[GitHub/mt8127/android_kernel_alcatel_ttab.git] / include / linux / i7300_idle.h


#ifndef I7300_IDLE_H
#define I7300_IDLE_H

#include <linux/pci.h>

/*
 * I/O AT controls (PCI bus 0 device 8 function 0)
 * DIMM controls (PCI bus 0 device 16 function 1)
 */
#define IOAT_BUS 0
#define IOAT_DEVFN PCI_DEVFN(8, 0)
#define MEMCTL_BUS 0
#define MEMCTL_DEVFN PCI_DEVFN(16, 1)

struct fbd_ioat {
	unsigned int vendor;
	unsigned int ioat_dev;
	unsigned int enabled;
};

/*
 * The i5000 chip-set has the same hooks as the i7300
 * but it is not enabled by default and must be manually
 * manually enabled with "forceload=1" because it is
 * only lightly validated.
 */

static const struct fbd_ioat fbd_ioat_list[] = {
	{PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_IOAT_CNB, 1},
	{PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_IOAT, 0},
	{0, 0}
};

/* table of devices that work with this driver */
static const struct pci_device_id pci_tbl[] = {
	{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_FBD_CNB) },
	{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_5000_ERR) },
	{ } /* Terminating entry */
};

/* Check for known platforms with I/O-AT */
static inline int i7300_idle_platform_probe(struct pci_dev **fbd_dev,
						struct pci_dev **ioat_dev,
						int enable_all)
{
	int i;
	struct pci_dev *memdev, *dmadev;

	memdev = pci_get_bus_and_slot(MEMCTL_BUS, MEMCTL_DEVFN);
	if (!memdev)
		return -ENODEV;

	for (i = 0; pci_tbl[i].vendor != 0; i++) {
		if (memdev->vendor == pci_tbl[i].vendor &&
		    memdev->device == pci_tbl[i].device) {
			break;
		}
	}
	if (pci_tbl[i].vendor == 0)
		return -ENODEV;

	dmadev = pci_get_bus_and_slot(IOAT_BUS, IOAT_DEVFN);
	if (!dmadev)
		return -ENODEV;

	for (i = 0; fbd_ioat_list[i].vendor != 0; i++) {
		if (dmadev->vendor == fbd_ioat_list[i].vendor &&
		    dmadev->device == fbd_ioat_list[i].ioat_dev) {
			if (!(fbd_ioat_list[i].enabled || enable_all))
				continue;
			if (fbd_dev)
				*fbd_dev = memdev;
			if (ioat_dev)
				*ioat_dev = dmadev;

			return 0;
		}
	}
	return -ENODEV;
}

#endif
Commit	Line	Data
3ad0b02e VP	1
	2	#ifndef I7300_IDLE_H
	3	#define I7300_IDLE_H
	4
	5	#include <linux/pci.h>
	6
	7	/*
	8	* I/O AT controls (PCI bus 0 device 8 function 0)
	9	* DIMM controls (PCI bus 0 device 16 function 1)
	10	*/
	11	#define IOAT_BUS 0
	12	#define IOAT_DEVFN PCI_DEVFN(8, 0)
	13	#define MEMCTL_BUS 0
	14	#define MEMCTL_DEVFN PCI_DEVFN(16, 1)
	15
	16	struct fbd_ioat {
	17	unsigned int vendor;
	18	unsigned int ioat_dev;
2f102607	19	unsigned int enabled;
3ad0b02e VP	20	};
	21
	22	/*
	23	* The i5000 chip-set has the same hooks as the i7300
2f102607 LB	24	* but it is not enabled by default and must be manually
	25	* manually enabled with "forceload=1" because it is
	26	* only lightly validated.
3ad0b02e	27	*/
3ad0b02e VP	28
3ad0b02e VP	29	static const struct fbd_ioat fbd_ioat_list[] = {
2f102607 LB	30	{PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_IOAT_CNB, 1},
2f102607 LB	31	{PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_IOAT, 0},
3ad0b02e VP	32	{0, 0}
	33	};
	34
	35	/* table of devices that work with this driver */
	36	static const struct pci_device_id pci_tbl[] = {
	37	{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_FBD_CNB) },
3ad0b02e	38	{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_5000_ERR) },
3ad0b02e VP	39	{ } /* Terminating entry */
	40	};
	41
	42	/* Check for known platforms with I/O-AT */
	43	static inline int i7300_idle_platform_probe(struct pci_dev **fbd_dev,
2f102607 LB	44	struct pci_dev **ioat_dev,
2f102607 LB	45	int enable_all)
3ad0b02e VP	46	{
	47	int i;
	48	struct pci_dev memdev, dmadev;
	49
	50	memdev = pci_get_bus_and_slot(MEMCTL_BUS, MEMCTL_DEVFN);
	51	if (!memdev)
	52	return -ENODEV;
	53
	54	for (i = 0; pci_tbl[i].vendor != 0; i++) {
	55	if (memdev->vendor == pci_tbl[i].vendor &&
	56	memdev->device == pci_tbl[i].device) {
	57	break;
	58	}
	59	}
	60	if (pci_tbl[i].vendor == 0)
	61	return -ENODEV;
	62
	63	dmadev = pci_get_bus_and_slot(IOAT_BUS, IOAT_DEVFN);
	64	if (!dmadev)
	65	return -ENODEV;
	66
	67	for (i = 0; fbd_ioat_list[i].vendor != 0; i++) {
	68	if (dmadev->vendor == fbd_ioat_list[i].vendor &&
	69	dmadev->device == fbd_ioat_list[i].ioat_dev) {
2f102607 LB	70	if (!(fbd_ioat_list[i].enabled \|\| enable_all))
2f102607 LB	71	continue;
3ad0b02e VP	72	if (fbd_dev)
	73	*fbd_dev = memdev;
	74	if (ioat_dev)
	75	*ioat_dev = dmadev;
	76
	77	return 0;
	78	}
	79	}
	80	return -ENODEV;
	81	}
	82
	83	#endif