This CL covers the following code changes,
1) Added api to get the gr_config per gr_instance_id basis.
2) Added api to covert from gpu_instance_id to gr_instance_id.
3) Modified nvgpu_gr_exec_with_ret_for_instance() utility to handle
generic data return type.
JIRA NVGPU-5662
JIRA NVGPU-5663
Change-Id: I4ab732e15cdbda25672975f99e23b5e5d27decb0
Signed-off-by: Lakshmanan M <lm@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvgpu/+/2413195
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Add macros to get current GR instance id and the pointer
nvgpu_gr_get_cur_instance_ptr()
nvgpu_gr_get_cur_instance_id()
This approach makes sure that the caller is getting GR instance pointer
under mutex g->mig.gr_syspipe_lock in MIG mode. Trying to access
current GR instance outside of this lock in MIG mode dumps a warning.
Return 0th instance in case MIG mode is disabled.
Use these macros in nvgpu instead of direct reference to
g->mig.cur_gr_instance.
Store instance id in struct nvgpu_gr. This is to retrieve GR instance
id in functions where struct nvgpu_gr pointer is already available.
Jira NVGPU-5648
Change-Id: Ibfef6a22371bfdccfdc2a7d636b0a3e8d0eff6d9
Signed-off-by: Deepak Nibade <dnibade@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvgpu/+/2413140
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Get number of SMs from GR instance specific nvgpu_gr_config pointer
instead of global SM count in below functions :
nvgpu_gr_fs_state_init()
gv11b_gr_init_sm_id_config()
Update nvgpu_gr_config_get_gpc_skip_mask() to return 0 in case gpc_index
is greater than available gpc_count. This is not MIG specific, but based
on code review possible even today for existing chips.
See gm20b_gr_init_pd_skip_table_gpc()
Update nvgpu_gr_get_override_ecc_val() to return GR instance specific
value.
Execute gr_init_setup_hw() for each GR instance.
Disable below failing unit tests:
nvgpu_gr_fs_state.test_gr_fs_state_error_injection
nvgpu_gr_init.test_gr_init_hal_config_error_injection
Jira NVGPU-5648
Change-Id: Ie8f1c0c304c634756786d85facf336a5c9ae8195
Signed-off-by: Deepak Nibade <dnibade@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvgpu/+/2410702
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GVS: Gerrit_Virtual_Submit
Add new API nvgpu_grmgr_get_num_gr_instances() that returns number of
GR instance enumerated by GR manager. This just returns number of sys
pipes enabled since it is same as number of GR instances.
For consistency until common.gr supports multiple GR instances
completely, add a temporary macro NVGPU_GR_NUM_INSTANCES and set it
to 1. If this macro is changed to 0 (for local MIG testing), fall
back to use nvgpu_grmgr_get_num_gr_instances() to get enumerated number
of GR instances.
Use a for loop to initialize other variables of struct nvgpu_gr.
Remove unnecessary NULL check in nvgpu_gr_alloc() since struct gk20a
pointer can never be NULL in this path. Also remove corresponding unit
test code.
Jira NVGPU-5648
Change-Id: Id151d634a23235381229044f2a9af89e390886f2
Signed-off-by: Deepak Nibade <dnibade@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvgpu/+/2400151
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Overriding of ECC feature is used only in Linux through device
tree fuse overrides. It's not supported in QNX. Hence compile
out below functions from safety build.
nvgpu_gr_get_override_ecc_val()
nvgpu_gr_override_ecc_val()
Move nvgpu_gr_get_golden_image_ptr() under CONFIG_NVGPU_DEBUGGER
Re-arrange all functions in gr_utils.c/h and move all non-safe
functions towards end of file.
Jira NVGPU-4028
Change-Id: Ie56fcf78c32a9b23d2e5f5b51701c5f8ccad62ec
Signed-off-by: Deepak Nibade <dnibade@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/2199507
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