powerpc/64s: Add support for a store forwarding barrier at kernel entry/exit

[mirror_ubuntu-bionic-kernel.git] / arch / powerpc / include / asm / setup.h

diff --git a/arch/powerpc/include/asm/setup.h b/arch/powerpc/include/asm/setup.h
index bbcdf929be544264142e60f43e5b4a096db51bfc..39baa940881f39d6198ce67367321919ff68eaed 100644 (file)
--- a/arch/powerpc/include/asm/setup.h
+++ b/arch/powerpc/include/asm/setup.h
@@ -39,9 +39,17 @@ static inline void pseries_big_endian_exceptions(void) {}
 static inline void pseries_little_endian_exceptions(void) {}
 #endif /* CONFIG_PPC_PSERIES */
 
-void rfi_flush_enable(bool enable);
-
 /* These are bit flags */
+enum stf_barrier_type {
+       STF_BARRIER_NONE        = 0x1,
+       STF_BARRIER_FALLBACK    = 0x2,
+       STF_BARRIER_EIEIO       = 0x4,
+       STF_BARRIER_SYNC_ORI    = 0x8,
+};
+
+void setup_stf_barrier(void);
+void do_stf_barrier_fixups(enum stf_barrier_type types);
+
 enum l1d_flush_type {
        L1D_FLUSH_NONE          = 0x1,
        L1D_FLUSH_FALLBACK      = 0x2,