src: use mca_clear_status function instead of open coding

Change-Id: I53413b4051b79d7c2f24b1191ce877155e654400
Signed-off-by: Felix Held <felix-coreboot@felixheld.de>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/56259
Reviewed-by: Raul Rangel <rrangel@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>

src/cpu/amd/agesa/family14/model_14_init.c

@@ -15,9 +15,7 @@
 
 static void model_14_init(struct device *dev)
 {
-	u8 i;
 	msr_t msr;
-	unsigned int num_banks;
 	int msrno;
 #if CONFIG(LOGICAL_CPUS)
 	u32 siblings;
@@ -59,11 +57,7 @@ static void model_14_init(struct device *dev)
 	x86_enable_cache();
 
 	/* zero the machine check error status registers */
-	num_banks = mca_get_bank_count();
+	mca_clear_status();
-	msr.lo = 0;
-	msr.hi = 0;
-	for (i = 0; i < num_banks; i++)
-		wrmsr(IA32_MC_STATUS(i), msr);
 
 	/* Enable the local CPU APICs */
 	setup_lapic();

src/cpu/amd/agesa/family15tn/model_15_init.c

@@ -18,9 +18,7 @@ static void model_15_init(struct device *dev)
 {
 	printk(BIOS_DEBUG, "Model 15 Init.\n");
 
-	u8 i;
 	msr_t msr;
-	unsigned int num_banks;
 	int msrno;
 	unsigned int cpu_idx;
 #if CONFIG(LOGICAL_CPUS)
@@ -58,11 +56,7 @@ static void model_15_init(struct device *dev)
 	x86_enable_cache();
 
 	/* zero the machine check error status registers */
-	num_banks = mca_get_bank_count();
+	mca_clear_status();
-	msr.lo = 0;
-	msr.hi = 0;
-	for (i = 0; i < num_banks; i++)
-		wrmsr(IA32_MC_STATUS(i), msr);
 
 	/* Enable the local CPU APICs */
 	setup_lapic();

src/cpu/amd/agesa/family16kb/model_16_init.c

@@ -17,9 +17,7 @@ static void model_16_init(struct device *dev)
 {
 	printk(BIOS_DEBUG, "Model 16 Init.\n");
 
-	u8 i;
 	msr_t msr;
-	unsigned int num_banks;
 	int msrno;
 #if CONFIG(LOGICAL_CPUS)
 	u32 siblings;
@@ -56,11 +54,7 @@ static void model_16_init(struct device *dev)
 	x86_enable_cache();
 
 	/* zero the machine check error status registers */
-	num_banks = mca_get_bank_count();
+	mca_clear_status();
-	msr.lo = 0;
-	msr.hi = 0;
-	for (i = 0; i < num_banks; i++)
-		wrmsr(IA32_MC_STATUS(i), msr);
 
 	/* Enable the local CPU APICs */
 	setup_lapic();

src/cpu/amd/pi/00730F01/model_16_init.c

@@ -20,9 +20,7 @@ static void model_16_init(struct device *dev)
 {
 	printk(BIOS_DEBUG, "Model 16 Init.\n");
 
-	u8 i;
 	msr_t msr;
-	unsigned int num_banks;
 	u32 siblings;
 
 	/*
@@ -41,11 +39,7 @@ static void model_16_init(struct device *dev)
 	x86_mtrr_check();
 
 	/* zero the machine check error status registers */
-	num_banks = mca_get_bank_count();
+	mca_clear_status();
-	msr.lo = 0;
-	msr.hi = 0;
-	for (i = 0; i < num_banks; i++)
-		wrmsr(IA32_MC_STATUS(i), msr);
 
 	/* Enable the local CPU APICs */
 	setup_lapic();

src/cpu/intel/haswell/haswell_init.c

@@ -527,12 +527,10 @@ static void configure_mca(void)
 	for (i = 0; i < num_banks; i++)
 		wrmsr(IA32_MC_CTL(i), msr);
 
-	msr.lo = msr.hi = 0;
 	/* TODO(adurbin): This should only be done on a cold boot. Also, some
 	 * of these banks are core vs package scope. For now every CPU clears
 	 * every bank. */
-	for (i = 0; i < num_banks; i++)
+	mca_clear_status();
-		wrmsr(IA32_MC_STATUS(i), msr);
 }
 
 /* All CPUs including BSP will run the following function. */

src/cpu/intel/model_2065x/model_2065x_init.c

@@ -73,24 +73,13 @@ static void set_max_ratio(void)
 	       ((perf_ctl.lo >> 8) & 0xff) * IRONLAKE_BCLK);
 }
 
-static void configure_mca(void)
-{
-	msr_t msr;
-	int i;
-	const unsigned int num_banks = mca_get_bank_count();
-
-	msr.lo = msr.hi = 0;
-	/* This should only be done on a cold boot */
-	for (i = 0; i < num_banks; i++)
-		wrmsr(IA32_MC_STATUS(i), msr);
-}
-
 static void model_2065x_init(struct device *cpu)
 {
 	char processor_name[49];
 
 	/* Clear out pending MCEs */
-	configure_mca();
+	/* This should only be done on a cold boot */
+	mca_clear_status();
 
 	/* Print processor name */
 	fill_processor_name(processor_name);

src/cpu/intel/model_206ax/model_206ax_init.c

@@ -297,18 +297,6 @@ unsigned int smbios_processor_external_clock(void)
 	return SANDYBRIDGE_BCLK;
 }
 
-static void configure_mca(void)
-{
-	msr_t msr;
-	int i;
-	const unsigned int num_banks = mca_get_bank_count();
-
-	msr.lo = msr.hi = 0;
-	/* This should only be done on a cold boot */
-	for (i = 0; i < num_banks; i++)
-		wrmsr(IA32_MC_STATUS(i), msr);
-}
-
 static void model_206ax_report(void)
 {
 	static const char *const mode[] = {"NOT ", ""};
@@ -340,7 +328,8 @@ static void model_206ax_init(struct device *cpu)
 {
 
 	/* Clear out pending MCEs */
-	configure_mca();
+	/* This should only be done on a cold boot */
+	mca_clear_status();
 
 	/* Print infos */
 	model_206ax_report();

src/soc/amd/stoneyridge/mca.c

@@ -186,18 +186,8 @@ static void mca_check_all_banks(void)
 	}
 }
 
-static void mca_clear_errors(void)
-{
-	const unsigned int num_banks = mca_get_bank_count();
-	const msr_t msr = {.lo = 0, .hi = 0};
-
-	/* Zero all machine check error status registers */
-	for (unsigned int i = 0 ; i < num_banks ; i++)
-		wrmsr(IA32_MC_STATUS(i), msr);
-}
-
 void check_mca(void)
 {
 	mca_check_all_banks();
-	mca_clear_errors();
+	mca_clear_status();
 }

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

@@ -336,17 +336,14 @@ uint32_t cpu_get_max_turbo_ratio(void)
 
 void mca_configure(void)
 {
-	msr_t msr;
 	int i;
 	const unsigned int num_banks = mca_get_bank_count();
 
 	printk(BIOS_DEBUG, "Clearing out pending MCEs\n");
 
-	msr.lo = msr.hi = 0;
+	mca_clear_status();
 
 	for (i = 0; i < num_banks; i++) {
-		/* Clear the machine check status */
-		wrmsr(IA32_MC_STATUS(i), msr);
 		/* Initialize machine checks */
 		wrmsr(IA32_MC_CTL(i),
 			(msr_t) {.lo = 0xffffffff, .hi = 0xffffffff});