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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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
Unfortunately this update became bigger than previous pull requests,
which is almost a pattern in rc5-6. But, the only obvious big changes
are for the new Intel DSP ASoC drivers, so the impact must be fairly
limited.
Other than that, usual small fixes in various fields: HD-audio, ASoC
core and ASoC fsl and codec drivers.
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Merge tag 'sound-3.15-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
Pull sound fixes from Takashi Iwai:
"Unfortunately this update became bigger than previous pull requests,
which is almost a pattern in rc5-6. But, the only obvious big changes
are for the new Intel DSP ASoC drivers, so the impact must be fairly
limited.
Other than that, usual small fixes in various fields: HD-audio, ASoC
core and ASoC fsl and codec drivers"
* tag 'sound-3.15-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (26 commits)
ALSA: sb_mixer: missing return statement
ASoC: wm8962: Update register CLASS_D_CONTROL_1 to be non-volatile
ASoC: Intel: Fix Baytrail SST DSP firmware loading
ALSA: hda - mask buggy stream DMA0 for Broadwell display controller
ALSA: hda - Add new GPU codec ID to snd-hda
ASoC: fsl_esai: Set PCRC and PRRC registers at the end of hw_params()
ASoC: fsl_esai: Only bypass sck_div for EXTAL source
ASoC: fsl_esai: Fix incorrect condition within ratio range check for FP
ASoC: dapm: Fix SUSPEND -> OFF bias sequence
ASoC: dapm: Skip CODEC<->CODEC links in connect_dai_link_widgets()
ASoC: pcm: Fix incorrect condition check for case SNDRV_PCM_TRIGGER_SUSPEND
ALSA: hda - add headset mic detect quirks for three Dell laptops
ASoC: Update Cirrus Logic CODEC maintainers.
ASoC: Intel: Fix block offset calculations.
ASoC: Intel: Fix check for pdata usage before dereference.
ASoC: Intel: Fix stream position pointer.
ASoC: Intel: Fix allow hw_params to be called more than once.
ASoC: Intel: Fix Audio DSP usage when IOMMU is enabled.
ASoC: Intel: Fix Haswell/Broadwell DSP page table creation.
ASoC: Intel: Fix allocated block list usage when adding blocks.
...
Pull MIPS fixes from Ralf Baechle:
"MIPS fixes for various loose ends:
- Fix workarounds for R4000 erratum.
- Patch up DEC, Siemens-Nixdorf and Loongson hardware support.
- Wire up renameat2 syscall.
- Delete unused file - it was causing false warnings from maintenance
scripts.
- Revert a patch because it's functionality is now implemented twice
which causes superfluous /proc/cpuinfo output.
- Fix a microMIPS regression"
* 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus:
MIPS: mm: Fix broken microMIPS kernel regression.
MIPS: Add new AUDIT_ARCH token for the N32 ABI on MIPS64
MIPS: Wire up renameat2 syscall.
MIPS: inst.h: Rename BITFIELD_FIELD to __BITFIELD_FIELD.
MIPS: Remove file missed when removing rm9k support a while ago.
MIPS/loongson2_cpufreq: Fix CPU clock rate setting
MIPS: Loongson: No need to select GENERIC_HARDIRQS_NO__DO_IRQ
MIPS: csum_partial.S CPU_DADDI_WORKAROUNDS bug fix
MIPS: __strncpy_from_user_asm CPU_DADDI_WORKAROUNDS bug fix
MIPS: __delay CPU_DADDI_WORKAROUNDS bug fix
MIPS: DEC/SNI: O32 wrapper stack switching fixes
MIPS: DEC: Bus error handler <asm/cpu-type.h> fixes
MAINTAINERS: TURBOchannel: Update entry
Revert "MIPS: MT: proc: Add support for printing VPE and TC ids"
Pull parisc fixes from Helge Deller:
"There are two patches in here:
The first patch greatly improves latency and corrects the memory
ordering in our light-weight atomic locking syscall.
