WebSVN – Kolibri OS – Path Comparison – / – /drivers/include/ Rev 4064 and /drivers/include/ Rev 4065

Regard whitespace Rev 4064 → Rev 4065

 /drivers/include/drm/drmP.h
 ,6 → 388,7
         spinlock_t read_lock;
         spinlock_t write_lock;
 };
+#endif
 struct drm_freelist {
         int initialized;               /**< Freelist in use */
 ,7 → 401,6
         atomic_t wfh;                  /**< If waiting for high mark */
         spinlock_t lock;
 };
-#endif
 typedef struct drm_dma_handle {
         dma_addr_t busaddr;
 ,7 → 408,6
         size_t size;
 } drm_dma_handle_t;
-#if 0
 /**
  * Buffer entry.  There is one of this for each buffer size order.
  */
 ,7 → 437,6
         struct list_head head;
         struct mutex lock;
 };
-#endif
 /** File private data */
 struct drm_file {
 ,7 → 1025,7
 struct drm_info_node {
         struct list_head list;
         struct drm_minor *minor;
-        struct drm_info_list *info_ent;
+        const struct drm_info_list *info_ent;
         struct dentry *dent;
 };
 ,12 → 1224,6
 #if 0
-#ifdef __alpha__
-#define drm_get_pci_domain(dev) dev->hose->index
-#else
-#define drm_get_pci_domain(dev) 0
-#endif
 #if __OS_HAS_AGP
 static inline int drm_core_has_AGP(struct drm_device *dev)
 {
 ,39 → 1238,28
 {
         return drm_core_check_feature(dev, DRIVER_USE_MTRR);
 }
+#else
+#define drm_core_has_MTRR(dev) (0)
+#endif
-#define DRM_MTRR_WC             MTRR_TYPE_WRCOMB
-static inline int drm_mtrr_add(unsigned long offset, unsigned long size,
-                               unsigned int flags)
+static inline void drm_device_set_unplugged(struct drm_device *dev)
 {
-        return mtrr_add(offset, size, flags, 1);
+        smp_wmb();
+        atomic_set(&dev->unplugged, 1);
 }
-static inline int drm_mtrr_del(int handle, unsigned long offset,
-                               unsigned long size, unsigned int flags)
+static inline int drm_device_is_unplugged(struct drm_device *dev)
 {
-        return mtrr_del(handle, offset, size);
+        int ret = atomic_read(&dev->unplugged);
+        smp_rmb();
+        return ret;
 }
-#else
-#define drm_core_has_MTRR(dev) (0)
-#define DRM_MTRR_WC             0
-static inline int drm_mtrr_add(unsigned long offset, unsigned long size,
-                               unsigned int flags)
+static inline bool drm_modeset_is_locked(struct drm_device *dev)
 {
-        return 0;
+        return mutex_is_locked(&dev->mode_config.mutex);
 }
-static inline int drm_mtrr_del(int handle, unsigned long offset,
-                               unsigned long size, unsigned int flags)
-{
-        return 0;
-}
-#endif
 /******************************************************************/
 /** \name Internal function definitions */
 /*@{*/
 ,8 → 1509,7
 extern struct drm_local_map *drm_getsarea(struct drm_device *dev);
                                 /* Proc support (drm_proc.h) */
-extern int drm_proc_init(struct drm_minor *minor, int minor_id,
-                         struct proc_dir_entry *root);
+extern int drm_proc_init(struct drm_minor *minor, struct proc_dir_entry *root);
 extern int drm_proc_cleanup(struct drm_minor *minor, struct proc_dir_entry *root);
                                 /* Debugfs support */

 /drivers/include/drm/drm_crtc.h
 ,6 → 339,9
         /* cursor controls */
         int (*cursor_set)(struct drm_crtc *crtc, struct drm_file *file_priv,
                           uint32_t handle, uint32_t width, uint32_t height);
+        int (*cursor_set2)(struct drm_crtc *crtc, struct drm_file *file_priv,
+                           uint32_t handle, uint32_t width, uint32_t height,
+                           int32_t hot_x, int32_t hot_y);
         int (*cursor_move)(struct drm_crtc *crtc, int x, int y);
         /* Set gamma on the CRTC */
 ,6 → 412,10
         /* framebuffer the connector is currently bound to */
         struct drm_framebuffer *fb;
+        /* Temporary tracking of the old fb while a modeset is ongoing. Used
+         * by drm_mode_set_config_internal to implement correct refcounting. */
+        struct drm_framebuffer *old_fb;
         bool enabled;
         /* Requested mode from modesetting. */
 ,11 → 661,7
  * @format_count: number of formats supported
  * @crtc: currently bound CRTC
  * @fb: currently bound fb
- * @gamma_size: size of gamma table
- * @gamma_store: gamma correction table
- * @enabled: enabled flag
  * @funcs: helper functions
- * @helper_private: storage for drver layer
  * @properties: property tracking for this plane
  */
 struct drm_plane {
 ,14 → 677,7
         struct drm_crtc *crtc;
         struct drm_framebuffer *fb;
-        /* CRTC gamma size for reporting to userspace */
-        uint32_t gamma_size;
-        uint16_t *gamma_store;
-        bool enabled;
         const struct drm_plane_funcs *funcs;
-        void *helper_private;
         struct drm_object_properties properties;
 };
 ,15 → 890,17
                           const uint32_t *formats, uint32_t format_count,
                           bool priv);
 extern void drm_plane_cleanup(struct drm_plane *plane);
+extern void drm_plane_force_disable(struct drm_plane *plane);
 extern void drm_encoder_cleanup(struct drm_encoder *encoder);
-extern char *drm_get_connector_name(struct drm_connector *connector);
-extern char *drm_get_dpms_name(int val);
-extern char *drm_get_dvi_i_subconnector_name(int val);
-extern char *drm_get_dvi_i_select_name(int val);
-extern char *drm_get_tv_subconnector_name(int val);
-extern char *drm_get_tv_select_name(int val);
+extern const char *drm_get_connector_name(const struct drm_connector *connector);
+extern const char *drm_get_connector_status_name(enum drm_connector_status status);
+extern const char *drm_get_dpms_name(int val);
+extern const char *drm_get_dvi_i_subconnector_name(int val);
+extern const char *drm_get_dvi_i_select_name(int val);
+extern const char *drm_get_tv_subconnector_name(int val);
+extern const char *drm_get_tv_select_name(int val);
 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 bool drm_probe_ddc(struct i2c_adapter *adapter);
 ,7 → 992,7
 extern int drm_mode_create_scaling_mode_property(struct drm_device *dev);
 extern int drm_mode_create_dithering_property(struct drm_device *dev);
 extern int drm_mode_create_dirty_info_property(struct drm_device *dev);
-extern char *drm_get_encoder_name(struct drm_encoder *encoder);
+extern const char *drm_get_encoder_name(const struct drm_encoder *encoder);
 extern int drm_mode_connector_attach_encoder(struct drm_connector *connector,
                                              struct drm_encoder *encoder);
 ,6 → 1020,8
                                void *data, struct drm_file *file_priv);
 extern int drm_mode_cursor_ioctl(struct drm_device *dev,
                                 void *data, struct drm_file *file_priv);
+extern int drm_mode_cursor2_ioctl(struct drm_device *dev,
+                                void *data, struct drm_file *file_priv);
 extern int drm_mode_addfb(struct drm_device *dev,
                           void *data, struct drm_file *file_priv);
 extern int drm_mode_addfb2(struct drm_device *dev,
 ,5 → 1094,6
 extern int drm_format_plane_cpp(uint32_t format, int plane);
 extern int drm_format_horz_chroma_subsampling(uint32_t format);
 extern int drm_format_vert_chroma_subsampling(uint32_t format);
+extern const char *drm_get_format_name(uint32_t format);
 #endif /* __DRM_CRTC_H__ */

 /drivers/include/drm/drm_fixed.h
 ,6 → 20,7
  * OTHER DEALINGS IN THE SOFTWARE.
  *
  * Authors: Dave Airlie
+ *          Christian Konig
  */
 #ifndef DRM_FIXED_H
 #define DRM_FIXED_H
 ,4 → 66,95
         tmp /= 2;
         return lower_32_bits(tmp);
 }
+#define DRM_FIXED_POINT         32
+#define DRM_FIXED_ONE           (1ULL << DRM_FIXED_POINT)
+#define DRM_FIXED_DECIMAL_MASK  (DRM_FIXED_ONE - 1)
+#define DRM_FIXED_DIGITS_MASK   (~DRM_FIXED_DECIMAL_MASK)
+static inline s64 drm_int2fixp(int a)
+{
+        return ((s64)a) << DRM_FIXED_POINT;
+}
+static inline int drm_fixp2int(int64_t a)
+{
+        return ((s64)a) >> DRM_FIXED_POINT;
+}
+static inline unsigned drm_fixp_msbset(int64_t a)
+{
+        unsigned shift, sign = (a >> 63) & 1;
+        for (shift = 62; shift > 0; --shift)
+                if (((a >> shift) & 1) != sign)
+                        return shift;
+        return 0;
+}
+static inline s64 drm_fixp_mul(s64 a, s64 b)
+{
+        unsigned shift = drm_fixp_msbset(a) + drm_fixp_msbset(b);
+        s64 result;
+        if (shift > 61) {
+                shift = shift - 61;
+                a >>= (shift >> 1) + (shift & 1);
+                b >>= shift >> 1;
+        } else
+                shift = 0;
+        result = a * b;
+        if (shift > DRM_FIXED_POINT)
+                return result << (shift - DRM_FIXED_POINT);
+        if (shift < DRM_FIXED_POINT)
+                return result >> (DRM_FIXED_POINT - shift);
+        return result;
+}
+static inline s64 drm_fixp_div(s64 a, s64 b)
+{
+        unsigned shift = 62 - drm_fixp_msbset(a);
+        s64 result;
+        a <<= shift;
+        if (shift < DRM_FIXED_POINT)
+                b >>= (DRM_FIXED_POINT - shift);
+        result = div64_s64(a, b);
+        if (shift > DRM_FIXED_POINT)
+                return result >> (shift - DRM_FIXED_POINT);
+        return result;
+}
+static inline s64 drm_fixp_exp(s64 x)
+{
+        s64 tolerance = div64_s64(DRM_FIXED_ONE, 1000000);
+        s64 sum = DRM_FIXED_ONE, term, y = x;
+        u64 count = 1;
+        if (x < 0)
+                y = -1 * x;
+        term = y;
+        while (term >= tolerance) {
+                sum = sum + term;
+                count = count + 1;
+                term = drm_fixp_mul(term, div64_s64(y, count));
+        }
+        if (x < 0)
+                sum = drm_fixp_div(DRM_FIXED_ONE, sum);
+        return sum;
+}
 #endif

 /drivers/include/drm/drm_memory.h
 ,0 → 1,57
+/**
+ * \file drm_memory.h
+ * Memory management wrappers for DRM
+ *
+ * \author Rickard E. (Rik) Faith <faith@valinux.com>
+ * \author Gareth Hughes <gareth@valinux.com>
+ */
+/*
+ * Created: Thu Feb  4 14:00:34 1999 by faith@valinux.com
+ *
+ * Copyright 1999 Precision Insight, Inc., Cedar Park, Texas.
+ * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California.
+ * 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
+ * VA LINUX SYSTEMS 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.
+ */
+#include <drm/drmP.h>
+/**
+ * Cut down version of drm_memory_debug.h, which used to be called
+ * drm_memory.h.
+ */
+#if __OS_HAS_AGP
+#ifdef HAVE_PAGE_AGP
+#include <asm/agp.h>
+#else
+# ifdef __powerpc__
+#  define PAGE_AGP      __pgprot(_PAGE_KERNEL | _PAGE_NO_CACHE)
+# else
+#  define PAGE_AGP      PAGE_KERNEL
+# endif
+#endif
+#else                           /* __OS_HAS_AGP */
+#endif

 /drivers/include/drm/drm_mm.h
 ,17 → 177,6
         return drm_mm_get_block_range_generic(parent, size, alignment, 0,
                                               start, end, 0);
 }
-static inline struct drm_mm_node *drm_mm_get_color_block_range(
-                                                struct drm_mm_node *parent,
-                                                unsigned long size,
-                                                unsigned alignment,
-                                                unsigned long color,
-                                                unsigned long start,
-                                                unsigned long end)
-{
-        return drm_mm_get_block_range_generic(parent, size, alignment, color,
-                                                start, end, 0);
-}
 static inline struct drm_mm_node *drm_mm_get_block_atomic_range(
                                                 struct drm_mm_node *parent,
                                                 unsigned long size,
 ,28 → 244,9
         return drm_mm_search_free_in_range_generic(mm, size, alignment, 0,
                                                    start, end, best_match);
 }
-static inline struct drm_mm_node *drm_mm_search_free_color(const struct drm_mm *mm,
-                                                           unsigned long size,
-                                                           unsigned alignment,
-                                                           unsigned long color,
-                                                           bool best_match)
-{
-        return drm_mm_search_free_generic(mm,size, alignment, color, best_match);
-}
-static inline  struct drm_mm_node *drm_mm_search_free_in_range_color(
-                                                const struct drm_mm *mm,
-                                                unsigned long size,
-                                                unsigned alignment,
-                                                unsigned long color,
+extern void drm_mm_init(struct drm_mm *mm,
                                                 unsigned long start,
-                                                unsigned long end,
-                                                bool best_match)
-{
-        return drm_mm_search_free_in_range_generic(mm, size, alignment, color,
-                                                   start, end, best_match);
-}
-extern int drm_mm_init(struct drm_mm *mm,
-                       unsigned long start,
                        unsigned long size);
 extern void drm_mm_takedown(struct drm_mm *mm);
 extern int drm_mm_clean(struct drm_mm *mm);

