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/* SPDX-License-Identifier: GPL-2.0-or-later */
#include <arch/null_breakpoint.h>
#include <bootstate.h>
#include <console/console.h>
#include <cpu/x86/mtrr.h>
#include <fsp/util.h>
#include <mode_switch.h>
#include <timestamp.h>
#include <types.h>
struct fsp_notify_phase_data {
enum fsp_notify_phase notify_phase;
bool skip;
uint8_t post_code_before;
uint8_t post_code_after;
enum timestamp_id timestamp_before;
enum timestamp_id timestamp_after;
};
static const struct fsp_notify_phase_data notify_data[] = {
{
.notify_phase = AFTER_PCI_ENUM,
.skip = !CONFIG(USE_FSP_NOTIFY_PHASE_POST_PCI_ENUM),
.post_code_before = POSTCODE_FSP_NOTIFY_BEFORE_ENUMERATE,
.post_code_after = POSTCODE_FSP_NOTIFY_AFTER_ENUMERATE,
.timestamp_before = TS_FSP_ENUMERATE_START,
.timestamp_after = TS_FSP_ENUMERATE_END,
},
{
.notify_phase = READY_TO_BOOT,
.skip = !CONFIG(USE_FSP_NOTIFY_PHASE_READY_TO_BOOT),
.post_code_before = POSTCODE_FSP_NOTIFY_BEFORE_FINALIZE,
.post_code_after = POSTCODE_FSP_NOTIFY_AFTER_FINALIZE,
.timestamp_before = TS_FSP_FINALIZE_START,
.timestamp_after = TS_FSP_FINALIZE_END,
},
{
.notify_phase = END_OF_FIRMWARE,
.skip = !CONFIG(USE_FSP_NOTIFY_PHASE_END_OF_FIRMWARE),
.post_code_before = POSTCODE_FSP_NOTIFY_BEFORE_END_OF_FIRMWARE,
.post_code_after = POSTCODE_FSP_NOTIFY_AFTER_END_OF_FIRMWARE,
.timestamp_before = TS_FSP_END_OF_FIRMWARE_START,
.timestamp_after = TS_FSP_END_OF_FIRMWARE_END,
},
};
static const struct fsp_notify_phase_data *get_notify_phase_data(enum fsp_notify_phase phase)
{
for (size_t i = 0; i < ARRAY_SIZE(notify_data); i++) {
if (notify_data[i].notify_phase == phase)
return ¬ify_data[i];
}
die("Unknown FSP notify phase %u\n", phase);
}
static void fsp_notify(enum fsp_notify_phase phase)
{
const struct fsp_notify_phase_data *data = get_notify_phase_data(phase);
struct fsp_notify_params notify_params = { .phase = phase };
fsp_notify_fn fspnotify;
uint32_t ret;
if (data->skip) {
printk(BIOS_INFO, "coreboot skipped calling FSP notify phase: %08x.\n", phase);
return;
}
if (!fsps_hdr.notify_phase_entry_offset)
die("Notify_phase_entry_offset is zero!\n");
fspnotify = (void *)(uintptr_t)(fsps_hdr.image_base +
fsps_hdr.notify_phase_entry_offset);
fsp_before_debug_notify(fspnotify, ¬ify_params);
timestamp_add_now(data->timestamp_before);
post_code(data->post_code_before);
/* FSP disables the interrupt handler so remove debug exceptions temporarily */
null_breakpoint_disable();
if (ENV_X86_64 && CONFIG(PLATFORM_USES_FSP2_X86_32))
ret = protected_mode_call_1arg(fspnotify, (uintptr_t)¬ify_params);
else
ret = fspnotify(¬ify_params);
null_breakpoint_init();
timestamp_add_now(data->timestamp_after);
post_code(data->post_code_after);
fsp_debug_after_notify(ret);
/* Handle any errors returned by FspNotify */
fsp_handle_reset(ret);
if (ret != FSP_SUCCESS)
die("FspNotify returned with error 0x%08x!\n", ret);
/* Allow the platform to run something after FspNotify */
platform_fsp_notify_status(phase);
}
static void fsp_notify_dummy(void *arg)
{
enum fsp_notify_phase phase = (uint32_t)(uintptr_t)arg;
display_mtrrs();
fsp_notify(phase);
if (phase == READY_TO_BOOT)
fsp_notify(END_OF_FIRMWARE);
}
BOOT_STATE_INIT_ENTRY(BS_DEV_ENABLE, BS_ON_ENTRY, fsp_notify_dummy, (void *)AFTER_PCI_ENUM);
BOOT_STATE_INIT_ENTRY(BS_PAYLOAD_LOAD, BS_ON_EXIT, fsp_notify_dummy, (void *)READY_TO_BOOT);
BOOT_STATE_INIT_ENTRY(BS_OS_RESUME, BS_ON_ENTRY, fsp_notify_dummy, (void *)READY_TO_BOOT);
__weak void platform_fsp_notify_status(enum fsp_notify_phase phase)
{
}
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