18c2ecf20Sopenharmony_ci/* 28c2ecf20Sopenharmony_ci * arch/arm/mach-iop32x/include/mach/entry-macro.S 38c2ecf20Sopenharmony_ci * 48c2ecf20Sopenharmony_ci * Low-level IRQ helper macros for IOP32x-based platforms 58c2ecf20Sopenharmony_ci * 68c2ecf20Sopenharmony_ci * This file is licensed under the terms of the GNU General Public 78c2ecf20Sopenharmony_ci * License version 2. This program is licensed "as is" without any 88c2ecf20Sopenharmony_ci * warranty of any kind, whether express or implied. 98c2ecf20Sopenharmony_ci */ 108c2ecf20Sopenharmony_ci .macro get_irqnr_preamble, base, tmp 118c2ecf20Sopenharmony_ci mrc p15, 0, \tmp, c15, c1, 0 128c2ecf20Sopenharmony_ci orr \tmp, \tmp, #(1 << 6) 138c2ecf20Sopenharmony_ci mcr p15, 0, \tmp, c15, c1, 0 @ Enable cp6 access 148c2ecf20Sopenharmony_ci mrc p15, 0, \tmp, c15, c1, 0 158c2ecf20Sopenharmony_ci mov \tmp, \tmp 168c2ecf20Sopenharmony_ci sub pc, pc, #4 @ cp_wait 178c2ecf20Sopenharmony_ci .endm 188c2ecf20Sopenharmony_ci 198c2ecf20Sopenharmony_ci .macro get_irqnr_and_base, irqnr, irqstat, base, tmp 208c2ecf20Sopenharmony_ci mrc p6, 0, \irqstat, c8, c0, 0 @ Read IINTSRC 218c2ecf20Sopenharmony_ci cmp \irqstat, #0 228c2ecf20Sopenharmony_ci clzne \irqnr, \irqstat 238c2ecf20Sopenharmony_ci rsbne \irqnr, \irqnr, #32 248c2ecf20Sopenharmony_ci .endm 258c2ecf20Sopenharmony_ci 268c2ecf20Sopenharmony_ci .macro arch_ret_to_user, tmp1, tmp2 278c2ecf20Sopenharmony_ci mrc p15, 0, \tmp1, c15, c1, 0 288c2ecf20Sopenharmony_ci ands \tmp2, \tmp1, #(1 << 6) 298c2ecf20Sopenharmony_ci bicne \tmp1, \tmp1, #(1 << 6) 308c2ecf20Sopenharmony_ci mcrne p15, 0, \tmp1, c15, c1, 0 @ Disable cp6 access 318c2ecf20Sopenharmony_ci .endm 32