Merge KN20AA support from Andrew Gallatin.

Add support for device memory access.
Add support for ISA irqs.
This commit is contained in:
Doug Rabson 1998-07-22 08:32:17 +00:00
parent 31de2a7751
commit 53db2ca0b6
Notes: svn2git 2020-12-20 02:59:44 +00:00
svn path=/head/; revision=37837

View File

@ -23,7 +23,7 @@
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $Id: cia.c,v 1.1 1998/07/05 12:16:14 dfr Exp $
* $Id: cia.c,v 1.2 1998/07/12 16:17:53 dfr Exp $
*/
#include <sys/param.h>
@ -36,6 +36,7 @@
#include <alpha/pci/ciavar.h>
#include <machine/bwx.h>
#include <machine/intr.h>
#include <machine/cpuconf.h>
#define KV(pa) ALPHA_PHYS_TO_K0SEG(pa)
@ -56,19 +57,25 @@ struct cia_softc {
#define CIA_SOFTC(dev) (struct cia_softc*) device_get_softc(dev)
static alpha_chipset_inb_t cia_bwx_inb;
static alpha_chipset_inw_t cia_bwx_inw;
static alpha_chipset_inl_t cia_bwx_inl;
static alpha_chipset_outb_t cia_bwx_outb;
static alpha_chipset_outw_t cia_bwx_outw;
static alpha_chipset_outl_t cia_bwx_outl;
static alpha_chipset_maxdevs_t cia_bwx_maxdevs;
static alpha_chipset_cfgreadb_t cia_bwx_cfgreadb;
static alpha_chipset_cfgreadw_t cia_bwx_cfgreadw;
static alpha_chipset_cfgreadl_t cia_bwx_cfgreadl;
static alpha_chipset_cfgwriteb_t cia_bwx_cfgwriteb;
static alpha_chipset_cfgwritew_t cia_bwx_cfgwritew;
static alpha_chipset_cfgwritel_t cia_bwx_cfgwritel;
static alpha_chipset_inb_t cia_bwx_inb, cia_swiz_inb;
static alpha_chipset_inw_t cia_bwx_inw, cia_swiz_inw;
static alpha_chipset_inl_t cia_bwx_inl, cia_swiz_inl;
static alpha_chipset_outb_t cia_bwx_outb, cia_swiz_outb;
static alpha_chipset_outw_t cia_bwx_outw, cia_swiz_outw;
static alpha_chipset_outl_t cia_bwx_outl, cia_swiz_outl;
static alpha_chipset_readb_t cia_bwx_readb, cia_swiz_readb;
static alpha_chipset_readw_t cia_bwx_readw, cia_swiz_readw;
static alpha_chipset_readl_t cia_bwx_readl, cia_swiz_readl;
static alpha_chipset_writeb_t cia_bwx_writeb, cia_swiz_writeb;
static alpha_chipset_writew_t cia_bwx_writew, cia_swiz_writew;
static alpha_chipset_writel_t cia_bwx_writel, cia_swiz_writel;
static alpha_chipset_maxdevs_t cia_bwx_maxdevs, cia_swiz_maxdevs;
static alpha_chipset_cfgreadb_t cia_bwx_cfgreadb, cia_swiz_cfgreadb;
static alpha_chipset_cfgreadw_t cia_bwx_cfgreadw, cia_swiz_cfgreadw;
static alpha_chipset_cfgreadl_t cia_bwx_cfgreadl, cia_swiz_cfgreadl;
static alpha_chipset_cfgwriteb_t cia_bwx_cfgwriteb, cia_swiz_cfgwriteb;
static alpha_chipset_cfgwritew_t cia_bwx_cfgwritew, cia_swiz_cfgwritew;
