[pcsx_rearmed.git] / deps / lightrec / lightrec-private.h

/*
 * Copyright (C) 2016 Paul Cercueil <paul@crapouillou.net>
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * This library 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
 * Lesser General Public License for more details.
 */

#ifndef __LIGHTREC_PRIVATE_H__
#define __LIGHTREC_PRIVATE_H__

#include "config.h"
#include "disassembler.h"
#include "lightrec.h"

#if ENABLE_THREADED_COMPILER
#include <stdatomic.h>
#endif

#define ARRAY_SIZE(x) (sizeof(x) ? sizeof(x) / sizeof((x)[0]) : 0)
#define BIT(x) (1 << (x))

#ifdef __GNUC__
#	define likely(x)       __builtin_expect(!!(x),1)
#	define unlikely(x)     __builtin_expect(!!(x),0)
#else
#	define likely(x)       (x)
#	define unlikely(x)     (x)
#endif

#if __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
#	define LE32TOH(x)	__builtin_bswap32(x)
#	define HTOLE32(x)	__builtin_bswap32(x)
#	define LE16TOH(x)	__builtin_bswap16(x)
#	define HTOLE16(x)	__builtin_bswap16(x)
#else
#	define LE32TOH(x)	(x)
#	define HTOLE32(x)	(x)
#	define LE16TOH(x)	(x)
#	define HTOLE16(x)	(x)
#endif

/* Flags for (struct block *)->flags */
#define BLOCK_NEVER_COMPILE	BIT(0)
#define BLOCK_SHOULD_RECOMPILE	BIT(1)
#define BLOCK_FULLY_TAGGED	BIT(2)

#define RAM_SIZE	0x200000
#define BIOS_SIZE	0x80000

#define CODE_LUT_SIZE	((RAM_SIZE + BIOS_SIZE) >> 2)

/* Definition of jit_state_t (avoids inclusion of <lightning.h>) */
struct jit_node;
struct jit_state;
typedef struct jit_state jit_state_t;

struct blockcache;
struct recompiler;
struct regcache;
struct opcode;
struct tinymm;

struct block {
	jit_state_t *_jit;
	struct lightrec_state *state;
	struct opcode *opcode_list;
	void (*function)(void);
	u32 pc;
	u32 hash;
#if ENABLE_THREADED_COMPILER
	atomic_flag op_list_freed;
#endif
	unsigned int code_size;
	u16 flags;
	u16 nb_ops;
	const struct lightrec_mem_map *map;
	struct block *next;
};

struct lightrec_branch {
	struct jit_node *branch;
	u32 target;
};

struct lightrec_branch_target {
	struct jit_node *label;
	u32 offset;
};

struct lightrec_state {
	u32 native_reg_cache[34];
	u32 next_pc;
	u32 current_cycle;
	u32 target_cycle;
	u32 exit_flags;
	struct block *dispatcher, *rw_wrapper, *rw_generic_wrapper,
		     *mfc_wrapper, *mtc_wrapper, *rfe_wrapper, *cp_wrapper,
		     *syscall_wrapper, *break_wrapper;
	void *rw_func, *rw_generic_func, *mfc_func, *mtc_func, *rfe_func,
	     *cp_func, *syscall_func, *break_func;
	struct jit_node *branches[512];
	struct lightrec_branch local_branches[512];
	struct lightrec_branch_target targets[512];
	unsigned int nb_branches;
	unsigned int nb_local_branches;
	unsigned int nb_targets;
	struct tinymm *tinymm;
	struct blockcache *block_cache;
	struct regcache *reg_cache;
	struct recompiler *rec;
	void (*eob_wrapper_func)(void);
	void (*get_next_block)(void);
	struct lightrec_ops ops;
	unsigned int cycles;
	unsigned int nb_maps;
	const struct lightrec_mem_map *maps;
	uintptr_t offset_ram, offset_bios, offset_scratch;
	_Bool mirrors_mapped;
	_Bool invalidate_from_dma_only;
	void *code_lut[];
};

u32 lightrec_rw(struct lightrec_state *state, union code op,
		u32 addr, u32 data, u16 *flags);

void lightrec_free_block(struct block *block);

void remove_from_code_lut(struct blockcache *cache, struct block *block);

static inline u32 kunseg(u32 addr)
{
	if (unlikely(addr >= 0xa0000000))
		return addr - 0xa0000000;
	else
		return addr &~ 0x80000000;
}

static inline u32 lut_offset(u32 pc)
{
	if (pc & BIT(28))
		return ((pc & (BIOS_SIZE - 1)) + RAM_SIZE) >> 2; // BIOS
	else
		return (pc & (RAM_SIZE - 1)) >> 2; // RAM
}

void lightrec_mtc(struct lightrec_state *state, union code op, u32 data);
u32 lightrec_mfc(struct lightrec_state *state, union code op);

union code lightrec_read_opcode(struct lightrec_state *state, u32 pc);

struct block * lightrec_get_block(struct lightrec_state *state, u32 pc);
int lightrec_compile_block(struct block *block);

