To achieve permanent fault coverage, the CTAs launched by
each kernel in the mission and redundant contexts must execute on
different hardware resources. This feature proposes modifications
in the software to modify the virtual SM id to TPC mapping across
the mission and redundant contexts. The virtual SM identifier to TPC
mapping is done by nvgpu when setting up the patch context.
The recommendation for the redundant setting is to offset the
assignment by one TPC, and not by one GPC. This will ensure that both
GPC and TPC diversity. The SM and Quadrant diversity will happen
naturally. For kernels with few CTAs, the diversity is guaranteed
to be 100%. In case of completely random CTA allocation,
e.g. large number of CTAs in the waiting queue, the diversity is
1 - 1/#SM, or 87.5% for GV11B, 97.9% for TU104.
Added NvGpu CFLAGS to enable/disable the SM diversity support
"CONFIG_NVGPU_SM_DIVERSITY".
This support is only enabled on gv11b and tu104 QNX non safety build.
JIRA NVGPU-4685
Change-Id: I8e3eaa72d8cf7aff97f61e4c2abd10b2afe0fe8b
Signed-off-by: Lakshmanan M <lm@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/2268026
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Reviewed-by: Shashank Singh <shashsingh@nvidia.com>
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Add doxygen documentation for private GR structures defined in:
gr/ctx_priv.h
gr/global_ctx_priv.h
gr/obj_ctx_priv.h
gr/subctx_priv.h
Compile out struct zcull_ctx_desc with flag CONFIG_NVGPU_GRAPHICS.
Compile out struct pm_ctx_desc with flag CONFIG_NVGPU_DEBUGGER.
Compile out field golden_img_loaded with flag CONFIG_NVGPU_NON_FUSA
since it is only used for VSERVER.
Jira NVGPU-4028
Change-Id: Ic63e751ee28c6b645cc13993b16f701a9dbcf3e0
Signed-off-by: Deepak Nibade <dnibade@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/2201372
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Debug boolean flag dump_ctxsw_stats_on_channel_close is right now stored
in gr_gk20a.ctx_vars struct
This flag logically is property of gr.ctx units since it indicates
whether each context should dump ctxsw stats on channel/context close
Move this flag to struct nvgpu_gr_ctx_desc and remove it from
gr_gk20a.ctx_vars
Expose below API from gr.ctx unit to check if flag is set
nvgpu_gr_ctx_desc_dump_ctxsw_stats_on_channel_close()
Move debugfs creation code to create corresponding debugfs to
gr_gk20a_debugfs_init() and change debugfs type from "u32" to "file"
Struct gr.gr_ctx_desc is created only during first poweron.
Return error if this struct is not available.
Remove unnecessary initialization of this variable from platform
specific probe functions
Jira NVGPU-3112
Change-Id: Id675e047237f82e9b8198a42082e99c95824578f
Signed-off-by: Deepak Nibade <dnibade@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/2099399
Reviewed-by: svc-mobile-coverity <svc-mobile-coverity@nvidia.com>
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Debug boolean flags force_preemption_gfxp and force_preemption_cilp are
right now stored in gr_gk20a.ctx_vars struct
These flags logically are property of gr.ctx units since they indicate
whether each context should be forced to gfxp/cilp preemption mode by
default
Move these flags to struct nvgpu_gr_ctx_desc and remove them from
gr_gk20a.ctx_vars
Expose below APIs from gr.ctx unit to check if flags are set
nvgpu_gr_ctx_desc_force_preemption_gfxp()
nvgpu_gr_ctx_desc_force_preemption_cilp()
Move debugfs creation code to create corresponding debugfs to
gr_gk20a_debugfs_init() and change debugfs type from "u32" to "file"
Struct gr.gr_ctx_desc is created only during first poweron.
Return error if this struct is not available.
Remove unnecessary initialization of these variables from platform
specific probe functions
Jira NVGPU-3112
Change-Id: I8b2de27f0c71dd2ea5abcf94221c2e15c80073ea
Signed-off-by: Deepak Nibade <dnibade@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/2099398
Reviewed-by: svc-mobile-coverity <svc-mobile-coverity@nvidia.com>
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