1*4882a593Smuzhiyun/* 2*4882a593Smuzhiyun * arch/arm/mach-iop32x/include/mach/entry-macro.S 3*4882a593Smuzhiyun * 4*4882a593Smuzhiyun * Low-level IRQ helper macros for IOP32x-based platforms 5*4882a593Smuzhiyun * 6*4882a593Smuzhiyun * This file is licensed under the terms of the GNU General Public 7*4882a593Smuzhiyun * License version 2. This program is licensed "as is" without any 8*4882a593Smuzhiyun * warranty of any kind, whether express or implied. 9*4882a593Smuzhiyun */ 10*4882a593Smuzhiyun .macro get_irqnr_preamble, base, tmp 11*4882a593Smuzhiyun mrc p15, 0, \tmp, c15, c1, 0 12*4882a593Smuzhiyun orr \tmp, \tmp, #(1 << 6) 13*4882a593Smuzhiyun mcr p15, 0, \tmp, c15, c1, 0 @ Enable cp6 access 14*4882a593Smuzhiyun mrc p15, 0, \tmp, c15, c1, 0 15*4882a593Smuzhiyun mov \tmp, \tmp 16*4882a593Smuzhiyun sub pc, pc, #4 @ cp_wait 17*4882a593Smuzhiyun .endm 18*4882a593Smuzhiyun 19*4882a593Smuzhiyun .macro get_irqnr_and_base, irqnr, irqstat, base, tmp 20*4882a593Smuzhiyun mrc p6, 0, \irqstat, c8, c0, 0 @ Read IINTSRC 21*4882a593Smuzhiyun cmp \irqstat, #0 22*4882a593Smuzhiyun clzne \irqnr, \irqstat 23*4882a593Smuzhiyun rsbne \irqnr, \irqnr, #32 24*4882a593Smuzhiyun .endm 25*4882a593Smuzhiyun 26*4882a593Smuzhiyun .macro arch_ret_to_user, tmp1, tmp2 27*4882a593Smuzhiyun mrc p15, 0, \tmp1, c15, c1, 0 28*4882a593Smuzhiyun ands \tmp2, \tmp1, #(1 << 6) 29*4882a593Smuzhiyun bicne \tmp1, \tmp1, #(1 << 6) 30*4882a593Smuzhiyun mcrne p15, 0, \tmp1, c15, c1, 0 @ Disable cp6 access 31*4882a593Smuzhiyun .endm 32