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kernel-fxtec-pro1x/arch/powerpc/kernel
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Benjamin Herrenschmidt b98ac05d5e [POWERPC] 4xx: Deal with 44x virtually tagged icache 
The 44x family has an interesting "feature" which is a virtually
tagged instruction cache (yuck !). So far, we haven't dealt with
it properly, which means we've been mostly lucky or people didn't
report the problems, unless people have been running custom patches
in their distro...

This is an attempt at fixing it properly. I chose to do it by
setting a global flag whenever we change a PTE that was previously
marked executable, and flush the entire instruction cache upon
return to user space when that happens.

This is a bit heavy handed, but it's hard to do more fine grained
flushes as the icbi instruction, on those processor, for some very
strange reasons (since the cache is virtually mapped) still requires
a valid TLB entry for reading in the target address space, which
isn't something I want to deal with.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>
2007-11-01 07:15:30 -05:00
..
vdso32 powerpc32 vDSO: linker script indentation 2007-10-16 10:01:50 -07:00
vdso64 [POWERPC] Fix 64 bits vDSO DWARF info for CR register 2007-10-17 22:30:09 +10:00
align.c [POWERPC] Handle alignment faults on SPE load/store instructions 2007-09-14 08:51:48 -05:00
asm-offsets.c powerpc: add scaled time accounting 2007-10-18 14:37:28 -07:00
audit.c
binfmt_elf32.c powerpc: Use linux/elfcore-compat.h 2007-10-17 08:42:51 -07:00
btext.c [POWERPC] Clean out a bunch of duplicate includes 2007-08-17 11:01:51 +10:00
clock.c [POWERPC] clk.h interface for platforms 2007-10-03 09:11:56 +10:00
compat_audit.c
cpu_setup_6xx.S Spelling fix: explicitly 2007-10-19 23:22:55 +02:00
cpu_setup_44x.S [POWERPC] 4xx: 440EPx/GRx incorrect write to DDR SDRAM errata workaround 2007-10-03 07:20:18 -05:00
cpu_setup_pa6t.S
cpu_setup_ppc970.S
cputable.c [POWERPC] 4xx: Workaround for the 440EP(x)/GR(x) processors identical PVR issue. 2007-11-01 07:13:43 -05:00
crash.c [POWERPC] Clean out a bunch of duplicate includes 2007-08-17 11:01:51 +10:00
crash_dump.c [POWERPC] FWNMI is only used on pSeries 2007-09-19 15:25:34 +10:00
dma_64.c Update arch/ to use sg helpers 2007-10-22 21:19:59 +02:00
entry_32.S [POWERPC] 4xx: Deal with 44x virtually tagged icache 2007-11-01 07:15:30 -05:00
entry_64.S [POWERPC] Add 1TB workaround for PA6T 2007-10-17 22:30:09 +10:00
firmware.c
fpu.S
head_8xx.S [POWERPC] 8xx: Work around CPU15 erratum. 2007-10-03 20:36:36 -05:00
head_32.S [POWERPC] Use PAGE_OFFSET to tell if an address is user/kernel in SW TLB handlers 2007-10-11 13:36:52 -05:00
head_40x.S [POWERPC] Use PAGE_OFFSET to tell if an address is user/kernel in SW TLB handlers 2007-10-11 13:36:52 -05:00
head_44x.S [POWERPC] Use PAGE_OFFSET to tell if an address is user/kernel in SW TLB handlers 2007-10-11 13:36:52 -05:00
head_64.S [POWERPC] Use 1TB segments 2007-10-12 14:05:17 +10:00
head_booke.h
head_fsl_booke.S [POWERPC] Use PAGE_OFFSET to tell if an address is user/kernel in SW TLB handlers 2007-10-11 13:36:52 -05:00
ibmebus.c Update arch/ to use sg helpers 2007-10-22 21:19:59 +02:00
idle.c [POWERPC] Enable tickless idle and high res timers for powerpc 2007-10-03 15:44:34 +10:00
idle_6xx.S
idle_power4.S
init_task.c
io.c [POWERPC] Move inline asm eieio to using eieio inline function 2007-07-10 00:33:14 -05:00
iomap.c [POWERPC] Add 64-bit resources support to pci_iomap 2007-09-20 07:36:52 -05:00
iommu.c Update arch/ to use sg helpers 2007-10-22 21:19:59 +02:00
irq.c Spelling fix: explicitly 2007-10-19 23:22:55 +02:00
isa-bridge.c
kprobes.c kprobes: support kretprobe blacklist 2007-10-16 09:43:10 -07:00
l2cr_6xx.S Convert files to UTF-8 and some cleanups 2007-10-19 23:21:04 +02:00
legacy_serial.c [POWERPC] Add legacy serial support for OPB with flattened device tree 2007-10-12 14:05:18 +10:00
