diff options
author | bd <bdunahu@operationnull.com> | 2025-03-11 17:24:37 -0400 |
---|---|---|
committer | bd <bdunahu@operationnull.com> | 2025-03-11 17:24:37 -0400 |
commit | d743af4b5df01e3a75725912bee1d00b8fe573dd (patch) | |
tree | 4de529c2e8a762503b99db77efc73cdc98104bb0 /tests/dram.cc | |
parent | 97173af3651138db50cc42df25b474af2b6ece43 (diff) | |
parent | 92e8c2583695a3bf652e0e8dedb79e7a99922f5f (diff) |
Merge remote-tracking branch 'origin/master' into bdunahu
Diffstat (limited to 'tests/dram.cc')
-rw-r--r-- | tests/dram.cc | 465 |
1 files changed, 415 insertions, 50 deletions
diff --git a/tests/dram.cc b/tests/dram.cc index 27fc24f..72a6d14 100644 --- a/tests/dram.cc +++ b/tests/dram.cc @@ -22,7 +22,7 @@ TEST_CASE( signed int w = 0x11223344; - Response r = d->write(MEM, w, 0x00000000); + Response r = d->write_word(MEM, w, 0x00000000); CHECK(r == OK); expected.at(0) = w; @@ -46,7 +46,7 @@ TEST_CASE( int i; Response r; for (i = 0; i < delay; ++i) { - r = d->write(MEM, w, 0x00000000); + r = d->write_word(MEM, w, 0x00000000); CHECK(r == WAIT); actual = d->view(0, 1)[0]; @@ -54,7 +54,7 @@ TEST_CASE( d->resolve(); } - r = d->write(MEM, w, 0x00000000); + r = d->write_word(MEM, w, 0x00000000); CHECK(r == OK); d->resolve(); @@ -81,7 +81,7 @@ TEST_CASE( int i; Response r; for (i = 0; i < delay; ++i) { - r = d->write(MEM, w, 0x00000000); + r = d->write_word(MEM, w, 0x00000000); CHECK(r == WAIT); actual = d->view(0, 1)[0]; @@ -89,11 +89,11 @@ TEST_CASE( d->resolve(); } - r = d->write(MEM, w, 0x00000000); + r = d->write_word(MEM, w, 0x00000000); REQUIRE(r == OK); // clock cycle did NOT resolve yet! // this fetch should not make progress - r = d->write(FETCH, w, 0x00000001); + r = d->write_word(FETCH, w, 0x00000001); CHECK(r == WAIT); actual = d->view(0, 1)[0]; @@ -105,7 +105,7 @@ TEST_CASE( REQUIRE(expected == actual); for (i = 0; i < delay; ++i) { - r = d->write(FETCH, w, 0x00000001); + r = d->write_word(FETCH, w, 0x00000001); CHECK(r == WAIT); actual = d->view(0, 1)[0]; @@ -113,7 +113,7 @@ TEST_CASE( d->resolve(); } - r = d->write(FETCH, w, 0x00000001); + r = d->write_word(FETCH, w, 0x00000001); actual = d->view(0, 1)[0]; CHECK(r == OK); @@ -140,10 +140,10 @@ TEST_CASE( int i; Response r; for (i = 0; i < delay; ++i) { - r = d->write(MEM, w, 0x00000000); + r = d->write_word(MEM, w, 0x00000000); CHECK(r == WAIT); - r = d->write(FETCH, w, 0x00000001); + r = d->write_word(FETCH, w, 0x00000001); CHECK(r == WAIT); actual = d->view(0, 1)[0]; @@ -151,9 +151,9 @@ TEST_CASE( d->resolve(); } - r = d->write(MEM, w, 0x00000000); + r = d->write_word(MEM, w, 0x00000000); CHECK(r == OK); - r = d->write(FETCH, w, 0x00000001); + r = d->write_word(FETCH, w, 0x00000001); CHECK(r == WAIT); d->resolve(); @@ -162,10 +162,10 @@ TEST_CASE( REQUIRE(expected == actual); for (i = 0; i < delay; ++i) { - r = d->write(FETCH, w, 0x00000001); + r = d->write_word(FETCH, w, 0x00000001); CHECK(r == WAIT); - r = d->write(MEM, w, 0x00000003); + r = d->write_word(MEM, w, 0x00000003); CHECK(r == WAIT); actual = d->view(0, 