drivers/misc/mediatek/gpu/mt8127/mali/mali/linux/mali_memory_types.h

   1 /*
   2  * This confidential and proprietary software may be used only as
   3  * authorised by a licensing agreement from ARM Limited
   4  * (C) COPYRIGHT 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 #ifndef __MALI_MEMORY_TYPES_H__
  12 #define __MALI_MEMORY_TYPES_H__
  13
  14 #if defined(CONFIG_MALI400_UMP)
  15 #include "ump_kernel_interface.h"
  16 #endif
  17
  18 typedef u32 mali_address_t;
  19
  20 typedef enum mali_mem_type {
  21         MALI_MEM_OS,
  22         MALI_MEM_EXTERNAL,
  23         MALI_MEM_DMA_BUF,
  24         MALI_MEM_UMP,
  25         MALI_MEM_BLOCK,
  26 } mali_mem_type;
  27
  28 typedef struct mali_mem_os_mem {
  29         struct list_head pages;
  30         u32 count;
  31 } mali_mem_os_mem;
  32
  33 typedef struct mali_mem_dma_buf {
  34 #if defined(CONFIG_DMA_SHARED_BUFFER)
  35         struct mali_dma_buf_attachment *attachment;
  36 #endif
  37 } mali_mem_dma_buf;
  38
  39 typedef struct mali_mem_external {
  40         dma_addr_t phys;
  41         u32 size;
  42 } mali_mem_external;
  43
  44 typedef struct mali_mem_ump {
  45 #if defined(CONFIG_MALI400_UMP)
  46         ump_dd_handle handle;
  47 #endif
  48 } mali_mem_ump;
  49
  50 typedef struct block_allocator_allocation {
  51         /* The list will be released in reverse order */
  52         struct block_info *last_allocated;
  53         u32 mapping_length;
  54         struct block_allocator *info;
  55 } block_allocator_allocation;
  56
  57 typedef struct mali_mem_block_mem {
  58         block_allocator_allocation mem;
  59 } mali_mem_block_mem;
  60
  61 typedef struct mali_mem_virt_mali_mapping {
  62         mali_address_t addr; /* Virtual Mali address */
  63         u32 properties;      /* MMU Permissions + cache, must match MMU HW */
  64 } mali_mem_virt_mali_mapping;
  65
  66 typedef struct mali_mem_virt_cpu_mapping {
  67         void __user *addr;
  68         u32 ref;
  69 } mali_mem_virt_cpu_mapping;
  70
  71 #define MALI_MEM_ALLOCATION_VALID_MAGIC 0xdeda110c
  72 #define MALI_MEM_ALLOCATION_FREED_MAGIC 0x10101010
  73
  74 typedef struct mali_mem_allocation {
  75         MALI_DEBUG_CODE(u32 magic);
  76         mali_mem_type type;                /**< Type of memory */
  77         int id;                            /**< ID in the descriptor map for this allocation */
  78
  79         u32 size;                          /**< Size of the allocation */
  80         u32 flags;                         /**< Flags for this allocation */
  81
  82         struct mali_session_data *session; /**< Pointer to session that owns the allocation */
  83
  84         /* Union selected by type. */
  85         union {
  86                 mali_mem_os_mem os_mem;       /**< MALI_MEM_OS */
  87                 mali_mem_external ext_mem;    /**< MALI_MEM_EXTERNAL */
  88                 mali_mem_dma_buf dma_buf;     /**< MALI_MEM_DMA_BUF */
  89                 mali_mem_ump ump_mem;         /**< MALI_MEM_UMP */
  90                 mali_mem_block_mem block_mem; /**< MALI_MEM_BLOCK */
  91         };
  92
  93         mali_mem_virt_cpu_mapping cpu_mapping; /**< CPU mapping */
  94         mali_mem_virt_mali_mapping mali_mapping; /**< Mali mapping */
  95 } mali_mem_allocation;
  96
  97 #define MALI_MEM_FLAG_MALI_GUARD_PAGE (1 << 0)
  98 #define MALI_MEM_FLAG_DONT_CPU_MAP    (1 << 1)
  99
 100 #endif /* __MALI_MEMORY_TYPES__ */