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NetBSD/sys/dev/marvell/gtpci.c

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/* $NetBSD: gtpci.c,v 1.5 2003/03/18 19:32:46 matt Exp $ */
/*
* Copyright (c) 2002 Allegro Networks, Inc., Wasabi Systems, Inc.
* 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 for the NetBSD Project by
* Allegro Networks, Inc., and Wasabi Systems, Inc.
* 4. The name of Allegro Networks, Inc. may not be used to endorse
* or promote products derived from this software without specific prior
* written permission.
* 5. The name of Wasabi Systems, Inc. may not be used to endorse
* or promote products derived from this software without specific prior
* written permission.
*
* THIS SOFTWARE IS PROVIDED BY ALLEGRO NETWORKS, INC. AND
* WASABI SYSTEMS, INC. ``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 EITHER ALLEGRO NETWORKS, INC. OR WASABI SYSTEMS, INC.
* 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_marvell.h"
#include <sys/param.h>
#include <sys/device.h>
#include <sys/extent.h>
#include <sys/malloc.h>
#include <lib/libkern/libkern.h>
#define _BUS_SPACE_PRIVATE
#define _BUS_DMA_PRIVATE
#include <machine/bus.h>
#include <machine/intr.h>
#include <dev/pci/pcireg.h>
#include <dev/pci/pcivar.h>
#include <dev/pci/pciconf.h>
#include <dev/marvell/gtreg.h>
#include <dev/marvell/gtvar.h>
#include <dev/marvell/gtintrreg.h>
#include <dev/marvell/gtpcireg.h>
#include <dev/marvell/gtpcivar.h>
#include <dev/marvell/gtvar.h>
static int gtpci_error_intr(void *);
static void gtpci_bus_init(struct gtpci_chipset *);
static void gtpci_bus_attach_hook(struct device *, struct device *,
struct pcibus_attach_args *);
static int gtpci_bus_maxdevs(pci_chipset_tag_t, int);
static const char *
gtpci_intr_string(pci_chipset_tag_t, pci_intr_handle_t);
static const struct evcnt *
gtpci_intr_evcnt(pci_chipset_tag_t, pci_intr_handle_t);
static void *gtpci_intr_establish(pci_chipset_tag_t, pci_intr_handle_t,
int, int (*)(void *), void *);
static void gtpci_intr_disestablish(pci_chipset_tag_t, void *);
#ifdef DEBUG
int gtpci_debug = 0;
#endif
struct gtpci_softc {
struct device gtpci_dev;
struct gtpci_chipset gtpci_gtpc;
};
static int gtpci_cfprint(void *, const char *);
static int gtpci_match(struct device *, struct cfdata *, void *);
static void gtpci_attach(struct device *, struct device *, void *);
CFATTACH_DECL(gtpci, sizeof(struct gtpci_softc),
gtpci_match, gtpci_attach, NULL, NULL);
extern struct cfdriver gtpci_cd;
static int gtpci_busmask;
const struct pci_chipset_functions gtpci_functions = {
gtpci_bus_attach_hook,
gtpci_bus_maxdevs,
gtpci_md_bus_devorder,
gtpci_make_tag,
gtpci_decompose_tag,
gtpci_conf_read,
gtpci_conf_write,
gtpci_md_conf_hook,
gtpci_md_conf_interrupt,
gtpci_md_intr_map,
gtpci_intr_string,
gtpci_intr_evcnt,
gtpci_intr_establish,
gtpci_intr_disestablish
};
int
gtpci_match(struct device *parent, struct cfdata *self, void *aux)
{
