drivers/gpu/arm/mali400/mali/common/mali_hw_core.c

   1 /*
   2  * Copyright (C) 2011-2012 ARM Limited. All rights reserved.
   3  *
   4  * This program is free software and is provided to you under the terms of the GNU General Public License version 2
   5  * as published by the Free Software Foundation, and any use by you of this program is subject to the terms of such GNU licence.
   6  *
   7  * A copy of the licence is included with the program, and can also be obtained from Free Software
   8  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
   9  */
  10
  11 #include "mali_hw_core.h"
  12 #include "mali_osk.h"
  13 #include "mali_kernel_common.h"
  14
  15 _mali_osk_errcode_t mali_hw_core_create(struct mali_hw_core *core, const _mali_osk_resource_t *resource, u32 reg_size)
  16 {
  17         core->phys_addr = resource->base;
  18         core->description = resource->description;
  19         core->size = reg_size;
  20
  21         if (_MALI_OSK_ERR_OK == _mali_osk_mem_reqregion(core->phys_addr, core->size, core->description))
  22         {
  23                 core->mapped_registers = _mali_osk_mem_mapioregion(core->phys_addr, core->size, core->description);
  24                 if (NULL != core->mapped_registers)
  25                 {
  26                         return _MALI_OSK_ERR_OK;
  27                 }
  28                 else
  29                 {
  30                         MALI_PRINT_ERROR(("Failed to map memory region for core %s at phys_addr 0x%08X\n", core->description, core->phys_addr));
  31                 }
  32                 _mali_osk_mem_unreqregion(core->phys_addr, core->size);
  33         }
  34         else
  35         {
  36                 MALI_PRINT_ERROR(("Failed to request memory region for core %s at phys_addr 0x%08X\n", core->description, core->phys_addr));
  37         }
  38
  39         return _MALI_OSK_ERR_FAULT;
  40 }
  41
  42 void mali_hw_core_delete(struct mali_hw_core *core)
  43 {
  44         _mali_osk_mem_unmapioregion(core->phys_addr, core->size, core->mapped_registers);
  45         core->mapped_registers = NULL;
  46         _mali_osk_mem_unreqregion(core->phys_addr, core->size);
  47 }