kolibrios/drivers/video/drm/i915/Gtt/intel-agp.c
Sergey Semyonov (Serge) 8aa816f1ce drm: 3.19-rc2
git-svn-id: svn://kolibrios.org@5354 a494cfbc-eb01-0410-851d-a64ba20cac60
2015-01-05 19:15:42 +00:00

140 lines
3.5 KiB
C

/*
* Intel AGPGART routines.
*/
#include <linux/module.h>
#include <linux/mod_devicetable.h>
#include <linux/gfp.h>
#include <linux/pci.h>
#include <linux/slab.h>
#include <linux/kernel.h>
#include <linux/agp_backend.h>
#include "agp.h"
#include "intel-agp.h"
#include <drm/intel-gtt.h>
#include <linux/spinlock.h>
#include <syscall.h>
#define __devinit
#define PCI_VENDOR_ID_INTEL 0x8086
#define PCI_DEVICE_ID_INTEL_82915G_HB 0x2580
#define PCI_DEVICE_ID_INTEL_82915GM_HB 0x2590
#define PCI_DEVICE_ID_INTEL_82945G_HB 0x2770
#define PCI_DEVICE_ID_INTEL_82945GM_HB 0x27A0
int intel_gmch_probe(struct pci_dev *bridge_pdev, struct pci_dev *gpu_pdev,
struct agp_bridge_data *bridge);
int intel_agp_enabled;
struct agp_bridge_data *agp_alloc_bridge(void)
{
struct agp_bridge_data *bridge;
bridge = kzalloc(sizeof(*bridge), GFP_KERNEL);
if (!bridge)
return NULL;
atomic_set(&bridge->agp_in_use, 0);
atomic_set(&bridge->current_memory_agp, 0);
// if (list_empty(&agp_bridges))
// agp_bridge = bridge;
return bridge;
}
static int __devinit agp_intel_probe(struct pci_dev *pdev,
const struct pci_device_id *ent)
{
struct agp_bridge_data *bridge;
u8 cap_ptr = 0;
int err = -ENODEV;
cap_ptr = pci_find_capability(pdev, PCI_CAP_ID_AGP);
bridge = agp_alloc_bridge();
if (!bridge)
return -ENOMEM;
bridge->capndx = cap_ptr;
if (intel_gmch_probe(pdev, NULL, bridge))
{
// pci_set_drvdata(pdev, bridge);
// err = agp_add_bridge(bridge);
// if (!err)
intel_agp_enabled = 1;
err = 0;
}
return err;
}
static struct pci_device_id agp_intel_pci_table[] = {
#define ID(x) \
{ \
.class = (PCI_CLASS_BRIDGE_HOST << 8), \
.class_mask = ~0, \
.vendor = PCI_VENDOR_ID_INTEL, \
.device = x, \
.subvendor = PCI_ANY_ID, \
.subdevice = PCI_ANY_ID, \
}
ID(PCI_DEVICE_ID_INTEL_E7221_HB),
ID(PCI_DEVICE_ID_INTEL_82915G_HB),
ID(PCI_DEVICE_ID_INTEL_82915GM_HB),
ID(PCI_DEVICE_ID_INTEL_82945G_HB),
ID(PCI_DEVICE_ID_INTEL_82945GM_HB),
ID(PCI_DEVICE_ID_INTEL_82945GME_HB),
ID(PCI_DEVICE_ID_INTEL_PINEVIEW_M_HB),
ID(PCI_DEVICE_ID_INTEL_PINEVIEW_HB),
ID(PCI_DEVICE_ID_INTEL_82946GZ_HB),
ID(PCI_DEVICE_ID_INTEL_82G35_HB),
ID(PCI_DEVICE_ID_INTEL_82965Q_HB),
ID(PCI_DEVICE_ID_INTEL_82965G_HB),
ID(PCI_DEVICE_ID_INTEL_82965GM_HB),
ID(PCI_DEVICE_ID_INTEL_82965GME_HB),
ID(PCI_DEVICE_ID_INTEL_G33_HB),
ID(PCI_DEVICE_ID_INTEL_Q35_HB),
ID(PCI_DEVICE_ID_INTEL_Q33_HB),
ID(PCI_DEVICE_ID_INTEL_GM45_HB),
ID(PCI_DEVICE_ID_INTEL_EAGLELAKE_HB),
ID(PCI_DEVICE_ID_INTEL_Q45_HB),
ID(PCI_DEVICE_ID_INTEL_G45_HB),
ID(PCI_DEVICE_ID_INTEL_G41_HB),
ID(PCI_DEVICE_ID_INTEL_B43_HB),
ID(PCI_DEVICE_ID_INTEL_B43_1_HB),
ID(PCI_DEVICE_ID_INTEL_IRONLAKE_D_HB),
ID(PCI_DEVICE_ID_INTEL_IRONLAKE_D2_HB),
ID(PCI_DEVICE_ID_INTEL_IRONLAKE_M_HB),
ID(PCI_DEVICE_ID_INTEL_IRONLAKE_MA_HB),
ID(PCI_DEVICE_ID_INTEL_IRONLAKE_MC2_HB),
{ }
};
static pci_dev_t agp_device;
int init_agp(void)
{
const struct pci_device_id *ent;
ent = find_pci_device(&agp_device, agp_intel_pci_table);
if( unlikely(ent == NULL) )
{
dbgprintf("host controller not found\n");
return -ENODEV;
};
return agp_intel_probe(&agp_device.pci_dev, ent);
}