RE: [PATCH 5/6 v2] kvm: powerpc: booke: Add linux pte lookup like booke3s

> -Original Message- > From: Bhushan Bharat-R65777 > Sent: Tuesday, August 06, 2013 6:42 AM > To: Wood Scott-B07421 > Cc: Benjamin Herrenschmidt; ag...@suse.de; kvm-...@vger.kernel.org; > k...@vger.kernel.org; linuxppc-dev@lists.ozlabs.org > Subject: RE: [PATCH 5/6 v2] kvm: powerpc: booke

Re: PCIE device errors after linux kernel upgrade

On Mon, Aug 05, 2013 at 09:38:45AM -0600, Bjorn Helgaas wrote: > [+cc linuxppc-dev] > > On Mon, Aug 5, 2013 at 5:17 AM, Leon Ravich wrote: > > Hi all , > > I am trying to upgrade ours embedded device (freescale powerPC P2020 cpu) > > linux kernel , till now we used 2.6.32 I am trying to upgrade t

Re: mm/slab: ppc: ubi: kmalloc_slab WARNING / PPC + UBI driver

Hi, On 31/07/13 19:04, Christoph Lameter wrote: > On Wed, 31 Jul 2013, Wladislav Wiebe wrote: > >> Thanks for the point, do you plan to make kmalloc_large available for extern >> access in a separate mainline patch? >> Since kmalloc_large is statically defined in slub_def.h and when including >

[PATCH v3 1/3] selftests: Add infrastructure for powerpc selftests

This commit adds a powerpc subdirectory to tools/testing/selftests, for tests that are powerpc specific. On other architectures nothing is built. The makefile supports cross compilation if the user sets ARCH and CROSS_COMPILE. Signed-off-by: Michael Ellerman --- v3: Add tags v2: No change tool

[PATCH v3 2/3] selftests: Add support files for powerpc tests

This commit adds support code used by upcoming powerpc tests. Signed-off-by: Michael Ellerman --- v3: Print when the child dies due to a signal v2: Put back the SIGALARM handler to make the hang logic work. tools/testing/selftests/powerpc/harness.c | 105 ++ tools/te

Re: PCIE device errors after linux kernel upgrade

On Tue, Aug 06, 2013 at 10:26:18AM +0300, Leon Ravich wrote: > Hi Johannes > no panic just reboot. > it is not the first read, it takes few minutes of work with pcie to reboot. > Ah, OK. Unfortunately I can't really help you then. Have you looked up the error values from the EDAC driver? If it's

[PATCH v3 3/3] selftests: Add test of PMU instruction counting on powerpc

This commit adds a test of instruction counting using the PMU on powerpc. Although the bulk of the code is architecture agnostic, the code needs to run a precisely sized loop which is implemented in assembler. Signed-off-by: Michael Ellerman --- v2,3: No change tools/testing/selftests/powerpc/

Re: PCIE device errors after linux kernel upgrade

Thanks Bjorn. 1) If I understand it right this patch only removes the "pci :00:00.0: ignoring class 0x0b2000 (doesn't match header type 01)" message , don't care about it , had it before . 2) regarding the comparing of printouts: kernel 3.8.13: [ 37.908846] pci_bus :00: scanning bus

Re: PCIE device errors after linux kernel upgrade

Hi Johannes no panic just reboot. it is not the first read, it takes few minutes of work with pcie to reboot. On 6 August 2013 10:07, Johannes Thumshirn wrote: > On Mon, Aug 05, 2013 at 09:38:45AM -0600, Bjorn Helgaas wrote: >> [+cc linuxppc-dev] >> >> On Mon, Aug 5, 2013 at 5:17 AM, Leon Ravic

Re: PCIE device errors after linux kernel upgrade

>> Have you looked up the error values from the EDAC driver? [ 37.961580] PCIE error(s) detected [ 37.964971] PCIE ERR_DR register: 0x0002 => Invalid CONFIG_ADDR/PEX_CONFIG_DATA access detected [ 37.969229] PCIE ERR_CAP_STAT register: 0x0041 => Transaction originated

[PATCH 0/3] powerpc: several patches for icache flush

These patches passed the build test with the following configurations. ppc40x_defconfig ppc64e_defconfig ppc64_defconfig mpc85xx_defconfig mpc85xx_smp_defconfig corenet32_smp_defconfig corenet64_smp_defconfig ppc44x_defconfig m

[PATCH 1/3] powerpc: move the testing of CPU_FTR_COHERENT_ICACHE into __flush_icache_range

In function flush_icache_range(), we use cpu_has_feature() to test the feature bit of CPU_FTR_COHERENT_ICACHE. But this seems not optimal for two reasons: a) For ppc32, the function __flush_icache_range() already do this check with the macro END_FTR_SECTION_IFSET. b) Compare with the cpu_has_

