/*
* Copyright (c) 2003-2007 Jakub Jermar
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* - Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* - Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* - The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
/** @addtogroup arm32
* @{
*/
/** @file
*/
#ifndef KERN_arm32_TYPES_H_
#define KERN_arm32_TYPES_H_
#define NULL 0
#define false 0
#define true 1
typedef signed char int8_t;
typedef signed short int16_t;
typedef signed long int32_t;
typedef signed long long int64_t;
typedef unsigned char uint8_t;
typedef unsigned short uint16_t;
typedef unsigned long uint32_t;
typedef unsigned long long uint64_t;
typedef uint32_t size_t;
typedef uint32_t count_t;
typedef uint32_t index_t;
typedef uint32_t uintptr_t;
typedef uint32_t pfn_t;
typedef uint32_t ipl_t;
typedef uint32_t unative_t;
typedef int32_t native_t;
typedef uint8_t bool;
typedef uint64_t task_id_t;
typedef uint32_t context_id_t;
typedef int32_t inr_t;
typedef int32_t devno_t;
/** Page Table Entry. */
typedef struct {
/**PageTables are so different that we have different types
* for level 0 and level1 page table entries
*/
unsigned dummy : 32;
} pte_t;
typedef struct {
unsigned descriptor_type : 2;
unsigned machine_depend : 3; // Alf: ???? v Architecture previev neni vyznam definovan
unsigned domain : 4;
unsigned should_be_zero : 1;
unsigned coarse_table_addr : 22;
} __attribute__ ((packed)) pte_level0_t;
//TODO Alf: Comments
typedef struct {
unsigned descriptor_type : 2;
unsigned bufferable : 1;
unsigned cacheable : 1;
unsigned access_permission_0 : 2;
unsigned access_permission_1 : 2;
unsigned access_permission_2 : 2;
unsigned access_permission_3 : 2;
unsigned frame_base_addr : 20;
} __attribute__ ((packed)) pte_level1_t;
/// Page table level 1 access permission constants
/// User no acess, kernel no access
#define pte_ap_user_no_kernel_no 0
/// User no acess, kernel read/write
#define pte_ap_user_no_kernel_rw 1
/// User read only, kernel read/write
#define pte_ap_user_ro_kernel_rw 2
/// User read/write, kernel read/write
#define pte_ap_user_rw_kernel_rw 2
/// Value of descriptor_type in pte_level0_t and pte_level1_t that signal not present flag
#define pte_descriptor_not_preset 0
/// Value of descriptor_type in pte_level0_t that signal a coarse page table format
#define pte_descriptor_coarse_table 1
/// Value of descriptor_type in pte_level1_t that signal a small page table entry format
#define pte_descriptor_small_page 2
#endif
/** @}
*/