Loongson-3 CPU family include Loongson-3A R1/R2/R3/R4 and Loongson-3B
R1/R2. Loongson-3A R1 is the oldest and its ISA is the smallest, while
Loongson-3A R4 is the newest and its ISA is almost the superset of all
others. To reduce complexity, we just define two CPU types:
1, "Loongson-3A1000" CPU which is corresponding to Loongson-3A R1. It is
suitable for TCG because Loongson-3A R1 has fewest ASE.
2, "Loongson-3A4000" CPU which is corresponding to Loongson-3A R4. It is
suitable for KVM because Loongson-3A R4 has the VZ ASE.
Loongson-3A has CONFIG6 and CONFIG7, so add their bit-fields as well.
Signed-off-by: Huacai Chen <che...@lemote.com>
Co-developed-by: Jiaxun Yang <jiaxun.y...@flygoat.com>
---
target/mips/cpu.h | 28 +++++++++++++
target/mips/internal.h | 2 +
target/mips/mips-defs.h | 7 +++-
target/mips/translate.c | 2 +
target/mips/translate_init.inc.c | 86 ++++++++++++++++++++++++++++++++++++++++
5 files changed, 123 insertions(+), 2 deletions(-)
diff --git a/target/mips/cpu.h b/target/mips/cpu.h
index 94d01ea..0b3c987 100644
--- a/target/mips/cpu.h
+++ b/target/mips/cpu.h
@@ -940,7 +940,35 @@ struct CPUMIPSState {
#define CP0C5_UFR 2
#define CP0C5_NFExists 0
int32_t CP0_Config6;
+ int32_t CP0_Config6_rw_bitmask;
+#define CP0C6_BPPASS 31
+#define CP0C6_KPOS 24
+#define CP0C6_KE 23
+#define CP0C6_VTLBONLY 22
+#define CP0C6_LASX 21
+#define CP0C6_SSEN 20
+#define CP0C6_DISDRTIME 19
+#define CP0C6_PIXNUEN 18
+#define CP0C6_SCRAND 17
+#define CP0C6_LLEXCEN 16
+#define CP0C6_DISVC 15
+#define CP0C6_VCLRU 14
+#define CP0C6_DCLRU 13
+#define CP0C6_PIXUEN 12
+#define CP0C6_DISBLKLYEN 11
+#define CP0C6_UMEMUALEN 10
+#define CP0C6_SFBEN 8
+#define CP0C6_FLTINT 7
+#define CP0C6_VLTINT 6
+#define CP0C6_DISBTB 5
+#define CP0C6_STPREFCTL 2
+#define CP0C6_INSTPREF 1
+#define CP0C6_DATAPREF 0
int32_t CP0_Config7;
+ int64_t CP0_Config7_rw_bitmask;
+#define CP0C7_NAPCGEN 2
+#define CP0C7_UNIMUEN 1
+#define CP0C7_VFPUCGEN 0
uint64_t CP0_LLAddr;
uint64_t CP0_MAAR[MIPS_MAAR_MAX];
int32_t CP0_MAARI;
diff --git a/target/mips/internal.h b/target/mips/internal.h
index 1bf274b..7853cb1 100644
--- a/target/mips/internal.h
+++ b/target/mips/internal.h
@@ -36,7 +36,9 @@ struct mips_def_t {
int32_t CP0_Config5;
int32_t CP0_Config5_rw_bitmask;
int32_t CP0_Config6;
+ int32_t CP0_Config6_rw_bitmask;
int32_t CP0_Config7;
+ int32_t CP0_Config7_rw_bitmask;
target_ulong CP0_LLAddr_rw_bitmask;
int CP0_LLAddr_shift;
int32_t SYNCI_Step;
diff --git a/target/mips/mips-defs.h b/target/mips/mips-defs.h
index a831bb4..c2c96db 100644
--- a/target/mips/mips-defs.h
+++ b/target/mips/mips-defs.h
@@ -51,8 +51,9 @@
*/
#define INSN_LOONGSON2E 0x0001000000000000ULL
#define INSN_LOONGSON2F 0x0002000000000000ULL
-#define INSN_VR54XX 0x0004000000000000ULL
-#define INSN_R5900 0x0008000000000000ULL
+#define INSN_LOONGSON3A 0x0004000000000000ULL
+#define INSN_VR54XX 0x0008000000000000ULL
+#define INSN_R5900 0x0010000000000000ULL
/*
* bits 56-63: vendor-specific ASEs
*/
@@ -94,6 +95,8 @@
/* Wave Computing: "nanoMIPS" */
#define CPU_NANOMIPS32 (CPU_MIPS32R6 | ISA_NANOMIPS32)
+#define CPU_LOONGSON3A (CPU_MIPS64R2 | INSN_LOONGSON3A)
+
/*
* Strictly follow the architecture standard:
* - Disallow "special" instruction handling for PMON/SPIM.