The second patch ratelimits printing of userspace segfaults in the
same way as it's done on other platforms. This fixes a possible DOS
on parisc since it prevents the syslog to grow too fast. For example,
when the debian acl2 package was built on our debian buildd servers,
this package produced lots of gigabytes in syslog in very short time
and thus filled our harddisks, which then turned the server nearly
completely unaccessible and unresponsive"
* 'parisc-3.15-4' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux:
parisc: Improve LWS-CAS performance
parisc: ratelimit userspace segfault printing
Support forced affinity setting)
- fix arm64 pud_huge() to return 0 when only 2 levels page tables are
used (__PAGETABLE_PMD_FOLDED defined and pmd_huge already covers block
entries at the first level), otherwise KVM gets confused
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Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
Pull two arm64 fixes from Catalin Marinas:
- arm64 migrate_irqs() fix following commit ffde1de640 (irqchip: Gic:
Support forced affinity setting)
- fix arm64 pud_huge() to return 0 when only 2 levels page tables are
used (__PAGETABLE_PMD_FOLDED defined and pmd_huge already covers
block entries at the first level), otherwise KVM gets confused
* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
arm64: fix pud_huge() for 2-level pagetables
arm64: use cpu_online_mask when using forced irq_set_affinity
Mostly fixes for metag and parisc relating to upgrowing stacks.
* Fix missing compiler barriers in metag memory barriers.
* Fix BUG_ON on metag when RLIMIT_STACK hard limit is increased beyond
safe value.
* Make maximum stack size configurable. This reduces the default user
stack size back to 80MB (especially on parisc after their removal of
_STK_LIM_MAX override). This only affects metag and parisc.
* Remove metag _STK_LIM_MAX override to match other arches and follow
parisc, now that it is safe to do so (due to the BUG_ON fix mentioned
above).
* Finally now that both metag and parisc _STK_LIM_MAX overrides have
been removed, it makes sense to remove _STK_LIM_MAX altogether.
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Merge tag 'metag-for-v3.15-2' of git://git.kernel.org/pub/scm/linux/kernel/git/jhogan/metag
Pull Metag architecture and related fixes from James Hogan:
"Mostly fixes for metag and parisc relating to upgrowing stacks.
- Fix missing compiler barriers in metag memory barriers.
- Fix BUG_ON on metag when RLIMIT_STACK hard limit is increased
beyond safe value.
- Make maximum stack size configurable. This reduces the default
user stack size back to 80MB (especially on parisc after their
removal of _STK_LIM_MAX override). This only affects metag and
parisc.
- Remove metag _STK_LIM_MAX override to match other arches and follow
parisc, now that it is safe to do so (due to the BUG_ON fix
mentioned above).
- Finally now that both metag and parisc _STK_LIM_MAX overrides have
been removed, it makes sense to remove _STK_LIM_MAX altogether"
* tag 'metag-for-v3.15-2' of git://git.kernel.org/pub/scm/linux/kernel/git/jhogan/metag:
asm-generic: remove _STK_LIM_MAX
metag: Remove _STK_LIM_MAX override
parisc,metag: Do not hardcode maximum userspace stack size
metag: Reduce maximum stack size to 256MB
metag: fix memory barriers
Pull drm/intel fixes from Dave Airlie:
"Just some intel fixes.
I have some radeon ones but I need to get some patches dropped from
the pull req"
* 'drm-fixes' of git://people.freedesktop.org/~airlied/linux:
drm/i915: Increase WM memory latency values on SNB
drm/i915: restore backlight precision when converting from ACPI
drm/i915: Use the first mode if there is no preferred mode in the EDID
drm/i915/dp: force eDP lane count to max available lanes on BDW
drm/i915/vlv: reset VLV media force wake request register
drm/i915/SDVO: For sysfs link put directory and target in correct order
drm/i915: use lane count and link rate from VBT as minimums for eDP
drm/i915: clean up VBT eDP link param decoding
drm/i915: consider the source max DP lane count too
Pull x86 fixes from Peter Anvin.
* 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86-64, modify_ldt: Make support for 16-bit segments a runtime option
x86, mm, hugetlb: Add missing TLB page invalidation for hugetlb_cow()
x86, rdrand: When nordrand is specified, disable RDSEED as well
Pull timer fix from Thomas Gleixner:
"A single bug fix for a long standing issue:
- Updating the expiry value of a relative timer _after_ letting the
idle logic select a target cpu for the timer based on its stale
expiry value is outright stupid. Thanks to Viresh for spotting the
brainfart"
* 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
hrtimer: Set expiry time before switch_hrtimer_base()
Pull irq fixes from Thomas Gleixner:
"Two small updates from the irq departement:
- Provide missing inline stub for a SMP only function
- Add sub-maintainer for the drivers/irqchip/ part of the irq
subsystem. YAY!"
* 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
MAINTAINERS: Add co-maintainer for drivers/irqchip
genirq: Provide irq_force_affinity fallback for non-SMP
