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

   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 #ifndef __MALI_HW_CORE_H__
  12 #define __MALI_HW_CORE_H__
  13
  14 #include "mali_osk.h"
  15 #include "mali_kernel_common.h"
  16
  17 /**
  18  * The common parts for all Mali HW cores (GP, PP, MMU, L2 and PMU)
  19  * This struct is embedded inside all core specific structs.
  20  */
  21 struct mali_hw_core
  22 {
  23         u32 phys_addr;                    /**< Physical address of the registers */
  24         u32 size;                         /**< Size of registers */
  25         mali_io_address mapped_registers; /**< Virtual mapping of the registers */
  26         const char* description;          /**< Name of unit (as specified in device configuration) */
  27 };
  28
  29 #define MALI_REG_POLL_COUNT_FAST 1000
  30 #define MALI_REG_POLL_COUNT_SLOW 1000000
  31
  32 _mali_osk_errcode_t mali_hw_core_create(struct mali_hw_core *core, const _mali_osk_resource_t *resource, u32 reg_size);
  33 void mali_hw_core_delete(struct mali_hw_core *core);
  34
  35 MALI_STATIC_INLINE u32 mali_hw_core_register_read(struct mali_hw_core *core, u32 relative_address)
  36 {
  37         u32 read_val;
  38         read_val = _mali_osk_mem_ioread32(core->mapped_registers, relative_address);
  39         MALI_DEBUG_PRINT(6, ("register_read for core %s, relative addr=0x%04X, val=0x%08X\n",
  40                              core->description, relative_address, read_val));
  41         return read_val;
  42 }
  43
  44 MALI_STATIC_INLINE void mali_hw_core_register_write_relaxed(struct mali_hw_core *core, u32 relative_address, u32 new_val)
  45 {
  46         MALI_DEBUG_PRINT(6, ("register_write_relaxed for core %s, relative addr=0x%04X, val=0x%08X\n",
  47                               core->description, relative_address, new_val));
  48         _mali_osk_mem_iowrite32_relaxed(core->mapped_registers, relative_address, new_val);
  49 }
  50
  51 /* Conditionally write a register.
  52  * The register will only be written if the new value is different from the old_value.
  53  * If the new value is different, the old value will also be updated */
  54 MALI_STATIC_INLINE void mali_hw_core_register_write_relaxed_conditional(struct mali_hw_core *core, u32 relative_address, u32 new_val, const u32 old_val)
  55 {
  56         MALI_DEBUG_PRINT(6, ("register_write_relaxed for core %s, relative addr=0x%04X, val=0x%08X\n",
  57                               core->description, relative_address, new_val));
  58         if(old_val != new_val)
  59         {
  60                 _mali_osk_mem_iowrite32_relaxed(core->mapped_registers, relative_address, new_val);
  61         }
  62 }
  63
  64
  65 MALI_STATIC_INLINE void mali_hw_core_register_write(struct mali_hw_core *core, u32 relative_address, u32 new_val)
  66 {
  67         MALI_DEBUG_PRINT(6, ("register_write for core %s, relative addr=0x%04X, val=0x%08X\n",
  68                               core->description, relative_address, new_val));
  69         _mali_osk_mem_iowrite32(core->mapped_registers, relative_address, new_val);
  70 }
  71
  72 MALI_STATIC_INLINE void mali_hw_core_register_write_array_relaxed(struct mali_hw_core *core, u32 relative_address, u32 *write_array, u32 nr_of_regs)
  73 {
  74         u32 i;
  75         MALI_DEBUG_PRINT(6, ("register_write_array: for core %s, relative addr=0x%04X, nr of regs=%u\n",
  76                              core->description,relative_address, nr_of_regs));
  77
  78         /* Do not use burst writes against the registers */
  79         for (i = 0; i< nr_of_regs; i++)
  80         {
  81                 mali_hw_core_register_write_relaxed(core, relative_address + i*4, write_array[i]);
  82         }
  83 }
  84
  85 /* Conditionally write a set of registers.
  86  * The register will only be written if the new value is different from the old_value.
  87  * If the new value is different, the old value will also be updated */
  88 MALI_STATIC_INLINE void mali_hw_core_register_write_array_relaxed_conditional(struct mali_hw_core *core, u32 relative_address, u32 *write_array, u32 nr_of_regs, const u32* old_array)
  89 {
  90         u32 i;
  91         MALI_DEBUG_PRINT(6, ("register_write_array: for core %s, relative addr=0x%04X, nr of regs=%u\n",
  92                              core->description,relative_address, nr_of_regs));
  93
  94         /* Do not use burst writes against the registers */
  95         for (i = 0; i< nr_of_regs; i++)
  96         {
  97                 if(old_array[i] != write_array[i])
  98                 {
  99                         mali_hw_core_register_write_relaxed(core, relative_address + i*4, write_array[i]);
 100                 }
 101         }
 102 }
 103
 104 #endif /* __MALI_HW_CORE_H__ */