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authorShawn Guo <shawn.guo@linaro.org>2012-06-28 14:42:08 +0800
committerShawn Guo <shawn.guo@linaro.org>2012-07-01 21:59:19 +0800
commitbc89663aa5c7ca620f58c34ab531ca409119becc (patch)
treeaf249454a1660849004f1beb26eeccddba61ba2f
parent1ee8f65b5689504b98dacb6641fc8b2cc5618ad4 (diff)
ARM: fiq: change FIQ_START to a variable
The commit a2be01b (ARM: only include mach/irqs.h for !SPARSE_IRQ) makes mach/irqs.h only be included for !SPARSE_IRQ build. There are a nubmer of platforms have FIQ_START defined in mach/irqs.h for FIQ support. arch/arm/mach-rpc/include/mach/irqs.h:#define FIQ_START 64 arch/arm/mach-s3c24xx/include/mach/irqs.h:#define FIQ_START IRQ_EINT0 arch/arm/plat-mxc/include/mach/irqs.h:#define FIQ_START 0 If SPARSE_IRQ is enabled for any of these platforms, the following compile error will be seen. arch/arm/kernel/fiq.c: In function ‘enable_fiq’: arch/arm/kernel/fiq.c:127:19: error: ‘FIQ_START’ undeclared (first use in this function) arch/arm/kernel/fiq.c:127:19: note: each undeclared identifier is reported only once for each function it appears in arch/arm/kernel/fiq.c: In function ‘disable_fiq’: arch/arm/kernel/fiq.c:132:20: error: ‘FIQ_START’ undeclared (first use in this function) The patch changes fiq code to have init_FIQ take FIQ_START from platforms as a parameter and assign it to variable fiq_start which is to replace FIQ_START uses in enable_fiq/disable_fiq. Signed-off-by: Shawn Guo <shawn.guo@linaro.org> Cc: Kukjin Kim <kgene.kim@samsung.com> Cc: Sascha Hauer <s.hauer@pengutronix.de> Cc: Rob Herring <rob.herring@calxeda.com> Acked-by: Russell King <rmk+kernel@arm.linux.org.uk>
-rw-r--r--arch/arm/include/asm/mach/irq.h2
-rw-r--r--arch/arm/kernel/fiq.c9
-rw-r--r--arch/arm/mach-rpc/irq.c2
-rw-r--r--arch/arm/plat-mxc/avic.c2
-rw-r--r--arch/arm/plat-mxc/tzic.c2
-rw-r--r--arch/arm/plat-s3c24xx/irq.c2
6 files changed, 11 insertions, 8 deletions
diff --git a/arch/arm/include/asm/mach/irq.h b/arch/arm/include/asm/mach/irq.h
index febe495d0c6e..15cb035309f7 100644
--- a/arch/arm/include/asm/mach/irq.h
+++ b/arch/arm/include/asm/mach/irq.h
@@ -17,7 +17,7 @@ struct seq_file;
/*
* This is internal. Do not use it.
*/
-extern void init_FIQ(void);
+extern void init_FIQ(int);
extern int show_fiq_list(struct seq_file *, int);
#ifdef CONFIG_MULTI_IRQ_HANDLER
diff --git a/arch/arm/kernel/fiq.c b/arch/arm/kernel/fiq.c
index c32f8456aa09..2adda11f712f 100644
--- a/arch/arm/kernel/fiq.c
+++ b/arch/arm/kernel/fiq.c
@@ -122,14 +122,16 @@ void release_fiq(struct fiq_handler *f)
while (current_fiq->fiq_op(current_fiq->dev_id, 0));
}
+static int fiq_start;
+
void enable_fiq(int fiq)
{
- enable_irq(fiq + FIQ_START);
+ enable_irq(fiq + fiq_start);
}
void disable_fiq(int fiq)
{
- disable_irq(fiq + FIQ_START);
+ disable_irq(fiq + fiq_start);
}
EXPORT_SYMBOL(set_fiq_handler);
@@ -140,7 +142,8 @@ EXPORT_SYMBOL(release_fiq);
EXPORT_SYMBOL(enable_fiq);
EXPORT_SYMBOL(disable_fiq);
-void __init init_FIQ(void)
+void __init init_FIQ(int start)
{
no_fiq_insn = *(unsigned long *)0xffff001c;
+ fiq_start = start;
}
diff --git a/arch/arm/mach-rpc/irq.c b/arch/arm/mach-rpc/irq.c
index cf0e669eaf1a..3e4fa849c64d 100644
--- a/arch/arm/mach-rpc/irq.c
+++ b/arch/arm/mach-rpc/irq.c
@@ -163,6 +163,6 @@ void __init rpc_init_irq(void)
}
}
- init_FIQ();
+ init_FIQ(FIQ_START);
}
diff --git a/arch/arm/plat-mxc/avic.c b/arch/arm/plat-mxc/avic.c
index e612cc1edede..f3d671ff7f1b 100644
--- a/arch/arm/plat-mxc/avic.c
+++ b/arch/arm/plat-mxc/avic.c
@@ -217,7 +217,7 @@ void __init mxc_init_irq(void __iomem *irqbase)
#ifdef CONFIG_FIQ
/* Initialize FIQ */
- init_FIQ();
+ init_FIQ(FIQ_START);
#endif
printk(KERN_INFO "MXC IRQ initialized\n");
diff --git a/arch/arm/plat-mxc/tzic.c b/arch/arm/plat-mxc/tzic.c
index abc90e4116f5..c60a7e416385 100644
--- a/arch/arm/plat-mxc/tzic.c
+++ b/arch/arm/plat-mxc/tzic.c
@@ -192,7 +192,7 @@ void __init tzic_init_irq(void __iomem *irqbase)
#ifdef CONFIG_FIQ
/* Initialize FIQ */
- init_FIQ();
+ init_FIQ(FIQ_START);
#endif
pr_info("TrustZone Interrupt Controller (TZIC) initialized\n");
diff --git a/arch/arm/plat-s3c24xx/irq.c b/arch/arm/plat-s3c24xx/irq.c
index bc42c04091fd..fe57bbbf166b 100644
--- a/arch/arm/plat-s3c24xx/irq.c
+++ b/arch/arm/plat-s3c24xx/irq.c
@@ -533,7 +533,7 @@ void __init s3c24xx_init_irq(void)
int i;
#ifdef CONFIG_FIQ
- init_FIQ();
+ init_FIQ(FIQ_START);
#endif
irqdbf("s3c2410_init_irq: clearing interrupt status flags\n");