eaw/u-boot
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

pci: Map bars with offset and length

Browse Source 
Evolve dm_pci_map_bar() to include an offset and length parameter. These
allow a portion of the memory to be mapped and range checks to be
applied.

Passing both the offset and length as zero results in the previous
behaviour and this is used to migrate the previous callers.

Signed-off-by: Andrew Scull <ascull@google.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
This commit is contained in:
Andrew Scull
2022-04-21 16:11:10 +00:00
committed by Tom Rini
parent 55e6adbd78
commit 12507a2d22
33 changed files with 67 additions and 55 deletions
Download Patch File Download Diff File Expand all files Collapse all files

12
test/dm/pci.c
View File

@@ -268,27 +268,27 @@ static int dm_test_pci_ea(struct unit_test_state *uts)
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);
bar = dm_pci_map_bar(swap, PCI_BASE_ADDRESS_0, 0, 0, 0);
ut_assertnonnull(bar);
*(int *)bar = 2; /* swap upper/lower */
bar = dm_pci_map_bar(swap, PCI_BASE_ADDRESS_1, 0);
bar = dm_pci_map_bar(swap, PCI_BASE_ADDRESS_1, 0, 0, 0);
ut_assertnonnull(bar);
strcpy(bar, "ea TEST");
unmap_sysmem(bar);
bar = dm_pci_map_bar(swap, PCI_BASE_ADDRESS_1, 0);
bar = dm_pci_map_bar(swap, PCI_BASE_ADDRESS_1, 0, 0, 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);
bar = dm_pci_map_bar(swap, PCI_BASE_ADDRESS_2, 0, 0, 0);
ut_assertnonnull(bar);
ut_asserteq(PCI_EA_BAR2_MAGIC, *(u32 *)bar);
bar = dm_pci_map_bar(swap, PCI_BASE_ADDRESS_3, 0);
bar = dm_pci_map_bar(swap, PCI_BASE_ADDRESS_3, 0, 0, 0);
ut_assertnull(bar);
bar = dm_pci_map_bar(swap, PCI_BASE_ADDRESS_4, 0);
bar = dm_pci_map_bar(swap, PCI_BASE_ADDRESS_4, 0, 0, 0);
ut_assertnonnull(bar);
ut_asserteq(PCI_EA_BAR4_MAGIC, *(u32 *)bar);