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gpu: nvgpu: Add api to get the gr_instance_id

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Added api to get the gr_instance_id from gr_syspipe_id.

JIRA NVGPU-5653

Change-Id: Ie4e931cb6d30a7ec4120d186ab8006cf2b604bd3
Signed-off-by: Lakshmanan M <lm@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvgpu/+/2414597
Reviewed-by: automaticguardword <automaticguardword@nvidia.com>
Reviewed-by: Automatic_Commit_Validation_User
Reviewed-by: svc-mobile-coverity <svc-mobile-coverity@nvidia.com>
Reviewed-by: Alex Waterman <alexw@nvidia.com>
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
GVS: Gerrit_Virtual_Submit
This commit is contained in:
Lakshmanan M
2020-09-16 19:10:40 +05:30
committed by Alex Waterman
parent 689cf24256
commit 56a73c8230
2 changed files with 29 additions and 0 deletions
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27
drivers/gpu/nvgpu/common/grmgr/grmgr.c
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@@ -396,3 +396,30 @@ u32 nvgpu_grmgr_get_gr_runlist_id(struct gk20a *g, u32 gpu_instance_id)
return U32_MAX;
}
u32 nvgpu_grmgr_get_gr_instance_id_for_syspipe(struct gk20a *g,
u32 gr_syspipe_id)
{
if (nvgpu_is_enabled(g, NVGPU_SUPPORT_MIG)) {
u32 gr_instance_id = 0U;
u32 index;
/* 0th entry is physical device gpu instance. */
for (index = 1U; index < g->mig.num_gpu_instances; ++index) {
struct nvgpu_gpu_instance *gpu_instance =
&g->mig.gpu_instance[index];
struct nvgpu_gr_syspipe *gr_syspipe =
&gpu_instance->gr_syspipe;
if (gr_syspipe->gr_syspipe_id == gr_syspipe_id) {
nvgpu_log(g, gpu_dbg_mig,
"gr_instance_id[%u] gr_syspipe_id[%u]",
gr_instance_id, gr_syspipe_id);
return gr_instance_id;
}
++gr_instance_id;
}
}
/* Default gr_instance_id is 0U for legacy mode. */
return 0U;
}