diff options
Diffstat (limited to 'arch')
28 files changed, 204 insertions, 127 deletions
diff --git a/arch/alpha/kernel/machvec_impl.h b/arch/alpha/kernel/machvec_impl.h index 4959b7a3e1e..11f996f24fd 100644 --- a/arch/alpha/kernel/machvec_impl.h +++ b/arch/alpha/kernel/machvec_impl.h @@ -41,7 +41,7 @@ #define CAT1(x,y) x##y #define CAT(x,y) CAT1(x,y) -#define DO_DEFAULT_RTC rtc_port: 0x70 +#define DO_DEFAULT_RTC .rtc_port = 0x70 #define DO_EV4_MMU \ .max_asn = EV4_MAX_ASN, \ diff --git a/arch/arm/kernel/calls.S b/arch/arm/kernel/calls.S index 2ad4aa2a153..55076a75e5b 100644 --- a/arch/arm/kernel/calls.S +++ b/arch/arm/kernel/calls.S @@ -131,7 +131,7 @@ __syscall_start: .long sys_wait4 /* 115 */ .long sys_swapoff .long sys_sysinfo - .long sys_ipc_wrapper + .long sys_ipc .long sys_fsync .long sys_sigreturn_wrapper /* 120 */ .long sys_clone_wrapper @@ -254,7 +254,7 @@ __syscall_start: .long sys_fremovexattr .long sys_tkill .long sys_sendfile64 -/* 240 */ .long sys_futex_wrapper +/* 240 */ .long sys_futex .long sys_sched_setaffinity .long sys_sched_getaffinity .long sys_io_setup @@ -284,7 +284,7 @@ __syscall_start: .long sys_fstatfs64 .long sys_tgkill .long sys_utimes -/* 270 */ .long sys_arm_fadvise64_64_wrapper +/* 270 */ .long sys_arm_fadvise64_64 .long sys_pciconfig_iobase .long sys_pciconfig_read .long sys_pciconfig_write @@ -333,7 +333,7 @@ __syscall_start: .long sys_inotify_init .long sys_inotify_add_watch .long sys_inotify_rm_watch - .long sys_mbind_wrapper + .long sys_mbind /* 320 */ .long sys_get_mempolicy .long sys_set_mempolicy __syscall_end: diff --git a/arch/arm/kernel/entry-armv.S b/arch/arm/kernel/entry-armv.S index d9fb819bf7c..2a8d27e18fa 100644 --- a/arch/arm/kernel/entry-armv.S +++ b/arch/arm/kernel/entry-armv.S @@ -614,6 +614,47 @@ __kuser_helper_start: /* * Reference prototype: * + * void __kernel_memory_barrier(void) + * + * Input: + * + * lr = return address + * + * Output: + * + * none + * + * Clobbered: + * + * the Z flag might be lost + * + * Definition and user space usage example: + * + * typedef void (__kernel_dmb_t)(void); + * #define __kernel_dmb (*(__kernel_dmb_t *)0xffff0fa0) + * + * Apply any needed memory barrier to preserve consistency with data modified + * manually and __kuser_cmpxchg usage. + * + * This could be used as follows: + * + * #define __kernel_dmb() \ + * asm volatile ( "mov r0, #0xffff0fff; mov lr, pc; sub pc, r0, #95" \ + * : : : "lr","cc" ) + */ + +__kuser_memory_barrier: @ 0xffff0fa0 + +#if __LINUX_ARM_ARCH__ >= 6 && defined(CONFIG_SMP) + mcr p15, 0, r0, c7, c10, 5 @ dmb +#endif + mov pc, lr + + .align 5 + +/* + * Reference prototype: + * * int __kernel_cmpxchg(int oldval, int newval, int *ptr) * * Input: @@ -642,6 +683,8 @@ __kuser_helper_start: * The C flag is also set if *ptr was changed to allow for assembly * optimization in the calling code. * + * Note: this routine already includes memory barriers as needed. + * * For example, a user space atomic_add implementation could look like this: * * #define atomic_add(ptr, val) \ @@ -698,10 +741,16 @@ __kuser_cmpxchg: @ 0xffff0fc0 #else +#ifdef CONFIG_SMP + mcr p15, 0, r0, c7, c10, 5 @ dmb +#endif ldrex r3, [r2] subs r3, r3, r0 strexeq r3, r1, [r2] rsbs r0, r3, #0 +#ifdef CONFIG_SMP + mcr p15, 0, r0, c7, c10, 5 @ dmb +#endif mov pc, lr #endif diff --git a/arch/arm/kernel/entry-common.S b/arch/arm/kernel/entry-common.S index f7f18307523..e2b42997ad3 100644 --- a/arch/arm/kernel/entry-common.S +++ b/arch/arm/kernel/entry-common.S @@ -145,7 +145,7 @@ ENTRY(vector_swi) #endif enable_irq - str r4, [sp, #-S_OFF]! @ push fifth arg + stmdb sp!, {r4, r5} @ push fifth and sixth args get_thread_info tsk ldr ip, [tsk, #TI_FLAGS] @ check for syscall tracing @@ -204,7 +204,7 @@ ENTRY(sys_call_table) * Special system call wrappers */ @ r0 = syscall number -@ r5 = syscall table +@ r8 = syscall table .type