forked from Minki/linux
a04d04231b
This is a wrapper around the interfaces defined in an earlier commit, and is also used by various userspace (either by a libdrm backend, or libpciaccess) tools/tests. In the future this will be extended to handle channels, replacing some long-unloved code we currently use, and allow fifo/display/mpeg (hi Ilia ;)) engines to all be exposed in the same way. Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
40 lines
1.2 KiB
C
40 lines
1.2 KiB
C
#ifndef __NVIF_NOTIFY_H__
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#define __NVIF_NOTIFY_H__
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struct nvif_notify {
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struct nvif_object *object;
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int index;
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#define NVIF_NOTIFY_USER 0
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#define NVIF_NOTIFY_WORK 1
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unsigned long flags;
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atomic_t putcnt;
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void (*dtor)(struct nvif_notify *);
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#define NVIF_NOTIFY_DROP 0
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#define NVIF_NOTIFY_KEEP 1
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int (*func)(struct nvif_notify *);
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/* this is const for a *very* good reason - the data might be on the
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* stack from an irq handler. if you're not nvif/notify.c then you
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* should probably think twice before casting it away...
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*/
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const void *data;
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u32 size;
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struct work_struct work;
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};
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int nvif_notify_init(struct nvif_object *, void (*dtor)(struct nvif_notify *),
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int (*func)(struct nvif_notify *), bool work, u8 type,
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void *data, u32 size, u32 reply, struct nvif_notify *);
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int nvif_notify_fini(struct nvif_notify *);
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int nvif_notify_get(struct nvif_notify *);
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int nvif_notify_put(struct nvif_notify *);
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int nvif_notify(const void *, u32, const void *, u32);
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int nvif_notify_new(struct nvif_object *, int (*func)(struct nvif_notify *),
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bool work, u8 type, void *data, u32 size, u32 reply,
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struct nvif_notify **);
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void nvif_notify_ref(struct nvif_notify *, struct nvif_notify **);
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#endif
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