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target/xtensa: tests: fix timer tests

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Don't expect that CCOUNT increments are equal to the number of executed
instructions. Verify that timer interrupt does not fire before the
programmed CCOMPARE value and does fire after.

Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
This commit is contained in:
Max Filippov 2016-09-05 20:55:13 -07:00
parent 122d302053
commit 72b3b8f24a
1 changed files with 33 additions and 28 deletions
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61
tests/tcg/xtensa/test_timer.S
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@ -1,12 +1,22 @@
#include "macros.inc"
#define CCOUNT_SHIFT 4
#define WAIT_LOOPS 20
.macro make_ccount_delta target, delta
rsr \delta, ccount
rsr \target, ccount
sub \delta, \target, \delta
slli \delta, \delta, CCOUNT_SHIFT
add \target, \target, \delta
.endm
test_suite timer
test ccount
rsr a3, ccount
rsr a4, ccount
sub a3, a4, a3
assert eqi, a3, 1
assert ne, a3, a4
test_end
test ccompare
@ -18,18 +28,18 @@ test ccompare
wsr a2, ccompare1
wsr a2, ccompare2
movi a3, 20
rsr a2, ccount
addi a2, a2, 20
make_ccount_delta a2, a15
wsr a2, ccompare0
rsr a2, interrupt
assert eqi, a2, 0
loop a3, 1f
rsr a3, interrupt
bnez a3, 2f
1:
test_fail
rsr a3, interrupt
rsr a4, ccount
rsr a5, interrupt
sub a4, a4, a2
bgez a4, 2f
assert eqi, a3, 0
j 1b
2:
assert nei, a5, 0
test_end
test ccompare0_interrupt
@ -42,9 +52,8 @@ test ccompare0_interrupt
wsr a2, ccompare1
wsr a2, ccompare2
movi a3, 20
rsr a2, ccount
addi a2, a2, 20
movi a3, WAIT_LOOPS
make_ccount_delta a2, a15
wsr a2, ccompare0
rsync
rsr a2, interrupt
@ -72,9 +81,8 @@ test ccompare1_interrupt
wsr a2, ccompare0
wsr a2, ccompare2
movi a3, 20
rsr a2, ccount
addi a2, a2, 20
movi a3, WAIT_LOOPS
make_ccount_delta a2, a15
wsr a2, ccompare1
rsync
rsr a2, interrupt
@ -99,9 +107,8 @@ test ccompare2_interrupt
wsr a2, ccompare0
wsr a2, ccompare1
movi a3, 20
rsr a2, ccount
addi a2, a2, 20
movi a3, WAIT_LOOPS
make_ccount_delta a2, a15
wsr a2, ccompare2
rsync
rsr a2, interrupt
@ -125,11 +132,10 @@ test ccompare_interrupt_masked
movi a2, 0
wsr a2, ccompare2
movi a3, 40
rsr a2, ccount
addi a2, a2, 20
movi a3, 2 * WAIT_LOOPS
make_ccount_delta a2, a15
wsr a2, ccompare1
addi a2, a2, 20
add a2, a2, a15
wsr a2, ccompare0
rsync
rsr a2, interrupt
@ -156,11 +162,10 @@ test ccompare_interrupt_masked_waiti
movi a2, 0
wsr a2, ccompare2
movi a3, 40
rsr a2, ccount
addi a2, a2, 20
movi a3, 2 * WAIT_LOOPS
make_ccount_delta a2, a15
wsr a2, ccompare1
addi a2, a2, 20
add a2, a2, a15
wsr a2, ccompare0
rsync
rsr a2, interrupt