svn commit: r336427 - in head/sys: arm64/include riscv/include

[Warner Losh]

Author: imp
Date: Tue Jul 17 21:07:53 2018
New Revision: 336427
URL: https://svnweb.freebsd.org/changeset/base/336427

Log:
  Remove VM_FREELIST_ISADMA. It's not needed on these architectures.
  
  Differential Review: https://reviews.freebsd.org/D16290

Modified:
  head/sys/arm64/include/vmparam.h
  head/sys/riscv/include/vmparam.h

Modified: head/sys/arm64/include/vmparam.h
==============================================================================
--- head/sys/arm64/include/vmparam.h	Tue Jul 17 21:05:08 2018	(r336426)
+++ head/sys/arm64/include/vmparam.h	Tue Jul 17 21:07:53 2018	(r336427)
@@ -67,10 +67,7 @@
 #define	VM_PHYSSEG_SPARSE
 
 /*
- * The number of PHYSSEG entries must be one greater than the number
- * of phys_avail entries because the phys_avail entry that spans the
- * largest physical address that is accessible by ISA DMA is split
- * into two PHYSSEG entries.
+ * The number of PHYSSEG entries.
  */
 #define	VM_PHYSSEG_MAX		64
 
@@ -85,14 +82,11 @@
 #define	VM_FREEPOOL_DIRECT	1
 
 /*
- * Create two free page lists: VM_FREELIST_DEFAULT is for physical
- * pages that are above the largest physical address that is
- * accessible by ISA DMA and VM_FREELIST_ISADMA is for physical pages
- * that are below that address.
+ * Create one free page lists: VM_FREELIST_DEFAULT is for all physical
+ * pages.
  */
-#define	VM_NFREELIST		2
+#define	VM_NFREELIST		1
 #define	VM_FREELIST_DEFAULT	0
-#define	VM_FREELIST_ISADMA	1
 
 /*
  * An allocation size of 16MB is supported in order to optimize the

Modified: head/sys/riscv/include/vmparam.h
==============================================================================
--- head/sys/riscv/include/vmparam.h	Tue Jul 17 21:05:08 2018	(r336426)
+++ head/sys/riscv/include/vmparam.h	Tue Jul 17 21:07:53 2018	(r336427)
@@ -67,10 +67,7 @@
 #define	VM_PHYSSEG_SPARSE
 
 /*
- * The number of PHYSSEG entries must be one greater than the number
- * of phys_avail entries because the phys_avail entry that spans the
- * largest physical address that is accessible by ISA DMA is split
- * into two PHYSSEG entries.
+ * The number of PHYSSEG entries.
  */
 #define	VM_PHYSSEG_MAX		64
 
@@ -85,14 +82,11 @@
 #define	VM_FREEPOOL_DIRECT	1
 
 /*
- * Create two free page lists: VM_FREELIST_DEFAULT is for physical
- * pages that are above the largest physical address that is
- * accessible by ISA DMA and VM_FREELIST_ISADMA is for physical pages
- * that are below that address.
+ * Create one free page list: VM_FREELIST_DEFAULT is for all physical
+ * pages.
  */
-#define	VM_NFREELIST		2
+#define	VM_NFREELIST		1
 #define	VM_FREELIST_DEFAULT	0
-#define	VM_FREELIST_ISADMA	1
 
 /*
  * An allocation size of 16MB is supported in order to optimize the