This patch series has been forked from the following patch series since
it no longer depends on the rest of the patches.
[PATCH v4 00/10] ACPI GIC Self-probing, GICv2m and GICv3 support
https://lkml.org/lkml/2015/7/29/234
It has been ported to use the newly introduced device fwnode_handle
for ACPI irqdmain introduced by Marc in the following patch series:
[PATCH v2 00/17] Divorcing irqdomain and device_node
http://git.kernel.org/cgit/linux/kernel/git/maz/arm-platforms.git irq/irq-domain-fwnode-v2
The following git branch contains the submitted patches along with
the pre-requsite patches (mainly for ARM64 PCI support for ACPI).
https://github.com/ssuthiku/linux.git v2m-multiframe-v4
This has been tested on AMD Seattle (Overdrive) RevB system.
NOTE: I have not tested ACPI GICv2m multiframe support since
I don't have access to such system. Any helps are appreciated.
Thanks,
Suravee
Changes from V3: (https://lkml.org/lkml/2015/10/21/691)
- Merged patch 2 into 1, and got rid off pci_msi_get_fwnode()
since only ACPI will likely use this. (per Marc suggestion)
- Rebased to 4.4.0-rc4
Changes from V2: (https://lkml.org/lkml/2015/10/14/1010)
- Minor clean up from Tomasz review comment in patch 6/6.
Changes from V1: (https://lkml.org/lkml/2015/10/13/859)
- Rebase on top of Marc's patch to addng support for multiple MSI frames
(https://lkml.org/lkml/2015/10/14/271)
- Adding fwnode convenient functions (patch 3 and 4)
Suravee Suthikulpanit (5):
acpi: pci: Setup MSI domain for ACPI based pci devices
irqdomain: introduce is_fwnode_irqchip helper
irqdomain: Introduce irq_domain_get_irqchip_fwnode_name helper
function
gicv2m: Refactor to prepare for ACPI support
gicv2m: acpi: Introducing GICv2m ACPI support
drivers/irqchip/irq-gic-v2m.c | 152 ++++++++++++++++++++++++++++++++++------
drivers/irqchip/irq-gic.c | 5 +-
drivers/pci/pci-acpi.c | 32 +++++++++
drivers/pci/probe.c | 2 +
include/linux/irqchip/arm-gic.h | 4 ++
include/linux/irqdomain.h | 6 ++
include/linux/pci.h | 10 +++
kernel/irq/irqdomain.c | 20 +++++-
8 files changed, 208 insertions(+), 23 deletions(-)
--
2.1.0
This patch introduces an interface for irqchip to register a callback,
to provide a way to determine appropriate MSI domain for a pci device.
It also introduces pci_host_bridge_acpi_msi_domain(), which returns
the MSI domain of the specified PCI host bridge with DOMAIN_BUS_PCI_MSI
bus token. Then, it is assigned to pci device.
Signed-off-by: Suravee Suthikulpanit <[email protected]>
---
drivers/pci/pci-acpi.c | 32 ++++++++++++++++++++++++++++++++
drivers/pci/probe.c | 2 ++
include/linux/pci.h | 10 ++++++++++
3 files changed, 44 insertions(+)
diff --git a/drivers/pci/pci-acpi.c b/drivers/pci/pci-acpi.c
index a32ba75..a555d7e 100644
--- a/drivers/pci/pci-acpi.c
+++ b/drivers/pci/pci-acpi.c
@@ -9,7 +9,9 @@
#include <linux/delay.h>
#include <linux/init.h>
+#include <linux/irqdomain.h>
#include <linux/pci.h>
+#include <linux/msi.h>
#include <linux/pci_hotplug.h>
#include <linux/module.h>
#include <linux/pci-aspm.h>
@@ -689,6 +691,36 @@ static struct acpi_bus_type acpi_pci_bus = {
.cleanup = pci_acpi_cleanup,
};
+
+static struct fwnode_handle *(*pci_msi_get_fwnode_cb)(struct device *dev);
+
+/**
+ * pci_msi_register_fwnode_provider - Register callback to retrieve fwnode
+ * @fn: The interrupt domain to retrieve
+ *
+ * This should be called by irqchip driver, which is the parent of
+ * the MSI domain to provide callback interface to query fwnode.