[PATCH 2/3] powerpc: remove the symbol __flush_icache_range

And now the function flush_icache_range() is just a wrapper which only invoke the function __flush_icache_range() directly. So we don't have reason to keep it anymore. Signed-off-by: Kevin Hao --- arch/powerpc/include/asm/cacheflush.h | 7 +-- arch/powerpc/kernel/misc_32.S | 2 +- ar

[PATCH 3/3] powerpc: check CPU_FTR_COHERENT_ICACHE in __flush_dcache_icache for 64bit kernel

We don't need to flush the dcache and invalidate the icache on the CPU which has CPU_FTR_COHERENT_ICACHE set. Signed-off-by: Kevin Hao --- arch/powerpc/kernel/misc_64.S | 3 +++ 1 file changed, 3 insertions(+) diff --git a/arch/powerpc/kernel/misc_64.S b/arch/powerpc/kernel/misc_64.S index a781

Re: [PATCH 1/3] powerpc: move the testing of CPU_FTR_COHERENT_ICACHE into __flush_icache_range

On Tue, 2013-08-06 at 18:23 +0800, Kevin Hao wrote: > In function flush_icache_range(), we use cpu_has_feature() to test > the feature bit of CPU_FTR_COHERENT_ICACHE. But this seems not optimal > for two reasons: > a) For ppc32, the function __flush_icache_range() already do this > check with

Re: [PATCH 3/3] powerpc: check CPU_FTR_COHERENT_ICACHE in __flush_dcache_icache for 64bit kernel

On Tue, 2013-08-06 at 18:23 +0800, Kevin Hao wrote: > We don't need to flush the dcache and invalidate the icache on the > CPU which has CPU_FTR_COHERENT_ICACHE set. Actually we probably need an isync... Ben. > Signed-off-by: Kevin Hao > --- > arch/powerpc/kernel/misc_64.S | 3 +++ > 1 file ch

[PATCH] powerpc: Convert out of line __arch_hweight to inline

Patch attempts to improve the performace of __arch_hweight functions by making them inline instead of current out of line implementation. Testcase is to disable/enable SMT on a large (192 thread) POWER7 lpar. Program used for SMT disable/enable is "ppc64_cpu" with "--smt=[off/on]" option. Here are

[PATCH 2/6 v3] kvm: powerpc: allow guest control "E" attribute in mas2

"E" bit in MAS2 bit indicates whether the page is accessed in Little-Endian or Big-Endian byte order. There is no reason to stop guest setting "E", so allow him." Signed-off-by: Bharat Bhushan --- v2->v3 - no change v1->v2 - no change arch/powerpc/kvm/e500.h |2 +- 1 files changed, 1 inse

[PATCH 1/6 v3] powerpc: book3e: _PAGE_LENDIAN must be _PAGE_ENDIAN

For booke3e _PAGE_ENDIAN is not defined. Infact what is defined is "_PAGE_LENDIAN" which is wrong and should be _PAGE_ENDIAN. There are no compilation errors as arch/powerpc/include/asm/pte-common.h defines _PAGE_ENDIAN to 0 as it is not defined anywhere. Signed-off-by: Bharat Bhushan --- v2->v3

[PATCH 0/6 v3] kvm: powerpc: use cache attributes from linux pte

From: Bharat Bhushan First patch is a typo fix where book3e define _PAGE_LENDIAN while it should be defined as _PAGE_ENDIAN. This seems to show that this is never exercised :-) Second and third patch is to allow guest controlling "G"-Guarded and "E"-Endian TLB attributes respectively. Fourth an

[PATCH 3/6 v3] kvm: powerpc: allow guest control "G" attribute in mas2

"G" bit in MAS2 indicates whether the page is Guarded. There is no reason to stop guest setting "G", so allow him. Signed-off-by: Bharat Bhushan --- v2->v3 - no change v1->v2 - no change arch/powerpc/kvm/e500.h |2 +- 1 files changed, 1 insertions(+), 1 deletions(-) diff --git a/arch/pow

[PATCH 4/6 v3] powerpc: move linux pte/hugepte search to more generic file

Linux pte search functions find_linux_pte_or_hugepte() and find_linux_pte() have nothing specific to 64bit anymore. So they are move from pgtable-ppc64.h to asm/pgtable.h Signed-off-by: Bharat Bhushan --- v2->v3 - no change v1->v2 - This is a new change in this version arch/powerpc/include/a

[PATCH 6/6 v3] kvm: powerpc: use caching attributes as per linux pte

KVM uses same WIM tlb attributes as the corresponding qemu pte. For this we now search the linux pte for the requested page and get these cache caching/coherency attributes from pte. Signed-off-by: Bharat Bhushan --- v2->v3 - setting pgdir before kvmppc_fix_ee_before_entry() on vcpu_run - Align

[PATCH 5/6 v3] kvm: powerpc: keep only pte search logic in lookup_linux_pte

lookup_linux_pte() was searching for a pte and also sets access flags is writable. This function now searches only pte while access flag setting is done explicitly. This pte lookup is not kvm specific, so moved to common code (asm/pgtable.h) My Followup patch will use this on booke. Signed-off-by

