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dbf62d5006
linux/arch/arm
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Will Deacon dbf62d5006 ARM: mm: introduce L_PTE_VALID for page table entries 
For long-descriptor translation table formats, the ARMv7 architecture
defines the last two bits of the second- and third-level descriptors to
be:

	x0b	- Invalid
	01b	- Block (second-level), Reserved (third-level)
	11b	- Table (second-level), Page (third-level)

This allows us to define L_PTE_PRESENT as (3 << 0) and use this value to
create ptes directly. However, when determining whether a given pte
value is present in the low-level page table accessors, we only need to
check the least significant bit of the descriptor, allowing us to write
faulting, present entries which are required for PROT_NONE mappings.

This patch introduces L_PTE_VALID, which can be used to test whether a
pte should fault, and updates the low-level page table accessors
accordingly.

Signed-off-by: Will Deacon <will.deacon@arm.com>
2012-11-09 14:13:19 +00:00
..
boot arm-soc: fixes for v3.7-rc3 2012-10-28 11:12:38 -07:00
common ARM: config: sort select statements alphanumerically 2012-10-13 17:11:28 +01:00
configs ARM: versatile: fix versatile_defconfig 2012-10-27 17:46:56 +02:00
crypto arm/crypto: Add optimized AES and SHA1 routines 2012-09-07 04:17:02 +08:00
include ARM: mm: introduce L_PTE_VALID for page table entries 2012-11-09 14:13:19 +00:00
kernel Merge branch 'fixes' of git://git.linaro.org/people/rmk/linux-arm 2012-10-25 15:59:34 -07:00
lib ARM: export default read_current_timer 2012-10-09 20:24:36 +02:00
mach-at91 ARM: at91: fix at91x40 build 2012-10-27 17:46:48 +02:00
mach-bcm2835 ARM: dtb: move all dtb targets to common Makefile 2012-09-20 22:58:17 -07:00
mach-clps711x ARM: config: sort select statements alphanumerically 2012-10-13 17:11:28 +01:00
mach-cns3xxx
mach-davinci ARM: config: sort select statements alphanumerically 2012-10-13 17:11:28 +01:00
mach-dove ARM: dove: Add crypto engine to DT 2012-10-17 17:20:01 +00:00
mach-ebsa110 ARM: soc: driver specific changes 2012-10-01 18:46:13 -07:00
mach-ep93xx ARM: soc: multiplatform enablement 2012-10-01 19:11:38 -07:00
mach-exynos ARM: EXYNOS: Set .smp field of machine descriptor for exynos4-dt 2012-10-22 08:16:44 +09:00
mach-footbridge ARM: config: sort select statements alphanumerically 2012-10-13 17:11:28 +01:00
mach-gemini ARM: gemini: fix the gemini build 2012-09-04 22:17:34 -07:00
mach-h720x ARM: config: sort select statements alphanumerically 2012-10-13 17:11:28 +01:00
mach-highbank Merge branch 'for-v3.7' of git://git.linaro.org/people/mszyprowski/linux-dma-mapping 2012-10-02 19:13:12 -07:00
mach-imx Revert "ARM i.MX25: Fix PWM per clock lookups" 2012-10-27 17:46:56 +02:00
mach-integrator ARM: integrator: use __iomem pointers for MMIO, part 2 2012-10-09 17:27:33 +02:00
mach-iop13xx Merge branch 'late/fixes' into fixes 2012-10-07 07:22:32 -07:00
mach-iop32x Merge branch 'cleanup/__iomem' into next/cleanup 2012-09-22 10:24:29 -07:00
mach-iop33x
mach-ixp4xx ARM: config: sort select statements alphanumerically 2012-10-13 17:11:28 +01:00
mach-kirkwood ARM: Kirkwood: fix disabling CACHE_FEROCEON_L2 2012-10-18 17:04:24 +00:00
mach-ks8695 Merge branch 'late/fixes' into fixes 2012-10-07 07:22:32 -07:00
mach-l7200/include/mach
mach-lpc32xx ARM: soc: multiplatform enablement 2012-10-01 19:11:38 -07:00
mach-mmp ARM: config: sort select statements alphanumerically 2012-10-13 17:11:28 +01:00
mach-msm ARM: config: sort select statements alphanumerically 2012-10-13 17:11:28 +01:00
mach-mv78xx0 Merge branch 'late/fixes' into fixes 2012-10-07 07:22:32 -07:00
mach-mvebu ARM: mvebu: fix build breaks from multi-platform conversion 2012-09-28 22:27:07 +02:00
mach-mxs ARM: soc: multiplatform enablement 2012-10-01 19:11:38 -07:00
mach-netx ARM: netx: move platform_data definitions 2012-09-14 11:17:36 +02:00
mach-nomadik ARM: config: sort select statements alphanumerically 2012-10-13 17:11:28 +01:00
mach-omap1 ASoC: Fixes for v3.7 2012-10-17 14:09:15 +02:00
