BMC/Intel-BMC/linux.git/arch/arm64/kernel/psci.c, branch dev-5.2

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 174

2019-05-30T18:26:41+00:00

Based on 1 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 distributed in the hope that it will be useful but without any warranty without even the implied warranty of merchantability or fitness for a particular purpose see the gnu general public license for more details extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 655 file(s). Signed-off-by: Thomas Gleixner Reviewed-by: Allison Randal Reviewed-by: Kate Stewart Reviewed-by: Richard Fontana Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190527070034.575739538@linutronix.de Signed-off-by: Greg Kroah-Hartman

arm64: remove unused asm/compiler.h header file

2018-10-01T10:57:04+00:00

arm64 does not define CONFIG_HAVE_ARCH_COMPILER_H, nor does it keep anything useful in its copy of asm/compiler.h, so let's remove it before anybody starts using it. Acked-by: Will Deacon Signed-off-by: Ard Biesheuvel Signed-off-by: Catalin Marinas

arm64: Use __pa_symbol for kernel symbols

2017-01-12T15:05:39+00:00

__pa_symbol is technically the marcro that should be used for kernel symbols. Switch to this as a pre-requisite for DEBUG_VIRTUAL which will do bounds checking. Reviewed-by: Mark Rutland Tested-by: Mark Rutland Signed-off-by: Laura Abbott Signed-off-by: Will Deacon

ARM: 8511/1: ARM64: kernel: PSCI: move PSCI idle management code to drivers/firmware

2016-02-11T15:33:38+00:00

ARM64 PSCI kernel interfaces that initialize idle states and implement the suspend API to enter them are generic and can be shared with the ARM architecture. To achieve that goal, this patch moves ARM64 PSCI idle management code to drivers/firmware, so that the interface to initialize and enter idle states can actually be shared by ARM and ARM64 arches back-ends. The ARM generic CPUidle implementation also requires the definition of a cpuidle_ops section entry for the kernel to initialize the CPUidle operations at boot based on the enable-method (ie ARM64 has the statically initialized cpu_ops counterparts for that purpose); therefore this patch also adds the required section entry on CONFIG_ARM for PSCI so that the kernel can initialize the PSCI CPUidle back-end when PSCI is the probed enable-method. On ARM64 this patch provides no functional change. Signed-off-by: Lorenzo Pieralisi Acked-by: Daniel Lezcano Acked-by: Catalin Marinas [arch/arm64] Acked-by: Mark Rutland Tested-by: Jisheng Zhang Cc: Will Deacon Cc: Sudeep Holla Cc: Daniel Lezcano Cc: Catalin Marinas Cc: Mark Rutland Cc: Jisheng Zhang Signed-off-by: Russell King

drivers: firmware: psci: move power_state handling to generic code

2015-10-02T13:35:16+00:00

Functions implemented on arm64 to check if a power_state parameter is valid and if the power_state implies context loss are not arm64 specific and should be moved to generic code so that they can be reused on arm systems too. This patch moves the functions handling the power_state parameter to generic PSCI firmware layer code. Signed-off-by: Lorenzo Pieralisi Acked-by: Will Deacon Acked-by: Sudeep Holla Tested-by: Jisheng Zhang Cc: Catalin Marinas Cc: Mark Rutland

Merge branch 'aarch64/psci/drivers' into aarch64/for-next/core

2015-08-05T13:14:06+00:00

Move our PSCI implementation out into drivers/firmware/ where it can be shared with arch/arm/. Conflicts: arch/arm64/kernel/psci.c

arm64: psci: factor invocation code to drivers

2015-08-03T11:33:39+00:00

To enable sharing with arm, move the core PSCI framework code to drivers/firmware. This results in a minor gain in lines of code, but this will quickly be amortised by the removal of code currently duplicated in arch/arm. Signed-off-by: Mark Rutland Acked-by: Catalin Marinas Reviewed-by: Hanjun Guo Tested-by: Hanjun Guo Cc: Lorenzo Pieralisi Cc: Will Deacon Signed-off-by: Will Deacon

arm64: force CONFIG_SMP=y and remove redundant #ifdefs

2015-07-27T10:08:40+00:00

Nobody seems to be producing !SMP systems anymore, so this is just becoming a source of kernel bugs, particularly if people want to use coherent DMA with non-shared pages. This patch forces CONFIG_SMP=y for arm64, removing a modest amount of code in the process. Signed-off-by: Will Deacon

arm64: kernel: rename __cpu_suspend to keep it aligned with arm

2015-06-19T13:46:39+00:00

This patch renames __cpu_suspend to cpu_suspend so that it's aligned with ARM32. It also removes the redundant wrapper created. This is in preparation to implement generic PSCI system suspend using the cpu_{suspend,resume} which now has the same interface on both ARM and ARM64. Cc: Mark Rutland Reviewed-by: Lorenzo Pieralisi Reviewed-by: Ashwin Chaugule Signed-off-by: Sudeep Holla Signed-off-by: Catalin Marinas

arm64: psci: fix !CONFIG_HOTPLUG_CPU build warning

2015-06-11T17:20:27+00:00

When building without CONFIG_HOTPLUG_CPU, GCC complains (rightly) that psci_tos_resident_on is unused: arch/arm64/kernel/psci.c:61:13: warning: ‘psci_tos_resident_on’ defined but not used [-Wunused-function] static bool psci_tos_resident_on(int cpu) As it's only ever used when CONFIG_HOTPLUG_CPU is selected, let's move it into the existing ifdef. Signed-off-by: Will Deacon [Mark: write commit message] Signed-off-by: Mark Rutland Signed-off-by: Catalin Marinas