22 Jun, 2005
40 commits
-
This series of patches reworks the configuration and internal structure
of the SGI IOC4 I/O controller device drivers.These changes are motivated by several factors:
- The IOC4 chip PCI resources are of mixed use between functions (i.e.
multiple functions are handled in the same address range, sometimes
within the same register), muddling resource ownership and initialization
issues. Centralizing this ownership in a core driver is desirable.- The IOC4 chip implements multiple functions (serial, IDE, others not
yet implemented in the mainline kernel) but is not a multifunction
PCI device. In order to properly handle device addition and removal
as well as module insertion and deletion, an intermediary IOC4-specific
driver layer is needed to handle these operations cleanly.- All IOC4 drivers are currently enabled by a single CONFIG value. As
not all systems need all IOC4 functions, it is desireable to enable
these drivers independently.- The current IOC4 core driver will trigger loading of all function-level
drivers, as it makes direct calls to them. This situation should be
reversed (i.e. function-level drivers cause loading of core driver)
in order to maintain a clear and least-surprise driver loading model.- IOC4 hardware design necessitates some driver-level dependency on
the PCI bus clock speed. Current code assumes a 66MHz bus, but the
speed should be autodetected and appropriate compensation taken.This patch series effects the above changes by a newly and better designed
IOC4 core driver with which the function-level drivers can register and
deregister themselves upon module insertion/removal. By tracking these
modules, device addition/removal is also handled properly. PCI resource
management and ownership issues are centralized in this core driver, and
IOC4-wide configuration actions such as bus speed detection are also
handled in this core driver.This patch:
The SGI IOC4 I/O controller chip implements multiple functions, though it is
not a multi-function PCI device. Additionally, various PCI resources of the
IOC4 are shared by multiple hardware functions, and thus resource ownership by
driver is not clearly delineated. Due to the current driver design, all core
and subordinate drivers must be loaded, or none, which is undesirable if not
all IOC4 hardware features are being used.This patch reorganizes the IOC4 drivers so that the core driver provides a
subdriver registration service. Through appropriate callbacks the subdrivers
can now handle device addition and removal, as well as module insertion and
deletion (though the IOC4 IDE driver requires further work before module
deletion will work). The core driver now takes care of allocating PCI
resources and data which must be shared between subdrivers, to clearly
delineate module ownership of these items.Signed-off-by: Brent Casavant
Acked-by: Pat Gefre
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Add vr41xx gpio support.
Signed-off-by: Yoichi Yuasa
Cc: Ralf Baechle
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Allow the SMT bit to be set/reset at boot, like the ALTIVEC bit. This
means we will enable SMT on unknown cpus that support it.Signed-off-by: Anton Blanchard
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
We dont use the hardware referenced and changed bits and setting them early
avoids a store to memory. We already do this for userspace hptes but not
kernel ones. Do it.Signed-off-by: Anton Blanchard
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Currently we dynamically allocate the fake parent device for all devices on
the vio bus. This patch statically allocates it. This also allows us to
reuse it for the iSeries "generic" vio device (that is used for passing to
dma routines when communicating with the hypervisor without a device
involved). Also unexport vio_bus_type as it is never used in modules.Signed-off-by: Stephen Rothwell
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
This patch allows iSeries to build with CONFIG_PCI=n. This is useful for
partitions that have only virtual I/O.Signed-off-by: Stephen Rothwell
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
This patch just removes some dead code, fixes messages that referred to the
file this code used to be in and inserts XmPciLpEvent_init into its caller.Signed-off-by: Stephen Rothwell
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
This patch just merges XmPciLpEvent.c into iSeries_irq.c (the only caller of
its only external function). XmPciLpEvent.c just contained the lowlevel
iSeries irq code.Signed-off-by: Stephen Rothwell
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
This patch is just simple cleanups to the iSeries irq code.