+ */
+void
+pci_msi_register_fwnode_provider(struct fwnode_handle *(*fn)(struct device *))
+{
+ pci_msi_get_fwnode_cb = fn;
+}
+
+struct irq_domain *pci_host_bridge_acpi_msi_domain(struct pci_bus *bus)
+{
+ struct irq_domain *dom = NULL;
+ struct fwnode_handle *fwnode = NULL;
+
+ if (pci_msi_get_fwnode_cb)
+ fwnode = pci_msi_get_fwnode_cb(&bus->dev);
+
+ if (fwnode)
+ dom = irq_find_matching_fwnode(fwnode,
+ DOMAIN_BUS_PCI_MSI);
+ return dom;
+}
+
static int __init acpi_pci_init(void)
{
int ret;
diff --git a/drivers/pci/probe.c b/drivers/pci/probe.c
index edb1984..553a029 100644
--- a/drivers/pci/probe.c
+++ b/drivers/pci/probe.c
@@ -672,6 +672,8 @@ static struct irq_domain *pci_host_bridge_msi_domain(struct pci_bus *bus)
* should be called from here.
*/
d = pci_host_bridge_of_msi_domain(bus);
+ if (!d)
+ d = pci_host_bridge_acpi_msi_domain(bus);
return d;
}
diff --git a/include/linux/pci.h b/include/linux/pci.h
index 6ae25aa..d86378c 100644
--- a/include/linux/pci.h
+++ b/include/linux/pci.h
@@ -1946,6 +1946,16 @@ static inline struct irq_domain *
pci_host_bridge_of_msi_domain(struct pci_bus *bus) { return NULL; }
#endif /* CONFIG_OF */
+#ifdef CONFIG_ACPI
+struct irq_domain *pci_host_bridge_acpi_msi_domain(struct pci_bus *bus);
+
+void
+pci_msi_register_fwnode_provider(struct fwnode_handle *(*fn)(struct device *));
+#else
+static inline struct irq_domain *
+pci_host_bridge_acpi_msi_domain(struct pci_bus *bus) { return NULL; }
+#endif
+
#ifdef CONFIG_EEH
static inline struct eeh_dev *pci_dev_to_eeh_dev(struct pci_dev *pdev)
{
--
2.1.0
Since there will be several places checking if fwnode.type
is equal FWNODE_IRQCHIP, this patch adds a convenient function
for this purpose.
Signed-off-by: Suravee Suthikulpanit <[email protected]>
---
drivers/irqchip/irq-gic.c | 2 +-
include/linux/irqdomain.h | 5 +++++
kernel/irq/irqdomain.c | 2 +-
3 files changed, 7 insertions(+), 2 deletions(-)
diff --git a/drivers/irqchip/irq-gic.c b/drivers/irqchip/irq-gic.c
index abf2ffa..fcd327f 100644
--- a/drivers/irqchip/irq-gic.c
+++ b/drivers/irqchip/irq-gic.c
@@ -972,7 +972,7 @@ static int gic_irq_domain_translate(struct irq_domain *d,
return 0;
}
- if (fwspec->fwnode->type == FWNODE_IRQCHIP) {
+ if (is_fwnode_irqchip(fwspec->fwnode)) {
if(fwspec->param_count != 2)
return -EINVAL;
diff --git a/include/linux/irqdomain.h b/include/linux/irqdomain.h
index d5e5c5b..4950a71 100644
--- a/include/linux/irqdomain.h
+++ b/include/linux/irqdomain.h
@@ -211,6 +211,11 @@ static inline struct fwnode_handle *of_node_to_fwnode(struct device_node *node)
return node ? &node->fwnode : NULL;
}
+static inline bool is_fwnode_irqchip(struct fwnode_handle *fwnode)
+{
+ return fwnode && fwnode->type == FWNODE_IRQCHIP;
+}
+
static inline struct irq_domain *irq_find_matching_host(struct device_node *node,
enum irq_domain_bus_token bus_token)
{
diff --git a/kernel/irq/irqdomain.c b/kernel/irq/irqdomain.c
index 22aa961..7f34d98 100644
--- a/kernel/irq/irqdomain.c
+++ b/kernel/irq/irqdomain.c
@@ -70,7 +70,7 @@ void irq_domain_free_fwnode(struct fwnode_handle *fwnode)
{
struct irqchip_fwid *fwid;
- if (WARN_ON(fwnode->type != FWNODE_IRQCHIP))
+ if (WARN_ON(!is_fwnode_irqchip(fwnode)))
return;
fwid = container_of(fwnode, struct irqchip_fwid, fwnode);
--
2.1.0
This patch adds an accessor function to retrieve struct irqchip_fwid.name.
