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396a1a5832
linux/arch/powerpc/kernel
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Benjamin Herrenschmidt 396a1a5832 [POWERPC] Fix mmap of PCI resource with hack for X 
The powerpc version of pci_resource_to_user() and associated hooks
used by /proc/bus/pci and /sys/bus/pci mmap have been broken for some
time on machines that don't have a 1:1 mapping of devices (basically
on non-PowerMacs) and have PCI devices above 32 bits.

This attempts to fix it as well as possible.

The rule is supposed to be that pci_resource_to_user() always converts
the resources back into a BAR values since that's what the /proc
interface was supposed to deal with. However, for X to work on
platforms where PCI MMIO is not mapped 1:1, it became a habit of
platforms like powerpc to pass "fixed up" values there since X expects
to be able to use values from /proc/bus/pci/devices as offsets to mmap
of /dev/mem...

So we keep that contraption here, causing also /sys/*/resource to
expose fully absolute MMIO addresses instead of BAR values, which is
ugly, but should still work as long as those are only used to calculate
alignment within a page.

X is still broken when built 32 bits on machines where PCI MMIO can be
above 32-bit space unfortunately.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-12-08 17:21:06 +11:00
..
vdso32 [POWERPC] Support feature fixups in vdso's 2006-10-25 11:54:07 +10:00
vdso64 [POWERPC] Cell timebase bug workaround 2006-10-25 11:54:18 +10:00
align.c [PATCH] powerpc: Implement support for setting little-endian mode via prctl 2006-06-09 21:24:15 +10:00
asm-offsets.c [POWERPC] Lazy interrupt disabling for 64-bit machines 2006-10-16 16:31:36 +10:00
audit.c [PATCH] audit: AUDIT_PERM support 2006-09-11 13:32:30 -04:00
binfmt_elf32.c Remove obsolete #include <linux/config.h> 2006-06-30 19:25:36 +02:00
btext.c [POWERPC] Fix various offb issues 2006-11-01 14:52:48 +11:00
compat_audit.c [PATCH] audit: AUDIT_PERM support 2006-09-11 13:32:30 -04:00
cpu_setup_6xx.S Remove obsolete #include <linux/config.h> 2006-06-30 19:25:36 +02:00
cpu_setup_ppc970.S [POWERPC] powerpc: Enable DEEPNAP power savings mode on 970MP 2006-10-16 16:32:25 +10:00
cputable.c [POWERPC] Add the e300c3 core to the CPU table. 2006-12-04 20:42:06 +11:00
crash_dump.c [POWERPC] Make doc comments extractable 2006-08-08 17:07:04 +10:00
crash.c [PATCH] Kexec / Kdump: Unify elf note code 2006-12-07 08:39:46 -08:00
dma_64.c [POWERPC] Make direct DMA use node local allocations 2006-12-04 20:38:59 +11:00
entry_32.S Remove obsolete #include <linux/config.h> 2006-06-30 19:25:36 +02:00
entry_64.S [POWERPC] iSeries: Eliminate "exceeds stub group size" warnings 2006-12-04 20:41:31 +11:00
firmware.c Remove obsolete #include <linux/config.h> 2006-06-30 19:25:36 +02:00
fpu.S [POWERPC] Restore copyright notice in arch/powerpc/kernel/fpu.S 2006-08-30 14:45:35 +10:00
head_4xx.S Remove obsolete #include <linux/config.h> 2006-06-30 19:25:36 +02:00
head_8xx.S Remove obsolete #include <linux/config.h> 2006-06-30 19:25:36 +02:00
head_32.S Remove obsolete #include <linux/config.h> 2006-06-30 19:25:36 +02:00
head_44x.S Remove obsolete #include <linux/config.h> 2006-06-30 19:25:36 +02:00
