Re: [PATCH] powerpc/powernv: Avoid to set EEH_PE_ISOLATED for passed PE

2014-08-14 Thread Mike Qiu
Hi, all After discussing with Gavin offline, it's inappropriate to drop ISOLATED state. Please ignore this patch. Otherwise, somebody will merge that to mainline, which would be a problem. Thanks, Mike On 08/13/2014 07:14 PM, Mike Qiu wrote: When PE passed to guest, and guest EEH oc

[PATCH] powerpc/powernv: Avoid to set EEH_PE_ISOLATED for passed PE

2014-08-13 Thread Mike Qiu
When PE passed to guest, and guest EEH occured with this PE, EEH_PE_ISOLATED maybe set in host. It is a big issue when the PE is reused by host, host EEH will not work on this PE because it was set to EEH_PE_ISOLATED unexpectly. Signed-off-by: Mike Qiu --- arch/powerpc/platforms/powernv/eeh

Re: [PATCH v1 2/3] powerpc/powernv: Support PCI error injection

2014-07-21 Thread Mike Qiu
On 07/22/2014 11:26 AM, Gavin Shan wrote: On Tue, Jul 22, 2014 at 11:10:42AM +0800, Mike Qiu wrote: On 07/22/2014 06:49 AM, Benjamin Herrenschmidt wrote: On Mon, 2014-07-21 at 16:06 +0800, Mike Qiu wrote: I don't like this. I much prefer have dedicated error injection files in

Re: [PATCH v1 2/3] powerpc/powernv: Support PCI error injection

2014-07-21 Thread Mike Qiu
On 07/22/2014 06:49 AM, Benjamin Herrenschmidt wrote: On Mon, 2014-07-21 at 16:06 +0800, Mike Qiu wrote: I don't like this. I much prefer have dedicated error injection files in their respective locations, something for PCI under the corresponding PCI bridge etc... So PowerNV error inje

Re: [PATCH v1 2/3] powerpc/powernv: Support PCI error injection

2014-07-21 Thread Mike Qiu
On 06/25/2014 11:19 AM, Benjamin Herrenschmidt wrote: On Wed, 2014-06-25 at 11:05 +0800, Mike Qiu wrote: Here maybe "/sys/kernel/debug/powerpc/errinjct" is better, because it will supply "PCI_domain_nr" in parameters, so no need supply errinjct for each PCI domain. Ano

[PATCH v3] powerpc/eeh: Wrong place to call pci_get_slot()

2014-07-14 Thread Mike Qiu
iable) .eeh_pe_loc_get+0x150/0x190 .eeh_dev_check_failure+0x1b4/0x550 .eeh_check_failure+0x90/0xf0 .lpfc_sli_check_eratt+0x504/0x7c0 [lpfc] .lpfc_poll_eratt+0x64/0x100 [lpfc] .call_timer_fn+0x64/0x190 .run_timer_softirq+0x2cc/0x3e0 Cc: sta...@vger.kernel.org Signed-off-by: Mike Qiu

Re: [PATCH v2] Bugfix: powerpc/eeh: Wrong place to call pci_get_slot()

2014-07-14 Thread Mike Qiu
On 07/15/2014 01:07 PM, Gavin Shan wrote: On Mon, Jul 14, 2014 at 10:33:48PM -0400, Mike Qiu wrote: pci_get_slot() is called with hold of PCI bus semaphore and it's not safe to be called in interrupt context. However, we possibly checks EEH error and calls the function in interrupt contex

[PATCH v2] Bugfix: powerpc/eeh: Wrong place to call pci_get_slot()

2014-07-14 Thread Mike Qiu
iable) .eeh_pe_loc_get+0x150/0x190 .eeh_dev_check_failure+0x1b4/0x550 .eeh_check_failure+0x90/0xf0 .lpfc_sli_check_eratt+0x504/0x7c0 [lpfc] .lpfc_poll_eratt+0x64/0x100 [lpfc] .call_timer_fn+0x64/0x190 .run_timer_softirq+0x2cc/0x3e0 Signed-off-by: Mike Qiu --- Changelog[v2]:

Re: [PATCH] Bugfix: powerpc/eeh: Wrong place to call pci_get_slot()

