HELPER_H
+#define DRM_FB_HELPER_H
+
+struct drm_fb_helper_crtc {
+	uint32_t crtc_id;
+	struct drm_mode_set mode_set;
+};
+
+
+struct drm_fb_helper_funcs {
+	void (*gamma_set)(struct drm_crtc *crtc, u16 red, u16 green,
+			  u16 blue, int regno);
+	void (*gamma_get)(struct drm_crtc *crtc, u16 *red, u16 *green,
+			  u16 *blue, int regno);
+};
+
+/* mode specified on the command line */
+struct drm_fb_helper_cmdline_mode {
+	bool specified;
+	bool refresh_specified;
+	bool bpp_specified;
+	int xres, yres;
+	int bpp;
+	int refresh;
+	bool rb;
+	bool interlace;
+	bool cvt;
+	bool margins;
+};
+
+struct drm_fb_helper_connector {
+	struct drm_fb_helper_cmdline_mode cmdline_mode;
+};
+
+struct drm_fb_helper {
+	struct drm_framebuffer *fb;
+	struct drm_device *dev;
+	struct drm_display_mode *mode;
+	int crtc_count;
+	struct drm_fb_helper_crtc *crtc_info;
+	struct drm_fb_helper_funcs *funcs;
+	int conn_limit;
+	struct list_head kernel_fb_list;
+};
+
+int drm_fb_helper_single_fb_probe(struct drm_device *dev,
+				  int preferred_bpp,
+				  int (*fb_create)(struct drm_device *dev,
+						   uint32_t fb_width,
+						   uint32_t fb_height,
+						   uint32_t surface_width,
+						   uint32_t surface_height,
+						   uint32_t surface_depth,
+						   uint32_t surface_bpp,
+						   struct drm_framebuffer **fb_ptr));
+int drm_fb_helper_init_crtc_count(struct drm_fb_helper *helper, int crtc_count,
+				  int max_conn);
+void drm_fb_helper_free(struct drm_fb_helper *helper);
+int drm_fb_helper_blank(int blank, struct fb_info *info);
+int drm_fb_helper_pan_display(struct fb_var_screeninfo *var,
+			      struct fb_info *info);
+int drm_fb_helper_set_par(struct fb_info *info);
+int drm_fb_helper_check_var(struct fb_var_screeninfo *var,
+			    struct fb_info *info);
+int drm_fb_helper_setcolreg(unsigned regno,
+			    unsigned red,
+			    unsigned green,
+			    unsigned blue,
+			    unsigned transp,
+			    struct fb_info *info);
+
+void drm_fb_helper_restore(void);
+void drm_fb_helper_fill_var(struct fb_info *info, struct drm_framebuffer *fb,
+			    uint32_t fb_width, uint32_t fb_height);
+void drm_fb_helper_fill_fix(struct fb_info *info, uint32_t pitch,
+			    uint32_t depth);
+
+int drm_fb_helper_add_connector(struct drm_connector *connector);
+int drm_fb_helper_parse_command_line(struct drm_device *dev);
+int drm_fb_helper_setcmap(struct fb_cmap *cmap, struct fb_info *info);
+
+#endif
diff --git a/include/drm/drm_memory.h b/include/drm/drm_memory.h
index 63e425b5ea82..15af9b32ae42 100644
--- a/include/drm/drm_memory.h
+++ b/include/drm/drm_memory.h
@@ -44,8 +44,6 @@
 
 #if __OS_HAS_AGP
 
-#include <linux/vmalloc.h>
-
 #ifdef HAVE_PAGE_AGP
 #include <asm/agp.h>
 #else
diff --git a/include/drm/drm_mm.h b/include/drm/drm_mm.h
index f8332073d277..62329f9a42cb 100644
--- a/include/drm/drm_mm.h
+++ b/include/drm/drm_mm.h
@@ -37,6 +37,9 @@
  * Generic range manager structs
  */
 #include <linux/list.h>
+#ifdef CONFIG_DEBUG_FS
+#include <linux/seq_file.h>
+#endif
 
 struct drm_mm_node {
 	struct list_head fl_entry;
@@ -96,4 +99,8 @@ static inline struct drm_mm *drm_get_mm(struct drm_mm_node *block)
 	return block->mm;
 }
 
