diff options
Diffstat (limited to 'include')
71 files changed, 1069 insertions, 846 deletions
diff --git a/include/acpi/acinterp.h b/include/acpi/acinterp.h index ce7c9d6..73967c8 100644 --- a/include/acpi/acinterp.h +++ b/include/acpi/acinterp.h @@ -253,7 +253,8 @@ acpi_ex_release_mutex(union acpi_operand_object *obj_desc, void acpi_ex_release_all_mutexes(struct acpi_thread_state *thread); -void acpi_ex_unlink_mutex(union acpi_operand_object *obj_desc); +void acpi_ex_unlink_mutex(union acpi_operand_object *obj_desc, + struct acpi_thread_state *thread); /* * exprep - ACPI AML execution - prep utilities diff --git a/include/acpi/acobject.h b/include/acpi/acobject.h index 04e9735..5206d61 100644 --- a/include/acpi/acobject.h +++ b/include/acpi/acobject.h @@ -155,7 +155,7 @@ struct acpi_object_event { struct acpi_object_mutex { ACPI_OBJECT_COMMON_HEADER u8 sync_level; /* 0-15, specified in Mutex() call */ u16 acquisition_depth; /* Allow multiple Acquires, same thread */ - struct acpi_thread_state *owner_thread; /* Current owner of the mutex */ + acpi_thread_id owner_thread_id; /* Current owner of the mutex */ acpi_mutex os_mutex; /* Actual OS synchronization object */ union acpi_operand_object *prev; /* Link for list of acquired mutexes */ union acpi_operand_object *next; /* Link for list of acquired mutexes */ diff --git a/include/acpi/acpi_drivers.h b/include/acpi/acpi_drivers.h index 4dc8a50..07a5eb0 100644 --- a/include/acpi/acpi_drivers.h +++ b/include/acpi/acpi_drivers.h @@ -105,12 +105,6 @@ int acpi_ec_ecdt_probe(void); int acpi_processor_set_thermal_limit(acpi_handle handle, int type); -/* -------------------------------------------------------------------------- - Hot Keys - -------------------------------------------------------------------------- */ - -extern int acpi_specific_hotkey_enabled; - /*-------------------------------------------------------------------------- Dock Station -------------------------------------------------------------------------- */ @@ -122,10 +116,24 @@ extern int register_hotplug_dock_device(acpi_handle handle, acpi_notify_handler handler, void *context); extern void unregister_hotplug_dock_device(acpi_handle handle); #else -#define is_dock_device(h) (0) -#define register_dock_notifier(nb) (-ENODEV) -#define unregister_dock_notifier(nb) do { } while(0) -#define register_hotplug_dock_device(h1, h2, c) (-ENODEV) -#define unregister_hotplug_dock_device(h) do { } while(0) +static inline int is_dock_device(acpi_handle handle) +{ + return 0; +} +static inline int register_dock_notifier(struct notifier_block *nb) +{ + return -ENODEV; +} +static inline void unregister_dock_notifier(struct notifier_block *nb) +{ +} +static inline int register_hotplug_dock_device(acpi_handle handle, + acpi_notify_handler handler, void *context) +{ + return -ENODEV; +} +static inline void unregister_hotplug_dock_device(acpi_handle handle) +{ +} #endif #endif /*__ACPI_DRIVERS_H__*/ diff --git a/include/acpi/acpiosxf.h b/include/acpi/acpiosxf.h index 781394b..2785058 100644 --- a/include/acpi/acpiosxf.h +++ b/include/acpi/acpiosxf.h @@ -240,12 +240,6 @@ acpi_status acpi_os_validate_address(u8 space_id, acpi_physical_address address, acpi_size length); -u8 acpi_os_readable(void *pointer, acpi_size length); - -#ifdef ACPI_FUTURE_USAGE -u8 acpi_os_writable(void *pointer, acpi_size length); -#endif - u64 acpi_os_get_timer(void); acpi_status acpi_os_signal(u32 function, void *info); diff --git a/include/acpi/processor.h b/include/acpi/processor.h index 7798d2a..916c010 100644 --- a/include/acpi/processor.h +++ b/include/acpi/processor.h @@ -79,6 +79,7 @@ struct acpi_processor_power { u32 bm_activity; int count; struct acpi_processor_cx states[ACPI_PROCESSOR_MAX_POWER]; + int timer_broadcast_on_state; }; /* Performance Management */ diff --git a/include/asm-avr32/arch-at32ap/board.h b/include/asm-avr32/arch-at32ap/board.h index b120ee0..1a7b07d 100644 --- a/include/asm-avr32/arch-at32ap/board.h +++ b/include/asm-avr32/arch-at32ap/board.h @@ -26,7 +26,9 @@ struct eth_platform_data { struct platform_device * at32_add_device_eth(unsigned int id, struct eth_platform_data *data); -struct platform_device *at32_add_device_spi(unsigned int id); +struct spi_board_info; +struct platform_device * +at32_add_device_spi(unsigned int id, struct spi_board_info *b, unsigned int n); struct lcdc_platform_data { unsigned long fbmem_start; diff --git a/include/asm-avr32/io.h b/include/asm-avr32/io.h index eec4750..c08e810 100644 --- a/include/asm-avr32/io.h +++ b/include/asm-avr32/io.h @@ -28,13 +28,13 @@ static __inline__ void * phys_to_virt(unsigned long address) * Generic IO read/write. These perform native-endian accesses. Note * that some architectures will want to re-define __raw_{read,write}w. */ -extern void __raw_writesb(unsigned int addr, const void *data, int bytelen); -extern void __raw_writesw(unsigned int addr, const void *data, int wordlen); -extern void __raw_writesl(unsigned int addr, const void *data, int longlen); +extern void __raw_writesb(void __iomem *addr, const void *data, int bytelen); +extern void __raw_writesw(void __iomem *addr, const void *data, int wordlen); +extern void __raw_writesl(void __iomem *addr, const void *data, int longlen); -extern void __raw_readsb(unsigned int addr, void *data, int bytelen); -extern void __raw_readsw(unsigned int addr, void *data, int wordlen); -extern void __raw_readsl(unsigned int addr, void *data, int longlen); +extern void __raw_readsb(const void __iomem *addr, void *data, int bytelen); +extern void __raw_readsw(const void __iomem *addr, void *data, int wordlen); +extern void __raw_readsl(const void __iomem *addr, void *data, int longlen); static inline void writeb(unsigned char b, volatile void __iomem *addr) { @@ -252,6 +252,9 @@ extern void __iounmap(void __iomem *addr); #define ioremap(offset, size) \ __ioremap((offset), (size), 0) +#define ioremap_nocache(offset, size) \ + __ioremap((offset), (size), 0) + #define iounmap(addr) \ __iounmap(addr) @@ -263,6 +266,14 @@ extern void __iounmap(void __iomem *addr); #define page_to_bus page_to_phys #define bus_to_page phys_to_page +/* + * Create a virtual mapping cookie for an IO port range. There exists + * no such thing as port-based I/O on AVR32, so a regular ioremap() + * should do what we need. + */ +#define ioport_map(port, nr) ioremap(port, nr) +#define ioport_unmap(port) iounmap(port) + #define dma_cache_wback_inv(_start, _size) \ flush_dcache_region(_start, _size) #define dma_cache_inv(_start, _size) \ diff --git a/include/asm-avr32/unistd.h b/include/asm-avr32/unistd.h index 56ed1f9..8f51204 100644 --- a/include/asm-avr32/unistd.h +++ b/include/asm-avr32/unistd.h @@ -120,7 +120,7 @@ #define __NR_getitimer 105 #define __NR_swapoff 106 #define __NR_sysinfo 107 -#define __NR_ipc 108 +/* 108 was __NR_ipc for a little while */ #define __NR_sendfile 109 #define __NR_setdomainname 110 #define __NR_uname 111 @@ -282,8 +282,21 @@ #define __NR_vmsplice 264 #define __NR_epoll_pwait 265 +#define __NR_msgget 266 +#define __NR_msgsnd 267 +#define __NR_msgrcv 268 +#define __NR_msgctl 269 +#define __NR_semget 270 +#define __NR_semop 271 +#define __NR_semctl 272 +#define __NR_semtimedop 273 +#define __NR_shmat 274 +#define __NR_shmget 275 +#define __NR_shmdt 276 +#define __NR_shmctl 277 + #ifdef __KERNEL__ -#define NR_syscalls 266 +#define NR_syscalls 278 #define __ARCH_WANT_IPC_PARSE_VERSION diff --git a/include/asm-i386/acpi.h b/include/asm-i386/acpi.h index 5e657eb..449f3f2 100644 --- a/include/asm-i386/acpi.h +++ b/include/asm-i386/acpi.h @@ -127,6 +127,7 @@ extern int acpi_irq_balance_set(char *str); #define acpi_ioapic 0 static inline void acpi_noirq_set(void) { } static inline void acpi_disable_pci(void) { } +static inline void disable_acpi(void) { } #endif /* !CONFIG_ACPI */ diff --git a/include/asm-i386/apic.h b/include/asm-i386/apic.h index 3a61206..cc6b165 100644 --- a/include/asm-i386/apic.h +++ b/include/asm-i386/apic.h @@ -95,9 +95,7 @@ static inline void ack_APIC_irq(void) apic_write_around(APIC_EOI, 0); } -extern void (*wait_timer_tick)(void); - -extern int get_maxlvt(void); +extern int lapic_get_maxlvt(void); extern void clear_local_APIC(void); extern void connect_bsp_APIC (void); extern void disconnect_bsp_APIC (int virt_wire_setup); @@ -113,14 +111,9 @@ extern void smp_local_timer_interrupt (void); extern void setup_boot_APIC_clock (void); extern void setup_secondary_APIC_clock (void); extern int APIC_init_uniprocessor (void); -extern void disable_APIC_timer(void); -extern void enable_APIC_timer(void); extern void enable_NMI_through_LVT0 (void * dummy); -void smp_send_timer_broadcast_ipi(void); -void switch_APIC_timer_to_ipi(void *cpumask); -void switch_ipi_to_APIC_timer(void *cpumask); #define ARCH_APICTIMER_STOPS_ON_C3 1 extern int timer_over_8254; diff --git a/include/asm-i386/hpet.h b/include/asm-i386/hpet.h index e47be9a..fc03cf9 100644 --- a/include/asm-i386/hpet.h +++ b/include/asm-i386/hpet.h @@ -90,16 +90,19 @@ #define HPET_MIN_PERIOD (100000UL) #define HPET_TICK_RATE (HZ * 100000UL) -extern unsigned long hpet_tick; /* hpet clks count per tick */ extern unsigned long hpet_address; /* hpet memory map physical address */ -extern int hpet_use_timer; +extern int is_hpet_enabled(void); +#ifdef CONFIG_X86_64 +extern unsigned long hpet_tick; /* hpet clks count per tick */ +extern int hpet_use_timer; extern int hpet_rtc_timer_init(void); extern int hpet_enable(void); -extern int hpet_reenable(void); -extern int is_hpet_enabled(void); extern int is_hpet_capable(void); extern int hpet_readl(unsigned long a); +#else +extern int hpet_enable(void); +#endif #ifdef CONFIG_HPET_EMULATE_RTC extern int hpet_mask_rtc_irq_bit(unsigned long bit_mask); @@ -110,5 +113,10 @@ extern int hpet_rtc_dropped_irq(void); extern int hpet_rtc_timer_init(void); extern irqreturn_t hpet_rtc_interrupt(int irq, void *dev_id); #endif /* CONFIG_HPET_EMULATE_RTC */ + +#else + +static inline int hpet_enable(void) { return 0; } + #endif /* CONFIG_HPET_TIMER */ #endif /* _I386_HPET_H */ diff --git a/include/asm-i386/i8253.h b/include/asm-i386/i8253.h index 015d8df..6cb0dd4 100644 --- a/include/asm-i386/i8253.h +++ b/include/asm-i386/i8253.h @@ -1,6 +1,21 @@ #ifndef __ASM_I8253_H__ #define __ASM_I8253_H__ +#include <linux/clockchips.h> + extern spinlock_t i8253_lock; +extern struct clock_event_device *global_clock_event; + +/** + * pit_interrupt_hook - hook into timer tick + * @regs: standard registers from interrupt + * + * Call the global clock event handler. + **/ +static inline void pit_interrupt_hook(void) +{ + global_clock_event->event_handler(global_clock_event); +} + #endif /* __ASM_I8253_H__ */ diff --git a/include/asm-i386/mach-default/do_timer.h b/include/asm-i386/mach-default/do_timer.h index 7d606e3..56e5689 100644 --- a/include/asm-i386/mach-default/do_timer.h +++ b/include/asm-i386/mach-default/do_timer.h @@ -1,86 +1,16 @@ /* defines for inline arch setup functions */ +#include <linux/clockchips.h> -#include <asm/apic.h> #include <asm/i8259.h> +#include <asm/i8253.h> /** * do_timer_interrupt_hook - hook into timer tick - * @regs: standard registers from interrupt * - * Description: - * This hook is called immediately after the timer interrupt is ack'd. - * It's primary purpose is to allow architectures that don't possess - * individual per CPU clocks (like the CPU APICs supply) to broadcast the - * timer interrupt as a means of triggering reschedules etc. + * Call the pit clock event handler. see asm/i8253.h **/ static inline void do_timer_interrupt_hook(void) { - do_timer(1); -#ifndef CONFIG_SMP - update_process_times(user_mode_vm(get_irq_regs())); -#endif -/* - * In the SMP case we use the local APIC timer interrupt to do the - * profiling, except when we simulate SMP mode on a uniprocessor - * system, in that case we have to call the local interrupt handler. - */ -#ifndef CONFIG_X86_LOCAL_APIC - profile_tick(CPU_PROFILING); -#else - if (!using_apic_timer) - smp_local_timer_interrupt(); -#endif -} - - -/* you can safely undefine this if you don't have the Neptune chipset */ - -#define BUGGY_NEPTUN_TIMER - -/** - * do_timer_overflow - process a detected timer overflow condition - * @count: hardware timer interrupt count on overflow - * - * Description: - * This call is invoked when the jiffies count has not incremented but - * the hardware timer interrupt has. It means that a timer tick interrupt - * came along while the previous one was pending, thus a tick was missed - **/ -static inline int do_timer_overflow(int count) -{ - int i; - - spin_lock(&i8259A_lock); - /* - * This is tricky when I/O APICs are used; - * see do_timer_interrupt(). - */ - i = inb(0x20); - spin_unlock(&i8259A_lock); - - /* assumption about timer being IRQ0 */ - if (i & 0x01) { - /* - * We cannot detect lost timer interrupts ... - * well, that's why we call them lost, don't we? :) - * [hmm, on the Pentium and Alpha we can ... sort of] - */ - count -= LATCH; - } else { -#ifdef BUGGY_NEPTUN_TIMER - /* - * for the Neptun bug we know that the 'latch' - * command doesn't latch the high and low value - * of the counter atomically. Thus we have to - * substract 256 from the counter - * ... funny, isnt it? :) - */ - - count -= 256; -#else - printk("do_slow_gettimeoffset(): hardware timer problem?