2014-07-14 Thread Mike Qiu
On 07/14/2014 09:01 PM, Gavin Shan wrote: On Mon, Jul 14, 2014 at 04:19:23AM -0400, Mike Qiu wrote: [ 121.133381] WARNING: at drivers/pci/search.c:223 [ 121.133422] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 3.16.0-rc3+ #72 [ 121.133424] task: c1367af0 ti: c1444000 task.ti

[PATCH] Bugfix: powerpc/eeh: Wrong place to call pci_get_slot()

2014-07-14 Thread Mike Qiu
error checking in interrupt in this situation. This patch is to solve this issue. Signed-off-by: Mike Qiu --- arch/powerpc/kernel/eeh_pe.c | 29 ++--- 1 file changed, 26 insertions(+), 3 deletions(-) diff --git a/arch/powerpc/kernel/eeh_pe.c b/arch/powerpc/kernel/eeh_pe.c

[PATCH] powerpc/eeh: sysfs entries lost

2014-06-25 Thread Mike Qiu
e eeh_probe_mode_dev() in EEH core. Signed-off-by: Mike Qiu --- arch/powerpc/kernel/eeh_pe.c | 11 --- arch/powerpc/platforms/powernv/eeh-powernv.c | 17 - arch/powerpc/platforms/powernv/pci-ioda.c| 2 +- 3 files changed, 17 insertions(+), 13 deleti

Re: [PATCH] Bugfix: powerpc/eeh: Create eeh sysfs entry in post_init()

2014-06-25 Thread Mike Qiu
On 06/26/2014 08:12 AM, Gavin Shan wrote: On Wed, Jun 25, 2014 at 03:27:55PM +0800, Mike Qiu wrote: On 06/25/2014 01:33 PM, Gavin Shan wrote: On Tue, Jun 24, 2014 at 11:32:07PM -0400, Mike Qiu wrote: [ cc Richard ] Eeh sysfs entry created must be after EEH_ENABLED been set in

Re: [PATCH] Bugfix: powerpc/eeh: Create eeh sysfs entry in post_init()

2014-06-25 Thread Mike Qiu
On 06/25/2014 01:33 PM, Gavin Shan wrote: On Tue, Jun 24, 2014 at 11:32:07PM -0400, Mike Qiu wrote: [ cc Richard ] Eeh sysfs entry created must be after EEH_ENABLED been set in eeh_subsystem_flags. In PowerNV platform, it try to create sysfs entry before EEH_ENABLED been set, when boot up

Re: [PATCH powerpc] Fix parameter restoring issue in commit 752a6422f

2014-06-24 Thread Mike Qiu
Hi Zhong, I really need this patch :) BTW, it seems that this bug just happens in 3.16-rc1 as I reported. Thanks Mike On 06/25/2014 12:00 PM, Li Zhong wrote: In commit 752a6422f, new stack frame is created for parameters. However, the r1 is added back a little earlier, so r3 and r4 are resto

[PATCH] Bugfix: powerpc/eeh: Create eeh sysfs entry in post_init()

2014-06-24 Thread Mike Qiu
Eeh sysfs entry created must be after EEH_ENABLED been set in eeh_subsystem_flags. In PowerNV platform, it try to create sysfs entry before EEH_ENABLED been set, when boot up. So nothing will be created for eeh in sysfs. Signed-off-by: Mike Qiu --- arch/powerpc/platforms/powernv/eeh-ioda.c | 3

Re: [PATCH v1 2/3] powerpc/powernv: Support PCI error injection

2014-06-24 Thread Mike Qiu
On 06/25/2014 08:03 AM, Gavin Shan wrote: On Tue, Jun 24, 2014 at 05:00:52PM +1000, Benjamin Herrenschmidt wrote: On Tue, 2014-06-24 at 14:57 +0800, Mike Qiu wrote: Is that mean *host* side error injection should base on "CONFIG_IOMMU_API" ? If it is just host side(no guest, no pa

Re: [PATCH] powerpc/powernv: Remove OPAL v1 takeover

2014-06-24 Thread Mike Qiu
Reported-and-tested-by: Mike Qiu Thanks Mike On 06/24/2014 03:17 PM, Michael Ellerman wrote: In commit 27f4488872d9 "Add OPAL takeover from PowerVM" we added support for "takeover" on OPAL v1 machines. This was a mode of operation where we would boot under pHyp, and query

