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-rw-r--r--include/asm-mips/mipsregs.h39
1 files changed, 38 insertions, 1 deletions
diff --git a/include/asm-mips/mipsregs.h b/include/asm-mips/mipsregs.h
index 89c81922d47c..706b3691f57e 100644
--- a/include/asm-mips/mipsregs.h
+++ b/include/asm-mips/mipsregs.h
@@ -7,7 +7,7 @@
7 * Copyright (C) 2000 Silicon Graphics, Inc. 7 * Copyright (C) 2000 Silicon Graphics, Inc.
8 * Modified for further R[236]000 support by Paul M. Antoine, 1996. 8 * Modified for further R[236]000 support by Paul M. Antoine, 1996.
9 * Kevin D. Kissell, kevink@mips.com and Carsten Langgaard, carstenl@mips.com 9 * Kevin D. Kissell, kevink@mips.com and Carsten Langgaard, carstenl@mips.com
10 * Copyright (C) 2000 MIPS Technologies, Inc. All rights reserved. 10 * Copyright (C) 2000, 07 MIPS Technologies, Inc.
11 * Copyright (C) 2003, 2004 Maciej W. Rozycki 11 * Copyright (C) 2003, 2004 Maciej W. Rozycki
12 */ 12 */
13#ifndef _ASM_MIPSREGS_H 13#ifndef _ASM_MIPSREGS_H
@@ -15,6 +15,7 @@
15 15
16#include <linux/linkage.h> 16#include <linux/linkage.h>
17#include <asm/hazards.h> 17#include <asm/hazards.h>
18#include <asm/war.h>
18 19
19/* 20/*
20 * The following macros are especially useful for __asm__ 21 * The following macros are especially useful for __asm__
@@ -533,9 +534,13 @@
533#define MIPS_CONF3_VEIC (_ULCAST_(1) << 6) 534#define MIPS_CONF3_VEIC (_ULCAST_(1) << 6)
534#define MIPS_CONF3_LPA (_ULCAST_(1) << 7) 535#define MIPS_CONF3_LPA (_ULCAST_(1) << 7)
535#define MIPS_CONF3_DSP (_ULCAST_(1) << 10) 536#define MIPS_CONF3_DSP (_ULCAST_(1) << 10)
537#define MIPS_CONF3_ULRI (_ULCAST_(1) << 13)
536 538
537#define MIPS_CONF7_WII (_ULCAST_(1) << 31) 539#define MIPS_CONF7_WII (_ULCAST_(1) << 31)
538 540
541#define MIPS_CONF7_RPS (_ULCAST_(1) << 2)
542
543
539/* 544/*
540 * Bits in the MIPS32/64 coprocessor 1 (FPU) revision register. 545 * Bits in the MIPS32/64 coprocessor 1 (FPU) revision register.
541 */ 546 */
@@ -772,6 +777,9 @@ do { \
772#define read_c0_context() __read_ulong_c0_register($4, 0) 777#define read_c0_context() __read_ulong_c0_register($4, 0)
773#define write_c0_context(val) __write_ulong_c0_register($4, 0, val) 778#define write_c0_context(val) __write_ulong_c0_register($4, 0, val)
774 779
780#define read_c0_userlocal() __read_ulong_c0_register($4, 2)
781#define write_c0_userlocal(val) __write_ulong_c0_register($4, 2, val)
782
775#define read_c0_pagemask() __read_32bit_c0_register($5, 0) 783#define read_c0_pagemask() __read_32bit_c0_register($5, 0)
776#define write_c0_pagemask(val) __write_32bit_c0_register($5, 0, val) 784#define write_c0_pagemask(val) __write_32bit_c0_register($5, 0, val)
777 785
@@ -1294,10 +1302,39 @@ static inline void tlb_probe(void)
1294 1302
1295static inline void tlb_read(void) 1303static inline void tlb_read(void)
1296{ 1304{
1305#if MIPS34K_MISSED_ITLB_WAR
1306 int res = 0;
1307
1308 __asm__ __volatile__(
1309 " .set push \n"
1310 " .set noreorder \n"
1311 " .set noat \n"
1312 " .set mips32r2 \n"
1313 " .word 0x41610001 # dvpe $1 \n"
1314 " move %0, $1 \n"
1315 " ehb \n"
1316 " .set pop \n"
1317 : "=r" (res));
1318
1319 instruction_hazard();
1320#endif
1321
1297 __asm__ __volatile__( 1322 __asm__ __volatile__(
1298 ".set noreorder\n\t" 1323 ".set noreorder\n\t"
1299 "tlbr\n\t" 1324 "tlbr\n\t"
1300 ".set reorder"); 1325 ".set reorder");
1326
1327#if MIPS34K_MISSED_ITLB_WAR
1328 if ((res & _ULCAST_(1)))
1329 __asm__ __volatile__(
1330 " .set push \n"
1331 " .set noreorder \n"
1332 " .set noat \n"
1333 " .set mips32r2 \n"
1334 " .word 0x41600021 # evpe \n"
1335 " ehb \n"
1336 " .set pop \n");
1337#endif
1301} 1338}
1302 1339
1303static inline void tlb_write_indexed(void) 1340static inline void tlb_write_indexed(void)