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cpuid: Add helper function for cpuid(1) functions

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This patch introduces 3 helper function for cpuid(1) :

1. cpu_get_cpuid() -> to get processor id (from cpuid.eax)
2. cpu_get_feature_flags_ecx -> to get processor feature flag (from cpuid.ecx)
3. cpu_get_feature_flags_edx -> to get processor feature flag (from cpuid.edx)

Above 3 helper functions are targeted to replace majority of cpuid(1)
references.

Change-Id: Ib96a7c79dadb1feff0b8d58aa408b355fbb3bc50
Signed-off-by: Subrata Banik <subrata.banik@intel.com>
Reviewed-on: https://review.coreboot.org/c/30123
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Furquan Shaikh <furquan@google.com>
This commit is contained in:
Subrata Banik
2018-12-10 14:11:35 +05:30
parent e3110b8620
commit 53b08c347f
21 changed files with 142 additions and 86 deletions
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9
src/soc/intel/quark/romstage/report_platform.c
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@@ -67,14 +67,13 @@ static uint32_t fuse_port_read(uint32_t offset)
static void report_cpu_info(void)
{
struct cpuid_result cpuidr;
const char *cpu_type = "Unknown";
u32 d_variant;
u32 ecc_enabled;
u32 extended_temp;
u32 i;
u8 revision;
u32 secure_boot;
u32 secure_boot, cpu_id;
const char *stepping = "Unknown";
/* Determine if ECC is enabled */
@@ -94,9 +93,9 @@ static void report_cpu_info(void)
extended_temp = 0;
/* Look for string to match the CPU ID value */
cpuidr = cpuid(1);
cpu_id = cpu_get_cpuid();
for (i = 0; i < ARRAY_SIZE(cpu_table); i++) {
if ((cpu_table[i].cpuid == cpuidr.eax)
if ((cpu_table[i].cpuid == cpu_id)
&& (cpu_table[i].extended_temp == extended_temp)
&& (cpu_table[i].ecc == ecc_enabled)
&& (cpu_table[i].secure_boot == secure_boot)
@@ -118,7 +117,7 @@ static void report_cpu_info(void)
}
}
printk(BIOS_DEBUG, "CPU: ID %x:%x, %s %s Stepping\n", cpuidr.eax,
printk(BIOS_DEBUG, "CPU: ID %x:%x, %s %s Stepping\n", cpu_id,
revision, cpu_type, stepping);
}