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/*-
* 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 "qman.h"
#include "portals.h"
extern e_RxStoreResponse qman_received_frame_callback(t_Handle, t_Handle,
t_Handle, uint32_t, t_DpaaFD *);
extern e_RxStoreResponse qman_rejected_frame_callback(t_Handle, t_Handle,
t_Handle, uint32_t, t_DpaaFD *, t_QmRejectedFrameInfo *);
t_Handle qman_portal_setup(struct qman_softc *);
struct dpaa_portals_softc *qp_sc;
int
qman_portals_attach(device_t dev)
{
struct dpaa_portals_softc *sc;
sc = qp_sc = device_get_softc(dev);
/* Map bman portal to physical address space */
if (law_enable(OCP85XX_TGTIF_QMAN, sc->sc_dp_pa, sc->sc_dp_size)) {
qman_portals_detach(dev);
return (ENXIO);
}
/* Set portal properties for XX_VirtToPhys() */
XX_PortalSetInfo(dev);
return (bus_generic_attach(dev));
}
int
qman_portals_detach(device_t dev)
{
struct dpaa_portals_softc *sc;
int i;
qp_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);
QM_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((int)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
qman_portal_setup(struct qman_softc *qsc)
{
struct dpaa_portals_softc *sc;
t_QmPortalParam qpp;
unsigned int cpu, p;
t_Handle portal;
/* Return NULL if we're not ready or while detach */
if (qp_sc == NULL)
return (NULL);
sc = qp_sc;
sched_pin();
portal = NULL;
cpu = PCPU_GET(cpuid);
/* Check if portal is ready */
while (atomic_cmpset_acq_32((uint32_t *)&sc->sc_dp[cpu].dp_ph,
0, -1) == 0) {
p = atomic_load_acq_32((uint32_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 */
qpp.ceBaseAddress = rman_get_bushandle(sc->sc_rres[0]);
qpp.ciBaseAddress = rman_get_bushandle(sc->sc_rres[1]);
qpp.h_Qm = qsc->sc_qh;
qpp.swPortalId = cpu;
qpp.irq = (int)sc->sc_dp[cpu].dp_ires;
qpp.fdLiodnOffset = 0;
qpp.f_DfltFrame = qman_received_frame_callback;
qpp.f_RejectedFrame = qman_rejected_frame_callback;
qpp.h_App = qsc;
portal = QM_PORTAL_Config(&qpp);
if (portal == NULL)
goto err;
if (QM_PORTAL_Init(portal) != E_OK)
goto err;
if (QM_PORTAL_AddPoolChannel(portal, QMAN_COMMON_POOL_CHANNEL) != E_OK)
goto err;
atomic_store_rel_32((uint32_t *)&sc->sc_dp[cpu].dp_ph,
(uint32_t)portal);
sched_unpin();
return (portal);
err:
if (portal != NULL)
QM_PORTAL_Free(portal);
atomic_store_rel_32((uint32_t *)&sc->sc_dp[cpu].dp_ph, 0);
sched_unpin();
return (NULL);
}
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