Techwizz/kernel-fxtec-pro1x
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity
kernel-fxtec-pro1x/include/asm-x86
History
Andrea Righi 27ac792ca0 PAGE_ALIGN(): correctly handle 64-bit values on 32-bit architectures 
On 32-bit architectures PAGE_ALIGN() truncates 64-bit values to the 32-bit
boundary. For example:

	u64 val = PAGE_ALIGN(size);

always returns a value < 4GB even if size is greater than 4GB.

The problem resides in PAGE_MASK definition (from include/asm-x86/page.h for
example):

#define PAGE_SHIFT      12
#define PAGE_SIZE       (_AC(1,UL) << PAGE_SHIFT)
#define PAGE_MASK       (~(PAGE_SIZE-1))
...
#define PAGE_ALIGN(addr)       (((addr)+PAGE_SIZE-1)&PAGE_MASK)

The "~" is performed on a 32-bit value, so everything in "and" with
PAGE_MASK greater than 4GB will be truncated to the 32-bit boundary.
Using the ALIGN() macro seems to be the right way, because it uses
typeof(addr) for the mask.

Also move the PAGE_ALIGN() definitions out of include/asm-*/page.h in
include/linux/mm.h.

See also lkml discussion: http://lkml.org/lkml/2008/6/11/237

[akpm@linux-foundation.org: fix drivers/media/video/uvc/uvc_queue.c]
[akpm@linux-foundation.org: fix v850]
[akpm@linux-foundation.org: fix powerpc]
[akpm@linux-foundation.org: fix arm]
[akpm@linux-foundation.org: fix mips]
[akpm@linux-foundation.org: fix drivers/media/video/pvrusb2/pvrusb2-dvb.c]
[akpm@linux-foundation.org: fix drivers/mtd/maps/uclinux.c]
[akpm@linux-foundation.org: fix powerpc]
Signed-off-by: Andrea Righi <righi.andrea@gmail.com>
Cc: <linux-arch@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-07-24 10:47:21 -07:00
..
mach-bigsmp x86: APIC: remove apic_write_around(); use alternatives 2008-07-18 12:51:21 +02:00
mach-default x86: convert Dprintk to pr_debug 2008-07-21 21:35:38 +02:00
mach-es7000 x86: APIC: remove apic_write_around(); use alternatives 2008-07-18 12:51:21 +02:00
mach-generic x86: extend and use x86_quirks to clean up NUMAQ code 2008-07-20 09:25:52 +02:00
mach-numaq x86: remove unused file after numaq etc depends on genericarch 2008-07-08 10:38:54 +02:00
mach-rdc321x
mach-summit x86: APIC: remove apic_write_around(); use alternatives 2008-07-18 12:51:21 +02:00
mach-voyager Merge branch 'generic-ipi' into generic-ipi-for-linus 2008-07-15 21:55:59 +02:00
uv x86 BIOS interface for RTC on SGI UV 2008-07-18 14:35:14 +02:00
visws x86, VisWS: turn into generic arch, move definitions 2008-07-10 18:55:40 +02:00
xen x86: rename PTE_MASK to PTE_PFN_MASK 2008-07-22 10:43:44 +02:00
a.out-core.h
a.out.h
acpi.h x86: use acpi_numa_init to parse on 32-bit numa 2008-07-08 10:38:47 +02:00
agp.h
alternative-asm.h
alternative.h ftrace: use nops instead of jmp 2008-05-23 20:33:28 +02:00
amd_iommu.h x86, AMD IOMMU: add amd_iommu.h to export functions to the generic x86 dma code 2008-06-27 10:12:21 +02:00
amd_iommu_types.h x86, AMD IOMMU: replace DEVID macro with a function 2008-07-11 18:01:18 +02:00
apic.h x86: convert Dprintk to pr_debug 2008-07-21 21:35:38 +02:00
apicdef.h
