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From: Rafal Jaworowski <raj@FreeBSD.org>
Date: Thu, 16 Apr 2009 11:21:52 +0000 (UTC)
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Subject: svn commit: r191141 - head/sys/arm/arm
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Author: raj
Date: Thu Apr 16 11:21:52 2009
New Revision: 191141
URL: http://svn.freebsd.org/changeset/base/191141

Log:
  Minor style fixes and better comments.

Modified:
  head/sys/arm/arm/cpufunc_asm_armv5_ec.S
  head/sys/arm/arm/cpufunc_asm_sheeva.S

Modified: head/sys/arm/arm/cpufunc_asm_armv5_ec.S
==============================================================================
--- head/sys/arm/arm/cpufunc_asm_armv5_ec.S	Thu Apr 16 11:20:18 2009	(r191140)
+++ head/sys/arm/arm/cpufunc_asm_armv5_ec.S	Thu Apr 16 11:21:52 2009	(r191141)
@@ -204,3 +204,4 @@ ENTRY(armv5_ec_dcache_wbinv_all)
 	bne	1b			/* More to do? */
 	mcr	p15, 0, r0, c7, c10, 4	/* drain the write buffer */
 	RET
+

Modified: head/sys/arm/arm/cpufunc_asm_sheeva.S
==============================================================================
--- head/sys/arm/arm/cpufunc_asm_sheeva.S	Thu Apr 16 11:20:18 2009	(r191140)
+++ head/sys/arm/arm/cpufunc_asm_sheeva.S	Thu Apr 16 11:21:52 2009	(r191141)
@@ -375,6 +375,14 @@ ENTRY(sheeva_l2cache_wbinv_all)
 	mcr	p15, 0, r0, c7, c10, 4	/* drain the write buffer */
 	RET
 
+/* This function modifies register value as follows:
+ *
+ * arg1  arg		EFFECT (bit value saved into register)
+ *    0     0           not changed
+ *    0     1           negated
+ *    1     0           cleared
+ *    1     1           set
+ */
 ENTRY(sheeva_control_ext)
 	mrc	p15, 1, r3, c15, c1, 0	/* Read the control register */
 	bic	r2, r3, r0		/* Clear bits */