[src/trunk]: src/sys/arch/arm Use armreg_*_{read, write} instead of handcrafte...

[skrll <skrll%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/ff077254d110
branches:  trunk
changeset: 809323:ff077254d110
user:      skrll <skrll%NetBSD.org@localhost>
date:      Thu Jul 02 08:33:31 2015 +0000

description:
Use armreg_*_{read,write} instead of handcrafted asm

No functional change.

diffstat:

 sys/arch/arm/arm/cpufunc.c       |  30 +++++++++++++-----------------
 sys/arch/arm/arm32/sys_machdep.c |   7 ++++---
 2 files changed, 17 insertions(+), 20 deletions(-)

diffs (125 lines):

diff -r 7783cc3dafc1 -r ff077254d110 sys/arch/arm/arm/cpufunc.c
--- a/sys/arch/arm/arm/cpufunc.c        Thu Jul 02 05:11:50 2015 +0000
+++ b/sys/arch/arm/arm/cpufunc.c        Thu Jul 02 08:33:31 2015 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: cpufunc.c,v 1.155 2015/06/03 02:30:11 hsuenaga Exp $   */
+/*     $NetBSD: cpufunc.c,v 1.156 2015/07/02 08:33:31 skrll Exp $      */
 
 /*
  * arm7tdmi support code Copyright (c) 2001 John Fremlin
@@ -49,7 +49,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: cpufunc.c,v 1.155 2015/06/03 02:30:11 hsuenaga Exp $");
+__KERNEL_RCSID(0, "$NetBSD: cpufunc.c,v 1.156 2015/07/02 08:33:31 skrll Exp $");
 
 #include "opt_compat_netbsd.h"
 #include "opt_cpuoptions.h"
@@ -1494,17 +1494,16 @@
 static inline u_int
 get_cachesize_cp15(int cssr)
 {
-       u_int csid;
-
 #if defined(CPU_ARMV7)
        __asm volatile(".arch\tarmv7a");
-       __asm volatile("mcr p15, 2, %0, c0, c0, 0" :: "r" (cssr));
-       __asm volatile("isb" ::: "memory");     /* sync to the new cssr */
+
+       armreg_csselr_write(cssr);
+       arm_isb();                       /* sync to the new cssr */
+
 #else
        __asm volatile("mcr p15, 1, %0, c0, c0, 2" :: "r" (cssr) : "memory");
 #endif
-       __asm volatile("mrc p15, 1, %0, c0, c0, 0" : "=r" (csid));
-       return csid;
+       return armreg_ccsidr_read();
 }
 #endif
 
@@ -1565,8 +1564,7 @@
        u_int ctype, isize, dsize;
        u_int multiplier;
 
-       __asm volatile("mrc p15, 0, %0, c0, c0, 1"
-               : "=r" (ctype));
+       ctype = armreg_ctr_read();
 
        /*
         * ...and thus spake the ARM ARM:
@@ -3002,7 +3000,7 @@
        __asm volatile ("mcr\tp15, 0, r0, c7, c7, 0" : : );
 
        /* Allow detection code to find the VFP if it's fitted.  */
-       __asm volatile ("mcr\tp15, 0, %0, c1, c0, 2" : : "r" (0x0fffffff));
+       armreg_cpacr_write(0x0fffffff);
 
        /* Set the control register */
        curcpu()->ci_ctrl = cpuctrl;
@@ -3051,7 +3049,7 @@
        __asm volatile ("mcr\tp15, 0, r0, c7, c7, 0" : : );
 
        /* Allow detection code to find the VFP if it's fitted.  */
-       __asm volatile ("mcr\tp15, 0, %0, c1, c0, 2" : : "r" (0x0fffffff));
+       armreg_cpacr_write(0x0fffffff);
 
        /* Set the control register */
        curcpu()->ci_ctrl = cpu_control(cpuctrlmask, cpuctrl);
@@ -3274,7 +3272,7 @@
        __asm volatile ("mcr\tp15, 0, %0, c7, c7, 0" : : "r"(sbz));
 
        /* Allow detection code to find the VFP if it's fitted.  */
-       __asm volatile ("mcr\tp15, 0, %0, c1, c0, 2" : : "r" (0x0fffffff));
+       armreg_cpacr_write(0x0fffffff);
 
        /* Set the control register */
        curcpu()->ci_ctrl = cpuctrl;
@@ -3592,15 +3590,13 @@
        cpu_control(0xffffffff, cpuctrl);
 
        /* Make sure write coalescing is turned on */
-       __asm volatile("mrc p15, 0, %0, c1, c0, 1"
-               : "=r" (auxctl));
+       auxctl = armreg_auxctl_read();
 #ifdef XSCALE_NO_COALESCE_WRITES
        auxctl |= XSCALE_AUXCTL_K;
 #else
        auxctl &= ~XSCALE_AUXCTL_K;
 #endif
-       __asm volatile("mcr p15, 0, %0, c1, c0, 1"
-               : : "r" (auxctl));
+       armreg_auxctl_write(auxctl);
 }
 #endif /* CPU_XSCALE */
 
diff -r 7783cc3dafc1 -r ff077254d110 sys/arch/arm/arm32/sys_machdep.c
--- a/sys/arch/arm/arm32/sys_machdep.c  Thu Jul 02 05:11:50 2015 +0000
+++ b/sys/arch/arm/arm32/sys_machdep.c  Thu Jul 02 08:33:31 2015 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: sys_machdep.c,v 1.21 2015/03/22 21:45:12 joerg Exp $   */
+/*     $NetBSD: sys_machdep.c,v 1.22 2015/07/02 08:33:31 skrll Exp $   */
 
 /*
  * Copyright (c) 1995-1997 Mark Brinicombe.
@@ -41,7 +41,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: sys_machdep.c,v 1.21 2015/03/22 21:45:12 joerg Exp $");
+__KERNEL_RCSID(0, "$NetBSD: sys_machdep.c,v 1.22 2015/07/02 08:33:31 skrll Exp $");
 
 #include <sys/param.h>
 #include <sys/systm.h>
@@ -170,8 +170,9 @@
 {
 #ifdef _ARM_ARCH_6
        if (l == curlwp) {
+               u_int val = (u_int)addr;
                kpreempt_disable();
-               __asm __volatile("mcr p15, 0, %0, c13, c0, 3" : : "r" (addr));
+               armreg_tpidruro_write(val);
                kpreempt_enable();
        }
        return 0;