Henrik Austad 767f30210b tile: avoid overflow in ns2cycles ...

In commit 4cecf6d401 ("sched, x86: Avoid unnecessary overflow in
sched_clock") and in recent patch "clocksource: avoid unnecessary
overflow in cyclecounter_cyc2ns()" https://lkml.org/lkml/2014/3/4/17,
the mult-shift approach is replaced by 2 steps to avoid storing a large,
intermediate value that could overflow.

arch/tile/kernel/time.c has a similar pattern in cycles2ns, and this
copies the same pattern in this function

CC: John Stultz <johnstul@us.ibm.com>
CC: Mike Galbraith <bitbucket@online.de>
CC: Salman Qazi <sqazi@google.com>
Signed-off-by: Henrik Austad <henrik@austad.us>
Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>

2014-03-06 11:53:12 -05:00

..

vdso

tile: implement gettimeofday() via vDSO

2013-08-13 16:26:21 -04:00

asm-offsets.c

tile: check for correct compiler earlier in asm-offsets.c

2013-09-03 14:53:09 -04:00

backtrace.c

arch/tile: big-endian: properly bswap instruction bundles when backtracing

2012-06-18 13:11:21 -04:00

compat_signal.c

constify copy_siginfo_to_user{,32}()

2013-11-09 00:16:29 -05:00

compat.c

tile: remove stray blank space

2013-09-16 15:47:32 -04:00

early_printk.c

tile: various console improvements

2013-08-12 14:46:18 -04:00

entry.S

tile: implement gettimeofday() via vDSO

2013-08-13 16:26:21 -04:00

ftrace.c

tile: support ftrace on tilegx

2013-08-30 10:20:13 -04:00

hardwall.c

tile: change lock initalization in hardwall

2013-09-27 16:09:38 -04:00

head_32.S

tile: parameterize VA and PA space more cleanly

2013-09-03 14:47:34 -04:00

head_64.S

tile: parameterize VA and PA space more cleanly

2013-09-03 14:47:34 -04:00

hvglue_trace.c

tile: provide traceability for hypervisor calls

2013-08-13 16:26:31 -04:00

hvglue.S

tile: provide traceability for hypervisor calls

2013-08-13 16:26:31 -04:00

intvec_32.S

tile: ensure interrupts disabled for preempt_schedule_irq()

2013-09-27 16:09:43 -04:00

intvec_64.S

tile: ensure interrupts disabled for preempt_schedule_irq()

2013-09-27 16:09:43 -04:00

irq.c

Merge git://git.kernel.org/pub/scm/linux/kernel/git/cmetcalf/linux-tile

2013-09-06 11:14:33 -07:00

kgdb.c

tilegx: support KGDB

2013-09-03 14:51:26 -04:00

kprobes.c

tile: support kprobes on tilegx

2013-08-30 11:55:53 -04:00

machine_kexec.c

arch/tile: support kexec() for tilegx

2012-05-25 12:48:25 -04:00

Makefile

tilegx: support KGDB

2013-09-03 14:51:26 -04:00

mcount_64.S

tile: support ftrace on tilegx

2013-08-30 10:20:13 -04:00

messaging.c

tile: delete __cpuinit usage from all tile files

2013-07-14 19:36:54 -04:00

module.c

modules: don't hand 0 to vmalloc.

2012-12-14 13:06:43 +10:30

pci_gx.c

Merge git://git.kernel.org/pub/scm/linux/kernel/git/cmetcalf/linux-tile

2013-09-06 11:14:33 -07:00

pci-dma.c

tile PCI RC: make default consistent DMA mask 32-bit

2013-09-03 14:53:37 -04:00

pci.c

tile/PCI: use cached pci_dev->pcie_mpss to simplify code

2013-09-24 12:10:04 -06:00

proc.c

tile: fast-path unaligned memory access for tilegx

2013-08-13 16:04:10 -04:00

process.c

tile: remove support for TILE64

2013-09-03 14:53:29 -04:00

ptrace.c

tile: correct r1 value during syscall tracing

2013-08-30 11:56:20 -04:00

reboot.c

tile: various console improvements

2013-08-12 14:46:18 -04:00

regs_32.S

tile: change <asm/system.h> to <asm/switch_to.h> in comments

2013-09-03 14:53:17 -04:00

regs_64.S

tile: change <asm/system.h> to <asm/switch_to.h> in comments

2013-09-03 14:53:17 -04:00

relocate_kernel_32.S

tile: remove support for TILE64

2013-09-03 14:53:29 -04:00

relocate_kernel_64.S

tile: remove support for TILE64

2013-09-03 14:53:29 -04:00

setup.c

tile: remove HUGE_VMAP dead code

2013-09-13 11:15:24 -04:00

signal.c

tile: implement gettimeofday() via vDSO

2013-08-13 16:26:21 -04:00

single_step.c

tile: remove support for TILE64

2013-09-03 14:53:29 -04:00

smp.c

tile: make __write_once a synonym for __read_mostly

2013-09-03 14:53:32 -04:00

smpboot.c

Merge git://git.kernel.org/pub/scm/linux/kernel/git/cmetcalf/linux-tile

2013-09-06 11:14:33 -07:00

stack.c

arch: tile: re-use kbasename() helper

2013-09-30 10:34:46 -04:00

sys.c

tile: support CONFIG_PREEMPT

2013-08-13 16:26:01 -04:00

sysfs.c

tile: support reporting Tilera hypervisor statistics

2013-09-03 14:51:36 -04:00

tile-desc_32.c

arch/tile: factor out <arch/opcode.h> header

2011-11-03 16:58:54 -04:00

tile-desc_64.c

arch/tile: factor out <arch/opcode.h> header

2011-11-03 16:58:54 -04:00

time.c

tile: avoid overflow in ns2cycles

2014-03-06 11:53:12 -05:00

tlb.c

tile: do less L1 I-cache eviction

2013-08-30 11:56:34 -04:00

traps.c

tile: use standard tile_bundle_bits type in traps.c

2013-09-03 14:53:22 -04:00

unaligned.c

tile: fix typos in comment in arch/tile/kernel/unaligned.c

2013-09-13 10:57:54 -04:00

usb.c

usb: add host support for the tilegx architecture

2012-07-18 16:40:29 -04:00

vdso.c

tile: implement gettimeofday() via vDSO

2013-08-13 16:26:21 -04:00

vmlinux.lds.S

tile: make __write_once a synonym for __read_mostly

2013-09-03 14:53:32 -04:00