\n"); -#endif - } - return count; + pit_interrupt_hook(); } diff --git a/include/asm-i386/mach-voyager/do_timer.h b/include/asm-i386/mach-voyager/do_timer.h index 04e69c1..60f9dcc 100644 --- a/include/asm-i386/mach-voyager/do_timer.h +++ b/include/asm-i386/mach-voyager/do_timer.h @@ -1,25 +1,18 @@ /* defines for inline arch setup functions */ +#include <linux/clockchips.h> + #include <asm/voyager.h> +#include <asm/i8253.h> +/** + * do_timer_interrupt_hook - hook into timer tick + * @regs: standard registers from interrupt + * + * Call the pit clock event handler. see asm/i8253.h + **/ static inline void do_timer_interrupt_hook(void) { - do_timer(1); -#ifndef CONFIG_SMP - update_process_times(user_mode_vm(irq_regs)); -#endif - + pit_interrupt_hook(); voyager_timer_interrupt(); } -static inline int do_timer_overflow(int count) -{ - /* can't read the ISR, just assume 1 tick - overflow */ - if(count > LATCH || count < 0) { - printk(KERN_ERR "VOYAGER PROBLEM: count is %d, latch is %d\n", count, LATCH); - count = LATCH; - } - count -= LATCH; - - return count; -} diff --git a/include/asm-i386/mpspec.h b/include/asm-i386/mpspec.h index 770bf6d..f213493 100644 --- a/include/asm-i386/mpspec.h +++ b/include/asm-i386/mpspec.h @@ -23,7 +23,6 @@ extern struct mpc_config_intsrc mp_irqs [MAX_IRQ_SOURCES]; extern int mpc_default_type; extern unsigned long mp_lapic_addr; extern int pic_mode; -extern int using_apic_timer; #ifdef CONFIG_ACPI extern void mp_register_lapic (u8 id, u8 enabled); diff --git a/include/asm-i386/msr.h b/include/asm-i386/msr.h index 609a389..6db40d0 100644 --- a/include/asm-i386/msr.h +++ b/include/asm-i386/msr.h @@ -307,4 +307,7 @@ static inline void wrmsrl (unsigned long msr, unsigned long long val) #define MSR_CORE_PERF_GLOBAL_CTRL 0x38f #define MSR_CORE_PERF_GLOBAL_OVF_CTRL 0x390 +/* Geode defined MSRs */ +#define MSR_GEODE_BUSCONT_CONF0 0x1900 + #endif /* __ASM_MSR_H */ diff --git a/include/asm-i386/tsc.h b/include/asm-i386/tsc.h index c139331..e997891 100644 --- a/include/asm-i386/tsc.h +++ b/include/asm-i386/tsc.h @@ -1,48 +1 @@ -/* - * linux/include/asm-i386/tsc.h - * - * i386 TSC related functions - */ -#ifndef _ASM_i386_TSC_H -#define _ASM_i386_TSC_H - -#include <asm/processor.h> - -/* - * Standard way to access the cycle counter on i586+ CPUs. - * Currently only used on SMP. - * - * If you really have a SMP machine with i486 chips or older, - * compile for that, and this will just always return zero. - * That's ok, it just means that the nicer scheduling heuristics - * won't work for you. - * - * We only use the low 32 bits, and we'd simply better make sure - * that we reschedule before that wraps. Scheduling at least every - * four billion cycles just basically sounds like a good idea, - * regardless of how fast the machine is. - */ -typedef unsigned long long cycles_t; - -extern unsigned int cpu_khz; -extern unsigned int tsc_khz; - -static inline cycles_t get_cycles(void) -{ - unsigned long long ret = 0; - -#ifndef CONFIG_X86_TSC - if (!cpu_has_tsc) - return 0; -#endif - -#if defined(CONFIG_X86_GENERIC) || defined(CONFIG_X86_TSC) - rdtscll(ret); -#endif - return ret; -} - -extern void tsc_init(void); -extern void mark_tsc_unstable(void); - -#endif +#include <asm-x86_64/tsc.h> diff --git a/include/asm-ia64/libata-portmap.h b/include/asm-ia64/libata-portmap.h new file mode 100644 index 0000000..0e00c9a --- /dev/null +++ b/include/asm-ia64/libata-portmap.h @@ -0,0 +1,12 @@ +#ifndef __ASM_IA64_LIBATA_PORTMAP_H +#define __ASM_IA64_LIBATA_PORTMAP_H + +#define ATA_PRIMARY_CMD 0x1F0 +#define ATA_PRIMARY_CTL 0x3F6 +#define ATA_PRIMARY_IRQ(dev) isa_irq_to_vector(14) + +#define ATA_SECONDARY_CMD 0x170 +#define ATA_SECONDARY_CTL 0x376 +#define ATA_SECONDARY_IRQ(dev) isa_irq_to_vector(15) + +#endif diff --git a/include/asm-sh/Kbuild b/include/asm-sh/Kbuild index c68e168..76a8ccf 100644 --- a/include/asm-sh/Kbuild +++ b/include/asm-sh/Kbuild @@ -1 +1,3 @@ include include/asm-generic/Kbuild.asm + +header-y += cpu-features.h diff --git a/include/asm-sh/bigsur/bigsur.h b/include/asm-sh/bigsur/bigsur.h deleted file mode 100644 index 427245f..0000000 --- a/include/asm-sh/bigsur/bigsur.h +++ /dev/null @@ -1,80 +0,0 @@ -/* - * - * Hitachi Big Sur Eval Board support - * - * Dustin McIntire (dustin@sensoria.com) - * - * May be copied or modified under the terms of the GNU General Public - * License. See linux/COPYING for more information. - * - * Derived from Hitachi SH7751 reference manual - * - */ - -#ifndef _ASM_BIGSUR_H_ -#define _ASM_BIGSUR_H_ - -#include <asm/irq.h> -#include <asm/hd64465/hd64465.h> - -/* 7751 Internal IRQ's used by external CPLD controller */ -#define BIGSUR_IRQ_LOW 0 -#define BIGSUR_IRQ_NUM 14 /* External CPLD level 1 IRQs */ -#define BIGSUR_IRQ_HIGH (BIGSUR_IRQ_LOW + BIGSUR_IRQ_NUM) -#define BIGSUR_2NDLVL_IRQ_LOW (HD64465_IRQ_BASE+HD64465_IRQ_NUM) -#define BIGSUR_2NDLVL_IRQ_NUM 32 /* Level 2 IRQs = 4 regs * 8 bits */ -#define BIGSUR_2NDLVL_IRQ_HIGH (BIGSUR_2NDLVL_IRQ_LOW + \ - BIGSUR_2NDLVL_IRQ_NUM) - -/* PCI interrupt base number (A_INTA-A_INTD) */ -#define BIGSUR_SH7751_PCI_IRQ_BASE (BIGSUR_2NDLVL_IRQ_LOW+10) - -/* CPLD registers and external chip addresses */ -#define BIGSUR_HD64464_ADDR 0xB2000000 -#define BIGSUR_DGDR 0xB1FFFE00 -#define BIGSUR_BIDR 0xB1FFFD00 -#define BIGSUR_CSLR 0xB1FFFC00 -#define BIGSUR_SW1R 0xB1FFFB00 -#define BIGSUR_DBGR 0xB1FFFA00 -#define BIGSUR_BDTR 0xB1FFF900 -#define BIGSUR_BDRR 0xB1FFF800 -#define BIGSUR_PPR1 0xB1FFF700 -#define BIGSUR_PPR2 0xB1FFF600 -#define BIGSUR_IDE2 0xB1FFF500 -#define BIGSUR_IDE3 0xB1FFF400 -#define BIGSUR_SPCR 0xB1FFF300 -#define BIGSUR_ETHR 0xB1FE0000 -#define BIGSUR_PPDR 0xB1FDFF00 -#define BIGSUR_ICTL 0xB1FDFE00 -#define BIGSUR_ICMD 0xB1FDFD00 -#define BIGSUR_DMA0 0xB1FDFC00 -#define BIGSUR_DMA1 0xB1FDFB00 -#define BIGSUR_IRQ0 0xB1FDFA00 -#define BIGSUR_IRQ1 0xB1FDF900 -#define BIGSUR_IRQ2 0xB1FDF800 -#define BIGSUR_IRQ3 0xB1FDF700 -#define BIGSUR_IMR0 0xB1FDF600 -#define BIGSUR_IMR1 0xB1FDF500 -#define BIGSUR_IMR2 0xB1FDF400 -#define BIGSUR_IMR3 0xB1FDF300 -#define BIGSUR_IRLMR0 0xB1FDF200 -#define BIGSUR_IRLMR1 0xB1FDF100 -#define BIGSUR_V320USC_ADDR 0xB1000000 -#define BIGSUR_HD64465_ADDR 0xB0000000 -#define BIGSUR_INTERNAL_BASE 0xB0000000 - -/* SMC ethernet card parameters */ -#define BIGSUR_ETHER_IOPORT 0x220 - -/* IDE register paramters */ -#define BIGSUR_IDECMD_IOPORT 0x1f0 -#define BIGSUR_IDECTL_IOPORT 0x1f8 - -/* LED bit position in BIGSUR_CSLR */ -#define BIGSUR_LED (1<<4) - -/* PCI: default LOCAL memory window sizes (seen from PCI bus) */ -#define BIGSUR_LSR0_SIZE (64*(1<<20)) //64MB -#define BIGSUR_LSR1_SIZE (64*(1<<20)) //64MB - -#endif /* _ASM_BIGSUR_H_ */ diff --git a/include/asm-sh/bigsur/io.h b/include/asm-sh/bigsur/io.h deleted file mode 100644 index 1470ac8..0000000 --- a/include/asm-sh/bigsur/io.h +++ /dev/null @@ -1,35 +0,0 @@ -/* - * include/asm-sh/bigsur/io.h - * - * By Dustin McIntire (dustin@sensoria.com) (c)2001 - * Derived from io_hd64465.h, which bore the message: - * By Greg Banks <gbanks@pocketpenguins.com> - * (c) 2000 PocketPenguins Inc. - * and from io_hd64461.h, which bore the message: - * Copyright 2000 Stuart Menefy (stuart.menefy@st.com) - * - * May be copied or modified under the terms of the GNU General Public - * License. See linux/COPYING for more information. - * - * IO functions for a Hitachi Big Sur Evaluation Board. - */ - -#ifndef _ASM_SH_IO_BIGSUR_H -#define _ASM_SH_IO_BIGSUR_H - -#include <linux/types.h> - -extern unsigned long bigsur_isa_port2addr(unsigned long offset); -extern int bigsur_irq_demux(int irq); -/* Provision for generic secondary demux step -- used by PCMCIA code */ -extern void bigsur_register_irq_demux(int irq, - int (*demux)(int irq, void *dev), void *dev); -extern void bigsur_unregister_irq_demux(int irq); -/* Set this variable to 1 to see port traffic */ -extern int bigsur_io_debug; -/* Map a range of ports to a range of kernel virtual memory. */ -extern void bigsur_port_map(u32 baseport, u32 nports, u32 addr, u8 shift); -extern void bigsur_port_unmap(u32 baseport, u32 nports); - -#endif /* _ASM_SH_IO_BIGSUR_H */ - diff --git a/include/asm-sh/bigsur/serial.h b/include/asm-sh/bigsur/serial.h deleted file mode 100644 index a08fa82..0000000 --- a/include/asm-sh/bigsur/serial.h +++ /dev/null @@ -1,24 +0,0 @@ -/* - * include/asm-sh/bigsur/serial.h - * - * Configuration details for Big Sur 16550 based serial ports - * i.e. HD64465, PCMCIA, etc. - */ - -#ifndef _ASM_SERIAL_BIGSUR_H -#define _ASM_SERIAL_BIGSUR_H -#include <asm/hd64465.h> - -#define BASE_BAUD (3379200 / 16) - -#define STD_COM_FLAGS (ASYNC_BOOT_AUTOCONF | ASYNC_SKIP_TEST) - - -#define SERIAL_PORT_DFNS \ - /* UART CLK PORT IRQ FLAGS */ \ - { 0, BASE_BAUD, 0x3F8, HD64465_IRQ_UART, STD_COM_FLAGS } /* ttyS0 */ - -/* XXX: This should be moved ino irq.h */ -#define irq_cannonicalize(x) (x) - -#endif /* _ASM_SERIAL_BIGSUR_H */ diff --git a/include/asm-sh/bugs.h b/include/asm-sh/bugs.h index a294997..5a117ec 100644 --- a/include/asm-sh/bugs.h +++ b/include/asm-sh/bugs.h @@ -19,9 +19,9 @@ static void __init check_bugs(void) extern unsigned long loops_per_jiffy; char *p = &init_utsname()->machine[2]; /* "sh" */ - cpu_data->loops_per_jiffy = loops_per_jiffy; + current_cpu_data.loops_per_jiffy = loops_per_jiffy; - switch (cpu_data->type) { + switch (current_cpu_data.type) { case CPU_SH7604 ... CPU_SH7619: *p++ = '2'; break; @@ -54,7 +54,7 @@ static void __init check_bugs(void) break; } - printk("CPU: %s\n", get_cpu_subtype()); + printk("CPU: %s\n", get_cpu_subtype(¤t_cpu_data)); #ifndef __LITTLE_ENDIAN__ /* 'eb' means 'Endian Big' */ diff --git a/include/asm-sh/cacheflush.h b/include/asm-sh/cacheflush.h index 07f62ec..22f1263 100644 --- a/include/asm-sh/cacheflush.h +++ b/include/asm-sh/cacheflush.h @@ -30,5 +30,8 @@ extern void __flush_invalidate_region(void *start, int size); #define HAVE_ARCH_UNMAPPED_AREA +/* Page flag for lazy dcache write-back for the aliasing UP caches */ +#define PG_dcache_dirty PG_arch_1 + #endif /* __KERNEL__ */ #endif /* __ASM_SH_CACHEFLUSH_H */ diff --git a/include/asm-sh/cpu-sh3/cacheflush.h b/include/asm-sh/cpu-sh3/cacheflush.h index f70d8ef..6fabbba 100644 --- a/include/asm-sh/cpu-sh3/cacheflush.h +++ b/include/asm-sh/cpu-sh3/cacheflush.h @@ -36,8 +36,6 @@ /* 32KB cache, 4kb PAGE sizes need to check bit 12 */ #define CACHE_ALIAS 0x00001000 -#define PG_mapped PG_arch_1 - void flush_cache_all(void); void flush_cache_mm(struct mm_struct *mm); #define flush_cache_dup_mm(mm) flush_cache_mm(mm) diff --git a/include/asm-sh/cpu-sh4/cacheflush.h b/include/asm-sh/cpu-sh4/cacheflush.h index b01a10f..b3746a9 100644 --- a/include/asm-sh/cpu-sh4/cacheflush.h +++ b/include/asm-sh/cpu-sh4/cacheflush.h @@ -17,6 +17,7 @@ * so we need them. */ void