kernel-fxtec-pro1x/arch/sparc64/kernel
David S. Miller a83f982313 [SPARC]: Fix OF register translations under sub-PCI busses.
There is an implicit assumption in the code that ranges will translate
to something that can fit in 2 32-bit cells, or a 64-bit value.  For
certain kinds of things below PCI this isn't necessarily true.

Here is what the relevant OF device hierarchy looks like for one of
the serial controllers on an Ultra5:

    Node 0xf005f1e0
        ranges:      00000000.00000000.00000000.000001fe.01000000.00000000.01000000
                     01000000.00000000.00000000.000001fe.02000000.00000000.01000000
                     02000000.00000000.00000000.000001ff.00000000.00000001.00000000
                     03000000.00000000.00000000.000001ff.00000000.00000001.00000000
        device_type:  'pci'
        model:  'SUNW,sabre'

        Node 0xf005f9d4
            device_type:  'pci'
            model:  'SUNW,simba'

           Node 0xf0060d24
                ranges:  00000010.00000000 82010810.00000000.f0000000 01000000
			 00000014.00000000 82010814.00000000.f1000000 00800000
                name:  'ebus'

                Node 0xf0062dac
                    reg:  00000014.003083f8.00000008 --> 0x1ff.f13083f8
                    device_type:  'serial'
                    name:  'su'

So the correct translation here is:

1) Match "su" register to second ranges entry of 'ebus', which translates
   into a PCI triplet "82010814.00000000.f1000000" of size 00800000, which
   gives us "82010814.00000000.f13083f8".

2) Pass-through "SUNW,simba" since it lacks ranges property

3) Match "82010814.00000000.f13083f8" to third ranges property of PCI
   controller node 'SUNW,sabre', and we arrive at the final physical
   MMIO address of "0x1fff13083f8".

Due to the 2-cell assumption, we couldn't translate to a PCI 3-cell
value, and we couldn't perform a pass-thru on it either.

It was easiest to just stop splitting the ranges application operation
between two methods, ->map and ->translate, and just let ->map do all
the work.  That way it would work purely on 32-bit cell arrays instead
of having to "return" some value like a u64.

It's still not %100 correct because the out-of-range check is still
done using the 64 least significant bits of the range and address.
But it does work for all the cases I've thrown at it so far.

