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2007-10-14kbuild: enable 'make CFLAGS=...' to add additional options to CCSam Ravnborg
The variable CFLAGS is a wellknown variable and the usage by kbuild may result in unexpected behaviour. On top of that several people over time has asked for a way to pass in additional flags to gcc. This patch replace use of CFLAGS with KBUILD_CFLAGS all over the tree and enabling one to use: make CFLAGS=... to specify additional gcc commandline options. One usecase is when trying to find gcc bugs but other use cases has been requested too. Patch was tested on following architectures: alpha, arm, i386, x86_64, mips, sparc, sparc64, ia64, m68k Test was simple to do a defconfig build, apply the patch and check that nothing got rebuild. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2007-10-11[MIPS] VPE: reimplement ELF loader.Ralf Baechle
Loading ELF binaries based on the section table is totally wrong. This still leaves the other fat bug of referencing symbols in an executable unfixed, so people better don't run strip on their binaries ... As added bonus the new loader is also 23 lines shorter. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-10-11[MIPS] Add BUG_ON assertion for attempt to run kernel on the wrong CPU type.Franck Bui-Huu
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-10-11[MIPS] SMP: Use ISO C struct initializer for local structs.Ralf Baechle
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-10-11[MIPS] SMP: Kill useless casts.Ralf Baechle
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-10-11[MIPS] Kill num_online_cpus() loops.Ralf Baechle
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-10-11[MIPS] SMP: Implement smp_call_function_mask().Ralf Baechle
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-10-11[MIPS] Make facility to convert CPU types to strings generally available.Ralf Baechle
So far /proc/cpuinfo has been the only user but human readable processor name are more useful than that for proc. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-10-11[MIPS] checkfiles: Fix "need space after that ','" errors.Ralf Baechle
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-10-11[MIPS] Fix "no space between function name and open parenthesis" warnings.Ralf Baechle
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-10-11[MIPS] Allow hardwiring of the CPU type to a single type for optimization.Ralf Baechle
This saves a few k on systems which only ever ship with a single CPU type. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-10-11[MIPS] i8253 PIT clocksource and clockevent driversRalf Baechle
Derived from the i386 variant with a few x86 complexities chopped off. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-10-11[MIPS] Dyntick support for SMTC:Ralf Baechle
The kernel currently only supports broadcasting of the timer interrupt from a single timer, not multicasting into two multicast groups of processors. So the implemented mechanism for SMTC works by broadcasting the cp0 compare interrupt on VPE 0 and ignoring it on any additional VPEs. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-10-11[MIPS] Implement clockevents for R4000-style cp0 count/compare interruptRalf Baechle
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-10-11[MIPS] Consolidate all variants of MIPS cp0 timer interrupt handlers.Ralf Baechle
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-10-11[MIPS] Switch from to_tm to rtc_time_to_tmRalf Baechle
This replaces the MIPS-specific to_tm function with the generic rtc_time_to_tm function. The big difference between the two functions is that rtc_time_to_tm uses epoch 70 while to_tm uses 1970, so the result of rtc_time_to_tm needs to be fixed up. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-10-11[MIPS] Deforest the function pointer jungle in the time code.Ralf Baechle
Hard to follow who is pointing what to where and why so it's simply getting in the way of the time code renovation. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-10-11[MIPS] Use generic NTP code for all MIPS platformsRalf Baechle
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-10-11[MIPS] ARC: Get rid of mips_machgroupRalf Baechle
This has not been any serious user of this ill conceived thing since the original invention in like '95. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-10-11[MIPS] Sibyte: Replace SB1 cachecode with standard R4000 class cache code.Ralf Baechle
It may not be perfect yet but the SB1 code is badly borken and has horrible performance issues. Downside: This seriously breaks support for pass 1 parts of the BCM1250 where indexed cacheops don't work quite reliable but I seem to be the last one on the planet with a pass 1 part anyway. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-10-11[MIPS] R3000 setup for kernel_thread()Maciej W. Rozycki
Match the R4000 semantics for the initial state of interrupt/kernel status register flags for the R3000 in kernel_thread(). Signed-off-by: Maciej W. Rozycki <macro@linux-mips.org> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-10-11[MIPS] Introduce a consistent style for vmlinux.lds.Sam Ravnborg
This style will be consitent with all other arch's - soon. In addition: - Moved a few labels inside brackets for the sections they specify to prevent that linker alignmnet made them point before the section start Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-10-11[MIPS] Add GT641xx IRQ routines.Yoichi Yuasa
Signed-off-by: Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-10-11[MIPS] i8295 cleanups.Yoichi Yuasa
o Move i8259 function declarations to include/asm-mips/i8259.h o Make i8259.c functions static where possible. Signed-off-by: Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-10-11[MIPS] Kill useless volatile keywordRalf Baechle
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-10-11[MIPS] cleanup struct irqaction initializersThomas Gleixner
Signed-off-by: Thomas Gleixner <tglx@linutronix.de> CC: Ralf Baechle <ralf@linux-mips.org> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-10-11[MIPS] Add support for BCM47XX CPUs.Aurelien Jarno