- whitespace and comments
- rearrange some functions to avoid forward declarations
- remove XmPciLpEvent.h as its functions were declared elsewhere
- remove decaration of function that no longer exists
No semantic changes.Signed-off-by: Stephen Rothwell
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
The AgentId, PhbId, FrameId, CardLocation and Location members of
iSeries_Device_Node are stored early in the boot process just so that a
message about the device can be printed later in the boot process. Remove
them and construct the message by doing the VPD parsing at the time the
message is printed.Also remove a few unused defines in iSeries_VpdInfo.c.
Signed-off-by: Stephen Rothwell
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
The IoRetry member of iSeries_Devide_Node is really only used locally, so
remove it and replace it with a local variable.Signed-off-by: Stephen Rothwell
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Remove no longer used things from iSeries_pci.h.
Signed-off-by: Stephen Rothwell
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Clean up iSeries_VpdInfo.c:
- white space and comment fixes
- make a function static
- the functions here are only called from iSeries_pci.c, so
CONFIG_PCI will be set (so remove check)
- only build when CONFIG_PCI is set
- remove unneeded includes and castSigned-off-by: Stephen Rothwell
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
The iommu_table_cb structure is iSeries specific, so move it to the header
file that declares the function we pass it to. vio_tce_table and
iommu_setup_iSeries no longer exist, so remove their declarations.Signed-off-by: Stephen Rothwell
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
The file arch/ppc64/kernel/iSeries_pci_reset contains only one function that
is not use anywhere (any more). Remove it. This function is the only user of
the ReturnCode member of iSeries_Device_Node, so remove that as well.Signed-off-by: Stephen Rothwell
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Last of this round of the iSeries header cleanups
- don't have two defines for the same thing (HvMaxArchitectedLps
and HvMaxArchitectedVirtualLans)
- HvCallSc.h only needs linux/types.h
- remove unused struct definition
- add "extern" to some more function declarationsSigned-off-by: Stephen Rothwell
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
This patch removes some unused bits from HvCall.h and some unneeded #includes
from other files. Also includes ItLpQueue.h in paca.h in preference to a stub
declaration of struct ItLpQueue.Signed-off-by: Stephen Rothwell
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Just white space cleaups and move process_iSeries_events into its only caller.
Signed-off-by: Stephen Rothwell
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Now that the only users of things in HvCallCfg.h are in HvLpConfig.h, merge in
the bit we need and remove HvCallCfg.h.Signed-off-by: Stephen Rothwell
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
This patch removes from the iSeries header files a large number of inline
functions that are not used. It also changes the only caller of a HvCallCfg
function that is outside HvLpConfig.h to its equivalent HvLpConfig function
and no longer includes HvCallCfg.h where it is not needed.Signed-off-by: Stephen Rothwell
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
include/asm-ppc64/iSeries/LparData.h just included a whole lot of other files
to declare variables that would be better declared in those other files. So,
remove it. This will reduce that number of things needed to be included in
most cases to access the relevant variables.Signed-off-by: Stephen Rothwell
Signed-off-by: Linus Torvalds -
This patch does some obvious code cleanups in the iSeries headers files.
