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authorPaul Mundt <lethal@linux-sh.org>2012-05-21 17:54:01 +0900
committerPaul Mundt <lethal@linux-sh.org>2012-05-21 17:54:01 +0900
commit63dc02bde6af1e41d28ebc3774c5f094f362e8c3 (patch)
tree7978dcdc298421729ea75be54aa86b22b5751948 /arch/sh
parent7f47c7189b3e8f19a589f77a3ad169d7b691b582 (diff)
downloadlinux-63dc02bde6af1e41d28ebc3774c5f094f362e8c3.tar.bz2
sh: Kill off machvec IRQ hinting.
Everything is using sparseirq these days, so we have no need to arbitrarily size nr_irqs ahead of time. The legacy IRQ pre-allocation likewise has no meaning for us, so that's killed off too. We now depend on nr_irqs expansion by the generic hardirq layer instead. It's also worth noting that the majority of boards had completely bogus values for their nr_irqs relative to their CPU and configurations, so this ends up correcting behaviour for quite a few platforms. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Diffstat (limited to 'arch/sh')
-rw-r--r--arch/sh/boards/board-edosk7705.c1
-rw-r--r--arch/sh/boards/board-edosk7760.c1
-rw-r--r--arch/sh/boards/board-polaris.c1
-rw-r--r--arch/sh/boards/board-secureedge5410.c1
-rw-r--r--arch/sh/boards/mach-cayman/setup.c1
-rw-r--r--arch/sh/boards/mach-hp6xx/setup.c2
-rw-r--r--arch/sh/boards/mach-lboxre2/setup.c1
-rw-r--r--arch/sh/boards/mach-microdev/setup.c1
-rw-r--r--arch/sh/boards/mach-sdk7780/setup.c1
-rw-r--r--arch/sh/boards/mach-se/7206/setup.c1
-rw-r--r--arch/sh/boards/mach-se/770x/setup.c11
-rw-r--r--arch/sh/boards/mach-se/7721/setup.c1
-rw-r--r--arch/sh/boards/mach-se/7724/setup.c1
-rw-r--r--arch/sh/boards/mach-se/7751/setup.c1
-rw-r--r--arch/sh/boards/mach-se/7780/setup.c1
-rw-r--r--arch/sh/boards/mach-se/board-se7619.c1
-rw-r--r--arch/sh/boards/mach-sh03/setup.c1
-rw-r--r--arch/sh/boards/mach-sh7763rdp/setup.c1
-rw-r--r--arch/sh/include/asm/irq.h13
-rw-r--r--arch/sh/include/asm/machvec.h1
-rw-r--r--arch/sh/kernel/irq.c6
-rw-r--r--arch/sh/kernel/machvec.c3
22 files changed, 12 insertions, 40 deletions
diff --git a/arch/sh/boards/board-edosk7705.c b/arch/sh/boards/board-edosk7705.c
index 0a531a1f6e23..5e24c17bbdad 100644
--- a/arch/sh/boards/board-edosk7705.c
+++ b/arch/sh/boards/board-edosk7705.c
@@ -74,6 +74,5 @@ device_initcall(init_edosk7705_devices);
*/
static struct sh_machine_vector mv_edosk7705 __initmv = {
.mv_name = "EDOSK7705",
- .mv_nr_irqs = 80,
.mv_init_irq = sh_edosk7705_init_irq,
};
diff --git a/arch/sh/boards/board-edosk7760.c b/arch/sh/boards/board-edosk7760.c
index d4871d274fb9..bab5b9513904 100644
--- a/arch/sh/boards/board-edosk7760.c
+++ b/arch/sh/boards/board-edosk7760.c
@@ -188,5 +188,4 @@ device_initcall(init_edosk7760_devices);
*/
struct sh_machine_vector mv_edosk7760 __initmv = {
.mv_name = "EDOSK7760",
- .mv_nr_irqs = 128,
};
diff --git a/arch/sh/boards/board-polaris.c b/arch/sh/boards/board-polaris.c
index 594866356c24..37d03c097ae9 100644
--- a/arch/sh/boards/board-polaris.c
+++ b/arch/sh/boards/board-polaris.c
