[IA64] Itanium MC Error Injection Tool: pal_mc_error_inject() interface

This patch implements pal_mc_error_inject() interface in kernel. Both physical
mode and virtual mode are supported.

Signed-off-by: Fenghua Yu <fenghua.yu@intel.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>

diff --git a/include/asm-ia64/pal.h b/include/asm-ia64/pal.h
index bc76815..56e9210 100644 (file)
--- a/include/asm-ia64/pal.h
+++ b/include/asm-ia64/pal.h
@@ -89,6 +89,8 @@
 #define PAL_GET_PSTATE_TYPE_AVGNORESET 2
 #define PAL_GET_PSTATE_TYPE_INSTANT    3
 
+#define PAL_MC_ERROR_INJECT    276     /* Injects processor error or returns injection capabilities */
+
 #ifndef __ASSEMBLY__
 
 #include <linux/types.h>
@@ -1234,6 +1236,37 @@ ia64_pal_mc_error_info (u64 info_index, u64 type_index, u64 *size, u64 *error_in
        return iprv.status;
 }
 
+/* Injects the requested processor error or returns info on
+ * supported injection capabilities for current processor implementation
+ */
+static inline s64
+ia64_pal_mc_error_inject_phys (u64 err_type_info, u64 err_struct_info,
+                       u64 err_data_buffer, u64 *capabilities, u64 *resources)
+{
+       struct ia64_pal_retval iprv;
+       PAL_CALL_PHYS_STK(iprv, PAL_MC_ERROR_INJECT, err_type_info,
+                         err_struct_info, err_data_buffer);
+       if (capabilities)
+               *capabilities= iprv.v0;
+       if (resources)
+               *resources= iprv.v1;
+       return iprv.status;
+}
+
+static inline s64
+ia64_pal_mc_error_inject_virt (u64 err_type_info, u64 err_struct_info,
+                       u64 err_data_buffer, u64 *capabilities, u64 *resources)
+{
+       struct ia64_pal_retval iprv;
+       PAL_CALL_STK(iprv, PAL_MC_ERROR_INJECT, err_type_info,
+                         err_struct_info, err_data_buffer);
+       if (capabilities)
+               *capabilities= iprv.v0;
+       if (resources)
+               *resources= iprv.v1;
+       return iprv.status;
+}
+
 /* Inform PALE_CHECK whether a machine check is expected so that PALE_CHECK willnot
  * attempt to correct any expected machine checks.
  */