svn commit: r223378 - head/sys/sparc64/include
Marius Strobl
marius at FreeBSD.org
Tue Jun 21 20:48:14 UTC 2011
Author: marius
Date: Tue Jun 21 20:48:14 2011
New Revision: 223378
URL: http://svn.freebsd.org/changeset/base/223378
Log:
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:
head/sys/sparc64/include/tsb.h
head/sys/sparc64/include/vmparam.h
Modified: head/sys/sparc64/include/tsb.h
==============================================================================
--- head/sys/sparc64/include/tsb.h Tue Jun 21 20:47:03 2011 (r223377)
+++ head/sys/sparc64/include/tsb.h Tue Jun 21 20:48:14 2011 (r223378)
@@ -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: head/sys/sparc64/include/vmparam.h
==============================================================================
--- head/sys/sparc64/include/vmparam.h Tue Jun 21 20:47:03 2011 (r223377)
+++ head/sys/sparc64/include/vmparam.h Tue Jun 21 20:48:14 2011 (r223378)
@@ -218,7 +218,7 @@
* 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
/*
@@ -238,6 +238,7 @@
#define UMA_MD_SMALL_ALLOC
+extern u_int tsb_kernel_ldd_phys;
extern vm_offset_t vm_max_kernel_address;
/*
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