Re: [PATCH v1 2/3] powerpc/powernv: Support PCI error injection

2014-06-23 Thread Mike Qiu
On 06/24/2014 02:36 PM, Benjamin Herrenschmidt wrote: Is it reasonable to do error injection with "CONFIG_IOMMU_API" ? That means if use default config(CONFIG_IOMMU_API = n), we can not do error injection to pci devices? Well we can't pass them through either so ... In any case, this is not a

Re: [PATCH v1 2/3] powerpc/powernv: Support PCI error injection

2014-06-23 Thread Mike Qiu
On 06/23/2014 10:14 AM, Gavin Shan wrote: The patch implements one OPAL firmware sysfs file to support PCI error injection: "/sys/firmware/opal/errinjct", which will be used like the way described as follows. According to PAPR spec, there are 3 RTAS calls related to error injection: "ibm,open-er

Re: Boot failure in Power7 pSeries

2014-06-18 Thread Mike Qiu
On 06/19/2014 11:55 AM, Michael Ellerman wrote: On Thu, 2014-06-19 at 10:18 +0800, Mike Qiu wrote: On 06/19/2014 09:32 AM, Michael Ellerman wrote: On Wed, 2014-06-18 at 17:02 +0800, Mike Qiu wrote: On 06/18/2014 03:54 PM, Michael Ellerman wrote: On Wed, 2014-06-18 at 11:27 +0800, Mike Qiu

Re: Boot failure in Power7 pSeries

2014-06-18 Thread Mike Qiu
On 06/19/2014 09:32 AM, Michael Ellerman wrote: On Wed, 2014-06-18 at 17:02 +0800, Mike Qiu wrote: On 06/18/2014 03:54 PM, Michael Ellerman wrote: On Wed, 2014-06-18 at 11:27 +0800, Mike Qiu wrote: Anyone has a idea on this issue? Did it ever work? If so which kernel version? It works for

Re: Boot failure in Power7 pSeries

2014-06-18 Thread Mike Qiu
On 06/19/2014 09:32 AM, Michael Ellerman wrote: On Wed, 2014-06-18 at 17:02 +0800, Mike Qiu wrote: On 06/18/2014 03:54 PM, Michael Ellerman wrote: On Wed, 2014-06-18 at 11:27 +0800, Mike Qiu wrote: Anyone has a idea on this issue? Did it ever work? If so which kernel version? It works for

Re: Boot failure in Power7 pSeries

2014-06-18 Thread Mike Qiu
On 06/19/2014 09:32 AM, Michael Ellerman wrote: On Wed, 2014-06-18 at 17:02 +0800, Mike Qiu wrote: On 06/18/2014 03:54 PM, Michael Ellerman wrote: On Wed, 2014-06-18 at 11:27 +0800, Mike Qiu wrote: Anyone has a idea on this issue? Did it ever work? If so which kernel version? It works for

Re: Boot failure in Power7 pSeries

2014-06-18 Thread Mike Qiu
On 06/18/2014 03:54 PM, Michael Ellerman wrote: On Wed, 2014-06-18 at 11:27 +0800, Mike Qiu wrote: Anyone has a idea on this issue? Did it ever work? If so which kernel version? It works for 3.15, but failed with linux version 3.16.0-rc1-next-20140617 The config file can be simply get from

Re: Boot failure in Power7 pSeries

2014-06-17 Thread Mike Qiu
Anyone has a idea on this issue? Thanks Mike On 06/17/2014 05:45 PM, Mike Qiu wrote: Hi all, I use newest linux-next( top commit: 5f295cdf5c5dbbb0c40f10f2ddae02ff46bbf773) to boot up my Power7 machine, PowerVM mode(HypMode 01), use defualt config file in /boot/, it show error log below

Boot failure in Power7 pSeries

2014-06-17 Thread Mike Qiu
Hi all, I use newest linux-next( top commit: 5f295cdf5c5dbbb0c40f10f2ddae02ff46bbf773) to boot up my Power7 machine, PowerVM mode(HypMode 01), use defualt config file in /boot/, it show error log below: OF stdout device is: /vdevice/vty@3000 Preparing to boot Linux version 3.16.0-rc1-nex

