q3k/linux
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity
linux/arch/powerpc/platforms
History
Jeremy Kerr f027faa231 powerpc/spufs: Don't spu_acquire_saved unnecessarily in regs read 
With most file readers (eg cat, dd), reading a context's regs file will
result in two reads: the first to read the data, and the second to
return EOF. Because each read performs a spu_acquire_saved, we end up
descheduling and re-scheduling the context twice.

This change does a simple check to see if we'd return EOF before
calling spu_acquire_saved(), saving the extra schedule operation.

Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
2008-10-21 11:13:43 +11:00
..
8xx powerpc: Add support for the MPC852 based mgsuvd board from keymile. 2008-09-16 10:01:30 -05:00
40x [POWERPC] 4xx: Create common ppc4xx_reset_system() in ppc4xx_soc.c 2008-04-02 20:44:56 -05:00
44x powerpc/44x: Add AMCC Arches eval board support 2008-10-02 13:08:02 -04:00
52xx powerpc/mpc5200: Silence warnings in arch/powerpc/platforms/52xx/mpc52xx_pci.c 2008-10-08 11:36:57 -06:00
82xx Merge commit 'origin' 2008-10-15 11:31:54 +11:00
83xx powerpc/83xx: don't probe broken PCI on mpc837x_mds boards 2008-10-13 11:09:58 -05:00
85xx powerpc: make Freescale QE support a selectable Kconfig option 2008-10-13 11:09:58 -05:00
86xx powerpc: FPGA support for GE Fanuc SBC610 2008-10-13 11:10:00 -05:00
512x powerpc/5121: Add PCI support. 2008-10-13 11:09:58 -05:00
cell powerpc/spufs: Don't spu_acquire_saved unnecessarily in regs read 2008-10-21 11:13:43 +11:00
chrp Merge commit 'origin' 2008-10-15 11:31:54 +11:00
embedded6xx powerpc: Drop redundant machine type print in show_cpuinfo 2008-09-29 09:23:06 -05:00
iseries powerpc: Use LOAD_REG_IMMEDIATE only for constants on 64-bit 2008-09-15 11:08:35 -07:00
maple Merge commit 'origin' 2008-10-15 11:31:54 +11:00
pasemi phylib: two dynamic mii_bus allocation fallout fixes 2008-10-09 09:45:04 -07:00
powermac Merge commit 'origin' 2008-10-15 11:31:54 +11:00
prep [POWERPC] Split several platforms into their respective Kconfig file 2007-03-22 10:07:32 -05:00
ps3 powerpc: Drop archdata numa_node 2008-09-24 16:26:43 -05:00
pseries Merge commit 'origin' 2008-10-15 11:31:54 +11:00
fsl_uli1575.c powerpc: Fix boot hang regression on MPC8544DS 2008-10-02 00:58:49 -05:00
Kconfig powerpc/QE: move QE_GPIO Kconfig symbol into the platforms/Kconfig 2008-10-13 11:09:58 -05:00
Kconfig.cputype POWERPC: Allow 32-bit hashed pgtable code to support 36-bit physical 2008-09-24 16:29:44 -05:00
Makefile powerpc: Remove use of CONFIG_PPC_MERGE 2008-08-04 13:18:17 +10:00