freebsd-dev/sys/dev/dpaa/bman_portals.c
Justin Hibbits f77405e334 Use proper integer-pointer type conversions.
As part of an effort to extend Book-E to the 64-bit world, make the necessary
changes to the DPAA/dTSEC driver set to be integer-pointer conversion clean.
This means no more casts to int, and use uintptr_t where needed.

Since the NCSW source is effectively obsolete, direct changes to the source tree
are safe.
2016-10-18 00:55:15 +00:00

181 lines
4.5 KiB
C

/*-
* Copyright (c) 2012 Semihalf.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include "opt_platform.h"
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/kernel.h>
#include <sys/bus.h>
#include <sys/lock.h>
#include <sys/module.h>
#include <sys/mutex.h>
#include <sys/proc.h>
#include <sys/pcpu.h>
#include <sys/sched.h>
#include <machine/bus.h>
#include <machine/tlb.h>
#include <dev/ofw/ofw_bus.h>
#include <dev/ofw/ofw_bus_subr.h>
#include <powerpc/mpc85xx/mpc85xx.h>
#include "bman.h"
#include "portals.h"
t_Handle bman_portal_setup(struct bman_softc *);
struct dpaa_portals_softc *bp_sc;
int
bman_portals_attach(device_t dev)
{
struct dpaa_portals_softc *sc;
sc = bp_sc = device_get_softc(dev);
/* Map bman portal to physical address space */
if (law_enable(OCP85XX_TGTIF_BMAN, sc->sc_dp_pa, sc->sc_dp_size)) {
bman_portals_detach(dev);
return (ENXIO);
}
/* Set portal properties for XX_VirtToPhys() */
XX_PortalSetInfo(dev);
return (bus_generic_attach(dev));
}
int
bman_portals_detach(device_t dev)
{
struct dpaa_portals_softc *sc;
int i;
bp_sc = NULL;
sc = device_get_softc(dev);
for (i = 0; i < ARRAY_SIZE(sc->sc_dp); i++) {
if (sc->sc_dp[i].dp_ph != NULL) {
thread_lock(curthread);
sched_bind(curthread, i);
thread_unlock(curthread);
BM_PORTAL_Free(sc->sc_dp[i].dp_ph);
thread_lock(curthread);
sched_unbind(curthread);
thread_unlock(curthread);
}
if (sc->sc_dp[i].dp_ires != NULL) {
XX_DeallocIntr((uintptr_t)sc->sc_dp[i].dp_ires);
bus_release_resource(dev, SYS_RES_IRQ,
sc->sc_dp[i].dp_irid, sc->sc_dp[i].dp_ires);
}
}
for (i = 0; i < ARRAY_SIZE(sc->sc_rres); i++) {
if (sc->sc_rres[i] != NULL)
bus_release_resource(dev, SYS_RES_MEMORY,
sc->sc_rrid[i],
sc->sc_rres[i]);
}
return (0);
}
t_Handle
bman_portal_setup(struct bman_softc *bsc)
{
struct dpaa_portals_softc *sc;
t_BmPortalParam bpp;
t_Handle portal;
unsigned int cpu;
uintptr_t p;
/* Return NULL if we're not ready or while detach */
if (bp_sc == NULL)
return (NULL);
sc = bp_sc;
sched_pin();
portal = NULL;
cpu = PCPU_GET(cpuid);
/* Check if portal is ready */
while (atomic_cmpset_acq_ptr((uintptr_t *)&sc->sc_dp[cpu].dp_ph,
0, -1) == 0) {
p = atomic_load_acq_ptr((uintptr_t *)&sc->sc_dp[cpu].dp_ph);
/* Return if portal is already initialized */
if (p != 0 && p != -1) {
sched_unpin();
return ((t_Handle)p);
}
/* Not inititialized and "owned" by another thread */
thread_lock(curthread);
mi_switch(SW_VOL, NULL);
thread_unlock(curthread);
}
/* Map portal registers */
dpaa_portal_map_registers(sc);
/* Configure and initialize portal */
bpp.ceBaseAddress = rman_get_bushandle(sc->sc_rres[0]);
bpp.ciBaseAddress = rman_get_bushandle(sc->sc_rres[1]);
bpp.h_Bm = bsc->sc_bh;
bpp.swPortalId = cpu;
bpp.irq = (uintptr_t)sc->sc_dp[cpu].dp_ires;
portal = BM_PORTAL_Config(&bpp);
if (portal == NULL)
goto err;
if (BM_PORTAL_Init(portal) != E_OK)
goto err;
atomic_store_rel_ptr((uintptr_t *)&sc->sc_dp[cpu].dp_ph, (uintptr_t)portal);
sched_unpin();
return (portal);
err:
if (portal != NULL)
BM_PORTAL_Free(portal);
atomic_store_rel_ptr((uintptr_t *)&sc->sc_dp[cpu].dp_ph, 0);
sched_unpin();
return (NULL);
}