diff options
Diffstat (limited to 'arch/powerpc')
27 files changed, 268 insertions, 204 deletions
diff --git a/arch/powerpc/boot/dts/sequoia.dts b/arch/powerpc/boot/dts/sequoia.dts index a1ae4d6ec99..72d67564bdf 100644 --- a/arch/powerpc/boot/dts/sequoia.dts +++ b/arch/powerpc/boot/dts/sequoia.dts @@ -342,9 +342,14 @@ /* Outbound ranges, one memory and one IO, * later cannot be changed. Chip supports a second * IO range but we don't use it for now + * From the 440EPx user manual: + * PCI 1 Memory 1 8000 0000 1 BFFF FFFF 1GB + * I/O 1 E800 0000 1 E800 FFFF 64KB + * I/O 1 E880 0000 1 EBFF FFFF 56MB */ - ranges = <02000000 0 80000000 1 80000000 0 10000000 - 01000000 0 00000000 1 e8000000 0 00100000>; + ranges = <02000000 0 80000000 1 80000000 0 40000000 + 01000000 0 00000000 1 e8000000 0 00010000 + 01000000 0 00000000 1 e8800000 0 03800000>; /* Inbound 2GB range starting at 0 */ dma-ranges = <42000000 0 0 0 0 0 80000000>; diff --git a/arch/powerpc/kernel/asm-offsets.c b/arch/powerpc/kernel/asm-offsets.c index af1d2c894ee..ec9228d687b 100644 --- a/arch/powerpc/kernel/asm-offsets.c +++ b/arch/powerpc/kernel/asm-offsets.c @@ -30,6 +30,7 @@ #include <linux/time.h> #include <linux/hardirq.h> #endif +#include <linux/kbuild.h> #include <asm/io.h> #include <asm/page.h> @@ -51,11 +52,6 @@ #include <asm/iseries/alpaca.h> #endif -#define DEFINE(sym, val) \ - asm volatile("\n->" #sym " %0 " #val : : "i" (val)) - -#define BLANK() asm volatile("\n->" : : ) - int main(void) { DEFINE(THREAD, offsetof(struct task_struct, thread)); diff --git a/arch/powerpc/kernel/head_44x.S b/arch/powerpc/kernel/head_44x.S index b84ec6a2fc9..c2b9dc4fce5 100644 --- a/arch/powerpc/kernel/head_44x.S +++ b/arch/powerpc/kernel/head_44x.S @@ -653,7 +653,14 @@ finish_tlb_load: rlwimi r10, r11, 0, 26, 26 /* UX = HWEXEC & USER */ rlwimi r12, r10, 0, 26, 31 /* Insert static perms */ - rlwinm r12, r12, 0, 20, 15 /* Clear U0-U3 */ + + /* + * Clear U0-U3 and WL1 IL1I IL1D IL2I IL2D bits which are added + * on newer 440 cores like the 440x6 used on AMCC 460EX/460GT (see + * include/asm-powerpc/pgtable-ppc32.h for details). + */ + rlwinm r12, r12, 0, 20, 10 + tlbwe r12, r13, PPC44x_TLB_ATTRIB /* Write ATTRIB */ /* Done...restore registers and get out of here. diff --git a/arch/powerpc/kernel/lparcfg.c b/arch/powerpc/kernel/lparcfg.c index 1ffacc698ff..1e656b43ad7 100644 --- a/arch/powerpc/kernel/lparcfg.c +++ b/arch/powerpc/kernel/lparcfg.c @@ -591,10 +591,8 @@ int __init lparcfg_init(void) !firmware_has_feature(FW_FEATURE_ISERIES)) mode |= S_IWUSR; - ent = create_proc_entry("ppc64/lparcfg", mode, NULL); - if (ent) { - ent->proc_fops = &lparcfg_fops; - } else { + ent = proc_create("ppc64/lparcfg", mode, NULL, &lparcfg_fops); + if (!ent) { printk(KERN_ERR "Failed to create ppc64/lparcfg\n"); return -EIO; } diff --git a/arch/powerpc/kernel/ppc_ksyms.c b/arch/powerpc/kernel/ppc_ksyms.c index 09fcb50c45a..cf6b5a7d8b3 100644 --- a/arch/powerpc/kernel/ppc_ksyms.c +++ b/arch/powerpc/kernel/ppc_ksyms.c @@ -133,9 +133,6 @@ EXPORT_SYMBOL(adb_try_handler_change); EXPORT_SYMBOL(cuda_request); EXPORT_SYMBOL(cuda_poll); #endif /* CONFIG_ADB_CUDA */ -#ifdef CONFIG_VT -EXPORT_SYMBOL(kd_mksound); -#endif EXPORT_SYMBOL(to_tm); #ifdef CONFIG_PPC32 diff --git a/arch/powerpc/kernel/proc_ppc64.c b/arch/powerpc/kernel/proc_ppc64.c index f78dfce1b77..c647ddef40d 100644 --- a/arch/powerpc/kernel/proc_ppc64.c +++ b/arch/powerpc/kernel/proc_ppc64.c @@ -68,12 +68,11 @@ static int __init proc_ppc64_init(void) { struct proc_dir_entry *pde; - pde = create_proc_entry("ppc64/systemcfg", S_IFREG|S_IRUGO, NULL); + pde = proc_create_data("ppc64/systemcfg", S_IFREG|S_IRUGO, NULL, + &page_map_fops, vdso_data); if (!pde) return 1; - pde->data = vdso_data; pde->size = PAGE_SIZE; - pde->proc_fops = &page_map_fops; return 0; } diff --git a/arch/powerpc/kernel/rtas-proc.c b/arch/powerpc/kernel/rtas-proc.c index f2e3bc714d7..f9c6abc84a9 100644 --- a/arch/powerpc/kernel/rtas-proc.c +++ b/arch/powerpc/kernel/rtas-proc.c @@ -255,8 +255,6 @@ static void check_location(struct seq_file *m, const char *c); static int __init proc_rtas_init(void) { - struct proc_dir_entry *entry; - if (!machine_is(pseries)) return -ENODEV; @@ -264,35 +262,20 @@ static int __init proc_rtas_init(void) if (rtas_node == NULL) return -ENODEV; - entry = create_proc_entry("ppc64/rtas/progress", S_IRUGO|S_IWUSR, NULL); - if (entry) - entry->proc_fops = &ppc_rtas_progress_operations; - - entry = create_proc_entry("ppc64/rtas/clock", S_IRUGO|S_IWUSR, NULL); - if (entry) - entry->proc_fops = &ppc_rtas_clock_operations; - - entry = create_proc_entry("ppc64/rtas/poweron", S_IWUSR|S_IRUGO, NULL); - if (entry) - entry->proc_fops = &ppc_rtas_poweron_operations; - - entry = create_proc_entry("ppc64/rtas/sensors", S_IRUGO, NULL); - if (entry) - entry->proc_fops = &ppc_rtas_sensors_operations; - - entry = create_proc_entry("ppc64/rtas/frequency", S_IWUSR|S_IRUGO, - NULL); - if (entry) - entry->proc_fops = &ppc_rtas_tone_freq_operations; - - entry = create_proc_entry("ppc64/rtas/volume", S_IWUSR|S_IRUGO, NULL); - if (entry) - entry->proc_fops = &ppc_rtas_tone_volume_operations; - - entry = create_proc_entry("ppc64/rtas/rmo_buffer", S_IRUSR, NULL); - if (entry) - entry->proc_fops = &ppc_rtas_rmo_buf_ops; - + proc_create("ppc64/rtas/progress", S_IRUGO|S_IWUSR, NULL, + &ppc_rtas_progress_operations); + proc_create("ppc64/rtas/clock", S_IRUGO|S_IWUSR, NULL, + &ppc_rtas_clock_operations); + proc_create("ppc64/rtas/poweron", S_IWUSR|S_IRUGO, NULL, + &ppc_rtas_poweron_operations); + proc_create("ppc64/rtas/sensors", S_IRUGO, NULL, + &ppc_rtas_sensors_operations); + proc_create("ppc64/rtas/frequency", S_IWUSR|S_IRUGO, NULL, + &ppc_rtas_tone_freq_operations); + proc_create("ppc64/rtas/volume", S_IWUSR|S_IRUGO, NULL, + &ppc_rtas_tone_volume_operations); + proc_create("ppc64/rtas/rmo_buffer", S_IRUSR, NULL, + &ppc_rtas_rmo_buf_ops); return 0; } diff --git a/arch/powerpc/kernel/rtas_flash.c b/arch/powerpc/kernel/rtas_flash.c index 627f126d184..0a5e22b2272 100644 --- a/arch/powerpc/kernel/rtas_flash.c +++ b/arch/powerpc/kernel/rtas_flash.c @@ -704,18 +704,11 @@ static int initialize_flash_pde_data(const char *rtas_call_name, static struct proc_dir_entry *create_flash_pde(const char *filename, const struct file_operations *fops) { - struct proc_dir_entry *ent = NULL; - - ent = create_proc_entry(filename, S_IRUSR | S_IWUSR, NULL); - if (ent != NULL) { - ent->proc_fops = fops; - ent->owner = THIS_MODULE; - } - - return ent; + return proc_create(filename, S_IRUSR | S_IWUSR, NULL, fops); } static const struct file_operations rtas_flash_operations = { + .owner = THIS_MODULE, .read = rtas_flash_read, .write = rtas_flash_write, .open = rtas_excl_open, @@ -723,6 +716,7 @@ static const struct file_operations rtas_flash_operations = { }; static const struct file_operations manage_flash_operations = { + .owner = THIS_MODULE, .read = manage_flash_read, .write = manage_flash_write, .open = rtas_excl_open, @@ -730,6 +724,7 @@ static const struct file_operations manage_flash_operations = { }; static const struct file_operations validate_flash_operations = { + .owner = THIS_MODULE, .read = validate_flash_read, .write = validate_flash_write, .open = rtas_excl_open, diff --git a/arch/powerpc/kernel/syscalls.c b/arch/powerpc/kernel/syscalls.c index e722a4eeb5d..4fe69ca2448 100644 --- a/arch/powerpc/kernel/syscalls.c +++ b/arch/powerpc/kernel/syscalls.c @@ -136,23 +136,6 @@ int sys_ipc(uint call, int first, unsigned long second, long third, return