From d375e7d56dffa564a6c337d2ed3217fb94826100 Mon Sep 17 00:00:00 2001 From: Ben Skeggs Date: Mon, 30 Apr 2012 13:30:00 +1000 Subject: drm/nouveau/fence: minor api changes for an upcoming rework Signed-off-by: Ben Skeggs --- drivers/gpu/drm/nouveau/nouveau_fence.h | 28 ++++++++++++++++++++++++++++ 1 file changed, 28 insertions(+) create mode 100644 drivers/gpu/drm/nouveau/nouveau_fence.h (limited to 'drivers/gpu/drm/nouveau/nouveau_fence.h') diff --git a/drivers/gpu/drm/nouveau/nouveau_fence.h b/drivers/gpu/drm/nouveau/nouveau_fence.h new file mode 100644 index 000000000000..1337acb00172 --- /dev/null +++ b/drivers/gpu/drm/nouveau/nouveau_fence.h @@ -0,0 +1,28 @@ +#ifndef __NOUVEAU_FENCE_H__ +#define __NOUVEAU_FENCE_H__ + +struct nouveau_fence { + struct list_head head; + struct kref kref; + + struct nouveau_channel *channel; + unsigned long timeout; + u32 sequence; + + void (*work)(void *priv, bool signalled); + void *priv; +}; + +int nouveau_fence_new(struct nouveau_channel *, struct nouveau_fence **); +struct nouveau_fence * +nouveau_fence_ref(struct nouveau_fence *); +void nouveau_fence_unref(struct nouveau_fence **); + +int nouveau_fence_emit(struct nouveau_fence *, struct nouveau_channel *); +bool nouveau_fence_done(struct nouveau_fence *); +int nouveau_fence_wait(struct nouveau_fence *, bool lazy, bool intr); +int nouveau_fence_sync(struct nouveau_fence *, struct nouveau_channel *); +void nouveau_fence_idle(struct nouveau_channel *); +void nouveau_fence_update(struct nouveau_channel *); + +#endif -- cgit v1.2.3 From 5e120f6e4b3f35b741c5445dfc755f50128c3c44 Mon Sep 17 00:00:00 2001 From: Ben Skeggs Date: Mon, 30 Apr 2012 13:55:29 +1000 Subject: drm/nouveau/fence: convert to exec engine, and improve channel sync Now have a somewhat simpler semaphore sync implementation for nv17:nv84, and a switched to using semaphores as fences on nv84+ and making use of the hardware's >= acquire operation. Signed-off-by: Ben Skeggs --- drivers/gpu/drm/nouveau/nouveau_fence.h | 23 +++++++++++++++++++++++ 1 file changed, 23 insertions(+) (limited to 'drivers/gpu/drm/nouveau/nouveau_fence.h') diff --git a/drivers/gpu/drm/nouveau/nouveau_fence.h b/drivers/gpu/drm/nouveau/nouveau_fence.h index 1337acb00172..ec9afa775ea7 100644 --- a/drivers/gpu/drm/nouveau/nouveau_fence.h +++ b/drivers/gpu/drm/nouveau/nouveau_fence.h @@ -25,4 +25,27 @@ int nouveau_fence_sync(struct nouveau_fence *, struct nouveau_channel *); void nouveau_fence_idle(struct nouveau_channel *); void nouveau_fence_update(struct nouveau_channel *); +struct nouveau_fence_chan { + struct list_head pending; + spinlock_t lock; + u32 sequence; +}; + +struct nouveau_fence_priv { + struct nouveau_exec_engine engine; + int (*emit)(struct nouveau_fence *); + int (*sync)(struct nouveau_fence *, struct nouveau_channel *); + u32 (*read)(struct nouveau_channel *); +}; + +void nouveau_fence_context_new(struct nouveau_fence_chan *); +void nouveau_fence_context_del(struct nouveau_fence_chan *); + +int nv04_fence_create(struct drm_device *dev); +int nv04_fence_mthd(struct nouveau_channel *, u32, u32, u32); + +int nv10_fence_create(struct drm_device *dev); +int nv84_fence_create(struct drm_device *dev); +int nvc0_fence_create(struct drm_device *dev); + #endif -- cgit v1.2.3 From 906c033e276877c1374c9159976b05746af3c86d Mon Sep 17 00:00:00 2001 From: Ben Skeggs Date: Fri, 4 May 2012 16:25:47 +1000 Subject: drm/nouveau/fence: fix a race where fence->channel can disappear Signed-off-by: Ben Skeggs --- drivers/gpu/drm/nouveau/nouveau_fence.h | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'drivers/gpu/drm/nouveau/nouveau_fence.h') diff --git a/drivers/gpu/drm/nouveau/nouveau_fence.h b/drivers/gpu/drm/nouveau/nouveau_fence.h index ec9afa775ea7..82ba733393ae 100644 --- a/drivers/gpu/drm/nouveau/nouveau_fence.h +++ b/drivers/gpu/drm/nouveau/nouveau_fence.h @@ -34,7 +34,8 @@ struct nouveau_fence_chan { struct nouveau_fence_priv { struct nouveau_exec_engine engine; int (*emit)(struct nouveau_fence *); - int (*sync)(struct nouveau_fence *, struct nouveau_channel *); + int (*sync)(struct nouveau_fence *, struct nouveau_channel *, + struct nouveau_channel *); u32 (*read)(struct nouveau_channel *); }; -- cgit v1.2.3