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Rev 2091 Rev 2107
Line 134... Line 134...
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 * @param t Microseconds to wait.
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 * @param t Microseconds to wait.
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 */
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 */
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void asm_delay_loop(const uint32_t usec)
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void asm_delay_loop(const uint32_t usec)
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{
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{
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    uint64_t stop = tick_read() + (uint64_t) usec * (uint64_t)
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    uint64_t stop = tick_read() + (uint64_t) usec * (uint64_t)
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        CPU->arch.clock_frequency / 1000000;
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        CPU->arch.clock_frequency / 1000000;
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    while (tick_read() < stop)
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    while (tick_read() < stop)
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        ;
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        ;
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}
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}
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/** Switch to userspace. */
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/** Switch to userspace. */
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void userspace(uspace_arg_t *kernel_uarg)
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void userspace(uspace_arg_t *kernel_uarg)
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{
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{
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    switch_to_userspace((uintptr_t) kernel_uarg->uspace_entry,
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    switch_to_userspace((uintptr_t) kernel_uarg->uspace_entry,
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        ((uintptr_t) kernel_uarg->uspace_stack) + STACK_SIZE
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        ((uintptr_t) kernel_uarg->uspace_stack) + STACK_SIZE
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        - (ALIGN_UP(STACK_ITEM_SIZE, STACK_ALIGNMENT) + STACK_BIAS),
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        - (ALIGN_UP(STACK_ITEM_SIZE, STACK_ALIGNMENT) + STACK_BIAS),
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        (uintptr_t) kernel_uarg->uspace_uarg);
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        (uintptr_t) kernel_uarg->uspace_uarg);
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    for (;;)
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    for (;;)
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        ;
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        ;
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    /* not reached */
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    /* not reached */
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}
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}