OpenE2K/linux
6
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity
1e92a550e8
linux/include/asm-powerpc
History
Anton Blanchard 1e92a550e8 [POWERPC] Fix mdelay badness on shared processor partitions 
On partitioned PPC64 systems where a partition is given 1/10 of a
processor, we have seen mdelay() delaying for 10 times longer than it
should.  The reason is that the generic mdelay(n) does n delays of 1
millisecond each.  However, with 1/10 of a processor, we only get a
one-millisecond timeslice every 10ms.  Thus each 1 millisecond delay
loop ends up taking 10ms elapsed time.

The solution is just to use the PPC64 udelay function, which uses the
timebase to ensure that the delay is based on elapsed time rather than
how much processing time the partition has been given.  (Yes, the
generic mdelay uses the PPC64 udelay, but the problem is that the
start time gets reset every millisecond, and each time it gets reset
we lose another 9ms.)

Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Acked-by: Andrew Morton <akpm@osdl.org>
2006-06-21 15:01:33 +10:00
..
iseries [PATCH] powerpc: merge the rest of the vio code 2006-04-29 18:02:02 +10:00
8253pit.h
a.out.h
abs_addr.h [PATCH] powerpc: sanitize header files for user space includes 2006-01-09 15:13:08 +11:00
agp.h [PATCH] powerpc: sanitize header files for user space includes 2006-01-09 15:13:08 +11:00
asm-compat.h [PATCH] powerpc: sanitize header files for user space includes 2006-01-09 15:13:08 +11:00
atomic.h [PATCH] powerpc: native atomic_add_unless 2006-02-24 14:06:02 +11:00
auxvec.h
backlight.h
bitops.h [PATCH] remove powerpc bitops in favor of existing generic bitops 2006-05-24 16:08:58 +10:00
bootx.h [PATCH] powerpc: sanitize header files for user space includes 2006-01-09 15:13:08 +11:00
btext.h [PATCH] powerpc: Unify udbg (#2) 2006-01-09 14:49:54 +11:00
bug.h [PATCH] git-powerpc: WARN was a dumb idea 2006-03-28 20:48:54 +11:00
bugs.h
byteorder.h
cache.h [PATCH] Kill L1_CACHE_SHIFT_MAX 2006-01-08 20:13:39 -08:00
cacheflush.h
checksum.h [PATCH] powerpc: sanitize header files for user space includes 2006-01-09 15:13:08 +11:00
compat.h [PATCH] powerpc signal __user annotations 2006-02-08 01:03:46 -05:00
cputable.h [POWERPC] Remove stale 64bit on 32bit kernel code 2006-06-15 19:31:26 +10:00
cputime.h powerpc: Implement accurate task and CPU time accounting 2006-02-24 14:05:56 +11:00
current.h [PATCH] powerpc: sanitize header files for user space includes 2006-01-09 15:13:08 +11:00
dbdma.h
delay.h [POWERPC] Fix mdelay badness on shared processor partitions 2006-06-21 15:01:33 +10:00
div64.h
dma-mapping.h [PATCH] remove bogus asm/bug.h includes. 2006-02-07 20:56:35 -05:00
dma.h [PATCH] powerpc: sanitize header files for user space includes 2006-01-09 15:13:08 +11:00
eeh_event.h [PATCH] powerpc/pseries: clear PCI failure counter if no new failures 2006-04-22 18:46:13 +10:00
eeh.h [PATCH] powerpc: remove io_page_mask 2006-04-22 18:45:05 +10:00
elf.h [PATCH] powerpc vdso updates 2006-06-09 21:20:57 +10:00
emergency-restart.h
errno.h
fcntl.h
firmware.h [PATCH] powerpc: Rename and export ppc64_firmware_features 2006-03-28 16:45:20 +11:00
floppy.h [PATCH] powerpc: make ISA floppies work again 2006-03-28 16:45:36 +11:00
futex.h [PATCH] lightweight robust futexes updates 2006-03-27 08:44:49 -08:00
grackle.h [PATCH] powerpc: sanitize header files for user space includes 2006-01-09 15:13:08 +11:00
hardirq.h [PATCH] powerpc: sanitize header files for user space includes 2006-01-09 15:13:08 +11:00
heathrow.h powerpc: Fix some #ifndef __KERNEL__ that should be #ifdef 2006-01-09 15:14:05 +11:00
hvcall.h [POWERPC] check firmware state before suspending 2006-06-15 19:31:27 +10:00
hvconsole.h [PATCH] powerpc: hvc_console updates 2006-03-28 16:45:26 +11:00
hvcserver.h [PATCH] powerpc: sanitize header files for user space includes 2006-01-09 15:13:08 +11:00
hw_irq.h