struct gt_softc * const gt = (struct gt_softc *) parent;
struct gt_attach_args * const ga = aux;
return GT_PCIOK(gt, ga, &gtpci_cd);
}
int
gtpci_cfprint(void *aux, const char *pnp)
{
struct pcibus_attach_args *pba = (struct pcibus_attach_args *) aux;
if (pnp)
aprint_normal("pci at %s", pnp);
aprint_normal(" bus %d", pba->pba_bus);
return (UNCONF);
}
void
gtpci_attach(struct device *parent, struct device *self, void *aux)
{
struct pcibus_attach_args pba;
struct gt_attach_args * const ga = aux;
struct gt_softc * const gt = (struct gt_softc *) parent;
struct gtpci_softc * const gtp = (struct gtpci_softc *) self;
struct gtpci_chipset * const gtpc = &gtp->gtpci_gtpc;
struct pci_chipset * const pc = &gtpc->gtpc_pc;
const int busno = ga->ga_unit;
uint32_t data;
GT_PCIFOUND(gt, ga);
pc->pc_funcs = &gtpci_functions;
pc->pc_parent = self;
gtpc->gtpc_busno = busno;
gtpc->gtpc_cfgaddr = PCI_CONFIG_ADDR(busno);
gtpc->gtpc_cfgdata = PCI_CONFIG_DATA(busno);
gtpc->gtpc_syncreg = PCI_SYNC_REG(busno);
gtpc->gtpc_gt_memt = ga->ga_memt;
gtpc->gtpc_gt_memh = ga->ga_memh;
switch (busno) {
case 0:
gtpc->gtpc_io_bs = gt->gt_pci0_iot;
gtpc->gtpc_mem_bs = gt->gt_pci0_memt;
break;
case 1:
gtpc->gtpc_io_bs = gt->gt_pci1_iot;
gtpc->gtpc_mem_bs = gt->gt_pci1_memt;
break;
default:
break;
}
/*
* If no bus_spaces exist, then it's been disabled.
*/
if (gtpc->gtpc_io_bs == NULL && gtpc->gtpc_mem_bs == NULL) {
aprint_normal(": disabled\n");
return;
}
aprint_normal("\n");
pba.pba_pc = pc;
pba.pba_bus = 0;
pba.pba_busname = "pci";
pba.pba_iot = gtpc->gtpc_io_bs;
pba.pba_memt = gtpc->gtpc_mem_bs;
pba.pba_dmat = gt->gt_dmat;
pba.pba_flags = 0;
if (pba.pba_iot != NULL)
pba.pba_flags |= PCI_FLAGS_IO_ENABLED;
if (pba.pba_memt != NULL)
pba.pba_flags |= PCI_FLAGS_MEM_ENABLED;
data = gtpci_read(gtpc, PCI_COMMAND(gtpc->gtpc_busno));
if (data & PCI_CMD_MRdMul)
pba.pba_flags |= PCI_FLAGS_MRM_OKAY;
if (data & PCI_CMD_MRdLine)
pba.pba_flags |= PCI_FLAGS_MRL_OKAY;
pba.pba_flags |= PCI_FLAGS_MWI_OKAY;
gt_watchdog_service();
config_found(self, &pba, gtpci_cfprint);
gt_watchdog_service();
/*
* clear any pre-existing error interrupt(s)
* clear latched pci error registers
* establish ISRs for PCI errors
* enable PCI error interrupts
*/
gtpci_write(gtpc, PCI_ERROR_CAUSE(gtpc->gtpc_busno), 0);
(void)gtpci_read(gtpc, PCI_ERROR_DATA_LOW(gtpc->gtpc_busno));
(void)gtpci_read(gtpc, PCI_ERROR_DATA_HIGH(gtpc->gtpc_busno));
(void)gtpci_read(gtpc, PCI_ERROR_COMMAND(gtpc->gtpc_busno));
(void)gtpci_read(gtpc, PCI_ERROR_ADDRESS_HIGH(gtpc->gtpc_busno));
(void)gtpci_read(gtpc, PCI_ERROR_ADDRESS_LOW(gtpc->gtpc_busno));
if (gtpc->gtpc_busno == 0) {
intr_establish(IRQ_PCI0_0, IST_LEVEL, IPL_GTERR,
gtpci_error_intr, pc);
intr_establish(IRQ_PCI0_1, IST_LEVEL, IPL_GTERR,
gtpci_error_intr, pc);
intr_establish(IRQ_PCI0_2, IST_LEVEL, IPL_GTERR,
gtpci_error_intr, pc);
aprint_normal("%s: %s%d error interrupts at irqs %d, %d, %d\n",
pc->pc_parent->dv_xname, "pci", busno,
