Jeremy Kerr b65fe0356b powerpc/spufs: Fix race for a free SPU ... We currently have a race for a free SPE. With one thread doing a spu_yield(), and another doing a spu_activate(): thread 1 thread 2 spu_yield(oldctx) spu_activate(ctx) __spu_deactivate(oldctx) spu_unschedule(oldctx, spu) spu->alloc_state = SPU_FREE spu = spu_get_idle(ctx) - searches for a SPE in state SPU_FREE, gets the context just freed by thread 1 spu_schedule(ctx, spu) spu->alloc_state = SPU_USED spu_schedule(newctx, spu) - assumes spu is still free - tries to schedule context on already-used spu This change introduces a 'free_spu' flag to spu_unschedule, to indicate whether or not the function should free the spu after descheduling the context. We only set this flag if we're not going to re-schedule another context on this SPU. Add a comment to document this behaviour. Signed-off-by: Jeremy Kerr <jk@ozlabs.org>		2008-09-05 10:52:03 +10:00
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spufs	powerpc/spufs: Fix race for a free SPU	2008-09-05 10:52:03 +10:00
axon_msi.c	powerpc: Fix irq_alloc_host() reference counting and callers	2008-06-09 13:51:16 +10:00
beat_htab.c	powerpc: Remove unnecessary condition when sanity-checking WIMG bits	2008-07-15 12:24:59 +10:00
beat_hvCall.S	[POWERPC] celleb: Move files for Beat hvcall interfaces	2008-04-24 21:08:13 +10:00
beat_interrupt.c	[POWERPC] celleb: Move miscellaneous files for Beat	2008-04-24 21:08:14 +10:00
beat_interrupt.h	[POWERPC] celleb: Move miscellaneous files for Beat	2008-04-24 21:08:14 +10:00
beat_iommu.c	[POWERPC] celleb: Move files for Beat mmu and iommu	2008-04-24 21:08:13 +10:00
beat_smp.c	[POWERPC] celleb: Move miscellaneous files for Beat	2008-04-24 21:08:14 +10:00
beat_spu_priv1.c	[POWERPC] celleb: Move a file for SPU on Beat	2008-04-24 21:08:13 +10:00
beat_syscall.h	[POWERPC] celleb: Move files for Beat hvcall interfaces	2008-04-24 21:08:13 +10:00
beat_udbg.c	[POWERPC] celleb: Move miscellaneous files for Beat	2008-04-24 21:08:14 +10:00
beat_wrapper.h	[POWERPC] celleb: Move files for Beat hvcall interfaces	2008-04-24 21:08:13 +10:00
beat.c	[POWERPC] celleb: Move miscellaneous files for Beat	2008-04-24 21:08:14 +10:00
beat.h	[POWERPC] celleb: Move miscellaneous files for Beat	2008-04-24 21:08:14 +10:00
cbe_cpufreq_pervasive.c	[POWERPC] cell: Move cbe_regs.h to include/asm-powerpc/cell-regs.h	2007-10-09 21:01:56 +10:00
cbe_cpufreq_pmi.c	cpufreq acpi: only call _PPC after cpufreq ACPI init funcs got called already	2008-07-30 09:41:43 -07:00
cbe_cpufreq.c	[POWERPC] cell: Convert #include of asm/of_{platform, device}.h into linux/of_{platform, device}.h.	2007-12-19 01:00:02 +01:00
cbe_cpufreq.h	[CELL] cbe_cpufreq: reorganize code	2007-07-20 21:41:38 +02:00
cbe_powerbutton.c	powerpc/cell: Add support for power button of future IBM cell blades	2008-07-22 10:39:32 +10:00
cbe_regs.c	[POWERPC] cell/cbe_regs.c: Add missing of_node_put	2007-12-20 17:13:51 +11:00
cbe_thermal.c	sysdev: Pass the attribute to the low level sysdev show/store function	2008-07-21 21:55:02 -07:00
celleb_pci.c	[POWERPC] celleb: Add support for PCI Express	2008-04-24 21:08:14 +10:00
