ref: 19a883ce7a8b0d1f57a1df68947af2bfa7ea5576
parent: a4688b03228dfdebcde34570b2a7b5c79db31c79
author: cinap_lenrek <cinap_lenrek@felloff.net>
date: Wed Jul 17 06:24:50 EDT 2019
usbehci: introduce dmaflush() function to handle portable cache invalidation for device drivers
--- a/sys/src/9/kw/usbehci.h
+++ b/sys/src/9/kw/usbehci.h
@@ -175,7 +175,6 @@
void* (*tdalloc)(ulong,int,ulong);
void* (*dmaalloc)(ulong);
void (*dmafree)(void*);
- void (*dmaflush)(int,void*,ulong len);
int nframes; /* 1024, 512, or 256 frames in the list */
ulong* frames; /* periodic frame list (hw) */
@@ -245,3 +244,5 @@
void ehcilinkage(Hci *hp);
void ehcimeminit(Ctlr *ctlr);
void ehcirun(Ctlr *ctlr, int on);
+
+#define dmaflush(clean, addr, len)
--- a/sys/src/9/omap/archomap.c
+++ b/sys/src/9/omap/archomap.c
@@ -18,7 +18,6 @@
#include "../port/etherif.h"
#include "../port/flashif.h"
#include "../port/usb.h"
-#include "../port/portusbehci.h"
#include "usbehci.h"
#define FREQSEL(x) ((x) << 4)
--- a/sys/src/9/omap/usbehci.h
+++ b/sys/src/9/omap/usbehci.h
@@ -10,6 +10,7 @@
typedef struct Ctlr Ctlr;
typedef struct Eopio Eopio;
+typedef struct Ecapio Ecapio;
typedef struct Isoio Isoio;
typedef struct Poll Poll;
typedef struct Qh Qh;
@@ -22,6 +23,116 @@
#pragma incomplete Qh;
#pragma incomplete Qtree;
+enum
+{+ /* Ecapio->parms reg. */
+ Cnports = 0xF, /* nport bits */
+ Cdbgportshift = 20, /* debug port */
+ Cdbgportmask = 0xF,
+
+ /* Ecapio->capparms bits */
+ C64 = 1<<0, /* 64-bits */
+ Cpfl = 1<<1, /* program'ble frame list: can be <1024 */
+ Casp = 1<<2, /* asynch. sched. park */
+ Ceecpshift = 8, /* extended capabilities ptr. */
+ Ceecpmask = (1<<8) - 1,
+
+ Clegacy = 1, /* legacy support cap. id */
+ CLbiossem = 2, /* legacy cap. bios sem. */
+ CLossem = 3, /* legacy cap. os sem */
+ CLcontrol = 4, /* legacy support control & status */
+
+ /* typed links */
+ Lterm = 1,
+ Litd = 0<<1,
+ Lqh = 1<<1,
+ Lsitd = 2<<1,
+ Lfstn = 3<<1, /* we don't use these */
+
+ /* Cmd reg. */
+ Cstop = 0x00000, /* stop running */
+ Crun = 0x00001, /* start operation */
+ Chcreset = 0x00002, /* host controller reset */
+ Cflsmask = 0x0000C, /* frame list size bits */
+ Cfls1024 = 0x00000, /* frame list size 1024 */
+ Cfls512 = 0x00004, /* frame list size 512 frames */
+ Cfls256 = 0x00008, /* frame list size 256 frames */
+ Cpse = 0x00010, /* periodic sched. enable */
+ Case = 0x00020, /* async sched. enable */
+ Ciasync = 0x00040, /* interrupt on async advance doorbell */
+ /* interrupt threshold ctl. in µframes (1-32 in powers of 2) */
+ Citcshift = 16,
+ Citcmask = 0xff << Citcshift,
+
+ /* Sts reg. */
+ Sasyncss = 0x08000, /* aync schedule status */
+ Speriodss = 0x04000, /* periodic schedule status */
+ Srecl = 0x02000, /* reclamnation (empty async sched.) */
+ Shalted = 0x01000, /* h.c. is halted */
+ Sasync = 0x00020, /* interrupt on async advance */
+ Sherr = 0x00010, /* host system error */
+ Sfrroll = 0x00008, /* frame list roll over */
+ Sportchg = 0x00004, /* port change detect */
+ Serrintr = 0x00002, /* error interrupt */
+ Sintr = 0x00001, /* interrupt */
+ Sintrs = 0x0003F, /* interrupts status */
+