sys_syscall, #function sys_syscall: eor scno, r0, #__NR_SYSCALL_BASE @@ -255,22 +255,6 @@ sys_sigaltstack_wrapper: ldr r2, [sp, #S_OFF + S_SP] b do_sigaltstack -sys_futex_wrapper: - str r5, [sp, #4] @ push sixth arg - b sys_futex - -sys_arm_fadvise64_64_wrapper: - str r5, [sp, #4] @ push r5 to stack - b sys_arm_fadvise64_64 - -sys_mbind_wrapper: - str r5, [sp, #4] - b sys_mbind - -sys_ipc_wrapper: - str r5, [sp, #4] @ push sixth arg - b sys_ipc - /* * Note: off_4k (r5) is always units of 4K. If we can't do the requested * offset, we return EINVAL. diff --git a/arch/i386/mm/ioremap.c b/arch/i386/mm/ioremap.c index 8498b5ac395..247fde76aae 100644 --- a/arch/i386/mm/ioremap.c +++ b/arch/i386/mm/ioremap.c @@ -245,7 +245,7 @@ void iounmap(volatile void __iomem *addr) addr < phys_to_virt(ISA_END_ADDRESS)) return; - addr = (volatile void *)(PAGE_MASK & (unsigned long __force)addr); + addr = (volatile void __iomem *)(PAGE_MASK & (unsigned long __force)addr); /* Use the vm area unlocked, assuming the caller ensures there isn't another iounmap for the same address diff --git a/arch/i386/pci/mmconfig.c b/arch/i386/pci/mmconfig.c index 08a08490121..4bb4d4b0f73 100644 --- a/arch/i386/pci/mmconfig.c +++ b/arch/i386/pci/mmconfig.c @@ -155,7 +155,7 @@ static __init void unreachable_devices(void) addr = get_base_addr(0, 0, PCI_DEVFN(i, 0)); if (addr != 0) pci_exp_set_dev_base(addr, 0, PCI_DEVFN(i, 0)); - if (addr == 0 || readl((u32 *)addr) != val1) + if (addr == 0 || readl((u32 __iomem *)mmcfg_virt_addr) != val1) set_bit(i, fallback_slots); spin_unlock_irqrestore(&pci_config_lock, flags); } diff --git a/arch/ia64/configs/sn2_defconfig b/arch/ia64/configs/sn2_defconfig index e1924cc9687..ff8bb3770c9 100644 --- a/arch/ia64/configs/sn2_defconfig +++ b/arch/ia64/configs/sn2_defconfig @@ -113,7 +113,7 @@ CONFIG_IOSAPIC=y CONFIG_IA64_SGI_SN_XP=m CONFIG_FORCE_MAX_ZONEORDER=17 CONFIG_SMP=y -CONFIG_NR_CPUS=512 +CONFIG_NR_CPUS=1024 # CONFIG_HOTPLUG_CPU is not set CONFIG_SCHED_SMT=y CONFIG_PREEMPT=y diff --git a/arch/ia64/kernel/time.c b/arch/ia64/kernel/time.c index 5b7e736f3b4..028a2b95936 100644 --- a/arch/ia64/kernel/time.c +++ b/arch/ia64/kernel/time.c @@ -249,3 +249,32 @@ time_init (void) */ set_normalized_timespec(&wall_to_monotonic, -xtime.tv_sec, -xtime.tv_nsec); } + +#define SMALLUSECS 100 + +void +udelay (unsigned long usecs) +{ + unsigned long start; + unsigned long cycles; + unsigned long smallusecs; + + /* + * Execute the non-preemptible delay loop (because the ITC might + * not be synchronized between CPUS) in relatively short time + * chunks, allowing preemption between the chunks. + */ + while (usecs > 0) { + smallusecs = (usecs > SMALLUSECS) ? SMALLUSECS : usecs; + preempt_disable(); + cycles = smallusecs*local_cpu_data->cyc_per_usec; + start = ia64_get_itc(); + + while (ia64_get_itc() - start < cycles) + cpu_relax(); + + preempt_enable(); + usecs -= smallusecs; + } +} +EXPORT_SYMBOL(udelay); diff --git a/arch/ia64/kernel/uncached.c b/arch/ia64/kernel/uncached.c index c6d40446c2c..b631cf86ed4 100644 --- a/arch/ia64/kernel/uncached.c +++ b/arch/ia64/kernel/uncached.c @@ -53,7 +53,7 @@ static void uncached_ipi_visibility(void *data) if ((status != PAL_VISIBILITY_OK) && (status != PAL_VISIBILITY_OK_REMOTE_NEEDED)) printk(KERN_DEBUG "pal_prefetch_visibility() returns %i on " - "CPU %i\n", status, get_cpu()); + "CPU %i\n", status, raw_smp_processor_id()); } @@ -63,7 +63,7 @@ static void uncached_ipi_mc_drain(void *data) status = ia64_pal_mc_drain(); if (status) printk(KERN_WARNING "ia64_pal_mc_drain() failed with %i on " - "CPU %i\n", status, get_cpu()); + "CPU %i\n", status, raw_smp_processor_id()); } @@ -105,7 +105,7 @@ uncached_get_new_chunk(struct gen_pool *poolp) status = ia64_pal_prefetch_visibility(PAL_VISIBILITY_PHYSICAL); dprintk(KERN_INFO "pal_prefetch_visibility() returns %i on cpu %i\n", - status, get_cpu()); + status, raw_smp_processor_id()); if (!status) { status = smp_call_function(uncached_ipi_visibility, NULL, 0, 1); diff --git a/arch/ia64/kernel/vmlinux.lds.S b/arch/ia64/kernel/vmlinux.lds.S index 30d8564e960..73af6267d2e 100644 --- a/arch/ia64/kernel/vmlinux.lds.S +++ b/arch/ia64/kernel/vmlinux.lds.S @@ -177,6 +177,9 @@ SECTIONS } . = ALIGN(PAGE_SIZE); /* make sure the gate page doesn't expose kernel data */ + .data.read_mostly : AT(ADDR(.data.read_mostly) - LOAD_OFFSET) + { *(.data.read_mostly) } + .data.cacheline_aligned : AT(ADDR(.data.cacheline_aligned) - LOAD_OFFSET) { *(.data.cacheline_aligned) } diff --git a/arch/ia64/sn/kernel/sn2/sn2_smp.c b/arch/ia64/sn/kernel/sn2/sn2_smp.c index 5d54f5f4e92..471bbaa65d1 100644 --- a/arch/ia64/sn/kernel/sn2/sn2_smp.c +++ b/arch/ia64/sn/kernel/sn2/sn2_smp.c @@ -202,7 +202,7 @@ sn2_global_tlb_purge(struct mm_struct *mm, unsigned long start, unsigned long end, unsigned long nbits) { int i, opt, shub1, cnode, mynasid, cpu, lcpu = 0, nasid, flushed = 0; - int mymm = (mm == current->active_mm); + int mymm = (mm == current->active_mm && current->mm); volatile unsigned long *ptc0, *ptc1; unsigned long itc, itc2, flags, data0 = 0, data1 = 0, rr_value; short nasids[MAX_NUMNODES], nix; diff --git a/arch/ia64/sn/pci/pcibr/pcibr_reg.c b/arch/ia64/sn/pci/pcibr/pcibr_reg.c index 5d534091262..79fdb91d725 100644 --- a/arch/ia64/sn/pci/pcibr/pcibr_reg.c +++ b/arch/ia64/sn/pci/pcibr/pcibr_reg.c @@ -25,7 +25,7 @@ union br_ptr { */ void pcireg_control_bit_clr(struct pcibus_info *pcibus_info, uint64_t bits) { - union br_ptr *ptr = (union br_ptr *)pcibus_info->pbi_buscommon.bs_base; + union br_ptr __iomem *ptr = (union br_ptr __iomem *)pcibus_info->pbi_buscommon.bs_base; if (pcibus_info) { switch (pcibus_info->pbi_bridge_type) { @@ -38,14 +38,14 @@ void pcireg_control_bit_clr(struct pcibus_info *pcibus_info, uint64_t bits) default: panic ("pcireg_control_bit_clr: unknown bridgetype bridge 0x%p", - (void *)ptr); + ptr); } } } void pcireg_control_bit_set(struct pcibus_info *pcibus_info, uint64_t bits) { - union br_ptr *ptr = (union br_ptr *)pcibus_info->pbi_buscommon.bs_base; + union br_ptr __iomem *ptr = (union br_ptr __iomem *)pcibus_info->pbi_buscommon.bs_base; if (pcibus_info) { switch (pcibus_info->pbi_bridge_type) { @@ -58,7 +58,7 @@ void pcireg_control_bit_set(struct pcibus_info *pcibus_info, uint64_t bits) default: panic ("pcireg_control_bit_set: unknown bridgetype bridge 0x%p", - (void *)ptr); + ptr); } } } @@ -68,7 +68,7 @@ void pcireg_control_bit_set(struct pcibus_info *pcibus_info, uint64_t bits) */ uint64_t pcireg_tflush_get(struct pcibus_info *pcibus_info) { - union br_ptr *ptr = (union br_ptr *)pcibus_info->pbi_buscommon.bs_base; + union br_ptr __iomem *ptr = (union br_ptr __iomem *)pcibus_info->pbi_buscommon.bs_base; uint64_t ret = 0; if (pcibus_info) { @@ -82,7 +82,7 @@ uint64_t pcireg_tflush_get(struct pcibus_info *pcibus_info) default: panic ("pcireg_tflush_get: unknown bridgetype bridge 0x%p", - (void *)ptr); + ptr); } } @@ -98,7 +98,7 @@ uint64_t pcireg_tflush_get(struct pcibus_info *pcibus_info) */ uint64_t pcireg_intr_status_get(struct pcibus_info * pcibus_info) { - union br_ptr *ptr = (union br_ptr *)pcibus_info->pbi_buscommon.bs_base; + union br_ptr __iomem *ptr = (union br_ptr __iomem *)pcibus_info->pbi_buscommon.bs_base; uint64_t ret = 0; if (pcibus_info) { @@ -112,7 +112,7 @@ uint64_t pcireg_intr_status_get(struct pcibus_info * pcibus_info) default: panic ("pcireg_intr_status_get: unknown bridgetype bridge 0x%p", - (void *)ptr); + ptr); } } return ret; @@ -123,7 +123,7 @@ uint64_t pcireg_intr_status_get(struct pcibus_info * pcibus_info) */ void pcireg_intr_enable_bit_clr(struct pcibus_info *pcibus_info, uint64_t bits) { - union br_ptr *ptr = (union br_ptr *)pcibus_info->pbi_buscommon.bs_base; + union br_ptr __iomem *ptr = (union