Lines Matching refs:v2m
3 * ARM GIC v2m MSI(-X) support
55 /* List of flags for specific v2m implementation */
71 u32 flags; /* v2m flags for specific implementation */
100 static phys_addr_t gicv2m_get_msi_addr(struct v2m_data *v2m, int hwirq)
102 if (v2m->flags & GICV2M_GRAVITON_ADDRESS_ONLY)
103 return v2m->res.start | ((hwirq - 32) << 3);
105 return v2m->res.start + V2M_MSI_SETSPI_NS;
110 struct v2m_data *v2m = irq_data_get_irq_chip_data(data);
111 phys_addr_t addr = gicv2m_get_msi_addr(v2m, data->hwirq);
116 if (v2m->flags & GICV2M_GRAVITON_ADDRESS_ONLY)
120 if (v2m->flags & GICV2M_NEEDS_SPI_OFFSET)
121 msg->data -= v2m->spi_offset;
168 static void gicv2m_unalloc_msi(struct v2m_data *v2m, unsigned int hwirq,
172 bitmap_release_region(v2m->bm, hwirq - v2m->spi_start,
181 struct v2m_data *v2m = NULL, *tmp;
189 v2m = tmp;
195 if (!v2m)
198 hwirq = v2m->spi_start + offset;
201 gicv2m_get_msi_addr(v2m, hwirq));
211 &gicv2m_irq_chip, v2m);
218 gicv2m_unalloc_msi(v2m, hwirq, nr_irqs);
226 struct v2m_data *v2m = irq_data_get_irq_chip_data(d);
228 gicv2m_unalloc_msi(v2m, d->hwirq, nr_irqs);
268 struct v2m_data *v2m, *tmp;
270 list_for_each_entry_safe(v2m, tmp, &v2m_nodes, entry) {
271 list_del(&v2m->entry);
272 kfree(v2m->bm);
273 iounmap(v2m->base);
274 of_node_put(to_of_node(v2m->fwnode));
275 if (is_fwnode_irqchip(v2m->fwnode))
276 irq_domain_free_fwnode(v2m->fwnode);
277 kfree(v2m);
284 struct v2m_data *v2m;
286 v2m = list_first_entry_or_null(&v2m_nodes, struct v2m_data, entry);
287 if (!v2m)
290 inner_domain = irq_domain_create_tree(v2m->fwnode,
291 &gicv2m_domain_ops, v2m);
299 pci_domain = pci_msi_create_irq_domain(v2m->fwnode,
302 plat_domain = platform_msi_create_irq_domain(v2m->fwnode,
323 struct v2m_data *v2m;
325 v2m = kzalloc(sizeof(struct v2m_data), GFP_KERNEL);
326 if (!v2m) {
331 INIT_LIST_HEAD(&v2m->entry);
332 v2m->fwnode = fwnode;
333 v2m->flags = flags;
335 memcpy(&v2m->res, res, sizeof(struct resource));
337 v2m->base = ioremap(v2m->res.start, resource_size(&v2m->res));
338 if (!v2m->base) {
345 v2m->spi_start = spi_start;
346 v2m->nr_spis = nr_spis;
351 if (v2m->flags & GICV2M_GRAVITON_ADDRESS_ONLY) {
355 typer = readl_relaxed(v2m->base + V2M_MSI_TYPER);
357 v2m->spi_start = V2M_MSI_TYPER_BASE_SPI(typer);
358 v2m->nr_spis = V2M_MSI_TYPER_NUM_SPI(typer);
361 if (!is_msi_spi_valid(v2m->spi_start, v2m->nr_spis)) {
379 if (!(v2m->flags & GICV2M_GRAVITON_ADDRESS_ONLY)) {
380 switch (readl_relaxed(v2m->base + V2M_MSI_IIDR)) {
382 v2m->flags |= GICV2M_NEEDS_SPI_OFFSET;
383 v2m->spi_offset = v2m->spi_start;
386 v2m->flags |= GICV2M_NEEDS_SPI_OFFSET;
387 v2m->spi_offset = 32;
391 v2m->bm = kcalloc(BITS_TO_LONGS(v2m->nr_spis), sizeof(long),
393 if (!v2m->bm) {
398 list_add_tail(&v2m->entry, &v2m_nodes);
401 v2m->spi_start, (v2m->spi_start + v2m->nr_spis - 1));
405 iounmap(v2m->base);
407 kfree(v2m);
412 { .compatible = "arm,gic-v2m-frame", },
433 pr_err("Failed to allocate v2m resource.\n");