[RFC PATCH 4/4] cpufreq: acpi-cpufreq: Use identifiers for AMD processor family

Punit Agrawal
2020-11-25T14:49:35Z

Replace the raw values for AMD processor family with recently
introduced identifier macros to improve code readability and
maintainability.

Signed-off-by: Punit Agrawal <punitagrawal@gmail.com>
---
drivers/cpufreq/acpi-cpufreq.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/cpufreq/acpi-cpufreq.c b/drivers/cpufreq/acpi-cpufreq.c
index 29f1cd93541e..d8b8300ae9e0 100644
--- a/drivers/cpufreq/acpi-cpufreq.c
+++ b/drivers/cpufreq/acpi-cpufreq.c
@@ -202,8 +202,8 @@ static int override_acpi_psd(unsigned int cpu_id)
* CPU's before Zen3 (except some Zen2) need the
* override.
*/
- return (c->x86 < 0x19) &&
- !(c->x86 == 0x17 && c->x86_model == 0x60 &&
+ return (c->x86 < AMD_FAM_ZEN3) &&
+ !(c->x86 == AMD_FAM_ZEN && c->x86_model == 0x60 &&
c->x86_stepping == 0x1);
}

@@ -735,7 +735,7 @@ static int acpi_cpufreq_cpu_init(struct cpufreq_policy *policy)
switch (perf->control_register.space_id) {
case ACPI_ADR_SPACE_SYSTEM_IO:
if (boot_cpu_data.x86_vendor == X86_VENDOR_AMD &&
- boot_cpu_data.x86 == 0xf) {
+ boot_cpu_data.x86 == AMD_FAM_K8) {
pr_debug("AMD K8 systems must use native drivers.\n");
result = -ENODEV;
goto err_unreg;
--
2.29.2