IRQ_PCI0_0, IRQ_PCI0_1, IRQ_PCI0_2);
} else {
intr_establish(IRQ_PCI1_0, IST_LEVEL, IPL_GTERR,
gtpci_error_intr, pc);
intr_establish(IRQ_PCI1_1, IST_LEVEL, IPL_GTERR,
gtpci_error_intr, pc);
intr_establish(IRQ_PCI1_2, IST_LEVEL, IPL_GTERR,
gtpci_error_intr, pc);
aprint_normal("%s: %s%d error interrupts at irqs %d, %d, %d\n",
pc->pc_parent->dv_xname, "pci", busno,
IRQ_PCI1_0, IRQ_PCI1_1, IRQ_PCI1_2);
}
gtpci_write(gtpc, PCI_ERROR_MASK(gtpc->gtpc_busno), PCI_SERRMSK_ALL_ERRS);
gtpci_busmask |= (1 << busno);
}
void
gtpci_bus_init(struct gtpci_chipset *gtpc)
{
pci_chipset_tag_t pc = &gtpc->gtpc_pc;
pcitag_t tag;
pcireg_t pcidata;
uint32_t data, datal, datah;
/*
* We only about bus 0 device 0 function 0.
*/
tag = gtpci_make_tag(pc, 0, 0, 0);
/*
* disable all BARs to start.
*/
gtpci_write(gtpc, PCI_BASE_ADDR_REGISTERS_ENABLE(gtpc->gtpc_busno),
0xffffffff);
pcidata = gtpci_conf_read(pc, tag, 0x20) & 0xfff;
/*
* Enable internal arbiter
*/
data = gtpci_read(gtpc, PCI_ARBITER_CONTROL(gtpc->gtpc_busno));
data |= 0x80000000;
gtpci_write(gtpc, PCI_ARBITER_CONTROL(gtpc->gtpc_busno), data);
/*
* Make the GT reflects reality.
*/
gtpci_conf_write(pc, tag, 0x20,
GT_LowAddr_GET(gtpci_read(gtpc, GT_Internal_Decode)) | pcidata);
/*
* We always enable internal memory.
*/
data = PCI_BARE_IntMemEn;
/*
* Map each SCS BAR to correspond to each SDRAM decode register.
*/
datal = GT_LowAddr_GET(gtpci_read(gtpc, GT_SCS0_Low_Decode));
datah = GT_HighAddr_GET(gtpci_read(gtpc, GT_SCS0_High_Decode)) + 1;
pcidata = gtpci_conf_read(pc, tag, 0x10) & 0xfff;
if (datal < datah) {
pcidata |= datal;
datah -= datal;
data |= PCI_BARE_SCS0En;
} else {
datah = 0;
}
gtpci_conf_write(pc, tag, 0x10, pcidata);
gtpci_write(gtpc, PCI_SCS0_BAR_SIZE(gtpc->gtpc_busno), datah);
datal = GT_LowAddr_GET(gtpci_read(gtpc, GT_SCS1_Low_Decode));
datah = GT_HighAddr_GET(gtpci_read(gtpc, GT_SCS1_High_Decode)) + 1;
pcidata = gtpci_conf_read(pc, tag, 0x14) & 0xfff;
if (datal < datah) {
pcidata |= datal;
datah -= datal;
data |= PCI_BARE_SCS1En;
} else {
datah = 0;
}
gtpci_conf_write(pc, tag, 0x14, pcidata);
gtpci_write(gtpc, PCI_SCS1_BAR_SIZE(gtpc->gtpc_busno), datah);
datal = GT_LowAddr_GET(gtpci_read(gtpc, GT_SCS2_Low_Decode));
datah = GT_HighAddr_GET(gtpci_read(gtpc, GT_SCS2_High_Decode)) + 1;
pcidata = gtpci_conf_read(pc, tag, 0x18) & 0xfff;
if (datal < datah) {
pcidata |= datal;
datah -= datal;
data |= PCI_BARE_SCS2En;
} else {
datah = 0;
}
gtpci_conf_write(pc, tag, 0x18, pcidata);
gtpci_write(gtpc, PCI_SCS2_BAR_SIZE(gtpc->gtpc_busno), datah);
datal = GT_LowAddr_GET(gtpci_read(gtpc, GT_SCS3_Low_Decode));
datah = GT_HighAddr_GET(gtpci_read(gtpc, GT_SCS3_High_Decode)) + 1;
pcidata = gtpci_conf_read(pc, tag, 0x1c) & 0xfff;
if (datal < datah) {
pcidata |= datal;
datah -= datal;
data |= PCI_BARE_SCS3En;
} else {
datah = 0;
}
gtpci_conf_write(pc, tag, 0x1c, pcidata);
gtpci_write(gtpc, PCI_SCS3_BAR_SIZE(gtpc->gtpc_busno), datah);
/*
* Now re-enable those BARs that are real.
