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2014-05-24MIPS: MT: Remove SMTC supportRalf Baechle64-4096/+71
Nobody is maintaining SMTC anymore and there also seems to be no userbase. Which is a pity - the SMTC technology primarily developed by Kevin D. Kissell <kevink@paralogos.com> is an ingenious demonstration for the MT ASE's power and elegance. Based on Markos Chandras <Markos.Chandras@imgtec.com> patch https://patchwork.linux-mips.org/patch/6719/ which while very similar did no longer apply cleanly when I tried to merge it plus some additional post-SMTC cleanup - SMTC was a feature as tricky to remove as it was to merge once upon a time. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2014-05-23MIPS: Fix a typo error in AUDIT_ARCH definitionHuacai Chen1-1/+1
Missing a "|" in AUDIT_ARCH_MIPSEL64N32 macro definition. Signed-off-by: Huacai Chen <chenhc@lemote.com> Reviewed-by: Markos Chandras <markos.chandras@imgtec.com> Cc: John Crispin <john@phrozen.org> Cc: Steven J. Hill <Steven.Hill@imgtec.com> Cc: Aurelien Jarno <aurelien@aurel32.net> Cc: linux-mips@linux-mips.org Cc: Fuxin Zhang <zhangfx@lemote.com> Cc: Zhangjin Wu <wuzhangjin@gmail.com> Patchwork: https://patchwork.linux-mips.org/patch/6978/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2014-05-23MIPS: RM9000: Remove the now unused CPU_RM9000 definition.Ralf Baechle1-1/+1
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2014-05-23MIPS: RM9000: Remove support for probing the CPU core.Ralf Baechle1-15/+0
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2014-05-23MIPS: RM9000: Remove support for idle loop.Ralf Baechle1-4/+0
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2014-05-23MIPS: Ralink: Remove surviving RM9000 bits.Ralf Baechle1-1/+0
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2014-05-23MIPS: Remove code protected by CONFIG_SYS_HAS_CPU_RM9000.Ralf Baechle1-3/+0
RM9000 support was removed a while ago but this bit crept back in through commit 69f24d17 [MIPS: Optimize current_cpu_type() for better code.] which had been developed before but merged after RM9000 support was removed. Signed-off-by: Ralf Baechle <ralf@linux-mips.org> Reported-by: Paul Bolle <pebolle@tiscali.nl>
2014-05-23MIPS: BCM1480: Remove checks for CONFIG_SIBYTE_BCM1480_PROFPaul Bolle1-11/+0
There are two checks for CONFIG_SIBYTE_BCM1480_PROF in the tree since v2.6.15. The related Kconfig symbol has never been added to the tree. So these checks have always evaluated to false. Besides, one of these checks guards a call of sbprof_cpu_intr(). But that function is not defined. Remove all this. Signed-off-by: Paul Bolle <pebolle@tiscali.nl> Cc: linux-mips@linux-mips.org Cc: linux-kernel@vger.kernel.org Patchwork: https://patchwork.linux-mips.org/patch/6981/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2014-05-23MIPS: MSP71xx: Remove checks for two macrosPaul Bolle4-210/+0
Since v2.6.39 there are checks for CONFIG_MSP_HAS_DUAL_USB and checks for CONFIG_MSP_HAS_TSMAC in the code. The related Kconfig symbols have never been added. These checks have evaluated to false for three years now. Remove them and the code they have been hiding. Signed-off-by: Paul Bolle <pebolle@tiscali.nl> Cc: Alan Stern <stern@rowland.harvard.edu> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: linux-mips@linux-mips.org Cc: linux-usb@vger.kernel.org Cc: linux-kernel@vger.kernel.org Patchwork: https://patchwork.linux-mips.org/patch/6982/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2014-05-23MIPS: Octeon: Remove checks for CONFIG_CAVIUM_GDBPaul Bolle3-29/+0
Three checks for CONFIG_CAVIUM_GDB were added in v2.6.29. But the Kconfig symbol CAVIUM_GDB was never added to the tree. Remove these checks. Also remove the last reference to octeon_get_boot_debug_flag(). There is no definition of that function anyway. Signed-off-by: Paul Bolle <pebolle@tiscali.nl> Tested-by: Andreas Herrmann <andreas.herrmann@caviumnetworks.com>) Cc: linux-mips@linux-mips.org Cc: linux-kernel@vger.kernel.org Patchwork: https://patchwork.linux-mips.org/patch/6976/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2014-05-23MIPS: PNX833x: Remove checks for CONFIG_I2C_PNX0105Paul Bolle1-73/+0
Checks for CONFIG_I2C_PNX0105 were added in v2.6.28. But the related Kconfig symbol has not been added to the tree. Remove these checks. Signed-off-by: Paul Bolle <pebolle@tiscali.nl> Cc: linux-mips@linux-mips.org Cc: linux-kernel@vger.kernel.org Patchwork: https://patchwork.linux-mips.org/patch/6958/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2014-05-23MIPS: Remove CONFIG_PMCTWILED completelyPaul Bolle1-9/+0
