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freebsd-skq/sys/alpha/tlsb/dwlpx.c

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/*-
* Copyright (c) 1998 Doug Rabson
* 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 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.
*
* $FreeBSD$
*/
/*
* Based very closely on NetBSD version-
*
* Copyright (c) 1997 by Matthew Jacob
* NASA AMES Research Center.
* 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 immediately at the beginning of the file, without modification,
* 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. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* 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 "opt_simos.h"
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/kernel.h>
#include <sys/module.h>
#include <sys/bus.h>
#include <machine/bus.h>
#include <sys/proc.h>
#include <sys/rman.h>
#include <sys/interrupt.h>
#include <machine/swiz.h>
#include <machine/intr.h>
#include <machine/intrcnt.h>
#include <machine/resource.h>
#include <machine/sgmap.h>
#include <vm/vm.h>
#include <vm/vm_page.h>
#include <alpha/tlsb/tlsbreg.h>
#include <alpha/tlsb/tlsbvar.h>
#include <alpha/tlsb/kftxxreg.h>
#include <alpha/tlsb/kftxxvar.h>
#include <alpha/tlsb/dwlpxreg.h>
#include <alpha/tlsb/dwlpxvar.h>
#include <alpha/pci/pcibus.h>
#include <pci/pcivar.h>
#include "alphapci_if.h"
#include "pcib_if.h"
static devclass_t dwlpx_devclass;
static device_t dwlpxs[DWLPX_NIONODE][DWLPX_NHOSE];
#define KV(pa) ((void *)ALPHA_PHYS_TO_K0SEG(pa))
struct dwlpx_softc {
struct dwlpx_softc *next;
device_t dev; /* backpointer */
u_int64_t sysbase; /* shorthand */
vm_offset_t dmem_base; /* dense memory */
vm_offset_t smem_base; /* sparse memory */
vm_offset_t io_base; /* sparse i/o */
struct swiz_space io_space; /* accessor for ports */
struct swiz_space mem_space; /* accessor for memory */
struct rman io_rman; /* resource manager for ports */
struct rman mem_rman; /* resource manager for memory */
int bushose; /* our bus && hose */
u_int : 26,
nhpc : 2, /* how many HPCs */
dwlpb : 1, /* this is a DWLPB */
sgmapsz : 3; /* Scatter Gather map size */
};
static driver_intr_t dwlpx_intr;
static u_int32_t imaskcache[DWLPX_NIONODE][DWLPX_NHOSE][NHPC];
static void dwlpx_eintr(unsigned long);
/*
* Direct-mapped window: 2G at 2G
*/
#define DWLPx_DIRECT_MAPPED_BASE (2UL*1024UL*1024UL*1024UL)
#define DWLPx_DIRECT_MAPPED_SIZE (2UL*1024UL*1024UL*1024UL)
#define DWLPx_DIRECT_MAPPED_WMASK PCIA_WMASK_2G
/*
* SGMAP window A: 256M at 1.75G or 1G at 1G
*/
#define DWLPx_SG_MAPPED_SIZE(x) ((x) * PAGE_SIZE)
static void dwlpx_dma_init(struct dwlpx_softc *);
#define DWLPX_SOFTC(dev) (struct dwlpx_softc *) device_get_softc(dev)
static struct dwlpx_softc *dwlpx_root;
static int
dwlpx_probe(device_t dev)
{
device_t child;
u_int32_t ctl;
struct dwlpx_softc *xc, *sc = DWLPX_SOFTC(dev);
unsigned long ls;
int io, hose;
