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/*-
* Copyright (c) 2001 Doug Rabson
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. 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.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``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 OR CONTRIBUTORS 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.
*
* $FreeBSD$
*/
/*
* Fake out bits of EFI and SAL when running under SKI.
*/
#include <sys/param.h>
#include <sys/systm.h>
#include <machine/efi.h>
#include <machine/sal.h>
#include <machine/md_var.h>
struct ssc_time {
int year;
int month;
int day;
int hour;
int minute;
int second;
int msec;
int wday;
};
#define SSC_GET_RTC 65
static u_int64_t
ssc(u_int64_t in0, u_int64_t in1, u_int64_t in2, u_int64_t in3, int which)
{
register u_int64_t ret0 __asm("r8");
__asm __volatile("mov r15=%1\n\t"
"break 0x80001"
: "=r"(ret0)
: "r"(which), "r"(in0), "r"(in1), "r"(in2), "r"(in3));
/*
* Ugh... Work around a bug in the Linux version of ski for
* SSC_GET_RTC. The PSR.dt register is not preserved properly
* and causes further memory references to be done without
* translation. All we need to do is set PSR.dt again. Note
* that dependency violations do not exist in ski, so we
* don't have to serialize.
*/
__asm __volatile("ssm psr.dt");
return ret0;
}
extern u_int64_t ski_fake_pal[]; /* *not* a function decl */
extern void ia64_ski_init(void);
extern u_int64_t ia64_pal_entry;
static EFI_STATUS ski_fake_efi_proc(void);
static EFI_STATUS ski_fake_efi_get_time(EFI_TIME *time,
EFI_TIME_CAPABILITIES *caps);
static EFI_RUNTIME_SERVICES ski_fake_efi = {
{ EFI_RUNTIME_SERVICES_SIGNATURE,
EFI_RUNTIME_SERVICES_REVISION,
0, 0, 0 },
(EFI_GET_TIME) ski_fake_efi_get_time,
(EFI_SET_TIME) ski_fake_efi_proc,
(EFI_GET_WAKEUP_TIME) ski_fake_efi_proc,
(EFI_SET_WAKEUP_TIME) ski_fake_efi_proc,
(EFI_SET_VIRTUAL_ADDRESS_MAP) ski_fake_efi_proc,
(EFI_CONVERT_POINTER) ski_fake_efi_proc,
(EFI_GET_VARIABLE) ski_fake_efi_proc,
(EFI_GET_NEXT_VARIABLE_NAME) ski_fake_efi_proc,
(EFI_SET_VARIABLE) ski_fake_efi_proc,
(EFI_GET_NEXT_HIGH_MONO_COUNT) ski_fake_efi_proc,
(EFI_RESET_SYSTEM) ski_fake_efi_proc
};
static EFI_STATUS
ski_fake_efi_get_time(EFI_TIME *time, EFI_TIME_CAPABILITIES *caps)
{
struct ssc_time ssctime;
ssc(ia64_tpa((vm_offset_t) &ssctime), 0, 0, 0, SSC_GET_RTC);
time->Second = ssctime.second;
time->Minute = ssctime.minute;
time->Hour = ssctime.hour;
time->Day = ssctime.day;
time->Month = ssctime.month + 1;
time->Year = ssctime.year + 1900;
return EFI_SUCCESS;
}
static EFI_STATUS
ski_fake_efi_proc(void)
{
return EFI_UNSUPPORTED;
}
static struct ia64_sal_result
ski_fake_sal(u_int64_t a1, u_int64_t a2, u_int64_t a3, u_int64_t a4,
u_int64_t a5, u_int64_t a6, u_int64_t a7, u_int64_t a8)
{
struct ia64_sal_result res;
if (a1 == SAL_FREQ_BASE) {
/*
* Fake the values from my SDV.
*/
res.sal_status = 0;
res.sal_result[0] = 133347096;
res.sal_result[1] = 0;
res.sal_result[2] = 0;
return res;
}
/*
* Return an error for anything we don't care about.
*/
res.sal_status = -3;
res.sal_result[0] = 0;
res.sal_result[1] = 0;
res.sal_result[2] = 0;
return res;
}
void
ia64_ski_init(void)
{
if (!ia64_running_in_simulator())
return;
ia64_efi_runtime = &ski_fake_efi;
ia64_pal_entry = (u_int64_t) ski_fake_pal;
ia64_sal_entry = ski_fake_sal;
}
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