Commit 8b284dbc2200 ("MIPS: PNX Removing dead CONFIG_PMCTWILED") missed one reference to CONFIG_PMCTWILED in the code. It also missed one related reference to pmctwiled_setup(). Remove these references now. Signed-off-by: Paul Bolle <pebolle@tiscali.nl> Cc: linux-mips@linux-mips.org Cc: linux-kernel@vger.kernel.org Patchwork: https://patchwork.linux-mips.org/patch/6957/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2014-05-23MIPS: Remove check for CONFIG_CAVIUM_REPORT_SINGLE_BIT_ECCPaul Bolle1-6/+0
A check for CONFIG_CAVIUM_REPORT_SINGLE_BIT_ECC was added in v2.6.29, but without the related Kconfig symbol. Remove this check. Also remove the test for an "ecc_verbose" kernel parameter. It is undocumented and has no effect anyway. Signed-off-by: Paul Bolle <pebolle@tiscali.nl> Cc: linux-mips@linux-mips.org Cc: linux-kernel@vger.kernel.org Patchwork: https://patchwork.linux-mips.org/patch/6955/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2014-05-23MIPS: c-r4k: Call R4600_HIT_CACHEOP_WAR_IMPL only for 32 byte cache lines.Ralf Baechle1-1/+0
R4600_HIT_CACHEOP_WAR_IMPL is only needed on R4600 v1.6 and the R4600 has data cache lines that are always 32 bytes so the call is pointless in r4k_blast_dcache_page_dc64. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2014-05-23MIPS: math-emu: Reduce microMIPS bloat.Ralf Baechle1-0/+7
Move microMIPS32_to_MIPS32() to a separate file which only gets built for mipsMIPS configurations; for other configurations the optimizer eleminates calls to microMIPS32_to_MIPS32(). Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2014-05-23MIPS: math-emu: Switch to using the MIPS rounding modes.Ralf Baechle15-91/+63
Previously math-emu was using the IEEE-754 constants internally. These were differing by having the constants for rounding to +/- infinity switched, so a conversion was necessary. This would be entirely avoidable if the MIPS constants were used throughout, so get rid of the bloat. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2014-05-23MIPS: math-emu: Nuke alternative names for IEEE-754 rounding modes.Ralf Baechle3-6/+2
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2014-05-23MIPS: Sort out mm_isBranchInstr.Ralf Baechle3-201/+214
mm_isBranchInstr() did reside in the math emu code even though it logically is separate and also is used outside the math emu code. In addition GCC 4.9.0 leaves the following unnnecessarily bloated function body for a non-microMIPS configuration: <mm_isBranchInstr>: 105c: afa50004 sw a1,4(sp) 1060: afa60008 sw a2,8(sp) 1064: afa7000c sw a3,12(sp) 1068: 03e00008 jr ra 106c: 00001021 move v0,zero which stores arguments that are never going to be used on the stack frame. Move mm_isBranchInstr() from cp1emu.c to branch.c, then split mm_isBranchInstr() into a __mm_isBranchInstr() core and a mm_isBranchInstr() wrapper inline function which only invokes __mm_isBranchInstr() on microMIPS configurations. This shaves off 112 bytes off the kernel and improves code flow a bit. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2014-05-23MIPS: Disable MIPS16/microMIPS crap for platforms not supporting these ASEs.Ralf Baechle3-1/+26
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2014-05-23MIPS: math-emu: Inline fpu_emulator_init_fpu()Ralf Baechle4-46/+21
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2014-05-23MIPS: math-emu: Cleanup coding style.Ralf Baechle34-641/+497
o Only define variables in the outermost block o One empty line at most o Format comments as per CodingStyle o Update FSF address in licensing term comment o Spell FPU and MIPS in all capitals. o Remove ####-type of lines in comments. o Try to make things a bit most consistent between sp_*.c / dp_*.c files. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2014-05-23MIPS: math-emu: Cleanup definition of structs describe sp/dp floats.Ralf Baechle5-80/+67
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2014-05-23MIPS: math-emu: Rename get_rounding() functions.Ralf Baechle2-10/+10
There are two version of get_rounding(), one for single precision, one for double precision. Add a ieee754sp_ rsp. ieee754dp_ prefix for clarity. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2014-05-23MIPS: math-emu: Get rid of the useless parts of exception handling.Ralf Baechle32-263/+92
All it really did was throw a printk for no obvious reason. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2014-05-23MIPS: math-emu: Move various objects into an ar library.Ralf Baechle3-7/+8
ieee754d.o contains only debug code and dp_sqrt.o and sp_sqrt.o contain code which for MIPS I/II/III systems we don't want to link. Again the savings can be considerable for some systems: $ mips-linux-size --totals ieee754d.o dp_sqrt.o sp_sqrt.o text data bss dec hex filename 1624 0 0 1624 658 ieee754d.o 2016 0 0 2016 7e0 dp_sqrt.o 736 0 0 736 2e0 sp_sqrt.o 4376 0 0 4376 1118 (TOTALS) Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2014-05-23MIPS: math-emu: Inline ieee754sp_issnan and ieee754dp_issnan.Ralf Baechle4-4/+2
