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2008-10-11MIPS: Move headfiles to new location below arch/mips/includeRalf Baechle1-574/+0
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2008-10-03[MIPS] SMTC: Close tiny holes in the SMTC IPI replay system.Kevin D. Kissell1-11/+61
Signed-off-by: Kevin D. Kissell <kevink@paralogos.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2008-01-29[MIPS] R4000/R4400 daddiu erratum workaroundMaciej W. Rozycki1-0/+9
This complements the generic R4000/R4400 errata workaround code and adds bits for the daddiu problem. In most places it just modifies handwritten assembly code so that the assembler is allowed to use a temporary register as daddiu may now be treated as a macro that expands to a sequence of li and daddu. It is the AT register or, where AT is unavailable or used explicitly for another purpose, an explicitly-named register is selected, using the .set at=<reg> feature added recently to gas. This feature is only used if CONFIG_CPU_DADDI_WORKAROUNDS has been set, so if the workaround remains disabled, the required version of binutils stays unchanged. Similarly, daddiu instructions put in branch delay slots in noreorder fragments are now taken out of them and the assembler is allowed to reorder them itself as possible (which it does making the whole idea of scheduling them into delay slots manually questionable). Also in the very few places where such a simple conversion was not possible, a handcoded longer sequence is implemented. Other than that there are changes to code responsible for building the TLB fault and page clear/copy handlers to avoid daddiu as appropriate. These are only effective if the erratum is verified to be present at the run time. Finally there is a trivial update to __delay(), because it uses daddiu in a branch delay slot. Signed-off-by: Maciej W. Rozycki <macro@linux-mips.org> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-10-11[MIPS] checkfiles: Fix "need space after that ','" errors.Ralf Baechle1-4/+4
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-10-11[MIPS] Rename CONFIG_BUILD_ELF64 into KBUILD_64BIT_SYM32Franck Bui-Huu1-6/+6
This patch renames it for 3 reasons: - "CONFIG" pattern is used by Kconfig. Now this macro is no more defined by Kconfig but by Kbuild itself make this clear by translating "CONFIG" into "KBUILD". - "ELF32" word is improper because it is irrelevant to ELF format and it makes confusion with CONFIG_BOOT_ELF32. So translate it with SYM32. - Add "64BIT" part to make clear that this macro implies a 64 bits kernel. Signed-off-by: Franck Bui-Huu <fbuihuu@gmail.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-06-11[MIPS] Fix KMODE for the R3000Maciej W. Rozycki1-24/+28
This must be the oldest bug that we have got. Leaving interrupts "as they are" for the R3000 obviously means copying IEp to IEc. Since we have got STATMASK now, I took this opportunity to mask the status register "correctly" for the R3000 now too. Oh, and the R3000 hardly ever is 64-bit. Signed-off-by: Maciej W. Rozycki <macro@linux-mips.org> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-02-22[MIPS] Add basic SMARTMIPS ASE supportFranck Bui-Huu1-6/+24
This patch adds trivial support for SMARTMIPS extension. This extension is currently implemented by 4KS[CD] CPUs. Basically it saves/restores ACX register, which is part of the SMARTMIPS ASE, when needed. This patch does *not* add any support for Smartmips MMU features. Futhermore this patch does not add explicit support for 4KS[CD] CPUs since they are respectively mips32 and mips32r2 compliant. So with the current processor configuration, a platform that has such CPUs needs to select both configs: CPU_HAS_SMARTMIPS SYS_HAS_CPU_MIPS32_R[12] This is due to the processor configuration which is mixing up all the architecture variants and the processor types. The drawback of this, is that we currently pass '-march=mips32' option to gcc when building a kernel instead of '-march=4ksc' for 4KSC case. This can lead to a kernel image a little bit bigger than required. Signed-off-by: Franck Bui-Huu <fbuihuu@gmail.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-10-11[MIPS] Optimize and cleanup get_saved_sp, set_saved_spAtsushi Nemoto1-45/+19
If CONFIG_BUILD_ELF64 was not selected and gcc had -msym32 option (i.e. 4.0 or newer), there is no point to use %highest, %higher for kernel symbols. This patch also fixes 64-bit SMTC version of get_saved_sp() which is broken but harmless since there is no such CPUs for now. A bonus is set_saved_sp() and SMP version of get_saved_sp() are more readable now. Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-06-29[MIPS] Fix use of ehb instruction for non-R2 configurations.Ralf Baechle1-8/+8
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-04-26Don't include linux/config.h from anywhere else in include/David Woodhouse1-1/+0
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2006-04-19[MIPS] MT: Improved multithreading support.Ralf Baechle1-3/+184
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-03-21[MIPS] Remove CONFIG_BUILD_ELF64.Ralf Baechle1-17/+3
This option is no longer usable with supported compilers. It will be replaced by usage of -msym32 in a separate patch. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2005-10-29Fix get_saved_sp for 64bit address space. Simplify set_save_sp.Thiemo Seufer1-5/+9
Signed-off-by: Ralf Baechle <ralf@linux-mips.org> Signed-off-by: Thiemo Seufer <ths@networkno.de>
2005-10-29Fix 64bit SMP TLB handler and stack frame handling, optimize 32bit SMPThiemo Seufer1-6/+4
TLB handlers a bit, match definitions in pgtable-{32,64}.h better. Signed-off-by: Thiemo Seufer <ths@networkno.de> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2005-10-29Rewrite to avoid the use of $at. Unfortunately binutils 2.15 and CVSRalf Baechle1-1/+6
binutils are broken and don't warn about this use of $at even though gas is in .set noat mode so this for now is an accident waiting to happen. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2005-09-09kbuild: mips use generic asm-offsets.h supportSam Ravnborg1-1/+1
Removed obsolete stuff from arch makefile. mips had a special rule for generating asm-offsets.h so preserved it using an architecture specific hook in top-level Kbuild file. Renamed .h file to asm-offsets.h Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2005-09-05[PATCH] mips: clean up 32/64-bit configurationRalf Baechle1-11/+11
Start cleaning 32-bit vs. 64-bit configuration. Signed-off-by: Ralf Baechle <ralf@linux-mips.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-04-16Linux-2.6.12-rc2Linus Torvalds1-0/+346
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
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