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authorTony Luck <tony.luck@intel.com>2008-08-01 10:13:32 -0700
committerTony Luck <tony.luck@intel.com>2008-08-01 10:21:21 -0700
commit7f30491ccd28627742e37899453ae20e3da8e18f (patch)
tree7291c0a26ed3a31acf9542857af3981d278f5de8 /arch/ia64/include/asm/paravirt.h
parent94ad374a0751f40d25e22e036c37f7263569d24c (diff)
[IA64] Move include/asm-ia64 to arch/ia64/include/asm
After moving the the include files there were a few clean-ups: 1) Some files used #include <asm-ia64/xyz.h>, changed to <asm/xyz.h> 2) Some comments alerted maintainers to look at various header files to make matching updates if certain code were to be changed. Updated these comments to use the new include paths. 3) Some header files mentioned their own names in initial comments. Just deleted these self references. Signed-off-by: Tony Luck <tony.luck@intel.com>
Diffstat (limited to 'arch/ia64/include/asm/paravirt.h')
-rw-r--r--arch/ia64/include/asm/paravirt.h253
1 files changed, 253 insertions, 0 deletions
diff --git a/arch/ia64/include/asm/paravirt.h b/arch/ia64/include/asm/paravirt.h
new file mode 100644
index 00000000000..660cab04483
--- /dev/null
+++ b/arch/ia64/include/asm/paravirt.h
@@ -0,0 +1,253 @@
+/******************************************************************************
+ * Copyright (c) 2008 Isaku Yamahata <yamahata at valinux co jp>
+ * VA Linux Systems Japan K.K.
+ *
+ * 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
+ *
+ */
+
+
+#ifndef __ASM_PARAVIRT_H
+#define __ASM_PARAVIRT_H
+
+#ifdef CONFIG_PARAVIRT_GUEST
+
+#define PARAVIRT_HYPERVISOR_TYPE_DEFAULT 0
+#define PARAVIRT_HYPERVISOR_TYPE_XEN 1
+
+#ifndef __ASSEMBLY__
+
+#include <asm/hw_irq.h>
+#include <asm/meminit.h>
+
+/******************************************************************************
+ * general info
+ */
+struct pv_info {
+ unsigned int kernel_rpl;
+ int paravirt_enabled;
+ const char *name;
+};
+
+extern struct pv_info pv_info;
+
+static inline int paravirt_enabled(void)
+{
+ return pv_info.paravirt_enabled;
+}
+
+static inline unsigned int get_kernel_rpl(void)
+{
+ return pv_info.kernel_rpl;
+}
+
+/******************************************************************************
+ * initialization hooks.
+ */
+struct rsvd_region;
+
+struct pv_init_ops {
+ void (*banner)(void);
+
+ int (*reserve_memory)(struct rsvd_region *region);
+
+ void (*arch_setup_early)(void);
+ void (*arch_setup_console)(char **cmdline_p);
+ int (*arch_setup_nomca)(void);
+
+ void (*post_smp_prepare_boot_cpu)(void);
+};
+
+extern struct pv_init_ops pv_init_ops;
+
+static inline void paravirt_banner(void)
+{
+ if (pv_init_ops.banner)
+ pv_init_ops.banner();
+}
+
+static inline int paravirt_reserve_memory(struct rsvd_region *region)
+{
+ if (pv_init_ops.reserve_memory)
+ return pv_init_ops.reserve_memory(region);
+ return 0;
+}
+
+static inline void paravirt_arch_setup_early(void)
+{
+ if (pv_init_ops.arch_setup_early)
+ pv_init_ops.arch_setup_early();
+}
+
+static inline void paravirt_arch_setup_console(char **cmdline_p)
+{
+ if (pv_init_ops.arch_setup_console)
+ pv_init_ops.arch_setup_console(cmdline_p);
+}
+
+static inline int paravirt_arch_setup_nomca(void)
+{
+ if (pv_init_ops.arch_setup_nomca)
+ return pv_init_ops.arch_setup_nomca();
+ return 0;
+}
+
+static inline void paravirt_post_smp_prepare_boot_cpu(void)
+{
+ if (pv_init_ops.post_smp_prepare_boot_cpu)
+ pv_init_ops.post_smp_prepare_boot_cpu();
+}
+
+/******************************************************************************
+ * replacement of iosapic operations.
