src/southbridge/intel/i82371eb/acpi_tables.c

   1 /* SPDX-License-Identifier: GPL-2.0-only */
   2
   3 #include <console/console.h>
   4 #include <acpi/acpi.h>
   5 #include <acpi/acpigen.h>
   6 #include <device/device.h>
   7 #include "i82371eb.h"
   8
   9 static void generate_cpu_entry(int cpu)
  10 {
  11         acpigen_write_processor_device(cpu);
  12
  13         /* bit 1:3 in PCNTRL reg (pmbase+0x10) */
  14         acpigen_write_PTC(3, 1, DEFAULT_PMBASE + PCNTRL);
  15
  16         acpigen_write_processor_device_end();
  17 }
  18
  19 void generate_cpu_entries(const struct device *device)
  20 {
  21         int cpu;
  22         int numcpus = dev_count_cpu();
  23
  24         printk(BIOS_DEBUG, "Found %d CPU(s).\n", numcpus);
  25
  26         /* without the outer scope, further ssdt addition will end up
  27          * within the processor statement */
  28         acpigen_write_scope("\\_SB");
  29
  30         for (cpu = 0; cpu < numcpus; cpu++)
  31                 generate_cpu_entry(cpu);
  32
  33         acpigen_pop_len();
  34 }