From: David Gibson <david@gibson.dropbear.id.au>
To: peter.maydell@linaro.org, groug@kaod.org
Cc: Richard Henderson <richard.henderson@linaro.org>,
David Gibson <david@gibson.dropbear.id.au>,
qemu-ppc@nongnu.org, qemu-devel@nongnu.org,
Matheus Ferst <matheus.ferst@eldorado.org.br>
Subject: [PULL 33/42] target/ppc: Move D/DS/X-form integer loads to decodetree
Date: Thu, 3 Jun 2021 18:22:22 +1000 [thread overview]
Message-ID: <20210603082231.601214-34-david@gibson.dropbear.id.au> (raw)
In-Reply-To: <20210603082231.601214-1-david@gibson.dropbear.id.au>
From: Richard Henderson <richard.henderson@linaro.org>
These are all connected by macros in the legacy decoding.
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Matheus Ferst <matheus.ferst@eldorado.org.br>
Message-Id: <20210601193528.2533031-7-matheus.ferst@eldorado.org.br>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
---
target/ppc/insn32.decode | 37 ++++++
target/ppc/translate.c | 147 ++++-----------------
target/ppc/translate/fixedpoint-impl.c.inc | 89 +++++++++++++
3 files changed, 150 insertions(+), 123 deletions(-)
diff --git a/target/ppc/insn32.decode b/target/ppc/insn32.decode
index e7c062d8b4..70f64c235b 100644
--- a/target/ppc/insn32.decode
+++ b/target/ppc/insn32.decode
@@ -20,6 +20,43 @@
&D rt ra si:int64_t
@D ...... rt:5 ra:5 si:s16 &D
+%ds_si 2:s14 !function=times_4
+@DS ...... rt:5 ra:5 .............. .. &D si=%ds_si
+
+&X rt ra rb
+@X ...... rt:5 ra:5 rb:5 .......... . &X
+
+### Fixed-Point Load Instructions
+
+LBZ 100010 ..... ..... ................ @D
+LBZU 100011 ..... ..... ................ @D
+LBZX 011111 ..... ..... ..... 0001010111 - @X
+LBZUX 011111 ..... ..... ..... 0001110111 - @X
+
+LHZ 101000 ..... ..... ................ @D
+LHZU 101001 ..... ..... ................ @D
+LHZX 011111 ..... ..... ..... 0100010111 - @X
+LHZUX 011111 ..... ..... ..... 0100110111 - @X
+
+LHA 101010 ..... ..... ................ @D
+LHAU 101011 ..... ..... ................ @D
+LHAX 011111 ..... ..... ..... 0101010111 - @X
+LHAXU 011111 ..... ..... ..... 0101110111 - @X
+
+LWZ 100000 ..... ..... ................ @D
+LWZU 100001 ..... ..... ................ @D
+LWZX 011111 ..... ..... ..... 0000010111 - @X
+LWZUX 011111 ..... ..... ..... 0000110111 - @X
+
+LWA 111010 ..... ..... ..............10 @DS
+LWAX 011111 ..... ..... ..... 0101010101 - @X
+LWAUX 011111 ..... ..... ..... 0101110101 - @X
+
+LD 111010 ..... ..... ..............00 @DS
+LDU 111010 ..... ..... ..............01 @DS
+LDX 011111 ..... ..... ..... 0000010101 - @X
+LDUX 011111 ..... ..... ..... 0000110101 - @X
+
### Fixed-Point Arithmetic Instructions
ADDI 001110 ..... ..... ................ @D
diff --git a/target/ppc/translate.c b/target/ppc/translate.c
