94 lines
2.2 KiB
C
94 lines
2.2 KiB
C
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#include <console/console.h>
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#include <arch/pirq_routing.h>
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#include <string.h>
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#ifdef DEBUG
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void check_pirq_routing_table(void)
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{
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const u8 *addr;
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const struct irq_routing_table *rt;
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int i;
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u8 sum;
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printk_info("Checking IRQ routing tables...\n");
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#ifdef(IRQ_SLOT_COUNT)
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if (sizeof(intel_irq_routing_table) != intel_irq_routing_table.size) {
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printk_warning("Inconsistent IRQ routing table size\n");
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}
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#endif
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rt = &intel_irq_routing_table;
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addr = (u8 *)rt;
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sum = 0;
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for (i = 0; i < rt->size; i++)
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sum += addr[i];
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printk_debug("%s:%6d:%s() - irq_routing_table located at: 0x%p\n",
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__FILE__, __LINE__, __FUNCTION__, addr);
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sum = (unsigned char)(rt->checksum-sum);
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if (sum != rt->checksum) {
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printk_warning("%s:%6d:%s() - "
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"checksum is: 0x%02x but should be: 0x%02x\n",
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__FILE__, __LINE__, __FUNCTION__, rt->checksum, sum);
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}
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if (rt->signature != PIRQ_SIGNATURE || rt->version != PIRQ_VERSION ||
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rt->size % 16 || rt->size < sizeof(struct irq_routing_table)) {
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printk_warning("%s:%6d:%s() - "
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"Interrupt Routing Table not valid\n",
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__FILE__, __LINE__, __FUNCTION__);
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return;
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}
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sum = 0;
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for (i=0; i<rt->size; i++)
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sum += addr[i];
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if (sum) {
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printk_warning("%s:%6d:%s() - "
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"checksum error in irq routing table\n",
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__FILE__, __LINE__, __FUNCTION__);
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}
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printk_info("done.\n");
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}
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int verify_copy_pirq_routing_table(unsigned long addr)
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{
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int i;
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u8 *rt_orig, *rt_curr;
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rt_curr = (u8*)addr;
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rt_orig = (u8*)&intel_irq_routing_table;
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printk_info("Verifing priq routing tables copy at 0x%x...", addr);
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for (i = 0; i < intel_irq_routing_table.size; i++) {
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if (*(rt_curr + i) != *(rt_orig + i)) {
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printk_info("failed\n");
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return -1;
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}
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}
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printk_info("succeed\n");
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return 0;
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}
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#else
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#define verify_copy_pirq_routing_table(addr)
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#endif
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unsigned long copy_pirq_routing_table(unsigned long addr)
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{
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/* Align the table to be 16 byte aligned. */
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addr += 15;
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addr &= ~15;
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/* This table must be betweeen 0xf0000 & 0x100000 */
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printk_info("Copying IRQ routing tables to 0x%x...", addr);
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memcpy((void *)addr, &intel_irq_routing_table, intel_irq_routing_table.size);
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printk_info("done.\n");
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verify_copy_pirq_routing_table(addr);
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return addr + intel_irq_routing_table.size;
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}
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