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4d22d07a07
freebsd-skq/sys/arm
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Konstantin Belousov 4d22d07a07 Add support for usermode (vdso-like) gettimeofday(2) and 
clock_gettime(2) on ARMv7 and ARMv8 systems which have architectural
generic timer hardware. It is similar how the RDTSC timer is used in
userspace on x86.

Fix a permission problem where generic timer access from EL0 (or
userspace on v7) was not properly initialized on APs.

For ARMv7, mark the stack non-executable. The shared page is added for
all arms (including ARMv8 64bit), and the signal trampoline code is
moved to the page.

Reviewed by:	andrew
Discussed with:	emaste, mmel
Sponsored by:	The FreeBSD Foundation
Differential revision:	https://reviews.freebsd.org/D4209
2015-12-07 12:20:26 +00:00
..
allwinner Move more bus_space_* files to be built by files.arm. This leaves the 2015-11-21 15:30:08 +00:00
altera/socfpga Create device options for the two common ARM timers. 2015-11-21 16:23:56 +00:00
amlogic/aml8726 Add glue driver for Amlogic Meson Gigabit Ethernet Controller 2015-12-03 09:37:20 +00:00
annapurna/alpine Move more bus_space_* files to be built by files.arm. This leaves the 2015-11-21 15:30:08 +00:00
arm Add support for usermode (vdso-like) gettimeofday(2) and 2015-12-07 12:20:26 +00:00
at91 Move more bus_space_* files to be built by files.arm. This leaves the 2015-11-21 15:30:08 +00:00
broadcom/bcm2835 Create device options for the two common ARM timers. 2015-11-21 16:23:56 +00:00
cavium/cns11xx Move more bus_space_* files to be built by files.arm. This leaves the 2015-11-21 15:30:08 +00:00
conf Create device options for the two common ARM timers. 2015-11-21 16:23:56 +00:00
freescale Rename sysctl node hw.imx6 to hw.imx. Move its definition to imx_machdep.c 2015-11-26 17:26:52 +00:00
include Add support for usermode (vdso-like) gettimeofday(2) and 2015-12-07 12:20:26 +00:00
lpc Move more bus_space_* files to be built by files.arm. This leaves the 2015-11-21 15:30:08 +00:00
mv Move more bus_space_* files to be built by files.arm. This leaves the 2015-11-21 15:30:08 +00:00
qemu Create device options for the two common ARM timers. 2015-11-21 16:23:56 +00:00
rockchip Create device options for the two common ARM timers. 2015-11-21 16:23:56 +00:00
samsung/exynos Add support for exynos5_ehci in loader 2015-11-27 18:22:04 +00:00
ti Move hdmi_if.m to files.arm so other kernel configs can use it. 2015-11-21 16:25:03 +00:00
versatile Move more bus_space_* files to be built by files.arm. This leaves the 2015-11-21 15:30:08 +00:00
xilinx Create device options for the two common ARM timers. 2015-11-21 16:23:56 +00:00
xscale Move more bus_space_* files to be built by files.arm. This leaves the 2015-11-21 15:30:08 +00:00