On Fri, 8 Nov 2013, pegasus wrote:
Hello.
I was reading the source code for the debug exception under powerpc. I saw
that BookE processors stop before (actually) taking a branch. Hence in order
to force it to take that branch and then stop, the source code for it had to
be hacked' to
On Fri, Nov 8, 2013 at 7:12 PM, Paul Mackerras pau...@samba.org wrote:
On Fri, Nov 08, 2013 at 10:44:16AM +0800, Liu Ping Fan wrote:
syscall is a very common behavior inside guest, and this patch
optimizes the path for the emulation of BOOK3S_INTERRUPT_SYSCALL,
so hypervisor can return to
On Fri, Nov 8, 2013 at 6:58 PM, Paul Mackerras pau...@samba.org wrote:
On Fri, Nov 08, 2013 at 03:29:52PM +0800, Liu Ping Fan wrote:
v2-v3:
introduce kvmppc_hv_unlock_hpte() to pair with kvmppc_hv_find_lock_hpte()
and hide the preemption detail inside this pair from the callers
Actually,
-Original Message-
From: Wang Dongsheng-B40534
Sent: Thursday, November 07, 2013 10:13 AM
To: Wood Scott-B07421
Cc: Bhushan Bharat-R65777; linuxppc-dev@lists.ozlabs.org
Subject: RE: [PATCH v5 4/4] powerpc/85xx: add sysfs for pw20 state and
altivec idle
-Original
* ! This series of patches has a direct dependency between them. When
* ! applying them, we need to apply to one single branch. Otherwise,
* ! it would break currect branches.
Changelog
v6:
* PATCH-1: Use goto err_firmware instead of return directly.
*
* Nothing changes for the other three
On i.MX5/6 series, SDMA is using new version firmware to support SSI
dual FIFO feature and HDMI Audio (i.MX6Q/DL only). Thus add it.
Signed-off-by: Nicolin Chen b42...@freescale.com
---
drivers/dma/imx-sdma.c | 15 ++-
include/linux/platform_data/dma-imx-sdma.h |
This patch adds a new DMA_TYPE for SSI dual FIFO script, included
in SDMA firmware version 2. This script would allow SSI use dual
fifo mode to transimit/receive data without occasional hardware
underrun/overrun.
Signed-off-by: Nicolin Chen b42...@freescale.com
---
By enabling dual fifo mode, it would allow SSI enter a better performance
to transimit/receive data without occasional hardware underrun/overrun.
Signed-off-by: Nicolin Chen b42...@freescale.com
---
sound/soc/fsl/fsl_ssi.c | 27 ++-
1 file changed, 26 insertions(+), 1
Use dual-fifo sdma scripts instead of shared scripts for ssi on i.MX series.
Signed-off-by: Nicolin Chen b42...@freescale.com
---
arch/arm/boot/dts/imx51.dtsi | 4 ++--
arch/arm/boot/dts/imx53.dtsi | 4 ++--
arch/arm/boot/dts/imx6qdl.dtsi | 12 ++--
arch/arm/boot/dts/imx6sl.dtsi |
Those codes just for discuss with Bharat. He want to make one flow at
show_pw20_wait_time/ show_altivec_idle_wait_time function. If we
do that, we need to initialize pw20_wt/altivec_idle_wt.
I will keep this stuff at show_pw20_wait_time/show_altivec_idle_wait_time
and add a comment
This patch series replaces the hardcoded iommu page sizes used by the iommu
backend with a dynamic page size initialised by each platform. This will make
it easier to use iommu page sizes other than 4K.
The series doesn't actually change the iommu page size as each platform
continues to
The powerpc iommu uses a hardcoded page size of 4K. This patch changes
the name of the IOMMU_PAGE_* macros to reflect the hardcoded values. A
future patch will use the existing names to support dynamic page
sizes.
Signed-off-by: Alistair Popple alist...@popple.id.au
---
This patch adds a it_page_shift field to struct iommu_table and
initiliases it to 4K for all platforms.
Signed-off-by: Alistair Popple alist...@popple.id.au
---
arch/powerpc/include/asm/iommu.h |1 +
arch/powerpc/kernel/vio.c |5 +++--
This patch updates the generic iommu backend code to use the
it_page_shift field to determine the iommu page size instead of
using hardcoded values.
Signed-off-by: Alistair Popple alist...@popple.id.au
---
arch/powerpc/include/asm/iommu.h | 19 +---
arch/powerpc/kernel/dma-iommu.c|
This patch series consolidates the backend cpuidle driver for pSeries
and powernv platforms with minimal code duplication.
Current existing backend driver for pseries has been moved to drivers/cpuidle
and has been extended to accommodate powernv idle power mgmt states.
As seen in V1 of this
Move the file from arch specific pseries/processor_idle.c
to drivers/cpuidle/cpuidle-powerpc-book3s.c
Make the relevant Makefile and Kconfig changes.
This will enable having a common backend cpuidle driver
for POWERPC-BOOK3S platform going forward.
Signed-off-by: Deepthi Dharwar
This patch replaces the cpuidle driver and devices initialisation
calls with a single generic cpuidle_register() call
and also includes minor refactoring of the code around it.
Signed-off-by: Deepthi Dharwar deep...@linux.vnet.ibm.com
Acked-by: Daniel Lezcano daniel.lezc...@linaro.org
---
From: Rob Herring rob.herr...@calxeda.com
Commit b5b4bb3f6a11f9 (of: only include prom.h on sparc) removed implicit
includes of of_*.h headers by powerpc's prom.h. Some PPC4xx components
were missed in initial clean-up patch, so add the necessary includes
to fix ppc4xx builds.
Signed-off-by: Rob
Currently pseries_idle cpuidle backend driver cannot be
built as a module due to dependencies. Therefore the driver has
to be built in. The dependency is around update_snooze_delay() defined
in cpuidle driver and called from kernel/sysfs.c.
This patch is removes all the module related code.
This patch removes the usage of MAX_IDLE_STATE macro
and dead code around it. The number of states
are determined at run time based on the cpuidle
state table selected on a given platform
Signed-off-by: Deepthi Dharwar deep...@linux.vnet.ibm.com
Acked-by: Daniel Lezcano daniel.lezc...@linaro.org
This patch includes cleanup and refactoring of the
existing code to make the driver POWERPC-BOOK3S generic.
* Re-naming the functions from pseries to generic powerpc-book3s.
* Re-naming the backend driver from pseries_idle to
powerpc_book3s_idle.
Signed-off-by: Deepthi Dharwar
The following patch extends the current powerpc-book3s backend
idle driver to the powernv platform.
Signed-off-by: Deepthi Dharwar deep...@linux.vnet.ibm.com
Acked-by: Daniel Lezcano daniel.lezc...@linaro.org
---
drivers/cpuidle/cpuidle-powerpc-book3s.c | 39 --
1
This patch enables idle cpu on the powernv platform to hook on to the cpuidle
framework, if available, else call on to default idle platform
code.
Signed-off-by: Deepthi Dharwar deep...@linux.vnet.ibm.com
Acked-by: Daniel Lezcano daniel.lezc...@linaro.org
---
Thanks James.
So it means that, the NIP that I am seeing in the printks is indeed correct.
Right? And this is due to the pipelining feature that is inherent in all
processors. So it basically means that after having executed the branch, the
NIP has already progressed to the next instruction it is
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