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authorCatalin Marinas <catalin.marinas@arm.com>2009-07-24 15:32:57 +0400
committerCatalin Marinas <catalin.marinas@arm.com>2009-07-24 15:32:57 +0400
commit07f33a035ddda78095bed64f39db54334776841d (patch)
tree279fca43986fe10f7dc4c7b05c851f79ebd7cb0d /arch/arm/vfp
parent8b592783a2e8b7721a99730bd549aab5208f36af (diff)
downloadlinux-07f33a035ddda78095bed64f39db54334776841d.tar.xz
Thumb-2: Implement the unified VFP support
This patch modifies the VFP files for the ARM/Thumb-2 unified assembly syntax. Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Diffstat (limited to 'arch/arm/vfp')
-rw-r--r--arch/arm/vfp/vfphw.S48
1 files changed, 32 insertions, 16 deletions
diff --git a/arch/arm/vfp/vfphw.S b/arch/arm/vfp/vfphw.S
index 1aeae38725dd..66dc2d03b7fc 100644
--- a/arch/arm/vfp/vfphw.S
+++ b/arch/arm/vfp/vfphw.S
@@ -209,40 +209,55 @@ ENDPROC(vfp_save_state)
last_VFP_context_address:
.word last_VFP_context
-ENTRY(vfp_get_float)
- add pc, pc, r0, lsl #3
+ .macro tbl_branch, base, tmp, shift
+#ifdef CONFIG_THUMB2_KERNEL
+ adr \tmp, 1f
+ add \tmp, \tmp, \base, lsl \shift
+ mov pc, \tmp
+#else
+ add pc, pc, \base, lsl \shift
mov r0, r0
+#endif
+1:
+ .endm
+
+ENTRY(vfp_get_float)
+ tbl_branch r0, r3, #3
.irp dr,0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15
- mrc p10, 0, r0, c\dr, c0, 0 @ fmrs r0, s0
+1: mrc p10, 0, r0, c\dr, c0, 0 @ fmrs r0, s0
mov pc, lr
- mrc p10, 0, r0, c\dr, c0, 4 @ fmrs r0, s1
+ .org 1b + 8
+1: mrc p10, 0, r0, c\dr, c0, 4 @ fmrs r0, s1
mov pc, lr
+ .org 1b + 8
.endr
ENDPROC(vfp_get_float)
ENTRY(vfp_put_float)
- add pc, pc, r1, lsl #3
- mov r0, r0
+ tbl_branch r1, r3, #3
.irp dr,0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15
- mcr p10, 0, r0, c\dr, c0, 0 @ fmsr r0, s0
+1: mcr p10, 0, r0, c\dr, c0, 0 @ fmsr r0, s0
mov pc, lr
- mcr p10, 0, r0, c\dr, c0, 4 @ fmsr r0, s1
+ .org 1b + 8
+1: mcr p10, 0, r0, c\dr, c0, 4 @ fmsr r0, s1
mov pc, lr
+ .org 1b + 8
.endr
ENDPROC(vfp_put_float)
ENTRY(vfp_get_double)
- add pc, pc, r0, lsl #3
- mov r0, r0
+ tbl_branch r0, r3, #3
.irp dr,0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15
- fmrrd r0, r1, d\dr
+1: fmrrd r0, r1, d\dr
mov pc, lr
+ .org 1b + 8
.endr
#ifdef CONFIG_VFPv3
@ d16 - d31 registers
.irp dr,0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15
- mrrc p11, 3, r0, r1, c\dr @ fmrrd r0, r1, d\dr
+1: mrrc p11, 3, r0, r1, c\dr @ fmrrd r0, r1, d\dr
mov pc, lr
+ .org 1b + 8
.endr
#endif
@@ -253,17 +268,18 @@ ENTRY(vfp_get_double)
ENDPROC(vfp_get_double)
ENTRY(vfp_put_double)
- add pc, pc, r2, lsl #3
- mov r0, r0
+ tbl_branch r2, r3, #3
.irp dr,0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15
- fmdrr d\dr, r0, r1
+1: fmdrr d\dr, r0, r1
mov pc, lr
+ .org 1b + 8
.endr
#ifdef CONFIG_VFPv3
@ d16 - d31 registers
.irp dr,0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15
- mcrr p11, 3, r1, r2, c\dr @ fmdrr r1, r2, d\dr
+1: mcrr p11, 3, r1, r2, c\dr @ fmdrr r1, r2, d\dr
mov pc, lr
+ .org 1b + 8
.endr
#endif
ENDPROC(vfp_put_double)