linux-imx
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// SPDX-License-Identifier: GPL-2.02
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/*3
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* pci_syscall.c4
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*5
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* For architectures where we want to allow direct access6
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* to the PCI config stuff - it would probably be preferable7
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* on PCs too, but there people just do it by hand with the8
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* magic northbridge registers..3
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* For architectures where we want to allow direct access to the PCI config4
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* stuff - it would probably be preferable on PCs too, but there people5
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* just do it by hand with the magic northbridge registers.9
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*/10
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#include <linux/errno.h>12
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#include <linux/pci.h>13
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#include <linux/syscalls.h>14
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#include <linux/uaccess.h>15
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#include "pci.h"16
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SYSCALL_DEFINE5(pciconfig_read, unsigned long, bus, unsigned long, dfn,18
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unsigned long, off, unsigned long, len, void __user *, buf)