head	1.1;
branch	1.1.1;
access;
symbols
	libdrm-1_0_4:1.1.1.1
	AGPGART_2_0:1.1.1.1
	TUNGSTEN:1.1.1;
locks; strict;
comment	@ * @;


1.1
date	2003.01.11.02.27.45;	author jhartmann;	state Exp;
branches
	1.1.1.1;
next	;

1.1.1.1
date	2003.01.11.02.27.45;	author jhartmann;	state Exp;
branches;
next	;


desc
@@



1.1
log
@Initial revision
@
text
@#ifdef CONFIG_AGP_VIA

static int via_fetch_size(void)
{
	int i;
	u8 temp;
	aper_size_info_8 *values;

	values = A_SIZE_8(agp_bridge->aperture_sizes);
	pci_read_config_byte(agp_bridge->dev, VIA_APSIZE, &temp);
	for (i = 0; i < agp_bridge->num_aperture_sizes; i++) {
		if (temp == values[i].size_value) {
			agp_bridge->previous_size =
			    agp_bridge->current_size = (void *) (values + i);
			agp_bridge->aperture_size_idx = i;
			return values[i].size;
		}
	}

	return 0;
}

static int via_configure(void)
{
	u32 temp;
	aper_size_info_8 *current_size;

	current_size = A_SIZE_8(agp_bridge->current_size);
	/* aperture size */
	pci_write_config_byte(agp_bridge->dev, VIA_APSIZE,
			      current_size->size_value);
	/* address to map too */
	pci_read_config_dword(agp_bridge->dev, VIA_APBASE, &temp);
	agp_bridge->gart_bus_addr = (temp & PCI_BASE_ADDRESS_MEM_MASK);

	/* GART control register */
	pci_write_config_dword(agp_bridge->dev, VIA_GARTCTRL, 0x0000000f);

	/* attbase - aperture GATT base */
	pci_write_config_dword(agp_bridge->dev, VIA_ATTBASE,
			    (agp_bridge->gatt_bus_addr & 0xfffff000) | 3);
	return 0;
}

static void via_cleanup(void)
{
	aper_size_info_8 *previous_size;

	previous_size = A_SIZE_8(agp_bridge->previous_size);
	pci_write_config_byte(agp_bridge->dev, VIA_APSIZE,
			      previous_size->size_value);
	/* Do not disable by writing 0 to VIA_ATTBASE, it screws things up
	 * during reinitialization.
	 */
}

static void via_tlbflush(agp_memory * mem)
{
	pci_write_config_dword(agp_bridge->dev, VIA_GARTCTRL, 0x0000008f);
	pci_write_config_dword(agp_bridge->dev, VIA_GARTCTRL, 0x0000000f);
}

static aper_size_info_8 via_generic_sizes[7] =
{
	{256, 65536, 6, 0},
	{128, 32768, 5, 128},
	{64, 16384, 4, 192},
	{32, 8192, 3, 224},
	{16, 4096, 2, 240},
	{8, 2048, 1, 248},
	{4, 1024, 0, 252}
};

static int __init via_generic_setup (struct pci_dev *pdev)
{
	agp_bridge->aperture_sizes = (void *) via_generic_sizes;
	agp_bridge->size_type = U8_APER_SIZE;
	agp_bridge->num_aperture_sizes = 7;
	agp_bridge->dev_private_data = NULL;
	agp_bridge->needs_scratch_page = FALSE;
	agp_bridge->configure = via_configure;
	agp_bridge->fetch_size = via_fetch_size;
	agp_bridge->cleanup = via_cleanup;
	agp_bridge->tlb_flush = via_tlbflush;
	agp_bridge->mask_memory = agp_generic_mask_memory;
	agp_bridge->agp_enable = agp_generic_agp_enable;
	agp_bridge->cache_flush = global_cache_flush;
	agp_bridge->create_gatt_table = agp_generic_create_gatt_table;
	agp_bridge->free_gatt_table = agp_generic_free_gatt_table;
	agp_bridge->insert_memory = agp_generic_insert_memory;
	agp_bridge->remove_memory = agp_generic_remove_memory;
	agp_bridge->alloc_by_type = agp_generic_alloc_by_type;
	agp_bridge->free_by_type = agp_generic_free_by_type;
	agp_bridge->agp_alloc_page = agp_generic_alloc_page;
	agp_bridge->agp_free_page = agp_generic_free_page;
	agp_bridge->get_reserved_map = agp_generic_get_reserved_map;
	agp_bridge->suspend = agp_generic_suspend;
	agp_bridge->resume = agp_generic_resume;
	agp_bridge->get_vm_config = agp_generic_get_vm_config;

	return 0;
	
	(void) pdev; /* unused */
}

#endif /* CONFIG_AGP_VIA */
@


1.1.1.1
log
@Import of Agpgart 2.0 module
@
text
@@