| lists.openwall.net | lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC | |
|
Open Source and information security mailing list archives
| ||
|
Date: Wed, 18 Mar 2009 21:31:05 +0100
From: monstr@...str.eu
To: linux-kernel@...r.kernel.org
Cc: john.williams@...alogix.com, Michal Simek <monstr@...str.eu>
Subject: [PATCH 38/57] microblaze_v7: headers for irq
From: Michal Simek <monstr@...str.eu>
Signed-off-by: Michal Simek <monstr@...str.eu>
---
arch/microblaze/include/asm/hardirq.h | 29 ++++++++
arch/microblaze/include/asm/irq_regs.h | 1 +
arch/microblaze/include/asm/irqflags.h | 123 ++++++++++++++++++++++++++++++++
3 files changed, 153 insertions(+), 0 deletions(-)
create mode 100644 arch/microblaze/include/asm/hardirq.h
create mode 100644 arch/microblaze/include/asm/hw_irq.h
create mode 100644 arch/microblaze/include/asm/irq_regs.h
create mode 100644 arch/microblaze/include/asm/irqflags.h
diff --git a/arch/microblaze/include/asm/hardirq.h b/arch/microblaze/include/asm/hardirq.h
new file mode 100644
index 0000000..0f2d6b0
--- /dev/null
+++ b/arch/microblaze/include/asm/hardirq.h
@@ -0,0 +1,29 @@
+/*
+ * Copyright (C) 2006 Atmark Techno, Inc.
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ */
+
+#ifndef _ASM_MICROBLAZE_HARDIRQ_H
+#define _ASM_MICROBLAZE_HARDIRQ_H
+
+#include <linux/cache.h>
+#include <linux/irq.h>
+#include <asm/irq.h>
+#include <asm/current.h>
+#include <linux/ptrace.h>
+
+/* should be defined in each interrupt controller driver */
+extern unsigned int get_irq(struct pt_regs *regs);
+
+typedef struct {
+ unsigned int __softirq_pending;
+} ____cacheline_aligned irq_cpustat_t;
+
+void ack_bad_irq(unsigned int irq);
+
+#include <linux/irq_cpustat.h> /* Standard mappings for irq_cpustat_t above */
+
+#endif /* _ASM_MICROBLAZE_HARDIRQ_H */
diff --git a/arch/microblaze/include/asm/hw_irq.h b/arch/microblaze/include/asm/hw_irq.h
new file mode 100644
index 0000000..e69de29
diff --git a/arch/microblaze/include/asm/irq_regs.h b/arch/microblaze/include/asm/irq_regs.h
new file mode 100644
index 0000000..3dd9c0b
--- /dev/null
+++ b/arch/microblaze/include/asm/irq_regs.h
@@ -0,0 +1 @@
+#include <asm-generic/irq_regs.h>
diff --git a/arch/microblaze/include/asm/irqflags.h b/arch/microblaze/include/asm/irqflags.h
new file mode 100644
index 0000000..dea6564
--- /dev/null
+++ b/arch/microblaze/include/asm/irqflags.h
@@ -0,0 +1,123 @@
+/*
+ * Copyright (C) 2006 Atmark Techno, Inc.
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ */
+
+#ifndef _ASM_MICROBLAZE_IRQFLAGS_H
+#define _ASM_MICROBLAZE_IRQFLAGS_H
+
+#include <linux/irqflags.h>
+
+# if CONFIG_XILINX_MICROBLAZE0_USE_MSR_INSTR
+
+# define local_irq_save(flags) \
+ do { \
+ asm volatile ("# local_irq_save \n\t" \
+ "msrclr %0, %1 \n\t" \
+ "nop \n\t" \
+ : "=r"(flags) \
+ : "i"(MSR_IE) \
+ : "memory"); \
+ } while (0)
+
+# define local_irq_disable() \
+ do { \
+ asm volatile ("# local_irq_disable \n\t" \
+ "msrclr r0, %0 \n\t" \
+ "nop \n\t" \
+ : \
+ : "i"(MSR_IE) \
+ : "memory"); \
+ } while (0)
+
+# define local_irq_enable() \
+ do { \
+ asm volatile ("# local_irq_enable \n\t" \
+ "msrset r0, %0 \n\t" \
+ "nop \n\t" \
+ : \
+ : "i"(MSR_IE) \
+ : "memory"); \
+ } while (0)
+
+# else /* CONFIG_XILINX_MICROBLAZE0_USE_MSR_INSTR == 0 */
+
+# define local_irq_save(flags) \
+ do { \
+ register unsigned tmp; \
+ asm volatile ("# local_irq_save \n\t" \
+ "mfs %0, rmsr \n\t" \
+ "nop \n\t" \
+ "andi %1, %0, %2 \n\t" \
+ "mts rmsr, %1 \n\t" \
+ "nop \n\t" \
+ : "=r"(flags), "=r" (tmp) \
+ : "i"(~MSR_IE) \
+ : "memory"); \
+ } while (0)
+
+# define local_irq_disable() \
+ do { \
+ register unsigned tmp; \
+ asm volatile ("# local_irq_disable \n\t" \
+ "mfs %0, rmsr \n\t" \
+ "nop \n\t" \
+ "andi %0, %0, %1 \n\t" \
+ "mts rmsr, %0 \n\t" \
+ "nop \n\t" \
+ : "=r"(tmp) \
+ : "i"(~MSR_IE) \
+ : "memory"); \
+ } while (0)
+
+# define local_irq_enable() \
+ do { \
+ register unsigned tmp; \
+ asm volatile ("# local_irq_enable \n\t" \
+ "mfs %0, rmsr \n\t" \
+ "nop \n\t" \
+ "ori %0, %0, %1 \n\t" \
+ "mts rmsr, %0 \n\t" \
+ "nop \n\t" \
+ : "=r"(tmp) \
+ : "i"(MSR_IE) \
+ : "memory"); \
+ } while (0)
+
+# endif /* CONFIG_XILINX_MICROBLAZE0_USE_MSR_INSTR */
+
+#define local_save_flags(flags) \
+ do { \
+ asm volatile ("# local_save_flags \n\t" \
+ "mfs %0, rmsr \n\t" \
+ "nop \n\t" \
+ : "=r"(flags) \
+ : \
+ : "memory"); \
+ } while (0)
+
+#define local_irq_restore(flags) \
+ do { \
+ asm volatile ("# local_irq_restore \n\t"\
+ "mts rmsr, %0 \n\t" \
+ "nop \n\t" \
+ : \
+ : "r"(flags) \
+ : "memory"); \
+ } while (0)
+
+static inline int irqs_disabled(void)
+{
+ unsigned long flags;
+
+ local_save_flags(flags);
+ return ((flags & MSR_IE) == 0);
+}
+
+#define raw_irqs_disabled irqs_disabled
+#define raw_irqs_disabled_flags(flags) ((flags) == 0)
+
+#endif /* _ASM_MICROBLAZE_IRQFLAGS_H */
--
1.5.5.1
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
Powered by blists - more mailing lists