/****************************************************************************** * gntalloc.h * * Interface to /dev/xen/gntalloc. * * Author: Daniel De Graaf * * This file is in the public domain. */ #ifndef __LINUX_PUBLIC_GNTALLOC_H__ #define __LINUX_PUBLIC_GNTALLOC_H__ #include /* * Allocates a new page and creates a new grant reference. */ #define IOCTL_GNTALLOC_ALLOC_GREF \ _IOC(_IOC_NONE, 'G', 5, sizeof(struct ioctl_gntalloc_alloc_gref)) struct ioctl_gntalloc_alloc_gref { /* IN parameters */ /* The ID of the domain to be given access to the grants. */ __u16 domid; /* Flags for this mapping */ __u16 flags; /* Number of pages to map */ __u32 count; /* OUT parameters */ /* The offset to be used on a subsequent call to mmap(). */ __u64 index; /* The grant references of the newly created grant, one per page */ /* Variable size, depending on count */ __u32 gref_ids[1]; }; #define GNTALLOC_FLAG_WRITABLE 1 /* * Deallocates the grant reference, allowing the associated page to be freed if * no other domains are using it. */ #define IOCTL_GNTALLOC_DEALLOC_GREF \ _IOC(_IOC_NONE, 'G', 6, sizeof(struct ioctl_gntalloc_dealloc_gref)) struct ioctl_gntalloc_dealloc_gref { /* IN parameters */ /* The offset returned in the map operation */ __u64 index; /* Number of references to unmap */ __u32 count; }; /* * Sets up an unmap notification within the page, so that the other side can do * cleanup if this side crashes. Required to implement cross-domain robust * mutexes or close notification on communication channels. * * Each mapped page only supports one notification; multiple calls referring to * the same page overwrite the previous notification. You must clear the * notification prior to the IOCTL_GNTALLOC_DEALLOC_GREF if you do not want it * to occur. */ #define IOCTL_GNTALLOC_SET_UNMAP_NOTIFY \ _IOC(_IOC_NONE, 'G', 7, sizeof(struct ioctl_gntalloc_unmap_notify)) struct ioctl_gntalloc_unmap_notify { /* IN parameters */ /* Offset in the file descriptor for a byte within the page (same as * used in mmap). If using UNMAP_NOTIFY_CLEAR_BYTE, this is the byte to * be cleared. Otherwise, it can be any byte in the page whose * notification we are adjusting. */ __u64 index; /* Action(s) to take on unmap */ __u32 action; /* Event channel to notify */ __u32 event_channel_port; }; /* Clear (set to zero) the byte specified by index */ #define UNMAP_NOTIFY_CLEAR_BYTE 0x1 /* Send an interrupt on the indicated event channel */ #define UNMAP_NOTIFY_SEND_EVENT 0x2 #endif /* __LINUX_PUBLIC_GNTALLOC_H__ */ elect name='qt'>
path: root/include/rdma/opa_port_info.h
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authorChristophe JAILLET <christophe.jaillet@wanadoo.fr>2017-01-31 00:47:30 -0800
committerDmitry Torokhov <dmitry.torokhov@gmail.com>2017-01-31 00:51:06 -0800
commit05e0be7c900797e9164976a6014d534ce3035909 (patch)
tree6064ddf732b21c686c958cb9da73f6eae6de5a27 /include/rdma/opa_port_info.h
parent3f5c34c6d4688b3b7e1dbc7bbc68a2f03a0d6b0c (diff)
Input: synaptics-rmi4 - fix reversed conditions in enable/disable_irq_wake
These tests are reversed. A warning should be displayed if an error is returned, not on success. Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr> Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Diffstat (limited to 'include/rdma/opa_port_info.h')