* Copyright (c) 2002 Jason L. Wright (jason@thought.net)

/* $NetBSD: schizo.c,v 1.47 2022/01/21 19:14:14 thorpej Exp $ */
/* $OpenBSD: schizo.c,v 1.55 2008/08/18 20:29:37 brad Exp $ */

/*
* Copyright (c) 2002 Jason L. Wright ([email protected])
* Copyright (c) 2003 Henric Jungheim
* Copyright (c) 2008, 2009, 2010, 2012 Matthew R. Green
* 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 ``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 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: schizo.c,v 1.47 2022/01/21 19:14:14 thorpej Exp $");

#include <sys/param.h>
#include <sys/device.h>
#include <sys/errno.h>
#include <sys/extent.h>
#include <sys/kmem.h>
#include <sys/malloc.h>
#include <sys/systm.h>
#include <sys/time.h>
#include <sys/reboot.h>

#define _SPARC_BUS_DMA_PRIVATE
#include <sys/bus.h>
#include <machine/autoconf.h>
#include <machine/psl.h>

#include <dev/pci/pcivar.h>
#include <dev/pci/pcireg.h>

#include <sparc64/dev/iommureg.h>
#include <sparc64/dev/iommuvar.h>
#include <sparc64/dev/schizoreg.h>
#include <sparc64/dev/schizovar.h>
#include <sparc64/sparc64/cache.h>

#ifdef DEBUG
#define SDB_PROM 0x01
#define SDB_BUSMAP 0x02
#define SDB_INTR 0x04
#define SDB_INTMAP 0x08
#define SDB_CONF 0x10
int schizo_debug = 0x0;
#define DPRINTF(l, s) do { if (schizo_debug & l) printf s; } while (0)
#else
#define DPRINTF(l, s)
#endif

extern struct sparc_pci_chipset _sparc_pci_chipset;

static int schizo_match(device_t, cfdata_t, void *);
static void schizo_attach(device_t, device_t, void *);
static int schizo_print(void *aux, const char *p);

#ifdef DEBUG
void schizo_print_regs(int unit, int what);
#endif

CFATTACH_DECL_NEW(schizo, sizeof(struct schizo_softc),
schizo_match, schizo_attach, NULL, NULL);

void schizo_init_iommu(struct schizo_softc *, struct schizo_pbm *);

void schizo_set_intr(struct schizo_softc *, struct schizo_pbm *, int,
int (*handler)(void *), void *, int, const char *);
int schizo_ue(void *);
int schizo_ce(void *);
int schizo_safari_error(void *);
int schizo_pci_error(void *);

pci_chipset_tag_t schizo_alloc_chipset(struct schizo_pbm *, int,
pci_chipset_tag_t);
bus_space_tag_t schizo_alloc_mem_tag(struct schizo_pbm *);
bus_space_tag_t schizo_alloc_io_tag(struct schizo_pbm *);
bus_space_tag_t schizo_alloc_config_tag(struct schizo_pbm *);
bus_space_tag_t schizo_alloc_bus_tag(struct schizo_pbm *, const char *,
int);
bus_dma_tag_t schizo_alloc_dma_tag(struct schizo_pbm *);

pcireg_t schizo_conf_read(pci_chipset_tag_t, pcitag_t, int);
void schizo_conf_write(pci_chipset_tag_t, pcitag_t, int, pcireg_t);

int schizo_bus_map(bus_space_tag_t t, bus_addr_t offset, bus_size_t size,
int flags, vaddr_t unused, bus_space_handle_t *hp);
static paddr_t schizo_bus_mmap(bus_space_tag_t t, bus_addr_t paddr,
off_t off, int prot, int flags);
static void *schizo_intr_establish(bus_space_tag_t, int, int, int (*)(void *),
void *, void(*)(void));
static int schizo_pci_intr_map(const struct pci_attach_args *,
pci_intr_handle_t *);
static void *schizo_pci_intr_establish(pci_chipset_tag_t, pci_intr_handle_t,
int, int (*)(void *), void *);
static int schizo_dmamap_create(bus_dma_tag_t, bus_size_t, int, bus_size_t,
bus_size_t, int, bus_dmamap_t *);

int
schizo_match(device_t parent, cfdata_t match, void *aux)
{
struct mainbus_attach_args *ma = aux;
char *str;

if (strcmp(ma->ma_name, "pci") != 0)
return (0);

str = prom_getpropstring(ma->ma_node, "model");
if (strcmp(str, "schizo") == 0)
return (1);

str = prom_getpropstring(ma->ma_node, "compatible");
if (strcmp(str, "pci108e,8001") == 0)
return (1);
if (strcmp(str, "pci108e,8002") == 0) /* XMITS */
return (1);
if (strcmp(str, "pci108e,a801") == 0) /* Tomatillo */
return (1);

return (0);
}

void
schizo_attach(device_t parent, device_t self, void *aux)
{
struct schizo_softc *sc = device_private(self);
struct mainbus_attach_args *ma = aux;
struct schizo_pbm *pbm;
struct iommu_state *is;
struct pcibus_attach_args pba;
uint64_t reg, eccctrl, ino_bitmap;
int *busranges = NULL, nranges, *ino_bitmaps = NULL, nbitmaps;
char *str;
bool no_sc;

