Using LOAD_REG_IMMEDIATE to get the address of kernel symbols
generates 5 instructions where LOAD_REG_ADDR can do it in one,
and will generate R_PPC64_ADDR16_* relocations in the output when
we get to making the kernel as a position-independent executable,
which we'd rather not have to handle. Thi
This changes the way that the exception prologs transfer control to
the handlers in 64-bit kernels with the aim of making it possible to
have the prologs separate from the main body of the kernel. Now,
instead of computing the address of the handler by taking the top
32 bits of the paca address (t
This implements CONFIG_RELOCATABLE for 64-bit by making the kernel as
a position-independent executable (PIE) when it is set. This involves
processing the dynamic relocations in the image in the early stages of
booting, even if the kernel is being run at the address it is linked at,
since the link
This rearranges head_64.S so that we have all the first-level exception
prologs together starting at 0x100, followed by all the second-level
handlers that are invoked from the first-level prologs, followed by
other code. This doesn't make any functional change but will make
following changes for r
This demonstrates that the relocatable kernel doesn't have to run at
real address 0. It only copies the interrupt vectors down and leaves
the rest of the kernel where it was loaded, and runs it there.
Signed-off-by: Paul Mackerras <[EMAIL PROTECTED]>
---
diff --git a/arch/powerpc/kernel/head_64.S
Commit bc033b63bbfeb6c4b4eb0a1d083c650e4a0d2af8 ("powerpc/mm: Fix
attribute confusion with htab_bolt_mapping()") moved the check for
whether we should make pages of the linear mapping executable from
htab_bolt_mapping into its callers, including htab_initialize.
A side-effect of this is that the de
On Fri, 29 Aug 2008, Vitaly Bordug wrote:
> But even assuming PM set, common use-case of
> embedded systems to have stuff on USB bus that is never plugged off;
> and in case of compiled-in ehci and ohci there is just
>
> Initializing USB Mass Storage driver...
> usb 1-1: new high speed USB devic
On Fri, 29 Aug 2008, Arnd Bergmann wrote:
> On Friday 29 August 2008, Alan Stern wrote:
> > I thought you _were_ arguing against that. Unless I misunderstood,
> > your original complaint was that since each peripheral controller
> > driver defines usb_gadget_{un}register_driver, there can be only
On Fri, 2008-08-29 at 13:48 +0200, David Jander wrote:
> On Wednesday 27 August 2008 23:04:39 Steven Munroe wrote:
> > On Tue, 2008-08-26 at 08:28 +1000, Benjamin Herrenschmidt wrote:
> > > On Mon, 2008-08-25 at 15:06 +0200, David Jander wrote:
> > > > Hi Matt,
> > > >
> > > > On Monday 25 August 2
В Fri, 29 Aug 2008 11:26:07 -0400 (EDT)
Alan Stern <[EMAIL PROTECTED]> пишет:
> On Fri, 29 Aug 2008, Benjamin Herrenschmidt wrote:
>
> > I suppose some embedded platforms don't use CONFIG_PM, is this
> > still a requirement for autosuspend ? Or do that happen always on
> > an empty port nowadays
Hi,
please see my comment below. It might be helpful for some of you.
On Thursday 28 August 2008 23:11:51 Steven A. Falco wrote:
> Alan Stern wrote:
> > Your original post mentioned that the 440EPx has only one USB 2.0 host
> > port. Then how can you use a keyboard and memory stick at the same
>
On Friday 29 August 2008, Alan Stern wrote:
> I thought you _were_ arguing against that. Unless I misunderstood,
> your original complaint was that since each peripheral controller
> driver defines usb_gadget_{un}register_driver, there can be only one
> controller driver loaded at a time.
That's
This rearranges a bit of code, and adds support for
36-bit physical addressing for configs that use a
hashed page table. The 36b physical support is not
enabled by default on any config - it must be
explicitly enabled via the config system.
This patch *only* expands the page table code to accomod
This rearranges a bit of code, and adds support for
36-bit physical addressing for configs that use a
hashed page table. The 36b physical support is not
enabled by default on any config - it must be
explicitly enabled via the config system.
This patch *only* expands the page table code to accomod
On Fri, 29 Aug 2008, Arnd Bergmann wrote:
> On Friday 29 August 2008, Alan Stern wrote:
> > > The standard requires that there can only be one protocol handler
> > > per physical interface, which is a reasonable limitation.
> >
> > No, you've got it exactly backward. There can be multiple protoc
On Friday 29 August 2008, Alan Stern wrote:
> > The standard requires that there can only be one protocol handler
> > per physical interface, which is a reasonable limitation.
