Merge branch 'drm-for-2.6.35' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6

* 'drm-for-2.6.35' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6: (207 commits)
  drm/radeon/kms/pm/r600: select the mid clock mode for single head low profile
  drm/radeon: fix power supply kconfig interaction.
  drm/radeon/kms: record object that have been list reserved
  drm/radeon: AGP memory is only I/O if the aperture can be mapped by the CPU.
  drm/radeon/kms: don't default display priority to high on rs4xx
  drm/edid: fix typo in 1600x1200@75 mode
  drm/nouveau: fix i2c-related init table handlers
  drm/nouveau: support init table i2c device identifier 0x81
  drm/nouveau: ensure we've parsed i2c table entry for INIT_*I2C* handlers
  drm/nouveau: display error message for any failed init table opcode
  drm/nouveau: fix init table handlers to return proper error codes
  drm/nv50: support fractional feedback divider on newer chips
  drm/nv50: fix monitor detection on certain chipsets
  drm/nv50: store full dcb i2c entry from vbios
  drm/nv50: fix suspend/resume with DP outputs
  drm/nv50: output calculated crtc pll when debugging on
  drm/nouveau: dump pll limits entries when debugging is on
  drm/nouveau: bios parser fixes for eDP boards
  drm/nouveau: fix a nouveau_bo dereference after it's been destroyed
  drm/nv40: remove some completed ctxprog TODOs
  ...

10 files changed, 293 insertions, 79 deletions

diff --git a/include/drm/drmP.h b/include/drm/drmP.h
index 2f3b3a00b7a3..c1b987158dfa 100644
--- a/include/drm/drmP.h
+++ b/include/drm/drmP.h
@@ -1428,10 +1428,13 @@ extern void drm_sysfs_connector_remove(struct drm_connector *connector);
 /* Graphics Execution Manager library functions (drm_gem.c) */
 int drm_gem_init(struct drm_device *dev);
 void drm_gem_destroy(struct drm_device *dev);
+void drm_gem_object_release(struct drm_gem_object *obj);
 void drm_gem_object_free(struct kref *kref);
 void drm_gem_object_free_unlocked(struct kref *kref);
 struct drm_gem_object *drm_gem_object_alloc(struct drm_device *dev,
                                             size_t size);
+int drm_gem_object_init(struct drm_device *dev,
+                        struct drm_gem_object *obj, size_t size);
 void drm_gem_object_handle_free(struct kref *kref);
 void drm_gem_vm_open(struct vm_area_struct *vma);
 void drm_gem_vm_close(struct vm_area_struct *vma);
diff --git a/include/drm/drm_crtc.h b/include/drm/drm_crtc.h
index 1347524a8e30..93a1a31b9c2d 100644
--- a/include/drm/drm_crtc.h
+++ b/include/drm/drm_crtc.h
@@ -31,6 +31,7 @@
 #include <linux/idr.h>
 
 #include <linux/fb.h>
+#include <linux/slow-work.h>
 
 struct drm_device;
 struct drm_mode_set;
@@ -271,8 +272,6 @@ struct drm_framebuffer {
         unsigned int depth;
         int bits_per_pixel;
         int flags;
-        struct fb_info *fbdev;
-        u32 pseudo_palette[17];
         struct list_head filp_head;
         /* if you are using the helper */
         void *helper_private;
@@ -369,9 +368,6 @@ struct drm_crtc_funcs {
  * @enabled: is this CRTC enabled?
  * @x: x position on screen
  * @y: y position on screen
- * @desired_mode: new desired mode
- * @desired_x: desired x for desired_mode
- * @desired_y: desired y for desired_mode
  * @funcs: CRTC control functions
  *
  * Each CRTC may have one or more connectors associated with it.  This structure
@@ -391,8 +387,6 @@ struct drm_crtc {
         struct drm_display_mode mode;
 
         int x, y;
-        struct drm_display_mode *desired_mode;
-        int desired_x, desired_y;
         const struct drm_crtc_funcs *funcs;
 
         /* CRTC gamma size for reporting to userspace */
@@ -467,6 +461,15 @@ enum drm_connector_force {
         DRM_FORCE_ON_DIGITAL, /* for DVI-I use digital connector */
 };
 
+/* should we poll this connector for connects and disconnects */
+/* hot plug detectable */
+#define DRM_CONNECTOR_POLL_HPD (1 << 0)
+/* poll for connections */
+#define DRM_CONNECTOR_POLL_CONNECT (1 << 1)
+/* can cleanly poll for disconnections without flickering the screen */
+/* DACs should rarely do this without a lot of testing */
+#define DRM_CONNECTOR_POLL_DISCONNECT (1 << 2)
+
 /**
  * drm_connector - central DRM connector control structure
  * @crtc: CRTC this connector is currently connected to, NULL if none
@@ -511,6 +514,8 @@ struct drm_connector {
         u32 property_ids[DRM_CONNECTOR_MAX_PROPERTY];
         uint64_t property_values[DRM_CONNECTOR_MAX_PROPERTY];
 
+        uint8_t polled; /* DRM_CONNECTOR_POLL_* */
+
         /* requested DPMS state */
         int dpms;
 
@@ -521,7 +526,6 @@ struct drm_connector {
         uint32_t encoder_ids[DRM_CONNECTOR_MAX_ENCODER];
         uint32_t force_encoder_id;
         struct drm_encoder *encoder; /* currently active encoder */
-        void *fb_helper_private;
 };
 
 /**
@@ -548,16 +552,10 @@ struct drm_mode_set {
 
 /**
  * struct drm_mode_config_funcs - configure CRTCs for a given screen layout
- * @resize: adjust CRTCs as necessary for the proposed layout
- *
- * Currently only a resize hook is available.  DRM will call back into the
- * driver with a new screen width and height.  If the driver can't support
- * the proposed size, it can return false.  Otherwise it should adjust
- * the CRTC<->connector mappings as needed and update its view of the screen.
  */
 struct drm_mode_config_funcs {
         struct drm_framebuffer *(*fb_create)(struct drm_device *dev, struct drm_file *file_priv, struct drm_mode_fb_cmd *mode_cmd);
-        int (*fb_changed)(struct drm_device *dev);
+        void (*output_poll_changed)(struct drm_device *dev);
 };
 
 struct drm_mode_group {
@@ -590,14 +588,15 @@ struct drm_mode_config {
 
         struct list_head property_list;
 
-        /* in-kernel framebuffers - hung of filp_head in drm_framebuffer */
-        struct list_head fb_kernel_list;
-
         int min_width, min_height;
         int max_width, max_height;
         struct drm_mode_config_funcs *funcs;
         resource_size_t fb_base;
 
+        /* output poll support */
+        bool poll_enabled;
+        struct delayed_slow_work output_poll_slow_work;
+
         /* pointers to standard properties */
         struct list_head property_blob_list;
         struct drm_property *edid_property;
@@ -666,8 +665,6 @@ extern void drm_fb_release(struct drm_file *file_priv);
 extern int drm_mode_group_init_legacy_group(struct drm_device *dev, struct drm_mode_group *group);
 extern struct edid *drm_get_edid(struct drm_connector *connector,
                                  struct i2c_adapter *adapter);
-extern int drm_do_probe_ddc_edid(struct i2c_adapter *adapter,
-                                 unsigned char *buf, int len);
 extern int drm_add_edid_modes(struct drm_connector *connector, struct edid *edid);
 extern void drm_mode_probed_add(struct drm_connector *connector, struct drm_display_mode *mode);
 extern void drm_mode_remove(struct drm_connector *connector, struct drm_display_mode *mode);
@@ -799,8 +796,14 @@ extern struct drm_display_mode *drm_cvt_mode(struct drm_device *dev,
 extern struct drm_display_mode *drm_gtf_mode(struct drm_device *dev,
                                 int hdisplay, int vdisplay, int vrefresh,
                                 bool interlaced, int margins);
+extern struct drm_display_mode *drm_gtf_mode_complex(struct drm_device *dev,
+                                int hdisplay, int vdisplay, int vrefresh,
+                                bool interlaced, int margins, int GTF_M,
+                                int GTF_2C, int GTF_K, int GTF_2J);
 extern int drm_add_modes_noedid(struct drm_connector *connector,
                                 int hdisplay, int vdisplay);
 
 extern bool drm_edid_is_valid(struct edid *edid);
+struct drm_display_mode *drm_mode_find_dmt(struct drm_device *dev,
+                                           int hsize, int vsize, int fresh);
 #endif /* __DRM_CRTC_H__ */
diff --git a/include/drm/drm_crtc_helper.h b/include/drm/drm_crtc_helper.h
index b29e20168b5f..dc5873c21e45 100644
--- a/include/drm/drm_crtc_helper.h
+++ b/include/drm/drm_crtc_helper.h
@@ -39,7 +39,6 @@
 