aprint_normal(": addr %" PRIx64, ma->ma_reg[0].ur_paddr);
str = prom_getpropstring(ma->ma_node, "compatible");
if (strcmp(str, "pci108e,a801") == 0)
sc->sc_tomatillo = 1;

sc->sc_dev = self;
sc->sc_node = ma->ma_node;
sc->sc_dmat = ma->ma_dmatag;
sc->sc_bustag = ma->ma_bustag;

sc->sc_ver = prom_getpropint(sc->sc_node, "version#", 0);

if (bus_space_map(sc->sc_bustag, ma->ma_reg[1].ur_paddr - 0x10000UL,
sizeof(struct schizo_regs), 0,
&sc->sc_ctrlh)) {
aprint_error(": failed to map registers\n");
return;
}

sc->sc_ign = INTIGN(ma->ma_upaid << INTMAP_IGN_SHIFT);

/* enable schizo ecc error interrupts */
eccctrl = schizo_read(sc, SCZ_ECCCTRL);
eccctrl |= SCZ_ECCCTRL_EE_INTEN |
SCZ_ECCCTRL_UE_INTEN |
SCZ_ECCCTRL_CE_INTEN;
schizo_write(sc, SCZ_ECCCTRL, eccctrl);

pbm = kmem_zalloc(sizeof(*pbm), KM_SLEEP);
#ifdef DEBUG
sc->sc_pbm = pbm;
#endif
pbm->sp_sc = sc;
pbm->sp_regt = sc->sc_bustag;

if ((ma->ma_reg[0].ur_paddr & 0x00700000) == 0x00600000)
pbm->sp_bus_a = 1;
else
pbm->sp_bus_a = 0;

/*
* Map interrupt registers
*/
if (bus_space_map(sc->sc_bustag, ma->ma_reg[0].ur_paddr,
ma->ma_reg[0].ur_len,
BUS_SPACE_MAP_LINEAR, &pbm->sp_intrh)) {
aprint_error(": failed to map interrupt registers\n");
kmem_free(pbm, sizeof(*pbm));
return;
}

#ifdef DEBUG
/*
* Map ichip registers
*/
if (sc->sc_tomatillo)
if (bus_space_map(sc->sc_bustag, ma->ma_reg[3].ur_paddr,
ma->ma_reg[3].ur_len,
BUS_SPACE_MAP_LINEAR, &pbm->sp_ichiph)) {
aprint_error(": failed to map ichip registers\n");
kmem_free(pbm, sizeof(*pbm));
return;
}
#endif

if (prom_getprop(sc->sc_node, "ranges", sizeof(struct schizo_range),
&pbm->sp_nrange, (void **)&pbm->sp_range))
panic("schizo: can't get ranges");

if (prom_getprop(sc->sc_node, "bus-range", sizeof(int), &nranges,
(void **)&busranges))
panic("schizo: can't get bus-range");

aprint_normal(": %s, version %d, ign %x, bus %c %d to %d\n",
sc->sc_tomatillo ? "Tomatillo" : "Schizo", sc->sc_ver,
sc->sc_ign, pbm->sp_bus_a ? 'A' : 'B', busranges[0], busranges[1]);
aprint_naive("\n");

if (bus_space_subregion(pbm->sp_regt, sc->sc_ctrlh,
pbm->sp_bus_a ? offsetof(struct schizo_regs, pbm_a) :
offsetof(struct schizo_regs, pbm_b),
sizeof(struct schizo_pbm_regs),
&pbm->sp_regh)) {
panic("schizo: unable to create PBM handle");
}

is = &pbm->sp_is;
pbm->sp_sb.sb_is = is;
no_sc = prom_getproplen(sc->sc_node, "no-streaming-cache") >= 0;
if (no_sc)
aprint_debug_dev(sc->sc_dev, "no streaming buffers\n");
else {
vaddr_t va = (vaddr_t)&pbm->sp_flush[0x40];

/*
* Initialize the strbuf_ctl.
*
* The flush sync buffer must be 64-byte aligned.
*/
is->is_sb[0] = &pbm->sp_sb;
is->is_sb[0]->sb_flush = (void *)(va & ~0x3f);

bus_space_subregion(pbm->sp_regt, pbm->sp_regh,
offsetof(struct schizo_pbm_regs, strbuf),
sizeof(struct iommu_strbuf), &is->is_sb[0]->sb_sb);
}

aprint_normal_dev(sc->sc_dev, " ");
if (sc->sc_tomatillo)
is->is_flags |= IOMMU_SYNC_BEFORE_UNMAP;
schizo_init_iommu(sc, pbm);

pbm->sp_memt = schizo_alloc_mem_tag(pbm);
pbm->sp_iot = schizo_alloc_io_tag(pbm);
pbm->sp_cfgt = schizo_alloc_config_tag(pbm);
pbm->sp_dmat = schizo_alloc_dma_tag(pbm);
pbm->sp_flags = (pbm->sp_memt ? PCI_FLAGS_MEM_OKAY : 0) |
(pbm->sp_iot ? PCI_FLAGS_IO_OKAY : 0);

if (bus_space_map(pbm->sp_cfgt, 0, 0x1000000, 0, &pbm->sp_cfgh))
panic("schizo: could not map config space");

