Commit 0a362d07 authored Jan 15, 2017 by Max Filippov

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 <jcmvbkbc@gmail.com>

parent 4f89b41c

tests/tcg/xtensa/test_timer.S

+34 −0

Original line number	Diff line number	Diff line
		@@ -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