From 66bcaf0bde100a4b54b82fc6fea6ceee2212ffb4 Mon Sep 17 00:00:00 2001 From: Thomas Gleixner Date: Thu, 20 Aug 2009 09:59:09 +0200 Subject: [PATCH] x86: Move irq_init to x86_init_ops irq_init is overridden by x86_quirks and by paravirts. Unify the whole mess and make it an unconditional x86_init_ops function which defaults to the standard function and can be overridden by the early platform code. Signed-off-by: Thomas Gleixner --- arch/x86/include/asm/irq.h | 1 - arch/x86/include/asm/paravirt_types.h | 2 -- arch/x86/include/asm/setup.h | 3 --- arch/x86/include/asm/x86_init.h | 2 ++ arch/x86/kernel/apic/numaq_32.c | 1 - arch/x86/kernel/irqinit.c | 12 ++++-------- arch/x86/kernel/paravirt.c | 6 ------ arch/x86/kernel/setup.c | 17 ----------------- arch/x86/kernel/visws_quirks.c | 1 - arch/x86/kernel/x86_init.c | 1 + arch/x86/lguest/boot.c | 2 +- arch/x86/xen/irq.c | 5 +++-- 12 files changed, 11 insertions(+), 42 deletions(-) diff --git a/arch/x86/include/asm/irq.h b/arch/x86/include/asm/irq.h index 8fe2782a2537..ddda6cbed6f4 100644 --- a/arch/x86/include/asm/irq.h +++ b/arch/x86/include/asm/irq.h @@ -37,7 +37,6 @@ extern void fixup_irqs(void); #endif extern void (*generic_interrupt_extension)(void); -extern void init_IRQ(void); extern void native_init_IRQ(void); extern bool handle_irq(unsigned irq, struct pt_regs *regs); diff --git a/arch/x86/include/asm/paravirt_types.h b/arch/x86/include/asm/paravirt_types.h index 6d668968b6b8..25922afb6347 100644 --- a/arch/x86/include/asm/paravirt_types.h +++ b/arch/x86/include/asm/paravirt_types.h @@ -201,8 +201,6 @@ struct pv_cpu_ops { }; struct pv_irq_ops { - void (*init_IRQ)(void); - /* * Get/set interrupt state. save_fl and restore_fl are only * expected to use X86_EFLAGS_IF; all other bits diff --git a/arch/x86/include/asm/setup.h b/arch/x86/include/asm/setup.h index 66a319709d66..404086f9411c 100644 --- a/arch/x86/include/asm/setup.h +++ b/arch/x86/include/asm/setup.h @@ -16,12 +16,9 @@ struct x86_quirks { int (*arch_pre_time_init)(void); int (*arch_time_init)(void); - int (*arch_intr_init)(void); int (*arch_trap_init)(void); }; -extern void x86_quirk_intr_init(void); - extern void x86_quirk_trap_init(void); extern void x86_quirk_pre_time_init(void); diff --git a/arch/x86/include/asm/x86_init.h b/arch/x86/include/asm/x86_init.h index 65e3394c77fd..8d7be65ccf7f 100644 --- a/arch/x86/include/asm/x86_init.h +++ b/arch/x86/include/asm/x86_init.h @@ -47,9 +47,11 @@ struct x86_init_resources { * struct x86_init_irqs - platform specific interrupt setup * @pre_vector_init: init code to run before interrupt vectors * are set up. + * @intr_init: interrupt init code */ struct x86_init_irqs { void (*pre_vector_init)(void); + void (*intr_init)(void); }; /** diff --git a/arch/x86/kernel/apic/numaq_32.c b/arch/x86/kernel/apic/numaq_32.c index ec8b3113716d..eafd341e42dd 100644 --- a/arch/x86/kernel/apic/numaq_32.c +++ b/arch/x86/kernel/apic/numaq_32.c @@ -265,7 +265,6 @@ static void __init smp_read_mpc_oem(struct mpc_table *mpc) static struct x86_quirks numaq_x86_quirks __initdata = { .arch_pre_time_init = numaq_pre_time_init, .arch_time_init = NULL, - .arch_intr_init = NULL, .arch_trap_init = NULL, }; diff --git a/arch/x86/kernel/irqinit.c b/arch/x86/kernel/irqinit.c index acdf088c7583..e0142cda2394 100644 --- a/arch/x86/kernel/irqinit.c +++ b/arch/x86/kernel/irqinit.c @@ -140,8 +140,10 @@ void __init init_ISA_irqs(void) } } -/* Overridden in paravirt.c */ -void init_IRQ(void) __attribute__((weak, alias("native_init_IRQ"))); +void init_IRQ(void) +{ + x86_init.irqs.intr_init(); +} static void __init smp_intr_init(void) { @@ -237,12 +239,6 @@ void __init native_init_IRQ(void) setup_irq(2, &irq2); #ifdef CONFIG_X86_32 - /* - * Call quirks after call gates