ret; } -/* - * sys_pipe() is the normal C calling standard for creating - * a pipe. It's not the way unix traditionally does this, though. - */ -int sys_pipe(int __user *fildes) -{ - int fd[2]; - int error; - - error = do_pipe(fd); - if (!error) { - if (copy_to_user(fildes, fd, 2*sizeof(int))) - error = -EFAULT; - } - return error; -} - static inline unsigned long do_mmap2(unsigned long addr, size_t len, unsigned long prot, unsigned long flags, unsigned long fd, unsigned long off, int shift) diff --git a/arch/powerpc/kernel/time.c b/arch/powerpc/kernel/time.c index 3b26fbd6bec..73401e83739 100644 --- a/arch/powerpc/kernel/time.c +++ b/arch/powerpc/kernel/time.c @@ -149,7 +149,7 @@ EXPORT_SYMBOL(tb_ticks_per_sec); /* for cputime_t conversions */ u64 tb_to_xs; unsigned tb_to_us; -#define TICKLEN_SCALE TICK_LENGTH_SHIFT +#define TICKLEN_SCALE NTP_SCALE_SHIFT u64 last_tick_len; /* units are ns / 2^TICKLEN_SCALE */ u64 ticklen_to_xs; /* 0.64 fraction */ @@ -1007,8 +1007,6 @@ void __init time_init(void) vdso_data->stamp_xsec = (u64) xtime.tv_sec * XSEC_PER_SEC; vdso_data->tb_to_xs = tb_to_xs; - time_freq = 0; - write_sequnlock_irqrestore(&xtime_lock, flags); /* Register the clocksource, if we're not running on iSeries */ diff --git a/arch/powerpc/kvm/booke_guest.c b/arch/powerpc/kvm/booke_guest.c index 6d9884a6884..712d89a28c4 100644 --- a/arch/powerpc/kvm/booke_guest.c +++ b/arch/powerpc/kvm/booke_guest.c @@ -49,6 +49,7 @@ struct kvm_stats_debugfs_item debugfs_entries[] = { { "inst_emu", VCPU_STAT(emulated_inst_exits) }, { "dec", VCPU_STAT(dec_exits) }, { "ext_intr", VCPU_STAT(ext_intr_exits) }, + { "halt_wakeup", VCPU_STAT(halt_wakeup) }, { NULL } }; @@ -338,6 +339,11 @@ int kvmppc_handle_exit(struct kvm_run *run, struct kvm_vcpu *vcpu, } break; + case BOOKE_INTERRUPT_FP_UNAVAIL: + kvmppc_queue_exception(vcpu, exit_nr); + r = RESUME_GUEST; + break; + case BOOKE_INTERRUPT_DATA_STORAGE: vcpu->arch.dear = vcpu->arch.fault_dear; vcpu->arch.esr = vcpu->arch.fault_esr; diff --git a/arch/powerpc/kvm/powerpc.c b/arch/powerpc/kvm/powerpc.c index bad40bd2d3a..777e0f34e0e 100644 --- a/arch/powerpc/kvm/powerpc.c +++ b/arch/powerpc/kvm/powerpc.c @@ -36,13 +36,12 @@ gfn_t unalias_gfn(struct kvm *kvm, gfn_t gfn) int kvm_cpu_has_interrupt(struct kvm_vcpu *v) { - /* XXX implement me */ - return 0; + return !!(v->arch.pending_exceptions); } int kvm_arch_vcpu_runnable(struct kvm_vcpu *v) { - return 1; + return !(v->arch.msr & MSR_WE); } @@ -214,6 +213,11 @@ static void kvmppc_decrementer_func(unsigned long data) struct kvm_vcpu *vcpu = (struct kvm_vcpu *)data; kvmppc_queue_exception(vcpu, BOOKE_INTERRUPT_DECREMENTER); + + if (waitqueue_active(&vcpu->wq)) { + wake_up_interruptible(&vcpu->wq); + vcpu->stat.halt_wakeup++; + } } int kvm_arch_vcpu_init(struct kvm_vcpu *vcpu) @@ -339,6 +343,8 @@ int kvm_arch_vcpu_ioctl_run(struct kvm_vcpu *vcpu, struct kvm_run *run) int r; sigset_t sigsaved; + vcpu_load(vcpu); + if (vcpu->sigset_active) sigprocmask(SIG_SETMASK, &vcpu->sigset, &sigsaved); @@ -363,12 +369,20 @@ int kvm_arch_vcpu_ioctl_run(struct kvm_vcpu *vcpu, struct kvm_run *run) if (vcpu->sigset_active) sigprocmask(SIG_SETMASK, &sigsaved, NULL); + vcpu_put(vcpu); + return r; } int kvm_vcpu_ioctl_interrupt(struct kvm_vcpu *vcpu, struct kvm_interrupt *irq) { kvmppc_queue_exception(vcpu, BOOKE_INTERRUPT_EXTERNAL); + + if (waitqueue_active(&vcpu->wq)) { + wake_up_interruptible(&vcpu->wq); + vcpu->stat.halt_wakeup++; + } + return 0; } diff --git a/arch/powerpc/lib/Makefile b/arch/powerpc/lib/Makefile index 4bb023f4c86..f1d2cdc5331 100644 --- a/arch/powerpc/lib/Makefile +++ b/arch/powerpc/lib/Makefile @@ -23,3 +23,4 @@ obj-$(CONFIG_SMP) += locks.o endif obj-$(CONFIG_PPC_LIB_RHEAP) += rheap.o +obj-$(CONFIG_HAS_IOMEM) += devres.o diff --git a/arch/powerpc/lib/devres.c b/arch/powerpc/lib/devres.c new file mode 100644 index 00000000000..292115d98ea --- /dev/null +++ b/arch/powerpc/lib/devres.c @@ -0,0 +1,42 @@ +/* + * Copyright (C) 2008 Freescale Semiconductor, Inc. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version + * 2 of the License, or (at your option) any later version. + */ + +#include <linux/device.h> /* devres_*(), devm_ioremap_release() */ +#include <linux/io.h> /* ioremap_flags() */ +#include <linux/module.h> /* EXPORT_SYMBOL() */ + +/** + * devm_ioremap_prot - Managed ioremap_flags() + * @dev: Generic device to remap IO address for + * @offset: BUS offset to map + * @size: Size of map + * @flags: Page flags + * + * Managed ioremap_prot(). Map is automatically unmapped on driver + * detach. + */ +void __iomem *devm_ioremap_prot(struct device *dev, resource_size_t offset, + size_t size, unsigned long flags) +{ + void __iomem **ptr, *addr; + + ptr = devres_alloc(devm_ioremap_release, sizeof(*ptr), GFP_KERNEL); + if (!ptr) + return NULL; + + addr = ioremap_flags(offset, size, flags); + if (addr) { + *ptr = addr; + devres_add(dev, ptr); + } else + devres_free(ptr); + + return addr; +} +EXPORT_SYMBOL(devm_ioremap_prot); diff --git a/arch/powerpc/platforms/cell/spufs/coredump.c b/arch/powerpc/platforms/cell/spufs/coredump.c index b962c3ab470..af116aadba1 100644 --- a/arch/powerpc/platforms/cell/spufs/coredump.c +++ b/arch/powerpc/platforms/cell/spufs/coredump.c @@ -22,6 +22,7 @@ #include <linux/elf.h> #include <linux/file.h> +#include <linux/fdtable.h> #include <linux/fs.h> #include <linux/list.h> #include <linux/module.h> diff --git a/arch/powerpc/platforms/cell/spufs/sched.c b/arch/powerpc/platforms/cell/spufs/sched.c index 8a05ac863a2..2e411f23462 100644 --- a/arch/powerpc/platforms/cell/spufs/sched.c +++ b/arch/powerpc/platforms/cell/spufs/sched.c @@ -1068,10 +1068,9 @@ int __init spu_sched_init(void) mod_timer(&spuloadavg_timer, 0); - entry = create_proc_entry("spu_loadavg", 0, NULL); + entry = proc_create("spu_loadavg", 0, NULL, &spu_loadavg_fops); if (!entry) goto out_stop_kthread; - entry->proc_fops = &spu_loadavg_fops; pr_debug("spusched: tick: %d, min ticks: %d, default ticks: %d\n", SPUSCHED_TICK, MIN_SPU_TIMESLICE, DEF_SPU_TIMESLICE); diff --git a/arch/powerpc/platforms/cell/spufs/sputrace.c b/arch/powerpc/platforms/cell/spufs/sputrace.c index b9c79eda335..53202422ba7 100644 --- a/arch/powerpc/platforms/cell/spufs/sputrace.c +++ b/arch/powerpc/platforms/cell/spufs/sputrace.c @@ -201,10 +201,9 @@ static int __init sputrace_init(void) if (!sputrace_log) goto out; - entry = create_proc_entry("sputrace", S_IRUSR, NULL); + entry = proc_create("sputrace", S_IRUSR, NULL, &sputrace_fops); if (!entry) goto out_free_log; - entry->proc_fops = &sputrace_fops; for (i = 0; i < ARRAY_SIZE(spu_probes); i++) { struct spu_probe *p = &spu_probes[i]; diff --git a/arch/powerpc/platforms/iseries/lpevents.c b/arch/powerpc/platforms/iseries/lpevents.c index e5b40e3e008..b0f8a857ec0 100644 --- a/arch/powerpc/platforms/iseries/lpevents.c +++ b/arch/powerpc/platforms/iseries/lpevents.c @@ -330,15 +330,11 @@ static const struct file_operations proc_lpevents_operations = { static int __init proc_lpevents_init(void) { - struct proc_dir_entry *e; - if (!firmware_has_feature(FW_FEATURE_ISERIES)) return 0; - e = create_proc_entry("iSeries/lpevents", S_IFREG|S_IRUGO, NULL); - if (e) - e->proc_fops = &proc_lpevents_operations; - + proc_create("iSeries/lpevents", S_IFREG|S_IRUGO, NULL, + &proc_lpevents_operations); return 0; } __initcall(proc_lpevents_init); diff --git a/arch/powerpc/platforms/iseries/mf.c b/arch/powerpc/platforms/iseries/mf.c index c0f2433bc16..1dc7295746d 100644 --- a/arch/powerpc/platforms/iseries/mf.c +++ b/arch/powerpc/platforms/iseries/mf.c @@ -1255,11 +1255,11 @@ static int __init mf_proc_init(void) if (i == 3) /* no vmlinux entry for 'D' */ continue; - ent = create_proc_entry("vmlinux", S_IFREG|S_IWUSR, mf); + ent = proc_create_data("vmlinux", S_IFREG|S_IWUSR, mf, + &proc_vmlinux_operations, + (void *)(long)i); if (!ent) return 1; - ent->data = (void *)(long)i; - ent->proc_fops = &proc_vmlinux_operations; } ent = create_proc_entry("side", S_IFREG|S_IRUSR|S_IWUSR, mf_proc_root); diff --git a/arch/powerpc/platforms/iseries/proc.c b/arch/powerpc/platforms/iseries/proc.c index f2cde418020..91f4c6cd4b9 100644 --- a/arch/powerpc/platforms/iseries/proc.c +++ b/arch/powerpc/platforms/iseries/proc.c @@ -110,15 +110,11 @@ static const struct file_operations proc_titantod_operations = { static int __init iseries_proc_init(void) { - struct proc_dir_entry *e; - if (!firmware_has_feature(FW_FEATURE_ISERIES)) return 0; - e = create_proc_entry("iSeries/titanTod", S_IFREG|S_IRUGO, NULL); - if (e) - e->proc_fops = &proc_titantod_operations; - + proc_create("iSeries/titanTod", S_IFREG|S_IRUGO, NULL, + &proc_titantod_operations); return 0; } __initcall(iseries_proc_init); diff --git a/arch/powerpc/platforms/iseries/viopath.c b/arch/powerpc/platforms/iseries/viopath.c index df23331eb25..49ff4dc422b 100644 --- a/arch/powerpc/platforms/iseries/viopath.c +++ b/arch/powerpc/platforms/iseries/viopath.c @@ -180,15 +180,10 @@ static const struct file_operations proc_viopath_operations = { static int __init vio_proc_init(void) { - struct proc_dir_entry *e; - if (!firmware_has_feature(FW_FEATURE_ISERIES)) return 0; - e = create_proc_entry("iSeries/config", 0, NULL); - if (e) - e->proc_fops = &proc_viopath_operations; - + proc_create("iSeries/config", 0, NULL, &proc_viopath_operations); return 0; } __initcall(vio_proc_init); diff --git a/arch/powerpc/platforms/pseries/eeh.c b/arch/powerpc/platforms/pseries/eeh.c index a3fd56b186e..6f544ba4b37 100644 --- a/arch/powerpc/platforms/pseries/eeh.c +++ b/arch/powerpc/platforms/pseries/eeh.c @@ -1259,14 +1259,8 @@ static const struct file_operations proc_eeh_operations = { static int __init eeh_init_proc(void) { - struct proc_dir_entry *e; - - if (machine_is(pseries)) { - e = create_proc_entry("ppc64/eeh", 0, NULL); - if (e) - e->proc_fops = &proc_eeh_operations; - } - + if (machine_is(pseries)) + proc_create("ppc64/eeh", 0, NULL, &proc_eeh_operations); return 0; } __initcall(eeh_init_proc); diff --git a/arch/powerpc/platforms/pseries/reconfig.c b/arch/powerpc/platforms/pseries/reconfig.c index ac75c10de27..75769aae41d 100644 --- a/arch/powerpc/platforms/pseries/reconfig.c +++ b/arch/powerpc/platforms/pseries/reconfig.c @@ -512,12 +512,9 @@ static int proc_ppc64_create_ofdt(void) if (!machine_is(pseries)) return 0; - ent = create_proc_entry("ppc64/ofdt", S_IWUSR, NULL); - if (ent) { - ent->data = NULL; + ent = proc_create("ppc64/ofdt", S_IWUSR, NULL, &ofdt_fops); + if (ent) ent->size = 0; - ent->proc_fops = &ofdt_fops; - } return 0; } diff --git a/arch/powerpc/platforms/pseries/rtasd.c b/arch/powerpc/platforms/pseries/rtasd.c index befadd4f952..7d3e2b0bd4d 100644 --- a/arch/powerpc/platforms/pseries/rtasd.c +++ b/arch/powerpc/platforms/pseries/rtasd.c @@ -468,10 +468,9 @@ static int __init rtas_init(void) return -ENOMEM; } - entry = create_proc_entry("ppc64/rtas/error_log", S_IRUSR, NULL); - if (entry) - entry->proc_fops = &proc_rtas_log_operations; - else + entry = proc_create("ppc64/rtas/error_log", S_IRUSR, NULL, + &proc_rtas_log_operations); + if (!entry) printk(KERN_ERR "Failed to create error_log proc entry\n"); if (kernel_thread(rtasd, NULL, CLONE_FS) < 0) diff --git a/arch/powerpc/platforms/pseries/scanlog.c b/arch/powerpc/platforms/pseries/scanlog.c index bec3803f061..417eca79df6 100644 --- a/arch/powerpc/platforms/pseries/scanlog.c +++ b/arch/powerpc/platforms/pseries/scanlog.c @@ -55,11 +55,6 @@ static ssize_t scanlog_read(struct file *file, char __user *buf, dp = PDE(inode); data = (unsigned int *)dp->data; - if (!data) { - printk(KERN_ERR "scanlog: read failed no data\n"); - return -EIO; - } - if (count > RTAS_DATA_BUF_SIZE) count = RTAS_DATA_BUF_SIZE; @@ -146,11 +141,6 @@ static int scanlog_open(struct inode * inode, struct file * file) struct proc_dir_entry *dp = PDE(inode); unsigned int *data = (unsigned int *)dp->data; - if (!data) { - printk(KERN_ERR "scanlog: open failed no data\n"); - return -EIO; - } - if (data[0] != 0) { /* This imperfect test stops a second copy of the * data (or a reset while data is being copied) @@ -168,10 +158,6 @@ static int scanlog_release(struct inode * inode, struct file * file) struct proc_dir_entry *dp = PDE(inode); unsigned int *data = (unsigned int *)dp->data; - if (!data) { - printk(KERN_ERR "scanlog: release failed no data\n"); - return -EIO; - } data[0] = 0; return 0; @@ -200,12 +186,11 @@ static int __init scanlog_init(void) if (!data) goto err; - ent = proc_create("ppc64/rtas/scan-log-dump", S_IRUSR, NULL, - &scanlog_fops); + ent = proc_create_data("ppc64/rtas/scan-log-dump", S_IRUSR, NULL, + &scanlog_fops, data); if (!ent) goto err; - ent->data = data; proc_ppc64_scan_log_dump = ent; return 0; diff --git a/arch/powerpc/sysdev/fsl_soc.c b/arch/powerpc/sysdev/fsl_soc.c index b59408798fd..3a7054e2bb7 100644 --- a/arch/powerpc/sysdev/fsl_soc.c +++ b/arch/powerpc/sysdev/fsl_soc.c @@ -418,22 +418,21 @@ arch_initcall(gfar_of_init); #include <linux/i2c.h> struct i2c_driver_device { char *of_device; - char *i2c_driver; char *i2c_type; }; static struct i2c_driver_device i2c_devices[] __initdata = { - {"ricoh,rs5c372a", "rtc-rs5c372", "rs5c372a",}, - {"ricoh,rs5c372b", "rtc-rs5c372", "rs5c372b",}, - {"ricoh,rv5c386", "rtc-rs5c372", "rv5c386",}, - {"ricoh,rv5c387a", "rtc-rs5c372", "rv5c387a",}, - {"dallas,ds1307", "rtc-ds1307", "ds1307",}, - {"dallas,ds1337", "rtc-ds1307", "ds1337",}, - {"dallas,ds1338", "rtc-ds1307", "ds1338",}, - {"dallas,ds1339", "rtc-ds1307", "ds1339",}, - {"dallas,ds1340", "rtc-ds1307", "ds1340",}, - {"stm,m41t00", "rtc-ds1307", "m41t00"}, - {"dallas,ds1374", "rtc-ds1374", "rtc-ds1374",}, + {"ricoh,rs5c372a", "rs5c372a"}, + {"ricoh,rs5c372b", "rs5c372b"}, + {"ricoh,rv5c386", "rv5c386"}, + {"ricoh,rv5c387a", "rv5c387a"}, + {"dallas,ds1307", "ds1307"}, + {"dallas,ds1337", "ds1337"}, + {"dallas,ds1338", "ds1338"}, + {"dallas,ds1339", "ds1339"}, + {"dallas,ds1340", "ds1340"}, + {"stm,m41t00", "m41t00"}, + {"dallas,ds1374", "rtc-ds1374"}, }; static int __init of_find_i2c_driver(struct device_node *node, @@ -444,9 +443,7 @@ static int __init of_find_i2c_driver(struct device_node *node, for (i = 0; i < ARRAY_SIZE(i2c_devices); i++) { if (!of_device_is_compatible(node, i2c_devices[i].of_device)) continue; - if (strlcpy(info->driver_name, i2c_devices[i].i2c_driver, - KOBJ_NAME_LEN) >= KOBJ_NAME_LEN || - strlcpy(info->type, i2c_devices[i].i2c_type, + if (strlcpy(info->type, i2c_devices[i].i2c_type, I2C_NAME_SIZE) >= I2C_NAME_SIZE) return -ENOMEM; return 0; diff --git a/arch/powerpc/sysdev/ppc4xx_pci.c b/arch/powerpc/sysdev/ppc4xx_pci.c index 1814adbd223..b4a54c52e88 100644 --- a/arch/powerpc/sysdev/ppc4xx_pci.c +++ b/arch/powerpc/sysdev/ppc4xx_pci.c @@ -1387,28 +1387,59 @@ static void __init ppc4xx_configure_pciex_PIMs(struct ppc4xx_pciex_port *port, resource_size_t size = res->end - res->start + 1; u64 sa; - /* Calculate window size */ - sa = (0xffffffffffffffffull << ilog2(size));; - if (res->flags & IORESOURCE_PREFETCH) - sa |= 0x8; + if (port->endpoint) { + resource_size_t ep_addr = 0; + resource_size_t ep_size = 32 << 20; + + /* Currently