Specialised VOPs for EQ of fixnum values on x86oids

[sbcl.git] / src / compiler / x86-64 / backend-parms.lisp

diff --git a/src/compiler/x86-64/backend-parms.lisp b/src/compiler/x86-64/backend-parms.lisp
index 8e9e67b..93f2e01 100644 (file)
--- a/src/compiler/x86-64/backend-parms.lisp
+++ b/src/compiler/x86-64/backend-parms.lisp
@@ -33,8 +33,21 @@
 ;;; compatible systems to return different values for getpagesize().
 ;;; -- JES, 2007-01-06
 (eval-when (:compile-toplevel :load-toplevel :execute)
-  (setf *backend-page-bytes* 4096))
+  (setf *backend-page-bytes* 32768))
 
-;;; The size in bytes of the GENCGC pages. Should be a multiple of the
-;;; architecture code size.
-(def!constant gencgc-page-bytes *backend-page-bytes*)
+;;; The size in bytes of GENCGC cards, i.e. the granularity at which
+;;; writes to old generations are logged.  With mprotect-based write
+;;; barriers, this must be a multiple of the OS page size.
+(def!constant gencgc-card-bytes *backend-page-bytes*)
+;;; The minimum size of new allocation regions.  While it doesn't
+;;; currently make a lot of sense to have a card size lower than
+;;; the alloc granularity, it will, once we are smarter about finding
+;;; the start of objects.
+(def!constant gencgc-alloc-granularity 0)
+;;; The minimum size at which we release address ranges to the OS.
+;;; This must be a multiple of the OS page size.
+(def!constant gencgc-release-granularity *backend-page-bytes*)
+
+#!+sb-safepoint
+(def!constant thread-saved-csp-offset
+    (- (/ *backend-page-bytes* n-word-bytes)))