a0ab71761c
routines are necessary to allow the use of certain types of hardware on the alpha, particularly a Myrinet card. Submitted by: Andrew Gallatin <gallatin@cs.duke.edu>
384 lines
8.4 KiB
C
384 lines
8.4 KiB
C
/*-
|
|
* 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.
|
|
*
|
|
* $Id: lca.c,v 1.2 1998/09/23 21:23:51 msmith Exp $
|
|
*/
|
|
|
|
#include <sys/param.h>
|
|
#include <sys/systm.h>
|
|
#include <sys/kernel.h>
|
|
#include <sys/module.h>
|
|
#include <sys/bus.h>
|
|
|
|
#include <alpha/pci/lcareg.h>
|
|
#include <alpha/pci/lcavar.h>
|
|
#include <machine/swiz.h>
|
|
#include <machine/intr.h>
|
|
#include <machine/cpuconf.h>
|
|
|
|
#define KV(pa) ALPHA_PHYS_TO_K0SEG(pa)
|
|
|
|
static devclass_t lca_devclass;
|
|
static device_t lca0; /* XXX only one for now */
|
|
static device_t isa0;
|
|
|
|
struct lca_softc {
|
|
int junk;
|
|
};
|
|
|
|
#define LCA_SOFTC(dev) (struct lca_softc*) device_get_softc(dev)
|
|
|
|
static alpha_chipset_inb_t lca_inb;
|
|
static alpha_chipset_inw_t lca_inw;
|
|
static alpha_chipset_inl_t lca_inl;
|
|
static alpha_chipset_outb_t lca_outb;
|
|
static alpha_chipset_outw_t lca_outw;
|
|
static alpha_chipset_outl_t lca_outl;
|
|
static alpha_chipset_readb_t lca_readb;
|
|
static alpha_chipset_readw_t lca_readw;
|
|
static alpha_chipset_readl_t lca_readl;
|
|
static alpha_chipset_writeb_t lca_writeb;
|
|
static alpha_chipset_writew_t lca_writew;
|
|
static alpha_chipset_writel_t lca_writel;
|
|
static alpha_chipset_maxdevs_t lca_maxdevs;
|
|
static alpha_chipset_cfgreadb_t lca_cfgreadb;
|
|
static alpha_chipset_cfgreadw_t lca_cfgreadw;
|
|
static alpha_chipset_cfgreadl_t lca_cfgreadl;
|
|
static alpha_chipset_cfgwriteb_t lca_cfgwriteb;
|
|
static alpha_chipset_cfgwritew_t lca_cfgwritew;
|
|
static alpha_chipset_cfgwritel_t lca_cfgwritel;
|
|
static alpha_chipset_addrcvt_t lca_cvt_dense;
|
|
|
|
static alpha_chipset_t lca_chipset = {
|
|
lca_inb,
|
|
lca_inw,
|
|
lca_inl,
|
|
lca_outb,
|
|
lca_outw,
|
|
lca_outl,
|
|
lca_readb,
|
|
lca_readw,
|
|
lca_readl,
|
|
lca_writeb,
|
|
lca_writew,
|
|
lca_writel,
|
|
lca_maxdevs,
|
|
lca_cfgreadb,
|
|
lca_cfgreadw,
|
|
lca_cfgreadl,
|
|
lca_cfgwriteb,
|
|
lca_cfgwritew,
|
|
lca_cfgwritel,
|
|
lca_cvt_dense,
|
|
};
|
|
|
|
static u_int8_t
|
|
lca_inb(u_int32_t port)
|
|
{
|
|
alpha_mb();
|
|
return SPARSE_READ_BYTE(KV(LCA_PCI_SIO), port);
|
|
}
|
|
|
|
static u_int16_t
|
|
lca_inw(u_int32_t port)
|
|
{
|
|
alpha_mb();
|
|
return SPARSE_READ_WORD(KV(LCA_PCI_SIO), port);
|
|
}
|
|
|
|
static u_int32_t
|
|
lca_inl(u_int32_t port)
|
|
{
|
|
alpha_mb();
|
|
return SPARSE_READ_LONG(KV(LCA_PCI_SIO), port);
|
|
}
|
|
|
|
static void
|
|
lca_outb(u_int32_t port, u_int8_t data)
|
|
{
|
|
SPARSE_WRITE_BYTE(KV(LCA_PCI_SIO), port, data);
|
|
alpha_wmb();
|
|
}
|
|
|
|
static void
|
|
lca_outw(u_int32_t port, u_int16_t data)
|
|
{
|
|
SPARSE_WRITE_WORD(KV(LCA_PCI_SIO), port, data);
|
|
alpha_wmb();
|
|
}
|
|
|
|
static void
|
|
lca_outl(u_int32_t port, u_int32_t data)
|
|
{
|
|
SPARSE_WRITE_LONG(KV(LCA_PCI_SIO), port, data);
|
|
alpha_wmb();
|
|
}
|
|
|
|
/*
|
|
* The LCA HAE is write-only. According to NetBSD, this is where it starts.