>
> No, you've got it exactly backward. There can be multiple protocol
> handlers per physical interface, but there must
On Aug 29, 2008, at 8:56 AM, Kumar Gala wrote:
Introduced a new set of low level tlb invalidate functions that do not
broadcast invalidates on the bus:
_tlbil_all - invalidate all
_tlbil_pid - invalidate based on process id (or mm context)
_tlbil_va - invalidate based on virtual address (ea +
On Fri, 29 Aug 2008, Arnd Bergmann wrote:
> > > Does building a kernel image that can run on different hardware without
> > > rebuilding also violate the "relevant standards"?
> >
> > No. That isn't what Arnd was concerned about. He noted that even if
> > you did build multiple modules, only
On Aug 29, 2008, at 8:56 AM, Kumar Gala wrote:
There are some minor issues with support 64-bit PTEs on a 32-bit
processor
when dealing with SMP.
* We need to order the stores in set_pte_at to make sure the flag word
is set second.
* Change pte_clear to use pte_update so only the flag word i
On Fri, 29 Aug 2008, Benjamin Herrenschmidt wrote:
> I suppose some embedded platforms don't use CONFIG_PM, is this still a
> requirement for autosuspend ? Or do that happen always on an empty port
> nowadays ?
ohci-hcd doesn't automatically suspend the root hub if CONFIG_PM isn't
set. However i
On Aug 29, 2008, at 8:51 AM, Jon Loeliger wrote:
Kumar Gala wrote:
arch/powerpc/boot/dts/mgcoge.dts | 174 +++
arch/powerpc/configs/mgcoge_defconfig | 900 ++
+++
arch/powerpc/platforms/82xx/Kconfig |8 +
arch/powerpc/platforms/82xx/Makefile |1
kdump kernel needs to use only those memory regions that it is allowed to use
(crashkernel, rtas, tce ..etc ). Each of these regions have their own sizes
and are currently added under 'linux,usable-memory' property under each
memory@ node of the device tree. ibm,dynamic-memory property of
ibm
Hello,
I am using Linux 2.6.26. When I boot my board, I don't see the message :
RAMDISK driver initialized:...
Is it right ?
___
Linuxppc-dev mailing list
Linuxppc-dev@ozlabs.org
https://ozlabs.org/mailman/listinfo/linuxppc-dev
Implement _PAGE_SPECIAL and pte_special() for 32-bit powerpc. This bit will
be used by the fast get_user_pages() to differenciate PTEs that correspond
to a valid struct page from special mappings that don't such as IO mappings
obtained via io_remap_pfn_ranges().
We currently only implement this on
We need to create a false data dependency to ensure the loads of
the pte are done in the right order.
Signed-off-by: Kumar Gala <[EMAIL PROTECTED]>
---
arch/powerpc/kernel/head_fsl_booke.S | 24
1 files changed, 20 insertions(+), 4 deletions(-)
diff --git a/arch/powerp
There are some minor issues with support 64-bit PTEs on a 32-bit processor
when dealing with SMP.
* We need to order the stores in set_pte_at to make sure the flag word
is set second.
* Change pte_clear to use pte_update so only the flag word is cleared
Signed-off-by: Kumar Gala <[EMAIL PROTECT
Introduced a new set of low level tlb invalidate functions that do not
broadcast invalidates on the bus:
_tlbil_all - invalidate all
_tlbil_pid - invalidate based on process id (or mm context)
_tlbil_va - invalidate based on virtual address (ea + pid)
On non-SMP configs _tlbil_all should be func
Kumar Gala wrote:
arch/powerpc/boot/dts/mgcoge.dts | 174 +++
arch/powerpc/configs/mgcoge_defconfig | 900
+
arch/powerpc/platforms/82xx/Kconfig |8 +
arch/powerpc/platforms/82xx/Makefile |1 +
arch/powerpc/platforms/82xx/mgcoge.c | 129 +
Alan Stern wrote:
> On Thu, 28 Aug 2008, Steven A. Falco wrote:
>
>> Alan Stern wrote:
>>> Your original post mentioned that the 440EPx has only one USB 2.0 host
>>> port. Then how can you use a keyboard and memory stick at the same
>>> time? You'd have to plug them into a hub -- in which case o
On Fri, 2008-08-29 at 13:48 +0200, David Jander wrote:
> On Wednesday 27 August 2008 23:04:39 Steven Munroe wrote:
> > On Tue, 2008-08-26 at 08:28 +1000, Benjamin Herrenschmidt wrote:
> > > On Mon, 2008-08-25 at 15:06 +0200, David Jander wrote:
> > > > Hi Matt,
[SNIP]
> I am not complaining. I wa
Commit bc033b63bbfeb6c4b4eb0a1d083c650e4a0d2af8 ("powerpc/mm: Fix
attribute confusion with htab_bolt_mapping()") moved the check for
whether we should make pages of the linear mapping executable from
htab_bolt_mapping into its callers, including htab_initialize.