io = kft_get_node(dev) - 4;
hose = kft_get_hosenum(dev);
sc->bushose = (io << 2) | hose;
if (dwlpxs[io][hose]) {
printf("%s: already attached\n", device_get_nameunit(dev));
return EEXIST;
}
if ((xc = dwlpx_root) == NULL) {
dwlpx_root = sc;
} else {
while (xc->next)
xc = xc->next;
xc->next = sc;
}
sc->dev = dwlpxs[io][hose] = dev;
ls = DWLPX_BASE(io + 4, hose);
for (sc->nhpc = 1; sc->nhpc < NHPC; sc->nhpc++) {
if (badaddr(KV(PCIA_CTL(sc->nhpc) + ls), sizeof (ctl))) {
break;
}
}
if (sc->nhpc != NHPC) {
REGVAL(PCIA_ERR(0) + ls) = PCIA_ERR_ALLERR;
}
ctl = REGVAL(PCIA_PRESENT + ls);
if ((ctl >> PCIA_PRESENT_REVSHIFT) & PCIA_PRESENT_REVMASK) {
sc->dwlpb = 1;
device_set_desc(dev, "DWLPB PCI adapter");
} else {
device_set_desc(dev, "DWLPA PCI adapter");
}
sc->sgmapsz = DWLPX_SG32K;
if (device_get_unit(dev) == 0) {
pci_init_resources();
}
child = device_add_child(dev, "pci", -1);
device_set_ivars(child, &sc->bushose);
return (0);
}
static int
dwlpx_attach(device_t dev)
{
struct dwlpx_softc *sc = DWLPX_SOFTC(dev);
device_t parent = device_get_parent(dev);
vm_offset_t regs;
u_int32_t ctl;
int i, io, hose;
void *intr;
io = kft_get_node(dev) - 4;
hose = kft_get_hosenum(dev);
sc->sysbase = DWLPX_BASE(io + 4, hose);
regs = (vm_offset_t) KV(sc->sysbase);
sc->dmem_base = regs + DWLPX_PCI_DENSE;
sc->smem_base = regs + DWLPX_PCI_SPARSE;
sc->io_base = regs + DWLPX_PCI_IOSPACE;
/*
* Maybe initialise busspace_isa_io and busspace_isa_mem
* here. Does the 8200 actually have any ISA slots?
*/
swiz_init_space(&sc->io_space, sc->io_base);
swiz_init_space(&sc->mem_space, sc->smem_base);
sc->io_rman.rm_start = 0;
sc->io_rman.rm_end = ~0u;
sc->io_rman.rm_type = RMAN_ARRAY;
sc->io_rman.rm_descr = "I/O ports";
if (rman_init(&sc->io_rman)
|| rman_manage_region(&sc->io_rman, 0x0, (1L << 32)))
panic("dwlpx_attach: io_rman");
sc->mem_rman.rm_start = 0;
sc->mem_rman.rm_end = ~0u;
sc->mem_rman.rm_type = RMAN_ARRAY;
sc->mem_rman.rm_descr = "I/O memory";
if (rman_init(&sc->mem_rman)
|| rman_manage_region(&sc->mem_rman, 0x0, (1L << 32)))
panic("dwlpx_attach: mem_rman");
/*
* Set up interrupt stuff for this DWLPX.
*
* Note that all PCI interrupt pins are disabled at this time.
*
* Do this even for all HPCs- even for the
* nonexistent one on hose zero of a KFTIA.
*/
for (i = 0; i < NHPC; i++) {
REGVAL(PCIA_IMASK(i) + sc->sysbase) = DWLPX_IMASK_DFLT;
REGVAL(PCIA_ERRVEC(i) + sc->sysbase) =
DWLPX_ERRVEC(io, hose);
}
for (i = 0; i < DWLPX_MAXDEV; i++) {
u_int16_t vec;
int ss, hpc;
vec = DWLPX_MVEC(io, hose, i);
ss = i;
if (i < 4) {
hpc = 0;
} else if (i < 8) {
ss -= 4;
hpc = 1;
} else {
ss -= 8;
hpc = 2;
}
REGVAL(PCIA_DEVVEC(hpc, ss, 1) + sc->sysbase) = vec;
REGVAL(PCIA_DEVVEC(hpc, ss, 2) + sc->sysbase) = vec;
REGVAL(PCIA_DEVVEC(hpc, ss, 3) + sc->sysbase) = vec;
REGVAL(PCIA_DEVVEC(hpc, ss, 4) + sc->sysbase) = vec;
}
/*
* Establish HAE values, as well as make sure of sanity elsewhere.