+#ifdef CONFIG_DEBUG_FS
+int drm_mm_dump_table(struct seq_file *m, struct drm_mm *mm);
+#endif
+
 #endif
diff --git a/include/drm/drm_mode.h b/include/drm/drm_mode.h
index ae304cc73c90..1f908416aedb 100644
--- a/include/drm/drm_mode.h
+++ b/include/drm/drm_mode.h
@@ -68,10 +68,11 @@
 #define DRM_MODE_DPMS_OFF	3
 
 /* Scaling mode options */
-#define DRM_MODE_SCALE_NON_GPU		0
-#define DRM_MODE_SCALE_FULLSCREEN	1
-#define DRM_MODE_SCALE_NO_SCALE		2
-#define DRM_MODE_SCALE_ASPECT		3
+#define DRM_MODE_SCALE_NONE		0 /* Unmodified timing (display or
+					     software can still scale) */
+#define DRM_MODE_SCALE_FULLSCREEN	1 /* Full screen, ignore aspect */
+#define DRM_MODE_SCALE_CENTER		2 /* Centered, no scaling */
+#define DRM_MODE_SCALE_ASPECT		3 /* Full screen, preserve aspect */
 
 /* Dithering mode options */
 #define DRM_MODE_DITHERING_OFF	0
@@ -141,6 +142,7 @@ struct drm_mode_get_encoder {
 #define DRM_MODE_SUBCONNECTOR_Composite	5
 #define DRM_MODE_SUBCONNECTOR_SVIDEO	6
 #define DRM_MODE_SUBCONNECTOR_Component	8
+#define DRM_MODE_SUBCONNECTOR_SCART	9
 
 #define DRM_MODE_CONNECTOR_Unknown	0
 #define DRM_MODE_CONNECTOR_VGA		1
@@ -155,6 +157,7 @@ struct drm_mode_get_encoder {
 #define DRM_MODE_CONNECTOR_DisplayPort	10
 #define DRM_MODE_CONNECTOR_HDMIA	11
 #define DRM_MODE_CONNECTOR_HDMIB	12
+#define DRM_MODE_CONNECTOR_TV		13
 
