From 0c5b8cecf34d6b25e577475cc5e8c7169d63ba92 Mon Sep 17 00:00:00 2001 From: Ben Skeggs Date: Fri, 10 Aug 2012 14:02:44 +1000 Subject: [PATCH] drm/nouveau/fifo: add method to lookup fifo chid related to a given object Signed-off-by: Ben Skeggs --- drivers/gpu/drm/nouveau/core/engine/fifo/base.c | 16 ++++++++++++++++ .../gpu/drm/nouveau/core/include/engine/fifo.h | 1 + 2 files changed, 17 insertions(+) diff --git a/drivers/gpu/drm/nouveau/core/engine/fifo/base.c b/drivers/gpu/drm/nouveau/core/engine/fifo/base.c index edeb76ee648c..2a7c13d55aca 100644 --- a/drivers/gpu/drm/nouveau/core/engine/fifo/base.c +++ b/drivers/gpu/drm/nouveau/core/engine/fifo/base.c @@ -132,6 +132,21 @@ _nouveau_fifo_channel_wr32(struct nouveau_object *object, u32 addr, u32 data) iowrite32_native(data, chan->user + addr); } +int +nouveau_fifo_chid(struct nouveau_fifo *priv, struct nouveau_object *object) +{ + int engidx = nv_hclass(priv) & 0xff; + + while (object && object->parent) { + if ( nv_iclass(object->parent, NV_ENGCTX_CLASS) && + (nv_hclass(object->parent) & 0xff) == engidx) + return nouveau_fifo_chan(object)->chid; + object = object->parent; + } + + return -1; +} + void nouveau_fifo_destroy(struct nouveau_fifo *priv) { @@ -160,6 +175,7 @@ nouveau_fifo_create_(struct nouveau_object *parent, if (!priv->channel) return -ENOMEM; + priv->chid = nouveau_fifo_chid; spin_lock_init(&priv->lock); return 0; } diff --git a/drivers/gpu/drm/nouveau/core/include/engine/fifo.h b/drivers/gpu/drm/nouveau/core/include/engine/fifo.h index 65ee929a75f0..f2133872bd7c 100644 --- a/drivers/gpu/drm/nouveau/core/include/engine/fifo.h +++ b/drivers/gpu/drm/nouveau/core/include/engine/fifo.h @@ -70,6 +70,7 @@ struct nouveau_fifo { u16 min; u16 max; + int (*chid)(struct nouveau_fifo *, struct nouveau_object *); void (*pause)(struct nouveau_fifo *, unsigned long *); void (*start)(struct nouveau_fifo *, unsigned long *); }; -- GitLab