LKML Archive on lore.kernel.org
help / color / mirror / Atom feed
From: Jiang Liu <jiang.liu@linux.intel.com>
To: "Rafael J. Wysocki" <rjw@rjwysocki.net>,
	Thomas Gleixner <tglx@linutronix.de>,
	Bjorn Helgaas <bhelgaas@google.com>,
	Yinghai Lu <yinghai@kernel.org>, Borislav Petkov <bp@alien8.de>,
	Lv Zheng <lv.zheng@intel.com>, Len Brown <lenb@kernel.org>
Cc: Jiang Liu <jiang.liu@linux.intel.com>,
	Tony Luck <tony.luck@intel.com>,
	x86@kernel.org, linux-kernel@vger.kernel.org,
	linux-pci@vger.kernel.org, linux-acpi@vger.kernel.org
Subject: [Patch v2 16/22] ACPI: Introduce helper function acpi_dev_filter_resource_type()
Date: Wed, 28 Jan 2015 18:57:34 +0800	[thread overview]
Message-ID: <1422442660-455-17-git-send-email-jiang.liu@linux.intel.com> (raw)
In-Reply-To: <1422442660-455-1-git-send-email-jiang.liu@linux.intel.com>

Introduce helper function acpi_dev_filter_resource_type(), which may
be used by acpi_dev_get_resources() to filer out resource based on
resource type.

Signed-off-by: Jiang Liu <jiang.liu@linux.intel.com>
---
 drivers/acpi/resource.c |   55 +++++++++++++++++++++++++++++++++++++++++++++++
 include/linux/acpi.h    |    8 +++++++
 2 files changed, 63 insertions(+)

diff --git a/drivers/acpi/resource.c b/drivers/acpi/resource.c
index 1c3abae6f2fa..3ea0d17eb951 100644
--- a/drivers/acpi/resource.c
+++ b/drivers/acpi/resource.c
@@ -569,3 +569,58 @@ int acpi_dev_get_resources(struct acpi_device *adev, struct list_head *list,
 	return c.count;
 }
 EXPORT_SYMBOL_GPL(acpi_dev_get_resources);
+
+/**
+ * acpi_dev_filter_resource_type - Filter ACPI resource according to resource
+ *				   types
+ * @ares: Input ACPI resource object.
+ * @types: Valid resource types of IORESOURCE_XXX
+ *
+ * This is a hepler function to support acpi_dev_get_resources(), which filters
+ * ACPI resource objects according to resource types.
+ */
+int acpi_dev_filter_resource_type(struct acpi_resource *ares,
+				  unsigned long types)
+{
+	unsigned long type = 0;
+
+	switch (ares->type) {
+	case ACPI_RESOURCE_TYPE_MEMORY24:
+	case ACPI_RESOURCE_TYPE_MEMORY32:
+	case ACPI_RESOURCE_TYPE_FIXED_MEMORY32:
+		type = IORESOURCE_MEM;
+		break;
+	case ACPI_RESOURCE_TYPE_IO:
+	case ACPI_RESOURCE_TYPE_FIXED_IO:
+		type = IORESOURCE_IO;
+		break;
+	case ACPI_RESOURCE_TYPE_IRQ:
+	case ACPI_RESOURCE_TYPE_EXTENDED_IRQ:
+		type = IORESOURCE_IRQ;
+		break;
+	case ACPI_RESOURCE_TYPE_DMA:
+	case ACPI_RESOURCE_TYPE_FIXED_DMA:
+		type = IORESOURCE_DMA;
+		break;
+	case ACPI_RESOURCE_TYPE_GENERIC_REGISTER:
+		type = IORESOURCE_REG;
+		break;
+	case ACPI_RESOURCE_TYPE_ADDRESS16:
+	case ACPI_RESOURCE_TYPE_ADDRESS32:
+	case ACPI_RESOURCE_TYPE_ADDRESS64:
+	case ACPI_RESOURCE_TYPE_EXTENDED_ADDRESS64:
+		if (ares->data.address.resource_type == ACPI_MEMORY_RANGE)
+			type = IORESOURCE_MEM;
+		else if (ares->data.address.resource_type == ACPI_IO_RANGE)
+			type = IORESOURCE_IO;
+		else if (ares->data.address.resource_type ==
+			 ACPI_BUS_NUMBER_RANGE)
+			type = IORESOURCE_BUS;
+		break;
+	default:
+		break;
+	}
+
+	return (type & types) ? 0 : 1;
+}
+EXPORT_SYMBOL_GPL(acpi_dev_filter_resource_type);
diff --git a/include/linux/acpi.h b/include/linux/acpi.h
index 21dac3cb62d2..e818decb631f 100644
--- a/include/linux/acpi.h
+++ b/include/linux/acpi.h
@@ -310,6 +310,14 @@ void acpi_dev_free_resource_list(struct list_head *list);
 int acpi_dev_get_resources(struct acpi_device *adev, struct list_head *list,
 			   int (*preproc)(struct acpi_resource *, void *),
 			   void *preproc_data);
+int acpi_dev_filter_resource_type(struct acpi_resource *ares,
+				  unsigned long types);
+
+static inline int acpi_dev_filter_resource_type_cb(struct acpi_resource *ares,
+						   void *arg)
+{
+	return acpi_dev_filter_resource_type(ares, (unsigned long)arg);
+}
 
 int acpi_check_resource_conflict(const struct resource *res);
 
