| legacy.c (61995) | legacy.c (65557) |
|---|---|
| 1/* 2 * Copyright 1998 Massachusetts Institute of Technology 3 * 4 * Permission to use, copy, modify, and distribute this software and 5 * its documentation for any purpose and without fee is hereby 6 * granted, provided that both the above copyright notice and this 7 * permission notice appear in all copies, that both the above 8 * copyright notice and this permission notice appear in all --- 12 unchanged lines hidden (view full) --- 21 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 22 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF 23 * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND 24 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 25 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT 26 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27 * SUCH DAMAGE. 28 * | 1/* 2 * Copyright 1998 Massachusetts Institute of Technology 3 * 4 * Permission to use, copy, modify, and distribute this software and 5 * its documentation for any purpose and without fee is hereby 6 * granted, provided that both the above copyright notice and this 7 * permission notice appear in all copies, that both the above 8 * copyright notice and this permission notice appear in all --- 12 unchanged lines hidden (view full) --- 21 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 22 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF 23 * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND 24 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 25 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT 26 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27 * SUCH DAMAGE. 28 * |
| 29 * $FreeBSD: head/sys/i386/i386/legacy.c 61995 2000-06-23 08:18:53Z msmith $ | 29 * $FreeBSD: head/sys/i386/i386/legacy.c 65557 2000-09-07 01:33:02Z jasone $ |
| 30 */ 31 32/* 33 * This code implements a `root nexus' for Intel Architecture 34 * machines. The function of the root nexus is to serve as an 35 * attachment point for both processors and buses, and to manage 36 * resources which are common to all of them. In particular, 37 * this code implements the core resource managers for interrupt --- 25 unchanged lines hidden (view full) --- 63#endif 64 65#include <isa/isavar.h> 66#ifdef PC98 67#include <pc98/pc98/pc98.h> 68#else 69#include <i386/isa/isa.h> 70#endif | 30 */ 31 32/* 33 * This code implements a `root nexus' for Intel Architecture 34 * machines. The function of the root nexus is to serve as an 35 * attachment point for both processors and buses, and to manage 36 * resources which are common to all of them. In particular, 37 * this code implements the core resource managers for interrupt --- 25 unchanged lines hidden (view full) --- 63#endif 64 65#include <isa/isavar.h> 66#ifdef PC98 67#include <pc98/pc98/pc98.h> 68#else 69#include <i386/isa/isa.h> 70#endif |
| 71#include <sys/proc.h> 72#include <i386/isa/icu.h> |
|
| 71#include <i386/isa/intr_machdep.h> | 73#include <i386/isa/intr_machdep.h> |
| 74#include <sys/rtprio.h> |
|
| 72 73static struct rman irq_rman, drq_rman, port_rman, mem_rman; 74 75static int nexus_probe(device_t); 76static int nexus_attach(device_t); 77static int nexus_print_child(device_t, device_t); 78static device_t nexus_add_child(device_t bus, int order, const char *name, 79 int unit); --- 312 unchanged lines hidden (view full) --- 392 * (which really doesn't belong in kern/anything.c). Eventually, all of 393 * the code in kern_intr.c and machdep_intr.c should get moved here, since 394 * this is going to be the official interface. 