Signed-off-by: Suravee Suthikulpanit <[email protected]>
---
include/linux/irqdomain.h | 1 +
kernel/irq/irqdomain.c | 18 ++++++++++++++++++
2 files changed, 19 insertions(+)
diff --git a/include/linux/irqdomain.h b/include/linux/irqdomain.h
index 4950a71..006633d 100644
--- a/include/linux/irqdomain.h
+++ b/include/linux/irqdomain.h
@@ -187,6 +187,7 @@ static inline struct device_node *irq_domain_get_of_node(struct irq_domain *d)
#ifdef CONFIG_IRQ_DOMAIN
struct fwnode_handle *irq_domain_alloc_fwnode(void *data);
void irq_domain_free_fwnode(struct fwnode_handle *fwnode);
+const char *irq_domain_get_irqchip_fwnode_name(struct fwnode_handle *fwnode);
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,
diff --git a/kernel/irq/irqdomain.c b/kernel/irq/irqdomain.c
index 7f34d98..a8c1cf6 100644
--- a/kernel/irq/irqdomain.c
+++ b/kernel/irq/irqdomain.c
@@ -79,6 +79,24 @@ void irq_domain_free_fwnode(struct fwnode_handle *fwnode)
}
/**
+ * irq_domain_get_irqchip_fwnode_name - Retrieve associated name of
+ * specified irqchip fwnode
+ * @fwnode: Specified fwnode_handle
+ *
+ * Returns associated name of the specified fwnode, or NULL on failure.
+ */
+const char *irq_domain_get_irqchip_fwnode_name(struct fwnode_handle *fwnode)
+{
+ struct irqchip_fwid *fwid;
+
+ if (!is_fwnode_irqchip(fwnode))
+ return NULL;
+
+ fwid = container_of(fwnode, struct irqchip_fwid, fwnode);
+ return fwid->name;
+}
+
+/**
* __irq_domain_add() - Allocate a new irq_domain data structure
* @of_node: optional device-tree node of the interrupt controller
* @size: Size of linear map; 0 for radix mapping only
--
2.1.0
This patch replaces the struct device_node with struct fwnode_handle
since this structure is common between DT and ACPI.
It also refactors gicv2m_init_one() to prepare for ACPI support.
There should be no functional changes.
Signed-off-by: Suravee Suthikulpanit <[email protected]>
---
drivers/irqchip/irq-gic-v2m.c | 57 +++++++++++++++++++++++++++----------------
1 file changed, 36 insertions(+), 21 deletions(-)
diff --git a/drivers/irqchip/irq-gic-v2m.c b/drivers/irqchip/irq-gic-v2m.c
index 87f8d10..7e60f7e 100644
--- a/drivers/irqchip/irq-gic-v2m.c
+++ b/drivers/irqchip/irq-gic-v2m.c
@@ -55,7 +55,7 @@ static DEFINE_SPINLOCK(v2m_lock);
struct v2m_data {
struct list_head entry;
- struct device_node *node;
+ struct fwnode_handle *fwnode;
struct resource res; /* GICv2m resource */
void __iomem *base; /* GICv2m virt address */
u32 spi_start; /* The SPI number that MSIs start */
@@ -254,7 +254,7 @@ static void gicv2m_teardown(void)
list_del(&v2m->entry);
kfree(v2m->bm);
iounmap(v2m->base);
- of_node_put(v2m->node);
+ of_node_put(to_of_node(v2m->fwnode));
kfree(v2m);
}
}
@@ -268,7 +268,7 @@ static int gicv2m_allocate_domains(struct irq_domain *parent)
if (!v2m)
return 0;
- inner_domain = irq_domain_create_tree(of_node_to_fwnode(v2m->node),
+ inner_domain = irq_domain_create_tree(v2m->fwnode,
&gicv2m_domain_ops, v2m);
if (!inner_domain) {
pr_err("Failed to create GICv2m domain\n");
@@ -277,10 +277,10 @@ static int gicv2m_allocate_domains(struct irq_domain *parent)
inner_domain->bus_token = DOMAIN_BUS_NEXUS;
inner_domain->parent = parent;
- pci_domain = pci_msi_create_irq_domain(of_node_to_fwnode(v2m->node),
