intel/common/mp_init: Refactor MP Init code to get rid of microcode param

Remove passing microcode patch pointer as param while calling
 - soc_core_init()
 - soc_init_cpus()

Also change callbacks in apollolake/geminilake and skylake/kabylake
common code to reflect the same function signature.

Change-Id: Ib03bb4a3063d243d97b132e0dc288ef3868a5a7b
Signed-off-by: Pratik Prajapati <pratikkumar.v.prajapati@intel.com>
Reviewed-on: https://review.coreboot.org/21010
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>

src/soc/intel/apollolake/cpu.c

@@ -60,7 +60,7 @@ static const struct reg_script core_msr_script[] = {
 	REG_SCRIPT_END
 };
 
-void soc_core_init(device_t cpu, const void *microcode)
+void soc_core_init(device_t cpu)
 {
 	/* Set core MSRs */
 	reg_script_run(core_msr_script);
@@ -75,7 +75,7 @@ void soc_core_init(device_t cpu, const void *microcode)
 #if !IS_ENABLED(CONFIG_SOC_INTEL_COMMON_BLOCK_CPU_MPINIT)
 static void soc_init_core(device_t cpu)
 {
-	soc_core_init(cpu, NULL);
+	soc_core_init(cpu);
 }
 
 static struct device_operations cpu_dev_ops = {
@@ -223,7 +223,7 @@ static const struct mp_ops mp_ops = {
 	.post_mp_init = smm_southbridge_enable,
 };
 
-void soc_init_cpus(struct bus *cpu_bus, const void *microcode)
+void soc_init_cpus(struct bus *cpu_bus)
 {
 	/* Clear for take-off */
 	if (mp_init_with_smm(cpu_bus, &mp_ops))
@@ -234,7 +234,7 @@ void apollolake_init_cpus(struct device *dev)
 {
 	if (IS_ENABLED(CONFIG_SOC_INTEL_COMMON_BLOCK_CPU_MPINIT))
 		return;
-	soc_init_cpus(dev->link_list, NULL);
+	soc_init_cpus(dev->link_list);
 
 	/* Temporarily cache the memory-mapped boot media. */
 	if (IS_ENABLED(CONFIG_BOOT_DEVICE_MEMORY_MAPPED) &&

src/soc/intel/common/block/cpu/mp_init.c

@@ -30,20 +30,19 @@
 static const void *microcode_patch;
 
 /* SoC override function */
-__attribute__((weak)) void soc_core_init(device_t dev, const void *microcode)
+__attribute__((weak)) void soc_core_init(device_t dev)
 {
 	/* no-op */
 }
 
-__attribute__((weak)) void soc_init_cpus(struct bus *cpu_bus,
-				const void *microcode)
+__attribute__((weak)) void soc_init_cpus(struct bus *cpu_bus)
 {
 	/* no-op */
 }
 
-static  void init_one_cpu(device_t dev)
+static void init_one_cpu(device_t dev)
 {
-	soc_core_init(dev, microcode_patch);
+	soc_core_init(dev);
 	intel_microcode_load_unlocked(microcode_patch);
 }
 
@@ -125,19 +124,7 @@ static void init_cpus(void *unused)
 	microcode_patch = intel_microcode_find();
 	intel_microcode_load_unlocked(microcode_patch);
 
-	/*
-	 * TODO: This parameter "microcode_patch" should be removed
-	 * in this function call once the following two cases are resolved -
-	 *
-	 * 1) SGX enabling for the BSP issue gets solved, due to which
-	 * configure_sgx() function is kept inside soc/cpu.c soc_init_cpus().
-	 * 2) uCode loading after SMM relocation is deleted inside
-	 * per_cpu_smm_trigger() mp_ops callback function in soc/cpu.c,
-	 * since as per current BWG, uCode loading can be done after
-	 * all feature programmings are done. There is no specific
-	 * recommendation to do it after SMM Relocation.
-	 */
-	soc_init_cpus(dev->link_list, microcode_patch);
+	soc_init_cpus(dev->link_list);
 }
 
 /* Ensure to re-program all MTRRs based on DRAM resource settings */

src/soc/intel/common/block/include/intelblocks/mp_init.h

@@ -70,7 +70,7 @@ void get_microcode_info(const void **microcode, int *parallel);
  * In this function SOC must perform CPU feature programming
  * during Ramstage phase.
  */
-void soc_core_init(device_t dev, const void *microcode);
+void soc_core_init(device_t dev);
 
 /*
  * In this function SOC must fill required mp_ops params, also it
@@ -80,6 +80,6 @@ void soc_core_init(device_t dev, const void *microcode);
  * Also, if there is any other SOC specific functionalities to be
  * implemented before or after MP Init, it can be done here.
  */
-void soc_init_cpus(struct bus *cpu_bus, const void *microcode);
+void soc_init_cpus(struct bus *cpu_bus);
 
 #endif	/* SOC_INTEL_COMMON_BLOCK_MP_INIT_H */

src/soc/intel/skylake/cpu.c

@@ -407,7 +407,7 @@ static void enable_pm_timer_emulation(void)
 }
 
 /* All CPUs including BSP will run the following function. */
-void soc_core_init(device_t cpu, const void *microcode)
+void soc_core_init(device_t cpu)
 {
 	/* Clear out pending MCEs */
 	configure_mca();
@@ -491,7 +491,7 @@ static const struct mp_ops mp_ops = {
 	.post_mp_init = post_mp_init,
 };
 
-void soc_init_cpus(struct bus *cpu_bus, const void *microcode)
+void soc_init_cpus(struct bus *cpu_bus)
 {
 	if (mp_init_with_smm(cpu_bus, &mp_ops))
 		printk(BIOS_ERR, "MP initialization failure.\n");