br_ptr __iomem *)pcibus_info->pbi_buscommon.bs_base; if (pcibus_info) { switch (pcibus_info->pbi_bridge_type) { @@ -136,14 +136,14 @@ void pcireg_intr_enable_bit_clr(struct pcibus_info *pcibus_info, uint64_t bits) default: panic ("pcireg_intr_enable_bit_clr: unknown bridgetype bridge 0x%p", - (void *)ptr); + ptr); } } } void pcireg_intr_enable_bit_set(struct pcibus_info *pcibus_info, uint64_t bits) { - union br_ptr *ptr = (union br_ptr *)pcibus_info->pbi_buscommon.bs_base; + union br_ptr __iomem *ptr = (union br_ptr __iomem *)pcibus_info->pbi_buscommon.bs_base; if (pcibus_info) { switch (pcibus_info->pbi_bridge_type) { @@ -156,7 +156,7 @@ void pcireg_intr_enable_bit_set(struct pcibus_info *pcibus_info, uint64_t bits) default: panic ("pcireg_intr_enable_bit_set: unknown bridgetype bridge 0x%p", - (void *)ptr); + ptr); } } } @@ -167,7 +167,7 @@ void pcireg_intr_enable_bit_set(struct pcibus_info *pcibus_info, uint64_t bits) void pcireg_intr_addr_addr_set(struct pcibus_info *pcibus_info, int int_n, uint64_t addr) { - union br_ptr *ptr = (union br_ptr *)pcibus_info->pbi_buscommon.bs_base; + union br_ptr __iomem *ptr = (union br_ptr __iomem *)pcibus_info->pbi_buscommon.bs_base; if (pcibus_info) { switch (pcibus_info->pbi_bridge_type) { @@ -186,7 +186,7 @@ void pcireg_intr_addr_addr_set(struct pcibus_info *pcibus_info, int int_n, default: panic ("pcireg_intr_addr_addr_get: unknown bridgetype bridge 0x%p", - (void *)ptr); + ptr); } } } @@ -196,7 +196,7 @@ void pcireg_intr_addr_addr_set(struct pcibus_info *pcibus_info, int int_n, */ void pcireg_force_intr_set(struct pcibus_info *pcibus_info, int int_n) { - union br_ptr *ptr = (union br_ptr *)pcibus_info->pbi_buscommon.bs_base; + union br_ptr __iomem *ptr = (union br_ptr __iomem *)pcibus_info->pbi_buscommon.bs_base; if (pcibus_info) { switch (pcibus_info->pbi_bridge_type) { @@ -209,7 +209,7 @@ void pcireg_force_intr_set(struct pcibus_info *pcibus_info, int int_n) default: panic ("pcireg_force_intr_set: unknown bridgetype bridge 0x%p", - (void *)ptr); + ptr); } } } @@ -219,7 +219,7 @@ void pcireg_force_intr_set(struct pcibus_info *pcibus_info, int int_n) */ uint64_t pcireg_wrb_flush_get(struct pcibus_info *pcibus_info, int device) { - union br_ptr *ptr = (union br_ptr *)pcibus_info->pbi_buscommon.bs_base; + union br_ptr __iomem *ptr = (union br_ptr __iomem *)pcibus_info->pbi_buscommon.bs_base; uint64_t ret = 0; if (pcibus_info) { @@ -233,7 +233,7 @@ uint64_t pcireg_wrb_flush_get(struct pcibus_info *pcibus_info, int device) __sn_readq_relaxed(&ptr->pic.p_wr_req_buf[device]); break; default: - panic("pcireg_wrb_flush_get: unknown bridgetype bridge 0x%p", (void *)ptr); + panic("pcireg_wrb_flush_get: unknown bridgetype bridge 0x%p", ptr); } } @@ -244,7 +244,7 @@ uint64_t pcireg_wrb_flush_get(struct pcibus_info *pcibus_info, int device) void pcireg_int_ate_set(struct pcibus_info *pcibus_info, int ate_index, uint64_t val) { - union br_ptr *ptr = (union br_ptr *)pcibus_info->pbi_buscommon.bs_base; + union br_ptr __iomem *ptr = (union br_ptr __iomem *)pcibus_info->pbi_buscommon.bs_base; if (pcibus_info) { switch (pcibus_info->pbi_bridge_type) { @@ -257,15 +257,15 @@ void pcireg_int_ate_set(struct pcibus_info *pcibus_info, int ate_index, default: panic ("pcireg_int_ate_set: unknown bridgetype bridge 0x%p", - (void *)ptr); + ptr); } } } -uint64_t *pcireg_int_ate_addr(struct pcibus_info *pcibus_info, int ate_index) +uint64_t __iomem *pcireg_int_ate_addr(struct pcibus_info *pcibus_info, int ate_index) { - union br_ptr *ptr = (union br_ptr *)pcibus_info->pbi_buscommon.bs_base; - uint64_t *ret = (uint64_t *) 0; + union br_ptr __iomem *ptr = (union br_ptr __iomem *)pcibus_info->pbi_buscommon.bs_base; + uint64_t __iomem *ret = NULL; if (pcibus_info) { switch (pcibus_info->pbi_bridge_type) { @@ -278,7 +278,7 @@ uint64_t *pcireg_int_ate_addr(struct pcibus_info *pcibus_info, int