flush_cache_all(void); +void flush_dcache_all(void); void flush_cache_mm(struct mm_struct *mm); #define flush_cache_dup_mm(mm) flush_cache_mm(mm) void flush_cache_range(struct vm_area_struct *vma, unsigned long start, @@ -38,16 +39,4 @@ void flush_icache_user_range(struct vm_area_struct *vma, struct page *page, /* Initialization of P3 area for copy_user_page */ void p3_cache_init(void); -#define PG_mapped PG_arch_1 - -#ifdef CONFIG_MMU -extern int remap_area_pages(unsigned long addr, unsigned long phys_addr, - unsigned long size, unsigned long flags); -#else /* CONFIG_MMU */ -static inline int remap_area_pages(unsigned long addr, unsigned long phys_addr, - unsigned long size, unsigned long flags) -{ - return 0; -} -#endif /* CONFIG_MMU */ #endif /* __ASM_CPU_SH4_CACHEFLUSH_H */ diff --git a/include/asm-sh/cpu-sh4/dma.h b/include/asm-sh/cpu-sh4/dma.h index 3e4b3e6..c135e9c 100644 --- a/include/asm-sh/cpu-sh4/dma.h +++ b/include/asm-sh/cpu-sh4/dma.h @@ -3,6 +3,17 @@ #define DMAOR_INIT ( 0x8000 | DMAOR_DME ) +/* SH7751/7760/7780 DMA IRQ sources */ +#define DMTE0_IRQ 34 +#define DMTE1_IRQ 35 +#define DMTE2_IRQ 36 +#define DMTE3_IRQ 37 +#define DMTE4_IRQ 44 +#define DMTE5_IRQ 45 +#define DMTE6_IRQ 46 +#define DMTE7_IRQ 47 +#define DMAE_IRQ 38 + #ifdef CONFIG_CPU_SH4A #define SH_DMAC_BASE 0xfc808020 diff --git a/include/asm-sh/dma-mapping.h b/include/asm-sh/dma-mapping.h index 8d0867b..d3bc781 100644 --- a/include/asm-sh/dma-mapping.h +++ b/include/asm-sh/dma-mapping.h @@ -53,6 +53,10 @@ static inline void dma_free_coherent(struct device *dev, size_t size, consistent_free(vaddr, size); } +#define dma_alloc_noncoherent(d, s, h, f) dma_alloc_coherent(d, s, h, f) +#define dma_free_noncoherent(d, s, v, h) dma_free_coherent(d, s, v, h) +#define dma_is_consistent(d, h) (1) + static inline void dma_cache_sync(struct device *dev, void *vaddr, size_t size, enum dma_data_direction dir) { diff --git a/include/asm-sh/ec3104/ec3104.h b/include/asm-sh/ec3104/ec3104.h deleted file mode 100644 index 639cfa4..0000000 --- a/include/asm-sh/ec3104/ec3104.h +++ /dev/null @@ -1,43 +0,0 @@ -#ifndef __ASM_EC3104_H -#define __ASM_EC3104_H - - -/* - * Most of the register set is at 0xb0ec0000 - 0xb0ecffff. - * - * as far as I've figured it out the register map is: - * 0xb0ec0000 - id string - * 0xb0ec0XXX - power management - * 0xb0ec1XXX - interrupt control - * 0xb0ec3XXX - ps2 port (touch pad on aero 8000) - * 0xb0ec6XXX - i2c - * 0xb0ec7000 - first serial port (proprietary connector on aero 8000) - * 0xb0ec8000 - second serial port - * 0xb0ec9000 - third serial port - * 0xb0eca000 - fourth serial port (keyboard controller on aero 8000) - * 0xb0eccXXX - GPIO - * 0xb0ecdXXX - GPIO - */ - -#define EC3104_BASE 0xb0ec0000 - -#define EC3104_SER4_DATA (EC3104_BASE+0xa000) -#define EC3104_SER4_IIR (EC3104_BASE+0xa008) -#define EC3104_SER4_MCR (EC3104_BASE+0xa010) -#define EC3104_SER4_LSR (EC3104_BASE+0xa014) -#define EC3104_SER4_MSR (EC3104_BASE+0xa018) - -/* - * our ISA bus. this seems to be real ISA. - */ -#define EC3104_ISA_BASE 0xa5000000 - -#define EC3104_IRQ 11 -#define EC3104_IRQBASE 64 - -#define EC3104_IRQ_SER1 EC3104_IRQBASE + 7 -#define EC3104_IRQ_SER2 EC3104_IRQBASE + 8 -#define EC3104_IRQ_SER3 EC3104_IRQBASE + 9 -#define EC3104_IRQ_SER4 EC3104_IRQBASE + 10 - -#endif /* __ASM_EC3104_H */ diff --git a/include/asm-sh/ec3104/io.h b/include/asm-sh/ec3104/io.h deleted file mode 100644 index ea5c8e6..0000000 --- a/include/asm-sh/ec3104/io.h +++ /dev/null @@ -1,16 +0,0 @@ -#ifndef _ASM_SH_IO_EC3104_H -#define _ASM_SH_IO_EC3104_H - -#include <linux/types.h> - -extern unsigned char ec3104_inb(unsigned long port); -extern unsigned short ec3104_inw(unsigned long port); -extern unsigned long ec3104_inl(unsigned long port); - -extern void ec3104_outb(unsigned char value, unsigned long port); -extern void ec3104_outw(unsigned short value, unsigned long port); -extern void ec3104_outl(unsigned long value, unsigned long port); - -extern int ec3104_irq_demux(int irq); - -#endif /* _ASM_SH_IO_EC3104_H */ diff --git a/include/asm-sh/ec3104/keyboard.h b/include/asm-sh/ec3104/keyboard.h deleted file mode 100644 index c1253a6..0000000 --- a/include/asm-sh/ec3104/keyboard.h +++ /dev/null @@ -1,15 +0,0 @@ -extern unsigned char ec3104_kbd_sysrq_xlate[]; -extern int ec3104_kbd_setkeycode(unsigned int scancode, unsigned int keycode); -extern int ec3104_kbd_getkeycode(unsigned int scancode); -extern int ec3104_kbd_translate(unsigned char, unsigned char *, char); -extern char ec3104_kbd_unexpected_up(unsigned char); -extern void ec3104_kbd_leds(unsigned char); -extern void ec3104_kbd_init_hw(void); - -#define kbd_sysrq_xlate ec3104_kbd_sysrq_xlate -#define kbd_setkeycode ec3104_kbd_setkeycode -#define kbd_getkeycode ec3104_kbd_getkeycode -#define kbd_translate ec3104_kbd_translate -#define kbd_unexpected_up ec3104_kbd_unexpected_up -#define kbd_leds ec3104_kbd_leds -#define kbd_init_hw ec3104_kbd_init_hw diff --git a/include/asm-sh/ec3104/serial.h b/include/asm-sh/ec3104/serial.h deleted file mode 100644 index cfe4d78..0000000 --- a/include/asm-sh/ec3104/serial.h +++ /dev/null @@ -1,20 +0,0 @@ -#include <asm/ec3104.h> -/* Naturally we don't know the exact value but 115200 baud has a divisor - * of 9 and 19200 baud has a divisor of 52, so this seems like a good - * guess. */ -#define BASE_BAUD (16800000 / 16) - -#define STD_COM_FLAGS (ASYNC_BOOT_AUTOCONF | ASYNC_SKIP_TEST) - -/* there is a fourth serial port with the expected values as well, but - * it's got the keyboard controller behind it so we can't really use it - * (without moving the keyboard driver to userspace, which doesn't sound - * like a very good idea) */ -#define SERIAL_PORT_DFNS \ - /* UART CLK PORT IRQ FLAGS */ \ - { 0, BASE_BAUD, 0x11C00, EC3104_IRQBASE+7, STD_COM_FLAGS }, /* ttyS0 */ \ - { 0, BASE_BAUD, 0x12000, EC3104_IRQBASE+8, STD_COM_FLAGS }, /* ttyS1 */ \ - { 0, BASE_BAUD, 0x12400, EC3104_IRQBASE+9, STD_COM_FLAGS }, /* ttyS2 */ - -/* XXX: This should be moved ino irq.h */ -#define irq_cannonicalize(x) (x) diff --git a/include/asm-sh/irq.h b/include/asm-sh/irq.h index bff965e..8ccf7ae 100644 --- a/include/asm-sh/irq.h +++ b/include/asm-sh/irq.h @@ -66,12 +66,8 @@ /* 3. OFFCHIP_NR_IRQS */ #if defined(CONFIG_HD64461) # define OFFCHIP_NR_IRQS 18 -#elif defined (CONFIG_SH_BIGSUR) /* must be before CONFIG_HD64465 */ -# define OFFCHIP_NR_IRQS 48 #elif defined(CONFIG_HD64465) # define OFFCHIP_NR_IRQS 16 -#elif defined (CONFIG_SH_EC3104) -# define OFFCHIP_NR_IRQS 16 #elif defined (CONFIG_SH_DREAMCAST) # define OFFCHIP_NR_IRQS 96 #elif defined (CONFIG_SH_TITAN) diff --git a/include/asm-sh/kgdb.h b/include/asm-sh/kgdb.h index 7b26f53..0095c66 100644 --- a/include/asm-sh/kgdb.h +++ b/include/asm-sh/kgdb.h @@ -85,10 +85,10 @@ extern int setjmp(jmp_buf __jmpb); #define KGDB_PRINTK(...) printk("KGDB: " __VA_ARGS__) /* Forced breakpoint */ -#define BREAKPOINT() do { \ - if (kgdb_enabled) { \ - asm volatile("trapa #0xff"); \ - } \ +#define BREAKPOINT() \ +do { \ + if (kgdb_enabled) \ + __asm__ __volatile__("trapa #0x3c"); \ } while (0) /* KGDB should be able to flush all kernel text space */ diff --git a/include/asm-sh/mmu.h b/include/asm-sh/mmu.h index cf47df7..eb0358c 100644 --- a/include/asm-sh/mmu.h +++ b/include/asm-sh/mmu.h @@ -1,25 +1,19 @@ #ifndef __MMU_H #define __MMU_H -#if !defined(CONFIG_MMU) +/* Default "unsigned long" context */ +typedef unsigned long mm_context_id_t[NR_CPUS]; typedef struct { +#ifdef CONFIG_MMU + mm_context_id_t id; + void *vdso; +#else struct vm_list_struct *vmlist; unsigned long end_brk; +#endif } mm_context_t; -#else - -/* Default "unsigned long" context */ -typedef unsigned long mm_context_id_t; - -typedef struct { - mm_context_id_t id; - void *vdso; -} mm_context_t; - -#endif /* CONFIG_MMU */ - /* * Privileged Space Mapping Buffer (PMB) definitions */ diff --git a/include/asm-sh/mmu_context.h b/include/asm-sh/mmu_context.h index 46f04e2..3420244 100644 --- a/include/asm-sh/mmu_context.h +++ b/include/asm-sh/mmu_context.h @@ -1,6 +1,6 @@ /* * Copyright (C) 1999 Niibe Yutaka - * Copyright (C) 2003 Paul Mundt + * Copyright (C) 2003 - 2006 Paul Mundt * * ASID handling idea taken from MIPS implementation. */ @@ -19,11 +19,6 @@ * (b) ASID (Address Space IDentifier) */ -/* - * Cache of MMU context last used. - */ -extern unsigned long mmu_context_cache; - #define MMU_CONTEXT_ASID_MASK 0x000000ff #define MMU_CONTEXT_VERSION_MASK 0xffffff00 #define MMU_CONTEXT_FIRST_VERSION 0x00000100 @@ -32,6 +27,11 @@ extern unsigned long mmu_context_cache; /* ASID is 8-bit value, so it can't be 0x100 */ #define MMU_NO_ASID 0x100 +#define cpu_context(cpu, mm) ((mm)->context.id[cpu]) +#define cpu_asid(cpu, mm) (cpu_context((cpu), (mm)) & \ + MMU_CONTEXT_ASID_MASK) +#define asid_cache(cpu) (cpu_data[cpu].asid_cache) + /* * Virtual Page Number mask */ @@ -41,18 +41,17 @@ extern unsigned long mmu_context_cache; /* * Get MMU context if needed. */ -static inline void get_mmu_context(struct mm_struct *mm) +static inline void get_mmu_context(struct mm_struct *mm, unsigned int cpu) { - unsigned long mc = mmu_context_cache; + unsigned long asid = asid_cache(cpu); /* Check if we have old version of context. */ - if (((mm->context.id ^ mc) & MMU_CONTEXT_VERSION_MASK) == 0) + if (((cpu_context(cpu, mm) ^ asid) & MMU_CONTEXT_VERSION_MASK) == 0) /* It's up to date, do nothing */ return; /* It's old, we need to get new context with new version. */ - mc = ++mmu_context_cache; - if (!(mc & MMU_CONTEXT_ASID_MASK)) { + if (!(++asid & MMU_CONTEXT_ASID_MASK)) { /* * We exhaust ASID of this version. * Flush all TLB and start new cycle. @@ -63,10 +62,11 @@ static inline void get_mmu_context(struct mm_struct *mm) * Fix version; Note that we avoid version #0 * to distingush NO_CONTEXT. */ - if (!mc) - mmu_context_cache = mc = MMU_CONTEXT_FIRST_VERSION; + if (!asid) + asid = MMU_CONTEXT_FIRST_VERSION; } - mm->context.id = mc; + + cpu_context(cpu, mm) = asid_cache(cpu) = asid; } /* @@ -74,9 +74,13 @@ static inline void get_mmu_context(struct mm_struct *mm) * instance. */ static inline int init_new_context(struct task_struct *tsk, - struct mm_struct *mm) + struct mm_struct *mm) { - mm->context.id = NO_CONTEXT; + int i; + + for (i = 0; i < num_online_cpus(); i++) + cpu_context(i, mm) = NO_CONTEXT; + return 0; } @@ -117,10 +121,10 @@ static inline unsigned long get_asid(void) * After we have set current->mm to a new value, this activates * the context for the new mm so we see the new mappings. */ -static inline void activate_context(struct mm_struct *mm) +static inline void activate_context(struct mm_struct *mm, unsigned int cpu) { - get_mmu_context(mm); - set_asid(mm->context.id & MMU_CONTEXT_ASID_MASK); + get_mmu_context(mm, cpu); + set_asid(cpu_asid(cpu, mm)); } /* MMU_TTB is used for optimizing the fault handling. */ @@ -138,10 +142,15 @@ static inline void switch_mm(struct mm_struct *prev, struct mm_struct *next, struct task_struct *tsk) { + unsigned int cpu = smp_processor_id(); + if (likely(prev != next)) { + cpu_set(cpu, next->cpu_vm_mask); set_TTB(next->pgd); - activate_context(next); - } + activate_context(next, cpu); + } else + if (!cpu_test_and_set(cpu, next->cpu_vm_mask)) + activate_context(next, cpu); } #define deactivate_mm(tsk,mm) do { } while (0) @@ -159,7 +168,7 @@ enter_lazy_tlb(struct mm_struct *mm, struct task_struct *tsk) #define destroy_context(mm) do { } while (0) #define set_asid(asid) do { } while (0) #define get_asid() (0) -#define activate_context(mm) do { } while (0) +#define activate_context(mm,cpu) do { } while (0) #define switch_mm(prev,next,tsk) do { } while (0) #define deactivate_mm(tsk,mm) do { } while (0) #define activate_mm(prev,next) do { } while (0) @@ -174,14 +183,16 @@ enter_lazy_tlb(struct mm_struct *mm, struct task_struct *tsk) */ static inline void enable_mmu(void) { + unsigned int cpu = smp_processor_id(); + /* Enable MMU */ ctrl_outl(MMU_CONTROL_INIT, MMUCR); ctrl_barrier(); - if (mmu_context_cache == NO_CONTEXT) - mmu_context_cache = MMU_CONTEXT_FIRST_VERSION; + if (asid_cache(cpu) == NO_CONTEXT) + asid_cache(cpu) = MMU_CONTEXT_FIRST_VERSION; - set_asid(mmu_context_cache & MMU_CONTEXT_ASID_MASK); + set_asid(asid_cache(cpu) & MMU_CONTEXT_ASID_MASK); } static inline void disable_mmu(void) diff --git a/include/asm-sh/page.h b/include/asm-sh/page.h index 380fd62..ac4b467 100644 --- a/include/asm-sh/page.h +++ b/include/asm-sh/page.h @@ -13,6 +13,8 @@ [ P4 control ] 0xE0000000 */ +#ifdef __KERNEL__ + /* PAGE_SHIFT determines the page size */ #if defined(CONFIG_PAGE_SIZE_4KB) # define PAGE_SHIFT 12 @@ -51,7 +53,6 @@ #define HUGETLB_PAGE_ORDER (HPAGE_SHIFT-PAGE_SHIFT) #endif -#ifdef __KERNEL__ #ifndef __ASSEMBLY__ extern void (*clear_page)(void *to); diff --git a/include/asm-sh/pgtable.h b/include/asm-sh/pgtable.h index 036ca28..9214c01 100644 --- a/include/asm-sh/pgtable.h +++ b/include/asm-sh/pgtable.h @@ -43,17 +43,17 @@ extern unsigned long empty_zero_page[PAGE_SIZE / sizeof(unsigned long)]; /* PGD bits */ #define PGDIR_SHIFT (PTE_SHIFT + PTE_BITS) #define PGDIR_BITS (32 - PGDIR_SHIFT) -#define PGDIR_SIZE (1 << PGDIR_SHIFT) +#define PGDIR_SIZE (1UL << PGDIR_SHIFT) #define PGDIR_MASK (~(PGDIR_SIZE-1)) /* Entries per level */ -#define PTRS_PER_PTE (PAGE_SIZE / 4) +#define PTRS_PER_PTE (PAGE_SIZE / (1 << PTE_MAGNITUDE)) #define PTRS_PER_PGD (PAGE_SIZE / 4) #define USER_PTRS_PER_PGD (TASK_SIZE/PGDIR_SIZE) #define FIRST_USER_ADDRESS 0 -#define PTE_PHYS_MASK 0x1ffff000 +#define PTE_PHYS_MASK (0x20000000 - PAGE_SIZE) /* * First 1MB map is used by fixed purpose. @@ -583,11 +583,6 @@ struct mm_struct; extern unsigned int kobjsize(const void *objp); #endif /* !CONFIG_MMU */ -#if defined(CONFIG_CPU_SH4) || defined(CONFIG_SH7705_CACHE_32KB) -#define __HAVE_ARCH_PTEP_GET_AND_CLEAR -extern pte_t ptep_get_and_clear(struct mm_struct *mm, unsigned long addr, pte_t *ptep); -#endif - extern pgd_t swapper_pg_dir[PTRS_PER_PGD]; extern void paging_init(void); diff --git a/include/asm-sh/processor.h b/include/asm-sh/processor.h index e29f2ab..3e46a7a 100644 --- a/include/asm-sh/processor.h +++ b/include/asm-sh/processor.h @@ -27,8 +27,6 @@ #define CCN_CVR 0xff000040 #define CCN_PRR 0xff000044 -const char *get_cpu_subtype(void); - /* * CPU type and hardware bug flags. Kept separately for each CPU. * @@ -66,6 +64,7 @@ enum cpu_type { struct sh_cpuinfo { unsigned int type; unsigned long loops_per_jiffy; + unsigned long asid_cache; struct cache_info icache; /* Primary I-cache */ struct cache_info dcache; /* Primary D-cache */ @@ -288,5 +287,8 @@ extern int vsyscall_init(void); #define vsyscall_init() do { } while (0) #endif +/* arch/sh/kernel/setup.c */ +const char *get_cpu_subtype(struct sh_cpuinfo *c); + #endif /* __KERNEL__ */ #endif /* __ASM_SH_PROCESSOR_H */ diff --git a/include/asm-sh/rts7751r2d.h b/include/asm-sh/rts7751r2d.h index 796b8fc..10565ac 100644 --- a/include/asm-sh/rts7751r2d.h +++ b/include/asm-sh/rts7751r2d.h @@ -68,6 +68,10 @@ #define IRQ_PCISLOT2 10 /* PCI Slot #2 IRQ */ #define IRQ_EXTENTION 11 /* EXTn IRQ */ +/* arch/sh/boards/renesas/rts7751r2d/irq.c */ +void init_rts7751r2d_IRQ(void); +int rts7751r2d_irq_demux(int); + #define __IO_PREFIX rts7751r2d #include <asm/io_generic.h> diff --git a/include/asm-sh/serial.h b/include/asm-sh/serial.h index 8734590..21f6d33 100644 --- a/include/asm-sh/serial.h +++ b/include/asm-sh/serial.h @@ -9,11 +9,6 @@ #include <linux/kernel.h> -#ifdef CONFIG_SH_EC3104 -#include <asm/serial-ec3104.h> -#elif defined (CONFIG_SH_BIGSUR) -#include <asm/serial-bigsur.h> -#else /* * This assumes you have a 1.8432 MHz clock for your UART. * @@ -34,12 +29,8 @@ #else -#define SERIAL_PORT_DFNS \ - /* UART CLK PORT IRQ FLAGS */ \ - { 0, BASE_BAUD, 0x3F8, 4, STD_COM_FLAGS }, /* ttyS0 */ \ - { 0, BASE_BAUD, 0x2F8, 3, STD_COM_FLAGS } /* ttyS1 */ +#define SERIAL_PORT_DFNS #endif -#endif #endif /* _ASM_SERIAL_H */ diff --git a/include/asm-sh/thread_info.h b/include/asm-sh/thread_info.h index 879f741..279e70a 100644 --- a/include/asm-sh/thread_info.h +++ b/include/asm-sh/thread_info.h @@ -32,12 +32,20 @@ struct thread_info { #define PREEMPT_ACTIVE 0x10000000 -#ifdef CONFIG_4KSTACKS -#define THREAD_SIZE (PAGE_SIZE) +#if defined(CONFIG_4KSTACKS) +#define THREAD_SIZE_ORDER (0) +#elif defined(CONFIG_PAGE_SIZE_4KB) +#define THREAD_SIZE_ORDER (1) +#elif defined(CONFIG_PAGE_SIZE_8KB) +#define THREAD_SIZE_ORDER (1) +#elif defined(CONFIG_PAGE_SIZE_64KB) +#define THREAD_SIZE_ORDER (0) #else -#define THREAD_SIZE (PAGE_SIZE * 2) +#error "Unknown thread size" #endif -#define STACK_WARN (THREAD_SIZE / 8) + +#define THREAD_SIZE (PAGE_SIZE << THREAD_SIZE_ORDER) +#define STACK_WARN (THREAD_SIZE >> 3) /* * macros/functions for gaining access to the thread information structure diff --git a/include/asm-sh/tlbflush.h b/include/asm-sh/tlbflush.h index 28c073b..455fb8d 100644 --- a/include/asm-sh/tlbflush.h +++ b/include/asm-sh/tlbflush.h @@ -4,7 +4,6 @@ /* * TLB flushing: * - * - flush_tlb() flushes the current mm struct TLBs * - flush_tlb_all() flushes all processes TLBs * - flush_tlb_mm(mm) flushes the specified mm context TLB's * - flush_tlb_page(vma, vmaddr) flushes one page @@ -12,20 +11,45 @@ * - flush_tlb_kernel_range(start, end) flushes a range of kernel pages * - flush_tlb_pgtables(mm, start, end) flushes a range of page tables */ +extern void local_flush_tlb_all(void); +extern void local_flush_tlb_mm(struct mm_struct *mm); +extern void local_flush_tlb_range(struct vm_area_struct *vma, + unsigned long start, + unsigned long end); +extern void local_flush_tlb_page(struct vm_area_struct *vma, + unsigned long page); +extern void local_flush_tlb_kernel_range(unsigned long start, + unsigned long end); +extern void local_flush_tlb_one(unsigned long asid, unsigned long page); + +#ifdef CONFIG_SMP -extern void flush_tlb(void); extern void flush_tlb_all(void); extern void flush_tlb_mm(struct mm_struct *mm); extern void flush_tlb_range(struct vm_area_struct *vma, unsigned long start, unsigned long end); extern void flush_tlb_page(struct vm_area_struct *vma, unsigned long page); -extern void __flush_tlb_page(unsigned long asid, unsigned long page); +extern void flush_tlb_kernel_range(unsigned long start, unsigned long end); +extern void flush_tlb_one(unsigned long asid, unsigned long page); + +#else + +#define flush_tlb_all() local_flush_tlb_all() +#define flush_tlb_mm(mm) local_flush_tlb_mm(mm) +#define flush_tlb_page(vma, page) local_flush_tlb_page(vma, page) +#define flush_tlb_one(asid, page) local_flush_tlb_one(asid, page) + +#define flush_tlb_range(vma, start, end) \ + local_flush_tlb_range(vma, start, end) + +#define flush_tlb_kernel_range(start, end) \ + local_flush_tlb_kernel_range(start, end) + +#endif /* CONFIG_SMP */ static inline void flush_tlb_pgtables(struct mm_struct *mm, unsigned long start, unsigned long end) -{ /* Nothing to do */ +{ + /* Nothing to do */ } - -extern void flush_tlb_kernel_range(unsigned long start, unsigned long end); - #endif /* __ASM_SH_TLBFLUSH_H */ diff --git a/include/asm-sh/ubc.h b/include/asm-sh/ubc.h index 694f51f..ae9bbde 100644 --- a/include/asm-sh/ubc.h +++ b/include/asm-sh/ubc.h @@ -17,7 +17,7 @@ /* User Break Controller */ #if defined(CONFIG_CPU_SUBTYPE_SH7707) || defined(CONFIG_CPU_SUBTYPE_SH7709) || \ defined(CONFIG_CPU_SUBTYPE_SH7300) -#define UBC_TYPE_SH7729 (cpu_data->type == CPU_SH7729) +#define UBC_TYPE_SH7729 (current_cpu_data.type == CPU_SH7729) #else #define UBC_TYPE_SH7729 0 #endif diff --git a/include/asm-sh/unistd.h b/include/asm-sh/unistd.h index f982073..17f527b 100644 --- a/include/asm-sh/unistd.h +++ b/include/asm-sh/unistd.h @@ -292,22 +292,22 @@ #define __NR_mq_getsetattr (__NR_mq_open+5) #define __NR_kexec_load 283 #define __NR_waitid 284 -/* #define __NR_sys_setaltroot 285 */ -#define __NR_add_key 286 -#define __NR_request_key 287 -#define __NR_keyctl 288 -#define __NR_ioprio_set 289 -#define __NR_ioprio_get 290 -#define __NR_inotify_init 291 -#define __NR_inotify_add_watch 292 -#define __NR_inotify_rm_watch 293 +#define __NR_add_key 285 +#define __NR_request_key 286 +#define __NR_keyctl 287 +#define __NR_ioprio_set 288 +#define __NR_ioprio_get 289 +#define __NR_inotify_init 290 +#define __NR_inotify_add_watch 291 +#define __NR_inotify_rm_watch 292 +/* 293 is unused */ #define __NR_migrate_pages 294 #define __NR_openat 295 #define __NR_mkdirat 296 #define __NR_mknodat 297 #define __NR_fchownat 298 #define __NR_futimesat 299 -#define __NR_newfstatat 300 +#define __NR_fstatat64 300 #define __NR_unlinkat 301 #define __NR_renameat 302 #define __NR_linkat 303 diff --git a/include/asm-sh/voyagergx.h b/include/asm-sh/voyagergx.h index 99b0807..64c936b 100644 --- a/include/asm-sh/voyagergx.h +++ b/include/asm-sh/voyagergx.h @@ -308,6 +308,9 @@ #define AC97C_READ (1 << 19) #define AC97C_WD_BIT (1 << 2) #define AC97C_INDEX_MASK 0x7f -/* -------------------------------------------------------------------- */ + +/* arch/sh/cchips/voyagergx/consistent.c */ +void *voyagergx_consistent_alloc(struct device *, size_t, dma_addr_t *, gfp_t); +int voyagergx_consistent_free(struct device *, size_t, void *, dma_addr_t); #endif /* _VOYAGER_GX_REG_H */ diff --git a/include/asm-x86_64/hpet.h b/include/asm-x86_64/hpet.h index b390984..59a66f0 100644 --- a/include/asm-x86_64/hpet.h +++ b/include/asm-x86_64/hpet.h @@ -56,8 +56,15 @@ extern int is_hpet_enabled(void); extern int hpet_rtc_timer_init(void); extern int apic_is_clustered_box(void); +extern int hpet_arch_init(void); +extern int hpet_timer_stop_set_go(unsigned long tick); +extern int hpet_reenable(void); +extern unsigned int hpet_calibrate_tsc(void); extern int hpet_use_timer; +extern unsigned long hpet_address; +extern unsigned long hpet_period; +extern unsigned long hpet_tick; #ifdef CONFIG_HPET_EMULATE_RTC extern int hpet_mask_rtc_irq_bit(unsigned long bit_mask); diff --git a/include/asm-x86_64/proto.h b/include/asm-x86_64/proto.h index a6d2ff5..f54f3ab 100644 --- a/include/asm-x86_64/proto.h +++ b/include/asm-x86_64/proto.h @@ -45,11 +45,7 @@ extern u32 pmtmr_ioport; #else #define pmtmr_ioport 0 #endif -extern unsigned long long monotonic_base; -extern int sysctl_vsyscall; extern int nohpet; -extern unsigned long vxtime_hz; -extern void time_init_gtod(void); extern void early_printk(const char *fmt, ...) __attribute__((format(printf,1,2))); @@ -91,8 +87,6 @@ extern void check_efer(void); extern int unhandled_signal(struct task_struct *tsk, int sig); -extern int unsynchronized_tsc(void); - extern void select_idle_routine(const struct cpuinfo_x86 *c); extern unsigned long table_start, table_end; diff --git a/include/asm-x86_64/timex.h b/include/asm-x86_64/timex.h index b9e5320..8c6808a 100644 --- a/include/asm-x86_64/timex.h +++ b/include/asm-x86_64/timex.h @@ -12,38 +12,21 @@ #include <asm/hpet.h> #include <asm/system.h> #include <asm/processor.h> +#include <asm/tsc.h> #include <linux/compiler.h> #define CLOCK_TICK_RATE PIT_TICK_RATE /* Underlying HZ */ -typedef unsigned long long cycles_t; - -static inline cycles_t get_cycles (void) -{ - unsigned long long ret; - - rdtscll(ret); - return ret; -} - -/* Like get_cycles, but make sure the CPU is synchronized. */ -static __always_inline cycles_t get_cycles_sync(void) -{ - unsigned long long ret; - unsigned eax; - /* Don't do an additional sync on CPUs where we know - RDTSC is already synchronous. */ - alternative_io("cpuid", ASM_NOP2, X86_FEATURE_SYNC_RDTSC, - "=a" (eax), "0" (1) : "ebx","ecx","edx","memory"); - rdtscll(ret); - return ret; -} - -extern unsigned int cpu_khz; - extern int read_current_timer(unsigned long *timer_value); #define ARCH_HAS_READ_CURRENT_TIMER 1 -extern struct vxtime_data vxtime; +#define USEC_PER_TICK (USEC_PER_SEC / HZ) +#define NSEC_PER_TICK (NSEC_PER_SEC / HZ) +#define FSEC_PER_TICK (FSEC_PER_SEC / HZ) + +#define NS_SCALE 10 /* 2^10, carefully chosen */ +#define US_SCALE 32 /* 2^32, arbitralrily chosen */ +extern void mark_tsc_unstable(void); +extern void set_cyc2ns_scale(unsigned long khz); #endif diff --git a/include/asm-x86_64/tsc.h b/include/asm-x86_64/tsc.h new file mode 100644 index 0000000..9a0a368 --- /dev/null +++ b/include/asm-x86_64/tsc.h @@ -0,0 +1,66 @@ +/* + * linux/include/asm-x86_64/tsc.h + * + * x86_64 TSC related functions + */ +#ifndef _ASM_x86_64_TSC_H +#define _ASM_x86_64_TSC_H + +#include <asm/processor.h> + +/* + * Standard way to access the cycle counter. + */ +typedef unsigned long long cycles_t; + +extern unsigned int cpu_khz; +extern unsigned int tsc_khz; + +static inline cycles_t get_cycles(void) +{ + unsigned long long ret = 0; + +#ifndef CONFIG_X86_TSC + if (!cpu_has_tsc) + return 0; +#endif + +#if defined(CONFIG_X86_GENERIC) || defined(CONFIG_X86_TSC) + rdtscll(ret); +#endif + return ret; +} + +/* Like get_cycles, but make sure the CPU is synchronized. */ +static __always_inline cycles_t get_cycles_sync(void) +{ + unsigned long long ret; +#ifdef X86_FEATURE_SYNC_RDTSC + unsigned eax; + + /* + * Don't do an additional sync on CPUs where we know + * RDTSC is already synchronous: + */ + alternative_io("cpuid", ASM_NOP2, X86_FEATURE_SYNC_RDTSC, + "=a" (eax), "0" (1) : "ebx","ecx","edx","memory"); +#else + sync_core(); +#endif + rdtscll(ret); + + return ret; +} + +extern void tsc_init(void); +extern void mark_tsc_unstable(void); +extern int unsynchronized_tsc(void); + +/* + * Boot-time check whether the TSCs are synchronized across + * all CPUs/cores: + */ +extern void check_tsc_sync_source(int cpu); +extern void check_tsc_sync_target(void); + +#endif diff --git a/include/asm-x86_64/vsyscall.h b/include/asm-x86_64/vsyscall.h index 0c78471..82b4afe 100644 --- a/include/asm-x86_64/vsyscall.h +++ b/include/asm-x86_64/vsyscall.h @@ -16,46 +16,27 @@ enum vsyscall_num { #ifdef __KERNEL__ #include <linux/seqlock.h> -#define __section_vxtime __attribute__ ((unused, __section__ (".vxtime"), aligned(16))) #define __section_vgetcpu_mode __attribute__ ((unused, __section__ (".vgetcpu_mode"), aligned(16))) #define __section_jiffies __attribute__ ((unused, __section__ (".jiffies"), aligned(16))) -#define __section_sys_tz __attribute__ ((unused, __section__ (".sys_tz"), aligned(16))) -#define __section_sysctl_vsyscall __attribute__ ((unused, __section__ (".sysctl_vsyscall"), aligned(16))) -#define __section_xtime __attribute__ ((unused, __section__ (".xtime"), aligned(16))) -#define __section_xtime_lock __attribute__ ((unused, __section__ (".xtime_lock"), aligned(16))) -#define VXTIME_TSC 1 -#define VXTIME_HPET 2 -#define VXTIME_PMTMR 3 +/* Definitions for CONFIG_GENERIC_TIME definitions */ +#define __section_vsyscall_gtod_data __attribute__ \ + ((unused, __section__ (".vsyscall_gtod_data"),aligned(16))) +#define __vsyscall_fn __attribute__ ((unused,__section__(".vsyscall_fn"))) #define VGETCPU_RDTSCP 1 #define VGETCPU_LSL 2 -struct vxtime_data { - long hpet_address; /* HPET base address */ - int last; - unsigned long last_tsc; - long quot; - long tsc_quot; - int mode; -}; - #define hpet_readl(a) readl((const void __iomem *)fix_to_virt(FIX_HPET_BASE) + a) #define hpet_writel(d,a) writel(d, (void __iomem *)fix_to_virt(FIX_HPET_BASE) + a) -/* vsyscall space (readonly) */ -extern struct vxtime_data __vxtime; extern int __vgetcpu_mode; -extern struct timespec __xtime; extern volatile unsigned long __jiffies; -extern struct timezone __sys_tz; -extern seqlock_t __xtime_lock; /* kernel space (writeable) */ -extern struct vxtime_data vxtime; extern int vgetcpu_mode; extern struct timezone sys_tz; -extern int sysctl_vsyscall; +extern struct vsyscall_gtod_data_t vsyscall_gtod_data; #endif /* __KERNEL__ */ diff --git a/include/linux/acpi.h b/include/linux/acpi.h index 815f1fb..8bcfaa4 100644 --- a/include/linux/acpi.h +++ b/include/linux/acpi.h @@ -75,7 +75,7 @@ enum acpi_address_range_id { typedef int (*acpi_table_handler) (struct acpi_table_header *table); -typedef int (*acpi_madt_entry_handler) (struct acpi_subtable_header *header, const unsigned long end); +typedef int (*acpi_table_entry_handler) (struct acpi_subtable_header *header, const unsigned long end); char * __acpi_map_table (unsigned long phys_addr, unsigned long size); unsigned long acpi_find_rsdp (void); @@ -85,8 +85,10 @@ int acpi_numa_init (void); int acpi_table_init (void); int acpi_table_parse (char *id, acpi_table_handler handler); -int acpi_table_parse_madt (enum acpi_madt_type id, acpi_madt_entry_handler handler, unsigned int max_entries); -int acpi_table_parse_srat (enum acpi_srat_type id, acpi_madt_entry_handler handler, unsigned int max_entries); +int __init acpi_table_parse_entries(char *id, unsigned long table_size, + int entry_id, acpi_table_entry_handler handler, unsigned int max_entries); +int acpi_table_parse_madt (enum acpi_madt_type id, acpi_table_entry_handler handler, unsigned int max_entries); +int acpi_table_parse_srat (enum acpi_srat_type id, acpi_table_entry_handler handler, unsigned int max_entries); int acpi_parse_mcfg (struct acpi_table_header *header); void acpi_table_print_madt_entry (struct acpi_subtable_header *madt); void acpi_table_print_srat_entry (struct acpi_subtable_header *srat); diff --git a/include/linux/acpi_pmtmr.h b/include/linux/acpi_pmtmr.h new file mode 100644 index 0000000..1d0ef1a --- /dev/null +++ b/include/linux/acpi_pmtmr.h @@ -0,0 +1,38 @@ +#ifndef _ACPI_PMTMR_H_ +#define _ACPI_PMTMR_H_ + +#include <linux/clocksource.h> + +/* Number of PMTMR ticks expected during calibration run */ +#define PMTMR_TICKS_PER_SEC 3579545 + +/* limit it to 24 bits */ +#define ACPI_PM_MASK CLOCKSOURCE_MASK(24) + +/* Overrun value */ +#define ACPI_PM_OVRRUN (1<<24) + +#ifdef CONFIG_X86_PM_TIMER + +extern u32 acpi_pm_read_verified(void); +extern u32 pmtmr_ioport; + +static inline u32 acpi_pm_read_early(void) +{ + if (!pmtmr_ioport) + return 0; + /* mask the output to 24 bits */ + return acpi_pm_read_verified() & ACPI_PM_MASK; +} + +#else + +static inline u32 acpi_pm_read_early(void) +{ + return 0; +} + +#endif + +#endif + diff --git a/include/linux/agp_backend.h b/include/linux/agp_backend.h index a5c8bb5..abc521c 100644 --- a/include/linux/agp_backend.h +++ b/include/linux/agp_backend.h @@ -87,10 +87,15 @@ struct agp_memory { u32 physical; u8 is_bound; u8 is_flushed; + u8 vmalloc_flag; }; #define AGP_NORMAL_MEMORY 0 +#define AGP_USER_TYPES (1 << 16) +#define AGP_USER_MEMORY (AGP_USER_TYPES) +#define AGP_USER_CACHED_MEMORY (AGP_USER_TYPES + 1) + extern struct agp_bridge_data *agp_bridge; extern struct list_head agp_bridges; diff --git a/include/linux/ata.h b/include/linux/ata.h index 18e401f..272736e 100644 --- a/include/linux/ata.h +++ b/include/linux/ata.h @@ -352,7 +352,7 @@ static inline int ata_drive_40wire(const u16 *dev_id) { if (ata_id_major_version(dev_id) >= 5 && ata_id_is_sata(dev_id)) return 0; /* SATA */ - if (dev_id[93] & 0x4000) + if ((dev_id[93] & 0xE000) == 0x6000) return 0; /* 80 wire */ return 1; } diff --git a/include/linux/clockchips.h b/include/linux/clockchips.h new file mode 100644 index 0000000..4ea7e7b --- /dev/null +++ b/include/linux/clockchips.h @@ -0,0 +1,142 @@ +/* linux/include/linux/clockchips.h + * + * This file contains the structure definitions for clockchips. + * + * If you are not a clockchip, or the time of day code, you should + * not be including this file! + */ +#ifndef _LINUX_CLOCKCHIPS_H +#define _LINUX_CLOCKCHIPS_H + +#ifdef CONFIG_GENERIC_CLOCKEVENTS + +#include <linux/clocksource.h> +#include <linux/cpumask.h> +#include <linux/ktime.h> +#include <linux/notifier.h> + +struct clock_event_device; + +/* Clock event mode commands */ +enum clock_event_mode { + CLOCK_EVT_MODE_UNUSED = 0, + CLOCK_EVT_MODE_SHUTDOWN, + CLOCK_EVT_MODE_PERIODIC, + CLOCK_EVT_MODE_ONESHOT, +}; + +/* Clock event notification values */ +enum clock_event_nofitiers { + CLOCK_EVT_NOTIFY_ADD, + CLOCK_EVT_NOTIFY_BROADCAST_ON, + CLOCK_EVT_NOTIFY_BROADCAST_OFF, + CLOCK_EVT_NOTIFY_BROADCAST_ENTER, + CLOCK_EVT_NOTIFY_BROADCAST_EXIT, + CLOCK_EVT_NOTIFY_SUSPEND, + CLOCK_EVT_NOTIFY_RESUME, + CLOCK_EVT_NOTIFY_CPU_DEAD, +}; + +/* + * Clock event features + */ +#define CLOCK_EVT_FEAT_PERIODIC 0x000001 +#define CLOCK_EVT_FEAT_ONESHOT 0x000002 +/* + * x86(64) specific misfeatures: + * + * - Clockevent source stops in C3 State and needs broadcast support. + * - Local APIC timer is used as a dummy device. + */ +#define CLOCK_EVT_FEAT_C3STOP 0x000004 +#define CLOCK_EVT_FEAT_DUMMY 0x000008 + +/** + * struct clock_event_device - clock event device descriptor + * @name: ptr to clock event name + * @hints: usage hints + * @max_delta_ns: maximum delta value in ns + * @min_delta_ns: minimum delta value in ns + * @mult: nanosecond to cycles multiplier + * @shift: nanoseconds to cycles divisor (power of two) + * @rating: variable to rate clock event devices + * @irq: irq number (only for non cpu local devices) + * @cpumask: cpumask to indicate for which cpus this device works + * @set_next_event: set next event + * @set_mode: set mode function + * @evthandler: Assigned by the framework to be called by the low + * level handler of the event source + * @broadcast: function to broadcast events + * @list: list head for the management code + * @mode: operating mode assigned by the management code + * @next_event: local storage for the next event in oneshot mode + */ +struct clock_event_device { + const char *name; + unsigned int features; + unsigned long max_delta_ns; + unsigned long min_delta_ns; + unsigned long mult; + int shift; + int rating; + int irq; + cpumask_t cpumask; + int (*set_next_event)(unsigned long evt, + struct clock_event_device *); + void (*set_mode)(enum clock_event_mode mode, + struct clock_event_device *); + void (*event_handler)(struct clock_event_device *); + void (*broadcast)(cpumask_t mask); + struct list_head list; + enum clock_event_mode mode; + ktime_t next_event; +}; + +/* + * Calculate a multiplication factor for scaled math, which is used to convert + * nanoseconds based values to clock ticks: + * + * clock_ticks = (nanoseconds * factor) >> shift. + * + * div_sc is the rearranged equation to calculate a factor from a given clock + * ticks / nanoseconds ratio: + * + * factor = (clock_ticks << shift) / nanoseconds + */ +static inline unsigned long div_sc(unsigned long ticks, unsigned long nsec, + int shift) +{ + uint64_t tmp = ((uint64_t)ticks) << shift; + + do_div(tmp, nsec); + return (unsigned long) tmp; +} + +/* Clock event layer functions */ +extern unsigned long clockevent_delta2ns(unsigned long latch, + struct clock_event_device *evt); +extern void clockevents_register_device(struct clock_event_device *dev); + +extern void clockevents_exchange_device(struct clock_event_device *old, + struct clock_event_device *new); +extern +struct clock_event_device *clockevents_request_device(unsigned int features, + cpumask_t cpumask); +extern void clockevents_release_device(struct clock_event_device *dev); +extern void clockevents_set_mode(struct clock_event_device *dev, + enum clock_event_mode mode); +extern int clockevents_register_notifier(struct notifier_block *nb); +extern void clockevents_unregister_notifier(struct notifier_block *nb); +extern int clockevents_program_event(struct clock_event_device *dev, + ktime_t expires, ktime_t now); + +extern void clockevents_notify(unsigned long reason, void *arg); + +#else + +static inline void clockevents_resume_events(void) { } +#define clockevents_notify(reason, arg) do { } while (0) + +#endif + +#endif diff --git a/include/linux/clocksource.h b/include/linux/clocksource.h index 1622d23..daa4940 100644 --- a/include/linux/clocksource.h +++ b/include/linux/clocksource.h @@ -12,11 +12,13 @@ #include <linux/timex.h> #include <linux/time.h> #include <linux/list.h> +#include <linux/timer.h> #include <asm/div64.h> #include <asm/io.h> /* clocksource cycle base type */ typedef u64 cycle_t; +struct clocksource; /** * struct clocksource - hardware abstraction for a free running counter @@ -44,8 +46,8 @@ typedef u64 cycle_t; * subtraction of non 64 bit counters * @mult: cycle to nanosecond multiplier * @shift: cycle to nanosecond divisor (power of two) - * @update_callback: called when safe to alter clocksource values - * @is_continuous: defines if clocksource is free-running. + * @flags: