Benjamin Herrenschmidt ea3cc330ac powerpc/mm: Cleanup handling of execute permission ... This is an attempt at cleaning up a bit the way we handle execute permission on powerpc. _PAGE_HWEXEC is gone, _PAGE_EXEC is now only defined by CPUs that can do something with it, and the myriad of #ifdef's in the I$/D$ coherency code is reduced to 2 cases that hopefully should cover everything. The logic on BookE is a little bit different than what it was though not by much. Since now, _PAGE_EXEC will be set by the generic code for executable pages, we need to filter out if they are unclean and recover it. However, I don't expect the code to be more bloated than it already was in that area due to that change. I could boast that this brings proper enforcing of per-page execute permissions to all BookE and 40x but in fact, we've had that now for some time as a side effect of my previous rework in that area (and I didn't even know it :-) We would only enable execute permission if the page was cache clean and we would only cache clean it if we took and exec fault. Since we now enforce that the later only work if VM_EXEC is part of the VMA flags, we de-fact already enforce per-page execute permissions... Unless I missed something Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>		2009-08-27 13:12:51 +10:00
..
vdso32	powerpc: Enable GCOV	2009-08-20 10:29:28 +10:00
vdso64	powerpc: Enable GCOV	2009-08-20 10:29:28 +10:00
.gitignore	powerpc: Ignore generated vmlinux.lds in git	2008-10-07 14:26:18 +11:00
align.c	powerpc: Keep track of emulated instructions	2009-05-21 15:44:26 +10:00
asm-offsets.c	Merge commit 'paulus-perf/master' into next	2009-08-20 11:07:56 +10:00
audit.c
btext.c	powerpc: Use the common ascii hex helpers	2008-08-20 16:34:57 +10:00
cacheinfo.c	powerpc/cacheinfo: Rename cache_dir per-cpu variable	2009-01-13 14:48:02 +11:00
cacheinfo.h	powerpc: Rewrite sysfs processor cache info code	2009-01-08 16:25:10 +11:00
clock.c
compat_audit.c
cpu_setup_6xx.S	powerpc: Use names rather than numbers for SPRGs (v2)	2009-08-20 10:12:27 +10:00
cpu_setup_44x.S	AMCC PPC 460SX redwood SoC platform initial framework	2009-02-14 14:41:29 -05:00
cpu_setup_fsl_booke.S	powerpc/fsl-booke: Enable L1 cache on e500v1/e500v2/e500mc CPUs	2009-06-15 21:45:30 -05:00
cpu_setup_pa6t.S
cpu_setup_ppc970.S	powerpc: Use LOAD_REG_IMMEDIATE only for constants on 64-bit	2008-09-15 11:08:35 -07:00
cputable.c	powerpc: Add AMCC 460EX/460GT Rev. B support to cputable.c	2009-08-20 10:25:18 +10:00
crash_dump.c	powerpc: Unify opcode definitions and support	2009-02-23 10:48:56 +11:00
crash.c	powerpc: Increase CRASH_HANDLER_MAX	2008-06-30 22:31:00 +10:00
dbell.c	powerpc: Add support for using doorbells for SMP IPI	2009-02-23 15:53:03 +11:00
dma-iommu.c	powerpc: Change u64/s64 to a long long integer type	2009-01-13 14:47:59 +11:00
dma-swiotlb.c	powerpc: Add support for swiotlb on 32-bit	2009-06-09 16:49:18 +10:00
dma.c	powerpc/dma: pci_set_dma_mask() shouldn't fail if mask fits in RAM	2009-08-10 16:36:38 +10:00
entry_32.S	powerpc: Use names rather than numbers for SPRGs (v2)	2009-08-20 10:12:27 +10:00
