diff options
Diffstat (limited to 'drivers/irqchip')
| -rw-r--r-- | drivers/irqchip/irq-gic-v3-its.c | 21 | ||||
| -rw-r--r-- | drivers/irqchip/irq-sifive-plic.c | 33 |
2 files changed, 35 insertions, 19 deletions
diff --git a/drivers/irqchip/irq-gic-v3-its.c b/drivers/irqchip/irq-gic-v3-its.c index c3a8d732805f..868c356fbf49 100644 --- a/drivers/irqchip/irq-gic-v3-its.c +++ b/drivers/irqchip/irq-gic-v3-its.c @@ -175,6 +175,22 @@ static DEFINE_IDA(its_vpeid_ida); #define gic_data_rdist_rd_base() (gic_data_rdist()->rd_base) #define gic_data_rdist_vlpi_base() (gic_data_rdist_rd_base() + SZ_128K) +static u16 get_its_list(struct its_vm *vm) +{ + struct its_node *its; + unsigned long its_list = 0; + + list_for_each_entry(its, &its_nodes, entry) { + if (!its->is_v4) + continue; + + if (vm->vlpi_count[its->list_nr]) + __set_bit(its->list_nr, &its_list); + } + + return (u16)its_list; +} + static struct its_collection *dev_event_to_col(struct its_device *its_dev, u32 event) { @@ -976,17 +992,15 @@ static void its_send_vmapp(struct its_node *its, static void its_send_vmovp(struct its_vpe *vpe) { - struct its_cmd_desc desc; + struct its_cmd_desc desc = {}; struct its_node *its; unsigned long flags; int col_id = vpe->col_idx; desc.its_vmovp_cmd.vpe = vpe; - desc.its_vmovp_cmd.its_list = (u16)its_list_map; if (!its_list_map) { its = list_first_entry(&its_nodes, struct its_node, entry); - desc.its_vmovp_cmd.seq_num = 0; desc.its_vmovp_cmd.col = &its->collections[col_id]; its_send_single_vcommand(its, its_build_vmovp_cmd, &desc); return; @@ -1003,6 +1017,7 @@ static void its_send_vmovp(struct its_vpe *vpe) raw_spin_lock_irqsave(&vmovp_lock, flags); desc.its_vmovp_cmd.seq_num = vmovp_seq_num++; + desc.its_vmovp_cmd.its_list = get_its_list(vpe->its_vm); /* Emit VMOVPs */ list_for_each_entry(its, &its_nodes, entry) { diff --git a/drivers/irqchip/irq-sifive-plic.c b/drivers/irqchip/irq-sifive-plic.c index c72c036aea76..7d0a12fe2714 100644 --- a/drivers/irqchip/irq-sifive-plic.c +++ b/drivers/irqchip/irq-sifive-plic.c @@ -97,7 +97,7 @@ static inline void plic_irq_toggle(const struct cpumask *mask, } } -static void plic_irq_enable(struct irq_data *d) +static void plic_irq_unmask(struct irq_data *d) { unsigned int cpu = cpumask_any_and(irq_data_get_affinity_mask(d), cpu_online_mask); @@ -106,7 +106,7 @@ static void plic_irq_enable(struct irq_data *d) plic_irq_toggle(cpumask_of(cpu), d->hwirq, 1); } -static void plic_irq_disable(struct irq_data *d) +static void plic_irq_mask(struct irq_data *d) { plic_irq_toggle(cpu_possible_mask, d->hwirq, 0); } @@ -125,10 +125,8 @@ static int plic_set_affinity(struct irq_data *d, if (cpu >= nr_cpu_ids) return -EINVAL; - if (!irqd_irq_disabled(d)) { - plic_irq_toggle(cpu_possible_mask, d->hwirq, 0); - plic_irq_toggle(cpumask_of(cpu), d->hwirq, 1); - } + plic_irq_toggle(cpu_possible_mask, d->hwirq, 0); + plic_irq_toggle(cpumask_of(cpu), d->hwirq, 1); irq_data_update_effective_affinity(d, cpumask_of(cpu)); @@ -136,14 +134,18 @@ static int plic_set_affinity(struct irq_data *d, } #endif +static void plic_irq_eoi(struct irq_data *d) +{ + struct plic_handler *handler = this_cpu_ptr(&plic_handlers); + + writel(d->hwirq, handler->hart_base + CONTEXT_CLAIM); +} + static struct irq_chip plic_chip = { .name = "SiFive PLIC", - /* - * There is no need to mask/unmask PLIC interrupts. They are "masked" - * by reading claim and "unmasked" when writing it back. - */ - .irq_enable = plic_irq_enable, - .irq_disable = plic_irq_disable, + .irq_mask = plic_irq_mask, + .irq_unmask = plic_irq_unmask, + .irq_eoi = plic_irq_eoi, #ifdef CONFIG_SMP .irq_set_affinity = plic_set_affinity, #endif @@ -152,7 +154,7 @@ static struct irq_chip plic_chip = { static int plic_irqdomain_map(struct irq_domain *d, unsigned int irq, irq_hw_number_t hwirq) { - irq_set_chip_and_handler(irq, &plic_chip, handle_simple_irq); + irq_set_chip_and_handler(irq, &plic_chip, handle_fasteoi_irq); irq_set_chip_data(irq, NULL); irq_set_noprobe(irq); return 0; @@ -188,7 +190,6 @@ static void plic_handle_irq(struct pt_regs *regs) hwirq); else generic_handle_irq(irq); - writel(hwirq, claim); } csr_set(sie, SIE_SEIE); } @@ -251,8 +252,8 @@ static int __init plic_init(struct device_node *node, continue; } - /* skip context holes */ - if (parent.args[0] == -1) + /* skip contexts other than supervisor external interrupt */ + if (parent.args[0] != IRQ_S_EXT) continue; hartid = plic_find_hart_id(parent.np); |