A side-effect of this is that the de
On Aug 27, 2008, at 5:32 AM, Jochen Friedrich wrote:
The CPM1 GPIO library code uses the non thread-safe clrbits32/
setbits32
macros. This patch protects them with a spinlock.
Based on the CPM2 patch from Laurent Pinchart <[EMAIL PROTECTED]
>,
commit 639d64456e20cbfc866b18dc03cf9f9babc9c7cd
On Aug 25, 2008, at 11:39 PM, Benjamin Herrenschmidt wrote:
On Mon, 2008-08-25 at 21:08 -0500, Kumar Gala wrote:
The calculation to get TI_CPU based off of SPRG3 was just plain
wrong.
Just offset off the stack pointer (to get to thread_info) like all
the
other references to TI_CPU do.
Thi
On Jun 14, 2008, at 2:02 PM, Heiko Schocher wrote:
here the updated patch for the mgsuvd board.
[powerpc] add support for the MPC852 based mgsuvd board from
keymile to arch/powerpc. Supported SMC1 (serial console),
SCC3 Ethernet (10Mbps hdx).
Signed-off-by: Heiko Schocher
On Jun 18, 2008, at 3:38 AM, Heiko Schocher wrote:
Hello,
changes since the last patch:
update the Portpin initialization.
[powerpc] Added support for the MPC8247 based board MGCOGE
from Keymile.
Signed-off-by: Heiko Schocher <[EMAIL PROTECTED]>
---
arch/powerpc/boot/dts/mgcoge.d
On Aug 26, 2008, at 8:13 AM, Martyn Welch wrote:
+
+ PowerPC,[EMAIL PROTECTED] {
+ device_type = "cpu";
+ reg = <0x>;
+ d-cache-line-size = <32>; // 32 bytes
+ i-cache-line-size = <32>;
On Wednesday 27 August 2008 23:04:39 Steven Munroe wrote:
> On Tue, 2008-08-26 at 08:28 +1000, Benjamin Herrenschmidt wrote:
> > On Mon, 2008-08-25 at 15:06 +0200, David Jander wrote:
> > > Hi Matt,
> > >
> > > On Monday 25 August 2008 13:00:10 Matt Sealey wrote:
> > > > The focus has definitely be
On Aug 29, 2008, at 4:40 AM, Sébastien Chrétien wrote:
Hello,
I am trying to port linux for my ppc board. There is no keybord and
no scree. There is only UART.
I would like to have a console/terminal using UART.
What is the best way ? to write a serial driver using "struct
uart_driver" o
Hello,
I am trying to port linux for my ppc board. There is no keybord and no
scree. There is only UART.
I would like to have a console/terminal using UART.
What is the best way ? to write a serial driver using "struct uart_driver"
or using "tty_driver" or to write a driver from scratch.
Maybe th
On Thu, 2008-08-28 at 11:39 -0500, Scott Wood wrote:
> On Thu, Aug 28, 2008 at 05:43:33PM +0800, Li Yang wrote:
> > +config USB_GADGET_FSL_QE
> > + boolean "Freescale QE/CPM USB Device Controller"
> > + depends on FSL_SOC && (QUICC_ENGINE || CPM)
> > + help
> > + Some of Freescale PowerP
On Friday 29 August 2008, Li Yang wrote:
>
> > Not a problem, but an observation: Most new code uses work queues instead
> > of tasklets these days, which gives you more predictable real time
> > latencies.
> > If you don't have a specific reason to prefer a tasklet, just use
> > a workqueue here.
Hi Scott,
On Thursday 28 August 2008, Scott Wood wrote:
> Laurent Pinchart wrote:
> > On Thursday 28 August 2008, Scott Wood wrote:
> >> On Thu, Aug 28, 2008 at 05:57:13PM +0200, Laurent Pinchart wrote:
> >>> I'm facing a situation where I need to call cpm2_clk_setup and
> >>> cpm2_set_pin from a
On Thu, 2008-08-28 at 17:04 +0200, Arnd Bergmann wrote:
> On Thursday 28 August 2008, Li Yang wrote:
> > Some of Freescale SoC chips have a QE or CPM co-processor which
> > supports full speed USB. The driver adds device mode support
> > of both QE and CPM USB controller to Linux USB gadget. The
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