diff mbox series

[v2,06/24] target/arm: Split out arm32_max_features

Message ID 20220412003326.588530-7-richard.henderson@linaro.org
State Superseded
Headers show
Series target/arm: 8 new features, A76 and N1 | expand

Commit Message

Richard Henderson April 12, 2022, 12:33 a.m. UTC 
Share the code to set AArch32 max features so that we no
longer have code drift between qemu{-system,}-{arm,aarch64}.

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
---
 target/arm/internals.h |   2 +
 target/arm/cpu64.c     |  50 +-----------------
 target/arm/cpu_tcg.c   | 114 ++++++++++++++++++++++-------------------
 3 files changed, 65 insertions(+), 101 deletions(-)
diff mbox series

Patch

diff --git a/target/arm/internals.h b/target/arm/internals.h
index 96a57ee68f..ca9782b9f0 100644
--- a/target/arm/internals.h
+++ b/target/arm/internals.h
@@ -1301,4 +1301,6 @@  static inline void define_cortex_a72_a57_a53_cp_reginfo(ARMCPU *cpu) { }
 void define_cortex_a72_a57_a53_cp_reginfo(ARMCPU *cpu);
 #endif
 
+void arm32_max_features(ARMCPU *cpu);
+
 #endif
diff --git a/target/arm/cpu64.c b/target/arm/cpu64.c
index 67d628c0af..528b0f5e64 100644
--- a/target/arm/cpu64.c
+++ b/target/arm/cpu64.c
@@ -682,7 +682,6 @@  static void aarch64_max_initfn(Object *obj)
 {
     ARMCPU *cpu = ARM_CPU(obj);
     uint64_t t;
-    uint32_t u;
 
     if (kvm_enabled() || hvf_enabled()) {
         /* With KVM or HVF, '-cpu max' is identical to '-cpu host' */
@@ -797,57 +796,12 @@  static void aarch64_max_initfn(Object *obj)
     t = FIELD_DP64(t, ID_AA64ZFR0, F64MM, 1);
     cpu->isar.id_aa64zfr0 = t;
 
-    /* Replicate the same data to the 32-bit id registers.  */
-    u = cpu->isar.id_isar5;
-    u = FIELD_DP32(u, ID_ISAR5, AES, 2); /* AES + PMULL */
-    u = FIELD_DP32(u, ID_ISAR5, SHA1, 1);
-    u = FIELD_DP32(u, ID_ISAR5, SHA2, 1);
-    u = FIELD_DP32(u, ID_ISAR5, CRC32, 1);
-    u = FIELD_DP32(u, ID_ISAR5, RDM, 1);
-    u = FIELD_DP32(u, ID_ISAR5, VCMA, 1);
-    cpu->isar.id_isar5 = u;
-
-    u = cpu->isar.id_isar6;
-    u = FIELD_DP32(u, ID_ISAR6, JSCVT, 1);
-    u = FIELD_DP32(u, ID_ISAR6, DP, 1);
-    u = FIELD_DP32(u, ID_ISAR6, FHM, 1);
-    u = FIELD_DP32(u, ID_ISAR6, SB, 1);
-    u = FIELD_DP32(u, ID_ISAR6, SPECRES, 1);
-    u = FIELD_DP32(u, ID_ISAR6, BF16, 1);
-    u = FIELD_DP32(u, ID_ISAR6, I8MM, 1);
-    cpu->isar.id_isar6 = u;
-
-    u = cpu->isar.id_pfr0;
-    u = FIELD_DP32(u, ID_PFR0, DIT, 1);
-    cpu->isar.id_pfr0 = u;
-
-    u = cpu->isar.id_pfr2;
-    u = FIELD_DP32(u, ID_PFR2, SSBS, 1);
-    cpu->isar.id_pfr2 = u;
-
-    u = cpu->isar.id_mmfr3;
-    u = FIELD_DP32(u, ID_MMFR3, PAN, 2); /* ATS1E1 */
-    cpu->isar.id_mmfr3 = u;
-
-    u = cpu->isar.id_mmfr4;
-    u = FIELD_DP32(u, ID_MMFR4, HPDS, 1); /* AA32HPD */
-    u = FIELD_DP32(u, ID_MMFR4, AC2, 1); /* ACTLR2, HACTLR2 */
-    u = FIELD_DP32(u, ID_MMFR4, CNP, 1); /* TTCNP */
-    u = FIELD_DP32(u, ID_MMFR4, XNX, 1); /* TTS2UXN */
-    cpu->isar.id_mmfr4 = u;
-
     t = cpu->isar.id_aa64dfr0;
     t = FIELD_DP64(t, ID_AA64DFR0, PMUVER, 5); /* v8.4-PMU */
     cpu->isar.id_aa64dfr0 = t;
 