Re: [PATCH v2] powerpc: Avoid circular dependency with zImage.%

2014-06-11 Thread Mike Qiu
This v2 patch is good, Tested-by: Mike Qiu On 06/11/2014 11:40 PM, Michal Marek wrote: The rule to create the final images uses a zImage.% pattern. Unfortunately, this also matches the names of the zImage.*.lds linker scripts, which appear as a dependency of the final images. This somehow

Re: Kernel build fail with "Circular xxxx <- xxxx dependency dropped"

2014-06-11 Thread Mike Qiu
Error 1 make: *** [zImage] Error 2 make: *** Waiting for unfinished jobs Thanks Mike On 06/11/2014 08:22 PM, Michal Marek wrote: Dne 11.6.2014 14:21, Michal Marek napsal(a): On Wed, Jun 11, 2014 at 10:24:24AM +0200, Michal Marek wrote: Dne 11.6.2014 08:02, Mike Qiu napsal(a): make[1]: Cir

Kernel build fail with "Circular xxxx <- xxxx dependency dropped"

2014-06-10 Thread Mike Qiu
Hi all, I recently build linux next kernel in IBM Power7 platform, use default config file copy from /boot/config-3.6.10-4.fc18.ppc64p7 [root@cena01 linux-next]# uname -a Linux cena01.austin.ibm.com 3.15.0-rc1+ #47 SMP Thu Apr 24 20:59:46 CDT 2014 ppc64 ppc64 ppc64 GNU/Linux [root@cena01 li

PowerPC Build error with patch: powerpc/ppc64: Allow allmodconfig to build (finally !)

2014-05-19 Thread Mike Qiu
Hi all, I face one build error in linux-next git tree, see below: The platform is IBM P7. [root@cena01 linux-next]# make -j60 CHK include/config/kernel.release CHK include/generated/uapi/linux/version.h CHK include/generated/utsrelease.h CALLscripts/checksyscalls.sh :1232

Re: [PATCH RFC v3 0/8] EEH Support for VFIO PCI device

2014-05-14 Thread Mike Qiu
for both cases of PowerNV (OPAL) and pSeries (RTAS). The series of patches requires corresponding firmware changes from Mike Qiu to support error injection and QEMU changes to support EEH for guest. QEMU patchset will be sent separately. Change log == v1 -> v2: * EEH

Re: [PATCH] powerpc/mm: Fix ".__node_distance" undefined

2014-04-16 Thread Mike Qiu
Any update about this patch ? Thanks Mike On 04/15/2014 10:00 PM, Mike Qiu wrote: CHK include/config/kernel.release CHK include/generated/uapi/linux/version.h CHK include/generated/utsrelease.h ... Building modules, stage 2. WARNING: 1 bad relocations c13d6a30

[PATCH] powerpc/mm: Fix ".__node_distance" undefined

2014-04-15 Thread Mike Qiu
exported in powerpc. Signed-off-by: Mike Qiu --- arch/powerpc/mm/numa.c | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/powerpc/mm/numa.c b/arch/powerpc/mm/numa.c index 4ebbb9e..3b181b2 100644 --- a/arch/powerpc/mm/numa.c +++ b/arch/powerpc/mm/numa.c @@ -232,6 +232,7 @@ int __node_d

Re: [PATCH] Fix 3bc95598 'powerpc/PCI: Use list_for_each_entry() for bus traversal'

2014-04-10 Thread Mike Qiu
On 04/10/2014 03:54 PM, Benjamin Herrenschmidt wrote: On Thu, 2014-04-10 at 02:51 -0400, Mike Qiu wrote: Unable to handle kernel paging request for data at address 0x Faulting instruction address: 0xc0041d78 Oops: Kernel access of bad area, sig: 11 [#1] ... NIP [c0041d78

[PATCH] Fix 3bc95598 'powerpc/PCI: Use list_for_each_entry() for bus traversal'