395 */ 396static int 397nexus_setup_intr(device_t bus, device_t child, struct resource *irq, 398 int flags, void (*ihand)(void *), void *arg, void **cookiep) 399{ | 75 76static struct rman irq_rman, drq_rman, port_rman, mem_rman; 77 78static int nexus_probe(device_t); 79static int nexus_attach(device_t); 80static int nexus_print_child(device_t, device_t); 81static device_t nexus_add_child(device_t bus, int order, const char *name, 82 int unit); --- 312 unchanged lines hidden (view full) --- 395 * (which really doesn't belong in kern/anything.c). Eventually, all of 396 * the code in kern_intr.c and machdep_intr.c should get moved here, since 397 * this is going to be the official interface. 398 */ 399static int 400nexus_setup_intr(device_t bus, device_t child, struct resource *irq, 401 int flags, void (*ihand)(void *), void *arg, void **cookiep) 402{ |
| 400 intrmask_t *mask; | |
| 401 driver_t *driver; | 403 driver_t *driver; |
| 402 int error, icflags; | 404 int error, icflags; 405 int pri; /* interrupt thread priority */ |
| 403 404 /* somebody tried to setup an irq that failed to allocate! */ 405 if (irq == NULL) 406 panic("nexus_setup_intr: NULL irq resource!"); 407 408 *cookiep = 0; 409 if (irq->r_flags & RF_SHAREABLE) 410 icflags = 0; 411 else 412 icflags = INTR_EXCL; 413 414 driver = device_get_driver(child); 415 switch (flags) { | 406 407 /* somebody tried to setup an irq that failed to allocate! */ 408 if (irq == NULL) 409 panic("nexus_setup_intr: NULL irq resource!"); 410 411 *cookiep = 0; 412 if (irq->r_flags & RF_SHAREABLE) 413 icflags = 0; 414 else 415 icflags = INTR_EXCL; 416 417 driver = device_get_driver(child); 418 switch (flags) { |
| 416 case INTR_TYPE_TTY: 417 mask = &tty_imask; | 419 case INTR_TYPE_TTY: /* keyboard or parallel port */ 420 pri = PI_TTYLOW; |
| 418 break; | 421 break; |
| 419 case (INTR_TYPE_TTY | INTR_TYPE_FAST): 420 mask = &tty_imask; | 422 case (INTR_TYPE_TTY | INTR_FAST): /* sio */ 423 pri = PI_TTYHIGH; |
| 421 icflags |= INTR_FAST; 422 break; 423 case INTR_TYPE_BIO: | 424 icflags |= INTR_FAST; 425 break; 426 case INTR_TYPE_BIO: |
| 424 mask = &bio_imask; | 427 /* 428 * XXX We need to refine this. BSD/OS distinguishes 429 * between tape and disk priorities. 430 */ 431 pri = PI_DISK; |
| 425 break; 426 case INTR_TYPE_NET: | 432 break; 433 case INTR_TYPE_NET: |
| 427 mask = &net_imask; | 434 pri = PI_NET; |
| 428 break; 429 case INTR_TYPE_CAM: | 435 break; 436 case INTR_TYPE_CAM: |
| 430 mask = &cam_imask; | 437 pri = PI_DISK; /* XXX or PI_CAM? */ |
| 431 break; 432 case INTR_TYPE_MISC: | 438 break; 439 case INTR_TYPE_MISC: |
| 433 mask = 0; | 440 pri = PI_DULL; /* don't care */ |
| 434 break; | 441 break; |
| 442 /* We didn't specify an interrupt level. */ |
|
| 435 default: | 443 default: |
| 436 panic("still using grody create_intr interface"); | 444 panic("nexus_setup_intr: no interrupt type in flags"); |
| 437 } 438 439 /* 440 * We depend here on rman_activate_resource() being idempotent. 441 */ 442 error = rman_activate_resource(irq); 443 if (error) 444 return (error); 445 446 *cookiep = inthand_add(device_get_nameunit(child), irq->r_start, | 445 } 446 447 /* 448 * We depend here on rman_activate_resource() being idempotent. 449 */ 450 error = rman_activate_resource(irq); 451 if (error) 452 return (error); 453 454 *cookiep = inthand_add(device_get_nameunit(child), irq->r_start, |
| 447 ihand, arg, mask, icflags); | 455 ihand, arg, pri, icflags); |
| 448 if (*cookiep == NULL) 449 error = EINVAL; /* XXX ??? */ 450 451 return (error); 452} 453 454static int 455nexus_teardown_intr(device_t dev, device_t child, struct resource *r, void *ih) --- 51 unchanged lines hidden --- | 456 if (*cookiep == NULL) 457 error = EINVAL; /* XXX ??? */ 458 459 return (error); 460} 461 462static int 463nexus_teardown_intr(device_t dev, device_t child, struct resource *r, void *ih) --- 51 unchanged lines hidden --- |