static alpha_chipset_cfgwritel_t cia_bwx_cfgwritel, cia_swiz_cfgwritel;
static alpha_chipset_t cia_bwx_chipset = {
cia_bwx_inb,
@ -77,6 +84,12 @@ static alpha_chipset_t cia_bwx_chipset = {
cia_bwx_outb,
cia_bwx_outw,
cia_bwx_outl,
cia_bwx_readb,
cia_bwx_readw,
cia_bwx_readl,
cia_bwx_writeb,
cia_bwx_writew,
cia_bwx_writel,
cia_bwx_maxdevs,
cia_bwx_cfgreadb,
cia_bwx_cfgreadw,
@ -85,22 +98,46 @@ static alpha_chipset_t cia_bwx_chipset = {
cia_bwx_cfgwritew,
cia_bwx_cfgwritel,
};
static alpha_chipset_t cia_swiz_chipset = {
cia_swiz_inb,
cia_swiz_inw,
cia_swiz_inl,
cia_swiz_outb,
cia_swiz_outw,
cia_swiz_outl,
cia_swiz_readb,
cia_swiz_readw,
cia_swiz_readl,
cia_swiz_writeb,
cia_swiz_writew,
cia_swiz_writel,
cia_swiz_maxdevs,
cia_swiz_cfgreadb,
cia_swiz_cfgreadw,
cia_swiz_cfgreadl,
cia_swiz_cfgwriteb,
cia_swiz_cfgwritew,
cia_swiz_cfgwritel,
};
static u_int8_t
cia_bwx_inb(u_int32_t port)
{
alpha_mb();
return ldbu(KV(CIA_EV56_BWIO + port));
}
static u_int16_t
cia_bwx_inw(u_int32_t port)
{
alpha_mb();
return ldwu(KV(CIA_EV56_BWIO + port));
}
static u_int32_t
cia_bwx_inl(u_int32_t port)
{
alpha_mb();
return ldl(KV(CIA_EV56_BWIO + port));
}
@ -108,18 +145,63 @@ static void
cia_bwx_outb(u_int32_t port, u_int8_t data)
{
stb(KV(CIA_EV56_BWIO + port), data);
alpha_wmb();
}
static void
cia_bwx_outw(u_int32_t port, u_int16_t data)
{
stw(KV(CIA_EV56_BWIO + port), data);
alpha_wmb();
}
static void
cia_bwx_outl(u_int32_t port, u_int32_t data)
{
stl(KV(CIA_EV56_BWIO + port), data);
alpha_wmb();
}
static u_int8_t
cia_bwx_readb(u_int32_t pa)
{
alpha_mb();
return ldbu(KV(CIA_EV56_BWMEM + pa));
}
static u_int16_t
cia_bwx_readw(u_int32_t pa)
{
alpha_mb();
return ldwu(KV(CIA_EV56_BWMEM + pa));
}
static u_int32_t
cia_bwx_readl(u_int32_t pa)
{
alpha_mb();
return ldl(KV(CIA_EV56_BWMEM + pa));
}
static void
cia_bwx_writeb(u_int32_t pa, u_int8_t data)
{
stb(KV(CIA_EV56_BWMEM + pa), data);
alpha_wmb();
}
static void
cia_bwx_writew(u_int32_t pa, u_int16_t data)
{
stw(KV(CIA_EV56_BWMEM + pa), data);
alpha_wmb();
}
static void
cia_bwx_writel(u_int32_t pa, u_int32_t data)
{
stl(KV(CIA_EV56_BWMEM + pa), data);
alpha_wmb();
}
static int
@ -127,6 +209,11 @@ cia_bwx_maxdevs(u_int b)
{
return 12; /* XXX */
}
static int
cia_swiz_maxdevs(u_int b)
{
return 12; /* XXX */
}
#define CIA_BWX_CFGADDR(b, s, f, r) \
KV(((b) ? CIA_EV56_BWCONF1 : CIA_EV56_BWCONF0) \
@ -136,6 +223,7 @@ static u_int8_t
cia_bwx_cfgreadb(u_int b, u_int s, u_int f, u_int r)
{
vm_offset_t va = CIA_BWX_CFGADDR(b, s, f, r);
alpha_mb();
if (badaddr((caddr_t)va, 1)) return ~0;
