diff options
Diffstat (limited to 'drivers/staging/fsl-mc/include')
| -rw-r--r-- | drivers/staging/fsl-mc/include/dprc.h | 2 | ||||
| -rw-r--r-- | drivers/staging/fsl-mc/include/mc-private.h | 41 | ||||
| -rw-r--r-- | drivers/staging/fsl-mc/include/mc.h | 26 |
3 files changed, 66 insertions, 3 deletions
diff --git a/drivers/staging/fsl-mc/include/dprc.h b/drivers/staging/fsl-mc/include/dprc.h index c3152f677..94c492706 100644 --- a/drivers/staging/fsl-mc/include/dprc.h +++ b/drivers/staging/fsl-mc/include/dprc.h @@ -176,7 +176,7 @@ int dprc_reset_container(struct fsl_mc_io *mc_io, * @user_irq_id: A user defined number associated with this IRQ */ struct dprc_irq_cfg { - u64 paddr; + phys_addr_t paddr; u32 val; int user_irq_id; }; diff --git a/drivers/staging/fsl-mc/include/mc-private.h b/drivers/staging/fsl-mc/include/mc-private.h index c706f7786..ee5f1d2bf 100644 --- a/drivers/staging/fsl-mc/include/mc-private.h +++ b/drivers/staging/fsl-mc/include/mc-private.h @@ -26,6 +26,19 @@ strcmp(_obj_type, "dpmcp") == 0 || \ strcmp(_obj_type, "dpcon") == 0) +struct irq_domain; +struct msi_domain_info; + +/** + * Maximum number of total IRQs that can be pre-allocated for an MC bus' + * IRQ pool + */ +#define FSL_MC_IRQ_POOL_MAX_TOTAL_IRQS 256 + +struct device_node; +struct irq_domain; +struct msi_domain_info; + /** * struct fsl_mc - Private data of a "fsl,qoriq-mc" platform device * @root_mc_bus_dev: MC object device representing the root DPRC @@ -79,11 +92,13 @@ struct fsl_mc_resource_pool { * @resource_pools: array of resource pools (one pool per resource type) * for this MC bus. These resources represent allocatable entities * from the physical DPRC. + * @irq_resources: Pointer to array of IRQ objects for the IRQ pool * @scan_mutex: Serializes bus scanning */ struct fsl_mc_bus { struct fsl_mc_device mc_dev; struct fsl_mc_resource_pool resource_pools[FSL_MC_NUM_POOL_TYPES]; + struct fsl_mc_device_irq *irq_resources; struct mutex scan_mutex; /* serializes bus scanning */ }; @@ -99,7 +114,8 @@ void fsl_mc_device_remove(struct fsl_mc_device *mc_dev); int dprc_scan_container(struct fsl_mc_device *mc_bus_dev); -int dprc_scan_objects(struct fsl_mc_device *mc_bus_dev); +int dprc_scan_objects(struct fsl_mc_device *mc_bus_dev, + unsigned int *total_irq_count); int __init dprc_driver_init(void); @@ -107,7 +123,7 @@ void dprc_driver_exit(void); int __init fsl_mc_allocator_driver_init(void); -void __exit fsl_mc_allocator_driver_exit(void); +void fsl_mc_allocator_driver_exit(void); int __must_check fsl_mc_resource_allocate(struct fsl_mc_bus *mc_bus, enum fsl_mc_pool_type pool_type, @@ -116,4 +132,25 @@ int __must_check fsl_mc_resource_allocate(struct fsl_mc_bus *mc_bus, void fsl_mc_resource_free(struct fsl_mc_resource *resource); +struct irq_domain *fsl_mc_msi_create_irq_domain(struct fwnode_handle *fwnode, + struct msi_domain_info *info, + struct irq_domain *parent); + +int fsl_mc_find_msi_domain(struct device *mc_platform_dev, + struct irq_domain **mc_msi_domain); + +int fsl_mc_msi_domain_alloc_irqs(struct device *dev, + unsigned int irq_count); + +void fsl_mc_msi_domain_free_irqs(struct device *dev); + +int __init its_fsl_mc_msi_init(void); + +void its_fsl_mc_msi_cleanup(void); + +int fsl_mc_populate_irq_pool(struct fsl_mc_bus *mc_bus, + unsigned int irq_count); + +void fsl_mc_cleanup_irq_pool(struct fsl_mc_bus *mc_bus); + #endif /* _FSL_MC_PRIVATE_H_ */ diff --git a/drivers/staging/fsl-mc/include/mc.h b/drivers/staging/fsl-mc/include/mc.h index a933291e4..ac7c1ce68 100644 --- a/drivers/staging/fsl-mc/include/mc.h +++ b/drivers/staging/fsl-mc/include/mc.h @@ -14,12 +14,14 @@ #include <linux/device.h> #include <linux/mod_devicetable.h> #include <linux/list.h> +#include <linux/interrupt.h> #include "../include/dprc.h" #define FSL_MC_VENDOR_FREESCALE 0x1957 struct fsl_mc_device; struct fsl_mc_io; +struct fsl_mc_bus; /** * struct fsl_mc_driver - MC object device driver object @@ -75,6 +77,7 @@ enum fsl_mc_pool_type { FSL_MC_POOL_DPMCP = 0x0, /* corresponds to "dpmcp" in the MC */ FSL_MC_POOL_DPBP, /* corresponds to "dpbp" in the MC */ FSL_MC_POOL_DPCON, /* corresponds to "dpcon" in the MC */ + FSL_MC_POOL_IRQ, /* * NOTE: New resource pool types must be added before this entry @@ -104,6 +107,23 @@ struct fsl_mc_resource { }; /** + * struct fsl_mc_device_irq - MC object device message-based interrupt + * @msi_desc: pointer to MSI descriptor allocated by fsl_mc_msi_alloc_descs() + * @mc_dev: MC object device that owns this interrupt + * @dev_irq_index: device-relative IRQ index + * @resource: MC generic resource associated with the interrupt + */ +struct fsl_mc_device_irq { + struct msi_desc *msi_desc; + struct fsl_mc_device *mc_dev; + u8 dev_irq_index; + struct fsl_mc_resource resource; +}; + +#define to_fsl_mc_irq(_mc_resource) \ + container_of(_mc_resource, struct fsl_mc_device_irq, resource) + +/** * Bit masks for a MC object device (struct fsl_mc_device) flags */ #define FSL_MC_IS_DPRC 0x0001 @@ -124,6 +144,7 @@ struct fsl_mc_resource { * NULL if none. * @obj_desc: MC description of the DPAA device * @regions: pointer to array of MMIO region entries + * @irqs: pointer to array of pointers to interrupts allocated to this device * @resource: generic resource associated with this MC object device, if any. * * Generic device object for MC object devices that are "attached" to a @@ -155,6 +176,7 @@ struct fsl_mc_device { struct fsl_mc_io *mc_io; struct dprc_obj_desc obj_desc; struct resource *regions; + struct fsl_mc_device_irq **irqs; struct fsl_mc_resource *resource; }; @@ -198,6 +220,10 @@ int __must_check fsl_mc_object_allocate(struct fsl_mc_device *mc_dev, void fsl_mc_object_free(struct fsl_mc_device *mc_adev); +int __must_check fsl_mc_allocate_irqs(struct fsl_mc_device *mc_dev); + +void fsl_mc_free_irqs(struct fsl_mc_device *mc_dev); + extern struct bus_type fsl_mc_bus_type; #endif /* _FSL_MC_H_ */ |