mach-omap2 ARM: AM33XX: Fix configuration of dmtimer parent clock by dmtimer driverDate:Wed, 17 Oct 2012 13:55:55 -0500 2012-10-23 18:58:21 -07:00
mach-orion5x ARM: soc: late platform updates 2012-10-07 20:55:16 +09:00
mach-picoxcell ARM: initial multiplatform support 2012-09-14 09:22:06 -05:00
mach-prima2 pinctrl: sirf: remove sirfsoc_gpio_set_pull function 2012-10-15 09:09:27 +02:00
mach-pxa ARM: config: sort select statements alphanumerically 2012-10-13 17:11:28 +01:00
mach-realview ARM: config: sort select statements alphanumerically 2012-10-13 17:11:28 +01:00
mach-rpc ARM: rpc: check device_register return code in ecard_probe 2012-10-07 10:33:09 +02:00
mach-s3c24xx Merge branch 'v3.7-samsung-fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung into fixes 2012-10-26 14:45:06 +02:00
mach-s3c64xx ARM: config: sort select statements alphanumerically 2012-10-13 17:11:28 +01:00
mach-s3c2410
mach-s3c2412 ARM: config: sort select statements alphanumerically 2012-10-13 17:11:28 +01:00
mach-s3c2440 ARM: config: sort select statements alphanumerically 2012-10-13 17:11:28 +01:00
mach-s5p64x0 ARM: SAMSUNG: Add naming of s3c64xx-spi devices 2012-10-17 16:47:32 +09:00
mach-s5pc100 ARM: SAMSUNG: Add naming of s3c64xx-spi devices 2012-10-17 16:47:32 +09:00
mach-s5pv210 ARM: SAMSUNG: Add naming of s3c64xx-spi devices 2012-10-17 16:47:32 +09:00
mach-sa1100 ARM: config: sort select statements alphanumerically 2012-10-13 17:11:28 +01:00
mach-shark Merge branch 'late/fixes' into fixes 2012-10-07 07:22:32 -07:00
mach-shmobile ARM: shmobile: r8a7779: I/O address abuse cleanup 2012-10-19 15:39:38 +09:00
mach-socfpga ARM: initial multiplatform support 2012-09-14 09:22:06 -05:00
mach-spear3xx ARM: move all dtb targets out of Makefile.boot 2012-09-14 09:22:04 -05:00
mach-spear6xx ARM: move all dtb targets out of Makefile.boot 2012-09-14 09:22:04 -05:00
mach-spear13xx ARM: SPEAr: Remove unused empty files 2012-10-25 16:34:18 +02:00
mach-tegra ARM: tegra: add tegra_timer clock 2012-10-16 11:15:05 -06:00
mach-u300 ARM: config: sort select statements alphanumerically 2012-10-13 17:11:28 +01:00
mach-ux500 ARM: ux500: Fix build error relating to IRQCHIP_SKIP_SET_WAKE 2012-10-25 08:43:49 +01:00
mach-versatile ARM: config: sort select statements alphanumerically 2012-10-13 17:11:28 +01:00
mach-vexpress Features: 2012-10-07 07:13:01 +09:00
mach-vt8500 arm: vt8500: Fix build warning in uncompress.h 2012-10-07 14:50:06 -07:00
mach-w90x900 ARM: w90x900: move platform_data definitions 2012-09-14 11:18:59 +02:00
mach-zynq
mm ARM: mm: introduce L_PTE_VALID for page table entries 2012-11-09 14:13:19 +00:00
net
nwfpe
oprofile
plat-iop Bunch of perf updates for the ARM backend that pave the way for 2012-09-04 22:12:41 -07:00
plat-mxc ARM i.MX fixes for 3.7-rc 2012-10-25 15:57:40 +02:00
plat-nomadik ARM: config: sort select statements alphanumerically 2012-10-13 17:11:28 +01:00
plat-omap arm-soc: fixes for v3.7-rc3 2012-10-28 11:12:38 -07:00
plat-orion Merge branch 'samsung_platform_data' into staging/for_v3.7 2012-10-05 22:32:05 -03:00
plat-pxa ARM: pxa: move platform_data definitions 2012-09-14 11:18:10 +02:00
plat-s3c24xx ARM: config: sort select statements alphanumerically 2012-10-13 17:11:28 +01:00
plat-samsung ARM: SAMSUNG: Add naming of s3c64xx-spi devices 2012-10-17 16:47:32 +09:00
plat-spear ARM: config: sort select statements alphanumerically 2012-10-13 17:11:28 +01:00
plat-versatile Merge branch 'for-linus' of git://git.linaro.org/people/rmk/linux-arm 2012-10-07 21:20:57 +09:00
tools ARM: be really quiet when building with 'make -s' 2012-10-09 20:29:05 +02:00
vfp ARM: 7483/1: vfp: only advertise VFPv4 in hwcaps if CONFIG_VFPv3 is enabled 2012-08-11 09:15:57 +01:00
xen xen/arm: use the __HVC macro 2012-10-30 10:41:19 -04:00
Kconfig Merge tag 'fixes-for-rmk' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc into fixes 2012-10-22 22:56:09 +01:00
Kconfig-nommu
Kconfig.debug ARM: soc: multiplatform enablement 2012-10-01 19:11:38 -07:00
Makefile ARM: pass -marm to gcc by default for both C and assembler 2012-10-09 20:29:05 +02:00