*/
gtpci_write(gtpc, PCI_BASE_ADDR_REGISTERS_ENABLE(gtpc->gtpc_busno),
data);
/*
* Enable I/O, memory, and bus master access.
*/
pcidata = gtpci_conf_read(pc, tag, PCI_COMMAND_STATUS_REG);
pcidata |= PCI_COMMAND_IO_ENABLE;
pcidata |= PCI_COMMAND_MEM_ENABLE;
pcidata |= PCI_COMMAND_MASTER_ENABLE;
gtpci_conf_write(pc, tag, PCI_COMMAND_STATUS_REG, pcidata);
}
void
gtpci_bus_attach_hook(struct device *parent, struct device *self,
struct pcibus_attach_args *pba)
{
struct gtpci_chipset *gtpc = (struct gtpci_chipset *) pba->pba_pc;
uint32_t data;
#ifdef DEBUG
pcitag_t tag;
#endif
if (gtpc->gtpc_pc.pc_parent != parent)
return;
data = gtpci_read(gtpc, PCI_MODE(gtpc->gtpc_busno));
aprint_normal(": id %d%s%s%s%s%s%s%s%s",
PCI_MODE_PciID_GET(data),
(data & PCI_MODE_Pci64) ? ", 64bit" : "",
(data & PCI_MODE_ExpRom) ? ", Expansion Rom" : "",
(data & PCI_MODE_VPD) ? ", VPD" : "",
(data & PCI_MODE_MSI) ? ", MSI" : "",
(data & PCI_MODE_PMG) ? ", PMG" : "",
(data & PCI_MODE_HotSwap) ? ", HotSwap" : "",
(data & PCI_MODE_BIST) ? ", BIST" : "",
(data & PCI_MODE_PRst) ? "" : ", PRst");
#if 0
while ((data & PCI_MODE_PRst) == 0) {
DELAY(10);
data = gtpci_read(gtpc, PCI_MODE(gtpc->gtpc_busno));
aprint_normal(".");
}
#endif
gtpci_bus_init(gtpc);
gtpci_bus_configure(gtpc);
#if defined(DEBUG)
tag = gtpci_make_tag(pc, 0, 0, 0);
data = gtpci_read(gtpc, PCI_BASE_ADDR_REGISTERS_ENABLE(gtpc->gtpc_busno));
aprint_normal("\n%s: BARs enabled: %#x", self->dv_xname, data);
aprint_normal("\n%s: 0:0:0\n", self->dv_xname);
aprint_normal(" %sSCS0=%#010x",
(data & 1) ? "-" : "+",
gtpci_conf_read(pc, tag, 0x10));
aprint_normal("/%#010x", gtpci_read(gtpc,
PCI_SCS0_BAR_SIZE(gtpc->gtpc_busno))+0x1000);
aprint_normal(" remap %#010x\n",
gtpci_read(gtpc, PCI_SCS0_BASE_ADDR_REMAP(gtpc->gtpc_busno)));
aprint_normal(" %sSCS1=%#010x",
(data & 2) ? "-" : "+",
gtpci_conf_read(pc, tag, 0x14));
aprint_normal("/%#010x",
gtpci_read(gtpc, PCI_SCS1_BAR_SIZE(gtpc->gtpc_busno))+0x1000);
aprint_normal(" remap %#010x\n",
gtpci_read(gtpc, PCI_SCS1_BASE_ADDR_REMAP(gtpc->gtpc_busno)));
aprint_normal(" %sSCS2=%#010x",
(data & 4) ? "-" : "+",
gtpci_conf_read(pc, tag, 0x18));
aprint_normal("/%#010x",
gtpci_read(gtpc, PCI_SCS2_BAR_SIZE(gtpc->gtpc_busno))+0x1000);
aprint_normal(" remap %#010x\n",
