/* * linux/include/asm-generic/topology.h * * Written by: Matthew Dobson, IBM Corporation * * Copyright (C) 2002, IBM Corp. * * All rights reserved. * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * 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, GOOD TITLE or * NON INFRINGEMENT. See the GNU General Public License for more * details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. * * Send feedback to */ #ifndef _ASM_GENERIC_TOPOLOGY_H #define _ASM_GENERIC_TOPOLOGY_H #ifndef CONFIG_NUMA /* Other architectures wishing to use this simple topology API should fill in the below functions as appropriate in their own file. */ #ifndef cpu_to_node #define cpu_to_node(cpu) ((void)(cpu),0) #endif #ifndef set_numa_node #define set_numa_node(node) #endif #ifndef set_cpu_numa_node #define set_cpu_numa_node(cpu, node) #endif #ifndef cpu_to_mem #define cpu_to_mem(cpu) ((void)(cpu),0) #endif #ifndef parent_node #define parent_node(node) ((void)(node),0) #endif #ifndef cpumask_of_node #define cpumask_of_node(node) ((void)node, cpu_online_mask) #endif #ifndef pcibus_to_node #define pcibus_to_node(bus) ((void)(bus), -1) #endif #ifndef cpumask_of_pcibus #define cpumask_of_pcibus(bus) (pcibus_to_node(bus) == -1 ? \ cpu_all_mask : \ cpumask_of_node(pcibus_to_node(bus))) #endif #endif /* CONFIG_NUMA */ #if !defined(CONFIG_NUMA) || !defined(CONFIG_HAVE_MEMORYLESS_NODES) #ifndef set_numa_mem #define set_numa_mem(node) #endif #ifndef set_cpu_numa_mem #define set_cpu_numa_mem(cpu, node) #endif #endif /* !CONFIG_NUMA || !CONFIG_HAVE_MEMORYLESS_NODES */ #endif /* _ASM_GENERIC_TOPOLOGY_H */ nux/net-next.git/diff/include/dt-bindings?h=nds-private-remove&id=c26665ab5c49ad3e142e0f054ca3204f259ba09c'>diff
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authorBorislav Petkov <bp@suse.de>2017-01-20 21:29:40 +0100
committerThomas Gleixner <tglx@linutronix.de>2017-01-23 09:39:55 +0100
commitc26665ab5c49ad3e142e0f054ca3204f259ba09c (patch)
tree3bab11918e18e9d25ef7544dba05cdf39d1abec5 /include/dt-bindings
parent7a308bb3016f57e5be11a677d15b821536419d36 (diff)
x86/microcode/intel: Drop stashed AP patch pointer optimization
This was meant to save us the scanning of the microcode containter in the initrd since the first AP had already done that but it can also hurt us: Imagine a single hyperthreaded CPU (Intel(R) Atom(TM) CPU N270, for example) which updates the microcode on the BSP but since the microcode engine is shared between the two threads, the update on CPU1 doesn't happen because it has already happened on CPU0 and we don't find a newer microcode revision on CPU1. Which doesn't set the intel_ucode_patch pointer and at initrd jettisoning time we don't save the microcode patch for later application. Now, when we suspend to RAM, the loaded microcode gets cleared so we need to reload but there's no patch saved in the cache. Removing the optimization fixes this issue and all is fine and dandy. Fixes: 06b8534cb728 ("x86/microcode: Rework microcode loading") Signed-off-by: Borislav Petkov <bp@suse.de> Reviewed-by: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/r/20170120202955.4091-2-bp@alien8.de Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'include/dt-bindings')