|
|
*/
|
|
static u_int32_t lca_hae_mem = 0x80000000;
|
|
|
|
/*
|
|
* The first 16Mb ignores the HAE. The next 112Mb uses the HAE to set
|
|
* the high bits of the PCI address.
|
|
*/
|
|
#define REG1 (1UL << 24)
|
|
|
|
static __inline void
|
|
lca_set_hae_mem(u_int32_t *pa)
|
|
{
|
|
int s;
|
|
u_int32_t msb;
|
|
if(*pa >= REG1){
|
|
msb = *pa & 0xf8000000;
|
|
*pa -= msb;
|
|
s = splhigh();
|
|
if (msb != lca_hae_mem) {
|
|
lca_hae_mem = msb;
|
|
REGVAL(LCA_IOC_HAE) = lca_hae_mem;
|
|
alpha_mb();
|
|
alpha_mb();
|
|
}
|
|
splx(s);
|
|
}
|
|
}
|
|
|
|
static u_int8_t
|
|
lca_readb(u_int32_t pa)
|
|
{
|
|
alpha_mb();
|
|
lca_set_hae_mem(&pa);
|
|
return SPARSE_READ_BYTE(KV(LCA_PCI_SPARSE), pa);
|
|
}
|
|
|
|
static u_int16_t
|
|
lca_readw(u_int32_t pa)
|
|
{
|
|
alpha_mb();
|
|
lca_set_hae_mem(&pa);
|
|
return SPARSE_READ_WORD(KV(LCA_PCI_SPARSE), pa);
|
|
}
|
|
|
|
static u_int32_t
|
|
lca_readl(u_int32_t pa)
|
|
{
|
|
alpha_mb();
|
|
lca_set_hae_mem(&pa);
|
|
return SPARSE_READ_LONG(KV(LCA_PCI_SPARSE), pa);
|
|
}
|
|
|
|
static void
|
|
lca_writeb(u_int32_t pa, u_int8_t data)
|
|
{
|
|
lca_set_hae_mem(&pa);
|
|
SPARSE_WRITE_BYTE(KV(LCA_PCI_SPARSE), pa, data);
|
|
alpha_wmb();
|
|
}
|
|
|
|
static void
|
|
lca_writew(u_int32_t pa, u_int16_t data)
|
|
{
|
|
lca_set_hae_mem(&pa);
|
|
SPARSE_WRITE_WORD(KV(LCA_PCI_SPARSE), pa, data);
|
|
alpha_wmb();
|
|
}
|
|
|
|
static void
|
|
lca_writel(u_int32_t pa, u_int32_t data)
|
|
{
|
|
lca_set_hae_mem(&pa);
|
|
SPARSE_WRITE_LONG(KV(LCA_PCI_SPARSE), pa, data);
|
|
alpha_wmb();
|
|
}
|
|
|
|
static int
|
|
lca_maxdevs(u_int b)
|
|
{
|
|
return 12; /* XXX */
|
|
}
|
|
|
|
#define LCA_CFGOFF(b, s, f, r) \
|
|
((b) ? (((b) << 16) | ((s) << 11) | ((f) << 8) | (r)) \
|
|
: ((1 << ((s) + 11)) | ((f) << 8) | (r)))
|
|
|
|
#define LCA_TYPE1_SETUP(b,s) if ((b)) { \
|
|
do { \
|
|
(s) = splhigh(); \
|
|
alpha_mb(); \
|
|
REGVAL(LCA_IOC_CONF) = 1; \
|
|
alpha_mb(); \
|
|
} while(0); \
|
|
}
|
|
|
|
#define LCA_TYPE1_TEARDOWN(b,s) if ((b)) { \
|
|
do { \
|
|
alpha_mb(); \
|
|
REGVAL(LCA_IOC_CONF) = 0; \
|
|
alpha_mb(); \
|
|
splx((s)); \
|
|
} while(0); \
|
|
}
|
|
|
|
#define CFGREAD(b, s, f, r, width, type) \
|
|
type val = ~0; \
|
|
int ipl = 0; \
|
|
vm_offset_t off = LCA_CFGOFF(b, s, f, r); \
|
|
vm_offset_t kv = SPARSE_##width##_ADDRESS(KV(LCA_PCI_CONF), off); \
|
|
alpha_mb(); \
|
|
LCA_TYPE1_SETUP(b,ipl); \
|
|
if (!badaddr((caddr_t)kv, sizeof(type))) { \
|
|
val = SPARSE_##width##_EXTRACT(off, SPARSE_READ(kv)); \
|
|
} \
|
|
LCA_TYPE1_TEARDOWN(b,ipl); \
|
|
return val
|
|
|
|
#define CFGWRITE(b, s, f, r, data, width, type) \
|
|
int ipl = 0; \
|
|
vm_offset_t off = LCA_CFGOFF(b, s, f, r); \
|
|
