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/*
* Done by Dietmar Hahn <dietmar.hahn@fujitsu-siemens.com>
* Mostly taken from FreeBSD.
*
****************************************************************************
*
* 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.
*
*/
#include <mini-os/os.h>
#include <mini-os/lib.h>
#include <mini-os/console.h>
#include <mini-os/page.h>
static struct ia64_fdesc sal_fdesc;
uint64_t ia64_pal_entry; /* PAL_PROC entrypoint */
struct ia64_sal_result
ia64_sal_call(uint64_t a1, uint64_t a2, uint64_t a3, uint64_t a4,
uint64_t a5, uint64_t a6, uint64_t a7, uint64_t a8)
{
return ia64_sal_entry(a1, a2, a3, a4, a5, a6, a7, a8);
}
static struct ia64_sal_result
fake_sal(uint64_t a1, uint64_t a2, uint64_t a3, uint64_t a4,
uint64_t a5, uint64_t a6, uint64_t a7, uint64_t a8)
{
struct ia64_sal_result res;
res.sal_status = -3;
res.sal_result[0] = 0;
res.sal_result[1] = 0;
res.sal_result[2] = 0;
return res;
}
/*
* Currently only the SAL_DESC_ENTRYPOINT is checked to get
* the entry points the pal and sal functions.
*/
void
ia64_sal_init(struct sal_system_table *saltab)
{
static int sizes[6] = { 48, 32, 16, 32, 16, 16 };
uint8_t *p;
int i;
PRINT_BV("Reading SALtable:\n");
ia64_sal_entry = fake_sal;
if (memcmp((void*)(uint64_t)(saltab->sal_signature), SAL_SIGNATURE, 4))
{
printk("Bad signature for SAL System Table\n");
return;
}
p = (uint8_t *) (saltab + 1);
for (i = 0; i < saltab->sal_entry_count; i++) {
switch (*p) {
case SAL_DESC_ENTRYPOINT: // 0
{
struct sal_entrypoint_descriptor *dp;
dp = (struct sal_entrypoint_descriptor*)p;
ia64_pal_entry =
IA64_PHYS_TO_RR7(dp->sale_pal_proc);
PRINT_BV(" PAL Proc at 0x%lx\n", ia64_pal_entry);
sal_fdesc.func =
IA64_PHYS_TO_RR7(dp->sale_sal_proc);
sal_fdesc.gp = IA64_PHYS_TO_RR7(dp->sale_sal_gp);
PRINT_BV(" SAL Proc at 0x%lx, GP at 0x%lx\n",
sal_fdesc.func, sal_fdesc.gp);
ia64_sal_entry = (sal_entry_t *) &sal_fdesc;
break;
}
default:
break;
}
p += sizes[*p];
}
}
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