[Qemu-devel] [PATCH for-2.11 03/27] sparc: convert cpu features to qdev properties

[Igor Mammedov <imammedo@redhat.com>]

SPARC is the last target that uses legacy way of parsing
and initializing cpu features, drop legacy approach and
convert features to properties so that SPARC could as minimum
benefit from generic cpu_generic_init(), common with
x86 +-feat parser

PS:
the main purpose is to remove legacy way of cpu creation as
a blocker for unifying cpu creation code across targets.

Signed-off-by: Igor Mammedov <imammedo@redhat.com>
---
CC: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
CC: Artyom Tarasenko <atar4qemu@gmail.com>
CC: Eduardo Habkost <ehabkost@redhat.com>
---
 target/sparc/cpu.c | 66 ++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 66 insertions(+)

diff --git a/target/sparc/cpu.c b/target/sparc/cpu.c
index f4e7343..e735d73 100644
--- a/target/sparc/cpu.c
+++ b/target/sparc/cpu.c
@@ -22,6 +22,8 @@
 #include "cpu.h"
 #include "qemu/error-report.h"
 #include "exec/exec-all.h"
+#include "hw/qdev-properties.h"
+#include "qapi/visitor.h"
 
 //#define DEBUG_FEATURES
 
@@ -853,6 +855,69 @@ static void sparc_cpu_initfn(Object *obj)
     }
 }
 
+static void sparc_get_nwindows(Object *obj, Visitor *v, const char *name,
+                               void *opaque, Error **errp)
+{
+    SPARCCPU *cpu = SPARC_CPU(obj);
+    int64_t value = cpu->env.def.nwindows;
+
+    visit_type_int(v, name, &value, errp);
+}
+
+static void sparc_set_nwindows(Object *obj, Visitor *v, const char *name,
+                               void *opaque, Error **errp)
+{
+    const int64_t min = MIN_NWINDOWS;
+    const int64_t max = MAX_NWINDOWS;
+    SPARCCPU *cpu = SPARC_CPU(obj);
+    Error *err = NULL;
+    int64_t value;
+
+    visit_type_int(v, name, &value, &err);
+    if (err) {
+        error_propagate(errp, err);
+        return;
+    }
+
+    if (value < min || value > max) {
+        error_setg(errp, "Property %s.%s doesn't take value %" PRId64
+                   " (minimum: %" PRId64 ", maximum: %" PRId64 ")",
+                   object_get_typename(obj), name ? name : "null",
+                   value, min, max);
+        return;
+    }
+    cpu->env.def.nwindows = value;
+}
+
+static PropertyInfo qdev_prop_nwindows = {
+    .name  = "int",
+    .get   = sparc_get_nwindows,
+    .set   = sparc_set_nwindows,
+};
+
+static Property sparc_cpu_properties[] = {
+    DEFINE_PROP_BIT("float",    SPARCCPU, env.def.features, 0, false),
+    DEFINE_PROP_BIT("float128", SPARCCPU, env.def.features, 1, false),
+    DEFINE_PROP_BIT("swap",     SPARCCPU, env.def.features, 2, false),
+    DEFINE_PROP_BIT("mul",      SPARCCPU, env.def.features, 3, false),
+    DEFINE_PROP_BIT("div",      SPARCCPU, env.def.features, 4, false),
+    DEFINE_PROP_BIT("flush",    SPARCCPU, env.def.features, 5, false),
+    DEFINE_PROP_BIT("fsqrt",    SPARCCPU, env.def.features, 6, false),
+    DEFINE_PROP_BIT("fmul",     SPARCCPU, env.def.features, 7, false),
+    DEFINE_PROP_BIT("vis1",     SPARCCPU, env.def.features, 8, false),
+    DEFINE_PROP_BIT("vis2",     SPARCCPU, env.def.features, 9, false),
+    DEFINE_PROP_BIT("fsmuld",   SPARCCPU, env.def.features, 10, false),
+    DEFINE_PROP_BIT("hypv",     SPARCCPU, env.def.features, 11, false),
+    DEFINE_PROP_BIT("cmt",      SPARCCPU, env.def.features, 12, false),
+    DEFINE_PROP_BIT("gl",       SPARCCPU, env.def.features, 13, false),
+    DEFINE_PROP_UNSIGNED("iu-version", SPARCCPU, env.def.iu_version, 0,
+                         qdev_prop_uint64, target_ulong),
+    DEFINE_PROP_UINT32("fpu-version", SPARCCPU, env.def.fpu_version, 0),
+    DEFINE_PROP_UINT32("mmu-version", SPARCCPU, env.def.mmu_version, 0),
+    { .name  = "nwindows", .info  = &qdev_prop_nwindows },
+    DEFINE_PROP_END_OF_LIST()
+};
+
 static void sparc_cpu_class_init(ObjectClass *oc, void *data)
 {
     SPARCCPUClass *scc = SPARC_CPU_CLASS(oc);
@@ -861,6 +926,7 @@ static void sparc_cpu_class_init(ObjectClass *oc, void *data)
 
     scc->parent_realize = dc->realize;
     dc->realize = sparc_cpu_realizefn;
+    dc->props = sparc_cpu_properties;
 
     scc->parent_reset = cc->reset;
     cc->reset = sparc_cpu_reset;
-- 
2.7.4