Merge commit 'v2.6.28-rc6' into core/debug

1 files changed, 0 insertions, 244 deletions

diff --git a/include/asm-mips/war.h b/include/asm-mips/war.h
deleted file mode 100644
index 22361d5e3bf..00000000000
--- a/include/asm-mips/war.h
+++ /dev/null
@@ -1,244 +0,0 @@
-/*
- * This file is subject to the terms and conditions of the GNU General Public
- * License.  See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * Copyright (C) 2002, 2004, 2007 by Ralf Baechle
- * Copyright (C) 2007  Maciej W. Rozycki
- */
-#ifndef _ASM_WAR_H
-#define _ASM_WAR_H
-
-#include <war.h>
-
-/*
- * Work around certain R4000 CPU errata (as implemented by GCC):
- *
- * - A double-word or a variable shift may give an incorrect result
- *   if executed immediately after starting an integer division:
- *   "MIPS R4000PC/SC Errata, Processor Revision 2.2 and 3.0",
- *   erratum #28
- *   "MIPS R4000MC Errata, Processor Revision 2.2 and 3.0", erratum
- *   #19
- *
- * - A double-word or a variable shift may give an incorrect result
- *   if executed while an integer multiplication is in progress:
- *   "MIPS R4000PC/SC Errata, Processor Revision 2.2 and 3.0",
- *   errata #16 & #28
- *
- * - An integer division may give an incorrect result if started in
- *   a delay slot of a taken branch or a jump:
- *   "MIPS R4000PC/SC Errata, Processor Revision 2.2 and 3.0",
- *   erratum #52
- */
-#ifdef CONFIG_CPU_R4000_WORKAROUNDS
-#define R4000_WAR 1
-#else
-#define R4000_WAR 0
-#endif
-
-/*
- * Work around certain R4400 CPU errata (as implemented by GCC):
- *
- * - A double-word or a variable shift may give an incorrect result
- *   if executed immediately after starting an integer division:
- *   "MIPS R4400MC Errata, Processor Revision 1.0", erratum #10
- *   "MIPS R4400MC Errata, Processor Revision 2.0 & 3.0", erratum #4
- */
-#ifdef CONFIG_CPU_R4400_WORKAROUNDS
-#define R4400_WAR 1
-#else
-#define R4400_WAR 0
-#endif
-
-/*
- * Work around the "daddi" and "daddiu" CPU errata:
- *
- * - The `daddi' instruction fails to trap on overflow.
- *   "MIPS R4000PC/SC Errata, Processor Revision 2.2 and 3.0",
- *   erratum #23
- *
- * - The `daddiu' instruction can produce an incorrect result.
- *   "MIPS R4000PC/SC Errata, Processor Revision 2.2 and 3.0",
- *   erratum #41
- *   "MIPS R4000MC Errata, Processor Revision 2.2 and 3.0", erratum
- *   #15
- *   "MIPS R4400PC/SC Errata, Processor Revision 1.0", erratum #7
- *   "MIPS R4400MC Errata, Processor Revision 1.0", erratum #5
- */
-#ifdef CONFIG_CPU_DADDI_WORKAROUNDS
-#define DADDI_WAR 1
-#else
-#define DADDI_WAR 0
-#endif
-
-/*
- * Another R4600 erratum.  Due to the lack of errata information the exact
- * technical details aren't known.  I've experimentally found that disabling
- * interrupts during indexed I-cache flushes seems to be sufficient to deal
- * with the issue.
- */
-#ifndef R4600_V1_INDEX_ICACHEOP_WAR
-#error Check setting of R4600_V1_INDEX_ICACHEOP_WAR for your platform
-#endif
-
-/*
- * Pleasures of the R4600 V1.x.  Cite from the IDT R4600 V1.7 errata:
- *
- *  18. The CACHE instructions Hit_Writeback_Invalidate_D, Hit_Writeback_D,
- *      Hit_Invalidate_D and Create_Dirty_Excl_D should only be
- *      executed if there is no other dcache activity. If the dcache is
- *      accessed for another instruction immeidately preceding when these
- *      cache instructions are executing, it is possible that the dcache
- *      tag match outputs used by these cache instructions will be
- *      incorrect. These cache instructions should be preceded by at least
- *      four instructions that are not any kind of load or store
- *      instruction.
- *
- *      This is not allowed:    lw
- *                              nop
- *                              nop
- *                              nop
- *                              cache       Hit_Writeback_Invalidate_D
- *
- *      This is allowed:        lw
- *                              nop
- *                              nop
- *                              nop
- *                              nop
- *                              cache       Hit_Writeback_Invalidate_D
- */
-#ifndef R4600_V1_HIT_CACHEOP_WAR
-#error Check setting of R4600_V1_HIT_CACHEOP_WAR for your platform
-#endif
-
-
-/*
- * Writeback and invalidate the primary cache dcache before DMA.