arch_hooks.h x86: add ->pre_time_init to x86_quirks 2008-07-20 09:25:52 +02:00
asm.h x86: use macros from asm.h. 2008-07-09 09:14:12 +02:00
atomic.h
atomic_32.h
atomic_64.h Merge branch 'x86/uv' into x86/devel 2008-07-08 12:24:13 +02:00
auxvec.h
bios_ebda.h x86: extract common part of head32.c and head64.c into head.c 2008-06-05 15:10:02 +02:00
bitops.h x86, cleanup: fix description of __fls(): __fls(0) is undefined 2008-07-18 14:32:38 +02:00
boot.h x86: cleanup boot-heap usage 2008-04-19 19:19:54 +02:00
bootparam.h x86: move reserve_setup_data to setup.c 2008-07-08 13:16:14 +02:00
bug.h
bugs.h
byteorder.h
cache.h
cacheflush.h
calgary.h
calling.h x86 ptrace: unify syscall tracing 2008-07-16 12:15:17 -07:00
checksum.h
checksum_32.h
checksum_64.h
cmpxchg.h
cmpxchg_32.h
cmpxchg_64.h x86, 64-bit: add sync_cmpxchg 2008-07-08 13:10:58 +02:00
compat.h
cpu.h
cpufeature.h x86: APIC: remove apic_write_around(); use alternatives 2008-07-18 12:51:21 +02:00
cputime.h
current.h x86: unify current.h 2008-05-25 08:58:35 +02:00
debugreg.h
delay.h x86: delay lib unification build fix 2008-07-09 09:13:59 +02:00
desc.h Merge commit 'v2.6.26' into x86/core 2008-07-14 11:37:46 +02:00
desc_defs.h x86, 64-bit: add gate_offset() and gate_segment() macros 2008-07-08 13:10:28 +02:00
device.h
div64.h remove div_long_long_rem 2008-05-01 08:03:58 -07:00
dma-mapping.h x86: reduce forbid_dac's visibility 2008-07-18 14:39:37 -07:00
dma.h
dmi.h x86: use acpi_numa_init to parse on 32-bit numa 2008-07-08 10:38:47 +02:00
ds.h
dwarf2.h x86: Fix compile error with CONFIG_AS_CFI=n 2008-07-15 15:30:29 +02:00
e820.h x86: seperate memtest from init_64.c 2008-07-18 14:10:27 +02:00
edac.h
efi.h x86: reserve EFI memory map with reserve_early 2008-06-05 15:10:02 +02:00
elf.h x86/paravirt, 64-bit: make load_gs_index() a paravirt operation 2008-07-08 13:15:58 +02:00
emergency-restart.h
errno.h
fb.h
fcntl.h
fixmap.h x86/paravirt/xen: add set_fixmap pv_mmu_ops 2008-06-20 15:09:56 +02:00
fixmap_32.h x86: i386: reduce boot fixmap space 2008-07-18 16:17:52 -07:00
fixmap_64.h x86: make 64bit hpet_set_mapping to use ioremap too, v2 2008-07-14 09:24:17 +02:00
floppy.h
frame.h
ftrace.h ftrace: copy + paste typo in asm/ftrace.h 2008-07-18 13:14:08 +02:00
futex.h asm-*/futex.h should include linux/uaccess.h 2008-04-30 08:29:52 -07:00
gart.h x86: make only GART code include gart.h 2008-07-11 11:00:54 +02:00
genapic.h
genapic_32.h x86: I/O APIC: remove an IRQ2-mask hack 2008-07-13 11:43:48 +02:00
genapic_64.h x86: I/O APIC: remove an IRQ2-mask hack 2008-07-13 11:43:48 +02:00
geode.h x86, geode: add a VSA2 ID for General Software 2008-06-19 14:19:03 +02:00
gpio.h
hardirq.h x86: make /proc/stat account for all interrupts 2008-05-25 07:11:49 +02:00
hardirq_32.h
hardirq_64.h
highmem.h x86: kill bad_ppro 2008-07-08 10:38:19 +02:00
hpet.h x86: merge tsc calibration 2008-07-09 07:43:25 +02:00
hugetlb.h hugetlb: modular state for hugetlb page size 2008-07-24 10:47:17 -07:00