diff --git a/target/mips/translate.c b/target/mips/translate.c
index 25b595a..2caf4cb 100644
--- a/target/mips/translate.c
+++ b/target/mips/translate.c
@@ -31206,7 +31206,9 @@ void cpu_state_reset(CPUMIPSState *env)
env->CP0_Config5 = env->cpu_model->CP0_Config5;
env->CP0_Config5_rw_bitmask = env->cpu_model->CP0_Config5_rw_bitmask;
env->CP0_Config6 = env->cpu_model->CP0_Config6;
+ env->CP0_Config6_rw_bitmask = env->cpu_model->CP0_Config6_rw_bitmask;
env->CP0_Config7 = env->cpu_model->CP0_Config7;
+ env->CP0_Config7_rw_bitmask = env->cpu_model->CP0_Config7_rw_bitmask;
env->CP0_LLAddr_rw_bitmask = env->cpu_model->CP0_LLAddr_rw_bitmask
<< env->cpu_model->CP0_LLAddr_shift;
env->CP0_LLAddr_shift = env->cpu_model->CP0_LLAddr_shift;
diff --git a/target/mips/translate_init.inc.c b/target/mips/translate_init.inc.c
index 6d145a9..a31f229 100644
--- a/target/mips/translate_init.inc.c
+++ b/target/mips/translate_init.inc.c
@@ -802,6 +802,92 @@ const mips_def_t mips_defs[] =
.mmu_type = MMU_TYPE_R4000,
},
{
+ .name = "Loongson-3A1000",
+ .CP0_PRid = 0x6305,
+ /* 64KB I-cache and d-cache. 4 way with 32 bit cache line size. */
+ .CP0_Config0 = MIPS_CONFIG0 | (0x1 << CP0C0_AR) | (0x2 << CP0C0_AT) |
+ (MMU_TYPE_R4000 << CP0C0_MT),
+ .CP0_Config1 = MIPS_CONFIG1 | (1 << CP0C1_FP) | (63 << CP0C1_MMU) |
+ (3 << CP0C1_IS) | (4 << CP0C1_IL) | (3 << CP0C1_IA) |
+ (3 << CP0C1_DS) | (4 << CP0C1_DL) | (3 << CP0C1_DA) |
+ (1 << CP0C1_PC) | (1 << CP0C1_WR) | (1 << CP0C1_EP),
+ .CP0_Config2 = MIPS_CONFIG2 | (7 << CP0C2_SS) | (4 << CP0C2_SL) |
+ (3 << CP0C2_SA),
+ .CP0_Config3 = MIPS_CONFIG3 | (1 << CP0C3_LPA),
+ .CP0_LLAddr_rw_bitmask = 0,
+ .SYNCI_Step = 32,
+ .CCRes = 2,
+ .CP0_Status_rw_bitmask = 0x74D8FFFF,
+ .CP0_PageGrain = (1 << CP0PG_ELPA),
+ .CP0_PageGrain_rw_bitmask = (1 << CP0PG_ELPA),
+ .CP1_fcr0 = (0x5 << FCR0_PRID) | (0x1 << FCR0_REV) | (0x1 << FCR0_F64)
|
+ (0x1 << FCR0_PS) | (0x1 << FCR0_L) | (0x1 << FCR0_W) |
+ (0x1 << FCR0_D) | (0x1 << FCR0_S),
+ .CP1_fcr31 = 0,
+ .CP1_fcr31_rw_bitmask = 0xFF83FFFF,
+ .SEGBITS = 42,
+ .PABITS = 48,
+ .insn_flags = CPU_LOONGSON3A,
+ .mmu_type = MMU_TYPE_R4000,
+ },
+ {
+ .name = "Loongson-3A4000",
+ .CP0_PRid = 0x14C000,
+ /* 64KB I-cache and d-cache. 4 way with 32 bit cache line size. */
+ .CP0_Config0 = MIPS_CONFIG0 | (0x1 << CP0C0_AR) | (0x2 << CP0C0_AT) |
+ (MMU_TYPE_R4000 << CP0C0_MT),
+ .CP0_Config1 = MIPS_CONFIG1 | (1 << CP0C1_FP) | (63 << CP0C1_MMU) |
