C++ (Cpp) amd_irongate_tlbflush示例

示例#1

static int amd_remove_memory(struct agp_memory *mem, off_t pg_start, int type)
{
	int i;
	unsigned long __iomem *cur_gatt;
	unsigned long addr;

	if (type != 0 || mem->type != 0)
		return -EINVAL;

	for (i = pg_start; i < (mem->page_count + pg_start); i++) {
		addr = (i * PAGE_SIZE) + agp_bridge->gart_bus_addr;
		cur_gatt = GET_GATT(addr);
		writel(agp_bridge->scratch_page, cur_gatt+GET_GATT_OFF(addr));
		readl(cur_gatt+GET_GATT_OFF(addr));	/* PCI Posting. */
	}

	amd_irongate_tlbflush(mem);
	return 0;
}

示例#2

文件： amd-k7-agp.c 项目： DirtyDroidX/android_kernel_htc_m8ul

static int amd_insert_memory(struct agp_memory *mem, off_t pg_start, int type)
{
	int i, j, num_entries;
	unsigned long __iomem *cur_gatt;
	unsigned long addr;

	num_entries = A_SIZE_LVL2(agp_bridge->current_size)->num_entries;

	if (type != mem->type ||
	    agp_bridge->driver->agp_type_to_mask_type(agp_bridge, type))
		return -EINVAL;

	if ((pg_start + mem->page_count) > num_entries)
		return -EINVAL;

	j = pg_start;
	while (j < (pg_start + mem->page_count)) {
		addr = (j * PAGE_SIZE) + agp_bridge->gart_bus_addr;
		cur_gatt = GET_GATT(addr);
		if (!PGE_EMPTY(agp_bridge, readl(cur_gatt+GET_GATT_OFF(addr))))
			return -EBUSY;
		j++;
	}

	if (!mem->is_flushed) {
		global_cache_flush();
		mem->is_flushed = true;
	}

	for (i = 0, j = pg_start; i < mem->page_count; i++, j++) {
		addr = (j * PAGE_SIZE) + agp_bridge->gart_bus_addr;
		cur_gatt = GET_GATT(addr);
		writel(agp_generic_mask_memory(agp_bridge,
					       page_to_phys(mem->pages[i]),
					       mem->type),
		       cur_gatt+GET_GATT_OFF(addr));
		readl(cur_gatt+GET_GATT_OFF(addr));	
	}
	amd_irongate_tlbflush(mem);
	return 0;
}