gtpci_read(gtpc, PCI_SCS2_BASE_ADDR_REMAP(gtpc->gtpc_busno)));
aprint_normal(" %sSCS3=%#010x",
(data & 8) ? "-" : "+",
gtpci_conf_read(pc, tag, 0x1c));
aprint_normal("/%#010x",
gtpci_read(gtpc, PCI_SCS3_BAR_SIZE(gtpc->gtpc_busno))+0x1000);
aprint_normal(" remap %#010x\n",
gtpci_read(gtpc, PCI_SCS3_BASE_ADDR_REMAP(gtpc->gtpc_busno)));
aprint_normal(" %sIMem=%#010x",
(data & PCI_BARE_IntMemEn) ? "-" : "+",
gtpci_conf_read(pc, tag, 0x20));
aprint_normal("\n");
aprint_normal(" %sIIO=%#010x",
(data & PCI_BARE_IntIOEn) ? "-" : "+",
gtpci_conf_read(pc, tag, 0x24));
aprint_normal("\n");
tag = gtpci_make_tag(pc, 0, 0, 1);
aprint_normal(" %sCS0=%#010x",
(data & PCI_BARE_CS0En) ? "-" : "+",
gtpci_conf_read(pc, tag, 0x10));
aprint_normal("/%#010x",
gtpci_read(gtpc, PCI_CS0_BAR_SIZE(gtpc->gtpc_busno))+0x1000);
aprint_normal(" remap %#010x\n",
gtpci_read(gtpc, PCI_CS0_BASE_ADDR_REMAP(gtpc->gtpc_busno)));
aprint_normal(" %sCS1=%#010x",
(data & PCI_BARE_CS1En) ? "-" : "+",
gtpci_conf_read(pc, tag, 0x14));
aprint_normal("/%#010x",
gtpci_read(gtpc, PCI_CS1_BAR_SIZE(gtpc->gtpc_busno))+0x1000);
aprint_normal(" remap %#010x\n",
gtpci_read(gtpc, PCI_CS1_BASE_ADDR_REMAP(gtpc->gtpc_busno)));
aprint_normal(" %sCS2=%#010x",
(data & PCI_BARE_CS2En) ? "-" : "+",
gtpci_conf_read(pc, tag, 0x18));
aprint_normal("/%#010x",
gtpci_read(gtpc, PCI_CS2_BAR_SIZE(gtpc->gtpc_busno))+0x1000);
aprint_normal(" remap %#010x\n",
gtpci_read(gtpc, PCI_CS2_BASE_ADDR_REMAP(gtpc->gtpc_busno)));
aprint_normal(" %sCS3=%#010x",
(data & PCI_BARE_CS3En) ? "-" : "+",
gtpci_conf_read(pc, tag, 0x1c));
aprint_normal("/%#010x",
gtpci_read(gtpc, PCI_CS3_BAR_SIZE(gtpc->gtpc_busno))+0x1000);
aprint_normal(" remap %#010x\n",
gtpci_read(gtpc, PCI_CS3_BASE_ADDR_REMAP(gtpc->gtpc_busno)));
aprint_normal(" %sBootCS=%#010x",
(data & PCI_BARE_BootCSEn) ? "-" : "+",
gtpci_conf_read(pc, tag, 0x20));
aprint_normal("/%#010x",
gtpci_read(gtpc, PCI_BOOTCS_BAR_SIZE(gtpc->gtpc_busno))+0x1000);
aprint_normal(" remap %#010x\n",
gtpci_read(gtpc, PCI_BOOTCS_ADDR_REMAP(gtpc->gtpc_busno)));
tag = gtpci_make_tag(pc, 0, 0, 2);
aprint_normal(" %sP2PM0=%#010x",
(data & PCI_BARE_P2PMem0En) ? "-" : "+",
gtpci_conf_read(pc, tag, 0x10));
aprint_normal("/%#010x",
gtpci_read(gtpc, PCI_P2P_MEM0_BAR_SIZE(gtpc->gtpc_busno))+0x1000);
aprint_normal(" remap %#010x.%#010x\n",
