svn commit: r270201 - in head/sys: powerpc/include sys

Konstantin Belousov kostikbel at
Wed Aug 20 08:27:06 UTC 2014

On Wed, Aug 20, 2014 at 08:02:38AM +0000, Konstantin Belousov wrote:
> Author: kib
> Date: Wed Aug 20 08:02:38 2014
> New Revision: 270201
> URL:
> Log:
>   Add arch-specific macro SFBUF_PHYS_DMAP(), which should translate the
>   physical address of the page to direct map address, in case
>   SFBUF_OPTIONAL_DIRECT_MAP returns true.  The case of PowerPC AIM
>   64bit, where the page physical address is identical to the direct map
>   address, is accidental.
Real use of this interposer is for sparc64 machines which can use direct
map due to usable cache implementation.

Could someone with the machine identified as SPARC64V test the following
patch ?  Just booting multiuser should be enough.

diff --git a/sys/sparc64/include/vmparam.h b/sys/sparc64/include/vmparam.h
index 8e7d76c..c2f30c3 100644
--- a/sys/sparc64/include/vmparam.h
+++ b/sys/sparc64/include/vmparam.h
@@ -241,5 +241,8 @@ extern vm_offset_t vm_max_kernel_address;
 #define	SFBUF
 #define	SFBUF_MAP
+#define	SFBUF_OPTIONAL_DIRECT_MAP	dcache_color_ignore
+#include <machine/tlb.h>
 #endif /* !_MACHINE_VMPARAM_H_ */
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