[SRU][jammy:linux][PATCH] cpufreq: intel_pstate: Enable HWP IO boost for all servers

[Philip Cox]

From: Srinivas Pandruvada <srinivas.pandruvada at linux.intel.com>

BugLink: https://bugs.launchpad.net/bugs/2052817

The HWP IO boost results in slight improvements for IO performance on
both Ice Lake and Sapphire Rapid servers.

Currently there is a CPU model check for Skylake desktop and server along
with the ACPI PM profile for performance and enterprise servers to enable
IO boost.

Remove the CPU model check, so that all current server models enable HWP
IO boost by default.

Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada at linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki at intel.com>
(cherry picked from commit 1f5e62f5fb217f2c1e003236be7d03cf606c26c4)
Signed-off-by: Philip Cox <philip.cox at canonical.com>
---
 drivers/cpufreq/intel_pstate.c | 11 +----------
 1 file changed, 1 insertion(+), 10 deletions(-)

diff --git a/drivers/cpufreq/intel_pstate.c b/drivers/cpufreq/intel_pstate.c
index 7cd614a803a1..c54c1fcfb7a5 100644
--- a/drivers/cpufreq/intel_pstate.c
+++ b/drivers/cpufreq/intel_pstate.c
@@ -2281,12 +2281,6 @@ static const struct x86_cpu_id intel_pstate_cpu_ee_disable_ids[] = {
 	{}
 };
 
-static const struct x86_cpu_id intel_pstate_hwp_boost_ids[] = {
-	X86_MATCH(SKYLAKE_X,		core_funcs),
-	X86_MATCH(SKYLAKE,		core_funcs),
-	{}
-};
-
 static int intel_pstate_init_cpu(unsigned int cpunum)
 {
 	struct cpudata *cpu;
@@ -2305,12 +2299,9 @@ static int intel_pstate_init_cpu(unsigned int cpunum)
 		cpu->epp_default = -EINVAL;
 
 		if (hwp_active) {
-			const struct x86_cpu_id *id;
-
 			intel_pstate_hwp_enable(cpu);
 
-			id = x86_match_cpu(intel_pstate_hwp_boost_ids);
-			if (id && intel_pstate_acpi_pm_profile_server())
+			if (intel_pstate_acpi_pm_profile_server())
 				hwp_boost = true;
 		}
 	} else if (hwp_active) {
-- 
2.34.1