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author | Ben Skeggs <bskeggs@redhat.com> | 2014-08-10 04:10:20 +1000 |
---|---|---|
committer | Ben Skeggs <bskeggs@redhat.com> | 2014-08-10 05:13:02 +1000 |
commit | 79ca27706a034b683196c85f5c6901b78e5ab8f0 (patch) | |
tree | c06ff32b983e4456b3af679288dad97bfe79cfe9 /drivers/gpu/drm/nouveau/core/engine/fifo/base.c | |
parent | drm/nouveau/core: move handle-based object apis to handle.c (diff) | |
download | linux-dev-79ca27706a034b683196c85f5c6901b78e5ab8f0.tar.xz linux-dev-79ca27706a034b683196c85f5c6901b78e5ab8f0.zip |
drm/nouveau/core: rework event interface
This is a lot of prep-work for being able to send event notifications
back to userspace. Events now contain data, rather than a "something
just happened" signal.
Handler data is now embedded into a containing structure, rather than
being kmalloc()'d, and can optionally have the notify routine handled
in a workqueue.
Various races between suspend/unload with display HPD/DP IRQ handlers
automagically solved as a result.
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Diffstat (limited to 'drivers/gpu/drm/nouveau/core/engine/fifo/base.c')
-rw-r--r-- | drivers/gpu/drm/nouveau/core/engine/fifo/base.c | 29 |
1 files changed, 21 insertions, 8 deletions
diff --git a/drivers/gpu/drm/nouveau/core/engine/fifo/base.c b/drivers/gpu/drm/nouveau/core/engine/fifo/base.c index 56ed3d73bf8e..812d85dc9f52 100644 --- a/drivers/gpu/drm/nouveau/core/engine/fifo/base.c +++ b/drivers/gpu/drm/nouveau/core/engine/fifo/base.c @@ -31,6 +31,23 @@ #include <engine/dmaobj.h> #include <engine/fifo.h> +static int +nouveau_fifo_event_ctor(void *data, u32 size, struct nvkm_notify *notify) +{ + if (size == 0) { + notify->size = 0; + notify->types = 1; + notify->index = 0; + return 0; + } + return -ENOSYS; +} + +static const struct nvkm_event_func +nouveau_fifo_event_func = { + .ctor = nouveau_fifo_event_ctor, +}; + int nouveau_fifo_channel_create_(struct nouveau_object *parent, struct nouveau_object *engine, @@ -91,7 +108,7 @@ nouveau_fifo_channel_create_(struct nouveau_object *parent, if (!chan->user) return -EFAULT; - nouveau_event_trigger(priv->cevent, 1, 0); + nvkm_event_send(&priv->cevent, 1, 0, NULL, 0); chan->size = size; return 0; @@ -168,8 +185,8 @@ void nouveau_fifo_destroy(struct nouveau_fifo *priv) { kfree(priv->channel); - nouveau_event_destroy(&priv->uevent); - nouveau_event_destroy(&priv->cevent); + nvkm_event_fini(&priv->uevent); + nvkm_event_fini(&priv->cevent); nouveau_engine_destroy(&priv->base); } @@ -194,11 +211,7 @@ nouveau_fifo_create_(struct nouveau_object *parent, if (!priv->channel) return -ENOMEM; - ret = nouveau_event_create(1, 1, &priv->cevent); - if (ret) - return ret; - - ret = nouveau_event_create(1, 1, &priv->uevent); + ret = nvkm_event_init(&nouveau_fifo_event_func, 1, 1, &priv->cevent); if (ret) return ret; |