[PATCH v4 09/10] acpi: bus: Set _OSC for diverse core support
From: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Date: 2016-09-21 19:19:52
Also in:
linux-acpi, lkml
Subsystem:
acpi, the rest · Maintainers:
"Rafael J. Wysocki", Linus Torvalds
Set the OSC_SB_CPC_DIVERSE_HIGH_SUPPORT (bit 12) to enable diverse core support. This is required to inform BIOS the support of Intel Turbo Boost Max Technology 3.0 feature. Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com> --- drivers/acpi/bus.c | 3 +++ include/linux/acpi.h | 1 + 2 files changed, 4 insertions(+)
diff --git a/drivers/acpi/bus.c b/drivers/acpi/bus.c
index 61643a5..8ab6ec2 100644
--- a/drivers/acpi/bus.c
+++ b/drivers/acpi/bus.c@@ -337,6 +337,9 @@ static void acpi_bus_osc_support(void) } #endif + if (IS_ENABLED(CONFIG_SCHED_ITMT)) + capbuf[OSC_SUPPORT_DWORD] |= OSC_SB_CPC_DIVERSE_HIGH_SUPPORT; + if (!ghes_disable) capbuf[OSC_SUPPORT_DWORD] |= OSC_SB_APEI_SUPPORT; if (ACPI_FAILURE(acpi_get_handle(NULL, "\\_SB", &handle)))
diff --git a/include/linux/acpi.h b/include/linux/acpi.h
index e746552..53841a2 100644
--- a/include/linux/acpi.h
+++ b/include/linux/acpi.h@@ -462,6 +462,7 @@ acpi_status acpi_run_osc(acpi_handle handle, struct acpi_osc_context *context); #define OSC_SB_CPCV2_SUPPORT 0x00000040 #define OSC_SB_PCLPI_SUPPORT 0x00000080 #define OSC_SB_OSLPI_SUPPORT 0x00000100 +#define OSC_SB_CPC_DIVERSE_HIGH_SUPPORT 0x00001000 extern bool osc_sb_apei_support_acked; extern bool osc_pc_lpi_support_confirmed;
--
2.7.4