/* $NetBSD: tsp_bus_mem.c,v 1.15 2023/12/04 00:32:10 thorpej Exp $ */

/* $NetBSD: tsp_bus_mem.c,v 1.15 2023/12/04 00:32:10 thorpej Exp $ */

/*-
* Copyright (c) 1999 by Ross Harvey. 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.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by Ross Harvey.
* 4. The name of Ross Harvey may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY ROSS HARVEY ``AS IS'' AND ANY EXPRESS
* OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURP0SE
* ARE DISCLAIMED. IN NO EVENT SHALL ROSS HARVEY 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 <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: tsp_bus_mem.c,v 1.15 2023/12/04 00:32:10 thorpej Exp $");

#include <sys/param.h>
#include <sys/systm.h>
#include <sys/syslog.h>
#include <sys/device.h>

#include <sys/bus.h>
#include <machine/autoconf.h>
#include <machine/rpb.h>

#include <alpha/pci/tsreg.h>
#include <alpha/pci/tsvar.h>

#define tsp_bus_mem() { Generate ctags(1) key. }

#define CHIP tsp

#define CHIP_MEM_ARENA(v) \
(((struct tsp_config *)(v))->pc_mem_arena)
#define CHIP_MEM_ARENA_STORE(v) \
(&(((struct tsp_config *)(v))->pc_mem_arena_store))
#define CHIP_MEM_BTAG_STORE(v) \
(((struct tsp_config *)(v))->pc_mem_btag_store)
#define CHIP_MEM_BTAG_COUNT(v) TSP_NBTS

#define CHIP_MEM_SYS_START(v) \
(((struct tsp_config *)(v))->pc_iobase | P_PCI_MEM)

/*
* Tsunami core logic appears on EV6. We require at least EV56
* support for the assembler to emit BWX opcodes.
*/
__asm(".arch ev6");

#include <alpha/pci/pci_bwx_bus_mem_chipdep.c>

void
tsp_bus_mem_init2(bus_space_tag_t t, void *v)
{
struct tsp_config *pcp = v;
struct ts_pchip *pccsr = pcp->pc_csr;
int i, error;

/*
* Allocate the DMA windows out of the extent map.
*/
for (i = 0; i < 4; i++) {
alpha_mb();
if ((pccsr->tsp_wsba[i].tsg_r & WSBA_ENA) == 0) {
/* Window not in use. */
continue;
}

error = vmem_xalloc_addr(CHIP_MEM_ARENA(v),
WSBA_ADDR(pccsr->tsp_wsba[i].tsg_r),
WSM_LEN(pccsr->tsp_wsm[i].tsg_r),
VM_NOSLEEP);
if (error) {
printf("WARNING: unable to reserve DMA window "
"0x%lx - 0x%lx\n",
WSBA_ADDR(pccsr->tsp_wsba[i].tsg_r),
WSBA_ADDR(pccsr->tsp_wsba[i].tsg_r) +
(WSM_LEN(pccsr->tsp_wsm[i].tsg_r) - 1));
}
}
}