-    u = cpu->isar.id_dfr0;
-    u = FIELD_DP32(u, ID_DFR0, PERFMON, 5); /* v8.4-PMU */
-    cpu->isar.id_dfr0 = u;
-
-    u = cpu->isar.mvfr1;
-    u = FIELD_DP32(u, MVFR1, FPHP, 3);      /* v8.2-FP16 */
-    u = FIELD_DP32(u, MVFR1, SIMDHP, 2);    /* v8.2-FP16 */
-    cpu->isar.mvfr1 = u;
+    /* Replicate the same data to the 32-bit id registers.  */
+    arm32_max_features(cpu);
 
 #ifdef CONFIG_USER_ONLY
     /*
diff --git a/target/arm/cpu_tcg.c b/target/arm/cpu_tcg.c
index ac782531a7..94af0c3bda 100644
--- a/target/arm/cpu_tcg.c
+++ b/target/arm/cpu_tcg.c
@@ -19,6 +19,66 @@ 
 #include "hw/boards.h"
 #endif
 
+
+/* Share AArch32 -cpu max features with AArch64. */
+void arm32_max_features(ARMCPU *cpu)
+{
+    uint32_t t;
+
+    /* Add additional features supported by QEMU */
+    t = cpu->isar.id_isar5;
+    t = FIELD_DP32(t, ID_ISAR5, AES, 2);
+    t = FIELD_DP32(t, ID_ISAR5, SHA1, 1);
+    t = FIELD_DP32(t, ID_ISAR5, SHA2, 1);
+    t = FIELD_DP32(t, ID_ISAR5, CRC32, 1);
+    t = FIELD_DP32(t, ID_ISAR5, RDM, 1);
+    t = FIELD_DP32(t, ID_ISAR5, VCMA, 1);
+    cpu->isar.id_isar5 = t;
+
+    t = cpu->isar.id_isar6;
+    t = FIELD_DP32(t, ID_ISAR6, JSCVT, 1);
+    t = FIELD_DP32(t, ID_ISAR6, DP, 1);
+    t = FIELD_DP32(t, ID_ISAR6, FHM, 1);
+    t = FIELD_DP32(t, ID_ISAR6, SB, 1);
+    t = FIELD_DP32(t, ID_ISAR6, SPECRES, 1);
+    t = FIELD_DP32(t, ID_ISAR6, BF16, 1);
+    t = FIELD_DP32(t, ID_ISAR6, I8MM, 1);
+    cpu->isar.id_isar6 = t;
+
+    t = cpu->isar.mvfr1;
+    t = FIELD_DP32(t, MVFR1, FPHP, 3);     /* v8.2-FP16 */
+    t = FIELD_DP32(t, MVFR1, SIMDHP, 2);   /* v8.2-FP16 */
+    cpu->isar.mvfr1 = t;
+
+    t = cpu->isar.mvfr2;
+    t = FIELD_DP32(t, MVFR2, SIMDMISC, 3); /* SIMD MaxNum */
+    t = FIELD_DP32(t, MVFR2, FPMISC, 4);   /* FP MaxNum */
+    cpu->isar.mvfr2 = t;
+
+    t = cpu->isar.id_mmfr3;
+    t = FIELD_DP32(t, ID_MMFR3, PAN, 2); /* ATS1E1 */
+    cpu->isar.id_mmfr3 = t;
+
+    t = cpu->isar.id_mmfr4;
+    t = FIELD_DP32(t, ID_MMFR4, HPDS, 1); /* AA32HPD */
+    t = FIELD_DP32(t, ID_MMFR4, AC2, 1); /* ACTLR2, HACTLR2 */
+    t = FIELD_DP32(t, ID_MMFR4, CNP, 1); /* TTCNP */
+    t = FIELD_DP32(t, ID_MMFR4, XNX, 1); /* TTS2UXN */
+    cpu->isar.id_mmfr4 = t;
+
+    t = cpu->isar.id_pfr0;
+    t = FIELD_DP32(t, ID_PFR0, DIT, 1);
+    cpu->isar.id_pfr0 = t;
+
+    t = cpu->isar.id_pfr2;
+    t = FIELD_DP32(t, ID_PFR2, SSBS, 1);
+    cpu->isar.id_pfr2 = t;
+
+    t = cpu->isar.id_dfr0;
+    t = FIELD_DP32(t, ID_DFR0, PERFMON, 5); /* v8.4-PMU */
+    cpu->isar.id_dfr0 = t;
+}
+
 #ifndef CONFIG_USER_ONLY
 static uint64_t l2ctlr_read(CPUARMState *env, const ARMCPRegInfo *ri)
 {
@@ -998,7 +1058,6 @@  static void arm_v7m_class_init(ObjectClass *oc, void *data)
 static void arm_max_initfn(Object *obj)
 {
     ARMCPU *cpu = ARM_CPU(obj);
-    uint32_t t;
 
