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65a7896987
Currently nvgpu reads the temperature by reading the
NV_THERM_I2CS_SENSOR_00 register. Below are the issues
with current approach
1) NV_THERM_I2CS_SENSOR_00 doesn't support
fractional precision which is POR.
2) It doesn't support negative temperatures which
is required for Auto.
3) It doesn't take into account the right POR
sensor in VFE VBIOS tables.
From therm channel get status interface we can read the
current temperature from PMU.
NVBUG - 200549047
Change-Id: I2fb21926208876f3d3bebe3f2dee08edafedbc7d
Signed-off-by: rmylavarapu <rmylavarapu@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/2196224
Reviewed-by: svc-mobile-coverity <svc-mobile-coverity@nvidia.com>
GVS: Gerrit_Virtual_Submit
Reviewed-by: Vijayakumar Subbu <vsubbu@nvidia.com>
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
38 lines
1.4 KiB
C
38 lines
1.4 KiB
C
/*
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* Copyright (c) 2019, 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/io.h>
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#include <nvgpu/gk20a.h>
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#include <nvgpu/pmu/therm.h>
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#include "therm_tu104.h"
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#include <nvgpu/hw/tu104/hw_therm_tu104.h>
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#include <nvgpu/utils.h>
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void tu104_get_internal_sensor_limits(s32 *max_24_8, s32 *min_24_8)
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{
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*max_24_8 = (0x87 << 8);
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*min_24_8 = (((u32)-216) << 8);
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}
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