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e180c2b129
u-boot-brain/test/dm/pci.c
Simon Glass e180c2b129 dm: Rename DM test flags to make them more generic 
The test flags used by driver model are currently not available to other
tests. Rather than creating two sets of flags, make these flags generic
by changing the DM_ prefix to UT_ and moving them to the test.h header.

This will allow adding other test flags without confusion.

Signed-off-by: Simon Glass <sjg@chromium.org>
2020-08-07 22:31:32 -04:00

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// SPDX-License-Identifier: GPL-2.0+
/*
* Copyright (C) 2015 Google, Inc
*/
#include <common.h>
#include <dm.h>
#include <asm/io.h>
#include <asm/test.h>
#include <dm/test.h>
#include <test/test.h>
#include <test/ut.h>
/* Test that sandbox PCI works correctly */
static int dm_test_pci_base(struct unit_test_state *uts)
{
struct udevice *bus;
ut_assertok(uclass_get_device(UCLASS_PCI, 0, &bus));
return 0;
}
DM_TEST(dm_test_pci_base, UT_TESTF_SCAN_PDATA | UT_TESTF_SCAN_FDT);
/* Test that sandbox PCI bus numbering and device works correctly */
static int dm_test_pci_busdev(struct unit_test_state *uts)
{
struct udevice *bus;
struct udevice *swap;
u16 vendor, device;
/* Test bus#0 and its devices */
ut_assertok(uclass_get_device_by_seq(UCLASS_PCI, 0, &bus));
ut_assertok(dm_pci_bus_find_bdf(PCI_BDF(0, 0x00, 0), &swap));
vendor = 0;
ut_assertok(dm_pci_read_config16(swap, PCI_VENDOR_ID, &vendor));
ut_asserteq(SANDBOX_PCI_VENDOR_ID, vendor);
ut_assertok(dm_pci_bus_find_bdf(PCI_BDF(0, 0x1f, 0), &swap));
device = 0;
ut_assertok(dm_pci_read_config16(swap, PCI_DEVICE_ID, &device));
ut_asserteq(SANDBOX_PCI_SWAP_CASE_EMUL_ID, device);
/* Test bus#1 and its devices */
ut_assertok(uclass_get_device_by_seq(UCLASS_PCI, 1, &bus));
ut_assertok(dm_pci_bus_find_bdf(PCI_BDF(1, 0x08, 0), &swap));
vendor = 0;
ut_assertok(dm_pci_read_config16(swap, PCI_VENDOR_ID, &vendor));
ut_asserteq(SANDBOX_PCI_VENDOR_ID, vendor);
ut_assertok(dm_pci_bus_find_bdf(PCI_BDF(1, 0x0c, 0), &swap));
device = 0;
ut_assertok(dm_pci_read_config16(swap, PCI_DEVICE_ID, &device));
ut_asserteq(SANDBOX_PCI_SWAP_CASE_EMUL_ID, device);
return 0;
}
DM_TEST(dm_test_pci_busdev, UT_TESTF_SCAN_PDATA | UT_TESTF_SCAN_FDT);
/* Test that we can use the swapcase device correctly */
static int dm_test_pci_swapcase(struct unit_test_state *uts)
{
struct udevice *swap;
ulong io_addr, mem_addr;
char *ptr;
/* Check that asking for the device 0 automatically fires up PCI */
ut_assertok(dm_pci_bus_find_bdf(PCI_BDF(0, 0x00, 0), &swap));
/* First test I/O */
io_addr = dm_pci_read_bar32(swap, 0);
outb(2, io_addr);
ut_asserteq(2, inb(io_addr));
/*
* Now test memory mapping - note we must unmap and remap to cause
* the swapcase emulation to see our data and response.
*/
mem_addr = dm_pci_read_bar32(swap, 1);
ptr = map_sysmem(mem_addr, 20);
strcpy(ptr, "This is a TesT");
unmap_sysmem(ptr);
ptr = map_sysmem(mem_addr, 20);
ut_asserteq_str("tHIS IS A tESt", ptr);
unmap_sysmem(ptr);
/* Check that asking for the device 1 automatically fires up PCI */
ut_assertok(dm_pci_bus_find_bdf(PCI_BDF(0, 0x1f, 0), &swap));
/* First test I/O */
io_addr = dm_pci_read_bar32(swap, 0);
outb(2, io_addr);
ut_asserteq(2, inb(io_addr));
/*
* Now test memory mapping - note we must unmap and remap to cause
* the swapcase emulation to see our data and response.