 /drivers/include/drm/drm_pciids.h
 ,6 → 152,14
         {0x1002, 0x6621, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_OLAND|RADEON_IS_MOBILITY|RADEON_NEW_MEMMAP}, \
         {0x1002, 0x6623, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_OLAND|RADEON_IS_MOBILITY|RADEON_NEW_MEMMAP}, \
         {0x1002, 0x6631, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_OLAND|RADEON_NEW_MEMMAP}, \
+        {0x1002, 0x6640, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_BONAIRE|RADEON_IS_MOBILITY|RADEON_NEW_MEMMAP}, \
+        {0x1002, 0x6641, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_BONAIRE|RADEON_IS_MOBILITY|RADEON_NEW_MEMMAP}, \
+        {0x1002, 0x6649, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_BONAIRE|RADEON_NEW_MEMMAP}, \
+        {0x1002, 0x6650, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_BONAIRE|RADEON_NEW_MEMMAP}, \
+        {0x1002, 0x6651, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_BONAIRE|RADEON_NEW_MEMMAP}, \
+        {0x1002, 0x6658, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_BONAIRE|RADEON_NEW_MEMMAP}, \
+        {0x1002, 0x665c, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_BONAIRE|RADEON_NEW_MEMMAP}, \
+        {0x1002, 0x665d, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_BONAIRE|RADEON_NEW_MEMMAP}, \
         {0x1002, 0x6660, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_HAINAN|RADEON_IS_MOBILITY|RADEON_NEW_MEMMAP}, \
         {0x1002, 0x6663, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_HAINAN|RADEON_IS_MOBILITY|RADEON_NEW_MEMMAP}, \
         {0x1002, 0x6664, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_HAINAN|RADEON_IS_MOBILITY|RADEON_NEW_MEMMAP}, \
 ,6 → 588,22
         {0x1002, 0x9808, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_PALM|RADEON_NEW_MEMMAP|RADEON_IS_IGP}, \
         {0x1002, 0x9809, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_PALM|RADEON_NEW_MEMMAP|RADEON_IS_IGP}, \
         {0x1002, 0x980A, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_PALM|RADEON_NEW_MEMMAP|RADEON_IS_IGP}, \
+        {0x1002, 0x9830, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_KABINI|RADEON_IS_MOBILITY|RADEON_NEW_MEMMAP|RADEON_IS_IGP}, \
+        {0x1002, 0x9831, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_KABINI|RADEON_NEW_MEMMAP|RADEON_IS_IGP}, \
+        {0x1002, 0x9832, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_KABINI|RADEON_IS_MOBILITY|RADEON_NEW_MEMMAP|RADEON_IS_IGP}, \
+        {0x1002, 0x9833, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_KABINI|RADEON_NEW_MEMMAP|RADEON_IS_IGP}, \
+        {0x1002, 0x9834, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_KABINI|RADEON_IS_MOBILITY|RADEON_NEW_MEMMAP|RADEON_IS_IGP}, \
+        {0x1002, 0x9835, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_KABINI|RADEON_NEW_MEMMAP|RADEON_IS_IGP}, \
+        {0x1002, 0x9836, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_KABINI|RADEON_IS_MOBILITY|RADEON_NEW_MEMMAP|RADEON_IS_IGP}, \
+        {0x1002, 0x9837, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_KABINI|RADEON_NEW_MEMMAP|RADEON_IS_IGP}, \
+        {0x1002, 0x9838, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_KABINI|RADEON_IS_MOBILITY|RADEON_NEW_MEMMAP|RADEON_IS_IGP}, \
+        {0x1002, 0x9839, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_KABINI|RADEON_IS_MOBILITY|RADEON_NEW_MEMMAP|RADEON_IS_IGP}, \
+        {0x1002, 0x983a, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_KABINI|RADEON_NEW_MEMMAP|RADEON_IS_IGP}, \
+        {0x1002, 0x983b, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_KABINI|RADEON_IS_MOBILITY|RADEON_NEW_MEMMAP|RADEON_IS_IGP}, \
+        {0x1002, 0x983c, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_KABINI|RADEON_NEW_MEMMAP|RADEON_IS_IGP}, \
+        {0x1002, 0x983d, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_KABINI|RADEON_NEW_MEMMAP|RADEON_IS_IGP}, \
+        {0x1002, 0x983e, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_KABINI|RADEON_NEW_MEMMAP|RADEON_IS_IGP}, \
+        {0x1002, 0x983f, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_KABINI|RADEON_NEW_MEMMAP|RADEON_IS_IGP}, \
         {0x1002, 0x9900, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_ARUBA|RADEON_IS_MOBILITY|RADEON_NEW_MEMMAP|RADEON_IS_IGP}, \
         {0x1002, 0x9901, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_ARUBA|RADEON_NEW_MEMMAP|RADEON_IS_IGP}, \
         {0x1002, 0x9903, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_ARUBA|RADEON_IS_MOBILITY|RADEON_NEW_MEMMAP|RADEON_IS_IGP}, \

 /drivers/include/drm/drm_rect.h
 ,0 → 1,167
+/*
+ * Copyright (C) 2011-2013 Intel Corporation
+ *
+ * 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 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.
+ */
+#ifndef DRM_RECT_H
+#define DRM_RECT_H
+/**
+ * DOC: rect utils
+ *
+ * Utility functions to help manage rectangular areas for
+ * clipping, scaling, etc. calculations.
+ */
+/**
+ * struct drm_rect - two dimensional rectangle
+ * @x1: horizontal starting coordinate (inclusive)
+ * @x2: horizontal ending coordinate (exclusive)
+ * @y1: vertical starting coordinate (inclusive)
+ * @y2: vertical ending coordinate (exclusive)
+ */
+struct drm_rect {
+        int x1, y1, x2, y2;
+};
+/**
+ * drm_rect_adjust_size - adjust the size of the rectangle
+ * @r: rectangle to be adjusted
+ * @dw: horizontal adjustment
+ * @dh: vertical adjustment
+ *
+ * Change the size of rectangle @r by @dw in the horizontal direction,
+ * and by @dh in the vertical direction, while keeping the center
+ * of @r stationary.
+ *
+ * Positive @dw and @dh increase the size, negative values decrease it.
+ */
+static inline void drm_rect_adjust_size(struct drm_rect *r, int dw, int dh)
+{
+        r->x1 -= dw >> 1;
+        r->y1 -= dh >> 1;
+        r->x2 += (dw + 1) >> 1;
+        r->y2 += (dh + 1) >> 1;
+}
+/**
+ * drm_rect_translate - translate the rectangle
+ * @r: rectangle to be tranlated
+ * @dx: horizontal translation
+ * @dy: vertical translation
+ *
+ * Move rectangle @r by @dx in the horizontal direction,
+ * and by @dy in the vertical direction.
+ */
+static inline void drm_rect_translate(struct drm_rect *r, int dx, int dy)
+{
+        r->x1 += dx;
+        r->y1 += dy;
+        r->x2 += dx;
+        r->y2 += dy;
+}
+/**
+ * drm_rect_downscale - downscale a rectangle
+ * @r: rectangle to be downscaled
+ * @horz: horizontal downscale factor
+ * @vert: vertical downscale factor
+ *
+ * Divide the coordinates of rectangle @r by @horz and @vert.
+ */
+static inline void drm_rect_downscale(struct drm_rect *r, int horz, int vert)
+{
+        r->x1 /= horz;
+        r->y1 /= vert;
+        r->x2 /= horz;
+        r->y2 /= vert;
+}
+/**
+ * drm_rect_width - determine the rectangle width
+ * @r: rectangle whose width is returned
+ *
+ * RETURNS:
+ * The width of the rectangle.
+ */
+static inline int drm_rect_width(const struct drm_rect *r)
+{
+        return r->x2 - r->x1;
+}
+/**
+ * drm_rect_height - determine the rectangle height
+ * @r: rectangle whose height is returned
+ *
+ * RETURNS:
+ * The height of the rectangle.
+ */
+static inline int drm_rect_height(const struct drm_rect *r)
+{
+        return r->y2 - r->y1;
+}
+/**
+ * drm_rect_visible - determine if the the rectangle is visible
+ * @r: rectangle whose visibility is returned
+ *
+ * RETURNS:
+ * %true if the rectangle is visible, %false otherwise.
+ */
+static inline bool drm_rect_visible(const struct drm_rect *r)
+{
+        return drm_rect_width(r) > 0 && drm_rect_height(r) > 0;
+}
+/**
+ * drm_rect_equals - determine if two rectangles are equal
+ * @r1: first rectangle
+ * @r2: second rectangle
+ *
+ * RETURNS:
+ * %true if the rectangles are equal, %false otherwise.
+ */
+static inline bool drm_rect_equals(const struct drm_rect *r1,
+                                   const struct drm_rect *r2)
+{
+        return r1->x1 == r2->x1 && r1->x2 == r2->x2 &&
+                r1->y1 == r2->y1 && r1->y2 == r2->y2;
+}
+bool drm_rect_intersect(struct drm_rect *r, const struct drm_rect *clip);
+bool drm_rect_clip_scaled(struct drm_rect *src, struct drm_rect *dst,
+                          const struct drm_rect *clip,
+                          int hscale, int vscale);
+int drm_rect_calc_hscale(const struct drm_rect *src,
+                         const struct drm_rect *dst,
+                         int min_hscale, int max_hscale);
+int drm_rect_calc_vscale(const struct drm_rect *src,
+                         const struct drm_rect *dst,
+                         int min_vscale, int max_vscale);
+int drm_rect_calc_hscale_relaxed(struct drm_rect *src,
+                                 struct drm_rect *dst,
+                                 int min_hscale, int max_hscale);
+int drm_rect_calc_vscale_relaxed(struct drm_rect *src,
+                                 struct drm_rect *dst,
+                                 int min_vscale, int max_vscale);
+void drm_rect_debug_print(const struct drm_rect *r, bool fixed_point);
+#endif

 /drivers/include/drm/ttm/ttm_bo_api.h
 ,7 → 44,11
 struct drm_mm_node;
+struct reservation_object {
+        struct mutex lock;
+};
 /**
  * struct ttm_placement
  *
 ,7 → 157,6
  * Lru lists may keep one refcount, the delayed delete list, and kref != 0
  * keeps one refcount. When this refcount reaches zero,
  * the object is destroyed.
- * @event_queue: Queue for processes waiting on buffer object status change.
  * @mem: structure describing current placement.
  * @persistent_swap_storage: Usually the swap storage is deleted for buffers
  * pinned in physical memory. If this behaviour is not desired, this member
 ,12 → 167,6
  * @lru: List head for the lru list.
  * @ddestroy: List head for the delayed destroy list.
  * @swap: List head for swap LRU list.
- * @val_seq: Sequence of the validation holding the @reserved lock.
- * Used to avoid starvation when many processes compete to validate the
- * buffer. This member is protected by the bo_device::lru_lock.
- * @seq_valid: The value of @val_seq is valid. This value is protected by
- * the bo_device::lru_lock.
- * @reserved: Deadlock-free lock used for synchronization state transitions.
  * @sync_obj: Pointer to a synchronization object.
  * @priv_flags: Flags describing buffer object internal state.
  * @vm_rb: Rb node for the vm rb tree.
 ,10 → 206,9
         struct kref kref;
         struct kref list_kref;
-        wait_queue_head_t event_queue;
         /**
-         * Members protected by the bo::reserved lock.
+         * Members protected by the bo::resv::reserved lock.
          */
         struct ttm_mem_reg mem;
 ,17 → 230,8
         struct list_head ddestroy;
         struct list_head swap;
         struct list_head io_reserve_lru;
-        uint32_t val_seq;
-        bool seq_valid;
         /**
-         * Members protected by the bdev::lru_lock
-         * only when written to.
-         */
-        atomic_t reserved;
-        /**
          * Members protected by struct buffer_object_device::fence_lock
          * In addition, setting sync_obj to anything else
          * than NULL requires bo::reserved to be held. This allows for
 ,6 → 259,9
         uint32_t cur_placement;
         struct sg_table *sg;
+        struct reservation_object *resv;
+        struct reservation_object ttm_resv;
 };
 /**
 ,18 → 715,4
 extern void ttm_bo_swapout_all(struct ttm_bo_device *bdev);
-/**
- * ttm_bo_is_reserved - return an indication if a ttm buffer object is reserved
- *
- * @bo:     The buffer object to check.
- *
- * This function returns an indication if a bo is reserved or not, and should
- * only be used to print an error when it is not from incorrect api usage, since
- * there's no guarantee that it is the caller that is holding the reservation.
- */
-static inline bool ttm_bo_is_reserved(struct ttm_buffer_object *bo)
-{
-        return atomic_read(&bo->reserved);
-}
 #endif

