tile: don't assume user privilege is zero

Technically, user privilege is anything less than kernel
privilege.  We modify the existing user_mode() macro to have
this semantic (and use it in a couple of places it wasn't being
used before), and add an IS_KERNEL_EX1() macro to the assembly
code as well.

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

1 files changed, 2 insertions, 2 deletions

diff --git a/arch/tile/mm/fault.c b/arch/tile/mm/fault.c
index 64eec3f9584f..39c48cbe0a96 100644
--- a/arch/tile/mm/fault.c
+++ b/arch/tile/mm/fault.c
@@ -283,7 +283,7 @@ static int handle_page_fault(struct pt_regs *regs,
         flags = (FAULT_FLAG_ALLOW_RETRY | FAULT_FLAG_KILLABLE |
                  (write ? FAULT_FLAG_WRITE : 0));
 
-        is_kernel_mode = (EX1_PL(regs->ex1) != USER_PL);
+        is_kernel_mode = !user_mode(regs);
 
         tsk = validate_current();
 
@@ -824,7 +824,7 @@ void do_page_fault(struct pt_regs *regs, int fault_num,
         }
 
 #if CHIP_HAS_TILE_DMA() || CHIP_HAS_SN_PROC()
-        if (EX1_PL(regs->ex1) != USER_PL) {
+        if (!user_mode(regs)) {
                 struct async_tlb *async;
                 switch (fault_num) {
 #if CHIP_HAS_TILE_DMA()