RE: [PATCH 5/6 v2] kvm: powerpc: booke: Add linux pte lookup like booke3s

> -Original Message- > From: Wood Scott-B07421 > Sent: Tuesday, August 06, 2013 12:49 AM > To: Bhushan Bharat-R65777 > Cc: Benjamin Herrenschmidt; Wood Scott-B07421; ag...@suse.de; kvm- > p...@vger.kernel.org; k...@vger.kernel.org; linuxppc-dev@lists.ozlabs.org > Subject: Re: [PATCH 5/6 v

Re: mm/slab: ppc: ubi: kmalloc_slab WARNING / PPC + UBI driver

On Tue, 6 Aug 2013, Wladislav Wiebe wrote: > ok, just saw in slab/for-linus branch that those stuff is reverted again.. No that was only for the 3.11 merge by Linus. The 3.12 patches have not been put into pekkas tree. ___ Linuxppc-dev mailing list Linu

[PATCH 00/63] 64bit PowerPC little endian support

This patchset adds support for building a 64bit PowerPC little endian kernel. binutils and gcc support (powerpcle/powerpc64le) is already upstream. For gcc you can use gcc tip, or for the less adventurous the gcc 4.8 branch works too. QEMU patches to boot a little endian kernel will be posted ove

[PATCH 01/63] powerpc: Align p_toc

p_toc is an 8 byte relative offset to the TOC that we place in the text section. This means it is only 4 byte aligned where it should be 8 byte aligned. Add an explicit alignment. Signed-off-by: Anton Blanchard --- arch/powerpc/kernel/head_64.S | 1 + 1 file changed, 1 insertion(+) diff --git a

[PATCH 03/63] powerpc: Wrap MSR macros with parentheses

Not having parentheses around a macro is asking for trouble. Signed-off-by: Anton Blanchard --- arch/powerpc/include/asm/reg.h | 8 arch/powerpc/include/asm/reg_booke.h | 8 2 files changed, 8 insertions(+), 8 deletions(-) diff --git a/arch/powerpc/include/asm/reg.h b/ar

[PATCH 04/63] powerpc: Remove SAVE_VSRU and REST_VSRU macros

We always use VMX loads and stores to manage the high 32 VSRs. Remove these unused macros. Signed-off-by: Anton Blanchard --- arch/powerpc/include/asm/ppc_asm.h | 13 - 1 file changed, 13 deletions(-) diff --git a/arch/powerpc/include/asm/ppc_asm.h b/arch/powerpc/include/asm/ppc_as

[PATCH 07/63] powerpc: Fix a number of sparse warnings

Address some of the trivial sparse warnings in arch/powerpc. Signed-off-by: Anton Blanchard --- arch/powerpc/kernel/legacy_serial.c | 2 +- arch/powerpc/kernel/pci-common.c| 4 ++-- arch/powerpc/kernel/pci_64.c| 2 +- arch/powerpc/kernel/setup_64.c

[PATCH 05/63] powerpc: Simplify logic in include/uapi/asm/elf.h

Simplify things by putting all the 32bit and 64bit defines together instead of in two spots. Signed-off-by: Anton Blanchard --- arch/powerpc/include/uapi/asm/elf.h | 19 +++ 1 file changed, 7 insertions(+), 12 deletions(-) diff --git a/arch/powerpc/include/uapi/asm/elf.h b/arch

[PATCH 06/63] powerpc/pseries: Simplify H_GET_TERM_CHAR

plpar_get_term_char is only used once and just adds a layer of complexity to H_GET_TERM_CHAR. plpar_put_term_char isn't used at all so we can remove it. Signed-off-by: Anton Blanchard --- arch/powerpc/platforms/pseries/hvconsole.c | 12 +--- arch/powerpc/platforms/pseries/plpar_wrap

[PATCH 08/63] powerpc/pci: Don't use bitfield for force_32bit_msi

Fix a sparse warning about force_32bit_msi being a one bit bitfield. Signed-off-by: Anton Blanchard --- arch/powerpc/include/asm/pci-bridge.h | 2 +- arch/powerpc/kernel/pci_64.c | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) diff --git a/arch/powerpc/include/asm/pci-bridge.h

[PATCH 10/63] powerpc: Make prom.c device tree accesses endian safe

From: Ian Munsie On PowerPC the device tree is always big endian, but the CPU could be either, so add be32_to_cpu where appropriate and change the types of device tree data to __be32 etc to allow sparse to locate endian issues. Signed-off-by: Ian Munsie Acked-by: Grant Likely --- arch/powerpc

[PATCH 09/63] powerpc: Stop using non-architected shared_proc field in lppaca

Although the shared_proc field in the lppaca works today, it is not architected. A shared processor partition will always have a non zero yield_count so use that instead. Create a wrapper so users don't have to know about the details. In order for older kernels to continue to work on KVM we need t