celleb_pci.h	[POWERPC] celleb: Add support for PCI Express	2008-04-24 21:08:14 +10:00
celleb_scc_epci.c	[POWERPC] celleb: Move the SCC related code for celleb	2008-04-24 21:08:13 +10:00
celleb_scc_pciex.c	dma-mapping: add the device argument to dma_mapping_error()	2008-07-26 12:00:03 -07:00
celleb_scc_sio.c	[POWERPC] celleb: Move the SCC related code for celleb	2008-04-24 21:08:13 +10:00
celleb_scc_uhc.c	[POWERPC] celleb: Move the SCC related code for celleb	2008-04-24 21:08:13 +10:00
celleb_scc.h	[POWERPC] celleb: Add support for PCI Express	2008-04-24 21:08:14 +10:00
celleb_setup.c	[POWERPC] celleb: Move miscellaneous files for Beat	2008-04-24 21:08:14 +10:00
cpufreq_spudemand.c	powerpc/cell/cpufreq: Add spu aware cpufreq governor	2008-07-22 10:39:31 +10:00
interrupt.c	powerpc: convert to generic helpers for IPI function calls	2008-06-26 11:22:13 +02:00
interrupt.h	[POWERPC] cell: Add routines for managing PMU interrupts	2006-12-04 20:40:12 +11:00
io-workarounds.c	[POWERPC] cell: Fix section mismatches in io-workarounds code	2008-05-15 20:49:57 +10:00
io-workarounds.h	[POWERPC] cell: Fix section mismatches in io-workarounds code	2008-05-15 20:49:57 +10:00
iommu.c	powerpc/pseries: iommu enablement for CMO	2008-07-25 15:44:43 +10:00
Kconfig	powerpc/cell: Add support for power button of future IBM cell blades	2008-07-22 10:39:32 +10:00
Makefile	powerpc/cell: Add support for power button of future IBM cell blades	2008-07-22 10:39:32 +10:00
pervasive.c	powerpc/cell: Cleanup sysreset_hack for IBM cell blades	2008-07-22 10:39:31 +10:00
pervasive.h	powerpc/cell: Cleanup sysreset_hack for IBM cell blades	2008-07-22 10:39:31 +10:00
pmu.c	[POWERPC] cell: Use machine_*_initcall() hooks in platform code	2008-01-17 14:57:15 +11:00
ras.c	powerpc/cell: Cleanup sysreset_hack for IBM cell blades	2008-07-22 10:39:31 +10:00
ras.h	[POWERPC] cell: add RAS support	2006-06-21 15:01:29 +10:00
setup.c	[POWERPC] cell: Generalize io-workarounds code	2008-04-24 21:08:12 +10:00
smp.c	[POWERPC] Cleanup SMT thread handling	2007-12-03 13:56:25 +11:00
spider-pci.c	dma-mapping: add the device argument to dma_mapping_error()	2008-07-26 12:00:03 -07:00
spider-pic.c	powerpc: Fix irq_alloc_host() reference counting and callers	2008-06-09 13:51:16 +10:00
spu_base.c	sysdev: Pass the attribute to the low level sysdev show/store function	2008-07-21 21:55:02 -07:00
spu_callbacks.c	[POWERPC] Replace remaining __FUNCTION__ occurrences	2008-04-01 20:43:09 +11:00
spu_fault.c	[POWERPC] spufs: move fault, lscsa_alloc and switch code to spufs module	2007-12-21 19:46:19 +11:00
spu_manage.c	[POWERPC] Replace remaining __FUNCTION__ occurrences	2008-04-01 20:43:09 +11:00
spu_notify.c	[POWERPC] Oprofile: Remove dependency on spufs module	2007-12-28 15:07:52 +11:00
spu_priv1_mmio.c	[POWERPC] spufs: try to route SPU interrupts to local node	2008-05-05 13:33:43 +10:00
spu_priv1_mmio.h	[POWERPC] cell: abstract spu management routines	2006-12-04 20:40:39 +11:00
spu_syscalls.c	[POWERPC] Oprofile: Remove dependency on spufs module	2007-12-28 15:07:52 +11:00