pbm->sp_pc = schizo_alloc_chipset(pbm, sc->sc_node,
&_sparc_pci_chipset);
pbm->sp_pc->spc_busmax = busranges[1];
pbm->sp_pc->spc_busnode = kmem_zalloc(sizeof(*pbm->sp_pc->spc_busnode),
KM_SLEEP);

pba.pba_bus = busranges[0];
pba.pba_bridgetag = NULL;
pba.pba_pc = pbm->sp_pc;
pba.pba_flags = pbm->sp_flags;
pba.pba_dmat = pbm->sp_dmat;
pba.pba_dmat64 = NULL; /* XXX */
pba.pba_memt = pbm->sp_memt;
pba.pba_iot = pbm->sp_iot;

free(busranges, M_DEVBUF);

schizo_pbm_write(pbm, SCZ_PCI_INTR_RETRY, 5);

/* clear out the bus errors */
schizo_pbm_write(pbm, SCZ_PCI_CTRL, schizo_pbm_read(pbm, SCZ_PCI_CTRL));
schizo_pbm_write(pbm, SCZ_PCI_AFSR, schizo_pbm_read(pbm, SCZ_PCI_AFSR));
schizo_cfg_write(pbm, PCI_COMMAND_STATUS_REG,
schizo_cfg_read(pbm, PCI_COMMAND_STATUS_REG));

reg = schizo_pbm_read(pbm, SCZ_PCI_CTRL);
/* enable/disable error interrupts and arbiter */
reg |= SCZ_PCICTRL_EEN | SCZ_PCICTRL_MMU_INT;
if (sc->sc_tomatillo) {
reg &= ~SCZ_PCICTRL_SBH_INT;
reg |= TOM_PCICTRL_ARB;
reg |= TOM_PCICTRL_PRM | TOM_PCICTRL_PRO |
TOM_PCICTRL_PRL;
if (sc->sc_ver <= 1) /* 2.0 */
reg |= TOM_PCICTRL_DTO_INT;
else
reg |= SCZ_PCICTRL_PTO;
} else
reg |= SCZ_PCICTRL_SBH_INT | SCZ_PCICTRL_ARB;
if (OF_getproplen(sc->sc_node, "no-bus-parking") < 0)
reg |= SCZ_PCICTRL_PARK;
schizo_pbm_write(pbm, SCZ_PCI_CTRL, reg);

reg = schizo_pbm_read(pbm, SCZ_PCI_DIAG);
reg &= ~(SCZ_PCIDIAG_D_RTRYARB | SCZ_PCIDIAG_D_RETRY |
SCZ_PCIDIAG_D_INTSYNC);
schizo_pbm_write(pbm, SCZ_PCI_DIAG, reg);

if (prom_getprop(sc->sc_node, "ino-bitmap", sizeof(int), &nbitmaps,
(void **)&ino_bitmaps)) {
/* No property - set defaults (double map UE, CE, SERR). */
if (pbm->sp_bus_a)
ino_bitmap = __BIT(SCZ_PCIERR_A_INO);
else
ino_bitmap = __BIT(SCZ_PCIERR_B_INO);
ino_bitmap |= __BIT(SCZ_UE_INO) | __BIT(SCZ_CE_INO) |
__BIT(SCZ_SERR_INO);
} else
ino_bitmap = (uint64_t) ino_bitmaps[1] << 32 | ino_bitmaps[0];
DPRINTF(SDB_INTR, ("ino_bitmap=0x%016" PRIx64 "\n", ino_bitmap));

if (ino_bitmap & __BIT(SCZ_PCIERR_A_INO))
schizo_set_intr(sc, pbm, PIL_HIGH, schizo_pci_error,
pbm, SCZ_PCIERR_A_INO, "pci_a");
if (ino_bitmap & __BIT(SCZ_PCIERR_B_INO))
schizo_set_intr(sc, pbm, PIL_HIGH, schizo_pci_error,
pbm, SCZ_PCIERR_B_INO, "pci_b");
if (ino_bitmap & __BIT(SCZ_UE_INO))
schizo_set_intr(sc, pbm, PIL_HIGH, schizo_ue, sc, SCZ_UE_INO,
"ue");
if (ino_bitmap & __BIT(SCZ_CE_INO))
schizo_set_intr(sc, pbm, PIL_HIGH, schizo_ce, sc, SCZ_CE_INO,
"ce");
if (ino_bitmap & __BIT(SCZ_SERR_INO))
schizo_set_intr(sc, pbm, PIL_HIGH, schizo_safari_error, sc,
SCZ_SERR_INO, "safari");

if (sc->sc_tomatillo) {
/*
* Enable the IOCACHE.
*/
uint64_t iocache_csr;

iocache_csr = TOM_IOCACHE_CSR_WRT_PEN |
(1 << TOM_IOCACHE_CSR_POFFSET_SHIFT) |
TOM_IOCACHE_CSR_PEN_RDM |
TOM_IOCACHE_CSR_PEN_ONE |
TOM_IOCACHE_CSR_PEN_LINE;
schizo_pbm_write(pbm, SCZ_PCI_IOCACHE_CSR, iocache_csr);
}

config_found(sc->sc_dev, &pba, schizo_print,
CFARGS(.devhandle = device_handle(self)));
}

