Commit 8b533a0e authored Nov 22, 2016 by Srinivas Pandruvada Committed by Thomas Gleixner Nov 24, 2016

acpi/bus: Set _OSC for diverse core support



Set the OSC_SB_CPC_DIVERSE_HIGH_SUPPORT (bit 12) to enable diverse
core support.

This is required to enable the BIOS support of the Intel Turbo Boost Max
Technology 3.0 feature.

Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Signed-off-by: Tim Chen <tim.c.chen@linux.intel.com>
Cc: linux-pm@vger.kernel.org
Cc: peterz@infradead.org
Cc: jolsa@redhat.com
Cc: rjw@rjwysocki.net
Cc: linux-acpi@vger.kernel.org
Cc: bp@suse.de
Link: http://lkml.kernel.org/r/a023623a727e86040a1715797055f6402caefd7e.1479844244.git.tim.c.chen@linux.intel.com


Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

parent 5c2832e9

drivers/acpi/bus.c

+3 −0

Original line number	Diff line number	Diff line
		@@ -338,6 +338,9 @@ 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)))

include/linux/acpi.h

+1 −0

Original line number	Diff line number	Diff line
		@@ -469,6 +469,7 @@ 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;

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