 #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
@@ -96,8 +95,6 @@ struct drm_connector_helper_funcs {
 
 extern int drm_helper_probe_single_connector_modes(struct drm_connector *connector, uint32_t maxX, uint32_t maxY);
 extern void drm_helper_disable_unused_functions(struct drm_device *dev);
-extern int drm_helper_hotplug_stage_two(struct drm_device *dev);
-extern bool drm_helper_initial_config(struct drm_device *dev);
 extern int drm_crtc_helper_set_config(struct drm_mode_set *set);
 extern bool drm_crtc_helper_set_mode(struct drm_crtc *crtc,
                                      struct drm_display_mode *mode,
@@ -123,12 +120,14 @@ static inline void drm_encoder_helper_add(struct drm_encoder *encoder,
         encoder->helper_private = (void *)funcs;
 }
 
-static inline int drm_connector_helper_add(struct drm_connector *connector,
+static inline void 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);
+extern void drm_kms_helper_poll_init(struct drm_device *dev);
+extern void drm_kms_helper_poll_fini(struct drm_device *dev);
+extern void drm_helper_hpd_irq_event(struct drm_device *dev);
 #endif
diff --git a/include/drm/drm_edid.h b/include/drm/drm_edid.h
index b4209898f115..39e2cc5c7e66 100644
--- a/include/drm/drm_edid.h
+++ b/include/drm/drm_edid.h
@@ -120,7 +120,7 @@ struct detailed_non_pixel {
                 struct detailed_data_string str;
                 struct detailed_data_monitor_range range;
                 struct detailed_data_wpindex color;
-                struct std_timing timings[5];
+                struct std_timing timings[6];
                 struct cvt_timing cvt[4];
         } data;
 } __attribute__((packed));
@@ -201,7 +201,4 @@ struct edid {
 
 #define EDID_PRODUCT_ID(e) ((e)->prod_code[0] | ((e)->prod_code[1] << 8))
 
-/* define the number of Extension EDID block */
-#define DRM_MAX_EDID_EXT_NUM 4
-
 #endif /* __DRM_EDID_H__ */
diff --git a/include/drm/drm_fb_helper.h b/include/drm/drm_fb_helper.h
index 58c892a2cbfa..f0a6afc47e76 100644
--- a/include/drm/drm_fb_helper.h
+++ b/include/drm/drm_fb_helper.h
@@ -30,17 +30,12 @@
 #ifndef DRM_FB_HELPER_H
 #define DRM_FB_HELPER_H
 
+struct drm_fb_helper;
+
 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);
+        struct drm_display_mode *desired_mode;
 };
 
 /* mode specified on the command line */
@@ -57,8 +52,28 @@ struct drm_fb_helper_cmdline_mode {
         bool margins;
 };
 
+struct drm_fb_helper_surface_size {
+        u32 fb_width;
+        u32 fb_height;
+        u32 surface_width;
+        u32 surface_height;
+        u32 surface_bpp;
+        u32 surface_depth;
+};
+
+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);
+
+        int (*fb_probe)(struct drm_fb_helper *helper,
+                        struct drm_fb_helper_surface_size *sizes);
+};
+
 struct drm_fb_helper_connector {
         struct drm_fb_helper_cmdline_mode cmdline_mode;
+        struct drm_connector *connector;
 };
 
 struct drm_fb_helper {
@@ -67,24 +82,26 @@ struct drm_fb_helper {
         struct drm_display_mode *mode;
         int crtc_count;
         struct drm_fb_helper_crtc *crtc_info;
+        int connector_count;
+        struct drm_fb_helper_connector **connector_info;
         struct drm_fb_helper_funcs *funcs;
         int conn_limit;
+        struct fb_info *fbdev;
+        u32 pseudo_palette[17];
         struct list_head kernel_fb_list;
+
+        /* we got a hotplug but fbdev wasn't running the console
+           delay until next set_par */
+        bool delayed_hotplug;
 };
 
