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| author | Linus Torvalds <torvalds@g5.osdl.org> | 2006-06-22 22:11:30 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2006-06-22 22:11:30 -0700 |
| commit | 45c091bb2d453ce4a8b06cf19872ec7a77fc4799 (patch) | |
| tree | 06fb2e05518ebfba163f8424e028e7faf5672d66 /include/asm-powerpc/delay.h | |
| parent | d588fcbe5a7ba8bba2cebf7799ab2d573717a806 (diff) | |
| parent | 2191fe3e39159e3375f4b7ec1420df149f154101 (diff) | |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc
* git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc: (139 commits)
[POWERPC] re-enable OProfile for iSeries, using timer interrupt
[POWERPC] support ibm,extended-*-frequency properties
[POWERPC] Extra sanity check in EEH code
[POWERPC] Dont look for class-code in pci children
[POWERPC] Fix mdelay badness on shared processor partitions
[POWERPC] disable floating point exceptions for init
[POWERPC] Unify ppc syscall tables
[POWERPC] mpic: add support for serial mode interrupts
[POWERPC] pseries: Print PCI slot location code on failure
[POWERPC] spufs: one more fix for 64k pages
[POWERPC] spufs: fail spu_create with invalid flags
[POWERPC] spufs: clear class2 interrupt status before wakeup
[POWERPC] spufs: fix Makefile for "make clean"
[POWERPC] spufs: remove stop_code from struct spu
[POWERPC] spufs: fix spu irq affinity setting
[POWERPC] spufs: further abstract priv1 register access
[POWERPC] spufs: split the Cell BE support into generic and platform dependant parts
[POWERPC] spufs: dont try to access SPE channel 1 count
[POWERPC] spufs: use kzalloc in create_spu
[POWERPC] spufs: fix initial state of wbox file
...
Manually resolved conflicts in:
drivers/net/phy/Makefile
include/asm-powerpc/spu.h
Diffstat (limited to 'include/asm-powerpc/delay.h')
| -rw-r--r-- | include/asm-powerpc/delay.h | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/include/asm-powerpc/delay.h b/include/asm-powerpc/delay.h index 057a6095547..f9200a65c63 100644 --- a/include/asm-powerpc/delay.h +++ b/include/asm-powerpc/delay.h @@ -17,5 +17,18 @@ extern void __delay(unsigned long loops); extern void udelay(unsigned long usecs); +/* + * On shared processor machines the generic implementation of mdelay can + * result in large errors. While each iteration of the loop inside mdelay + * is supposed to take 1ms, the hypervisor could sleep our partition for + * longer (eg 10ms). With the right timing these errors can add up. + * + * Since there is no 32bit overflow issue on 64bit kernels, just call + * udelay directly. + */ +#ifdef CONFIG_PPC64 +#define mdelay(n) udelay((n) * 1000) +#endif + #endif /* __KERNEL__ */ #endif /* _ASM_POWERPC_DELAY_H */ |