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Merge branch 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

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Pull IRQ chip updates from Ingo Molnar:
 "A late irqchips update:

   - New TI INTR/INTA set of drivers

   - Rewrite of the stm32mp1-exti driver as a platform driver

   - Update the IOMMU MSI mapping API to be RT friendly

   - A number of cleanups and other low impact fixes"

* 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (34 commits)
  iommu/dma-iommu: Remove iommu_dma_map_msi_msg()
  irqchip/gic-v3-mbi: Don't map the MSI page in mbi_compose_m{b, s}i_msg()
  irqchip/ls-scfg-msi: Don't map the MSI page in ls_scfg_msi_compose_msg()
  irqchip/gic-v3-its: Don't map the MSI page in its_irq_compose_msi_msg()
  irqchip/gicv2m: Don't map the MSI page in gicv2m_compose_msi_msg()
  iommu/dma-iommu: Split iommu_dma_map_msi_msg() in two parts
  genirq/msi: Add a new field in msi_desc to store an IOMMU cookie
  arm64: arch_k3: Enable interrupt controller drivers
  irqchip/ti-sci-inta: Add msi domain support
  soc: ti: Add MSI domain bus support for Interrupt Aggregator
  irqchip/ti-sci-inta: Add support for Interrupt Aggregator driver
  dt-bindings: irqchip: Introduce TISCI Interrupt Aggregator bindings
  irqchip/ti-sci-intr: Add support for Interrupt Router driver
  dt-bindings: irqchip: Introduce TISCI Interrupt router bindings
  gpio: thunderx: Use the default parent apis for {request,release}_resources
  genirq: Introduce irq_chip_{request,release}_resource_parent() apis
  firmware: ti_sci: Add helper apis to manage resources
  firmware: ti_sci: Add RM mapping table for am654
  firmware: ti_sci: Add support for IRQ management
  firmware: ti_sci: Add support for RM core ops
  ...
This commit is contained in:
Linus Torvalds
2019-05-19 10:58:45 -07:00
parent 39feaa3ff4 fb4e059265
commit d9351ea14d
38 changed files with 2510 additions and 228 deletions
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23
include/linux/soc/ti/ti_sci_inta_msi.h Normal file
View File

@@ -0,0 +1,23 @@
/* SPDX-License-Identifier: GPL-2.0 */
/*
* Texas Instruments' K3 TI SCI INTA MSI helper
*
* Copyright (C) 2018-2019 Texas Instruments Incorporated - http://www.ti.com/
* Lokesh Vutla <lokeshvutla@ti.com>
*/
#ifndef __INCLUDE_LINUX_TI_SCI_INTA_MSI_H
#define __INCLUDE_LINUX_TI_SCI_INTA_MSI_H
#include <linux/msi.h>
#include <linux/soc/ti/ti_sci_protocol.h>
struct irq_domain
*ti_sci_inta_msi_create_irq_domain(struct fwnode_handle *fwnode,
struct msi_domain_info *info,
struct irq_domain *parent);
int ti_sci_inta_msi_domain_alloc_irqs(struct device *dev,
struct ti_sci_resource *res);
unsigned int ti_sci_inta_msi_get_virq(struct device *dev, u32 index);
void ti_sci_inta_msi_domain_free_irqs(struct device *dev);
#endif /* __INCLUDE_LINUX_IRQCHIP_TI_SCI_INTA_H */