 /drivers/include/drm/ttm/ttm_bo_driver.h
 ,6 → 33,7
 #include <ttm/ttm_bo_api.h>
 #include <ttm/ttm_memory.h>
 #include <ttm/ttm_module.h>
+#include <ttm/ttm_placement.h>
 #include <drm/drm_mm.h>
 #include <drm/drm_global.h>
 //#include <linux/workqueue.h>
 ,6 → 40,8
 //#include <linux/fs.h>
 #include <linux/spinlock.h>
+struct ww_acquire_ctx;
 struct ttm_backend_func {
         /**
          * struct ttm_backend_func member bind
 ,8 → 781,8
  * @bo: A pointer to a struct ttm_buffer_object.
  * @interruptible: Sleep interruptible if waiting.
  * @no_wait: Don't sleep while trying to reserve, rather return -EBUSY.
- * @use_sequence: If @bo is already reserved, Only sleep waiting for
- * it to become unreserved if @sequence < (@bo)->sequence.
+ * @use_ticket: If @bo is already reserved, Only sleep waiting for
+ * it to become unreserved if @ticket->stamp is older.
  *
  * Locks a buffer object for validation. (Or prevents other processes from
  * locking it for validation) and removes it from lru lists, while taking
 ,19 → 793,10
  * to make room for a buffer already reserved. (Buffers are reserved before
  * they are evicted). The following algorithm prevents such deadlocks from
  * occurring:
- * 1) Buffers are reserved with the lru spinlock held. Upon successful
- * reservation they are removed from the lru list. This stops a reserved buffer
- * from being evicted. However the lru spinlock is released between the time
- * a buffer is selected for eviction and the time it is reserved.
- * Therefore a check is made when a buffer is reserved for eviction, that it
- * is still the first buffer in the lru list, before it is removed from the
- * list. @check_lru == 1 forces this check. If it fails, the function returns
- * -EINVAL, and the caller should then choose a new buffer to evict and repeat
- * the procedure.
- * 2) Processes attempting to reserve multiple buffers other than for eviction,
+ * Processes attempting to reserve multiple buffers other than for eviction,
  * (typically execbuf), should first obtain a unique 32-bit
  * validation sequence number,
- * and call this function with @use_sequence == 1 and @sequence == the unique
+ * and call this function with @use_ticket == 1 and @ticket->stamp == the unique
  * sequence number. If upon call of this function, the buffer object is already
  * reserved, the validation sequence is checked against the validation
  * sequence of the process currently reserving the buffer,
 ,84 → 811,102
  * will eventually succeed, preventing both deadlocks and starvation.
  *
  * Returns:
- * -EAGAIN: The reservation may cause a deadlock.
+ * -EDEADLK: The reservation may cause a deadlock.
  * Release all buffer reservations, wait for @bo to become unreserved and
  * try again. (only if use_sequence == 1).
  * -ERESTARTSYS: A wait for the buffer to become unreserved was interrupted by
  * a signal. Release all buffer reservations and return to user-space.
  * -EBUSY: The function needed to sleep, but @no_wait was true
- * -EDEADLK: Bo already reserved using @sequence. This error code will only
- * be returned if @use_sequence is set to true.
+ * -EALREADY: Bo already reserved using @ticket. This error code will only
+ * be returned if @use_ticket is set to true.
  */
-extern int ttm_bo_reserve(struct ttm_buffer_object *bo,
+static inline int ttm_bo_reserve(struct ttm_buffer_object *bo,
                           bool interruptible,
-                          bool no_wait, bool use_sequence, uint32_t sequence);
+                                 bool no_wait, bool use_ticket,
+                                 struct ww_acquire_ctx *ticket)
+{
+        int ret;
+        WARN_ON(!atomic_read(&bo->kref.refcount));
+        ret = ttm_bo_reserve_nolru(bo, interruptible, no_wait, use_ticket,
+                                    ticket);
+        if (likely(ret == 0))
+                ttm_bo_del_sub_from_lru(bo);
+        return ret;
+}
 /**
- * ttm_bo_reserve_locked:
- *
+ * ttm_bo_reserve_slowpath:
  * @bo: A pointer to a struct ttm_buffer_object.
  * @interruptible: Sleep interruptible if waiting.
- * @no_wait: Don't sleep while trying to reserve, rather return -EBUSY.
- * @use_sequence: If @bo is already reserved, Only sleep waiting for
- * it to become unreserved if @sequence < (@bo)->sequence.
+ * @sequence: Set (@bo)->sequence to this value after lock
  *
- * Must be called with struct ttm_bo_global::lru_lock held,
- * and will not remove reserved buffers from the lru lists.
- * The function may release the LRU spinlock if it needs to sleep.
- * Otherwise identical to ttm_bo_reserve.
- *
- * Returns:
- * -EAGAIN: The reservation may cause a deadlock.
- * Release all buffer reservations, wait for @bo to become unreserved and
- * try again. (only if use_sequence == 1).
- * -ERESTARTSYS: A wait for the buffer to become unreserved was interrupted by
- * a signal. Release all buffer reservations and return to user-space.
- * -EBUSY: The function needed to sleep, but @no_wait was true
- * -EDEADLK: Bo already reserved using @sequence. This error code will only
- * be returned if @use_sequence is set to true.
+ * This is called after ttm_bo_reserve returns -EAGAIN and we backed off
+ * from all our other reservations. Because there are no other reservations
+ * held by us, this function cannot deadlock any more.
  */
-extern int ttm_bo_reserve_locked(struct ttm_buffer_object *bo,
+static inline int ttm_bo_reserve_slowpath(struct ttm_buffer_object *bo,
                                  bool interruptible,
-                                 bool no_wait, bool use_sequence,
-                                 uint32_t sequence);
+                                          struct ww_acquire_ctx *ticket)
+{
+        int ret = 0;
+        WARN_ON(!atomic_read(&bo->kref.refcount));
+        if (interruptible)
+                ret = ww_mutex_lock_slow_interruptible(&bo->resv->lock,
+                                                       ticket);
+        else
+                ww_mutex_lock_slow(&bo->resv->lock, ticket);
+        if (likely(ret == 0))
+                ttm_bo_del_sub_from_lru(bo);
+        else if (ret == -EINTR)
+                ret = -ERESTARTSYS;
+        return ret;
+}
 /**
- * ttm_bo_unreserve
- *
+ * ttm_bo_unreserve_ticket
  * @bo: A pointer to a struct ttm_buffer_object.
+ * @ticket: ww_acquire_ctx used for reserving
  *
- * Unreserve a previous reservation of @bo.
+ * Unreserve a previous reservation of @bo made with @ticket.
  */
-extern void ttm_bo_unreserve(struct ttm_buffer_object *bo);
+static inline void ttm_bo_unreserve_ticket(struct ttm_buffer_object *bo,
+                                           struct ww_acquire_ctx *t)
+{
+        if (!(bo->mem.placement & TTM_PL_FLAG_NO_EVICT)) {
+                spin_lock(&bo->glob->lru_lock);
+                ttm_bo_add_to_lru(bo);
+                spin_unlock(&bo->glob->lru_lock);
+        }
+        ww_mutex_unlock(&bo->resv->lock);
+}
 /**
- * ttm_bo_unreserve_locked
+ * ttm_bo_unreserve
  *
  * @bo: A pointer to a struct ttm_buffer_object.
  *
  * Unreserve a previous reservation of @bo.
- * Needs to be called with struct ttm_bo_global::lru_lock held.
  */
-extern void ttm_bo_unreserve_locked(struct ttm_buffer_object *bo);
+static inline void ttm_bo_unreserve(struct ttm_buffer_object *bo)
+{
+        ttm_bo_unreserve_ticket(bo, NULL);
+}
-/**
- * ttm_bo_wait_unreserved
- *
- * @bo: A pointer to a struct ttm_buffer_object.
- *
- * Wait for a struct ttm_buffer_object to become unreserved.
- * This is typically used in the execbuf code to relax cpu-usage when
- * a potential deadlock condition backoff.
- */
-extern int ttm_bo_wait_unreserved(struct ttm_buffer_object *bo,
-                                  bool interruptible);
 /*
  * ttm_bo_util.c
  */
+int ttm_mem_io_reserve(struct ttm_bo_device *bdev,
+                       struct ttm_mem_reg *mem);
+void ttm_mem_io_free(struct ttm_bo_device *bdev,
+                     struct ttm_mem_reg *mem);
 /**
  * ttm_bo_move_ttm
  *

 /drivers/include/drm/ttm/ttm_execbuf_util.h
 ,6 → 57,7
 /**
  * function ttm_eu_backoff_reservation
  *
+ * @ticket:   ww_acquire_ctx from reserve call
  * @list:     thread private list of ttm_validate_buffer structs.
  *
  * Undoes all buffer validation reservations for bos pointed to by
 ,11 → 64,13
  * the list entries.
  */
-extern void ttm_eu_backoff_reservation(struct list_head *list);
+extern void ttm_eu_backoff_reservation(struct ww_acquire_ctx *ticket,
+                                       struct list_head *list);
 /**
  * function ttm_eu_reserve_buffers
  *
+ * @ticket:  [out] ww_acquire_ctx returned by call.
  * @list:    thread private list of ttm_validate_buffer structs.
  *
  * Tries to reserve bos pointed to by the list entries for validation.
 ,11 → 93,13
  * has failed.
  */
-extern int ttm_eu_reserve_buffers(struct list_head *list);
+extern int ttm_eu_reserve_buffers(struct ww_acquire_ctx *ticket,
+                                  struct list_head *list);
 /**
  * function ttm_eu_fence_buffer_objects.
  *
+ * @ticket:      ww_acquire_ctx from reserve call
  * @list:        thread private list of ttm_validate_buffer structs.
  * @sync_obj:    The new sync object for the buffers.
  *
 ,6 → 109,7
  *
  */
-extern void ttm_eu_fence_buffer_objects(struct list_head *list, void *sync_obj);
+extern void ttm_eu_fence_buffer_objects(struct ww_acquire_ctx *ticket,
+                                        struct list_head *list, void *sync_obj);
 #endif

 /drivers/include/drm/ttm/ttm_object.h
 ,7 → 40,7
 #include <linux/list.h>
 #include <drm/drm_hashtab.h>
 #include <linux/kref.h>
-#include <linux/rcupdate.h>
+//#include <linux/rcupdate.h>
 #include <ttm/ttm_memory.h>
 /**