*/
for (i = 0; i < sc->nhpc; i++) {
ctl = REGVAL(PCIA_CTL(i) + sc->sysbase);
ctl &= 0x0fffffff;
ctl &= ~(PCIA_CTL_MHAE(0x1f) | PCIA_CTL_IHAE(0x1f));
/*
* I originally also had it or'ing in 3, which makes no sense.
*/
ctl |= PCIA_CTL_RMMENA | PCIA_CTL_RMMARB;
/*
* Only valid if we're attached to a KFTIA or a KTHA.
*/
ctl |= PCIA_CTL_3UP;
ctl |= PCIA_CTL_CUTENA;
/*
* Fit in appropriate S/G Map Ram size.
*/
if (sc->sgmapsz == DWLPX_SG32K)
ctl |= PCIA_CTL_SG32K;
else if (sc->sgmapsz == DWLPX_SG128K)
ctl |= PCIA_CTL_SG128K;
else
ctl |= PCIA_CTL_SG32K;
REGVAL(PCIA_CTL(i) + sc->sysbase) = ctl;
}
/*
* Enable TBIT if required
*/
if (sc->sgmapsz == DWLPX_SG128K)
REGVAL(PCIA_TBIT + sc->sysbase) = 1;
alpha_mb();
for (io = 0; io < DWLPX_NIONODE; io++) {
for (hose = 0; hose < DWLPX_NHOSE; hose++) {
for (i = 0; i < NHPC; i++) {
imaskcache[io][hose][i] = DWLPX_IMASK_DFLT;
}
}
}
/*
* Set up DMA stuff here.
*/
dwlpx_dma_init(sc);
/*
* Register our interrupt service requirements with out parent.
*/
i = BUS_SETUP_INTR(parent, dev, NULL,
INTR_TYPE_MISC, dwlpx_intr, 0, &intr);
if (i == 0) {
bus_generic_attach(dev);
}
return (i);
}
static void dwlpx_enadis_intr(int, int, int);
static void
dwlpx_enadis_intr(int vector, int intpin, int onoff)
{
unsigned long paddr;
u_int32_t val;
int device, ionode, hose, hpc, s;
ionode = DWLPX_MVEC_IONODE(vector);
hose = DWLPX_MVEC_HOSE(vector);
device = DWLPX_MVEC_PCISLOT(vector);
paddr = (1LL << 39);
paddr |= (unsigned long) ionode << 36;
paddr |= (unsigned long) hose << 34;
if (device < 4) {
hpc = 0;
} else if (device < 8) {
hpc = 1;
device -= 4;
} else {
hpc = 2;
device -= 8;
}
intpin <<= (device << 2);
val = imaskcache[ionode][hose][hpc];
if (onoff)
val |= intpin;
else
val &= ~intpin;
imaskcache[ionode][hose][hpc] = val;
s = splhigh();
REGVAL(PCIA_IMASK(hpc) + paddr) = val;
alpha_mb();
splx(s);
}
static int
dwlpx_setup_intr(device_t dev, device_t child, struct resource *irq, int flags,
driver_intr_t *intr, void *arg, void **cookiep)
{
struct dwlpx_softc *sc = DWLPX_SOFTC(dev);
int slot, ionode, hose, error, vector, intpin;
error = rman_activate_resource(irq);
if (error)
return error;
intpin = pci_get_intpin(child);
slot = pci_get_slot(child);
ionode = sc->bushose >> 2;
hose = sc->bushose & 0x3;
vector = DWLPX_MVEC(ionode, hose, slot);
error = alpha_setup_intr(device_get_nameunit(child ? child : dev),
vector, intr, arg, flags, cookiep,