hw_irq.h Merge branch 'generic-ipi' into generic-ipi-for-linus 2008-07-15 21:55:59 +02:00
hypertransport.h
i387.h x86: fix broken math-emu with lazy allocation of fpu area 2008-06-04 13:11:46 +02:00
i8253.h
i8259.h x86: automatical unification of i8259.c 2008-05-24 16:44:26 +02:00
ia32.h
ia32_unistd.h
ide.h ide: remove ide_init_default_irq() macro 2008-04-18 00:46:35 +02:00
idle.h
intel_arch_perfmon.h
io.h - x86: move early_ioremap prototypes to io.h 2008-07-08 13:16:12 +02:00
io_32.h access_process_vm device memory infrastructure 2008-07-24 10:47:15 -07:00
io_64.h access_process_vm device memory infrastructure 2008-07-24 10:47:15 -07:00
io_apic.h x86: let setup_arch call init_apic_mappings for 32bit 2008-07-08 13:16:04 +02:00
ioctl.h
ioctls.h
iommu.h x86: remove ifdef CONFIG_GART_IOMMU in pci-dma.c 2008-07-11 11:00:54 +02:00
ipcbuf.h
ipi.h Merge branch 'linus' into cpus4096 2008-07-16 00:29:07 +02:00
irq.h x86: unify irq.h 2008-05-12 21:28:05 +02:00
irq_regs.h
irq_regs_32.h
irq_regs_64.h
irq_vectors.h Merge branch 'generic-ipi' into generic-ipi-for-linus 2008-07-15 21:55:59 +02:00
irqflags.h Merge branch 'auto-ftrace-next' into tracing/for-linus 2008-07-14 16:11:52 +02:00
ist.h
k8.h
Kbuild
kdebug.h x86: mmiotrace full patch, preview 1 2008-05-24 11:22:12 +02:00
kexec.h
kgdb.h x86: kgdb support 2008-04-17 20:05:37 +02:00
kmap_types.h
kprobes.h
kvm.h KVM: SVM: add tracing support for TDP page faults 2008-07-20 12:40:48 +03:00
kvm_host.h KVM: fix exception entry / build bug, on 64-bit 2008-07-21 11:03:32 +02:00
kvm_para.h x86: KVM guest: Add memory clobber to hypercalls 2008-07-06 11:05:18 +03:00
kvm_x86_emulate.h KVM: x86 emulator: lazily evaluate segment registers 2008-07-20 12:42:35 +03:00
ldt.h
lguest.h
lguest_hcall.h
linkage.h
local.h
math_emu.h
mc146818rtc.h
mca.h
mca_dma.h
mce.h
mman.h
mmconfig.h fix build bug in "x86: add PCI extended config space access for AMD Barcelona" 2008-06-10 12:32:53 +02:00
mmu.h
mmu_context.h x86: unify mmu_context.h 2008-07-08 13:10:31 +02:00
mmu_context_32.h x86: unify mmu_context.h 2008-07-08 13:10:31 +02:00
mmu_context_64.h x86: unify mmu_context.h 2008-07-08 13:10:31 +02:00
mmx.h
mmzone.h
mmzone_32.h x86: make generic arch support NUMAQ 2008-06-10 11:34:42 +02:00
mmzone_64.h
module.h
mpspec.h Merge branch 'x86/uv' into x86/devel 2008-07-08 12:24:13 +02:00
mpspec_def.h x86: increase MAX_APICS for very large x86-64 configs 2008-07-08 12:23:29 +02:00
msgbuf.h
msidef.h
msr-index.h x86: cleanup C1E enabled detection 2008-06-10 15:52:07 +02:00
msr.h x86: add memory barriers to wrmsr 2008-07-08 13:10:24 +02:00
mtrr.h
mutex.h
mutex_32.h
mutex_64.h
namei.h
nmi.h x86: nmi_watchdog - introduce nmi_watchdog_active() helper 2008-07-08 12:51:42 +02:00
nops.h
numa.h
numa_32.h x86: introduce init_memory_mapping for 32bit #3 2008-07-08 13:10:33 +02:00
numa_64.h x86: introduce initmem_init for 64 bit 2008-07-08 12:50:14 +02:00
numaq.h x86: fix numaq_tsc_disable calling 2008-07-13 08:19:45 +02:00
olpc.h x86: olpc: add One Laptop Per Child architecture support 2008-04-29 08:06:07 -07:00
