mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-28 04:25:09 +07:00
5b49c82dad
Add the pci related code for csky arch to support basic pci virtual function, such as qemu virt-pci-9pfs. Signed-off-by: MaJun <majun258@linux.alibaba.com> Signed-off-by: Guo Ren <guoren@linux.alibaba.com>
35 lines
680 B
C
35 lines
680 B
C
/* SPDX-License-Identifier: GPL-2.0-only */
|
|
|
|
#ifndef __ASM_CSKY_PCI_H
|
|
#define __ASM_CSKY_PCI_H
|
|
|
|
#include <linux/types.h>
|
|
#include <linux/slab.h>
|
|
#include <linux/dma-mapping.h>
|
|
|
|
#include <asm/io.h>
|
|
|
|
#define PCIBIOS_MIN_IO 0
|
|
#define PCIBIOS_MIN_MEM 0
|
|
|
|
/* C-SKY shim does not initialize PCI bus */
|
|
#define pcibios_assign_all_busses() 1
|
|
|
|
extern int isa_dma_bridge_buggy;
|
|
|
|
#ifdef CONFIG_PCI
|
|
static inline int pci_get_legacy_ide_irq(struct pci_dev *dev, int channel)
|
|
{
|
|
/* no legacy IRQ on csky */
|
|
return -ENODEV;
|
|
}
|
|
|
|
static inline int pci_proc_domain(struct pci_bus *bus)
|
|
{
|
|
/* always show the domain in /proc */
|
|
return 1;
|
|
}
|
|
#endif /* CONFIG_PCI */
|
|
|
|
#endif /* __ASM_CSKY_PCI_H */
|