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#include <print.h>
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#include <print.h>
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#include <arch/register.h>
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#include <arch/register.h>
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#include <genarch/ofw/ofw_tree.h>
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#include <genarch/ofw/ofw_tree.h>
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#include <arch/types.h>
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#include <arch/types.h>
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#include <arch/drivers/tick.h>
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#include <arch/drivers/tick.h>
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#include <arch/mm/page.h>
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#include <arch/mm/tlb.h>
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#include <macros.h>
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/** Perform sparc64 specific initialization of the processor structure for the current processor. */
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/** Perform sparc64 specific initialization of the processor structure for the current processor. */
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void cpu_arch_init(void)
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void cpu_arch_init(void)
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{
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{
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    ofw_tree_node_t *node;
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    ofw_tree_node_t *node;
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    upa_config_t upa_config;
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    upa_config_t upa_config;
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    upa_config.value = upa_config_read();
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    upa_config.value = upa_config_read();
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    CPU->arch.mid = upa_config.mid;
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    CPU->arch.mid = upa_config.mid;
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    /*
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     * Detect processor frequency.
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     */
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    node = ofw_tree_find_child_by_device_type(ofw_tree_lookup("/"), "cpu");
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    node = ofw_tree_find_child_by_device_type(ofw_tree_lookup("/"), "cpu");
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    while (node) {
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    while (node) {
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        ofw_tree_property_t *prop;
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        ofw_tree_property_t *prop;
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        prop = ofw_tree_getprop(node, "upa-portid");
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        prop = ofw_tree_getprop(node, "upa-portid");
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        node = ofw_tree_find_peer_by_device_type(node, "cpu");
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        node = ofw_tree_find_peer_by_device_type(node, "cpu");
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    }
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    }
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    CPU->arch.clock_frequency = clock_frequency;
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    CPU->arch.clock_frequency = clock_frequency;
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    tick_init();
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    tick_init();
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    /*
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     * Lock CPU stack in DTLB.
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     */
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    uintptr_t base = ALIGN_DOWN(config.base, 1<<KERNEL_PAGE_WIDTH);
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    if (!overlaps((uintptr_t) CPU->stack, PAGE_SIZE, base, (1<<KERNEL_PAGE_WIDTH))) {
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        /*
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         * Kernel stack of this processor is not locked in DTLB.
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         * First, demap any already existing mappings.
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         * Second, create a locked mapping for it.
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         */
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        dtlb_demap(TLB_DEMAP_PAGE, TLB_DEMAP_NUCLEUS, (uintptr_t) CPU->stack);
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        dtlb_insert_mapping((uintptr_t) CPU->stack, KA2PA(CPU->stack), PAGESIZE_8K, true, true);
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    }
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}
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}
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/** Read version information from the current processor. */
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/** Read version information from the current processor. */
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void cpu_identify(void)
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void cpu_identify(void)
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{
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{