entry_64.S	powerpc: Remaining 64-bit Book3E support	2009-08-20 10:25:11 +10:00
exceptions-64e.S	powerpc: Remaining 64-bit Book3E support	2009-08-20 10:25:11 +10:00
exceptions-64s.S	Merge commit 'paulus-perf/master' into next	2009-08-20 11:07:56 +10:00
firmware.c
fpu.S	powerpc: Use names rather than numbers for SPRGs (v2)	2009-08-20 10:12:27 +10:00
ftrace.c	Merge branch 'tracing-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip	2009-06-20 10:56:46 -07:00
head_8xx.S	powerpc: Use names rather than numbers for SPRGs (v2)	2009-08-20 10:12:27 +10:00
head_32.S	powerpc: Use names rather than numbers for SPRGs (v2)	2009-08-20 10:12:27 +10:00
head_40x.S	powerpc: Use names rather than numbers for SPRGs (v2)	2009-08-20 10:12:27 +10:00
head_44x.S	powerpc/mm: Cleanup handling of execute permission	2009-08-27 13:12:51 +10:00
head_64.S	powerpc: Remaining 64-bit Book3E support	2009-08-20 10:25:11 +10:00
head_booke.h	powerpc: Use names rather than numbers for SPRGs (v2)	2009-08-20 10:12:27 +10:00
head_fsl_booke.S	powerpc/mm: Cleanup handling of execute permission	2009-08-27 13:12:51 +10:00
ibmebus.c	powerpc: struct device - replace bus_id with dev_name(), dev_set_name()	2008-12-16 15:53:38 +11:00
idle_6xx.S	powerpc: Fix for getting CPU number in power_save_ppc32_restore()	2008-09-03 20:53:47 +10:00
idle_e500.S	powerpc: Fix for getting CPU number in power_save_ppc32_restore()	2008-09-03 20:53:47 +10:00
idle_power4.S
idle.c	powerpc: ftrace, do not latency trace idle	2008-11-20 10:51:15 -08:00
init_task.c	mm: consolidate init_mm definition	2009-06-16 19:47:28 -07:00
io.c	ftrace: support for PowerPC	2008-05-23 22:43:11 +02:00
iomap.c
iommu.c	powerpc: Change u64/s64 to a long long integer type	2009-01-13 14:47:59 +11:00
irq.c	Merge commit 'origin/master' into next	2009-06-12 16:53:38 +10:00
isa-bridge.c	[POWERPC] Remove leftover printk in isa-bridge.c	2008-05-09 20:22:59 +10:00
kgdb.c	kgdb, x86, arm, mips, powerpc: ignore user space single stepping	2008-09-26 10:36:41 -05:00
kprobes.c	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial	2009-01-07 11:31:52 -08:00
l2cr_6xx.S
legacy_serial.c	powerpc/powermac: Fixup default serial port device for pmac_zilog	2008-07-28 16:30:53 +10:00
lparcfg.c	powerpc: Display processor virtualization resource allocs in lparcfg	2009-06-02 10:36:10 +10:00
machine_kexec_32.c	kexec jump: rename KEXEC_CONTROL_CODE_SIZE to KEXEC_CONTROL_PAGE_SIZE	2008-08-15 08:35:42 -07:00
machine_kexec_64.c	powerpc/32: Setup OF properties for kdump	2008-12-23 15:13:29 +11:00
machine_kexec.c	powerpc: Allow mem=x cmdline to work with 4G+	2009-05-15 16:43:41 +10:00
Makefile	Merge commit 'paulus-perf/master' into next	2009-08-20 11:07:56 +10:00
misc_32.S	powerpc/44x: Support 16K/64K base page sizes on 44x	2008-12-29 09:53:25 +11:00
misc_64.S	powerpc: Move VMX and VSX asm code to vector.S	2009-06-09 16:46:25 +10:00
misc.S	powerpc: Use LOAD_REG_IMMEDIATE only for constants on 64-bit	2008-09-15 11:08:35 -07:00
module_32.c	powerpc/ppc32: ftrace, dynamic ftrace to handle modules	2008-11-20 10:52:53 -08:00