+ /* Intr reg. */
+ Iusb = 0x01, /* intr. on usb */
+ Ierr = 0x02, /* intr. on usb error */
+ Iportchg = 0x04, /* intr. on port change */
+ Ifrroll = 0x08, /* intr. on frlist roll over */
+ Ihcerr = 0x10, /* intr. on host error */
+ Iasync = 0x20, /* intr. on async advance enable */
+ Iall = 0x3F, /* all interrupts */
+
+ /* Config reg. */
+ Callmine = 1, /* route all ports to us */
+
+ /* Portsc reg. */
+ Pspresent = 0x00000001, /* device present */
+ Psstatuschg = 0x00000002, /* Pspresent changed */
+ Psenable = 0x00000004, /* device enabled */
+ Pschange = 0x00000008, /* Psenable changed */
+ Psresume = 0x00000040, /* resume detected */
+ Pssuspend = 0x00000080, /* port suspended */
+ Psreset = 0x00000100, /* port reset */
+ Pspower = 0x00001000, /* port power on */
+ Psowner = 0x00002000, /* port owned by companion */
+ Pslinemask = 0x00000C00, /* line status bits */
+ Pslow = 0x00000400, /* low speed device */
+
+ /* Debug port csw reg. */
+ Cowner = 0x40000000, /* port owned by ehci */
+ Cenable = 0x10000000, /* debug port enabled */
+ Cdone = 0x00010000, /* request is done */
+ Cbusy = 0x00000400, /* port in use by a driver */
+ Cerrmask= 0x00000380, /* error code bits */
+ Chwerr = 0x00000100, /* hardware error */
+ Cterr = 0x00000080, /* transaction error */
+ Cfailed = 0x00000040, /* transaction did fail */
+ Cgo = 0x00000020, /* execute the transaction */
+ Cwrite = 0x00000010, /* request is a write */
+ Clen = 0x0000000F, /* data len */
+
+ /* Debug port pid reg. */
+ Prpidshift = 16, /* received pid */
+ Prpidmask = 0xFF,
+ Pspidshift = 8, /* sent pid */
+ Pspidmask = 0xFF,
+ Ptokshift = 0, /* token pid */
+ Ptokmask = 0xFF,
+
+ Ptoggle = 0x00008800, /* to update toggles */
+ Ptogglemask = 0x0000FF00,
+
+ /* Debug port addr reg. */
+ Adevshift = 8, /* device address */
+ Adevmask = 0x7F,
+ Aepshift = 0, /* endpoint number */
+ Aepmask = 0xF,
+};
+
struct Poll
{Lock;
@@ -39,10 +150,9 @@
Ecapio* capio; /* Capability i/o regs */
Eopio* opio; /* Operational i/o regs */
- void* (*tdalloc)(ulong,int,ulong);
- void* (*dmaalloc)(ulong);
+ void* (*tdalloc)(usize,int,usize);
+ void* (*dmaalloc)(usize);
void (*dmafree)(void*);
- void (*dmaflush)(int,void*,ulong len);
int nframes; /* 1024, 512, or 256 frames in the list */
ulong* frames; /* periodic frame list (hw) */
@@ -82,6 +192,17 @@
ulong insn[6]; /* implementation-specific */
};
+/*
+ * Capability registers (hw)
+ */
+struct Ecapio
+{+ ulong cap; /* 00 controller capability register */
+ ulong parms; /* 04 structural parameters register */
+ ulong capparms; /* 08 capability parameters */
+ ulong portroute; /* 0c not on the CS5536 */
+};
+
typedef struct Uhh Uhh;
struct Uhh {ulong revision; /* ro */
@@ -107,3 +228,5 @@
void ehcilinkage(Hci *hp);
void ehcimeminit(Ctlr *ctlr);
void ehcirun(Ctlr *ctlr, int on);
+
+#define dmaflush(clean, addr, len)
--- a/sys/src/9/omap/usbehciomap.c
+++ b/sys/src/9/omap/usbehciomap.c
@@ -53,7 +53,7 @@
}
/* requesting more interrupts per µframe may miss interrupts */
- opio->cmd |= Citc8; /* 1 intr. per ms */
+ opio->cmd |= 0x10000; /* 1 intr. per ms */
coherence();