2014-04-09 Thread Mike Qiu
bus->next. Signed-off-by: Mike Qiu --- arch/powerpc/kernel/pci_64.c | 9 ++--- 1 file changed, 6 insertions(+), 3 deletions(-) diff --git a/arch/powerpc/kernel/pci_64.c b/arch/powerpc/kernel/pci_64.c index 2a47790..7b6c1ae 100644 --- a/arch/powerpc/kernel/pci_64.c +++ b/arch/powerpc/ke

[PATCH v4] powerpc/eeh: powerpc/eeh: Fix undefined variable

2013-08-11 Thread Mike Qiu
pr_devel() directly, instead of use IODA_EEH_DBG() Signed-off-by: Mike Qiu --- arch/powerpc/platforms/powernv/eeh-ioda.c | 22 -- 1 file changed, 8 insertions(+), 14 deletions(-) diff --git a/arch/powerpc/platforms/powernv/eeh-ioda.c b/arch/powerpc/platforms/powernv/eeh-ioda.c

[PATCH v3] powerpc/eeh: powerpc/eeh: Fix undefined variable

2013-08-06 Thread Mike Qiu
'pe_no' hasn't been defined, it should be an typo error, it should be 'frozen_pe_no'. Also '__func__' has missed in IODA_EEH_DBG(), For safety reasons, use pr_devel() directly, instead of use IODA_EEH_DBG() Signed-off-by: Mike Qiu --- arch/powerp

[PATCH v2] powerpc/eeh: powerpc/eeh: Fix undefined variable

2013-08-06 Thread Mike Qiu
'pe_no' hasn't been defined, it should be an typo error, it should be 'frozen_pe_no'. Also '__func__' has missed in IODA_EEH_DBG(), For safety reasons, use pr_info() directly, instead of use IODA_EEH_DBG() Signed-off-by: Mike Qiu --- arch/powerp

Re: [PATCH] powerpc/eeh: Fix undefined variable

2013-08-06 Thread Mike Qiu
于 2013/8/7 13:25, Gavin Shan 写道: On Wed, Aug 07, 2013 at 03:11:24PM +1000, Michael Ellerman wrote: On Tue, Aug 06, 2013 at 10:24:46PM -0400, Mike Qiu wrote: 'pe_no' hasn't been defined, it should be an typo error, it should be 'frozen_pe_no'. Also '__func__&#x

[PATCH] powerpc/eeh: Add procfs entry for PowerNV

2013-08-06 Thread Mike Qiu
The procfs entry for global statistics has been missed on PowerNV platform and the patch is going to add that. Signed-off-by: Mike Qiu --- arch/powerpc/kernel/eeh.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/powerpc/kernel/eeh.c b/arch/powerpc/kernel/eeh.c index

[PATCH] powerpc/eeh: Fix undefined variable

2013-08-06 Thread Mike Qiu
'pe_no' hasn't been defined, it should be an typo error, it should be 'frozen_pe_no'. Also '__func__' should be added to IODA_EEH_DBG(), Signed-off-by: Mike Qiu --- arch/powerpc/platforms/powernv/eeh-ioda.c | 3 ++- 1 file changed, 2 insertions(+), 1 del

Re: [PATCH 05/31] powerpc/eeh: Trace PCI bus from PE

2013-06-19 Thread Mike Qiu
于 2013/6/18 16:33, Gavin Shan 写道: There're several types of PEs can be supported for now: PHB, Bus and Device dependent PE. For PCI bus dependent PE, tracing the corresponding PCI bus from PE (struct eeh_pe) would make the code more efficient. The patch also enables the retrieval of PCI bus based

Re: [RFC 08/10] irqdomain: Refactor irq_domain_associate_many()

2013-06-17 Thread Mike Qiu
于 2013/6/10 8:49, Grant Likely 写道: Originally, irq_domain_associate_many() was designed to unwind the mapped irqs on a failure of any individual association. However, that proved to be a problem with certain IRQ controllers. Some of them only support a subset of irqs, and will fail when attemptin

Re: [PATCH 1/1] powerpc: Force 32 bit MSIs on systems lacking firmware support

2013-05-21 Thread Mike Qiu
于 2013/5/22 5:54, Brian King 写道: Recent commit e61133dda480062d221f09e4fc18f66763f8ecd0 added support for a new firmware feature to force an adapter to use 32 bit MSIs. However, this firmware is not available for all systems. The hack below allows devices needing 32 bit MSIs to work on these syst

