Changeset 2af1943 for libcfa/src/concurrency/kernel.hfa

Timestamp:

Jul 28, 2022, 11:59:02 AM (2 years ago)

Author:

Thierry Delisle <tdelisle@…>

Branches:

ADT, ast-experimental, master, pthread-emulation

Children:

c4c8571

Parents:

13d326ec

Message:

Small improvements to some of the alignment requirements in CFA runtime.

File:

• libcfa/src/concurrency/kernel.hfa (modified) (3 diffs)

libcfa/src/concurrency/kernel.hfa

@@ -83 +83 @@
 
 // Wrapper around kernel threads
-struct __attribute__((aligned(128))) processor {
+struct __attribute__((aligned(64))) processor {
         // Cluster from which to get threads
         struct cluster * cltr;
@@ -171 +171 @@
 
 // Intrusives lanes which are used by the ready queue
-struct __attribute__((aligned(128))) __intrusive_lane_t;
+union __attribute__((aligned(64))) __intrusive_lane_t;
 void  ?{}(__intrusive_lane_t & this);
 void ^?{}(__intrusive_lane_t & this);
 
 // Aligned timestamps which are used by the ready queue and io subsystem
-struct __attribute__((aligned(128))) __timestamp_t {
-        volatile unsigned long long tv;
-        volatile unsigned long long ma;
-};
-
-static inline void  ?{}(__timestamp_t & this) { this.tv = 0; this.ma = 0; }
+union __attribute__((aligned(64))) __timestamp_t {
+        struct {
+                volatile unsigned long long tv;
+                volatile unsigned long long ma;
+        } t;
+        char __padding[192];
+};
+
+static inline void  ?{}(__timestamp_t & this) { this.t.tv = 0; this.t.ma = 0; }
 static inline void ^?{}(__timestamp_t &) {}
 
@@ -212 +215 @@
 //-----------------------------------------------------------------------------
 // Cluster
-struct __attribute__((aligned(128))) cluster {
+struct __attribute__((aligned(64))) cluster {
         struct {
                 struct {