From 0a362d0768c443cf9e5c36c8398c92bfebe9b8a4 Mon Sep 17 00:00:00 2001 From: Max Filippov Date: Sun, 15 Jan 2017 08:42:31 -0800 Subject: [PATCH] target/xtensa: tests: add ccount write tests Check that CCOUNT SR is writable and that CCOMPARE timers are updated when CCOUNT is written to. Signed-off-by: Max Filippov --- tests/tcg/xtensa/test_timer.S | 34 ++++++++++++++++++++++++++++++++++ 1 file changed, 34 insertions(+) diff --git a/tests/tcg/xtensa/test_timer.S b/tests/tcg/xtensa/test_timer.S index 844c0327aa40..6cda71adbb06 100644 --- a/tests/tcg/xtensa/test_timer.S +++ b/tests/tcg/xtensa/test_timer.S @@ -19,6 +19,40 @@ test ccount assert ne, a3, a4 test_end +test ccount_write + rsr a3, ccount + rsr a4, ccount + sub a4, a4, a3 + movi a2, 0x12345678 + wsr a2, ccount + esync + rsr a3, ccount + sub a3, a3, a2 + slli a4, a4, 2 + assert ltu, a3, a4 +test_end + +test ccount_update_deadline + movi a2, 0 + wsr a2, intenable + rsr a2, interrupt + wsr a2, intclear + movi a2, 0 + wsr a2, ccompare1 + wsr a2, ccompare2 + movi a2, 0x12345678 + wsr a2, ccompare0 + rsr a3, interrupt + assert eqi, a3, 0 + movi a2, 0x12345677 + wsr a2, ccount + esync + nop + rsr a2, interrupt + movi a3, 1 << XCHAL_TIMER0_INTERRUPT + assert eq, a2, a3 +test_end + test ccompare movi a2, 0 wsr a2, intenable