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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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db3b9e990e
This moves the VME core, VME board drivers, and VME bridge drivers out of the drivers/staging/vme/ area to drivers/vme/. The VME device drivers have not moved out yet due to some API questions they are still working through, that should happen soon, hopefully. Cc: Martyn Welch <martyn.welch@ge.com> Cc: Manohar Vanga <manohar.vanga@cern.ch> Cc: Vincent Bossier <vincent.bossier@gmail.com> Cc: "Emilio G. Cota" <cota@braap.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
175 lines
4.4 KiB
C
175 lines
4.4 KiB
C
#ifndef _VME_BRIDGE_H_
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#define _VME_BRIDGE_H_
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#define VME_CRCSR_BUF_SIZE (508*1024)
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/*
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* Resource structures
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*/
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struct vme_master_resource {
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struct list_head list;
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struct vme_bridge *parent;
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/*
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* We are likely to need to access the VME bus in interrupt context, so
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* protect master routines with a spinlock rather than a mutex.
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*/
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spinlock_t lock;
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int locked;
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int number;
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u32 address_attr;
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u32 cycle_attr;
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u32 width_attr;
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struct resource bus_resource;
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void __iomem *kern_base;
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};
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struct vme_slave_resource {
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struct list_head list;
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struct vme_bridge *parent;
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struct mutex mtx;
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int locked;
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int number;
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u32 address_attr;
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u32 cycle_attr;
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};
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struct vme_dma_pattern {
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u32 pattern;
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u32 type;
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};
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struct vme_dma_pci {
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dma_addr_t address;
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};
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struct vme_dma_vme {
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unsigned long long address;
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u32 aspace;
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u32 cycle;
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u32 dwidth;
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};
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struct vme_dma_list {
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struct list_head list;
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struct vme_dma_resource *parent;
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struct list_head entries;
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struct mutex mtx;
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};
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struct vme_dma_resource {
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struct list_head list;
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struct vme_bridge *parent;
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struct mutex mtx;
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int locked;
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int number;
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struct list_head pending;
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struct list_head running;
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u32 route_attr;
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};
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struct vme_lm_resource {
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struct list_head list;
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struct vme_bridge *parent;
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struct mutex mtx;
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int locked;
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int number;
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int monitors;
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};
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struct vme_bus_error {
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struct list_head list;
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unsigned long long address;
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u32 attributes;
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};
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struct vme_callback {
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void (*func)(int, int, void*);
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void *priv_data;
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};
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struct vme_irq {
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int count;
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struct vme_callback callback[255];
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};
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/* Allow 16 characters for name (including null character) */
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#define VMENAMSIZ 16
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/* This structure stores all the information about one bridge
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* The structure should be dynamically allocated by the driver and one instance
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* of the structure should be present for each VME chip present in the system.
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*/
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struct vme_bridge {
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char name[VMENAMSIZ];
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int num;
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struct list_head master_resources;
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struct list_head slave_resources;
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struct list_head dma_resources;
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struct list_head lm_resources;
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struct list_head vme_errors; /* List for errors generated on VME */
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struct list_head devices; /* List of devices on this bridge */
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/* Bridge Info - XXX Move to private structure? */
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struct device *parent; /* Parent device (eg. pdev->dev for PCI) */
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void *driver_priv; /* Private pointer for the bridge driver */
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struct list_head bus_list; /* list of VME buses */
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/* Interrupt callbacks */
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struct vme_irq irq[7];
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/* Locking for VME irq callback configuration */
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struct mutex irq_mtx;
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/* Slave Functions */
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int (*slave_get) (struct vme_slave_resource *, int *,
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unsigned long long *, unsigned long long *, dma_addr_t *,
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u32 *, u32 *);
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int (*slave_set) (struct vme_slave_resource *, int, unsigned long long,
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unsigned long long, dma_addr_t, u32, u32);
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/* Master Functions */
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int (*master_get) (struct vme_master_resource *, int *,
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unsigned long long *, unsigned long long *, u32 *, u32 *,
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u32 *);
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int (*master_set) (struct vme_master_resource *, int,
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unsigned long long, unsigned long long, u32, u32, u32);
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ssize_t (*master_read) (struct vme_master_resource *, void *, size_t,
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loff_t);
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ssize_t (*master_write) (struct vme_master_resource *, void *, size_t,
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loff_t);
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unsigned int (*master_rmw) (struct vme_master_resource *, unsigned int,
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unsigned int, unsigned int, loff_t);
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/* DMA Functions */
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int (*dma_list_add) (struct vme_dma_list *, struct vme_dma_attr *,
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struct vme_dma_attr *, size_t);
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int (*dma_list_exec) (struct vme_dma_list *);
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int (*dma_list_empty) (struct vme_dma_list *);
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/* Interrupt Functions */
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void (*irq_set) (struct vme_bridge *, int, int, int);
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int (*irq_generate) (struct vme_bridge *, int, int);
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/* Location monitor functions */
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int (*lm_set) (struct vme_lm_resource *, unsigned long long, u32, u32);
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int (*lm_get) (struct vme_lm_resource *, unsigned long long *, u32 *,
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u32 *);
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int (*lm_attach) (struct vme_lm_resource *, int, void (*callback)(int));
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int (*lm_detach) (struct vme_lm_resource *, int);
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/* CR/CSR space functions */
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int (*slot_get) (struct vme_bridge *);
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/* Bridge parent interface */
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void *(*alloc_consistent)(struct device *dev, size_t size,
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dma_addr_t *dma);
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void (*free_consistent)(struct device *dev, size_t size,
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void *vaddr, dma_addr_t dma);
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};
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void vme_irq_handler(struct vme_bridge *, int, int);
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int vme_register_bridge(struct vme_bridge *);
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void vme_unregister_bridge(struct vme_bridge *);
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#endif /* _VME_BRIDGE_H_ */
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