index 3012c7447a..d9238d1d10 100644
--- a/target/ppc/translate.c
+++ b/target/ppc/translate.c
@@ -3323,54 +3323,6 @@ GEN_QEMU_STORE_64(st64, DEF_MEMOP(MO_Q))
GEN_QEMU_STORE_64(st64r, BSWAP_MEMOP(MO_Q))
#endif
-#define GEN_LD(name, ldop, opc, type) \
-static void glue(gen_, name)(DisasContext *ctx) \
-{ \
- TCGv EA; \
- gen_set_access_type(ctx, ACCESS_INT); \
- EA = tcg_temp_new(); \
- gen_addr_imm_index(ctx, EA, 0); \
- gen_qemu_##ldop(ctx, cpu_gpr[rD(ctx->opcode)], EA); \
- tcg_temp_free(EA); \
-}
-
-#define GEN_LDU(name, ldop, opc, type) \
-static void glue(gen_, name##u)(DisasContext *ctx) \
-{ \
- TCGv EA; \
- if (unlikely(rA(ctx->opcode) == 0 || \
- rA(ctx->opcode) == rD(ctx->opcode))) { \
- gen_inval_exception(ctx, POWERPC_EXCP_INVAL_INVAL); \
- return; \
- } \
- gen_set_access_type(ctx, ACCESS_INT); \
- EA = tcg_temp_new(); \
- if (type == PPC_64B) \
- gen_addr_imm_index(ctx, EA, 0x03); \
- else \
- gen_addr_imm_index(ctx, EA, 0); \
- gen_qemu_##ldop(ctx, cpu_gpr[rD(ctx->opcode)], EA); \
- tcg_gen_mov_tl(cpu_gpr[rA(ctx->opcode)], EA); \
- tcg_temp_free(EA); \
-}
-
-#define GEN_LDUX(name, ldop, opc2, opc3, type) \
-static void glue(gen_, name##ux)(DisasContext *ctx) \
-{ \
- TCGv EA; \
- if (unlikely(rA(ctx->opcode) == 0 || \
- rA(ctx->opcode) == rD(ctx->opcode))) { \
- gen_inval_exception(ctx, POWERPC_EXCP_INVAL_INVAL); \
- return; \
- } \
- gen_set_access_type(ctx, ACCESS_INT); \
- EA = tcg_temp_new(); \
- gen_addr_reg_index(ctx, EA); \
- gen_qemu_##ldop(ctx, cpu_gpr[rD(ctx->opcode)], EA); \
- tcg_gen_mov_tl(cpu_gpr[rA(ctx->opcode)], EA); \
- tcg_temp_free(EA); \
-}
-
#define GEN_LDX_E(name, ldop, opc2, opc3, type, type2, chk) \
static void glue(gen_, name##x)(DisasContext *ctx) \
{ \
@@ -3389,21 +3341,6 @@ static void glue(gen_, name##x)(DisasContext *ctx) \
#define GEN_LDX_HVRM(name, ldop, opc2, opc3, type) \
GEN_LDX_E(name, ldop, opc2, opc3, type, PPC_NONE, CHK_HVRM)
-#define GEN_LDS(name, ldop, op, type) \
-GEN_LD(name, ldop, op | 0x20, type); \
-GEN_LDU(name, ldop, op | 0x21, type); \
-GEN_LDUX(name, ldop, 0x17, op | 0x01, type); \
-GEN_LDX(name, ldop, 0x17, op | 0x00, type)
-
-/* lbz lbzu lbzux lbzx */
-GEN_LDS(lbz, ld8u, 0x02, PPC_INTEGER);
-/* lha lhau lhaux lhax */
-GEN_LDS(lha, ld16s, 0x0A, PPC_INTEGER);
-/* lhz lhzu lhzux lhzx */
-GEN_LDS(lhz, ld16u, 0x08, PPC_INTEGER);
-/* lwz lwzu lwzux lwzx */
-GEN_LDS(lwz, ld32u, 0x00, PPC_INTEGER);
-
#define GEN_LDEPX(name, ldop, opc2, opc3) \
static void glue(gen_, name##epx)(DisasContext *ctx) \
{ \
@@ -3424,47 +3361,12 @@ GEN_LDEPX(ld, DEF_MEMOP(MO_Q), 0x1D, 0x00)
#endif
#if defined(TARGET_PPC64)
-/* lwaux */
-GEN_LDUX(lwa, ld32s, 0x15, 0x0B, PPC_64B);
-/* lwax */
-GEN_LDX(lwa, ld32s, 0x15, 0x0A, PPC_64B);
-/* ldux */