*/
mem_addr = dm_pci_read_bar32(swap, 1);
ptr = map_sysmem(mem_addr, 20);
strcpy(ptr, "This is a TesT");
unmap_sysmem(ptr);
ptr = map_sysmem(mem_addr, 20);
ut_asserteq_str("tHIS IS A tESt", ptr);
unmap_sysmem(ptr);
return 0;
}
DM_TEST(dm_test_pci_swapcase, UT_TESTF_SCAN_PDATA | UT_TESTF_SCAN_FDT);
/* Test that we can dynamically bind the device driver correctly */
static int dm_test_pci_drvdata(struct unit_test_state *uts)
{
struct udevice *bus, *swap;
/* Check that asking for the device automatically fires up PCI */
ut_assertok(uclass_get_device_by_seq(UCLASS_PCI, 1, &bus));
ut_assertok(dm_pci_bus_find_bdf(PCI_BDF(1, 0x08, 0), &swap));
ut_asserteq(SWAP_CASE_DRV_DATA, swap->driver_data);
ut_assertok(dev_of_valid(swap));
ut_assertok(dm_pci_bus_find_bdf(PCI_BDF(1, 0x0c, 0), &swap));
ut_asserteq(SWAP_CASE_DRV_DATA, swap->driver_data);
ut_assertok(dev_of_valid(swap));
ut_assertok(dm_pci_bus_find_bdf(PCI_BDF(1, 0x10, 0), &swap));
ut_asserteq(SWAP_CASE_DRV_DATA, swap->driver_data);
ut_assertok(!dev_of_valid(swap));
return 0;
}
DM_TEST(dm_test_pci_drvdata, UT_TESTF_SCAN_PDATA | UT_TESTF_SCAN_FDT);
/* Test that devices on PCI bus#2 can be accessed correctly */
static int dm_test_pci_mixed(struct unit_test_state *uts)
{
/* PCI bus#2 has both statically and dynamic declared devices */
struct udevice *bus, *swap;
u16 vendor, device;
ulong io_addr, mem_addr;
char *ptr;
ut_assertok(uclass_get_device_by_seq(UCLASS_PCI, 2, &bus));
/* Test the dynamic device */
ut_assertok(dm_pci_bus_find_bdf(PCI_BDF(2, 0x08, 0), &swap));
vendor = 0;
ut_assertok(dm_pci_read_config16(swap, PCI_VENDOR_ID, &vendor));
ut_asserteq(SANDBOX_PCI_VENDOR_ID, vendor);
/* First test I/O */
io_addr = dm_pci_read_bar32(swap, 0);
outb(2, io_addr);
ut_asserteq(2, inb(io_addr));
/*
* Now test memory mapping - note we must unmap and remap to cause
* the swapcase emulation to see our data and response.
*/
mem_addr = dm_pci_read_bar32(swap, 1);
ptr = map_sysmem(mem_addr, 30);
strcpy(ptr, "This is a TesT oN dYNAMIc");
unmap_sysmem(ptr);
ptr = map_sysmem(mem_addr, 30);
ut_asserteq_str("tHIS IS A tESt On DynamiC", ptr);
unmap_sysmem(ptr);
/* Test the static device */
ut_assertok(dm_pci_bus_find_bdf(PCI_BDF(2, 0x1f, 0), &swap));
device = 0;
ut_assertok(dm_pci_read_config16(swap, PCI_DEVICE_ID, &device));
ut_asserteq(SANDBOX_PCI_SWAP_CASE_EMUL_ID, device);
/* First test I/O */
io_addr = dm_pci_read_bar32(swap, 0);
outb(2, io_addr);
ut_asserteq(2, inb(io_addr));
/*
* Now test memory mapping - note we must unmap and remap to cause
* the swapcase emulation to see our data and response.