@@ -141,6 +141,5 @@ static void __init init_polaris_irq(void)
static struct sh_machine_vector mv_polaris __initmv = {
.mv_name = "Polaris",
- .mv_nr_irqs = 61,
.mv_init_irq = init_polaris_irq,
};
diff --git a/arch/sh/boards/board-secureedge5410.c b/arch/sh/boards/board-secureedge5410.c
index 03820c3c93d4..98b36205aa7b 100644
--- a/arch/sh/boards/board-secureedge5410.c
+++ b/arch/sh/boards/board-secureedge5410.c
@@ -71,6 +71,5 @@ static void __init init_snapgear_IRQ(void)
*/
static struct sh_machine_vector mv_snapgear __initmv = {
.mv_name = "SnapGear SecureEdge5410",
- .mv_nr_irqs = 72,
.mv_init_irq = init_snapgear_IRQ,
};
diff --git a/arch/sh/boards/mach-cayman/setup.c b/arch/sh/boards/mach-cayman/setup.c
index e89e8e122a26..340fd40b381d 100644
--- a/arch/sh/boards/mach-cayman/setup.c
+++ b/arch/sh/boards/mach-cayman/setup.c
@@ -181,7 +181,6 @@ extern void init_cayman_irq(void);
static struct sh_machine_vector mv_cayman __initmv = {
.mv_name = "Hitachi Cayman",
- .mv_nr_irqs = 64,
.mv_ioport_map = cayman_ioport_map,
.mv_init_irq = init_cayman_irq,
};
diff --git a/arch/sh/boards/mach-hp6xx/setup.c b/arch/sh/boards/mach-hp6xx/setup.c
index db34cad1b76c..05797b33f68e 100644
--- a/arch/sh/boards/mach-hp6xx/setup.c
+++ b/arch/sh/boards/mach-hp6xx/setup.c
@@ -169,8 +169,6 @@ device_initcall(hp6xx_devices_setup);
static struct sh_machine_vector mv_hp6xx __initmv = {
.mv_name = "hp6xx",
.mv_setup = hp6xx_setup,
- /* IRQ's : CPU(64) + CCHIP(16) + FREE_TO_USE(6) */
- .mv_nr_irqs = HD64461_IRQBASE + HD64461_IRQ_NUM + 6,
/* Enable IRQ0 -> IRQ3 in IRQ_MODE */
.mv_init_irq = hp6xx_init_irq,
};
diff --git a/arch/sh/boards/mach-lboxre2/setup.c b/arch/sh/boards/mach-lboxre2/setup.c
index 79b4e0d77b71..6660622aa457 100644
--- a/arch/sh/boards/mach-lboxre2/setup.c
+++ b/arch/sh/boards/mach-lboxre2/setup.c
@@ -79,6 +79,5 @@ device_initcall(lboxre2_devices_setup);
*/
static struct sh_machine_vector mv_lboxre2 __initmv = {
.mv_name = "L-BOX RE2",
- .mv_nr_irqs = 72,
.mv_init_irq = init_lboxre2_IRQ,
};
diff --git a/arch/sh/boards/mach-microdev/setup.c b/arch/sh/boards/mach-microdev/setup.c
index d8a747291e03..6c66ee4d842b 100644
--- a/arch/sh/boards/mach-microdev/setup.c
+++ b/arch/sh/boards/mach-microdev/setup.c
@@ -194,7 +194,6 @@ device_initcall(microdev_devices_setup);
*/
static struct sh_machine_vector mv_sh4202_microdev __initmv = {
.mv_name = "SH4-202 MicroDev",
- .mv_nr_irqs = 72,
.mv_ioport_map = microdev_ioport_map,
.mv_init_irq = init_microdev_irq,
};
diff --git a/arch/sh/boards/mach-sdk7780/setup.c b/arch/sh/boards/mach-sdk7780/setup.c
index 4da38db4b5fe..2241659c3299 100644
--- a/arch/sh/boards/mach-sdk7780/setup.c
+++ b/arch/sh/boards/mach-sdk7780/setup.c
@@ -94,7 +94,6 @@ static void __init sdk7780_setup(char **cmdline_p)
static struct sh_machine_vector mv_se7780 __initmv = {
.mv_name = "Renesas SDK7780-R3" ,
.mv_setup = sdk7780_setup,
- .mv_nr_irqs = 111,
.mv_init_irq = init_sdk7780_IRQ,
};
diff --git a/arch/sh/boards/mach-se/7206/setup.c b/arch/sh/boards/mach-se/7206/setup.c