&intrcnt[INTRCNT_KN8AE_IRQ], NULL, NULL);
if (error)
return error;
dwlpx_enadis_intr(vector, intpin, 1);
device_printf(child, "Node %d Hose %d Slot %d interrupting at TLSB "
"vector 0x%x intpin %d\n", ionode+4, hose, slot, vector, intpin);
return (0);
}
static int
dwlpx_teardown_intr(device_t dev, device_t child, struct resource *irq, void *c)
{
struct dwlpx_softc *sc = DWLPX_SOFTC(dev);
int slot, ionode, hose, vector, intpin;
intpin = pci_get_intpin(child);
slot = pci_get_slot(child);
ionode = sc->bushose >> 2;
hose = sc->bushose & 0x3;
vector = DWLPX_MVEC(ionode, hose, slot);
dwlpx_enadis_intr(vector, intpin, 0);
alpha_teardown_intr(c);
return rman_deactivate_resource(irq);
}
static int
dwlpx_read_ivar(device_t dev, device_t child, int which, u_long *result)
{
switch (which) {
case PCIB_IVAR_BUS:
*result = 0;
return 0;
}
return ENOENT;
}
static void *
dwlpx_cvt_dense(device_t dev, vm_offset_t addr)
{
struct dwlpx_softc *sc = DWLPX_SOFTC(dev);
addr &= 0xffffffffUL;
return (void *) KV(addr | sc->dmem_base);
}
static kobj_t
dwlpx_get_bustag(device_t dev, int type)
{
struct dwlpx_softc *sc = DWLPX_SOFTC(dev);
switch (type) {
case SYS_RES_IOPORT:
return (kobj_t) &sc->io_space;
case SYS_RES_MEMORY:
return (kobj_t) &sc->mem_space;
}
return 0;
}
static struct rman *
dwlpx_get_rman(device_t dev, int type)
{
struct dwlpx_softc *sc = DWLPX_SOFTC(dev);
switch (type) {
case SYS_RES_IOPORT:
return &sc->io_rman;
case SYS_RES_MEMORY:
return &sc->mem_rman;
}
return 0;
}
static int
dwlpx_maxslots(device_t dev)
{
return (DWLPX_MAXDEV);
}
static u_int32_t
dwlpx_read_config(device_t dev, int bus, int slot, int func,
int off, int sz)
{
struct dwlpx_softc *sc = DWLPX_SOFTC(dev);
u_int32_t *dp, data, rvp, pci_idsel, hpcdev;
unsigned long paddr;
int hose, ionode;
int secondary = 0, s = 0, i;
rvp = data = ~0;
ionode = ((sc->bushose >> 2) & 0x7);
hose = (sc->bushose & 0x3);
if (sc->nhpc < 1)
return (data);
else if (sc->nhpc < 2 && slot >= 4)
return (data);
else if (sc->nhpc < 3 && slot >= 8)
return (data);
else if (slot >= DWLPX_MAXDEV)
return (data);
hpcdev = slot >> 2;
pci_idsel = (1 << ((slot & 0x3) + 2));
paddr = (hpcdev << 22) | (pci_idsel << 16) | (func << 13);
if (secondary) {
paddr &= 0x1fffff;
paddr |= (secondary << 21);
#if 0
printf("read secondary %d reg %x (paddr %lx)",
secondary, offset, tag);
#endif
alpha_pal_draina();
s = splhigh();
/*
* Set up HPCs for type 1 cycles.
