From 97dcb82de6cc99a5669eb8e342efc24cceb1e77e Mon Sep 17 00:00:00 2001 From: Atsushi Nemoto Date: Mon, 8 Jan 2007 02:14:29 +0900 Subject: [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 Signed-off-by: Ralf Baechle --- arch/mips/mips-boards/malta/malta_int.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'arch/mips/mips-boards/malta') diff --git a/arch/mips/mips-boards/malta/malta_int.c b/arch/mips/mips-boards/malta/malta_int.c index 90ad5bf3e2f1..d9ddb170e595 100644 --- a/arch/mips/mips-boards/malta/malta_int.c +++ b/arch/mips/mips-boards/malta/malta_int.c @@ -310,7 +310,7 @@ void __init arch_init_irq(void) init_i8259_irqs(); if (!cpu_has_veic) - mips_cpu_irq_init (MIPSCPU_INT_BASE); + mips_cpu_irq_init(); switch(mips_revision_corid) { case MIPS_REVISION_CORID_CORE_MSC: -- cgit v1.2.3