mirror of
git://nv-tegra.nvidia.com/linux-hwpm.git
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f010cf5956
Kernel version beyond 5.10 introduces dma_buf_map structure (called iosys_map in later versions). Kernel virtual address corresponding to a dma_buf is stored in the dma_buf_map structure. - This patch updates memory management function to use correct mem bytes buffer kernel virtual address stored in the corresponding dma_buf_map structure. - Use dma_buf_map structure pointer to unmap kernel virtual address. - During release, poll mem bytes buffer with finite timeout value. - Add description for use of dma_set_mask_and_coherent. Bug 3893741 Change-Id: I42ace2fe70b36d7d5d1a4c5fee21786826f24a07 Signed-off-by: Vedashree Vidwans <vvidwans@nvidia.com> (cherry picked from commit ce852be6b39ef39affccdee41ad436fc70bf86b5) Reviewed-on: https://git-master.nvidia.com/r/c/linux-hwpm/+/2847007 Reviewed-by: Seema Khowala <seemaj@nvidia.com> GVS: Gerrit_Virtual_Submit <buildbot_gerritrpt@nvidia.com>
76 lines
2.3 KiB
C
76 lines
2.3 KiB
C
/*
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* Copyright (c) 2022, NVIDIA CORPORATION & AFFILIATES. 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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#ifndef TEGRA_HWPM_OS_LINUX_MEM_MGMT_UTILS_H
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#define TEGRA_HWPM_OS_LINUX_MEM_MGMT_UTILS_H
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#include <linux/types.h>
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#if defined(CONFIG_TEGRA_HWPM_OOT)
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#include <linux/version.h>
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#if LINUX_VERSION_CODE >= KERNEL_VERSION(5, 18, 0)
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#include <linux/iosys-map.h>
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#else
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#include <linux/dma-buf-map.h>
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#endif
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#endif
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/* This macro is copy of TEGRA_SOC_HWPM_MEM_BYTES_INVALID */
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#define TEGRA_HWPM_MEM_BYTES_INVALID 0xffffffff
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struct tegra_soc_hwpm;
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struct tegra_soc_hwpm_alloc_pma_stream;
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struct tegra_soc_hwpm_update_get_put;
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struct sg_table;
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struct dma_buf;
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struct dma_buf_attachment;
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struct tegra_soc_hwpm_update_get_put;
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struct tegra_hwpm_mem_mgmt {
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struct sg_table *stream_sgt;
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struct sg_table *mem_bytes_sgt;
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struct dma_buf *stream_dma_buf;
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struct dma_buf_attachment *stream_attach;
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u64 stream_buf_size;
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u64 stream_buf_va;
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u64 mem_bytes_buf_va;
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struct dma_buf *mem_bytes_dma_buf;
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struct dma_buf_attachment *mem_bytes_attach;
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void *mem_bytes_kernel;
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#if defined(CONFIG_TEGRA_HWPM_OOT)
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#if LINUX_VERSION_CODE >= KERNEL_VERSION(5, 18, 0)
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struct iosys_map mem_bytes_map;
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#else
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struct dma_buf_map mem_bytes_map;
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#endif
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#endif
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};
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struct tegra_hwpm_allowlist_map {
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u64 full_alist_size;
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u64 num_pages;
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struct page **pages;
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void *full_alist_map;
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};
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int tegra_hwpm_map_stream_buffer(struct tegra_soc_hwpm *hwpm,
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struct tegra_soc_hwpm_alloc_pma_stream *alloc_pma_stream);
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int tegra_hwpm_clear_mem_pipeline(struct tegra_soc_hwpm *hwpm);
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int tegra_hwpm_update_mem_bytes(struct tegra_soc_hwpm *hwpm,
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struct tegra_soc_hwpm_update_get_put *update_get_put);
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int tegra_hwpm_map_update_allowlist(struct tegra_soc_hwpm *hwpm,
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void *ioctl_struct);
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void tegra_hwpm_release_alist_map(struct tegra_soc_hwpm *hwpm);
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void tegra_hwpm_release_mem_mgmt(struct tegra_soc_hwpm *hwpm);
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#endif /* TEGRA_HWPM_OS_LINUX_MEM_MGMT_UTILS_H */
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