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Rev 3022 Rev 4055
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#include <arch/barrier.h>
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#include <arch/barrier.h>
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#include <preemption.h>
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#include <preemption.h>
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#include <time/delay.h>
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#include <time/delay.h>
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#include <panic.h>
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#include <panic.h>
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/** Set the contents of the outgoing interrupt vector data.
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 *
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 * The first data item (data 0) will be set to the value of func, the
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 * rest of the vector will contain zeros.
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 *
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 * This is a helper function used from within the cross_call function.
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 *
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 * @param func value the first data item of the vector will be set to
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 */
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static inline void set_intr_w_data(void (* func)(void))
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{
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#if defined (US)
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    asi_u64_write(ASI_INTR_W, ASI_UDB_INTR_W_DATA_0, (uintptr_t) func);
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    asi_u64_write(ASI_INTR_W, ASI_UDB_INTR_W_DATA_1, 0);
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    asi_u64_write(ASI_INTR_W, ASI_UDB_INTR_W_DATA_2, 0);
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#elif defined (US3)
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    asi_u64_write(ASI_INTR_W, VA_INTR_W_DATA_0, (uintptr_t) func);
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    asi_u64_write(ASI_INTR_W, VA_INTR_W_DATA_1, 0);
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    asi_u64_write(ASI_INTR_W, VA_INTR_W_DATA_2, 0);
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    asi_u64_write(ASI_INTR_W, VA_INTR_W_DATA_3, 0);
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    asi_u64_write(ASI_INTR_W, VA_INTR_W_DATA_4, 0);
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    asi_u64_write(ASI_INTR_W, VA_INTR_W_DATA_5, 0);
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    asi_u64_write(ASI_INTR_W, VA_INTR_W_DATA_6, 0);
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    asi_u64_write(ASI_INTR_W, VA_INTR_W_DATA_7, 0);
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#endif
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}
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/** Invoke function on another processor.
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/** Invoke function on another processor.
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 *
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 *
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 * Currently, only functions without arguments are supported.
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 * Currently, only functions without arguments are supported.
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 * Supporting more arguments in the future should be no big deal.
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 * Supporting more arguments in the future should be no big deal.
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 *
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 *
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    preemption_disable();
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    preemption_disable();
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    status = asi_u64_read(ASI_INTR_DISPATCH_STATUS, 0);
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    status = asi_u64_read(ASI_INTR_DISPATCH_STATUS, 0);
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    if (status & INTR_DISPATCH_STATUS_BUSY)
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    if (status & INTR_DISPATCH_STATUS_BUSY)
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        panic("Interrupt Dispatch Status busy bit set\n");
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        panic("Interrupt Dispatch Status busy bit set.");
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    ASSERT(!(pstate_read() & PSTATE_IE_BIT));
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    do {
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    do {
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        asi_u64_write(ASI_UDB_INTR_W, ASI_UDB_INTR_W_DATA_0,
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            (uintptr_t) func);
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        set_intr_w_data(func);
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        asi_u64_write(ASI_UDB_INTR_W, ASI_UDB_INTR_W_DATA_1, 0);
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        asi_u64_write(ASI_UDB_INTR_W, ASI_UDB_INTR_W_DATA_2, 0);
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        asi_u64_write(ASI_UDB_INTR_W,
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        asi_u64_write(ASI_INTR_W,
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            (mid << INTR_VEC_DISPATCH_MID_SHIFT) |
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            (mid << INTR_VEC_DISPATCH_MID_SHIFT) |
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            ASI_UDB_INTR_W_DISPATCH, 0);
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            VA_INTR_W_DISPATCH, 0);
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        membar();
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        membar();
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        do {
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        do {
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            status = asi_u64_read(ASI_INTR_DISPATCH_STATUS, 0);
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            status = asi_u64_read(ASI_INTR_DISPATCH_STATUS, 0);
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    switch (ipi) {
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    switch (ipi) {
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    case IPI_TLB_SHOOTDOWN:
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    case IPI_TLB_SHOOTDOWN:
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        func = tlb_shootdown_ipi_recv;
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        func = tlb_shootdown_ipi_recv;
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        break;
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        break;
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    default:
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    default:
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        panic("Unknown IPI (%d).\n", ipi);
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        panic("Unknown IPI (%d).", ipi);
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        break;
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        break;
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    }
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    }
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    /*
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    /*
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     * As long as we don't support hot-plugging
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     * As long as we don't support hot-plugging