*/
mem_addr = dm_pci_read_bar32(swap, 1);
ptr = map_sysmem(mem_addr, 30);
strcpy(ptr, "This is a TesT oN sTATIc");
unmap_sysmem(ptr);
ptr = map_sysmem(mem_addr, 30);
ut_asserteq_str("tHIS IS A tESt On StatiC", ptr);
unmap_sysmem(ptr);
return 0;
}
DM_TEST(dm_test_pci_mixed, UT_TESTF_SCAN_PDATA | UT_TESTF_SCAN_FDT);
/* Test looking up PCI capability and extended capability */
static int dm_test_pci_cap(struct unit_test_state *uts)
{
struct udevice *bus, *swap;
int cap;
ut_assertok(uclass_get_device_by_seq(UCLASS_PCI, 0, &bus));
ut_assertok(dm_pci_bus_find_bdf(PCI_BDF(0, 0x1f, 0), &swap));
/* look up PCI_CAP_ID_EXP */
cap = dm_pci_find_capability(swap, PCI_CAP_ID_EXP);
ut_asserteq(PCI_CAP_ID_EXP_OFFSET, cap);
/* look up PCI_CAP_ID_PCIX */
cap = dm_pci_find_capability(swap, PCI_CAP_ID_PCIX);
ut_asserteq(0, cap);
/* look up PCI_CAP_ID_MSIX starting from PCI_CAP_ID_PM_OFFSET */
cap = dm_pci_find_next_capability(swap, PCI_CAP_ID_PM_OFFSET,
PCI_CAP_ID_MSIX);
ut_asserteq(PCI_CAP_ID_MSIX_OFFSET, cap);
/* look up PCI_CAP_ID_VNDR starting from PCI_CAP_ID_EXP_OFFSET */
cap = dm_pci_find_next_capability(swap, PCI_CAP_ID_EXP_OFFSET,
PCI_CAP_ID_VNDR);
ut_asserteq(0, cap);
ut_assertok(uclass_get_device_by_seq(UCLASS_PCI, 1, &bus));
ut_assertok(dm_pci_bus_find_bdf(PCI_BDF(1, 0x08, 0), &swap));
/* look up PCI_EXT_CAP_ID_DSN */
cap = dm_pci_find_ext_capability(swap, PCI_EXT_CAP_ID_DSN);
ut_asserteq(PCI_EXT_CAP_ID_DSN_OFFSET, cap);
/* look up PCI_EXT_CAP_ID_SRIOV */
cap = dm_pci_find_ext_capability(swap, PCI_EXT_CAP_ID_SRIOV);
ut_asserteq(0, cap);
/* look up PCI_EXT_CAP_ID_DSN starting from PCI_EXT_CAP_ID_ERR_OFFSET */
cap = dm_pci_find_next_ext_capability(swap, PCI_EXT_CAP_ID_ERR_OFFSET,
PCI_EXT_CAP_ID_DSN);
ut_asserteq(PCI_EXT_CAP_ID_DSN_OFFSET, cap);
/* look up PCI_EXT_CAP_ID_RCRB starting from PCI_EXT_CAP_ID_VC_OFFSET */
cap = dm_pci_find_next_ext_capability(swap, PCI_EXT_CAP_ID_VC_OFFSET,
PCI_EXT_CAP_ID_RCRB);
ut_asserteq(0, cap);
return 0;
}
DM_TEST(dm_test_pci_cap, UT_TESTF_SCAN_PDATA | UT_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, UT_TESTF_SCAN_PDATA | UT_TESTF_SCAN_FDT);
/* Test the dev_read_addr_pci() function */
static int dm_test_pci_addr_flat(struct unit_test_state *uts)
{
struct udevice *swap1f, *swap1;
ulong io_addr, mem_addr;
ut_assertok(dm_pci_bus_find_bdf(PCI_BDF(0, 0x1f, 0), &swap1f));
io_addr = dm_pci_read_bar32(swap1f, 0);
ut_asserteq(io_addr, dev_read_addr_pci(swap1f));
/*
* This device has both I/O and MEM spaces but the MEM space appears
* first
*/
ut_assertok(dm_pci_bus_find_bdf(PCI_BDF(0, 0x1, 0), &swap1));
mem_addr = dm_pci_read_bar32(swap1, 1);
ut_asserteq(mem_addr, dev_read_addr_pci(swap1));
return 0;
}
DM_TEST(dm_test_pci_addr_flat, UT_TESTF_SCAN_PDATA | UT_TESTF_SCAN_FDT |
UT_TESTF_FLAT_TREE);
/*
* Test the dev_read_addr_pci() function with livetree. That function is
* not currently fully implemented, in that it fails to return the BAR address.
* Once that is implemented this test can be removed and dm_test_pci_addr_flat()
* can be used for both flattree and livetree by removing the UT_TESTF_FLAT_TREE
* flag above.
*/
static int dm_test_pci_addr_live(struct unit_test_state *uts)
{
struct udevice *swap1f, *swap1;
ut_assertok(dm_pci_bus_find_bdf(PCI_BDF(0, 0x1f, 0), &swap1f));
ut_asserteq(FDT_ADDR_T_NONE, dev_read_addr_pci(swap1f));
ut_assertok(dm_pci_bus_find_bdf(PCI_BDF(0, 0x1, 0), &swap1));
ut_asserteq(FDT_ADDR_T_NONE, dev_read_addr_pci(swap1));
return 0;
}
DM_TEST(dm_test_pci_addr_live, UT_TESTF_SCAN_PDATA | UT_TESTF_SCAN_FDT |
UT_TESTF_LIVE_TREE);
/* Test device_is_on_pci_bus() */
static int dm_test_pci_on_bus(struct unit_test_state *uts)
{
struct udevice *dev;
ut_assertok(dm_pci_bus_find_bdf(PCI_BDF(0, 0x1f, 0), &dev));
ut_asserteq(true, device_is_on_pci_bus(dev));
ut_asserteq(false, device_is_on_pci_bus(dev_get_parent(dev)));
ut_asserteq(true, device_is_on_pci_bus(dev));
return 0;
}
DM_TEST(dm_test_pci_on_bus, UT_TESTF_SCAN_PDATA | UT_TESTF_SCAN_FDT);
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