+ pci_domain = pci_msi_create_irq_domain(v2m->fwnode,
&gicv2m_msi_domain_info,
inner_domain);
- plat_domain = platform_msi_create_irq_domain(of_node_to_fwnode(v2m->node),
+ plat_domain = platform_msi_create_irq_domain(v2m->fwnode,
&gicv2m_pmsi_domain_info,
inner_domain);
if (!pci_domain || !plat_domain) {
@@ -296,11 +296,13 @@ static int gicv2m_allocate_domains(struct irq_domain *parent)
return 0;
}
-static int __init gicv2m_init_one(struct device_node *node,
- struct irq_domain *parent)
+static int __init gicv2m_init_one(struct fwnode_handle *fwnode,
+ u32 spi_start, u32 nr_spis,
+ struct resource *res)
{
int ret;
struct v2m_data *v2m;
+ const char *name = NULL;
v2m = kzalloc(sizeof(struct v2m_data), GFP_KERNEL);
if (!v2m) {
@@ -309,13 +311,9 @@ static int __init gicv2m_init_one(struct device_node *node,
}
INIT_LIST_HEAD(&v2m->entry);
- v2m->node = node;
+ v2m->fwnode = fwnode;
- ret = of_address_to_resource(node, 0, &v2m->res);
- if (ret) {
- pr_err("Failed to allocate v2m resource.\n");
- goto err_free_v2m;
- }
+ memcpy(&v2m->res, res, sizeof(struct resource));
v2m->base = ioremap(v2m->res.start, resource_size(&v2m->res));
if (!v2m->base) {
@@ -324,10 +322,9 @@ static int __init gicv2m_init_one(struct device_node *node,
goto err_free_v2m;
}
- if (!of_property_read_u32(node, "arm,msi-base-spi", &v2m->spi_start) &&
- !of_property_read_u32(node, "arm,msi-num-spis", &v2m->nr_spis)) {
- pr_info("Overriding V2M MSI_TYPER (base:%u, num:%u)\n",
- v2m->spi_start, v2m->nr_spis);
+ if (spi_start && nr_spis) {
+ v2m->spi_start = spi_start;
+ v2m->nr_spis = nr_spis;
} else {
u32 typer = readl_relaxed(v2m->base + V2M_MSI_TYPER);
@@ -359,10 +356,13 @@ static int __init gicv2m_init_one(struct device_node *node,
}
list_add_tail(&v2m->entry, &v2m_nodes);
- pr_info("Node %s: range[%#lx:%#lx], SPI[%d:%d]\n", node->name,
- (unsigned long)v2m->res.start, (unsigned long)v2m->res.end,
- v2m->spi_start, (v2m->spi_start + v2m->nr_spis));
+ if (to_of_node(fwnode))
+ name = to_of_node(fwnode)->name;
+
+ pr_info("Frame %s: range[%#lx:%#lx], SPI[%d:%d]\n", name,
+ (unsigned long)res->start, (unsigned long)res->end,
+ v2m->spi_start, (v2m->spi_start + v2m->nr_spis));
return 0;
err_iounmap:
@@ -384,10 +384,25 @@ int __init gicv2m_of_init(struct device_node *node, struct irq_domain *parent)
for (child = of_find_matching_node(node, gicv2m_device_id); child;
child = of_find_matching_node(child, gicv2m_device_id)) {
+ u32 spi_start = 0, nr_spis = 0;
+ struct resource res;
+
if (!of_find_property(child, "msi-controller", NULL))
continue;
- ret = gicv2m_init_one(child, parent);
+ ret = of_address_to_resource(child, 0, &res);
+ if (ret) {
+ pr_err("Failed to allocate v2m resource.\n");
+ break;
+ }
+
+ if (!of_property_read_u32(child, "arm,msi-base-spi",
+ &spi_start) &&
+ !of_property_read_u32(child, "arm,msi-num-spis", &nr_spis))
+ pr_info("DT overriding V2M MSI_TYPER (base:%u, num:%u)\n",
+ spi_start, nr_spis);
+
+ ret = gicv2m_init_one(&child->fwnode, spi_start, nr_spis, &res);
if (ret) {
of_node_put(node);
break;
--
2.1.0
This patch introduces gicv2m_acpi_init(), which uses information
in MADT GIC MSI frames structure to initialize GICv2m driver.
