Merge tag 'efi-urgent' of git://git.kernel.org/pub/scm/linux/kernel/git/mfleming...

[firefly-linux-kernel-4.4.55.git] / drivers / iommu / irq_remapping.c

diff --git a/drivers/iommu/irq_remapping.c b/drivers/iommu/irq_remapping.c
index 7baa54a13921b8344c2f9de1280153fe86e05ae1..2d9993062ded6b2d543c89a9c09c3e6a85dfb17f 100644 (file)
--- a/drivers/iommu/irq_remapping.c
+++ b/drivers/iommu/irq_remapping.c
@@ -22,14 +22,11 @@ int irq_remap_broken;
 int disable_sourceid_checking;
 int no_x2apic_optout;
 
+int disable_irq_post = 1;
+
 static int disable_irq_remap;
 static struct irq_remap_ops *remap_ops;
 
-static bool irq_remapped(struct irq_cfg *cfg)
-{
-       return (cfg->remapped == 1);
-}
-
 static void irq_remapping_disable_io_apic(void)
 {
        /*
@@ -43,21 +40,9 @@ static void irq_remapping_disable_io_apic(void)
                disconnect_bsp_APIC(0);
 }
 
-static void eoi_ioapic_pin_remapped(int apic, int pin, int vector)
-{
-       /*
-        * Intr-remapping uses pin number as the virtual vector
-        * in the RTE. Actual vector is programmed in
-        * intr-remapping table entry. Hence for the io-apic
-        * EOI we use the pin number.
-        */
-       io_apic_eoi(apic, pin);
-}
-
 static void __init irq_remapping_modify_x86_ops(void)
 {
        x86_io_apic_ops.disable         = irq_remapping_disable_io_apic;
-       x86_io_apic_ops.eoi_ioapic_pin  = eoi_ioapic_pin_remapped;
 }
 
 static __init int setup_nointremap(char *str)
@@ -96,6 +81,15 @@ void set_irq_remapping_broken(void)
        irq_remap_broken = 1;
 }
 
+bool irq_remapping_cap(enum irq_remap_cap cap)
+{
+       if (!remap_ops || disable_irq_post)
+               return 0;
+
+       return (remap_ops->capability & (1 << cap));
+}
+EXPORT_SYMBOL_GPL(irq_remapping_cap);
+
 int __init irq_remapping_prepare(void)
 {
        if (disable_irq_remap)
@@ -152,14 +146,6 @@ int __init irq_remap_enable_fault_handling(void)
        return remap_ops->enable_faulting();
 }
 
-void free_remapped_irq(int irq)
-{
-       struct irq_cfg *cfg = irq_cfg(irq);
-
-       if (irq_remapped(cfg) && remap_ops->free_irq)
-               remap_ops->free_irq(irq);
-}
-
 void panic_if_irq_remap(const char *msg)
 {
        if (irq_remapping_enabled)
@@ -171,33 +157,6 @@ void ir_ack_apic_edge(struct irq_data *data)
        ack_APIC_irq();
 }
 
-static void ir_ack_apic_level(struct irq_data *data)
-{
-       ack_APIC_irq();
-       eoi_ioapic_irq(data->irq, irqd_cfg(data));
-}
-
-static void ir_print_prefix(struct irq_data *data, struct seq_file *p)
-{
-       seq_printf(p, " IR-%s", data->chip->name);
-}
-
-void irq_remap_modify_chip_defaults(struct irq_chip *chip)
-{
-       chip->irq_print_chip = ir_print_prefix;
-       chip->irq_ack = ir_ack_apic_edge;
-       chip->irq_eoi = ir_ack_apic_level;
-}
-
-bool setup_remapped_irq(int irq, struct irq_cfg *cfg, struct irq_chip *chip)
-{
-       if (!irq_remapped(cfg))
-               return false;
-       irq_set_status_flags(irq, IRQ_MOVE_PCNTXT);
-       irq_remap_modify_chip_defaults(chip);
-       return true;
-}
-
 /**
  * irq_remapping_get_ir_irq_domain - Get the irqdomain associated with the IOMMU
  *                                  device serving request @info