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/*
* GP10B Graphics
*
* Copyright (c) 2016, NVIDIA CORPORATION. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
* version 2, as published by the Free Software Foundation.
*
* This program is distributed in the hope it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "gk20a/gk20a.h"
#include <nvgpu/hw/gp10b/hw_fuse_gp10b.h>
#include <nvgpu/hw/gp10b/hw_gr_gp10b.h>
static u64 gp10b_detect_ecc_enabled_units(struct gk20a *g)
{
u64 ecc_enabled_units = 0;
u32 opt_ecc_en = gk20a_readl(g, fuse_opt_ecc_en_r());
u32 opt_feature_fuses_override_disable =
gk20a_readl(g,
fuse_opt_feature_fuses_override_disable_r());
u32 fecs_feature_override_ecc =
gk20a_readl(g,
gr_fecs_feature_override_ecc_r());
if (opt_feature_fuses_override_disable) {
if (opt_ecc_en)
ecc_enabled_units = NVGPU_GPU_FLAGS_ALL_ECC_ENABLED;
else
ecc_enabled_units = 0;
} else {
/* SM LRF */
if (gr_fecs_feature_override_ecc_sm_lrf_override_v(
fecs_feature_override_ecc)) {
if (gr_fecs_feature_override_ecc_sm_lrf_v(
fecs_feature_override_ecc)) {
ecc_enabled_units |=
NVGPU_GPU_FLAGS_ECC_ENABLED_SM_LRF;
}
} else {
if (opt_ecc_en) {
ecc_enabled_units |=
NVGPU_GPU_FLAGS_ECC_ENABLED_SM_LRF;
}
}
/* SM SHM */
if (gr_fecs_feature_override_ecc_sm_shm_override_v(
fecs_feature_override_ecc)) {
if (gr_fecs_feature_override_ecc_sm_shm_v(
fecs_feature_override_ecc)) {
ecc_enabled_units |=
NVGPU_GPU_FLAGS_ECC_ENABLED_SM_SHM;
}
} else {
if (opt_ecc_en) {
ecc_enabled_units |=
NVGPU_GPU_FLAGS_ECC_ENABLED_SM_SHM;
}
}
/* TEX */
if (gr_fecs_feature_override_ecc_tex_override_v(
fecs_feature_override_ecc)) {
if (gr_fecs_feature_override_ecc_tex_v(
fecs_feature_override_ecc)) {
ecc_enabled_units |=
NVGPU_GPU_FLAGS_ECC_ENABLED_TEX;
}
} else {
if (opt_ecc_en) {
ecc_enabled_units |=
NVGPU_GPU_FLAGS_ECC_ENABLED_TEX;
}
}
/* LTC */
if (gr_fecs_feature_override_ecc_ltc_override_v(
fecs_feature_override_ecc)) {
if (gr_fecs_feature_override_ecc_ltc_v(
fecs_feature_override_ecc)) {
ecc_enabled_units |=
NVGPU_GPU_FLAGS_ECC_ENABLED_LTC;
}
} else {
if (opt_ecc_en) {
ecc_enabled_units |=
NVGPU_GPU_FLAGS_ECC_ENABLED_LTC;
}
}
}
return ecc_enabled_units;
}
int gp10b_init_gpu_characteristics(struct gk20a *g)
{
gk20a_init_gpu_characteristics(g);
g->gpu_characteristics.flags |= gp10b_detect_ecc_enabled_units(g);
return 0;
}
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