switch(opio->cmd & Cflsmask){case Cfls1024:
@@ -180,7 +180,7 @@
ctlr->tdalloc = ucallocalign;
ctlr->dmaalloc = ucalloc;
- cltr->dmafree = ucfree;
+ ctlr->dmafree = ucfree;
ehcireset(ctlr);
ehcimeminit(ctlr);
--- a/sys/src/9/pc/fns.h
+++ b/sys/src/9/pc/fns.h
@@ -21,6 +21,7 @@
void (*cycles)(uvlong*);
void delay(int);
void* dmabva(int);
+#define dmaflush(clean, addr, len)
int dmacount(int);
int dmadone(int);
void dmaend(int);
--- a/sys/src/9/pc/usbehci.h
+++ b/sys/src/9/pc/usbehci.h
@@ -178,7 +178,6 @@
void* (*tdalloc)(ulong,int,ulong);
void* (*dmaalloc)(ulong);
void (*dmafree)(void*);
- void (*dmaflush)(int,void*,ulong len);
int nframes; /* 1024, 512, or 256 frames in the list */
ulong* frames; /* periodic frame list (hw) */
--- a/sys/src/9/pc64/fns.h
+++ b/sys/src/9/pc64/fns.h
@@ -21,6 +21,7 @@
void (*cycles)(uvlong*);
void delay(int);
void* dmabva(int);
+#define dmaflush(clean, addr, len)
int dmacount(int);
int dmadone(int);
void dmaend(int);
--- a/sys/src/9/port/portusbehci.h
+++ /dev/null
@@ -1,144 +1,0 @@
-/*
- * ECHI portable hardware definitions
- */
-
-typedef struct Ecapio Ecapio;
-typedef struct Edbgio Edbgio;
-
-#pragma incomplete Ecapio;
-#pragma incomplete Edbgio;
-
-/*
- * EHCI interface registers and bits
- */
-enum
-{- /* Ecapio->parms reg. */
- Cnports = 0xF, /* nport bits */
- Cdbgportshift = 20, /* debug port */
- Cdbgportmask = 0xF,
-
- /* Ecapio->capparms bits */
- C64 = 1<<0, /* 64-bits */
- Cpfl = 1<<1, /* program'ble frame list: can be <1024 */
- Casp = 1<<2, /* asynch. sched. park */
- Ceecpshift = 8, /* extended capabilities ptr. */
- Ceecpmask = (1<<8) - 1,
-
- Clegacy = 1, /* legacy support cap. id */
- CLbiossem = 2, /* legacy cap. bios sem. */
- CLossem = 3, /* legacy cap. os sem */
- CLcontrol = 4, /* legacy support control & status */
-
- /* typed links */
- Lterm = 1,
- Litd = 0<<1,
- Lqh = 1<<1,
- Lsitd = 2<<1,
- Lfstn = 3<<1, /* we don't use these */
-
- /* Cmd reg. */
- Cstop = 0x00000, /* stop running */
- Crun = 0x00001, /* start operation */
- Chcreset = 0x00002, /* host controller reset */
- Cflsmask = 0x0000C, /* frame list size bits */
- Cfls1024 = 0x00000, /* frame list size 1024 */
- Cfls512 = 0x00004, /* frame list size 512 frames */
- Cfls256 = 0x00008, /* frame list size 256 frames */
- Cpse = 0x00010, /* periodic sched. enable */
- Case = 0x00020, /* async sched. enable */
- Ciasync = 0x00040, /* interrupt on async advance doorbell */
- /* interrupt threshold ctl. in µframes (1-32 in powers of 2) */
- Citcshift = 16,
- Citcmask = 0xff << Citcshift,
-
- /* Sts reg. */
- Sasyncss = 0x08000, /* aync schedule status */
- Speriodss = 0x04000, /* periodic schedule status */
- Srecl = 0x02000, /* reclamnation (empty async sched.) */
- Shalted = 0x01000, /* h.c. is halted */
- Sasync = 0x00020, /* interrupt on async advance */
- Sherr = 0x00010, /* host system error */
- Sfrroll = 0x00008, /* frame list roll over */
- Sportchg = 0x00004, /* port change detect */
- Serrintr = 0x00002, /* error interrupt */
- Sintr = 0x00001, /* interrupt */
- Sintrs = 0x0003F, /* interrupts status */
-
- /* Intr reg. */
- Iusb = 0x01, /* intr. on usb */