*/
for (i = 0; i < sc->nhpc; i++) {
rvp = REGVAL(PCIA_CTL(i)+sc->sysbase) | PCIA_CTL_T1CYC;
alpha_mb();
REGVAL(PCIA_CTL(i) + sc->sysbase) = rvp;
alpha_mb();
}
}
paddr |= ((unsigned long) ((off >> 2) << 7));
paddr |= ((sz - 1) << 3);
paddr |= DWLPX_PCI_CONF;
paddr |= ((unsigned long) hose) << 34;
paddr |= ((unsigned long) ionode) << 36;
paddr |= 1L << 39;
dp = (u_int32_t *)KV(paddr);
#if 0
printf("CFGREAD %d.%d.%d.%d.%d.%d.%d -> paddr 0x%lx",
ionode+4, hose, bus, slot, func, off, sz, paddr);
#endif
if (badaddr(dp, sizeof (*dp)) == 0) {
data = *dp;
}
if (secondary) {
alpha_pal_draina();
for (i = 0; i < sc->nhpc; i++) {
rvp = REGVAL(PCIA_CTL(i)+sc->sysbase) & ~PCIA_CTL_T1CYC;
alpha_mb();
REGVAL(PCIA_CTL(i) + sc->sysbase) = rvp;
alpha_mb();
}
(void) splx(s);
}
if (data != ~0) {
if (sz == 1) {
rvp = SPARSE_BYTE_EXTRACT(off, data);
} else if (sz == 2) {
rvp = SPARSE_WORD_EXTRACT(off, data);
} else {
rvp = data;
}
} else {
rvp = data;
}
#if 0
printf(" data 0x%x -> 0x%x\n", data, rvp);
#endif
return (rvp);
}
static void
dwlpx_write_config(device_t dev, int bus, int slot, int func,
int off, u_int32_t data, int sz)
{
struct dwlpx_softc *sc = DWLPX_SOFTC(dev);
int hose, ionode;
int secondary = 0, s = 0, i;
u_int32_t *dp, rvp, pci_idsel, hpcdev;
unsigned long paddr;
ionode = ((sc->bushose >> 2) & 0x7);
hose = (sc->bushose & 0x3);
if (sc->nhpc < 1)
return;
else if (sc->nhpc < 2 && slot >= 4)
return;
else if (sc->nhpc < 3 && slot >= 8)
return;
else if (slot >= DWLPX_MAXDEV)
return;
hpcdev = slot >> 2;
pci_idsel = (1 << ((slot & 0x3) + 2));
paddr = (hpcdev << 22) | (pci_idsel << 16) | (func << 13);
if (secondary) {
paddr &= 0x1fffff;
paddr |= (secondary << 21);
#if 0
printf("write secondary %d reg %x (paddr %lx)",
secondary, offset, tag);
#endif
alpha_pal_draina();
s = splhigh();
/*
* Set up HPCs for type 1 cycles.
*/
for (i = 0; i < sc->nhpc; i++) {
rvp = REGVAL(PCIA_CTL(i)+sc->sysbase) | PCIA_CTL_T1CYC;
alpha_mb();
REGVAL(PCIA_CTL(i) + sc->sysbase) = rvp;
alpha_mb();
}
}
paddr |= ((unsigned long) ((off >> 2) << 7));
paddr |= ((sz - 1) << 3);
paddr |= DWLPX_PCI_CONF;
paddr |= ((unsigned long) hose) << 34;
paddr |= ((unsigned long) ionode) << 36;
paddr |= 1L << 39;
dp = (u_int32_t *)KV(paddr);
if (badaddr(dp, sizeof (*dp)) == 0) {
u_int32_t new_data;
if (sz == 1) {
new_data = SPARSE_BYTE_INSERT(off, data);
} else if (sz == 2) {
new_data = SPARSE_WORD_INSERT(off, data);
} else {
new_data = data;
}
#if 0
printf("CFGWRITE %d.%d.%d.%d.%d.%d.%d paddr 0x%lx data 0x%x -> 0x%x\n",
ionode+4, hose, bus, slot, func, off, sz, paddr, data, new_data);
#endif
*dp = new_data;
}
if (secondary) {
alpha_pal_draina();
for (i = 0; i < sc->nhpc; i++) {
rvp = REGVAL(PCIA_CTL(i)+sc->sysbase) & ~PCIA_CTL_T1CYC;
alpha_mb();
REGVAL(PCIA_CTL(i) + sc->sysbase) = rvp;
alpha_mb();
}
(void) splx(s);
}
}
static void
dwlpx_dma_init(struct dwlpx_softc *sc)
{
u_int32_t *tbl, sgwmask, sgwbase, sgwend;
int i, lim;
/*
* Determine size of Window C based on the amount of SGMAP
* page table SRAM available.
*/
if (sc->sgmapsz == DWLPX_SG128K) {
lim = 128 * 1024;
sgwmask = PCIA_WMASK_1G;
sgwbase = 1UL*1024UL*1024UL*1024UL;
} else {
lim = 32 * 1024;
sgwmask = PCIA_WMASK_256M;
sgwbase = 1UL*1024UL*1024UL*1024UL+3UL*256UL*1024UL*1024UL;
}
sgwend = sgwbase + (lim * 8192) - 1;
/*
* A few notes about SGMAP-mapped DMA on the DWLPx:
*
* The DWLPx has PCIA-resident SRAM that is used for
* the SGMAP page table; there is no TLB. The DWLPA
* has room for 32K entries, yielding a total of 256M
* of sgva space. The DWLPB has 32K entries or 128K
* entries, depending on TBIT, yielding either 256M or
* 1G of sgva space.