i8259.h [PATCH] powerpc: sanitize header files for user space includes 2006-01-09 15:13:08 +11:00
ibmebus.h [PATCH] powerpc: sanitize header files for user space includes 2006-01-09 15:13:08 +11:00
ide.h
immap_86xx.h [POWERPC] Add 8641 Register space and IRQ definitions. 2006-06-21 15:01:28 +10:00
io.h Merge branch 'merge' 2006-04-29 16:15:57 +10:00
ioctl.h
ioctls.h
iommu.h [POWERPC] node local IOMMU tables 2006-06-15 19:31:26 +10:00
ipc.h
ipcbuf.h
ipic.h
irq.h [POWERPC] Add 8641 Register space and IRQ definitions. 2006-06-21 15:01:28 +10:00
kdebug.h [PATCH] Notifier chain update: API changes 2006-03-27 08:44:50 -08:00
kdump.h [PATCH] powerpc: Kdump header cleanup 2006-05-19 15:02:16 +10:00
kexec.h [PATCH] powerpc: Move crashkernel= handling into the kernel. 2006-05-19 15:02:18 +10:00
keylargo.h [PATCH] powerpc: sanitize header files for user space includes 2006-01-09 15:13:08 +11:00
kmap_types.h
kprobes.h [PATCH] kprobes: fix build breakage 2006-01-10 08:01:40 -08:00
linkage.h
lmb.h [PATCH] powerpc: Remove calculation of io hole 2006-03-22 15:04:30 +11:00
local.h
lppaca.h [PATCH] Fix sparse parse error in lppaca.h 2006-01-17 17:18:25 -08:00
machdep.h [POWERPC] MSI abstraction 2006-06-15 19:31:25 +10:00
macio.h [PATCH] powerpc: sanitize header files for user space includes 2006-01-09 15:13:08 +11:00
mc146818rtc.h
mediabay.h
mman.h [PATCH] add asm-generic/mman.h 2006-02-15 15:32:22 -08:00
mmu_context.h powerpc: Remove unused paca->pgdir field 2006-06-12 18:38:21 +10:00
mmu.h powerpc: Use 64k pages without needing cache-inhibited large pages 2006-06-15 10:45:18 +10:00
mmzone.h [PATCH] powerpc: sanitize header files for user space includes 2006-01-09 15:13:08 +11:00
module.h [PATCH] powerpc: sanitize header files for user space includes 2006-01-09 15:13:08 +11:00
mpc86xx.h [POWERPC] Add 8641 Register space and IRQ definitions. 2006-06-21 15:01:28 +10:00
mpic.h [POWERPC] mpic: add support for serial mode interrupts 2006-06-21 15:01:32 +10:00
msgbuf.h
mutex.h [PATCH] mutex subsystem, add default include/asm-*/mutex.h files 2006-01-09 15:59:19 -08:00
namei.h
nvram.h [PATCH] powerpc: sanitize header files for user space includes 2006-01-09 15:13:08 +11:00
of_device.h [PATCH] powerpc: sanitize header files for user space includes 2006-01-09 15:13:08 +11:00
ohare.h powerpc: Fix some #ifndef __KERNEL__ that should be #ifdef 2006-01-09 15:14:05 +11:00
oprofile_impl.h [PATCH] powerpc: Remove oprofile spinlock backtrace code 2006-03-29 13:44:16 +11:00
paca.h powerpc: Use 64k pages without needing cache-inhibited large pages 2006-06-15 10:45:18 +10:00
page_32.h [PATCH] powerpc: sanitize header files for user space includes 2006-01-09 15:13:08 +11:00
page_64.h [PATCH] powerpc: Fix pagetable bloat for hugepages 2006-04-28 15:02:51 +10:00
page.h [PATCH] powerpc vdso updates 2006-06-09 21:20:57 +10:00
param.h [PATCH] powerpc: sanitize header files for user space includes 2006-01-09 15:13:08 +11:00
parport.h [PATCH] powerpc: parallel port init fix 2006-01-11 14:49:24 +11:00
pci-bridge.h [POWERPC] pcibus_to_node fixes 2006-06-15 19:31:26 +10:00
pci.h [PATCH] powerpc: make pcibios_claim_one_bus available to other code 2006-01-09 14:51:08 +11:00
percpu.h [PATCH] for_each_possible_cpu: powerpc 2006-03-29 13:44:15 +11:00
pgalloc.h [PATCH] powerpc: Fix pagetable bloat for hugepages 2006-04-28 15:02:51 +10:00
pgtable-4k.h powerpc: Use 64k pages without needing cache-inhibited large pages 2006-06-15 10:45:18 +10:00
pgtable-64k.h powerpc: Use 64k pages without needing cache-inhibited large pages 2006-06-15 10:45:18 +10:00
pgtable.h powerpc: Use 64k pages without needing cache-inhibited large pages 2006-06-15 10:45:18 +10:00
pmac_feature.h [PATCH] powerpc: Kill _machine and hard-coded platform numbers 2006-03-28 23:15:54 +11:00
pmac_low_i2c.h [PATCH] 3/5 powerpc: Add platform functions interpreter 2006-01-09 15:47:18 +11:00
