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Merge "secure_buffer: Add the secure_buffer.h header file"

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qctecmdr 2022-04-21 16:30:55 -07:00 committed by Gerrit - the friendly Code Review server
commit 1c7cf63f87
1 changed files with 90 additions and 0 deletions
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include/soc/qcom/secure_buffer.h Normal file
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/* SPDX-License-Identifier: GPL-2.0-only */
/*
* Copyright (c) 2015-2021, The Linux Foundation. All rights reserved.
*/
#ifndef __QCOM_SECURE_BUFFER_H__
#define __QCOM_SECURE_BUFFER_H__
#include <linux/scatterlist.h>
/*
* if you add a secure VMID here make sure you update
* msm_secure_vmid_to_string.
* Make sure to keep the VMID_LAST as the last entry in the enum.
* This is needed in ion to create a list and it's sized using VMID_LAST.
*/
enum vmid {
VMID_TZ = 0x1,
VMID_HLOS = 0x3,
VMID_CP_TOUCH = 0x8,
VMID_CP_BITSTREAM = 0x9,
VMID_CP_PIXEL = 0xA,
VMID_CP_NON_PIXEL = 0xB,
VMID_CP_CAMERA = 0xD,
VMID_HLOS_FREE = 0xE,
VMID_MSS_MSA = 0xF,
VMID_MSS_NONMSA = 0x10,
VMID_CP_SEC_DISPLAY = 0x11,
VMID_CP_APP = 0x12,
VMID_LPASS = 0x16,
VMID_WLAN = 0x18,
VMID_WLAN_CE = 0x19,
VMID_CP_SPSS_SP = 0x1A,
VMID_CP_CAMERA_PREVIEW = 0x1D,
VMID_CP_SPSS_SP_SHARED = 0x22,
VMID_CP_SPSS_HLOS_SHARED = 0x24,
VMID_ADSP_HEAP = 0x25,
VMID_CP_CDSP = 0x2A,
VMID_NAV = 0x2B,
VMID_LAST,
VMID_INVAL = -1
};
#define PERM_READ 0x4
#define PERM_WRITE 0x2
#define PERM_EXEC 0x1
#if IS_ENABLED(CONFIG_QCOM_SECURE_BUFFER)
int hyp_assign_table(struct sg_table *table,
u32 *source_vm_list, int source_nelems,
int *dest_vmids, int *dest_perms,
int dest_nelems);
int hyp_assign_phys(phys_addr_t addr, u64 size,
u32 *source_vmlist, int source_nelems,
int *dest_vmids, int *dest_perms, int dest_nelems);
const char *msm_secure_vmid_to_string(int secure_vmid);
u32 msm_secure_get_vmid_perms(u32 vmid);
int page_accessible(unsigned long pfn);
#else
static inline int hyp_assign_table(struct sg_table *table,
u32 *source_vm_list, int source_nelems,
int *dest_vmids, int *dest_perms,
int dest_nelems)
{
return -EINVAL;
}
static inline int hyp_assign_phys(phys_addr_t addr, u64 size,
u32 *source_vmlist, int source_nelems,
int *dest_vmids, int *dest_perms, int dest_nelems)
{
return -EINVAL;
}
static inline const char *msm_secure_vmid_to_string(int secure_vmid)
{
return "N/A";
}
static inline u32 msm_secure_get_vmid_perms(u32 vmid)
{
return 0;
}
static inline int page_accessible(unsigned long pfn)
{
return 1;
}
#endif
#endif