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[PATCH] target/ppc: Remove support for the PowerPC 602 CPU
|
From: |
Cédric Le Goater |
|
Subject: |
[PATCH] target/ppc: Remove support for the PowerPC 602 CPU |
|
Date: |
Fri, 28 Jan 2022 14:12:27 +0100 |
The 602 was derived from the PowerPC 603, for the gaming market it
seems. It was hardly used and no firmware supporting the CPU could be
found. Drop support.
Signed-off-by: Cédric Le Goater <clg@kaod.org>
---
target/ppc/cpu-models.h | 1 -
target/ppc/cpu.h | 2 -
target/ppc/helper.h | 1 -
target/ppc/cpu-models.c | 2 -
target/ppc/cpu_init.c | 145 -----------------------------------
target/ppc/excp_helper.c | 1 -
target/ppc/int_helper.c | 21 -----
target/ppc/mfrom_table_gen.c | 34 --------
target/ppc/translate.c | 30 --------
target/ppc/mfrom_table.c.inc | 78 -------------------
10 files changed, 315 deletions(-)
delete mode 100644 target/ppc/mfrom_table_gen.c
delete mode 100644 target/ppc/mfrom_table.c.inc
diff --git a/target/ppc/cpu-models.h b/target/ppc/cpu-models.h
index bf1dc7e5ca3d..612978a3fbd2 100644
--- a/target/ppc/cpu-models.h
+++ b/target/ppc/cpu-models.h
@@ -208,7 +208,6 @@ enum {
CPU_POWERPC_601_v0 = 0x00010001,
CPU_POWERPC_601_v1 = 0x00010001,
CPU_POWERPC_601_v2 = 0x00010002,
- CPU_POWERPC_602 = 0x00050100,
CPU_POWERPC_603 = 0x00030100,
CPU_POWERPC_603E_v11 = 0x00060101,
CPU_POWERPC_603E_v12 = 0x00060102,
diff --git a/target/ppc/cpu.h b/target/ppc/cpu.h
index 66e13075c3df..b9119479958c 100644
--- a/target/ppc/cpu.h
+++ b/target/ppc/cpu.h
@@ -2142,8 +2142,6 @@ enum {
PPC_MFTB = 0x0000000000000200ULL,
/* Fixed-point unit extensions */
- /* PowerPC 602 specific */
- PPC_602_SPEC = 0x0000000000000400ULL,
/* isel instruction */
PPC_ISEL = 0x0000000000000800ULL,
/* popcntb instruction */
diff --git a/target/ppc/helper.h b/target/ppc/helper.h
index bdbbd5e1d90f..f2e5060910de 100644
--- a/target/ppc/helper.h
+++ b/target/ppc/helper.h
@@ -646,7 +646,6 @@ DEF_HELPER_FLAGS_2(slbieg, TCG_CALL_NO_RWG, void, env, tl)
DEF_HELPER_FLAGS_2(load_sr, TCG_CALL_NO_RWG, tl, env, tl)
DEF_HELPER_FLAGS_3(store_sr, TCG_CALL_NO_RWG, void, env, tl, tl)
-DEF_HELPER_FLAGS_1(602_mfrom, TCG_CALL_NO_RWG_SE, tl, tl)
DEF_HELPER_1(msgsnd, void, tl)
DEF_HELPER_2(msgclr, void, env, tl)
DEF_HELPER_1(book3s_msgsnd, void, tl)
diff --git a/target/ppc/cpu-models.c b/target/ppc/cpu-models.c
index 764afe5a2afb..a2c720cc4d0c 100644
