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/* SPDX-License-Identifier: GPL-2.0-only */
/* This file is part of the coreboot project. */
#include <console/console.h>
#include <cpu/x86/mp.h>
#include <cpu/x86/lapic.h>
#include <cpu/intel/microcode.h>
#include <fsp/api.h>
#include <fsp/ppi/mp_service_ppi.h>
#include <intelblocks/cpulib.h>
#include <intelblocks/mp_init.h>
#define BSP_CPU_SLOT 0
static efi_return_status_t mp_get_number_of_processors(const
efi_pei_services **ignored1, efi_pei_mp_services_ppi *ignored2,
efi_uintn_t *number_of_processors,
efi_uintn_t *number_of_enabled_processors)
{
if (number_of_processors == NULL || number_of_enabled_processors ==
NULL)
return FSP_INVALID_PARAMETER;
*number_of_processors = get_cpu_count();
*number_of_enabled_processors = get_cpu_count();
return FSP_SUCCESS;
}
static efi_return_status_t mp_get_processor_info(const
efi_pei_services **ignored1, efi_pei_mp_services_ppi *ignored2,
efi_uintn_t processor_number,
efi_processor_information *processor_info_buffer)
{
if (cpu_index() < 0)
return FSP_DEVICE_ERROR;
if (processor_info_buffer == NULL)
return FSP_INVALID_PARAMETER;
if (processor_number >= get_cpu_count())
return FSP_NOT_FOUND;
processor_info_buffer->ProcessorId = lapicid();
processor_info_buffer->StatusFlag = PROCESSOR_HEALTH_STATUS_BIT
| PROCESSOR_ENABLED_BIT;
if (processor_number == BSP_CPU_SLOT)
processor_info_buffer->StatusFlag |= PROCESSOR_AS_BSP_BIT;
/* TODO: Fill EFI_CPU_PHYSICAL_LOCATION structure information */
return FSP_SUCCESS;
}
static efi_return_status_t mp_startup_all_aps(const
efi_pei_services **ignored1, efi_pei_mp_services_ppi *ignored2,
efi_ap_procedure procedure, efi_boolean_t ignored3,
efi_uintn_t timeout_usec, void *argument)
{
if (cpu_index() < 0)
return FSP_DEVICE_ERROR;
if (procedure == NULL)
return FSP_INVALID_PARAMETER;
if (mp_run_on_aps((void *)procedure, argument,
MP_RUN_ON_ALL_CPUS, timeout_usec)) {
printk(BIOS_DEBUG, "%s: Exit with Failure\n", __func__);
return FSP_NOT_STARTED;
}
return FSP_SUCCESS;
}
static efi_return_status_t mp_startup_this_ap(const
efi_pei_services **ignored1, efi_pei_mp_services_ppi *ignored2,
efi_ap_procedure procedure, efi_uintn_t processor_number,
efi_uintn_t timeout_usec, void *argument)
{
if (cpu_index() < 0)
return FSP_DEVICE_ERROR;
if (processor_number > get_cpu_count())
return FSP_NOT_FOUND;
if (processor_number == BSP_CPU_SLOT)
return FSP_INVALID_PARAMETER;
if (procedure == NULL)
return FSP_INVALID_PARAMETER;
if (mp_run_on_aps((void *)procedure, argument,
processor_number, timeout_usec)) {
printk(BIOS_DEBUG, "%s: Exit with Failure\n", __func__);
return FSP_NOT_STARTED;
}
return FSP_SUCCESS;
}
static efi_return_status_t mp_switch_bsp(const efi_pei_services **ignored1,
efi_pei_mp_services_ppi *ignored2, efi_uintn_t ignored3,
efi_boolean_t ignored4)
{
/* FSP don't need this API hence return unsupported */
return FSP_UNSUPPORTED;
}
static efi_return_status_t mp_enable_disable_ap(const
efi_pei_services **ignored1, efi_pei_mp_services_ppi *ignored2,
efi_uintn_t ignored3, efi_boolean_t ignored4, efi_uint32_t *ignored5)
{
/* FSP don't need this API hence return unsupported */
return FSP_UNSUPPORTED;
}
static efi_return_status_t mp_identify_processor(const
efi_pei_services **ignored1, efi_pei_mp_services_ppi *ignored2,
efi_uintn_t *processor_number)
{
int index;
if (processor_number == NULL)
return FSP_INVALID_PARAMETER;
index = cpu_index();
if (index < 0)
return FSP_DEVICE_ERROR;
*processor_number = index;
return FSP_SUCCESS;
}
/*
* EDK2 UEFIPKG Open Source MP Service PPI to be installed
*/
static efi_pei_mp_services_ppi mp_service_ppi = {
mp_get_number_of_processors,
mp_get_processor_info,
mp_startup_all_aps,
mp_startup_this_ap,
mp_switch_bsp,
mp_enable_disable_ap,
mp_identify_processor,
};
efi_pei_mp_services_ppi *mp_fill_ppi_services_data(void)
{
return &mp_service_ppi;
}
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