 /drivers/include/drm/vmwgfx_drm.h
 ,0 → 1,790
+/**************************************************************************
+ *
+ * Copyright © 2009 VMware, Inc., Palo Alto, CA., USA
+ * 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.
+ *
+ **************************************************************************/
+#ifndef __VMWGFX_DRM_H__
+#define __VMWGFX_DRM_H__
+#define DRM_VMW_MAX_SURFACE_FACES 6
+#define DRM_VMW_MAX_MIP_LEVELS 24
+#define DRM_VMW_GET_PARAM            0
+#define DRM_VMW_ALLOC_DMABUF         1
+#define DRM_VMW_UNREF_DMABUF         2
+#define DRM_VMW_CURSOR_BYPASS        3
+/* guarded by DRM_VMW_PARAM_NUM_STREAMS != 0*/
+#define DRM_VMW_CONTROL_STREAM       4
+#define DRM_VMW_CLAIM_STREAM         5
+#define DRM_VMW_UNREF_STREAM         6
+/* guarded by DRM_VMW_PARAM_3D == 1 */
+#define DRM_VMW_CREATE_CONTEXT       7
+#define DRM_VMW_UNREF_CONTEXT        8
+#define DRM_VMW_CREATE_SURFACE       9
+#define DRM_VMW_UNREF_SURFACE        10
+#define DRM_VMW_REF_SURFACE          11
+#define DRM_VMW_EXECBUF              12
+#define DRM_VMW_GET_3D_CAP           13
+#define DRM_VMW_FENCE_WAIT           14
+#define DRM_VMW_FENCE_SIGNALED       15
+#define DRM_VMW_FENCE_UNREF          16
+#define DRM_VMW_FENCE_EVENT          17
+#define DRM_VMW_PRESENT              18
+#define DRM_VMW_PRESENT_READBACK     19
+#define DRM_VMW_UPDATE_LAYOUT        20
+/*************************************************************************/
+/**
+ * DRM_VMW_GET_PARAM - get device information.
+ *
+ * DRM_VMW_PARAM_FIFO_OFFSET:
+ * Offset to use to map the first page of the FIFO read-only.
+ * The fifo is mapped using the mmap() system call on the drm device.
+ *
+ * DRM_VMW_PARAM_OVERLAY_IOCTL:
+ * Does the driver support the overlay ioctl.
+ */
+#define DRM_VMW_PARAM_NUM_STREAMS      0
+#define DRM_VMW_PARAM_NUM_FREE_STREAMS 1
+#define DRM_VMW_PARAM_3D               2
+#define DRM_VMW_PARAM_HW_CAPS          3
+#define DRM_VMW_PARAM_FIFO_CAPS        4
+#define DRM_VMW_PARAM_MAX_FB_SIZE      5
+#define DRM_VMW_PARAM_FIFO_HW_VERSION  6
+/**
+ * struct drm_vmw_getparam_arg
+ *
+ * @value: Returned value. //Out
+ * @param: Parameter to query. //In.
+ *
+ * Argument to the DRM_VMW_GET_PARAM Ioctl.
+ */
+struct drm_vmw_getparam_arg {
+        uint64_t value;
+        uint32_t param;
+        uint32_t pad64;
+};
+/*************************************************************************/
+/**
+ * DRM_VMW_CREATE_CONTEXT - Create a host context.
+ *
+ * Allocates a device unique context id, and queues a create context command
+ * for the host. Does not wait for host completion.
+ */
+/**
+ * struct drm_vmw_context_arg
+ *
+ * @cid: Device unique context ID.
+ *
+ * Output argument to the DRM_VMW_CREATE_CONTEXT Ioctl.
+ * Input argument to the DRM_VMW_UNREF_CONTEXT Ioctl.
+ */
+struct drm_vmw_context_arg {
+        int32_t cid;
+        uint32_t pad64;
+};
+/*************************************************************************/
+/**
+ * DRM_VMW_UNREF_CONTEXT - Create a host context.
+ *
+ * Frees a global context id, and queues a destroy host command for the host.
+ * Does not wait for host completion. The context ID can be used directly
+ * in the command stream and shows up as the same context ID on the host.
+ */
+/*************************************************************************/
+/**
+ * DRM_VMW_CREATE_SURFACE - Create a host suface.
+ *
+ * Allocates a device unique surface id, and queues a create surface command
+ * for the host. Does not wait for host completion. The surface ID can be
+ * used directly in the command stream and shows up as the same surface
+ * ID on the host.
+ */
+/**
+ * struct drm_wmv_surface_create_req
+ *
+ * @flags: Surface flags as understood by the host.
+ * @format: Surface format as understood by the host.
+ * @mip_levels: Number of mip levels for each face.
+ * An unused face should have 0 encoded.
+ * @size_addr: Address of a user-space array of sruct drm_vmw_size
+ * cast to an uint64_t for 32-64 bit compatibility.
+ * The size of the array should equal the total number of mipmap levels.
+ * @shareable: Boolean whether other clients (as identified by file descriptors)
+ * may reference this surface.
+ * @scanout: Boolean whether the surface is intended to be used as a
+ * scanout.
+ *
+ * Input data to the DRM_VMW_CREATE_SURFACE Ioctl.
+ * Output data from the DRM_VMW_REF_SURFACE Ioctl.
+ */
+struct drm_vmw_surface_create_req {
+        uint32_t flags;
+        uint32_t format;
+        uint32_t mip_levels[DRM_VMW_MAX_SURFACE_FACES];
+        uint64_t size_addr;
+        int32_t shareable;
+        int32_t scanout;
+};
+/**
+ * struct drm_wmv_surface_arg
+ *
+ * @sid: Surface id of created surface or surface to destroy or reference.
+ *
+ * Output data from the DRM_VMW_CREATE_SURFACE Ioctl.
+ * Input argument to the DRM_VMW_UNREF_SURFACE Ioctl.
+ * Input argument to the DRM_VMW_REF_SURFACE Ioctl.
+ */
+struct drm_vmw_surface_arg {
+        int32_t sid;
+        uint32_t pad64;
+};
+/**
+ * struct drm_vmw_size ioctl.
+ *
+ * @width - mip level width
+ * @height - mip level height
+ * @depth - mip level depth
+ *
+ * Description of a mip level.
+ * Input data to the DRM_WMW_CREATE_SURFACE Ioctl.
+ */
+struct drm_vmw_size {
+        uint32_t width;
+        uint32_t height;
+        uint32_t depth;
+        uint32_t pad64;
+};
+/**
+ * union drm_vmw_surface_create_arg
+ *
+ * @rep: Output data as described above.
+ * @req: Input data as described above.
+ *
+ * Argument to the DRM_VMW_CREATE_SURFACE Ioctl.
+ */
+union drm_vmw_surface_create_arg {
+        struct drm_vmw_surface_arg rep;
+        struct drm_vmw_surface_create_req req;
+};
+/*************************************************************************/
+/**
+ * DRM_VMW_REF_SURFACE - Reference a host surface.
+ *
+ * Puts a reference on a host surface with a give sid, as previously
+ * returned by the DRM_VMW_CREATE_SURFACE ioctl.
+ * A reference will make sure the surface isn't destroyed while we hold
+ * it and will allow the calling client to use the surface ID in the command
+ * stream.
+ *
+ * On successful return, the Ioctl returns the surface information given
+ * in the DRM_VMW_CREATE_SURFACE ioctl.
+ */
+/**
+ * union drm_vmw_surface_reference_arg
+ *
+ * @rep: Output data as described above.
+ * @req: Input data as described above.
+ *
+ * Argument to the DRM_VMW_REF_SURFACE Ioctl.
+ */
+union drm_vmw_surface_reference_arg {
+        struct drm_vmw_surface_create_req rep;
+        struct drm_vmw_surface_arg req;
+};
+/*************************************************************************/
+/**
+ * DRM_VMW_UNREF_SURFACE - Unreference a host surface.
+ *
+ * Clear a reference previously put on a host surface.
+ * When all references are gone, including the one implicitly placed
+ * on creation,
+ * a destroy surface command will be queued for the host.
+ * Does not wait for completion.
+ */
+/*************************************************************************/
+/**
+ * DRM_VMW_EXECBUF
+ *
+ * Submit a command buffer for execution on the host, and return a
+ * fence seqno that when signaled, indicates that the command buffer has
+ * executed.
+ */
+/**
+ * struct drm_vmw_execbuf_arg
+ *
+ * @commands: User-space address of a command buffer cast to an uint64_t.
+ * @command-size: Size in bytes of the command buffer.
+ * @throttle-us: Sleep until software is less than @throttle_us
+ * microseconds ahead of hardware. The driver may round this value
+ * to the nearest kernel tick.
+ * @fence_rep: User-space address of a struct drm_vmw_fence_rep cast to an
+ * uint64_t.
+ * @version: Allows expanding the execbuf ioctl parameters without breaking
+ * backwards compatibility, since user-space will always tell the kernel
+ * which version it uses.
+ * @flags: Execbuf flags. None currently.
+ *
+ * Argument to the DRM_VMW_EXECBUF Ioctl.
+ */
+#define DRM_VMW_EXECBUF_VERSION 1
+struct drm_vmw_execbuf_arg {
+        uint64_t commands;
+        uint32_t command_size;
+        uint32_t throttle_us;
+        uint64_t fence_rep;
+        uint32_t version;
+        uint32_t flags;
+};
+/**
+ * struct drm_vmw_fence_rep
+ *
+ * @handle: Fence object handle for fence associated with a command submission.
+ * @mask: Fence flags relevant for this fence object.
+ * @seqno: Fence sequence number in fifo. A fence object with a lower
+ * seqno will signal the EXEC flag before a fence object with a higher
+ * seqno. This can be used by user-space to avoid kernel calls to determine
+ * whether a fence has signaled the EXEC flag. Note that @seqno will
+ * wrap at 32-bit.
+ * @passed_seqno: The highest seqno number processed by the hardware
+ * so far. This can be used to mark user-space fence objects as signaled, and
+ * to determine whether a fence seqno might be stale.
+ * @error: This member should've been set to -EFAULT on submission.
+ * The following actions should be take on completion:
+ * error == -EFAULT: Fence communication failed. The host is synchronized.
+ * Use the last fence id read from the FIFO fence register.
+ * error != 0 && error != -EFAULT:
+ * Fence submission failed. The host is synchronized. Use the fence_seq member.
+ * error == 0: All is OK, The host may not be synchronized.
+ * Use the fence_seq member.
+ *
+ * Input / Output data to the DRM_VMW_EXECBUF Ioctl.
+ */
+struct drm_vmw_fence_rep {
+        uint32_t handle;
+        uint32_t mask;
+        uint32_t seqno;
+        uint32_t passed_seqno;
+        uint32_t pad64;
+        int32_t error;
+};
+/*************************************************************************/
+/**
+ * DRM_VMW_ALLOC_DMABUF
+ *
+ * Allocate a DMA buffer that is visible also to the host.
+ * NOTE: The buffer is
+ * identified by a handle and an offset, which are private to the guest, but
+ * useable in the command stream. The guest kernel may translate these
+ * and patch up the command stream accordingly. In the future, the offset may
+ * be zero at all times, or it may disappear from the interface before it is
+ * fixed.
+ *
+ * The DMA buffer may stay user-space mapped in the guest at all times,
+ * and is thus suitable for sub-allocation.
+ *
+ * DMA buffers are mapped using the mmap() syscall on the drm device.
+ */
+/**
+ * struct drm_vmw_alloc_dmabuf_req
+ *
+ * @size: Required minimum size of the buffer.
+ *
+ * Input data to the DRM_VMW_ALLOC_DMABUF Ioctl.
+ */
+struct drm_vmw_alloc_dmabuf_req {
+        uint32_t size;
+        uint32_t pad64;
+};
+/**
+ * struct drm_vmw_dmabuf_rep
+ *
+ * @map_handle: Offset to use in the mmap() call used to map the buffer.
+ * @handle: Handle unique to this buffer. Used for unreferencing.
+ * @cur_gmr_id: GMR id to use in the command stream when this buffer is
+ * referenced. See not above.
+ * @cur_gmr_offset: Offset to use in the command stream when this buffer is
+ * referenced. See note above.
+ *
+ * Output data from the DRM_VMW_ALLOC_DMABUF Ioctl.
+ */
+struct drm_vmw_dmabuf_rep {
+        uint64_t map_handle;
+        uint32_t handle;
+        uint32_t cur_gmr_id;
+        uint32_t cur_gmr_offset;
+        uint32_t pad64;
+};
+/**
+ * union drm_vmw_dmabuf_arg
+ *
+ * @req: Input data as described above.
+ * @rep: Output data as described above.
+ *
+ * Argument to the DRM_VMW_ALLOC_DMABUF Ioctl.
+ */
+union drm_vmw_alloc_dmabuf_arg {
+        struct drm_vmw_alloc_dmabuf_req req;
+        struct drm_vmw_dmabuf_rep rep;
+};
+/*************************************************************************/
+/**
+ * DRM_VMW_UNREF_DMABUF - Free a DMA buffer.
+ *
+ */
+/**
+ * struct drm_vmw_unref_dmabuf_arg
+ *
+ * @handle: Handle indicating what buffer to free. Obtained from the
+ * DRM_VMW_ALLOC_DMABUF Ioctl.
+ *
+ * Argument to the DRM_VMW_UNREF_DMABUF Ioctl.
+ */
+struct drm_vmw_unref_dmabuf_arg {
+        uint32_t handle;
+        uint32_t pad64;
+};
+/*************************************************************************/
+/**
+ * DRM_VMW_CONTROL_STREAM - Control overlays, aka streams.
+ *
+ * This IOCTL controls the overlay units of the svga device.
+ * The SVGA overlay units does not work like regular hardware units in
+ * that they do not automaticaly read back the contents of the given dma
+ * buffer. But instead only read back for each call to this ioctl, and
+ * at any point between this call being made and a following call that
+ * either changes the buffer or disables the stream.
+ */
+/**
+ * struct drm_vmw_rect
+ *
+ * Defines a rectangle. Used in the overlay ioctl to define
+ * source and destination rectangle.
+ */
+struct drm_vmw_rect {
+        int32_t x;
+        int32_t y;
+        uint32_t w;
+        uint32_t h;
+};
+/**
+ * struct drm_vmw_control_stream_arg
+ *
+ * @stream_id: Stearm to control
+ * @enabled: If false all following arguments are ignored.
+ * @handle: Handle to buffer for getting data from.
+ * @format: Format of the overlay as understood by the host.
+ * @width: Width of the overlay.
+ * @height: Height of the overlay.
+ * @size: Size of the overlay in bytes.
+ * @pitch: Array of pitches, the two last are only used for YUV12 formats.
+ * @offset: Offset from start of dma buffer to overlay.
+ * @src: Source rect, must be within the defined area above.
+ * @dst: Destination rect, x and y may be negative.
+ *
+ * Argument to the DRM_VMW_CONTROL_STREAM Ioctl.
+ */
+struct drm_vmw_control_stream_arg {
+        uint32_t stream_id;
+        uint32_t enabled;
+        uint32_t flags;
+        uint32_t color_key;
+        uint32_t handle;
+        uint32_t offset;
+        int32_t format;
+        uint32_t size;
+        uint32_t width;
+        uint32_t height;
+        uint32_t pitch[3];
+        uint32_t pad64;
+        struct drm_vmw_rect src;
+        struct drm_vmw_rect dst;
+};
+/*************************************************************************/
+/**
+ * DRM_VMW_CURSOR_BYPASS - Give extra information about cursor bypass.
+ *
+ */
+#define DRM_VMW_CURSOR_BYPASS_ALL    (1 << 0)
+#define DRM_VMW_CURSOR_BYPASS_FLAGS       (1)
+/**
+ * struct drm_vmw_cursor_bypass_arg
+ *
+ * @flags: Flags.
+ * @crtc_id: Crtc id, only used if DMR_CURSOR_BYPASS_ALL isn't passed.
+ * @xpos: X position of cursor.
+ * @ypos: Y position of cursor.
+ * @xhot: X hotspot.
+ * @yhot: Y hotspot.
+ *
+ * Argument to the DRM_VMW_CURSOR_BYPASS Ioctl.
+ */
+struct drm_vmw_cursor_bypass_arg {
+        uint32_t flags;
+        uint32_t crtc_id;
+        int32_t xpos;
+        int32_t ypos;
+        int32_t xhot;
+        int32_t yhot;
+};
+/*************************************************************************/
+/**
+ * DRM_VMW_CLAIM_STREAM - Claim a single stream.
+ */
+/**
+ * struct drm_vmw_context_arg
+ *
+ * @stream_id: Device unique context ID.
+ *
+ * Output argument to the DRM_VMW_CREATE_CONTEXT Ioctl.
+ * Input argument to the DRM_VMW_UNREF_CONTEXT Ioctl.
+ */
+struct drm_vmw_stream_arg {
+        uint32_t stream_id;
+        uint32_t pad64;
+};
+/*************************************************************************/
+/**
+ * DRM_VMW_UNREF_STREAM - Unclaim a stream.
+ *
+ * Return a single stream that was claimed by this process. Also makes
+ * sure that the stream has been stopped.
+ */
+/*************************************************************************/
+/**
+ * DRM_VMW_GET_3D_CAP
+ *
+ * Read 3D capabilities from the FIFO
+ *
+ */
+/**
+ * struct drm_vmw_get_3d_cap_arg
+ *
+ * @buffer: Pointer to a buffer for capability data, cast to an uint64_t
+ * @size: Max size to copy
+ *
+ * Input argument to the DRM_VMW_GET_3D_CAP_IOCTL
+ * ioctls.
+ */
+struct drm_vmw_get_3d_cap_arg {
+        uint64_t buffer;
+        uint32_t max_size;
+        uint32_t pad64;
+};
+/*************************************************************************/
+/**
+ * DRM_VMW_FENCE_WAIT
+ *
+ * Waits for a fence object to signal. The wait is interruptible, so that
+ * signals may be delivered during the interrupt. The wait may timeout,
+ * in which case the calls returns -EBUSY. If the wait is restarted,
+ * that is restarting without resetting @cookie_valid to zero,
+ * the timeout is computed from the first call.
+ *
+ * The flags argument to the DRM_VMW_FENCE_WAIT ioctl indicates what to wait
+ * on:
+ * DRM_VMW_FENCE_FLAG_EXEC: All commands ahead of the fence in the command
+ * stream
+ * have executed.
+ * DRM_VMW_FENCE_FLAG_QUERY: All query results resulting from query finish
+ * commands
+ * in the buffer given to the EXECBUF ioctl returning the fence object handle
+ * are available to user-space.
+ *
+ * DRM_VMW_WAIT_OPTION_UNREF: If this wait option is given, and the
+ * fenc wait ioctl returns 0, the fence object has been unreferenced after
+ * the wait.
+ */
+#define DRM_VMW_FENCE_FLAG_EXEC   (1 << 0)
+#define DRM_VMW_FENCE_FLAG_QUERY  (1 << 1)
+#define DRM_VMW_WAIT_OPTION_UNREF (1 << 0)
+/**
+ * struct drm_vmw_fence_wait_arg
+ *
+ * @handle: Fence object handle as returned by the DRM_VMW_EXECBUF ioctl.
+ * @cookie_valid: Must be reset to 0 on first call. Left alone on restart.
+ * @kernel_cookie: Set to 0 on first call. Left alone on restart.
+ * @timeout_us: Wait timeout in microseconds. 0 for indefinite timeout.
+ * @lazy: Set to 1 if timing is not critical. Allow more than a kernel tick
+ * before returning.
+ * @flags: Fence flags to wait on.
+ * @wait_options: Options that control the behaviour of the wait ioctl.
+ *
+ * Input argument to the DRM_VMW_FENCE_WAIT ioctl.
+ */
+struct drm_vmw_fence_wait_arg {
+        uint32_t handle;
+        int32_t  cookie_valid;
+        uint64_t kernel_cookie;
+        uint64_t timeout_us;
+        int32_t lazy;
+        int32_t flags;
+        int32_t wait_options;
+        int32_t pad64;
+};
+/*************************************************************************/
+/**
+ * DRM_VMW_FENCE_SIGNALED
+ *
+ * Checks if a fence object is signaled..
+ */
+/**
+ * struct drm_vmw_fence_signaled_arg
+ *
+ * @handle: Fence object handle as returned by the DRM_VMW_EXECBUF ioctl.
+ * @flags: Fence object flags input to DRM_VMW_FENCE_SIGNALED ioctl
+ * @signaled: Out: Flags signaled.
+ * @sequence: Out: Highest sequence passed so far. Can be used to signal the
+ * EXEC flag of user-space fence objects.
+ *
+ * Input/Output argument to the DRM_VMW_FENCE_SIGNALED and DRM_VMW_FENCE_UNREF
+ * ioctls.
+ */
+struct drm_vmw_fence_signaled_arg {
+         uint32_t handle;
+         uint32_t flags;
+         int32_t signaled;
+         uint32_t passed_seqno;
+         uint32_t signaled_flags;
+         uint32_t pad64;
+};
+/*************************************************************************/
+/**
+ * DRM_VMW_FENCE_UNREF
+ *
+ * Unreferences a fence object, and causes it to be destroyed if there are no
+ * other references to it.
+ *
+ */
+/**
+ * struct drm_vmw_fence_arg
+ *
+ * @handle: Fence object handle as returned by the DRM_VMW_EXECBUF ioctl.
+ *
+ * Input/Output argument to the DRM_VMW_FENCE_UNREF ioctl..
+ */
+struct drm_vmw_fence_arg {
+         uint32_t handle;
+         uint32_t pad64;
+};
+/*************************************************************************/
+/**
+ * DRM_VMW_FENCE_EVENT
+ *
+ * Queues an event on a fence to be delivered on the drm character device
+ * when the fence has signaled the DRM_VMW_FENCE_FLAG_EXEC flag.
+ * Optionally the approximate time when the fence signaled is
+ * given by the event.
+ */
+/*
+ * The event type
+ */
+#define DRM_VMW_EVENT_FENCE_SIGNALED 0x80000000
+struct drm_vmw_event_fence {
+        struct drm_event base;
+        uint64_t user_data;
+        uint32_t tv_sec;
+        uint32_t tv_usec;
+};
+/*
+ * Flags that may be given to the command.
+ */
+/* Request fence signaled time on the event. */
+#define DRM_VMW_FE_FLAG_REQ_TIME (1 << 0)
+/**
+ * struct drm_vmw_fence_event_arg
+ *
+ * @fence_rep: Pointer to fence_rep structure cast to uint64_t or 0 if
+ * the fence is not supposed to be referenced by user-space.
+ * @user_info: Info to be delivered with the event.
+ * @handle: Attach the event to this fence only.
+ * @flags: A set of flags as defined above.
+ */
+struct drm_vmw_fence_event_arg {
+        uint64_t fence_rep;
+        uint64_t user_data;
+        uint32_t handle;
+        uint32_t flags;
+};
+/*************************************************************************/
+/**
+ * DRM_VMW_PRESENT
+ *
+ * Executes an SVGA present on a given fb for a given surface. The surface
+ * is placed on the framebuffer. Cliprects are given relative to the given
+ * point (the point disignated by dest_{x|y}).
+ *
+ */
+/**
+ * struct drm_vmw_present_arg
+ * @fb_id: framebuffer id to present / read back from.
+ * @sid: Surface id to present from.
+ * @dest_x: X placement coordinate for surface.
+ * @dest_y: Y placement coordinate for surface.
+ * @clips_ptr: Pointer to an array of clip rects cast to an uint64_t.
+ * @num_clips: Number of cliprects given relative to the framebuffer origin,
+ * in the same coordinate space as the frame buffer.
+ * @pad64: Unused 64-bit padding.
+ *
+ * Input argument to the DRM_VMW_PRESENT ioctl.
+ */
+struct drm_vmw_present_arg {
+        uint32_t fb_id;
+        uint32_t sid;
+        int32_t dest_x;
+        int32_t dest_y;
+        uint64_t clips_ptr;
+        uint32_t num_clips;
+        uint32_t pad64;
+};
+/*************************************************************************/
+/**
+ * DRM_VMW_PRESENT_READBACK
+ *
+ * Executes an SVGA present readback from a given fb to the dma buffer
+ * currently bound as the fb. If there is no dma buffer bound to the fb,
+ * an error will be returned.
+ *
+ */
+/**
+ * struct drm_vmw_present_arg
+ * @fb_id: fb_id to present / read back from.
+ * @num_clips: Number of cliprects.
+ * @clips_ptr: Pointer to an array of clip rects cast to an uint64_t.
+ * @fence_rep: Pointer to a struct drm_vmw_fence_rep, cast to an uint64_t.
+ * If this member is NULL, then the ioctl should not return a fence.
+ */
+struct drm_vmw_present_readback_arg {
+         uint32_t fb_id;
+         uint32_t num_clips;
+         uint64_t clips_ptr;
+         uint64_t fence_rep;
+};
+/*************************************************************************/
+/**
+ * DRM_VMW_UPDATE_LAYOUT - Update layout
+ *
+ * Updates the preferred modes and connection status for connectors. The
+ * command consists of one drm_vmw_update_layout_arg pointing to an array
+ * of num_outputs drm_vmw_rect's.
+ */
+/**
+ * struct drm_vmw_update_layout_arg
+ *
+ * @num_outputs: number of active connectors
+ * @rects: pointer to array of drm_vmw_rect cast to an uint64_t
+ *
+ * Input argument to the DRM_VMW_UPDATE_LAYOUT Ioctl.
+ */
+struct drm_vmw_update_layout_arg {
+        uint32_t num_outputs;
+        uint32_t pad64;
+        uint64_t rects;
+};
+#endif