+ */
+
+struct pv_iosapic_ops {
+ void (*pcat_compat_init)(void);
+
+ struct irq_chip *(*get_irq_chip)(unsigned long trigger);
+
+ unsigned int (*__read)(char __iomem *iosapic, unsigned int reg);
+ void (*__write)(char __iomem *iosapic, unsigned int reg, u32 val);
+};
+
+extern struct pv_iosapic_ops pv_iosapic_ops;
+
+static inline void
+iosapic_pcat_compat_init(void)
+{
+ if (pv_iosapic_ops.pcat_compat_init)
+ pv_iosapic_ops.pcat_compat_init();
+}
+
+static inline struct irq_chip*
+iosapic_get_irq_chip(unsigned long trigger)
+{
+ return pv_iosapic_ops.get_irq_chip(trigger);
+}
+
+static inline unsigned int
+__iosapic_read(char __iomem *iosapic, unsigned int reg)
+{
+ return pv_iosapic_ops.__read(iosapic, reg);
+}
+
+static inline void
+__iosapic_write(char __iomem *iosapic, unsigned int reg, u32 val)
+{
+ return pv_iosapic_ops.__write(iosapic, reg, val);
+}
+
+/******************************************************************************
+ * replacement of irq operations.
+ */
+
+struct pv_irq_ops {
+ void (*register_ipi)(void);
+
+ int (*assign_irq_vector)(int irq);
+ void (*free_irq_vector)(int vector);
+
+ void (*register_percpu_irq)(ia64_vector vec,
+ struct irqaction *action);
+
+ void (*resend_irq)(unsigned int vector);
+};
+
+extern struct pv_irq_ops pv_irq_ops;
+
+static inline void
+ia64_register_ipi(void)
+{
+ pv_irq_ops.register_ipi();
+}
+
+static inline int
+assign_irq_vector(int irq)
+{
+ return pv_irq_ops.assign_irq_vector(irq);
+}
+
+static inline void
+free_irq_vector(int vector)
+{
+ return pv_irq_ops.free_irq_vector(vector);
+}
+
+static inline void
+register_percpu_irq(ia64_vector vec, struct irqaction *action)
+{
+ pv_irq_ops.register_percpu_irq(vec, action);
+}
+
+static inline void
+ia64_resend_irq(unsigned int vector)
+{
+ pv_irq_ops.resend_irq(vector);
+}
+
+/******************************************************************************
+ * replacement of time operations.
+ */
+
+extern struct itc_jitter_data_t itc_jitter_data;
+extern volatile int time_keeper_id;
+
+struct pv_time_ops {
+ void (*init_missing_ticks_accounting)(int cpu);
+ int (*do_steal_accounting)(unsigned long *new_itm);
+
+ void (*clocksource_resume)(void);
+};
+
+extern struct pv_time_ops pv_time_ops;
+
+static inline void
+paravirt_init_missing_ticks_accounting(int cpu)
+{
+ if (pv_time_ops.init_missing_ticks_accounting)
+ pv_time_ops.init_missing_ticks_accounting(cpu);
+}
+
+static inline int
+paravirt_do_steal_accounting(unsigned long *new_itm)
+{
+ return pv_time_ops.do_steal_accounting(new_itm);
+}
+
+#endif /* !__ASSEMBLY__ */
+
+#else
+/* fallback for native case */
+
+#ifndef __ASSEMBLY__
+
+#define paravirt_banner() do { } while (0)
+#define paravirt_reserve_memory(region) 0
+
+#define paravirt_arch_setup_early() do { } while (0)
+#define paravirt_arch_setup_console(cmdline_p) do { } while (0)
+#define paravirt_arch_setup_nomca() 0
+#define paravirt_post_smp_prepare_boot_cpu() do { } while (0)
+
+#define paravirt_init_missing_ticks_accounting(cpu) do { } while (0)
+#define paravirt_do_steal_accounting(new_itm) 0
+
+#endif /* __ASSEMBLY__ */
+
+
+#endif /* CONFIG_PARAVIRT_GUEST */
+
+#endif /* __ASM_PARAVIRT_H */