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gpu: nvgpu: prod programming for elcg ce unit

Browse Source 
As part of nvgpu_ce_init_support, prod programming of
elcg ce unit is done using following function:
void nvgpu_cg_elcg_ce_load_enable(struct gk20a *g);

Also, nvgpu_cg_elcg_set_elcg_enabled extended to include
elcg_ce_load_gating_prod programming.

Jira NVGPU-6026

Change-Id: I00f29f877b5ac4dc9d3438930b674327dece1150
Signed-off-by: Seshendra Gadagottu <sgadagottu@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvgpu/+/2512495
Reviewed-by: svc-mobile-coverity <svc-mobile-coverity@nvidia.com>
Reviewed-by: svc-mobile-misra <svc-mobile-misra@nvidia.com>
Reviewed-by: svc-mobile-cert <svc-mobile-cert@nvidia.com>
Reviewed-by: Vedashree Vidwans <vvidwans@nvidia.com>
Reviewed-by: Seema Khowala <seemaj@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:
Seshendra Gadagottu
2021-04-08 17:03:14 -07:00
committed by mobile promotions
parent 44c4611fda
commit a54e34fd74
3 changed files with 46 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files

6
drivers/gpu/nvgpu/common/ce/ce.c
View File

@@ -1,5 +1,5 @@
/*
* Copyright (c) 2018-2020, NVIDIA CORPORATION. All rights reserved.
* Copyright (c) 2018-2021, NVIDIA CORPORATION. All rights reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
@@ -46,6 +46,10 @@ int nvgpu_ce_init_support(struct gk20a *g)
nvgpu_cg_blcg_ce_load_enable(g);
#if defined(CONFIG_NVGPU_HAL_NON_FUSA) && defined(CONFIG_NVGPU_NEXT)
nvgpu_cg_elcg_ce_load_enable(g);
#endif
if (g->ops.ce.init_prod_values != NULL) {
g->ops.ce.init_prod_values(g);
}

22
drivers/gpu/nvgpu/common/power_features/cg/cg.c
View File

@@ -490,6 +490,11 @@ void nvgpu_cg_elcg_set_elcg_enabled(struct gk20a *g, bool enable)
nvgpu_cg_set_mode(g, ELCG_MODE, ELCG_RUN);
}
}
#if defined(CONFIG_NVGPU_HAL_NON_FUSA) && defined(CONFIG_NVGPU_NEXT)
if (g->ops.cg.elcg_ce_load_gating_prod != NULL) {
g->ops.cg.elcg_ce_load_gating_prod(g, g->elcg_enabled);
}
#endif
nvgpu_mutex_release(&g->cg_pg_lock);
}
@@ -623,4 +628,21 @@ void nvgpu_cg_slcg_set_slcg_enabled(struct gk20a *g, bool enable)
done:
nvgpu_mutex_release(&g->cg_pg_lock);
}
void nvgpu_cg_elcg_ce_load_enable(struct gk20a *g)
{
nvgpu_log_fn(g, " ");
nvgpu_mutex_acquire(&g->cg_pg_lock);
if (!g->elcg_enabled) {
goto done;
}
#if defined(CONFIG_NVGPU_HAL_NON_FUSA) && defined(CONFIG_NVGPU_NEXT)
if (g->ops.cg.elcg_ce_load_gating_prod != NULL) {
g->ops.cg.elcg_ce_load_gating_prod(g, true);
}
#endif
done:
nvgpu_mutex_release(&g->cg_pg_lock);
}
#endif

19
drivers/gpu/nvgpu/include/nvgpu/power_features/cg.h
View File

@@ -447,6 +447,25 @@ void nvgpu_cg_slcg_therm_load_enable(struct gk20a *g);
*/
void nvgpu_cg_slcg_ce2_load_enable(struct gk20a *g);
/**
* @brief During nvgpu power-on, as part of CE initialization,
* this function is called to load register configuration
* for ELCG for CE.
*
* @param g [in] The GPU driver struct.
*
* Checks the platform software capability elcg_enabled and programs registers
* for configuring production gating values for ELCG for CE. This is called
* in #nvgpu_ce_init_support.
*
* Steps:
* - Acquire the mutex #cg_pg_lock.
* - Check if #elcg_enabled is set, else skip ELCG programming.
* - Load ELCG prod settings for CE.
* - Release the mutex #cg_pg_lock.
*/
void nvgpu_cg_elcg_ce_load_enable(struct gk20a *g);
#ifdef CONFIG_NVGPU_NON_FUSA
void nvgpu_cg_elcg_enable(struct gk20a *g);