Shaves another 16 bytes off but more importantly avoids function calls. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2014-05-23MIPS: math-emu: Remove unused code.Ralf Baechle21-699/+6
Shrinks the FPU emulator by 4528 bytes. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2014-05-23MIPS: math-emu: Remove unused ieee754sp_bestnan() and ieee754dp_bestnan().Ralf Baechle4-26/+0
Both are unused since lmo commit fdffbafbb38723618626c70ffdc6ff9175cdffa2 [Lots of FPU bug fixes from Kjeld Borch Egevang.] Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2014-05-23MIPS: math-emu: Inline ieee754dp_finite and ieee754dp_finite().Ralf Baechle5-12/+10
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2014-05-23MIPS: math-emu: Eleminate duplicate definitions of identical macros.Ralf Baechle8-63/+33
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2014-05-23MIPS: math-emu: Use SPSIGN() rather than DPSIGN() in ieee754sp_sub().Ralf Baechle1-1/+1
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2014-05-23MIPS: math-emu: Replace DP_MBITS with DP_FBITS and SP_MBITS with SP_FBITS.Ralf Baechle25-100/+100
Both were defined as 23 rsp. 52 though the mentissa is actually a bit more than the fraction. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2014-05-23MIPS: math-emu: Call ieee754di_xcpt, not ieee754si_xcpt in ieee754dp_cmp.Ralf Baechle1-1/+1
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2014-05-23MIPS: math-emu: Cleanup stdarg usage including apparently bogus comment.Ralf Baechle4-8/+4
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2014-05-23MIPS: math-emu: Remove #if 1 and dead code from its #else branch.Ralf Baechle1-10/+0
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2014-05-23MIPS: math-emu: Cleanup ieee754si_indef() / ieee754di_indef().Ralf Baechle1-6/+10
LONG_LONG_MAX is a symbol defined in <limits.h> which may not be available so better rely on something provided by a kernel header. While at it, turn these function-like macros into inline functions. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2014-05-23MIPS: math-emu: Convert debug printks to pr_debug getting.Ralf Baechle2-16/+9
And another bunch of #ifdefs bite the dust. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2014-05-23MIPS: math-emu: Get rid of unuable extended precision support.Ralf Baechle1-3/+0
No usable functionality and nothig does ever define IEEE854_XP anyway. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2014-05-23MIPS: IP22: This platform may come with either MIPS III or MIPS IV CPUs.Ralf Baechle1-0/+4
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2014-05-21MIPS: math-emu: Remove most ifdefery.Ralf Baechle3-82/+144
Most of these tests should be runtime tests. This also finally means that on a MIPS III systems MIPS IV opcodes are going to result in an exception as they're supposed to. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2014-05-21MIPS: math-emu: Turn macros into functions where possible.Ralf Baechle39-131/+143
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2014-05-21MIPS: math-emu: Harden ieee754int.h against multiple inclusion.Ralf Baechle1-1/+4
The header file had no include guards; this only happened to work because the file only contains macro definitions and protypes. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2014-05-21MIPS: math-emu: Reformat code according to coding style.Ralf Baechle7-133/+140
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2014-05-21MIPS: math-emu: Move all debug fs code to a separate file.Ralf Baechle3-56/+62
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2014-05-21MIPS: math-emu: Remove fine example of cargo cult programming.Ralf Baechle1-7/+0
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2014-05-21MIPS: math-emu: Header file weeding.Ralf Baechle7-29/+12
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2014-05-21MIPS: branch: Make inclusion of <asm/branch.h> safe.Ralf Baechle1-0/+2
It was relying on other headers having been included before. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2014-05-21MIPS: math-emu: Use helpers to manipulate CAUSEF_BD flag.Ralf Baechle2-8/+8
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2014-05-21MIPS: branch: New helpers to modify branch delay slot flag in struct pt_regsRalf Baechle1-0/+10
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2014-05-21MIPS: math-emu: Get rid of typedefs.Ralf Baechle40-212/+212
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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