Lines Matching full:v2m
2 * ARM GIC v2m MSI(-X) support
57 /* List of flags for specific v2m implementation */
72 u32 flags; /* v2m flags for specific implementation */
103 struct v2m_data *v2m = irq_data_get_irq_chip_data(data); in gicv2m_compose_msi_msg() local
104 phys_addr_t addr = v2m->res.start + V2M_MSI_SETSPI_NS; in gicv2m_compose_msi_msg()
110 if (v2m->flags & GICV2M_NEEDS_SPI_OFFSET) in gicv2m_compose_msi_msg()
111 msg->data -= v2m->spi_offset; in gicv2m_compose_msi_msg()
158 static void gicv2m_unalloc_msi(struct v2m_data *v2m, unsigned int hwirq, in gicv2m_unalloc_msi() argument
162 bitmap_release_region(v2m->bm, hwirq - v2m->spi_start, in gicv2m_unalloc_msi()
170 struct v2m_data *v2m = NULL, *tmp; in gicv2m_irq_domain_alloc() local
178 v2m = tmp; in gicv2m_irq_domain_alloc()
184 if (!v2m) in gicv2m_irq_domain_alloc()
187 hwirq = v2m->spi_start + offset; in gicv2m_irq_domain_alloc()
195 &gicv2m_irq_chip, v2m); in gicv2m_irq_domain_alloc()
202 gicv2m_unalloc_msi(v2m, hwirq, nr_irqs); in gicv2m_irq_domain_alloc()
210 struct v2m_data *v2m = irq_data_get_irq_chip_data(d); in gicv2m_irq_domain_free() local
212 gicv2m_unalloc_msi(v2m, d->hwirq, nr_irqs); in gicv2m_irq_domain_free()
252 struct v2m_data *v2m, *tmp; in gicv2m_teardown() local
254 list_for_each_entry_safe(v2m, tmp, &v2m_nodes, entry) { in gicv2m_teardown()
255 list_del(&v2m->entry); in gicv2m_teardown()
256 kfree(v2m->bm); in gicv2m_teardown()
257 iounmap(v2m->base); in gicv2m_teardown()
258 of_node_put(to_of_node(v2m->fwnode)); in gicv2m_teardown()
259 if (is_fwnode_irqchip(v2m->fwnode)) in gicv2m_teardown()
260 irq_domain_free_fwnode(v2m->fwnode); in gicv2m_teardown()
261 kfree(v2m); in gicv2m_teardown()
268 struct v2m_data *v2m; in gicv2m_allocate_domains() local
270 v2m = list_first_entry_or_null(&v2m_nodes, struct v2m_data, entry); in gicv2m_allocate_domains()
271 if (!v2m) in gicv2m_allocate_domains()
274 inner_domain = irq_domain_create_tree(v2m->fwnode, in gicv2m_allocate_domains()
275 &gicv2m_domain_ops, v2m); in gicv2m_allocate_domains()
283 pci_domain = pci_msi_create_irq_domain(v2m->fwnode, in gicv2m_allocate_domains()
286 plat_domain = platform_msi_create_irq_domain(v2m->fwnode, in gicv2m_allocate_domains()
307 struct v2m_data *v2m; in gicv2m_init_one() local
309 v2m = kzalloc(sizeof(struct v2m_data), GFP_KERNEL); in gicv2m_init_one()
310 if (!v2m) { in gicv2m_init_one()
315 INIT_LIST_HEAD(&v2m->entry); in gicv2m_init_one()
316 v2m->fwnode = fwnode; in gicv2m_init_one()
318 memcpy(&v2m->res, res, sizeof(struct resource)); in gicv2m_init_one()
320 v2m->base = ioremap(v2m->res.start, resource_size(&v2m->res)); in gicv2m_init_one()
321 if (!v2m->base) { in gicv2m_init_one()
328 v2m->spi_start = spi_start; in gicv2m_init_one()
329 v2m->nr_spis = nr_spis; in gicv2m_init_one()
331 u32 typer = readl_relaxed(v2m->base + V2M_MSI_TYPER); in gicv2m_init_one()
333 v2m->spi_start = V2M_MSI_TYPER_BASE_SPI(typer); in gicv2m_init_one()
334 v2m->nr_spis = V2M_MSI_TYPER_NUM_SPI(typer); in gicv2m_init_one()
337 if (!is_msi_spi_valid(v2m->spi_start, v2m->nr_spis)) { in gicv2m_init_one()
353 switch (readl_relaxed(v2m->base + V2M_MSI_IIDR)) { in gicv2m_init_one()
355 v2m->flags |= GICV2M_NEEDS_SPI_OFFSET; in gicv2m_init_one()
356 v2m->spi_offset = v2m->spi_start; in gicv2m_init_one()
359 v2m->flags |= GICV2M_NEEDS_SPI_OFFSET; in gicv2m_init_one()
360 v2m->spi_offset = 32; in gicv2m_init_one()
364 v2m->bm = kcalloc(BITS_TO_LONGS(v2m->nr_spis), sizeof(long), in gicv2m_init_one()
366 if (!v2m->bm) { in gicv2m_init_one()
371 list_add_tail(&v2m->entry, &v2m_nodes); in gicv2m_init_one()
374 v2m->spi_start, (v2m->spi_start + v2m->nr_spis - 1)); in gicv2m_init_one()
378 iounmap(v2m->base); in gicv2m_init_one()
380 kfree(v2m); in gicv2m_init_one()
385 { .compatible = "arm,gic-v2m-frame", },
406 pr_err("Failed to allocate v2m resource.\n"); in gicv2m_of_init()
413 pr_info("DT overriding V2M MSI_TYPER (base:%u, num:%u)\n", in gicv2m_of_init()
470 pr_info("ACPI overriding V2M MSI_TYPER (base:%u, num:%u)\n", in acpi_parse_madt_msi()