diff options
| author | Atsushi Nemoto <anemo@mba.ocn.ne.jp> | 2007-01-07 18:14:29 +0100 |
|---|---|---|
| committer | Ralf Baechle <ralf@linux-mips.org> | 2007-02-06 17:53:08 +0100 |
| commit | 97dcb82de6cc99a5669eb8e342efc24cceb1e77e (patch) | |
| tree | e195fd57deda8d38652c746c04a7c374cdf951a0 /arch/mips/dec | |
| parent | [MIPS] Remove unused rm9k_cpu_irq_disable() (diff) | |
| download | linux-97dcb82de6cc99a5669eb8e342efc24cceb1e77e.tar.xz linux-97dcb82de6cc99a5669eb8e342efc24cceb1e77e.zip | |
[MIPS] Define MIPS_CPU_IRQ_BASE in generic header
The irq_base for {mips,rm7k,rm9k}_cpu_irq_init() are constant on all
platforms and are same value on most platforms (0 or 16, depends on
CONFIG_I8259). Define them in asm-mips/mach-generic/irq.h and make
them customizable. This will save a few cycle on each CPU interrupt.
A good side effect is removing some dependencies to MALTA in generic
SMTC code.
Although MIPS_CPU_IRQ_BASE is customizable, this patch changes irq
mappings on DDB5477, EMMA2RH and MIPS_SIM, since really customizing
them might cause some header dependency problem and there seems no
good reason to customize it. So currently only VR41XX is using custom
MIPS_CPU_IRQ_BASE value, which is 0 regardless of CONFIG_I8259.
Testing this patch on those platforms is greatly appreciated. Thank
you.
Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Diffstat (limited to 'arch/mips/dec')
| -rw-r--r-- | arch/mips/dec/setup.c | 12 |
1 files changed, 6 insertions, 6 deletions
diff --git a/arch/mips/dec/setup.c b/arch/mips/dec/setup.c index d34032ac492a..1058e2f409bb 100644 --- a/arch/mips/dec/setup.c +++ b/arch/mips/dec/setup.c @@ -234,7 +234,7 @@ static void __init dec_init_kn01(void) memcpy(&cpu_mask_nr_tbl, &kn01_cpu_mask_nr_tbl, sizeof(kn01_cpu_mask_nr_tbl)); - mips_cpu_irq_init(DEC_CPU_IRQ_BASE); + mips_cpu_irq_init(); } /* dec_init_kn01 */ @@ -309,7 +309,7 @@ static void __init dec_init_kn230(void) memcpy(&cpu_mask_nr_tbl, &kn230_cpu_mask_nr_tbl, sizeof(kn230_cpu_mask_nr_tbl)); - mips_cpu_irq_init(DEC_CPU_IRQ_BASE); + mips_cpu_irq_init(); } /* dec_init_kn230 */ @@ -403,7 +403,7 @@ static void __init dec_init_kn02(void) memcpy(&asic_mask_nr_tbl, &kn02_asic_mask_nr_tbl, sizeof(kn02_asic_mask_nr_tbl)); - mips_cpu_irq_init(DEC_CPU_IRQ_BASE); + mips_cpu_irq_init(); init_kn02_irqs(KN02_IRQ_BASE); } /* dec_init_kn02 */ @@ -504,7 +504,7 @@ static void __init dec_init_kn02ba(void) memcpy(&asic_mask_nr_tbl, &kn02ba_asic_mask_nr_tbl, sizeof(kn02ba_asic_mask_nr_tbl)); - mips_cpu_irq_init(DEC_CPU_IRQ_BASE); + mips_cpu_irq_init(); init_ioasic_irqs(IO_IRQ_BASE); } /* dec_init_kn02ba */ @@ -601,7 +601,7 @@ static void __init dec_init_kn02ca(void) memcpy(&asic_mask_nr_tbl, &kn02ca_asic_mask_nr_tbl, sizeof(kn02ca_asic_mask_nr_tbl)); - mips_cpu_irq_init(DEC_CPU_IRQ_BASE); + mips_cpu_irq_init(); init_ioasic_irqs(IO_IRQ_BASE); } /* dec_init_kn02ca */ @@ -702,7 +702,7 @@ static void __init dec_init_kn03(void) memcpy(&asic_mask_nr_tbl, &kn03_asic_mask_nr_tbl, sizeof(kn03_asic_mask_nr_tbl)); - mips_cpu_irq_init(DEC_CPU_IRQ_BASE); + mips_cpu_irq_init(); init_ioasic_irqs(IO_IRQ_BASE); } /* dec_init_kn03 */ |