[PATCH 11/63] powerpc: More little endian fixes for prom.c

From: Alistair Popple Signed-off-by: Alistair Popple --- arch/powerpc/kernel/prom.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/arch/powerpc/kernel/prom.c b/arch/powerpc/kernel/prom.c index d072f67..987a4fb 100644 --- a/arch/powerpc/kernel/prom.c +++ b/arch/powerpc/k

[PATCH 13/63] powerpc: Make cache info device tree accesses endian safe

Signed-off-by: Anton Blanchard --- arch/powerpc/kernel/setup_64.c | 10 +- 1 file changed, 5 insertions(+), 5 deletions(-) diff --git a/arch/powerpc/kernel/setup_64.c b/arch/powerpc/kernel/setup_64.c index b3b5fd3..00dfcc5 100644 --- a/arch/powerpc/kernel/setup_64.c +++ b/arch/powerpc/ke

[PATCH 12/63] powerpc: Make RTAS device tree accesses endian safe

Signed-off-by: Anton Blanchard --- arch/powerpc/kernel/rtas.c | 28 ++-- 1 file changed, 14 insertions(+), 14 deletions(-) diff --git a/arch/powerpc/kernel/rtas.c b/arch/powerpc/kernel/rtas.c index 80b5ef4..98b26af 100644 --- a/arch/powerpc/kernel/rtas.c +++ b/arch/powerp

[PATCH 15/63] powerpc: Make logical to real cpu mapping code endian safe

Signed-off-by: Anton Blanchard --- arch/powerpc/kernel/setup-common.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/arch/powerpc/kernel/setup-common.c b/arch/powerpc/kernel/setup-common.c index 63d051f..ee0e055 100644 --- a/arch/powerpc/kernel/setup-common.c +++ b/arc

[PATCH 14/63] powerpc: Make RTAS calls endian safe

RTAS expects arguments in the call buffer to be big endian so we need to byteswap on little endian builds Signed-off-by: Anton Blanchard --- arch/powerpc/include/asm/rtas.h | 8 arch/powerpc/kernel/rtas.c | 38 +++--- 2 files changed, 23 insertions(

[PATCH 02/63] powerpc: handle unaligned ldbrx/stdbrx

Normally when we haven't implemented an alignment handler for a load or store instruction the process will be terminated. The alignment handler uses the DSISR (or a pseudo one) to locate the right handler. Unfortunately ldbrx and stdbrx overlap lfs and stfs so we incorrectly think ldbrx is an lfs

[PATCH 16/63] powerpc: More little endian fixes for setup-common.c

From: Alistair Popple Signed-off-by: Alistair Popple --- arch/powerpc/kernel/setup-common.c | 7 +-- 1 file changed, 5 insertions(+), 2 deletions(-) diff --git a/arch/powerpc/kernel/setup-common.c b/arch/powerpc/kernel/setup-common.c index ee0e055..3d261c0 100644 --- a/arch/powerpc/kernel

[PATCH 18/63] powerpc: Fix some endian issues in xics code

Signed-off-by: Anton Blanchard --- arch/powerpc/sysdev/xics/xics-common.c | 10 +- 1 file changed, 5 insertions(+), 5 deletions(-) diff --git a/arch/powerpc/sysdev/xics/xics-common.c b/arch/powerpc/sysdev/xics/xics-common.c index 9049d9f..fe0cca4 100644 --- a/arch/powerpc/sysdev/xics/xi

[PATCH 17/63] powerpc: Add some endian annotations to time and xics code

Fix a couple of sparse warnings. Signed-off-by: Anton Blanchard --- arch/powerpc/kernel/time.c| 2 +- arch/powerpc/sysdev/xics/icp-native.c | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) diff --git a/arch/powerpc/kernel/time.c b/arch/powerpc/kernel/time.c index 65ab9e9..c8

[PATCH 20/63] powerpc: Make device tree accesses in cache info code endian safe

Signed-off-by: Anton Blanchard --- arch/powerpc/kernel/cacheinfo.c | 12 ++-- 1 file changed, 6 insertions(+), 6 deletions(-) diff --git a/arch/powerpc/kernel/cacheinfo.c b/arch/powerpc/kernel/cacheinfo.c index 9262cf2..6549327 100644 --- a/arch/powerpc/kernel/cacheinfo.c +++ b/arch/powe

[PATCH 19/63] powerpc: of_parse_dma_window should take a __be32 *dma_window

We pass dma_window to of_parse_dma_window as a void * and then run through hoops to cast it back to a u32 array. In the process we lose endian annotation. Simplify it by just passing a __be32 * down. Signed-off-by: Anton Blanchard --- arch/powerpc/include/asm/prom.h| 5 +++-- arch/powe

[PATCH 21/63] powerpc: Make prom_init.c endian safe

From: Benjamin Herrenschmidt Signed-off-by: Benjamin Herrenschmidt Signed-off-by: Anton Blanchard --- arch/powerpc/kernel/prom_init.c | 253 +++- 1 file changed, 147 insertions(+), 106 deletions(-) diff --git a/arch/powerpc/kernel/prom_init.c b/arch/powerpc

