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Date: Sun, 23 Jun 2024 17:18:48 +0200 (CEST)
From: Thomas Gleixner <tglx@...utronix.de>
To: LKML <linux-kernel@...r.kernel.org>
Cc: linux-arm-kernel@...ts.infradead.org,
linux-pci@...r.kernel.org,
maz@...nel.org,
tglx@...utronix.de,
anna-maria@...utronix.de,
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rdunlap@...radead.org,
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gregory.clement@...tlin.com,
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vkoul@...nel.org,
okaya@...nel.org,
agross@...nel.org,
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mark.rutland@....com,
shameerali.kolothum.thodi@...wei.com,
yuzenghui@...wei.com,
shivamurthy.shastri@...utronix.de
Subject: [patch V4 10/21] irqchip/mbigen: Remove
platform_msi_create_device_domain() fallback
From: Thomas Gleixner <tglx@...utronix.de>
Now that ITS provides the MSI parent domain, remove the unused fallback
code.
Signed-off-by: Thomas Gleixner <tglx@...utronix.de>
Signed-off-by: Anna-Maria Behnsen <anna-maria@...utronix.de>
Signed-off-by: Shivamurthy Shastri <shivamurthy.shastri@...utronix.de>
Signed-off-by: Thomas Gleixner <tglx@...utronix.de>
---
drivers/irqchip/irq-mbigen.c | 74 ++----------------------------------
1 file changed, 4 insertions(+), 70 deletions(-)
diff --git a/drivers/irqchip/irq-mbigen.c b/drivers/irqchip/irq-mbigen.c
index db0fa80330d9..093fd42893a7 100644
--- a/drivers/irqchip/irq-mbigen.c
+++ b/drivers/irqchip/irq-mbigen.c
@@ -180,64 +180,6 @@ static int mbigen_domain_translate(struct irq_domain *d, struct irq_fwspec *fwsp
return -EINVAL;
}
-/* The following section will go away once ITS provides a MSI parent */
-
-static struct irq_chip mbigen_irq_chip = {
- .name = "mbigen-v2",
- .irq_mask = irq_chip_mask_parent,
- .irq_unmask = irq_chip_unmask_parent,
- .irq_eoi = mbigen_eoi_irq,
- .irq_set_type = mbigen_set_type,
- .irq_set_affinity = irq_chip_set_affinity_parent,
-};
-
-static int mbigen_irq_domain_alloc(struct irq_domain *domain,
- unsigned int virq,
- unsigned int nr_irqs,
- void *args)
-{
- struct irq_fwspec *fwspec = args;
- irq_hw_number_t hwirq;
- unsigned int type;
- struct mbigen_device *mgn_chip;
- int i, err;
-
- err = mbigen_domain_translate(domain, fwspec, &hwirq, &type);
- if (err)
- return err;
-
- err = platform_msi_device_domain_alloc(domain, virq, nr_irqs);
- if (err)
- return err;
-
- mgn_chip = platform_msi_get_host_data(domain);
-
- for (i = 0; i < nr_irqs; i++)
- irq_domain_set_hwirq_and_chip(domain, virq + i, hwirq + i,
- &mbigen_irq_chip, mgn_chip->base);
-
- return 0;
-}
-
-static void mbigen_irq_domain_free(struct irq_domain *domain, unsigned int virq,
- unsigned int nr_irqs)
-{
- platform_msi_device_domain_free(domain, virq, nr_irqs);
-}
-
-static const struct irq_domain_ops mbigen_domain_ops = {
- .translate = mbigen_domain_translate,
- .alloc = mbigen_irq_domain_alloc,
- .free = mbigen_irq_domain_free,
-};
-
-static void mbigen_write_msg(struct msi_desc *desc, struct msi_msg *msg)
-{
- mbigen_write_msi_msg(irq_get_irq_data(desc->irq), msg);
-}
-
-/* End of to be removed section */
-
static void mbigen_domain_set_desc(msi_alloc_info_t *arg, struct msi_desc *desc)
{
arg->desc = desc;
@@ -268,20 +210,12 @@ static const struct msi_domain_template mbigen_msi_template = {
static bool mbigen_create_device_domain(struct device *dev, unsigned int size,
struct mbigen_device *mgn_chip)
{
- struct irq_domain *domain = dev->msi.domain;
-
- if (WARN_ON_ONCE(!domain))
+ if (WARN_ON_ONCE(!dev->msi.domain))
return false;
- if (irq_domain_is_msi_parent(domain)) {
- return msi_create_device_irq_domain(dev, MSI_DEFAULT_DOMAIN,
- &mbigen_msi_template, size,
- NULL, mgn_chip->base);
- }
-
- /* Remove once ITS provides MSI parent */
- return !!platform_msi_create_device_domain(dev, size, mbigen_write_msg,
- &mbigen_domain_ops, mgn_chip);
+ return msi_create_device_irq_domain(dev, MSI_DEFAULT_DOMAIN,
+ &mbigen_msi_template, size,
+ NULL, mgn_chip->base);
}
static int mbigen_of_create_domain(struct platform_device *pdev,
--
2.34.1
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