int
schizo_ue(void *vsc)
{
struct schizo_softc *sc = vsc;

panic("%s: uncorrectable error", device_xname(sc->sc_dev));
return (1);
}

int
schizo_ce(void *vsc)
{
struct schizo_softc *sc = vsc;

panic("%s: correctable error", device_xname(sc->sc_dev));
return (1);
}

int
schizo_pci_error(void *vpbm)
{
struct schizo_pbm *sp = vpbm;
struct schizo_softc *sc = sp->sp_sc;
u_int64_t afsr, afar, ctrl, tfar;
u_int32_t csr;
char bits[128];

afsr = schizo_pbm_read(sp, SCZ_PCI_AFSR);
afar = schizo_pbm_read(sp, SCZ_PCI_AFAR);
ctrl = schizo_pbm_read(sp, SCZ_PCI_CTRL);
csr = schizo_cfg_read(sp, PCI_COMMAND_STATUS_REG);

printf("%s: pci bus %c error\n", device_xname(sc->sc_dev),
sp->sp_bus_a ? 'A' : 'B');

snprintb(bits, sizeof(bits), SCZ_PCIAFSR_BITS, afsr);
printf("PCIAFSR=%s\n", bits);
printf("PCIAFAR=%" PRIx64 "\n", afar);
snprintb(bits, sizeof(bits), SCZ_PCICTRL_BITS, ctrl);
printf("PCICTRL=%s\n", bits);
#ifdef PCI_COMMAND_STATUS_BITS
snprintb(bits, sizeof(bits), PCI_COMMAND_STATUS_BITS, csr);
printf("PCICSR=%s\n", bits);
#endif

if (ctrl & SCZ_PCICTRL_MMU_ERR) {
ctrl = schizo_pbm_read(sp, SCZ_PCI_IOMMU_CTRL);
printf("IOMMUCTRL=%" PRIx64 "\n", ctrl);

if ((ctrl & TOM_IOMMU_ERR) == 0)
goto clear_error;

if (sc->sc_tomatillo) {
tfar = schizo_pbm_read(sp, TOM_PCI_IOMMU_TFAR);
printf("IOMMUTFAR=%" PRIx64 "\n", tfar);
}

/* These are non-fatal if target abort was signalled. */
if ((ctrl & TOM_IOMMU_ERR_MASK) == TOM_IOMMU_INV_ERR ||
ctrl & TOM_IOMMU_ILLTSBTBW_ERR ||
ctrl & TOM_IOMMU_BADVA_ERR) {
if (csr & PCI_STATUS_TARGET_TARGET_ABORT) {
schizo_pbm_write(sp, SCZ_PCI_IOMMU_CTRL, ctrl);
goto clear_error;
}
}
}

panic("%s: %s: fatal", __func__, device_xname(sc->sc_dev));

clear_error:
schizo_cfg_write(sp, PCI_COMMAND_STATUS_REG, csr);
schizo_pbm_write(sp, SCZ_PCI_CTRL, ctrl);
schizo_pbm_write(sp, SCZ_PCI_AFSR, afsr);
return (1);
}

int
schizo_safari_error(void *vsc)
{
struct schizo_softc *sc = vsc;

printf("%s: safari error\n", device_xname(sc->sc_dev));

printf("ERRLOG=%" PRIx64 "\n", schizo_read(sc, SCZ_SAFARI_ERRLOG));
printf("UE_AFSR=%" PRIx64 "\n", schizo_read(sc, SCZ_UE_AFSR));
printf("UE_AFAR=%" PRIx64 "\n", schizo_read(sc, SCZ_UE_AFAR));
printf("CE_AFSR=%" PRIx64 "\n", schizo_read(sc, SCZ_CE_AFSR));
printf("CE_AFAR=%" PRIx64 "\n", schizo_read(sc, SCZ_CE_AFAR));

panic("%s: %s: fatal", __func__, device_xname(sc->sc_dev));
return (1);
}

void
schizo_init_iommu(struct schizo_softc *sc, struct schizo_pbm *pbm)
{
struct iommu_state *is = &pbm->sp_is;
int *vdma = NULL, nitem, tsbsize = 7;
u_int32_t iobase = -1;
char *name;

/* punch in our copies */
is->is_bustag = pbm->sp_regt;
bus_space_subregion(is->is_bustag, pbm->sp_regh,
offsetof(struct schizo_pbm_regs, iommu),
sizeof(struct iommureg2),
&is->is_iommu);

/*
* Separate the men from the boys. If the `virtual-dma'
* property exists, use it.
*/
if (!prom_getprop(sc->sc_node, "virtual-dma", sizeof(vdma), &nitem,
(void **)&vdma)) {
/* Damn. Gotta use these values. */
iobase = vdma[0];
#define TSBCASE(x) case 1 << ((x) + 23): tsbsize = (x); break
switch (vdma[1]) {
TSBCASE(1);
TSBCASE(2);
TSBCASE(3);
TSBCASE(4);
TSBCASE(5);
TSBCASE(6);
TSBCASE(7);
default:
printf("bogus tsb size %x, using 7\n", vdma[1]);
tsbsize = 7;
}
#undef TSBCASE
DPRINTF(SDB_BUSMAP, ("schizo_init_iommu: iobase=0x%x\n", iobase));
free(vdma, M_DEVBUF);
} else {
DPRINTF(SDB_BUSMAP, ("schizo_init_iommu: getprop failed, "
"using iobase=0x%x, tsbsize=%d\n", iobase, tsbsize));
}