+ (2 << CP0C1_IS) | (5 << CP0C1_IL) | (3 << CP0C1_IA) |
+ (2 << CP0C1_DS) | (5 << CP0C1_DL) | (3 << CP0C1_DA) |
+ (1 << CP0C1_PC) | (1 << CP0C1_WR) | (1 << CP0C1_EP),
+ .CP0_Config2 = MIPS_CONFIG2 | (5 << CP0C2_SS) | (5 << CP0C2_SL) |
+ (15 << CP0C2_SA),
+ .CP0_Config3 = MIPS_CONFIG3 | (1U << CP0C3_M) | (1 << CP0C3_MSAP) |
+ (1 << CP0C3_BP) | (1 << CP0C3_BI) | (1 << CP0C3_ULRI) |
+ (1 << CP0C3_RXI) | (1 << CP0C3_LPA) | (1 << CP0C3_VInt),
+ .CP0_Config4 = MIPS_CONFIG4 | (1U << CP0C4_M) | (2 << CP0C4_IE) |
+ (1 << CP0C4_AE) | (0x1c << CP0C4_KScrExist),
+ .CP0_Config4_rw_bitmask = 0,
+ .CP0_Config5 = MIPS_CONFIG5 | (1 << CP0C5_CRCP) | (1 <<
CP0C5_NFExists),
+ .CP0_Config5_rw_bitmask = (1 << CP0C5_K) | (1 << CP0C5_CV) |
+ (1 << CP0C5_MSAEn) | (1 << CP0C5_UFE) |
+ (1 << CP0C5_FRE) | (1 << CP0C5_SBRI),
+ .CP0_Config6 = (1 << CP0C6_VCLRU) | (1 << CP0C6_DCLRU) |
+ (1 << CP0C6_SFBEN) | (1 << CP0C6_VLTINT) |
+ (1 << CP0C6_INSTPREF) | (1 << CP0C6_DATAPREF),
+ .CP0_Config6_rw_bitmask = (1 << CP0C6_BPPASS) | (0x3f << CP0C6_KPOS) |
+ (1 << CP0C6_KE) | (1 << CP0C6_VTLBONLY) |
+ (1 << CP0C6_LASX) | (1 << CP0C6_SSEN) |
+ (1 << CP0C6_DISDRTIME) | (1 <<
CP0C6_PIXNUEN) |
+ (1 << CP0C6_SCRAND) | (1 << CP0C6_LLEXCEN) |
+ (1 << CP0C6_DISVC) | (1 << CP0C6_VCLRU) |
+ (1 << CP0C6_DCLRU) | (1 << CP0C6_PIXUEN) |
+ (1 << CP0C6_DISBLKLYEN) | (1 <<
CP0C6_UMEMUALEN) |
+ (1 << CP0C6_SFBEN) | (1 << CP0C6_FLTINT) |
+ (1 << CP0C6_VLTINT) | (1 << CP0C6_DISBTB) |
+ (3 << CP0C6_STPREFCTL) | (1 <<
CP0C6_INSTPREF) |
+ (1 << CP0C6_DATAPREF),
+ .CP0_Config7 = 0,
+ .CP0_Config7_rw_bitmask = (1 << CP0C7_NAPCGEN) | (1 << CP0C7_UNIMUEN) |
+ (1 << CP0C7_VFPUCGEN),
+ .CP0_LLAddr_rw_bitmask = 1,
+ .SYNCI_Step = 16,
+ .CCRes = 2,
+ .CP0_Status_rw_bitmask = 0x7DDBFFFF,
+ .CP0_PageGrain = (1 << CP0PG_ELPA),
+ .CP0_PageGrain_rw_bitmask = (1U << CP0PG_RIE) | (1 << CP0PG_XIE) |
+ (1 << CP0PG_ELPA) | (1 << CP0PG_IEC),
+ .CP1_fcr0 = (0x5 << FCR0_PRID) | (0x1 << FCR0_REV) | (0x1 << FCR0_F64)
|
+ (0x1 << FCR0_PS) | (0x1 << FCR0_L) | (0x1 << FCR0_W) |
+ (0x1 << FCR0_D) | (0x1 << FCR0_S),
+ .CP1_fcr31 = 0,
+ .CP1_fcr31_rw_bitmask = 0xFF83FFFF,
+ .SEGBITS = 48,
+ .PABITS = 48,
+ .insn_flags = CPU_LOONGSON3A,
+ .mmu_type = MMU_TYPE_R4000,
+ },
+ {
/* A generic CPU providing MIPS64 DSP R2 ASE features.
FIXME: Eventually this should be replaced by a real CPU model. */
.name = "mips64dspr2",
--
2.7.0
