34#include <sys/malloc.h>
35#include <sys/kernel.h>
36#include <sys/module.h>
44#include <dev/pci/pcivar.h>
45#include <dev/pci/pcireg.h>
48#include <vm/vm_extern.h>
49#include <vm/vm_kern.h>
50#include <vm/vm_object.h>
52#include <machine/bus.h>
53#include <machine/resource.h>
58#define READ2(off) bus_space_read_2(sc->bst, sc->bsh, off)
59#define READ4(off) bus_space_read_4(sc->bst, sc->bsh, off)
60#define WRITE2(off,v) bus_space_write_2(sc->bst, sc->bsh, off, v)
61#define WRITE4(off,v) bus_space_write_4(sc->bst, sc->bsh, off, v)
75 bus_space_handle_t
bsh;
83 u_int32_t apsize = AGP_GET_APERTURE(dev);
84 u_int32_t entries = apsize >> AGP_PAGE_SHIFT;
86 int i, npages, pdir_offset;
90 "allocating GATT for aperture of size %dM\n",
91 apsize / (1024*1024));
93 gatt = malloc(
sizeof(
struct agp_amd_gatt), M_AGP, M_NOWAIT);
104 gatt->
ag_virtual = (
void *)kmem_alloc_attr(entries *
sizeof(u_int32_t),
105 M_NOWAIT | M_ZERO, 0, ~0, VM_MEMATTR_WRITE_COMBINING);
108 device_printf(dev,
"allocation failed\n");
116 gatt->
ag_vdir = (
void *)kmem_alloc_attr(AGP_PAGE_SIZE, M_NOWAIT |
117 M_ZERO, 0, ~0, VM_MEMATTR_WRITE_COMBINING);
121 "failed to allocate page directory\n");
122 kmem_free((vm_offset_t)gatt->
ag_virtual, entries *
130 device_printf(dev,
"gatt -> ag_pdir %#lx\n",
137 device_printf(dev,
"allocating GATT for %d AGP page entries\n",
153 npages = ((entries *
sizeof(u_int32_t) + AGP_PAGE_SIZE - 1)
156 for (i = 0; i < npages; i++) {
160 va = ((vm_offset_t) gatt->
ag_virtual) + i * AGP_PAGE_SIZE;
162 gatt->
ag_vdir[i + pdir_offset] = pa | 1;
171 kmem_free((vm_offset_t)gatt->
ag_vdir, AGP_PAGE_SIZE);
180 if (pci_get_class(dev) != PCIC_BRIDGE
181 || pci_get_subclass(dev) != PCIS_BRIDGE_HOST)
187 switch (pci_get_devid(dev)) {
189 return (
"AMD 751 host to AGP bridge");
191 return (
"AMD 761 host to AGP bridge");
193 return (
"AMD 762 host to AGP bridge");
204 if (resource_disabled(
"agp", device_get_unit(dev)))
208 device_set_desc(dev, desc);
209 return BUS_PROBE_DEFAULT;
227 sc->
regs = bus_alloc_resource_any(dev, SYS_RES_MEMORY, &rid,
234 sc->
bst = rman_get_bustag(sc->
regs);
235 sc->
bsh = rman_get_bushandle(sc->
regs);
248 if (AGP_SET_APERTURE(dev, AGP_GET_APERTURE(dev) / 2))
257 pci_write_config(dev,
262 pci_write_config(dev,
297 bus_release_resource(dev, SYS_RES_MEMORY,
312 return (32*1024*1024) << vas;
329 vas = ffs(
aperture / 32*1024*1024) - 1;
337 | ((vas << 1) | 1))), 1);
383 DEVMETHOD(device_shutdown, bus_generic_shutdown),
384 DEVMETHOD(device_suspend, bus_generic_suspend),
385 DEVMETHOD(device_resume, bus_generic_resume),
struct agp_memory * agp_generic_alloc_memory(device_t dev, int type, vm_size_t size)
int agp_bind_memory(device_t dev, void *handle, vm_offset_t offset)
void agp_free_memory(device_t dev, void *handle)
int agp_generic_bind_memory(device_t dev, struct agp_memory *mem, vm_offset_t offset)
int agp_generic_unbind_memory(device_t dev, struct agp_memory *mem)
int agp_unbind_memory(device_t dev, void *handle)
int agp_generic_detach(device_t dev)
int agp_generic_attach(device_t dev)
int agp_generic_free_memory(device_t dev, struct agp_memory *mem)
u_int8_t agp_find_caps(device_t dev)
void agp_free_res(device_t dev)
void agp_free_cdev(device_t dev)
void * agp_alloc_memory(device_t dev, int type, vm_size_t bytes)
int agp_generic_enable(device_t dev, u_int32_t mode)
int agp_enable(device_t dev, u_int32_t mode)
static int agp_amd_attach(device_t dev)
static int agp_amd_detach(device_t dev)
static const char * agp_amd_match(device_t dev)
static void agp_amd_free_gatt(struct agp_amd_gatt *gatt)
DRIVER_MODULE(agp_amd, hostb, agp_amd_driver, agp_devclass, 0, 0)
static int agp_amd_unbind_page(device_t dev, vm_offset_t offset)
static device_method_t agp_amd_methods[]
static int agp_amd_set_aperture(device_t dev, u_int32_t aperture)
static void agp_amd_flush_tlb(device_t dev)
static u_int32_t agp_amd_get_aperture(device_t dev)
MODULE_DEPEND(agp_amd, agp, 1, 1, 1)
static devclass_t agp_devclass
static int agp_amd_bind_page(device_t dev, vm_offset_t offset, vm_offset_t physical)
static int agp_amd_probe(device_t dev)
static struct agp_amd_gatt * agp_amd_alloc_gatt(device_t dev)
static driver_t agp_amd_driver
#define AGP_AMD751_MODECTRL2
#define AGP_AMD751_REGISTERS
#define AGP_AMD751_APCTRL
#define AGP_AMD751_TLBCTRL
#define AGP_AMD751_MODECTRL
#define AGP_AMD751_ATTBASE
#define AGP_AMD751_MODECTRL_SYNEN
#define AGP_AMD751_STATUS
#define AGP_AMD751_STATUS_GCE
#define AGP_AMD751_MODECTRL2_GPDCE
#define AGP_AMD751_APBASE
struct agp_amd_gatt * gatt
u_int32_t initial_aperture