[IA64] Add API for allocating Dynamic TR resource.

Dynamic TR resource should be managed in the uniform way.
Add two interfaces for kernel:
ia64_itr_entry: Allocate a (pair of) TR for caller.
ia64_ptr_entry: Purge a (pair of ) TR by caller.

Signed-off-by: Xiantao Zhang <xiantao.zhang@intel.com>
Signed-off-by: Anthony Xu <anthony.xu@intel.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>

1 files changed, 3 insertions, 0 deletions

diff --git a/include/asm-ia64/kregs.h b/include/asm-ia64/kregs.h
index 7e55a584975c..aefcdfee7f23 100644
--- a/include/asm-ia64/kregs.h
+++ b/include/asm-ia64/kregs.h
@@ -31,6 +31,9 @@
 #define IA64_TR_PALCODE         1       /* itr1: maps PALcode as required by EFI */
 #define IA64_TR_CURRENT_STACK   1       /* dtr1: maps kernel's memory- & register-stacks */
 
+#define IA64_TR_ALLOC_BASE      2       /* itr&dtr: Base of dynamic TR resource*/
+#define IA64_TR_ALLOC_MAX       32      /* Max number for dynamic use*/
+
 /* Processor status register bits: */
 #define IA64_PSR_BE_BIT         1
 #define IA64_PSR_UP_BIT         2