Commit 72b3b8f2 authored by Max Filippov's avatar Max Filippov
Browse files

target/xtensa: tests: fix timer tests 



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: default avatarMax Filippov <jcmvbkbc@gmail.com>
parent 122d3020

tests/tcg/xtensa/test_timer.S

+33 −28
Original line number Diff line number Diff line 
#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