-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_single_fb_probe(struct drm_fb_helper *helper,
+                                  int preferred_bpp);
+
+int drm_fb_helper_init(struct drm_device *dev,
+                       struct drm_fb_helper *helper, int crtc_count,
+                       int max_conn);
+void drm_fb_helper_fini(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);
@@ -99,13 +116,15 @@ int drm_fb_helper_setcolreg(unsigned regno,
                             struct fb_info *info);
 
 void drm_fb_helper_restore(void);
-void drm_fb_helper_fill_var(struct fb_info *info, struct drm_framebuffer *fb,
+void drm_fb_helper_fill_var(struct fb_info *info, struct drm_fb_helper *fb_helper,
                             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);
 
+bool drm_fb_helper_hotplug_event(struct drm_fb_helper *fb_helper);
+bool drm_fb_helper_initial_config(struct drm_fb_helper *fb_helper, int bpp_sel);
+int drm_fb_helper_single_add_all_connectors(struct drm_fb_helper *fb_helper);
+
 #endif
diff --git a/include/drm/drm_fixed.h b/include/drm/drm_fixed.h
new file mode 100644
index 000000000000..4a08a664ff1f
--- /dev/null
+++ b/include/drm/drm_fixed.h
@@ -0,0 +1,67 @@
+/*
+ * Copyright 2009 Red Hat Inc.
+ *
+ * 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 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 HOLDER(S) OR AUTHOR(S) 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
+ */
+#ifndef DRM_FIXED_H
+#define DRM_FIXED_H
+
+typedef union dfixed {
+        u32 full;
+} fixed20_12;
+
+
+#define dfixed_const(A) (u32)(((A) << 12))/*  + ((B + 0.000122)*4096)) */
+#define dfixed_const_half(A) (u32)(((A) << 12) + 2048)
+#define dfixed_const_666(A) (u32)(((A) << 12) + 2731)
+#define dfixed_const_8(A) (u32)(((A) << 12) + 3277)
+#define dfixed_mul(A, B) ((u64)((u64)(A).full * (B).full + 2048) >> 12)
+#define dfixed_init(A) { .full = dfixed_const((A)) }
+#define dfixed_init_half(A) { .full = dfixed_const_half((A)) }
+#define dfixed_trunc(A) ((A).full >> 12)
+
+static inline u32 dfixed_floor(fixed20_12 A)
+{
+        u32 non_frac = dfixed_trunc(A);
+
+        return dfixed_const(non_frac);
+}
+
+static inline u32 dfixed_ceil(fixed20_12 A)
+{
+        u32 non_frac = dfixed_trunc(A);
+
+        if (A.full > dfixed_const(non_frac))
+                return dfixed_const(non_frac + 1);
+        else
+                return dfixed_const(non_frac);
+}
+
+static inline u32 dfixed_div(fixed20_12 A, fixed20_12 B)
+{
+        u64 tmp = ((u64)A.full << 13);
+
+        do_div(tmp, B.full);
+        tmp += 1;
+        tmp /= 2;
+        return lower_32_bits(tmp);
+}
+#endif
diff --git a/include/drm/radeon_drm.h b/include/drm/radeon_drm.h
index 81e614bf2dc3..3ff9fc071dfe 100644
--- a/include/drm/radeon_drm.h
+++ b/include/drm/radeon_drm.h
@@ -902,6 +902,7 @@ struct drm_radeon_cs {
 #define RADEON_INFO_NUM_GB_PIPES        0x01
 #define RADEON_INFO_NUM_Z_PIPES         0x02
 #define RADEON_INFO_ACCEL_WORKING       0x03
+#define RADEON_INFO_CRTC_FROM_ID        0x04
 
 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 81eb9f45883c..267a86c74e2e 100644
--- a/include/drm/ttm/ttm_bo_api.h
+++ b/include/drm/ttm/ttm_bo_api.h
@@ -66,6 +66,26 @@ struct ttm_placement {
         const uint32_t  *busy_placement;
 };
 
+/**
+ * struct ttm_bus_placement
+ *
+ * @addr:               mapped virtual address
+ * @base:               bus base address
+ * @is_iomem:           is this io memory ?
+ * @size:               size in byte
+ * @offset:             offset from the base address
+ *
+ * Structure indicating the bus placement of an object.
+ */
+struct ttm_bus_placement {
+        void            *addr;
+        unsigned long   base;
+        unsigned long   size;
+        unsigned long   offset;
+        bool            is_iomem;
+        bool            io_reserved;
+};
+
 
