cpu/x86/mp_init: move printing of failure message into mp_init_with_smm

Each CPU/SoC checks the return value of the mp_init_with_smm and prints
the same error message if it wasn't successful, so move this check and
printk to mp_init_with_smm. For this the original mp_init_with_smm
function gets renamed to do_mp_init_with_smm and a new mp_init_with_smm
function is created which then calls do_mp_init_with_smm, prints the
error if it didn't return CB_SUCCESS and passes the return value of
do_mp_init_with_smm to its caller.

Since no CPU/SoC code handles a mp_init_with_smm failure apart from
printing a message, also add a comment at the mp_init_with_smm call
sites that the code might want to handle a failure.

Signed-off-by: Felix Held <felix-coreboot@felixheld.de>
Change-Id: I181602723c204f3e43eb43302921adf7a88c81ed
Reviewed-on: https://review.coreboot.org/c/coreboot/+/58498
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Raul Rangel <rrangel@chromium.org>

src/cpu/intel/haswell/haswell_init.c

@@ -642,8 +642,8 @@ static const struct mp_ops mp_ops = {
 
 void mp_init_cpus(struct bus *cpu_bus)
 {
-	if (mp_init_with_smm(cpu_bus, &mp_ops) != CB_SUCCESS)
-		printk(BIOS_ERR, "MP initialization failure.\n");
+	/* TODO: Handle mp_init_with_smm failure? */
+	mp_init_with_smm(cpu_bus, &mp_ops);
 }
 
 static struct device_operations cpu_dev_ops = {

src/cpu/intel/model_1067x/mp_init.c

@@ -98,6 +98,6 @@ static const struct mp_ops mp_ops = {
 
 void mp_init_cpus(struct bus *cpu_bus)
 {
-	if (mp_init_with_smm(cpu_bus, &mp_ops) != CB_SUCCESS)
-		printk(BIOS_ERR, "MP initialization failure.\n");
+	/* TODO: Handle mp_init_with_smm failure? */
+	mp_init_with_smm(cpu_bus, &mp_ops);
 }

src/cpu/intel/model_2065x/model_2065x_init.c

@@ -175,8 +175,8 @@ static const struct mp_ops mp_ops = {
 
 void mp_init_cpus(struct bus *cpu_bus)
 {
-	if (mp_init_with_smm(cpu_bus, &mp_ops) != CB_SUCCESS)
-		printk(BIOS_ERR, "MP initialization failure.\n");
+	/* TODO: Handle mp_init_with_smm failure? */
+	mp_init_with_smm(cpu_bus, &mp_ops);
 }
 
 static struct device_operations cpu_dev_ops = {

src/cpu/intel/model_206ax/model_206ax_init.c

@@ -431,8 +431,8 @@ static const struct mp_ops mp_ops = {
 
 void mp_init_cpus(struct bus *cpu_bus)
 {
-	if (mp_init_with_smm(cpu_bus, &mp_ops) != CB_SUCCESS)
-		printk(BIOS_ERR, "MP initialization failure.\n");
+	/* TODO: Handle mp_init_with_smm failure? */
+	mp_init_with_smm(cpu_bus, &mp_ops);
 }
 
 static struct device_operations cpu_dev_ops = {

src/cpu/x86/mp_init.c

@@ -1095,7 +1095,7 @@ static void fill_mp_state(struct mp_state *state, const struct mp_ops *ops)
 		mp_state.ops.per_cpu_smm_trigger = smm_initiate_relocation;
 }
 
-enum cb_err mp_init_with_smm(struct bus *cpu_bus, const struct mp_ops *mp_ops)
+static enum cb_err do_mp_init_with_smm(struct bus *cpu_bus, const struct mp_ops *mp_ops)
 {
 	enum cb_err ret;
 	void *default_smm_area;
@@ -1142,3 +1142,13 @@ enum cb_err mp_init_with_smm(struct bus *cpu_bus, const struct mp_ops *mp_ops)
 
 	return ret;
 }
+
+enum cb_err mp_init_with_smm(struct bus *cpu_bus, const struct mp_ops *mp_ops)
+{
+	enum cb_err ret = do_mp_init_with_smm(cpu_bus, mp_ops);
+
+	if (ret != CB_SUCCESS)
+		printk(BIOS_ERR, "MP initialization failure.\n");
+
+	return ret;
+}

src/mainboard/emulation/qemu-i440fx/northbridge.c

@@ -251,8 +251,8 @@ void mp_init_cpus(struct bus *cpu_bus)
 {
 	const struct mp_ops *ops = CONFIG(SMM_TSEG) ? &mp_ops_with_smm : &mp_ops_no_smm;
 
