/*
* GP106 FUSE
*
* Copyright (c) 2017-2018, 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/enabled.h>
#include <nvgpu/io.h>
#include <nvgpu/gk20a.h>
#include "fuse_gp106.h"
#include <nvgpu/hw/gp106/hw_fuse_gp106.h>
int gp106_fuse_check_priv_security(struct gk20a *g)
{
__nvgpu_set_enabled(g, NVGPU_SEC_PRIVSECURITY, true);
__nvgpu_set_enabled(g, NVGPU_SEC_SECUREGPCCS, true);
return 0;
}
u32 gp106_fuse_read_vin_cal_fuse_rev(struct gk20a *g)
{
return fuse_vin_cal_fuse_rev_data_v(
gk20a_readl(g, fuse_vin_cal_fuse_rev_r()));
}
u32 gp106_fuse_read_vin_cal_slope_intercept_fuse(struct gk20a *g,
u32 vin_id, u32 *slope,
u32 *intercept)
{
u32 data = 0;
u32 interceptdata = 0;
u32 slopedata = 0;
u32 gpc0data;
u32 gpc0slopedata;
u32 gpc0interceptdata;
/* read gpc0 irrespective of vin id */
gpc0data = gk20a_readl(g, fuse_vin_cal_gpc0_r());
if (gpc0data == 0xFFFFFFFF)
return -EINVAL;
switch (vin_id) {
case CTRL_CLK_VIN_ID_GPC0:
break;
case CTRL_CLK_VIN_ID_GPC1:
data = gk20a_readl(g, fuse_vin_cal_gpc1_delta_r());
break;
case CTRL_CLK_VIN_ID_GPC2:
data = gk20a_readl(g, fuse_vin_cal_gpc2_delta_r());
break;
case CTRL_CLK_VIN_ID_GPC3:
data = gk20a_readl(g, fuse_vin_cal_gpc3_delta_r());
break;
case CTRL_CLK_VIN_ID_GPC4:
data = gk20a_readl(g, fuse_vin_cal_gpc4_delta_r());
break;
case CTRL_CLK_VIN_ID_GPC5:
data = gk20a_readl(g, fuse_vin_cal_gpc5_delta_r());
break;
case CTRL_CLK_VIN_ID_SYS:
case CTRL_CLK_VIN_ID_XBAR:
case CTRL_CLK_VIN_ID_LTC:
data = gk20a_readl(g, fuse_vin_cal_shared_delta_r());
break;
case CTRL_CLK_VIN_ID_SRAM:
data = gk20a_readl(g, fuse_vin_cal_sram_delta_r());
break;
default:
return -EINVAL;
}
if (data == 0xFFFFFFFF)
return -EINVAL;
gpc0interceptdata = (fuse_vin_cal_gpc0_icpt_int_data_v(gpc0data) <<
fuse_vin_cal_gpc0_icpt_frac_data_s()) +
fuse_vin_cal_gpc0_icpt_frac_data_v(gpc0data);
gpc0interceptdata = (gpc0interceptdata * 1000U) >>
fuse_vin_cal_gpc0_icpt_frac_data_s();
switch (vin_id) {
case CTRL_CLK_VIN_ID_GPC0:
break;
case CTRL_CLK_VIN_ID_GPC1:
case CTRL_CLK_VIN_ID_GPC2:
case CTRL_CLK_VIN_ID_GPC3:
case CTRL_CLK_VIN_ID_GPC4:
case CTRL_CLK_VIN_ID_GPC5:
case CTRL_CLK_VIN_ID_SYS:
case CTRL_CLK_VIN_ID_XBAR:
case CTRL_CLK_VIN_ID_LTC:
interceptdata = (fuse_vin_cal_gpc1_delta_icpt_int_data_v(data) <<
fuse_vin_cal_gpc1_delta_icpt_frac_data_s()) +
fuse_vin_cal_gpc1_delta_icpt_frac_data_v(data);
interceptdata = (interceptdata * 1000U) >>
