Chipset

Chipset — Feature macros and chipset helpers

Functions

struct pci_device * intel_get_pci_device ()
uint32_t intel_get_drm_devid ()
const struct intel_device_info * intel_get_device_info ()
unsigned intel_gen ()
unsigned intel_gt ()
void intel_check_pch ()
#define IS_915G()
#define IS_915GM()
#define IS_915()
#define IS_945G()
#define IS_945GM()
#define IS_945()
#define IS_PINEVIEW()
#define IS_G33()
#define IS_BROADWATER()
#define IS_CRESTLINE()
#define IS_GM45()
#define IS_G45()
#define IS_G4X()
#define IS_IRONLAKE()
#define IS_ARRANDALE()
#define IS_SANDYBRIDGE()
#define IS_IVYBRIDGE()
#define IS_VALLEYVIEW()
#define IS_HASWELL()
#define IS_BROADWELL()
#define IS_CHERRYVIEW()
#define IS_KABYLAKE()
#define IS_SKYLAKE()
#define IS_BROXTON()
#define IS_GEMINILAKE()
#define IS_COFFEELAKE()
#define IS_CANNONLAKE()
#define IS_GEN()
#define AT_LEAST_GEN()
#define IS_GEN2()
#define IS_GEN3()
#define IS_GEN4()
#define IS_GEN5()
#define IS_GEN6()
#define IS_GEN7()
#define IS_GEN8()
#define IS_GEN9()
#define IS_GEN10()
#define IS_MOBILE()
#define IS_965()
#define HAS_BSD_RING()
#define HAS_BLT_RING()
#define HAS_PCH_SPLIT()

Types and Values

struct intel_device_info
enum pch_type
#define HAS_IBX
#define HAS_CPT
#define HAS_LPT

Includes

#include <igt.h>

Description

This library mostly provides feature macros which use raw pci device ids. It also provides a few more helper functions to handle pci devices, chipset detection and related issues.

Functions

intel_get_pci_device ()

struct pci_device *
intel_get_pci_device (void);

Looks up the main graphics pci device using libpciaccess.

Returns

The pci_device, exits the program on any failures.


intel_get_drm_devid ()

uint32_t
intel_get_drm_devid (int fd);

Queries the kernel for the pci device id corresponding to the drm file descriptor.

Parameters

fd

open i915 drm file descriptor

 

Returns

The devid, exits the program on any failures.


intel_get_device_info ()

const struct intel_device_info *
intel_get_device_info (uint16_t devid);

Looks up the Intel GFX device info for the given device id.

Parameters

devid

pci device id

 

Returns

The associated intel_get_device_info


intel_gen ()

unsigned
intel_gen (uint16_t devid);

Computes the Intel GFX generation for the given device id.

Parameters

devid

pci device id

 

Returns

The GFX generation on successful lookup, 0 on failure.


intel_gt ()

unsigned
intel_gt (uint16_t devid);

Computes the Intel GFX GT size for the given device id.

Parameters

devid

pci device id

 

Returns

The GT size.


intel_check_pch ()

void
intel_check_pch (void);

Detects the PCH chipset type of the running systems and fills in the results into the global intel_pch variable.


IS_915G()

#define IS_915G(devid)		(intel_get_device_info(devid)->is_grantsdale)

IS_915GM()

#define IS_915GM(devid)		(intel_get_device_info(devid)->is_alviso)

IS_915()

#define IS_915(devid)		(IS_915G(devid) || IS_915GM(devid))

IS_945G()

#define IS_945G(devid)		(intel_get_device_info(devid)->is_lakeport)

IS_945GM()

#define IS_945GM(devid)		(intel_get_device_info(devid)->is_calistoga)

IS_945()

#define             IS_945(devid)

IS_PINEVIEW()

#define IS_PINEVIEW(devid) (intel_get_device_info(devid)->is_pineview)

IS_G33()

#define             IS_G33(devid)

IS_BROADWATER()

#define IS_BROADWATER(devid) (intel_get_device_info(devid)->is_broadwater)

IS_CRESTLINE()

#define IS_CRESTLINE(devid) (intel_get_device_info(devid)->is_crestline)

IS_GM45()

#define IS_GM45(devid)		(intel_get_device_info(devid)->is_cantiga)

IS_G45()

#define IS_G45(devid)		(intel_get_device_info(devid)->is_eaglelake)

IS_G4X()

#define IS_G4X(devid)		(IS_G45(devid) || IS_GM45(devid))

IS_IRONLAKE()

#define IS_IRONLAKE(devid) (intel_get_device_info(devid)->is_ironlake)

IS_ARRANDALE()

#define IS_ARRANDALE(devid) (intel_get_device_info(devid)->is_arrandale)

