| /**************************************************************************** |
| * |
| * 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 |
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| * 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_vxworks.h" |
| #include "gc_hal_kernel_allocator.h" |
| #define _GC_OBJ_ZONE gcvZONE_OS |
| |
| /* |
| * reserved_mem is for contiguous pool, internal pool and external pool, etc. |
| */ |
| |
| /* mdl private. */ |
| struct reserved_mem |
| { |
| unsigned long start; |
| unsigned long size; |
| char name[32]; |
| int release; |
| |
| /* Link together. */ |
| struct list_head link; |
| }; |
| |
| /* allocator info. */ |
| struct reserved_mem_alloc |
| { |
| /* Record allocated reserved memory regions. */ |
| struct list_head region; |
| pthread_mutex_t lock; |
| }; |
| |
| static gceSTATUS |
| reserved_mem_attach( |
| IN gckALLOCATOR Allocator, |
| IN gcsATTACH_DESC_PTR Desc, |
| IN PVX_MDL Mdl |
| ) |
| { |
| struct reserved_mem_alloc *alloc = Allocator->privateData; |
| struct reserved_mem *res; |
| |
| res = (struct reserved_mem *)malloc(sizeof(struct reserved_mem)); |
| |
| if (!res) |
| return gcvSTATUS_OUT_OF_MEMORY; |
| |
| res->start = Desc->reservedMem.start; |
| res->size = Desc->reservedMem.size; |
| strncpy(res->name, Desc->reservedMem.name, sizeof(res->name)-1); |
| |
| if (!Desc->reservedMem.requested) |
| { |
| /*TODO: Request memory region. */ |
| res->release = 1; |
| } |
| |
| pthread_mutex_lock(&alloc->lock); |
| list_add(&res->link, &alloc->region); |
| pthread_mutex_unlock(&alloc->lock); |
| |
| Mdl->priv = res; |
| |
| return gcvSTATUS_OK; |
| } |
| |
| static void |
| reserved_mem_detach( |
| IN gckALLOCATOR Allocator, |
| IN OUT PVX_MDL Mdl |
| ) |
| { |
| struct reserved_mem_alloc *alloc = Allocator->privateData; |
| struct reserved_mem *res = Mdl->priv; |
| |
| /* unlink from region list. */ |
| pthread_mutex_lock(&alloc->lock); |
| list_del_init(&res->link); |
| pthread_mutex_unlock(&alloc->lock); |
| |
| if (res->release) |
| { |
| /*TODO: Release memory region. */ |
| } |
| |
| free(res); |
| } |
| |
| static void |
| reserved_mem_unmap_user( |
| IN gckALLOCATOR Allocator, |
| IN PVX_MDL Mdl, |
| IN PVX_MDL_MAP MdlMap, |
| IN gctUINT32 Size |
| ) |
| { |
| return; |
| } |
| |
| static gceSTATUS |
| reserved_mem_map_user( |
| gckALLOCATOR Allocator, |
| PVX_MDL Mdl, |
| PVX_MDL_MAP MdlMap, |
| gctBOOL Cacheable |
| ) |
| { |
| return gcvSTATUS_OK; |
| } |
| |
| static gceSTATUS |
| reserved_mem_map_kernel( |
| IN gckALLOCATOR Allocator, |
| IN PVX_MDL Mdl, |
| IN gctSIZE_T Offset, |
| IN gctSIZE_T Bytes, |
| OUT gctPOINTER *Logical |
| ) |
| { |
| return gcvSTATUS_OK; |
| } |
| |
| static gceSTATUS |
| reserved_mem_unmap_kernel( |
| IN gckALLOCATOR Allocator, |
| IN PVX_MDL Mdl, |
| IN gctPOINTER Logical |
| ) |
| { |
| return gcvSTATUS_OK; |
| } |
| |
| static gceSTATUS |
| reserved_mem_cache_op( |
| IN gckALLOCATOR Allocator, |
| IN PVX_MDL Mdl, |
| IN gctSIZE_T Offset, |
| IN gctPOINTER Logical, |
| IN gctUINT32 Bytes, |
| IN gceCACHEOPERATION Operation |
| ) |
| { |
| return gcvSTATUS_OK; |
| } |
| |
| static gceSTATUS |
| reserved_mem_get_physical( |
| IN gckALLOCATOR Allocator, |
| IN PVX_MDL Mdl, |
| IN gctUINT32 Offset, |
| OUT gctPHYS_ADDR_T * Physical |
| ) |
| { |
| struct reserved_mem *res = Mdl->priv; |
| *Physical = res->start + Offset; |
| |
| return gcvSTATUS_OK; |
| } |
| |
| static void |
| reserved_mem_dtor( |
| gcsALLOCATOR *Allocator |
| ) |
| { |
| if (Allocator->privateData) |
| { |
| free(Allocator->privateData); |
| } |
| |
| free(Allocator); |
| } |
| |
| /* GFP allocator operations. */ |
| static gcsALLOCATOR_OPERATIONS reserved_mem_ops = { |
| .Alloc = NULL, |
| .Attach = reserved_mem_attach, |
| .Free = reserved_mem_detach, |
| .MapUser = reserved_mem_map_user, |
| .UnmapUser = reserved_mem_unmap_user, |
| .MapKernel = reserved_mem_map_kernel, |
| .UnmapKernel = reserved_mem_unmap_kernel, |
| .Cache = reserved_mem_cache_op, |
| .Physical = reserved_mem_get_physical, |
| }; |
| |
| /* GFP allocator entry. */ |
| gceSTATUS |
| _ReservedMemoryAllocatorInit( |
| IN gckOS Os, |
| OUT gckALLOCATOR * Allocator |
| ) |
| { |
| gceSTATUS status; |
| gckALLOCATOR allocator = gcvNULL; |
| struct reserved_mem_alloc *alloc = NULL; |
| |
| gcmkONERROR( |
| gckALLOCATOR_Construct(Os, &reserved_mem_ops, &allocator)); |
| |
| alloc = (struct reserved_mem_alloc *) malloc(sizeof(*alloc)); |
| |
| if (!alloc) |
| { |
| gcmkONERROR(gcvSTATUS_OUT_OF_MEMORY); |
| } |
| |
| INIT_LIST_HEAD(&alloc->region); |
| pthread_mutex_init(&alloc->lock, 0); |
| |
| /* Register private data. */ |
| allocator->privateData = alloc; |
| allocator->destructor = reserved_mem_dtor; |
| |
| allocator->capability = gcvALLOC_FLAG_LINUX_RESERVED_MEM; |
| |
| *Allocator = allocator; |
| |
| return gcvSTATUS_OK; |
| |
| OnError: |
| if (allocator) |
| { |
| free(allocator); |
| } |
| return status; |
| } |
| |