return ldbu(va);
}
@ -144,6 +232,7 @@ static u_int16_t
cia_bwx_cfgreadw(u_int b, u_int s, u_int f, u_int r)
{
vm_offset_t va = CIA_BWX_CFGADDR(b, s, f, r);
alpha_mb();
if (badaddr((caddr_t)va, 2)) return ~0;
return ldwu(va);
}
@ -152,6 +241,7 @@ static u_int32_t
cia_bwx_cfgreadl(u_int b, u_int s, u_int f, u_int r)
{
vm_offset_t va = CIA_BWX_CFGADDR(b, s, f, r);
alpha_mb();
if (badaddr((caddr_t)va, 4)) return ~0;
return ldl(va);
}
@ -161,7 +251,8 @@ cia_bwx_cfgwriteb(u_int b, u_int s, u_int f, u_int r, u_int8_t data)
{
vm_offset_t va = CIA_BWX_CFGADDR(b, s, f, r);
if (badaddr((caddr_t)va, 1)) return;
return stb(va, data);
stb(va, data);
alpha_wmb();
}
static void
@ -169,7 +260,8 @@ cia_bwx_cfgwritew(u_int b, u_int s, u_int f, u_int r, u_int16_t data)
{
vm_offset_t va = CIA_BWX_CFGADDR(b, s, f, r);
if (badaddr((caddr_t)va, 2)) return;
return stw(va, data);
stw(va, data);
alpha_wmb();
}
static void
@ -177,9 +269,189 @@ cia_bwx_cfgwritel(u_int b, u_int s, u_int f, u_int r, u_int32_t data)
{
vm_offset_t va = CIA_BWX_CFGADDR(b, s, f, r);
if (badaddr((caddr_t)va, 4)) return;
return stl(va, data);
stl(va, data);
alpha_wmb();
}
#define SPARSE_READ(o) (*(u_int32_t*) (o))
#define SPARSE_WRITE(o, d) (*(u_int32_t*) (o) = (d))
#define SPARSE_BYTE_OFFSET(o) (((o) << 5) | (0 << 3))
#define SPARSE_WORD_OFFSET(o) (((o) << 5) | (1 << 3))
#define SPARSE_LONG_OFFSET(o) (((o) << 5) | (3 << 3))
#define SPARSE_BYTE_EXTRACT(o, d) ((d) >> (8*((o) & 3)))
#define SPARSE_WORD_EXTRACT(o, d) ((d) >> (8*((o) & 2)))
#define SPARSE_BYTE_INSERT(o, d) ((d) << (8*((o) & 3)))
#define SPARSE_WORD_INSERT(o, d) ((d) << (8*((o) & 2)))
#define SPARSE_READ_BYTE(base, o) \
SPARSE_BYTE_EXTRACT(o, SPARSE_READ(base + SPARSE_BYTE_OFFSET(o)))
#define SPARSE_READ_WORD(base, o) \
SPARSE_WORD_EXTRACT(o, SPARSE_READ(base + SPARSE_WORD_OFFSET(o)))
#define SPARSE_READ_LONG(base, o) \
SPARSE_READ(base + SPARSE_LONG_OFFSET(o))
#define SPARSE_WRITE_BYTE(base, o, d) \
SPARSE_WRITE(base + SPARSE_BYTE_OFFSET(o), SPARSE_BYTE_INSERT(o, d))
#define SPARSE_WRITE_WORD(base, o, d) \
SPARSE_WRITE(base + SPARSE_WORD_OFFSET(o), SPARSE_WORD_INSERT(o, d))
#define SPARSE_WRITE_LONG(base, o, d) \
SPARSE_WRITE(base + SPARSE_LONG_OFFSET(o), d)
static u_int8_t
cia_swiz_inb(u_int32_t port)
{
alpha_mb();
return SPARSE_READ_BYTE(KV(CIA_PCI_SIO1), port);
}
static u_int16_t
cia_swiz_inw(u_int32_t port)
{
alpha_mb();
return SPARSE_READ_WORD(KV(CIA_PCI_SIO1), port);
}
static u_int32_t
cia_swiz_inl(u_int32_t port)
{
alpha_mb();