IS_SANDYBRIDGE()

#define IS_SANDYBRIDGE(devid) (intel_get_device_info(devid)->is_sandybridge)

IS_IVYBRIDGE()

#define IS_IVYBRIDGE(devid) (intel_get_device_info(devid)->is_ivybridge)

IS_VALLEYVIEW()

#define IS_VALLEYVIEW(devid) (intel_get_device_info(devid)->is_valleyview)

IS_HASWELL()

#define IS_HASWELL(devid) (intel_get_device_info(devid)->is_haswell)

IS_BROADWELL()

#define IS_BROADWELL(devid) (intel_get_device_info(devid)->is_broadwell)

IS_CHERRYVIEW()

#define IS_CHERRYVIEW(devid) (intel_get_device_info(devid)->is_cherryview)

IS_KABYLAKE()

#define IS_KABYLAKE(devid) (intel_get_device_info(devid)->is_kabylake)

IS_SKYLAKE()

#define IS_SKYLAKE(devid) (intel_get_device_info(devid)->is_skylake)

IS_BROXTON()

#define IS_BROXTON(devid) (intel_get_device_info(devid)->is_broxton)

IS_GEMINILAKE()

#define IS_GEMINILAKE(devid) (intel_get_device_info(devid)->is_geminilake)

IS_COFFEELAKE()

#define IS_COFFEELAKE(devid) (intel_get_device_info(devid)->is_coffeelake)

IS_CANNONLAKE()

#define IS_CANNONLAKE(devid) (intel_get_device_info(devid)->is_cannonlake)

IS_GEN()

#define IS_GEN(devid, x) (intel_get_device_info(devid)->gen & (1u << ((x)-1)))

AT_LEAST_GEN()

#define AT_LEAST_GEN(devid, x) (intel_get_device_info(devid)->gen & -(1u << ((x)-1)))

IS_GEN2()

#define IS_GEN2(devid)		IS_GEN(devid, 2)

IS_GEN3()

#define IS_GEN3(devid)		IS_GEN(devid, 3)

IS_GEN4()

#define IS_GEN4(devid)		IS_GEN(devid, 4)

IS_GEN5()

#define IS_GEN5(devid)		IS_GEN(devid, 5)

IS_GEN6()

#define IS_GEN6(devid)		IS_GEN(devid, 6)

IS_GEN7()

#define IS_GEN7(devid)		IS_GEN(devid, 7)

IS_GEN8()

#define IS_GEN8(devid)		IS_GEN(devid, 8)

IS_GEN9()

#define IS_GEN9(devid)		IS_GEN(devid, 9)

IS_GEN10()

#define IS_GEN10(devid)		IS_GEN(devid, 10)

IS_MOBILE()

#define IS_MOBILE(devid) (intel_get_device_info(devid)->is_mobile)

IS_965()

#define IS_965(devid)		AT_LEAST_GEN(devid, 4)

HAS_BSD_RING()

#define HAS_BSD_RING(devid) AT_LEAST_GEN(devid, 5)

HAS_BLT_RING()

#define HAS_BLT_RING(devid) AT_LEAST_GEN(devid, 6)

HAS_PCH_SPLIT()

#define             HAS_PCH_SPLIT(devid)

Types and Values

struct intel_device_info

struct intel_device_info {
	unsigned gen;
	bool is_mobile : 1;
	bool is_whitney : 1;
	bool is_almador : 1;
	bool is_brookdale : 1;
	bool is_montara : 1;
	bool is_springdale : 1;
	bool is_grantsdale : 1;
	bool is_alviso : 1;
	bool is_lakeport : 1;
	bool is_calistoga : 1;
	bool is_bearlake : 1;
	bool is_pineview : 1;
	bool is_broadwater : 1;
	bool is_crestline : 1;
	bool is_eaglelake : 1;
	bool is_cantiga : 1;
	bool is_ironlake : 1;
	bool is_arrandale : 1;
	bool is_sandybridge : 1;
	bool is_ivybridge : 1;
	bool is_valleyview : 1;
	bool is_haswell : 1;
	bool is_broadwell : 1;
	bool is_cherryview : 1;
	bool is_skylake : 1;
	bool is_broxton : 1;
	bool is_kabylake : 1;
	bool is_geminilake : 1;
	bool is_coffeelake : 1;
	bool is_cannonlake : 1;
	const char *codename;
};

enum pch_type

Members

PCH_NONE

   

PCH_IBX

   

PCH_CPT

   

PCH_LPT

   

HAS_IBX

#define HAS_IBX (intel_pch == PCH_IBX)

HAS_CPT

#define HAS_CPT (intel_pch == PCH_CPT)

HAS_LPT

#define HAS_LPT (intel_pch == PCH_LPT)