- Ierr = 0x02, /* intr. on usb error */
- Iportchg = 0x04, /* intr. on port change */
- Ifrroll = 0x08, /* intr. on frlist roll over */
- Ihcerr = 0x10, /* intr. on host error */
- Iasync = 0x20, /* intr. on async advance enable */
- Iall = 0x3F, /* all interrupts */
-
- /* Config reg. */
- Callmine = 1, /* route all ports to us */
-
- /* Portsc reg. */
- Pspresent = 0x00000001, /* device present */
- Psstatuschg = 0x00000002, /* Pspresent changed */
- Psenable = 0x00000004, /* device enabled */
- Pschange = 0x00000008, /* Psenable changed */
- Psresume = 0x00000040, /* resume detected */
- Pssuspend = 0x00000080, /* port suspended */
- Psreset = 0x00000100, /* port reset */
- Pspower = 0x00001000, /* port power on */
- Psowner = 0x00002000, /* port owned by companion */
- Pslinemask = 0x00000C00, /* line status bits */
- Pslow = 0x00000400, /* low speed device */
-
- /* Debug port csw reg. */
- Cowner = 0x40000000, /* port owned by ehci */
- Cenable = 0x10000000, /* debug port enabled */
- Cdone = 0x00010000, /* request is done */
- Cbusy = 0x00000400, /* port in use by a driver */
- Cerrmask= 0x00000380, /* error code bits */
- Chwerr = 0x00000100, /* hardware error */
- Cterr = 0x00000080, /* transaction error */
- Cfailed = 0x00000040, /* transaction did fail */
- Cgo = 0x00000020, /* execute the transaction */
- Cwrite = 0x00000010, /* request is a write */
- Clen = 0x0000000F, /* data len */
-
- /* Debug port pid reg. */
- Prpidshift = 16, /* received pid */
- Prpidmask = 0xFF,
- Pspidshift = 8, /* sent pid */
- Pspidmask = 0xFF,
- Ptokshift = 0, /* token pid */
- Ptokmask = 0xFF,
-
- Ptoggle = 0x00008800, /* to update toggles */
- Ptogglemask = 0x0000FF00,
-
- /* Debug port addr reg. */
- Adevshift = 8, /* device address */
- Adevmask = 0x7F,
- Aepshift = 0, /* endpoint number */
- Aepmask = 0xF,
-};
-
-/*
- * Capability registers (hw)
- */
-struct Ecapio
-{- ulong cap; /* 00 controller capability register */
- ulong parms; /* 04 structural parameters register */
- ulong capparms; /* 08 capability parameters */
- ulong portroute; /* 0c not on the CS5536 */
-};
-
-/*
- * Debug port registers (hw)
- */
-struct Edbgio
-{- ulong csw; /* control and status */
- ulong pid; /* USB pid */
- uchar data[8]; /* data buffer */
- ulong addr; /* device and endpoint addresses */
-};
--- a/sys/src/9/port/usbehci.c
+++ b/sys/src/9/port/usbehci.c
@@ -1256,8 +1256,7 @@
*/
size = td->ndata = td->mdata;
td->posi = td->posp = 0;
- if(ctlr->dmaflush != nil)
- (*ctlr->dmaflush)(1, td->data, size);
+ dmaflush(1, td->data, size);
pa = PADDR(td->data);
pg = pa & ~0xFFF;
for(p = 0; p < nelem(td->buffer); p++)
@@ -1290,8 +1289,7 @@
static void
sitdinit(Ctlr *ctlr, Isoio *iso, Sitd *td)
{- if(ctlr->dmaflush != nil)
- (*ctlr->dmaflush)(1, td->data, td->mdata);
+ dmaflush(1, td->data, td->mdata);
td->ndata = td->mdata & Stdlenmask;
td->buffer[0] = PADDR(td->data);
td->buffer[1] = (td->buffer[0] & ~0xFFF) + 0x1000;
@@ -1905,8 +1903,7 @@
dp = tdu->data + tdu->posi * iso->maxsize + tdu->posp;
if(nr > 0){iunlock(ctlr);
- if(ctlr->dmaflush != nil)
- (*ctlr->dmaflush)(0, dp, nr);
+ dmaflush(0, dp, nr);
