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Message-Id: <20180126125127.26439-3-bogdan.purcareata@nxp.com>
Date: Fri, 26 Jan 2018 06:51:27 -0600
From: Bogdan Purcareata <bogdan.purcareata@....com>
To: gregkh@...uxfoundation.org, laurentiu.tudor@....com,
ruxandra.radulescu@....com
Cc: stuyoder@...il.com, arnd@...db.de, robh@...nel.org,
ioana.ciornei@....com, nipun.gupta@....com, roy.pledge@....com,
horia.geanta@....com, marc.zyngier@....com, tglx@...utronix.de,
jason@...edaemon.net, bogdan.purcareata@....com,
devel@...verdev.osuosl.org, linux-kernel@...r.kernel.org,
linux-arm-kernel@...ts.infradead.org
Subject: [PATCH v5 2/2] staging: fsl-mc: Move irqchip code out of staging
Now that the fsl-mc bus core infrastructure is out of staging, the
remaining irqchip glue code used (irq-gic-v3-its-fsl-mc-msi.c) goes
to drivers/irqchip.
Signed-off-by: Stuart Yoder <stuyoder@...il.com>
[rebased, add dpaa2_eth and dpio #include updates]
Signed-off-by: Laurentiu Tudor <laurentiu.tudor@....com>
[rebased, split irqchip to separate patch]
Signed-off-by: Bogdan Purcareata <bogdan.purcareata@....com>
Cc: Thomas Gleixner <tglx@...utronix.de>
Cc: Jason Cooper <jason@...edaemon.net>
Cc: Marc Zyngier <marc.zyngier@....com>
---
Notes:
-v5:
- split irqchip glue code to separate patch (GregKH)
-v4 - v1:
- no change
drivers/irqchip/Makefile | 1 +
drivers/irqchip/irq-gic-v3-its-fsl-mc-msi.c | 100 +++++++++++++++++++++
drivers/staging/fsl-mc/bus/Makefile | 3 +-
.../staging/fsl-mc/bus/irq-gic-v3-its-fsl-mc-msi.c | 100 ---------------------
4 files changed, 102 insertions(+), 102 deletions(-)
create mode 100644 drivers/irqchip/irq-gic-v3-its-fsl-mc-msi.c
delete mode 100644 drivers/staging/fsl-mc/bus/irq-gic-v3-its-fsl-mc-msi.c
diff --git a/drivers/irqchip/Makefile b/drivers/irqchip/Makefile
index d2df34a..641d8a4 100644
--- a/drivers/irqchip/Makefile
+++ b/drivers/irqchip/Makefile
@@ -32,6 +32,7 @@ obj-$(CONFIG_ARM_GIC_V2M) += irq-gic-v2m.o
obj-$(CONFIG_ARM_GIC_V3) += irq-gic-v3.o irq-gic-common.o
obj-$(CONFIG_ARM_GIC_V3_ITS) += irq-gic-v3-its.o irq-gic-v3-its-platform-msi.o irq-gic-v4.o
obj-$(CONFIG_ARM_GIC_V3_ITS_PCI) += irq-gic-v3-its-pci-msi.o
+obj-$(CONFIG_FSL_MC_BUS) += irq-gic-v3-its-fsl-mc-msi.o
obj-$(CONFIG_PARTITION_PERCPU) += irq-partition-percpu.o
obj-$(CONFIG_HISILICON_IRQ_MBIGEN) += irq-mbigen.o
obj-$(CONFIG_ARM_NVIC) += irq-nvic.o
diff --git a/drivers/irqchip/irq-gic-v3-its-fsl-mc-msi.c b/drivers/irqchip/irq-gic-v3-its-fsl-mc-msi.c
new file mode 100644
index 0000000..b365fbb
--- /dev/null
+++ b/drivers/irqchip/irq-gic-v3-its-fsl-mc-msi.c
@@ -0,0 +1,100 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Freescale Management Complex (MC) bus driver MSI support
+ *
+ * Copyright (C) 2015-2016 Freescale Semiconductor, Inc.
