diff options
Diffstat (limited to 'arch/powerpc/include')
| -rw-r--r-- | arch/powerpc/include/asm/abs_addr.h | 56 | ||||
| -rw-r--r-- | arch/powerpc/include/asm/debug.h | 2 | ||||
| -rw-r--r-- | arch/powerpc/include/asm/eeh.h | 136 | ||||
| -rw-r--r-- | arch/powerpc/include/asm/eeh_event.h | 6 | ||||
| -rw-r--r-- | arch/powerpc/include/asm/exception-64e.h | 6 | ||||
| -rw-r--r-- | arch/powerpc/include/asm/hvcall.h | 5 | ||||
| -rw-r--r-- | arch/powerpc/include/asm/hw_breakpoint.h | 9 | ||||
| -rw-r--r-- | arch/powerpc/include/asm/kprobes.h | 15 | ||||
| -rw-r--r-- | arch/powerpc/include/asm/kvm_book3s_asm.h | 1 | ||||
| -rw-r--r-- | arch/powerpc/include/asm/machdep.h | 3 | ||||
| -rw-r--r-- | arch/powerpc/include/asm/paca.h | 1 | ||||
| -rw-r--r-- | arch/powerpc/include/asm/pci-bridge.h | 2 | ||||
| -rw-r--r-- | arch/powerpc/include/asm/ppc-pci.h | 20 | ||||
| -rw-r--r-- | arch/powerpc/include/asm/probes.h | 42 | ||||
| -rw-r--r-- | arch/powerpc/include/asm/processor.h | 2 | ||||
| -rw-r--r-- | arch/powerpc/include/asm/reg.h | 49 | ||||
| -rw-r--r-- | arch/powerpc/include/asm/setup.h | 2 | ||||
| -rw-r--r-- | arch/powerpc/include/asm/thread_info.h | 4 | ||||
| -rw-r--r-- | arch/powerpc/include/asm/uprobes.h | 54 |
19 files changed, 256 insertions, 159 deletions
diff --git a/arch/powerpc/include/asm/abs_addr.h b/arch/powerpc/include/asm/abs_addr.h deleted file mode 100644 index 9d92ba04b033..000000000000 --- a/arch/powerpc/include/asm/abs_addr.h +++ /dev/null @@ -1,56 +0,0 @@ -#ifndef _ASM_POWERPC_ABS_ADDR_H -#define _ASM_POWERPC_ABS_ADDR_H -#ifdef __KERNEL__ - - -/* - * c 2001 PPC 64 Team, IBM Corp - * - * 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/memblock.h> - -#include <asm/types.h> -#include <asm/page.h> -#include <asm/prom.h> - -struct mschunks_map { - unsigned long num_chunks; - unsigned long chunk_size; - unsigned long chunk_shift; - unsigned long chunk_mask; - u32 *mapping; -}; - -extern struct mschunks_map mschunks_map; - -/* Chunks are 256 KB */ -#define MSCHUNKS_CHUNK_SHIFT (18) -#define MSCHUNKS_CHUNK_SIZE (1UL << MSCHUNKS_CHUNK_SHIFT) -#define MSCHUNKS_OFFSET_MASK (MSCHUNKS_CHUNK_SIZE - 1) - -static inline unsigned long chunk_to_addr(unsigned long chunk) -{ - return chunk << MSCHUNKS_CHUNK_SHIFT; -} - -static inline unsigned long addr_to_chunk(unsigned long addr) -{ - return addr >> MSCHUNKS_CHUNK_SHIFT; -} - -static inline unsigned long phys_to_abs(unsigned long pa) -{ - return pa; -} - -/* Convenience macros */ -#define virt_to_abs(va) phys_to_abs(__pa(va)) -#define abs_to_virt(aa) __va(aa) - -#endif /* __KERNEL__ */ -#endif /* _ASM_POWERPC_ABS_ADDR_H */ diff --git a/arch/powerpc/include/asm/debug.h b/arch/powerpc/include/asm/debug.h index 716d2f089eb6..32de2577bb6d 100644 --- a/arch/powerpc/include/asm/debug.h +++ b/arch/powerpc/include/asm/debug.h @@ -44,7 +44,7 @@ static inline int debugger_dabr_match(struct pt_regs *regs) { return 0; } static inline int debugger_fault_handler(struct pt_regs *regs) { return 0; } #endif -extern int set_dabr(unsigned long dabr); +extern int set_dabr(unsigned long dabr, unsigned long dabrx); #ifdef CONFIG_PPC_ADV_DEBUG_REGS extern void do_send_trap(struct pt_regs *regs, unsigned long address, unsigned long error_code, int signal_code, int brkpt); diff --git a/arch/powerpc/include/asm/eeh.h