mirrors/linux
2
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git synced 2026-07-22 03:27:30 -04:00
Code Issues Packages Projects Releases Wiki Activity

alpha/PCI: Add static PCI resource attribute macros

Browse Source 
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
This commit is contained in:
Krzysztof Wilczyński
2026-05-08 04:35:35 +00:00
committed by Bjorn Helgaas
parent 29840080f5
commit 5980dcbc4b
1 changed files with 20 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

20
arch/alpha/kernel/pci-sysfs.c
View File

@@ -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