leandrof/linux
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

PCI: Add support for ACPI _RST reset method

Browse Source 
_RST is a standard ACPI method that performs a function level reset of a
device (ACPI v6.3, sec 7.3.25).

Add pci_dev_acpi_reset() to probe for _RST method and execute if present.
The default priority of this reset is set to below device-specific and
above hardware resets.

Suggested-by: Alex Williamson <alex.williamson@redhat.com>
Link: https://lore.kernel.org/r/20210817180500.1253-9-ameynarkhede03@gmail.com
Signed-off-by: Shanker Donthineni <sdonthineni@nvidia.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Sinan Kaya <okaya@kernel.org>
Reviewed-by: Alex Williamson <alex.williamson@redhat.com>
This commit is contained in:
Shanker Donthineni
2021-08-17 23:34:59 +05:30
committed by Bjorn Helgaas
parent 375553a932
commit 6937b7dd43
4 changed files with 31 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
include/linux/pci.h
View File

@@ -50,7 +50,7 @@
PCI_STATUS_PARITY)
/* Number of reset methods used in pci_reset_fn_methods array in pci.c */
#define PCI_NUM_RESET_METHODS 6
#define PCI_NUM_RESET_METHODS 7
/*
* The PCI interface treats multi-function devices as independent