return SPARSE_READ_LONG(KV(CIA_PCI_SIO1), port);
}
static void
cia_swiz_outb(u_int32_t port, u_int8_t data)
{
SPARSE_WRITE_BYTE(KV(CIA_PCI_SIO1), port, data);
alpha_wmb();
}
static void
cia_swiz_outw(u_int32_t port, u_int16_t data)
{
SPARSE_WRITE_WORD(KV(CIA_PCI_SIO1), port, data);
alpha_wmb();
}
static void
cia_swiz_outl(u_int32_t port, u_int32_t data)
{
SPARSE_WRITE_LONG(KV(CIA_PCI_SIO1), port, data);
alpha_wmb();
}
static u_int8_t
cia_swiz_readb(u_int32_t pa)
{
alpha_mb();
return SPARSE_READ_BYTE(KV(CIA_PCI_SMEM1), pa);
}
static u_int16_t
cia_swiz_readw(u_int32_t pa)
{
alpha_mb();
return SPARSE_READ_WORD(KV(CIA_PCI_SMEM1), pa);
}
static u_int32_t
cia_swiz_readl(u_int32_t pa)
{
alpha_mb();
return SPARSE_READ_LONG(KV(CIA_PCI_SMEM1), pa);
}
static void
cia_swiz_writeb(u_int32_t pa, u_int8_t data)
{
SPARSE_WRITE_BYTE(KV(CIA_PCI_SIO1), pa, data);
alpha_wmb();
}
static void
cia_swiz_writew(u_int32_t pa, u_int16_t data)
{
SPARSE_WRITE_WORD(KV(CIA_PCI_SIO1), pa, data);
alpha_wmb();
}
static void
cia_swiz_writel(u_int32_t pa, u_int32_t data)
{
SPARSE_WRITE_LONG(KV(CIA_PCI_SIO1), pa, data);
alpha_wmb();
}
#define CIA_SWIZ_CFGOFF(b, s, f, r) \
(((b) << 16) | ((s) << 11) | ((f) << 8) | (r))
static u_int8_t
cia_swiz_cfgreadb(u_int b, u_int s, u_int f, u_int r)
{
struct cia_softc* sc = CIA_SOFTC(cia0);
vm_offset_t off = CIA_SWIZ_CFGOFF(b, s, f, r);
alpha_mb();
if (badaddr((caddr_t)(sc->cfg0_base + SPARSE_BYTE_OFFSET(off)), 1)) return ~0;
return SPARSE_READ_BYTE(sc->cfg0_base, off);
}
static u_int16_t
cia_swiz_cfgreadw(u_int b, u_int s, u_int f, u_int r)
{
struct cia_softc* sc = CIA_SOFTC(cia0);
vm_offset_t off = CIA_SWIZ_CFGOFF(b, s, f, r);
alpha_mb();
if (badaddr((caddr_t)(sc->cfg0_base + SPARSE_WORD_OFFSET(off)), 2)) return ~0;
return SPARSE_READ_WORD(sc->cfg0_base, off);
}
static u_int32_t
cia_swiz_cfgreadl(u_int b, u_int s, u_int f, u_int r)
{
struct cia_softc* sc = CIA_SOFTC(cia0);
vm_offset_t off = CIA_SWIZ_CFGOFF(b, s, f, r);
alpha_mb();
if (badaddr((caddr_t)(sc->cfg0_base + SPARSE_LONG_OFFSET(off)), 4)) return ~0;
return SPARSE_READ_LONG(sc->cfg0_base, off);
}
static void
cia_swiz_cfgwriteb(u_int b, u_int s, u_int f, u_int r, u_int8_t data)
{
struct cia_softc* sc = CIA_SOFTC(cia0);
vm_offset_t off = CIA_SWIZ_CFGOFF(b, s, f, r);
if (badaddr((caddr_t)(sc->cfg0_base + SPARSE_BYTE_OFFSET(off)), 1)) return;
SPARSE_WRITE_BYTE(sc->cfg0_base, off, data);
alpha_wmb();
}
static void
cia_swiz_cfgwritew(u_int b, u_int s, u_int f, u_int r, u_int16_t data)
{
struct cia_softc* sc = CIA_SOFTC(cia0);
