diff options
| author | imp <imp@cvs.openbsd.org> | 1996-09-19 19:44:58 +0000 |
|---|---|---|
| committer | imp <imp@cvs.openbsd.org> | 1996-09-19 19:44:58 +0000 |
| commit | 82c73fd04a8b3ddb96df101cbef72d163be710f6 (patch) | |
| tree | fd7461b0264b2f439b95d520abe38609daa3cced | |
| parent | d7655a28f9b5219fbaede9252de78d6968f16700 (diff) | |
KLUDGE: make the bounce buffers work on rPC44 as well as the Tyne.
| -rw-r--r-- | sys/arch/arc/dti/btl.c | 21 |
1 files changed, 17 insertions, 4 deletions
diff --git a/sys/arch/arc/dti/btl.c b/sys/arch/arc/dti/btl.c index 3c60cbb18ba..888f8ab1ced 100644 --- a/sys/arch/arc/dti/btl.c +++ b/sys/arch/arc/dti/btl.c @@ -52,6 +52,7 @@ #include <sys/systm.h> #include <sys/kernel.h> #include <sys/errno.h> +#include <sys/malloc.h> #include <sys/ioctl.h> #include <sys/device.h> #include <sys/buf.h> @@ -68,6 +69,7 @@ #include <dev/isa/isavar.h> #include <arc/dti/btlreg.h> +#include <arc/arc/arctype.h> /* XXX for cpu types */ #ifndef DDB #define Debugger() panic("should call debugger here (bt742a.c)") @@ -98,8 +100,10 @@ struct bt_mbx { struct bt_mbx_in *tmbi; /* Target Mail Box in */ }; +extern int cputype; /* XXX */ + #define KVTOPHYS(x) (((int)(x) & 0x7fffff) | 0x800000) -#define PHYSTOKV(x) (((int)(x) & 0x7fffff) | TYNE_V_BOUNCE) +#define PHYSTOKV(x) (((int)(x) & 0x7fffff) | (cputype == DESKSTATION_TYNE ? TYNE_V_BOUNCE : 0)) #include "aha.h" #include "btl.h" @@ -368,6 +372,8 @@ btattach(parent, self, aux) struct bt_ccb *ccb; struct bt_buf *buf; u_int bouncearea; + u_int bouncebase; + u_int bouncesize; if (bt_find(ia, sc) != 0) panic("btattach: bt_find of %s failed", self->dv_xname); @@ -376,8 +382,15 @@ btattach(parent, self, aux) /* * create mbox area */ - sc->sc_mbx = (struct bt_mbx *)TYNE_V_BOUNCE; - bouncearea = TYNE_V_BOUNCE + sizeof(struct bt_mbx); + if (cputype == DESKSTATION_TYNE) { + bouncebase = TYNE_V_BOUNCE; + bouncesize = TYNE_S_BOUNCE; + } else { + bouncesize = TYNE_S_BOUNCE; /* Good enough? XXX */ + bouncebase = (u_int) malloc( bouncesize, M_DEVBUF, M_NOWAIT); + } + bouncearea = bouncebase + sizeof(struct bt_mbx); + sc->sc_mbx = (struct bt_mbx *)bouncebase; bt_inquire_setup_information(sc); bt_init(sc); @@ -398,7 +411,7 @@ btattach(parent, self, aux) /* * fill up with bufs's */ - while ((bouncearea + sizeof(struct bt_buf)) < (TYNE_V_BOUNCE + TYNE_S_BOUNCE)) { + while ((bouncearea + sizeof(struct bt_buf)) < bouncebase + bouncesize) { buf = (struct bt_buf *)bouncearea; bouncearea += sizeof(struct bt_buf); TAILQ_INSERT_HEAD(&sc->sc_free_buf, buf, chain); |