ate_index) default: panic ("pcireg_int_ate_addr: unknown bridgetype bridge 0x%p", - (void *)ptr); + ptr); } } return ret; diff --git a/arch/ia64/sn/pci/tioca_provider.c b/arch/ia64/sn/pci/tioca_provider.c index 46b646a6d34..27aa1842dac 100644 --- a/arch/ia64/sn/pci/tioca_provider.c +++ b/arch/ia64/sn/pci/tioca_provider.c @@ -38,10 +38,10 @@ tioca_gart_init(struct tioca_kernel *tioca_kern) uint64_t offset; struct page *tmp; struct tioca_common *tioca_common; - struct tioca *ca_base; + struct tioca __iomem *ca_base; tioca_common = tioca_kern->ca_common; - ca_base = (struct tioca *)tioca_common->ca_common.bs_base; + ca_base = (struct tioca __iomem *)tioca_common->ca_common.bs_base; if (list_empty(tioca_kern->ca_devices)) return 0; @@ -215,7 +215,7 @@ tioca_fastwrite_enable(struct tioca_kernel *tioca_kern) { int cap_ptr; uint32_t reg; - struct tioca *tioca_base; + struct tioca __iomem *tioca_base; struct pci_dev *pdev; struct tioca_common *common; @@ -257,7 +257,7 @@ tioca_fastwrite_enable(struct tioca_kernel *tioca_kern) * Set ca's fw to match */ - tioca_base = (struct tioca *)common->ca_common.bs_base; + tioca_base = (struct tioca __iomem*)common->ca_common.bs_base; __sn_setq_relaxed(&tioca_base->ca_control1, CA_AGP_FW_ENABLE); } @@ -322,7 +322,7 @@ static uint64_t tioca_dma_d48(struct pci_dev *pdev, uint64_t paddr) { struct tioca_common *tioca_common; - struct tioca *ca_base; + struct tioca __iomem *ca_base; uint64_t ct_addr; dma_addr_t bus_addr; uint32_t node_upper; @@ -330,7 +330,7 @@ tioca_dma_d48(struct pci_dev *pdev, uint64_t paddr) struct pcidev_info *pcidev_info = SN_PCIDEV_INFO(pdev); tioca_common = (struct tioca_common *)pcidev_info->pdi_pcibus_info; - ca_base = (struct tioca *)tioca_common->ca_common.bs_base; + ca_base = (struct tioca __iomem *)tioca_common->ca_common.bs_base; ct_addr = PHYS_TO_TIODMA(paddr); if (!ct_addr) diff --git a/arch/powerpc/kernel/syscalls.c b/arch/powerpc/kernel/syscalls.c index f72ced11212..91b93d917b6 100644 --- a/arch/powerpc/kernel/syscalls.c +++ b/arch/powerpc/kernel/syscalls.c @@ -247,7 +247,7 @@ long ppc64_personality(unsigned long personality) #define OVERRIDE_MACHINE 0 #endif -static inline int override_machine(char *mach) +static inline int override_machine(char __user *mach) { if (OVERRIDE_MACHINE) { /* change ppc64 to ppc */ diff --git a/arch/ppc/syslib/ppc4xx_dma.c b/arch/ppc/syslib/ppc4xx_dma.c index f15e64285f9..05ccd598dd4 100644 --- a/arch/ppc/syslib/ppc4xx_dma.c +++ b/arch/ppc/syslib/ppc4xx_dma.c @@ -30,6 +30,7 @@ #include <asm/system.h> #include <asm/io.h> +#include <asm/dma.h> #include <asm/ppc4xx_dma.h> ppc_dma_ch_t dma_channels[MAX_PPC4xx_DMA_CHANNELS]; diff --git a/arch/sparc/kernel/ebus.c b/arch/sparc/kernel/ebus.c index 1754192c69d..5c3529ceb5d 100644 --- a/arch/sparc/kernel/ebus.c +++ b/arch/sparc/kernel/ebus.c @@ -22,7 +22,7 @@ #include <asm/oplib.h> #include <asm/bpp.h> -struct linux_ebus *ebus_chain = 0; +struct linux_ebus *ebus_chain = NULL; /* We are together with pcic.c under CONFIG_PCI. */ extern unsigned int pcic_pin_to_irq(unsigned int, char *name); @@ -46,7 +46,7 @@ static struct ebus_device_irq je1_1[] = { { "SUNW,CS4231", 0 }, { "parallel", 0 }, { "se", 2 }, - { 0, 0 } + { NULL, 0 } }; /* @@ -55,7 +55,7 @@ static struct ebus_device_irq je1_1[] = { */ static struct ebus_system_entry ebus_blacklist[] = { { "SUNW,JavaEngine1", je1_1 }, - { 0, 0 } + { NULL, NULL } }; static struct ebus_device_irq *ebus_blackp = NULL; @@ -233,7 +233,7 @@ void __init fill_ebus_device(int node, struct linux_ebus_device *dev) ebus_alloc(sizeof(struct linux_ebus_child)); child = dev->children; - child->next = 0; + child->next = NULL; child->parent = dev; child->bus = dev->bus; fill_ebus_child(node, ®s[0], child); @@ -243,7 +243,7 @@ void __init fill_ebus_device(int node, struct linux_ebus_device *dev) ebus_alloc(sizeof(struct linux_ebus_child)); child = child->next; - child->next = 0; + child->next = NULL; child->parent = dev; child->bus = dev->bus; fill_ebus_child(node, ®s[0], child); @@ -275,7 +275,7 @@ void __init ebus_init(void) } } - pdev = pci_get_device(PCI_VENDOR_ID_SUN, PCI_DEVICE_ID_SUN_EBUS, 0); + pdev = pci_get_device(PCI_VENDOR_ID_SUN, PCI_DEVICE_ID_SUN_EBUS, NULL); if (!pdev) { return; } @@ -284,7 +284,7 @@ void __init ebus_init(void) ebus_chain = ebus = (struct linux_ebus *) ebus_alloc(sizeof(struct linux_ebus)); - ebus->next = 0; + ebus->next = NULL; while (ebusnd) { @@ -325,8 +325,8 @@ void __init ebus_init(void) ebus_alloc(sizeof(struct linux_ebus_device)); dev = ebus->devices; - dev->next = 0; - dev->children = 0; + dev->next = NULL; + dev->children = NULL; dev->bus = ebus; fill_ebus_device(nd, dev); @@ -335,8 +335,8 @@ void __init ebus_init(void) ebus_alloc(sizeof(struct linux_ebus_device)); dev = dev->next; - dev->next = 0; - dev->children = 0; + dev->next = NULL; + dev->children = NULL; dev->bus = ebus; fill_ebus_device(nd, dev); } @@ -353,7 +353,7 @@ void __init ebus_init(void) ebus->next = (struct linux_ebus *) ebus_alloc(sizeof(struct linux_ebus)); ebus = ebus->next; - ebus->next = 0; + ebus->next = NULL; ++num_ebus; } if (pdev) diff --git a/arch/sparc/kernel/led.c b/arch/sparc/kernel/led.c index 2a3afca453c..313d1620ae8 100644 --- a/arch/sparc/kernel/led.c +++ b/arch/sparc/kernel/led.c @@ -55,7 +55,7 @@ static int led_read_proc(char *buf, char **start, off_t offset, int count, return len; } -static int led_write_proc(struct file *file, const char *buffer, +static int led_write_proc(struct file *file, const char __user *buffer, unsigned long count, void *data) { char *buf = NULL; diff --git a/arch/sparc/kernel/pcic.c b/arch/sparc/kernel/pcic.c index cccfc12802e..42002b742de 100644 --- a/arch/sparc/kernel/pcic.c +++ b/arch/sparc/kernel/pcic.c @@ -161,7 +161,7 @@ static struct pcic_sn2list pcic_known_sysnames[] = { static int pcic0_up; static struct linux_pcic pcic0; -void * __iomem pcic_regs; +void __iomem *pcic_regs; volatile int pcic_speculative; volatile int pcic_trapped; diff --git a/arch/sparc/kernel/time.c b/arch/sparc/kernel/time.c index 24814d58f9e..7dadcdb4ca4 100644 --- a/arch/sparc/kernel/time.c +++ b/arch/sparc/kernel/time.c @@ -49,7 +49,7 @@ DEFINE_SPINLOCK(rtc_lock); enum sparc_clock_type sp_clock_typ; DEFINE_SPINLOCK(mostek_lock); void __iomem *mstk48t02_regs = NULL; -static struct mostek48t08 *mstk48t08_regs = NULL; +static struct mostek48t08 __iomem *mstk48t08_regs = NULL; static int set_rtc_mmss(unsigned long); static int sbus_do_settimeofday(struct timespec *tv); @@ -342,7 +342,7 @@ static __inline__ void clock_probe(void) /* XXX r/o attribute is somewhere in r.flags */ r.flags = clk_reg[0].which_io; r.start = clk_reg[0].phys_addr; - mstk48t08_regs = (struct mostek48t08 *) sbus_ioremap(&r, 0, + mstk48t08_regs = sbus_ioremap(&r, 0, sizeof(struct mostek48t08), "mk48t08"); mstk48t02_regs = &mstk48t08_regs->regs; diff --git a/arch/sparc/mm/sun4c.c b/arch/sparc/mm/sun4c.c index 1d560390e28..731f19603ca 100644 --- a/arch/sparc/mm/sun4c.c +++ b/arch/sparc/mm/sun4c.c @@ -497,7 +497,7 @@ static void __init sun4c_probe_mmu(void) patch_kernel_fault_handler(); } -volatile unsigned long *sun4c_memerr_reg = NULL; +volatile unsigned long __iomem *sun4c_memerr_reg = NULL; void __init sun4c_probe_memerr_reg(void) { diff --git a/arch/um/Kconfig b/arch/um/Kconfig index 563301fe5df..1eb21de9d1b 100644 --- a/arch/um/Kconfig +++ b/arch/um/Kconfig @@ -289,6 +289,8 @@ source "arch/um/Kconfig.net" source "drivers/net/Kconfig" +source "drivers/connector/Kconfig" + source "fs/Kconfig" source "security/Kconfig" diff --git a/arch/um/Makefile-x86_64 b/arch/um/Makefile-x86_64 index 4f118d5cc2e..38df311e75d 100644 --- a/arch/um/Makefile-x86_64 +++ b/arch/um/Makefile-x86_64 @@ -12,3 +12,7 @@ CHECKFLAGS += -m64 ELF_ARCH := i386:x86-64 ELF_FORMAT := elf64-x86-64 + +# Not on all 64-bit distros /lib is a symlink to /lib64. PLD is an example. + +LINK-$(CONFIG_LD_SCRIPT_DYN) += -Wl,-rpath,/lib64 diff --git a/arch/um/include/sysdep-i386/stub.h b/arch/um/include/sysdep-i386/stub.h index 6ba8cbbe0d3..b492b12b4a1 100644 --- a/arch/um/include/sysdep-i386/stub.h +++ b/arch/um/include/sysdep-i386/stub.h @@ -6,8 +6,12 @@ #ifndef __SYSDEP_STUB_H #define __SYSDEP_STUB_H +#include <sys/mman.h> #include <asm/ptrace.h> #include <asm/unistd.h> +#include "stub-data.h" +#include "kern_constants.h" +#include "uml-config.h" extern void stub_segv_handler(int sig); extern void stub_clone_handler(void); @@ -76,23 +80,22 @@ static inline long stub_syscall5(long syscall, long arg1, long arg2, long arg3, return ret; } -static inline long stub_syscall6(long syscall, long arg1, long arg2, long arg3, - long arg4, long arg5, long arg6) +static inline void trap_myself(void) { - long ret; - - __asm__ volatile ("push %%ebp ; movl %%eax,%%ebp ; movl %1,%%eax ; " - "int $0x80 ; pop %%ebp" - : "=a" (ret) - : "g" (syscall), "b" (arg1), "c" (arg2), "d" (arg3), - "S" (arg4), "D" (arg5), "0" (arg6)); - - return ret; + __asm("int3"); } -static inline void trap_myself(void) +static inline void remap_stack(int fd, unsigned long offset) { - __asm("int3"); + __asm__ volatile ("movl %%eax,%%ebp ; movl %0,%%eax ; int $0x80 ;" + "movl %7, %%ebx ; movl %%eax, (%%ebx)" + : : "g" (STUB_MMAP_NR), "b" (UML_CONFIG_STUB_DATA), + "c" (UM_KERN_PAGE_SIZE), + "d" (PROT_READ | PROT_WRITE), + "S" (MAP_FIXED | MAP_SHARED), "D" (fd), + "a" (offset), + "i" (&((struct stub_data *) UML_CONFIG_STUB_DATA)->err) + : "memory"); } #endif diff --git a/arch/um/include/sysdep-x86_64/stub.h b/arch/um/include/sysdep-x86_64/stub.h index c41689c13dc..92e989f8176 100644 --- a/arch/um/include/sysdep-x86_64/stub.h +++ b/arch/um/include/sysdep-x86_64/stub.h @@ -6,8 +6,12 @@ #ifndef __SYSDEP_STUB_H #define __SYSDEP_STUB_H +#include <sys/mman.h> #include <asm/unistd.h> #include <sysdep/ptrace_user.h> +#include "stub-data.h" +#include "kern_constants.h" +#include "uml-config.h" extern void stub_segv_handler(int sig); extern void stub_clone_handler(void); @@ -81,23 +85,23 @@ static inline long stub_syscall5(long syscall, long arg1, long arg2, long arg3, return ret; } -static inline long stub_syscall6(long syscall, long arg1, long arg2, long arg3, - long arg4, long arg5, long arg6) +static inline void trap_myself(void) { - long ret; - - __asm__ volatile ("movq %5,%%r10 ; movq %6,%%r8 ; " - "movq %7, %%r9; " __syscall : "=a" (ret) - : "0" (syscall), "D" (arg1), "S" (arg2), "d" (arg3), - "g" (arg4), "g" (arg5), "g" (arg6) - : __syscall_clobber, "r10", "r8", "r9" ); - - return ret; + __asm("int3"); } -static inline void trap_myself(void) +static inline void remap_stack(long fd, unsigned long offset) { - __asm("int3"); + __asm__ volatile ("movq %4,%%r10 ; movq %5,%%r8 ; " + "movq %6, %%r9; " __syscall "; movq %7, %%rbx ; " + "movq %%rax, (%%rbx)": + : "a" (STUB_MMAP_NR), "D" (UML_CONFIG_STUB_DATA), + "S" (UM_KERN_PAGE_SIZE), + "d" (PROT_READ | PROT_WRITE), + "g" (MAP_FIXED | MAP_SHARED), "g" (fd), + "g" (offset), + "i" (&((struct stub_data *) UML_CONFIG_STUB_DATA)->err) + : __syscall_clobber, "r10", "r8", "r9" ); } #endif diff --git a/arch/um/kernel/skas/clone.c b/arch/um/kernel/skas/clone.c index cb37ce9124a..47b812b3bca 100644 --- a/arch/um/kernel/skas/clone.c +++ b/arch/um/kernel/skas/clone.c @@ -18,11 +18,10 @@ * on some systems. */ -#define STUB_DATA(field) (((struct stub_data *) UML_CONFIG_STUB_DATA)->field) - void __attribute__ ((__section__ (".