Add support for clearing the BAR info during the deinitialization phase of
the epf test driver.
Signed-off-by: Vidya Sagar <vidyas@xxxxxxxxxx>
---
V2:
* This is a new patch in this series
drivers/pci/endpoint/functions/pci-epf-test.c | 30 +++++++++++++++++++
1 file changed, 30 insertions(+)
diff --git a/drivers/pci/endpoint/functions/pci-epf-test.c b/drivers/pci/endpoint/functions/pci-epf-test.c
index 136470019a24..25ac3d161fac 100644
--- a/drivers/pci/endpoint/functions/pci-epf-test.c
+++ b/drivers/pci/endpoint/functions/pci-epf-test.c
@@ -826,6 +826,35 @@ static int pci_epf_test_core_init(struct pci_epf *epf)
return 0;
}
+static int pci_epf_test_clear_bar(struct pci_epf *epf)
+{
+ int bar, add;
+ struct pci_epf_bar *epf_bar;
+ struct pci_epc *epc = epf->epc;
+ struct pci_epf_test *epf_test = epf_get_drvdata(epf);
+ const struct pci_epc_features *epc_features;
+
+ epc_features = epf_test->epc_features;
+
+ for (bar = 0; bar < PCI_STD_NUM_BARS; bar += add) {
+ epf_bar = &epf->bar[bar];
+ add = (epf_bar->flags & PCI_BASE_ADDRESS_MEM_TYPE_64) ? 2 : 1;
+
+ if (!!(epc_features->reserved_bar & (1 << bar)))
+ continue;
+
+ pci_epc_clear_bar(epc, epf->func_no, epf->vfunc_no, epf_bar);
+ }
+
+ return 0;
+}
+
+static int pci_epf_test_core_deinit(struct pci_epf *epf)
+{
+ pci_epf_test_clear_bar(epf);
+ return 0;
+}
+
int pci_epf_test_link_up(struct pci_epf *epf)
{
struct pci_epf_test *epf_test = epf_get_drvdata(epf);
@@ -839,6 +868,7 @@ int pci_epf_test_link_up(struct pci_epf *epf)
static const struct pci_epc_event_ops pci_epf_test_event_ops = {
.core_init = pci_epf_test_core_init,
.link_up = pci_epf_test_link_up,
+ .core_deinit = pci_epf_test_core_deinit,
};
static int pci_epf_test_alloc_space(struct pci_epf *epf)
--
2.17.1
