c8c3035a4d
- MetalSVM detects the APIC and initializes the APIC timer - If an a APIC is available, the PIC timer will be disabled - SMP is currently not supported git-svn-id: http://svn.lfbs.rwth-aachen.de/svn/scc/trunk/MetalSVM@233 315a16e6-25f9-4109-90ae-ca3045a26c18
83 lines
1.9 KiB
C
83 lines
1.9 KiB
C
/*
|
|
* Copyright 2010 Stefan Lankes, Chair for Operating Systems,
|
|
* RWTH Aachen University
|
|
*
|
|
* Licensed under the Apache License, Version 2.0 (the "License");
|
|
* you may not use this file except in compliance with the License.
|
|
* You may obtain a copy of the License at
|
|
*
|
|
* http://www.apache.org/licenses/LICENSE-2.0
|
|
*
|
|
* Unless required by applicable law or agreed to in writing, software
|
|
* distributed under the License is distributed on an "AS IS" BASIS,
|
|
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
* See the License for the specific language governing permissions and
|
|
* limitations under the License.
|
|
*
|
|
* This file is part of MetalSVM.
|
|
*/
|
|
|
|
#ifndef __ARCH_APIC_H__
|
|
#define __ARCH_APIC_H__
|
|
|
|
#include <metalsvm/stddef.h>
|
|
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif
|
|
|
|
/* MP Floating Pointer Structure */
|
|
typedef struct {
|
|
uint32_t signature;
|
|
uint32_t mp_config;
|
|
uint8_t length;
|
|
uint8_t version;
|
|
uint8_t checksum;
|
|
uint8_t features[5];
|
|
} __attribute__ ((packed)) apic_mp_t;
|
|
|
|
/* MP Configuration Table */
|
|
typedef struct {
|
|
uint32_t signature;
|
|
uint16_t length;
|
|
uint8_t revision;
|
|
uint8_t checksum;
|
|
uint8_t oem_id[8];
|
|
uint8_t product_id[12];
|
|
uint32_t oem_table;
|
|
uint16_t oem_table_size;
|
|
uint16_t entry_count;
|
|
uint32_t lapic;
|
|
uint16_t extended_table_length;
|
|
uint8_t extended_table_checksum;
|
|
} __attribute__ ((packed)) apic_config_table_t;
|
|
|
|
/* APIC Processor Entry */
|
|
typedef struct {
|
|
uint8_t type;
|
|
uint8_t id;
|
|
uint8_t version;
|
|
uint8_t cpu;
|
|
uint32_t cpu_signature;
|
|
uint32_t cpu_feature;
|
|
} __attribute__ ((packed)) apic_processor_entry_t;
|
|
|
|
/* IO APIC Entry */
|
|
typedef struct {
|
|
uint8_t type;
|
|
uint8_t id;
|
|
uint8_t version;
|
|
uint8_t enabled;
|
|
uint32_t addr;
|
|
} __attribute__ ((packed)) apic_io_entry_t;
|
|
|
|
int apic_init(void);
|
|
void apic_eoi(void);
|
|
int apic_calibration(void);
|
|
int has_apic(void);
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
|
|
#endif
|