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/** @file
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/** @file
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 */
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 */
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#include <arch/mm/as.h>
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#include <arch/mm/as.h>
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#include <genarch/mm/as_pt.h>
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#include <genarch/mm/as_pt.h>
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#include <genarch/mm/asid_fifo.h>
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#include <arch.h>
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/** Architecture dependent address space init. */
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/** Architecture dependent address space init. */
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void as_arch_init(void)
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void as_arch_init(void)
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{
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{
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    as_operations = &as_pt_operations;
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    as_operations = &as_pt_operations;
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    asid_fifo_init();
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}
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/** Install address space.
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 *
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 * Install ASID.
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 *
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 * @param as Address space structure.
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 *
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 */
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void as_install_arch(as_t *as)
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{
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    asid_t asid;
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    ipl_t ipl;
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    __u8 sr;
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    ipl = interrupts_disable();
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    spinlock_lock(&as->lock);
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    asid = as->asid;
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    /* Lower 2 GB, user and supervisor access */
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    for (sr = 0; sr < 8; sr++) {
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        asm volatile (
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            "mtsrin %0, %1\n"
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            :
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            : "r" (0x6000 + (asid << 4) + sr), "r" (sr * 0x1000)
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        );
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    }
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    /* Upper 2 GB, only supervisor access */
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    for (sr = 8; sr < 16; sr++) {
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        asm volatile (
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            "mtsrin %0, %1\n"
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            :
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            : "r" (0x4000 + (asid << 4) + sr), "r" (sr * 0x1000)
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        );
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    }
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    spinlock_unlock(&as->lock);
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    interrupts_restore(ipl);
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}
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}
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/** @}
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/** @}
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 */
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 */