memmove(b+tot, dp, nr);
ilock(ctlr);
if(iso->tdu != tdu || dp != tdu->data + tdu->posi * iso->maxsize + tdu->posp)
@@ -1947,8 +1944,7 @@
nr = count - tot;
if(nr > 0) {iunlock(ctlr); /* We could page fault here */
- if(ctlr->dmaflush != nil)
- (*ctlr->dmaflush)(0, stdu->data, stdu->mdata);
+ dmaflush(0, stdu->data, stdu->mdata);
memmove(b+tot, stdu->data, nr);
ilock(ctlr);
if(iso->stdu != stdu)
@@ -2192,8 +2188,9 @@
}
if(a != nil && count > 0)
memmove(td->data, a, count);
- if(ctlr->dmaflush != nil && td->buff != nil)
- (*ctlr->dmaflush)(1, td->data, count);
+ if(td->buff != nil){+ dmaflush(1, td->data, count);
+ }
pa = PADDR(td->data);
for(i = 0; i < nelem(td->buffer); i++){td->buffer[i] = pa;
@@ -2479,8 +2476,9 @@
if((tot + n) > count)
n = count - tot;
if(c != nil && (td->csw & Tdtok) == Tdtokin){- if(ctlr->dmaflush != nil && td->buff != nil)
- (*ctlr->dmaflush)(0, td->data, n);
+ if(td->buff != nil){+ dmaflush(0, td->data, n);
+ }
memmove(c, td->data, n);
c += n;
}
--- a/sys/src/9/teg2/archtegra.c
+++ b/sys/src/9/teg2/archtegra.c
@@ -14,9 +14,6 @@
#include "../port/netif.h"
#include "../port/etherif.h"
#include "../port/flashif.h"
-#include "../port/usb.h"
-#include "../port/portusbehci.h"
-#include "usbehci.h"
enum {/* hardware limits imposed by register contents or layouts */
--- a/sys/src/9/teg2/usbehci.h
+++ /dev/null
@@ -1,104 +1,0 @@
-/* override default macros from ../port/usb.h */
-#undef dprint
-#undef ddprint
-#undef deprint
-#undef ddeprint
-#define dprint if(ehcidebug)print
-#define ddprint if(ehcidebug>1)print
-#define deprint if(ehcidebug || ep->debug)print
-#define ddeprint if(ehcidebug>1 || ep->debug>1)print
-
-typedef struct Ctlr Ctlr;
-typedef struct Eopio Eopio;
-typedef struct Isoio Isoio;
-typedef struct Poll Poll;
-typedef struct Qh Qh;
-typedef struct Qtree Qtree;
-
-#pragma incomplete Ctlr;
-#pragma incomplete Eopio;
-#pragma incomplete Isoio;
-#pragma incomplete Poll;
-#pragma incomplete Qh;
-#pragma incomplete Qtree;
-
-struct Poll
-{- Lock;
- Rendez;
- int must;
- int does;
-};
-
-struct Ctlr
-{- Rendez; /* for waiting to async advance doorbell */
- Lock; /* for ilock. qh lists and basic ctlr I/O */
- QLock portlck; /* for port resets/enable... (and doorbell) */
- int active; /* in use or not */
- Ecapio* capio; /* Capability i/o regs */
- Eopio* opio; /* Operational i/o regs */
-
- int nframes; /* 1024, 512, or 256 frames in the list */
- ulong* frames; /* periodic frame list (hw) */
- Qh* qhs; /* async Qh circular list for bulk/ctl */
- Qtree* tree; /* tree of Qhs for the periodic list */
- int ntree; /* number of dummy qhs in tree */
- Qh* intrqhs; /* list of (not dummy) qhs in tree */
- Isoio* iso; /* list of active Iso I/O */
- ulong load;
- ulong isoload;
- int nintr; /* number of interrupts attended */
- int ntdintr; /* number of intrs. with something to do */
- int nqhintr; /* number of async td intrs. */
- int nisointr; /* number of periodic td intrs. */
- int nreqs;
- Poll poll;
-};
-
-/*
- * Operational registers (hw)
- */
-struct Eopio
-{- ulong cmd; /* 00 command */
- ulong sts; /* 04 status */
- ulong intr; /* 08 interrupt enable */
