arch/tile: parameterize system PLs to support KVM port

While not a port to KVM (yet), this change modifies the kernel
to be able to build either at PL1 or at PL2 with a suitable
config switch.  Pushing up this change avoids handling branch
merge issues going forward with the KVM work.

Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>

1 files changed, 8 insertions, 8 deletions

diff --git a/arch/tile/kernel/irq.c b/arch/tile/kernel/irq.c
index 596c60086930..394d554f21aa 100644
--- a/arch/tile/kernel/irq.c
+++ b/arch/tile/kernel/irq.c
@@ -61,9 +61,9 @@ static DEFINE_SPINLOCK(available_irqs_lock);
 
 #if CHIP_HAS_IPI()
 /* Use SPRs to manipulate device interrupts. */
-#define mask_irqs(irq_mask) __insn_mtspr(SPR_IPI_MASK_SET_1, irq_mask)
-#define unmask_irqs(irq_mask) __insn_mtspr(SPR_IPI_MASK_RESET_1, irq_mask)
-#define clear_irqs(irq_mask) __insn_mtspr(SPR_IPI_EVENT_RESET_1, irq_mask)
+#define mask_irqs(irq_mask) __insn_mtspr(SPR_IPI_MASK_SET_K, irq_mask)
+#define unmask_irqs(irq_mask) __insn_mtspr(SPR_IPI_MASK_RESET_K, irq_mask)
+#define clear_irqs(irq_mask) __insn_mtspr(SPR_IPI_EVENT_RESET_K, irq_mask)
 #else
 /* Use HV to manipulate device interrupts. */
 #define mask_irqs(irq_mask) hv_disable_intr(irq_mask)
@@ -89,16 +89,16 @@ void tile_dev_intr(struct pt_regs *regs, int intnum)
          * masked by a previous interrupt.  Then, mask out the ones
          * we're going to handle.
          */
-        unsigned long masked = __insn_mfspr(SPR_IPI_MASK_1);
-        original_irqs = __insn_mfspr(SPR_IPI_EVENT_1) & ~masked;
-        __insn_mtspr(SPR_IPI_MASK_SET_1, original_irqs);
+        unsigned long masked = __insn_mfspr(SPR_IPI_MASK_K);
+        original_irqs = __insn_mfspr(SPR_IPI_EVENT_K) & ~masked;
+        __insn_mtspr(SPR_IPI_MASK_SET_K, original_irqs);
 #else
         /*
          * Hypervisor performs the equivalent of the Gx code above and
          * then puts the pending interrupt mask into a system save reg
          * for us to find.
          */
-        original_irqs = __insn_mfspr(SPR_SYSTEM_SAVE_1_3);
+        original_irqs = __insn_mfspr(SPR_SYSTEM_SAVE_K_3);
 #endif
         remaining_irqs = original_irqs;
 
@@ -225,7 +225,7 @@ void __cpuinit setup_irq_regs(void)
         /* Enable interrupt delivery. */
         unmask_irqs(~0UL);
 #if CHIP_HAS_IPI()
-        raw_local_irq_unmask(INT_IPI_1);
+        raw_local_irq_unmask(INT_IPI_K);
 #endif
 }