[PATCH 22/63] powerpc: Make device tree accesses in HVC VIO console endian safe

Signed-off-by: Anton Blanchard --- drivers/tty/hvc/hvc_vio.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/tty/hvc/hvc_vio.c b/drivers/tty/hvc/hvc_vio.c index 0c62980..c791b18 100644 --- a/drivers/tty/hvc/hvc_vio.c +++ b/drivers/tty/hvc/hvc_vio.c @@ -404,7 +404,7

[PATCH 24/63] powerpc: Make OF PCI device tree accesses endian safe

Signed-off-by: Anton Blanchard --- arch/powerpc/kernel/pci-common.c | 6 +++--- arch/powerpc/kernel/pci_of_scan.c | 23 +-- 2 files changed, 16 insertions(+), 13 deletions(-) diff --git a/arch/powerpc/kernel/pci-common.c b/arch/powerpc/kernel/pci-common.c index 22fe401..7d7

[PATCH 23/63] powerpc: Make device tree accesses in VIO subsystem endian safe

Signed-off-by: Anton Blanchard --- arch/powerpc/kernel/vio.c | 31 +-- 1 file changed, 17 insertions(+), 14 deletions(-) diff --git a/arch/powerpc/kernel/vio.c b/arch/powerpc/kernel/vio.c index 31875a6..78a3506 100644 --- a/arch/powerpc/kernel/vio.c +++ b/arch/powerpc

[PATCH 25/63] powerpc: Make PCI device node device tree accesses endian safe

Signed-off-by: Anton Blanchard --- arch/powerpc/kernel/pci_dn.c | 20 +++- 1 file changed, 11 insertions(+), 9 deletions(-) diff --git a/arch/powerpc/kernel/pci_dn.c b/arch/powerpc/kernel/pci_dn.c index df03844..1f61fab 100644 --- a/arch/powerpc/kernel/pci_dn.c +++ b/arch/powerpc

[PATCH 26/63] powerpc: Little endian fixes for legacy_serial.c

From: Alistair Popple Signed-off-by: Alistair Popple --- arch/powerpc/kernel/legacy_serial.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/arch/powerpc/kernel/legacy_serial.c b/arch/powerpc/kernel/legacy_serial.c index af1c63f..179beea 100644 --- a/arch/powerpc/kern

[PATCH 27/63] powerpc: Make NUMA device node code endian safe

From: Alistair Popple The device tree is big endian so make sure we byteswap on little endian. We assume any pHyp calls also return big endian results in memory. Signed-off-by: Alistair Popple --- arch/powerpc/mm/numa.c | 100 + 1 file changed, 5

[PATCH 30/63] powerpc: Emulate instructions in little endian mode

Alistair noticed we got a SIGILL on userspace mfpvr instructions. Remove the little endian check in the emulation code, it is probably there to protect against the old pseudo little endian implementations but doesn't make sense for real little endian. Signed-off-by: Anton Blanchard --- arch/pow

[PATCH 29/63] powerpc: Fix little endian lppaca, slb_shadow and dtl_entry

The lppaca, slb_shadow and dtl_entry hypervisor structures are big endian, so we have to byte swap them in little endian builds. LE KVM hosts will also need to be fixed but for now add an #error to remind us. Signed-off-by: Anton Blanchard --- arch/powerpc/include/asm/asm-compat.h |

[PATCH 31/63] powerpc: Little endian SMP IPI demux

Add little endian support for demuxing SMP IPIs Signed-off-by: Anton Blanchard --- arch/powerpc/kernel/smp.c | 19 ++- 1 file changed, 10 insertions(+), 9 deletions(-) diff --git a/arch/powerpc/kernel/smp.c b/arch/powerpc/kernel/smp.c index 98822400..bcdb706 100644 --- a/arch/po

[PATCH 32/63] powerpc/pseries: Fix endian issues in H_GET_TERM_CHAR/H_PUT_TERM_CHAR

Signed-off-by: Anton Blanchard --- arch/powerpc/platforms/pseries/hvconsole.c | 9 + 1 file changed, 5 insertions(+), 4 deletions(-) diff --git a/arch/powerpc/platforms/pseries/hvconsole.c b/arch/powerpc/platforms/pseries/hvconsole.c index aa0aa37..ef6d59a 100644 --- a/arch/powerpc/plat

[PATCH 33/63] powerpc: Fix little endian coredumps

We need to set ELF_DATA correctly on LE coredumps. Signed-off-by: Anton Blanchard --- arch/powerpc/include/uapi/asm/elf.h | 8 ++-- 1 file changed, 6 insertions(+), 2 deletions(-) diff --git a/arch/powerpc/include/uapi/asm/elf.h b/arch/powerpc/include/uapi/asm/elf.h index 89fa042..7e39c91

[PATCH 34/63] powerpc: Make rwlocks endian safe

Our ppc64 spinlocks and rwlocks use a trick where a lock token and the paca index are placed in the lock with a single store. Since we are using two u16s they need adjusting for little endian. Signed-off-by: Anton Blanchard --- arch/powerpc/include/asm/paca.h | 5 + arch/powerpc/incl

