From 15f304b664c0d0a3e76ed3a9ce3615a86908babe Mon Sep 17 00:00:00 2001 From: Ralf Baechle Date: Wed, 1 Jun 2011 19:04:59 +0100 Subject: i8253: Consolidate all kernel definitions of i8253_lock Move them to drivers/clocksource/i8253.c and remove the implementations in arch/ [ tglx: Avoid the extra file in lib - folded arch patches in. The export will become conditional in a later step ] Signed-off-by: Ralf Baechle Link: http://lkml.kernel.org/r/20110601180610.221426078@duck.linux-mips.net Cc: Russell King Signed-off-by: Thomas Gleixner --- arch/x86/Kconfig | 1 + 1 file changed, 1 insertion(+) (limited to 'arch/x86/Kconfig') diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig index da349723d411..e6060a1c1b58 100644 --- a/arch/x86/Kconfig +++ b/arch/x86/Kconfig @@ -70,6 +70,7 @@ config X86 select IRQ_FORCED_THREADING select USE_GENERIC_SMP_HELPERS if SMP select HAVE_BPF_JIT if (X86_64 && NET) + select I8253_LOCK config INSTRUCTION_DECODER def_bool (KPROBES || PERF_EVENTS) -- cgit v1.2.3 From 8761f1ab717cac0616f8cf7ec589ae021c739113 Mon Sep 17 00:00:00 2001 From: Ralf Baechle Date: Wed, 1 Jun 2011 19:05:09 +0100 Subject: pcspkr: Cleanup Kconfig dependencies Lenghty lists of the kind "depends on ARCH1 || ARCH2 ... || ARCH123" are usually either wrong or too coarse grained. Or plain an ugly sin. [ tglx: Fixed up amigaone ] Signed-off-by: Ralf Baechle Cc: Richard Henderson Cc: Ivan Kokshaysky Cc: Matt Turner Acked-by: Benjamin Herrenschmidt Cc: Paul Mackerras Cc: linux-alpha@vger.kernel.org Cc: linux-mips@linux-mips.org Cc: linuxppc-dev@lists.ozlabs.org Cc: Gerhard Pircher Link: http://lkml.kernel.org/r/20110601180610.984881988@duck.linux-mips.net Signed-off-by: Thomas Gleixner --- arch/alpha/Kconfig | 1 + arch/mips/Kconfig | 1 + arch/powerpc/platforms/amigaone/Kconfig | 2 +- arch/powerpc/platforms/chrp/Kconfig | 1 + arch/powerpc/platforms/prep/Kconfig | 1 + arch/powerpc/platforms/pseries/Kconfig | 1 + arch/x86/Kconfig | 1 + init/Kconfig | 6 +++++- 8 files changed, 12 insertions(+), 2 deletions(-) (limited to 'arch/x86/Kconfig') diff --git a/arch/alpha/Kconfig b/arch/alpha/Kconfig index 60219bf94198..ca2da8da6e9c 100644 --- a/arch/alpha/Kconfig +++ b/arch/alpha/Kconfig @@ -6,6 +6,7 @@ config ALPHA select HAVE_OPROFILE select HAVE_SYSCALL_WRAPPERS select HAVE_IRQ_WORK + select HAVE_PCSPKR_PLATFORM select HAVE_PERF_EVENTS select HAVE_DMA_ATTRS select HAVE_GENERIC_HARDIRQS diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig index 653da62d0682..bf35bb6b3bc1 100644 --- a/arch/mips/Kconfig +++ b/arch/mips/Kconfig @@ -5,6 +5,7 @@ config MIPS select HAVE_IDE select HAVE_OPROFILE select HAVE_IRQ_WORK + select HAVE_PCSPKR_PLATFORM select HAVE_PERF_EVENTS select PERF_USE_VMALLOC select HAVE_ARCH_KGDB diff --git a/arch/powerpc/platforms/amigaone/Kconfig b/arch/powerpc/platforms/amigaone/Kconfig index 022476717718..128de25cc284 100644 --- a/arch/powerpc/platforms/amigaone/Kconfig +++ b/arch/powerpc/platforms/amigaone/Kconfig @@ -8,7 +8,7 @@ config AMIGAONE select NOT_COHERENT_CACHE select CHECK_CACHE_COHERENCY select DEFAULT_UIMAGE - select PCSPKR_PLATFORM + select HAVE_PCSPKR_PLATFORM