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authorMilton Miller <miltonm@bga.com>2011-05-24 20:34:18 +0000
committerBenjamin Herrenschmidt <benh@kernel.crashing.org>2011-05-26 13:38:58 +1000
commitd5a1c1937090d72c08c72e8abaa906b26459608e (patch)
treec76aca30793f0234fb9a6853d3d16ffa903b09b7 /arch/powerpc/platforms/cell/interrupt.c
parent7ef71d753ea0286bfeb4251b9ba592716ebdd9e8 (diff)
powerpc/cell: Rename ipi functions to match current abstractions
Rename functions and arguments to reflect current usage. iic_cause_ipi becomes iic_message_pass and iic_ipi_to_irq becomes iic_msg_to_irq, and iic_request_ipi now takes a message (msg) instead of an ipi number. Also mesg is renamed to msg. Commit f1072939b6 (powerpc: Remove checks for MSG_ALL and MSG_ALL_BUT_SELF) connected the smp_message_pass hook for cell to the underlying iic_cause_IPI, a platform unique name. Later 23d72bfd8f (powerpc: Consolidate ipi message mux and demux) added a cause_ipi hook to the smp_ops, also used in message passing, but for controllers that can not send 4 unique messages and require multiplexing. It is even more confusing that the both take two arguments, but one is the small message ordinal and the other is an opaque long data associated with the cpu. Since cell iic maps messages one to one to ipi irqs, rename the function and argument to translate from ipi to message. Also make it clear that iic_request_ipi takes a message number as the argument for which ipi to create and request. No functionional change, just renames to avoid future confusion. Signed-off-by: Milton Miller <miltonm@bga.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Diffstat (limited to 'arch/powerpc/platforms/cell/interrupt.c')
-rw-r--r--arch/powerpc/platforms/cell/interrupt.c16
1 files changed, 8 insertions, 8 deletions
diff --git a/arch/powerpc/platforms/cell/interrupt.c b/arch/powerpc/platforms/cell/interrupt.c
index 4469be609a31..3e4eba603e6b 100644
--- a/arch/powerpc/platforms/cell/interrupt.c
+++ b/arch/powerpc/platforms/cell/interrupt.c
@@ -176,14 +176,14 @@ EXPORT_SYMBOL_GPL(iic_get_target_id);
#ifdef CONFIG_SMP
/* Use the highest interrupt priorities for IPI */
-static inline int iic_ipi_to_irq(int ipi)
+static inline int iic_msg_to_irq(int msg)
{
- return IIC_IRQ_TYPE_IPI + 0xf - ipi;
+ return IIC_IRQ_TYPE_IPI + 0xf - msg;
}
-void iic_cause_IPI(int cpu, int mesg)
+void iic_message_pass(int cpu, int msg)
{
- out_be64(&per_cpu(cpu_iic, cpu).regs->generate, (0xf - mesg) << 4);
+ out_be64(&per_cpu(cpu_iic, cpu).regs->generate, (0xf - msg) << 4);
}
struct irq_host *iic_get_irq_host(int node)
@@ -192,14 +192,14 @@ struct irq_host *iic_get_irq_host(int node)
}
EXPORT_SYMBOL_GPL(iic_get_irq_host);
-static void iic_request_ipi(int ipi)
+static void iic_request_ipi(int msg)
{
int virq;
- virq = irq_create_mapping(iic_host, iic_ipi_to_irq(ipi));
+ virq = irq_create_mapping(iic_host, iic_msg_to_irq(msg));
if (virq == NO_IRQ) {
printk(KERN_ERR
- "iic: failed to map IPI %s\n", smp_ipi_name[ipi]);
+ "iic: failed to map IPI %s\n", smp_ipi_name[msg]);
return;
}
@@ -207,7 +207,7 @@ static void iic_request_ipi(int ipi)
* If smp_request_message_ipi encounters an error it will notify
* the error. If a message is not needed it will return non-zero.
*/
- if (smp_request_message_ipi(virq, ipi))
+ if (smp_request_message_ipi(virq, msg))
irq_dispose_mapping(virq);
}