index 8ab8330e3fd1..68883ec95682 100644
--- a/arch/sh/boards/mach-se/7206/setup.c
+++ b/arch/sh/boards/mach-se/7206/setup.c
@@ -90,7 +90,6 @@ static int se7206_mode_pins(void)
static struct sh_machine_vector mv_se __initmv = {
.mv_name = "SolutionEngine",
- .mv_nr_irqs = 256,
.mv_init_irq = init_se7206_IRQ,
.mv_mode_pins = se7206_mode_pins,
};
diff --git a/arch/sh/boards/mach-se/770x/setup.c b/arch/sh/boards/mach-se/770x/setup.c
index 31330c65c0ce..9759d6ba7ffb 100644
--- a/arch/sh/boards/mach-se/770x/setup.c
+++ b/arch/sh/boards/mach-se/770x/setup.c
@@ -184,16 +184,5 @@ device_initcall(se_devices_setup);
static struct sh_machine_vector mv_se __initmv = {
.mv_name = "SolutionEngine",
.mv_setup = smsc_setup,
-#if defined(CONFIG_CPU_SH4)
- .mv_nr_irqs = 48,
-#elif defined(CONFIG_CPU_SUBTYPE_SH7708)
- .mv_nr_irqs = 32,
-#elif defined(CONFIG_CPU_SUBTYPE_SH7709)
- .mv_nr_irqs = 61,
-#elif defined(CONFIG_CPU_SUBTYPE_SH7705)
- .mv_nr_irqs = 86,
-#elif defined(CONFIG_CPU_SUBTYPE_SH7710) || defined(CONFIG_CPU_SUBTYPE_SH7712)
- .mv_nr_irqs = 104,
-#endif
.mv_init_irq = init_se_IRQ,
};
diff --git a/arch/sh/boards/mach-se/7721/setup.c b/arch/sh/boards/mach-se/7721/setup.c
index 7416ad7ee53a..a0b3dba34ebf 100644
--- a/arch/sh/boards/mach-se/7721/setup.c
+++ b/arch/sh/boards/mach-se/7721/setup.c
@@ -92,6 +92,5 @@ static void __init se7721_setup(char **cmdline_p)
struct sh_machine_vector mv_se7721 __initmv = {
.mv_name = "Solution Engine 7721",
.mv_setup = se7721_setup,
- .mv_nr_irqs = 109,
.mv_init_irq = init_se7721_IRQ,
};
diff --git a/arch/sh/boards/mach-se/7724/setup.c b/arch/sh/boards/mach-se/7724/setup.c
index 479cdf876fda..dd931e36daf8 100644
--- a/arch/sh/boards/mach-se/7724/setup.c
+++ b/arch/sh/boards/mach-se/7724/setup.c
@@ -929,5 +929,4 @@ device_initcall(devices_setup);
static struct sh_machine_vector mv_ms7724se __initmv = {
.mv_name = "ms7724se",
.mv_init_irq = init_se7724_IRQ,
- .mv_nr_irqs = SE7724_FPGA_IRQ_BASE + SE7724_FPGA_IRQ_NR,
};
diff --git a/arch/sh/boards/mach-se/7751/setup.c b/arch/sh/boards/mach-se/7751/setup.c
index 4ed60c5e221f..820f4e7ba0d2 100644
--- a/arch/sh/boards/mach-se/7751/setup.c
+++ b/arch/sh/boards/mach-se/7751/setup.c
@@ -55,6 +55,5 @@ device_initcall(se7751_devices_setup);
*/
static struct sh_machine_vector mv_7751se __initmv = {
.mv_name = "7751 SolutionEngine",
- .mv_nr_irqs = 72,
.mv_init_irq = init_7751se_IRQ,
};
diff --git a/arch/sh/boards/mach-se/7780/setup.c b/arch/sh/boards/mach-se/7780/setup.c
index 6f7c207138e1..ae5a1d84fdf8 100644
--- a/arch/sh/boards/mach-se/7780/setup.c
+++ b/arch/sh/boards/mach-se/7780/setup.c
@@ -110,6 +110,5 @@ static void __init se7780_setup(char **cmdline_p)
static struct sh_machine_vector mv_se7780 __initmv = {
.mv_name = "Solution Engine 7780" ,
.mv_setup = se7780_setup ,
- .mv_nr_irqs = 111 ,
.mv_init_irq = init_se7780_IRQ,
};
diff --git a/arch/sh/boards/mach-se/board-se7619.c b/arch/sh/boards/mach-se/board-se7619.c
index 82b6d4a5dc02..958bcd7aacc5 100644
--- a/arch/sh/boards/mach-se/board-se7619.c
