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authorGravatar bunnei <bunneidev@gmail.com>2014-09-10 21:27:14 -0400
committerGravatar bunnei <bunneidev@gmail.com>2014-10-25 14:11:39 -0400
commitb5e65245948647b94dfd60c1288f030a76c69a83 (patch)
tree1c8e2afd3ff59f8c5b93970b62f4f1d1bc251852 /src/core/arm/skyeye_common/armmmu.h
parentfd7f92d2422058cc2eddbaa4d6c46aaa099c16a1 (diff)
ARM: Reorganized file structure to move shared SkyEye code to a more common area.
Removed s_ prefix
Diffstat (limited to 'src/core/arm/skyeye_common/armmmu.h')
-rw-r--r--src/core/arm/skyeye_common/armmmu.h254
1 files changed, 254 insertions, 0 deletions
diff --git a/src/core/arm/skyeye_common/armmmu.h b/src/core/arm/skyeye_common/armmmu.h
new file mode 100644
index 00000000..818108c9
--- /dev/null
+++ b/src/core/arm/skyeye_common/armmmu.h
@@ -0,0 +1,254 @@
+/*
+ armmmu.c - Memory Management Unit emulation.
+ ARMulator extensions for the ARM7100 family.
+ Copyright (C) 1999 Ben Williamson
+
+ 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+*/
+
+#ifndef _ARMMMU_H_
+#define _ARMMMU_H_
+
+
+#define WORD_SHT 2
+#define WORD_SIZE (1<<WORD_SHT)
+/* The MMU is accessible with MCR and MRC operations to copro 15: */
+
+#define MMU_COPRO (15)
+
+/* Register numbers in the MMU: */
+
+typedef enum mmu_regnum_t
+{
+ MMU_ID = 0,
+ MMU_CONTROL = 1,
+ MMU_TRANSLATION_TABLE_BASE = 2,
+ MMU_DOMAIN_ACCESS_CONTROL = 3,
+ MMU_FAULT_STATUS = 5,
+ MMU_FAULT_ADDRESS = 6,
+ MMU_CACHE_OPS = 7,
+ MMU_TLB_OPS = 8,
+ MMU_CACHE_LOCKDOWN = 9,
+ MMU_TLB_LOCKDOWN = 10,
+ MMU_PID = 13,
+
+ /*MMU_V4 */
+ MMU_V4_CACHE_OPS = 7,
+ MMU_V4_TLB_OPS = 8,
+
+ /*MMU_V3 */
+ MMU_V3_FLUSH_TLB = 5,
+ MMU_V3_FLUSH_TLB_ENTRY = 6,
+ MMU_V3_FLUSH_CACHE = 7,
+
+ /*MMU Intel SA-1100 */
+ MMU_SA_RB_OPS = 9,
+ MMU_SA_DEBUG = 14,
+ MMU_SA_CP15_R15 = 15,
+ //chy 2003-08-24
+ /*Intel xscale CP15 */
+ XSCALE_CP15_CACHE_TYPE = 0,
+ XSCALE_CP15_AUX_CONTROL = 1,
+ XSCALE_CP15_COPRO_ACCESS = 15,
+
+} mmu_regnum_t;
+
+/* Bits in the control register */
+
+#define CONTROL_MMU (1<<0)
+#define CONTROL_ALIGN_FAULT (1<<1)
+#define CONTROL_CACHE (1<<2)
+#define CONTROL_DATA_CACHE (1<<2)
+#define CONTROL_WRITE_BUFFER (1<<3)
+#define CONTROL_BIG_ENDIAN (1<<7)
+#define CONTROL_SYSTEM (1<<8)
+#define CONTROL_ROM (1<<9)
+#define CONTROL_UNDEFINED (1<<10)
+#define CONTROL_BRANCH_PREDICT (1<<11)
+#define CONTROL_INSTRUCTION_CACHE (1<<12)
+#define CONTROL_VECTOR (1<<13)
+#define CONTROL_RR (1<<14)
+#define CONTROL_L4 (1<<15)
+#define CONTROL_XP (1<<23)
+#define CONTROL_EE (1<<25)
+
+/*Macro defines for MMU state*/
+#define MMU_CTL (state->mmu.control)
+#define MMU_Enabled (state->mmu.control & CONTROL_MMU)
+#define MMU_Disabled (!(MMU_Enabled))
+#define MMU_Aligned (state->mmu.control & CONTROL_ALIGN_FAULT)
+
+#define MMU_ICacheEnabled (MMU_CTL & CONTROL_INSTRUCTION_CACHE)
+#define MMU_ICacheDisabled (!(MMU_ICacheDisabled))
+
+#define MMU_DCacheEnabled (MMU_CTL & CONTROL_DATA_CACHE)
+#define MMU_DCacheDisabled (!(MMU_DCacheEnabled))
+
+#define MMU_CacheEnabled (MMU_CTL & CONTROL_CACHE)
+#define MMU_CacheDisabled (!(MMU_CacheEnabled))
+
+#define MMU_WBEnabled (MMU_CTL & CONTROL_WRITE_BUFFER)
+#define MMU_WBDisabled (!(MMU_WBEnabled))
+
+/*virt_addr exchange according to CP15.R13(process id virtul mapping)*/
+#define PID_VA_MAP_MASK 0xfe000000
+//#define mmu_pid_va_map(va) ({\
+// ARMword ret; \
+// if ((va) & PID_VA_MAP_MASK)\
+// ret = (va); \
+// else \
+// ret = ((va) | (state->mmu.process_id & PID_VA_MAP_MASK));\
+// ret;\
+//})
+#define mmu_pid_va_map(va) ((va) & PID_VA_MAP_MASK) ? (va) : ((va) | (state->mmu.process_id & PID_VA_MAP_MASK))
+
+/* FS[3:0] in the fault status register: */
+
+typedef enum fault_t
+{
+ NO_FAULT = 0x0,
+ ALIGNMENT_FAULT = 0x1,
+
+ SECTION_TRANSLATION_FAULT = 0x5,
+ PAGE_TRANSLATION_FAULT = 0x7,
+ SECTION_DOMAIN_FAULT = 0x9,
+ PAGE_DOMAIN_FAULT = 0xB,