 /drivers/include/linux/compiler-gcc4.h
 ,7 → 13,7
 #define __must_check            __attribute__((warn_unused_result))
 #define __compiler_offsetof(a,b) __builtin_offsetof(a,b)
-#if GCC_VERSION >= 40100
+#if GCC_VERSION >= 40100 && GCC_VERSION < 40600
 # define __compiletime_object_size(obj) __builtin_object_size(obj, 0)
 #endif

 /drivers/include/linux/ctype.h
 ,4 → 61,10
         return c | 0x20;
 }
+/* Fast check for octal digit */
+static inline int isodigit(const char c)
+{
+        return c >= '0' && c <= '7';
+}
 #endif

 /drivers/include/linux/err.h
 ,17 → 24,17
         return (void *) error;
 }
-static inline long __must_check PTR_ERR(const void *ptr)
+static inline long __must_check PTR_ERR(__force const void *ptr)
 {
         return (long) ptr;
 }
-static inline long __must_check IS_ERR(const void *ptr)
+static inline long __must_check IS_ERR(__force const void *ptr)
 {
         return IS_ERR_VALUE((unsigned long)ptr);
 }
-static inline long __must_check IS_ERR_OR_NULL(const void *ptr)
+static inline long __must_check IS_ERR_OR_NULL(__force const void *ptr)
 {
         return !ptr || IS_ERR_VALUE((unsigned long)ptr);
 }
 ,13 → 46,13
  * Explicitly cast an error-valued pointer to another pointer type in such a
  * way as to make it clear that's what's going on.
  */
-static inline void * __must_check ERR_CAST(const void *ptr)
+static inline void * __must_check ERR_CAST(__force const void *ptr)
 {
         /* cast away the const */
         return (void *) ptr;
 }
-static inline int __must_check PTR_RET(const void *ptr)
+static inline int __must_check PTR_RET(__force const void *ptr)
 {
         if (IS_ERR(ptr))
                 return PTR_ERR(ptr);

 /drivers/include/linux/hash.h
 ,0 → 1,81
+#ifndef _LINUX_HASH_H
+#define _LINUX_HASH_H
+/* Fast hashing routine for ints,  longs and pointers.
+   (C) 2002 Nadia Yvette Chambers, IBM */
+/*
+ * Knuth recommends primes in approximately golden ratio to the maximum
+ * integer representable by a machine word for multiplicative hashing.
+ * Chuck Lever verified the effectiveness of this technique:
+ * http://www.citi.umich.edu/techreports/reports/citi-tr-00-1.pdf
+ *
+ * These primes are chosen to be bit-sparse, that is operations on
+ * them can use shifts and additions instead of multiplications for
+ * machines where multiplications are slow.
+ */
+#include <asm/types.h>
+#include <linux/compiler.h>
+/* 2^31 + 2^29 - 2^25 + 2^22 - 2^19 - 2^16 + 1 */
+#define GOLDEN_RATIO_PRIME_32 0x9e370001UL
+/*  2^63 + 2^61 - 2^57 + 2^54 - 2^51 - 2^18 + 1 */
+#define GOLDEN_RATIO_PRIME_64 0x9e37fffffffc0001UL
+#if BITS_PER_LONG == 32
+#define GOLDEN_RATIO_PRIME GOLDEN_RATIO_PRIME_32
+#define hash_long(val, bits) hash_32(val, bits)
+#elif BITS_PER_LONG == 64
+#define hash_long(val, bits) hash_64(val, bits)
+#define GOLDEN_RATIO_PRIME GOLDEN_RATIO_PRIME_64
+#else
+#error Wordsize not 32 or 64
+#endif
+static __always_inline u64 hash_64(u64 val, unsigned int bits)
+{
+        u64 hash = val;
+        /*  Sigh, gcc can't optimise this alone like it does for 32 bits. */
+        u64 n = hash;
+        n <<= 18;
+        hash -= n;
+        n <<= 33;
+        hash -= n;
+        n <<= 3;
+        hash += n;
+        n <<= 3;
+        hash -= n;
+        n <<= 4;
+        hash += n;
+        n <<= 2;
+        hash += n;
+        /* High bits are more random, so use them. */
+        return hash >> (64 - bits);
+}
+static inline u32 hash_32(u32 val, unsigned int bits)
+{
+        /* On some cpus multiply is faster, on others gcc will do shifts */
+        u32 hash = val * GOLDEN_RATIO_PRIME_32;
+        /* High bits are more random, so use them. */
+        return hash >> (32 - bits);
+}
+static inline unsigned long hash_ptr(const void *ptr, unsigned int bits)
+{
+        return hash_long((unsigned long)ptr, bits);
+}
+static inline u32 hash32_ptr(const void *ptr)
+{
+        unsigned long val = (unsigned long)ptr;
+#if BITS_PER_LONG == 64
+        val ^= (val >> 32);
+#endif
+        return (u32)val;
+}
+#endif /* _LINUX_HASH_H */

 /drivers/include/linux/i2c.h
 ,7 → 55,6
  * struct i2c_driver - represent an I2C device driver
  * @class: What kind of i2c device we instantiate (for detect)
  * @attach_adapter: Callback for bus addition (deprecated)
- * @detach_adapter: Callback for bus removal (deprecated)
  * @probe: Callback for device binding
  * @remove: Callback for device unbinding
  * @shutdown: Callback for device shutdown
 ,12 → 91,10
 struct i2c_driver {
         unsigned int class;
-        /* Notifies the driver that a new bus has appeared or is about to be
-         * removed. You should avoid using this, it will be removed in a
-         * near future.
+        /* Notifies the driver that a new bus has appeared. You should avoid
+         * using this, it will be removed in a near future.
          */
         int (*attach_adapter)(struct i2c_adapter *) __deprecated;
-        int (*detach_adapter)(struct i2c_adapter *) __deprecated;
         /* Standard driver model interfaces */
         int (*probe)(struct i2c_client *, const struct i2c_device_id *);
 ,9 → 189,6
         unsigned short  addr;
         void            *platform_data;
         struct dev_archdata     *archdata;
-#ifdef CONFIG_OF
-        struct device_node *of_node;
-#endif
         int             irq;
 };

 /drivers/include/linux/idr.h
 ,6 → 48,7
         struct idr_layer *id_free;
         int                     layers; /* only valid w/o concurrent changes */
         int               id_free_cnt;
+        int                     cur;    /* current pos for cyclic allocation */
         spinlock_t              lock;
 };
 ,10 → 80,9
  */
 void *idr_find_slowpath(struct idr *idp, int id);
-int idr_pre_get(struct idr *idp, gfp_t gfp_mask);
-int idr_get_new_above(struct idr *idp, void *ptr, int starting_id, int *id);
 void idr_preload(gfp_t gfp_mask);
 int idr_alloc(struct idr *idp, void *ptr, int start, int end, gfp_t gfp_mask);
+int idr_alloc_cyclic(struct idr *idr, void *ptr, int start, int end, gfp_t gfp_mask);
 int idr_for_each(struct idr *idp,
                  int (*fn)(int id, void *p, void *data), void *data);
 void *idr_get_next(struct idr *idp, int *nextid);
 ,7 → 105,7
 /**
  * idr_find - return pointer for given id
- * @idp: idr handle
+ * @idr: idr handle
  * @id: lookup key
  *
  * Return the pointer given the id it has been registered with.  A %NULL
 ,31 → 126,69
 }
 /**
- * idr_get_new - allocate new idr entry
+ * idr_for_each_entry - iterate over an idr's elements of a given type
  * @idp: idr handle
+ * @entry:   the type * to use as cursor
+ * @id:      id entry's key
+ *
+ * @entry and @id do not need to be initialized before the loop, and
+ * after normal terminatinon @entry is left with the value NULL.  This
+ * is convenient for a "not found" value.
+ */
+#define idr_for_each_entry(idp, entry, id)                      \
+        for (id = 0; ((entry) = idr_get_next(idp, &(id))) != NULL; ++id)
+/*
+ * Don't use the following functions.  These exist only to suppress
+ * deprecated warnings on EXPORT_SYMBOL()s.
+ */
+int __idr_pre_get(struct idr *idp, gfp_t gfp_mask);
+int __idr_get_new_above(struct idr *idp, void *ptr, int starting_id, int *id);
+void __idr_remove_all(struct idr *idp);
+/**
+ * idr_pre_get - reserve resources for idr allocation
+ * @idp:        idr handle
+ * @gfp_mask:   memory allocation flags
+ *
+ * Part of old alloc interface.  This is going away.  Use
+ * idr_preload[_end]() and idr_alloc() instead.
+ */
+static inline int __deprecated idr_pre_get(struct idr *idp, gfp_t gfp_mask)
+{
+        return __idr_pre_get(idp, gfp_mask);
+}
+/**
+ * idr_get_new_above - allocate new idr entry above or equal to a start id
+ * @idp: idr handle
  * @ptr: pointer you want associated with the id
+ * @starting_id: id to start search at
  * @id: pointer to the allocated handle
  *
- * Simple wrapper around idr_get_new_above() w/ @starting_id of zero.
+ * Part of old alloc interface.  This is going away.  Use
+ * idr_preload[_end]() and idr_alloc() instead.
  */
-static inline int idr_get_new(struct idr *idp, void *ptr, int *id)
+static inline int __deprecated idr_get_new_above(struct idr *idp, void *ptr,
+                                                 int starting_id, int *id)
 {
-        return idr_get_new_above(idp, ptr, 0, id);
+        return __idr_get_new_above(idp, ptr, starting_id, id);
 }
 /**
- * idr_for_each_entry - iterate over an idr's elements of a given type
+ * idr_get_new - allocate new idr entry
  * @idp:     idr handle
- * @entry:   the type * to use as cursor
- * @id:      id entry's key
+ * @ptr: pointer you want associated with the id
+ * @id: pointer to the allocated handle
+ *
+ * Part of old alloc interface.  This is going away.  Use
+ * idr_preload[_end]() and idr_alloc() instead.
  */
-#define idr_for_each_entry(idp, entry, id)                              \
-        for (id = 0, entry = (typeof(entry))idr_get_next((idp), &(id)); \
-             entry != NULL;                                             \
-             ++id, entry = (typeof(entry))idr_get_next((idp), &(id)))
+static inline int __deprecated idr_get_new(struct idr *idp, void *ptr, int *id)
+{
+        return __idr_get_new_above(idp, ptr, 0, id);
+}
-void __idr_remove_all(struct idr *idp); /* don't use */
 /**
  * idr_remove_all - remove all ids from the given idr tree
  * @idp: idr handle
 ,8 → 231,22
 void ida_destroy(struct ida *ida);
 void ida_init(struct ida *ida);
-void __init idr_init_cache(void);
+int ida_simple_get(struct ida *ida, unsigned int start, unsigned int end,
+                   gfp_t gfp_mask);
+void ida_simple_remove(struct ida *ida, unsigned int id);
+/**
+ * ida_get_new - allocate new ID
+ * @ida:        idr handle
+ * @p_id:       pointer to the allocated handle
+ *
+ * Simple wrapper around ida_get_new_above() w/ @starting_id of zero.
+ */
+static inline int ida_get_new(struct ida *ida, int *p_id)
+{
+        return ida_get_new_above(ida, 0, p_id);
+}
+void __init idr_init_cache(void);
 #endif /* __IDR_H__ */

 /drivers/include/linux/jiffies.h
 ,6 → 130,10
          ((__s64)(a) - (__s64)(b) >= 0))
 #define time_before_eq64(a,b)   time_after_eq64(b,a)
+#define time_in_range64(a, b, c) \
+        (time_after_eq64(a, b) && \
+         time_before_eq64(a, c))
 /*
  * These four macros compare jiffies and 'a' for convenience.
  */

