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/* SPDX-License-Identifier: GPL-2.0-or-later */
#include <console/console.h>
#include <fsp/util.h>
#include <lib.h>
#define TIMESTAMP_TO_MICRO(x) ((x) / 1000ull)
static const uint8_t fpdt_guid[16] = {
0xfd, 0x7b, 0x38, 0x3b, 0xbc, 0x7a, 0xf2, 0x4c,
0xa0, 0xca, 0xb6, 0xa1, 0x6c, 0x1b, 0x1b, 0x25,
};
enum fpdt_record_type {
FPDT_GUID_EVENT = 0x1010,
FPDT_STRING_EVENT = 0x1011,
};
struct perf_record_hdr {
uint16_t type;
uint8_t length;
uint8_t revision;
} __packed;
struct generic_event_record {
struct perf_record_hdr header;
uint16_t progress_id;
uint32_t apic_id;
uint64_t timestamp;
uint8_t guid[16];
uint8_t string[];
} __packed;
/*
* Performance HOB:
* GUID - fpdt_guid;
* Data - FPDT_PEI_EXT_PERF_HEADER one or more FPDT records
*/
struct fpdt_pei_ext_perf_header {
uint32_t table_size;
uint32_t load_image_count;
uint32_t hob_is_full;
} __packed;
static void print_guid_record(const struct generic_event_record *rec)
{
printk(BIOS_INFO, "%5x\t%16llu\t\t", rec->progress_id, TIMESTAMP_TO_MICRO(rec->timestamp));
fsp_print_guid(BIOS_INFO, rec->guid);
printk(BIOS_INFO, "\n");
}
static void print_string_record(const struct generic_event_record *rec)
{
size_t str_len = rec->header.length - offsetof(struct generic_event_record, string);
printk(BIOS_INFO, "%5x\t%16llu\t\t%*s/",
rec->progress_id, TIMESTAMP_TO_MICRO(rec->timestamp), (int)str_len, rec->string);
fsp_print_guid(BIOS_INFO, rec->guid);
printk(BIOS_INFO, "\n");
}
static void print_fsp_perf_timestamp(const struct generic_event_record *rec)
{
switch (rec->header.type) {
case FPDT_GUID_EVENT:
print_guid_record(rec);
break;
case FPDT_STRING_EVENT:
print_string_record(rec);
break;
default:
printk(BIOS_INFO, "Unhandled Event Type 0x%x\n", rec->header.type);
break;
}
}
static void print_fsp_timestamp_header(void)
{
printk(BIOS_INFO, "+---------------------------------------------------+\n");
printk(BIOS_INFO, "|------ FSP Performance Timestamp Table Dump -------|\n");
printk(BIOS_INFO, "+---------------------------------------------------+\n");
printk(BIOS_INFO, "| Perf-ID\tTimestamp(us)\t\tString/GUID |\n");
printk(BIOS_INFO, "+---------------------------------------------------+\n");
}
void fsp_display_timestamp(void)
{
size_t size;
const struct fpdt_pei_ext_perf_header *hdr = fsp_find_extension_hob_by_guid(fpdt_guid,
&size);
if (!hdr || !size) {
printk(BIOS_INFO, "FPDT Extended Firmware Performance HOB Not Found!\n"
"Check if PcdFspPerformanceEnable is set to `TRUE` inside FSP package\n");
return;
}
const struct generic_event_record *rec = (const struct generic_event_record *)(
(uint8_t *)hdr + sizeof(struct fpdt_pei_ext_perf_header));
print_fsp_timestamp_header();
for (size_t i = 0; i < hdr->table_size;) {
print_fsp_perf_timestamp(rec);
i += rec->header.length;
rec = (const struct generic_event_record *)((uint8_t *)rec +
rec->header.length);
}
}
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