vm_offset_t off = CIA_SWIZ_CFGOFF(b, s, f, r);
if (badaddr((caddr_t)(sc->cfg0_base + SPARSE_WORD_OFFSET(off)), 2)) return;
SPARSE_WRITE_WORD(sc->cfg0_base, off, data);
alpha_wmb();
}
static void
cia_swiz_cfgwritel(u_int b, u_int s, u_int f, u_int r, u_int32_t data)
{
struct cia_softc* sc = CIA_SOFTC(cia0);
vm_offset_t off = CIA_SWIZ_CFGOFF(b, s, f, r);
if (badaddr((caddr_t)(sc->cfg0_base + SPARSE_LONG_OFFSET(off)), 4)) return;
SPARSE_WRITE_LONG(sc->cfg0_base, off, data);
alpha_wmb();
}
static int cia_probe(device_t dev);
static int cia_attach(device_t dev);
static void *cia_create_intr(device_t dev, device_t child, int irq, driver_intr_t *intr, void *arg);
@ -214,9 +486,9 @@ cia_init()
if (alpha_implver() != ALPHA_IMPLVER_EV5
|| alpha_amask(ALPHA_AMASK_BWX))
panic("cia_init: only supporting bwx for now");
chipset = cia_bwx_chipset;
chipset = cia_swiz_chipset;
else
chipset = cia_bwx_chipset;
}
static int
@ -225,7 +497,10 @@ cia_probe(device_t dev)
if (cia0)
return ENXIO;
cia0 = dev;
device_set_desc(dev, "21174 PCI adapter"); /* XXX */
device_set_desc(dev, "2117x PCI adapter"); /* XXX */
device_add_child(dev, "isa", 0, 0);
return 0;
}
@ -237,13 +512,22 @@ cia_attach(device_t dev)
cia_init();
chipset.bridge = dev;
sc->dmem_base = CIA_EV56_BWMEM;
sc->smem_base = CIA_PCI_SMEM1;
sc->io_base = CIA_EV56_BWIO;
sc->cfg0_base = CIA_EV56_BWCONF0;
sc->cfg1_base = CIA_EV56_BWCONF1;
if(alpha_amask(ALPHA_AMASK_BWX) == 0){
sc->dmem_base = CIA_EV56_BWMEM;
sc->smem_base = CIA_PCI_SMEM1;
sc->io_base = CIA_EV56_BWIO;
sc->cfg0_base = CIA_EV56_BWCONF0;
sc->cfg1_base = CIA_EV56_BWCONF1;
}else {
sc->dmem_base = CIA_PCI_DENSE;
sc->smem_base = CIA_PCI_SMEM1;
sc->io_base = CIA_PCI_SIO1;
sc->cfg0_base = KV(CIA_PCI_CONF);
sc->cfg1_base = NULL;
}
set_iointr(cia_intr);
bus_generic_attach(dev);
return 0;
}
@ -251,8 +535,7 @@ static void *
cia_create_intr(device_t dev, device_t child,
int irq, driver_intr_t *intr, void *arg)
{
int vector = 0x900 + (irq << 4);
return alpha_create_intr(vector, intr, arg);
return alpha_create_intr(irq, intr, arg);
}
static int
@ -261,8 +544,14 @@ cia_connect_intr(device_t dev, void* ih)
struct alpha_intr *i = ih;
int s = splhigh();
int error = alpha_connect_intr(i);
if (!error)
eb164_intr_enable((i->vector - 0x900) >> 4);
if (!error) {
if (i->vector > 0x900)
/* PCI interrupt */
platform.pci_intr_enable((i->vector - 0x900) >> 4);
else if (i->vector > 0x800)
/* ISA interrupt chained to PCI interrupt 4 */
platform.pci_intr_enable(4);/* XXX */
}
splx(s);
return error;
}