#endif /* __LIGHTREC_PRIVATE_H__ */
Commit	Line	Data
d16005f8 PC	1	/*
	2	* Copyright (C) 2016 Paul Cercueil <paul@crapouillou.net>
	3	*
	4	* This library is free software; you can redistribute it and/or
	5	* modify it under the terms of the GNU Lesser General Public
	6	* License as published by the Free Software Foundation; either
	7	* version 2.1 of the License, or (at your option) any later version.
	8	*
	9	* This library is distributed in the hope that it will be useful,
	10	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	11	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
	12	* Lesser General Public License for more details.
	13	*/
	14
	15	#ifndef __LIGHTREC_PRIVATE_H__
	16	#define __LIGHTREC_PRIVATE_H__
	17
	18	#include "config.h"
	19	#include "disassembler.h"
	20	#include "lightrec.h"
	21
	22	#if ENABLE_THREADED_COMPILER
	23	#include <stdatomic.h>
	24	#endif
	25
	26	#define ARRAY_SIZE(x) (sizeof(x) ? sizeof(x) / sizeof((x)[0]) : 0)
	27	#define BIT(x) (1 << (x))
	28
	29	#ifdef __GNUC__
	30	# define likely(x) __builtin_expect(!!(x),1)
	31	# define unlikely(x) __builtin_expect(!!(x),0)
	32	#else
	33	# define likely(x) (x)
	34	# define unlikely(x) (x)
	35	#endif
	36
	37	#if __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
	38	# define LE32TOH(x) __builtin_bswap32(x)
	39	# define HTOLE32(x) __builtin_bswap32(x)
	40	# define LE16TOH(x) __builtin_bswap16(x)
	41	# define HTOLE16(x) __builtin_bswap16(x)
	42	#else
	43	# define LE32TOH(x) (x)
	44	# define HTOLE32(x) (x)
	45	# define LE16TOH(x) (x)
	46	# define HTOLE16(x) (x)
	47	#endif
	48
	49	/* Flags for (struct block )->flags /
	50	#define BLOCK_NEVER_COMPILE BIT(0)
	51	#define BLOCK_SHOULD_RECOMPILE BIT(1)
	52	#define BLOCK_FULLY_TAGGED BIT(2)
	53
	54	#define RAM_SIZE 0x200000
	55	#define BIOS_SIZE 0x80000
	56
	57	#define CODE_LUT_SIZE ((RAM_SIZE + BIOS_SIZE) >> 2)
	58
	59	/* Definition of jit_state_t (avoids inclusion of <lightning.h>) */
	60	struct jit_node;
	61	struct jit_state;
	62	typedef struct jit_state jit_state_t;
	63
	64	struct blockcache;
65	struct recompiler;
66	struct regcache;
67	struct opcode;
68	struct tinymm;
69
70	struct block {
71	jit_state_t *_jit;
72	struct lightrec_state *state;
73	struct opcode *opcode_list;
74	void (*function)(void);
75	u32 pc;
76	u32 hash;
77	#if ENABLE_THREADED_COMPILER
78	atomic_flag op_list_freed;
79	#endif
80	unsigned int code_size;
81	u16 flags;
82	u16 nb_ops;
83	const struct lightrec_mem_map *map;
84	struct block *next;
85	};
86
87	struct lightrec_branch {
88	struct jit_node *branch;
89	u32 target;
90	};
91
92	struct lightrec_branch_target {
93	struct jit_node *label;
94	u32 offset;
95	};
96
97	struct lightrec_state {
98	u32 native_reg_cache[34];
99	u32 next_pc;
100	u32 current_cycle;
101	u32 target_cycle;
102	u32 exit_flags;
103	struct block dispatcher, rw_wrapper, *rw_generic_wrapper,
104	mfc_wrapper, mtc_wrapper, rfe_wrapper, cp_wrapper,
105	syscall_wrapper, break_wrapper;
106	void rw_func, rw_generic_func, mfc_func, mtc_func, *rfe_func,
107	cp_func, syscall_func, *break_func;
108	struct jit_node *branches[512];
109	struct lightrec_branch local_branches[512];
110	struct lightrec_branch_target targets[512];
111	unsigned int nb_branches;
112	unsigned int nb_local_branches;
113	unsigned int nb_targets;
114	struct tinymm *tinymm;
115	struct blockcache *block_cache;
116	struct regcache *reg_cache;
117	struct recompiler *rec;
118	void (*eob_wrapper_func)(void);
119	void (*get_next_block)(void);
120	struct lightrec_ops ops;
121	unsigned int cycles;
122	unsigned int nb_maps;
123	const struct lightrec_mem_map *maps;
124	uintptr_t offset_ram, offset_bios, offset_scratch;
125	_Bool mirrors_mapped;
126	_Bool invalidate_from_dma_only;
127	void *code_lut[];
128	};
129
130	u32 lightrec_rw(struct lightrec_state *state, union code op,
131	u32 addr, u32 data, u16 *flags);
132
133	void lightrec_free_block(struct block *block);
134
135	void remove_from_code_lut(struct blockcache cache, struct block block);
136
137	static inline u32 kunseg(u32 addr)
138	{
139	if (unlikely(addr >= 0xa0000000))
140	return addr - 0xa0000000;
141	else
142	return addr &~ 0x80000000;
143	}
144
145	static inline u32 lut_offset(u32 pc)
146	{
147	if (pc & BIT(28))
148	return ((pc & (BIOS_SIZE - 1)) + RAM_SIZE) >> 2; // BIOS
149	else
150	return (pc & (RAM_SIZE - 1)) >> 2; // RAM
151	}
152
153	void lightrec_mtc(struct lightrec_state *state, union code op, u32 data);
154	u32 lightrec_mfc(struct lightrec_state *state, union code op);
155
156	union code lightrec_read_opcode(struct lightrec_state *state, u32 pc);
157
158	struct block * lightrec_get_block(struct lightrec_state *state, u32 pc);
159	int lightrec_compile_block(struct block *block);
160
161	#endif /* __LIGHTREC_PRIVATE_H__ */