[PATCH 35/63] powerpc: Fix endian issues in VMX copy loops

Fix the permute loops for little endian. Signed-off-by: Anton Blanchard --- arch/powerpc/lib/copyuser_power7.S | 54 + arch/powerpc/lib/memcpy_power7.S | 55 ++ 2 files changed, 63 insertions(+), 46 deletions(-) diff --gi

[PATCH 38/63] powerpc: PTRACE_PEEKUSR/PTRACE_POKEUSER of FPR registers in little endian builds

FPRs overlap the high 64bits of the first 32 VSX registers. The ptrace FP read/write code assumes big endian ordering and grabs the lowest 64 bits. Fix this by using the TS_FPR macro which does the right thing. Signed-off-by: Anton Blanchard --- arch/powerpc/kernel/ptrace.c | 8 1 file

[PATCH 37/63] powerpc: Fix offset of FPRs in VSX registers in little endian builds

The FPRs overlap the high doublewords of the first 32 VSX registers. Fix TS_FPROFFSET and TS_VSRLOWOFFSET so we access the correct fields in little endian mode. If VSX is disabled the FPRs are only one doubleword in length so TS_FPROFFSET needs adjusting in little endian. Signed-off-by: Anton Bla

[PATCH 36/63] powerpc: Book 3S MMU little endian support

Signed-off-by: Anton Blanchard --- arch/powerpc/include/asm/mmu-hash64.h | 4 +-- arch/powerpc/mm/hash_native_64.c | 46 --- arch/powerpc/mm/hash_utils_64.c | 38 ++--- 3 files changed, 46 insertions(+), 42 deletions(-) diff --g

[PATCH 39/63] powerpc: Little endian builds double word swap VSX state during context save/restore

The elements within VSX loads and stores are big endian ordered regardless of endianness. Our VSX context save/restore code uses lxvd2x and stxvd2x which is a 2x doubleword operation. This means the two doublewords will be swapped and we have to perform another swap to undo it. We need to do this

[PATCH 40/63] powerpc: Support endian agnostic MMIO

From: Ian Munsie This patch maps the MMIO functions for 32bit PowerPC to their appropriate instructions depending on CPU endianness. The macros used to create the corresponding inline functions are also renamed by this patch. Previously they had BE or LE in their names which was misleading - the

[PATCH 28/63] powerpc: Add endian annotations to lppaca, slb_shadow and dtl_entry

Add endian annotation to various hypervisor structures which are defined as big endian. Signed-off-by: Anton Blanchard --- arch/powerpc/include/asm/lppaca.h | 50 +++ 1 file changed, 25 insertions(+), 25 deletions(-) diff --git a/arch/powerpc/include/asm/lppa

[PATCH 41/63] powerpc: Add little endian support for word-at-a-time functions

The powerpc word-at-a-time functions are big endian specific. Bring in the x86 version in order to support little endian builds. Signed-off-by: Anton Blanchard --- arch/powerpc/include/asm/word-at-a-time.h | 71 +++ 1 file changed, 71 insertions(+) diff --git a/arch/

[PATCH 42/63] powerpc: Set MSR_LE bit on little endian builds

We need to set MSR_LE in kernel and userspace for little endian builds Signed-off-by: Anton Blanchard --- arch/powerpc/include/asm/reg.h | 7 ++- 1 file changed, 6 insertions(+), 1 deletion(-) diff --git a/arch/powerpc/include/asm/reg.h b/arch/powerpc/include/asm/reg.h index a312e0c..4e5708

[PATCH 43/63] powerpc: Reset MSR_LE on signal entry

We always take signals in big endian which is wrong. Signals should be taken in native endian. Signed-off-by: Anton Blanchard --- arch/powerpc/kernel/signal_32.c | 3 ++- arch/powerpc/kernel/signal_64.c | 3 ++- 2 files changed, 4 insertions(+), 2 deletions(-) diff --git a/arch/powerpc/kernel/s

[PATCH 44/63] powerpc: Include the appropriate endianness header

From: Ian Munsie This patch will have powerpc include the appropriate generic endianness header depending on what the compiler reports. Signed-off-by: Ian Munsie Signed-off-by: Anton Blanchard --- arch/powerpc/include/uapi/asm/byteorder.h | 4 1 file changed, 4 insertions(+) diff --git

[PATCH 45/63] powerpc: endian safe trampoline

From: Benjamin Herrenschmidt Create a trampoline that works in either endian and flips to the expected endian. Use it for primary and secondary thread entry as well as RTAS and OF call return. Signed-off-by: Benjamin Herrenschmidt Signed-off-by: Anton Blanchard --- arch/powerpc/include/asm/pp

[PATCH 46/63] powerpc: Add endian safe trampoline to pseries secondary thread entry

We might need to flip endian when starting secondary threads via RTAS. Signed-off-by: Anton Blanchard --- arch/powerpc/kernel/head_64.S | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/powerpc/kernel/head_64.S b/arch/powerpc/kernel/head_64.S index 065d10f..2ae41ab 100644 --- a/arch/power