help Select AmigaOne for the following machines: - AmigaOne SE/Teron CX (G3 only) diff --git a/arch/powerpc/platforms/chrp/Kconfig b/arch/powerpc/platforms/chrp/Kconfig index bc0b0efdc5fe..d3cdab582c5d 100644 --- a/arch/powerpc/platforms/chrp/Kconfig +++ b/arch/powerpc/platforms/chrp/Kconfig @@ -1,6 +1,7 @@ config PPC_CHRP bool "Common Hardware Reference Platform (CHRP) based machines" depends on 6xx + select HAVE_PCSPKR_PLATFORM select MPIC select PPC_I8259 select PPC_INDIRECT_PCI diff --git a/arch/powerpc/platforms/prep/Kconfig b/arch/powerpc/platforms/prep/Kconfig index bf8330ef2e76..f0536c7cda9f 100644 --- a/arch/powerpc/platforms/prep/Kconfig +++ b/arch/powerpc/platforms/prep/Kconfig @@ -1,6 +1,7 @@ config PPC_PREP bool "PowerPC Reference Platform (PReP) based machines" depends on 6xx && BROKEN + select HAVE_PCSPKR_PLATFORM select MPIC select PPC_I8259 select PPC_INDIRECT_PCI diff --git a/arch/powerpc/platforms/pseries/Kconfig b/arch/powerpc/platforms/pseries/Kconfig index 71af4c5d6c05..05cf4769b88c 100644 --- a/arch/powerpc/platforms/pseries/Kconfig +++ b/arch/powerpc/platforms/pseries/Kconfig @@ -1,6 +1,7 @@ config PPC_PSERIES depends on PPC64 && PPC_BOOK3S bool "IBM pSeries & new (POWER5-based) iSeries" + select HAVE_PCSPKR_PLATFORM select MPIC select PCI_MSI select PPC_XICS diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig index e6060a1c1b58..2dd95b55567b 100644 --- a/arch/x86/Kconfig +++ b/arch/x86/Kconfig @@ -20,6 +20,7 @@ config X86 select HAVE_UNSTABLE_SCHED_CLOCK select HAVE_IDE select HAVE_OPROFILE + select HAVE_PCSPKR_PLATFORM select HAVE_PERF_EVENTS select HAVE_IRQ_WORK select HAVE_IOREMAP_PROT diff --git a/init/Kconfig b/init/Kconfig index 2d2ef447a9ab..6f0e9d50fda9 100644 --- a/init/Kconfig +++ b/init/Kconfig @@ -999,15 +999,19 @@ config ELF_CORE help Enable support for generating core dumps. Disabling saves about 4k. + config PCSPKR_PLATFORM bool "Enable PC-Speaker support" if EXPERT - depends on ALPHA || X86 || MIPS || PPC_PREP || PPC_CHRP || PPC_PSERIES + depends on HAVE_PCSPKR_PLATFORM select I8253_LOCK default y help This option allows to disable the internal PC-Speaker support, saving some memory. +config HAVE_PCSPKR_PLATFORM + bool + config BASE_FULL default y bool "Enable full-sized data structures for core" if EXPERT -- cgit v1.2.3 From 0a779c571314b7951ff12edac80aa0cbe7c12b6e Mon Sep 17 00:00:00 2001 From: Thomas Gleixner Date: Thu, 9 Jun 2011 13:08:26 +0000 Subject: x86: Use common i8253 clockevent Signed-off-by: Thomas Gleixner Cc: Russell King Cc: Ralf Baechle Cc: John Stultz Link: http://lkml.kernel.org/r/20110609130622.026152527@linutronix.de --- arch/x86/Kconfig | 2 +- arch/x86/kernel/i8253.c | 93 ++----------------------------------------------- 2 files changed, 4 insertions(+), 91 deletions(-) (limited to 'arch/x86/Kconfig') diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig index 2dd95b55567b..26a14b4bdd14 100644 --- a/arch/x86/Kconfig +++ b/arch/x86/Kconfig @@ -71,7 +71,7 @@ config X86 select IRQ_FORCED_THREADING select USE_GENERIC_SMP_HELPERS if SMP select HAVE_BPF_JIT if (X86_64 && NET) - select I8253_LOCK + select