Re: [PATCH 0/3] Enable multiple MSI feature in pSeries

2013-05-21 Thread Mike Qiu
于 2013/5/22 8:15, Benjamin Herrenschmidt 写道: On Tue, 2013-05-21 at 16:45 +0200, Alexander Gordeev wrote: On Tue, Jan 15, 2013 at 03:38:53PM +0800, Mike Qiu wrote: The test results is shown by 'cat /proc/interrups': CPU0 CPU1 CPU2 CPU3 16: 240458

Re: [PATCH 0/3] Enable multiple MSI feature in pSeries

2013-05-21 Thread Mike Qiu
于 2013/5/21 22:45, Alexander Gordeev 写道: On Tue, Jan 15, 2013 at 03:38:53PM +0800, Mike Qiu wrote: The test results is shown by 'cat /proc/interrups': CPU0 CPU1 CPU2 CPU3 16: 240458 261601 226310 200425 XICS Level IPI 17:

Re: [PATCH] powerpc: Fix "attempt to move .org backwards" error

2013-04-27 Thread Mike Qiu
0xa00, doorbell_super) test-by: Mike Qiu It's workable for me. but I just use this patch to compile and boot up the machine. not do any performance test:) ___ Linuxppc-dev mailing list Linuxppc-dev@lists.ozlabs.org https://lists.ozlabs.org/listinf

Re: [PATCH v2] PowerPC: kernel: compiling issue, make additional room in exception vector area

2013-04-27 Thread Mike Qiu
于 2013/4/27 17:28, Chen Gang F T 写道: On 2013年04月26日 11:54, Mike Qiu wrote: 于 2013/4/26 11:42, Chen Gang 写道: On 2013年04月26日 11:25, Chen Gang wrote: On 2013年04月26日 11:08, Mike Qiu wrote: 于 2013/4/26 10:06, Chen Gang 写道: On 2013年04月26日 10:03, Mike Qiu wrote: �� 2013/4/26 9:36, Chen Gang д

Re: [PATCH v2] PowerPC: kernel: compiling issue, make additional room in exception vector area

2013-04-25 Thread Mike Qiu
于 2013/4/26 11:42, Chen Gang 写道: On 2013年04月26日 11:25, Chen Gang wrote: On 2013年04月26日 11:08, Mike Qiu wrote: 于 2013/4/26 10:06, Chen Gang 写道: On 2013年04月26日 10:03, Mike Qiu wrote: �� 2013/4/26 9:36, Chen Gang д��: On 2013��04��26�� 09:18, Chen Gang wrote: On 2013��04��26�� 09:06, Chen

Re: "attempt to move .org backwards" still show up

2013-04-25 Thread Mike Qiu
于 2013/4/25 14:25, Paul Mackerras 写道: On Thu, Apr 25, 2013 at 12:05:54PM +0800, Mike Qiu wrote: This has block my work now So I hope you can take a look ASAP Thanks :) Mike As a quick fix, turn on CONFIG_KVM_BOOK3S_64_HV. That will eliminate the immediate problem. Thanks got it, I will have

Re: [PATCH v2] PowerPC: kernel: compiling issue, make additional room in exception vector area

2013-04-25 Thread Mike Qiu
于 2013/4/26 10:06, Chen Gang 写道: On 2013年04月26日 10:03, Mike Qiu wrote: �� 2013/4/26 9:36, Chen Gang д��: On 2013��04��26�� 09:18, Chen Gang wrote: On 2013��04��26�� 09:06, Chen Gang wrote: CFAR is the Come From Register. It saves the location of the last branch and is hence overwritten by

Re: [PATCH v2] PowerPC: kernel: compiling issue, make additional room in exception vector area

2013-04-25 Thread Mike Qiu
于 2013/4/26 9:36, Chen Gang 写道: > On 2013年04月26日 09:18, Chen Gang wrote: >> On 2013年04月26日 09:06, Chen Gang wrote: CFAR is the Come From Register. It saves the location of the last > branch and is hence overwritten by any branch. > >>> Do we process it just like others done (e.g. 0x30

