e3f2baebf4
Allows us to dump PCI space before any kernel changes have been made. Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
22 lines
810 B
C
22 lines
810 B
C
#ifndef ASM_PCI_DIRECT_H
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#define ASM_PCI_DIRECT_H 1
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#include <linux/types.h>
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/* Direct PCI access. This is used for PCI accesses in early boot before
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the PCI subsystem works. */
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extern u32 read_pci_config(u8 bus, u8 slot, u8 func, u8 offset);
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extern u8 read_pci_config_byte(u8 bus, u8 slot, u8 func, u8 offset);
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extern u16 read_pci_config_16(u8 bus, u8 slot, u8 func, u8 offset);
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extern void write_pci_config(u8 bus, u8 slot, u8 func, u8 offset, u32 val);
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extern void write_pci_config_byte(u8 bus, u8 slot, u8 func, u8 offset, u8 val);
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extern void write_pci_config_16(u8 bus, u8 slot, u8 func, u8 offset, u16 val);
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extern int early_pci_allowed(void);
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extern unsigned int pci_early_dump_regs;
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extern void early_dump_pci_device(u8 bus, u8 slot, u8 func);
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extern void early_dump_pci_devices(void);
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#endif
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