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authorGen FUKATSU <fukatsu.gen@jp.panasonic.com>2006-09-21 14:08:24 +0100
committerRussell King <rmk+kernel@arm.linux.org.uk>2006-09-25 10:34:06 +0100
commit4cc9bd2eaa1063c68341c1c00e66660adcfdf254 (patch)
tree3ee6d9f6b2075d4a5e340d2a3370f9e068aab723 /arch/arm/vfp/vfp.h
parentf8c440b209581809c5c8acac599410f23597a7b8 (diff)
downloadblackbird-op-linux-4cc9bd2eaa1063c68341c1c00e66660adcfdf254.tar.gz
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[ARM] 3789/4: Fix VFP emulation to ignore VECITR for scalar instruction
VECITR in Floating-Point Exception register indicates the number of remaining short vector iterations after a potential exception was detected. In case of exception caused by scalar instructions, VECITR is NOT updated. Therefore emulation for VFP must ignore VECITR field and treat "veclen" as zero when recognizing scalar instructing. Signed-off-by: Gen Fukatsu <fukatsu.gen@jp.panasonic.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'arch/arm/vfp/vfp.h')
-rw-r--r--arch/arm/vfp/vfp.h11
1 files changed, 11 insertions, 0 deletions
diff --git a/arch/arm/vfp/vfp.h b/arch/arm/vfp/vfp.h
index 96fdf30f6a3b..19ace2e37789 100644
--- a/arch/arm/vfp/vfp.h
+++ b/arch/arm/vfp/vfp.h
@@ -355,3 +355,14 @@ u32 vfp_estimate_sqrt_significand(u32 exponent, u32 significand);
* we check for an error.
*/
#define VFP_EXCEPTION_ERROR ((u32)-1 & ~VFP_NAN_FLAG)
+
+/*
+ * A flag to tell vfp instruction type
+ */
+#define OP_SCALAR (1 << 0)
+#define OP_SD (1 << 1)
+
+struct op {
+ u32 (* const fn)(int dd, int dn, int dm, u32 fpscr);
+ u32 flags;
+};
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