1)[0]; @@ -173,10 +173,10 @@ TEST_CASE( d->resolve(); } - r = d->write(FETCH, w, 0x00000001); + r = d->write_word(FETCH, w, 0x00000001); actual = d->view(0, 1)[0]; CHECK(r == OK); - r = d->write(MEM, w, 0x00000003); + r = d->write_word(MEM, w, 0x00000003); CHECK(r == WAIT); expected.at(1) = w; @@ -186,7 +186,372 @@ TEST_CASE( delete d; } -TEST_CASE("Construct singleton dram, write a line to an address, read it in zero cycles", "[dram]") +TEST_CASE( + "Construct singleton dram, store line in zero cycles", "[dram]") +{ + Dram *d = new Dram(1, 0); + std::array<signed int, LINE_SIZE> expected = {0, 0, 0, 0}; + std::array<signed int, LINE_SIZE> actual = d->view(0, 1)[0]; + CHECK(expected == actual); + + signed int w = 0x11223344; + expected = {w, w+1, w+2, w+3}; + + Response r = d->write_line(MEM, expected, 0x00000000); + CHECK(r == OK); + + actual = d->view(0, 1)[0]; + REQUIRE(expected == actual); + + delete d; +} + +TEST_CASE( + "Construct singleton dram, store line in three cycles", "[dram]") +{ + int delay = 3; + Dram *d = new Dram(1, delay); + std::array<signed int, LINE_SIZE> expected = {0, 0, 0, 0}; + std::array<signed int, LINE_SIZE> actual = d->view(0, 1)[0]; + CHECK(expected == actual); + + signed int w = 0x11223344; + std::array<signed int, LINE_SIZE> written_line = {w, w+1, w+2, w+3}; + + int i; + Response r; + for (i = 0; i < delay; ++i) { + r = d->write_line(MEM, written_line, 0x00000000); + CHECK(r == WAIT); + + actual = d->view(0, 1)[0]; + REQUIRE(expected == actual); + d->resolve(); + } + + r = d->write_line(MEM, written_line, 0x00000000); + CHECK(r == OK); + d->resolve(); + + expected = written_line; + actual = d->view(0, 1)[0]; + REQUIRE(expected == actual); + + delete d; +} + +TEST_CASE( + "Construct singleton dram, store line in three cycles no " + "conflict", + "[dram]") +{ + int delay = 3; + Dram *d = new Dram(1, delay); + std::array<signed int, LINE_SIZE> expected = {0, 0, 0, 0}; + std::array<signed int, LINE_SIZE> actual = d->view(0, 1)[0]; + CHECK(expected == actual); + + signed int w = 0x11223344; + std::array<signed int, LINE_SIZE> written_line = {w, w+1, w+2, w+3}; + + int i; + Response r; + for (i = 0; i < delay; ++i) { + r = d->write_line(MEM, written_line, 0x00000000); + CHECK(r == WAIT); + + actual = d->view(0, 1)[0]; + REQUIRE(expected == actual); + d->resolve(); + } + + r = d->write_line(MEM, written_line, 0x00000000); + REQUIRE(r == OK); + // clock cycle did NOT resolve yet! + // this fetch should not make progress + r = d->write_line(FETCH, written_line, 0x00000001); + CHECK(r == WAIT); + + actual = d->view(0, 1)[0]; + CHECK(r == WAIT); + d->resolve(); + + expected = written_line; + actual = d->view(0, 1)[0]; + REQUIRE(expected == actual); + + written_line = {w+4, w+5, w+6, w+7}; + + for (i = 0; i < delay; ++i) { + r = d->write_line(FETCH, written_line, 0x00000001); + CHECK(r == WAIT); + + actual = d->view(0, 1)[0]; + REQUIRE(expected == actual); + d->resolve(); + } + + r = d->write_line(FETCH, written_line, 0x00000001); + actual = d->view(0, 