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Commit 8b533a0e authored by Srinivas Pandruvada's avatar Srinivas Pandruvada Committed by Thomas Gleixner
Browse files

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: default avatarSrinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Signed-off-by: default avatarTim 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: default avatarThomas Gleixner <tglx@linutronix.de>
parent 5c2832e9

drivers/acpi/bus.c

+3 −0
Original line number Original line Diff line number Diff line
@@ -338,6 +338,9 @@ static void acpi_bus_osc_support(void) 
	}

	}

#endif

#endif





	if (IS_ENABLED(CONFIG_SCHED_ITMT))

		capbuf[OSC_SUPPORT_DWORD] |= OSC_SB_CPC_DIVERSE_HIGH_SUPPORT;



	if (!ghes_disable)

	if (!ghes_disable)

		capbuf[OSC_SUPPORT_DWORD] |= OSC_SB_APEI_SUPPORT;

		capbuf[OSC_SUPPORT_DWORD] |= OSC_SB_APEI_SUPPORT;

	if (ACPI_FAILURE(acpi_get_handle(NULL, "\\_SB", &handle)))

	if (ACPI_FAILURE(acpi_get_handle(NULL, "\\_SB", &handle)))

include/linux/acpi.h

+1 −0
Original line number Original line 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_CPCV2_SUPPORT			0x00000040

#define OSC_SB_PCLPI_SUPPORT			0x00000080

#define OSC_SB_PCLPI_SUPPORT			0x00000080

#define OSC_SB_OSLPI_SUPPORT			0x00000100

#define OSC_SB_OSLPI_SUPPORT			0x00000100

#define OSC_SB_CPC_DIVERSE_HIGH_SUPPORT		0x00001000





extern bool osc_sb_apei_support_acked;

extern bool osc_sb_apei_support_acked;

extern bool osc_pc_lpi_support_confirmed;

extern bool osc_pc_lpi_support_confirmed;