Signed-off-by: Suravee Suthikulpanit <[email protected]>
Signed-off-by: Hanjun Guo <[email protected]>
---
drivers/irqchip/irq-gic-v2m.c | 95 +++++++++++++++++++++++++++++++++++++++++
drivers/irqchip/irq-gic.c | 3 ++
include/linux/irqchip/arm-gic.h | 4 ++
3 files changed, 102 insertions(+)
diff --git a/drivers/irqchip/irq-gic-v2m.c b/drivers/irqchip/irq-gic-v2m.c
index 7e60f7e..4f52e9a 100644
--- a/drivers/irqchip/irq-gic-v2m.c
+++ b/drivers/irqchip/irq-gic-v2m.c
@@ -15,9 +15,11 @@
#define pr_fmt(fmt) "GICv2m: " fmt
+#include <linux/acpi.h>
#include <linux/irq.h>
#include <linux/irqdomain.h>
#include <linux/kernel.h>
+#include <linux/msi.h>
#include <linux/of_address.h>
#include <linux/of_pci.h>
#include <linux/slab.h>
@@ -138,6 +140,11 @@ static int gicv2m_irq_gic_domain_alloc(struct irq_domain *domain,
fwspec.param[0] = 0;
fwspec.param[1] = hwirq - 32;
fwspec.param[2] = IRQ_TYPE_EDGE_RISING;
+ } else if (is_fwnode_irqchip(domain->parent->fwnode)) {
+ fwspec.fwnode = domain->parent->fwnode;
+ fwspec.param_count = 2;
+ fwspec.param[0] = hwirq;
+ fwspec.param[1] = IRQ_TYPE_EDGE_RISING;
} else {
return -EINVAL;
}
@@ -255,6 +262,8 @@ static void gicv2m_teardown(void)
kfree(v2m->bm);
iounmap(v2m->base);
of_node_put(to_of_node(v2m->fwnode));
+ if (is_fwnode_irqchip(v2m->fwnode))
+ irq_domain_free_fwnode(v2m->fwnode);
kfree(v2m);
}
}
@@ -359,6 +368,8 @@ static int __init gicv2m_init_one(struct fwnode_handle *fwnode,
if (to_of_node(fwnode))
name = to_of_node(fwnode)->name;
+ else
+ name = irq_domain_get_irqchip_fwnode_name(fwnode);
pr_info("Frame %s: range[%#lx:%#lx], SPI[%d:%d]\n", name,
(unsigned long)res->start, (unsigned long)res->end,
@@ -415,3 +426,87 @@ int __init gicv2m_of_init(struct device_node *node, struct irq_domain *parent)
gicv2m_teardown();
return ret;
}
+
+#ifdef CONFIG_ACPI
+static int acpi_num_msi;
+
+static struct fwnode_handle *gicv2m_get_fwnode(struct device *dev)
+{
+ struct v2m_data *data;
+
+ if (WARN_ON(acpi_num_msi <= 0))
+ return NULL;
+
+ /* We only return the fwnode of the first MSI frame. */
+ data = list_first_entry_or_null(&v2m_nodes, struct v2m_data, entry);
+ if (!data)
+ return NULL;
+
+ return data->fwnode;
+}
+
+static int __init
+acpi_parse_madt_msi(struct acpi_subtable_header *header,
+ const unsigned long end)
+{
+ int ret;
+ struct resource res;
+ u32 spi_start = 0, nr_spis = 0;
+ struct acpi_madt_generic_msi_frame *m;
+ struct fwnode_handle *fwnode = NULL;
+
+ m = (struct acpi_madt_generic_msi_frame *)header;
+ if (BAD_MADT_ENTRY(m, end))
+ return -EINVAL;
+
+ res.start = m->base_address;
+ res.end = m->base_address + 0x1000;
+
+ if (m->flags & ACPI_MADT_OVERRIDE_SPI_VALUES) {
+ spi_start = m->spi_base;
+ nr_spis = m->spi_count;
+
+ pr_info("ACPI overriding V2M MSI_TYPER (base:%u, num:%u)\n",
+ spi_start, nr_spis);
+ }
+
+ fwnode = irq_domain_alloc_fwnode((void *)m->base_address);
+ if (!fwnode) {
+ pr_err("Unable to allocate GICv2m domain token\n");
