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
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
This CL covers the following minor modifications,
* Added input validation in the beginning of gr remap window call.
* Changed gr_syspipe_lock/unlock sequence to handle legacy GR remap
window sequence.
JIRA NVGPU-5645
JIRA NVGPU-5646
Change-Id: I48758444096d2a962dbf087bcb211b7f8eacf326
Signed-off-by: Lakshmanan M <lm@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvgpu/+/2399603
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
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