fuse_vin_cal_gpc1_delta_icpt_frac_data_s();
break;
case CTRL_CLK_VIN_ID_SRAM:
interceptdata = (fuse_vin_cal_sram_delta_icpt_int_data_v(data) <<
fuse_vin_cal_sram_delta_icpt_frac_data_s()) +
fuse_vin_cal_sram_delta_icpt_frac_data_v(data);
interceptdata = (interceptdata * 1000U) >>
fuse_vin_cal_sram_delta_icpt_frac_data_s();
break;
default:
return -EINVAL;
}
if (fuse_vin_cal_gpc1_delta_icpt_sign_data_v(data))
*intercept = gpc0interceptdata - interceptdata;
else
*intercept = gpc0interceptdata + interceptdata;
/* slope */
gpc0slopedata = (fuse_vin_cal_gpc0_slope_int_data_v(gpc0data) <<
fuse_vin_cal_gpc0_slope_frac_data_s()) +
fuse_vin_cal_gpc0_slope_frac_data_v(gpc0data);
gpc0slopedata = (gpc0slopedata * 1000U) >>
fuse_vin_cal_gpc0_slope_frac_data_s();
switch (vin_id) {
case CTRL_CLK_VIN_ID_GPC0:
break;
case CTRL_CLK_VIN_ID_GPC1:
case CTRL_CLK_VIN_ID_GPC2:
case CTRL_CLK_VIN_ID_GPC3:
case CTRL_CLK_VIN_ID_GPC4:
case CTRL_CLK_VIN_ID_GPC5:
case CTRL_CLK_VIN_ID_SYS:
case CTRL_CLK_VIN_ID_XBAR:
case CTRL_CLK_VIN_ID_LTC:
case CTRL_CLK_VIN_ID_SRAM:
slopedata =
(fuse_vin_cal_gpc1_delta_slope_int_data_v(data)) * 1000;
break;
default:
return -EINVAL;
}
if (fuse_vin_cal_gpc1_delta_slope_sign_data_v(data))
*slope = gpc0slopedata - slopedata;
else
*slope = gpc0slopedata + slopedata;
return 0;
}
u32 gp106_fuse_read_vin_cal_gain_offset_fuse(struct gk20a *g,
u32 vin_id, s8 *gain,
s8 *offset)
{
u32 reg_val = 0;
u32 data = 0;
switch (vin_id) {
case CTRL_CLK_VIN_ID_GPC0:
reg_val = gk20a_readl(g, fuse_vin_cal_gpc0_r());
break;
case CTRL_CLK_VIN_ID_GPC1:
reg_val = gk20a_readl(g, fuse_vin_cal_gpc1_delta_r());
break;
case CTRL_CLK_VIN_ID_GPC2:
reg_val = gk20a_readl(g, fuse_vin_cal_gpc2_delta_r());
break;
case CTRL_CLK_VIN_ID_GPC3:
reg_val = gk20a_readl(g, fuse_vin_cal_gpc3_delta_r());
break;
case CTRL_CLK_VIN_ID_GPC4:
reg_val = gk20a_readl(g, fuse_vin_cal_gpc4_delta_r());
break;
case CTRL_CLK_VIN_ID_GPC5:
reg_val = gk20a_readl(g, fuse_vin_cal_gpc5_delta_r());
break;
case CTRL_CLK_VIN_ID_SYS:
case CTRL_CLK_VIN_ID_XBAR:
case CTRL_CLK_VIN_ID_LTC:
reg_val = gk20a_readl(g, fuse_vin_cal_shared_delta_r());
break;
case CTRL_CLK_VIN_ID_SRAM:
reg_val = gk20a_readl(g, fuse_vin_cal_sram_delta_r());
break;
default:
return -EINVAL;
}
if (reg_val == 0xFFFFFFFF) {
return -EINVAL;
}
data = (reg_val >> 16U) & 0x1fU;
*gain = (s8)data;
data = reg_val & 0x7fU;
*offset = (s8)data;
return 0;
}
