diff options
| author | Christophe Leroy | 2020-08-18 17:19:18 +0000 |
|---|---|---|
| committer | Michael Ellerman | 2020-12-04 01:01:12 +1100 |
| commit | 7d68c89169508064c460a1208f38ed0589d226fa (patch) | |
| tree | f05cb2b4a8fa03e5a10d3299b77b1414b9921187 /arch/powerpc/kernel/head_book3s_32.S | |
| parent | b6254ced4da6cf28d49fbffe24ee4b3286dcb3f4 (diff) | |
powerpc/32s: Allow deselecting CONFIG_PPC_FPU on mpc832x
The e300c2 core which is embedded in mpc832x CPU doesn't have
an FPU.
Make it possible to not select CONFIG_PPC_FPU when building a
kernel dedicated to that target.
Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/fcdc60d85baf80eaa0a7f3261d9d889282068216.1597770847.git.christophe.leroy@csgroup.eu
Diffstat (limited to 'arch/powerpc/kernel/head_book3s_32.S')
| -rw-r--r-- | arch/powerpc/kernel/head_book3s_32.S | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/arch/powerpc/kernel/head_book3s_32.S b/arch/powerpc/kernel/head_book3s_32.S index ed25d9991233..bbcc84c5cf5f 100644 --- a/arch/powerpc/kernel/head_book3s_32.S +++ b/arch/powerpc/kernel/head_book3s_32.S @@ -394,6 +394,7 @@ Alignment: . = 0x800 DO_KVM 0x800 FPUnavailable: +#ifdef CONFIG_PPC_FPU BEGIN_FTR_SECTION /* * Certain Freescale cores don't have a FPU and treat fp instructions @@ -407,6 +408,9 @@ END_FTR_SECTION_IFSET(CPU_FTR_FPU_UNAVAILABLE) b fast_exception_return 1: addi r3,r1,STACK_FRAME_OVERHEAD EXC_XFER_LITE(0x800, kernel_fp_unavailable_exception) +#else + b ProgramCheck +#endif /* Decrementer */ EXCEPTION(0x900, Decrementer, timer_interrupt, EXC_XFER_LITE) |