Allocate device softc from the device domain.
Since we are trying to bind device interrupt threads to the device domain, it should have sense to make memory often accessed by them local. If domain is not known, fall back to round-robin. MFC after: 2 weeks Sponsored by: iXsystems, Inc.
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parent
d195cbc09d
commit
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Notes:
svn2git
2020-12-20 02:59:44 +00:00
svn path=/head/; revision=353454
@ -34,6 +34,7 @@ __FBSDID("$FreeBSD$");
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#include <sys/param.h>
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#include <sys/conf.h>
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#include <sys/domainset.h>
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#include <sys/eventhandler.h>
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#include <sys/filio.h>
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#include <sys/lock.h>
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@ -2541,7 +2542,7 @@ void
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device_set_softc(device_t dev, void *softc)
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{
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if (dev->softc && !(dev->flags & DF_EXTERNALSOFTC))
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free(dev->softc, M_BUS_SC);
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free_domain(dev->softc, M_BUS_SC);
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dev->softc = softc;
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if (dev->softc)
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dev->flags |= DF_EXTERNALSOFTC;
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@ -2558,7 +2559,7 @@ device_set_softc(device_t dev, void *softc)
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void
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device_free_softc(void *softc)
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{
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free(softc, M_BUS_SC);
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free_domain(softc, M_BUS_SC);
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}
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/**
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@ -2817,6 +2818,9 @@ device_is_devclass_fixed(device_t dev)
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int
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device_set_driver(device_t dev, driver_t *driver)
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{
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int domain;
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struct domainset *policy;
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if (dev->state >= DS_ATTACHED)
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return (EBUSY);
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@ -2824,7 +2828,7 @@ device_set_driver(device_t dev, driver_t *driver)
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return (0);
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if (dev->softc && !(dev->flags & DF_EXTERNALSOFTC)) {
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free(dev->softc, M_BUS_SC);
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free_domain(dev->softc, M_BUS_SC);
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dev->softc = NULL;
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}
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device_set_desc(dev, NULL);
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@ -2833,8 +2837,12 @@ device_set_driver(device_t dev, driver_t *driver)
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if (driver) {
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kobj_init((kobj_t) dev, (kobj_class_t) driver);
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if (!(dev->flags & DF_EXTERNALSOFTC) && driver->size > 0) {
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dev->softc = malloc(driver->size, M_BUS_SC,
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M_NOWAIT | M_ZERO);
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if (bus_get_domain(dev, &domain) == 0)
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policy = DOMAINSET_PREF(domain);
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else
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policy = DOMAINSET_RR();
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dev->softc = malloc_domainset(driver->size, M_BUS_SC,
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policy, M_NOWAIT | M_ZERO);
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if (!dev->softc) {
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kobj_delete((kobj_t) dev, NULL);
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kobj_init((kobj_t) dev, &null_class);
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