/* give us a nice name.. */
name = (char *)kmem_alloc(32, KM_SLEEP);
snprintf(name, 32, "%s dvma", device_xname(sc->sc_dev));

iommu_init(name, is, tsbsize, iobase);
}

int
schizo_print(void *aux, const char *p)
{

if (p == NULL)
return (UNCONF);
return (QUIET);
}

pcireg_t
schizo_conf_read(pci_chipset_tag_t pc, pcitag_t tag, int reg)
{
struct schizo_pbm *sp = pc->cookie;
pcireg_t val = (pcireg_t)~0;
int s;

DPRINTF(SDB_CONF, ("%s: tag %lx reg %x ", __func__, (long)tag, reg));
if (PCITAG_NODE(tag) != -1 && (unsigned int)reg < PCI_CONF_SIZE) {
s = splhigh();
struct cpu_info *ci = curcpu();
ci->ci_pci_probe = true;
membar_Sync();
val = bus_space_read_4(sp->sp_cfgt, sp->sp_cfgh,
PCITAG_OFFSET(tag) + reg);
membar_Sync();
if (ci->ci_pci_fault)
val = (pcireg_t)~0;
ci->ci_pci_probe = ci->ci_pci_fault = false;
splx(s);
}
DPRINTF(SDB_CONF, (" returning %08x\n", (u_int)val));
return (val);
}

void
schizo_conf_write(pci_chipset_tag_t pc, pcitag_t tag, int reg, pcireg_t data)
{
struct schizo_pbm *sp = pc->cookie;

DPRINTF(SDB_CONF, ("%s: tag %lx; reg %x; data %x", __func__,
(long)tag, reg, (int)data));

/* If we don't know it, just punt it. */
if (PCITAG_NODE(tag) == -1) {
DPRINTF(SDB_CONF, (" .. bad addr\n"));
return;
}

if ((unsigned int)reg >= PCI_CONF_SIZE)
return;

bus_space_write_4(sp->sp_cfgt, sp->sp_cfgh,
PCITAG_OFFSET(tag) + reg, data);
DPRINTF(SDB_CONF, (" .. done\n"));
}

void
schizo_set_intr(struct schizo_softc *sc, struct schizo_pbm *pbm, int ipl,
int (*handler)(void *), void *arg, int ino, const char *what)
{
struct intrhand *ih;
u_int64_t mapoff, clroff;
uintptr_t intrregs;

DPRINTF(SDB_INTR, ("%s: ino %x ign %x fn %p arg %p", __func__,
ino, sc->sc_ign, handler, arg));

mapoff = offsetof(struct schizo_pbm_regs, imap[ino]);
clroff = offsetof(struct schizo_pbm_regs, iclr[ino]);
ino |= sc->sc_ign;

DPRINTF(SDB_INTR, (" mapoff %" PRIx64 " clroff %" PRIx64 "\n",
mapoff, clroff));

ih = intrhand_alloc();

ih->ih_arg = arg;
intrregs = (uintptr_t)bus_space_vaddr(pbm->sp_regt, pbm->sp_intrh);
ih->ih_map = (uint64_t *)(uintptr_t)(intrregs + mapoff);
ih->ih_clr = (uint64_t *)(uintptr_t)(intrregs + clroff);
ih->ih_fun = handler;
ih->ih_pil = ipl;
ih->ih_number = INTVEC(schizo_pbm_read(pbm, mapoff));
ih->ih_pending = 0;

intr_establish(ipl, ipl != IPL_VM, ih);

schizo_pbm_write(pbm, mapoff,
ih->ih_number | INTMAP_V | (CPU_UPAID << INTMAP_TID_SHIFT));
schizo_pbm_write(pbm, clroff, 0);
}

bus_space_tag_t
schizo_alloc_mem_tag(struct schizo_pbm *sp)
{
return (schizo_alloc_bus_tag(sp, "mem", PCI_MEMORY_BUS_SPACE));
}

bus_space_tag_t
schizo_alloc_io_tag(struct schizo_pbm *sp)
{
return (schizo_alloc_bus_tag(sp, "io", PCI_IO_BUS_SPACE));
}

bus_space_tag_t
schizo_alloc_config_tag(struct schizo_pbm *sp)
{
return (schizo_alloc_bus_tag(sp, "cfg", PCI_CONFIG_BUS_SPACE));
}

bus_space_tag_t
schizo_alloc_bus_tag(struct schizo_pbm *pbm, const char *name, int type)
{
struct schizo_softc *sc = pbm->sp_sc;
bus_space_tag_t bt;

bt = kmem_zalloc(sizeof(*bt), KM_SLEEP);
bt->cookie = pbm;
bt->parent = sc->sc_bustag;
bt->type = type;
bt->sparc_bus_map = schizo_bus_map;
bt->sparc_bus_mmap = schizo_bus_mmap;
bt->sparc_intr_establish = schizo_intr_establish;
return (bt);
}

bus_dma_tag_t
schizo_alloc_dma_tag(struct schizo_pbm *pbm)
{
struct schizo_softc *sc = pbm->sp_sc;
bus_dma_tag_t dt, pdt = sc->sc_dmat;