 struct drm_mode_get_connector {
 
diff --git a/include/drm/drm_pciids.h b/include/drm/drm_pciids.h
index 853508499d20..e6f3b120f51a 100644
--- a/include/drm/drm_pciids.h
+++ b/include/drm/drm_pciids.h
@@ -80,7 +80,7 @@
 	{0x1002, 0x5158, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RV200}, \
 	{0x1002, 0x5159, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RV100}, \
 	{0x1002, 0x515A, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RV100}, \
-	{0x1002, 0x515E, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RV100}, \
+	{0x1002, 0x515E, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RV100|RADEON_SINGLE_CRTC}, \
 	{0x1002, 0x5460, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RV380|RADEON_IS_MOBILITY}, \
 	{0x1002, 0x5462, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RV380|RADEON_IS_MOBILITY}, \
 	{0x1002, 0x5464, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RV380|RADEON_IS_MOBILITY}, \
@@ -113,7 +113,7 @@
 	{0x1002, 0x5962, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RV280}, \
 	{0x1002, 0x5964, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RV280}, \
 	{0x1002, 0x5965, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RV280}, \
-	{0x1002, 0x5969, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RV100}, \
+	{0x1002, 0x5969, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RV100|RADEON_SINGLE_CRTC}, \
 	{0x1002, 0x5a41, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RS400|RADEON_IS_IGP|RADEON_IS_IGPGART}, \
 	{0x1002, 0x5a42, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RS400|RADEON_IS_IGP|RADEON_IS_MOBILITY|RADEON_IS_IGPGART}, \
 	{0x1002, 0x5a61, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RS400|RADEON_IS_IGP|RADEON_IS_IGPGART}, \
@@ -552,6 +552,7 @@
 	{0x8086, 0x2e12, PCI_ANY_ID, PCI_ANY_ID, PCI_CLASS_DISPLAY_VGA << 8, 0xffff00, 0}, \
 	{0x8086, 0x2e22, PCI_ANY_ID, PCI_ANY_ID, PCI_CLASS_DISPLAY_VGA << 8, 0xffff00, 0}, \
 	{0x8086, 0x2e32, PCI_ANY_ID, PCI_ANY_ID, PCI_CLASS_DISPLAY_VGA << 8, 0xffff00, 0}, \
+	{0x8086, 0x2e42, PCI_ANY_ID, PCI_ANY_ID, PCI_CLASS_DISPLAY_VGA << 8, 0xffff00, 0}, \
 	{0x8086, 0xa001, PCI_ANY_ID, PCI_ANY_ID, PCI_CLASS_DISPLAY_VGA << 8, 0xffff00, 0}, \
 	{0x8086, 0xa011, PCI_ANY_ID, PCI_ANY_ID, PCI_CLASS_DISPLAY_VGA << 8, 0xffff00, 0}, \
 	{0x8086, 0x35e8, PCI_ANY_ID, PCI_ANY_ID, PCI_CLASS_DISPLAY_VGA << 8, 0xffff00, 0}, \
diff --git a/include/drm/drm_sysfs.h b/include/drm/drm_sysfs.h
new file mode 100644
index 000000000000..1d8e033fde67
--- /dev/null
+++ b/include/drm/drm_sysfs.h
@@ -0,0 +1,12 @@
+#ifndef _DRM_SYSFS_H_
+#define _DRM_SYSFS_H_
+
+/**
+ * This minimalistic include file is intended for users (read TTM) that
+ * don't want to include the full drmP.h file.
+ */
+
+extern int drm_class_device_register(struct device *dev);
+extern void drm_class_device_unregister(struct device *dev);
+
+#endif
diff --git a/include/drm/i915_drm.h b/include/drm/i915_drm.h
index 8e1e92583fbc..7e0cb1da92e6 100644
--- a/include/drm/i915_drm.h
+++ b/include/drm/i915_drm.h
@@ -185,6 +185,7 @@ typedef struct _drm_i915_sarea {
 #define DRM_I915_GEM_GET_APERTURE 0x23
 #define DRM_I915_GEM_MMAP_GTT	0x24
 #define DRM_I915_GET_PIPE_FROM_CRTC_ID	0x25
+#define DRM_I915_GEM_MADVISE	0x26
 
 #define DRM_IOCTL_I915_INIT		DRM_IOW( DRM_COMMAND_BASE + DRM_I915_INIT, drm_i915_init_t)
 #define DRM_IOCTL_I915_FLUSH		DRM_IO ( DRM_COMMAND_BASE + DRM_I915_FLUSH)
@@ -221,6 +222,7 @@ typedef struct _drm_i915_sarea {
 #define DRM_IOCTL_I915_GEM_GET_TILING	DRM_IOWR (DRM_COMMAND_BASE + DRM_I915_GEM_GET_TILING, struct drm_i915_gem_get_tiling)
 #define DRM_IOCTL_I915_GEM_GET_APERTURE	DRM_IOR  (DRM_COMMAND_BASE + DRM_I915_GEM_GET_APERTURE, struct drm_i915_gem_get_aperture)
 #define DRM_IOCTL_I915_GET_PIPE_FROM_CRTC_ID DRM_IOWR(DRM_COMMAND_BASE + DRM_I915_GET_PIPE_FROM_CRTC_ID, struct drm_intel_get_pipe_from_crtc_id)
+#define DRM_IOCTL_I915_GEM_MADVISE	DRM_IOWR(DRM_COMMAND_BASE + DRM_I915_GEM_MADVISE, struct drm_i915_gem_madvise)
 
