diff options
| author | Jiaxun Yang <jiaxun.yang@flygoat.com> | 2025-01-14 18:11:58 +0000 |
|---|---|---|
| committer | Thomas Bogendoerfer <tsbogend@alpha.franken.de> | 2025-01-20 20:39:23 +0100 |
| commit | df1b8d6e89db0edd572a1e375f5d3dd5575b9a9b (patch) | |
| tree | 5c672a25e5dfbb27c5f7e7df377a74a67a190fbb | |
| parent | a3c4afc0e081f8b6b5a744afb3f69c88288d218e (diff) | |
MIPS: pci-legacy: Override pci_address_to_pio
pci-legacy systems are not using logic_pio to managed PIO
allocations, thus the generic pci_address_to_pio won't work
when PCI_IOBASE is defined.
Override the function to use architecture implementation to
fix the problem.
Cc: stable@vger.kernel.org
Fixes: 4bfb53e7d317 ("mips: add <asm-generic/io.h> including")
Reported-by: Mateusz Jończyk <mat.jonczyk@o2.pl>
Closes: https://lore.kernel.org/r/99f75c66-4c2d-45dc-a808-b5ba440c7551@app.fastmail.com/
Signed-off-by: Jiaxun Yang <jiaxun.yang@flygoat.com>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
| -rw-r--r-- | arch/mips/pci/pci-legacy.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/arch/mips/pci/pci-legacy.c b/arch/mips/pci/pci-legacy.c index ec2567f8efd8..66898fd182dc 100644 --- a/arch/mips/pci/pci-legacy.c +++ b/arch/mips/pci/pci-legacy.c @@ -29,6 +29,14 @@ static LIST_HEAD(controllers); static int pci_initialized; +unsigned long pci_address_to_pio(phys_addr_t address) +{ + if (address > IO_SPACE_LIMIT) + return (unsigned long)-1; + + return (unsigned long) address; +} + /* * We need to avoid collisions with `mirrored' VGA ports * and other strange ISA hardware, so we always want the |