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PCI: endpoint: Rename 'epf_bar::aligned_size' to 'epf_bar:mem_size'

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Rename the member 'epf_bar::aligned_size' to 'epf_bar::mem_size' to better
reflect its purpose. 'aligned_size' was misleading, as it actually
represents the backing memory size allocated for the BAR rather than the
aligned size.

Signed-off-by: Frank Li <Frank.Li@nxp.com>
Signed-off-by: Manivannan Sadhasivam <mani@kernel.org>
Reviewed-by: Niklas Cassel <cassel@kernel.org>
Link: https://patch.msgid.link/20251015-vntb_msi_doorbell-v6-1-9230298b1910@nxp.com
This commit is contained in:
Frank Li 2025-10-15 11:27:28 -04:00 committed by Manivannan Sadhasivam
parent 25423cda14
commit 483768846d
2 changed files with 9 additions and 9 deletions
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12
drivers/pci/endpoint/pci-epf-core.c
View File

@ -236,13 +236,13 @@ void pci_epf_free_space(struct pci_epf *epf, void *addr, enum pci_barno bar,
}
dev = epc->dev.parent;
dma_free_coherent(dev, epf_bar[bar].aligned_size, addr,
dma_free_coherent(dev, epf_bar[bar].mem_size, addr,
epf_bar[bar].phys_addr);
epf_bar[bar].phys_addr = 0;
epf_bar[bar].addr = NULL;
epf_bar[bar].size = 0;
epf_bar[bar].aligned_size = 0;
epf_bar[bar].mem_size = 0;
epf_bar[bar].barno = 0;
epf_bar[bar].flags = 0;
}
@ -265,7 +265,7 @@ void *pci_epf_alloc_space(struct pci_epf *epf, size_t size, enum pci_barno bar,
enum pci_epc_interface_type type)
{
u64 bar_fixed_size = epc_features->bar[bar].fixed_size;
size_t aligned_size, align = epc_features->align;
size_t mem_size, align = epc_features->align;
struct pci_epf_bar *epf_bar;
dma_addr_t phys_addr;
struct pci_epc *epc;
@ -297,7 +297,7 @@ void *pci_epf_alloc_space(struct pci_epf *epf, size_t size, enum pci_barno bar,
* it might be different if, for example, the fixed size of a BAR
* is smaller than align.
*/
aligned_size = align ? ALIGN(size, align) : size;
mem_size = align ? ALIGN(size, align) : size;
if (type == PRIMARY_INTERFACE) {
epc = epf->epc;
@ -308,7 +308,7 @@ void *pci_epf_alloc_space(struct pci_epf *epf, size_t size, enum pci_barno bar,
}
dev = epc->dev.parent;
space = dma_alloc_coherent(dev, aligned_size, &phys_addr, GFP_KERNEL);
space = dma_alloc_coherent(dev, mem_size, &phys_addr, GFP_KERNEL);
if (!space) {
dev_err(dev, "failed to allocate mem space\n");
return NULL;
@ -317,7 +317,7 @@ void *pci_epf_alloc_space(struct pci_epf *epf, size_t size, enum pci_barno bar,
epf_bar[bar].phys_addr = phys_addr;
epf_bar[bar].addr = space;
epf_bar[bar].size = size;
epf_bar[bar].aligned_size = aligned_size;
epf_bar[bar].mem_size = mem_size;
epf_bar[bar].barno = bar;
if (upper_32_bits(size) || epc_features->bar[bar].only_64bit)
epf_bar[bar].flags |= PCI_BASE_ADDRESS_MEM_TYPE_64;

6
include/linux/pci-epf.h
View File

@ -115,8 +115,8 @@ struct pci_epf_driver {
* @phys_addr: physical address that should be mapped to the BAR
* @addr: virtual address corresponding to the @phys_addr
* @size: the size of the address space present in BAR
* @aligned_size: the size actually allocated to accommodate the iATU alignment
* requirement
* @mem_size: the size actually allocated to accommodate the iATU alignment
* requirement
* @barno: BAR number
* @flags: flags that are set for the BAR
*/
@ -124,7 +124,7 @@ struct pci_epf_bar {
dma_addr_t phys_addr;
void *addr;
size_t size;
size_t aligned_size;
size_t mem_size;
enum pci_barno barno;
int flags;
};