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puc(4) does strange things to resources in order to fool the

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subdrivers to hook up.

It should probably be rewritten to implement a simple bus to which
the sub drivers attach using some kind of hint.

Until then, provide a couple of crutch functions with big warning
signs so it can survive the recent changes to struct resource.
This commit is contained in:
Poul-Henning Kamp 2005-09-28 18:06:25 +00:00
parent 29442a30e2
commit 64fd97df54
3 changed files with 37 additions and 4 deletions
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7
sys/dev/puc/puc.c
View file

@ -316,8 +316,7 @@ puc_attach(device_t dev, const struct puc_device_description *desc)
if (sc->barmuxed == 0) {
rle->res = sc->sc_bar_mappings[bidx].res;
} else {
rle->res = malloc(sizeof(struct resource), M_DEVBUF,
M_WAITOK | M_ZERO);
rle->res = rman_secret_puc_alloc_resource(M_WAITOK);
if (rle->res == NULL) {
free(pdev, M_DEVBUF);
return (ENOMEM);
@ -352,7 +351,7 @@ puc_attach(device_t dev, const struct puc_device_description *desc)
if (sc->barmuxed) {
bus_space_unmap(rman_get_bustag(rle->res),
rman_get_bushandle(rle->res), ressz);
free(rle->res, M_DEVBUF);
rman_secret_puc_free_resource(rle->res);
free(pdev, M_DEVBUF);
}
continue;
@ -372,7 +371,7 @@ puc_attach(device_t dev, const struct puc_device_description *desc)
if (sc->barmuxed) {
bus_space_unmap(rman_get_bustag(rle->res),
rman_get_bushandle(rle->res), ressz);
free(rle->res, M_DEVBUF);
rman_secret_puc_free_resource(rle->res);
free(pdev, M_DEVBUF);
}
}

25
sys/kern/subr_rman.c
View file

@ -98,6 +98,31 @@ int_alloc_resource(int malloc_flag)
return (r);
}
/*
* XXX: puc.c is a big hack.
* XXX: it should be rewritten to act like a bridge and offer
* XXX: its own resource manager.
* XXX: until somebody has time, help it out with these two functions
*/
struct resource *
rman_secret_puc_alloc_resource(int malloc_flag)
{
struct resource_i *r;
r = int_alloc_resource(malloc_flag);
if (r)
return (&r->r_r);
return (NULL);
}
void
rman_secret_puc_free_resource(struct resource *r)
{
free(r->__r_i, M_RMAN);
}
int
rman_init(struct rman *rm)
{

9
sys/sys/rman.h
View file

@ -174,6 +174,15 @@ void rman_set_start(struct resource *_r, u_long _start);
void rman_set_virtual(struct resource *_r, void *_v);
extern struct rman_head rman_head;
/*
* XXX: puc.c is a big hack.
* XXX: it should be rewritten to act like a bridge and offer
* XXX: its own resource manager.
* XXX: until somebody has time, help it out with these two functions
*/
struct resource *rman_secret_puc_alloc_resource(int malloc_flag);
void rman_secret_puc_free_resource(struct resource *r);
#endif /* _KERNEL */
#endif /* !_SYS_RMAN_H_ */