blob: bb0f66b280f949af3128df77c736b1d572a2cbc1 [file] [log] [blame]
#include <console/console.h>
#include <arch/pirq_routing.h>
#include <string.h>
#if (DEBUG==1 && HAVE_PIRQ_TABLE==1)
void check_pirq_routing_table(void)
{
const uint8_t *addr;
const struct irq_routing_table *rt;
int i;
uint8_t sum;
printk_info("Checking IRQ routing tables...\n");
#if defined(IRQ_SLOT_COUNT)
if (sizeof(intel_irq_routing_table) != intel_irq_routing_table.size) {
printk_warning("Inconsistent IRQ routing table size (0x%x/0x%x)\n",
sizeof(intel_irq_routing_table),
intel_irq_routing_table.size
);
intel_irq_routing_table.size=sizeof(intel_irq_routing_table);
}
#endif
rt = &intel_irq_routing_table;
addr = (uint8_t *)rt;
sum = 0;
for (i = 0; i < rt->size; i++)
sum += addr[i];
printk_debug("%s:%6d:%s() - irq_routing_table located at: 0x%p\n",
__FILE__, __LINE__, __FUNCTION__, addr);
sum = rt->checksum - sum;
if (sum != rt->checksum) {
printk_warning("%s:%6d:%s() - "
"checksum is: 0x%02x but should be: 0x%02x\n",
__FILE__, __LINE__, __FUNCTION__, rt->checksum, sum);
rt->checksum = sum;
}
if (rt->signature != PIRQ_SIGNATURE || rt->version != PIRQ_VERSION ||
rt->size % 16 || rt->size < sizeof(struct irq_routing_table)) {
printk_warning("%s:%6d:%s() - "
"Interrupt Routing Table not valid\n",
__FILE__, __LINE__, __FUNCTION__);
return;
}
sum = 0;
for (i=0; i<rt->size; i++)
sum += addr[i];
if (sum) {
printk_warning("%s:%6d:%s() - "
"checksum error in irq routing table\n",
__FILE__, __LINE__, __FUNCTION__);
}
printk_info("done.\n");
}
int verify_copy_pirq_routing_table(unsigned long addr)
{
int i;
uint8_t *rt_orig, *rt_curr;
rt_curr = (uint8_t*)addr;
rt_orig = (uint8_t*)&intel_irq_routing_table;
printk_info("Verifing copy of IRQ routing tables at 0x%x...", addr);
for (i = 0; i < intel_irq_routing_table.size; i++) {
if (*(rt_curr + i) != *(rt_orig + i)) {
printk_info("failed\n");
return -1;
}
}
printk_info("done\n");
return 0;
}
#else
#define verify_copy_pirq_routing_table(addr)
#endif
#if HAVE_PIRQ_TABLE==1
unsigned long copy_pirq_routing_table(unsigned long addr)
{
/* Align the table to be 16 byte aligned. */
addr += 15;
addr &= ~15;
/* This table must be betweeen 0xf0000 & 0x100000 */
printk_info("Copying IRQ routing tables to 0x%x...", addr);
memcpy((void *)addr, &intel_irq_routing_table, intel_irq_routing_table.size);
printk_info("done.\n");
verify_copy_pirq_routing_table(addr);
return addr + intel_irq_routing_table.size;
}
#endif