--- a/target/ppc/cpu-models.c
+++ b/target/ppc/cpu-models.c
@@ -428,8 +428,6 @@
"PowerPC 601v1")
POWERPC_DEF("601_v2", CPU_POWERPC_601_v2, 601v,
"PowerPC 601v2")
- POWERPC_DEF("602", CPU_POWERPC_602, 602,
- "PowerPC 602")
POWERPC_DEF("603", CPU_POWERPC_603, 603,
"PowerPC 603")
POWERPC_DEF("603e_v1.1", CPU_POWERPC_603E_v11, 603E,
diff --git a/target/ppc/cpu_init.c b/target/ppc/cpu_init.c
index 23a13036b211..fc87922261be 100644
--- a/target/ppc/cpu_init.c
+++ b/target/ppc/cpu_init.c
@@ -749,54 +749,6 @@ static void register_G2_sprs(CPUPPCState *env)
0x00000000);
}
-/* SPR specific to PowerPC 602 implementation */
-static void register_602_sprs(CPUPPCState *env)
-{
- /* ESA registers */
- /* XXX : not implemented */
- spr_register(env, SPR_SER, "SER",
- SPR_NOACCESS, SPR_NOACCESS,
- &spr_read_generic, &spr_write_generic,
- 0x00000000);
- /* XXX : not implemented */
- spr_register(env, SPR_SEBR, "SEBR",
- SPR_NOACCESS, SPR_NOACCESS,
- &spr_read_generic, &spr_write_generic,
- 0x00000000);
- /* XXX : not implemented */
- spr_register(env, SPR_ESASRR, "ESASRR",
- SPR_NOACCESS, SPR_NOACCESS,
- &spr_read_generic, &spr_write_generic,
- 0x00000000);
- /* Floating point status */
- /* XXX : not implemented */
- spr_register(env, SPR_SP, "SP",
- SPR_NOACCESS, SPR_NOACCESS,
- &spr_read_generic, &spr_write_generic,
- 0x00000000);
- /* XXX : not implemented */
- spr_register(env, SPR_LT, "LT",
- SPR_NOACCESS, SPR_NOACCESS,
- &spr_read_generic, &spr_write_generic,
- 0x00000000);
- /* Watchdog timer */
- /* XXX : not implemented */
- spr_register(env, SPR_TCR, "TCR",
- SPR_NOACCESS, SPR_NOACCESS,
- &spr_read_generic, &spr_write_generic,
- 0x00000000);
- /* Interrupt base */
- spr_register(env, SPR_IBR, "IBR",
- SPR_NOACCESS, SPR_NOACCESS,
- &spr_read_generic, &spr_write_generic,
- 0x00000000);
- /* XXX : not implemented */
- spr_register(env, SPR_IABR, "IABR",
- SPR_NOACCESS, SPR_NOACCESS,
- &spr_read_generic, &spr_write_generic,
- 0x00000000);
-}
-
/* SPR specific to PowerPC 601 implementation */
static void register_601_sprs(CPUPPCState *env)
{
@@ -2128,33 +2080,6 @@ static void init_excp_601(CPUPPCState *env)
#endif
}
-static void init_excp_602(CPUPPCState *env)
-{
-#if !defined(CONFIG_USER_ONLY)
- /* XXX: exception prefix has a special behavior on 602 */
- env->excp_vectors[POWERPC_EXCP_RESET] = 0x00000100;