1)[0]; + CHECK(r == OK); + + expected = written_line; + actual = d->view(0, 1)[0]; + REQUIRE(expected == actual); + + delete d; +} + +TEST_CASE( + "Construct singleton dram, store line in three cycles much " + "conflict", + "[dram]") +{ + int delay = 2; + Dram *d = new Dram(1, 2); + std::array<signed int, LINE_SIZE> expected = {0, 0, 0, 0}; + std::array<signed int, LINE_SIZE> actual = d->view(0, 1)[0]; + CHECK(expected == actual); + + signed int w = 0x11223344; + std::array<signed int, LINE_SIZE> written_line = {w, w+1, w+2, w+3}; + + int i; + Response r; + for (i = 0; i < delay; ++i) { + r = d->write_line(MEM, written_line, 0x00000000); + CHECK(r == WAIT); + + r = d->write_line(FETCH, written_line, 0x00000001); + CHECK(r == WAIT); + + actual = d->view(0, 1)[0]; + REQUIRE(expected == actual); + d->resolve(); + } + + r = d->write_line(MEM, written_line, 0x00000000); + CHECK(r == OK); + r = d->write_line(FETCH, written_line, 0x00000001); + CHECK(r == WAIT); + d->resolve(); + + actual = d->view(0, 1)[0]; + expected = written_line; + REQUIRE(expected == actual); + + written_line = {w+4, w+5, w+6, w+7}; + for (i = 0; i < delay; ++i) { + r = d->write_line(FETCH, written_line, 0x00000001); + CHECK(r == WAIT); + + r = d->write_line(MEM, written_line, 0x00000003); + CHECK(r == WAIT); + + actual = d->view(0, 1)[0]; + REQUIRE(expected == actual); + d->resolve(); + } + + r = d->write_line(FETCH, written_line, 0x00000001); + actual = d->view(0, 1)[0]; + CHECK(r == OK); + r = d->write_line(MEM, written_line, 0x00000003); + CHECK(r == WAIT); + + expected = written_line; + actual = d->view(0, 1)[0]; + REQUIRE(expected == actual); + + delete d; +} + +TEST_CASE("Construct singleton dram, write a line to an address in 0 cycles, read in 0 cycles", "[dram]") +{ + Dram *d = new Dram(1, 0); + std::array<signed int, LINE_SIZE> expected = {0, 0, 0, 0}; + std::array<signed int, LINE_SIZE> actual = d->view(0, 1)[0]; + CHECK(expected == actual); + + signed int w = 0x11223311; + expected = {w, w+1, w+2, w+3}; + int addr = 0x00000000; + d->write_line(MEM, expected, addr); + + Response r = d->read_line(MEM, 0x00000000, actual); + CHECK(r == OK); + REQUIRE(expected == actual); + + r = d->read_line(MEM, 0x00000001, actual); + CHECK(r == OK); + REQUIRE(expected == actual); + + r = d->read_line(MEM, 0x00000002, actual); + CHECK(r == OK); + REQUIRE(expected == actual); + + r = d->read_line(MEM, 0x00000003, actual); + CHECK(r == OK); + REQUIRE(expected == actual); + + delete d; +} + +TEST_CASE("Construct singleton dram, write a line to an address in three cycles, read it in three cycles", "[dram]") +{ + int delay = 3; + Dram *d = new Dram(1, delay); + std::array<signed int, LINE_SIZE> expected = {0, 0, 0, 0}; + std::array<signed int, LINE_SIZE> actual = d->view(0, 1)[0]; + CHECK(expected == actual); + + signed int w = 0x11223311; + expected = {w, w+1, w+2, w+3}; + int addr = 0x00000000; + + int i; + Response r; + + for(i=0; i<delay; ++i) { + r = d->write_line(MEM, expected, addr); + d->resolve(); + } + r = d->write_line(MEM, expected, addr); + d->resolve(); + + for (i = 0; i < delay; ++i) { + r = d->read_line(MEM, 0x00000000, actual); + CHECK(r == WAIT); + REQUIRE(expected != actual); + d->resolve(); + } + + r = d->read_line(MEM, 0x00000000, actual); + CHECK(r == OK); + d->resolve(); + REQUIRE(expected == actual); + delete d; +} + +TEST_CASE( + "Construct singleton dram, store line in 3 cycles, read line in 3 cycles with no conflict","[dram]") +{ + int delay = 3; + Dram *d = new Dram(1, delay); + std::array<signed int, LINE_SIZE> expected = {0, 0, 0, 0}; + std::array<signed int, LINE_SIZE> actual = d->view(0, 1)[0]; + CHECK(expected == actual); + + signed int w = 0x11223311; + expected = {w, w+1, w+2, w+3}; + int addr = 0x00000000; + + int i; + Response r; + for(int j=0; j<delay; ++j) { + r = d->write_line(MEM, expected, addr); + d->resolve(); + } + r = d->write_line(MEM, expected, addr++); + d->resolve(); + + for (i = 0; i < delay; ++i) { + r = d->read_line(MEM, 0x00000000, actual); + CHECK(r == WAIT); + REQUIRE(expected != actual); + d->resolve(); + } + + r = d->read_line(MEM, 0x00000000, actual); + REQUIRE(r == OK); + r = d->read_line(FETCH, 0x00000003, actual); + CHECK(r == WAIT); + d->resolve(); + REQUIRE(expected == actual); + + actual = {0,0,0,0}; + for (i = 0; i < delay; ++i) { + r = d->read_line(FETCH, 0x00000000, actual); + CHECK(r == WAIT); + REQUIRE(expected != actual); + d->resolve(); + } + + r = d->read_line(FETCH, 0x00000000, actual); + REQUIRE(r == OK); + r = d->read_line(MEM, 0x00000002, actual); + CHECK(r == WAIT); + d->resolve(); + REQUIRE(expected == actual); + + delete d; + +} + +TEST_CASE( + "Construct singleton dram, store line in 3 cycles, read line in 3 cycles with much conflict","[dram]") +{ + int delay = 3; + Dram *d = new Dram(1, delay); + std::array<signed int, LINE_SIZE> expected = {0, 0, 0, 0}; + std::array<signed int, LINE_SIZE> actual = d->view(0, 1)[0]; + CHECK(expected == actual); + + signed int w = 0x11223311; + expected = {w, w+1, w+2, w+3}; + int addr = 0x00000000; + + int i; + Response r; + for(int j=0; j<delay; ++j) { + r = d->write_line(MEM, expected, addr); + d->resolve(); + } + r = d->write_line(MEM, expected, addr++); + d->resolve(); + + + for (i = 0; i < delay; ++i) { + r = d->read_line(MEM, 0x00000000, actual); + CHECK(r == WAIT); + REQUIRE(expected != actual); + r = d->read_line(FETCH, 0x00000002, actual); + CHECK(r == WAIT); + REQUIRE(expected != actual); + d->resolve(); + } + + r = d->read_line(MEM, 0x00000000, actual); + REQUIRE(r == OK); + r = d->read_line(FETCH, 0x00000003, actual); + CHECK(r == WAIT); + d->resolve(); + REQUIRE(expected == actual); + + actual = {0,0,0,0}; + for (i = 0; i < delay; ++i) { + r = d->read_line(FETCH, 0x00000000, actual); + CHECK(r == WAIT); + REQUIRE(expected != actual); + r = d->read_line(MEM, 0x00000002, actual); + CHECK(r == WAIT); + REQUIRE(expected != actual); + d->resolve(); + } + + r = d->read_line(FETCH, 0x00000000, actual); + REQUIRE(r == OK); + r = d->read_line(MEM, 0x00000002, actual); + CHECK(r == WAIT); + d->resolve(); + REQUIRE(expected == actual); + + delete d; + +} + + +TEST_CASE("Construct singleton dram, write a line to an address one element at a time, read it in zero cycles", "[dram]") { Dram *d = new Dram(1, 0); std::array<signed int, LINE_SIZE> expected = {0, 0, 0, 0}; @@ -196,31 +561,31 @@ TEST_CASE("Construct singleton dram, write a line to an address, read it in zero signed int w = 0x11223311; int addr = 0x00000000; for(int i=0; i<LINE_SIZE; ++i) { - Response r = d->write(MEM, w, addr++); + Response r = d->write_word(MEM, w, addr++); CHECK(r == OK); expected.at(i) = w++; } - Response r = d->read(MEM, 0x00000000, actual); + Response r = d->read_line(MEM, 0x00000000, actual); CHECK(r == OK); REQUIRE(expected == actual); - r = d->read(MEM, 0x00000001, actual); + r = d->read_line(MEM, 0x00000001, actual); CHECK(r == OK); REQUIRE(expected == actual); - r = d->read(MEM, 0x00000002, actual); + r = d->read_line(MEM, 0x00000002, actual); CHECK(r == OK); REQUIRE(expected == actual); - r = d->read(MEM, 0x00000003, actual); + r = d->read_line(MEM, 0x00000003, actual); CHECK(r == OK); REQUIRE(expected == actual); delete d; } -TEST_CASE("Construct singleton dram, write a line to an address in 12 cycles, read it in three cycles", "[dram]") +TEST_CASE("Construct singleton dram, write a line to an address one element at a time in 12 cycles, read it in three cycles", "[dram]") { int delay = 3; Dram *d = new Dram(1, delay); @@ -234,22 +599,22 @@ TEST_CASE("Construct singleton dram, write a line to an address in 12 cycles, re Response r; for(i=0; i<LINE_SIZE; ++i) { for(int j=0; j<delay; ++j) { - r = d->write(MEM, w, addr); + r = d->write_word(MEM, w, addr); d->resolve(); } - r = d->write(MEM, w, addr++); + r = d->write_word(MEM, w, addr++); d->resolve(); expected.at(i) = w++; } for (i = 0; i < delay; ++i) { - r = d->read(MEM, 0x00000000, actual); + r = d->read_line(MEM, 0x00000000, actual); CHECK(r == WAIT); REQUIRE(expected != actual); d->resolve(); } - r = d->read(MEM, 0x00000000, actual); + r = d->read_line(MEM, 0x00000000, actual); CHECK(r == OK); d->resolve(); REQUIRE(expected == actual); @@ -257,7 +622,7 @@ TEST_CASE("Construct singleton dram, write a line to an address in 12 cycles, re } TEST_CASE( - "Construct singleton dram, store line in 12 cycles, read line in 3 cycles with no conflict","[dram]") + "Construct singleton dram, store line one element at a time in 12 cycles, read line in 3 cycles with no conflict","[dram]") { int delay = 3; Dram *d = new Dram(1, delay); @@ -271,39 +636,39 @@ TEST_CASE( Response r; for(i=0; i<LINE_SIZE; ++i) { for(int j=0; j<delay; ++j) { - r = d->write(MEM, w, addr); + r = d->write_word(MEM, w, addr); d->resolve(); } - r = d->write(MEM, w, addr++); + r = d->write_word(MEM, w, addr++); d->resolve(); expected.at(i) = w++; } for (i = 0; i < delay; ++i) { - r = d->read(MEM, 0x00000000, actual); + r = d->read_line(MEM, 0x00000000, actual); CHECK(r == WAIT); REQUIRE(expected != actual); d->resolve(); } - r = d->read(MEM, 0x00000000, actual); + r = d->read_line(MEM, 0x00000000, actual); REQUIRE(r == OK); - r = d->read(FETCH, 0x00000003, actual); + r = d->read_line(FETCH, 0x00000003, actual); CHECK(r == WAIT); d->resolve(); REQUIRE(expected == actual); actual = {0,0,0,0}; for (i = 0; i < delay; ++i) { - r = d->read(FETCH, 0x00000000, actual); + r = d->read_line(FETCH, 0x00000000, actual); CHECK(r == WAIT); REQUIRE(expected != actual); d->resolve(); } - r = d->read(FETCH, 0x00000000, actual); + r = d->read_line(FETCH, 0x00000000, actual); REQUIRE(r == OK); - r = d->read(MEM, 0x00000002, actual); + r = d->read_line(MEM, 0x00000002, actual); CHECK(r == WAIT); d->resolve(); REQUIRE(expected == actual); @@ -313,7 +678,7 @@ TEST_CASE( } TEST_CASE( - "Construct singleton dram, store line in 12 cycles, read line in 3 cycles with much conflict","[dram]") + "Construct singleton dram, store line one element at a time in 12 cycles, read line in 3 cycles with much conflict","[dram]") { int delay = 3; Dram *d = new Dram(1, delay); @@ -327,45 +692,45 @@ TEST_CASE( Response r; for(i=0; i<LINE_SIZE; ++i) { for(int j=0; j<delay; ++j) { - r = d->write(MEM, w, addr); + r = d->write_word(MEM, w, addr); d->resolve(); } - r = d->write(MEM, w, addr++); + r = d->write_word(MEM, w, addr++); d->resolve(); expected.at(i) = w++; } for (i = 0; i < delay; ++i) { - r = d->read(MEM, 0x00000000, actual); + r = d->read_line(MEM, 0x00000000, actual); CHECK(r == WAIT); REQUIRE(expected != actual); - r = d->read(FETCH, 0x00000002, actual); + r = d->read_line(FETCH, 0x00000002, actual); CHECK(r == WAIT); REQUIRE(expected != actual); d->resolve(); } - r = d->read(MEM, 0x00000000, actual); + r = d->read_line(MEM, 0x00000000, actual); REQUIRE(r == OK); - r = d->read(FETCH, 0x00000003, actual); + r = d->read_line(FETCH, 0x00000003, actual); CHECK(r == WAIT); d->resolve(); REQUIRE(expected == actual); actual = {0,0,0,0}; for (i = 0; i < delay; ++i) { - r = d->read(FETCH, 0x00000000, actual); + r = d->read_line(FETCH, 0x00000000, actual); CHECK(r == WAIT); REQUIRE(expected != actual); - r = d->read(MEM, 0x00000002, actual); + r = d->read_line(MEM, 0x00000002, actual); CHECK(r == WAIT); REQUIRE(expected != actual); d->resolve(); } - r = d->read(FETCH, 0x00000000, actual); + r = d->read_line(FETCH, 0x00000000, actual); REQUIRE(r == OK); - r = d->read(MEM, 0x00000002, actual); + r = d->read_line(MEM, 0x00000002, actual); CHECK(r == WAIT); d->resolve(); REQUIRE(expected == actual); @@ -388,7 +753,7 @@ TEST_CASE("Sidedoor bypasses delay", "[dram]") int i; Response r; for (i = 0; i < delay - 1; ++i) { - r = d->write(MEM, w, 0x00000000); + r = d->write_word(MEM, w, 0x00000000); CHECK(r == WAIT); actual = d->view(0, 1)[0]; @@ -396,12 +761,12 @@ TEST_CASE("Sidedoor bypasses delay", "[dram]") d->resolve(); } - r = d->write(MEM, w, 0x00000000); + r = d->write_word(MEM, w, 0x00000000); CHECK(r == WAIT); actual = d->view(0, 1)[0]; REQUIRE(expected == actual); - r = d->write(SIDE, w, 0x00000001); + r = d->write_word(SIDE, w, 0x00000001); actual = d->view(0, 1)[0]; CHECK(r == OK); |