80 lines
2 KiB
C
80 lines
2 KiB
C
|
/* SPDX-License-Identifier: GPL-2.0 */
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Copyright (c) 2019 MediaTek Inc.
|
||
|
|
*/
|
||
|
|
|
||
|
|
#define PR_FMT_HEADER_MUST_BE_INCLUDED_BEFORE_ALL_HDRS
|
||
|
|
#include "private/tmem_pr_fmt.h" PR_FMT_HEADER_MUST_BE_INCLUDED_BEFORE_ALL_HDRS
|
||
|
|
|
||
|
|
#include <linux/errno.h>
|
||
|
|
#include <linux/kernel.h>
|
||
|
|
#include <linux/proc_fs.h>
|
||
|
|
#include <linux/string.h>
|
||
|
|
#include <linux/uaccess.h>
|
||
|
|
#include <linux/unistd.h>
|
||
|
|
#include <linux/mutex.h>
|
||
|
|
#if defined(CONFIG_MTK_SSMR) || (defined(CONFIG_CMA) && defined(CONFIG_MTK_SVP))
|
||
|
|
#include <memory_ssmr.h>
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#include "private/tmem_utils.h"
|
||
|
|
#include "private/tmem_error.h"
|
||
|
|
#include "private/tmem_device.h"
|
||
|
|
|
||
|
|
static int tmem_ssmr_get(u64 *pa, u32 *size, u32 feat, void *dev_desc)
|
||
|
|
{
|
||
|
|
#if defined(CONFIG_MTK_SSMR) || (defined(CONFIG_CMA) && defined(CONFIG_MTK_SVP))
|
||
|
|
phys_addr_t ssmr_pa;
|
||
|
|
unsigned long ssmr_size;
|
||
|
|
|
||
|
|
UNUSED(dev_desc);
|
||
|
|
|
||
|
|
if (ssmr_offline(&ssmr_pa, &ssmr_size, true, feat)) {
|
||
|
|
pr_err("ssmr offline failed (feat:%d)!\n", feat);
|
||
|
|
return TMEM_SSMR_OFFLINE_FAILED;
|
||
|
|
}
|
||
|
|
|
||
|
|
*pa = (u64)ssmr_pa;
|
||
|
|
*size = (u32)ssmr_size;
|
||
|
|
if (INVALID_ADDR(*pa) || INVALID_SIZE(*size)) {
|
||
|
|
pr_err("ssmr pa is invalid (0x%llx, 0x%x)\n", *pa, *size);
|
||
|
|
return TMEM_INVALID_ADDR_OR_SIZE;
|
||
|
|
}
|
||
|
|
|
||
|
|
pr_debug("ssmr offline passed! feat:%d, pa: 0x%llx, sz: 0x%x\n", feat,
|
||
|
|
*pa, *size);
|
||
|
|
return TMEM_OK;
|
||
|
|
#else
|
||
|
|
pr_err("%s:%d operation is not implemented yet!\n", __func__, __LINE__);
|
||
|
|
return TMEM_OPERATION_NOT_IMPLEMENTED;
|
||
|
|
#endif
|
||
|
|
}
|
||
|
|
|
||
|
|
static int tmem_ssmr_put(u32 feat, void *dev_desc)
|
||
|
|
{
|
||
|
|
UNUSED(dev_desc);
|
||
|
|
#if defined(CONFIG_MTK_SSMR) || (defined(CONFIG_CMA) && defined(CONFIG_MTK_SVP))
|
||
|
|
if (ssmr_online(feat)) {
|
||
|
|
pr_err("ssmr online failed (feat:%d)!\n", feat);
|
||
|
|
return TMEM_SSMR_ONLINE_FAILED;
|
||
|
|
}
|
||
|
|
|
||
|
|
pr_debug("ssmr online passed!\n");
|
||
|
|
return TMEM_OK;
|
||
|
|
#else
|
||
|
|
pr_err("%s:%d operation is not implemented yet!\n", __func__, __LINE__);
|
||
|
|
return TMEM_OPERATION_NOT_IMPLEMENTED;
|
||
|
|
#endif
|
||
|
|
}
|
||
|
|
|
||
|
|
static struct ssmr_operations tmem_ssmr_ops = {
|
||
|
|
.offline = tmem_ssmr_get,
|
||
|
|
.online = tmem_ssmr_put,
|
||
|
|
};
|
||
|
|
|
||
|
|
void get_ssmr_ops(struct ssmr_operations **ops)
|
||
|
|
{
|
||
|
|
*ops = &tmem_ssmr_ops;
|
||
|
|
}
|