flags describing special properties + * @vread: vsyscall based read * @cycle_interval: Used internally by timekeeping core, please ignore. * @xtime_interval: Used internally by timekeeping core, please ignore. */ @@ -57,15 +59,30 @@ struct clocksource { cycle_t mask; u32 mult; u32 shift; - int (*update_callback)(void); - int is_continuous; + unsigned long flags; + cycle_t (*vread)(void); /* timekeeping specific data, ignore */ cycle_t cycle_last, cycle_interval; u64 xtime_nsec, xtime_interval; s64 error; + +#ifdef CONFIG_CLOCKSOURCE_WATCHDOG + /* Watchdog related data, used by the framework */ + struct list_head wd_list; + cycle_t wd_last; +#endif }; +/* + * Clock source flags bits:: + */ +#define CLOCK_SOURCE_IS_CONTINUOUS 0x01 +#define CLOCK_SOURCE_MUST_VERIFY 0x02 + +#define CLOCK_SOURCE_WATCHDOG 0x10 +#define CLOCK_SOURCE_VALID_FOR_HRES 0x20 + /* simplify initialization of mask field */ #define CLOCKSOURCE_MASK(bits) (cycle_t)(bits<64 ? ((1ULL<<bits)-1) : -1) @@ -178,8 +195,16 @@ static inline void clocksource_calculate_interval(struct clocksource *c, /* used to install a new clocksource */ -int clocksource_register(struct clocksource*); -void clocksource_reselect(void); -struct clocksource* clocksource_get_next(void); +extern int clocksource_register(struct clocksource*); +extern struct clocksource* clocksource_get_next(void); +extern void clocksource_change_rating(struct clocksource *cs, int rating); + +#ifdef CONFIG_GENERIC_TIME_VSYSCALL +extern void update_vsyscall(struct timespec *ts, struct clocksource *c); +#else +static inline void update_vsyscall(struct timespec *ts, struct clocksource *c) +{ +} +#endif #endif /* _LINUX_CLOCKSOURCE_H */ diff --git a/include/linux/cpufreq.h b/include/linux/cpufreq.h index 7f008f6..0899e2c 100644 --- a/include/linux/cpufreq.h +++ b/include/linux/cpufreq.h @@ -84,9 +84,6 @@ struct cpufreq_policy { unsigned int policy; /* see above */ struct cpufreq_governor *governor; /* see below */ - struct mutex lock; /* CPU ->setpolicy or ->target may - only be called once a time */ - struct work_struct update; /* if update_policy() needs to be * called, but you're in IRQ context */ @@ -172,11 +169,16 @@ extern int __cpufreq_driver_target(struct cpufreq_policy *policy, unsigned int relation); -extern int cpufreq_driver_getavg(struct cpufreq_policy *policy); +extern int __cpufreq_driver_getavg(struct cpufreq_policy *policy); int cpufreq_register_governor(struct cpufreq_governor *governor); void cpufreq_unregister_governor(struct cpufreq_governor *governor); +int lock_policy_rwsem_read(int cpu); +int lock_policy_rwsem_write(int cpu); +void unlock_policy_rwsem_read(int cpu); +void unlock_policy_rwsem_write(int cpu); + /********************************************************************* * CPUFREQ DRIVER INTERFACE * diff --git a/include/linux/hardirq.h b/include/linux/hardirq.h index 612472a..7803014 100644 --- a/include/linux/hardirq.h +++ b/include/linux/hardirq.h @@ -106,7 +106,7 @@ static inline void account_system_vtime(struct task_struct *tsk) * always balanced, so the interrupted value of ->hardirq_context * will always be restored. */ -#define irq_enter() \ +#define __irq_enter() \ do { \ account_system_vtime(current); \ add_preempt_count(HARDIRQ_OFFSET); \ @@ -114,6 +114,11 @@ static inline void account_system_vtime(struct task_struct *tsk) } while (0) /* + * Enter irq context (on NO_HZ, update jiffies): + */ +extern void irq_enter(void); + +/* * Exit irq context without processing softirqs: */ #define __irq_exit() \ @@ -128,7 +133,7 @@ static inline void account_system_vtime(struct task_struct *tsk) */ extern void irq_exit(void); -#define nmi_enter() do { lockdep_off(); irq_enter(); } while (0) +#define nmi_enter() do { lockdep_off(); __irq_enter(); } while (0) #define nmi_exit() do { __irq_exit(); lockdep_on(); } while (0) #endif /* LINUX_HARDIRQ_H */ diff --git a/include/linux/hrtimer.h b/include/linux/hrtimer.h index fca9302..37f9279 100644 --- a/include/linux/hrtimer.h +++ b/include/linux/hrtimer.h @@ -21,22 +21,72 @@ #include <linux/list.h> #include <linux/wait.h> +struct hrtimer_clock_base; +struct hrtimer_cpu_base; + /* * Mode arguments of xxx_hrtimer functions: */ enum hrtimer_mode { - HRTIMER_ABS, /* Time value is absolute */ - HRTIMER_REL, /* Time value is relative to now */ + HRTIMER_MODE_ABS, /* Time value is absolute */ + HRTIMER_MODE_REL, /* Time value is relative to now */ }; +/* + * Return values for the callback function + */ enum hrtimer_restart { - HRTIMER_NORESTART, - HRTIMER_RESTART, + HRTIMER_NORESTART, /* Timer is not restarted */ + HRTIMER_RESTART, /* Timer must be restarted */ }; -#define HRTIMER_INACTIVE ((void *)1UL) +/* + * hrtimer callback modes: + * + * HRTIMER_CB_SOFTIRQ: Callback must run in softirq context + * HRTIMER_CB_IRQSAFE: Callback may run in hardirq context + * HRTIMER_CB_IRQSAFE_NO_RESTART: Callback may run in hardirq context and + * does not restart the timer + * HRTIMER_CB_IRQSAFE_NO_SOFTIRQ: Callback must run in softirq context + * Special mode for tick emultation + */ +enum hrtimer_cb_mode { + HRTIMER_CB_SOFTIRQ, + HRTIMER_CB_IRQSAFE, + HRTIMER_CB_IRQSAFE_NO_RESTART, + HRTIMER_CB_IRQSAFE_NO_SOFTIRQ, +}; -struct hrtimer_base; +/* + * Values to track state of the timer + * + * Possible states: + * + * 0x00 inactive + * 0x01 enqueued into rbtree + * 0x02 callback function running + * 0x04 callback pending (high resolution mode) + * + * Special case: + * 0x03 callback function running and enqueued + * (was requeued on another CPU) + * The "callback function running and enqueued" status is only possible on + * SMP. It happens for example when a posix timer expired and the callback + * queued a signal. Between dropping the lock which protects the posix timer + * and reacquiring the base lock of the hrtimer, another CPU can deliver the + * signal and rearm the timer. We have to preserve the callback running state, + * as otherwise the timer could be removed before the softirq code finishes the + * the handling of the timer. + * + * The HRTIMER_STATE_ENQUEUE bit is always or'ed to the current state to + * preserve the HRTIMER_STATE_CALLBACK bit in the above scenario. + * + * All state transitions are protected by cpu_base->lock. + */ +#define HRTIMER_STATE_INACTIVE 0x00 +#define HRTIMER_STATE_ENQUEUED 0x01 +#define HRTIMER_STATE_CALLBACK 0x02 +#define HRTIMER_STATE_PENDING 0x04 /** * struct hrtimer - the basic hrtimer structure @@ -46,14 +96,34 @@ struct hrtimer_base; * which the timer is based. * @function: timer expiry callback function * @base: pointer to the timer base (per cpu and per clock) + * @state: state information (See bit values above) + * @cb_mode: high resolution timer feature to select the callback execution + * mode + * @cb_entry: list head to enqueue an expired timer into the callback list + * @start_site: timer statistics field to store the site where the timer + * was started + * @start_comm: timer statistics field to store the name of the process which + * started the timer + * @start_pid: timer statistics field to store the pid of the task which + * started the timer * - * The hrtimer structure must be initialized by init_hrtimer_#CLOCKTYPE() + * The hrtimer structure must be initialized by hrtimer_init() */ struct hrtimer { - struct rb_node node; - ktime_t expires; - int (*function)(struct hrtimer *); - struct hrtimer_base *base; + struct rb_node node; + ktime_t expires; + enum hrtimer_restart (*function)(struct hrtimer *); + struct hrtimer_clock_base *base; + unsigned long state; +#ifdef CONFIG_HIGH_RES_TIMERS + enum hrtimer_cb_mode cb_mode; + struct list_head cb_entry; +#endif +#ifdef CONFIG_TIMER_STATS + void *start_site; + char start_comm[16]; + int start_pid; +#endif }; /** @@ -70,37 +140,114 @@ struct hrtimer_sleeper { /** * struct hrtimer_base - the timer base for a specific clock - * @index: clock type index for per_cpu support when moving a timer - * to a base on another cpu. - * @lock: lock protecting the base and associated timers + * @index: clock type index for per_cpu support when moving a + * timer to a base on another cpu. * @active: red black tree root node for the active timers * @first: pointer to the timer node which expires first * @resolution: the resolution of the clock, in nanoseconds * @get_time: function to retrieve the current time of the clock * @get_softirq_time: function to retrieve the current time from the softirq - * @curr_timer: the timer which is executing a callback right now * @softirq_time: the time when running the hrtimer queue in the softirq - * @lock_key: the lock_class_key for use with lockdep + * @cb_pending: list of timers where the callback is pending + * @offset: offset of this clock to the monotonic base + * @reprogram: function to reprogram the timer event */ -struct hrtimer_base { +struct hrtimer_clock_base { + struct hrtimer_cpu_base *cpu_base; clockid_t index; - spinlock_t lock; struct rb_root active; struct rb_node *first; ktime_t resolution; ktime_t (*get_time)(void); ktime_t (*get_softirq_time)(void); - struct hrtimer *curr_timer; ktime_t softirq_time; - struct lock_class_key lock_key; +#ifdef CONFIG_HIGH_RES_TIMERS + ktime_t offset; + int (*reprogram)(struct hrtimer *t, + struct hrtimer_clock_base *b, + ktime_t n); +#endif +}; + +#define HRTIMER_MAX_CLOCK_BASES 2 + +/* + * struct hrtimer_cpu_base - the per cpu clock bases + * @lock: lock protecting the base and associated clock bases + * and timers + * @lock_key: the lock_class_key for use with lockdep + * @clock_base: array of clock bases for this cpu + * @curr_timer: the timer which is executing a callback right now + * @expires_next: absolute time of the next event which was scheduled + * via clock_set_next_event() + * @hres_active: State of high resolution mode + * @check_clocks: Indictator, when set evaluate time source and clock + * event devices whether high resolution mode can be + * activated. + * @cb_pending: Expired timers are moved from the rbtree to this + * list in the timer interrupt. The list is processed + * in the softirq. + * @nr_events: Total number of timer interrupt events + */ +struct hrtimer_cpu_base { + spinlock_t lock; + struct lock_class_key lock_key; + struct hrtimer_clock_base clock_base[HRTIMER_MAX_CLOCK_BASES]; +#ifdef CONFIG_HIGH_RES_TIMERS + ktime_t expires_next; + int hres_active; + struct list_head cb_pending; + unsigned long nr_events; +#endif }; +#ifdef CONFIG_HIGH_RES_TIMERS +struct clock_event_device; + +extern void clock_was_set(void); +extern void hrtimer_interrupt(struct clock_event_device *dev); + +/* + * In high resolution mode the time reference must be read accurate + */ +static inline ktime_t hrtimer_cb_get_time(struct hrtimer *timer) +{ + return timer->base->get_time(); +} + +/* + * The resolution of the clocks. The resolution value is returned in + * the clock_getres() system call to give application programmers an + * idea of the (in)accuracy of timers. Timer values are rounded up to + * this resolution values. + */ +# define KTIME_HIGH_RES (ktime_t) { .tv64 = 1 } +# define KTIME_MONOTONIC_RES KTIME_HIGH_RES + +#else + +# define KTIME_MONOTONIC_RES KTIME_LOW_RES + /* * clock_was_set() is a NOP for non- high-resolution systems. The * time-sorted order guarantees that a timer does not expire early and * is expired in the next softirq when the clock was advanced. */ -#define clock_was_set() do { } while (0) +static inline void clock_was_set(void) { } + +/* + * In non high resolution mode the time reference is taken from + * the base softirq time variable. + */ +static inline ktime_t hrtimer_cb_get_time(struct hrtimer *timer) +{ + return timer->base->softirq_time; +} + +#endif + +extern ktime_t ktime_get(void); +extern ktime_t ktime_get_real(void); /* Exported timer functions: */ @@ -114,19 +261,33 @@ extern int hrtimer_start(struct hrtimer *timer, ktime_t tim, extern int hrtimer_cancel(struct hrtimer *timer); extern int hrtimer_try_to_cancel(struct hrtimer *timer); -#define hrtimer_restart(timer) hrtimer_start((timer), (timer)->expires, HRTIMER_ABS) +static