gtpci_read(gtpc, PCI_P2P_MEM0_BASE_ADDR_REMAP_HIGH(gtpc->gtpc_busno)),
gtpci_read(gtpc, PCI_P2P_MEM0_BASE_ADDR_REMAP_LOW(gtpc->gtpc_busno)));
aprint_normal(" %sP2PM1=%#010x",
(data & PCI_BARE_P2PMem1En) ? "-" : "+",
gtpci_conf_read(pc, tag, 0x14));
aprint_normal("/%#010x",
gtpci_read(gtpc, PCI_P2P_MEM1_BAR_SIZE(gtpc->gtpc_busno))+0x1000);
aprint_normal(" remap %#010x.%#010x\n",
gtpci_read(gtpc, PCI_P2P_MEM1_BASE_ADDR_REMAP_HIGH(gtpc->gtpc_busno)),
gtpci_read(gtpc, PCI_P2P_MEM1_BASE_ADDR_REMAP_LOW(gtpc->gtpc_busno)));
aprint_normal(" %sP2PIO=%#010x",
(data & PCI_BARE_P2PIOEn) ? "-" : "+",
gtpci_conf_read(pc, tag, 0x18));
aprint_normal("/%#010x",
gtpci_read(gtpc, PCI_P2P_IO_BAR_SIZE(gtpc->gtpc_busno))+0x1000);
aprint_normal(" remap %#010x\n",
gtpci_read(gtpc, PCI_P2P_IO_BASE_ADDR_REMAP(gtpc->gtpc_busno)));
aprint_normal(" %sCPU=%#010x",
(data & PCI_BARE_CPUEn) ? "-" : "+",
gtpci_conf_read(pc, tag, 0x1c));
aprint_normal("/%#010x",
gtpci_read(gtpc, PCI_CPU_BAR_SIZE(gtpc->gtpc_busno))+0x1000);
aprint_normal(" remap %#010x\n",
gtpci_read(gtpc, PCI_CPU_BASE_ADDR_REMAP(gtpc->gtpc_busno)));
#endif
data = gtpci_read(gtpc, PCI_COMMAND(gtpc->gtpc_busno));
if (data & (PCI_CMD_MSwapEn|PCI_CMD_SSwapEn)) {
aprint_normal("\n%s: ", self->dv_xname);
if (data & PCI_CMD_MSwapEn) {
switch (data & (PCI_CMD_MWordSwap|PCI_CMD_MByteSwap)) {
case PCI_CMD_MWordSwap:
aprint_normal(" mswap=w"); break;
case PCI_CMD_MByteSwap:
aprint_normal(" mswap=b"); break;
case PCI_CMD_MWordSwap|PCI_CMD_MByteSwap:
aprint_normal(" mswap=b+w"); break;
case 0:
aprint_normal(" mswap=none"); break;
}
}
if (data & PCI_CMD_SSwapEn) {
switch (data & (PCI_CMD_SWordSwap|PCI_CMD_SByteSwap)) {
case PCI_CMD_SWordSwap:
aprint_normal(" sswap=w"); break;
case PCI_CMD_SByteSwap:
aprint_normal(" sswap=b"); break;
case PCI_CMD_SWordSwap|PCI_CMD_SByteSwap:
aprint_normal(" sswap=b+w"); break;
case 0:
aprint_normal(" sswap=none"); break;
}
}
}
#if DEBUG
for (i = 0; i < 8; i++) {
aprint_normal("\n%s: Access Control %d: ", self->dv_xname, i);
aprint_normal("base(hi=%#x,lo=%#x)=0x%08x.%03xxxxxx",
PCI_ACCESS_CONTROL_BASE_HIGH(gtpc->gtpc_busno, i),
PCI_ACCESS_CONTROL_BASE_LOW(gtpc->gtpc_busno, i),
gtpci_read(gtpc,
PCI_ACCESS_CONTROL_BASE_HIGH(gtpc->gtpc_busno, i)),
gtpci_read(gtpc,