module_64.c	powerpc: Unify opcode definitions and support	2009-02-23 10:48:56 +11:00
module.c	module: cleanup FIXME comments about trimming exception table entries.	2009-06-12 21:47:05 +09:30
mpc7450-pmu.c	perf_counter/powerpc: Check oprofile_cpu_type for NULL before using it	2009-08-06 13:55:09 +02:00
msi.c	powerpc/PCI: include pci.h in powerpc MSI implementation	2009-03-25 08:54:29 -07:00
nvram_64.c
of_device.c	powerpc/of: Fix usage of dev_set_name() in of_device_alloc()	2009-06-26 16:55:35 +10:00
of_platform.c	dma-mapping: replace all DMA_32BIT_MASK macro with DMA_BIT_MASK(32)	2009-04-07 08:31:11 -07:00
paca.c	powerpc: Add PACA fields specific to 64-bit Book3E processors	2009-08-20 10:25:08 +10:00
pci_32.c	powerpc/pci: Remove redundant pcnet32 fixup	2009-05-21 15:44:24 +10:00
pci_64.c	powerpc: Fix warning when printing a resource_size_t	2009-06-09 16:47:41 +10:00
pci_dn.c	powerpc/pci: Move pseries code into pseries platform specific area	2009-05-21 15:44:24 +10:00
pci-common.c	powerpc/pci: Fix annotation of pcibios_claim_one_bus	2009-06-02 11:09:12 +10:00
perf_callchain.c	perf_counter: powerpc: Add callchain support	2009-08-18 14:48:47 +10:00
perf_counter.c	perf_counter/powerpc: Fix oops on cpus without perf_counter hardware support	2009-08-09 12:54:37 +02:00
pmc.c	[POWERPC] Made FSL Book-E PMC support more generic	2008-02-05 23:34:14 -06:00
power4-pmu.c	perf_counter/powerpc: Check oprofile_cpu_type for NULL before using it	2009-08-06 13:55:09 +02:00
power5-pmu.c	perf_counter/powerpc: Check oprofile_cpu_type for NULL before using it	2009-08-06 13:55:09 +02:00
power5+-pmu.c	perf_counter/powerpc: Check oprofile_cpu_type for NULL before using it	2009-08-06 13:55:09 +02:00
power6-pmu.c	perf_counter/powerpc: Check oprofile_cpu_type for NULL before using it	2009-08-06 13:55:09 +02:00
power7-pmu.c	perf_counter/powerpc: Check oprofile_cpu_type for NULL before using it	2009-08-06 13:55:09 +02:00
ppc32.h	powerpc: Add VSX context save/restore, ptrace and signal support	2008-07-01 11:28:50 +10:00
ppc970-pmu.c	perf_counter/powerpc: Check oprofile_cpu_type for NULL before using it	2009-08-06 13:55:09 +02:00
ppc_ksyms.c	powerpc: Export cacheable_memzero as its now used in a driver	2009-01-08 16:25:17 +11:00
ppc_save_regs.S	powerpc: Prepare xmon_save_regs for use with kdump	2008-12-23 15:13:28 +11:00
proc_ppc64.c	powerpc: use non-racy method for proc entries creation	2008-04-29 08:06:22 -07:00
process.c	powerpc: Clean ifdef usage in copy_thread()	2009-08-20 10:12:43 +10:00
prom_init_check.sh	powerpc: Print linux_banner in prom_init	2009-03-11 17:11:33 +11:00
prom_init.c	powerpc/prom_init: Evaluate mem kernel parameter for early allocation	2009-08-20 10:29:25 +10:00
prom_parse.c	powerpc: Fix of_node_put() exit path in of_irq_map_one()	2009-04-20 12:18:43 -06:00
prom.c	powerpc: Shield code specific to 64-bit server processors	2009-06-09 16:47:38 +10:00
ptrace32.c	headers: smp_lock.h redux	2009-07-12 12:22:34 -07:00
ptrace.c	powerpc: Fix booke user_disable_single_step()	2009-07-15 17:41:45 +10:00
