mirrors
/
linux-stable
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
1
0
Fork 0
Code Issues Releases Wiki Activity

ARM: 9327/1: vfp: Add missing VFP instructions to neon_support_hook 

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@mediatek.com>
Tested-by: Xuewen Yan <xuewen.yan@unisoc.com>
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
This commit is contained in:
Mark-PK Tsai 2023-10-19 09:35:22 +01:00 committed by Russell King (Oracle)
parent ffc253263a
commit fd7c3c3767
1 changed files with 18 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

18
arch/arm/vfp/vfpmodule.c
View File

@ -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 = {