pmac_pfunc.h [PATCH] powerpc: enable irq's for platform functions. 2006-02-01 08:53:10 -08:00
pmc.h [PATCH] powerpc: sanitize header files for user space includes 2006-01-09 15:13:08 +11:00
poll.h [PATCH] POLLRDHUP/EPOLLRDHUP handling for half-closed devices notifications 2006-03-25 08:22:56 -08:00
posix_types.h
ppc_asm.h powerpc: Implement accurate task and CPU time accounting 2006-02-24 14:05:56 +11:00
ppc-pci.h [PATCH] powerpc: properly configure DDR/P5IOC children devs 2006-03-16 16:55:07 +11:00
processor.h [POWERPC] disable floating point exceptions for init 2006-06-21 15:01:33 +10:00
prom.h [POWERPC] cell: add RAS support 2006-06-21 15:01:29 +10:00
pSeries_reconfig.h [PATCH] powerpc: sanitize header files for user space includes 2006-01-09 15:13:08 +11:00
ptrace.h [PATCH] powerpc: enable PPC_PTRACE_[GS]ETREGS on ppc32 2006-06-09 21:20:51 +10:00
reg_8xx.h
reg.h [POWERPC] cell: add RAS support 2006-06-21 15:01:29 +10:00
resource.h
rtas.h [POWERPC] check firmware state before suspending 2006-06-15 19:31:27 +10:00
rtc.h
rwsem.h [PATCH] powerpc: trivial: modify comments to refer to new location of files 2006-02-10 16:53:51 +11:00
scatterlist.h
seccomp.h powerpc: Fix some #ifndef __KERNEL__ that should be #ifdef 2006-01-09 15:14:05 +11:00
sections.h [PATCH] powerpc: sanitize header files for user space includes 2006-01-09 15:13:08 +11:00
semaphore.h
sembuf.h
serial.h powerpc: Introduce a new config symbol to control 16550 early debug code 2006-01-10 16:19:05 +11:00
setup.h
shmbuf.h
shmparam.h
sigcontext.h
siginfo.h
signal.h [PATCH] powerpc: sanitize header files for user space includes 2006-01-09 15:13:08 +11:00
smp.h [PATCH] powerpc: Allow non zero boot cpuids 2006-03-27 14:48:48 +11:00
smu.h [PATCH] powerpc: Thermal control for dual core G5s 2006-02-07 22:05:14 -08:00
socket.h
sockios.h
sparsemem.h [PATCH] powerpc: sanitize header files for user space includes 2006-01-09 15:13:08 +11:00
spinlock_types.h
spinlock.h [PATCH] powerpc: use lwsync in atomics, bitops, lock functions 2006-01-13 21:18:50 +11:00
spu_csa.h [POWERPC] spufs: one more fix for 64k pages 2006-06-21 15:01:32 +10:00
spu_priv1.h [POWERPC] spufs: fix spu irq affinity setting 2006-06-21 15:01:31 +10:00
spu.h [POWERPC] spufs: remove stop_code from struct spu 2006-06-21 15:01:31 +10:00
sstep.h
stat.h
statfs.h
string.h powerpc: fix strncasecmp prototype 2006-03-25 09:41:40 -08:00
synch.h [PATCH] powerpc: newline for ISYNC_ON_SMP 2006-02-24 14:06:00 +11:00
syscalls.h [PATCH] powerpc: declare arch syscalls in <asm/syscalls.h> 2006-03-27 14:48:22 +11:00
systbl.h [POWERPC] Unify ppc syscall tables 2006-06-21 15:01:32 +10:00
system.h [NET]: Allow skb headroom to be overridden 2006-03-31 02:27:06 -08:00
tce.h [PATCH] powerpc: kill union tce_entry 2006-04-29 18:07:54 +10:00
termbits.h [PATCH] Add CMSPAR to termbits.h for powerpc and alpha 2006-05-26 11:55:46 -07:00
termios.h
thread_info.h powerpc: Use correct sequence for putting CPU into nap mode 2006-04-18 21:49:11 +10:00
time.h powerpc: Implement accurate task and CPU time accounting 2006-02-24 14:05:56 +11:00
timex.h
tlb.h [PATCH] powerpc: sanitize header files for user space includes 2006-01-09 15:13:08 +11:00
tlbflush.h
topology.h [POWERPC] pcibus_to_node fixes 2006-06-15 19:31:26 +10:00
types.h [PATCH] 2TB files: add blkcnt_t 2006-03-26 08:57:00 -08:00
uaccess.h powerpc: Fix incorrect might_sleep in __get_user/__put_user on kernel addresses 2006-05-03 23:06:46 +10:00
ucontext.h
udbg.h [PATCH] powerpc: udbg_printf() formatting attribute 2006-05-19 15:02:19 +10:00
unaligned.h
uninorth.h
unistd.h [PATCH] powerpc: wire up sys_[gs]et_robust_list 2006-05-23 10:35:32 -07:00
user.h
vdso_datapage.h [PATCH] powerpc: Kill _machine and hard-coded platform numbers 2006-03-28 23:15:54 +11:00
vdso.h
vga.h
vio.h [PATCH] powerpc: merge the rest of the vio code 2006-04-29 18:02:02 +10:00
xmon.h
xor.h