 /* Allow drivers to submit batchbuffers directly to hardware, relying
  * on the security mechanisms provided by hardware.
@@ -667,4 +669,21 @@ struct drm_i915_get_pipe_from_crtc_id {
 	__u32 pipe;
 };
 
+#define I915_MADV_WILLNEED 0
+#define I915_MADV_DONTNEED 1
+#define __I915_MADV_PURGED 2 /* internal state */
+
+struct drm_i915_gem_madvise {
+	/** Handle of the buffer to change the backing store advice */
+	__u32 handle;
+
+	/* Advice: either the buffer will be needed again in the near future,
+	 *         or wont be and could be discarded under memory pressure.
+	 */
+	__u32 madv;
+
+	/** Whether the backing store still exists. */
+	__u32 retained;
+};
+
 #endif				/* _I915_DRM_H_ */
diff --git a/include/drm/radeon_drm.h b/include/drm/radeon_drm.h
index 2ba61e18fc8b..3b9932ab1756 100644
--- a/include/drm/radeon_drm.h
+++ b/include/drm/radeon_drm.h
@@ -802,11 +802,12 @@ struct drm_radeon_gem_create {
 	uint32_t	flags;
 };
 
-#define RADEON_TILING_MACRO 0x1
-#define RADEON_TILING_MICRO 0x2
-#define RADEON_TILING_SWAP  0x4
-#define RADEON_TILING_SURFACE  0x8 /* this object requires a surface
-				    * when mapped - i.e. front buffer */
+#define RADEON_TILING_MACRO       0x1
+#define RADEON_TILING_MICRO       0x2
+#define RADEON_TILING_SWAP_16BIT  0x4
+#define RADEON_TILING_SWAP_32BIT  0x8
+#define RADEON_TILING_SURFACE     0x10 /* this object requires a surface
+					* when mapped - i.e. front buffer */
 
 struct drm_radeon_gem_set_tiling {
 	uint32_t	handle;
@@ -899,6 +900,7 @@ struct drm_radeon_cs {
 #define RADEON_INFO_DEVICE_ID		0x00
 #define RADEON_INFO_NUM_GB_PIPES	0x01
 #define RADEON_INFO_NUM_Z_PIPES 	0x02
+#define RADEON_INFO_ACCEL_WORKING	0x03
 
 struct drm_radeon_info {
 	uint32_t		request;
diff --git a/include/drm/ttm/ttm_bo_api.h b/include/drm/ttm/ttm_bo_api.h
index cd22ab4b495c..491146170522 100644
--- a/include/drm/ttm/ttm_bo_api.h
+++ b/include/drm/ttm/ttm_bo_api.h
@@ -155,6 +155,7 @@ struct ttm_buffer_object {
 	 * Members constant at init.
 	 */
 
+	struct ttm_bo_global *glob;
 	struct ttm_bo_device *bdev;
 	unsigned long buffer_start;
 	enum ttm_bo_type type;
@@ -245,14 +246,15 @@ struct ttm_buffer_object {
  * premapped region.
  */
 
+#define TTM_BO_MAP_IOMEM_MASK 0x80
 struct ttm_bo_kmap_obj {
 	void *virtual;
 	struct page *page;
 	enum {
-		ttm_bo_map_iomap,
-		ttm_bo_map_vmap,
-		ttm_bo_map_kmap,
-		ttm_bo_map_premapped,
+		ttm_bo_map_iomap        = 1 | TTM_BO_MAP_IOMEM_MASK,
+		ttm_bo_map_vmap         = 2,
+		ttm_bo_map_kmap         = 3,
+		ttm_bo_map_premapped    = 4 | TTM_BO_MAP_IOMEM_MASK,
 	} bo_kmap_type;
 };
 
