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 v1.2.1