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deaa196fd0
No client need the dram_clk_to_mc_clk, tegra_dram_types functions from mc-utils. Hence remove these functions. get_dram_num_channels is needed by resman team, hence update it to return number of channels for t264. Bug 4090660 Change-Id: I3e7571be73cfd94b3e2feebb6320a57b46b5fd48 Signed-off-by: Ketan Patil <ketanp@nvidia.com> Reviewed-on: https://git-master.nvidia.com/r/c/linux-t264/+/3047611 Reviewed-by: Pritesh Raithatha <praithatha@nvidia.com> GVS: Gerrit_Virtual_Submit <buildbot_gerritrpt@nvidia.com>
51 lines
1.4 KiB
C
51 lines
1.4 KiB
C
// SPDX-License-Identifier: GPL-2.0
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// Copyright (c) 2022-2024, NVIDIA CORPORATION. All rights reserved.
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#ifndef __TEGRA_MC_UTILS_H
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#define __TEGRA_MC_UTILS_H
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struct mc_utils_ops {
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unsigned long (*emc_freq_to_bw)(unsigned long freq);
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unsigned long (*emc_bw_to_freq)(unsigned long bw);
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u8 (*get_dram_num_channels)(void);
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};
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/*
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* Utility API to convert the given frequency to Bandwidth.
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*
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* @freq Frequency to convert. It can be in any unit - the resulting Bandwidth
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* will be in the same unit as passed. E.g KHz leads to KBps and Hz
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* leads to Bps.
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*
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* Converts EMC clock frequency into theoretical BW. This
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* does not account for a realistic utilization of the EMC bus. That is the
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* various overheads (refresh, bank commands, etc) that a real system sees
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* are not computed.
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*
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* Return: Converted Bandwidth.
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*/
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unsigned long emc_freq_to_bw(unsigned long freq);
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/*
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* Utility API to convert the given Bandwidth to frequency.
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*
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* @bw Bandwidth to convert. It can be in any unit - the resulting frequency
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* will be in the same unit as passed. E.g KBps leads to KHz and Bps leads
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* to Hz.
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*
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* Converts BW into theoretical EMC clock frequency.
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*
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* Return: Converted Frequency.
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*/
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unsigned long emc_bw_to_freq(unsigned long bw);
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/*
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* Return Number of channels of dram.
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*
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* Return number of dram channels
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*
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* Return: dram channels.
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*/
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u8 get_dram_num_channels(void);
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#endif /* __TEGRA_MC_UTILS_H */
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