- env->excp_vectors[POWERPC_EXCP_MCHECK] = 0x00000200;
- env->excp_vectors[POWERPC_EXCP_DSI] = 0x00000300;
- env->excp_vectors[POWERPC_EXCP_ISI] = 0x00000400;
- env->excp_vectors[POWERPC_EXCP_EXTERNAL] = 0x00000500;
- env->excp_vectors[POWERPC_EXCP_ALIGN] = 0x00000600;
- env->excp_vectors[POWERPC_EXCP_PROGRAM] = 0x00000700;
- env->excp_vectors[POWERPC_EXCP_FPU] = 0x00000800;
- env->excp_vectors[POWERPC_EXCP_DECR] = 0x00000900;
- env->excp_vectors[POWERPC_EXCP_SYSCALL] = 0x00000C00;
- env->excp_vectors[POWERPC_EXCP_TRACE] = 0x00000D00;
- env->excp_vectors[POWERPC_EXCP_IFTLB] = 0x00001000;
- env->excp_vectors[POWERPC_EXCP_DLTLB] = 0x00001100;
- env->excp_vectors[POWERPC_EXCP_DSTLB] = 0x00001200;
- env->excp_vectors[POWERPC_EXCP_IABR] = 0x00001300;
- env->excp_vectors[POWERPC_EXCP_SMI] = 0x00001400;
- env->excp_vectors[POWERPC_EXCP_WDT] = 0x00001500;
- env->excp_vectors[POWERPC_EXCP_EMUL] = 0x00001600;
- /* Hardware reset vector */
- env->hreset_vector = 0x00000100UL;
-#endif
-}
-
static void init_excp_603(CPUPPCState *env)
{
#if !defined(CONFIG_USER_ONLY)
@@ -4081,76 +4006,6 @@ POWERPC_FAMILY(601v)(ObjectClass *oc, void *data)
pcc->flags = POWERPC_FLAG_SE | POWERPC_FLAG_RTC_CLK | POWERPC_FLAG_HID0_LE;
}
-static void init_proc_602(CPUPPCState *env)
-{
- register_ne_601_sprs(env);
- register_sdr1_sprs(env);
- register_602_sprs(env);
- /* Time base */
- register_tbl(env);
- /* hardware implementation registers */
- /* XXX : not implemented */
- spr_register(env, SPR_HID0, "HID0",
- SPR_NOACCESS, SPR_NOACCESS,
- &spr_read_generic, &spr_write_generic,
- 0x00000000);
- /* XXX : not implemented */
- spr_register(env, SPR_HID1, "HID1",
- SPR_NOACCESS, SPR_NOACCESS,
- &spr_read_generic, &spr_write_generic,
- 0x00000000);
- /* Memory management */
- register_low_BATs(env);
- register_6xx_7xx_soft_tlb(env, 64, 2);
- init_excp_602(env);
- env->dcache_line_size = 32;
- env->icache_line_size = 32;
- /* Allocate hardware IRQ controller */
- ppc6xx_irq_init(env_archcpu(env));
-}
-
-POWERPC_FAMILY(602)(ObjectClass *oc, void *data)
-{
- DeviceClass *dc = DEVICE_CLASS(oc);
- PowerPCCPUClass *pcc = POWERPC_CPU_CLASS(oc);
-
- dc->desc = "PowerPC 602";
- pcc->init_proc = init_proc_602;
- pcc->check_pow = check_pow_hid0;
- pcc->insns_flags = PPC_INSNS_BASE | PPC_STRING | PPC_MFTB |
- PPC_FLOAT | PPC_FLOAT_FSEL | PPC_FLOAT_FRES |
- PPC_FLOAT_FRSQRTE | PPC_FLOAT_STFIWX |
