kernel/arch/arm/include/asm/prom.h, branch linux-5.14.y

ARM: 9011/1: centralize phys-to-virt conversion of DT/ATAGS address

2020-10-27T12:10:59Z

Before moving the DT mapping out of the linear region, let's prepare for this change by removing all the phys-to-virt translations of the __atags_pointer variable, and perform this translation only once at setup time. Tested-by: Linus Walleij Reviewed-by: Linus Walleij Acked-by: Nicolas Pitre Signed-off-by: Ard Biesheuvel Signed-off-by: Russell King

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500

2019-06-19T15:09:55Z

Based on 2 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license version 2 as published by the free software foundation this program is free software you can redistribute it and or modify it under the terms of the gnu general public license version 2 as published by the free software foundation # extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 4122 file(s). Signed-off-by: Thomas Gleixner Reviewed-by: Enrico Weigelt Reviewed-by: Kate Stewart Reviewed-by: Allison Randal Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190604081206.933168790@linutronix.de Signed-off-by: Greg Kroah-Hartman

of/fdt: move memreserve and dtb memory reservations into core

2014-04-30T05:59:17Z

Move the /memreserve/ processing and dtb memory reservations into early_init_fdt_scan_reserved_mem. This converts arm, arm64, and powerpc as they are the only users of early_init_fdt_scan_reserved_mem. memblock_reserve is safe to call on the same region twice, so the reservation check for the dtb in powerpc 32-bit reservations is safe to remove. Signed-off-by: Rob Herring Tested-by: Michal Simek Cc: Russell King Cc: Catalin Marinas Cc: Will Deacon Cc: Benjamin Herrenschmidt Cc: Paul Mackerras Tested-by: Grant Likely Tested-by: Stephen Chivers

of: remove HAVE_ARCH_DEVTREE_FIXUPS

2013-10-10T01:04:08Z

HAVE_ARCH_DEVTREE_FIXUPS appears to always be needed except for sparc, but it is only used for /proc/device-teee and sparc does not enable /proc/device-tree. So this option is redundant. Remove the option and always enable it. This has the side effect of fixing /proc/device-tree on arches such as arm64 which failed to define this option. Signed-off-by: Rob Herring Acked-by: Vineet Gupta Acked-by: Grant Likely Cc: Russell King Cc: James Hogan Cc: Michal Simek Cc: Jonas Bonn Cc: Benjamin Herrenschmidt Cc: Paul Mackerras Cc: Thomas Gleixner Cc: Ingo Molnar Cc: "H. Peter Anvin" Cc: x86@kernel.org Cc: Chris Zankel Cc: Max Filippov

ARM: constify machine_desc structure uses

2013-07-26T13:55:59Z

struct machine_desc records are defined everywhere as a 'const' structure, but unfortuantely it loses its const-ness through the use of linker magic - the symbols which surround the section are not declared const so it becomes possible not to use 'const' for pointers to these const structures. Let's fix this oversight - all pointers to these structures should be marked const too. Signed-off-by: Russell King

Merge branch 'for-linus' of git://git.linaro.org/people/rmk/linux-arm

2012-12-12T19:30:02Z

Pull ARM updates from Russell King: "Here's the updates for ARM for this merge window, which cover quite a variety of areas. There's a bunch of patch series from Will tackling various bugs like the PROT_NONE handling, ASID allocation, cluster boot protocol and ASID TLB tagging updates. We move to a build-time sorted exception table rather than doing the sorting at run-time, add support for the secure computing filter, and some updates to the perf code. We also have sorted out the placement of some headers, fixed some build warnings, fixed some hotplug problems with the per-cpu TWD code." * 'for-linus' of git://git.linaro.org/people/rmk/linux-arm: (73 commits) ARM: 7594/1: Add .smp entry for REALVIEW_EB ARM: 7599/1: head: Remove boot-time HYP mode check for v5 and below ARM: 7598/1: net: bpf_jit_32: fix sp-relative load/stores offsets. ARM: 7595/1: syscall: rework ordering in syscall_trace_exit ARM: 7596/1: mmci: replace readsl/writesl with ioread32_rep/iowrite32_rep ARM: 7597/1: net: bpf_jit_32: fix kzalloc gfp/size mismatch. ARM: 7593/1: nommu: do not enable DCACHE_WORD_ACCESS when !CONFIG_MMU ARM: 7592/1: nommu: prevent generation of kernel unaligned memory accesses ARM: 7591/1: nommu: Enable the strict alignment (CR_A) bit only if ARCH < v6 ARM: 7590/1: /proc/interrupts: limit the display of IPIs to online CPUs only ARM: 7587/1: implement optimized percpu variable access ARM: 7589/1: integrator: pass the lm resource to amba ARM: 7588/1: amba: create a resource parent registrator ARM: 7582/2: rename kvm_seq to vmalloc_seq so to avoid confusion with KVM ARM: 7585/1: kernel: fix nr_cpu_ids check in DT logical map init ARM: 7584/1: perf: fix link error when CONFIG_HW_PERF_EVENTS is not selected ARM: gic: use a private mapping for CPU target interfaces ARM: kernel: add logical mappings look-up ARM: kernel: add cpu logical map DT init in setup_arch ARM: kernel: add device tree init map function ...

