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26406a070d
Xavier Chip Product POR was updated to 20G only. No more qual work happening for 16G. So we do not plan to support 16G. Now that we have a single speed left, remove the code added to support nvlink speed from VBIOS as it is redundant. JIRA NVGPU-2964 Change-Id: Icd71ebb8271240818e36d40bf73c60f0c5beb6bf Signed-off-by: tkudav <tkudav@nvidia.com> Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvgpu/+/2284175 Tested-by: mobile promotions <svcmobile_promotions@nvidia.com> Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
74 lines
2.6 KiB
C
74 lines
2.6 KiB
C
/*
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* Copyright (c) 2015-2020, NVIDIA CORPORATION. All rights reserved.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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* DEALINGS IN THE SOFTWARE.
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*/
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#include <nvgpu/gk20a.h>
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#include <nvgpu/nvlink_bios.h>
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#include <nvgpu/string.h>
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#include <nvgpu/bios.h>
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int nvgpu_bios_get_nvlink_config_data(struct gk20a *g)
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{
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int ret = 0;
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struct nvlink_config_data_hdr_v1 config;
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if (g->bios->nvlink_config_data_offset == 0U) {
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return -EINVAL;
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}
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nvgpu_memcpy((u8 *)&config,
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&g->bios->data[g->bios->nvlink_config_data_offset],
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sizeof(config));
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if (config.version != NVLINK_CONFIG_DATA_HDR_VER_10) {
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nvgpu_err(g, "unsupported nvlink bios version: 0x%x",
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config.version);
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return -EINVAL;
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}
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switch (config.hdr_size) {
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case NVLINK_CONFIG_DATA_HDR_12_SIZE:
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g->nvlink.ac_coupling_mask = config.ac_coupling_mask;
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g->nvlink.train_at_boot = config.train_at_boot;
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g->nvlink.link_disable_mask = config.link_disable_mask;
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g->nvlink.link_mode_mask = config.link_mode_mask;
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g->nvlink.link_refclk_mask = config.link_refclk_mask;
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break;
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case NVLINK_CONFIG_DATA_HDR_11_SIZE:
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g->nvlink.train_at_boot = config.train_at_boot;
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g->nvlink.link_disable_mask = config.link_disable_mask;
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g->nvlink.link_mode_mask = config.link_mode_mask;
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g->nvlink.link_refclk_mask = config.link_refclk_mask;
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break;
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case NVLINK_CONFIG_DATA_HDR_10_SIZE:
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g->nvlink.link_disable_mask = config.link_disable_mask;
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g->nvlink.link_mode_mask = config.link_mode_mask;
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g->nvlink.link_refclk_mask = config.link_refclk_mask;
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break;
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default:
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nvgpu_err(g, "invalid nvlink bios config size");
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ret = -EINVAL;
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break;
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}
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return ret;
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}
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