- PPC_CACHE | PPC_CACHE_ICBI | PPC_CACHE_DCBZ |
- PPC_MEM_SYNC | PPC_MEM_EIEIO |
- PPC_MEM_TLBIE | PPC_6xx_TLB | PPC_MEM_TLBSYNC |
- PPC_SEGMENT | PPC_602_SPEC;
- pcc->msr_mask = (1ull << MSR_VSX) |
- (1ull << MSR_SA) |
- (1ull << MSR_POW) |
- (1ull << MSR_TGPR) |
- (1ull << MSR_ILE) |
- (1ull << MSR_EE) |
- (1ull << MSR_PR) |
- (1ull << MSR_FP) |
- (1ull << MSR_ME) |
- (1ull << MSR_FE0) |
- (1ull << MSR_SE) |
- (1ull << MSR_DE) |
- (1ull << MSR_FE1) |
- (1ull << MSR_EP) |
- (1ull << MSR_IR) |
- (1ull << MSR_DR) |
- (1ull << MSR_RI) |
- (1ull << MSR_LE);
- /* XXX: 602 MMU is quite specific. Should add a special case */
- pcc->mmu_model = POWERPC_MMU_SOFT_6xx;
- pcc->excp_model = POWERPC_EXCP_602;
- pcc->bus_model = PPC_FLAGS_INPUT_6xx;
- pcc->bfd_mach = bfd_mach_ppc_602;
- pcc->flags = POWERPC_FLAG_TGPR | POWERPC_FLAG_SE |
- POWERPC_FLAG_BE | POWERPC_FLAG_BUS_CLK;
-}
-
static void init_proc_603(CPUPPCState *env)
{
register_ne_601_sprs(env);
diff --git a/target/ppc/excp_helper.c b/target/ppc/excp_helper.c
index 4e6bb87b70a3..c107953dec10 100644
--- a/target/ppc/excp_helper.c
+++ b/target/ppc/excp_helper.c
@@ -1422,7 +1422,6 @@ static inline void powerpc_excp_legacy(PowerPCCPU *cpu,
int excp)
case POWERPC_EXCP_DLTLB: /* Data load TLB miss */
case POWERPC_EXCP_DSTLB: /* Data store TLB miss */
switch (excp_model) {
- case POWERPC_EXCP_602:
case POWERPC_EXCP_603:
case POWERPC_EXCP_G2:
/* Swap temporary saved registers with GPRs */
diff --git a/target/ppc/int_helper.c b/target/ppc/int_helper.c
index 9bc327bcba5a..d7765fd3e3d8 100644
--- a/target/ppc/int_helper.c
+++ b/target/ppc/int_helper.c
@@ -488,27 +488,6 @@ target_ulong helper_divso(CPUPPCState *env, target_ulong
arg1,
}
}
-/*****************************************************************************/
-/* 602 specific instructions */
-/* mfrom is the most crazy instruction ever seen, imho ! */
-/* Real implementation uses a ROM table. Do the same */
-/*
- * Extremely decomposed:
- * -arg / 256
- * return 256 * log10(10 + 1.0) + 0.5
- */
-#if !defined(CONFIG_USER_ONLY)
-target_ulong helper_602_mfrom(target_ulong arg)
-{
- if (likely(arg < 602)) {
-#include "mfrom_table.c.inc"
- return mfrom_ROM_table[arg];
- } else {
- return 0;
- }
-}
-#endif
-
/*****************************************************************************/
/* Altivec extension helpers */
#if defined(HOST_WORDS_BIGENDIAN)