b/arch/powerpc/include/asm/eeh.h index d60f99814ffb..58c5ee61e700 100644 --- a/arch/powerpc/include/asm/eeh.h +++ b/arch/powerpc/include/asm/eeh.h @@ -32,27 +32,61 @@ struct device_node; #ifdef CONFIG_EEH /* + * The struct is used to trace PE related EEH functionality. + * In theory, there will have one instance of the struct to + * be created against particular PE. In nature, PEs corelate + * to each other. the struct has to reflect that hierarchy in + * order to easily pick up those affected PEs when one particular + * PE has EEH errors. + * + * Also, one particular PE might be composed of PCI device, PCI + * bus and its subordinate components. The struct also need ship + * the information. Further more, one particular PE is only meaingful + * in the corresponding PHB. Therefore, the root PEs should be created + * against existing PHBs in on-to-one fashion. + */ +#define EEH_PE_PHB 1 /* PHB PE */ +#define EEH_PE_DEVICE 2 /* Device PE */ +#define EEH_PE_BUS 3 /* Bus PE */ + +#define EEH_PE_ISOLATED (1 << 0) /* Isolated PE */ +#define EEH_PE_RECOVERING (1 << 1) /* Recovering PE */ + +struct eeh_pe { + int type; /* PE type: PHB/Bus/Device */ + int state; /* PE EEH dependent mode */ + int config_addr; /* Traditional PCI address */ + int addr; /* PE configuration address */ + struct pci_controller *phb; /* Associated PHB */ + int check_count; /* Times of ignored error */ + int freeze_count; /* Times of froze up */ + int false_positives; /* Times of reported #ff's */ + struct eeh_pe *parent; /* Parent PE */ + struct list_head child_list; /* Link PE to the child list */ + struct list_head edevs; /* Link list of EEH devices */ + struct list_head child; /* Child PEs */ +}; + +#define eeh_pe_for_each_dev(pe, edev) \ + list_for_each_entry(edev, &pe->edevs, list) + +/* * The struct is used to trace EEH state for the associated * PCI device node or PCI device. In future, it might * represent PE as well so that the EEH device to form * another tree except the currently existing tree of PCI * buses and PCI devices */ -#define EEH_MODE_SUPPORTED (1<<0) /* EEH supported on the device */ -#define EEH_MODE_NOCHECK (1<<1) /* EEH check should be skipped */ -#define EEH_MODE_ISOLATED (1<<2) /* The device has been isolated */ -#define EEH_MODE_RECOVERING (1<<3) /* Recovering the device */ -#define EEH_MODE_IRQ_DISABLED (1<<4) /* Interrupt disabled */ +#define EEH_DEV_IRQ_DISABLED (1<<0) /* Interrupt disabled */ struct eeh_dev { int mode; /* EEH mode */ int class_code; /* Class code of the device */ int config_addr; /* Config address */ int pe_config_addr; /* PE config address */ - int check_count; /* Times of ignored error */ - int freeze_count; /* Times of froze up */ - int false_positives; /* Times of reported #ff's */ u32 config_space[16]; /* Saved PCI config space */ + struct eeh_pe *pe; /* Associated PE */ + struct list_head list; /* Form link list in the PE */ struct pci_controller *phb; /* Associated PHB */ struct device_node *dn; /* Associated device node */ struct pci_dev *pdev; /* Associated PCI device */ @@ -95,19 +129,51 @@ static inline struct pci_dev *eeh_dev_to_pci_dev(struct eeh_dev *edev) struct eeh_ops { char *name; int (*init)(void); - int (*set_option)(struct device_node *dn, int option); - int (*get_pe_addr)(struct device_node *dn); - int (*get_state)(struct device_node *dn, int *state); - int (*reset)(struct device_node *dn, int option); - int (*wait_state)(struct device_node *dn, int max_wait); - int (*get_log)(struct device_node *dn, int severity, char *drv_log, unsigned long len); - int (*configure_bridge)(struct device_node *dn); + void* (*of_probe)(struct device_node *dn, void *flag); + void* (*dev_probe)(struct pci_dev *dev, void *flag); + int (*set_option)(struct eeh_pe *pe, int option); + int (*get_pe_addr)(struct eeh_pe *pe); + int (*get_state)(struct eeh_pe *pe, int *state); + int (*reset)(struct eeh_pe *pe, int option); + int (*wait_state)(struct eeh_pe *pe, int max_wait); + int (*get_log)(struct eeh_pe *pe, int severity, char *drv_log, unsigned long len); + int (*configure_bridge)(struct eeh_pe *pe); int (*read_config)(struct device_node *dn, int where, int size, u32 *val); int (*write_config)(struct device_node *dn, int where, int size, u32 val); }; extern struct eeh_ops *eeh_ops; extern int eeh_subsystem_enabled; +extern struct mutex eeh_mutex; +extern int eeh_probe_mode; + +#define EEH_PROBE_MODE_DEV (1<<0) /* From PCI device */ +#define EEH_PROBE_MODE_DEVTREE (1<<1) /* From device tree */ + +static inline void eeh_probe_mode_set(int flag) +{ + eeh_probe_mode = flag; +} + +static inline int eeh_probe_mode_devtree(void) +{ + return (eeh_probe_mode == EEH_PROBE_MODE_DEVTREE); +} + +static inline int eeh_probe_mode_dev(void) +{ + return (eeh_probe_mode == EEH_PROBE_MODE_DEV); +} + +static inline void eeh_lock(void) +{ + mutex_lock(&eeh_mutex); +} + +static inline void eeh_unlock(void) +{ + mutex_unlock(&eeh_mutex); +} /* * Max number of EEH freezes allowed before we consider the device @@ -115,19 +181,23 @@ extern int eeh_subsystem_enabled; */ #define EEH_MAX_ALLOWED_FREEZES 5 +typedef void *(*eeh_traverse_func)(void *data, void *flag); +int __devinit eeh_phb_pe_create(struct pci_controller *phb); +int eeh_add_to_parent_pe(struct eeh_dev *edev); +int eeh_rmv_from_parent_pe(struct eeh_dev *edev); +void *eeh_pe_dev_traverse(struct eeh_pe *root, + eeh_traverse_func fn, void *flag); +void eeh_pe_restore_bars(struct eeh_pe *pe); +struct pci_bus *eeh_pe_bus_get(struct eeh_pe *pe); + void * __devinit eeh_dev_init(struct device_node *dn, void *data); void __devinit eeh_dev_phb_init_dynamic(struct pci_controller *phb); -void __init eeh_dev_phb_init(void); -void __init eeh_init(void); -#ifdef CONFIG_PPC_PSERIES -int __init eeh_pseries_init(void); -#endif int __init eeh_ops_register(struct eeh_ops *ops); int __exit eeh_ops_unregister(const char *name); unsigned long eeh_check_failure(const volatile void __iomem *token, unsigned long val); -int eeh_dn_check_failure(struct device_node *dn, struct pci_dev *dev); -void __init pci_addr_cache_build(void); +int eeh_dev_check_failure(struct eeh_dev *edev); +void __init eeh_addr_cache_build(void); void eeh_add_device_tree_early(struct device_node *); void eeh_add_device_tree_late(struct pci_bus *); void eeh_remove_bus_device(struct pci_dev *); @@ -156,34 +226,24 @@ static inline void *eeh_dev_init(struct device_node *dn, void *data) static inline void eeh_dev_phb_init_dynamic(struct pci_controller *phb) { } -static inline void eeh_dev_phb_init(void) { } - -static inline void eeh_init(void) { } - -#ifdef CONFIG_PPC_PSERIES -static inline int eeh_pseries_init(void) -{ - return 0; -} -#endif /* CONFIG_PPC_PSERIES */ - static inline unsigned long eeh_check_failure(const volatile void __iomem *token, unsigned long val) { return val; } -static inline int eeh_dn_check_failure(struct device_node *dn, struct pci_dev *dev) -{ - return 0; -} +#define eeh_dev_check_failure(x) (0) -static inline void pci_addr_cache_build(void) { } +static inline void eeh_addr_cache_build(void) { } static inline void eeh_add_device_tree_early(struct device_node *dn) { } static inline void eeh_add_device_tree_late(struct pci_bus *bus) { } static inline void eeh_remove_bus_device(struct pci_dev *dev) { } + +static inline void eeh_lock(void) { } +static inline void eeh_unlock(void) { } + #define EEH_POSSIBLE_ERROR(val, type) (0) #define EEH_IO_ERROR_VALUE(size) (-1UL) #endif /* CONFIG_EEH */ diff --git a/arch/powerpc/include/asm/eeh_event.h b/arch/powerpc/include/asm/eeh_event.h index c68b012b7797..de67d830151b 100644 --- a/arch/powerpc/include/asm/eeh_event.h +++ b/arch/powerpc/include/asm/eeh_event.h @@ -28,11 +28,11 @@ */ struct eeh_event { struct list_head list; /* to form event queue */ - struct eeh_dev *edev; /* EEH device */ + struct eeh_pe *pe; /* EEH PE */ }; -int eeh_send_failure_event(struct eeh_dev *edev); -struct eeh_dev *handle_eeh_events(struct eeh_event *); +int eeh_send_failure_event(struct eeh_pe *pe); +void eeh_handle_event(struct eeh_pe *pe); #endif /* __KERNEL__ */ #endif /* ASM_POWERPC_EEH_EVENT_H */ diff --git a/arch/powerpc/include/asm/exception-64e.h b/arch/powerpc/include/asm/exception-64e.h index ac13addb8495..51fa43e536b9 100644 --- a/arch/powerpc/include/asm/exception-64e.h +++ b/arch/powerpc/include/asm/exception-64e.h @@ -37,6 +37,7 @@ * critical data */ +#define PACA_EXGDBELL PACA_EXGEN /* We are out of SPRGs so we save some things in the PACA. The normal * exception frame is smaller than the CRIT or MC one though @@ -45,8 +46,9 @@ #define EX_CR (1 * 8) #define EX_R10 (2 * 8) #define EX_R11 (3 * 8) -#define EX_R14 (4 * 8) -#define EX_R15 (5 * 8) +#define EX_R13 (4 * 8) +#define EX_R14 (5 * 8) +#define EX_R15 (6 * 8) /* * The TLB miss exception uses different slots. diff --git a/arch/powerpc/include/asm/hvcall.h b/arch/powerpc/include/asm/hvcall.h index 423cf9eaf4a4..7a867065db79 100644 --- a/arch/powerpc/include/asm/hvcall.h +++ b/arch/powerpc/include/asm/hvcall.h @@ -152,11 +152,6 @@ #define H_VASI_RESUMED 5 #define H_VASI_COMPLETED 6 -/* DABRX flags */ -#define H_DABRX_HYPERVISOR (1UL<<(63-61)) -#define H_DABRX_KERNEL (1UL<<(63-62)) -#define H_DABRX_USER (1UL<<(63-63)) - /* Each control block has to be on a 4K boundary */ #define H_CB_ALIGNMENT 4096 diff --git a/arch/powerpc/include/asm/hw_breakpoint.h b/arch/powerpc/include/asm/hw_breakpoint.h index be04330af751..423424599dad 100644 --- a/arch/powerpc/include/asm/hw_breakpoint.h +++ b/arch/powerpc/include/asm/hw_breakpoint.h @@ -27,10 +27,11 @@ #ifdef CONFIG_HAVE_HW_BREAKPOINT struct arch_hw_breakpoint { - bool extraneous_interrupt; - u8 len; /* length of the target data symbol */ - int type; unsigned long address; + unsigned long dabrx; + int type; + u8 len; /* length of the target data symbol */ + bool extraneous_interrupt; }; #include <linux/kdebug.h> @@ -61,7 +62,7 @@ extern void ptrace_triggered(struct perf_event *bp, struct perf_sample_data *data, struct pt_regs *regs); static inline void hw_breakpoint_disable(void) { - set_dabr(0); + set_dabr(0, 0); } extern void thread_change_pc(struct task_struct *tsk, struct pt_regs *regs); diff --git a/arch/powerpc/include/asm/kprobes.h b/arch/powerpc/include/asm/kprobes.h index be0171afdc0f..7b6feab6fd26 100644 --- a/arch/powerpc/include/asm/kprobes.h +++ b/arch/powerpc/include/asm/kprobes.h @@ -29,21 +29,16 @@ #include <linux/types.h> #include <linux/ptrace.h> #include <linux/percpu.h> +#include <asm/probes.h> #define __ARCH_WANT_KPROBES_INSN_SLOT struct pt_regs; struct kprobe; -typedef unsigned int kprobe_opcode_t; -#define BREAKPOINT_INSTRUCTION 0x7fe00008 /* trap */ +typedef ppc_opcode_t kprobe_opcode_t; #define MAX_INSN_SIZE 1 -#define IS_TW(instr) (((instr) & 0xfc0007fe) == 0x7c000008) -#define IS_TD(instr) (((instr) & 0xfc0007fe) == 0x7c000088) -#define IS_TDI(instr) (((instr) & 0xfc000000) == 0x08000000) -#define IS_TWI(instr) (((instr) & 0xfc000000) == 0x0c000000) - #ifdef CONFIG_PPC64 /* * 64bit powerpc uses function descriptors. @@ -72,12 +67,6 @@ typedef unsigned int kprobe_opcode_t; addr = (kprobe_opcode_t *)kallsyms_lookup_name(dot_name); \ } \ } - -#define is_trap(instr) (IS_TW(instr) || IS_TD(instr) || \ - IS_TWI(instr) || IS_TDI(instr)) -#else -/* Use stock kprobe_lookup_name since ppc32 doesn't use function descriptors */ -#define is_trap(instr) (IS_TW(instr) || IS_TWI(instr)) #endif #define flush_insn_slot(p) do { } while (0) diff --git a/arch/powerpc/include/asm/kvm_book3s_asm.h b/arch/powerpc/include/asm/kvm_book3s_asm.h index bfcd00c1485d..88609b23b775 100644 --- a/arch/powerpc/include/asm/kvm_book3s_asm.h +++ b/arch/powerpc/include/asm/kvm_book3s_asm.h @@ -74,7 +74,6 @@ struct kvmppc_host_state { ulong vmhandler; ulong scratch0; ulong scratch1; - ulong sprg3; u8 in_guest; u8 restore_hid5; u8 napping; diff --git a/arch/powerpc/include/asm/machdep.h b/arch/powerpc/include/asm/machdep.h index f7706d722b39..8111e1b78f7f 100644 --- a/arch/powerpc/include/asm/machdep.h +++ b/arch/powerpc/include/asm/machdep.h @@ -180,7 +180,8 @@ struct machdep_calls { void (*enable_pmcs)(void); /* Set DABR for this platform, leave empty for default implemenation */ - int (*set_dabr)(unsigned long dabr); + int (*set_dabr)(unsigned long dabr, + unsigned long dabrx); #ifdef CONFIG_PPC32 /* XXX for now */ /* A general init function, called by ppc_init in init/main.c. diff --git a/arch/powerpc/include/asm/paca.h b/arch/powerpc/include/asm/paca.h index daf813fea91f..7796519fd238 100644 --- a/arch/powerpc/include/asm/paca.h +++ b/arch/powerpc/include/asm/paca.h @@ -136,6 +136,7 @@ struct paca_struct { u8 io_sync; /* writel() needs spin_unlock sync */ u8 irq_work_pending; /* IRQ_WORK interrupt while soft-disable */ u8 nap_state_lost; /* NV GPR values lost in power7_idle */ + u64 sprg3; /* Saved user-visible sprg */ #ifdef CONFIG_PPC_POWERNV /* Pointer to OPAL machine check event structure set by the diff --git a/arch/powerpc/include/asm/pci-bridge.h b/arch/powerpc/include/asm/pci-bridge.h index 8cccbee61519..973df4d9d366 100644 --- a/arch/powerpc/include/asm/pci-bridge.h +++ b/arch/powerpc/include/asm/pci-bridge.h @@ -184,6 +184,8 @@ static inline struct eeh_dev *of_node_to_eeh_dev(struct device_node *dn) { return PCI_DN(dn)->edev; } +#else +#define of_node_to_eeh_dev(x) (NULL) #endif /** Find the bus corresponding to the indicated device node */ diff --git a/arch/powerpc/include/asm/ppc-pci.h b/arch/powerpc/include/asm/ppc-pci.h index 80fa704d410f..ed57fa7920c8 100644 --- a/arch/powerpc/include/asm/ppc-pci.h +++ b/arch/powerpc/include/asm/ppc-pci.h @@ -47,19 +47,17 @@ extern int rtas_setup_phb(struct pci_controller *phb); #ifdef CONFIG_EEH -void pci_addr_cache_build(void); -void pci_addr_cache_insert_device(struct pci_dev *dev); -void pci_addr_cache_remove_device(struct pci_dev *dev); -struct pci_dev *pci_addr_cache_get_device(unsigned long addr); -void eeh_slot_error_detail(struct eeh_dev *edev, int severity); -int eeh_pci_enable(struct eeh_dev *edev, int function); -int eeh_reset_pe(struct eeh_dev *); -void eeh_restore_bars(struct eeh_dev *); +void eeh_addr_cache_insert_dev(struct pci_dev *dev); +void eeh_addr_cache_rmv_dev(struct pci_dev *dev); +struct eeh_dev *eeh_addr_cache_get_dev(unsigned long addr); +void eeh_slot_error_detail(struct eeh_pe *pe, int severity); +int eeh_pci_enable(struct eeh_pe *pe, int function); +int eeh_reset_pe(struct eeh_pe *); +void eeh_save_bars(struct eeh_dev *edev); int rtas_write_config(struct pci_dn *, int where, int size, u32 val); int rtas_read_config(struct pci_dn *, int where, int size, u32 *val); -void eeh_mark_slot(struct device_node *dn, int mode_flag); -void eeh_clear_slot(struct device_node *dn, int mode_flag); -struct device_node *eeh_find_device_pe(struct device_node *dn); +void eeh_pe_state_mark(struct eeh_pe *pe, int state); +void eeh_pe_state_clear(struct eeh_pe *pe, int state); void eeh_sysfs_add_device(struct pci_dev *pdev); void eeh_sysfs_remove_device(struct pci_dev *pdev); diff --git a/arch/powerpc/include/asm/probes.h b/arch/powerpc/include/asm/probes.h new file mode 100644 index 000000000000..5f1e15b68704 --- /dev/null +++ b/arch/powerpc/include/asm/probes.h @@ -0,0 +1,42 @@ +#ifndef _ASM_POWERPC_PROBES_H +#define _ASM_POWERPC_PROBES_H +#ifdef __KERNEL__ +/* + * Definitions common to probes files + * + * 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. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. + * + * Copyright IBM Corporation, 2012 + */ +#include <linux/types.h> + +typedef u32 ppc_opcode_t; +#define BREAKPOINT_INSTRUCTION 0x7fe00008 /* trap */ + +/* Trap definitions per ISA */ +#define IS_TW(instr) (((instr) & 0xfc0007fe) == 0x7c000008) +#define IS_TD(instr) (((instr) & 0xfc0007fe) == 0x7c000088) +#define IS_TDI(instr) (((instr) & 0xfc000000) == 0x08000000) +#define IS_TWI(instr) (((instr) & 0xfc000000) == 0x0c000000) + +#ifdef CONFIG_PPC64 +#define is_trap(instr) (IS_TW(instr) || IS_TD(instr) || \ + IS_TWI(instr) || IS_TDI(instr)) +#else +#define is_trap(instr) (IS_TW(instr) || IS_TWI(instr)) +#endif /* CONFIG_PPC64 */ + +#endif /* __KERNEL__ */ +#endif /* _ASM_POWERPC_PROBES_H */ diff --git a/arch/powerpc/include/asm/processor.h b/arch/powerpc/include/asm/processor.h index 54b73a28c205..83efc6e81543 100644 --- a/arch/powerpc/include/asm/processor.h +++ b/arch/powerpc/include/asm/processor.h @@ -219,6 +219,8 @@ struct thread_struct { #endif /* CONFIG_HAVE_HW_BREAKPOINT */ #endif unsigned long dabr; /* Data address breakpoint register */ + unsigned long dabrx; /* ... extension */ + unsigned long trap_nr; /* last trap # on this thread */ #ifdef CONFIG_ALTIVEC /* Complete AltiVec register set */ vector128 vr[32] __attribute__((aligned(16))); diff --git a/arch/powerpc/include/asm/reg.h b/arch/powerpc/include/asm/reg.h index 638608677e2a..121a90bbf778 100644 --- a/arch/powerpc/include/asm/reg.h +++ b/arch/powerpc/include/asm/reg.h @@ -208,6 +208,9 @@ #define SPRN_DABRX 0x3F7 /* Data Address Breakpoint Register Extension */ #define DABRX_USER (1UL << 0) #define DABRX_KERNEL (1UL << 1) +#define DABRX_HYP (1UL << 2) +#define DABRX_BTI (1UL << 3) +#define DABRX_ALL (DABRX_BTI | DABRX_HYP | DABRX_KERNEL | DABRX_USER) #define SPRN_DAR 0x013 /* Data Address Register */ #define SPRN_DBCR 0x136 /* e300 Data Breakpoint Control Reg */ #define SPRN_DSISR 0x012 /* Data Storage Interrupt Status Register */ @@ -761,7 +764,8 @@ * 64-bit embedded * - SPRG0 generic exception scratch * - SPRG2 TLB exception stack - * - SPRG3 CPU and NUMA node for VDSO getcpu (user visible) + * - SPRG3 critical exception scratch and + * CPU and NUMA node for VDSO getcpu (user visible) * - SPRG4 unused (user visible) * - SPRG6 TLB miss scratch (user visible, sorry !) * - SPRG7 critical exception scratch @@ -858,11 +862,12 @@ #ifdef CONFIG_PPC_BOOK3E_64 #define SPRN_SPRG_MC_SCRATCH SPRN_SPRG8 -#define SPRN_SPRG_CRIT_SCRATCH SPRN_SPRG7 +#define SPRN_SPRG_CRIT_SCRATCH SPRN_SPRG3 #define SPRN_SPRG_DBG_SCRATCH SPRN_SPRG9 #define SPRN_SPRG_TLB_EXFRAME SPRN_SPRG2 #define SPRN_SPRG_TLB_SCRATCH SPRN_SPRG6 #define SPRN_SPRG_GEN_SCRATCH SPRN_SPRG0 +#define SPRN_SPRG_GDBELL_SCRATCH SPRN_SPRG_GEN_SCRATCH #define SET_PACA(rX) mtspr SPRN_SPRG_PACA,rX #define GET_PACA(rX) mfspr rX,SPRN_SPRG_PACA @@ -937,7 +942,7 @@ #define PVR_VER(pvr) (((pvr) >> 16) & 0xFFFF) /* Version field */ #define PVR_REV(pvr) (((pvr) >> 0) & 0xFFFF) /* Revison field */ -#define __is_processor(pv) (PVR_VER(mfspr(SPRN_PVR)) == (pv)) +#define pvr_version_is(pvr) (PVR_VER(mfspr(SPRN_PVR)) == (pvr)) /* * IBM has further subdivided the standard PowerPC 16-bit version and @@ -1002,25 +1007,25 @@ #define PVR_476_ISS 0x00052000 /* 64-bit processors */ -/* XXX the prefix should be PVR_, we'll do a global sweep to fix it one day */ -#define PV_NORTHSTAR 0x0033 -#define PV_PULSAR 0x0034 -#define PV_POWER4 0x0035 -#define PV_ICESTAR 0x0036 -#define PV_SSTAR 0x0037 -#define PV_POWER4p 0x0038 -#define PV_970 0x0039 -#define PV_POWER5 0x003A -#define PV_POWER5p 0x003B -#define PV_970FX 0x003C -#define PV_POWER6 0x003E -#define PV_POWER7 0x003F -#define PV_630 0x0040 -#define PV_630p 0x0041 -#define PV_970MP 0x0044 -#define PV_970GX 0x0045 -#define PV_BE 0x0070 -#define PV_PA6T 0x0090 +#define PVR_NORTHSTAR 0x0033 +#define PVR_PULSAR 0x0034 +#define PVR_POWER4 0x0035 +#define PVR_ICESTAR 0x0036 +#define PVR_SSTAR 0x0037 +#define PVR_POWER4p 0x0038 +#define PVR_970 0x0039 +#define PVR_POWER5 0x003A +#define PVR_POWER5p 0x003B +#define PVR_970FX 0x003C +#define PVR_POWER6 0x003E +#define PVR_POWER7 0x003F +#define PVR_630 0x0040 +#define PVR_630p 0x0041 +#define PVR_970MP 0x0044 +#define PVR_970GX 0x0045 +#define PVR_POWER7p 0x004A +#define PVR_BE 0x0070 +#define PVR_PA6T 0x0090 /* Macros for setting and retrieving special purpose registers */ #ifndef __ASSEMBLY__ diff --git a/arch/powerpc/include/asm/setup.h b/arch/powerpc/include/asm/setup.h index d084ce195fc3..8b9a306260b2 100644 --- a/arch/powerpc/include/asm/setup.h +++ b/arch/powerpc/include/asm/setup.h @@ -9,7 +9,7 @@ extern void ppc_printk_progress(char *s, unsigned short hex); extern unsigned int rtas_data; extern int mem_init_done; /* set on boot once kmalloc can be called */ extern int init_bootmem_done; /* set once bootmem is available */ -extern phys_addr_t memory_limit; +extern unsigned long long memory_limit; extern unsigned long klimit; extern void *zalloc_maybe_bootmem(size_t size, gfp_t mask); diff --git a/arch/powerpc/include/asm/thread_info.h b/arch/powerpc/include/asm/thread_info.h index faf93529cbf0..e942203cd4a8 100644 --- a/arch/powerpc/include/asm/thread_info.h +++ b/arch/powerpc/include/asm/thread_info.h @@ -102,6 +102,7 @@ static inline struct thread_info *current_thread_info(void) #define TIF_RESTOREALL 11 /* Restore all regs (implies NOERROR) */ #define TIF_NOERROR 12 /* Force successful syscall return */ #define TIF_NOTIFY_RESUME 13 /* callback before returning to user */ +#define TIF_UPROBE 14 /* breakpointed or single-stepping */ #define TIF_SYSCALL_TRACEPOINT 15 /* syscall tracepoint instrumentation */ /* as above, but as bit values */ @@ -118,12 +119,13 @@ static inline struct thread_info *current_thread_info(void) #define _TIF_RESTOREALL (1<<TIF_RESTOREALL) #define _TIF_NOERROR (1<<TIF_NOERROR) #define _TIF_NOTIFY_RESUME (1<<TIF_NOTIFY_RESUME) +#define _TIF_UPROBE (1<<TIF_UPROBE) #define _TIF_SYSCALL_TRACEPOINT (1<<TIF_SYSCALL_TRACEPOINT) #define _TIF_SYSCALL_T_OR_A (_TIF_SYSCALL_TRACE | _TIF_SYSCALL_AUDIT | \ _TIF_SECCOMP | _TIF_SYSCALL_TRACEPOINT) #define _TIF_USER_WORK_MASK (_TIF_SIGPENDING | _TIF_NEED_RESCHED | \ - _TIF_NOTIFY_RESUME) + _TIF_NOTIFY_RESUME | _TIF_UPROBE) #define _TIF_PERSYSCALL_MASK (_TIF_RESTOREALL|_TIF_NOERROR) /* Bits in local_flags */ diff --git a/arch/powerpc/include/asm/uprobes.h b/arch/powerpc/include/asm/uprobes.h new file mode 100644 index 000000000000..b532060d0916 --- /dev/null +++ b/arch/powerpc/include/asm/uprobes.h @@ -0,0 +1,54 @@ +#ifndef _ASM_UPROBES_H +#define _ASM_UPROBES_H +/* + * User-space Probes (UProbes) for powerpc + * + * 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. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. + * + * Copyright IBM Corporation, 2007-2012 + * + * Adapted from the x86 port by Ananth N Mavinakayanahalli <ananth@in.ibm.com> + */ + +#include <linux/notifier.h> +#include <asm/probes.h> + +typedef ppc_opcode_t uprobe_opcode_t; + +#define MAX_UINSN_BYTES 4 +#define UPROBE_XOL_SLOT_BYTES (MAX_UINSN_BYTES) + +/* The following alias is needed for reference from arch-agnostic code */ +#define UPROBE_SWBP_INSN BREAKPOINT_INSTRUCTION +#define UPROBE_SWBP_INSN_SIZE 4 /* swbp insn size in bytes */ + +struct arch_uprobe { + union { + u8 insn[MAX_UINSN_BYTES]; + u32 ainsn; + }; +}; + +struct arch_uprobe_task { + unsigned long saved_trap_nr; +}; + +extern int arch_uprobe_analyze_insn(struct arch_uprobe *aup, struct mm_struct *mm, unsigned long addr); +extern int arch_uprobe_pre_xol(struct arch_uprobe *aup, struct pt_regs *regs); +extern int arch_uprobe_post_xol(struct arch_uprobe *aup, struct pt_regs *regs); +extern bool arch_uprobe_xol_was_trapped(struct task_struct *tsk); +extern int arch_uprobe_exception_notify(struct notifier_block *self, unsigned long val, void *data); +extern void arch_uprobe_abort_xol(struct arch_uprobe *aup, struct pt_regs *regs); +#endif /* _ASM_UPROBES_H */ |