are initialised (usually add in - * the architecture specific gates): - */ - x86_quirk_intr_init(); - /* * External FPU? Set up irq13 if so, for * original braindamaged IBM FERR coupling. diff --git a/arch/x86/kernel/paravirt.c b/arch/x86/kernel/paravirt.c index 532c9a2626c7..d76bfbec71ae 100644 --- a/arch/x86/kernel/paravirt.c +++ b/arch/x86/kernel/paravirt.c @@ -183,11 +183,6 @@ unsigned paravirt_patch_insns(void *insnbuf, unsigned len, return insn_len; } -void init_IRQ(void) -{ - pv_irq_ops.init_IRQ(); -} - static void native_flush_tlb(void) { __native_flush_tlb(); @@ -328,7 +323,6 @@ struct pv_time_ops pv_time_ops = { }; struct pv_irq_ops pv_irq_ops = { - .init_IRQ = native_init_IRQ, .save_fl = __PV_IS_CALLEE_SAVE(native_save_fl), .restore_fl = __PV_IS_CALLEE_SAVE(native_restore_fl), .irq_disable = __PV_IS_CALLEE_SAVE(native_irq_disable), diff --git a/arch/x86/kernel/setup.c b/arch/x86/kernel/setup.c index 54043cb7ba68..d3da0f7333f7 100644 --- a/arch/x86/kernel/setup.c +++ b/arch/x86/kernel/setup.c @@ -1020,23 +1020,6 @@ void __init setup_arch(char **cmdline_p) #ifdef CONFIG_X86_32 -/** - * x86_quirk_intr_init - post gate setup interrupt initialisation - * - * Description: - * Fill in any interrupts that may have been left out by the general - * init_IRQ() routine. interrupts having to do with the machine rather - * than the devices on the I/O bus (like APIC interrupts in intel MP - * systems) are started here. - **/ -void __init x86_quirk_intr_init(void) -{ - if (x86_quirks->arch_intr_init) { - if (x86_quirks->arch_intr_init()) - return; - } -} - /** * x86_quirk_trap_init - initialise system specific traps * diff --git a/arch/x86/kernel/visws_quirks.c b/arch/x86/kernel/visws_quirks.c index 1d6309d70dfa..a49013716da9 100644 --- a/arch/x86/kernel/visws_quirks.c +++ b/arch/x86/kernel/visws_quirks.c @@ -228,7 +228,6 @@ static int visws_trap_init(void); static struct x86_quirks visws_x86_quirks __initdata = { .arch_time_init = visws_time_init, - .arch_intr_init = NULL, .arch_trap_init = visws_trap_init, }; diff --git a/arch/x86/kernel/x86_init.c b/arch/x86/kernel/x86_init.c index f2abe2136da1..8cb59332e3b4 100644 --- a/arch/x86/kernel/x86_init.c +++ b/arch/x86/kernel/x86_init.c @@ -39,5 +39,6 @@ struct __initdata x86_init_ops x86_init = { .irqs = { .pre_vector_init = init_ISA_irqs, + .intr_init = native_init_IRQ, }, }; diff --git a/arch/x86/lguest/boot.c b/arch/x86/lguest/boot.c index 11445c176de6..1ff986511f1d 100644 --- a/arch/x86/lguest/boot.c +++ b/arch/x86/lguest/boot.c @@ -1262,7 +1262,6 @@ __init void lguest_init(void) */ /* Interrupt-related operations */ - pv_irq_ops.init_IRQ = lguest_init_IRQ; pv_irq_ops.save_fl = PV_CALLEE_SAVE(save_fl); pv_irq_ops.restore_fl = __PV_IS_CALLEE_SAVE(lg_restore_fl); pv_irq_ops.irq_disable = PV_CALLEE_SAVE(irq_disable); @@ -1325,6 +1324,7 @@ __init void lguest_init(void) pv_time_ops.get_tsc_khz = lguest_tsc_khz; x86_init.resources.memory_setup = lguest_memory_setup; + x86_init.irqs.intr_init = lguest_init_IRQ; /* * Now is a good time to look at the implementations of these functions diff --git a/arch/x86/xen/irq.c b/arch/x86/xen/irq.c index cfd17799bd6d..9d30105a0c4a 100644 --- a/arch/x86/xen/irq.c +++ b/arch/x86/xen/irq.c @@ -1,5 +1,7 @@ #include +#include + #include #include #include @@ -112,8 +114,6 @@ static void xen_halt(void) } static const struct pv_irq_ops xen_irq_ops __initdata = { - .init_IRQ = xen_init_IRQ, - .save_fl = PV_CALLEE_SAVE(xen_save_fl), .restore_fl = PV_CALLEE_SAVE(xen_restore_fl), .irq_disable = PV_CALLEE_SAVE(xen_irq_disable), @@ -129,4 +129,5 @@ static const struct pv_irq_ops xen_irq_ops __initdata = { void __init xen_init_irq_ops() { pv_irq_ops = xen_irq_ops; + x86_init.irqs.intr_init = xen_init_IRQ; } -- GitLab