- *
- * R4600 v2.0 bug: "The CACHE instructions Hit_Writeback_Inv_D,
- * Hit_Writeback_D, Hit_Invalidate_D and Create_Dirty_Exclusive_D will only
- * operate correctly if the internal data cache refill buffer is empty.  These
- * CACHE instructions should be separated from any potential data cache miss
- * by a load instruction to an uncached address to empty the response buffer."
- * (Revision 2.0 device errata from IDT available on http://www.idt.com/
- * in .pdf format.)
- */
-#ifndef R4600_V2_HIT_CACHEOP_WAR
-#error Check setting of R4600_V2_HIT_CACHEOP_WAR for your platform
-#endif
-
-/*
- * When an interrupt happens on a CP0 register read instruction, CPU may
- * lock up or read corrupted values of CP0 registers after it enters
- * the exception handler.
- *
- * This workaround makes sure that we read a "safe" CP0 register as the
- * first thing in the exception handler, which breaks one of the
- * pre-conditions for this problem.
- */
-#ifndef R5432_CP0_INTERRUPT_WAR
-#error Check setting of R5432_CP0_INTERRUPT_WAR for your platform
-#endif
-
-/*
- * Workaround for the Sibyte M3 errata the text of which can be found at
- *
- *   http://sibyte.broadcom.com/hw/bcm1250/docs/pass2errata.txt
- *
- * This will enable the use of a special TLB refill handler which does a
- * consistency check on the information in c0_badvaddr and c0_entryhi and
- * will just return and take the exception again if the information was
- * found to be inconsistent.
- */
-#ifndef BCM1250_M3_WAR
-#error Check setting of BCM1250_M3_WAR for your platform
-#endif
-
-/*
- * This is a DUART workaround related to glitches around register accesses
- */
-#ifndef SIBYTE_1956_WAR
-#error Check setting of SIBYTE_1956_WAR for your platform
-#endif
-
-/*
- * Fill buffers not flushed on CACHE instructions
- *
- * Hit_Invalidate_I cacheops invalidate an icache line but the refill
- * for that line can get stale data from the fill buffer instead of
- * accessing memory if the previous icache miss was also to that line.
- *
- * Workaround: generate an icache refill from a different line
- *
- * Affects:
- *  MIPS 4K		RTL revision <3.0, PRID revision <4
- */
-#ifndef MIPS4K_ICACHE_REFILL_WAR
-#error Check setting of MIPS4K_ICACHE_REFILL_WAR for your platform
-#endif
-
-/*
- * Missing implicit forced flush of evictions caused by CACHE
- * instruction
- *
- * Evictions caused by a CACHE instructions are not forced on to the
- * bus. The BIU gives higher priority to fetches than to the data from
- * the eviction buffer and no collision detection is performed between
- * fetches and pending data from the eviction buffer.
- *
- * Workaround: Execute a SYNC instruction after the cache instruction
- *
- * Affects:
- *   MIPS 5Kc,5Kf	RTL revision <2.3, PRID revision <8
- *   MIPS 20Kc		RTL revision <4.0, PRID revision <?
- */
-#ifndef MIPS_CACHE_SYNC_WAR
-#error Check setting of MIPS_CACHE_SYNC_WAR for your platform
-#endif
-
-/*
- * From TX49/H2 manual: "If the instruction (i.e. CACHE) is issued for
- * the line which this instruction itself exists, the following
- * operation is not guaranteed."
- *
- * Workaround: do two phase flushing for Index_Invalidate_I
- */
-#ifndef TX49XX_ICACHE_INDEX_INV_WAR
-#error Check setting of TX49XX_ICACHE_INDEX_INV_WAR for your platform
-#endif
-
-/*
- * On the RM9000 there is a problem which makes the CreateDirtyExclusive
- * eache operation unusable on SMP systems.
- */
-#ifndef RM9000_CDEX_SMP_WAR
-#error Check setting of RM9000_CDEX_SMP_WAR for your platform
-#endif
-
-/*
- * The RM7000 processors and the E9000 cores have a bug (though PMC-Sierra
- * opposes it being called that) where invalid instructions in the same
- * I-cache line worth of instructions being fetched may case spurious
- * exceptions.
- */
-#ifndef ICACHE_REFILLS_WORKAROUND_WAR
-#error Check setting of ICACHE_REFILLS_WORKAROUND_WAR for your platform
-#endif
-
-/*
- * On the R10000 upto version 2.6 (not sure about 2.7) there is a bug that
- * may cause ll / sc and lld / scd sequences to execute non-atomically.
- */
-#ifndef R10000_LLSC_WAR
-#error Check setting of R10000_LLSC_WAR for your platform
-#endif
-
-/*
- * 34K core erratum: "Problems Executing the TLBR Instruction"
- */
-#ifndef MIPS34K_MISSED_ITLB_WAR
-#error Check setting of MIPS34K_MISSED_ITLB_WAR for your platform
-#endif
-
-#endif /* _ASM_WAR_H */