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From: Dave Jiang <dave.jiang@intel.com>
To: dan.j.williams@intel.com, ross.zwisler@linux.intel.com
Cc: linux-acpi@vger.kernel.org, linux-nvdimm@lists.01.org
Subject: [PATCH v5 2/4] acpi: nfit: add persistent memory control flag for nd_region
Date: Wed, 31 Jan 2018 12:45:43 -0700	[thread overview]
Message-ID: <151742794391.53525.4928012768671546212.stgit@djiang5-desk3.ch.intel.com> (raw)
In-Reply-To: <151742786907.53525.180738048776121385.stgit@djiang5-desk3.ch.intel.com>

Propagate the ADR attribute flag from the NFIT platform capabilities
sub-table to nd_region.

Signed-off-by: Dave Jiang <dave.jiang@intel.com>
Reviewed-by: Ross Zwisler <ross.zwisler@linux.intel.com>
---
 drivers/acpi/nfit/core.c  |    3 +++
 include/linux/libnvdimm.h |    6 ++++++
 2 files changed, 9 insertions(+)

diff --git a/drivers/acpi/nfit/core.c b/drivers/acpi/nfit/core.c
index bcf52bb93b65..b1616120ca57 100644
--- a/drivers/acpi/nfit/core.c
+++ b/drivers/acpi/nfit/core.c
@@ -2668,6 +2668,9 @@ static int acpi_nfit_register_region(struct acpi_nfit_desc *acpi_desc,
 	if(acpi_desc->platform_cap & ACPI_NFIT_CAPABILITY_CACHE_FLUSH)
 		set_bit(ND_REGION_PERSIST_CACHE, &ndr_desc->flags);
 
+	if (acpi_desc->platform_cap & ACPI_NFIT_CAPABILITY_MEM_FLUSH)
+		set_bit(ND_REGION_PERSIST_MEMCTRL, &ndr_desc->flags);
+
 	list_for_each_entry(nfit_memdev, &acpi_desc->memdevs, list) {
 		struct acpi_nfit_memory_map *memdev = nfit_memdev->memdev;
 		struct nd_mapping_desc *mapping;
diff --git a/include/linux/libnvdimm.h b/include/linux/libnvdimm.h
index f2fc0da4da04..ff855ed965fb 100644
--- a/include/linux/libnvdimm.h
+++ b/include/linux/libnvdimm.h
@@ -52,6 +52,12 @@ enum {
 	 * system power loss.
 	 */
 	ND_REGION_PERSIST_CACHE = 1,
+	/*
+	 * Platform provides mechanisms to automatically flush outstanding
+	 * write data from memory controler to pmem on system power loss.
+	 * (ADR)
+	 */
+	ND_REGION_PERSIST_MEMCTRL = 2,
 
 	/* mark newly adjusted resources as requiring a label update */
 	DPA_RESOURCE_ADJUSTED = 1 << 0,

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WARNING: multiple messages have this Message-ID (diff)
From: Dave Jiang <dave.jiang-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
To: dan.j.williams-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org,
	ross.zwisler-VuQAYsv1563Yd54FQh9/CA@public.gmane.org
Cc: linux-acpi-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
	linux-nvdimm-hn68Rpc1hR1g9hUCZPvPmw@public.gmane.org
Subject: [PATCH v5 2/4] acpi: nfit: add persistent memory control flag for nd_region
Date: Wed, 31 Jan 2018 12:45:43 -0700	[thread overview]
Message-ID: <151742794391.53525.4928012768671546212.stgit@djiang5-desk3.ch.intel.com> (raw)
In-Reply-To: <151742786907.53525.180738048776121385.stgit-Cxk7aZI4ujnJARH06PadV2t3HXsI98Cx0E9HWUfgJXw@public.gmane.org>

Propagate the ADR attribute flag from the NFIT platform capabilities
sub-table to nd_region.

Signed-off-by: Dave Jiang <dave.jiang-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
Reviewed-by: Ross Zwisler <ross.zwisler-VuQAYsv1563Yd54FQh9/CA@public.gmane.org>
---
 drivers/acpi/nfit/core.c  |    3 +++
 include/linux/libnvdimm.h |    6 ++++++
 2 files changed, 9 insertions(+)

diff --git a/drivers/acpi/nfit/core.c b/drivers/acpi/nfit/core.c
index bcf52bb93b65..b1616120ca57 100644
--- a/drivers/acpi/nfit/core.c
+++ b/drivers/acpi/nfit/core.c
@@ -2668,6 +2668,9 @@ static int acpi_nfit_register_region(struct acpi_nfit_desc *acpi_desc,
 	if(acpi_desc->platform_cap & ACPI_NFIT_CAPABILITY_CACHE_FLUSH)
 		set_bit(ND_REGION_PERSIST_CACHE, &ndr_desc->flags);
 
+	if (acpi_desc->platform_cap & ACPI_NFIT_CAPABILITY_MEM_FLUSH)
+		set_bit(ND_REGION_PERSIST_MEMCTRL, &ndr_desc->flags);
+
 	list_for_each_entry(nfit_memdev, &acpi_desc->memdevs, list) {
 		struct acpi_nfit_memory_map *memdev = nfit_memdev->memdev;
 		struct nd_mapping_desc *mapping;
diff --git a/include/linux/libnvdimm.h b/include/linux/libnvdimm.h
index f2fc0da4da04..ff855ed965fb 100644
--- a/include/linux/libnvdimm.h
+++ b/include/linux/libnvdimm.h
@@ -52,6 +52,12 @@ enum {
 	 * system power loss.
 	 */
 	ND_REGION_PERSIST_CACHE = 1,
+	/*
+	 * Platform provides mechanisms to automatically flush outstanding
+	 * write data from memory controler to pmem on system power loss.
+	 * (ADR)
+	 */
+	ND_REGION_PERSIST_MEMCTRL = 2,
 
 	/* mark newly adjusted resources as requiring a label update */
 	DPA_RESOURCE_ADJUSTED = 1 << 0,

  parent reply	other threads:[~2018-01-31 19:40 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-01-31 19:45 [PATCH v5 0/4] add support for platform persistence capabilities Dave Jiang
2018-01-31 19:45 ` Dave Jiang
2018-01-31 19:45 ` [PATCH v5 1/4] acpi: nfit: Add support for detect platform CPU cache flush on power loss Dave Jiang
2018-01-31 19:45   ` Dave Jiang
2018-01-31 19:45 ` Dave Jiang [this message]
2018-01-31 19:45   ` [PATCH v5 2/4] acpi: nfit: add persistent memory control flag for nd_region Dave Jiang
2018-01-31 19:45 ` [PATCH v5 3/4] libnvdimm: expose platform persistence attribute " Dave Jiang
2018-01-31 19:45   ` Dave Jiang
2018-01-31 19:45 ` [PATCH v5 4/4] nfit-test: Add platform cap support from ACPI 6.2a to test Dave Jiang
2018-01-31 19:45   ` Dave Jiang

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