reloc_64.S	powerpc: Make the 64-bit kernel as a position-independent executable	2008-09-15 11:08:38 -07:00
rtas_flash.c	proc 2/2: remove struct proc_dir_entry::owner	2009-03-31 01:14:44 +04:00
rtas_pci.c	powerpc/pci: Clean up direct access to sysdata by RTAS	2009-05-21 15:44:23 +10:00
rtas-proc.c	[POWERPC] Fix sparse warnings in arch/powerpc/kernel	2008-05-14 22:31:59 +10:00
rtas-rtc.c
rtas.c	powerpc: Use one common impl. of RTAS timebase sync and use raw spinlock	2009-06-26 16:55:25 +10:00
setup_32.c	powerpc: Add irqtrace support for 32-bit powerpc	2009-06-26 14:37:27 +10:00
setup_64.c	powerpc: Remaining 64-bit Book3E support	2009-08-20 10:25:11 +10:00
setup-common.c	powerpc: Remove duplicated #include's	2009-04-07 15:18:58 +10:00
setup.h
signal_32.c	powerpc: Sanitize stack pointer in signal handling code	2009-03-27 16:58:24 +11:00
signal_64.c	powerpc: Sanitize stack pointer in signal handling code	2009-03-27 16:58:24 +11:00
signal.c	powerpc: Sanitize stack pointer in signal handling code	2009-03-27 16:58:24 +11:00
signal.h	powerpc: Sanitize stack pointer in signal handling code	2009-03-27 16:58:24 +11:00
smp-tbsync.c	powerpc: Silence software timebase sync	2008-11-05 22:08:28 +11:00
smp.c	powerpc/pmac: Fix issues with PowerMac "PowerSurge" SMP	2009-06-26 14:37:24 +10:00
softemu8xx.c	Remove asm/a.out.h files for all architectures without a.out support.	2008-09-06 19:30:24 +01:00
stacktrace.c	powerpc: Removed duplicated include in stacktrace.c	2008-07-28 16:30:47 +10:00
suspend.c	PAGE_ALIGN(): correctly handle 64-bit values on 32-bit architectures	2008-07-24 10:47:21 -07:00
swsusp_32.S	powerpc/mm: Introduce MMU features	2008-12-21 14:21:16 +11:00
swsusp_64.c
swsusp_asm64.S	powerpc: Fix 64-bit hibernation with 64k pages	2008-10-07 14:26:20 +11:00
swsusp.c	powerpc/mm: Split mmu_context handling	2008-12-21 14:21:15 +11:00
sys_ppc32.c	powerpc: Add compat_sys_truncate	2009-08-20 10:12:34 +10:00
syscalls.c	powerpc/mm: Add Strong Access Ordering support	2008-07-09 16:30:45 +10:00
sysfs.c	powerpc: Fix bugs introduced by sysfs changes	2009-03-27 16:58:24 +11:00
systbl_chk.c	[POWERPC] Fix a couple of copyright symbols	2008-01-25 22:52:50 +11:00
systbl_chk.sh	[POWERPC] Fix a couple of copyright symbols	2008-01-25 22:52:50 +11:00
systbl.S
tau_6xx.c	on_each_cpu(): kill unused 'retry' parameter	2008-06-26 11:24:38 +02:00
time.c	powerpc: Use DIV_ROUND_CLOSEST in time init code	2009-08-20 10:29:26 +10:00
traps.c	powerpc: Add PTRACE_SINGLEBLOCK support	2009-06-09 13:29:25 +10:00
udbg_16550.c	powerpc/440: Fix warning early debug code	2009-06-26 16:55:35 +10:00
udbg.c	powerpc/udbg: Fix lost byte during console handover; change LFCR to CRLF	2009-03-11 17:11:34 +11:00
vdso.c	powerpc: Move 64bit VDSO to improve context switch performance	2009-08-20 10:12:24 +10:00
vecemu.c
vector.S	powerpc: Use names rather than numbers for SPRGs (v2)	2009-08-20 10:12:27 +10:00
vio.c	workqueue: add to_delayed_work() helper function	2009-04-02 19:04:50 -07:00
vmlinux.lds.S	powerpc/vmlinux.lds: Move _edata down	2009-08-20 10:29:29 +10:00