we map a fixed 64MByte window to PLB address + * 0 (SDRAM). This should probably be configurable via a dts + * property. + */ + + /* Calculate window size */ + sa = (0xffffffffffffffffull << ilog2(ep_size));; + + /* Setup BAR0 */ + out_le32(mbase + PECFG_BAR0HMPA, RES_TO_U32_HIGH(sa)); + out_le32(mbase + PECFG_BAR0LMPA, RES_TO_U32_LOW(sa) | + PCI_BASE_ADDRESS_MEM_TYPE_64); - out_le32(mbase + PECFG_BAR0HMPA, RES_TO_U32_HIGH(sa)); - out_le32(mbase + PECFG_BAR0LMPA, RES_TO_U32_LOW(sa)); + /* Disable BAR1 & BAR2 */ + out_le32(mbase + PECFG_BAR1MPA, 0); + out_le32(mbase + PECFG_BAR2HMPA, 0); + out_le32(mbase + PECFG_BAR2LMPA, 0); - /* The setup of the split looks weird to me ... let's see if it works */ - out_le32(mbase + PECFG_PIM0LAL, 0x00000000); - out_le32(mbase + PECFG_PIM0LAH, 0x00000000); - out_le32(mbase + PECFG_PIM1LAL, 0x00000000); - out_le32(mbase + PECFG_PIM1LAH, 0x00000000); - out_le32(mbase + PECFG_PIM01SAH, 0xffff0000); - out_le32(mbase + PECFG_PIM01SAL, 0x00000000); + out_le32(mbase + PECFG_PIM01SAH, RES_TO_U32_HIGH(sa)); + out_le32(mbase + PECFG_PIM01SAL, RES_TO_U32_LOW(sa)); + + out_le32(mbase + PCI_BASE_ADDRESS_0, RES_TO_U32_LOW(ep_addr)); + out_le32(mbase + PCI_BASE_ADDRESS_1, RES_TO_U32_HIGH(ep_addr)); + } else { + /* Calculate window size */ + sa = (0xffffffffffffffffull << ilog2(size));; + if (res->flags & IORESOURCE_PREFETCH) + sa |= 0x8; + + out_le32(mbase + PECFG_BAR0HMPA, RES_TO_U32_HIGH(sa)); + out_le32(mbase + PECFG_BAR0LMPA, RES_TO_U32_LOW(sa)); + + /* The setup of the split looks weird to me ... let's see + * if it works + */ + out_le32(mbase + PECFG_PIM0LAL, 0x00000000); + out_le32(mbase + PECFG_PIM0LAH, 0x00000000); + out_le32(mbase + PECFG_PIM1LAL, 0x00000000); + out_le32(mbase + PECFG_PIM1LAH, 0x00000000); + out_le32(mbase + PECFG_PIM01SAH, 0xffff0000); + out_le32(mbase + PECFG_PIM01SAL, 0x00000000); + + out_le32(mbase + PCI_BASE_ADDRESS_0, RES_TO_U32_LOW(res->start)); + out_le32(mbase + PCI_BASE_ADDRESS_1, RES_TO_U32_HIGH(res->start)); + } /* Enable inbound mapping */ out_le32(mbase + PECFG_PIMEN, 0x1); - out_le32(mbase + PCI_BASE_ADDRESS_0, RES_TO_U32_LOW(res->start)); - out_le32(mbase + PCI_BASE_ADDRESS_1, RES_TO_U32_HIGH(res->start)); - /* Enable I/O, Mem, and Busmaster cycles */ out_le16(mbase + PCI_COMMAND, in_le16(mbase + PCI_COMMAND) | @@ -1422,13 +1453,8 @@ static void __init ppc4xx_pciex_port_setup_hose(struct ppc4xx_pciex_port *port) const int *bus_range; int primary = 0, busses; void __iomem *mbase = NULL, *cfg_data = NULL; - - /* XXX FIXME: Handle endpoint mode properly */ - if (port->endpoint) { - printk(KERN_WARNING "PCIE%d: Port in endpoint mode !\n", - port->index); - return; - } + const u32 *pval; + u32 val; /* Check if primary bridge */ if (of_get_property(port->node, "primary", NULL)) @@ -1462,21 +1488,30 @@ static void __init ppc4xx_pciex_port_setup_hose(struct ppc4xx_pciex_port *port) hose->last_busno = hose->first_busno + busses; } - /* We map the external config space in cfg_data and the host config - * space in cfg_addr. External space is 1M per bus, internal space - * is 4K + if (!port->endpoint) { + /* Only map the external config space in cfg_data for + * PCIe root-complexes. External space is 1M per bus + */ + cfg_data = ioremap(port->cfg_space.start + + (hose->first_busno + 1) * 0x100000, + busses * 0x100000); + if (cfg_data == NULL) { + printk(KERN_ERR "%s: Can't map external config space !", + port->node->full_name); + goto fail; + } + hose->cfg_data = cfg_data; + } + + /* Always map the host config space in cfg_addr. + * Internal space is 4K */ - cfg_data = ioremap(port->cfg_space.start + - (hose->first_busno + 1) * 0x100000, - busses * 0x100000); mbase = ioremap(port->cfg_space.start + 0x10000000, 0x1000); - if (cfg_data == NULL || mbase == NULL) { - printk(KERN_ERR "%s: Can't map config space !", + if (mbase == NULL) { + printk(KERN_ERR "%s: Can't map internal config space !", port->node->full_name); goto fail; } - - hose->cfg_data = cfg_data; hose->cfg_addr = mbase; pr_debug("PCIE %s, bus %d..