dt = kmem_zalloc(sizeof(*dt), KM_SLEEP);
dt->_cookie = pbm;
dt->_parent = pdt;
#define PCOPY(x) dt->x = pdt->x
dt->_dmamap_create = schizo_dmamap_create;
PCOPY(_dmamap_destroy);
dt->_dmamap_load = iommu_dvmamap_load;
PCOPY(_dmamap_load_mbuf);
PCOPY(_dmamap_load_uio);
dt->_dmamap_load_raw = iommu_dvmamap_load_raw;
dt->_dmamap_unload = iommu_dvmamap_unload;
dt->_dmamap_sync = iommu_dvmamap_sync;
dt->_dmamem_alloc = iommu_dvmamem_alloc;
dt->_dmamem_free = iommu_dvmamem_free;
dt->_dmamem_map = iommu_dvmamem_map;
dt->_dmamem_unmap = iommu_dvmamem_unmap;
PCOPY(_dmamem_mmap);
#undef PCOPY
return (dt);
}

pci_chipset_tag_t
schizo_alloc_chipset(struct schizo_pbm *pbm, int node, pci_chipset_tag_t pc)
{
pci_chipset_tag_t npc;

npc = kmem_alloc(sizeof *npc, KM_SLEEP);
memcpy(npc, pc, sizeof *pc);
npc->cookie = pbm;
npc->rootnode = node;
npc->spc_conf_read = schizo_conf_read;
npc->spc_conf_write = schizo_conf_write;
npc->spc_intr_map = schizo_pci_intr_map;
npc->spc_intr_establish = schizo_pci_intr_establish;
npc->spc_find_ino = NULL;
return (npc);
}

int
schizo_dmamap_create(bus_dma_tag_t t, bus_size_t size,
int nsegments, bus_size_t maxsegsz, bus_size_t boundary, int flags,
bus_dmamap_t *dmamp)
{
struct schizo_pbm *pbm = t->_cookie;
int error;

error = bus_dmamap_create(t->_parent, size, nsegments, maxsegsz,
boundary, flags, dmamp);
if (error == 0)
(*dmamp)->_dm_cookie = &pbm->sp_sb;
return error;
}

static struct schizo_range *
get_schizorange(struct schizo_pbm *pbm, int ss)
{
int i;

for (i = 0; i < pbm->sp_nrange; i++) {
if (((pbm->sp_range[i].cspace >> 24) & 0x03) == ss)
return (&pbm->sp_range[i]);
}
/* not found */
return (NULL);
}

int
schizo_bus_map(bus_space_tag_t t, bus_addr_t offset, bus_size_t size,
int flags, vaddr_t unused, bus_space_handle_t *hp)
{
bus_addr_t paddr;
struct schizo_pbm *pbm = t->cookie;
struct schizo_softc *sc = pbm->sp_sc;
struct schizo_range *sr;
int ss;

DPRINTF(SDB_BUSMAP, ("schizo_bus_map: type %d off %qx sz %qx flags %d",
t->type,
(unsigned long long)offset,
(unsigned long long)size,
flags));

/*
* BUS_SPACE_MAP_PREFETCHABLE causes hard hangs on schizo, so weed it
* out for now
*/
flags &= ~BUS_SPACE_MAP_PREFETCHABLE;

ss = sparc_pci_childspace(t->type);
DPRINTF(SDB_BUSMAP, (" cspace %d\n", ss));

sr = get_schizorange(pbm, ss);
if (sr != NULL) {
paddr = BUS_ADDR(sr->phys_hi, sr->phys_lo + offset);
DPRINTF(SDB_BUSMAP, ("%s: mapping paddr "
"space %lx offset %lx paddr %qx\n",
__func__, (long)ss, (long)offset,
(unsigned long long)paddr));
return ((*sc->sc_bustag->sparc_bus_map)(t, paddr, size,
flags, 0, hp));
}
DPRINTF(SDB_BUSMAP, ("%s: FAILED\n", __func__));
return (EINVAL);
}

static paddr_t
schizo_bus_mmap(bus_space_tag_t t, bus_addr_t paddr, off_t off, int prot,
int flags)
{
bus_addr_t offset = paddr;
struct schizo_pbm *pbm = t->cookie;
struct schizo_softc *sc = pbm->sp_sc;
struct schizo_range *sr;
int ss;

/*
* BUS_SPACE_MAP_PREFETCHABLE causes hard hangs on schizo, so weed it
* out for now
*/
flags &= ~BUS_SPACE_MAP_PREFETCHABLE;

ss = sparc_pci_childspace(t->type);

DPRINTF(SDB_BUSMAP, ("schizo_bus_mmap: prot %d flags %d pa %qx\n",
prot, flags, (unsigned long long)paddr));

sr = get_schizorange(pbm, ss);
if (sr != NULL) {
paddr = BUS_ADDR(sr->phys_hi, sr->phys_lo + offset);
DPRINTF(SDB_BUSMAP, ("%s: mapping paddr "
"space %lx offset %lx paddr %qx\n",
__func__, (long)ss, (long)offset,
(unsigned long long)paddr));
return (bus_space_mmap(sc->sc_bustag, paddr, off,
prot, flags));
}
DPRINTF(SDB_BUSMAP, ("%s: FAILED\n", __func__));
return (-1);
}

