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/*
*
* This file is subject to the terms and conditions of the GNU General Public
* License. See the file "COPYING" in the main directory of this archive
* for more details.
*
* Copyright (C) 2001-2002 Silicon Graphics, Inc. All rights reserved.
*/
#include <linux/types.h>
#include <linux/slab.h>
#include <linux/module.h>
#include <asm/sn/sgi.h>
#include <asm/sn/sn_cpuid.h>
#include <asm/sn/addrs.h>
#include <asm/sn/arch.h>
#include <asm/sn/iograph.h>
#include <asm/sn/invent.h>
#include <asm/sn/hcl.h>
#include <asm/sn/labelcl.h>
#include <asm/sn/xtalk/xwidget.h>
#include <asm/sn/pci/bridge.h>
#include <asm/sn/pci/pciio.h>
#include <asm/sn/pci/pcibr.h>
#include <asm/sn/pci/pcibr_private.h>
#include <asm/sn/pci/pci_defs.h>
#include <asm/sn/prio.h>
#include <asm/sn/xtalk/xbow.h>
#include <asm/sn/ioc3.h>
#include <asm/sn/eeprom.h>
#include <asm/sn/io.h>
#include <asm/sn/sn_private.h>
pcibr_hints_t pcibr_hints_get(devfs_handle_t, int);
void pcibr_hints_fix_rrbs(devfs_handle_t);
void pcibr_hints_dualslot(devfs_handle_t, pciio_slot_t, pciio_slot_t);
void pcibr_hints_intr_bits(devfs_handle_t, pcibr_intr_bits_f *);
void pcibr_set_rrb_callback(devfs_handle_t, rrb_alloc_funct_t);
void pcibr_hints_handsoff(devfs_handle_t);
void pcibr_hints_subdevs(devfs_handle_t, pciio_slot_t, uint64_t);
pcibr_hints_t
pcibr_hints_get(devfs_handle_t xconn_vhdl, int alloc)
{
arbitrary_info_t ainfo = 0;
graph_error_t rv;
pcibr_hints_t hint;
rv = hwgraph_info_get_LBL(xconn_vhdl, INFO_LBL_PCIBR_HINTS, &ainfo);
if (alloc && (rv != GRAPH_SUCCESS)) {
NEW(hint);
hint->rrb_alloc_funct = NULL;
hint->ph_intr_bits = NULL;
rv = hwgraph_info_add_LBL(xconn_vhdl,
INFO_LBL_PCIBR_HINTS,
(arbitrary_info_t) hint);
if (rv != GRAPH_SUCCESS)
goto abnormal_exit;
rv = hwgraph_info_get_LBL(xconn_vhdl, INFO_LBL_PCIBR_HINTS, &ainfo);
if (rv != GRAPH_SUCCESS)
goto abnormal_exit;
if (ainfo != (arbitrary_info_t) hint)
goto abnormal_exit;
}
return (pcibr_hints_t) ainfo;
abnormal_exit:
#ifdef LATER
printf("SHOULD NOT BE HERE\n");
#endif
DEL(hint);
return(NULL);
}
void
pcibr_hints_fix_some_rrbs(devfs_handle_t xconn_vhdl, unsigned mask)
{
pcibr_hints_t hint = pcibr_hints_get(xconn_vhdl, 1);
if (hint)
hint->ph_rrb_fixed = mask;
else
PCIBR_DEBUG_ALWAYS((PCIBR_DEBUG_HINTS, xconn_vhdl,
"pcibr_hints_fix_rrbs: pcibr_hints_get failed\n"));
}
void
pcibr_hints_fix_rrbs(devfs_handle_t xconn_vhdl)
{
pcibr_hints_fix_some_rrbs(xconn_vhdl, 0xFF);
}
void
pcibr_hints_dualslot(devfs_handle_t xconn_vhdl,
pciio_slot_t host,
pciio_slot_t guest)
{
pcibr_hints_t hint = pcibr_hints_get(xconn_vhdl, 1);
if (hint)
hint->ph_host_slot[guest] = host + 1;
else
PCIBR_DEBUG_ALWAYS((PCIBR_DEBUG_HINTS, xconn_vhdl,
"pcibr_hints_dualslot: pcibr_hints_get failed\n"));
}
void
pcibr_hints_intr_bits(devfs_handle_t xconn_vhdl,
pcibr_intr_bits_f *xxx_intr_bits)
{
pcibr_hints_t hint = pcibr_hints_get(xconn_vhdl, 1);
if (hint)
hint->ph_intr_bits = xxx_intr_bits;
else
PCIBR_DEBUG_ALWAYS((PCIBR_DEBUG_HINTS, xconn_vhdl,
"pcibr_hints_intr_bits: pcibr_hints_get failed\n"));
}
void
pcibr_set_rrb_callback(devfs_handle_t xconn_vhdl, rrb_alloc_funct_t rrb_alloc_funct)
{
pcibr_hints_t hint = pcibr_hints_get(xconn_vhdl, 1);
if (hint)
hint->rrb_alloc_funct = rrb_alloc_funct;
}
void
pcibr_hints_handsoff(devfs_handle_t xconn_vhdl)
{
pcibr_hints_t hint = pcibr_hints_get(xconn_vhdl, 1);
if (hint)
hint->ph_hands_off = 1;
else
PCIBR_DEBUG_ALWAYS((PCIBR_DEBUG_HINTS, xconn_vhdl,
"pcibr_hints_handsoff: pcibr_hints_get failed\n"));
}
void
pcibr_hints_subdevs(devfs_handle_t xconn_vhdl,
pciio_slot_t slot,
uint64_t subdevs)
{
arbitrary_info_t ainfo = 0;
char sdname[16];
devfs_handle_t pconn_vhdl = GRAPH_VERTEX_NONE;
sprintf(sdname, "%s/%d", EDGE_LBL_PCI, slot);
(void) hwgraph_path_add(xconn_vhdl, sdname, &pconn_vhdl);
if (pconn_vhdl == GRAPH_VERTEX_NONE) {
PCIBR_DEBUG_ALWAYS((PCIBR_DEBUG_HINTS, xconn_vhdl,
"pcibr_hints_subdevs: hwgraph_path_create failed\n"));
return;
}
hwgraph_info_get_LBL(pconn_vhdl, INFO_LBL_SUBDEVS, &ainfo);
if (ainfo == 0) {
uint64_t *subdevp;
NEW(subdevp);
if (!subdevp) {
PCIBR_DEBUG_ALWAYS((PCIBR_DEBUG_HINTS, xconn_vhdl,
"pcibr_hints_subdevs: subdev ptr alloc failed\n"));
return;
}
*subdevp = subdevs;
hwgraph_info_add_LBL(pconn_vhdl, INFO_LBL_SUBDEVS, (arbitrary_info_t) subdevp);
hwgraph_info_get_LBL(pconn_vhdl, INFO_LBL_SUBDEVS, &ainfo);
if (ainfo == (arbitrary_info_t) subdevp)
return;
DEL(subdevp);
if (ainfo == (arbitrary_info_t) NULL) {
PCIBR_DEBUG_ALWAYS((PCIBR_DEBUG_HINTS, xconn_vhdl,
"pcibr_hints_subdevs: null subdevs ptr\n"));
return;
}
PCIBR_DEBUG_ALWAYS((PCIBR_DEBUG_HINTS, xconn_vhdl,
"pcibr_subdevs_get: dup subdev add_LBL\n"));
}
*(uint64_t *) ainfo = subdevs;
}
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