diff options
Diffstat (limited to 'target/linux/ubicom32/files/arch/ubicom32/include/asm/ip5000-asm.h')
| -rw-r--r-- | target/linux/ubicom32/files/arch/ubicom32/include/asm/ip5000-asm.h | 156 |
1 files changed, 156 insertions, 0 deletions
diff --git a/target/linux/ubicom32/files/arch/ubicom32/include/asm/ip5000-asm.h b/target/linux/ubicom32/files/arch/ubicom32/include/asm/ip5000-asm.h new file mode 100644 index 000000000..62929e49f --- /dev/null +++ b/target/linux/ubicom32/files/arch/ubicom32/include/asm/ip5000-asm.h @@ -0,0 +1,156 @@ +/* + * arch/ubicom32/include/asm/ip5000-asm.h + * Instruction macros for the IP5000. + * + * (C) Copyright 2009, Ubicom, Inc. + * + * This file is part of the Ubicom32 Linux Kernel Port. + * + * The Ubicom32 Linux Kernel Port is free software: you can redistribute + * it and/or modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation, either version 2 of the + * License, or (at your option) any later version. + * + * The Ubicom32 Linux Kernel Port is distributed in the hope that it + * will be useful, but WITHOUT ANY WARRANTY; without even the implied + * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See + * the GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with the Ubicom32 Linux Kernel Port. If not, + * see <http://www.gnu.org/licenses/>. + * + * Ubicom32 implementation derived from (with many thanks): + * arch/m68knommu + * arch/blackfin + * arch/parisc + */ + +#ifndef _ASM_UBICOM32_IP5000_ASM_H +#define _ASM_UBICOM32_IP5000_ASM_H + +#if !defined(__LINKER__) + +#if defined(__ASSEMBLY__) +.macro cycles quant +.if (\quant) == 1 + nop +.else +.if (((\quant) + 3) / 8) > 0 +.rept (((\quant) + 3) / 8) + jmpt.f .+4 +.endr +.endif +.if ((((\quant) + 3) % 8) / 4) > 0 + jmpt.t .+4 +.endif +.endif +.endm +#else +/* + * Same macro as above just in C inline asm + */ +asm (" \n\ +.macro cycles quant \n\ +.if (\\quant) == 1 \n\ + nop \n\ +.else \n\ +.if (((\\quant) + 3) / 8) > 0 \n\ +.rept (((\\quant) + 3) / 8) \n\ + jmpt.f .+4 \n\ +.endr \n\ +.endif \n\ +.if ((((\\quant) + 3) % 8) / 4) > 0 \n\ + jmpt.t .+4 \n\ +.endif \n\ +.endif \n\ +.endm \n\ +"); +#endif + + +#if defined(__ASSEMBLY__) +.macro pipe_flush cyc + cycles 11 - (\cyc) +.endm +#else +/* + * Same macro as above just in C inline asm + */ +asm (" \n\ +.macro pipe_flush cyc \n\ + cycles 11 - (\\cyc) \n\ +.endm \n\ +"); + +#endif + +#if defined(__ASSEMBLY__) +.macro setcsr_flush cyc + cycles 5 - (\cyc) +.endm +#else +/* + * Same macro as above just in C inline asm + */ +asm (" \n\ +.macro setcsr_flush cyc \n\ + cycles 5 - (\\cyc) \n\ +.endm \n\ +"); +#endif + +/* + * Macros for prefetch (using miss-aligned memory write) + */ +#if defined(__ASSEMBLY__) + +.macro pre_fetch_macro thread_num, Ascratch, Aaddress length + bclr MT_TRAP_EN, MT_TRAP_EN, #(\thread_num) + bset \Ascratch, \Aaddress, #0 ; force a miss-aligned address + jmpt.t .+4 ; delay for both address setup and trap disable + move.4 (\Ascratch), #0 + .if (\length > 32) + move.4 32(\Ascratch), #0 + .endif + .if (\length > 64) + move.4 64(\Ascratch), #0 + .endif + .if (\length > 96) + move.4 96(\Ascratch), #0 + .endif + .if (\length > 128) + invalid_instruction ; maximum pre-fetch size is 4 cache lines + .endif + bset MT_TRAP_EN, MT_TRAP_EN, #(\thread_num) +.endm + +#else +/* + * Same macro as above just in C inline asm + */ +asm (" \n\ +.macro pre_fetch_macro thread_num, Ascratch, Aaddress length \n\ + bclr MT_TRAP_EN, MT_TRAP_EN, #(\thread_num) \n\ + bset \\Ascratch, \\Aaddress, #0 ; force a miss-aligned address \n\ + jmpt.t .+4 ; delay for both address setup and trap disable \n\ + move.4 (\\Ascratch), #0 \n\ + .if (\\length > 32) \n\ + move.4 32(\\Ascratch), #0 \n\ + .endif \n\ + .if (\\length > 64) \n\ + move.4 64(\\Ascratch), #0 \n\ + .endif \n\ + .if (\\length > 96) \n\ + move.4 96(\\Ascratch), #0 \n\ + .endif \n\ + .if (\\length > 128) \n\ + invalid_instruction ; maximum pre-fetch size is 4 cache lines \n\ + .endif \n\ + bset MT_TRAP_EN, MT_TRAP_EN, #(\\thread_num) \n\ +.endm \n\ +"); +#endif + +#endif /* !defined(__LINKER__) */ +#endif /* defined _ASM_UBICOM32_IP5000_ASM_H */ |