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#include <arch/drivers/tick.h>
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#include <arch/drivers/tick.h>
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#include <proc/thread.h>
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#include <proc/thread.h>
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#include <console/console.h>
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#include <console/console.h>
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#include <arch/boot/boot.h>
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#include <arch/boot/boot.h>
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#include <arch/arch.h>
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#include <arch/arch.h>
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#include <arch/asm.h>
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#include <arch/mm/page.h>
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#include <arch/mm/page.h>
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#include <arch/stack.h>
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#include <arch/stack.h>
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#include <userspace.h>
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#include <userspace.h>
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bootinfo_t bootinfo;
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bootinfo_t bootinfo;
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    if (!t)
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    if (!t)
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        panic("cannot create kkbdpoll\n");
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        panic("cannot create kkbdpoll\n");
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    thread_ready(t);
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    thread_ready(t);
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}
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}
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/** Calibrate delay loop.
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 *
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 * On sparc64, we implement delay() by waiting for the TICK register to
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 * reach a pre-computed value, as opposed to performing some pre-computed
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 * amount of instructions of known duration. We set the delay_loop_const
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 * to 1 in order to neutralize the multiplication done by delay().
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 */
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void calibrate_delay_loop(void)
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void calibrate_delay_loop(void)
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{
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{
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    CPU->delay_loop_const = 1;
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}
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/** Wait several microseconds.
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 *
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 * We assume that interrupts are already disabled.
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 *
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 * @param t Microseconds to wait.
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 */
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void asm_delay_loop(const uint32_t usec)
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{
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    uint64_t stop = tick_read() + (uint64_t) usec * (uint64_t) CPU->arch.clock_frequency / 1000000;
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    while (tick_read() < stop)
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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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{