@@ -522,8 +524,7 @@ extern int ttm_bo_evict_mm(struct ttm_bo_device *bdev, unsigned mem_type);
 static inline void *ttm_kmap_obj_virtual(struct ttm_bo_kmap_obj *map,
 					 bool *is_iomem)
 {
-	*is_iomem = (map->bo_kmap_type == ttm_bo_map_iomap ||
-		     map->bo_kmap_type == ttm_bo_map_premapped);
+	*is_iomem = !!(map->bo_kmap_type & TTM_BO_MAP_IOMEM_MASK);
 	return map->virtual;
 }
 
diff --git a/include/drm/ttm/ttm_bo_driver.h b/include/drm/ttm/ttm_bo_driver.h
index a68829db381a..e8cd6d20aed2 100644
--- a/include/drm/ttm/ttm_bo_driver.h
+++ b/include/drm/ttm/ttm_bo_driver.h
@@ -32,6 +32,7 @@
 
 #include "ttm/ttm_bo_api.h"
 #include "ttm/ttm_memory.h"
+#include "ttm/ttm_module.h"
 #include "drm_mm.h"
 #include "linux/workqueue.h"
 #include "linux/fs.h"
@@ -161,7 +162,7 @@ struct ttm_tt {
 	long last_lomem_page;
 	uint32_t page_flags;
 	unsigned long num_pages;
-	struct ttm_bo_device *bdev;
+	struct ttm_bo_global *glob;
 	struct ttm_backend *be;
 	struct task_struct *tsk;
 	unsigned long start;
@@ -364,24 +365,73 @@ struct ttm_bo_driver {
 	void (*fault_reserve_notify)(struct ttm_buffer_object *bo);
 };
 
-#define TTM_NUM_MEM_TYPES 8
+/**
+ * struct ttm_bo_global_ref - Argument to initialize a struct ttm_bo_global.
+ */
+
+struct ttm_bo_global_ref {
+	struct ttm_global_reference ref;
+	struct ttm_mem_global *mem_glob;
+};
 
