forked from KolibriOS/kolibrios
140 lines
3.5 KiB
C
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);
|
|
}
|
|
|
|
|