Files
linux-nvgpu/drivers/gpu/nvgpu/common/vbios/nvlink_bios.c
Divya Singhatwaria 20fcf813dd gpu: nvgpu: Use sw ops for BIOS
Some functions are not accessing hardware directly
but are being called using HAL ops: For example

.init = gv100_bios_init,
.preos_wait_for_halt = gv100_bios_preos_wait_for_halt,
.preos_reload_check = gv100_bios_preos_reload_check,
.devinit = gp106_bios_devinit,
.preos = gp106_bios_preos,
.verify_devinit = NULL,

This was being called as:
g->ops.bios.init(g)
g->ops.bios.preos_wait_for_halt(g)
g->ops.bios.preos_reload_check(g)
g->ops.bios.preos(g)
g->ops.bios.devinit(g)
g->ops.bios.verify_devinit(g)

Change the function access by using sw ops, like:
Create new function: nvgpu_bios_sw_init()
and based on hardware chip call the chip specific
bios sw init function: nvgpu_gv100_bios_sw_init()
and nvgpu_tu104_bios_sw_init()to assign the sw
ops

JIRA NVGPU-2071

Change-Id: Ibfcd9b225a7bc184737abdd94c2e54190fcd90a0
Signed-off-by: Divya Singhatwaria <dsinghatwari@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/2108526
GVS: Gerrit_Virtual_Submit
Reviewed-by: Mahantesh Kumbar <mkumbar@nvidia.com>
Reviewed-by: Vaibhav Kachore <vkachore@nvidia.com>
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
2019-05-28 02:05:43 -07:00

106 lines
3.4 KiB
C

/*
* Copyright (c) 2015-2019, 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"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*/
#include <nvgpu/gk20a.h>
#include <nvgpu/nvlink_bios.h>
#include <nvgpu/string.h>
#include <nvgpu/bios.h>
int nvgpu_bios_get_nvlink_config_data(struct gk20a *g)
{
int ret = 0;
struct nvlink_config_data_hdr_v1 config;
if (g->bios->nvlink_config_data_offset == 0U) {
return -EINVAL;
}
nvgpu_memcpy((u8 *)&config,
&g->bios->data[g->bios->nvlink_config_data_offset],
sizeof(config));
if (config.version != NVLINK_CONFIG_DATA_HDR_VER_10) {
nvgpu_err(g, "unsupported nvlink bios version: 0x%x",
config.version);
return -EINVAL;
}
switch (config.hdr_size) {
case NVLINK_CONFIG_DATA_HDR_12_SIZE:
g->nvlink.ac_coupling_mask = config.ac_coupling_mask;
g->nvlink.train_at_boot = config.train_at_boot;
g->nvlink.link_disable_mask = config.link_disable_mask;
g->nvlink.link_mode_mask = config.link_mode_mask;
g->nvlink.link_refclk_mask = config.link_refclk_mask;
break;
case NVLINK_CONFIG_DATA_HDR_11_SIZE:
g->nvlink.train_at_boot = config.train_at_boot;
g->nvlink.link_disable_mask = config.link_disable_mask;
g->nvlink.link_mode_mask = config.link_mode_mask;
g->nvlink.link_refclk_mask = config.link_refclk_mask;
break;
case NVLINK_CONFIG_DATA_HDR_10_SIZE:
g->nvlink.link_disable_mask = config.link_disable_mask;
g->nvlink.link_mode_mask = config.link_mode_mask;
g->nvlink.link_refclk_mask = config.link_refclk_mask;
break;
default:
nvgpu_err(g, "invalid nvlink bios config size");
ret = -EINVAL;
break;
}
return ret;
}
int nvgpu_bios_get_lpwr_nvlink_table_hdr(struct gk20a *g)
{
struct lpwr_nvlink_table_hdr_v1 hdr;
u8 *lpwr_nvlink_tbl_hdr_ptr = NULL;
lpwr_nvlink_tbl_hdr_ptr = (u8 *)nvgpu_bios_get_perf_table_ptrs(g,
nvgpu_bios_get_bit_token(g,
NVGPU_BIOS_PERF_TOKEN),
LPWR_NVLINK_TABLE);
if (lpwr_nvlink_tbl_hdr_ptr == NULL) {
nvgpu_err(g, "Invalid pointer to LPWR_NVLINK_TABLE\n");
return -EINVAL;
}
nvgpu_memcpy((u8 *)&hdr, lpwr_nvlink_tbl_hdr_ptr,
LPWR_NVLINK_TABLE_10_HDR_SIZE_06);
if (hdr.version != LWPR_NVLINK_TABLE_10_HDR_VER_10) {
nvgpu_err(g, "Unsupported LPWR_NVLINK_TABLE version: 0x%x",
hdr.version);
return -EINVAL;
}
g->nvlink.initpll_ordinal =
BIOS_GET_FIELD(u8, hdr.line_rate_initpll_ordinal,
VBIOS_LPWR_NVLINK_TABLE_HDR_INITPLL_ORDINAL);
nvgpu_log(g, gpu_dbg_nvlink, " Nvlink initpll_ordinal: 0x%x",
g->nvlink.initpll_ordinal);
return 0;
}