CLKEVT_I8253 config INSTRUCTION_DECODER def_bool (KPROBES || PERF_EVENTS) diff --git a/arch/x86/kernel/i8253.c b/arch/x86/kernel/i8253.c index 5783e6de2079..f2b96de3c7c1 100644 --- a/arch/x86/kernel/i8253.c +++ b/arch/x86/kernel/i8253.c @@ -3,15 +3,9 @@ * */ #include -#include -#include -#include #include #include -#include #include -#include -#include #include #include @@ -23,91 +17,10 @@ */ struct clock_event_device *global_clock_event; -/* - * Initialize the PIT timer. - * - * This is also called after resume to bring the PIT into operation again. - */ -static void init_pit_timer(enum clock_event_mode mode, - struct clock_event_device *evt) -{ - raw_spin_lock(&i8253_lock); - - switch (mode) { - case CLOCK_EVT_MODE_PERIODIC: - /* binary, mode 2, LSB/MSB, ch 0 */ - outb_pit(0x34, PIT_MODE); - outb_pit(LATCH & 0xff , PIT_CH0); /* LSB */ - outb_pit(LATCH >> 8 , PIT_CH0); /* MSB */ - break; - - case CLOCK_EVT_MODE_SHUTDOWN: - case CLOCK_EVT_MODE_UNUSED: - if (evt->mode == CLOCK_EVT_MODE_PERIODIC || - evt->mode == CLOCK_EVT_MODE_ONESHOT) { - outb_pit(0x30, PIT_MODE); - outb_pit(0, PIT_CH0); - outb_pit(0, PIT_CH0); - } - break; - - case CLOCK_EVT_MODE_ONESHOT: - /* One shot setup */ - outb_pit(0x38, PIT_MODE); - break; - - case CLOCK_EVT_MODE_RESUME: - /* Nothing to do here */ - break; - } - raw_spin_unlock(&i8253_lock); -} - -/* - * Program the next event in oneshot mode - * - * Delta is given in PIT ticks - */ -static int pit_next_event(unsigned long delta, struct clock_event_device *evt) -{ - raw_spin_lock(&i8253_lock); - outb_pit(delta & 0xff , PIT_CH0); /* LSB */ - outb_pit(delta >> 8 , PIT_CH0); /* MSB */ - raw_spin_unlock(&i8253_lock); - - return 0; -} - -/* - * On UP the PIT can serve all of the possible timer functions. On SMP systems - * it can be solely used for the global tick. - * - * The profiling and update capabilities are switched off once the local apic is - * registered. This mechanism replaces the previous #ifdef LOCAL_APIC - - * !using_apic_timer decisions in do_timer_interrupt_hook() - */ -static struct clock_event_device pit_ce = { - .name = "pit", - .features = CLOCK_EVT_FEAT_PERIODIC | CLOCK_EVT_FEAT_ONESHOT, - .set_mode = init_pit_timer, - .set_next_event = pit_next_event, - .irq = 0, -}; - -/* - * Initialize the conversion factor and the min/max deltas of the clock event - * structure and register the clock event source with the framework. - */ void __init setup_pit_timer(void) { - /* - * Start pit with the boot cpu mask and make it global after the - * IO_APIC has been initialized. - */ - pit_ce.cpumask = cpumask_of(smp_processor_id()); - - clockevents_config_and_register(&pit_ce, CLOCK_TICK_RATE, 0xF, 0x7FFF); - global_clock_event = &pit_ce; + clockevent_i8253_init(true); + global_clock_event = &i8253_clockevent; } #ifndef CONFIG_X86_64 @@ -121,7 +34,7 @@ static int __init init_pit_clocksource(void) * - when local APIC timer is active (PIT is switched off) */ if (num_possible_cpus() > 1 || is_hpet_enabled() || - pit_ce.mode != CLOCK_EVT_MODE_PERIODIC) + i8253_clockevent.mode != CLOCK_EVT_MODE_PERIODIC) return 0; return clocksource_i8253_init(); -- cgit v1.2.3