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>

1 files changed, 1 insertions, 21 deletions

diff --git a/arch/powerpc/kernel/traps.c b/arch/powerpc/kernel/traps.c
index f4b5687b0c66..071f6e040eb2 100644
--- a/arch/powerpc/kernel/traps.c
+++ b/arch/powerpc/kernel/traps.c
@@ -1396,8 +1396,7 @@ void performance_monitor_exception(struct pt_regs *regs)
 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 @@ void SoftwareEmulation(struct pt_regs *regs)
                 _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 @@ struct ppc_emulated ppc_emulated = {
         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),