 /drivers/include/linux/list.h
 ,22 → 361,22
         list_entry((ptr)->next, type, member)
 /**
- * list_for_each        -       iterate over a list
- * @pos:        the &struct list_head to use as a loop cursor.
- * @head:       the head for your list.
+ * list_first_entry_or_null - get the first element from a list
+ * @ptr:        the list head to take the element from.
+ * @type:       the type of the struct this is embedded in.
+ * @member:     the name of the list_struct within the struct.
+ *
+ * Note that if the list is empty, it returns NULL.
  */
-#define list_for_each(pos, head) \
-        for (pos = (head)->next; pos != (head); pos = pos->next)
+#define list_first_entry_or_null(ptr, type, member) \
+        (!list_empty(ptr) ? list_first_entry(ptr, type, member) : NULL)
 /**
- * __list_for_each      -       iterate over a list
+ * list_for_each        -       iterate over a list
  * @pos:        the &struct list_head to use as a loop cursor.
  * @head:       the head for your list.
- *
- * This variant doesn't differ from list_for_each() any more.
- * We don't do prefetching in either case.
  */
-#define __list_for_each(pos, head) \
+#define list_for_each(pos, head) \
         for (pos = (head)->next; pos != (head); pos = pos->next)
 /**
 ,54 → 665,51
         for (pos = (head)->first; pos && ({ n = pos->next; 1; }); \
              pos = n)
+#define hlist_entry_safe(ptr, type, member) \
+        ({ typeof(ptr) ____ptr = (ptr); \
+           ____ptr ? hlist_entry(____ptr, type, member) : NULL; \
+        })
 /**
  * hlist_for_each_entry - iterate over list of given type
- * @tpos:       the type * to use as a loop cursor.
- * @pos:        the &struct hlist_node to use as a loop cursor.
+ * @pos:        the type * to use as a loop cursor.
  * @head:       the head for your list.
  * @member:     the name of the hlist_node within the struct.
  */
-#define hlist_for_each_entry(tpos, pos, head, member)                    \
-        for (pos = (head)->first;                                        \
-             pos &&                                                      \
-                ({ tpos = hlist_entry(pos, typeof(*tpos), member); 1;}); \
-             pos = pos->next)
+#define hlist_for_each_entry(pos, head, member)                         \
+        for (pos = hlist_entry_safe((head)->first, typeof(*(pos)), member);\
+             pos;                                                       \
+             pos = hlist_entry_safe((pos)->member.next, typeof(*(pos)), member))
 /**
  * hlist_for_each_entry_continue - iterate over a hlist continuing after current point
- * @tpos:       the type * to use as a loop cursor.
- * @pos:        the &struct hlist_node to use as a loop cursor.
+ * @pos:        the type * to use as a loop cursor.
  * @member:     the name of the hlist_node within the struct.
  */
-#define hlist_for_each_entry_continue(tpos, pos, member)                 \
-        for (pos = (pos)->next;                                          \
-             pos &&                                                      \
-                ({ tpos = hlist_entry(pos, typeof(*tpos), member); 1;}); \
-             pos = pos->next)
+#define hlist_for_each_entry_continue(pos, member)                      \
+        for (pos = hlist_entry_safe((pos)->member.next, typeof(*(pos)), member);\
+             pos;                                                       \
+             pos = hlist_entry_safe((pos)->member.next, typeof(*(pos)), member))
 /**
  * hlist_for_each_entry_from - iterate over a hlist continuing from current point
- * @tpos:       the type * to use as a loop cursor.
- * @pos:        the &struct hlist_node to use as a loop cursor.
+ * @pos:        the type * to use as a loop cursor.
  * @member:     the name of the hlist_node within the struct.
  */
-#define hlist_for_each_entry_from(tpos, pos, member)                     \
-        for (; pos &&                                                    \
-                ({ tpos = hlist_entry(pos, typeof(*tpos), member); 1;}); \
-             pos = pos->next)
+#define hlist_for_each_entry_from(pos, member)                          \
+        for (; pos;                                                     \
+             pos = hlist_entry_safe((pos)->member.next, typeof(*(pos)), member))
 /**
  * hlist_for_each_entry_safe - iterate over list of given type safe against removal of list entry
- * @tpos:       the type * to use as a loop cursor.
- * @pos:        the &struct hlist_node to use as a loop cursor.
+ * @pos:        the type * to use as a loop cursor.
  * @n:          another &struct hlist_node to use as temporary storage
  * @head:       the head for your list.
  * @member:     the name of the hlist_node within the struct.
  */
-#define hlist_for_each_entry_safe(tpos, pos, n, head, member)            \
-        for (pos = (head)->first;                                        \
-             pos && ({ n = pos->next; 1; }) &&                           \
-                ({ tpos = hlist_entry(pos, typeof(*tpos), member); 1;}); \
-             pos = n)
+#define hlist_for_each_entry_safe(pos, n, head, member)                 \
+        for (pos = hlist_entry_safe((head)->first, typeof(*pos), member);\
+             pos && ({ n = pos->member.next; 1; });                     \
+             pos = hlist_entry_safe(n, typeof(*pos), member))
 #endif

/drivers/include/linux/math64.h
7,6 → 7,7
#if BITS_PER_LONG == 64

#define div64_long(x,y) div64_s64((x),(y))
#define div64_ul(x, y) div64_u64((x), (y))

/**
* div_u64_rem - unsigned 64bit divide with 32bit divisor with remainder
48,6 → 49,7
#elif BITS_PER_LONG == 32

#define div64_long(x,y) div_s64((x),(y))
#define div64_ul(x, y) div_u64((x), (y))

#ifndef div_u64_rem
static inline u64 div_u64_rem(u64 dividend, u32 divisor, u32 *remainder)

 /drivers/include/linux/mod_devicetable.h
 ,8 → 33,7
         __u32 model_id;
         __u32 specifier_id;
         __u32 version;
-        kernel_ulong_t driver_data
-                __attribute__((aligned(sizeof(kernel_ulong_t))));
+        kernel_ulong_t driver_data;
 };
 ,8 → 146,7
         __u16 group;
         __u32 vendor;
         __u32 product;
-        kernel_ulong_t driver_data
-                __attribute__((aligned(sizeof(kernel_ulong_t))));
+        kernel_ulong_t driver_data;
 };
 /* s390 CCW devices */
 ,8 → 170,6
 struct ap_device_id {
         __u16 match_flags;      /* which fields to match against */
         __u8 dev_type;          /* device type */
-        __u8 pad1;
-        __u32 pad2;
         kernel_ulong_t driver_info;
 };
 ,13 → 179,10
 struct css_device_id {
         __u8 match_flags;
         __u8 type; /* subchannel type */
-        __u16 pad2;
-        __u32 pad3;
         kernel_ulong_t driver_data;
 };
-#define ACPI_ID_LEN     16 /* only 9 bytes needed here, 16 bytes are used */
-                           /* to workaround crosscompile issues */
+#define ACPI_ID_LEN     9
 struct acpi_device_id {
         __u8 id[ACPI_ID_LEN];
 ,11 → 223,7
         char    name[32];
         char    type[32];
         char    compatible[128];
-#ifdef __KERNEL__
         const void *data;
-#else
-        kernel_ulong_t data;
-#endif
 };
 /* VIO */
 ,24 → 248,14
         /* for pseudo multi-function devices */
         __u8            device_no;
-        __u32           prod_id_hash[4]
-                __attribute__((aligned(sizeof(__u32))));
+        __u32           prod_id_hash[4];
         /* not matched against in kernelspace*/
-#ifdef __KERNEL__
         const char *    prod_id[4];
-#else
-        kernel_ulong_t  prod_id[4]
-                __attribute__((aligned(sizeof(kernel_ulong_t))));
-#endif
         /* not matched against */
         kernel_ulong_t  driver_info;
-#ifdef __KERNEL__
         char *          cisfile;
-#else
-        kernel_ulong_t  cisfile;
-#endif
 };
 #define PCMCIA_DEV_ID_MATCH_MANF_ID     0x0001
 ,8 → 351,7
         __u8    class;                  /* Standard interface or SDIO_ANY_ID */
         __u16   vendor;                 /* Vendor or SDIO_ANY_ID */
         __u16   device;                 /* Device ID or SDIO_ANY_ID */
-        kernel_ulong_t driver_data      /* Data private to the driver */
-                __attribute__((aligned(sizeof(kernel_ulong_t))));
+        kernel_ulong_t driver_data;     /* Data private to the driver */
 };
 /* SSB core, see drivers/ssb/ */
 ,7 → 359,8
         __u16   vendor;
         __u16   coreid;
         __u8    revision;
-};
+        __u8    __pad;
+} __attribute__((packed, aligned(2)));
 #define SSB_DEVICE(_vendor, _coreid, _revision)  \
         { .vendor = _vendor, .coreid = _coreid, .revision = _revision, }
 #define SSB_DEVTABLE_END  \
 ,7 → 376,7
         __u16   id;
         __u8    rev;
         __u8    class;
-};
+} __attribute__((packed,aligned(2)));
 #define BCMA_CORE(_manuf, _id, _rev, _class)  \
         { .manuf = _manuf, .id = _id, .rev = _rev, .class = _class, }
 #define BCMA_CORETABLE_END  \
 ,6 → 393,23
 };
 #define VIRTIO_DEV_ANY_ID       0xffffffff
+/*
+ * For Hyper-V devices we use the device guid as the id.
+ */
+struct hv_vmbus_device_id {
+        __u8 guid[16];
+        kernel_ulong_t driver_data;     /* Data private to the driver */
+};
+/* rpmsg */
+#define RPMSG_NAME_SIZE                 32
+#define RPMSG_DEVICE_MODALIAS_FMT       "rpmsg:%s"
+struct rpmsg_device_id {
+        char name[RPMSG_NAME_SIZE];
+};
 /* i2c */
 #define I2C_NAME_SIZE   20
 ,8 → 417,7
 struct i2c_device_id {
         char name[I2C_NAME_SIZE];
-        kernel_ulong_t driver_data      /* Data private to the driver */
-                        __attribute__((aligned(sizeof(kernel_ulong_t))));
+        kernel_ulong_t driver_data;     /* Data private to the driver */
 };
 /* spi */
 ,8 → 427,7
 struct spi_device_id {
         char name[SPI_NAME_SIZE];
-        kernel_ulong_t driver_data      /* Data private to the driver */
-                        __attribute__((aligned(sizeof(kernel_ulong_t))));
+        kernel_ulong_t driver_data;     /* Data private to the driver */
 };
 /* dmi */
 ,20 → 455,12
 };
 struct dmi_strmatch {
-        unsigned char slot;
+        unsigned char slot:7;
+        unsigned char exact_match:1;
         char substr[79];
 };
-#ifndef __KERNEL__
 struct dmi_system_id {
-        kernel_ulong_t callback;
-        kernel_ulong_t ident;
-        struct dmi_strmatch matches[4];
-        kernel_ulong_t driver_data
-                        __attribute__((aligned(sizeof(kernel_ulong_t))));
-};
-#else
-struct dmi_system_id {
         int (*callback)(const struct dmi_system_id *);
         const char *ident;
         struct dmi_strmatch matches[4];
 ,9 → 473,9
  *      error: storage size of '__mod_dmi_device_table' isn't known
  */
 #define dmi_device_id dmi_system_id
-#endif
-#define DMI_MATCH(a, b) { a, b }
+#define DMI_MATCH(a, b) { .slot = a, .substr = b }
+#define DMI_EXACT_MATCH(a, b)   { .slot = a, .substr = b, .exact_match = 1 }
 #define PLATFORM_NAME_SIZE      20
 #define PLATFORM_MODULE_PREFIX  "platform:"
 ,8 → 482,7
 struct platform_device_id {
         char name[PLATFORM_NAME_SIZE];
-        kernel_ulong_t driver_data
-                        __attribute__((aligned(sizeof(kernel_ulong_t))));
+        kernel_ulong_t driver_data;
 };
 #define MDIO_MODULE_PREFIX      "mdio:"
 ,4 → 527,74
         kernel_ulong_t driver_data;     /* data private to the driver */
 };
+/**
+ * struct amba_id - identifies a device on an AMBA bus
+ * @id: The significant bits if the hardware device ID
+ * @mask: Bitmask specifying which bits of the id field are significant when
+ *      matching.  A driver binds to a device when ((hardware device ID) & mask)
+ *      == id.
+ * @data: Private data used by the driver.
+ */
+struct amba_id {
+        unsigned int            id;
+        unsigned int            mask;
+        void                    *data;
+};
+/*
+ * Match x86 CPUs for CPU specific drivers.
+ * See documentation of "x86_match_cpu" for details.
+ */
+struct x86_cpu_id {
+        __u16 vendor;
+        __u16 family;
+        __u16 model;
+        __u16 feature;  /* bit index */
+        kernel_ulong_t driver_data;
+};
+#define X86_FEATURE_MATCH(x) \
+        { X86_VENDOR_ANY, X86_FAMILY_ANY, X86_MODEL_ANY, x }
+#define X86_VENDOR_ANY 0xffff
+#define X86_FAMILY_ANY 0
+#define X86_MODEL_ANY  0
+#define X86_FEATURE_ANY 0       /* Same as FPU, you can't test for that */
+#define IPACK_ANY_FORMAT 0xff
+#define IPACK_ANY_ID (~0)
+struct ipack_device_id {
+        __u8  format;                   /* Format version or IPACK_ANY_ID */
+        __u32 vendor;                   /* Vendor ID or IPACK_ANY_ID */
+        __u32 device;                   /* Device ID or IPACK_ANY_ID */
+};
+#define MEI_CL_MODULE_PREFIX "mei:"
+#define MEI_CL_NAME_SIZE 32
+struct mei_cl_device_id {
+        char name[MEI_CL_NAME_SIZE];
+        kernel_ulong_t driver_info;
+};
+/* RapidIO */
+#define RIO_ANY_ID      0xffff
+/**
+ * struct rio_device_id - RIO device identifier
+ * @did: RapidIO device ID
+ * @vid: RapidIO vendor ID
+ * @asm_did: RapidIO assembly device ID
+ * @asm_vid: RapidIO assembly vendor ID
+ *
+ * Identifies a RapidIO device based on both the device/vendor IDs and
+ * the assembly device/vendor IDs.
+ */
+struct rio_device_id {
+        __u16 did, vid;
+        __u16 asm_did, asm_vid;
+};
 #endif /* LINUX_MOD_DEVICETABLE_H */

