[parisc-linux] mem_pdc_call: how using it exactly.

[Bruno Vidal <bruno_vidal@hpfrcu03.france.hp.com>]

[-- Attachment #1: Type: text/plain, Size: 1067 bytes --]

	Hi
I'm fighting with pdc calls since two weeks now. And I think I've nearly succeded to understand how it works. But now I have a problem. I've retrieve the modules hpa, so before using it, I need to
retrieve the spa and io_entry code in order to use it. For doing it I've wrote this, it is nearly the same thing than the function pdc_iodc_read():


static unsigned long pdc_result[32] __attribute__ ((aligned (8)));
static unsigned long pdc_result2[32] __attribute__ ((aligned (8)));

/* Get spa for this module */
hpa=dump_parms->hpa;
index=0;
iodc_data_size=32;

ret = mem_pdc_call(PDC_IODC, PDC_IODC_READ, __pa(pdc_result), hpa, index, __pa(pdc_result2), iodc_data_size);
convert_to_wide(pdc_result);
bytecnt = pdc_result[0];
memcpy(dump_iodc_data, pdc_result2, iodc_data_size);

The result is always "ret = -3" -> cannot complete call without error.
Do I forget anything (probably). Do I have to prevent interruption ? Do I have to modify PSW ?

	thanks.
 
-- 
	Vidal Bruno, (770-4271)
        SSD-HA Team, HP-UX & LINUX Support
	bruno_vidal@admin.france.hp.com

[-- Attachment #2: Card for Bruno Vidal --]
[-- Type: text/x-vcard, Size: 386 bytes --]

begin:vcard 
n:Bruno;VIDAL
tel;fax:01-69-82-60-14
tel;work:01-69-29-42-71
x-mozilla-html:TRUE
url:www.france.hp.com
org:Solution Center
version:2.1
email;internet:bruno_vidal@hp.com
title:Expert Logiciel Environnement Haute Disponibilité
adr;quoted-printable:;;HP France=0D=0A;Z.A de Courtaboeuf;1 Av. du Canada;91947 Les Ulis cedex;France
x-mozilla-cpt:;26208
fn:VIDAL Bruno
end:vcard