Re: "attempt to move .org backwards" still show up

2013-04-25 Thread Mike Qiu
于 2013/4/25 19:16, Chen Gang 写道: On 2013年04月25日 14:25, Paul Mackerras wrote: On Thu, Apr 25, 2013 at 12:05:54PM +0800, Mike Qiu wrote: This has block my work now So I hope you can take a look ASAP Thanks :) Mike As a quick fix, turn on CONFIG_KVM_BOOK3S_64_HV. That will eliminate the

Re: [PATCH] PowerPC: kernel: compiling issue, make additional room in exception vector area

2013-04-25 Thread Mike Qiu
于 2013/4/25 16:21, Chen Gang 写道: Hello Mike: Please try this patch, at least it can pass compiling with the config file which you provided under my cross-compiling envrionments. I do not give a running test now, so better to try to run the new kernel with this patch. OK, I will use your patch,

Re: "attempt to move .org backwards" still show up

2013-04-24 Thread Mike Qiu
于 2013/4/25 9:05, Chen Gang 写道: On 2013年04月24日 20:47, Mike wrote: 在 2013-04-24三的 20:37 +1000,Michael Neuling写道: Mike Qiu wrote: 于 2013/4/24 16:31, Michael Ellerman 写道: On Wed, Apr 24, 2013 at 04:22:53PM +0800, Mike Qiu wrote: Hi all I get an error message when I compile the source code

Re: "attempt to move .org backwards" still show up

2013-04-24 Thread Mike Qiu
于 2013/4/24 16:31, Michael Ellerman 写道: On Wed, Apr 24, 2013 at 04:22:53PM +0800, Mike Qiu wrote: Hi all I get an error message when I compile the source code in Power7 platform use the newest upstream kernel. Hi Mike, It depends on what your .config is. What defconfig are you building

Re: "attempt to move .org backwards" still show up

2013-04-24 Thread Mike Qiu
于 2013/4/24 16:31, Michael Ellerman 写道: On Wed, Apr 24, 2013 at 04:22:53PM +0800, Mike Qiu wrote: Hi all I get an error message when I compile the source code in Power7 platform use the newest upstream kernel. Hi Mike, It depends on what your .config is. What defconfig are you building? I

"attempt to move .org backwards" still show up

2013-04-24 Thread Mike Qiu
Hi all I get an error message when I compile the source code in Power7 platform use the newest upstream kernel. [root@feng linux]# make -j60 CHK include/generated/uapi/linux/version.h CHK include/generated/utsrelease.h CC scripts/mod/devicetable-offsets.s GEN scripts/mod/devicetable-offsets.h HOS

Re: [PATCH 2/3] irq: Add hw continuous IRQs map to virtual continuous IRQs support

2013-03-05 Thread Mike Qiu
于 2013/3/6 13:42, Michael Ellerman 写道: On Wed, Mar 06, 2013 at 01:34:58PM +0800, Mike Qiu wrote: 于 2013/3/6 11:54, Michael Ellerman 写道: On Tue, Mar 05, 2013 at 03:19:57PM +0800, Mike Qiu wrote: 于 2013/3/5 10:23, Michael Ellerman 写道: On Tue, Jan 15, 2013 at 03:38:55PM +0800, Mike Qiu wrote

Re: [PATCH 2/3] irq: Add hw continuous IRQs map to virtual continuous IRQs support

2013-03-05 Thread Mike Qiu
于 2013/3/6 11:54, Michael Ellerman 写道: On Tue, Mar 05, 2013 at 03:19:57PM +0800, Mike Qiu wrote: 于 2013/3/5 10:23, Michael Ellerman 写道: On Tue, Jan 15, 2013 at 03:38:55PM +0800, Mike Qiu wrote: Adding a function irq_create_mapping_many() which can associate multiple MSIs to a continous irq

Re: [PATCH 2/3] irq: Add hw continuous IRQs map to virtual continuous IRQs support