*/
/*
* Initialize the page table.
*/
tbl = (u_int32_t *) ALPHA_PHYS_TO_K0SEG(PCIA_SGMAP_PT + sc->sysbase);
for (i = 0; i < lim; i++)
tbl[i] = 0;
#if 0
/* XXX NOT DONE YET XXX */
/*
* Initialize the SGMAP for window C:
*
* Size: 256M or 1GB
* Window base: 1GB
* SGVA base: 0
*/
chipset.sgmap = sgmap_map_create(sgwbase, sgwend, dwlpx_sgmap_map, tbl);
#endif
/*
* Set up DMA windows for this DWLPx.
*/
for (i = 0; i < sc->nhpc; i++) {
REGVAL(PCIA_WMASK_A(i) + sc->sysbase) =
DWLPx_DIRECT_MAPPED_WMASK;
REGVAL(PCIA_TBASE_A(i) + sc->sysbase) = 0;
REGVAL(PCIA_WBASE_A(i) + sc->sysbase) =
DWLPx_DIRECT_MAPPED_BASE | PCIA_WBASE_W_EN;
REGVAL(PCIA_WMASK_B(i) + sc->sysbase) = 0;
REGVAL(PCIA_TBASE_B(i) + sc->sysbase) = 0;
REGVAL(PCIA_WBASE_B(i) + sc->sysbase) = 0;
REGVAL(PCIA_WMASK_C(i) + sc->sysbase) = sgwmask;
REGVAL(PCIA_TBASE_C(i) + sc->sysbase) = 0;
REGVAL(PCIA_WBASE_C(i) + sc->sysbase) =
sgwbase | PCIA_WBASE_W_EN | PCIA_WBASE_SG_EN;
}
alpha_mb();
/* XXX XXX BEGIN XXX XXX */
{ /* XXX */
alpha_XXX_dmamap_or = DWLPx_DIRECT_MAPPED_BASE; /* XXX */
} /* XXX */
/* XXX XXX END XXX XXX */
}
/*
*/
static void
dwlpx_intr(void *arg)
{
#ifdef SIMOS
extern void simos_intr(int);
simos_intr(0);
#else
unsigned long vec = (unsigned long) arg;
if ((vec & DWLPX_VEC_EMARK) != 0) {
dwlpx_eintr(vec);
return;
}
if ((vec & DWLPX_VEC_MARK) == 0) {
panic("dwlpx_intr: bad vector %p", arg);
/* NOTREACHED */
}
alpha_dispatch_intr(NULL, vec);
#endif
}
static void
dwlpx_eintr(unsigned long vec)
{
device_t dev;
struct dwlpx_softc *sc;
int ionode, hosenum, i;
struct {
u_int32_t err;
u_int32_t addr;
} hpcs[NHPC];
ionode = (vec >> 8) & 0xf;
hosenum = (vec >> 4) & 0x7;
if (ionode >= DWLPX_NIONODE || hosenum >= DWLPX_NHOSE) {
panic("dwlpx_iointr: mangled vector 0x%lx", vec);
/* NOTREACHED */
}
dev = dwlpxs[ionode][hosenum];
sc = DWLPX_SOFTC(dev);
for (i = 0; i < sc->nhpc; i++) {
hpcs[i].err = REGVAL(PCIA_ERR(i) + sc->sysbase);
hpcs[i].addr = REGVAL(PCIA_FADR(i) + sc->sysbase);
}
printf("%s: node %d hose %d error interrupt\n",
device_get_nameunit(dev), ionode + 4, hosenum);
for (i = 0; i < sc->nhpc; i++) {
if ((hpcs[i].err & PCIA_ERR_ERROR) == 0)
continue;
printf("\tHPC %d: ERR=0x%08x; DMA %s Memory, "
"Failing Address 0x%x\n",
i, hpcs[i].err, hpcs[i].addr & 0x1? "write to" :
"read from", hpcs[i].addr & ~3);
if (hpcs[i].err & PCIA_ERR_SERR_L)
printf("\t PCI device asserted SERR_L\n");
if (hpcs[i].err & PCIA_ERR_ILAT)
