cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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i8253.h (809B)

      1/*
      2 * This file is subject to the terms and conditions of the GNU General Public
      3 * License.  See the file "COPYING" in the main directory of this archive
      4 * for more details.
      5 *
      6 *  Machine specific IO port address definition for generic.
      7 *  Written by Osamu Tomita <tomita@cinet.co.jp>
      8 */
      9#ifndef __LINUX_I8253_H
     10#define __LINUX_I8253_H
     11
     12#include <linux/param.h>
     13#include <linux/spinlock.h>
     14#include <linux/timex.h>
     15
     16/* i8253A PIT registers */
     17#define PIT_MODE	0x43
     18#define PIT_CH0		0x40
     19#define PIT_CH2		0x42
     20
     21#define PIT_LATCH	((PIT_TICK_RATE + HZ/2) / HZ)
     22
     23extern raw_spinlock_t i8253_lock;
     24extern bool i8253_clear_counter_on_shutdown;
     25extern struct clock_event_device i8253_clockevent;
     26extern void clockevent_i8253_init(bool oneshot);
     27
     28extern void setup_pit_timer(void);
     29
     30#endif /* __LINUX_I8253_H */