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Diffstat (limited to 'arch')
-rw-r--r--arch/sparc64/Kconfig4
-rw-r--r--arch/sparc64/kernel/irq.c85
-rw-r--r--arch/sparc64/kernel/pci_msi.c14
3 files changed, 53 insertions, 50 deletions
diff --git a/arch/sparc64/Kconfig b/arch/sparc64/Kconfig
index c7a74e376985..03c4e5c1b94a 100644
--- a/arch/sparc64/Kconfig
+++ b/arch/sparc64/Kconfig
@@ -72,6 +72,10 @@ config ARCH_NO_VIRT_TO_BUS
config OF
def_bool y
+config GENERIC_HARDIRQS_NO__DO_IRQ
+ bool
+ def_bool y
+
choice
prompt "Kernel page size"
default SPARC64_PAGE_SIZE_8KB
diff --git a/arch/sparc64/kernel/irq.c b/arch/sparc64/kernel/irq.c
index 2c3bea228159..30431bd24e1e 100644
--- a/arch/sparc64/kernel/irq.c
+++ b/arch/sparc64/kernel/irq.c
@@ -257,8 +257,8 @@ struct irq_handler_data {
unsigned long imap;
void (*pre_handler)(unsigned int, void *, void *);
- void *pre_handler_arg1;
- void *pre_handler_arg2;
+ void *arg1;
+ void *arg2;
};
#ifdef CONFIG_SMP
@@ -346,7 +346,7 @@ static void sun4u_irq_disable(unsigned int virt_irq)
}
}
-static void sun4u_irq_end(unsigned int virt_irq)
+static void sun4u_irq_eoi(unsigned int virt_irq)
{
struct irq_handler_data *data = get_irq_chip_data(virt_irq);
struct irq_desc *desc = irq_desc + virt_irq;
@@ -401,7 +401,7 @@ static void sun4v_irq_disable(unsigned int virt_irq)
"err(%d)\n", ino, err);
}
-static void sun4v_irq_end(unsigned int virt_irq)
+static void sun4v_irq_eoi(unsigned int virt_irq)
{
unsigned int ino = virt_irq_table[virt_irq].dev_ino;
struct irq_desc *desc = irq_desc + virt_irq;
@@ -478,7 +478,7 @@ static void sun4v_virq_disable(unsigned int virt_irq)
dev_handle, dev_ino, err);
}
-static void sun4v_virq_end(unsigned int virt_irq)
+static void sun4v_virq_eoi(unsigned int virt_irq)
{
struct irq_desc *desc = irq_desc + virt_irq;
unsigned long dev_handle, dev_ino;
@@ -498,33 +498,11 @@ static void sun4v_virq_end(unsigned int virt_irq)
dev_handle, dev_ino, err);
}
-static void run_pre_handler(unsigned int virt_irq)
-{
- struct irq_handler_data *data = get_irq_chip_data(virt_irq);
- unsigned int ino;
-
- ino = virt_irq_table[virt_irq].dev_ino;
- if (likely(data->pre_handler)) {
- data->pre_handler(ino,
- data->pre_handler_arg1,
- data->pre_handler_arg2);
- }
-}
-
static struct irq_chip sun4u_irq = {
.typename = "sun4u",
.enable = sun4u_irq_enable,
.disable = sun4u_irq_disable,
- .end = sun4u_irq_end,
- .set_affinity = sun4u_set_affinity,
-};
-
-static struct irq_chip sun4u_irq_ack = {
- .typename = "sun4u+ack",
- .enable = sun4u_irq_enable,
- .disable = sun4u_irq_disable,
- .ack = run_pre_handler,
- .end = sun4u_irq_end,
+ .eoi = sun4u_irq_eoi,
.set_affinity = sun4u_set_affinity,
};
@@ -532,7 +510,7 @@ static struct irq_chip sun4v_irq = {
.typename = "sun4v",
.enable = sun4v_irq_enable,
.disable = sun4v_irq_disable,
- .end = sun4v_irq_end,
+ .eoi = sun4v_irq_eoi,
.set_affinity = sun4v_set_affinity,
};
@@ -540,31 +518,33 @@ static struct irq_chip sun4v_virq = {
.typename = "vsun4v",
.enable = sun4v_virq_enable,
.disable = sun4v_virq_disable,
- .end = sun4v_virq_end,
+ .eoi = sun4v_virq_eoi,
.set_affinity = sun4v_virt_set_affinity,
};
+static void fastcall pre_flow_handler(unsigned int virt_irq,
+ struct irq_desc *desc)
+{
+ struct irq_handler_data *data = get_irq_chip_data(virt_irq);
+ unsigned int ino = virt_irq_table[virt_irq].dev_ino;
+
