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path: root/drivers/pci/endpoint/functions/pci-epf-test.c
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Diffstat (limited to 'drivers/pci/endpoint/functions/pci-epf-test.c')
-rw-r--r--drivers/pci/endpoint/functions/pci-epf-test.c35
1 files changed, 20 insertions, 15 deletions
diff --git a/drivers/pci/endpoint/functions/pci-epf-test.c b/drivers/pci/endpoint/functions/pci-epf-test.c
index 27806987e93b..1cfe3687a211 100644
--- a/drivers/pci/endpoint/functions/pci-epf-test.c
+++ b/drivers/pci/endpoint/functions/pci-epf-test.c
@@ -381,15 +381,15 @@ static void pci_epf_test_unbind(struct pci_epf *epf)
epf_bar = &epf->bar[bar];
if (epf_test->reg[bar]) {
- pci_epf_free_space(epf, epf_test->reg[bar], bar);
pci_epc_clear_bar(epc, epf->func_no, epf_bar);
+ pci_epf_free_space(epf, epf_test->reg[bar], bar);
}
}
}
static int pci_epf_test_set_bar(struct pci_epf *epf)
{
- int bar;
+ int bar, add;
int ret;
struct pci_epf_bar *epf_bar;
struct pci_epc *epc = epf->epc;
@@ -400,8 +400,14 @@ static int pci_epf_test_set_bar(struct pci_epf *epf)
epc_features = epf_test->epc_features;
- for (bar = BAR_0; bar <= BAR_5; bar++) {
+ for (bar = BAR_0; bar <= BAR_5; bar += add) {
epf_bar = &epf->bar[bar];
+ /*
+ * pci_epc_set_bar() sets PCI_BASE_ADDRESS_MEM_TYPE_64
+ * if the specific implementation required a 64-bit BAR,
+ * even if we only requested a 32-bit BAR.
+ */
+ add = (epf_bar->flags & PCI_BASE_ADDRESS_MEM_TYPE_64) ? 2 : 1;
if (!!(epc_features->reserved_bar & (1 << bar)))
continue;
@@ -413,13 +419,6 @@ static int pci_epf_test_set_bar(struct pci_epf *epf)
if (bar == test_reg_bar)
return ret;
}
- /*
- * pci_epc_set_bar() sets PCI_BASE_ADDRESS_MEM_TYPE_64
- * if the specific implementation required a 64-bit BAR,
- * even if we only requested a 32-bit BAR.
- */
- if (epf_bar->flags & PCI_BASE_ADDRESS_MEM_TYPE_64)
- bar++;
}
return 0;
@@ -431,13 +430,19 @@ static int pci_epf_test_alloc_space(struct pci_epf *epf)
struct device *dev = &epf->dev;
struct pci_epf_bar *epf_bar;
void *base;
- int bar;
+ int bar, add;
enum pci_barno test_reg_bar = epf_test->test_reg_bar;
const struct pci_epc_features *epc_features;
+ size_t test_reg_size;
epc_features = epf_test->epc_features;
- base = pci_epf_alloc_space(epf, sizeof(struct pci_epf_test_reg),
+ if (epc_features->bar_fixed_size[test_reg_bar])
+ test_reg_size = bar_size[test_reg_bar];
+ else
+ test_reg_size = sizeof(struct pci_epf_test_reg);
+
+ base = pci_epf_alloc_space(epf, test_reg_size,
test_reg_bar, epc_features->align);
if (!base) {
dev_err(dev, "Failed to allocated register space\n");
@@ -445,8 +450,10 @@ static int pci_epf_test_alloc_space(struct pci_epf *epf)
}
epf_test->reg[test_reg_bar] = base;
- for (bar = BAR_0; bar <= BAR_5; bar++) {
+ for (bar = BAR_0; bar <= BAR_5; bar += add) {
epf_bar = &epf->bar[bar];
+ add = (epf_bar->flags & PCI_BASE_ADDRESS_MEM_TYPE_64) ? 2 : 1;
+
if (bar == test_reg_bar)
continue;
@@ -459,8 +466,6 @@ static int pci_epf_test_alloc_space(struct pci_epf *epf)
dev_err(dev, "Failed to allocate space for BAR%d\n",
bar);
epf_test->reg[bar] = base;
- if (epf_bar->flags & PCI_BASE_ADDRESS_MEM_TYPE_64)
- bar++;
}
return 0;