Signed-off-by: David S. Miller <davem@davemloft.net>
2006-07-13 01:50:15 -07:00
..
asm-offsets.c
auxio.c [SPARC64] auxio: Remove asm/{sbus,ebus}.h includes. 2006-06-29 16:37:55 -07:00
binfmt_aout32.c [SPARC64]: Top-down address space allocation for 32-bit tasks. 2006-03-20 01:16:35 -08:00
binfmt_elf32.c Remove obsolete #include <linux/config.h> 2006-06-30 19:25:36 +02:00
central.c [SPARC64]: Convert central bus layer to in-kernel PROM device tree. 2006-06-23 23:15:32 -07:00
chmc.c [SPARC64]: Convert Cheetah memory controller driver to in-kernel PROM tree. 2006-06-23 23:15:34 -07:00
cpu.c Remove obsolete #include <linux/config.h> 2006-06-30 19:25:36 +02:00
devices.c Merge master.kernel.org:/pub/scm/linux/kernel/git/davem/sparc-2.6 2006-06-30 15:40:35 -07:00
dtlb_miss.S [SPARC64]: More TLB/TSB handling fixes. 2006-03-20 01:13:34 -08:00
dtlb_prot.S
ebus.c [PATCH] irq-flags: SPARC64: Use the new IRQF_ constants 2006-07-02 13:58:48 -07:00
entry.S Remove obsolete #include <linux/config.h> 2006-06-30 19:25:36 +02:00
etrap.S Remove obsolete #include <linux/config.h> 2006-06-30 19:25:36 +02:00
head.S Remove obsolete #include <linux/config.h> 2006-06-30 19:25:36 +02:00
idprom.c
init_task.c
iommu_common.c
iommu_common.h
irq.c Remove obsolete #include <linux/config.h> 2006-06-30 19:25:36 +02:00
isa.c [SPARC64]: of_device layer IRQ resolution 2006-06-29 16:37:38 -07:00
itlb_miss.S [SPARC64]: Fix _PAGE_EXEC handling. 2006-03-20 01:14:13 -08:00
kprobes.c Remove obsolete #include <linux/config.h> 2006-06-30 19:25:36 +02:00
ktlb.S Remove obsolete #include <linux/config.h> 2006-06-30 19:25:36 +02:00
Makefile [SPARC64]: Add of_device layer and make ebus/isa use it. 2006-06-23 23:15:43 -07:00
module.c [SPARC]: Handle UNWIND_INFO properly. 2006-05-12 12:45:50 -07:00
of_device.c [SPARC]: Fix OF register translations under sub-PCI busses. 2006-07-13 01:50:15 -07:00
pci.c Remove obsolete #include <linux/config.h> 2006-06-30 19:25:36 +02:00
pci_common.c [SPARC64]: of_device layer IRQ resolution 2006-06-29 16:37:38 -07:00
pci_impl.h [SPARC64]: Convert sparc64 PCI layer to in-kernel device tree. 2006-06-23 23:15:26 -07:00
pci_iommu.c [SPARC64]: Respect gfp_t argument to dma_alloc_coherent(). 2006-05-23 02:07:22 -07:00
pci_psycho.c [PATCH] irq-flags: SPARC64: Use the new IRQF_ constants 2006-07-02 13:58:48 -07:00
pci_sabre.c [PATCH] irq-flags: SPARC64: Use the new IRQF_ constants 2006-07-02 13:58:48 -07:00
pci_schizo.c [PATCH] irq-flags: SPARC64: Use the new IRQF_ constants 2006-07-02 13:58:48 -07:00
pci_sun4v.c [SPARC64]: of_device layer IRQ resolution 2006-06-29 16:37:38 -07:00
pci_sun4v.h [SPARC64]: Remove PGLIST_NENTS PCI IOMMU mapping limitation on SUN4V. 2006-03-20 01:13:41 -08:00
pci_sun4v_asm.S [SPARC64]: Remove PGLIST_NENTS PCI IOMMU mapping limitation on SUN4V. 2006-03-20 01:13:41 -08:00
power.c Remove obsolete #include <linux/config.h> 2006-06-30 19:25:36 +02:00
process.c Remove obsolete #include <linux/config.h> 2006-06-30 19:25:36 +02:00
prom.c [SPARC64]: Refine Sabre wsync logic. 2006-07-13 01:50:13 -07:00
ptrace.c [PATCH] drop task argument of audit_syscall_{entry,exit} 2006-05-01 06:06:18 -04:00
rtrap.S Remove obsolete #include <linux/config.h> 2006-06-30 19:25:36 +02:00
sbus.c [PATCH] irq-flags: SPARC64: Use the new IRQF_ constants 2006-07-02 13:58:48 -07:00
semaphore.c
setup.c [PATCH] tty: Remove include of screen_info.h from tty.h 2006-07-10 13:24:16 -07:00
signal.c Remove obsolete #include <linux/config.h> 2006-06-30 19:25:36 +02:00
signal32.c [SPARC]: Add support for *at(), ppoll, and pselect syscalls. 2006-01-19 02:42:49 -08:00
smp.c [SPARC64]: Convert cpu_find_by_*() interface to in-kernel PROM device tree. 2006-06-23 23:15:17 -07:00
sparc64_ksyms.c [SPARC64]: Fix stack overflow checking in modular non-SMP kernels. 2006-07-05 20:42:58 -07:00
starfire.c [SPARC64]: Kill starfire_cookie from SBUS/PCI. 2006-06-29 16:37:08 -07:00
sun4v_ivec.S [SPARC64]: Move over to GENERIC_HARDIRQS. 2006-06-20 01:23:32 -07:00
sun4v_tlb_miss.S [SPARC64]: Add a secondary TSB for hugepage mappings. 2006-03-22 01:15:14 -08:00
sunos_ioctl32.c [SPARC]: Kill remaining kbio.h references. 2005-11-07 14:12:21 -08:00
sys32.S Remove obsolete #include <linux/config.h> 2006-06-30 19:25:36 +02:00
sys_sparc.c Remove obsolete #include <linux/config.h> 2006-06-30 19:25:36 +02:00
sys_sparc32.c Remove obsolete #include <linux/config.h> 2006-06-30 19:25:36 +02:00
sys_sunos32.c [PATCH] zoned vm counters: conversion of nr_pagecache to per zone counter 2006-06-30 11:25:34 -07:00
systbls.S Remove obsolete #include <linux/config.h> 2006-06-30 19:25:36 +02:00
time.c [SPARC64]: Fix sparc64 build errors when CONFIG_PCI=n. 2006-07-05 20:18:39 -07:00
trampoline.S [SPARC64]: Get SUN4V SMP working. 2006-03-20 01:13:22 -08:00
traps.c Remove obsolete #include <linux/config.h> 2006-06-30 19:25:36 +02:00
tsb.S Remove obsolete #include <linux/config.h> 2006-06-30 19:25:36 +02:00
ttable.S Remove obsolete #include <linux/config.h> 2006-06-30 19:25:36 +02:00
una_asm.S [SPARC64]: Mark __ex_table section correctly. 2006-03-04 23:23:56 -08:00
unaligned.c [SPARC64]: Print symbol name of regs->tpc on kernel unaligned accesses. 2006-06-29 16:38:03 -07:00
us2e_cpufreq.c [SPARC64]: kzalloc() conversion 2006-03-20 01:14:19 -08:00
us3_cpufreq.c [SPARC64]: kzalloc() conversion 2006-03-20 01:14:19 -08:00
visemul.c [SPARC64]: First cut at VIS simulator for Niagara. 2006-03-20 01:14:26 -08:00
vmlinux.lds.S [SPARC64]: Rename gl_{1,2}insn_patch --> sun4v_{1,2}insn_patch 2006-03-20 01:11:53 -08:00
winfixup.S [SPARC64]: Fix unaligned access winfxup handling on SUN4V. 2006-03-20 01:13:39 -08:00