[PATCH v2] ARM: vfp: Add missing VFP instructions to neon_support_hook

[Mark-PK Tsai]

Add the missing "Unconditional Advanced SIMD and floating-point
instructions" in [1] to the VFP undef hook.

This commit addresses the issue reported in [2], where
executing the vudot instruction on a platform with FEAT_DotProd
support resulted in an undefined instruction error.

Link: https://developer.arm.com/documentation/ddi0597/2023-06/?lang=en [1]
Link: https://lore.kernel.org/lkml/20230920083907.30479-1-mark-pk.tsai@mediatek.com/ [2]
Signed-off-by: Mark-PK Tsai <mark-pk.tsai at mediatek.com>
---
 arch/arm/vfp/vfpmodule.c | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

diff --git a/arch/arm/vfp/vfpmodule.c b/arch/arm/vfp/vfpmodule.c
index 7e8773a2d99d..b68efe643a12 100644
--- a/arch/arm/vfp/vfpmodule.c
+++ b/arch/arm/vfp/vfpmodule.c
@@ -800,6 +800,24 @@ static struct undef_hook neon_support_hook[] = {{
 	.cpsr_mask	= PSR_T_BIT,
 	.cpsr_val	= PSR_T_BIT,
 	.fn		= vfp_support_entry,
+}, {
+	.instr_mask	= 0xff000800,
+	.instr_val	= 0xfc000800,
+	.cpsr_mask	= 0,
+	.cpsr_val	= 0,
+	.fn		= vfp_support_entry,
+}, {
+	.instr_mask	= 0xff000800,
+	.instr_val	= 0xfd000800,
+	.cpsr_mask	= 0,
+	.cpsr_val	= 0,
+	.fn		= vfp_support_entry,
+}, {
+	.instr_mask	= 0xff000800,
+	.instr_val	= 0xfe000800,
+	.cpsr_mask	= 0,
+	.cpsr_val	= 0,
+	.fn		= vfp_support_entry,
 }};
 
 static struct undef_hook vfp_support_hook = {
-- 
2.18.0