inline int hrtimer_restart(struct hrtimer *timer) +{ + return hrtimer_start(timer, timer->expires, HRTIMER_MODE_ABS); +} /* Query timers: */ extern ktime_t hrtimer_get_remaining(const struct hrtimer *timer); extern int hrtimer_get_res(const clockid_t which_clock, struct timespec *tp); -#ifdef CONFIG_NO_IDLE_HZ extern ktime_t hrtimer_get_next_event(void); -#endif +/* + * A timer is active, when it is enqueued into the rbtree or the callback + * function is running. + */ static inline int hrtimer_active(const struct hrtimer *timer) { - return rb_parent(&timer->node) != &timer->node; + return timer->state != HRTIMER_STATE_INACTIVE; +} + +/* + * Helper function to check, whether the timer is on one of the queues + */ +static inline int hrtimer_is_queued(struct hrtimer *timer) +{ + return timer->state & + (HRTIMER_STATE_ENQUEUED | HRTIMER_STATE_PENDING); } /* Forward a hrtimer so it expires after now: */ @@ -149,4 +310,53 @@ extern void hrtimer_run_queues(void); /* Bootup initialization: */ extern void __init hrtimers_init(void); +#if BITS_PER_LONG < 64 +extern unsigned long ktime_divns(const ktime_t kt, s64 div); +#else /* BITS_PER_LONG < 64 */ +# define ktime_divns(kt, div) (unsigned long)((kt).tv64 / (div)) +#endif + +/* Show pending timers: */ +extern void sysrq_timer_list_show(void); + +/* + * Timer-statistics info: + */ +#ifdef CONFIG_TIMER_STATS + +extern void timer_stats_update_stats(void *timer, pid_t pid, void *startf, + void *timerf, char * comm); + +static inline void timer_stats_account_hrtimer(struct hrtimer *timer) +{ + timer_stats_update_stats(timer, timer->start_pid, timer->start_site, + timer->function, timer->start_comm); +} + +extern void __timer_stats_hrtimer_set_start_info(struct hrtimer *timer, + void *addr); + +static inline void timer_stats_hrtimer_set_start_info(struct hrtimer *timer) +{ + __timer_stats_hrtimer_set_start_info(timer, __builtin_return_address(0)); +} + +static inline void timer_stats_hrtimer_clear_start_info(struct hrtimer *timer) +{ + timer->start_site = NULL; +} +#else +static inline void timer_stats_account_hrtimer(struct hrtimer *timer) +{ +} + +static inline void timer_stats_hrtimer_set_start_info(struct hrtimer *timer) +{ +} + +static inline void timer_stats_hrtimer_clear_start_info(struct hrtimer *timer) +{ +} +#endif + #endif diff --git a/include/linux/interrupt.h b/include/linux/interrupt.h index 5a8ba0b..e5ea141 100644 --- a/include/linux/interrupt.h +++ b/include/linux/interrupt.h @@ -42,6 +42,8 @@ * IRQF_SHARED - allow sharing the irq among several devices * IRQF_PROBE_SHARED - set by callers when they expect sharing mismatches to occur * IRQF_TIMER - Flag to mark this interrupt as timer interrupt + * IRQF_PERCPU - Interrupt is per cpu + * IRQF_NOBALANCING - Flag to exclude this interrupt from irq balancing */ #define IRQF_DISABLED 0x00000020 #define IRQF_SAMPLE_RANDOM 0x00000040 @@ -49,6 +51,7 @@ #define IRQF_PROBE_SHARED 0x00000100 #define IRQF_TIMER 0x00000200 #define IRQF_PERCPU 0x00000400 +#define IRQF_NOBALANCING 0x00000800 /* * Migration helpers. Scheduled for removal in 1/2007 @@ -239,6 +242,9 @@ enum BLOCK_SOFTIRQ, TASKLET_SOFTIRQ, SCHED_SOFTIRQ, +#ifdef CONFIG_HIGH_RES_TIMERS + HRTIMER_SOFTIRQ, +#endif }; /* softirq mask and active fields moved to irq_cpustat_t in diff --git a/include/linux/irq.h b/include/linux/irq.h index 5504b67..1939d42 100644 --- a/include/linux/irq.h +++ b/include/linux/irq.h @@ -31,7 +31,7 @@ typedef void fastcall (*irq_flow_handler_t)(unsigned int irq, /* * IRQ line status. * - * Bits 0-16 are reserved for the IRQF_* bits in linux/interrupt.h + * Bits 0-7 are reserved for the IRQF_* bits in linux/interrupt.h * * IRQ types */ @@ -45,28 +45,30 @@ typedef void fastcall (*irq_flow_handler_t)(unsigned int irq, #define IRQ_TYPE_PROBE 0x00000010 /* Probing in progress */ /* Internal flags */ -#define IRQ_INPROGRESS 0x00010000 /* IRQ handler active - do not enter! */ -#define IRQ_DISABLED 0x00020000 /* IRQ disabled - do not enter! */ -#define IRQ_PENDING 0x00040000 /* IRQ pending - replay on enable */ -#define IRQ_REPLAY 0x00080000 /* IRQ has been replayed but not acked yet */ -#define IRQ_AUTODETECT 0x00100000 /* IRQ is being autodetected */ -#define IRQ_WAITING 0x00200000 /* IRQ not yet seen - for autodetection */ -#define IRQ_LEVEL 0x00400000 /* IRQ level triggered */ -#define IRQ_MASKED 0x00800000 /* IRQ masked - shouldn't be seen again */ -#define IRQ_PER_CPU 0x01000000 /* IRQ is per CPU */ +#define IRQ_INPROGRESS 0x00000100 /* IRQ handler active - do not enter! */ +#define IRQ_DISABLED 0x00000200 /* IRQ disabled - do not enter! */ +#define IRQ_PENDING 0x00000400 /* IRQ pending - replay on enable */ +#define IRQ_REPLAY 0x00000800 /* IRQ has been replayed but not acked yet */ +#define IRQ_AUTODETECT 0x00001000 /* IRQ is being autodetected */ +#define IRQ_WAITING 0x00002000 /* IRQ not yet seen - for autodetection */ +#define IRQ_LEVEL 0x00004000 /* IRQ level triggered */ +#define IRQ_MASKED 0x00008000 /* IRQ masked - shouldn't be seen again */ +#define IRQ_PER_CPU 0x00010000 /* IRQ is per CPU */ +#define IRQ_NOPROBE 0x00020000 /* IRQ is not valid for probing */ +#define IRQ_NOREQUEST 0x00040000 /* IRQ cannot be requested */ +#define IRQ_NOAUTOEN 0x00080000 /* IRQ will not be enabled on request irq */ +#define IRQ_WAKEUP 0x00100000 /* IRQ triggers system wakeup */ +#define IRQ_MOVE_PENDING 0x00200000 /* need to re-target IRQ destination */ +#define IRQ_NO_BALANCING 0x00400000 /* IRQ is excluded from balancing */ + #ifdef CONFIG_IRQ_PER_CPU # define CHECK_IRQ_PER_CPU(var) ((var) & IRQ_PER_CPU) +# define IRQ_NO_BALANCING_MASK (IRQ_PER_CPU | IRQ_NO_BALANCING) #else # define CHECK_IRQ_PER_CPU(var) 0 +# define IRQ_NO_BALANCING_MASK IRQ_NO_BALANCING #endif -#define IRQ_NOPROBE 0x02000000 /* IRQ is not valid for probing */ -#define IRQ_NOREQUEST 0x04000000 /* IRQ cannot be requested */ -#define IRQ_NOAUTOEN 0x08000000 /* IRQ will not be enabled on request irq */ -#define IRQ_DELAYED_DISABLE 0x10000000 /* IRQ disable (masking) happens delayed. */ -#define IRQ_WAKEUP 0x20000000 /* IRQ triggers system wakeup */ -#define IRQ_MOVE_PENDING 0x40000000 /* need to re-target IRQ destination */ - struct proc_dir_entry; struct msi_desc; @@ -127,6 +129,7 @@ struct irq_chip { * * @handle_irq: highlevel irq-events handler [if NULL, __do_IRQ()] * @chip: low level interrupt hardware access + * @msi_desc: MSI descriptor * @handler_data: per-IRQ data for the irq_chip methods * @chip_data: platform-specific per-chip private data for the chip * methods, to allow shared chip implementations @@ -235,11 +238,21 @@ static inline void set_pending_irq(unsigned int irq, cpumask_t mask) #endif /* CONFIG_GENERIC_PENDING_IRQ */ +extern int irq_set_affinity(unsigned int irq, cpumask_t cpumask); +extern int irq_can_set_affinity(unsigned int irq); + #else /* CONFIG_SMP */ #define move_native_irq(x) #define move_masked_irq(x) +static inline int irq_set_affinity(unsigned int irq, cpumask_t cpumask) +{ + return -EINVAL; +} + +static inline int irq_can_set_affinity(unsigned int irq) { return 0; } + #endif /* CONFIG_SMP */ #ifdef CONFIG_IRQBALANCE @@ -261,6 +274,11 @@ static inline int select_smp_affinity(unsigned int irq) extern int no_irq_affinity; +static inline int irq_balancing_disabled(unsigned int irq) +{ + return irq_desc[irq].status & IRQ_NO_BALANCING_MASK; +} + /* Handle irq action chains: */ extern int handle_IRQ_event(unsigned int irq, struct irqaction *action); diff --git a/include/linux/jiffies.h b/include/linux/jiffies.h index 0ec6e28..c080f61 100644 --- a/include/linux/jiffies.h +++ b/include/linux/jiffies.h @@ -142,13 +142,13 @@ static inline u64 get_jiffies_64(void) * * And some not so obvious. * - * Note that we don't want to return MAX_LONG, because + * Note that we don't want to return LONG_MAX, because * for various timeout reasons we often end up having * to wait "jiffies+1" in order to guarantee that we wait * at _least_ "jiffies" - so "jiffies+1" had better still * be positive. */ -#define MAX_JIFFY_OFFSET ((~0UL >> 1)-1) +#define MAX_JIFFY_OFFSET ((LONG_MAX >> 1)-1) /* * We want to do realistic conversions of time so we need to use the same @@ -259,207 +259,23 @@ static inline u64 get_jiffies_64(void) #endif /* - * Convert jiffies to milliseconds and back. - * - * Avoid unnecessary multiplications/divisions in the - * two most common HZ cases: - */ -static inline unsigned int jiffies_to_msecs(const unsigned long j) -{ -#if HZ <= MSEC_PER_SEC && !(MSEC_PER_SEC % HZ) - return (MSEC_PER_SEC / HZ) * j; -#elif HZ > MSEC_PER_SEC && !(HZ % MSEC_PER_SEC) - return (j + (HZ / MSEC_PER_SEC) - 1)/(HZ / MSEC_PER_SEC); -#else - return (j * MSEC_PER_SEC) / HZ; -#endif -} - -static inline unsigned int jiffies_to_usecs(const unsigned long j) -{ -#if HZ <= USEC_PER_SEC && !(USEC_PER_SEC % HZ) - return (USEC_PER_SEC / HZ) * j; -#elif HZ > USEC_PER_SEC && !(HZ % USEC_PER_SEC) - return (j + (HZ / USEC_PER_SEC) - 1)/(HZ / USEC_PER_SEC); -#else - return (j * USEC_PER_SEC) / HZ; -#endif -} - -static inline unsigned long msecs_to_jiffies(const unsigned int m) -{ - if (m > jiffies_to_msecs(MAX_JIFFY_OFFSET)) - return MAX_JIFFY_OFFSET; -#if HZ <= MSEC_PER_SEC && !(MSEC_PER_SEC % HZ) - return (m + (MSEC_PER_SEC / HZ) - 1) / (MSEC_PER_SEC / HZ); -#elif HZ > MSEC_PER_SEC && !(HZ % MSEC_PER_SEC) - return m * (HZ / MSEC_PER_SEC); -#else - return (m * HZ + MSEC_PER_SEC - 1) / MSEC_PER_SEC; -#endif -} - -static inline unsigned long usecs_to_jiffies(const unsigned int u) -{ - if (u > jiffies_to_usecs(MAX_JIFFY_OFFSET)) - return MAX_JIFFY_OFFSET; -#if HZ <= USEC_PER_SEC && !(USEC_PER_SEC % HZ) - return (u + (USEC_PER_SEC / HZ) - 1) / (USEC_PER_SEC / HZ); -#elif HZ > USEC_PER_SEC && !(HZ % USEC_PER_SEC) - return u * (HZ / USEC_PER_SEC); -#else - return (u * HZ + USEC_PER_SEC - 1) / USEC_PER_SEC; -#endif -} - -/* - * The TICK_NSEC - 1 rounds up the value to the next resolution. Note - * that a remainder subtract here would not do the right thing as the - * resolution values don't fall on second boundries. I.e. the line: - * nsec -= nsec % TICK_NSEC; is NOT a correct resolution rounding. - * - * Rather, we just shift the bits off the right. - * - * The >> (NSEC_JIFFIE_SC - SEC_JIFFIE_SC) converts the scaled nsec - * value to a scaled second value. - */ -static __inline__ unsigned long -timespec_to_jiffies(const struct timespec *value) -{ - unsigned long sec = value->tv_sec; - long nsec = value->tv_nsec + TICK_NSEC - 1; - - if (sec >= MAX_SEC_IN_JIFFIES){ - sec = MAX_SEC_IN_JIFFIES; - nsec = 0; - } - return (((u64)sec * SEC_CONVERSION) + - (((u64)nsec * NSEC_CONVERSION) >> - (NSEC_JIFFIE_SC - SEC_JIFFIE_SC))) >> SEC_JIFFIE_SC; - -} - -static __inline__ void -jiffies_to_timespec(const unsigned long jiffies, struct timespec *value) -{ - /* - * Convert jiffies to nanoseconds and separate with - * one divide. - */ - u64 nsec = (u64)jiffies * TICK_NSEC; - value->tv_sec = div_long_long_rem(nsec, NSEC_PER_SEC, &value->tv_nsec); -} - -/* Same for "timeval" - * - * Well, almost. The problem here is that the real system resolution is - * in nanoseconds and the value being converted is in micro seconds. - * Also for some machines (those that use HZ = 1024, in-particular), - * there is a LARGE error in the tick size in microseconds. - - * The solution we use is to do the rounding AFTER we convert the - * microsecond part. Thus the USEC_ROUND, the bits to be shifted off. - * Instruction wise, this should cost only an additional add with carry - * instruction above the way it was done above. - */ -static __inline__ unsigned long -timeval_to_jiffies(const struct timeval *value) -{ - unsigned long sec = value->tv_sec; - long usec = value->tv_usec; - - if (sec >= MAX_SEC_IN_JIFFIES){ - sec = MAX_SEC_IN_JIFFIES; - usec = 0; - } - return (((u64)sec * SEC_CONVERSION) + - (((u64)usec * USEC_CONVERSION + USEC_ROUND) >> - (USEC_JIFFIE_SC - SEC_JIFFIE_SC))) >> SEC_JIFFIE_SC; -} - -static __inline__ void -jiffies_to_timeval(const unsigned long jiffies, struct timeval *value) -{ - /* - * Convert jiffies to