From dfac8ce70464413c0e3748634c57d49950e71933 Mon Sep 17 00:00:00 2001 From: Deepak Nibade Date: Tue, 29 Mar 2016 15:01:25 +0530 Subject: gpu: nvgpu: support binding multiple channels to a debug session We currently bind only one channel to a debug session But some use cases might need multiple channels bound to same debug session Add this support by adding a list of channels to debug session. List structure is implemented as struct dbg_session_channel_data List node dbg_s_list_node is currently defined in struct dbg_session_gk20a. But this is inefficient when we need to add debug session to multiple channels Hence add new reference structure dbg_session_data to store dbg_session pointer and list entry For each NVGPU_DBG_GPU_IOCTL_BIND_CHANNEL call, create two reference structure dbg_session_channel_data for channel and dbg_session_data for debug session and bind them together Define API nvgpu_dbg_gpu_get_session_channel() which will get first channel in the list of debug session Use this API wherever we refer to channel bound to debug session Remove dbg_sessions define in struct gk20a since it is not being used anywhere Add new API NVGPU_DBG_GPU_IOCTL_UNBIND_CHANNEL to support unbinding of channel from debug sesssion Bug 200156699 Change-Id: I3bfa6f9cd5b90e7254a75c7e64ac893739776b7f Signed-off-by: Deepak Nibade Reviewed-on: http://git-master/r/1120331 GVS: Gerrit_Virtual_Submit Reviewed-by: Terje Bergstrom --- drivers/gpu/nvgpu/gk20a/gk20a.h | 1 - 1 file changed, 1 deletion(-) (limited to 'drivers/gpu/nvgpu/gk20a/gk20a.h') diff --git a/drivers/gpu/nvgpu/gk20a/gk20a.h b/drivers/gpu/nvgpu/gk20a/gk20a.h index d1ce6afb..b03e779b 100644 --- a/drivers/gpu/nvgpu/gk20a/gk20a.h +++ b/drivers/gpu/nvgpu/gk20a/gk20a.h @@ -647,7 +647,6 @@ struct gk20a { /* held while manipulating # of debug/profiler sessions present */ /* also prevents debug sessions from attaching until released */ struct mutex dbg_sessions_lock; - int dbg_sessions; /* number attached */ int dbg_powergating_disabled_refcount; /*refcount for pg disable */ int dbg_timeout_disabled_refcount; /*refcount for timeout disable */ -- cgit v1.2.2