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gpu: nvgpu: add tsg_open HAL interface

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Add HAL interface for TSG open, which is intended to
be called from the exisiting gk20a_tsg_open function.

The tsg_open entryoint is only implemented for vgpu,
as the server needs to clear metadata when a tsg is opened.

Bug 200215060

Change-Id: Icc8fd602f31e52d9fa9b2e7786b665b9e7b9294e
Signed-off-by: Sachit Kadle <skadle@nvidia.com>
Reviewed-on: http://git-master/r/1249218
(cherry picked from commit 35c86f7c796c6574d3dc336e20012ea5c16d7cb4)
Reviewed-on: http://git-master/r/1256468
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
This commit is contained in:
Sachit Kadle
2016-11-04 17:48:59 -07:00
committed by mobile promotions
parent 6ea4a81f4d
commit c1750f45f5
4 changed files with 44 additions and 0 deletions
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1
drivers/gpu/nvgpu/gk20a/gk20a.h
View File

@@ -392,6 +392,7 @@ struct gpu_ops {
int (*tsg_bind_channel)(struct tsg_gk20a *tsg,
struct channel_gk20a *ch);
int (*tsg_unbind_channel)(struct channel_gk20a *ch);
int (*tsg_open)(struct tsg_gk20a *tsg);
u32 (*eng_runlist_base_size)(void);
int (*init_engine_info)(struct fifo_gk20a *f);
u32 (*runlist_entry_size)(void);

14
drivers/gpu/nvgpu/gk20a/tsg_gk20a.c
View File

@@ -402,6 +402,7 @@ int gk20a_tsg_open(struct gk20a *g, struct file *filp)
{
struct tsg_gk20a *tsg;
struct device *dev;
int err;
dev = dev_from_gk20a(g);
@@ -426,11 +427,24 @@ int gk20a_tsg_open(struct gk20a *g, struct file *filp)
filp->private_data = tsg;
if (g->ops.fifo.tsg_open) {
err = g->ops.fifo.tsg_open(tsg);
if (err) {
gk20a_err(dev, "tsg %d fifo open failed %d",
tsg->tsgid, err);
goto clean_up;
}
}
gk20a_dbg(gpu_dbg_fn, "tsg opened %d\n", tsg->tsgid);
gk20a_sched_ctrl_tsg_added(g, tsg);
return 0;
clean_up:
kref_put(&tsg->refcount, gk20a_tsg_release);
return err;
}
int gk20a_tsg_dev_open(struct inode *inode, struct file *filp)