nanoseconds and separate with - * one divide. - */ - u64 nsec = (u64)jiffies * TICK_NSEC; - long tv_usec; - - value->tv_sec = div_long_long_rem(nsec, NSEC_PER_SEC, &tv_usec); - tv_usec /= NSEC_PER_USEC; - value->tv_usec = tv_usec; -} - -/* - * Convert jiffies/jiffies_64 to clock_t and back. + * Convert various time units to each other: */ -static inline clock_t jiffies_to_clock_t(long x) -{ -#if (TICK_NSEC % (NSEC_PER_SEC / USER_HZ)) == 0 - return x / (HZ / USER_HZ); -#else - u64 tmp = (u64)x * TICK_NSEC; - do_div(tmp, (NSEC_PER_SEC / USER_HZ)); - return (long)tmp; -#endif -} - -static inline unsigned long clock_t_to_jiffies(unsigned long x) -{ -#if (HZ % USER_HZ)==0 - if (x >= ~0UL / (HZ / USER_HZ)) - return ~0UL; - return x * (HZ / USER_HZ); -#else - u64 jif; - - /* Don't worry about loss of precision here .. */ - if (x >= ~0UL / HZ * USER_HZ) - return ~0UL; - - /* .. but do try to contain it here */ - jif = x * (u64) HZ; - do_div(jif, USER_HZ); - return jif; -#endif -} - -static inline u64 jiffies_64_to_clock_t(u64 x) -{ -#if (TICK_NSEC % (NSEC_PER_SEC / USER_HZ)) == 0 - do_div(x, HZ / USER_HZ); -#else - /* - * There are better ways that don't overflow early, - * but even this doesn't overflow in hundreds of years - * in 64 bits, so.. - */ - x *= TICK_NSEC; - do_div(x, (NSEC_PER_SEC / USER_HZ)); -#endif - return x; -} - -static inline u64 nsec_to_clock_t(u64 x) -{ -#if (NSEC_PER_SEC % USER_HZ) == 0 - do_div(x, (NSEC_PER_SEC / USER_HZ)); -#elif (USER_HZ % 512) == 0 - x *= USER_HZ/512; - do_div(x, (NSEC_PER_SEC / 512)); -#else - /* - * max relative error 5.7e-8 (1.8s per year) for USER_HZ <= 1024, - * overflow after 64.99 years. - * exact for HZ=60, 72, 90, 120, 144, 180, 300, 600, 900, ... - */ - x *= 9; - do_div(x, (unsigned long)((9ull * NSEC_PER_SEC + (USER_HZ/2)) - / USER_HZ)); -#endif - return x; -} +extern unsigned int jiffies_to_msecs(const unsigned long j); +extern unsigned int jiffies_to_usecs(const unsigned long j); +extern unsigned long msecs_to_jiffies(const unsigned int m); +extern unsigned long usecs_to_jiffies(const unsigned int u); +extern unsigned long timespec_to_jiffies(const struct timespec *value); +extern void jiffies_to_timespec(const unsigned long jiffies, + struct timespec *value); +extern unsigned long timeval_to_jiffies(const struct timeval *value); +extern void jiffies_to_timeval(const unsigned long jiffies, + struct timeval *value); +extern clock_t jiffies_to_clock_t(long x); +extern unsigned long clock_t_to_jiffies(unsigned long x); +extern u64 jiffies_64_to_clock_t(u64 x); +extern u64 nsec_to_clock_t(u64 x); + +#define TIMESTAMP_SIZE 30 #endif diff --git a/include/linux/ktime.h b/include/linux/ktime.h index 7444a63..c68c7ac 100644 --- a/include/linux/ktime.h +++ b/include/linux/ktime.h @@ -261,8 +261,7 @@ static inline s64 ktime_to_ns(const ktime_t kt) * idea of the (in)accuracy of timers. Timer values are rounded up to * this resolution values. */ -#define KTIME_REALTIME_RES (ktime_t){ .tv64 = TICK_NSEC } -#define KTIME_MONOTONIC_RES (ktime_t){ .tv64 = TICK_NSEC } +#define KTIME_LOW_RES (ktime_t){ .tv64 = TICK_NSEC } /* Get the monotonic time in timespec format: */ extern void ktime_get_ts(struct timespec *ts); diff --git a/include/linux/libata.h b/include/linux/libata.h index 596e0c1..b870b20 100644 --- a/include/linux/libata.h +++ b/include/linux/libata.h @@ -172,6 +172,7 @@ enum { ATA_FLAG_DEBUGMSG = (1 << 13), ATA_FLAG_SETXFER_POLLING= (1 << 14), /* use polling for SETXFER */ ATA_FLAG_IGN_SIMPLEX = (1 << 15), /* ignore SIMPLEX */ + ATA_FLAG_NO_IORDY = (1 << 16), /* controller lacks iordy */ /* The following flag belongs to ap->pflags but is kept in * ap->flags because it's referenced in many LLDs and will be diff --git a/include/linux/nfs4.h b/include/linux/nfs4.h index db05182..1be5be8 100644 --- a/include/linux/nfs4.h +++ b/include/linux/nfs4.h @@ -105,12 +105,11 @@ struct nfs4_ace { uint32_t access_mask; int whotype; uid_t who; - struct list_head l_ace; }; struct nfs4_acl { uint32_t naces; - struct list_head ace_head; + struct nfs4_ace aces[0]; }; typedef struct { char data[NFS4_VERIFIER_SIZE]; } nfs4_verifier; diff --git a/include/linux/nfs4_acl.h b/include/linux/nfs4_acl.h index 22aff4d..409b6e0 100644 --- a/include/linux/nfs4_acl.h +++ b/include/linux/nfs4_acl.h @@ -39,9 +39,12 @@ #include <linux/posix_acl.h> -struct nfs4_acl *nfs4_acl_new(void); -void nfs4_acl_free(struct nfs4_acl *); -int nfs4_acl_add_ace(struct nfs4_acl *, u32, u32, u32, int, uid_t); +/* Maximum ACL we'll accept from client; chosen (somewhat arbitrarily) to + * fit in a page: */ +#define NFS4_ACL_MAX 170 + +struct nfs4_acl *nfs4_acl_new(int); +void nfs4_acl_add_ace(struct nfs4_acl *, u32, u32, u32, int, uid_t); int nfs4_acl_get_whotype(char *, u32); int nfs4_acl_write_who(int who, char *p); int nfs4_acl_permission(struct nfs4_acl *acl, uid_t owner, gid_t group, diff --git a/include/linux/tick.h b/include/linux/tick.h new file mode 100644 index 0000000..9a7252e --- /dev/null +++ b/include/linux/tick.h @@ -0,0 +1,109 @@ +/* linux/include/linux/tick.h + * + * This file contains the structure definitions for tick related functions + * + */ +#ifndef _LINUX_TICK_H +#define _LINUX_TICK_H + +#include <linux/clockchips.h> + +#ifdef CONFIG_GENERIC_CLOCKEVENTS + +enum tick_device_mode { + TICKDEV_MODE_PERIODIC, + TICKDEV_MODE_ONESHOT, +}; + +struct tick_device { + struct clock_event_device *evtdev; + enum tick_device_mode mode; +}; + +enum tick_nohz_mode { + NOHZ_MODE_INACTIVE, + NOHZ_MODE_LOWRES, + NOHZ_MODE_HIGHRES, +}; + +/** + * struct tick_sched - sched tick emulation and no idle tick control/stats + * @sched_timer: hrtimer to schedule the periodic tick in high + * resolution mode + * @idle_tick: Store the last idle tick expiry time when the tick + * timer is modified for idle sleeps. This is necessary + * to resume the tick timer operation in the timeline + * when the CPU returns from idle + * @tick_stopped: Indicator that the idle tick has been stopped + * @idle_jiffies: jiffies at the entry to idle for idle time accounting + * @idle_calls: Total number of idle calls + * @idle_sleeps: Number of idle calls, where the sched tick was stopped + * @idle_entrytime: Time when the idle call was entered + * @idle_sleeptime: Sum of the time slept in idle with sched tick stopped + */ +struct tick_sched { + struct hrtimer sched_timer; + unsigned long check_clocks; + enum tick_nohz_mode nohz_mode; + ktime_t idle_tick; + int tick_stopped; + unsigned long idle_jiffies; + unsigned long idle_calls; + unsigned long idle_sleeps; + ktime_t idle_entrytime; + ktime_t idle_sleeptime; + unsigned long last_jiffies; + unsigned long next_jiffies; + ktime_t idle_expires; +}; + +extern void __init tick_init(void); +extern int tick_is_oneshot_available(void); +extern struct tick_device *tick_get_device(int cpu); + +# ifdef CONFIG_HIGH_RES_TIMERS +extern int tick_init_highres(void); +extern int tick_program_event(ktime_t expires, int force); +extern void tick_setup_sched_timer(void); +extern void tick_cancel_sched_timer(int cpu); +# else +static inline void tick_cancel_sched_timer(int cpu) { } +# endif /* HIGHRES */ + +# ifdef CONFIG_GENERIC_CLOCKEVENTS_BROADCAST +extern struct tick_device *tick_get_broadcast_device(void); +extern cpumask_t *tick_get_broadcast_mask(void); + +# ifdef CONFIG_TICK_ONESHOT +extern cpumask_t *tick_get_broadcast_oneshot_mask(void); +# endif + +# endif /* BROADCAST */ + +# ifdef CONFIG_TICK_ONESHOT +extern void tick_clock_notify(void); +extern int tick_check_oneshot_change(int allow_nohz); +extern struct tick_sched *tick_get_tick_sched(int cpu); +# else +static inline void tick_clock_notify(void) { } +static inline int tick_check_oneshot_change(int allow_nohz) { return 0; } +# endif + +#else /* CONFIG_GENERIC_CLOCKEVENTS */ +static inline void tick_init(void) { } +static inline void tick_cancel_sched_timer(int cpu) { } +static inline void tick_clock_notify(void) { } +static inline int tick_check_oneshot_change(int allow_nohz) { return 0; } +#endif /* !CONFIG_GENERIC_CLOCKEVENTS */ + +# ifdef CONFIG_NO_HZ +extern void tick_nohz_stop_sched_tick(void); +extern void tick_nohz_restart_sched_tick(void); +extern void tick_nohz_update_jiffies(void); +# else +static inline void tick_nohz_stop_sched_tick(void) { } +static inline void tick_nohz_restart_sched_tick(void) { } +static inline void tick_nohz_update_jiffies(void) { } +# endif /* !NO_HZ */ + +#endif diff --git a/include/linux/time.h b/include/linux/time.h index eceb1a5..8ea8dea 100644 --- a/include/linux/time.h +++ b/include/linux/time.h @@ -92,6 +92,7 @@ extern struct timespec xtime; extern struct timespec wall_to_monotonic; extern seqlock_t xtime_lock __attribute__((weak)); +extern unsigned long read_persistent_clock(void); void timekeeping_init(void); static inline unsigned long get_seconds(void) diff --git a/include/linux/timer.h b/include/linux/timer.h index fb5edaa..719113b 100644 --- a/include/linux/timer.h +++ b/include/linux/timer.h @@ -2,6 +2,7 @@ #define _LINUX_TIMER_H #include <linux/list.h> +#include <linux/ktime.h> #include <linux/spinlock.h> #include <linux/stddef.h> @@ -15,6 +16,11 @@ struct timer_list { unsigned long data; struct tvec_t_base_s *base; +#ifdef CONFIG_TIMER_STATS + void *start_site; + char start_comm[16]; + int start_pid; +#endif }; extern struct tvec_t_base_s boot_tvec_bases; @@ -61,7 +67,65 @@ extern int del_timer(struct timer_list * timer); extern int __mod_timer(struct timer_list *timer, unsigned long expires); extern int mod_timer(struct timer_list *timer, unsigned long expires); +/* + * Return when the next timer-wheel timeout occurs (in absolute jiffies), + * locks the timer base: + */ extern unsigned long next_timer_interrupt(void); +/* + * Return when the next timer-wheel timeout occurs (in absolute jiffies), + * locks the timer base and does the comparison against the given + * jiffie. + */ +extern unsigned long get_next_timer_interrupt(unsigned long now); + +/* + * Timer-statistics info: + */ +#ifdef CONFIG_TIMER_STATS + +extern void init_timer_stats(void); + +extern void timer_stats_update_stats(void *timer, pid_t pid, void *startf, + void *timerf, char * comm); + +static inline void timer_stats_account_timer(struct timer_list *timer) +{ + timer_stats_update_stats(timer, timer->start_pid, timer->start_site, + timer->function, timer->start_comm); +} + +extern void __timer_stats_timer_set_start_info(struct timer_list *timer, + void *addr); + +static inline void timer_stats_timer_set_start_info(struct timer_list *timer) +{ + __timer_stats_timer_set_start_info(timer, __builtin_return_address(0)); +} + +static inline void timer_stats_timer_clear_start_info(struct timer_list *timer) +{ + timer->start_site = NULL; +} +#else +static inline void init_timer_stats(void) +{ +} + +static inline void timer_stats_account_timer(struct timer_list *timer) +{ +} + +static inline void timer_stats_timer_set_start_info(struct timer_list *timer) +{ +} + +static inline void timer_stats_timer_clear_start_info(struct timer_list *timer) +{ +} +#endif + +extern void delayed_work_timer_fn(unsigned long __data); /** * add_timer - start a timer @@ -96,7 +160,7 @@ static inline void add_timer(struct timer_list *timer) extern void init_timers(void); extern void run_local_timers(void); struct hrtimer; -extern int it_real_fn(struct hrtimer *); +extern enum hrtimer_restart it_real_fn(struct hrtimer *); unsigned long __round_jiffies(unsigned long j, int cpu); unsigned long __round_jiffies_relative(unsigned long j, int cpu); diff --git a/include/linux/timex.h b/include/linux/timex.h index 9a24e50..da929db 100644 --- a/include/linux/timex.h +++ b/include/linux/timex.h @@ -286,6 +286,13 @@ static inline void time_interpolator_update(long delta_nsec) #define TICK_LENGTH_SHIFT 32 +#ifdef CONFIG_NO_HZ +#define NTP_INTERVAL_FREQ (2) +#else +#define NTP_INTERVAL_FREQ (HZ) +#endif +#define NTP_INTERVAL_LENGTH (NSEC_PER_SEC/NTP_INTERVAL_FREQ) + /* Returns how long ticks are at present, in ns / 2^(SHIFT_SCALE-10). */ extern u64 current_tick_length(void); |