diff --git a/target/ppc/mfrom_table_gen.c b/target/ppc/mfrom_table_gen.c
deleted file mode 100644
index f96c4268ba70..000000000000
--- a/target/ppc/mfrom_table_gen.c
+++ /dev/null
@@ -1,34 +0,0 @@
-#define _GNU_SOURCE
-#include "qemu/osdep.h"
-#include <math.h>
-
-int main(void)
-{
- double d;
- uint8_t n;
- int i;
-
- printf("static const uint8_t mfrom_ROM_table[602] =\n{\n ");
- for (i = 0; i < 602; i++) {
- /*
- * Extremely decomposed:
- * -T0 / 256
- * T0 = 256 * log10(10 + 1.0) + 0.5
- */
- d = -i;
- d /= 256.0;
- d = exp10(d);
- d += 1.0;
- d = log10(d);
- d *= 256;
- d += 0.5;
- n = d;
- printf("%3d, ", n);
- if ((i & 7) == 7) {
- printf("\n ");
- }
- }
- printf("\n};\n");
-
- return 0;
-}
diff --git a/target/ppc/translate.c b/target/ppc/translate.c
index d61c6f0e8f91..c2f436f8d3bc 100644
--- a/target/ppc/translate.c
+++ b/target/ppc/translate.c
@@ -6272,33 +6272,6 @@ static void gen_srq(DisasContext *ctx)
}
}
-/* PowerPC 602 specific instructions */
-
-/* dsa */
-static void gen_dsa(DisasContext *ctx)
-{
- /* XXX: TODO */
- gen_inval_exception(ctx, POWERPC_EXCP_INVAL_INVAL);
-}
-
-/* esa */
-static void gen_esa(DisasContext *ctx)
-{
- /* XXX: TODO */
- gen_inval_exception(ctx, POWERPC_EXCP_INVAL_INVAL);
-}
-
-/* mfrom */
-static void gen_mfrom(DisasContext *ctx)
-{
-#if defined(CONFIG_USER_ONLY)
- GEN_PRIV;
-#else
- CHK_SV;
- gen_helper_602_mfrom(cpu_gpr[rD(ctx->opcode)], cpu_gpr[rA(ctx->opcode)]);
-#endif /* defined(CONFIG_USER_ONLY) */
-}
-
/* 602 - 603 - G2 TLB management */
/* tlbld */
@@ -7779,9 +7752,6 @@ GEN_HANDLER(sriq, 0x1F, 0x18, 0x15, 0x00000000,
PPC_POWER_BR),
GEN_HANDLER(srliq, 0x1F, 0x18, 0x17, 0x00000000, PPC_POWER_BR),
GEN_HANDLER(srlq, 0x1F, 0x18, 0x16, 0x00000000, PPC_POWER_BR),
GEN_HANDLER(srq, 0x1F, 0x18, 0x14, 0x00000000, PPC_POWER_BR),
-GEN_HANDLER(dsa, 0x1F, 0x14, 0x13, 0x03FFF801, PPC_602_SPEC),
-GEN_HANDLER(esa, 0x1F, 0x14, 0x12, 0x03FFF801, PPC_602_SPEC),
-GEN_HANDLER(mfrom, 0x1F, 0x09, 0x08, 0x03E0F801, PPC_602_SPEC),
GEN_HANDLER2(tlbld_6xx, "tlbld", 0x1F, 0x12, 0x1E, 0x03FF0001, PPC_6xx_TLB),
GEN_HANDLER2(tlbli_6xx, "tlbli", 0x1F, 0x12, 0x1F, 0x03FF0001, PPC_6xx_TLB),
GEN_HANDLER(clf, 0x1F, 0x16, 0x03, 0x03E00000, PPC_POWER),
diff --git a/target/ppc/mfrom_table.c.inc b/target/ppc/mfrom_table.c.inc
deleted file mode 100644
index 1653b974a434..000000000000
--- a/target/ppc/mfrom_table.c.inc
+++ /dev/null
@@ -1,78 +0,0 @@
