コード例 #1
0
ファイル: chip.c プロジェクト: yuzaipiaofei/coreboot
static void soc_init(void *data)
{
	struct range_entry range;
	struct global_nvs_t *gnvs;

	/* TODO: tigten this resource range */
	/* TODO: fix for S3 resume, as this would corrupt OS memory */
	range_entry_init(&range, 0x200000, 4ULL*GiB, 0);
	fsp_silicon_init(&range);

	/* Allocate ACPI NVS in CBMEM */
	gnvs = cbmem_add(CBMEM_ID_ACPI_GNVS, sizeof(*gnvs));
}
コード例 #2
0
ファイル: romstage.c プロジェクト: nobodyweird/coreboot
asmlinkage void car_stage_entry(void)
{
	void *hob_list_ptr;
	struct range_entry fsp_mem;
	struct range_entry reg_car;

	printk(BIOS_DEBUG, "Starting romstage...\n");

	disable_watchdog();

	soc_early_romstage_init();

	/* Make sure the blob does not override our data in CAR */
	range_entry_init(&reg_car, (uintptr_t)_car_relocatable_data_end,
			(uintptr_t)_car_region_end, 0);

	if (fsp_memory_init(&hob_list_ptr, &reg_car) != FSP_SUCCESS) {
		die("FSP memory init failed. Giving up.");
	}

	fsp_find_reserved_memory(&fsp_mem, hob_list_ptr);

	/* initialize cbmem by adding FSP reserved memory first thing */
	cbmem_initialize_empty_id_size(CBMEM_ID_FSP_RESERVED_MEMORY,
					range_entry_size(&fsp_mem));

	/* make sure FSP memory is reserved in cbmem */
	if (range_entry_base(&fsp_mem) !=
		(uintptr_t)cbmem_find(CBMEM_ID_FSP_RESERVED_MEMORY))
		die("Failed to accommodate FSP reserved memory request");

	/* Now that CBMEM is up, save the list so ramstage can use it */
	fsp_save_hob_list(hob_list_ptr);

	run_ramstage();
}
コード例 #3
0
ファイル: romstage.c プロジェクト: AdriDlu/coreboot
asmlinkage void car_stage_entry(void)
{
	void *hob_list_ptr;
	const void *mrc_data;
	struct range_entry fsp_mem, reg_car;
	struct postcar_frame pcf;
	size_t  mrc_data_size;
	uintptr_t top_of_ram;
	int prev_sleep_state;
	struct romstage_handoff *handoff;
	struct chipset_power_state *ps = car_get_var_ptr(&power_state);

	timestamp_add_now(TS_START_ROMSTAGE);

	soc_early_romstage_init();
	disable_watchdog();

	console_init();

	prev_sleep_state = fill_power_state(ps);

	/* Make sure the blob does not override our data in CAR */
	range_entry_init(&reg_car, (uintptr_t)_car_relocatable_data_end,
			(uintptr_t)_car_region_end, 0);

	if (fsp_memory_init(&hob_list_ptr, &reg_car) != FSP_SUCCESS) {
		die("FSP memory init failed. Giving up.");
	}

	fsp_find_reserved_memory(&fsp_mem, hob_list_ptr);

	/* initialize cbmem by adding FSP reserved memory first thing */
	if (prev_sleep_state != SLEEP_STATE_S3) {
		cbmem_initialize_empty_id_size(CBMEM_ID_FSP_RESERVED_MEMORY,
			range_entry_size(&fsp_mem));
	} else if (cbmem_initialize_id_size(CBMEM_ID_FSP_RESERVED_MEMORY,
				range_entry_size(&fsp_mem))) {
		if (IS_ENABLED(CONFIG_HAVE_ACPI_RESUME)) {
			printk(BIOS_DEBUG, "Failed to recover CBMEM in S3 resume.\n");
			/* Failed S3 resume, reset to come up cleanly */
			hard_reset();
		}
	}

	/* make sure FSP memory is reserved in cbmem */
	if (range_entry_base(&fsp_mem) !=
		(uintptr_t)cbmem_find(CBMEM_ID_FSP_RESERVED_MEMORY))
		die("Failed to accommodate FSP reserved memory request");

	/* Now that CBMEM is up, save the list so ramstage can use it */
	fsp_save_hob_list(hob_list_ptr);

	/* Save MRC Data to CBMEM */
	if (IS_ENABLED(CONFIG_CACHE_MRC_SETTINGS) &&
	    (prev_sleep_state != SLEEP_STATE_S3))
	{
		mrc_data = fsp_find_nv_storage_data(&mrc_data_size);
		if (mrc_data && mrc_cache_stash_data(mrc_data, mrc_data_size) < 0)
			printk(BIOS_ERR, "Failed to stash MRC data\n");
	}

	/* Create romstage handof information */
	handoff = romstage_handoff_find_or_add();
	if (handoff != NULL)
		handoff->s3_resume = (prev_sleep_state == SLEEP_STATE_S3);
	else
		printk(BIOS_DEBUG, "Romstage handoff structure not added!\n");

	if (postcar_frame_init(&pcf, 1*KiB))
		die("Unable to initialize postcar frame.\n");

	/*
	 * We need to make sure ramstage will be run cached. At this point exact
	 * location of ramstage in cbmem is not known. Instruct postcar to cache
	 * 16 megs under cbmem top which is a safe bet to cover ramstage.
	 */
	top_of_ram = (uintptr_t) cbmem_top();
	/* cbmem_top() needs to be at least 16 MiB aligned */
	assert(ALIGN_DOWN(top_of_ram, 16*MiB) == top_of_ram);
	postcar_frame_add_mtrr(&pcf, top_of_ram - 16*MiB, 16*MiB, MTRR_TYPE_WRBACK);

	run_postcar_phase(&pcf);
}