+ * Author: German Rivera <German.Rivera@...escale.com>
+ *
+ */
+
+#include <linux/of_device.h>
+#include <linux/of_address.h>
+#include <linux/irq.h>
+#include <linux/msi.h>
+#include <linux/of.h>
+#include <linux/of_irq.h>
+#include <linux/fsl/mc.h>
+
+static struct irq_chip its_msi_irq_chip = {
+ .name = "ITS-fMSI",
+ .irq_mask = irq_chip_mask_parent,
+ .irq_unmask = irq_chip_unmask_parent,
+ .irq_eoi = irq_chip_eoi_parent,
+ .irq_set_affinity = msi_domain_set_affinity
+};
+
+static int its_fsl_mc_msi_prepare(struct irq_domain *msi_domain,
+ struct device *dev,
+ int nvec, msi_alloc_info_t *info)
+{
+ struct fsl_mc_device *mc_bus_dev;
+ struct msi_domain_info *msi_info;
+
+ if (!dev_is_fsl_mc(dev))
+ return -EINVAL;
+
+ mc_bus_dev = to_fsl_mc_device(dev);
+ if (!(mc_bus_dev->flags & FSL_MC_IS_DPRC))
+ return -EINVAL;
+
+ /*
+ * Set the device Id to be passed to the GIC-ITS:
+ *
+ * NOTE: This device id corresponds to the IOMMU stream ID
+ * associated with the DPRC object (ICID).
+ */
+#ifdef GENERIC_MSI_DOMAIN_OPS
+ info->scratchpad[0].ul = mc_bus_dev->icid;
+#endif
+ msi_info = msi_get_domain_info(msi_domain->parent);
+ return msi_info->ops->msi_prepare(msi_domain->parent, dev, nvec, info);
+}
+
+static struct msi_domain_ops its_fsl_mc_msi_ops __ro_after_init = {
+ .msi_prepare = its_fsl_mc_msi_prepare,
+};
+
+static struct msi_domain_info its_fsl_mc_msi_domain_info = {
+ .flags = (MSI_FLAG_USE_DEF_DOM_OPS | MSI_FLAG_USE_DEF_CHIP_OPS),
+ .ops = &its_fsl_mc_msi_ops,
+ .chip = &its_msi_irq_chip,
+};
+
+static const struct of_device_id its_device_id[] = {
+ { .compatible = "arm,gic-v3-its", },
+ {},
+};
+
+static int __init its_fsl_mc_msi_init(void)
+{
+ struct device_node *np;
+ struct irq_domain *parent;
+ struct irq_domain *mc_msi_domain;
+
+ for (np = of_find_matching_node(NULL, its_device_id); np;
+ np = of_find_matching_node(np, its_device_id)) {
+ if (!of_property_read_bool(np, "msi-controller"))
+ continue;
+
+ parent = irq_find_matching_host(np, DOMAIN_BUS_NEXUS);
+ if (!parent || !msi_get_domain_info(parent)) {
+ pr_err("%pOF: unable to locate ITS domain\n", np);
+ continue;
+ }
+
+ mc_msi_domain = fsl_mc_msi_create_irq_domain(
+ of_node_to_fwnode(np),
+ &its_fsl_mc_msi_domain_info,
+ parent);
+ if (!mc_msi_domain) {
+ pr_err("%pOF: unable to create fsl-mc domain\n", np);
+ continue;
+ }
+
+ pr_info("fsl-mc MSI: %pOF domain created\n", np);
+ }
+
+ return 0;
+}
+
+early_initcall(its_fsl_mc_msi_init);
diff --git a/drivers/staging/fsl-mc/bus/Makefile b/drivers/staging/fsl-mc/bus/Makefile
