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Stream and allowlist buffers are allocated by the user as dma buffers and mapped in virtual address space by the driver. The DMA and mapping functions are linux specific. Hence create memory management and allowlist linux structures. Add these linux memory structure pointers in the tegra_hwpm parent structure. Jira THWPM-60 Change-Id: I2526f2bab835df4c5a922b0b375c22a6247aad30 Signed-off-by: Vedashree Vidwans <vvidwans@nvidia.com> Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvidia/+/2729664 Reviewed-by: Seema Khowala <seemaj@nvidia.com> GVS: Gerrit_Virtual_Submit <buildbot_gerritrpt@nvidia.com>
61 lines
1.9 KiB
C
61 lines
1.9 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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/* 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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struct dma_buf *mem_bytes_dma_buf;
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struct dma_buf_attachment *mem_bytes_attach;
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u64 mem_bytes_buf_va;
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void *mem_bytes_kernel;
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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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