124
include/linux/soc/ti/ti_sci_protocol.h
View File

@@ -192,15 +192,68 @@ struct ti_sci_clk_ops {
u64 *current_freq);
};
/**
* struct ti_sci_rm_core_ops - Resource management core operations
* @get_range: Get a range of resources belonging to ti sci host.
* @get_rage_from_shost: Get a range of resources belonging to
* specified host id.
* - s_host: Host processing entity to which the
* resources are allocated
*
* NOTE: for these functions, all the parameters are consolidated and defined
* as below:
* - handle: Pointer to TISCI handle as retrieved by *ti_sci_get_handle
* - dev_id: TISCI device ID.
* - subtype: Resource assignment subtype that is being requested
* from the given device.
* - range_start: Start index of the resource range
* - range_end: Number of resources in the range
*/
struct ti_sci_rm_core_ops {
int (*get_range)(const struct ti_sci_handle *handle, u32 dev_id,
u8 subtype, u16 *range_start, u16 *range_num);
int (*get_range_from_shost)(const struct ti_sci_handle *handle,
u32 dev_id, u8 subtype, u8 s_host,
u16 *range_start, u16 *range_num);
};
/**
* struct ti_sci_rm_irq_ops: IRQ management operations
* @set_irq: Set an IRQ route between the requested source
* and destination
* @set_event_map: Set an Event based peripheral irq to Interrupt
* Aggregator.
* @free_irq: Free an an IRQ route between the requested source
* destination.
* @free_event_map: Free an event based peripheral irq to Interrupt
* Aggregator.
*/
struct ti_sci_rm_irq_ops {
int (*set_irq)(const struct ti_sci_handle *handle, u16 src_id,
u16 src_index, u16 dst_id, u16 dst_host_irq);
int (*set_event_map)(const struct ti_sci_handle *handle, u16 src_id,
u16 src_index, u16 ia_id, u16 vint,
u16 global_event, u8 vint_status_bit);
int (*free_irq)(const struct ti_sci_handle *handle, u16 src_id,
u16 src_index, u16 dst_id, u16 dst_host_irq);
int (*free_event_map)(const struct ti_sci_handle *handle, u16 src_id,
u16 src_index, u16 ia_id, u16 vint,
u16 global_event, u8 vint_status_bit);
};
/**
* struct ti_sci_ops - Function support for TI SCI
* @dev_ops: Device specific operations
* @clk_ops: Clock specific operations
* @rm_core_ops: Resource management core operations.
* @rm_irq_ops: IRQ management specific operations
*/
struct ti_sci_ops {
struct ti_sci_core_ops core_ops;
struct ti_sci_dev_ops dev_ops;
struct ti_sci_clk_ops clk_ops;
struct ti_sci_rm_core_ops rm_core_ops;
struct ti_sci_rm_irq_ops rm_irq_ops;
};
/**
@@ -213,10 +266,47 @@ struct ti_sci_handle {
struct ti_sci_ops ops;
};
#define TI_SCI_RESOURCE_NULL 0xffff
/**
* struct ti_sci_resource_desc - Description of TI SCI resource instance range.
* @start: Start index of the resource.
* @num: Number of resources.
* @res_map: Bitmap to manage the allocation of these resources.
*/
struct ti_sci_resource_desc {
u16 start;
u16 num;
unsigned long *res_map;
};
/**
* struct ti_sci_resource - Structure representing a resource assigned
* to a device.
* @sets: Number of sets available from this resource type
* @lock: Lock to guard the res map in each set.
* @desc: Array of resource descriptors.
*/
struct ti_sci_resource {
u16 sets;
raw_spinlock_t lock;
struct ti_sci_resource_desc *desc;
};
#if IS_ENABLED(CONFIG_TI_SCI_PROTOCOL)
const struct ti_sci_handle *ti_sci_get_handle(struct device *dev);
int ti_sci_put_handle(const struct ti_sci_handle *handle);
const struct ti_sci_handle *devm_ti_sci_get_handle(struct device *dev);
const struct ti_sci_handle *ti_sci_get_by_phandle(struct device_node *np,
const char *property);
const struct ti_sci_handle *devm_ti_sci_get_by_phandle(struct device *dev,
const char *property);
u16 ti_sci_get_free_resource(struct ti_sci_resource *res);
void ti_sci_release_resource(struct ti_sci_resource *res, u16 id);
u32 ti_sci_get_num_resources(struct ti_sci_resource *res);
struct ti_sci_resource *
devm_ti_sci_get_of_resource(const struct ti_sci_handle *handle,
struct device *dev, u32 dev_id, char *of_prop);
#else /* CONFIG_TI_SCI_PROTOCOL */
@@ -236,6 +326,40 @@ const struct ti_sci_handle *devm_ti_sci_get_handle(struct device *dev)
return ERR_PTR(-EINVAL);
}
static inline
const struct ti_sci_handle *ti_sci_get_by_phandle(struct device_node *np,
const char *property)
{
return ERR_PTR(-EINVAL);
}
static inline
const struct ti_sci_handle *devm_ti_sci_get_by_phandle(struct device *dev,
const char *property)
{
return ERR_PTR(-EINVAL);
}
static inline u16 ti_sci_get_free_resource(struct ti_sci_resource *res)
{
return TI_SCI_RESOURCE_NULL;
}
static inline void ti_sci_release_resource(struct ti_sci_resource *res, u16 id)
{
}
static inline u32 ti_sci_get_num_resources(struct ti_sci_resource *res)
{
return 0;
}
static inline struct ti_sci_resource *
devm_ti_sci_get_of_resource(const struct ti_sci_handle *handle,
struct device *dev, u32 dev_id, char *of_prop)
{
return ERR_PTR(-EINVAL);
}
#endif /* CONFIG_TI_SCI_PROTOCOL */
#endif /* __TISCI_PROTOCOL_H */