gpxe: delete long since obsolete snapshot of gPXE

gPXE has been deprecated in favor of iPXE for many, many years now.
It is much better than users get it directly from the iPXE project,
since we should no longer need any special modifications for Syslinux
use.

Signed-off-by: H. Peter Anvin <hpa@zytor.com>

1 files changed, 0 insertions, 344 deletions

diff --git a/gpxe/src/include/gpxe/uaccess.h b/gpxe/src/include/gpxe/uaccess.h
deleted file mode 100644
index 5a8f2921..00000000
--- a/gpxe/src/include/gpxe/uaccess.h
+++ /dev/null
@@ -1,344 +0,0 @@
-#ifndef _GPXE_UACCESS_H
-#define _GPXE_UACCESS_H
-
-/**
- * @file
- *
- * Access to external ("user") memory
- *
- * gPXE often needs to transfer data between internal and external
- * buffers.  On i386, the external buffers may require access via a
- * different segment, and the buffer address cannot be encoded into a
- * simple void * pointer.  The @c userptr_t type encapsulates the
- * information needed to identify an external buffer, and the
- * copy_to_user() and copy_from_user() functions provide methods for
- * transferring data between internal and external buffers.
- *
- * Note that userptr_t is an opaque type; in particular, performing
- * arithmetic upon a userptr_t is not allowed.
- *
- */
-
-FILE_LICENCE ( GPL2_OR_LATER );
-
-#include <stdint.h>
-#include <string.h>
-#include <gpxe/api.h>
-#include <config/ioapi.h>
-
-/**
- * A pointer to a user buffer
- *
- */
-typedef unsigned long userptr_t;
-
-/** Equivalent of NULL for user pointers */
-#define UNULL ( ( userptr_t ) 0 )
-
-/**
- * @defgroup uaccess_trivial Trivial user access API implementations
- *
- * User access API implementations that can be used by environments in
- * which virtual addresses allow access to all of memory.
- *
- * @{
- *
- */
-
-/**
- * Convert virtual address to user pointer
- *
- * @v addr		Virtual address
- * @ret userptr		User pointer
- */
-static inline __always_inline userptr_t
-trivial_virt_to_user ( volatile const void *addr ) {
-	return ( ( userptr_t ) addr );
-}
-
-/**
- * Convert user pointer to virtual address
- *
- * @v userptr		User pointer
- * @v offset		Offset from user pointer
- * @ret addr		Virtual address
- *
- * This operation is not available under all memory models.
- */
-static inline __always_inline void *
-trivial_user_to_virt ( userptr_t userptr, off_t offset ) {
-	return ( ( void * ) userptr + offset );
-}
-
-/**
- * Add offset to user pointer
- *
- * @v userptr		User pointer
- * @v offset		Offset
- * @ret userptr		New pointer value
- */
-static inline __always_inline userptr_t
-trivial_userptr_add ( userptr_t userptr, off_t offset ) {
-	return ( userptr + offset );
-}
-
-/**
- * Copy data between user buffers
- *
- * @v dest		Destination
- * @v dest_off		Destination offset
- * @v src		Source
- * @v src_off		Source offset
- * @v len		Length
- */
-static inline __always_inline void
-trivial_memcpy_user ( userptr_t dest, off_t dest_off,
-		      userptr_t src, off_t src_off, size_t len ) {
-	memcpy ( ( ( void * ) dest + dest_off ),
-		 ( ( void * ) src + src_off ), len );
-}
-
-/**
- * Copy data between user buffers, allowing for overlap
- *
- * @v dest		Destination
- * @v dest_off		Destination offset
- * @v src		Source
- * @v src_off		Source offset
- * @v len		Length
- */
-static inline __always_inline void
-trivial_memmove_user ( userptr_t dest, off_t dest_off,
-		       userptr_t src, off_t src_off, size_t len ) {
-	memmove ( ( ( void * ) dest + dest_off ),
-		  ( ( void * ) src + src_off ), len );
-}
-
-/**
- * Fill user buffer with a constant byte
- *
- * @v buffer		User buffer
- * @v offset		Offset within buffer
- * @v c			Constant byte with which to fill
- * @v len		Length
- */
-static inline __always_inline void
-trivial_memset_user ( userptr_t buffer, off_t offset, int c, size_t len ) {
-	memset ( ( ( void * ) buffer + offset ), c, len );
-}
-
-/**
- * Find length of NUL-terminated string in user buffer
- *
- * @v buffer		User buffer
- * @v offset		Offset within buffer
- * @ret len		Length of string (excluding NUL)
- */
-static inline __always_inline size_t
-trivial_strlen_user ( userptr_t buffer, off_t offset ) {
-	return strlen ( ( void * ) buffer + offset );
-}
-
-/**
- * Find character in user buffer
- *
- * @v buffer		User buffer
- * @v offset		Starting offset within buffer
- * @v c			Character to search for
- * @v len		Length of user buffer
- * @ret offset		Offset of character, or <0 if not found
- */
-static inline __always_inline off_t
-trivial_memchr_user ( userptr_t buffer, off_t offset, int c, size_t len ) {
-	void *found;
-
-	found = memchr ( ( ( void * ) buffer + offset ), c, len );
-	return ( found ? ( found - ( void * ) buffer ) : -1 );
-}
-
-/** @} */
-
-/**
- * Calculate static inline user access API function name