-- 
1.7.10.4


  parent reply	other threads:[~2015-01-28 20:24 UTC|newest]

Thread overview: 32+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-01-28 10:57 [Patch v2 00/22] Improve ACPI resource parsing interfaces and enable IOAPIC hotplug Jiang Liu
2015-01-28 10:57 ` [Patch v2 01/22] ACPICA: Resources: Provide common part for struct acpi_resource_address structures Jiang Liu
2015-01-28 10:57 ` [Patch v2 02/22] ACPI: Remove redundant check in function acpi_dev_resource_address_space() Jiang Liu
2015-01-28 10:57 ` [Patch v2 03/22] ACPI: Implement proper length checks for mem resources Jiang Liu
2015-01-28 10:57 ` [Patch v2 04/22] ACPI: Use the length check for io resources as well Jiang Liu
2015-01-28 10:57 ` [Patch v2 05/22] ACPI: Let the parser return false for disabled resources Jiang Liu
2015-01-28 10:57 ` [Patch v2 06/22] ACPI: Unify the parsing of address_space and ext_address_space Jiang Liu
2015-01-28 10:57 ` [Patch v2 07/22] ACPI: Move the window flag logic to the combined parser Jiang Liu
2015-01-28 10:57 ` [Patch v2 08/22] ACPI: Add prefetch decoding to the address space parser Jiang Liu
2015-01-28 10:57 ` [Patch v2 09/22] ACPI: Fix a bug in parsing ACPI Memroy24 resource Jiang Liu
2015-01-28 23:15   ` Bjorn Helgaas
2015-01-28 10:57 ` [Patch v2 10/22] ACPI: Normalize return value of resource parser functions Jiang Liu
2015-01-28 10:57 ` [Patch v2 11/22] ACPI: Set flag IORESOURCE_UNSET for unassigned resources Jiang Liu
2015-01-28 10:57 ` [Patch v2 12/22] ACPI: Enforce stricter checks for address space descriptors Jiang Liu
2015-01-28 10:57 ` [Patch v2 13/22] ACPI: Return translation offset when parsing ACPI address space resources Jiang Liu
2015-01-28 10:57 ` [Patch v2 14/22] ACPI: Translate resource into master side address for bridge window resources Jiang Liu
2015-01-28 10:57 ` [Patch v2 15/22] ACPI: Add field offset to struct resource_list_entry Jiang Liu
2015-01-28 10:57 ` Jiang Liu [this message]
2015-01-28 10:57 ` [Patch v2 17/22] resources: Move struct resource_list_entry from ACPI into resource core Jiang Liu
2015-02-05  1:56   ` Vinod Koul
2015-01-28 10:57 ` [Patch v2 18/22] PCI: Use common resource list management code instead of private implementation Jiang Liu
2015-01-28 13:46   ` Will Deacon
2015-01-28 23:34   ` Bjorn Helgaas
2015-01-28 10:57 ` [Patch v2 19/22] x86/PCI/ACPI: Use common ACPI resource interfaces to simplify implementation Jiang Liu
2015-01-28 23:37   ` Bjorn Helgaas
2015-01-29  3:00     ` Jiang Liu
2015-01-28 23:51   ` Bjorn Helgaas
2015-01-29  3:11     ` Jiang Liu
2015-01-28 10:57 ` [Patch v2 20/22] x86/PCI: Refine the way to release PCI IRQ resources Jiang Liu
2015-01-28 23:38   ` Bjorn Helgaas
2015-01-28 10:57 ` [Patch v2 21/22] ACPI: Add interfaces to parse IOAPIC ID for IOAPIC hotplug Jiang Liu
2015-01-28 10:57 ` [Patch v2 22/22] x86/irq, ACPI: Implement ACPI driver to support " Jiang Liu

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=1422442660-455-17-git-send-email-jiang.liu@linux.intel.com \
    --to=jiang.liu@linux.intel.com \
    --cc=bhelgaas@google.com \
    --cc=bp@alien8.de \
    --cc=lenb@kernel.org \
    --cc=linux-acpi@vger.kernel.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=linux-pci@vger.kernel.org \
    --cc=lv.zheng@intel.com \
    --cc=rjw@rjwysocki.net \
    --cc=tglx@linutronix.de \
    --cc=tony.luck@intel.com \
    --cc=x86@kernel.org \
    --cc=yinghai@kernel.org \
    --subject='Re: [Patch v2 16/22] ACPI: Introduce helper function acpi_dev_filter_resource_type()' \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link

This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).