Note that the BCM4710 does not support the wait instruction, this is not a mistake in the code. It originally comes from the OpenWrt patches. Cc: Michael Buesch <mb@bu3sch.de> Cc: Felix Fietkau <nbd@openwrt.org> Cc: Florian Schirmer <jolt@tuxbox.org> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-10-11[MIPS] SMTC: Microoptimize atomic_postincrement for non-weak consistency.Ralf Baechle
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-10-11[MIPS] IRQ Affinity Support for SMTC on Malta PlatformKevin D. Kissell
Signed-off-by: Kevin D. Kissell <kevink@mips.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-10-01[MIPS] vmlinux.lds.S: Handle note sectionsMaciej W. Rozycki
Store any note sections after the exception tables like the other architectures do. This is required for .note.gnu.build-id emitted from binutils 2.18 onwards if nothing else. Signed-off-by: Maciej W. Rozycki <macro@linux-mips.org> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-09-28[MIPS] Fix fallocate on o32 binary compat ABIKyle McMartin
MIPS was mistakenly forgetting to use the fallocate compat wrapper, which I noticed while cleaning up all the duplicate fallocate wrappers. Signed-off-by: Kyle McMartin <kyle@mcmartin.ca> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-09-24[MIPS] SMTC: Make ack_bad_irq() safe with no IM backstop.Ralf Baechle
Issue reported and original patch by Kevin Kissel, cleaner (imho) implementation by me. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-09-19[MIPS] cpu-bugs64.c: GCC 3.3 constraint workaroundMaciej W. Rozycki
Add a workaround to address warnings generated on the "n" constraint by GCC 3.3 and below. Signed-off-by: Maciej W. Rozycki <macro@linux-mips.org> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-09-14[MIPS] 20Kc: Disable use of WAIT instruction.Ralf Baechle
Another issue with 20Kc's WAIT, waiting for more details. With the 2.6.23 release immindent simply disable the use of WAIT instead of a more fancy workaround. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-09-14[MIPS] Add #include <linux/profile.h> to arch/mips/kernel/time.cYoichi Yuasa
It refer to CPU_PROFILING. arch/mips/kernel/time.c: In function 'local_timer_interrupt': arch/mips/kernel/time.c:142: error: implicit declaration of function 'profile_tick' arch/mips/kernel/time.c:142: error: 'CPU_PROFILING' undeclared (first use in this function) arch/mips/kernel/time.c:142: error: (Each undeclared identifier is reported only once arch/mips/kernel/time.c:142: error: for each function it appears in.) Signed-off-by: Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-09-14[MIPS] N32 needs to use compat_sys_futimesatJohannes Dickgreber
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-09-14[MIPS] rtlx: Fix build error.Ralf Baechle
CC arch/mips/kernel/rtlx.o cc1: warnings being treated as errors arch/mips/kernel/rtlx.c:59: warning: 'irq' defined but not used arch/mips/kernel/rtlx.c:60: warning: 'irq_num' defined but not used Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-09-14[MIPS] rtlx: fix int vs. long bug.Ralf Baechle
CC arch/mips/kernel/rtlx.o arch/mips/kernel/rtlx.c: In function 'rtlx_init': arch/mips/kernel/rtlx.c:114: warning: format '%x' expects type 'unsigned int', but argument 3 has type 'long unsigned int' Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-09-10[MIPS] i8259: Add disable method.Kyungmin Park
After 76d2160147f43f982dfe881404cfde9fd0a9da21, the qemu NE2000 was frequently producing WATCHDOG timeouts. Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: Ingo Molnar <mingo@elte.hu> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-08-27[MIPS] Maintain si_code field properly for FP exceptionsThiemo Seufer
The appended patch adds code to update siginfo_t's si_code field. It fixes e.g. a floating point overflow regression in the SBCL testsuite. Signed-off-By: Thiemo Seufer <ths@linux-mips.org> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-08-27[MIPS] SMTC: Fix duplicate status dumps on NMIThiemo Seufer
Also removes the while(1); loop by propagating the ATTRIB_NORET of die() to nmi_exception_handler. Signed-off-by: Thiemo Seufer <ths@networkno.de> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-08-27[MIPS] Unconditionally writeback and invalidate caches on kexec.Nicolas Schichan
Signed-off-by: Nicolas Schichan <nschichan@freebox.fr> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-08-27[MIPS] Fix gcc 3.3 warning.Ralf Baechle
CC arch/mips/kernel/cpu-bugs64.o arch/mips/kernel/cpu-bugs64.c: In function 'align_mod': arch/mips/kernel/cpu-bugs64.c:23: warning: asm operand 0 probably doesn't match constraints arch/mips/kernel/cpu-bugs64.c:23: warning: asm operand 1 probably doesn't match constraints Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-08-27[MIPS] Fix invalid semicolon after if statementIlpo Järvinen
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@helsinki.fi> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-08-27[MIPS] MT: Use kallsyms in CPU state dumpRalf Baechle
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-08-27[MIPS] SMTC: Move MIPS_CPU_IPI_IRQ definition into header.Ralf Baechle
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-08-27[MIPS] SMP: Scatter __cpuinit over the code as needed.Ralf Baechle
MIPS doesn't do CPU hotplugging yet but since many of the functions don't even have an __init let's fix this right. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-08-27[MIPS] Remove dead code from irq_txx9.cAtsushi Nemoto
Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-08-27[MIPS] Do not discard extra debugging sections.Daniel Jacobowitz
Leaving these sections is useful to some tools that look at the image, and none of them are loaded into memory. The .mdebug.abi64 section, in particular, lets GDB recognize vmlinux.32 as an N64 program instead of guessing that it is O32. Signed-off-by: Daniel Jacobowitz <dan@codesourcery.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-08-27[MIPS] The irq_chip for TX39/TX49 SoCsAtsushi Nemoto
Add generic irq_chip for TX39/TX49 SoCs. This can be replace jmr3927_irq_irc, tx4927_irq_pic_type and tx4938_irq_pic_type. Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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