@@ -18,6 +18,9 @@
#include <linux/irqflags.h>
+#define DAIF_PROCCTX 0
+#define DAIF_PROCCTX_NOIRQ PSR_I_BIT
+
/* mask/save/unmask/restore all exceptions, including interrupts. */
static inline void local_daif_mask(void)
{
@@ -66,12 +66,6 @@ static inline void arch_local_irq_disable(void)
: "memory");
}
-#define local_fiq_enable() asm("msr daifclr, #1" : : : "memory")
-#define local_fiq_disable() asm("msr daifset, #1" : : : "memory")
-
-#define local_async_enable() asm("msr daifclr, #4" : : : "memory")
-#define local_async_disable() asm("msr daifset, #4" : : : "memory")
-
/*
* Save the current interrupt enable state.
*/
@@ -48,6 +48,7 @@
#include <asm/fixmap.h>
#include <asm/cpu.h>
#include <asm/cputype.h>
+#include <asm/daifflags.h>
#include <asm/elf.h>
#include <asm/cpufeature.h>
#include <asm/cpu_ops.h>
@@ -262,10 +263,11 @@ void __init setup_arch(char **cmdline_p)
parse_early_param();
/*
- * Unmask asynchronous aborts after bringing up possible earlycon.
- * (Report possible System Errors once we can report this occurred)
+ * Unmask asynchronous aborts and fiq after bringing up possible
+ * earlycon. (Report possible System Errors once we can report this
+ * occurred).
*/
- local_async_enable();
+ local_daif_restore(DAIF_PROCCTX_NOIRQ);
/*
* TTBR0 is only used for the identity mapping at this stage. Make it
@@ -272,8 +272,7 @@ asmlinkage void secondary_start_kernel(void)
set_cpu_online(cpu, true);
complete(&cpu_running);
- local_irq_enable();
- local_async_enable();
+ local_daif_restore(DAIF_PROCCTX);
/*
* OK, it's off to the idle thread for us