2013-03-04 Thread Mike Qiu
于 2013/3/5 10:41, Paul Mundt 写道: On Tue, Jan 15, 2013 at 03:38:55PM +0800, Mike Qiu wrote: Adding a function irq_create_mapping_many() which can associate multiple MSIs to a continous irq mapping. This is needed to enable multiple MSI support for pSeries. +int irq_create_mapping_many(struct

Re: [PATCH 2/3] irq: Add hw continuous IRQs map to virtual continuous IRQs support

2013-03-04 Thread Mike Qiu
于 2013/3/5 10:23, Michael Ellerman 写道: On Tue, Jan 15, 2013 at 03:38:55PM +0800, Mike Qiu wrote: Adding a function irq_create_mapping_many() which can associate multiple MSIs to a continous irq mapping. This is needed to enable multiple MSI support for pSeries. Signed-off-by: Mike Qiu

Re: [PATCH 0/3] Enable multiple MSI feature in pSeries

2013-03-03 Thread Mike Qiu
于 2013/3/1 11:54, Michael Ellerman 写道: On Fri, Mar 01, 2013 at 11:08:45AM +0800, Mike wrote: Hi all Any comments? or any questions about my patchset? You were going to get some performance numbers that show a definite benefit for using more than one MSI. Yes, but my patch just enable the kern

Re: [PATCH 0/3] Enable multiple MSI feature in pSeries

2013-02-03 Thread Mike Qiu
2013/2/4 13:56, Michael Ellerman: On Mon, 2013-02-04 at 11:49 +0800, Mike Qiu wrote: On Tue, 2013-01-15 at 15:38 +0800, Mike Qiu wrote: Currently, multiple MSI feature hasn't been enabled in pSeries, These patches try to enbale this feature. Hi Mike, These patches have been tested by

Re: [PATCH 0/3] Enable multiple MSI feature in pSeries

2013-02-03 Thread Mike Qiu
On Tue, 2013-01-15 at 15:38 +0800, Mike Qiu wrote: Currently, multiple MSI feature hasn't been enabled in pSeries, These patches try to enbale this feature. Hi Mike, These patches have been tested by using ipr driver, and the driver patch has been made by Wen Xiong : So who wrote

Re: [PATCH] powerpc/mm: Fix hash computation function

2013-01-29 Thread Mike Qiu
With the fix, the machine can boot up successfully Tested-by: Mike Qiu 于 2013/1/30 13:40, Aneesh Kumar K.V 写道: > From: "Aneesh Kumar K.V" > > The ASM version of hash computation function was truncating the upper bit. > Make the ASM version similar to hpt_hash function. Re

[PATCH 1/3] irq: Set multiple MSI descriptor data for multiple IRQs

2013-01-15 Thread Mike Qiu
Multiple MSI only requires the IRQ in msi_desc entry to be set as the value of irq_base. This patch implements the above mentioned technique. Signed-off-by: Mike Qiu --- include/linux/irq.h |2 ++ kernel/irq/chip.c | 40 ++-- 2 files changed, 32

[PATCH 3/3] powerpc/pci: Enable pSeries multiple MSI feature

2013-01-15 Thread Mike Qiu
PCI devices support MSI, MSIX as well as multiple MSI. But pSeries does not support multiple MSI yet. This patch enable multiple MSI feature in pSeries. Signed-off-by: Mike Qiu --- arch/powerpc/kernel/msi.c|4 -- arch/powerpc/platforms/pseries/msi.c | 62

[PATCH 2/3] irq: Add hw continuous IRQs map to virtual continuous IRQs support

2013-01-15 Thread Mike Qiu
Adding a function irq_create_mapping_many() which can associate multiple MSIs to a continous irq mapping. This is needed to enable multiple MSI support for pSeries. Signed-off-by: Mike Qiu --- include/linux/irq.h |2 + include/linux/irqdomain.h |3 ++ kernel/irq/irqdomain.c

[PATCH 0/3] Enable multiple MSI feature in pSeries

2013-01-15 Thread Mike Qiu
0 Machine check exceptions Mike Qiu (3): irq: Set multiple MSI descriptor data for multiple IRQs irq: Add hw continuous IRQs map to virtual continuous IRQs support powerpc/pci: Enable pSeries multiple MSI feature arch/powerpc/kernel/msi.c|4 -- arch/powerpc/platforms/pseri