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Commit cc10385b authored by Wang Sheng-Hui's avatar Wang Sheng-Hui Committed by Bjorn Helgaas
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PCI: Move config space size macros to pci_regs.h 



Move PCI configuration space size macros (PCI_CFG_SPACE_SIZE and
PCI_CFG_SPACE_EXP_SIZE) from drivers/pci/pci.h to
include/uapi/linux/pci_regs.h so they can be used by more drivers and
eliminate duplicate definitions.

[bhelgaas: Expand comment to include PCI-X details]
Signed-off-by: default avatarWang Sheng-Hui <shhuiw@foxmail.com>
Signed-off-by: default avatarBjorn Helgaas <bhelgaas@google.com>
parent 1001354c

drivers/pci/pci.h

+0 −3
Original line number Diff line number Diff line 
#ifndef DRIVERS_PCI_H

#define DRIVERS_PCI_H



#define PCI_CFG_SPACE_SIZE	256

#define PCI_CFG_SPACE_EXP_SIZE	4096



#define PCI_FIND_CAP_TTL	48



extern const unsigned char pcie_link_speed[];

drivers/vfio/pci/vfio_pci_config.c

+0 −2
Original line number Diff line number Diff line
@@ -31,8 +31,6 @@ 


#include "vfio_pci_private.h"



#define PCI_CFG_SPACE_SIZE	256



/* Fake capability ID for standard config space */

#define PCI_CAP_ID_BASIC	0

include/uapi/linux/pci_regs.h

+8 −0
Original line number Diff line number Diff line
@@ -22,6 +22,14 @@ 
#ifndef LINUX_PCI_REGS_H

#define LINUX_PCI_REGS_H



/*

 * Conventional PCI and PCI-X Mode 1 devices have 256 bytes of

 * configuration space.  PCI-X Mode 2 and PCIe devices have 4096 bytes of

 * configuration space.

 */

#define PCI_CFG_SPACE_SIZE	256

#define PCI_CFG_SPACE_EXP_SIZE	4096



/*

 * Under PCI, each device has 256 bytes of configuration address space,

 * of which the first 64 bytes are standardized as follows: