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/*
 * EHV_PIC private definitions and structure.
 *
 * Copyright 2008-2010 Freescale Semiconductor, Inc.
 *
 * This file is licensed under the terms of the GNU General Public License
 * version 2.  This program is licensed "as is" without any warranty of any
 * kind, whether express or implied.
 */
#ifndef __EHV_PIC_H__
#define __EHV_PIC_H__

#include <linux/irq.h>

#define NR_EHV_PIC_INTS 1024

#define EHV_PIC_INFO(name) EHV_PIC_##name

#define EHV_PIC_VECPRI_POLARITY_NEGATIVE 0
#define EHV_PIC_VECPRI_POLARITY_POSITIVE 1
#define EHV_PIC_VECPRI_SENSE_EDGE 0
#define EHV_PIC_VECPRI_SENSE_LEVEL 0x2
#define EHV_PIC_VECPRI_POLARITY_MASK 0x1
#define EHV_PIC_VECPRI_SENSE_MASK 0x2

struct ehv_pic {
	/* The remapper for this EHV_PIC */
	struct irq_domain	*irqhost;

	/* The "linux" controller struct */
	struct irq_chip	hc_irq;

	/* core int flag */
	int coreint_flag;
};

void ehv_pic_init(void);
unsigned int ehv_pic_get_irq(void);

#endif /* __EHV_PIC_H__ */
(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 (C) IBM Corporation, 2002, 2004 * * 2002-Oct Created by Vamsi Krishna S <vamsi_krishna@in.ibm.com> Kernel * Probes initial implementation ( includes suggestions from * Rusty Russell). * 2004-Nov Modified for PPC64 by Ananth N Mavinakayanahalli * <ananth@in.ibm.com> */ #include <linux/types.h> #include <linux/ptrace.h> #include <linux/percpu.h> #include <asm/probes.h> #include <asm/code-patching.h> #define __ARCH_WANT_KPROBES_INSN_SLOT struct pt_regs; struct kprobe; typedef ppc_opcode_t kprobe_opcode_t; #define MAX_INSN_SIZE 1 #ifdef CONFIG_PPC64 #if defined(_CALL_ELF) && _CALL_ELF == 2 /* PPC64 ABIv2 needs local entry point */ #define kprobe_lookup_name(name, addr) \ { \ addr = (kprobe_opcode_t *)kallsyms_lookup_name(name); \ if (addr) \ addr = (kprobe_opcode_t *)ppc_function_entry(addr); \ } #else /* * 64bit powerpc ABIv1 uses function descriptors: * - Check for the dot variant of the symbol first. * - If that fails, try looking up the symbol provided. * * This ensures we always get to the actual symbol and not the descriptor. * Also handle <module:symbol> format. */ #define kprobe_lookup_name(name, addr) \ { \ char dot_name[MODULE_NAME_LEN + 1 + KSYM_NAME_LEN]; \ char *modsym; \ bool dot_appended = false; \ if ((modsym = strchr(name, ':')) != NULL) { \ modsym++; \ if (*modsym != '\0' && *modsym != '.') { \ /* Convert to <module:.symbol> */ \ strncpy(dot_name, name, modsym - name); \ dot_name[modsym - name] = '.'; \ dot_name[modsym - name + 1] = '\0'; \ strncat(dot_name, modsym, \ sizeof(dot_name) - (modsym - name) - 2);\ dot_appended = true; \ } else { \ dot_name[0] = '\0'; \ strncat(dot_name, name, sizeof(dot_name) - 1); \ } \ } else if (name[0] != '.') { \ dot_name[0] = '.'; \ dot_name[1] = '\0'; \ strncat(dot_name, name, KSYM_NAME_LEN - 2); \ dot_appended = true; \ } else { \ dot_name[0] = '\0'; \ strncat(dot_name, name, KSYM_NAME_LEN - 1); \ } \ addr = (kprobe_opcode_t *)kallsyms_lookup_name(dot_name); \ if (!addr && dot_appended) { \ /* Let's try the original non-dot symbol lookup */ \ addr = (kprobe_opcode_t *)kallsyms_lookup_name(name); \ } \ } #endif /* defined(_CALL_ELF) && _CALL_ELF == 2 */ #endif /* CONFIG_PPC64 */ #define flush_insn_slot(p) do { } while (0) #define kretprobe_blacklist_size 0 void kretprobe_trampoline(void); extern void arch_remove_kprobe(struct kprobe *p); /* Architecture specific copy of original instruction */ struct arch_specific_insn { /* copy of original instruction */ kprobe_opcode_t *insn; /* * Set in kprobes code, initially to 0. If the instruction can be * eumulated, this is set to 1, if not, to -1. */ int boostable; }; struct prev_kprobe { struct kprobe *kp; unsigned long status; unsigned long saved_msr; }; /* per-cpu kprobe control block */ struct kprobe_ctlblk { unsigned long kprobe_status; unsigned long kprobe_saved_msr; struct pt_regs jprobe_saved_regs; struct prev_kprobe prev_kprobe; }; extern int kprobe_exceptions_notify(struct notifier_block *self, unsigned long val, void *data); extern int kprobe_fault_handler(struct pt_regs *regs, int trapnr); #endif /* __KERNEL__ */ #endif /* _ASM_POWERPC_KPROBES_H */