[tip:irq/core] irqdomain: Introduce irq_domain_create_{linear, tree}
From: tip-bot for Marc Zyngier
Date: Tue Oct 13 2015 - 13:57:32 EST
Commit-ID: 1bf4ddc46c5d6123897a54cea4ffe3e90f30600b
Gitweb: http://git.kernel.org/tip/1bf4ddc46c5d6123897a54cea4ffe3e90f30600b
Author: Marc Zyngier <marc.zyngier@xxxxxxx>
AuthorDate: Tue, 13 Oct 2015 12:51:35 +0100
Committer: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
CommitDate: Tue, 13 Oct 2015 19:01:24 +0200
irqdomain: Introduce irq_domain_create_{linear, tree}
Just like we have irq_domain_add_{linear,tree} to create a irq domain
identified by an of_node, introduce irq_domain_create_{linear,tree}
that do the same thing, except that they take a struct fwnode_handle.
Existing functions get rewritten in terms of the new ones so that
everything keeps working as before (and __irq_domain_add is now
fwnode_handle based as well).
Signed-off-by: Marc Zyngier <marc.zyngier@xxxxxxx>
Reviewed-and-tested-by: Hanjun Guo <hanjun.guo@xxxxxxxxxx>
Tested-by: Lorenzo Pieralisi <lorenzo.pieralisi@xxxxxxx>
Cc: <linux-arm-kernel@xxxxxxxxxxxxxxxxxxx>
Cc: Tomasz Nowicki <tomasz.nowicki@xxxxxxxxxx>
Cc: Suravee Suthikulpanit <Suravee.Suthikulpanit@xxxxxxx>
Cc: Graeme Gregory <graeme@xxxxxxxxxxx>
Cc: Jake Oshins <jakeo@xxxxxxxxxxxxx>
Cc: Jiang Liu <jiang.liu@xxxxxxxxxxxxxxx>
Cc: Jason Cooper <jason@xxxxxxxxxxxxxx>
Cc: Rafael J. Wysocki <rjw@xxxxxxxxxxxxx>
Link: http://lkml.kernel.org/r/1444737105-31573-8-git-send-email-marc.zyngier@xxxxxxx
Signed-off-by: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
---
include/linux/irqdomain.h | 31 +++++++++++++++++++++++++------
kernel/irq/irqdomain.c | 11 ++++++-----
2 files changed, 31 insertions(+), 11 deletions(-)
diff --git a/include/linux/irqdomain.h b/include/linux/irqdomain.h
index 7e7842e..995d4c5 100644
--- a/include/linux/irqdomain.h
+++ b/include/linux/irqdomain.h
@@ -188,7 +188,7 @@ static inline struct device_node *irq_domain_get_of_node(struct irq_domain *d)
}
#ifdef CONFIG_IRQ_DOMAIN
-struct irq_domain *__irq_domain_add(struct device_node *of_node, int size,
+struct irq_domain *__irq_domain_add(struct fwnode_handle *fwnode, int size,
irq_hw_number_t hwirq_max, int direct_max,
const struct irq_domain_ops *ops,
void *host_data);
@@ -207,11 +207,15 @@ extern struct irq_domain *irq_find_matching_fwnode(struct fwnode_handle *fwnode,
enum irq_domain_bus_token bus_token);
extern void irq_set_default_host(struct irq_domain *host);
+static inline struct fwnode_handle *of_node_to_fwnode(struct device_node *node)
+{
+ return node ? &node->fwnode : NULL;
+}
+
static inline struct irq_domain *irq_find_matching_host(struct device_node *node,
enum irq_domain_bus_token bus_token)
{
- return irq_find_matching_fwnode(node ? &node->fwnode : NULL,
- bus_token);
+ return irq_find_matching_fwnode(of_node_to_fwnode(node), bus_token);
}
static inline struct irq_domain *irq_find_host(struct device_node *node)
@@ -231,14 +235,14 @@ static inline struct irq_domain *irq_domain_add_linear(struct device_node *of_no
const struct irq_domain_ops *ops,
void *host_data)
{
- return __irq_domain_add(of_node, size, size, 0, ops, host_data);
