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-rw-r--r--src/southbridge/intel/i82371eb/acpi_tables.c41
1 files changed, 41 insertions, 0 deletions
diff --git a/src/southbridge/intel/i82371eb/acpi_tables.c b/src/southbridge/intel/i82371eb/acpi_tables.c
index 2b536e6f18..2173a3d7cf 100644
--- a/src/southbridge/intel/i82371eb/acpi_tables.c
+++ b/src/southbridge/intel/i82371eb/acpi_tables.c
@@ -26,9 +26,46 @@
#include <arch/smp/mpspec.h>
#include <device/device.h>
#include <device/pci_ids.h>
+#include "i82371eb.h"
extern const unsigned char AmlCode[];
+static int determine_total_number_of_cores(void)
+{
+ device_t cpu;
+ int count = 0;
+ for(cpu = all_devices; cpu; cpu = cpu->next) {
+ if ((cpu->path.type != DEVICE_PATH_APIC) ||
+ (cpu->bus->dev->path.type != DEVICE_PATH_APIC_CLUSTER)) {
+ continue;
+ }
+ if (!cpu->enabled) {
+ continue;
+ }
+ count++;
+ }
+ return count;
+}
+
+void generate_cpu_entries(void)
+{
+ int len;
+ int len_pr;
+ int cpu, pcontrol_blk=DEFAULT_PMBASE+PCNTRL, plen=6;
+ int numcpus = determine_total_number_of_cores();
+ printk(BIOS_DEBUG, "Found %d CPU(s).\n", numcpus);
+
+ /* without the outer scope, furhter ssdt addition will end up
+ * within the processor statement */
+ len = acpigen_write_scope("\\_PR");
+ for (cpu=0; cpu < numcpus; cpu++) {
+ len_pr = acpigen_write_processor(cpu, pcontrol_blk, plen);
+ acpigen_patch_len(len_pr - 1);
+ len += len_pr;
+ }
+ acpigen_patch_len(len - 1);
+}
+
unsigned long __attribute__((weak)) acpi_fill_slit(unsigned long current)
{
// Not implemented
@@ -57,6 +94,10 @@ unsigned long __attribute__((weak)) acpi_fill_ssdt_generator(unsigned long curre
const char *oem_table_id)
{
acpigen_write_mainboard_resources("\\_SB.PCI0.MBRS", "_CRS");
+ /* generate_cpu_entries() generates weird bytecode and has to come
+ * last or else the following entries will end up inside the
+ * processor scope */
+ generate_cpu_entries();
return (unsigned long) acpigen_get_current();
}