1 files changed, 42 insertions, 9 deletions

diff --git a/include/linux/fb.h b/include/linux/fb.h
index 369767bd873e..f0268deca658 100644
--- a/include/linux/fb.h
+++ b/include/linux/fb.h
@@ -3,8 +3,9 @@
 
 #include <linux/types.h>
 #include <linux/i2c.h>
-
-struct dentry;
+#ifdef __KERNEL__
+#include <linux/kgdb.h>
+#endif /* __KERNEL__ */
 
 /* Definitions of frame buffers                                         */
 
@@ -37,7 +38,7 @@ struct dentry;
 #define FBIOGET_HWCINFO         0x4616
 #define FBIOPUT_MODEINFO        0x4617
 #define FBIOGET_DISPINFO        0x4618
-
+#define FBIO_WAITFORVSYNC       _IOW('F', 0x20, __u32)
 
 #define FB_TYPE_PACKED_PIXELS           0       /* Packed Pixels        */
 #define FB_TYPE_PLANES                  1       /* Non interleaved planes */
@@ -403,6 +404,7 @@ struct fb_cursor {
 #include <linux/notifier.h>
 #include <linux/list.h>
 #include <linux/backlight.h>
+#include <linux/slab.h>
 #include <asm/io.h>
 
 struct vm_area_struct;
@@ -543,6 +545,8 @@ struct fb_cursor_user {
 #define FB_EVENT_GET_REQ                0x0D
 /*      Unbind from the console if possible */
 #define FB_EVENT_FB_UNBIND              0x0E
+/*      CONSOLE-SPECIFIC: remap all consoles to new fb - for vga switcheroo */
+#define FB_EVENT_REMAP_ALL_CONSOLE      0x0F
 
 struct fb_event {
         struct fb_info *info;
@@ -606,6 +610,12 @@ struct fb_deferred_io {
  * LOCKING NOTE: those functions must _ALL_ be called with the console
  * semaphore held, this is the only suitable locking mechanism we have
  * in 2.6. Some may be called at interrupt time at this point though.
+ *
+ * The exception to this is the debug related hooks.  Putting the fb
+ * into a debug state (e.g. flipping to the kernel console) and restoring
+ * it must be done in a lock-free manner, so low level drivers should
+ * keep track of the initial console (if applicable) and may need to
+ * perform direct, unlocked hardware writes in these hooks.
  */
 
 struct fb_ops {
@@ -675,6 +685,10 @@ struct fb_ops {
 
         /* teardown any resources to do with this framebuffer */
         void (*fb_destroy)(struct fb_info *info);
+
+        /* called at KDB enter and leave time to prepare the console */
+        int (*fb_debug_enter)(struct fb_info *info);
+        int (*fb_debug_leave)(struct fb_info *info);
 };
 
 #ifdef CONFIG_FB_TILEBLITTING
@@ -785,8 +799,6 @@ struct fb_tile_ops {
 #define FBINFO_MISC_USEREVENT          0x10000 /* event request
                                                   from userspace */
 #define FBINFO_MISC_TILEBLITTING       0x20000 /* use tile blitting */
-#define FBINFO_MISC_FIRMWARE           0x40000 /* a replaceable firmware
-                                                  inited framebuffer */
 
 /* A driver may set this flag to indicate that it does want a set_par to be
  * called every time when fbcon_switch is executed. The advantage is that with
@@ -800,6 +812,8 @@ struct fb_tile_ops {
  */
 #define FBINFO_MISC_ALWAYS_SETPAR   0x40000
 
+/* where the fb is a firmware driver, and can be replaced with a proper one */
+#define FBINFO_MISC_FIRMWARE        0x80000
 /*
  * Host and GPU endianness differ.
  */
@@ -811,6 +825,10 @@ struct fb_tile_ops {
  */
 #define FBINFO_BE_MATH  0x100000
 
+/* report to the VT layer that this fb driver can accept forced console
+   output like oopses */
+#define FBINFO_CAN_FORCE_OUTPUT     0x200000
+
 struct fb_info {
         int node;
         int flags;
@@ -860,10 +878,24 @@ struct fb_info {
         /* we need the PCI or similiar aperture base/size not
            smem_start/size as smem_start may just be an object
            allocated inside the aperture so may not actually overlap */
-        resource_size_t aperture_base;
-        resource_size_t aperture_size;
+        struct apertures_struct {
+                unsigned int count;
+                struct aperture {
+                        resource_size_t base;
+                        resource_size_t size;
+                } ranges[0];
+        } *apertures;
 };
 
+static inline struct apertures_struct *alloc_apertures(unsigned int max_num) {
+        struct apertures_struct *a = kzalloc(sizeof(struct apertures_struct)
+                        + max_num * sizeof(struct aperture), GFP_KERNEL);
+        if (!a)
+                return NULL;
+        a->count = max_num;
+        return a;
+}
+
 #ifdef MODULE
 #define FBINFO_DEFAULT  FBINFO_MODULE
 #else
@@ -956,6 +988,8 @@ extern ssize_t fb_sys_write(struct fb_info *info, const char __user *buf,
 /* drivers/video/fbmem.c */
 extern int register_framebuffer(struct fb_info *fb_info);
 extern int unregister_framebuffer(struct fb_info *fb_info);
+extern void remove_conflicting_framebuffers(struct apertures_struct *a,
+                                const char *name, bool primary);
 extern int fb_prepare_logo(struct fb_info *fb_info, int rotate);
 extern int fb_show_logo(struct fb_info *fb_info, int rotate);
 extern char* fb_get_buffer_offset(struct fb_info *info, struct fb_pixmap *buf, u32 size);
@@ -1000,8 +1034,7 @@ extern void fb_deferred_io_open(struct fb_info *info,
                                 struct inode *inode,
                                 struct file *file);
 extern void fb_deferred_io_cleanup(struct fb_info *info);
-extern int fb_deferred_io_fsync(struct file *file, struct dentry *dentry,
-                                int datasync);
+extern int fb_deferred_io_fsync(struct file *file, int datasync);
 
 static inline bool fb_be_math(struct fb_info *info)
 {