-	if (mp_init_with_smm(cpu_bus, ops) != CB_SUCCESS)
-		printk(BIOS_ERR, "MP initialization failure.\n");
+	/* TODO: Handle mp_init_with_smm failure? */
+	mp_init_with_smm(cpu_bus, ops);
 }
 
 static void cpu_bus_init(struct device *dev)

src/soc/amd/cezanne/cpu.c

@@ -52,8 +52,8 @@ static const struct mp_ops mp_ops = {
 void mp_init_cpus(struct bus *cpu_bus)
 {
 	/* Clear for take-off */
-	if (mp_init_with_smm(cpu_bus, &mp_ops) != CB_SUCCESS)
-		printk(BIOS_ERR, "MP initialization failure.\n");
+	/* TODO: Handle mp_init_with_smm failure? */
+	mp_init_with_smm(cpu_bus, &mp_ops);
 
 	/* pre_mp_init made the flash not cacheable. Reset to WP for performance. */
 	mtrr_use_temp_range(FLASH_BASE_ADDR, CONFIG_ROM_SIZE, MTRR_TYPE_WRPROT);

src/soc/amd/picasso/cpu.c

@@ -56,8 +56,8 @@ static const struct mp_ops mp_ops = {
 void mp_init_cpus(struct bus *cpu_bus)
 {
 	/* Clear for take-off */
-	if (mp_init_with_smm(cpu_bus, &mp_ops) != CB_SUCCESS)
-		printk(BIOS_ERR, "MP initialization failure.\n");
+	/* TODO: Handle mp_init_with_smm failure? */
+	mp_init_with_smm(cpu_bus, &mp_ops);
 
 	/* pre_mp_init made the flash not cacheable. Reset to WP for performance. */
 	mtrr_use_temp_range(FLASH_BASE_ADDR, CONFIG_ROM_SIZE, MTRR_TYPE_WRPROT);

src/soc/amd/stoneyridge/cpu.c

@@ -54,8 +54,8 @@ static const struct mp_ops mp_ops = {
 void mp_init_cpus(struct bus *cpu_bus)
 {
 	/* Clear for take-off */
-	if (mp_init_with_smm(cpu_bus, &mp_ops) != CB_SUCCESS)
-		printk(BIOS_ERR, "MP initialization failure.\n");
+	/* TODO: Handle mp_init_with_smm failure? */
+	mp_init_with_smm(cpu_bus, &mp_ops);
 
 	/* The flash is now no longer cacheable. Reset to WP for performance. */
 	mtrr_use_temp_range(FLASH_BASE_ADDR, CONFIG_ROM_SIZE, MTRR_TYPE_WRPROT);

src/soc/intel/alderlake/cpu.c

@@ -127,8 +127,8 @@ static const struct mp_ops mp_ops = {
 
 void soc_init_cpus(struct bus *cpu_bus)
 {
-	if (mp_init_with_smm(cpu_bus, &mp_ops) != CB_SUCCESS)
-		printk(BIOS_ERR, "MP initialization failure.\n");
+	/* TODO: Handle mp_init_with_smm failure? */
+	mp_init_with_smm(cpu_bus, &mp_ops);
 
 	/* Thermal throttle activation offset */
 	configure_tcc_thermal_target();

src/soc/intel/apollolake/cpu.c

@@ -251,8 +251,8 @@ static const struct mp_ops mp_ops = {
 void soc_init_cpus(struct bus *cpu_bus)
 {
 	/* Clear for take-off */
-	if (mp_init_with_smm(cpu_bus, &mp_ops) != CB_SUCCESS)
-		printk(BIOS_ERR, "MP initialization failure.\n");
+	/* TODO: Handle mp_init_with_smm failure? */
+	mp_init_with_smm(cpu_bus, &mp_ops);
 }
 
 void apollolake_init_cpus(struct device *dev)

src/soc/intel/baytrail/cpu.c

@@ -197,6 +197,6 @@ void baytrail_init_cpus(struct device *dev)
 {
 	struct bus *cpu_bus = dev->link_list;
 
-	if (mp_init_with_smm(cpu_bus, &mp_ops) != CB_SUCCESS)
-		printk(BIOS_ERR, "MP initialization failure.\n");
+	/* TODO: Handle mp_init_with_smm failure? */
+	mp_init_with_smm(cpu_bus, &mp_ops);
 }

src/soc/intel/braswell/cpu.c

@@ -206,6 +206,6 @@ void soc_init_cpus(struct device *dev)
 {
 	struct bus *cpu_bus = dev->link_list;
 
-	if (mp_init_with_smm(cpu_bus, &mp_ops) != CB_SUCCESS)
-		printk(BIOS_ERR, "MP initialization failure.\n");
+	/* TODO: Handle mp_init_with_smm failure? */
+	mp_init_with_smm(cpu_bus, &mp_ops);
 }

src/soc/intel/cannonlake/cpu.c

@@ -190,8 +190,8 @@ static const struct mp_ops mp_ops = {
 
 void soc_init_cpus(struct bus *cpu_bus)
 {
-	if (mp_init_with_smm(cpu_bus, &mp_ops) != CB_SUCCESS)
-		printk(BIOS_ERR, "MP initialization failure.\n");
+	/* TODO: Handle mp_init_with_smm failure? */
+	mp_init_with_smm(cpu_bus, &mp_ops);
 