lparcfg.c [POWERPC] ppc64: support CONFIG_DEBUG_PREEMPT 2007-10-03 11:48:44 +10:00
machine_kexec.c Use extended crashkernel command line on ppc64 2007-10-19 11:53:51 -07:00
machine_kexec_32.c
machine_kexec_64.c
Makefile [POWERPC] 8xx: Move softemu8xx.c from arch/ppc 2007-10-04 11:02:54 -05:00
misc.S
misc_32.S [POWERPC] 4xx: Deal with 44x virtually tagged icache 2007-11-01 07:15:30 -05:00
misc_64.S [POWERPC] kexec: Send slaves to new kernel earlier 2007-06-25 16:55:16 +10:00
module_32.c
module_64.c
msi.c
nvram_64.c [POWERPC] pseries: Eliminate global error_log_cnt variable 2007-08-17 11:01:52 +10:00
of_device.c [POWERPC] Move of_device allocation into of_device.[ch] 2007-10-17 22:30:07 +10:00
of_platform.c [POWERPC] Move of_device allocation into of_device.[ch] 2007-10-17 22:30:07 +10:00
paca.c
pci-common.c [POWERPC] Use alloc_maybe_bootmem() in pcibios_alloc_controller 2007-10-03 15:31:35 +10:00
pci_32.c [POWERPC] null_pci_ops: Use named structure member initializers 2007-08-17 11:01:53 +10:00
pci_64.c [POWERPC] Fix pci domain detection 2007-10-03 11:48:44 +10:00
pci_dn.c [POWERPC] Fix section mismatch in PCI code 2007-09-19 15:25:34 +10:00
pmc.c
ppc32.h
ppc_ksyms.c [POWERPC] Fix build errors when BLOCK=n 2007-09-22 14:49:22 +10:00
proc_ppc64.c
process.c Use helpers to obtain task pid in printks (arch code) 2007-10-19 11:53:43 -07:00
prom.c [POWERPC] 4xx: Workaround for the 440EP(x)/GR(x) processors identical PVR issue. 2007-11-01 07:13:43 -05:00
prom_init.c [POWERPC] prom_init whitespace cleanup, typo fix 2007-09-14 01:33:24 +10:00
prom_parse.c Revert "[POWERPC] Don't complain if size-cells == 0 in prom_parse()" 2007-07-26 13:44:36 +10:00
ptrace.c Consolidate PTRACE_DETACH 2007-10-16 09:42:49 -07:00
ptrace32.c [POWERPC] Add CHECK_FULL_REGS in several places in ptrace code 2007-10-03 11:48:43 +10:00
rtas-proc.c
rtas-rtc.c
rtas.c
rtas_flash.c Slab API: remove useless ctor parameter and reorder parameters 2007-10-17 08:42:45 -07:00
rtas_pci.c [POWERPC] rtas_pci_ops: Use named structure member initializers 2007-08-17 11:01:53 +10:00
semaphore.c
setup-common.c Convert cpu_sibling_map to be a per cpu variable 2007-10-16 09:42:50 -07:00
setup.h
setup_32.c [POWERPC] Only call ppc_md.setup_arch() if it is provided 2007-10-11 20:39:36 +10:00
setup_64.c [POWERPC] Quieten cache information at boot 2007-10-17 22:30:09 +10:00
signal.c [POWERPC] Implement logging of unhandled signals 2007-10-12 14:05:18 +10:00
signal.h [POWERPC] Less ifdef's in signal.c/signal.h 2007-06-14 22:29:58 +10:00
signal_32.c [POWERPC] Implement logging of unhandled signals 2007-10-12 14:05:18 +10:00
signal_64.c [POWERPC] Implement logging of unhandled signals 2007-10-12 14:05:18 +10:00
smp-tbsync.c
smp.c Convert cpu_sibling_map to be a per cpu variable 2007-10-16 09:42:50 -07:00
softemu8xx.c [POWERPC] 8xx: Move softemu8xx.c from arch/ppc 2007-10-04 11:02:54 -05:00
suspend.c
swsusp.c
swsusp_32.S
swsusp_64.c
swsusp_asm64.S
sys_ppc32.c remove include/asm-*/ipc.h 2007-10-17 08:42:55 -07:00
syscalls.c remove include/asm-*/ipc.h 2007-10-17 08:42:55 -07:00
sysfs.c [POWERPC] Remove warning in arch/powerpc/kernel/sysfs.c 2007-09-14 01:33:22 +10:00
systbl.S [POWERPC] Align the sys_call_table 2007-10-11 14:36:47 +10:00
tau_6xx.c
time.c powerpc: add scaled time accounting 2007-10-18 14:37:28 -07:00
traps.c Use helpers to obtain task pid in printks (arch code) 2007-10-19 11:53:43 -07:00
udbg.c [POWERPC] Add early debug console for CPM serial ports. 2007-10-03 20:35:43 -05:00
udbg_16550.c [POWERPC] 4xx: Implement udbg_getc() for 440 2007-09-19 21:13:17 -05:00
vdso.c [POWERPC] Disable vDSO support for ARCH=ppc where it's not implemented 2007-10-11 20:25:25 +10:00
vecemu.c
vector.S
vio.c Driver core: change add_uevent_var to use a struct 2007-10-12 14:51:01 -07:00
vmlinux.lds.S [POWERPC] Fix modpost warnings from head*.S on ppc32 2007-09-14 08:53:36 -05:00