summaryrefslogtreecommitdiffstats
path: root/include/asm-ia64/intrinsics.h
diff options
context:
space:
mode:
authorIsaku Yamahata <yamahata@valinux.co.jp>2008-05-19 22:13:34 +0900
committerTony Luck <tony.luck@intel.com>2008-05-27 14:40:18 -0700
commit1ff730b52f0c3e4e3846c3ff345c5526b2633ba9 (patch)
tree59a614eaa0679ba0ccd99e1f910ceeb22fc31948 /include/asm-ia64/intrinsics.h
parent3e0879deb700f322f6c81ab34f056fc72d15ec02 (diff)
downloadop-kernel-dev-1ff730b52f0c3e4e3846c3ff345c5526b2633ba9.zip
op-kernel-dev-1ff730b52f0c3e4e3846c3ff345c5526b2633ba9.tar.gz
[IA64] pvops: introduce pv_cpu_ops to paravirtualize privileged instructions.
introduce pv_cpu_ops to paravirtualize privleged instructions which are defined by ia64 intrinsics. make them indirect C function calls by introducing function tables, pv_cpu_ops. Signed-off-by: Yaozu (Eddie) Dong <eddie.dong@intel.com> Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp> Signed-off-by: Tony Luck <tony.luck@intel.com>
Diffstat (limited to 'include/asm-ia64/intrinsics.h')
-rw-r--r--include/asm-ia64/intrinsics.h62
1 files changed, 53 insertions, 9 deletions
diff --git a/include/asm-ia64/intrinsics.h b/include/asm-ia64/intrinsics.h
index a3b9689..47d686d 100644
--- a/include/asm-ia64/intrinsics.h
+++ b/include/asm-ia64/intrinsics.h
@@ -18,15 +18,15 @@
# include <asm/gcc_intrin.h>
#endif
-#define ia64_get_psr_i() (ia64_getreg(_IA64_REG_PSR) & IA64_PSR_I)
-
-#define ia64_set_rr0_to_rr4(val0, val1, val2, val3, val4) \
-do { \
- ia64_set_rr(0x0000000000000000UL, (val0)); \
- ia64_set_rr(0x2000000000000000UL, (val1)); \
- ia64_set_rr(0x4000000000000000UL, (val2)); \
- ia64_set_rr(0x6000000000000000UL, (val3)); \
- ia64_set_rr(0x8000000000000000UL, (val4)); \
+#define ia64_native_get_psr_i() (ia64_native_getreg(_IA64_REG_PSR) & IA64_PSR_I)
+
+#define ia64_native_set_rr0_to_rr4(val0, val1, val2, val3, val4) \
+do { \
+ ia64_native_set_rr(0x0000000000000000UL, (val0)); \
+ ia64_native_set_rr(0x2000000000000000UL, (val1)); \
+ ia64_native_set_rr(0x4000000000000000UL, (val2)); \
+ ia64_native_set_rr(0x6000000000000000UL, (val3)); \
+ ia64_native_set_rr(0x8000000000000000UL, (val4)); \
} while (0)
/*
@@ -194,4 +194,48 @@ extern long ia64_cmpxchg_called_with_bad_pointer (void);
#endif /* !CONFIG_IA64_DEBUG_CMPXCHG */
#endif
+
+#ifdef __KERNEL__
+#include <asm/paravirt_privop.h>
+#endif
+
+#ifndef __ASSEMBLY__
+#if defined(CONFIG_PARAVIRT) && defined(__KERNEL__)
+#define IA64_INTRINSIC_API(name) pv_cpu_ops.name
+#define IA64_INTRINSIC_MACRO(name) paravirt_ ## name
+#else
+#define IA64_INTRINSIC_API(name) ia64_native_ ## name
+#define IA64_INTRINSIC_MACRO(name) ia64_native_ ## name
+#endif
+
+/************************************************/
+/* Instructions paravirtualized for correctness */
+/************************************************/
+/* fc, thash, get_cpuid, get_pmd, get_eflags, set_eflags */
+/* Note that "ttag" and "cover" are also privilege-sensitive; "ttag"
+ * is not currently used (though it may be in a long-format VHPT system!)
+ */
+#define ia64_fc IA64_INTRINSIC_API(fc)
+#define ia64_thash IA64_INTRINSIC_API(thash)
+#define ia64_get_cpuid IA64_INTRINSIC_API(get_cpuid)
+#define ia64_get_pmd IA64_INTRINSIC_API(get_pmd)
+
+
+/************************************************/
+/* Instructions paravirtualized for performance */
+/************************************************/
+#define ia64_ssm IA64_INTRINSIC_MACRO(ssm)
+#define ia64_rsm IA64_INTRINSIC_MACRO(rsm)
+#define ia64_getreg IA64_INTRINSIC_API(getreg)
+#define ia64_setreg IA64_INTRINSIC_API(setreg)
+#define ia64_set_rr IA64_INTRINSIC_API(set_rr)
+#define ia64_get_rr IA64_INTRINSIC_API(get_rr)
+#define ia64_ptcga IA64_INTRINSIC_API(ptcga)
+#define ia64_get_psr_i IA64_INTRINSIC_API(get_psr_i)
+#define ia64_intrin_local_irq_restore \
+ IA64_INTRINSIC_API(intrin_local_irq_restore)
+#define ia64_set_rr0_to_rr4 IA64_INTRINSIC_API(set_rr0_to_rr4)
+
+#endif /* !__ASSEMBLY__ */
+
#endif /* _ASM_IA64_INTRINSICS_H */
OpenPOWER on IntegriCloud