-#define TTM_BO_PRIV_FLAG_MOVING  0	/* Buffer object is moving and needs
-					   idling before CPU mapping */
-#define TTM_BO_PRIV_FLAG_MAX 1
 /**
- * struct ttm_bo_device - Buffer object driver device-specific data.
+ * struct ttm_bo_global - Buffer object driver global data.
  *
  * @mem_glob: Pointer to a struct ttm_mem_global object for accounting.
- * @driver: Pointer to a struct ttm_bo_driver struct setup by the driver.
- * @count: Current number of buffer object.
- * @pages: Current number of pinned pages.
  * @dummy_read_page: Pointer to a dummy page used for mapping requests
  * of unpopulated pages.
- * @shrink: A shrink callback object used for buffre object swap.
+ * @shrink: A shrink callback object used for buffer object swap.
  * @ttm_bo_extra_size: Extra size (sizeof(struct ttm_buffer_object) excluded)
  * used by a buffer object. This is excluding page arrays and backing pages.
  * @ttm_bo_size: This is @ttm_bo_extra_size + sizeof(struct ttm_buffer_object).
+ * @device_list_mutex: Mutex protecting the device list.
+ * This mutex is held while traversing the device list for pm options.
+ * @lru_lock: Spinlock protecting the bo subsystem lru lists.
+ * @device_list: List of buffer object devices.
+ * @swap_lru: Lru list of buffer objects used for swapping.
+ */
+
+struct ttm_bo_global {
+
+	/**
+	 * Constant after init.
+	 */
+
+	struct kobject kobj;
+	struct ttm_mem_global *mem_glob;
+	struct page *dummy_read_page;
+	struct ttm_mem_shrink shrink;
+	size_t ttm_bo_extra_size;
+	size_t ttm_bo_size;
+	struct mutex device_list_mutex;
+	spinlock_t lru_lock;
+
+	/**
+	 * Protected by device_list_mutex.
+	 */
+	struct list_head device_list;
+
+	/**
+	 * Protected by the lru_lock.
+	 */
+	struct list_head swap_lru;
+
+	/**
+	 * Internal protection.
+	 */
+	atomic_t bo_count;
+};
+
+
+#define TTM_NUM_MEM_TYPES 8
+
+#define TTM_BO_PRIV_FLAG_MOVING  0	/* Buffer object is moving and needs
+					   idling before CPU mapping */
+#define TTM_BO_PRIV_FLAG_MAX 1
+/**
+ * struct ttm_bo_device - Buffer object driver device-specific data.
+ *
+ * @driver: Pointer to a struct ttm_bo_driver struct setup by the driver.
  * @man: An array of mem_type_managers.
  * @addr_space_mm: Range manager for the device address space.
  * lru_lock: Spinlock that protects the buffer+device lru lists and
@@ -399,32 +449,21 @@ struct ttm_bo_device {
 	/*
 	 * Constant after bo device init / atomic.
 	 */
-
-	struct ttm_mem_global *mem_glob;
+	struct list_head device_list;
+	struct ttm_bo_global *glob;
 	struct ttm_bo_driver *driver;
-	struct page *dummy_read_page;
-	struct ttm_mem_shrink shrink;
-
-	size_t ttm_bo_extra_size;
-	size_t ttm_bo_size;
-
 	rwlock_t vm_lock;
+	struct ttm_mem_type_manager man[TTM_NUM_MEM_TYPES];
 	/*
 	 * Protected by the vm lock.
 	 */
-	struct ttm_mem_type_manager man[TTM_NUM_MEM_TYPES];
 	struct rb_root addr_space_rb;
 	struct drm_mm addr_space_mm;
 
 	/*
-	 * Might want to change this to one lock per manager.
-	 */
-	spinlock_t lru_lock;
-	/*
-	 * Protected by the lru lock.
+	 * Protected by the global:lru lock.
 	 */
 	struct list_head ddestroy;
-	struct list_head swap_lru;
 
 	/*
 	 * Protected by load / firstopen / lastclose /unload sync.
@@ -640,6 +679,9 @@ extern int ttm_bo_pci_offset(struct ttm_bo_device *bdev,
 			     unsigned long *bus_offset,
 			     unsigned long *bus_size);
 
+extern void ttm_bo_global_release(struct ttm_global_reference *ref);
+extern int ttm_bo_global_init(struct ttm_global_reference *ref);
+
 extern int ttm_bo_device_release(struct ttm_bo_device *bdev);
 
 /**
@@ -657,7 +699,7 @@ extern int ttm_bo_device_release(struct ttm_bo_device *bdev);
  * !0: Failure.
  */
 extern int ttm_bo_device_init(struct ttm_bo_device *bdev,
-			      struct ttm_mem_global *mem_glob,
+			      struct ttm_bo_global *glob,
 			      struct ttm_bo_driver *driver,
 			      uint64_t file_page_offset, bool need_dma32);
 
diff --git a/include/drm/ttm/ttm_memory.h b/include/drm/ttm/ttm_memory.h
index d8b8f042c4f1..6983a7cf4da4 100644
--- a/include/drm/ttm/ttm_memory.h
+++ b/include/drm/ttm/ttm_memory.h
@@ -32,6 +32,7 @@
 #include <linux/spinlock.h>
 #include <linux/wait.h>
 #include <linux/errno.h>
+#include <linux/kobject.h>
 