-GEN_LDUX(ld, ld64_i64, 0x15, 0x01, PPC_64B);
-/* ldx */
-GEN_LDX(ld, ld64_i64, 0x15, 0x00, PPC_64B);
-
/* CI load/store variants */
GEN_LDX_HVRM(ldcix, ld64_i64, 0x15, 0x1b, PPC_CILDST)
GEN_LDX_HVRM(lwzcix, ld32u, 0x15, 0x15, PPC_CILDST)
GEN_LDX_HVRM(lhzcix, ld16u, 0x15, 0x19, PPC_CILDST)
GEN_LDX_HVRM(lbzcix, ld8u, 0x15, 0x1a, PPC_CILDST)
-static void gen_ld(DisasContext *ctx)
-{
- TCGv EA;
- if (Rc(ctx->opcode)) {
- if (unlikely(rA(ctx->opcode) == 0 ||
- rA(ctx->opcode) == rD(ctx->opcode))) {
- gen_inval_exception(ctx, POWERPC_EXCP_INVAL_INVAL);
- return;
- }
- }
- gen_set_access_type(ctx, ACCESS_INT);
- EA = tcg_temp_new();
- gen_addr_imm_index(ctx, EA, 0x03);
- if (ctx->opcode & 0x02) {
- /* lwa (lwau is undefined) */
- gen_qemu_ld32s(ctx, cpu_gpr[rD(ctx->opcode)], EA);
- } else {
- /* ld - ldu */
- gen_qemu_ld64_i64(ctx, cpu_gpr[rD(ctx->opcode)], EA);
- }
- if (Rc(ctx->opcode)) {
- tcg_gen_mov_tl(cpu_gpr[rA(ctx->opcode)], EA);
- }
- tcg_temp_free(EA);
-}
-
/* lq */
static void gen_lq(DisasContext *ctx)
{
@@ -7637,6 +7539,14 @@ static inline void set_avr64(int regno, TCGv_i64 src, bool high)
tcg_gen_st_i64(src, cpu_env, avr64_offset(regno, high));
}
+/*
+ * Helpers for decodetree used by !function for decoding arguments.
+ */
+static int times_4(DisasContext *ctx, int x)
+{
+ return x * 4;
+}
+
/*
* Helpers for trans_* functions to check for specific insns flags.
* Use token pasting to ensure that we use the proper flag with the
@@ -7663,6 +7573,21 @@ static inline void set_avr64(int regno, TCGv_i64 src, bool high)
# define REQUIRE_64BIT(CTX) REQUIRE_INSNS_FLAGS(CTX, 64B)
#endif
+/*
+ * Helpers for implementing sets of trans_* functions.
+ * Defer the implementation of NAME to FUNC, with optional extra arguments.
+ */
+#define TRANS(NAME, FUNC, ...) \
+ static bool trans_##NAME(DisasContext *ctx, arg_##NAME *a) \
+ { return FUNC(ctx, a, __VA_ARGS__); }
+
+#define TRANS64(NAME, FUNC, ...) \
+ static bool trans_##NAME(DisasContext *ctx, arg_##NAME *a) \
+ { REQUIRE_64BIT(ctx); return FUNC(ctx, a, __VA_ARGS__); }
+
+/* TODO: More TRANS* helpers for extra insn_flags checks. */
+
+
#include "decode-insn32.c.inc"
#include "decode-insn64.c.inc"
#include "translate/fixedpoint-impl.c.inc"
@@ -7847,7 +7772,6 @@ GEN_HANDLER2_E(extswsli1, "extswsli", 0x1F, 0x1B, 0x1B, 0x00000000,
PPC_NONE, PPC2_ISA300),
#endif
#if defined(TARGET_PPC64)
-GEN_HANDLER(ld, 0x3A, 0xFF, 0xFF, 0x00000000, PPC_64B),
GEN_HANDLER(lq, 0x38, 0xFF, 0xFF, 0x00000000, PPC_64BX),
GEN_HANDLER(std, 0x3E, 0xFF, 0xFF, 0x00000000, PPC_64B),
#endif
@@ -8213,34 +8137,11 @@ GEN_PPC64_R2(rldcr, 0x1E, 0x09),
GEN_PPC64_R4(rldimi, 0x1E, 0x06),
#endif
-#undef GEN_LD
-#undef GEN_LDU
-#undef GEN_LDUX
#undef GEN_LDX_E
-#undef GEN_LDS
-#define GEN_LD(name, ldop, opc, type) \