- *
- * @v _prefix		Subsystem prefix
- * @v _api_func		API function
- * @ret _subsys_func	Subsystem API function
- */
-#define UACCESS_INLINE( _subsys, _api_func ) \
-	SINGLE_API_INLINE ( UACCESS_PREFIX_ ## _subsys, _api_func )
-
-/**
- * Provide an user access API implementation
- *
- * @v _prefix		Subsystem prefix
- * @v _api_func		API function
- * @v _func		Implementing function
- */
-#define PROVIDE_UACCESS( _subsys, _api_func, _func ) \
-	PROVIDE_SINGLE_API ( UACCESS_PREFIX_ ## _subsys, _api_func, _func )
-
-/**
- * Provide a static inline user access API implementation
- *
- * @v _prefix		Subsystem prefix
- * @v _api_func		API function
- */
-#define PROVIDE_UACCESS_INLINE( _subsys, _api_func ) \
-	PROVIDE_SINGLE_API_INLINE ( UACCESS_PREFIX_ ## _subsys, _api_func )
-
-/* Include all architecture-independent user access API headers */
-#include <gpxe/efi/efi_uaccess.h>
-
-/* Include all architecture-dependent user access API headers */
-#include <bits/uaccess.h>
-
-/**
- * Convert physical address to user pointer
- *
- * @v phys_addr		Physical address
- * @ret userptr		User pointer
- */
-userptr_t phys_to_user ( unsigned long phys_addr );
-
-/**
- * Convert user pointer to physical address
- *
- * @v userptr		User pointer
- * @v offset		Offset from user pointer
- * @ret phys_addr	Physical address
- */
-unsigned long user_to_phys ( userptr_t userptr, off_t offset );
-
-/**
- * Convert virtual address to user pointer
- *
- * @v addr		Virtual address
- * @ret userptr		User pointer
- */
-userptr_t virt_to_user ( volatile const void *addr );
-
-/**
- * Convert user pointer to virtual address
- *
- * @v userptr		User pointer
- * @v offset		Offset from user pointer
- * @ret addr		Virtual address
- *
- * This operation is not available under all memory models.
- */
-void * user_to_virt ( userptr_t userptr, off_t offset );
-
-/**
- * Add offset to user pointer
- *
- * @v userptr		User pointer
- * @v offset		Offset
- * @ret userptr		New pointer value
- */
-userptr_t userptr_add ( userptr_t userptr, off_t offset );
-
-/**
- * Convert virtual address to a physical address
- *
- * @v addr		Virtual address
- * @ret phys_addr	Physical address
- */
-static inline __always_inline unsigned long
-virt_to_phys ( volatile const void *addr ) {
-	return user_to_phys ( virt_to_user ( addr ), 0 );
-}
-
-/**
- * Convert physical address to a virtual address
- *
- * @v addr		Virtual address
- * @ret phys_addr	Physical address
- *
- * This operation is not available under all memory models.
- */
-static inline __always_inline void * phys_to_virt ( unsigned long phys_addr ) {
-	return user_to_virt ( phys_to_user ( phys_addr ), 0 );
-}
-
-/**
- * Copy data between user buffers
- *
- * @v dest		Destination
- * @v dest_off		Destination offset
- * @v src		Source
- * @v src_off		Source offset
- * @v len		Length
- */
-void memcpy_user ( userptr_t dest, off_t dest_off,
-		   userptr_t src, off_t src_off, size_t len );
-
-/**
- * Copy data to user buffer
- *
- * @v dest		Destination
- * @v dest_off		Destination offset
- * @v src		Source
- * @v len		Length
- */
-static inline __always_inline void
-copy_to_user ( userptr_t dest, off_t dest_off, const void *src, size_t len ) {
-	memcpy_user ( dest, dest_off, virt_to_user ( src ), 0, len );
-}
-
-/**
- * Copy data from user buffer
- *
- * @v dest		Destination
- * @v src		Source
- * @v src_off		Source offset
- * @v len		Length
- */
-static inline __always_inline void
-copy_from_user ( void *dest, userptr_t src, off_t src_off, size_t len ) {
-	memcpy_user ( virt_to_user ( dest ), 0, src, src_off, len );
-}
-
-/**
- * Copy data between user buffers, allowing for overlap
- *
- * @v dest		Destination
- * @v dest_off		Destination offset
- * @v src		Source
- * @v src_off		Source offset
- * @v len		Length
- */
-void memmove_user ( userptr_t dest, off_t dest_off,
-		    userptr_t src, off_t src_off, size_t len );
-
-/**
- * Fill user buffer with a constant byte
- *
- * @v userptr		User buffer
- * @v offset		Offset within buffer
- * @v c			Constant byte with which to fill
- * @v len		Length
- */
-void memset_user ( userptr_t userptr, off_t offset, int c, size_t len );
-
-/**
- * Find length of NUL-terminated string in user buffer
- *
- * @v userptr		User buffer
- * @v offset		Offset within buffer
- * @ret len		Length of string (excluding NUL)
- */
-size_t strlen_user ( userptr_t userptr, off_t offset );
-
-/**
- * Find character in user buffer
- *
- * @v userptr		User buffer
- * @v offset		Starting offset within buffer
- * @v c			Character to search for
- * @v len		Length of user buffer
- * @ret offset		Offset of character, or <0 if not found
- */
-off_t memchr_user ( userptr_t userptr, off_t offset, int c, size_t len );
-
-#endif /* _GPXE_UACCESS_H */