 /**
  * struct ttm_mem_reg
@@ -75,6 +95,7 @@ struct ttm_placement {
  * @num_pages: Actual size of memory region in pages.
  * @page_alignment: Page alignment.
  * @placement: Placement flags.
+ * @bus: Placement on io bus accessible to the CPU
  *
  * Structure indicating the placement and space resources used by a
  * buffer object.
@@ -87,6 +108,7 @@ struct ttm_mem_reg {
         uint32_t page_alignment;
         uint32_t mem_type;
         uint32_t placement;
+        struct ttm_bus_placement bus;
 };
 
 /**
@@ -274,6 +296,7 @@ struct ttm_bo_kmap_obj {
                 ttm_bo_map_kmap         = 3,
                 ttm_bo_map_premapped    = 4 | TTM_BO_MAP_IOMEM_MASK,
         } bo_kmap_type;
+        struct ttm_buffer_object *bo;
 };
 
 /**
@@ -313,7 +336,8 @@ extern int ttm_bo_wait(struct ttm_buffer_object *bo, bool lazy,
  * @bo: The buffer object.
  * @placement: Proposed placement for the buffer object.
  * @interruptible: Sleep interruptible if sleeping.
- * @no_wait: Return immediately if the buffer is busy.
+ * @no_wait_reserve: Return immediately if other buffers are busy.
+ * @no_wait_gpu: Return immediately if the GPU is busy.
  *
  * Changes placement and caching policy of the buffer object
  * according proposed placement.
@@ -325,7 +349,8 @@ extern int ttm_bo_wait(struct ttm_buffer_object *bo, bool lazy,
  */
 extern int ttm_bo_validate(struct ttm_buffer_object *bo,
                                 struct ttm_placement *placement,
-                                bool interruptible, bool no_wait);
+                                bool interruptible, bool no_wait_reserve,
+                                bool no_wait_gpu);
 
 /**
  * ttm_bo_unref
@@ -337,6 +362,23 @@ extern int ttm_bo_validate(struct ttm_buffer_object *bo,
 extern void ttm_bo_unref(struct ttm_buffer_object **bo);
 
 /**
+ * ttm_bo_lock_delayed_workqueue
+ *
+ * Prevent the delayed workqueue from running.
+ * Returns
+ * True if the workqueue was queued at the time
+ */
+extern int ttm_bo_lock_delayed_workqueue(struct ttm_bo_device *bdev);
+
+/**
+ * ttm_bo_unlock_delayed_workqueue
+ *
+ * Allows the delayed workqueue to run.
+ */
+extern void ttm_bo_unlock_delayed_workqueue(struct ttm_bo_device *bdev,
+                                            int resched);
+
+/**
  * ttm_bo_synccpu_write_grab
  *
  * @bo: The buffer object:
diff --git a/include/drm/ttm/ttm_bo_driver.h b/include/drm/ttm/ttm_bo_driver.h
index 6b9db917e717..0ea602da43e7 100644
--- a/include/drm/ttm/ttm_bo_driver.h
+++ b/include/drm/ttm/ttm_bo_driver.h
@@ -176,8 +176,6 @@ struct ttm_tt {
 
 #define TTM_MEMTYPE_FLAG_FIXED         (1 << 0) /* Fixed (on-card) PCI memory */
 #define TTM_MEMTYPE_FLAG_MAPPABLE      (1 << 1) /* Memory mappable */
-#define TTM_MEMTYPE_FLAG_NEEDS_IOREMAP (1 << 2) /* Fixed memory needs ioremap
-                                                   before kernel access. */
 #define TTM_MEMTYPE_FLAG_CMA           (1 << 3) /* Can't map aperture */
 
 /**
@@ -189,13 +187,6 @@ struct ttm_tt {
  * managed by this memory type.
  * @gpu_offset: If used, the GPU offset of the first managed page of
  * fixed memory or the first managed location in an aperture.
- * @io_offset: The io_offset of the first managed page of IO memory or
- * the first managed location in an aperture. For TTM_MEMTYPE_FLAG_CMA
- * memory, this should be set to NULL.
- * @io_size: The size of a managed IO region (fixed memory or aperture).
- * @io_addr: Virtual kernel address if the io region is pre-mapped. For
- * TTM_MEMTYPE_FLAG_NEEDS_IOREMAP there is no pre-mapped io map and
- * @io_addr should be set to NULL.
  * @size: Size of the managed region.
  * @available_caching: A mask of available caching types, TTM_PL_FLAG_XX,
  * as defined in ttm_placement_common.h
@@ -221,9 +212,6 @@ struct ttm_mem_type_manager {
         bool use_type;
         uint32_t flags;
         unsigned long gpu_offset;
-        unsigned long io_offset;
-        unsigned long io_size;
-        void *io_addr;
         uint64_t size;
         uint32_t available_caching;
         uint32_t default_caching;
@@ -311,7 +299,8 @@ struct ttm_bo_driver {
          */
         int (*move) (struct ttm_buffer_object *bo,
                      bool evict, bool interruptible,
-                     bool no_wait, struct ttm_mem_reg *new_mem);
+                     bool no_wait_reserve, bool no_wait_gpu,
+                     struct ttm_mem_reg *new_mem);
 