page.h PAGE_ALIGN(): correctly handle 64-bit values on 32-bit architectures 2008-07-24 10:47:21 -07:00
page_32.h x86: merge zones_sizes_init for numa and non numa on 32-bit 2008-07-08 13:16:22 +02:00
page_64.h x86: map UV chipset space - pagetable 2008-07-09 07:43:23 +02:00
param.h
paravirt.h x86: rename PTE_MASK to PTE_PFN_MASK 2008-07-22 10:43:44 +02:00
parport.h
pat.h x86: rename pat_wc_enabled to pat_enabled 2008-06-12 10:14:27 +02:00
pci-direct.h PCI/x86: early dump pci conf space v2 2008-06-10 10:59:52 -07:00
pci.h x86: move pci_routirq declaration to pci.h 2008-07-08 09:13:08 +02:00
pci_32.h x86: add compilation checks to pci_unmap_*() macros 2008-06-30 12:22:01 +02:00
pci_64.h x86: reserve dma32 early for gart 2008-04-19 19:19:55 +02:00
pda.h x86: remove static boot_cpu_pda array v2 2008-07-08 11:31:25 +02:00
percpu.h x86_64: add workaround for no %gs-based percpu 2008-07-16 10:58:13 +02:00
pgalloc.h x86/paravirt: add a pgd_alloc/free hooks 2008-07-08 13:11:01 +02:00
pgtable-2level-defs.h
pgtable-2level.h
pgtable-3level-defs.h
pgtable-3level.h x86: rename PTE_MASK to PTE_PFN_MASK 2008-07-22 10:43:44 +02:00
pgtable.h x86: add PTE_FLAGS_MASK 2008-07-22 10:43:45 +02:00
pgtable_32.h x86: add PTE_FLAGS_MASK 2008-07-22 10:43:45 +02:00
pgtable_64.h x86: rename PTE_MASK to PTE_PFN_MASK 2008-07-22 10:43:44 +02:00
poll.h
posix_types.h fix asm-x86/{posix_types,unistd}.h 2008-04-26 17:35:46 +02:00
posix_types_32.h
posix_types_64.h
prctl.h
processor-cyrix.h
processor-flags.h x86: break mutual header inclusion 2008-06-02 12:48:23 +02:00
processor.h Merge branch 'cpus4096-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip 2008-07-23 18:37:44 -07:00
proto.h x86: add flags parameter to reserve_bootmem_generic() 2008-07-08 11:49:49 +02:00
ptrace-abi.h x86 ptrace: unify syscall tracing 2008-07-16 12:15:17 -07:00
ptrace.h x86: break mutual header inclusion 2008-06-02 12:48:23 +02:00
pvclock-abi.h x86: Add structs and functions for paravirt clocksource 2008-06-24 21:02:31 +03:00
pvclock.h x86: Add structs and functions for paravirt clocksource 2008-06-24 21:02:31 +03:00
reboot.h x86: constify data in reboot.c 2008-05-25 08:58:30 +02:00
reboot_fixups.h
required-features.h x86, 64-bit: PSE no longer a hard requirement 2008-07-08 13:11:08 +02:00
resource.h
resume-trace.h x86: move tracedata to RODATA 2008-05-25 07:09:47 +02:00
rio.h x86: remove duplicate get_bios_ebda() from rio.h 2008-04-26 17:35:47 +02:00
rtc.h
rwlock.h
rwsem.h
scatterlist.h x86: use dma_length in i386 2008-04-19 19:19:57 +02:00
seccomp.h
seccomp_32.h x86: fix incomplete include guard in include/asm-x86/seccomp_32.h 2008-06-02 12:45:28 +02:00
seccomp_64.h x86: more header fixes 2008-06-18 12:27:03 +02:00
sections.h
segment.h x86: unify and correct the GDT_ENTRY() macro 2008-07-17 11:29:24 -07:00
semaphore.h
sembuf.h
serial.h