 /drivers/include/linux/rculist.h
 ,0 → 1,526
+#ifndef _LINUX_RCULIST_H
+#define _LINUX_RCULIST_H
+#ifdef __KERNEL__
+/*
+ * RCU-protected list version
+ */
+#include <linux/list.h>
+//#include <linux/rcupdate.h>
+/*
+ * Why is there no list_empty_rcu()?  Because list_empty() serves this
+ * purpose.  The list_empty() function fetches the RCU-protected pointer
+ * and compares it to the address of the list head, but neither dereferences
+ * this pointer itself nor provides this pointer to the caller.  Therefore,
+ * it is not necessary to use rcu_dereference(), so that list_empty() can
+ * be used anywhere you would want to use a list_empty_rcu().
+ */
+/*
+ * return the ->next pointer of a list_head in an rcu safe
+ * way, we must not access it directly
+ */
+#define list_next_rcu(list)     (*((struct list_head __rcu **)(&(list)->next)))
+/*
+ * Insert a new entry between two known consecutive entries.
+ *
+ * This is only for internal list manipulation where we know
+ * the prev/next entries already!
+ */
+#ifndef CONFIG_DEBUG_LIST
+static inline void __list_add_rcu(struct list_head *new,
+                struct list_head *prev, struct list_head *next)
+{
+        new->next = next;
+        new->prev = prev;
+        rcu_assign_pointer(list_next_rcu(prev), new);
+        next->prev = new;
+}
+#else
+extern void __list_add_rcu(struct list_head *new,
+                struct list_head *prev, struct list_head *next);
+#endif
+/**
+ * list_add_rcu - add a new entry to rcu-protected list
+ * @new: new entry to be added
+ * @head: list head to add it after
+ *
+ * Insert a new entry after the specified head.
+ * This is good for implementing stacks.
+ *
+ * The caller must take whatever precautions are necessary
+ * (such as holding appropriate locks) to avoid racing
+ * with another list-mutation primitive, such as list_add_rcu()
+ * or list_del_rcu(), running on this same list.
+ * However, it is perfectly legal to run concurrently with
+ * the _rcu list-traversal primitives, such as
+ * list_for_each_entry_rcu().
+ */
+static inline void list_add_rcu(struct list_head *new, struct list_head *head)
+{
+        __list_add_rcu(new, head, head->next);
+}
+/**
+ * list_add_tail_rcu - add a new entry to rcu-protected list
+ * @new: new entry to be added
+ * @head: list head to add it before
+ *
+ * Insert a new entry before the specified head.
+ * This is useful for implementing queues.
+ *
+ * The caller must take whatever precautions are necessary
+ * (such as holding appropriate locks) to avoid racing
+ * with another list-mutation primitive, such as list_add_tail_rcu()
+ * or list_del_rcu(), running on this same list.
+ * However, it is perfectly legal to run concurrently with
+ * the _rcu list-traversal primitives, such as
+ * list_for_each_entry_rcu().
+ */
+static inline void list_add_tail_rcu(struct list_head *new,
+                                        struct list_head *head)
+{
+        __list_add_rcu(new, head->prev, head);
+}
+/**
+ * list_del_rcu - deletes entry from list without re-initialization
+ * @entry: the element to delete from the list.
+ *
+ * Note: list_empty() on entry does not return true after this,
+ * the entry is in an undefined state. It is useful for RCU based
+ * lockfree traversal.
+ *
+ * In particular, it means that we can not poison the forward
+ * pointers that may still be used for walking the list.
+ *
+ * The caller must take whatever precautions are necessary
+ * (such as holding appropriate locks) to avoid racing
+ * with another list-mutation primitive, such as list_del_rcu()
+ * or list_add_rcu(), running on this same list.
+ * However, it is perfectly legal to run concurrently with
+ * the _rcu list-traversal primitives, such as
+ * list_for_each_entry_rcu().
+ *
+ * Note that the caller is not permitted to immediately free
+ * the newly deleted entry.  Instead, either synchronize_rcu()
+ * or call_rcu() must be used to defer freeing until an RCU
+ * grace period has elapsed.
+ */
+static inline void list_del_rcu(struct list_head *entry)
+{
+        __list_del_entry(entry);
+        entry->prev = LIST_POISON2;
+}
+/**
+ * hlist_del_init_rcu - deletes entry from hash list with re-initialization
+ * @n: the element to delete from the hash list.
+ *
+ * Note: list_unhashed() on the node return true after this. It is
+ * useful for RCU based read lockfree traversal if the writer side
+ * must know if the list entry is still hashed or already unhashed.
+ *
+ * In particular, it means that we can not poison the forward pointers
+ * that may still be used for walking the hash list and we can only
+ * zero the pprev pointer so list_unhashed() will return true after
+ * this.
+ *
+ * The caller must take whatever precautions are necessary (such as
+ * holding appropriate locks) to avoid racing with another
+ * list-mutation primitive, such as hlist_add_head_rcu() or
+ * hlist_del_rcu(), running on this same list.  However, it is
+ * perfectly legal to run concurrently with the _rcu list-traversal
+ * primitives, such as hlist_for_each_entry_rcu().
+ */
+static inline void hlist_del_init_rcu(struct hlist_node *n)
+{
+        if (!hlist_unhashed(n)) {
+                __hlist_del(n);
+                n->pprev = NULL;
+        }
+}
+/**
+ * list_replace_rcu - replace old entry by new one
+ * @old : the element to be replaced
+ * @new : the new element to insert
+ *
+ * The @old entry will be replaced with the @new entry atomically.
+ * Note: @old should not be empty.
+ */
+static inline void list_replace_rcu(struct list_head *old,
+                                struct list_head *new)
+{
+        new->next = old->next;
+        new->prev = old->prev;
+        rcu_assign_pointer(list_next_rcu(new->prev), new);
+        new->next->prev = new;
+        old->prev = LIST_POISON2;
+}
+/**
+ * list_splice_init_rcu - splice an RCU-protected list into an existing list.
+ * @list:       the RCU-protected list to splice
+ * @head:       the place in the list to splice the first list into
+ * @sync:       function to sync: synchronize_rcu(), synchronize_sched(), ...
+ *
+ * @head can be RCU-read traversed concurrently with this function.
+ *
+ * Note that this function blocks.
+ *
+ * Important note: the caller must take whatever action is necessary to
+ *      prevent any other updates to @head.  In principle, it is possible
+ *      to modify the list as soon as sync() begins execution.
+ *      If this sort of thing becomes necessary, an alternative version
+ *      based on call_rcu() could be created.  But only if -really-
+ *      needed -- there is no shortage of RCU API members.
+ */
+static inline void list_splice_init_rcu(struct list_head *list,
+                                        struct list_head *head,
+                                        void (*sync)(void))
+{
+        struct list_head *first = list->next;
+        struct list_head *last = list->prev;
+        struct list_head *at = head->next;
+        if (list_empty(list))
+                return;
+        /* "first" and "last" tracking list, so initialize it. */
+        INIT_LIST_HEAD(list);
+        /*
+         * At this point, the list body still points to the source list.
+         * Wait for any readers to finish using the list before splicing
+         * the list body into the new list.  Any new readers will see
+         * an empty list.
+         */
+        sync();
+        /*
+         * Readers are finished with the source list, so perform splice.
+         * The order is important if the new list is global and accessible
+         * to concurrent RCU readers.  Note that RCU readers are not
+         * permitted to traverse the prev pointers without excluding
+         * this function.
+         */
+        last->next = at;
+        rcu_assign_pointer(list_next_rcu(head), first);
+        first->prev = head;
+        at->prev = last;
+}
+/**
+ * list_entry_rcu - get the struct for this entry
+ * @ptr:        the &struct list_head pointer.
+ * @type:       the type of the struct this is embedded in.
+ * @member:     the name of the list_struct within the struct.
+ *
+ * This primitive may safely run concurrently with the _rcu list-mutation
+ * primitives such as list_add_rcu() as long as it's guarded by rcu_read_lock().
+ */
+#define list_entry_rcu(ptr, type, member) \
+        ({typeof (*ptr) __rcu *__ptr = (typeof (*ptr) __rcu __force *)ptr; \
+         container_of((typeof(ptr))rcu_dereference_raw(__ptr), type, member); \
+        })
+/**
+ * Where are list_empty_rcu() and list_first_entry_rcu()?
+ *
+ * Implementing those functions following their counterparts list_empty() and
+ * list_first_entry() is not advisable because they lead to subtle race
+ * conditions as the following snippet shows:
+ *
+ * if (!list_empty_rcu(mylist)) {
+ *      struct foo *bar = list_first_entry_rcu(mylist, struct foo, list_member);
+ *      do_something(bar);
+ * }
+ *
+ * The list may not be empty when list_empty_rcu checks it, but it may be when
+ * list_first_entry_rcu rereads the ->next pointer.
+ *
+ * Rereading the ->next pointer is not a problem for list_empty() and
+ * list_first_entry() because they would be protected by a lock that blocks
+ * writers.
+ *
+ * See list_first_or_null_rcu for an alternative.
+ */
+/**
+ * list_first_or_null_rcu - get the first element from a list
+ * @ptr:        the list head to take the element from.
+ * @type:       the type of the struct this is embedded in.
+ * @member:     the name of the list_struct within the struct.
+ *
+ * Note that if the list is empty, it returns NULL.
+ *
+ * This primitive may safely run concurrently with the _rcu list-mutation
+ * primitives such as list_add_rcu() as long as it's guarded by rcu_read_lock().
+ */
+#define list_first_or_null_rcu(ptr, type, member) \
+        ({struct list_head *__ptr = (ptr); \
+          struct list_head __rcu *__next = list_next_rcu(__ptr); \
+          likely(__ptr != __next) ? container_of(__next, type, member) : NULL; \
+        })
+/**
+ * list_for_each_entry_rcu      -       iterate over rcu list of given type
+ * @pos:        the type * to use as a loop cursor.
+ * @head:       the head for your list.
+ * @member:     the name of the list_struct within the struct.
+ *
+ * This list-traversal primitive may safely run concurrently with
+ * the _rcu list-mutation primitives such as list_add_rcu()
+ * as long as the traversal is guarded by rcu_read_lock().
+ */
+#define list_for_each_entry_rcu(pos, head, member) \
+        for (pos = list_entry_rcu((head)->next, typeof(*pos), member); \
+                &pos->member != (head); \
+                pos = list_entry_rcu(pos->member.next, typeof(*pos), member))
+/**
+ * list_for_each_entry_continue_rcu - continue iteration over list of given type
+ * @pos:        the type * to use as a loop cursor.
+ * @head:       the head for your list.
+ * @member:     the name of the list_struct within the struct.
+ *
+ * Continue to iterate over list of given type, continuing after
+ * the current position.
+ */
+#define list_for_each_entry_continue_rcu(pos, head, member)             \
+        for (pos = list_entry_rcu(pos->member.next, typeof(*pos), member); \
+             &pos->member != (head);    \
+             pos = list_entry_rcu(pos->member.next, typeof(*pos), member))
+/**
+ * hlist_del_rcu - deletes entry from hash list without re-initialization
+ * @n: the element to delete from the hash list.
+ *
+ * Note: list_unhashed() on entry does not return true after this,
+ * the entry is in an undefined state. It is useful for RCU based
+ * lockfree traversal.
+ *
+ * In particular, it means that we can not poison the forward
+ * pointers that may still be used for walking the hash list.
+ *
+ * The caller must take whatever precautions are necessary
+ * (such as holding appropriate locks) to avoid racing
+ * with another list-mutation primitive, such as hlist_add_head_rcu()
+ * or hlist_del_rcu(), running on this same list.
+ * However, it is perfectly legal to run concurrently with
+ * the _rcu list-traversal primitives, such as
+ * hlist_for_each_entry().
+ */
+static inline void hlist_del_rcu(struct hlist_node *n)
+{
+        __hlist_del(n);
+        n->pprev = LIST_POISON2;
+}
+/**
+ * hlist_replace_rcu - replace old entry by new one
+ * @old : the element to be replaced
+ * @new : the new element to insert
+ *
+ * The @old entry will be replaced with the @new entry atomically.
+ */
+static inline void hlist_replace_rcu(struct hlist_node *old,
+                                        struct hlist_node *new)
+{
+        struct hlist_node *next = old->next;
+        new->next = next;
+        new->pprev = old->pprev;
+        rcu_assign_pointer(*(struct hlist_node __rcu **)new->pprev, new);
+        if (next)
+                new->next->pprev = &new->next;
+        old->pprev = LIST_POISON2;
+}
+/*
+ * return the first or the next element in an RCU protected hlist
+ */
+#define hlist_first_rcu(head)   (*((struct hlist_node __rcu **)(&(head)->first)))
+#define hlist_next_rcu(node)    (*((struct hlist_node __rcu **)(&(node)->next)))
+#define hlist_pprev_rcu(node)   (*((struct hlist_node __rcu **)((node)->pprev)))
+/**
+ * hlist_add_head_rcu
+ * @n: the element to add to the hash list.
+ * @h: the list to add to.
+ *
+ * Description:
+ * Adds the specified element to the specified hlist,
+ * while permitting racing traversals.
+ *
+ * The caller must take whatever precautions are necessary
+ * (such as holding appropriate locks) to avoid racing
+ * with another list-mutation primitive, such as hlist_add_head_rcu()
+ * or hlist_del_rcu(), running on this same list.
+ * However, it is perfectly legal to run concurrently with
+ * the _rcu list-traversal primitives, such as
+ * hlist_for_each_entry_rcu(), used to prevent memory-consistency
+ * problems on Alpha CPUs.  Regardless of the type of CPU, the
+ * list-traversal primitive must be guarded by rcu_read_lock().
+ */
+static inline void hlist_add_head_rcu(struct hlist_node *n,
+                                        struct hlist_head *h)
+{
+        struct hlist_node *first = h->first;
+        n->next = first;
+        n->pprev = &h->first;
+        rcu_assign_pointer(hlist_first_rcu(h), n);
+        if (first)
+                first->pprev = &n->next;
+}
+/**
+ * hlist_add_before_rcu
+ * @n: the new element to add to the hash list.
+ * @next: the existing element to add the new element before.
+ *
+ * Description:
+ * Adds the specified element to the specified hlist
+ * before the specified node while permitting racing traversals.
+ *
+ * The caller must take whatever precautions are necessary
+ * (such as holding appropriate locks) to avoid racing
+ * with another list-mutation primitive, such as hlist_add_head_rcu()
+ * or hlist_del_rcu(), running on this same list.
+ * However, it is perfectly legal to run concurrently with
+ * the _rcu list-traversal primitives, such as
+ * hlist_for_each_entry_rcu(), used to prevent memory-consistency
+ * problems on Alpha CPUs.
+ */
+static inline void hlist_add_before_rcu(struct hlist_node *n,
+                                        struct hlist_node *next)
+{
+        n->pprev = next->pprev;
+        n->next = next;
+        rcu_assign_pointer(hlist_pprev_rcu(n), n);
+        next->pprev = &n->next;
+}
+/**
+ * hlist_add_after_rcu
+ * @prev: the existing element to add the new element after.
+ * @n: the new element to add to the hash list.
+ *
+ * Description:
+ * Adds the specified element to the specified hlist
+ * after the specified node while permitting racing traversals.
+ *
+ * The caller must take whatever precautions are necessary
+ * (such as holding appropriate locks) to avoid racing
+ * with another list-mutation primitive, such as hlist_add_head_rcu()
+ * or hlist_del_rcu(), running on this same list.
+ * However, it is perfectly legal to run concurrently with
+ * the _rcu list-traversal primitives, such as
+ * hlist_for_each_entry_rcu(), used to prevent memory-consistency
+ * problems on Alpha CPUs.
+ */
+static inline void hlist_add_after_rcu(struct hlist_node *prev,
+                                       struct hlist_node *n)
+{
+        n->next = prev->next;
+        n->pprev = &prev->next;
+        rcu_assign_pointer(hlist_next_rcu(prev), n);
+        if (n->next)
+                n->next->pprev = &n->next;
+}
+#define __hlist_for_each_rcu(pos, head)                         \
+        for (pos = rcu_dereference(hlist_first_rcu(head));      \
+             pos;                                               \
+             pos = rcu_dereference(hlist_next_rcu(pos)))
+/**
+ * hlist_for_each_entry_rcu - iterate over rcu list of given type
+ * @pos:        the type * to use as a loop cursor.
+ * @head:       the head for your list.
+ * @member:     the name of the hlist_node within the struct.
+ *
+ * This list-traversal primitive may safely run concurrently with
+ * the _rcu list-mutation primitives such as hlist_add_head_rcu()
+ * as long as the traversal is guarded by rcu_read_lock().
+ */
+#define hlist_for_each_entry_rcu(pos, head, member)                     \
+        for (pos = hlist_entry_safe (rcu_dereference_raw(hlist_first_rcu(head)),\
+                        typeof(*(pos)), member);                        \
+                pos;                                                    \
+                pos = hlist_entry_safe(rcu_dereference_raw(hlist_next_rcu(\
+                        &(pos)->member)), typeof(*(pos)), member))
+/**
+ * hlist_for_each_entry_rcu_notrace - iterate over rcu list of given type (for tracing)
+ * @pos:        the type * to use as a loop cursor.
+ * @head:       the head for your list.
+ * @member:     the name of the hlist_node within the struct.
+ *
+ * This list-traversal primitive may safely run concurrently with
+ * the _rcu list-mutation primitives such as hlist_add_head_rcu()
+ * as long as the traversal is guarded by rcu_read_lock().
+ *
+ * This is the same as hlist_for_each_entry_rcu() except that it does
+ * not do any RCU debugging or tracing.
+ */
+#define hlist_for_each_entry_rcu_notrace(pos, head, member)                     \
+        for (pos = hlist_entry_safe (rcu_dereference_raw_notrace(hlist_first_rcu(head)),\
+                        typeof(*(pos)), member);                        \
+                pos;                                                    \
+                pos = hlist_entry_safe(rcu_dereference_raw_notrace(hlist_next_rcu(\
+                        &(pos)->member)), typeof(*(pos)), member))
+/**
+ * hlist_for_each_entry_rcu_bh - iterate over rcu list of given type
+ * @pos:        the type * to use as a loop cursor.
+ * @head:       the head for your list.
+ * @member:     the name of the hlist_node within the struct.
+ *
+ * This list-traversal primitive may safely run concurrently with
+ * the _rcu list-mutation primitives such as hlist_add_head_rcu()
+ * as long as the traversal is guarded by rcu_read_lock().
+ */
+#define hlist_for_each_entry_rcu_bh(pos, head, member)                  \
+        for (pos = hlist_entry_safe(rcu_dereference_bh(hlist_first_rcu(head)),\
+                        typeof(*(pos)), member);                        \
+                pos;                                                    \
+                pos = hlist_entry_safe(rcu_dereference_bh(hlist_next_rcu(\
+                        &(pos)->member)), typeof(*(pos)), member))
+/**
+ * hlist_for_each_entry_continue_rcu - iterate over a hlist continuing after current point
+ * @pos:        the type * to use as a loop cursor.
+ * @member:     the name of the hlist_node within the struct.
+ */
+#define hlist_for_each_entry_continue_rcu(pos, member)                  \
+        for (pos = hlist_entry_safe(rcu_dereference((pos)->member.next),\
+                        typeof(*(pos)), member);                        \
+             pos;                                                       \
+             pos = hlist_entry_safe(rcu_dereference((pos)->member.next),\
+                        typeof(*(pos)), member))
+/**
+ * hlist_for_each_entry_continue_rcu_bh - iterate over a hlist continuing after current point
+ * @pos:        the type * to use as a loop cursor.
+ * @member:     the name of the hlist_node within the struct.
+ */
+#define hlist_for_each_entry_continue_rcu_bh(pos, member)               \
+        for (pos = hlist_entry_safe(rcu_dereference_bh((pos)->member.next),\
+                        typeof(*(pos)), member);                        \
+             pos;                                                       \
+             pos = hlist_entry_safe(rcu_dereference_bh((pos)->member.next),\
+                        typeof(*(pos)), member))
+#endif  /* __KERNEL__ */
+#endif

