threeeye
bc1d038eac
Squashed backup commit (no shallow-clone history issues) of xiaomi-mt6833-dev/kernel_xiaomi_mt6833 (lineage-23.2 branch, upstream commit 9eece662e) plus all fixes applied to get everpal_defconfig building clean against a modern (GCC 15.2.0) toolchain -- see the previous commit message on the lineage-23.2 branch (also in this repo history is not available here since this is a squashed snapshot; full incremental history lives in the local DL380 checkout and the upstream GitHub remote). Upstream: https://github.com/xiaomi-mt6833-dev/kernel_xiaomi_mt6833 (lineage-23.2)
87 lines
2.4 KiB
C
87 lines
2.4 KiB
C
/*
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* Copyright (C) 2018 MediaTek Inc.
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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 version 2 as
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* published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*/
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#define PR_FMT_HEADER_MUST_BE_INCLUDED_BEFORE_ALL_HDRS
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#include "private/tmem_pr_fmt.h" PR_FMT_HEADER_MUST_BE_INCLUDED_BEFORE_ALL_HDRS
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#include <linux/errno.h>
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#include <linux/kernel.h>
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#include <linux/proc_fs.h>
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#include <linux/string.h>
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#include <linux/uaccess.h>
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#include <linux/unistd.h>
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#include <linux/mutex.h>
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#if defined(CONFIG_MTK_SSMR) || (defined(CONFIG_CMA) && defined(CONFIG_MTK_SVP))
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#include <memory_ssmr.h>
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#endif
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#include "private/tmem_utils.h"
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#include "private/tmem_error.h"
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#include "private/tmem_device.h"
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static int tmem_ssmr_get(u64 *pa, u32 *size, u32 feat, void *dev_desc)
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{
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#if defined(CONFIG_MTK_SSMR) || (defined(CONFIG_CMA) && defined(CONFIG_MTK_SVP))
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phys_addr_t ssmr_pa;
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unsigned long ssmr_size;
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UNUSED(dev_desc);
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if (ssmr_offline(&ssmr_pa, &ssmr_size, true, feat)) {
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pr_err("ssmr offline failed (feat:%d)!\n", feat);
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return TMEM_SSMR_OFFLINE_FAILED;
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}
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*pa = (u64)ssmr_pa;
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*size = (u32)ssmr_size;
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if (INVALID_ADDR(*pa) || INVALID_SIZE(*size)) {
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pr_err("ssmr pa is invalid (0x%llx, 0x%x)\n", *pa, *size);
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return TMEM_INVALID_ADDR_OR_SIZE;
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}
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pr_debug("ssmr offline passed! feat:%d, pa: 0x%llx, sz: 0x%x\n", feat,
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*pa, *size);
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return TMEM_OK;
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#else
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pr_err("%s:%d operation is not implemented yet!\n", __func__, __LINE__);
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return TMEM_OPERATION_NOT_IMPLEMENTED;
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#endif
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}
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static int tmem_ssmr_put(u32 feat, void *dev_desc)
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{
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UNUSED(dev_desc);
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#if defined(CONFIG_MTK_SSMR) || (defined(CONFIG_CMA) && defined(CONFIG_MTK_SVP))
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if (ssmr_online(feat)) {
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pr_err("ssmr online failed (feat:%d)!\n", feat);
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return TMEM_SSMR_ONLINE_FAILED;
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}
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pr_debug("ssmr online passed!\n");
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return TMEM_OK;
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#else
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pr_err("%s:%d operation is not implemented yet!\n", __func__, __LINE__);
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return TMEM_OPERATION_NOT_IMPLEMENTED;
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#endif
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}
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static struct ssmr_operations tmem_ssmr_ops = {
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.offline = tmem_ssmr_get,
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.online = tmem_ssmr_put,
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};
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void get_ssmr_ops(struct ssmr_operations **ops)
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{
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*ops = &tmem_ssmr_ops;
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}
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