#define PTREGS_OFFSET_SYSCALL PTREGS_OFFSET_REG(TREG_SYSCALL_NR)
+#if CONFIG_KERNEL_PL == 1 || CONFIG_KERNEL_PL == 2
+/*
+ * Set "result" non-zero if ex1 holds the PL of the kernel
+ * (with or without ICS being set). Note this works only
+ * because we never find the PL at level 3.
+ */
+# define IS_KERNEL_EX1(result, ex1) andi result, ex1, CONFIG_KERNEL_PL
+#else
+# error Recode IS_KERNEL_EX1 for CONFIG_KERNEL_PL
+#endif
.macro push_reg reg, ptr=sp, delta=-8
{
*/
{
blbs sp, 2f
- andi r0, r0, SPR_EX_CONTEXT_1_1__PL_MASK /* mask off ICS */
+ IS_KERNEL_EX1(r0, r0)
}
.ifc \vecnum, INT_DOUBLE_FAULT
/*
* If we will be returning to the kernel, we will need to
* reset the interrupt masks to the state they had before.
- * Set DISABLE_IRQ in flags iff we came from PL1 with irqs disabled.
+ * Set DISABLE_IRQ in flags iff we came from kernel pl with
+ * irqs disabled.
*/
mfspr r32, SPR_EX_CONTEXT_K_1
{
- andi r32, r32, SPR_EX_CONTEXT_1_1__PL_MASK /* mask off ICS */
+ IS_KERNEL_EX1(r22, r22)
PTREGS_PTR(r21, PTREGS_OFFSET_FLAGS)
}
beqzt r32, 1f /* zero if from user space */
PTREGS_PTR(r29, PTREGS_OFFSET_EX1)
}
ld r29, r29
- andi r29, r29, SPR_EX_CONTEXT_1_1__PL_MASK /* mask off ICS */
+ IS_KERNEL_EX1(r29, r29)
{
beqzt r29, .Lresume_userspace
move r29, sp
PTREGS_PTR(r32, PTREGS_OFFSET_FLAGS)
}
{
- andi r0, r0, SPR_EX_CONTEXT_1_1__PL_MASK
+ IS_KERNEL_EX1(r0, r0)
ld r32, r32
}
bnez r0, 1f
pop_reg r21, sp, PTREGS_OFFSET_REG(31) - PTREGS_OFFSET_PC
{
mtspr SPR_EX_CONTEXT_K_1, lr
- andi lr, lr, SPR_EX_CONTEXT_1_1__PL_MASK /* mask off ICS */
+ IS_KERNEL_EX1(lr, lr)
}
{
mtspr SPR_EX_CONTEXT_K_0, r21
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();
}
#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()