hw/i386: Consolidate topology functions

Now that we have all the parameters in X86CPUTopoInfo, we can just
pass the structure to calculate the offsets and width.

Signed-off-by: Babu Moger <babu.moger@amd.com>
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Message-Id: <158396717953.58170.5628042059144117669.stgit@naples-babu.amd.com>

1 files changed, 21 insertions, 47 deletions

diff --git a/include/hw/i386/topology.h b/include/hw/i386/topology.h
index 7ea507f376..ba52d49079 100644
--- a/include/hw/i386/topology.h
+++ b/include/hw/i386/topology.h
@@ -69,56 +69,42 @@ static unsigned apicid_bitwidth_for_count(unsigned count)
 
 /* Bit width of the SMT_ID (thread ID) field on the APIC ID
  */
-static inline unsigned apicid_smt_width(unsigned nr_dies,
-                                        unsigned nr_cores,
-                                        unsigned nr_threads)
+static inline unsigned apicid_smt_width(X86CPUTopoInfo *topo_info)
 {
-    return apicid_bitwidth_for_count(nr_threads);
+    return apicid_bitwidth_for_count(topo_info->threads_per_core);
 }
 
 /* Bit width of the Core_ID field
  */
-static inline unsigned apicid_core_width(unsigned nr_dies,
-                                         unsigned nr_cores,
-                                         unsigned nr_threads)
+static inline unsigned apicid_core_width(X86CPUTopoInfo *topo_info)
 {
-    return apicid_bitwidth_for_count(nr_cores);
+    return apicid_bitwidth_for_count(topo_info->cores_per_die);
 }
 
 /* Bit width of the Die_ID field */
-static inline unsigned apicid_die_width(unsigned nr_dies,
-                                        unsigned nr_cores,
-                                        unsigned nr_threads)
+static inline unsigned apicid_die_width(X86CPUTopoInfo *topo_info)
 {
-    return apicid_bitwidth_for_count(nr_dies);
+    return apicid_bitwidth_for_count(topo_info->dies_per_pkg);
 }
 
 /* Bit offset of the Core_ID field
  */
-static inline unsigned apicid_core_offset(unsigned nr_dies,
-                                          unsigned nr_cores,
-                                          unsigned nr_threads)
+static inline unsigned apicid_core_offset(X86CPUTopoInfo *topo_info)
 {
-    return apicid_smt_width(nr_dies, nr_cores, nr_threads);
+    return apicid_smt_width(topo_info);
 }
 
 /* Bit offset of the Die_ID field */
-static inline unsigned apicid_die_offset(unsigned nr_dies,
-                                          unsigned nr_cores,
-                                           unsigned nr_threads)
+static inline unsigned apicid_die_offset(X86CPUTopoInfo *topo_info)
 {
-    return apicid_core_offset(nr_dies, nr_cores, nr_threads) +
-           apicid_core_width(nr_dies, nr_cores, nr_threads);
+    return apicid_core_offset(topo_info) + apicid_core_width(topo_info);
 }
 
 /* Bit offset of the Pkg_ID (socket ID) field
  */
-static inline unsigned apicid_pkg_offset(unsigned nr_dies,
-                                         unsigned nr_cores,
-                                         unsigned nr_threads)
+static inline unsigned apicid_pkg_offset(X86CPUTopoInfo *topo_info)
 {
-    return apicid_die_offset(nr_dies, nr_cores, nr_threads) +
-           apicid_die_width(nr_dies, nr_cores, nr_threads);
+    return apicid_die_offset(topo_info) + apicid_die_width(topo_info);
 }
 
 /* Make APIC ID for the CPU based on Pkg_ID, Core_ID, SMT_ID
@@ -128,16 +114,9 @@ static inline unsigned apicid_pkg_offset(unsigned nr_dies,
 static inline apic_id_t apicid_from_topo_ids(X86CPUTopoInfo *topo_info,
                                              const X86CPUTopoIDs *topo_ids)
 {
-    unsigned nr_dies = topo_info->dies_per_pkg;
-    unsigned nr_cores = topo_info->cores_per_die;
-    unsigned nr_threads = topo_info->threads_per_core;
-
-    return (topo_ids->pkg_id  <<
-               apicid_pkg_offset(nr_dies, nr_cores, nr_threads)) |
-           (topo_ids->die_id  <<
-               apicid_die_offset(nr_dies, nr_cores, nr_threads)) |
-           (topo_ids->core_id <<
-               apicid_core_offset(nr_dies, nr_cores, nr_threads)) |
+    return (topo_ids->pkg_id  << apicid_pkg_offset(topo_info)) |
+           (topo_ids->die_id  << apicid_die_offset(topo_info)) |
+           (topo_ids->core_id << apicid_core_offset(topo_info)) |
            topo_ids->smt_id;
 }
 
@@ -165,20 +144,15 @@ static inline void x86_topo_ids_from_apicid(apic_id_t apicid,
                                             X86CPUTopoInfo *topo_info,
                                             X86CPUTopoIDs *topo_ids)
 {
-    unsigned nr_dies = topo_info->dies_per_pkg;
-    unsigned nr_cores = topo_info->cores_per_die;
-    unsigned nr_threads = topo_info->threads_per_core;
-
     topo_ids->smt_id = apicid &
-            ~(0xFFFFFFFFUL << apicid_smt_width(nr_dies, nr_cores, nr_threads));
+            ~(0xFFFFFFFFUL << apicid_smt_width(topo_info));
     topo_ids->core_id =
-            (apicid >> apicid_core_offset(nr_dies, nr_cores, nr_threads)) &
-            ~(0xFFFFFFFFUL << apicid_core_width(nr_dies, nr_cores, nr_threads));
+            (apicid >> apicid_core_offset(topo_info)) &
+            ~(0xFFFFFFFFUL << apicid_core_width(topo_info));
     topo_ids->die_id =
-            (apicid >> apicid_die_offset(nr_dies, nr_cores, nr_threads)) &
-            ~(0xFFFFFFFFUL << apicid_die_width(nr_dies, nr_cores, nr_threads));
-    topo_ids->pkg_id =
-            apicid >> apicid_pkg_offset(nr_dies, nr_cores, nr_threads);
+            (apicid >> apicid_die_offset(topo_info)) &
+            ~(0xFFFFFFFFUL << apicid_die_width(topo_info));
+    topo_ids->pkg_id = apicid >> apicid_pkg_offset(topo_info);
 }
 
 /* Make APIC ID for the CPU 'cpu_index'