- simplifies the bodies of lots of inline functions
- parenthesises a macros result
- removes C++ wrapping
- adds "extern" to some function declarations
There are no semantic changes.Signed-off-by: Stephen Rothwell
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
This patch just contains white space and comment cleanups in the iSeries
headers files. There are no semantic changes.Signed-off-by: Stephen Rothwell
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
This patch just contains white space and comment cleanups in the iSeries
headers files. There are no semantic changes.Signed-off-by: Stephen Rothwell
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
include/asm-ppc64/iSeries/iSeries_proc.h just contains a declaration of a
function that no longer exists. Remove it.Signed-off-by: Stephen Rothwell
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
The following kind of calls currently fails :
make ARCH=ppc64 CC="gcc-3.4"
Since the code for detecting a biarch compiler and adding the needed 64bit
magic argument fails if the AS/LD/CC commands are overriden in the command
line.The attached patch fixes this by using the make override and += directive,
but i am not 100% sure this will work without gmake, as i am no Makefile
expert.Cc: Paul Mackerras
Cc: Anton Blanchard
Cc: Benjamin Herrenschmidt
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Currently ppc64 has two mm_structs for the kernel, init_mm and also
ioremap_mm. The latter really isn't necessary: this patch abolishes it,
instead restricting vmallocs to the lower 1TB of the init_mm's range and
placing io mappings in the upper 1TB. This simplifies the code in a number
of places and eliminates an unecessary set of pagetables. It also tweaks
the unmap/free path a little, allowing us to remove the unmap_im_area() set
of page table walkers, replacing them with unmap_vm_area().Signed-off-by: David Gibson
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
This patch kills the whole embedded System.map mecanism and the
bootloader-passed System.map that was used to provide symbol resolution in
xmon. Instead, xmon now uses kallsyms like ppc64 does.No hurry getting that in Linus tree, let it be tested in -mm for a while
first and make sure it doesn't break various embedded configs.Signed-off-by: Benjamin Herrenschmidt
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
This patch avoids recursive crash (leading to kernel stack overflow) in
die() on CHRP/PReP machines when CONFIG_PMAC_BACKLIGHT=y. set_backlight_*
functions are placed in pmac section, which is discarded when _machine !=
_MACH_Pmac.Signed-off-by: Jakub Bogusz
Acked-by: Benjamin Herrenschmidt
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Fight the Good Fight: Limit prom.h header creep.
Signed-off-by: Jon Loeliger
Signed-off-by: Kumar Gala
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
4xx and Book-E PPC's have several exception levels. The code to handle
each level is fairly regular. Turning the code into macro's will ease the
handling of future exception levels (debug) in forth coming chips.Signed-off-by: Kumar Gala
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Made the number of TLB CAM entries private and converted the board
consumers to use num_tlbcam_entries which is setup at boot time from
configuration registers. This way the only consumers of the #define
NUM_TLBCAMS are the arrays used to manage the TLB.Signed-off-by: Kumar Gala
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
The MPC8548 has 48 internal interrupts and 12 external interrupts. The
previous generation PowerQUICC III devices only had 32 internal and 12
external interrupts on the primary interrupt controller.Expanded the number of internal interrupts to 48 for all PowerQUICC III
processors and moved the interrupt numbers for the external after the 48
internal interrupt lines, rather than putting the 12 new internal
interrupts at the end and ifdef'ng the whole mess. As parted of this
created a macro which represents the internal interrupt senses since they
are the same on all PQ3 processors.Signed-off-by: Kumar Gala
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Removes ppc4xx_kgdb.c which is no longer being used. Pointed out by Andrei
Konovalov.Signed-off-by: Matt Porter
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Added platform device initialization for the two 8250 style UARTs that
exist on the MPC8245. Additionally, updated the Sandpoint code to enable
one of these UARTs if an MPC8245 is connected to it.Signed-off-by: Matt McClintock
Signed-off-by: Kumar Gala
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
This patch is virtually identical to my previous 44x one. It removes
0x8000'0000 TASK_SIZE hardcoded assumption from head_4xx.S.Signed-off-by: Eugene Surovegin
Signed-off-by: Matt Porter
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Adds SCC2 pin routing specific to the GP3 board.
Signed-off-by: Matt Porter
Signed-off-by: Kumar Gala
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Converted the MPC10x bridge support (used by MPC10x and 8240/1/5) to used
the standard platform device model.Signed-off-by: Matt McClintock
Signed-off-by: Kumar Gala
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Previously we needed CONFIG_CPM2 enabled to get the proper IRQ ifdef's for
CPM interrupts. Recent changes have caused that to be no longer necessary.Signed-off-by: Kumar Gala
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Adds support for using the MPC8548 processor on the CDS reference board.
Currently all the major busses (PCI, PCI-X, PCI-Express, sRIO) and eTSEC3
and eTSEC4 are not supported.Signed-off-by: Kumar Gala
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
