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Lines 52-57
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#include <sys/proc.h> |
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#include <sys/proc.h> |
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#include <sys/ucred.h> |
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#include <sys/ucred.h> |
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#include <machine/atomic.h> |
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#include <machine/bus.h> |
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#include <machine/bus.h> |
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#include <dev/dcons/dcons.h> |
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#include <dev/dcons/dcons.h> |
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Lines 135-146
extern struct gdb_dbgport *gdb_cur;
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#endif |
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#endif |
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static tsw_outwakeup_t dcons_outwakeup; |
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static tsw_outwakeup_t dcons_outwakeup; |
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static tsw_free_t dcons_free; |
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static struct ttydevsw dcons_ttydevsw = { |
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static struct ttydevsw dcons_ttydevsw = { |
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.tsw_flags = TF_NOPREFIX, |
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.tsw_flags = TF_NOPREFIX, |
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.tsw_outwakeup = dcons_outwakeup, |
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.tsw_outwakeup = dcons_outwakeup, |
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.tsw_free = dcons_free, |
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}; |
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}; |
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static int dcons_close_refs; |
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#if (defined(GDB) || defined(DDB)) |
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#if (defined(GDB) || defined(DDB)) |
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static int |
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static int |
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dcons_check_break(struct dcons_softc *dc, int c) |
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dcons_check_break(struct dcons_softc *dc, int c) |
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Lines 198-203
dcons_os_putc(struct dcons_softc *dc, int c)
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} |
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} |
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static void |
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static void |
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dcons_free(void *xsc __unused) |
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{ |
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/* Our deferred free has arrived, now we're waiting for one fewer. */ |
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atomic_subtract_rel_int(&dcons_close_refs, 1); |
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} |
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static void |
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dcons_outwakeup(struct tty *tp) |
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dcons_outwakeup(struct tty *tp) |
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{ |
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{ |
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struct dcons_softc *dc; |
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struct dcons_softc *dc; |
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Lines 396-401
dcons_detach(int port)
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dc = &sc[port]; |
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dc = &sc[port]; |
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tp = dc->tty; |
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tp = dc->tty; |
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/* tty_rel_gone() schedules a deferred free callback, count it. */ |
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atomic_add_int(&dcons_close_refs, 1); |
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tty_lock(tp); |
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tty_lock(tp); |
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tty_rel_gone(tp); |
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tty_rel_gone(tp); |
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Lines 430-435
dcons_modevent(module_t mode, int type, void *data
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contigfree(dg.buf, DCONS_BUF_SIZE, M_DEVBUF); |
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contigfree(dg.buf, DCONS_BUF_SIZE, M_DEVBUF); |
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} |
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} |
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/* Wait for tty deferred free callbacks to complete. */ |
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while (atomic_load_acq_int(&dcons_close_refs) > 0) |
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pause_sbt("dcunld", mstosbt(50), mstosbt(10), 0); |
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break; |
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break; |
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case MOD_SHUTDOWN: |
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case MOD_SHUTDOWN: |
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#if 0 /* Keep connection after halt */ |
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#if 0 /* Keep connection after halt */ |