ARM: kernel: add device tree init map function

2012-11-19T15:44:33Z

When booting through a device tree, the kernel cpu logical id map can be initialized using device tree data passed by FW or through an embedded blob. This patch adds a function that parses device tree "cpu" nodes and retrieves the corresponding CPUs hardware identifiers (MPIDR). It sets the possible cpus and the cpu logical map values according to the number of CPUs defined in the device tree and respective properties. The device tree HW identifiers are considered valid if all CPU nodes contain a "reg" property, there are no duplicate "reg" entries and the DT defines a CPU node whose "reg" property matches the MPIDR[23:0] of the boot CPU. The primary CPU is assigned cpu logical number 0 to keep the current convention valid. Current bindings documentation is included in the patch: Documentation/devicetree/bindings/arm/cpus.txt Signed-off-by: Lorenzo Pieralisi Acked-by: Nicolas Pitre

arm-dt: Enable DT proc updates.

2012-11-15T16:30:18Z

This simple patch enables dynamic changes of the DT tree on runtime to be visible to the device-tree proc interface. Signed-off-by: Pantelis Antoniou Acked-by: Rob Herring Signed-off-by: Grant Likely

ARM: get rid of asm/irq.h in asm/prom.h

2012-03-24T09:38:54Z

Avoid potential build problems caused by lacking mach/irqs.h includes on non-OF builds caused by an errant include in asm/prom.h. asm/prom.h requires nothing from asm/irq.h, as Grant says: On Mon, Feb 06, 2012 at 05:56:23AM +0000, Grant Likely wrote: > On Sat, Feb 04, 2012 at 10:17:48PM +0000, Russell King wrote: > > Finally, do we need asm/irq.h in our asm/prom.h ? That's causing > > fragility between DT and non-DT builds, because people are finding > > that their DT builds work without their mach/irqs.h includes but > > fail when built with non-DT. The only thing which DT might need - > > at the most - is NR_IRQS, but I'd hope with things like irq domains > > it doesn't actually require it. > > I don't think so. There may be a file or two that break because they're > not including everything they need, but I don't think anything in the > header requires it. Signed-off-by: Russell King

ARM: prom.h: Fix build error by removing unneeded header file

2012-01-05T06:47:52Z

Fix the following build error: CC [M] fs/udf/balloc.o In file included from /home/fabio/next/linux-next/arch/arm/include/asm/prom.h:16, from include/linux/of.h:140, from include/asm-generic/gpio.h:7, from arch/arm/plat-mxc/include/mach/irqs.h:14, from /home/fabio/next/linux-next/arch/arm/include/asm/irq.h:4, from /home/fabio/next/linux-next/arch/arm/include/asm/hardirq.h:6, from include/linux/hardirq.h:7, from include/linux/highmem.h:8, from include/linux/pagemap.h:10, from include/linux/buffer_head.h:13, from fs/udf/udfdecl.h:11, from fs/udf/balloc.c:22: /home/fabio/next/linux-next/arch/arm/include/asm/setup.h:146: error: redefinition of 'struct tag' Signed-off-by: Fabio Estevam [grant.likely: fix build failure on drivers/of/fdt.c] Signed-off-by: Grant Likely