diff options
Diffstat (limited to 'drivers/mxc/gpu-viv/hal/kernel/gc_hal_kernel_security.c')
| -rw-r--r-- | drivers/mxc/gpu-viv/hal/kernel/gc_hal_kernel_security.c | 286 |
1 files changed, 286 insertions, 0 deletions
diff --git a/drivers/mxc/gpu-viv/hal/kernel/gc_hal_kernel_security.c b/drivers/mxc/gpu-viv/hal/kernel/gc_hal_kernel_security.c new file mode 100644 index 000000000000..3c7898e0cdb0 --- /dev/null +++ b/drivers/mxc/gpu-viv/hal/kernel/gc_hal_kernel_security.c @@ -0,0 +1,286 @@ +/**************************************************************************** +* +* 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"), +* to deal in the Software without restriction, including without limitation +* the rights to use, copy, modify, merge, publish, distribute, sublicense, +* and/or sell copies of the Software, and to permit persons to whom the +* Software is furnished to do so, subject to the following conditions: +* +* The above copyright notice and this permission notice shall be included in +* all copies or substantial portions of the Software. +* +* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING +* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER +* DEALINGS IN THE SOFTWARE. +* +***************************************************************************** +* +* 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, +* but WITHOUT ANY WARRANTY; without even the implied warranty of +* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +* 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 +* GPL License. If you wish to use only one license not the other, you can +* indicate your decision by deleting one of the above license notices in your +* version of this file. +* +*****************************************************************************/ + + +#include "gc_hal_kernel_precomp.h" + + + + +#define _GC_OBJ_ZONE gcvZONE_KERNEL + +#if gcdSECURITY + +/* +** Open a security service channel. +*/ +gceSTATUS +gckKERNEL_SecurityOpen( + IN gckKERNEL Kernel, + IN gctUINT32 GPU, + OUT gctUINT32 *Channel + ) +{ + gceSTATUS status; + + gcmkONERROR(gckOS_OpenSecurityChannel(Kernel->os, Kernel->core, Channel)); + gcmkONERROR(gckOS_InitSecurityChannel(*Channel)); + + return gcvSTATUS_OK; + +OnError: + return status; +} + +/* +** Close a security service channel +*/ +gceSTATUS +gckKERNEL_SecurityClose( + IN gctUINT32 Channel + ) +{ + return gcvSTATUS_OK; +} + +/* +** Security service interface. +*/ +gceSTATUS +gckKERNEL_SecurityCallService( + IN gctUINT32 Channel, + IN OUT gcsTA_INTERFACE * Interface +) +{ + gceSTATUS status; + gcmkHEADER(); + + gcmkVERIFY_ARGUMENT(Interface != gcvNULL); + + gckOS_CallSecurityService(Channel, Interface); + + status = Interface->result; + + gcmkONERROR(status); + + gcmkFOOTER_NO(); + return gcvSTATUS_OK; + +OnError: + gcmkFOOTER(); + return status; +} + +gceSTATUS +gckKERNEL_SecurityStartCommand( + IN gckKERNEL Kernel + ) +{ + gceSTATUS status; + gcsTA_INTERFACE iface; + + gcmkHEADER(); + + iface.command = KERNEL_START_COMMAND; + iface.u.StartCommand.gpu = Kernel->core; + + gcmkONERROR(gckKERNEL_SecurityCallService(Kernel->securityChannel, &iface)); + + gcmkFOOTER_NO(); + return gcvSTATUS_OK; + +OnError: + gcmkFOOTER(); + return status; +} + +gceSTATUS +gckKERNEL_SecurityAllocateSecurityMemory( + IN gckKERNEL Kernel, + IN gctUINT32 Bytes, + OUT gctUINT32 * Handle + ) +{ + gceSTATUS status; + gcsTA_INTERFACE iface; + + gcmkHEADER(); + + iface.command = KERNEL_ALLOCATE_SECRUE_MEMORY; + iface.u.AllocateSecurityMemory.bytes = Bytes; + + gcmkONERROR(gckKERNEL_SecurityCallService(Kernel->securityChannel, &iface)); + + *Handle = iface.u.AllocateSecurityMemory.memory_handle; + + gcmkFOOTER_NO(); + return gcvSTATUS_OK; + +OnError: + gcmkFOOTER(); + return status; +} + +gceSTATUS +gckKERNEL_SecurityExecute( + IN gckKERNEL Kernel, + IN gctPOINTER Buffer, + IN gctUINT32 Bytes + ) +{ + gceSTATUS status; +#if defined(LINUX) + gctPHYS_ADDR_T physical; + gctUINT32 address; +#endif + gcsTA_INTERFACE iface; + + gcmkHEADER(); + + iface.command = KERNEL_EXECUTE; + iface.u.Execute.command_buffer = (gctUINT32 *)Buffer; + iface.u.Execute.gpu = Kernel->core; + iface.u.Execute.command_buffer_length = Bytes; + +#if defined(LINUX) + gcmkONERROR(gckOS_GetPhysicalAddress(Kernel->os, Buffer, &physical)); + gcmkVERIFY_OK(gckOS_CPUPhysicalToGPUPhysical(Kernel->os, physical, &physical)); + gcmkSAFECASTPHYSADDRT(address, physical); + + iface.u.Execute.command_buffer = (gctUINT32 *)address; +#endif + + gcmkONERROR(gckKERNEL_SecurityCallService(Kernel->securityChannel, &iface)); + + /* Update queue tail pointer. */ + gcmkONERROR(gckHARDWARE_UpdateQueueTail( + Kernel->hardware, 0, 0 + )); + + gcmkFOOTER_NO(); + return gcvSTATUS_OK; + +OnError: + gcmkFOOTER(); + return status; +} + +gceSTATUS +gckKERNEL_SecurityMapMemory( + IN gckKERNEL Kernel, + IN gctUINT32 *PhysicalArray, + IN gctUINT32 PageCount, + OUT gctUINT32 * GPUAddress + ) +{ + gceSTATUS status; + gcsTA_INTERFACE iface; +#if defined(LINUX) + gctPHYS_ADDR_T physical; + gctUINT32 address; +#endif + + gcmkHEADER(); + + iface.command = KERNEL_MAP_MEMORY; + +#if defined(LINUX) + gcmkONERROR(gckOS_GetPhysicalAddress(Kernel->os, PhysicalArray, &physical)); + gcmkVERIFY_OK(gckOS_CPUPhysicalToGPUPhysical(Kernel->os, physical, &physical)); + gcmkSAFECASTPHYSADDRT(address, physical); + iface.u.MapMemory.physicals = (gctUINT32 *)address; +#endif + + iface.u.MapMemory.pageCount = PageCount; + + gcmkONERROR(gckKERNEL_SecurityCallService(Kernel->securityChannel, &iface)); + + *GPUAddress = iface.u.MapMemory.gpuAddress; + + gcmkFOOTER_NO(); + return gcvSTATUS_OK; + +OnError: + gcmkFOOTER(); + return status; +} + +gceSTATUS +gckKERNEL_SecurityUnmapMemory( + IN gckKERNEL Kernel, + IN gctUINT32 GPUAddress, + IN gctUINT32 PageCount + ) +{ + gceSTATUS status; + gcsTA_INTERFACE iface; + + gcmkHEADER(); + + iface.command = KERNEL_UNMAP_MEMORY; + + iface.u.UnmapMemory.gpuAddress = GPUAddress; + iface.u.UnmapMemory.pageCount = PageCount; + + gcmkONERROR(gckKERNEL_SecurityCallService(Kernel->securityChannel, &iface)); + + gcmkFOOTER_NO(); + return gcvSTATUS_OK; + +OnError: + gcmkFOOTER(); + return status; +} + +#endif |