head_64.S [POWERPC] iSeries: Eliminate "exceeds stub group size" warnings 2006-12-04 20:41:31 +11:00
head_booke.h [PATCH] powerpc: Fix Kernel FP unavail exception for BookE 2006-02-10 16:51:50 +11:00
head_fsl_booke.S Remove obsolete #include <linux/config.h> 2006-06-30 19:25:36 +02:00
ibmebus.c [POWERPC] Replace kmalloc+memset with kzalloc 2006-12-04 20:42:09 +11:00
idle_6xx.S Remove obsolete #include <linux/config.h> 2006-06-30 19:25:36 +02:00
idle_power4.S [POWERPC] Lazy interrupt disabling for 64-bit machines 2006-10-16 16:31:36 +10:00
idle.c [POWERPC] cell: use ppc_md->power_save instead of cbe_idle_loop 2006-10-25 14:20:22 +10:00
init_task.c [PATCH] nsproxy: move init_nsproxy into kernel/nsproxy.c 2006-10-02 07:57:20 -07:00
io.c [POWERPC] Merge 32 and 64 bits asm-powerpc/io.h 2006-12-04 20:39:05 +11:00
iomap.c [POWERPC] Merge 32 and 64 bits asm-powerpc/io.h 2006-12-04 20:39:05 +11:00
iommu.c [POWERPC] Refactor 64 bits DMA operations 2006-12-04 20:38:40 +11:00
irq.c [POWERPC] Make soft_enabled irqs preempt safe 2006-12-04 20:39:20 +11:00
kprobes.c [PATCH] kprobes: enable booster on the preemptible kernel 2006-12-07 08:39:38 -08:00
l2cr_6xx.S Remove obsolete #include <linux/config.h> 2006-06-30 19:25:36 +02:00
legacy_serial.c Merge branch 'merge' 2006-08-25 14:56:07 +10:00
lparcfg.c [POWERPC] clean up pseries hcall interfaces 2006-08-01 16:19:15 +10:00
lparmap.c [PATCH] powerpc: Fix iSeries bug in VMALLOCBASE/VMALLOC_START consolidation 2006-01-09 15:06:06 +11:00
machine_kexec_32.c Storage class should be first 2006-06-26 18:57:34 +02:00
machine_kexec_64.c Merge branch 'merge' 2006-08-25 14:56:07 +10:00
machine_kexec.c [POWERPC] Move some kexec logic into machine_kexec.c 2006-08-17 16:41:10 +10:00
Makefile [POWERPC] iSeries: head_64.o needs to depend on lparmap.s 2006-12-08 17:21:06 +11:00
misc_32.S [POWERPC] Consolidate feature fixup code 2006-10-25 11:42:10 +10:00
misc_64.S [POWERPC] Consolidate feature fixup code 2006-10-25 11:42:10 +10:00
misc.S [POWERPC] convert string i/o operations to C 2006-09-20 14:06:18 +10:00
module_32.c [POWERPC] Support feature fixups in modules 2006-10-25 11:54:13 +10:00
module_64.c [POWERPC] Support feature fixups in modules 2006-10-25 11:54:13 +10:00
nvram_64.c [PATCH] nvram_print_partitions cosmetic fixup 2006-04-29 18:08:05 +10:00
of_device.c [POWERPC] Add missing EXPORTS for mpc52xx support 2006-12-05 11:34:37 +11:00
of_platform.c [POWERPC] of_platform_make_bus_id(): make `magic' int 2006-12-08 17:10:22 +11:00
paca.c [POWERPC] Implement SLB shadow buffer 2006-08-08 17:08:56 +10:00
pci_32.c [POWERPC] Fix mmap of PCI resource with hack for X 2006-12-08 17:21:06 +11:00
pci_64.c [POWERPC] Fix mmap of PCI resource with hack for X 2006-12-08 17:21:06 +11:00
pci_dn.c [POWERPC] Constify & voidify get_property() 2006-07-31 15:55:04 +10:00
pmc.c [POWERPC] Fix oprofile support for e500 in arch/powerpc 2006-11-01 14:52:48 +11:00
ppc32.h powerpc: move include/asm-ppc64/ppc32.h to arch/powerpc/kernel 2005-11-03 16:03:28 +11:00
ppc_ksyms.c [POWERPC] Lazy interrupt disabling for 64-bit machines 2006-10-16 16:31:36 +10:00
proc_ppc64.c Remove obsolete #include <linux/config.h> 2006-06-30 19:25:36 +02:00
