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author | Linus Torvalds <torvalds@linux-foundation.org> | 2012-03-21 18:55:10 -0700 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2012-03-21 18:55:10 -0700 |
commit | 5375871d432ae9fc581014ac117b96aaee3cd0c7 (patch) | |
tree | be98e8255b0f927fb920fb532a598b93fa140dbe /arch/powerpc/platforms/iseries/smp.c | |
parent | b57cb7231b2ce52d3dda14a7b417ae125fb2eb97 (diff) | |
parent | dfbc2d75c1bd47c3186fa91f1655ea2f3825b0ec (diff) | |
download | linux-5375871d432ae9fc581014ac117b96aaee3cd0c7.tar.gz linux-5375871d432ae9fc581014ac117b96aaee3cd0c7.tar.bz2 linux-5375871d432ae9fc581014ac117b96aaee3cd0c7.zip |
Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc
Pull powerpc merge from Benjamin Herrenschmidt:
"Here's the powerpc batch for this merge window. It is going to be a
bit more nasty than usual as in touching things outside of
arch/powerpc mostly due to the big iSeriesectomy :-) We finally got
rid of the bugger (legacy iSeries support) which was a PITA to
maintain and that nobody really used anymore.
Here are some of the highlights:
- Legacy iSeries is gone. Thanks Stephen ! There's still some bits
and pieces remaining if you do a grep -ir series arch/powerpc but
they are harmless and will be removed in the next few weeks
hopefully.
- The 'fadump' functionality (Firmware Assisted Dump) replaces the
previous (equivalent) "pHyp assisted dump"... it's a rewrite of a
mechanism to get the hypervisor to do crash dumps on pSeries, the
new implementation hopefully being much more reliable. Thanks
Mahesh Salgaonkar.
- The "EEH" code (pSeries PCI error handling & recovery) got a big
spring cleaning, motivated by the need to be able to implement a
new backend for it on top of some new different type of firwmare.
The work isn't complete yet, but a good chunk of the cleanups is
there. Note that this adds a field to struct device_node which is
not very nice and which Grant objects to. I will have a patch soon
that moves that to a powerpc private data structure (hopefully
before rc1) and we'll improve things further later on (hopefully
getting rid of the need for that pointer completely). Thanks Gavin
Shan.
- I dug into our exception & interrupt handling code to improve the
way we do lazy interrupt handling (and make it work properly with
"edge" triggered interrupt sources), and while at it found & fixed
a wagon of issues in those areas, including adding support for page
fault retry & fatal signals on page faults.
- Your usual random batch of small fixes & updates, including a bunch
of new embedded boards, both Freescale and APM based ones, etc..."
I fixed up some conflicts with the generalized irq-domain changes from
Grant Likely, hopefully correctly.
* 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc: (141 commits)
powerpc/ps3: Do not adjust the wrapper load address
powerpc: Remove the rest of the legacy iSeries include files
powerpc: Remove the remaining CONFIG_PPC_ISERIES pieces
init: Remove CONFIG_PPC_ISERIES
powerpc: Remove FW_FEATURE ISERIES from arch code
tty/hvc_vio: FW_FEATURE_ISERIES is no longer selectable
powerpc/spufs: Fix double unlocks
powerpc/5200: convert mpc5200 to use of_platform_populate()
powerpc/mpc5200: add options to mpc5200_defconfig
powerpc/mpc52xx: add a4m072 board support
powerpc/mpc5200: update mpc5200_defconfig to fit for charon board
Documentation/powerpc/mpc52xx.txt: Checkpatch cleanup
powerpc/44x: Add additional device support for APM821xx SoC and Bluestone board
powerpc/44x: Add support PCI-E for APM821xx SoC and Bluestone board
MAINTAINERS: Update PowerPC 4xx tree
powerpc/44x: The bug fixed support for APM821xx SoC and Bluestone board
powerpc: document the FSL MPIC message register binding
powerpc: add support for MPIC message register API
powerpc/fsl: Added aliased MSIIR register address to MSI node in dts
powerpc/85xx: mpc8548cds - add 36-bit dts
...
Diffstat (limited to 'arch/powerpc/platforms/iseries/smp.c')
-rw-r--r-- | arch/powerpc/platforms/iseries/smp.c | 88 |
1 files changed, 0 insertions, 88 deletions
diff --git a/arch/powerpc/platforms/iseries/smp.c b/arch/powerpc/platforms/iseries/smp.c deleted file mode 100644 index 02df49fb59f0..000000000000 --- a/arch/powerpc/platforms/iseries/smp.c +++ /dev/null @@ -1,88 +0,0 @@ -/* - * SMP support for iSeries machines. - * - * Dave Engebretsen, Peter Bergner, and - * Mike Corrigan {engebret|bergner|mikec}@us.ibm.com - * - * Plus various changes from other IBM teams... - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * as published by the Free Software Foundation; either version - * 2 of the License, or (at your option) any later version. - */ - -#undef DEBUG - -#include <linux/kernel.h> -#include <linux/sched.h> -#include <linux/smp.h> -#include <linux/interrupt.h> -#include <linux/kernel_stat.h> -#include <linux/delay.h> -#include <linux/init.h> -#include <linux/spinlock.h> -#include <linux/cache.h> -#include <linux/err.h> -#include <linux/device.h> -#include <linux/cpu.h> - -#include <asm/ptrace.h> -#include <linux/atomic.h> -#include <asm/irq.h> -#include <asm/page.h> -#include <asm/pgtable.h> -#include <asm/io.h> -#include <asm/smp.h> -#include <asm/paca.h> -#include <asm/iseries/hv_call.h> -#include <asm/time.h> -#include <asm/machdep.h> -#include <asm/cputable.h> -#include <asm/system.h> - -static void smp_iSeries_cause_ipi(int cpu, unsigned long data) -{ - HvCall_sendIPI(&(paca[cpu])); -} - -static int smp_iSeries_probe(void) -{ - return cpumask_weight(cpu_possible_mask); -} - -static int smp_iSeries_kick_cpu(int nr) -{ - BUG_ON((nr < 0) || (nr >= NR_CPUS)); - - /* Verify that our partition has a processor nr */ - if (lppaca_of(nr).dyn_proc_status >= 2) - return -ENOENT; - - /* The processor is currently spinning, waiting - * for the cpu_start field to become non-zero - * After we set cpu_start, the processor will - * continue on to secondary_start in iSeries_head.S - */ - paca[nr].cpu_start = 1; - - return 0; -} - -static void __devinit smp_iSeries_setup_cpu(int nr) -{ -} - -static struct smp_ops_t iSeries_smp_ops = { - .message_pass = NULL, /* Use smp_muxed_ipi_message_pass */ - .cause_ipi = smp_iSeries_cause_ipi, - .probe = smp_iSeries_probe, - .kick_cpu = smp_iSeries_kick_cpu, - .setup_cpu = smp_iSeries_setup_cpu, -}; - -/* This is called very early. */ -void __init smp_init_iSeries(void) -{ - smp_ops = &iSeries_smp_ops; -} |