PCI_ACCESS_CONTROL_BASE_LOW(gtpc->gtpc_busno, i)) & 0xfff);
aprint_normal(" cfg=%#x",
gtpci_read(gtpc,
PCI_ACCESS_CONTROL_BASE_LOW(gtpc->gtpc_busno, i)) & ~0xfff);
aprint_normal(" top(%#x)=%#x",
PCI_ACCESS_CONTROL_TOP(gtpc->gtpc_busno, i),
gtpci_read(gtpc,
PCI_ACCESS_CONTROL_TOP(gtpc->gtpc_busno, i)));
}
#endif
#if 0
gtpci_write(gtpc, PCI_ACCESS_CONTROL_BASE_HIGH(gtpc->gtpc_busno, 0), 0);
gtpci_write(gtpc, PCI_ACCESS_CONTROL_BASE_LOW(gtpc->gtpc_busno, 0),
0x01001000);
gtpci_write(gtpc, PCI_ACCESS_CONTROL_TOP(gtpc->gtpc_busno, 0),
0x00000020);
#endif
}
static const char * const gtpci_error_strings[] = PCI_IC_SEL_Strings;
int
gtpci_error_intr(void *arg)
{
pci_chipset_tag_t pc = arg;
struct gtpci_chipset *gtpc = (struct gtpci_chipset *)pc;
uint32_t cause, mask, errmask;
u_int32_t alo, ahi, dlo, dhi, cmd;
int i;
cause = gtpci_read(gtpc, PCI_ERROR_CAUSE(gtpc->gtpc_busno));
errmask = gtpci_read(gtpc, PCI_ERROR_MASK(gtpc->gtpc_busno));
cause &= (errmask | (0x1f << 27));
gtpci_write(gtpc, PCI_ERROR_CAUSE(gtpc->gtpc_busno), ~cause);
printf("%s: pci%d error: cause=%#x mask=%#x",
pc->pc_parent->dv_xname, gtpc->gtpc_busno, cause, errmask);
if ((cause & ~(0x1f << 27)) == 0) {
printf(" ?\n");
return 0;
}
for (i = 0, mask = 1; i <= 26; i++, mask += mask)
if (mask & cause)
printf(" %s", gtpci_error_strings[i]);
/*
* "no new data is latched until the PCI Error Low Address
* register is read. This means that PCI Error Low Address
* register must be the last register read by the interrupt
* handler."
*/
dlo = gtpci_read(gtpc, PCI_ERROR_DATA_LOW(gtpc->gtpc_busno));
dhi = gtpci_read(gtpc, PCI_ERROR_DATA_HIGH(gtpc->gtpc_busno));
cmd = gtpci_read(gtpc, PCI_ERROR_COMMAND(gtpc->gtpc_busno));
ahi = gtpci_read(gtpc, PCI_ERROR_ADDRESS_HIGH(gtpc->gtpc_busno));
alo = gtpci_read(gtpc, PCI_ERROR_ADDRESS_LOW(gtpc->gtpc_busno));
printf("\n%s: pci%d error: %s cmd %#x data %#x.%#x address=%#x.%#x\n",
pc->pc_parent->dv_xname, gtpc->gtpc_busno,
gtpci_error_strings[PCI_IC_SEL_GET(cause)],
cmd, dhi, dlo, ahi, alo);
#if defined(DEBUG) && defined(DDB)
if (gtpci_debug > 0)
Debugger();
#endif
return 1;
}
#if 0
void
gtpci_bs_region_add(pci_chipset_tag_t pc, struct discovery_bus_space *bs,
struct gt_softc *gt, bus_addr_t lo, bus_addr_t hi)
{
/* See how I/O space is configured. Read the base and top
* registers.