index 18b1b5f..b67889e 100644
--- a/drivers/staging/fsl-mc/bus/Makefile
+++ b/drivers/staging/fsl-mc/bus/Makefile
@@ -4,8 +4,7 @@
#
# Copyright (C) 2014 Freescale Semiconductor, Inc.
#
-obj-$(CONFIG_FSL_MC_BUS) += irq-gic-v3-its-fsl-mc-msi.o \
- dpbp.o \
+obj-$(CONFIG_FSL_MC_BUS) += dpbp.o \
dpcon.o
# MC DPIO driver
diff --git a/drivers/staging/fsl-mc/bus/irq-gic-v3-its-fsl-mc-msi.c b/drivers/staging/fsl-mc/bus/irq-gic-v3-its-fsl-mc-msi.c
deleted file mode 100644
index b365fbb..0000000
--- a/drivers/staging/fsl-mc/bus/irq-gic-v3-its-fsl-mc-msi.c
+++ /dev/null
@@ -1,100 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-/*
- * Freescale Management Complex (MC) bus driver MSI support
- *
- * Copyright (C) 2015-2016 Freescale Semiconductor, Inc.
- * Author: German Rivera <German.Rivera@...escale.com>
- *
- */
-
-#include <linux/of_device.h>
-#include <linux/of_address.h>
-#include <linux/irq.h>
-#include <linux/msi.h>
-#include <linux/of.h>
-#include <linux/of_irq.h>
-#include <linux/fsl/mc.h>
-
-static struct irq_chip its_msi_irq_chip = {
- .name = "ITS-fMSI",
- .irq_mask = irq_chip_mask_parent,
- .irq_unmask = irq_chip_unmask_parent,
- .irq_eoi = irq_chip_eoi_parent,
- .irq_set_affinity = msi_domain_set_affinity
-};
-
-static int its_fsl_mc_msi_prepare(struct irq_domain *msi_domain,
- struct device *dev,
- int nvec, msi_alloc_info_t *info)
-{
- struct fsl_mc_device *mc_bus_dev;
- struct msi_domain_info *msi_info;
-
- if (!dev_is_fsl_mc(dev))
- return -EINVAL;
-
- mc_bus_dev = to_fsl_mc_device(dev);
- if (!(mc_bus_dev->flags & FSL_MC_IS_DPRC))
- return -EINVAL;
-
- /*
- * Set the device Id to be passed to the GIC-ITS:
- *
- * NOTE: This device id corresponds to the IOMMU stream ID
- * associated with the DPRC object (ICID).
- */
-#ifdef GENERIC_MSI_DOMAIN_OPS
- info->scratchpad[0].ul = mc_bus_dev->icid;
-#endif
- msi_info = msi_get_domain_info(msi_domain->parent);
- return msi_info->ops->msi_prepare(msi_domain->parent, dev, nvec, info);
-}
-
-static struct msi_domain_ops its_fsl_mc_msi_ops __ro_after_init = {
- .msi_prepare = its_fsl_mc_msi_prepare,
-};
-
-static struct msi_domain_info its_fsl_mc_msi_domain_info = {
- .flags = (MSI_FLAG_USE_DEF_DOM_OPS | MSI_FLAG_USE_DEF_CHIP_OPS),
- .ops = &its_fsl_mc_msi_ops,
- .chip = &its_msi_irq_chip,
-};
-
-static const struct of_device_id its_device_id[] = {
- { .compatible = "arm,gic-v3-its", },
- {},
-};
-
-static int __init its_fsl_mc_msi_init(void)
-{
- struct device_node *np;
- struct irq_domain *parent;
- struct irq_domain *mc_msi_domain;
-
- for (np = of_find_matching_node(NULL, its_device_id); np;
- np = of_find_matching_node(np, its_device_id)) {
- if (!of_property_read_bool(np, "msi-controller"))
- continue;
-
- parent = irq_find_matching_host(np, DOMAIN_BUS_NEXUS);
- if (!parent || !msi_get_domain_info(parent)) {
- pr_err("%pOF: unable to locate ITS domain\n", np);
- continue;
- }
-
- mc_msi_domain = fsl_mc_msi_create_irq_domain(
- of_node_to_fwnode(np),
- &its_fsl_mc_msi_domain_info,
- parent);
- if (!mc_msi_domain) {
- pr_err("%pOF: unable to create fsl-mc domain\n", np);
- continue;
- }
-
- pr_info("fsl-mc MSI: %pOF domain created\n", np);
- }
-
- return 0;
-}
-
-early_initcall(its_fsl_mc_msi_init);
--
2.7.4
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