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Message-Id: <643e350238eaff61ee5044cf555f04fc49c2c099.1477000078.git.tim.c.chen@linux.intel.com>
Date: Thu, 20 Oct 2016 15:00:02 -0700
From: Tim Chen <tim.c.chen@...ux.intel.com>
To: rjw@...ysocki.net, tglx@...utronix.de, mingo@...hat.com, bp@...e.de
Cc: Srinivas Pandruvada <srinivas.pandruvada@...ux.intel.com>,
x86@...nel.org, linux-pm@...r.kernel.org,
linux-kernel@...r.kernel.org, linux-acpi@...r.kernel.org,
peterz@...radead.org, Tim Chen <tim.c.chen@...ux.intel.com>,
jolsa@...hat.com
Subject: [PATCH v6 8/9] acpi: bus: Set _OSC for diverse core support
From: Srinivas Pandruvada <srinivas.pandruvada@...ux.intel.com>
From: Srinivas Pandruvada <srinivas.pandruvada@...ux.intel.com>
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@...ux.intel.com>
Signed-off-by: Tim Chen <tim.c.chen@...ux.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 2f381ba..806db0d 100644
--- a/drivers/acpi/bus.c
+++ b/drivers/acpi/bus.c
@@ -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)))
diff --git a/include/linux/acpi.h b/include/linux/acpi.h
index ddbeda6..f5da63e 100644
--- a/include/linux/acpi.h
+++ b/include/linux/acpi.h
@@ -468,6 +468,7 @@ 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;
--
2.5.5
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