Commit e55ce456 authored by Zou Nan hai's avatar Zou Nan hai Committed by Tony Luck
Browse files

[IA64] Don't alloc empty frame in ia64_switch_mode_phys 



I think ia64_switch_mode_phys and ia64_switch_mode_virt
does not need to alloc an empty frame.
An empty frame is required by loadrs but flushrs
does not need that.

Signed-off-by: default avatarZou Nan hai <nanhai.zou@intel.com>
Signed-off-by: default avatarTony Luck <tony.luck@intel.com>
parent acb15c85

arch/ia64/kernel/head.S

+0 −2
Original line number Diff line number Diff line
@@ -853,7 +853,6 @@ END(__ia64_init_fpu) 
 */

GLOBAL_ENTRY(ia64_switch_mode_phys)

 {

	alloc r2=ar.pfs,0,0,0,0

	rsm psr.i | psr.ic		// disable interrupts and interrupt collection

	mov r15=ip

 }
@@ -902,7 +901,6 @@ END(ia64_switch_mode_phys) 
 */

GLOBAL_ENTRY(ia64_switch_mode_virt)

 {

	alloc r2=ar.pfs,0,0,0,0

	rsm psr.i | psr.ic		// disable interrupts and interrupt collection

	mov r15=ip

 }

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