process.c [POWERPC] Better check in show_instructions 2006-10-16 15:53:30 +10:00
prom_init.c [POWERPC] Tell firmware we can handle POWER6 compatible mode 2006-12-04 20:41:53 +11:00
prom_parse.c [POWERPC] Fix OF pci flags parsing 2006-12-04 20:41:49 +11:00
prom.c [POWERPC] Distinguish POWER6 partition modes and tell userspace 2006-12-04 20:40:16 +11:00
ptrace32.c Remove obsolete #include <linux/config.h> 2006-06-30 19:25:36 +02:00
ptrace-common.h Remove obsolete #include <linux/config.h> 2006-06-30 19:25:36 +02:00
ptrace.c [POWERPC] Fix PPC32 SECCOMP, unexport do_syscall_trace_{enter,leave} 2006-09-26 15:24:34 +10:00
rtas_flash.c [PATCH] slab: remove kmem_cache_t 2006-12-07 08:39:25 -08:00
rtas_pci.c [POWERPC] Merge 32 and 64 bits asm-powerpc/io.h 2006-12-04 20:39:05 +11:00
rtas-proc.c [POWERPC] Constify & voidify get_property() 2006-07-31 15:55:04 +10:00
rtas-rtc.c [PATCH] powerpc: reorg RTAS delay code 2006-06-09 21:21:06 +10:00
rtas.c [POWERPC] Add rtas_service_present() helper 2006-12-08 17:10:22 +11:00
semaphore.c powerpc: Merge enough to start building in arch/powerpc. 2005-09-26 16:04:21 +10:00
setup_32.c [POWERPC] Distinguish POWER6 partition modes and tell userspace 2006-12-04 20:40:16 +11:00
setup_64.c [POWERPC] Distinguish POWER6 partition modes and tell userspace 2006-12-04 20:40:16 +11:00
setup-common.c [POWERPC] Fix xmon=off and cleanup xmon initialisation 2006-10-04 14:52:22 +10:00
setup.h [PATCH] powerpc: Make early xmon logic immune to location of early parsing 2006-05-19 15:02:12 +10:00
signal_32.c [PATCH] Add include/linux/freezer.h and move definitions from sched.h 2006-12-07 08:39:27 -08:00
signal_64.c Remove obsolete #include <linux/config.h> 2006-06-30 19:25:36 +02:00
smp-tbsync.c [POWERPC] Replace kmalloc+memset with kzalloc 2006-12-04 20:42:09 +11:00
smp.c [POWERPC] cell: add cpufreq driver for Cell BE processor 2006-10-25 14:20:22 +10:00
swsusp_32.S [PATCH] Change the name of pagedir_nosave 2006-09-26 08:49:01 -07:00
sys_ppc32.c [POWERPC] fix missing #include in sys_ppc32.c 2006-12-04 20:41:19 +11:00
syscalls.c [PATCH] namespaces: utsname: switch to using uts namespaces 2006-10-02 07:57:21 -07:00
sysfs.c [PATCH] i386: change the 'no_control' field to 'hotpluggable' in the struct cpu 2006-12-07 02:14:10 +01:00
systbl.S Remove obsolete #include <linux/config.h> 2006-06-30 19:25:36 +02:00
tau_6xx.c Remove obsolete #include <linux/config.h> 2006-06-30 19:25:36 +02:00
time.c [POWERPC] iSeries: fix time.c for combined build 2006-12-04 20:39:15 +11:00
traps.c [POWERPC] Merge 32 and 64 bits asm-powerpc/io.h 2006-12-04 20:39:05 +11:00
udbg_16550.c [POWERPC] Fix default clock for udbg_16550 2006-07-26 01:27:13 +10:00
udbg.c Remove obsolete #include <linux/config.h> 2006-06-30 19:25:36 +02:00
vdso.c [PATCH] slab: remove SLAB_KERNEL 2006-12-07 08:39:24 -08:00
vecemu.c [PATCH] powerpc: Move arch/ppc*/kernel/vecemu.c to arch/powerpc 2005-09-21 19:21:07 +10:00
vector.S Remove obsolete #include <linux/config.h> 2006-06-30 19:25:36 +02:00
vio.c [POWERPC] Refactor 64 bits DMA operations 2006-12-04 20:38:40 +11:00
vmlinux.lds.S [PATCH] relocatable kernel: Kallsyms generate relocatable symbols 2006-12-07 02:14:04 +01:00