From 216fe0d7680b2503e09edd1d7dca73305806591c Mon Sep 17 00:00:00 2001 From: Mario Limonciello Date: Mon, 9 Jun 2025 15:05:16 -0500 Subject: [PATCH] platform/x86/amd: hfi: Set ITMT priority from ranking data MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit 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 Signed-off-by: Borislav Petkov (AMD) Reviewed-by: Gautham R. Shenoy Acked-by: Ilpo Järvinen Link: https://lore.kernel.org/20250609200518.3616080-12-superm1@kernel.org --- drivers/platform/x86/amd/hfi/Kconfig | 1 + drivers/platform/x86/amd/hfi/hfi.c | 10 ++++++++++ 2 files changed, 11 insertions(+) diff --git a/drivers/platform/x86/amd/hfi/Kconfig b/drivers/platform/x86/amd/hfi/Kconfig index 019638047e629..fecef68480234 100644 --- 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 b0a5840b2598a..805c03bb56079 100644 --- 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; } -- 2.47.2