/*
* Set the IGN for this schizo into the handle.
*/
int
schizo_pci_intr_map(const struct pci_attach_args *pa, pci_intr_handle_t *ihp)
{
struct schizo_pbm *pbm = pa->pa_pc->cookie;
struct schizo_softc *sc = pbm->sp_sc;

DPRINTF(SDB_INTMAP, ("IGN %x", *ihp));
*ihp |= sc->sc_ign;
DPRINTF(SDB_INTMAP, (" adjusted to %x\n", *ihp));
return (0);
}

static void *
schizo_intr_establish(bus_space_tag_t t, int ihandle, int level,
int (*handler)(void *), void *arg, void (*fastvec)(void) /* ignored */)
{
struct schizo_pbm *pbm = t->cookie;
struct intrhand *ih = NULL;
uint64_t mapoff, clroff;
uintptr_t intrregs;
volatile uint64_t *intrmapptr = NULL, *intrclrptr = NULL;
int ino;
long vec;

vec = INTVEC(ihandle);
ino = INTINO(vec);

ih = intrhand_alloc();

DPRINTF(SDB_INTR, ("\n%s: ihandle %x level %d fn %p arg %p\n", __func__,
ihandle, level, handler, arg));

if (level == IPL_NONE)
level = INTLEV(vec);
if (level == IPL_NONE) {
printf(": no IPL, setting IPL 2.\n");
level = 2;
}

mapoff = offsetof(struct schizo_pbm_regs, imap[ino]);
clroff = offsetof(struct schizo_pbm_regs, iclr[ino]);

DPRINTF(SDB_INTR, ("%s: intr %x: %p mapoff %" PRIx64 " clroff %"
PRIx64 "\n", __func__, ino, intrlev[ino], mapoff, clroff));

ih->ih_ivec = ihandle;

intrregs = (uintptr_t)bus_space_vaddr(pbm->sp_regt, pbm->sp_intrh);
intrmapptr = (uint64_t *)(uintptr_t)(intrregs + mapoff);
intrclrptr = (uint64_t *)(uintptr_t)(intrregs + clroff);

if (INTIGN(vec) == 0)
ino |= schizo_pbm_readintr(pbm, mapoff) & INTMAP_IGN;
else
ino |= vec & INTMAP_IGN;

/* Register the map and clear intr registers */
ih->ih_map = intrmapptr;
ih->ih_clr = intrclrptr;

ih->ih_fun = handler;
ih->ih_arg = arg;
ih->ih_pil = level;
ih->ih_number = ino;
ih->ih_pending = 0;

DPRINTF(SDB_INTR, (
"; installing handler %p arg %p with inr %x pil %u\n",
handler, arg, ino, (u_int)ih->ih_pil));

intr_establish(ih->ih_pil, level != IPL_VM, ih);

/*
* Enable the interrupt now we have the handler installed.
* Read the current value as we can't change it besides the
* valid bit so so make sure only this bit is changed.
*/
if (intrmapptr) {
u_int64_t imap;

imap = schizo_pbm_readintr(pbm, mapoff);
DPRINTF(SDB_INTR, ("; read intrmap = %016qx",
(unsigned long long)imap));
imap |= INTMAP_V;
imap |= (CPU_UPAID << INTMAP_TID_SHIFT);
DPRINTF(SDB_INTR, ("; addr of intrmapptr = %p", intrmapptr));
DPRINTF(SDB_INTR, ("; writing intrmap = %016qx\n",
(unsigned long long)imap));
schizo_pbm_writeintr(pbm, mapoff, imap);
imap = schizo_pbm_readintr(pbm, mapoff);
DPRINTF(SDB_INTR, ("; reread intrmap = %016qx",
(unsigned long long)imap));
ih->ih_number |= imap & INTMAP_INR;
}
if (intrclrptr) {
/* set state to IDLE */
schizo_pbm_writeintr(pbm, clroff, 0);
}

return (ih);
}

static void *
schizo_pci_intr_establish(pci_chipset_tag_t pc, pci_intr_handle_t ih, int level,
int (*func)(void *), void *arg)
{
void *cookie;
struct schizo_pbm *pbm = (struct schizo_pbm *)pc->cookie;

DPRINTF(SDB_INTR, ("%s: ih %lx; level %d", __func__, (u_long)ih, level));
cookie = bus_intr_establish(pbm->sp_memt, ih, level, func, arg);

