svn commit: r230809 - projects/armv6/sys/arm/arm

[Grzegorz Bernacki]

Author: gber
Date: Tue Jan 31 15:19:02 2012
New Revision: 230809
URL: http://svn.freebsd.org/changeset/base/230809

Log:
  pj4b: Fix data corruption in WB mode
  
  pj4b_idcache_wbinv_range function cleaned and invalidated wrong data range,
  thus causing data corruption.
  
  Submitted by: Lukasz Plachno
  Obtained from: Marvell, Semihalf

Modified:
  projects/armv6/sys/arm/arm/cpufunc_asm_pj4b.S

Modified: projects/armv6/sys/arm/arm/cpufunc_asm_pj4b.S
==============================================================================
--- projects/armv6/sys/arm/arm/cpufunc_asm_pj4b.S	Tue Jan 31 13:00:40 2012	(r230808)
+++ projects/armv6/sys/arm/arm/cpufunc_asm_pj4b.S	Tue Jan 31 15:19:02 2012	(r230809)
@@ -94,8 +94,6 @@ ENTRY(armv6_dcache_wbinv_all)
 	RET
 
 ENTRY(pj4b_idcache_wbinv_range)
-	sub	r1, r1, #1
-	add	r1, r0, r1
 	ldr	ip, .Lpj4b_cache_line_size
 	ldr	ip, [ip]
 	sub	r1, r1, #1		/* Don't overrun */