[PATCH 47/63] pseries: Add H_SET_MODE to change exception endianness

On little endian builds call H_SET_MODE so exceptions have the correct endianness. We need a better hook to handle flipping back into big endian mode on a kexec, but insert it into the mmu teardown callback for now. Signed-off-by: Anton Blanchard --- arch/powerpc/include/asm/hvcall.h

[PATCH 48/63] powerpc/kvm/book3s_hv: Add little endian guest support

Add support for the H_SET_MODE hcall so we can select the endianness of our exceptions. We create a guest MSR from scratch when delivering exceptions in a few places and instead of extracting the LPCR[ILE] and inserting it into MSR_LE each time simply create a new variable intr_msr which contains

[PATCH 49/63] powerpc: Remove open coded byte swap macro in alignment handler

Use swab64/32/16 instead of open coding it. Signed-off-by: Anton Blanchard --- arch/powerpc/kernel/align.c | 36 1 file changed, 12 insertions(+), 24 deletions(-) diff --git a/arch/powerpc/kernel/align.c b/arch/powerpc/kernel/align.c index 52e5758..573728b 1

[PATCH 50/63] powerpc: Remove hard coded FP offsets in alignment handler

The alignment handler assumes big endian ordering when selecting the low word of a 64bit floating point value. Use the existing union which works in both little and big endian. Signed-off-by: Anton Blanchard --- arch/powerpc/kernel/align.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-

[PATCH 51/63] powerpc: Alignment handler shouldn't access VSX registers with TS_FPR

The TS_FPR macro selects the FPR component of a VSX register (the high doubleword). emulate_vsx is using this macro to get the address of the associated VSX register. This happens to work on big endian, but fails on little endian. Replace it with an explicit array access. Signed-off-by: Anton Bla

[PATCH 52/63] powerpc: Add little endian support to alignment handler

Handle most unaligned load and store faults in little endian mode. Strings, multiples and VSX are not supported. Signed-off-by: Anton Blanchard --- arch/powerpc/kernel/align.c | 93 ++--- 1 file changed, 63 insertions(+), 30 deletions(-) diff --git a/arch

[PATCH 53/63] powerpc: Handle VSX alignment faults in little endian mode

Things are complicated by the fact that VSX elements are big endian ordered even in little endian mode. 8 byte loads and stores also write to the top 8 bytes of the register. Signed-off-by: Anton Blanchard --- arch/powerpc/kernel/align.c | 41 + 1 file cha

[PATCH 55/63] ibmvscsi: Fix little endian issues

The hypervisor is big endian, so little endian kernel builds need to byteswap. Signed-off-by: Anton Blanchard --- drivers/scsi/ibmvscsi/ibmvscsi.c | 153 ++- drivers/scsi/ibmvscsi/viosrp.h | 46 ++-- 2 files changed, 108 insertions(+), 91 deletions(

[PATCH 54/63] ibmveth: Fix little endian issues

The hypervisor is big endian, so little endian kernel builds need to byteswap. Signed-off-by: Anton Blanchard --- drivers/net/ethernet/ibm/ibmveth.c | 4 ++-- drivers/net/ethernet/ibm/ibmveth.h | 19 --- 2 files changed, 18 insertions(+), 5 deletions(-) diff --git a/drivers/net

[PATCH 56/63] [SCSI] lpfc: Don't force CONFIG_GENERIC_CSUM on

We want ppc64 to be able to select between optimised assembly checksum routines in big endian, and the generic lib/checksum.c routines in little endian. The lpfc driver is forcing CONFIG_GENERIC_CSUM on which means we are unable to make the choice of when to enable and disable it in the arch Kconf

[PATCH 57/63] powerpc: Use generic checksum code in little endian

We need to fix some endian issues in our checksum code. For now just enable the generic checksum routines for little endian builds. Signed-off-by: Anton Blanchard --- arch/powerpc/Kconfig| 3 +++ arch/powerpc/include/asm/checksum.h | 5 + arch/powerpc/kernel/ppc_ksyms.c |

[PATCH 58/63] powerpc: Use generic memcpy code in little endian

We need to fix some endian issues in our memcpy code. For now just enable the generic memcpy routine for little endian builds. Signed-off-by: Anton Blanchard --- arch/powerpc/include/asm/string.h | 4 arch/powerpc/kernel/ppc_ksyms.c | 2 ++ arch/powerpc/lib/Makefile | 9 ++---

[PATCH 59/63] powerpc: uname should return ppc64le/ppcle on little endian builds

We need to distinguish between big endian and little endian environments, so fix uname to return the right thing. Signed-off-by: Anton Blanchard --- arch/powerpc/Makefile | 13 +++-- 1 file changed, 11 insertions(+), 2 deletions(-) diff --git a/arch/powerpc/Makefile b/arch/powerpc/Makef