 	/* Thermal throttle activation offset */
 	configure_tcc_thermal_target();

src/soc/intel/denverton_ns/cpu.c

@@ -297,6 +297,6 @@ void denverton_init_cpus(struct device *dev)
 		add_more_links(dev, 1);
 
 	/* Clear for take-off */
-	if (mp_init_with_smm(dev->link_list, &mp_ops) != CB_SUCCESS)
-		printk(BIOS_ERR, "MP initialization failure.\n");
+	/* TODO: Handle mp_init_with_smm failure? */
+	mp_init_with_smm(dev->link_list, &mp_ops);
 }

src/soc/intel/elkhartlake/cpu.c

@@ -118,8 +118,8 @@ static const struct mp_ops mp_ops = {
 
 void soc_init_cpus(struct bus *cpu_bus)
 {
-	if (mp_init_with_smm(cpu_bus, &mp_ops) != CB_SUCCESS)
-		printk(BIOS_ERR, "MP initialization failure.\n");
+	/* TODO: Handle mp_init_with_smm failure? */
+	mp_init_with_smm(cpu_bus, &mp_ops);
 
 	/* Thermal throttle activation offset */
 	configure_tcc_thermal_target();

src/soc/intel/icelake/cpu.c

@@ -154,6 +154,6 @@ static const struct mp_ops mp_ops = {
 
 void soc_init_cpus(struct bus *cpu_bus)
 {
-	if (mp_init_with_smm(cpu_bus, &mp_ops) != CB_SUCCESS)
-		printk(BIOS_ERR, "MP initialization failure.\n");
+	/* TODO: Handle mp_init_with_smm failure? */
+	mp_init_with_smm(cpu_bus, &mp_ops);
 }

src/soc/intel/jasperlake/cpu.c

@@ -120,8 +120,8 @@ static const struct mp_ops mp_ops = {
 
 void soc_init_cpus(struct bus *cpu_bus)
 {
-	if (mp_init_with_smm(cpu_bus, &mp_ops) != CB_SUCCESS)
-		printk(BIOS_ERR, "MP initialization failure.\n");
+	/* TODO: Handle mp_init_with_smm failure? */
+	mp_init_with_smm(cpu_bus, &mp_ops);
 
 	/* Thermal throttle activation offset */
 	configure_tcc_thermal_target();

src/soc/intel/skylake/cpu.c

@@ -215,8 +215,8 @@ static const struct mp_ops mp_ops = {
 
 void soc_init_cpus(struct bus *cpu_bus)
 {
-	if (mp_init_with_smm(cpu_bus, &mp_ops) != CB_SUCCESS)
-		printk(BIOS_ERR, "MP initialization failure.\n");
+	/* TODO: Handle mp_init_with_smm failure? */
+	mp_init_with_smm(cpu_bus, &mp_ops);
 
 	/* Thermal throttle activation offset */
 	configure_tcc_thermal_target();

src/soc/intel/tigerlake/cpu.c

@@ -126,8 +126,8 @@ static const struct mp_ops mp_ops = {
 
 void soc_init_cpus(struct bus *cpu_bus)
 {
-	if (mp_init_with_smm(cpu_bus, &mp_ops) != CB_SUCCESS)
-		printk(BIOS_ERR, "MP initialization failure.\n");
+	/* TODO: Handle mp_init_with_smm failure? */
+	mp_init_with_smm(cpu_bus, &mp_ops);
 
 	/* Thermal throttle activation offset */
 	configure_tcc_thermal_target();

src/soc/intel/xeon_sp/cpx/cpu.c

@@ -212,8 +212,8 @@ void cpx_init_cpus(struct device *dev)
 
 	intel_microcode_load_unlocked(microcode_patch);
 
-	if (mp_init_with_smm(dev->link_list, &mp_ops) != CB_SUCCESS)
-		printk(BIOS_ERR, "MP initialization failure.\n");
+	/* TODO: Handle mp_init_with_smm failure? */
+	mp_init_with_smm(dev->link_list, &mp_ops);
 
 	/*
 	 * chip_config is used in cpu device callback. Other than cpu 0,

src/soc/intel/xeon_sp/skx/cpu.c

@@ -231,8 +231,8 @@ void xeon_sp_init_cpus(struct device *dev)
 	config_reset_cpl3_csrs();
 
 	/* calls src/cpu/x86/mp_init.c */
-	if (mp_init_with_smm(dev->link_list, &mp_ops) != CB_SUCCESS)
-		printk(BIOS_ERR, "MP initialization failure.\n");
+	/* TODO: Handle mp_init_with_smm failure? */
+	mp_init_with_smm(dev->link_list, &mp_ops);
 
 	/* update numa domain for all cpu devices */
 	xeonsp_init_cpu_config();