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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-08-07 13:17:46 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-08-07 13:17:46 +0000
commit7f3a4257159dea8e7ef66d1a539dc6df708b8ed3 (patch)
treebcc69b5f4609f348fac49e2f59e210b29eaea783 /drivers/pci/endpoint/pci-epf-core.c
parentAdding upstream version 6.9.12. (diff)
downloadlinux-7f3a4257159dea8e7ef66d1a539dc6df708b8ed3.tar.xz
linux-7f3a4257159dea8e7ef66d1a539dc6df708b8ed3.zip
Adding upstream version 6.10.3.upstream/6.10.3
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'drivers/pci/endpoint/pci-epf-core.c')
-rw-r--r--drivers/pci/endpoint/pci-epf-core.c9
1 files changed, 6 insertions, 3 deletions
diff --git a/drivers/pci/endpoint/pci-epf-core.c b/drivers/pci/endpoint/pci-epf-core.c
index 0a28a0b091..323f2a60ab 100644
--- a/drivers/pci/endpoint/pci-epf-core.c
+++ b/drivers/pci/endpoint/pci-epf-core.c
@@ -255,6 +255,8 @@ EXPORT_SYMBOL_GPL(pci_epf_free_space);
* @type: Identifies if the allocation is for primary EPC or secondary EPC
*
* Invoke to allocate memory for the PCI EPF register space.
+ * Flag PCI_BASE_ADDRESS_MEM_TYPE_64 will automatically get set if the BAR
+ * can only be a 64-bit BAR, or if the requested size is larger than 2 GB.
*/
void *pci_epf_alloc_space(struct pci_epf *epf, size_t size, enum pci_barno bar,
const struct pci_epc_features *epc_features,
@@ -304,9 +306,10 @@ void *pci_epf_alloc_space(struct pci_epf *epf, size_t size, enum pci_barno bar,
epf_bar[bar].addr = space;
epf_bar[bar].size = size;
epf_bar[bar].barno = bar;
- epf_bar[bar].flags |= upper_32_bits(size) ?
- PCI_BASE_ADDRESS_MEM_TYPE_64 :
- PCI_BASE_ADDRESS_MEM_TYPE_32;
+ if (upper_32_bits(size) || epc_features->bar[bar].only_64bit)
+ epf_bar[bar].flags |= PCI_BASE_ADDRESS_MEM_TYPE_64;
+ else
+ epf_bar[bar].flags |= PCI_BASE_ADDRESS_MEM_TYPE_32;
return space;
}