time.c (498495dba268b20e8eadd7fe93c140c68b6cc9d2) time.c (82c849eb36fe6dcfa955b25c7aad71b5c1b4403c)
1// SPDX-License-Identifier: GPL-2.0
2/*
3 * linux/arch/alpha/kernel/time.c
4 *
5 * Copyright (C) 1991, 1992, 1995, 1999, 2000 Linus Torvalds
6 *
7 * This file contains the clocksource time handling.
8 * 1997-09-10 Updated NTP code according to technical memorandum Jan '96

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237 outb(0x36, 0x43); /* pit counter 0: system timer */
238 outb(0x00, 0x40);
239 outb(0x00, 0x40);
240
241 outb(0xb6, 0x43); /* pit counter 2: speaker */
242 outb(0x31, 0x42);
243 outb(0x13, 0x42);
244
1// SPDX-License-Identifier: GPL-2.0
2/*
3 * linux/arch/alpha/kernel/time.c
4 *
5 * Copyright (C) 1991, 1992, 1995, 1999, 2000 Linus Torvalds
6 *
7 * This file contains the clocksource time handling.
8 * 1997-09-10 Updated NTP code according to technical memorandum Jan '96

--- 228 unchanged lines hidden (view full) ---

237 outb(0x36, 0x43); /* pit counter 0: system timer */
238 outb(0x00, 0x40);
239 outb(0x00, 0x40);
240
241 outb(0xb6, 0x43); /* pit counter 2: speaker */
242 outb(0x31, 0x42);
243 outb(0x13, 0x42);
244
245 init_rtc_irq();
245 init_rtc_irq(NULL);
246}
247
248
249#ifndef CONFIG_ALPHA_WTINT
250/*
251 * The RPCC as a clocksource primitive.
252 *
253 * While we have free-running timecounters running on all CPUs, and we make

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391{
392 unsigned int cc1, cc2;
393 unsigned long cycle_freq, tolerance;
394 long diff;
395
396 if (alpha_using_qemu) {
397 clocksource_register_hz(&qemu_cs, NSEC_PER_SEC);
398 init_qemu_clockevent();
246}
247
248
249#ifndef CONFIG_ALPHA_WTINT
250/*
251 * The RPCC as a clocksource primitive.
252 *
253 * While we have free-running timecounters running on all CPUs, and we make

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391{
392 unsigned int cc1, cc2;
393 unsigned long cycle_freq, tolerance;
394 long diff;
395
396 if (alpha_using_qemu) {
397 clocksource_register_hz(&qemu_cs, NSEC_PER_SEC);
398 init_qemu_clockevent();
399
400 timer_irqaction.handler = qemu_timer_interrupt;
401 init_rtc_irq();
399 init_rtc_irq(qemu_timer_interrupt);
402 return;
403 }
404
405 /* Calibrate CPU clock -- attempt #1. */
406 if (!est_cycle_freq)
407 est_cycle_freq = validate_cc_value(calibrate_cc_with_pit());
408
409 cc1 = rpcc();

--- 51 unchanged lines hidden --- 		400 return;
401 }
402
403 /* Calibrate CPU clock -- attempt #1. */
404 if (!est_cycle_freq)
405 est_cycle_freq = validate_cc_value(calibrate_cc_with_pit());
406
407 cc1 = rpcc();

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