diff options
| author | Krzysztof Wilczyński <kwilczynski@kernel.org> | 2026-05-08 04:35:35 +0000 |
|---|---|---|
| committer | Bjorn Helgaas <bhelgaas@google.com> | 2026-06-23 15:19:09 -0500 |
| commit | 5980dcbc4b25e0164cfebc90c32bca7cff33d1c2 (patch) | |
| tree | fa7b0ca919d649a4619d06516b0d92adcd83f5f8 /arch/alpha/kernel | |
| parent | 29840080f5a68de131ae5bf89138d6ae11c591d8 (diff) | |
alpha/PCI: Add static PCI resource attribute macros
Add macros for declaring static binary attributes for Alpha's PCI resource
files:
- pci_dev_resource_attr(), for dense/BWX systems (mmap dense)
- pci_dev_resource_sparse_attr(), for sparse systems (mmap sparse)
- pci_dev_resource_dense_attr(), for dense companion files (mmap dense)
Each macro creates a const bin_attribute with the BAR index stored in the
.private property and the appropriate .mmap() callback.
Signed-off-by: Krzysztof Wilczyński <kwilczynski@kernel.org>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Tested-by: Magnus Lindholm <linmag7@gmail.com>
Tested-by: Shivaprasad G Bhat <sbhat@linux.ibm.com>
Acked-by: Magnus Lindholm <linmag7@gmail.com>
Link: https://patch.msgid.link/20260508043543.217179-17-kwilczynski@kernel.org
Diffstat (limited to 'arch/alpha/kernel')
| -rw-r--r-- | arch/alpha/kernel/pci-sysfs.c | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/arch/alpha/kernel/pci-sysfs.c b/arch/alpha/kernel/pci-sysfs.c index 6cf688621ea9..e1a4546ac2db 100644 --- a/arch/alpha/kernel/pci-sysfs.c +++ b/arch/alpha/kernel/pci-sysfs.c @@ -104,6 +104,26 @@ static int pci_mmap_resource_dense(struct file *filp, struct kobject *kobj, return pci_mmap_resource(kobj, attr, vma, 0); } +#define __pci_dev_resource_attr(_bar, _name, _suffix, _mmap) \ +static const struct bin_attribute \ +pci_dev_resource##_bar##_suffix##_attr = { \ + .attr = { .name = __stringify(_name), .mode = 0600 }, \ + .private = (void *)(unsigned long)(_bar), \ + .mmap = (_mmap), \ +} + +#define pci_dev_resource_attr(_bar) \ + __pci_dev_resource_attr(_bar, resource##_bar,, \ + pci_mmap_resource_dense) + +#define pci_dev_resource_sparse_attr(_bar) \ + __pci_dev_resource_attr(_bar, resource##_bar##_sparse, _sparse, \ + pci_mmap_resource_sparse) + +#define pci_dev_resource_dense_attr(_bar) \ + __pci_dev_resource_attr(_bar, resource##_bar##_dense, _dense, \ + pci_mmap_resource_dense) + /** * pci_remove_resource_files - cleanup resource files * @pdev: pci_dev to cleanup |