drivers/misc/mediatek/gpu/mt8127/mali/mali/common/mali_hw_core.c

   1 /*
   2  * This confidential and proprietary software may be used only as
   3  * authorised by a licensing agreement from ARM Limited
   4  * (C) COPYRIGHT 2011-2013 ARM Limited
   5  * ALL RIGHTS RESERVED
   6  * The entire notice above must be reproduced on all authorised
   7  * copies and copies may only be made to the extent permitted
   8  * by a licensing agreement from ARM Limited.
   9  */
  10
  11 #include "mali_hw_core.h"
  12 #include "mali_osk.h"
  13 #include "mali_kernel_common.h"
  14 #include "mali_osk_mali.h"
  15
  16 _mali_osk_errcode_t mali_hw_core_create(struct mali_hw_core *core, const _mali_osk_resource_t *resource, u32 reg_size)
  17 {
  18         core->phys_addr = resource->base;
  19         core->phys_offset = resource->base - _mali_osk_resource_base_address();
  20         core->description = resource->description;
  21         core->size = reg_size;
  22
  23         MALI_DEBUG_ASSERT(core->phys_offset < core->phys_addr);
  24
  25         if (_MALI_OSK_ERR_OK == _mali_osk_mem_reqregion(core->phys_addr, core->size, core->description)) {
  26                 core->mapped_registers = _mali_osk_mem_mapioregion(core->phys_addr, core->size, core->description);
  27                 if (NULL != core->mapped_registers) {
  28                         return _MALI_OSK_ERR_OK;
  29                 } else {
  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         } else {
  34                 MALI_PRINT_ERROR(("Failed to request memory region for core %s at phys_addr 0x%08X\n", core->description, core->phys_addr));
  35         }
  36
  37         return _MALI_OSK_ERR_FAULT;
  38 }
  39
  40 void mali_hw_core_delete(struct mali_hw_core *core)
  41 {
  42         _mali_osk_mem_unmapioregion(core->phys_addr, core->size, core->mapped_registers);
  43         core->mapped_registers = NULL;
  44         _mali_osk_mem_unreqregion(core->phys_addr, core->size);
  45 }