     /* aarch64_a57_initfn, advertising none of the aarch64 features */
     cpu->dtb_compatible = "arm,cortex-a57";
@@ -1039,58 +1098,7 @@  static void arm_max_initfn(Object *obj)
     cpu->ccsidr[2] = 0x70ffe07a; /* 2048KB L2 cache */
     define_cortex_a72_a57_a53_cp_reginfo(cpu);
 
-    /* Add additional features supported by QEMU */
-    t = cpu->isar.id_isar5;
-    t = FIELD_DP32(t, ID_ISAR5, AES, 2);
-    t = FIELD_DP32(t, ID_ISAR5, SHA1, 1);
-    t = FIELD_DP32(t, ID_ISAR5, SHA2, 1);
-    t = FIELD_DP32(t, ID_ISAR5, CRC32, 1);
-    t = FIELD_DP32(t, ID_ISAR5, RDM, 1);
-    t = FIELD_DP32(t, ID_ISAR5, VCMA, 1);
-    cpu->isar.id_isar5 = t;
-
-    t = cpu->isar.id_isar6;
-    t = FIELD_DP32(t, ID_ISAR6, JSCVT, 1);
-    t = FIELD_DP32(t, ID_ISAR6, DP, 1);
-    t = FIELD_DP32(t, ID_ISAR6, FHM, 1);
-    t = FIELD_DP32(t, ID_ISAR6, SB, 1);
-    t = FIELD_DP32(t, ID_ISAR6, SPECRES, 1);
-    t = FIELD_DP32(t, ID_ISAR6, BF16, 1);
-    t = FIELD_DP32(t, ID_ISAR6, I8MM, 1);
-    cpu->isar.id_isar6 = t;
-
-    t = cpu->isar.mvfr1;
-    t = FIELD_DP32(t, MVFR1, FPHP, 3);     /* v8.2-FP16 */
-    t = FIELD_DP32(t, MVFR1, SIMDHP, 2);   /* v8.2-FP16 */
-    cpu->isar.mvfr1 = t;
-
-    t = cpu->isar.mvfr2;
-    t = FIELD_DP32(t, MVFR2, SIMDMISC, 3); /* SIMD MaxNum */
-    t = FIELD_DP32(t, MVFR2, FPMISC, 4);   /* FP MaxNum */
-    cpu->isar.mvfr2 = t;
-
-    t = cpu->isar.id_mmfr3;
-    t = FIELD_DP32(t, ID_MMFR3, PAN, 2); /* ATS1E1 */
-    cpu->isar.id_mmfr3 = t;
-
-    t = cpu->isar.id_mmfr4;
-    t = FIELD_DP32(t, ID_MMFR4, HPDS, 1); /* AA32HPD */
-    t = FIELD_DP32(t, ID_MMFR4, AC2, 1); /* ACTLR2, HACTLR2 */
-    t = FIELD_DP32(t, ID_MMFR4, CNP, 1); /* TTCNP */
-    t = FIELD_DP32(t, ID_MMFR4, XNX, 1); /* TTS2UXN */
-    cpu->isar.id_mmfr4 = t;
-
-    t = cpu->isar.id_pfr0;
-    t = FIELD_DP32(t, ID_PFR0, DIT, 1);
-    cpu->isar.id_pfr0 = t;
-
-    t = cpu->isar.id_pfr2;
-    t = FIELD_DP32(t, ID_PFR2, SSBS, 1);
-    cpu->isar.id_pfr2 = t;
-
-    t = cpu->isar.id_dfr0;
-    t = FIELD_DP32(t, ID_DFR0, PERFMON, 5); /* v8.4-PMU */
-    cpu->isar.id_dfr0 = t;
+    arm32_max_features(cpu);
 
 #ifdef CONFIG_USER_ONLY
     /*