Blackfin: optimize double fault boot checking

This moves the double fault data used at boot time into a single struct
which can then easily be addressed with indexed loads rather than having
to explicitly load multiple addresses.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>

arch/blackfin/kernel/asm-offsets.c

@@ -138,6 +138,16 @@ int main(void)
 	DEFINE(PDA_DF_SEQSTAT, offsetof(struct blackfin_pda, seqstat_doublefault));
 	DEFINE(PDA_DF_RETX, offsetof(struct blackfin_pda, retx_doublefault));
 #endif
+
+	/* PDA initial management */
+	DEFINE(PDA_INIT_RETX, offsetof(struct blackfin_initial_pda, retx));
+#ifdef CONFIG_DEBUG_DOUBLEFAULT
+	DEFINE(PDA_INIT_DF_DCPLB, offsetof(struct blackfin_initial_pda, dcplb_doublefault_addr));
+	DEFINE(PDA_INIT_DF_ICPLB, offsetof(struct blackfin_initial_pda, icplb_doublefault_addr));
+	DEFINE(PDA_INIT_DF_SEQSTAT, offsetof(struct blackfin_initial_pda, seqstat_doublefault));
+	DEFINE(PDA_INIT_DF_RETX, offsetof(struct blackfin_initial_pda, retx_doublefault));
+#endif
+
 #ifdef CONFIG_SMP
 	/* Inter-core lock (in L2 SRAM) */
 	DEFINE(SIZEOF_CORELOCK, sizeof(struct corelock_slot));