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path: root/arch/ia64/kernel/msi_ia64.c
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Diffstat (limited to 'arch/ia64/kernel/msi_ia64.c')
-rw-r--r--arch/ia64/kernel/msi_ia64.c138
1 files changed, 51 insertions, 87 deletions
diff --git a/arch/ia64/kernel/msi_ia64.c b/arch/ia64/kernel/msi_ia64.c
index 89033933903..c430f9198d1 100644
--- a/arch/ia64/kernel/msi_ia64.c
+++ b/arch/ia64/kernel/msi_ia64.c
@@ -7,66 +7,27 @@
#include <linux/msi.h>
#include <linux/dmar.h>
#include <asm/smp.h>
-
-/*
- * Shifts for APIC-based data
- */
-
-#define MSI_DATA_VECTOR_SHIFT 0
-#define MSI_DATA_VECTOR(v) (((u8)v) << MSI_DATA_VECTOR_SHIFT)
-#define MSI_DATA_VECTOR_MASK 0xffffff00
-
-#define MSI_DATA_DELIVERY_SHIFT 8
-#define MSI_DATA_DELIVERY_FIXED (0 << MSI_DATA_DELIVERY_SHIFT)
-#define MSI_DATA_DELIVERY_LOWPRI (1 << MSI_DATA_DELIVERY_SHIFT)
-
-#define MSI_DATA_LEVEL_SHIFT 14
-#define MSI_DATA_LEVEL_DEASSERT (0 << MSI_DATA_LEVEL_SHIFT)
-#define MSI_DATA_LEVEL_ASSERT (1 << MSI_DATA_LEVEL_SHIFT)
-
-#define MSI_DATA_TRIGGER_SHIFT 15
-#define MSI_DATA_TRIGGER_EDGE (0 << MSI_DATA_TRIGGER_SHIFT)
-#define MSI_DATA_TRIGGER_LEVEL (1 << MSI_DATA_TRIGGER_SHIFT)
-
-/*
- * Shift/mask fields for APIC-based bus address
- */
-
-#define MSI_TARGET_CPU_SHIFT 4
-#define MSI_ADDR_HEADER 0xfee00000
-
-#define MSI_ADDR_DESTID_MASK 0xfff0000f
-#define MSI_ADDR_DESTID_CPU(cpu) ((cpu) << MSI_TARGET_CPU_SHIFT)
-
-#define MSI_ADDR_DESTMODE_SHIFT 2
-#define MSI_ADDR_DESTMODE_PHYS (0 << MSI_ADDR_DESTMODE_SHIFT)
-#define MSI_ADDR_DESTMODE_LOGIC (1 << MSI_ADDR_DESTMODE_SHIFT)
-
-#define MSI_ADDR_REDIRECTION_SHIFT 3
-#define MSI_ADDR_REDIRECTION_CPU (0 << MSI_ADDR_REDIRECTION_SHIFT)
-#define MSI_ADDR_REDIRECTION_LOWPRI (1 << MSI_ADDR_REDIRECTION_SHIFT)
+#include <asm/msidef.h>
static struct irq_chip ia64_msi_chip;
#ifdef CONFIG_SMP
-static void ia64_set_msi_irq_affinity(unsigned int irq,
- const cpumask_t *cpu_mask)
+static int ia64_set_msi_irq_affinity(struct irq_data *idata,
+ const cpumask_t *cpu_mask, bool force)
{
struct msi_msg msg;
u32 addr, data;
- int cpu = first_cpu(*cpu_mask);
-
- if (!cpu_online(cpu))
- return;
+ int cpu = cpumask_first_and(cpu_mask, cpu_online_mask);
+ unsigned int irq = idata->irq;
if (irq_prepare_move(irq, cpu))
- return;
+ return -1;
- read_msi_msg(irq, &msg);
+ get_cached_msi_msg(irq, &msg);
addr = msg.address_lo;
- addr &= MSI_ADDR_DESTID_MASK;
- addr |= MSI_ADDR_DESTID_CPU(cpu_physical_id(cpu));
+ addr &= MSI_ADDR_DEST_ID_MASK;
+ addr |= MSI_ADDR_DEST_ID_CPU(cpu_physical_id(cpu));
msg.address_lo = addr;
data = msg.data;
@@ -75,7 +36,9 @@ static void ia64_set_msi_irq_affinity(unsigned int irq,
msg.data = data;
write_msi_msg(irq, &msg);
- irq_desc[irq].affinity = cpumask_of_cpu(cpu);
+ cpumask_copy(idata->affinity, cpumask_of(cpu));
+
+ return 0;
}
#endif /* CONFIG_SMP */
@@ -90,17 +53,17 @@ int ia64_setup_msi_irq(struct pci_dev *pdev, struct msi_desc *desc)
if (irq < 0)
return irq;
- set_irq_msi(irq, desc);
- cpus_and(mask, irq_to_domain(irq), cpu_online_map);
+ irq_set_msi_desc(irq, desc);
+ cpumask_and(&mask, &(irq_to_domain(irq)), cpu_online_mask);
dest_phys_id = cpu_physical_id(first_cpu(mask));
vector = irq_to_vector(irq);
msg.address_hi = 0;
msg.address_lo =
MSI_ADDR_HEADER |
- MSI_ADDR_DESTMODE_PHYS |
+ MSI_ADDR_DEST_MODE_PHYS |
MSI_ADDR_REDIRECTION_CPU |
- MSI_ADDR_DESTID_CPU(dest_phys_id);
+ MSI_ADDR_DEST_ID_CPU(dest_phys_id);
msg.data =
MSI_DATA_TRIGGER_EDGE |
@@ -109,7 +72,7 @@ int ia64_setup_msi_irq(struct pci_dev *pdev, struct msi_desc *desc)
MSI_DATA_VECTOR(vector);
write_msi_msg(irq, &msg);
- set_irq_chip_and_handler(irq, &ia64_msi_chip, handle_edge_irq);
+ irq_set_chip_and_handler(irq, &ia64_msi_chip, handle_edge_irq);
return 0;
}
@@ -119,16 +82,16 @@ void ia64_teardown_msi_irq(unsigned int irq)
destroy_irq(irq);
}
-static void ia64_ack_msi_irq(unsigned int irq)
+static void ia64_ack_msi_irq(struct irq_data *data)
{
- irq_complete_move(irq);
- move_native_irq(irq);
+ irq_complete_move(data->irq);
+ irq_move_irq(data);
ia64_eoi();
}
-static int ia64_msi_retrigger_irq(unsigned int irq)
+static int ia64_msi_retrigger_irq(struct irq_data *data)
{
- unsigned int vector = irq_to_vector(irq);
+ unsigned int vector = irq_to_vector(data->irq);
ia64_resend_irq(vector);
return 1;
@@ -138,14 +101,14 @@ static int ia64_msi_retrigger_irq(unsigned int irq)
* Generic ops used on most IA64 platforms.
