gpu: nvgpu: rework TSG's channel list

Modify TSG's channel list as "ch_list" for all channels
instead of "ch_runnable_list" for only runnable list
We can traverse this list and check runnable status of
channel in active_channels to get runnable channels

Remove below APIs as they are no longer required :
gk20a_bind_runnable_channel_to_tsg()
gk20a_unbind_channel_from_tsg()

While closing the channel, call gk20a_tsg_unbind_channel()
to unbind the channel from TSG

bug 1470692

Change-Id: I0178fa74b3e8bb4e5c0b3e3b2b2f031491761ba7
Signed-off-by: Deepak Nibade <dnibade@nvidia.com>
Reviewed-on: http://git-master/r/449227
Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
Tested-by: Terje Bergstrom <tbergstrom@nvidia.com>

1 files changed, 3 insertions, 4 deletions

diff --git a/drivers/gpu/nvgpu/gk20a/tsg_gk20a.h b/drivers/gpu/nvgpu/gk20a/tsg_gk20a.h
index 63113b60..dd8679be 100644
--- a/drivers/gpu/nvgpu/gk20a/tsg_gk20a.h
+++ b/drivers/gpu/nvgpu/gk20a/tsg_gk20a.h
@@ -27,8 +27,7 @@ long gk20a_tsg_dev_ioctl(struct file *filp,
 
 int gk20a_init_tsg_support(struct gk20a *g, u32 tsgid);
 
-int gk20a_bind_runnable_channel_to_tsg(struct channel_gk20a *ch, int tsgid);
-int gk20a_unbind_channel_from_tsg(struct channel_gk20a *ch, int tsgid);
+int gk20a_tsg_unbind_channel(struct channel_gk20a *ch);
 
 struct tsg_gk20a {
         struct gk20a *g;
@@ -36,8 +35,8 @@ struct tsg_gk20a {
         bool in_use;
         int tsgid;
 
-        struct list_head ch_runnable_list;
-        int num_runnable_channels;
+        struct list_head ch_list;
+        int num_active_channels;
         struct mutex ch_list_lock;
 
         struct gr_ctx_desc *tsg_gr_ctx;