215  * @bar: the BAR number corresponding to the register space
220 void pci_epf_free_space(struct pci_epf *epf, void *addr, enum pci_barno bar,  in pci_epf_free_space()  argument
232 		epf_bar = epf->bar;  in pci_epf_free_space()
239 	dma_free_coherent(dev, epf_bar[bar].aligned_size, addr,  in pci_epf_free_space()
240 			  epf_bar[bar].phys_addr);  in pci_epf_free_space()
242 	epf_bar[bar].phys_addr = 0;  in pci_epf_free_space()
243 	epf_bar[bar].addr = NULL;  in pci_epf_free_space()
244 	epf_bar[bar].size = 0;  in pci_epf_free_space()
245 	epf_bar[bar].aligned_size = 0;  in pci_epf_free_space()
246 	epf_bar[bar].barno = 0;  in pci_epf_free_space()
247 	epf_bar[bar].flags = 0;  in pci_epf_free_space()
255  * @bar: the BAR number corresponding to the allocated register space
260  * Flag PCI_BASE_ADDRESS_MEM_TYPE_64 will automatically get set if the BAR
261  * can only be a 64-bit BAR, or if the requested size is larger than 2 GB.
263 void *pci_epf_alloc_space(struct pci_epf *epf, size_t size, enum pci_barno bar,  in pci_epf_alloc_space()  argument
267 	u64 bar_fixed_size = epc_features->bar[bar].fixed_size;  in pci_epf_alloc_space()
278 	/* According to PCIe base spec, min size for a resizable BAR is 1 MB. */  in pci_epf_alloc_space()
279 	if (epc_features->bar[bar].type == BAR_RESIZABLE && size < SZ_1M)  in pci_epf_alloc_space()
282 	if (epc_features->bar[bar].type == BAR_FIXED && bar_fixed_size) {  in pci_epf_alloc_space()
285 				"requested BAR size is larger than fixed size\n");  in pci_epf_alloc_space()
290 		/* BAR size must be power of two */  in pci_epf_alloc_space()
297 	 * it might be different if, for example, the fixed size of a BAR  in pci_epf_alloc_space()
304 		epf_bar = epf->bar;  in pci_epf_alloc_space()
317 	epf_bar[bar].phys_addr = phys_addr;  in pci_epf_alloc_space()
318 	epf_bar[bar].addr = space;  in pci_epf_alloc_space()
319 	epf_bar[bar].size = size;  in pci_epf_alloc_space()
320 	epf_bar[bar].aligned_size = aligned_size;  in pci_epf_alloc_space()
321 	epf_bar[bar].barno = bar;  in pci_epf_alloc_space()
322 	if (upper_32_bits(size) || epc_features->bar[bar].only_64bit)  in pci_epf_alloc_space()
323 		epf_bar[bar].flags |= PCI_BASE_ADDRESS_MEM_TYPE_64;  in pci_epf_alloc_space()
325 		epf_bar[bar].flags |= PCI_BASE_ADDRESS_MEM_TYPE_32;  in pci_epf_alloc_space()
481  * pci_epf_align_inbound_addr() - Align the given address based on the BAR
485  * @bar: the BAR number corresponding to the given addr
486  * @base: base address matching the @bar alignment requirement
489  * Helper function to align input @addr based on BAR's alignment requirement.
499 int pci_epf_align_inbound_addr(struct pci_epf *epf, enum pci_barno bar,  in pci_epf_align_inbound_addr()  argument
503 	 * Most EP controllers require the BAR start address to be aligned to  in pci_epf_align_inbound_addr()
504 	 * the BAR size, because they mask off the lower bits.  in pci_epf_align_inbound_addr()
506 	 * Alignment to BAR size also works for controllers that support  in pci_epf_align_inbound_addr()
509 	u64 align = epf->bar[bar].size;  in pci_epf_align_inbound_addr()