linux-dev - Linux kernel development work

Age	Commit message (Collapse)	Author	Files	Lines
2015-09-09	ARM: swpan: fix nwfpe for uaccess changes	Russell King	1	-1/+2
	NWFPE needs to access userspace to check whether the next instruction is another FP instruction. Allow userspace access for this read. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2015-03-29	ARM: 8322/1: keep .text and .fixup regions closer together	Ard Biesheuvel	1	-1/+1
	This moves all fixup snippets to the .text.fixup section, which is a special section that gets emitted along with the .text section for each input object file, i.e., the snippets are kept much closer to the code they refer to, which helps prevent linker failure on large kernels. Acked-by: Nicolas Pitre <nico@linaro.org> Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2014-07-18	ARM: convert all "mov.* pc, reg" to "bx reg" for ARMv6+	Russell King	1	-4/+4
	ARMv6 and greater introduced a new instruction ("bx") which can be used to return from function calls. Recent CPUs perform better when the "bx lr" instruction is used rather than the "mov pc, lr" instruction, and this sequence is strongly recommended to be used by the ARM architecture manual (section A.4.1.1). We provide a new macro "ret" with all its variants for the condition code which will resolve to the appropriate instruction. Rather than doing this piecemeal, and miss some instances, change all the "mov pc" instances to use the new macro, with the exception of the "movs" instruction and the kprobes code. This allows us to detect the "mov pc, lr" case and fix it up - and also gives us the possibility of deploying this for other registers depending on the CPU selection. Reported-by: Will Deacon <will.deacon@arm.com> Tested-by: Stephen Warren <swarren@nvidia.com> # Tegra Jetson TK1 Tested-by: Robert Jarzmik <robert.jarzmik@free.fr> # mioa701_bootresume.S Tested-by: Andrew Lunn <andrew@lunn.ch> # Kirkwood Tested-by: Shawn Guo <shawn.guo@freescale.com> Tested-by: Tony Lindgren <tony@atomide.com> # OMAPs Tested-by: Gregory CLEMENT <gregory.clement@free-electrons.com> # Armada XP, 375, 385 Acked-by: Sekhar Nori <nsekhar@ti.com> # DaVinci Acked-by: Christoffer Dall <christoffer.dall@linaro.org> # kvm/hyp Acked-by: Haojian Zhuang <haojian.zhuang@gmail.com> # PXA3xx Acked-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com> # Xen Tested-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> # ARMv7M Tested-by: Simon Horman <horms+renesas@verge.net.au> # Shmobile Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-12-13	ARM: 7207/1: Use generic ARM instruction set condition code checks for nwfpe.	Leif Lindholm	1	-3/+5
	This patch changes the nwfpe implementation to use the new generic ARM instruction set condition code checks, rather than a local implementation. It also removes the existing condition code checking, which has been used for the generic support (in kernel/opcodes.{ch}). This code has not been tested beyond building, linking and booting. Signed-off-by: Leif Lindholm <leif.lindholm@arm.com> Reviewed-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2010-04-21	ARM: fix build error in arch/arm/kernel/process.c	Russell King	1	-4/+4
	/tmp/ccJ3ssZW.s: Assembler messages: /tmp/ccJ3ssZW.s:1952: Error: can't resolve `.text' {.text section} - `.LFB1077' This is caused because: .section .data .section .text .section .text .previous does not return us to the .text section, but the .data section; this makes use of .previous dangerous if the ordering of previous sections is not known. Fix up the other users of .previous; .pushsection and .popsection are a safer pairing to use than .section and .previous. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2007-10-12	[ARM] 4581/1: Fix the conditional execution of the NWFPE instructions	Catalin Marinas	1	-11/+14
	Starting with ARMv7-A, conditional execution of undefined instructions can trigger an exception even if the condition check fails. This patch modifies the NWFPE support to check the condition before emulating the instruction. Signed-off-by: Catalin Marinas <catalin.marinas@arm.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2005-04-16	Linux-2.6.12-rc2	Linus Torvalds	1	-0/+119
	Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!