From: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
To: rjw@rjwysocki.net, tglx@linutronix.de, mingo@redhat.com, bp@suse.de
Cc: x86@kernel.org, linux-pm@vger.kernel.org,
linux-kernel@vger.kernel.org, linux-acpi@vger.kernel.org,
peterz@infradead.org, tim.c.chen@linux.intel.com,
jolsa@redhat.com,
Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Subject: [PATCH v5 8/9] acpi: bus: Set _OSC for diverse core support
Date: Sat, 1 Oct 2016 04:45:25 -0700 [thread overview]
Message-ID: <1475322326-160112-9-git-send-email-srinivas.pandruvada@linux.intel.com> (raw)
In-Reply-To: <1475322326-160112-1-git-send-email-srinivas.pandruvada@linux.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@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
next prev parent reply other threads:[~2016-10-01 11:46 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-10-01 11:45 [PATCH v5 0/9] Support Intel® Turbo Boost Max Technology 3.0 Srinivas Pandruvada
2016-10-01 11:45 ` [PATCH v5 1/9] sched: Extend scheduler's asym packing Srinivas Pandruvada
2016-10-01 16:38 ` Nilay Vaish
2016-10-03 16:49 ` Tim Chen
2016-10-01 11:45 ` [PATCH v5 2/9] x86/topology: Provide topology_num_packages() Srinivas Pandruvada
2016-10-01 11:45 ` [PATCH v5 3/9] x86/topology: Define x86's arch_update_cpu_topology Srinivas Pandruvada
2016-10-01 11:45 ` [PATCH v5 4/9] x86: Enable Intel Turbo Boost Max Technology 3.0 Srinivas Pandruvada
2016-10-05 14:23 ` Thomas Gleixner
2016-10-05 16:05 ` Tim Chen
2016-10-01 11:45 ` [PATCH v5 5/9] x86/sysctl: Add sysctl for ITMT scheduling feature Srinivas Pandruvada
2016-10-05 14:35 ` Thomas Gleixner
2016-10-05 16:24 ` Tim Chen
2016-10-06 11:13 ` Thomas Gleixner
2016-10-06 17:37 ` Tim Chen
2016-10-12 16:50 ` Tim Chen
2016-10-01 11:45 ` [PATCH v5 6/9] x86/sched: Add SD_ASYM_PACKING flags to x86 ITMT CPU Srinivas Pandruvada
2016-10-01 11:45 ` [PATCH v5 7/9] acpi: bus: Enable HWP CPPC objects Srinivas Pandruvada
2016-10-01 11:45 ` Srinivas Pandruvada [this message]
2016-10-01 11:45 ` [PATCH v5 9/9] cpufreq: intel_pstate: Use CPPC to get max performance Srinivas Pandruvada
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