         /**
          * struct ttm_bo_driver_member verify_access
@@ -351,12 +340,21 @@ struct ttm_bo_driver {
                             struct ttm_mem_reg *new_mem);
         /* notify the driver we are taking a fault on this BO
          * and have reserved it */
-        void (*fault_reserve_notify)(struct ttm_buffer_object *bo);
+        int (*fault_reserve_notify)(struct ttm_buffer_object *bo);
 
         /**
          * notify the driver that we're about to swap out this bo
          */
         void (*swap_notify) (struct ttm_buffer_object *bo);
+
+        /**
+         * Driver callback on when mapping io memory (for bo_move_memcpy
+         * for instance). TTM will take care to call io_mem_free whenever
+         * the mapping is not use anymore. io_mem_reserve & io_mem_free
+         * are balanced.
+         */
+        int (*io_mem_reserve)(struct ttm_bo_device *bdev, struct ttm_mem_reg *mem);
+        void (*io_mem_free)(struct ttm_bo_device *bdev, struct ttm_mem_reg *mem);
 };
 
 /**
@@ -633,7 +631,8 @@ extern bool ttm_mem_reg_is_pci(struct ttm_bo_device *bdev,
  * @proposed_placement: Proposed new placement for the buffer object.
  * @mem: A struct ttm_mem_reg.
  * @interruptible: Sleep interruptible when sliping.
- * @no_wait: Don't sleep waiting for space to become available.
+ * @no_wait_reserve: Return immediately if other buffers are busy.
+ * @no_wait_gpu: Return immediately if the GPU is busy.
  *
  * Allocate memory space for the buffer object pointed to by @bo, using
  * the placement flags in @mem, potentially evicting other idle buffer objects.
@@ -647,7 +646,8 @@ extern bool ttm_mem_reg_is_pci(struct ttm_bo_device *bdev,
 extern int ttm_bo_mem_space(struct ttm_buffer_object *bo,
                                 struct ttm_placement *placement,
                                 struct ttm_mem_reg *mem,
-                                bool interruptible, bool no_wait);
+                                bool interruptible,
+                                bool no_wait_reserve, bool no_wait_gpu);
 /**
  * ttm_bo_wait_for_cpu
  *
@@ -682,6 +682,11 @@ extern int ttm_bo_pci_offset(struct ttm_bo_device *bdev,
                              unsigned long *bus_offset,
                              unsigned long *bus_size);
 
+extern int ttm_mem_io_reserve(struct ttm_bo_device *bdev,
+                                struct ttm_mem_reg *mem);
+extern void ttm_mem_io_free(struct ttm_bo_device *bdev,
+                                struct ttm_mem_reg *mem);
+
 extern void ttm_bo_global_release(struct ttm_global_reference *ref);
 extern int ttm_bo_global_init(struct ttm_global_reference *ref);
 
@@ -798,7 +803,8 @@ extern int ttm_bo_wait_unreserved(struct ttm_buffer_object *bo,
  *
  * @bo: A pointer to a struct ttm_buffer_object.
  * @evict: 1: This is an eviction. Don't try to pipeline.
- * @no_wait: Never sleep, but rather return with -EBUSY.
+ * @no_wait_reserve: Return immediately if other buffers are busy.
+ * @no_wait_gpu: Return immediately if the GPU is busy.
  * @new_mem: struct ttm_mem_reg indicating where to move.
  *
  * Optimized move function for a buffer object with both old and
@@ -812,15 +818,16 @@ extern int ttm_bo_wait_unreserved(struct ttm_buffer_object *bo,
  */
 
 extern int ttm_bo_move_ttm(struct ttm_buffer_object *bo,
-                           bool evict, bool no_wait,
-                           struct ttm_mem_reg *new_mem);
+                           bool evict, bool no_wait_reserve,
+                           bool no_wait_gpu, struct ttm_mem_reg *new_mem);
 