-GEN_HANDLER(name, opc, 0xFF, 0xFF, 0x00000000, type),
-#define GEN_LDU(name, ldop, opc, type) \
-GEN_HANDLER(name##u, opc, 0xFF, 0xFF, 0x00000000, type),
-#define GEN_LDUX(name, ldop, opc2, opc3, type) \
-GEN_HANDLER(name##ux, 0x1F, opc2, opc3, 0x00000001, type),
#define GEN_LDX_E(name, ldop, opc2, opc3, type, type2, chk) \
GEN_HANDLER_E(name##x, 0x1F, opc2, opc3, 0x00000001, type, type2),
-#define GEN_LDS(name, ldop, op, type) \
-GEN_LD(name, ldop, op | 0x20, type) \
-GEN_LDU(name, ldop, op | 0x21, type) \
-GEN_LDUX(name, ldop, 0x17, op | 0x01, type) \
-GEN_LDX(name, ldop, 0x17, op | 0x00, type)
-
-GEN_LDS(lbz, ld8u, 0x02, PPC_INTEGER)
-GEN_LDS(lha, ld16s, 0x0A, PPC_INTEGER)
-GEN_LDS(lhz, ld16u, 0x08, PPC_INTEGER)
-GEN_LDS(lwz, ld32u, 0x00, PPC_INTEGER)
+
#if defined(TARGET_PPC64)
-GEN_LDUX(lwa, ld32s, 0x15, 0x0B, PPC_64B)
-GEN_LDX(lwa, ld32s, 0x15, 0x0A, PPC_64B)
-GEN_LDUX(ld, ld64_i64, 0x15, 0x01, PPC_64B)
-GEN_LDX(ld, ld64_i64, 0x15, 0x00, PPC_64B)
GEN_LDX_E(ldbr, ld64ur_i64, 0x14, 0x10, PPC_NONE, PPC2_DBRX, CHK_NONE)
/* HV/P7 and later only */
diff --git a/target/ppc/translate/fixedpoint-impl.c.inc b/target/ppc/translate/fixedpoint-impl.c.inc
index ce034a14a7..6140dd41ca 100644
--- a/target/ppc/translate/fixedpoint-impl.c.inc
+++ b/target/ppc/translate/fixedpoint-impl.c.inc
@@ -36,6 +36,95 @@ static bool resolve_PLS_D(DisasContext *ctx, arg_D *d, arg_PLS_D *a)
return true;
}
+/*
+ * Fixed-Point Load/Store Instructions
+ */
+
+static bool do_ldst(DisasContext *ctx, int rt, int ra, TCGv displ, bool update,
+ bool store, MemOp mop)
+{
+ TCGv ea;
+
+ if (update && (ra == 0 || (!store && ra == rt))) {
+ gen_invalid(ctx);
+ return true;
+ }
+ gen_set_access_type(ctx, ACCESS_INT);
+
+ ea = tcg_temp_new();
+ if (ra) {
+ tcg_gen_add_tl(ea, cpu_gpr[ra], displ);
+ } else {
+ tcg_gen_mov_tl(ea, displ);
+ }
+ if (NARROW_MODE(ctx)) {
+ tcg_gen_ext32u_tl(ea, ea);
+ }
+ mop ^= ctx->default_tcg_memop_mask;
+ if (store) {
+ tcg_gen_qemu_st_tl(cpu_gpr[rt], ea, ctx->mem_idx, mop);
+ } else {
+ tcg_gen_qemu_ld_tl(cpu_gpr[rt], ea, ctx->mem_idx, mop);
+ }
+ if (update) {
+ tcg_gen_mov_tl(cpu_gpr[ra], ea);
+ }
+ tcg_temp_free(ea);
+
+ return true;
+}
+
+static bool do_ldst_D(DisasContext *ctx, arg_D *a, bool update, bool store,
+ MemOp mop)
+{
+ return do_ldst(ctx, a->rt, a->ra, tcg_constant_tl(a->si), update, store, mop);
+}
+
+static bool do_ldst_X(DisasContext *ctx, arg_X *a, bool update,
+ bool store, MemOp mop)
+{
+ return do_ldst(ctx, a->rt, a->ra, cpu_gpr[a->rb], update, store, mop);
+}
+
+/* Load Byte and Zero */
+TRANS(LBZ, do_ldst_D, false, false, MO_UB)
+TRANS(LBZX, do_ldst_X, false, false, MO_UB)
+TRANS(LBZU, do_ldst_D, true, false, MO_UB)
+TRANS(LBZUX, do_ldst_X, true, false, MO_UB)
