1 files changed, 0 insertions, 127 deletions
diff --git a/gpxe/src/arch/i386/include/realmode.h b/gpxe/src/arch/i386/include/realmode.h
deleted file mode 100644
index a0a830b9..00000000
--- a/gpxe/src/arch/i386/include/realmode.h
+++ /dev/null
@@ -1,127 +0,0 @@
-#ifndef REALMODE_H
-#define REALMODE_H
-
-#include <stdint.h>
-#include <registers.h>
-#include <gpxe/uaccess.h>
-
-/*
- * Data structures and type definitions
- *
- */
-
-FILE_LICENCE ( GPL2_OR_LATER );
-
-/*
- * Declaration of variables in .data16
- *
- * To place a variable in the .data16 segment, declare it using the
- * pattern:
- *
- *   int __data16 ( foo );
- *   #define foo __use_data16 ( foo );
- *
- *   extern uint32_t __data16 ( bar );
- *   #define bar __use_data16 ( bar );
- *
- *   static long __data16 ( baz ) = 0xff000000UL;
- *   #define baz __use_data16 ( baz );
- *
- * i.e. take a normal declaration, add __data16() around the variable
- * name, and add a line saying "#define <name> __use_data16 ( <name> )
- *
- * You can then access them just like any other variable, for example
- *
- *   int x = foo + bar;
- *
- * This magic is achieved at a cost of only around 7 extra bytes per
- * group of accesses to .data16 variables.  When using KEEP_IT_REAL,
- * there is no extra cost.
- *
- * You should place variables in .data16 when they need to be accessed
- * by real-mode code.  Real-mode assembly (e.g. as created by
- * REAL_CODE()) can access these variables via the usual data segment.
- * You can therefore write something like
- *
- *   static uint16_t __data16 ( foo );
- *   #define foo __use_data16 ( foo )
- *
- *   int bar ( void ) {
- *     __asm__ __volatile__ ( REAL_CODE ( "int $0xff\n\t"
- *                                        "movw %ax, foo" )
- *                            : : );
- *     return foo;
- *   }
- *
- * Variables may also be placed in .text16 using __text16 and
- * __use_text16.  Some variables (e.g. chained interrupt vectors) fit
- * most naturally in .text16; most should be in .data16.
- *
- * If you have only a pointer to a magic symbol within .data16 or
- * .text16, rather than the symbol itself, you can attempt to extract
- * the underlying symbol name using __from_data16() or
- * __from_text16().  This is not for the faint-hearted; check the
- * assembler output to make sure that it's doing the right thing.
- */
-
-/**
- * Copy data to base memory
- *
- * @v dest_seg		Destination segment
- * @v dest_off		Destination offset
- * @v src		Source
- * @v len		Length
- */
-static inline __always_inline void
-copy_to_real ( unsigned int dest_seg, unsigned int dest_off,
-	       void *src, size_t n ) {
-	copy_to_user ( real_to_user ( dest_seg, dest_off ), 0, src, n );
-}
-
-/**
- * Copy data to base memory
- *
- * @v dest		Destination
- * @v src_seg		Source segment
- * @v src_off		Source offset
- * @v len		Length
- */
-static inline __always_inline void
-copy_from_real ( void *dest, unsigned int src_seg,
-		 unsigned int src_off, size_t n ) {
-	copy_from_user ( dest, real_to_user ( src_seg, src_off ), 0, n );
-}
-
-/**
- * Write a single variable to base memory
- *
- * @v var		Variable to write
- * @v dest_seg		Destination segment
- * @v dest_off		Destination offset
- */
-#define put_real( var, dest_seg, dest_off ) \
-	copy_to_real ( (dest_seg), (dest_off), &(var), sizeof (var) )
-
-/**
- * Read a single variable from base memory
- *
- * @v var		Variable to read
- * @v src_seg		Source segment
- * @v src_off		Source offset
- */
-#define get_real( var, src_seg, src_off ) \
-	copy_from_real ( &(var), (src_seg), (src_off), sizeof (var) )
-
-/*
- * REAL_CODE ( asm_code_str )
- *
- * This can be used in inline assembly to create a fragment of code
- * that will execute in real mode.  For example: to write a character
- * to the BIOS console using INT 10, you would do something like:
- *
- *     __asm__ __volatile__ ( REAL_CODE ( "int $0x16" )
- *			      : "=a" ( character ) : "a" ( 0x0000 ) );
- *
- */
-
-#endif /* REALMODE_H */