| /****************************************************************************** |
| * Copyright (c) 2004, 2008 IBM Corporation |
| * All rights reserved. |
| * This program and the accompanying materials |
| * are made available under the terms of the BSD License |
| * which accompanies this distribution, and is available at |
| * http://www.opensource.org/licenses/bsd-license.php |
| * |
| * Contributors: |
| * IBM Corporation - initial implementation |
| *****************************************************************************/ |
| |
| #ifndef __PPC970_H |
| #define __PPC970_H |
| |
| /* SPRs numbers */ |
| |
| #define CTRL_RD 136 |
| #define CTRL_WR 152 |
| #define PVR 287 |
| #define HSPRG0 304 |
| #define HSPRG1 305 |
| #define HIOR 311 |
| #define HID0 1008 |
| #define HID1 1009 |
| #define HID4 1012 |
| #define HID6 1017 |
| #define PIR 1023 |
| |
| #define SETCI(r) sync; \ |
| mfspr r, HID4; \ |
| sync; \ |
| rldicl r, r, 32,0; \ |
| ori r, r, 0x0100; \ |
| rldicl r, r, 32,0; \ |
| sync; \ |
| slbia; \ |
| mtspr HID4, r; \ |
| isync; \ |
| eieio; |
| |
| #define CLRCI(r) sync; \ |
| mfspr r, HID4; \ |
| sync; \ |
| rldicl r, r, 32, 0; \ |
| ori r, r, 0x0100; \ |
| xori r, r, 0x0100; \ |
| rldicl r, r, 32, 0; \ |
| sync; \ |
| slbia; \ |
| mtspr HID4, r; \ |
| isync; \ |
| eieio; |
| |
| /* This macro uses r0 */ |
| #define FLUSH_CACHE(r, n) add n, n, r; \ |
| addi n, n, 127; \ |
| rlwinm r, r, 0,0,24; \ |
| rlwinm n, n, 0,0,24; \ |
| sub n, n, r; \ |
| srwi n, n, 7; \ |
| mtctr n; \ |
| 0: dcbst 0, r; \ |
| sync; \ |
| icbi 0, r; \ |
| sync; \ |
| isync; \ |
| addi r, r, 128; \ |
| bdnz 0b; |
| |
| #ifndef __ASSEMBLER__ |
| #define STRINGIFY(x...) #x |
| #define EXPAND(x) STRINGIFY(x) |
| |
| static inline void |
| set_ci(void) |
| { |
| unsigned long tmp; |
| asm volatile(EXPAND(SETCI(%0)) : "=r"(tmp) :: "memory", "cc"); |
| } |
| |
| static inline void |
| clr_ci(void) |
| { |
| unsigned long tmp; |
| asm volatile(EXPAND(CLRCI(%0)) : "=r"(tmp) :: "memory", "cc"); |
| } |
| |
| static inline void |
| eieio(void) |
| { |
| asm volatile ("eieio":::"memory"); |
| } |
| |
| static inline void |
| flush_cache(void* r, long n) |
| { |
| asm volatile(EXPAND(FLUSH_CACHE(%0, %1)) : "+r"(r), "+r"(n) :: "memory", "cc", "r0", "ctr"); |
| } |
| |
| #endif /* __ASSEMBLER__ */ |
| |
| #endif |