tests/tcg/xtensa: fix vectors and checks in timer test

Timer test assumes that timer 0 IRQ has level 1 and other timers have
higher level IRQs. This assumption is not correct and the levels may be
arbitrary. Fix that assumption by providing TIMER*_VECTOR macro and
using it for vector selection and by making the check for the timer
exception cause conditional.

Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>

tests/tcg/xtensa/test_timer.S

@@ -38,6 +38,28 @@ test_end
 
 #if XCHAL_NUM_TIMERS
 
+#if INTERRUPT_LEVEL(XCHAL_TIMER0_INTERRUPT) == 1
+#define TIMER0_VECTOR kernel
+#else
+#define TIMER0_VECTOR glue(level, INTERRUPT_LEVEL(XCHAL_TIMER0_INTERRUPT))
+#endif
+
+#if XCHAL_NUM_TIMERS > 1
+#if INTERRUPT_LEVEL(XCHAL_TIMER1_INTERRUPT) == 1
+#define TIMER1_VECTOR kernel
+#else
+#define TIMER1_VECTOR glue(level, INTERRUPT_LEVEL(XCHAL_TIMER1_INTERRUPT))
+#endif
+#endif
+
+#if XCHAL_NUM_TIMERS > 2
+#if INTERRUPT_LEVEL(XCHAL_TIMER2_INTERRUPT) == 1
+#define TIMER2_VECTOR kernel
+#else
+#define TIMER2_VECTOR glue(level, INTERRUPT_LEVEL(XCHAL_TIMER2_INTERRUPT))
+#endif
+#endif
+
 test ccount_update_deadline
     movi    a2, 0
     wsr     a2, intenable
@@ -90,9 +112,8 @@ test ccompare
     assert  nei, a5, 0
 test_end
 
-#if INTERRUPT_LEVEL(XCHAL_TIMER0_INTERRUPT) == 1
 test ccompare0_interrupt
-    set_vector kernel, 2f
+    set_vector TIMER0_VECTOR, 2f
     movi    a2, 0
     wsr     a2, intenable
     rsr     a2, interrupt
@@ -120,15 +141,16 @@ test ccompare0_interrupt
     bnez    a3, 1b
     test_fail
 2:
+#if INTERRUPT_LEVEL(XCHAL_TIMER0_INTERRUPT) == 1
     rsr     a2, exccause
     assert  eqi, a2, 4 /* LEVEL1_INTERRUPT_CAUSE */
-test_end
 #endif
+test_end
 
 #if XCHAL_NUM_TIMERS > 1
 
 test ccompare1_interrupt
-    set_vector glue(level, INTERRUPT_LEVEL(XCHAL_TIMER1_INTERRUPT)), 2f
+    set_vector TIMER1_VECTOR, 2f
     movi    a2, 0
     wsr     a2, intenable
     rsr     a2, interrupt
@@ -153,13 +175,17 @@ test ccompare1_interrupt
     bnez    a3, 1b
     test_fail
 2:
+#if INTERRUPT_LEVEL(XCHAL_TIMER1_INTERRUPT) == 1
+    rsr     a2, exccause
+    assert  eqi, a2, 4 /* LEVEL1_INTERRUPT_CAUSE */
+#endif
 test_end
 
 #endif
 #if XCHAL_NUM_TIMERS > 2
 
 test ccompare2_interrupt
-    set_vector glue(level, INTERRUPT_LEVEL(XCHAL_TIMER2_INTERRUPT)), 2f
+    set_vector TIMER2_VECTOR, 2f
     movi    a2, 0
     wsr     a2, intenable
     rsr     a2, interrupt
@@ -182,12 +208,16 @@ test ccompare2_interrupt
     bnez    a3, 1b
     test_fail
 2:
+#if INTERRUPT_LEVEL(XCHAL_TIMER2_INTERRUPT) == 1
+    rsr     a2, exccause
+    assert  eqi, a2, 4 /* LEVEL1_INTERRUPT_CAUSE */
+#endif
 test_end
 
 #endif
 
 test ccompare_interrupt_masked
-    set_vector kernel, 2f
+    set_vector TIMER0_VECTOR, 2f
     movi    a2, 0
     wsr     a2, intenable
     rsr     a2, interrupt
@@ -217,12 +247,14 @@ test ccompare_interrupt_masked
 
     test_fail
 2:
+#if INTERRUPT_LEVEL(XCHAL_TIMER0_INTERRUPT) == 1
     rsr     a2, exccause
     assert  eqi, a2, 4 /* LEVEL1_INTERRUPT_CAUSE */
+#endif
 test_end
 
 test ccompare_interrupt_masked_waiti
-    set_vector kernel, 2f
+    set_vector TIMER0_VECTOR, 2f
     movi    a2, 0
     wsr     a2, intenable
     rsr     a2, interrupt
@@ -247,8 +279,10 @@ test ccompare_interrupt_masked_waiti
     waiti   0
     test_fail
 2:
+#if INTERRUPT_LEVEL(XCHAL_TIMER0_INTERRUPT) == 1
     rsr     a2, exccause
     assert  eqi, a2, 4 /* LEVEL1_INTERRUPT_CAUSE */
+#endif
 test_end
 
 #endif