diff options
| author | Alex Marginean <alexm.osslist@gmail.com> | 2019-06-07 11:24:24 +0300 |
|---|---|---|
| committer | Simon Glass <sjg@chromium.org> | 2019-07-10 16:52:58 -0600 |
| commit | 21ebbafde8dbbc5903a302ba0c126ff2ac1423c8 (patch) | |
| tree | 7619308eb2da99597e30de33845f4df4288c5d54 /test/dm | |
| parent | 0b143d8ab2b84219552d652e46619360a38888d1 (diff) | |
test: dm: Add a test for PCI Enhanced Allocation
This test is built on top of the existing swap_case driver. It adds EA
capability structure support to swap_case and uses that to map BARs.
BAR1 works as it used to, swapping upper/lower case. BARs 2,4 map to a
couple of magic values.
Signed-off-by: Alex Marginean <alexm.osslist@gmail.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Tested-by: Bin Meng <bmeng.cn@gmail.com>
Diffstat (limited to 'test/dm')
| -rw-r--r-- | test/dm/pci.c | 49 |
1 files changed, 49 insertions, 0 deletions
diff --git a/test/dm/pci.c b/test/dm/pci.c index a1febd54b7f..c325f6600e7 100644 --- a/test/dm/pci.c +++ b/test/dm/pci.c @@ -245,3 +245,52 @@ static int dm_test_pci_cap(struct unit_test_state *uts) return 0; } DM_TEST(dm_test_pci_cap, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT); + +/* Test looking up BARs in EA capability structure */ +static int dm_test_pci_ea(struct unit_test_state *uts) +{ + struct udevice *bus, *swap; + void *bar; + int cap; + + /* + * use emulated device mapping function, we're not using real physical + * addresses in this test + */ + sandbox_set_enable_pci_map(true); + + ut_assertok(uclass_get_device_by_seq(UCLASS_PCI, 0, &bus)); + ut_assertok(dm_pci_bus_find_bdf(PCI_BDF(0, 0x01, 0), &swap)); + + /* look up PCI_CAP_ID_EA */ + cap = dm_pci_find_capability(swap, PCI_CAP_ID_EA); + ut_asserteq(PCI_CAP_ID_EA_OFFSET, cap); + + /* test swap case in BAR 1 */ + bar = dm_pci_map_bar(swap, PCI_BASE_ADDRESS_0, 0); + ut_assertnonnull(bar); + *(int *)bar = 2; /* swap upper/lower */ + + bar = dm_pci_map_bar(swap, PCI_BASE_ADDRESS_1, 0); + ut_assertnonnull(bar); + strcpy(bar, "ea TEST"); + unmap_sysmem(bar); + bar = dm_pci_map_bar(swap, PCI_BASE_ADDRESS_1, 0); + ut_assertnonnull(bar); + ut_asserteq_str("EA test", bar); + + /* test magic values in BARs2, 4; BAR 3 is n/a */ + bar = dm_pci_map_bar(swap, PCI_BASE_ADDRESS_2, 0); + ut_assertnonnull(bar); + ut_asserteq(PCI_EA_BAR2_MAGIC, *(u32 *)bar); + + bar = dm_pci_map_bar(swap, PCI_BASE_ADDRESS_3, 0); + ut_assertnull(bar); + + bar = dm_pci_map_bar(swap, PCI_BASE_ADDRESS_4, 0); + ut_assertnonnull(bar); + ut_asserteq(PCI_EA_BAR4_MAGIC, *(u32 *)bar); + + return 0; +} +DM_TEST(dm_test_pci_ea, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT); |