%d\n", port->node->full_name, @@ -1489,12 +1524,14 @@ static void __init ppc4xx_pciex_port_setup_hose(struct ppc4xx_pciex_port *port) port->hose = hose; mbase = (void __iomem *)hose->cfg_addr; - /* - * Set bus numbers on our root port - */ - out_8(mbase + PCI_PRIMARY_BUS, hose->first_busno); - out_8(mbase + PCI_SECONDARY_BUS, hose->first_busno + 1); - out_8(mbase + PCI_SUBORDINATE_BUS, hose->last_busno); + if (!port->endpoint) { + /* + * Set bus numbers on our root port + */ + out_8(mbase + PCI_PRIMARY_BUS, hose->first_busno); + out_8(mbase + PCI_SECONDARY_BUS, hose->first_busno + 1); + out_8(mbase + PCI_SUBORDINATE_BUS, hose->last_busno); + } /* * OMRs are already reset, also disable PIMs @@ -1515,17 +1552,49 @@ static void __init ppc4xx_pciex_port_setup_hose(struct ppc4xx_pciex_port *port) ppc4xx_configure_pciex_PIMs(port, hose, mbase, &dma_window); /* The root complex doesn't show up if we don't set some vendor - * and device IDs into it. Those are the same bogus one that the - * initial code in arch/ppc add. We might want to change that. + * and device IDs into it. The defaults below are the same bogus + * one that the initial code in arch/ppc had. This can be + * overwritten by setting the "vendor-id/device-id" properties + * in the pciex node. */ - out_le16(mbase + 0x200, 0xaaa0 + port->index); - out_le16(mbase + 0x202, 0xbed0 + port->index); - /* Set Class Code to PCI-PCI bridge and Revision Id to 1 */ - out_le32(mbase + 0x208, 0x06040001); + /* Get the (optional) vendor-/device-id from the device-tree */ + pval = of_get_property(port->node, "vendor-id", NULL); + if (pval) { + val = *pval; + } else { + if (!port->endpoint) + val = 0xaaa0 + port->index; + else + val = 0xeee0 + port->index; + } + out_le16(mbase + 0x200, val); + + pval = of_get_property(port->node, "device-id", NULL); + if (pval) { + val = *pval; + } else { + if (!port->endpoint) + val = 0xbed0 + port->index; + else + val = 0xfed0 + port->index; + } + out_le16(mbase + 0x202, val); + + if (!port->endpoint) { + /* Set Class Code to PCI-PCI bridge and Revision Id to 1 */ + out_le32(mbase + 0x208, 0x06040001); + + printk(KERN_INFO "PCIE%d: successfully set as root-complex\n", + port->index); + } else { + /* Set Class Code to Processor/PPC */ + out_le32(mbase + 0x208, 0x0b200001); + + printk(KERN_INFO "PCIE%d: successfully set as endpoint\n", + port->index); + } - printk(KERN_INFO "PCIE%d: successfully set as root-complex\n", - port->index); return; fail: if (hose) @@ -1542,6 +1611,7 @@ static void __init ppc4xx_probe_pciex_bridge(struct device_node *np) const u32 *pval; int portno; unsigned int dcrs; + const char *val; /* First, proceed to core initialization as we assume there's * only one PCIe core in the system @@ -1573,8 +1643,20 @@ static void __init ppc4xx_probe_pciex_bridge(struct device_node *np) } port->sdr_base = *pval; - /* XXX Currently, we only support root complex mode */ - port->endpoint = 0; + /* Check if device_type property is set to "pci" or "pci-endpoint". + * Resulting from this setup this PCIe port will be configured + * as root-complex or as endpoint. + */ + val = of_get_property(port->node, "device_type", NULL); + if (!strcmp(val, "pci-endpoint")) { + port->endpoint = 1; + } else if (!strcmp(val, "pci")) { + port->endpoint = 0; + } else { + printk(KERN_ERR "PCIE: missing or incorrect device_type for %s\n", + np->full_name); + return; + } /* Fetch config space registers address */ if (of_address_to_resource(np, 0, &port->cfg_space)) { |