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69ec2dcff7
For EMC frequency scaling, prior to ga10b, nvgpu driver was using BWMGR. On ga10b+, BWMGR support is deprecated and moved to Linux ICC framework. Jira NVGPU-7312 Bug 3514055 Bug 200766984 Change-Id: Ib1f87afe021414dfc563e007823f93098937fe59 Signed-off-by: Johnny Liu <johnliu@nvidia.com> Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvgpu/+/2706374 Reviewed-by: svcacv <svcacv@nvidia.com> Reviewed-by: svc-mobile-coverity <svc-mobile-coverity@nvidia.com> Reviewed-by: svc-mobile-cert <svc-mobile-cert@nvidia.com> Reviewed-by: Rajkumar Kasirajan <rkasirajan@nvidia.com> Reviewed-by: Sagar Kamble <skamble@nvidia.com> Reviewed-by: Vijayakumar Subbu <vsubbu@nvidia.com> GVS: Gerrit_Virtual_Submit
58 lines
2.0 KiB
C
58 lines
2.0 KiB
C
/*
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* GP10B Platform (SoC) Interface
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*
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* Copyright (c) 2014-2022, NVIDIA Corporation. All rights reserved.
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms and conditions of the GNU General Public License,
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* version 2, as published by the Free Software Foundation.
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*
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* This program is distributed in the hope it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef _GP10B_PLATFORM_H_
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#define _GP10B_PLATFORM_H_
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struct device;
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struct gk20a_platform_clk {
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char *name;
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unsigned long default_rate;
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};
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/* Select every GP10B_FREQ_SELECT_STEP'th frequency from h/w table */
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#define GP10B_FREQ_SELECT_STEP 8
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/* Max number of freq supported in h/w */
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#define GP10B_MAX_SUPPORTED_FREQS 120
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/* Allow limited set of frequencies to be available */
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#define GP10B_NUM_SUPPORTED_FREQS ((GP10B_MAX_SUPPORTED_FREQS) / (GP10B_FREQ_SELECT_STEP))
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#define TEGRA_GP10B_BW_PER_FREQ 64
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#define TEGRA_DDR4_BW_PER_FREQ 16
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#define EMC_BW_RATIO (TEGRA_GP10B_BW_PER_FREQ / TEGRA_DDR4_BW_PER_FREQ)
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extern unsigned long gp10b_freq_table[GP10B_NUM_SUPPORTED_FREQS];
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void gp10b_tegra_clks_control(struct device *dev, bool enable);
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int gp10b_tegra_get_clocks(struct device *dev);
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int gp10b_tegra_reset_assert(struct device *dev);
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int gp10b_tegra_reset_deassert(struct device *dev);
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void gp10b_tegra_scale_init(struct device *dev);
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long gp10b_round_clk_rate(struct device *dev, unsigned long rate);
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int gp10b_clk_get_freqs(struct device *dev,
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unsigned long **freqs, int *num_freqs);
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void gp10b_tegra_prescale(struct device *dev);
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void gp10b_tegra_postscale(struct device *pdev, unsigned long freq);
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int gp10b_tegra_acquire_platform_clocks(struct device *dev,
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struct gk20a_platform_clk *clk_entries,
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unsigned int num_clk_entries);
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#endif
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