platform/x86/amd: hfi: Set ITMT priority from ranking data

The static ranking data that is read at module load should be used
to set up the priorities for the cores relative to the performance
values.

Signed-off-by: Mario Limonciello <mario.limonciello@amd.com>
Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
Reviewed-by: Gautham R. Shenoy <gautham.shenoy@amd.com>
Acked-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Link: https://lore.kernel.org/20250609200518.3616080-12-superm1@kernel.org

diff --git a/drivers/platform/x86/amd/hfi/Kconfig b/drivers/platform/x86/amd/hfi/Kconfig
index 019638047e629b887da9e60215fbf29c29526565..fecef684802344a2b98fab5d2ff2cb1249bc67ed 100644 (file)
--- a/drivers/platform/x86/amd/hfi/Kconfig
+++ b/drivers/platform/x86/amd/hfi/Kconfig
@@ -7,6 +7,7 @@ config AMD_HFI
        bool "AMD Hetero Core Hardware Feedback Driver"
        depends on ACPI
        depends on CPU_SUP_AMD
+       depends on SCHED_MC_PRIO
        help
          Select this option to enable the AMD Heterogeneous Core Hardware
          Feedback Interface. If selected, hardware provides runtime thread

diff --git a/drivers/platform/x86/amd/hfi/hfi.c b/drivers/platform/x86/amd/hfi/hfi.c
index b0a5840b2598a13f58f98a90fb18cf026af50b19..805c03bb56079305a571a64509fa8a4786272076 100644 (file)
--- a/drivers/platform/x86/amd/hfi/hfi.c
+++ b/drivers/platform/x86/amd/hfi/hfi.c
@@ -114,6 +114,12 @@ static DEFINE_PER_CPU(struct amd_hfi_cpuinfo, amd_hfi_cpuinfo) = {.class_index =
 
 static DEFINE_MUTEX(hfi_cpuinfo_lock);
 
+static void amd_hfi_sched_itmt_work(struct work_struct *work)
+{
+       sched_set_itmt_support();
+}
+static DECLARE_WORK(sched_amd_hfi_itmt_work, amd_hfi_sched_itmt_work);
+
 static int find_cpu_index_by_apicid(unsigned int target_apicid)
 {
        int cpu_index;
@@ -238,6 +244,8 @@ static int amd_set_hfi_ipcc_score(struct amd_hfi_cpuinfo *hfi_cpuinfo, int cpu)
                WRITE_ONCE(hfi_cpuinfo->ipcc_scores[i],
                           hfi_cpuinfo->amd_hfi_classes[i].perf);
 
+       sched_set_itmt_core_prio(hfi_cpuinfo->ipcc_scores[0], cpu);
+
        return 0;
 }
 
@@ -459,6 +467,8 @@ static int amd_hfi_probe(struct platform_device *pdev)
        if (ret < 0)
                return ret;
 
+       schedule_work(&sched_amd_hfi_itmt_work);
+
        return 0;
 }