-static const uint8_t mfrom_ROM_table[602] = {
- 77, 77, 76, 76, 75, 75, 74, 74,
- 73, 73, 72, 72, 71, 71, 70, 70,
- 69, 69, 68, 68, 68, 67, 67, 66,
- 66, 65, 65, 64, 64, 64, 63, 63,
- 62, 62, 61, 61, 61, 60, 60, 59,
- 59, 58, 58, 58, 57, 57, 56, 56,
- 56, 55, 55, 54, 54, 54, 53, 53,
- 53, 52, 52, 51, 51, 51, 50, 50,
- 50, 49, 49, 49, 48, 48, 47, 47,
- 47, 46, 46, 46, 45, 45, 45, 44,
- 44, 44, 43, 43, 43, 42, 42, 42,
- 42, 41, 41, 41, 40, 40, 40, 39,
- 39, 39, 39, 38, 38, 38, 37, 37,
- 37, 37, 36, 36, 36, 35, 35, 35,
- 35, 34, 34, 34, 34, 33, 33, 33,
- 33, 32, 32, 32, 32, 31, 31, 31,
- 31, 30, 30, 30, 30, 29, 29, 29,
- 29, 28, 28, 28, 28, 28, 27, 27,
- 27, 27, 26, 26, 26, 26, 26, 25,
- 25, 25, 25, 25, 24, 24, 24, 24,
- 24, 23, 23, 23, 23, 23, 23, 22,
- 22, 22, 22, 22, 21, 21, 21, 21,
- 21, 21, 20, 20, 20, 20, 20, 20,
- 19, 19, 19, 19, 19, 19, 19, 18,
- 18, 18, 18, 18, 18, 17, 17, 17,
- 17, 17, 17, 17, 16, 16, 16, 16,
- 16, 16, 16, 16, 15, 15, 15, 15,
- 15, 15, 15, 15, 14, 14, 14, 14,
- 14, 14, 14, 14, 13, 13, 13, 13,
- 13, 13, 13, 13, 13, 12, 12, 12,
- 12, 12, 12, 12, 12, 12, 12, 11,
- 11, 11, 11, 11, 11, 11, 11, 11,
- 11, 11, 10, 10, 10, 10, 10, 10,
- 10, 10, 10, 10, 10, 9, 9, 9,
- 9, 9, 9, 9, 9, 9, 9, 9,
- 9, 9, 8, 8, 8, 8, 8, 8,
- 8, 8, 8, 8, 8, 8, 8, 8,
- 7, 7, 7, 7, 7, 7, 7, 7,
- 7, 7, 7, 7, 7, 7, 7, 7,
- 7, 6, 6, 6, 6, 6, 6, 6,
- 6, 6, 6, 6, 6, 6, 6, 6,
- 6, 6, 6, 6, 5, 5, 5, 5,
- 5, 5, 5, 5, 5, 5, 5, 5,
- 5, 5, 5, 5, 5, 5, 5, 5,
- 5, 5, 5, 4, 4, 4, 4, 4,
- 4, 4, 4, 4, 4, 4, 4, 4,
- 4, 4, 4, 4, 4, 4, 4, 4,
- 4, 4, 4, 4, 4, 4, 4, 3,
- 3, 3, 3, 3, 3, 3, 3, 3,
- 3, 3, 3, 3, 3, 3, 3, 3,
- 3, 3, 3, 3, 3, 3, 3, 3,
- 3, 3, 3, 3, 3, 3, 3, 3,
- 3, 3, 3, 3, 3, 2, 2, 2,
- 2, 2, 2, 2, 2, 2, 2, 2,
- 2, 2, 2, 2, 2, 2, 2, 2,
- 2, 2, 2, 2, 2, 2, 2, 2,
- 2, 2, 2, 2, 2, 2, 2, 2,
- 2, 2, 2, 2, 2, 2, 2, 2,
- 2, 2, 2, 2, 2, 2, 2, 2,
- 2, 2, 2, 2, 2, 2, 1, 1,
- 1, 1, 1, 1, 1, 1, 1, 1,
- 1, 1, 1, 1, 1, 1, 1, 1,
- 1, 1, 1, 1, 1, 1, 1, 1,
- 1, 1, 1, 1, 1, 1, 1, 1,
- 1, 1, 1, 1, 1, 1, 1, 1,
- 1, 1, 1, 1, 1, 1, 1, 1,
- 1, 1, 1, 1, 1, 1, 1, 1,
- 1, 1, 1, 1, 1, 1, 1, 1,
- 1, 1, 1, 1, 1, 1, 1, 1,
- 1, 1, 1, 1, 1, 1, 1, 1,
- 1, 1, 1, 1, 1, 1, 1, 1,
- 1, 1, 1, 1, 1, 1, 1, 1,
- 1, 1, 1, 1, 1, 1, 1, 1,
- 1, 1, 1, 1, 1, 1, 1, 1,
- 1, 1, 1, 1, 1, 1, 1, 1,
- 1, 0,
-};
--
2.34.1
- [PATCH] target/ppc: Remove support for the PowerPC 602 CPU,
Cédric Le Goater <=