cbmem.h: Drop cbmem_possible_online in favor of ENV_HAS_CBMEM

The macro ENV_HAS_CBMEM achieves the same as this inline function.

Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Change-Id: I6d65ca51c863abe2106f794398ddd7d7d9ac4b5e
Reviewed-on: https://review.coreboot.org/c/coreboot/+/77166
Reviewed-by: Yu-Ping Wu <yupingso@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Jakub Czapiga <czapiga@google.com>

src/drivers/vpd/vpd.c

@@ -94,7 +94,7 @@ fail:
 
 static int init_vpd_rdevs_from_cbmem(void)
 {
-	if (!cbmem_possibly_online())
+	if (!ENV_HAS_CBMEM)
 		return -1;
 
 	struct vpd_cbmem *cbmem = cbmem_find(CBMEM_ID_VPD);

src/include/cbmem.h

@@ -136,28 +136,12 @@ void cbmem_add_records_to_cbtable(struct lb_header *header);
 #define CBMEM_READY_HOOK_EARLY(x)	_CBMEM_INIT_HOOK_UNUSED(x)
 #endif
 
-/*
- * Returns 0 for the stages where we know that cbmem does not come online.
- * Even if this function returns 1 for romstage, depending upon the point in
- * bootup, cbmem might not actually be online.
- */
-static inline int cbmem_possibly_online(void)
-{
-	if (ENV_BOOTBLOCK)
-		return 0;
-
-	if (ENV_SEPARATE_VERSTAGE && !CONFIG(VBOOT_STARTS_IN_ROMSTAGE))
-		return 0;
-
-	return 1;
-}
-
 /* Returns 1 after running cbmem init hooks, 0 otherwise. */
 static inline int cbmem_online(void)
 {
 	extern int cbmem_initialized;
 
-	if (!cbmem_possibly_online())
+	if (!ENV_HAS_CBMEM)
 		return 0;
 
 	return cbmem_initialized;

src/lib/cbfs.c

@@ -618,7 +618,7 @@ void cbfs_boot_device_find_mcache(struct cbfs_boot_device *cbd, uint32_t id)
 		return;
 
 	const struct cbmem_entry *entry;
-	if (cbmem_possibly_online() &&
+	if (ENV_HAS_CBMEM &&
 	    (entry = cbmem_entry_find(id))) {
 		cbd->mcache = cbmem_entry_start(entry);
 		cbd->mcache_size = cbmem_entry_size(entry);

src/security/tpm/tspi/crtm.c

@@ -161,8 +161,7 @@ void *tpm_log_init(void)
 
 	/* We are dealing here with pre CBMEM environment.
 	 * If cbmem isn't available use CAR or SRAM */
-	if (!cbmem_possibly_online() &&
+	if (!ENV_HAS_CBMEM && !CONFIG(VBOOT_RETURN_FROM_VERSTAGE))
-		!CONFIG(VBOOT_RETURN_FROM_VERSTAGE))
 		return _tpm_log;
 	else if (ENV_CREATES_CBMEM
 		 && !CONFIG(VBOOT_RETURN_FROM_VERSTAGE)) {

src/security/tpm/tspi/log-tpm1.c

@@ -20,7 +20,7 @@ void *tpm1_log_cbmem_init(void)
 	if (tclt)
 		return tclt;
 
-	if (cbmem_possibly_online()) {
+	if (ENV_HAS_CBMEM) {
 		size_t tpm_log_len;
 		struct spec_id_event_data *hdr;
 

src/security/tpm/tspi/log-tpm2.c

@@ -45,7 +45,7 @@ void *tpm2_log_cbmem_init(void)
 	if (tclt)
 		return tclt;
 
-	if (cbmem_possibly_online()) {
+	if (ENV_HAS_CBMEM) {
 		size_t tpm_log_len;
 		struct tcg_efi_spec_id_event *hdr;
 

src/security/tpm/tspi/log.c

@@ -15,7 +15,7 @@ void *tpm_cb_log_cbmem_init(void)
 	if (tclt)
 		return tclt;
 
-	if (cbmem_possibly_online()) {
+	if (ENV_HAS_CBMEM) {
 		tclt = cbmem_find(CBMEM_ID_TPM_CB_LOG);
 		if (!tclt) {
 			size_t tpm_log_len = sizeof(struct tpm_cb_log_table) +

src/security/vboot/common.c

@@ -14,7 +14,7 @@ static void *vboot_get_workbuf(void)
 {
 	void *wb = NULL;
 
-	if (cbmem_possibly_online())
+	if (ENV_HAS_CBMEM)
 		wb = cbmem_find(CBMEM_ID_VBOOT_WORKBUF);
 
 	if (!wb && !CONFIG(VBOOT_STARTS_IN_ROMSTAGE) && preram_symbols_available())

src/soc/intel/common/block/pmc/pmclib.c

@@ -64,7 +64,7 @@ struct chipset_power_state *pmc_get_power_state(void)
 {
 	struct chipset_power_state *ptr = NULL;
 
-	if (cbmem_possibly_online())
+	if (ENV_HAS_CBMEM)
 		ptr = acpi_get_pm_state();
 
 	/* cbmem is online but ptr is not populated yet */