+
+/* Load Halfword and Zero */
+TRANS(LHZ, do_ldst_D, false, false, MO_UW)
+TRANS(LHZX, do_ldst_X, false, false, MO_UW)
+TRANS(LHZU, do_ldst_D, true, false, MO_UW)
+TRANS(LHZUX, do_ldst_X, true, false, MO_UW)
+
+/* Load Halfword Algebraic */
+TRANS(LHA, do_ldst_D, false, false, MO_SW)
+TRANS(LHAX, do_ldst_X, false, false, MO_SW)
+TRANS(LHAU, do_ldst_D, true, false, MO_SW)
+TRANS(LHAXU, do_ldst_X, true, false, MO_SW)
+
+/* Load Word and Zero */
+TRANS(LWZ, do_ldst_D, false, false, MO_UL)
+TRANS(LWZX, do_ldst_X, false, false, MO_UL)
+TRANS(LWZU, do_ldst_D, true, false, MO_UL)
+TRANS(LWZUX, do_ldst_X, true, false, MO_UL)
+
+/* Load Word Algebraic */
+TRANS64(LWA, do_ldst_D, false, false, MO_SL)
+TRANS64(LWAX, do_ldst_X, false, false, MO_SL)
+TRANS64(LWAUX, do_ldst_X, true, false, MO_SL)
+
+/* Load Doubleword */
+TRANS64(LD, do_ldst_D, false, false, MO_Q)
+TRANS64(LDX, do_ldst_X, false, false, MO_Q)
+TRANS64(LDU, do_ldst_D, true, false, MO_Q)
+TRANS64(LDUX, do_ldst_X, true, false, MO_Q)
+
+/*
+ * Fixed-Point Arithmetic Instructions
+ */
+
static bool trans_ADDI(DisasContext *ctx, arg_D *a)
{
if (a->ra) {
--
2.31.1
next prev parent reply other threads:[~2021-06-03 8:51 UTC|newest]
Thread overview: 45+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-06-03 8:21 [PULL 00/42] ppc-for-6.1 queue 20210603 David Gibson
2021-06-03 8:21 ` [PULL 01/42] target/ppc: cleaned error_report from ppc_store_sdr1 David Gibson
2021-06-03 8:21 ` [PULL 02/42] target/ppc: moved ppc_store_lpcr and ppc_store_msr to cpu.c David Gibson
2021-06-03 8:21 ` [PULL 03/42] target/ppc: reduce usage of fpscr_set_rounding_mode David Gibson
2021-06-03 8:21 ` [PULL 04/42] target/ppc: removed unnecessary inclusion of helper-proto.h David Gibson
2021-06-03 8:21 ` [PULL 05/42] spapr: Don't hijack current_machine->boot_order David Gibson
2021-06-03 8:21 ` [PULL 06/42] spapr: Fix EEH capability issue on KVM guest for PCI passthru David Gibson
2021-06-03 8:21 ` [PULL 07/42] spapr: nvdimm: Forward declare and move the definitions David Gibson
2021-06-03 8:21 ` [PULL 08/42] spapr: nvdimm: Fix the persistent-memory root node name in device tree David Gibson
2021-06-03 8:21 ` [PULL 09/42] target/ppc: fold ppc_store_ptcr into it's only caller David Gibson
2021-06-03 8:21 ` [PULL 10/42] spapr: Remove stale comment about power-saving LPCR bits David Gibson
2021-06-03 8:22 ` [PULL 11/42] spapr: Set LPCR to current AIL mode when starting a new CPU David Gibson
2021-06-03 8:22 ` [PULL 12/42] target/ppc: used ternary operator when registering MAS David Gibson
2021-06-03 8:22 ` [PULL 13/42] target/ppc: added ifdefs around TCG-only code David Gibson
2021-06-03 8:22 ` [PULL 14/42] target/ppc: created tcg-stub.c file David Gibson