DPRINTF(SDB_INTR, ("; returning handle %p\n", cookie));
return (cookie);
}

#ifdef DEBUG
void
schizo_print_regs(int unit, int what)
{
device_t dev;
struct schizo_softc *sc;
struct schizo_pbm *pbm;
const struct schizo_regname *r;
int i;
u_int64_t reg;

dev = device_find_by_driver_unit("schizo", unit);
if (dev == NULL) {
printf("Can't find device schizo%d\n", unit);
return;
}

if (!what) {
printf("0x01: Safari registers\n");
printf("0x02: PCI registers\n");
printf("0x04: Scratch pad registers (Tomatillo only)\n");
printf("0x08: IOMMU registers\n");
printf("0x10: Streaming cache registers (Schizo only)\n");
printf("0x20: Interrupt registers\n");
printf("0x40: I-chip registers (Tomatillo only)\n");
return;
}
sc = device_private(dev);
pbm = sc->sc_pbm;
printf("%s (leaf %c) registers:\n", device_xname(sc->sc_dev),
pbm->sp_bus_a ? 'A' : 'B');

printf(" Safari registers:\n");
if (what & 0x01) {
for (r = schizo_regnames; r->size != 0; ++r)
for (i = 0; i <= r->n_reg; i += r->size) {
if ((!sc->sc_tomatillo &&
!(r->type & REG_TYPE_SCHIZO)) ||
(sc->sc_tomatillo &&
!(r->type & REG_TYPE_TOMATILLO)))
continue;
switch (r->size) {
case 1:
reg = schizo_read_1(sc, r->offset + i);
break;
case 8:
/* fallthrough */
default:
reg = schizo_read(sc, r->offset + i);
break;
}
printf("0x%06" PRIx64 " = 0x%016" PRIx64 " (%s",
r->offset + i, reg, r->name);
if (r->n_reg)
printf(" %d)\n", i / r->size);
else
printf(")\n");
}
}

if (what & 0x02) {
printf(" PCI registers:\n");
for (r = schizo_pbm_regnames; r->size != 0; ++r)
for (i = 0; i <= r->n_reg; i += r->size) {
if ((!sc->sc_tomatillo &&
!(r->type & REG_TYPE_SCHIZO)) ||
(sc->sc_tomatillo &&
!(r->type & REG_TYPE_TOMATILLO)))
continue;
if ((pbm->sp_bus_a &&
!(r->type & REG_TYPE_LEAF_A)) ||
(!pbm->sp_bus_a &&
!(r->type & REG_TYPE_LEAF_B)))
continue;
reg = schizo_pbm_read(pbm, r->offset + i);
printf("0x%06" PRIx64 " = 0x%016" PRIx64 ""
" (%s", r->offset + i, reg, r->name);
if (r->n_reg)
printf(" %d)\n", i / r->size);
else
printf(")\n");
}
}

if (what & 0x04 && sc->sc_tomatillo) {
printf(" Scratch pad registers:\n");
for (r = tomatillo_scratch_regnames; r->size != 0; ++r)
for (i = 0; i <= r->n_reg; i += r->size) {
reg = schizo_pbm_read(pbm, r->offset + i);
printf("0x%06" PRIx64 " = 0x%016" PRIx64 ""
" (%s", r->offset + i, reg, r->name);
if (r->n_reg)
printf(" %d)\n", i / r->size);
else
printf(")\n");
}
}

if (what & 0x08) {
printf(" IOMMU registers:\n");
for (r = schizo_iommu_regnames; r->size != 0; ++r)
for (i = 0; i <= r->n_reg; i += r->size) {
if ((!sc->sc_tomatillo &&
!(r->type & REG_TYPE_SCHIZO)) ||
(sc->sc_tomatillo &&
!(r->type & REG_TYPE_TOMATILLO)))
continue;
reg = schizo_pbm_read(pbm, r->offset + i);
printf("0x%06" PRIx64 " = 0x%016" PRIx64 ""
" (%s", r->offset + i, reg, r->name);
if (r->n_reg)
printf(" %d)\n", i / r->size);
else
printf(")\n");
}
}

if (what & 0x10 && !sc->sc_tomatillo) {
printf(" Streaming cache registers:\n");
for (r = schizo_stream_regnames; r->size != 0; ++r)
for (i = 0; i <= r->n_reg; i += r->size) {
reg = schizo_pbm_read(pbm, r->offset + i);
printf("0x%06" PRIx64 " = 0x%016" PRIx64 ""
" (%s", r->offset + i, reg, r->name);
if (r->n_reg)
printf(" %d)\n", i / r->size);
else
printf(")\n");
}
}

if (what & 0x20) {
printf(" Interrupt registers:\n");
for (r = schizo_intr_regnames; r->size != 0; ++r)
for (i = 0; i <= r->n_reg; i += r->size) {
if ((!sc->sc_tomatillo &&
!(r->type & REG_TYPE_SCHIZO)) ||
(sc->sc_tomatillo &&
!(r->type & REG_TYPE_TOMATILLO)))
continue;
reg = schizo_pbm_readintr(pbm, r->offset + i);
printf("0x%06" PRIx64 " = 0x%016" PRIx64 ""
" (%s", r->offset + i, reg, r->name);
if (r->n_reg)
printf(" %d)\n", i / r->size);
else
printf(")\n");
}
}

if (what & 0x40 && sc->sc_tomatillo) {
printf(" I-chip registers:\n");
for (r = tomatillo_ichip_regnames; r->size != 0; ++r)
for (i = 0; i <= r->n_reg; i += r->size) {
if ((sc->sc_tomatillo &&
!(r->type & REG_TYPE_TOMATILLO)))
continue;
reg = tomatillo_pbm_readichip(pbm,
r->offset + i);
printf("0x%06" PRIx64 " = 0x%016" PRIx64 ""
" (%s", r->offset + i, reg, r->name);
if (r->n_reg)
printf(" %d)\n", i / r->size);
else
printf(")\n");
}
}
}
#endif