diff options
| author | Ard Biesheuvel <ardb@kernel.org> | 2023-03-21 12:01:51 +0100 |
|---|---|---|
| committer | Russell King (Oracle) <rmk+kernel@armlinux.org.uk> | 2023-04-11 11:07:10 +0100 |
| commit | 3a2bdad0b46649cc73fb3b3f9e2b91ef97a7fa63 (patch) | |
| tree | 317ce18fd4ae43d09d2b28c49b423def4563de2b /arch/arm/vfp/entry.S | |
| parent | dae904d96ad6a5fa79bd9d99a3decf93685d398b (diff) | |
ARM: 9293/1: vfp: Pass successful return address via register R3
In preparation for reimplementing the do_vfp()->vfp_support_entry()
handover in C code, switch to using R3 to pass the 'success' return
address, rather than R9, as it cannot be used for parameter passing.
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Tested-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Diffstat (limited to 'arch/arm/vfp/entry.S')
| -rw-r--r-- | arch/arm/vfp/entry.S | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/arm/vfp/entry.S b/arch/arm/vfp/entry.S index cfedc2a3dbd6..6dabb4761778 100644 --- a/arch/arm/vfp/entry.S +++ b/arch/arm/vfp/entry.S @@ -23,6 +23,7 @@ @ ENTRY(do_vfp) mov r1, r10 + mov r3, r9 ldr r4, .LCvfp ldr pc, [r4] @ call VFP entry point ENDPROC(do_vfp) |