kevin/linux
1
Fork 0
Code
4cb3cee03d
linux/arch/powerpc/kernel
History
Benjamin Herrenschmidt 4cb3cee03d [POWERPC] Allow hooking of PCI MMIO & PIO accessors on 64 bits 
This patch reworks the way iSeries hooks on PCI IO operations (both MMIO
and PIO) and provides a generic way for other platforms to do so (we
have need to do that for various other platforms).

While reworking the IO ops, I ended up doing some spring cleaning in
io.h and eeh.h which I might want to split into 2 or 3 patches (among
others, eeh.h had a lot of useless stuff in it).

A side effect is that EEH for PIO should work now (it used to pass IO
ports down to the eeh address check functions which is bogus).

Also, new are MMIO "repeat" ops, which other archs like ARM already had,
and that we have too now: readsb, readsw, readsl, writesb, writesw,
writesl.

In the long run, I might also make EEH use the hooks instead
of wrapping at the toplevel, which would make things even cleaner and
relegate EEH completely in platforms/iseries, but we have to measure the
performance impact there (though it's really only on MMIO reads)

Since I also need to hook on ioremap, I shuffled the functions a bit
there. I introduced ioremap_flags() to use by drivers who want to pass
explicit flags to ioremap (and it can be hooked). The old __ioremap() is
still there as a low level and cannot be hooked, thus drivers who use it
should migrate unless they know they want the low level version.

The patch "arch provides generic iomap missing accessors" (should be
number 4 in this series) is a pre-requisite to provide full iomap
API support with this patch.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-12-04 20:38:52 +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
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 Merge branch 'linux-2.6' into for-linus 2006-12-04 15:59:07 +11:00
crash_dump.c [POWERPC] Make doc comments extractable 2006-08-08 17:07:04 +10:00
crash.c [POWERPC] Lazy interrupt disabling for 64-bit machines 2006-10-16 16:31:36 +10:00
dma_64.c [POWERPC] Refactor 64 bits DMA operations 2006-12-04 20:38:40 +11:00
entry_32.S Remove obsolete #include <linux/config.h> 2006-06-30 19:25:36 +02:00
entry_64.S [PATCH] Remove occurences of PPC_MULTIPLATFORM in head_64.S 2006-11-13 14:44:58 +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 Merge branch 'linux-2.6' into for-linus 2006-12-04 15:59:07 +11:00
head_booke.h
head_fsl_booke.S Remove obsolete #include <linux/config.h> 2006-06-30 19:25:36 +02:00
ibmebus.c [POWERPC] Refactor 64 bits DMA operations 2006-12-04 20:38:40 +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] Allow hooking of PCI MMIO & PIO accessors on 64 bits 2006-12-04 20:38:52 +11:00
iomap.c
iommu.c [POWERPC] Refactor 64 bits DMA operations 2006-12-04 20:38:40 +11:00
irq.c [POWERPC] Make irq_dispose_mapping(NO_IRQ) a nop 2006-10-25 14:20:20 +10:00
kprobes.c [PATCH] kretprobe spinlock deadlock patch 2006-10-02 07:57:16 -07:00
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
machine_kexec_32.c
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] Allow hooking of PCI MMIO & PIO accessors on 64 bits 2006-12-04 20:38:52 +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
of_device.c [POWERPC] Souped-up of_platform_device support 2006-12-04 16:08:52 +11:00
of_platform.c [POWERPC] Generic OF platform driver for PCI host bridges. 2006-12-04 20:38:49 +11:00
paca.c [POWERPC] Implement SLB shadow buffer 2006-08-08 17:08:56 +10:00
pci_32.c [POWERPC] Add "parent" struct device for PCI host bridges 2006-12-04 20:38:47 +11:00
pci_64.c [POWERPC] Allow hooking of PCI MMIO & PIO accessors on 64 bits 2006-12-04 20:38:52 +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
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 Merge branch 'merge' 2006-08-31 15:45:48 +10:00
prom_parse.c [POWERPC] Fix up the OF functions to only do PCI stuff if PCI is actually configured 2006-10-24 15:01:27 +10:00
prom.c Merge branch 'linux-2.6' into for-linus 2006-12-04 15:59:07 +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 [POWERPC] pseries: Force 4k update_flash block and list sizes 2006-11-10 21:35:36 +11:00
rtas_pci.c [POWERPC] Generic OF platform driver for PCI host bridges. 2006-12-04 20:38:49 +11:00
rtas-proc.c [POWERPC] Constify & voidify get_property() 2006-07-31 15:55:04 +10:00
rtas-rtc.c
rtas.c [POWERPC] reboot when panic_timout is set 2006-08-25 13:30:26 +10:00
semaphore.c
setup_32.c Merge branch 'linux-2.6' into for-linus 2006-12-04 15:59:07 +11:00
setup_64.c [POWERPC] Allow hooking of PCI MMIO & PIO accessors on 64 bits 2006-12-04 20:38:52 +11:00
setup-common.c [POWERPC] Fix xmon=off and cleanup xmon initialisation 2006-10-04 14:52:22 +10:00
setup.h
signal_32.c Remove obsolete #include <linux/config.h> 2006-06-30 19:25:36 +02:00
signal_64.c Remove obsolete #include <linux/config.h> 2006-06-30 19:25:36 +02:00
smp-tbsync.c [POWERPC] Fix irq enable/disable in smp_generic_take_timebase 2006-08-30 16:10:47 +10:00
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 [PATCH] VFS: Make filldir_t and struct kstat deal in 64-bit inode numbers 2006-10-03 08:03:40 -07:00
syscalls.c [PATCH] namespaces: utsname: switch to using uts namespaces 2006-10-02 07:57:21 -07:00
sysfs.c [POWERPC] sysfs: add support for adding/removing spu sysfs attributes 2006-10-25 14:20:22 +10:00
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] Revert "[POWERPC] Add powerpc get/set_rtc_time interface to new generic rtc class" 2006-11-22 12:13:36 +11:00
traps.c [POWERPC] Make alignment exception always check exception table 2006-11-01 15:16:04 +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 [POWERPC] Support feature fixups in vdso's 2006-10-25 11:54:07 +10:00
vecemu.c
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] vmlinux.lds: consolidate initcall sections 2006-10-27 15:34:51 -07:00