+ data->pre_handler(ino, data->arg1, data->arg2);
+
+ handle_fasteoi_irq(virt_irq, desc);
+}
+
void irq_install_pre_handler(int virt_irq,
void (*func)(unsigned int, void *, void *),
void *arg1, void *arg2)
{
struct irq_handler_data *data = get_irq_chip_data(virt_irq);
- struct irq_chip *chip = get_irq_chip(virt_irq);
-
- if (WARN_ON(chip == &sun4v_irq || chip == &sun4v_virq)) {
- printk(KERN_ERR "IRQ: Trying to install pre-handler on "
- "sun4v irq %u\n", virt_irq);
- return;
- }
+ struct irq_desc *desc = irq_desc + virt_irq;
data->pre_handler = func;
- data->pre_handler_arg1 = arg1;
- data->pre_handler_arg2 = arg2;
-
- if (chip == &sun4u_irq_ack)
- return;
+ data->arg1 = arg1;
+ data->arg2 = arg2;
- set_irq_chip(virt_irq, &sun4u_irq_ack);
+ desc->handle_irq = pre_flow_handler;
}
unsigned int build_irq(int inofixup, unsigned long iclr, unsigned long imap)
@@ -582,7 +562,10 @@ unsigned int build_irq(int inofixup, unsigned long iclr, unsigned long imap)
if (!virt_irq) {
virt_irq = virt_irq_alloc(0, ino);
bucket_set_virt_irq(__pa(bucket), virt_irq);
- set_irq_chip(virt_irq, &sun4u_irq);
+ set_irq_chip_and_handler_name(virt_irq,
+ &sun4u_irq,
+ handle_fasteoi_irq,
+ "IVEC");
}
data = get_irq_chip_data(virt_irq);
@@ -617,7 +600,9 @@ static unsigned int sun4v_build_common(unsigned long sysino,
if (!virt_irq) {
virt_irq = virt_irq_alloc(0, sysino);
bucket_set_virt_irq(__pa(bucket), virt_irq);
- set_irq_chip(virt_irq, chip);
+ set_irq_chip_and_handler_name(virt_irq, chip,
+ handle_fasteoi_irq,
+ "IVEC");
}
data = get_irq_chip_data(virt_irq);
@@ -665,7 +650,10 @@ unsigned int sun4v_build_virq(u32 devhandle, unsigned int devino)
virt_irq = virt_irq_alloc(devhandle, devino);
bucket_set_virt_irq(__pa(bucket), virt_irq);
- set_irq_chip(virt_irq, &sun4v_virq);
+
+ set_irq_chip_and_handler_name(virt_irq, &sun4v_virq,
+ handle_fasteoi_irq,
+ "IVEC");
data = kzalloc(sizeof(struct irq_handler_data), GFP_ATOMIC);
if (unlikely(!data))
@@ -724,6 +712,7 @@ void handler_irq(int irq, struct pt_regs *regs)
: "memory");
while (bucket_pa) {
+ struct irq_desc *desc;
unsigned long next_pa;
unsigned int virt_irq;
@@ -731,7 +720,9 @@ void handler_irq(int irq, struct pt_regs *regs)
virt_irq = bucket_get_virt_irq(bucket_pa);
bucket_clear_chain_pa(bucket_pa);
- __do_IRQ(virt_irq);
+ desc = irq_desc + virt_irq;
+
+ desc->handle_irq(virt_irq, desc);
bucket_pa = next_pa;
}
diff --git a/arch/sparc64/kernel/pci_msi.c b/arch/sparc64/kernel/pci_msi.c
index 31a165fd3e48..d6d64b44af63 100644
--- a/arch/sparc64/kernel/pci_msi.c
+++ b/arch/sparc64/kernel/pci_msi.c
@@ -28,8 +28,15 @@ static irqreturn_t sparc64_msiq_interrupt(int irq, void *cookie)
unsigned long msi;
err = ops->dequeue_msi(pbm, msiqid, &head, &msi);
- if (likely(err > 0))
- __do_IRQ(pbm->msi_irq_table[msi - pbm->msi_first]);
+ if (likely(err > 0)) {
+ struct irq_desc *desc;
+ unsigned int virt_irq;
+
+ virt_irq = pbm->msi_irq_table[msi - pbm->msi_first];
+ desc = irq_desc + virt_irq;
+
+ desc->handle_irq(virt_irq, desc);
+ }
if (unlikely(err < 0))
goto err_dequeue;
@@ -128,7 +135,8 @@ int sparc64_setup_msi_irq(unsigned int *virt_irq_p,
if (!*virt_irq_p)
goto out_err;
- set_irq_chip(*virt_irq_p, &msi_irq);
+ set_irq_chip_and_handler_name(*virt_irq_p, &msi_irq,
+ handle_simple_irq, "MSI");
err = alloc_msi(pbm);
if (unlikely(err < 0))
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-12 20:47:45 +0000