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gpu: nvgpu: fix engine reset in FECS trace

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In virtualization case, VM server is the only one
allowed to write to ctxsw ring buffer. It will
also generate an event in case of engine reset.
Only generate a tracepoint on Guest OS side.

EVLR-314

Change-Id: I2cb09780a9b41237fe196ef1f3515923f36a24a4
Signed-off-by: Thomas Fleury <tfleury@nvidia.com>
Reviewed-on: http://git-master/r/1130743
(cherry picked from commit 4bbf9538e2a3375eb86b2feea6c605c3eec2ca40)
Reviewed-on: http://git-master/r/1133614
(cherry picked from commit 2076d944db41b37143c27795b3cffd88e99e0b00)
Reviewed-on: http://git-master/r/1150046
Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
Tested-by: Terje Bergstrom <tbergstrom@nvidia.com>
This commit is contained in:
Thomas Fleury
2016-04-21 16:35:44 -07:00
committed by Terje Bergstrom
parent 4df6cd4a34
commit 47e3d2e905
5 changed files with 14 additions and 15 deletions
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2
include/uapi/linux/nvgpu.h
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@@ -1367,7 +1367,7 @@ struct nvgpu_as_map_buffer_batch_args {
#define NVGPU_CTXSW_TAG_SAVE_END 0x03
#define NVGPU_CTXSW_TAG_RESTORE_START 0x04
#define NVGPU_CTXSW_TAG_CONTEXT_START 0x05
#define NVGPU_CTXSW_TAG_RESET 0xfe
#define NVGPU_CTXSW_TAG_ENGINE_RESET 0xfe
#define NVGPU_CTXSW_TAG_INVALID_TIMESTAMP 0xff
#define NVGPU_CTXSW_TAG_LAST \
NVGPU_CTXSW_TAG_INVALID_TIMESTAMP