printf("\t Incremental Latency Exceeded\n");
if (hpcs[i].err & PCIA_ERR_SGPRTY)
printf("\t CPU access of SG RAM Parity Error\n");
if (hpcs[i].err & PCIA_ERR_ILLCSR)
printf("\t Illegal CSR Address Error\n");
if (hpcs[i].err & PCIA_ERR_PCINXM)
printf("\t Nonexistent PCI Address Error\n");
if (hpcs[i].err & PCIA_ERR_DSCERR)
printf("\t PCI Target Disconnect Error\n");
if (hpcs[i].err & PCIA_ERR_ABRT)
printf("\t PCI Target Abort Error\n");
if (hpcs[i].err & PCIA_ERR_WPRTY)
printf("\t PCI Write Parity Error\n");
if (hpcs[i].err & PCIA_ERR_DPERR)
printf("\t PCI Data Parity Error\n");
if (hpcs[i].err & PCIA_ERR_APERR)
printf("\t PCI Address Parity Error\n");
if (hpcs[i].err & PCIA_ERR_DFLT)
printf("\t SG Map RAM Invalid Entry Error\n");
if (hpcs[i].err & PCIA_ERR_DPRTY)
printf("\t DMA access of SG RAM Parity Error\n");
if (hpcs[i].err & PCIA_ERR_DRPERR)
printf("\t DMA Read Return Parity Error\n");
if (hpcs[i].err & PCIA_ERR_MABRT)
printf("\t PCI Master Abort Error\n");
if (hpcs[i].err & PCIA_ERR_CPRTY)
printf("\t CSR Parity Error\n");
if (hpcs[i].err & PCIA_ERR_COVR)
printf("\t CSR Overrun Error\n");
if (hpcs[i].err & PCIA_ERR_MBPERR)
printf("\t Mailbox Parity Error\n");
if (hpcs[i].err & PCIA_ERR_MBILI)
printf("\t Mailbox Illegal Length Error\n");
REGVAL(PCIA_ERR(i) + sc->sysbase) = hpcs[i].err;
}
}
static device_method_t dwlpx_methods[] = {
/* Device interface */
DEVMETHOD(device_probe, dwlpx_probe),
DEVMETHOD(device_attach, dwlpx_attach),
/* Bus interface */
DEVMETHOD(bus_print_child, bus_generic_print_child),
DEVMETHOD(bus_read_ivar, dwlpx_read_ivar),
DEVMETHOD(bus_setup_intr, dwlpx_setup_intr),
DEVMETHOD(bus_teardown_intr, dwlpx_teardown_intr),
DEVMETHOD(bus_alloc_resource, pci_alloc_resource),
DEVMETHOD(bus_release_resource, pci_release_resource),
DEVMETHOD(bus_activate_resource, pci_activate_resource),
DEVMETHOD(bus_deactivate_resource, pci_deactivate_resource),
/* alphapci interface */
DEVMETHOD(alphapci_cvt_dense, dwlpx_cvt_dense),
DEVMETHOD(alphapci_get_bustag, dwlpx_get_bustag),
DEVMETHOD(alphapci_get_rman, dwlpx_get_rman),
/* pcib interface */
DEVMETHOD(pcib_maxslots, dwlpx_maxslots),
DEVMETHOD(pcib_read_config, dwlpx_read_config),
DEVMETHOD(pcib_write_config, dwlpx_write_config),
{ 0, 0 }
};
static driver_t dwlpx_driver = {
"pcib", dwlpx_methods, sizeof (struct dwlpx_softc)
};
DRIVER_MODULE(pcib, kft, dwlpx_driver, dwlpx_devclass, 0, 0);
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