+++ b/arch/sh/boards/mach-se/board-se7619.c
@@ -22,6 +22,5 @@ static int se7619_mode_pins(void)
static struct sh_machine_vector mv_se __initmv = {
.mv_name = "SolutionEngine",
- .mv_nr_irqs = 108,
.mv_mode_pins = se7619_mode_pins,
};
diff --git a/arch/sh/boards/mach-sh03/setup.c b/arch/sh/boards/mach-sh03/setup.c
index d4f79b2a6514..f582dab59343 100644
--- a/arch/sh/boards/mach-sh03/setup.c
+++ b/arch/sh/boards/mach-sh03/setup.c
@@ -101,6 +101,5 @@ device_initcall(sh03_devices_setup);
static struct sh_machine_vector mv_sh03 __initmv = {
.mv_name = "Interface (CTP/PCI-SH03)",
.mv_setup = sh03_setup,
- .mv_nr_irqs = 48,
.mv_init_irq = init_sh03_IRQ,
};
diff --git a/arch/sh/boards/mach-sh7763rdp/setup.c b/arch/sh/boards/mach-sh7763rdp/setup.c
index 36e8b88cd04e..b7c75298dfb5 100644
--- a/arch/sh/boards/mach-sh7763rdp/setup.c
+++ b/arch/sh/boards/mach-sh7763rdp/setup.c
@@ -214,6 +214,5 @@ static void __init sh7763rdp_setup(char **cmdline_p)
static struct sh_machine_vector mv_sh7763rdp __initmv = {
.mv_name = "sh7763drp",
.mv_setup = sh7763rdp_setup,
- .mv_nr_irqs = 112,
.mv_init_irq = init_sh7763rdp_IRQ,
};
diff --git a/arch/sh/include/asm/irq.h b/arch/sh/include/asm/irq.h
index 2a62017eb275..0e4f532e4737 100644
--- a/arch/sh/include/asm/irq.h
+++ b/arch/sh/include/asm/irq.h
@@ -5,12 +5,15 @@
#include <asm/machvec.h>
/*
- * A sane default based on a reasonable vector table size, platforms are
- * advised to cap this at the hard limit that they're interested in
- * through the machvec.
+ * Only legacy non-sparseirq platforms have to set a reasonably sane
+ * value here. sparseirq platforms allocate their irq_descs on the fly,
+ * so will expand automatically based on the number of registered IRQs.
*/
-#define NR_IRQS 512
-#define NR_IRQS_LEGACY 8 /* Legacy external IRQ0-7 */
+#ifdef CONFIG_SPARSE_IRQ
+# define NR_IRQS 8
+#else
+# define NR_IRQS 512
+#endif
/*
* This is a special IRQ number for indicating that no IRQ has been
diff --git a/arch/sh/include/asm/machvec.h b/arch/sh/include/asm/machvec.h
index 57c5c3d0f39f..eb9c20d971dd 100644
--- a/arch/sh/include/asm/machvec.h
+++ b/arch/sh/include/asm/machvec.h
@@ -17,7 +17,6 @@
struct sh_machine_vector {
void (*mv_setup)(char **cmdline_p);
const char *mv_name;
- int mv_nr_irqs;
int (*mv_irq_demux)(int irq);
void (*mv_init_irq)(void);
diff --git a/arch/sh/kernel/irq.c b/arch/sh/kernel/irq.c
index a3ee91971129..dadce735f746 100644
--- a/arch/sh/kernel/irq.c
+++ b/arch/sh/kernel/irq.c
@@ -234,8 +234,10 @@ void __init init_IRQ(void)
#ifdef CONFIG_SPARSE_IRQ
int __init arch_probe_nr_irqs(void)
{
- nr_irqs = sh_mv.mv_nr_irqs;
- return NR_IRQS_LEGACY;
+ /*
+ * No pre-allocated IRQs.
+ */
+ return 0;
}
#endif
diff --git a/arch/sh/kernel/machvec.c b/arch/sh/kernel/machvec.c
index 3d722e49db08..ec05f491c347 100644
--- a/arch/sh/kernel/machvec.c
+++ b/arch/sh/kernel/machvec.c
@@ -121,7 +121,4 @@ void __init sh_mv_setup(void)
mv_set(irq_demux);
mv_set(mode_pins);
mv_set(mem_init);
-
- if (!sh_mv.mv_nr_irqs)
- sh_mv.mv_nr_irqs = NR_IRQS;
}