- ulong frno; /* 0c frame index */
- ulong seg; /* 10 bits 63:32 of EHCI datastructs (unused) */
- ulong frbase; /* 14 frame list base addr, 4096-byte boundary */
- ulong link; /* 18 link for async list */
- uchar d2c[0x40-0x1c]; /* 1c dummy */
- ulong config; /* 40 1: all ports default-routed to this HC */
- ulong portsc[3]; /* 44 Port status and control, one per port */
-
- /* defined for omap35 ehci at least */
- uchar _pad0[0x80 - 0x50];
- ulong insn[6]; /* implementation-specific */
-};
-
-typedef struct Uhh Uhh;
-struct Uhh {- ulong revision; /* ro */
- uchar _pad0[0x10-0x4];
- ulong sysconfig;
- ulong sysstatus; /* ro */
-
- uchar _pad1[0x40-0x18];
- ulong hostconfig;
- ulong debug_csr;
-};
-
-enum {- /* hostconfig bits */
- P1ulpi_bypass = 1<<0, /* utmi if set; else ulpi */
-};
-
-extern Ecapio *ehcidebugcapio;
-extern int ehcidebugport;
-
-extern int ehcidebug;
-
-void ehcilinkage(Hci *hp);
-void ehcimeminit(Ctlr *ctlr);
-void ehcirun(Ctlr *ctlr, int on);
--- a/sys/src/9/zynq/fns.h
+++ b/sys/src/9/zynq/fns.h
@@ -68,6 +68,7 @@
void invaldln(void *);
void cleandln(void *);
void clinvdln(void *);
+void dmaflush(int, void*, ulong);
void* ucalloc(ulong);
void clean2pa(uintptr, uintptr);
void inval2pa(uintptr, uintptr);
--- a/sys/src/9/zynq/main.c
+++ b/sys/src/9/zynq/main.c
@@ -133,6 +133,25 @@
l2[0x770/4] = pa;
}
+void
+dmaflush(int clean, void *data, ulong len)
+{+ uintptr va, pa;
+
+ va = (uintptr)data & ~31;
+ pa = PADDR(va);
+ len = ROUND(len, 32);
+ if(clean){+ /* flush cache before write */
+ cleandse((uchar*)va, (uchar*)va+len);
+ clean2pa(pa, pa+len);
+ } else {+ /* invalidate cache before read */
+ invaldse((uchar*)va, (uchar*)va+len);
+ inval2pa(pa, pa+len);
+ }
+}
+
static void
options(void)
{--- a/sys/src/9/zynq/usbehci.h
+++ b/sys/src/9/zynq/usbehci.h
@@ -130,7 +130,6 @@
void* (*tdalloc)(ulong,int,ulong);
void* (*dmaalloc)(ulong);
void (*dmafree)(void*);
- void (*dmaflush)(int,void*,ulong len);
int nframes; /* 1024, 512, or 256 frames in the list */
ulong* frames; /* periodic frame list (hw) */
--- a/sys/src/9/zynq/usbehcizynq.c
+++ b/sys/src/9/zynq/usbehcizynq.c
@@ -61,10 +61,6 @@
iunlock(ctlr);
}
-enum {- Cls = 64,
-};
-
/* descriptors need to be allocated in uncached memory */
static void*
tdalloc(ulong size, int, ulong)
@@ -75,7 +71,7 @@
static void*
dmaalloc(ulong len)
{- return mallocalign(ROUND(len, Cls), Cls, 0, 0);
+ return mallocalign(ROUND(len, BLOCKALIGN), BLOCKALIGN, 0, 0);
}
static void
dmafree(void *data)
@@ -83,25 +79,6 @@
free(data);
}
-static void
-dmaflush(int clean, void *data, ulong len)
-{- uintptr va, pa;
-
- va = (uintptr)data & ~(Cls-1);
- pa = PADDR(va);
- len = ROUND(len, Cls);
- if(clean){- /* flush cache before write */
- cleandse((uchar*)va, (uchar*)va+len);
- clean2pa(pa, pa+len);
- } else {- /* invalidate cache before read */
- invaldse((uchar*)va, (uchar*)va+len);
- inval2pa(pa, pa+len);
- }
-}
-
static int (*ehciportstatus)(Hci*,int);
static int
@@ -152,7 +129,6 @@
ctlr->tdalloc = tdalloc;
ctlr->dmaalloc = dmaalloc;
ctlr->dmafree = dmafree;
- ctlr->dmaflush = dmaflush;
ehcireset(ctlr);
ctlr->r[USBMODE] |= USBHOST;