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author | marius <marius@FreeBSD.org> | 2007-06-16 23:46:41 +0000 |
---|---|---|
committer | marius <marius@FreeBSD.org> | 2007-06-16 23:46:41 +0000 |
commit | c27e004e369394368708818d1dab95e1e1f31267 (patch) | |
tree | 00ee173f294abde3abdc57e22d5c734a80ec4c9e /sys/sparc64/pci | |
parent | 5956b5bc21c96b25c05bcdb8b76e1fd590072f14 (diff) | |
download | FreeBSD-src-c27e004e369394368708818d1dab95e1e1f31267.zip FreeBSD-src-c27e004e369394368708818d1dab95e1e1f31267.tar.gz |
- Use the newly introduced pcib_mtx spin lock to lock psycho_ce(),
allowing it to be a filter/"fast" handler. Locking the interrupt
handlers with a spin lock is mainly a requirement in schizo(4)
but as we ought to register the spin lock anyway it should not
hurt to take advantage of it in psycho(4).
- Pass both a driver_filter_t and a driver_intr_t argument to
psycho_set_intr(), allowing to get rid of the FAST interrupt
flag hack.
- Don't register the over-temperature interrupt handler as filter/
"fast" handler so shutdown_nice() can acquire the process lock.
- Use bus_{read,write}_8() instead of bus_space_{read,write}_8()
in order to get rid of sc_bushandle and sc_bustag in the softc.
- Correct the debug output for adjusting the subordinate bus number.
- Remove the banal and outdated above psycho_filter_stub().
- Fix some white space nits.
Diffstat (limited to 'sys/sparc64/pci')
-rw-r--r-- | sys/sparc64/pci/psycho.c | 108 | ||||
-rw-r--r-- | sys/sparc64/pci/psychovar.h | 6 |
2 files changed, 54 insertions, 60 deletions
diff --git a/sys/sparc64/pci/psycho.c b/sys/sparc64/pci/psycho.c index 195252f..4dcccef 100644 --- a/sys/sparc64/pci/psycho.c +++ b/sys/sparc64/pci/psycho.c @@ -46,8 +46,10 @@ __FBSDID("$FreeBSD$"); #include <sys/bus.h> #include <sys/kdb.h> #include <sys/kernel.h> +#include <sys/lock.h> #include <sys/malloc.h> #include <sys/module.h> +#include <sys/mutex.h> #include <sys/pcpu.h> #include <sys/reboot.h> @@ -78,8 +80,8 @@ __FBSDID("$FreeBSD$"); static const struct psycho_desc *psycho_find_desc(const struct psycho_desc *, const char *); static const struct psycho_desc *psycho_get_desc(device_t); -static void psycho_set_intr(struct psycho_softc *, int, bus_addr_t, int, - driver_filter_t); +static void psycho_set_intr(struct psycho_softc *, int, bus_addr_t, + driver_filter_t, driver_intr_t); static int psycho_find_intrmap(struct psycho_softc *, int, bus_addr_t *, bus_addr_t *, u_long *); static driver_filter_t psycho_filter_stub; @@ -91,7 +93,7 @@ static driver_filter_t psycho_ue; static driver_filter_t psycho_ce; static driver_filter_t psycho_pci_bus; static driver_filter_t psycho_powerfail; -static driver_filter_t psycho_overtemp; +static driver_intr_t psycho_overtemp; #ifdef PSYCHO_MAP_WAKEUP static driver_filter_t psycho_wakeup; #endif @@ -171,7 +173,7 @@ SLIST_HEAD(, psycho_softc) psycho_softcs = struct psycho_clr { struct psycho_softc *pci_sc; bus_addr_t pci_clr; /* clear register */ - driver_filter_t *pci_filter; + driver_filter_t *pci_filter; /* filter to call */ driver_intr_t *pci_handler; /* handler to call */ void *pci_arg; /* argument for the handler */ void *pci_cookie; /* parent bus int. cookie */ @@ -182,9 +184,9 @@ struct psycho_clr { }; #define PSYCHO_READ8(sc, off) \ - bus_space_read_8((sc)->sc_bustag, (sc)->sc_bushandle, (off)) + bus_read_8((sc)->sc_mem_res, (off)) #define PSYCHO_WRITE8(sc, off, v) \ - bus_space_write_8((sc)->sc_bustag, (sc)->sc_bushandle, (off), (v)) + bus_write_8((sc)->sc_mem_res, (off), (v)) #define PCICTL_READ8(sc, off) \ PSYCHO_READ8((sc), (sc)->sc_pcictl + (off)) #define PCICTL_WRITE8(sc, off, v) \ @@ -219,14 +221,6 @@ struct psycho_clr { * providing two PCI buses. */ -#define FAST 0x66600000 - -#ifdef DEBUGGER_ON_POWERFAIL -#define PSYCHO_PWRFAIL_INT_FLAGS FAST -#else -#define PSYCHO_PWRFAIL_INT_FLAGS 0 -#endif - #define OFW_PCI_TYPE "pci" struct psycho_desc { @@ -346,8 +340,6 @@ psycho_attach(device_t dev) RF_ACTIVE); if (sc->sc_mem_res == NULL) panic("%s: could not allocate registers", __func__); - sc->sc_bustag = rman_get_bustag(sc->sc_mem_res); - sc->sc_bushandle = rman_get_bushandle(sc->sc_mem_res); /* * Match other Psycho's that are already configured against @@ -363,6 +355,17 @@ psycho_attach(device_t dev) break; } } + if (osc == NULL) { + sc->sc_mtx = malloc(sizeof(*sc->sc_mtx), M_DEVBUF, + M_NOWAIT | M_ZERO); + if (sc->sc_mtx == NULL) + panic("%s: could not malloc mutex", __func__); + mtx_init(sc->sc_mtx, "pcib_mtx", NULL, MTX_SPIN); + } else { + if (mtx_initialized(osc->sc_mtx) == 0) + panic("%s: mutex not initialized", __func__); + sc->sc_mtx = osc->sc_mtx; + } /* Clear PCI AFSR. */ PCICTL_WRITE8(sc, PCR_AFS, PCIAFSR_ERRMASK); @@ -487,7 +490,7 @@ psycho_attach(device_t dev) * interrupt but they are also only used for PCI bus A. */ psycho_set_intr(sc, 0, sc->sc_half == 0 ? PSR_PCIAERR_INT_MAP : - PSR_PCIBERR_INT_MAP, FAST, psycho_pci_bus); + PSR_PCIBERR_INT_MAP, psycho_pci_bus, NULL); /* * If we're a Hummingbird/Sabre or the first of a pair of Psycho's to @@ -503,10 +506,15 @@ psycho_attach(device_t dev) * XXX Not all controllers have these, but installing them * is better than trying to sort through this mess. */ - psycho_set_intr(sc, 1, PSR_UE_INT_MAP, FAST, psycho_ue); - psycho_set_intr(sc, 2, PSR_CE_INT_MAP, 0, psycho_ce); - psycho_set_intr(sc, 3, PSR_POWER_INT_MAP, - PSYCHO_PWRFAIL_INT_FLAGS, psycho_powerfail); + psycho_set_intr(sc, 1, PSR_UE_INT_MAP, psycho_ue, NULL); + psycho_set_intr(sc, 2, PSR_CE_INT_MAP, psycho_ce, NULL); +#ifdef DEBUGGER_ON_POWERFAIL + psycho_set_intr(sc, 3, PSR_POWER_INT_MAP, psycho_powerfail, + NULL); +#else + psycho_set_intr(sc, 3, PSR_POWER_INT_MAP, NULL, + (driver_intr_t *)psycho_powerfail); +#endif /* Psycho-specific initialization */ if (sc->sc_mode == PSYCHO_MODE_PSYCHO) { /* @@ -518,20 +526,20 @@ psycho_attach(device_t dev) * The spare hardware interrupt is used for the * over-temperature interrupt. */ - psycho_set_intr(sc, 4, PSR_SPARE_INT_MAP, FAST, - psycho_overtemp); + psycho_set_intr(sc, 4, PSR_SPARE_INT_MAP, + NULL, psycho_overtemp); #ifdef PSYCHO_MAP_WAKEUP /* * psycho_wakeup() doesn't do anything useful right * now. */ - psycho_set_intr(sc, 5, PSR_PWRMGT_INT_MAP, 0, - psycho_wakeup); + psycho_set_intr(sc, 5, PSR_PWRMGT_INT_MAP, + psycho_wakeup, NULL); #endif /* PSYCHO_MAP_WAKEUP */ /* Initialize the counter-timer. */ - sparc64_counter_init(sc->sc_bustag, sc->sc_bushandle, - PSR_TC0); + sparc64_counter_init(rman_get_bustag(sc->sc_mem_res), + rman_get_bushandle(sc->sc_mem_res), PSR_TC0); } /* @@ -655,32 +663,21 @@ psycho_attach(device_t dev) } static void -psycho_set_intr(struct psycho_softc *sc, int index, bus_addr_t map, int iflags, - driver_filter_t handler) +psycho_set_intr(struct psycho_softc *sc, int index, bus_addr_t map, + driver_filter_t filt, driver_intr_t intr) { uint64_t mr; - int res, rid; + int rid; - res = EINVAL; rid = index; mr = PSYCHO_READ8(sc, map); sc->sc_irq_res[index] = bus_alloc_resource_any(sc->sc_dev, SYS_RES_IRQ, &rid, RF_ACTIVE); - if (sc->sc_irq_res[index] != NULL && - rman_get_start(sc->sc_irq_res[index]) == INTVEC(mr)) { - if (iflags & FAST) { - iflags &= ~FAST; - res = bus_setup_intr(sc->sc_dev, sc->sc_irq_res[index], - INTR_TYPE_MISC | iflags, handler, NULL, sc, - &sc->sc_ihand[index]); - } else - res = bus_setup_intr(sc->sc_dev, sc->sc_irq_res[index], - INTR_TYPE_MISC | iflags, NULL, - (driver_intr_t *)handler, sc, - &sc->sc_ihand[index]); - } - if (res) - panic("%s: failed to set up interrupt", __func__); + if (sc->sc_irq_res[index] == NULL || + rman_get_start(sc->sc_irq_res[index]) != INTVEC(mr) || + bus_setup_intr(sc->sc_dev, sc->sc_irq_res[index], INTR_TYPE_MISC, + filt, intr, sc, &sc->sc_ihand[index]) != 0) + panic("%s: failed to set up interrupt %d", __func__, index); PSYCHO_WRITE8(sc, map, INTMAP_ENABLE(mr, PCPU_GET(mid))); } @@ -765,6 +762,7 @@ psycho_ce(void *arg) struct psycho_softc *sc = arg; uint64_t afar, afsr; + mtx_lock_spin(sc->sc_mtx); afar = PSYCHO_READ8(sc, PSR_CE_AFA); afsr = PSYCHO_READ8(sc, PSR_CE_AFS); device_printf(sc->sc_dev, "correctable DMA error AFAR %#lx " @@ -772,6 +770,7 @@ psycho_ce(void *arg) /* Clear the error bits that we caught. */ PSYCHO_WRITE8(sc, PSR_CE_AFS, afsr & CEAFSR_ERRMASK); PSYCHO_WRITE8(sc, PSR_CE_INT_CLR, 0); + mtx_unlock_spin(sc->sc_mtx); return (FILTER_HANDLED); } @@ -792,7 +791,6 @@ psycho_pci_bus(void *arg) static int psycho_powerfail(void *arg) { - #ifdef DEBUGGER_ON_POWERFAIL struct psycho_softc *sc = arg; @@ -805,13 +803,12 @@ psycho_powerfail(void *arg) return (FILTER_HANDLED); } -static int +static void psycho_overtemp(void *arg) { printf("DANGER: OVER TEMPERATURE detected.\nShutting down NOW.\n"); shutdown_nice(RB_POWEROFF); - return (FILTER_HANDLED); } #ifdef PSYCHO_MAP_WAKEUP @@ -834,8 +831,8 @@ psycho_iommu_init(struct psycho_softc *sc, int tsbsize, uint32_t dvmabase) struct iommu_state *is = sc->sc_is; /* Punch in our copies. */ - is->is_bustag = sc->sc_bustag; - is->is_bushandle = sc->sc_bushandle; + is->is_bustag = rman_get_bustag(sc->sc_mem_res); + is->is_bushandle = rman_get_bushandle(sc->sc_mem_res); is->is_iommu = PSR_IOMMU; is->is_dtag = PSR_IOMMU_TLB_TAG_DIAG; is->is_ddram = PSR_IOMMU_TLB_DATA_DIAG; @@ -982,7 +979,6 @@ psycho_read_ivar(device_t dev, device_t child, int which, uintptr_t *result) return (ENOENT); } -/* Write to the correct clr register, and call the actual handler. */ static int psycho_filter_stub(void *arg) { @@ -992,8 +988,8 @@ psycho_filter_stub(void *arg) if (pc->pci_filter != NULL) { res = pc->pci_filter(pc->pci_arg); PSYCHO_WRITE8(pc->pci_sc, pc->pci_clr, 0); - } else - res = FILTER_SCHEDULE_THREAD; + } else + res = FILTER_SCHEDULE_THREAD; return (res); } @@ -1320,7 +1316,7 @@ psycho_adjust_busrange(device_t dev, u_int subbus) if (subbus > sc->sc_pci_subbus) { #ifdef PSYCHO_DEBUG device_printf(dev, - "adjusting secondary bus number from %d to %d\n", + "adjusting subordinate bus number from %d to %d\n", sc->sc_pci_subbus, subbus); #endif sc->sc_pci_subbus = subbus; @@ -1339,7 +1335,7 @@ psycho_alloc_bus_tag(struct psycho_softc *sc, int type) panic("%s: out of memory", __func__); bt->bst_cookie = sc; - bt->bst_parent = sc->sc_bustag; + bt->bst_parent = rman_get_bustag(sc->sc_mem_res); bt->bst_type = type; return (bt); } diff --git a/sys/sparc64/pci/psychovar.h b/sys/sparc64/pci/psychovar.h index fe20fe6..ddb4661 100644 --- a/sys/sparc64/pci/psychovar.h +++ b/sys/sparc64/pci/psychovar.h @@ -40,13 +40,11 @@ struct psycho_softc { device_t sc_dev; + struct mtx *sc_mtx; + /* Interrupt Group Number for this device */ int sc_ign; - /* Our tags (from parent) */ - bus_space_tag_t sc_bustag; - bus_space_handle_t sc_bushandle; - bus_addr_t sc_pcictl; phandle_t sc_node; /* Firmware node */ |