The following commit has been merged into the irq/msi branch of tip:
Commit-ID: e0b99c4c5917759c257a5c41d2c3e4d7c014578b
Gitweb: https://git.kernel.org/tip/e0b99c4c5917759c257a5c41d2c3e4d7c014578b
Author: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
AuthorDate: Sun, 23 Jun 2024 17:19:00 +02:00
Committer: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
CommitterDate: Thu, 18 Jul 2024 20:31:21 +02:00
irqchip/mvebu-odmi: Switch to parent MSI
All platform MSI users and the PCI/MSI code handle per device MSI domains
when the irqdomain associated to the device provides MSI parent
functionality.
Remove the "global" platform domain related code and provide the MSI parent
functionality by filling in msi_parent_ops.
Signed-off-by: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
Signed-off-by: Anna-Maria Behnsen <anna-maria@xxxxxxxxxxxxx>
Signed-off-by: Shivamurthy Shastri <shivamurthy.shastri@xxxxxxxxxxxxx>
Signed-off-by: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
Link: https://lore.kernel.org/r/20240623142235.759892514@xxxxxxxxxxxxx
---
drivers/irqchip/Kconfig | 1 +-
drivers/irqchip/irq-mvebu-odmi.c | 37 +++++++++++++++----------------
2 files changed, 19 insertions(+), 19 deletions(-)
diff --git a/drivers/irqchip/Kconfig b/drivers/irqchip/Kconfig
index a0fa599..4def6dc 100644
--- a/drivers/irqchip/Kconfig
+++ b/drivers/irqchip/Kconfig
@@ -379,6 +379,7 @@ config MVEBU_ICU
config MVEBU_ODMI
bool
+ select IRQ_MSI_LIB
select GENERIC_MSI_IRQ
config MVEBU_PIC
diff --git a/drivers/irqchip/irq-mvebu-odmi.c b/drivers/irqchip/irq-mvebu-odmi.c
index 1080915..ff19bfd 100644
--- a/drivers/irqchip/irq-mvebu-odmi.c
+++ b/drivers/irqchip/irq-mvebu-odmi.c
@@ -17,6 +17,9 @@
#include <linux/msi.h>
#include <linux/of_address.h>
#include <linux/slab.h>
+
+#include "irq-msi-lib.h"
+
#include <dt-bindings/interrupt-controller/arm-gic.h>
#define GICP_ODMIN_SET 0x40
@@ -141,27 +144,29 @@ static void odmi_irq_domain_free(struct irq_domain *domain,
}
static const struct irq_domain_ops odmi_domain_ops = {
+ .select = msi_lib_irq_domain_select,
.alloc = odmi_irq_domain_alloc,
.free = odmi_irq_domain_free,
};
-static struct irq_chip odmi_msi_irq_chip = {
- .name = "ODMI",
-};
+#define ODMI_MSI_FLAGS_REQUIRED (MSI_FLAG_USE_DEF_DOM_OPS | \
+ MSI_FLAG_USE_DEF_CHIP_OPS)
-static struct msi_domain_ops odmi_msi_ops = {
-};
+#define ODMI_MSI_FLAGS_SUPPORTED (MSI_GENERIC_FLAGS_MASK)
-static struct msi_domain_info odmi_msi_domain_info = {
- .flags = (MSI_FLAG_USE_DEF_DOM_OPS | MSI_FLAG_USE_DEF_CHIP_OPS),
- .ops = &odmi_msi_ops,
- .chip = &odmi_msi_irq_chip,
+static const struct msi_parent_ops odmi_msi_parent_ops = {
+ .supported_flags = ODMI_MSI_FLAGS_SUPPORTED,
+ .required_flags = ODMI_MSI_FLAGS_REQUIRED,
+ .bus_select_token = DOMAIN_BUS_GENERIC_MSI,
+ .bus_select_mask = MATCH_PLATFORM_MSI,
+ .prefix = "ODMI-",
+ .init_dev_msi_info = msi_lib_init_dev_msi_info,
};
static int __init mvebu_odmi_init(struct device_node *node,
struct device_node *parent)
{
- struct irq_domain *parent_domain, *inner_domain, *plat_domain;
+ struct irq_domain *parent_domain, *inner_domain;
int ret, i;
if (of_property_read_u32(node, "marvell,odmi-frames", &odmis_count))
@@ -208,18 +213,12 @@ static int __init mvebu_odmi_init(struct device_node *node,
goto err_unmap;
}
- plat_domain = platform_msi_create_irq_domain(of_node_to_fwnode(node),
- &odmi_msi_domain_info,
- inner_domain);
- if (!plat_domain) {
- ret = -ENOMEM;
- goto err_remove_inner;
- }
+ irq_domain_update_bus_token(inner_domain, DOMAIN_BUS_GENERIC_MSI);
+ inner_domain->flags |= IRQ_DOMAIN_FLAG_MSI_PARENT;
+ inner_domain->msi_parent_ops = &odmi_msi_parent_ops;
return 0;
-err_remove_inner:
- irq_domain_remove(inner_domain);
err_unmap:
for (i = 0; i < odmis_count; i++) {
struct odmi_data *odmi = &odmis[i];
|