2021-06-03 8:22 ` [PULL 15/42] target/ppc: updated meson.build to support disable-tcg David Gibson
2021-06-03 8:22 ` [PULL 16/42] target/ppc: remove ppc_cpu_dump_statistics David Gibson
2021-06-03 8:22 ` [PULL 17/42] target/ppc: removed mentions to DO_PPC_STATISTICS David Gibson
2021-06-03 8:22 ` [PULL 18/42] monitor: removed cpustats command David Gibson
2021-06-03 8:22 ` [PULL 19/42] ppc/pef.c: initialize cgs->ready in kvmppc_svm_init() David Gibson
2021-06-03 8:22 ` [PULL 20/42] hw/core/cpu: removed cpu_dump_statistics function David Gibson
2021-06-03 8:22 ` [PULL 21/42] HMP: added info cpustats to removed_features.rst David Gibson
2021-06-03 8:22 ` [PULL 22/42] target/ppc: removed GEN_OPCODE decision tree David Gibson
2021-06-03 8:22 ` [PULL 23/42] target/ppc: removed all mentions to PPC_DUMP_CPU David Gibson
2021-06-03 8:22 ` [PULL 24/42] target/ppc: overhauled and moved logic of storing fpscr David Gibson
2021-06-03 8:22 ` [PULL 25/42] target/ppc: powerpc_excp: Move lpes code to where it is used David Gibson
2021-06-03 8:22 ` [PULL 26/42] target/ppc: powerpc_excp: Remove dump_syscall_vectored David Gibson
2021-06-03 8:22 ` [PULL 27/42] target/ppc: powerpc_excp: Consolidade TLB miss code David Gibson
2021-06-03 8:22 ` [PULL 28/42] target/ppc: Introduce macros to check isa extensions David Gibson
2021-06-03 8:22 ` [PULL 29/42] target/ppc: Move page crossing check to ppc_tr_translate_insn David Gibson
2021-06-03 8:22 ` [PULL 30/42] target/ppc: Add infrastructure for prefixed insns David Gibson
2021-06-03 8:22 ` [PULL 31/42] target/ppc: Move ADDI, ADDIS to decodetree, implement PADDI David Gibson
2021-06-03 8:22 ` [PULL 32/42] target/ppc: Implement PNOP David Gibson
2021-06-03 8:22 ` David Gibson [this message]
2021-06-03 8:22 ` [PULL 34/42] target/ppc: Implement prefixed integer load instructions David Gibson
2021-06-03 8:22 ` [PULL 35/42] target/ppc: Move D/DS/X-form integer stores to decodetree David Gibson
2021-06-03 8:22 ` [PULL 36/42] target/ppc: Implement prefixed integer store instructions David Gibson
2021-06-03 8:22 ` [PULL 37/42] target/ppc: Implement setbc/setbcr/stnbc/setnbcr instructions David Gibson
2021-06-03 8:22 ` [PULL 38/42] target/ppc: Implement cfuged instruction David Gibson
2021-06-03 8:22 ` [PULL 39/42] target/ppc: Implement vcfuged instruction David Gibson
2021-06-03 8:22 ` [PULL 40/42] target/ppc: Move addpcis to decodetree David Gibson
2021-06-03 8:22 ` [PULL 41/42] target/ppc: Move cmp/cmpi/cmpl/cmpli " David Gibson
2021-06-03 8:22 ` [PULL 42/42] target/ppc: fix single-step exception regression David Gibson
2021-06-03 9:01 ` [PULL 00/42] ppc-for-6.1 queue 20210603 no-reply
2021-06-03 10:36 ` Peter Maydell
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