[PATCH 60/63] powerpc: Add ability to build little endian kernels

From: Ian Munsie This patch allows the kbuild system to successfully compile a kernel for the little endian PowerPC64 architecture. To build such a kernel a supported platform must be used and CONFIG_CPU_LITTLE_ENDIAN must be set. If cross compiling, CROSS_COMPILE must point to a suitable toolch

[PATCH 61/63] powerpc: Don't set HAVE_EFFICIENT_UNALIGNED_ACCESS on little endian builds

POWER7 takes alignment exceptions on some unaligned addresses, so disable HAVE_EFFICIENT_UNALIGNED_ACCESS. This fixes an early boot issue in the printk code. Signed-off-by: Anton Blanchard --- arch/powerpc/Kconfig | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/powerpc/K

[PATCH 62/63] powerpc: Work around little endian gcc bug

Temporarily work around an ICE we are seeing while building in little endian mode: http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57134 Signed-off-by: Anton Blanchard --- arch/powerpc/Makefile | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/powerpc/Makefile b/arch/powerpc/

[PATCH 63/63] powerpc: Add pseries_le_defconfig

This is the pseries_defconfig with CONFIG_CPU_LITTLE_ENDIAN enabled and CONFIG_VIRTUALIZATION disabled (required until we fix some endian issues in KVM). Signed-off-by: Anton Blanchard --- arch/powerpc/configs/pseries_le_defconfig | 347 ++ 1 file changed, 347 inserti

[PATCH] powerpc: Ignore zImage.epapr

From: Mark Brown This is another file we can generate so add it to the list. Signed-off-by: Mark Brown --- arch/powerpc/boot/.gitignore | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/powerpc/boot/.gitignore b/arch/powerpc/boot/.gitignore index c32ae5c..554734f 100644 --- a/arch/power

Re: Failure to detect PCI card

On Mon, 5 Aug 2013 16:14:29 -0700 Peter LaDow wrote: ... > Perhaps it is a BIOS option ROM like you suggested earlier. The > 3c90xC reference manual I found > (http://people.freebsd.org/~wpaul/3Com/3c90xc.pdf) mentions an option > ROM (and there is an Atmel part stuffed). I can't find any techni

[PATCH v4 00/31] add COMMON_CLK support for PowerPC MPC512x

this series - fixes several drivers that are used in the MPC512x platform (UART, SPI, ethernet, PCI, USB, CAN, NAND flash, video capture) in how they handle clocks (appropriately acquire and setup them, hold references during use, release clocks after use) - introduces support for the common

[PATCH v4 01/31] spi: mpc512x: cleanup clock API use

cleanup the MPC512x SoC's SPI master's use of the clock API - get, prepare, and enable the MCLK during probe; disable, unprepare and put the MCLK upon remove; hold a reference to the clock over the period of use - fetch MCLK rate (reference) once during probe and slightly reword BCLK (bitrate

[PATCH v4 02/31] serial: mpc512x: cleanup clock API use

cleanup the clock API use of the UART driver which is shared among the MPC512x and the MPC5200 platforms - get, prepare, and enable the MCLK during port allocation; disable, unprepare and put the MCLK upon port release; hold a reference to the clock over the period of use; check for and propaga

[PATCH v4 04/31] mtd: mpc5121_nfc: cleanup clock API use

use devm_clk_get() for automatic put after device close, check for and propagate errors when enabling clocks, need to prepare clocks before they can get enabled, adjust error code paths to correctly balance get/put and prepare/unprepare and enable/disable calls Signed-off-by: Gerhard Sittig ---

[PATCH v4 03/31] USB: fsl-mph-dr-of: cleanup clock API use

use devm_get_clk() for automatic put upon device close, check for and propagate errors when enabling clocks, must prepare clocks before they can get enabled, unprepare after disable Signed-off-by: Gerhard Sittig --- drivers/usb/host/fsl-mph-dr-of.c | 16 +--- 1 file changed, 9 inse

[PATCH v4 05/31] [media] fsl-viu: cleanup clock API use

use devm_clk_get() for automatic put after device close, check for and propagate errors when enabling clocks, need to prepare clocks before they can get enabled, adjust code paths to correctly balance get/put and prepare/unprepare and enable/disable calls Signed-off-by: Gerhard Sittig --- driver

Re: [PATCH 3/8] Add all memory via sysfs probe interface at once

On 08/04/2013 10:13 PM, Michael Ellerman wrote: > On Fri, Aug 02, 2013 at 02:13:06PM -0500, Nathan Fontenot wrote: >> On 08/01/2013 09:32 PM, Michael Ellerman wrote: >>> On Wed, Jul 24, 2013 at 01:37:47PM -0500, Nathan Fontenot wrote: When doing memory hot add via the 'probe' interface in sysf

[PATCH v4 06/31] i2c: mpc: cleanup clock API use

make the MPC I2C driver get, prepare and enable the peripheral clock during probe ('per' for access to the peripheral's registers); disable and unprepare the clock upon remove(), put is done by the devm approach; hold a reference to the clock over the period of use clock lookup is non-fatal in thi

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