vm_offset_t kv = SPARSE_##width##_ADDRESS(KV(LCA_PCI_CONF), off); \
|
|
alpha_mb(); \
|
|
LCA_TYPE1_SETUP(b,ipl); \
|
|
if (!badaddr((caddr_t)kv, sizeof(type))) { \
|
|
SPARSE_WRITE(kv, SPARSE_##width##_INSERT(off, data)); \
|
|
alpha_wmb(); \
|
|
} \
|
|
LCA_TYPE1_TEARDOWN(b,ipl); \
|
|
return
|
|
|
|
static u_int8_t
|
|
lca_cfgreadb(u_int b, u_int s, u_int f, u_int r)
|
|
{
|
|
CFGREAD(b, s, f, r, BYTE, u_int8_t);
|
|
}
|
|
|
|
static u_int16_t
|
|
lca_cfgreadw(u_int b, u_int s, u_int f, u_int r)
|
|
{
|
|
CFGREAD(b, s, f, r, WORD, u_int16_t);
|
|
}
|
|
|
|
static u_int32_t
|
|
lca_cfgreadl(u_int b, u_int s, u_int f, u_int r)
|
|
{
|
|
CFGREAD(b, s, f, r, LONG, u_int32_t);
|
|
}
|
|
|
|
static void
|
|
lca_cfgwriteb(u_int b, u_int s, u_int f, u_int r, u_int8_t data)
|
|
{
|
|
CFGWRITE(b, s, f, r, data, BYTE, u_int8_t);
|
|
}
|
|
|
|
static void
|
|
lca_cfgwritew(u_int b, u_int s, u_int f, u_int r, u_int16_t data)
|
|
{
|
|
CFGWRITE(b, s, f, r, data, WORD, u_int16_t);
|
|
}
|
|
|
|
static void
|
|
lca_cfgwritel(u_int b, u_int s, u_int f, u_int r, u_int32_t data)
|
|
{
|
|
CFGWRITE(b, s, f, r, data, LONG, u_int16_t);
|
|
}
|
|
|
|
static vm_offset_t
|
|
lca_cvt_dense(vm_offset_t addr)
|
|
{
|
|
addr &= 0xffffffffUL;
|
|
return (addr | LCA_PCI_DENSE);
|
|
|
|
}
|
|
|
|
|
|
static int lca_probe(device_t dev);
|
|
static int lca_attach(device_t dev);
|
|
static void *lca_create_intr(device_t dev, device_t child, int irq, driver_intr_t *intr, void *arg);
|
|
static int lca_connect_intr(device_t dev, void* ih);
|
|
|
|
static device_method_t lca_methods[] = {
|
|
/* Device interface */
|
|
DEVMETHOD(device_probe, lca_probe),
|
|
DEVMETHOD(device_attach, lca_attach),
|
|
|
|
/* Bus interface */
|
|
|
|
{ 0, 0 }
|
|
};
|
|
|
|
static driver_t lca_driver = {
|
|
"lca",
|
|
lca_methods,
|
|
DRIVER_TYPE_MISC,
|
|
sizeof(struct lca_softc),
|
|
};
|
|
|
|
void
|
|
lca_init()
|
|
{
|
|
static int initted = 0;
|
|
|
|
if (initted) return;
|
|
initted = 1;
|
|
|
|
/* Type 0 PCI conf access. */
|
|
REGVAL64(LCA_IOC_CONF) = 0;
|
|
|
|
if (platform.pci_intr_init)
|
|
platform.pci_intr_init();
|
|
|
|
chipset = lca_chipset;
|
|
}
|
|
|
|
static int
|
|
lca_probe(device_t dev)
|
|
{
|
|
if (lca0)
|
|
return ENXIO;
|
|
lca0 = dev;
|
|
device_set_desc(dev, "21066 PCI adapter"); /* XXX */
|
|
|
|
isa0 = device_add_child(dev, "isa", 0, 0);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
lca_attach(device_t dev)
|
|
{
|
|
struct lca_softc* sc = LCA_SOFTC(dev);
|
|
|
|
lca_init();
|
|
chipset.intrdev = isa0;
|
|
|
|
set_iointr(alpha_dispatch_intr);
|
|
|
|
bus_generic_attach(dev);
|
|
return 0;
|
|
}
|
|
|
|
DRIVER_MODULE(lca, root, lca_driver, lca_devclass, 0, 0);
|
|
|