__syscall_stub"))) stub_clone_handler(void) { + struct stub_data *data = (struct stub_data *) UML_CONFIG_STUB_DATA; long err; err = stub_syscall2(__NR_clone, CLONE_PARENT | CLONE_FILES | SIGCHLD, @@ -35,17 +34,21 @@ stub_clone_handler(void) if(err) goto out; - err = stub_syscall3(__NR_setitimer, ITIMER_VIRTUAL, - (long) &STUB_DATA(timer), 0); + err = stub_syscall3(__NR_setitimer, ITIMER_VIRTUAL, + (long) &data->timer, 0); if(err) goto out; - err = stub_syscall6(STUB_MMAP_NR, UML_CONFIG_STUB_DATA, - UM_KERN_PAGE_SIZE, PROT_READ | PROT_WRITE, - MAP_FIXED | MAP_SHARED, STUB_DATA(fd), - STUB_DATA(offset)); + remap_stack(data->fd, data->offset); + goto done; + out: - /* save current result. Parent: pid; child: retcode of mmap */ - STUB_DATA(err) = err; + /* save current result. + * Parent: pid; + * child: retcode of mmap already saved and it jumps around this + * assignment + */ + data->err = err; + done: trap_myself(); } diff --git a/arch/um/scripts/Makefile.rules b/arch/um/scripts/Makefile.rules index b3fbf125709..2e41cabd3d9 100644 --- a/arch/um/scripts/Makefile.rules +++ b/arch/um/scripts/Makefile.rules @@ -21,11 +21,6 @@ define unprofile endef -# The stubs and unmap.o can't try to call mcount or update basic block data -define unprofile - $(patsubst -pg,,$(patsubst -fprofile-arcs -ftest-coverage,,$(1))) -endef - # cmd_make_link checks to see if the $(foo-dir) variable starts with a /. If # so, it's considered to be a path relative to $(srcdir) rather than # $(srcdir)/arch/$(SUBARCH). This is because x86_64 wants to get ldt.c from diff --git a/arch/x86_64/mm/ioremap.c b/arch/x86_64/mm/ioremap.c index 0d260e4492f..ae207064201 100644 --- a/arch/x86_64/mm/ioremap.c +++ b/arch/x86_64/mm/ioremap.c @@ -263,7 +263,7 @@ void iounmap(volatile void __iomem *addr) addr < phys_to_virt(ISA_END_ADDRESS)) return; - addr = (volatile void *)(PAGE_MASK & (unsigned long __force)addr); + addr = (volatile void __iomem *)(PAGE_MASK & (unsigned long __force)addr); /* Use the vm area unlocked, assuming the caller ensures there isn't another iounmap for the same address in parallel. Reuse of the virtual address is prevented by diff --git a/arch/x86_64/pci/mmconfig.c b/arch/x86_64/pci/mmconfig.c index 9c4f907e301..f16c0d57c55 100644 --- a/arch/x86_64/pci/mmconfig.c +++ b/arch/x86_64/pci/mmconfig.c @@ -18,11 +18,11 @@ static DECLARE_BITMAP(fallback_slots, 32); /* Static virtual mapping of the MMCONFIG aperture */ struct mmcfg_virt { struct acpi_table_mcfg_config *cfg; - char *virt; + char __iomem *virt; }; static struct mmcfg_virt *pci_mmcfg_virt; -static char *get_virt(unsigned int seg, unsigned bus) +static char __iomem *get_virt(unsigned int seg, unsigned bus) { int cfg_num = -1; struct acpi_table_mcfg_config *cfg; @@ -43,9 +43,9 @@ static char *get_virt(unsigned int seg, unsigned bus) } } -static char *pci_dev_base(unsigned int seg, unsigned int bus, unsigned int devfn) +static char __iomem *pci_dev_base(unsigned int seg, unsigned int bus, unsigned int devfn) { - char *addr; + char __iomem *addr; if (seg == 0 && bus == 0 && test_bit(PCI_SLOT(devfn), &fallback_slots)) return NULL; addr = get_virt(seg, bus); @@ -57,7 +57,7 @@ static char *pci_dev_base(unsigned int seg, unsigned int bus, unsigned int devfn static int pci_mmcfg_read(unsigned int seg, unsigned int bus, unsigned int devfn, int reg, int len, u32 *value) { - char *addr; + char __iomem *addr; /* Why do we have this when nobody checks it. How about a BUG()!? -AK */ if (unlikely(!value || (bus > 255) || (devfn > 255) || (reg > 4095))) @@ -85,7 +85,7 @@ static int pci_mmcfg_read(unsigned int seg, unsigned int bus, static int pci_mmcfg_write(unsigned int seg, unsigned int bus, unsigned int devfn, int reg, int len, u32 value) { - char *addr; + char __iomem *addr; /* Why do we have this when nobody checks it. How about a BUG()!? -AK */ if (unlikely((bus > 255) || (devfn > 255) || (reg > 4095))) @@ -127,7 +127,7 @@ static __init void unreachable_devices(void) int i; for (i = 0; i < 32; i++) { u32 val1; - char *addr; + char __iomem *addr; pci_conf1_read(0, 0, PCI_DEVFN(i,0), 0, 4, &val1); if (val1 == 0xffffffff) |