+ return __irq_domain_add(of_node_to_fwnode(of_node), size, size, 0, ops, host_data);
}
static inline struct irq_domain *irq_domain_add_nomap(struct device_node *of_node,
unsigned int max_irq,
const struct irq_domain_ops *ops,
void *host_data)
{
- return __irq_domain_add(of_node, 0, max_irq, max_irq, ops, host_data);
+ return __irq_domain_add(of_node_to_fwnode(of_node), 0, max_irq, max_irq, ops, host_data);
}
static inline struct irq_domain *irq_domain_add_legacy_isa(
struct device_node *of_node,
@@ -252,7 +256,22 @@ static inline struct irq_domain *irq_domain_add_tree(struct device_node *of_node
const struct irq_domain_ops *ops,
void *host_data)
{
- return __irq_domain_add(of_node, 0, ~0, 0, ops, host_data);
+ return __irq_domain_add(of_node_to_fwnode(of_node), 0, ~0, 0, ops, host_data);
+}
+
+static inline struct irq_domain *irq_domain_create_linear(struct fwnode_handle *fwnode,
+ unsigned int size,
+ const struct irq_domain_ops *ops,
+ void *host_data)
+{
+ return __irq_domain_add(fwnode, size, size, 0, ops, host_data);
+}
+
+static inline struct irq_domain *irq_domain_create_tree(struct fwnode_handle *fwnode,
+ const struct irq_domain_ops *ops,
+ void *host_data)
+{
+ return __irq_domain_add(fwnode, 0, ~0, 0, ops, host_data);
}
extern void irq_domain_remove(struct irq_domain *host);
diff --git a/kernel/irq/irqdomain.c b/kernel/irq/irqdomain.c
index b1fda6d..de6d749 100644
--- a/kernel/irq/irqdomain.c
+++ b/kernel/irq/irqdomain.c
@@ -40,13 +40,15 @@ static void irq_domain_check_hierarchy(struct irq_domain *domain);
* Allocates and initialize and irq_domain structure.
* Returns pointer to IRQ domain, or NULL on failure.
*/
-struct irq_domain *__irq_domain_add(struct device_node *of_node, int size,
+struct irq_domain *__irq_domain_add(struct fwnode_handle *fwnode, int size,
irq_hw_number_t hwirq_max, int direct_max,
const struct irq_domain_ops *ops,
void *host_data)
{
struct irq_domain *domain;
- struct fwnode_handle *fwnode;
+ struct device_node *of_node;
+
+ of_node = to_of_node(fwnode);
domain = kzalloc_node(sizeof(*domain) + (sizeof(unsigned int) * size),
GFP_KERNEL, of_node_to_nid(of_node));
@@ -54,7 +56,6 @@ struct irq_domain *__irq_domain_add(struct device_node *of_node, int size,
return NULL;
of_node_get(of_node);
- fwnode = of_node ? &of_node->fwnode : NULL;
/* Fill structure */
INIT_RADIX_TREE(&domain->revmap_tree, GFP_KERNEL);
@@ -137,7 +138,7 @@ struct irq_domain *irq_domain_add_simple(struct device_node *of_node,
{
struct irq_domain *domain;
- domain = __irq_domain_add(of_node, size, size, 0, ops, host_data);
+ domain = __irq_domain_add(of_node_to_fwnode(of_node), size, size, 0, ops, host_data);
if (!domain)
return NULL;
@@ -181,7 +182,7 @@ struct irq_domain *irq_domain_add_legacy(struct device_node *of_node,
{
struct irq_domain *domain;
- domain = __irq_domain_add(of_node, first_hwirq + size,
+ domain = __irq_domain_add(of_node_to_fwnode(of_node), first_hwirq + size,
first_hwirq + size, 0, ops, host_data);
if (domain)
irq_domain_associate_many(domain, first_irq, first_hwirq, size);
--
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