setup.h Merge branches 'x86/urgent', 'x86/amd-iommu', 'x86/apic', 'x86/cleanups', 'x86/core', 'x86/cpu', 'x86/fixmap', 'x86/gart', 'x86/kprobes', 'x86/memtest', 'x86/modules', 'x86/nmi', 'x86/pat', 'x86/reboot', 'x86/setup', 'x86/step', 'x86/unify-pci', 'x86/uv', 'x86/xen' and 'xen-64bit' into x86/for-linus 2008-07-21 16:37:17 +02:00
shmbuf.h
shmparam.h
sigcontext.h
sigcontext32.h
siginfo.h
signal.h Fix typos from signal_32/64.h merge 2008-07-18 17:59:13 +02:00
smp.h x86_64: unstatic get_local_pda 2008-07-16 10:55:07 +02:00
socket.h
sockios.h
sparsemem.h
spinlock.h paravirt: introduce a "lock-byte" spinlock implementation 2008-07-16 11:15:53 +02:00
spinlock_types.h x86/paravirt: add hooks for spinlock operations 2008-07-16 11:15:52 +02:00
srat.h x86: remove acpi_srat config v2 2008-07-08 15:49:08 +02:00
stacktrace.h
stat.h
statfs.h
string.h
string_32.h x86: string_32.h: workaround for broken gcc 4.0 2008-05-26 13:36:53 -07:00
string_64.h
suspend.h
suspend_32.h x86: more header fixes 2008-06-18 12:27:03 +02:00
suspend_64.h
swiotlb.h x86: remove ifdef CONFIG_SWIOTLB in pci-dma.c 2008-07-11 11:00:55 +02:00
sync_bitops.h
system.h x86: fix savesegment() bug causing crashes on 64-bit 2008-07-11 19:51:47 +02:00
system_64.h
tce.h
termbits.h
termios.h
therm_throt.h
thread_info.h Merge branch 'sched/for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip 2008-07-23 19:36:53 -07:00
time.h x86: merge tsc_init and clocksource code 2008-07-09 07:43:27 +02:00
timer.h x86: rename paravirtualized TSC functions 2008-07-09 07:43:28 +02:00
timex.h
tlb.h
tlbflush.h x86: prevent PGE flush from interruption/preemption 2008-05-23 18:16:15 +02:00
topology.h x86: change _node_to_cpumask_ptr to return const ptr 2008-07-13 19:11:58 +02:00
trampoline.h x86: move suspend wakeup code to C 2008-04-17 17:41:37 +02:00
traps.h x86: introducing asm-x86/traps.h 2008-07-18 18:51:57 +02:00
tsc.h x86: merge tsc_init and clocksource code 2008-07-09 07:43:27 +02:00
types.h x86: types: use <asm-generic/int-*.h> for the x86 architecture 2008-05-02 16:18:42 -07:00
uaccess.h x86: define architectural characteristics in uaccess.h. 2008-07-09 09:14:29 +02:00
uaccess_32.h x86: define architectural characteristics in uaccess.h. 2008-07-09 09:14:29 +02:00
uaccess_64.h x86: introduce copy_user_handle_tail() routine 2008-07-09 15:51:03 +02:00
ucontext.h
unaligned.h kernel: Move arches to use common unaligned access 2008-04-29 08:06:27 -07:00
unistd.h fix asm-x86/{posix_types,unistd}.h 2008-04-26 17:35:46 +02:00
unistd_32.h
unistd_64.h x86-64: remove unnecessary ptregs call stubs 2008-06-19 14:25:11 +02:00
unwind.h
user.h
user32.h
user_32.h
user_64.h
vdso.h x86_64: further cleanup of 32-bit compat syscall mechanisms 2008-07-16 11:08:27 +02:00
vga.h
vgtod.h
vic.h
vm86.h x86: break mutual header inclusion 2008-06-02 12:48:23 +02:00
vmi.h
vmi_time.h x86: rename paravirtualized TSC functions 2008-07-09 07:43:28 +02:00
voyager.h
vsyscall.h x86: add notrace annotations to vsyscall. 2008-05-23 20:31:39 +02:00
xor.h
xor_32.h x86: more header fixes 2008-06-18 12:27:03 +02:00
xor_64.h x86: more header fixes 2008-06-18 12:27:03 +02:00