Fix deadlocks in GC on Windows.

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

diff --git a/src/compiler/sparc/backend-parms.lisp b/src/compiler/sparc/backend-parms.lisp
index 3ca7012..47fe7c7 100644 (file)
--- a/src/compiler/sparc/backend-parms.lisp
+++ b/src/compiler/sparc/backend-parms.lisp
@@ -23,5 +23,18 @@
 
 (setf *backend-byte-order* :big-endian)
 
-(setf *backend-page-size* 8192)
+(eval-when (:compile-toplevel :load-toplevel :execute)
+  (setf *backend-page-bytes* 8192))
 
+;;; 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*)