*/
static struct irq_chip ia64_msi_chip = {
- .name = "PCI-MSI",
- .mask = mask_msi_irq,
- .unmask = unmask_msi_irq,
- .ack = ia64_ack_msi_irq,
+ .name = "PCI-MSI",
+ .irq_mask = mask_msi_irq,
+ .irq_unmask = unmask_msi_irq,
+ .irq_ack = ia64_ack_msi_irq,
#ifdef CONFIG_SMP
- .set_affinity = ia64_set_msi_irq_affinity,
+ .irq_set_affinity = ia64_set_msi_irq_affinity,
#endif
- .retrigger = ia64_msi_retrigger_irq,
+ .irq_retrigger = ia64_msi_retrigger_irq,
};
@@ -165,41 +128,42 @@ void arch_teardown_msi_irq(unsigned int irq)
return ia64_teardown_msi_irq(irq);
}
-#ifdef CONFIG_DMAR
+#ifdef CONFIG_INTEL_IOMMU
#ifdef CONFIG_SMP
-static void dmar_msi_set_affinity(unsigned int irq, const struct cpumask *mask)
+static int dmar_msi_set_affinity(struct irq_data *data,
+ const struct cpumask *mask, bool force)
{
+ unsigned int irq = data->irq;
struct irq_cfg *cfg = irq_cfg + irq;
struct msi_msg msg;
- int cpu = cpumask_first(mask);
-
- if (!cpu_online(cpu))
- return;
+ int cpu = cpumask_first_and(mask, cpu_online_mask);
if (irq_prepare_move(irq, cpu))
- return;
+ return -1;
dmar_msi_read(irq, &msg);
msg.data &= ~MSI_DATA_VECTOR_MASK;
msg.data |= MSI_DATA_VECTOR(cfg->vector);
- msg.address_lo &= ~MSI_ADDR_DESTID_MASK;
- msg.address_lo |= MSI_ADDR_DESTID_CPU(cpu_physical_id(cpu));
+ msg.address_lo &= ~MSI_ADDR_DEST_ID_MASK;
+ msg.address_lo |= MSI_ADDR_DEST_ID_CPU(cpu_physical_id(cpu));
dmar_msi_write(irq, &msg);
- irq_desc[irq].affinity = *mask;
+ cpumask_copy(data->affinity, mask);
+
+ return 0;
}
#endif /* CONFIG_SMP */
-struct irq_chip dmar_msi_type = {
+static struct irq_chip dmar_msi_type = {
.name = "DMAR_MSI",
- .unmask = dmar_msi_unmask,
- .mask = dmar_msi_mask,
- .ack = ia64_ack_msi_irq,
+ .irq_unmask = dmar_msi_unmask,
+ .irq_mask = dmar_msi_mask,
+ .irq_ack = ia64_ack_msi_irq,
#ifdef CONFIG_SMP
- .set_affinity = dmar_msi_set_affinity,
+ .irq_set_affinity = dmar_msi_set_affinity,
#endif
- .retrigger = ia64_msi_retrigger_irq,
+ .irq_retrigger = ia64_msi_retrigger_irq,
};
static int
@@ -209,15 +173,15 @@ msi_compose_msg(struct pci_dev *pdev, unsigned int irq, struct msi_msg *msg)
unsigned dest;
cpumask_t mask;
- cpus_and(mask, irq_to_domain(irq), cpu_online_map);
+ cpumask_and(&mask, &(irq_to_domain(irq)), cpu_online_mask);
dest = cpu_physical_id(first_cpu(mask));
msg->address_hi = 0;
msg->address_lo =
MSI_ADDR_HEADER |
- MSI_ADDR_DESTMODE_PHYS |
+ MSI_ADDR_DEST_MODE_PHYS |
MSI_ADDR_REDIRECTION_CPU |
- MSI_ADDR_DESTID_CPU(dest);
+ MSI_ADDR_DEST_ID_CPU(dest);
msg->data =
MSI_DATA_TRIGGER_EDGE |
@@ -236,9 +200,9 @@ int arch_setup_dmar_msi(unsigned int irq)
if (ret < 0)
return ret;
dmar_msi_write(irq, &msg);
- set_irq_chip_and_handler_name(irq, &dmar_msi_type, handle_edge_irq,
- "edge");
+ irq_set_chip_and_handler_name(irq, &dmar_msi_type, handle_edge_irq,
+ "edge");
return 0;
}
-#endif /* CONFIG_DMAR */
+#endif /* CONFIG_INTEL_IOMMU */
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-12-11 03:39:26 +0000