powerpc: Cleanup vpa code
register_vpa() doesn't actually do a VPA register call it just uses the flags
you pass it, so rename it to vpa_call() to be clearer.
We can then define register_vpa() and unregister_vpa() which are both simple
wrappers around vpa_call(). (we'll need unregister_vpa() for kexec soon)
We can then cleanup vpa_init(), and because vpa_init() is only called from
platforms/pseries we remove the definition in asm-ppc64/smp.h.
Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
diff --git a/arch/powerpc/platforms/pseries/plpar_wrappers.h b/arch/powerpc/platforms/pseries/plpar_wrappers.h
index 2457be2..382f8c5 100644
--- a/arch/powerpc/platforms/pseries/plpar_wrappers.h
+++ b/arch/powerpc/platforms/pseries/plpar_wrappers.h
@@ -21,13 +21,26 @@
return 0;
}
-static inline long register_vpa(unsigned long flags, unsigned long proc,
+static inline long vpa_call(unsigned long flags, unsigned long cpu,
unsigned long vpa)
{
- return plpar_hcall_norets(H_REGISTER_VPA, flags, proc, vpa);
+ /* flags are in bits 16-18 (counting from most significant bit) */
+ flags = flags << (63 - 18);
+
+ return plpar_hcall_norets(H_REGISTER_VPA, flags, cpu, vpa);
}
-void vpa_init(int cpu);
+static inline long unregister_vpa(unsigned long cpu, unsigned long vpa)
+{
+ return vpa_call(0x5, cpu, vpa);
+}
+
+static inline long register_vpa(unsigned long cpu, unsigned long vpa)
+{
+ return vpa_call(0x1, cpu, vpa);
+}
+
+extern void vpa_init(int cpu);
static inline long plpar_pte_remove(unsigned long flags, unsigned long ptex,
unsigned long avpn, unsigned long *old_pteh_ret,