powerpc/8xx: Remove 8xx specific "minimal FPU emulation"
This is duplicated code from math-emu and implements such a small
subset of the FPU (load/stores/fmr) that it's essentially pointless
nowdays.
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
diff --git a/arch/powerpc/kernel/traps.c b/arch/powerpc/kernel/traps.c
index f4b5687..071f6e0 100644
--- a/arch/powerpc/kernel/traps.c
+++ b/arch/powerpc/kernel/traps.c
@@ -1396,8 +1396,7 @@
void SoftwareEmulation(struct pt_regs *regs)
{
extern int do_mathemu(struct pt_regs *);
- extern int Soft_emulate_8xx(struct pt_regs *);
-#if defined(CONFIG_MATH_EMULATION) || defined(CONFIG_8XX_MINIMAL_FPEMU)
+#if defined(CONFIG_MATH_EMULATION)
int errcode;
#endif
@@ -1430,23 +1429,6 @@
_exception(SIGILL, regs, ILL_ILLOPC, regs->nip);
return;
}
-
-#elif defined(CONFIG_8XX_MINIMAL_FPEMU)
- errcode = Soft_emulate_8xx(regs);
- if (errcode >= 0)
- PPC_WARN_EMULATED(8xx, regs);
-
- switch (errcode) {
- case 0:
- emulate_single_step(regs);
- return;
- case 1:
- _exception(SIGILL, regs, ILL_ILLOPC, regs->nip);
- return;
- case -EFAULT:
- _exception(SIGSEGV, regs, SEGV_MAPERR, regs->nip);
- return;
- }
#else
_exception(SIGILL, regs, ILL_ILLOPC, regs->nip);
#endif
@@ -1796,8 +1778,6 @@
WARN_EMULATED_SETUP(unaligned),
#ifdef CONFIG_MATH_EMULATION
WARN_EMULATED_SETUP(math),
-#elif defined(CONFIG_8XX_MINIMAL_FPEMU)
- WARN_EMULATED_SETUP(8xx),
#endif
#ifdef CONFIG_VSX
WARN_EMULATED_SETUP(vsx),