 /drivers/include/linux/slab.h
 ,3 → 1,14
+/*
+ * Written by Mark Hemment, 1996 (markhe@nextd.demon.co.uk).
+ *
+ * (C) SGI 2006, Christoph Lameter
+ *      Cleaned up and restructured to ease the addition of alternative
+ *      implementations of SLAB allocators.
+ */
+#ifndef _LINUX_SLAB_H
+#define _LINUX_SLAB_H
 #include <errno.h>
 // stub
+#endif  /* _LINUX_SLAB_H */

 /drivers/include/linux/spinlock_up.h
 ,7 → 14,10
  * In the debug case, 1 means unlocked, 0 means locked. (the values
  * are inverted, to catch initialization bugs)
  *
- * No atomicity anywhere, we are on UP.
+ * No atomicity anywhere, we are on UP. However, we still need
+ * the compiler barriers, because we do not want the compiler to
+ * move potentially faulting instructions (notably user accesses)
+ * into the locked sequence, resulting in non-atomic execution.
  */
 #ifdef CONFIG_DEBUG_SPINLOCK

 /drivers/include/linux/string.h
 ,4 → 142,15
 extern size_t memweight(const void *ptr, size_t bytes);
+/**
+ * kbasename - return the last part of a pathname.
+ *
+ * @path: path to extract the filename from.
+ */
+static inline const char *kbasename(const char *path)
+{
+        const char *tail = strrchr(path, '/');
+        return tail ? tail + 1 : path;
+}
 #endif /* _LINUX_STRING_H_ */

 /drivers/include/linux/time.h
 ,0 → 1,270
+#ifndef _LINUX_TIME_H
+#define _LINUX_TIME_H
+//# include <linux/cache.h>
+//# include <linux/seqlock.h>
+# include <linux/math64.h>
+//#include <uapi/linux/time.h>
+extern struct timezone sys_tz;
+/* Parameters used to convert the timespec values: */
+#define MSEC_PER_SEC    1000L
+#define USEC_PER_MSEC   1000L
+#define NSEC_PER_USEC   1000L
+#define NSEC_PER_MSEC   1000000L
+#define USEC_PER_SEC    1000000L
+#define NSEC_PER_SEC    1000000000L
+#define FSEC_PER_SEC    1000000000000000LL
+#define TIME_T_MAX      (time_t)((1UL << ((sizeof(time_t) << 3) - 1)) - 1)
+static inline int timespec_equal(const struct timespec *a,
+                                 const struct timespec *b)
+{
+        return (a->tv_sec == b->tv_sec) && (a->tv_nsec == b->tv_nsec);
+}
+/*
+ * lhs < rhs:  return <0
+ * lhs == rhs: return 0
+ * lhs > rhs:  return >0
+ */
+static inline int timespec_compare(const struct timespec *lhs, const struct timespec *rhs)
+{
+        if (lhs->tv_sec < rhs->tv_sec)
+                return -1;
+        if (lhs->tv_sec > rhs->tv_sec)
+                return 1;
+        return lhs->tv_nsec - rhs->tv_nsec;
+}
+static inline int timeval_compare(const struct timeval *lhs, const struct timeval *rhs)
+{
+        if (lhs->tv_sec < rhs->tv_sec)
+                return -1;
+        if (lhs->tv_sec > rhs->tv_sec)
+                return 1;
+        return lhs->tv_usec - rhs->tv_usec;
+}
+extern unsigned long mktime(const unsigned int year, const unsigned int mon,
+                            const unsigned int day, const unsigned int hour,
+                            const unsigned int min, const unsigned int sec);
+extern void set_normalized_timespec(struct timespec *ts, time_t sec, s64 nsec);
+/*
+ * timespec_add_safe assumes both values are positive and checks
+ * for overflow. It will return TIME_T_MAX if the reutrn would be
+ * smaller then either of the arguments.
+ */
+extern struct timespec timespec_add_safe(const struct timespec lhs,
+                                         const struct timespec rhs);
+static inline struct timespec timespec_add(struct timespec lhs,
+                                                struct timespec rhs)
+{
+        struct timespec ts_delta;
+        set_normalized_timespec(&ts_delta, lhs.tv_sec + rhs.tv_sec,
+                                lhs.tv_nsec + rhs.tv_nsec);
+        return ts_delta;
+}
+/*
+ * sub = lhs - rhs, in normalized form
+ */
+static inline struct timespec timespec_sub(struct timespec lhs,
+                                                struct timespec rhs)
+{
+        struct timespec ts_delta;
+        set_normalized_timespec(&ts_delta, lhs.tv_sec - rhs.tv_sec,
+                                lhs.tv_nsec - rhs.tv_nsec);
+        return ts_delta;
+}
+#define KTIME_MAX                       ((s64)~((u64)1 << 63))
+#if (BITS_PER_LONG == 64)
+# define KTIME_SEC_MAX                  (KTIME_MAX / NSEC_PER_SEC)
+#else
+# define KTIME_SEC_MAX                  LONG_MAX
+#endif
+/*
+ * Returns true if the timespec is norm, false if denorm:
+ */
+static inline bool timespec_valid(const struct timespec *ts)
+{
+        /* Dates before 1970 are bogus */
+        if (ts->tv_sec < 0)
+                return false;
+        /* Can't have more nanoseconds then a second */
+        if ((unsigned long)ts->tv_nsec >= NSEC_PER_SEC)
+                return false;
+        return true;
+}
+static inline bool timespec_valid_strict(const struct timespec *ts)
+{
+        if (!timespec_valid(ts))
+                return false;
+        /* Disallow values that could overflow ktime_t */
+        if ((unsigned long long)ts->tv_sec >= KTIME_SEC_MAX)
+                return false;
+        return true;
+}
+extern bool persistent_clock_exist;
+static inline bool has_persistent_clock(void)
+{
+        return persistent_clock_exist;
+}
+extern void read_persistent_clock(struct timespec *ts);
+extern void read_boot_clock(struct timespec *ts);
+extern int persistent_clock_is_local;
+extern int update_persistent_clock(struct timespec now);
+void timekeeping_init(void);
+extern int timekeeping_suspended;
+unsigned long get_seconds(void);
+struct timespec current_kernel_time(void);
+struct timespec __current_kernel_time(void); /* does not take xtime_lock */
+struct timespec get_monotonic_coarse(void);
+void get_xtime_and_monotonic_and_sleep_offset(struct timespec *xtim,
+                                struct timespec *wtom, struct timespec *sleep);
+void timekeeping_inject_sleeptime(struct timespec *delta);
+#define CURRENT_TIME            (current_kernel_time())
+#define CURRENT_TIME_SEC        ((struct timespec) { get_seconds(), 0 })
+/* Some architectures do not supply their own clocksource.
+ * This is mainly the case in architectures that get their
+ * inter-tick times by reading the counter on their interval
+ * timer. Since these timers wrap every tick, they're not really
+ * useful as clocksources. Wrapping them to act like one is possible
+ * but not very efficient. So we provide a callout these arches
+ * can implement for use with the jiffies clocksource to provide
+ * finer then tick granular time.
+ */
+#ifdef CONFIG_ARCH_USES_GETTIMEOFFSET
+extern u32 (*arch_gettimeoffset)(void);
+#endif
+extern void do_gettimeofday(struct timeval *tv);
+extern int do_settimeofday(const struct timespec *tv);
+extern int do_sys_settimeofday(const struct timespec *tv,
+                               const struct timezone *tz);
+#define do_posix_clock_monotonic_gettime(ts) ktime_get_ts(ts)
+extern long do_utimes(int dfd, const char __user *filename, struct timespec *times, int flags);
+struct itimerval;
+extern int do_setitimer(int which, struct itimerval *value,
+                        struct itimerval *ovalue);
+extern unsigned int alarm_setitimer(unsigned int seconds);
+extern int do_getitimer(int which, struct itimerval *value);
+extern int __getnstimeofday(struct timespec *tv);
+extern void getnstimeofday(struct timespec *tv);
+extern void getrawmonotonic(struct timespec *ts);
+extern void getnstime_raw_and_real(struct timespec *ts_raw,
+                struct timespec *ts_real);
+extern void getboottime(struct timespec *ts);
+extern void monotonic_to_bootbased(struct timespec *ts);
+extern void get_monotonic_boottime(struct timespec *ts);
+extern struct timespec timespec_trunc(struct timespec t, unsigned gran);
+extern int timekeeping_valid_for_hres(void);
+extern u64 timekeeping_max_deferment(void);
+extern int timekeeping_inject_offset(struct timespec *ts);
+extern s32 timekeeping_get_tai_offset(void);
+extern void timekeeping_set_tai_offset(s32 tai_offset);
+extern void timekeeping_clocktai(struct timespec *ts);
+struct tms;
+extern void do_sys_times(struct tms *);
+/*
+ * Similar to the struct tm in userspace <time.h>, but it needs to be here so
+ * that the kernel source is self contained.
+ */
+struct tm {
+        /*
+         * the number of seconds after the minute, normally in the range
+         * 0 to 59, but can be up to 60 to allow for leap seconds
+         */
+        int tm_sec;
+        /* the number of minutes after the hour, in the range 0 to 59*/
+        int tm_min;
+        /* the number of hours past midnight, in the range 0 to 23 */
+        int tm_hour;
+        /* the day of the month, in the range 1 to 31 */
+        int tm_mday;
+        /* the number of months since January, in the range 0 to 11 */
+        int tm_mon;
+        /* the number of years since 1900 */
+        long tm_year;
+        /* the number of days since Sunday, in the range 0 to 6 */
+        int tm_wday;
+        /* the number of days since January 1, in the range 0 to 365 */
+        int tm_yday;
+};
+void time_to_tm(time_t totalsecs, int offset, struct tm *result);
+/**
+ * timespec_to_ns - Convert timespec to nanoseconds
+ * @ts:         pointer to the timespec variable to be converted
+ *
+ * Returns the scalar nanosecond representation of the timespec
+ * parameter.
+ */
+static inline s64 timespec_to_ns(const struct timespec *ts)
+{
+        return ((s64) ts->tv_sec * NSEC_PER_SEC) + ts->tv_nsec;
+}
+/**
+ * timeval_to_ns - Convert timeval to nanoseconds
+ * @ts:         pointer to the timeval variable to be converted
+ *
+ * Returns the scalar nanosecond representation of the timeval
+ * parameter.
+ */
+static inline s64 timeval_to_ns(const struct timeval *tv)
+{
+        return ((s64) tv->tv_sec * NSEC_PER_SEC) +
+                tv->tv_usec * NSEC_PER_USEC;
+}
+/**
+ * ns_to_timespec - Convert nanoseconds to timespec
+ * @nsec:       the nanoseconds value to be converted
+ *
+ * Returns the timespec representation of the nsec parameter.
+ */
+extern struct timespec ns_to_timespec(const s64 nsec);
+/**
+ * ns_to_timeval - Convert nanoseconds to timeval
+ * @nsec:       the nanoseconds value to be converted
+ *
+ * Returns the timeval representation of the nsec parameter.
+ */
+extern struct timeval ns_to_timeval(const s64 nsec);
+/**
+ * timespec_add_ns - Adds nanoseconds to a timespec
+ * @a:          pointer to timespec to be incremented
+ * @ns:         unsigned nanoseconds value to be added
+ *
+ * This must always be inlined because its used from the x86-64 vdso,
+ * which cannot call other kernel functions.
+ */
+static __always_inline void timespec_add_ns(struct timespec *a, u64 ns)
+{
+        a->tv_sec += __iter_div_u64_rem(a->tv_nsec + ns, NSEC_PER_SEC, &ns);
+        a->tv_nsec = ns;
+}
+#endif

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