*/
paddr_t pbasel, pbaseh;
uint32_t datal, datah;
datal = gtpci_read(gtpc, lo);
datah = gtpci_read(gtpc, hi);
pbasel = GT_LowAddr_GET(datal);
pbaseh = GT_HighAddr_GET(datah);
/*
* If the start is greater than the end, ignore the region.
*/
if (pbaseh < pbasel)
return;
if ((pbasel & gt->gt_iobat_mask) == gt->gt_iobat_pbase
&& (pbaseh & gt->gt_iobat_mask) == gt->gt_iobat_pbase) {
bs->bs_regions[bs->bs_nregion].br_vbase =
gt->gt_iobat_vbase + (pbasel & ~gt->gt_iobat_mask);
}
bs->bs_regions[bs->bs_nregion].br_pbase = pbasel;
if (bs->bs_flags & _BUS_SPACE_RELATIVE) {
bs->bs_regions[bs->bs_nregion].br_start = 0;
bs->bs_regions[bs->bs_nregion].br_end = pbaseh - pbasel;
} else {
bs->bs_regions[bs->bs_nregion].br_start = pbasel;
bs->bs_regions[bs->bs_nregion].br_end = pbaseh;
}
bs->bs_nregion++;
}
#endif
/*
* Internal functions.
*/
int
gtpci_bus_maxdevs(pci_chipset_tag_t pc, int busno)
{
return 32;
}
pcitag_t
gtpci_make_tag(pci_chipset_tag_t pc, int busno, int devno, int funcno)
{
return PCI_CFG_MAKE_TAG(busno, devno, funcno, 0);
}
void
gtpci_decompose_tag(pci_chipset_tag_t pc, pcitag_t tag,
int *bp, int *dp, int *fp)
{
if (bp != NULL)
*bp = PCI_CFG_GET_BUSNO(tag);
if (dp != NULL)
*dp = PCI_CFG_GET_DEVNO(tag);
if (fp != NULL)
*fp = PCI_CFG_GET_FUNCNO(tag);
}
pcireg_t
gtpci_conf_read(pci_chipset_tag_t pc, pcitag_t tag, int regno)
{
struct gtpci_chipset *gtpc = (struct gtpci_chipset *)pc;
#ifdef DIAGNOSTIC
if ((regno & 3) || ((regno + 3) & ~0xff))
panic("gtpci_conf_read: bad regno %#x\n", regno);
#endif
gtpci_write(gtpc, gtpc->gtpc_cfgaddr, (int) tag | regno);
return gtpci_read(gtpc, gtpc->gtpc_cfgdata);
}
void
gtpci_conf_write(pci_chipset_tag_t pc, pcitag_t tag, int regno, pcireg_t data)
{
struct gtpci_chipset *gtpc = (struct gtpci_chipset *)pc;
#ifdef DIAGNOSTIC
if ((regno & 3) || ((regno + 3) & ~0xff))
panic("gtpci_conf_write: bad regno %#x\n", regno);
#endif
gtpci_write(gtpc, gtpc->gtpc_cfgaddr, (int) tag | regno);
gtpci_write(gtpc, gtpc->gtpc_cfgdata, data);
}
const char *
gtpci_intr_string(pci_chipset_tag_t pc, pci_intr_handle_t pih)
{
return intr_string(pih);
}
const struct evcnt *
gtpci_intr_evcnt(pci_chipset_tag_t pc, pci_intr_handle_t pih)
{
return intr_evcnt(pih);
}
void *
gtpci_intr_establish(pci_chipset_tag_t pc, pci_intr_handle_t pih,
int ipl, int (*handler)(void *), void *arg)
{
return intr_establish(pih, IST_LEVEL, ipl, handler, arg);
}
void
gtpci_intr_disestablish(pci_chipset_tag_t pc, void *cookie)
{
intr_disestablish(cookie);
}
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