86 lines
2.3 KiB
C
86 lines
2.3 KiB
C
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/*
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* Copyright (c) 2015, The Linux Foundation. All rights reserved.
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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 and
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* only version 2 as 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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*/
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#ifndef __MSM_SECURE_BUFFER_H__
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#define __MSM_SECURE_BUFFER_H__
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#include <linux/scatterlist.h>
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#define VMID_HLOS 0x3
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#define VMID_ADSP 0x6
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#define VMID_CP_TOUCH 0x8
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#define VMID_CP_BITSTREAM 0x9
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#define VMID_CP_PIXEL 0xA
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#define VMID_CP_NON_PIXEL 0xB
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#define VMID_CP_CAMERA 0xD
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#define VMID_HLOS_FREE 0xE
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#define VMID_MSS_MSA 0xF
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#define VMID_MSS_NONMSA 0x10
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#define VMID_CP_SEC_DISPLAY 0x11
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#define VMID_CP_APP 0x12
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#define VMID_INVAL -1
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/*
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* if you add a secure VMID here make sure you update
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* msm_secure_vmid_to_string
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*/
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#define PERM_READ 0x4
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#define PERM_WRITE 0x2
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#define PERM_EXEC 0x1
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#ifdef CONFIG_MSM_SECURE_BUFFER
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int msm_secure_table(struct sg_table *table);
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int msm_unsecure_table(struct sg_table *table);
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int hyp_assign_table(struct sg_table *table,
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u32 *source_vm_list, int source_nelems,
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int *dest_vmids, int *dest_perms,
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int dest_nelems);
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int hyp_assign_phys(phys_addr_t addr, u64 size,
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u32 *source_vmlist, int source_nelems,
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int *dest_vmids, int *dest_perms, int dest_nelems);
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bool msm_secure_v2_is_supported(void);
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const char *msm_secure_vmid_to_string(int secure_vmid);
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#else
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static inline int msm_secure_table(struct sg_table *table)
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{
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return -ENOSYS;
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}
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static inline int msm_unsecure_table(struct sg_table *table)
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{
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return -ENOSYS;
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}
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static inline int hyp_assign_table(struct sg_table *table,
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u32 *source_vm_list, int source_nelems,
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int *dest_vmids, int *dest_perms,
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int dest_nelems)
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{
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return -ENOSYS;
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}
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static inline int hyp_assign_phys(phys_addr_t addr, u64 size,
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u32 *source_vmlist, int source_nelems,
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int *dest_vmids, int *dest_perms, int dest_nelems)
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{
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return -ENOSYS;
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}
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static inline bool msm_secure_v2_is_supported(void)
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{
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return false;
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}
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const char *msm_secure_vmid_to_string(int secure_vmid)
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{
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return "N/A";
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}
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#endif
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#endif
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