 /**
  * struct ttm_mem_shrink - callback to shrink TTM memory usage.
@@ -60,34 +61,33 @@ struct ttm_mem_shrink {
  * @queue: Wait queue for processes suspended waiting for memory.
  * @lock: Lock to protect the @shrink - and the memory accounting members,
  * that is, essentially the whole structure with some exceptions.
- * @emer_memory: Lowmem memory limit available for root.
- * @max_memory: Lowmem memory limit available for non-root.
- * @swap_limit: Lowmem memory limit where the shrink workqueue kicks in.
- * @used_memory: Currently used lowmem memory.
- * @used_total_memory: Currently used total (lowmem + highmem) memory.
- * @total_memory_swap_limit: Total memory limit where the shrink workqueue
- * kicks in.
- * @max_total_memory: Total memory available to non-root processes.
- * @emer_total_memory: Total memory available to root processes.
+ * @zones: Array of pointers to accounting zones.
+ * @num_zones: Number of populated entries in the @zones array.
+ * @zone_kernel: Pointer to the kernel zone.
+ * @zone_highmem: Pointer to the highmem zone if there is one.
+ * @zone_dma32: Pointer to the dma32 zone if there is one.
  *
  * Note that this structure is not per device. It should be global for all
  * graphics devices.
  */
 
+#define TTM_MEM_MAX_ZONES 2
+struct ttm_mem_zone;
 struct ttm_mem_global {
+	struct kobject kobj;
 	struct ttm_mem_shrink *shrink;
 	struct workqueue_struct *swap_queue;
 	struct work_struct work;
 	wait_queue_head_t queue;
 	spinlock_t lock;
-	uint64_t emer_memory;
-	uint64_t max_memory;
-	uint64_t swap_limit;
-	uint64_t used_memory;
-	uint64_t used_total_memory;
-	uint64_t total_memory_swap_limit;
-	uint64_t max_total_memory;
-	uint64_t emer_total_memory;
+	struct ttm_mem_zone *zones[TTM_MEM_MAX_ZONES];
+	unsigned int num_zones;
+	struct ttm_mem_zone *zone_kernel;
+#ifdef CONFIG_HIGHMEM
+	struct ttm_mem_zone *zone_highmem;
+#else
+	struct ttm_mem_zone *zone_dma32;
+#endif
 };
 
 /**
@@ -146,8 +146,13 @@ static inline void ttm_mem_unregister_shrink(struct ttm_mem_global *glob,
 extern int ttm_mem_global_init(struct ttm_mem_global *glob);
 extern void ttm_mem_global_release(struct ttm_mem_global *glob);
 extern int ttm_mem_global_alloc(struct ttm_mem_global *glob, uint64_t memory,
-				bool no_wait, bool interruptible, bool himem);
+				bool no_wait, bool interruptible);
 extern void ttm_mem_global_free(struct ttm_mem_global *glob,
-				uint64_t amount, bool himem);
+				uint64_t amount);
+extern int ttm_mem_global_alloc_page(struct ttm_mem_global *glob,
+				     struct page *page,
+				     bool no_wait, bool interruptible);
+extern void ttm_mem_global_free_page(struct ttm_mem_global *glob,
+				     struct page *page);
 extern size_t ttm_round_pot(size_t size);
 #endif
diff --git a/include/drm/ttm/ttm_module.h b/include/drm/ttm/ttm_module.h
index d1d433834e4f..cf416aee19af 100644
--- a/include/drm/ttm/ttm_module.h
+++ b/include/drm/ttm/ttm_module.h
@@ -32,6 +32,7 @@
 #define _TTM_MODULE_H_
 
 #include <linux/kernel.h>
+struct kobject;
 
 #define TTM_PFX "[TTM] "
 
@@ -54,5 +55,6 @@ extern void ttm_global_init(void);
 extern void ttm_global_release(void);
 extern int ttm_global_item_ref(struct ttm_global_reference *ref);
 extern void ttm_global_item_unref(struct ttm_global_reference *ref);
+extern struct kobject *ttm_get_kobj(void);
 
 #endif /* _TTM_MODULE_H_ */