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3a87281353
Handle dependencies between nvmap and cvnas driver: - nvmap_register_cvsram_carveout function is called by cvnas driver (builtin driver for 5.10) and it's definition is present in nvmap driver (builtin driver for 5.10, but we are trying to make LKM). This is resulting into build issues while making nvmap as LKM for 5.10 - One option to resolve this is by making cvnas driver as LKM for 5.10 But nvhost, nvdla, cbb are not LKM for 5.10 and are calling functions defined in cvnas driver e.g. nvcvnas_get_cvsram_base, hence we can't make cvnas as LKM for 5.10 - Second option is to get rid of the call nvmap_register_cvsram_carveout from cvnas driver. This approach is implemented in this patch. - Export cvnas_dev from cvnas driver, do not call the above function from cvnas driver. During nvmap probe, nvmap itself would call the above function, as cvnas_dev is exported , it's being used in nvmap driver to get base, size etc. information, which is needed as argument to above function, which will register the cvnas carveout in case of 5.10 Bug 200722684 Change-Id: I32e5694386de4a7fef65c3f67ffb9b5066f62ab3 Signed-off-by: Ketan Patil <ketanp@nvidia.com> Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvidia/+/2678685
62 lines
1.4 KiB
C
62 lines
1.4 KiB
C
/*
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* include/linux/cvnas.h
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*
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* Tegra cvnas driver
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*
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* Copyright (c) 2018-2022, 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
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that 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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*/
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#ifndef __LINUX_CVNAS_H
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#define __LINUX_CVNAS_H
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#include <linux/types.h>
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#include <linux/device.h>
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struct cvnas_device {
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struct dentry *debugfs_root;
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void __iomem *cvsram_iobase;
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void __iomem *cvreg_iobase;
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void __iomem *hsm_iobase;
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struct device dma_dev;
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int nslices;
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int slice_size;
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phys_addr_t cvsram_base;
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size_t cvsram_size;
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struct clk *clk;
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struct device_attribute *attr;
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struct reset_control *rst;
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struct reset_control *rst_fcm;
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bool virt;
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int (*pmops_busy)(void);
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int (*pmops_idle)(void);
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};
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int nvcvnas_busy(void);
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int nvcvnas_busy_no_rpm(void);
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int nvcvnas_idle(void);
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int nvcvnas_idle_no_rpm(void);
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int is_nvcvnas_probed(void);
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phys_addr_t nvcvnas_get_cvsram_base(void);
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size_t nvcvnas_get_cvsram_size(void);
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int is_nvcvnas_clk_enabled(void);
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#endif
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