 /**
  * ttm_bo_move_memcpy
  *
  * @bo: A pointer to a struct ttm_buffer_object.
  * @evict: 1: This is an eviction. Don't try to pipeline.
- * @no_wait: Never sleep, but rather return with -EBUSY.
+ * @no_wait_reserve: Return immediately if other buffers are busy.
+ * @no_wait_gpu: Return immediately if the GPU is busy.
  * @new_mem: struct ttm_mem_reg indicating where to move.
  *
  * Fallback move function for a mappable buffer object in mappable memory.
@@ -834,8 +841,8 @@ extern int ttm_bo_move_ttm(struct ttm_buffer_object *bo,
  */
 
 extern int ttm_bo_move_memcpy(struct ttm_buffer_object *bo,
-                              bool evict,
-                              bool no_wait, struct ttm_mem_reg *new_mem);
+                              bool evict, bool no_wait_reserve,
+                              bool no_wait_gpu, struct ttm_mem_reg *new_mem);
 
 /**
  * ttm_bo_free_old_node
@@ -854,7 +861,8 @@ extern void ttm_bo_free_old_node(struct ttm_buffer_object *bo);
  * @sync_obj_arg: An argument to pass to the sync object idle / wait
  * functions.
  * @evict: This is an evict move. Don't return until the buffer is idle.
- * @no_wait: Never sleep, but rather return with -EBUSY.
+ * @no_wait_reserve: Return immediately if other buffers are busy.
+ * @no_wait_gpu: Return immediately if the GPU is busy.
  * @new_mem: struct ttm_mem_reg indicating where to move.
  *
  * Accelerated move function to be called when an accelerated move
@@ -868,7 +876,8 @@ extern void ttm_bo_free_old_node(struct ttm_buffer_object *bo);
 extern int ttm_bo_move_accel_cleanup(struct ttm_buffer_object *bo,
                                      void *sync_obj,
                                      void *sync_obj_arg,
-                                     bool evict, bool no_wait,
+                                     bool evict, bool no_wait_reserve,
+                                     bool no_wait_gpu,
                                      struct ttm_mem_reg *new_mem);
 /**
  * ttm_io_prot
diff --git a/include/drm/ttm/ttm_page_alloc.h b/include/drm/ttm/ttm_page_alloc.h
new file mode 100644
index 000000000000..8bb4de567b2c
--- /dev/null
+++ b/include/drm/ttm/ttm_page_alloc.h
@@ -0,0 +1,74 @@
+/*
+ * Copyright (c) Red Hat Inc.
+
+ * 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 AUTHORS OR COPYRIGHT HOLDERS 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>
+ *          Jerome Glisse <jglisse@redhat.com>
+ */
+#ifndef TTM_PAGE_ALLOC
+#define TTM_PAGE_ALLOC
+
+#include "ttm_bo_driver.h"
+#include "ttm_memory.h"
+
+/**
+ * Get count number of pages from pool to pages list.
+ *
+ * @pages: heado of empty linked list where pages are filled.
+ * @flags: ttm flags for page allocation.
+ * @cstate: ttm caching state for the page.
+ * @count: number of pages to allocate.
+ */
+int ttm_get_pages(struct list_head *pages,
+                  int flags,
+                  enum ttm_caching_state cstate,
+                  unsigned count);
+/**
+ * Put linked list of pages to pool.
+ *
+ * @pages: list of pages to free.
+ * @page_count: number of pages in the list. Zero can be passed for unknown
+ * count.
+ * @flags: ttm flags for page allocation.
+ * @cstate: ttm caching state.
+ */
+void ttm_put_pages(struct list_head *pages,
+                   unsigned page_count,
+                   int flags,
+                   enum ttm_caching_state cstate);
+/**
+ * Initialize pool allocator.
+ *
+ * Pool allocator is internaly reference counted so it can be initialized
+ * multiple times but ttm_page_alloc_fini has to be called same number of
+ * times.
+ */
+int ttm_page_alloc_init(struct ttm_mem_global *glob, unsigned max_pages);
+/**
+ * Free pool allocator.
+ */
+void ttm_page_alloc_fini(void);
+
+/**
+ * Output the state of pools to debugfs file
+ */
+extern int ttm_page_alloc_debugfs(struct seq_file *m, void *data);
+#endif