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target/s390x: Split out s390-tod.h 

We will need these from CONFIG_USER_ONLY as well,
which cannot access include/hw/.

Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20190212053044.29015-2-richard.henderson@linaro.org>
Signed-off-by: Cornelia Huck <cohuck@redhat.com>
This commit is contained in:
Richard Henderson 2019-02-11 21:30:43 -08:00 committed by Cornelia Huck
parent 09ced81aac
commit 4037c39ba5
2 changed files with 30 additions and 15 deletions
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16
include/hw/s390x/tod.h
View File

@ -12,6 +12,7 @@
#define HW_S390_TOD_H #define HW_S390_TOD_H
#include "hw/qdev.h" #include "hw/qdev.h"
#include "s390-tod.h"
typedef struct S390TOD { typedef struct S390TOD {
uint8_t high; uint8_t high;
@ -50,21 +51,6 @@ typedef struct S390TODClass {
void (*set)(S390TODState *td, const S390TOD *tod, Error **errp); void (*set)(S390TODState *td, const S390TOD *tod, Error **errp);
} S390TODClass; } S390TODClass;
/* The value of the TOD clock for 1.1.1970. */
#define TOD_UNIX_EPOCH 0x7d91048bca000000ULL
/* Converts ns to s390's clock format */
static inline uint64_t time2tod(uint64_t ns)
{
return (ns << 9) / 125 + (((ns & 0xff80000000000000ull) / 125) << 9);
}
/* Converts s390's clock format to ns */
static inline uint64_t tod2time(uint64_t t)
{
return ((t >> 9) * 125) + (((t & 0x1ff) * 125) >> 9);
}
void s390_init_tod(void); void s390_init_tod(void);
S390TODState *s390_get_todstate(void); S390TODState *s390_get_todstate(void);

29
target/s390x/s390-tod.h Normal file
View File

@ -0,0 +1,29 @@
/*
* TOD (Time Of Day) clock
*
* Copyright 2018 Red Hat, Inc.
* Author(s): David Hildenbrand <david@redhat.com>
*
* This work is licensed under the terms of the GNU GPL, version 2 or later.
* See the COPYING file in the top-level directory.
*/
#ifndef TARGET_S390_TOD_H
#define TARGET_S390_TOD_H
/* The value of the TOD clock for 1.1.1970. */
#define TOD_UNIX_EPOCH 0x7d91048bca000000ULL
/* Converts ns to s390's clock format */
static inline uint64_t time2tod(uint64_t ns)
{
return (ns << 9) / 125 + (((ns & 0xff80000000000000ull) / 125) << 9);
}
/* Converts s390's clock format to ns */
static inline uint64_t tod2time(uint64_t t)
{
return ((t >> 9) * 125) + (((t & 0x1ff) * 125) >> 9);
}
#endif