[src/trunk]: src/sys/arch/arm/vfp Add not-yet-enabled code to use vfp_kernel_...

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

details:   https://anonhg.NetBSD.org/src/rev/6a39871000cc
branches:  trunk
changeset: 783504:6a39871000cc
user:      matt <matt%NetBSD.org@localhost>
date:      Wed Dec 26 18:35:47 2012 +0000

description:
Add not-yet-enabled code to use vfp_kernel_{acquire,release}

diffstat:

 sys/arch/arm/vfp/pmap_vfp.S |  22 +++++++++++++++++++++-
 1 files changed, 21 insertions(+), 1 deletions(-)

diffs (75 lines):

diff -r b5a9abc0ace7 -r 6a39871000cc sys/arch/arm/vfp/pmap_vfp.S
--- a/sys/arch/arm/vfp/pmap_vfp.S       Wed Dec 26 18:34:56 2012 +0000
+++ b/sys/arch/arm/vfp/pmap_vfp.S       Wed Dec 26 18:35:47 2012 +0000
@@ -32,7 +32,7 @@
 #include <machine/asm.h>
 #include "assym.h"
 
-RCSID("$NetBSD: pmap_vfp.S,v 1.4 2012/12/11 23:59:18 matt Exp $")
+RCSID("$NetBSD: pmap_vfp.S,v 1.5 2012/12/26 18:35:47 matt Exp $")
 
 /*
  * This zeroes a page 64-bytes at a time.  64 was chosen over 32 since
@@ -40,11 +40,16 @@
  */
 /* LINTSTUB: void bzero_page_vfp(vaddr_t); */
 ENTRY(bzero_page_vfp)
+#if 0
+       str     lr, [sp, #-8]!
+       bl      _C_LABEL(vfp_kernel_acquire)
+#else
        mrc     p10, 7, r3, c8, c0, 0
        tst     r3, #VFP_FPEXC_EN
        orreq   r2, r3, #VFP_FPEXC_EN
        mcreq   p10, 7, r2, c8, c0, 0
        vpush   {d0-d7}
+#endif
 #if (CPU_CORTEX == 0)
        mov     ip, #0
        vmov    s0, ip
@@ -69,9 +74,14 @@
        vstmia  r0!, {d0-d7}
        cmp     r0, r2
        blt     1b
+#if 0
+       ldr     lr, [sp], #8            /* fetch LR */
+       b       _C_LABEL(vfp_kernel_release)    /* tailcall the vfp release */
+#else
        vpop    {d0-d7}
        mcr     p10, 7, r3, c8, c0, 0
        RET
+#endif
 END(bzero_page_vfp)
 
 /*
@@ -86,12 +96,17 @@
        pld     [r0, #64]
        pld     [r0, #96]
 #endif
+#if 0
+       str     lr, [sp, #-8]!
+       bl      _C_LABEL(vfp_kernel_acquire)
+#else
        mrc     p10, 7, r3, c8, c0, 0
        tst     r3, #VFP_FPEXC_EN
        orreq   r2, r3, #VFP_FPEXC_EN
        mcreq   p10, 7, r2, c8, c0, 0
        vpush   {d0-d7}
        add     r2, r0, #PAGE_SIZE-128
+#endif
 1:     
 #ifdef _ARM_ARCH_DWORD_OK
        pld     [r0, #128]              @ preload the next 128
@@ -106,7 +121,12 @@
        cmp     r0, r2
        blt     1b
        beq     2b
+#if 0
+       ldr     lr, [sp], #8            /* fetch LR */
+       b       _C_LABEL(vfp_kernel_release)    /* tailcall the vfp release */
+#else
        vpop    {d0-d7}
        mcr     p10, 7, r3, c8, c0, 0
        RET
+#endif
 END(bcopy_page_vfp)