svn commit: r224363 - stable/8/sys/sparc64/include

[Marius Strobl]

Author: marius
Date: Mon Jul 25 18:28:12 2011
New Revision: 224363
URL: http://svn.freebsd.org/changeset/base/224363

Log:
  MFC: r223378
  
  On machines where we don't need to lock the kernel TSB into the dTLB and
  thus may basically use the entire 64-bit kernel address space reduce
  VM_KMEM_SIZE_SCALE to 1 allowing kernel to use more memory.

Modified:
  stable/8/sys/sparc64/include/tsb.h
  stable/8/sys/sparc64/include/vmparam.h
Directory Properties:
  stable/8/sys/   (props changed)
  stable/8/sys/amd64/include/xen/   (props changed)
  stable/8/sys/cddl/contrib/opensolaris/   (props changed)
  stable/8/sys/contrib/dev/acpica/   (props changed)
  stable/8/sys/contrib/pf/   (props changed)
  stable/8/sys/geom/label/   (props changed)

Modified: stable/8/sys/sparc64/include/tsb.h
==============================================================================
--- stable/8/sys/sparc64/include/tsb.h	Mon Jul 25 18:26:54 2011	(r224362)
+++ stable/8/sys/sparc64/include/tsb.h	Mon Jul 25 18:28:12 2011	(r224363)
@@ -50,7 +50,6 @@ extern struct tte *tsb_kernel;
 extern vm_size_t tsb_kernel_mask;
 extern vm_size_t tsb_kernel_size;
 extern vm_paddr_t tsb_kernel_phys;
-extern u_int tsb_kernel_ldd_phys;
 
 static __inline struct tte *
 tsb_vpntobucket(pmap_t pm, vm_offset_t vpn)

Modified: stable/8/sys/sparc64/include/vmparam.h
==============================================================================
--- stable/8/sys/sparc64/include/vmparam.h	Mon Jul 25 18:26:54 2011	(r224362)
+++ stable/8/sys/sparc64/include/vmparam.h	Mon Jul 25 18:28:12 2011	(r224363)
@@ -222,7 +222,7 @@
  * is the total KVA space allocated for kmem_map.
  */
 #ifndef VM_KMEM_SIZE_SCALE
-#define	VM_KMEM_SIZE_SCALE	(3)
+#define	VM_KMEM_SIZE_SCALE	(tsb_kernel_ldd_phys == 0 ? 3 : 1)
 #endif
 
 /*
@@ -242,6 +242,7 @@
 
 #define	UMA_MD_SMALL_ALLOC
 
+extern u_int tsb_kernel_ldd_phys;
 extern vm_offset_t vm_max_kernel_address;
 
 #endif /* !_MACHINE_VMPARAM_H_ */