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32e62c636a
linux-next/arch/ia64/kernel
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Bjorn Helgaas 32e62c636a [IA64] rework memory attribute aliasing 
This closes a couple holes in our attribute aliasing avoidance scheme:

  - The current kernel fails mmaps of some /dev/mem MMIO regions because
    they don't appear in the EFI memory map.  This keeps X from working
    on the Intel Tiger box.

  - The current kernel allows UC mmap of the 0-1MB region of
    /sys/.../legacy_mem even when the chipset doesn't support UC
    access.  This causes an MCA when starting X on HP rx7620 and rx8620
    boxes in the default configuration.

There's more detail in the Documentation/ia64/aliasing.txt file this
adds, but the general idea is that if a region might be covered by
a granule-sized kernel identity mapping, any access via /dev/mem or
mmap must use the same attribute as the identity mapping.

Otherwise, we fall back to using an attribute that is supported
according to the EFI memory map, or to using UC if the EFI memory
map doesn't mention the region.

Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
2006-05-08 16:32:05 -07:00
..
cpufreq [ACPI] IA64 ZX1 buildfix for _PDC patch 2005-12-05 17:24:45 -05:00
acpi-ext.c [IA64] update HP CSR space discovery via ACPI 2006-04-06 14:42:38 -07:00
acpi-processor.c [ACPI] IA64 ZX1 buildfix for _PDC patch 2005-12-05 17:24:45 -05:00
acpi.c [PATCH] EFI: keep physical table addresses in efi structure 2006-03-26 08:56:54 -08:00
asm-offsets.c [IA64] fix circular dependency on generation of asm-offsets.h 2005-09-13 08:50:39 -07:00
brl_emu.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
cyclone.c [IA64] don't report !sn2 or !summit hardware as an error 2006-03-07 15:26:49 -08:00
efi_stub.S Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
efi.c [IA64] rework memory attribute aliasing 2006-05-08 16:32:05 -07:00
entry.h [IA64] Drop spurious paren in entry.h 2005-06-20 09:34:02 -07:00
entry.S [PATCH] Add support for the sys_vmsplice syscall 2006-04-26 10:59:21 +02:00
fsys.S [IA64] cleanup in fsys.S 2006-02-28 08:53:32 -08:00
gate-data.S Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
gate.lds.S [IA64] Add __mca_table to the DISCARD list in gate.lds 2006-03-30 09:04:19 -08:00
gate.S kbuild: ia64 use generic asm-offsets.h support 2005-09-09 22:03:13 +02:00
head.S [IA64] Fix CONFIG_PRINTK_TIME 2006-02-07 15:25:57 -08:00
ia64_ksyms.c [IA64] Remove duplicate EXPORT_SYMBOLs 2006-02-15 13:23:32 -08:00
init_task.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
iosapic.c [IA64] simplify some condition checks in iosapic_check_gsi_range 2006-03-28 10:42:15 -08:00
irq_ia64.c [IA64] assign_irq_vector() should not panic 2005-07-11 10:30:07 -07:00
irq_lsapic.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
irq.c [IA64] support for cpu0 removal 2006-01-05 10:24:20 -08:00
ivt.S [IA64] MCA recovery: kernel context recovery table 2006-03-24 09:49:52 -08:00
jprobes.S [IA64] prevent accidental modification of args in jprobe handler 2006-01-13 14:45:21 -08:00
kprobes.c [PATCH] Switch Kprobes inline functions to __kprobes for ia64 2006-04-19 09:13:53 -07:00
machvec.c IA64: Use early_parm to handle mvec_name and nomca 2006-03-23 14:27:12 -08:00
Makefile [PATCH] DMI: move dmi_scan.c from arch/i386 to drivers/firmware/ 2006-04-14 11:41:25 -07:00
mca_asm.S [IA64] Failure to resume after INIT in user space 2006-04-07 23:01:32 -07:00
mca_drv_asm.S [IA64] MCA recovery: kernel context recovery table 2006-03-24 09:49:52 -08:00
mca_drv.c [IA64] Add mca recovery failure messages 2006-04-27 14:34:01 -07:00
mca_drv.h [IA64] MCA recovery: kernel context recovery table 2006-03-24 09:49:52 -08:00
mca.c [IA64] ia64_wait_for_slaves() incorrectly reports MCA 2006-04-13 14:57:18 -07:00
minstate.h [IA64] MCA/INIT: remove the physical mode path from minstate.h 2005-09-11 14:09:12 -07:00
module.c [IA64] for_each_possible_cpu: ia64 2006-04-06 15:03:49 -07:00
numa.c [IA64] Increase max node count on SN platforms 2006-03-24 13:14:41 -08:00
pal.S Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
palinfo.c [PATCH] Remove __devinit and __cpuinit from notifier_call definitions 2006-04-26 08:30:03 -07:00
patch.c [IA64] add init declaration - gate page functions 2006-03-22 16:54:38 -08:00
perfmon_default_smpl.c [IA64] perfmon: make pfm_sysctl a global, and other cleanup 2005-04-25 13:08:30 -07:00
perfmon_generic.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
perfmon_itanium.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
perfmon_mckinley.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
perfmon_montecito.h [IA64] Perfmon for Montecito 2006-01-16 10:31:44 -08:00
perfmon.c Pull bsp-removal into release branch 2006-03-21 08:16:21 -08:00
process.c [PATCH] kretprobe instance recycled by parent process 2006-03-26 08:57:04 -08:00
ptrace.c [PATCH] drop task argument of audit_syscall_{entry,exit} 2006-05-01 06:06:18 -04:00
sal.c [IA64] avoid broken SAL_CACHE_FLUSH implementations 2006-02-02 13:25:54 -08:00
salinfo.c [PATCH] Remove __devinit and __cpuinit from notifier_call definitions 2006-04-26 08:30:03 -07:00
semaphore.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
setup.c [PATCH] EFI: keep physical table addresses in efi structure 2006-03-26 08:56:54 -08:00
sigframe.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
signal.c [IA64] Delete MCA/INIT sigdelayed code 2006-01-26 13:23:27 -08:00
smp.c [IA64] wider use of for_each_cpu_mask() in arch/ia64 2005-10-25 15:10:08 -07:00
smpboot.c [IA64] New IA64 core/thread detection patch 2006-03-24 13:15:23 -08:00
sys_ia64.c [PATCH] ia64: task_pt_regs() 2006-01-12 09:08:58 -08:00
time.c [IA64] Avoid "u64 foo : 32;" for gcc3 vs. gcc4 compatibility 2006-03-31 10:28:29 -08:00
topology.c Merge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6 2006-04-27 17:01:37 -07:00
traps.c [PATCH] Notifier chain update: API changes 2006-03-27 08:44:50 -08:00
unaligned.c [IA64] sysctl option to silence unaligned trap warnings 2006-02-28 09:42:23 -08:00
uncached.c [IA64] eliminate softlockup warning 2006-01-19 11:18:25 -08:00
unwind_decoder.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
unwind_i.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
unwind.c [IA64] MCA/INIT: remove obsolete unwind code 2005-09-11 14:09:34 -07:00
vmlinux.lds.S [IA64] Move __mca_table out of the __init section 2006-03-29 10:43:04 -08:00