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>
diff --git a/arch/blackfin/mach-common/smp.c b/arch/blackfin/mach-common/smp.c
index 35e7e1e..1c143a4 100644
--- a/arch/blackfin/mach-common/smp.c
+++ b/arch/blackfin/mach-common/smp.c
@@ -45,9 +45,7 @@
unsigned long blackfin_iflush_l1_entry[NR_CPUS];
#endif
-void __cpuinitdata *init_retx_coreb, *init_saved_retx_coreb,
- *init_saved_seqstat_coreb, *init_saved_icplb_fault_addr_coreb,
- *init_saved_dcplb_fault_addr_coreb;
+struct blackfin_initial_pda __cpuinitdata initial_pda_coreb;
#define BFIN_IPI_RESCHEDULE 0
#define BFIN_IPI_CALL_FUNC 1
@@ -369,13 +367,16 @@
if (_bfin_swrst & SWRST_DBL_FAULT_B) {
printk(KERN_EMERG "CoreB Recovering from DOUBLE FAULT event\n");
#ifdef CONFIG_DEBUG_DOUBLEFAULT
- printk(KERN_EMERG " While handling exception (EXCAUSE = 0x%x) at %pF\n",
- (int)init_saved_seqstat_coreb & SEQSTAT_EXCAUSE, init_saved_retx_coreb);
- printk(KERN_NOTICE " DCPLB_FAULT_ADDR: %pF\n", init_saved_dcplb_fault_addr_coreb);
- printk(KERN_NOTICE " ICPLB_FAULT_ADDR: %pF\n", init_saved_icplb_fault_addr_coreb);
+ printk(KERN_EMERG " While handling exception (EXCAUSE = %#x) at %pF\n",
+ initial_pda_coreb.seqstat_doublefault & SEQSTAT_EXCAUSE,
+ initial_pda_coreb.retx_doublefault);
+ printk(KERN_NOTICE " DCPLB_FAULT_ADDR: %pF\n",
+ initial_pda_coreb.dcplb_doublefault_addr);
+ printk(KERN_NOTICE " ICPLB_FAULT_ADDR: %pF\n",
+ initial_pda_coreb.icplb_doublefault_addr);
#endif
printk(KERN_NOTICE " The instruction at %pF caused a double exception\n",
- init_retx_coreb);
+ initial_pda_coreb.retx);
}
/*