diff options
Diffstat (limited to 'ANDROID_3.4.5/arch/powerpc/include/asm/dcr-native.h')
| -rw-r--r-- | ANDROID_3.4.5/arch/powerpc/include/asm/dcr-native.h | 155 |
1 files changed, 0 insertions, 155 deletions
diff --git a/ANDROID_3.4.5/arch/powerpc/include/asm/dcr-native.h b/ANDROID_3.4.5/arch/powerpc/include/asm/dcr-native.h deleted file mode 100644 index 7d2e6235..00000000 --- a/ANDROID_3.4.5/arch/powerpc/include/asm/dcr-native.h +++ /dev/null @@ -1,155 +0,0 @@ -/* - * (c) Copyright 2006 Benjamin Herrenschmidt, IBM Corp. - * <benh@kernel.crashing.org> - * - * This program 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. - * - * This program 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 this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - */ - -#ifndef _ASM_POWERPC_DCR_NATIVE_H -#define _ASM_POWERPC_DCR_NATIVE_H -#ifdef __KERNEL__ -#ifndef __ASSEMBLY__ - -#include <linux/spinlock.h> -#include <asm/cputable.h> - -typedef struct { - unsigned int base; -} dcr_host_native_t; - -static inline bool dcr_map_ok_native(dcr_host_native_t host) -{ - return 1; -} - -#define dcr_map_native(dev, dcr_n, dcr_c) \ - ((dcr_host_native_t){ .base = (dcr_n) }) -#define dcr_unmap_native(host, dcr_c) do {} while (0) -#define dcr_read_native(host, dcr_n) mfdcr(dcr_n + host.base) -#define dcr_write_native(host, dcr_n, value) mtdcr(dcr_n + host.base, value) - -/* Table based DCR accessors */ -extern void __mtdcr(unsigned int reg, unsigned int val); -extern unsigned int __mfdcr(unsigned int reg); - -/* mfdcrx/mtdcrx instruction based accessors. We hand code - * the opcodes in order not to depend on newer binutils - */ -static inline unsigned int mfdcrx(unsigned int reg) -{ - unsigned int ret; - asm volatile(".long 0x7c000206 | (%0 << 21) | (%1 << 16)" - : "=r" (ret) : "r" (reg)); - return ret; -} - -static inline void mtdcrx(unsigned int reg, unsigned int val) -{ - asm volatile(".long 0x7c000306 | (%0 << 21) | (%1 << 16)" - : : "r" (val), "r" (reg)); -} - -#define mfdcr(rn) \ - ({unsigned int rval; \ - if (__builtin_constant_p(rn) && rn < 1024) \ - asm volatile("mfdcr %0," __stringify(rn) \ - : "=r" (rval)); \ - else if (likely(cpu_has_feature(CPU_FTR_INDEXED_DCR))) \ - rval = mfdcrx(rn); \ - else \ - rval = __mfdcr(rn); \ - rval;}) - -#define mtdcr(rn, v) \ -do { \ - if (__builtin_constant_p(rn) && rn < 1024) \ - asm volatile("mtdcr " __stringify(rn) ",%0" \ - : : "r" (v)); \ - else if (likely(cpu_has_feature(CPU_FTR_INDEXED_DCR))) \ - mtdcrx(rn, v); \ - else \ - __mtdcr(rn, v); \ -} while (0) - -/* R/W of indirect DCRs make use of standard naming conventions for DCRs */ -extern spinlock_t dcr_ind_lock; - -static inline unsigned __mfdcri(int base_addr, int base_data, int reg) -{ - unsigned long flags; - unsigned int val; - - spin_lock_irqsave(&dcr_ind_lock, flags); - if (cpu_has_feature(CPU_FTR_INDEXED_DCR)) { - mtdcrx(base_addr, reg); - val = mfdcrx(base_data); - } else { - __mtdcr(base_addr, reg); - val = __mfdcr(base_data); - } - spin_unlock_irqrestore(&dcr_ind_lock, flags); - return val; -} - -static inline void __mtdcri(int base_addr, int base_data, int reg, - unsigned val) -{ - unsigned long flags; - - spin_lock_irqsave(&dcr_ind_lock, flags); - if (cpu_has_feature(CPU_FTR_INDEXED_DCR)) { - mtdcrx(base_addr, reg); - mtdcrx(base_data, val); - } else { - __mtdcr(base_addr, reg); - __mtdcr(base_data, val); - } - spin_unlock_irqrestore(&dcr_ind_lock, flags); -} - -static inline void __dcri_clrset(int base_addr, int base_data, int reg, - unsigned clr, unsigned set) -{ - unsigned long flags; - unsigned int val; - - spin_lock_irqsave(&dcr_ind_lock, flags); - if (cpu_has_feature(CPU_FTR_INDEXED_DCR)) { - mtdcrx(base_addr, reg); - val = (mfdcrx(base_data) & ~clr) | set; - mtdcrx(base_data, val); - } else { - __mtdcr(base_addr, reg); - val = (__mfdcr(base_data) & ~clr) | set; - __mtdcr(base_data, val); - } - spin_unlock_irqrestore(&dcr_ind_lock, flags); -} - -#define mfdcri(base, reg) __mfdcri(DCRN_ ## base ## _CONFIG_ADDR, \ - DCRN_ ## base ## _CONFIG_DATA, \ - reg) - -#define mtdcri(base, reg, data) __mtdcri(DCRN_ ## base ## _CONFIG_ADDR, \ - DCRN_ ## base ## _CONFIG_DATA, \ - reg, data) - -#define dcri_clrset(base, reg, clr, set) __dcri_clrset(DCRN_ ## base ## _CONFIG_ADDR, \ - DCRN_ ## base ## _CONFIG_DATA, \ - reg, clr, set) - -#endif /* __ASSEMBLY__ */ -#endif /* __KERNEL__ */ -#endif /* _ASM_POWERPC_DCR_NATIVE_H */ |