| /**************************************************************************** |
| * |
| * The MIT License (MIT) |
| * |
| * Copyright (c) 2014 - 2020 Vivante Corporation |
| * |
| * Permission is hereby granted, free of charge, to any person obtaining a |
| * copy of this software and associated documentation files (the "Software"), |
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| * Software is furnished to do so, subject to the following conditions: |
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| * The above copyright notice and this permission notice shall be included in |
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| * |
| ***************************************************************************** |
| * |
| * The GPL License (GPL) |
| * |
| * Copyright (C) 2014 - 2020 Vivante Corporation |
| * |
| * This program is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU General Public License |
| * as published by the Free Software Foundation; either version 2 |
| * of the License, or (at your option) any later version. |
| * |
| * This program is distributed in the hope that it will be useful, |
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| * GNU General Public License for more details. |
| * |
| * You should have received a copy of the GNU General Public License |
| * along with this program; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. |
| * |
| ***************************************************************************** |
| * |
| * Note: This software is released under dual MIT and GPL licenses. A |
| * recipient may use this file under the terms of either the MIT license or |
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| * indicate your decision by deleting one of the above license notices in your |
| * version of this file. |
| * |
| *****************************************************************************/ |
| |
| |
| #ifndef _GC_HAL_SECURITY_INTERFACE_H_ |
| #define _GC_HAL_SECURITY_INTERFACE_H_ |
| struct kernel_start_command { |
| kernel_packet_command_t command; /*! The command (always needs to be the first entry in a structure). */ |
| gctUINT8 gpu; /*! Which GPU. */ |
| gctUINT32 address; |
| gctUINT32 bytes; |
| }; |
| |
| /*! |
| @brief gckCOMMAND Object requests TrustZone to submit command buffer. |
| @discussion |
| Code in trustzone will check content of command buffer after copying command buffer to TrustZone. |
| */ |
| struct kernel_submit { |
| kernel_packet_command_t command; /*! The command (always needs to be the first entry in a structure). */ |
| gctUINT8 gpu; /*! Which GPU. */ |
| gctUINT8 kernel_command; /*! Whether it is a kernel command. */ |
| gctUINT32 command_buffer_handle; /*! Handle to command buffer. */ |
| gctUINT32 offset; /* Offset in command buffer. */ |
| gctUINT32 * command_buffer; /*! Content of command buffer need to be submit. */ |
| gctUINT32 command_buffer_length; /*! Length of command buffer. */ |
| }; |
| |
| |
| /*! |
| @brief gckVIDMEM Object requests TrustZone to allocate security memory. |
| @discussion |
| Allocate a buffer from security GPU memory. |
| */ |
| struct kernel_allocate_security_memory { |
| kernel_packet_command_t command; /*! The command (always needs to be the first entry in a structure). */ |
| gctUINT32 bytes; /*! Requested bytes. */ |
| gctUINT32 memory_handle; /*! Handle of allocated memory. */ |
| }; |
| |
| /*! |
| @brief gckVIDMEM Object requests TrustZone to allocate security memory. |
| @discussion |
| Free a video memory buffer from security GPU memory. |
| */ |
| struct kernel_free_security_memory { |
| kernel_packet_command_t command; /*! The command (always needs to be the first entry in a structure). */ |
| gctUINT32 memory_handle; /*! Handle of allocated memory. */ |
| }; |
| |
| struct kernel_execute { |
| kernel_packet_command_t command; /*! The command (always needs to be the first entry in a structure). */ |
| gctUINT8 gpu; /*! Which GPU. */ |
| gctUINT8 kernel_command; /*! Whether it is a kernel command. */ |
| gctUINT32 * command_buffer; /*! Content of command buffer need to be submit. */ |
| gctUINT32 command_buffer_length; /*! Length of command buffer. */ |
| }; |
| |
| typedef struct kernel_map_scatter_gather { |
| gctUINT32 bytes; |
| gctUINT32 physical; |
| struct kernel_map_scatter_gather *next; |
| } |
| kernel_map_scatter_gather_t; |
| |
| struct kernel_map_memory { |
| kernel_packet_command_t command; |
| kernel_map_scatter_gather_t *scatter; |
| gctUINT32 *physicals; |
| gctPHYS_ADDR_T physical; /*! Contiguous physical address range. */ |
| gctUINT32 pageCount; |
| gctUINT32 gpuAddress; |
| }; |
| |
| struct kernel_unmap_memory { |
| gctUINT32 gpuAddress; |
| gctUINT32 pageCount; |
| }; |
| |
| struct kernel_read_mmu_exception { |
| gctUINT32 mmuStatus; |
| gctUINT32 mmuException; |
| }; |
| |
| struct kernel_handle_mmu_exception { |
| gctUINT32 mmuStatus; |
| gctPHYS_ADDR_T physical; |
| gctUINT32 gpuAddress; |
| }; |
| |
| typedef struct _gcsTA_INTERFACE { |
| kernel_packet_command_t command; |
| union { |
| struct kernel_submit Submit; |
| struct kernel_start_command StartCommand; |
| struct kernel_allocate_security_memory AllocateSecurityMemory; |
| struct kernel_execute Execute; |
| struct kernel_map_memory MapMemory; |
| struct kernel_unmap_memory UnmapMemory; |
| struct kernel_read_mmu_exception ReadMMUException; |
| struct kernel_handle_mmu_exception HandleMMUException; |
| } u; |
| gceSTATUS result; |
| } gcsTA_INTERFACE; |
| |
| #endif |
| |
| |