diff options
| author | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 15:20:36 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 15:20:36 -0700 |
| commit | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch) | |
| tree | 0bba044c4ce775e45a88a51686b5d9f90697ea9d /arch/mips/galileo-boards/ev96100/int-handler.S | |
Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
Diffstat (limited to 'arch/mips/galileo-boards/ev96100/int-handler.S')
| -rw-r--r-- | arch/mips/galileo-boards/ev96100/int-handler.S | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/arch/mips/galileo-boards/ev96100/int-handler.S b/arch/mips/galileo-boards/ev96100/int-handler.S new file mode 100644 index 00000000000..ff4d10a3885 --- /dev/null +++ b/arch/mips/galileo-boards/ev96100/int-handler.S @@ -0,0 +1,33 @@ +#include <asm/asm.h> +#include <asm/mipsregs.h> +#include <asm/regdef.h> +#include <asm/stackframe.h> + + .set noat + .align 5 + +NESTED(ev96100IRQ, PT_SIZE, sp) + SAVE_ALL + CLI # Important: mark KERNEL mode ! + + mfc0 t0, CP0_CAUSE # get pending interrupts + mfc0 t1, CP0_STATUS # get enabled interrupts + and t0, t1 # isolate allowed ones + + # FIX ME add R7000 extensions + andi t0,0xff00 # isolate pending bits + andi a0, t0, CAUSEF_IP7 + beq a0, zero, 1f + move a0, sp + jal mips_timer_interrupt + j ret_from_irq + +1: beqz t0, 3f # spurious interrupt + + move a0, t0 + move a1, sp + jal ev96100_cpu_irq + j ret_from_irq + +3: j spurious_interrupt + END(ev96100IRQ) |