| Message ID | 20241104175407.19546-12-mario.limonciello@amd.com (mailing list archive) |
|---|---|
| State | New |
| Headers | show |
| Series | Add support for AMD hardware feedback interface | expand |
On Mon, Nov 04, 2024 at 11:54:06AM -0600, Mario Limonciello wrote: > 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> Looks good to me. Reviewed-by: Gautham R. Shenoy <gautham.shenoy@amd.com> -- Thanks and Regards gautham. > --- > 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 79e3b0073275c..5b7c2865f4aa9 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 classification guidance to the operating system > diff --git a/drivers/platform/x86/amd/hfi/hfi.c b/drivers/platform/x86/amd/hfi/hfi.c > index cef6aa84bd85e..09905a354efdd 100644 > --- a/drivers/platform/x86/amd/hfi/hfi.c > +++ b/drivers/platform/x86/amd/hfi/hfi.c > @@ -115,6 +115,12 @@ 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; > @@ -234,6 +240,8 @@ 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; > } > > @@ -453,6 +461,8 @@ static int amd_hfi_probe(struct platform_device *pdev) > if (ret < 0) > return ret; > > + schedule_work(&sched_amd_hfi_itmt_work); > + > return 0; > } > > -- > 2.43.0 >
diff --git a/drivers/platform/x86/amd/hfi/Kconfig b/drivers/platform/x86/amd/hfi/Kconfig index 79e3b0073275c..5b7c2865f4aa9 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 classification guidance to the operating system diff --git a/drivers/platform/x86/amd/hfi/hfi.c b/drivers/platform/x86/amd/hfi/hfi.c index cef6aa84bd85e..09905a354efdd 100644 --- a/drivers/platform/x86/amd/hfi/hfi.c +++ b/drivers/platform/x86/amd/hfi/hfi.c @@ -115,6 +115,12 @@ 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; @@ -234,6 +240,8 @@ 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; } @@ -453,6 +461,8 @@ static int amd_hfi_probe(struct platform_device *pdev) if (ret < 0) return ret; + schedule_work(&sched_amd_hfi_itmt_work); + return 0; }
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> --- drivers/platform/x86/amd/hfi/Kconfig | 1 + drivers/platform/x86/amd/hfi/hfi.c | 10 ++++++++++ 2 files changed, 11 insertions(+)