From 72eb29951f98f612ba5a5bb8c58c87eaf8fb7351 Mon Sep 17 00:00:00 2001 From: Paul Burton Date: Sat, 12 Aug 2017 21:36:34 -0700 Subject: [PATCH] MIPS: Use mips_gic_present() in place of gic_present In preparation for removing the gic_present global variable, switch to using the mips_gic_present() function instead. For the most part this is a straightforward substitution. In cases which previously wrapped the GIC case in an #ifdef CONFIG_MIPS_GIC that #ifdef has been removed, since mips_gic_present() will return a compile-time constant false allowing the affected code to be optimised out anyway. Signed-off-by: Paul Burton Cc: Jason Cooper Cc: Marc Zyngier Cc: Thomas Gleixner Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/17044/ Signed-off-by: Ralf Baechle --- arch/mips/generic/irq.c | 7 ++++--- arch/mips/kernel/smp-mt.c | 6 ++---- arch/mips/lantiq/irq.c | 4 ---- arch/mips/mti-malta/malta-int.c | 4 ++-- arch/mips/mti-malta/malta-time.c | 19 +++++++++---------- 5 files changed, 17 insertions(+), 23 deletions(-) diff --git a/arch/mips/generic/irq.c b/arch/mips/generic/irq.c index efe359ce2576..2d7bf74179d5 100644 --- a/arch/mips/generic/irq.c +++ b/arch/mips/generic/irq.c @@ -16,6 +16,7 @@ #include #include +#include #include int get_c0_fdc_int(void) @@ -24,7 +25,7 @@ int get_c0_fdc_int(void) if (cpu_has_veic) panic("Unimplemented!"); - else if (gic_present) + else if (mips_gic_present()) mips_cpu_fdc_irq = gic_get_c0_fdc_int(); else if (cp0_fdc_irq >= 0) mips_cpu_fdc_irq = MIPS_CPU_IRQ_BASE + cp0_fdc_irq; @@ -40,7 +41,7 @@ int get_c0_perfcount_int(void) if (cpu_has_veic) panic("Unimplemented!"); - else if (gic_present) + else if (mips_gic_present()) mips_cpu_perf_irq = gic_get_c0_perfcount_int(); else if (cp0_perfcount_irq >= 0) mips_cpu_perf_irq = MIPS_CPU_IRQ_BASE + cp0_perfcount_irq; @@ -56,7 +57,7 @@ unsigned int get_c0_compare_int(void) if (cpu_has_veic) panic("Unimplemented!"); - else if (gic_present) + else if (mips_gic_present()) mips_cpu_timer_irq = gic_get_c0_compare_int(); else mips_cpu_timer_irq = MIPS_CPU_IRQ_BASE + cp0_compare_irq; diff --git a/arch/mips/kernel/smp-mt.c b/arch/mips/kernel/smp-mt.c index 30415a74f312..94ab3276b48c 100644 --- a/arch/mips/kernel/smp-mt.c +++ b/arch/mips/kernel/smp-mt.c @@ -21,7 +21,6 @@ #include #include #include -#include #include #include #include @@ -36,6 +35,7 @@ #include #include #include +#include static void __init smvp_copy_vpe_config(void) { @@ -118,14 +118,12 @@ static void __init smvp_tc_init(unsigned int tc, unsigned int mvpconf0) static void vsmp_init_secondary(void) { -#ifdef CONFIG_MIPS_GIC /* This is Malta specific: IPI,performance and timer interrupts */ - if (gic_present) + if (mips_gic_present()) change_c0_status(ST0_IM, STATUSF_IP2 | STATUSF_IP3 | STATUSF_IP4 | STATUSF_IP5 | STATUSF_IP6 | STATUSF_IP7); else -#endif change_c0_status(ST0_IM, STATUSF_IP0 | STATUSF_IP1 | STATUSF_IP6 | STATUSF_IP7); } diff --git a/arch/mips/lantiq/irq.c b/arch/mips/lantiq/irq.c index 33728b7af426..f0bc3312ed11 100644 --- a/arch/mips/lantiq/irq.c +++ b/arch/mips/lantiq/irq.c @@ -61,10 +61,6 @@ /* we have a cascade of 8 irqs */ #define MIPS_CPU_IRQ_CASCADE 8 -#ifdef CONFIG_MIPS_MT_SMP -int gic_present; -#endif - static int exin_avail; static u32 ltq_eiu_irq[MAX_EIU]; static void __iomem *ltq_icu_membase[MAX_IM]; diff --git a/arch/mips/mti-malta/malta-int.c b/arch/mips/mti-malta/malta-int.c index 2e831f4abfb3..a840e0c1642c 100644 --- a/arch/mips/mti-malta/malta-int.c +++ b/arch/mips/mti-malta/malta-int.c @@ -19,7 +19,6 @@ #include #include #include -#include #include #include #include @@ -31,6 +30,7 @@ #include #include #include +#include #include #include #include @@ -214,7 +214,7 @@ void __init arch_init_irq(void) msc_nr_irqs); } - if (gic_present) { + if (mips_gic_present()) { corehi_irq = MIPS_CPU_IRQ_BASE + MIPSCPU_INT_COREHI; } else if (cpu_has_veic) { set_vi_handler(MSC01E_INT_COREHI, corehi_irqdispatch); diff --git a/arch/mips/mti-malta/malta-time.c b/arch/mips/mti-malta/malta-time.c index f0577469073d..7d53103b085f 100644 --- a/arch/mips/mti-malta/malta-time.c +++ b/arch/mips/mti-malta/malta-time.c @@ -40,6 +40,7 @@ #include #include #include +#include #include #include @@ -85,7 +86,7 @@ static void __init estimate_frequencies(void) local_irq_save(flags); - if (gic_present) + if (mips_gic_present()) clear_gic_config(GIC_CONFIG_COUNTSTOP); /* @@ -95,7 +96,7 @@ static void __init estimate_frequencies(void) while (CMOS_READ(RTC_REG_A) & RTC_UIP); while (!(CMOS_READ(RTC_REG_A) & RTC_UIP)); start = read_c0_count(); - if (gic_present) + if (mips_gic_present()) gicstart = read_gic_counter(); /* Wait for falling edge before reading RTC. */ @@ -105,7 +106,7 @@ static void __init estimate_frequencies(void) /* Read counters again exactly on rising edge of update flag. */ while (!(CMOS_READ(RTC_REG_A) & RTC_UIP)); count = read_c0_count(); - if (gic_present) + if (mips_gic_present()) giccount = read_gic_counter(); /* Wait for falling edge before reading RTC again. */ @@ -128,7 +129,7 @@ static void __init estimate_frequencies(void) count /= secs; mips_hpt_frequency = count; - if (gic_present) { + if (mips_gic_present()) { giccount = div_u64(giccount - gicstart, secs); gic_frequency = giccount; } @@ -154,7 +155,7 @@ int get_c0_fdc_int(void) if (cpu_has_veic) return -1; - else if (gic_present) + else if (mips_gic_present()) return gic_get_c0_fdc_int(); else if (cp0_fdc_irq >= 0) return MIPS_CPU_IRQ_BASE + cp0_fdc_irq; @@ -167,7 +168,7 @@ int get_c0_perfcount_int(void) if (cpu_has_veic) { set_vi_handler(MSC01E_INT_PERFCTR, mips_perf_dispatch); mips_cpu_perf_irq = MSC01E_INT_BASE + MSC01E_INT_PERFCTR; - } else if (gic_present) { + } else if (mips_gic_present()) { mips_cpu_perf_irq = gic_get_c0_perfcount_int(); } else if (cp0_perfcount_irq >= 0) { mips_cpu_perf_irq = MIPS_CPU_IRQ_BASE + cp0_perfcount_irq; @@ -184,7 +185,7 @@ unsigned int get_c0_compare_int(void) if (cpu_has_veic) { set_vi_handler(MSC01E_INT_CPUCTR, mips_timer_dispatch); mips_cpu_timer_irq = MSC01E_INT_BASE + MSC01E_INT_CPUCTR; - } else if (gic_present) { + } else if (mips_gic_present()) { mips_cpu_timer_irq = gic_get_c0_compare_int(); } else { mips_cpu_timer_irq = MIPS_CPU_IRQ_BASE + cp0_compare_irq; @@ -258,8 +259,7 @@ void __init plat_time_init(void) setup_pit_timer(); #endif -#ifdef CONFIG_MIPS_GIC - if (gic_present) { + if (mips_gic_present()) { freq = freqround(gic_frequency, 5000); printk("GIC frequency %d.%02d MHz\n", freq/1000000, (freq%1000000)*100/1000000); @@ -268,5 +268,4 @@ void __init plat_time_init(void) timer_probe(); #endif } -#endif } -- 2.20.1