+ SECTION_PERMISSION_FAULT = 0xD,
+ SUBPAGE_PERMISSION_FAULT = 0xF,
+
+ /* defined by skyeye */
+ TLB_READ_MISS = 0x30,
+ TLB_WRITE_MISS = 0x40,
+
+} fault_t;
+
+typedef struct mmu_ops_s
+{
+ /*initilization */
+ int (*init) (ARMul_State * state);
+ /*free on exit */
+ void (*exit) (ARMul_State * state);
+ /*read byte data */
+ fault_t (*read_byte) (ARMul_State * state, ARMword va,
+ ARMword * data);
+ /*write byte data */
+ fault_t (*write_byte) (ARMul_State * state, ARMword va,
+ ARMword data);
+ /*read halfword data */
+ fault_t (*read_halfword) (ARMul_State * state, ARMword va,
+ ARMword * data);
+ /*write halfword data */
+ fault_t (*write_halfword) (ARMul_State * state, ARMword va,
+ ARMword data);
+ /*read word data */
+ fault_t (*read_word) (ARMul_State * state, ARMword va,
+ ARMword * data);
+ /*write word data */
+ fault_t (*write_word) (ARMul_State * state, ARMword va,
+ ARMword data);
+ /*load instr */
+ fault_t (*load_instr) (ARMul_State * state, ARMword va,
+ ARMword * instr);
+ /*mcr */
+ ARMword (*mcr) (ARMul_State * state, ARMword instr, ARMword val);
+ /*mrc */
+ ARMword (*mrc) (ARMul_State * state, ARMword instr, ARMword * val);
+
+ /*ywc 2005-04-16 convert virtual address to physics address */
+ int (*v2p_dbct) (ARMul_State * state, ARMword virt_addr,
+ ARMword * phys_addr);
+} mmu_ops_t;
+
+
+#include "core/arm/interpreter/mmu/tlb.h"
+#include "core/arm/interpreter/mmu/rb.h"
+#include "core/arm/interpreter/mmu/wb.h"
+#include "core/arm/interpreter/mmu/cache.h"
+
+/*special process mmu.h*/
+#include "core/arm/interpreter/mmu/sa_mmu.h"
+//#include "core/arm/interpreter/mmu/arm7100_mmu.h"
+//#include "core/arm/interpreter/mmu/arm920t_mmu.h"
+//#include "core/arm/interpreter/mmu/arm926ejs_mmu.h"
+#include "core/arm/interpreter/mmu/arm1176jzf_s_mmu.h"
+//#include "core/arm/interpreter/mmu/cortex_a9_mmu.h"
+
+typedef struct mmu_state_t
+{
+ ARMword control;
+ ARMword translation_table_base;
+/* dyf 201-08-11 for arm1176 */
+ ARMword auxiliary_control;
+ ARMword coprocessor_access_control;
+ ARMword translation_table_base0;
+ ARMword translation_table_base1;
+ ARMword translation_table_ctrl;
+/* arm1176 end */
+
+ ARMword domain_access_control;
+ ARMword fault_status;
+ ARMword fault_statusi; /* prefetch fault status */
+ ARMword fault_address;
+ ARMword last_domain;
+ ARMword process_id;
+ ARMword context_id;
+ ARMword thread_uro_id;
+ ARMword cache_locked_down;
+ ARMword tlb_locked_down;
+//chy 2003-08-24 for xscale
+ ARMword cache_type; // 0
+ ARMword aux_control; // 1
+ ARMword copro_access; // 15
+
+ mmu_ops_t ops;
+ union
+ {
+ sa_mmu_t sa_mmu;
+ //arm7100_mmu_t arm7100_mmu;
+ //arm920t_mmu_t arm920t_mmu;
+ //arm926ejs_mmu_t arm926ejs_mmu;
+ } u;
+} mmu_state_t;
+
+int mmu_init (ARMul_State * state);
+int mmu_reset (ARMul_State * state);
+void mmu_exit (ARMul_State * state);
+
+fault_t mmu_read_word (ARMul_State * state, ARMword virt_addr,
+ ARMword * data);
+fault_t mmu_write_word (ARMul_State * state, ARMword virt_addr, ARMword data);
+fault_t mmu_load_instr (ARMul_State * state, ARMword virt_addr,
+ ARMword * instr);
+
+ARMword mmu_mrc (ARMul_State * state, ARMword instr, ARMword * value);
+void mmu_mcr (ARMul_State * state, ARMword instr, ARMword value);
+
+/*ywc 20050416*/
+int mmu_v2p_dbct (ARMul_State * state, ARMword virt_addr,
+ ARMword * phys_addr);
+
+fault_t
+mmu_read_byte (ARMul_State * state, ARMword virt_addr, ARMword * data);
+fault_t
+mmu_read_halfword (ARMul_State * state, ARMword virt_addr, ARMword * data);
+fault_t
+mmu_read_word (ARMul_State * state, ARMword virt_addr, ARMword * data);
+fault_t
+mmu_write_byte (ARMul_State * state, ARMword virt_addr, ARMword data);
+fault_t
+mmu_write_halfword (ARMul_State * state, ARMword virt_addr, ARMword data);
+fault_t
+mmu_write_word (ARMul_State * state, ARMword virt_addr, ARMword data);
+#endif /* _ARMMMU_H_ */