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authorNiklas Cassel <cassel@kernel.org>2024-02-08 00:39:14 +0300
committerManivannan Sadhasivam <manivannan.sadhasivam@linaro.org>2024-02-09 11:50:19 +0300
commite891becdccaa9048b1ab91c08ad5722edd571806 (patch)
tree2d3d444689a1710c3a032fc0ed4e8ca514231146 /drivers/pci/endpoint
parentb91da7308171ac4ad2623d371f37288dafbb3bdc (diff)
downloadlinux-e891becdccaa9048b1ab91c08ad5722edd571806.tar.xz
PCI: endpoint: Refactor pci_epf_alloc_space() API
Refactor pci_epf_alloc_space() API to accept "epc_features" as a parameter. This is a preparatory work to make the API more robust. Reviewed-by: Frank Li <Frank.Li@nxp.com> Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> Signed-off-by: Niklas Cassel <cassel@kernel.org> Link: https://lore.kernel.org/r/20240207213922.1796533-2-cassel@kernel.org [mani: reworded commit message] Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Diffstat (limited to 'drivers/pci/endpoint')
-rw-r--r--drivers/pci/endpoint/functions/pci-epf-ntb.c2
-rw-r--r--drivers/pci/endpoint/functions/pci-epf-test.c5
-rw-r--r--drivers/pci/endpoint/functions/pci-epf-vntb.c4
-rw-r--r--drivers/pci/endpoint/pci-epf-core.c6
4 files changed, 9 insertions, 8 deletions
diff --git a/drivers/pci/endpoint/functions/pci-epf-ntb.c b/drivers/pci/endpoint/functions/pci-epf-ntb.c
index 0553946005c4..43cd309ce22f 100644
--- a/drivers/pci/endpoint/functions/pci-epf-ntb.c
+++ b/drivers/pci/endpoint/functions/pci-epf-ntb.c
@@ -1067,7 +1067,7 @@ static int epf_ntb_config_spad_bar_alloc(struct epf_ntb *ntb,
else if (size < ctrl_size + spad_size)
return -EINVAL;
- base = pci_epf_alloc_space(epf, size, barno, align, type);
+ base = pci_epf_alloc_space(epf, size, barno, epc_features, type);
if (!base) {
dev_err(dev, "%s intf: Config/Status/SPAD alloc region fail\n",
pci_epc_interface_string(type));
diff --git a/drivers/pci/endpoint/functions/pci-epf-test.c b/drivers/pci/endpoint/functions/pci-epf-test.c
index 18c80002d3bd..15bfa7d83489 100644
--- a/drivers/pci/endpoint/functions/pci-epf-test.c
+++ b/drivers/pci/endpoint/functions/pci-epf-test.c
@@ -848,7 +848,7 @@ static int pci_epf_test_alloc_space(struct pci_epf *epf)
}
base = pci_epf_alloc_space(epf, test_reg_size, test_reg_bar,
- epc_features->align, PRIMARY_INTERFACE);
+ epc_features, PRIMARY_INTERFACE);
if (!base) {
dev_err(dev, "Failed to allocated register space\n");
return -ENOMEM;
@@ -866,8 +866,7 @@ static int pci_epf_test_alloc_space(struct pci_epf *epf)
continue;
base = pci_epf_alloc_space(epf, bar_size[bar], bar,
- epc_features->align,
- PRIMARY_INTERFACE);
+ epc_features, PRIMARY_INTERFACE);
if (!base)
dev_err(dev, "Failed to allocate space for BAR%d\n",
bar);
diff --git a/drivers/pci/endpoint/functions/pci-epf-vntb.c b/drivers/pci/endpoint/functions/pci-epf-vntb.c
index e75a2af77328..ba509d67188b 100644
--- a/drivers/pci/endpoint/functions/pci-epf-vntb.c
+++ b/drivers/pci/endpoint/functions/pci-epf-vntb.c
@@ -446,7 +446,7 @@ static int epf_ntb_config_spad_bar_alloc(struct epf_ntb *ntb)
else if (size < ctrl_size + spad_size)
return -EINVAL;
- base = pci_epf_alloc_space(epf, size, barno, align, 0);
+ base = pci_epf_alloc_space(epf, size, barno, epc_features, 0);
if (!base) {
dev_err(dev, "Config/Status/SPAD alloc region fail\n");
return -ENOMEM;
@@ -550,7 +550,7 @@ static int epf_ntb_db_bar_init(struct epf_ntb *ntb)
barno = ntb->epf_ntb_bar[BAR_DB];
- mw_addr = pci_epf_alloc_space(ntb->epf, size, barno, align, 0);
+ mw_addr = pci_epf_alloc_space(ntb->epf, size, barno, epc_features, 0);
if (!mw_addr) {
dev_err(dev, "Failed to allocate OB address\n");
return -ENOMEM;
diff --git a/drivers/pci/endpoint/pci-epf-core.c b/drivers/pci/endpoint/pci-epf-core.c
index bf655383e5ed..9da9a1e9c086 100644
--- a/drivers/pci/endpoint/pci-epf-core.c
+++ b/drivers/pci/endpoint/pci-epf-core.c
@@ -251,14 +251,16 @@ EXPORT_SYMBOL_GPL(pci_epf_free_space);
* @epf: the EPF device to whom allocate the memory
* @size: the size of the memory that has to be allocated
* @bar: the BAR number corresponding to the allocated register space
- * @align: alignment size for the allocation region
+ * @epc_features: the features provided by the EPC specific to this EPF
* @type: Identifies if the allocation is for primary EPC or secondary EPC
*
* Invoke to allocate memory for the PCI EPF register space.
*/
void *pci_epf_alloc_space(struct pci_epf *epf, size_t size, enum pci_barno bar,
- size_t align, enum pci_epc_interface_type type)
+ const struct pci_epc_features *epc_features,
+ enum pci_epc_interface_type type)
{
+ size_t align = epc_features->align;
struct pci_epf_bar *epf_bar;
dma_addr_t phys_addr;
struct pci_epc *epc;