+ return -EINVAL;
+ }
+
+ ret = gicv2m_init_one(fwnode, spi_start, nr_spis, &res);
+ if (ret)
+ irq_domain_free_fwnode(fwnode);
+
+ return ret;
+}
+
+int __init gicv2m_acpi_init(struct irq_domain *parent)
+{
+ int ret;
+
+ if (acpi_num_msi > 0)
+ return 0;
+
+ acpi_num_msi = acpi_table_parse_madt(ACPI_MADT_TYPE_GENERIC_MSI_FRAME,
+ acpi_parse_madt_msi, 0);
+
+ if (acpi_num_msi <= 0)
+ goto err_out;
+
+ ret = gicv2m_allocate_domains(parent);
+ if (ret)
+ goto err_out;
+
+ pci_msi_register_fwnode_provider(&gicv2m_get_fwnode);
+
+ return 0;
+
+err_out:
+ gicv2m_teardown();
+ return -EINVAL;
+}
+
+#endif /* CONFIG_ACPI */
diff --git a/drivers/irqchip/irq-gic.c b/drivers/irqchip/irq-gic.c
index fcd327f..e4463f7 100644
--- a/drivers/irqchip/irq-gic.c
+++ b/drivers/irqchip/irq-gic.c
@@ -1358,6 +1358,9 @@ static int __init gic_v2_acpi_init(struct acpi_subtable_header *header,
__gic_init_bases(0, -1, dist_base, cpu_base, 0, domain_handle);
+ if (IS_ENABLED(CONFIG_ARM_GIC_V2M))
+ gicv2m_acpi_init(gic_data[0].domain);
+
acpi_set_irq_model(ACPI_IRQ_MODEL_GIC, domain_handle);
return 0;
}
diff --git a/include/linux/irqchip/arm-gic.h b/include/linux/irqchip/arm-gic.h
index bae69e5..30b2ccb 100644
--- a/include/linux/irqchip/arm-gic.h
+++ b/include/linux/irqchip/arm-gic.h
@@ -108,6 +108,10 @@ void gic_init(unsigned int nr, int start,
int gicv2m_of_init(struct device_node *node, struct irq_domain *parent);
+#ifdef CONFIG_ACPI
+int gicv2m_acpi_init(struct irq_domain *parent);
+#endif
+
void gic_send_sgi(unsigned int cpu_id, unsigned int irq);
int gic_get_cpu_id(unsigned int cpu);
void gic_migrate_target(unsigned int new_cpu_id);
--
2.1.0
Hi Suravee,
[auto build test ERROR on tip/irq/core]
[also build test ERROR on v4.4-rc4 next-20151208]
url: https://github.com/0day-ci/linux/commits/Suravee-Suthikulpanit/gicv2m-acpi-Add-ACPI-support-for-GICv2m-MSI/20151209-042217
config: i386-alldefconfig (attached as .config)
reproduce:
# save the attached .config to linux build tree
make ARCH=i386
All error/warnings (new ones prefixed by >>):
drivers/pci/pci-acpi.c: In function 'pci_host_bridge_acpi_msi_domain':
>> drivers/pci/pci-acpi.c:719:9: error: implicit declaration of function 'irq_find_matching_fwnode' [-Werror=implicit-function-declaration]
dom = irq_find_matching_fwnode(fwnode,
^
>> drivers/pci/pci-acpi.c:719:7: warning: assignment makes pointer from integer without a cast [-Wint-conversion]
dom = irq_find_matching_fwnode(fwnode,
^
cc1: some warnings being treated as errors
vim +/irq_find_matching_fwnode +719 drivers/pci/pci-acpi.c
713 struct fwnode_handle *fwnode = NULL;
714
715 if (pci_msi_get_fwnode_cb)
716 fwnode = pci_msi_get_fwnode_cb(&bus->dev);
717
718 if (fwnode)
> 719 dom = irq_find_matching_fwnode(fwnode,
720 DOMAIN_BUS_PCI_MSI);
721 return dom;
722 }
---
0-DAY kernel test infrastructure Open Source Technology Center
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